Move core/src/ up to core/.

core/src/fxcodec/codec/fx_codec_jpeg.cpp

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
deleted file mode 100644
index 14cc194db4545f95d198324b884cb3469b017386..0000000000000000000000000000000000000000
--- a/core/src/fxcodec/codec/fx_codec_jpeg.cpp
+++ /dev/null
@@ -1,692 +0,0 @@
-// Copyright 2014 PDFium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
-
-#include <setjmp.h>
-
-#include "core/include/fxcodec/fx_codec.h"
-#include "core/include/fxcrt/fx_safe_types.h"
-#include "core/include/fxge/fx_dib.h"
-#include "core/src/fxcodec/codec/codec_int.h"
-
-extern "C" {
-#undef FAR
-#if defined(USE_SYSTEM_LIBJPEG)
-#include <jpeglib.h>
-#elif defined(USE_LIBJPEG_TURBO)
-#include "third_party/libjpeg_turbo/jpeglib.h"
-#else
-#include "third_party/libjpeg/jpeglib.h"
-#endif
-}
-
-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++;
-  }
-}
-};
-extern "C" {
-static void _src_do_nothing(struct jpeg_decompress_struct* cinfo) {}
-};
-extern "C" {
-static void _error_fatal(j_common_ptr cinfo) {
-  longjmp(*(jmp_buf*)cinfo->client_data, -1);
-}
-};
-extern "C" {
-static void _src_skip_data(struct jpeg_decompress_struct* cinfo, long num) {
-  if (num > (long)cinfo->src->bytes_in_buffer) {
-    _error_fatal((j_common_ptr)cinfo);
-  }
-  cinfo->src->next_input_byte += num;
-  cinfo->src->bytes_in_buffer -= num;
-}
-};
-extern "C" {
-static boolean _src_fill_buffer(j_decompress_ptr cinfo) {
-  return 0;
-}
-};
-extern "C" {
-static boolean _src_resync(j_decompress_ptr cinfo, int desired) {
-  return 0;
-}
-};
-extern "C" {
-static void _error_do_nothing(j_common_ptr cinfo) {}
-};
-extern "C" {
-static void _error_do_nothing1(j_common_ptr cinfo, int) {}
-};
-extern "C" {
-static void _error_do_nothing2(j_common_ptr cinfo, char*) {}
-};
-#define JPEG_MARKER_EXIF (JPEG_APP0 + 1)
-#define JPEG_MARKER_ICC (JPEG_APP0 + 2)
-#define JPEG_MARKER_AUTHORTIME (JPEG_APP0 + 3)
-#define JPEG_MARKER_MAXSIZE 0xFFFF
-#define JPEG_OVERHEAD_LEN 14
-static FX_BOOL _JpegEmbedIccProfile(j_compress_ptr cinfo,
-                                    const uint8_t* icc_buf_ptr,
-                                    FX_DWORD icc_length) {
-  if (!icc_buf_ptr || 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) {}
-};
-extern "C" {
-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;
-
-  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) {
-      uint8_t* dest_scan = line_buf;
-      if (nComponents == 3) {
-        for (FX_DWORD 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 (FX_DWORD i = 0; i < pitch; i++) {
-          *dest_scan++ = ~*src_scan++;
-        }
-      }
-      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);
-  FX_Free(line_buf);
-  dest_size = dest_buf_length - (FX_STRSIZE)dest.free_in_buffer;
-}
-
-#ifdef PDF_ENABLE_XFA
-static void _JpegLoadAttribute(struct jpeg_decompress_struct* pInfo,
-                               CFX_DIBAttribute* pAttribute) {
-  if (pInfo == NULL || pAttribute == NULL) {
-    return;
-  }
-  if (pAttribute) {
-    pAttribute->m_nXDPI = pInfo->X_density;
-    pAttribute->m_nYDPI = pInfo->Y_density;
-    pAttribute->m_wDPIUnit = pInfo->density_unit;
-  }
-}
-#endif  // PDF_ENABLE_XFA
-
-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) {
-    *icc_buf_ptr = NULL;
-  }
-  if (icc_length) {
-    *icc_length = 0;
-  }
-  jpeg_destroy_decompress(&cinfo);
-  return TRUE;
-}
-
-class CCodec_JpegDecoder : public CCodec_ScanlineDecoder {
- public:
-  CCodec_JpegDecoder();
-  ~CCodec_JpegDecoder() override;
-
-  FX_BOOL Create(const uint8_t* src_buf,
-                 FX_DWORD src_size,
-                 int width,
-                 int height,
-                 int nComps,
-                 FX_BOOL ColorTransform);
-  void Destroy() { delete this; }
-
-  // CCodec_ScanlineDecoder
-  void v_DownScale(int dest_width, int dest_height) override;
-  FX_BOOL v_Rewind() override;
-  uint8_t* v_GetNextLine() override;
-  FX_DWORD GetSrcOffset() override;
-
-  FX_BOOL InitDecode();
-
-  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 m_bInited;
-  FX_BOOL m_bStarted;
-  FX_BOOL m_bJpegTransform;
-
- protected:
-  FX_DWORD m_nDefaultScaleDenom;
-};
-
-CCodec_JpegDecoder::CCodec_JpegDecoder() {
-  m_pScanlineBuf = NULL;
-  m_DownScale = 1;
-  m_bStarted = FALSE;
-  m_bInited = FALSE;
-  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() {
-  FX_Free(m_pScanlineBuf);
-  if (m_bInited) {
-    jpeg_destroy_decompress(&cinfo);
-  }
-}
-FX_BOOL CCodec_JpegDecoder::InitDecode() {
-  cinfo.err = &jerr;
-  cinfo.client_data = &m_JmpBuf;
-  if (setjmp(m_JmpBuf) == -1) {
-    return FALSE;
-  }
-  jpeg_create_decompress(&cinfo);
-  m_bInited = TRUE;
-  cinfo.src = &src;
-  src.bytes_in_buffer = m_SrcSize;
-  src.next_input_byte = m_SrcBuf;
-  if (setjmp(m_JmpBuf) == -1) {
-    jpeg_destroy_decompress(&cinfo);
-    m_bInited = FALSE;
-    return FALSE;
-  }
-  cinfo.image_width = m_OrigWidth;
-  cinfo.image_height = m_OrigHeight;
-  int ret = jpeg_read_header(&cinfo, TRUE);
-  if (ret != JPEG_HEADER_OK) {
-    return FALSE;
-  }
-  if (cinfo.saw_Adobe_marker) {
-    m_bJpegTransform = TRUE;
-  }
-  if (cinfo.num_components == 3 && !m_bJpegTransform) {
-    cinfo.out_color_space = cinfo.jpeg_color_space;
-  }
-  m_OrigWidth = cinfo.image_width;
-  m_OrigHeight = cinfo.image_height;
-  m_OutputWidth = m_OrigWidth;
-  m_OutputHeight = m_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) {
-  _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 =
-      (static_cast<FX_DWORD>(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;
-}
-}
-void CCodec_JpegDecoder::v_DownScale(int dest_width, int dest_height) {
-  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 = (static_cast<FX_DWORD>(m_OutputWidth) * m_nComps + 3) / 4 * 4;
-  if (old_scale != m_DownScale) {
-    m_NextLine = -1;
-  }
-}
-FX_BOOL CCodec_JpegDecoder::v_Rewind() {
-  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;
-}
-uint8_t* CCodec_JpegDecoder::v_GetNextLine() {
-  if (setjmp(m_JmpBuf) == -1)
-    return nullptr;
-
-  int nlines = jpeg_read_scanlines(&cinfo, &m_pScanlineBuf, 1);
-  if (nlines < 1) {
-    return nullptr;
-  }
-  return m_pScanlineBuf;
-}
-FX_DWORD CCodec_JpegDecoder::GetSrcOffset() {
-  return (FX_DWORD)(m_SrcSize - src.bytes_in_buffer);
-}
-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 || src_size == 0) {
-    return NULL;
-  }
-  CCodec_JpegDecoder* pDecoder = new CCodec_JpegDecoder;
-  if (!pDecoder->Create(src_buf, src_size, width, height, nComps,
-                        ColorTransform)) {
-    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) {
-  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 (pSource->GetBPP() < 8 || pSource->GetPalette())
-    return FALSE;
-
-  _JpegEncode(pSource, dest_buf, dest_size, quality, icc_buf, icc_length);
-  return TRUE;
-}
-struct FXJPEG_Context {
-  jmp_buf m_JumpMark;
-  jpeg_decompress_struct m_Info;
-  jpeg_error_mgr m_ErrMgr;
-  jpeg_source_mgr m_SrcMgr;
-  unsigned int m_SkipSize;
-  void* (*m_AllocFunc)(unsigned int);
-  void (*m_FreeFunc)(void*);
-};
-extern "C" {
-static void _error_fatal1(j_common_ptr cinfo) {
-  longjmp(((FXJPEG_Context*)cinfo->client_data)->m_JumpMark, -1);
-}
-};
-extern "C" {
-static void _src_skip_data1(struct jpeg_decompress_struct* cinfo, long num) {
-  if (cinfo->src->bytes_in_buffer < (size_t)num) {
-    ((FXJPEG_Context*)cinfo->client_data)->m_SkipSize =
-        (unsigned int)(num - cinfo->src->bytes_in_buffer);
-    cinfo->src->bytes_in_buffer = 0;
-  } else {
-    cinfo->src->next_input_byte += num;
-    cinfo->src->bytes_in_buffer -= num;
-  }
-}
-};
-static void* jpeg_alloc_func(unsigned int size) {
-  return FX_Alloc(char, size);
-}
-static void jpeg_free_func(void* p) {
-  FX_Free(p);
-}
-void* CCodec_JpegModule::Start() {
-  FXJPEG_Context* p = FX_Alloc(FXJPEG_Context, 1);
-  p->m_AllocFunc = jpeg_alloc_func;
-  p->m_FreeFunc = jpeg_free_func;
-  p->m_ErrMgr.error_exit = _error_fatal1;
-  p->m_ErrMgr.emit_message = _error_do_nothing1;
-  p->m_ErrMgr.output_message = _error_do_nothing;
-  p->m_ErrMgr.format_message = _error_do_nothing2;
-  p->m_ErrMgr.reset_error_mgr = _error_do_nothing;
-  p->m_SrcMgr.init_source = _src_do_nothing;
-  p->m_SrcMgr.term_source = _src_do_nothing;
-  p->m_SrcMgr.skip_input_data = _src_skip_data1;
-  p->m_SrcMgr.fill_input_buffer = _src_fill_buffer;
-  p->m_SrcMgr.resync_to_restart = _src_resync;
-  p->m_Info.client_data = p;
-  p->m_Info.err = &p->m_ErrMgr;
-  if (setjmp(p->m_JumpMark) == -1) {
-    return 0;
-  }
-  jpeg_create_decompress(&p->m_Info);
-  p->m_Info.src = &p->m_SrcMgr;
-  p->m_SkipSize = 0;
-  return p;
-}
-void CCodec_JpegModule::Finish(void* pContext) {
-  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) {
-  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;
-}
-
-#ifdef PDF_ENABLE_XFA
-int CCodec_JpegModule::ReadHeader(void* pContext,
-                                  int* width,
-                                  int* height,
-                                  int* nComps,
-                                  CFX_DIBAttribute* pAttribute) {
-#else   // PDF_ENABLE_XFA
-int CCodec_JpegModule::ReadHeader(void* pContext,
-                                  int* width,
-                                  int* height,
-                                  int* nComps) {
-#endif  // PDF_ENABLE_XFA
-  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;
-#ifdef PDF_ENABLE_XFA
-  _JpegLoadAttribute(&p->m_Info, pAttribute);
-#endif
-  return 0;
-}
-int CCodec_JpegModule::StartScanline(void* pContext, int 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) {
-  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 (avail_buf_ptr) {
-    *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;
-}