diff options
| author | Nico Weber <thakis@chromium.org> | 2015-08-04 13:00:21 -0700 |
|---|---|---|
| committer | Nico Weber <thakis@chromium.org> | 2015-08-04 13:00:21 -0700 |
| commit | 9d8ec5a6e37e8d1d4d4edca9040de234e2d4728f (patch) | |
| tree | c97037f398d714665aefccb6eb54d0969ad7030c /core/src/fxcodec/lgif | |
| parent | 780cee82236d1b3b0f9b01a22424e4b8ec9a6f12 (diff) | |
| download | pdfium-9d8ec5a6e37e8d1d4d4edca9040de234e2d4728f.tar.xz | |
XFA: clang-format all pdfium code.
No behavior change.
Generated by:
find . -name '*.cpp' -o -name '*.h' | \
grep -E -v 'third_party|thirdparties|lpng_v163|tiff_v403' | \
xargs ../../buildtools/mac/clang-format -i
Then manually merged https://codereview.chromium.org/1269223002/
See thread "tabs vs spaces" on pdfium@googlegroups.com for discussion.
BUG=none
Diffstat (limited to 'core/src/fxcodec/lgif')
| -rw-r--r-- | core/src/fxcodec/lgif/fx_gif.cpp | 2497 | ||||
| -rw-r--r-- | core/src/fxcodec/lgif/fx_gif.h | 450 |
2 files changed, 1524 insertions, 1423 deletions
diff --git a/core/src/fxcodec/lgif/fx_gif.cpp b/core/src/fxcodec/lgif/fx_gif.cpp index 6d22f58c16..b07ebb3bc9 100644 --- a/core/src/fxcodec/lgif/fx_gif.cpp +++ b/core/src/fxcodec/lgif/fx_gif.cpp @@ -5,1345 +5,1422 @@ // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
#include "fx_gif.h"
-void CGifLZWDecoder::Input(uint8_t* src_buf, FX_DWORD src_size)
-{
- next_in = src_buf;
- avail_in = src_size;
+void CGifLZWDecoder::Input(uint8_t* src_buf, FX_DWORD src_size) {
+ next_in = src_buf;
+ avail_in = src_size;
}
-FX_DWORD CGifLZWDecoder::GetAvailInput()
-{
- return avail_in;
+FX_DWORD CGifLZWDecoder::GetAvailInput() {
+ return avail_in;
}
-void CGifLZWDecoder::InitTable(uint8_t code_len)
-{
- code_size = code_len;
- code_clear = 1 << code_size;
- code_end = code_clear + 1;
- bits_left = 0;
- code_store = 0;
- next_in = NULL;
- avail_in = 0;
- stack_size = 0;
- code_first = 0;
- ClearTable();
+void CGifLZWDecoder::InitTable(uint8_t code_len) {
+ code_size = code_len;
+ code_clear = 1 << code_size;
+ code_end = code_clear + 1;
+ bits_left = 0;
+ code_store = 0;
+ next_in = NULL;
+ avail_in = 0;
+ stack_size = 0;
+ code_first = 0;
+ ClearTable();
}
-void CGifLZWDecoder::ClearTable()
-{
- code_size_cur = code_size + 1;
- code_next = code_end + 1;
- code_old = (FX_WORD) - 1;
- FXSYS_memset(code_table, 0, sizeof(tag_Table)*GIF_MAX_LZW_CODE);
- FXSYS_memset(stack, 0, GIF_MAX_LZW_CODE);
- for (FX_WORD i = 0; i < code_clear; i++) {
- code_table[i].suffix = (uint8_t)i;
- }
+void CGifLZWDecoder::ClearTable() {
+ code_size_cur = code_size + 1;
+ code_next = code_end + 1;
+ code_old = (FX_WORD)-1;
+ FXSYS_memset(code_table, 0, sizeof(tag_Table) * GIF_MAX_LZW_CODE);
+ FXSYS_memset(stack, 0, GIF_MAX_LZW_CODE);
+ for (FX_WORD i = 0; i < code_clear; i++) {
+ code_table[i].suffix = (uint8_t)i;
+ }
}
-void CGifLZWDecoder::DecodeString(FX_WORD code)
-{
- stack_size = 0;
- while (TRUE) {
- ASSERT(code <= code_next);
- if(code < code_clear || code > code_next) {
- break;
- }
- stack[GIF_MAX_LZW_CODE - 1 - stack_size++] = code_table[code].suffix;
- code = code_table[code].prefix;
- }
- stack[GIF_MAX_LZW_CODE - 1 - stack_size++] = (uint8_t)code;
- code_first = (uint8_t)code;
+void CGifLZWDecoder::DecodeString(FX_WORD code) {
+ stack_size = 0;
+ while (TRUE) {
+ ASSERT(code <= code_next);
+ if (code < code_clear || code > code_next) {
+ break;
+ }
+ stack[GIF_MAX_LZW_CODE - 1 - stack_size++] = code_table[code].suffix;
+ code = code_table[code].prefix;
+ }
+ stack[GIF_MAX_LZW_CODE - 1 - stack_size++] = (uint8_t)code;
+ code_first = (uint8_t)code;
}
-void CGifLZWDecoder::AddCode(FX_WORD prefix_code, uint8_t append_char)
-{
- if(code_next == GIF_MAX_LZW_CODE) {
- return;
- }
- code_table[code_next].prefix = prefix_code;
- code_table[code_next].suffix = append_char;
- if(++code_next < GIF_MAX_LZW_CODE) {
- if(code_next >> code_size_cur) {
- code_size_cur++;
- }
- }
+void CGifLZWDecoder::AddCode(FX_WORD prefix_code, uint8_t append_char) {
+ if (code_next == GIF_MAX_LZW_CODE) {
+ return;
+ }
+ code_table[code_next].prefix = prefix_code;
+ code_table[code_next].suffix = append_char;
+ if (++code_next < GIF_MAX_LZW_CODE) {
+ if (code_next >> code_size_cur) {
+ code_size_cur++;
+ }
+ }
}
-int32_t CGifLZWDecoder::Decode(uint8_t* des_buf, FX_DWORD& des_size)
-{
- if(des_size == 0) {
- return 3;
- }
- FX_DWORD i = 0;
- if(stack_size != 0) {
- if(des_size < stack_size) {
- FXSYS_memcpy(des_buf, &stack[GIF_MAX_LZW_CODE - stack_size], des_size);
- stack_size -= (FX_WORD)des_size;
- return 3;
+int32_t CGifLZWDecoder::Decode(uint8_t* des_buf, FX_DWORD& des_size) {
+ if (des_size == 0) {
+ return 3;
+ }
+ FX_DWORD i = 0;
+ if (stack_size != 0) {
+ if (des_size < stack_size) {
+ FXSYS_memcpy(des_buf, &stack[GIF_MAX_LZW_CODE - stack_size], des_size);
+ stack_size -= (FX_WORD)des_size;
+ return 3;
+ }
+ FXSYS_memcpy(des_buf, &stack[GIF_MAX_LZW_CODE - stack_size], stack_size);
+ des_buf += stack_size;
+ i += stack_size;
+ stack_size = 0;
+ }
+ FX_WORD code = 0;
+ while (i <= des_size && (avail_in > 0 || bits_left >= code_size_cur)) {
+ if (code_size_cur > 12) {
+ if (err_msg_ptr) {
+ FXSYS_strncpy(err_msg_ptr, "Code Length Out Of Range",
+ GIF_MAX_ERROR_SIZE - 1);
+ }
+ return 0;
+ }
+ if (avail_in > 0) {
+ code_store |= (*next_in++) << bits_left;
+ avail_in--;
+ bits_left += 8;
+ }
+ while (bits_left >= code_size_cur) {
+ code = (FX_WORD)code_store & ((1 << code_size_cur) - 1);
+ code_store >>= code_size_cur;
+ bits_left -= code_size_cur;
+ if (code == code_clear) {
+ ClearTable();
+ continue;
+ } else if (code == code_end) {
+ des_size = i;
+ return 1;
+ } else {
+ if (code_old != (FX_WORD)-1) {
+ if (code_next < GIF_MAX_LZW_CODE) {
+ if (code == code_next) {
+ AddCode(code_old, code_first);
+ DecodeString(code);
+ } else if (code > code_next) {
+ if (err_msg_ptr) {
+ FXSYS_strncpy(err_msg_ptr, "Decode Error, Out Of Range",
+ GIF_MAX_ERROR_SIZE - 1);
+ }
+ return 0;
+ } else {
+ DecodeString(code);
+ uint8_t append_char = stack[GIF_MAX_LZW_CODE - stack_size];
+ AddCode(code_old, append_char);
+ }
+ }
+ } else {
+ DecodeString(code);
}
- FXSYS_memcpy(des_buf, &stack[GIF_MAX_LZW_CODE - stack_size], stack_size);
+ code_old = code;
+ if (i + stack_size > des_size) {
+ FXSYS_memcpy(des_buf, &stack[GIF_MAX_LZW_CODE - stack_size],
+ des_size - i);
+ stack_size -= (FX_WORD)(des_size - i);
+ return 3;
+ }
+ FXSYS_memcpy(des_buf, &stack[GIF_MAX_LZW_CODE - stack_size],
+ stack_size);
des_buf += stack_size;
i += stack_size;
stack_size = 0;
- }
- FX_WORD code = 0;
- while(i <= des_size && (avail_in > 0 || bits_left >= code_size_cur)) {
- if(code_size_cur > 12) {
- if(err_msg_ptr) {
- FXSYS_strncpy(err_msg_ptr, "Code Length Out Of Range", GIF_MAX_ERROR_SIZE - 1);
- }
- return 0;
- }
- if (avail_in > 0) {
- code_store |= (*next_in++) << bits_left;
- avail_in--;
- bits_left += 8;
- }
- while (bits_left >= code_size_cur) {
- code = (FX_WORD)code_store & ((1 << code_size_cur) - 1);
- code_store >>= code_size_cur;
- bits_left -= code_size_cur;
- if(code == code_clear) {
- ClearTable();
- continue;
- } else if (code == code_end) {
- des_size = i;
- return 1;
- } else {
- if(code_old != (FX_WORD) - 1) {
- if(code_next < GIF_MAX_LZW_CODE) {
- if(code == code_next) {
- AddCode(code_old, code_first);
- DecodeString(code);
- } else if(code > code_next) {
- if(err_msg_ptr) {
- FXSYS_strncpy(err_msg_ptr, "Decode Error, Out Of Range", GIF_MAX_ERROR_SIZE - 1);
- }
- return 0;
- } else {
- DecodeString(code);
- uint8_t append_char = stack[GIF_MAX_LZW_CODE - stack_size];
- AddCode(code_old, append_char);
- }
- }
- } else {
- DecodeString(code);
- }
- code_old = code;
- if(i + stack_size > des_size) {
- FXSYS_memcpy(des_buf, &stack[GIF_MAX_LZW_CODE - stack_size], des_size - i);
- stack_size -= (FX_WORD)(des_size - i);
- return 3;
- }
- FXSYS_memcpy(des_buf, &stack[GIF_MAX_LZW_CODE - stack_size], stack_size);
- des_buf += stack_size;
- i += stack_size;
- stack_size = 0;
- }
- }
- }
- if(avail_in == 0) {
- des_size = i;
- return 2;
- }
- return 0;
+ }
+ }
+ }
+ if (avail_in == 0) {
+ des_size = i;
+ return 2;
+ }
+ return 0;
}
-static FX_BOOL _gif_grow_buf(uint8_t*& dst_buf, FX_DWORD& dst_len, FX_DWORD size)
-{
- if (dst_len < size) {
- FX_DWORD len_org = dst_len;
- while (dst_buf && dst_len < size) {
- dst_len <<= 1;
- dst_buf = FX_Realloc(uint8_t, dst_buf, dst_len);
- }
- if (dst_buf == NULL) {
- dst_len = size;
- dst_buf = FX_Realloc(uint8_t, dst_buf, dst_len);
- if (dst_buf == NULL) {
- return FALSE;
- }
- }
- FXSYS_memset(dst_buf + len_org, 0, dst_len - len_org);
- return dst_buf != NULL;
+static FX_BOOL _gif_grow_buf(uint8_t*& dst_buf,
+ FX_DWORD& dst_len,
+ FX_DWORD size) {
+ if (dst_len < size) {
+ FX_DWORD len_org = dst_len;
+ while (dst_buf && dst_len < size) {
+ dst_len <<= 1;
+ dst_buf = FX_Realloc(uint8_t, dst_buf, dst_len);
+ }
+ if (dst_buf == NULL) {
+ dst_len = size;
+ dst_buf = FX_Realloc(uint8_t, dst_buf, dst_len);
+ if (dst_buf == NULL) {
+ return FALSE;
+ }
}
- return TRUE;
+ FXSYS_memset(dst_buf + len_org, 0, dst_len - len_org);
+ return dst_buf != NULL;
+ }
+ return TRUE;
}
-static inline void _gif_cut_index(uint8_t& val, FX_DWORD index, uint8_t index_bit, uint8_t index_bit_use, uint8_t bit_use)
-{
- FX_DWORD cut = ((1 << (index_bit - index_bit_use)) - 1) << index_bit_use;
- val |= ((index & cut) >> index_bit_use) << bit_use;
+static inline void _gif_cut_index(uint8_t& val,
+ FX_DWORD index,
+ uint8_t index_bit,
+ uint8_t index_bit_use,
+ uint8_t bit_use) {
+ FX_DWORD cut = ((1 << (index_bit - index_bit_use)) - 1) << index_bit_use;
+ val |= ((index & cut) >> index_bit_use) << bit_use;
}
-static inline uint8_t _gif_cut_buf(const uint8_t* buf, FX_DWORD& offset, uint8_t bit_cut, uint8_t& bit_offset, FX_DWORD& bit_num)
-{
- if (bit_cut != 8) {
- FX_WORD index = 0;
- index |= ((1 << bit_cut) - 1) << (7 - bit_offset);
- uint8_t ret = ((index & buf[offset]) >> (7 - bit_offset));
- bit_offset += bit_cut;
- if (bit_offset >= 8) {
- if (bit_offset > 8) {
- ret |= ((index & (buf[offset + 1] << 8)) >> 8);
- }
- bit_offset -= 8;
- offset ++;
- }
- bit_num += bit_cut;
- return ret;
+static inline uint8_t _gif_cut_buf(const uint8_t* buf,
+ FX_DWORD& offset,
+ uint8_t bit_cut,
+ uint8_t& bit_offset,
+ FX_DWORD& bit_num) {
+ if (bit_cut != 8) {
+ FX_WORD index = 0;
+ index |= ((1 << bit_cut) - 1) << (7 - bit_offset);
+ uint8_t ret = ((index & buf[offset]) >> (7 - bit_offset));
+ bit_offset += bit_cut;
+ if (bit_offset >= 8) {
+ if (bit_offset > 8) {
+ ret |= ((index & (buf[offset + 1] << 8)) >> 8);
+ }
+ bit_offset -= 8;
+ offset++;
}
bit_num += bit_cut;
- return buf[offset++];
+ return ret;
+ }
+ bit_num += bit_cut;
+ return buf[offset++];
}
-CGifLZWEncoder::CGifLZWEncoder()
-{
- FXSYS_memset(this, 0, sizeof(CGifLZWEncoder));
+CGifLZWEncoder::CGifLZWEncoder() {
+ FXSYS_memset(this, 0, sizeof(CGifLZWEncoder));
}
-CGifLZWEncoder::~CGifLZWEncoder()
-{
-}
-void CGifLZWEncoder::ClearTable()
-{
- index_bit_cur = code_size + 1;
- index_num = code_end + 1;
- table_cur = code_end + 1;
- for (FX_WORD i = 0; i < GIF_MAX_LZW_CODE; i++) {
- code_table[i].prefix = 0;
- code_table[i].suffix = 0;
- }
+CGifLZWEncoder::~CGifLZWEncoder() {}
+void CGifLZWEncoder::ClearTable() {
+ index_bit_cur = code_size + 1;
+ index_num = code_end + 1;
+ table_cur = code_end + 1;
+ for (FX_WORD i = 0; i < GIF_MAX_LZW_CODE; i++) {
+ code_table[i].prefix = 0;
+ code_table[i].suffix = 0;
+ }
}
-void CGifLZWEncoder::Start( uint8_t code_len, const uint8_t* src_buf, uint8_t*& dst_buf, FX_DWORD& offset)
-{
- code_size = code_len + 1;
- src_bit_cut = code_size;
- if (code_len == 0) {
- src_bit_cut = 1;
- code_size = 2;
- }
- code_clear = 1 << code_size;
- code_end = code_clear + 1;
- dst_buf[offset++] = code_size;
- bit_offset = 0;
- ClearTable();
- src_offset = 0;
- src_bit_offset = 0;
- src_bit_num = 0;
- code_table[index_num].prefix = _gif_cut_buf(src_buf, src_offset, src_bit_cut, src_bit_offset, src_bit_num);
- code_table[index_num].suffix = _gif_cut_buf(src_buf, src_offset, src_bit_cut, src_bit_offset, src_bit_num);
+void CGifLZWEncoder::Start(uint8_t code_len,
+ const uint8_t* src_buf,
+ uint8_t*& dst_buf,
+ FX_DWORD& offset) {
+ code_size = code_len + 1;
+ src_bit_cut = code_size;
+ if (code_len == 0) {
+ src_bit_cut = 1;
+ code_size = 2;
+ }
+ code_clear = 1 << code_size;
+ code_end = code_clear + 1;
+ dst_buf[offset++] = code_size;
+ bit_offset = 0;
+ ClearTable();
+ src_offset = 0;
+ src_bit_offset = 0;
+ src_bit_num = 0;
+ code_table[index_num].prefix = _gif_cut_buf(src_buf, src_offset, src_bit_cut,
+ src_bit_offset, src_bit_num);
+ code_table[index_num].suffix = _gif_cut_buf(src_buf, src_offset, src_bit_cut,
+ src_bit_offset, src_bit_num);
}
-void CGifLZWEncoder::WriteBlock(uint8_t*& dst_buf, FX_DWORD& dst_len, FX_DWORD& offset)
-{
- if (!_gif_grow_buf(dst_buf, dst_len, offset + GIF_DATA_BLOCK + 1)) {
- longjmp(jmp, 1);
- }
- dst_buf[offset++] = index_buf_len;
- FXSYS_memcpy(&dst_buf[offset], index_buf, index_buf_len);
- offset += index_buf_len;
- FXSYS_memset(index_buf, 0, GIF_DATA_BLOCK);
- index_buf_len = 0;
+void CGifLZWEncoder::WriteBlock(uint8_t*& dst_buf,
+ FX_DWORD& dst_len,
+ FX_DWORD& offset) {
+ if (!_gif_grow_buf(dst_buf, dst_len, offset + GIF_DATA_BLOCK + 1)) {
+ longjmp(jmp, 1);
+ }
+ dst_buf[offset++] = index_buf_len;
+ FXSYS_memcpy(&dst_buf[offset], index_buf, index_buf_len);
+ offset += index_buf_len;
+ FXSYS_memset(index_buf, 0, GIF_DATA_BLOCK);
+ index_buf_len = 0;
}
-void CGifLZWEncoder::EncodeString( FX_DWORD index, uint8_t*& dst_buf, FX_DWORD& dst_len, FX_DWORD& offset )
-{
- uint8_t index_bit_use;
- index_bit_use = 0;
+void CGifLZWEncoder::EncodeString(FX_DWORD index,
+ uint8_t*& dst_buf,
+ FX_DWORD& dst_len,
+ FX_DWORD& offset) {
+ uint8_t index_bit_use;
+ index_bit_use = 0;
+ if (index_buf_len == GIF_DATA_BLOCK) {
+ WriteBlock(dst_buf, dst_len, offset);
+ }
+ _gif_cut_index(index_buf[index_buf_len], index, index_bit_cur, index_bit_use,
+ bit_offset);
+ if (index_bit_cur <= (8 - bit_offset)) {
+ bit_offset += index_bit_cur;
+ } else if (index_bit_cur <= (16 - bit_offset)) {
+ index_bit_use += (8 - bit_offset);
+ bit_offset = 0;
+ index_buf_len++;
if (index_buf_len == GIF_DATA_BLOCK) {
- WriteBlock(dst_buf, dst_len, offset);
- }
- _gif_cut_index(index_buf[index_buf_len], index, index_bit_cur, index_bit_use, bit_offset);
- if (index_bit_cur <= (8 - bit_offset)) {
- bit_offset += index_bit_cur;
- } else if (index_bit_cur <= (16 - bit_offset)) {
- index_bit_use += (8 - bit_offset);
- bit_offset = 0;
- index_buf_len++;
- if (index_buf_len == GIF_DATA_BLOCK) {
- WriteBlock(dst_buf, dst_len, offset);
- }
- _gif_cut_index(index_buf[index_buf_len], index, index_bit_cur, index_bit_use, bit_offset);
- bit_offset = index_bit_cur - index_bit_use;
- } else {
- index_bit_use += (8 - bit_offset);
- bit_offset = 0;
- index_buf_len++;
- if (index_buf_len == GIF_DATA_BLOCK) {
- WriteBlock(dst_buf, dst_len, offset);
- }
- _gif_cut_index(index_buf[index_buf_len], index, index_bit_cur, index_bit_use, bit_offset);
- index_bit_use += 8;
- bit_offset = 0;
- index_buf_len++;
- if (index_buf_len == GIF_DATA_BLOCK) {
- WriteBlock(dst_buf, dst_len, offset);
- }
- _gif_cut_index(index_buf[index_buf_len], index, index_bit_cur, index_bit_use, bit_offset);
- bit_offset = index_bit_cur - index_bit_use;
- }
- if (bit_offset == 8) {
- bit_offset = 0;
- index_buf_len++;
- if (index_buf_len == GIF_DATA_BLOCK) {
- WriteBlock(dst_buf, dst_len, offset);
- }
- }
- if (index == code_end) {
- index_buf_len++;
- WriteBlock(dst_buf, dst_len, offset);
+ WriteBlock(dst_buf, dst_len, offset);
}
- if (index_num++ >> index_bit_cur) {
- index_bit_cur++;
- }
-}
-FX_BOOL CGifLZWEncoder::Encode( const uint8_t* src_buf, FX_DWORD src_len, uint8_t*& dst_buf, FX_DWORD& dst_len, FX_DWORD& offset )
-{
- uint8_t suffix;
- if (setjmp(jmp)) {
- return FALSE;
+ _gif_cut_index(index_buf[index_buf_len], index, index_bit_cur,
+ index_bit_use, bit_offset);
+ bit_offset = index_bit_cur - index_bit_use;
+ } else {
+ index_bit_use += (8 - bit_offset);
+ bit_offset = 0;
+ index_buf_len++;
+ if (index_buf_len == GIF_DATA_BLOCK) {
+ WriteBlock(dst_buf, dst_len, offset);
}
- while(src_bit_num < src_len) {
- if (!LookUpInTable(src_buf, src_offset, src_bit_offset)) {
- EncodeString(code_table[index_num].prefix, dst_buf, dst_len, offset);
- if (index_num == GIF_MAX_LZW_CODE) {
- suffix = code_table[index_num - 1].suffix;
- EncodeString(code_clear, dst_buf, dst_len, offset);
- ClearTable();
- code_table[index_num].prefix = suffix;
- code_table[index_num].suffix = _gif_cut_buf(src_buf, src_offset, src_bit_cut, src_bit_offset, src_bit_num);
- } else {
- code_table[index_num].prefix = code_table[index_num - 1].suffix;
- code_table[index_num].suffix = _gif_cut_buf(src_buf, src_offset, src_bit_cut, src_bit_offset, src_bit_num);
- }
- }
+ _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);
}
- src_offset = 0;
- src_bit_offset = 0;
- src_bit_num = 0;
- return TRUE;
+ _gif_cut_index(index_buf[index_buf_len], index, index_bit_cur,
+ index_bit_use, bit_offset);
+ bit_offset = index_bit_cur - index_bit_use;
+ }
+ if (bit_offset == 8) {
+ bit_offset = 0;
+ index_buf_len++;
+ if (index_buf_len == GIF_DATA_BLOCK) {
+ WriteBlock(dst_buf, dst_len, offset);
+ }
+ }
+ if (index == code_end) {
+ index_buf_len++;
+ WriteBlock(dst_buf, dst_len, offset);
+ }
+ if (index_num++ >> index_bit_cur) {
+ index_bit_cur++;
+ }
}
-FX_BOOL CGifLZWEncoder::LookUpInTable( const uint8_t* buf, FX_DWORD& offset, uint8_t& bit_offset )
-{
- for (FX_WORD i = table_cur; i < index_num; i++) {
- if (code_table[i].prefix == code_table[index_num].prefix &&
- code_table[i].suffix == code_table[index_num].suffix) {
- code_table[index_num].prefix = i;
- code_table[index_num].suffix = _gif_cut_buf(buf, offset, src_bit_cut, bit_offset, src_bit_num);
- table_cur = i;
- return TRUE;
- }
- }
- table_cur = code_end + 1;
+FX_BOOL CGifLZWEncoder::Encode(const uint8_t* src_buf,
+ FX_DWORD src_len,
+ uint8_t*& dst_buf,
+ FX_DWORD& dst_len,
+ FX_DWORD& offset) {
+ uint8_t suffix;
+ if (setjmp(jmp)) {
return FALSE;
+ }
+ while (src_bit_num < src_len) {
+ if (!LookUpInTable(src_buf, src_offset, src_bit_offset)) {
+ EncodeString(code_table[index_num].prefix, dst_buf, dst_len, offset);
+ if (index_num == GIF_MAX_LZW_CODE) {
+ suffix = code_table[index_num - 1].suffix;
+ EncodeString(code_clear, dst_buf, dst_len, offset);
+ ClearTable();
+ code_table[index_num].prefix = suffix;
+ code_table[index_num].suffix = _gif_cut_buf(
+ src_buf, src_offset, src_bit_cut, src_bit_offset, src_bit_num);
+ } else {
+ code_table[index_num].prefix = code_table[index_num - 1].suffix;
+ code_table[index_num].suffix = _gif_cut_buf(
+ src_buf, src_offset, src_bit_cut, src_bit_offset, src_bit_num);
+ }
+ }
+ }
+ src_offset = 0;
+ src_bit_offset = 0;
+ src_bit_num = 0;
+ return TRUE;
}
-void CGifLZWEncoder::Finish(uint8_t*& dst_buf, FX_DWORD& dst_len, FX_DWORD& offset)
-{
- EncodeString(code_table[index_num].prefix, dst_buf, dst_len, offset);
- EncodeString(code_end, dst_buf, dst_len, offset);
- bit_offset = 0;
- ClearTable();
+FX_BOOL CGifLZWEncoder::LookUpInTable(const uint8_t* buf,
+ FX_DWORD& offset,
+ uint8_t& bit_offset) {
+ for (FX_WORD i = table_cur; i < index_num; i++) {
+ if (code_table[i].prefix == code_table[index_num].prefix &&
+ code_table[i].suffix == code_table[index_num].suffix) {
+ code_table[index_num].prefix = i;
+ code_table[index_num].suffix =
+ _gif_cut_buf(buf, offset, src_bit_cut, bit_offset, src_bit_num);
+ table_cur = i;
+ return TRUE;
+ }
+ }
+ table_cur = code_end + 1;
+ return FALSE;
}
-gif_decompress_struct_p _gif_create_decompress()
-{
- gif_decompress_struct_p gif_ptr = (gif_decompress_struct*)FX_Alloc(uint8_t, sizeof(gif_decompress_struct));
- if(gif_ptr == NULL) {
- return NULL;
- }
- FXSYS_memset(gif_ptr, 0, sizeof(gif_decompress_struct));
- gif_ptr->decode_status = GIF_D_STATUS_SIG;
- gif_ptr->img_ptr_arr_ptr = new CFX_ArrayTemplate<GifImage*>;
+void CGifLZWEncoder::Finish(uint8_t*& dst_buf,
+ FX_DWORD& dst_len,
+ FX_DWORD& offset) {
+ EncodeString(code_table[index_num].prefix, dst_buf, dst_len, offset);
+ EncodeString(code_end, dst_buf, dst_len, offset);
+ bit_offset = 0;
+ ClearTable();
+}
+gif_decompress_struct_p _gif_create_decompress() {
+ gif_decompress_struct_p gif_ptr =
+ (gif_decompress_struct*)FX_Alloc(uint8_t, sizeof(gif_decompress_struct));
+ if (gif_ptr == NULL) {
+ return NULL;
+ }
+ FXSYS_memset(gif_ptr, 0, sizeof(gif_decompress_struct));
+ gif_ptr->decode_status = GIF_D_STATUS_SIG;
+ gif_ptr->img_ptr_arr_ptr = new CFX_ArrayTemplate<GifImage*>;
#ifdef GIF_SUPPORT_COMMENT_EXTENSION
- gif_ptr->cmt_data_ptr = new CFX_ByteString;
+ 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*>;
+ gif_ptr->pt_ptr_arr_ptr = new CFX_ArrayTemplate<GifPlainText*>;
#endif
- return gif_ptr;
+ return gif_ptr;
}
-void _gif_destroy_decompress(gif_decompress_struct_pp gif_ptr_ptr)
-{
- if(gif_ptr_ptr == NULL || *gif_ptr_ptr == NULL) {
- return;
- }
- gif_decompress_struct_p gif_ptr = *gif_ptr_ptr;
- *gif_ptr_ptr = NULL;
- if(gif_ptr->global_pal_ptr != NULL) {
- FX_Free(gif_ptr->global_pal_ptr);
- }
- if(gif_ptr->img_decoder_ptr != NULL) {
- delete gif_ptr->img_decoder_ptr;
- }
- if(gif_ptr->img_ptr_arr_ptr != NULL) {
- int32_t size_img_arr = gif_ptr->img_ptr_arr_ptr->GetSize();
- for (int32_t i = 0; i < size_img_arr; i++) {
- GifImage* p = gif_ptr->img_ptr_arr_ptr->GetAt(i);
- if(p->image_info_ptr != NULL) {
- FX_Free(p->image_info_ptr);
- }
- if(p->image_gce_ptr != NULL) {
- FX_Free(p->image_gce_ptr);
- }
- if(p->image_row_buf != NULL) {
- FX_Free(p->image_row_buf);
- }
- if(p->local_pal_ptr != NULL && p->local_pal_ptr != gif_ptr->global_pal_ptr) {
- FX_Free(p->local_pal_ptr);
- }
- FX_Free(p);
- }
- gif_ptr->img_ptr_arr_ptr->RemoveAll();
- delete gif_ptr->img_ptr_arr_ptr;
- }
+void _gif_destroy_decompress(gif_decompress_struct_pp gif_ptr_ptr) {
+ if (gif_ptr_ptr == NULL || *gif_ptr_ptr == NULL) {
+ return;
+ }
+ gif_decompress_struct_p gif_ptr = *gif_ptr_ptr;
+ *gif_ptr_ptr = NULL;
+ if (gif_ptr->global_pal_ptr != NULL) {
+ FX_Free(gif_ptr->global_pal_ptr);
+ }
+ if (gif_ptr->img_decoder_ptr != NULL) {
+ delete gif_ptr->img_decoder_ptr;
+ }
+ if (gif_ptr->img_ptr_arr_ptr != NULL) {
+ int32_t size_img_arr = gif_ptr->img_ptr_arr_ptr->GetSize();
+ for (int32_t i = 0; i < size_img_arr; i++) {
+ GifImage* p = gif_ptr->img_ptr_arr_ptr->GetAt(i);
+ if (p->image_info_ptr != NULL) {
+ FX_Free(p->image_info_ptr);
+ }
+ if (p->image_gce_ptr != NULL) {
+ FX_Free(p->image_gce_ptr);
+ }
+ if (p->image_row_buf != NULL) {
+ FX_Free(p->image_row_buf);
+ }
+ if (p->local_pal_ptr != NULL &&
+ p->local_pal_ptr != gif_ptr->global_pal_ptr) {
+ FX_Free(p->local_pal_ptr);
+ }
+ FX_Free(p);
+ }
+ gif_ptr->img_ptr_arr_ptr->RemoveAll();
+ delete gif_ptr->img_ptr_arr_ptr;
+ }
#ifdef GIF_SUPPORT_APPLICATION_EXTENSION
- if(gif_ptr->app_data != NULL) {
- FX_Free(gif_ptr->app_data);
- }
+ if (gif_ptr->app_data != NULL) {
+ FX_Free(gif_ptr->app_data);
+ }
#endif
#ifdef GIF_SUPPORT_COMMENT_EXTENSION
- if(gif_ptr->cmt_data_ptr != NULL) {
- delete gif_ptr->cmt_data_ptr;
- }
+ if (gif_ptr->cmt_data_ptr != NULL) {
+ delete gif_ptr->cmt_data_ptr;
+ }
#endif
#ifdef GIF_SUPPORT_GRAPHIC_CONTROL_EXTENSION
- if(gif_ptr->gce_ptr != NULL) {
- FX_Free(gif_ptr->gce_ptr);
- }
+ if (gif_ptr->gce_ptr != NULL) {
+ FX_Free(gif_ptr->gce_ptr);
+ }
#endif
#ifdef GIF_SUPPORT_PLAIN_TEXT_EXTENSION
- if(gif_ptr->pt_ptr_arr_ptr != NULL) {
- int32_t size_pt_arr = gif_ptr->pt_ptr_arr_ptr->GetSize();
- for (int32_t i = 0; i < size_pt_arr; i++) {
- GifPlainText* p = gif_ptr->pt_ptr_arr_ptr->GetAt(i);
- if(p->gce_ptr != NULL) {
- FX_Free(p->gce_ptr);
- }
- if(p->pte_ptr != NULL) {
- FX_Free(p->pte_ptr);
- }
- if(p->string_ptr != NULL) {
- delete p->string_ptr;
- }
- }
- gif_ptr->pt_ptr_arr_ptr->RemoveAll();
- delete gif_ptr->pt_ptr_arr_ptr;
- }
+ if (gif_ptr->pt_ptr_arr_ptr != NULL) {
+ int32_t size_pt_arr = gif_ptr->pt_ptr_arr_ptr->GetSize();
+ for (int32_t i = 0; i < size_pt_arr; i++) {
+ GifPlainText* p = gif_ptr->pt_ptr_arr_ptr->GetAt(i);
+ if (p->gce_ptr != NULL) {
+ FX_Free(p->gce_ptr);
+ }
+ if (p->pte_ptr != NULL) {
+ FX_Free(p->pte_ptr);
+ }
+ if (p->string_ptr != NULL) {
+ delete p->string_ptr;
+ }
+ }
+ gif_ptr->pt_ptr_arr_ptr->RemoveAll();
+ delete gif_ptr->pt_ptr_arr_ptr;
+ }
#endif
- FX_Free(gif_ptr);
+ FX_Free(gif_ptr);
}
-gif_compress_struct_p _gif_create_compress()
-{
- gif_compress_struct_p gif_ptr = (gif_compress_struct*)FX_Alloc(uint8_t, sizeof(gif_compress_struct));
- if (gif_ptr == NULL) {
- return NULL;
- }
- FXSYS_memset(gif_ptr, 0, sizeof(gif_compress_struct));
- gif_ptr->img_encoder_ptr = new CGifLZWEncoder;
- gif_ptr->header_ptr = (GifHeader*)FX_Alloc(uint8_t, sizeof(GifHeader));
- if (gif_ptr->header_ptr == NULL) {
- delete(gif_ptr->img_encoder_ptr);
- FX_Free(gif_ptr);
- return NULL;
- }
- FXSYS_memcpy(gif_ptr->header_ptr->signature, GIF_SIGNATURE, 3);
- FXSYS_memcpy(gif_ptr->header_ptr->version, "89a", 3);
- gif_ptr->lsd_ptr = (GifLSD*)FX_Alloc(uint8_t, sizeof(GifLSD));
- if (gif_ptr->lsd_ptr == NULL) {
- FX_Free(gif_ptr->header_ptr);
- delete(gif_ptr->img_encoder_ptr);
- FX_Free(gif_ptr);
- return NULL;
- }
- FXSYS_memset(gif_ptr->lsd_ptr, 0, sizeof(GifLSD));
- gif_ptr->image_info_ptr = (GifImageInfo*)FX_Alloc(uint8_t, sizeof(GifImageInfo));
- if (gif_ptr->image_info_ptr == NULL) {
- FX_Free(gif_ptr->lsd_ptr);
- FX_Free(gif_ptr->header_ptr);
- delete(gif_ptr->img_encoder_ptr);
- FX_Free(gif_ptr);
- return NULL;
- }
- FXSYS_memset(gif_ptr->image_info_ptr, 0, sizeof(GifImageInfo));
+gif_compress_struct_p _gif_create_compress() {
+ gif_compress_struct_p gif_ptr =
+ (gif_compress_struct*)FX_Alloc(uint8_t, sizeof(gif_compress_struct));
+ if (gif_ptr == NULL) {
+ return NULL;
+ }
+ FXSYS_memset(gif_ptr, 0, sizeof(gif_compress_struct));
+ gif_ptr->img_encoder_ptr = new CGifLZWEncoder;
+ gif_ptr->header_ptr = (GifHeader*)FX_Alloc(uint8_t, sizeof(GifHeader));
+ if (gif_ptr->header_ptr == NULL) {
+ delete (gif_ptr->img_encoder_ptr);
+ FX_Free(gif_ptr);
+ return NULL;
+ }
+ FXSYS_memcpy(gif_ptr->header_ptr->signature, GIF_SIGNATURE, 3);
+ FXSYS_memcpy(gif_ptr->header_ptr->version, "89a", 3);
+ gif_ptr->lsd_ptr = (GifLSD*)FX_Alloc(uint8_t, sizeof(GifLSD));
+ if (gif_ptr->lsd_ptr == NULL) {
+ FX_Free(gif_ptr->header_ptr);
+ delete (gif_ptr->img_encoder_ptr);
+ FX_Free(gif_ptr);
+ return NULL;
+ }
+ FXSYS_memset(gif_ptr->lsd_ptr, 0, sizeof(GifLSD));
+ gif_ptr->image_info_ptr =
+ (GifImageInfo*)FX_Alloc(uint8_t, sizeof(GifImageInfo));
+ if (gif_ptr->image_info_ptr == NULL) {
+ FX_Free(gif_ptr->lsd_ptr);
+ FX_Free(gif_ptr->header_ptr);
+ delete (gif_ptr->img_encoder_ptr);
+ FX_Free(gif_ptr);
+ return NULL;
+ }
+ FXSYS_memset(gif_ptr->image_info_ptr, 0, sizeof(GifImageInfo));
#ifdef GIF_SUPPORT_APPLICATION_EXTENSION
- FXSYS_memcpy(gif_ptr->app_identify, "netscape", 8);
- FXSYS_memcpy(gif_ptr->app_authentication, "2.0", 3);
+ FXSYS_memcpy(gif_ptr->app_identify, "netscape", 8);
+ FXSYS_memcpy(gif_ptr->app_authentication, "2.0", 3);
#endif
#ifdef GIF_SUPPORT_GRAPHIC_CONTROL_EXTENSION
- gif_ptr->gce_ptr = (GifGCE*)FX_Alloc(uint8_t, sizeof(GifGCE));
- if (gif_ptr->gce_ptr == NULL) {
- FX_Free(gif_ptr->image_info_ptr);
- FX_Free(gif_ptr->lsd_ptr);
- FX_Free(gif_ptr->header_ptr);
- delete(gif_ptr->img_encoder_ptr);
- FX_Free(gif_ptr);
- return NULL;
- }
+ gif_ptr->gce_ptr = (GifGCE*)FX_Alloc(uint8_t, sizeof(GifGCE));
+ if (gif_ptr->gce_ptr == NULL) {
+ FX_Free(gif_ptr->image_info_ptr);
+ FX_Free(gif_ptr->lsd_ptr);
+ FX_Free(gif_ptr->header_ptr);
+ delete (gif_ptr->img_encoder_ptr);
+ FX_Free(gif_ptr);
+ return NULL;
+ }
#endif
#ifdef GIF_SUPPORT_PLAIN_TEXT_EXTENSION
- gif_ptr->pte_ptr = (GifPTE*)FX_Alloc(uint8_t, sizeof(GifPTE));
- if (gif_ptr->pte_ptr == NULL) {
- FX_Free(gif_ptr->gce_ptr);
- FX_Free(gif_ptr->image_info_ptr);
- FX_Free(gif_ptr->lsd_ptr);
- FX_Free(gif_ptr->header_ptr);
- delete(gif_ptr->img_encoder_ptr);
- FX_Free(gif_ptr);
- return NULL;
- }
- FXSYS_memset(gif_ptr->pte_ptr, 0, sizeof(GifPTE));
- gif_ptr->pte_ptr->block_size = 12;
+ gif_ptr->pte_ptr = (GifPTE*)FX_Alloc(uint8_t, sizeof(GifPTE));
+ if (gif_ptr->pte_ptr == NULL) {
+ FX_Free(gif_ptr->gce_ptr);
+ FX_Free(gif_ptr->image_info_ptr);
+ FX_Free(gif_ptr->lsd_ptr);
+ FX_Free(gif_ptr->header_ptr);
+ delete (gif_ptr->img_encoder_ptr);
+ FX_Free(gif_ptr);
+ return NULL;
+ }
+ FXSYS_memset(gif_ptr->pte_ptr, 0, sizeof(GifPTE));
+ gif_ptr->pte_ptr->block_size = 12;
#endif
- return gif_ptr;
+ return gif_ptr;
}
-void _gif_destroy_compress(gif_compress_struct_pp gif_ptr_ptr)
-{
- if(gif_ptr_ptr == NULL || *gif_ptr_ptr == NULL) {
- return;
- }
- gif_compress_struct_p gif_ptr = *gif_ptr_ptr;
- *gif_ptr_ptr = NULL;
- if(gif_ptr->header_ptr != NULL) {
- FX_Free(gif_ptr->header_ptr);
- }
- if(gif_ptr->lsd_ptr != NULL) {
- FX_Free(gif_ptr->lsd_ptr);
- }
- if(gif_ptr->global_pal != NULL) {
- FX_Free(gif_ptr->global_pal);
- }
- if(gif_ptr->image_info_ptr != NULL) {
- FX_Free(gif_ptr->image_info_ptr);
- }
- if(gif_ptr->local_pal != NULL) {
- FX_Free(gif_ptr->local_pal);
- }
- if(gif_ptr->img_encoder_ptr != NULL) {
- delete gif_ptr->img_encoder_ptr;
- }
+void _gif_destroy_compress(gif_compress_struct_pp gif_ptr_ptr) {
+ if (gif_ptr_ptr == NULL || *gif_ptr_ptr == NULL) {
+ return;
+ }
+ gif_compress_struct_p gif_ptr = *gif_ptr_ptr;
+ *gif_ptr_ptr = NULL;
+ if (gif_ptr->header_ptr != NULL) {
+ FX_Free(gif_ptr->header_ptr);
+ }
+ if (gif_ptr->lsd_ptr != NULL) {
+ FX_Free(gif_ptr->lsd_ptr);
+ }
+ if (gif_ptr->global_pal != NULL) {
+ FX_Free(gif_ptr->global_pal);
+ }
+ if (gif_ptr->image_info_ptr != NULL) {
+ FX_Free(gif_ptr->image_info_ptr);
+ }
+ if (gif_ptr->local_pal != NULL) {
+ FX_Free(gif_ptr->local_pal);
+ }
+ if (gif_ptr->img_encoder_ptr != NULL) {
+ delete gif_ptr->img_encoder_ptr;
+ }
#ifdef GIF_SUPPORT_APPLICATION_EXTENSION
- if(gif_ptr->app_data != NULL) {
- FX_Free(gif_ptr->app_data);
- }
+ if (gif_ptr->app_data != NULL) {
+ FX_Free(gif_ptr->app_data);
+ }
#endif
#ifdef GIF_SUPPORT_GRAPHIC_CONTROL_EXTENSION
- if(gif_ptr->gce_ptr != NULL) {
- FX_Free(gif_ptr->gce_ptr);
- }
+ if (gif_ptr->gce_ptr != NULL) {
+ FX_Free(gif_ptr->gce_ptr);
+ }
#endif
#ifdef GIF_SUPPORT_COMMENT_EXTENSION
- if(gif_ptr->cmt_data_ptr != NULL) {
- FX_Free(gif_ptr->cmt_data_ptr);
- }
+ if (gif_ptr->cmt_data_ptr != NULL) {
+ FX_Free(gif_ptr->cmt_data_ptr);
+ }
#endif
#ifdef GIF_SUPPORT_PLAIN_TEXT_EXTENSION
- if(gif_ptr->pte_ptr != NULL) {
- FX_Free(gif_ptr->pte_ptr);
- }
+ if (gif_ptr->pte_ptr != NULL) {
+ FX_Free(gif_ptr->pte_ptr);
+ }
#endif
- FX_Free(gif_ptr);
+ FX_Free(gif_ptr);
}
-void _gif_error(gif_decompress_struct_p gif_ptr, const FX_CHAR* err_msg)
-{
- if(gif_ptr != NULL && gif_ptr->_gif_error_fn != NULL) {
- gif_ptr->_gif_error_fn(gif_ptr, err_msg);
- }
+void _gif_error(gif_decompress_struct_p gif_ptr, const FX_CHAR* err_msg) {
+ if (gif_ptr != NULL && gif_ptr->_gif_error_fn != NULL) {
+ gif_ptr->_gif_error_fn(gif_ptr, err_msg);
+ }
}
void _gif_warn(gif_decompress_struct_p gif_ptr, const FX_CHAR* err_msg) {}
-int32_t _gif_read_header(gif_decompress_struct_p gif_ptr)
-{
- if(gif_ptr == NULL) {
- return 0;
- }
- FX_DWORD skip_size_org = gif_ptr->skip_size;
- ASSERT(sizeof(GifHeader) == 6);
- GifHeader* gif_header_ptr = NULL;
- if(_gif_read_data(gif_ptr, (uint8_t**)&gif_header_ptr, 6) == NULL) {
- return 2;
- }
- if(FXSYS_strncmp(gif_header_ptr->signature, GIF_SIGNATURE, 3) != 0 ||
- gif_header_ptr->version[0] != '8' ||
- gif_header_ptr->version[2] != 'a') {
- _gif_error(gif_ptr, "Not A Gif Image");
- return 0;
- }
- ASSERT(sizeof(GifLSD) == 7);
- GifLSD* gif_lsd_ptr = NULL;
- if(_gif_read_data(gif_ptr, (uint8_t**)&gif_lsd_ptr, 7) == NULL) {
- gif_ptr->skip_size = skip_size_org;
- return 2;
- }
- if(((GifGF*)&gif_lsd_ptr->global_flag)->global_pal) {
- gif_ptr->global_pal_num = 2 << ((GifGF*)&gif_lsd_ptr->global_flag)->pal_bits;
- ASSERT(sizeof(GifPalette) == 3);
- int32_t global_pal_size = gif_ptr->global_pal_num * 3;
- uint8_t* global_pal_ptr = NULL;
- if (_gif_read_data(gif_ptr, &global_pal_ptr, global_pal_size) == NULL) {
- gif_ptr->skip_size = skip_size_org;
- return 2;
+int32_t _gif_read_header(gif_decompress_struct_p gif_ptr) {
+ if (gif_ptr == NULL) {
+ return 0;
+ }
+ FX_DWORD skip_size_org = gif_ptr->skip_size;
+ ASSERT(sizeof(GifHeader) == 6);
+ GifHeader* gif_header_ptr = NULL;
+ if (_gif_read_data(gif_ptr, (uint8_t**)&gif_header_ptr, 6) == NULL) {
+ return 2;
+ }
+ if (FXSYS_strncmp(gif_header_ptr->signature, GIF_SIGNATURE, 3) != 0 ||
+ gif_header_ptr->version[0] != '8' || gif_header_ptr->version[2] != 'a') {
+ _gif_error(gif_ptr, "Not A Gif Image");
+ return 0;
+ }
+ ASSERT(sizeof(GifLSD) == 7);
+ GifLSD* gif_lsd_ptr = NULL;
+ if (_gif_read_data(gif_ptr, (uint8_t**)&gif_lsd_ptr, 7) == NULL) {
+ gif_ptr->skip_size = skip_size_org;
+ return 2;
+ }
+ if (((GifGF*)&gif_lsd_ptr->global_flag)->global_pal) {
+ gif_ptr->global_pal_num = 2
+ << ((GifGF*)&gif_lsd_ptr->global_flag)->pal_bits;
+ ASSERT(sizeof(GifPalette) == 3);
+ int32_t global_pal_size = gif_ptr->global_pal_num * 3;
+ uint8_t* global_pal_ptr = NULL;
+ if (_gif_read_data(gif_ptr, &global_pal_ptr, global_pal_size) == NULL) {
+ gif_ptr->skip_size = skip_size_org;
+ return 2;
+ }
+ gif_ptr->global_sort_flag = ((GifGF*)&gif_lsd_ptr->global_flag)->sort_flag;
+ gif_ptr->global_color_resolution =
+ ((GifGF*)&gif_lsd_ptr->global_flag)->color_resolution;
+ if (gif_ptr->global_pal_ptr != NULL) {
+ FX_Free(gif_ptr->global_pal_ptr);
+ }
+ gif_ptr->global_pal_ptr = NULL;
+ gif_ptr->global_pal_ptr = (GifPalette*)FX_Alloc(uint8_t, global_pal_size);
+ GIF_PTR_NOT_NULL(gif_ptr->global_pal_ptr, gif_ptr);
+ FXSYS_memcpy(gif_ptr->global_pal_ptr, global_pal_ptr, global_pal_size);
+ }
+ gif_ptr->width = (int)_GetWord_LSBFirst((uint8_t*)&gif_lsd_ptr->width);
+ gif_ptr->height = (int)_GetWord_LSBFirst((uint8_t*)&gif_lsd_ptr->height);
+ gif_ptr->bc_index = gif_lsd_ptr->bc_index;
+ gif_ptr->pixel_aspect = gif_lsd_ptr->pixel_aspect;
+ return 1;
+}
+int32_t _gif_get_frame(gif_decompress_struct_p gif_ptr) {
+ if (gif_ptr == NULL) {
+ return 0;
+ }
+ int32_t ret = 1;
+ while (TRUE) {
+ switch (gif_ptr->decode_status) {
+ case GIF_D_STATUS_TAIL:
+ return 1;
+ case GIF_D_STATUS_SIG: {
+ uint8_t* sig_ptr = NULL;
+ if (_gif_read_data(gif_ptr, &sig_ptr, 1) == NULL) {
+ return 2;
}
- gif_ptr->global_sort_flag = ((GifGF*)&gif_lsd_ptr->global_flag)->sort_flag;
- gif_ptr->global_color_resolution = ((GifGF*)&gif_lsd_ptr->global_flag)->color_resolution;
- if(gif_ptr->global_pal_ptr != NULL) {
- FX_Free(gif_ptr->global_pal_ptr);
+ switch (*sig_ptr) {
+ case GIF_SIG_EXTENSION:
+ _gif_save_decoding_status(gif_ptr, GIF_D_STATUS_EXT);
+ continue;
+ case GIF_SIG_IMAGE:
+ _gif_save_decoding_status(gif_ptr, GIF_D_STATUS_IMG_INFO);
+ continue;
+ case GIF_SIG_TRAILER:
+ _gif_save_decoding_status(gif_ptr, GIF_D_STATUS_TAIL);
+ return 1;
+ default:
+ if (gif_ptr->avail_in) {
+ _gif_warn(gif_ptr, "The Gif File has non_standard Tag!");
+ _gif_save_decoding_status(gif_ptr, GIF_D_STATUS_SIG);
+ continue;
+ }
+ _gif_warn(gif_ptr, "The Gif File Doesn't have Trailer Tag!");
+ return 1;
}
- gif_ptr->global_pal_ptr = NULL;
- gif_ptr->global_pal_ptr = (GifPalette*)FX_Alloc(uint8_t, global_pal_size);
- GIF_PTR_NOT_NULL(gif_ptr->global_pal_ptr, gif_ptr);
- FXSYS_memcpy(gif_ptr->global_pal_ptr, global_pal_ptr, global_pal_size);
- }
- gif_ptr->width = (int)_GetWord_LSBFirst((uint8_t*)&gif_lsd_ptr->width);
- gif_ptr->height = (int)_GetWord_LSBFirst((uint8_t*)&gif_lsd_ptr->height);
- gif_ptr->bc_index = gif_lsd_ptr->bc_index;
- gif_ptr->pixel_aspect = gif_lsd_ptr->pixel_aspect;
- return 1;
-}
-int32_t _gif_get_frame(gif_decompress_struct_p gif_ptr)
-{
- if(gif_ptr == NULL) {
- return 0;
- }
- int32_t ret = 1;
- while (TRUE) {
- switch(gif_ptr->decode_status) {
- case GIF_D_STATUS_TAIL:
- return 1;
- case GIF_D_STATUS_SIG: {
- uint8_t* sig_ptr = NULL;
- if(_gif_read_data(gif_ptr, &sig_ptr, 1) == NULL) {
- return 2;
- }
- switch(*sig_ptr) {
- case GIF_SIG_EXTENSION:
- _gif_save_decoding_status(gif_ptr, GIF_D_STATUS_EXT);
- continue;
- case GIF_SIG_IMAGE:
- _gif_save_decoding_status(gif_ptr, GIF_D_STATUS_IMG_INFO);
- continue;
- case GIF_SIG_TRAILER:
- _gif_save_decoding_status(gif_ptr, GIF_D_STATUS_TAIL);
- return 1;
- default:
- if (gif_ptr->avail_in) {
- _gif_warn(gif_ptr, "The Gif File has non_standard Tag!");
- _gif_save_decoding_status(gif_ptr, GIF_D_STATUS_SIG);
- continue;
- }
- _gif_warn(gif_ptr, "The Gif File Doesn't have Trailer Tag!");
- return 1;
- }
- }
- case GIF_D_STATUS_EXT: {
- uint8_t* ext_ptr = NULL;
- if(_gif_read_data(gif_ptr, &ext_ptr, 1) == NULL) {
- return 2;
- }
- switch(*ext_ptr) {
+ }
+ case GIF_D_STATUS_EXT: {
+ uint8_t* ext_ptr = NULL;
+ if (_gif_read_data(gif_ptr, &ext_ptr, 1) == NULL) {
+ return 2;
+ }
+ switch (*ext_ptr) {
#ifdef GIF_SUPPORT_APPLICATION_EXTENSION
- case GIF_BLOCK_AE:
- _gif_save_decoding_status(gif_ptr, GIF_D_STATUS_EXT_AE);
- continue;
+ case GIF_BLOCK_AE:
+ _gif_save_decoding_status(gif_ptr, GIF_D_STATUS_EXT_AE);
+ continue;
#endif
#ifdef GIF_SUPPORT_COMMENT_EXTENSION
- case GIF_BLOCK_CE:
- _gif_save_decoding_status(gif_ptr, GIF_D_STATUS_EXT_CE);
- continue;
+ case GIF_BLOCK_CE:
+ _gif_save_decoding_status(gif_ptr, GIF_D_STATUS_EXT_CE);
+ continue;
#endif
#ifdef GIF_SUPPORT_GRAPHIC_CONTROL_EXTENSION
- case GIF_BLOCK_GCE:
- _gif_save_decoding_status(gif_ptr, GIF_D_STATUS_EXT_GCE);
- continue;
+ case GIF_BLOCK_GCE:
+ _gif_save_decoding_status(gif_ptr, GIF_D_STATUS_EXT_GCE);
+ continue;
#endif
#ifdef GIF_SUPPORT_PLAIN_TEXT_EXTENSION
- case GIF_BLOCK_PTE:
- _gif_save_decoding_status(gif_ptr, GIF_D_STATUS_EXT_PTE);
- continue;
+ case GIF_BLOCK_PTE:
+ _gif_save_decoding_status(gif_ptr, GIF_D_STATUS_EXT_PTE);
+ continue;
#endif
- default: {
- int32_t status = GIF_D_STATUS_EXT_UNE;
+ 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;
- }
+ if (*ext_ptr == GIF_BLOCK_PTE) {
+ status = GIF_D_STATUS_EXT_PTE;
+ }
#endif
- _gif_save_decoding_status(gif_ptr, status);
- continue;
- }
- }
- }
- case GIF_D_STATUS_IMG_INFO: {
- ret = _gif_decode_image_info(gif_ptr);
- if(ret != 1) {
- return ret;
- }
- continue;
- }
- case GIF_D_STATUS_IMG_DATA: {
- uint8_t* data_size_ptr = NULL;
- uint8_t* data_ptr = NULL;
- FX_DWORD skip_size_org = gif_ptr->skip_size;
- if(_gif_read_data(gif_ptr, &data_size_ptr, 1) == NULL) {
- return 2;
- }
- while(*data_size_ptr != GIF_BLOCK_TERMINAL) {
- if(_gif_read_data(gif_ptr, &data_ptr, *data_size_ptr) == NULL) {
- gif_ptr->skip_size = skip_size_org;
- return 2;
- }
- _gif_save_decoding_status(gif_ptr, GIF_D_STATUS_IMG_DATA);
- skip_size_org = gif_ptr->skip_size;
- if(_gif_read_data(gif_ptr, &data_size_ptr, 1) == NULL) {
- return 2;
- }
- }
- _gif_save_decoding_status(gif_ptr, GIF_D_STATUS_SIG);
- continue;
- }
- default: {
- ret = _gif_decode_extension(gif_ptr);
- if(ret != 1) {
- return ret;
- }
- continue;
- }
+ _gif_save_decoding_status(gif_ptr, status);
+ continue;
+ }
+ }
+ }
+ case GIF_D_STATUS_IMG_INFO: {
+ ret = _gif_decode_image_info(gif_ptr);
+ if (ret != 1) {
+ return ret;
+ }
+ continue;
+ }
+ case GIF_D_STATUS_IMG_DATA: {
+ uint8_t* data_size_ptr = NULL;
+ uint8_t* data_ptr = NULL;
+ FX_DWORD skip_size_org = gif_ptr->skip_size;
+ if (_gif_read_data(gif_ptr, &data_size_ptr, 1) == NULL) {
+ return 2;
+ }
+ while (*data_size_ptr != GIF_BLOCK_TERMINAL) {
+ if (_gif_read_data(gif_ptr, &data_ptr, *data_size_ptr) == NULL) {
+ gif_ptr->skip_size = skip_size_org;
+ return 2;
+ }
+ _gif_save_decoding_status(gif_ptr, GIF_D_STATUS_IMG_DATA);
+ skip_size_org = gif_ptr->skip_size;
+ if (_gif_read_data(gif_ptr, &data_size_ptr, 1) == NULL) {
+ return 2;
+ }
+ }
+ _gif_save_decoding_status(gif_ptr, GIF_D_STATUS_SIG);
+ continue;
+ }
+ default: {
+ ret = _gif_decode_extension(gif_ptr);
+ if (ret != 1) {
+ return ret;
}
+ continue;
+ }
}
- return 1;
+ }
+ return 1;
}
-void _gif_takeover_gce_ptr(gif_decompress_struct_p gif_ptr, GifGCE** gce_ptr_ptr)
-{
- *gce_ptr_ptr = NULL;
+void _gif_takeover_gce_ptr(gif_decompress_struct_p gif_ptr,
+ GifGCE** gce_ptr_ptr) {
+ *gce_ptr_ptr = NULL;
#ifdef GIF_SUPPORT_GRAPHIC_CONTROL_EXTENSION
- if(gif_ptr->gce_ptr != NULL && gce_ptr_ptr != NULL) {
- *gce_ptr_ptr = gif_ptr->gce_ptr;
- gif_ptr->gce_ptr = NULL;
- }
+ if (gif_ptr->gce_ptr != NULL && gce_ptr_ptr != NULL) {
+ *gce_ptr_ptr = gif_ptr->gce_ptr;
+ gif_ptr->gce_ptr = NULL;
+ }
#endif
}
-int32_t _gif_decode_extension(gif_decompress_struct_p gif_ptr)
-{
- uint8_t* data_size_ptr = NULL;
- uint8_t* data_ptr = NULL;
- FX_DWORD skip_size_org = gif_ptr->skip_size;
- switch(gif_ptr->decode_status) {
+int32_t _gif_decode_extension(gif_decompress_struct_p gif_ptr) {
+ uint8_t* data_size_ptr = NULL;
+ uint8_t* data_ptr = NULL;
+ FX_DWORD skip_size_org = gif_ptr->skip_size;
+ switch (gif_ptr->decode_status) {
#ifdef GIF_SUPPORT_APPLICATION_EXTENSION
- case GIF_D_STATUS_EXT_AE: {
- ASSERT(sizeof(GifAE) == 12);
- GifAE* gif_ae_ptr = NULL;
- if(_gif_read_data(gif_ptr, (uint8_t**)&gif_ae_ptr, 12) == NULL) {
- return 2;
- }
- CFX_ByteString gif_ae_data_str;
- if(_gif_read_data(gif_ptr, &data_size_ptr, 1) == NULL) {
- gif_ptr->skip_size = skip_size_org;
- return 2;
- }
- while(*data_size_ptr != GIF_BLOCK_TERMINAL) {
- uint8_t data_size = *data_size_ptr;
- if(_gif_read_data(gif_ptr, &data_ptr, *data_size_ptr) == NULL ||
- _gif_read_data(gif_ptr, &data_size_ptr, 1) == NULL) {
- gif_ptr->skip_size = skip_size_org;
- return 2;
- }
- gif_ae_data_str += CFX_ByteString((const uint8_t*)data_ptr, data_size);
- }
- FXSYS_memcpy(gif_ptr->app_identify, gif_ae_ptr->app_identify, 8);
- FXSYS_memcpy(gif_ptr->app_authentication, gif_ae_ptr->app_authentication, 3);
- gif_ptr->app_data_size = gif_ae_data_str.GetLength();
- if(gif_ptr->app_data != NULL) {
- FX_Free(gif_ptr->app_data);
- gif_ptr->app_data = NULL;
- }
- gif_ptr->app_data = FX_Alloc(uint8_t, gif_ptr->app_data_size);
- GIF_PTR_NOT_NULL(gif_ptr->app_data, gif_ptr);
- FXSYS_memcpy(gif_ptr->app_data, const uint8_t*(gif_ae_data_str), gif_ptr->app_data_size);
- }
- break;
+ case GIF_D_STATUS_EXT_AE: {
+ ASSERT(sizeof(GifAE) == 12);
+ GifAE* gif_ae_ptr = NULL;
+ if (_gif_read_data(gif_ptr, (uint8_t**)&gif_ae_ptr, 12) == NULL) {
+ return 2;
+ }
+ CFX_ByteString gif_ae_data_str;
+ if (_gif_read_data(gif_ptr, &data_size_ptr, 1) == NULL) {
+ gif_ptr->skip_size = skip_size_org;
+ return 2;
+ }
+ while (*data_size_ptr != GIF_BLOCK_TERMINAL) {
+ uint8_t data_size = *data_size_ptr;
+ if (_gif_read_data(gif_ptr, &data_ptr, *data_size_ptr) == NULL ||
+ _gif_read_data(gif_ptr, &data_size_ptr, 1) == NULL) {
+ gif_ptr->skip_size = skip_size_org;
+ return 2;
+ }
+ gif_ae_data_str += CFX_ByteString((const uint8_t*)data_ptr, data_size);
+ }
+ FXSYS_memcpy(gif_ptr->app_identify, gif_ae_ptr->app_identify, 8);
+ FXSYS_memcpy(gif_ptr->app_authentication, gif_ae_ptr->app_authentication,
+ 3);
+ gif_ptr->app_data_size = gif_ae_data_str.GetLength();
+ if (gif_ptr->app_data != NULL) {
+ FX_Free(gif_ptr->app_data);
+ gif_ptr->app_data = NULL;
+ }
+ gif_ptr->app_data = FX_Alloc(uint8_t, gif_ptr->app_data_size);
+ GIF_PTR_NOT_NULL(gif_ptr->app_data, gif_ptr);
+ FXSYS_memcpy(gif_ptr->app_data, const uint8_t*(gif_ae_data_str),
+ gif_ptr->app_data_size);
+ } break;
#endif
#ifdef GIF_SUPPORT_COMMENT_EXTENSION
- case GIF_D_STATUS_EXT_CE: {
- if(_gif_read_data(gif_ptr, &data_size_ptr, 1) == NULL) {
- gif_ptr->skip_size = skip_size_org;
- return 2;
- }
- gif_ptr->cmt_data_ptr->Empty();
- while(*data_size_ptr != GIF_BLOCK_TERMINAL) {
- uint8_t data_size = *data_size_ptr;
- if(_gif_read_data(gif_ptr, &data_ptr, *data_size_ptr) == NULL ||
- _gif_read_data(gif_ptr, &data_size_ptr, 1) == NULL) {
- gif_ptr->skip_size = skip_size_org;
- return 2;
- }
- *(gif_ptr->cmt_data_ptr) += CFX_ByteString((const FX_CHAR*)data_ptr, data_size);
- }
- }
- break;
+ case GIF_D_STATUS_EXT_CE: {
+ if (_gif_read_data(gif_ptr, &data_size_ptr, 1) == NULL) {
+ gif_ptr->skip_size = skip_size_org;
+ return 2;
+ }
+ gif_ptr->cmt_data_ptr->Empty();
+ while (*data_size_ptr != GIF_BLOCK_TERMINAL) {
+ uint8_t data_size = *data_size_ptr;
+ if (_gif_read_data(gif_ptr, &data_ptr, *data_size_ptr) == NULL ||
+ _gif_read_data(gif_ptr, &data_size_ptr, 1) == NULL) {
+ gif_ptr->skip_size = skip_size_org;
+ return 2;
+ }
+ *(gif_ptr->cmt_data_ptr) +=
+ CFX_ByteString((const FX_CHAR*)data_ptr, data_size);
+ }
+ } break;
#endif
#ifdef GIF_SUPPORT_PLAIN_TEXT_EXTENSION
- case GIF_D_STATUS_EXT_PTE: {
- ASSERT(sizeof(GifPTE) == 13);
- GifPTE* gif_pte_ptr = NULL;
- if(_gif_read_data(gif_ptr, (uint8_t**)&gif_pte_ptr, 13) == NULL) {
- return 2;
- }
- GifPlainText* gif_pt_ptr = FX_Alloc(GifPlainText, 1);
- GIF_PTR_NOT_NULL(gif_pt_ptr, gif_ptr);
- FXSYS_memset(gif_pt_ptr, 0, sizeof(GifPlainText));
- _gif_takeover_gce_ptr(gif_ptr, &gif_pt_ptr->gce_ptr);
- gif_pt_ptr->pte_ptr = (GifPTE*)FX_Alloc(uint8_t, sizeof(GifPTE));
- GIF_PTR_NOT_NULL(gif_pt_ptr->pte_ptr, gif_ptr);
- gif_pt_ptr->string_ptr = new CFX_ByteString;
- GIF_PTR_NOT_NULL(gif_pt_ptr->string_ptr, gif_ptr);
- gif_pt_ptr->pte_ptr->block_size = gif_pte_ptr->block_size;
- gif_pt_ptr->pte_ptr->grid_left = _GetWord_LSBFirst((uint8_t*)&gif_pte_ptr->grid_left);
- gif_pt_ptr->pte_ptr->grid_top = _GetWord_LSBFirst((uint8_t*)&gif_pte_ptr->grid_top);
- gif_pt_ptr->pte_ptr->grid_width = _GetWord_LSBFirst((uint8_t*)&gif_pte_ptr->grid_width);
- gif_pt_ptr->pte_ptr->grid_height = _GetWord_LSBFirst((uint8_t*)&gif_pte_ptr->grid_height);
- gif_pt_ptr->pte_ptr->char_width = gif_pte_ptr->char_width;
- gif_pt_ptr->pte_ptr->char_height = gif_pte_ptr->char_height;
- gif_pt_ptr->pte_ptr->fc_index = gif_pte_ptr->fc_index;
- gif_pt_ptr->pte_ptr->bc_index = gif_pte_ptr->bc_index;
- if(_gif_read_data(gif_ptr, &data_size_ptr, 1) == NULL) {
- gif_ptr->skip_size = skip_size_org;
- if(gif_pt_ptr != NULL) {
- if(gif_pt_ptr->gce_ptr != NULL) {
- FX_Free(gif_pt_ptr->gce_ptr);
- }
- if(gif_pt_ptr->pte_ptr != NULL) {
- FX_Free(gif_pt_ptr->pte_ptr);
- }
- if(gif_pt_ptr->string_ptr != NULL) {
- delete gif_pt_ptr->string_ptr;
- }
- FX_Free(gif_pt_ptr);
- }
- return 2;
- }
- while(*data_size_ptr != GIF_BLOCK_TERMINAL) {
- uint8_t data_size = *data_size_ptr;
- if(_gif_read_data(gif_ptr, &data_ptr, *data_size_ptr) == NULL ||
- _gif_read_data(gif_ptr, &data_size_ptr, 1) == NULL) {
- gif_ptr->skip_size = skip_size_org;
- if(gif_pt_ptr != NULL) {
- if(gif_pt_ptr->gce_ptr != NULL) {
- FX_Free(gif_pt_ptr->gce_ptr);
- }
- if(gif_pt_ptr->pte_ptr != NULL) {
- FX_Free(gif_pt_ptr->pte_ptr);
- }
- if(gif_pt_ptr->string_ptr != NULL) {
- delete gif_pt_ptr->string_ptr;
- }
- FX_Free(gif_pt_ptr);
- }
- return 2;
- }
- *(gif_pt_ptr->string_ptr) += CFX_ByteString((const FX_CHAR*)data_ptr, data_size);
- }
- gif_ptr->pt_ptr_arr_ptr->Add(gif_pt_ptr);
+ case GIF_D_STATUS_EXT_PTE: {
+ ASSERT(sizeof(GifPTE) == 13);
+ GifPTE* gif_pte_ptr = NULL;
+ if (_gif_read_data(gif_ptr, (uint8_t**)&gif_pte_ptr, 13) == NULL) {
+ return 2;
+ }
+ GifPlainText* gif_pt_ptr = FX_Alloc(GifPlainText, 1);
+ GIF_PTR_NOT_NULL(gif_pt_ptr, gif_ptr);
+ FXSYS_memset(gif_pt_ptr, 0, sizeof(GifPlainText));
+ _gif_takeover_gce_ptr(gif_ptr, &gif_pt_ptr->gce_ptr);
+ gif_pt_ptr->pte_ptr = (GifPTE*)FX_Alloc(uint8_t, sizeof(GifPTE));
+ GIF_PTR_NOT_NULL(gif_pt_ptr->pte_ptr, gif_ptr);
+ gif_pt_ptr->string_ptr = new CFX_ByteString;
+ GIF_PTR_NOT_NULL(gif_pt_ptr->string_ptr, gif_ptr);
+ gif_pt_ptr->pte_ptr->block_size = gif_pte_ptr->block_size;
+ gif_pt_ptr->pte_ptr->grid_left =
+ _GetWord_LSBFirst((uint8_t*)&gif_pte_ptr->grid_left);
+ gif_pt_ptr->pte_ptr->grid_top =
+ _GetWord_LSBFirst((uint8_t*)&gif_pte_ptr->grid_top);
+ gif_pt_ptr->pte_ptr->grid_width =
+ _GetWord_LSBFirst((uint8_t*)&gif_pte_ptr->grid_width);
+ gif_pt_ptr->pte_ptr->grid_height =
+ _GetWord_LSBFirst((uint8_t*)&gif_pte_ptr->grid_height);
+ gif_pt_ptr->pte_ptr->char_width = gif_pte_ptr->char_width;
+ gif_pt_ptr->pte_ptr->char_height = gif_pte_ptr->char_height;
+ gif_pt_ptr->pte_ptr->fc_index = gif_pte_ptr->fc_index;
+ gif_pt_ptr->pte_ptr->bc_index = gif_pte_ptr->bc_index;
+ if (_gif_read_data(gif_ptr, &data_size_ptr, 1) == NULL) {
+ gif_ptr->skip_size = skip_size_org;
+ if (gif_pt_ptr != NULL) {
+ if (gif_pt_ptr->gce_ptr != NULL) {
+ FX_Free(gif_pt_ptr->gce_ptr);
+ }
+ if (gif_pt_ptr->pte_ptr != NULL) {
+ FX_Free(gif_pt_ptr->pte_ptr);
+ }
+ if (gif_pt_ptr->string_ptr != NULL) {
+ delete gif_pt_ptr->string_ptr;
+ }
+ FX_Free(gif_pt_ptr);
+ }
+ return 2;
+ }
+ while (*data_size_ptr != GIF_BLOCK_TERMINAL) {
+ uint8_t data_size = *data_size_ptr;
+ if (_gif_read_data(gif_ptr, &data_ptr, *data_size_ptr) == NULL ||
+ _gif_read_data(gif_ptr, &data_size_ptr, 1) == NULL) {
+ gif_ptr->skip_size = skip_size_org;
+ if (gif_pt_ptr != NULL) {
+ if (gif_pt_ptr->gce_ptr != NULL) {
+ FX_Free(gif_pt_ptr->gce_ptr);
+ }
+ if (gif_pt_ptr->pte_ptr != NULL) {
+ FX_Free(gif_pt_ptr->pte_ptr);
}
- break;
+ if (gif_pt_ptr->string_ptr != NULL) {
+ delete gif_pt_ptr->string_ptr;
+ }
+ FX_Free(gif_pt_ptr);
+ }
+ return 2;
+ }
+ *(gif_pt_ptr->string_ptr) +=
+ CFX_ByteString((const FX_CHAR*)data_ptr, data_size);
+ }
+ gif_ptr->pt_ptr_arr_ptr->Add(gif_pt_ptr);
+ } break;
#endif
#ifdef GIF_SUPPORT_GRAPHIC_CONTROL_EXTENSION
- case GIF_D_STATUS_EXT_GCE: {
- ASSERT(sizeof(GifGCE) == 5);
- GifGCE* gif_gce_ptr = NULL;
- if(_gif_read_data(gif_ptr, (uint8_t**)&gif_gce_ptr, 6) == NULL) {
- return 2;
- }
- if(gif_ptr->gce_ptr == NULL) {
- gif_ptr->gce_ptr = (GifGCE*)FX_Alloc(uint8_t, sizeof(GifGCE));
- GIF_PTR_NOT_NULL(gif_ptr->gce_ptr, gif_ptr);
- }
- gif_ptr->gce_ptr->block_size = gif_gce_ptr->block_size;
- gif_ptr->gce_ptr->gce_flag = gif_gce_ptr->gce_flag;
- gif_ptr->gce_ptr->delay_time = _GetWord_LSBFirst((uint8_t*)&gif_gce_ptr->delay_time);
- gif_ptr->gce_ptr->trans_index = gif_gce_ptr->trans_index;
- }
- break;
+ case GIF_D_STATUS_EXT_GCE: {
+ ASSERT(sizeof(GifGCE) == 5);
+ GifGCE* gif_gce_ptr = NULL;
+ if (_gif_read_data(gif_ptr, (uint8_t**)&gif_gce_ptr, 6) == NULL) {
+ return 2;
+ }
+ if (gif_ptr->gce_ptr == NULL) {
+ gif_ptr->gce_ptr = (GifGCE*)FX_Alloc(uint8_t, sizeof(GifGCE));
+ GIF_PTR_NOT_NULL(gif_ptr->gce_ptr, gif_ptr);
+ }
+ gif_ptr->gce_ptr->block_size = gif_gce_ptr->block_size;
+ gif_ptr->gce_ptr->gce_flag = gif_gce_ptr->gce_flag;
+ gif_ptr->gce_ptr->delay_time =
+ _GetWord_LSBFirst((uint8_t*)&gif_gce_ptr->delay_time);
+ gif_ptr->gce_ptr->trans_index = gif_gce_ptr->trans_index;
+ } break;
#endif
- default: {
+ default: {
#ifndef GIF_SUPPORT_PLAIN_TEXT_EXTENSION
- if(gif_ptr->decode_status == GIF_D_STATUS_EXT_PTE) {
+ if (gif_ptr->decode_status == GIF_D_STATUS_EXT_PTE) {
#ifdef GIF_SUPPORT_GRAPHIC_CONTROL_EXTENSION
- if(gif_ptr->gce_ptr != NULL) {
- FX_Free(gif_ptr->gce_ptr);
- gif_ptr->gce_ptr = NULL;
- }
+ if (gif_ptr->gce_ptr != NULL) {
+ FX_Free(gif_ptr->gce_ptr);
+ gif_ptr->gce_ptr = NULL;
+ }
#endif
- }
+ }
#endif
- if(_gif_read_data(gif_ptr, &data_size_ptr, 1) == NULL) {
- return 2;
- }
- while(*data_size_ptr != GIF_BLOCK_TERMINAL) {
- if(_gif_read_data(gif_ptr, &data_ptr, *data_size_ptr) == NULL ||
- _gif_read_data(gif_ptr, &data_size_ptr, 1) == NULL ) {
- gif_ptr->skip_size = skip_size_org;
- return 2;
- }
- }
- }
+ if (_gif_read_data(gif_ptr, &data_size_ptr, 1) == NULL) {
+ return 2;
+ }
+ while (*data_size_ptr != GIF_BLOCK_TERMINAL) {
+ if (_gif_read_data(gif_ptr, &data_ptr, *data_size_ptr) == NULL ||
+ _gif_read_data(gif_ptr, &data_size_ptr, 1) == NULL) {
+ gif_ptr->skip_size = skip_size_org;
+ return 2;
+ }
+ }
}
- _gif_save_decoding_status(gif_ptr, GIF_D_STATUS_SIG);
- return 1;
+ }
+ _gif_save_decoding_status(gif_ptr, GIF_D_STATUS_SIG);
+ return 1;
}
-int32_t _gif_decode_image_info(gif_decompress_struct_p gif_ptr)
-{
- if(gif_ptr->width == 0 || gif_ptr->height == 0) {
- _gif_error(gif_ptr, "No Image Header Info");
+int32_t _gif_decode_image_info(gif_decompress_struct_p gif_ptr) {
+ if (gif_ptr->width == 0 || gif_ptr->height == 0) {
+ _gif_error(gif_ptr, "No Image Header Info");
+ return 0;
+ }
+ FX_DWORD skip_size_org = gif_ptr->skip_size;
+ ASSERT(sizeof(GifImageInfo) == 9);
+ GifImageInfo* gif_img_info_ptr = NULL;
+ if (_gif_read_data(gif_ptr, (uint8_t**)&gif_img_info_ptr, 9) == NULL) {
+ return 2;
+ }
+ GifImage* gif_image_ptr = (GifImage*)FX_Alloc(uint8_t, sizeof(GifImage));
+ GIF_PTR_NOT_NULL(gif_image_ptr, gif_ptr);
+ FXSYS_memset(gif_image_ptr, 0, sizeof(GifImage));
+ gif_image_ptr->image_info_ptr =
+ (GifImageInfo*)FX_Alloc(uint8_t, sizeof(GifImageInfo));
+ GIF_PTR_NOT_NULL(gif_image_ptr->image_info_ptr, gif_ptr);
+ gif_image_ptr->image_info_ptr->left =
+ _GetWord_LSBFirst((uint8_t*)&gif_img_info_ptr->left);
+ gif_image_ptr->image_info_ptr->top =
+ _GetWord_LSBFirst((uint8_t*)&gif_img_info_ptr->top);
+ gif_image_ptr->image_info_ptr->width =
+ _GetWord_LSBFirst((uint8_t*)&gif_img_info_ptr->width);
+ gif_image_ptr->image_info_ptr->height =
+ _GetWord_LSBFirst((uint8_t*)&gif_img_info_ptr->height);
+ gif_image_ptr->image_info_ptr->local_flag = gif_img_info_ptr->local_flag;
+ if (gif_image_ptr->image_info_ptr->left +
+ gif_image_ptr->image_info_ptr->width >
+ gif_ptr->width ||
+ gif_image_ptr->image_info_ptr->top +
+ gif_image_ptr->image_info_ptr->height >
+ gif_ptr->height) {
+ if (gif_image_ptr->image_info_ptr != NULL) {
+ FX_Free(gif_image_ptr->image_info_ptr);
+ }
+ if (gif_image_ptr->image_row_buf != NULL) {
+ FX_Free(gif_image_ptr->image_row_buf);
+ }
+ FX_Free(gif_image_ptr);
+ _gif_error(gif_ptr, "Image Data Out Of LSD, The File May Be Corrupt");
+ return 0;
+ }
+ GifLF* gif_img_info_lf_ptr = (GifLF*)&gif_img_info_ptr->local_flag;
+ if (gif_img_info_lf_ptr->local_pal) {
+ ASSERT(sizeof(GifPalette) == 3);
+ int32_t loc_pal_size = (2 << gif_img_info_lf_ptr->pal_bits) * 3;
+ uint8_t* loc_pal_ptr = NULL;
+ if (_gif_read_data(gif_ptr, &loc_pal_ptr, loc_pal_size) == NULL) {
+ gif_ptr->skip_size = skip_size_org;
+ if (gif_image_ptr->image_info_ptr != NULL) {
+ FX_Free(gif_image_ptr->image_info_ptr);
+ }
+ if (gif_image_ptr->image_row_buf != NULL) {
+ FX_Free(gif_image_ptr->image_row_buf);
+ }
+ FX_Free(gif_image_ptr);
+ return 2;
+ }
+ gif_image_ptr->local_pal_ptr =
+ (GifPalette*)gif_ptr->_gif_ask_buf_for_pal_fn(gif_ptr, loc_pal_size);
+ if (gif_image_ptr->local_pal_ptr != NULL) {
+ FXSYS_memcpy((uint8_t*)gif_image_ptr->local_pal_ptr, loc_pal_ptr,
+ loc_pal_size);
+ }
+ }
+ uint8_t* code_size_ptr = NULL;
+ if (_gif_read_data(gif_ptr, &code_size_ptr, 1) == NULL) {
+ gif_ptr->skip_size = skip_size_org;
+ if (gif_image_ptr->image_info_ptr != NULL) {
+ FX_Free(gif_image_ptr->image_info_ptr);
+ }
+ if (gif_image_ptr->local_pal_ptr != NULL) {
+ FX_Free(gif_image_ptr->local_pal_ptr);
+ }
+ if (gif_image_ptr->image_row_buf != NULL) {
+ FX_Free(gif_image_ptr->image_row_buf);
+ }
+ FX_Free(gif_image_ptr);
+ return 2;
+ }
+ gif_image_ptr->image_code_size = *code_size_ptr;
+ gif_ptr->_gif_record_current_position_fn(gif_ptr,
+ &gif_image_ptr->image_data_pos);
+ gif_image_ptr->image_data_pos += gif_ptr->skip_size;
+ _gif_takeover_gce_ptr(gif_ptr, &gif_image_ptr->image_gce_ptr);
+ gif_ptr->img_ptr_arr_ptr->Add(gif_image_ptr);
+ _gif_save_decoding_status(gif_ptr, GIF_D_STATUS_IMG_DATA);
+ return 1;
+}
+int32_t _gif_load_frame(gif_decompress_struct_p gif_ptr, int32_t frame_num) {
+ if (gif_ptr == NULL || frame_num < 0 ||
+ frame_num >= gif_ptr->img_ptr_arr_ptr->GetSize()) {
+ return 0;
+ }
+ uint8_t* data_size_ptr = NULL;
+ uint8_t* data_ptr = NULL;
+ FX_DWORD skip_size_org = gif_ptr->skip_size;
+ GifImage* gif_image_ptr = gif_ptr->img_ptr_arr_ptr->GetAt(frame_num);
+ FX_DWORD gif_img_row_bytes = gif_image_ptr->image_info_ptr->width;
+ if (gif_ptr->decode_status == GIF_D_STATUS_TAIL) {
+ if (gif_image_ptr->image_row_buf) {
+ FX_Free(gif_image_ptr->image_row_buf);
+ gif_image_ptr->image_row_buf = NULL;
+ }
+ gif_image_ptr->image_row_buf = FX_Alloc(uint8_t, gif_img_row_bytes);
+ GIF_PTR_NOT_NULL(gif_image_ptr->image_row_buf, gif_ptr);
+ GifGCE* gif_img_gce_ptr = gif_image_ptr->image_gce_ptr;
+ int32_t loc_pal_num =
+ ((GifLF*)&gif_image_ptr->image_info_ptr->local_flag)->local_pal
+ ? (2 << ((GifLF*)&gif_image_ptr->image_info_ptr->local_flag)
+ ->pal_bits)
+ : 0;
+ gif_ptr->avail_in = 0;
+ if (gif_img_gce_ptr == NULL) {
+ FX_BOOL bRes = gif_ptr->_gif_get_record_position_fn(
+ gif_ptr, gif_image_ptr->image_data_pos,
+ gif_image_ptr->image_info_ptr->left,
+ gif_image_ptr->image_info_ptr->top,
+ gif_image_ptr->image_info_ptr->width,
+ gif_image_ptr->image_info_ptr->height, loc_pal_num,
+ gif_image_ptr->local_pal_ptr, 0, 0, -1, 0,
+ (FX_BOOL)((GifLF*)&gif_image_ptr->image_info_ptr->local_flag)
+ ->interlace);
+ if (!bRes) {
+ FX_Free(gif_image_ptr->image_row_buf);
+ gif_image_ptr->image_row_buf = NULL;
+ _gif_error(gif_ptr, "Error Read Record Position Data");
return 0;
- }
- FX_DWORD skip_size_org = gif_ptr->skip_size;
- ASSERT(sizeof(GifImageInfo) == 9);
- GifImageInfo* gif_img_info_ptr = NULL;
- if(_gif_read_data(gif_ptr, (uint8_t**)&gif_img_info_ptr, 9) == NULL) {
- return 2;
- }
- GifImage* gif_image_ptr = (GifImage*)FX_Alloc(uint8_t, sizeof(GifImage));
- GIF_PTR_NOT_NULL(gif_image_ptr, gif_ptr);
- FXSYS_memset(gif_image_ptr, 0, sizeof(GifImage));
- gif_image_ptr->image_info_ptr = (GifImageInfo*)FX_Alloc(uint8_t, sizeof(GifImageInfo));
- GIF_PTR_NOT_NULL(gif_image_ptr->image_info_ptr, gif_ptr);
- gif_image_ptr->image_info_ptr->left = _GetWord_LSBFirst((uint8_t*)&gif_img_info_ptr->left);
- gif_image_ptr->image_info_ptr->top = _GetWord_LSBFirst((uint8_t*)&gif_img_info_ptr->top);
- gif_image_ptr->image_info_ptr->width = _GetWord_LSBFirst((uint8_t*)&gif_img_info_ptr->width);
- gif_image_ptr->image_info_ptr->height = _GetWord_LSBFirst((uint8_t*)&gif_img_info_ptr->height);
- gif_image_ptr->image_info_ptr->local_flag = gif_img_info_ptr->local_flag;
- if(gif_image_ptr->image_info_ptr->left + gif_image_ptr->image_info_ptr->width > gif_ptr->width ||
- gif_image_ptr->image_info_ptr->top + gif_image_ptr->image_info_ptr->height > gif_ptr->height) {
- if(gif_image_ptr->image_info_ptr != NULL) {
- FX_Free(gif_image_ptr->image_info_ptr);
- }
- if(gif_image_ptr->image_row_buf != NULL) {
- FX_Free(gif_image_ptr->image_row_buf);
- }
- FX_Free(gif_image_ptr);
- _gif_error(gif_ptr, "Image Data Out Of LSD, The File May Be Corrupt");
+ }
+ } else {
+ FX_BOOL bRes = gif_ptr->_gif_get_record_position_fn(
+ gif_ptr, gif_image_ptr->image_data_pos,
+ gif_image_ptr->image_info_ptr->left,
+ gif_image_ptr->image_info_ptr->top,
+ gif_image_ptr->image_info_ptr->width,
+ gif_image_ptr->image_info_ptr->height, loc_pal_num,
+ gif_image_ptr->local_pal_ptr,
+ (int32_t)gif_image_ptr->image_gce_ptr->delay_time,
+ (FX_BOOL)((GifCEF*)&gif_image_ptr->image_gce_ptr->gce_flag)
+ ->user_input,
+ ((GifCEF*)&gif_image_ptr->image_gce_ptr->gce_flag)->transparency
+ ? (int32_t)gif_image_ptr->image_gce_ptr->trans_index
+ : -1,
+ (int32_t)((GifCEF*)&gif_image_ptr->image_gce_ptr->gce_flag)
+ ->disposal_method,
+ (FX_BOOL)((GifLF*)&gif_image_ptr->image_info_ptr->local_flag)
+ ->interlace);
+ if (!bRes) {
+ FX_Free(gif_image_ptr->image_row_buf);
+ gif_image_ptr->image_row_buf = NULL;
+ _gif_error(gif_ptr, "Error Read Record Position Data");
return 0;
+ }
}
- GifLF* gif_img_info_lf_ptr = (GifLF*)&gif_img_info_ptr->local_flag;
- if(gif_img_info_lf_ptr->local_pal) {
- ASSERT(sizeof(GifPalette) == 3);
- int32_t loc_pal_size = (2 << gif_img_info_lf_ptr->pal_bits) * 3;
- uint8_t* loc_pal_ptr = NULL;
- if(_gif_read_data(gif_ptr, &loc_pal_ptr, loc_pal_size) == NULL) {
- gif_ptr->skip_size = skip_size_org;
- if(gif_image_ptr->image_info_ptr != NULL) {
- FX_Free(gif_image_ptr->image_info_ptr);
- }
- if(gif_image_ptr->image_row_buf != NULL) {
- FX_Free(gif_image_ptr->image_row_buf);
- }
- FX_Free(gif_image_ptr);
- return 2;
- }
- gif_image_ptr->local_pal_ptr = (GifPalette*)gif_ptr->_gif_ask_buf_for_pal_fn(gif_ptr, loc_pal_size);
- if(gif_image_ptr->local_pal_ptr != NULL) {
- FXSYS_memcpy((uint8_t*)gif_image_ptr->local_pal_ptr, loc_pal_ptr, loc_pal_size);
- }
+ if (gif_ptr->img_decoder_ptr == NULL) {
+ gif_ptr->img_decoder_ptr = new CGifLZWDecoder(gif_ptr->err_ptr);
+ GIF_PTR_NOT_NULL(gif_ptr->img_decoder_ptr, gif_ptr);
}
- uint8_t* code_size_ptr = NULL;
- if(_gif_read_data(gif_ptr, &code_size_ptr, 1) == NULL) {
+ gif_ptr->img_decoder_ptr->InitTable(gif_image_ptr->image_code_size);
+ gif_ptr->img_row_offset = 0;
+ gif_ptr->img_row_avail_size = 0;
+ gif_ptr->img_pass_num = 0;
+ gif_image_ptr->image_row_num = 0;
+ _gif_save_decoding_status(gif_ptr, GIF_D_STATUS_IMG_DATA);
+ }
+ CGifLZWDecoder* img_decoder_ptr = gif_ptr->img_decoder_ptr;
+ if (gif_ptr->decode_status == GIF_D_STATUS_IMG_DATA) {
+ if (_gif_read_data(gif_ptr, &data_size_ptr, 1) == NULL) {
+ return 2;
+ }
+ if (*data_size_ptr != GIF_BLOCK_TERMINAL) {
+ if (_gif_read_data(gif_ptr, &data_ptr, *data_size_ptr) == NULL) {
gif_ptr->skip_size = skip_size_org;
- if(gif_image_ptr->image_info_ptr != NULL) {
- FX_Free(gif_image_ptr->image_info_ptr);
- }
- if(gif_image_ptr->local_pal_ptr != NULL) {
- FX_Free(gif_image_ptr->local_pal_ptr);
- }
- if(gif_image_ptr->image_row_buf != NULL) {
- FX_Free(gif_image_ptr->image_row_buf);
- }
- FX_Free(gif_image_ptr);
return 2;
- }
- gif_image_ptr->image_code_size = *code_size_ptr;
- gif_ptr->_gif_record_current_position_fn(gif_ptr, &gif_image_ptr->image_data_pos);
- gif_image_ptr->image_data_pos += gif_ptr->skip_size;
- _gif_takeover_gce_ptr(gif_ptr, &gif_image_ptr->image_gce_ptr);
- gif_ptr->img_ptr_arr_ptr->Add(gif_image_ptr);
- _gif_save_decoding_status(gif_ptr, GIF_D_STATUS_IMG_DATA);
- return 1;
-}
-int32_t _gif_load_frame(gif_decompress_struct_p gif_ptr, int32_t frame_num)
-{
- if(gif_ptr == NULL ||
- frame_num < 0 ||
- frame_num >= gif_ptr->img_ptr_arr_ptr->GetSize()
- ) {
+ }
+ img_decoder_ptr->Input(data_ptr, *data_size_ptr);
+ _gif_save_decoding_status(gif_ptr, GIF_D_STATUS_IMG_DATA);
+ gif_ptr->img_row_offset += gif_ptr->img_row_avail_size;
+ gif_ptr->img_row_avail_size = gif_img_row_bytes - gif_ptr->img_row_offset;
+ int32_t ret = img_decoder_ptr->Decode(
+ gif_image_ptr->image_row_buf + gif_ptr->img_row_offset,
+ gif_ptr->img_row_avail_size);
+ if (ret == 0) {
+ FX_Free(gif_image_ptr->image_row_buf);
+ gif_image_ptr->image_row_buf = NULL;
+ _gif_save_decoding_status(gif_ptr, GIF_D_STATUS_TAIL);
+ _gif_error(gif_ptr, "Decode Image Data Error");
return 0;
- }
- uint8_t* data_size_ptr = NULL;
- uint8_t* data_ptr = NULL;
- FX_DWORD skip_size_org = gif_ptr->skip_size;
- GifImage* gif_image_ptr = gif_ptr->img_ptr_arr_ptr->GetAt(frame_num);
- FX_DWORD gif_img_row_bytes = gif_image_ptr->image_info_ptr->width;
- if(gif_ptr->decode_status == GIF_D_STATUS_TAIL) {
- if(gif_image_ptr->image_row_buf) {
- FX_Free(gif_image_ptr->image_row_buf);
- gif_image_ptr->image_row_buf = NULL;
- }
- gif_image_ptr->image_row_buf = FX_Alloc(uint8_t, gif_img_row_bytes);
- GIF_PTR_NOT_NULL(gif_image_ptr->image_row_buf, gif_ptr);
- GifGCE* gif_img_gce_ptr = gif_image_ptr->image_gce_ptr;
- int32_t loc_pal_num = ((GifLF*)&gif_image_ptr->image_info_ptr->local_flag)->local_pal ?
- (2 << ((GifLF*)&gif_image_ptr->image_info_ptr->local_flag)->pal_bits) : 0;
- gif_ptr->avail_in = 0;
- if(gif_img_gce_ptr == NULL) {
- FX_BOOL bRes = gif_ptr->_gif_get_record_position_fn(gif_ptr, gif_image_ptr->image_data_pos,
- gif_image_ptr->image_info_ptr->left,
- gif_image_ptr->image_info_ptr->top,
- gif_image_ptr->image_info_ptr->width,
- gif_image_ptr->image_info_ptr->height,
- loc_pal_num, gif_image_ptr->local_pal_ptr,
- 0, 0, -1, 0,
- (FX_BOOL)((GifLF*)&gif_image_ptr->image_info_ptr->local_flag)->interlace
- );
- if(!bRes) {
- FX_Free(gif_image_ptr->image_row_buf);
- gif_image_ptr->image_row_buf = NULL;
- _gif_error(gif_ptr, "Error Read Record Position Data");
- return 0;
- }
- } else {
- FX_BOOL bRes = gif_ptr->_gif_get_record_position_fn(gif_ptr, gif_image_ptr->image_data_pos,
- gif_image_ptr->image_info_ptr->left,
- gif_image_ptr->image_info_ptr->top,
- gif_image_ptr->image_info_ptr->width,
- gif_image_ptr->image_info_ptr->height,
- loc_pal_num, gif_image_ptr->local_pal_ptr,
- (int32_t)gif_image_ptr->image_gce_ptr->delay_time,
- (FX_BOOL)((GifCEF*)&gif_image_ptr->image_gce_ptr->gce_flag)->user_input,
- ((GifCEF*)&gif_image_ptr->image_gce_ptr->gce_flag)->transparency ?
- (int32_t)gif_image_ptr->image_gce_ptr->trans_index : -1,
- (int32_t)((GifCEF*)&gif_image_ptr->image_gce_ptr->gce_flag)->disposal_method,
- (FX_BOOL)((GifLF*)&gif_image_ptr->image_info_ptr->local_flag)->interlace
- );
- if(!bRes) {
- FX_Free(gif_image_ptr->image_row_buf);
- gif_image_ptr->image_row_buf = NULL;
- _gif_error(gif_ptr, "Error Read Record Position Data");
- return 0;
- }
+ }
+ while (ret != 0) {
+ if (ret == 1) {
+ gif_ptr->_gif_get_row_fn(gif_ptr, gif_image_ptr->image_row_num,
+ gif_image_ptr->image_row_buf);
+ FX_Free(gif_image_ptr->image_row_buf);
+ gif_image_ptr->image_row_buf = NULL;
+ _gif_save_decoding_status(gif_ptr, GIF_D_STATUS_TAIL);
+ return 1;
}
- if(gif_ptr->img_decoder_ptr == NULL) {
- gif_ptr->img_decoder_ptr = new CGifLZWDecoder(gif_ptr->err_ptr);
- GIF_PTR_NOT_NULL(gif_ptr->img_decoder_ptr, gif_ptr);
- }
- gif_ptr->img_decoder_ptr->InitTable(gif_image_ptr->image_code_size);
- gif_ptr->img_row_offset = 0;
- gif_ptr->img_row_avail_size = 0;
- gif_ptr->img_pass_num = 0;
- gif_image_ptr->image_row_num = 0;
- _gif_save_decoding_status(gif_ptr, GIF_D_STATUS_IMG_DATA);
- }
- CGifLZWDecoder* img_decoder_ptr = gif_ptr->img_decoder_ptr;
- if(gif_ptr->decode_status == GIF_D_STATUS_IMG_DATA) {
- if(_gif_read_data(gif_ptr, &data_size_ptr, 1) == NULL) {
+ if (ret == 2) {
+ ASSERT(img_decoder_ptr->GetAvailInput() == 0);
+ skip_size_org = gif_ptr->skip_size;
+ if (_gif_read_data(gif_ptr, &data_size_ptr, 1) == NULL) {
return 2;
- }
- if(*data_size_ptr != GIF_BLOCK_TERMINAL) {
- if(_gif_read_data(gif_ptr, &data_ptr, *data_size_ptr) == NULL) {
- gif_ptr->skip_size = skip_size_org;
- return 2;
+ }
+ if (*data_size_ptr != GIF_BLOCK_TERMINAL) {
+ if (_gif_read_data(gif_ptr, &data_ptr, *data_size_ptr) == NULL) {
+ gif_ptr->skip_size = skip_size_org;
+ return 2;
}
img_decoder_ptr->Input(data_ptr, *data_size_ptr);
_gif_save_decoding_status(gif_ptr, GIF_D_STATUS_IMG_DATA);
gif_ptr->img_row_offset += gif_ptr->img_row_avail_size;
- gif_ptr->img_row_avail_size = gif_img_row_bytes - gif_ptr->img_row_offset;
- int32_t ret = img_decoder_ptr->Decode(gif_image_ptr->image_row_buf + gif_ptr->img_row_offset, gif_ptr->img_row_avail_size);
- if(ret == 0) {
- FX_Free(gif_image_ptr->image_row_buf);
- gif_image_ptr->image_row_buf = NULL;
- _gif_save_decoding_status(gif_ptr, GIF_D_STATUS_TAIL);
- _gif_error(gif_ptr, "Decode Image Data Error");
- return 0;
- }
- while (ret != 0) {
- if(ret == 1) {
- gif_ptr->_gif_get_row_fn(gif_ptr, gif_image_ptr->image_row_num, gif_image_ptr->image_row_buf);
- FX_Free(gif_image_ptr->image_row_buf);
- gif_image_ptr->image_row_buf = NULL;
- _gif_save_decoding_status(gif_ptr, GIF_D_STATUS_TAIL);
- return 1;
- }
- if(ret == 2) {
- ASSERT(img_decoder_ptr->GetAvailInput() == 0);
- skip_size_org = gif_ptr->skip_size;
- if(_gif_read_data(gif_ptr, &data_size_ptr, 1) == NULL) {
- return 2;
- }
- if (*data_size_ptr != GIF_BLOCK_TERMINAL) {
- if(_gif_read_data(gif_ptr, &data_ptr, *data_size_ptr) == NULL) {
- gif_ptr->skip_size = skip_size_org;
- return 2;
- }
- img_decoder_ptr->Input(data_ptr, *data_size_ptr);
- _gif_save_decoding_status(gif_ptr, GIF_D_STATUS_IMG_DATA);
- gif_ptr->img_row_offset += gif_ptr->img_row_avail_size;
- gif_ptr->img_row_avail_size = gif_img_row_bytes - gif_ptr->img_row_offset;
- ret = img_decoder_ptr->Decode(gif_image_ptr->image_row_buf + gif_ptr->img_row_offset, gif_ptr->img_row_avail_size);
- }
- }
- if(ret == 3) {
- if(((GifLF*)&gif_image_ptr->image_info_ptr->local_flag)->interlace) {
- gif_ptr->_gif_get_row_fn(gif_ptr, gif_image_ptr->image_row_num, gif_image_ptr->image_row_buf);
- gif_image_ptr->image_row_num += s_gif_interlace_step[gif_ptr->img_pass_num];
- if(gif_image_ptr->image_row_num >= (int32_t)gif_image_ptr->image_info_ptr->height) {
- gif_ptr->img_pass_num++;
- gif_image_ptr->image_row_num = s_gif_interlace_step[gif_ptr->img_pass_num] / 2;
- }
- } else {
- gif_ptr->_gif_get_row_fn(gif_ptr, gif_image_ptr->image_row_num++, gif_image_ptr->image_row_buf);
- }
- gif_ptr->img_row_offset = 0;
- gif_ptr->img_row_avail_size = gif_img_row_bytes;
- ret = img_decoder_ptr->Decode(gif_image_ptr->image_row_buf + gif_ptr->img_row_offset, gif_ptr->img_row_avail_size);
- }
- if(ret == 0) {
- FX_Free(gif_image_ptr->image_row_buf);
- gif_image_ptr->image_row_buf = NULL;
- _gif_save_decoding_status(gif_ptr, GIF_D_STATUS_TAIL);
- _gif_error(gif_ptr, "Decode Image Data Error");
- return 0;
- }
+ gif_ptr->img_row_avail_size =
+ gif_img_row_bytes - gif_ptr->img_row_offset;
+ ret = img_decoder_ptr->Decode(
+ gif_image_ptr->image_row_buf + gif_ptr->img_row_offset,
+ gif_ptr->img_row_avail_size);
+ }
+ }
+ if (ret == 3) {
+ if (((GifLF*)&gif_image_ptr->image_info_ptr->local_flag)->interlace) {
+ gif_ptr->_gif_get_row_fn(gif_ptr, gif_image_ptr->image_row_num,
+ gif_image_ptr->image_row_buf);
+ gif_image_ptr->image_row_num +=
+ s_gif_interlace_step[gif_ptr->img_pass_num];
+ if (gif_image_ptr->image_row_num >=
+ (int32_t)gif_image_ptr->image_info_ptr->height) {
+ gif_ptr->img_pass_num++;
+ gif_image_ptr->image_row_num =
+ s_gif_interlace_step[gif_ptr->img_pass_num] / 2;
}
+ } else {
+ gif_ptr->_gif_get_row_fn(gif_ptr, gif_image_ptr->image_row_num++,
+ gif_image_ptr->image_row_buf);
+ }
+ gif_ptr->img_row_offset = 0;
+ gif_ptr->img_row_avail_size = gif_img_row_bytes;
+ ret = img_decoder_ptr->Decode(
+ gif_image_ptr->image_row_buf + gif_ptr->img_row_offset,
+ gif_ptr->img_row_avail_size);
}
- _gif_save_decoding_status(gif_ptr, GIF_D_STATUS_TAIL);
+ if (ret == 0) {
+ FX_Free(gif_image_ptr->image_row_buf);
+ gif_image_ptr->image_row_buf = NULL;
+ _gif_save_decoding_status(gif_ptr, GIF_D_STATUS_TAIL);
+ _gif_error(gif_ptr, "Decode Image Data Error");
+ return 0;
+ }
+ }
}
- _gif_error(gif_ptr, "Decode Image Data Error");
- return 0;
+ _gif_save_decoding_status(gif_ptr, GIF_D_STATUS_TAIL);
+ }
+ _gif_error(gif_ptr, "Decode Image Data Error");
+ return 0;
}
-void _gif_save_decoding_status(gif_decompress_struct_p gif_ptr, int32_t status)
-{
- gif_ptr->decode_status = status;
- gif_ptr->next_in += gif_ptr->skip_size;
- gif_ptr->avail_in -= gif_ptr->skip_size;
- gif_ptr->skip_size = 0;
+void _gif_save_decoding_status(gif_decompress_struct_p gif_ptr,
+ int32_t status) {
+ gif_ptr->decode_status = status;
+ gif_ptr->next_in += gif_ptr->skip_size;
+ gif_ptr->avail_in -= gif_ptr->skip_size;
+ gif_ptr->skip_size = 0;
}
-uint8_t* _gif_read_data(gif_decompress_struct_p gif_ptr, uint8_t** des_buf_pp, FX_DWORD data_size)
-{
- if(gif_ptr == NULL ||
- gif_ptr->avail_in < gif_ptr->skip_size + data_size) {
- return NULL;
- }
- *des_buf_pp = gif_ptr->next_in + gif_ptr->skip_size;
- gif_ptr->skip_size += data_size;
- return *des_buf_pp;
+uint8_t* _gif_read_data(gif_decompress_struct_p gif_ptr,
+ uint8_t** des_buf_pp,
+ FX_DWORD data_size) {
+ if (gif_ptr == NULL || gif_ptr->avail_in < gif_ptr->skip_size + data_size) {
+ return NULL;
+ }
+ *des_buf_pp = gif_ptr->next_in + gif_ptr->skip_size;
+ gif_ptr->skip_size += data_size;
+ return *des_buf_pp;
}
-void _gif_input_buffer(gif_decompress_struct_p gif_ptr, uint8_t* src_buf, FX_DWORD src_size)
-{
- gif_ptr->next_in = src_buf;
- gif_ptr->avail_in = src_size;
- gif_ptr->skip_size = 0;
+void _gif_input_buffer(gif_decompress_struct_p gif_ptr,
+ uint8_t* src_buf,
+ FX_DWORD src_size) {
+ gif_ptr->next_in = src_buf;
+ gif_ptr->avail_in = src_size;
+ gif_ptr->skip_size = 0;
}
-FX_DWORD _gif_get_avail_input(gif_decompress_struct_p gif_ptr, uint8_t** avial_buf_ptr)
-{
- if(avial_buf_ptr != NULL) {
- *avial_buf_ptr = NULL;
- if(gif_ptr->avail_in > 0) {
- *avial_buf_ptr = gif_ptr->next_in;
- }
- }
- return gif_ptr->avail_in;
+FX_DWORD _gif_get_avail_input(gif_decompress_struct_p gif_ptr,
+ uint8_t** avial_buf_ptr) {
+ if (avial_buf_ptr != NULL) {
+ *avial_buf_ptr = NULL;
+ if (gif_ptr->avail_in > 0) {
+ *avial_buf_ptr = gif_ptr->next_in;
+ }
+ }
+ return gif_ptr->avail_in;
}
-int32_t _gif_get_frame_num(gif_decompress_struct_p gif_ptr)
-{
- return gif_ptr->img_ptr_arr_ptr->GetSize();
+int32_t _gif_get_frame_num(gif_decompress_struct_p gif_ptr) {
+ return gif_ptr->img_ptr_arr_ptr->GetSize();
}
-static FX_BOOL _gif_write_header( gif_compress_struct_p gif_ptr, uint8_t*& dst_buf, FX_DWORD& dst_len )
-{
- if (gif_ptr->cur_offset) {
- return TRUE;
- }
- dst_len = sizeof(GifHeader) + sizeof(GifLSD) + sizeof(GifGF);
- dst_buf = FX_TryAlloc(uint8_t, dst_len);
- if (dst_buf == NULL) {
- return FALSE;
- }
- FXSYS_memset(dst_buf, 0, dst_len);
- FXSYS_memcpy(dst_buf, gif_ptr->header_ptr, sizeof(GifHeader));
- gif_ptr->cur_offset += sizeof(GifHeader);
- _SetWord_LSBFirst(dst_buf + gif_ptr->cur_offset, gif_ptr->lsd_ptr->width);
- gif_ptr->cur_offset += 2;
- _SetWord_LSBFirst(dst_buf + gif_ptr->cur_offset, gif_ptr->lsd_ptr->height);
- gif_ptr->cur_offset += 2;
- dst_buf[gif_ptr->cur_offset++] = gif_ptr->lsd_ptr->global_flag;
- dst_buf[gif_ptr->cur_offset++] = gif_ptr->lsd_ptr->bc_index;
- dst_buf[gif_ptr->cur_offset++] = gif_ptr->lsd_ptr->pixel_aspect;
- if (gif_ptr->global_pal) {
- FX_WORD size = sizeof(GifPalette) * gif_ptr->gpal_num;
- if (!_gif_grow_buf(dst_buf, dst_len, gif_ptr->cur_offset + size)) {
- return FALSE;
- }
- FXSYS_memcpy(&dst_buf[gif_ptr->cur_offset], gif_ptr->global_pal, size);
- gif_ptr->cur_offset += size;
- }
+static FX_BOOL _gif_write_header(gif_compress_struct_p gif_ptr,
+ uint8_t*& dst_buf,
+ FX_DWORD& dst_len) {
+ if (gif_ptr->cur_offset) {
return TRUE;
+ }
+ dst_len = sizeof(GifHeader) + sizeof(GifLSD) + sizeof(GifGF);
+ dst_buf = FX_TryAlloc(uint8_t, dst_len);
+ if (dst_buf == NULL) {
+ return FALSE;
+ }
+ FXSYS_memset(dst_buf, 0, dst_len);
+ FXSYS_memcpy(dst_buf, gif_ptr->header_ptr, sizeof(GifHeader));
+ gif_ptr->cur_offset += sizeof(GifHeader);
+ _SetWord_LSBFirst(dst_buf + gif_ptr->cur_offset, gif_ptr->lsd_ptr->width);
+ gif_ptr->cur_offset += 2;
+ _SetWord_LSBFirst(dst_buf + gif_ptr->cur_offset, gif_ptr->lsd_ptr->height);
+ gif_ptr->cur_offset += 2;
+ dst_buf[gif_ptr->cur_offset++] = gif_ptr->lsd_ptr->global_flag;
+ dst_buf[gif_ptr->cur_offset++] = gif_ptr->lsd_ptr->bc_index;
+ dst_buf[gif_ptr->cur_offset++] = gif_ptr->lsd_ptr->pixel_aspect;
+ if (gif_ptr->global_pal) {
+ FX_WORD size = sizeof(GifPalette) * gif_ptr->gpal_num;
+ if (!_gif_grow_buf(dst_buf, dst_len, gif_ptr->cur_offset + size)) {
+ return FALSE;
+ }
+ FXSYS_memcpy(&dst_buf[gif_ptr->cur_offset], gif_ptr->global_pal, size);
+ gif_ptr->cur_offset += size;
+ }
+ return TRUE;
}
-void interlace_buf(const uint8_t* buf, FX_DWORD pitch, FX_DWORD height)
-{
- CFX_ArrayTemplate<uint8_t*> pass[4];
- int i, j;
- FX_DWORD row;
- row = 0;
- uint8_t* temp;
- while (row < height) {
- if (row % 8 == 0) {
- j = 0;
- } else if (row % 4 == 0) {
- j = 1;
- } else if (row % 2 == 0) {
- j = 2;
- } else {
- j = 3;
- }
- temp = FX_Alloc(uint8_t, pitch);
- if (temp == NULL) {
- return;
- }
- FXSYS_memcpy(temp, &buf[pitch * row], pitch);
- pass[j].Add(temp);
- row ++;
- }
- for (i = 0, row = 0; i < 4; i++) {
- for (j = 0; j < pass[i].GetSize(); j++, row++) {
- FXSYS_memcpy((uint8_t*)&buf[pitch * row], pass[i].GetAt(j), pitch);
- FX_Free(pass[i].GetAt(j));
- }
- }
+void interlace_buf(const uint8_t* buf, FX_DWORD pitch, FX_DWORD height) {
+ CFX_ArrayTemplate<uint8_t*> pass[4];
+ int i, j;
+ FX_DWORD row;
+ row = 0;
+ uint8_t* temp;
+ while (row < height) {
+ if (row % 8 == 0) {
+ j = 0;
+ } else if (row % 4 == 0) {
+ j = 1;
+ } else if (row % 2 == 0) {
+ j = 2;
+ } else {
+ j = 3;
+ }
+ temp = FX_Alloc(uint8_t, pitch);
+ if (temp == NULL) {
+ return;
+ }
+ FXSYS_memcpy(temp, &buf[pitch * row], pitch);
+ pass[j].Add(temp);
+ row++;
+ }
+ for (i = 0, row = 0; i < 4; i++) {
+ for (j = 0; j < pass[i].GetSize(); j++, row++) {
+ FXSYS_memcpy((uint8_t*)&buf[pitch * row], pass[i].GetAt(j), pitch);
+ FX_Free(pass[i].GetAt(j));
+ }
+ }
}
-static void _gif_write_block_data(const uint8_t* src_buf, FX_DWORD src_len, uint8_t*& dst_buf, FX_DWORD& dst_len, FX_DWORD& dst_offset)
-{
- FX_DWORD src_offset = 0;
- while (src_len > GIF_DATA_BLOCK) {
- dst_buf[dst_offset++] = GIF_DATA_BLOCK;
- FXSYS_memcpy(&dst_buf[dst_offset], &src_buf[src_offset], GIF_DATA_BLOCK);
- dst_offset += GIF_DATA_BLOCK;
- src_offset += GIF_DATA_BLOCK;
- src_len -= GIF_DATA_BLOCK;
- }
- dst_buf[dst_offset++] = (uint8_t)src_len;
- FXSYS_memcpy(&dst_buf[dst_offset], &src_buf[src_offset], src_len);
- dst_offset += src_len;
+static void _gif_write_block_data(const uint8_t* src_buf,
+ FX_DWORD src_len,
+ uint8_t*& dst_buf,
+ FX_DWORD& dst_len,
+ FX_DWORD& dst_offset) {
+ FX_DWORD src_offset = 0;
+ while (src_len > GIF_DATA_BLOCK) {
+ dst_buf[dst_offset++] = GIF_DATA_BLOCK;
+ FXSYS_memcpy(&dst_buf[dst_offset], &src_buf[src_offset], GIF_DATA_BLOCK);
+ dst_offset += GIF_DATA_BLOCK;
+ src_offset += GIF_DATA_BLOCK;
+ src_len -= GIF_DATA_BLOCK;
+ }
+ dst_buf[dst_offset++] = (uint8_t)src_len;
+ FXSYS_memcpy(&dst_buf[dst_offset], &src_buf[src_offset], src_len);
+ dst_offset += src_len;
}
-static FX_BOOL _gif_write_data( gif_compress_struct_p gif_ptr, uint8_t*& dst_buf, FX_DWORD& dst_len )
-{
- if (!_gif_grow_buf(dst_buf, dst_len, gif_ptr->cur_offset + GIF_DATA_BLOCK)) {
- return FALSE;
- }
+static FX_BOOL _gif_write_data(gif_compress_struct_p gif_ptr,
+ uint8_t*& dst_buf,
+ FX_DWORD& dst_len) {
+ if (!_gif_grow_buf(dst_buf, dst_len, gif_ptr->cur_offset + GIF_DATA_BLOCK)) {
+ return FALSE;
+ }
#ifdef GIF_SUPPORT_GRAPHIC_CONTROL_EXTENSION
- if (FXSYS_memcmp(gif_ptr->header_ptr->version, "89a", 3) == 0) {
- dst_buf[gif_ptr->cur_offset++] = GIF_SIG_EXTENSION;
- dst_buf[gif_ptr->cur_offset++] = GIF_BLOCK_GCE;
- gif_ptr->gce_ptr->block_size = 4;
- dst_buf[gif_ptr->cur_offset++] = gif_ptr->gce_ptr->block_size;
- gif_ptr->gce_ptr->gce_flag = 0;
- dst_buf[gif_ptr->cur_offset++] = gif_ptr->gce_ptr->gce_flag;
- gif_ptr->gce_ptr->delay_time = 10;
- _SetWord_LSBFirst(dst_buf + gif_ptr->cur_offset, gif_ptr->gce_ptr->delay_time);
- gif_ptr->cur_offset += 2;
- gif_ptr->gce_ptr->trans_index = 0;
- dst_buf[gif_ptr->cur_offset++] = gif_ptr->gce_ptr->trans_index;
- dst_buf[gif_ptr->cur_offset++] = 0;
- }
+ if (FXSYS_memcmp(gif_ptr->header_ptr->version, "89a", 3) == 0) {
+ dst_buf[gif_ptr->cur_offset++] = GIF_SIG_EXTENSION;
+ dst_buf[gif_ptr->cur_offset++] = GIF_BLOCK_GCE;
+ gif_ptr->gce_ptr->block_size = 4;
+ dst_buf[gif_ptr->cur_offset++] = gif_ptr->gce_ptr->block_size;
+ gif_ptr->gce_ptr->gce_flag = 0;
+ dst_buf[gif_ptr->cur_offset++] = gif_ptr->gce_ptr->gce_flag;
+ gif_ptr->gce_ptr->delay_time = 10;
+ _SetWord_LSBFirst(dst_buf + gif_ptr->cur_offset,
+ gif_ptr->gce_ptr->delay_time);
+ gif_ptr->cur_offset += 2;
+ gif_ptr->gce_ptr->trans_index = 0;
+ dst_buf[gif_ptr->cur_offset++] = gif_ptr->gce_ptr->trans_index;
+ dst_buf[gif_ptr->cur_offset++] = 0;
+ }
+#endif
+ dst_buf[gif_ptr->cur_offset++] = GIF_SIG_IMAGE;
+ _SetWord_LSBFirst(dst_buf + gif_ptr->cur_offset,
+ gif_ptr->image_info_ptr->left);
+ gif_ptr->cur_offset += 2;
+ _SetWord_LSBFirst(dst_buf + gif_ptr->cur_offset,
+ gif_ptr->image_info_ptr->top);
+ gif_ptr->cur_offset += 2;
+ _SetWord_LSBFirst(dst_buf + gif_ptr->cur_offset,
+ gif_ptr->image_info_ptr->width);
+ gif_ptr->cur_offset += 2;
+ _SetWord_LSBFirst(dst_buf + gif_ptr->cur_offset,
+ gif_ptr->image_info_ptr->height);
+ gif_ptr->cur_offset += 2;
+ GifLF& lf = (GifLF&)gif_ptr->image_info_ptr->local_flag;
+ dst_buf[gif_ptr->cur_offset++] = gif_ptr->image_info_ptr->local_flag;
+ if (gif_ptr->local_pal) {
+ FX_DWORD pal_size = sizeof(GifPalette) * gif_ptr->lpal_num;
+ if (!_gif_grow_buf(dst_buf, dst_len, pal_size + gif_ptr->cur_offset)) {
+ return FALSE;
+ }
+ FXSYS_memcpy(&dst_buf[gif_ptr->cur_offset], gif_ptr->local_pal, pal_size);
+ gif_ptr->cur_offset += pal_size;
+ }
+ if (lf.interlace) {
+ interlace_buf(gif_ptr->src_buf, gif_ptr->src_pitch,
+ gif_ptr->image_info_ptr->height);
+ }
+ uint8_t code_bit = lf.pal_bits;
+ if (lf.local_pal == 0) {
+ GifGF& gf = (GifGF&)gif_ptr->lsd_ptr->global_flag;
+ code_bit = gf.pal_bits;
+ }
+ gif_ptr->img_encoder_ptr->Start(code_bit, gif_ptr->src_buf, dst_buf,
+ gif_ptr->cur_offset);
+ FX_DWORD i;
+ for (i = 0; i < gif_ptr->src_row; i++) {
+ if (!gif_ptr->img_encoder_ptr->Encode(
+ &gif_ptr->src_buf[i * gif_ptr->src_pitch],
+ gif_ptr->src_width * (code_bit + 1), dst_buf, dst_len,
+ gif_ptr->cur_offset)) {
+ return FALSE;
+ }
+ }
+ gif_ptr->img_encoder_ptr->Finish(dst_buf, dst_len, gif_ptr->cur_offset);
+ dst_buf[gif_ptr->cur_offset++] = 0;
+#ifdef GIF_SUPPORT_COMMENT_EXTENSION
+ if (FXSYS_memcmp(gif_ptr->header_ptr->version, "89a", 3) == 0 &&
+ gif_ptr->cmt_data_ptr) {
+ dst_buf[gif_ptr->cur_offset++] = GIF_SIG_EXTENSION;
+ dst_buf[gif_ptr->cur_offset++] = GIF_BLOCK_CE;
+ _gif_write_block_data(gif_ptr->cmt_data_ptr, gif_ptr->cmt_data_len, dst_buf,
+ dst_len, gif_ptr->cur_offset);
+ dst_buf[gif_ptr->cur_offset++] = 0;
+ }
#endif
- dst_buf[gif_ptr->cur_offset++] = GIF_SIG_IMAGE;
- _SetWord_LSBFirst(dst_buf + gif_ptr->cur_offset, gif_ptr->image_info_ptr->left);
+#ifdef GIF_SUPPORT_PLAIN_TEXT_EXTENSION
+ if (FXSYS_memcmp(gif_ptr->header_ptr->version, "89a", 3) == 0 &&
+ gif_ptr->pte_data_ptr) {
+ dst_buf[gif_ptr->cur_offset++] = GIF_SIG_EXTENSION;
+ dst_buf[gif_ptr->cur_offset++] = GIF_BLOCK_PTE;
+ dst_buf[gif_ptr->cur_offset++] = gif_ptr->pte_ptr->block_size;
+ _SetWord_LSBFirst(dst_buf + gif_ptr->cur_offset,
+ gif_ptr->pte_ptr->grid_left);
gif_ptr->cur_offset += 2;
- _SetWord_LSBFirst(dst_buf + gif_ptr->cur_offset, gif_ptr->image_info_ptr->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->image_info_ptr->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->image_info_ptr->height);
+ _SetWord_LSBFirst(dst_buf + gif_ptr->cur_offset,
+ gif_ptr->pte_ptr->grid_height);
gif_ptr->cur_offset += 2;
- GifLF& lf = (GifLF&)gif_ptr->image_info_ptr->local_flag;
- dst_buf[gif_ptr->cur_offset++] = gif_ptr->image_info_ptr->local_flag;
- if (gif_ptr->local_pal) {
- FX_DWORD pal_size = sizeof(GifPalette) * gif_ptr->lpal_num;
- if (!_gif_grow_buf(dst_buf, dst_len, pal_size + gif_ptr->cur_offset)) {
- return FALSE;
- }
- FXSYS_memcpy(&dst_buf[gif_ptr->cur_offset], gif_ptr->local_pal, pal_size);
- gif_ptr->cur_offset += pal_size;
- }
- if (lf.interlace) {
- interlace_buf(gif_ptr->src_buf, gif_ptr->src_pitch, gif_ptr->image_info_ptr->height);
- }
- uint8_t code_bit = lf.pal_bits;
- if (lf.local_pal == 0) {
- GifGF& gf = (GifGF&)gif_ptr->lsd_ptr->global_flag;
- code_bit = gf.pal_bits;
- }
- gif_ptr->img_encoder_ptr->Start(code_bit, gif_ptr->src_buf, dst_buf, gif_ptr->cur_offset);
- FX_DWORD i;
- for (i = 0; i < gif_ptr->src_row; i++) {
- if (!gif_ptr->img_encoder_ptr->Encode(&gif_ptr->src_buf[i * gif_ptr->src_pitch], gif_ptr->src_width * (code_bit + 1),
- dst_buf, dst_len, gif_ptr->cur_offset)) {
- return FALSE;
- }
- }
- gif_ptr->img_encoder_ptr->Finish(dst_buf, dst_len, gif_ptr->cur_offset);
+ _SetWord_LSBFirst(dst_buf + gif_ptr->cur_offset,
+ gif_ptr->pte_ptr->char_width);
+ gif_ptr->cur_offset += 2;
+ _SetWord_LSBFirst(dst_buf + gif_ptr->cur_offset,
+ gif_ptr->pte_ptr->char_height);
+ gif_ptr->cur_offset += 2;
+ _SetWord_LSBFirst(dst_buf + gif_ptr->cur_offset,
+ gif_ptr->pte_ptr->fc_index);
+ gif_ptr->cur_offset += 2;
+ _SetWord_LSBFirst(dst_buf + gif_ptr->cur_offset,
+ gif_ptr->pte_ptr->bc_index);
+ gif_ptr->cur_offset += 2;
+ _gif_write_block_data(gif_ptr->pte_data_ptr, gif_ptr->pte_data_len, dst_buf,
+ dst_len, gif_ptr->cur_offset);
+ gif_ptr->cur_offset += gif_ptr->pte_data_len;
dst_buf[gif_ptr->cur_offset++] = 0;
-#ifdef GIF_SUPPORT_COMMENT_EXTENSION
- if (FXSYS_memcmp(gif_ptr->header_ptr->version, "89a", 3) == 0 && gif_ptr->cmt_data_ptr) {
- dst_buf[gif_ptr->cur_offset++] = GIF_SIG_EXTENSION;
- dst_buf[gif_ptr->cur_offset++] = GIF_BLOCK_CE;
- _gif_write_block_data(gif_ptr->cmt_data_ptr, gif_ptr->cmt_data_len, dst_buf, dst_len, gif_ptr->cur_offset);
- dst_buf[gif_ptr->cur_offset++] = 0;
- }
-#endif
-#ifdef GIF_SUPPORT_PLAIN_TEXT_EXTENSION
- if (FXSYS_memcmp(gif_ptr->header_ptr->version, "89a", 3) == 0 && gif_ptr->pte_data_ptr) {
- dst_buf[gif_ptr->cur_offset++] = GIF_SIG_EXTENSION;
- dst_buf[gif_ptr->cur_offset++] = GIF_BLOCK_PTE;
- dst_buf[gif_ptr->cur_offset++] = gif_ptr->pte_ptr->block_size;
- _SetWord_LSBFirst(dst_buf + gif_ptr->cur_offset, gif_ptr->pte_ptr->grid_left);
- gif_ptr->cur_offset += 2;
- _SetWord_LSBFirst(dst_buf + gif_ptr->cur_offset, gif_ptr->pte_ptr->grid_top);
- gif_ptr->cur_offset += 2;
- _SetWord_LSBFirst(dst_buf + gif_ptr->cur_offset, gif_ptr->pte_ptr->grid_width);
- gif_ptr->cur_offset += 2;
- _SetWord_LSBFirst(dst_buf + gif_ptr->cur_offset, gif_ptr->pte_ptr->grid_height);
- gif_ptr->cur_offset += 2;
- _SetWord_LSBFirst(dst_buf + gif_ptr->cur_offset, gif_ptr->pte_ptr->char_width);
- gif_ptr->cur_offset += 2;
- _SetWord_LSBFirst(dst_buf + gif_ptr->cur_offset, gif_ptr->pte_ptr->char_height);
- gif_ptr->cur_offset += 2;
- _SetWord_LSBFirst(dst_buf + gif_ptr->cur_offset, gif_ptr->pte_ptr->fc_index);
- gif_ptr->cur_offset += 2;
- _SetWord_LSBFirst(dst_buf + gif_ptr->cur_offset, gif_ptr->pte_ptr->bc_index);
- gif_ptr->cur_offset += 2;
- _gif_write_block_data(gif_ptr->pte_data_ptr, gif_ptr->pte_data_len, dst_buf, dst_len, gif_ptr->cur_offset);
- gif_ptr->cur_offset += gif_ptr->pte_data_len;
- dst_buf[gif_ptr->cur_offset++] = 0;
- }
+ }
#endif
#ifdef GIF_SUPPORT_APPLICATION_EXTENSION
- if (FXSYS_memcmp(gif_ptr->header_ptr->version, "89a", 3) == 0 && gif_ptr->app_data) {
- dst_buf[gif_ptr->cur_offset++] = GIF_SIG_EXTENSION;
- dst_buf[gif_ptr->cur_offset++] = GIF_BLOCK_AE;
- dst_buf[gif_ptr->cur_offset++] = 11;
- FXSYS_memcpy(&dst_buf[gif_ptr->cur_offset], gif_ptr->app_identify, 8);
- gif_ptr->cur_offset += 8;
- FXSYS_memcpy(&dst_buf[gif_ptr->cur_offset], gif_ptr->app_authentication, 8);
- gif_ptr->cur_offset += 3;
- FXSYS_memcpy(&dst_buf[gif_ptr->cur_offset], gif_ptr->app_data, gif_ptr->app_data_size);
- gif_ptr->cur_offset += gif_ptr->app_data_size;
- dst_buf[gif_ptr->cur_offset++] = 0;
- }
+ 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;
+ dst_buf[gif_ptr->cur_offset++] = GIF_SIG_TRAILER;
+ return TRUE;
}
-FX_BOOL _gif_encode( gif_compress_struct_p gif_ptr, uint8_t*& dst_buf, FX_DWORD& dst_len )
-{
- if (!_gif_write_header(gif_ptr, dst_buf, dst_len)) {
- return FALSE;
- }
- FX_DWORD cur_offset = gif_ptr->cur_offset;
- FX_BOOL res = TRUE;
- if (gif_ptr->frames) {
- gif_ptr->cur_offset--;
- }
- if (!_gif_write_data(gif_ptr, dst_buf, dst_len)) {
- gif_ptr->cur_offset = cur_offset;
- res = FALSE;
- }
- dst_len = gif_ptr->cur_offset;
- dst_buf[dst_len - 1] = GIF_SIG_TRAILER;
- if (res) {
- gif_ptr->frames++;
- }
- return res;
+FX_BOOL _gif_encode(gif_compress_struct_p gif_ptr,
+ uint8_t*& dst_buf,
+ FX_DWORD& dst_len) {
+ if (!_gif_write_header(gif_ptr, dst_buf, dst_len)) {
+ return FALSE;
+ }
+ FX_DWORD cur_offset = gif_ptr->cur_offset;
+ FX_BOOL res = TRUE;
+ if (gif_ptr->frames) {
+ gif_ptr->cur_offset--;
+ }
+ if (!_gif_write_data(gif_ptr, dst_buf, dst_len)) {
+ gif_ptr->cur_offset = cur_offset;
+ res = FALSE;
+ }
+ dst_len = gif_ptr->cur_offset;
+ dst_buf[dst_len - 1] = GIF_SIG_TRAILER;
+ if (res) {
+ gif_ptr->frames++;
+ }
+ return res;
}
diff --git a/core/src/fxcodec/lgif/fx_gif.h b/core/src/fxcodec/lgif/fx_gif.h index 031e4a4f8f..7e45330820 100644 --- a/core/src/fxcodec/lgif/fx_gif.h +++ b/core/src/fxcodec/lgif/fx_gif.h @@ -10,277 +10,292 @@ 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);
+extern void _BpcConvert(const uint8_t* src_buf,
+ FX_DWORD src_len,
+ int32_t src_bpc,
+ int32_t dst_bpc,
+ uint8_t*& dst_buf,
+ FX_DWORD& dst_len);
#define GIF_SUPPORT_COMMENT_EXTENSION
#define GIF_SUPPORT_GRAPHIC_CONTROL_EXTENSION
#define GIF_SUPPORT_PLAIN_TEXT_EXTENSION
-#define GIF_SIGNATURE "GIF"
-#define GIF_SIG_EXTENSION 0x21
-#define GIF_SIG_IMAGE 0x2C
-#define GIF_SIG_TRAILER 0x3B
-#define GIF_BLOCK_GCE 0xF9
-#define GIF_BLOCK_PTE 0x01
-#define GIF_BLOCK_CE 0xFE
-#define GIF_BLOCK_AE 0xFF
-#define GIF_BLOCK_TERMINAL 0x00
-#define GIF_MAX_LZW_CODE 4096
-#define GIF_DATA_BLOCK 255
-#define GIF_MAX_ERROR_SIZE 256
-#define GIF_D_STATUS_SIG 0x01
-#define GIF_D_STATUS_TAIL 0x02
-#define GIF_D_STATUS_EXT 0x03
-#define GIF_D_STATUS_EXT_AE 0x04
-#define GIF_D_STATUS_EXT_CE 0x05
-#define GIF_D_STATUS_EXT_GCE 0x06
-#define GIF_D_STATUS_EXT_PTE 0x07
-#define GIF_D_STATUS_EXT_UNE 0x08
-#define GIF_D_STATUS_IMG_INFO 0x09
-#define GIF_D_STATUS_IMG_DATA 0x0A
+#define GIF_SIGNATURE "GIF"
+#define GIF_SIG_EXTENSION 0x21
+#define GIF_SIG_IMAGE 0x2C
+#define GIF_SIG_TRAILER 0x3B
+#define GIF_BLOCK_GCE 0xF9
+#define GIF_BLOCK_PTE 0x01
+#define GIF_BLOCK_CE 0xFE
+#define GIF_BLOCK_AE 0xFF
+#define GIF_BLOCK_TERMINAL 0x00
+#define GIF_MAX_LZW_CODE 4096
+#define GIF_DATA_BLOCK 255
+#define GIF_MAX_ERROR_SIZE 256
+#define GIF_D_STATUS_SIG 0x01
+#define GIF_D_STATUS_TAIL 0x02
+#define GIF_D_STATUS_EXT 0x03
+#define GIF_D_STATUS_EXT_AE 0x04
+#define GIF_D_STATUS_EXT_CE 0x05
+#define GIF_D_STATUS_EXT_GCE 0x06
+#define GIF_D_STATUS_EXT_PTE 0x07
+#define GIF_D_STATUS_EXT_UNE 0x08
+#define GIF_D_STATUS_IMG_INFO 0x09
+#define GIF_D_STATUS_IMG_DATA 0x0A
#pragma pack(1)
typedef struct tagGifGF {
- uint8_t pal_bits : 3;
- uint8_t sort_flag : 1;
- uint8_t color_resolution : 3;
- uint8_t global_pal : 1;
+ uint8_t pal_bits : 3;
+ uint8_t sort_flag : 1;
+ uint8_t color_resolution : 3;
+ uint8_t global_pal : 1;
} GifGF;
typedef struct tagGifLF {
- uint8_t pal_bits : 3;
- uint8_t reserved : 2;
- uint8_t sort_flag : 1;
- uint8_t interlace : 1;
- uint8_t local_pal : 1;
+ uint8_t pal_bits : 3;
+ uint8_t reserved : 2;
+ uint8_t sort_flag : 1;
+ uint8_t interlace : 1;
+ uint8_t local_pal : 1;
} GifLF;
typedef struct tagGifHeader {
- char signature[3];
- char version[3];
+ char signature[3];
+ char version[3];
} GifHeader;
typedef struct tagGifLSD {
- FX_WORD width;
- FX_WORD height;
- uint8_t global_flag;
- uint8_t bc_index;
- uint8_t pixel_aspect;
+ FX_WORD width;
+ FX_WORD height;
+ uint8_t global_flag;
+ uint8_t bc_index;
+ uint8_t pixel_aspect;
} GifLSD;
typedef struct tagGifImageInfo {
- FX_WORD left;
- FX_WORD top;
- FX_WORD width;
- FX_WORD height;
+ FX_WORD left;
+ FX_WORD top;
+ FX_WORD width;
+ FX_WORD height;
- uint8_t local_flag;
+ uint8_t local_flag;
} GifImageInfo;
typedef struct tagGifCEF {
- uint8_t transparency : 1;
- uint8_t user_input : 1;
- uint8_t disposal_method : 3;
- uint8_t reserved : 3;
+ uint8_t transparency : 1;
+ uint8_t user_input : 1;
+ uint8_t disposal_method : 3;
+ uint8_t reserved : 3;
} GifCEF;
typedef struct tagGifGCE {
- uint8_t block_size;
- uint8_t gce_flag;
- FX_WORD delay_time;
- uint8_t trans_index;
+ uint8_t block_size;
+ uint8_t gce_flag;
+ FX_WORD delay_time;
+ uint8_t trans_index;
} GifGCE;
typedef struct tagGifPTE {
- uint8_t block_size;
- FX_WORD grid_left;
- FX_WORD grid_top;
- FX_WORD grid_width;
- FX_WORD grid_height;
+ uint8_t block_size;
+ FX_WORD grid_left;
+ FX_WORD grid_top;
+ FX_WORD grid_width;
+ FX_WORD grid_height;
- uint8_t char_width;
- uint8_t char_height;
+ uint8_t char_width;
+ uint8_t char_height;
- uint8_t fc_index;
- uint8_t bc_index;
+ uint8_t fc_index;
+ uint8_t bc_index;
} GifPTE;
typedef struct tagGifAE {
- uint8_t block_size;
- uint8_t app_identify[8];
- uint8_t app_authentication[3];
+ uint8_t block_size;
+ uint8_t app_identify[8];
+ uint8_t app_authentication[3];
} GifAE;
-typedef struct tagGifPalette {
- uint8_t r, g, b;
-} GifPalette;
+typedef struct tagGifPalette { uint8_t r, g, b; } GifPalette;
#pragma pack()
typedef struct tagGifImage {
- GifGCE* image_gce_ptr;
- GifPalette* local_pal_ptr;
- GifImageInfo* image_info_ptr;
- uint8_t image_code_size;
- FX_DWORD image_data_pos;
- uint8_t* image_row_buf;
- int32_t image_row_num;
+ GifGCE* image_gce_ptr;
+ GifPalette* local_pal_ptr;
+ GifImageInfo* image_info_ptr;
+ uint8_t image_code_size;
+ FX_DWORD image_data_pos;
+ uint8_t* image_row_buf;
+ int32_t image_row_num;
} GifImage;
typedef struct tagGifPlainText {
- GifGCE* gce_ptr;
- GifPTE* pte_ptr;
- CFX_ByteString* string_ptr;
+ GifGCE* gce_ptr;
+ GifPTE* pte_ptr;
+ CFX_ByteString* string_ptr;
} GifPlainText;
-class CGifLZWDecoder
-{
-public:
- struct tag_Table {
- FX_WORD prefix;
- uint8_t suffix;
- };
- CGifLZWDecoder(FX_CHAR* error_ptr = NULL)
- {
- err_msg_ptr = error_ptr;
- }
- void InitTable(uint8_t code_len);
+class CGifLZWDecoder {
+ public:
+ struct tag_Table {
+ FX_WORD prefix;
+ uint8_t suffix;
+ };
+ CGifLZWDecoder(FX_CHAR* error_ptr = NULL) { err_msg_ptr = error_ptr; }
+ void InitTable(uint8_t code_len);
- int32_t Decode(uint8_t* des_buf, FX_DWORD& des_size);
+ int32_t Decode(uint8_t* des_buf, FX_DWORD& des_size);
- void Input(uint8_t* src_buf, FX_DWORD src_size);
- FX_DWORD GetAvailInput();
+ void Input(uint8_t* src_buf, FX_DWORD src_size);
+ FX_DWORD GetAvailInput();
-private:
- void ClearTable();
- void AddCode(FX_WORD prefix_code, uint8_t append_char);
- void DecodeString(FX_WORD code);
- uint8_t code_size;
- uint8_t code_size_cur;
- FX_WORD code_clear;
- FX_WORD code_end;
- FX_WORD code_next;
- uint8_t code_first;
- uint8_t stack[GIF_MAX_LZW_CODE];
- FX_WORD stack_size;
- tag_Table code_table[GIF_MAX_LZW_CODE];
- FX_WORD code_old;
+ private:
+ void ClearTable();
+ void AddCode(FX_WORD prefix_code, uint8_t append_char);
+ void DecodeString(FX_WORD code);
+ uint8_t code_size;
+ uint8_t code_size_cur;
+ FX_WORD code_clear;
+ FX_WORD code_end;
+ FX_WORD code_next;
+ uint8_t code_first;
+ uint8_t stack[GIF_MAX_LZW_CODE];
+ FX_WORD stack_size;
+ tag_Table code_table[GIF_MAX_LZW_CODE];
+ FX_WORD code_old;
- uint8_t* next_in;
- FX_DWORD avail_in;
+ uint8_t* next_in;
+ FX_DWORD avail_in;
- uint8_t bits_left;
- FX_DWORD code_store;
+ uint8_t bits_left;
+ FX_DWORD code_store;
- FX_CHAR* err_msg_ptr;
+ FX_CHAR* err_msg_ptr;
};
-class CGifLZWEncoder
-{
-public:
- struct tag_Table {
- FX_WORD prefix;
- uint8_t suffix;
- };
- CGifLZWEncoder();
- ~CGifLZWEncoder();
- void Start(uint8_t code_len, const uint8_t* src_buf, uint8_t*& dst_buf, FX_DWORD& offset);
- FX_BOOL Encode(const uint8_t* src_buf, FX_DWORD src_len, uint8_t*& dst_buf, FX_DWORD& dst_len, FX_DWORD& offset);
- void Finish(uint8_t*& dst_buf, FX_DWORD& dst_len, FX_DWORD& offset);
-private:
- void ClearTable();
- FX_BOOL LookUpInTable(const uint8_t* buf, FX_DWORD& offset, uint8_t& bit_offset);
- void EncodeString(FX_DWORD index, uint8_t*& dst_buf, FX_DWORD& dst_len, FX_DWORD& offset);
- void WriteBlock(uint8_t*& dst_buf, FX_DWORD& dst_len, FX_DWORD& offset);
- jmp_buf jmp;
- FX_DWORD src_offset;
- uint8_t src_bit_offset;
- uint8_t src_bit_cut;
- FX_DWORD src_bit_num;
- uint8_t code_size;
- FX_WORD code_clear;
- FX_WORD code_end;
- FX_WORD index_num;
- uint8_t bit_offset;
- uint8_t index_bit_cur;
- uint8_t index_buf[GIF_DATA_BLOCK];
- uint8_t index_buf_len;
- tag_Table code_table[GIF_MAX_LZW_CODE];
- FX_WORD table_cur;
+class CGifLZWEncoder {
+ public:
+ struct tag_Table {
+ FX_WORD prefix;
+ uint8_t suffix;
+ };
+ CGifLZWEncoder();
+ ~CGifLZWEncoder();
+ void Start(uint8_t code_len,
+ const uint8_t* src_buf,
+ uint8_t*& dst_buf,
+ FX_DWORD& offset);
+ FX_BOOL Encode(const uint8_t* src_buf,
+ FX_DWORD src_len,
+ uint8_t*& dst_buf,
+ FX_DWORD& dst_len,
+ FX_DWORD& offset);
+ void Finish(uint8_t*& dst_buf, FX_DWORD& dst_len, FX_DWORD& offset);
+
+ private:
+ void ClearTable();
+ FX_BOOL LookUpInTable(const uint8_t* buf,
+ FX_DWORD& offset,
+ uint8_t& bit_offset);
+ void EncodeString(FX_DWORD index,
+ uint8_t*& dst_buf,
+ FX_DWORD& dst_len,
+ FX_DWORD& offset);
+ void WriteBlock(uint8_t*& dst_buf, FX_DWORD& dst_len, FX_DWORD& offset);
+ jmp_buf jmp;
+ FX_DWORD src_offset;
+ uint8_t src_bit_offset;
+ uint8_t src_bit_cut;
+ FX_DWORD src_bit_num;
+ uint8_t code_size;
+ FX_WORD code_clear;
+ FX_WORD code_end;
+ FX_WORD index_num;
+ uint8_t bit_offset;
+ uint8_t index_bit_cur;
+ uint8_t index_buf[GIF_DATA_BLOCK];
+ uint8_t index_buf_len;
+ tag_Table code_table[GIF_MAX_LZW_CODE];
+ FX_WORD table_cur;
};
typedef struct tag_gif_decompress_struct gif_decompress_struct;
-typedef gif_decompress_struct *gif_decompress_struct_p;
-typedef gif_decompress_struct_p *gif_decompress_struct_pp;
+typedef gif_decompress_struct* gif_decompress_struct_p;
+typedef gif_decompress_struct_p* gif_decompress_struct_pp;
static int32_t s_gif_interlace_step[4] = {8, 8, 4, 2};
struct tag_gif_decompress_struct {
- jmp_buf jmpbuf;
- FX_CHAR* err_ptr;
- void (*_gif_error_fn)(gif_decompress_struct_p gif_ptr, const FX_CHAR* err_msg);
- void* context_ptr;
- int width;
- int height;
- GifPalette* global_pal_ptr;
- int32_t global_pal_num;
- uint8_t global_sort_flag;
- uint8_t global_color_resolution;
+ jmp_buf jmpbuf;
+ FX_CHAR* err_ptr;
+ void (*_gif_error_fn)(gif_decompress_struct_p gif_ptr,
+ const FX_CHAR* err_msg);
+ void* context_ptr;
+ int width;
+ int height;
+ GifPalette* global_pal_ptr;
+ int32_t global_pal_num;
+ uint8_t global_sort_flag;
+ uint8_t global_color_resolution;
- uint8_t bc_index;
- uint8_t pixel_aspect;
- CGifLZWDecoder* img_decoder_ptr;
- FX_DWORD img_row_offset;
- FX_DWORD img_row_avail_size;
- uint8_t img_pass_num;
- CFX_ArrayTemplate<GifImage*>* img_ptr_arr_ptr;
- uint8_t* (*_gif_ask_buf_for_pal_fn)(gif_decompress_struct_p gif_ptr, int32_t pal_size);
- uint8_t* next_in;
- FX_DWORD avail_in;
- int32_t decode_status;
- FX_DWORD skip_size;
- void (*_gif_record_current_position_fn)(gif_decompress_struct_p gif_ptr, FX_DWORD* cur_pos_ptr);
- void (*_gif_get_row_fn)(gif_decompress_struct_p gif_ptr, int32_t row_num, uint8_t* row_buf);
- FX_BOOL (*_gif_get_record_position_fn)(gif_decompress_struct_p gif_ptr, FX_DWORD cur_pos,
+ uint8_t bc_index;
+ uint8_t pixel_aspect;
+ CGifLZWDecoder* img_decoder_ptr;
+ FX_DWORD img_row_offset;
+ FX_DWORD img_row_avail_size;
+ uint8_t img_pass_num;
+ CFX_ArrayTemplate<GifImage*>* img_ptr_arr_ptr;
+ uint8_t* (*_gif_ask_buf_for_pal_fn)(gif_decompress_struct_p gif_ptr,
+ int32_t pal_size);
+ uint8_t* next_in;
+ FX_DWORD avail_in;
+ int32_t decode_status;
+ FX_DWORD skip_size;
+ void (*_gif_record_current_position_fn)(gif_decompress_struct_p gif_ptr,
+ FX_DWORD* cur_pos_ptr);
+ void (*_gif_get_row_fn)(gif_decompress_struct_p gif_ptr,
+ int32_t row_num,
+ uint8_t* row_buf);
+ FX_BOOL (*_gif_get_record_position_fn)(gif_decompress_struct_p gif_ptr, FX_DWORD cur_pos,
int32_t left, int32_t top, int32_t width, int32_t height,
int32_t pal_num, void* pal_ptr,
int32_t delay_time, FX_BOOL user_input,
int32_t trans_index, int32_t disposal_method, FX_BOOL interlace);
#ifdef GIF_SUPPORT_APPLICATION_EXTENSION
- uint8_t app_identify[8];
- uint8_t app_authentication[3];
- FX_DWORD app_data_size;
- uint8_t* app_data;
+ 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;
+ CFX_ByteString* cmt_data_ptr;
#endif
#ifdef GIF_SUPPORT_GRAPHIC_CONTROL_EXTENSION
- GifGCE* gce_ptr;
+ GifGCE* gce_ptr;
#endif
#ifdef GIF_SUPPORT_PLAIN_TEXT_EXTENSION
- CFX_ArrayTemplate<GifPlainText*>* pt_ptr_arr_ptr;
+ CFX_ArrayTemplate<GifPlainText*>* pt_ptr_arr_ptr;
#endif
};
typedef struct tag_gif_compress_struct gif_compress_struct;
-typedef gif_compress_struct *gif_compress_struct_p;
-typedef gif_compress_struct_p *gif_compress_struct_pp;
+typedef gif_compress_struct* gif_compress_struct_p;
+typedef gif_compress_struct_p* gif_compress_struct_pp;
struct tag_gif_compress_struct {
- const uint8_t* src_buf;
- FX_DWORD src_pitch;
- FX_DWORD src_width;
- FX_DWORD src_row;
- FX_DWORD cur_offset;
- FX_DWORD frames;
- GifHeader* header_ptr;
- GifLSD* lsd_ptr;
- GifPalette* global_pal;
- FX_WORD gpal_num;
- GifPalette* local_pal;
- FX_WORD lpal_num;
- GifImageInfo* image_info_ptr;
- CGifLZWEncoder* img_encoder_ptr;
+ const uint8_t* src_buf;
+ FX_DWORD src_pitch;
+ FX_DWORD src_width;
+ FX_DWORD src_row;
+ FX_DWORD cur_offset;
+ FX_DWORD frames;
+ GifHeader* header_ptr;
+ GifLSD* lsd_ptr;
+ GifPalette* global_pal;
+ FX_WORD gpal_num;
+ GifPalette* local_pal;
+ FX_WORD lpal_num;
+ GifImageInfo* image_info_ptr;
+ CGifLZWEncoder* img_encoder_ptr;
#ifdef GIF_SUPPORT_APPLICATION_EXTENSION
- uint8_t app_identify[8];
- uint8_t app_authentication[3];
- FX_DWORD app_data_size;
- uint8_t* app_data;
+ 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;
+ uint8_t* cmt_data_ptr;
+ FX_DWORD cmt_data_len;
#endif
#ifdef GIF_SUPPORT_GRAPHIC_CONTROL_EXTENSION
- GifGCE* gce_ptr;
+ GifGCE* gce_ptr;
#endif
#ifdef GIF_SUPPORT_PLAIN_TEXT_EXTENSION
- GifPTE* pte_ptr;
- const uint8_t* pte_data_ptr;
- FX_DWORD pte_data_len;
+ 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);
@@ -294,15 +309,24 @@ 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);
+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);
+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_input_buffer(gif_decompress_struct_p gif_ptr,
+ uint8_t* src_buf,
+ FX_DWORD src_size);
+FX_DWORD _gif_get_avail_input(gif_decompress_struct_p gif_ptr,
+ uint8_t** avial_buf_ptr);
void interlace_buf(const uint8_t* buf, FX_DWORD width, FX_DWORD height);
-FX_BOOL _gif_encode( gif_compress_struct_p gif_ptr, uint8_t*& dst_buf, FX_DWORD& dst_len );
-#define GIF_PTR_NOT_NULL(ptr,gif_ptr) if(ptr == NULL){ \
- _gif_error(gif_ptr,"Out Of Memory");\
- return 0; \
- }
+FX_BOOL _gif_encode(gif_compress_struct_p gif_ptr,
+ uint8_t*& dst_buf,
+ FX_DWORD& dst_len);
+#define GIF_PTR_NOT_NULL(ptr, gif_ptr) \
+ if (ptr == NULL) { \
+ _gif_error(gif_ptr, "Out Of Memory"); \
+ return 0; \
+ }
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