summaryrefslogtreecommitdiff
path: root/core/src/fxcodec/lgif
diff options
context:
space:
mode:
Diffstat (limited to 'core/src/fxcodec/lgif')
-rw-r--r--core/src/fxcodec/lgif/fx_gif.cpp480
-rw-r--r--core/src/fxcodec/lgif/fx_gif.h110
2 files changed, 221 insertions, 369 deletions
diff --git a/core/src/fxcodec/lgif/fx_gif.cpp b/core/src/fxcodec/lgif/fx_gif.cpp
index ffac891032..a4de72978a 100644
--- a/core/src/fxcodec/lgif/fx_gif.cpp
+++ b/core/src/fxcodec/lgif/fx_gif.cpp
@@ -5,6 +5,9 @@
// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
#include "core/src/fxcodec/lgif/fx_gif.h"
+
+#include "core/src/fxcodec/lbmp/fx_bmp.h"
+
void CGifLZWDecoder::Input(uint8_t* src_buf, FX_DWORD src_size) {
next_in = src_buf;
avail_in = src_size;
@@ -141,9 +144,9 @@ int32_t CGifLZWDecoder::Decode(uint8_t* des_buf, FX_DWORD& des_size) {
}
return 0;
}
-static FX_BOOL _gif_grow_buf(uint8_t*& dst_buf,
- FX_DWORD& dst_len,
- FX_DWORD size) {
+static FX_BOOL gif_grow_buf(uint8_t*& dst_buf,
+ FX_DWORD& dst_len,
+ FX_DWORD size) {
if (dst_len < size) {
FX_DWORD len_org = dst_len;
while (dst_buf && dst_len < size) {
@@ -162,19 +165,19 @@ static FX_BOOL _gif_grow_buf(uint8_t*& dst_buf,
}
return TRUE;
}
-static inline void _gif_cut_index(uint8_t& val,
- FX_DWORD index,
- uint8_t index_bit,
- uint8_t index_bit_use,
- uint8_t bit_use) {
+static inline void gif_cut_index(uint8_t& val,
+ FX_DWORD index,
+ uint8_t index_bit,
+ uint8_t index_bit_use,
+ uint8_t bit_use) {
FX_DWORD cut = ((1 << (index_bit - index_bit_use)) - 1) << index_bit_use;
val |= ((index & cut) >> index_bit_use) << bit_use;
}
-static inline uint8_t _gif_cut_buf(const uint8_t* buf,
- FX_DWORD& offset,
- uint8_t bit_cut,
- uint8_t& bit_offset,
- FX_DWORD& bit_num) {
+static inline uint8_t gif_cut_buf(const uint8_t* buf,
+ FX_DWORD& offset,
+ uint8_t bit_cut,
+ uint8_t& bit_offset,
+ FX_DWORD& bit_num) {
if (bit_cut != 8) {
FX_WORD index = 0;
index |= ((1 << bit_cut) - 1) << (7 - bit_offset);
@@ -224,15 +227,15 @@ void CGifLZWEncoder::Start(uint8_t code_len,
src_offset = 0;
src_bit_offset = 0;
src_bit_num = 0;
- code_table[index_num].prefix = _gif_cut_buf(src_buf, src_offset, src_bit_cut,
- src_bit_offset, src_bit_num);
- code_table[index_num].suffix = _gif_cut_buf(src_buf, src_offset, src_bit_cut,
- src_bit_offset, src_bit_num);
+ code_table[index_num].prefix = gif_cut_buf(src_buf, src_offset, src_bit_cut,
+ src_bit_offset, src_bit_num);
+ code_table[index_num].suffix = gif_cut_buf(src_buf, src_offset, src_bit_cut,
+ src_bit_offset, src_bit_num);
}
void CGifLZWEncoder::WriteBlock(uint8_t*& dst_buf,
FX_DWORD& dst_len,
FX_DWORD& offset) {
- if (!_gif_grow_buf(dst_buf, dst_len, offset + GIF_DATA_BLOCK + 1)) {
+ if (!gif_grow_buf(dst_buf, dst_len, offset + GIF_DATA_BLOCK + 1)) {
longjmp(jmp, 1);
}
dst_buf[offset++] = index_buf_len;
@@ -250,8 +253,8 @@ void CGifLZWEncoder::EncodeString(FX_DWORD index,
if (index_buf_len == GIF_DATA_BLOCK) {
WriteBlock(dst_buf, dst_len, offset);
}
- _gif_cut_index(index_buf[index_buf_len], index, index_bit_cur, index_bit_use,
- bit_offset);
+ gif_cut_index(index_buf[index_buf_len], index, index_bit_cur, index_bit_use,
+ bit_offset);
if (index_bit_cur <= (8 - bit_offset)) {
bit_offset += index_bit_cur;
} else if (index_bit_cur <= (16 - bit_offset)) {
@@ -261,8 +264,8 @@ void CGifLZWEncoder::EncodeString(FX_DWORD index,
if (index_buf_len == GIF_DATA_BLOCK) {
WriteBlock(dst_buf, dst_len, offset);
}
- _gif_cut_index(index_buf[index_buf_len], index, index_bit_cur,
- index_bit_use, bit_offset);
+ gif_cut_index(index_buf[index_buf_len], index, index_bit_cur, index_bit_use,
+ bit_offset);
bit_offset = index_bit_cur - index_bit_use;
} else {
index_bit_use += (8 - bit_offset);
@@ -271,16 +274,16 @@ void CGifLZWEncoder::EncodeString(FX_DWORD index,
if (index_buf_len == GIF_DATA_BLOCK) {
WriteBlock(dst_buf, dst_len, offset);
}
- _gif_cut_index(index_buf[index_buf_len], index, index_bit_cur,
- index_bit_use, bit_offset);
+ gif_cut_index(index_buf[index_buf_len], index, index_bit_cur, index_bit_use,
+ bit_offset);
index_bit_use += 8;
bit_offset = 0;
index_buf_len++;
if (index_buf_len == GIF_DATA_BLOCK) {
WriteBlock(dst_buf, dst_len, offset);
}
- _gif_cut_index(index_buf[index_buf_len], index, index_bit_cur,
- index_bit_use, bit_offset);
+ gif_cut_index(index_buf[index_buf_len], index, index_bit_cur, index_bit_use,
+ bit_offset);
bit_offset = index_bit_cur - index_bit_use;
}
if (bit_offset == 8) {
@@ -315,11 +318,11 @@ FX_BOOL CGifLZWEncoder::Encode(const uint8_t* src_buf,
EncodeString(code_clear, dst_buf, dst_len, offset);
ClearTable();
code_table[index_num].prefix = suffix;
- code_table[index_num].suffix = _gif_cut_buf(
+ code_table[index_num].suffix = gif_cut_buf(
src_buf, src_offset, src_bit_cut, src_bit_offset, src_bit_num);
} else {
code_table[index_num].prefix = code_table[index_num - 1].suffix;
- code_table[index_num].suffix = _gif_cut_buf(
+ code_table[index_num].suffix = gif_cut_buf(
src_buf, src_offset, src_bit_cut, src_bit_offset, src_bit_num);
}
}
@@ -337,7 +340,7 @@ FX_BOOL CGifLZWEncoder::LookUpInTable(const uint8_t* buf,
code_table[i].suffix == code_table[index_num].suffix) {
code_table[index_num].prefix = i;
code_table[index_num].suffix =
- _gif_cut_buf(buf, offset, src_bit_cut, bit_offset, src_bit_num);
+ gif_cut_buf(buf, offset, src_bit_cut, bit_offset, src_bit_num);
table_cur = i;
return TRUE;
}
@@ -353,7 +356,7 @@ void CGifLZWEncoder::Finish(uint8_t*& dst_buf,
bit_offset = 0;
ClearTable();
}
-gif_decompress_struct_p _gif_create_decompress() {
+gif_decompress_struct_p gif_create_decompress() {
gif_decompress_struct_p gif_ptr =
(gif_decompress_struct*)FX_Alloc(uint8_t, sizeof(gif_decompress_struct));
if (gif_ptr == NULL) {
@@ -362,15 +365,11 @@ gif_decompress_struct_p _gif_create_decompress() {
FXSYS_memset(gif_ptr, 0, sizeof(gif_decompress_struct));
gif_ptr->decode_status = GIF_D_STATUS_SIG;
gif_ptr->img_ptr_arr_ptr = new CFX_ArrayTemplate<GifImage*>;
-#ifdef GIF_SUPPORT_COMMENT_EXTENSION
gif_ptr->cmt_data_ptr = new CFX_ByteString;
-#endif
-#ifdef GIF_SUPPORT_PLAIN_TEXT_EXTENSION
gif_ptr->pt_ptr_arr_ptr = new CFX_ArrayTemplate<GifPlainText*>;
-#endif
return gif_ptr;
}
-void _gif_destroy_decompress(gif_decompress_struct_pp gif_ptr_ptr) {
+void gif_destroy_decompress(gif_decompress_struct_pp gif_ptr_ptr) {
if (gif_ptr_ptr == NULL || *gif_ptr_ptr == NULL) {
return;
}
@@ -393,16 +392,8 @@ void _gif_destroy_decompress(gif_decompress_struct_pp gif_ptr_ptr) {
gif_ptr->img_ptr_arr_ptr->RemoveAll();
delete gif_ptr->img_ptr_arr_ptr;
}
-#ifdef GIF_SUPPORT_APPLICATION_EXTENSION
- FX_Free(gif_ptr->app_data);
-#endif
-#ifdef GIF_SUPPORT_COMMENT_EXTENSION
delete gif_ptr->cmt_data_ptr;
-#endif
-#ifdef GIF_SUPPORT_GRAPHIC_CONTROL_EXTENSION
FX_Free(gif_ptr->gce_ptr);
-#endif
-#ifdef GIF_SUPPORT_PLAIN_TEXT_EXTENSION
if (gif_ptr->pt_ptr_arr_ptr) {
int32_t size_pt_arr = gif_ptr->pt_ptr_arr_ptr->GetSize();
for (int32_t i = 0; i < size_pt_arr; i++) {
@@ -414,10 +405,9 @@ void _gif_destroy_decompress(gif_decompress_struct_pp gif_ptr_ptr) {
gif_ptr->pt_ptr_arr_ptr->RemoveAll();
delete gif_ptr->pt_ptr_arr_ptr;
}
-#endif
FX_Free(gif_ptr);
}
-gif_compress_struct_p _gif_create_compress() {
+gif_compress_struct_p gif_create_compress() {
gif_compress_struct_p gif_ptr =
(gif_compress_struct*)FX_Alloc(uint8_t, sizeof(gif_compress_struct));
if (gif_ptr == NULL) {
@@ -451,11 +441,6 @@ gif_compress_struct_p _gif_create_compress() {
return NULL;
}
FXSYS_memset(gif_ptr->image_info_ptr, 0, sizeof(GifImageInfo));
-#ifdef GIF_SUPPORT_APPLICATION_EXTENSION
- FXSYS_memcpy(gif_ptr->app_identify, "netscape", 8);
- FXSYS_memcpy(gif_ptr->app_authentication, "2.0", 3);
-#endif
-#ifdef GIF_SUPPORT_GRAPHIC_CONTROL_EXTENSION
gif_ptr->gce_ptr = (GifGCE*)FX_Alloc(uint8_t, sizeof(GifGCE));
if (gif_ptr->gce_ptr == NULL) {
FX_Free(gif_ptr->image_info_ptr);
@@ -465,8 +450,6 @@ gif_compress_struct_p _gif_create_compress() {
FX_Free(gif_ptr);
return NULL;
}
-#endif
-#ifdef GIF_SUPPORT_PLAIN_TEXT_EXTENSION
gif_ptr->pte_ptr = (GifPTE*)FX_Alloc(uint8_t, sizeof(GifPTE));
if (gif_ptr->pte_ptr == NULL) {
FX_Free(gif_ptr->gce_ptr);
@@ -479,10 +462,9 @@ gif_compress_struct_p _gif_create_compress() {
}
FXSYS_memset(gif_ptr->pte_ptr, 0, sizeof(GifPTE));
gif_ptr->pte_ptr->block_size = 12;
-#endif
return gif_ptr;
}
-void _gif_destroy_compress(gif_compress_struct_pp gif_ptr_ptr) {
+void gif_destroy_compress(gif_compress_struct_pp gif_ptr_ptr) {
if (gif_ptr_ptr == NULL || *gif_ptr_ptr == NULL) {
return;
}
@@ -494,44 +476,35 @@ void _gif_destroy_compress(gif_compress_struct_pp gif_ptr_ptr) {
FX_Free(gif_ptr->image_info_ptr);
FX_Free(gif_ptr->local_pal);
delete gif_ptr->img_encoder_ptr;
-#ifdef GIF_SUPPORT_APPLICATION_EXTENSION
- FX_Free(gif_ptr->app_data);
-#endif
-#ifdef GIF_SUPPORT_GRAPHIC_CONTROL_EXTENSION
FX_Free(gif_ptr->gce_ptr);
-#endif
-#ifdef GIF_SUPPORT_COMMENT_EXTENSION
FX_Free(gif_ptr->cmt_data_ptr);
-#endif
-#ifdef GIF_SUPPORT_PLAIN_TEXT_EXTENSION
FX_Free(gif_ptr->pte_ptr);
-#endif
FX_Free(gif_ptr);
}
-void _gif_error(gif_decompress_struct_p gif_ptr, const FX_CHAR* err_msg) {
- if (gif_ptr && gif_ptr->_gif_error_fn) {
- gif_ptr->_gif_error_fn(gif_ptr, err_msg);
+void gif_error(gif_decompress_struct_p gif_ptr, const FX_CHAR* err_msg) {
+ if (gif_ptr && gif_ptr->gif_error_fn) {
+ gif_ptr->gif_error_fn(gif_ptr, err_msg);
}
}
-void _gif_warn(gif_decompress_struct_p gif_ptr, const FX_CHAR* err_msg) {}
-int32_t _gif_read_header(gif_decompress_struct_p gif_ptr) {
+void gif_warn(gif_decompress_struct_p gif_ptr, const FX_CHAR* err_msg) {}
+int32_t gif_read_header(gif_decompress_struct_p gif_ptr) {
if (gif_ptr == NULL) {
return 0;
}
FX_DWORD skip_size_org = gif_ptr->skip_size;
ASSERT(sizeof(GifHeader) == 6);
GifHeader* gif_header_ptr = NULL;
- if (_gif_read_data(gif_ptr, (uint8_t**)&gif_header_ptr, 6) == NULL) {
+ if (gif_read_data(gif_ptr, (uint8_t**)&gif_header_ptr, 6) == NULL) {
return 2;
}
if (FXSYS_strncmp(gif_header_ptr->signature, GIF_SIGNATURE, 3) != 0 ||
gif_header_ptr->version[0] != '8' || gif_header_ptr->version[2] != 'a') {
- _gif_error(gif_ptr, "Not A Gif Image");
+ gif_error(gif_ptr, "Not A Gif Image");
return 0;
}
ASSERT(sizeof(GifLSD) == 7);
GifLSD* gif_lsd_ptr = NULL;
- if (_gif_read_data(gif_ptr, (uint8_t**)&gif_lsd_ptr, 7) == NULL) {
+ if (gif_read_data(gif_ptr, (uint8_t**)&gif_lsd_ptr, 7) == NULL) {
gif_ptr->skip_size = skip_size_org;
return 2;
}
@@ -541,7 +514,7 @@ int32_t _gif_read_header(gif_decompress_struct_p gif_ptr) {
ASSERT(sizeof(GifPalette) == 3);
int32_t global_pal_size = gif_ptr->global_pal_num * 3;
uint8_t* global_pal_ptr = NULL;
- if (_gif_read_data(gif_ptr, &global_pal_ptr, global_pal_size) == NULL) {
+ if (gif_read_data(gif_ptr, &global_pal_ptr, global_pal_size) == NULL) {
gif_ptr->skip_size = skip_size_org;
return 2;
}
@@ -552,13 +525,13 @@ int32_t _gif_read_header(gif_decompress_struct_p gif_ptr) {
gif_ptr->global_pal_ptr = (GifPalette*)FX_Alloc(uint8_t, global_pal_size);
FXSYS_memcpy(gif_ptr->global_pal_ptr, global_pal_ptr, global_pal_size);
}
- gif_ptr->width = (int)_GetWord_LSBFirst((uint8_t*)&gif_lsd_ptr->width);
- gif_ptr->height = (int)_GetWord_LSBFirst((uint8_t*)&gif_lsd_ptr->height);
+ gif_ptr->width = (int)GetWord_LSBFirst((uint8_t*)&gif_lsd_ptr->width);
+ gif_ptr->height = (int)GetWord_LSBFirst((uint8_t*)&gif_lsd_ptr->height);
gif_ptr->bc_index = gif_lsd_ptr->bc_index;
gif_ptr->pixel_aspect = gif_lsd_ptr->pixel_aspect;
return 1;
}
-int32_t _gif_get_frame(gif_decompress_struct_p gif_ptr) {
+int32_t gif_get_frame(gif_decompress_struct_p gif_ptr) {
if (gif_ptr == NULL) {
return 0;
}
@@ -569,69 +542,56 @@ int32_t _gif_get_frame(gif_decompress_struct_p gif_ptr) {
return 1;
case GIF_D_STATUS_SIG: {
uint8_t* sig_ptr = NULL;
- if (_gif_read_data(gif_ptr, &sig_ptr, 1) == NULL) {
+ if (gif_read_data(gif_ptr, &sig_ptr, 1) == NULL) {
return 2;
}
switch (*sig_ptr) {
case GIF_SIG_EXTENSION:
- _gif_save_decoding_status(gif_ptr, GIF_D_STATUS_EXT);
+ gif_save_decoding_status(gif_ptr, GIF_D_STATUS_EXT);
continue;
case GIF_SIG_IMAGE:
- _gif_save_decoding_status(gif_ptr, GIF_D_STATUS_IMG_INFO);
+ gif_save_decoding_status(gif_ptr, GIF_D_STATUS_IMG_INFO);
continue;
case GIF_SIG_TRAILER:
- _gif_save_decoding_status(gif_ptr, GIF_D_STATUS_TAIL);
+ gif_save_decoding_status(gif_ptr, GIF_D_STATUS_TAIL);
return 1;
default:
if (gif_ptr->avail_in) {
- _gif_warn(gif_ptr, "The Gif File has non_standard Tag!");
- _gif_save_decoding_status(gif_ptr, GIF_D_STATUS_SIG);
+ gif_warn(gif_ptr, "The Gif File has non_standard Tag!");
+ gif_save_decoding_status(gif_ptr, GIF_D_STATUS_SIG);
continue;
}
- _gif_warn(gif_ptr, "The Gif File Doesn't have Trailer Tag!");
+ gif_warn(gif_ptr, "The Gif File Doesn't have Trailer Tag!");
return 1;
}
}
case GIF_D_STATUS_EXT: {
uint8_t* ext_ptr = NULL;
- if (_gif_read_data(gif_ptr, &ext_ptr, 1) == NULL) {
+ if (gif_read_data(gif_ptr, &ext_ptr, 1) == NULL) {
return 2;
}
switch (*ext_ptr) {
-#ifdef GIF_SUPPORT_APPLICATION_EXTENSION
- case GIF_BLOCK_AE:
- _gif_save_decoding_status(gif_ptr, GIF_D_STATUS_EXT_AE);
- continue;
-#endif
-#ifdef GIF_SUPPORT_COMMENT_EXTENSION
case GIF_BLOCK_CE:
- _gif_save_decoding_status(gif_ptr, GIF_D_STATUS_EXT_CE);
+ gif_save_decoding_status(gif_ptr, GIF_D_STATUS_EXT_CE);
continue;
-#endif
-#ifdef GIF_SUPPORT_GRAPHIC_CONTROL_EXTENSION
case GIF_BLOCK_GCE:
- _gif_save_decoding_status(gif_ptr, GIF_D_STATUS_EXT_GCE);
+ gif_save_decoding_status(gif_ptr, GIF_D_STATUS_EXT_GCE);
continue;
-#endif
-#ifdef GIF_SUPPORT_PLAIN_TEXT_EXTENSION
case GIF_BLOCK_PTE:
- _gif_save_decoding_status(gif_ptr, GIF_D_STATUS_EXT_PTE);
+ gif_save_decoding_status(gif_ptr, GIF_D_STATUS_EXT_PTE);
continue;
-#endif
default: {
int32_t status = GIF_D_STATUS_EXT_UNE;
-#ifndef GIF_SUPPORT_PLAIN_TEXT_EXTENSION
if (*ext_ptr == GIF_BLOCK_PTE) {
status = GIF_D_STATUS_EXT_PTE;
}
-#endif
- _gif_save_decoding_status(gif_ptr, status);
+ gif_save_decoding_status(gif_ptr, status);
continue;
}
}
}
case GIF_D_STATUS_IMG_INFO: {
- ret = _gif_decode_image_info(gif_ptr);
+ ret = gif_decode_image_info(gif_ptr);
if (ret != 1) {
return ret;
}
@@ -641,25 +601,25 @@ int32_t _gif_get_frame(gif_decompress_struct_p gif_ptr) {
uint8_t* data_size_ptr = NULL;
uint8_t* data_ptr = NULL;
FX_DWORD skip_size_org = gif_ptr->skip_size;
- if (_gif_read_data(gif_ptr, &data_size_ptr, 1) == NULL) {
+ if (gif_read_data(gif_ptr, &data_size_ptr, 1) == NULL) {
return 2;
}
while (*data_size_ptr != GIF_BLOCK_TERMINAL) {
- if (_gif_read_data(gif_ptr, &data_ptr, *data_size_ptr) == NULL) {
+ if (gif_read_data(gif_ptr, &data_ptr, *data_size_ptr) == NULL) {
gif_ptr->skip_size = skip_size_org;
return 2;
}
- _gif_save_decoding_status(gif_ptr, GIF_D_STATUS_IMG_DATA);
+ gif_save_decoding_status(gif_ptr, GIF_D_STATUS_IMG_DATA);
skip_size_org = gif_ptr->skip_size;
- if (_gif_read_data(gif_ptr, &data_size_ptr, 1) == NULL) {
+ if (gif_read_data(gif_ptr, &data_size_ptr, 1) == NULL) {
return 2;
}
}
- _gif_save_decoding_status(gif_ptr, GIF_D_STATUS_SIG);
+ gif_save_decoding_status(gif_ptr, GIF_D_STATUS_SIG);
continue;
}
default: {
- ret = _gif_decode_extension(gif_ptr);
+ ret = gif_decode_extension(gif_ptr);
if (ret != 1) {
return ret;
}
@@ -669,63 +629,29 @@ int32_t _gif_get_frame(gif_decompress_struct_p gif_ptr) {
}
return 1;
}
-void _gif_takeover_gce_ptr(gif_decompress_struct_p gif_ptr,
- GifGCE** gce_ptr_ptr) {
+void gif_takeover_gce_ptr(gif_decompress_struct_p gif_ptr,
+ GifGCE** gce_ptr_ptr) {
*gce_ptr_ptr = NULL;
-#ifdef GIF_SUPPORT_GRAPHIC_CONTROL_EXTENSION
if (gif_ptr->gce_ptr && gce_ptr_ptr) {
*gce_ptr_ptr = gif_ptr->gce_ptr;
gif_ptr->gce_ptr = NULL;
}
-#endif
}
-int32_t _gif_decode_extension(gif_decompress_struct_p gif_ptr) {
+int32_t gif_decode_extension(gif_decompress_struct_p gif_ptr) {
uint8_t* data_size_ptr = NULL;
uint8_t* data_ptr = NULL;
FX_DWORD skip_size_org = gif_ptr->skip_size;
switch (gif_ptr->decode_status) {
-#ifdef GIF_SUPPORT_APPLICATION_EXTENSION
- case GIF_D_STATUS_EXT_AE: {
- ASSERT(sizeof(GifAE) == 12);
- GifAE* gif_ae_ptr = NULL;
- if (_gif_read_data(gif_ptr, (uint8_t**)&gif_ae_ptr, 12) == NULL) {
- return 2;
- }
- CFX_ByteString gif_ae_data_str;
- if (_gif_read_data(gif_ptr, &data_size_ptr, 1) == NULL) {
- gif_ptr->skip_size = skip_size_org;
- return 2;
- }
- while (*data_size_ptr != GIF_BLOCK_TERMINAL) {
- uint8_t data_size = *data_size_ptr;
- if (_gif_read_data(gif_ptr, &data_ptr, *data_size_ptr) == NULL ||
- _gif_read_data(gif_ptr, &data_size_ptr, 1) == NULL) {
- gif_ptr->skip_size = skip_size_org;
- return 2;
- }
- gif_ae_data_str += CFX_ByteString((const uint8_t*)data_ptr, data_size);
- }
- FXSYS_memcpy(gif_ptr->app_identify, gif_ae_ptr->app_identify, 8);
- FXSYS_memcpy(gif_ptr->app_authentication, gif_ae_ptr->app_authentication,
- 3);
- gif_ptr->app_data_size = gif_ae_data_str.GetLength();
- FX_Free(gif_ptr->app_data);
- gif_ptr->app_data = FX_Alloc(uint8_t, gif_ptr->app_data_size);
- FXSYS_memcpy(gif_ptr->app_data, const uint8_t*(gif_ae_data_str),
- gif_ptr->app_data_size);
- } break;
-#endif
-#ifdef GIF_SUPPORT_COMMENT_EXTENSION
case GIF_D_STATUS_EXT_CE: {
- if (_gif_read_data(gif_ptr, &data_size_ptr, 1) == NULL) {
+ if (gif_read_data(gif_ptr, &data_size_ptr, 1) == NULL) {
gif_ptr->skip_size = skip_size_org;
return 2;
}
gif_ptr->cmt_data_ptr->Empty();
while (*data_size_ptr != GIF_BLOCK_TERMINAL) {
uint8_t data_size = *data_size_ptr;
- if (_gif_read_data(gif_ptr, &data_ptr, *data_size_ptr) == NULL ||
- _gif_read_data(gif_ptr, &data_size_ptr, 1) == NULL) {
+ if (gif_read_data(gif_ptr, &data_ptr, *data_size_ptr) == NULL ||
+ gif_read_data(gif_ptr, &data_size_ptr, 1) == NULL) {
gif_ptr->skip_size = skip_size_org;
return 2;
}
@@ -733,33 +659,31 @@ int32_t _gif_decode_extension(gif_decompress_struct_p gif_ptr) {
CFX_ByteString((const FX_CHAR*)data_ptr, data_size);
}
} break;
-#endif
-#ifdef GIF_SUPPORT_PLAIN_TEXT_EXTENSION
case GIF_D_STATUS_EXT_PTE: {
ASSERT(sizeof(GifPTE) == 13);
GifPTE* gif_pte_ptr = NULL;
- if (_gif_read_data(gif_ptr, (uint8_t**)&gif_pte_ptr, 13) == NULL) {
+ if (gif_read_data(gif_ptr, (uint8_t**)&gif_pte_ptr, 13) == NULL) {
return 2;
}
GifPlainText* gif_pt_ptr = FX_Alloc(GifPlainText, 1);
FXSYS_memset(gif_pt_ptr, 0, sizeof(GifPlainText));
- _gif_takeover_gce_ptr(gif_ptr, &gif_pt_ptr->gce_ptr);
+ gif_takeover_gce_ptr(gif_ptr, &gif_pt_ptr->gce_ptr);
gif_pt_ptr->pte_ptr = (GifPTE*)FX_Alloc(uint8_t, sizeof(GifPTE));
gif_pt_ptr->string_ptr = new CFX_ByteString;
gif_pt_ptr->pte_ptr->block_size = gif_pte_ptr->block_size;
gif_pt_ptr->pte_ptr->grid_left =
- _GetWord_LSBFirst((uint8_t*)&gif_pte_ptr->grid_left);
+ GetWord_LSBFirst((uint8_t*)&gif_pte_ptr->grid_left);
gif_pt_ptr->pte_ptr->grid_top =
- _GetWord_LSBFirst((uint8_t*)&gif_pte_ptr->grid_top);
+ GetWord_LSBFirst((uint8_t*)&gif_pte_ptr->grid_top);
gif_pt_ptr->pte_ptr->grid_width =
- _GetWord_LSBFirst((uint8_t*)&gif_pte_ptr->grid_width);
+ GetWord_LSBFirst((uint8_t*)&gif_pte_ptr->grid_width);
gif_pt_ptr->pte_ptr->grid_height =
- _GetWord_LSBFirst((uint8_t*)&gif_pte_ptr->grid_height);
+ GetWord_LSBFirst((uint8_t*)&gif_pte_ptr->grid_height);
gif_pt_ptr->pte_ptr->char_width = gif_pte_ptr->char_width;
gif_pt_ptr->pte_ptr->char_height = gif_pte_ptr->char_height;
gif_pt_ptr->pte_ptr->fc_index = gif_pte_ptr->fc_index;
gif_pt_ptr->pte_ptr->bc_index = gif_pte_ptr->bc_index;
- if (_gif_read_data(gif_ptr, &data_size_ptr, 1) == NULL) {
+ if (gif_read_data(gif_ptr, &data_size_ptr, 1) == NULL) {
gif_ptr->skip_size = skip_size_org;
if (gif_pt_ptr) {
FX_Free(gif_pt_ptr->gce_ptr);
@@ -771,8 +695,8 @@ int32_t _gif_decode_extension(gif_decompress_struct_p gif_ptr) {
}
while (*data_size_ptr != GIF_BLOCK_TERMINAL) {
uint8_t data_size = *data_size_ptr;
- if (_gif_read_data(gif_ptr, &data_ptr, *data_size_ptr) == NULL ||
- _gif_read_data(gif_ptr, &data_size_ptr, 1) == NULL) {
+ if (gif_read_data(gif_ptr, &data_ptr, *data_size_ptr) == NULL ||
+ gif_read_data(gif_ptr, &data_size_ptr, 1) == NULL) {
gif_ptr->skip_size = skip_size_org;
if (gif_pt_ptr) {
FX_Free(gif_pt_ptr->gce_ptr);
@@ -787,12 +711,10 @@ int32_t _gif_decode_extension(gif_decompress_struct_p gif_ptr) {
}
gif_ptr->pt_ptr_arr_ptr->Add(gif_pt_ptr);
} break;
-#endif
-#ifdef GIF_SUPPORT_GRAPHIC_CONTROL_EXTENSION
case GIF_D_STATUS_EXT_GCE: {
ASSERT(sizeof(GifGCE) == 5);
GifGCE* gif_gce_ptr = NULL;
- if (_gif_read_data(gif_ptr, (uint8_t**)&gif_gce_ptr, 6) == NULL) {
+ if (gif_read_data(gif_ptr, (uint8_t**)&gif_gce_ptr, 6) == NULL) {
return 2;
}
if (gif_ptr->gce_ptr == NULL) {
@@ -801,43 +723,38 @@ int32_t _gif_decode_extension(gif_decompress_struct_p gif_ptr) {
gif_ptr->gce_ptr->block_size = gif_gce_ptr->block_size;
gif_ptr->gce_ptr->gce_flag = gif_gce_ptr->gce_flag;
gif_ptr->gce_ptr->delay_time =
- _GetWord_LSBFirst((uint8_t*)&gif_gce_ptr->delay_time);
+ GetWord_LSBFirst((uint8_t*)&gif_gce_ptr->delay_time);
gif_ptr->gce_ptr->trans_index = gif_gce_ptr->trans_index;
} break;
-#endif
default: {
-#ifndef GIF_SUPPORT_PLAIN_TEXT_EXTENSION
-#ifdef GIF_SUPPORT_GRAPHIC_CONTROL_EXTENSION
if (gif_ptr->decode_status == GIF_D_STATUS_EXT_PTE) {
FX_Free(gif_ptr->gce_ptr);
gif_ptr->gce_ptr = NULL;
}
-#endif
-#endif
- if (_gif_read_data(gif_ptr, &data_size_ptr, 1) == NULL) {
+ if (gif_read_data(gif_ptr, &data_size_ptr, 1) == NULL) {
return 2;
}
while (*data_size_ptr != GIF_BLOCK_TERMINAL) {
- if (_gif_read_data(gif_ptr, &data_ptr, *data_size_ptr) == NULL ||
- _gif_read_data(gif_ptr, &data_size_ptr, 1) == NULL) {
+ if (gif_read_data(gif_ptr, &data_ptr, *data_size_ptr) == NULL ||
+ gif_read_data(gif_ptr, &data_size_ptr, 1) == NULL) {
gif_ptr->skip_size = skip_size_org;
return 2;
}
}
}
}
- _gif_save_decoding_status(gif_ptr, GIF_D_STATUS_SIG);
+ gif_save_decoding_status(gif_ptr, GIF_D_STATUS_SIG);
return 1;
}
-int32_t _gif_decode_image_info(gif_decompress_struct_p gif_ptr) {
+int32_t gif_decode_image_info(gif_decompress_struct_p gif_ptr) {
if (gif_ptr->width == 0 || gif_ptr->height == 0) {
- _gif_error(gif_ptr, "No Image Header Info");
+ gif_error(gif_ptr, "No Image Header Info");
return 0;
}
FX_DWORD skip_size_org = gif_ptr->skip_size;
ASSERT(sizeof(GifImageInfo) == 9);
GifImageInfo* gif_img_info_ptr = NULL;
- if (_gif_read_data(gif_ptr, (uint8_t**)&gif_img_info_ptr, 9) == NULL) {
+ if (gif_read_data(gif_ptr, (uint8_t**)&gif_img_info_ptr, 9) == NULL) {
return 2;
}
GifImage* gif_image_ptr = (GifImage*)FX_Alloc(uint8_t, sizeof(GifImage));
@@ -845,13 +762,13 @@ int32_t _gif_decode_image_info(gif_decompress_struct_p gif_ptr) {
gif_image_ptr->image_info_ptr =
(GifImageInfo*)FX_Alloc(uint8_t, sizeof(GifImageInfo));
gif_image_ptr->image_info_ptr->left =
- _GetWord_LSBFirst((uint8_t*)&gif_img_info_ptr->left);
+ GetWord_LSBFirst((uint8_t*)&gif_img_info_ptr->left);
gif_image_ptr->image_info_ptr->top =
- _GetWord_LSBFirst((uint8_t*)&gif_img_info_ptr->top);
+ GetWord_LSBFirst((uint8_t*)&gif_img_info_ptr->top);
gif_image_ptr->image_info_ptr->width =
- _GetWord_LSBFirst((uint8_t*)&gif_img_info_ptr->width);
+ GetWord_LSBFirst((uint8_t*)&gif_img_info_ptr->width);
gif_image_ptr->image_info_ptr->height =
- _GetWord_LSBFirst((uint8_t*)&gif_img_info_ptr->height);
+ GetWord_LSBFirst((uint8_t*)&gif_img_info_ptr->height);
gif_image_ptr->image_info_ptr->local_flag = gif_img_info_ptr->local_flag;
if (gif_image_ptr->image_info_ptr->left +
gif_image_ptr->image_info_ptr->width >
@@ -862,7 +779,7 @@ int32_t _gif_decode_image_info(gif_decompress_struct_p gif_ptr) {
FX_Free(gif_image_ptr->image_info_ptr);
FX_Free(gif_image_ptr->image_row_buf);
FX_Free(gif_image_ptr);
- _gif_error(gif_ptr, "Image Data Out Of LSD, The File May Be Corrupt");
+ gif_error(gif_ptr, "Image Data Out Of LSD, The File May Be Corrupt");
return 0;
}
GifLF* gif_img_info_lf_ptr = (GifLF*)&gif_img_info_ptr->local_flag;
@@ -870,7 +787,7 @@ int32_t _gif_decode_image_info(gif_decompress_struct_p gif_ptr) {
ASSERT(sizeof(GifPalette) == 3);
int32_t loc_pal_size = (2 << gif_img_info_lf_ptr->pal_bits) * 3;
uint8_t* loc_pal_ptr = NULL;
- if (_gif_read_data(gif_ptr, &loc_pal_ptr, loc_pal_size) == NULL) {
+ if (gif_read_data(gif_ptr, &loc_pal_ptr, loc_pal_size) == NULL) {
gif_ptr->skip_size = skip_size_org;
FX_Free(gif_image_ptr->image_info_ptr);
FX_Free(gif_image_ptr->image_row_buf);
@@ -878,14 +795,14 @@ int32_t _gif_decode_image_info(gif_decompress_struct_p gif_ptr) {
return 2;
}
gif_image_ptr->local_pal_ptr =
- (GifPalette*)gif_ptr->_gif_ask_buf_for_pal_fn(gif_ptr, loc_pal_size);
+ (GifPalette*)gif_ptr->gif_ask_buf_for_pal_fn(gif_ptr, loc_pal_size);
if (gif_image_ptr->local_pal_ptr) {
FXSYS_memcpy((uint8_t*)gif_image_ptr->local_pal_ptr, loc_pal_ptr,
loc_pal_size);
}
}
uint8_t* code_size_ptr = NULL;
- if (_gif_read_data(gif_ptr, &code_size_ptr, 1) == NULL) {
+ if (gif_read_data(gif_ptr, &code_size_ptr, 1) == NULL) {
gif_ptr->skip_size = skip_size_org;
FX_Free(gif_image_ptr->image_info_ptr);
FX_Free(gif_image_ptr->local_pal_ptr);
@@ -894,15 +811,15 @@ int32_t _gif_decode_image_info(gif_decompress_struct_p gif_ptr) {
return 2;
}
gif_image_ptr->image_code_size = *code_size_ptr;
- gif_ptr->_gif_record_current_position_fn(gif_ptr,
- &gif_image_ptr->image_data_pos);
+ gif_ptr->gif_record_current_position_fn(gif_ptr,
+ &gif_image_ptr->image_data_pos);
gif_image_ptr->image_data_pos += gif_ptr->skip_size;
- _gif_takeover_gce_ptr(gif_ptr, &gif_image_ptr->image_gce_ptr);
+ gif_takeover_gce_ptr(gif_ptr, &gif_image_ptr->image_gce_ptr);
gif_ptr->img_ptr_arr_ptr->Add(gif_image_ptr);
- _gif_save_decoding_status(gif_ptr, GIF_D_STATUS_IMG_DATA);
+ gif_save_decoding_status(gif_ptr, GIF_D_STATUS_IMG_DATA);
return 1;
}
-int32_t _gif_load_frame(gif_decompress_struct_p gif_ptr, int32_t frame_num) {
+int32_t gif_load_frame(gif_decompress_struct_p gif_ptr, int32_t frame_num) {
if (gif_ptr == NULL || frame_num < 0 ||
frame_num >= gif_ptr->img_ptr_arr_ptr->GetSize()) {
return 0;
@@ -926,7 +843,7 @@ int32_t _gif_load_frame(gif_decompress_struct_p gif_ptr, int32_t frame_num) {
: 0;
gif_ptr->avail_in = 0;
if (gif_img_gce_ptr == NULL) {
- FX_BOOL bRes = gif_ptr->_gif_get_record_position_fn(
+ FX_BOOL bRes = gif_ptr->gif_get_record_position_fn(
gif_ptr, gif_image_ptr->image_data_pos,
gif_image_ptr->image_info_ptr->left,
gif_image_ptr->image_info_ptr->top,
@@ -938,11 +855,11 @@ int32_t _gif_load_frame(gif_decompress_struct_p gif_ptr, int32_t frame_num) {
if (!bRes) {
FX_Free(gif_image_ptr->image_row_buf);
gif_image_ptr->image_row_buf = NULL;
- _gif_error(gif_ptr, "Error Read Record Position Data");
+ gif_error(gif_ptr, "Error Read Record Position Data");
return 0;
}
} else {
- FX_BOOL bRes = gif_ptr->_gif_get_record_position_fn(
+ FX_BOOL bRes = gif_ptr->gif_get_record_position_fn(
gif_ptr, gif_image_ptr->image_data_pos,
gif_image_ptr->image_info_ptr->left,
gif_image_ptr->image_info_ptr->top,
@@ -962,7 +879,7 @@ int32_t _gif_load_frame(gif_decompress_struct_p gif_ptr, int32_t frame_num) {
if (!bRes) {
FX_Free(gif_image_ptr->image_row_buf);
gif_image_ptr->image_row_buf = NULL;
- _gif_error(gif_ptr, "Error Read Record Position Data");
+ gif_error(gif_ptr, "Error Read Record Position Data");
return 0;
}
}
@@ -974,20 +891,20 @@ int32_t _gif_load_frame(gif_decompress_struct_p gif_ptr, int32_t frame_num) {
gif_ptr->img_row_avail_size = 0;
gif_ptr->img_pass_num = 0;
gif_image_ptr->image_row_num = 0;
- _gif_save_decoding_status(gif_ptr, GIF_D_STATUS_IMG_DATA);
+ gif_save_decoding_status(gif_ptr, GIF_D_STATUS_IMG_DATA);
}
CGifLZWDecoder* img_decoder_ptr = gif_ptr->img_decoder_ptr;
if (gif_ptr->decode_status == GIF_D_STATUS_IMG_DATA) {
- if (_gif_read_data(gif_ptr, &data_size_ptr, 1) == NULL) {
+ if (gif_read_data(gif_ptr, &data_size_ptr, 1) == NULL) {
return 2;
}
if (*data_size_ptr != GIF_BLOCK_TERMINAL) {
- if (_gif_read_data(gif_ptr, &data_ptr, *data_size_ptr) == NULL) {
+ if (gif_read_data(gif_ptr, &data_ptr, *data_size_ptr) == NULL) {
gif_ptr->skip_size = skip_size_org;
return 2;
}
img_decoder_ptr->Input(data_ptr, *data_size_ptr);
- _gif_save_decoding_status(gif_ptr, GIF_D_STATUS_IMG_DATA);
+ gif_save_decoding_status(gif_ptr, GIF_D_STATUS_IMG_DATA);
gif_ptr->img_row_offset += gif_ptr->img_row_avail_size;
gif_ptr->img_row_avail_size = gif_img_row_bytes - gif_ptr->img_row_offset;
int32_t ret = img_decoder_ptr->Decode(
@@ -996,32 +913,32 @@ int32_t _gif_load_frame(gif_decompress_struct_p gif_ptr, int32_t frame_num) {
if (ret == 0) {
FX_Free(gif_image_ptr->image_row_buf);
gif_image_ptr->image_row_buf = NULL;
- _gif_save_decoding_status(gif_ptr, GIF_D_STATUS_TAIL);
- _gif_error(gif_ptr, "Decode Image Data Error");
+ gif_save_decoding_status(gif_ptr, GIF_D_STATUS_TAIL);
+ gif_error(gif_ptr, "Decode Image Data Error");
return 0;
}
while (ret != 0) {
if (ret == 1) {
- gif_ptr->_gif_get_row_fn(gif_ptr, gif_image_ptr->image_row_num,
- gif_image_ptr->image_row_buf);
+ gif_ptr->gif_get_row_fn(gif_ptr, gif_image_ptr->image_row_num,
+ gif_image_ptr->image_row_buf);
FX_Free(gif_image_ptr->image_row_buf);
gif_image_ptr->image_row_buf = NULL;
- _gif_save_decoding_status(gif_ptr, GIF_D_STATUS_TAIL);
+ gif_save_decoding_status(gif_ptr, GIF_D_STATUS_TAIL);
return 1;
}
if (ret == 2) {
ASSERT(img_decoder_ptr->GetAvailInput() == 0);
skip_size_org = gif_ptr->skip_size;
- if (_gif_read_data(gif_ptr, &data_size_ptr, 1) == NULL) {
+ if (gif_read_data(gif_ptr, &data_size_ptr, 1) == NULL) {
return 2;
}
if (*data_size_ptr != GIF_BLOCK_TERMINAL) {
- if (_gif_read_data(gif_ptr, &data_ptr, *data_size_ptr) == NULL) {
+ if (gif_read_data(gif_ptr, &data_ptr, *data_size_ptr) == NULL) {
gif_ptr->skip_size = skip_size_org;
return 2;
}
img_decoder_ptr->Input(data_ptr, *data_size_ptr);
- _gif_save_decoding_status(gif_ptr, GIF_D_STATUS_IMG_DATA);
+ gif_save_decoding_status(gif_ptr, GIF_D_STATUS_IMG_DATA);
gif_ptr->img_row_offset += gif_ptr->img_row_avail_size;
gif_ptr->img_row_avail_size =
gif_img_row_bytes - gif_ptr->img_row_offset;
@@ -1032,8 +949,8 @@ int32_t _gif_load_frame(gif_decompress_struct_p gif_ptr, int32_t frame_num) {
}
if (ret == 3) {
if (((GifLF*)&gif_image_ptr->image_info_ptr->local_flag)->interlace) {
- gif_ptr->_gif_get_row_fn(gif_ptr, gif_image_ptr->image_row_num,
- gif_image_ptr->image_row_buf);
+ gif_ptr->gif_get_row_fn(gif_ptr, gif_image_ptr->image_row_num,
+ gif_image_ptr->image_row_buf);
gif_image_ptr->image_row_num +=
s_gif_interlace_step[gif_ptr->img_pass_num];
if (gif_image_ptr->image_row_num >=
@@ -1043,8 +960,8 @@ int32_t _gif_load_frame(gif_decompress_struct_p gif_ptr, int32_t frame_num) {
s_gif_interlace_step[gif_ptr->img_pass_num] / 2;
}
} else {
- gif_ptr->_gif_get_row_fn(gif_ptr, gif_image_ptr->image_row_num++,
- gif_image_ptr->image_row_buf);
+ gif_ptr->gif_get_row_fn(gif_ptr, gif_image_ptr->image_row_num++,
+ gif_image_ptr->image_row_buf);
}
gif_ptr->img_row_offset = 0;
gif_ptr->img_row_avail_size = gif_img_row_bytes;
@@ -1055,27 +972,26 @@ int32_t _gif_load_frame(gif_decompress_struct_p gif_ptr, int32_t frame_num) {
if (ret == 0) {
FX_Free(gif_image_ptr->image_row_buf);
gif_image_ptr->image_row_buf = NULL;
- _gif_save_decoding_status(gif_ptr, GIF_D_STATUS_TAIL);
- _gif_error(gif_ptr, "Decode Image Data Error");
+ gif_save_decoding_status(gif_ptr, GIF_D_STATUS_TAIL);
+ gif_error(gif_ptr, "Decode Image Data Error");
return 0;
}
}
}
- _gif_save_decoding_status(gif_ptr, GIF_D_STATUS_TAIL);
+ gif_save_decoding_status(gif_ptr, GIF_D_STATUS_TAIL);
}
- _gif_error(gif_ptr, "Decode Image Data Error");
+ gif_error(gif_ptr, "Decode Image Data Error");
return 0;
}
-void _gif_save_decoding_status(gif_decompress_struct_p gif_ptr,
- int32_t status) {
+void gif_save_decoding_status(gif_decompress_struct_p gif_ptr, int32_t status) {
gif_ptr->decode_status = status;
gif_ptr->next_in += gif_ptr->skip_size;
gif_ptr->avail_in -= gif_ptr->skip_size;
gif_ptr->skip_size = 0;
}
-uint8_t* _gif_read_data(gif_decompress_struct_p gif_ptr,
- uint8_t** des_buf_pp,
- FX_DWORD data_size) {
+uint8_t* gif_read_data(gif_decompress_struct_p gif_ptr,
+ uint8_t** des_buf_pp,
+ FX_DWORD data_size) {
if (gif_ptr == NULL || gif_ptr->avail_in < gif_ptr->skip_size + data_size) {
return NULL;
}
@@ -1083,15 +999,15 @@ uint8_t* _gif_read_data(gif_decompress_struct_p gif_ptr,
gif_ptr->skip_size += data_size;
return *des_buf_pp;
}
-void _gif_input_buffer(gif_decompress_struct_p gif_ptr,
- uint8_t* src_buf,
- FX_DWORD src_size) {
+void gif_input_buffer(gif_decompress_struct_p gif_ptr,
+ uint8_t* src_buf,
+ FX_DWORD src_size) {
gif_ptr->next_in = src_buf;
gif_ptr->avail_in = src_size;
gif_ptr->skip_size = 0;
}
-FX_DWORD _gif_get_avail_input(gif_decompress_struct_p gif_ptr,
- uint8_t** avial_buf_ptr) {
+FX_DWORD gif_get_avail_input(gif_decompress_struct_p gif_ptr,
+ uint8_t** avial_buf_ptr) {
if (avial_buf_ptr) {
*avial_buf_ptr = NULL;
if (gif_ptr->avail_in > 0) {
@@ -1100,12 +1016,12 @@ FX_DWORD _gif_get_avail_input(gif_decompress_struct_p gif_ptr,
}
return gif_ptr->avail_in;
}
-int32_t _gif_get_frame_num(gif_decompress_struct_p gif_ptr) {
+int32_t gif_get_frame_num(gif_decompress_struct_p gif_ptr) {
return gif_ptr->img_ptr_arr_ptr->GetSize();
}
-static FX_BOOL _gif_write_header(gif_compress_struct_p gif_ptr,
- uint8_t*& dst_buf,
- FX_DWORD& dst_len) {
+static FX_BOOL gif_write_header(gif_compress_struct_p gif_ptr,
+ uint8_t*& dst_buf,
+ FX_DWORD& dst_len) {
if (gif_ptr->cur_offset) {
return TRUE;
}
@@ -1117,16 +1033,16 @@ static FX_BOOL _gif_write_header(gif_compress_struct_p gif_ptr,
FXSYS_memset(dst_buf, 0, dst_len);
FXSYS_memcpy(dst_buf, gif_ptr->header_ptr, sizeof(GifHeader));
gif_ptr->cur_offset += sizeof(GifHeader);
- _SetWord_LSBFirst(dst_buf + gif_ptr->cur_offset, gif_ptr->lsd_ptr->width);
+ SetWord_LSBFirst(dst_buf + gif_ptr->cur_offset, gif_ptr->lsd_ptr->width);
gif_ptr->cur_offset += 2;
- _SetWord_LSBFirst(dst_buf + gif_ptr->cur_offset, gif_ptr->lsd_ptr->height);
+ SetWord_LSBFirst(dst_buf + gif_ptr->cur_offset, gif_ptr->lsd_ptr->height);
gif_ptr->cur_offset += 2;
dst_buf[gif_ptr->cur_offset++] = gif_ptr->lsd_ptr->global_flag;
dst_buf[gif_ptr->cur_offset++] = gif_ptr->lsd_ptr->bc_index;
dst_buf[gif_ptr->cur_offset++] = gif_ptr->lsd_ptr->pixel_aspect;
if (gif_ptr->global_pal) {
FX_WORD size = sizeof(GifPalette) * gif_ptr->gpal_num;
- if (!_gif_grow_buf(dst_buf, dst_len, gif_ptr->cur_offset + size)) {
+ if (!gif_grow_buf(dst_buf, dst_len, gif_ptr->cur_offset + size)) {
return FALSE;
}
FXSYS_memcpy(&dst_buf[gif_ptr->cur_offset], gif_ptr->global_pal, size);
@@ -1165,11 +1081,11 @@ void interlace_buf(const uint8_t* buf, FX_DWORD pitch, FX_DWORD height) {
}
}
}
-static void _gif_write_block_data(const uint8_t* src_buf,
- FX_DWORD src_len,
- uint8_t*& dst_buf,
- FX_DWORD& dst_len,
- FX_DWORD& dst_offset) {
+static void gif_write_block_data(const uint8_t* src_buf,
+ FX_DWORD src_len,
+ uint8_t*& dst_buf,
+ FX_DWORD& dst_len,
+ FX_DWORD& dst_offset) {
FX_DWORD src_offset = 0;
while (src_len > GIF_DATA_BLOCK) {
dst_buf[dst_offset++] = GIF_DATA_BLOCK;
@@ -1182,13 +1098,12 @@ static void _gif_write_block_data(const uint8_t* src_buf,
FXSYS_memcpy(&dst_buf[dst_offset], &src_buf[src_offset], src_len);
dst_offset += src_len;
}
-static FX_BOOL _gif_write_data(gif_compress_struct_p gif_ptr,
- uint8_t*& dst_buf,
- FX_DWORD& dst_len) {
- if (!_gif_grow_buf(dst_buf, dst_len, gif_ptr->cur_offset + GIF_DATA_BLOCK)) {
+static FX_BOOL gif_write_data(gif_compress_struct_p gif_ptr,
+ uint8_t*& dst_buf,
+ FX_DWORD& dst_len) {
+ if (!gif_grow_buf(dst_buf, dst_len, gif_ptr->cur_offset + GIF_DATA_BLOCK)) {
return FALSE;
}
-#ifdef GIF_SUPPORT_GRAPHIC_CONTROL_EXTENSION
if (FXSYS_memcmp(gif_ptr->header_ptr->version, "89a", 3) == 0) {
dst_buf[gif_ptr->cur_offset++] = GIF_SIG_EXTENSION;
dst_buf[gif_ptr->cur_offset++] = GIF_BLOCK_GCE;
@@ -1197,32 +1112,30 @@ static FX_BOOL _gif_write_data(gif_compress_struct_p gif_ptr,
gif_ptr->gce_ptr->gce_flag = 0;
dst_buf[gif_ptr->cur_offset++] = gif_ptr->gce_ptr->gce_flag;
gif_ptr->gce_ptr->delay_time = 10;
- _SetWord_LSBFirst(dst_buf + gif_ptr->cur_offset,
- gif_ptr->gce_ptr->delay_time);
+ SetWord_LSBFirst(dst_buf + gif_ptr->cur_offset,
+ gif_ptr->gce_ptr->delay_time);
gif_ptr->cur_offset += 2;
gif_ptr->gce_ptr->trans_index = 0;
dst_buf[gif_ptr->cur_offset++] = gif_ptr->gce_ptr->trans_index;
dst_buf[gif_ptr->cur_offset++] = 0;
}
-#endif
dst_buf[gif_ptr->cur_offset++] = GIF_SIG_IMAGE;
- _SetWord_LSBFirst(dst_buf + gif_ptr->cur_offset,
- gif_ptr->image_info_ptr->left);
+ SetWord_LSBFirst(dst_buf + gif_ptr->cur_offset,
+ gif_ptr->image_info_ptr->left);
gif_ptr->cur_offset += 2;
- _SetWord_LSBFirst(dst_buf + gif_ptr->cur_offset,
- gif_ptr->image_info_ptr->top);
+ SetWord_LSBFirst(dst_buf + gif_ptr->cur_offset, gif_ptr->image_info_ptr->top);
gif_ptr->cur_offset += 2;
- _SetWord_LSBFirst(dst_buf + gif_ptr->cur_offset,
- gif_ptr->image_info_ptr->width);
+ SetWord_LSBFirst(dst_buf + gif_ptr->cur_offset,
+ gif_ptr->image_info_ptr->width);
gif_ptr->cur_offset += 2;
- _SetWord_LSBFirst(dst_buf + gif_ptr->cur_offset,
- gif_ptr->image_info_ptr->height);
+ SetWord_LSBFirst(dst_buf + gif_ptr->cur_offset,
+ gif_ptr->image_info_ptr->height);
gif_ptr->cur_offset += 2;
GifLF& lf = (GifLF&)gif_ptr->image_info_ptr->local_flag;
dst_buf[gif_ptr->cur_offset++] = gif_ptr->image_info_ptr->local_flag;
if (gif_ptr->local_pal) {
FX_DWORD pal_size = sizeof(GifPalette) * gif_ptr->lpal_num;
- if (!_gif_grow_buf(dst_buf, dst_len, pal_size + gif_ptr->cur_offset)) {
+ if (!gif_grow_buf(dst_buf, dst_len, pal_size + gif_ptr->cur_offset)) {
return FALSE;
}
FXSYS_memcpy(&dst_buf[gif_ptr->cur_offset], gif_ptr->local_pal, pal_size);
@@ -1250,75 +1163,52 @@ static FX_BOOL _gif_write_data(gif_compress_struct_p gif_ptr,
}
gif_ptr->img_encoder_ptr->Finish(dst_buf, dst_len, gif_ptr->cur_offset);
dst_buf[gif_ptr->cur_offset++] = 0;
-#ifdef GIF_SUPPORT_COMMENT_EXTENSION
if (FXSYS_memcmp(gif_ptr->header_ptr->version, "89a", 3) == 0 &&
gif_ptr->cmt_data_ptr) {
dst_buf[gif_ptr->cur_offset++] = GIF_SIG_EXTENSION;
dst_buf[gif_ptr->cur_offset++] = GIF_BLOCK_CE;
- _gif_write_block_data(gif_ptr->cmt_data_ptr, gif_ptr->cmt_data_len, dst_buf,
- dst_len, gif_ptr->cur_offset);
+ gif_write_block_data(gif_ptr->cmt_data_ptr, gif_ptr->cmt_data_len, dst_buf,
+ dst_len, gif_ptr->cur_offset);
dst_buf[gif_ptr->cur_offset++] = 0;
}
-#endif
-#ifdef GIF_SUPPORT_PLAIN_TEXT_EXTENSION
if (FXSYS_memcmp(gif_ptr->header_ptr->version, "89a", 3) == 0 &&
gif_ptr->pte_data_ptr) {
dst_buf[gif_ptr->cur_offset++] = GIF_SIG_EXTENSION;
dst_buf[gif_ptr->cur_offset++] = GIF_BLOCK_PTE;
dst_buf[gif_ptr->cur_offset++] = gif_ptr->pte_ptr->block_size;
- _SetWord_LSBFirst(dst_buf + gif_ptr->cur_offset,
- gif_ptr->pte_ptr->grid_left);
+ SetWord_LSBFirst(dst_buf + gif_ptr->cur_offset,
+ gif_ptr->pte_ptr->grid_left);
gif_ptr->cur_offset += 2;
- _SetWord_LSBFirst(dst_buf + gif_ptr->cur_offset,
- gif_ptr->pte_ptr->grid_top);
+ SetWord_LSBFirst(dst_buf + gif_ptr->cur_offset, gif_ptr->pte_ptr->grid_top);
gif_ptr->cur_offset += 2;
- _SetWord_LSBFirst(dst_buf + gif_ptr->cur_offset,
- gif_ptr->pte_ptr->grid_width);
+ SetWord_LSBFirst(dst_buf + gif_ptr->cur_offset,
+ gif_ptr->pte_ptr->grid_width);
gif_ptr->cur_offset += 2;
- _SetWord_LSBFirst(dst_buf + gif_ptr->cur_offset,
- gif_ptr->pte_ptr->grid_height);
+ SetWord_LSBFirst(dst_buf + gif_ptr->cur_offset,
+ gif_ptr->pte_ptr->grid_height);
gif_ptr->cur_offset += 2;
- _SetWord_LSBFirst(dst_buf + gif_ptr->cur_offset,
- gif_ptr->pte_ptr->char_width);
+ SetWord_LSBFirst(dst_buf + gif_ptr->cur_offset,
+ gif_ptr->pte_ptr->char_width);
gif_ptr->cur_offset += 2;
- _SetWord_LSBFirst(dst_buf + gif_ptr->cur_offset,
- gif_ptr->pte_ptr->char_height);
+ SetWord_LSBFirst(dst_buf + gif_ptr->cur_offset,
+ gif_ptr->pte_ptr->char_height);
gif_ptr->cur_offset += 2;
- _SetWord_LSBFirst(dst_buf + gif_ptr->cur_offset,
- gif_ptr->pte_ptr->fc_index);
+ SetWord_LSBFirst(dst_buf + gif_ptr->cur_offset, gif_ptr->pte_ptr->fc_index);
gif_ptr->cur_offset += 2;
- _SetWord_LSBFirst(dst_buf + gif_ptr->cur_offset,
- gif_ptr->pte_ptr->bc_index);
+ SetWord_LSBFirst(dst_buf + gif_ptr->cur_offset, gif_ptr->pte_ptr->bc_index);
gif_ptr->cur_offset += 2;
- _gif_write_block_data(gif_ptr->pte_data_ptr, gif_ptr->pte_data_len, dst_buf,
- dst_len, gif_ptr->cur_offset);
+ gif_write_block_data(gif_ptr->pte_data_ptr, gif_ptr->pte_data_len, dst_buf,
+ dst_len, gif_ptr->cur_offset);
gif_ptr->cur_offset += gif_ptr->pte_data_len;
dst_buf[gif_ptr->cur_offset++] = 0;
}
-#endif
-#ifdef GIF_SUPPORT_APPLICATION_EXTENSION
- if (FXSYS_memcmp(gif_ptr->header_ptr->version, "89a", 3) == 0 &&
- gif_ptr->app_data) {
- dst_buf[gif_ptr->cur_offset++] = GIF_SIG_EXTENSION;
- dst_buf[gif_ptr->cur_offset++] = GIF_BLOCK_AE;
- dst_buf[gif_ptr->cur_offset++] = 11;
- FXSYS_memcpy(&dst_buf[gif_ptr->cur_offset], gif_ptr->app_identify, 8);
- gif_ptr->cur_offset += 8;
- FXSYS_memcpy(&dst_buf[gif_ptr->cur_offset], gif_ptr->app_authentication, 8);
- gif_ptr->cur_offset += 3;
- FXSYS_memcpy(&dst_buf[gif_ptr->cur_offset], gif_ptr->app_data,
- gif_ptr->app_data_size);
- gif_ptr->cur_offset += gif_ptr->app_data_size;
- dst_buf[gif_ptr->cur_offset++] = 0;
- }
-#endif
dst_buf[gif_ptr->cur_offset++] = GIF_SIG_TRAILER;
return TRUE;
}
-FX_BOOL _gif_encode(gif_compress_struct_p gif_ptr,
- uint8_t*& dst_buf,
- FX_DWORD& dst_len) {
- if (!_gif_write_header(gif_ptr, dst_buf, dst_len)) {
+FX_BOOL gif_encode(gif_compress_struct_p gif_ptr,
+ uint8_t*& dst_buf,
+ FX_DWORD& dst_len) {
+ if (!gif_write_header(gif_ptr, dst_buf, dst_len)) {
return FALSE;
}
FX_DWORD cur_offset = gif_ptr->cur_offset;
@@ -1326,7 +1216,7 @@ FX_BOOL _gif_encode(gif_compress_struct_p gif_ptr,
if (gif_ptr->frames) {
gif_ptr->cur_offset--;
}
- if (!_gif_write_data(gif_ptr, dst_buf, dst_len)) {
+ if (!gif_write_data(gif_ptr, dst_buf, dst_len)) {
gif_ptr->cur_offset = cur_offset;
res = FALSE;
}
diff --git a/core/src/fxcodec/lgif/fx_gif.h b/core/src/fxcodec/lgif/fx_gif.h
index 19e21751d6..32300a50e5 100644
--- a/core/src/fxcodec/lgif/fx_gif.h
+++ b/core/src/fxcodec/lgif/fx_gif.h
@@ -11,17 +11,6 @@
#include "core/include/fxcrt/fx_basic.h"
-extern FX_WORD _GetWord_LSBFirst(uint8_t* p);
-extern void _SetWord_LSBFirst(uint8_t* p, FX_WORD v);
-extern void _BpcConvert(const uint8_t* src_buf,
- FX_DWORD src_len,
- int32_t src_bpc,
- int32_t dst_bpc,
- uint8_t*& dst_buf,
- FX_DWORD& dst_len);
-#define GIF_SUPPORT_COMMENT_EXTENSION
-#define GIF_SUPPORT_GRAPHIC_CONTROL_EXTENSION
-#define GIF_SUPPORT_PLAIN_TEXT_EXTENSION
#define GIF_SIGNATURE "GIF"
#define GIF_SIG_EXTENSION 0x21
#define GIF_SIG_IMAGE 0x2C
@@ -208,12 +197,11 @@ class CGifLZWEncoder {
typedef struct tag_gif_decompress_struct gif_decompress_struct;
typedef gif_decompress_struct* gif_decompress_struct_p;
typedef gif_decompress_struct_p* gif_decompress_struct_pp;
-static int32_t s_gif_interlace_step[4] = {8, 8, 4, 2};
+static const int32_t s_gif_interlace_step[4] = {8, 8, 4, 2};
struct tag_gif_decompress_struct {
jmp_buf jmpbuf;
FX_CHAR* err_ptr;
- void (*_gif_error_fn)(gif_decompress_struct_p gif_ptr,
- const FX_CHAR* err_msg);
+ void (*gif_error_fn)(gif_decompress_struct_p gif_ptr, const FX_CHAR* err_msg);
void* context_ptr;
int width;
int height;
@@ -229,38 +217,26 @@ struct tag_gif_decompress_struct {
FX_DWORD img_row_avail_size;
uint8_t img_pass_num;
CFX_ArrayTemplate<GifImage*>* img_ptr_arr_ptr;
- uint8_t* (*_gif_ask_buf_for_pal_fn)(gif_decompress_struct_p gif_ptr,
- int32_t pal_size);
+ uint8_t* (*gif_ask_buf_for_pal_fn)(gif_decompress_struct_p gif_ptr,
+ int32_t pal_size);
uint8_t* next_in;
FX_DWORD avail_in;
int32_t decode_status;
FX_DWORD skip_size;
- void (*_gif_record_current_position_fn)(gif_decompress_struct_p gif_ptr,
- FX_DWORD* cur_pos_ptr);
- void (*_gif_get_row_fn)(gif_decompress_struct_p gif_ptr,
- int32_t row_num,
- uint8_t* row_buf);
- FX_BOOL (*_gif_get_record_position_fn)(gif_decompress_struct_p gif_ptr,
+ void (*gif_record_current_position_fn)(gif_decompress_struct_p gif_ptr,
+ FX_DWORD* cur_pos_ptr);
+ void (*gif_get_row_fn)(gif_decompress_struct_p gif_ptr,
+ int32_t row_num,
+ uint8_t* row_buf);
+ FX_BOOL (*gif_get_record_position_fn)(gif_decompress_struct_p gif_ptr,
FX_DWORD cur_pos,
int32_t left, int32_t top, int32_t width, int32_t height,
int32_t pal_num, void* pal_ptr,
int32_t delay_time, FX_BOOL user_input,
int32_t trans_index, int32_t disposal_method, FX_BOOL interlace);
-#ifdef GIF_SUPPORT_APPLICATION_EXTENSION
- uint8_t app_identify[8];
- uint8_t app_authentication[3];
- FX_DWORD app_data_size;
- uint8_t* app_data;
-#endif
-#ifdef GIF_SUPPORT_COMMENT_EXTENSION
CFX_ByteString* cmt_data_ptr;
-#endif
-#ifdef GIF_SUPPORT_GRAPHIC_CONTROL_EXTENSION
GifGCE* gce_ptr;
-#endif
-#ifdef GIF_SUPPORT_PLAIN_TEXT_EXTENSION
CFX_ArrayTemplate<GifPlainText*>* pt_ptr_arr_ptr;
-#endif
};
typedef struct tag_gif_compress_struct gif_compress_struct;
typedef gif_compress_struct* gif_compress_struct_p;
@@ -280,55 +256,41 @@ struct tag_gif_compress_struct {
FX_WORD lpal_num;
GifImageInfo* image_info_ptr;
CGifLZWEncoder* img_encoder_ptr;
-#ifdef GIF_SUPPORT_APPLICATION_EXTENSION
- uint8_t app_identify[8];
- uint8_t app_authentication[3];
- FX_DWORD app_data_size;
- uint8_t* app_data;
-#endif
-#ifdef GIF_SUPPORT_COMMENT_EXTENSION
uint8_t* cmt_data_ptr;
FX_DWORD cmt_data_len;
-#endif
-
-#ifdef GIF_SUPPORT_GRAPHIC_CONTROL_EXTENSION
GifGCE* gce_ptr;
-#endif
-
-#ifdef GIF_SUPPORT_PLAIN_TEXT_EXTENSION
GifPTE* pte_ptr;
const uint8_t* pte_data_ptr;
FX_DWORD pte_data_len;
-#endif
};
-void _gif_error(gif_decompress_struct_p gif_ptr, const FX_CHAR* err_msg);
-void _gif_warn(gif_decompress_struct_p gif_ptr, const FX_CHAR* err_msg);
-gif_decompress_struct_p _gif_create_decompress();
-void _gif_destroy_decompress(gif_decompress_struct_pp gif_ptr_ptr);
-gif_compress_struct_p _gif_create_compress();
-void _gif_destroy_compress(gif_compress_struct_pp gif_ptr_ptr);
-int32_t _gif_read_header(gif_decompress_struct_p gif_ptr);
-int32_t _gif_get_frame(gif_decompress_struct_p gif_ptr);
-int32_t _gif_get_frame_num(gif_decompress_struct_p gif_ptr);
-int32_t _gif_decode_extension(gif_decompress_struct_p gif_ptr);
-int32_t _gif_decode_image_info(gif_decompress_struct_p gif_ptr);
-void _gif_takeover_gce_ptr(gif_decompress_struct_p gif_ptr,
- GifGCE** gce_ptr_ptr);
-int32_t _gif_load_frame(gif_decompress_struct_p gif_ptr, int32_t frame_num);
-uint8_t* _gif_read_data(gif_decompress_struct_p gif_ptr,
- uint8_t** des_buf_pp,
- FX_DWORD data_size);
-void _gif_save_decoding_status(gif_decompress_struct_p gif_ptr, int32_t status);
-void _gif_input_buffer(gif_decompress_struct_p gif_ptr,
- uint8_t* src_buf,
- FX_DWORD src_size);
-FX_DWORD _gif_get_avail_input(gif_decompress_struct_p gif_ptr,
- uint8_t** avial_buf_ptr);
+void gif_error(gif_decompress_struct_p gif_ptr, const FX_CHAR* err_msg);
+void gif_warn(gif_decompress_struct_p gif_ptr, const FX_CHAR* err_msg);
+gif_decompress_struct_p gif_create_decompress();
+void gif_destroy_decompress(gif_decompress_struct_pp gif_ptr_ptr);
+gif_compress_struct_p gif_create_compress();
+void gif_destroy_compress(gif_compress_struct_pp gif_ptr_ptr);
+int32_t gif_read_header(gif_decompress_struct_p gif_ptr);
+int32_t gif_get_frame(gif_decompress_struct_p gif_ptr);
+int32_t gif_get_frame_num(gif_decompress_struct_p gif_ptr);
+int32_t gif_decode_extension(gif_decompress_struct_p gif_ptr);
+int32_t gif_decode_image_info(gif_decompress_struct_p gif_ptr);
+void gif_takeover_gce_ptr(gif_decompress_struct_p gif_ptr,
+ GifGCE** gce_ptr_ptr);
+int32_t gif_load_frame(gif_decompress_struct_p gif_ptr, int32_t frame_num);
+uint8_t* gif_read_data(gif_decompress_struct_p gif_ptr,
+ uint8_t** des_buf_pp,
+ FX_DWORD data_size);
+void gif_save_decoding_status(gif_decompress_struct_p gif_ptr, int32_t status);
+void gif_input_buffer(gif_decompress_struct_p gif_ptr,
+ uint8_t* src_buf,
+ FX_DWORD src_size);
+FX_DWORD gif_get_avail_input(gif_decompress_struct_p gif_ptr,
+ uint8_t** avial_buf_ptr);
void interlace_buf(const uint8_t* buf, FX_DWORD width, FX_DWORD height);
-FX_BOOL _gif_encode(gif_compress_struct_p gif_ptr,
- uint8_t*& dst_buf,
- FX_DWORD& dst_len);
+FX_BOOL gif_encode(gif_compress_struct_p gif_ptr,
+ uint8_t*& dst_buf,
+ FX_DWORD& dst_len);
#endif // CORE_SRC_FXCODEC_LGIF_FX_GIF_H_
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-03 02:52:41 +0000