diff options
Diffstat (limited to 'core/src')
| -rw-r--r-- | core/src/fpdfapi/fpdf_parser/fpdf_parser_objects_unittest.cpp | 320 | ||||
| -rw-r--r-- | core/src/fxcodec/codec/fx_codec_bmp.cpp | 254 | ||||
| -rw-r--r-- | core/src/fxcodec/codec/fx_codec_gif.cpp | 378 | ||||
| -rw-r--r-- | core/src/fxcodec/codec/fx_codec_png.cpp | 512 | ||||
| -rw-r--r-- | core/src/fxcodec/codec/fx_codec_progress.cpp | 4708 | ||||
| -rw-r--r-- | core/src/fxcodec/codec/fx_codec_progress.h | 446 | ||||
| -rw-r--r-- | core/src/fxcodec/codec/fx_codec_tiff.cpp | 1088 | ||||
| -rw-r--r-- | core/src/fxcodec/lbmp/fx_bmp.cpp | 1950 | ||||
| -rw-r--r-- | core/src/fxcodec/lbmp/fx_bmp.h | 310 | ||||
| -rw-r--r-- | core/src/fxcodec/lgif/fx_gif.cpp | 2852 | ||||
| -rw-r--r-- | core/src/fxcodec/lgif/fx_gif.h | 664 |
11 files changed, 6741 insertions, 6741 deletions
diff --git a/core/src/fpdfapi/fpdf_parser/fpdf_parser_objects_unittest.cpp b/core/src/fpdfapi/fpdf_parser/fpdf_parser_objects_unittest.cpp index 10cfecf042..3965399254 100644 --- a/core/src/fpdfapi/fpdf_parser/fpdf_parser_objects_unittest.cpp +++ b/core/src/fpdfapi/fpdf_parser/fpdf_parser_objects_unittest.cpp @@ -1,160 +1,160 @@ -// Copyright 2016 PDFium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "core/include/fpdfapi/fpdf_objects.h"
-
-#include <memory>
-#include <vector>
-
-#include "core/include/fxcrt/fx_basic.h"
-#include "testing/gtest/include/gtest/gtest.h"
-
-class PDFObjectsTest : public testing::Test {
- public:
- void SetUp() override {
- // Initialize different kinds of objects.
- // Boolean objects.
- CPDF_Boolean* boolean_false_obj = new CPDF_Boolean(false);
- CPDF_Boolean* boolean_true_obj = new CPDF_Boolean(true);
- // Number objects.
- CPDF_Number* number_int_obj = new CPDF_Number(1245);
- CPDF_Number* number_float_obj = new CPDF_Number(9.00345f);
- // String objects.
- CPDF_String* str_reg_obj = new CPDF_String(L"A simple test");
- CPDF_String* str_spec_obj = new CPDF_String(L"\t\n");
- // Name object.
- CPDF_Name* name_obj = new CPDF_Name("space");
- // Array object.
- CPDF_Array* array_obj = new CPDF_Array;
- array_obj->InsertAt(0, new CPDF_Number(8902));
- array_obj->InsertAt(1, new CPDF_Name("address"));
- // Dictionary object.
- m_DictObj = new CPDF_Dictionary;
- m_DictObj->SetAt("bool", new CPDF_Boolean(false));
- m_DictObj->SetAt("num", new CPDF_Number(0.23f));
- // Stream object.
- const char content[] = "abcdefghijklmnopqrstuvwxyz";
- size_t buf_len = FX_ArraySize(content);
- uint8_t* buf = reinterpret_cast<uint8_t*>(malloc(buf_len));
- memcpy(buf, content, buf_len);
- m_StreamDictObj = new CPDF_Dictionary;
- m_StreamDictObj->SetAt("key1", new CPDF_String(L" test dict"));
- m_StreamDictObj->SetAt("key2", new CPDF_Number(-1));
- CPDF_Stream* stream_obj = new CPDF_Stream(buf, buf_len, m_StreamDictObj);
- // Null Object.
- CPDF_Null* null_obj = new CPDF_Null;
- // All direct objects.
- CPDF_Object* objs[] = {boolean_false_obj, boolean_true_obj, number_int_obj,
- number_float_obj, str_reg_obj, str_spec_obj,
- name_obj, array_obj, m_DictObj,
- stream_obj, null_obj};
- for (int i = 0; i < FX_ArraySize(objs); ++i)
- m_DirectObjs.emplace_back(objs[i]);
-
- // Indirect references to indirect objects.
- m_ObjHolder.reset(new CPDF_IndirectObjectHolder(nullptr));
- CPDF_Object* referred_objs[] = {
- boolean_true_obj, number_int_obj, str_spec_obj, name_obj,
- array_obj, m_DictObj, stream_obj};
- for (int i = 0; i < FX_ArraySize(referred_objs); ++i) {
- m_ObjHolder->AddIndirectObject(referred_objs[i]);
- m_RefObjs.emplace_back(
- new CPDF_Reference(m_ObjHolder.get(), referred_objs[i]->GetObjNum()));
- }
- }
-
- protected:
- using ScopedObj = std::unique_ptr<CPDF_Object, ReleaseDeleter<CPDF_Object>>;
-
- // m_ObjHolder needs to be declared first and destructed last since it also
- // refers to some objects in m_DirectObjs.
- std::unique_ptr<CPDF_IndirectObjectHolder> m_ObjHolder;
- std::vector<ScopedObj> m_DirectObjs;
- std::vector<ScopedObj> m_RefObjs;
- CPDF_Dictionary* m_DictObj;
- CPDF_Dictionary* m_StreamDictObj;
-};
-
-TEST_F(PDFObjectsTest, GetString) {
- const char* direct_obj_results[] = {
- "false", "true", "1245", "9.00345", "A simple test", "\t\n", "space",
- "", "", "", ""};
- // Check for direct objects.
- for (int i = 0; i < m_DirectObjs.size(); ++i)
- EXPECT_STREQ(m_DirectObjs[i]->GetString().c_str(), direct_obj_results[i]);
-
- // Check indirect references.
- const char* indirect_obj_results[] = {"true", "1245", "\t\n", "space",
- "", "", ""};
- for (int i = 0; i < m_RefObjs.size(); ++i) {
- EXPECT_STREQ(m_RefObjs[i]->GetString().c_str(), indirect_obj_results[i]);
- }
-}
-
-TEST_F(PDFObjectsTest, GetConstString) {
- const char* direct_obj_results[] = {
- nullptr, nullptr, nullptr, nullptr, "A simple test", "\t\n",
- "space", nullptr, nullptr, nullptr, nullptr};
- // Check for direct objects.
- for (int i = 0; i < m_DirectObjs.size(); ++i) {
- if (!direct_obj_results[i]) {
- EXPECT_EQ(m_DirectObjs[i]->GetConstString().GetCStr(),
- direct_obj_results[i]);
- } else {
- EXPECT_STREQ(m_DirectObjs[i]->GetConstString().GetCStr(),
- direct_obj_results[i]);
- }
- }
- // Check indirect references.
- const char* indirect_obj_results[] = {nullptr, nullptr, "\t\n", "space",
- nullptr, nullptr, nullptr};
- for (int i = 0; i < m_RefObjs.size(); ++i) {
- if (!indirect_obj_results[i])
- EXPECT_EQ(m_RefObjs[i]->GetConstString().GetCStr(), nullptr);
- else {
- EXPECT_STREQ(m_RefObjs[i]->GetConstString().GetCStr(),
- indirect_obj_results[i]);
- }
- }
-}
-
-TEST_F(PDFObjectsTest, GetNumber) {
- const FX_FLOAT direct_obj_results[] = {0, 0, 1245, 9.00345f, 0, 0,
- 0, 0, 0, 0, 0};
- // Check for direct objects.
- for (int i = 0; i < m_DirectObjs.size(); ++i)
- EXPECT_EQ(m_DirectObjs[i]->GetNumber(), direct_obj_results[i]);
-
- // Check indirect references.
- const FX_FLOAT indirect_obj_results[] = {0, 1245, 0, 0, 0, 0, 0};
- for (int i = 0; i < m_RefObjs.size(); ++i)
- EXPECT_EQ(m_RefObjs[i]->GetNumber(), indirect_obj_results[i]);
-}
-
-TEST_F(PDFObjectsTest, GetInteger) {
- const int direct_obj_results[] = {0, 1, 1245, 9, 0, 0, 0, 0, 0, 0, 0};
- // Check for direct objects.
- for (int i = 0; i < m_DirectObjs.size(); ++i)
- EXPECT_EQ(m_DirectObjs[i]->GetInteger(), direct_obj_results[i]);
-
- // Check indirect references.
- const int indirect_obj_results[] = {1, 1245, 0, 0, 0, 0, 0};
- for (int i = 0; i < m_RefObjs.size(); ++i)
- EXPECT_EQ(m_RefObjs[i]->GetInteger(), indirect_obj_results[i]);
-}
-
-TEST_F(PDFObjectsTest, GetDict) {
- const CPDF_Dictionary* direct_obj_results[] = {
- nullptr, nullptr, nullptr, nullptr, nullptr, nullptr,
- nullptr, nullptr, m_DictObj, m_StreamDictObj, nullptr};
- // Check for direct objects.
- for (int i = 0; i < m_DirectObjs.size(); ++i)
- EXPECT_EQ(m_DirectObjs[i]->GetDict(), direct_obj_results[i]);
-
- // Check indirect references.
- const CPDF_Dictionary* indirect_obj_results[] = {
- nullptr, nullptr, nullptr, nullptr, nullptr, m_DictObj, m_StreamDictObj};
- for (int i = 0; i < m_RefObjs.size(); ++i)
- EXPECT_EQ(m_RefObjs[i]->GetDict(), indirect_obj_results[i]);
-}
+// Copyright 2016 PDFium Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. + +#include "core/include/fpdfapi/fpdf_objects.h" + +#include <memory> +#include <vector> + +#include "core/include/fxcrt/fx_basic.h" +#include "testing/gtest/include/gtest/gtest.h" + +class PDFObjectsTest : public testing::Test { + public: + void SetUp() override { + // Initialize different kinds of objects. + // Boolean objects. + CPDF_Boolean* boolean_false_obj = new CPDF_Boolean(false); + CPDF_Boolean* boolean_true_obj = new CPDF_Boolean(true); + // Number objects. + CPDF_Number* number_int_obj = new CPDF_Number(1245); + CPDF_Number* number_float_obj = new CPDF_Number(9.00345f); + // String objects. + CPDF_String* str_reg_obj = new CPDF_String(L"A simple test"); + CPDF_String* str_spec_obj = new CPDF_String(L"\t\n"); + // Name object. + CPDF_Name* name_obj = new CPDF_Name("space"); + // Array object. + CPDF_Array* array_obj = new CPDF_Array; + array_obj->InsertAt(0, new CPDF_Number(8902)); + array_obj->InsertAt(1, new CPDF_Name("address")); + // Dictionary object. + m_DictObj = new CPDF_Dictionary; + m_DictObj->SetAt("bool", new CPDF_Boolean(false)); + m_DictObj->SetAt("num", new CPDF_Number(0.23f)); + // Stream object. + const char content[] = "abcdefghijklmnopqrstuvwxyz"; + size_t buf_len = FX_ArraySize(content); + uint8_t* buf = reinterpret_cast<uint8_t*>(malloc(buf_len)); + memcpy(buf, content, buf_len); + m_StreamDictObj = new CPDF_Dictionary; + m_StreamDictObj->SetAt("key1", new CPDF_String(L" test dict")); + m_StreamDictObj->SetAt("key2", new CPDF_Number(-1)); + CPDF_Stream* stream_obj = new CPDF_Stream(buf, buf_len, m_StreamDictObj); + // Null Object. + CPDF_Null* null_obj = new CPDF_Null; + // All direct objects. + CPDF_Object* objs[] = {boolean_false_obj, boolean_true_obj, number_int_obj, + number_float_obj, str_reg_obj, str_spec_obj, + name_obj, array_obj, m_DictObj, + stream_obj, null_obj}; + for (int i = 0; i < FX_ArraySize(objs); ++i) + m_DirectObjs.emplace_back(objs[i]); + + // Indirect references to indirect objects. + m_ObjHolder.reset(new CPDF_IndirectObjectHolder(nullptr)); + CPDF_Object* referred_objs[] = { + boolean_true_obj, number_int_obj, str_spec_obj, name_obj, + array_obj, m_DictObj, stream_obj}; + for (int i = 0; i < FX_ArraySize(referred_objs); ++i) { + m_ObjHolder->AddIndirectObject(referred_objs[i]); + m_RefObjs.emplace_back( + new CPDF_Reference(m_ObjHolder.get(), referred_objs[i]->GetObjNum())); + } + } + + protected: + using ScopedObj = std::unique_ptr<CPDF_Object, ReleaseDeleter<CPDF_Object>>; + + // m_ObjHolder needs to be declared first and destructed last since it also + // refers to some objects in m_DirectObjs. + std::unique_ptr<CPDF_IndirectObjectHolder> m_ObjHolder; + std::vector<ScopedObj> m_DirectObjs; + std::vector<ScopedObj> m_RefObjs; + CPDF_Dictionary* m_DictObj; + CPDF_Dictionary* m_StreamDictObj; +}; + +TEST_F(PDFObjectsTest, GetString) { + const char* direct_obj_results[] = { + "false", "true", "1245", "9.00345", "A simple test", "\t\n", "space", + "", "", "", ""}; + // Check for direct objects. + for (int i = 0; i < m_DirectObjs.size(); ++i) + EXPECT_STREQ(m_DirectObjs[i]->GetString().c_str(), direct_obj_results[i]); + + // Check indirect references. + const char* indirect_obj_results[] = {"true", "1245", "\t\n", "space", + "", "", ""}; + for (int i = 0; i < m_RefObjs.size(); ++i) { + EXPECT_STREQ(m_RefObjs[i]->GetString().c_str(), indirect_obj_results[i]); + } +} + +TEST_F(PDFObjectsTest, GetConstString) { + const char* direct_obj_results[] = { + nullptr, nullptr, nullptr, nullptr, "A simple test", "\t\n", + "space", nullptr, nullptr, nullptr, nullptr}; + // Check for direct objects. + for (int i = 0; i < m_DirectObjs.size(); ++i) { + if (!direct_obj_results[i]) { + EXPECT_EQ(m_DirectObjs[i]->GetConstString().GetCStr(), + direct_obj_results[i]); + } else { + EXPECT_STREQ(m_DirectObjs[i]->GetConstString().GetCStr(), + direct_obj_results[i]); + } + } + // Check indirect references. + const char* indirect_obj_results[] = {nullptr, nullptr, "\t\n", "space", + nullptr, nullptr, nullptr}; + for (int i = 0; i < m_RefObjs.size(); ++i) { + if (!indirect_obj_results[i]) + EXPECT_EQ(m_RefObjs[i]->GetConstString().GetCStr(), nullptr); + else { + EXPECT_STREQ(m_RefObjs[i]->GetConstString().GetCStr(), + indirect_obj_results[i]); + } + } +} + +TEST_F(PDFObjectsTest, GetNumber) { + const FX_FLOAT direct_obj_results[] = {0, 0, 1245, 9.00345f, 0, 0, + 0, 0, 0, 0, 0}; + // Check for direct objects. + for (int i = 0; i < m_DirectObjs.size(); ++i) + EXPECT_EQ(m_DirectObjs[i]->GetNumber(), direct_obj_results[i]); + + // Check indirect references. + const FX_FLOAT indirect_obj_results[] = {0, 1245, 0, 0, 0, 0, 0}; + for (int i = 0; i < m_RefObjs.size(); ++i) + EXPECT_EQ(m_RefObjs[i]->GetNumber(), indirect_obj_results[i]); +} + +TEST_F(PDFObjectsTest, GetInteger) { + const int direct_obj_results[] = {0, 1, 1245, 9, 0, 0, 0, 0, 0, 0, 0}; + // Check for direct objects. + for (int i = 0; i < m_DirectObjs.size(); ++i) + EXPECT_EQ(m_DirectObjs[i]->GetInteger(), direct_obj_results[i]); + + // Check indirect references. + const int indirect_obj_results[] = {1, 1245, 0, 0, 0, 0, 0}; + for (int i = 0; i < m_RefObjs.size(); ++i) + EXPECT_EQ(m_RefObjs[i]->GetInteger(), indirect_obj_results[i]); +} + +TEST_F(PDFObjectsTest, GetDict) { + const CPDF_Dictionary* direct_obj_results[] = { + nullptr, nullptr, nullptr, nullptr, nullptr, nullptr, + nullptr, nullptr, m_DictObj, m_StreamDictObj, nullptr}; + // Check for direct objects. + for (int i = 0; i < m_DirectObjs.size(); ++i) + EXPECT_EQ(m_DirectObjs[i]->GetDict(), direct_obj_results[i]); + + // Check indirect references. + const CPDF_Dictionary* indirect_obj_results[] = { + nullptr, nullptr, nullptr, nullptr, nullptr, m_DictObj, m_StreamDictObj}; + for (int i = 0; i < m_RefObjs.size(); ++i) + EXPECT_EQ(m_RefObjs[i]->GetDict(), indirect_obj_results[i]); +} diff --git a/core/src/fxcodec/codec/fx_codec_bmp.cpp b/core/src/fxcodec/codec/fx_codec_bmp.cpp index 08b2f480df..2396f36c1a 100644 --- a/core/src/fxcodec/codec/fx_codec_bmp.cpp +++ b/core/src/fxcodec/codec/fx_codec_bmp.cpp @@ -1,127 +1,127 @@ -// Copyright 2014 PDFium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
-
-#include "core/include/fxcodec/fx_codec.h"
-#include "core/include/fxge/fx_dib.h"
-#include "codec_int.h"
-#include "core/src/fxcodec/lbmp/fx_bmp.h"
-struct FXBMP_Context {
- bmp_decompress_struct_p bmp_ptr;
- void* parent_ptr;
- void* child_ptr;
-
- void* (*m_AllocFunc)(unsigned int);
- void (*m_FreeFunc)(void*);
-};
-extern "C" {
-static void* _bmp_alloc_func(unsigned int size) {
- return FX_Alloc(char, size);
-}
-static void _bmp_free_func(void* p) {
- if (p != NULL) {
- FX_Free(p);
- }
-}
-};
-static void _bmp_error_data(bmp_decompress_struct_p bmp_ptr,
- const FX_CHAR* err_msg) {
- FXSYS_strncpy((char*)bmp_ptr->err_ptr, err_msg, BMP_MAX_ERROR_SIZE - 1);
- longjmp(bmp_ptr->jmpbuf, 1);
-}
-static void _bmp_read_scanline(bmp_decompress_struct_p bmp_ptr,
- int32_t row_num,
- uint8_t* row_buf) {
- FXBMP_Context* p = (FXBMP_Context*)bmp_ptr->context_ptr;
- CCodec_BmpModule* pModule = (CCodec_BmpModule*)p->parent_ptr;
- pModule->ReadScanlineCallback(p->child_ptr, row_num, row_buf);
-}
-static FX_BOOL _bmp_get_data_position(bmp_decompress_struct_p bmp_ptr,
- FX_DWORD rcd_pos) {
- FXBMP_Context* p = (FXBMP_Context*)bmp_ptr->context_ptr;
- CCodec_BmpModule* pModule = (CCodec_BmpModule*)p->parent_ptr;
- return pModule->InputImagePositionBufCallback(p->child_ptr, rcd_pos);
-}
-void* CCodec_BmpModule::Start(void* pModule) {
- FXBMP_Context* p = (FXBMP_Context*)FX_Alloc(uint8_t, sizeof(FXBMP_Context));
- if (p == NULL) {
- return NULL;
- }
- FXSYS_memset(p, 0, sizeof(FXBMP_Context));
- if (p == NULL) {
- return NULL;
- }
- p->m_AllocFunc = _bmp_alloc_func;
- p->m_FreeFunc = _bmp_free_func;
- p->bmp_ptr = NULL;
- p->parent_ptr = (void*)this;
- p->child_ptr = pModule;
- p->bmp_ptr = _bmp_create_decompress();
- if (p->bmp_ptr == NULL) {
- FX_Free(p);
- return NULL;
- }
- p->bmp_ptr->context_ptr = (void*)p;
- p->bmp_ptr->err_ptr = m_szLastError;
- p->bmp_ptr->_bmp_error_fn = _bmp_error_data;
- p->bmp_ptr->_bmp_get_row_fn = _bmp_read_scanline;
- p->bmp_ptr->_bmp_get_data_position_fn = _bmp_get_data_position;
- return p;
-}
-void CCodec_BmpModule::Finish(void* pContext) {
- FXBMP_Context* p = (FXBMP_Context*)pContext;
- if (p != NULL) {
- _bmp_destroy_decompress(&p->bmp_ptr);
- p->m_FreeFunc(p);
- }
-}
-int32_t CCodec_BmpModule::ReadHeader(void* pContext,
- int32_t* width,
- int32_t* height,
- FX_BOOL* tb_flag,
- int32_t* components,
- int32_t* pal_num,
- FX_DWORD** pal_pp,
- CFX_DIBAttribute* pAttribute) {
- FXBMP_Context* p = (FXBMP_Context*)pContext;
- if (setjmp(p->bmp_ptr->jmpbuf)) {
- return 0;
- }
- int32_t ret = _bmp_read_header(p->bmp_ptr);
- if (ret != 1) {
- return ret;
- }
- *width = p->bmp_ptr->width;
- *height = p->bmp_ptr->height;
- *tb_flag = p->bmp_ptr->imgTB_flag;
- *components = p->bmp_ptr->components;
- *pal_num = p->bmp_ptr->pal_num;
- *pal_pp = p->bmp_ptr->pal_ptr;
- if (pAttribute) {
- pAttribute->m_wDPIUnit = FXCODEC_RESUNIT_METER;
- pAttribute->m_nXDPI = p->bmp_ptr->dpi_x;
- pAttribute->m_nYDPI = p->bmp_ptr->dpi_y;
- pAttribute->m_nBmpCompressType = p->bmp_ptr->compress_flag;
- }
- return 1;
-}
-int32_t CCodec_BmpModule::LoadImage(void* pContext) {
- FXBMP_Context* p = (FXBMP_Context*)pContext;
- if (setjmp(p->bmp_ptr->jmpbuf)) {
- return 0;
- }
- return _bmp_decode_image(p->bmp_ptr);
-}
-FX_DWORD CCodec_BmpModule::GetAvailInput(void* pContext,
- uint8_t** avial_buf_ptr) {
- FXBMP_Context* p = (FXBMP_Context*)pContext;
- return _bmp_get_avail_input(p->bmp_ptr, avial_buf_ptr);
-}
-void CCodec_BmpModule::Input(void* pContext,
- const uint8_t* src_buf,
- FX_DWORD src_size) {
- FXBMP_Context* p = (FXBMP_Context*)pContext;
- _bmp_input_buffer(p->bmp_ptr, (uint8_t*)src_buf, src_size);
-}
+// Copyright 2014 PDFium Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. + +// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com + +#include "core/include/fxcodec/fx_codec.h" +#include "core/include/fxge/fx_dib.h" +#include "codec_int.h" +#include "core/src/fxcodec/lbmp/fx_bmp.h" +struct FXBMP_Context { + bmp_decompress_struct_p bmp_ptr; + void* parent_ptr; + void* child_ptr; + + void* (*m_AllocFunc)(unsigned int); + void (*m_FreeFunc)(void*); +}; +extern "C" { +static void* _bmp_alloc_func(unsigned int size) { + return FX_Alloc(char, size); +} +static void _bmp_free_func(void* p) { + if (p != NULL) { + FX_Free(p); + } +} +}; +static void _bmp_error_data(bmp_decompress_struct_p bmp_ptr, + const FX_CHAR* err_msg) { + FXSYS_strncpy((char*)bmp_ptr->err_ptr, err_msg, BMP_MAX_ERROR_SIZE - 1); + longjmp(bmp_ptr->jmpbuf, 1); +} +static void _bmp_read_scanline(bmp_decompress_struct_p bmp_ptr, + int32_t row_num, + uint8_t* row_buf) { + FXBMP_Context* p = (FXBMP_Context*)bmp_ptr->context_ptr; + CCodec_BmpModule* pModule = (CCodec_BmpModule*)p->parent_ptr; + pModule->ReadScanlineCallback(p->child_ptr, row_num, row_buf); +} +static FX_BOOL _bmp_get_data_position(bmp_decompress_struct_p bmp_ptr, + FX_DWORD rcd_pos) { + FXBMP_Context* p = (FXBMP_Context*)bmp_ptr->context_ptr; + CCodec_BmpModule* pModule = (CCodec_BmpModule*)p->parent_ptr; + return pModule->InputImagePositionBufCallback(p->child_ptr, rcd_pos); +} +void* CCodec_BmpModule::Start(void* pModule) { + FXBMP_Context* p = (FXBMP_Context*)FX_Alloc(uint8_t, sizeof(FXBMP_Context)); + if (p == NULL) { + return NULL; + } + FXSYS_memset(p, 0, sizeof(FXBMP_Context)); + if (p == NULL) { + return NULL; + } + p->m_AllocFunc = _bmp_alloc_func; + p->m_FreeFunc = _bmp_free_func; + p->bmp_ptr = NULL; + p->parent_ptr = (void*)this; + p->child_ptr = pModule; + p->bmp_ptr = _bmp_create_decompress(); + if (p->bmp_ptr == NULL) { + FX_Free(p); + return NULL; + } + p->bmp_ptr->context_ptr = (void*)p; + p->bmp_ptr->err_ptr = m_szLastError; + p->bmp_ptr->_bmp_error_fn = _bmp_error_data; + p->bmp_ptr->_bmp_get_row_fn = _bmp_read_scanline; + p->bmp_ptr->_bmp_get_data_position_fn = _bmp_get_data_position; + return p; +} +void CCodec_BmpModule::Finish(void* pContext) { + FXBMP_Context* p = (FXBMP_Context*)pContext; + if (p != NULL) { + _bmp_destroy_decompress(&p->bmp_ptr); + p->m_FreeFunc(p); + } +} +int32_t CCodec_BmpModule::ReadHeader(void* pContext, + int32_t* width, + int32_t* height, + FX_BOOL* tb_flag, + int32_t* components, + int32_t* pal_num, + FX_DWORD** pal_pp, + CFX_DIBAttribute* pAttribute) { + FXBMP_Context* p = (FXBMP_Context*)pContext; + if (setjmp(p->bmp_ptr->jmpbuf)) { + return 0; + } + int32_t ret = _bmp_read_header(p->bmp_ptr); + if (ret != 1) { + return ret; + } + *width = p->bmp_ptr->width; + *height = p->bmp_ptr->height; + *tb_flag = p->bmp_ptr->imgTB_flag; + *components = p->bmp_ptr->components; + *pal_num = p->bmp_ptr->pal_num; + *pal_pp = p->bmp_ptr->pal_ptr; + if (pAttribute) { + pAttribute->m_wDPIUnit = FXCODEC_RESUNIT_METER; + pAttribute->m_nXDPI = p->bmp_ptr->dpi_x; + pAttribute->m_nYDPI = p->bmp_ptr->dpi_y; + pAttribute->m_nBmpCompressType = p->bmp_ptr->compress_flag; + } + return 1; +} +int32_t CCodec_BmpModule::LoadImage(void* pContext) { + FXBMP_Context* p = (FXBMP_Context*)pContext; + if (setjmp(p->bmp_ptr->jmpbuf)) { + return 0; + } + return _bmp_decode_image(p->bmp_ptr); +} +FX_DWORD CCodec_BmpModule::GetAvailInput(void* pContext, + uint8_t** avial_buf_ptr) { + FXBMP_Context* p = (FXBMP_Context*)pContext; + return _bmp_get_avail_input(p->bmp_ptr, avial_buf_ptr); +} +void CCodec_BmpModule::Input(void* pContext, + const uint8_t* src_buf, + FX_DWORD src_size) { + FXBMP_Context* p = (FXBMP_Context*)pContext; + _bmp_input_buffer(p->bmp_ptr, (uint8_t*)src_buf, src_size); +} diff --git a/core/src/fxcodec/codec/fx_codec_gif.cpp b/core/src/fxcodec/codec/fx_codec_gif.cpp index 45aeb09c41..d61ccc6f70 100644 --- a/core/src/fxcodec/codec/fx_codec_gif.cpp +++ b/core/src/fxcodec/codec/fx_codec_gif.cpp @@ -1,189 +1,189 @@ -// Copyright 2014 PDFium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
-
-#include "core/include/fxcodec/fx_codec.h"
-#include "core/include/fxge/fx_dib.h"
-#include "codec_int.h"
-#include "core/src/fxcodec/lgif/fx_gif.h"
-struct FXGIF_Context {
- gif_decompress_struct_p gif_ptr;
- void* parent_ptr;
- void* child_ptr;
-
- void* (*m_AllocFunc)(unsigned int);
- void (*m_FreeFunc)(void*);
-};
-extern "C" {
-static void* _gif_alloc_func(unsigned int size) {
- return FX_Alloc(char, size);
-}
-static void _gif_free_func(void* p) {
- if (p != NULL) {
- FX_Free(p);
- }
-}
-};
-static void _gif_error_data(gif_decompress_struct_p gif_ptr,
- const FX_CHAR* err_msg) {
- FXSYS_strncpy((char*)gif_ptr->err_ptr, err_msg, GIF_MAX_ERROR_SIZE - 1);
- longjmp(gif_ptr->jmpbuf, 1);
-}
-static uint8_t* _gif_ask_buf_for_pal(gif_decompress_struct_p gif_ptr,
- int32_t pal_size) {
- FXGIF_Context* p = (FXGIF_Context*)gif_ptr->context_ptr;
- CCodec_GifModule* pModule = (CCodec_GifModule*)p->parent_ptr;
- return pModule->AskLocalPaletteBufCallback(
- p->child_ptr, _gif_get_frame_num(gif_ptr), pal_size);
-}
-static void _gif_record_current_position(gif_decompress_struct_p gif_ptr,
- FX_DWORD* cur_pos_ptr) {
- FXGIF_Context* p = (FXGIF_Context*)gif_ptr->context_ptr;
- CCodec_GifModule* pModule = (CCodec_GifModule*)p->parent_ptr;
- pModule->RecordCurrentPositionCallback(p->child_ptr, *cur_pos_ptr);
-}
-static void _gif_read_scanline(gif_decompress_struct_p gif_ptr,
- int32_t row_num,
- uint8_t* row_buf) {
- FXGIF_Context* p = (FXGIF_Context*)gif_ptr->context_ptr;
- CCodec_GifModule* pModule = (CCodec_GifModule*)p->parent_ptr;
- pModule->ReadScanlineCallback(p->child_ptr, row_num, row_buf);
-}
-static FX_BOOL _gif_get_record_position(gif_decompress_struct_p gif_ptr,
- FX_DWORD cur_pos,
- int32_t left,
- int32_t top,
- int32_t width,
- int32_t height,
- int32_t pal_num,
- void* pal_ptr,
- int32_t delay_time,
- FX_BOOL user_input,
- int32_t trans_index,
- int32_t disposal_method,
- FX_BOOL interlace) {
- FXGIF_Context* p = (FXGIF_Context*)gif_ptr->context_ptr;
- CCodec_GifModule* pModule = (CCodec_GifModule*)p->parent_ptr;
- return pModule->InputRecordPositionBufCallback(
- p->child_ptr, cur_pos, FX_RECT(left, top, left + width, top + height),
- pal_num, pal_ptr, delay_time, user_input, trans_index, disposal_method,
- interlace);
-}
-void* CCodec_GifModule::Start(void* pModule) {
- FXGIF_Context* p = (FXGIF_Context*)FX_Alloc(uint8_t, sizeof(FXGIF_Context));
- if (p == NULL) {
- return NULL;
- }
- FXSYS_memset(p, 0, sizeof(FXGIF_Context));
- p->m_AllocFunc = _gif_alloc_func;
- p->m_FreeFunc = _gif_free_func;
- p->gif_ptr = NULL;
- p->parent_ptr = (void*)this;
- p->child_ptr = pModule;
- p->gif_ptr = _gif_create_decompress();
- if (p->gif_ptr == NULL) {
- FX_Free(p);
- return NULL;
- }
- p->gif_ptr->context_ptr = (void*)p;
- p->gif_ptr->err_ptr = m_szLastError;
- p->gif_ptr->_gif_error_fn = _gif_error_data;
- p->gif_ptr->_gif_ask_buf_for_pal_fn = _gif_ask_buf_for_pal;
- p->gif_ptr->_gif_record_current_position_fn = _gif_record_current_position;
- p->gif_ptr->_gif_get_row_fn = _gif_read_scanline;
- p->gif_ptr->_gif_get_record_position_fn = _gif_get_record_position;
- return p;
-}
-void CCodec_GifModule::Finish(void* pContext) {
- FXGIF_Context* p = (FXGIF_Context*)pContext;
- if (p != NULL) {
- _gif_destroy_decompress(&p->gif_ptr);
- p->m_FreeFunc(p);
- }
-}
-int32_t CCodec_GifModule::ReadHeader(void* pContext,
- int* width,
- int* height,
- int* pal_num,
- void** pal_pp,
- int* bg_index,
- CFX_DIBAttribute* pAttribute) {
- FXGIF_Context* p = (FXGIF_Context*)pContext;
- if (setjmp(p->gif_ptr->jmpbuf)) {
- return 0;
- }
- int32_t ret = _gif_read_header(p->gif_ptr);
- if (ret != 1) {
- return ret;
- }
- if (pAttribute) {
- }
- *width = p->gif_ptr->width;
- *height = p->gif_ptr->height;
- *pal_num = p->gif_ptr->global_pal_num;
- *pal_pp = p->gif_ptr->global_pal_ptr;
- *bg_index = p->gif_ptr->bc_index;
- return 1;
-}
-int32_t CCodec_GifModule::LoadFrameInfo(void* pContext, int* frame_num) {
- FXGIF_Context* p = (FXGIF_Context*)pContext;
- if (setjmp(p->gif_ptr->jmpbuf)) {
- return 0;
- }
- int32_t ret = _gif_get_frame(p->gif_ptr);
- if (ret != 1) {
- return ret;
- }
- *frame_num = _gif_get_frame_num(p->gif_ptr);
- return 1;
-}
-int32_t CCodec_GifModule::LoadFrame(void* pContext,
- int frame_num,
- CFX_DIBAttribute* pAttribute) {
- FXGIF_Context* p = (FXGIF_Context*)pContext;
- if (setjmp(p->gif_ptr->jmpbuf)) {
- return 0;
- }
- int32_t ret = _gif_load_frame(p->gif_ptr, frame_num);
- if (ret == 1) {
- if (pAttribute) {
- pAttribute->m_nGifLeft =
- p->gif_ptr->img_ptr_arr_ptr->GetAt(frame_num)->image_info_ptr->left;
- pAttribute->m_nGifTop =
- p->gif_ptr->img_ptr_arr_ptr->GetAt(frame_num)->image_info_ptr->top;
- pAttribute->m_fAspectRatio = p->gif_ptr->pixel_aspect;
- if (p->gif_ptr->cmt_data_ptr) {
- const uint8_t* buf =
- (const uint8_t*)p->gif_ptr->cmt_data_ptr->GetBuffer(0);
- FX_DWORD len = p->gif_ptr->cmt_data_ptr->GetLength();
- if (len > 21) {
- uint8_t size = *buf++;
- if (size) {
- pAttribute->m_strAuthor = CFX_ByteString(buf, size);
- } else {
- pAttribute->m_strAuthor.Empty();
- }
- buf += size;
- size = *buf++;
- if (size == 20) {
- FXSYS_memcpy(pAttribute->m_strTime, buf, size);
- }
- }
- }
- }
- }
- return ret;
-}
-FX_DWORD CCodec_GifModule::GetAvailInput(void* pContext,
- uint8_t** avial_buf_ptr) {
- FXGIF_Context* p = (FXGIF_Context*)pContext;
- return _gif_get_avail_input(p->gif_ptr, avial_buf_ptr);
-}
-void CCodec_GifModule::Input(void* pContext,
- const uint8_t* src_buf,
- FX_DWORD src_size) {
- FXGIF_Context* p = (FXGIF_Context*)pContext;
- _gif_input_buffer(p->gif_ptr, (uint8_t*)src_buf, src_size);
-}
+// Copyright 2014 PDFium Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. + +// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com + +#include "core/include/fxcodec/fx_codec.h" +#include "core/include/fxge/fx_dib.h" +#include "codec_int.h" +#include "core/src/fxcodec/lgif/fx_gif.h" +struct FXGIF_Context { + gif_decompress_struct_p gif_ptr; + void* parent_ptr; + void* child_ptr; + + void* (*m_AllocFunc)(unsigned int); + void (*m_FreeFunc)(void*); +}; +extern "C" { +static void* _gif_alloc_func(unsigned int size) { + return FX_Alloc(char, size); +} +static void _gif_free_func(void* p) { + if (p != NULL) { + FX_Free(p); + } +} +}; +static void _gif_error_data(gif_decompress_struct_p gif_ptr, + const FX_CHAR* err_msg) { + FXSYS_strncpy((char*)gif_ptr->err_ptr, err_msg, GIF_MAX_ERROR_SIZE - 1); + longjmp(gif_ptr->jmpbuf, 1); +} +static uint8_t* _gif_ask_buf_for_pal(gif_decompress_struct_p gif_ptr, + int32_t pal_size) { + FXGIF_Context* p = (FXGIF_Context*)gif_ptr->context_ptr; + CCodec_GifModule* pModule = (CCodec_GifModule*)p->parent_ptr; + return pModule->AskLocalPaletteBufCallback( + p->child_ptr, _gif_get_frame_num(gif_ptr), pal_size); +} +static void _gif_record_current_position(gif_decompress_struct_p gif_ptr, + FX_DWORD* cur_pos_ptr) { + FXGIF_Context* p = (FXGIF_Context*)gif_ptr->context_ptr; + CCodec_GifModule* pModule = (CCodec_GifModule*)p->parent_ptr; + pModule->RecordCurrentPositionCallback(p->child_ptr, *cur_pos_ptr); +} +static void _gif_read_scanline(gif_decompress_struct_p gif_ptr, + int32_t row_num, + uint8_t* row_buf) { + FXGIF_Context* p = (FXGIF_Context*)gif_ptr->context_ptr; + CCodec_GifModule* pModule = (CCodec_GifModule*)p->parent_ptr; + pModule->ReadScanlineCallback(p->child_ptr, row_num, row_buf); +} +static FX_BOOL _gif_get_record_position(gif_decompress_struct_p gif_ptr, + FX_DWORD cur_pos, + int32_t left, + int32_t top, + int32_t width, + int32_t height, + int32_t pal_num, + void* pal_ptr, + int32_t delay_time, + FX_BOOL user_input, + int32_t trans_index, + int32_t disposal_method, + FX_BOOL interlace) { + FXGIF_Context* p = (FXGIF_Context*)gif_ptr->context_ptr; + CCodec_GifModule* pModule = (CCodec_GifModule*)p->parent_ptr; + return pModule->InputRecordPositionBufCallback( + p->child_ptr, cur_pos, FX_RECT(left, top, left + width, top + height), + pal_num, pal_ptr, delay_time, user_input, trans_index, disposal_method, + interlace); +} +void* CCodec_GifModule::Start(void* pModule) { + FXGIF_Context* p = (FXGIF_Context*)FX_Alloc(uint8_t, sizeof(FXGIF_Context)); + if (p == NULL) { + return NULL; + } + FXSYS_memset(p, 0, sizeof(FXGIF_Context)); + p->m_AllocFunc = _gif_alloc_func; + p->m_FreeFunc = _gif_free_func; + p->gif_ptr = NULL; + p->parent_ptr = (void*)this; + p->child_ptr = pModule; + p->gif_ptr = _gif_create_decompress(); + if (p->gif_ptr == NULL) { + FX_Free(p); + return NULL; + } + p->gif_ptr->context_ptr = (void*)p; + p->gif_ptr->err_ptr = m_szLastError; + p->gif_ptr->_gif_error_fn = _gif_error_data; + p->gif_ptr->_gif_ask_buf_for_pal_fn = _gif_ask_buf_for_pal; + p->gif_ptr->_gif_record_current_position_fn = _gif_record_current_position; + p->gif_ptr->_gif_get_row_fn = _gif_read_scanline; + p->gif_ptr->_gif_get_record_position_fn = _gif_get_record_position; + return p; +} +void CCodec_GifModule::Finish(void* pContext) { + FXGIF_Context* p = (FXGIF_Context*)pContext; + if (p != NULL) { + _gif_destroy_decompress(&p->gif_ptr); + p->m_FreeFunc(p); + } +} +int32_t CCodec_GifModule::ReadHeader(void* pContext, + int* width, + int* height, + int* pal_num, + void** pal_pp, + int* bg_index, + CFX_DIBAttribute* pAttribute) { + FXGIF_Context* p = (FXGIF_Context*)pContext; + if (setjmp(p->gif_ptr->jmpbuf)) { + return 0; + } + int32_t ret = _gif_read_header(p->gif_ptr); + if (ret != 1) { + return ret; + } + if (pAttribute) { + } + *width = p->gif_ptr->width; + *height = p->gif_ptr->height; + *pal_num = p->gif_ptr->global_pal_num; + *pal_pp = p->gif_ptr->global_pal_ptr; + *bg_index = p->gif_ptr->bc_index; + return 1; +} +int32_t CCodec_GifModule::LoadFrameInfo(void* pContext, int* frame_num) { + FXGIF_Context* p = (FXGIF_Context*)pContext; + if (setjmp(p->gif_ptr->jmpbuf)) { + return 0; + } + int32_t ret = _gif_get_frame(p->gif_ptr); + if (ret != 1) { + return ret; + } + *frame_num = _gif_get_frame_num(p->gif_ptr); + return 1; +} +int32_t CCodec_GifModule::LoadFrame(void* pContext, + int frame_num, + CFX_DIBAttribute* pAttribute) { + FXGIF_Context* p = (FXGIF_Context*)pContext; + if (setjmp(p->gif_ptr->jmpbuf)) { + return 0; + } + int32_t ret = _gif_load_frame(p->gif_ptr, frame_num); + if (ret == 1) { + if (pAttribute) { + pAttribute->m_nGifLeft = + p->gif_ptr->img_ptr_arr_ptr->GetAt(frame_num)->image_info_ptr->left; + pAttribute->m_nGifTop = + p->gif_ptr->img_ptr_arr_ptr->GetAt(frame_num)->image_info_ptr->top; + pAttribute->m_fAspectRatio = p->gif_ptr->pixel_aspect; + if (p->gif_ptr->cmt_data_ptr) { + const uint8_t* buf = + (const uint8_t*)p->gif_ptr->cmt_data_ptr->GetBuffer(0); + FX_DWORD len = p->gif_ptr->cmt_data_ptr->GetLength(); + if (len > 21) { + uint8_t size = *buf++; + if (size) { + pAttribute->m_strAuthor = CFX_ByteString(buf, size); + } else { + pAttribute->m_strAuthor.Empty(); + } + buf += size; + size = *buf++; + if (size == 20) { + FXSYS_memcpy(pAttribute->m_strTime, buf, size); + } + } + } + } + } + return ret; +} +FX_DWORD CCodec_GifModule::GetAvailInput(void* pContext, + uint8_t** avial_buf_ptr) { + FXGIF_Context* p = (FXGIF_Context*)pContext; + return _gif_get_avail_input(p->gif_ptr, avial_buf_ptr); +} +void CCodec_GifModule::Input(void* pContext, + const uint8_t* src_buf, + FX_DWORD src_size) { + FXGIF_Context* p = (FXGIF_Context*)pContext; + _gif_input_buffer(p->gif_ptr, (uint8_t*)src_buf, src_size); +} diff --git a/core/src/fxcodec/codec/fx_codec_png.cpp b/core/src/fxcodec/codec/fx_codec_png.cpp index 9e08473339..32b0d3d48f 100644 --- a/core/src/fxcodec/codec/fx_codec_png.cpp +++ b/core/src/fxcodec/codec/fx_codec_png.cpp @@ -1,256 +1,256 @@ -// Copyright 2014 PDFium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
-
-#include <algorithm>
-
-#include "core/include/fxcodec/fx_codec.h"
-#include "core/include/fxge/fx_dib.h"
-#include "codec_int.h"
-
-extern "C" {
-#undef FAR
-#include "third_party/libpng16/png.h"
-}
-
-static void _png_error_data(png_structp png_ptr, png_const_charp error_msg) {
- if (png_get_error_ptr(png_ptr)) {
- FXSYS_strncpy((char*)png_get_error_ptr(png_ptr), error_msg,
- PNG_ERROR_SIZE - 1);
- }
- longjmp(png_jmpbuf(png_ptr), 1);
-}
-static void _png_warning_data(png_structp png_ptr, png_const_charp error_msg) {}
-static void _png_load_bmp_attribute(png_structp png_ptr,
- png_infop info_ptr,
- CFX_DIBAttribute* pAttribute) {
- if (pAttribute) {
-#if defined(PNG_pHYs_SUPPORTED)
- pAttribute->m_nXDPI = png_get_x_pixels_per_meter(png_ptr, info_ptr);
- pAttribute->m_nYDPI = png_get_y_pixels_per_meter(png_ptr, info_ptr);
- png_uint_32 res_x, res_y;
- int unit_type;
- png_get_pHYs(png_ptr, info_ptr, &res_x, &res_y, &unit_type);
- switch (unit_type) {
- case PNG_RESOLUTION_METER:
- pAttribute->m_wDPIUnit = FXCODEC_RESUNIT_METER;
- break;
- default:
- pAttribute->m_wDPIUnit = FXCODEC_RESUNIT_NONE;
- }
-#endif
-#if defined(PNG_iCCP_SUPPORTED)
- png_charp icc_name;
- png_bytep icc_profile;
- png_uint_32 icc_proflen;
- int compress_type;
- png_get_iCCP(png_ptr, info_ptr, &icc_name, &compress_type, &icc_profile,
- &icc_proflen);
-#endif
- int bTime = 0;
-#if defined(PNG_tIME_SUPPORTED)
- png_timep t = NULL;
- png_get_tIME(png_ptr, info_ptr, &t);
- if (t) {
- FXSYS_memset(pAttribute->m_strTime, 0, sizeof(pAttribute->m_strTime));
- FXSYS_snprintf((FX_CHAR*)pAttribute->m_strTime,
- sizeof(pAttribute->m_strTime), "%4d:%2d:%2d %2d:%2d:%2d",
- t->year, t->month, t->day, t->hour, t->minute, t->second);
- pAttribute->m_strTime[sizeof(pAttribute->m_strTime) - 1] = 0;
- bTime = 1;
- }
-#endif
-#if defined(PNG_TEXT_SUPPORTED)
- int i;
- FX_STRSIZE len;
- const FX_CHAR* buf;
- int num_text;
- png_textp text = NULL;
- png_get_text(png_ptr, info_ptr, &text, &num_text);
- for (i = 0; i < num_text; i++) {
- len = FXSYS_strlen(text[i].key);
- buf = "Time";
- if (!FXSYS_memcmp(buf, text[i].key, std::min(len, FXSYS_strlen(buf)))) {
- if (!bTime) {
- FXSYS_memset(pAttribute->m_strTime, 0, sizeof(pAttribute->m_strTime));
- FXSYS_memcpy(
- pAttribute->m_strTime, text[i].text,
- std::min(sizeof(pAttribute->m_strTime) - 1, text[i].text_length));
- }
- } else {
- buf = "Author";
- if (!FXSYS_memcmp(buf, text[i].key, std::min(len, FXSYS_strlen(buf)))) {
- pAttribute->m_strAuthor.Empty();
- pAttribute->m_strAuthor.Load((uint8_t*)text[i].text,
- (FX_STRSIZE)text[i].text_length);
- }
- }
- }
-#endif
- }
-}
-struct FXPNG_Context {
- png_structp png_ptr;
- png_infop info_ptr;
- void* parent_ptr;
- void* child_ptr;
-
- void* (*m_AllocFunc)(unsigned int);
- void (*m_FreeFunc)(void*);
-};
-extern "C" {
-static void* _png_alloc_func(unsigned int size) {
- return FX_Alloc(char, size);
-}
-static void _png_free_func(void* p) {
- if (p != NULL) {
- FX_Free(p);
- }
-}
-};
-static void _png_get_header_func(png_structp png_ptr, png_infop info_ptr) {
- FXPNG_Context* p = (FXPNG_Context*)png_get_progressive_ptr(png_ptr);
- if (p == NULL) {
- return;
- }
- CCodec_PngModule* pModule = (CCodec_PngModule*)p->parent_ptr;
- if (pModule == NULL) {
- return;
- }
- png_uint_32 width = 0, height = 0;
- int bpc = 0, color_type = 0, color_type1 = 0, pass = 0;
- double gamma = 1.0;
- png_get_IHDR(png_ptr, info_ptr, &width, &height, &bpc, &color_type, NULL,
- NULL, NULL);
- color_type1 = color_type;
- if (bpc > 8) {
- png_set_strip_16(png_ptr);
- } else if (bpc < 8) {
- png_set_expand_gray_1_2_4_to_8(png_ptr);
- }
- bpc = 8;
- if (color_type == PNG_COLOR_TYPE_PALETTE) {
- png_set_palette_to_rgb(png_ptr);
- }
- pass = png_set_interlace_handling(png_ptr);
- if (!pModule->ReadHeaderCallback(p->child_ptr, width, height, bpc, pass,
- &color_type, &gamma)) {
- png_error(p->png_ptr, "Read Header Callback Error");
- }
- int intent;
- if (png_get_sRGB(png_ptr, info_ptr, &intent)) {
- png_set_gamma(png_ptr, gamma, 0.45455);
- } else {
- double image_gamma;
- if (png_get_gAMA(png_ptr, info_ptr, &image_gamma)) {
- png_set_gamma(png_ptr, gamma, image_gamma);
- } else {
- png_set_gamma(png_ptr, gamma, 0.45455);
- }
- }
- switch (color_type) {
- case PNG_COLOR_TYPE_GRAY:
- case PNG_COLOR_TYPE_GRAY_ALPHA: {
- if (color_type1 & PNG_COLOR_MASK_COLOR) {
- png_set_rgb_to_gray(png_ptr, 1, 0.299, 0.587);
- }
- } break;
- case PNG_COLOR_TYPE_PALETTE:
- if (color_type1 != PNG_COLOR_TYPE_PALETTE) {
- png_error(p->png_ptr, "Not Support Output Palette Now");
- }
- case PNG_COLOR_TYPE_RGB:
- case PNG_COLOR_TYPE_RGB_ALPHA:
- if (!(color_type1 & PNG_COLOR_MASK_COLOR)) {
- png_set_gray_to_rgb(png_ptr);
- }
- png_set_bgr(png_ptr);
- break;
- }
- if (!(color_type & PNG_COLOR_MASK_ALPHA)) {
- png_set_strip_alpha(png_ptr);
- }
- if (color_type & PNG_COLOR_MASK_ALPHA &&
- !(color_type1 & PNG_COLOR_MASK_ALPHA)) {
- png_set_filler(png_ptr, 0xff, PNG_FILLER_AFTER);
- }
- png_read_update_info(png_ptr, info_ptr);
-}
-static void _png_get_end_func(png_structp png_ptr, png_infop info_ptr) {}
-static void _png_get_row_func(png_structp png_ptr,
- png_bytep new_row,
- png_uint_32 row_num,
- int pass) {
- FXPNG_Context* p = (FXPNG_Context*)png_get_progressive_ptr(png_ptr);
- if (p == NULL) {
- return;
- }
- CCodec_PngModule* pModule = (CCodec_PngModule*)p->parent_ptr;
- uint8_t* src_buf = NULL;
- if (!pModule->AskScanlineBufCallback(p->child_ptr, row_num, src_buf)) {
- png_error(png_ptr, "Ask Scanline buffer Callback Error");
- }
- if (src_buf != NULL) {
- png_progressive_combine_row(png_ptr, src_buf, new_row);
- }
- pModule->FillScanlineBufCompletedCallback(p->child_ptr, pass, row_num);
-}
-void* CCodec_PngModule::Start(void* pModule) {
- FXPNG_Context* p = (FXPNG_Context*)FX_Alloc(uint8_t, sizeof(FXPNG_Context));
- if (p == NULL) {
- return NULL;
- }
- p->m_AllocFunc = _png_alloc_func;
- p->m_FreeFunc = _png_free_func;
- p->png_ptr = NULL;
- p->info_ptr = NULL;
- p->parent_ptr = (void*)this;
- p->child_ptr = pModule;
- p->png_ptr = png_create_read_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
- if (p->png_ptr == NULL) {
- FX_Free(p);
- return NULL;
- }
- p->info_ptr = png_create_info_struct(p->png_ptr);
- if (p->info_ptr == NULL) {
- png_destroy_read_struct(&(p->png_ptr), (png_infopp)NULL, (png_infopp)NULL);
- FX_Free(p);
- return NULL;
- }
- if (setjmp(png_jmpbuf(p->png_ptr))) {
- if (p != NULL) {
- png_destroy_read_struct(&(p->png_ptr), &(p->info_ptr), (png_infopp)NULL);
- FX_Free(p);
- }
- return NULL;
- }
- png_set_progressive_read_fn(p->png_ptr, p, _png_get_header_func,
- _png_get_row_func, _png_get_end_func);
- png_set_error_fn(p->png_ptr, m_szLastError, (png_error_ptr)_png_error_data,
- (png_error_ptr)_png_warning_data);
- return p;
-}
-void CCodec_PngModule::Finish(void* pContext) {
- FXPNG_Context* p = (FXPNG_Context*)pContext;
- if (p != NULL) {
- png_destroy_read_struct(&(p->png_ptr), &(p->info_ptr), (png_infopp)NULL);
- p->m_FreeFunc(p);
- }
-}
-FX_BOOL CCodec_PngModule::Input(void* pContext,
- const uint8_t* src_buf,
- FX_DWORD src_size,
- CFX_DIBAttribute* pAttribute) {
- FXPNG_Context* p = (FXPNG_Context*)pContext;
- if (setjmp(png_jmpbuf(p->png_ptr))) {
- if (pAttribute &&
- 0 == FXSYS_strcmp(m_szLastError, "Read Header Callback Error")) {
- _png_load_bmp_attribute(p->png_ptr, p->info_ptr, pAttribute);
- }
- return FALSE;
- }
- png_process_data(p->png_ptr, p->info_ptr, (uint8_t*)src_buf, src_size);
- return TRUE;
-}
+// Copyright 2014 PDFium Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. + +// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com + +#include <algorithm> + +#include "core/include/fxcodec/fx_codec.h" +#include "core/include/fxge/fx_dib.h" +#include "codec_int.h" + +extern "C" { +#undef FAR +#include "third_party/libpng16/png.h" +} + +static void _png_error_data(png_structp png_ptr, png_const_charp error_msg) { + if (png_get_error_ptr(png_ptr)) { + FXSYS_strncpy((char*)png_get_error_ptr(png_ptr), error_msg, + PNG_ERROR_SIZE - 1); + } + longjmp(png_jmpbuf(png_ptr), 1); +} +static void _png_warning_data(png_structp png_ptr, png_const_charp error_msg) {} +static void _png_load_bmp_attribute(png_structp png_ptr, + png_infop info_ptr, + CFX_DIBAttribute* pAttribute) { + if (pAttribute) { +#if defined(PNG_pHYs_SUPPORTED) + pAttribute->m_nXDPI = png_get_x_pixels_per_meter(png_ptr, info_ptr); + pAttribute->m_nYDPI = png_get_y_pixels_per_meter(png_ptr, info_ptr); + png_uint_32 res_x, res_y; + int unit_type; + png_get_pHYs(png_ptr, info_ptr, &res_x, &res_y, &unit_type); + switch (unit_type) { + case PNG_RESOLUTION_METER: + pAttribute->m_wDPIUnit = FXCODEC_RESUNIT_METER; + break; + default: + pAttribute->m_wDPIUnit = FXCODEC_RESUNIT_NONE; + } +#endif +#if defined(PNG_iCCP_SUPPORTED) + png_charp icc_name; + png_bytep icc_profile; + png_uint_32 icc_proflen; + int compress_type; + png_get_iCCP(png_ptr, info_ptr, &icc_name, &compress_type, &icc_profile, + &icc_proflen); +#endif + int bTime = 0; +#if defined(PNG_tIME_SUPPORTED) + png_timep t = NULL; + png_get_tIME(png_ptr, info_ptr, &t); + if (t) { + FXSYS_memset(pAttribute->m_strTime, 0, sizeof(pAttribute->m_strTime)); + FXSYS_snprintf((FX_CHAR*)pAttribute->m_strTime, + sizeof(pAttribute->m_strTime), "%4d:%2d:%2d %2d:%2d:%2d", + t->year, t->month, t->day, t->hour, t->minute, t->second); + pAttribute->m_strTime[sizeof(pAttribute->m_strTime) - 1] = 0; + bTime = 1; + } +#endif +#if defined(PNG_TEXT_SUPPORTED) + int i; + FX_STRSIZE len; + const FX_CHAR* buf; + int num_text; + png_textp text = NULL; + png_get_text(png_ptr, info_ptr, &text, &num_text); + for (i = 0; i < num_text; i++) { + len = FXSYS_strlen(text[i].key); + buf = "Time"; + if (!FXSYS_memcmp(buf, text[i].key, std::min(len, FXSYS_strlen(buf)))) { + if (!bTime) { + FXSYS_memset(pAttribute->m_strTime, 0, sizeof(pAttribute->m_strTime)); + FXSYS_memcpy( + pAttribute->m_strTime, text[i].text, + std::min(sizeof(pAttribute->m_strTime) - 1, text[i].text_length)); + } + } else { + buf = "Author"; + if (!FXSYS_memcmp(buf, text[i].key, std::min(len, FXSYS_strlen(buf)))) { + pAttribute->m_strAuthor.Empty(); + pAttribute->m_strAuthor.Load((uint8_t*)text[i].text, + (FX_STRSIZE)text[i].text_length); + } + } + } +#endif + } +} +struct FXPNG_Context { + png_structp png_ptr; + png_infop info_ptr; + void* parent_ptr; + void* child_ptr; + + void* (*m_AllocFunc)(unsigned int); + void (*m_FreeFunc)(void*); +}; +extern "C" { +static void* _png_alloc_func(unsigned int size) { + return FX_Alloc(char, size); +} +static void _png_free_func(void* p) { + if (p != NULL) { + FX_Free(p); + } +} +}; +static void _png_get_header_func(png_structp png_ptr, png_infop info_ptr) { + FXPNG_Context* p = (FXPNG_Context*)png_get_progressive_ptr(png_ptr); + if (p == NULL) { + return; + } + CCodec_PngModule* pModule = (CCodec_PngModule*)p->parent_ptr; + if (pModule == NULL) { + return; + } + png_uint_32 width = 0, height = 0; + int bpc = 0, color_type = 0, color_type1 = 0, pass = 0; + double gamma = 1.0; + png_get_IHDR(png_ptr, info_ptr, &width, &height, &bpc, &color_type, NULL, + NULL, NULL); + color_type1 = color_type; + if (bpc > 8) { + png_set_strip_16(png_ptr); + } else if (bpc < 8) { + png_set_expand_gray_1_2_4_to_8(png_ptr); + } + bpc = 8; + if (color_type == PNG_COLOR_TYPE_PALETTE) { + png_set_palette_to_rgb(png_ptr); + } + pass = png_set_interlace_handling(png_ptr); + if (!pModule->ReadHeaderCallback(p->child_ptr, width, height, bpc, pass, + &color_type, &gamma)) { + png_error(p->png_ptr, "Read Header Callback Error"); + } + int intent; + if (png_get_sRGB(png_ptr, info_ptr, &intent)) { + png_set_gamma(png_ptr, gamma, 0.45455); + } else { + double image_gamma; + if (png_get_gAMA(png_ptr, info_ptr, &image_gamma)) { + png_set_gamma(png_ptr, gamma, image_gamma); + } else { + png_set_gamma(png_ptr, gamma, 0.45455); + } + } + switch (color_type) { + case PNG_COLOR_TYPE_GRAY: + case PNG_COLOR_TYPE_GRAY_ALPHA: { + if (color_type1 & PNG_COLOR_MASK_COLOR) { + png_set_rgb_to_gray(png_ptr, 1, 0.299, 0.587); + } + } break; + case PNG_COLOR_TYPE_PALETTE: + if (color_type1 != PNG_COLOR_TYPE_PALETTE) { + png_error(p->png_ptr, "Not Support Output Palette Now"); + } + case PNG_COLOR_TYPE_RGB: + case PNG_COLOR_TYPE_RGB_ALPHA: + if (!(color_type1 & PNG_COLOR_MASK_COLOR)) { + png_set_gray_to_rgb(png_ptr); + } + png_set_bgr(png_ptr); + break; + } + if (!(color_type & PNG_COLOR_MASK_ALPHA)) { + png_set_strip_alpha(png_ptr); + } + if (color_type & PNG_COLOR_MASK_ALPHA && + !(color_type1 & PNG_COLOR_MASK_ALPHA)) { + png_set_filler(png_ptr, 0xff, PNG_FILLER_AFTER); + } + png_read_update_info(png_ptr, info_ptr); +} +static void _png_get_end_func(png_structp png_ptr, png_infop info_ptr) {} +static void _png_get_row_func(png_structp png_ptr, + png_bytep new_row, + png_uint_32 row_num, + int pass) { + FXPNG_Context* p = (FXPNG_Context*)png_get_progressive_ptr(png_ptr); + if (p == NULL) { + return; + } + CCodec_PngModule* pModule = (CCodec_PngModule*)p->parent_ptr; + uint8_t* src_buf = NULL; + if (!pModule->AskScanlineBufCallback(p->child_ptr, row_num, src_buf)) { + png_error(png_ptr, "Ask Scanline buffer Callback Error"); + } + if (src_buf != NULL) { + png_progressive_combine_row(png_ptr, src_buf, new_row); + } + pModule->FillScanlineBufCompletedCallback(p->child_ptr, pass, row_num); +} +void* CCodec_PngModule::Start(void* pModule) { + FXPNG_Context* p = (FXPNG_Context*)FX_Alloc(uint8_t, sizeof(FXPNG_Context)); + if (p == NULL) { + return NULL; + } + p->m_AllocFunc = _png_alloc_func; + p->m_FreeFunc = _png_free_func; + p->png_ptr = NULL; + p->info_ptr = NULL; + p->parent_ptr = (void*)this; + p->child_ptr = pModule; + p->png_ptr = png_create_read_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL); + if (p->png_ptr == NULL) { + FX_Free(p); + return NULL; + } + p->info_ptr = png_create_info_struct(p->png_ptr); + if (p->info_ptr == NULL) { + png_destroy_read_struct(&(p->png_ptr), (png_infopp)NULL, (png_infopp)NULL); + FX_Free(p); + return NULL; + } + if (setjmp(png_jmpbuf(p->png_ptr))) { + if (p != NULL) { + png_destroy_read_struct(&(p->png_ptr), &(p->info_ptr), (png_infopp)NULL); + FX_Free(p); + } + return NULL; + } + png_set_progressive_read_fn(p->png_ptr, p, _png_get_header_func, + _png_get_row_func, _png_get_end_func); + png_set_error_fn(p->png_ptr, m_szLastError, (png_error_ptr)_png_error_data, + (png_error_ptr)_png_warning_data); + return p; +} +void CCodec_PngModule::Finish(void* pContext) { + FXPNG_Context* p = (FXPNG_Context*)pContext; + if (p != NULL) { + png_destroy_read_struct(&(p->png_ptr), &(p->info_ptr), (png_infopp)NULL); + p->m_FreeFunc(p); + } +} +FX_BOOL CCodec_PngModule::Input(void* pContext, + const uint8_t* src_buf, + FX_DWORD src_size, + CFX_DIBAttribute* pAttribute) { + FXPNG_Context* p = (FXPNG_Context*)pContext; + if (setjmp(png_jmpbuf(p->png_ptr))) { + if (pAttribute && + 0 == FXSYS_strcmp(m_szLastError, "Read Header Callback Error")) { + _png_load_bmp_attribute(p->png_ptr, p->info_ptr, pAttribute); + } + return FALSE; + } + png_process_data(p->png_ptr, p->info_ptr, (uint8_t*)src_buf, src_size); + return TRUE; +} diff --git a/core/src/fxcodec/codec/fx_codec_progress.cpp b/core/src/fxcodec/codec/fx_codec_progress.cpp index 383e3ed93d..5dbc19b4b6 100644 --- a/core/src/fxcodec/codec/fx_codec_progress.cpp +++ b/core/src/fxcodec/codec/fx_codec_progress.cpp @@ -1,2354 +1,2354 @@ -// Copyright 2014 PDFium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
-
-#include "core/include/fxge/fx_dib.h"
-#include "core/include/fxcodec/fx_codec.h"
-#include "fx_codec_progress.h"
-void CFXCODEC_WeightTable::Calc(int dest_len,
- int dest_min,
- int dest_max,
- int src_len,
- int src_min,
- int src_max,
- FX_BOOL bInterpol) {
- if (m_pWeightTables) {
- FX_Free(m_pWeightTables);
- }
- double scale, base;
- scale = FXSYS_Div((FX_FLOAT)(src_len), (FX_FLOAT)(dest_len));
- if (dest_len < 0) {
- base = (FX_FLOAT)(src_len);
- } else {
- base = 0.0f;
- }
- m_ItemSize =
- (int)(sizeof(int) * 2 +
- sizeof(int) * (FXSYS_ceil(FXSYS_fabs((FX_FLOAT)scale)) + 1));
- m_DestMin = dest_min;
- m_pWeightTables = FX_Alloc(uint8_t, (dest_max - dest_min) * m_ItemSize + 4);
- if (m_pWeightTables == NULL) {
- return;
- }
- if (FXSYS_fabs((FX_FLOAT)scale) < 1.0f) {
- for (int dest_pixel = dest_min; dest_pixel < dest_max; dest_pixel++) {
- PixelWeight& pixel_weights = *GetPixelWeight(dest_pixel);
- double src_pos = dest_pixel * scale + scale / 2 + base;
- if (bInterpol) {
- pixel_weights.m_SrcStart =
- (int)FXSYS_floor((FX_FLOAT)src_pos - 1.0f / 2);
- pixel_weights.m_SrcEnd = (int)FXSYS_floor((FX_FLOAT)src_pos + 1.0f / 2);
- if (pixel_weights.m_SrcStart < src_min) {
- pixel_weights.m_SrcStart = src_min;
- }
- if (pixel_weights.m_SrcEnd >= src_max) {
- pixel_weights.m_SrcEnd = src_max - 1;
- }
- if (pixel_weights.m_SrcStart == pixel_weights.m_SrcEnd) {
- pixel_weights.m_Weights[0] = 65536;
- } else {
- pixel_weights.m_Weights[1] = FXSYS_round(
- (FX_FLOAT)(src_pos - pixel_weights.m_SrcStart - 1.0f / 2) *
- 65536);
- pixel_weights.m_Weights[0] = 65536 - pixel_weights.m_Weights[1];
- }
- } else {
- pixel_weights.m_SrcStart = pixel_weights.m_SrcEnd =
- (int)FXSYS_floor((FX_FLOAT)src_pos);
- pixel_weights.m_Weights[0] = 65536;
- }
- }
- return;
- }
- for (int dest_pixel = dest_min; dest_pixel < dest_max; dest_pixel++) {
- PixelWeight& pixel_weights = *GetPixelWeight(dest_pixel);
- double src_start = dest_pixel * scale + base;
- double src_end = src_start + scale;
- int start_i, end_i;
- if (src_start < src_end) {
- start_i = (int)FXSYS_floor((FX_FLOAT)src_start);
- end_i = (int)FXSYS_ceil((FX_FLOAT)src_end);
- } else {
- start_i = (int)FXSYS_floor((FX_FLOAT)src_end);
- end_i = (int)FXSYS_ceil((FX_FLOAT)src_start);
- }
- if (start_i < src_min) {
- start_i = src_min;
- }
- if (end_i >= src_max) {
- end_i = src_max - 1;
- }
- if (start_i > end_i) {
- pixel_weights.m_SrcStart = start_i;
- pixel_weights.m_SrcEnd = start_i;
- continue;
- }
- pixel_weights.m_SrcStart = start_i;
- pixel_weights.m_SrcEnd = end_i;
- for (int j = start_i; j <= end_i; j++) {
- double dest_start = FXSYS_Div((FX_FLOAT)(j)-base, scale);
- double dest_end = FXSYS_Div((FX_FLOAT)(j + 1) - base, scale);
- if (dest_start > dest_end) {
- double temp = dest_start;
- dest_start = dest_end;
- dest_end = temp;
- }
- double area_start = dest_start > (FX_FLOAT)(dest_pixel)
- ? dest_start
- : (FX_FLOAT)(dest_pixel);
- double area_end = dest_end > (FX_FLOAT)(dest_pixel + 1)
- ? (FX_FLOAT)(dest_pixel + 1)
- : dest_end;
- double weight = area_start >= area_end ? 0.0f : area_end - area_start;
- if (weight == 0 && j == end_i) {
- pixel_weights.m_SrcEnd--;
- break;
- }
- pixel_weights.m_Weights[j - start_i] =
- FXSYS_round((FX_FLOAT)(weight * 65536));
- }
- }
-}
-void CFXCODEC_HorzTable::Calc(int dest_len, int src_len, FX_BOOL bInterpol) {
- if (m_pWeightTables) {
- FX_Free(m_pWeightTables);
- }
- double scale = (double)dest_len / (double)src_len;
- m_ItemSize = sizeof(int) * 4;
- int size = dest_len * m_ItemSize + 4;
- m_pWeightTables = FX_Alloc(uint8_t, size);
- if (m_pWeightTables == NULL) {
- return;
- }
- FXSYS_memset(m_pWeightTables, 0, size);
- if (scale > 1) {
- int pre_des_col = 0;
- for (int src_col = 0; src_col < src_len; src_col++) {
- double des_col_f = src_col * scale;
- int des_col = FXSYS_round((FX_FLOAT)des_col_f);
- PixelWeight* pWeight =
- (PixelWeight*)(m_pWeightTables + des_col * m_ItemSize);
- pWeight->m_SrcStart = pWeight->m_SrcEnd = src_col;
- pWeight->m_Weights[0] = 65536;
- pWeight->m_Weights[1] = 0;
- if (src_col == src_len - 1 && des_col < dest_len - 1) {
- for (int des_col_index = pre_des_col + 1; des_col_index < dest_len;
- des_col_index++) {
- pWeight =
- (PixelWeight*)(m_pWeightTables + des_col_index * m_ItemSize);
- pWeight->m_SrcStart = pWeight->m_SrcEnd = src_col;
- pWeight->m_Weights[0] = 65536;
- pWeight->m_Weights[1] = 0;
- }
- return;
- }
- int des_col_len = des_col - pre_des_col;
- for (int des_col_index = pre_des_col + 1; des_col_index < des_col;
- des_col_index++) {
- pWeight = (PixelWeight*)(m_pWeightTables + des_col_index * m_ItemSize);
- pWeight->m_SrcStart = src_col - 1;
- pWeight->m_SrcEnd = src_col;
- pWeight->m_Weights[0] =
- bInterpol ? FXSYS_round((FX_FLOAT)(
- ((FX_FLOAT)des_col - (FX_FLOAT)des_col_index) /
- (FX_FLOAT)des_col_len * 65536))
- : 65536;
- pWeight->m_Weights[1] = 65536 - pWeight->m_Weights[0];
- }
- pre_des_col = des_col;
- }
- return;
- }
- for (int des_col = 0; des_col < dest_len; des_col++) {
- double src_col_f = des_col / scale;
- int src_col = FXSYS_round((FX_FLOAT)src_col_f);
- PixelWeight* pWeight =
- (PixelWeight*)(m_pWeightTables + des_col * m_ItemSize);
- pWeight->m_SrcStart = pWeight->m_SrcEnd = src_col;
- pWeight->m_Weights[0] = 65536;
- pWeight->m_Weights[1] = 0;
- }
-}
-void CFXCODEC_VertTable::Calc(int dest_len, int src_len) {
- if (m_pWeightTables) {
- FX_Free(m_pWeightTables);
- }
- double scale = (double)dest_len / (double)src_len;
- m_ItemSize = sizeof(int) * 4;
- int size = dest_len * m_ItemSize + 4;
- m_pWeightTables = FX_Alloc(uint8_t, size);
- if (m_pWeightTables == NULL) {
- return;
- }
- FXSYS_memset(m_pWeightTables, 0, size);
- if (scale > 1) {
- double step = 0.0;
- int src_row = 0;
- while (step < (double)dest_len) {
- int start_step = (int)step;
- step = scale * (++src_row);
- int end_step = (int)step;
- if (end_step >= dest_len) {
- end_step = dest_len;
- for (int des_row = start_step; des_row < end_step; des_row++) {
- PixelWeight* pWeight =
- (PixelWeight*)(m_pWeightTables + des_row * m_ItemSize);
- pWeight->m_SrcStart = start_step;
- pWeight->m_SrcEnd = start_step;
- pWeight->m_Weights[0] = 65536;
- pWeight->m_Weights[1] = 0;
- }
- return;
- }
- int length = end_step - start_step;
- {
- PixelWeight* pWeight =
- (PixelWeight*)(m_pWeightTables + start_step * m_ItemSize);
- pWeight->m_SrcStart = start_step;
- pWeight->m_SrcEnd = start_step;
- pWeight->m_Weights[0] = 65536;
- pWeight->m_Weights[1] = 0;
- }
- for (int des_row = start_step + 1; des_row < end_step; des_row++) {
- PixelWeight* pWeight =
- (PixelWeight*)(m_pWeightTables + des_row * m_ItemSize);
- pWeight->m_SrcStart = start_step;
- pWeight->m_SrcEnd = end_step;
- pWeight->m_Weights[0] = FXSYS_round((FX_FLOAT)(end_step - des_row) /
- (FX_FLOAT)length * 65536);
- pWeight->m_Weights[1] = 65536 - pWeight->m_Weights[0];
- }
- }
- } else {
- for (int des_row = 0; des_row < dest_len; des_row++) {
- PixelWeight* pWeight =
- (PixelWeight*)(m_pWeightTables + des_row * m_ItemSize);
- pWeight->m_SrcStart = des_row;
- pWeight->m_SrcEnd = des_row;
- pWeight->m_Weights[0] = 65536;
- pWeight->m_Weights[1] = 0;
- }
- }
-}
-CCodec_ProgressiveDecoder::CCodec_ProgressiveDecoder(
- CCodec_ModuleMgr* pCodecMgr) {
- m_pFile = NULL;
- m_pJpegContext = NULL;
- m_pPngContext = NULL;
- m_pGifContext = NULL;
- m_pBmpContext = NULL;
- m_pTiffContext = NULL;
- m_pCodecMgr = NULL;
- m_pSrcBuf = NULL;
- m_pDecodeBuf = NULL;
- m_pDeviceBitmap = NULL;
- m_pSrcPalette = NULL;
- m_pCodecMgr = pCodecMgr;
- m_offSet = 0;
- m_SrcSize = 0;
- m_ScanlineSize = 0;
- m_SrcWidth = m_SrcHeight = 0;
- m_SrcComponents = 0;
- m_SrcBPC = 0;
- m_SrcPassNumber = 0;
- m_clipBox = FX_RECT(0, 0, 0, 0);
- m_imagType = FXCODEC_IMAGE_UNKNOWN;
- m_status = FXCODEC_STATUS_DECODE_FINISH;
- m_TransMethod = -1;
- m_SrcRow = 0;
- m_SrcFormat = FXCodec_Invalid;
- m_bInterpol = TRUE;
- m_FrameNumber = 0;
- m_FrameCur = 0;
- m_SrcPaletteNumber = 0;
- m_GifPltNumber = 0;
- m_GifBgIndex = 0;
- m_pGifPalette = NULL;
- m_GifTransIndex = -1;
- m_GifFrameRect = FX_RECT(0, 0, 0, 0);
- m_BmpIsTopBottom = FALSE;
-}
-CCodec_ProgressiveDecoder::~CCodec_ProgressiveDecoder() {
- m_pFile = NULL;
- if (m_pJpegContext != NULL) {
- m_pCodecMgr->GetJpegModule()->Finish(m_pJpegContext);
- }
- if (m_pPngContext != NULL) {
- m_pCodecMgr->GetPngModule()->Finish(m_pPngContext);
- }
- if (m_pGifContext != NULL) {
- m_pCodecMgr->GetGifModule()->Finish(m_pGifContext);
- }
- if (m_pBmpContext != NULL) {
- m_pCodecMgr->GetBmpModule()->Finish(m_pBmpContext);
- }
- if (m_pTiffContext != NULL) {
- m_pCodecMgr->GetTiffModule()->DestroyDecoder(m_pTiffContext);
- }
- if (m_pSrcBuf != NULL) {
- FX_Free(m_pSrcBuf);
- }
- if (m_pDecodeBuf != NULL) {
- FX_Free(m_pDecodeBuf);
- }
- if (m_pSrcPalette != NULL) {
- FX_Free(m_pSrcPalette);
- }
-}
-FX_BOOL CCodec_ProgressiveDecoder::JpegReadMoreData(
- ICodec_JpegModule* pJpegModule,
- FXCODEC_STATUS& err_status) {
- FX_DWORD dwSize = (FX_DWORD)m_pFile->GetSize();
- if (dwSize <= m_offSet) {
- return FALSE;
- }
- dwSize = dwSize - m_offSet;
- FX_DWORD dwAvail = pJpegModule->GetAvailInput(m_pJpegContext, NULL);
- if (dwAvail == m_SrcSize) {
- if (dwSize > FXCODEC_BLOCK_SIZE) {
- dwSize = FXCODEC_BLOCK_SIZE;
- }
- m_SrcSize = (dwSize + dwAvail + FXCODEC_BLOCK_SIZE - 1) /
- FXCODEC_BLOCK_SIZE * FXCODEC_BLOCK_SIZE;
- m_pSrcBuf = FX_Realloc(uint8_t, m_pSrcBuf, m_SrcSize);
- if (!m_pSrcBuf) {
- err_status = FXCODEC_STATUS_ERR_MEMORY;
- return FALSE;
- }
- } else {
- FX_DWORD dwConsume = m_SrcSize - dwAvail;
- if (dwAvail) {
- FXSYS_memcpy(m_pSrcBuf, m_pSrcBuf + dwConsume, dwAvail);
- }
- if (dwSize > dwConsume) {
- dwSize = dwConsume;
- }
- }
- if (!m_pFile->ReadBlock(m_pSrcBuf + dwAvail, m_offSet, dwSize)) {
- err_status = FXCODEC_STATUS_ERR_READ;
- return FALSE;
- }
- m_offSet += dwSize;
- pJpegModule->Input(m_pJpegContext, m_pSrcBuf, dwSize + dwAvail);
- return TRUE;
-}
-FX_BOOL CCodec_ProgressiveDecoder::PngReadHeaderFunc(void* pModule,
- int width,
- int height,
- int bpc,
- int pass,
- int* color_type,
- double* gamma) {
- CCodec_ProgressiveDecoder* pCodec = (CCodec_ProgressiveDecoder*)pModule;
- if (pCodec->m_pDeviceBitmap == NULL) {
- pCodec->m_SrcWidth = width;
- pCodec->m_SrcHeight = height;
- pCodec->m_SrcBPC = bpc;
- pCodec->m_SrcPassNumber = pass;
- pCodec->m_SrcComponents =
- *color_type == 0 ? 1 : *color_type == 2
- ? 3
- : *color_type == 3
- ? 4
- : *color_type == 4
- ? 2
- : *color_type == 6 ? 4 : 0;
- pCodec->m_clipBox = FX_RECT(0, 0, width, height);
- return FALSE;
- }
- FXDIB_Format format = pCodec->m_pDeviceBitmap->GetFormat();
- switch (format) {
- case FXDIB_1bppMask:
- case FXDIB_1bppRgb:
- ASSERT(FALSE);
- return FALSE;
- case FXDIB_8bppMask:
- case FXDIB_8bppRgb:
- *color_type = 0;
- break;
- case FXDIB_Rgb:
- *color_type = 2;
- break;
- case FXDIB_Rgb32:
- case FXDIB_Argb:
- *color_type = 6;
- break;
- default:
- ASSERT(FALSE);
- return FALSE;
- }
- *gamma = FXCODEC_PNG_GAMMA;
- return TRUE;
-}
-FX_BOOL CCodec_ProgressiveDecoder::PngAskScanlineBufFunc(void* pModule,
- int line,
- uint8_t*& src_buf) {
- CCodec_ProgressiveDecoder* pCodec = (CCodec_ProgressiveDecoder*)pModule;
- CFX_DIBitmap* pDIBitmap = pCodec->m_pDeviceBitmap;
- ASSERT(pDIBitmap != NULL);
- if (pDIBitmap == NULL) {
- return FALSE;
- }
- if (line >= pCodec->m_clipBox.top && line < pCodec->m_clipBox.bottom) {
- double scale_y =
- (double)pCodec->m_sizeY / (double)pCodec->m_clipBox.Height();
- int32_t row =
- (int32_t)((line - pCodec->m_clipBox.top) * scale_y) + pCodec->m_startY;
- uint8_t* src_scan = (uint8_t*)pDIBitmap->GetScanline(row);
- uint8_t* des_scan = pCodec->m_pDecodeBuf;
- src_buf = pCodec->m_pDecodeBuf;
- int32_t src_Bpp = pDIBitmap->GetBPP() >> 3;
- int32_t des_Bpp = (pCodec->m_SrcFormat & 0xff) >> 3;
- int32_t src_left = pCodec->m_startX;
- int32_t des_left = pCodec->m_clipBox.left;
- src_scan += src_left * src_Bpp;
- des_scan += des_left * des_Bpp;
- for (int32_t src_col = 0; src_col < pCodec->m_sizeX; src_col++) {
- PixelWeight* pPixelWeights =
- pCodec->m_WeightHorzOO.GetPixelWeight(src_col);
- if (pPixelWeights->m_SrcStart != pPixelWeights->m_SrcEnd) {
- continue;
- }
- switch (pDIBitmap->GetFormat()) {
- case FXDIB_1bppMask:
- case FXDIB_1bppRgb:
- ASSERT(FALSE);
- return FALSE;
- case FXDIB_8bppMask:
- case FXDIB_8bppRgb: {
- if (pDIBitmap->GetPalette() != NULL) {
- return FALSE;
- }
- FX_DWORD des_g = 0;
- des_g += pPixelWeights->m_Weights[0] * src_scan[src_col];
- des_scan[pPixelWeights->m_SrcStart] = (uint8_t)(des_g >> 16);
- } break;
- case FXDIB_Rgb:
- case FXDIB_Rgb32: {
- FX_DWORD des_b = 0, des_g = 0, des_r = 0;
- const uint8_t* p = src_scan + src_col * src_Bpp;
- des_b += pPixelWeights->m_Weights[0] * (*p++);
- des_g += pPixelWeights->m_Weights[0] * (*p++);
- des_r += pPixelWeights->m_Weights[0] * (*p);
- uint8_t* pDes = &des_scan[pPixelWeights->m_SrcStart * des_Bpp];
- *pDes++ = (uint8_t)((des_b) >> 16);
- *pDes++ = (uint8_t)((des_g) >> 16);
- *pDes = (uint8_t)((des_r) >> 16);
- } break;
- case FXDIB_Argb: {
- FX_DWORD des_r = 0, des_g = 0, des_b = 0;
- const uint8_t* p = src_scan + src_col * src_Bpp;
- des_b += pPixelWeights->m_Weights[0] * (*p++);
- des_g += pPixelWeights->m_Weights[0] * (*p++);
- des_r += pPixelWeights->m_Weights[0] * (*p++);
- uint8_t* pDes = &des_scan[pPixelWeights->m_SrcStart * des_Bpp];
- *pDes++ = (uint8_t)((des_b) >> 16);
- *pDes++ = (uint8_t)((des_g) >> 16);
- *pDes++ = (uint8_t)((des_r) >> 16);
- *pDes = *p;
- } break;
- default:
- return FALSE;
- }
- }
- }
- return TRUE;
-}
-void CCodec_ProgressiveDecoder::PngOneOneMapResampleHorz(
- CFX_DIBitmap* pDeviceBitmap,
- int32_t des_line,
- uint8_t* src_scan,
- FXCodec_Format src_format) {
- uint8_t* des_scan = (uint8_t*)pDeviceBitmap->GetScanline(des_line);
- int32_t src_Bpp = (m_SrcFormat & 0xff) >> 3;
- int32_t des_Bpp = pDeviceBitmap->GetBPP() >> 3;
- int32_t src_left = m_clipBox.left;
- int32_t des_left = m_startX;
- src_scan += src_left * src_Bpp;
- des_scan += des_left * des_Bpp;
- for (int32_t des_col = 0; des_col < m_sizeX; des_col++) {
- PixelWeight* pPixelWeights = m_WeightHorzOO.GetPixelWeight(des_col);
- switch (pDeviceBitmap->GetFormat()) {
- case FXDIB_1bppMask:
- case FXDIB_1bppRgb:
- ASSERT(FALSE);
- return;
- case FXDIB_8bppMask:
- case FXDIB_8bppRgb: {
- if (pDeviceBitmap->GetPalette() != NULL) {
- return;
- }
- FX_DWORD des_g = 0;
- des_g +=
- pPixelWeights->m_Weights[0] * src_scan[pPixelWeights->m_SrcStart];
- des_g +=
- pPixelWeights->m_Weights[1] * src_scan[pPixelWeights->m_SrcEnd];
- *des_scan++ = (uint8_t)(des_g >> 16);
- } break;
- case FXDIB_Rgb:
- case FXDIB_Rgb32: {
- FX_DWORD des_b = 0, des_g = 0, des_r = 0;
- const uint8_t* p = src_scan;
- p = src_scan + pPixelWeights->m_SrcStart * src_Bpp;
- des_b += pPixelWeights->m_Weights[0] * (*p++);
- des_g += pPixelWeights->m_Weights[0] * (*p++);
- des_r += pPixelWeights->m_Weights[0] * (*p);
- p = src_scan + pPixelWeights->m_SrcEnd * src_Bpp;
- des_b += pPixelWeights->m_Weights[1] * (*p++);
- des_g += pPixelWeights->m_Weights[1] * (*p++);
- des_r += pPixelWeights->m_Weights[1] * (*p);
- *des_scan++ = (uint8_t)((des_b) >> 16);
- *des_scan++ = (uint8_t)((des_g) >> 16);
- *des_scan++ = (uint8_t)((des_r) >> 16);
- des_scan += des_Bpp - 3;
- } break;
- case FXDIB_Argb: {
- FX_DWORD des_a = 0, des_b = 0, des_g = 0, des_r = 0;
- const uint8_t* p = src_scan;
- p = src_scan + pPixelWeights->m_SrcStart * src_Bpp;
- des_b += pPixelWeights->m_Weights[0] * (*p++);
- des_g += pPixelWeights->m_Weights[0] * (*p++);
- des_r += pPixelWeights->m_Weights[0] * (*p++);
- des_a += pPixelWeights->m_Weights[0] * (*p);
- p = src_scan + pPixelWeights->m_SrcEnd * src_Bpp;
- des_b += pPixelWeights->m_Weights[1] * (*p++);
- des_g += pPixelWeights->m_Weights[1] * (*p++);
- des_r += pPixelWeights->m_Weights[1] * (*p++);
- des_a += pPixelWeights->m_Weights[1] * (*p);
- *des_scan++ = (uint8_t)((des_b) >> 16);
- *des_scan++ = (uint8_t)((des_g) >> 16);
- *des_scan++ = (uint8_t)((des_r) >> 16);
- *des_scan++ = (uint8_t)((des_a) >> 16);
- } break;
- default:
- return;
- }
- }
-}
-void CCodec_ProgressiveDecoder::PngFillScanlineBufCompletedFunc(void* pModule,
- int pass,
- int line) {
- CCodec_ProgressiveDecoder* pCodec = (CCodec_ProgressiveDecoder*)pModule;
- CFX_DIBitmap* pDIBitmap = pCodec->m_pDeviceBitmap;
- ASSERT(pDIBitmap != NULL);
- int src_top = pCodec->m_clipBox.top;
- int src_bottom = pCodec->m_clipBox.bottom;
- int des_top = pCodec->m_startY;
- int src_hei = pCodec->m_clipBox.Height();
- int des_hei = pCodec->m_sizeY;
- if (line >= src_top && line < src_bottom) {
- double scale_y = (double)des_hei / (double)src_hei;
- int src_row = line - src_top;
- int des_row = (int)(src_row * scale_y) + des_top;
- if (des_row >= des_top + des_hei) {
- return;
- }
- pCodec->PngOneOneMapResampleHorz(pDIBitmap, des_row, pCodec->m_pDecodeBuf,
- pCodec->m_SrcFormat);
- if (pCodec->m_SrcPassNumber == 1 && scale_y > 1.0) {
- pCodec->ResampleVert(pDIBitmap, scale_y, des_row);
- return;
- }
- if (pass == 6 && scale_y > 1.0) {
- pCodec->ResampleVert(pDIBitmap, scale_y, des_row);
- }
- }
-}
-FX_BOOL CCodec_ProgressiveDecoder::GifReadMoreData(ICodec_GifModule* pGifModule,
- FXCODEC_STATUS& err_status) {
- FX_DWORD dwSize = (FX_DWORD)m_pFile->GetSize();
- if (dwSize <= m_offSet) {
- return FALSE;
- }
- dwSize = dwSize - m_offSet;
- FX_DWORD dwAvail = pGifModule->GetAvailInput(m_pGifContext, NULL);
- if (dwAvail == m_SrcSize) {
- if (dwSize > FXCODEC_BLOCK_SIZE) {
- dwSize = FXCODEC_BLOCK_SIZE;
- }
- m_SrcSize = (dwSize + dwAvail + FXCODEC_BLOCK_SIZE - 1) /
- FXCODEC_BLOCK_SIZE * FXCODEC_BLOCK_SIZE;
- m_pSrcBuf = FX_Realloc(uint8_t, m_pSrcBuf, m_SrcSize);
- if (!m_pSrcBuf) {
- err_status = FXCODEC_STATUS_ERR_MEMORY;
- return FALSE;
- }
- } else {
- FX_DWORD dwConsume = m_SrcSize - dwAvail;
- if (dwAvail) {
- FXSYS_memcpy(m_pSrcBuf, m_pSrcBuf + dwConsume, dwAvail);
- }
- if (dwSize > dwConsume) {
- dwSize = dwConsume;
- }
- }
- if (!m_pFile->ReadBlock(m_pSrcBuf + dwAvail, m_offSet, dwSize)) {
- err_status = FXCODEC_STATUS_ERR_READ;
- return FALSE;
- }
- m_offSet += dwSize;
- pGifModule->Input(m_pGifContext, m_pSrcBuf, dwSize + dwAvail);
- return TRUE;
-}
-void CCodec_ProgressiveDecoder::GifRecordCurrentPositionCallback(
- void* pModule,
- FX_DWORD& cur_pos) {
- CCodec_ProgressiveDecoder* pCodec = (CCodec_ProgressiveDecoder*)pModule;
- FX_DWORD remain_size =
- pCodec->m_pCodecMgr->GetGifModule()->GetAvailInput(pCodec->m_pGifContext);
- cur_pos = pCodec->m_offSet - remain_size;
-}
-uint8_t* CCodec_ProgressiveDecoder::GifAskLocalPaletteBufCallback(
- void* pModule,
- int32_t frame_num,
- int32_t pal_size) {
- return FX_Alloc(uint8_t, pal_size);
-}
-FX_BOOL CCodec_ProgressiveDecoder::GifInputRecordPositionBufCallback(
- void* pModule,
- FX_DWORD rcd_pos,
- const FX_RECT& img_rc,
- int32_t pal_num,
- void* pal_ptr,
- int32_t delay_time,
- FX_BOOL user_input,
- int32_t trans_index,
- int32_t disposal_method,
- FX_BOOL interlace) {
- CCodec_ProgressiveDecoder* pCodec = (CCodec_ProgressiveDecoder*)pModule;
- pCodec->m_offSet = rcd_pos;
- FXCODEC_STATUS error_status = FXCODEC_STATUS_ERROR;
- if (!pCodec->GifReadMoreData(pCodec->m_pCodecMgr->GetGifModule(),
- error_status)) {
- return FALSE;
- }
- uint8_t* pPalette = NULL;
- if (pal_num != 0 && pal_ptr) {
- pPalette = (uint8_t*)pal_ptr;
- } else {
- pal_num = pCodec->m_GifPltNumber;
- pPalette = pCodec->m_pGifPalette;
- }
- if (pCodec->m_pSrcPalette == NULL) {
- pCodec->m_pSrcPalette = FX_Alloc(FX_ARGB, pal_num);
- } else if (pal_num > pCodec->m_SrcPaletteNumber) {
- pCodec->m_pSrcPalette = FX_Realloc(FX_ARGB, pCodec->m_pSrcPalette, pal_num);
- }
- if (pCodec->m_pSrcPalette == NULL) {
- return FALSE;
- }
- pCodec->m_SrcPaletteNumber = pal_num;
- for (int i = 0; i < pal_num; i++) {
- FX_DWORD j = i * 3;
- pCodec->m_pSrcPalette[i] =
- ArgbEncode(0xff, pPalette[j], pPalette[j + 1], pPalette[j + 2]);
- }
- pCodec->m_GifTransIndex = trans_index;
- pCodec->m_GifFrameRect = img_rc;
- pCodec->m_SrcPassNumber = interlace ? 4 : 1;
- int32_t pal_index = pCodec->m_GifBgIndex;
- CFX_DIBitmap* pDevice = pCodec->m_pDeviceBitmap;
- if (trans_index >= pal_num) {
- trans_index = -1;
- }
- if (trans_index != -1) {
- pCodec->m_pSrcPalette[trans_index] &= 0x00ffffff;
- if (pDevice->HasAlpha()) {
- pal_index = trans_index;
- }
- }
- int startX = pCodec->m_startX;
- int startY = pCodec->m_startY;
- int sizeX = pCodec->m_sizeX;
- int sizeY = pCodec->m_sizeY;
- int Bpp = pDevice->GetBPP() / 8;
- FX_ARGB argb = pCodec->m_pSrcPalette[pal_index];
- for (int row = 0; row < sizeY; row++) {
- uint8_t* pScanline =
- (uint8_t*)pDevice->GetScanline(row + startY) + startX * Bpp;
- switch (pCodec->m_TransMethod) {
- case 3: {
- uint8_t gray =
- FXRGB2GRAY(FXARGB_R(argb), FXARGB_G(argb), FXARGB_B(argb));
- FXSYS_memset(pScanline, gray, sizeX);
- break;
- }
- case 8: {
- for (int col = 0; col < sizeX; col++) {
- *pScanline++ = FXARGB_B(argb);
- *pScanline++ = FXARGB_G(argb);
- *pScanline++ = FXARGB_R(argb);
- pScanline += Bpp - 3;
- }
- break;
- }
- case 12: {
- for (int col = 0; col < sizeX; col++) {
- FXARGB_SETDIB(pScanline, argb);
- pScanline += 4;
- }
- break;
- }
- }
- }
- return TRUE;
-}
-void CCodec_ProgressiveDecoder::GifReadScanlineCallback(void* pModule,
- int32_t row_num,
- uint8_t* row_buf) {
- CCodec_ProgressiveDecoder* pCodec = (CCodec_ProgressiveDecoder*)pModule;
- CFX_DIBitmap* pDIBitmap = pCodec->m_pDeviceBitmap;
- ASSERT(pDIBitmap != NULL);
- int32_t img_width = pCodec->m_GifFrameRect.Width();
- if (!pDIBitmap->HasAlpha()) {
- uint8_t* byte_ptr = row_buf;
- for (int i = 0; i < img_width; i++) {
- if (*byte_ptr == pCodec->m_GifTransIndex) {
- *byte_ptr = pCodec->m_GifBgIndex;
- }
- byte_ptr++;
- }
- }
- int32_t pal_index = pCodec->m_GifBgIndex;
- if (pCodec->m_GifTransIndex != -1 && pCodec->m_pDeviceBitmap->HasAlpha()) {
- pal_index = pCodec->m_GifTransIndex;
- }
- FXSYS_memset(pCodec->m_pDecodeBuf, pal_index, pCodec->m_SrcWidth);
- FX_BOOL bLastPass = (row_num % 2) == 1;
- int32_t line = row_num + pCodec->m_GifFrameRect.top;
- int32_t left = pCodec->m_GifFrameRect.left;
- FXSYS_memcpy(pCodec->m_pDecodeBuf + left, row_buf, img_width);
- int src_top = pCodec->m_clipBox.top;
- int src_bottom = pCodec->m_clipBox.bottom;
- int des_top = pCodec->m_startY;
- int src_hei = pCodec->m_clipBox.Height();
- int des_hei = pCodec->m_sizeY;
- if (line >= src_top && line < src_bottom) {
- double scale_y = (double)des_hei / (double)src_hei;
- int src_row = line - src_top;
- int des_row = (int)(src_row * scale_y) + des_top;
- if (des_row >= des_top + des_hei) {
- return;
- }
- pCodec->ReSampleScanline(pDIBitmap, des_row, pCodec->m_pDecodeBuf,
- pCodec->m_SrcFormat);
- if (scale_y > 1.0 &&
- (!pCodec->m_bInterpol || pCodec->m_SrcPassNumber == 1)) {
- pCodec->ResampleVert(pDIBitmap, scale_y, des_row);
- return;
- }
- if (scale_y > 1.0) {
- int des_bottom = des_top + pCodec->m_sizeY;
- int des_Bpp = pDIBitmap->GetBPP() >> 3;
- FX_DWORD des_ScanOffet = pCodec->m_startX * des_Bpp;
- if (des_row + (int)scale_y >= des_bottom - 1) {
- uint8_t* scan_src =
- (uint8_t*)pDIBitmap->GetScanline(des_row) + des_ScanOffet;
- int cur_row = des_row;
- while (++cur_row < des_bottom) {
- uint8_t* scan_des =
- (uint8_t*)pDIBitmap->GetScanline(cur_row) + des_ScanOffet;
- FX_DWORD size = pCodec->m_sizeX * des_Bpp;
- FXSYS_memcpy(scan_des, scan_src, size);
- }
- }
- if (bLastPass) {
- pCodec->GifDoubleLineResampleVert(pDIBitmap, scale_y, des_row);
- }
- }
- }
-}
-void CCodec_ProgressiveDecoder::GifDoubleLineResampleVert(
- CFX_DIBitmap* pDeviceBitmap,
- double scale_y,
- int des_row) {
- int des_Bpp = pDeviceBitmap->GetBPP() >> 3;
- FX_DWORD des_ScanOffet = m_startX * des_Bpp;
- int des_top = m_startY;
- int des_row_1 = des_row - int(2 * scale_y);
- if (des_row_1 < des_top) {
- des_row_1 = des_top;
- }
- for (; des_row_1 < des_row; des_row_1++) {
- uint8_t* scan_des =
- (uint8_t*)pDeviceBitmap->GetScanline(des_row_1) + des_ScanOffet;
- PixelWeight* pWeight = m_WeightVert.GetPixelWeight(des_row_1 - des_top);
- const uint8_t* scan_src1 =
- pDeviceBitmap->GetScanline(pWeight->m_SrcStart + des_top) +
- des_ScanOffet;
- const uint8_t* scan_src2 =
- pDeviceBitmap->GetScanline(pWeight->m_SrcEnd + des_top) + des_ScanOffet;
- for (int des_col = 0; des_col < m_sizeX; des_col++) {
- switch (pDeviceBitmap->GetFormat()) {
- case FXDIB_Invalid:
- case FXDIB_1bppMask:
- case FXDIB_1bppRgb:
- return;
- case FXDIB_8bppMask:
- case FXDIB_8bppRgb: {
- if (pDeviceBitmap->GetPalette() != NULL) {
- return;
- }
- int des_g = 0;
- des_g += pWeight->m_Weights[0] * (*scan_src1++);
- des_g += pWeight->m_Weights[1] * (*scan_src2++);
- *scan_des++ = (uint8_t)(des_g >> 16);
- } break;
- case FXDIB_Rgb:
- case FXDIB_Rgb32: {
- FX_DWORD des_b = 0, des_g = 0, des_r = 0;
- des_b += pWeight->m_Weights[0] * (*scan_src1++);
- des_g += pWeight->m_Weights[0] * (*scan_src1++);
- des_r += pWeight->m_Weights[0] * (*scan_src1++);
- scan_src1 += des_Bpp - 3;
- des_b += pWeight->m_Weights[1] * (*scan_src2++);
- des_g += pWeight->m_Weights[1] * (*scan_src2++);
- des_r += pWeight->m_Weights[1] * (*scan_src2++);
- scan_src2 += des_Bpp - 3;
- *scan_des++ = (uint8_t)((des_b) >> 16);
- *scan_des++ = (uint8_t)((des_g) >> 16);
- *scan_des++ = (uint8_t)((des_r) >> 16);
- scan_des += des_Bpp - 3;
- } break;
- case FXDIB_Argb: {
- FX_DWORD des_a = 0, des_b = 0, des_g = 0, des_r = 0;
- des_b += pWeight->m_Weights[0] * (*scan_src1++);
- des_g += pWeight->m_Weights[0] * (*scan_src1++);
- des_r += pWeight->m_Weights[0] * (*scan_src1++);
- des_a += pWeight->m_Weights[0] * (*scan_src1++);
- des_b += pWeight->m_Weights[1] * (*scan_src2++);
- des_g += pWeight->m_Weights[1] * (*scan_src2++);
- des_r += pWeight->m_Weights[1] * (*scan_src2++);
- des_a += pWeight->m_Weights[1] * (*scan_src2++);
- *scan_des++ = (uint8_t)((des_b) >> 16);
- *scan_des++ = (uint8_t)((des_g) >> 16);
- *scan_des++ = (uint8_t)((des_r) >> 16);
- *scan_des++ = (uint8_t)((des_a) >> 16);
- } break;
- default:
- return;
- }
- }
- }
- int des_bottom = des_top + m_sizeY - 1;
- if (des_row + (int)(2 * scale_y) >= des_bottom &&
- des_row + (int)scale_y < des_bottom) {
- GifDoubleLineResampleVert(pDeviceBitmap, scale_y, des_row + (int)scale_y);
- }
-}
-FX_BOOL CCodec_ProgressiveDecoder::BmpReadMoreData(ICodec_BmpModule* pBmpModule,
- FXCODEC_STATUS& err_status) {
- FX_DWORD dwSize = (FX_DWORD)m_pFile->GetSize();
- if (dwSize <= m_offSet) {
- return FALSE;
- }
- dwSize = dwSize - m_offSet;
- FX_DWORD dwAvail = pBmpModule->GetAvailInput(m_pBmpContext, NULL);
- if (dwAvail == m_SrcSize) {
- if (dwSize > FXCODEC_BLOCK_SIZE) {
- dwSize = FXCODEC_BLOCK_SIZE;
- }
- m_SrcSize = (dwSize + dwAvail + FXCODEC_BLOCK_SIZE - 1) /
- FXCODEC_BLOCK_SIZE * FXCODEC_BLOCK_SIZE;
- m_pSrcBuf = FX_Realloc(uint8_t, m_pSrcBuf, m_SrcSize);
- if (!m_pSrcBuf) {
- err_status = FXCODEC_STATUS_ERR_MEMORY;
- return FALSE;
- }
- } else {
- FX_DWORD dwConsume = m_SrcSize - dwAvail;
- if (dwAvail) {
- FXSYS_memcpy(m_pSrcBuf, m_pSrcBuf + dwConsume, dwAvail);
- }
- if (dwSize > dwConsume) {
- dwSize = dwConsume;
- }
- }
- if (!m_pFile->ReadBlock(m_pSrcBuf + dwAvail, m_offSet, dwSize)) {
- err_status = FXCODEC_STATUS_ERR_READ;
- return FALSE;
- }
- m_offSet += dwSize;
- pBmpModule->Input(m_pBmpContext, m_pSrcBuf, dwSize + dwAvail);
- return TRUE;
-}
-FX_BOOL CCodec_ProgressiveDecoder::BmpInputImagePositionBufCallback(
- void* pModule,
- FX_DWORD rcd_pos) {
- CCodec_ProgressiveDecoder* pCodec = (CCodec_ProgressiveDecoder*)pModule;
- pCodec->m_offSet = rcd_pos;
- FXCODEC_STATUS error_status = FXCODEC_STATUS_ERROR;
- if (!pCodec->BmpReadMoreData(pCodec->m_pCodecMgr->GetBmpModule(),
- error_status)) {
- return FALSE;
- }
- return TRUE;
-}
-void CCodec_ProgressiveDecoder::BmpReadScanlineCallback(void* pModule,
- int32_t row_num,
- uint8_t* row_buf) {
- CCodec_ProgressiveDecoder* pCodec = (CCodec_ProgressiveDecoder*)pModule;
- CFX_DIBitmap* pDIBitmap = pCodec->m_pDeviceBitmap;
- ASSERT(pDIBitmap != NULL);
- FXSYS_memcpy(pCodec->m_pDecodeBuf, row_buf, pCodec->m_ScanlineSize);
- int src_top = pCodec->m_clipBox.top;
- int src_bottom = pCodec->m_clipBox.bottom;
- int des_top = pCodec->m_startY;
- int src_hei = pCodec->m_clipBox.Height();
- int des_hei = pCodec->m_sizeY;
- if (row_num >= src_top && row_num < src_bottom) {
- double scale_y = (double)des_hei / (double)src_hei;
- int src_row = row_num - src_top;
- int des_row = (int)(src_row * scale_y) + des_top;
- if (des_row >= des_top + des_hei) {
- return;
- }
- pCodec->ReSampleScanline(pDIBitmap, des_row, pCodec->m_pDecodeBuf,
- pCodec->m_SrcFormat);
- if (scale_y > 1.0) {
- if (pCodec->m_BmpIsTopBottom || !pCodec->m_bInterpol) {
- pCodec->ResampleVert(pDIBitmap, scale_y, des_row);
- return;
- } else {
- pCodec->ResampleVertBT(pDIBitmap, scale_y, des_row);
- }
- }
- }
-}
-void CCodec_ProgressiveDecoder::ResampleVertBT(CFX_DIBitmap* pDeviceBitmap,
- double scale_y,
- int des_row) {
- int des_Bpp = pDeviceBitmap->GetBPP() >> 3;
- FX_DWORD des_ScanOffet = m_startX * des_Bpp;
- int des_top = m_startY;
- int des_bottom = m_startY + m_sizeY;
- int des_row_1 = des_row + int(scale_y);
- if (des_row_1 >= des_bottom - 1) {
- uint8_t* scan_src =
- (uint8_t*)pDeviceBitmap->GetScanline(des_row) + des_ScanOffet;
- while (++des_row < des_bottom) {
- uint8_t* scan_des =
- (uint8_t*)pDeviceBitmap->GetScanline(des_row) + des_ScanOffet;
- FX_DWORD size = m_sizeX * des_Bpp;
- FXSYS_memcpy(scan_des, scan_src, size);
- }
- return;
- }
- for (; des_row_1 > des_row; des_row_1--) {
- uint8_t* scan_des =
- (uint8_t*)pDeviceBitmap->GetScanline(des_row_1) + des_ScanOffet;
- PixelWeight* pWeight = m_WeightVert.GetPixelWeight(des_row_1 - des_top);
- const uint8_t* scan_src1 =
- pDeviceBitmap->GetScanline(pWeight->m_SrcStart + des_top) +
- des_ScanOffet;
- const uint8_t* scan_src2 =
- pDeviceBitmap->GetScanline(pWeight->m_SrcEnd + des_top) + des_ScanOffet;
- for (int des_col = 0; des_col < m_sizeX; des_col++) {
- switch (pDeviceBitmap->GetFormat()) {
- case FXDIB_Invalid:
- case FXDIB_1bppMask:
- case FXDIB_1bppRgb:
- return;
- case FXDIB_8bppMask:
- case FXDIB_8bppRgb: {
- if (pDeviceBitmap->GetPalette() != NULL) {
- return;
- }
- int des_g = 0;
- des_g += pWeight->m_Weights[0] * (*scan_src1++);
- des_g += pWeight->m_Weights[1] * (*scan_src2++);
- *scan_des++ = (uint8_t)(des_g >> 16);
- } break;
- case FXDIB_Rgb:
- case FXDIB_Rgb32: {
- FX_DWORD des_b = 0, des_g = 0, des_r = 0;
- des_b += pWeight->m_Weights[0] * (*scan_src1++);
- des_g += pWeight->m_Weights[0] * (*scan_src1++);
- des_r += pWeight->m_Weights[0] * (*scan_src1++);
- scan_src1 += des_Bpp - 3;
- des_b += pWeight->m_Weights[1] * (*scan_src2++);
- des_g += pWeight->m_Weights[1] * (*scan_src2++);
- des_r += pWeight->m_Weights[1] * (*scan_src2++);
- scan_src2 += des_Bpp - 3;
- *scan_des++ = (uint8_t)((des_b) >> 16);
- *scan_des++ = (uint8_t)((des_g) >> 16);
- *scan_des++ = (uint8_t)((des_r) >> 16);
- scan_des += des_Bpp - 3;
- } break;
- case FXDIB_Argb: {
- FX_DWORD des_a = 0, des_b = 0, des_g = 0, des_r = 0;
- des_b += pWeight->m_Weights[0] * (*scan_src1++);
- des_g += pWeight->m_Weights[0] * (*scan_src1++);
- des_r += pWeight->m_Weights[0] * (*scan_src1++);
- des_a += pWeight->m_Weights[0] * (*scan_src1++);
- des_b += pWeight->m_Weights[1] * (*scan_src2++);
- des_g += pWeight->m_Weights[1] * (*scan_src2++);
- des_r += pWeight->m_Weights[1] * (*scan_src2++);
- des_a += pWeight->m_Weights[1] * (*scan_src2++);
- *scan_des++ = (uint8_t)((des_b) >> 16);
- *scan_des++ = (uint8_t)((des_g) >> 16);
- *scan_des++ = (uint8_t)((des_r) >> 16);
- *scan_des++ = (uint8_t)((des_a) >> 16);
- } break;
- default:
- return;
- }
- }
- }
-}
-FX_BOOL CCodec_ProgressiveDecoder::DetectImageType(
- FXCODEC_IMAGE_TYPE imageType,
- CFX_DIBAttribute* pAttribute) {
- m_offSet = 0;
- FX_DWORD size = (FX_DWORD)m_pFile->GetSize();
- if (size > FXCODEC_BLOCK_SIZE) {
- size = FXCODEC_BLOCK_SIZE;
- }
- if (m_pSrcBuf != NULL) {
- FX_Free(m_pSrcBuf);
- m_pSrcBuf = NULL;
- }
- m_pSrcBuf = FX_Alloc(uint8_t, size);
- if (m_pSrcBuf == NULL) {
- m_status = FXCODEC_STATUS_ERR_MEMORY;
- return FALSE;
- }
- FXSYS_memset(m_pSrcBuf, 0, size);
- m_SrcSize = size;
- switch (imageType) {
- case FXCODEC_IMAGE_BMP: {
- ICodec_BmpModule* pBmpModule = m_pCodecMgr->GetBmpModule();
- if (pBmpModule == NULL) {
- m_status = FXCODEC_STATUS_ERR_MEMORY;
- return FALSE;
- }
- pBmpModule->InputImagePositionBufCallback =
- BmpInputImagePositionBufCallback;
- pBmpModule->ReadScanlineCallback = BmpReadScanlineCallback;
- m_pBmpContext = pBmpModule->Start((void*)this);
- if (m_pBmpContext == NULL) {
- m_status = FXCODEC_STATUS_ERR_MEMORY;
- return FALSE;
- }
- FX_BOOL bResult = m_pFile->ReadBlock(m_pSrcBuf, 0, size);
- if (!bResult) {
- m_status = FXCODEC_STATUS_ERR_READ;
- return FALSE;
- }
- m_offSet += size;
- pBmpModule->Input(m_pBmpContext, m_pSrcBuf, size);
- FX_DWORD* pPalette = NULL;
- int32_t readResult = pBmpModule->ReadHeader(
- m_pBmpContext, &m_SrcWidth, &m_SrcHeight, &m_BmpIsTopBottom,
- &m_SrcComponents, &m_SrcPaletteNumber, &pPalette, pAttribute);
- while (readResult == 2) {
- FXCODEC_STATUS error_status = FXCODEC_STATUS_ERR_FORMAT;
- if (!BmpReadMoreData(pBmpModule, error_status)) {
- m_status = error_status;
- return FALSE;
- }
- readResult = pBmpModule->ReadHeader(
- m_pBmpContext, &m_SrcWidth, &m_SrcHeight, &m_BmpIsTopBottom,
- &m_SrcComponents, &m_SrcPaletteNumber, &pPalette, pAttribute);
- }
- if (readResult == 1) {
- m_SrcBPC = 8;
- m_clipBox = FX_RECT(0, 0, m_SrcWidth, m_SrcHeight);
- if (m_pSrcPalette != NULL) {
- FX_Free(m_pSrcPalette);
- m_pSrcPalette = NULL;
- }
- if (m_SrcPaletteNumber) {
- m_pSrcPalette = FX_Alloc(FX_ARGB, m_SrcPaletteNumber);
- if (m_pSrcPalette == NULL) {
- m_status = FXCODEC_STATUS_ERR_MEMORY;
- return FALSE;
- }
- FXSYS_memcpy(m_pSrcPalette, pPalette,
- m_SrcPaletteNumber * sizeof(FX_DWORD));
- }
- return TRUE;
- }
- if (m_pBmpContext != NULL) {
- pBmpModule->Finish(m_pBmpContext);
- m_pBmpContext = NULL;
- }
- m_status = FXCODEC_STATUS_ERR_FORMAT;
- return FALSE;
- } break;
- case FXCODEC_IMAGE_JPG: {
- ICodec_JpegModule* pJpegModule = m_pCodecMgr->GetJpegModule();
- if (pJpegModule == NULL) {
- m_status = FXCODEC_STATUS_ERR_MEMORY;
- return FALSE;
- }
- m_pJpegContext = pJpegModule->Start();
- if (m_pJpegContext == NULL) {
- m_status = FXCODEC_STATUS_ERR_MEMORY;
- return FALSE;
- }
- FX_BOOL bResult = m_pFile->ReadBlock(m_pSrcBuf, 0, size);
- if (!bResult) {
- m_status = FXCODEC_STATUS_ERR_READ;
- return FALSE;
- }
- m_offSet += size;
- pJpegModule->Input(m_pJpegContext, m_pSrcBuf, size);
- int32_t readResult =
- pJpegModule->ReadHeader(m_pJpegContext, &m_SrcWidth, &m_SrcHeight,
- &m_SrcComponents, pAttribute);
- while (readResult == 2) {
- FXCODEC_STATUS error_status = FXCODEC_STATUS_ERR_FORMAT;
- if (!JpegReadMoreData(pJpegModule, error_status)) {
- m_status = error_status;
- return FALSE;
- }
- readResult =
- pJpegModule->ReadHeader(m_pJpegContext, &m_SrcWidth, &m_SrcHeight,
- &m_SrcComponents, pAttribute);
- }
- if (!readResult) {
- m_SrcBPC = 8;
- m_clipBox = FX_RECT(0, 0, m_SrcWidth, m_SrcHeight);
- return TRUE;
- }
- if (m_pJpegContext != NULL) {
- pJpegModule->Finish(m_pJpegContext);
- m_pJpegContext = NULL;
- }
- m_status = FXCODEC_STATUS_ERR_FORMAT;
- return FALSE;
- } break;
- case FXCODEC_IMAGE_PNG: {
- ICodec_PngModule* pPngModule = m_pCodecMgr->GetPngModule();
- if (pPngModule == NULL) {
- m_status = FXCODEC_STATUS_ERR_MEMORY;
- return FALSE;
- }
- pPngModule->ReadHeaderCallback =
- CCodec_ProgressiveDecoder::PngReadHeaderFunc;
- pPngModule->AskScanlineBufCallback =
- CCodec_ProgressiveDecoder::PngAskScanlineBufFunc;
- pPngModule->FillScanlineBufCompletedCallback =
- CCodec_ProgressiveDecoder::PngFillScanlineBufCompletedFunc;
- m_pPngContext = pPngModule->Start((void*)this);
- if (m_pPngContext == NULL) {
- m_status = FXCODEC_STATUS_ERR_MEMORY;
- return FALSE;
- }
- FX_BOOL bResult = m_pFile->ReadBlock(m_pSrcBuf, 0, size);
- if (!bResult) {
- m_status = FXCODEC_STATUS_ERR_READ;
- return FALSE;
- }
- m_offSet += size;
- bResult = pPngModule->Input(m_pPngContext, m_pSrcBuf, size, pAttribute);
- while (bResult) {
- FX_DWORD remain_size = (FX_DWORD)m_pFile->GetSize() - m_offSet;
- FX_DWORD input_size =
- remain_size > FXCODEC_BLOCK_SIZE ? FXCODEC_BLOCK_SIZE : remain_size;
- if (input_size == 0) {
- if (m_pPngContext != NULL) {
- pPngModule->Finish(m_pPngContext);
- }
- m_pPngContext = NULL;
- m_status = FXCODEC_STATUS_ERR_FORMAT;
- return FALSE;
- }
- if (m_pSrcBuf != NULL && input_size > m_SrcSize) {
- FX_Free(m_pSrcBuf);
- m_pSrcBuf = FX_Alloc(uint8_t, input_size);
- if (m_pSrcBuf == NULL) {
- m_status = FXCODEC_STATUS_ERR_MEMORY;
- return FALSE;
- }
- FXSYS_memset(m_pSrcBuf, 0, input_size);
- m_SrcSize = input_size;
- }
- bResult = m_pFile->ReadBlock(m_pSrcBuf, m_offSet, input_size);
- if (!bResult) {
- m_status = FXCODEC_STATUS_ERR_READ;
- return FALSE;
- }
- m_offSet += input_size;
- bResult =
- pPngModule->Input(m_pPngContext, m_pSrcBuf, input_size, pAttribute);
- }
- ASSERT(!bResult);
- if (m_pPngContext != NULL) {
- pPngModule->Finish(m_pPngContext);
- m_pPngContext = NULL;
- }
- if (m_SrcPassNumber == 0) {
- m_status = FXCODEC_STATUS_ERR_FORMAT;
- return FALSE;
- }
- } break;
- case FXCODEC_IMAGE_GIF: {
- ICodec_GifModule* pGifModule = m_pCodecMgr->GetGifModule();
- if (pGifModule == NULL) {
- m_status = FXCODEC_STATUS_ERR_MEMORY;
- return FALSE;
- }
- pGifModule->RecordCurrentPositionCallback =
- CCodec_ProgressiveDecoder::GifRecordCurrentPositionCallback;
- pGifModule->AskLocalPaletteBufCallback =
- CCodec_ProgressiveDecoder::GifAskLocalPaletteBufCallback;
- pGifModule->InputRecordPositionBufCallback =
- CCodec_ProgressiveDecoder::GifInputRecordPositionBufCallback;
- pGifModule->ReadScanlineCallback =
- CCodec_ProgressiveDecoder::GifReadScanlineCallback;
- m_pGifContext = pGifModule->Start((void*)this);
- if (m_pGifContext == NULL) {
- m_status = FXCODEC_STATUS_ERR_MEMORY;
- return FALSE;
- }
- FX_BOOL bResult = m_pFile->ReadBlock(m_pSrcBuf, 0, size);
- if (!bResult) {
- m_status = FXCODEC_STATUS_ERR_READ;
- return FALSE;
- }
- m_offSet += size;
- pGifModule->Input(m_pGifContext, m_pSrcBuf, size);
- m_SrcComponents = 1;
- int32_t readResult = pGifModule->ReadHeader(
- m_pGifContext, &m_SrcWidth, &m_SrcHeight, &m_GifPltNumber,
- (void**)&m_pGifPalette, &m_GifBgIndex, nullptr);
- while (readResult == 2) {
- FXCODEC_STATUS error_status = FXCODEC_STATUS_ERR_FORMAT;
- if (!GifReadMoreData(pGifModule, error_status)) {
- m_status = error_status;
- return FALSE;
- }
- readResult = pGifModule->ReadHeader(
- m_pGifContext, &m_SrcWidth, &m_SrcHeight, &m_GifPltNumber,
- (void**)&m_pGifPalette, &m_GifBgIndex, nullptr);
- }
- if (readResult == 1) {
- m_SrcBPC = 8;
- m_clipBox = FX_RECT(0, 0, m_SrcWidth, m_SrcHeight);
- return TRUE;
- }
- if (m_pGifContext != NULL) {
- pGifModule->Finish(m_pGifContext);
- m_pGifContext = NULL;
- }
- m_status = FXCODEC_STATUS_ERR_FORMAT;
- return FALSE;
- } break;
- case FXCODEC_IMAGE_TIF: {
- ICodec_TiffModule* pTiffModule = m_pCodecMgr->GetTiffModule();
- if (pTiffModule == NULL) {
- m_status = FXCODEC_STATUS_ERR_FORMAT;
- return FALSE;
- }
- m_pTiffContext = pTiffModule->CreateDecoder(m_pFile);
- if (m_pTiffContext == NULL) {
- m_status = FXCODEC_STATUS_ERR_FORMAT;
- return FALSE;
- }
- int32_t frames = 0;
- pTiffModule->GetFrames(m_pTiffContext, frames);
- FX_DWORD bpc;
- FX_BOOL ret = pTiffModule->LoadFrameInfo(
- m_pTiffContext, 0, (FX_DWORD&)m_SrcWidth, (FX_DWORD&)m_SrcHeight,
- (FX_DWORD&)m_SrcComponents, bpc, pAttribute);
- m_SrcComponents = 4;
- m_clipBox = FX_RECT(0, 0, m_SrcWidth, m_SrcHeight);
- if (!ret) {
- pTiffModule->DestroyDecoder(m_pTiffContext);
- (m_pTiffContext = NULL);
- (m_status = FXCODEC_STATUS_ERR_FORMAT);
- return FALSE;
- }
- } break;
- default:
- m_status = FXCODEC_STATUS_ERR_FORMAT;
- return FALSE;
- }
- return TRUE;
-}
-FXCODEC_STATUS CCodec_ProgressiveDecoder::LoadImageInfo(
- IFX_FileRead* pFile,
- FXCODEC_IMAGE_TYPE imageType,
- CFX_DIBAttribute* pAttribute) {
- switch (m_status) {
- case FXCODEC_STATUS_FRAME_READY:
- case FXCODEC_STATUS_FRAME_TOBECONTINUE:
- case FXCODEC_STATUS_DECODE_READY:
- case FXCODEC_STATUS_DECODE_TOBECONTINUE:
- return FXCODEC_STATUS_ERROR;
- default:;
- }
- if (pFile == NULL) {
- m_status = FXCODEC_STATUS_ERR_PARAMS;
- m_pFile = NULL;
- return m_status;
- }
- m_pFile = pFile;
- m_offSet = 0;
- m_SrcWidth = m_SrcHeight = 0;
- m_SrcComponents = m_SrcBPC = 0;
- m_clipBox = FX_RECT(0, 0, 0, 0);
- m_startX = m_startY = 0;
- m_sizeX = m_sizeY = 0;
- m_SrcPassNumber = 0;
- if (imageType != FXCODEC_IMAGE_UNKNOWN &&
- DetectImageType(imageType, pAttribute)) {
- m_imagType = imageType;
- m_status = FXCODEC_STATUS_FRAME_READY;
- return m_status;
- }
- for (int type = FXCODEC_IMAGE_BMP; type < FXCODEC_IMAGE_MAX; type++) {
- if (DetectImageType((FXCODEC_IMAGE_TYPE)type, pAttribute)) {
- m_imagType = (FXCODEC_IMAGE_TYPE)type;
- m_status = FXCODEC_STATUS_FRAME_READY;
- return m_status;
- }
- }
- m_status = FXCODEC_STATUS_ERR_FORMAT;
- m_pFile = NULL;
- return m_status;
-}
-void CCodec_ProgressiveDecoder::SetClipBox(FX_RECT* clip) {
- if (m_status != FXCODEC_STATUS_FRAME_READY) {
- return;
- }
- if (clip->IsEmpty()) {
- m_clipBox = FX_RECT(0, 0, 0, 0);
- return;
- }
- if (clip->left < 0) {
- clip->left = 0;
- }
- if (clip->right > m_SrcWidth) {
- clip->right = m_SrcWidth;
- }
- if (clip->top < 0) {
- clip->top = 0;
- }
- if (clip->bottom > m_SrcHeight) {
- clip->bottom = m_SrcHeight;
- }
- if (clip->IsEmpty()) {
- m_clipBox = FX_RECT(0, 0, 0, 0);
- return;
- }
- m_clipBox = *clip;
-}
-void CCodec_ProgressiveDecoder::GetDownScale(int& down_scale) {
- down_scale = 1;
- int ratio_w = m_clipBox.Width() / m_sizeX;
- int ratio_h = m_clipBox.Height() / m_sizeY;
- int ratio = (ratio_w > ratio_h) ? ratio_h : ratio_w;
- if (ratio >= 8) {
- down_scale = 8;
- } else if (ratio >= 4) {
- down_scale = 4;
- } else if (ratio >= 2) {
- down_scale = 2;
- }
- m_clipBox.left /= down_scale;
- m_clipBox.right /= down_scale;
- m_clipBox.top /= down_scale;
- m_clipBox.bottom /= down_scale;
- if (m_clipBox.right == m_clipBox.left) {
- m_clipBox.right = m_clipBox.left + 1;
- }
- if (m_clipBox.bottom == m_clipBox.top) {
- m_clipBox.bottom = m_clipBox.top + 1;
- }
-}
-void CCodec_ProgressiveDecoder::GetTransMethod(FXDIB_Format des_format,
- FXCodec_Format src_format) {
- switch (des_format) {
- case FXDIB_1bppMask:
- case FXDIB_1bppRgb: {
- switch (src_format) {
- case FXCodec_1bppGray:
- m_TransMethod = 0;
- break;
- default:
- m_TransMethod = -1;
- }
- } break;
- case FXDIB_8bppMask:
- case FXDIB_8bppRgb: {
- switch (src_format) {
- case FXCodec_1bppGray:
- m_TransMethod = 1;
- break;
- case FXCodec_8bppGray:
- m_TransMethod = 2;
- break;
- case FXCodec_1bppRgb:
- case FXCodec_8bppRgb:
- m_TransMethod = 3;
- break;
- case FXCodec_Rgb:
- case FXCodec_Rgb32:
- case FXCodec_Argb:
- m_TransMethod = 4;
- break;
- case FXCodec_Cmyk:
- m_TransMethod = 5;
- break;
- default:
- m_TransMethod = -1;
- }
- } break;
- case FXDIB_Rgb: {
- switch (src_format) {
- case FXCodec_1bppGray:
- m_TransMethod = 6;
- break;
- case FXCodec_8bppGray:
- m_TransMethod = 7;
- break;
- case FXCodec_1bppRgb:
- case FXCodec_8bppRgb:
- m_TransMethod = 8;
- break;
- case FXCodec_Rgb:
- case FXCodec_Rgb32:
- case FXCodec_Argb:
- m_TransMethod = 9;
- break;
- case FXCodec_Cmyk:
- m_TransMethod = 10;
- break;
- default:
- m_TransMethod = -1;
- }
- } break;
- case FXDIB_Rgb32:
- case FXDIB_Argb: {
- switch (src_format) {
- case FXCodec_1bppGray:
- m_TransMethod = 6;
- break;
- case FXCodec_8bppGray:
- m_TransMethod = 7;
- break;
- case FXCodec_1bppRgb:
- case FXCodec_8bppRgb:
- if (des_format == FXDIB_Argb) {
- m_TransMethod = 12;
- } else {
- m_TransMethod = 8;
- }
- break;
- case FXCodec_Rgb:
- case FXCodec_Rgb32:
- m_TransMethod = 9;
- break;
- case FXCodec_Cmyk:
- m_TransMethod = 10;
- break;
- case FXCodec_Argb:
- m_TransMethod = 11;
- break;
- default:
- m_TransMethod = -1;
- }
- } break;
- default:
- m_TransMethod = -1;
- }
-}
-void _RGB2BGR(uint8_t* buffer, int width = 1) {
- if (buffer && width > 0) {
- uint8_t temp;
- int i = 0;
- int j = 0;
- for (; i < width; i++, j += 3) {
- temp = buffer[j];
- buffer[j] = buffer[j + 2];
- buffer[j + 2] = temp;
- }
- }
-}
-void CCodec_ProgressiveDecoder::ReSampleScanline(CFX_DIBitmap* pDeviceBitmap,
- int des_line,
- uint8_t* src_scan,
- FXCodec_Format src_format) {
- int src_left = m_clipBox.left;
- int des_left = m_startX;
- uint8_t* des_scan =
- pDeviceBitmap->GetBuffer() + des_line * pDeviceBitmap->GetPitch();
- int src_bpp = src_format & 0xff;
- int des_bpp = pDeviceBitmap->GetBPP();
- int src_Bpp = src_bpp >> 3;
- int des_Bpp = des_bpp >> 3;
- src_scan += src_left * src_Bpp;
- des_scan += des_left * des_Bpp;
- for (int des_col = 0; des_col < m_sizeX; des_col++) {
- PixelWeight* pPixelWeights = m_WeightHorz.GetPixelWeight(des_col);
- switch (m_TransMethod) {
- case -1:
- return;
- case 0:
- return;
- case 1:
- return;
- case 2: {
- FX_DWORD des_g = 0;
- for (int j = pPixelWeights->m_SrcStart; j <= pPixelWeights->m_SrcEnd;
- j++) {
- int pixel_weight =
- pPixelWeights->m_Weights[j - pPixelWeights->m_SrcStart];
- des_g += pixel_weight * src_scan[j];
- }
- *des_scan++ = (uint8_t)(des_g >> 16);
- } break;
- case 3: {
- int des_r = 0, des_g = 0, des_b = 0;
- for (int j = pPixelWeights->m_SrcStart; j <= pPixelWeights->m_SrcEnd;
- j++) {
- int pixel_weight =
- pPixelWeights->m_Weights[j - pPixelWeights->m_SrcStart];
- unsigned long argb = m_pSrcPalette[src_scan[j]];
- des_r += pixel_weight * (uint8_t)(argb >> 16);
- des_g += pixel_weight * (uint8_t)(argb >> 8);
- des_b += pixel_weight * (uint8_t)argb;
- }
- *des_scan++ =
- (uint8_t)FXRGB2GRAY((des_r >> 16), (des_g >> 16), (des_b >> 16));
- } break;
- case 4: {
- FX_DWORD des_b = 0, des_g = 0, des_r = 0;
- for (int j = pPixelWeights->m_SrcStart; j <= pPixelWeights->m_SrcEnd;
- j++) {
- int pixel_weight =
- pPixelWeights->m_Weights[j - pPixelWeights->m_SrcStart];
- const uint8_t* src_pixel = src_scan + j * src_Bpp;
- des_b += pixel_weight * (*src_pixel++);
- des_g += pixel_weight * (*src_pixel++);
- des_r += pixel_weight * (*src_pixel);
- }
- *des_scan++ =
- (uint8_t)FXRGB2GRAY((des_r >> 16), (des_g >> 16), (des_b >> 16));
- } break;
- case 5: {
- FX_DWORD des_b = 0, des_g = 0, des_r = 0;
- for (int j = pPixelWeights->m_SrcStart; j <= pPixelWeights->m_SrcEnd;
- j++) {
- int pixel_weight =
- pPixelWeights->m_Weights[j - pPixelWeights->m_SrcStart];
- const uint8_t* src_pixel = src_scan + j * src_Bpp;
- uint8_t src_b = 0, src_g = 0, src_r = 0;
- AdobeCMYK_to_sRGB1(255 - src_pixel[0], 255 - src_pixel[1],
- 255 - src_pixel[2], 255 - src_pixel[3], src_r,
- src_g, src_b);
- des_b += pixel_weight * src_b;
- des_g += pixel_weight * src_g;
- des_r += pixel_weight * src_r;
- }
- *des_scan++ =
- (uint8_t)FXRGB2GRAY((des_r >> 16), (des_g >> 16), (des_b >> 16));
- } break;
- case 6:
- return;
- case 7: {
- FX_DWORD des_g = 0;
- for (int j = pPixelWeights->m_SrcStart; j <= pPixelWeights->m_SrcEnd;
- j++) {
- int pixel_weight =
- pPixelWeights->m_Weights[j - pPixelWeights->m_SrcStart];
- des_g += pixel_weight * src_scan[j];
- }
- FXSYS_memset(des_scan, (uint8_t)(des_g >> 16), 3);
- des_scan += des_Bpp;
- } break;
- case 8: {
- int des_r = 0, des_g = 0, des_b = 0;
- for (int j = pPixelWeights->m_SrcStart; j <= pPixelWeights->m_SrcEnd;
- j++) {
- int pixel_weight =
- pPixelWeights->m_Weights[j - pPixelWeights->m_SrcStart];
- unsigned long argb = m_pSrcPalette[src_scan[j]];
- des_r += pixel_weight * (uint8_t)(argb >> 16);
- des_g += pixel_weight * (uint8_t)(argb >> 8);
- des_b += pixel_weight * (uint8_t)argb;
- }
- *des_scan++ = (uint8_t)((des_b) >> 16);
- *des_scan++ = (uint8_t)((des_g) >> 16);
- *des_scan++ = (uint8_t)((des_r) >> 16);
- des_scan += des_Bpp - 3;
- } break;
- case 12: {
- if (m_pBmpContext) {
- int des_r = 0, des_g = 0, des_b = 0;
- for (int j = pPixelWeights->m_SrcStart; j <= pPixelWeights->m_SrcEnd;
- j++) {
- int pixel_weight =
- pPixelWeights->m_Weights[j - pPixelWeights->m_SrcStart];
- unsigned long argb = m_pSrcPalette[src_scan[j]];
- des_r += pixel_weight * (uint8_t)(argb >> 16);
- des_g += pixel_weight * (uint8_t)(argb >> 8);
- des_b += pixel_weight * (uint8_t)argb;
- }
- *des_scan++ = (uint8_t)((des_b) >> 16);
- *des_scan++ = (uint8_t)((des_g) >> 16);
- *des_scan++ = (uint8_t)((des_r) >> 16);
- *des_scan++ = 0xFF;
- } else {
- int des_a = 0, des_r = 0, des_g = 0, des_b = 0;
- for (int j = pPixelWeights->m_SrcStart; j <= pPixelWeights->m_SrcEnd;
- j++) {
- int pixel_weight =
- pPixelWeights->m_Weights[j - pPixelWeights->m_SrcStart];
- unsigned long argb = m_pSrcPalette[src_scan[j]];
- des_a += pixel_weight * (uint8_t)(argb >> 24);
- des_r += pixel_weight * (uint8_t)(argb >> 16);
- des_g += pixel_weight * (uint8_t)(argb >> 8);
- des_b += pixel_weight * (uint8_t)argb;
- }
- *des_scan++ = (uint8_t)((des_b) >> 16);
- *des_scan++ = (uint8_t)((des_g) >> 16);
- *des_scan++ = (uint8_t)((des_r) >> 16);
- *des_scan++ = (uint8_t)((des_a) >> 16);
- }
- } break;
- case 9: {
- FX_DWORD des_b = 0, des_g = 0, des_r = 0;
- for (int j = pPixelWeights->m_SrcStart; j <= pPixelWeights->m_SrcEnd;
- j++) {
- int pixel_weight =
- pPixelWeights->m_Weights[j - pPixelWeights->m_SrcStart];
- const uint8_t* src_pixel = src_scan + j * src_Bpp;
- des_b += pixel_weight * (*src_pixel++);
- des_g += pixel_weight * (*src_pixel++);
- des_r += pixel_weight * (*src_pixel);
- }
- *des_scan++ = (uint8_t)((des_b) >> 16);
- *des_scan++ = (uint8_t)((des_g) >> 16);
- *des_scan++ = (uint8_t)((des_r) >> 16);
- des_scan += des_Bpp - 3;
- } break;
- case 10: {
- FX_DWORD des_b = 0, des_g = 0, des_r = 0;
- for (int j = pPixelWeights->m_SrcStart; j <= pPixelWeights->m_SrcEnd;
- j++) {
- int pixel_weight =
- pPixelWeights->m_Weights[j - pPixelWeights->m_SrcStart];
- const uint8_t* src_pixel = src_scan + j * src_Bpp;
- uint8_t src_b = 0, src_g = 0, src_r = 0;
- AdobeCMYK_to_sRGB1(255 - src_pixel[0], 255 - src_pixel[1],
- 255 - src_pixel[2], 255 - src_pixel[3], src_r,
- src_g, src_b);
- des_b += pixel_weight * src_b;
- des_g += pixel_weight * src_g;
- des_r += pixel_weight * src_r;
- }
- *des_scan++ = (uint8_t)((des_b) >> 16);
- *des_scan++ = (uint8_t)((des_g) >> 16);
- *des_scan++ = (uint8_t)((des_r) >> 16);
- des_scan += des_Bpp - 3;
- } break;
- case 11: {
- FX_DWORD des_alpha = 0, des_r = 0, des_g = 0, des_b = 0;
- for (int j = pPixelWeights->m_SrcStart; j <= pPixelWeights->m_SrcEnd;
- j++) {
- int pixel_weight =
- pPixelWeights->m_Weights[j - pPixelWeights->m_SrcStart];
- const uint8_t* src_pixel = src_scan + j * src_Bpp;
- pixel_weight = pixel_weight * src_pixel[3] / 255;
- des_b += pixel_weight * (*src_pixel++);
- des_g += pixel_weight * (*src_pixel++);
- des_r += pixel_weight * (*src_pixel);
- des_alpha += pixel_weight;
- }
- *des_scan++ = (uint8_t)((des_b) >> 16);
- *des_scan++ = (uint8_t)((des_g) >> 16);
- *des_scan++ = (uint8_t)((des_r) >> 16);
- *des_scan++ = (uint8_t)((des_alpha * 255) >> 16);
- } break;
- default:
- return;
- }
- }
-}
-void CCodec_ProgressiveDecoder::ResampleVert(CFX_DIBitmap* pDeviceBitmap,
- double scale_y,
- int des_row) {
- int des_Bpp = pDeviceBitmap->GetBPP() >> 3;
- FX_DWORD des_ScanOffet = m_startX * des_Bpp;
- if (m_bInterpol) {
- int des_top = m_startY;
- int des_row_1 = des_row - int(scale_y);
- if (des_row_1 < des_top) {
- int des_bottom = des_top + m_sizeY;
- if (des_row + (int)scale_y >= des_bottom - 1) {
- uint8_t* scan_src =
- (uint8_t*)pDeviceBitmap->GetScanline(des_row) + des_ScanOffet;
- while (++des_row < des_bottom) {
- uint8_t* scan_des =
- (uint8_t*)pDeviceBitmap->GetScanline(des_row) + des_ScanOffet;
- FX_DWORD size = m_sizeX * des_Bpp;
- FXSYS_memcpy(scan_des, scan_src, size);
- }
- }
- return;
- }
- for (; des_row_1 < des_row; des_row_1++) {
- uint8_t* scan_des =
- (uint8_t*)pDeviceBitmap->GetScanline(des_row_1) + des_ScanOffet;
- PixelWeight* pWeight = m_WeightVert.GetPixelWeight(des_row_1 - des_top);
- const uint8_t* scan_src1 =
- pDeviceBitmap->GetScanline(pWeight->m_SrcStart + des_top) +
- des_ScanOffet;
- const uint8_t* scan_src2 =
- pDeviceBitmap->GetScanline(pWeight->m_SrcEnd + des_top) +
- des_ScanOffet;
- for (int des_col = 0; des_col < m_sizeX; des_col++) {
- switch (pDeviceBitmap->GetFormat()) {
- case FXDIB_Invalid:
- case FXDIB_1bppMask:
- case FXDIB_1bppRgb:
- return;
- case FXDIB_8bppMask:
- case FXDIB_8bppRgb: {
- if (pDeviceBitmap->GetPalette() != NULL) {
- return;
- }
- int des_g = 0;
- des_g += pWeight->m_Weights[0] * (*scan_src1++);
- des_g += pWeight->m_Weights[1] * (*scan_src2++);
- *scan_des++ = (uint8_t)(des_g >> 16);
- } break;
- case FXDIB_Rgb:
- case FXDIB_Rgb32: {
- FX_DWORD des_b = 0, des_g = 0, des_r = 0;
- des_b += pWeight->m_Weights[0] * (*scan_src1++);
- des_g += pWeight->m_Weights[0] * (*scan_src1++);
- des_r += pWeight->m_Weights[0] * (*scan_src1++);
- scan_src1 += des_Bpp - 3;
- des_b += pWeight->m_Weights[1] * (*scan_src2++);
- des_g += pWeight->m_Weights[1] * (*scan_src2++);
- des_r += pWeight->m_Weights[1] * (*scan_src2++);
- scan_src2 += des_Bpp - 3;
- *scan_des++ = (uint8_t)((des_b) >> 16);
- *scan_des++ = (uint8_t)((des_g) >> 16);
- *scan_des++ = (uint8_t)((des_r) >> 16);
- scan_des += des_Bpp - 3;
- } break;
- case FXDIB_Argb: {
- FX_DWORD des_a = 0, des_b = 0, des_g = 0, des_r = 0;
- des_b += pWeight->m_Weights[0] * (*scan_src1++);
- des_g += pWeight->m_Weights[0] * (*scan_src1++);
- des_r += pWeight->m_Weights[0] * (*scan_src1++);
- des_a += pWeight->m_Weights[0] * (*scan_src1++);
- des_b += pWeight->m_Weights[1] * (*scan_src2++);
- des_g += pWeight->m_Weights[1] * (*scan_src2++);
- des_r += pWeight->m_Weights[1] * (*scan_src2++);
- des_a += pWeight->m_Weights[1] * (*scan_src2++);
- *scan_des++ = (uint8_t)((des_b) >> 16);
- *scan_des++ = (uint8_t)((des_g) >> 16);
- *scan_des++ = (uint8_t)((des_r) >> 16);
- *scan_des++ = (uint8_t)((des_a) >> 16);
- } break;
- default:
- return;
- }
- }
- }
- int des_bottom = des_top + m_sizeY;
- if (des_row + (int)scale_y >= des_bottom - 1) {
- uint8_t* scan_src =
- (uint8_t*)pDeviceBitmap->GetScanline(des_row) + des_ScanOffet;
- while (++des_row < des_bottom) {
- uint8_t* scan_des =
- (uint8_t*)pDeviceBitmap->GetScanline(des_row) + des_ScanOffet;
- FX_DWORD size = m_sizeX * des_Bpp;
- FXSYS_memcpy(scan_des, scan_src, size);
- }
- }
- return;
- }
- int multiple = (int)FXSYS_ceil((FX_FLOAT)scale_y - 1);
- if (multiple > 0) {
- uint8_t* scan_src =
- (uint8_t*)pDeviceBitmap->GetScanline(des_row) + des_ScanOffet;
- for (int i = 1; i <= multiple; i++) {
- if (des_row + i >= m_startY + m_sizeY) {
- return;
- }
- uint8_t* scan_des =
- (uint8_t*)pDeviceBitmap->GetScanline(des_row + i) + des_ScanOffet;
- FX_DWORD size = m_sizeX * des_Bpp;
- FXSYS_memcpy(scan_des, scan_src, size);
- }
- }
-}
-void CCodec_ProgressiveDecoder::Resample(CFX_DIBitmap* pDeviceBitmap,
- int32_t src_line,
- uint8_t* src_scan,
- FXCodec_Format src_format) {
- int src_top = m_clipBox.top;
- int des_top = m_startY;
- int src_hei = m_clipBox.Height();
- int des_hei = m_sizeY;
- if (src_line >= src_top) {
- double scale_y = (double)des_hei / (double)src_hei;
- int src_row = src_line - src_top;
- int des_row = (int)(src_row * scale_y) + des_top;
- if (des_row >= des_top + des_hei) {
- return;
- }
- ReSampleScanline(pDeviceBitmap, des_row, m_pDecodeBuf, src_format);
- if (scale_y > 1.0) {
- ResampleVert(pDeviceBitmap, scale_y, des_row);
- }
- }
-}
-FXCODEC_STATUS CCodec_ProgressiveDecoder::GetFrames(int32_t& frames,
- IFX_Pause* pPause) {
- if (!(m_status == FXCODEC_STATUS_FRAME_READY ||
- m_status == FXCODEC_STATUS_FRAME_TOBECONTINUE)) {
- return FXCODEC_STATUS_ERROR;
- }
- switch (m_imagType) {
- case FXCODEC_IMAGE_BMP:
- case FXCODEC_IMAGE_JPG:
- case FXCODEC_IMAGE_PNG:
- case FXCODEC_IMAGE_TIF:
- frames = m_FrameNumber = 1;
- return m_status = FXCODEC_STATUS_DECODE_READY;
- case FXCODEC_IMAGE_GIF: {
- ICodec_GifModule* pGifModule = m_pCodecMgr->GetGifModule();
- while (TRUE) {
- int32_t readResult =
- pGifModule->LoadFrameInfo(m_pGifContext, &m_FrameNumber);
- while (readResult == 2) {
- FXCODEC_STATUS error_status = FXCODEC_STATUS_ERR_READ;
- if (!GifReadMoreData(pGifModule, error_status)) {
- return error_status;
- }
- if (pPause && pPause->NeedToPauseNow()) {
- return m_status = FXCODEC_STATUS_FRAME_TOBECONTINUE;
- }
- readResult = pGifModule->LoadFrameInfo(m_pGifContext, &m_FrameNumber);
- }
- if (readResult == 1) {
- frames = m_FrameNumber;
- return m_status = FXCODEC_STATUS_DECODE_READY;
- }
- if (m_pGifContext != NULL) {
- pGifModule->Finish(m_pGifContext);
- m_pGifContext = NULL;
- }
- return m_status = FXCODEC_STATUS_ERROR;
- }
- } break;
- default:;
- }
- return FXCODEC_STATUS_ERROR;
-}
-FXCODEC_STATUS CCodec_ProgressiveDecoder::StartDecode(CFX_DIBitmap* pDIBitmap,
- int start_x,
- int start_y,
- int size_x,
- int size_y,
- int32_t frames,
- FX_BOOL bInterpol) {
- if (m_status != FXCODEC_STATUS_DECODE_READY) {
- return FXCODEC_STATUS_ERROR;
- }
- if (pDIBitmap == NULL || pDIBitmap->GetBPP() < 8 || frames < 0 ||
- frames >= m_FrameNumber) {
- return FXCODEC_STATUS_ERR_PARAMS;
- }
- m_pDeviceBitmap = pDIBitmap;
- if (m_clipBox.IsEmpty()) {
- return FXCODEC_STATUS_ERR_PARAMS;
- }
- if (size_x <= 0 || size_x > 65535 || size_y <= 0 || size_y > 65535) {
- return FXCODEC_STATUS_ERR_PARAMS;
- }
- FX_RECT device_rc =
- FX_RECT(start_x, start_y, start_x + size_x, start_y + size_y);
- int32_t out_range_x = device_rc.right - pDIBitmap->GetWidth();
- int32_t out_range_y = device_rc.bottom - pDIBitmap->GetHeight();
- device_rc.Intersect(
- FX_RECT(0, 0, pDIBitmap->GetWidth(), pDIBitmap->GetHeight()));
- if (device_rc.IsEmpty()) {
- return FXCODEC_STATUS_ERR_PARAMS;
- }
- m_startX = device_rc.left;
- m_startY = device_rc.top;
- m_sizeX = device_rc.Width();
- m_sizeY = device_rc.Height();
- m_bInterpol = bInterpol;
- m_FrameCur = 0;
- if (start_x < 0 || out_range_x > 0) {
- FX_FLOAT scaleX = (FX_FLOAT)m_clipBox.Width() / (FX_FLOAT)size_x;
- if (start_x < 0) {
- m_clipBox.left -= (int32_t)FXSYS_ceil((FX_FLOAT)start_x * scaleX);
- }
- if (out_range_x > 0) {
- m_clipBox.right -= (int32_t)FXSYS_floor((FX_FLOAT)out_range_x * scaleX);
- }
- }
- if (start_y < 0 || out_range_y > 0) {
- FX_FLOAT scaleY = (FX_FLOAT)m_clipBox.Height() / (FX_FLOAT)size_y;
- if (start_y < 0) {
- m_clipBox.top -= (int32_t)FXSYS_ceil((FX_FLOAT)start_y * scaleY);
- }
- if (out_range_y > 0) {
- m_clipBox.bottom -= (int32_t)FXSYS_floor((FX_FLOAT)out_range_y * scaleY);
- }
- }
- if (m_clipBox.IsEmpty()) {
- return FXCODEC_STATUS_ERR_PARAMS;
- }
- switch (m_imagType) {
- case FXCODEC_IMAGE_JPG: {
- ICodec_JpegModule* pJpegModule = m_pCodecMgr->GetJpegModule();
- int down_scale = 1;
- GetDownScale(down_scale);
- FX_BOOL bStart = pJpegModule->StartScanline(m_pJpegContext, down_scale);
- while (!bStart) {
- FXCODEC_STATUS error_status = FXCODEC_STATUS_ERROR;
- if (!JpegReadMoreData(pJpegModule, error_status)) {
- m_pDeviceBitmap = NULL;
- m_pFile = NULL;
- return m_status = error_status;
- }
- bStart = pJpegModule->StartScanline(m_pJpegContext, down_scale);
- }
- int scanline_size = (m_SrcWidth + down_scale - 1) / down_scale;
- scanline_size = (scanline_size * m_SrcComponents + 3) / 4 * 4;
- if (m_pDecodeBuf != NULL) {
- FX_Free(m_pDecodeBuf);
- m_pDecodeBuf = NULL;
- }
- m_pDecodeBuf = FX_Alloc(uint8_t, scanline_size);
- if (m_pDecodeBuf == NULL) {
- m_pDeviceBitmap = NULL;
- m_pFile = NULL;
- return m_status = FXCODEC_STATUS_ERR_MEMORY;
- }
- FXSYS_memset(m_pDecodeBuf, 0, scanline_size);
- m_WeightHorz.Calc(m_sizeX, 0, m_sizeX, m_clipBox.Width(), 0,
- m_clipBox.Width(), m_bInterpol);
- m_WeightVert.Calc(m_sizeY, m_clipBox.Height());
- switch (m_SrcComponents) {
- case 1:
- m_SrcFormat = FXCodec_8bppGray;
- break;
- case 3:
- m_SrcFormat = FXCodec_Rgb;
- break;
- case 4:
- m_SrcFormat = FXCodec_Cmyk;
- break;
- }
- GetTransMethod(pDIBitmap->GetFormat(), m_SrcFormat);
- return m_status = FXCODEC_STATUS_DECODE_TOBECONTINUE;
- } break;
- case FXCODEC_IMAGE_PNG: {
- ICodec_PngModule* pPngModule = m_pCodecMgr->GetPngModule();
- if (pPngModule == NULL) {
- m_pDeviceBitmap = NULL;
- m_pFile = NULL;
- return m_status = FXCODEC_STATUS_ERR_MEMORY;
- }
- if (m_pPngContext != NULL) {
- pPngModule->Finish(m_pPngContext);
- m_pPngContext = NULL;
- }
- m_pPngContext = pPngModule->Start((void*)this);
- if (m_pPngContext == NULL) {
- m_pDeviceBitmap = NULL;
- m_pFile = NULL;
- return m_status = FXCODEC_STATUS_ERR_MEMORY;
- }
- m_offSet = 0;
- switch (m_pDeviceBitmap->GetFormat()) {
- case FXDIB_8bppMask:
- case FXDIB_8bppRgb:
- m_SrcComponents = 1;
- m_SrcFormat = FXCodec_8bppGray;
- break;
- case FXDIB_Rgb:
- m_SrcComponents = 3;
- m_SrcFormat = FXCodec_Rgb;
- break;
- case FXDIB_Rgb32:
- case FXDIB_Argb:
- m_SrcComponents = 4;
- m_SrcFormat = FXCodec_Argb;
- break;
- default: {
- m_pDeviceBitmap = NULL;
- m_pFile = NULL;
- return m_status = FXCODEC_STATUS_ERR_PARAMS;
- }
- }
- GetTransMethod(m_pDeviceBitmap->GetFormat(), m_SrcFormat);
- int scanline_size = (m_SrcWidth * m_SrcComponents + 3) / 4 * 4;
- if (m_pDecodeBuf != NULL) {
- FX_Free(m_pDecodeBuf);
- m_pDecodeBuf = NULL;
- }
- m_pDecodeBuf = FX_Alloc(uint8_t, scanline_size);
- if (m_pDecodeBuf == NULL) {
- m_pDeviceBitmap = NULL;
- m_pFile = NULL;
- return m_status = FXCODEC_STATUS_ERR_MEMORY;
- }
- FXSYS_memset(m_pDecodeBuf, 0, scanline_size);
- m_WeightHorzOO.Calc(m_sizeX, m_clipBox.Width(), m_bInterpol);
- m_WeightVert.Calc(m_sizeY, m_clipBox.Height());
- return m_status = FXCODEC_STATUS_DECODE_TOBECONTINUE;
- } break;
- case FXCODEC_IMAGE_GIF: {
- ICodec_GifModule* pGifModule = m_pCodecMgr->GetGifModule();
- if (pGifModule == NULL) {
- m_pDeviceBitmap = NULL;
- m_pFile = NULL;
- return m_status = FXCODEC_STATUS_ERR_MEMORY;
- }
- m_SrcFormat = FXCodec_8bppRgb;
- GetTransMethod(m_pDeviceBitmap->GetFormat(), m_SrcFormat);
- int scanline_size = (m_SrcWidth + 3) / 4 * 4;
- if (m_pDecodeBuf != NULL) {
- FX_Free(m_pDecodeBuf);
- m_pDecodeBuf = NULL;
- }
- m_pDecodeBuf = FX_Alloc(uint8_t, scanline_size);
- if (m_pDecodeBuf == NULL) {
- m_pDeviceBitmap = NULL;
- m_pFile = NULL;
- return m_status = FXCODEC_STATUS_ERR_MEMORY;
- }
- FXSYS_memset(m_pDecodeBuf, 0, scanline_size);
- m_WeightHorz.Calc(m_sizeX, 0, m_sizeX, m_clipBox.Width(), 0,
- m_clipBox.Width(), m_bInterpol);
- m_WeightVert.Calc(m_sizeY, m_clipBox.Height());
- m_FrameCur = frames;
- return m_status = FXCODEC_STATUS_DECODE_TOBECONTINUE;
- } break;
- case FXCODEC_IMAGE_BMP: {
- ICodec_BmpModule* pBmpModule = m_pCodecMgr->GetBmpModule();
- if (pBmpModule == NULL) {
- m_pDeviceBitmap = NULL;
- m_pFile = NULL;
- return m_status = FXCODEC_STATUS_ERR_MEMORY;
- }
- switch (m_SrcComponents) {
- case 1:
- m_SrcFormat = FXCodec_8bppRgb;
- break;
- case 3:
- m_SrcFormat = FXCodec_Rgb;
- break;
- case 4:
- m_SrcFormat = FXCodec_Rgb32;
- break;
- }
- GetTransMethod(m_pDeviceBitmap->GetFormat(), m_SrcFormat);
- m_ScanlineSize = (m_SrcWidth * m_SrcComponents + 3) / 4 * 4;
- if (m_pDecodeBuf != NULL) {
- FX_Free(m_pDecodeBuf);
- m_pDecodeBuf = NULL;
- }
- m_pDecodeBuf = FX_Alloc(uint8_t, m_ScanlineSize);
- if (m_pDecodeBuf == NULL) {
- m_pDeviceBitmap = NULL;
- m_pFile = NULL;
- return m_status = FXCODEC_STATUS_ERR_MEMORY;
- }
- FXSYS_memset(m_pDecodeBuf, 0, m_ScanlineSize);
- m_WeightHorz.Calc(m_sizeX, 0, m_sizeX, m_clipBox.Width(), 0,
- m_clipBox.Width(), m_bInterpol);
- m_WeightVert.Calc(m_sizeY, m_clipBox.Height());
- return m_status = FXCODEC_STATUS_DECODE_TOBECONTINUE;
- } break;
- case FXCODEC_IMAGE_TIF:
- return m_status = FXCODEC_STATUS_DECODE_TOBECONTINUE;
- default:
- break;
- }
- return FXCODEC_STATUS_ERROR;
-}
-FXCODEC_STATUS CCodec_ProgressiveDecoder::ContinueDecode(IFX_Pause* pPause) {
- if (m_status != FXCODEC_STATUS_DECODE_TOBECONTINUE) {
- return FXCODEC_STATUS_ERROR;
- }
- switch (m_imagType) {
- case FXCODEC_IMAGE_JPG: {
- ICodec_JpegModule* pJpegModule = m_pCodecMgr->GetJpegModule();
- while (TRUE) {
- FX_BOOL readRes =
- pJpegModule->ReadScanline(m_pJpegContext, m_pDecodeBuf);
- while (!readRes) {
- FXCODEC_STATUS error_status = FXCODEC_STATUS_DECODE_FINISH;
- if (!JpegReadMoreData(pJpegModule, error_status)) {
- m_pDeviceBitmap = NULL;
- m_pFile = NULL;
- return m_status = error_status;
- }
- readRes = pJpegModule->ReadScanline(m_pJpegContext, m_pDecodeBuf);
- }
- if (m_SrcFormat == FXCodec_Rgb) {
- int src_Bpp = (m_SrcFormat & 0xff) >> 3;
- _RGB2BGR(m_pDecodeBuf + m_clipBox.left * src_Bpp, m_clipBox.Width());
- }
- if (m_SrcRow >= m_clipBox.bottom) {
- m_pDeviceBitmap = NULL;
- m_pFile = NULL;
- return m_status = FXCODEC_STATUS_DECODE_FINISH;
- }
- Resample(m_pDeviceBitmap, m_SrcRow, m_pDecodeBuf, m_SrcFormat);
- m_SrcRow++;
- if (pPause && pPause->NeedToPauseNow()) {
- return m_status = FXCODEC_STATUS_DECODE_TOBECONTINUE;
- }
- }
- } break;
- case FXCODEC_IMAGE_PNG: {
- ICodec_PngModule* pPngModule = m_pCodecMgr->GetPngModule();
- while (TRUE) {
- FX_DWORD remain_size = (FX_DWORD)m_pFile->GetSize() - m_offSet;
- FX_DWORD input_size =
- remain_size > FXCODEC_BLOCK_SIZE ? FXCODEC_BLOCK_SIZE : remain_size;
- if (input_size == 0) {
- if (m_pPngContext != NULL) {
- pPngModule->Finish(m_pPngContext);
- }
- m_pPngContext = NULL;
- m_pDeviceBitmap = NULL;
- m_pFile = NULL;
- return m_status = FXCODEC_STATUS_DECODE_FINISH;
- }
- if (m_pSrcBuf != NULL && input_size > m_SrcSize) {
- FX_Free(m_pSrcBuf);
- m_pSrcBuf = FX_Alloc(uint8_t, input_size);
- if (m_pSrcBuf == NULL) {
- m_pDeviceBitmap = NULL;
- m_pFile = NULL;
- return m_status = FXCODEC_STATUS_ERR_MEMORY;
- }
- FXSYS_memset(m_pSrcBuf, 0, input_size);
- m_SrcSize = input_size;
- }
- FX_BOOL bResult = m_pFile->ReadBlock(m_pSrcBuf, m_offSet, input_size);
- if (!bResult) {
- m_pDeviceBitmap = NULL;
- m_pFile = NULL;
- return m_status = FXCODEC_STATUS_ERR_READ;
- }
- m_offSet += input_size;
- bResult =
- pPngModule->Input(m_pPngContext, m_pSrcBuf, input_size, nullptr);
- if (!bResult) {
- m_pDeviceBitmap = NULL;
- m_pFile = NULL;
- return m_status = FXCODEC_STATUS_ERROR;
- }
- if (pPause && pPause->NeedToPauseNow()) {
- return m_status = FXCODEC_STATUS_DECODE_TOBECONTINUE;
- }
- }
- } break;
- case FXCODEC_IMAGE_GIF: {
- ICodec_GifModule* pGifModule = m_pCodecMgr->GetGifModule();
- while (TRUE) {
- int32_t readRes =
- pGifModule->LoadFrame(m_pGifContext, m_FrameCur, nullptr);
- while (readRes == 2) {
- FXCODEC_STATUS error_status = FXCODEC_STATUS_DECODE_FINISH;
- if (!GifReadMoreData(pGifModule, error_status)) {
- m_pDeviceBitmap = NULL;
- m_pFile = NULL;
- return m_status = error_status;
- }
- if (pPause && pPause->NeedToPauseNow()) {
- return m_status = FXCODEC_STATUS_DECODE_TOBECONTINUE;
- }
- readRes = pGifModule->LoadFrame(m_pGifContext, m_FrameCur, nullptr);
- }
- if (readRes == 1) {
- m_pDeviceBitmap = NULL;
- m_pFile = NULL;
- return m_status = FXCODEC_STATUS_DECODE_FINISH;
- }
- m_pDeviceBitmap = NULL;
- m_pFile = NULL;
- return m_status = FXCODEC_STATUS_ERROR;
- }
- } break;
- case FXCODEC_IMAGE_BMP: {
- ICodec_BmpModule* pBmpModule = m_pCodecMgr->GetBmpModule();
- while (TRUE) {
- int32_t readRes = pBmpModule->LoadImage(m_pBmpContext);
- while (readRes == 2) {
- FXCODEC_STATUS error_status = FXCODEC_STATUS_DECODE_FINISH;
- if (!BmpReadMoreData(pBmpModule, error_status)) {
- m_pDeviceBitmap = NULL;
- m_pFile = NULL;
- return m_status = error_status;
- }
- if (pPause && pPause->NeedToPauseNow()) {
- return m_status = FXCODEC_STATUS_DECODE_TOBECONTINUE;
- }
- readRes = pBmpModule->LoadImage(m_pBmpContext);
- }
- if (readRes == 1) {
- m_pDeviceBitmap = NULL;
- m_pFile = NULL;
- return m_status = FXCODEC_STATUS_DECODE_FINISH;
- }
- m_pDeviceBitmap = NULL;
- m_pFile = NULL;
- return m_status = FXCODEC_STATUS_ERROR;
- }
- } break;
- case FXCODEC_IMAGE_TIF: {
- ICodec_TiffModule* pTiffModule = m_pCodecMgr->GetTiffModule();
- FX_BOOL ret = FALSE;
- if (m_pDeviceBitmap->GetBPP() == 32 &&
- m_pDeviceBitmap->GetWidth() == m_SrcWidth && m_SrcWidth == m_sizeX &&
- m_pDeviceBitmap->GetHeight() == m_SrcHeight &&
- m_SrcHeight == m_sizeY && m_startX == 0 && m_startY == 0 &&
- m_clipBox.left == 0 && m_clipBox.top == 0 &&
- m_clipBox.right == m_SrcWidth && m_clipBox.bottom == m_SrcHeight) {
- ret = pTiffModule->Decode(m_pTiffContext, m_pDeviceBitmap);
- m_pDeviceBitmap = NULL;
- m_pFile = NULL;
- if (!ret) {
- return m_status = FXCODEC_STATUS_ERROR;
- }
- return m_status = FXCODEC_STATUS_DECODE_FINISH;
- } else {
- CFX_DIBitmap* pDIBitmap = new CFX_DIBitmap;
- pDIBitmap->Create(m_SrcWidth, m_SrcHeight, FXDIB_Argb);
- if (pDIBitmap->GetBuffer() == NULL) {
- delete pDIBitmap;
- m_pDeviceBitmap = NULL;
- m_pFile = NULL;
- return m_status = FXCODEC_STATUS_ERR_MEMORY;
- }
- ret = pTiffModule->Decode(m_pTiffContext, pDIBitmap);
- if (!ret) {
- delete pDIBitmap;
- m_pDeviceBitmap = NULL;
- m_pFile = NULL;
- return m_status = FXCODEC_STATUS_ERROR;
- }
- CFX_DIBitmap* pClipBitmap =
- (m_clipBox.left == 0 && m_clipBox.top == 0 &&
- m_clipBox.right == m_SrcWidth && m_clipBox.bottom == m_SrcHeight)
- ? pDIBitmap
- : pDIBitmap->Clone(&m_clipBox);
- if (pDIBitmap != pClipBitmap) {
- delete pDIBitmap;
- }
- if (pClipBitmap == NULL) {
- m_pDeviceBitmap = NULL;
- m_pFile = NULL;
- return m_status = FXCODEC_STATUS_ERR_MEMORY;
- }
- CFX_DIBitmap* pFormatBitmap = NULL;
- switch (m_pDeviceBitmap->GetFormat()) {
- case FXDIB_8bppRgb:
- pFormatBitmap = new CFX_DIBitmap;
- pFormatBitmap->Create(pClipBitmap->GetWidth(),
- pClipBitmap->GetHeight(), FXDIB_8bppRgb);
- break;
- case FXDIB_8bppMask:
- pFormatBitmap = new CFX_DIBitmap;
- pFormatBitmap->Create(pClipBitmap->GetWidth(),
- pClipBitmap->GetHeight(), FXDIB_8bppMask);
- break;
- case FXDIB_Rgb:
- pFormatBitmap = new CFX_DIBitmap;
- pFormatBitmap->Create(pClipBitmap->GetWidth(),
- pClipBitmap->GetHeight(), FXDIB_Rgb);
- break;
- case FXDIB_Rgb32:
- pFormatBitmap = new CFX_DIBitmap;
- pFormatBitmap->Create(pClipBitmap->GetWidth(),
- pClipBitmap->GetHeight(), FXDIB_Rgb32);
- break;
- case FXDIB_Argb:
- pFormatBitmap = pClipBitmap;
- break;
- default:;
- }
- switch (m_pDeviceBitmap->GetFormat()) {
- case FXDIB_8bppRgb:
- case FXDIB_8bppMask: {
- for (int32_t row = 0; row < pClipBitmap->GetHeight(); row++) {
- uint8_t* src_line = (uint8_t*)pClipBitmap->GetScanline(row);
- uint8_t* des_line = (uint8_t*)pFormatBitmap->GetScanline(row);
- for (int32_t col = 0; col < pClipBitmap->GetWidth(); col++) {
- uint8_t _a = 255 - src_line[3];
- uint8_t b = (src_line[0] * src_line[3] + 0xFF * _a) / 255;
- uint8_t g = (src_line[1] * src_line[3] + 0xFF * _a) / 255;
- uint8_t r = (src_line[2] * src_line[3] + 0xFF * _a) / 255;
- *des_line++ = FXRGB2GRAY(r, g, b);
- src_line += 4;
- }
- }
- } break;
- case FXDIB_Rgb:
- case FXDIB_Rgb32: {
- int32_t desBpp =
- (m_pDeviceBitmap->GetFormat() == FXDIB_Rgb) ? 3 : 4;
- for (int32_t row = 0; row < pClipBitmap->GetHeight(); row++) {
- uint8_t* src_line = (uint8_t*)pClipBitmap->GetScanline(row);
- uint8_t* des_line = (uint8_t*)pFormatBitmap->GetScanline(row);
- for (int32_t col = 0; col < pClipBitmap->GetWidth(); col++) {
- uint8_t _a = 255 - src_line[3];
- uint8_t b = (src_line[0] * src_line[3] + 0xFF * _a) / 255;
- uint8_t g = (src_line[1] * src_line[3] + 0xFF * _a) / 255;
- uint8_t r = (src_line[2] * src_line[3] + 0xFF * _a) / 255;
- *des_line++ = b;
- *des_line++ = g;
- *des_line++ = r;
- des_line += desBpp - 3;
- src_line += 4;
- }
- }
- } break;
- default:;
- }
- if (pClipBitmap != pFormatBitmap) {
- delete pClipBitmap;
- }
- if (pFormatBitmap == NULL) {
- m_pDeviceBitmap = NULL;
- m_pFile = NULL;
- return m_status = FXCODEC_STATUS_ERR_MEMORY;
- }
- CFX_DIBitmap* pStrechBitmap = pFormatBitmap->StretchTo(
- m_sizeX, m_sizeY, m_bInterpol ? FXDIB_INTERPOL : FXDIB_DOWNSAMPLE);
- delete pFormatBitmap;
- pFormatBitmap = NULL;
- if (pStrechBitmap == NULL) {
- m_pDeviceBitmap = NULL;
- m_pFile = NULL;
- return m_status = FXCODEC_STATUS_ERR_MEMORY;
- }
- m_pDeviceBitmap->TransferBitmap(m_startX, m_startY, m_sizeX, m_sizeY,
- pStrechBitmap, 0, 0);
- delete pStrechBitmap;
- pStrechBitmap = NULL;
- m_pDeviceBitmap = NULL;
- m_pFile = NULL;
- return m_status = FXCODEC_STATUS_DECODE_FINISH;
- }
- } break;
- default:
- break;
- }
- return FXCODEC_STATUS_ERROR;
-}
-ICodec_ProgressiveDecoder* CCodec_ModuleMgr::CreateProgressiveDecoder() {
- return new CCodec_ProgressiveDecoder(this);
-}
+// Copyright 2014 PDFium Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. + +// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com + +#include "core/include/fxge/fx_dib.h" +#include "core/include/fxcodec/fx_codec.h" +#include "fx_codec_progress.h" +void CFXCODEC_WeightTable::Calc(int dest_len, + int dest_min, + int dest_max, + int src_len, + int src_min, + int src_max, + FX_BOOL bInterpol) { + if (m_pWeightTables) { + FX_Free(m_pWeightTables); + } + double scale, base; + scale = FXSYS_Div((FX_FLOAT)(src_len), (FX_FLOAT)(dest_len)); + if (dest_len < 0) { + base = (FX_FLOAT)(src_len); + } else { + base = 0.0f; + } + m_ItemSize = + (int)(sizeof(int) * 2 + + sizeof(int) * (FXSYS_ceil(FXSYS_fabs((FX_FLOAT)scale)) + 1)); + m_DestMin = dest_min; + m_pWeightTables = FX_Alloc(uint8_t, (dest_max - dest_min) * m_ItemSize + 4); + if (m_pWeightTables == NULL) { + return; + } + if (FXSYS_fabs((FX_FLOAT)scale) < 1.0f) { + for (int dest_pixel = dest_min; dest_pixel < dest_max; dest_pixel++) { + PixelWeight& pixel_weights = *GetPixelWeight(dest_pixel); + double src_pos = dest_pixel * scale + scale / 2 + base; + if (bInterpol) { + pixel_weights.m_SrcStart = + (int)FXSYS_floor((FX_FLOAT)src_pos - 1.0f / 2); + pixel_weights.m_SrcEnd = (int)FXSYS_floor((FX_FLOAT)src_pos + 1.0f / 2); + if (pixel_weights.m_SrcStart < src_min) { + pixel_weights.m_SrcStart = src_min; + } + if (pixel_weights.m_SrcEnd >= src_max) { + pixel_weights.m_SrcEnd = src_max - 1; + } + if (pixel_weights.m_SrcStart == pixel_weights.m_SrcEnd) { + pixel_weights.m_Weights[0] = 65536; + } else { + pixel_weights.m_Weights[1] = FXSYS_round( + (FX_FLOAT)(src_pos - pixel_weights.m_SrcStart - 1.0f / 2) * + 65536); + pixel_weights.m_Weights[0] = 65536 - pixel_weights.m_Weights[1]; + } + } else { + pixel_weights.m_SrcStart = pixel_weights.m_SrcEnd = + (int)FXSYS_floor((FX_FLOAT)src_pos); + pixel_weights.m_Weights[0] = 65536; + } + } + return; + } + for (int dest_pixel = dest_min; dest_pixel < dest_max; dest_pixel++) { + PixelWeight& pixel_weights = *GetPixelWeight(dest_pixel); + double src_start = dest_pixel * scale + base; + double src_end = src_start + scale; + int start_i, end_i; + if (src_start < src_end) { + start_i = (int)FXSYS_floor((FX_FLOAT)src_start); + end_i = (int)FXSYS_ceil((FX_FLOAT)src_end); + } else { + start_i = (int)FXSYS_floor((FX_FLOAT)src_end); + end_i = (int)FXSYS_ceil((FX_FLOAT)src_start); + } + if (start_i < src_min) { + start_i = src_min; + } + if (end_i >= src_max) { + end_i = src_max - 1; + } + if (start_i > end_i) { + pixel_weights.m_SrcStart = start_i; + pixel_weights.m_SrcEnd = start_i; + continue; + } + pixel_weights.m_SrcStart = start_i; + pixel_weights.m_SrcEnd = end_i; + for (int j = start_i; j <= end_i; j++) { + double dest_start = FXSYS_Div((FX_FLOAT)(j)-base, scale); + double dest_end = FXSYS_Div((FX_FLOAT)(j + 1) - base, scale); + if (dest_start > dest_end) { + double temp = dest_start; + dest_start = dest_end; + dest_end = temp; + } + double area_start = dest_start > (FX_FLOAT)(dest_pixel) + ? dest_start + : (FX_FLOAT)(dest_pixel); + double area_end = dest_end > (FX_FLOAT)(dest_pixel + 1) + ? (FX_FLOAT)(dest_pixel + 1) + : dest_end; + double weight = area_start >= area_end ? 0.0f : area_end - area_start; + if (weight == 0 && j == end_i) { + pixel_weights.m_SrcEnd--; + break; + } + pixel_weights.m_Weights[j - start_i] = + FXSYS_round((FX_FLOAT)(weight * 65536)); + } + } +} +void CFXCODEC_HorzTable::Calc(int dest_len, int src_len, FX_BOOL bInterpol) { + if (m_pWeightTables) { + FX_Free(m_pWeightTables); + } + double scale = (double)dest_len / (double)src_len; + m_ItemSize = sizeof(int) * 4; + int size = dest_len * m_ItemSize + 4; + m_pWeightTables = FX_Alloc(uint8_t, size); + if (m_pWeightTables == NULL) { + return; + } + FXSYS_memset(m_pWeightTables, 0, size); + if (scale > 1) { + int pre_des_col = 0; + for (int src_col = 0; src_col < src_len; src_col++) { + double des_col_f = src_col * scale; + int des_col = FXSYS_round((FX_FLOAT)des_col_f); + PixelWeight* pWeight = + (PixelWeight*)(m_pWeightTables + des_col * m_ItemSize); + pWeight->m_SrcStart = pWeight->m_SrcEnd = src_col; + pWeight->m_Weights[0] = 65536; + pWeight->m_Weights[1] = 0; + if (src_col == src_len - 1 && des_col < dest_len - 1) { + for (int des_col_index = pre_des_col + 1; des_col_index < dest_len; + des_col_index++) { + pWeight = + (PixelWeight*)(m_pWeightTables + des_col_index * m_ItemSize); + pWeight->m_SrcStart = pWeight->m_SrcEnd = src_col; + pWeight->m_Weights[0] = 65536; + pWeight->m_Weights[1] = 0; + } + return; + } + int des_col_len = des_col - pre_des_col; + for (int des_col_index = pre_des_col + 1; des_col_index < des_col; + des_col_index++) { + pWeight = (PixelWeight*)(m_pWeightTables + des_col_index * m_ItemSize); + pWeight->m_SrcStart = src_col - 1; + pWeight->m_SrcEnd = src_col; + pWeight->m_Weights[0] = + bInterpol ? FXSYS_round((FX_FLOAT)( + ((FX_FLOAT)des_col - (FX_FLOAT)des_col_index) / + (FX_FLOAT)des_col_len * 65536)) + : 65536; + pWeight->m_Weights[1] = 65536 - pWeight->m_Weights[0]; + } + pre_des_col = des_col; + } + return; + } + for (int des_col = 0; des_col < dest_len; des_col++) { + double src_col_f = des_col / scale; + int src_col = FXSYS_round((FX_FLOAT)src_col_f); + PixelWeight* pWeight = + (PixelWeight*)(m_pWeightTables + des_col * m_ItemSize); + pWeight->m_SrcStart = pWeight->m_SrcEnd = src_col; + pWeight->m_Weights[0] = 65536; + pWeight->m_Weights[1] = 0; + } +} +void CFXCODEC_VertTable::Calc(int dest_len, int src_len) { + if (m_pWeightTables) { + FX_Free(m_pWeightTables); + } + double scale = (double)dest_len / (double)src_len; + m_ItemSize = sizeof(int) * 4; + int size = dest_len * m_ItemSize + 4; + m_pWeightTables = FX_Alloc(uint8_t, size); + if (m_pWeightTables == NULL) { + return; + } + FXSYS_memset(m_pWeightTables, 0, size); + if (scale > 1) { + double step = 0.0; + int src_row = 0; + while (step < (double)dest_len) { + int start_step = (int)step; + step = scale * (++src_row); + int end_step = (int)step; + if (end_step >= dest_len) { + end_step = dest_len; + for (int des_row = start_step; des_row < end_step; des_row++) { + PixelWeight* pWeight = + (PixelWeight*)(m_pWeightTables + des_row * m_ItemSize); + pWeight->m_SrcStart = start_step; + pWeight->m_SrcEnd = start_step; + pWeight->m_Weights[0] = 65536; + pWeight->m_Weights[1] = 0; + } + return; + } + int length = end_step - start_step; + { + PixelWeight* pWeight = + (PixelWeight*)(m_pWeightTables + start_step * m_ItemSize); + pWeight->m_SrcStart = start_step; + pWeight->m_SrcEnd = start_step; + pWeight->m_Weights[0] = 65536; + pWeight->m_Weights[1] = 0; + } + for (int des_row = start_step + 1; des_row < end_step; des_row++) { + PixelWeight* pWeight = + (PixelWeight*)(m_pWeightTables + des_row * m_ItemSize); + pWeight->m_SrcStart = start_step; + pWeight->m_SrcEnd = end_step; + pWeight->m_Weights[0] = FXSYS_round((FX_FLOAT)(end_step - des_row) / + (FX_FLOAT)length * 65536); + pWeight->m_Weights[1] = 65536 - pWeight->m_Weights[0]; + } + } + } else { + for (int des_row = 0; des_row < dest_len; des_row++) { + PixelWeight* pWeight = + (PixelWeight*)(m_pWeightTables + des_row * m_ItemSize); + pWeight->m_SrcStart = des_row; + pWeight->m_SrcEnd = des_row; + pWeight->m_Weights[0] = 65536; + pWeight->m_Weights[1] = 0; + } + } +} +CCodec_ProgressiveDecoder::CCodec_ProgressiveDecoder( + CCodec_ModuleMgr* pCodecMgr) { + m_pFile = NULL; + m_pJpegContext = NULL; + m_pPngContext = NULL; + m_pGifContext = NULL; + m_pBmpContext = NULL; + m_pTiffContext = NULL; + m_pCodecMgr = NULL; + m_pSrcBuf = NULL; + m_pDecodeBuf = NULL; + m_pDeviceBitmap = NULL; + m_pSrcPalette = NULL; + m_pCodecMgr = pCodecMgr; + m_offSet = 0; + m_SrcSize = 0; + m_ScanlineSize = 0; + m_SrcWidth = m_SrcHeight = 0; + m_SrcComponents = 0; + m_SrcBPC = 0; + m_SrcPassNumber = 0; + m_clipBox = FX_RECT(0, 0, 0, 0); + m_imagType = FXCODEC_IMAGE_UNKNOWN; + m_status = FXCODEC_STATUS_DECODE_FINISH; + m_TransMethod = -1; + m_SrcRow = 0; + m_SrcFormat = FXCodec_Invalid; + m_bInterpol = TRUE; + m_FrameNumber = 0; + m_FrameCur = 0; + m_SrcPaletteNumber = 0; + m_GifPltNumber = 0; + m_GifBgIndex = 0; + m_pGifPalette = NULL; + m_GifTransIndex = -1; + m_GifFrameRect = FX_RECT(0, 0, 0, 0); + m_BmpIsTopBottom = FALSE; +} +CCodec_ProgressiveDecoder::~CCodec_ProgressiveDecoder() { + m_pFile = NULL; + if (m_pJpegContext != NULL) { + m_pCodecMgr->GetJpegModule()->Finish(m_pJpegContext); + } + if (m_pPngContext != NULL) { + m_pCodecMgr->GetPngModule()->Finish(m_pPngContext); + } + if (m_pGifContext != NULL) { + m_pCodecMgr->GetGifModule()->Finish(m_pGifContext); + } + if (m_pBmpContext != NULL) { + m_pCodecMgr->GetBmpModule()->Finish(m_pBmpContext); + } + if (m_pTiffContext != NULL) { + m_pCodecMgr->GetTiffModule()->DestroyDecoder(m_pTiffContext); + } + if (m_pSrcBuf != NULL) { + FX_Free(m_pSrcBuf); + } + if (m_pDecodeBuf != NULL) { + FX_Free(m_pDecodeBuf); + } + if (m_pSrcPalette != NULL) { + FX_Free(m_pSrcPalette); + } +} +FX_BOOL CCodec_ProgressiveDecoder::JpegReadMoreData( + ICodec_JpegModule* pJpegModule, + FXCODEC_STATUS& err_status) { + FX_DWORD dwSize = (FX_DWORD)m_pFile->GetSize(); + if (dwSize <= m_offSet) { + return FALSE; + } + dwSize = dwSize - m_offSet; + FX_DWORD dwAvail = pJpegModule->GetAvailInput(m_pJpegContext, NULL); + if (dwAvail == m_SrcSize) { + if (dwSize > FXCODEC_BLOCK_SIZE) { + dwSize = FXCODEC_BLOCK_SIZE; + } + m_SrcSize = (dwSize + dwAvail + FXCODEC_BLOCK_SIZE - 1) / + FXCODEC_BLOCK_SIZE * FXCODEC_BLOCK_SIZE; + m_pSrcBuf = FX_Realloc(uint8_t, m_pSrcBuf, m_SrcSize); + if (!m_pSrcBuf) { + err_status = FXCODEC_STATUS_ERR_MEMORY; + return FALSE; + } + } else { + FX_DWORD dwConsume = m_SrcSize - dwAvail; + if (dwAvail) { + FXSYS_memcpy(m_pSrcBuf, m_pSrcBuf + dwConsume, dwAvail); + } + if (dwSize > dwConsume) { + dwSize = dwConsume; + } + } + if (!m_pFile->ReadBlock(m_pSrcBuf + dwAvail, m_offSet, dwSize)) { + err_status = FXCODEC_STATUS_ERR_READ; + return FALSE; + } + m_offSet += dwSize; + pJpegModule->Input(m_pJpegContext, m_pSrcBuf, dwSize + dwAvail); + return TRUE; +} +FX_BOOL CCodec_ProgressiveDecoder::PngReadHeaderFunc(void* pModule, + int width, + int height, + int bpc, + int pass, + int* color_type, + double* gamma) { + CCodec_ProgressiveDecoder* pCodec = (CCodec_ProgressiveDecoder*)pModule; + if (pCodec->m_pDeviceBitmap == NULL) { + pCodec->m_SrcWidth = width; + pCodec->m_SrcHeight = height; + pCodec->m_SrcBPC = bpc; + pCodec->m_SrcPassNumber = pass; + pCodec->m_SrcComponents = + *color_type == 0 ? 1 : *color_type == 2 + ? 3 + : *color_type == 3 + ? 4 + : *color_type == 4 + ? 2 + : *color_type == 6 ? 4 : 0; + pCodec->m_clipBox = FX_RECT(0, 0, width, height); + return FALSE; + } + FXDIB_Format format = pCodec->m_pDeviceBitmap->GetFormat(); + switch (format) { + case FXDIB_1bppMask: + case FXDIB_1bppRgb: + ASSERT(FALSE); + return FALSE; + case FXDIB_8bppMask: + case FXDIB_8bppRgb: + *color_type = 0; + break; + case FXDIB_Rgb: + *color_type = 2; + break; + case FXDIB_Rgb32: + case FXDIB_Argb: + *color_type = 6; + break; + default: + ASSERT(FALSE); + return FALSE; + } + *gamma = FXCODEC_PNG_GAMMA; + return TRUE; +} +FX_BOOL CCodec_ProgressiveDecoder::PngAskScanlineBufFunc(void* pModule, + int line, + uint8_t*& src_buf) { + CCodec_ProgressiveDecoder* pCodec = (CCodec_ProgressiveDecoder*)pModule; + CFX_DIBitmap* pDIBitmap = pCodec->m_pDeviceBitmap; + ASSERT(pDIBitmap != NULL); + if (pDIBitmap == NULL) { + return FALSE; + } + if (line >= pCodec->m_clipBox.top && line < pCodec->m_clipBox.bottom) { + double scale_y = + (double)pCodec->m_sizeY / (double)pCodec->m_clipBox.Height(); + int32_t row = + (int32_t)((line - pCodec->m_clipBox.top) * scale_y) + pCodec->m_startY; + uint8_t* src_scan = (uint8_t*)pDIBitmap->GetScanline(row); + uint8_t* des_scan = pCodec->m_pDecodeBuf; + src_buf = pCodec->m_pDecodeBuf; + int32_t src_Bpp = pDIBitmap->GetBPP() >> 3; + int32_t des_Bpp = (pCodec->m_SrcFormat & 0xff) >> 3; + int32_t src_left = pCodec->m_startX; + int32_t des_left = pCodec->m_clipBox.left; + src_scan += src_left * src_Bpp; + des_scan += des_left * des_Bpp; + for (int32_t src_col = 0; src_col < pCodec->m_sizeX; src_col++) { + PixelWeight* pPixelWeights = + pCodec->m_WeightHorzOO.GetPixelWeight(src_col); + if (pPixelWeights->m_SrcStart != pPixelWeights->m_SrcEnd) { + continue; + } + switch (pDIBitmap->GetFormat()) { + case FXDIB_1bppMask: + case FXDIB_1bppRgb: + ASSERT(FALSE); + return FALSE; + case FXDIB_8bppMask: + case FXDIB_8bppRgb: { + if (pDIBitmap->GetPalette() != NULL) { + return FALSE; + } + FX_DWORD des_g = 0; + des_g += pPixelWeights->m_Weights[0] * src_scan[src_col]; + des_scan[pPixelWeights->m_SrcStart] = (uint8_t)(des_g >> 16); + } break; + case FXDIB_Rgb: + case FXDIB_Rgb32: { + FX_DWORD des_b = 0, des_g = 0, des_r = 0; + const uint8_t* p = src_scan + src_col * src_Bpp; + des_b += pPixelWeights->m_Weights[0] * (*p++); + des_g += pPixelWeights->m_Weights[0] * (*p++); + des_r += pPixelWeights->m_Weights[0] * (*p); + uint8_t* pDes = &des_scan[pPixelWeights->m_SrcStart * des_Bpp]; + *pDes++ = (uint8_t)((des_b) >> 16); + *pDes++ = (uint8_t)((des_g) >> 16); + *pDes = (uint8_t)((des_r) >> 16); + } break; + case FXDIB_Argb: { + FX_DWORD des_r = 0, des_g = 0, des_b = 0; + const uint8_t* p = src_scan + src_col * src_Bpp; + des_b += pPixelWeights->m_Weights[0] * (*p++); + des_g += pPixelWeights->m_Weights[0] * (*p++); + des_r += pPixelWeights->m_Weights[0] * (*p++); + uint8_t* pDes = &des_scan[pPixelWeights->m_SrcStart * des_Bpp]; + *pDes++ = (uint8_t)((des_b) >> 16); + *pDes++ = (uint8_t)((des_g) >> 16); + *pDes++ = (uint8_t)((des_r) >> 16); + *pDes = *p; + } break; + default: + return FALSE; + } + } + } + return TRUE; +} +void CCodec_ProgressiveDecoder::PngOneOneMapResampleHorz( + CFX_DIBitmap* pDeviceBitmap, + int32_t des_line, + uint8_t* src_scan, + FXCodec_Format src_format) { + uint8_t* des_scan = (uint8_t*)pDeviceBitmap->GetScanline(des_line); + int32_t src_Bpp = (m_SrcFormat & 0xff) >> 3; + int32_t des_Bpp = pDeviceBitmap->GetBPP() >> 3; + int32_t src_left = m_clipBox.left; + int32_t des_left = m_startX; + src_scan += src_left * src_Bpp; + des_scan += des_left * des_Bpp; + for (int32_t des_col = 0; des_col < m_sizeX; des_col++) { + PixelWeight* pPixelWeights = m_WeightHorzOO.GetPixelWeight(des_col); + switch (pDeviceBitmap->GetFormat()) { + case FXDIB_1bppMask: + case FXDIB_1bppRgb: + ASSERT(FALSE); + return; + case FXDIB_8bppMask: + case FXDIB_8bppRgb: { + if (pDeviceBitmap->GetPalette() != NULL) { + return; + } + FX_DWORD des_g = 0; + des_g += + pPixelWeights->m_Weights[0] * src_scan[pPixelWeights->m_SrcStart]; + des_g += + pPixelWeights->m_Weights[1] * src_scan[pPixelWeights->m_SrcEnd]; + *des_scan++ = (uint8_t)(des_g >> 16); + } break; + case FXDIB_Rgb: + case FXDIB_Rgb32: { + FX_DWORD des_b = 0, des_g = 0, des_r = 0; + const uint8_t* p = src_scan; + p = src_scan + pPixelWeights->m_SrcStart * src_Bpp; + des_b += pPixelWeights->m_Weights[0] * (*p++); + des_g += pPixelWeights->m_Weights[0] * (*p++); + des_r += pPixelWeights->m_Weights[0] * (*p); + p = src_scan + pPixelWeights->m_SrcEnd * src_Bpp; + des_b += pPixelWeights->m_Weights[1] * (*p++); + des_g += pPixelWeights->m_Weights[1] * (*p++); + des_r += pPixelWeights->m_Weights[1] * (*p); + *des_scan++ = (uint8_t)((des_b) >> 16); + *des_scan++ = (uint8_t)((des_g) >> 16); + *des_scan++ = (uint8_t)((des_r) >> 16); + des_scan += des_Bpp - 3; + } break; + case FXDIB_Argb: { + FX_DWORD des_a = 0, des_b = 0, des_g = 0, des_r = 0; + const uint8_t* p = src_scan; + p = src_scan + pPixelWeights->m_SrcStart * src_Bpp; + des_b += pPixelWeights->m_Weights[0] * (*p++); + des_g += pPixelWeights->m_Weights[0] * (*p++); + des_r += pPixelWeights->m_Weights[0] * (*p++); + des_a += pPixelWeights->m_Weights[0] * (*p); + p = src_scan + pPixelWeights->m_SrcEnd * src_Bpp; + des_b += pPixelWeights->m_Weights[1] * (*p++); + des_g += pPixelWeights->m_Weights[1] * (*p++); + des_r += pPixelWeights->m_Weights[1] * (*p++); + des_a += pPixelWeights->m_Weights[1] * (*p); + *des_scan++ = (uint8_t)((des_b) >> 16); + *des_scan++ = (uint8_t)((des_g) >> 16); + *des_scan++ = (uint8_t)((des_r) >> 16); + *des_scan++ = (uint8_t)((des_a) >> 16); + } break; + default: + return; + } + } +} +void CCodec_ProgressiveDecoder::PngFillScanlineBufCompletedFunc(void* pModule, + int pass, + int line) { + CCodec_ProgressiveDecoder* pCodec = (CCodec_ProgressiveDecoder*)pModule; + CFX_DIBitmap* pDIBitmap = pCodec->m_pDeviceBitmap; + ASSERT(pDIBitmap != NULL); + int src_top = pCodec->m_clipBox.top; + int src_bottom = pCodec->m_clipBox.bottom; + int des_top = pCodec->m_startY; + int src_hei = pCodec->m_clipBox.Height(); + int des_hei = pCodec->m_sizeY; + if (line >= src_top && line < src_bottom) { + double scale_y = (double)des_hei / (double)src_hei; + int src_row = line - src_top; + int des_row = (int)(src_row * scale_y) + des_top; + if (des_row >= des_top + des_hei) { + return; + } + pCodec->PngOneOneMapResampleHorz(pDIBitmap, des_row, pCodec->m_pDecodeBuf, + pCodec->m_SrcFormat); + if (pCodec->m_SrcPassNumber == 1 && scale_y > 1.0) { + pCodec->ResampleVert(pDIBitmap, scale_y, des_row); + return; + } + if (pass == 6 && scale_y > 1.0) { + pCodec->ResampleVert(pDIBitmap, scale_y, des_row); + } + } +} +FX_BOOL CCodec_ProgressiveDecoder::GifReadMoreData(ICodec_GifModule* pGifModule, + FXCODEC_STATUS& err_status) { + FX_DWORD dwSize = (FX_DWORD)m_pFile->GetSize(); + if (dwSize <= m_offSet) { + return FALSE; + } + dwSize = dwSize - m_offSet; + FX_DWORD dwAvail = pGifModule->GetAvailInput(m_pGifContext, NULL); + if (dwAvail == m_SrcSize) { + if (dwSize > FXCODEC_BLOCK_SIZE) { + dwSize = FXCODEC_BLOCK_SIZE; + } + m_SrcSize = (dwSize + dwAvail + FXCODEC_BLOCK_SIZE - 1) / + FXCODEC_BLOCK_SIZE * FXCODEC_BLOCK_SIZE; + m_pSrcBuf = FX_Realloc(uint8_t, m_pSrcBuf, m_SrcSize); + if (!m_pSrcBuf) { + err_status = FXCODEC_STATUS_ERR_MEMORY; + return FALSE; + } + } else { + FX_DWORD dwConsume = m_SrcSize - dwAvail; + if (dwAvail) { + FXSYS_memcpy(m_pSrcBuf, m_pSrcBuf + dwConsume, dwAvail); + } + if (dwSize > dwConsume) { + dwSize = dwConsume; + } + } + if (!m_pFile->ReadBlock(m_pSrcBuf + dwAvail, m_offSet, dwSize)) { + err_status = FXCODEC_STATUS_ERR_READ; + return FALSE; + } + m_offSet += dwSize; + pGifModule->Input(m_pGifContext, m_pSrcBuf, dwSize + dwAvail); + return TRUE; +} +void CCodec_ProgressiveDecoder::GifRecordCurrentPositionCallback( + void* pModule, + FX_DWORD& cur_pos) { + CCodec_ProgressiveDecoder* pCodec = (CCodec_ProgressiveDecoder*)pModule; + FX_DWORD remain_size = + pCodec->m_pCodecMgr->GetGifModule()->GetAvailInput(pCodec->m_pGifContext); + cur_pos = pCodec->m_offSet - remain_size; +} +uint8_t* CCodec_ProgressiveDecoder::GifAskLocalPaletteBufCallback( + void* pModule, + int32_t frame_num, + int32_t pal_size) { + return FX_Alloc(uint8_t, pal_size); +} +FX_BOOL CCodec_ProgressiveDecoder::GifInputRecordPositionBufCallback( + void* pModule, + FX_DWORD rcd_pos, + const FX_RECT& img_rc, + int32_t pal_num, + void* pal_ptr, + int32_t delay_time, + FX_BOOL user_input, + int32_t trans_index, + int32_t disposal_method, + FX_BOOL interlace) { + CCodec_ProgressiveDecoder* pCodec = (CCodec_ProgressiveDecoder*)pModule; + pCodec->m_offSet = rcd_pos; + FXCODEC_STATUS error_status = FXCODEC_STATUS_ERROR; + if (!pCodec->GifReadMoreData(pCodec->m_pCodecMgr->GetGifModule(), + error_status)) { + return FALSE; + } + uint8_t* pPalette = NULL; + if (pal_num != 0 && pal_ptr) { + pPalette = (uint8_t*)pal_ptr; + } else { + pal_num = pCodec->m_GifPltNumber; + pPalette = pCodec->m_pGifPalette; + } + if (pCodec->m_pSrcPalette == NULL) { + pCodec->m_pSrcPalette = FX_Alloc(FX_ARGB, pal_num); + } else if (pal_num > pCodec->m_SrcPaletteNumber) { + pCodec->m_pSrcPalette = FX_Realloc(FX_ARGB, pCodec->m_pSrcPalette, pal_num); + } + if (pCodec->m_pSrcPalette == NULL) { + return FALSE; + } + pCodec->m_SrcPaletteNumber = pal_num; + for (int i = 0; i < pal_num; i++) { + FX_DWORD j = i * 3; + pCodec->m_pSrcPalette[i] = + ArgbEncode(0xff, pPalette[j], pPalette[j + 1], pPalette[j + 2]); + } + pCodec->m_GifTransIndex = trans_index; + pCodec->m_GifFrameRect = img_rc; + pCodec->m_SrcPassNumber = interlace ? 4 : 1; + int32_t pal_index = pCodec->m_GifBgIndex; + CFX_DIBitmap* pDevice = pCodec->m_pDeviceBitmap; + if (trans_index >= pal_num) { + trans_index = -1; + } + if (trans_index != -1) { + pCodec->m_pSrcPalette[trans_index] &= 0x00ffffff; + if (pDevice->HasAlpha()) { + pal_index = trans_index; + } + } + int startX = pCodec->m_startX; + int startY = pCodec->m_startY; + int sizeX = pCodec->m_sizeX; + int sizeY = pCodec->m_sizeY; + int Bpp = pDevice->GetBPP() / 8; + FX_ARGB argb = pCodec->m_pSrcPalette[pal_index]; + for (int row = 0; row < sizeY; row++) { + uint8_t* pScanline = + (uint8_t*)pDevice->GetScanline(row + startY) + startX * Bpp; + switch (pCodec->m_TransMethod) { + case 3: { + uint8_t gray = + FXRGB2GRAY(FXARGB_R(argb), FXARGB_G(argb), FXARGB_B(argb)); + FXSYS_memset(pScanline, gray, sizeX); + break; + } + case 8: { + for (int col = 0; col < sizeX; col++) { + *pScanline++ = FXARGB_B(argb); + *pScanline++ = FXARGB_G(argb); + *pScanline++ = FXARGB_R(argb); + pScanline += Bpp - 3; + } + break; + } + case 12: { + for (int col = 0; col < sizeX; col++) { + FXARGB_SETDIB(pScanline, argb); + pScanline += 4; + } + break; + } + } + } + return TRUE; +} +void CCodec_ProgressiveDecoder::GifReadScanlineCallback(void* pModule, + int32_t row_num, + uint8_t* row_buf) { + CCodec_ProgressiveDecoder* pCodec = (CCodec_ProgressiveDecoder*)pModule; + CFX_DIBitmap* pDIBitmap = pCodec->m_pDeviceBitmap; + ASSERT(pDIBitmap != NULL); + int32_t img_width = pCodec->m_GifFrameRect.Width(); + if (!pDIBitmap->HasAlpha()) { + uint8_t* byte_ptr = row_buf; + for (int i = 0; i < img_width; i++) { + if (*byte_ptr == pCodec->m_GifTransIndex) { + *byte_ptr = pCodec->m_GifBgIndex; + } + byte_ptr++; + } + } + int32_t pal_index = pCodec->m_GifBgIndex; + if (pCodec->m_GifTransIndex != -1 && pCodec->m_pDeviceBitmap->HasAlpha()) { + pal_index = pCodec->m_GifTransIndex; + } + FXSYS_memset(pCodec->m_pDecodeBuf, pal_index, pCodec->m_SrcWidth); + FX_BOOL bLastPass = (row_num % 2) == 1; + int32_t line = row_num + pCodec->m_GifFrameRect.top; + int32_t left = pCodec->m_GifFrameRect.left; + FXSYS_memcpy(pCodec->m_pDecodeBuf + left, row_buf, img_width); + int src_top = pCodec->m_clipBox.top; + int src_bottom = pCodec->m_clipBox.bottom; + int des_top = pCodec->m_startY; + int src_hei = pCodec->m_clipBox.Height(); + int des_hei = pCodec->m_sizeY; + if (line >= src_top && line < src_bottom) { + double scale_y = (double)des_hei / (double)src_hei; + int src_row = line - src_top; + int des_row = (int)(src_row * scale_y) + des_top; + if (des_row >= des_top + des_hei) { + return; + } + pCodec->ReSampleScanline(pDIBitmap, des_row, pCodec->m_pDecodeBuf, + pCodec->m_SrcFormat); + if (scale_y > 1.0 && + (!pCodec->m_bInterpol || pCodec->m_SrcPassNumber == 1)) { + pCodec->ResampleVert(pDIBitmap, scale_y, des_row); + return; + } + if (scale_y > 1.0) { + int des_bottom = des_top + pCodec->m_sizeY; + int des_Bpp = pDIBitmap->GetBPP() >> 3; + FX_DWORD des_ScanOffet = pCodec->m_startX * des_Bpp; + if (des_row + (int)scale_y >= des_bottom - 1) { + uint8_t* scan_src = + (uint8_t*)pDIBitmap->GetScanline(des_row) + des_ScanOffet; + int cur_row = des_row; + while (++cur_row < des_bottom) { + uint8_t* scan_des = + (uint8_t*)pDIBitmap->GetScanline(cur_row) + des_ScanOffet; + FX_DWORD size = pCodec->m_sizeX * des_Bpp; + FXSYS_memcpy(scan_des, scan_src, size); + } + } + if (bLastPass) { + pCodec->GifDoubleLineResampleVert(pDIBitmap, scale_y, des_row); + } + } + } +} +void CCodec_ProgressiveDecoder::GifDoubleLineResampleVert( + CFX_DIBitmap* pDeviceBitmap, + double scale_y, + int des_row) { + int des_Bpp = pDeviceBitmap->GetBPP() >> 3; + FX_DWORD des_ScanOffet = m_startX * des_Bpp; + int des_top = m_startY; + int des_row_1 = des_row - int(2 * scale_y); + if (des_row_1 < des_top) { + des_row_1 = des_top; + } + for (; des_row_1 < des_row; des_row_1++) { + uint8_t* scan_des = + (uint8_t*)pDeviceBitmap->GetScanline(des_row_1) + des_ScanOffet; + PixelWeight* pWeight = m_WeightVert.GetPixelWeight(des_row_1 - des_top); + const uint8_t* scan_src1 = + pDeviceBitmap->GetScanline(pWeight->m_SrcStart + des_top) + + des_ScanOffet; + const uint8_t* scan_src2 = + pDeviceBitmap->GetScanline(pWeight->m_SrcEnd + des_top) + des_ScanOffet; + for (int des_col = 0; des_col < m_sizeX; des_col++) { + switch (pDeviceBitmap->GetFormat()) { + case FXDIB_Invalid: + case FXDIB_1bppMask: + case FXDIB_1bppRgb: + return; + case FXDIB_8bppMask: + case FXDIB_8bppRgb: { + if (pDeviceBitmap->GetPalette() != NULL) { + return; + } + int des_g = 0; + des_g += pWeight->m_Weights[0] * (*scan_src1++); + des_g += pWeight->m_Weights[1] * (*scan_src2++); + *scan_des++ = (uint8_t)(des_g >> 16); + } break; + case FXDIB_Rgb: + case FXDIB_Rgb32: { + FX_DWORD des_b = 0, des_g = 0, des_r = 0; + des_b += pWeight->m_Weights[0] * (*scan_src1++); + des_g += pWeight->m_Weights[0] * (*scan_src1++); + des_r += pWeight->m_Weights[0] * (*scan_src1++); + scan_src1 += des_Bpp - 3; + des_b += pWeight->m_Weights[1] * (*scan_src2++); + des_g += pWeight->m_Weights[1] * (*scan_src2++); + des_r += pWeight->m_Weights[1] * (*scan_src2++); + scan_src2 += des_Bpp - 3; + *scan_des++ = (uint8_t)((des_b) >> 16); + *scan_des++ = (uint8_t)((des_g) >> 16); + *scan_des++ = (uint8_t)((des_r) >> 16); + scan_des += des_Bpp - 3; + } break; + case FXDIB_Argb: { + FX_DWORD des_a = 0, des_b = 0, des_g = 0, des_r = 0; + des_b += pWeight->m_Weights[0] * (*scan_src1++); + des_g += pWeight->m_Weights[0] * (*scan_src1++); + des_r += pWeight->m_Weights[0] * (*scan_src1++); + des_a += pWeight->m_Weights[0] * (*scan_src1++); + des_b += pWeight->m_Weights[1] * (*scan_src2++); + des_g += pWeight->m_Weights[1] * (*scan_src2++); + des_r += pWeight->m_Weights[1] * (*scan_src2++); + des_a += pWeight->m_Weights[1] * (*scan_src2++); + *scan_des++ = (uint8_t)((des_b) >> 16); + *scan_des++ = (uint8_t)((des_g) >> 16); + *scan_des++ = (uint8_t)((des_r) >> 16); + *scan_des++ = (uint8_t)((des_a) >> 16); + } break; + default: + return; + } + } + } + int des_bottom = des_top + m_sizeY - 1; + if (des_row + (int)(2 * scale_y) >= des_bottom && + des_row + (int)scale_y < des_bottom) { + GifDoubleLineResampleVert(pDeviceBitmap, scale_y, des_row + (int)scale_y); + } +} +FX_BOOL CCodec_ProgressiveDecoder::BmpReadMoreData(ICodec_BmpModule* pBmpModule, + FXCODEC_STATUS& err_status) { + FX_DWORD dwSize = (FX_DWORD)m_pFile->GetSize(); + if (dwSize <= m_offSet) { + return FALSE; + } + dwSize = dwSize - m_offSet; + FX_DWORD dwAvail = pBmpModule->GetAvailInput(m_pBmpContext, NULL); + if (dwAvail == m_SrcSize) { + if (dwSize > FXCODEC_BLOCK_SIZE) { + dwSize = FXCODEC_BLOCK_SIZE; + } + m_SrcSize = (dwSize + dwAvail + FXCODEC_BLOCK_SIZE - 1) / + FXCODEC_BLOCK_SIZE * FXCODEC_BLOCK_SIZE; + m_pSrcBuf = FX_Realloc(uint8_t, m_pSrcBuf, m_SrcSize); + if (!m_pSrcBuf) { + err_status = FXCODEC_STATUS_ERR_MEMORY; + return FALSE; + } + } else { + FX_DWORD dwConsume = m_SrcSize - dwAvail; + if (dwAvail) { + FXSYS_memcpy(m_pSrcBuf, m_pSrcBuf + dwConsume, dwAvail); + } + if (dwSize > dwConsume) { + dwSize = dwConsume; + } + } + if (!m_pFile->ReadBlock(m_pSrcBuf + dwAvail, m_offSet, dwSize)) { + err_status = FXCODEC_STATUS_ERR_READ; + return FALSE; + } + m_offSet += dwSize; + pBmpModule->Input(m_pBmpContext, m_pSrcBuf, dwSize + dwAvail); + return TRUE; +} +FX_BOOL CCodec_ProgressiveDecoder::BmpInputImagePositionBufCallback( + void* pModule, + FX_DWORD rcd_pos) { + CCodec_ProgressiveDecoder* pCodec = (CCodec_ProgressiveDecoder*)pModule; + pCodec->m_offSet = rcd_pos; + FXCODEC_STATUS error_status = FXCODEC_STATUS_ERROR; + if (!pCodec->BmpReadMoreData(pCodec->m_pCodecMgr->GetBmpModule(), + error_status)) { + return FALSE; + } + return TRUE; +} +void CCodec_ProgressiveDecoder::BmpReadScanlineCallback(void* pModule, + int32_t row_num, + uint8_t* row_buf) { + CCodec_ProgressiveDecoder* pCodec = (CCodec_ProgressiveDecoder*)pModule; + CFX_DIBitmap* pDIBitmap = pCodec->m_pDeviceBitmap; + ASSERT(pDIBitmap != NULL); + FXSYS_memcpy(pCodec->m_pDecodeBuf, row_buf, pCodec->m_ScanlineSize); + int src_top = pCodec->m_clipBox.top; + int src_bottom = pCodec->m_clipBox.bottom; + int des_top = pCodec->m_startY; + int src_hei = pCodec->m_clipBox.Height(); + int des_hei = pCodec->m_sizeY; + if (row_num >= src_top && row_num < src_bottom) { + double scale_y = (double)des_hei / (double)src_hei; + int src_row = row_num - src_top; + int des_row = (int)(src_row * scale_y) + des_top; + if (des_row >= des_top + des_hei) { + return; + } + pCodec->ReSampleScanline(pDIBitmap, des_row, pCodec->m_pDecodeBuf, + pCodec->m_SrcFormat); + if (scale_y > 1.0) { + if (pCodec->m_BmpIsTopBottom || !pCodec->m_bInterpol) { + pCodec->ResampleVert(pDIBitmap, scale_y, des_row); + return; + } else { + pCodec->ResampleVertBT(pDIBitmap, scale_y, des_row); + } + } + } +} +void CCodec_ProgressiveDecoder::ResampleVertBT(CFX_DIBitmap* pDeviceBitmap, + double scale_y, + int des_row) { + int des_Bpp = pDeviceBitmap->GetBPP() >> 3; + FX_DWORD des_ScanOffet = m_startX * des_Bpp; + int des_top = m_startY; + int des_bottom = m_startY + m_sizeY; + int des_row_1 = des_row + int(scale_y); + if (des_row_1 >= des_bottom - 1) { + uint8_t* scan_src = + (uint8_t*)pDeviceBitmap->GetScanline(des_row) + des_ScanOffet; + while (++des_row < des_bottom) { + uint8_t* scan_des = + (uint8_t*)pDeviceBitmap->GetScanline(des_row) + des_ScanOffet; + FX_DWORD size = m_sizeX * des_Bpp; + FXSYS_memcpy(scan_des, scan_src, size); + } + return; + } + for (; des_row_1 > des_row; des_row_1--) { + uint8_t* scan_des = + (uint8_t*)pDeviceBitmap->GetScanline(des_row_1) + des_ScanOffet; + PixelWeight* pWeight = m_WeightVert.GetPixelWeight(des_row_1 - des_top); + const uint8_t* scan_src1 = + pDeviceBitmap->GetScanline(pWeight->m_SrcStart + des_top) + + des_ScanOffet; + const uint8_t* scan_src2 = + pDeviceBitmap->GetScanline(pWeight->m_SrcEnd + des_top) + des_ScanOffet; + for (int des_col = 0; des_col < m_sizeX; des_col++) { + switch (pDeviceBitmap->GetFormat()) { + case FXDIB_Invalid: + case FXDIB_1bppMask: + case FXDIB_1bppRgb: + return; + case FXDIB_8bppMask: + case FXDIB_8bppRgb: { + if (pDeviceBitmap->GetPalette() != NULL) { + return; + } + int des_g = 0; + des_g += pWeight->m_Weights[0] * (*scan_src1++); + des_g += pWeight->m_Weights[1] * (*scan_src2++); + *scan_des++ = (uint8_t)(des_g >> 16); + } break; + case FXDIB_Rgb: + case FXDIB_Rgb32: { + FX_DWORD des_b = 0, des_g = 0, des_r = 0; + des_b += pWeight->m_Weights[0] * (*scan_src1++); + des_g += pWeight->m_Weights[0] * (*scan_src1++); + des_r += pWeight->m_Weights[0] * (*scan_src1++); + scan_src1 += des_Bpp - 3; + des_b += pWeight->m_Weights[1] * (*scan_src2++); + des_g += pWeight->m_Weights[1] * (*scan_src2++); + des_r += pWeight->m_Weights[1] * (*scan_src2++); + scan_src2 += des_Bpp - 3; + *scan_des++ = (uint8_t)((des_b) >> 16); + *scan_des++ = (uint8_t)((des_g) >> 16); + *scan_des++ = (uint8_t)((des_r) >> 16); + scan_des += des_Bpp - 3; + } break; + case FXDIB_Argb: { + FX_DWORD des_a = 0, des_b = 0, des_g = 0, des_r = 0; + des_b += pWeight->m_Weights[0] * (*scan_src1++); + des_g += pWeight->m_Weights[0] * (*scan_src1++); + des_r += pWeight->m_Weights[0] * (*scan_src1++); + des_a += pWeight->m_Weights[0] * (*scan_src1++); + des_b += pWeight->m_Weights[1] * (*scan_src2++); + des_g += pWeight->m_Weights[1] * (*scan_src2++); + des_r += pWeight->m_Weights[1] * (*scan_src2++); + des_a += pWeight->m_Weights[1] * (*scan_src2++); + *scan_des++ = (uint8_t)((des_b) >> 16); + *scan_des++ = (uint8_t)((des_g) >> 16); + *scan_des++ = (uint8_t)((des_r) >> 16); + *scan_des++ = (uint8_t)((des_a) >> 16); + } break; + default: + return; + } + } + } +} +FX_BOOL CCodec_ProgressiveDecoder::DetectImageType( + FXCODEC_IMAGE_TYPE imageType, + CFX_DIBAttribute* pAttribute) { + m_offSet = 0; + FX_DWORD size = (FX_DWORD)m_pFile->GetSize(); + if (size > FXCODEC_BLOCK_SIZE) { + size = FXCODEC_BLOCK_SIZE; + } + if (m_pSrcBuf != NULL) { + FX_Free(m_pSrcBuf); + m_pSrcBuf = NULL; + } + m_pSrcBuf = FX_Alloc(uint8_t, size); + if (m_pSrcBuf == NULL) { + m_status = FXCODEC_STATUS_ERR_MEMORY; + return FALSE; + } + FXSYS_memset(m_pSrcBuf, 0, size); + m_SrcSize = size; + switch (imageType) { + case FXCODEC_IMAGE_BMP: { + ICodec_BmpModule* pBmpModule = m_pCodecMgr->GetBmpModule(); + if (pBmpModule == NULL) { + m_status = FXCODEC_STATUS_ERR_MEMORY; + return FALSE; + } + pBmpModule->InputImagePositionBufCallback = + BmpInputImagePositionBufCallback; + pBmpModule->ReadScanlineCallback = BmpReadScanlineCallback; + m_pBmpContext = pBmpModule->Start((void*)this); + if (m_pBmpContext == NULL) { + m_status = FXCODEC_STATUS_ERR_MEMORY; + return FALSE; + } + FX_BOOL bResult = m_pFile->ReadBlock(m_pSrcBuf, 0, size); + if (!bResult) { + m_status = FXCODEC_STATUS_ERR_READ; + return FALSE; + } + m_offSet += size; + pBmpModule->Input(m_pBmpContext, m_pSrcBuf, size); + FX_DWORD* pPalette = NULL; + int32_t readResult = pBmpModule->ReadHeader( + m_pBmpContext, &m_SrcWidth, &m_SrcHeight, &m_BmpIsTopBottom, + &m_SrcComponents, &m_SrcPaletteNumber, &pPalette, pAttribute); + while (readResult == 2) { + FXCODEC_STATUS error_status = FXCODEC_STATUS_ERR_FORMAT; + if (!BmpReadMoreData(pBmpModule, error_status)) { + m_status = error_status; + return FALSE; + } + readResult = pBmpModule->ReadHeader( + m_pBmpContext, &m_SrcWidth, &m_SrcHeight, &m_BmpIsTopBottom, + &m_SrcComponents, &m_SrcPaletteNumber, &pPalette, pAttribute); + } + if (readResult == 1) { + m_SrcBPC = 8; + m_clipBox = FX_RECT(0, 0, m_SrcWidth, m_SrcHeight); + if (m_pSrcPalette != NULL) { + FX_Free(m_pSrcPalette); + m_pSrcPalette = NULL; + } + if (m_SrcPaletteNumber) { + m_pSrcPalette = FX_Alloc(FX_ARGB, m_SrcPaletteNumber); + if (m_pSrcPalette == NULL) { + m_status = FXCODEC_STATUS_ERR_MEMORY; + return FALSE; + } + FXSYS_memcpy(m_pSrcPalette, pPalette, + m_SrcPaletteNumber * sizeof(FX_DWORD)); + } + return TRUE; + } + if (m_pBmpContext != NULL) { + pBmpModule->Finish(m_pBmpContext); + m_pBmpContext = NULL; + } + m_status = FXCODEC_STATUS_ERR_FORMAT; + return FALSE; + } break; + case FXCODEC_IMAGE_JPG: { + ICodec_JpegModule* pJpegModule = m_pCodecMgr->GetJpegModule(); + if (pJpegModule == NULL) { + m_status = FXCODEC_STATUS_ERR_MEMORY; + return FALSE; + } + m_pJpegContext = pJpegModule->Start(); + if (m_pJpegContext == NULL) { + m_status = FXCODEC_STATUS_ERR_MEMORY; + return FALSE; + } + FX_BOOL bResult = m_pFile->ReadBlock(m_pSrcBuf, 0, size); + if (!bResult) { + m_status = FXCODEC_STATUS_ERR_READ; + return FALSE; + } + m_offSet += size; + pJpegModule->Input(m_pJpegContext, m_pSrcBuf, size); + int32_t readResult = + pJpegModule->ReadHeader(m_pJpegContext, &m_SrcWidth, &m_SrcHeight, + &m_SrcComponents, pAttribute); + while (readResult == 2) { + FXCODEC_STATUS error_status = FXCODEC_STATUS_ERR_FORMAT; + if (!JpegReadMoreData(pJpegModule, error_status)) { + m_status = error_status; + return FALSE; + } + readResult = + pJpegModule->ReadHeader(m_pJpegContext, &m_SrcWidth, &m_SrcHeight, + &m_SrcComponents, pAttribute); + } + if (!readResult) { + m_SrcBPC = 8; + m_clipBox = FX_RECT(0, 0, m_SrcWidth, m_SrcHeight); + return TRUE; + } + if (m_pJpegContext != NULL) { + pJpegModule->Finish(m_pJpegContext); + m_pJpegContext = NULL; + } + m_status = FXCODEC_STATUS_ERR_FORMAT; + return FALSE; + } break; + case FXCODEC_IMAGE_PNG: { + ICodec_PngModule* pPngModule = m_pCodecMgr->GetPngModule(); + if (pPngModule == NULL) { + m_status = FXCODEC_STATUS_ERR_MEMORY; + return FALSE; + } + pPngModule->ReadHeaderCallback = + CCodec_ProgressiveDecoder::PngReadHeaderFunc; + pPngModule->AskScanlineBufCallback = + CCodec_ProgressiveDecoder::PngAskScanlineBufFunc; + pPngModule->FillScanlineBufCompletedCallback = + CCodec_ProgressiveDecoder::PngFillScanlineBufCompletedFunc; + m_pPngContext = pPngModule->Start((void*)this); + if (m_pPngContext == NULL) { + m_status = FXCODEC_STATUS_ERR_MEMORY; + return FALSE; + } + FX_BOOL bResult = m_pFile->ReadBlock(m_pSrcBuf, 0, size); + if (!bResult) { + m_status = FXCODEC_STATUS_ERR_READ; + return FALSE; + } + m_offSet += size; + bResult = pPngModule->Input(m_pPngContext, m_pSrcBuf, size, pAttribute); + while (bResult) { + FX_DWORD remain_size = (FX_DWORD)m_pFile->GetSize() - m_offSet; + FX_DWORD input_size = + remain_size > FXCODEC_BLOCK_SIZE ? FXCODEC_BLOCK_SIZE : remain_size; + if (input_size == 0) { + if (m_pPngContext != NULL) { + pPngModule->Finish(m_pPngContext); + } + m_pPngContext = NULL; + m_status = FXCODEC_STATUS_ERR_FORMAT; + return FALSE; + } + if (m_pSrcBuf != NULL && input_size > m_SrcSize) { + FX_Free(m_pSrcBuf); + m_pSrcBuf = FX_Alloc(uint8_t, input_size); + if (m_pSrcBuf == NULL) { + m_status = FXCODEC_STATUS_ERR_MEMORY; + return FALSE; + } + FXSYS_memset(m_pSrcBuf, 0, input_size); + m_SrcSize = input_size; + } + bResult = m_pFile->ReadBlock(m_pSrcBuf, m_offSet, input_size); + if (!bResult) { + m_status = FXCODEC_STATUS_ERR_READ; + return FALSE; + } + m_offSet += input_size; + bResult = + pPngModule->Input(m_pPngContext, m_pSrcBuf, input_size, pAttribute); + } + ASSERT(!bResult); + if (m_pPngContext != NULL) { + pPngModule->Finish(m_pPngContext); + m_pPngContext = NULL; + } + if (m_SrcPassNumber == 0) { + m_status = FXCODEC_STATUS_ERR_FORMAT; + return FALSE; + } + } break; + case FXCODEC_IMAGE_GIF: { + ICodec_GifModule* pGifModule = m_pCodecMgr->GetGifModule(); + if (pGifModule == NULL) { + m_status = FXCODEC_STATUS_ERR_MEMORY; + return FALSE; + } + pGifModule->RecordCurrentPositionCallback = + CCodec_ProgressiveDecoder::GifRecordCurrentPositionCallback; + pGifModule->AskLocalPaletteBufCallback = + CCodec_ProgressiveDecoder::GifAskLocalPaletteBufCallback; + pGifModule->InputRecordPositionBufCallback = + CCodec_ProgressiveDecoder::GifInputRecordPositionBufCallback; + pGifModule->ReadScanlineCallback = + CCodec_ProgressiveDecoder::GifReadScanlineCallback; + m_pGifContext = pGifModule->Start((void*)this); + if (m_pGifContext == NULL) { + m_status = FXCODEC_STATUS_ERR_MEMORY; + return FALSE; + } + FX_BOOL bResult = m_pFile->ReadBlock(m_pSrcBuf, 0, size); + if (!bResult) { + m_status = FXCODEC_STATUS_ERR_READ; + return FALSE; + } + m_offSet += size; + pGifModule->Input(m_pGifContext, m_pSrcBuf, size); + m_SrcComponents = 1; + int32_t readResult = pGifModule->ReadHeader( + m_pGifContext, &m_SrcWidth, &m_SrcHeight, &m_GifPltNumber, + (void**)&m_pGifPalette, &m_GifBgIndex, nullptr); + while (readResult == 2) { + FXCODEC_STATUS error_status = FXCODEC_STATUS_ERR_FORMAT; + if (!GifReadMoreData(pGifModule, error_status)) { + m_status = error_status; + return FALSE; + } + readResult = pGifModule->ReadHeader( + m_pGifContext, &m_SrcWidth, &m_SrcHeight, &m_GifPltNumber, + (void**)&m_pGifPalette, &m_GifBgIndex, nullptr); + } + if (readResult == 1) { + m_SrcBPC = 8; + m_clipBox = FX_RECT(0, 0, m_SrcWidth, m_SrcHeight); + return TRUE; + } + if (m_pGifContext != NULL) { + pGifModule->Finish(m_pGifContext); + m_pGifContext = NULL; + } + m_status = FXCODEC_STATUS_ERR_FORMAT; + return FALSE; + } break; + case FXCODEC_IMAGE_TIF: { + ICodec_TiffModule* pTiffModule = m_pCodecMgr->GetTiffModule(); + if (pTiffModule == NULL) { + m_status = FXCODEC_STATUS_ERR_FORMAT; + return FALSE; + } + m_pTiffContext = pTiffModule->CreateDecoder(m_pFile); + if (m_pTiffContext == NULL) { + m_status = FXCODEC_STATUS_ERR_FORMAT; + return FALSE; + } + int32_t frames = 0; + pTiffModule->GetFrames(m_pTiffContext, frames); + FX_DWORD bpc; + FX_BOOL ret = pTiffModule->LoadFrameInfo( + m_pTiffContext, 0, (FX_DWORD&)m_SrcWidth, (FX_DWORD&)m_SrcHeight, + (FX_DWORD&)m_SrcComponents, bpc, pAttribute); + m_SrcComponents = 4; + m_clipBox = FX_RECT(0, 0, m_SrcWidth, m_SrcHeight); + if (!ret) { + pTiffModule->DestroyDecoder(m_pTiffContext); + (m_pTiffContext = NULL); + (m_status = FXCODEC_STATUS_ERR_FORMAT); + return FALSE; + } + } break; + default: + m_status = FXCODEC_STATUS_ERR_FORMAT; + return FALSE; + } + return TRUE; +} +FXCODEC_STATUS CCodec_ProgressiveDecoder::LoadImageInfo( + IFX_FileRead* pFile, + FXCODEC_IMAGE_TYPE imageType, + CFX_DIBAttribute* pAttribute) { + switch (m_status) { + case FXCODEC_STATUS_FRAME_READY: + case FXCODEC_STATUS_FRAME_TOBECONTINUE: + case FXCODEC_STATUS_DECODE_READY: + case FXCODEC_STATUS_DECODE_TOBECONTINUE: + return FXCODEC_STATUS_ERROR; + default:; + } + if (pFile == NULL) { + m_status = FXCODEC_STATUS_ERR_PARAMS; + m_pFile = NULL; + return m_status; + } + m_pFile = pFile; + m_offSet = 0; + m_SrcWidth = m_SrcHeight = 0; + m_SrcComponents = m_SrcBPC = 0; + m_clipBox = FX_RECT(0, 0, 0, 0); + m_startX = m_startY = 0; + m_sizeX = m_sizeY = 0; + m_SrcPassNumber = 0; + if (imageType != FXCODEC_IMAGE_UNKNOWN && + DetectImageType(imageType, pAttribute)) { + m_imagType = imageType; + m_status = FXCODEC_STATUS_FRAME_READY; + return m_status; + } + for (int type = FXCODEC_IMAGE_BMP; type < FXCODEC_IMAGE_MAX; type++) { + if (DetectImageType((FXCODEC_IMAGE_TYPE)type, pAttribute)) { + m_imagType = (FXCODEC_IMAGE_TYPE)type; + m_status = FXCODEC_STATUS_FRAME_READY; + return m_status; + } + } + m_status = FXCODEC_STATUS_ERR_FORMAT; + m_pFile = NULL; + return m_status; +} +void CCodec_ProgressiveDecoder::SetClipBox(FX_RECT* clip) { + if (m_status != FXCODEC_STATUS_FRAME_READY) { + return; + } + if (clip->IsEmpty()) { + m_clipBox = FX_RECT(0, 0, 0, 0); + return; + } + if (clip->left < 0) { + clip->left = 0; + } + if (clip->right > m_SrcWidth) { + clip->right = m_SrcWidth; + } + if (clip->top < 0) { + clip->top = 0; + } + if (clip->bottom > m_SrcHeight) { + clip->bottom = m_SrcHeight; + } + if (clip->IsEmpty()) { + m_clipBox = FX_RECT(0, 0, 0, 0); + return; + } + m_clipBox = *clip; +} +void CCodec_ProgressiveDecoder::GetDownScale(int& down_scale) { + down_scale = 1; + int ratio_w = m_clipBox.Width() / m_sizeX; + int ratio_h = m_clipBox.Height() / m_sizeY; + int ratio = (ratio_w > ratio_h) ? ratio_h : ratio_w; + if (ratio >= 8) { + down_scale = 8; + } else if (ratio >= 4) { + down_scale = 4; + } else if (ratio >= 2) { + down_scale = 2; + } + m_clipBox.left /= down_scale; + m_clipBox.right /= down_scale; + m_clipBox.top /= down_scale; + m_clipBox.bottom /= down_scale; + if (m_clipBox.right == m_clipBox.left) { + m_clipBox.right = m_clipBox.left + 1; + } + if (m_clipBox.bottom == m_clipBox.top) { + m_clipBox.bottom = m_clipBox.top + 1; + } +} +void CCodec_ProgressiveDecoder::GetTransMethod(FXDIB_Format des_format, + FXCodec_Format src_format) { + switch (des_format) { + case FXDIB_1bppMask: + case FXDIB_1bppRgb: { + switch (src_format) { + case FXCodec_1bppGray: + m_TransMethod = 0; + break; + default: + m_TransMethod = -1; + } + } break; + case FXDIB_8bppMask: + case FXDIB_8bppRgb: { + switch (src_format) { + case FXCodec_1bppGray: + m_TransMethod = 1; + break; + case FXCodec_8bppGray: + m_TransMethod = 2; + break; + case FXCodec_1bppRgb: + case FXCodec_8bppRgb: + m_TransMethod = 3; + break; + case FXCodec_Rgb: + case FXCodec_Rgb32: + case FXCodec_Argb: + m_TransMethod = 4; + break; + case FXCodec_Cmyk: + m_TransMethod = 5; + break; + default: + m_TransMethod = -1; + } + } break; + case FXDIB_Rgb: { + switch (src_format) { + case FXCodec_1bppGray: + m_TransMethod = 6; + break; + case FXCodec_8bppGray: + m_TransMethod = 7; + break; + case FXCodec_1bppRgb: + case FXCodec_8bppRgb: + m_TransMethod = 8; + break; + case FXCodec_Rgb: + case FXCodec_Rgb32: + case FXCodec_Argb: + m_TransMethod = 9; + break; + case FXCodec_Cmyk: + m_TransMethod = 10; + break; + default: + m_TransMethod = -1; + } + } break; + case FXDIB_Rgb32: + case FXDIB_Argb: { + switch (src_format) { + case FXCodec_1bppGray: + m_TransMethod = 6; + break; + case FXCodec_8bppGray: + m_TransMethod = 7; + break; + case FXCodec_1bppRgb: + case FXCodec_8bppRgb: + if (des_format == FXDIB_Argb) { + m_TransMethod = 12; + } else { + m_TransMethod = 8; + } + break; + case FXCodec_Rgb: + case FXCodec_Rgb32: + m_TransMethod = 9; + break; + case FXCodec_Cmyk: + m_TransMethod = 10; + break; + case FXCodec_Argb: + m_TransMethod = 11; + break; + default: + m_TransMethod = -1; + } + } break; + default: + m_TransMethod = -1; + } +} +void _RGB2BGR(uint8_t* buffer, int width = 1) { + if (buffer && width > 0) { + uint8_t temp; + int i = 0; + int j = 0; + for (; i < width; i++, j += 3) { + temp = buffer[j]; + buffer[j] = buffer[j + 2]; + buffer[j + 2] = temp; + } + } +} +void CCodec_ProgressiveDecoder::ReSampleScanline(CFX_DIBitmap* pDeviceBitmap, + int des_line, + uint8_t* src_scan, + FXCodec_Format src_format) { + int src_left = m_clipBox.left; + int des_left = m_startX; + uint8_t* des_scan = + pDeviceBitmap->GetBuffer() + des_line * pDeviceBitmap->GetPitch(); + int src_bpp = src_format & 0xff; + int des_bpp = pDeviceBitmap->GetBPP(); + int src_Bpp = src_bpp >> 3; + int des_Bpp = des_bpp >> 3; + src_scan += src_left * src_Bpp; + des_scan += des_left * des_Bpp; + for (int des_col = 0; des_col < m_sizeX; des_col++) { + PixelWeight* pPixelWeights = m_WeightHorz.GetPixelWeight(des_col); + switch (m_TransMethod) { + case -1: + return; + case 0: + return; + case 1: + return; + case 2: { + FX_DWORD des_g = 0; + for (int j = pPixelWeights->m_SrcStart; j <= pPixelWeights->m_SrcEnd; + j++) { + int pixel_weight = + pPixelWeights->m_Weights[j - pPixelWeights->m_SrcStart]; + des_g += pixel_weight * src_scan[j]; + } + *des_scan++ = (uint8_t)(des_g >> 16); + } break; + case 3: { + int des_r = 0, des_g = 0, des_b = 0; + for (int j = pPixelWeights->m_SrcStart; j <= pPixelWeights->m_SrcEnd; + j++) { + int pixel_weight = + pPixelWeights->m_Weights[j - pPixelWeights->m_SrcStart]; + unsigned long argb = m_pSrcPalette[src_scan[j]]; + des_r += pixel_weight * (uint8_t)(argb >> 16); + des_g += pixel_weight * (uint8_t)(argb >> 8); + des_b += pixel_weight * (uint8_t)argb; + } + *des_scan++ = + (uint8_t)FXRGB2GRAY((des_r >> 16), (des_g >> 16), (des_b >> 16)); + } break; + case 4: { + FX_DWORD des_b = 0, des_g = 0, des_r = 0; + for (int j = pPixelWeights->m_SrcStart; j <= pPixelWeights->m_SrcEnd; + j++) { + int pixel_weight = + pPixelWeights->m_Weights[j - pPixelWeights->m_SrcStart]; + const uint8_t* src_pixel = src_scan + j * src_Bpp; + des_b += pixel_weight * (*src_pixel++); + des_g += pixel_weight * (*src_pixel++); + des_r += pixel_weight * (*src_pixel); + } + *des_scan++ = + (uint8_t)FXRGB2GRAY((des_r >> 16), (des_g >> 16), (des_b >> 16)); + } break; + case 5: { + FX_DWORD des_b = 0, des_g = 0, des_r = 0; + for (int j = pPixelWeights->m_SrcStart; j <= pPixelWeights->m_SrcEnd; + j++) { + int pixel_weight = + pPixelWeights->m_Weights[j - pPixelWeights->m_SrcStart]; + const uint8_t* src_pixel = src_scan + j * src_Bpp; + uint8_t src_b = 0, src_g = 0, src_r = 0; + AdobeCMYK_to_sRGB1(255 - src_pixel[0], 255 - src_pixel[1], + 255 - src_pixel[2], 255 - src_pixel[3], src_r, + src_g, src_b); + des_b += pixel_weight * src_b; + des_g += pixel_weight * src_g; + des_r += pixel_weight * src_r; + } + *des_scan++ = + (uint8_t)FXRGB2GRAY((des_r >> 16), (des_g >> 16), (des_b >> 16)); + } break; + case 6: + return; + case 7: { + FX_DWORD des_g = 0; + for (int j = pPixelWeights->m_SrcStart; j <= pPixelWeights->m_SrcEnd; + j++) { + int pixel_weight = + pPixelWeights->m_Weights[j - pPixelWeights->m_SrcStart]; + des_g += pixel_weight * src_scan[j]; + } + FXSYS_memset(des_scan, (uint8_t)(des_g >> 16), 3); + des_scan += des_Bpp; + } break; + case 8: { + int des_r = 0, des_g = 0, des_b = 0; + for (int j = pPixelWeights->m_SrcStart; j <= pPixelWeights->m_SrcEnd; + j++) { + int pixel_weight = + pPixelWeights->m_Weights[j - pPixelWeights->m_SrcStart]; + unsigned long argb = m_pSrcPalette[src_scan[j]]; + des_r += pixel_weight * (uint8_t)(argb >> 16); + des_g += pixel_weight * (uint8_t)(argb >> 8); + des_b += pixel_weight * (uint8_t)argb; + } + *des_scan++ = (uint8_t)((des_b) >> 16); + *des_scan++ = (uint8_t)((des_g) >> 16); + *des_scan++ = (uint8_t)((des_r) >> 16); + des_scan += des_Bpp - 3; + } break; + case 12: { + if (m_pBmpContext) { + int des_r = 0, des_g = 0, des_b = 0; + for (int j = pPixelWeights->m_SrcStart; j <= pPixelWeights->m_SrcEnd; + j++) { + int pixel_weight = + pPixelWeights->m_Weights[j - pPixelWeights->m_SrcStart]; + unsigned long argb = m_pSrcPalette[src_scan[j]]; + des_r += pixel_weight * (uint8_t)(argb >> 16); + des_g += pixel_weight * (uint8_t)(argb >> 8); + des_b += pixel_weight * (uint8_t)argb; + } + *des_scan++ = (uint8_t)((des_b) >> 16); + *des_scan++ = (uint8_t)((des_g) >> 16); + *des_scan++ = (uint8_t)((des_r) >> 16); + *des_scan++ = 0xFF; + } else { + int des_a = 0, des_r = 0, des_g = 0, des_b = 0; + for (int j = pPixelWeights->m_SrcStart; j <= pPixelWeights->m_SrcEnd; + j++) { + int pixel_weight = + pPixelWeights->m_Weights[j - pPixelWeights->m_SrcStart]; + unsigned long argb = m_pSrcPalette[src_scan[j]]; + des_a += pixel_weight * (uint8_t)(argb >> 24); + des_r += pixel_weight * (uint8_t)(argb >> 16); + des_g += pixel_weight * (uint8_t)(argb >> 8); + des_b += pixel_weight * (uint8_t)argb; + } + *des_scan++ = (uint8_t)((des_b) >> 16); + *des_scan++ = (uint8_t)((des_g) >> 16); + *des_scan++ = (uint8_t)((des_r) >> 16); + *des_scan++ = (uint8_t)((des_a) >> 16); + } + } break; + case 9: { + FX_DWORD des_b = 0, des_g = 0, des_r = 0; + for (int j = pPixelWeights->m_SrcStart; j <= pPixelWeights->m_SrcEnd; + j++) { + int pixel_weight = + pPixelWeights->m_Weights[j - pPixelWeights->m_SrcStart]; + const uint8_t* src_pixel = src_scan + j * src_Bpp; + des_b += pixel_weight * (*src_pixel++); + des_g += pixel_weight * (*src_pixel++); + des_r += pixel_weight * (*src_pixel); + } + *des_scan++ = (uint8_t)((des_b) >> 16); + *des_scan++ = (uint8_t)((des_g) >> 16); + *des_scan++ = (uint8_t)((des_r) >> 16); + des_scan += des_Bpp - 3; + } break; + case 10: { + FX_DWORD des_b = 0, des_g = 0, des_r = 0; + for (int j = pPixelWeights->m_SrcStart; j <= pPixelWeights->m_SrcEnd; + j++) { + int pixel_weight = + pPixelWeights->m_Weights[j - pPixelWeights->m_SrcStart]; + const uint8_t* src_pixel = src_scan + j * src_Bpp; + uint8_t src_b = 0, src_g = 0, src_r = 0; + AdobeCMYK_to_sRGB1(255 - src_pixel[0], 255 - src_pixel[1], + 255 - src_pixel[2], 255 - src_pixel[3], src_r, + src_g, src_b); + des_b += pixel_weight * src_b; + des_g += pixel_weight * src_g; + des_r += pixel_weight * src_r; + } + *des_scan++ = (uint8_t)((des_b) >> 16); + *des_scan++ = (uint8_t)((des_g) >> 16); + *des_scan++ = (uint8_t)((des_r) >> 16); + des_scan += des_Bpp - 3; + } break; + case 11: { + FX_DWORD des_alpha = 0, des_r = 0, des_g = 0, des_b = 0; + for (int j = pPixelWeights->m_SrcStart; j <= pPixelWeights->m_SrcEnd; + j++) { + int pixel_weight = + pPixelWeights->m_Weights[j - pPixelWeights->m_SrcStart]; + const uint8_t* src_pixel = src_scan + j * src_Bpp; + pixel_weight = pixel_weight * src_pixel[3] / 255; + des_b += pixel_weight * (*src_pixel++); + des_g += pixel_weight * (*src_pixel++); + des_r += pixel_weight * (*src_pixel); + des_alpha += pixel_weight; + } + *des_scan++ = (uint8_t)((des_b) >> 16); + *des_scan++ = (uint8_t)((des_g) >> 16); + *des_scan++ = (uint8_t)((des_r) >> 16); + *des_scan++ = (uint8_t)((des_alpha * 255) >> 16); + } break; + default: + return; + } + } +} +void CCodec_ProgressiveDecoder::ResampleVert(CFX_DIBitmap* pDeviceBitmap, + double scale_y, + int des_row) { + int des_Bpp = pDeviceBitmap->GetBPP() >> 3; + FX_DWORD des_ScanOffet = m_startX * des_Bpp; + if (m_bInterpol) { + int des_top = m_startY; + int des_row_1 = des_row - int(scale_y); + if (des_row_1 < des_top) { + int des_bottom = des_top + m_sizeY; + if (des_row + (int)scale_y >= des_bottom - 1) { + uint8_t* scan_src = + (uint8_t*)pDeviceBitmap->GetScanline(des_row) + des_ScanOffet; + while (++des_row < des_bottom) { + uint8_t* scan_des = + (uint8_t*)pDeviceBitmap->GetScanline(des_row) + des_ScanOffet; + FX_DWORD size = m_sizeX * des_Bpp; + FXSYS_memcpy(scan_des, scan_src, size); + } + } + return; + } + for (; des_row_1 < des_row; des_row_1++) { + uint8_t* scan_des = + (uint8_t*)pDeviceBitmap->GetScanline(des_row_1) + des_ScanOffet; + PixelWeight* pWeight = m_WeightVert.GetPixelWeight(des_row_1 - des_top); + const uint8_t* scan_src1 = + pDeviceBitmap->GetScanline(pWeight->m_SrcStart + des_top) + + des_ScanOffet; + const uint8_t* scan_src2 = + pDeviceBitmap->GetScanline(pWeight->m_SrcEnd + des_top) + + des_ScanOffet; + for (int des_col = 0; des_col < m_sizeX; des_col++) { + switch (pDeviceBitmap->GetFormat()) { + case FXDIB_Invalid: + case FXDIB_1bppMask: + case FXDIB_1bppRgb: + return; + case FXDIB_8bppMask: + case FXDIB_8bppRgb: { + if (pDeviceBitmap->GetPalette() != NULL) { + return; + } + int des_g = 0; + des_g += pWeight->m_Weights[0] * (*scan_src1++); + des_g += pWeight->m_Weights[1] * (*scan_src2++); + *scan_des++ = (uint8_t)(des_g >> 16); + } break; + case FXDIB_Rgb: + case FXDIB_Rgb32: { + FX_DWORD des_b = 0, des_g = 0, des_r = 0; + des_b += pWeight->m_Weights[0] * (*scan_src1++); + des_g += pWeight->m_Weights[0] * (*scan_src1++); + des_r += pWeight->m_Weights[0] * (*scan_src1++); + scan_src1 += des_Bpp - 3; + des_b += pWeight->m_Weights[1] * (*scan_src2++); + des_g += pWeight->m_Weights[1] * (*scan_src2++); + des_r += pWeight->m_Weights[1] * (*scan_src2++); + scan_src2 += des_Bpp - 3; + *scan_des++ = (uint8_t)((des_b) >> 16); + *scan_des++ = (uint8_t)((des_g) >> 16); + *scan_des++ = (uint8_t)((des_r) >> 16); + scan_des += des_Bpp - 3; + } break; + case FXDIB_Argb: { + FX_DWORD des_a = 0, des_b = 0, des_g = 0, des_r = 0; + des_b += pWeight->m_Weights[0] * (*scan_src1++); + des_g += pWeight->m_Weights[0] * (*scan_src1++); + des_r += pWeight->m_Weights[0] * (*scan_src1++); + des_a += pWeight->m_Weights[0] * (*scan_src1++); + des_b += pWeight->m_Weights[1] * (*scan_src2++); + des_g += pWeight->m_Weights[1] * (*scan_src2++); + des_r += pWeight->m_Weights[1] * (*scan_src2++); + des_a += pWeight->m_Weights[1] * (*scan_src2++); + *scan_des++ = (uint8_t)((des_b) >> 16); + *scan_des++ = (uint8_t)((des_g) >> 16); + *scan_des++ = (uint8_t)((des_r) >> 16); + *scan_des++ = (uint8_t)((des_a) >> 16); + } break; + default: + return; + } + } + } + int des_bottom = des_top + m_sizeY; + if (des_row + (int)scale_y >= des_bottom - 1) { + uint8_t* scan_src = + (uint8_t*)pDeviceBitmap->GetScanline(des_row) + des_ScanOffet; + while (++des_row < des_bottom) { + uint8_t* scan_des = + (uint8_t*)pDeviceBitmap->GetScanline(des_row) + des_ScanOffet; + FX_DWORD size = m_sizeX * des_Bpp; + FXSYS_memcpy(scan_des, scan_src, size); + } + } + return; + } + int multiple = (int)FXSYS_ceil((FX_FLOAT)scale_y - 1); + if (multiple > 0) { + uint8_t* scan_src = + (uint8_t*)pDeviceBitmap->GetScanline(des_row) + des_ScanOffet; + for (int i = 1; i <= multiple; i++) { + if (des_row + i >= m_startY + m_sizeY) { + return; + } + uint8_t* scan_des = + (uint8_t*)pDeviceBitmap->GetScanline(des_row + i) + des_ScanOffet; + FX_DWORD size = m_sizeX * des_Bpp; + FXSYS_memcpy(scan_des, scan_src, size); + } + } +} +void CCodec_ProgressiveDecoder::Resample(CFX_DIBitmap* pDeviceBitmap, + int32_t src_line, + uint8_t* src_scan, + FXCodec_Format src_format) { + int src_top = m_clipBox.top; + int des_top = m_startY; + int src_hei = m_clipBox.Height(); + int des_hei = m_sizeY; + if (src_line >= src_top) { + double scale_y = (double)des_hei / (double)src_hei; + int src_row = src_line - src_top; + int des_row = (int)(src_row * scale_y) + des_top; + if (des_row >= des_top + des_hei) { + return; + } + ReSampleScanline(pDeviceBitmap, des_row, m_pDecodeBuf, src_format); + if (scale_y > 1.0) { + ResampleVert(pDeviceBitmap, scale_y, des_row); + } + } +} +FXCODEC_STATUS CCodec_ProgressiveDecoder::GetFrames(int32_t& frames, + IFX_Pause* pPause) { + if (!(m_status == FXCODEC_STATUS_FRAME_READY || + m_status == FXCODEC_STATUS_FRAME_TOBECONTINUE)) { + return FXCODEC_STATUS_ERROR; + } + switch (m_imagType) { + case FXCODEC_IMAGE_BMP: + case FXCODEC_IMAGE_JPG: + case FXCODEC_IMAGE_PNG: + case FXCODEC_IMAGE_TIF: + frames = m_FrameNumber = 1; + return m_status = FXCODEC_STATUS_DECODE_READY; + case FXCODEC_IMAGE_GIF: { + ICodec_GifModule* pGifModule = m_pCodecMgr->GetGifModule(); + while (TRUE) { + int32_t readResult = + pGifModule->LoadFrameInfo(m_pGifContext, &m_FrameNumber); + while (readResult == 2) { + FXCODEC_STATUS error_status = FXCODEC_STATUS_ERR_READ; + if (!GifReadMoreData(pGifModule, error_status)) { + return error_status; + } + if (pPause && pPause->NeedToPauseNow()) { + return m_status = FXCODEC_STATUS_FRAME_TOBECONTINUE; + } + readResult = pGifModule->LoadFrameInfo(m_pGifContext, &m_FrameNumber); + } + if (readResult == 1) { + frames = m_FrameNumber; + return m_status = FXCODEC_STATUS_DECODE_READY; + } + if (m_pGifContext != NULL) { + pGifModule->Finish(m_pGifContext); + m_pGifContext = NULL; + } + return m_status = FXCODEC_STATUS_ERROR; + } + } break; + default:; + } + return FXCODEC_STATUS_ERROR; +} +FXCODEC_STATUS CCodec_ProgressiveDecoder::StartDecode(CFX_DIBitmap* pDIBitmap, + int start_x, + int start_y, + int size_x, + int size_y, + int32_t frames, + FX_BOOL bInterpol) { + if (m_status != FXCODEC_STATUS_DECODE_READY) { + return FXCODEC_STATUS_ERROR; + } + if (pDIBitmap == NULL || pDIBitmap->GetBPP() < 8 || frames < 0 || + frames >= m_FrameNumber) { + return FXCODEC_STATUS_ERR_PARAMS; + } + m_pDeviceBitmap = pDIBitmap; + if (m_clipBox.IsEmpty()) { + return FXCODEC_STATUS_ERR_PARAMS; + } + if (size_x <= 0 || size_x > 65535 || size_y <= 0 || size_y > 65535) { + return FXCODEC_STATUS_ERR_PARAMS; + } + FX_RECT device_rc = + FX_RECT(start_x, start_y, start_x + size_x, start_y + size_y); + int32_t out_range_x = device_rc.right - pDIBitmap->GetWidth(); + int32_t out_range_y = device_rc.bottom - pDIBitmap->GetHeight(); + device_rc.Intersect( + FX_RECT(0, 0, pDIBitmap->GetWidth(), pDIBitmap->GetHeight())); + if (device_rc.IsEmpty()) { + return FXCODEC_STATUS_ERR_PARAMS; + } + m_startX = device_rc.left; + m_startY = device_rc.top; + m_sizeX = device_rc.Width(); + m_sizeY = device_rc.Height(); + m_bInterpol = bInterpol; + m_FrameCur = 0; + if (start_x < 0 || out_range_x > 0) { + FX_FLOAT scaleX = (FX_FLOAT)m_clipBox.Width() / (FX_FLOAT)size_x; + if (start_x < 0) { + m_clipBox.left -= (int32_t)FXSYS_ceil((FX_FLOAT)start_x * scaleX); + } + if (out_range_x > 0) { + m_clipBox.right -= (int32_t)FXSYS_floor((FX_FLOAT)out_range_x * scaleX); + } + } + if (start_y < 0 || out_range_y > 0) { + FX_FLOAT scaleY = (FX_FLOAT)m_clipBox.Height() / (FX_FLOAT)size_y; + if (start_y < 0) { + m_clipBox.top -= (int32_t)FXSYS_ceil((FX_FLOAT)start_y * scaleY); + } + if (out_range_y > 0) { + m_clipBox.bottom -= (int32_t)FXSYS_floor((FX_FLOAT)out_range_y * scaleY); + } + } + if (m_clipBox.IsEmpty()) { + return FXCODEC_STATUS_ERR_PARAMS; + } + switch (m_imagType) { + case FXCODEC_IMAGE_JPG: { + ICodec_JpegModule* pJpegModule = m_pCodecMgr->GetJpegModule(); + int down_scale = 1; + GetDownScale(down_scale); + FX_BOOL bStart = pJpegModule->StartScanline(m_pJpegContext, down_scale); + while (!bStart) { + FXCODEC_STATUS error_status = FXCODEC_STATUS_ERROR; + if (!JpegReadMoreData(pJpegModule, error_status)) { + m_pDeviceBitmap = NULL; + m_pFile = NULL; + return m_status = error_status; + } + bStart = pJpegModule->StartScanline(m_pJpegContext, down_scale); + } + int scanline_size = (m_SrcWidth + down_scale - 1) / down_scale; + scanline_size = (scanline_size * m_SrcComponents + 3) / 4 * 4; + if (m_pDecodeBuf != NULL) { + FX_Free(m_pDecodeBuf); + m_pDecodeBuf = NULL; + } + m_pDecodeBuf = FX_Alloc(uint8_t, scanline_size); + if (m_pDecodeBuf == NULL) { + m_pDeviceBitmap = NULL; + m_pFile = NULL; + return m_status = FXCODEC_STATUS_ERR_MEMORY; + } + FXSYS_memset(m_pDecodeBuf, 0, scanline_size); + m_WeightHorz.Calc(m_sizeX, 0, m_sizeX, m_clipBox.Width(), 0, + m_clipBox.Width(), m_bInterpol); + m_WeightVert.Calc(m_sizeY, m_clipBox.Height()); + switch (m_SrcComponents) { + case 1: + m_SrcFormat = FXCodec_8bppGray; + break; + case 3: + m_SrcFormat = FXCodec_Rgb; + break; + case 4: + m_SrcFormat = FXCodec_Cmyk; + break; + } + GetTransMethod(pDIBitmap->GetFormat(), m_SrcFormat); + return m_status = FXCODEC_STATUS_DECODE_TOBECONTINUE; + } break; + case FXCODEC_IMAGE_PNG: { + ICodec_PngModule* pPngModule = m_pCodecMgr->GetPngModule(); + if (pPngModule == NULL) { + m_pDeviceBitmap = NULL; + m_pFile = NULL; + return m_status = FXCODEC_STATUS_ERR_MEMORY; + } + if (m_pPngContext != NULL) { + pPngModule->Finish(m_pPngContext); + m_pPngContext = NULL; + } + m_pPngContext = pPngModule->Start((void*)this); + if (m_pPngContext == NULL) { + m_pDeviceBitmap = NULL; + m_pFile = NULL; + return m_status = FXCODEC_STATUS_ERR_MEMORY; + } + m_offSet = 0; + switch (m_pDeviceBitmap->GetFormat()) { + case FXDIB_8bppMask: + case FXDIB_8bppRgb: + m_SrcComponents = 1; + m_SrcFormat = FXCodec_8bppGray; + break; + case FXDIB_Rgb: + m_SrcComponents = 3; + m_SrcFormat = FXCodec_Rgb; + break; + case FXDIB_Rgb32: + case FXDIB_Argb: + m_SrcComponents = 4; + m_SrcFormat = FXCodec_Argb; + break; + default: { + m_pDeviceBitmap = NULL; + m_pFile = NULL; + return m_status = FXCODEC_STATUS_ERR_PARAMS; + } + } + GetTransMethod(m_pDeviceBitmap->GetFormat(), m_SrcFormat); + int scanline_size = (m_SrcWidth * m_SrcComponents + 3) / 4 * 4; + if (m_pDecodeBuf != NULL) { + FX_Free(m_pDecodeBuf); + m_pDecodeBuf = NULL; + } + m_pDecodeBuf = FX_Alloc(uint8_t, scanline_size); + if (m_pDecodeBuf == NULL) { + m_pDeviceBitmap = NULL; + m_pFile = NULL; + return m_status = FXCODEC_STATUS_ERR_MEMORY; + } + FXSYS_memset(m_pDecodeBuf, 0, scanline_size); + m_WeightHorzOO.Calc(m_sizeX, m_clipBox.Width(), m_bInterpol); + m_WeightVert.Calc(m_sizeY, m_clipBox.Height()); + return m_status = FXCODEC_STATUS_DECODE_TOBECONTINUE; + } break; + case FXCODEC_IMAGE_GIF: { + ICodec_GifModule* pGifModule = m_pCodecMgr->GetGifModule(); + if (pGifModule == NULL) { + m_pDeviceBitmap = NULL; + m_pFile = NULL; + return m_status = FXCODEC_STATUS_ERR_MEMORY; + } + m_SrcFormat = FXCodec_8bppRgb; + GetTransMethod(m_pDeviceBitmap->GetFormat(), m_SrcFormat); + int scanline_size = (m_SrcWidth + 3) / 4 * 4; + if (m_pDecodeBuf != NULL) { + FX_Free(m_pDecodeBuf); + m_pDecodeBuf = NULL; + } + m_pDecodeBuf = FX_Alloc(uint8_t, scanline_size); + if (m_pDecodeBuf == NULL) { + m_pDeviceBitmap = NULL; + m_pFile = NULL; + return m_status = FXCODEC_STATUS_ERR_MEMORY; + } + FXSYS_memset(m_pDecodeBuf, 0, scanline_size); + m_WeightHorz.Calc(m_sizeX, 0, m_sizeX, m_clipBox.Width(), 0, + m_clipBox.Width(), m_bInterpol); + m_WeightVert.Calc(m_sizeY, m_clipBox.Height()); + m_FrameCur = frames; + return m_status = FXCODEC_STATUS_DECODE_TOBECONTINUE; + } break; + case FXCODEC_IMAGE_BMP: { + ICodec_BmpModule* pBmpModule = m_pCodecMgr->GetBmpModule(); + if (pBmpModule == NULL) { + m_pDeviceBitmap = NULL; + m_pFile = NULL; + return m_status = FXCODEC_STATUS_ERR_MEMORY; + } + switch (m_SrcComponents) { + case 1: + m_SrcFormat = FXCodec_8bppRgb; + break; + case 3: + m_SrcFormat = FXCodec_Rgb; + break; + case 4: + m_SrcFormat = FXCodec_Rgb32; + break; + } + GetTransMethod(m_pDeviceBitmap->GetFormat(), m_SrcFormat); + m_ScanlineSize = (m_SrcWidth * m_SrcComponents + 3) / 4 * 4; + if (m_pDecodeBuf != NULL) { + FX_Free(m_pDecodeBuf); + m_pDecodeBuf = NULL; + } + m_pDecodeBuf = FX_Alloc(uint8_t, m_ScanlineSize); + if (m_pDecodeBuf == NULL) { + m_pDeviceBitmap = NULL; + m_pFile = NULL; + return m_status = FXCODEC_STATUS_ERR_MEMORY; + } + FXSYS_memset(m_pDecodeBuf, 0, m_ScanlineSize); + m_WeightHorz.Calc(m_sizeX, 0, m_sizeX, m_clipBox.Width(), 0, + m_clipBox.Width(), m_bInterpol); + m_WeightVert.Calc(m_sizeY, m_clipBox.Height()); + return m_status = FXCODEC_STATUS_DECODE_TOBECONTINUE; + } break; + case FXCODEC_IMAGE_TIF: + return m_status = FXCODEC_STATUS_DECODE_TOBECONTINUE; + default: + break; + } + return FXCODEC_STATUS_ERROR; +} +FXCODEC_STATUS CCodec_ProgressiveDecoder::ContinueDecode(IFX_Pause* pPause) { + if (m_status != FXCODEC_STATUS_DECODE_TOBECONTINUE) { + return FXCODEC_STATUS_ERROR; + } + switch (m_imagType) { + case FXCODEC_IMAGE_JPG: { + ICodec_JpegModule* pJpegModule = m_pCodecMgr->GetJpegModule(); + while (TRUE) { + FX_BOOL readRes = + pJpegModule->ReadScanline(m_pJpegContext, m_pDecodeBuf); + while (!readRes) { + FXCODEC_STATUS error_status = FXCODEC_STATUS_DECODE_FINISH; + if (!JpegReadMoreData(pJpegModule, error_status)) { + m_pDeviceBitmap = NULL; + m_pFile = NULL; + return m_status = error_status; + } + readRes = pJpegModule->ReadScanline(m_pJpegContext, m_pDecodeBuf); + } + if (m_SrcFormat == FXCodec_Rgb) { + int src_Bpp = (m_SrcFormat & 0xff) >> 3; + _RGB2BGR(m_pDecodeBuf + m_clipBox.left * src_Bpp, m_clipBox.Width()); + } + if (m_SrcRow >= m_clipBox.bottom) { + m_pDeviceBitmap = NULL; + m_pFile = NULL; + return m_status = FXCODEC_STATUS_DECODE_FINISH; + } + Resample(m_pDeviceBitmap, m_SrcRow, m_pDecodeBuf, m_SrcFormat); + m_SrcRow++; + if (pPause && pPause->NeedToPauseNow()) { + return m_status = FXCODEC_STATUS_DECODE_TOBECONTINUE; + } + } + } break; + case FXCODEC_IMAGE_PNG: { + ICodec_PngModule* pPngModule = m_pCodecMgr->GetPngModule(); + while (TRUE) { + FX_DWORD remain_size = (FX_DWORD)m_pFile->GetSize() - m_offSet; + FX_DWORD input_size = + remain_size > FXCODEC_BLOCK_SIZE ? FXCODEC_BLOCK_SIZE : remain_size; + if (input_size == 0) { + if (m_pPngContext != NULL) { + pPngModule->Finish(m_pPngContext); + } + m_pPngContext = NULL; + m_pDeviceBitmap = NULL; + m_pFile = NULL; + return m_status = FXCODEC_STATUS_DECODE_FINISH; + } + if (m_pSrcBuf != NULL && input_size > m_SrcSize) { + FX_Free(m_pSrcBuf); + m_pSrcBuf = FX_Alloc(uint8_t, input_size); + if (m_pSrcBuf == NULL) { + m_pDeviceBitmap = NULL; + m_pFile = NULL; + return m_status = FXCODEC_STATUS_ERR_MEMORY; + } + FXSYS_memset(m_pSrcBuf, 0, input_size); + m_SrcSize = input_size; + } + FX_BOOL bResult = m_pFile->ReadBlock(m_pSrcBuf, m_offSet, input_size); + if (!bResult) { + m_pDeviceBitmap = NULL; + m_pFile = NULL; + return m_status = FXCODEC_STATUS_ERR_READ; + } + m_offSet += input_size; + bResult = + pPngModule->Input(m_pPngContext, m_pSrcBuf, input_size, nullptr); + if (!bResult) { + m_pDeviceBitmap = NULL; + m_pFile = NULL; + return m_status = FXCODEC_STATUS_ERROR; + } + if (pPause && pPause->NeedToPauseNow()) { + return m_status = FXCODEC_STATUS_DECODE_TOBECONTINUE; + } + } + } break; + case FXCODEC_IMAGE_GIF: { + ICodec_GifModule* pGifModule = m_pCodecMgr->GetGifModule(); + while (TRUE) { + int32_t readRes = + pGifModule->LoadFrame(m_pGifContext, m_FrameCur, nullptr); + while (readRes == 2) { + FXCODEC_STATUS error_status = FXCODEC_STATUS_DECODE_FINISH; + if (!GifReadMoreData(pGifModule, error_status)) { + m_pDeviceBitmap = NULL; + m_pFile = NULL; + return m_status = error_status; + } + if (pPause && pPause->NeedToPauseNow()) { + return m_status = FXCODEC_STATUS_DECODE_TOBECONTINUE; + } + readRes = pGifModule->LoadFrame(m_pGifContext, m_FrameCur, nullptr); + } + if (readRes == 1) { + m_pDeviceBitmap = NULL; + m_pFile = NULL; + return m_status = FXCODEC_STATUS_DECODE_FINISH; + } + m_pDeviceBitmap = NULL; + m_pFile = NULL; + return m_status = FXCODEC_STATUS_ERROR; + } + } break; + case FXCODEC_IMAGE_BMP: { + ICodec_BmpModule* pBmpModule = m_pCodecMgr->GetBmpModule(); + while (TRUE) { + int32_t readRes = pBmpModule->LoadImage(m_pBmpContext); + while (readRes == 2) { + FXCODEC_STATUS error_status = FXCODEC_STATUS_DECODE_FINISH; + if (!BmpReadMoreData(pBmpModule, error_status)) { + m_pDeviceBitmap = NULL; + m_pFile = NULL; + return m_status = error_status; + } + if (pPause && pPause->NeedToPauseNow()) { + return m_status = FXCODEC_STATUS_DECODE_TOBECONTINUE; + } + readRes = pBmpModule->LoadImage(m_pBmpContext); + } + if (readRes == 1) { + m_pDeviceBitmap = NULL; + m_pFile = NULL; + return m_status = FXCODEC_STATUS_DECODE_FINISH; + } + m_pDeviceBitmap = NULL; + m_pFile = NULL; + return m_status = FXCODEC_STATUS_ERROR; + } + } break; + case FXCODEC_IMAGE_TIF: { + ICodec_TiffModule* pTiffModule = m_pCodecMgr->GetTiffModule(); + FX_BOOL ret = FALSE; + if (m_pDeviceBitmap->GetBPP() == 32 && + m_pDeviceBitmap->GetWidth() == m_SrcWidth && m_SrcWidth == m_sizeX && + m_pDeviceBitmap->GetHeight() == m_SrcHeight && + m_SrcHeight == m_sizeY && m_startX == 0 && m_startY == 0 && + m_clipBox.left == 0 && m_clipBox.top == 0 && + m_clipBox.right == m_SrcWidth && m_clipBox.bottom == m_SrcHeight) { + ret = pTiffModule->Decode(m_pTiffContext, m_pDeviceBitmap); + m_pDeviceBitmap = NULL; + m_pFile = NULL; + if (!ret) { + return m_status = FXCODEC_STATUS_ERROR; + } + return m_status = FXCODEC_STATUS_DECODE_FINISH; + } else { + CFX_DIBitmap* pDIBitmap = new CFX_DIBitmap; + pDIBitmap->Create(m_SrcWidth, m_SrcHeight, FXDIB_Argb); + if (pDIBitmap->GetBuffer() == NULL) { + delete pDIBitmap; + m_pDeviceBitmap = NULL; + m_pFile = NULL; + return m_status = FXCODEC_STATUS_ERR_MEMORY; + } + ret = pTiffModule->Decode(m_pTiffContext, pDIBitmap); + if (!ret) { + delete pDIBitmap; + m_pDeviceBitmap = NULL; + m_pFile = NULL; + return m_status = FXCODEC_STATUS_ERROR; + } + CFX_DIBitmap* pClipBitmap = + (m_clipBox.left == 0 && m_clipBox.top == 0 && + m_clipBox.right == m_SrcWidth && m_clipBox.bottom == m_SrcHeight) + ? pDIBitmap + : pDIBitmap->Clone(&m_clipBox); + if (pDIBitmap != pClipBitmap) { + delete pDIBitmap; + } + if (pClipBitmap == NULL) { + m_pDeviceBitmap = NULL; + m_pFile = NULL; + return m_status = FXCODEC_STATUS_ERR_MEMORY; + } + CFX_DIBitmap* pFormatBitmap = NULL; + switch (m_pDeviceBitmap->GetFormat()) { + case FXDIB_8bppRgb: + pFormatBitmap = new CFX_DIBitmap; + pFormatBitmap->Create(pClipBitmap->GetWidth(), + pClipBitmap->GetHeight(), FXDIB_8bppRgb); + break; + case FXDIB_8bppMask: + pFormatBitmap = new CFX_DIBitmap; + pFormatBitmap->Create(pClipBitmap->GetWidth(), + pClipBitmap->GetHeight(), FXDIB_8bppMask); + break; + case FXDIB_Rgb: + pFormatBitmap = new CFX_DIBitmap; + pFormatBitmap->Create(pClipBitmap->GetWidth(), + pClipBitmap->GetHeight(), FXDIB_Rgb); + break; + case FXDIB_Rgb32: + pFormatBitmap = new CFX_DIBitmap; + pFormatBitmap->Create(pClipBitmap->GetWidth(), + pClipBitmap->GetHeight(), FXDIB_Rgb32); + break; + case FXDIB_Argb: + pFormatBitmap = pClipBitmap; + break; + default:; + } + switch (m_pDeviceBitmap->GetFormat()) { + case FXDIB_8bppRgb: + case FXDIB_8bppMask: { + for (int32_t row = 0; row < pClipBitmap->GetHeight(); row++) { + uint8_t* src_line = (uint8_t*)pClipBitmap->GetScanline(row); + uint8_t* des_line = (uint8_t*)pFormatBitmap->GetScanline(row); + for (int32_t col = 0; col < pClipBitmap->GetWidth(); col++) { + uint8_t _a = 255 - src_line[3]; + uint8_t b = (src_line[0] * src_line[3] + 0xFF * _a) / 255; + uint8_t g = (src_line[1] * src_line[3] + 0xFF * _a) / 255; + uint8_t r = (src_line[2] * src_line[3] + 0xFF * _a) / 255; + *des_line++ = FXRGB2GRAY(r, g, b); + src_line += 4; + } + } + } break; + case FXDIB_Rgb: + case FXDIB_Rgb32: { + int32_t desBpp = + (m_pDeviceBitmap->GetFormat() == FXDIB_Rgb) ? 3 : 4; + for (int32_t row = 0; row < pClipBitmap->GetHeight(); row++) { + uint8_t* src_line = (uint8_t*)pClipBitmap->GetScanline(row); + uint8_t* des_line = (uint8_t*)pFormatBitmap->GetScanline(row); + for (int32_t col = 0; col < pClipBitmap->GetWidth(); col++) { + uint8_t _a = 255 - src_line[3]; + uint8_t b = (src_line[0] * src_line[3] + 0xFF * _a) / 255; + uint8_t g = (src_line[1] * src_line[3] + 0xFF * _a) / 255; + uint8_t r = (src_line[2] * src_line[3] + 0xFF * _a) / 255; + *des_line++ = b; + *des_line++ = g; + *des_line++ = r; + des_line += desBpp - 3; + src_line += 4; + } + } + } break; + default:; + } + if (pClipBitmap != pFormatBitmap) { + delete pClipBitmap; + } + if (pFormatBitmap == NULL) { + m_pDeviceBitmap = NULL; + m_pFile = NULL; + return m_status = FXCODEC_STATUS_ERR_MEMORY; + } + CFX_DIBitmap* pStrechBitmap = pFormatBitmap->StretchTo( + m_sizeX, m_sizeY, m_bInterpol ? FXDIB_INTERPOL : FXDIB_DOWNSAMPLE); + delete pFormatBitmap; + pFormatBitmap = NULL; + if (pStrechBitmap == NULL) { + m_pDeviceBitmap = NULL; + m_pFile = NULL; + return m_status = FXCODEC_STATUS_ERR_MEMORY; + } + m_pDeviceBitmap->TransferBitmap(m_startX, m_startY, m_sizeX, m_sizeY, + pStrechBitmap, 0, 0); + delete pStrechBitmap; + pStrechBitmap = NULL; + m_pDeviceBitmap = NULL; + m_pFile = NULL; + return m_status = FXCODEC_STATUS_DECODE_FINISH; + } + } break; + default: + break; + } + return FXCODEC_STATUS_ERROR; +} +ICodec_ProgressiveDecoder* CCodec_ModuleMgr::CreateProgressiveDecoder() { + return new CCodec_ProgressiveDecoder(this); +} diff --git a/core/src/fxcodec/codec/fx_codec_progress.h b/core/src/fxcodec/codec/fx_codec_progress.h index cee8b39c50..2da92c9b01 100644 --- a/core/src/fxcodec/codec/fx_codec_progress.h +++ b/core/src/fxcodec/codec/fx_codec_progress.h @@ -1,223 +1,223 @@ -// Copyright 2014 PDFium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
-
-#ifndef _FX_CODEC_PROGRESS_H_
-#define _FX_CODEC_PROGRESS_H_
-#define FXCODEC_BLOCK_SIZE 4096
-#define FXCODEC_PNG_GAMMA 2.2
-#if _FX_OS_ == _FX_MACOSX_ || _FX_OS_ == _FX_IOS_
-#undef FXCODEC_PNG_GAMMA
-#define FXCODEC_PNG_GAMMA 1.7
-#endif
-struct PixelWeight {
- int m_SrcStart;
- int m_SrcEnd;
- int m_Weights[1];
-};
-class CFXCODEC_WeightTable {
- public:
- CFXCODEC_WeightTable() { m_pWeightTables = NULL; }
- ~CFXCODEC_WeightTable() {
- if (m_pWeightTables != NULL) {
- FX_Free(m_pWeightTables);
- }
- }
-
- void Calc(int dest_len,
- int dest_min,
- int dest_max,
- int src_len,
- int src_min,
- int src_max,
- FX_BOOL bInterpol);
- PixelWeight* GetPixelWeight(int pixel) {
- return (PixelWeight*)(m_pWeightTables + (pixel - m_DestMin) * m_ItemSize);
- }
-
- int m_DestMin, m_ItemSize;
- uint8_t* m_pWeightTables;
-};
-class CFXCODEC_HorzTable {
- public:
- CFXCODEC_HorzTable() { m_pWeightTables = NULL; }
- ~CFXCODEC_HorzTable() {
- if (m_pWeightTables != NULL) {
- FX_Free(m_pWeightTables);
- }
- }
-
- void Calc(int dest_len, int src_len, FX_BOOL bInterpol);
- PixelWeight* GetPixelWeight(int pixel) {
- return (PixelWeight*)(m_pWeightTables + pixel * m_ItemSize);
- }
-
- int m_ItemSize;
- uint8_t* m_pWeightTables;
-};
-class CFXCODEC_VertTable {
- public:
- CFXCODEC_VertTable() { m_pWeightTables = NULL; }
- ~CFXCODEC_VertTable() {
- if (m_pWeightTables != NULL) {
- FX_Free(m_pWeightTables);
- }
- }
- void Calc(int dest_len, int src_len);
- PixelWeight* GetPixelWeight(int pixel) {
- return (PixelWeight*)(m_pWeightTables + pixel * m_ItemSize);
- }
- int m_ItemSize;
- uint8_t* m_pWeightTables;
-};
-enum FXCodec_Format {
- FXCodec_Invalid = 0,
- FXCodec_1bppGray = 0x101,
- FXCodec_1bppRgb = 0x001,
- FXCodec_8bppGray = 0x108,
- FXCodec_8bppRgb = 0x008,
- FXCodec_Rgb = 0x018,
- FXCodec_Rgb32 = 0x020,
- FXCodec_Argb = 0x220,
- FXCodec_Cmyk = 0x120
-};
-class CCodec_ProgressiveDecoder : public ICodec_ProgressiveDecoder {
- public:
- CCodec_ProgressiveDecoder(CCodec_ModuleMgr* pCodecMgr);
- ~CCodec_ProgressiveDecoder() override;
-
- FXCODEC_STATUS LoadImageInfo(IFX_FileRead* pFile,
- FXCODEC_IMAGE_TYPE imageType,
- CFX_DIBAttribute* pAttribute) override;
-
- FXCODEC_IMAGE_TYPE GetType() const override { return m_imagType; }
- int32_t GetWidth() const override { return m_SrcWidth; }
- int32_t GetHeight() const override { return m_SrcHeight; }
- int32_t GetNumComponents() const override { return m_SrcComponents; }
- int32_t GetBPC() const override { return m_SrcBPC; }
- void SetClipBox(FX_RECT* clip) override;
-
- FXCODEC_STATUS GetFrames(int32_t& frames, IFX_Pause* pPause) override;
- FXCODEC_STATUS StartDecode(CFX_DIBitmap* pDIBitmap,
- int start_x,
- int start_y,
- int size_x,
- int size_y,
- int32_t frames,
- FX_BOOL bInterpol) override;
-
- FXCODEC_STATUS ContinueDecode(IFX_Pause* pPause) override;
-
- protected:
- static FX_BOOL PngReadHeaderFunc(void* pModule,
- int width,
- int height,
- int bpc,
- int pass,
- int* color_type,
- double* gamma);
- static FX_BOOL PngAskScanlineBufFunc(void* pModule,
- int line,
- uint8_t*& src_buf);
- static void PngFillScanlineBufCompletedFunc(void* pModule,
- int pass,
- int line);
- static void GifRecordCurrentPositionCallback(void* pModule,
- FX_DWORD& cur_pos);
- static uint8_t* GifAskLocalPaletteBufCallback(void* pModule,
- int32_t frame_num,
- int32_t pal_size);
- static FX_BOOL GifInputRecordPositionBufCallback(void* pModule,
- FX_DWORD rcd_pos,
- const FX_RECT& img_rc,
- int32_t pal_num,
- void* pal_ptr,
- int32_t delay_time,
- FX_BOOL user_input,
- int32_t trans_index,
- int32_t disposal_method,
- FX_BOOL interlace);
- static void GifReadScanlineCallback(void* pModule,
- int32_t row_num,
- uint8_t* row_buf);
- static FX_BOOL BmpInputImagePositionBufCallback(void* pModule,
- FX_DWORD rcd_pos);
- static void BmpReadScanlineCallback(void* pModule,
- int32_t row_num,
- uint8_t* row_buf);
-
- FX_BOOL DetectImageType(FXCODEC_IMAGE_TYPE imageType,
- CFX_DIBAttribute* pAttribute);
- void GetDownScale(int& down_scale);
- void GetTransMethod(FXDIB_Format des_format, FXCodec_Format src_format);
- void ReSampleScanline(CFX_DIBitmap* pDeviceBitmap,
- int32_t des_line,
- uint8_t* src_scan,
- FXCodec_Format src_format);
- void Resample(CFX_DIBitmap* pDeviceBitmap,
- int32_t src_line,
- uint8_t* src_scan,
- FXCodec_Format src_format);
- void ResampleVert(CFX_DIBitmap* pDeviceBitmap, double scale_y, int des_row);
- FX_BOOL JpegReadMoreData(ICodec_JpegModule* pJpegModule,
- FXCODEC_STATUS& err_status);
- void PngOneOneMapResampleHorz(CFX_DIBitmap* pDeviceBitmap,
- int32_t des_line,
- uint8_t* src_scan,
- FXCodec_Format src_format);
- FX_BOOL GifReadMoreData(ICodec_GifModule* pGifModule,
- FXCODEC_STATUS& err_status);
- void GifDoubleLineResampleVert(CFX_DIBitmap* pDeviceBitmap,
- double scale_y,
- int des_row);
- FX_BOOL BmpReadMoreData(ICodec_BmpModule* pBmpModule,
- FXCODEC_STATUS& err_status);
- void ResampleVertBT(CFX_DIBitmap* pDeviceBitmap, double scale_y, int des_row);
-
- public:
- IFX_FileRead* m_pFile;
- CCodec_ModuleMgr* m_pCodecMgr;
- void* m_pJpegContext;
- void* m_pPngContext;
- void* m_pGifContext;
- void* m_pBmpContext;
- void* m_pTiffContext;
- FXCODEC_IMAGE_TYPE m_imagType;
- FX_DWORD m_offSet;
- uint8_t* m_pSrcBuf;
- FX_DWORD m_SrcSize;
- uint8_t* m_pDecodeBuf;
- int m_ScanlineSize;
- CFX_DIBitmap* m_pDeviceBitmap;
- FX_BOOL m_bInterpol;
- CFXCODEC_WeightTable m_WeightHorz;
- CFXCODEC_VertTable m_WeightVert;
- CFXCODEC_HorzTable m_WeightHorzOO;
- int m_SrcWidth;
- int m_SrcHeight;
- int m_SrcComponents;
- int m_SrcBPC;
- FX_RECT m_clipBox;
- int m_startX;
- int m_startY;
- int m_sizeX;
- int m_sizeY;
- int m_TransMethod;
- FX_ARGB* m_pSrcPalette;
- int m_SrcPaletteNumber;
- int m_SrcRow;
- FXCodec_Format m_SrcFormat;
- int m_SrcPassNumber;
- int m_FrameNumber;
- int m_FrameCur;
- int m_GifBgIndex;
- uint8_t* m_pGifPalette;
- int32_t m_GifPltNumber;
- int m_GifTransIndex;
- FX_RECT m_GifFrameRect;
- FX_BOOL m_BmpIsTopBottom;
- FXCODEC_STATUS m_status;
-};
-#endif
+// Copyright 2014 PDFium Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. + +// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com + +#ifndef _FX_CODEC_PROGRESS_H_ +#define _FX_CODEC_PROGRESS_H_ +#define FXCODEC_BLOCK_SIZE 4096 +#define FXCODEC_PNG_GAMMA 2.2 +#if _FX_OS_ == _FX_MACOSX_ || _FX_OS_ == _FX_IOS_ +#undef FXCODEC_PNG_GAMMA +#define FXCODEC_PNG_GAMMA 1.7 +#endif +struct PixelWeight { + int m_SrcStart; + int m_SrcEnd; + int m_Weights[1]; +}; +class CFXCODEC_WeightTable { + public: + CFXCODEC_WeightTable() { m_pWeightTables = NULL; } + ~CFXCODEC_WeightTable() { + if (m_pWeightTables != NULL) { + FX_Free(m_pWeightTables); + } + } + + void Calc(int dest_len, + int dest_min, + int dest_max, + int src_len, + int src_min, + int src_max, + FX_BOOL bInterpol); + PixelWeight* GetPixelWeight(int pixel) { + return (PixelWeight*)(m_pWeightTables + (pixel - m_DestMin) * m_ItemSize); + } + + int m_DestMin, m_ItemSize; + uint8_t* m_pWeightTables; +}; +class CFXCODEC_HorzTable { + public: + CFXCODEC_HorzTable() { m_pWeightTables = NULL; } + ~CFXCODEC_HorzTable() { + if (m_pWeightTables != NULL) { + FX_Free(m_pWeightTables); + } + } + + void Calc(int dest_len, int src_len, FX_BOOL bInterpol); + PixelWeight* GetPixelWeight(int pixel) { + return (PixelWeight*)(m_pWeightTables + pixel * m_ItemSize); + } + + int m_ItemSize; + uint8_t* m_pWeightTables; +}; +class CFXCODEC_VertTable { + public: + CFXCODEC_VertTable() { m_pWeightTables = NULL; } + ~CFXCODEC_VertTable() { + if (m_pWeightTables != NULL) { + FX_Free(m_pWeightTables); + } + } + void Calc(int dest_len, int src_len); + PixelWeight* GetPixelWeight(int pixel) { + return (PixelWeight*)(m_pWeightTables + pixel * m_ItemSize); + } + int m_ItemSize; + uint8_t* m_pWeightTables; +}; +enum FXCodec_Format { + FXCodec_Invalid = 0, + FXCodec_1bppGray = 0x101, + FXCodec_1bppRgb = 0x001, + FXCodec_8bppGray = 0x108, + FXCodec_8bppRgb = 0x008, + FXCodec_Rgb = 0x018, + FXCodec_Rgb32 = 0x020, + FXCodec_Argb = 0x220, + FXCodec_Cmyk = 0x120 +}; +class CCodec_ProgressiveDecoder : public ICodec_ProgressiveDecoder { + public: + CCodec_ProgressiveDecoder(CCodec_ModuleMgr* pCodecMgr); + ~CCodec_ProgressiveDecoder() override; + + FXCODEC_STATUS LoadImageInfo(IFX_FileRead* pFile, + FXCODEC_IMAGE_TYPE imageType, + CFX_DIBAttribute* pAttribute) override; + + FXCODEC_IMAGE_TYPE GetType() const override { return m_imagType; } + int32_t GetWidth() const override { return m_SrcWidth; } + int32_t GetHeight() const override { return m_SrcHeight; } + int32_t GetNumComponents() const override { return m_SrcComponents; } + int32_t GetBPC() const override { return m_SrcBPC; } + void SetClipBox(FX_RECT* clip) override; + + FXCODEC_STATUS GetFrames(int32_t& frames, IFX_Pause* pPause) override; + FXCODEC_STATUS StartDecode(CFX_DIBitmap* pDIBitmap, + int start_x, + int start_y, + int size_x, + int size_y, + int32_t frames, + FX_BOOL bInterpol) override; + + FXCODEC_STATUS ContinueDecode(IFX_Pause* pPause) override; + + protected: + static FX_BOOL PngReadHeaderFunc(void* pModule, + int width, + int height, + int bpc, + int pass, + int* color_type, + double* gamma); + static FX_BOOL PngAskScanlineBufFunc(void* pModule, + int line, + uint8_t*& src_buf); + static void PngFillScanlineBufCompletedFunc(void* pModule, + int pass, + int line); + static void GifRecordCurrentPositionCallback(void* pModule, + FX_DWORD& cur_pos); + static uint8_t* GifAskLocalPaletteBufCallback(void* pModule, + int32_t frame_num, + int32_t pal_size); + static FX_BOOL GifInputRecordPositionBufCallback(void* pModule, + FX_DWORD rcd_pos, + const FX_RECT& img_rc, + int32_t pal_num, + void* pal_ptr, + int32_t delay_time, + FX_BOOL user_input, + int32_t trans_index, + int32_t disposal_method, + FX_BOOL interlace); + static void GifReadScanlineCallback(void* pModule, + int32_t row_num, + uint8_t* row_buf); + static FX_BOOL BmpInputImagePositionBufCallback(void* pModule, + FX_DWORD rcd_pos); + static void BmpReadScanlineCallback(void* pModule, + int32_t row_num, + uint8_t* row_buf); + + FX_BOOL DetectImageType(FXCODEC_IMAGE_TYPE imageType, + CFX_DIBAttribute* pAttribute); + void GetDownScale(int& down_scale); + void GetTransMethod(FXDIB_Format des_format, FXCodec_Format src_format); + void ReSampleScanline(CFX_DIBitmap* pDeviceBitmap, + int32_t des_line, + uint8_t* src_scan, + FXCodec_Format src_format); + void Resample(CFX_DIBitmap* pDeviceBitmap, + int32_t src_line, + uint8_t* src_scan, + FXCodec_Format src_format); + void ResampleVert(CFX_DIBitmap* pDeviceBitmap, double scale_y, int des_row); + FX_BOOL JpegReadMoreData(ICodec_JpegModule* pJpegModule, + FXCODEC_STATUS& err_status); + void PngOneOneMapResampleHorz(CFX_DIBitmap* pDeviceBitmap, + int32_t des_line, + uint8_t* src_scan, + FXCodec_Format src_format); + FX_BOOL GifReadMoreData(ICodec_GifModule* pGifModule, + FXCODEC_STATUS& err_status); + void GifDoubleLineResampleVert(CFX_DIBitmap* pDeviceBitmap, + double scale_y, + int des_row); + FX_BOOL BmpReadMoreData(ICodec_BmpModule* pBmpModule, + FXCODEC_STATUS& err_status); + void ResampleVertBT(CFX_DIBitmap* pDeviceBitmap, double scale_y, int des_row); + + public: + IFX_FileRead* m_pFile; + CCodec_ModuleMgr* m_pCodecMgr; + void* m_pJpegContext; + void* m_pPngContext; + void* m_pGifContext; + void* m_pBmpContext; + void* m_pTiffContext; + FXCODEC_IMAGE_TYPE m_imagType; + FX_DWORD m_offSet; + uint8_t* m_pSrcBuf; + FX_DWORD m_SrcSize; + uint8_t* m_pDecodeBuf; + int m_ScanlineSize; + CFX_DIBitmap* m_pDeviceBitmap; + FX_BOOL m_bInterpol; + CFXCODEC_WeightTable m_WeightHorz; + CFXCODEC_VertTable m_WeightVert; + CFXCODEC_HorzTable m_WeightHorzOO; + int m_SrcWidth; + int m_SrcHeight; + int m_SrcComponents; + int m_SrcBPC; + FX_RECT m_clipBox; + int m_startX; + int m_startY; + int m_sizeX; + int m_sizeY; + int m_TransMethod; + FX_ARGB* m_pSrcPalette; + int m_SrcPaletteNumber; + int m_SrcRow; + FXCodec_Format m_SrcFormat; + int m_SrcPassNumber; + int m_FrameNumber; + int m_FrameCur; + int m_GifBgIndex; + uint8_t* m_pGifPalette; + int32_t m_GifPltNumber; + int m_GifTransIndex; + FX_RECT m_GifFrameRect; + FX_BOOL m_BmpIsTopBottom; + FXCODEC_STATUS m_status; +}; +#endif diff --git a/core/src/fxcodec/codec/fx_codec_tiff.cpp b/core/src/fxcodec/codec/fx_codec_tiff.cpp index d158c0009a..cfdc5feb97 100644 --- a/core/src/fxcodec/codec/fx_codec_tiff.cpp +++ b/core/src/fxcodec/codec/fx_codec_tiff.cpp @@ -1,544 +1,544 @@ -// Copyright 2014 PDFium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
-
-#include "core/include/fxcodec/fx_codec.h"
-#include "core/include/fxge/fx_dib.h"
-#include "codec_int.h"
-
-extern "C" {
-#include "third_party/libtiff/tiffiop.h"
-}
-
-void* IccLib_CreateTransform_sRGB(const unsigned char* pProfileData,
- unsigned int dwProfileSize,
- int nComponents,
- int intent,
- FX_DWORD dwSrcFormat = Icc_FORMAT_DEFAULT);
-void IccLib_TranslateImage(void* pTransform,
- unsigned char* pDest,
- const unsigned char* pSrc,
- int pixels);
-void IccLib_DestroyTransform(void* pTransform);
-class CCodec_TiffContext {
- public:
- CCodec_TiffContext();
- ~CCodec_TiffContext();
-
- FX_BOOL InitDecoder(IFX_FileRead* file_ptr);
- void GetFrames(int32_t& frames);
- FX_BOOL LoadFrameInfo(int32_t frame,
- FX_DWORD& width,
- FX_DWORD& height,
- FX_DWORD& comps,
- FX_DWORD& bpc,
- CFX_DIBAttribute* pAttribute);
- FX_BOOL Decode(CFX_DIBitmap* pDIBitmap);
-
- union {
- IFX_FileRead* in;
- IFX_FileStream* out;
- } io;
-
- FX_DWORD offset;
-
- TIFF* tif_ctx;
- void* icc_ctx;
- int32_t frame_num;
- int32_t frame_cur;
- FX_BOOL isDecoder;
-
- private:
- FX_BOOL isSupport(CFX_DIBitmap* pDIBitmap);
- void SetPalette(CFX_DIBitmap* pDIBitmap, uint16_t bps);
- FX_BOOL Decode1bppRGB(CFX_DIBitmap* pDIBitmap,
- int32_t height,
- int32_t width,
- uint16_t bps,
- uint16_t spp);
- FX_BOOL Decode8bppRGB(CFX_DIBitmap* pDIBitmap,
- int32_t height,
- int32_t width,
- uint16_t bps,
- uint16_t spp);
- FX_BOOL Decode24bppRGB(CFX_DIBitmap* pDIBitmap,
- int32_t height,
- int32_t width,
- uint16_t bps,
- uint16_t spp);
-};
-CCodec_TiffContext::CCodec_TiffContext() {
- offset = 0;
- frame_num = 0;
- frame_cur = 0;
- io.in = NULL;
- tif_ctx = NULL;
- icc_ctx = NULL;
- isDecoder = TRUE;
-}
-CCodec_TiffContext::~CCodec_TiffContext() {
- if (icc_ctx) {
- IccLib_DestroyTransform(icc_ctx);
- icc_ctx = NULL;
- }
- if (tif_ctx) {
- TIFFClose(tif_ctx);
- }
-}
-static tsize_t _tiff_read(thandle_t context, tdata_t buf, tsize_t length) {
- CCodec_TiffContext* pTiffContext = (CCodec_TiffContext*)context;
- FX_BOOL ret = FALSE;
- if (pTiffContext->isDecoder) {
- ret = pTiffContext->io.in->ReadBlock(buf, pTiffContext->offset, length);
- } else {
- ret = pTiffContext->io.out->ReadBlock(buf, pTiffContext->offset, length);
- }
- if (!ret) {
- return 0;
- }
- pTiffContext->offset += (FX_DWORD)length;
- return length;
-}
-static tsize_t _tiff_write(thandle_t context, tdata_t buf, tsize_t length) {
- CCodec_TiffContext* pTiffContext = (CCodec_TiffContext*)context;
- ASSERT(!pTiffContext->isDecoder);
- if (!pTiffContext->io.out->WriteBlock(buf, pTiffContext->offset, length)) {
- return 0;
- }
- pTiffContext->offset += (FX_DWORD)length;
- return length;
-}
-static toff_t _tiff_seek(thandle_t context, toff_t offset, int whence) {
- CCodec_TiffContext* pTiffContext = (CCodec_TiffContext*)context;
- switch (whence) {
- case 0:
- pTiffContext->offset = (FX_DWORD)offset;
- break;
- case 1:
- pTiffContext->offset += (FX_DWORD)offset;
- break;
- case 2:
- if (pTiffContext->isDecoder) {
- if (pTiffContext->io.in->GetSize() < (FX_FILESIZE)offset) {
- return -1;
- }
- pTiffContext->offset =
- (FX_DWORD)(pTiffContext->io.in->GetSize() - offset);
- } else {
- if (pTiffContext->io.out->GetSize() < (FX_FILESIZE)offset) {
- return -1;
- }
- pTiffContext->offset =
- (FX_DWORD)(pTiffContext->io.out->GetSize() - offset);
- }
- break;
- default:
- return -1;
- }
- ASSERT(pTiffContext->isDecoder ? (pTiffContext->offset <=
- (FX_DWORD)pTiffContext->io.in->GetSize())
- : TRUE);
- return pTiffContext->offset;
-}
-static int _tiff_close(thandle_t context) {
- return 0;
-}
-static toff_t _tiff_get_size(thandle_t context) {
- CCodec_TiffContext* pTiffContext = (CCodec_TiffContext*)context;
- return pTiffContext->isDecoder ? (toff_t)pTiffContext->io.in->GetSize()
- : (toff_t)pTiffContext->io.out->GetSize();
-}
-static int _tiff_map(thandle_t context, tdata_t*, toff_t*) {
- return 0;
-}
-static void _tiff_unmap(thandle_t context, tdata_t, toff_t) {}
-TIFF* _tiff_open(void* context, const char* mode) {
- TIFF* tif = TIFFClientOpen("Tiff Image", mode, (thandle_t)context, _tiff_read,
- _tiff_write, _tiff_seek, _tiff_close,
- _tiff_get_size, _tiff_map, _tiff_unmap);
- if (tif) {
- tif->tif_fd = (int)(intptr_t)context;
- }
- return tif;
-}
-void* _TIFFmalloc(tmsize_t size) {
- return FXMEM_DefaultAlloc(size, 0);
-}
-void _TIFFfree(void* ptr) {
- FXMEM_DefaultFree(ptr, 0);
-}
-void* _TIFFrealloc(void* ptr, tmsize_t size) {
- return FXMEM_DefaultRealloc(ptr, size, 0);
-}
-void _TIFFmemset(void* ptr, int val, tmsize_t size) {
- FXSYS_memset(ptr, val, (size_t)size);
-}
-void _TIFFmemcpy(void* des, const void* src, tmsize_t size) {
- FXSYS_memcpy(des, src, (size_t)size);
-}
-int _TIFFmemcmp(const void* ptr1, const void* ptr2, tmsize_t size) {
- return FXSYS_memcmp(ptr1, ptr2, (size_t)size);
-}
-
-TIFFErrorHandler _TIFFwarningHandler = nullptr;
-TIFFErrorHandler _TIFFerrorHandler = nullptr;
-
-int TIFFCmyk2Rgb(thandle_t context,
- uint8 c,
- uint8 m,
- uint8 y,
- uint8 k,
- uint8* r,
- uint8* g,
- uint8* b) {
- if (context == NULL) {
- return 0;
- }
- CCodec_TiffContext* p = (CCodec_TiffContext*)context;
- if (p->icc_ctx) {
- unsigned char cmyk[4], bgr[3];
- cmyk[0] = c, cmyk[1] = m, cmyk[2] = y, cmyk[3] = k;
- IccLib_TranslateImage(p->icc_ctx, bgr, cmyk, 1);
- *r = bgr[2], *g = bgr[1], *b = bgr[0];
- } else {
- AdobeCMYK_to_sRGB1(c, m, y, k, *r, *g, *b);
- }
- return 1;
-}
-FX_BOOL CCodec_TiffContext::InitDecoder(IFX_FileRead* file_ptr) {
- io.in = file_ptr;
- tif_ctx = _tiff_open(this, "r");
- if (tif_ctx == NULL) {
- return FALSE;
- }
- return TRUE;
-}
-void CCodec_TiffContext::GetFrames(int32_t& frames) {
- frames = frame_num = TIFFNumberOfDirectories(tif_ctx);
-}
-#define TIFF_EXIF_GETINFO(key, T, tag) \
- { \
- T val = (T)0; \
- TIFFGetField(tif_ctx, tag, &val); \
- if (val) { \
- (key) = FX_Alloc(uint8_t, sizeof(T)); \
- if ((key)) { \
- T* ptr = (T*)(key); \
- *ptr = val; \
- pExif->m_TagVal.SetAt(tag, (key)); \
- } \
- } \
- } \
- (key) = NULL;
-#define TIFF_EXIF_GETSTRINGINFO(key, tag) \
- { \
- FX_DWORD size = 0; \
- uint8_t* buf = NULL; \
- TIFFGetField(tif_ctx, tag, &size, &buf); \
- if (size && buf) { \
- (key) = FX_Alloc(uint8_t, size); \
- if ((key)) { \
- FXSYS_memcpy((key), buf, size); \
- pExif->m_TagVal.SetAt(tag, (key)); \
- } \
- } \
- } \
- (key) = NULL;
-
-namespace {
-
-template <class T>
-FX_BOOL Tiff_Exif_GetInfo(TIFF* tif_ctx, ttag_t tag, CFX_DIBAttribute* pAttr) {
- T val = 0;
- TIFFGetField(tif_ctx, tag, &val);
- if (!val)
- return FALSE;
- T* ptr = FX_Alloc(T, 1);
- *ptr = val;
- pAttr->m_Exif[tag] = (void*)ptr;
- return TRUE;
-}
-void Tiff_Exif_GetStringInfo(TIFF* tif_ctx,
- ttag_t tag,
- CFX_DIBAttribute* pAttr) {
- FX_CHAR* buf = nullptr;
- TIFFGetField(tif_ctx, tag, &buf);
- if (!buf)
- return;
- FX_STRSIZE size = FXSYS_strlen(buf);
- uint8_t* ptr = FX_Alloc(uint8_t, size + 1);
- FXSYS_memcpy(ptr, buf, size);
- ptr[size] = 0;
- pAttr->m_Exif[tag] = ptr;
-}
-
-} // namespace
-
-FX_BOOL CCodec_TiffContext::LoadFrameInfo(int32_t frame,
- FX_DWORD& width,
- FX_DWORD& height,
- FX_DWORD& comps,
- FX_DWORD& bpc,
- CFX_DIBAttribute* pAttribute) {
- if (!TIFFSetDirectory(tif_ctx, (uint16)frame)) {
- return FALSE;
- }
- FX_WORD tif_cs;
- FX_DWORD tif_icc_size = 0;
- uint8_t* tif_icc_buf = NULL;
- FX_WORD tif_bpc = 0;
- FX_WORD tif_cps;
- FX_DWORD tif_rps;
- width = height = comps = 0;
- TIFFGetField(tif_ctx, TIFFTAG_IMAGEWIDTH, &width);
- TIFFGetField(tif_ctx, TIFFTAG_IMAGELENGTH, &height);
- TIFFGetField(tif_ctx, TIFFTAG_SAMPLESPERPIXEL, &comps);
- TIFFGetField(tif_ctx, TIFFTAG_BITSPERSAMPLE, &tif_bpc);
- TIFFGetField(tif_ctx, TIFFTAG_PHOTOMETRIC, &tif_cs);
- TIFFGetField(tif_ctx, TIFFTAG_COMPRESSION, &tif_cps);
- TIFFGetField(tif_ctx, TIFFTAG_ROWSPERSTRIP, &tif_rps);
- TIFFGetField(tif_ctx, TIFFTAG_ICCPROFILE, &tif_icc_size, &tif_icc_buf);
- if (pAttribute) {
- pAttribute->m_wDPIUnit = FXCODEC_RESUNIT_INCH;
- if (TIFFGetField(tif_ctx, TIFFTAG_RESOLUTIONUNIT,
- &pAttribute->m_wDPIUnit)) {
- pAttribute->m_wDPIUnit -= 1;
- }
- Tiff_Exif_GetInfo<FX_WORD>(tif_ctx, TIFFTAG_ORIENTATION, pAttribute);
- if (Tiff_Exif_GetInfo<FX_FLOAT>(tif_ctx, TIFFTAG_XRESOLUTION, pAttribute)) {
- void* val = pAttribute->m_Exif[TIFFTAG_XRESOLUTION];
- FX_FLOAT fDpi = val ? *reinterpret_cast<FX_FLOAT*>(val) : 0;
- pAttribute->m_nXDPI = (int32_t)(fDpi + 0.5f);
- }
- if (Tiff_Exif_GetInfo<FX_FLOAT>(tif_ctx, TIFFTAG_YRESOLUTION, pAttribute)) {
- void* val = pAttribute->m_Exif[TIFFTAG_YRESOLUTION];
- FX_FLOAT fDpi = val ? *reinterpret_cast<FX_FLOAT*>(val) : 0;
- pAttribute->m_nYDPI = (int32_t)(fDpi + 0.5f);
- }
- Tiff_Exif_GetStringInfo(tif_ctx, TIFFTAG_IMAGEDESCRIPTION, pAttribute);
- Tiff_Exif_GetStringInfo(tif_ctx, TIFFTAG_MAKE, pAttribute);
- Tiff_Exif_GetStringInfo(tif_ctx, TIFFTAG_MODEL, pAttribute);
- }
- bpc = tif_bpc;
- if (tif_rps > height) {
- TIFFSetField(tif_ctx, TIFFTAG_ROWSPERSTRIP, tif_rps = height);
- }
- return TRUE;
-}
-void _TiffBGRA2RGBA(uint8_t* pBuf, int32_t pixel, int32_t spp) {
- for (int32_t n = 0; n < pixel; n++) {
- uint8_t tmp = pBuf[0];
- pBuf[0] = pBuf[2];
- pBuf[2] = tmp;
- pBuf += spp;
- }
-}
-FX_BOOL CCodec_TiffContext::isSupport(CFX_DIBitmap* pDIBitmap) {
- if (TIFFIsTiled(tif_ctx)) {
- return FALSE;
- }
- uint16_t photometric;
- if (!TIFFGetField(tif_ctx, TIFFTAG_PHOTOMETRIC, &photometric)) {
- return FALSE;
- }
- switch (pDIBitmap->GetBPP()) {
- case 1:
- case 8:
- if (photometric != PHOTOMETRIC_PALETTE) {
- return FALSE;
- }
- break;
- case 24:
- if (photometric != PHOTOMETRIC_RGB) {
- return FALSE;
- }
- break;
- default:
- return FALSE;
- }
- uint16_t planarconfig;
- if (!TIFFGetFieldDefaulted(tif_ctx, TIFFTAG_PLANARCONFIG, &planarconfig)) {
- return FALSE;
- }
- if (planarconfig == PLANARCONFIG_SEPARATE) {
- return FALSE;
- }
- return TRUE;
-}
-void CCodec_TiffContext::SetPalette(CFX_DIBitmap* pDIBitmap, uint16_t bps) {
- uint16_t *red_orig, *green_orig, *blue_orig;
- TIFFGetField(tif_ctx, TIFFTAG_COLORMAP, &red_orig, &green_orig, &blue_orig);
- for (int32_t i = (1L << bps) - 1; i >= 0; i--) {
-#define CVT(x) ((uint16_t)((x) >> 8))
- red_orig[i] = CVT(red_orig[i]);
- green_orig[i] = CVT(green_orig[i]);
- blue_orig[i] = CVT(blue_orig[i]);
-#undef CVT
- }
- int32_t len = 1 << bps;
- for (int32_t index = 0; index < len; index++) {
- FX_DWORD r = red_orig[index] & 0xFF;
- FX_DWORD g = green_orig[index] & 0xFF;
- FX_DWORD b = blue_orig[index] & 0xFF;
- FX_DWORD color = (uint32_t)b | ((uint32_t)g << 8) | ((uint32_t)r << 16) |
- (((uint32)0xffL) << 24);
- pDIBitmap->SetPaletteEntry(index, color);
- }
-}
-FX_BOOL CCodec_TiffContext::Decode1bppRGB(CFX_DIBitmap* pDIBitmap,
- int32_t height,
- int32_t width,
- uint16_t bps,
- uint16_t spp) {
- if (pDIBitmap->GetBPP() != 1 || spp != 1 || bps != 1 ||
- !isSupport(pDIBitmap)) {
- return FALSE;
- }
- SetPalette(pDIBitmap, bps);
- int32_t size = (int32_t)TIFFScanlineSize(tif_ctx);
- uint8_t* buf = (uint8_t*)_TIFFmalloc(size);
- if (buf == NULL) {
- TIFFError(TIFFFileName(tif_ctx), "No space for scanline buffer");
- return FALSE;
- }
- uint8_t* bitMapbuffer = (uint8_t*)pDIBitmap->GetBuffer();
- FX_DWORD pitch = pDIBitmap->GetPitch();
- for (int32_t row = 0; row < height; row++) {
- TIFFReadScanline(tif_ctx, buf, row, 0);
- for (int32_t j = 0; j < size; j++) {
- bitMapbuffer[row * pitch + j] = buf[j];
- }
- }
- _TIFFfree(buf);
- return TRUE;
-}
-FX_BOOL CCodec_TiffContext::Decode8bppRGB(CFX_DIBitmap* pDIBitmap,
- int32_t height,
- int32_t width,
- uint16_t bps,
- uint16_t spp) {
- if (pDIBitmap->GetBPP() != 8 || spp != 1 || (bps != 4 && bps != 8) ||
- !isSupport(pDIBitmap)) {
- return FALSE;
- }
- SetPalette(pDIBitmap, bps);
- int32_t size = (int32_t)TIFFScanlineSize(tif_ctx);
- uint8_t* buf = (uint8_t*)_TIFFmalloc(size);
- if (buf == NULL) {
- TIFFError(TIFFFileName(tif_ctx), "No space for scanline buffer");
- return FALSE;
- }
- uint8_t* bitMapbuffer = (uint8_t*)pDIBitmap->GetBuffer();
- FX_DWORD pitch = pDIBitmap->GetPitch();
- for (int32_t row = 0; row < height; row++) {
- TIFFReadScanline(tif_ctx, buf, row, 0);
- for (int32_t j = 0; j < size; j++) {
- switch (bps) {
- case 4:
- bitMapbuffer[row * pitch + 2 * j + 0] = (buf[j] & 0xF0) >> 4;
- bitMapbuffer[row * pitch + 2 * j + 1] = (buf[j] & 0x0F) >> 0;
- break;
- case 8:
- bitMapbuffer[row * pitch + j] = buf[j];
- break;
- }
- }
- }
- _TIFFfree(buf);
- return TRUE;
-}
-FX_BOOL CCodec_TiffContext::Decode24bppRGB(CFX_DIBitmap* pDIBitmap,
- int32_t height,
- int32_t width,
- uint16_t bps,
- uint16_t spp) {
- if (pDIBitmap->GetBPP() != 24 || !isSupport(pDIBitmap)) {
- return FALSE;
- }
- int32_t size = (int32_t)TIFFScanlineSize(tif_ctx);
- uint8_t* buf = (uint8_t*)_TIFFmalloc(size);
- if (buf == NULL) {
- TIFFError(TIFFFileName(tif_ctx), "No space for scanline buffer");
- return FALSE;
- }
- uint8_t* bitMapbuffer = (uint8_t*)pDIBitmap->GetBuffer();
- FX_DWORD pitch = pDIBitmap->GetPitch();
- for (int32_t row = 0; row < height; row++) {
- TIFFReadScanline(tif_ctx, buf, row, 0);
- for (int32_t j = 0; j < size - 2; j += 3) {
- bitMapbuffer[row * pitch + j + 0] = buf[j + 2];
- bitMapbuffer[row * pitch + j + 1] = buf[j + 1];
- bitMapbuffer[row * pitch + j + 2] = buf[j + 0];
- }
- }
- _TIFFfree(buf);
- return TRUE;
-}
-FX_BOOL CCodec_TiffContext::Decode(CFX_DIBitmap* pDIBitmap) {
- FX_DWORD img_wid = pDIBitmap->GetWidth();
- FX_DWORD img_hei = pDIBitmap->GetHeight();
- FX_DWORD width = 0;
- FX_DWORD height = 0;
- TIFFGetField(tif_ctx, TIFFTAG_IMAGEWIDTH, &width);
- TIFFGetField(tif_ctx, TIFFTAG_IMAGELENGTH, &height);
- if (img_wid != width || img_hei != height) {
- return FALSE;
- }
- if (pDIBitmap->GetBPP() == 32) {
- FX_WORD rotation = ORIENTATION_TOPLEFT;
- TIFFGetField(tif_ctx, TIFFTAG_ORIENTATION, &rotation);
- if (TIFFReadRGBAImageOriented(tif_ctx, img_wid, img_hei,
- (uint32*)pDIBitmap->GetBuffer(), rotation,
- 1)) {
- for (FX_DWORD row = 0; row < img_hei; row++) {
- uint8_t* row_buf = (uint8_t*)pDIBitmap->GetScanline(row);
- _TiffBGRA2RGBA(row_buf, img_wid, 4);
- }
- return TRUE;
- }
- }
- uint16_t spp, bps;
- TIFFGetField(tif_ctx, TIFFTAG_SAMPLESPERPIXEL, &spp);
- TIFFGetField(tif_ctx, TIFFTAG_BITSPERSAMPLE, &bps);
- FX_DWORD bpp = bps * spp;
- if (bpp == 1) {
- return Decode1bppRGB(pDIBitmap, height, width, bps, spp);
- } else if (bpp <= 8) {
- return Decode8bppRGB(pDIBitmap, height, width, bps, spp);
- } else if (bpp <= 24) {
- return Decode24bppRGB(pDIBitmap, height, width, bps, spp);
- }
- return FALSE;
-}
-void* CCodec_TiffModule::CreateDecoder(IFX_FileRead* file_ptr) {
- CCodec_TiffContext* pDecoder = new CCodec_TiffContext;
- if (!pDecoder->InitDecoder(file_ptr)) {
- delete pDecoder;
- return NULL;
- }
- return pDecoder;
-}
-void CCodec_TiffModule::GetFrames(void* ctx, int32_t& frames) {
- CCodec_TiffContext* pDecoder = (CCodec_TiffContext*)ctx;
- pDecoder->GetFrames(frames);
-}
-FX_BOOL CCodec_TiffModule::LoadFrameInfo(void* ctx,
- int32_t frame,
- FX_DWORD& width,
- FX_DWORD& height,
- FX_DWORD& comps,
- FX_DWORD& bpc,
- CFX_DIBAttribute* pAttribute) {
- CCodec_TiffContext* pDecoder = (CCodec_TiffContext*)ctx;
- return pDecoder->LoadFrameInfo(frame, width, height, comps, bpc, pAttribute);
-}
-FX_BOOL CCodec_TiffModule::Decode(void* ctx, class CFX_DIBitmap* pDIBitmap) {
- CCodec_TiffContext* pDecoder = (CCodec_TiffContext*)ctx;
- return pDecoder->Decode(pDIBitmap);
-}
-void CCodec_TiffModule::DestroyDecoder(void* ctx) {
- CCodec_TiffContext* pDecoder = (CCodec_TiffContext*)ctx;
- delete pDecoder;
-}
+// Copyright 2014 PDFium Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. + +// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com + +#include "core/include/fxcodec/fx_codec.h" +#include "core/include/fxge/fx_dib.h" +#include "codec_int.h" + +extern "C" { +#include "third_party/libtiff/tiffiop.h" +} + +void* IccLib_CreateTransform_sRGB(const unsigned char* pProfileData, + unsigned int dwProfileSize, + int nComponents, + int intent, + FX_DWORD dwSrcFormat = Icc_FORMAT_DEFAULT); +void IccLib_TranslateImage(void* pTransform, + unsigned char* pDest, + const unsigned char* pSrc, + int pixels); +void IccLib_DestroyTransform(void* pTransform); +class CCodec_TiffContext { + public: + CCodec_TiffContext(); + ~CCodec_TiffContext(); + + FX_BOOL InitDecoder(IFX_FileRead* file_ptr); + void GetFrames(int32_t& frames); + FX_BOOL LoadFrameInfo(int32_t frame, + FX_DWORD& width, + FX_DWORD& height, + FX_DWORD& comps, + FX_DWORD& bpc, + CFX_DIBAttribute* pAttribute); + FX_BOOL Decode(CFX_DIBitmap* pDIBitmap); + + union { + IFX_FileRead* in; + IFX_FileStream* out; + } io; + + FX_DWORD offset; + + TIFF* tif_ctx; + void* icc_ctx; + int32_t frame_num; + int32_t frame_cur; + FX_BOOL isDecoder; + + private: + FX_BOOL isSupport(CFX_DIBitmap* pDIBitmap); + void SetPalette(CFX_DIBitmap* pDIBitmap, uint16_t bps); + FX_BOOL Decode1bppRGB(CFX_DIBitmap* pDIBitmap, + int32_t height, + int32_t width, + uint16_t bps, + uint16_t spp); + FX_BOOL Decode8bppRGB(CFX_DIBitmap* pDIBitmap, + int32_t height, + int32_t width, + uint16_t bps, + uint16_t spp); + FX_BOOL Decode24bppRGB(CFX_DIBitmap* pDIBitmap, + int32_t height, + int32_t width, + uint16_t bps, + uint16_t spp); +}; +CCodec_TiffContext::CCodec_TiffContext() { + offset = 0; + frame_num = 0; + frame_cur = 0; + io.in = NULL; + tif_ctx = NULL; + icc_ctx = NULL; + isDecoder = TRUE; +} +CCodec_TiffContext::~CCodec_TiffContext() { + if (icc_ctx) { + IccLib_DestroyTransform(icc_ctx); + icc_ctx = NULL; + } + if (tif_ctx) { + TIFFClose(tif_ctx); + } +} +static tsize_t _tiff_read(thandle_t context, tdata_t buf, tsize_t length) { + CCodec_TiffContext* pTiffContext = (CCodec_TiffContext*)context; + FX_BOOL ret = FALSE; + if (pTiffContext->isDecoder) { + ret = pTiffContext->io.in->ReadBlock(buf, pTiffContext->offset, length); + } else { + ret = pTiffContext->io.out->ReadBlock(buf, pTiffContext->offset, length); + } + if (!ret) { + return 0; + } + pTiffContext->offset += (FX_DWORD)length; + return length; +} +static tsize_t _tiff_write(thandle_t context, tdata_t buf, tsize_t length) { + CCodec_TiffContext* pTiffContext = (CCodec_TiffContext*)context; + ASSERT(!pTiffContext->isDecoder); + if (!pTiffContext->io.out->WriteBlock(buf, pTiffContext->offset, length)) { + return 0; + } + pTiffContext->offset += (FX_DWORD)length; + return length; +} +static toff_t _tiff_seek(thandle_t context, toff_t offset, int whence) { + CCodec_TiffContext* pTiffContext = (CCodec_TiffContext*)context; + switch (whence) { + case 0: + pTiffContext->offset = (FX_DWORD)offset; + break; + case 1: + pTiffContext->offset += (FX_DWORD)offset; + break; + case 2: + if (pTiffContext->isDecoder) { + if (pTiffContext->io.in->GetSize() < (FX_FILESIZE)offset) { + return -1; + } + pTiffContext->offset = + (FX_DWORD)(pTiffContext->io.in->GetSize() - offset); + } else { + if (pTiffContext->io.out->GetSize() < (FX_FILESIZE)offset) { + return -1; + } + pTiffContext->offset = + (FX_DWORD)(pTiffContext->io.out->GetSize() - offset); + } + break; + default: + return -1; + } + ASSERT(pTiffContext->isDecoder ? (pTiffContext->offset <= + (FX_DWORD)pTiffContext->io.in->GetSize()) + : TRUE); + return pTiffContext->offset; +} +static int _tiff_close(thandle_t context) { + return 0; +} +static toff_t _tiff_get_size(thandle_t context) { + CCodec_TiffContext* pTiffContext = (CCodec_TiffContext*)context; + return pTiffContext->isDecoder ? (toff_t)pTiffContext->io.in->GetSize() + : (toff_t)pTiffContext->io.out->GetSize(); +} +static int _tiff_map(thandle_t context, tdata_t*, toff_t*) { + return 0; +} +static void _tiff_unmap(thandle_t context, tdata_t, toff_t) {} +TIFF* _tiff_open(void* context, const char* mode) { + TIFF* tif = TIFFClientOpen("Tiff Image", mode, (thandle_t)context, _tiff_read, + _tiff_write, _tiff_seek, _tiff_close, + _tiff_get_size, _tiff_map, _tiff_unmap); + if (tif) { + tif->tif_fd = (int)(intptr_t)context; + } + return tif; +} +void* _TIFFmalloc(tmsize_t size) { + return FXMEM_DefaultAlloc(size, 0); +} +void _TIFFfree(void* ptr) { + FXMEM_DefaultFree(ptr, 0); +} +void* _TIFFrealloc(void* ptr, tmsize_t size) { + return FXMEM_DefaultRealloc(ptr, size, 0); +} +void _TIFFmemset(void* ptr, int val, tmsize_t size) { + FXSYS_memset(ptr, val, (size_t)size); +} +void _TIFFmemcpy(void* des, const void* src, tmsize_t size) { + FXSYS_memcpy(des, src, (size_t)size); +} +int _TIFFmemcmp(const void* ptr1, const void* ptr2, tmsize_t size) { + return FXSYS_memcmp(ptr1, ptr2, (size_t)size); +} + +TIFFErrorHandler _TIFFwarningHandler = nullptr; +TIFFErrorHandler _TIFFerrorHandler = nullptr; + +int TIFFCmyk2Rgb(thandle_t context, + uint8 c, + uint8 m, + uint8 y, + uint8 k, + uint8* r, + uint8* g, + uint8* b) { + if (context == NULL) { + return 0; + } + CCodec_TiffContext* p = (CCodec_TiffContext*)context; + if (p->icc_ctx) { + unsigned char cmyk[4], bgr[3]; + cmyk[0] = c, cmyk[1] = m, cmyk[2] = y, cmyk[3] = k; + IccLib_TranslateImage(p->icc_ctx, bgr, cmyk, 1); + *r = bgr[2], *g = bgr[1], *b = bgr[0]; + } else { + AdobeCMYK_to_sRGB1(c, m, y, k, *r, *g, *b); + } + return 1; +} +FX_BOOL CCodec_TiffContext::InitDecoder(IFX_FileRead* file_ptr) { + io.in = file_ptr; + tif_ctx = _tiff_open(this, "r"); + if (tif_ctx == NULL) { + return FALSE; + } + return TRUE; +} +void CCodec_TiffContext::GetFrames(int32_t& frames) { + frames = frame_num = TIFFNumberOfDirectories(tif_ctx); +} +#define TIFF_EXIF_GETINFO(key, T, tag) \ + { \ + T val = (T)0; \ + TIFFGetField(tif_ctx, tag, &val); \ + if (val) { \ + (key) = FX_Alloc(uint8_t, sizeof(T)); \ + if ((key)) { \ + T* ptr = (T*)(key); \ + *ptr = val; \ + pExif->m_TagVal.SetAt(tag, (key)); \ + } \ + } \ + } \ + (key) = NULL; +#define TIFF_EXIF_GETSTRINGINFO(key, tag) \ + { \ + FX_DWORD size = 0; \ + uint8_t* buf = NULL; \ + TIFFGetField(tif_ctx, tag, &size, &buf); \ + if (size && buf) { \ + (key) = FX_Alloc(uint8_t, size); \ + if ((key)) { \ + FXSYS_memcpy((key), buf, size); \ + pExif->m_TagVal.SetAt(tag, (key)); \ + } \ + } \ + } \ + (key) = NULL; + +namespace { + +template <class T> +FX_BOOL Tiff_Exif_GetInfo(TIFF* tif_ctx, ttag_t tag, CFX_DIBAttribute* pAttr) { + T val = 0; + TIFFGetField(tif_ctx, tag, &val); + if (!val) + return FALSE; + T* ptr = FX_Alloc(T, 1); + *ptr = val; + pAttr->m_Exif[tag] = (void*)ptr; + return TRUE; +} +void Tiff_Exif_GetStringInfo(TIFF* tif_ctx, + ttag_t tag, + CFX_DIBAttribute* pAttr) { + FX_CHAR* buf = nullptr; + TIFFGetField(tif_ctx, tag, &buf); + if (!buf) + return; + FX_STRSIZE size = FXSYS_strlen(buf); + uint8_t* ptr = FX_Alloc(uint8_t, size + 1); + FXSYS_memcpy(ptr, buf, size); + ptr[size] = 0; + pAttr->m_Exif[tag] = ptr; +} + +} // namespace + +FX_BOOL CCodec_TiffContext::LoadFrameInfo(int32_t frame, + FX_DWORD& width, + FX_DWORD& height, + FX_DWORD& comps, + FX_DWORD& bpc, + CFX_DIBAttribute* pAttribute) { + if (!TIFFSetDirectory(tif_ctx, (uint16)frame)) { + return FALSE; + } + FX_WORD tif_cs; + FX_DWORD tif_icc_size = 0; + uint8_t* tif_icc_buf = NULL; + FX_WORD tif_bpc = 0; + FX_WORD tif_cps; + FX_DWORD tif_rps; + width = height = comps = 0; + TIFFGetField(tif_ctx, TIFFTAG_IMAGEWIDTH, &width); + TIFFGetField(tif_ctx, TIFFTAG_IMAGELENGTH, &height); + TIFFGetField(tif_ctx, TIFFTAG_SAMPLESPERPIXEL, &comps); + TIFFGetField(tif_ctx, TIFFTAG_BITSPERSAMPLE, &tif_bpc); + TIFFGetField(tif_ctx, TIFFTAG_PHOTOMETRIC, &tif_cs); + TIFFGetField(tif_ctx, TIFFTAG_COMPRESSION, &tif_cps); + TIFFGetField(tif_ctx, TIFFTAG_ROWSPERSTRIP, &tif_rps); + TIFFGetField(tif_ctx, TIFFTAG_ICCPROFILE, &tif_icc_size, &tif_icc_buf); + if (pAttribute) { + pAttribute->m_wDPIUnit = FXCODEC_RESUNIT_INCH; + if (TIFFGetField(tif_ctx, TIFFTAG_RESOLUTIONUNIT, + &pAttribute->m_wDPIUnit)) { + pAttribute->m_wDPIUnit -= 1; + } + Tiff_Exif_GetInfo<FX_WORD>(tif_ctx, TIFFTAG_ORIENTATION, pAttribute); + if (Tiff_Exif_GetInfo<FX_FLOAT>(tif_ctx, TIFFTAG_XRESOLUTION, pAttribute)) { + void* val = pAttribute->m_Exif[TIFFTAG_XRESOLUTION]; + FX_FLOAT fDpi = val ? *reinterpret_cast<FX_FLOAT*>(val) : 0; + pAttribute->m_nXDPI = (int32_t)(fDpi + 0.5f); + } + if (Tiff_Exif_GetInfo<FX_FLOAT>(tif_ctx, TIFFTAG_YRESOLUTION, pAttribute)) { + void* val = pAttribute->m_Exif[TIFFTAG_YRESOLUTION]; + FX_FLOAT fDpi = val ? *reinterpret_cast<FX_FLOAT*>(val) : 0; + pAttribute->m_nYDPI = (int32_t)(fDpi + 0.5f); + } + Tiff_Exif_GetStringInfo(tif_ctx, TIFFTAG_IMAGEDESCRIPTION, pAttribute); + Tiff_Exif_GetStringInfo(tif_ctx, TIFFTAG_MAKE, pAttribute); + Tiff_Exif_GetStringInfo(tif_ctx, TIFFTAG_MODEL, pAttribute); + } + bpc = tif_bpc; + if (tif_rps > height) { + TIFFSetField(tif_ctx, TIFFTAG_ROWSPERSTRIP, tif_rps = height); + } + return TRUE; +} +void _TiffBGRA2RGBA(uint8_t* pBuf, int32_t pixel, int32_t spp) { + for (int32_t n = 0; n < pixel; n++) { + uint8_t tmp = pBuf[0]; + pBuf[0] = pBuf[2]; + pBuf[2] = tmp; + pBuf += spp; + } +} +FX_BOOL CCodec_TiffContext::isSupport(CFX_DIBitmap* pDIBitmap) { + if (TIFFIsTiled(tif_ctx)) { + return FALSE; + } + uint16_t photometric; + if (!TIFFGetField(tif_ctx, TIFFTAG_PHOTOMETRIC, &photometric)) { + return FALSE; + } + switch (pDIBitmap->GetBPP()) { + case 1: + case 8: + if (photometric != PHOTOMETRIC_PALETTE) { + return FALSE; + } + break; + case 24: + if (photometric != PHOTOMETRIC_RGB) { + return FALSE; + } + break; + default: + return FALSE; + } + uint16_t planarconfig; + if (!TIFFGetFieldDefaulted(tif_ctx, TIFFTAG_PLANARCONFIG, &planarconfig)) { + return FALSE; + } + if (planarconfig == PLANARCONFIG_SEPARATE) { + return FALSE; + } + return TRUE; +} +void CCodec_TiffContext::SetPalette(CFX_DIBitmap* pDIBitmap, uint16_t bps) { + uint16_t *red_orig, *green_orig, *blue_orig; + TIFFGetField(tif_ctx, TIFFTAG_COLORMAP, &red_orig, &green_orig, &blue_orig); + for (int32_t i = (1L << bps) - 1; i >= 0; i--) { +#define CVT(x) ((uint16_t)((x) >> 8)) + red_orig[i] = CVT(red_orig[i]); + green_orig[i] = CVT(green_orig[i]); + blue_orig[i] = CVT(blue_orig[i]); +#undef CVT + } + int32_t len = 1 << bps; + for (int32_t index = 0; index < len; index++) { + FX_DWORD r = red_orig[index] & 0xFF; + FX_DWORD g = green_orig[index] & 0xFF; + FX_DWORD b = blue_orig[index] & 0xFF; + FX_DWORD color = (uint32_t)b | ((uint32_t)g << 8) | ((uint32_t)r << 16) | + (((uint32)0xffL) << 24); + pDIBitmap->SetPaletteEntry(index, color); + } +} +FX_BOOL CCodec_TiffContext::Decode1bppRGB(CFX_DIBitmap* pDIBitmap, + int32_t height, + int32_t width, + uint16_t bps, + uint16_t spp) { + if (pDIBitmap->GetBPP() != 1 || spp != 1 || bps != 1 || + !isSupport(pDIBitmap)) { + return FALSE; + } + SetPalette(pDIBitmap, bps); + int32_t size = (int32_t)TIFFScanlineSize(tif_ctx); + uint8_t* buf = (uint8_t*)_TIFFmalloc(size); + if (buf == NULL) { + TIFFError(TIFFFileName(tif_ctx), "No space for scanline buffer"); + return FALSE; + } + uint8_t* bitMapbuffer = (uint8_t*)pDIBitmap->GetBuffer(); + FX_DWORD pitch = pDIBitmap->GetPitch(); + for (int32_t row = 0; row < height; row++) { + TIFFReadScanline(tif_ctx, buf, row, 0); + for (int32_t j = 0; j < size; j++) { + bitMapbuffer[row * pitch + j] = buf[j]; + } + } + _TIFFfree(buf); + return TRUE; +} +FX_BOOL CCodec_TiffContext::Decode8bppRGB(CFX_DIBitmap* pDIBitmap, + int32_t height, + int32_t width, + uint16_t bps, + uint16_t spp) { + if (pDIBitmap->GetBPP() != 8 || spp != 1 || (bps != 4 && bps != 8) || + !isSupport(pDIBitmap)) { + return FALSE; + } + SetPalette(pDIBitmap, bps); + int32_t size = (int32_t)TIFFScanlineSize(tif_ctx); + uint8_t* buf = (uint8_t*)_TIFFmalloc(size); + if (buf == NULL) { + TIFFError(TIFFFileName(tif_ctx), "No space for scanline buffer"); + return FALSE; + } + uint8_t* bitMapbuffer = (uint8_t*)pDIBitmap->GetBuffer(); + FX_DWORD pitch = pDIBitmap->GetPitch(); + for (int32_t row = 0; row < height; row++) { + TIFFReadScanline(tif_ctx, buf, row, 0); + for (int32_t j = 0; j < size; j++) { + switch (bps) { + case 4: + bitMapbuffer[row * pitch + 2 * j + 0] = (buf[j] & 0xF0) >> 4; + bitMapbuffer[row * pitch + 2 * j + 1] = (buf[j] & 0x0F) >> 0; + break; + case 8: + bitMapbuffer[row * pitch + j] = buf[j]; + break; + } + } + } + _TIFFfree(buf); + return TRUE; +} +FX_BOOL CCodec_TiffContext::Decode24bppRGB(CFX_DIBitmap* pDIBitmap, + int32_t height, + int32_t width, + uint16_t bps, + uint16_t spp) { + if (pDIBitmap->GetBPP() != 24 || !isSupport(pDIBitmap)) { + return FALSE; + } + int32_t size = (int32_t)TIFFScanlineSize(tif_ctx); + uint8_t* buf = (uint8_t*)_TIFFmalloc(size); + if (buf == NULL) { + TIFFError(TIFFFileName(tif_ctx), "No space for scanline buffer"); + return FALSE; + } + uint8_t* bitMapbuffer = (uint8_t*)pDIBitmap->GetBuffer(); + FX_DWORD pitch = pDIBitmap->GetPitch(); + for (int32_t row = 0; row < height; row++) { + TIFFReadScanline(tif_ctx, buf, row, 0); + for (int32_t j = 0; j < size - 2; j += 3) { + bitMapbuffer[row * pitch + j + 0] = buf[j + 2]; + bitMapbuffer[row * pitch + j + 1] = buf[j + 1]; + bitMapbuffer[row * pitch + j + 2] = buf[j + 0]; + } + } + _TIFFfree(buf); + return TRUE; +} +FX_BOOL CCodec_TiffContext::Decode(CFX_DIBitmap* pDIBitmap) { + FX_DWORD img_wid = pDIBitmap->GetWidth(); + FX_DWORD img_hei = pDIBitmap->GetHeight(); + FX_DWORD width = 0; + FX_DWORD height = 0; + TIFFGetField(tif_ctx, TIFFTAG_IMAGEWIDTH, &width); + TIFFGetField(tif_ctx, TIFFTAG_IMAGELENGTH, &height); + if (img_wid != width || img_hei != height) { + return FALSE; + } + if (pDIBitmap->GetBPP() == 32) { + FX_WORD rotation = ORIENTATION_TOPLEFT; + TIFFGetField(tif_ctx, TIFFTAG_ORIENTATION, &rotation); + if (TIFFReadRGBAImageOriented(tif_ctx, img_wid, img_hei, + (uint32*)pDIBitmap->GetBuffer(), rotation, + 1)) { + for (FX_DWORD row = 0; row < img_hei; row++) { + uint8_t* row_buf = (uint8_t*)pDIBitmap->GetScanline(row); + _TiffBGRA2RGBA(row_buf, img_wid, 4); + } + return TRUE; + } + } + uint16_t spp, bps; + TIFFGetField(tif_ctx, TIFFTAG_SAMPLESPERPIXEL, &spp); + TIFFGetField(tif_ctx, TIFFTAG_BITSPERSAMPLE, &bps); + FX_DWORD bpp = bps * spp; + if (bpp == 1) { + return Decode1bppRGB(pDIBitmap, height, width, bps, spp); + } else if (bpp <= 8) { + return Decode8bppRGB(pDIBitmap, height, width, bps, spp); + } else if (bpp <= 24) { + return Decode24bppRGB(pDIBitmap, height, width, bps, spp); + } + return FALSE; +} +void* CCodec_TiffModule::CreateDecoder(IFX_FileRead* file_ptr) { + CCodec_TiffContext* pDecoder = new CCodec_TiffContext; + if (!pDecoder->InitDecoder(file_ptr)) { + delete pDecoder; + return NULL; + } + return pDecoder; +} +void CCodec_TiffModule::GetFrames(void* ctx, int32_t& frames) { + CCodec_TiffContext* pDecoder = (CCodec_TiffContext*)ctx; + pDecoder->GetFrames(frames); +} +FX_BOOL CCodec_TiffModule::LoadFrameInfo(void* ctx, + int32_t frame, + FX_DWORD& width, + FX_DWORD& height, + FX_DWORD& comps, + FX_DWORD& bpc, + CFX_DIBAttribute* pAttribute) { + CCodec_TiffContext* pDecoder = (CCodec_TiffContext*)ctx; + return pDecoder->LoadFrameInfo(frame, width, height, comps, bpc, pAttribute); +} +FX_BOOL CCodec_TiffModule::Decode(void* ctx, class CFX_DIBitmap* pDIBitmap) { + CCodec_TiffContext* pDecoder = (CCodec_TiffContext*)ctx; + return pDecoder->Decode(pDIBitmap); +} +void CCodec_TiffModule::DestroyDecoder(void* ctx) { + CCodec_TiffContext* pDecoder = (CCodec_TiffContext*)ctx; + delete pDecoder; +} diff --git a/core/src/fxcodec/lbmp/fx_bmp.cpp b/core/src/fxcodec/lbmp/fx_bmp.cpp index 00477581a1..388daa434f 100644 --- a/core/src/fxcodec/lbmp/fx_bmp.cpp +++ b/core/src/fxcodec/lbmp/fx_bmp.cpp @@ -1,975 +1,975 @@ -// Copyright 2014 PDFium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
-
-#include "fx_bmp.h"
-
-#include <algorithm>
-
-namespace {
-
-const size_t kBmpCoreHeaderSize = 12;
-const size_t kBmpInfoHeaderSize = 40;
-
-} // namespace
-
-FX_DWORD _GetDWord_LSBFirst(uint8_t* p) {
- return p[0] | (p[1] << 8) | (p[2] << 16) | (p[3] << 24);
-}
-FX_WORD _GetWord_LSBFirst(uint8_t* p) {
- return p[0] | (p[1] << 8);
-}
-void _SetDWord_LSBFirst(uint8_t* p, FX_DWORD v) {
- p[0] = (uint8_t)v;
- p[1] = (uint8_t)(v >> 8);
- p[2] = (uint8_t)(v >> 16);
- p[3] = (uint8_t)(v >> 24);
-}
-void _SetWord_LSBFirst(uint8_t* p, FX_WORD v) {
- p[0] = (uint8_t)v;
- p[1] = (uint8_t)(v >> 8);
-}
-void _bmp_error(bmp_decompress_struct_p bmp_ptr, const FX_CHAR* err_msg) {
- if (bmp_ptr != NULL && bmp_ptr->_bmp_error_fn != NULL) {
- bmp_ptr->_bmp_error_fn(bmp_ptr, err_msg);
- }
-}
-bmp_decompress_struct_p _bmp_create_decompress() {
- bmp_decompress_struct_p bmp_ptr = FX_Alloc(bmp_decompress_struct, 1);
- if (bmp_ptr == NULL) {
- return NULL;
- }
- FXSYS_memset(bmp_ptr, 0, sizeof(bmp_decompress_struct));
- bmp_ptr->decode_status = BMP_D_STATUS_HEADER;
- bmp_ptr->bmp_header_ptr = FX_Alloc(BmpFileHeader, 1);
- return bmp_ptr;
-}
-void _bmp_destroy_decompress(bmp_decompress_struct_pp bmp_ptr_ptr) {
- if (bmp_ptr_ptr == NULL || *bmp_ptr_ptr == NULL) {
- return;
- }
- bmp_decompress_struct_p bmp_ptr = *bmp_ptr_ptr;
- *bmp_ptr_ptr = NULL;
- if (bmp_ptr->out_row_buffer != NULL) {
- FX_Free(bmp_ptr->out_row_buffer);
- }
- if (bmp_ptr->pal_ptr != NULL) {
- FX_Free(bmp_ptr->pal_ptr);
- }
- if (bmp_ptr->bmp_header_ptr != NULL) {
- FX_Free(bmp_ptr->bmp_header_ptr);
- }
- FX_Free(bmp_ptr);
-}
-int32_t _bmp_read_header(bmp_decompress_struct_p bmp_ptr) {
- if (bmp_ptr == NULL) {
- return 0;
- }
- FX_DWORD skip_size_org = bmp_ptr->skip_size;
- if (bmp_ptr->decode_status == BMP_D_STATUS_HEADER) {
- ASSERT(sizeof(BmpFileHeader) == 14);
- BmpFileHeader* bmp_header_ptr = NULL;
- if (_bmp_read_data(bmp_ptr, (uint8_t**)&bmp_header_ptr, 14) == NULL) {
- return 2;
- }
- bmp_ptr->bmp_header_ptr->bfType =
- _GetWord_LSBFirst((uint8_t*)&bmp_header_ptr->bfType);
- bmp_ptr->bmp_header_ptr->bfOffBits =
- _GetDWord_LSBFirst((uint8_t*)&bmp_header_ptr->bfOffBits);
- bmp_ptr->data_size = _GetDWord_LSBFirst((uint8_t*)&bmp_header_ptr->bfSize);
- if (bmp_ptr->bmp_header_ptr->bfType != BMP_SIGNATURE) {
- _bmp_error(bmp_ptr, "Not A Bmp Image");
- return 0;
- }
- if (bmp_ptr->avail_in < sizeof(FX_DWORD)) {
- bmp_ptr->skip_size = skip_size_org;
- return 2;
- }
- bmp_ptr->img_ifh_size =
- _GetDWord_LSBFirst(bmp_ptr->next_in + bmp_ptr->skip_size);
- bmp_ptr->pal_type = 0;
- static_assert(sizeof(BmpCoreHeader) == kBmpCoreHeaderSize,
- "BmpCoreHeader has wrong size");
- static_assert(sizeof(BmpInfoHeader) == kBmpInfoHeaderSize,
- "BmpInfoHeader has wrong size");
- switch (bmp_ptr->img_ifh_size) {
- case kBmpCoreHeaderSize: {
- bmp_ptr->pal_type = 1;
- BmpCoreHeaderPtr bmp_core_header_ptr = NULL;
- if (_bmp_read_data(bmp_ptr, (uint8_t**)&bmp_core_header_ptr,
- bmp_ptr->img_ifh_size) == NULL) {
- bmp_ptr->skip_size = skip_size_org;
- return 2;
- }
- bmp_ptr->width = (FX_DWORD)_GetWord_LSBFirst(
- (uint8_t*)&bmp_core_header_ptr->bcWidth);
- bmp_ptr->height = (FX_DWORD)_GetWord_LSBFirst(
- (uint8_t*)&bmp_core_header_ptr->bcHeight);
- bmp_ptr->bitCounts =
- _GetWord_LSBFirst((uint8_t*)&bmp_core_header_ptr->bcBitCount);
- bmp_ptr->compress_flag = BMP_RGB;
- bmp_ptr->imgTB_flag = FALSE;
- } break;
- case kBmpInfoHeaderSize: {
- BmpInfoHeaderPtr bmp_info_header_ptr = NULL;
- if (_bmp_read_data(bmp_ptr, (uint8_t**)&bmp_info_header_ptr,
- bmp_ptr->img_ifh_size) == NULL) {
- bmp_ptr->skip_size = skip_size_org;
- return 2;
- }
- bmp_ptr->width =
- _GetDWord_LSBFirst((uint8_t*)&bmp_info_header_ptr->biWidth);
- bmp_ptr->height =
- _GetDWord_LSBFirst((uint8_t*)&bmp_info_header_ptr->biHeight);
- bmp_ptr->bitCounts =
- _GetWord_LSBFirst((uint8_t*)&bmp_info_header_ptr->biBitCount);
- bmp_ptr->compress_flag =
- _GetDWord_LSBFirst((uint8_t*)&bmp_info_header_ptr->biCompression);
- bmp_ptr->color_used =
- _GetDWord_LSBFirst((uint8_t*)&bmp_info_header_ptr->biClrUsed);
- bmp_ptr->dpi_x = (int32_t)_GetDWord_LSBFirst(
- (uint8_t*)&bmp_info_header_ptr->biXPelsPerMeter);
- bmp_ptr->dpi_y = (int32_t)_GetDWord_LSBFirst(
- (uint8_t*)&bmp_info_header_ptr->biYPelsPerMeter);
- if (bmp_ptr->height < 0) {
- bmp_ptr->height = -bmp_ptr->height;
- bmp_ptr->imgTB_flag = TRUE;
- }
- } break;
- default: {
- if (bmp_ptr->img_ifh_size >
- std::min(kBmpInfoHeaderSize, sizeof(BmpInfoHeader))) {
- BmpInfoHeaderPtr bmp_info_header_ptr = NULL;
- if (_bmp_read_data(bmp_ptr, (uint8_t**)&bmp_info_header_ptr,
- bmp_ptr->img_ifh_size) == NULL) {
- bmp_ptr->skip_size = skip_size_org;
- return 2;
- }
- FX_WORD biPlanes;
- bmp_ptr->width =
- _GetDWord_LSBFirst((uint8_t*)&bmp_info_header_ptr->biWidth);
- bmp_ptr->height =
- _GetDWord_LSBFirst((uint8_t*)&bmp_info_header_ptr->biHeight);
- bmp_ptr->bitCounts =
- _GetWord_LSBFirst((uint8_t*)&bmp_info_header_ptr->biBitCount);
- bmp_ptr->compress_flag =
- _GetDWord_LSBFirst((uint8_t*)&bmp_info_header_ptr->biCompression);
- bmp_ptr->color_used =
- _GetDWord_LSBFirst((uint8_t*)&bmp_info_header_ptr->biClrUsed);
- biPlanes =
- _GetWord_LSBFirst((uint8_t*)&bmp_info_header_ptr->biPlanes);
- bmp_ptr->dpi_x = _GetDWord_LSBFirst(
- (uint8_t*)&bmp_info_header_ptr->biXPelsPerMeter);
- bmp_ptr->dpi_y = _GetDWord_LSBFirst(
- (uint8_t*)&bmp_info_header_ptr->biYPelsPerMeter);
- if (bmp_ptr->height < 0) {
- bmp_ptr->height = -bmp_ptr->height;
- bmp_ptr->imgTB_flag = TRUE;
- }
- if (bmp_ptr->compress_flag == BMP_RGB && biPlanes == 1 &&
- bmp_ptr->color_used == 0) {
- break;
- }
- }
- _bmp_error(bmp_ptr, "Unsupported Bmp File");
- return 0;
- }
- }
- ASSERT(bmp_ptr->width > 0);
- ASSERT(bmp_ptr->compress_flag <= BMP_BITFIELDS);
- switch (bmp_ptr->bitCounts) {
- case 1:
- case 4:
- case 8:
- case 16:
- case 24: {
- if (bmp_ptr->color_used > ((FX_DWORD)1) << bmp_ptr->bitCounts) {
- _bmp_error(bmp_ptr, "The Bmp File Is Corrupt");
- return 0;
- }
- }
- case 32: {
- if (bmp_ptr->width <= 0 || bmp_ptr->compress_flag > BMP_BITFIELDS) {
- _bmp_error(bmp_ptr, "The Bmp File Is Corrupt");
- return 0;
- }
- } break;
- default:
- _bmp_error(bmp_ptr, "The Bmp File Is Corrupt");
- return 0;
- }
- bmp_ptr->src_row_bytes = BMP_WIDTHBYTES(bmp_ptr->width, bmp_ptr->bitCounts);
- switch (bmp_ptr->bitCounts) {
- case 1:
- case 4:
- case 8:
- bmp_ptr->out_row_bytes = BMP_WIDTHBYTES(bmp_ptr->width, 8);
- bmp_ptr->components = 1;
- break;
- case 16:
- case 24:
- bmp_ptr->out_row_bytes = BMP_WIDTHBYTES(bmp_ptr->width, 24);
- bmp_ptr->components = 3;
- break;
- case 32:
- bmp_ptr->out_row_bytes = bmp_ptr->src_row_bytes;
- bmp_ptr->components = 4;
- break;
- }
- if (bmp_ptr->out_row_buffer != NULL) {
- FX_Free(bmp_ptr->out_row_buffer);
- bmp_ptr->out_row_buffer = NULL;
- }
- bmp_ptr->out_row_buffer = FX_Alloc(uint8_t, bmp_ptr->out_row_bytes);
- BMP_PTR_NOT_NULL(bmp_ptr->out_row_buffer, bmp_ptr);
- FXSYS_memset(bmp_ptr->out_row_buffer, 0, bmp_ptr->out_row_bytes);
- _bmp_save_decoding_status(bmp_ptr, BMP_D_STATUS_PAL);
- }
- if (bmp_ptr->decode_status == BMP_D_STATUS_PAL) {
- skip_size_org = bmp_ptr->skip_size;
-#ifdef BMP_SUPPORT_BITFIELD
- if (bmp_ptr->compress_flag == BMP_BITFIELDS) {
- if (bmp_ptr->bitCounts != 16 && bmp_ptr->bitCounts != 32) {
- _bmp_error(bmp_ptr, "The Bmp File Is Corrupt");
- return 0;
- }
- FX_DWORD* mask;
- if (_bmp_read_data(bmp_ptr, (uint8_t**)&mask, 3 * sizeof(FX_DWORD)) ==
- NULL) {
- bmp_ptr->skip_size = skip_size_org;
- return 2;
- }
- bmp_ptr->mask_red = _GetDWord_LSBFirst((uint8_t*)&mask[0]);
- bmp_ptr->mask_green = _GetDWord_LSBFirst((uint8_t*)&mask[1]);
- bmp_ptr->mask_blue = _GetDWord_LSBFirst((uint8_t*)&mask[2]);
- if (bmp_ptr->mask_red & bmp_ptr->mask_green ||
- bmp_ptr->mask_red & bmp_ptr->mask_blue ||
- bmp_ptr->mask_green & bmp_ptr->mask_blue) {
- _bmp_error(bmp_ptr, "The Bitfield Bmp File Is Corrupt");
- return 0;
- }
- if (bmp_ptr->bmp_header_ptr->bfOffBits < 26 + bmp_ptr->img_ifh_size) {
- bmp_ptr->bmp_header_ptr->bfOffBits = 26 + bmp_ptr->img_ifh_size;
- }
- _bmp_save_decoding_status(bmp_ptr, BMP_D_STATUS_DATA_PRE);
- return 1;
- } else if (bmp_ptr->bitCounts == 16) {
- bmp_ptr->mask_red = 0x7C00;
- bmp_ptr->mask_green = 0x03E0;
- bmp_ptr->mask_blue = 0x001F;
- }
-#else
- if (bmp_ptr->compress_flag == BMP_BITFIELDS || bmp_ptr->bitCounts == 16) {
- _bmp_error(bmp_ptr, "Unsupported Bitfield Bmp File");
- return 0;
- }
-#endif
- bmp_ptr->pal_num = 0;
- if (bmp_ptr->bitCounts < 16) {
- bmp_ptr->pal_num = 1 << bmp_ptr->bitCounts;
- if (bmp_ptr->color_used != 0) {
- bmp_ptr->pal_num = bmp_ptr->color_used;
- }
- uint8_t* src_pal_ptr = NULL;
- FX_DWORD src_pal_size = bmp_ptr->pal_num * (bmp_ptr->pal_type ? 3 : 4);
- if (_bmp_read_data(bmp_ptr, (uint8_t**)&src_pal_ptr, src_pal_size) ==
- NULL) {
- bmp_ptr->skip_size = skip_size_org;
- return 2;
- }
- if (bmp_ptr->pal_ptr != NULL) {
- FX_Free(bmp_ptr->pal_ptr);
- bmp_ptr->pal_ptr = NULL;
- }
- bmp_ptr->pal_ptr = FX_Alloc(FX_DWORD, bmp_ptr->pal_num);
- BMP_PTR_NOT_NULL(bmp_ptr->pal_ptr, bmp_ptr);
- int32_t src_pal_index = 0;
- if (bmp_ptr->pal_type == BMP_PAL_OLD) {
- while (src_pal_index < bmp_ptr->pal_num) {
- bmp_ptr->pal_ptr[src_pal_index++] = BMP_PAL_ENCODE(
- 0x00, src_pal_ptr[2], src_pal_ptr[1], src_pal_ptr[0]);
- src_pal_ptr += 3;
- }
- } else {
- while (src_pal_index < bmp_ptr->pal_num) {
- bmp_ptr->pal_ptr[src_pal_index++] = BMP_PAL_ENCODE(
- src_pal_ptr[3], src_pal_ptr[2], src_pal_ptr[1], src_pal_ptr[0]);
- src_pal_ptr += 4;
- }
- }
- }
- if (bmp_ptr->bmp_header_ptr->bfOffBits <
- 14 + bmp_ptr->img_ifh_size +
- bmp_ptr->pal_num * (bmp_ptr->pal_type ? 3 : 4)) {
- bmp_ptr->bmp_header_ptr->bfOffBits =
- 14 + bmp_ptr->img_ifh_size +
- bmp_ptr->pal_num * (bmp_ptr->pal_type ? 3 : 4);
- }
- _bmp_save_decoding_status(bmp_ptr, BMP_D_STATUS_DATA_PRE);
- }
- return 1;
-}
-int32_t _bmp_decode_image(bmp_decompress_struct_p bmp_ptr) {
- if (bmp_ptr->decode_status == BMP_D_STATUS_DATA_PRE) {
- bmp_ptr->avail_in = 0;
- if (!bmp_ptr->_bmp_get_data_position_fn(
- bmp_ptr, bmp_ptr->bmp_header_ptr->bfOffBits)) {
- bmp_ptr->decode_status = BMP_D_STATUS_TAIL;
- _bmp_error(bmp_ptr, "The Bmp File Is Corrupt, Unexpected Stream Offset");
- return 0;
- }
- bmp_ptr->row_num = 0;
- _bmp_save_decoding_status(bmp_ptr, BMP_D_STATUS_DATA);
- }
- if (bmp_ptr->decode_status == BMP_D_STATUS_DATA) {
- switch (bmp_ptr->compress_flag) {
- case BMP_RGB:
- case BMP_BITFIELDS:
- return _bmp_decode_rgb(bmp_ptr);
- case BMP_RLE8:
- return _bmp_decode_rle8(bmp_ptr);
- case BMP_RLE4:
- return _bmp_decode_rle4(bmp_ptr);
- }
- }
- _bmp_error(bmp_ptr, "Any Uncontrol Error");
- return 0;
-}
-int32_t _bmp_decode_rgb(bmp_decompress_struct_p bmp_ptr) {
- uint8_t* row_buf = bmp_ptr->out_row_buffer;
- uint8_t* des_buf = NULL;
- while (bmp_ptr->row_num < bmp_ptr->height) {
- if (_bmp_read_data(bmp_ptr, &des_buf, bmp_ptr->src_row_bytes) == NULL) {
- return 2;
- }
- _bmp_save_decoding_status(bmp_ptr, BMP_D_STATUS_DATA);
- switch (bmp_ptr->bitCounts) {
- case 1: {
- for (int32_t col = 0; col < bmp_ptr->width; col++) {
- *row_buf++ = des_buf[col >> 3] & (0x80 >> (col % 8)) ? 0x01 : 0x00;
- }
- } break;
- case 4: {
- for (int32_t col = 0; col < bmp_ptr->width; col++) {
- *row_buf++ = (col & 0x01) ? (des_buf[col >> 1] & 0x0F)
- : ((des_buf[col >> 1] & 0xF0) >> 4);
- }
- } break;
-#ifdef BMP_SUPPORT_BITFIELD
- case 16: {
- FX_WORD* buf = (FX_WORD*)des_buf;
- uint8_t blue_bits = 0;
- uint8_t green_bits = 0;
- uint8_t red_bits = 0;
- for (int32_t i = 0; i < 16; i++) {
- if ((bmp_ptr->mask_blue >> i) & 0x01) {
- blue_bits++;
- }
- if ((bmp_ptr->mask_green >> i) & 0x01) {
- green_bits++;
- }
- if ((bmp_ptr->mask_red >> i) & 0x01) {
- red_bits++;
- }
- }
- green_bits += blue_bits;
- red_bits += green_bits;
- blue_bits = 8 - blue_bits;
- green_bits -= 8;
- red_bits -= 8;
- for (int32_t col = 0; col < bmp_ptr->width; col++) {
- *buf = _GetWord_LSBFirst((uint8_t*)buf);
- *row_buf++ = (uint8_t)((*buf & bmp_ptr->mask_blue) << blue_bits);
- *row_buf++ = (uint8_t)((*buf & bmp_ptr->mask_green) >> green_bits);
- *row_buf++ = (uint8_t)((*buf++ & bmp_ptr->mask_red) >> red_bits);
- }
- } break;
-#endif
- case 8:
- case 24:
- case 32:
- FXSYS_memcpy(bmp_ptr->out_row_buffer, des_buf, bmp_ptr->src_row_bytes);
- break;
- }
- row_buf = bmp_ptr->out_row_buffer;
- bmp_ptr->_bmp_get_row_fn(bmp_ptr,
- bmp_ptr->imgTB_flag
- ? bmp_ptr->row_num++
- : (bmp_ptr->height - 1 - bmp_ptr->row_num++),
- bmp_ptr->out_row_buffer);
- }
- _bmp_save_decoding_status(bmp_ptr, BMP_D_STATUS_TAIL);
- return 1;
-}
-int32_t _bmp_decode_rle8(bmp_decompress_struct_p bmp_ptr) {
- uint8_t* first_byte_ptr = NULL;
- uint8_t* second_byte_ptr = NULL;
- bmp_ptr->col_num = 0;
- while (TRUE) {
- FX_DWORD skip_size_org = bmp_ptr->skip_size;
- if (_bmp_read_data(bmp_ptr, &first_byte_ptr, 1) == NULL) {
- return 2;
- }
- switch (*first_byte_ptr) {
- case RLE_MARKER: {
- if (_bmp_read_data(bmp_ptr, &first_byte_ptr, 1) == NULL) {
- bmp_ptr->skip_size = skip_size_org;
- return 2;
- }
- switch (*first_byte_ptr) {
- case RLE_EOL: {
- if (bmp_ptr->row_num >= bmp_ptr->height) {
- _bmp_save_decoding_status(bmp_ptr, BMP_D_STATUS_TAIL);
- _bmp_error(bmp_ptr, "The Bmp File Is Corrupt");
- return 0;
- }
- bmp_ptr->_bmp_get_row_fn(
- bmp_ptr, bmp_ptr->imgTB_flag
- ? bmp_ptr->row_num++
- : (bmp_ptr->height - 1 - bmp_ptr->row_num++),
- bmp_ptr->out_row_buffer);
- bmp_ptr->col_num = 0;
- FXSYS_memset(bmp_ptr->out_row_buffer, 0, bmp_ptr->out_row_bytes);
- _bmp_save_decoding_status(bmp_ptr, BMP_D_STATUS_DATA);
- continue;
- }
- case RLE_EOI: {
- if (bmp_ptr->row_num < bmp_ptr->height) {
- bmp_ptr->_bmp_get_row_fn(
- bmp_ptr, bmp_ptr->imgTB_flag
- ? bmp_ptr->row_num++
- : (bmp_ptr->height - 1 - bmp_ptr->row_num++),
- bmp_ptr->out_row_buffer);
- }
- _bmp_save_decoding_status(bmp_ptr, BMP_D_STATUS_TAIL);
- return 1;
- }
- case RLE_DELTA: {
- uint8_t* delta_ptr;
- if (_bmp_read_data(bmp_ptr, &delta_ptr, 2) == NULL) {
- bmp_ptr->skip_size = skip_size_org;
- return 2;
- }
- bmp_ptr->col_num += (int32_t)delta_ptr[0];
- int32_t bmp_row_num_next = bmp_ptr->row_num + (int32_t)delta_ptr[1];
- if (bmp_ptr->col_num >= bmp_ptr->out_row_bytes ||
- bmp_row_num_next >= bmp_ptr->height) {
- _bmp_error(bmp_ptr, "The Bmp File Is Corrupt Or Not Supported");
- return 0;
- }
- while (bmp_ptr->row_num < bmp_row_num_next) {
- FXSYS_memset(bmp_ptr->out_row_buffer, 0, bmp_ptr->out_row_bytes);
- bmp_ptr->_bmp_get_row_fn(
- bmp_ptr, bmp_ptr->imgTB_flag
- ? bmp_ptr->row_num++
- : (bmp_ptr->height - 1 - bmp_ptr->row_num++),
- bmp_ptr->out_row_buffer);
- }
- } break;
- default: {
- if ((int32_t)(*first_byte_ptr) >
- bmp_ptr->src_row_bytes - bmp_ptr->col_num) {
- _bmp_error(bmp_ptr, "The Bmp File Is Corrupt");
- return 0;
- }
- if (_bmp_read_data(bmp_ptr, &second_byte_ptr,
- *first_byte_ptr & 1 ? *first_byte_ptr + 1
- : *first_byte_ptr) == NULL) {
- bmp_ptr->skip_size = skip_size_org;
- return 2;
- }
- FXSYS_memcpy(bmp_ptr->out_row_buffer + bmp_ptr->col_num,
- second_byte_ptr, *first_byte_ptr);
- bmp_ptr->col_num += (int32_t)(*first_byte_ptr);
- }
- }
- } break;
- default: {
- if (_bmp_read_data(bmp_ptr, &second_byte_ptr, 1) == NULL) {
- bmp_ptr->skip_size = skip_size_org;
- return 2;
- }
- if ((int32_t)(*first_byte_ptr) >
- bmp_ptr->src_row_bytes - bmp_ptr->col_num) {
- _bmp_error(bmp_ptr, "The Bmp File Is Corrupt");
- return 0;
- }
- FXSYS_memset(bmp_ptr->out_row_buffer + bmp_ptr->col_num,
- *second_byte_ptr, *first_byte_ptr);
- bmp_ptr->col_num += (int32_t)(*first_byte_ptr);
- }
- }
- }
- _bmp_error(bmp_ptr, "Any Uncontrol Error");
- return 0;
-}
-int32_t _bmp_decode_rle4(bmp_decompress_struct_p bmp_ptr) {
- uint8_t* first_byte_ptr = NULL;
- uint8_t* second_byte_ptr = NULL;
- bmp_ptr->col_num = 0;
- while (TRUE) {
- FX_DWORD skip_size_org = bmp_ptr->skip_size;
- if (_bmp_read_data(bmp_ptr, &first_byte_ptr, 1) == NULL) {
- return 2;
- }
- switch (*first_byte_ptr) {
- case RLE_MARKER: {
- if (_bmp_read_data(bmp_ptr, &first_byte_ptr, 1) == NULL) {
- bmp_ptr->skip_size = skip_size_org;
- return 2;
- }
- switch (*first_byte_ptr) {
- case RLE_EOL: {
- if (bmp_ptr->row_num >= bmp_ptr->height) {
- _bmp_save_decoding_status(bmp_ptr, BMP_D_STATUS_TAIL);
- _bmp_error(bmp_ptr, "The Bmp File Is Corrupt");
- return 0;
- }
- bmp_ptr->_bmp_get_row_fn(
- bmp_ptr, bmp_ptr->imgTB_flag
- ? bmp_ptr->row_num++
- : (bmp_ptr->height - 1 - bmp_ptr->row_num++),
- bmp_ptr->out_row_buffer);
- bmp_ptr->col_num = 0;
- FXSYS_memset(bmp_ptr->out_row_buffer, 0, bmp_ptr->out_row_bytes);
- _bmp_save_decoding_status(bmp_ptr, BMP_D_STATUS_DATA);
- continue;
- }
- case RLE_EOI: {
- if (bmp_ptr->row_num < bmp_ptr->height) {
- bmp_ptr->_bmp_get_row_fn(
- bmp_ptr, bmp_ptr->imgTB_flag
- ? bmp_ptr->row_num++
- : (bmp_ptr->height - 1 - bmp_ptr->row_num++),
- bmp_ptr->out_row_buffer);
- }
- _bmp_save_decoding_status(bmp_ptr, BMP_D_STATUS_TAIL);
- return 1;
- }
- case RLE_DELTA: {
- uint8_t* delta_ptr;
- if (_bmp_read_data(bmp_ptr, &delta_ptr, 2) == NULL) {
- bmp_ptr->skip_size = skip_size_org;
- return 2;
- }
- bmp_ptr->col_num += (int32_t)delta_ptr[0];
- int32_t bmp_row_num_next = bmp_ptr->row_num + (int32_t)delta_ptr[1];
- if (bmp_ptr->col_num >= bmp_ptr->out_row_bytes ||
- bmp_row_num_next >= bmp_ptr->height) {
- _bmp_error(bmp_ptr, "The Bmp File Is Corrupt Or Not Supported");
- return 0;
- }
- while (bmp_ptr->row_num < bmp_row_num_next) {
- FXSYS_memset(bmp_ptr->out_row_buffer, 0, bmp_ptr->out_row_bytes);
- bmp_ptr->_bmp_get_row_fn(
- bmp_ptr, bmp_ptr->imgTB_flag
- ? bmp_ptr->row_num++
- : (bmp_ptr->height - 1 - bmp_ptr->row_num++),
- bmp_ptr->out_row_buffer);
- }
- } break;
- default: {
- uint8_t size = (uint8_t)(((FX_WORD)(*first_byte_ptr) + 1) >> 1);
- if ((int32_t)*first_byte_ptr >=
- bmp_ptr->out_row_bytes - bmp_ptr->col_num) {
- if (size + (bmp_ptr->col_num >> 1) > bmp_ptr->src_row_bytes) {
- _bmp_error(bmp_ptr, "The Bmp File Is Corrupt");
- return 0;
- }
- *first_byte_ptr = bmp_ptr->out_row_bytes - bmp_ptr->col_num - 1;
- }
- if (_bmp_read_data(bmp_ptr, &second_byte_ptr,
- size & 1 ? size + 1 : size) == NULL) {
- bmp_ptr->skip_size = skip_size_org;
- return 2;
- }
- for (uint8_t i = 0; i < *first_byte_ptr; i++) {
- if (i & 0x01) {
- *(bmp_ptr->out_row_buffer + bmp_ptr->col_num++) =
- (*second_byte_ptr++ & 0x0F);
- } else {
- *(bmp_ptr->out_row_buffer + bmp_ptr->col_num++) =
- ((*second_byte_ptr & 0xF0) >> 4);
- }
- }
- }
- }
- } break;
- default: {
- if (_bmp_read_data(bmp_ptr, &second_byte_ptr, 1) == NULL) {
- bmp_ptr->skip_size = skip_size_org;
- return 2;
- }
- if ((int32_t)*first_byte_ptr >
- bmp_ptr->out_row_bytes - bmp_ptr->col_num) {
- uint8_t size = (uint8_t)(((FX_WORD)(*first_byte_ptr) + 1) >> 1);
- if (size + (bmp_ptr->col_num >> 1) > bmp_ptr->src_row_bytes) {
- _bmp_error(bmp_ptr, "The Bmp File Is Corrupt");
- return 0;
- }
- *first_byte_ptr = bmp_ptr->out_row_bytes - bmp_ptr->col_num - 1;
- }
- for (uint8_t i = 0; i < *first_byte_ptr; i++) {
- if (i & 0x01) {
- *(bmp_ptr->out_row_buffer + bmp_ptr->col_num++) =
- (*second_byte_ptr & 0x0F);
- } else {
- *(bmp_ptr->out_row_buffer + bmp_ptr->col_num++) =
- ((*second_byte_ptr & 0xF0) >> 4);
- }
- }
- }
- }
- }
- _bmp_error(bmp_ptr, "Any Uncontrol Error");
- return 0;
-}
-uint8_t* _bmp_read_data(bmp_decompress_struct_p bmp_ptr,
- uint8_t** des_buf_pp,
- FX_DWORD data_size) {
- if (bmp_ptr == NULL || bmp_ptr->avail_in < bmp_ptr->skip_size + data_size) {
- return NULL;
- }
- *des_buf_pp = bmp_ptr->next_in + bmp_ptr->skip_size;
- bmp_ptr->skip_size += data_size;
- return *des_buf_pp;
-}
-void _bmp_save_decoding_status(bmp_decompress_struct_p bmp_ptr,
- int32_t status) {
- bmp_ptr->decode_status = status;
- bmp_ptr->next_in += bmp_ptr->skip_size;
- bmp_ptr->avail_in -= bmp_ptr->skip_size;
- bmp_ptr->skip_size = 0;
-}
-void _bmp_input_buffer(bmp_decompress_struct_p bmp_ptr,
- uint8_t* src_buf,
- FX_DWORD src_size) {
- bmp_ptr->next_in = src_buf;
- bmp_ptr->avail_in = src_size;
- bmp_ptr->skip_size = 0;
-}
-FX_DWORD _bmp_get_avail_input(bmp_decompress_struct_p bmp_ptr,
- uint8_t** avial_buf_ptr) {
- if (avial_buf_ptr != NULL) {
- *avial_buf_ptr = NULL;
- if (bmp_ptr->avail_in > 0) {
- *avial_buf_ptr = bmp_ptr->next_in;
- }
- }
- return bmp_ptr->avail_in;
-}
-bmp_compress_struct_p _bmp_create_compress() {
- bmp_compress_struct_p bmp_ptr;
- bmp_ptr = FX_Alloc(bmp_compress_struct, 1);
- if (bmp_ptr) {
- FXSYS_memset(bmp_ptr, 0, sizeof(bmp_compress_struct));
- }
- return bmp_ptr;
-}
-void _bmp_destroy_compress(bmp_compress_struct_p bmp_ptr) {
- if (bmp_ptr) {
- if (bmp_ptr->src_free && bmp_ptr->src_buf) {
- FX_Free(bmp_ptr->src_buf);
- }
- FX_Free(bmp_ptr);
- }
-}
-static void WriteFileHeader(BmpFileHeaderPtr head_ptr, uint8_t* dst_buf) {
- FX_DWORD offset;
- offset = 0;
- _SetWord_LSBFirst(&dst_buf[offset], head_ptr->bfType);
- offset += 2;
- _SetDWord_LSBFirst(&dst_buf[offset], head_ptr->bfSize);
- offset += 4;
- _SetWord_LSBFirst(&dst_buf[offset], head_ptr->bfReserved1);
- offset += 2;
- _SetWord_LSBFirst(&dst_buf[offset], head_ptr->bfReserved2);
- offset += 2;
- _SetDWord_LSBFirst(&dst_buf[offset], head_ptr->bfOffBits);
- offset += 4;
-}
-static void WriteInfoHeader(BmpInfoHeaderPtr info_head_ptr, uint8_t* dst_buf) {
- FX_DWORD offset;
- offset = sizeof(BmpFileHeader);
- _SetDWord_LSBFirst(&dst_buf[offset], info_head_ptr->biSize);
- offset += 4;
- _SetDWord_LSBFirst(&dst_buf[offset], (FX_DWORD)info_head_ptr->biWidth);
- offset += 4;
- _SetDWord_LSBFirst(&dst_buf[offset], (FX_DWORD)info_head_ptr->biHeight);
- offset += 4;
- _SetWord_LSBFirst(&dst_buf[offset], info_head_ptr->biPlanes);
- offset += 2;
- _SetWord_LSBFirst(&dst_buf[offset], info_head_ptr->biBitCount);
- offset += 2;
- _SetDWord_LSBFirst(&dst_buf[offset], info_head_ptr->biCompression);
- offset += 4;
- _SetDWord_LSBFirst(&dst_buf[offset], info_head_ptr->biSizeImage);
- offset += 4;
- _SetDWord_LSBFirst(&dst_buf[offset],
- (FX_DWORD)info_head_ptr->biXPelsPerMeter);
- offset += 4;
- _SetDWord_LSBFirst(&dst_buf[offset],
- (FX_DWORD)info_head_ptr->biYPelsPerMeter);
- offset += 4;
- _SetDWord_LSBFirst(&dst_buf[offset], info_head_ptr->biClrUsed);
- offset += 4;
- _SetDWord_LSBFirst(&dst_buf[offset], info_head_ptr->biClrImportant);
- offset += 4;
-}
-#ifdef BMP_SUPPORT_BITFIELD
-static void _bmp_encode_bitfields(bmp_compress_struct_p bmp_ptr,
- uint8_t*& dst_buf,
- FX_DWORD& dst_size) {
- if (bmp_ptr->info_header.biBitCount != 16 &&
- bmp_ptr->info_header.biBitCount != 32) {
- return;
- }
- FX_DWORD size, dst_pos, i;
- size = bmp_ptr->src_pitch * bmp_ptr->src_row *
- bmp_ptr->info_header.biBitCount / 16;
- dst_pos = bmp_ptr->file_header.bfOffBits;
- dst_size += size;
- dst_buf = FX_Realloc(uint8_t, dst_buf, dst_size);
- if (dst_buf == NULL) {
- return;
- }
- FXSYS_memset(&dst_buf[dst_pos], 0, size);
- FX_DWORD mask_red;
- FX_DWORD mask_green;
- FX_DWORD mask_blue;
- mask_red = 0x7C00;
- mask_green = 0x03E0;
- mask_blue = 0x001F;
- if (bmp_ptr->info_header.biCompression == BMP_BITFIELDS) {
- if (bmp_ptr->bit_type == BMP_BIT_565) {
- mask_red = 0xF800;
- mask_green = 0x07E0;
- mask_blue = 0x001F;
- }
- if (bmp_ptr->info_header.biBitCount == 32) {
- mask_red = 0xFF0000;
- mask_green = 0x00FF00;
- mask_blue = 0x0000FF;
- }
- _SetDWord_LSBFirst(&dst_buf[dst_pos], mask_red);
- dst_pos += 4;
- _SetDWord_LSBFirst(&dst_buf[dst_pos], mask_green);
- dst_pos += 4;
- _SetDWord_LSBFirst(&dst_buf[dst_pos], mask_blue);
- dst_pos += 4;
- bmp_ptr->file_header.bfOffBits = dst_pos;
- }
- uint8_t blue_bits = 0;
- uint8_t green_bits = 0;
- uint8_t red_bits = 0;
- for (i = 0; i < bmp_ptr->info_header.biBitCount; i++) {
- if ((mask_blue >> i) & 0x01) {
- blue_bits++;
- }
- if ((mask_green >> i) & 0x01) {
- green_bits++;
- }
- if ((mask_red >> i) & 0x01) {
- red_bits++;
- }
- }
- green_bits += blue_bits;
- red_bits += green_bits;
- blue_bits = 8 - blue_bits;
- green_bits -= 8;
- red_bits -= 8;
- i = 0;
- for (int32_t row_num = bmp_ptr->src_row - 1; row_num > -1; row_num--, i = 0) {
- while (i < bmp_ptr->src_width * bmp_ptr->src_bpp / 8) {
- uint8_t b = bmp_ptr->src_buf[row_num * bmp_ptr->src_pitch + i++];
- uint8_t g = bmp_ptr->src_buf[row_num * bmp_ptr->src_pitch + i++];
- uint8_t r = bmp_ptr->src_buf[row_num * bmp_ptr->src_pitch + i++];
- if (bmp_ptr->src_bpp == 32) {
- i++;
- }
- FX_DWORD pix_val = 0;
- pix_val |= (b >> blue_bits) & mask_blue;
- pix_val |= (g << green_bits) & mask_green;
- pix_val |= (r << red_bits) & mask_red;
- if (bmp_ptr->info_header.biBitCount == 16) {
- _SetWord_LSBFirst(&dst_buf[dst_pos], (FX_WORD)pix_val);
- dst_pos += 2;
- } else {
- _SetDWord_LSBFirst(&dst_buf[dst_pos], pix_val);
- dst_pos += 4;
- }
- }
- }
- dst_size = dst_pos;
-}
-#endif
-static void _bmp_encode_rgb(bmp_compress_struct_p bmp_ptr,
- uint8_t*& dst_buf,
- FX_DWORD& dst_size) {
- if (bmp_ptr->info_header.biBitCount == 16) {
-#ifdef BMP_SUPPORT_BITFIELD
- _bmp_encode_bitfields(bmp_ptr, dst_buf, dst_size);
-#endif
- return;
- }
- FX_DWORD size, dst_pos;
- FX_DWORD dst_pitch =
- (bmp_ptr->src_width * bmp_ptr->info_header.biBitCount + 31) / 32 * 4;
- size = dst_pitch * bmp_ptr->src_row;
- dst_pos = bmp_ptr->file_header.bfOffBits;
- dst_size += size;
- dst_buf = FX_Realloc(uint8_t, dst_buf, dst_size);
- if (dst_buf == NULL) {
- return;
- }
- FXSYS_memset(&dst_buf[dst_pos], 0, size);
- for (int32_t row_num = bmp_ptr->src_row - 1; row_num > -1; row_num--) {
- FXSYS_memcpy(&dst_buf[dst_pos],
- &bmp_ptr->src_buf[row_num * bmp_ptr->src_pitch],
- bmp_ptr->src_pitch);
- dst_pos += dst_pitch;
- }
- dst_size = dst_pos;
-}
-static uint8_t _bmp_rle8_search(const uint8_t* buf, int32_t len) {
- uint8_t num;
- num = 1;
- while (num < len) {
- if (buf[num - 1] != buf[num] || num == 0xFF) {
- break;
- }
- num++;
- }
- return num;
-}
-static void _bmp_encode_rle8(bmp_compress_struct_p bmp_ptr,
- uint8_t*& dst_buf,
- FX_DWORD& dst_size) {
- FX_DWORD size, dst_pos, index;
- uint8_t rle[2] = {0};
- size = bmp_ptr->src_pitch * bmp_ptr->src_row * 2;
- dst_pos = bmp_ptr->file_header.bfOffBits;
- dst_size += size;
- dst_buf = FX_Realloc(uint8_t, dst_buf, dst_size);
- if (dst_buf == NULL) {
- return;
- }
- FXSYS_memset(&dst_buf[dst_pos], 0, size);
- for (int32_t row_num = bmp_ptr->src_row - 1, i = 0; row_num > -1;) {
- index = row_num * bmp_ptr->src_pitch;
- rle[0] = _bmp_rle8_search(&bmp_ptr->src_buf[index + i], size - index - i);
- rle[1] = bmp_ptr->src_buf[index + i];
- if (i + rle[0] >= (int32_t)bmp_ptr->src_pitch) {
- rle[0] = uint8_t(bmp_ptr->src_pitch - i);
- if (rle[0]) {
- dst_buf[dst_pos++] = rle[0];
- dst_buf[dst_pos++] = rle[1];
- }
- dst_buf[dst_pos++] = RLE_MARKER;
- dst_buf[dst_pos++] = RLE_EOL;
- i = 0;
- row_num--;
- } else {
- i += rle[0];
- dst_buf[dst_pos++] = rle[0];
- dst_buf[dst_pos++] = rle[1];
- }
- }
- dst_buf[dst_pos++] = RLE_MARKER;
- dst_buf[dst_pos++] = RLE_EOI;
- dst_size = dst_pos;
-}
-static uint8_t _bmp_rle4_search(const uint8_t* buf, int32_t len) {
- uint8_t num;
- num = 2;
- while (num < len) {
- if (buf[num - 2] != buf[num] || num == 0xFF) {
- break;
- }
- num++;
- }
- return num;
-}
-static void _bmp_encode_rle4(bmp_compress_struct_p bmp_ptr,
- uint8_t*& dst_buf,
- FX_DWORD& dst_size) {
- FX_DWORD size, dst_pos, index;
- uint8_t rle[2] = {0};
- size = bmp_ptr->src_pitch * bmp_ptr->src_row;
- dst_pos = bmp_ptr->file_header.bfOffBits;
- dst_size += size;
- dst_buf = FX_Realloc(uint8_t, dst_buf, dst_size);
- if (dst_buf == NULL) {
- return;
- }
- FXSYS_memset(&dst_buf[dst_pos], 0, size);
- for (int32_t row_num = bmp_ptr->src_row - 1, i = 0; row_num > -1;
- rle[1] = 0) {
- index = row_num * bmp_ptr->src_pitch;
- rle[0] = _bmp_rle4_search(&bmp_ptr->src_buf[index + i], size - index - i);
- rle[1] |= (bmp_ptr->src_buf[index + i] & 0x0f) << 4;
- rle[1] |= bmp_ptr->src_buf[index + i + 1] & 0x0f;
- if (i + rle[0] >= (int32_t)bmp_ptr->src_pitch) {
- rle[0] = uint8_t(bmp_ptr->src_pitch - i);
- if (rle[0]) {
- dst_buf[dst_pos++] = rle[0];
- dst_buf[dst_pos++] = rle[1];
- }
- dst_buf[dst_pos++] = RLE_MARKER;
- dst_buf[dst_pos++] = RLE_EOL;
- i = 0;
- row_num--;
- } else {
- i += rle[0];
- dst_buf[dst_pos++] = rle[0];
- dst_buf[dst_pos++] = rle[1];
- }
- }
- dst_buf[dst_pos++] = RLE_MARKER;
- dst_buf[dst_pos++] = RLE_EOI;
- dst_size = dst_pos;
-}
-FX_BOOL _bmp_encode_image(bmp_compress_struct_p bmp_ptr,
- uint8_t*& dst_buf,
- FX_DWORD& dst_size) {
- FX_DWORD head_size = sizeof(BmpFileHeader) + sizeof(BmpInfoHeader);
- FX_DWORD pal_size = sizeof(FX_DWORD) * bmp_ptr->pal_num;
- if (bmp_ptr->info_header.biClrUsed > 0 &&
- bmp_ptr->info_header.biClrUsed < bmp_ptr->pal_num) {
- pal_size = sizeof(FX_DWORD) * bmp_ptr->info_header.biClrUsed;
- }
- dst_size = head_size + sizeof(FX_DWORD) * bmp_ptr->pal_num;
- dst_buf = FX_TryAlloc(uint8_t, dst_size);
- if (dst_buf == NULL) {
- return FALSE;
- }
- FXSYS_memset(dst_buf, 0, dst_size);
- bmp_ptr->file_header.bfOffBits = head_size;
- if (bmp_ptr->pal_ptr && pal_size) {
- FXSYS_memcpy(&dst_buf[head_size], bmp_ptr->pal_ptr, pal_size);
- bmp_ptr->file_header.bfOffBits += pal_size;
- }
- WriteInfoHeader(&bmp_ptr->info_header, dst_buf);
- switch (bmp_ptr->info_header.biCompression) {
- case BMP_RGB:
- _bmp_encode_rgb(bmp_ptr, dst_buf, dst_size);
- break;
- case BMP_BITFIELDS:
-#ifdef BMP_SUPPORT_BITFIELD
- _bmp_encode_bitfields(bmp_ptr, dst_buf, dst_size);
-#endif
- break;
- case BMP_RLE8:
- _bmp_encode_rle8(bmp_ptr, dst_buf, dst_size);
- break;
- case BMP_RLE4:
- _bmp_encode_rle4(bmp_ptr, dst_buf, dst_size);
- break;
- default:;
- }
- bmp_ptr->file_header.bfSize = dst_size;
- WriteFileHeader(&bmp_ptr->file_header, dst_buf);
- return TRUE;
-}
+// Copyright 2014 PDFium Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. + +// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com + +#include "fx_bmp.h" + +#include <algorithm> + +namespace { + +const size_t kBmpCoreHeaderSize = 12; +const size_t kBmpInfoHeaderSize = 40; + +} // namespace + +FX_DWORD _GetDWord_LSBFirst(uint8_t* p) { + return p[0] | (p[1] << 8) | (p[2] << 16) | (p[3] << 24); +} +FX_WORD _GetWord_LSBFirst(uint8_t* p) { + return p[0] | (p[1] << 8); +} +void _SetDWord_LSBFirst(uint8_t* p, FX_DWORD v) { + p[0] = (uint8_t)v; + p[1] = (uint8_t)(v >> 8); + p[2] = (uint8_t)(v >> 16); + p[3] = (uint8_t)(v >> 24); +} +void _SetWord_LSBFirst(uint8_t* p, FX_WORD v) { + p[0] = (uint8_t)v; + p[1] = (uint8_t)(v >> 8); +} +void _bmp_error(bmp_decompress_struct_p bmp_ptr, const FX_CHAR* err_msg) { + if (bmp_ptr != NULL && bmp_ptr->_bmp_error_fn != NULL) { + bmp_ptr->_bmp_error_fn(bmp_ptr, err_msg); + } +} +bmp_decompress_struct_p _bmp_create_decompress() { + bmp_decompress_struct_p bmp_ptr = FX_Alloc(bmp_decompress_struct, 1); + if (bmp_ptr == NULL) { + return NULL; + } + FXSYS_memset(bmp_ptr, 0, sizeof(bmp_decompress_struct)); + bmp_ptr->decode_status = BMP_D_STATUS_HEADER; + bmp_ptr->bmp_header_ptr = FX_Alloc(BmpFileHeader, 1); + return bmp_ptr; +} +void _bmp_destroy_decompress(bmp_decompress_struct_pp bmp_ptr_ptr) { + if (bmp_ptr_ptr == NULL || *bmp_ptr_ptr == NULL) { + return; + } + bmp_decompress_struct_p bmp_ptr = *bmp_ptr_ptr; + *bmp_ptr_ptr = NULL; + if (bmp_ptr->out_row_buffer != NULL) { + FX_Free(bmp_ptr->out_row_buffer); + } + if (bmp_ptr->pal_ptr != NULL) { + FX_Free(bmp_ptr->pal_ptr); + } + if (bmp_ptr->bmp_header_ptr != NULL) { + FX_Free(bmp_ptr->bmp_header_ptr); + } + FX_Free(bmp_ptr); +} +int32_t _bmp_read_header(bmp_decompress_struct_p bmp_ptr) { + if (bmp_ptr == NULL) { + return 0; + } + FX_DWORD skip_size_org = bmp_ptr->skip_size; + if (bmp_ptr->decode_status == BMP_D_STATUS_HEADER) { + ASSERT(sizeof(BmpFileHeader) == 14); + BmpFileHeader* bmp_header_ptr = NULL; + if (_bmp_read_data(bmp_ptr, (uint8_t**)&bmp_header_ptr, 14) == NULL) { + return 2; + } + bmp_ptr->bmp_header_ptr->bfType = + _GetWord_LSBFirst((uint8_t*)&bmp_header_ptr->bfType); + bmp_ptr->bmp_header_ptr->bfOffBits = + _GetDWord_LSBFirst((uint8_t*)&bmp_header_ptr->bfOffBits); + bmp_ptr->data_size = _GetDWord_LSBFirst((uint8_t*)&bmp_header_ptr->bfSize); + if (bmp_ptr->bmp_header_ptr->bfType != BMP_SIGNATURE) { + _bmp_error(bmp_ptr, "Not A Bmp Image"); + return 0; + } + if (bmp_ptr->avail_in < sizeof(FX_DWORD)) { + bmp_ptr->skip_size = skip_size_org; + return 2; + } + bmp_ptr->img_ifh_size = + _GetDWord_LSBFirst(bmp_ptr->next_in + bmp_ptr->skip_size); + bmp_ptr->pal_type = 0; + static_assert(sizeof(BmpCoreHeader) == kBmpCoreHeaderSize, + "BmpCoreHeader has wrong size"); + static_assert(sizeof(BmpInfoHeader) == kBmpInfoHeaderSize, + "BmpInfoHeader has wrong size"); + switch (bmp_ptr->img_ifh_size) { + case kBmpCoreHeaderSize: { + bmp_ptr->pal_type = 1; + BmpCoreHeaderPtr bmp_core_header_ptr = NULL; + if (_bmp_read_data(bmp_ptr, (uint8_t**)&bmp_core_header_ptr, + bmp_ptr->img_ifh_size) == NULL) { + bmp_ptr->skip_size = skip_size_org; + return 2; + } + bmp_ptr->width = (FX_DWORD)_GetWord_LSBFirst( + (uint8_t*)&bmp_core_header_ptr->bcWidth); + bmp_ptr->height = (FX_DWORD)_GetWord_LSBFirst( + (uint8_t*)&bmp_core_header_ptr->bcHeight); + bmp_ptr->bitCounts = + _GetWord_LSBFirst((uint8_t*)&bmp_core_header_ptr->bcBitCount); + bmp_ptr->compress_flag = BMP_RGB; + bmp_ptr->imgTB_flag = FALSE; + } break; + case kBmpInfoHeaderSize: { + BmpInfoHeaderPtr bmp_info_header_ptr = NULL; + if (_bmp_read_data(bmp_ptr, (uint8_t**)&bmp_info_header_ptr, + bmp_ptr->img_ifh_size) == NULL) { + bmp_ptr->skip_size = skip_size_org; + return 2; + } + bmp_ptr->width = + _GetDWord_LSBFirst((uint8_t*)&bmp_info_header_ptr->biWidth); + bmp_ptr->height = + _GetDWord_LSBFirst((uint8_t*)&bmp_info_header_ptr->biHeight); + bmp_ptr->bitCounts = + _GetWord_LSBFirst((uint8_t*)&bmp_info_header_ptr->biBitCount); + bmp_ptr->compress_flag = + _GetDWord_LSBFirst((uint8_t*)&bmp_info_header_ptr->biCompression); + bmp_ptr->color_used = + _GetDWord_LSBFirst((uint8_t*)&bmp_info_header_ptr->biClrUsed); + bmp_ptr->dpi_x = (int32_t)_GetDWord_LSBFirst( + (uint8_t*)&bmp_info_header_ptr->biXPelsPerMeter); + bmp_ptr->dpi_y = (int32_t)_GetDWord_LSBFirst( + (uint8_t*)&bmp_info_header_ptr->biYPelsPerMeter); + if (bmp_ptr->height < 0) { + bmp_ptr->height = -bmp_ptr->height; + bmp_ptr->imgTB_flag = TRUE; + } + } break; + default: { + if (bmp_ptr->img_ifh_size > + std::min(kBmpInfoHeaderSize, sizeof(BmpInfoHeader))) { + BmpInfoHeaderPtr bmp_info_header_ptr = NULL; + if (_bmp_read_data(bmp_ptr, (uint8_t**)&bmp_info_header_ptr, + bmp_ptr->img_ifh_size) == NULL) { + bmp_ptr->skip_size = skip_size_org; + return 2; + } + FX_WORD biPlanes; + bmp_ptr->width = + _GetDWord_LSBFirst((uint8_t*)&bmp_info_header_ptr->biWidth); + bmp_ptr->height = + _GetDWord_LSBFirst((uint8_t*)&bmp_info_header_ptr->biHeight); + bmp_ptr->bitCounts = + _GetWord_LSBFirst((uint8_t*)&bmp_info_header_ptr->biBitCount); + bmp_ptr->compress_flag = + _GetDWord_LSBFirst((uint8_t*)&bmp_info_header_ptr->biCompression); + bmp_ptr->color_used = + _GetDWord_LSBFirst((uint8_t*)&bmp_info_header_ptr->biClrUsed); + biPlanes = + _GetWord_LSBFirst((uint8_t*)&bmp_info_header_ptr->biPlanes); + bmp_ptr->dpi_x = _GetDWord_LSBFirst( + (uint8_t*)&bmp_info_header_ptr->biXPelsPerMeter); + bmp_ptr->dpi_y = _GetDWord_LSBFirst( + (uint8_t*)&bmp_info_header_ptr->biYPelsPerMeter); + if (bmp_ptr->height < 0) { + bmp_ptr->height = -bmp_ptr->height; + bmp_ptr->imgTB_flag = TRUE; + } + if (bmp_ptr->compress_flag == BMP_RGB && biPlanes == 1 && + bmp_ptr->color_used == 0) { + break; + } + } + _bmp_error(bmp_ptr, "Unsupported Bmp File"); + return 0; + } + } + ASSERT(bmp_ptr->width > 0); + ASSERT(bmp_ptr->compress_flag <= BMP_BITFIELDS); + switch (bmp_ptr->bitCounts) { + case 1: + case 4: + case 8: + case 16: + case 24: { + if (bmp_ptr->color_used > ((FX_DWORD)1) << bmp_ptr->bitCounts) { + _bmp_error(bmp_ptr, "The Bmp File Is Corrupt"); + return 0; + } + } + case 32: { + if (bmp_ptr->width <= 0 || bmp_ptr->compress_flag > BMP_BITFIELDS) { + _bmp_error(bmp_ptr, "The Bmp File Is Corrupt"); + return 0; + } + } break; + default: + _bmp_error(bmp_ptr, "The Bmp File Is Corrupt"); + return 0; + } + bmp_ptr->src_row_bytes = BMP_WIDTHBYTES(bmp_ptr->width, bmp_ptr->bitCounts); + switch (bmp_ptr->bitCounts) { + case 1: + case 4: + case 8: + bmp_ptr->out_row_bytes = BMP_WIDTHBYTES(bmp_ptr->width, 8); + bmp_ptr->components = 1; + break; + case 16: + case 24: + bmp_ptr->out_row_bytes = BMP_WIDTHBYTES(bmp_ptr->width, 24); + bmp_ptr->components = 3; + break; + case 32: + bmp_ptr->out_row_bytes = bmp_ptr->src_row_bytes; + bmp_ptr->components = 4; + break; + } + if (bmp_ptr->out_row_buffer != NULL) { + FX_Free(bmp_ptr->out_row_buffer); + bmp_ptr->out_row_buffer = NULL; + } + bmp_ptr->out_row_buffer = FX_Alloc(uint8_t, bmp_ptr->out_row_bytes); + BMP_PTR_NOT_NULL(bmp_ptr->out_row_buffer, bmp_ptr); + FXSYS_memset(bmp_ptr->out_row_buffer, 0, bmp_ptr->out_row_bytes); + _bmp_save_decoding_status(bmp_ptr, BMP_D_STATUS_PAL); + } + if (bmp_ptr->decode_status == BMP_D_STATUS_PAL) { + skip_size_org = bmp_ptr->skip_size; +#ifdef BMP_SUPPORT_BITFIELD + if (bmp_ptr->compress_flag == BMP_BITFIELDS) { + if (bmp_ptr->bitCounts != 16 && bmp_ptr->bitCounts != 32) { + _bmp_error(bmp_ptr, "The Bmp File Is Corrupt"); + return 0; + } + FX_DWORD* mask; + if (_bmp_read_data(bmp_ptr, (uint8_t**)&mask, 3 * sizeof(FX_DWORD)) == + NULL) { + bmp_ptr->skip_size = skip_size_org; + return 2; + } + bmp_ptr->mask_red = _GetDWord_LSBFirst((uint8_t*)&mask[0]); + bmp_ptr->mask_green = _GetDWord_LSBFirst((uint8_t*)&mask[1]); + bmp_ptr->mask_blue = _GetDWord_LSBFirst((uint8_t*)&mask[2]); + if (bmp_ptr->mask_red & bmp_ptr->mask_green || + bmp_ptr->mask_red & bmp_ptr->mask_blue || + bmp_ptr->mask_green & bmp_ptr->mask_blue) { + _bmp_error(bmp_ptr, "The Bitfield Bmp File Is Corrupt"); + return 0; + } + if (bmp_ptr->bmp_header_ptr->bfOffBits < 26 + bmp_ptr->img_ifh_size) { + bmp_ptr->bmp_header_ptr->bfOffBits = 26 + bmp_ptr->img_ifh_size; + } + _bmp_save_decoding_status(bmp_ptr, BMP_D_STATUS_DATA_PRE); + return 1; + } else if (bmp_ptr->bitCounts == 16) { + bmp_ptr->mask_red = 0x7C00; + bmp_ptr->mask_green = 0x03E0; + bmp_ptr->mask_blue = 0x001F; + } +#else + if (bmp_ptr->compress_flag == BMP_BITFIELDS || bmp_ptr->bitCounts == 16) { + _bmp_error(bmp_ptr, "Unsupported Bitfield Bmp File"); + return 0; + } +#endif + bmp_ptr->pal_num = 0; + if (bmp_ptr->bitCounts < 16) { + bmp_ptr->pal_num = 1 << bmp_ptr->bitCounts; + if (bmp_ptr->color_used != 0) { + bmp_ptr->pal_num = bmp_ptr->color_used; + } + uint8_t* src_pal_ptr = NULL; + FX_DWORD src_pal_size = bmp_ptr->pal_num * (bmp_ptr->pal_type ? 3 : 4); + if (_bmp_read_data(bmp_ptr, (uint8_t**)&src_pal_ptr, src_pal_size) == + NULL) { + bmp_ptr->skip_size = skip_size_org; + return 2; + } + if (bmp_ptr->pal_ptr != NULL) { + FX_Free(bmp_ptr->pal_ptr); + bmp_ptr->pal_ptr = NULL; + } + bmp_ptr->pal_ptr = FX_Alloc(FX_DWORD, bmp_ptr->pal_num); + BMP_PTR_NOT_NULL(bmp_ptr->pal_ptr, bmp_ptr); + int32_t src_pal_index = 0; + if (bmp_ptr->pal_type == BMP_PAL_OLD) { + while (src_pal_index < bmp_ptr->pal_num) { + bmp_ptr->pal_ptr[src_pal_index++] = BMP_PAL_ENCODE( + 0x00, src_pal_ptr[2], src_pal_ptr[1], src_pal_ptr[0]); + src_pal_ptr += 3; + } + } else { + while (src_pal_index < bmp_ptr->pal_num) { + bmp_ptr->pal_ptr[src_pal_index++] = BMP_PAL_ENCODE( + src_pal_ptr[3], src_pal_ptr[2], src_pal_ptr[1], src_pal_ptr[0]); + src_pal_ptr += 4; + } + } + } + if (bmp_ptr->bmp_header_ptr->bfOffBits < + 14 + bmp_ptr->img_ifh_size + + bmp_ptr->pal_num * (bmp_ptr->pal_type ? 3 : 4)) { + bmp_ptr->bmp_header_ptr->bfOffBits = + 14 + bmp_ptr->img_ifh_size + + bmp_ptr->pal_num * (bmp_ptr->pal_type ? 3 : 4); + } + _bmp_save_decoding_status(bmp_ptr, BMP_D_STATUS_DATA_PRE); + } + return 1; +} +int32_t _bmp_decode_image(bmp_decompress_struct_p bmp_ptr) { + if (bmp_ptr->decode_status == BMP_D_STATUS_DATA_PRE) { + bmp_ptr->avail_in = 0; + if (!bmp_ptr->_bmp_get_data_position_fn( + bmp_ptr, bmp_ptr->bmp_header_ptr->bfOffBits)) { + bmp_ptr->decode_status = BMP_D_STATUS_TAIL; + _bmp_error(bmp_ptr, "The Bmp File Is Corrupt, Unexpected Stream Offset"); + return 0; + } + bmp_ptr->row_num = 0; + _bmp_save_decoding_status(bmp_ptr, BMP_D_STATUS_DATA); + } + if (bmp_ptr->decode_status == BMP_D_STATUS_DATA) { + switch (bmp_ptr->compress_flag) { + case BMP_RGB: + case BMP_BITFIELDS: + return _bmp_decode_rgb(bmp_ptr); + case BMP_RLE8: + return _bmp_decode_rle8(bmp_ptr); + case BMP_RLE4: + return _bmp_decode_rle4(bmp_ptr); + } + } + _bmp_error(bmp_ptr, "Any Uncontrol Error"); + return 0; +} +int32_t _bmp_decode_rgb(bmp_decompress_struct_p bmp_ptr) { + uint8_t* row_buf = bmp_ptr->out_row_buffer; + uint8_t* des_buf = NULL; + while (bmp_ptr->row_num < bmp_ptr->height) { + if (_bmp_read_data(bmp_ptr, &des_buf, bmp_ptr->src_row_bytes) == NULL) { + return 2; + } + _bmp_save_decoding_status(bmp_ptr, BMP_D_STATUS_DATA); + switch (bmp_ptr->bitCounts) { + case 1: { + for (int32_t col = 0; col < bmp_ptr->width; col++) { + *row_buf++ = des_buf[col >> 3] & (0x80 >> (col % 8)) ? 0x01 : 0x00; + } + } break; + case 4: { + for (int32_t col = 0; col < bmp_ptr->width; col++) { + *row_buf++ = (col & 0x01) ? (des_buf[col >> 1] & 0x0F) + : ((des_buf[col >> 1] & 0xF0) >> 4); + } + } break; +#ifdef BMP_SUPPORT_BITFIELD + case 16: { + FX_WORD* buf = (FX_WORD*)des_buf; + uint8_t blue_bits = 0; + uint8_t green_bits = 0; + uint8_t red_bits = 0; + for (int32_t i = 0; i < 16; i++) { + if ((bmp_ptr->mask_blue >> i) & 0x01) { + blue_bits++; + } + if ((bmp_ptr->mask_green >> i) & 0x01) { + green_bits++; + } + if ((bmp_ptr->mask_red >> i) & 0x01) { + red_bits++; + } + } + green_bits += blue_bits; + red_bits += green_bits; + blue_bits = 8 - blue_bits; + green_bits -= 8; + red_bits -= 8; + for (int32_t col = 0; col < bmp_ptr->width; col++) { + *buf = _GetWord_LSBFirst((uint8_t*)buf); + *row_buf++ = (uint8_t)((*buf & bmp_ptr->mask_blue) << blue_bits); + *row_buf++ = (uint8_t)((*buf & bmp_ptr->mask_green) >> green_bits); + *row_buf++ = (uint8_t)((*buf++ & bmp_ptr->mask_red) >> red_bits); + } + } break; +#endif + case 8: + case 24: + case 32: + FXSYS_memcpy(bmp_ptr->out_row_buffer, des_buf, bmp_ptr->src_row_bytes); + break; + } + row_buf = bmp_ptr->out_row_buffer; + bmp_ptr->_bmp_get_row_fn(bmp_ptr, + bmp_ptr->imgTB_flag + ? bmp_ptr->row_num++ + : (bmp_ptr->height - 1 - bmp_ptr->row_num++), + bmp_ptr->out_row_buffer); + } + _bmp_save_decoding_status(bmp_ptr, BMP_D_STATUS_TAIL); + return 1; +} +int32_t _bmp_decode_rle8(bmp_decompress_struct_p bmp_ptr) { + uint8_t* first_byte_ptr = NULL; + uint8_t* second_byte_ptr = NULL; + bmp_ptr->col_num = 0; + while (TRUE) { + FX_DWORD skip_size_org = bmp_ptr->skip_size; + if (_bmp_read_data(bmp_ptr, &first_byte_ptr, 1) == NULL) { + return 2; + } + switch (*first_byte_ptr) { + case RLE_MARKER: { + if (_bmp_read_data(bmp_ptr, &first_byte_ptr, 1) == NULL) { + bmp_ptr->skip_size = skip_size_org; + return 2; + } + switch (*first_byte_ptr) { + case RLE_EOL: { + if (bmp_ptr->row_num >= bmp_ptr->height) { + _bmp_save_decoding_status(bmp_ptr, BMP_D_STATUS_TAIL); + _bmp_error(bmp_ptr, "The Bmp File Is Corrupt"); + return 0; + } + bmp_ptr->_bmp_get_row_fn( + bmp_ptr, bmp_ptr->imgTB_flag + ? bmp_ptr->row_num++ + : (bmp_ptr->height - 1 - bmp_ptr->row_num++), + bmp_ptr->out_row_buffer); + bmp_ptr->col_num = 0; + FXSYS_memset(bmp_ptr->out_row_buffer, 0, bmp_ptr->out_row_bytes); + _bmp_save_decoding_status(bmp_ptr, BMP_D_STATUS_DATA); + continue; + } + case RLE_EOI: { + if (bmp_ptr->row_num < bmp_ptr->height) { + bmp_ptr->_bmp_get_row_fn( + bmp_ptr, bmp_ptr->imgTB_flag + ? bmp_ptr->row_num++ + : (bmp_ptr->height - 1 - bmp_ptr->row_num++), + bmp_ptr->out_row_buffer); + } + _bmp_save_decoding_status(bmp_ptr, BMP_D_STATUS_TAIL); + return 1; + } + case RLE_DELTA: { + uint8_t* delta_ptr; + if (_bmp_read_data(bmp_ptr, &delta_ptr, 2) == NULL) { + bmp_ptr->skip_size = skip_size_org; + return 2; + } + bmp_ptr->col_num += (int32_t)delta_ptr[0]; + int32_t bmp_row_num_next = bmp_ptr->row_num + (int32_t)delta_ptr[1]; + if (bmp_ptr->col_num >= bmp_ptr->out_row_bytes || + bmp_row_num_next >= bmp_ptr->height) { + _bmp_error(bmp_ptr, "The Bmp File Is Corrupt Or Not Supported"); + return 0; + } + while (bmp_ptr->row_num < bmp_row_num_next) { + FXSYS_memset(bmp_ptr->out_row_buffer, 0, bmp_ptr->out_row_bytes); + bmp_ptr->_bmp_get_row_fn( + bmp_ptr, bmp_ptr->imgTB_flag + ? bmp_ptr->row_num++ + : (bmp_ptr->height - 1 - bmp_ptr->row_num++), + bmp_ptr->out_row_buffer); + } + } break; + default: { + if ((int32_t)(*first_byte_ptr) > + bmp_ptr->src_row_bytes - bmp_ptr->col_num) { + _bmp_error(bmp_ptr, "The Bmp File Is Corrupt"); + return 0; + } + if (_bmp_read_data(bmp_ptr, &second_byte_ptr, + *first_byte_ptr & 1 ? *first_byte_ptr + 1 + : *first_byte_ptr) == NULL) { + bmp_ptr->skip_size = skip_size_org; + return 2; + } + FXSYS_memcpy(bmp_ptr->out_row_buffer + bmp_ptr->col_num, + second_byte_ptr, *first_byte_ptr); + bmp_ptr->col_num += (int32_t)(*first_byte_ptr); + } + } + } break; + default: { + if (_bmp_read_data(bmp_ptr, &second_byte_ptr, 1) == NULL) { + bmp_ptr->skip_size = skip_size_org; + return 2; + } + if ((int32_t)(*first_byte_ptr) > + bmp_ptr->src_row_bytes - bmp_ptr->col_num) { + _bmp_error(bmp_ptr, "The Bmp File Is Corrupt"); + return 0; + } + FXSYS_memset(bmp_ptr->out_row_buffer + bmp_ptr->col_num, + *second_byte_ptr, *first_byte_ptr); + bmp_ptr->col_num += (int32_t)(*first_byte_ptr); + } + } + } + _bmp_error(bmp_ptr, "Any Uncontrol Error"); + return 0; +} +int32_t _bmp_decode_rle4(bmp_decompress_struct_p bmp_ptr) { + uint8_t* first_byte_ptr = NULL; + uint8_t* second_byte_ptr = NULL; + bmp_ptr->col_num = 0; + while (TRUE) { + FX_DWORD skip_size_org = bmp_ptr->skip_size; + if (_bmp_read_data(bmp_ptr, &first_byte_ptr, 1) == NULL) { + return 2; + } + switch (*first_byte_ptr) { + case RLE_MARKER: { + if (_bmp_read_data(bmp_ptr, &first_byte_ptr, 1) == NULL) { + bmp_ptr->skip_size = skip_size_org; + return 2; + } + switch (*first_byte_ptr) { + case RLE_EOL: { + if (bmp_ptr->row_num >= bmp_ptr->height) { + _bmp_save_decoding_status(bmp_ptr, BMP_D_STATUS_TAIL); + _bmp_error(bmp_ptr, "The Bmp File Is Corrupt"); + return 0; + } + bmp_ptr->_bmp_get_row_fn( + bmp_ptr, bmp_ptr->imgTB_flag + ? bmp_ptr->row_num++ + : (bmp_ptr->height - 1 - bmp_ptr->row_num++), + bmp_ptr->out_row_buffer); + bmp_ptr->col_num = 0; + FXSYS_memset(bmp_ptr->out_row_buffer, 0, bmp_ptr->out_row_bytes); + _bmp_save_decoding_status(bmp_ptr, BMP_D_STATUS_DATA); + continue; + } + case RLE_EOI: { + if (bmp_ptr->row_num < bmp_ptr->height) { + bmp_ptr->_bmp_get_row_fn( + bmp_ptr, bmp_ptr->imgTB_flag + ? bmp_ptr->row_num++ + : (bmp_ptr->height - 1 - bmp_ptr->row_num++), + bmp_ptr->out_row_buffer); + } + _bmp_save_decoding_status(bmp_ptr, BMP_D_STATUS_TAIL); + return 1; + } + case RLE_DELTA: { + uint8_t* delta_ptr; + if (_bmp_read_data(bmp_ptr, &delta_ptr, 2) == NULL) { + bmp_ptr->skip_size = skip_size_org; + return 2; + } + bmp_ptr->col_num += (int32_t)delta_ptr[0]; + int32_t bmp_row_num_next = bmp_ptr->row_num + (int32_t)delta_ptr[1]; + if (bmp_ptr->col_num >= bmp_ptr->out_row_bytes || + bmp_row_num_next >= bmp_ptr->height) { + _bmp_error(bmp_ptr, "The Bmp File Is Corrupt Or Not Supported"); + return 0; + } + while (bmp_ptr->row_num < bmp_row_num_next) { + FXSYS_memset(bmp_ptr->out_row_buffer, 0, bmp_ptr->out_row_bytes); + bmp_ptr->_bmp_get_row_fn( + bmp_ptr, bmp_ptr->imgTB_flag + ? bmp_ptr->row_num++ + : (bmp_ptr->height - 1 - bmp_ptr->row_num++), + bmp_ptr->out_row_buffer); + } + } break; + default: { + uint8_t size = (uint8_t)(((FX_WORD)(*first_byte_ptr) + 1) >> 1); + if ((int32_t)*first_byte_ptr >= + bmp_ptr->out_row_bytes - bmp_ptr->col_num) { + if (size + (bmp_ptr->col_num >> 1) > bmp_ptr->src_row_bytes) { + _bmp_error(bmp_ptr, "The Bmp File Is Corrupt"); + return 0; + } + *first_byte_ptr = bmp_ptr->out_row_bytes - bmp_ptr->col_num - 1; + } + if (_bmp_read_data(bmp_ptr, &second_byte_ptr, + size & 1 ? size + 1 : size) == NULL) { + bmp_ptr->skip_size = skip_size_org; + return 2; + } + for (uint8_t i = 0; i < *first_byte_ptr; i++) { + if (i & 0x01) { + *(bmp_ptr->out_row_buffer + bmp_ptr->col_num++) = + (*second_byte_ptr++ & 0x0F); + } else { + *(bmp_ptr->out_row_buffer + bmp_ptr->col_num++) = + ((*second_byte_ptr & 0xF0) >> 4); + } + } + } + } + } break; + default: { + if (_bmp_read_data(bmp_ptr, &second_byte_ptr, 1) == NULL) { + bmp_ptr->skip_size = skip_size_org; + return 2; + } + if ((int32_t)*first_byte_ptr > + bmp_ptr->out_row_bytes - bmp_ptr->col_num) { + uint8_t size = (uint8_t)(((FX_WORD)(*first_byte_ptr) + 1) >> 1); + if (size + (bmp_ptr->col_num >> 1) > bmp_ptr->src_row_bytes) { + _bmp_error(bmp_ptr, "The Bmp File Is Corrupt"); + return 0; + } + *first_byte_ptr = bmp_ptr->out_row_bytes - bmp_ptr->col_num - 1; + } + for (uint8_t i = 0; i < *first_byte_ptr; i++) { + if (i & 0x01) { + *(bmp_ptr->out_row_buffer + bmp_ptr->col_num++) = + (*second_byte_ptr & 0x0F); + } else { + *(bmp_ptr->out_row_buffer + bmp_ptr->col_num++) = + ((*second_byte_ptr & 0xF0) >> 4); + } + } + } + } + } + _bmp_error(bmp_ptr, "Any Uncontrol Error"); + return 0; +} +uint8_t* _bmp_read_data(bmp_decompress_struct_p bmp_ptr, + uint8_t** des_buf_pp, + FX_DWORD data_size) { + if (bmp_ptr == NULL || bmp_ptr->avail_in < bmp_ptr->skip_size + data_size) { + return NULL; + } + *des_buf_pp = bmp_ptr->next_in + bmp_ptr->skip_size; + bmp_ptr->skip_size += data_size; + return *des_buf_pp; +} +void _bmp_save_decoding_status(bmp_decompress_struct_p bmp_ptr, + int32_t status) { + bmp_ptr->decode_status = status; + bmp_ptr->next_in += bmp_ptr->skip_size; + bmp_ptr->avail_in -= bmp_ptr->skip_size; + bmp_ptr->skip_size = 0; +} +void _bmp_input_buffer(bmp_decompress_struct_p bmp_ptr, + uint8_t* src_buf, + FX_DWORD src_size) { + bmp_ptr->next_in = src_buf; + bmp_ptr->avail_in = src_size; + bmp_ptr->skip_size = 0; +} +FX_DWORD _bmp_get_avail_input(bmp_decompress_struct_p bmp_ptr, + uint8_t** avial_buf_ptr) { + if (avial_buf_ptr != NULL) { + *avial_buf_ptr = NULL; + if (bmp_ptr->avail_in > 0) { + *avial_buf_ptr = bmp_ptr->next_in; + } + } + return bmp_ptr->avail_in; +} +bmp_compress_struct_p _bmp_create_compress() { + bmp_compress_struct_p bmp_ptr; + bmp_ptr = FX_Alloc(bmp_compress_struct, 1); + if (bmp_ptr) { + FXSYS_memset(bmp_ptr, 0, sizeof(bmp_compress_struct)); + } + return bmp_ptr; +} +void _bmp_destroy_compress(bmp_compress_struct_p bmp_ptr) { + if (bmp_ptr) { + if (bmp_ptr->src_free && bmp_ptr->src_buf) { + FX_Free(bmp_ptr->src_buf); + } + FX_Free(bmp_ptr); + } +} +static void WriteFileHeader(BmpFileHeaderPtr head_ptr, uint8_t* dst_buf) { + FX_DWORD offset; + offset = 0; + _SetWord_LSBFirst(&dst_buf[offset], head_ptr->bfType); + offset += 2; + _SetDWord_LSBFirst(&dst_buf[offset], head_ptr->bfSize); + offset += 4; + _SetWord_LSBFirst(&dst_buf[offset], head_ptr->bfReserved1); + offset += 2; + _SetWord_LSBFirst(&dst_buf[offset], head_ptr->bfReserved2); + offset += 2; + _SetDWord_LSBFirst(&dst_buf[offset], head_ptr->bfOffBits); + offset += 4; +} +static void WriteInfoHeader(BmpInfoHeaderPtr info_head_ptr, uint8_t* dst_buf) { + FX_DWORD offset; + offset = sizeof(BmpFileHeader); + _SetDWord_LSBFirst(&dst_buf[offset], info_head_ptr->biSize); + offset += 4; + _SetDWord_LSBFirst(&dst_buf[offset], (FX_DWORD)info_head_ptr->biWidth); + offset += 4; + _SetDWord_LSBFirst(&dst_buf[offset], (FX_DWORD)info_head_ptr->biHeight); + offset += 4; + _SetWord_LSBFirst(&dst_buf[offset], info_head_ptr->biPlanes); + offset += 2; + _SetWord_LSBFirst(&dst_buf[offset], info_head_ptr->biBitCount); + offset += 2; + _SetDWord_LSBFirst(&dst_buf[offset], info_head_ptr->biCompression); + offset += 4; + _SetDWord_LSBFirst(&dst_buf[offset], info_head_ptr->biSizeImage); + offset += 4; + _SetDWord_LSBFirst(&dst_buf[offset], + (FX_DWORD)info_head_ptr->biXPelsPerMeter); + offset += 4; + _SetDWord_LSBFirst(&dst_buf[offset], + (FX_DWORD)info_head_ptr->biYPelsPerMeter); + offset += 4; + _SetDWord_LSBFirst(&dst_buf[offset], info_head_ptr->biClrUsed); + offset += 4; + _SetDWord_LSBFirst(&dst_buf[offset], info_head_ptr->biClrImportant); + offset += 4; +} +#ifdef BMP_SUPPORT_BITFIELD +static void _bmp_encode_bitfields(bmp_compress_struct_p bmp_ptr, + uint8_t*& dst_buf, + FX_DWORD& dst_size) { + if (bmp_ptr->info_header.biBitCount != 16 && + bmp_ptr->info_header.biBitCount != 32) { + return; + } + FX_DWORD size, dst_pos, i; + size = bmp_ptr->src_pitch * bmp_ptr->src_row * + bmp_ptr->info_header.biBitCount / 16; + dst_pos = bmp_ptr->file_header.bfOffBits; + dst_size += size; + dst_buf = FX_Realloc(uint8_t, dst_buf, dst_size); + if (dst_buf == NULL) { + return; + } + FXSYS_memset(&dst_buf[dst_pos], 0, size); + FX_DWORD mask_red; + FX_DWORD mask_green; + FX_DWORD mask_blue; + mask_red = 0x7C00; + mask_green = 0x03E0; + mask_blue = 0x001F; + if (bmp_ptr->info_header.biCompression == BMP_BITFIELDS) { + if (bmp_ptr->bit_type == BMP_BIT_565) { + mask_red = 0xF800; + mask_green = 0x07E0; + mask_blue = 0x001F; + } + if (bmp_ptr->info_header.biBitCount == 32) { + mask_red = 0xFF0000; + mask_green = 0x00FF00; + mask_blue = 0x0000FF; + } + _SetDWord_LSBFirst(&dst_buf[dst_pos], mask_red); + dst_pos += 4; + _SetDWord_LSBFirst(&dst_buf[dst_pos], mask_green); + dst_pos += 4; + _SetDWord_LSBFirst(&dst_buf[dst_pos], mask_blue); + dst_pos += 4; + bmp_ptr->file_header.bfOffBits = dst_pos; + } + uint8_t blue_bits = 0; + uint8_t green_bits = 0; + uint8_t red_bits = 0; + for (i = 0; i < bmp_ptr->info_header.biBitCount; i++) { + if ((mask_blue >> i) & 0x01) { + blue_bits++; + } + if ((mask_green >> i) & 0x01) { + green_bits++; + } + if ((mask_red >> i) & 0x01) { + red_bits++; + } + } + green_bits += blue_bits; + red_bits += green_bits; + blue_bits = 8 - blue_bits; + green_bits -= 8; + red_bits -= 8; + i = 0; + for (int32_t row_num = bmp_ptr->src_row - 1; row_num > -1; row_num--, i = 0) { + while (i < bmp_ptr->src_width * bmp_ptr->src_bpp / 8) { + uint8_t b = bmp_ptr->src_buf[row_num * bmp_ptr->src_pitch + i++]; + uint8_t g = bmp_ptr->src_buf[row_num * bmp_ptr->src_pitch + i++]; + uint8_t r = bmp_ptr->src_buf[row_num * bmp_ptr->src_pitch + i++]; + if (bmp_ptr->src_bpp == 32) { + i++; + } + FX_DWORD pix_val = 0; + pix_val |= (b >> blue_bits) & mask_blue; + pix_val |= (g << green_bits) & mask_green; + pix_val |= (r << red_bits) & mask_red; + if (bmp_ptr->info_header.biBitCount == 16) { + _SetWord_LSBFirst(&dst_buf[dst_pos], (FX_WORD)pix_val); + dst_pos += 2; + } else { + _SetDWord_LSBFirst(&dst_buf[dst_pos], pix_val); + dst_pos += 4; + } + } + } + dst_size = dst_pos; +} +#endif +static void _bmp_encode_rgb(bmp_compress_struct_p bmp_ptr, + uint8_t*& dst_buf, + FX_DWORD& dst_size) { + if (bmp_ptr->info_header.biBitCount == 16) { +#ifdef BMP_SUPPORT_BITFIELD + _bmp_encode_bitfields(bmp_ptr, dst_buf, dst_size); +#endif + return; + } + FX_DWORD size, dst_pos; + FX_DWORD dst_pitch = + (bmp_ptr->src_width * bmp_ptr->info_header.biBitCount + 31) / 32 * 4; + size = dst_pitch * bmp_ptr->src_row; + dst_pos = bmp_ptr->file_header.bfOffBits; + dst_size += size; + dst_buf = FX_Realloc(uint8_t, dst_buf, dst_size); + if (dst_buf == NULL) { + return; + } + FXSYS_memset(&dst_buf[dst_pos], 0, size); + for (int32_t row_num = bmp_ptr->src_row - 1; row_num > -1; row_num--) { + FXSYS_memcpy(&dst_buf[dst_pos], + &bmp_ptr->src_buf[row_num * bmp_ptr->src_pitch], + bmp_ptr->src_pitch); + dst_pos += dst_pitch; + } + dst_size = dst_pos; +} +static uint8_t _bmp_rle8_search(const uint8_t* buf, int32_t len) { + uint8_t num; + num = 1; + while (num < len) { + if (buf[num - 1] != buf[num] || num == 0xFF) { + break; + } + num++; + } + return num; +} +static void _bmp_encode_rle8(bmp_compress_struct_p bmp_ptr, + uint8_t*& dst_buf, + FX_DWORD& dst_size) { + FX_DWORD size, dst_pos, index; + uint8_t rle[2] = {0}; + size = bmp_ptr->src_pitch * bmp_ptr->src_row * 2; + dst_pos = bmp_ptr->file_header.bfOffBits; + dst_size += size; + dst_buf = FX_Realloc(uint8_t, dst_buf, dst_size); + if (dst_buf == NULL) { + return; + } + FXSYS_memset(&dst_buf[dst_pos], 0, size); + for (int32_t row_num = bmp_ptr->src_row - 1, i = 0; row_num > -1;) { + index = row_num * bmp_ptr->src_pitch; + rle[0] = _bmp_rle8_search(&bmp_ptr->src_buf[index + i], size - index - i); + rle[1] = bmp_ptr->src_buf[index + i]; + if (i + rle[0] >= (int32_t)bmp_ptr->src_pitch) { + rle[0] = uint8_t(bmp_ptr->src_pitch - i); + if (rle[0]) { + dst_buf[dst_pos++] = rle[0]; + dst_buf[dst_pos++] = rle[1]; + } + dst_buf[dst_pos++] = RLE_MARKER; + dst_buf[dst_pos++] = RLE_EOL; + i = 0; + row_num--; + } else { + i += rle[0]; + dst_buf[dst_pos++] = rle[0]; + dst_buf[dst_pos++] = rle[1]; + } + } + dst_buf[dst_pos++] = RLE_MARKER; + dst_buf[dst_pos++] = RLE_EOI; + dst_size = dst_pos; +} +static uint8_t _bmp_rle4_search(const uint8_t* buf, int32_t len) { + uint8_t num; + num = 2; + while (num < len) { + if (buf[num - 2] != buf[num] || num == 0xFF) { + break; + } + num++; + } + return num; +} +static void _bmp_encode_rle4(bmp_compress_struct_p bmp_ptr, + uint8_t*& dst_buf, + FX_DWORD& dst_size) { + FX_DWORD size, dst_pos, index; + uint8_t rle[2] = {0}; + size = bmp_ptr->src_pitch * bmp_ptr->src_row; + dst_pos = bmp_ptr->file_header.bfOffBits; + dst_size += size; + dst_buf = FX_Realloc(uint8_t, dst_buf, dst_size); + if (dst_buf == NULL) { + return; + } + FXSYS_memset(&dst_buf[dst_pos], 0, size); + for (int32_t row_num = bmp_ptr->src_row - 1, i = 0; row_num > -1; + rle[1] = 0) { + index = row_num * bmp_ptr->src_pitch; + rle[0] = _bmp_rle4_search(&bmp_ptr->src_buf[index + i], size - index - i); + rle[1] |= (bmp_ptr->src_buf[index + i] & 0x0f) << 4; + rle[1] |= bmp_ptr->src_buf[index + i + 1] & 0x0f; + if (i + rle[0] >= (int32_t)bmp_ptr->src_pitch) { + rle[0] = uint8_t(bmp_ptr->src_pitch - i); + if (rle[0]) { + dst_buf[dst_pos++] = rle[0]; + dst_buf[dst_pos++] = rle[1]; + } + dst_buf[dst_pos++] = RLE_MARKER; + dst_buf[dst_pos++] = RLE_EOL; + i = 0; + row_num--; + } else { + i += rle[0]; + dst_buf[dst_pos++] = rle[0]; + dst_buf[dst_pos++] = rle[1]; + } + } + dst_buf[dst_pos++] = RLE_MARKER; + dst_buf[dst_pos++] = RLE_EOI; + dst_size = dst_pos; +} +FX_BOOL _bmp_encode_image(bmp_compress_struct_p bmp_ptr, + uint8_t*& dst_buf, + FX_DWORD& dst_size) { + FX_DWORD head_size = sizeof(BmpFileHeader) + sizeof(BmpInfoHeader); + FX_DWORD pal_size = sizeof(FX_DWORD) * bmp_ptr->pal_num; + if (bmp_ptr->info_header.biClrUsed > 0 && + bmp_ptr->info_header.biClrUsed < bmp_ptr->pal_num) { + pal_size = sizeof(FX_DWORD) * bmp_ptr->info_header.biClrUsed; + } + dst_size = head_size + sizeof(FX_DWORD) * bmp_ptr->pal_num; + dst_buf = FX_TryAlloc(uint8_t, dst_size); + if (dst_buf == NULL) { + return FALSE; + } + FXSYS_memset(dst_buf, 0, dst_size); + bmp_ptr->file_header.bfOffBits = head_size; + if (bmp_ptr->pal_ptr && pal_size) { + FXSYS_memcpy(&dst_buf[head_size], bmp_ptr->pal_ptr, pal_size); + bmp_ptr->file_header.bfOffBits += pal_size; + } + WriteInfoHeader(&bmp_ptr->info_header, dst_buf); + switch (bmp_ptr->info_header.biCompression) { + case BMP_RGB: + _bmp_encode_rgb(bmp_ptr, dst_buf, dst_size); + break; + case BMP_BITFIELDS: +#ifdef BMP_SUPPORT_BITFIELD + _bmp_encode_bitfields(bmp_ptr, dst_buf, dst_size); +#endif + break; + case BMP_RLE8: + _bmp_encode_rle8(bmp_ptr, dst_buf, dst_size); + break; + case BMP_RLE4: + _bmp_encode_rle4(bmp_ptr, dst_buf, dst_size); + break; + default:; + } + bmp_ptr->file_header.bfSize = dst_size; + WriteFileHeader(&bmp_ptr->file_header, dst_buf); + return TRUE; +} diff --git a/core/src/fxcodec/lbmp/fx_bmp.h b/core/src/fxcodec/lbmp/fx_bmp.h index d1232f1f11..06bfe1e99d 100644 --- a/core/src/fxcodec/lbmp/fx_bmp.h +++ b/core/src/fxcodec/lbmp/fx_bmp.h @@ -1,155 +1,155 @@ -// Copyright 2014 PDFium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
-
-#include <setjmp.h>
-
-#include "core/include/fxcrt/fx_basic.h"
-
-#define BMP_SUPPORT_BITFIELD
-#define BMP_WIDTHBYTES(width, bitCount) ((width * bitCount) + 31) / 32 * 4
-#define BMP_PAL_ENCODE(a, r, g, b) \
- (((FX_DWORD)(a) << 24) | ((r) << 16) | ((g) << 8) | (b))
-#define BMP_D_STATUS_HEADER 0x01
-#define BMP_D_STATUS_PAL 0x02
-#define BMP_D_STATUS_DATA_PRE 0x03
-#define BMP_D_STATUS_DATA 0x04
-#define BMP_D_STATUS_TAIL 0x00
-#define BMP_SIGNATURE 0x4D42
-#define BMP_PAL_NEW 0
-#define BMP_PAL_OLD 1
-#define RLE_MARKER 0
-#define RLE_EOL 0
-#define RLE_EOI 1
-#define RLE_DELTA 2
-#define BMP_RGB 0L
-#define BMP_RLE8 1L
-#define BMP_RLE4 2L
-#define BMP_BITFIELDS 3L
-#define BMP_BIT_555 0
-#define BMP_BIT_565 1
-#define BMP_MAX_ERROR_SIZE 256
-#pragma pack(1)
-typedef struct tagBmpFileHeader {
- FX_WORD bfType;
- FX_DWORD bfSize;
- FX_WORD bfReserved1;
- FX_WORD bfReserved2;
- FX_DWORD bfOffBits;
-} BmpFileHeader, *BmpFileHeaderPtr;
-typedef struct tagBmpCoreHeader {
- FX_DWORD bcSize;
- FX_WORD bcWidth;
- FX_WORD bcHeight;
- FX_WORD bcPlanes;
- FX_WORD bcBitCount;
-} BmpCoreHeader, *BmpCoreHeaderPtr;
-typedef struct tagBmpInfoHeader {
- FX_DWORD biSize;
- int32_t biWidth;
- int32_t biHeight;
- FX_WORD biPlanes;
- FX_WORD biBitCount;
- FX_DWORD biCompression;
- FX_DWORD biSizeImage;
- int32_t biXPelsPerMeter;
- int32_t biYPelsPerMeter;
- FX_DWORD biClrUsed;
- FX_DWORD biClrImportant;
-} BmpInfoHeader, *BmpInfoHeaderPtr;
-#pragma pack()
-typedef struct tag_bmp_decompress_struct bmp_decompress_struct;
-typedef bmp_decompress_struct* bmp_decompress_struct_p;
-typedef bmp_decompress_struct_p* bmp_decompress_struct_pp;
-struct tag_bmp_decompress_struct {
- jmp_buf jmpbuf;
- FX_CHAR* err_ptr;
- void (*_bmp_error_fn)(bmp_decompress_struct_p gif_ptr,
- const FX_CHAR* err_msg);
-
- void* context_ptr;
-
- BmpFileHeaderPtr bmp_header_ptr;
- BmpInfoHeaderPtr bmp_infoheader_ptr;
- int32_t width;
- int32_t height;
- FX_DWORD compress_flag;
- int32_t components;
- int32_t src_row_bytes;
- int32_t out_row_bytes;
- uint8_t* out_row_buffer;
- FX_WORD bitCounts;
- FX_DWORD color_used;
- FX_BOOL imgTB_flag;
- int32_t pal_num;
- int32_t pal_type;
- FX_DWORD* pal_ptr;
- FX_DWORD data_size;
- FX_DWORD img_data_offset;
- FX_DWORD img_ifh_size;
- int32_t row_num;
- int32_t col_num;
- int32_t dpi_x;
- int32_t dpi_y;
-#ifdef BMP_SUPPORT_BITFIELD
- FX_DWORD mask_red;
- FX_DWORD mask_green;
- FX_DWORD mask_blue;
-#endif
-
- FX_BOOL (*_bmp_get_data_position_fn)(bmp_decompress_struct_p bmp_ptr, FX_DWORD cur_pos);
- void (*_bmp_get_row_fn)(bmp_decompress_struct_p bmp_ptr,
- int32_t row_num,
- uint8_t* row_buf);
- uint8_t* next_in;
- FX_DWORD avail_in;
- FX_DWORD skip_size;
- int32_t decode_status;
-};
-void _bmp_error(bmp_decompress_struct_p bmp_ptr, const FX_CHAR* err_msg);
-bmp_decompress_struct_p _bmp_create_decompress();
-void _bmp_destroy_decompress(bmp_decompress_struct_pp bmp_ptr_ptr);
-int32_t _bmp_read_header(bmp_decompress_struct_p bmp_ptr);
-int32_t _bmp_decode_image(bmp_decompress_struct_p bmp_ptr);
-int32_t _bmp_decode_rgb(bmp_decompress_struct_p bmp_ptr);
-int32_t _bmp_decode_rle8(bmp_decompress_struct_p bmp_ptr);
-int32_t _bmp_decode_rle4(bmp_decompress_struct_p bmp_ptr);
-uint8_t* _bmp_read_data(bmp_decompress_struct_p bmp_ptr,
- uint8_t** des_buf_pp,
- FX_DWORD data_size);
-void _bmp_save_decoding_status(bmp_decompress_struct_p bmp_ptr, int32_t status);
-void _bmp_input_buffer(bmp_decompress_struct_p bmp_ptr,
- uint8_t* src_buf,
- FX_DWORD src_size);
-FX_DWORD _bmp_get_avail_input(bmp_decompress_struct_p bmp_ptr,
- uint8_t** avial_buf_ptr);
-#define BMP_PTR_NOT_NULL(ptr, bmp_ptr) \
- if (ptr == NULL) { \
- _bmp_error(bmp_ptr, "Out Of Memory"); \
- return 0; \
- }
-typedef struct tag_bmp_compress_struct bmp_compress_struct;
-typedef bmp_compress_struct* bmp_compress_struct_p;
-typedef bmp_compress_struct_p* bmp_compress_struct_pp;
-struct tag_bmp_compress_struct {
- BmpFileHeader file_header;
- BmpInfoHeader info_header;
- uint8_t* src_buf;
- FX_DWORD src_pitch;
- FX_DWORD src_row;
- uint8_t src_bpp;
- FX_DWORD src_width;
- FX_BOOL src_free;
- FX_DWORD* pal_ptr;
- FX_WORD pal_num;
-#ifdef BMP_SUPPORT_BITFIELD
- uint8_t bit_type;
-#endif
-};
-bmp_compress_struct_p _bmp_create_compress();
-void _bmp_destroy_compress(bmp_compress_struct_p bmp_ptr);
-FX_BOOL _bmp_encode_image(bmp_compress_struct_p bmp_ptr,
- uint8_t*& dst_buf,
- FX_DWORD& dst_size);
+// Copyright 2014 PDFium Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. + +// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com + +#include <setjmp.h> + +#include "core/include/fxcrt/fx_basic.h" + +#define BMP_SUPPORT_BITFIELD +#define BMP_WIDTHBYTES(width, bitCount) ((width * bitCount) + 31) / 32 * 4 +#define BMP_PAL_ENCODE(a, r, g, b) \ + (((FX_DWORD)(a) << 24) | ((r) << 16) | ((g) << 8) | (b)) +#define BMP_D_STATUS_HEADER 0x01 +#define BMP_D_STATUS_PAL 0x02 +#define BMP_D_STATUS_DATA_PRE 0x03 +#define BMP_D_STATUS_DATA 0x04 +#define BMP_D_STATUS_TAIL 0x00 +#define BMP_SIGNATURE 0x4D42 +#define BMP_PAL_NEW 0 +#define BMP_PAL_OLD 1 +#define RLE_MARKER 0 +#define RLE_EOL 0 +#define RLE_EOI 1 +#define RLE_DELTA 2 +#define BMP_RGB 0L +#define BMP_RLE8 1L +#define BMP_RLE4 2L +#define BMP_BITFIELDS 3L +#define BMP_BIT_555 0 +#define BMP_BIT_565 1 +#define BMP_MAX_ERROR_SIZE 256 +#pragma pack(1) +typedef struct tagBmpFileHeader { + FX_WORD bfType; + FX_DWORD bfSize; + FX_WORD bfReserved1; + FX_WORD bfReserved2; + FX_DWORD bfOffBits; +} BmpFileHeader, *BmpFileHeaderPtr; +typedef struct tagBmpCoreHeader { + FX_DWORD bcSize; + FX_WORD bcWidth; + FX_WORD bcHeight; + FX_WORD bcPlanes; + FX_WORD bcBitCount; +} BmpCoreHeader, *BmpCoreHeaderPtr; +typedef struct tagBmpInfoHeader { + FX_DWORD biSize; + int32_t biWidth; + int32_t biHeight; + FX_WORD biPlanes; + FX_WORD biBitCount; + FX_DWORD biCompression; + FX_DWORD biSizeImage; + int32_t biXPelsPerMeter; + int32_t biYPelsPerMeter; + FX_DWORD biClrUsed; + FX_DWORD biClrImportant; +} BmpInfoHeader, *BmpInfoHeaderPtr; +#pragma pack() +typedef struct tag_bmp_decompress_struct bmp_decompress_struct; +typedef bmp_decompress_struct* bmp_decompress_struct_p; +typedef bmp_decompress_struct_p* bmp_decompress_struct_pp; +struct tag_bmp_decompress_struct { + jmp_buf jmpbuf; + FX_CHAR* err_ptr; + void (*_bmp_error_fn)(bmp_decompress_struct_p gif_ptr, + const FX_CHAR* err_msg); + + void* context_ptr; + + BmpFileHeaderPtr bmp_header_ptr; + BmpInfoHeaderPtr bmp_infoheader_ptr; + int32_t width; + int32_t height; + FX_DWORD compress_flag; + int32_t components; + int32_t src_row_bytes; + int32_t out_row_bytes; + uint8_t* out_row_buffer; + FX_WORD bitCounts; + FX_DWORD color_used; + FX_BOOL imgTB_flag; + int32_t pal_num; + int32_t pal_type; + FX_DWORD* pal_ptr; + FX_DWORD data_size; + FX_DWORD img_data_offset; + FX_DWORD img_ifh_size; + int32_t row_num; + int32_t col_num; + int32_t dpi_x; + int32_t dpi_y; +#ifdef BMP_SUPPORT_BITFIELD + FX_DWORD mask_red; + FX_DWORD mask_green; + FX_DWORD mask_blue; +#endif + + FX_BOOL (*_bmp_get_data_position_fn)(bmp_decompress_struct_p bmp_ptr, FX_DWORD cur_pos); + void (*_bmp_get_row_fn)(bmp_decompress_struct_p bmp_ptr, + int32_t row_num, + uint8_t* row_buf); + uint8_t* next_in; + FX_DWORD avail_in; + FX_DWORD skip_size; + int32_t decode_status; +}; +void _bmp_error(bmp_decompress_struct_p bmp_ptr, const FX_CHAR* err_msg); +bmp_decompress_struct_p _bmp_create_decompress(); +void _bmp_destroy_decompress(bmp_decompress_struct_pp bmp_ptr_ptr); +int32_t _bmp_read_header(bmp_decompress_struct_p bmp_ptr); +int32_t _bmp_decode_image(bmp_decompress_struct_p bmp_ptr); +int32_t _bmp_decode_rgb(bmp_decompress_struct_p bmp_ptr); +int32_t _bmp_decode_rle8(bmp_decompress_struct_p bmp_ptr); +int32_t _bmp_decode_rle4(bmp_decompress_struct_p bmp_ptr); +uint8_t* _bmp_read_data(bmp_decompress_struct_p bmp_ptr, + uint8_t** des_buf_pp, + FX_DWORD data_size); +void _bmp_save_decoding_status(bmp_decompress_struct_p bmp_ptr, int32_t status); +void _bmp_input_buffer(bmp_decompress_struct_p bmp_ptr, + uint8_t* src_buf, + FX_DWORD src_size); +FX_DWORD _bmp_get_avail_input(bmp_decompress_struct_p bmp_ptr, + uint8_t** avial_buf_ptr); +#define BMP_PTR_NOT_NULL(ptr, bmp_ptr) \ + if (ptr == NULL) { \ + _bmp_error(bmp_ptr, "Out Of Memory"); \ + return 0; \ + } +typedef struct tag_bmp_compress_struct bmp_compress_struct; +typedef bmp_compress_struct* bmp_compress_struct_p; +typedef bmp_compress_struct_p* bmp_compress_struct_pp; +struct tag_bmp_compress_struct { + BmpFileHeader file_header; + BmpInfoHeader info_header; + uint8_t* src_buf; + FX_DWORD src_pitch; + FX_DWORD src_row; + uint8_t src_bpp; + FX_DWORD src_width; + FX_BOOL src_free; + FX_DWORD* pal_ptr; + FX_WORD pal_num; +#ifdef BMP_SUPPORT_BITFIELD + uint8_t bit_type; +#endif +}; +bmp_compress_struct_p _bmp_create_compress(); +void _bmp_destroy_compress(bmp_compress_struct_p bmp_ptr); +FX_BOOL _bmp_encode_image(bmp_compress_struct_p bmp_ptr, + uint8_t*& dst_buf, + FX_DWORD& dst_size); diff --git a/core/src/fxcodec/lgif/fx_gif.cpp b/core/src/fxcodec/lgif/fx_gif.cpp index b07ebb3bc9..c00b7a74b2 100644 --- a/core/src/fxcodec/lgif/fx_gif.cpp +++ b/core/src/fxcodec/lgif/fx_gif.cpp @@ -1,1426 +1,1426 @@ -// Copyright 2014 PDFium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
-
-#include "fx_gif.h"
-void CGifLZWDecoder::Input(uint8_t* src_buf, FX_DWORD src_size) {
- next_in = src_buf;
- avail_in = src_size;
-}
-FX_DWORD CGifLZWDecoder::GetAvailInput() {
- return avail_in;
-}
-void CGifLZWDecoder::InitTable(uint8_t code_len) {
- code_size = code_len;
- code_clear = 1 << code_size;
- code_end = code_clear + 1;
- bits_left = 0;
- code_store = 0;
- next_in = NULL;
- avail_in = 0;
- stack_size = 0;
- code_first = 0;
- ClearTable();
-}
-void CGifLZWDecoder::ClearTable() {
- code_size_cur = code_size + 1;
- code_next = code_end + 1;
- code_old = (FX_WORD)-1;
- FXSYS_memset(code_table, 0, sizeof(tag_Table) * GIF_MAX_LZW_CODE);
- FXSYS_memset(stack, 0, GIF_MAX_LZW_CODE);
- for (FX_WORD i = 0; i < code_clear; i++) {
- code_table[i].suffix = (uint8_t)i;
- }
-}
-void CGifLZWDecoder::DecodeString(FX_WORD code) {
- stack_size = 0;
- while (TRUE) {
- ASSERT(code <= code_next);
- if (code < code_clear || code > code_next) {
- break;
- }
- stack[GIF_MAX_LZW_CODE - 1 - stack_size++] = code_table[code].suffix;
- code = code_table[code].prefix;
- }
- stack[GIF_MAX_LZW_CODE - 1 - stack_size++] = (uint8_t)code;
- code_first = (uint8_t)code;
-}
-void CGifLZWDecoder::AddCode(FX_WORD prefix_code, uint8_t append_char) {
- if (code_next == GIF_MAX_LZW_CODE) {
- return;
- }
- code_table[code_next].prefix = prefix_code;
- code_table[code_next].suffix = append_char;
- if (++code_next < GIF_MAX_LZW_CODE) {
- if (code_next >> code_size_cur) {
- code_size_cur++;
- }
- }
-}
-int32_t CGifLZWDecoder::Decode(uint8_t* des_buf, FX_DWORD& des_size) {
- if (des_size == 0) {
- return 3;
- }
- FX_DWORD i = 0;
- if (stack_size != 0) {
- if (des_size < stack_size) {
- FXSYS_memcpy(des_buf, &stack[GIF_MAX_LZW_CODE - stack_size], des_size);
- stack_size -= (FX_WORD)des_size;
- return 3;
- }
- FXSYS_memcpy(des_buf, &stack[GIF_MAX_LZW_CODE - stack_size], stack_size);
- des_buf += stack_size;
- i += stack_size;
- stack_size = 0;
- }
- FX_WORD code = 0;
- while (i <= des_size && (avail_in > 0 || bits_left >= code_size_cur)) {
- if (code_size_cur > 12) {
- if (err_msg_ptr) {
- FXSYS_strncpy(err_msg_ptr, "Code Length Out Of Range",
- GIF_MAX_ERROR_SIZE - 1);
- }
- return 0;
- }
- if (avail_in > 0) {
- code_store |= (*next_in++) << bits_left;
- avail_in--;
- bits_left += 8;
- }
- while (bits_left >= code_size_cur) {
- code = (FX_WORD)code_store & ((1 << code_size_cur) - 1);
- code_store >>= code_size_cur;
- bits_left -= code_size_cur;
- if (code == code_clear) {
- ClearTable();
- continue;
- } else if (code == code_end) {
- des_size = i;
- return 1;
- } else {
- if (code_old != (FX_WORD)-1) {
- if (code_next < GIF_MAX_LZW_CODE) {
- if (code == code_next) {
- AddCode(code_old, code_first);
- DecodeString(code);
- } else if (code > code_next) {
- if (err_msg_ptr) {
- FXSYS_strncpy(err_msg_ptr, "Decode Error, Out Of Range",
- GIF_MAX_ERROR_SIZE - 1);
- }
- return 0;
- } else {
- DecodeString(code);
- uint8_t append_char = stack[GIF_MAX_LZW_CODE - stack_size];
- AddCode(code_old, append_char);
- }
- }
- } else {
- DecodeString(code);
- }
- code_old = code;
- if (i + stack_size > des_size) {
- FXSYS_memcpy(des_buf, &stack[GIF_MAX_LZW_CODE - stack_size],
- des_size - i);
- stack_size -= (FX_WORD)(des_size - i);
- return 3;
- }
- FXSYS_memcpy(des_buf, &stack[GIF_MAX_LZW_CODE - stack_size],
- stack_size);
- des_buf += stack_size;
- i += stack_size;
- stack_size = 0;
- }
- }
- }
- if (avail_in == 0) {
- des_size = i;
- return 2;
- }
- return 0;
-}
-static FX_BOOL _gif_grow_buf(uint8_t*& dst_buf,
- FX_DWORD& dst_len,
- FX_DWORD size) {
- if (dst_len < size) {
- FX_DWORD len_org = dst_len;
- while (dst_buf && dst_len < size) {
- dst_len <<= 1;
- dst_buf = FX_Realloc(uint8_t, dst_buf, dst_len);
- }
- if (dst_buf == NULL) {
- dst_len = size;
- dst_buf = FX_Realloc(uint8_t, dst_buf, dst_len);
- if (dst_buf == NULL) {
- return FALSE;
- }
- }
- FXSYS_memset(dst_buf + len_org, 0, dst_len - len_org);
- return dst_buf != NULL;
- }
- return TRUE;
-}
-static inline void _gif_cut_index(uint8_t& val,
- FX_DWORD index,
- uint8_t index_bit,
- uint8_t index_bit_use,
- uint8_t bit_use) {
- FX_DWORD cut = ((1 << (index_bit - index_bit_use)) - 1) << index_bit_use;
- val |= ((index & cut) >> index_bit_use) << bit_use;
-}
-static inline uint8_t _gif_cut_buf(const uint8_t* buf,
- FX_DWORD& offset,
- uint8_t bit_cut,
- uint8_t& bit_offset,
- FX_DWORD& bit_num) {
- if (bit_cut != 8) {
- FX_WORD index = 0;
- index |= ((1 << bit_cut) - 1) << (7 - bit_offset);
- uint8_t ret = ((index & buf[offset]) >> (7 - bit_offset));
- bit_offset += bit_cut;
- if (bit_offset >= 8) {
- if (bit_offset > 8) {
- ret |= ((index & (buf[offset + 1] << 8)) >> 8);
- }
- bit_offset -= 8;
- offset++;
- }
- bit_num += bit_cut;
- return ret;
- }
- bit_num += bit_cut;
- return buf[offset++];
-}
-CGifLZWEncoder::CGifLZWEncoder() {
- FXSYS_memset(this, 0, sizeof(CGifLZWEncoder));
-}
-CGifLZWEncoder::~CGifLZWEncoder() {}
-void CGifLZWEncoder::ClearTable() {
- index_bit_cur = code_size + 1;
- index_num = code_end + 1;
- table_cur = code_end + 1;
- for (FX_WORD i = 0; i < GIF_MAX_LZW_CODE; i++) {
- code_table[i].prefix = 0;
- code_table[i].suffix = 0;
- }
-}
-void CGifLZWEncoder::Start(uint8_t code_len,
- const uint8_t* src_buf,
- uint8_t*& dst_buf,
- FX_DWORD& offset) {
- code_size = code_len + 1;
- src_bit_cut = code_size;
- if (code_len == 0) {
- src_bit_cut = 1;
- code_size = 2;
- }
- code_clear = 1 << code_size;
- code_end = code_clear + 1;
- dst_buf[offset++] = code_size;
- bit_offset = 0;
- ClearTable();
- src_offset = 0;
- src_bit_offset = 0;
- src_bit_num = 0;
- code_table[index_num].prefix = _gif_cut_buf(src_buf, src_offset, src_bit_cut,
- src_bit_offset, src_bit_num);
- code_table[index_num].suffix = _gif_cut_buf(src_buf, src_offset, src_bit_cut,
- src_bit_offset, src_bit_num);
-}
-void CGifLZWEncoder::WriteBlock(uint8_t*& dst_buf,
- FX_DWORD& dst_len,
- FX_DWORD& offset) {
- if (!_gif_grow_buf(dst_buf, dst_len, offset + GIF_DATA_BLOCK + 1)) {
- longjmp(jmp, 1);
- }
- dst_buf[offset++] = index_buf_len;
- FXSYS_memcpy(&dst_buf[offset], index_buf, index_buf_len);
- offset += index_buf_len;
- FXSYS_memset(index_buf, 0, GIF_DATA_BLOCK);
- index_buf_len = 0;
-}
-void CGifLZWEncoder::EncodeString(FX_DWORD index,
- uint8_t*& dst_buf,
- FX_DWORD& dst_len,
- FX_DWORD& offset) {
- uint8_t index_bit_use;
- index_bit_use = 0;
- if (index_buf_len == GIF_DATA_BLOCK) {
- WriteBlock(dst_buf, dst_len, offset);
- }
- _gif_cut_index(index_buf[index_buf_len], index, index_bit_cur, index_bit_use,
- bit_offset);
- if (index_bit_cur <= (8 - bit_offset)) {
- bit_offset += index_bit_cur;
- } else if (index_bit_cur <= (16 - bit_offset)) {
- index_bit_use += (8 - bit_offset);
- bit_offset = 0;
- index_buf_len++;
- if (index_buf_len == GIF_DATA_BLOCK) {
- WriteBlock(dst_buf, dst_len, offset);
- }
- _gif_cut_index(index_buf[index_buf_len], index, index_bit_cur,
- index_bit_use, bit_offset);
- bit_offset = index_bit_cur - index_bit_use;
- } else {
- index_bit_use += (8 - bit_offset);
- bit_offset = 0;
- index_buf_len++;
- if (index_buf_len == GIF_DATA_BLOCK) {
- WriteBlock(dst_buf, dst_len, offset);
- }
- _gif_cut_index(index_buf[index_buf_len], index, index_bit_cur,
- index_bit_use, bit_offset);
- index_bit_use += 8;
- bit_offset = 0;
- index_buf_len++;
- if (index_buf_len == GIF_DATA_BLOCK) {
- WriteBlock(dst_buf, dst_len, offset);
- }
- _gif_cut_index(index_buf[index_buf_len], index, index_bit_cur,
- index_bit_use, bit_offset);
- bit_offset = index_bit_cur - index_bit_use;
- }
- if (bit_offset == 8) {
- bit_offset = 0;
- index_buf_len++;
- if (index_buf_len == GIF_DATA_BLOCK) {
- WriteBlock(dst_buf, dst_len, offset);
- }
- }
- if (index == code_end) {
- index_buf_len++;
- WriteBlock(dst_buf, dst_len, offset);
- }
- if (index_num++ >> index_bit_cur) {
- index_bit_cur++;
- }
-}
-FX_BOOL CGifLZWEncoder::Encode(const uint8_t* src_buf,
- FX_DWORD src_len,
- uint8_t*& dst_buf,
- FX_DWORD& dst_len,
- FX_DWORD& offset) {
- uint8_t suffix;
- if (setjmp(jmp)) {
- return FALSE;
- }
- while (src_bit_num < src_len) {
- if (!LookUpInTable(src_buf, src_offset, src_bit_offset)) {
- EncodeString(code_table[index_num].prefix, dst_buf, dst_len, offset);
- if (index_num == GIF_MAX_LZW_CODE) {
- suffix = code_table[index_num - 1].suffix;
- EncodeString(code_clear, dst_buf, dst_len, offset);
- ClearTable();
- code_table[index_num].prefix = suffix;
- code_table[index_num].suffix = _gif_cut_buf(
- src_buf, src_offset, src_bit_cut, src_bit_offset, src_bit_num);
- } else {
- code_table[index_num].prefix = code_table[index_num - 1].suffix;
- code_table[index_num].suffix = _gif_cut_buf(
- src_buf, src_offset, src_bit_cut, src_bit_offset, src_bit_num);
- }
- }
- }
- src_offset = 0;
- src_bit_offset = 0;
- src_bit_num = 0;
- return TRUE;
-}
-FX_BOOL CGifLZWEncoder::LookUpInTable(const uint8_t* buf,
- FX_DWORD& offset,
- uint8_t& bit_offset) {
- for (FX_WORD i = table_cur; i < index_num; i++) {
- if (code_table[i].prefix == code_table[index_num].prefix &&
- code_table[i].suffix == code_table[index_num].suffix) {
- code_table[index_num].prefix = i;
- code_table[index_num].suffix =
- _gif_cut_buf(buf, offset, src_bit_cut, bit_offset, src_bit_num);
- table_cur = i;
- return TRUE;
- }
- }
- table_cur = code_end + 1;
- return FALSE;
-}
-void CGifLZWEncoder::Finish(uint8_t*& dst_buf,
- FX_DWORD& dst_len,
- FX_DWORD& offset) {
- EncodeString(code_table[index_num].prefix, dst_buf, dst_len, offset);
- EncodeString(code_end, dst_buf, dst_len, offset);
- bit_offset = 0;
- ClearTable();
-}
-gif_decompress_struct_p _gif_create_decompress() {
- gif_decompress_struct_p gif_ptr =
- (gif_decompress_struct*)FX_Alloc(uint8_t, sizeof(gif_decompress_struct));
- if (gif_ptr == NULL) {
- return NULL;
- }
- FXSYS_memset(gif_ptr, 0, sizeof(gif_decompress_struct));
- gif_ptr->decode_status = GIF_D_STATUS_SIG;
- gif_ptr->img_ptr_arr_ptr = new CFX_ArrayTemplate<GifImage*>;
-#ifdef GIF_SUPPORT_COMMENT_EXTENSION
- gif_ptr->cmt_data_ptr = new CFX_ByteString;
-#endif
-#ifdef GIF_SUPPORT_PLAIN_TEXT_EXTENSION
- gif_ptr->pt_ptr_arr_ptr = new CFX_ArrayTemplate<GifPlainText*>;
-#endif
- return gif_ptr;
-}
-void _gif_destroy_decompress(gif_decompress_struct_pp gif_ptr_ptr) {
- if (gif_ptr_ptr == NULL || *gif_ptr_ptr == NULL) {
- return;
- }
- gif_decompress_struct_p gif_ptr = *gif_ptr_ptr;
- *gif_ptr_ptr = NULL;
- if (gif_ptr->global_pal_ptr != NULL) {
- FX_Free(gif_ptr->global_pal_ptr);
- }
- if (gif_ptr->img_decoder_ptr != NULL) {
- delete gif_ptr->img_decoder_ptr;
- }
- if (gif_ptr->img_ptr_arr_ptr != NULL) {
- int32_t size_img_arr = gif_ptr->img_ptr_arr_ptr->GetSize();
- for (int32_t i = 0; i < size_img_arr; i++) {
- GifImage* p = gif_ptr->img_ptr_arr_ptr->GetAt(i);
- if (p->image_info_ptr != NULL) {
- FX_Free(p->image_info_ptr);
- }
- if (p->image_gce_ptr != NULL) {
- FX_Free(p->image_gce_ptr);
- }
- if (p->image_row_buf != NULL) {
- FX_Free(p->image_row_buf);
- }
- if (p->local_pal_ptr != NULL &&
- p->local_pal_ptr != gif_ptr->global_pal_ptr) {
- FX_Free(p->local_pal_ptr);
- }
- FX_Free(p);
- }
- gif_ptr->img_ptr_arr_ptr->RemoveAll();
- delete gif_ptr->img_ptr_arr_ptr;
- }
-#ifdef GIF_SUPPORT_APPLICATION_EXTENSION
- if (gif_ptr->app_data != NULL) {
- FX_Free(gif_ptr->app_data);
- }
-#endif
-#ifdef GIF_SUPPORT_COMMENT_EXTENSION
- if (gif_ptr->cmt_data_ptr != NULL) {
- delete gif_ptr->cmt_data_ptr;
- }
-#endif
-#ifdef GIF_SUPPORT_GRAPHIC_CONTROL_EXTENSION
- if (gif_ptr->gce_ptr != NULL) {
- FX_Free(gif_ptr->gce_ptr);
- }
-#endif
-#ifdef GIF_SUPPORT_PLAIN_TEXT_EXTENSION
- if (gif_ptr->pt_ptr_arr_ptr != NULL) {
- int32_t size_pt_arr = gif_ptr->pt_ptr_arr_ptr->GetSize();
- for (int32_t i = 0; i < size_pt_arr; i++) {
- GifPlainText* p = gif_ptr->pt_ptr_arr_ptr->GetAt(i);
- if (p->gce_ptr != NULL) {
- FX_Free(p->gce_ptr);
- }
- if (p->pte_ptr != NULL) {
- FX_Free(p->pte_ptr);
- }
- if (p->string_ptr != NULL) {
- delete p->string_ptr;
- }
- }
- gif_ptr->pt_ptr_arr_ptr->RemoveAll();
- delete gif_ptr->pt_ptr_arr_ptr;
- }
-#endif
- FX_Free(gif_ptr);
-}
-gif_compress_struct_p _gif_create_compress() {
- gif_compress_struct_p gif_ptr =
- (gif_compress_struct*)FX_Alloc(uint8_t, sizeof(gif_compress_struct));
- if (gif_ptr == NULL) {
- return NULL;
- }
- FXSYS_memset(gif_ptr, 0, sizeof(gif_compress_struct));
- gif_ptr->img_encoder_ptr = new CGifLZWEncoder;
- gif_ptr->header_ptr = (GifHeader*)FX_Alloc(uint8_t, sizeof(GifHeader));
- if (gif_ptr->header_ptr == NULL) {
- delete (gif_ptr->img_encoder_ptr);
- FX_Free(gif_ptr);
- return NULL;
- }
- FXSYS_memcpy(gif_ptr->header_ptr->signature, GIF_SIGNATURE, 3);
- FXSYS_memcpy(gif_ptr->header_ptr->version, "89a", 3);
- gif_ptr->lsd_ptr = (GifLSD*)FX_Alloc(uint8_t, sizeof(GifLSD));
- if (gif_ptr->lsd_ptr == NULL) {
- FX_Free(gif_ptr->header_ptr);
- delete (gif_ptr->img_encoder_ptr);
- FX_Free(gif_ptr);
- return NULL;
- }
- FXSYS_memset(gif_ptr->lsd_ptr, 0, sizeof(GifLSD));
- gif_ptr->image_info_ptr =
- (GifImageInfo*)FX_Alloc(uint8_t, sizeof(GifImageInfo));
- if (gif_ptr->image_info_ptr == NULL) {
- FX_Free(gif_ptr->lsd_ptr);
- FX_Free(gif_ptr->header_ptr);
- delete (gif_ptr->img_encoder_ptr);
- FX_Free(gif_ptr);
- return NULL;
- }
- FXSYS_memset(gif_ptr->image_info_ptr, 0, sizeof(GifImageInfo));
-#ifdef GIF_SUPPORT_APPLICATION_EXTENSION
- FXSYS_memcpy(gif_ptr->app_identify, "netscape", 8);
- FXSYS_memcpy(gif_ptr->app_authentication, "2.0", 3);
-#endif
-#ifdef GIF_SUPPORT_GRAPHIC_CONTROL_EXTENSION
- gif_ptr->gce_ptr = (GifGCE*)FX_Alloc(uint8_t, sizeof(GifGCE));
- if (gif_ptr->gce_ptr == NULL) {
- FX_Free(gif_ptr->image_info_ptr);
- FX_Free(gif_ptr->lsd_ptr);
- FX_Free(gif_ptr->header_ptr);
- delete (gif_ptr->img_encoder_ptr);
- FX_Free(gif_ptr);
- return NULL;
- }
-#endif
-#ifdef GIF_SUPPORT_PLAIN_TEXT_EXTENSION
- gif_ptr->pte_ptr = (GifPTE*)FX_Alloc(uint8_t, sizeof(GifPTE));
- if (gif_ptr->pte_ptr == NULL) {
- FX_Free(gif_ptr->gce_ptr);
- FX_Free(gif_ptr->image_info_ptr);
- FX_Free(gif_ptr->lsd_ptr);
- FX_Free(gif_ptr->header_ptr);
- delete (gif_ptr->img_encoder_ptr);
- FX_Free(gif_ptr);
- return NULL;
- }
- FXSYS_memset(gif_ptr->pte_ptr, 0, sizeof(GifPTE));
- gif_ptr->pte_ptr->block_size = 12;
-#endif
- return gif_ptr;
-}
-void _gif_destroy_compress(gif_compress_struct_pp gif_ptr_ptr) {
- if (gif_ptr_ptr == NULL || *gif_ptr_ptr == NULL) {
- return;
- }
- gif_compress_struct_p gif_ptr = *gif_ptr_ptr;
- *gif_ptr_ptr = NULL;
- if (gif_ptr->header_ptr != NULL) {
- FX_Free(gif_ptr->header_ptr);
- }
- if (gif_ptr->lsd_ptr != NULL) {
- FX_Free(gif_ptr->lsd_ptr);
- }
- if (gif_ptr->global_pal != NULL) {
- FX_Free(gif_ptr->global_pal);
- }
- if (gif_ptr->image_info_ptr != NULL) {
- FX_Free(gif_ptr->image_info_ptr);
- }
- if (gif_ptr->local_pal != NULL) {
- FX_Free(gif_ptr->local_pal);
- }
- if (gif_ptr->img_encoder_ptr != NULL) {
- delete gif_ptr->img_encoder_ptr;
- }
-#ifdef GIF_SUPPORT_APPLICATION_EXTENSION
- if (gif_ptr->app_data != NULL) {
- FX_Free(gif_ptr->app_data);
- }
-#endif
-#ifdef GIF_SUPPORT_GRAPHIC_CONTROL_EXTENSION
- if (gif_ptr->gce_ptr != NULL) {
- FX_Free(gif_ptr->gce_ptr);
- }
-#endif
-#ifdef GIF_SUPPORT_COMMENT_EXTENSION
- if (gif_ptr->cmt_data_ptr != NULL) {
- FX_Free(gif_ptr->cmt_data_ptr);
- }
-#endif
-#ifdef GIF_SUPPORT_PLAIN_TEXT_EXTENSION
- if (gif_ptr->pte_ptr != NULL) {
- FX_Free(gif_ptr->pte_ptr);
- }
-#endif
- FX_Free(gif_ptr);
-}
-void _gif_error(gif_decompress_struct_p gif_ptr, const FX_CHAR* err_msg) {
- if (gif_ptr != NULL && gif_ptr->_gif_error_fn != NULL) {
- gif_ptr->_gif_error_fn(gif_ptr, err_msg);
- }
-}
-void _gif_warn(gif_decompress_struct_p gif_ptr, const FX_CHAR* err_msg) {}
-int32_t _gif_read_header(gif_decompress_struct_p gif_ptr) {
- if (gif_ptr == NULL) {
- return 0;
- }
- FX_DWORD skip_size_org = gif_ptr->skip_size;
- ASSERT(sizeof(GifHeader) == 6);
- GifHeader* gif_header_ptr = NULL;
- if (_gif_read_data(gif_ptr, (uint8_t**)&gif_header_ptr, 6) == NULL) {
- return 2;
- }
- if (FXSYS_strncmp(gif_header_ptr->signature, GIF_SIGNATURE, 3) != 0 ||
- gif_header_ptr->version[0] != '8' || gif_header_ptr->version[2] != 'a') {
- _gif_error(gif_ptr, "Not A Gif Image");
- return 0;
- }
- ASSERT(sizeof(GifLSD) == 7);
- GifLSD* gif_lsd_ptr = NULL;
- if (_gif_read_data(gif_ptr, (uint8_t**)&gif_lsd_ptr, 7) == NULL) {
- gif_ptr->skip_size = skip_size_org;
- return 2;
- }
- if (((GifGF*)&gif_lsd_ptr->global_flag)->global_pal) {
- gif_ptr->global_pal_num = 2
- << ((GifGF*)&gif_lsd_ptr->global_flag)->pal_bits;
- ASSERT(sizeof(GifPalette) == 3);
- int32_t global_pal_size = gif_ptr->global_pal_num * 3;
- uint8_t* global_pal_ptr = NULL;
- if (_gif_read_data(gif_ptr, &global_pal_ptr, global_pal_size) == NULL) {
- gif_ptr->skip_size = skip_size_org;
- return 2;
- }
- gif_ptr->global_sort_flag = ((GifGF*)&gif_lsd_ptr->global_flag)->sort_flag;
- gif_ptr->global_color_resolution =
- ((GifGF*)&gif_lsd_ptr->global_flag)->color_resolution;
- if (gif_ptr->global_pal_ptr != NULL) {
- FX_Free(gif_ptr->global_pal_ptr);
- }
- gif_ptr->global_pal_ptr = NULL;
- gif_ptr->global_pal_ptr = (GifPalette*)FX_Alloc(uint8_t, global_pal_size);
- GIF_PTR_NOT_NULL(gif_ptr->global_pal_ptr, gif_ptr);
- FXSYS_memcpy(gif_ptr->global_pal_ptr, global_pal_ptr, global_pal_size);
- }
- gif_ptr->width = (int)_GetWord_LSBFirst((uint8_t*)&gif_lsd_ptr->width);
- gif_ptr->height = (int)_GetWord_LSBFirst((uint8_t*)&gif_lsd_ptr->height);
- gif_ptr->bc_index = gif_lsd_ptr->bc_index;
- gif_ptr->pixel_aspect = gif_lsd_ptr->pixel_aspect;
- return 1;
-}
-int32_t _gif_get_frame(gif_decompress_struct_p gif_ptr) {
- if (gif_ptr == NULL) {
- return 0;
- }
- int32_t ret = 1;
- while (TRUE) {
- switch (gif_ptr->decode_status) {
- case GIF_D_STATUS_TAIL:
- return 1;
- case GIF_D_STATUS_SIG: {
- uint8_t* sig_ptr = NULL;
- if (_gif_read_data(gif_ptr, &sig_ptr, 1) == NULL) {
- return 2;
- }
- switch (*sig_ptr) {
- case GIF_SIG_EXTENSION:
- _gif_save_decoding_status(gif_ptr, GIF_D_STATUS_EXT);
- continue;
- case GIF_SIG_IMAGE:
- _gif_save_decoding_status(gif_ptr, GIF_D_STATUS_IMG_INFO);
- continue;
- case GIF_SIG_TRAILER:
- _gif_save_decoding_status(gif_ptr, GIF_D_STATUS_TAIL);
- return 1;
- default:
- if (gif_ptr->avail_in) {
- _gif_warn(gif_ptr, "The Gif File has non_standard Tag!");
- _gif_save_decoding_status(gif_ptr, GIF_D_STATUS_SIG);
- continue;
- }
- _gif_warn(gif_ptr, "The Gif File Doesn't have Trailer Tag!");
- return 1;
- }
- }
- case GIF_D_STATUS_EXT: {
- uint8_t* ext_ptr = NULL;
- if (_gif_read_data(gif_ptr, &ext_ptr, 1) == NULL) {
- return 2;
- }
- switch (*ext_ptr) {
-#ifdef GIF_SUPPORT_APPLICATION_EXTENSION
- case GIF_BLOCK_AE:
- _gif_save_decoding_status(gif_ptr, GIF_D_STATUS_EXT_AE);
- continue;
-#endif
-#ifdef GIF_SUPPORT_COMMENT_EXTENSION
- case GIF_BLOCK_CE:
- _gif_save_decoding_status(gif_ptr, GIF_D_STATUS_EXT_CE);
- continue;
-#endif
-#ifdef GIF_SUPPORT_GRAPHIC_CONTROL_EXTENSION
- case GIF_BLOCK_GCE:
- _gif_save_decoding_status(gif_ptr, GIF_D_STATUS_EXT_GCE);
- continue;
-#endif
-#ifdef GIF_SUPPORT_PLAIN_TEXT_EXTENSION
- case GIF_BLOCK_PTE:
- _gif_save_decoding_status(gif_ptr, GIF_D_STATUS_EXT_PTE);
- continue;
-#endif
- default: {
- int32_t status = GIF_D_STATUS_EXT_UNE;
-#ifndef GIF_SUPPORT_PLAIN_TEXT_EXTENSION
- if (*ext_ptr == GIF_BLOCK_PTE) {
- status = GIF_D_STATUS_EXT_PTE;
- }
-#endif
- _gif_save_decoding_status(gif_ptr, status);
- continue;
- }
- }
- }
- case GIF_D_STATUS_IMG_INFO: {
- ret = _gif_decode_image_info(gif_ptr);
- if (ret != 1) {
- return ret;
- }
- continue;
- }
- case GIF_D_STATUS_IMG_DATA: {
- uint8_t* data_size_ptr = NULL;
- uint8_t* data_ptr = NULL;
- FX_DWORD skip_size_org = gif_ptr->skip_size;
- if (_gif_read_data(gif_ptr, &data_size_ptr, 1) == NULL) {
- return 2;
- }
- while (*data_size_ptr != GIF_BLOCK_TERMINAL) {
- if (_gif_read_data(gif_ptr, &data_ptr, *data_size_ptr) == NULL) {
- gif_ptr->skip_size = skip_size_org;
- return 2;
- }
- _gif_save_decoding_status(gif_ptr, GIF_D_STATUS_IMG_DATA);
- skip_size_org = gif_ptr->skip_size;
- if (_gif_read_data(gif_ptr, &data_size_ptr, 1) == NULL) {
- return 2;
- }
- }
- _gif_save_decoding_status(gif_ptr, GIF_D_STATUS_SIG);
- continue;
- }
- default: {
- ret = _gif_decode_extension(gif_ptr);
- if (ret != 1) {
- return ret;
- }
- continue;
- }
- }
- }
- return 1;
-}
-void _gif_takeover_gce_ptr(gif_decompress_struct_p gif_ptr,
- GifGCE** gce_ptr_ptr) {
- *gce_ptr_ptr = NULL;
-#ifdef GIF_SUPPORT_GRAPHIC_CONTROL_EXTENSION
- if (gif_ptr->gce_ptr != NULL && gce_ptr_ptr != NULL) {
- *gce_ptr_ptr = gif_ptr->gce_ptr;
- gif_ptr->gce_ptr = NULL;
- }
-#endif
-}
-int32_t _gif_decode_extension(gif_decompress_struct_p gif_ptr) {
- uint8_t* data_size_ptr = NULL;
- uint8_t* data_ptr = NULL;
- FX_DWORD skip_size_org = gif_ptr->skip_size;
- switch (gif_ptr->decode_status) {
-#ifdef GIF_SUPPORT_APPLICATION_EXTENSION
- case GIF_D_STATUS_EXT_AE: {
- ASSERT(sizeof(GifAE) == 12);
- GifAE* gif_ae_ptr = NULL;
- if (_gif_read_data(gif_ptr, (uint8_t**)&gif_ae_ptr, 12) == NULL) {
- return 2;
- }
- CFX_ByteString gif_ae_data_str;
- if (_gif_read_data(gif_ptr, &data_size_ptr, 1) == NULL) {
- gif_ptr->skip_size = skip_size_org;
- return 2;
- }
- while (*data_size_ptr != GIF_BLOCK_TERMINAL) {
- uint8_t data_size = *data_size_ptr;
- if (_gif_read_data(gif_ptr, &data_ptr, *data_size_ptr) == NULL ||
- _gif_read_data(gif_ptr, &data_size_ptr, 1) == NULL) {
- gif_ptr->skip_size = skip_size_org;
- return 2;
- }
- gif_ae_data_str += CFX_ByteString((const uint8_t*)data_ptr, data_size);
- }
- FXSYS_memcpy(gif_ptr->app_identify, gif_ae_ptr->app_identify, 8);
- FXSYS_memcpy(gif_ptr->app_authentication, gif_ae_ptr->app_authentication,
- 3);
- gif_ptr->app_data_size = gif_ae_data_str.GetLength();
- if (gif_ptr->app_data != NULL) {
- FX_Free(gif_ptr->app_data);
- gif_ptr->app_data = NULL;
- }
- gif_ptr->app_data = FX_Alloc(uint8_t, gif_ptr->app_data_size);
- GIF_PTR_NOT_NULL(gif_ptr->app_data, gif_ptr);
- FXSYS_memcpy(gif_ptr->app_data, const uint8_t*(gif_ae_data_str),
- gif_ptr->app_data_size);
- } break;
-#endif
-#ifdef GIF_SUPPORT_COMMENT_EXTENSION
- case GIF_D_STATUS_EXT_CE: {
- if (_gif_read_data(gif_ptr, &data_size_ptr, 1) == NULL) {
- gif_ptr->skip_size = skip_size_org;
- return 2;
- }
- gif_ptr->cmt_data_ptr->Empty();
- while (*data_size_ptr != GIF_BLOCK_TERMINAL) {
- uint8_t data_size = *data_size_ptr;
- if (_gif_read_data(gif_ptr, &data_ptr, *data_size_ptr) == NULL ||
- _gif_read_data(gif_ptr, &data_size_ptr, 1) == NULL) {
- gif_ptr->skip_size = skip_size_org;
- return 2;
- }
- *(gif_ptr->cmt_data_ptr) +=
- CFX_ByteString((const FX_CHAR*)data_ptr, data_size);
- }
- } break;
-#endif
-#ifdef GIF_SUPPORT_PLAIN_TEXT_EXTENSION
- case GIF_D_STATUS_EXT_PTE: {
- ASSERT(sizeof(GifPTE) == 13);
- GifPTE* gif_pte_ptr = NULL;
- if (_gif_read_data(gif_ptr, (uint8_t**)&gif_pte_ptr, 13) == NULL) {
- return 2;
- }
- GifPlainText* gif_pt_ptr = FX_Alloc(GifPlainText, 1);
- GIF_PTR_NOT_NULL(gif_pt_ptr, gif_ptr);
- FXSYS_memset(gif_pt_ptr, 0, sizeof(GifPlainText));
- _gif_takeover_gce_ptr(gif_ptr, &gif_pt_ptr->gce_ptr);
- gif_pt_ptr->pte_ptr = (GifPTE*)FX_Alloc(uint8_t, sizeof(GifPTE));
- GIF_PTR_NOT_NULL(gif_pt_ptr->pte_ptr, gif_ptr);
- gif_pt_ptr->string_ptr = new CFX_ByteString;
- GIF_PTR_NOT_NULL(gif_pt_ptr->string_ptr, gif_ptr);
- gif_pt_ptr->pte_ptr->block_size = gif_pte_ptr->block_size;
- gif_pt_ptr->pte_ptr->grid_left =
- _GetWord_LSBFirst((uint8_t*)&gif_pte_ptr->grid_left);
- gif_pt_ptr->pte_ptr->grid_top =
- _GetWord_LSBFirst((uint8_t*)&gif_pte_ptr->grid_top);
- gif_pt_ptr->pte_ptr->grid_width =
- _GetWord_LSBFirst((uint8_t*)&gif_pte_ptr->grid_width);
- gif_pt_ptr->pte_ptr->grid_height =
- _GetWord_LSBFirst((uint8_t*)&gif_pte_ptr->grid_height);
- gif_pt_ptr->pte_ptr->char_width = gif_pte_ptr->char_width;
- gif_pt_ptr->pte_ptr->char_height = gif_pte_ptr->char_height;
- gif_pt_ptr->pte_ptr->fc_index = gif_pte_ptr->fc_index;
- gif_pt_ptr->pte_ptr->bc_index = gif_pte_ptr->bc_index;
- if (_gif_read_data(gif_ptr, &data_size_ptr, 1) == NULL) {
- gif_ptr->skip_size = skip_size_org;
- if (gif_pt_ptr != NULL) {
- if (gif_pt_ptr->gce_ptr != NULL) {
- FX_Free(gif_pt_ptr->gce_ptr);
- }
- if (gif_pt_ptr->pte_ptr != NULL) {
- FX_Free(gif_pt_ptr->pte_ptr);
- }
- if (gif_pt_ptr->string_ptr != NULL) {
- delete gif_pt_ptr->string_ptr;
- }
- FX_Free(gif_pt_ptr);
- }
- return 2;
- }
- while (*data_size_ptr != GIF_BLOCK_TERMINAL) {
- uint8_t data_size = *data_size_ptr;
- if (_gif_read_data(gif_ptr, &data_ptr, *data_size_ptr) == NULL ||
- _gif_read_data(gif_ptr, &data_size_ptr, 1) == NULL) {
- gif_ptr->skip_size = skip_size_org;
- if (gif_pt_ptr != NULL) {
- if (gif_pt_ptr->gce_ptr != NULL) {
- FX_Free(gif_pt_ptr->gce_ptr);
- }
- if (gif_pt_ptr->pte_ptr != NULL) {
- FX_Free(gif_pt_ptr->pte_ptr);
- }
- if (gif_pt_ptr->string_ptr != NULL) {
- delete gif_pt_ptr->string_ptr;
- }
- FX_Free(gif_pt_ptr);
- }
- return 2;
- }
- *(gif_pt_ptr->string_ptr) +=
- CFX_ByteString((const FX_CHAR*)data_ptr, data_size);
- }
- gif_ptr->pt_ptr_arr_ptr->Add(gif_pt_ptr);
- } break;
-#endif
-#ifdef GIF_SUPPORT_GRAPHIC_CONTROL_EXTENSION
- case GIF_D_STATUS_EXT_GCE: {
- ASSERT(sizeof(GifGCE) == 5);
- GifGCE* gif_gce_ptr = NULL;
- if (_gif_read_data(gif_ptr, (uint8_t**)&gif_gce_ptr, 6) == NULL) {
- return 2;
- }
- if (gif_ptr->gce_ptr == NULL) {
- gif_ptr->gce_ptr = (GifGCE*)FX_Alloc(uint8_t, sizeof(GifGCE));
- GIF_PTR_NOT_NULL(gif_ptr->gce_ptr, gif_ptr);
- }
- gif_ptr->gce_ptr->block_size = gif_gce_ptr->block_size;
- gif_ptr->gce_ptr->gce_flag = gif_gce_ptr->gce_flag;
- gif_ptr->gce_ptr->delay_time =
- _GetWord_LSBFirst((uint8_t*)&gif_gce_ptr->delay_time);
- gif_ptr->gce_ptr->trans_index = gif_gce_ptr->trans_index;
- } break;
-#endif
- default: {
-#ifndef GIF_SUPPORT_PLAIN_TEXT_EXTENSION
- if (gif_ptr->decode_status == GIF_D_STATUS_EXT_PTE) {
-#ifdef GIF_SUPPORT_GRAPHIC_CONTROL_EXTENSION
- if (gif_ptr->gce_ptr != NULL) {
- FX_Free(gif_ptr->gce_ptr);
- gif_ptr->gce_ptr = NULL;
- }
-#endif
- }
-#endif
- if (_gif_read_data(gif_ptr, &data_size_ptr, 1) == NULL) {
- return 2;
- }
- while (*data_size_ptr != GIF_BLOCK_TERMINAL) {
- if (_gif_read_data(gif_ptr, &data_ptr, *data_size_ptr) == NULL ||
- _gif_read_data(gif_ptr, &data_size_ptr, 1) == NULL) {
- gif_ptr->skip_size = skip_size_org;
- return 2;
- }
- }
- }
- }
- _gif_save_decoding_status(gif_ptr, GIF_D_STATUS_SIG);
- return 1;
-}
-int32_t _gif_decode_image_info(gif_decompress_struct_p gif_ptr) {
- if (gif_ptr->width == 0 || gif_ptr->height == 0) {
- _gif_error(gif_ptr, "No Image Header Info");
- return 0;
- }
- FX_DWORD skip_size_org = gif_ptr->skip_size;
- ASSERT(sizeof(GifImageInfo) == 9);
- GifImageInfo* gif_img_info_ptr = NULL;
- if (_gif_read_data(gif_ptr, (uint8_t**)&gif_img_info_ptr, 9) == NULL) {
- return 2;
- }
- GifImage* gif_image_ptr = (GifImage*)FX_Alloc(uint8_t, sizeof(GifImage));
- GIF_PTR_NOT_NULL(gif_image_ptr, gif_ptr);
- FXSYS_memset(gif_image_ptr, 0, sizeof(GifImage));
- gif_image_ptr->image_info_ptr =
- (GifImageInfo*)FX_Alloc(uint8_t, sizeof(GifImageInfo));
- GIF_PTR_NOT_NULL(gif_image_ptr->image_info_ptr, gif_ptr);
- gif_image_ptr->image_info_ptr->left =
- _GetWord_LSBFirst((uint8_t*)&gif_img_info_ptr->left);
- gif_image_ptr->image_info_ptr->top =
- _GetWord_LSBFirst((uint8_t*)&gif_img_info_ptr->top);
- gif_image_ptr->image_info_ptr->width =
- _GetWord_LSBFirst((uint8_t*)&gif_img_info_ptr->width);
- gif_image_ptr->image_info_ptr->height =
- _GetWord_LSBFirst((uint8_t*)&gif_img_info_ptr->height);
- gif_image_ptr->image_info_ptr->local_flag = gif_img_info_ptr->local_flag;
- if (gif_image_ptr->image_info_ptr->left +
- gif_image_ptr->image_info_ptr->width >
- gif_ptr->width ||
- gif_image_ptr->image_info_ptr->top +
- gif_image_ptr->image_info_ptr->height >
- gif_ptr->height) {
- if (gif_image_ptr->image_info_ptr != NULL) {
- FX_Free(gif_image_ptr->image_info_ptr);
- }
- if (gif_image_ptr->image_row_buf != NULL) {
- FX_Free(gif_image_ptr->image_row_buf);
- }
- FX_Free(gif_image_ptr);
- _gif_error(gif_ptr, "Image Data Out Of LSD, The File May Be Corrupt");
- return 0;
- }
- GifLF* gif_img_info_lf_ptr = (GifLF*)&gif_img_info_ptr->local_flag;
- if (gif_img_info_lf_ptr->local_pal) {
- ASSERT(sizeof(GifPalette) == 3);
- int32_t loc_pal_size = (2 << gif_img_info_lf_ptr->pal_bits) * 3;
- uint8_t* loc_pal_ptr = NULL;
- if (_gif_read_data(gif_ptr, &loc_pal_ptr, loc_pal_size) == NULL) {
- gif_ptr->skip_size = skip_size_org;
- if (gif_image_ptr->image_info_ptr != NULL) {
- FX_Free(gif_image_ptr->image_info_ptr);
- }
- if (gif_image_ptr->image_row_buf != NULL) {
- FX_Free(gif_image_ptr->image_row_buf);
- }
- FX_Free(gif_image_ptr);
- return 2;
- }
- gif_image_ptr->local_pal_ptr =
- (GifPalette*)gif_ptr->_gif_ask_buf_for_pal_fn(gif_ptr, loc_pal_size);
- if (gif_image_ptr->local_pal_ptr != NULL) {
- FXSYS_memcpy((uint8_t*)gif_image_ptr->local_pal_ptr, loc_pal_ptr,
- loc_pal_size);
- }
- }
- uint8_t* code_size_ptr = NULL;
- if (_gif_read_data(gif_ptr, &code_size_ptr, 1) == NULL) {
- gif_ptr->skip_size = skip_size_org;
- if (gif_image_ptr->image_info_ptr != NULL) {
- FX_Free(gif_image_ptr->image_info_ptr);
- }
- if (gif_image_ptr->local_pal_ptr != NULL) {
- FX_Free(gif_image_ptr->local_pal_ptr);
- }
- if (gif_image_ptr->image_row_buf != NULL) {
- FX_Free(gif_image_ptr->image_row_buf);
- }
- FX_Free(gif_image_ptr);
- return 2;
- }
- gif_image_ptr->image_code_size = *code_size_ptr;
- gif_ptr->_gif_record_current_position_fn(gif_ptr,
- &gif_image_ptr->image_data_pos);
- gif_image_ptr->image_data_pos += gif_ptr->skip_size;
- _gif_takeover_gce_ptr(gif_ptr, &gif_image_ptr->image_gce_ptr);
- gif_ptr->img_ptr_arr_ptr->Add(gif_image_ptr);
- _gif_save_decoding_status(gif_ptr, GIF_D_STATUS_IMG_DATA);
- return 1;
-}
-int32_t _gif_load_frame(gif_decompress_struct_p gif_ptr, int32_t frame_num) {
- if (gif_ptr == NULL || frame_num < 0 ||
- frame_num >= gif_ptr->img_ptr_arr_ptr->GetSize()) {
- return 0;
- }
- uint8_t* data_size_ptr = NULL;
- uint8_t* data_ptr = NULL;
- FX_DWORD skip_size_org = gif_ptr->skip_size;
- GifImage* gif_image_ptr = gif_ptr->img_ptr_arr_ptr->GetAt(frame_num);
- FX_DWORD gif_img_row_bytes = gif_image_ptr->image_info_ptr->width;
- if (gif_ptr->decode_status == GIF_D_STATUS_TAIL) {
- if (gif_image_ptr->image_row_buf) {
- FX_Free(gif_image_ptr->image_row_buf);
- gif_image_ptr->image_row_buf = NULL;
- }
- gif_image_ptr->image_row_buf = FX_Alloc(uint8_t, gif_img_row_bytes);
- GIF_PTR_NOT_NULL(gif_image_ptr->image_row_buf, gif_ptr);
- GifGCE* gif_img_gce_ptr = gif_image_ptr->image_gce_ptr;
- int32_t loc_pal_num =
- ((GifLF*)&gif_image_ptr->image_info_ptr->local_flag)->local_pal
- ? (2 << ((GifLF*)&gif_image_ptr->image_info_ptr->local_flag)
- ->pal_bits)
- : 0;
- gif_ptr->avail_in = 0;
- if (gif_img_gce_ptr == NULL) {
- FX_BOOL bRes = gif_ptr->_gif_get_record_position_fn(
- gif_ptr, gif_image_ptr->image_data_pos,
- gif_image_ptr->image_info_ptr->left,
- gif_image_ptr->image_info_ptr->top,
- gif_image_ptr->image_info_ptr->width,
- gif_image_ptr->image_info_ptr->height, loc_pal_num,
- gif_image_ptr->local_pal_ptr, 0, 0, -1, 0,
- (FX_BOOL)((GifLF*)&gif_image_ptr->image_info_ptr->local_flag)
- ->interlace);
- if (!bRes) {
- FX_Free(gif_image_ptr->image_row_buf);
- gif_image_ptr->image_row_buf = NULL;
- _gif_error(gif_ptr, "Error Read Record Position Data");
- return 0;
- }
- } else {
- FX_BOOL bRes = gif_ptr->_gif_get_record_position_fn(
- gif_ptr, gif_image_ptr->image_data_pos,
- gif_image_ptr->image_info_ptr->left,
- gif_image_ptr->image_info_ptr->top,
- gif_image_ptr->image_info_ptr->width,
- gif_image_ptr->image_info_ptr->height, loc_pal_num,
- gif_image_ptr->local_pal_ptr,
- (int32_t)gif_image_ptr->image_gce_ptr->delay_time,
- (FX_BOOL)((GifCEF*)&gif_image_ptr->image_gce_ptr->gce_flag)
- ->user_input,
- ((GifCEF*)&gif_image_ptr->image_gce_ptr->gce_flag)->transparency
- ? (int32_t)gif_image_ptr->image_gce_ptr->trans_index
- : -1,
- (int32_t)((GifCEF*)&gif_image_ptr->image_gce_ptr->gce_flag)
- ->disposal_method,
- (FX_BOOL)((GifLF*)&gif_image_ptr->image_info_ptr->local_flag)
- ->interlace);
- if (!bRes) {
- FX_Free(gif_image_ptr->image_row_buf);
- gif_image_ptr->image_row_buf = NULL;
- _gif_error(gif_ptr, "Error Read Record Position Data");
- return 0;
- }
- }
- if (gif_ptr->img_decoder_ptr == NULL) {
- gif_ptr->img_decoder_ptr = new CGifLZWDecoder(gif_ptr->err_ptr);
- GIF_PTR_NOT_NULL(gif_ptr->img_decoder_ptr, gif_ptr);
- }
- gif_ptr->img_decoder_ptr->InitTable(gif_image_ptr->image_code_size);
- gif_ptr->img_row_offset = 0;
- gif_ptr->img_row_avail_size = 0;
- gif_ptr->img_pass_num = 0;
- gif_image_ptr->image_row_num = 0;
- _gif_save_decoding_status(gif_ptr, GIF_D_STATUS_IMG_DATA);
- }
- CGifLZWDecoder* img_decoder_ptr = gif_ptr->img_decoder_ptr;
- if (gif_ptr->decode_status == GIF_D_STATUS_IMG_DATA) {
- if (_gif_read_data(gif_ptr, &data_size_ptr, 1) == NULL) {
- return 2;
- }
- if (*data_size_ptr != GIF_BLOCK_TERMINAL) {
- if (_gif_read_data(gif_ptr, &data_ptr, *data_size_ptr) == NULL) {
- gif_ptr->skip_size = skip_size_org;
- return 2;
- }
- img_decoder_ptr->Input(data_ptr, *data_size_ptr);
- _gif_save_decoding_status(gif_ptr, GIF_D_STATUS_IMG_DATA);
- gif_ptr->img_row_offset += gif_ptr->img_row_avail_size;
- gif_ptr->img_row_avail_size = gif_img_row_bytes - gif_ptr->img_row_offset;
- int32_t ret = img_decoder_ptr->Decode(
- gif_image_ptr->image_row_buf + gif_ptr->img_row_offset,
- gif_ptr->img_row_avail_size);
- if (ret == 0) {
- FX_Free(gif_image_ptr->image_row_buf);
- gif_image_ptr->image_row_buf = NULL;
- _gif_save_decoding_status(gif_ptr, GIF_D_STATUS_TAIL);
- _gif_error(gif_ptr, "Decode Image Data Error");
- return 0;
- }
- while (ret != 0) {
- if (ret == 1) {
- gif_ptr->_gif_get_row_fn(gif_ptr, gif_image_ptr->image_row_num,
- gif_image_ptr->image_row_buf);
- FX_Free(gif_image_ptr->image_row_buf);
- gif_image_ptr->image_row_buf = NULL;
- _gif_save_decoding_status(gif_ptr, GIF_D_STATUS_TAIL);
- return 1;
- }
- if (ret == 2) {
- ASSERT(img_decoder_ptr->GetAvailInput() == 0);
- skip_size_org = gif_ptr->skip_size;
- if (_gif_read_data(gif_ptr, &data_size_ptr, 1) == NULL) {
- return 2;
- }
- if (*data_size_ptr != GIF_BLOCK_TERMINAL) {
- if (_gif_read_data(gif_ptr, &data_ptr, *data_size_ptr) == NULL) {
- gif_ptr->skip_size = skip_size_org;
- return 2;
- }
- img_decoder_ptr->Input(data_ptr, *data_size_ptr);
- _gif_save_decoding_status(gif_ptr, GIF_D_STATUS_IMG_DATA);
- gif_ptr->img_row_offset += gif_ptr->img_row_avail_size;
- gif_ptr->img_row_avail_size =
- gif_img_row_bytes - gif_ptr->img_row_offset;
- ret = img_decoder_ptr->Decode(
- gif_image_ptr->image_row_buf + gif_ptr->img_row_offset,
- gif_ptr->img_row_avail_size);
- }
- }
- if (ret == 3) {
- if (((GifLF*)&gif_image_ptr->image_info_ptr->local_flag)->interlace) {
- gif_ptr->_gif_get_row_fn(gif_ptr, gif_image_ptr->image_row_num,
- gif_image_ptr->image_row_buf);
- gif_image_ptr->image_row_num +=
- s_gif_interlace_step[gif_ptr->img_pass_num];
- if (gif_image_ptr->image_row_num >=
- (int32_t)gif_image_ptr->image_info_ptr->height) {
- gif_ptr->img_pass_num++;
- gif_image_ptr->image_row_num =
- s_gif_interlace_step[gif_ptr->img_pass_num] / 2;
- }
- } else {
- gif_ptr->_gif_get_row_fn(gif_ptr, gif_image_ptr->image_row_num++,
- gif_image_ptr->image_row_buf);
- }
- gif_ptr->img_row_offset = 0;
- gif_ptr->img_row_avail_size = gif_img_row_bytes;
- ret = img_decoder_ptr->Decode(
- gif_image_ptr->image_row_buf + gif_ptr->img_row_offset,
- gif_ptr->img_row_avail_size);
- }
- if (ret == 0) {
- FX_Free(gif_image_ptr->image_row_buf);
- gif_image_ptr->image_row_buf = NULL;
- _gif_save_decoding_status(gif_ptr, GIF_D_STATUS_TAIL);
- _gif_error(gif_ptr, "Decode Image Data Error");
- return 0;
- }
- }
- }
- _gif_save_decoding_status(gif_ptr, GIF_D_STATUS_TAIL);
- }
- _gif_error(gif_ptr, "Decode Image Data Error");
- return 0;
-}
-void _gif_save_decoding_status(gif_decompress_struct_p gif_ptr,
- int32_t status) {
- gif_ptr->decode_status = status;
- gif_ptr->next_in += gif_ptr->skip_size;
- gif_ptr->avail_in -= gif_ptr->skip_size;
- gif_ptr->skip_size = 0;
-}
-uint8_t* _gif_read_data(gif_decompress_struct_p gif_ptr,
- uint8_t** des_buf_pp,
- FX_DWORD data_size) {
- if (gif_ptr == NULL || gif_ptr->avail_in < gif_ptr->skip_size + data_size) {
- return NULL;
- }
- *des_buf_pp = gif_ptr->next_in + gif_ptr->skip_size;
- gif_ptr->skip_size += data_size;
- return *des_buf_pp;
-}
-void _gif_input_buffer(gif_decompress_struct_p gif_ptr,
- uint8_t* src_buf,
- FX_DWORD src_size) {
- gif_ptr->next_in = src_buf;
- gif_ptr->avail_in = src_size;
- gif_ptr->skip_size = 0;
-}
-FX_DWORD _gif_get_avail_input(gif_decompress_struct_p gif_ptr,
- uint8_t** avial_buf_ptr) {
- if (avial_buf_ptr != NULL) {
- *avial_buf_ptr = NULL;
- if (gif_ptr->avail_in > 0) {
- *avial_buf_ptr = gif_ptr->next_in;
- }
- }
- return gif_ptr->avail_in;
-}
-int32_t _gif_get_frame_num(gif_decompress_struct_p gif_ptr) {
- return gif_ptr->img_ptr_arr_ptr->GetSize();
-}
-static FX_BOOL _gif_write_header(gif_compress_struct_p gif_ptr,
- uint8_t*& dst_buf,
- FX_DWORD& dst_len) {
- if (gif_ptr->cur_offset) {
- return TRUE;
- }
- dst_len = sizeof(GifHeader) + sizeof(GifLSD) + sizeof(GifGF);
- dst_buf = FX_TryAlloc(uint8_t, dst_len);
- if (dst_buf == NULL) {
- return FALSE;
- }
- FXSYS_memset(dst_buf, 0, dst_len);
- FXSYS_memcpy(dst_buf, gif_ptr->header_ptr, sizeof(GifHeader));
- gif_ptr->cur_offset += sizeof(GifHeader);
- _SetWord_LSBFirst(dst_buf + gif_ptr->cur_offset, gif_ptr->lsd_ptr->width);
- gif_ptr->cur_offset += 2;
- _SetWord_LSBFirst(dst_buf + gif_ptr->cur_offset, gif_ptr->lsd_ptr->height);
- gif_ptr->cur_offset += 2;
- dst_buf[gif_ptr->cur_offset++] = gif_ptr->lsd_ptr->global_flag;
- dst_buf[gif_ptr->cur_offset++] = gif_ptr->lsd_ptr->bc_index;
- dst_buf[gif_ptr->cur_offset++] = gif_ptr->lsd_ptr->pixel_aspect;
- if (gif_ptr->global_pal) {
- FX_WORD size = sizeof(GifPalette) * gif_ptr->gpal_num;
- if (!_gif_grow_buf(dst_buf, dst_len, gif_ptr->cur_offset + size)) {
- return FALSE;
- }
- FXSYS_memcpy(&dst_buf[gif_ptr->cur_offset], gif_ptr->global_pal, size);
- gif_ptr->cur_offset += size;
- }
- return TRUE;
-}
-void interlace_buf(const uint8_t* buf, FX_DWORD pitch, FX_DWORD height) {
- CFX_ArrayTemplate<uint8_t*> pass[4];
- int i, j;
- FX_DWORD row;
- row = 0;
- uint8_t* temp;
- while (row < height) {
- if (row % 8 == 0) {
- j = 0;
- } else if (row % 4 == 0) {
- j = 1;
- } else if (row % 2 == 0) {
- j = 2;
- } else {
- j = 3;
- }
- temp = FX_Alloc(uint8_t, pitch);
- if (temp == NULL) {
- return;
- }
- FXSYS_memcpy(temp, &buf[pitch * row], pitch);
- pass[j].Add(temp);
- row++;
- }
- for (i = 0, row = 0; i < 4; i++) {
- for (j = 0; j < pass[i].GetSize(); j++, row++) {
- FXSYS_memcpy((uint8_t*)&buf[pitch * row], pass[i].GetAt(j), pitch);
- FX_Free(pass[i].GetAt(j));
- }
- }
-}
-static void _gif_write_block_data(const uint8_t* src_buf,
- FX_DWORD src_len,
- uint8_t*& dst_buf,
- FX_DWORD& dst_len,
- FX_DWORD& dst_offset) {
- FX_DWORD src_offset = 0;
- while (src_len > GIF_DATA_BLOCK) {
- dst_buf[dst_offset++] = GIF_DATA_BLOCK;
- FXSYS_memcpy(&dst_buf[dst_offset], &src_buf[src_offset], GIF_DATA_BLOCK);
- dst_offset += GIF_DATA_BLOCK;
- src_offset += GIF_DATA_BLOCK;
- src_len -= GIF_DATA_BLOCK;
- }
- dst_buf[dst_offset++] = (uint8_t)src_len;
- FXSYS_memcpy(&dst_buf[dst_offset], &src_buf[src_offset], src_len);
- dst_offset += src_len;
-}
-static FX_BOOL _gif_write_data(gif_compress_struct_p gif_ptr,
- uint8_t*& dst_buf,
- FX_DWORD& dst_len) {
- if (!_gif_grow_buf(dst_buf, dst_len, gif_ptr->cur_offset + GIF_DATA_BLOCK)) {
- return FALSE;
- }
-#ifdef GIF_SUPPORT_GRAPHIC_CONTROL_EXTENSION
- if (FXSYS_memcmp(gif_ptr->header_ptr->version, "89a", 3) == 0) {
- dst_buf[gif_ptr->cur_offset++] = GIF_SIG_EXTENSION;
- dst_buf[gif_ptr->cur_offset++] = GIF_BLOCK_GCE;
- gif_ptr->gce_ptr->block_size = 4;
- dst_buf[gif_ptr->cur_offset++] = gif_ptr->gce_ptr->block_size;
- gif_ptr->gce_ptr->gce_flag = 0;
- dst_buf[gif_ptr->cur_offset++] = gif_ptr->gce_ptr->gce_flag;
- gif_ptr->gce_ptr->delay_time = 10;
- _SetWord_LSBFirst(dst_buf + gif_ptr->cur_offset,
- gif_ptr->gce_ptr->delay_time);
- gif_ptr->cur_offset += 2;
- gif_ptr->gce_ptr->trans_index = 0;
- dst_buf[gif_ptr->cur_offset++] = gif_ptr->gce_ptr->trans_index;
- dst_buf[gif_ptr->cur_offset++] = 0;
- }
-#endif
- dst_buf[gif_ptr->cur_offset++] = GIF_SIG_IMAGE;
- _SetWord_LSBFirst(dst_buf + gif_ptr->cur_offset,
- gif_ptr->image_info_ptr->left);
- gif_ptr->cur_offset += 2;
- _SetWord_LSBFirst(dst_buf + gif_ptr->cur_offset,
- gif_ptr->image_info_ptr->top);
- gif_ptr->cur_offset += 2;
- _SetWord_LSBFirst(dst_buf + gif_ptr->cur_offset,
- gif_ptr->image_info_ptr->width);
- gif_ptr->cur_offset += 2;
- _SetWord_LSBFirst(dst_buf + gif_ptr->cur_offset,
- gif_ptr->image_info_ptr->height);
- gif_ptr->cur_offset += 2;
- GifLF& lf = (GifLF&)gif_ptr->image_info_ptr->local_flag;
- dst_buf[gif_ptr->cur_offset++] = gif_ptr->image_info_ptr->local_flag;
- if (gif_ptr->local_pal) {
- FX_DWORD pal_size = sizeof(GifPalette) * gif_ptr->lpal_num;
- if (!_gif_grow_buf(dst_buf, dst_len, pal_size + gif_ptr->cur_offset)) {
- return FALSE;
- }
- FXSYS_memcpy(&dst_buf[gif_ptr->cur_offset], gif_ptr->local_pal, pal_size);
- gif_ptr->cur_offset += pal_size;
- }
- if (lf.interlace) {
- interlace_buf(gif_ptr->src_buf, gif_ptr->src_pitch,
- gif_ptr->image_info_ptr->height);
- }
- uint8_t code_bit = lf.pal_bits;
- if (lf.local_pal == 0) {
- GifGF& gf = (GifGF&)gif_ptr->lsd_ptr->global_flag;
- code_bit = gf.pal_bits;
- }
- gif_ptr->img_encoder_ptr->Start(code_bit, gif_ptr->src_buf, dst_buf,
- gif_ptr->cur_offset);
- FX_DWORD i;
- for (i = 0; i < gif_ptr->src_row; i++) {
- if (!gif_ptr->img_encoder_ptr->Encode(
- &gif_ptr->src_buf[i * gif_ptr->src_pitch],
- gif_ptr->src_width * (code_bit + 1), dst_buf, dst_len,
- gif_ptr->cur_offset)) {
- return FALSE;
- }
- }
- gif_ptr->img_encoder_ptr->Finish(dst_buf, dst_len, gif_ptr->cur_offset);
- dst_buf[gif_ptr->cur_offset++] = 0;
-#ifdef GIF_SUPPORT_COMMENT_EXTENSION
- if (FXSYS_memcmp(gif_ptr->header_ptr->version, "89a", 3) == 0 &&
- gif_ptr->cmt_data_ptr) {
- dst_buf[gif_ptr->cur_offset++] = GIF_SIG_EXTENSION;
- dst_buf[gif_ptr->cur_offset++] = GIF_BLOCK_CE;
- _gif_write_block_data(gif_ptr->cmt_data_ptr, gif_ptr->cmt_data_len, dst_buf,
- dst_len, gif_ptr->cur_offset);
- dst_buf[gif_ptr->cur_offset++] = 0;
- }
-#endif
-#ifdef GIF_SUPPORT_PLAIN_TEXT_EXTENSION
- if (FXSYS_memcmp(gif_ptr->header_ptr->version, "89a", 3) == 0 &&
- gif_ptr->pte_data_ptr) {
- dst_buf[gif_ptr->cur_offset++] = GIF_SIG_EXTENSION;
- dst_buf[gif_ptr->cur_offset++] = GIF_BLOCK_PTE;
- dst_buf[gif_ptr->cur_offset++] = gif_ptr->pte_ptr->block_size;
- _SetWord_LSBFirst(dst_buf + gif_ptr->cur_offset,
- gif_ptr->pte_ptr->grid_left);
- gif_ptr->cur_offset += 2;
- _SetWord_LSBFirst(dst_buf + gif_ptr->cur_offset,
- gif_ptr->pte_ptr->grid_top);
- gif_ptr->cur_offset += 2;
- _SetWord_LSBFirst(dst_buf + gif_ptr->cur_offset,
- gif_ptr->pte_ptr->grid_width);
- gif_ptr->cur_offset += 2;
- _SetWord_LSBFirst(dst_buf + gif_ptr->cur_offset,
- gif_ptr->pte_ptr->grid_height);
- gif_ptr->cur_offset += 2;
- _SetWord_LSBFirst(dst_buf + gif_ptr->cur_offset,
- gif_ptr->pte_ptr->char_width);
- gif_ptr->cur_offset += 2;
- _SetWord_LSBFirst(dst_buf + gif_ptr->cur_offset,
- gif_ptr->pte_ptr->char_height);
- gif_ptr->cur_offset += 2;
- _SetWord_LSBFirst(dst_buf + gif_ptr->cur_offset,
- gif_ptr->pte_ptr->fc_index);
- gif_ptr->cur_offset += 2;
- _SetWord_LSBFirst(dst_buf + gif_ptr->cur_offset,
- gif_ptr->pte_ptr->bc_index);
- gif_ptr->cur_offset += 2;
- _gif_write_block_data(gif_ptr->pte_data_ptr, gif_ptr->pte_data_len, dst_buf,
- dst_len, gif_ptr->cur_offset);
- gif_ptr->cur_offset += gif_ptr->pte_data_len;
- dst_buf[gif_ptr->cur_offset++] = 0;
- }
-#endif
-#ifdef GIF_SUPPORT_APPLICATION_EXTENSION
- if (FXSYS_memcmp(gif_ptr->header_ptr->version, "89a", 3) == 0 &&
- gif_ptr->app_data) {
- dst_buf[gif_ptr->cur_offset++] = GIF_SIG_EXTENSION;
- dst_buf[gif_ptr->cur_offset++] = GIF_BLOCK_AE;
- dst_buf[gif_ptr->cur_offset++] = 11;
- FXSYS_memcpy(&dst_buf[gif_ptr->cur_offset], gif_ptr->app_identify, 8);
- gif_ptr->cur_offset += 8;
- FXSYS_memcpy(&dst_buf[gif_ptr->cur_offset], gif_ptr->app_authentication, 8);
- gif_ptr->cur_offset += 3;
- FXSYS_memcpy(&dst_buf[gif_ptr->cur_offset], gif_ptr->app_data,
- gif_ptr->app_data_size);
- gif_ptr->cur_offset += gif_ptr->app_data_size;
- dst_buf[gif_ptr->cur_offset++] = 0;
- }
-#endif
- dst_buf[gif_ptr->cur_offset++] = GIF_SIG_TRAILER;
- return TRUE;
-}
-FX_BOOL _gif_encode(gif_compress_struct_p gif_ptr,
- uint8_t*& dst_buf,
- FX_DWORD& dst_len) {
- if (!_gif_write_header(gif_ptr, dst_buf, dst_len)) {
- return FALSE;
- }
- FX_DWORD cur_offset = gif_ptr->cur_offset;
- FX_BOOL res = TRUE;
- if (gif_ptr->frames) {
- gif_ptr->cur_offset--;
- }
- if (!_gif_write_data(gif_ptr, dst_buf, dst_len)) {
- gif_ptr->cur_offset = cur_offset;
- res = FALSE;
- }
- dst_len = gif_ptr->cur_offset;
- dst_buf[dst_len - 1] = GIF_SIG_TRAILER;
- if (res) {
- gif_ptr->frames++;
- }
- return res;
-}
+// Copyright 2014 PDFium Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. + +// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com + +#include "fx_gif.h" +void CGifLZWDecoder::Input(uint8_t* src_buf, FX_DWORD src_size) { + next_in = src_buf; + avail_in = src_size; +} +FX_DWORD CGifLZWDecoder::GetAvailInput() { + return avail_in; +} +void CGifLZWDecoder::InitTable(uint8_t code_len) { + code_size = code_len; + code_clear = 1 << code_size; + code_end = code_clear + 1; + bits_left = 0; + code_store = 0; + next_in = NULL; + avail_in = 0; + stack_size = 0; + code_first = 0; + ClearTable(); +} +void CGifLZWDecoder::ClearTable() { + code_size_cur = code_size + 1; + code_next = code_end + 1; + code_old = (FX_WORD)-1; + FXSYS_memset(code_table, 0, sizeof(tag_Table) * GIF_MAX_LZW_CODE); + FXSYS_memset(stack, 0, GIF_MAX_LZW_CODE); + for (FX_WORD i = 0; i < code_clear; i++) { + code_table[i].suffix = (uint8_t)i; + } +} +void CGifLZWDecoder::DecodeString(FX_WORD code) { + stack_size = 0; + while (TRUE) { + ASSERT(code <= code_next); + if (code < code_clear || code > code_next) { + break; + } + stack[GIF_MAX_LZW_CODE - 1 - stack_size++] = code_table[code].suffix; + code = code_table[code].prefix; + } + stack[GIF_MAX_LZW_CODE - 1 - stack_size++] = (uint8_t)code; + code_first = (uint8_t)code; +} +void CGifLZWDecoder::AddCode(FX_WORD prefix_code, uint8_t append_char) { + if (code_next == GIF_MAX_LZW_CODE) { + return; + } + code_table[code_next].prefix = prefix_code; + code_table[code_next].suffix = append_char; + if (++code_next < GIF_MAX_LZW_CODE) { + if (code_next >> code_size_cur) { + code_size_cur++; + } + } +} +int32_t CGifLZWDecoder::Decode(uint8_t* des_buf, FX_DWORD& des_size) { + if (des_size == 0) { + return 3; + } + FX_DWORD i = 0; + if (stack_size != 0) { + if (des_size < stack_size) { + FXSYS_memcpy(des_buf, &stack[GIF_MAX_LZW_CODE - stack_size], des_size); + stack_size -= (FX_WORD)des_size; + return 3; + } + FXSYS_memcpy(des_buf, &stack[GIF_MAX_LZW_CODE - stack_size], stack_size); + des_buf += stack_size; + i += stack_size; + stack_size = 0; + } + FX_WORD code = 0; + while (i <= des_size && (avail_in > 0 || bits_left >= code_size_cur)) { + if (code_size_cur > 12) { + if (err_msg_ptr) { + FXSYS_strncpy(err_msg_ptr, "Code Length Out Of Range", + GIF_MAX_ERROR_SIZE - 1); + } + return 0; + } + if (avail_in > 0) { + code_store |= (*next_in++) << bits_left; + avail_in--; + bits_left += 8; + } + while (bits_left >= code_size_cur) { + code = (FX_WORD)code_store & ((1 << code_size_cur) - 1); + code_store >>= code_size_cur; + bits_left -= code_size_cur; + if (code == code_clear) { + ClearTable(); + continue; + } else if (code == code_end) { + des_size = i; + return 1; + } else { + if (code_old != (FX_WORD)-1) { + if (code_next < GIF_MAX_LZW_CODE) { + if (code == code_next) { + AddCode(code_old, code_first); + DecodeString(code); + } else if (code > code_next) { + if (err_msg_ptr) { + FXSYS_strncpy(err_msg_ptr, "Decode Error, Out Of Range", + GIF_MAX_ERROR_SIZE - 1); + } + return 0; + } else { + DecodeString(code); + uint8_t append_char = stack[GIF_MAX_LZW_CODE - stack_size]; + AddCode(code_old, append_char); + } + } + } else { + DecodeString(code); + } + code_old = code; + if (i + stack_size > des_size) { + FXSYS_memcpy(des_buf, &stack[GIF_MAX_LZW_CODE - stack_size], + des_size - i); + stack_size -= (FX_WORD)(des_size - i); + return 3; + } + FXSYS_memcpy(des_buf, &stack[GIF_MAX_LZW_CODE - stack_size], + stack_size); + des_buf += stack_size; + i += stack_size; + stack_size = 0; + } + } + } + if (avail_in == 0) { + des_size = i; + return 2; + } + return 0; +} +static FX_BOOL _gif_grow_buf(uint8_t*& dst_buf, + FX_DWORD& dst_len, + FX_DWORD size) { + if (dst_len < size) { + FX_DWORD len_org = dst_len; + while (dst_buf && dst_len < size) { + dst_len <<= 1; + dst_buf = FX_Realloc(uint8_t, dst_buf, dst_len); + } + if (dst_buf == NULL) { + dst_len = size; + dst_buf = FX_Realloc(uint8_t, dst_buf, dst_len); + if (dst_buf == NULL) { + return FALSE; + } + } + FXSYS_memset(dst_buf + len_org, 0, dst_len - len_org); + return dst_buf != NULL; + } + return TRUE; +} +static inline void _gif_cut_index(uint8_t& val, + FX_DWORD index, + uint8_t index_bit, + uint8_t index_bit_use, + uint8_t bit_use) { + FX_DWORD cut = ((1 << (index_bit - index_bit_use)) - 1) << index_bit_use; + val |= ((index & cut) >> index_bit_use) << bit_use; +} +static inline uint8_t _gif_cut_buf(const uint8_t* buf, + FX_DWORD& offset, + uint8_t bit_cut, + uint8_t& bit_offset, + FX_DWORD& bit_num) { + if (bit_cut != 8) { + FX_WORD index = 0; + index |= ((1 << bit_cut) - 1) << (7 - bit_offset); + uint8_t ret = ((index & buf[offset]) >> (7 - bit_offset)); + bit_offset += bit_cut; + if (bit_offset >= 8) { + if (bit_offset > 8) { + ret |= ((index & (buf[offset + 1] << 8)) >> 8); + } + bit_offset -= 8; + offset++; + } + bit_num += bit_cut; + return ret; + } + bit_num += bit_cut; + return buf[offset++]; +} +CGifLZWEncoder::CGifLZWEncoder() { + FXSYS_memset(this, 0, sizeof(CGifLZWEncoder)); +} +CGifLZWEncoder::~CGifLZWEncoder() {} +void CGifLZWEncoder::ClearTable() { + index_bit_cur = code_size + 1; + index_num = code_end + 1; + table_cur = code_end + 1; + for (FX_WORD i = 0; i < GIF_MAX_LZW_CODE; i++) { + code_table[i].prefix = 0; + code_table[i].suffix = 0; + } +} +void CGifLZWEncoder::Start(uint8_t code_len, + const uint8_t* src_buf, + uint8_t*& dst_buf, + FX_DWORD& offset) { + code_size = code_len + 1; + src_bit_cut = code_size; + if (code_len == 0) { + src_bit_cut = 1; + code_size = 2; + } + code_clear = 1 << code_size; + code_end = code_clear + 1; + dst_buf[offset++] = code_size; + bit_offset = 0; + ClearTable(); + src_offset = 0; + src_bit_offset = 0; + src_bit_num = 0; + code_table[index_num].prefix = _gif_cut_buf(src_buf, src_offset, src_bit_cut, + src_bit_offset, src_bit_num); + code_table[index_num].suffix = _gif_cut_buf(src_buf, src_offset, src_bit_cut, + src_bit_offset, src_bit_num); +} +void CGifLZWEncoder::WriteBlock(uint8_t*& dst_buf, + FX_DWORD& dst_len, + FX_DWORD& offset) { + if (!_gif_grow_buf(dst_buf, dst_len, offset + GIF_DATA_BLOCK + 1)) { + longjmp(jmp, 1); + } + dst_buf[offset++] = index_buf_len; + FXSYS_memcpy(&dst_buf[offset], index_buf, index_buf_len); + offset += index_buf_len; + FXSYS_memset(index_buf, 0, GIF_DATA_BLOCK); + index_buf_len = 0; +} +void CGifLZWEncoder::EncodeString(FX_DWORD index, + uint8_t*& dst_buf, + FX_DWORD& dst_len, + FX_DWORD& offset) { + uint8_t index_bit_use; + index_bit_use = 0; + if (index_buf_len == GIF_DATA_BLOCK) { + WriteBlock(dst_buf, dst_len, offset); + } + _gif_cut_index(index_buf[index_buf_len], index, index_bit_cur, index_bit_use, + bit_offset); + if (index_bit_cur <= (8 - bit_offset)) { + bit_offset += index_bit_cur; + } else if (index_bit_cur <= (16 - bit_offset)) { + index_bit_use += (8 - bit_offset); + bit_offset = 0; + index_buf_len++; + if (index_buf_len == GIF_DATA_BLOCK) { + WriteBlock(dst_buf, dst_len, offset); + } + _gif_cut_index(index_buf[index_buf_len], index, index_bit_cur, + index_bit_use, bit_offset); + bit_offset = index_bit_cur - index_bit_use; + } else { + index_bit_use += (8 - bit_offset); + bit_offset = 0; + index_buf_len++; + if (index_buf_len == GIF_DATA_BLOCK) { + WriteBlock(dst_buf, dst_len, offset); + } + _gif_cut_index(index_buf[index_buf_len], index, index_bit_cur, + index_bit_use, bit_offset); + index_bit_use += 8; + bit_offset = 0; + index_buf_len++; + if (index_buf_len == GIF_DATA_BLOCK) { + WriteBlock(dst_buf, dst_len, offset); + } + _gif_cut_index(index_buf[index_buf_len], index, index_bit_cur, + index_bit_use, bit_offset); + bit_offset = index_bit_cur - index_bit_use; + } + if (bit_offset == 8) { + bit_offset = 0; + index_buf_len++; + if (index_buf_len == GIF_DATA_BLOCK) { + WriteBlock(dst_buf, dst_len, offset); + } + } + if (index == code_end) { + index_buf_len++; + WriteBlock(dst_buf, dst_len, offset); + } + if (index_num++ >> index_bit_cur) { + index_bit_cur++; + } +} +FX_BOOL CGifLZWEncoder::Encode(const uint8_t* src_buf, + FX_DWORD src_len, + uint8_t*& dst_buf, + FX_DWORD& dst_len, + FX_DWORD& offset) { + uint8_t suffix; + if (setjmp(jmp)) { + return FALSE; + } + while (src_bit_num < src_len) { + if (!LookUpInTable(src_buf, src_offset, src_bit_offset)) { + EncodeString(code_table[index_num].prefix, dst_buf, dst_len, offset); + if (index_num == GIF_MAX_LZW_CODE) { + suffix = code_table[index_num - 1].suffix; + EncodeString(code_clear, dst_buf, dst_len, offset); + ClearTable(); + code_table[index_num].prefix = suffix; + code_table[index_num].suffix = _gif_cut_buf( + src_buf, src_offset, src_bit_cut, src_bit_offset, src_bit_num); + } else { + code_table[index_num].prefix = code_table[index_num - 1].suffix; + code_table[index_num].suffix = _gif_cut_buf( + src_buf, src_offset, src_bit_cut, src_bit_offset, src_bit_num); + } + } + } + src_offset = 0; + src_bit_offset = 0; + src_bit_num = 0; + return TRUE; +} +FX_BOOL CGifLZWEncoder::LookUpInTable(const uint8_t* buf, + FX_DWORD& offset, + uint8_t& bit_offset) { + for (FX_WORD i = table_cur; i < index_num; i++) { + if (code_table[i].prefix == code_table[index_num].prefix && + code_table[i].suffix == code_table[index_num].suffix) { + code_table[index_num].prefix = i; + code_table[index_num].suffix = + _gif_cut_buf(buf, offset, src_bit_cut, bit_offset, src_bit_num); + table_cur = i; + return TRUE; + } + } + table_cur = code_end + 1; + return FALSE; +} +void CGifLZWEncoder::Finish(uint8_t*& dst_buf, + FX_DWORD& dst_len, + FX_DWORD& offset) { + EncodeString(code_table[index_num].prefix, dst_buf, dst_len, offset); + EncodeString(code_end, dst_buf, dst_len, offset); + bit_offset = 0; + ClearTable(); +} +gif_decompress_struct_p _gif_create_decompress() { + gif_decompress_struct_p gif_ptr = + (gif_decompress_struct*)FX_Alloc(uint8_t, sizeof(gif_decompress_struct)); + if (gif_ptr == NULL) { + return NULL; + } + FXSYS_memset(gif_ptr, 0, sizeof(gif_decompress_struct)); + gif_ptr->decode_status = GIF_D_STATUS_SIG; + gif_ptr->img_ptr_arr_ptr = new CFX_ArrayTemplate<GifImage*>; +#ifdef GIF_SUPPORT_COMMENT_EXTENSION + gif_ptr->cmt_data_ptr = new CFX_ByteString; +#endif +#ifdef GIF_SUPPORT_PLAIN_TEXT_EXTENSION + gif_ptr->pt_ptr_arr_ptr = new CFX_ArrayTemplate<GifPlainText*>; +#endif + return gif_ptr; +} +void _gif_destroy_decompress(gif_decompress_struct_pp gif_ptr_ptr) { + if (gif_ptr_ptr == NULL || *gif_ptr_ptr == NULL) { + return; + } + gif_decompress_struct_p gif_ptr = *gif_ptr_ptr; + *gif_ptr_ptr = NULL; + if (gif_ptr->global_pal_ptr != NULL) { + FX_Free(gif_ptr->global_pal_ptr); + } + if (gif_ptr->img_decoder_ptr != NULL) { + delete gif_ptr->img_decoder_ptr; + } + if (gif_ptr->img_ptr_arr_ptr != NULL) { + int32_t size_img_arr = gif_ptr->img_ptr_arr_ptr->GetSize(); + for (int32_t i = 0; i < size_img_arr; i++) { + GifImage* p = gif_ptr->img_ptr_arr_ptr->GetAt(i); + if (p->image_info_ptr != NULL) { + FX_Free(p->image_info_ptr); + } + if (p->image_gce_ptr != NULL) { + FX_Free(p->image_gce_ptr); + } + if (p->image_row_buf != NULL) { + FX_Free(p->image_row_buf); + } + if (p->local_pal_ptr != NULL && + p->local_pal_ptr != gif_ptr->global_pal_ptr) { + FX_Free(p->local_pal_ptr); + } + FX_Free(p); + } + gif_ptr->img_ptr_arr_ptr->RemoveAll(); + delete gif_ptr->img_ptr_arr_ptr; + } +#ifdef GIF_SUPPORT_APPLICATION_EXTENSION + if (gif_ptr->app_data != NULL) { + FX_Free(gif_ptr->app_data); + } +#endif +#ifdef GIF_SUPPORT_COMMENT_EXTENSION + if (gif_ptr->cmt_data_ptr != NULL) { + delete gif_ptr->cmt_data_ptr; + } +#endif +#ifdef GIF_SUPPORT_GRAPHIC_CONTROL_EXTENSION + if (gif_ptr->gce_ptr != NULL) { + FX_Free(gif_ptr->gce_ptr); + } +#endif +#ifdef GIF_SUPPORT_PLAIN_TEXT_EXTENSION + if (gif_ptr->pt_ptr_arr_ptr != NULL) { + int32_t size_pt_arr = gif_ptr->pt_ptr_arr_ptr->GetSize(); + for (int32_t i = 0; i < size_pt_arr; i++) { + GifPlainText* p = gif_ptr->pt_ptr_arr_ptr->GetAt(i); + if (p->gce_ptr != NULL) { + FX_Free(p->gce_ptr); + } + if (p->pte_ptr != NULL) { + FX_Free(p->pte_ptr); + } + if (p->string_ptr != NULL) { + delete p->string_ptr; + } + } + gif_ptr->pt_ptr_arr_ptr->RemoveAll(); + delete gif_ptr->pt_ptr_arr_ptr; + } +#endif + FX_Free(gif_ptr); +} +gif_compress_struct_p _gif_create_compress() { + gif_compress_struct_p gif_ptr = + (gif_compress_struct*)FX_Alloc(uint8_t, sizeof(gif_compress_struct)); + if (gif_ptr == NULL) { + return NULL; + } + FXSYS_memset(gif_ptr, 0, sizeof(gif_compress_struct)); + gif_ptr->img_encoder_ptr = new CGifLZWEncoder; + gif_ptr->header_ptr = (GifHeader*)FX_Alloc(uint8_t, sizeof(GifHeader)); + if (gif_ptr->header_ptr == NULL) { + delete (gif_ptr->img_encoder_ptr); + FX_Free(gif_ptr); + return NULL; + } + FXSYS_memcpy(gif_ptr->header_ptr->signature, GIF_SIGNATURE, 3); + FXSYS_memcpy(gif_ptr->header_ptr->version, "89a", 3); + gif_ptr->lsd_ptr = (GifLSD*)FX_Alloc(uint8_t, sizeof(GifLSD)); + if (gif_ptr->lsd_ptr == NULL) { + FX_Free(gif_ptr->header_ptr); + delete (gif_ptr->img_encoder_ptr); + FX_Free(gif_ptr); + return NULL; + } + FXSYS_memset(gif_ptr->lsd_ptr, 0, sizeof(GifLSD)); + gif_ptr->image_info_ptr = + (GifImageInfo*)FX_Alloc(uint8_t, sizeof(GifImageInfo)); + if (gif_ptr->image_info_ptr == NULL) { + FX_Free(gif_ptr->lsd_ptr); + FX_Free(gif_ptr->header_ptr); + delete (gif_ptr->img_encoder_ptr); + FX_Free(gif_ptr); + return NULL; + } + FXSYS_memset(gif_ptr->image_info_ptr, 0, sizeof(GifImageInfo)); +#ifdef GIF_SUPPORT_APPLICATION_EXTENSION + FXSYS_memcpy(gif_ptr->app_identify, "netscape", 8); + FXSYS_memcpy(gif_ptr->app_authentication, "2.0", 3); +#endif +#ifdef GIF_SUPPORT_GRAPHIC_CONTROL_EXTENSION + gif_ptr->gce_ptr = (GifGCE*)FX_Alloc(uint8_t, sizeof(GifGCE)); + if (gif_ptr->gce_ptr == NULL) { + FX_Free(gif_ptr->image_info_ptr); + FX_Free(gif_ptr->lsd_ptr); + FX_Free(gif_ptr->header_ptr); + delete (gif_ptr->img_encoder_ptr); + FX_Free(gif_ptr); + return NULL; + } +#endif +#ifdef GIF_SUPPORT_PLAIN_TEXT_EXTENSION + gif_ptr->pte_ptr = (GifPTE*)FX_Alloc(uint8_t, sizeof(GifPTE)); + if (gif_ptr->pte_ptr == NULL) { + FX_Free(gif_ptr->gce_ptr); + FX_Free(gif_ptr->image_info_ptr); + FX_Free(gif_ptr->lsd_ptr); + FX_Free(gif_ptr->header_ptr); + delete (gif_ptr->img_encoder_ptr); + FX_Free(gif_ptr); + return NULL; + } + FXSYS_memset(gif_ptr->pte_ptr, 0, sizeof(GifPTE)); + gif_ptr->pte_ptr->block_size = 12; +#endif + return gif_ptr; +} +void _gif_destroy_compress(gif_compress_struct_pp gif_ptr_ptr) { + if (gif_ptr_ptr == NULL || *gif_ptr_ptr == NULL) { + return; + } + gif_compress_struct_p gif_ptr = *gif_ptr_ptr; + *gif_ptr_ptr = NULL; + if (gif_ptr->header_ptr != NULL) { + FX_Free(gif_ptr->header_ptr); + } + if (gif_ptr->lsd_ptr != NULL) { + FX_Free(gif_ptr->lsd_ptr); + } + if (gif_ptr->global_pal != NULL) { + FX_Free(gif_ptr->global_pal); + } + if (gif_ptr->image_info_ptr != NULL) { + FX_Free(gif_ptr->image_info_ptr); + } + if (gif_ptr->local_pal != NULL) { + FX_Free(gif_ptr->local_pal); + } + if (gif_ptr->img_encoder_ptr != NULL) { + delete gif_ptr->img_encoder_ptr; + } +#ifdef GIF_SUPPORT_APPLICATION_EXTENSION + if (gif_ptr->app_data != NULL) { + FX_Free(gif_ptr->app_data); + } +#endif +#ifdef GIF_SUPPORT_GRAPHIC_CONTROL_EXTENSION + if (gif_ptr->gce_ptr != NULL) { + FX_Free(gif_ptr->gce_ptr); + } +#endif +#ifdef GIF_SUPPORT_COMMENT_EXTENSION + if (gif_ptr->cmt_data_ptr != NULL) { + FX_Free(gif_ptr->cmt_data_ptr); + } +#endif +#ifdef GIF_SUPPORT_PLAIN_TEXT_EXTENSION + if (gif_ptr->pte_ptr != NULL) { + FX_Free(gif_ptr->pte_ptr); + } +#endif + FX_Free(gif_ptr); +} +void _gif_error(gif_decompress_struct_p gif_ptr, const FX_CHAR* err_msg) { + if (gif_ptr != NULL && gif_ptr->_gif_error_fn != NULL) { + gif_ptr->_gif_error_fn(gif_ptr, err_msg); + } +} +void _gif_warn(gif_decompress_struct_p gif_ptr, const FX_CHAR* err_msg) {} +int32_t _gif_read_header(gif_decompress_struct_p gif_ptr) { + if (gif_ptr == NULL) { + return 0; + } + FX_DWORD skip_size_org = gif_ptr->skip_size; + ASSERT(sizeof(GifHeader) == 6); + GifHeader* gif_header_ptr = NULL; + if (_gif_read_data(gif_ptr, (uint8_t**)&gif_header_ptr, 6) == NULL) { + return 2; + } + if (FXSYS_strncmp(gif_header_ptr->signature, GIF_SIGNATURE, 3) != 0 || + gif_header_ptr->version[0] != '8' || gif_header_ptr->version[2] != 'a') { + _gif_error(gif_ptr, "Not A Gif Image"); + return 0; + } + ASSERT(sizeof(GifLSD) == 7); + GifLSD* gif_lsd_ptr = NULL; + if (_gif_read_data(gif_ptr, (uint8_t**)&gif_lsd_ptr, 7) == NULL) { + gif_ptr->skip_size = skip_size_org; + return 2; + } + if (((GifGF*)&gif_lsd_ptr->global_flag)->global_pal) { + gif_ptr->global_pal_num = 2 + << ((GifGF*)&gif_lsd_ptr->global_flag)->pal_bits; + ASSERT(sizeof(GifPalette) == 3); + int32_t global_pal_size = gif_ptr->global_pal_num * 3; + uint8_t* global_pal_ptr = NULL; + if (_gif_read_data(gif_ptr, &global_pal_ptr, global_pal_size) == NULL) { + gif_ptr->skip_size = skip_size_org; + return 2; + } + gif_ptr->global_sort_flag = ((GifGF*)&gif_lsd_ptr->global_flag)->sort_flag; + gif_ptr->global_color_resolution = + ((GifGF*)&gif_lsd_ptr->global_flag)->color_resolution; + if (gif_ptr->global_pal_ptr != NULL) { + FX_Free(gif_ptr->global_pal_ptr); + } + gif_ptr->global_pal_ptr = NULL; + gif_ptr->global_pal_ptr = (GifPalette*)FX_Alloc(uint8_t, global_pal_size); + GIF_PTR_NOT_NULL(gif_ptr->global_pal_ptr, gif_ptr); + FXSYS_memcpy(gif_ptr->global_pal_ptr, global_pal_ptr, global_pal_size); + } + gif_ptr->width = (int)_GetWord_LSBFirst((uint8_t*)&gif_lsd_ptr->width); + gif_ptr->height = (int)_GetWord_LSBFirst((uint8_t*)&gif_lsd_ptr->height); + gif_ptr->bc_index = gif_lsd_ptr->bc_index; + gif_ptr->pixel_aspect = gif_lsd_ptr->pixel_aspect; + return 1; +} +int32_t _gif_get_frame(gif_decompress_struct_p gif_ptr) { + if (gif_ptr == NULL) { + return 0; + } + int32_t ret = 1; + while (TRUE) { + switch (gif_ptr->decode_status) { + case GIF_D_STATUS_TAIL: + return 1; + case GIF_D_STATUS_SIG: { + uint8_t* sig_ptr = NULL; + if (_gif_read_data(gif_ptr, &sig_ptr, 1) == NULL) { + return 2; + } + switch (*sig_ptr) { + case GIF_SIG_EXTENSION: + _gif_save_decoding_status(gif_ptr, GIF_D_STATUS_EXT); + continue; + case GIF_SIG_IMAGE: + _gif_save_decoding_status(gif_ptr, GIF_D_STATUS_IMG_INFO); + continue; + case GIF_SIG_TRAILER: + _gif_save_decoding_status(gif_ptr, GIF_D_STATUS_TAIL); + return 1; + default: + if (gif_ptr->avail_in) { + _gif_warn(gif_ptr, "The Gif File has non_standard Tag!"); + _gif_save_decoding_status(gif_ptr, GIF_D_STATUS_SIG); + continue; + } + _gif_warn(gif_ptr, "The Gif File Doesn't have Trailer Tag!"); + return 1; + } + } + case GIF_D_STATUS_EXT: { + uint8_t* ext_ptr = NULL; + if (_gif_read_data(gif_ptr, &ext_ptr, 1) == NULL) { + return 2; + } + switch (*ext_ptr) { +#ifdef GIF_SUPPORT_APPLICATION_EXTENSION + case GIF_BLOCK_AE: + _gif_save_decoding_status(gif_ptr, GIF_D_STATUS_EXT_AE); + continue; +#endif +#ifdef GIF_SUPPORT_COMMENT_EXTENSION + case GIF_BLOCK_CE: + _gif_save_decoding_status(gif_ptr, GIF_D_STATUS_EXT_CE); + continue; +#endif +#ifdef GIF_SUPPORT_GRAPHIC_CONTROL_EXTENSION + case GIF_BLOCK_GCE: + _gif_save_decoding_status(gif_ptr, GIF_D_STATUS_EXT_GCE); + continue; +#endif +#ifdef GIF_SUPPORT_PLAIN_TEXT_EXTENSION + case GIF_BLOCK_PTE: + _gif_save_decoding_status(gif_ptr, GIF_D_STATUS_EXT_PTE); + continue; +#endif + default: { + int32_t status = GIF_D_STATUS_EXT_UNE; +#ifndef GIF_SUPPORT_PLAIN_TEXT_EXTENSION + if (*ext_ptr == GIF_BLOCK_PTE) { + status = GIF_D_STATUS_EXT_PTE; + } +#endif + _gif_save_decoding_status(gif_ptr, status); + continue; + } + } + } + case GIF_D_STATUS_IMG_INFO: { + ret = _gif_decode_image_info(gif_ptr); + if (ret != 1) { + return ret; + } + continue; + } + case GIF_D_STATUS_IMG_DATA: { + uint8_t* data_size_ptr = NULL; + uint8_t* data_ptr = NULL; + FX_DWORD skip_size_org = gif_ptr->skip_size; + if (_gif_read_data(gif_ptr, &data_size_ptr, 1) == NULL) { + return 2; + } + while (*data_size_ptr != GIF_BLOCK_TERMINAL) { + if (_gif_read_data(gif_ptr, &data_ptr, *data_size_ptr) == NULL) { + gif_ptr->skip_size = skip_size_org; + return 2; + } + _gif_save_decoding_status(gif_ptr, GIF_D_STATUS_IMG_DATA); + skip_size_org = gif_ptr->skip_size; + if (_gif_read_data(gif_ptr, &data_size_ptr, 1) == NULL) { + return 2; + } + } + _gif_save_decoding_status(gif_ptr, GIF_D_STATUS_SIG); + continue; + } + default: { + ret = _gif_decode_extension(gif_ptr); + if (ret != 1) { + return ret; + } + continue; + } + } + } + return 1; +} +void _gif_takeover_gce_ptr(gif_decompress_struct_p gif_ptr, + GifGCE** gce_ptr_ptr) { + *gce_ptr_ptr = NULL; +#ifdef GIF_SUPPORT_GRAPHIC_CONTROL_EXTENSION + if (gif_ptr->gce_ptr != NULL && gce_ptr_ptr != NULL) { + *gce_ptr_ptr = gif_ptr->gce_ptr; + gif_ptr->gce_ptr = NULL; + } +#endif +} +int32_t _gif_decode_extension(gif_decompress_struct_p gif_ptr) { + uint8_t* data_size_ptr = NULL; + uint8_t* data_ptr = NULL; + FX_DWORD skip_size_org = gif_ptr->skip_size; + switch (gif_ptr->decode_status) { +#ifdef GIF_SUPPORT_APPLICATION_EXTENSION + case GIF_D_STATUS_EXT_AE: { + ASSERT(sizeof(GifAE) == 12); + GifAE* gif_ae_ptr = NULL; + if (_gif_read_data(gif_ptr, (uint8_t**)&gif_ae_ptr, 12) == NULL) { + return 2; + } + CFX_ByteString gif_ae_data_str; + if (_gif_read_data(gif_ptr, &data_size_ptr, 1) == NULL) { + gif_ptr->skip_size = skip_size_org; + return 2; + } + while (*data_size_ptr != GIF_BLOCK_TERMINAL) { + uint8_t data_size = *data_size_ptr; + if (_gif_read_data(gif_ptr, &data_ptr, *data_size_ptr) == NULL || + _gif_read_data(gif_ptr, &data_size_ptr, 1) == NULL) { + gif_ptr->skip_size = skip_size_org; + return 2; + } + gif_ae_data_str += CFX_ByteString((const uint8_t*)data_ptr, data_size); + } + FXSYS_memcpy(gif_ptr->app_identify, gif_ae_ptr->app_identify, 8); + FXSYS_memcpy(gif_ptr->app_authentication, gif_ae_ptr->app_authentication, + 3); + gif_ptr->app_data_size = gif_ae_data_str.GetLength(); + if (gif_ptr->app_data != NULL) { + FX_Free(gif_ptr->app_data); + gif_ptr->app_data = NULL; + } + gif_ptr->app_data = FX_Alloc(uint8_t, gif_ptr->app_data_size); + GIF_PTR_NOT_NULL(gif_ptr->app_data, gif_ptr); + FXSYS_memcpy(gif_ptr->app_data, const uint8_t*(gif_ae_data_str), + gif_ptr->app_data_size); + } break; +#endif +#ifdef GIF_SUPPORT_COMMENT_EXTENSION + case GIF_D_STATUS_EXT_CE: { + if (_gif_read_data(gif_ptr, &data_size_ptr, 1) == NULL) { + gif_ptr->skip_size = skip_size_org; + return 2; + } + gif_ptr->cmt_data_ptr->Empty(); + while (*data_size_ptr != GIF_BLOCK_TERMINAL) { + uint8_t data_size = *data_size_ptr; + if (_gif_read_data(gif_ptr, &data_ptr, *data_size_ptr) == NULL || + _gif_read_data(gif_ptr, &data_size_ptr, 1) == NULL) { + gif_ptr->skip_size = skip_size_org; + return 2; + } + *(gif_ptr->cmt_data_ptr) += + CFX_ByteString((const FX_CHAR*)data_ptr, data_size); + } + } break; +#endif +#ifdef GIF_SUPPORT_PLAIN_TEXT_EXTENSION + case GIF_D_STATUS_EXT_PTE: { + ASSERT(sizeof(GifPTE) == 13); + GifPTE* gif_pte_ptr = NULL; + if (_gif_read_data(gif_ptr, (uint8_t**)&gif_pte_ptr, 13) == NULL) { + return 2; + } + GifPlainText* gif_pt_ptr = FX_Alloc(GifPlainText, 1); + GIF_PTR_NOT_NULL(gif_pt_ptr, gif_ptr); + FXSYS_memset(gif_pt_ptr, 0, sizeof(GifPlainText)); + _gif_takeover_gce_ptr(gif_ptr, &gif_pt_ptr->gce_ptr); + gif_pt_ptr->pte_ptr = (GifPTE*)FX_Alloc(uint8_t, sizeof(GifPTE)); + GIF_PTR_NOT_NULL(gif_pt_ptr->pte_ptr, gif_ptr); + gif_pt_ptr->string_ptr = new CFX_ByteString; + GIF_PTR_NOT_NULL(gif_pt_ptr->string_ptr, gif_ptr); + gif_pt_ptr->pte_ptr->block_size = gif_pte_ptr->block_size; + gif_pt_ptr->pte_ptr->grid_left = + _GetWord_LSBFirst((uint8_t*)&gif_pte_ptr->grid_left); + gif_pt_ptr->pte_ptr->grid_top = + _GetWord_LSBFirst((uint8_t*)&gif_pte_ptr->grid_top); + gif_pt_ptr->pte_ptr->grid_width = + _GetWord_LSBFirst((uint8_t*)&gif_pte_ptr->grid_width); + gif_pt_ptr->pte_ptr->grid_height = + _GetWord_LSBFirst((uint8_t*)&gif_pte_ptr->grid_height); + gif_pt_ptr->pte_ptr->char_width = gif_pte_ptr->char_width; + gif_pt_ptr->pte_ptr->char_height = gif_pte_ptr->char_height; + gif_pt_ptr->pte_ptr->fc_index = gif_pte_ptr->fc_index; + gif_pt_ptr->pte_ptr->bc_index = gif_pte_ptr->bc_index; + if (_gif_read_data(gif_ptr, &data_size_ptr, 1) == NULL) { + gif_ptr->skip_size = skip_size_org; + if (gif_pt_ptr != NULL) { + if (gif_pt_ptr->gce_ptr != NULL) { + FX_Free(gif_pt_ptr->gce_ptr); + } + if (gif_pt_ptr->pte_ptr != NULL) { + FX_Free(gif_pt_ptr->pte_ptr); + } + if (gif_pt_ptr->string_ptr != NULL) { + delete gif_pt_ptr->string_ptr; + } + FX_Free(gif_pt_ptr); + } + return 2; + } + while (*data_size_ptr != GIF_BLOCK_TERMINAL) { + uint8_t data_size = *data_size_ptr; + if (_gif_read_data(gif_ptr, &data_ptr, *data_size_ptr) == NULL || + _gif_read_data(gif_ptr, &data_size_ptr, 1) == NULL) { + gif_ptr->skip_size = skip_size_org; + if (gif_pt_ptr != NULL) { + if (gif_pt_ptr->gce_ptr != NULL) { + FX_Free(gif_pt_ptr->gce_ptr); + } + if (gif_pt_ptr->pte_ptr != NULL) { + FX_Free(gif_pt_ptr->pte_ptr); + } + if (gif_pt_ptr->string_ptr != NULL) { + delete gif_pt_ptr->string_ptr; + } + FX_Free(gif_pt_ptr); + } + return 2; + } + *(gif_pt_ptr->string_ptr) += + CFX_ByteString((const FX_CHAR*)data_ptr, data_size); + } + gif_ptr->pt_ptr_arr_ptr->Add(gif_pt_ptr); + } break; +#endif +#ifdef GIF_SUPPORT_GRAPHIC_CONTROL_EXTENSION + case GIF_D_STATUS_EXT_GCE: { + ASSERT(sizeof(GifGCE) == 5); + GifGCE* gif_gce_ptr = NULL; + if (_gif_read_data(gif_ptr, (uint8_t**)&gif_gce_ptr, 6) == NULL) { + return 2; + } + if (gif_ptr->gce_ptr == NULL) { + gif_ptr->gce_ptr = (GifGCE*)FX_Alloc(uint8_t, sizeof(GifGCE)); + GIF_PTR_NOT_NULL(gif_ptr->gce_ptr, gif_ptr); + } + gif_ptr->gce_ptr->block_size = gif_gce_ptr->block_size; + gif_ptr->gce_ptr->gce_flag = gif_gce_ptr->gce_flag; + gif_ptr->gce_ptr->delay_time = + _GetWord_LSBFirst((uint8_t*)&gif_gce_ptr->delay_time); + gif_ptr->gce_ptr->trans_index = gif_gce_ptr->trans_index; + } break; +#endif + default: { +#ifndef GIF_SUPPORT_PLAIN_TEXT_EXTENSION + if (gif_ptr->decode_status == GIF_D_STATUS_EXT_PTE) { +#ifdef GIF_SUPPORT_GRAPHIC_CONTROL_EXTENSION + if (gif_ptr->gce_ptr != NULL) { + FX_Free(gif_ptr->gce_ptr); + gif_ptr->gce_ptr = NULL; + } +#endif + } +#endif + if (_gif_read_data(gif_ptr, &data_size_ptr, 1) == NULL) { + return 2; + } + while (*data_size_ptr != GIF_BLOCK_TERMINAL) { + if (_gif_read_data(gif_ptr, &data_ptr, *data_size_ptr) == NULL || + _gif_read_data(gif_ptr, &data_size_ptr, 1) == NULL) { + gif_ptr->skip_size = skip_size_org; + return 2; + } + } + } + } + _gif_save_decoding_status(gif_ptr, GIF_D_STATUS_SIG); + return 1; +} +int32_t _gif_decode_image_info(gif_decompress_struct_p gif_ptr) { + if (gif_ptr->width == 0 || gif_ptr->height == 0) { + _gif_error(gif_ptr, "No Image Header Info"); + return 0; + } + FX_DWORD skip_size_org = gif_ptr->skip_size; + ASSERT(sizeof(GifImageInfo) == 9); + GifImageInfo* gif_img_info_ptr = NULL; + if (_gif_read_data(gif_ptr, (uint8_t**)&gif_img_info_ptr, 9) == NULL) { + return 2; + } + GifImage* gif_image_ptr = (GifImage*)FX_Alloc(uint8_t, sizeof(GifImage)); + GIF_PTR_NOT_NULL(gif_image_ptr, gif_ptr); + FXSYS_memset(gif_image_ptr, 0, sizeof(GifImage)); + gif_image_ptr->image_info_ptr = + (GifImageInfo*)FX_Alloc(uint8_t, sizeof(GifImageInfo)); + GIF_PTR_NOT_NULL(gif_image_ptr->image_info_ptr, gif_ptr); + gif_image_ptr->image_info_ptr->left = + _GetWord_LSBFirst((uint8_t*)&gif_img_info_ptr->left); + gif_image_ptr->image_info_ptr->top = + _GetWord_LSBFirst((uint8_t*)&gif_img_info_ptr->top); + gif_image_ptr->image_info_ptr->width = + _GetWord_LSBFirst((uint8_t*)&gif_img_info_ptr->width); + gif_image_ptr->image_info_ptr->height = + _GetWord_LSBFirst((uint8_t*)&gif_img_info_ptr->height); + gif_image_ptr->image_info_ptr->local_flag = gif_img_info_ptr->local_flag; + if (gif_image_ptr->image_info_ptr->left + + gif_image_ptr->image_info_ptr->width > + gif_ptr->width || + gif_image_ptr->image_info_ptr->top + + gif_image_ptr->image_info_ptr->height > + gif_ptr->height) { + if (gif_image_ptr->image_info_ptr != NULL) { + FX_Free(gif_image_ptr->image_info_ptr); + } + if (gif_image_ptr->image_row_buf != NULL) { + FX_Free(gif_image_ptr->image_row_buf); + } + FX_Free(gif_image_ptr); + _gif_error(gif_ptr, "Image Data Out Of LSD, The File May Be Corrupt"); + return 0; + } + GifLF* gif_img_info_lf_ptr = (GifLF*)&gif_img_info_ptr->local_flag; + if (gif_img_info_lf_ptr->local_pal) { + ASSERT(sizeof(GifPalette) == 3); + int32_t loc_pal_size = (2 << gif_img_info_lf_ptr->pal_bits) * 3; + uint8_t* loc_pal_ptr = NULL; + if (_gif_read_data(gif_ptr, &loc_pal_ptr, loc_pal_size) == NULL) { + gif_ptr->skip_size = skip_size_org; + if (gif_image_ptr->image_info_ptr != NULL) { + FX_Free(gif_image_ptr->image_info_ptr); + } + if (gif_image_ptr->image_row_buf != NULL) { + FX_Free(gif_image_ptr->image_row_buf); + } + FX_Free(gif_image_ptr); + return 2; + } + gif_image_ptr->local_pal_ptr = + (GifPalette*)gif_ptr->_gif_ask_buf_for_pal_fn(gif_ptr, loc_pal_size); + if (gif_image_ptr->local_pal_ptr != NULL) { + FXSYS_memcpy((uint8_t*)gif_image_ptr->local_pal_ptr, loc_pal_ptr, + loc_pal_size); + } + } + uint8_t* code_size_ptr = NULL; + if (_gif_read_data(gif_ptr, &code_size_ptr, 1) == NULL) { + gif_ptr->skip_size = skip_size_org; + if (gif_image_ptr->image_info_ptr != NULL) { + FX_Free(gif_image_ptr->image_info_ptr); + } + if (gif_image_ptr->local_pal_ptr != NULL) { + FX_Free(gif_image_ptr->local_pal_ptr); + } + if (gif_image_ptr->image_row_buf != NULL) { + FX_Free(gif_image_ptr->image_row_buf); + } + FX_Free(gif_image_ptr); + return 2; + } + gif_image_ptr->image_code_size = *code_size_ptr; + gif_ptr->_gif_record_current_position_fn(gif_ptr, + &gif_image_ptr->image_data_pos); + gif_image_ptr->image_data_pos += gif_ptr->skip_size; + _gif_takeover_gce_ptr(gif_ptr, &gif_image_ptr->image_gce_ptr); + gif_ptr->img_ptr_arr_ptr->Add(gif_image_ptr); + _gif_save_decoding_status(gif_ptr, GIF_D_STATUS_IMG_DATA); + return 1; +} +int32_t _gif_load_frame(gif_decompress_struct_p gif_ptr, int32_t frame_num) { + if (gif_ptr == NULL || frame_num < 0 || + frame_num >= gif_ptr->img_ptr_arr_ptr->GetSize()) { + return 0; + } + uint8_t* data_size_ptr = NULL; + uint8_t* data_ptr = NULL; + FX_DWORD skip_size_org = gif_ptr->skip_size; + GifImage* gif_image_ptr = gif_ptr->img_ptr_arr_ptr->GetAt(frame_num); + FX_DWORD gif_img_row_bytes = gif_image_ptr->image_info_ptr->width; + if (gif_ptr->decode_status == GIF_D_STATUS_TAIL) { + if (gif_image_ptr->image_row_buf) { + FX_Free(gif_image_ptr->image_row_buf); + gif_image_ptr->image_row_buf = NULL; + } + gif_image_ptr->image_row_buf = FX_Alloc(uint8_t, gif_img_row_bytes); + GIF_PTR_NOT_NULL(gif_image_ptr->image_row_buf, gif_ptr); + GifGCE* gif_img_gce_ptr = gif_image_ptr->image_gce_ptr; + int32_t loc_pal_num = + ((GifLF*)&gif_image_ptr->image_info_ptr->local_flag)->local_pal + ? (2 << ((GifLF*)&gif_image_ptr->image_info_ptr->local_flag) + ->pal_bits) + : 0; + gif_ptr->avail_in = 0; + if (gif_img_gce_ptr == NULL) { + FX_BOOL bRes = gif_ptr->_gif_get_record_position_fn( + gif_ptr, gif_image_ptr->image_data_pos, + gif_image_ptr->image_info_ptr->left, + gif_image_ptr->image_info_ptr->top, + gif_image_ptr->image_info_ptr->width, + gif_image_ptr->image_info_ptr->height, loc_pal_num, + gif_image_ptr->local_pal_ptr, 0, 0, -1, 0, + (FX_BOOL)((GifLF*)&gif_image_ptr->image_info_ptr->local_flag) + ->interlace); + if (!bRes) { + FX_Free(gif_image_ptr->image_row_buf); + gif_image_ptr->image_row_buf = NULL; + _gif_error(gif_ptr, "Error Read Record Position Data"); + return 0; + } + } else { + FX_BOOL bRes = gif_ptr->_gif_get_record_position_fn( + gif_ptr, gif_image_ptr->image_data_pos, + gif_image_ptr->image_info_ptr->left, + gif_image_ptr->image_info_ptr->top, + gif_image_ptr->image_info_ptr->width, + gif_image_ptr->image_info_ptr->height, loc_pal_num, + gif_image_ptr->local_pal_ptr, + (int32_t)gif_image_ptr->image_gce_ptr->delay_time, + (FX_BOOL)((GifCEF*)&gif_image_ptr->image_gce_ptr->gce_flag) + ->user_input, + ((GifCEF*)&gif_image_ptr->image_gce_ptr->gce_flag)->transparency + ? (int32_t)gif_image_ptr->image_gce_ptr->trans_index + : -1, + (int32_t)((GifCEF*)&gif_image_ptr->image_gce_ptr->gce_flag) + ->disposal_method, + (FX_BOOL)((GifLF*)&gif_image_ptr->image_info_ptr->local_flag) + ->interlace); + if (!bRes) { + FX_Free(gif_image_ptr->image_row_buf); + gif_image_ptr->image_row_buf = NULL; + _gif_error(gif_ptr, "Error Read Record Position Data"); + return 0; + } + } + if (gif_ptr->img_decoder_ptr == NULL) { + gif_ptr->img_decoder_ptr = new CGifLZWDecoder(gif_ptr->err_ptr); + GIF_PTR_NOT_NULL(gif_ptr->img_decoder_ptr, gif_ptr); + } + gif_ptr->img_decoder_ptr->InitTable(gif_image_ptr->image_code_size); + gif_ptr->img_row_offset = 0; + gif_ptr->img_row_avail_size = 0; + gif_ptr->img_pass_num = 0; + gif_image_ptr->image_row_num = 0; + _gif_save_decoding_status(gif_ptr, GIF_D_STATUS_IMG_DATA); + } + CGifLZWDecoder* img_decoder_ptr = gif_ptr->img_decoder_ptr; + if (gif_ptr->decode_status == GIF_D_STATUS_IMG_DATA) { + if (_gif_read_data(gif_ptr, &data_size_ptr, 1) == NULL) { + return 2; + } + if (*data_size_ptr != GIF_BLOCK_TERMINAL) { + if (_gif_read_data(gif_ptr, &data_ptr, *data_size_ptr) == NULL) { + gif_ptr->skip_size = skip_size_org; + return 2; + } + img_decoder_ptr->Input(data_ptr, *data_size_ptr); + _gif_save_decoding_status(gif_ptr, GIF_D_STATUS_IMG_DATA); + gif_ptr->img_row_offset += gif_ptr->img_row_avail_size; + gif_ptr->img_row_avail_size = gif_img_row_bytes - gif_ptr->img_row_offset; + int32_t ret = img_decoder_ptr->Decode( + gif_image_ptr->image_row_buf + gif_ptr->img_row_offset, + gif_ptr->img_row_avail_size); + if (ret == 0) { + FX_Free(gif_image_ptr->image_row_buf); + gif_image_ptr->image_row_buf = NULL; + _gif_save_decoding_status(gif_ptr, GIF_D_STATUS_TAIL); + _gif_error(gif_ptr, "Decode Image Data Error"); + return 0; + } + while (ret != 0) { + if (ret == 1) { + gif_ptr->_gif_get_row_fn(gif_ptr, gif_image_ptr->image_row_num, + gif_image_ptr->image_row_buf); + FX_Free(gif_image_ptr->image_row_buf); + gif_image_ptr->image_row_buf = NULL; + _gif_save_decoding_status(gif_ptr, GIF_D_STATUS_TAIL); + return 1; + } + if (ret == 2) { + ASSERT(img_decoder_ptr->GetAvailInput() == 0); + skip_size_org = gif_ptr->skip_size; + if (_gif_read_data(gif_ptr, &data_size_ptr, 1) == NULL) { + return 2; + } + if (*data_size_ptr != GIF_BLOCK_TERMINAL) { + if (_gif_read_data(gif_ptr, &data_ptr, *data_size_ptr) == NULL) { + gif_ptr->skip_size = skip_size_org; + return 2; + } + img_decoder_ptr->Input(data_ptr, *data_size_ptr); + _gif_save_decoding_status(gif_ptr, GIF_D_STATUS_IMG_DATA); + gif_ptr->img_row_offset += gif_ptr->img_row_avail_size; + gif_ptr->img_row_avail_size = + gif_img_row_bytes - gif_ptr->img_row_offset; + ret = img_decoder_ptr->Decode( + gif_image_ptr->image_row_buf + gif_ptr->img_row_offset, + gif_ptr->img_row_avail_size); + } + } + if (ret == 3) { + if (((GifLF*)&gif_image_ptr->image_info_ptr->local_flag)->interlace) { + gif_ptr->_gif_get_row_fn(gif_ptr, gif_image_ptr->image_row_num, + gif_image_ptr->image_row_buf); + gif_image_ptr->image_row_num += + s_gif_interlace_step[gif_ptr->img_pass_num]; + if (gif_image_ptr->image_row_num >= + (int32_t)gif_image_ptr->image_info_ptr->height) { + gif_ptr->img_pass_num++; + gif_image_ptr->image_row_num = + s_gif_interlace_step[gif_ptr->img_pass_num] / 2; + } + } else { + gif_ptr->_gif_get_row_fn(gif_ptr, gif_image_ptr->image_row_num++, + gif_image_ptr->image_row_buf); + } + gif_ptr->img_row_offset = 0; + gif_ptr->img_row_avail_size = gif_img_row_bytes; + ret = img_decoder_ptr->Decode( + gif_image_ptr->image_row_buf + gif_ptr->img_row_offset, + gif_ptr->img_row_avail_size); + } + if (ret == 0) { + FX_Free(gif_image_ptr->image_row_buf); + gif_image_ptr->image_row_buf = NULL; + _gif_save_decoding_status(gif_ptr, GIF_D_STATUS_TAIL); + _gif_error(gif_ptr, "Decode Image Data Error"); + return 0; + } + } + } + _gif_save_decoding_status(gif_ptr, GIF_D_STATUS_TAIL); + } + _gif_error(gif_ptr, "Decode Image Data Error"); + return 0; +} +void _gif_save_decoding_status(gif_decompress_struct_p gif_ptr, + int32_t status) { + gif_ptr->decode_status = status; + gif_ptr->next_in += gif_ptr->skip_size; + gif_ptr->avail_in -= gif_ptr->skip_size; + gif_ptr->skip_size = 0; +} +uint8_t* _gif_read_data(gif_decompress_struct_p gif_ptr, + uint8_t** des_buf_pp, + FX_DWORD data_size) { + if (gif_ptr == NULL || gif_ptr->avail_in < gif_ptr->skip_size + data_size) { + return NULL; + } + *des_buf_pp = gif_ptr->next_in + gif_ptr->skip_size; + gif_ptr->skip_size += data_size; + return *des_buf_pp; +} +void _gif_input_buffer(gif_decompress_struct_p gif_ptr, + uint8_t* src_buf, + FX_DWORD src_size) { + gif_ptr->next_in = src_buf; + gif_ptr->avail_in = src_size; + gif_ptr->skip_size = 0; +} +FX_DWORD _gif_get_avail_input(gif_decompress_struct_p gif_ptr, + uint8_t** avial_buf_ptr) { + if (avial_buf_ptr != NULL) { + *avial_buf_ptr = NULL; + if (gif_ptr->avail_in > 0) { + *avial_buf_ptr = gif_ptr->next_in; + } + } + return gif_ptr->avail_in; +} +int32_t _gif_get_frame_num(gif_decompress_struct_p gif_ptr) { + return gif_ptr->img_ptr_arr_ptr->GetSize(); +} +static FX_BOOL _gif_write_header(gif_compress_struct_p gif_ptr, + uint8_t*& dst_buf, + FX_DWORD& dst_len) { + if (gif_ptr->cur_offset) { + return TRUE; + } + dst_len = sizeof(GifHeader) + sizeof(GifLSD) + sizeof(GifGF); + dst_buf = FX_TryAlloc(uint8_t, dst_len); + if (dst_buf == NULL) { + return FALSE; + } + FXSYS_memset(dst_buf, 0, dst_len); + FXSYS_memcpy(dst_buf, gif_ptr->header_ptr, sizeof(GifHeader)); + gif_ptr->cur_offset += sizeof(GifHeader); + _SetWord_LSBFirst(dst_buf + gif_ptr->cur_offset, gif_ptr->lsd_ptr->width); + gif_ptr->cur_offset += 2; + _SetWord_LSBFirst(dst_buf + gif_ptr->cur_offset, gif_ptr->lsd_ptr->height); + gif_ptr->cur_offset += 2; + dst_buf[gif_ptr->cur_offset++] = gif_ptr->lsd_ptr->global_flag; + dst_buf[gif_ptr->cur_offset++] = gif_ptr->lsd_ptr->bc_index; + dst_buf[gif_ptr->cur_offset++] = gif_ptr->lsd_ptr->pixel_aspect; + if (gif_ptr->global_pal) { + FX_WORD size = sizeof(GifPalette) * gif_ptr->gpal_num; + if (!_gif_grow_buf(dst_buf, dst_len, gif_ptr->cur_offset + size)) { + return FALSE; + } + FXSYS_memcpy(&dst_buf[gif_ptr->cur_offset], gif_ptr->global_pal, size); + gif_ptr->cur_offset += size; + } + return TRUE; +} +void interlace_buf(const uint8_t* buf, FX_DWORD pitch, FX_DWORD height) { + CFX_ArrayTemplate<uint8_t*> pass[4]; + int i, j; + FX_DWORD row; + row = 0; + uint8_t* temp; + while (row < height) { + if (row % 8 == 0) { + j = 0; + } else if (row % 4 == 0) { + j = 1; + } else if (row % 2 == 0) { + j = 2; + } else { + j = 3; + } + temp = FX_Alloc(uint8_t, pitch); + if (temp == NULL) { + return; + } + FXSYS_memcpy(temp, &buf[pitch * row], pitch); + pass[j].Add(temp); + row++; + } + for (i = 0, row = 0; i < 4; i++) { + for (j = 0; j < pass[i].GetSize(); j++, row++) { + FXSYS_memcpy((uint8_t*)&buf[pitch * row], pass[i].GetAt(j), pitch); + FX_Free(pass[i].GetAt(j)); + } + } +} +static void _gif_write_block_data(const uint8_t* src_buf, + FX_DWORD src_len, + uint8_t*& dst_buf, + FX_DWORD& dst_len, + FX_DWORD& dst_offset) { + FX_DWORD src_offset = 0; + while (src_len > GIF_DATA_BLOCK) { + dst_buf[dst_offset++] = GIF_DATA_BLOCK; + FXSYS_memcpy(&dst_buf[dst_offset], &src_buf[src_offset], GIF_DATA_BLOCK); + dst_offset += GIF_DATA_BLOCK; + src_offset += GIF_DATA_BLOCK; + src_len -= GIF_DATA_BLOCK; + } + dst_buf[dst_offset++] = (uint8_t)src_len; + FXSYS_memcpy(&dst_buf[dst_offset], &src_buf[src_offset], src_len); + dst_offset += src_len; +} +static FX_BOOL _gif_write_data(gif_compress_struct_p gif_ptr, + uint8_t*& dst_buf, + FX_DWORD& dst_len) { + if (!_gif_grow_buf(dst_buf, dst_len, gif_ptr->cur_offset + GIF_DATA_BLOCK)) { + return FALSE; + } +#ifdef GIF_SUPPORT_GRAPHIC_CONTROL_EXTENSION + if (FXSYS_memcmp(gif_ptr->header_ptr->version, "89a", 3) == 0) { + dst_buf[gif_ptr->cur_offset++] = GIF_SIG_EXTENSION; + dst_buf[gif_ptr->cur_offset++] = GIF_BLOCK_GCE; + gif_ptr->gce_ptr->block_size = 4; + dst_buf[gif_ptr->cur_offset++] = gif_ptr->gce_ptr->block_size; + gif_ptr->gce_ptr->gce_flag = 0; + dst_buf[gif_ptr->cur_offset++] = gif_ptr->gce_ptr->gce_flag; + gif_ptr->gce_ptr->delay_time = 10; + _SetWord_LSBFirst(dst_buf + gif_ptr->cur_offset, + gif_ptr->gce_ptr->delay_time); + gif_ptr->cur_offset += 2; + gif_ptr->gce_ptr->trans_index = 0; + dst_buf[gif_ptr->cur_offset++] = gif_ptr->gce_ptr->trans_index; + dst_buf[gif_ptr->cur_offset++] = 0; + } +#endif + dst_buf[gif_ptr->cur_offset++] = GIF_SIG_IMAGE; + _SetWord_LSBFirst(dst_buf + gif_ptr->cur_offset, + gif_ptr->image_info_ptr->left); + gif_ptr->cur_offset += 2; + _SetWord_LSBFirst(dst_buf + gif_ptr->cur_offset, + gif_ptr->image_info_ptr->top); + gif_ptr->cur_offset += 2; + _SetWord_LSBFirst(dst_buf + gif_ptr->cur_offset, + gif_ptr->image_info_ptr->width); + gif_ptr->cur_offset += 2; + _SetWord_LSBFirst(dst_buf + gif_ptr->cur_offset, + gif_ptr->image_info_ptr->height); + gif_ptr->cur_offset += 2; + GifLF& lf = (GifLF&)gif_ptr->image_info_ptr->local_flag; + dst_buf[gif_ptr->cur_offset++] = gif_ptr->image_info_ptr->local_flag; + if (gif_ptr->local_pal) { + FX_DWORD pal_size = sizeof(GifPalette) * gif_ptr->lpal_num; + if (!_gif_grow_buf(dst_buf, dst_len, pal_size + gif_ptr->cur_offset)) { + return FALSE; + } + FXSYS_memcpy(&dst_buf[gif_ptr->cur_offset], gif_ptr->local_pal, pal_size); + gif_ptr->cur_offset += pal_size; + } + if (lf.interlace) { + interlace_buf(gif_ptr->src_buf, gif_ptr->src_pitch, + gif_ptr->image_info_ptr->height); + } + uint8_t code_bit = lf.pal_bits; + if (lf.local_pal == 0) { + GifGF& gf = (GifGF&)gif_ptr->lsd_ptr->global_flag; + code_bit = gf.pal_bits; + } + gif_ptr->img_encoder_ptr->Start(code_bit, gif_ptr->src_buf, dst_buf, + gif_ptr->cur_offset); + FX_DWORD i; + for (i = 0; i < gif_ptr->src_row; i++) { + if (!gif_ptr->img_encoder_ptr->Encode( + &gif_ptr->src_buf[i * gif_ptr->src_pitch], + gif_ptr->src_width * (code_bit + 1), dst_buf, dst_len, + gif_ptr->cur_offset)) { + return FALSE; + } + } + gif_ptr->img_encoder_ptr->Finish(dst_buf, dst_len, gif_ptr->cur_offset); + dst_buf[gif_ptr->cur_offset++] = 0; +#ifdef GIF_SUPPORT_COMMENT_EXTENSION + if (FXSYS_memcmp(gif_ptr->header_ptr->version, "89a", 3) == 0 && + gif_ptr->cmt_data_ptr) { + dst_buf[gif_ptr->cur_offset++] = GIF_SIG_EXTENSION; + dst_buf[gif_ptr->cur_offset++] = GIF_BLOCK_CE; + _gif_write_block_data(gif_ptr->cmt_data_ptr, gif_ptr->cmt_data_len, dst_buf, + dst_len, gif_ptr->cur_offset); + dst_buf[gif_ptr->cur_offset++] = 0; + } +#endif +#ifdef GIF_SUPPORT_PLAIN_TEXT_EXTENSION + if (FXSYS_memcmp(gif_ptr->header_ptr->version, "89a", 3) == 0 && + gif_ptr->pte_data_ptr) { + dst_buf[gif_ptr->cur_offset++] = GIF_SIG_EXTENSION; + dst_buf[gif_ptr->cur_offset++] = GIF_BLOCK_PTE; + dst_buf[gif_ptr->cur_offset++] = gif_ptr->pte_ptr->block_size; + _SetWord_LSBFirst(dst_buf + gif_ptr->cur_offset, + gif_ptr->pte_ptr->grid_left); + gif_ptr->cur_offset += 2; + _SetWord_LSBFirst(dst_buf + gif_ptr->cur_offset, + gif_ptr->pte_ptr->grid_top); + gif_ptr->cur_offset += 2; + _SetWord_LSBFirst(dst_buf + gif_ptr->cur_offset, + gif_ptr->pte_ptr->grid_width); + gif_ptr->cur_offset += 2; + _SetWord_LSBFirst(dst_buf + gif_ptr->cur_offset, + gif_ptr->pte_ptr->grid_height); + gif_ptr->cur_offset += 2; + _SetWord_LSBFirst(dst_buf + gif_ptr->cur_offset, + gif_ptr->pte_ptr->char_width); + gif_ptr->cur_offset += 2; + _SetWord_LSBFirst(dst_buf + gif_ptr->cur_offset, + gif_ptr->pte_ptr->char_height); + gif_ptr->cur_offset += 2; + _SetWord_LSBFirst(dst_buf + gif_ptr->cur_offset, + gif_ptr->pte_ptr->fc_index); + gif_ptr->cur_offset += 2; + _SetWord_LSBFirst(dst_buf + gif_ptr->cur_offset, + gif_ptr->pte_ptr->bc_index); + gif_ptr->cur_offset += 2; + _gif_write_block_data(gif_ptr->pte_data_ptr, gif_ptr->pte_data_len, dst_buf, + dst_len, gif_ptr->cur_offset); + gif_ptr->cur_offset += gif_ptr->pte_data_len; + dst_buf[gif_ptr->cur_offset++] = 0; + } +#endif +#ifdef GIF_SUPPORT_APPLICATION_EXTENSION + if (FXSYS_memcmp(gif_ptr->header_ptr->version, "89a", 3) == 0 && + gif_ptr->app_data) { + dst_buf[gif_ptr->cur_offset++] = GIF_SIG_EXTENSION; + dst_buf[gif_ptr->cur_offset++] = GIF_BLOCK_AE; + dst_buf[gif_ptr->cur_offset++] = 11; + FXSYS_memcpy(&dst_buf[gif_ptr->cur_offset], gif_ptr->app_identify, 8); + gif_ptr->cur_offset += 8; + FXSYS_memcpy(&dst_buf[gif_ptr->cur_offset], gif_ptr->app_authentication, 8); + gif_ptr->cur_offset += 3; + FXSYS_memcpy(&dst_buf[gif_ptr->cur_offset], gif_ptr->app_data, + gif_ptr->app_data_size); + gif_ptr->cur_offset += gif_ptr->app_data_size; + dst_buf[gif_ptr->cur_offset++] = 0; + } +#endif + dst_buf[gif_ptr->cur_offset++] = GIF_SIG_TRAILER; + return TRUE; +} +FX_BOOL _gif_encode(gif_compress_struct_p gif_ptr, + uint8_t*& dst_buf, + FX_DWORD& dst_len) { + if (!_gif_write_header(gif_ptr, dst_buf, dst_len)) { + return FALSE; + } + FX_DWORD cur_offset = gif_ptr->cur_offset; + FX_BOOL res = TRUE; + if (gif_ptr->frames) { + gif_ptr->cur_offset--; + } + if (!_gif_write_data(gif_ptr, dst_buf, dst_len)) { + gif_ptr->cur_offset = cur_offset; + res = FALSE; + } + dst_len = gif_ptr->cur_offset; + dst_buf[dst_len - 1] = GIF_SIG_TRAILER; + if (res) { + gif_ptr->frames++; + } + return res; +} diff --git a/core/src/fxcodec/lgif/fx_gif.h b/core/src/fxcodec/lgif/fx_gif.h index 8b2acc86ae..3b4ec0f0e6 100644 --- a/core/src/fxcodec/lgif/fx_gif.h +++ b/core/src/fxcodec/lgif/fx_gif.h @@ -1,332 +1,332 @@ -// Copyright 2014 PDFium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
-
-#include <setjmp.h>
-
-#include "core/include/fxcrt/fx_basic.h"
-
-extern FX_WORD _GetWord_LSBFirst(uint8_t* p);
-extern void _SetWord_LSBFirst(uint8_t* p, FX_WORD v);
-extern void _BpcConvert(const uint8_t* src_buf,
- FX_DWORD src_len,
- int32_t src_bpc,
- int32_t dst_bpc,
- uint8_t*& dst_buf,
- FX_DWORD& dst_len);
-#define GIF_SUPPORT_COMMENT_EXTENSION
-#define GIF_SUPPORT_GRAPHIC_CONTROL_EXTENSION
-#define GIF_SUPPORT_PLAIN_TEXT_EXTENSION
-#define GIF_SIGNATURE "GIF"
-#define GIF_SIG_EXTENSION 0x21
-#define GIF_SIG_IMAGE 0x2C
-#define GIF_SIG_TRAILER 0x3B
-#define GIF_BLOCK_GCE 0xF9
-#define GIF_BLOCK_PTE 0x01
-#define GIF_BLOCK_CE 0xFE
-#define GIF_BLOCK_AE 0xFF
-#define GIF_BLOCK_TERMINAL 0x00
-#define GIF_MAX_LZW_CODE 4096
-#define GIF_DATA_BLOCK 255
-#define GIF_MAX_ERROR_SIZE 256
-#define GIF_D_STATUS_SIG 0x01
-#define GIF_D_STATUS_TAIL 0x02
-#define GIF_D_STATUS_EXT 0x03
-#define GIF_D_STATUS_EXT_AE 0x04
-#define GIF_D_STATUS_EXT_CE 0x05
-#define GIF_D_STATUS_EXT_GCE 0x06
-#define GIF_D_STATUS_EXT_PTE 0x07
-#define GIF_D_STATUS_EXT_UNE 0x08
-#define GIF_D_STATUS_IMG_INFO 0x09
-#define GIF_D_STATUS_IMG_DATA 0x0A
-#pragma pack(1)
-typedef struct tagGifGF {
- uint8_t pal_bits : 3;
- uint8_t sort_flag : 1;
- uint8_t color_resolution : 3;
- uint8_t global_pal : 1;
-} GifGF;
-typedef struct tagGifLF {
- uint8_t pal_bits : 3;
- uint8_t reserved : 2;
- uint8_t sort_flag : 1;
- uint8_t interlace : 1;
- uint8_t local_pal : 1;
-} GifLF;
-typedef struct tagGifHeader {
- char signature[3];
- char version[3];
-} GifHeader;
-typedef struct tagGifLSD {
- FX_WORD width;
- FX_WORD height;
- uint8_t global_flag;
- uint8_t bc_index;
- uint8_t pixel_aspect;
-} GifLSD;
-typedef struct tagGifImageInfo {
- FX_WORD left;
- FX_WORD top;
- FX_WORD width;
- FX_WORD height;
-
- uint8_t local_flag;
-} GifImageInfo;
-typedef struct tagGifCEF {
- uint8_t transparency : 1;
- uint8_t user_input : 1;
- uint8_t disposal_method : 3;
- uint8_t reserved : 3;
-} GifCEF;
-typedef struct tagGifGCE {
- uint8_t block_size;
- uint8_t gce_flag;
- FX_WORD delay_time;
- uint8_t trans_index;
-} GifGCE;
-typedef struct tagGifPTE {
- uint8_t block_size;
- FX_WORD grid_left;
- FX_WORD grid_top;
- FX_WORD grid_width;
- FX_WORD grid_height;
-
- uint8_t char_width;
- uint8_t char_height;
-
- uint8_t fc_index;
- uint8_t bc_index;
-} GifPTE;
-typedef struct tagGifAE {
- uint8_t block_size;
- uint8_t app_identify[8];
- uint8_t app_authentication[3];
-} GifAE;
-typedef struct tagGifPalette { uint8_t r, g, b; } GifPalette;
-#pragma pack()
-typedef struct tagGifImage {
- GifGCE* image_gce_ptr;
- GifPalette* local_pal_ptr;
- GifImageInfo* image_info_ptr;
- uint8_t image_code_size;
- FX_DWORD image_data_pos;
- uint8_t* image_row_buf;
- int32_t image_row_num;
-} GifImage;
-typedef struct tagGifPlainText {
- GifGCE* gce_ptr;
- GifPTE* pte_ptr;
- CFX_ByteString* string_ptr;
-} GifPlainText;
-class CGifLZWDecoder {
- public:
- struct tag_Table {
- FX_WORD prefix;
- uint8_t suffix;
- };
- CGifLZWDecoder(FX_CHAR* error_ptr = NULL) { err_msg_ptr = error_ptr; }
- void InitTable(uint8_t code_len);
-
- int32_t Decode(uint8_t* des_buf, FX_DWORD& des_size);
-
- void Input(uint8_t* src_buf, FX_DWORD src_size);
- FX_DWORD GetAvailInput();
-
- private:
- void ClearTable();
- void AddCode(FX_WORD prefix_code, uint8_t append_char);
- void DecodeString(FX_WORD code);
- uint8_t code_size;
- uint8_t code_size_cur;
- FX_WORD code_clear;
- FX_WORD code_end;
- FX_WORD code_next;
- uint8_t code_first;
- uint8_t stack[GIF_MAX_LZW_CODE];
- FX_WORD stack_size;
- tag_Table code_table[GIF_MAX_LZW_CODE];
- FX_WORD code_old;
-
- uint8_t* next_in;
- FX_DWORD avail_in;
-
- uint8_t bits_left;
- FX_DWORD code_store;
-
- FX_CHAR* err_msg_ptr;
-};
-class CGifLZWEncoder {
- public:
- struct tag_Table {
- FX_WORD prefix;
- uint8_t suffix;
- };
- CGifLZWEncoder();
- ~CGifLZWEncoder();
- void Start(uint8_t code_len,
- const uint8_t* src_buf,
- uint8_t*& dst_buf,
- FX_DWORD& offset);
- FX_BOOL Encode(const uint8_t* src_buf,
- FX_DWORD src_len,
- uint8_t*& dst_buf,
- FX_DWORD& dst_len,
- FX_DWORD& offset);
- void Finish(uint8_t*& dst_buf, FX_DWORD& dst_len, FX_DWORD& offset);
-
- private:
- void ClearTable();
- FX_BOOL LookUpInTable(const uint8_t* buf,
- FX_DWORD& offset,
- uint8_t& bit_offset);
- void EncodeString(FX_DWORD index,
- uint8_t*& dst_buf,
- FX_DWORD& dst_len,
- FX_DWORD& offset);
- void WriteBlock(uint8_t*& dst_buf, FX_DWORD& dst_len, FX_DWORD& offset);
- jmp_buf jmp;
- FX_DWORD src_offset;
- uint8_t src_bit_offset;
- uint8_t src_bit_cut;
- FX_DWORD src_bit_num;
- uint8_t code_size;
- FX_WORD code_clear;
- FX_WORD code_end;
- FX_WORD index_num;
- uint8_t bit_offset;
- uint8_t index_bit_cur;
- uint8_t index_buf[GIF_DATA_BLOCK];
- uint8_t index_buf_len;
- tag_Table code_table[GIF_MAX_LZW_CODE];
- FX_WORD table_cur;
-};
-typedef struct tag_gif_decompress_struct gif_decompress_struct;
-typedef gif_decompress_struct* gif_decompress_struct_p;
-typedef gif_decompress_struct_p* gif_decompress_struct_pp;
-static int32_t s_gif_interlace_step[4] = {8, 8, 4, 2};
-struct tag_gif_decompress_struct {
- jmp_buf jmpbuf;
- FX_CHAR* err_ptr;
- void (*_gif_error_fn)(gif_decompress_struct_p gif_ptr,
- const FX_CHAR* err_msg);
- void* context_ptr;
- int width;
- int height;
- GifPalette* global_pal_ptr;
- int32_t global_pal_num;
- uint8_t global_sort_flag;
- uint8_t global_color_resolution;
-
- uint8_t bc_index;
- uint8_t pixel_aspect;
- CGifLZWDecoder* img_decoder_ptr;
- FX_DWORD img_row_offset;
- FX_DWORD img_row_avail_size;
- uint8_t img_pass_num;
- CFX_ArrayTemplate<GifImage*>* img_ptr_arr_ptr;
- uint8_t* (*_gif_ask_buf_for_pal_fn)(gif_decompress_struct_p gif_ptr,
- int32_t pal_size);
- uint8_t* next_in;
- FX_DWORD avail_in;
- int32_t decode_status;
- FX_DWORD skip_size;
- void (*_gif_record_current_position_fn)(gif_decompress_struct_p gif_ptr,
- FX_DWORD* cur_pos_ptr);
- void (*_gif_get_row_fn)(gif_decompress_struct_p gif_ptr,
- int32_t row_num,
- uint8_t* row_buf);
- FX_BOOL (*_gif_get_record_position_fn)(gif_decompress_struct_p gif_ptr, FX_DWORD cur_pos,
- int32_t left, int32_t top, int32_t width, int32_t height,
- int32_t pal_num, void* pal_ptr,
- int32_t delay_time, FX_BOOL user_input,
- int32_t trans_index, int32_t disposal_method, FX_BOOL interlace);
-#ifdef GIF_SUPPORT_APPLICATION_EXTENSION
- uint8_t app_identify[8];
- uint8_t app_authentication[3];
- FX_DWORD app_data_size;
- uint8_t* app_data;
-#endif
-#ifdef GIF_SUPPORT_COMMENT_EXTENSION
- CFX_ByteString* cmt_data_ptr;
-#endif
-#ifdef GIF_SUPPORT_GRAPHIC_CONTROL_EXTENSION
- GifGCE* gce_ptr;
-#endif
-#ifdef GIF_SUPPORT_PLAIN_TEXT_EXTENSION
- CFX_ArrayTemplate<GifPlainText*>* pt_ptr_arr_ptr;
-#endif
-};
-typedef struct tag_gif_compress_struct gif_compress_struct;
-typedef gif_compress_struct* gif_compress_struct_p;
-typedef gif_compress_struct_p* gif_compress_struct_pp;
-struct tag_gif_compress_struct {
- const uint8_t* src_buf;
- FX_DWORD src_pitch;
- FX_DWORD src_width;
- FX_DWORD src_row;
- FX_DWORD cur_offset;
- FX_DWORD frames;
- GifHeader* header_ptr;
- GifLSD* lsd_ptr;
- GifPalette* global_pal;
- FX_WORD gpal_num;
- GifPalette* local_pal;
- FX_WORD lpal_num;
- GifImageInfo* image_info_ptr;
- CGifLZWEncoder* img_encoder_ptr;
-#ifdef GIF_SUPPORT_APPLICATION_EXTENSION
- uint8_t app_identify[8];
- uint8_t app_authentication[3];
- FX_DWORD app_data_size;
- uint8_t* app_data;
-#endif
-
-#ifdef GIF_SUPPORT_COMMENT_EXTENSION
- uint8_t* cmt_data_ptr;
- FX_DWORD cmt_data_len;
-#endif
-
-#ifdef GIF_SUPPORT_GRAPHIC_CONTROL_EXTENSION
- GifGCE* gce_ptr;
-#endif
-
-#ifdef GIF_SUPPORT_PLAIN_TEXT_EXTENSION
- GifPTE* pte_ptr;
- const uint8_t* pte_data_ptr;
- FX_DWORD pte_data_len;
-#endif
-};
-void _gif_error(gif_decompress_struct_p gif_ptr, const FX_CHAR* err_msg);
-void _gif_warn(gif_decompress_struct_p gif_ptr, const FX_CHAR* err_msg);
-gif_decompress_struct_p _gif_create_decompress();
-void _gif_destroy_decompress(gif_decompress_struct_pp gif_ptr_ptr);
-gif_compress_struct_p _gif_create_compress();
-void _gif_destroy_compress(gif_compress_struct_pp gif_ptr_ptr);
-int32_t _gif_read_header(gif_decompress_struct_p gif_ptr);
-int32_t _gif_get_frame(gif_decompress_struct_p gif_ptr);
-int32_t _gif_get_frame_num(gif_decompress_struct_p gif_ptr);
-int32_t _gif_decode_extension(gif_decompress_struct_p gif_ptr);
-int32_t _gif_decode_image_info(gif_decompress_struct_p gif_ptr);
-void _gif_takeover_gce_ptr(gif_decompress_struct_p gif_ptr,
- GifGCE** gce_ptr_ptr);
-int32_t _gif_load_frame(gif_decompress_struct_p gif_ptr, int32_t frame_num);
-uint8_t* _gif_read_data(gif_decompress_struct_p gif_ptr,
- uint8_t** des_buf_pp,
- FX_DWORD data_size);
-void _gif_save_decoding_status(gif_decompress_struct_p gif_ptr, int32_t status);
-void _gif_input_buffer(gif_decompress_struct_p gif_ptr,
- uint8_t* src_buf,
- FX_DWORD src_size);
-FX_DWORD _gif_get_avail_input(gif_decompress_struct_p gif_ptr,
- uint8_t** avial_buf_ptr);
-void interlace_buf(const uint8_t* buf, FX_DWORD width, FX_DWORD height);
-FX_BOOL _gif_encode(gif_compress_struct_p gif_ptr,
- uint8_t*& dst_buf,
- FX_DWORD& dst_len);
-#define GIF_PTR_NOT_NULL(ptr, gif_ptr) \
- if (ptr == NULL) { \
- _gif_error(gif_ptr, "Out Of Memory"); \
- return 0; \
- }
+// Copyright 2014 PDFium Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. + +// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com + +#include <setjmp.h> + +#include "core/include/fxcrt/fx_basic.h" + +extern FX_WORD _GetWord_LSBFirst(uint8_t* p); +extern void _SetWord_LSBFirst(uint8_t* p, FX_WORD v); +extern void _BpcConvert(const uint8_t* src_buf, + FX_DWORD src_len, + int32_t src_bpc, + int32_t dst_bpc, + uint8_t*& dst_buf, + FX_DWORD& dst_len); +#define GIF_SUPPORT_COMMENT_EXTENSION +#define GIF_SUPPORT_GRAPHIC_CONTROL_EXTENSION +#define GIF_SUPPORT_PLAIN_TEXT_EXTENSION +#define GIF_SIGNATURE "GIF" +#define GIF_SIG_EXTENSION 0x21 +#define GIF_SIG_IMAGE 0x2C +#define GIF_SIG_TRAILER 0x3B +#define GIF_BLOCK_GCE 0xF9 +#define GIF_BLOCK_PTE 0x01 +#define GIF_BLOCK_CE 0xFE +#define GIF_BLOCK_AE 0xFF +#define GIF_BLOCK_TERMINAL 0x00 +#define GIF_MAX_LZW_CODE 4096 +#define GIF_DATA_BLOCK 255 +#define GIF_MAX_ERROR_SIZE 256 +#define GIF_D_STATUS_SIG 0x01 +#define GIF_D_STATUS_TAIL 0x02 +#define GIF_D_STATUS_EXT 0x03 +#define GIF_D_STATUS_EXT_AE 0x04 +#define GIF_D_STATUS_EXT_CE 0x05 +#define GIF_D_STATUS_EXT_GCE 0x06 +#define GIF_D_STATUS_EXT_PTE 0x07 +#define GIF_D_STATUS_EXT_UNE 0x08 +#define GIF_D_STATUS_IMG_INFO 0x09 +#define GIF_D_STATUS_IMG_DATA 0x0A +#pragma pack(1) +typedef struct tagGifGF { + uint8_t pal_bits : 3; + uint8_t sort_flag : 1; + uint8_t color_resolution : 3; + uint8_t global_pal : 1; +} GifGF; +typedef struct tagGifLF { + uint8_t pal_bits : 3; + uint8_t reserved : 2; + uint8_t sort_flag : 1; + uint8_t interlace : 1; + uint8_t local_pal : 1; +} GifLF; +typedef struct tagGifHeader { + char signature[3]; + char version[3]; +} GifHeader; +typedef struct tagGifLSD { + FX_WORD width; + FX_WORD height; + uint8_t global_flag; + uint8_t bc_index; + uint8_t pixel_aspect; +} GifLSD; +typedef struct tagGifImageInfo { + FX_WORD left; + FX_WORD top; + FX_WORD width; + FX_WORD height; + + uint8_t local_flag; +} GifImageInfo; +typedef struct tagGifCEF { + uint8_t transparency : 1; + uint8_t user_input : 1; + uint8_t disposal_method : 3; + uint8_t reserved : 3; +} GifCEF; +typedef struct tagGifGCE { + uint8_t block_size; + uint8_t gce_flag; + FX_WORD delay_time; + uint8_t trans_index; +} GifGCE; +typedef struct tagGifPTE { + uint8_t block_size; + FX_WORD grid_left; + FX_WORD grid_top; + FX_WORD grid_width; + FX_WORD grid_height; + + uint8_t char_width; + uint8_t char_height; + + uint8_t fc_index; + uint8_t bc_index; +} GifPTE; +typedef struct tagGifAE { + uint8_t block_size; + uint8_t app_identify[8]; + uint8_t app_authentication[3]; +} GifAE; +typedef struct tagGifPalette { uint8_t r, g, b; } GifPalette; +#pragma pack() +typedef struct tagGifImage { + GifGCE* image_gce_ptr; + GifPalette* local_pal_ptr; + GifImageInfo* image_info_ptr; + uint8_t image_code_size; + FX_DWORD image_data_pos; + uint8_t* image_row_buf; + int32_t image_row_num; +} GifImage; +typedef struct tagGifPlainText { + GifGCE* gce_ptr; + GifPTE* pte_ptr; + CFX_ByteString* string_ptr; +} GifPlainText; +class CGifLZWDecoder { + public: + struct tag_Table { + FX_WORD prefix; + uint8_t suffix; + }; + CGifLZWDecoder(FX_CHAR* error_ptr = NULL) { err_msg_ptr = error_ptr; } + void InitTable(uint8_t code_len); + + int32_t Decode(uint8_t* des_buf, FX_DWORD& des_size); + + void Input(uint8_t* src_buf, FX_DWORD src_size); + FX_DWORD GetAvailInput(); + + private: + void ClearTable(); + void AddCode(FX_WORD prefix_code, uint8_t append_char); + void DecodeString(FX_WORD code); + uint8_t code_size; + uint8_t code_size_cur; + FX_WORD code_clear; + FX_WORD code_end; + FX_WORD code_next; + uint8_t code_first; + uint8_t stack[GIF_MAX_LZW_CODE]; + FX_WORD stack_size; + tag_Table code_table[GIF_MAX_LZW_CODE]; + FX_WORD code_old; + + uint8_t* next_in; + FX_DWORD avail_in; + + uint8_t bits_left; + FX_DWORD code_store; + + FX_CHAR* err_msg_ptr; +}; +class CGifLZWEncoder { + public: + struct tag_Table { + FX_WORD prefix; + uint8_t suffix; + }; + CGifLZWEncoder(); + ~CGifLZWEncoder(); + void Start(uint8_t code_len, + const uint8_t* src_buf, + uint8_t*& dst_buf, + FX_DWORD& offset); + FX_BOOL Encode(const uint8_t* src_buf, + FX_DWORD src_len, + uint8_t*& dst_buf, + FX_DWORD& dst_len, + FX_DWORD& offset); + void Finish(uint8_t*& dst_buf, FX_DWORD& dst_len, FX_DWORD& offset); + + private: + void ClearTable(); + FX_BOOL LookUpInTable(const uint8_t* buf, + FX_DWORD& offset, + uint8_t& bit_offset); + void EncodeString(FX_DWORD index, + uint8_t*& dst_buf, + FX_DWORD& dst_len, + FX_DWORD& offset); + void WriteBlock(uint8_t*& dst_buf, FX_DWORD& dst_len, FX_DWORD& offset); + jmp_buf jmp; + FX_DWORD src_offset; + uint8_t src_bit_offset; + uint8_t src_bit_cut; + FX_DWORD src_bit_num; + uint8_t code_size; + FX_WORD code_clear; + FX_WORD code_end; + FX_WORD index_num; + uint8_t bit_offset; + uint8_t index_bit_cur; + uint8_t index_buf[GIF_DATA_BLOCK]; + uint8_t index_buf_len; + tag_Table code_table[GIF_MAX_LZW_CODE]; + FX_WORD table_cur; +}; +typedef struct tag_gif_decompress_struct gif_decompress_struct; +typedef gif_decompress_struct* gif_decompress_struct_p; +typedef gif_decompress_struct_p* gif_decompress_struct_pp; +static int32_t s_gif_interlace_step[4] = {8, 8, 4, 2}; +struct tag_gif_decompress_struct { + jmp_buf jmpbuf; + FX_CHAR* err_ptr; + void (*_gif_error_fn)(gif_decompress_struct_p gif_ptr, + const FX_CHAR* err_msg); + void* context_ptr; + int width; + int height; + GifPalette* global_pal_ptr; + int32_t global_pal_num; + uint8_t global_sort_flag; + uint8_t global_color_resolution; + + uint8_t bc_index; + uint8_t pixel_aspect; + CGifLZWDecoder* img_decoder_ptr; + FX_DWORD img_row_offset; + FX_DWORD img_row_avail_size; + uint8_t img_pass_num; + CFX_ArrayTemplate<GifImage*>* img_ptr_arr_ptr; + uint8_t* (*_gif_ask_buf_for_pal_fn)(gif_decompress_struct_p gif_ptr, + int32_t pal_size); + uint8_t* next_in; + FX_DWORD avail_in; + int32_t decode_status; + FX_DWORD skip_size; + void (*_gif_record_current_position_fn)(gif_decompress_struct_p gif_ptr, + FX_DWORD* cur_pos_ptr); + void (*_gif_get_row_fn)(gif_decompress_struct_p gif_ptr, + int32_t row_num, + uint8_t* row_buf); + FX_BOOL (*_gif_get_record_position_fn)(gif_decompress_struct_p gif_ptr, FX_DWORD cur_pos, + int32_t left, int32_t top, int32_t width, int32_t height, + int32_t pal_num, void* pal_ptr, + int32_t delay_time, FX_BOOL user_input, + int32_t trans_index, int32_t disposal_method, FX_BOOL interlace); +#ifdef GIF_SUPPORT_APPLICATION_EXTENSION + uint8_t app_identify[8]; + uint8_t app_authentication[3]; + FX_DWORD app_data_size; + uint8_t* app_data; +#endif +#ifdef GIF_SUPPORT_COMMENT_EXTENSION + CFX_ByteString* cmt_data_ptr; +#endif +#ifdef GIF_SUPPORT_GRAPHIC_CONTROL_EXTENSION + GifGCE* gce_ptr; +#endif +#ifdef GIF_SUPPORT_PLAIN_TEXT_EXTENSION + CFX_ArrayTemplate<GifPlainText*>* pt_ptr_arr_ptr; +#endif +}; +typedef struct tag_gif_compress_struct gif_compress_struct; +typedef gif_compress_struct* gif_compress_struct_p; +typedef gif_compress_struct_p* gif_compress_struct_pp; +struct tag_gif_compress_struct { + const uint8_t* src_buf; + FX_DWORD src_pitch; + FX_DWORD src_width; + FX_DWORD src_row; + FX_DWORD cur_offset; + FX_DWORD frames; + GifHeader* header_ptr; + GifLSD* lsd_ptr; + GifPalette* global_pal; + FX_WORD gpal_num; + GifPalette* local_pal; + FX_WORD lpal_num; + GifImageInfo* image_info_ptr; + CGifLZWEncoder* img_encoder_ptr; +#ifdef GIF_SUPPORT_APPLICATION_EXTENSION + uint8_t app_identify[8]; + uint8_t app_authentication[3]; + FX_DWORD app_data_size; + uint8_t* app_data; +#endif + +#ifdef GIF_SUPPORT_COMMENT_EXTENSION + uint8_t* cmt_data_ptr; + FX_DWORD cmt_data_len; +#endif + +#ifdef GIF_SUPPORT_GRAPHIC_CONTROL_EXTENSION + GifGCE* gce_ptr; +#endif + +#ifdef GIF_SUPPORT_PLAIN_TEXT_EXTENSION + GifPTE* pte_ptr; + const uint8_t* pte_data_ptr; + FX_DWORD pte_data_len; +#endif +}; +void _gif_error(gif_decompress_struct_p gif_ptr, const FX_CHAR* err_msg); +void _gif_warn(gif_decompress_struct_p gif_ptr, const FX_CHAR* err_msg); +gif_decompress_struct_p _gif_create_decompress(); +void _gif_destroy_decompress(gif_decompress_struct_pp gif_ptr_ptr); +gif_compress_struct_p _gif_create_compress(); +void _gif_destroy_compress(gif_compress_struct_pp gif_ptr_ptr); +int32_t _gif_read_header(gif_decompress_struct_p gif_ptr); +int32_t _gif_get_frame(gif_decompress_struct_p gif_ptr); +int32_t _gif_get_frame_num(gif_decompress_struct_p gif_ptr); +int32_t _gif_decode_extension(gif_decompress_struct_p gif_ptr); +int32_t _gif_decode_image_info(gif_decompress_struct_p gif_ptr); +void _gif_takeover_gce_ptr(gif_decompress_struct_p gif_ptr, + GifGCE** gce_ptr_ptr); +int32_t _gif_load_frame(gif_decompress_struct_p gif_ptr, int32_t frame_num); +uint8_t* _gif_read_data(gif_decompress_struct_p gif_ptr, + uint8_t** des_buf_pp, + FX_DWORD data_size); +void _gif_save_decoding_status(gif_decompress_struct_p gif_ptr, int32_t status); +void _gif_input_buffer(gif_decompress_struct_p gif_ptr, + uint8_t* src_buf, + FX_DWORD src_size); +FX_DWORD _gif_get_avail_input(gif_decompress_struct_p gif_ptr, + uint8_t** avial_buf_ptr); +void interlace_buf(const uint8_t* buf, FX_DWORD width, FX_DWORD height); +FX_BOOL _gif_encode(gif_compress_struct_p gif_ptr, + uint8_t*& dst_buf, + FX_DWORD& dst_len); +#define GIF_PTR_NOT_NULL(ptr, gif_ptr) \ + if (ptr == NULL) { \ + _gif_error(gif_ptr, "Out Of Memory"); \ + return 0; \ + } |