diff options
| author | John Abd-El-Malek <jabdelmalek@google.com> | 2014-05-17 22:33:34 -0700 |
|---|---|---|
| committer | John Abd-El-Malek <jabdelmalek@google.com> | 2014-05-17 22:33:34 -0700 |
| commit | 5110c4743751145c4ae1934cd1d83bc6c55bb43f (patch) | |
| tree | b141608096b73163182764c25b895d3df4b2c182 /core/src/fxcodec/codec | |
| parent | 76b563d2feed92ed328afb1f15e3466a9536b11b (diff) | |
| download | pdfium-5110c4743751145c4ae1934cd1d83bc6c55bb43f.tar.xz | |
Initial commit.
Diffstat (limited to 'core/src/fxcodec/codec')
| -rw-r--r-- | core/src/fxcodec/codec/codec_int.h | 270 | ||||
| -rw-r--r-- | core/src/fxcodec/codec/fx_codec.cpp | 447 | ||||
| -rw-r--r-- | core/src/fxcodec/codec/fx_codec_fax.cpp | 968 | ||||
| -rw-r--r-- | core/src/fxcodec/codec/fx_codec_flate.cpp | 945 | ||||
| -rw-r--r-- | core/src/fxcodec/codec/fx_codec_icc.cpp | 1360 | ||||
| -rw-r--r-- | core/src/fxcodec/codec/fx_codec_jbig.cpp | 212 | ||||
| -rw-r--r-- | core/src/fxcodec/codec/fx_codec_jbig_enc.cpp | 11 | ||||
| -rw-r--r-- | core/src/fxcodec/codec/fx_codec_jpeg.cpp | 735 | ||||
| -rw-r--r-- | core/src/fxcodec/codec/fx_codec_jpx_opj.cpp | 799 |
9 files changed, 5747 insertions, 0 deletions
diff --git a/core/src/fxcodec/codec/codec_int.h b/core/src/fxcodec/codec/codec_int.h new file mode 100644 index 0000000000..571af61470 --- /dev/null +++ b/core/src/fxcodec/codec/codec_int.h @@ -0,0 +1,270 @@ +// 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 <limits.h>
+class CCodec_BasicModule : public ICodec_BasicModule
+{
+public:
+ virtual FX_BOOL RunLengthEncode(const FX_BYTE* src_buf, FX_DWORD src_size, FX_LPBYTE& dest_buf,
+ FX_DWORD& dest_size);
+ virtual FX_BOOL A85Encode(const FX_BYTE* src_buf, FX_DWORD src_size, FX_LPBYTE& dest_buf,
+ FX_DWORD& dest_size);
+ virtual ICodec_ScanlineDecoder* CreateRunLengthDecoder(FX_LPCBYTE src_buf, FX_DWORD src_size, int width, int height,
+ int nComps, int bpc);
+};
+struct CCodec_ImageDataCache {
+ int m_Width, m_Height;
+ int m_nCachedLines;
+ FX_BYTE m_Data;
+};
+class CCodec_ScanlineDecoder : public ICodec_ScanlineDecoder
+{
+public:
+
+ CCodec_ScanlineDecoder();
+
+ virtual ~CCodec_ScanlineDecoder();
+
+ virtual FX_DWORD GetSrcOffset()
+ {
+ return -1;
+ }
+
+ virtual void DownScale(int dest_width, int dest_height);
+
+ FX_LPBYTE GetScanline(int line);
+
+ FX_BOOL SkipToScanline(int line, IFX_Pause* pPause);
+
+ int GetWidth()
+ {
+ return m_OutputWidth;
+ }
+
+ int GetHeight()
+ {
+ return m_OutputHeight;
+ }
+
+ int CountComps()
+ {
+ return m_nComps;
+ }
+
+ int GetBPC()
+ {
+ return m_bpc;
+ }
+
+ FX_BOOL IsColorTransformed()
+ {
+ return m_bColorTransformed;
+ }
+
+ void ClearImageData()
+ {
+ if (m_pDataCache) {
+ FX_Free(m_pDataCache);
+ }
+ m_pDataCache = NULL;
+ }
+protected:
+
+ int m_OrigWidth;
+
+ int m_OrigHeight;
+
+ int m_DownScale;
+
+ int m_OutputWidth;
+
+ int m_OutputHeight;
+
+ int m_nComps;
+
+ int m_bpc;
+
+ int m_Pitch;
+
+ FX_BOOL m_bColorTransformed;
+
+ FX_LPBYTE ReadNextLine();
+
+ virtual FX_BOOL v_Rewind() = 0;
+
+ virtual FX_LPBYTE v_GetNextLine() = 0;
+
+ virtual void v_DownScale(int dest_width, int dest_height) = 0;
+
+ int m_NextLine;
+
+ FX_LPBYTE m_pLastScanline;
+
+ CCodec_ImageDataCache* m_pDataCache;
+};
+class CCodec_FaxModule : public ICodec_FaxModule
+{
+public:
+ virtual ICodec_ScanlineDecoder* CreateDecoder(FX_LPCBYTE src_buf, FX_DWORD src_size, int width, int height,
+ int K, FX_BOOL EndOfLine, FX_BOOL EncodedByteAlign, FX_BOOL BlackIs1, int Columns, int Rows);
+ FX_BOOL Encode(FX_LPCBYTE src_buf, int width, int height, int pitch, FX_LPBYTE& dest_buf, FX_DWORD& dest_size);
+};
+class CCodec_FlateModule : public ICodec_FlateModule
+{
+public:
+ virtual ICodec_ScanlineDecoder* CreateDecoder(FX_LPCBYTE src_buf, FX_DWORD src_size, int width, int height,
+ int nComps, int bpc, int predictor, int Colors, int BitsPerComponent, int Columns);
+ virtual FX_DWORD FlateOrLZWDecode(FX_BOOL bLZW, const FX_BYTE* src_buf, FX_DWORD src_size, FX_BOOL bEarlyChange,
+ int predictor, int Colors, int BitsPerComponent, int Columns,
+ FX_DWORD estimated_size, FX_LPBYTE& dest_buf, FX_DWORD& dest_size);
+ virtual FX_BOOL Encode(const FX_BYTE* src_buf, FX_DWORD src_size,
+ int predictor, int Colors, int BitsPerComponent, int Columns,
+ FX_LPBYTE& dest_buf, FX_DWORD& dest_size);
+ virtual FX_BOOL Encode(FX_LPCBYTE src_buf, FX_DWORD src_size, FX_LPBYTE& dest_buf, FX_DWORD& dest_size);
+};
+class CCodec_JpegModule : public ICodec_JpegModule
+{
+public:
+ CCodec_JpegModule() : m_pExtProvider(NULL) {}
+ void SetPovider(IFX_JpegProvider* pJP)
+ {
+ m_pExtProvider = pJP;
+ }
+ ICodec_ScanlineDecoder* CreateDecoder(FX_LPCBYTE src_buf, FX_DWORD src_size,
+ int width, int height, int nComps, FX_BOOL ColorTransform);
+ FX_BOOL LoadInfo(FX_LPCBYTE src_buf, FX_DWORD src_size, int& width, int& height,
+ int& num_components, int& bits_per_components, FX_BOOL& color_transform,
+ FX_LPBYTE* icc_buf_ptr, FX_DWORD* icc_length);
+ FX_BOOL Encode(const CFX_DIBSource* pSource, FX_LPBYTE& dest_buf, FX_STRSIZE& dest_size, int quality, FX_LPCBYTE icc_buf, FX_DWORD icc_length);
+ virtual void* Start();
+ virtual void Finish(void* pContext);
+ virtual void Input(void* pContext, FX_LPCBYTE src_buf, FX_DWORD src_size);
+ virtual int ReadHeader(void* pContext, int* width, int* height, int* nComps);
+ virtual FX_BOOL StartScanline(void* pContext, int down_scale);
+ virtual FX_BOOL ReadScanline(void* pContext, FX_LPBYTE dest_buf);
+ virtual FX_DWORD GetAvailInput(void* pContext, FX_LPBYTE* avail_buf_ptr);
+protected:
+ IFX_JpegProvider* m_pExtProvider;
+};
+class CCodec_IccModule : public ICodec_IccModule
+{
+public:
+ virtual IccCS GetProfileCS(FX_LPCBYTE pProfileData, unsigned int dwProfileSize);
+ virtual IccCS GetProfileCS(IFX_FileRead* pFile);
+ virtual FX_LPVOID CreateTransform(ICodec_IccModule::IccParam* pInputParam,
+ ICodec_IccModule::IccParam* pOutputParam,
+ ICodec_IccModule::IccParam* pProofParam = NULL,
+ FX_DWORD dwIntent = Icc_INTENT_PERCEPTUAL,
+ FX_DWORD dwFlag = Icc_FLAGS_DEFAULT,
+ FX_DWORD dwPrfIntent = Icc_INTENT_ABSOLUTE_COLORIMETRIC,
+ FX_DWORD dwPrfFlag = Icc_FLAGS_SOFTPROOFING
+ );
+ virtual FX_LPVOID CreateTransform_sRGB(FX_LPCBYTE pProfileData, unsigned int dwProfileSize, int nComponents, int intent = 0,
+ FX_DWORD dwSrcFormat = Icc_FORMAT_DEFAULT);
+ virtual FX_LPVOID CreateTransform_CMYK(FX_LPCBYTE pSrcProfileData, unsigned int dwSrcProfileSize, int nSrcComponents,
+ FX_LPCBYTE pDstProfileData, unsigned int dwDstProfileSize, int intent = 0,
+ FX_DWORD dwSrcFormat = Icc_FORMAT_DEFAULT,
+ FX_DWORD dwDstFormat = Icc_FORMAT_DEFAULT
+ );
+ virtual void DestroyTransform(FX_LPVOID pTransform);
+ virtual void Translate(FX_LPVOID pTransform, FX_FLOAT* pSrcValues, FX_FLOAT* pDestValues);
+ virtual void TranslateScanline(FX_LPVOID pTransform, FX_LPBYTE pDest, FX_LPCBYTE pSrc, int pixels);
+ virtual ~CCodec_IccModule();
+protected:
+ CFX_MapByteStringToPtr m_MapTranform;
+ CFX_MapByteStringToPtr m_MapProfile;
+ typedef enum {
+ Icc_CLASS_INPUT = 0,
+ Icc_CLASS_OUTPUT,
+ Icc_CLASS_PROOF,
+ Icc_CLASS_MAX
+ } Icc_CLASS;
+ FX_LPVOID CreateProfile(ICodec_IccModule::IccParam* pIccParam, Icc_CLASS ic, CFX_BinaryBuf* pTransformKey);
+};
+class CCodec_JpxModule : public ICodec_JpxModule
+{
+public:
+ CCodec_JpxModule();
+ void* CreateDecoder(FX_LPCBYTE src_buf, FX_DWORD src_size, FX_BOOL useColorSpace = FALSE);
+ void GetImageInfo(FX_LPVOID ctx, FX_DWORD& width, FX_DWORD& height,
+ FX_DWORD& codestream_nComps, FX_DWORD& output_nComps);
+ FX_BOOL Decode(void* ctx, FX_LPBYTE dest_data, int pitch, FX_BOOL bTranslateColor, FX_LPBYTE offsets);
+ void DestroyDecoder(void* ctx);
+};
+#include "../jbig2/JBig2_Context.h"
+class CPDF_Jbig2Interface : public CFX_Object, public CJBig2_Module
+{
+public:
+ virtual void *JBig2_Malloc(FX_DWORD dwSize)
+ {
+ return FX_Alloc(FX_BYTE, dwSize);
+ }
+ virtual void *JBig2_Malloc2(FX_DWORD num, FX_DWORD dwSize)
+ {
+ if (dwSize && num >= UINT_MAX / dwSize) {
+ return NULL;
+ }
+ return FX_Alloc(FX_BYTE, num * dwSize);
+ }
+ virtual void *JBig2_Malloc3(FX_DWORD num, FX_DWORD dwSize, FX_DWORD dwSize2)
+ {
+ if (dwSize2 && dwSize >= UINT_MAX / dwSize2) {
+ return NULL;
+ }
+ FX_DWORD size = dwSize2 * dwSize;
+ if (size && num >= UINT_MAX / size) {
+ return NULL;
+ }
+ return FX_Alloc(FX_BYTE, num * size);
+ }
+ virtual void *JBig2_Realloc(FX_LPVOID pMem, FX_DWORD dwSize)
+ {
+ return FX_Realloc(FX_BYTE, pMem, dwSize);
+ }
+ virtual void JBig2_Free(FX_LPVOID pMem)
+ {
+ FX_Free(pMem);
+ }
+};
+class CCodec_Jbig2Context : public CFX_Object
+{
+public:
+ CCodec_Jbig2Context();
+ ~CCodec_Jbig2Context() {};
+ IFX_FileRead* m_file_ptr;
+ FX_DWORD m_width;
+ FX_DWORD m_height;
+ FX_LPBYTE m_src_buf;
+ FX_DWORD m_src_size;
+ FX_LPCBYTE m_global_data;
+ FX_DWORD m_global_size;
+ FX_LPBYTE m_dest_buf;
+ FX_DWORD m_dest_pitch;
+ FX_BOOL m_bFileReader;
+ IFX_Pause* m_pPause;
+ CJBig2_Context* m_pContext;
+ CJBig2_Image* m_dest_image;
+};
+class CCodec_Jbig2Module : public ICodec_Jbig2Module
+{
+public:
+ CCodec_Jbig2Module() {};
+ ~CCodec_Jbig2Module();
+ FX_BOOL Decode(FX_DWORD width, FX_DWORD height, FX_LPCBYTE src_buf, FX_DWORD src_size,
+ FX_LPCBYTE global_data, FX_DWORD global_size, FX_LPBYTE dest_buf, FX_DWORD dest_pitch);
+ FX_BOOL Decode(IFX_FileRead* file_ptr,
+ FX_DWORD& width, FX_DWORD& height, FX_DWORD& pitch, FX_LPBYTE& dest_buf);
+ void* CreateJbig2Context();
+ FXCODEC_STATUS StartDecode(void* pJbig2Context, FX_DWORD width, FX_DWORD height, FX_LPCBYTE src_buf, FX_DWORD src_size,
+ FX_LPCBYTE global_data, FX_DWORD global_size, FX_LPBYTE dest_buf, FX_DWORD dest_pitch, IFX_Pause* pPause);
+
+ FXCODEC_STATUS StartDecode(void* pJbig2Context, IFX_FileRead* file_ptr,
+ FX_DWORD& width, FX_DWORD& height, FX_DWORD& pitch, FX_LPBYTE& dest_buf, IFX_Pause* pPause);
+ FXCODEC_STATUS ContinueDecode(void* pJbig2Context, IFX_Pause* pPause);
+ void DestroyJbig2Context(void* pJbig2Context);
+ CPDF_Jbig2Interface m_Module;
+private:
+};
diff --git a/core/src/fxcodec/codec/fx_codec.cpp b/core/src/fxcodec/codec/fx_codec.cpp new file mode 100644 index 0000000000..2f586ca94b --- /dev/null +++ b/core/src/fxcodec/codec/fx_codec.cpp @@ -0,0 +1,447 @@ +// 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 "../../../include/fxcodec/fx_codec.h"
+#include "codec_int.h"
+CCodec_ModuleMgr::CCodec_ModuleMgr()
+{
+ m_pBasicModule = FX_NEW CCodec_BasicModule;
+ m_pFaxModule = FX_NEW CCodec_FaxModule;
+ m_pJpegModule = FX_NEW CCodec_JpegModule;
+ m_pJpxModule = FX_NEW CCodec_JpxModule;
+ m_pJbig2Module = FX_NEW CCodec_Jbig2Module;
+ m_pIccModule = FX_NEW CCodec_IccModule;
+ m_pFlateModule = FX_NEW CCodec_FlateModule;
+}
+CCodec_ModuleMgr::~CCodec_ModuleMgr()
+{
+ delete m_pBasicModule;
+ delete m_pFaxModule;
+ delete m_pJpegModule;
+ delete m_pFlateModule;
+ delete m_pJpxModule;
+ delete m_pJbig2Module;
+ delete m_pIccModule;
+}
+void CCodec_ModuleMgr::InitJbig2Decoder()
+{
+}
+void CCodec_ModuleMgr::InitJpxDecoder()
+{
+}
+void CCodec_ModuleMgr::InitIccDecoder()
+{
+}
+CCodec_ScanlineDecoder::CCodec_ScanlineDecoder()
+{
+ m_NextLine = -1;
+ m_pDataCache = NULL;
+ m_pLastScanline = NULL;
+}
+CCodec_ScanlineDecoder::~CCodec_ScanlineDecoder()
+{
+ if (m_pDataCache) {
+ FX_Free(m_pDataCache);
+ }
+}
+FX_LPBYTE CCodec_ScanlineDecoder::GetScanline(int line)
+{
+ if (m_pDataCache && line < m_pDataCache->m_nCachedLines) {
+ return &m_pDataCache->m_Data + line * m_Pitch;
+ }
+ if (m_NextLine == line + 1) {
+ return m_pLastScanline;
+ }
+ if (m_NextLine < 0 || m_NextLine > line) {
+ if (!v_Rewind()) {
+ return NULL;
+ }
+ m_NextLine = 0;
+ }
+ while (m_NextLine < line) {
+ ReadNextLine();
+ m_NextLine ++;
+ }
+ m_pLastScanline = ReadNextLine();
+ m_NextLine ++;
+ return m_pLastScanline;
+}
+FX_BOOL CCodec_ScanlineDecoder::SkipToScanline(int line, IFX_Pause* pPause)
+{
+ if (m_pDataCache && line < m_pDataCache->m_nCachedLines) {
+ return FALSE;
+ }
+ if (m_NextLine == line || m_NextLine == line + 1) {
+ return FALSE;
+ }
+ if (m_NextLine < 0 || m_NextLine > line) {
+ v_Rewind();
+ m_NextLine = 0;
+ }
+ m_pLastScanline = NULL;
+ while (m_NextLine < line) {
+ m_pLastScanline = ReadNextLine();
+ m_NextLine ++;
+ if (pPause && pPause->NeedToPauseNow()) {
+ return TRUE;
+ }
+ }
+ return FALSE;
+}
+FX_LPBYTE CCodec_ScanlineDecoder::ReadNextLine()
+{
+ FX_LPBYTE pLine = v_GetNextLine();
+ if (pLine == NULL) {
+ return NULL;
+ }
+ if (m_pDataCache && m_NextLine == m_pDataCache->m_nCachedLines) {
+ FXSYS_memcpy32(&m_pDataCache->m_Data + m_NextLine * m_Pitch, pLine, m_Pitch);
+ m_pDataCache->m_nCachedLines ++;
+ }
+ return pLine;
+}
+void CCodec_ScanlineDecoder::DownScale(int dest_width, int dest_height)
+{
+ if (dest_width < 0) {
+ dest_width = -dest_width;
+ }
+ if (dest_height < 0) {
+ dest_height = -dest_height;
+ }
+ v_DownScale(dest_width, dest_height);
+ if (m_pDataCache) {
+ if (m_pDataCache->m_Height == m_OutputHeight && m_pDataCache->m_Width == m_OutputWidth) {
+ return;
+ }
+ FX_Free(m_pDataCache);
+ m_pDataCache = NULL;
+ }
+ m_pDataCache = (CCodec_ImageDataCache*)FXMEM_DefaultAlloc(
+ sizeof(CCodec_ImageDataCache) + m_Pitch * m_OutputHeight, FXMEM_NONLEAVE);
+ if (m_pDataCache == NULL) {
+ return;
+ }
+ m_pDataCache->m_Height = m_OutputHeight;
+ m_pDataCache->m_Width = m_OutputWidth;
+ m_pDataCache->m_nCachedLines = 0;
+}
+FX_BOOL CCodec_BasicModule::RunLengthEncode(const FX_BYTE* src_buf, FX_DWORD src_size, FX_LPBYTE& dest_buf,
+ FX_DWORD& dest_size)
+{
+ return FALSE;
+}
+extern "C" double FXstrtod(const char* nptr, char** endptr)
+{
+ double ret = 0.0;
+ const char* ptr = nptr;
+ const char* exp_ptr = NULL;
+ int e_number = 0,
+ e_signal = 0,
+ e_point = 0,
+ is_negative = 0;
+ int exp_ret = 0, exp_sig = 1,
+ fra_ret = 0, fra_count = 0, fra_base = 1;
+ if(nptr == NULL) {
+ return 0.0;
+ }
+ for (;; ptr++) {
+ if(!e_number && !e_point && (*ptr == '\t' || *ptr == ' ')) {
+ continue;
+ }
+ if(*ptr >= '0' && *ptr <= '9') {
+ if(!e_number) {
+ e_number = 1;
+ }
+ if(!e_point) {
+ ret *= 10;
+ ret += (*ptr - '0');
+ } else {
+ fra_count++;
+ fra_ret *= 10;
+ fra_ret += (*ptr - '0');
+ }
+ continue;
+ }
+ if(!e_point && *ptr == '.') {
+ e_point = 1;
+ continue;
+ }
+ if(!e_number && !e_point && !e_signal) {
+ switch(*ptr) {
+ case '-':
+ is_negative = 1;
+ case '+':
+ e_signal = 1;
+ continue;
+ }
+ }
+ if(e_number && (*ptr == 'e' || *ptr == 'E')) {
+#define EXPONENT_DETECT(ptr) \
+ for(;;ptr++){ \
+ if(*ptr < '0' || *ptr > '9'){ \
+ if(endptr) *endptr = (char*)ptr; \
+ break; \
+ }else{ \
+ exp_ret *= 10; \
+ exp_ret += (*ptr - '0'); \
+ continue; \
+ } \
+ }
+ exp_ptr = ptr++;
+ if(*ptr == '+' || *ptr == '-') {
+ exp_sig = (*ptr++ == '+') ? 1 : -1;
+ if(*ptr < '0' || *ptr > '9') {
+ if(endptr) {
+ *endptr = (char*)exp_ptr;
+ }
+ break;
+ }
+ EXPONENT_DETECT(ptr);
+ } else if(*ptr >= '0' && *ptr <= '9') {
+ EXPONENT_DETECT(ptr);
+ } else {
+ if(endptr) {
+ *endptr = (char*)exp_ptr;
+ }
+ break;
+ }
+#undef EXPONENT_DETECT
+ break;
+ }
+ if(ptr != nptr && !e_number) {
+ if(endptr) {
+ *endptr = (char*)nptr;
+ }
+ break;
+ }
+ if(endptr) {
+ *endptr = (char*)ptr;
+ }
+ break;
+ }
+ while(fra_count--) {
+ fra_base *= 10;
+ }
+ ret += (double)fra_ret / (double)fra_base;
+ if(exp_sig == 1) {
+ while(exp_ret--) {
+ ret *= 10.0;
+ }
+ } else {
+ while(exp_ret--) {
+ ret /= 10.0;
+ }
+ }
+ return is_negative ? -ret : ret;
+}
+FX_BOOL CCodec_BasicModule::A85Encode(const FX_BYTE* src_buf, FX_DWORD src_size, FX_LPBYTE& dest_buf,
+ FX_DWORD& dest_size)
+{
+ return FALSE;
+}
+CCodec_ModuleMgr* CCodec_ModuleMgr::Create()
+{
+ return FX_NEW CCodec_ModuleMgr;
+}
+void CCodec_ModuleMgr::Destroy()
+{
+ delete this;
+}
+class CCodec_RLScanlineDecoder : public CCodec_ScanlineDecoder
+{
+public:
+ CCodec_RLScanlineDecoder();
+ virtual ~CCodec_RLScanlineDecoder();
+ FX_BOOL Create(FX_LPCBYTE src_buf, FX_DWORD src_size, int width, int height, int nComps, int bpc);
+ virtual void v_DownScale(int dest_width, int dest_height) {}
+ virtual FX_BOOL v_Rewind();
+ virtual FX_LPBYTE v_GetNextLine();
+ virtual FX_DWORD GetSrcOffset()
+ {
+ return m_SrcOffset;
+ }
+protected:
+ FX_BOOL CheckDestSize();
+ void GetNextOperator();
+ void UpdateOperator(FX_BYTE used_bytes);
+
+ FX_LPBYTE m_pScanline;
+ FX_LPCBYTE m_pSrcBuf;
+ FX_DWORD m_SrcSize;
+ FX_DWORD m_dwLineBytes;
+ FX_DWORD m_SrcOffset;
+ FX_BOOL m_bEOD;
+ FX_BYTE m_Operator;
+};
+CCodec_RLScanlineDecoder::CCodec_RLScanlineDecoder()
+ : m_pScanline(NULL)
+ , m_pSrcBuf(NULL)
+ , m_SrcSize(0)
+ , m_dwLineBytes(0)
+ , m_SrcOffset(0)
+ , m_bEOD(FALSE)
+ , m_Operator(0)
+{
+}
+CCodec_RLScanlineDecoder::~CCodec_RLScanlineDecoder()
+{
+ if (m_pScanline) {
+ FX_Free(m_pScanline);
+ }
+}
+FX_BOOL CCodec_RLScanlineDecoder::CheckDestSize()
+{
+ FX_DWORD i = 0;
+ FX_DWORD old_size = 0;
+ FX_DWORD dest_size = 0;
+ while (i < m_SrcSize) {
+ if (m_pSrcBuf[i] < 128) {
+ old_size = dest_size;
+ dest_size += m_pSrcBuf[i] + 1;
+ if (dest_size < old_size) {
+ return FALSE;
+ }
+ i += m_pSrcBuf[i] + 2;
+ } else if (m_pSrcBuf[i] > 128) {
+ old_size = dest_size;
+ dest_size += 257 - m_pSrcBuf[i];
+ if (dest_size < old_size) {
+ return FALSE;
+ }
+ i += 2;
+ } else {
+ break;
+ }
+ }
+ if (((FX_DWORD)m_OrigWidth * m_nComps * m_bpc * m_OrigHeight + 7) / 8 > dest_size) {
+ return FALSE;
+ }
+ return TRUE;
+}
+FX_BOOL CCodec_RLScanlineDecoder::Create(FX_LPCBYTE src_buf, FX_DWORD src_size, int width, int height, int nComps, int bpc)
+{
+ m_pSrcBuf = src_buf;
+ m_SrcSize = src_size;
+ m_OutputWidth = m_OrigWidth = width;
+ m_OutputHeight = m_OrigHeight = height;
+ m_nComps = nComps;
+ m_bpc = bpc;
+ m_bColorTransformed = FALSE;
+ m_DownScale = 1;
+ m_Pitch = (width * nComps * bpc + 31) / 32 * 4;
+ m_dwLineBytes = (width * nComps * bpc + 7) / 8;
+ m_pScanline = FX_Alloc(FX_BYTE, m_Pitch);
+ if (m_pScanline == NULL) {
+ return FALSE;
+ }
+ FXSYS_memset32(m_pScanline, 0, m_Pitch);
+ return CheckDestSize();
+}
+FX_BOOL CCodec_RLScanlineDecoder::v_Rewind()
+{
+ FXSYS_memset32(m_pScanline, 0, m_Pitch);
+ m_SrcOffset = 0;
+ m_bEOD = FALSE;
+ m_Operator = 0;
+ return TRUE;
+}
+FX_LPBYTE CCodec_RLScanlineDecoder::v_GetNextLine()
+{
+ if (m_SrcOffset == 0) {
+ GetNextOperator();
+ } else {
+ if (m_bEOD) {
+ return NULL;
+ }
+ }
+ FXSYS_memset32(m_pScanline, 0, m_Pitch);
+ FX_DWORD col_pos = 0;
+ FX_BOOL eol = FALSE;
+ while (m_SrcOffset < m_SrcSize && !eol) {
+ if (m_Operator < 128) {
+ FX_DWORD copy_len = m_Operator + 1;
+ if (col_pos + copy_len >= m_dwLineBytes) {
+ copy_len = m_dwLineBytes - col_pos;
+ eol = TRUE;
+ }
+ if (copy_len >= m_SrcSize - m_SrcOffset) {
+ copy_len = m_SrcSize - m_SrcOffset;
+ m_bEOD = TRUE;
+ }
+ FXSYS_memcpy32(m_pScanline + col_pos, m_pSrcBuf + m_SrcOffset, copy_len);
+ col_pos += copy_len;
+ UpdateOperator((FX_BYTE)copy_len);
+ } else if (m_Operator > 128) {
+ int fill = 0;
+ if (m_SrcOffset - 1 < m_SrcSize - 1) {
+ fill = m_pSrcBuf[m_SrcOffset];
+ }
+ FX_DWORD duplicate_len = 257 - m_Operator;
+ if (col_pos + duplicate_len >= m_dwLineBytes) {
+ duplicate_len = m_dwLineBytes - col_pos;
+ eol = TRUE;
+ }
+ FXSYS_memset8(m_pScanline + col_pos, fill, duplicate_len);
+ col_pos += duplicate_len;
+ UpdateOperator((FX_BYTE)duplicate_len);
+ } else {
+ m_bEOD = TRUE;
+ break;
+ }
+ }
+ return m_pScanline;
+}
+void CCodec_RLScanlineDecoder::GetNextOperator()
+{
+ if (m_SrcOffset >= m_SrcSize) {
+ m_Operator = 128;
+ return;
+ }
+ m_Operator = m_pSrcBuf[m_SrcOffset];
+ m_SrcOffset ++;
+}
+void CCodec_RLScanlineDecoder::UpdateOperator(FX_BYTE used_bytes)
+{
+ if (used_bytes == 0) {
+ return;
+ }
+ if (m_Operator < 128) {
+ FXSYS_assert((FX_DWORD)m_Operator + 1 >= used_bytes);
+ if (used_bytes == m_Operator + 1) {
+ m_SrcOffset += used_bytes;
+ GetNextOperator();
+ return;
+ }
+ m_Operator -= used_bytes;
+ m_SrcOffset += used_bytes;
+ if (m_SrcOffset >= m_SrcSize) {
+ m_Operator = 128;
+ }
+ return;
+ }
+ FX_BYTE count = 257 - m_Operator;
+ FXSYS_assert((FX_DWORD)count >= used_bytes);
+ if (used_bytes == count) {
+ m_SrcOffset ++;
+ GetNextOperator();
+ return;
+ }
+ count -= used_bytes;
+ m_Operator = 257 - count;
+}
+ICodec_ScanlineDecoder* CCodec_BasicModule::CreateRunLengthDecoder(FX_LPCBYTE src_buf, FX_DWORD src_size, int width, int height,
+ int nComps, int bpc)
+{
+ CCodec_RLScanlineDecoder* pRLScanlineDecoder = FX_NEW CCodec_RLScanlineDecoder;
+ if (pRLScanlineDecoder == NULL) {
+ return NULL;
+ }
+ if (!pRLScanlineDecoder->Create(src_buf, src_size, width, height, nComps, bpc)) {
+ delete pRLScanlineDecoder;
+ return NULL;
+ }
+ return pRLScanlineDecoder;
+}
diff --git a/core/src/fxcodec/codec/fx_codec_fax.cpp b/core/src/fxcodec/codec/fx_codec_fax.cpp new file mode 100644 index 0000000000..21c7deb076 --- /dev/null +++ b/core/src/fxcodec/codec/fx_codec_fax.cpp @@ -0,0 +1,968 @@ +// 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 "../../../include/fxcodec/fx_codec.h"
+#include "codec_int.h"
+extern const FX_BYTE OneLeadPos[256];
+extern const FX_BYTE ZeroLeadPos[256];
+int _FindBit(const FX_BYTE* data_buf, int max_pos, int start_pos, int bit)
+{
+ if (start_pos >= max_pos) {
+ return max_pos;
+ }
+ FX_LPCBYTE leading_pos = bit ? OneLeadPos : ZeroLeadPos;
+ if (start_pos % 8) {
+ FX_BYTE data = data_buf[start_pos / 8];
+ if (bit) {
+ data &= 0xff >> (start_pos % 8);
+ } else {
+ data |= 0xff << (8 - start_pos % 8);
+ }
+ if (leading_pos[data] < 8) {
+ return start_pos / 8 * 8 + leading_pos[data];
+ }
+ start_pos += 7;
+ }
+ FX_BYTE skip = bit ? 0x00 : 0xff;
+ int byte_pos = start_pos / 8;
+ int max_byte = (max_pos + 7) / 8;
+ while (byte_pos < max_byte) {
+ if (data_buf[byte_pos] != skip) {
+ break;
+ }
+ byte_pos ++;
+ }
+ if (byte_pos == max_byte) {
+ return max_pos;
+ }
+ int pos = leading_pos[data_buf[byte_pos]] + byte_pos * 8;
+ if (pos > max_pos) {
+ pos = max_pos;
+ }
+ return pos;
+}
+void _FaxG4FindB1B2(const FX_BYTE* ref_buf, int columns, int a0, FX_BOOL a0color, int& b1, int& b2)
+{
+ if (a0color) {
+ a0color = 1;
+ }
+ FX_BYTE first_bit = (a0 < 0) ? 1 : ((ref_buf[a0 / 8] & (1 << (7 - a0 % 8))) != 0);
+ b1 = _FindBit(ref_buf, columns, a0 + 1, !first_bit);
+ if (b1 >= columns) {
+ b1 = b2 = columns;
+ return;
+ }
+ if (first_bit == !a0color) {
+ b1 = _FindBit(ref_buf, columns, b1 + 1, first_bit);
+ first_bit = !first_bit;
+ }
+ if (b1 >= columns) {
+ b1 = b2 = columns;
+ return;
+ }
+ b2 = _FindBit(ref_buf, columns, b1 + 1, first_bit);
+}
+void _FaxFillBits(FX_LPBYTE dest_buf, int columns, int startpos, int endpos)
+{
+ if (startpos < 0) {
+ startpos = 0;
+ }
+ if (endpos < 0) {
+ endpos = 0;
+ }
+ if (endpos >= columns) {
+ endpos = columns;
+ }
+ if (startpos >= endpos) {
+ return;
+ }
+ int first_byte = startpos / 8;
+ int last_byte = (endpos - 1) / 8;
+ if (first_byte == last_byte) {
+ for (int i = startpos % 8; i <= (endpos - 1) % 8; i ++) {
+ dest_buf[first_byte] -= 1 << (7 - i);
+ }
+ return;
+ }
+ int i;
+ for (i = startpos % 8; i < 8; i ++) {
+ dest_buf[first_byte] -= 1 << (7 - i);
+ }
+ for (i = 0; i <= (endpos - 1) % 8; i ++) {
+ dest_buf[last_byte] -= 1 << (7 - i);
+ }
+ if (last_byte > first_byte + 1) {
+ FXSYS_memset32(dest_buf + first_byte + 1, 0, last_byte - first_byte - 1);
+ }
+}
+#define NEXTBIT src_buf[bitpos/8] & (1 << (7-bitpos%8)); bitpos ++;
+#define ADDBIT(code, bit) code = code << 1; if (bit) code ++;
+#define GETBIT(bitpos) src_buf[bitpos/8] & (1 << (7-bitpos%8))
+static const FX_BYTE FaxBlackRunIns[] = {
+ 0,
+ 2,
+ 0x02, 3, 0,
+ 0x03, 2, 0,
+ 2,
+ 0x02, 1, 0,
+ 0x03, 4, 0,
+ 2,
+ 0x02, 6, 0,
+ 0x03, 5, 0,
+ 1,
+ 0x03, 7, 0,
+ 2,
+ 0x04, 9, 0,
+ 0x05, 8, 0,
+ 3,
+ 0x04, 10, 0,
+ 0x05, 11, 0,
+ 0x07, 12, 0,
+ 2,
+ 0x04, 13, 0,
+ 0x07, 14, 0,
+ 1,
+ 0x18, 15, 0,
+ 5,
+ 0x08, 18, 0,
+ 0x0f, 64, 0,
+ 0x17, 16, 0,
+ 0x18, 17, 0,
+ 0x37, 0, 0,
+ 10,
+ 0x08, 0x00, 0x07,
+ 0x0c, 0x40, 0x07,
+ 0x0d, 0x80, 0x07,
+ 0x17, 24, 0,
+ 0x18, 25, 0,
+ 0x28, 23, 0,
+ 0x37, 22, 0,
+ 0x67, 19, 0,
+ 0x68, 20, 0,
+ 0x6c, 21, 0,
+ 54,
+ 0x12, 1984 % 256, 1984 / 256,
+ 0x13, 2048 % 256, 2048 / 256,
+ 0x14, 2112 % 256, 2112 / 256,
+ 0x15, 2176 % 256, 2176 / 256,
+ 0x16, 2240 % 256, 2240 / 256,
+ 0x17, 2304 % 256, 2304 / 256,
+ 0x1c, 2368 % 256, 2368 / 256,
+ 0x1d, 2432 % 256, 2432 / 256,
+ 0x1e, 2496 % 256, 2496 / 256,
+ 0x1f, 2560 % 256, 2560 / 256,
+ 0x24, 52, 0,
+ 0x27, 55, 0,
+ 0x28, 56, 0,
+ 0x2b, 59, 0,
+ 0x2c, 60, 0,
+ 0x33, 320 % 256, 320 / 256,
+ 0x34, 384 % 256, 384 / 256,
+ 0x35, 448 % 256, 448 / 256,
+ 0x37, 53, 0,
+ 0x38, 54, 0,
+ 0x52, 50, 0,
+ 0x53, 51, 0,
+ 0x54, 44, 0,
+ 0x55, 45, 0,
+ 0x56, 46, 0,
+ 0x57, 47, 0,
+ 0x58, 57, 0,
+ 0x59, 58, 0,
+ 0x5a, 61, 0,
+ 0x5b, 256 % 256, 256 / 256,
+ 0x64, 48, 0,
+ 0x65, 49, 0,
+ 0x66, 62, 0,
+ 0x67, 63, 0,
+ 0x68, 30, 0,
+ 0x69, 31, 0,
+ 0x6a, 32, 0,
+ 0x6b, 33, 0,
+ 0x6c, 40, 0,
+ 0x6d, 41, 0,
+ 0xc8, 128, 0,
+ 0xc9, 192, 0,
+ 0xca, 26, 0,
+ 0xcb, 27, 0,
+ 0xcc, 28, 0,
+ 0xcd, 29, 0,
+ 0xd2, 34, 0,
+ 0xd3, 35, 0,
+ 0xd4, 36, 0,
+ 0xd5, 37, 0,
+ 0xd6, 38, 0,
+ 0xd7, 39, 0,
+ 0xda, 42, 0,
+ 0xdb, 43, 0,
+ 20,
+ 0x4a, 640 % 256, 640 / 256,
+ 0x4b, 704 % 256, 704 / 256,
+ 0x4c, 768 % 256, 768 / 256,
+ 0x4d, 832 % 256, 832 / 256,
+ 0x52, 1280 % 256, 1280 / 256,
+ 0x53, 1344 % 256, 1344 / 256,
+ 0x54, 1408 % 256, 1408 / 256,
+ 0x55, 1472 % 256, 1472 / 256,
+ 0x5a, 1536 % 256, 1536 / 256,
+ 0x5b, 1600 % 256, 1600 / 256,
+ 0x64, 1664 % 256, 1664 / 256,
+ 0x65, 1728 % 256, 1728 / 256,
+ 0x6c, 512 % 256, 512 / 256,
+ 0x6d, 576 % 256, 576 / 256,
+ 0x72, 896 % 256, 896 / 256,
+ 0x73, 960 % 256, 960 / 256,
+ 0x74, 1024 % 256, 1024 / 256,
+ 0x75, 1088 % 256, 1088 / 256,
+ 0x76, 1152 % 256, 1152 / 256,
+ 0x77, 1216 % 256, 1216 / 256,
+ 0xff
+};
+static const FX_BYTE FaxWhiteRunIns[] = {
+ 0,
+ 0,
+ 0,
+ 6,
+ 0x07, 2, 0,
+ 0x08, 3, 0,
+ 0x0B, 4, 0,
+ 0x0C, 5, 0,
+ 0x0E, 6, 0,
+ 0x0F, 7, 0,
+ 6,
+ 0x07, 10, 0,
+ 0x08, 11, 0,
+ 0x12, 128, 0,
+ 0x13, 8, 0,
+ 0x14, 9, 0,
+ 0x1b, 64, 0,
+ 9,
+ 0x03, 13, 0,
+ 0x07, 1, 0,
+ 0x08, 12, 0,
+ 0x17, 192, 0,
+ 0x18, 1664 % 256, 1664 / 256,
+ 0x2a, 16, 0,
+ 0x2B, 17, 0,
+ 0x34, 14, 0,
+ 0x35, 15, 0,
+ 12,
+ 0x03, 22, 0,
+ 0x04, 23, 0,
+ 0x08, 20, 0,
+ 0x0c, 19, 0,
+ 0x13, 26, 0,
+ 0x17, 21, 0,
+ 0x18, 28, 0,
+ 0x24, 27, 0,
+ 0x27, 18, 0,
+ 0x28, 24, 0,
+ 0x2B, 25, 0,
+ 0x37, 256 % 256, 256 / 256,
+ 42,
+ 0x02, 29, 0,
+ 0x03, 30, 0,
+ 0x04, 45, 0,
+ 0x05, 46, 0,
+ 0x0a, 47, 0,
+ 0x0b, 48, 0,
+ 0x12, 33, 0,
+ 0x13, 34, 0,
+ 0x14, 35, 0,
+ 0x15, 36, 0,
+ 0x16, 37, 0,
+ 0x17, 38, 0,
+ 0x1a, 31, 0,
+ 0x1b, 32, 0,
+ 0x24, 53, 0,
+ 0x25, 54, 0,
+ 0x28, 39, 0,
+ 0x29, 40, 0,
+ 0x2a, 41, 0,
+ 0x2b, 42, 0,
+ 0x2c, 43, 0,
+ 0x2d, 44, 0,
+ 0x32, 61, 0,
+ 0x33, 62, 0,
+ 0x34, 63, 0,
+ 0x35, 0, 0,
+ 0x36, 320 % 256, 320 / 256,
+ 0x37, 384 % 256, 384 / 256,
+ 0x4a, 59, 0,
+ 0x4b, 60, 0,
+ 0x52, 49, 0,
+ 0x53, 50, 0,
+ 0x54, 51, 0,
+ 0x55, 52, 0,
+ 0x58, 55, 0,
+ 0x59, 56, 0,
+ 0x5a, 57, 0,
+ 0x5b, 58, 0,
+ 0x64, 448 % 256, 448 / 256,
+ 0x65, 512 % 256, 512 / 256,
+ 0x67, 640 % 256, 640 / 256,
+ 0x68, 576 % 256, 576 / 256,
+ 16,
+ 0x98, 1472 % 256, 1472 / 256,
+ 0x99, 1536 % 256, 1536 / 256,
+ 0x9a, 1600 % 256, 1600 / 256,
+ 0x9b, 1728 % 256, 1728 / 256,
+ 0xcc, 704 % 256, 704 / 256,
+ 0xcd, 768 % 256, 768 / 256,
+ 0xd2, 832 % 256, 832 / 256,
+ 0xd3, 896 % 256, 896 / 256,
+ 0xd4, 960 % 256, 960 / 256,
+ 0xd5, 1024 % 256, 1024 / 256,
+ 0xd6, 1088 % 256, 1088 / 256,
+ 0xd7, 1152 % 256, 1152 / 256,
+ 0xd8, 1216 % 256, 1216 / 256,
+ 0xd9, 1280 % 256, 1280 / 256,
+ 0xda, 1344 % 256, 1344 / 256,
+ 0xdb, 1408 % 256, 1408 / 256,
+ 0,
+ 3,
+ 0x08, 1792 % 256, 1792 / 256,
+ 0x0c, 1856 % 256, 1856 / 256,
+ 0x0d, 1920 % 256, 1920 / 256,
+ 10,
+ 0x12, 1984 % 256, 1984 / 256,
+ 0x13, 2048 % 256, 2048 / 256,
+ 0x14, 2112 % 256, 2112 / 256,
+ 0x15, 2176 % 256, 2176 / 256,
+ 0x16, 2240 % 256, 2240 / 256,
+ 0x17, 2304 % 256, 2304 / 256,
+ 0x1c, 2368 % 256, 2368 / 256,
+ 0x1d, 2432 % 256, 2432 / 256,
+ 0x1e, 2496 % 256, 2496 / 256,
+ 0x1f, 2560 % 256, 2560 / 256,
+ 0xff,
+};
+int _FaxGetRun(FX_LPCBYTE ins_array, const FX_BYTE* src_buf, int& bitpos, int bitsize)
+{
+ FX_DWORD code = 0;
+ int ins_off = 0;
+ while (1) {
+ FX_BYTE ins = ins_array[ins_off++];
+ if (ins == 0xff) {
+ return -1;
+ }
+ if (bitpos >= bitsize) {
+ return -1;
+ }
+ code <<= 1;
+ if (src_buf[bitpos / 8] & (1 << (7 - bitpos % 8))) {
+ code ++;
+ }
+ bitpos ++;
+ int next_off = ins_off + ins * 3;
+ for (; ins_off < next_off; ins_off += 3) {
+ if (ins_array[ins_off] == code) {
+ return ins_array[ins_off + 1] + ins_array[ins_off + 2] * 256;
+ }
+ }
+ }
+}
+FX_BOOL _FaxG4GetRow(const FX_BYTE* src_buf, int bitsize, int& bitpos, FX_LPBYTE dest_buf, const FX_BYTE* ref_buf, int columns)
+{
+ int a0 = -1, a0color = 1;
+ while (1) {
+ if (bitpos >= bitsize) {
+ return FALSE;
+ }
+ int a1, a2, b1, b2;
+ _FaxG4FindB1B2(ref_buf, columns, a0, a0color, b1, b2);
+ FX_BOOL bit = NEXTBIT;
+ int v_delta = 0;
+ if (bit) {
+ } else {
+ if (bitpos >= bitsize) {
+ return FALSE;
+ }
+ FX_BOOL bit1 = NEXTBIT;
+ if (bitpos >= bitsize) {
+ return FALSE;
+ }
+ FX_BOOL bit2 = NEXTBIT;
+ if (bit1 && bit2) {
+ v_delta = 1;
+ } else if (bit1) {
+ v_delta = -1;
+ } else if (bit2) {
+ int run_len1 = 0;
+ while (1) {
+ int run = _FaxGetRun(a0color ? FaxWhiteRunIns : FaxBlackRunIns, src_buf, bitpos, bitsize);
+ run_len1 += run;
+ if (run < 64) {
+ break;
+ }
+ }
+ if (a0 < 0) {
+ run_len1 ++;
+ }
+ a1 = a0 + run_len1;
+ if (!a0color) {
+ _FaxFillBits(dest_buf, columns, a0, a1);
+ }
+ int run_len2 = 0;
+ while (1) {
+ int run = _FaxGetRun(a0color ? FaxBlackRunIns : FaxWhiteRunIns, src_buf, bitpos, bitsize);
+ run_len2 += run;
+ if (run < 64) {
+ break;
+ }
+ }
+ a2 = a1 + run_len2;
+ if (a0color) {
+ _FaxFillBits(dest_buf, columns, a1, a2);
+ }
+ a0 = a2;
+ if (a0 < columns) {
+ continue;
+ }
+ return TRUE;
+ } else {
+ if (bitpos >= bitsize) {
+ return FALSE;
+ }
+ bit = NEXTBIT;
+ if (bit) {
+ if (!a0color) {
+ _FaxFillBits(dest_buf, columns, a0, b2);
+ }
+ if (b2 >= columns) {
+ return TRUE;
+ }
+ a0 = b2;
+ continue;
+ } else {
+ if (bitpos >= bitsize) {
+ return FALSE;
+ }
+ FX_BOOL bit1 = NEXTBIT;
+ if (bitpos >= bitsize) {
+ return FALSE;
+ }
+ FX_BOOL bit2 = NEXTBIT;
+ if (bit1 && bit2) {
+ v_delta = 2;
+ } else if (bit1) {
+ v_delta = -2;
+ } else if (bit2) {
+ if (bitpos >= bitsize) {
+ return FALSE;
+ }
+ bit = NEXTBIT;
+ if (bit) {
+ v_delta = 3;
+ } else {
+ v_delta = -3;
+ }
+ } else {
+ if (bitpos >= bitsize) {
+ return FALSE;
+ }
+ bit = NEXTBIT;
+ if (bit) {
+ bitpos += 3;
+ continue;
+ } else {
+ bitpos += 5;
+ return TRUE;
+ }
+ }
+ }
+ }
+ }
+ a1 = b1 + v_delta;
+ if (!a0color) {
+ _FaxFillBits(dest_buf, columns, a0, a1);
+ }
+ if (a1 >= columns) {
+ return TRUE;
+ }
+ a0 = a1;
+ a0color = !a0color;
+ }
+}
+FX_BOOL _FaxSkipEOL(const FX_BYTE* src_buf, int bitsize, int& bitpos)
+{
+ int startbit = bitpos;
+ while (bitpos < bitsize) {
+ int bit = NEXTBIT;
+ if (bit) {
+ if (bitpos - startbit <= 11) {
+ bitpos = startbit;
+ }
+ return TRUE;
+ }
+ }
+ return FALSE;
+}
+FX_BOOL _FaxGet1DLine(const FX_BYTE* src_buf, int bitsize, int& bitpos, FX_LPBYTE dest_buf, int columns)
+{
+ int color = TRUE;
+ int startpos = 0;
+ while (1) {
+ if (bitpos >= bitsize) {
+ return FALSE;
+ }
+ int run_len = 0;
+ while (1) {
+ int run = _FaxGetRun(color ? FaxWhiteRunIns : FaxBlackRunIns, src_buf, bitpos, bitsize);
+ if (run < 0) {
+ while (bitpos < bitsize) {
+ int bit = NEXTBIT;
+ if (bit) {
+ return TRUE;
+ }
+ }
+ return FALSE;
+ }
+ run_len += run;
+ if (run < 64) {
+ break;
+ }
+ }
+ if (!color) {
+ _FaxFillBits(dest_buf, columns, startpos, startpos + run_len);
+ }
+ startpos += run_len;
+ if (startpos >= columns) {
+ break;
+ }
+ color = !color;
+ }
+ return TRUE;
+}
+class CCodec_FaxDecoder : public CCodec_ScanlineDecoder
+{
+public:
+ CCodec_FaxDecoder();
+ virtual ~CCodec_FaxDecoder();
+ FX_BOOL Create(FX_LPCBYTE src_buf, FX_DWORD src_size, int width, int height,
+ int K, FX_BOOL EndOfLine, FX_BOOL EncodedByteAlign, FX_BOOL BlackIs1, int Columns, int Rows);
+ virtual void v_DownScale(int dest_width, int dest_height) {}
+ virtual FX_BOOL v_Rewind();
+ virtual FX_LPBYTE v_GetNextLine();
+ virtual FX_DWORD GetSrcOffset();
+ int m_Encoding, m_bEndOfLine, m_bByteAlign, m_bBlack;
+ int bitpos;
+ FX_LPCBYTE m_pSrcBuf;
+ FX_DWORD m_SrcSize;
+ FX_LPBYTE m_pScanlineBuf, m_pRefBuf;
+};
+CCodec_FaxDecoder::CCodec_FaxDecoder()
+{
+ m_pScanlineBuf = NULL;
+ m_pRefBuf = NULL;
+}
+CCodec_FaxDecoder::~CCodec_FaxDecoder()
+{
+ if (m_pScanlineBuf) {
+ FX_Free(m_pScanlineBuf);
+ }
+ if (m_pRefBuf) {
+ FX_Free(m_pRefBuf);
+ }
+}
+FX_BOOL CCodec_FaxDecoder::Create(FX_LPCBYTE src_buf, FX_DWORD src_size, int width, int height,
+ int K, FX_BOOL EndOfLine, FX_BOOL EncodedByteAlign, FX_BOOL BlackIs1, int Columns, int Rows)
+{
+ m_Encoding = K;
+ m_bEndOfLine = EndOfLine;
+ m_bByteAlign = EncodedByteAlign;
+ m_bBlack = BlackIs1;
+ m_OrigWidth = Columns;
+ m_OrigHeight = Rows;
+ if (m_OrigWidth == 0) {
+ m_OrigWidth = width;
+ }
+ if (m_OrigHeight == 0) {
+ m_OrigHeight = height;
+ }
+ m_Pitch = (m_OrigWidth + 31) / 32 * 4;
+ m_OutputWidth = m_OrigWidth;
+ m_OutputHeight = m_OrigHeight;
+ m_pScanlineBuf = FX_Alloc(FX_BYTE, m_Pitch);
+ if (m_pScanlineBuf == NULL) {
+ return FALSE;
+ }
+ m_pRefBuf = FX_Alloc(FX_BYTE, m_Pitch);
+ if (m_pRefBuf == NULL) {
+ return FALSE;
+ }
+ m_pSrcBuf = src_buf;
+ m_SrcSize = src_size;
+ m_nComps = 1;
+ m_bpc = 1;
+ m_bColorTransformed = FALSE;
+ return TRUE;
+}
+FX_BOOL CCodec_FaxDecoder::v_Rewind()
+{
+ FXSYS_memset8(m_pRefBuf, 0xff, m_Pitch);
+ bitpos = 0;
+ return TRUE;
+}
+FX_LPBYTE CCodec_FaxDecoder::v_GetNextLine()
+{
+ int bitsize = m_SrcSize * 8;
+ _FaxSkipEOL(m_pSrcBuf, bitsize, bitpos);
+ if (bitpos >= bitsize) {
+ return NULL;
+ }
+ FXSYS_memset8(m_pScanlineBuf, 0xff, m_Pitch);
+ if (m_Encoding < 0) {
+ _FaxG4GetRow(m_pSrcBuf, bitsize, bitpos, m_pScanlineBuf, m_pRefBuf, m_OrigWidth);
+ FXSYS_memcpy32(m_pRefBuf, m_pScanlineBuf, m_Pitch);
+ } else if (m_Encoding == 0) {
+ _FaxGet1DLine(m_pSrcBuf, bitsize, bitpos, m_pScanlineBuf, m_OrigWidth);
+ } else {
+ FX_BOOL bNext1D = m_pSrcBuf[bitpos / 8] & (1 << (7 - bitpos % 8));
+ bitpos ++;
+ if (bNext1D) {
+ _FaxGet1DLine(m_pSrcBuf, bitsize, bitpos, m_pScanlineBuf, m_OrigWidth);
+ } else {
+ _FaxG4GetRow(m_pSrcBuf, bitsize, bitpos, m_pScanlineBuf, m_pRefBuf, m_OrigWidth);
+ }
+ FXSYS_memcpy32(m_pRefBuf, m_pScanlineBuf, m_Pitch);
+ }
+ if (m_bEndOfLine) {
+ _FaxSkipEOL(m_pSrcBuf, bitsize, bitpos);
+ }
+ if (m_bByteAlign && bitpos < bitsize) {
+ int bitpos0 = bitpos;
+ int bitpos1 = (bitpos + 7) / 8 * 8;
+ while (m_bByteAlign && bitpos0 < bitpos1) {
+ int bit = m_pSrcBuf[bitpos0 / 8] & (1 << (7 - bitpos0 % 8));
+ if (bit != 0) {
+ m_bByteAlign = FALSE;
+ } else {
+ bitpos0 ++;
+ }
+ }
+ if (m_bByteAlign) {
+ bitpos = bitpos1;
+ }
+ }
+ if (m_bBlack) {
+ for (int i = 0; i < m_Pitch; i ++) {
+ m_pScanlineBuf[i] = ~m_pScanlineBuf[i];
+ }
+ }
+ return m_pScanlineBuf;
+}
+FX_DWORD CCodec_FaxDecoder::GetSrcOffset()
+{
+ FX_DWORD ret = (bitpos + 7) / 8;
+ if (ret > m_SrcSize) {
+ ret = m_SrcSize;
+ }
+ return ret;
+}
+extern "C" {
+ void _FaxG4Decode(void*, FX_LPCBYTE src_buf, FX_DWORD src_size, int* pbitpos, FX_LPBYTE dest_buf, int width, int height, int pitch)
+ {
+ if (pitch == 0) {
+ pitch = (width + 7) / 8;
+ }
+ FX_LPBYTE ref_buf = FX_Alloc(FX_BYTE, pitch);
+ if (ref_buf == NULL) {
+ return;
+ }
+ FXSYS_memset8(ref_buf, 0xff, pitch);
+ int bitpos = *pbitpos;
+ for (int iRow = 0; iRow < height; iRow ++) {
+ FX_LPBYTE line_buf = dest_buf + iRow * pitch;
+ FXSYS_memset8(line_buf, 0xff, pitch);
+ _FaxG4GetRow(src_buf, src_size << 3, bitpos, line_buf, ref_buf, width);
+ FXSYS_memcpy32(ref_buf, line_buf, pitch);
+ }
+ FX_Free(ref_buf);
+ *pbitpos = bitpos;
+ }
+};
+static const FX_BYTE BlackRunTerminator[128] = {
+ 0x37, 10, 0x02, 3, 0x03, 2, 0x02, 2, 0x03, 3, 0x03, 4, 0x02, 4, 0x03, 5,
+ 0x05, 6, 0x04, 6, 0x04, 7, 0x05, 7, 0x07, 7, 0x04, 8, 0x07, 8, 0x18, 9,
+ 0x17, 10, 0x18, 10, 0x08, 10, 0x67, 11, 0x68, 11, 0x6c, 11, 0x37, 11, 0x28, 11,
+ 0x17, 11, 0x18, 11, 0xca, 12, 0xcb, 12, 0xcc, 12, 0xcd, 12, 0x68, 12, 0x69, 12,
+ 0x6a, 12, 0x6b, 12, 0xd2, 12, 0xd3, 12, 0xd4, 12, 0xd5, 12, 0xd6, 12, 0xd7, 12,
+ 0x6c, 12, 0x6d, 12, 0xda, 12, 0xdb, 12, 0x54, 12, 0x55, 12, 0x56, 12, 0x57, 12,
+ 0x64, 12, 0x65, 12, 0x52, 12, 0x53, 12, 0x24, 12, 0x37, 12, 0x38, 12, 0x27, 12,
+ 0x28, 12, 0x58, 12, 0x59, 12, 0x2b, 12, 0x2c, 12, 0x5a, 12, 0x66, 12, 0x67, 12,
+};
+static const FX_BYTE BlackRunMarkup[80] = {
+ 0x0f, 10, 0xc8, 12, 0xc9, 12, 0x5b, 12, 0x33, 12, 0x34, 12, 0x35, 12, 0x6c, 13,
+ 0x6d, 13, 0x4a, 13, 0x4b, 13, 0x4c, 13, 0x4d, 13, 0x72, 13, 0x73, 13, 0x74, 13,
+ 0x75, 13, 0x76, 13, 0x77, 13, 0x52, 13, 0x53, 13, 0x54, 13, 0x55, 13, 0x5a, 13,
+ 0x5b, 13, 0x64, 13, 0x65, 13, 0x08, 11, 0x0c, 11, 0x0d, 11, 0x12, 12, 0x13, 12,
+ 0x14, 12, 0x15, 12, 0x16, 12, 0x17, 12, 0x1c, 12, 0x1d, 12, 0x1e, 12, 0x1f, 12,
+};
+static const FX_BYTE WhiteRunTerminator[128] = {
+ 0x35, 8,
+ 0x07, 6,
+ 0x07, 4,
+ 0x08, 4,
+ 0x0B, 4,
+ 0x0C, 4,
+ 0x0E, 4,
+ 0x0F, 4,
+ 0x13, 5,
+ 0x14, 5,
+ 0x07, 5,
+ 0x08, 5,
+ 0x08, 6,
+ 0x03, 6,
+ 0x34, 6,
+ 0x35, 6,
+ 0x2a, 6,
+ 0x2B, 6,
+ 0x27, 7,
+ 0x0c, 7,
+ 0x08, 7,
+ 0x17, 7,
+ 0x03, 7,
+ 0x04, 7,
+ 0x28, 7,
+ 0x2B, 7,
+ 0x13, 7,
+ 0x24, 7,
+ 0x18, 7,
+ 0x02, 8,
+ 0x03, 8,
+ 0x1a, 8,
+ 0x1b, 8,
+ 0x12, 8,
+ 0x13, 8,
+ 0x14, 8,
+ 0x15, 8,
+ 0x16, 8,
+ 0x17, 8,
+ 0x28, 8,
+ 0x29, 8,
+ 0x2a, 8,
+ 0x2b, 8,
+ 0x2c, 8,
+ 0x2d, 8,
+ 0x04, 8,
+ 0x05, 8,
+ 0x0a, 8,
+ 0x0b, 8,
+ 0x52, 8,
+ 0x53, 8,
+ 0x54, 8,
+ 0x55, 8,
+ 0x24, 8,
+ 0x25, 8,
+ 0x58, 8,
+ 0x59, 8,
+ 0x5a, 8,
+ 0x5b, 8,
+ 0x4a, 8,
+ 0x4b, 8,
+ 0x32, 8,
+ 0x33, 8,
+ 0x34, 8,
+};
+static const FX_BYTE WhiteRunMarkup[80] = {
+ 0x1b, 5,
+ 0x12, 5,
+ 0x17, 6,
+ 0x37, 7,
+ 0x36, 8,
+ 0x37, 8,
+ 0x64, 8,
+ 0x65, 8,
+ 0x68, 8,
+ 0x67, 8,
+ 0xcc, 9,
+ 0xcd, 9,
+ 0xd2, 9,
+ 0xd3, 9,
+ 0xd4, 9,
+ 0xd5, 9,
+ 0xd6, 9,
+ 0xd7, 9,
+ 0xd8, 9,
+ 0xd9, 9,
+ 0xda, 9,
+ 0xdb, 9,
+ 0x98, 9,
+ 0x99, 9,
+ 0x9a, 9,
+ 0x18, 6,
+ 0x9b, 9,
+ 0x08, 11,
+ 0x0c, 11,
+ 0x0d, 11,
+ 0x12, 12,
+ 0x13, 12,
+ 0x14, 12,
+ 0x15, 12,
+ 0x16, 12,
+ 0x17, 12,
+ 0x1c, 12,
+ 0x1d, 12,
+ 0x1e, 12,
+ 0x1f, 12,
+};
+static void _AddBitStream(FX_LPBYTE dest_buf, int& dest_bitpos, int data, int bitlen)
+{
+ for (int i = bitlen - 1; i >= 0; i --) {
+ if (data & (1 << i)) {
+ dest_buf[dest_bitpos / 8] |= 1 << (7 - dest_bitpos % 8);
+ }
+ dest_bitpos ++;
+ }
+}
+static void _FaxEncodeRun(FX_LPBYTE dest_buf, int& dest_bitpos, int run, FX_BOOL bWhite)
+{
+ while (run >= 2560) {
+ _AddBitStream(dest_buf, dest_bitpos, 0x1f, 12);
+ run -= 2560;
+ }
+ if (run >= 64) {
+ int markup = run - run % 64;
+ FX_LPCBYTE p = bWhite ? WhiteRunMarkup : BlackRunMarkup;
+ p += (markup / 64 - 1) * 2;
+ _AddBitStream(dest_buf, dest_bitpos, *p, p[1]);
+ }
+ run %= 64;
+ FX_LPCBYTE p = bWhite ? WhiteRunTerminator : BlackRunTerminator;
+ p += run * 2;
+ _AddBitStream(dest_buf, dest_bitpos, *p, p[1]);
+}
+static void _FaxEncode2DLine(FX_LPBYTE dest_buf, int& dest_bitpos, FX_LPCBYTE src_buf, FX_LPCBYTE ref_buf, int cols)
+{
+ int a0 = -1, a0color = 1;
+ while (1) {
+ int a1 = _FindBit(src_buf, cols, a0 + 1, 1 - a0color);
+ int b1, b2;
+ _FaxG4FindB1B2(ref_buf, cols, a0, a0color, b1, b2);
+ if (b2 < a1) {
+ dest_bitpos += 3;
+ dest_buf[dest_bitpos / 8] |= 1 << (7 - dest_bitpos % 8);
+ dest_bitpos ++;
+ a0 = b2;
+ } else if (a1 - b1 <= 3 && b1 - a1 <= 3) {
+ int delta = a1 - b1;
+ switch (delta) {
+ case 0:
+ dest_buf[dest_bitpos / 8] |= 1 << (7 - dest_bitpos % 8);
+ break;
+ case 1:
+ case 2:
+ case 3:
+ dest_bitpos += delta == 1 ? 1 : delta + 2;
+ dest_buf[dest_bitpos / 8] |= 1 << (7 - dest_bitpos % 8);
+ dest_bitpos ++;
+ dest_buf[dest_bitpos / 8] |= 1 << (7 - dest_bitpos % 8);
+ break;
+ case -1:
+ case -2:
+ case -3:
+ dest_bitpos += delta == -1 ? 1 : -delta + 2;
+ dest_buf[dest_bitpos / 8] |= 1 << (7 - dest_bitpos % 8);
+ dest_bitpos ++;
+ break;
+ }
+ dest_bitpos ++;
+ a0 = a1;
+ a0color = 1 - a0color;
+ } else {
+ int a2 = _FindBit(src_buf, cols, a1 + 1, a0color);
+ dest_bitpos ++;
+ dest_bitpos ++;
+ dest_buf[dest_bitpos / 8] |= 1 << (7 - dest_bitpos % 8);
+ dest_bitpos ++;
+ if (a0 < 0) {
+ a0 = 0;
+ }
+ _FaxEncodeRun(dest_buf, dest_bitpos, a1 - a0, a0color);
+ _FaxEncodeRun(dest_buf, dest_bitpos, a2 - a1, 1 - a0color);
+ a0 = a2;
+ }
+ if (a0 >= cols) {
+ return;
+ }
+ }
+}
+class CCodec_FaxEncoder : public CFX_Object
+{
+public:
+ CCodec_FaxEncoder(FX_LPCBYTE src_buf, int width, int height, int pitch);
+ ~CCodec_FaxEncoder();
+ void Encode(FX_LPBYTE& dest_buf, FX_DWORD& dest_size);
+ void Encode2DLine(FX_LPCBYTE scan_line);
+ CFX_BinaryBuf m_DestBuf;
+ FX_LPBYTE m_pRefLine, m_pLineBuf;
+ int m_Cols, m_Rows, m_Pitch;
+ FX_LPCBYTE m_pSrcBuf;
+};
+CCodec_FaxEncoder::CCodec_FaxEncoder(FX_LPCBYTE src_buf, int width, int height, int pitch)
+{
+ m_pSrcBuf = src_buf;
+ m_Cols = width;
+ m_Rows = height;
+ m_Pitch = pitch;
+ m_pRefLine = FX_Alloc(FX_BYTE, m_Pitch);
+ if (m_pRefLine == NULL) {
+ return;
+ }
+ FXSYS_memset8(m_pRefLine, 0xff, m_Pitch);
+ m_pLineBuf = FX_Alloc(FX_BYTE, m_Pitch * 8);
+ if (m_pLineBuf == NULL) {
+ return;
+ }
+ m_DestBuf.EstimateSize(0, 10240);
+}
+CCodec_FaxEncoder::~CCodec_FaxEncoder()
+{
+ if (m_pRefLine) {
+ FX_Free(m_pRefLine);
+ }
+ if (m_pLineBuf) {
+ FX_Free(m_pLineBuf);
+ }
+}
+void CCodec_FaxEncoder::Encode(FX_LPBYTE& dest_buf, FX_DWORD& dest_size)
+{
+ int dest_bitpos = 0;
+ FX_BYTE last_byte = 0;
+ for (int i = 0; i < m_Rows; i ++) {
+ FX_LPCBYTE scan_line = m_pSrcBuf + i * m_Pitch;
+ FXSYS_memset32(m_pLineBuf, 0, m_Pitch * 8);
+ m_pLineBuf[0] = last_byte;
+ _FaxEncode2DLine(m_pLineBuf, dest_bitpos, scan_line, m_pRefLine, m_Cols);
+ m_DestBuf.AppendBlock(m_pLineBuf, dest_bitpos / 8);
+ last_byte = m_pLineBuf[dest_bitpos / 8];
+ dest_bitpos %= 8;
+ FXSYS_memcpy32(m_pRefLine, scan_line, m_Pitch);
+ }
+ if (dest_bitpos) {
+ m_DestBuf.AppendByte(last_byte);
+ }
+ dest_buf = m_DestBuf.GetBuffer();
+ dest_size = m_DestBuf.GetSize();
+ m_DestBuf.DetachBuffer();
+}
+FX_BOOL CCodec_FaxModule::Encode(FX_LPCBYTE src_buf, int width, int height, int pitch, FX_LPBYTE& dest_buf, FX_DWORD& dest_size)
+{
+ CCodec_FaxEncoder encoder(src_buf, width, height, pitch);
+ encoder.Encode(dest_buf, dest_size);
+ return TRUE;
+}
+ICodec_ScanlineDecoder* CCodec_FaxModule::CreateDecoder(FX_LPCBYTE src_buf, FX_DWORD src_size, int width, int height,
+ int K, FX_BOOL EndOfLine, FX_BOOL EncodedByteAlign, FX_BOOL BlackIs1, int Columns, int Rows)
+{
+ CCodec_FaxDecoder* pDecoder = FX_NEW CCodec_FaxDecoder;
+ if (pDecoder == NULL) {
+ return NULL;
+ }
+ pDecoder->Create(src_buf, src_size, width, height, K, EndOfLine, EncodedByteAlign, BlackIs1, Columns, Rows);
+ return pDecoder;
+}
diff --git a/core/src/fxcodec/codec/fx_codec_flate.cpp b/core/src/fxcodec/codec/fx_codec_flate.cpp new file mode 100644 index 0000000000..b6f94e021c --- /dev/null +++ b/core/src/fxcodec/codec/fx_codec_flate.cpp @@ -0,0 +1,945 @@ +// 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_zlib.h"
+#include "../../../include/fxcodec/fx_codec.h"
+#include "codec_int.h"
+extern "C"
+{
+ static void* my_alloc_func (void* opaque, unsigned int items, unsigned int size)
+ {
+ return FX_Alloc(FX_BYTE, items * size);
+ }
+ static void my_free_func (void* opaque, void* address)
+ {
+ FX_Free(address);
+ }
+ void* FPDFAPI_FlateInit(void* (*alloc_func)(void*, unsigned int, unsigned int),
+ void (*free_func)(void*, void*))
+ {
+ z_stream* p = (z_stream*)alloc_func(0, 1, sizeof(z_stream));
+ if (p == NULL) {
+ return NULL;
+ }
+ FXSYS_memset32(p, 0, sizeof(z_stream));
+ p->zalloc = alloc_func;
+ p->zfree = free_func;
+ inflateInit(p);
+ return p;
+ }
+ void FPDFAPI_FlateInput(void* context, const unsigned char* src_buf, unsigned int src_size)
+ {
+ ((z_stream*)context)->next_in = (unsigned char*)src_buf;
+ ((z_stream*)context)->avail_in = src_size;
+ }
+ int FPDFAPI_FlateGetTotalOut(void* context)
+ {
+ return ((z_stream*)context)->total_out;
+ }
+ int FPDFAPI_FlateOutput(void* context, unsigned char* dest_buf, unsigned int dest_size)
+ {
+ ((z_stream*)context)->next_out = dest_buf;
+ ((z_stream*)context)->avail_out = dest_size;
+ unsigned int pre_pos = (unsigned int)FPDFAPI_FlateGetTotalOut(context);
+ int ret = inflate((z_stream*)context, Z_SYNC_FLUSH);
+ unsigned int post_pos = (unsigned int)FPDFAPI_FlateGetTotalOut(context);
+ unsigned int written = post_pos - pre_pos;
+ if (written < dest_size) {
+ FXSYS_memset8(dest_buf + written, '\0', dest_size - written);
+ }
+ return ret;
+ }
+ int FPDFAPI_FlateGetTotalIn(void* context)
+ {
+ return ((z_stream*)context)->total_in;
+ }
+ int FPDFAPI_FlateGetAvailOut(void* context)
+ {
+ return ((z_stream*)context)->avail_out;
+ }
+ int FPDFAPI_FlateGetAvailIn(void* context)
+ {
+ return ((z_stream*)context)->avail_in;
+ }
+ void FPDFAPI_FlateEnd(void* context)
+ {
+ inflateEnd((z_stream*)context);
+ ((z_stream*)context)->zfree(0, context);
+ }
+ void FPDFAPI_FlateCompress(unsigned char* dest_buf, unsigned long* dest_size, const unsigned char* src_buf, unsigned long src_size)
+ {
+ compress(dest_buf, dest_size, src_buf, src_size);
+ }
+}
+class CLZWDecoder : public CFX_Object
+{
+public:
+ FX_BOOL Decode(FX_LPBYTE output, FX_DWORD& outlen, const FX_BYTE* input, FX_DWORD& size, FX_BOOL bEarlyChange);
+private:
+ FX_DWORD m_InPos;
+ FX_DWORD m_OutPos;
+ FX_LPBYTE m_pOutput;
+ const FX_BYTE* m_pInput;
+ FX_BOOL m_Early;
+ void AddCode(FX_DWORD prefix_code, FX_BYTE append_char);
+ FX_DWORD m_CodeArray[5021];
+ FX_DWORD m_nCodes;
+ FX_BYTE m_DecodeStack[4000];
+ FX_DWORD m_StackLen;
+ void DecodeString(FX_DWORD code);
+ int m_CodeLen;
+};
+void CLZWDecoder::AddCode(FX_DWORD prefix_code, FX_BYTE append_char)
+{
+ if (m_nCodes + m_Early == 4094) {
+ return;
+ }
+ m_CodeArray[m_nCodes ++] = (prefix_code << 16) | append_char;
+ if (m_nCodes + m_Early == 512 - 258) {
+ m_CodeLen = 10;
+ } else if (m_nCodes + m_Early == 1024 - 258) {
+ m_CodeLen = 11;
+ } else if (m_nCodes + m_Early == 2048 - 258) {
+ m_CodeLen = 12;
+ }
+}
+void CLZWDecoder::DecodeString(FX_DWORD code)
+{
+ while (1) {
+ int index = code - 258;
+ if (index < 0 || index >= (int)m_nCodes) {
+ break;
+ }
+ FX_DWORD data = m_CodeArray[index];
+ if (m_StackLen >= sizeof(m_DecodeStack)) {
+ return;
+ }
+ m_DecodeStack[m_StackLen++] = (FX_BYTE)data;
+ code = data >> 16;
+ }
+ if (m_StackLen >= sizeof(m_DecodeStack)) {
+ return;
+ }
+ m_DecodeStack[m_StackLen++] = (FX_BYTE)code;
+}
+int CLZWDecoder::Decode(FX_LPBYTE dest_buf, FX_DWORD& dest_size, const FX_BYTE* src_buf, FX_DWORD& src_size, FX_BOOL bEarlyChange)
+{
+ m_CodeLen = 9;
+ m_InPos = 0;
+ m_OutPos = 0;
+ m_pInput = src_buf;
+ m_pOutput = dest_buf;
+ m_Early = bEarlyChange ? 1 : 0;
+ m_nCodes = 0;
+ FX_DWORD old_code = (FX_DWORD) - 1;
+ FX_BYTE last_char;
+ while (1) {
+ if (m_InPos + m_CodeLen > src_size * 8) {
+ break;
+ }
+ int byte_pos = m_InPos / 8;
+ int bit_pos = m_InPos % 8, bit_left = m_CodeLen;
+ FX_DWORD code = 0;
+ if (bit_pos) {
+ bit_left -= 8 - bit_pos;
+ code = (m_pInput[byte_pos++] & ((1 << (8 - bit_pos)) - 1)) << bit_left;
+ }
+ if (bit_left < 8) {
+ code |= m_pInput[byte_pos] >> (8 - bit_left);
+ } else {
+ bit_left -= 8;
+ code |= m_pInput[byte_pos++] << bit_left;
+ if (bit_left) {
+ code |= m_pInput[byte_pos] >> (8 - bit_left);
+ }
+ }
+ m_InPos += m_CodeLen;
+ if (code < 256) {
+ if (m_OutPos == dest_size) {
+ return -5;
+ }
+ if (m_pOutput) {
+ m_pOutput[m_OutPos] = (FX_BYTE)code;
+ }
+ m_OutPos ++;
+ last_char = (FX_BYTE)code;
+ if (old_code != (FX_DWORD) - 1) {
+ AddCode(old_code, last_char);
+ }
+ old_code = code;
+ } else if (code == 256) {
+ m_CodeLen = 9;
+ m_nCodes = 0;
+ old_code = (FX_DWORD) - 1;
+ } else if (code == 257) {
+ break;
+ } else {
+ if (old_code == (FX_DWORD) - 1) {
+ return 2;
+ }
+ m_StackLen = 0;
+ if (code >= m_nCodes + 258) {
+ if (m_StackLen < sizeof(m_DecodeStack)) {
+ m_DecodeStack[m_StackLen++] = last_char;
+ }
+ DecodeString(old_code);
+ } else {
+ DecodeString(code);
+ }
+ if (m_OutPos + m_StackLen > dest_size) {
+ return -5;
+ }
+ if (m_pOutput) {
+ for (FX_DWORD i = 0; i < m_StackLen; i ++) {
+ m_pOutput[m_OutPos + i] = m_DecodeStack[m_StackLen - i - 1];
+ }
+ }
+ m_OutPos += m_StackLen;
+ last_char = m_DecodeStack[m_StackLen - 1];
+ if (old_code < 256) {
+ AddCode(old_code, last_char);
+ } else if (old_code - 258 >= m_nCodes) {
+ dest_size = m_OutPos;
+ src_size = (m_InPos + 7) / 8;
+ return 0;
+ } else {
+ AddCode(old_code, last_char);
+ }
+ old_code = code;
+ }
+ }
+ dest_size = m_OutPos;
+ src_size = (m_InPos + 7) / 8;
+ return 0;
+}
+static FX_BYTE PaethPredictor(int a, int b, int c)
+{
+ int p = a + b - c;
+ int pa = FXSYS_abs(p - a);
+ int pb = FXSYS_abs(p - b);
+ int pc = FXSYS_abs(p - c);
+ if (pa <= pb && pa <= pc) {
+ return (FX_BYTE)a;
+ }
+ if (pb <= pc) {
+ return (FX_BYTE)b;
+ }
+ return (FX_BYTE)c;
+}
+static void PNG_PredictorEncode(FX_LPBYTE& data_buf, FX_DWORD& data_size, int predictor, int Colors, int BitsPerComponent, int Columns)
+{
+ int BytesPerPixel = (Colors * BitsPerComponent + 7) / 8;
+ int row_size = (Colors * BitsPerComponent * Columns + 7) / 8;
+ int row_count = (data_size + row_size - 1) / row_size;
+ int last_row_size = data_size % row_size;
+ FX_LPBYTE dest_buf = FX_Alloc( FX_BYTE, (row_size + 1) * row_count);
+ if (dest_buf == NULL) {
+ return;
+ }
+ int byte_cnt = 0;
+ FX_LPBYTE pSrcData = data_buf;
+ FX_LPBYTE pDestData = dest_buf;
+ for (int row = 0; row < row_count; row++) {
+ if (predictor == 10) {
+ pDestData[0] = 0;
+ int move_size = row_size;
+ if (move_size * (row + 1) > (int)data_size) {
+ move_size = data_size - (move_size * row);
+ }
+ FXSYS_memmove32(pDestData + 1, pSrcData, move_size);
+ pDestData += (move_size + 1);
+ pSrcData += move_size;
+ byte_cnt += move_size;
+ continue;
+ }
+ for (int byte = 0; byte < row_size && byte_cnt < (int)data_size; byte++) {
+ switch (predictor) {
+ case 11: {
+ pDestData[0] = 1;
+ FX_BYTE left = 0;
+ if (byte >= BytesPerPixel) {
+ left = pSrcData[byte - BytesPerPixel];
+ }
+ pDestData[byte + 1] = pSrcData[byte] - left;
+ }
+ break;
+ case 12: {
+ pDestData[0] = 2;
+ FX_BYTE up = 0;
+ if (row) {
+ up = pSrcData[byte - row_size];
+ }
+ pDestData[byte + 1] = pSrcData[byte] - up;
+ }
+ break;
+ case 13: {
+ pDestData[0] = 3;
+ FX_BYTE left = 0;
+ if (byte >= BytesPerPixel) {
+ left = pSrcData[byte - BytesPerPixel];
+ }
+ FX_BYTE up = 0;
+ if (row) {
+ up = pSrcData[byte - row_size];
+ }
+ pDestData[byte + 1] = pSrcData[byte] - (left + up) / 2;
+ }
+ break;
+ case 14: {
+ pDestData[0] = 4;
+ FX_BYTE left = 0;
+ if (byte >= BytesPerPixel) {
+ left = pSrcData[byte - BytesPerPixel];
+ }
+ FX_BYTE up = 0;
+ if (row) {
+ up = pSrcData[byte - row_size];
+ }
+ FX_BYTE upper_left = 0;
+ if (byte >= BytesPerPixel && row) {
+ upper_left = pSrcData[byte - row_size - BytesPerPixel];
+ }
+ pDestData[byte + 1] = pSrcData[byte] - PaethPredictor(left, up, upper_left);
+ }
+ break;
+ default: {
+ pDestData[byte + 1] = pSrcData[byte];
+ }
+ break;
+ }
+ byte_cnt++;
+ }
+ pDestData += (row_size + 1);
+ pSrcData += row_size;
+ }
+ FX_Free(data_buf);
+ data_buf = dest_buf;
+ data_size = (row_size + 1) * row_count - (last_row_size > 0 ? (row_size - last_row_size) : 0);
+}
+static void PNG_PredictLine(FX_LPBYTE pDestData, FX_LPCBYTE pSrcData, FX_LPCBYTE pLastLine,
+ int bpc, int nColors, int nPixels)
+{
+ int row_size = (nPixels * bpc * nColors + 7) / 8;
+ int BytesPerPixel = (bpc * nColors + 7) / 8;
+ FX_BYTE tag = pSrcData[0];
+ if (tag == 0) {
+ FXSYS_memmove32(pDestData, pSrcData + 1, row_size);
+ return;
+ }
+ for (int byte = 0; byte < row_size; byte ++) {
+ FX_BYTE raw_byte = pSrcData[byte + 1];
+ switch (tag) {
+ case 1: {
+ FX_BYTE left = 0;
+ if (byte >= BytesPerPixel) {
+ left = pDestData[byte - BytesPerPixel];
+ }
+ pDestData[byte] = raw_byte + left;
+ break;
+ }
+ case 2: {
+ FX_BYTE up = 0;
+ if (pLastLine) {
+ up = pLastLine[byte];
+ }
+ pDestData[byte] = raw_byte + up;
+ break;
+ }
+ case 3: {
+ FX_BYTE left = 0;
+ if (byte >= BytesPerPixel) {
+ left = pDestData[byte - BytesPerPixel];
+ }
+ FX_BYTE up = 0;
+ if (pLastLine) {
+ up = pLastLine[byte];
+ }
+ pDestData[byte] = raw_byte + (up + left) / 2;
+ break;
+ }
+ case 4: {
+ FX_BYTE left = 0;
+ if (byte >= BytesPerPixel) {
+ left = pDestData[byte - BytesPerPixel];
+ }
+ FX_BYTE up = 0;
+ if (pLastLine) {
+ up = pLastLine[byte];
+ }
+ FX_BYTE upper_left = 0;
+ if (byte >= BytesPerPixel && pLastLine) {
+ upper_left = pLastLine[byte - BytesPerPixel];
+ }
+ pDestData[byte] = raw_byte + PaethPredictor(left, up, upper_left);
+ break;
+ }
+ default:
+ pDestData[byte] = raw_byte;
+ break;
+ }
+ }
+}
+static void PNG_Predictor(FX_LPBYTE& data_buf, FX_DWORD& data_size,
+ int Colors, int BitsPerComponent, int Columns)
+{
+ int BytesPerPixel = (Colors * BitsPerComponent + 7) / 8;
+ int row_size = (Colors * BitsPerComponent * Columns + 7) / 8;
+ int row_count = (data_size + row_size) / (row_size + 1);
+ int last_row_size = data_size % (row_size + 1);
+ FX_LPBYTE dest_buf = FX_Alloc( FX_BYTE, row_size * row_count);
+ if (dest_buf == NULL) {
+ return;
+ }
+ int byte_cnt = 0;
+ FX_LPBYTE pSrcData = data_buf;
+ FX_LPBYTE pDestData = dest_buf;
+ for (int row = 0; row < row_count; row ++) {
+ FX_BYTE tag = pSrcData[0];
+ if (tag == 0) {
+ int move_size = row_size;
+ if ((row + 1) * (move_size + 1) > (int)data_size) {
+ move_size = last_row_size - 1;
+ }
+ FXSYS_memmove32(pDestData, pSrcData + 1, move_size);
+ pSrcData += move_size + 1;
+ pDestData += move_size;
+ byte_cnt += move_size + 1;
+ continue;
+ }
+ for (int byte = 0; byte < row_size && byte_cnt < (int)data_size; byte ++) {
+ FX_BYTE raw_byte = pSrcData[byte + 1];
+ switch (tag) {
+ case 1: {
+ FX_BYTE left = 0;
+ if (byte >= BytesPerPixel) {
+ left = pDestData[byte - BytesPerPixel];
+ }
+ pDestData[byte] = raw_byte + left;
+ break;
+ }
+ case 2: {
+ FX_BYTE up = 0;
+ if (row) {
+ up = pDestData[byte - row_size];
+ }
+ pDestData[byte] = raw_byte + up;
+ break;
+ }
+ case 3: {
+ FX_BYTE left = 0;
+ if (byte >= BytesPerPixel) {
+ left = pDestData[byte - BytesPerPixel];
+ }
+ FX_BYTE up = 0;
+ if (row) {
+ up = pDestData[byte - row_size];
+ }
+ pDestData[byte] = raw_byte + (up + left) / 2;
+ break;
+ }
+ case 4: {
+ FX_BYTE left = 0;
+ if (byte >= BytesPerPixel) {
+ left = pDestData[byte - BytesPerPixel];
+ }
+ FX_BYTE up = 0;
+ if (row) {
+ up = pDestData[byte - row_size];
+ }
+ FX_BYTE upper_left = 0;
+ if (byte >= BytesPerPixel && row) {
+ upper_left = pDestData[byte - row_size - BytesPerPixel];
+ }
+ pDestData[byte] = raw_byte + PaethPredictor(left, up, upper_left);
+ break;
+ }
+ default:
+ pDestData[byte] = raw_byte;
+ break;
+ }
+ byte_cnt++;
+ }
+ pSrcData += row_size + 1;
+ pDestData += row_size;
+ byte_cnt++;
+ }
+ FX_Free(data_buf);
+ data_buf = dest_buf;
+ data_size = row_size * row_count - (last_row_size > 0 ? (row_size + 1 - last_row_size) : 0);
+}
+static void TIFF_PredictorEncodeLine(FX_LPBYTE dest_buf, int row_size, int BitsPerComponent, int Colors, int Columns)
+{
+ int BytesPerPixel = BitsPerComponent * Colors / 8;
+ if (BitsPerComponent < 8) {
+ FX_BYTE mask = 0x01;
+ if (BitsPerComponent == 2) {
+ mask = 0x03;
+ } else if (BitsPerComponent == 4) {
+ mask = 0x0F;
+ }
+ int row_bits = Colors * BitsPerComponent * Columns;
+ for (int i = row_bits - BitsPerComponent; i >= BitsPerComponent; i -= BitsPerComponent) {
+ int col = i % 8;
+ int index = i / 8;
+ int col_pre = (col == 0) ? (8 - BitsPerComponent) : (col - BitsPerComponent);
+ int index_pre = (col == 0) ? (index - 1) : index;
+ FX_BYTE cur = (dest_buf[index] >> (8 - col - BitsPerComponent)) & mask;
+ FX_BYTE left = (dest_buf[index_pre] >> (8 - col_pre - BitsPerComponent)) & mask;
+ cur -= left;
+ cur &= mask;
+ cur <<= (8 - col - BitsPerComponent);
+ dest_buf[index] &= ~(mask << ((8 - col - BitsPerComponent)));
+ dest_buf[index] |= cur;
+ }
+ } else if (BitsPerComponent == 8) {
+ for (int i = row_size - 1; i >= BytesPerPixel; i--) {
+ dest_buf[i] -= dest_buf[i - BytesPerPixel];
+ }
+ } else {
+ for (int i = row_size - BytesPerPixel; i >= BytesPerPixel; i -= BytesPerPixel) {
+ FX_WORD pixel = (dest_buf[i] << 8) | dest_buf[i + 1];
+ pixel -= (dest_buf[i - BytesPerPixel] << 8) | dest_buf[i - BytesPerPixel + 1];
+ dest_buf[i] = pixel >> 8;
+ dest_buf[i + 1] = (FX_BYTE)pixel;
+ }
+ }
+}
+static void TIFF_PredictorEncode(FX_LPBYTE& data_buf, FX_DWORD& data_size,
+ int Colors, int BitsPerComponent, int Columns)
+{
+ int row_size = (Colors * BitsPerComponent * Columns + 7) / 8;
+ int row_count = (data_size + row_size - 1) / row_size;
+ int last_row_size = data_size % row_size;
+ for (int row = 0; row < row_count; row++) {
+ FX_LPBYTE scan_line = data_buf + row * row_size;
+ if ((row + 1) * row_size > (int)data_size) {
+ row_size = last_row_size;
+ }
+ TIFF_PredictorEncodeLine(scan_line, row_size, BitsPerComponent, Colors, Columns);
+ }
+}
+static void TIFF_PredictLine(FX_LPBYTE dest_buf, int row_size, int BitsPerComponent, int Colors, int Columns)
+{
+ if (BitsPerComponent == 1) {
+ int row_bits = BitsPerComponent * Colors * Columns;
+ for(int i = 1; i < row_bits; i ++) {
+ int col = i % 8;
+ int index = i / 8;
+ int index_pre = (col == 0) ? (index - 1) : index;
+ int col_pre = (col == 0) ? 8 : col;
+ if( ((dest_buf[index] >> (7 - col)) & 1) ^ ((dest_buf[index_pre] >> (8 - col_pre)) & 1) ) {
+ dest_buf[index] |= 1 << (7 - col);
+ } else {
+ dest_buf[index] &= ~(1 << (7 - col));
+ }
+ }
+ return;
+ }
+ int BytesPerPixel = BitsPerComponent * Colors / 8;
+ if (BitsPerComponent == 16) {
+ for (int i = BytesPerPixel; i < row_size; i += 2) {
+ FX_WORD pixel = (dest_buf[i - BytesPerPixel] << 8) | dest_buf[i - BytesPerPixel + 1];
+ pixel += (dest_buf[i] << 8) | dest_buf[i + 1];
+ dest_buf[i] = pixel >> 8;
+ dest_buf[i + 1] = (FX_BYTE)pixel;
+ }
+ } else {
+ for (int i = BytesPerPixel; i < row_size; i ++) {
+ dest_buf[i] += dest_buf[i - BytesPerPixel];
+ }
+ }
+}
+static void TIFF_Predictor(FX_LPBYTE& data_buf, FX_DWORD& data_size,
+ int Colors, int BitsPerComponent, int Columns)
+{
+ int row_size = (Colors * BitsPerComponent * Columns + 7) / 8;
+ int row_count = (data_size + row_size - 1) / row_size;
+ int last_row_size = data_size % row_size;
+ for (int row = 0; row < row_count; row ++) {
+ FX_LPBYTE scan_line = data_buf + row * row_size;
+ if ((row + 1) * row_size > (int)data_size) {
+ row_size = last_row_size;
+ }
+ TIFF_PredictLine(scan_line, row_size, BitsPerComponent, Colors, Columns);
+ }
+}
+class CCodec_FlateScanlineDecoder : public CCodec_ScanlineDecoder
+{
+public:
+ CCodec_FlateScanlineDecoder();
+ ~CCodec_FlateScanlineDecoder();
+ FX_BOOL Create(FX_LPCBYTE src_buf, FX_DWORD src_size, int width, int height, int nComps, int bpc,
+ int predictor, int Colors, int BitsPerComponent, int Columns);
+ virtual void Destroy()
+ {
+ delete this;
+ }
+ virtual void v_DownScale(int dest_width, int dest_height) {}
+ virtual FX_BOOL v_Rewind();
+ virtual FX_LPBYTE v_GetNextLine();
+ virtual FX_DWORD GetSrcOffset();
+ void* m_pFlate;
+ FX_LPCBYTE m_SrcBuf;
+ FX_DWORD m_SrcSize;
+ FX_LPBYTE m_pScanline;
+ FX_LPBYTE m_pLastLine;
+ FX_LPBYTE m_pPredictBuffer;
+ FX_LPBYTE m_pPredictRaw;
+ int m_Predictor;
+ int m_Colors, m_BitsPerComponent, m_Columns, m_PredictPitch, m_LeftOver;
+};
+CCodec_FlateScanlineDecoder::CCodec_FlateScanlineDecoder()
+{
+ m_pFlate = NULL;
+ m_pScanline = NULL;
+ m_pLastLine = NULL;
+ m_pPredictBuffer = NULL;
+ m_pPredictRaw = NULL;
+ m_LeftOver = 0;
+}
+CCodec_FlateScanlineDecoder::~CCodec_FlateScanlineDecoder()
+{
+ if (m_pScanline) {
+ FX_Free(m_pScanline);
+ }
+ if (m_pLastLine) {
+ FX_Free(m_pLastLine);
+ }
+ if (m_pPredictBuffer) {
+ FX_Free(m_pPredictBuffer);
+ }
+ if (m_pPredictRaw) {
+ FX_Free(m_pPredictRaw);
+ }
+ if (m_pFlate) {
+ FPDFAPI_FlateEnd(m_pFlate);
+ }
+}
+FX_BOOL CCodec_FlateScanlineDecoder::Create(FX_LPCBYTE src_buf, FX_DWORD src_size, int width, int height,
+ int nComps, int bpc, int predictor, int Colors, int BitsPerComponent, int Columns)
+{
+ m_SrcBuf = src_buf;
+ m_SrcSize = src_size;
+ m_OutputWidth = m_OrigWidth = width;
+ m_OutputHeight = m_OrigHeight = height;
+ m_nComps = nComps;
+ m_bpc = bpc;
+ m_bColorTransformed = FALSE;
+ m_Pitch = (width * nComps * bpc + 7) / 8;
+ m_pScanline = FX_Alloc(FX_BYTE, m_Pitch);
+ if (m_pScanline == NULL) {
+ return FALSE;
+ }
+ m_Predictor = 0;
+ if (predictor) {
+ if (predictor >= 10) {
+ m_Predictor = 2;
+ } else if (predictor == 2) {
+ m_Predictor = 1;
+ }
+ if (m_Predictor) {
+ if (BitsPerComponent * Colors * Columns == 0) {
+ BitsPerComponent = m_bpc;
+ Colors = m_nComps;
+ Columns = m_OrigWidth;
+ }
+ m_Colors = Colors;
+ m_BitsPerComponent = BitsPerComponent;
+ m_Columns = Columns;
+ m_PredictPitch = (m_BitsPerComponent * m_Colors * m_Columns + 7) / 8;
+ m_pLastLine = FX_Alloc(FX_BYTE, m_PredictPitch);
+ if (m_pLastLine == NULL) {
+ return FALSE;
+ }
+ FXSYS_memset32(m_pLastLine, 0, m_PredictPitch);
+ m_pPredictRaw = FX_Alloc(FX_BYTE, m_PredictPitch + 1);
+ if (m_pPredictRaw == NULL) {
+ return FALSE;
+ }
+ m_pPredictBuffer = FX_Alloc(FX_BYTE, m_PredictPitch);
+ if (m_pPredictBuffer == NULL) {
+ return FALSE;
+ }
+ }
+ }
+ return TRUE;
+}
+FX_BOOL CCodec_FlateScanlineDecoder::v_Rewind()
+{
+ if (m_pFlate) {
+ FPDFAPI_FlateEnd(m_pFlate);
+ }
+ m_pFlate = FPDFAPI_FlateInit(my_alloc_func, my_free_func);
+ if (m_pFlate == NULL) {
+ return FALSE;
+ }
+ FPDFAPI_FlateInput(m_pFlate, m_SrcBuf, m_SrcSize);
+ m_LeftOver = 0;
+ return TRUE;
+}
+FX_LPBYTE CCodec_FlateScanlineDecoder::v_GetNextLine()
+{
+ if (m_Predictor) {
+ if (m_Pitch == m_PredictPitch) {
+ if (m_Predictor == 2) {
+ FPDFAPI_FlateOutput(m_pFlate, m_pPredictRaw, m_PredictPitch + 1);
+ PNG_PredictLine(m_pScanline, m_pPredictRaw, m_pLastLine, m_BitsPerComponent, m_Colors, m_Columns);
+ FXSYS_memcpy32(m_pLastLine, m_pScanline, m_PredictPitch);
+ } else {
+ FPDFAPI_FlateOutput(m_pFlate, m_pScanline, m_Pitch);
+ TIFF_PredictLine(m_pScanline, m_PredictPitch, m_bpc, m_nComps, m_OutputWidth);
+ }
+ } else {
+ int bytes_to_go = m_Pitch;
+ int read_leftover = m_LeftOver > bytes_to_go ? bytes_to_go : m_LeftOver;
+ if (read_leftover) {
+ FXSYS_memcpy32(m_pScanline, m_pPredictBuffer + m_PredictPitch - m_LeftOver, read_leftover);
+ m_LeftOver -= read_leftover;
+ bytes_to_go -= read_leftover;
+ }
+ while (bytes_to_go) {
+ if (m_Predictor == 2) {
+ FPDFAPI_FlateOutput(m_pFlate, m_pPredictRaw, m_PredictPitch + 1);
+ PNG_PredictLine(m_pPredictBuffer, m_pPredictRaw, m_pLastLine, m_BitsPerComponent, m_Colors, m_Columns);
+ FXSYS_memcpy32(m_pLastLine, m_pPredictBuffer, m_PredictPitch);
+ } else {
+ FPDFAPI_FlateOutput(m_pFlate, m_pPredictBuffer, m_PredictPitch);
+ TIFF_PredictLine(m_pPredictBuffer, m_PredictPitch, m_BitsPerComponent, m_Colors, m_Columns);
+ }
+ int read_bytes = m_PredictPitch > bytes_to_go ? bytes_to_go : m_PredictPitch;
+ FXSYS_memcpy32(m_pScanline + m_Pitch - bytes_to_go, m_pPredictBuffer, read_bytes);
+ m_LeftOver += m_PredictPitch - read_bytes;
+ bytes_to_go -= read_bytes;
+ }
+ }
+ } else {
+ FPDFAPI_FlateOutput(m_pFlate, m_pScanline, m_Pitch);
+ }
+ return m_pScanline;
+}
+FX_DWORD CCodec_FlateScanlineDecoder::GetSrcOffset()
+{
+ return FPDFAPI_FlateGetTotalIn(m_pFlate);
+}
+static void FlateUncompress(FX_LPCBYTE src_buf, FX_DWORD src_size, FX_DWORD orig_size,
+ FX_LPBYTE& dest_buf, FX_DWORD& dest_size, FX_DWORD& offset)
+{
+ FX_DWORD guess_size = orig_size ? orig_size : src_size * 2;
+ FX_DWORD alloc_step = orig_size ? 10240 : (src_size < 10240 ? 10240 : src_size);
+ static const FX_DWORD kMaxInitialAllocSize = 10000000;
+ if (guess_size > kMaxInitialAllocSize) {
+ guess_size = kMaxInitialAllocSize;
+ alloc_step = kMaxInitialAllocSize;
+ }
+ FX_LPBYTE guess_buf = FX_Alloc(FX_BYTE, guess_size + 1);
+ if (!guess_buf) {
+ dest_buf = NULL;
+ dest_size = 0;
+ return;
+ }
+ guess_buf[guess_size] = '\0';
+ FX_BOOL useOldImpl = src_size < 10240;
+ void* context = FPDFAPI_FlateInit(my_alloc_func, my_free_func);
+ if (context == NULL) {
+ dest_buf = NULL;
+ dest_size = 0;
+ return ;
+ }
+ FPDFAPI_FlateInput(context, src_buf, src_size);
+ CFX_ArrayTemplate<FX_LPBYTE> result_tmp_bufs;
+ FX_LPBYTE buf = guess_buf;
+ FX_DWORD buf_size = guess_size;
+ FX_DWORD last_buf_size = buf_size;
+ while (1) {
+ FX_INT32 ret = FPDFAPI_FlateOutput(context, buf, buf_size);
+ FX_INT32 avail_buf_size = FPDFAPI_FlateGetAvailOut(context);
+ if (!useOldImpl) {
+ if (ret != Z_OK) {
+ last_buf_size = buf_size - avail_buf_size;
+ result_tmp_bufs.Add(buf);
+ break;
+ }
+ if (avail_buf_size == 0) {
+ result_tmp_bufs.Add(buf);
+ buf = NULL;
+ buf = FX_Alloc(FX_BYTE, buf_size + 1);
+ if (!buf) {
+ dest_buf = NULL;
+ dest_size = 0;
+ return;
+ }
+ buf[buf_size] = '\0';
+ } else {
+ last_buf_size = buf_size - avail_buf_size;
+ result_tmp_bufs.Add(buf);
+ buf = NULL;
+ break;
+ }
+ } else {
+ if (ret != Z_OK) {
+ break;
+ }
+ if (avail_buf_size == 0) {
+ FX_DWORD old_size = guess_size;
+ guess_size += alloc_step;
+ if (guess_size < old_size || guess_size + 1 < guess_size) {
+ dest_buf = NULL;
+ dest_size = 0;
+ return;
+ }
+ guess_buf = FX_Realloc(FX_BYTE, guess_buf, guess_size + 1);
+ if (!guess_buf) {
+ dest_buf = NULL;
+ dest_size = 0;
+ return;
+ }
+ guess_buf[guess_size] = '\0';
+ buf = guess_buf + old_size;
+ buf_size = guess_size - old_size;
+ } else {
+ break;
+ }
+ }
+ }
+ dest_size = FPDFAPI_FlateGetTotalOut(context);
+ offset = FPDFAPI_FlateGetTotalIn(context);
+ if (!useOldImpl) {
+ if (result_tmp_bufs.GetSize() == 1) {
+ dest_buf = result_tmp_bufs[0];
+ } else {
+ FX_LPBYTE result_buf = FX_Alloc(FX_BYTE, dest_size);
+ if (!result_buf) {
+ dest_buf = NULL;
+ dest_size = 0;
+ return;
+ }
+ FX_DWORD result_pos = 0;
+ for (FX_INT32 i = 0; i < result_tmp_bufs.GetSize(); i++) {
+ FX_LPBYTE tmp_buf = result_tmp_bufs[i];
+ FX_DWORD tmp_buf_size = buf_size;
+ if (i == result_tmp_bufs.GetSize() - 1) {
+ tmp_buf_size = last_buf_size;
+ }
+ FXSYS_memcpy32(result_buf + result_pos, tmp_buf, tmp_buf_size);
+ result_pos += tmp_buf_size;
+ FX_Free(tmp_buf);
+ tmp_buf = NULL;
+ result_tmp_bufs[i] = NULL;
+ }
+ dest_buf = result_buf;
+ }
+ } else {
+ if (guess_size / 2 > dest_size) {
+ guess_buf = FX_Realloc(FX_BYTE, guess_buf, dest_size + 1);
+ if (!guess_buf) {
+ dest_buf = NULL;
+ dest_size = 0;
+ return;
+ }
+ guess_size = dest_size;
+ guess_buf[guess_size] = '\0';
+ }
+ dest_buf = guess_buf;
+ }
+ FPDFAPI_FlateEnd(context);
+ context = NULL;
+}
+ICodec_ScanlineDecoder* CCodec_FlateModule::CreateDecoder(FX_LPCBYTE src_buf, FX_DWORD src_size, int width, int height,
+ int nComps, int bpc, int predictor, int Colors, int BitsPerComponent, int Columns)
+{
+ CCodec_FlateScanlineDecoder* pDecoder = FX_NEW CCodec_FlateScanlineDecoder;
+ if (pDecoder == NULL) {
+ return NULL;
+ }
+ pDecoder->Create(src_buf, src_size, width, height, nComps, bpc, predictor, Colors, BitsPerComponent, Columns);
+ return pDecoder;
+}
+FX_DWORD CCodec_FlateModule::FlateOrLZWDecode(FX_BOOL bLZW, const FX_BYTE* src_buf, FX_DWORD src_size, FX_BOOL bEarlyChange,
+ int predictor, int Colors, int BitsPerComponent, int Columns,
+ FX_DWORD estimated_size, FX_LPBYTE& dest_buf, FX_DWORD& dest_size)
+{
+ CLZWDecoder* pDecoder = NULL;
+ dest_buf = NULL;
+ FX_DWORD offset = 0;
+ int predictor_type = 0;
+ if (predictor) {
+ if (predictor >= 10) {
+ predictor_type = 2;
+ } else if (predictor == 2) {
+ predictor_type = 1;
+ }
+ }
+ if (bLZW) {
+ pDecoder = FX_NEW CLZWDecoder;
+ if (pDecoder == NULL) {
+ return -1;
+ }
+ dest_size = (FX_DWORD) - 1;
+ offset = src_size;
+ int err = pDecoder->Decode(NULL, dest_size, src_buf, offset, bEarlyChange);
+ delete pDecoder;
+ if (err || dest_size == 0 || dest_size + 1 < dest_size) {
+ return (FX_DWORD) - 1;
+ }
+ pDecoder = FX_NEW CLZWDecoder;
+ if (pDecoder == NULL) {
+ return -1;
+ }
+ dest_buf = FX_Alloc( FX_BYTE, dest_size + 1);
+ if (dest_buf == NULL) {
+ return -1;
+ }
+ dest_buf[dest_size] = '\0';
+ pDecoder->Decode(dest_buf, dest_size, src_buf, offset, bEarlyChange);
+ delete pDecoder;
+ } else {
+ FlateUncompress(src_buf, src_size, estimated_size, dest_buf, dest_size, offset);
+ }
+ if (predictor_type == 0) {
+ return offset;
+ }
+ if (predictor_type == 2) {
+ PNG_Predictor(dest_buf, dest_size, Colors, BitsPerComponent, Columns);
+ } else if (predictor_type == 1) {
+ TIFF_Predictor(dest_buf, dest_size, Colors, BitsPerComponent, Columns);
+ }
+ return offset;
+}
+FX_BOOL CCodec_FlateModule::Encode(const FX_BYTE* src_buf, FX_DWORD src_size,
+ int predictor, int Colors, int BitsPerComponent, int Columns,
+ FX_LPBYTE& dest_buf, FX_DWORD& dest_size)
+{
+ if (predictor != 2 && predictor < 10) {
+ return Encode(src_buf, src_size, dest_buf, dest_size);
+ }
+ FX_BOOL ret = FALSE;
+ FX_LPBYTE pSrcBuf = NULL;
+ pSrcBuf = FX_Alloc(FX_BYTE, src_size);
+ if (pSrcBuf == NULL) {
+ return FALSE;
+ }
+ FXSYS_memcpy32(pSrcBuf, src_buf, src_size);
+ if (predictor == 2) {
+ TIFF_PredictorEncode(pSrcBuf, src_size, Colors, BitsPerComponent, Columns);
+ } else if (predictor >= 10) {
+ PNG_PredictorEncode(pSrcBuf, src_size, predictor, Colors, BitsPerComponent, Columns);
+ }
+ ret = Encode(pSrcBuf, src_size, dest_buf, dest_size);
+ FX_Free(pSrcBuf);
+ return ret;
+}
+FX_BOOL CCodec_FlateModule::Encode(FX_LPCBYTE src_buf, FX_DWORD src_size, FX_LPBYTE& dest_buf, FX_DWORD& dest_size)
+{
+ dest_size = src_size + src_size / 1000 + 12;
+ dest_buf = FX_Alloc( FX_BYTE, dest_size);
+ if (dest_buf == NULL) {
+ return FALSE;
+ }
+ unsigned long temp_size = dest_size;
+ FPDFAPI_FlateCompress(dest_buf, &temp_size, src_buf, src_size);
+ dest_size = (FX_DWORD)temp_size;
+ return TRUE;
+}
diff --git a/core/src/fxcodec/codec/fx_codec_icc.cpp b/core/src/fxcodec/codec/fx_codec_icc.cpp new file mode 100644 index 0000000000..65617642fe --- /dev/null +++ b/core/src/fxcodec/codec/fx_codec_icc.cpp @@ -0,0 +1,1360 @@ +// 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 "../../../include/fxcodec/fx_codec.h"
+#include "codec_int.h"
+#include "../lcms2/include/fx_lcms2.h"
+FX_BOOL MD5ComputeID( FX_LPCVOID buf, FX_DWORD dwSize, FX_BYTE ID[16] )
+{
+ return cmsMD5computeIDExt(buf, dwSize, ID);
+}
+struct CLcmsCmm : public CFX_Object {
+ cmsHTRANSFORM m_hTransform;
+ int m_nSrcComponents;
+ int m_nDstComponents;
+ FX_BOOL m_bLab;
+};
+extern "C" {
+ int ourHandler(int ErrorCode, const char *ErrorText)
+ {
+ return TRUE;
+ }
+};
+FX_BOOL CheckComponents(cmsColorSpaceSignature cs, int nComponents, FX_BOOL bDst)
+{
+ if (nComponents <= 0 || nComponents > 15) {
+ return FALSE;
+ }
+ switch(cs) {
+ case cmsSigLabData:
+ if (nComponents < 3) {
+ return FALSE;
+ }
+ break;
+ case cmsSigGrayData:
+ if (bDst && nComponents != 1) {
+ return FALSE;
+ } else if (!bDst && nComponents > 2) {
+ return FALSE;
+ }
+ break;
+ case cmsSigRgbData:
+ if (bDst && nComponents != 3) {
+ return FALSE;
+ }
+ break;
+ case cmsSigCmykData:
+ if (bDst && nComponents != 4) {
+ return FALSE;
+ }
+ break;
+ default:
+ if (nComponents != 3) {
+ return FALSE;
+ }
+ break;
+ }
+ return TRUE;
+}
+void* IccLib_CreateTransform(const unsigned char* pSrcProfileData, unsigned int dwSrcProfileSize, int nSrcComponents,
+ const unsigned char* pDstProfileData, unsigned int dwDstProfileSize, int nDstComponents,
+ int intent, FX_DWORD dwSrcFormat = Icc_FORMAT_DEFAULT, FX_DWORD dwDstFormat = Icc_FORMAT_DEFAULT)
+{
+ cmsHPROFILE srcProfile = NULL;
+ cmsHPROFILE dstProfile = NULL;
+ cmsHTRANSFORM hTransform = NULL;
+ CLcmsCmm* pCmm = NULL;
+ srcProfile = cmsOpenProfileFromMem((void*)pSrcProfileData, dwSrcProfileSize);
+ if (srcProfile == NULL) {
+ return NULL;
+ }
+ if(pDstProfileData == NULL && dwDstProfileSize == 0 && nDstComponents == 3) {
+ dstProfile = cmsCreate_sRGBProfile();
+ } else {
+ dstProfile = cmsOpenProfileFromMem((void*)pDstProfileData, dwDstProfileSize);
+ }
+ if (dstProfile == NULL) {
+ cmsCloseProfile(srcProfile);
+ return NULL;
+ }
+ int srcFormat;
+ FX_BOOL bLab = FALSE;
+ cmsColorSpaceSignature srcCS = cmsGetColorSpace(srcProfile);
+ if (!CheckComponents(srcCS, nSrcComponents, FALSE)) {
+ cmsCloseProfile(srcProfile);
+ cmsCloseProfile(dstProfile);
+ return NULL;
+ }
+ if (srcCS == cmsSigLabData) {
+ srcFormat = COLORSPACE_SH(PT_Lab) | CHANNELS_SH(nSrcComponents) | BYTES_SH(0);
+ bLab = TRUE;
+ } else {
+ srcFormat = COLORSPACE_SH(PT_ANY) | CHANNELS_SH(nSrcComponents) | BYTES_SH(1);
+ if (srcCS == cmsSigRgbData && T_DOSWAP(dwSrcFormat)) {
+ srcFormat |= DOSWAP_SH(1);
+ }
+ }
+ cmsColorSpaceSignature dstCS = cmsGetColorSpace(dstProfile);
+ if (!CheckComponents(dstCS, nDstComponents, TRUE)) {
+ cmsCloseProfile(srcProfile);
+ cmsCloseProfile(dstProfile);
+ return NULL;
+ }
+ switch(dstCS) {
+ case cmsSigGrayData:
+ hTransform = cmsCreateTransform(srcProfile, srcFormat, dstProfile, TYPE_GRAY_8, intent, 0);
+ break;
+ case cmsSigRgbData:
+ hTransform = cmsCreateTransform(srcProfile, srcFormat, dstProfile, TYPE_BGR_8, intent, 0);
+ break;
+ case cmsSigCmykData:
+ hTransform = cmsCreateTransform(srcProfile, srcFormat, dstProfile,
+ T_DOSWAP(dwDstFormat) ? TYPE_KYMC_8 : TYPE_CMYK_8,
+ intent, 0);
+ break;
+ default:
+ break;
+ }
+ if (hTransform == NULL) {
+ cmsCloseProfile(srcProfile);
+ cmsCloseProfile(dstProfile);
+ return NULL;
+ }
+ pCmm = FX_NEW CLcmsCmm;
+ if (pCmm == NULL) {
+ return NULL;
+ }
+ pCmm->m_nSrcComponents = nSrcComponents;
+ pCmm->m_nDstComponents = nDstComponents;
+ pCmm->m_hTransform = hTransform;
+ pCmm->m_bLab = bLab;
+ cmsCloseProfile(srcProfile);
+ cmsCloseProfile(dstProfile);
+ return pCmm;
+}
+void* IccLib_CreateTransform_sRGB(const unsigned char* pProfileData, unsigned int dwProfileSize, int nComponents, int intent, FX_DWORD dwSrcFormat)
+{
+ return IccLib_CreateTransform(pProfileData, dwProfileSize, nComponents, NULL, 0, 3, intent, dwSrcFormat);
+}
+void IccLib_DestroyTransform(void* pTransform)
+{
+ if (pTransform == NULL) {
+ return;
+ }
+ cmsDeleteTransform(((CLcmsCmm*)pTransform)->m_hTransform);
+ delete (CLcmsCmm*)pTransform;
+}
+void IccLib_Translate(void* pTransform, FX_FLOAT* pSrcValues, FX_FLOAT* pDestValues)
+{
+ if (pTransform == NULL) {
+ return;
+ }
+ CLcmsCmm* p = (CLcmsCmm*)pTransform;
+ FX_BYTE output[4];
+ if (p->m_bLab) {
+ CFX_FixedBufGrow<double, 16> inputs(p->m_nSrcComponents);
+ double* input = inputs;
+ for (int i = 0; i < p->m_nSrcComponents; i ++) {
+ input[i] = pSrcValues[i];
+ }
+ cmsDoTransform(p->m_hTransform, input, output, 1);
+ } else {
+ CFX_FixedBufGrow<FX_BYTE, 16> inputs(p->m_nSrcComponents);
+ FX_BYTE* input = inputs;
+ for (int i = 0; i < p->m_nSrcComponents; i ++) {
+ if (pSrcValues[i] > 1.0f) {
+ input[i] = 255;
+ } else if (pSrcValues[i] < 0) {
+ input[i] = 0;
+ } else {
+ input[i] = (int)(pSrcValues[i] * 255.0f);
+ }
+ }
+ cmsDoTransform(p->m_hTransform, input, output, 1);
+ }
+ switch(p->m_nDstComponents) {
+ case 1:
+ pDestValues[0] = output[0] / 255.0f;
+ break;
+ case 3:
+ pDestValues[0] = output[2] / 255.0f;
+ pDestValues[1] = output[1] / 255.0f;
+ pDestValues[2] = output[0] / 255.0f;
+ break;
+ case 4:
+ pDestValues[0] = output[0] / 255.0f;
+ pDestValues[1] = output[1] / 255.0f;
+ pDestValues[2] = output[2] / 255.0f;
+ pDestValues[3] = output[3] / 255.0f;
+ break;
+ }
+}
+void IccLib_TranslateImage(void* pTransform, unsigned char* pDest, const unsigned char* pSrc, int pixels)
+{
+ cmsDoTransform(((CLcmsCmm*)pTransform)->m_hTransform, (void*)pSrc, pDest, pixels);
+}
+FX_LPVOID CreateProfile_Gray(double gamma)
+{
+ cmsCIExyY* D50 = (cmsCIExyY*)cmsD50_xyY();
+ if (!cmsWhitePointFromTemp(D50, 6504)) {
+ return NULL;
+ }
+ cmsToneCurve* curve = cmsBuildGamma(NULL, gamma);
+ if (curve == NULL) {
+ return NULL;
+ }
+ FX_LPVOID profile = cmsCreateGrayProfile(D50, curve);
+ cmsFreeToneCurve(curve);
+ return profile;
+}
+ICodec_IccModule::IccCS GetProfileCSFromHandle(FX_LPVOID pProfile)
+{
+ if (pProfile == NULL) {
+ return ICodec_IccModule::IccCS_Unknown;
+ }
+ switch (cmsGetColorSpace(pProfile)) {
+ case cmsSigXYZData:
+ return ICodec_IccModule::IccCS_XYZ;
+ case cmsSigLabData:
+ return ICodec_IccModule::IccCS_Lab;
+ case cmsSigLuvData:
+ return ICodec_IccModule::IccCS_Luv;
+ case cmsSigYCbCrData:
+ return ICodec_IccModule::IccCS_YCbCr;
+ case cmsSigYxyData:
+ return ICodec_IccModule::IccCS_Yxy;
+ case cmsSigRgbData:
+ return ICodec_IccModule::IccCS_Rgb;
+ case cmsSigGrayData:
+ return ICodec_IccModule::IccCS_Gray;
+ case cmsSigHsvData:
+ return ICodec_IccModule::IccCS_Hsv;
+ case cmsSigHlsData:
+ return ICodec_IccModule::IccCS_Hls;
+ case cmsSigCmykData:
+ return ICodec_IccModule::IccCS_Cmyk;
+ case cmsSigCmyData:
+ return ICodec_IccModule::IccCS_Cmy;
+ default:
+ return ICodec_IccModule::IccCS_Unknown;
+ }
+}
+ICodec_IccModule::IccCS CCodec_IccModule::GetProfileCS(FX_LPCBYTE pProfileData, unsigned int dwProfileSize)
+{
+ ICodec_IccModule::IccCS cs;
+ cmsHPROFILE hProfile = cmsOpenProfileFromMem((void*)pProfileData, dwProfileSize);
+ if (hProfile == NULL) {
+ return IccCS_Unknown;
+ }
+ cs = GetProfileCSFromHandle(hProfile);
+ if (hProfile) {
+ cmsCloseProfile(hProfile);
+ }
+ return cs;
+}
+ICodec_IccModule::IccCS CCodec_IccModule::GetProfileCS(IFX_FileRead* pFile)
+{
+ if (pFile == NULL) {
+ return IccCS_Unknown;
+ }
+ ICodec_IccModule::IccCS cs;
+ FX_DWORD dwSize = (FX_DWORD)pFile->GetSize();
+ FX_LPBYTE pBuf = FX_Alloc(FX_BYTE, dwSize);
+ if (pBuf == NULL) {
+ return IccCS_Unknown;
+ }
+ pFile->ReadBlock(pBuf, 0, dwSize);
+ cs = GetProfileCS(pBuf, dwSize);
+ FX_Free(pBuf);
+ return cs;
+}
+FX_DWORD TransferProfileType(FX_LPVOID pProfile, FX_DWORD dwFormat)
+{
+ cmsColorSpaceSignature cs = cmsGetColorSpace(pProfile);
+ switch (cs) {
+ case cmsSigXYZData:
+ return TYPE_XYZ_16;
+ case cmsSigLabData:
+ return TYPE_Lab_DBL;
+ case cmsSigLuvData:
+ return TYPE_YUV_8;
+ case cmsSigYCbCrData:
+ return TYPE_YCbCr_8;
+ case cmsSigYxyData:
+ return TYPE_Yxy_16;
+ case cmsSigRgbData:
+ return T_DOSWAP(dwFormat) ? TYPE_RGB_8 : TYPE_BGR_8;
+ case cmsSigGrayData:
+ return TYPE_GRAY_8;
+ case cmsSigHsvData:
+ return TYPE_HSV_8;
+ case cmsSigHlsData:
+ return TYPE_HLS_8;
+ case cmsSigCmykData:
+ return T_DOSWAP(dwFormat) ? TYPE_KYMC_8 : TYPE_CMYK_8;
+ case cmsSigCmyData:
+ return TYPE_CMY_8;
+ case cmsSigMCH5Data:
+ return T_DOSWAP(dwFormat) ? TYPE_KYMC5_8 : TYPE_CMYK5_8;
+ case cmsSigMCH6Data:
+ return TYPE_CMYK6_8;
+ case cmsSigMCH7Data:
+ return T_DOSWAP(dwFormat) ? TYPE_KYMC7_8 : TYPE_CMYK7_8;
+ case cmsSigMCH8Data:
+ return T_DOSWAP(dwFormat) ? TYPE_KYMC8_8 : TYPE_CMYK8_8;
+ case cmsSigMCH9Data:
+ return T_DOSWAP(dwFormat) ? TYPE_KYMC9_8 : TYPE_CMYK9_8;
+ case cmsSigMCHAData:
+ return T_DOSWAP(dwFormat) ? TYPE_KYMC10_8 : TYPE_CMYK10_8;
+ case cmsSigMCHBData:
+ return T_DOSWAP(dwFormat) ? TYPE_KYMC11_8 : TYPE_CMYK11_8;
+ case cmsSigMCHCData:
+ return T_DOSWAP(dwFormat) ? TYPE_KYMC12_8 : TYPE_CMYK12_8;
+ default:
+ return 0;
+ }
+}
+class CFX_IccProfileCache : public CFX_Object
+{
+public:
+ CFX_IccProfileCache();
+ ~CFX_IccProfileCache();
+ FX_LPVOID m_pProfile;
+ FX_DWORD m_dwRate;
+protected:
+ void Purge();
+};
+CFX_IccProfileCache::CFX_IccProfileCache()
+{
+ m_pProfile = NULL;
+ m_dwRate = 1;
+}
+CFX_IccProfileCache::~CFX_IccProfileCache()
+{
+ if (m_pProfile) {
+ cmsCloseProfile(m_pProfile);
+ }
+}
+void CFX_IccProfileCache::Purge()
+{
+}
+class CFX_IccTransformCache : public CFX_Object
+{
+public:
+ CFX_IccTransformCache(CLcmsCmm* pCmm = NULL);
+ ~CFX_IccTransformCache();
+ FX_LPVOID m_pIccTransform;
+ FX_DWORD m_dwRate;
+ CLcmsCmm* m_pCmm;
+protected:
+ void Purge();
+};
+CFX_IccTransformCache::CFX_IccTransformCache(CLcmsCmm* pCmm)
+{
+ m_pIccTransform = NULL;
+ m_dwRate = 1;
+ m_pCmm = pCmm;
+}
+CFX_IccTransformCache::~CFX_IccTransformCache()
+{
+ if (m_pIccTransform) {
+ cmsDeleteTransform(m_pIccTransform);
+ }
+ if (m_pCmm) {
+ FX_Free(m_pCmm);
+ }
+}
+void CFX_IccTransformCache::Purge()
+{
+}
+class CFX_ByteStringKey : public CFX_BinaryBuf
+{
+public:
+ CFX_ByteStringKey() : CFX_BinaryBuf() {}
+ CFX_ByteStringKey& operator << (FX_DWORD i);
+};
+CFX_ByteStringKey& CFX_ByteStringKey::operator << (FX_DWORD i)
+{
+ AppendBlock(&i, sizeof(FX_DWORD));
+ return *this;
+}
+FX_LPVOID CCodec_IccModule::CreateProfile(ICodec_IccModule::IccParam* pIccParam, Icc_CLASS ic, CFX_BinaryBuf* pTransformKey)
+{
+ CFX_IccProfileCache* pCache = NULL;
+ CFX_ByteStringKey key;
+ CFX_ByteString text;
+ key << pIccParam->ColorSpace << (pIccParam->dwProfileType | ic << 8);
+ FX_BYTE ID[16];
+ switch (pIccParam->dwProfileType) {
+ case Icc_PARAMTYPE_NONE:
+ return NULL;
+ case Icc_PARAMTYPE_BUFFER:
+ MD5ComputeID(pIccParam->pProfileData, pIccParam->dwProfileSize, ID);
+ break;
+ case Icc_PARAMTYPE_PARAM:
+ FXSYS_memset32(ID, 0, 16);
+ switch (pIccParam->ColorSpace) {
+ case IccCS_Gray:
+ text.Format("%lf", pIccParam->Gamma);
+ break;
+ default:
+ ;
+ }
+ MD5ComputeID(text.GetBuffer(0), text.GetLength(), ID);
+ break;
+ default:
+ ;
+ }
+ key.AppendBlock(ID, 16);
+ CFX_ByteString ProfileKey(key.GetBuffer(), key.GetSize());
+ ASSERT(pTransformKey);
+ pTransformKey->AppendBlock(ProfileKey.GetBuffer(0), ProfileKey.GetLength());
+ if (!m_MapProfile.Lookup(ProfileKey, (FX_LPVOID&)pCache)) {
+ pCache = FX_NEW CFX_IccProfileCache;
+ if (pCache == NULL) {
+ return NULL;
+ }
+ switch (pIccParam->dwProfileType) {
+ case Icc_PARAMTYPE_BUFFER:
+ pCache->m_pProfile = cmsOpenProfileFromMem(pIccParam->pProfileData, pIccParam->dwProfileSize);
+ break;
+ case Icc_PARAMTYPE_PARAM:
+ switch (pIccParam->ColorSpace) {
+ case IccCS_Rgb:
+ pCache->m_pProfile = cmsCreate_sRGBProfile();
+ break;
+ case IccCS_Gray:
+ pCache->m_pProfile = CreateProfile_Gray(pIccParam->Gamma);
+ break;
+ default:
+ break;
+ }
+ break;
+ default:
+ break;
+ }
+ m_MapProfile.SetAt(ProfileKey, pCache);
+ } else {
+ pCache->m_dwRate++;
+ }
+ return pCache->m_pProfile;
+}
+FX_LPVOID CCodec_IccModule::CreateTransform(ICodec_IccModule::IccParam* pInputParam,
+ ICodec_IccModule::IccParam* pOutputParam,
+ ICodec_IccModule::IccParam* pProofParam,
+ FX_DWORD dwIntent, FX_DWORD dwFlag, FX_DWORD dwPrfIntent, FX_DWORD dwPrfFlag)
+{
+ CLcmsCmm* pCmm = NULL;
+ ASSERT(pInputParam && pOutputParam);
+ CFX_ByteStringKey key;
+ FX_LPVOID pInputProfile = CreateProfile(pInputParam, Icc_CLASS_INPUT, &key);
+ if (pInputProfile == NULL) {
+ return NULL;
+ }
+ FX_LPVOID pOutputProfile = CreateProfile(pOutputParam, Icc_CLASS_OUTPUT, &key);
+ if (pOutputProfile == NULL) {
+ return NULL;
+ }
+ FX_DWORD dwInputProfileType = TransferProfileType(pInputProfile, pInputParam->dwFormat);
+ FX_DWORD dwOutputProfileType = TransferProfileType(pOutputProfile, pOutputParam->dwFormat);
+ if (dwInputProfileType == 0 || dwOutputProfileType == 0) {
+ return NULL;
+ }
+ FX_LPVOID pProofProfile = NULL;
+ if (pProofParam) {
+ pProofProfile = CreateProfile(pProofParam, Icc_CLASS_PROOF, &key);
+ }
+ key << dwInputProfileType << dwOutputProfileType << dwIntent << dwFlag << (pProofProfile != NULL) << dwPrfIntent << dwPrfFlag;
+ CFX_ByteStringC TransformKey(key.GetBuffer(), key.GetSize());
+ CFX_IccTransformCache* pTransformCache;
+ if (!m_MapTranform.Lookup(TransformKey, (FX_LPVOID&)pTransformCache)) {
+ pCmm = FX_Alloc(CLcmsCmm, 1);
+ if (pCmm == NULL) {
+ return NULL;
+ }
+ pCmm->m_nSrcComponents = T_CHANNELS(dwInputProfileType);
+ pCmm->m_nDstComponents = T_CHANNELS(dwOutputProfileType);
+ pCmm->m_bLab = T_COLORSPACE(pInputParam->dwFormat) == PT_Lab;
+ pTransformCache = FX_NEW CFX_IccTransformCache(pCmm);
+ if (pTransformCache == NULL) {
+ FX_Free(pCmm);
+ return NULL;
+ }
+ if (pProofProfile) {
+ pTransformCache->m_pIccTransform = cmsCreateProofingTransform(pInputProfile, dwInputProfileType, pOutputProfile, dwOutputProfileType,
+ pProofProfile, dwIntent, dwPrfIntent, dwPrfFlag);
+ } else {
+ pTransformCache->m_pIccTransform = cmsCreateTransform(pInputProfile, dwInputProfileType, pOutputProfile, dwOutputProfileType,
+ dwIntent, dwFlag);
+ }
+ pCmm->m_hTransform = pTransformCache->m_pIccTransform;
+ m_MapTranform.SetAt(TransformKey, pTransformCache);
+ } else {
+ pTransformCache->m_dwRate++;
+ }
+ return pTransformCache->m_pCmm;
+}
+CCodec_IccModule::~CCodec_IccModule()
+{
+ FX_POSITION pos = m_MapProfile.GetStartPosition();
+ CFX_ByteString key;
+ CFX_IccProfileCache* pProfileCache;
+ while (pos) {
+ m_MapProfile.GetNextAssoc(pos, key, (FX_LPVOID&)pProfileCache);
+ if (pProfileCache) {
+ delete pProfileCache;
+ }
+ }
+ pos = m_MapTranform.GetStartPosition();
+ CFX_IccTransformCache* pTransformCache;
+ while (pos) {
+ m_MapTranform.GetNextAssoc(pos, key, (FX_LPVOID&)pTransformCache);
+ if (pTransformCache) {
+ delete pTransformCache;
+ }
+ }
+}
+void* CCodec_IccModule::CreateTransform_sRGB(FX_LPCBYTE pProfileData, unsigned int dwProfileSize, int nComponents, int intent, FX_DWORD dwSrcFormat)
+{
+ return IccLib_CreateTransform_sRGB(pProfileData, dwProfileSize, nComponents, intent, dwSrcFormat);
+}
+void* CCodec_IccModule::CreateTransform_CMYK(FX_LPCBYTE pSrcProfileData, unsigned int dwSrcProfileSize, int nSrcComponents,
+ FX_LPCBYTE pDstProfileData, unsigned int dwDstProfileSize, int intent,
+ FX_DWORD dwSrcFormat , FX_DWORD dwDstFormat)
+{
+ return IccLib_CreateTransform(pSrcProfileData, dwSrcProfileSize, nSrcComponents,
+ pDstProfileData, dwDstProfileSize, 4, intent, dwSrcFormat, dwDstFormat);
+}
+void CCodec_IccModule::DestroyTransform(void* pTransform)
+{
+ IccLib_DestroyTransform(pTransform);
+}
+void CCodec_IccModule::Translate(void* pTransform, FX_FLOAT* pSrcValues, FX_FLOAT* pDestValues)
+{
+ IccLib_Translate(pTransform, pSrcValues, pDestValues);
+}
+void CCodec_IccModule::TranslateScanline(void* pTransform, FX_LPBYTE pDest, FX_LPCBYTE pSrc, int pixels)
+{
+ IccLib_TranslateImage(pTransform, pDest, pSrc, pixels);
+}
+const FX_BYTE g_CMYKSamples[81 * 81 * 3] = {
+ 255, 255, 255, 225, 226, 228, 199, 200, 202, 173, 174, 178, 147, 149, 152, 123, 125, 128, 99, 99, 102, 69, 70, 71, 34, 30, 31,
+ 255, 253, 229, 226, 224, 203, 200, 199, 182, 173, 173, 158, 149, 148, 135, 125, 124, 113, 99, 99, 90, 70, 69, 63, 33, 29, 24,
+ 255, 251, 204, 228, 223, 182, 201, 198, 163, 174, 172, 142, 150, 147, 122, 125, 123, 101, 99, 98, 80, 70, 68, 54, 32, 28, 16,
+ 255, 249, 179, 230, 222, 160, 203, 197, 144, 174, 170, 124, 150, 145, 105, 125, 122, 88, 99, 97, 69, 70, 68, 46, 31, 28, 6,
+ 255, 247, 154, 229, 220, 138, 203, 195, 122, 176, 169, 107, 150, 145, 91, 125, 121, 74, 100, 96, 57, 70, 67, 35, 29, 26, 0,
+ 255, 246, 128, 231, 217, 114, 205, 194, 101, 176, 167, 88, 150, 144, 75, 125, 120, 60, 100, 96, 44, 70, 66, 24, 28, 26, 0,
+ 255, 244, 96, 231, 217, 87, 203, 192, 78, 175, 167, 66, 150, 143, 56, 125, 119, 43, 100, 95, 29, 69, 66, 7, 26, 26, 0,
+ 255, 243, 51, 232, 215, 51, 204, 191, 43, 176, 165, 38, 150, 142, 28, 125, 118, 17, 99, 94, 0, 68, 65, 0, 24, 25, 0,
+ 255, 241, 0, 231, 215, 0, 203, 190, 0, 176, 164, 0, 150, 141, 0, 126, 117, 0, 99, 93, 0, 68, 65, 0, 24, 25, 0,
+ 252, 228, 238, 222, 201, 211, 197, 180, 190, 171, 156, 166, 147, 133, 143, 123, 111, 119, 99, 88, 94, 71, 61, 66, 34, 22, 26,
+ 254, 226, 213, 224, 201, 191, 199, 179, 171, 172, 155, 148, 147, 133, 128, 123, 110, 106, 98, 87, 83, 70, 59, 57, 33, 21, 18,
+ 254, 224, 191, 224, 199, 172, 200, 177, 153, 173, 154, 133, 147, 132, 115, 123, 109, 94, 98, 86, 74, 70, 59, 49, 32, 21, 9,
+ 255, 222, 168, 227, 198, 150, 200, 175, 135, 173, 153, 118, 148, 130, 99, 123, 109, 82, 98, 86, 64, 69, 58, 40, 31, 19, 0,
+ 255, 221, 145, 227, 196, 129, 201, 174, 115, 173, 151, 99, 148, 129, 85, 124, 108, 69, 98, 85, 52, 69, 58, 30, 30, 19, 0,
+ 255, 219, 121, 227, 195, 109, 201, 174, 97, 174, 150, 83, 148, 129, 70, 124, 107, 55, 98, 84, 40, 69, 58, 19, 28, 18, 0,
+ 255, 218, 92, 229, 194, 82, 202, 173, 75, 174, 150, 63, 149, 128, 51, 124, 106, 39, 98, 84, 24, 68, 57, 3, 26, 18, 0,
+ 255, 217, 54, 228, 193, 52, 201, 172, 46, 174, 148, 36, 148, 127, 27, 123, 105, 14, 98, 83, 0, 68, 56, 0, 25, 18, 0,
+ 255, 216, 0, 229, 192, 2, 202, 171, 4, 173, 148, 0, 148, 126, 0, 124, 105, 0, 98, 83, 0, 68, 56, 0, 24, 17, 0,
+ 249, 204, 223, 219, 181, 199, 195, 160, 178, 170, 140, 156, 146, 119, 134, 123, 99, 112, 98, 77, 88, 70, 52, 61, 34, 11, 20,
+ 250, 201, 200, 221, 180, 178, 197, 159, 161, 171, 139, 139, 147, 119, 120, 123, 98, 99, 98, 77, 78, 69, 51, 52, 34, 11, 10,
+ 252, 201, 180, 223, 179, 162, 197, 159, 144, 170, 138, 125, 146, 117, 107, 122, 97, 89, 98, 76, 69, 69, 50, 44, 32, 11, 2,
+ 252, 199, 158, 222, 177, 143, 199, 158, 127, 171, 137, 110, 147, 117, 93, 122, 96, 76, 97, 75, 58, 69, 50, 36, 32, 10, 0,
+ 253, 198, 137, 223, 177, 123, 198, 156, 110, 171, 136, 95, 146, 116, 80, 122, 96, 65, 97, 75, 47, 69, 50, 25, 30, 10, 0,
+ 254, 197, 115, 225, 175, 104, 198, 156, 92, 172, 135, 79, 147, 115, 66, 123, 95, 52, 98, 74, 37, 69, 49, 15, 29, 10, 0,
+ 254, 196, 89, 224, 175, 80, 199, 154, 70, 172, 134, 59, 146, 114, 48, 122, 95, 36, 97, 74, 21, 68, 49, 0, 27, 9, 0,
+ 255, 195, 57, 225, 173, 52, 198, 154, 44, 172, 133, 36, 147, 113, 26, 123, 94, 14, 98, 74, 0, 68, 49, 0, 26, 10, 0,
+ 254, 194, 15, 225, 172, 12, 198, 153, 7, 172, 132, 3, 146, 113, 0, 123, 93, 0, 98, 73, 0, 68, 49, 0, 26, 9, 0,
+ 246, 178, 209, 218, 159, 186, 194, 140, 166, 168, 122, 145, 144, 104, 125, 121, 85, 103, 97, 65, 81, 69, 41, 55, 34, 0, 12,
+ 248, 176, 186, 219, 157, 166, 195, 139, 149, 168, 121, 130, 144, 103, 111, 121, 85, 91, 97, 65, 71, 69, 41, 46, 34, 0, 4,
+ 249, 175, 168, 220, 156, 150, 196, 139, 135, 169, 121, 116, 144, 103, 100, 122, 84, 83, 98, 65, 63, 70, 41, 39, 33, 0, 0,
+ 249, 175, 148, 220, 155, 133, 196, 138, 119, 169, 120, 103, 145, 101, 87, 121, 83, 71, 97, 65, 54, 69, 41, 31, 32, 0, 0,
+ 249, 173, 128, 222, 154, 115, 195, 137, 102, 170, 119, 88, 145, 101, 74, 122, 83, 59, 97, 64, 43, 68, 40, 20, 30, 0, 0,
+ 250, 172, 108, 221, 154, 98, 195, 136, 86, 170, 118, 73, 145, 100, 61, 122, 82, 48, 97, 63, 32, 69, 40, 11, 28, 0, 0,
+ 250, 171, 85, 221, 153, 76, 196, 136, 67, 170, 117, 56, 145, 99, 44, 121, 82, 33, 97, 63, 17, 68, 40, 0, 28, 0, 0,
+ 251, 171, 58, 222, 152, 50, 197, 135, 43, 169, 117, 34, 146, 99, 25, 121, 81, 10, 96, 63, 0, 68, 40, 0, 27, 0, 0,
+ 250, 170, 26, 222, 151, 19, 196, 134, 13, 169, 116, 4, 145, 99, 0, 122, 81, 0, 97, 63, 0, 67, 40, 0, 26, 0, 0,
+ 244, 153, 194, 215, 136, 173, 192, 121, 155, 167, 104, 135, 143, 89, 115, 121, 72, 96, 97, 54, 75, 70, 31, 49, 34, 0, 6,
+ 245, 153, 173, 216, 136, 155, 192, 120, 138, 167, 104, 121, 144, 88, 103, 121, 71, 85, 97, 54, 66, 69, 31, 42, 34, 0, 0,
+ 246, 152, 157, 217, 135, 140, 193, 120, 126, 167, 103, 109, 143, 88, 92, 121, 72, 76, 97, 54, 58, 69, 31, 35, 33, 0, 0,
+ 245, 150, 139, 218, 134, 125, 193, 119, 111, 167, 103, 96, 144, 87, 80, 121, 71, 66, 96, 53, 49, 68, 31, 26, 32, 0, 0,
+ 246, 151, 122, 218, 133, 108, 194, 118, 96, 168, 102, 81, 144, 86, 69, 120, 71, 55, 95, 53, 39, 68, 30, 17, 31, 0, 0,
+ 248, 150, 103, 218, 133, 91, 193, 118, 81, 168, 102, 69, 143, 86, 56, 120, 70, 43, 96, 53, 28, 68, 31, 6, 29, 0, 0,
+ 247, 149, 81, 218, 132, 72, 194, 117, 62, 168, 101, 52, 144, 86, 42, 121, 70, 29, 96, 52, 13, 68, 30, 0, 28, 0, 0,
+ 247, 148, 55, 219, 131, 50, 194, 117, 43, 167, 101, 32, 144, 85, 22, 120, 69, 8, 96, 52, 0, 67, 30, 0, 27, 0, 0,
+ 247, 147, 29, 218, 131, 24, 194, 116, 20, 168, 100, 11, 144, 85, 0, 120, 69, 0, 96, 52, 0, 67, 30, 0, 26, 0, 0,
+ 242, 130, 179, 214, 114, 160, 190, 101, 143, 166, 87, 125, 143, 72, 107, 120, 58, 88, 96, 42, 68, 69, 17, 44, 35, 0, 0,
+ 243, 129, 161, 215, 114, 143, 191, 101, 128, 166, 87, 113, 143, 73, 96, 120, 58, 79, 96, 41, 60, 69, 18, 37, 33, 0, 0,
+ 243, 129, 146, 216, 114, 130, 192, 101, 117, 166, 87, 101, 143, 72, 86, 121, 58, 69, 96, 42, 52, 69, 18, 29, 31, 0, 0,
+ 243, 128, 130, 216, 114, 115, 191, 101, 102, 165, 86, 88, 142, 72, 75, 120, 58, 60, 95, 42, 43, 68, 19, 21, 30, 0, 0,
+ 244, 127, 112, 217, 113, 101, 192, 99, 89, 166, 85, 75, 142, 72, 63, 119, 57, 50, 96, 41, 35, 68, 19, 13, 30, 0, 0,
+ 244, 127, 96, 216, 112, 86, 191, 99, 75, 166, 86, 64, 143, 72, 52, 120, 57, 40, 95, 41, 24, 67, 20, 1, 29, 0, 0,
+ 245, 126, 77, 216, 113, 68, 191, 100, 59, 166, 85, 49, 142, 71, 38, 119, 57, 26, 95, 41, 10, 67, 20, 0, 28, 0, 0,
+ 244, 126, 55, 216, 112, 48, 191, 99, 40, 166, 85, 31, 143, 71, 20, 119, 57, 6, 95, 42, 0, 67, 20, 0, 28, 0, 0,
+ 245, 126, 33, 217, 112, 26, 192, 99, 22, 166, 84, 11, 142, 70, 0, 119, 57, 0, 95, 41, 0, 66, 20, 0, 27, 0, 0,
+ 241, 102, 167, 213, 90, 149, 189, 79, 133, 165, 66, 115, 141, 54, 98, 119, 41, 81, 96, 25, 63, 69, 0, 38, 30, 0, 0,
+ 241, 102, 149, 213, 90, 133, 189, 79, 119, 165, 66, 103, 142, 55, 88, 119, 41, 71, 96, 25, 53, 69, 0, 31, 28, 0, 0,
+ 241, 102, 135, 214, 90, 121, 190, 79, 108, 165, 66, 92, 141, 55, 78, 119, 42, 63, 96, 26, 46, 69, 0, 24, 28, 0, 0,
+ 241, 101, 120, 214, 90, 107, 189, 79, 95, 165, 67, 83, 141, 54, 68, 118, 41, 54, 95, 27, 39, 68, 0, 16, 27, 0, 0,
+ 241, 102, 106, 213, 90, 93, 189, 78, 82, 164, 67, 70, 141, 55, 58, 118, 42, 45, 94, 27, 29, 67, 2, 6, 27, 0, 0,
+ 242, 101, 90, 214, 89, 79, 190, 79, 69, 166, 67, 59, 141, 55, 47, 118, 41, 35, 95, 27, 19, 67, 3, 0, 26, 0, 0,
+ 242, 102, 72, 213, 89, 63, 191, 79, 56, 164, 67, 45, 141, 55, 34, 118, 42, 22, 94, 28, 6, 67, 3, 0, 26, 0, 0,
+ 242, 100, 51, 214, 89, 45, 190, 78, 38, 164, 67, 30, 141, 55, 18, 118, 42, 3, 95, 28, 0, 66, 4, 0, 26, 0, 0,
+ 243, 100, 33, 214, 90, 27, 190, 78, 22, 165, 67, 13, 141, 55, 0, 118, 43, 0, 94, 29, 0, 66, 5, 0, 26, 0, 0,
+ 237, 69, 153, 211, 58, 135, 187, 51, 121, 163, 41, 105, 141, 28, 90, 118, 15, 73, 96, 0, 56, 68, 0, 33, 25, 0, 0,
+ 239, 67, 137, 212, 60, 123, 189, 50, 110, 163, 41, 94, 141, 29, 79, 118, 17, 65, 95, 0, 48, 69, 0, 26, 25, 0, 0,
+ 240, 69, 124, 211, 60, 111, 188, 50, 98, 163, 42, 85, 141, 31, 72, 118, 18, 57, 94, 0, 41, 68, 0, 19, 25, 0, 0,
+ 240, 70, 112, 212, 61, 99, 188, 52, 87, 163, 41, 74, 140, 31, 62, 118, 20, 48, 94, 2, 32, 68, 0, 11, 24, 0, 0,
+ 239, 70, 98, 212, 62, 86, 188, 53, 77, 164, 42, 64, 140, 32, 52, 118, 20, 40, 94, 3, 24, 67, 0, 3, 23, 0, 0,
+ 239, 71, 85, 212, 61, 74, 187, 53, 65, 163, 44, 54, 140, 34, 43, 118, 22, 30, 95, 3, 14, 67, 0, 0, 23, 0, 0,
+ 239, 70, 67, 212, 62, 59, 188, 53, 51, 163, 45, 42, 141, 34, 31, 117, 22, 17, 94, 5, 2, 66, 0, 0, 23, 0, 0,
+ 239, 71, 50, 213, 62, 43, 188, 54, 37, 164, 45, 28, 139, 34, 16, 117, 22, 2, 94, 7, 0, 65, 0, 0, 23, 0, 0,
+ 240, 71, 34, 212, 63, 29, 189, 54, 24, 163, 46, 15, 139, 36, 2, 117, 25, 0, 94, 8, 0, 66, 0, 0, 23, 0, 0,
+ 237, 0, 140, 209, 0, 124, 186, 0, 112, 162, 0, 97, 141, 0, 82, 118, 0, 67, 95, 0, 49, 68, 0, 27, 20, 0, 0,
+ 237, 0, 126, 210, 0, 113, 187, 0, 99, 163, 0, 86, 139, 0, 72, 118, 0, 58, 95, 0, 42, 67, 0, 20, 20, 0, 0,
+ 237, 1, 114, 209, 1, 102, 187, 0, 90, 163, 0, 78, 139, 0, 64, 118, 0, 50, 95, 0, 35, 67, 0, 13, 20, 0, 0,
+ 236, 16, 102, 209, 7, 91, 186, 0, 80, 162, 0, 68, 139, 0, 56, 117, 0, 43, 94, 0, 27, 67, 0, 6, 20, 0, 0,
+ 238, 15, 89, 209, 13, 79, 186, 6, 69, 162, 0, 58, 139, 0, 47, 117, 0, 34, 93, 0, 20, 66, 0, 2, 20, 0, 0,
+ 237, 20, 78, 210, 12, 68, 187, 4, 59, 163, 0, 49, 139, 0, 38, 116, 0, 26, 94, 0, 11, 66, 0, 0, 20, 0, 0,
+ 237, 25, 64, 210, 18, 56, 186, 11, 48, 162, 4, 39, 138, 0, 27, 117, 0, 14, 93, 0, 0, 66, 0, 0, 20, 0, 0,
+ 238, 25, 48, 210, 22, 43, 186, 15, 35, 162, 8, 26, 140, 0, 14, 117, 0, 0, 93, 0, 0, 65, 0, 0, 20, 0, 0,
+ 238, 28, 35, 210, 21, 30, 187, 15, 24, 162, 8, 16, 139, 1, 2, 117, 0, 0, 93, 0, 0, 65, 0, 0, 22, 0, 0,
+ 219, 242, 252, 195, 214, 225, 172, 191, 201, 148, 165, 175, 127, 142, 150, 106, 119, 126, 84, 95, 101, 58, 66, 72, 24, 27, 32,
+ 222, 239, 226, 196, 213, 202, 173, 189, 180, 150, 165, 158, 129, 141, 135, 107, 118, 113, 85, 94, 90, 58, 66, 63, 21, 26, 24,
+ 223, 237, 203, 198, 211, 182, 175, 188, 163, 152, 164, 141, 129, 140, 121, 107, 117, 101, 85, 93, 80, 58, 64, 54, 21, 26, 18,
+ 226, 236, 179, 201, 210, 160, 177, 187, 143, 153, 162, 125, 130, 139, 106, 108, 116, 89, 85, 92, 69, 58, 64, 45, 20, 25, 8,
+ 227, 234, 153, 201, 208, 139, 178, 185, 124, 154, 161, 107, 131, 138, 91, 108, 115, 75, 85, 91, 58, 58, 63, 35, 17, 25, 0,
+ 229, 233, 130, 203, 207, 116, 178, 184, 104, 154, 160, 90, 131, 137, 76, 109, 114, 62, 85, 90, 46, 58, 63, 25, 16, 24, 0,
+ 230, 231, 100, 202, 205, 90, 179, 183, 80, 154, 159, 69, 131, 136, 57, 109, 113, 46, 86, 90, 32, 58, 63, 10, 14, 24, 0,
+ 230, 230, 65, 204, 204, 58, 180, 182, 52, 155, 157, 44, 132, 135, 35, 110, 113, 24, 86, 89, 9, 57, 62, 0, 11, 24, 0,
+ 232, 230, 19, 204, 204, 19, 180, 181, 17, 155, 157, 10, 131, 134, 2, 109, 112, 0, 85, 89, 0, 57, 62, 0, 10, 23, 0,
+ 218, 216, 236, 194, 192, 211, 172, 171, 188, 149, 149, 164, 128, 127, 141, 106, 106, 119, 84, 84, 94, 59, 57, 66, 25, 18, 26,
+ 221, 214, 211, 196, 191, 190, 174, 170, 170, 150, 148, 148, 128, 126, 127, 107, 105, 106, 85, 83, 84, 59, 56, 58, 23, 17, 18,
+ 222, 213, 190, 197, 189, 170, 175, 169, 153, 151, 147, 133, 129, 126, 113, 108, 105, 94, 85, 82, 74, 59, 56, 49, 22, 17, 11,
+ 224, 211, 168, 199, 188, 151, 175, 168, 135, 152, 146, 117, 129, 124, 99, 107, 103, 82, 84, 82, 64, 59, 55, 41, 21, 17, 1,
+ 224, 210, 145, 199, 187, 130, 176, 166, 117, 152, 145, 101, 129, 123, 86, 107, 103, 70, 85, 81, 53, 58, 55, 31, 19, 17, 0,
+ 227, 208, 123, 200, 186, 110, 177, 165, 98, 153, 143, 84, 130, 122, 70, 108, 102, 57, 85, 80, 41, 58, 54, 20, 18, 16, 0,
+ 227, 208, 97, 202, 185, 86, 177, 164, 77, 153, 142, 65, 130, 122, 54, 108, 101, 42, 85, 80, 27, 58, 54, 7, 16, 16, 0,
+ 228, 206, 66, 202, 184, 58, 178, 163, 50, 154, 141, 42, 131, 121, 33, 109, 101, 21, 86, 79, 5, 58, 54, 0, 13, 16, 0,
+ 228, 206, 29, 202, 183, 25, 178, 163, 20, 154, 141, 15, 131, 121, 5, 108, 100, 0, 85, 79, 0, 58, 53, 0, 13, 16, 0,
+ 217, 193, 221, 193, 172, 198, 172, 153, 178, 149, 133, 154, 128, 114, 132, 107, 94, 111, 85, 74, 89, 59, 49, 61, 25, 8, 22,
+ 219, 191, 198, 195, 171, 178, 173, 153, 159, 149, 132, 139, 128, 113, 119, 107, 94, 100, 85, 73, 79, 59, 48, 52, 25, 7, 14,
+ 221, 191, 180, 196, 170, 160, 174, 152, 144, 150, 132, 125, 129, 113, 107, 107, 93, 89, 85, 73, 69, 59, 48, 45, 23, 7, 4,
+ 222, 189, 159, 197, 169, 142, 174, 151, 127, 151, 131, 110, 129, 112, 94, 108, 93, 78, 85, 72, 60, 58, 47, 37, 22, 7, 0,
+ 223, 188, 138, 197, 168, 123, 175, 150, 109, 151, 130, 95, 130, 111, 81, 108, 92, 65, 85, 72, 49, 59, 47, 27, 21, 7, 0,
+ 224, 187, 118, 198, 167, 105, 176, 149, 93, 152, 129, 79, 130, 110, 68, 108, 91, 54, 85, 71, 38, 59, 47, 17, 18, 7, 0,
+ 224, 187, 93, 199, 166, 83, 176, 148, 73, 152, 128, 62, 129, 109, 51, 108, 90, 39, 85, 71, 25, 58, 46, 3, 16, 8, 0,
+ 226, 186, 64, 200, 165, 57, 177, 147, 50, 153, 127, 40, 130, 108, 31, 108, 90, 19, 85, 70, 3, 58, 46, 0, 16, 8, 0,
+ 227, 185, 35, 200, 165, 30, 176, 146, 25, 152, 127, 18, 130, 108, 7, 108, 89, 0, 85, 70, 0, 57, 46, 0, 14, 8, 0,
+ 216, 169, 205, 192, 150, 184, 171, 134, 164, 149, 116, 144, 128, 99, 124, 107, 81, 103, 85, 63, 81, 60, 39, 55, 26, 0, 15,
+ 217, 168, 186, 193, 150, 165, 172, 134, 149, 150, 116, 130, 128, 99, 111, 107, 81, 92, 85, 62, 72, 59, 39, 47, 25, 0, 6,
+ 219, 168, 168, 194, 149, 150, 173, 133, 135, 150, 116, 117, 128, 98, 99, 107, 80, 82, 86, 62, 63, 59, 38, 39, 24, 0, 0,
+ 219, 166, 148, 195, 149, 133, 173, 133, 119, 150, 115, 103, 128, 98, 88, 107, 80, 72, 85, 61, 54, 59, 38, 32, 23, 0, 0,
+ 220, 166, 129, 196, 148, 116, 174, 132, 103, 151, 114, 89, 129, 97, 75, 107, 79, 60, 85, 61, 44, 59, 38, 22, 21, 0, 0,
+ 222, 164, 110, 197, 147, 99, 175, 131, 87, 151, 113, 75, 129, 96, 63, 107, 79, 49, 85, 61, 33, 58, 38, 12, 19, 0, 0,
+ 222, 164, 88, 197, 146, 79, 174, 130, 69, 151, 113, 58, 129, 95, 47, 107, 78, 35, 85, 60, 20, 58, 38, 0, 18, 0, 0,
+ 223, 164, 63, 198, 145, 55, 175, 129, 48, 151, 112, 39, 129, 95, 29, 107, 78, 16, 85, 60, 1, 58, 38, 0, 17, 0, 0,
+ 223, 163, 36, 198, 145, 32, 174, 129, 26, 151, 111, 17, 129, 95, 7, 107, 78, 0, 84, 60, 0, 57, 37, 0, 15, 0, 0,
+ 215, 147, 192, 191, 130, 172, 170, 116, 153, 148, 100, 133, 127, 85, 115, 107, 69, 96, 85, 51, 75, 60, 28, 50, 25, 0, 8,
+ 217, 146, 173, 192, 130, 154, 171, 115, 138, 149, 100, 121, 128, 84, 103, 107, 68, 85, 85, 51, 66, 60, 28, 42, 25, 0, 0,
+ 217, 145, 157, 193, 129, 140, 173, 115, 125, 149, 100, 109, 128, 84, 92, 107, 68, 76, 85, 51, 58, 59, 28, 35, 23, 0, 0,
+ 218, 145, 140, 193, 129, 125, 172, 114, 110, 149, 99, 96, 128, 83, 81, 107, 67, 65, 84, 51, 49, 59, 29, 27, 22, 0, 0,
+ 219, 144, 121, 194, 128, 108, 172, 113, 96, 149, 98, 83, 128, 83, 69, 107, 68, 55, 85, 50, 40, 59, 28, 18, 20, 0, 0,
+ 220, 143, 104, 195, 128, 93, 173, 114, 82, 150, 98, 69, 127, 82, 58, 107, 67, 45, 85, 50, 30, 59, 28, 7, 19, 0, 0,
+ 220, 143, 84, 195, 127, 74, 173, 113, 65, 149, 97, 55, 128, 82, 44, 106, 67, 32, 84, 50, 16, 58, 28, 0, 18, 0, 0,
+ 221, 142, 62, 196, 126, 53, 173, 112, 46, 150, 97, 37, 128, 82, 26, 107, 66, 14, 84, 50, 0, 58, 28, 0, 16, 0, 0,
+ 222, 142, 38, 196, 126, 34, 174, 112, 27, 150, 96, 17, 128, 82, 6, 106, 66, 0, 84, 50, 0, 57, 29, 0, 16, 0, 0,
+ 214, 123, 179, 191, 110, 159, 169, 98, 143, 147, 84, 124, 126, 70, 106, 107, 55, 88, 85, 39, 69, 60, 15, 45, 23, 0, 2,
+ 216, 123, 161, 192, 110, 144, 170, 98, 129, 148, 84, 112, 127, 70, 95, 107, 55, 79, 85, 39, 61, 60, 15, 37, 20, 0, 0,
+ 217, 122, 145, 192, 110, 130, 170, 97, 116, 149, 84, 101, 127, 70, 85, 106, 55, 70, 85, 39, 53, 59, 16, 30, 19, 0, 0,
+ 217, 123, 131, 192, 109, 116, 171, 96, 103, 149, 83, 89, 127, 70, 75, 106, 55, 60, 85, 40, 45, 59, 16, 23, 17, 0, 0,
+ 217, 122, 114, 193, 109, 101, 172, 96, 91, 149, 82, 77, 128, 69, 64, 106, 55, 50, 84, 39, 35, 59, 17, 14, 17, 0, 0,
+ 218, 122, 98, 194, 108, 87, 171, 96, 77, 149, 82, 65, 127, 69, 52, 106, 55, 40, 84, 40, 25, 59, 18, 3, 15, 0, 0,
+ 219, 122, 80, 193, 108, 70, 172, 95, 61, 149, 82, 51, 127, 69, 40, 106, 55, 28, 84, 39, 12, 58, 17, 0, 13, 0, 0,
+ 219, 121, 59, 194, 108, 52, 172, 96, 44, 149, 82, 35, 127, 68, 24, 106, 55, 11, 84, 40, 0, 57, 18, 0, 13, 0, 0,
+ 219, 121, 40, 193, 108, 33, 172, 95, 26, 149, 81, 19, 128, 68, 6, 106, 54, 0, 84, 39, 0, 57, 18, 0, 13, 0, 0,
+ 213, 99, 165, 189, 87, 148, 169, 76, 132, 147, 64, 115, 126, 52, 98, 106, 39, 81, 85, 23, 63, 60, 0, 39, 16, 0, 0,
+ 214, 98, 149, 191, 87, 133, 170, 76, 119, 148, 65, 103, 127, 53, 88, 106, 39, 72, 85, 24, 55, 60, 0, 32, 15, 0, 0,
+ 215, 99, 136, 191, 87, 121, 170, 77, 108, 148, 65, 93, 126, 53, 79, 106, 40, 64, 85, 24, 47, 59, 0, 25, 14, 0, 0,
+ 215, 99, 121, 192, 87, 108, 170, 77, 96, 148, 65, 82, 126, 53, 69, 106, 40, 55, 85, 25, 39, 59, 0, 18, 13, 0, 0,
+ 216, 99, 106, 191, 87, 95, 170, 76, 83, 148, 65, 71, 126, 53, 58, 106, 41, 45, 85, 26, 30, 59, 0, 8, 11, 0, 0,
+ 216, 98, 91, 192, 88, 82, 170, 77, 71, 148, 65, 60, 127, 53, 48, 105, 41, 36, 83, 26, 21, 58, 1, 2, 11, 0, 0,
+ 217, 99, 75, 192, 87, 66, 170, 76, 57, 148, 65, 47, 126, 53, 36, 105, 41, 24, 83, 26, 8, 57, 2, 0, 9, 0, 0,
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+ 0, 84, 138, 0, 74, 124, 1, 64, 110, 0, 54, 95, 0, 43, 81, 0, 30, 67, 0, 15, 51, 0, 1, 29, 0, 0, 0,
+ 14, 84, 126, 12, 74, 112, 2, 65, 99, 0, 54, 85, 0, 44, 73, 0, 31, 59, 0, 16, 44, 0, 1, 23, 0, 0, 0,
+ 16, 84, 113, 13, 74, 100, 6, 65, 89, 0, 54, 77, 0, 44, 65, 0, 31, 51, 0, 17, 36, 0, 1, 16, 0, 0, 0,
+ 24, 84, 100, 18, 74, 88, 13, 65, 78, 2, 55, 68, 0, 44, 55, 0, 32, 43, 0, 18, 28, 0, 1, 6, 0, 0, 0,
+ 26, 84, 87, 24, 74, 76, 17, 65, 67, 7, 54, 57, 0, 44, 46, 0, 32, 35, 0, 19, 21, 0, 2, 3, 0, 0, 0,
+ 30, 84, 74, 28, 74, 64, 20, 65, 55, 12, 55, 46, 0, 44, 35, 0, 32, 24, 0, 18, 9, 0, 1, 0, 0, 0, 0,
+ 32, 84, 63, 28, 74, 54, 21, 65, 47, 13, 54, 38, 0, 44, 28, 0, 32, 16, 0, 18, 1, 0, 1, 0, 0, 0, 0,
+ 30, 67, 155, 20, 58, 139, 20, 49, 126, 12, 39, 110, 0, 27, 94, 0, 13, 77, 0, 0, 60, 0, 0, 37, 0, 0, 0,
+ 35, 67, 142, 30, 58, 126, 23, 50, 114, 16, 40, 99, 7, 29, 85, 0, 15, 69, 0, 0, 52, 0, 0, 30, 0, 0, 0,
+ 35, 68, 131, 30, 59, 116, 27, 50, 104, 18, 40, 90, 9, 29, 76, 0, 17, 62, 0, 2, 46, 0, 0, 24, 0, 0, 0,
+ 37, 69, 119, 33, 59, 106, 27, 51, 94, 21, 41, 80, 9, 30, 67, 0, 18, 54, 0, 3, 39, 0, 0, 18, 0, 0, 0,
+ 40, 69, 107, 36, 59, 94, 28, 51, 84, 18, 41, 72, 10, 31, 60, 0, 19, 47, 0, 4, 32, 0, 0, 10, 0, 0, 0,
+ 42, 69, 95, 36, 59, 84, 29, 51, 74, 19, 41, 63, 10, 31, 52, 0, 20, 39, 0, 4, 25, 0, 0, 4, 0, 0, 0,
+ 43, 69, 83, 38, 60, 73, 32, 51, 62, 23, 42, 53, 11, 31, 42, 0, 20, 31, 0, 5, 17, 0, 0, 1, 0, 0, 0,
+ 45, 69, 70, 39, 60, 60, 33, 51, 52, 24, 42, 43, 13, 32, 33, 0, 21, 21, 0, 5, 6, 0, 0, 0, 0, 0, 0,
+ 47, 69, 59, 41, 60, 51, 34, 51, 43, 24, 42, 35, 12, 33, 26, 1, 22, 14, 0, 5, 1, 0, 0, 0, 0, 0, 0,
+ 46, 48, 146, 42, 40, 131, 36, 32, 118, 27, 22, 103, 17, 6, 88, 5, 0, 73, 0, 0, 55, 0, 0, 33, 0, 0, 0,
+ 48, 48, 133, 44, 40, 119, 37, 32, 107, 28, 22, 93, 20, 8, 79, 7, 0, 65, 0, 0, 49, 0, 0, 27, 0, 0, 0,
+ 48, 50, 123, 44, 41, 109, 37, 33, 97, 30, 23, 83, 21, 11, 71, 8, 0, 58, 0, 0, 42, 0, 0, 21, 0, 0, 0,
+ 49, 51, 111, 45, 42, 99, 38, 34, 87, 29, 25, 75, 20, 13, 63, 8, 0, 51, 0, 0, 36, 0, 0, 14, 0, 0, 0,
+ 52, 52, 100, 44, 43, 89, 38, 35, 79, 29, 26, 68, 19, 15, 56, 10, 1, 43, 0, 0, 28, 0, 0, 6, 0, 0, 0,
+ 52, 52, 90, 47, 44, 79, 39, 36, 70, 30, 27, 59, 20, 16, 47, 9, 2, 36, 0, 0, 22, 0, 0, 2, 0, 0, 0,
+ 52, 53, 78, 46, 44, 68, 39, 37, 60, 32, 27, 49, 22, 17, 39, 10, 3, 28, 0, 0, 12, 0, 0, 0, 0, 0, 0,
+ 53, 53, 66, 47, 44, 57, 40, 36, 48, 32, 27, 39, 22, 18, 30, 9, 4, 18, 0, 0, 3, 0, 0, 0, 0, 0, 0,
+ 54, 53, 57, 48, 45, 49, 41, 37, 41, 33, 28, 32, 22, 19, 23, 11, 6, 10, 1, 0, 0, 0, 0, 0, 0, 0, 0,
+};
+void AdobeCMYK_to_sRGB1(FX_BYTE c, FX_BYTE m, FX_BYTE y, FX_BYTE k, FX_BYTE& R, FX_BYTE& G, FX_BYTE& B)
+{
+ int fix_c = c << 8;
+ int fix_m = m << 8;
+ int fix_y = y << 8;
+ int fix_k = k << 8;
+ int c_index = (fix_c + 4096) >> 13;
+ int m_index = (fix_m + 4096) >> 13;
+ int y_index = (fix_y + 4096) >> 13;
+ int k_index = (fix_k + 4096) >> 13;
+ int pos = (c_index * 9 * 9 * 9 + m_index * 9 * 9 + y_index * 9 + k_index) * 3;
+ int fix_r = g_CMYKSamples[pos] << 8;
+ int fix_g = g_CMYKSamples[pos + 1] << 8;
+ int fix_b = g_CMYKSamples[pos + 2] << 8;
+ int c1_index = fix_c >> 13;
+ if (c1_index == c_index) {
+ c1_index = c1_index == 8 ? c1_index - 1 : c1_index + 1;
+ }
+ int m1_index = fix_m >> 13;
+ if (m1_index == m_index) {
+ m1_index = m1_index == 8 ? m1_index - 1 : m1_index + 1;
+ }
+ int y1_index = fix_y >> 13;
+ if (y1_index == y_index) {
+ y1_index = y1_index == 8 ? y1_index - 1 : y1_index + 1;
+ }
+ int k1_index = fix_k >> 13;
+ if (k1_index == k_index) {
+ k1_index = k1_index == 8 ? k1_index - 1 : k1_index + 1;
+ }
+ int c1_pos = pos + (c1_index - c_index) * 9 * 9 * 9 * 3;
+ int m1_pos = pos + (m1_index - m_index) * 9 * 9 * 3;
+ int y1_pos = pos + (y1_index - y_index) * 9 * 3;
+ int k1_pos = pos + (k1_index - k_index) * 3;
+ int c_r_delta = g_CMYKSamples[pos] - g_CMYKSamples[c1_pos];
+ int c_g_delta = g_CMYKSamples[pos + 1] - g_CMYKSamples[c1_pos + 1];
+ int c_b_delta = g_CMYKSamples[pos + 2] - g_CMYKSamples[c1_pos + 2];
+ int m_r_delta = g_CMYKSamples[pos] - g_CMYKSamples[m1_pos];
+ int m_g_delta = g_CMYKSamples[pos + 1] - g_CMYKSamples[m1_pos + 1];
+ int m_b_delta = g_CMYKSamples[pos + 2] - g_CMYKSamples[m1_pos + 2];
+ int y_r_delta = g_CMYKSamples[pos] - g_CMYKSamples[y1_pos];
+ int y_g_delta = g_CMYKSamples[pos + 1] - g_CMYKSamples[y1_pos + 1];
+ int y_b_delta = g_CMYKSamples[pos + 2] - g_CMYKSamples[y1_pos + 2];
+ int k_r_delta = g_CMYKSamples[pos] - g_CMYKSamples[k1_pos];
+ int k_g_delta = g_CMYKSamples[pos + 1] - g_CMYKSamples[k1_pos + 1];
+ int k_b_delta = g_CMYKSamples[pos + 2] - g_CMYKSamples[k1_pos + 2];
+ int c_rate = (fix_c - (c_index << 13)) * (c_index - c1_index);
+ fix_r += c_r_delta * c_rate / 32;
+ fix_g += c_g_delta * c_rate / 32;
+ fix_b += c_b_delta * c_rate / 32;
+ int m_rate = (fix_m - (m_index << 13)) * (m_index - m1_index);
+ fix_r += m_r_delta * m_rate / 32;
+ fix_g += m_g_delta * m_rate / 32;
+ fix_b += m_b_delta * m_rate / 32;
+ int y_rate = (fix_y - (y_index << 13)) * (y_index - y1_index);
+ fix_r += y_r_delta * y_rate / 32;
+ fix_g += y_g_delta * y_rate / 32;
+ fix_b += y_b_delta * y_rate / 32;
+ int k_rate = (fix_k - (k_index << 13)) * (k_index - k1_index);
+ fix_r += k_r_delta * k_rate / 32;
+ fix_g += k_g_delta * k_rate / 32;
+ fix_b += k_b_delta * k_rate / 32;
+ if (fix_r < 0) {
+ fix_r = 0;
+ }
+ if (fix_g < 0) {
+ fix_g = 0;
+ }
+ if (fix_b < 0) {
+ fix_b = 0;
+ }
+ R = fix_r >> 8;
+ G = fix_g >> 8;
+ B = fix_b >> 8;
+}
+void AdobeCMYK_to_sRGB(FX_FLOAT c, FX_FLOAT m, FX_FLOAT y, FX_FLOAT k, FX_FLOAT& R, FX_FLOAT& G, FX_FLOAT& B)
+{
+ FX_BYTE c1 = FXSYS_round(c * 255);
+ FX_BYTE m1 = FXSYS_round(m * 255);
+ FX_BYTE y1 = FXSYS_round(y * 255);
+ FX_BYTE k1 = FXSYS_round(k * 255);
+ FX_BYTE r, g, b;
+ AdobeCMYK_to_sRGB1(c1, m1, y1, k1, r, g, b);
+ R = 1.0f * r / 255;
+ G = 1.0f * g / 255;
+ B = 1.0f * b / 255;
+}
diff --git a/core/src/fxcodec/codec/fx_codec_jbig.cpp b/core/src/fxcodec/codec/fx_codec_jbig.cpp new file mode 100644 index 0000000000..a644e99c5d --- /dev/null +++ b/core/src/fxcodec/codec/fx_codec_jbig.cpp @@ -0,0 +1,212 @@ +// 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 "../../../include/fxcodec/fx_codec.h"
+#include "codec_int.h"
+CCodec_Jbig2Context::CCodec_Jbig2Context()
+{
+ FXSYS_memset32(this, 0, sizeof(CCodec_Jbig2Context));
+}
+CCodec_Jbig2Module::~CCodec_Jbig2Module()
+{
+}
+void* CCodec_Jbig2Module::CreateJbig2Context()
+{
+ return FX_NEW CCodec_Jbig2Context();
+}
+void CCodec_Jbig2Module::DestroyJbig2Context(void* pJbig2Content)
+{
+ if(pJbig2Content) {
+ CJBig2_Context::DestroyContext(((CCodec_Jbig2Context*)pJbig2Content)->m_pContext);
+ delete (CCodec_Jbig2Context*)pJbig2Content;
+ }
+ pJbig2Content = NULL;
+}
+FX_BOOL CCodec_Jbig2Module::Decode(FX_DWORD width, FX_DWORD height, FX_LPCBYTE src_buf, FX_DWORD src_size,
+ FX_LPCBYTE global_data, FX_DWORD global_size, FX_LPBYTE dest_buf, FX_DWORD dest_pitch)
+{
+ FXSYS_memset32(dest_buf, 0, height * dest_pitch);
+ CJBig2_Context* pContext = CJBig2_Context::CreateContext(&m_Module,
+ (FX_LPBYTE)global_data, global_size, (FX_LPBYTE)src_buf, src_size, JBIG2_EMBED_STREAM);
+ if (pContext == NULL) {
+ return FALSE;
+ }
+ int ret = pContext->getFirstPage(dest_buf, width, height, dest_pitch, NULL);
+ CJBig2_Context::DestroyContext(pContext);
+ if (ret != JBIG2_SUCCESS) {
+ return FALSE;
+ }
+ int dword_size = height * dest_pitch / 4;
+ FX_DWORD* dword_buf = (FX_DWORD*)dest_buf;
+ for (int i = 0; i < dword_size; i ++) {
+ dword_buf[i] = ~dword_buf[i];
+ }
+ return TRUE;
+}
+FX_BOOL CCodec_Jbig2Module::Decode(IFX_FileRead* file_ptr,
+ FX_DWORD& width, FX_DWORD& height, FX_DWORD& pitch, FX_LPBYTE& dest_buf)
+{
+ CJBig2_Context* pContext = NULL;
+ CJBig2_Image* dest_image = NULL;
+ FX_DWORD src_size = (FX_DWORD)file_ptr->GetSize();
+ FX_LPBYTE src_buf = FX_Alloc(FX_BYTE, src_size);
+ if (src_buf == NULL) {
+ return FALSE;
+ }
+ int ret = 0;
+ if(!file_ptr->ReadBlock(src_buf, 0, src_size)) {
+ goto failed;
+ }
+ pContext = CJBig2_Context::CreateContext(&m_Module, NULL, 0, src_buf, src_size, JBIG2_FILE_STREAM);
+ if(pContext == NULL) {
+ goto failed;
+ }
+ ret = pContext->getFirstPage(&dest_image, NULL);
+ CJBig2_Context::DestroyContext(pContext);
+ if (ret != JBIG2_SUCCESS) {
+ goto failed;
+ }
+ width = (FX_DWORD)dest_image->m_nWidth;
+ height = (FX_DWORD)dest_image->m_nHeight;
+ pitch = (FX_DWORD)dest_image->m_nStride;
+ dest_buf = dest_image->m_pData;
+ dest_image->m_bNeedFree = FALSE;
+ delete dest_image;
+ FX_Free(src_buf);
+ return TRUE;
+failed:
+ if(src_buf) {
+ FX_Free(src_buf);
+ }
+ return FALSE;
+}
+FXCODEC_STATUS CCodec_Jbig2Module::StartDecode(void* pJbig2Context, FX_DWORD width, FX_DWORD height, FX_LPCBYTE src_buf, FX_DWORD src_size,
+ FX_LPCBYTE global_data, FX_DWORD global_size, FX_LPBYTE dest_buf, FX_DWORD dest_pitch, IFX_Pause* pPause)
+{
+ if(!pJbig2Context) {
+ return FXCODEC_STATUS_ERR_PARAMS;
+ }
+ CCodec_Jbig2Context* m_pJbig2Context = (CCodec_Jbig2Context*)pJbig2Context;
+ m_pJbig2Context->m_width = width;
+ m_pJbig2Context->m_height = height;
+ m_pJbig2Context->m_src_buf = (unsigned char *)src_buf;
+ m_pJbig2Context->m_src_size = src_size;
+ m_pJbig2Context->m_global_data = global_data;
+ m_pJbig2Context->m_global_size = global_size;
+ m_pJbig2Context->m_dest_buf = dest_buf;
+ m_pJbig2Context->m_dest_pitch = dest_pitch;
+ m_pJbig2Context->m_pPause = pPause;
+ m_pJbig2Context->m_bFileReader = FALSE;
+ FXSYS_memset32(dest_buf, 0, height * dest_pitch);
+ m_pJbig2Context->m_pContext = CJBig2_Context::CreateContext(&m_Module,
+ (FX_LPBYTE)global_data, global_size, (FX_LPBYTE)src_buf, src_size, JBIG2_EMBED_STREAM, pPause);
+ if(!m_pJbig2Context->m_pContext) {
+ return FXCODEC_STATUS_ERROR;
+ }
+ int ret = m_pJbig2Context->m_pContext->getFirstPage(dest_buf, width, height, dest_pitch, pPause);
+ if(m_pJbig2Context->m_pContext->GetProcessiveStatus() == FXCODEC_STATUS_DECODE_FINISH) {
+ CJBig2_Context::DestroyContext(m_pJbig2Context->m_pContext);
+ m_pJbig2Context->m_pContext = NULL;
+ if (ret != JBIG2_SUCCESS) {
+ return FXCODEC_STATUS_ERROR;
+ }
+ int dword_size = height * dest_pitch / 4;
+ FX_DWORD* dword_buf = (FX_DWORD*)dest_buf;
+ for (int i = 0; i < dword_size; i ++) {
+ dword_buf[i] = ~dword_buf[i];
+ }
+ return FXCODEC_STATUS_DECODE_FINISH;
+ }
+ return m_pJbig2Context->m_pContext->GetProcessiveStatus();
+}
+FXCODEC_STATUS CCodec_Jbig2Module::StartDecode(void* pJbig2Context, IFX_FileRead* file_ptr,
+ FX_DWORD& width, FX_DWORD& height, FX_DWORD& pitch, FX_LPBYTE& dest_buf, IFX_Pause* pPause)
+{
+ if(!pJbig2Context) {
+ return FXCODEC_STATUS_ERR_PARAMS;
+ }
+ CCodec_Jbig2Context* m_pJbig2Context = (CCodec_Jbig2Context*)pJbig2Context;
+ m_pJbig2Context->m_bFileReader = TRUE;
+ m_pJbig2Context->m_dest_image = NULL;
+ m_pJbig2Context->m_src_size = (FX_DWORD)file_ptr->GetSize();
+ m_pJbig2Context->m_src_buf = FX_Alloc(FX_BYTE, m_pJbig2Context->m_src_size);
+ if (m_pJbig2Context->m_src_buf == NULL) {
+ return FXCODEC_STATUS_ERR_MEMORY;
+ }
+ int ret = 0;
+ if(!file_ptr->ReadBlock((void*)m_pJbig2Context->m_src_buf, 0, m_pJbig2Context->m_src_size)) {
+ goto failed;
+ }
+ m_pJbig2Context->m_pContext = CJBig2_Context::CreateContext(&m_Module, NULL, 0, m_pJbig2Context->m_src_buf, m_pJbig2Context->m_src_size, JBIG2_FILE_STREAM, pPause);
+ if(m_pJbig2Context->m_pContext == NULL) {
+ goto failed;
+ }
+ ret = m_pJbig2Context->m_pContext->getFirstPage(&m_pJbig2Context->m_dest_image, pPause);
+ if(m_pJbig2Context->m_pContext->GetProcessiveStatus() == FXCODEC_STATUS_DECODE_TOBECONTINUE) {
+ width = (FX_DWORD)m_pJbig2Context->m_dest_image->m_nWidth;
+ height = (FX_DWORD)m_pJbig2Context->m_dest_image->m_nHeight;
+ pitch = (FX_DWORD)m_pJbig2Context->m_dest_image->m_nStride;
+ dest_buf = m_pJbig2Context->m_dest_image->m_pData;
+ m_pJbig2Context->m_dest_image->m_bNeedFree = FALSE;
+ return FXCODEC_STATUS_DECODE_TOBECONTINUE;
+ }
+ CJBig2_Context::DestroyContext(m_pJbig2Context->m_pContext);
+ m_pJbig2Context->m_pContext = NULL;
+ if (ret != JBIG2_SUCCESS) {
+ goto failed;
+ }
+ width = (FX_DWORD)m_pJbig2Context->m_dest_image->m_nWidth;
+ height = (FX_DWORD)m_pJbig2Context->m_dest_image->m_nHeight;
+ pitch = (FX_DWORD)m_pJbig2Context->m_dest_image->m_nStride;
+ dest_buf = m_pJbig2Context->m_dest_image->m_pData;
+ m_pJbig2Context->m_dest_image->m_bNeedFree = FALSE;
+ delete m_pJbig2Context->m_dest_image;
+ FX_Free(m_pJbig2Context->m_src_buf);
+ return FXCODEC_STATUS_DECODE_FINISH;
+failed:
+ if(m_pJbig2Context->m_src_buf) {
+ FX_Free(m_pJbig2Context->m_src_buf);
+ }
+ m_pJbig2Context->m_src_buf = NULL;
+ return FXCODEC_STATUS_ERROR;
+}
+FXCODEC_STATUS CCodec_Jbig2Module::ContinueDecode(void* pJbig2Context, IFX_Pause* pPause)
+{
+ CCodec_Jbig2Context* m_pJbig2Context = (CCodec_Jbig2Context*)pJbig2Context;
+ int ret = m_pJbig2Context->m_pContext->Continue(pPause);
+ if(m_pJbig2Context->m_pContext->GetProcessiveStatus() == FXCODEC_STATUS_DECODE_FINISH) {
+ if(m_pJbig2Context->m_bFileReader) {
+ CJBig2_Context::DestroyContext(m_pJbig2Context->m_pContext);
+ m_pJbig2Context->m_pContext = NULL;
+ if (ret != JBIG2_SUCCESS) {
+ if(m_pJbig2Context->m_src_buf) {
+ FX_Free(m_pJbig2Context->m_src_buf);
+ }
+ m_pJbig2Context->m_src_buf = NULL;
+ return FXCODEC_STATUS_ERROR;
+ }
+ delete m_pJbig2Context->m_dest_image;
+ FX_Free(m_pJbig2Context->m_src_buf);
+ return FXCODEC_STATUS_DECODE_FINISH;
+ } else {
+ CJBig2_Context::DestroyContext(m_pJbig2Context->m_pContext);
+ m_pJbig2Context->m_pContext = NULL;
+ if (ret != JBIG2_SUCCESS) {
+ return FXCODEC_STATUS_ERROR;
+ }
+ int dword_size = m_pJbig2Context->m_height * m_pJbig2Context->m_dest_pitch / 4;
+ FX_DWORD* dword_buf = (FX_DWORD*)m_pJbig2Context->m_dest_buf;
+ for (int i = 0; i < dword_size; i ++) {
+ dword_buf[i] = ~dword_buf[i];
+ }
+ return FXCODEC_STATUS_DECODE_FINISH;
+ }
+ }
+ return m_pJbig2Context->m_pContext->GetProcessiveStatus();
+}
+
+
+
diff --git a/core/src/fxcodec/codec/fx_codec_jbig_enc.cpp b/core/src/fxcodec/codec/fx_codec_jbig_enc.cpp new file mode 100644 index 0000000000..4a982e66a8 --- /dev/null +++ b/core/src/fxcodec/codec/fx_codec_jbig_enc.cpp @@ -0,0 +1,11 @@ +// 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 "../../../include/fxcodec/fx_codec.h" +ICodec_Jbig2Encoder* CCodec_ModuleMgr::CreateJbig2Encoder() +{ + return NULL; +} diff --git a/core/src/fxcodec/codec/fx_codec_jpeg.cpp b/core/src/fxcodec/codec/fx_codec_jpeg.cpp new file mode 100644 index 0000000000..fc91a6c162 --- /dev/null +++ b/core/src/fxcodec/codec/fx_codec_jpeg.cpp @@ -0,0 +1,735 @@ +// 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 "../../../include/fxcodec/fx_codec.h"
+#include "../../../include/fxge/fx_dib.h"
+#include "codec_int.h"
+extern "C" {
+ static void _JpegScanSOI(const FX_BYTE*& src_buf, FX_DWORD& src_size)
+ {
+ if (src_size == 0) {
+ return;
+ }
+ FX_DWORD offset = 0;
+ while (offset < src_size - 1) {
+ if (src_buf[offset] == 0xff && src_buf[offset + 1] == 0xd8) {
+ src_buf += offset;
+ src_size -= offset;
+ return;
+ }
+ offset ++;
+ }
+ }
+};
+extern "C" {
+#undef FAR
+#include "../../fx_jpeglib.h"
+}
+extern "C" {
+ static void _src_do_nothing(struct jpeg_decompress_struct* cinfo) {}
+};
+extern "C" {
+ static void _error_fatal(j_common_ptr cinfo)
+ {
+ longjmp(*(jmp_buf*)cinfo->client_data, -1);
+ }
+};
+extern "C" {
+ static void _src_skip_data(struct jpeg_decompress_struct* cinfo, long num)
+ {
+ if (num > (long)cinfo->src->bytes_in_buffer) {
+ _error_fatal((j_common_ptr)cinfo);
+ }
+ cinfo->src->next_input_byte += num;
+ cinfo->src->bytes_in_buffer -= num;
+ }
+};
+extern "C" {
+ static boolean _src_fill_buffer(j_decompress_ptr cinfo)
+ {
+ return 0;
+ }
+};
+extern "C" {
+ static boolean _src_resync(j_decompress_ptr cinfo, int desired)
+ {
+ return 0;
+ }
+};
+extern "C" {
+ static void _error_do_nothing(j_common_ptr cinfo) {}
+};
+extern "C" {
+ static void _error_do_nothing1(j_common_ptr cinfo, int) {}
+};
+extern "C" {
+ static void _error_do_nothing2(j_common_ptr cinfo, char*) {}
+};
+#define JPEG_MARKER_EXIF (JPEG_APP0 + 1)
+#define JPEG_MARKER_ICC (JPEG_APP0 + 2)
+#define JPEG_MARKER_AUTHORTIME (JPEG_APP0 + 3)
+#define JPEG_MARKER_MAXSIZE 0xFFFF
+#define JPEG_OVERHEAD_LEN 14
+static FX_BOOL _JpegIsIccMarker(jpeg_saved_marker_ptr marker)
+{
+ if (marker->marker == JPEG_MARKER_ICC &&
+ marker->data_length >= JPEG_OVERHEAD_LEN &&
+ (FXSYS_memcmp32(marker->data, "\x49\x43\x43\x5f\x50\x52\x4f\x46\x49\x4c\x45\x00", 12) == 0)) {
+ return TRUE;
+ }
+ return FALSE;
+}
+static FX_BOOL _JpegLoadIccProfile(j_decompress_ptr cinfo, FX_LPBYTE* icc_buf_ptr, FX_DWORD* icc_length)
+{
+ if(icc_buf_ptr == NULL || icc_length == NULL) {
+ return FALSE;
+ }
+ *icc_buf_ptr = NULL;
+ *icc_length = 0;
+ FX_LPBYTE icc_data_ptr = NULL;
+ FX_DWORD icc_data_len = 0;
+ FX_BYTE count_icc_marker = 0;
+ FX_BYTE num_icc_marker = 0;
+ jpeg_saved_marker_ptr marker_list[256] = {NULL};
+ for (jpeg_saved_marker_ptr cur_marker = cinfo->marker_list;
+ cur_marker != NULL;
+ cur_marker = cur_marker->next) {
+ if(_JpegIsIccMarker(cur_marker)) {
+ if(count_icc_marker == 0) {
+ num_icc_marker = cur_marker->data[13];
+ } else if(num_icc_marker != cur_marker->data[13]) {
+ return FALSE;
+ }
+ int sn = cur_marker->data[12] - 1;
+ if(sn < 0 || sn >= num_icc_marker) {
+ return FALSE;
+ }
+ if(marker_list[sn] == NULL) {
+ marker_list[sn] = cur_marker;
+ } else {
+ return FALSE;
+ }
+ count_icc_marker ++;
+ icc_data_len += (cur_marker->data_length - JPEG_OVERHEAD_LEN);
+ }
+ }
+ if(count_icc_marker != num_icc_marker) {
+ return FALSE;
+ }
+ if(num_icc_marker == 0) {
+ return TRUE;
+ }
+ icc_data_ptr = FX_Alloc(FX_BYTE, icc_data_len);
+ if(icc_buf_ptr == NULL) {
+ return FALSE;
+ }
+ *icc_buf_ptr = icc_data_ptr;
+ *icc_length = icc_data_len;
+ for (int idx = 0; idx < num_icc_marker; idx++) {
+ icc_data_len = marker_list[idx]->data_length - JPEG_OVERHEAD_LEN;
+ FXSYS_memcpy32(icc_data_ptr, marker_list[idx]->data + JPEG_OVERHEAD_LEN, icc_data_len);
+ icc_data_ptr += icc_data_len;
+ }
+ return TRUE;
+}
+static FX_BOOL _JpegEmbedIccProfile(j_compress_ptr cinfo, FX_LPCBYTE icc_buf_ptr, FX_DWORD icc_length)
+{
+ if(icc_buf_ptr == NULL || icc_length == 0) {
+ return FALSE;
+ }
+ FX_DWORD icc_segment_size = (JPEG_MARKER_MAXSIZE - 2 - JPEG_OVERHEAD_LEN);
+ FX_DWORD icc_segment_num = (icc_length / icc_segment_size) + 1;
+ if (icc_segment_num > 255) {
+ return FALSE;
+ }
+ FX_DWORD icc_data_length = JPEG_OVERHEAD_LEN + (icc_segment_num > 1 ? icc_segment_size : icc_length);
+ FX_LPBYTE icc_data = FX_Alloc(FX_BYTE, icc_data_length);
+ if (icc_data == NULL) {
+ return FALSE;
+ }
+ FXSYS_memcpy32(icc_data, "\x49\x43\x43\x5f\x50\x52\x4f\x46\x49\x4c\x45\x00", 12);
+ icc_data[13] = (FX_BYTE)icc_segment_num;
+ for (FX_BYTE i = 0; i < (icc_segment_num - 1); i++) {
+ icc_data[12] = i + 1;
+ FXSYS_memcpy32(icc_data + JPEG_OVERHEAD_LEN, icc_buf_ptr + i * icc_segment_size, icc_segment_size);
+ jpeg_write_marker(cinfo, JPEG_MARKER_ICC, icc_data, icc_data_length);
+ }
+ icc_data[12] = (FX_BYTE)icc_segment_num;
+ FX_DWORD icc_size = (icc_segment_num - 1) * icc_segment_size;
+ FXSYS_memcpy32(icc_data + JPEG_OVERHEAD_LEN, icc_buf_ptr + icc_size, icc_length - icc_size);
+ jpeg_write_marker(cinfo, JPEG_MARKER_ICC, icc_data, JPEG_OVERHEAD_LEN + icc_length - icc_size);
+ FX_Free(icc_data);
+ return TRUE;
+}
+extern "C" {
+ static void _dest_do_nothing(j_compress_ptr cinfo) {}
+};
+extern "C" {
+ static boolean _dest_empty(j_compress_ptr cinfo)
+ {
+ return FALSE;
+ }
+};
+#define JPEG_BLOCK_SIZE 1048576
+static void _JpegEncode(const CFX_DIBSource* pSource, FX_LPBYTE& dest_buf, FX_STRSIZE& dest_size, int quality, FX_LPCBYTE icc_buf, FX_DWORD icc_length)
+{
+ struct jpeg_compress_struct cinfo;
+ struct jpeg_error_mgr jerr;
+ jerr.error_exit = _error_do_nothing;
+ jerr.emit_message = _error_do_nothing1;
+ jerr.output_message = _error_do_nothing;
+ jerr.format_message = _error_do_nothing2;
+ jerr.reset_error_mgr = _error_do_nothing;
+ cinfo.err = &jerr;
+ jpeg_create_compress(&cinfo);
+ int Bpp = pSource->GetBPP() / 8;
+ int nComponents = Bpp >= 3 ? (pSource->IsCmykImage() ? 4 : 3) : 1;
+ int pitch = pSource->GetPitch();
+ int width = pSource->GetWidth();
+ int height = pSource->GetHeight();
+ FX_DWORD dest_buf_length = width * height * nComponents + 1024 + (icc_length ? (icc_length + 255 * 18) : 0);
+ dest_buf = FX_Alloc(FX_BYTE, dest_buf_length);
+ while (dest_buf == NULL) {
+ dest_buf_length >>= 1;
+ dest_buf = FX_Alloc(FX_BYTE, dest_buf_length);
+ }
+ FXSYS_memset32(dest_buf, 0, dest_buf_length);
+ struct jpeg_destination_mgr dest;
+ dest.init_destination = _dest_do_nothing;
+ dest.term_destination = _dest_do_nothing;
+ dest.empty_output_buffer = _dest_empty;
+ dest.next_output_byte = dest_buf;
+ dest.free_in_buffer = dest_buf_length;
+ cinfo.dest = &dest;
+ cinfo.image_width = width;
+ cinfo.image_height = height;
+ cinfo.input_components = nComponents;
+ if (nComponents == 1) {
+ cinfo.in_color_space = JCS_GRAYSCALE;
+ } else if (nComponents == 3) {
+ cinfo.in_color_space = JCS_RGB;
+ } else {
+ cinfo.in_color_space = JCS_CMYK;
+ }
+ FX_LPBYTE line_buf = NULL;
+ if (nComponents > 1) {
+ line_buf = FX_Alloc(FX_BYTE, width * nComponents);
+ if (line_buf == NULL) {
+ return;
+ }
+ }
+ jpeg_set_defaults(&cinfo);
+ if(quality != 75) {
+ jpeg_set_quality(&cinfo, quality, TRUE);
+ }
+ jpeg_start_compress(&cinfo, TRUE);
+ _JpegEmbedIccProfile(&cinfo, icc_buf, icc_length);
+ JSAMPROW row_pointer[1];
+ JDIMENSION row;
+ while (cinfo.next_scanline < cinfo.image_height) {
+ FX_LPCBYTE src_scan = pSource->GetScanline(cinfo.next_scanline);
+ if (nComponents > 1) {
+ FX_LPBYTE dest_scan = line_buf;
+ if (nComponents == 3) {
+ for (int i = 0; i < width; i ++) {
+ dest_scan[0] = src_scan[2];
+ dest_scan[1] = src_scan[1];
+ dest_scan[2] = src_scan[0];
+ dest_scan += 3;
+ src_scan += Bpp;
+ }
+ } else {
+ for (int i = 0; i < pitch; i ++) {
+ *dest_scan++ = ~*src_scan++;
+ }
+ }
+ row_pointer[0] = line_buf;
+ } else {
+ row_pointer[0] = (FX_LPBYTE)src_scan;
+ }
+ row = cinfo.next_scanline;
+ jpeg_write_scanlines(&cinfo, row_pointer, 1);
+ if (cinfo.next_scanline == row) {
+ dest_buf = FX_Realloc(FX_BYTE, dest_buf, dest_buf_length + JPEG_BLOCK_SIZE);
+ if (dest_buf == NULL) {
+ FX_Free(line_buf);
+ return;
+ }
+ dest.next_output_byte = dest_buf + dest_buf_length - dest.free_in_buffer;
+ dest_buf_length += JPEG_BLOCK_SIZE;
+ dest.free_in_buffer += JPEG_BLOCK_SIZE;
+ }
+ }
+ jpeg_finish_compress(&cinfo);
+ jpeg_destroy_compress(&cinfo);
+ if (line_buf) {
+ FX_Free(line_buf);
+ }
+ dest_size = dest_buf_length - (FX_STRSIZE)dest.free_in_buffer;
+}
+static FX_BOOL _JpegLoadInfo(FX_LPCBYTE src_buf, FX_DWORD src_size, int& width, int& height,
+ int& num_components, int& bits_per_components, FX_BOOL& color_transform,
+ FX_LPBYTE* icc_buf_ptr, FX_DWORD* icc_length)
+{
+ _JpegScanSOI(src_buf, src_size);
+ struct jpeg_decompress_struct cinfo;
+ struct jpeg_error_mgr jerr;
+ jerr.error_exit = _error_fatal;
+ jerr.emit_message = _error_do_nothing1;
+ jerr.output_message = _error_do_nothing;
+ jerr.format_message = _error_do_nothing2;
+ jerr.reset_error_mgr = _error_do_nothing;
+ cinfo.err = &jerr;
+ jmp_buf mark;
+ cinfo.client_data = &mark;
+ if (setjmp(mark) == -1) {
+ return FALSE;
+ }
+ jpeg_create_decompress(&cinfo);
+ struct jpeg_source_mgr src;
+ src.init_source = _src_do_nothing;
+ src.term_source = _src_do_nothing;
+ src.skip_input_data = _src_skip_data;
+ src.fill_input_buffer = _src_fill_buffer;
+ src.resync_to_restart = _src_resync;
+ src.bytes_in_buffer = src_size;
+ src.next_input_byte = src_buf;
+ cinfo.src = &src;
+ if (setjmp(mark) == -1) {
+ jpeg_destroy_decompress(&cinfo);
+ return FALSE;
+ }
+ if(icc_buf_ptr && icc_length) {
+ jpeg_save_markers(&cinfo, JPEG_MARKER_ICC, JPEG_MARKER_MAXSIZE);
+ }
+ int ret = jpeg_read_header(&cinfo, TRUE);
+ if (ret != JPEG_HEADER_OK) {
+ jpeg_destroy_decompress(&cinfo);
+ return FALSE;
+ }
+ width = cinfo.image_width;
+ height = cinfo.image_height;
+ num_components = cinfo.num_components;
+ color_transform = cinfo.jpeg_color_space == JCS_YCbCr || cinfo.jpeg_color_space == JCS_YCCK;
+ bits_per_components = cinfo.data_precision;
+ if(icc_buf_ptr != NULL) {
+ *icc_buf_ptr = NULL;
+ }
+ if(icc_length != NULL) {
+ *icc_length = 0;
+ }
+ jpeg_destroy_decompress(&cinfo);
+ return TRUE;
+}
+class CCodec_JpegDecoder : public CCodec_ScanlineDecoder
+{
+public:
+ CCodec_JpegDecoder();
+ ~CCodec_JpegDecoder();
+ FX_BOOL Create(FX_LPCBYTE src_buf, FX_DWORD src_size, int width, int height, int nComps,
+ FX_BOOL ColorTransform, IFX_JpegProvider* pJP);
+ virtual void Destroy()
+ {
+ delete this;
+ }
+ virtual void v_DownScale(int dest_width, int dest_height);
+ virtual FX_BOOL v_Rewind();
+ virtual FX_LPBYTE v_GetNextLine();
+ virtual FX_DWORD GetSrcOffset();
+ jmp_buf m_JmpBuf;
+ struct jpeg_decompress_struct cinfo;
+ struct jpeg_error_mgr jerr;
+ struct jpeg_source_mgr src;
+ FX_LPCBYTE m_SrcBuf;
+ FX_DWORD m_SrcSize;
+ FX_LPBYTE m_pScanlineBuf;
+ FX_BOOL InitDecode();
+ FX_BOOL m_bInited, m_bStarted, m_bJpegTransform;
+protected:
+ IFX_JpegProvider* m_pExtProvider;
+ void* m_pExtContext;
+ FX_DWORD m_nDefaultScaleDenom;
+};
+CCodec_JpegDecoder::CCodec_JpegDecoder()
+{
+ m_pScanlineBuf = NULL;
+ m_DownScale = 1;
+ m_bStarted = FALSE;
+ m_bInited = FALSE;
+ m_pExtProvider = NULL;
+ m_pExtContext = NULL;
+ FXSYS_memset32(&cinfo, 0, sizeof(cinfo));
+ FXSYS_memset32(&jerr, 0, sizeof(jerr));
+ FXSYS_memset32(&src, 0, sizeof(src));
+ m_nDefaultScaleDenom = 1;
+}
+CCodec_JpegDecoder::~CCodec_JpegDecoder()
+{
+ if (m_pExtProvider) {
+ m_pExtProvider->DestroyDecoder(m_pExtContext);
+ return;
+ }
+ if (m_pScanlineBuf) {
+ FX_Free(m_pScanlineBuf);
+ }
+ if (m_bInited) {
+ jpeg_destroy_decompress(&cinfo);
+ }
+}
+FX_BOOL CCodec_JpegDecoder::InitDecode()
+{
+ cinfo.err = &jerr;
+ cinfo.client_data = &m_JmpBuf;
+ if (setjmp(m_JmpBuf) == -1) {
+ return FALSE;
+ }
+ jpeg_create_decompress(&cinfo);
+ m_bInited = TRUE;
+ cinfo.src = &src;
+ src.bytes_in_buffer = m_SrcSize;
+ src.next_input_byte = m_SrcBuf;
+ if (setjmp(m_JmpBuf) == -1) {
+ jpeg_destroy_decompress(&cinfo);
+ m_bInited = FALSE;
+ return FALSE;
+ }
+ cinfo.image_width = m_OrigWidth;
+ cinfo.image_height = m_OrigHeight;
+ int ret = jpeg_read_header(&cinfo, TRUE);
+ if (ret != JPEG_HEADER_OK) {
+ return FALSE;
+ }
+ if (cinfo.saw_Adobe_marker) {
+ m_bJpegTransform = TRUE;
+ }
+ if (cinfo.num_components == 3 && !m_bJpegTransform) {
+ cinfo.out_color_space = cinfo.jpeg_color_space;
+ }
+ m_OrigWidth = cinfo.image_width;
+ m_OrigHeight = cinfo.image_height;
+ m_OutputWidth = m_OrigWidth;
+ m_OutputHeight = m_OutputHeight;
+ m_nDefaultScaleDenom = cinfo.scale_denom;
+ return TRUE;
+}
+FX_BOOL CCodec_JpegDecoder::Create(FX_LPCBYTE src_buf, FX_DWORD src_size, int width, int height,
+ int nComps, FX_BOOL ColorTransform, IFX_JpegProvider* pJP)
+{
+ if (pJP) {
+ m_pExtProvider = pJP;
+ m_pExtContext = m_pExtProvider->CreateDecoder(src_buf, src_size, width, height, nComps, ColorTransform);
+ return m_pExtContext != NULL;
+ }
+ _JpegScanSOI(src_buf, src_size);
+ m_SrcBuf = src_buf;
+ m_SrcSize = src_size;
+ jerr.error_exit = _error_fatal;
+ jerr.emit_message = _error_do_nothing1;
+ jerr.output_message = _error_do_nothing;
+ jerr.format_message = _error_do_nothing2;
+ jerr.reset_error_mgr = _error_do_nothing;
+ src.init_source = _src_do_nothing;
+ src.term_source = _src_do_nothing;
+ src.skip_input_data = _src_skip_data;
+ src.fill_input_buffer = _src_fill_buffer;
+ src.resync_to_restart = _src_resync;
+ m_bJpegTransform = ColorTransform;
+ if(src_size > 1 && FXSYS_memcmp32(src_buf + src_size - 2, "\xFF\xD9", 2) != 0) {
+ ((FX_LPBYTE)src_buf)[src_size - 2] = 0xFF;
+ ((FX_LPBYTE)src_buf)[src_size - 1] = 0xD9;
+ }
+ m_OutputWidth = m_OrigWidth = width;
+ m_OutputHeight = m_OrigHeight = height;
+ if (!InitDecode()) {
+ return FALSE;
+ }
+ if (cinfo.num_components < nComps) {
+ return FALSE;
+ }
+ if ((int)cinfo.image_width < width) {
+ return FALSE;
+ }
+ m_Pitch = (cinfo.image_width * cinfo.num_components + 3) / 4 * 4;
+ m_pScanlineBuf = FX_Alloc(FX_BYTE, m_Pitch);
+ if (m_pScanlineBuf == NULL) {
+ return FALSE;
+ }
+ m_nComps = cinfo.num_components;
+ m_bpc = 8;
+ m_bColorTransformed = FALSE;
+ m_bStarted = FALSE;
+ return TRUE;
+}
+extern "C" {
+ FX_INT32 FX_GetDownsampleRatio(FX_INT32 originWidth, FX_INT32 originHeight, FX_INT32 downsampleWidth, FX_INT32 downsampleHeight)
+ {
+ int iratio_w = originWidth / downsampleWidth;
+ int iratio_h = originHeight / downsampleHeight;
+ int ratio = (iratio_w > iratio_h) ? iratio_h : iratio_w;
+ if (ratio >= 8) {
+ return 8;
+ } else if (ratio >= 4) {
+ return 4;
+ } else if (ratio >= 2) {
+ return 2;
+ }
+ return 1;
+ }
+}
+void CCodec_JpegDecoder::v_DownScale(int dest_width, int dest_height)
+{
+ if (m_pExtProvider) {
+ m_pExtProvider->DownScale(m_pExtContext, dest_width, dest_height);
+ return;
+ }
+ int old_scale = m_DownScale;
+ m_DownScale = FX_GetDownsampleRatio(m_OrigWidth, m_OrigHeight, dest_width, dest_height);
+ m_OutputWidth = (m_OrigWidth + m_DownScale - 1) / m_DownScale;
+ m_OutputHeight = (m_OrigHeight + m_DownScale - 1) / m_DownScale;
+ m_Pitch = (m_OutputWidth * m_nComps + 3) / 4 * 4;
+ if (old_scale != m_DownScale) {
+ m_NextLine = -1;
+ }
+}
+FX_BOOL CCodec_JpegDecoder::v_Rewind()
+{
+ if (m_pExtProvider) {
+ return m_pExtProvider->Rewind(m_pExtContext);
+ }
+ if (m_bStarted) {
+ jpeg_destroy_decompress(&cinfo);
+ if (!InitDecode()) {
+ return FALSE;
+ }
+ }
+ if (setjmp(m_JmpBuf) == -1) {
+ return FALSE;
+ }
+ cinfo.scale_denom = m_nDefaultScaleDenom * m_DownScale;
+ m_OutputWidth = (m_OrigWidth + m_DownScale - 1) / m_DownScale;
+ m_OutputHeight = (m_OrigHeight + m_DownScale - 1) / m_DownScale;
+ if (!jpeg_start_decompress(&cinfo)) {
+ jpeg_destroy_decompress(&cinfo);
+ return FALSE;
+ }
+ if ((int)cinfo.output_width > m_OrigWidth) {
+ FXSYS_assert(FALSE);
+ return FALSE;
+ }
+ m_bStarted = TRUE;
+ return TRUE;
+}
+FX_LPBYTE CCodec_JpegDecoder::v_GetNextLine()
+{
+ if (m_pExtProvider) {
+ return m_pExtProvider->GetNextLine(m_pExtContext);
+ }
+ int nlines = jpeg_read_scanlines(&cinfo, &m_pScanlineBuf, 1);
+ if (nlines < 1) {
+ return NULL;
+ }
+ return m_pScanlineBuf;
+}
+FX_DWORD CCodec_JpegDecoder::GetSrcOffset()
+{
+ if (m_pExtProvider) {
+ return m_pExtProvider->GetSrcOffset(m_pExtContext);
+ }
+ return (FX_DWORD)(m_SrcSize - src.bytes_in_buffer);
+}
+ICodec_ScanlineDecoder* CCodec_JpegModule::CreateDecoder(FX_LPCBYTE src_buf, FX_DWORD src_size,
+ int width, int height, int nComps, FX_BOOL ColorTransform)
+{
+ if (src_buf == NULL || src_size == 0) {
+ return NULL;
+ }
+ CCodec_JpegDecoder* pDecoder = FX_NEW CCodec_JpegDecoder;
+ if (pDecoder == NULL) {
+ return NULL;
+ }
+ if (!pDecoder->Create(src_buf, src_size, width, height, nComps, ColorTransform, m_pExtProvider)) {
+ delete pDecoder;
+ return NULL;
+ }
+ return pDecoder;
+}
+FX_BOOL CCodec_JpegModule::LoadInfo(FX_LPCBYTE src_buf, FX_DWORD src_size, int& width, int& height,
+ int& num_components, int& bits_per_components, FX_BOOL& color_transform,
+ FX_LPBYTE* icc_buf_ptr, FX_DWORD* icc_length)
+{
+ if (m_pExtProvider) {
+ return m_pExtProvider->LoadInfo(src_buf, src_size, width, height,
+ num_components, bits_per_components, color_transform,
+ icc_buf_ptr, icc_length);
+ }
+ return _JpegLoadInfo(src_buf, src_size, width, height, num_components, bits_per_components, color_transform, icc_buf_ptr, icc_length);
+}
+FX_BOOL CCodec_JpegModule::Encode(const CFX_DIBSource* pSource, FX_LPBYTE& dest_buf, FX_STRSIZE& dest_size, int quality, FX_LPCBYTE icc_buf, FX_DWORD icc_length)
+{
+ if (m_pExtProvider) {
+ return m_pExtProvider->Encode(pSource, dest_buf, dest_size, quality, icc_buf, icc_length);
+ }
+ if(pSource->GetBPP() < 8 || pSource->GetPalette() != NULL) {
+ ASSERT(pSource->GetBPP() >= 8 && pSource->GetPalette() == NULL);
+ return FALSE;
+ }
+ _JpegEncode(pSource, dest_buf, dest_size, quality, icc_buf, icc_length);
+ return TRUE;
+}
+struct FXJPEG_Context {
+ jmp_buf m_JumpMark;
+ jpeg_decompress_struct m_Info;
+ jpeg_error_mgr m_ErrMgr;
+ jpeg_source_mgr m_SrcMgr;
+ unsigned int m_SkipSize;
+ void* (*m_AllocFunc)(unsigned int);
+ void (*m_FreeFunc)(void*);
+};
+extern "C" {
+ static void _error_fatal1(j_common_ptr cinfo)
+ {
+ longjmp(((FXJPEG_Context*)cinfo->client_data)->m_JumpMark, -1);
+ }
+};
+extern "C" {
+ static void _src_skip_data1(struct jpeg_decompress_struct* cinfo, long num)
+ {
+ if (cinfo->src->bytes_in_buffer < (size_t)num) {
+ ((FXJPEG_Context*)cinfo->client_data)->m_SkipSize = (unsigned int)(num - cinfo->src->bytes_in_buffer);
+ cinfo->src->bytes_in_buffer = 0;
+ } else {
+ cinfo->src->next_input_byte += num;
+ cinfo->src->bytes_in_buffer -= num;
+ }
+ }
+};
+static void* jpeg_alloc_func(unsigned int size)
+{
+ return FX_Alloc(char, size);
+}
+static void jpeg_free_func(void* p)
+{
+ FX_Free(p);
+}
+void* CCodec_JpegModule::Start()
+{
+ if (m_pExtProvider) {
+ return m_pExtProvider->Start();
+ }
+ FXJPEG_Context* p = (FXJPEG_Context*)FX_Alloc(FX_BYTE, sizeof(FXJPEG_Context));
+ if (p == NULL) {
+ return NULL;
+ }
+ p->m_AllocFunc = jpeg_alloc_func;
+ p->m_FreeFunc = jpeg_free_func;
+ p->m_ErrMgr.error_exit = _error_fatal1;
+ p->m_ErrMgr.emit_message = _error_do_nothing1;
+ p->m_ErrMgr.output_message = _error_do_nothing;
+ p->m_ErrMgr.format_message = _error_do_nothing2;
+ p->m_ErrMgr.reset_error_mgr = _error_do_nothing;
+ p->m_SrcMgr.init_source = _src_do_nothing;
+ p->m_SrcMgr.term_source = _src_do_nothing;
+ p->m_SrcMgr.skip_input_data = _src_skip_data1;
+ p->m_SrcMgr.fill_input_buffer = _src_fill_buffer;
+ p->m_SrcMgr.resync_to_restart = _src_resync;
+ p->m_Info.client_data = p;
+ p->m_Info.err = &p->m_ErrMgr;
+ if (setjmp(p->m_JumpMark) == -1) {
+ return 0;
+ }
+ jpeg_create_decompress(&p->m_Info);
+ p->m_Info.src = &p->m_SrcMgr;
+ p->m_SkipSize = 0;
+ return p;
+}
+void CCodec_JpegModule::Finish(void* pContext)
+{
+ if (m_pExtProvider) {
+ m_pExtProvider->Finish(pContext);
+ return;
+ }
+ FXJPEG_Context* p = (FXJPEG_Context*)pContext;
+ jpeg_destroy_decompress(&p->m_Info);
+ p->m_FreeFunc(p);
+}
+void CCodec_JpegModule::Input(void* pContext, const unsigned char* src_buf, FX_DWORD src_size)
+{
+ if (m_pExtProvider) {
+ m_pExtProvider->Input(pContext, src_buf, src_size);
+ return;
+ }
+ FXJPEG_Context* p = (FXJPEG_Context*)pContext;
+ if (p->m_SkipSize) {
+ if (p->m_SkipSize > src_size) {
+ p->m_SrcMgr.bytes_in_buffer = 0;
+ p->m_SkipSize -= src_size;
+ return;
+ }
+ src_size -= p->m_SkipSize;
+ src_buf += p->m_SkipSize;
+ p->m_SkipSize = 0;
+ }
+ p->m_SrcMgr.next_input_byte = src_buf;
+ p->m_SrcMgr.bytes_in_buffer = src_size;
+}
+int CCodec_JpegModule::ReadHeader(void* pContext, int* width, int* height, int* nComps)
+{
+ if (m_pExtProvider) {
+ return m_pExtProvider->ReadHeader(pContext, width, height, nComps);
+ }
+ FXJPEG_Context* p = (FXJPEG_Context*)pContext;
+ if (setjmp(p->m_JumpMark) == -1) {
+ return 1;
+ }
+ int ret = jpeg_read_header(&p->m_Info, true);
+ if (ret == JPEG_SUSPENDED) {
+ return 2;
+ }
+ if (ret != JPEG_HEADER_OK) {
+ return 1;
+ }
+ *width = p->m_Info.image_width;
+ *height = p->m_Info.image_height;
+ *nComps = p->m_Info.num_components;
+ return 0;
+}
+FX_BOOL CCodec_JpegModule::StartScanline(void* pContext, int down_scale)
+{
+ if (m_pExtProvider) {
+ return m_pExtProvider->StartScanline(pContext, down_scale);
+ }
+ FXJPEG_Context* p = (FXJPEG_Context*)pContext;
+ if (setjmp(p->m_JumpMark) == -1) {
+ return FALSE;
+ }
+ p->m_Info.scale_denom = down_scale;
+ return jpeg_start_decompress(&p->m_Info);
+}
+FX_BOOL CCodec_JpegModule::ReadScanline(void* pContext, unsigned char* dest_buf)
+{
+ if (m_pExtProvider) {
+ return m_pExtProvider->ReadScanline(pContext, dest_buf);
+ }
+ FXJPEG_Context* p = (FXJPEG_Context*)pContext;
+ if (setjmp(p->m_JumpMark) == -1) {
+ return FALSE;
+ }
+ int nlines = jpeg_read_scanlines(&p->m_Info, &dest_buf, 1);
+ return nlines == 1;
+}
+FX_DWORD CCodec_JpegModule::GetAvailInput(void* pContext, FX_LPBYTE* avail_buf_ptr)
+{
+ if (m_pExtProvider) {
+ return m_pExtProvider->GetAvailInput(pContext, avail_buf_ptr);
+ }
+ if(avail_buf_ptr != NULL) {
+ *avail_buf_ptr = NULL;
+ if(((FXJPEG_Context*)pContext)->m_SrcMgr.bytes_in_buffer > 0) {
+ *avail_buf_ptr = (FX_LPBYTE)((FXJPEG_Context*)pContext)->m_SrcMgr.next_input_byte;
+ }
+ }
+ return (FX_DWORD)((FXJPEG_Context*)pContext)->m_SrcMgr.bytes_in_buffer;
+}
diff --git a/core/src/fxcodec/codec/fx_codec_jpx_opj.cpp b/core/src/fxcodec/codec/fx_codec_jpx_opj.cpp new file mode 100644 index 0000000000..423819f69f --- /dev/null +++ b/core/src/fxcodec/codec/fx_codec_jpx_opj.cpp @@ -0,0 +1,799 @@ +// 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 "../../../include/fxcodec/fx_codec.h"
+#include "codec_int.h"
+#include "../fx_libopenjpeg/libopenjpeg20/openjpeg.h"
+#include "../lcms2/include/fx_lcms2.h"
+static void fx_error_callback(const char *msg, void *client_data)
+{
+ (void)client_data;
+}
+static void fx_warning_callback(const char *msg, void *client_data)
+{
+ (void)client_data;
+}
+static void fx_info_callback(const char *msg, void *client_data)
+{
+ (void)client_data;
+}
+typedef struct {
+ const unsigned char* src_data;
+ int src_size;
+ int offset;
+} decodeData;
+static OPJ_SIZE_T opj_read_from_memory (void * p_buffer, OPJ_SIZE_T p_nb_bytes, decodeData* srcData)
+{
+ if(srcData == NULL || srcData->src_size == 0 || srcData->src_data == NULL || srcData->offset >= srcData->src_size) {
+ return -1;
+ }
+ OPJ_SIZE_T readlength = p_nb_bytes;
+ OPJ_SIZE_T bufferLength = (OPJ_SIZE_T)(srcData->src_size - srcData->offset);
+ if(bufferLength <= 0) {
+ return 0;
+ }
+ if(bufferLength <= p_nb_bytes) {
+ readlength = bufferLength;
+ }
+ memcpy(p_buffer, &(srcData->src_data[srcData->offset]), readlength);
+ srcData->offset += (int)readlength;
+ return readlength;
+}
+static OPJ_SIZE_T opj_write_from_memory (void * p_buffer, OPJ_SIZE_T p_nb_bytes, decodeData* srcData)
+{
+ if(srcData == NULL || srcData->src_size == 0 || srcData->src_data == NULL || srcData->offset >= srcData->src_size) {
+ return -1;
+ }
+ OPJ_SIZE_T writeLength = p_nb_bytes;
+ OPJ_SIZE_T bufferLength = (OPJ_SIZE_T)(srcData->src_size - srcData->offset);
+ if(bufferLength <= p_nb_bytes) {
+ writeLength = bufferLength;
+ }
+ memcpy((void*&)(srcData->src_data[srcData->offset]), p_buffer, writeLength);
+ srcData->offset += (int)writeLength;
+ return writeLength;
+}
+static OPJ_OFF_T opj_skip_from_memory (OPJ_OFF_T p_nb_bytes, decodeData* srcData)
+{
+ if(srcData == NULL || srcData->src_size == 0 || srcData->src_data == NULL || srcData->offset >= srcData->src_size) {
+ return -1;
+ }
+ OPJ_OFF_T postion = srcData->offset + p_nb_bytes;
+ if(postion < 0 ) {
+ postion = 0;
+ } else if (postion > srcData->src_size) {
+ }
+ srcData->offset = (int)postion;
+ return p_nb_bytes;
+}
+static OPJ_BOOL opj_seek_from_memory (OPJ_OFF_T p_nb_bytes, decodeData * srcData)
+{
+ if(srcData == NULL || srcData->src_size == 0 || srcData->src_data == NULL || srcData->offset >= srcData->src_size) {
+ return -1;
+ }
+ srcData->offset = (int)p_nb_bytes;
+ if(srcData->offset < 0) {
+ srcData->offset = 0;
+ } else if(srcData->offset > srcData->src_size) {
+ srcData->offset = srcData->src_size;
+ }
+ return OPJ_TRUE;
+}
+opj_stream_t* fx_opj_stream_create_memory_stream (decodeData* data, OPJ_SIZE_T p_size, OPJ_BOOL p_is_read_stream)
+{
+ opj_stream_t* l_stream = 00;
+ if (!data || ! data->src_data || data->src_size <= 0 ) {
+ return NULL;
+ }
+ l_stream = opj_stream_create(p_size, p_is_read_stream);
+ if (! l_stream) {
+ return NULL;
+ }
+ opj_stream_set_user_data_v3(l_stream, data, NULL);
+ opj_stream_set_user_data_length(l_stream, data->src_size);
+ opj_stream_set_read_function(l_stream, (opj_stream_read_fn) opj_read_from_memory);
+ opj_stream_set_write_function(l_stream, (opj_stream_write_fn) opj_write_from_memory);
+ opj_stream_set_skip_function(l_stream, (opj_stream_skip_fn) opj_skip_from_memory);
+ opj_stream_set_seek_function(l_stream, (opj_stream_seek_fn) opj_seek_from_memory);
+ return l_stream;
+}
+static void sycc_to_rgb(int offset, int upb, int y, int cb, int cr,
+ int *out_r, int *out_g, int *out_b)
+{
+ int r, g, b;
+ cb -= offset;
+ cr -= offset;
+ r = y + (int)(1.402 * (float)cr);
+ if(r < 0) {
+ r = 0;
+ } else if(r > upb) {
+ r = upb;
+ } *out_r = r;
+ g = y - (int)(0.344 * (float)cb + 0.714 * (float)cr);
+ if(g < 0) {
+ g = 0;
+ } else if(g > upb) {
+ g = upb;
+ } *out_g = g;
+ b = y + (int)(1.772 * (float)cb);
+ if(b < 0) {
+ b = 0;
+ } else if(b > upb) {
+ b = upb;
+ } *out_b = b;
+}
+static void sycc444_to_rgb(opj_image_t *img)
+{
+ int *d0, *d1, *d2, *r, *g, *b;
+ const int *y, *cb, *cr;
+ int maxw, maxh, max, i, offset, upb;
+ i = (int)img->comps[0].prec;
+ offset = 1 << (i - 1);
+ upb = (1 << i) - 1;
+ maxw = (int)img->comps[0].w;
+ maxh = (int)img->comps[0].h;
+ max = maxw * maxh;
+ y = img->comps[0].data;
+ cb = img->comps[1].data;
+ cr = img->comps[2].data;
+ d0 = r = FX_Alloc(int, (size_t)max);
+ d1 = g = FX_Alloc(int, (size_t)max);
+ d2 = b = FX_Alloc(int, (size_t)max);
+ for(i = 0; i < max; ++i) {
+ sycc_to_rgb(offset, upb, *y, *cb, *cr, r, g, b);
+ ++y;
+ ++cb;
+ ++cr;
+ ++r;
+ ++g;
+ ++b;
+ }
+ FX_Free(img->comps[0].data);
+ img->comps[0].data = d0;
+ FX_Free(img->comps[1].data);
+ img->comps[1].data = d1;
+ FX_Free(img->comps[2].data);
+ img->comps[2].data = d2;
+}
+static void sycc422_to_rgb(opj_image_t *img)
+{
+ int *d0, *d1, *d2, *r, *g, *b;
+ const int *y, *cb, *cr;
+ int maxw, maxh, max, offset, upb;
+ int i, j;
+ i = (int)img->comps[0].prec;
+ offset = 1 << (i - 1);
+ upb = (1 << i) - 1;
+ maxw = (int)img->comps[0].w;
+ maxh = (int)img->comps[0].h;
+ max = maxw * maxh;
+ y = img->comps[0].data;
+ cb = img->comps[1].data;
+ cr = img->comps[2].data;
+ d0 = r = FX_Alloc(int, (size_t)max);
+ d1 = g = FX_Alloc(int, (size_t)max);
+ d2 = b = FX_Alloc(int, (size_t)max);
+ for(i = 0; i < maxh; ++i) {
+ for(j = 0; j < maxw; j += 2) {
+ sycc_to_rgb(offset, upb, *y, *cb, *cr, r, g, b);
+ ++y;
+ ++r;
+ ++g;
+ ++b;
+ sycc_to_rgb(offset, upb, *y, *cb, *cr, r, g, b);
+ ++y;
+ ++r;
+ ++g;
+ ++b;
+ ++cb;
+ ++cr;
+ }
+ }
+ FX_Free(img->comps[0].data);
+ img->comps[0].data = d0;
+ FX_Free(img->comps[1].data);
+ img->comps[1].data = d1;
+ FX_Free(img->comps[2].data);
+ img->comps[2].data = d2;
+ img->comps[1].w = maxw;
+ img->comps[1].h = maxh;
+ img->comps[2].w = maxw;
+ img->comps[2].h = maxh;
+ img->comps[1].w = (OPJ_UINT32)maxw;
+ img->comps[1].h = (OPJ_UINT32)maxh;
+ img->comps[2].w = (OPJ_UINT32)maxw;
+ img->comps[2].h = (OPJ_UINT32)maxh;
+ img->comps[1].dx = img->comps[0].dx;
+ img->comps[2].dx = img->comps[0].dx;
+ img->comps[1].dy = img->comps[0].dy;
+ img->comps[2].dy = img->comps[0].dy;
+}
+static void sycc420_to_rgb(opj_image_t *img)
+{
+ int *d0, *d1, *d2, *r, *g, *b, *nr, *ng, *nb;
+ const int *y, *cb, *cr, *ny;
+ int maxw, maxh, max, offset, upb;
+ int i, j;
+ i = (int)img->comps[0].prec;
+ offset = 1 << (i - 1);
+ upb = (1 << i) - 1;
+ maxw = (int)img->comps[0].w;
+ maxh = (int)img->comps[0].h;
+ max = maxw * maxh;
+ y = img->comps[0].data;
+ cb = img->comps[1].data;
+ cr = img->comps[2].data;
+ d0 = r = FX_Alloc(int, (size_t)max);
+ d1 = g = FX_Alloc(int, (size_t)max);
+ d2 = b = FX_Alloc(int, (size_t)max);
+ for(i = 0; i < maxh; i += 2) {
+ ny = y + maxw;
+ nr = r + maxw;
+ ng = g + maxw;
+ nb = b + maxw;
+ for(j = 0; j < maxw; j += 2) {
+ sycc_to_rgb(offset, upb, *y, *cb, *cr, r, g, b);
+ ++y;
+ ++r;
+ ++g;
+ ++b;
+ sycc_to_rgb(offset, upb, *y, *cb, *cr, r, g, b);
+ ++y;
+ ++r;
+ ++g;
+ ++b;
+ sycc_to_rgb(offset, upb, *ny, *cb, *cr, nr, ng, nb);
+ ++ny;
+ ++nr;
+ ++ng;
+ ++nb;
+ sycc_to_rgb(offset, upb, *ny, *cb, *cr, nr, ng, nb);
+ ++ny;
+ ++nr;
+ ++ng;
+ ++nb;
+ ++cb;
+ ++cr;
+ }
+ y += maxw;
+ r += maxw;
+ g += maxw;
+ b += maxw;
+ }
+ FX_Free(img->comps[0].data);
+ img->comps[0].data = d0;
+ FX_Free(img->comps[1].data);
+ img->comps[1].data = d1;
+ FX_Free(img->comps[2].data);
+ img->comps[2].data = d2;
+ img->comps[1].w = maxw;
+ img->comps[1].h = maxh;
+ img->comps[2].w = maxw;
+ img->comps[2].h = maxh;
+ img->comps[1].w = (OPJ_UINT32)maxw;
+ img->comps[1].h = (OPJ_UINT32)maxh;
+ img->comps[2].w = (OPJ_UINT32)maxw;
+ img->comps[2].h = (OPJ_UINT32)maxh;
+ img->comps[1].dx = img->comps[0].dx;
+ img->comps[2].dx = img->comps[0].dx;
+ img->comps[1].dy = img->comps[0].dy;
+ img->comps[2].dy = img->comps[0].dy;
+}
+void color_sycc_to_rgb(opj_image_t *img)
+{
+ if(img->numcomps < 3) {
+ img->color_space = OPJ_CLRSPC_GRAY;
+ return;
+ }
+ if((img->comps[0].dx == 1)
+ && (img->comps[1].dx == 2)
+ && (img->comps[2].dx == 2)
+ && (img->comps[0].dy == 1)
+ && (img->comps[1].dy == 2)
+ && (img->comps[2].dy == 2)) {
+ sycc420_to_rgb(img);
+ } else if((img->comps[0].dx == 1)
+ && (img->comps[1].dx == 2)
+ && (img->comps[2].dx == 2)
+ && (img->comps[0].dy == 1)
+ && (img->comps[1].dy == 1)
+ && (img->comps[2].dy == 1)) {
+ sycc422_to_rgb(img);
+ } else if((img->comps[0].dx == 1)
+ && (img->comps[1].dx == 1)
+ && (img->comps[2].dx == 1)
+ && (img->comps[0].dy == 1)
+ && (img->comps[1].dy == 1)
+ && (img->comps[2].dy == 1)) {
+ sycc444_to_rgb(img);
+ } else {
+ return;
+ }
+ img->color_space = OPJ_CLRSPC_SRGB;
+}
+void color_apply_icc_profile(opj_image_t *image)
+{
+ cmsHPROFILE in_prof, out_prof;
+ cmsHTRANSFORM transform;
+ cmsColorSpaceSignature in_space, out_space;
+ cmsUInt32Number intent, in_type, out_type, nr_samples;
+ int *r, *g, *b;
+ int prec, i, max, max_w, max_h;
+ OPJ_COLOR_SPACE oldspace;
+ in_prof =
+ cmsOpenProfileFromMem(image->icc_profile_buf, image->icc_profile_len);
+ if(in_prof == NULL) {
+ return;
+ }
+ in_space = cmsGetPCS(in_prof);
+ out_space = cmsGetColorSpace(in_prof);
+ intent = cmsGetHeaderRenderingIntent(in_prof);
+ max_w = (int)image->comps[0].w;
+ max_h = (int)image->comps[0].h;
+ prec = (int)image->comps[0].prec;
+ oldspace = image->color_space;
+ if(out_space == cmsSigRgbData) {
+ if( prec <= 8 ) {
+ in_type = TYPE_RGB_8;
+ out_type = TYPE_RGB_8;
+ } else {
+ in_type = TYPE_RGB_16;
+ out_type = TYPE_RGB_16;
+ }
+ out_prof = cmsCreate_sRGBProfile();
+ image->color_space = OPJ_CLRSPC_SRGB;
+ } else if(out_space == cmsSigGrayData) {
+ if( prec <= 8 ) {
+ in_type = TYPE_GRAY_8;
+ out_type = TYPE_RGB_8;
+ } else {
+ in_type = TYPE_GRAY_16;
+ out_type = TYPE_RGB_16;
+ }
+ out_prof = cmsCreate_sRGBProfile();
+ image->color_space = OPJ_CLRSPC_SRGB;
+ } else if(out_space == cmsSigYCbCrData) {
+ in_type = TYPE_YCbCr_16;
+ out_type = TYPE_RGB_16;
+ out_prof = cmsCreate_sRGBProfile();
+ image->color_space = OPJ_CLRSPC_SRGB;
+ } else {
+ return;
+ }
+ transform = cmsCreateTransform(in_prof, in_type,
+ out_prof, out_type, intent, 0);
+ cmsCloseProfile(in_prof);
+ cmsCloseProfile(out_prof);
+ if(transform == NULL) {
+ image->color_space = oldspace;
+ return;
+ }
+ if(image->numcomps > 2) {
+ if( prec <= 8 ) {
+ unsigned char *inbuf, *outbuf, *in, *out;
+ max = max_w * max_h;
+ nr_samples = (cmsUInt32Number)max * 3 * (cmsUInt32Number)sizeof(unsigned char);
+ in = inbuf = FX_Alloc(unsigned char, nr_samples);
+ out = outbuf = FX_Alloc(unsigned char, nr_samples);
+ r = image->comps[0].data;
+ g = image->comps[1].data;
+ b = image->comps[2].data;
+ for(i = 0; i < max; ++i) {
+ *in++ = (unsigned char) * r++;
+ *in++ = (unsigned char) * g++;
+ *in++ = (unsigned char) * b++;
+ }
+ cmsDoTransform(transform, inbuf, outbuf, (cmsUInt32Number)max);
+ r = image->comps[0].data;
+ g = image->comps[1].data;
+ b = image->comps[2].data;
+ for(i = 0; i < max; ++i) {
+ *r++ = (int) * out++;
+ *g++ = (int) * out++;
+ *b++ = (int) * out++;
+ }
+ FX_Free(inbuf);
+ FX_Free(outbuf);
+ } else {
+ unsigned short *inbuf, *outbuf, *in, *out;
+ max = max_w * max_h;
+ nr_samples = (cmsUInt32Number)max * 3 * (cmsUInt32Number)sizeof(unsigned short);
+ in = inbuf = FX_Alloc(unsigned short, nr_samples);
+ out = outbuf = FX_Alloc(unsigned short, nr_samples);
+ r = image->comps[0].data;
+ g = image->comps[1].data;
+ b = image->comps[2].data;
+ for(i = 0; i < max; ++i) {
+ *in++ = (unsigned short) * r++;
+ *in++ = (unsigned short) * g++;
+ *in++ = (unsigned short) * b++;
+ }
+ cmsDoTransform(transform, inbuf, outbuf, (cmsUInt32Number)max);
+ r = image->comps[0].data;
+ g = image->comps[1].data;
+ b = image->comps[2].data;
+ for(i = 0; i < max; ++i) {
+ *r++ = (int) * out++;
+ *g++ = (int) * out++;
+ *b++ = (int) * out++;
+ }
+ FX_Free(inbuf);
+ FX_Free(outbuf);
+ }
+ } else {
+ unsigned char *in, *inbuf, *out, *outbuf;
+ max = max_w * max_h;
+ nr_samples = (cmsUInt32Number)max * 3 * sizeof(unsigned char);
+ in = inbuf = FX_Alloc(unsigned char, nr_samples);
+ out = outbuf = FX_Alloc(unsigned char, nr_samples);
+ image->comps = (opj_image_comp_t*)
+ realloc(image->comps, (image->numcomps + 2) * sizeof(opj_image_comp_t));
+ if(image->numcomps == 2) {
+ image->comps[3] = image->comps[1];
+ }
+ image->comps[1] = image->comps[0];
+ image->comps[2] = image->comps[0];
+ image->comps[1].data = FX_Alloc(int, (size_t)max);
+ FXSYS_memset8(image->comps[1].data, 0, sizeof(int) * (size_t)max);
+ image->comps[2].data = FX_Alloc(int, (size_t)max);
+ FXSYS_memset8(image->comps[2].data, 0, sizeof(int) * (size_t)max);
+ image->numcomps += 2;
+ r = image->comps[0].data;
+ for(i = 0; i < max; ++i) {
+ *in++ = (unsigned char) * r++;
+ }
+ cmsDoTransform(transform, inbuf, outbuf, (cmsUInt32Number)max);
+ r = image->comps[0].data;
+ g = image->comps[1].data;
+ b = image->comps[2].data;
+ for(i = 0; i < max; ++i) {
+ *r++ = (int) * out++;
+ *g++ = (int) * out++;
+ *b++ = (int) * out++;
+ }
+ FX_Free(inbuf);
+ FX_Free(outbuf);
+ }
+ cmsDeleteTransform(transform);
+}
+void color_apply_conversion(opj_image_t *image)
+{
+ int *row;
+ int enumcs, numcomps;
+ numcomps = image->numcomps;
+ if(numcomps < 3) {
+ return;
+ }
+ row = (int*)image->icc_profile_buf;
+ enumcs = row[0];
+ if(enumcs == 14) {
+ int *L, *a, *b, *red, *green, *blue, *src0, *src1, *src2;
+ double rl, ol, ra, oa, rb, ob, prec0, prec1, prec2;
+ double minL, maxL, mina, maxa, minb, maxb;
+ unsigned int default_type, il;
+ unsigned int i, max, illu;
+ cmsHPROFILE in, out;
+ cmsHTRANSFORM transform;
+ cmsUInt16Number RGB[3];
+ cmsCIELab Lab;
+ illu = 0;
+ il = 0;
+ in = cmsCreateLab4Profile(NULL);
+ out = cmsCreate_sRGBProfile();
+ transform =
+ cmsCreateTransform(in, TYPE_Lab_DBL, out, TYPE_RGB_16,
+ INTENT_PERCEPTUAL, 0);
+ cmsCloseProfile(in);
+ cmsCloseProfile(out);
+ if(transform == NULL) {
+ return;
+ }
+ prec0 = (double)image->comps[0].prec;
+ prec1 = (double)image->comps[1].prec;
+ prec2 = (double)image->comps[2].prec;
+ default_type = row[1];
+ if(default_type == 0x44454600) {
+ rl = 100;
+ ra = 170;
+ rb = 200;
+ ol = 0;
+ oa = pow(2, prec1 - 1);
+ ob = pow(2, prec2 - 2) + pow(2, prec2 - 3);
+ } else {
+ rl = row[2];
+ ra = row[4];
+ rb = row[6];
+ ol = row[3];
+ oa = row[5];
+ ob = row[7];
+ }
+ L = src0 = image->comps[0].data;
+ a = src1 = image->comps[1].data;
+ b = src2 = image->comps[2].data;
+ max = image->comps[0].w * image->comps[0].h;
+ red = FX_Alloc(int, max);
+ image->comps[0].data = red;
+ green = FX_Alloc(int, max);
+ image->comps[1].data = green;
+ blue = FX_Alloc(int, max);
+ image->comps[2].data = blue;
+ minL = -(rl * ol) / (pow(2, prec0) - 1);
+ maxL = minL + rl;
+ mina = -(ra * oa) / (pow(2, prec1) - 1);
+ maxa = mina + ra;
+ minb = -(rb * ob) / (pow(2, prec2) - 1);
+ maxb = minb + rb;
+ for(i = 0; i < max; ++i) {
+ Lab.L = minL + (double)(*L) * (maxL - minL) / (pow(2, prec0) - 1);
+ ++L;
+ Lab.a = mina + (double)(*a) * (maxa - mina) / (pow(2, prec1) - 1);
+ ++a;
+ Lab.b = minb + (double)(*b) * (maxb - minb) / (pow(2, prec2) - 1);
+ ++b;
+ cmsDoTransform(transform, &Lab, RGB, 1);
+ *red++ = RGB[0];
+ *green++ = RGB[1];
+ *blue++ = RGB[2];
+ }
+ cmsDeleteTransform(transform);
+ FX_Free(src0);
+ FX_Free(src1);
+ FX_Free(src2);
+ image->color_space = OPJ_CLRSPC_SRGB;
+ image->comps[0].prec = 16;
+ image->comps[1].prec = 16;
+ image->comps[2].prec = 16;
+ return;
+ }
+}
+class CJPX_Decoder : public CFX_Object
+{
+public:
+ CJPX_Decoder();
+ ~CJPX_Decoder();
+ FX_BOOL Init(const unsigned char* src_data, int src_size);
+ void GetInfo(FX_DWORD& width, FX_DWORD& height, FX_DWORD& codestream_nComps, FX_DWORD& output_nComps);
+ FX_BOOL Decode(FX_LPBYTE dest_buf, int pitch, FX_BOOL bTranslateColor, FX_LPBYTE offsets);
+ FX_LPCBYTE m_SrcData;
+ int m_SrcSize;
+ opj_image_t *image;
+ opj_codec_t* l_codec;
+ opj_stream_t *l_stream;
+ FX_BOOL m_useColorSpace;
+};
+CJPX_Decoder::CJPX_Decoder(): image(NULL), l_codec(NULL), l_stream(NULL), m_useColorSpace(FALSE)
+{
+}
+CJPX_Decoder::~CJPX_Decoder()
+{
+ if(l_codec) {
+ opj_destroy_codec(l_codec);
+ }
+ if(l_stream) {
+ opj_stream_destroy(l_stream);
+ }
+ if(image) {
+ opj_image_destroy(image);
+ }
+}
+FX_BOOL CJPX_Decoder::Init(const unsigned char* src_data, int src_size)
+{
+ opj_dparameters_t parameters;
+ try {
+ image = NULL;
+ m_SrcData = src_data;
+ m_SrcSize = src_size;
+ decodeData srcData;
+ srcData.offset = 0;
+ srcData.src_size = src_size;
+ srcData.src_data = src_data;
+ l_stream = fx_opj_stream_create_memory_stream(&srcData, OPJ_J2K_STREAM_CHUNK_SIZE, 1);
+ if (l_stream == NULL) {
+ return FALSE;
+ }
+ opj_set_default_decoder_parameters(¶meters);
+ parameters.decod_format = 0;
+ parameters.cod_format = 3;
+ if(FXSYS_memcmp32(m_SrcData, "\x00\x00\x00\x0c\x6a\x50\x20\x20\x0d\x0a\x87\x0a", 12) == 0) {
+ l_codec = opj_create_decompress(OPJ_CODEC_JP2);
+ parameters.decod_format = 1;
+ } else {
+ l_codec = opj_create_decompress(OPJ_CODEC_J2K);
+ }
+ if(!l_codec) {
+ return FALSE;
+ }
+ opj_set_info_handler(l_codec, fx_info_callback, 00);
+ opj_set_warning_handler(l_codec, fx_warning_callback, 00);
+ opj_set_error_handler(l_codec, fx_error_callback, 00);
+ if ( !opj_setup_decoder(l_codec, ¶meters) ) {
+ return FALSE;
+ }
+ if(! opj_read_header(l_stream, l_codec, &image)) {
+ image = NULL;
+ return FALSE;
+ }
+ if(this->m_useColorSpace) {
+ image->useColorSpace = 1;
+ } else {
+ image->useColorSpace = 0;
+ }
+ if (!parameters.nb_tile_to_decode) {
+ if (!opj_set_decode_area(l_codec, image, parameters.DA_x0,
+ parameters.DA_y0, parameters.DA_x1, parameters.DA_y1)) {
+ opj_image_destroy(image);
+ image = NULL;
+ return FALSE;
+ }
+ if (!(opj_decode(l_codec, l_stream, image) && opj_end_decompress(l_codec, l_stream))) {
+ opj_image_destroy(image);
+ image = NULL;
+ return FALSE;
+ }
+ } else {
+ if (!opj_get_decoded_tile(l_codec, l_stream, image, parameters.tile_index)) {
+ return FALSE;
+ }
+ }
+ opj_stream_destroy(l_stream);
+ l_stream = NULL;
+ if( image->color_space != OPJ_CLRSPC_SYCC
+ && image->numcomps == 3 && image->comps[0].dx == image->comps[0].dy
+ && image->comps[1].dx != 1 ) {
+ image->color_space = OPJ_CLRSPC_SYCC;
+ } else if (image->numcomps <= 2) {
+ image->color_space = OPJ_CLRSPC_GRAY;
+ }
+ if(image->color_space == OPJ_CLRSPC_SYCC) {
+ color_sycc_to_rgb(image);
+ }
+ if(image->icc_profile_buf && !image->useColorSpace) {
+ FX_Free(image->icc_profile_buf);
+ image->icc_profile_buf = NULL;
+ image->icc_profile_len = 0;
+ }
+ if(!image) {
+ return FALSE;
+ }
+ } catch (...) {
+ return FALSE;
+ }
+ return TRUE;
+}
+void CJPX_Decoder::GetInfo(FX_DWORD& width, FX_DWORD& height, FX_DWORD& codestream_nComps, FX_DWORD& output_nComps)
+{
+ width = (FX_DWORD)image->x1;
+ height = (FX_DWORD)image->y1;
+ output_nComps = codestream_nComps = (FX_DWORD)image->numcomps;
+}
+FX_BOOL CJPX_Decoder::Decode(FX_LPBYTE dest_buf, int pitch, FX_BOOL bTranslateColor, FX_LPBYTE offsets)
+{
+ FX_BYTE** channel_bufs;
+ int* adjust_comps;
+ int i, wid, hei, row, col, channel, src;
+ FX_BOOL flag;
+ FX_LPBYTE pChannel, pScanline, pPixel;
+ try {
+ if(image->comps[0].w != image->x1 || image->comps[0].h != image->y1) {
+ return FALSE;
+ }
+ if(pitch < (int)(image->comps[0].w * 8 * image->numcomps + 31) >> 5 << 2) {
+ return FALSE;
+ }
+ FXSYS_memset8(dest_buf, 0xff, image->y1 * pitch);
+ channel_bufs = FX_Alloc(FX_BYTE*, image->numcomps);
+ if (channel_bufs == NULL) {
+ return FALSE;
+ }
+ adjust_comps = FX_Alloc(int, image->numcomps);
+ if (adjust_comps == NULL) {
+ FX_Free(channel_bufs);
+ return FALSE;
+ }
+ flag = TRUE;
+ for (i = 0; i < (int)image->numcomps; i ++) {
+ channel_bufs[i] = dest_buf + offsets[i];
+ adjust_comps[i] = image->comps[i].prec - 8;
+ if(i > 0) {
+ if(image->comps[i].dx != image->comps[i - 1].dx
+ || image->comps[i].dy != image->comps[i - 1].dy
+ || image->comps[i].prec != image->comps[i - 1].prec) {
+ flag = FALSE;
+ goto failed;
+ }
+ }
+ }
+ wid = image->comps[0].w;
+ hei = image->comps[0].h;
+ for (channel = 0; channel < (int)image->numcomps; channel++) {
+ pChannel = channel_bufs[channel];
+ if(adjust_comps[channel] < 0) {
+ for(row = 0; row < hei; row++) {
+ pScanline = pChannel + row * pitch;
+ for (col = 0; col < wid; col++) {
+ pPixel = pScanline + col * image->numcomps;
+ src = image->comps[channel].data[row * wid + col];
+ src += image->comps[channel].sgnd ? 1 << (image->comps[channel].prec - 1) : 0;
+ if (adjust_comps[channel] > 0) {
+ *pPixel = 0;
+ } else {
+ *pPixel = (FX_BYTE)(src << -adjust_comps[channel]);
+ }
+ }
+ }
+ } else {
+ for(row = 0; row < hei; row++) {
+ pScanline = pChannel + row * pitch;
+ for (col = 0; col < wid; col++) {
+ pPixel = pScanline + col * image->numcomps;
+ if (!image->comps[channel].data) continue;
+ src = image->comps[channel].data[row * wid + col];
+ src += image->comps[channel].sgnd ? 1 << (image->comps[channel].prec - 1) : 0;
+ if (adjust_comps[channel] - 1 < 0) {
+ *pPixel = (FX_BYTE)((src >> adjust_comps[channel]));
+ } else {
+ int tmpPixel = (src >> adjust_comps[channel]) + ((src >> (adjust_comps[channel] - 1)) % 2);
+ if (tmpPixel > 255) {
+ tmpPixel = 255;
+ } else if (tmpPixel < 0) {
+ tmpPixel = 0;
+ }
+ *pPixel = (FX_BYTE)tmpPixel;
+ }
+ }
+ }
+ }
+ }
+ } catch (...) {
+ if (channel_bufs) {
+ FX_Free(channel_bufs);
+ }
+ FX_Free(adjust_comps);
+ return FALSE;
+ }
+ FX_Free(channel_bufs);
+ FX_Free(adjust_comps);
+ return TRUE;
+failed:
+ FX_Free(channel_bufs);
+ FX_Free(adjust_comps);
+ return FALSE;
+}
+void initialize_transition_table();
+void initialize_significance_luts();
+void initialize_sign_lut();
+CCodec_JpxModule::CCodec_JpxModule()
+{
+}
+void* CCodec_JpxModule::CreateDecoder(FX_LPCBYTE src_buf, FX_DWORD src_size , FX_BOOL useColorSpace)
+{
+ CJPX_Decoder* pDecoder = FX_NEW CJPX_Decoder;
+ if (pDecoder == NULL) {
+ return NULL;
+ }
+ pDecoder->m_useColorSpace = useColorSpace;
+ if (!pDecoder->Init(src_buf, src_size)) {
+ delete pDecoder;
+ return NULL;
+ }
+ return pDecoder;
+}
+void CCodec_JpxModule::GetImageInfo(FX_LPVOID ctx, FX_DWORD& width, FX_DWORD& height,
+ FX_DWORD& codestream_nComps, FX_DWORD& output_nComps)
+{
+ CJPX_Decoder* pDecoder = (CJPX_Decoder*)ctx;
+ pDecoder->GetInfo(width, height, codestream_nComps, output_nComps);
+}
+FX_BOOL CCodec_JpxModule::Decode(void* ctx, FX_LPBYTE dest_data, int pitch, FX_BOOL bTranslateColor, FX_LPBYTE offsets)
+{
+ CJPX_Decoder* pDecoder = (CJPX_Decoder*)ctx;
+ return pDecoder->Decode(dest_data, pitch, bTranslateColor, offsets);
+}
+void CCodec_JpxModule::DestroyDecoder(void* ctx)
+{
+ CJPX_Decoder* pDecoder = (CJPX_Decoder*)ctx;
+ delete pDecoder;
+}
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