Index: core/src/fxcodec/codec/fx_codec_jpeg.cpp |
diff --git a/core/src/fxcodec/codec/fx_codec_jpeg.cpp b/core/src/fxcodec/codec/fx_codec_jpeg.cpp |
index 6839d3150937aecba72ec72de8310cde5b18a4ed..681678c264b5850f5f4da76965d7dcffeedc4cce 100644 |
--- a/core/src/fxcodec/codec/fx_codec_jpeg.cpp |
+++ b/core/src/fxcodec/codec/fx_codec_jpeg.cpp |
@@ -17,664 +17,695 @@ extern "C" { |
} |
extern "C" { |
- static void _JpegScanSOI(const uint8_t*& src_buf, FX_DWORD& src_size) |
- { |
- if (src_size == 0) { |
- return; |
- } |
- FX_DWORD offset = 0; |
- while (offset < src_size - 1) { |
- if (src_buf[offset] == 0xff && src_buf[offset + 1] == 0xd8) { |
- src_buf += offset; |
- src_size -= offset; |
- return; |
- } |
- offset ++; |
- } |
- } |
+static void _JpegScanSOI(const uint8_t*& src_buf, FX_DWORD& src_size) { |
+ if (src_size == 0) { |
+ return; |
+ } |
+ FX_DWORD offset = 0; |
+ while (offset < src_size - 1) { |
+ if (src_buf[offset] == 0xff && src_buf[offset + 1] == 0xd8) { |
+ src_buf += offset; |
+ src_size -= offset; |
+ return; |
+ } |
+ offset++; |
+ } |
+} |
}; |
extern "C" { |
- static void _src_do_nothing(struct jpeg_decompress_struct* cinfo) {} |
+static void _src_do_nothing(struct jpeg_decompress_struct* cinfo) {} |
}; |
extern "C" { |
- static void _error_fatal(j_common_ptr cinfo) |
- { |
- longjmp(*(jmp_buf*)cinfo->client_data, -1); |
- } |
+static void _error_fatal(j_common_ptr cinfo) { |
+ longjmp(*(jmp_buf*)cinfo->client_data, -1); |
+} |
}; |
extern "C" { |
- static void _src_skip_data(struct jpeg_decompress_struct* cinfo, long num) |
- { |
- if (num > (long)cinfo->src->bytes_in_buffer) { |
- _error_fatal((j_common_ptr)cinfo); |
- } |
- cinfo->src->next_input_byte += num; |
- cinfo->src->bytes_in_buffer -= num; |
- } |
+static void _src_skip_data(struct jpeg_decompress_struct* cinfo, long num) { |
+ if (num > (long)cinfo->src->bytes_in_buffer) { |
+ _error_fatal((j_common_ptr)cinfo); |
+ } |
+ cinfo->src->next_input_byte += num; |
+ cinfo->src->bytes_in_buffer -= num; |
+} |
}; |
extern "C" { |
- static boolean _src_fill_buffer(j_decompress_ptr cinfo) |
- { |
- return 0; |
- } |
+static boolean _src_fill_buffer(j_decompress_ptr cinfo) { |
+ return 0; |
+} |
}; |
extern "C" { |
- static boolean _src_resync(j_decompress_ptr cinfo, int desired) |
- { |
- return 0; |
- } |
+static boolean _src_resync(j_decompress_ptr cinfo, int desired) { |
+ return 0; |
+} |
}; |
extern "C" { |
- static void _error_do_nothing(j_common_ptr cinfo) {} |
+static void _error_do_nothing(j_common_ptr cinfo) {} |
}; |
extern "C" { |
- static void _error_do_nothing1(j_common_ptr cinfo, int) {} |
+static void _error_do_nothing1(j_common_ptr cinfo, int) {} |
}; |
extern "C" { |
- static void _error_do_nothing2(j_common_ptr cinfo, char*) {} |
+static void _error_do_nothing2(j_common_ptr cinfo, char*) {} |
}; |
-#define JPEG_MARKER_EXIF (JPEG_APP0 + 1) |
-#define JPEG_MARKER_ICC (JPEG_APP0 + 2) |
-#define JPEG_MARKER_AUTHORTIME (JPEG_APP0 + 3) |
-#define JPEG_MARKER_MAXSIZE 0xFFFF |
-#define JPEG_OVERHEAD_LEN 14 |
-static FX_BOOL _JpegEmbedIccProfile(j_compress_ptr cinfo, const uint8_t* icc_buf_ptr, FX_DWORD icc_length) |
-{ |
- if(icc_buf_ptr == NULL || icc_length == 0) { |
- return FALSE; |
- } |
- FX_DWORD icc_segment_size = (JPEG_MARKER_MAXSIZE - 2 - JPEG_OVERHEAD_LEN); |
- FX_DWORD icc_segment_num = (icc_length / icc_segment_size) + 1; |
- if (icc_segment_num > 255) { |
- return FALSE; |
- } |
- FX_DWORD icc_data_length = JPEG_OVERHEAD_LEN + (icc_segment_num > 1 ? icc_segment_size : icc_length); |
- uint8_t* icc_data = FX_Alloc(uint8_t, icc_data_length); |
- FXSYS_memcpy(icc_data, "\x49\x43\x43\x5f\x50\x52\x4f\x46\x49\x4c\x45\x00", 12); |
- icc_data[13] = (uint8_t)icc_segment_num; |
- for (uint8_t i = 0; i < (icc_segment_num - 1); i++) { |
- icc_data[12] = i + 1; |
- FXSYS_memcpy(icc_data + JPEG_OVERHEAD_LEN, icc_buf_ptr + i * icc_segment_size, icc_segment_size); |
- jpeg_write_marker(cinfo, JPEG_MARKER_ICC, icc_data, icc_data_length); |
- } |
- icc_data[12] = (uint8_t)icc_segment_num; |
- FX_DWORD icc_size = (icc_segment_num - 1) * icc_segment_size; |
- FXSYS_memcpy(icc_data + JPEG_OVERHEAD_LEN, icc_buf_ptr + icc_size, icc_length - icc_size); |
- jpeg_write_marker(cinfo, JPEG_MARKER_ICC, icc_data, JPEG_OVERHEAD_LEN + icc_length - icc_size); |
- FX_Free(icc_data); |
- return TRUE; |
+#define JPEG_MARKER_EXIF (JPEG_APP0 + 1) |
+#define JPEG_MARKER_ICC (JPEG_APP0 + 2) |
+#define JPEG_MARKER_AUTHORTIME (JPEG_APP0 + 3) |
+#define JPEG_MARKER_MAXSIZE 0xFFFF |
+#define JPEG_OVERHEAD_LEN 14 |
+static FX_BOOL _JpegEmbedIccProfile(j_compress_ptr cinfo, |
+ const uint8_t* icc_buf_ptr, |
+ FX_DWORD icc_length) { |
+ if (icc_buf_ptr == NULL || icc_length == 0) { |
+ return FALSE; |
+ } |
+ FX_DWORD icc_segment_size = (JPEG_MARKER_MAXSIZE - 2 - JPEG_OVERHEAD_LEN); |
+ FX_DWORD icc_segment_num = (icc_length / icc_segment_size) + 1; |
+ if (icc_segment_num > 255) { |
+ return FALSE; |
+ } |
+ FX_DWORD icc_data_length = |
+ JPEG_OVERHEAD_LEN + (icc_segment_num > 1 ? icc_segment_size : icc_length); |
+ uint8_t* icc_data = FX_Alloc(uint8_t, icc_data_length); |
+ FXSYS_memcpy(icc_data, "\x49\x43\x43\x5f\x50\x52\x4f\x46\x49\x4c\x45\x00", |
+ 12); |
+ icc_data[13] = (uint8_t)icc_segment_num; |
+ for (uint8_t i = 0; i < (icc_segment_num - 1); i++) { |
+ icc_data[12] = i + 1; |
+ FXSYS_memcpy(icc_data + JPEG_OVERHEAD_LEN, |
+ icc_buf_ptr + i * icc_segment_size, icc_segment_size); |
+ jpeg_write_marker(cinfo, JPEG_MARKER_ICC, icc_data, icc_data_length); |
+ } |
+ icc_data[12] = (uint8_t)icc_segment_num; |
+ FX_DWORD icc_size = (icc_segment_num - 1) * icc_segment_size; |
+ FXSYS_memcpy(icc_data + JPEG_OVERHEAD_LEN, icc_buf_ptr + icc_size, |
+ icc_length - icc_size); |
+ jpeg_write_marker(cinfo, JPEG_MARKER_ICC, icc_data, |
+ JPEG_OVERHEAD_LEN + icc_length - icc_size); |
+ FX_Free(icc_data); |
+ return TRUE; |
} |
extern "C" { |
- static void _dest_do_nothing(j_compress_ptr cinfo) {} |
+static void _dest_do_nothing(j_compress_ptr cinfo) {} |
}; |
extern "C" { |
- static boolean _dest_empty(j_compress_ptr cinfo) |
- { |
- return FALSE; |
- } |
+static boolean _dest_empty(j_compress_ptr cinfo) { |
+ return FALSE; |
+} |
}; |
-#define JPEG_BLOCK_SIZE 1048576 |
-static void _JpegEncode(const CFX_DIBSource* pSource, uint8_t*& dest_buf, FX_STRSIZE& dest_size, int quality, const uint8_t* icc_buf, FX_DWORD icc_length) |
-{ |
- struct jpeg_error_mgr jerr; |
- jerr.error_exit = _error_do_nothing; |
- jerr.emit_message = _error_do_nothing1; |
- jerr.output_message = _error_do_nothing; |
- jerr.format_message = _error_do_nothing2; |
- jerr.reset_error_mgr = _error_do_nothing; |
+#define JPEG_BLOCK_SIZE 1048576 |
+static void _JpegEncode(const CFX_DIBSource* pSource, |
+ uint8_t*& dest_buf, |
+ FX_STRSIZE& dest_size, |
+ int quality, |
+ const uint8_t* icc_buf, |
+ FX_DWORD icc_length) { |
+ struct jpeg_error_mgr jerr; |
+ jerr.error_exit = _error_do_nothing; |
+ jerr.emit_message = _error_do_nothing1; |
+ jerr.output_message = _error_do_nothing; |
+ jerr.format_message = _error_do_nothing2; |
+ jerr.reset_error_mgr = _error_do_nothing; |
- struct jpeg_compress_struct cinfo; |
- memset(&cinfo, 0, sizeof(cinfo)); |
- cinfo.err = &jerr; |
- jpeg_create_compress(&cinfo); |
- int Bpp = pSource->GetBPP() / 8; |
- FX_DWORD nComponents = Bpp >= 3 ? (pSource->IsCmykImage() ? 4 : 3) : 1; |
- FX_DWORD pitch = pSource->GetPitch(); |
- FX_DWORD width = pdfium::base::checked_cast<FX_DWORD>(pSource->GetWidth()); |
- FX_DWORD height = pdfium::base::checked_cast<FX_DWORD>(pSource->GetHeight()); |
- FX_SAFE_DWORD safe_buf_len = width; |
- safe_buf_len *= height; |
- safe_buf_len *= nComponents; |
- safe_buf_len += 1024; |
- if (icc_length) { |
- safe_buf_len += 255 * 18; |
- safe_buf_len += icc_length; |
- } |
- FX_DWORD dest_buf_length = 0; |
- if (!safe_buf_len.IsValid()) { |
- dest_buf = nullptr; |
- } else { |
- dest_buf_length = safe_buf_len.ValueOrDie(); |
- dest_buf = FX_TryAlloc(uint8_t, dest_buf_length); |
- const int MIN_TRY_BUF_LEN = 1024; |
- while (!dest_buf && dest_buf_length > MIN_TRY_BUF_LEN) { |
- dest_buf_length >>= 1; |
- dest_buf = FX_TryAlloc(uint8_t, dest_buf_length); |
- } |
- } |
- if (!dest_buf) { |
- FX_OutOfMemoryTerminate(); |
- } |
- struct jpeg_destination_mgr dest; |
- dest.init_destination = _dest_do_nothing; |
- dest.term_destination = _dest_do_nothing; |
- dest.empty_output_buffer = _dest_empty; |
- dest.next_output_byte = dest_buf; |
- dest.free_in_buffer = dest_buf_length; |
- cinfo.dest = &dest; |
- cinfo.image_width = width; |
- cinfo.image_height = height; |
- cinfo.input_components = nComponents; |
- if (nComponents == 1) { |
- cinfo.in_color_space = JCS_GRAYSCALE; |
- } else if (nComponents == 3) { |
- cinfo.in_color_space = JCS_RGB; |
- } else { |
- cinfo.in_color_space = JCS_CMYK; |
- } |
- uint8_t* line_buf = NULL; |
+ struct jpeg_compress_struct cinfo; |
+ memset(&cinfo, 0, sizeof(cinfo)); |
+ cinfo.err = &jerr; |
+ jpeg_create_compress(&cinfo); |
+ int Bpp = pSource->GetBPP() / 8; |
+ FX_DWORD nComponents = Bpp >= 3 ? (pSource->IsCmykImage() ? 4 : 3) : 1; |
+ FX_DWORD pitch = pSource->GetPitch(); |
+ FX_DWORD width = pdfium::base::checked_cast<FX_DWORD>(pSource->GetWidth()); |
+ FX_DWORD height = pdfium::base::checked_cast<FX_DWORD>(pSource->GetHeight()); |
+ FX_SAFE_DWORD safe_buf_len = width; |
+ safe_buf_len *= height; |
+ safe_buf_len *= nComponents; |
+ safe_buf_len += 1024; |
+ if (icc_length) { |
+ safe_buf_len += 255 * 18; |
+ safe_buf_len += icc_length; |
+ } |
+ FX_DWORD dest_buf_length = 0; |
+ if (!safe_buf_len.IsValid()) { |
+ dest_buf = nullptr; |
+ } else { |
+ dest_buf_length = safe_buf_len.ValueOrDie(); |
+ dest_buf = FX_TryAlloc(uint8_t, dest_buf_length); |
+ const int MIN_TRY_BUF_LEN = 1024; |
+ while (!dest_buf && dest_buf_length > MIN_TRY_BUF_LEN) { |
+ dest_buf_length >>= 1; |
+ dest_buf = FX_TryAlloc(uint8_t, dest_buf_length); |
+ } |
+ } |
+ if (!dest_buf) { |
+ FX_OutOfMemoryTerminate(); |
+ } |
+ struct jpeg_destination_mgr dest; |
+ dest.init_destination = _dest_do_nothing; |
+ dest.term_destination = _dest_do_nothing; |
+ dest.empty_output_buffer = _dest_empty; |
+ dest.next_output_byte = dest_buf; |
+ dest.free_in_buffer = dest_buf_length; |
+ cinfo.dest = &dest; |
+ cinfo.image_width = width; |
+ cinfo.image_height = height; |
+ cinfo.input_components = nComponents; |
+ if (nComponents == 1) { |
+ cinfo.in_color_space = JCS_GRAYSCALE; |
+ } else if (nComponents == 3) { |
+ cinfo.in_color_space = JCS_RGB; |
+ } else { |
+ cinfo.in_color_space = JCS_CMYK; |
+ } |
+ uint8_t* line_buf = NULL; |
+ if (nComponents > 1) { |
+ line_buf = FX_Alloc2D(uint8_t, width, nComponents); |
+ } |
+ jpeg_set_defaults(&cinfo); |
+ if (quality != 75) { |
+ jpeg_set_quality(&cinfo, quality, TRUE); |
+ } |
+ jpeg_start_compress(&cinfo, TRUE); |
+ _JpegEmbedIccProfile(&cinfo, icc_buf, icc_length); |
+ JSAMPROW row_pointer[1]; |
+ JDIMENSION row; |
+ while (cinfo.next_scanline < cinfo.image_height) { |
+ const uint8_t* src_scan = pSource->GetScanline(cinfo.next_scanline); |
if (nComponents > 1) { |
- line_buf = FX_Alloc2D(uint8_t, width, nComponents); |
- } |
- jpeg_set_defaults(&cinfo); |
- if(quality != 75) { |
- jpeg_set_quality(&cinfo, quality, TRUE); |
- } |
- jpeg_start_compress(&cinfo, TRUE); |
- _JpegEmbedIccProfile(&cinfo, icc_buf, icc_length); |
- JSAMPROW row_pointer[1]; |
- JDIMENSION row; |
- while (cinfo.next_scanline < cinfo.image_height) { |
- const uint8_t* src_scan = pSource->GetScanline(cinfo.next_scanline); |
- if (nComponents > 1) { |
- uint8_t* dest_scan = line_buf; |
- if (nComponents == 3) { |
- for (int i = 0; i < width; i ++) { |
- dest_scan[0] = src_scan[2]; |
- dest_scan[1] = src_scan[1]; |
- dest_scan[2] = src_scan[0]; |
- dest_scan += 3; |
- src_scan += Bpp; |
- } |
- } else { |
- for (int i = 0; i < pitch; i ++) { |
- *dest_scan++ = ~*src_scan++; |
- } |
- } |
- row_pointer[0] = line_buf; |
- } else { |
- row_pointer[0] = (uint8_t*)src_scan; |
+ uint8_t* dest_scan = line_buf; |
+ if (nComponents == 3) { |
+ for (int i = 0; i < width; i++) { |
+ dest_scan[0] = src_scan[2]; |
+ dest_scan[1] = src_scan[1]; |
+ dest_scan[2] = src_scan[0]; |
+ dest_scan += 3; |
+ src_scan += Bpp; |
} |
- row = cinfo.next_scanline; |
- jpeg_write_scanlines(&cinfo, row_pointer, 1); |
- if (cinfo.next_scanline == row) { |
- dest_buf = FX_Realloc(uint8_t, dest_buf, dest_buf_length + JPEG_BLOCK_SIZE); |
- dest.next_output_byte = dest_buf + dest_buf_length - dest.free_in_buffer; |
- dest_buf_length += JPEG_BLOCK_SIZE; |
- dest.free_in_buffer += JPEG_BLOCK_SIZE; |
+ } else { |
+ for (int i = 0; i < pitch; i++) { |
+ *dest_scan++ = ~*src_scan++; |
} |
- } |
- jpeg_finish_compress(&cinfo); |
- jpeg_destroy_compress(&cinfo); |
- if (line_buf) { |
- FX_Free(line_buf); |
- } |
- dest_size = dest_buf_length - (FX_STRSIZE)dest.free_in_buffer; |
-} |
-static FX_BOOL _JpegLoadInfo(const uint8_t* src_buf, FX_DWORD src_size, int& width, int& height, |
- int& num_components, int& bits_per_components, FX_BOOL& color_transform, |
- uint8_t** icc_buf_ptr, FX_DWORD* icc_length) |
-{ |
- _JpegScanSOI(src_buf, src_size); |
- struct jpeg_decompress_struct cinfo; |
- struct jpeg_error_mgr jerr; |
- jerr.error_exit = _error_fatal; |
- jerr.emit_message = _error_do_nothing1; |
- jerr.output_message = _error_do_nothing; |
- jerr.format_message = _error_do_nothing2; |
- jerr.reset_error_mgr = _error_do_nothing; |
- jerr.trace_level = 0; |
- cinfo.err = &jerr; |
- jmp_buf mark; |
- cinfo.client_data = &mark; |
- if (setjmp(mark) == -1) { |
- return FALSE; |
- } |
- jpeg_create_decompress(&cinfo); |
- struct jpeg_source_mgr src; |
- src.init_source = _src_do_nothing; |
- src.term_source = _src_do_nothing; |
- src.skip_input_data = _src_skip_data; |
- src.fill_input_buffer = _src_fill_buffer; |
- src.resync_to_restart = _src_resync; |
- src.bytes_in_buffer = src_size; |
- src.next_input_byte = src_buf; |
- cinfo.src = &src; |
- if (setjmp(mark) == -1) { |
- jpeg_destroy_decompress(&cinfo); |
- return FALSE; |
- } |
- if(icc_buf_ptr && icc_length) { |
- jpeg_save_markers(&cinfo, JPEG_MARKER_ICC, JPEG_MARKER_MAXSIZE); |
- } |
- int ret = jpeg_read_header(&cinfo, TRUE); |
- if (ret != JPEG_HEADER_OK) { |
- jpeg_destroy_decompress(&cinfo); |
- return FALSE; |
- } |
- width = cinfo.image_width; |
- height = cinfo.image_height; |
- num_components = cinfo.num_components; |
- color_transform = cinfo.jpeg_color_space == JCS_YCbCr || cinfo.jpeg_color_space == JCS_YCCK; |
- bits_per_components = cinfo.data_precision; |
- if(icc_buf_ptr != NULL) { |
- *icc_buf_ptr = NULL; |
- } |
- if(icc_length != NULL) { |
- *icc_length = 0; |
- } |
+ } |
+ row_pointer[0] = line_buf; |
+ } else { |
+ row_pointer[0] = (uint8_t*)src_scan; |
+ } |
+ row = cinfo.next_scanline; |
+ jpeg_write_scanlines(&cinfo, row_pointer, 1); |
+ if (cinfo.next_scanline == row) { |
+ dest_buf = |
+ FX_Realloc(uint8_t, dest_buf, dest_buf_length + JPEG_BLOCK_SIZE); |
+ dest.next_output_byte = dest_buf + dest_buf_length - dest.free_in_buffer; |
+ dest_buf_length += JPEG_BLOCK_SIZE; |
+ dest.free_in_buffer += JPEG_BLOCK_SIZE; |
+ } |
+ } |
+ jpeg_finish_compress(&cinfo); |
+ jpeg_destroy_compress(&cinfo); |
+ if (line_buf) { |
+ FX_Free(line_buf); |
+ } |
+ dest_size = dest_buf_length - (FX_STRSIZE)dest.free_in_buffer; |
+} |
+static FX_BOOL _JpegLoadInfo(const uint8_t* src_buf, |
+ FX_DWORD src_size, |
+ int& width, |
+ int& height, |
+ int& num_components, |
+ int& bits_per_components, |
+ FX_BOOL& color_transform, |
+ uint8_t** icc_buf_ptr, |
+ FX_DWORD* icc_length) { |
+ _JpegScanSOI(src_buf, src_size); |
+ struct jpeg_decompress_struct cinfo; |
+ struct jpeg_error_mgr jerr; |
+ jerr.error_exit = _error_fatal; |
+ jerr.emit_message = _error_do_nothing1; |
+ jerr.output_message = _error_do_nothing; |
+ jerr.format_message = _error_do_nothing2; |
+ jerr.reset_error_mgr = _error_do_nothing; |
+ jerr.trace_level = 0; |
+ cinfo.err = &jerr; |
+ jmp_buf mark; |
+ cinfo.client_data = &mark; |
+ if (setjmp(mark) == -1) { |
+ return FALSE; |
+ } |
+ jpeg_create_decompress(&cinfo); |
+ struct jpeg_source_mgr src; |
+ src.init_source = _src_do_nothing; |
+ src.term_source = _src_do_nothing; |
+ src.skip_input_data = _src_skip_data; |
+ src.fill_input_buffer = _src_fill_buffer; |
+ src.resync_to_restart = _src_resync; |
+ src.bytes_in_buffer = src_size; |
+ src.next_input_byte = src_buf; |
+ cinfo.src = &src; |
+ if (setjmp(mark) == -1) { |
jpeg_destroy_decompress(&cinfo); |
- return TRUE; |
-} |
-class CCodec_JpegDecoder : public CCodec_ScanlineDecoder |
-{ |
-public: |
- CCodec_JpegDecoder(); |
- ~CCodec_JpegDecoder(); |
- FX_BOOL Create(const uint8_t* src_buf, FX_DWORD src_size, int width, int height, int nComps, |
- FX_BOOL ColorTransform, IFX_JpegProvider* pJP); |
- virtual void Destroy() |
- { |
- delete this; |
- } |
- virtual void v_DownScale(int dest_width, int dest_height); |
- virtual FX_BOOL v_Rewind(); |
- virtual uint8_t* v_GetNextLine(); |
- virtual FX_DWORD GetSrcOffset(); |
- jmp_buf m_JmpBuf; |
- struct jpeg_decompress_struct cinfo; |
- struct jpeg_error_mgr jerr; |
- struct jpeg_source_mgr src; |
- const uint8_t* m_SrcBuf; |
- FX_DWORD m_SrcSize; |
- uint8_t* m_pScanlineBuf; |
- FX_BOOL InitDecode(); |
- FX_BOOL m_bInited, m_bStarted, m_bJpegTransform; |
-protected: |
- IFX_JpegProvider* m_pExtProvider; |
- void* m_pExtContext; |
- FX_DWORD m_nDefaultScaleDenom; |
+ return FALSE; |
+ } |
+ if (icc_buf_ptr && icc_length) { |
+ jpeg_save_markers(&cinfo, JPEG_MARKER_ICC, JPEG_MARKER_MAXSIZE); |
+ } |
+ int ret = jpeg_read_header(&cinfo, TRUE); |
+ if (ret != JPEG_HEADER_OK) { |
+ jpeg_destroy_decompress(&cinfo); |
+ return FALSE; |
+ } |
+ width = cinfo.image_width; |
+ height = cinfo.image_height; |
+ num_components = cinfo.num_components; |
+ color_transform = |
+ cinfo.jpeg_color_space == JCS_YCbCr || cinfo.jpeg_color_space == JCS_YCCK; |
+ bits_per_components = cinfo.data_precision; |
+ if (icc_buf_ptr != NULL) { |
+ *icc_buf_ptr = NULL; |
+ } |
+ if (icc_length != NULL) { |
+ *icc_length = 0; |
+ } |
+ jpeg_destroy_decompress(&cinfo); |
+ return TRUE; |
+} |
+class CCodec_JpegDecoder : public CCodec_ScanlineDecoder { |
+ public: |
+ CCodec_JpegDecoder(); |
+ ~CCodec_JpegDecoder(); |
+ FX_BOOL Create(const uint8_t* src_buf, |
+ FX_DWORD src_size, |
+ int width, |
+ int height, |
+ int nComps, |
+ FX_BOOL ColorTransform, |
+ IFX_JpegProvider* pJP); |
+ virtual void Destroy() { delete this; } |
+ virtual void v_DownScale(int dest_width, int dest_height); |
+ virtual FX_BOOL v_Rewind(); |
+ virtual uint8_t* v_GetNextLine(); |
+ virtual FX_DWORD GetSrcOffset(); |
+ jmp_buf m_JmpBuf; |
+ struct jpeg_decompress_struct cinfo; |
+ struct jpeg_error_mgr jerr; |
+ struct jpeg_source_mgr src; |
+ const uint8_t* m_SrcBuf; |
+ FX_DWORD m_SrcSize; |
+ uint8_t* m_pScanlineBuf; |
+ FX_BOOL InitDecode(); |
+ FX_BOOL m_bInited, m_bStarted, m_bJpegTransform; |
+ |
+ protected: |
+ IFX_JpegProvider* m_pExtProvider; |
+ void* m_pExtContext; |
+ FX_DWORD m_nDefaultScaleDenom; |
}; |
-CCodec_JpegDecoder::CCodec_JpegDecoder() |
-{ |
- m_pScanlineBuf = NULL; |
- m_DownScale = 1; |
- m_bStarted = FALSE; |
+CCodec_JpegDecoder::CCodec_JpegDecoder() { |
+ m_pScanlineBuf = NULL; |
+ m_DownScale = 1; |
+ m_bStarted = FALSE; |
+ m_bInited = FALSE; |
+ m_pExtProvider = NULL; |
+ m_pExtContext = NULL; |
+ FXSYS_memset(&cinfo, 0, sizeof(cinfo)); |
+ FXSYS_memset(&jerr, 0, sizeof(jerr)); |
+ FXSYS_memset(&src, 0, sizeof(src)); |
+ m_nDefaultScaleDenom = 1; |
+} |
+CCodec_JpegDecoder::~CCodec_JpegDecoder() { |
+ if (m_pExtProvider) { |
+ m_pExtProvider->DestroyDecoder(m_pExtContext); |
+ return; |
+ } |
+ if (m_pScanlineBuf) { |
+ FX_Free(m_pScanlineBuf); |
+ } |
+ if (m_bInited) { |
+ jpeg_destroy_decompress(&cinfo); |
+ } |
+} |
+FX_BOOL CCodec_JpegDecoder::InitDecode() { |
+ cinfo.err = &jerr; |
+ cinfo.client_data = &m_JmpBuf; |
+ if (setjmp(m_JmpBuf) == -1) { |
+ return FALSE; |
+ } |
+ jpeg_create_decompress(&cinfo); |
+ m_bInited = TRUE; |
+ cinfo.src = &src; |
+ src.bytes_in_buffer = m_SrcSize; |
+ src.next_input_byte = m_SrcBuf; |
+ if (setjmp(m_JmpBuf) == -1) { |
+ jpeg_destroy_decompress(&cinfo); |
m_bInited = FALSE; |
- m_pExtProvider = NULL; |
- m_pExtContext = NULL; |
- FXSYS_memset(&cinfo, 0, sizeof(cinfo)); |
- FXSYS_memset(&jerr, 0, sizeof(jerr)); |
- FXSYS_memset(&src, 0, sizeof(src)); |
- m_nDefaultScaleDenom = 1; |
-} |
-CCodec_JpegDecoder::~CCodec_JpegDecoder() |
-{ |
- if (m_pExtProvider) { |
- m_pExtProvider->DestroyDecoder(m_pExtContext); |
- return; |
- } |
- if (m_pScanlineBuf) { |
- FX_Free(m_pScanlineBuf); |
- } |
- if (m_bInited) { |
- jpeg_destroy_decompress(&cinfo); |
- } |
+ return FALSE; |
+ } |
+ cinfo.image_width = m_OrigWidth; |
+ cinfo.image_height = m_OrigHeight; |
+ int ret = jpeg_read_header(&cinfo, TRUE); |
+ if (ret != JPEG_HEADER_OK) { |
+ return FALSE; |
+ } |
+ if (cinfo.saw_Adobe_marker) { |
+ m_bJpegTransform = TRUE; |
+ } |
+ if (cinfo.num_components == 3 && !m_bJpegTransform) { |
+ cinfo.out_color_space = cinfo.jpeg_color_space; |
+ } |
+ m_OrigWidth = cinfo.image_width; |
+ m_OrigHeight = cinfo.image_height; |
+ m_OutputWidth = m_OrigWidth; |
+ m_OutputHeight = m_OrigHeight; |
+ m_nDefaultScaleDenom = cinfo.scale_denom; |
+ return TRUE; |
} |
-FX_BOOL CCodec_JpegDecoder::InitDecode() |
-{ |
- cinfo.err = &jerr; |
- cinfo.client_data = &m_JmpBuf; |
- if (setjmp(m_JmpBuf) == -1) { |
- return FALSE; |
- } |
- jpeg_create_decompress(&cinfo); |
- m_bInited = TRUE; |
- cinfo.src = &src; |
- src.bytes_in_buffer = m_SrcSize; |
- src.next_input_byte = m_SrcBuf; |
- if (setjmp(m_JmpBuf) == -1) { |
- jpeg_destroy_decompress(&cinfo); |
- m_bInited = FALSE; |
- return FALSE; |
- } |
- cinfo.image_width = m_OrigWidth; |
- cinfo.image_height = m_OrigHeight; |
- int ret = jpeg_read_header(&cinfo, TRUE); |
- if (ret != JPEG_HEADER_OK) { |
- return FALSE; |
- } |
- if (cinfo.saw_Adobe_marker) { |
- m_bJpegTransform = TRUE; |
- } |
- if (cinfo.num_components == 3 && !m_bJpegTransform) { |
- cinfo.out_color_space = cinfo.jpeg_color_space; |
- } |
- m_OrigWidth = cinfo.image_width; |
- m_OrigHeight = cinfo.image_height; |
- m_OutputWidth = m_OrigWidth; |
- m_OutputHeight = m_OrigHeight; |
- m_nDefaultScaleDenom = cinfo.scale_denom; |
- return TRUE; |
-} |
-FX_BOOL CCodec_JpegDecoder::Create(const uint8_t* src_buf, FX_DWORD src_size, int width, int height, |
- int nComps, FX_BOOL ColorTransform, IFX_JpegProvider* pJP) |
-{ |
- if (pJP) { |
- m_pExtProvider = pJP; |
- m_pExtContext = m_pExtProvider->CreateDecoder(src_buf, src_size, width, height, nComps, ColorTransform); |
- return m_pExtContext != NULL; |
- } |
- _JpegScanSOI(src_buf, src_size); |
- m_SrcBuf = src_buf; |
- m_SrcSize = src_size; |
- jerr.error_exit = _error_fatal; |
- jerr.emit_message = _error_do_nothing1; |
- jerr.output_message = _error_do_nothing; |
- jerr.format_message = _error_do_nothing2; |
- jerr.reset_error_mgr = _error_do_nothing; |
- src.init_source = _src_do_nothing; |
- src.term_source = _src_do_nothing; |
- src.skip_input_data = _src_skip_data; |
- src.fill_input_buffer = _src_fill_buffer; |
- src.resync_to_restart = _src_resync; |
- m_bJpegTransform = ColorTransform; |
- if(src_size > 1 && FXSYS_memcmp(src_buf + src_size - 2, "\xFF\xD9", 2) != 0) { |
- ((uint8_t*)src_buf)[src_size - 2] = 0xFF; |
- ((uint8_t*)src_buf)[src_size - 1] = 0xD9; |
- } |
- m_OutputWidth = m_OrigWidth = width; |
- m_OutputHeight = m_OrigHeight = height; |
- if (!InitDecode()) { |
- return FALSE; |
- } |
- if (cinfo.num_components < nComps) { |
- return FALSE; |
- } |
- if ((int)cinfo.image_width < width) { |
- return FALSE; |
- } |
- m_Pitch = (cinfo.image_width * cinfo.num_components + 3) / 4 * 4; |
- m_pScanlineBuf = FX_Alloc(uint8_t, m_Pitch); |
- m_nComps = cinfo.num_components; |
- m_bpc = 8; |
- m_bColorTransformed = FALSE; |
- m_bStarted = FALSE; |
- return TRUE; |
+FX_BOOL CCodec_JpegDecoder::Create(const uint8_t* src_buf, |
+ FX_DWORD src_size, |
+ int width, |
+ int height, |
+ int nComps, |
+ FX_BOOL ColorTransform, |
+ IFX_JpegProvider* pJP) { |
+ if (pJP) { |
+ m_pExtProvider = pJP; |
+ m_pExtContext = m_pExtProvider->CreateDecoder( |
+ src_buf, src_size, width, height, nComps, ColorTransform); |
+ return m_pExtContext != NULL; |
+ } |
+ _JpegScanSOI(src_buf, src_size); |
+ m_SrcBuf = src_buf; |
+ m_SrcSize = src_size; |
+ jerr.error_exit = _error_fatal; |
+ jerr.emit_message = _error_do_nothing1; |
+ jerr.output_message = _error_do_nothing; |
+ jerr.format_message = _error_do_nothing2; |
+ jerr.reset_error_mgr = _error_do_nothing; |
+ src.init_source = _src_do_nothing; |
+ src.term_source = _src_do_nothing; |
+ src.skip_input_data = _src_skip_data; |
+ src.fill_input_buffer = _src_fill_buffer; |
+ src.resync_to_restart = _src_resync; |
+ m_bJpegTransform = ColorTransform; |
+ if (src_size > 1 && |
+ FXSYS_memcmp(src_buf + src_size - 2, "\xFF\xD9", 2) != 0) { |
+ ((uint8_t*)src_buf)[src_size - 2] = 0xFF; |
+ ((uint8_t*)src_buf)[src_size - 1] = 0xD9; |
+ } |
+ m_OutputWidth = m_OrigWidth = width; |
+ m_OutputHeight = m_OrigHeight = height; |
+ if (!InitDecode()) { |
+ return FALSE; |
+ } |
+ if (cinfo.num_components < nComps) { |
+ return FALSE; |
+ } |
+ if ((int)cinfo.image_width < width) { |
+ return FALSE; |
+ } |
+ m_Pitch = (cinfo.image_width * cinfo.num_components + 3) / 4 * 4; |
+ m_pScanlineBuf = FX_Alloc(uint8_t, m_Pitch); |
+ m_nComps = cinfo.num_components; |
+ m_bpc = 8; |
+ m_bColorTransformed = FALSE; |
+ m_bStarted = FALSE; |
+ return TRUE; |
} |
extern "C" { |
- int32_t FX_GetDownsampleRatio(int32_t originWidth, int32_t originHeight, int32_t downsampleWidth, int32_t downsampleHeight) |
- { |
- int iratio_w = originWidth / downsampleWidth; |
- int iratio_h = originHeight / downsampleHeight; |
- int ratio = (iratio_w > iratio_h) ? iratio_h : iratio_w; |
- if (ratio >= 8) { |
- return 8; |
- } |
- if (ratio >= 4) { |
- return 4; |
- } |
- if (ratio >= 2) { |
- return 2; |
- } |
- return 1; |
- } |
+int32_t FX_GetDownsampleRatio(int32_t originWidth, |
+ int32_t originHeight, |
+ int32_t downsampleWidth, |
+ int32_t downsampleHeight) { |
+ int iratio_w = originWidth / downsampleWidth; |
+ int iratio_h = originHeight / downsampleHeight; |
+ int ratio = (iratio_w > iratio_h) ? iratio_h : iratio_w; |
+ if (ratio >= 8) { |
+ return 8; |
+ } |
+ if (ratio >= 4) { |
+ return 4; |
+ } |
+ if (ratio >= 2) { |
+ return 2; |
+ } |
+ return 1; |
} |
-void CCodec_JpegDecoder::v_DownScale(int dest_width, int dest_height) |
-{ |
- if (m_pExtProvider) { |
- m_pExtProvider->DownScale(m_pExtContext, dest_width, dest_height); |
- return; |
- } |
- int old_scale = m_DownScale; |
- m_DownScale = FX_GetDownsampleRatio(m_OrigWidth, m_OrigHeight, dest_width, dest_height); |
- m_OutputWidth = (m_OrigWidth + m_DownScale - 1) / m_DownScale; |
- m_OutputHeight = (m_OrigHeight + m_DownScale - 1) / m_DownScale; |
- m_Pitch = (m_OutputWidth * m_nComps + 3) / 4 * 4; |
- if (old_scale != m_DownScale) { |
- m_NextLine = -1; |
- } |
} |
-FX_BOOL CCodec_JpegDecoder::v_Rewind() |
-{ |
- if (m_pExtProvider) { |
- return m_pExtProvider->Rewind(m_pExtContext); |
- } |
- if (m_bStarted) { |
- jpeg_destroy_decompress(&cinfo); |
- if (!InitDecode()) { |
- return FALSE; |
- } |
- } |
- if (setjmp(m_JmpBuf) == -1) { |
- return FALSE; |
- } |
- cinfo.scale_denom = m_nDefaultScaleDenom * m_DownScale; |
- m_OutputWidth = (m_OrigWidth + m_DownScale - 1) / m_DownScale; |
- m_OutputHeight = (m_OrigHeight + m_DownScale - 1) / m_DownScale; |
- if (!jpeg_start_decompress(&cinfo)) { |
- jpeg_destroy_decompress(&cinfo); |
- return FALSE; |
- } |
- if ((int)cinfo.output_width > m_OrigWidth) { |
- FXSYS_assert(FALSE); |
- return FALSE; |
- } |
- m_bStarted = TRUE; |
- return TRUE; |
+void CCodec_JpegDecoder::v_DownScale(int dest_width, int dest_height) { |
+ if (m_pExtProvider) { |
+ m_pExtProvider->DownScale(m_pExtContext, dest_width, dest_height); |
+ return; |
+ } |
+ int old_scale = m_DownScale; |
+ m_DownScale = |
+ FX_GetDownsampleRatio(m_OrigWidth, m_OrigHeight, dest_width, dest_height); |
+ m_OutputWidth = (m_OrigWidth + m_DownScale - 1) / m_DownScale; |
+ m_OutputHeight = (m_OrigHeight + m_DownScale - 1) / m_DownScale; |
+ m_Pitch = (m_OutputWidth * m_nComps + 3) / 4 * 4; |
+ if (old_scale != m_DownScale) { |
+ m_NextLine = -1; |
+ } |
} |
-uint8_t* CCodec_JpegDecoder::v_GetNextLine() |
-{ |
- if (m_pExtProvider) { |
- return m_pExtProvider->GetNextLine(m_pExtContext); |
- } |
- int nlines = jpeg_read_scanlines(&cinfo, &m_pScanlineBuf, 1); |
- if (nlines < 1) { |
- return NULL; |
- } |
- return m_pScanlineBuf; |
+FX_BOOL CCodec_JpegDecoder::v_Rewind() { |
+ if (m_pExtProvider) { |
+ return m_pExtProvider->Rewind(m_pExtContext); |
+ } |
+ if (m_bStarted) { |
+ jpeg_destroy_decompress(&cinfo); |
+ if (!InitDecode()) { |
+ return FALSE; |
+ } |
+ } |
+ if (setjmp(m_JmpBuf) == -1) { |
+ return FALSE; |
+ } |
+ cinfo.scale_denom = m_nDefaultScaleDenom * m_DownScale; |
+ m_OutputWidth = (m_OrigWidth + m_DownScale - 1) / m_DownScale; |
+ m_OutputHeight = (m_OrigHeight + m_DownScale - 1) / m_DownScale; |
+ if (!jpeg_start_decompress(&cinfo)) { |
+ jpeg_destroy_decompress(&cinfo); |
+ return FALSE; |
+ } |
+ if ((int)cinfo.output_width > m_OrigWidth) { |
+ FXSYS_assert(FALSE); |
+ return FALSE; |
+ } |
+ m_bStarted = TRUE; |
+ return TRUE; |
} |
-FX_DWORD CCodec_JpegDecoder::GetSrcOffset() |
-{ |
- if (m_pExtProvider) { |
- return m_pExtProvider->GetSrcOffset(m_pExtContext); |
- } |
- return (FX_DWORD)(m_SrcSize - src.bytes_in_buffer); |
+uint8_t* CCodec_JpegDecoder::v_GetNextLine() { |
+ if (m_pExtProvider) { |
+ return m_pExtProvider->GetNextLine(m_pExtContext); |
+ } |
+ int nlines = jpeg_read_scanlines(&cinfo, &m_pScanlineBuf, 1); |
+ if (nlines < 1) { |
+ return NULL; |
+ } |
+ return m_pScanlineBuf; |
} |
-ICodec_ScanlineDecoder* CCodec_JpegModule::CreateDecoder(const uint8_t* src_buf, FX_DWORD src_size, |
- int width, int height, int nComps, FX_BOOL ColorTransform) |
-{ |
- if (src_buf == NULL || src_size == 0) { |
- return NULL; |
- } |
- CCodec_JpegDecoder* pDecoder = new CCodec_JpegDecoder; |
- if (!pDecoder->Create(src_buf, src_size, width, height, nComps, ColorTransform, m_pExtProvider)) { |
- delete pDecoder; |
- return NULL; |
- } |
- return pDecoder; |
-} |
-FX_BOOL CCodec_JpegModule::LoadInfo(const uint8_t* src_buf, FX_DWORD src_size, int& width, int& height, |
- int& num_components, int& bits_per_components, FX_BOOL& color_transform, |
- uint8_t** icc_buf_ptr, FX_DWORD* icc_length) |
-{ |
- if (m_pExtProvider) { |
- return m_pExtProvider->LoadInfo(src_buf, src_size, width, height, |
- num_components, bits_per_components, color_transform, |
- icc_buf_ptr, icc_length); |
- } |
- return _JpegLoadInfo(src_buf, src_size, width, height, num_components, bits_per_components, color_transform, icc_buf_ptr, icc_length); |
+FX_DWORD CCodec_JpegDecoder::GetSrcOffset() { |
+ if (m_pExtProvider) { |
+ return m_pExtProvider->GetSrcOffset(m_pExtContext); |
+ } |
+ return (FX_DWORD)(m_SrcSize - src.bytes_in_buffer); |
} |
-FX_BOOL CCodec_JpegModule::Encode(const CFX_DIBSource* pSource, uint8_t*& dest_buf, FX_STRSIZE& dest_size, int quality, const uint8_t* icc_buf, FX_DWORD icc_length) |
-{ |
- if (m_pExtProvider) { |
- return m_pExtProvider->Encode(pSource, dest_buf, dest_size, quality, icc_buf, icc_length); |
- } |
- if(pSource->GetBPP() < 8 || pSource->GetPalette() != NULL) { |
- ASSERT(pSource->GetBPP() >= 8 && pSource->GetPalette() == NULL); |
- return FALSE; |
- } |
- _JpegEncode(pSource, dest_buf, dest_size, quality, icc_buf, icc_length); |
- return TRUE; |
+ICodec_ScanlineDecoder* CCodec_JpegModule::CreateDecoder( |
+ const uint8_t* src_buf, |
+ FX_DWORD src_size, |
+ int width, |
+ int height, |
+ int nComps, |
+ FX_BOOL ColorTransform) { |
+ if (src_buf == NULL || src_size == 0) { |
+ return NULL; |
+ } |
+ CCodec_JpegDecoder* pDecoder = new CCodec_JpegDecoder; |
+ if (!pDecoder->Create(src_buf, src_size, width, height, nComps, |
+ ColorTransform, m_pExtProvider)) { |
+ delete pDecoder; |
+ return NULL; |
+ } |
+ return pDecoder; |
+} |
+FX_BOOL CCodec_JpegModule::LoadInfo(const uint8_t* src_buf, |
+ FX_DWORD src_size, |
+ int& width, |
+ int& height, |
+ int& num_components, |
+ int& bits_per_components, |
+ FX_BOOL& color_transform, |
+ uint8_t** icc_buf_ptr, |
+ FX_DWORD* icc_length) { |
+ if (m_pExtProvider) { |
+ return m_pExtProvider->LoadInfo(src_buf, src_size, width, height, |
+ num_components, bits_per_components, |
+ color_transform, icc_buf_ptr, icc_length); |
+ } |
+ return _JpegLoadInfo(src_buf, src_size, width, height, num_components, |
+ bits_per_components, color_transform, icc_buf_ptr, |
+ icc_length); |
+} |
+FX_BOOL CCodec_JpegModule::Encode(const CFX_DIBSource* pSource, |
+ uint8_t*& dest_buf, |
+ FX_STRSIZE& dest_size, |
+ int quality, |
+ const uint8_t* icc_buf, |
+ FX_DWORD icc_length) { |
+ if (m_pExtProvider) { |
+ return m_pExtProvider->Encode(pSource, dest_buf, dest_size, quality, |
+ icc_buf, icc_length); |
+ } |
+ if (pSource->GetBPP() < 8 || pSource->GetPalette() != NULL) { |
+ ASSERT(pSource->GetBPP() >= 8 && pSource->GetPalette() == NULL); |
+ return FALSE; |
+ } |
+ _JpegEncode(pSource, dest_buf, dest_size, quality, icc_buf, icc_length); |
+ return TRUE; |
} |
struct FXJPEG_Context { |
- jmp_buf m_JumpMark; |
- jpeg_decompress_struct m_Info; |
- jpeg_error_mgr m_ErrMgr; |
- jpeg_source_mgr m_SrcMgr; |
- unsigned int m_SkipSize; |
- void* (*m_AllocFunc)(unsigned int); |
- void (*m_FreeFunc)(void*); |
+ jmp_buf m_JumpMark; |
+ jpeg_decompress_struct m_Info; |
+ jpeg_error_mgr m_ErrMgr; |
+ jpeg_source_mgr m_SrcMgr; |
+ unsigned int m_SkipSize; |
+ void* (*m_AllocFunc)(unsigned int); |
+ void (*m_FreeFunc)(void*); |
}; |
extern "C" { |
- static void _error_fatal1(j_common_ptr cinfo) |
- { |
- longjmp(((FXJPEG_Context*)cinfo->client_data)->m_JumpMark, -1); |
- } |
+static void _error_fatal1(j_common_ptr cinfo) { |
+ longjmp(((FXJPEG_Context*)cinfo->client_data)->m_JumpMark, -1); |
+} |
}; |
extern "C" { |
- static void _src_skip_data1(struct jpeg_decompress_struct* cinfo, long num) |
- { |
- if (cinfo->src->bytes_in_buffer < (size_t)num) { |
- ((FXJPEG_Context*)cinfo->client_data)->m_SkipSize = (unsigned int)(num - cinfo->src->bytes_in_buffer); |
- cinfo->src->bytes_in_buffer = 0; |
- } else { |
- cinfo->src->next_input_byte += num; |
- cinfo->src->bytes_in_buffer -= num; |
- } |
- } |
+static void _src_skip_data1(struct jpeg_decompress_struct* cinfo, long num) { |
+ if (cinfo->src->bytes_in_buffer < (size_t)num) { |
+ ((FXJPEG_Context*)cinfo->client_data)->m_SkipSize = |
+ (unsigned int)(num - cinfo->src->bytes_in_buffer); |
+ cinfo->src->bytes_in_buffer = 0; |
+ } else { |
+ cinfo->src->next_input_byte += num; |
+ cinfo->src->bytes_in_buffer -= num; |
+ } |
+} |
}; |
-static void* jpeg_alloc_func(unsigned int size) |
-{ |
- return FX_Alloc(char, size); |
-} |
-static void jpeg_free_func(void* p) |
-{ |
- FX_Free(p); |
-} |
-void* CCodec_JpegModule::Start() |
-{ |
- if (m_pExtProvider) { |
- return m_pExtProvider->Start(); |
- } |
- FXJPEG_Context* p = (FXJPEG_Context*)FX_Alloc(uint8_t, sizeof(FXJPEG_Context)); |
- p->m_AllocFunc = jpeg_alloc_func; |
- p->m_FreeFunc = jpeg_free_func; |
- p->m_ErrMgr.error_exit = _error_fatal1; |
- p->m_ErrMgr.emit_message = _error_do_nothing1; |
- p->m_ErrMgr.output_message = _error_do_nothing; |
- p->m_ErrMgr.format_message = _error_do_nothing2; |
- p->m_ErrMgr.reset_error_mgr = _error_do_nothing; |
- p->m_SrcMgr.init_source = _src_do_nothing; |
- p->m_SrcMgr.term_source = _src_do_nothing; |
- p->m_SrcMgr.skip_input_data = _src_skip_data1; |
- p->m_SrcMgr.fill_input_buffer = _src_fill_buffer; |
- p->m_SrcMgr.resync_to_restart = _src_resync; |
- p->m_Info.client_data = p; |
- p->m_Info.err = &p->m_ErrMgr; |
- if (setjmp(p->m_JumpMark) == -1) { |
- return 0; |
- } |
- jpeg_create_decompress(&p->m_Info); |
- p->m_Info.src = &p->m_SrcMgr; |
- p->m_SkipSize = 0; |
- return p; |
+static void* jpeg_alloc_func(unsigned int size) { |
+ return FX_Alloc(char, size); |
} |
-void CCodec_JpegModule::Finish(void* pContext) |
-{ |
- if (m_pExtProvider) { |
- m_pExtProvider->Finish(pContext); |
- return; |
- } |
- FXJPEG_Context* p = (FXJPEG_Context*)pContext; |
- jpeg_destroy_decompress(&p->m_Info); |
- p->m_FreeFunc(p); |
-} |
-void CCodec_JpegModule::Input(void* pContext, const unsigned char* src_buf, FX_DWORD src_size) |
-{ |
- if (m_pExtProvider) { |
- m_pExtProvider->Input(pContext, src_buf, src_size); |
- return; |
- } |
- FXJPEG_Context* p = (FXJPEG_Context*)pContext; |
- if (p->m_SkipSize) { |
- if (p->m_SkipSize > src_size) { |
- p->m_SrcMgr.bytes_in_buffer = 0; |
- p->m_SkipSize -= src_size; |
- return; |
- } |
- src_size -= p->m_SkipSize; |
- src_buf += p->m_SkipSize; |
- p->m_SkipSize = 0; |
- } |
- p->m_SrcMgr.next_input_byte = src_buf; |
- p->m_SrcMgr.bytes_in_buffer = src_size; |
+static void jpeg_free_func(void* p) { |
+ FX_Free(p); |
} |
-int CCodec_JpegModule::ReadHeader(void* pContext, int* width, int* height, int* nComps) |
-{ |
- if (m_pExtProvider) { |
- return m_pExtProvider->ReadHeader(pContext, width, height, nComps); |
- } |
- FXJPEG_Context* p = (FXJPEG_Context*)pContext; |
- if (setjmp(p->m_JumpMark) == -1) { |
- return 1; |
- } |
- int ret = jpeg_read_header(&p->m_Info, true); |
- if (ret == JPEG_SUSPENDED) { |
- return 2; |
- } |
- if (ret != JPEG_HEADER_OK) { |
- return 1; |
- } |
- *width = p->m_Info.image_width; |
- *height = p->m_Info.image_height; |
- *nComps = p->m_Info.num_components; |
+void* CCodec_JpegModule::Start() { |
+ if (m_pExtProvider) { |
+ return m_pExtProvider->Start(); |
+ } |
+ FXJPEG_Context* p = |
+ (FXJPEG_Context*)FX_Alloc(uint8_t, sizeof(FXJPEG_Context)); |
+ p->m_AllocFunc = jpeg_alloc_func; |
+ p->m_FreeFunc = jpeg_free_func; |
+ p->m_ErrMgr.error_exit = _error_fatal1; |
+ p->m_ErrMgr.emit_message = _error_do_nothing1; |
+ p->m_ErrMgr.output_message = _error_do_nothing; |
+ p->m_ErrMgr.format_message = _error_do_nothing2; |
+ p->m_ErrMgr.reset_error_mgr = _error_do_nothing; |
+ p->m_SrcMgr.init_source = _src_do_nothing; |
+ p->m_SrcMgr.term_source = _src_do_nothing; |
+ p->m_SrcMgr.skip_input_data = _src_skip_data1; |
+ p->m_SrcMgr.fill_input_buffer = _src_fill_buffer; |
+ p->m_SrcMgr.resync_to_restart = _src_resync; |
+ p->m_Info.client_data = p; |
+ p->m_Info.err = &p->m_ErrMgr; |
+ if (setjmp(p->m_JumpMark) == -1) { |
return 0; |
+ } |
+ jpeg_create_decompress(&p->m_Info); |
+ p->m_Info.src = &p->m_SrcMgr; |
+ p->m_SkipSize = 0; |
+ return p; |
} |
-int CCodec_JpegModule::StartScanline(void* pContext, int down_scale) |
-{ |
- if (m_pExtProvider) { |
- return m_pExtProvider->StartScanline(pContext, down_scale); |
- } |
- FXJPEG_Context* p = (FXJPEG_Context*)pContext; |
- if (setjmp(p->m_JumpMark) == -1) { |
- return 0; |
- } |
- p->m_Info.scale_denom = down_scale; |
- return jpeg_start_decompress(&p->m_Info); |
+void CCodec_JpegModule::Finish(void* pContext) { |
+ if (m_pExtProvider) { |
+ m_pExtProvider->Finish(pContext); |
+ return; |
+ } |
+ FXJPEG_Context* p = (FXJPEG_Context*)pContext; |
+ jpeg_destroy_decompress(&p->m_Info); |
+ p->m_FreeFunc(p); |
} |
-FX_BOOL CCodec_JpegModule::ReadScanline(void* pContext, unsigned char* dest_buf) |
-{ |
- if (m_pExtProvider) { |
- return m_pExtProvider->ReadScanline(pContext, dest_buf); |
- } |
- FXJPEG_Context* p = (FXJPEG_Context*)pContext; |
- if (setjmp(p->m_JumpMark) == -1) { |
- return FALSE; |
- } |
- int nlines = jpeg_read_scanlines(&p->m_Info, &dest_buf, 1); |
- return nlines == 1; |
+void CCodec_JpegModule::Input(void* pContext, |
+ const unsigned char* src_buf, |
+ FX_DWORD src_size) { |
+ if (m_pExtProvider) { |
+ m_pExtProvider->Input(pContext, src_buf, src_size); |
+ return; |
+ } |
+ FXJPEG_Context* p = (FXJPEG_Context*)pContext; |
+ if (p->m_SkipSize) { |
+ if (p->m_SkipSize > src_size) { |
+ p->m_SrcMgr.bytes_in_buffer = 0; |
+ p->m_SkipSize -= src_size; |
+ return; |
+ } |
+ src_size -= p->m_SkipSize; |
+ src_buf += p->m_SkipSize; |
+ p->m_SkipSize = 0; |
+ } |
+ p->m_SrcMgr.next_input_byte = src_buf; |
+ p->m_SrcMgr.bytes_in_buffer = src_size; |
} |
-FX_DWORD CCodec_JpegModule::GetAvailInput(void* pContext, uint8_t** avail_buf_ptr) |
-{ |
- if (m_pExtProvider) { |
- return m_pExtProvider->GetAvailInput(pContext, avail_buf_ptr); |
- } |
- if(avail_buf_ptr != NULL) { |
- *avail_buf_ptr = NULL; |
- if(((FXJPEG_Context*)pContext)->m_SrcMgr.bytes_in_buffer > 0) { |
- *avail_buf_ptr = (uint8_t*)((FXJPEG_Context*)pContext)->m_SrcMgr.next_input_byte; |
- } |
- } |
- return (FX_DWORD)((FXJPEG_Context*)pContext)->m_SrcMgr.bytes_in_buffer; |
+int CCodec_JpegModule::ReadHeader(void* pContext, |
+ int* width, |
+ int* height, |
+ int* nComps) { |
+ if (m_pExtProvider) { |
+ return m_pExtProvider->ReadHeader(pContext, width, height, nComps); |
+ } |
+ FXJPEG_Context* p = (FXJPEG_Context*)pContext; |
+ if (setjmp(p->m_JumpMark) == -1) { |
+ return 1; |
+ } |
+ int ret = jpeg_read_header(&p->m_Info, true); |
+ if (ret == JPEG_SUSPENDED) { |
+ return 2; |
+ } |
+ if (ret != JPEG_HEADER_OK) { |
+ return 1; |
+ } |
+ *width = p->m_Info.image_width; |
+ *height = p->m_Info.image_height; |
+ *nComps = p->m_Info.num_components; |
+ return 0; |
+} |
+int CCodec_JpegModule::StartScanline(void* pContext, int down_scale) { |
+ if (m_pExtProvider) { |
+ return m_pExtProvider->StartScanline(pContext, down_scale); |
+ } |
+ FXJPEG_Context* p = (FXJPEG_Context*)pContext; |
+ if (setjmp(p->m_JumpMark) == -1) { |
+ return 0; |
+ } |
+ p->m_Info.scale_denom = down_scale; |
+ return jpeg_start_decompress(&p->m_Info); |
+} |
+FX_BOOL CCodec_JpegModule::ReadScanline(void* pContext, |
+ unsigned char* dest_buf) { |
+ if (m_pExtProvider) { |
+ return m_pExtProvider->ReadScanline(pContext, dest_buf); |
+ } |
+ FXJPEG_Context* p = (FXJPEG_Context*)pContext; |
+ if (setjmp(p->m_JumpMark) == -1) { |
+ return FALSE; |
+ } |
+ int nlines = jpeg_read_scanlines(&p->m_Info, &dest_buf, 1); |
+ return nlines == 1; |
+} |
+FX_DWORD CCodec_JpegModule::GetAvailInput(void* pContext, |
+ uint8_t** avail_buf_ptr) { |
+ if (m_pExtProvider) { |
+ return m_pExtProvider->GetAvailInput(pContext, avail_buf_ptr); |
+ } |
+ if (avail_buf_ptr != NULL) { |
+ *avail_buf_ptr = NULL; |
+ if (((FXJPEG_Context*)pContext)->m_SrcMgr.bytes_in_buffer > 0) { |
+ *avail_buf_ptr = |
+ (uint8_t*)((FXJPEG_Context*)pContext)->m_SrcMgr.next_input_byte; |
+ } |
+ } |
+ return (FX_DWORD)((FXJPEG_Context*)pContext)->m_SrcMgr.bytes_in_buffer; |
} |