Move core/src/ up to core/.

This CL moves the core/src/ files up to core/ and fixes up the include guards,
includes and build files.

R=tsepez@chromium.org

Review URL: https://codereview.chromium.org/1800523005 .

1 files changed, 0 insertions, 1745 deletions

diff --git a/core/src/fxge/dib/fx_dib_main.cpp b/core/src/fxge/dib/fx_dib_main.cpp
deleted file mode 100644
index ab4c170af5..0000000000
--- a/core/src/fxge/dib/fx_dib_main.cpp
+++ /dev/null
@@ -1,1745 +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 "core/include/fxge/fx_dib.h"
-
-#include <limits.h>
-
-#include "core/include/fxcodec/fx_codec.h"
-#include "core/include/fxge/fx_ge.h"
-#include "core/src/fxge/dib/dib_int.h"
-
-FX_BOOL ConvertBuffer(FXDIB_Format dest_format,
-                      uint8_t* dest_buf,
-                      int dest_pitch,
-                      int width,
-                      int height,
-                      const CFX_DIBSource* pSrcBitmap,
-                      int src_left,
-                      int src_top,
-                      FX_DWORD*& pal,
-                      void* pIccTransform);
-void CmykDecode(FX_DWORD cmyk, int& c, int& m, int& y, int& k) {
-  c = FXSYS_GetCValue(cmyk);
-  m = FXSYS_GetMValue(cmyk);
-  y = FXSYS_GetYValue(cmyk);
-  k = FXSYS_GetKValue(cmyk);
-}
-void ArgbDecode(FX_DWORD argb, int& a, int& r, int& g, int& b) {
-  a = FXARGB_A(argb);
-  r = FXARGB_R(argb);
-  g = FXARGB_G(argb);
-  b = FXARGB_B(argb);
-}
-void ArgbDecode(FX_DWORD argb, int& a, FX_COLORREF& rgb) {
-  a = FXARGB_A(argb);
-  rgb = FXSYS_RGB(FXARGB_R(argb), FXARGB_G(argb), FXARGB_B(argb));
-}
-FX_DWORD ArgbEncode(int a, FX_COLORREF rgb) {
-  return FXARGB_MAKE(a, FXSYS_GetRValue(rgb), FXSYS_GetGValue(rgb),
-                     FXSYS_GetBValue(rgb));
-}
-
-CFX_DIBSource::CFX_DIBSource() {
-  m_bpp = 0;
-  m_AlphaFlag = 0;
-  m_Width = m_Height = 0;
-  m_Pitch = 0;
-  m_pPalette = NULL;
-  m_pAlphaMask = NULL;
-}
-
-CFX_DIBSource::~CFX_DIBSource() {
-  FX_Free(m_pPalette);
-  delete m_pAlphaMask;
-}
-
-uint8_t* CFX_DIBSource::GetBuffer() const {
-  return NULL;
-}
-
-FX_BOOL CFX_DIBSource::SkipToScanline(int line, IFX_Pause* pPause) const {
-  return FALSE;
-}
-
-CFX_DIBitmap::CFX_DIBitmap() {
-  m_bExtBuf = FALSE;
-  m_pBuffer = NULL;
-  m_pPalette = NULL;
-}
-
-#define _MAX_OOM_LIMIT_ 12000000
-FX_BOOL CFX_DIBitmap::Create(int width,
-                             int height,
-                             FXDIB_Format format,
-                             uint8_t* pBuffer,
-                             int pitch) {
-  m_pBuffer = NULL;
-  m_bpp = (uint8_t)format;
-  m_AlphaFlag = (uint8_t)(format >> 8);
-  m_Width = m_Height = m_Pitch = 0;
-  if (width <= 0 || height <= 0 || pitch < 0) {
-    return FALSE;
-  }
-  if ((INT_MAX - 31) / width < (format & 0xff)) {
-    return FALSE;
-  }
-  if (!pitch) {
-    pitch = (width * (format & 0xff) + 31) / 32 * 4;
-  }
-  if ((1 << 30) / pitch < height) {
-    return FALSE;
-  }
-  if (pBuffer) {
-    m_pBuffer = pBuffer;
-    m_bExtBuf = TRUE;
-  } else {
-    int size = pitch * height + 4;
-    int oomlimit = _MAX_OOM_LIMIT_;
-    if (oomlimit >= 0 && size >= oomlimit) {
-      m_pBuffer = FX_TryAlloc(uint8_t, size);
-      if (!m_pBuffer) {
-        return FALSE;
-      }
-    } else {
-      m_pBuffer = FX_Alloc(uint8_t, size);
-    }
-  }
-  m_Width = width;
-  m_Height = height;
-  m_Pitch = pitch;
-  if (HasAlpha() && format != FXDIB_Argb) {
-    FX_BOOL ret = TRUE;
-    ret = BuildAlphaMask();
-    if (!ret) {
-      if (!m_bExtBuf) {
-        FX_Free(m_pBuffer);
-        m_pBuffer = NULL;
-        m_Width = m_Height = m_Pitch = 0;
-        return FALSE;
-      }
-    }
-  }
-  return TRUE;
-}
-
-FX_BOOL CFX_DIBitmap::Copy(const CFX_DIBSource* pSrc) {
-  if (m_pBuffer) {
-    return FALSE;
-  }
-  if (!Create(pSrc->GetWidth(), pSrc->GetHeight(), pSrc->GetFormat())) {
-    return FALSE;
-  }
-  CopyPalette(pSrc->GetPalette());
-  CopyAlphaMask(pSrc->m_pAlphaMask);
-  for (int row = 0; row < pSrc->GetHeight(); row++) {
-    FXSYS_memcpy(m_pBuffer + row * m_Pitch, pSrc->GetScanline(row), m_Pitch);
-  }
-  return TRUE;
-}
-
-CFX_DIBitmap::~CFX_DIBitmap() {
-  if (!m_bExtBuf)
-    FX_Free(m_pBuffer);
-
-  m_pBuffer = nullptr;
-}
-
-uint8_t* CFX_DIBitmap::GetBuffer() const {
-  return m_pBuffer;
-}
-
-const uint8_t* CFX_DIBitmap::GetScanline(int line) const {
-  return m_pBuffer ? m_pBuffer + line * m_Pitch : nullptr;
-}
-
-void CFX_DIBitmap::TakeOver(CFX_DIBitmap* pSrcBitmap) {
-  if (!m_bExtBuf)
-    FX_Free(m_pBuffer);
-
-  FX_Free(m_pPalette);
-  delete m_pAlphaMask;
-  m_pBuffer = pSrcBitmap->m_pBuffer;
-  m_pPalette = pSrcBitmap->m_pPalette;
-  m_pAlphaMask = pSrcBitmap->m_pAlphaMask;
-  pSrcBitmap->m_pBuffer = nullptr;
-  pSrcBitmap->m_pPalette = nullptr;
-  pSrcBitmap->m_pAlphaMask = nullptr;
-  m_bpp = pSrcBitmap->m_bpp;
-  m_bExtBuf = pSrcBitmap->m_bExtBuf;
-  m_AlphaFlag = pSrcBitmap->m_AlphaFlag;
-  m_Width = pSrcBitmap->m_Width;
-  m_Height = pSrcBitmap->m_Height;
-  m_Pitch = pSrcBitmap->m_Pitch;
-}
-
-CFX_DIBitmap* CFX_DIBSource::Clone(const FX_RECT* pClip) const {
-  FX_RECT rect(0, 0, m_Width, m_Height);
-  if (pClip) {
-    rect.Intersect(*pClip);
-    if (rect.IsEmpty()) {
-      return NULL;
-    }
-  }
-  CFX_DIBitmap* pNewBitmap = new CFX_DIBitmap;
-  if (!pNewBitmap->Create(rect.Width(), rect.Height(), GetFormat())) {
-    delete pNewBitmap;
-    return NULL;
-  }
-  pNewBitmap->CopyPalette(m_pPalette);
-  pNewBitmap->CopyAlphaMask(m_pAlphaMask, pClip);
-  if (GetBPP() == 1 && rect.left % 8 != 0) {
-    int left_shift = rect.left % 32;
-    int right_shift = 32 - left_shift;
-    int dword_count = pNewBitmap->m_Pitch / 4;
-    for (int row = rect.top; row < rect.bottom; row++) {
-      FX_DWORD* src_scan = (FX_DWORD*)GetScanline(row) + rect.left / 32;
-      FX_DWORD* dest_scan = (FX_DWORD*)pNewBitmap->GetScanline(row - rect.top);
-      for (int i = 0; i < dword_count; i++) {
-        dest_scan[i] =
-            (src_scan[i] << left_shift) | (src_scan[i + 1] >> right_shift);
-      }
-    }
-  } else {
-    int copy_len = (pNewBitmap->GetWidth() * pNewBitmap->GetBPP() + 7) / 8;
-    if (m_Pitch < (FX_DWORD)copy_len) {
-      copy_len = m_Pitch;
-    }
-    for (int row = rect.top; row < rect.bottom; row++) {
-      const uint8_t* src_scan = GetScanline(row) + rect.left * m_bpp / 8;
-      uint8_t* dest_scan = (uint8_t*)pNewBitmap->GetScanline(row - rect.top);
-      FXSYS_memcpy(dest_scan, src_scan, copy_len);
-    }
-  }
-  return pNewBitmap;
-}
-void CFX_DIBSource::BuildPalette() {
-  if (m_pPalette) {
-    return;
-  }
-  if (GetBPP() == 1) {
-    m_pPalette = FX_Alloc(FX_DWORD, 2);
-    if (IsCmykImage()) {
-      m_pPalette[0] = 0xff;
-      m_pPalette[1] = 0;
-    } else {
-      m_pPalette[0] = 0xff000000;
-      m_pPalette[1] = 0xffffffff;
-    }
-  } else if (GetBPP() == 8) {
-    m_pPalette = FX_Alloc(FX_DWORD, 256);
-    if (IsCmykImage()) {
-      for (int i = 0; i < 256; i++) {
-        m_pPalette[i] = 0xff - i;
-      }
-    } else {
-      for (int i = 0; i < 256; i++) {
-        m_pPalette[i] = 0xff000000 | (i * 0x10101);
-      }
-    }
-  }
-}
-FX_BOOL CFX_DIBSource::BuildAlphaMask() {
-  if (m_pAlphaMask) {
-    return TRUE;
-  }
-  m_pAlphaMask = new CFX_DIBitmap;
-  if (!m_pAlphaMask->Create(m_Width, m_Height, FXDIB_8bppMask)) {
-    delete m_pAlphaMask;
-    m_pAlphaMask = NULL;
-    return FALSE;
-  }
-  FXSYS_memset(m_pAlphaMask->GetBuffer(), 0xff,
-               m_pAlphaMask->GetHeight() * m_pAlphaMask->GetPitch());
-  return TRUE;
-}
-FX_DWORD CFX_DIBSource::GetPaletteEntry(int index) const {
-  ASSERT((GetBPP() == 1 || GetBPP() == 8) && !IsAlphaMask());
-  if (m_pPalette) {
-    return m_pPalette[index];
-  }
-  if (IsCmykImage()) {
-    if (GetBPP() == 1) {
-      return index ? 0 : 0xff;
-    }
-    return 0xff - index;
-  }
-  if (GetBPP() == 1) {
-    return index ? 0xffffffff : 0xff000000;
-  }
-  return index * 0x10101 | 0xff000000;
-}
-void CFX_DIBSource::SetPaletteEntry(int index, FX_DWORD color) {
-  ASSERT((GetBPP() == 1 || GetBPP() == 8) && !IsAlphaMask());
-  if (!m_pPalette) {
-    BuildPalette();
-  }
-  m_pPalette[index] = color;
-}
-int CFX_DIBSource::FindPalette(FX_DWORD color) const {
-  ASSERT((GetBPP() == 1 || GetBPP() == 8) && !IsAlphaMask());
-  if (!m_pPalette) {
-    if (IsCmykImage()) {
-      if (GetBPP() == 1) {
-        return ((uint8_t)color == 0xff) ? 0 : 1;
-      }
-      return 0xff - (uint8_t)color;
-    }
-    if (GetBPP() == 1) {
-      return ((uint8_t)color == 0xff) ? 1 : 0;
-    }
-    return (uint8_t)color;
-  }
-  int palsize = (1 << GetBPP());
-  for (int i = 0; i < palsize; i++)
-    if (m_pPalette[i] == color) {
-      return i;
-    }
-  return -1;
-}
-void CFX_DIBitmap::Clear(FX_DWORD color) {
-  if (!m_pBuffer) {
-    return;
-  }
-  switch (GetFormat()) {
-    case FXDIB_1bppMask:
-      FXSYS_memset(m_pBuffer, (color & 0xff000000) ? 0xff : 0,
-                   m_Pitch * m_Height);
-      break;
-    case FXDIB_1bppRgb: {
-      int index = FindPalette(color);
-      FXSYS_memset(m_pBuffer, index ? 0xff : 0, m_Pitch * m_Height);
-      break;
-    }
-    case FXDIB_8bppMask:
-      FXSYS_memset(m_pBuffer, color >> 24, m_Pitch * m_Height);
-      break;
-    case FXDIB_8bppRgb: {
-      int index = FindPalette(color);
-      FXSYS_memset(m_pBuffer, index, m_Pitch * m_Height);
-      break;
-    }
-    case FXDIB_Rgb:
-    case FXDIB_Rgba: {
-      int a, r, g, b;
-      ArgbDecode(color, a, r, g, b);
-      if (r == g && g == b) {
-        FXSYS_memset(m_pBuffer, r, m_Pitch * m_Height);
-      } else {
-        int byte_pos = 0;
-        for (int col = 0; col < m_Width; col++) {
-          m_pBuffer[byte_pos++] = b;
-          m_pBuffer[byte_pos++] = g;
-          m_pBuffer[byte_pos++] = r;
-        }
-        for (int row = 1; row < m_Height; row++) {
-          FXSYS_memcpy(m_pBuffer + row * m_Pitch, m_pBuffer, m_Pitch);
-        }
-      }
-      break;
-    }
-    case FXDIB_Rgb32:
-    case FXDIB_Argb: {
-      color = IsCmykImage() ? FXCMYK_TODIB(color) : FXARGB_TODIB(color);
-      for (int i = 0; i < m_Width; i++) {
-        ((FX_DWORD*)m_pBuffer)[i] = color;
-      }
-      for (int row = 1; row < m_Height; row++) {
-        FXSYS_memcpy(m_pBuffer + row * m_Pitch, m_pBuffer, m_Pitch);
-      }
-      break;
-    }
-    default:
-      break;
-  }
-}
-void CFX_DIBSource::GetOverlapRect(int& dest_left,
-                                   int& dest_top,
-                                   int& width,
-                                   int& height,
-                                   int src_width,
-                                   int src_height,
-                                   int& src_left,
-                                   int& src_top,
-                                   const CFX_ClipRgn* pClipRgn) {
-  if (width == 0 || height == 0) {
-    return;
-  }
-  ASSERT(width > 0 && height > 0);
-  if (dest_left > m_Width || dest_top > m_Height) {
-    width = 0;
-    height = 0;
-    return;
-  }
-  int x_offset = dest_left - src_left;
-  int y_offset = dest_top - src_top;
-  FX_RECT src_rect(src_left, src_top, src_left + width, src_top + height);
-  FX_RECT src_bound(0, 0, src_width, src_height);
-  src_rect.Intersect(src_bound);
-  FX_RECT dest_rect(src_rect.left + x_offset, src_rect.top + y_offset,
-                    src_rect.right + x_offset, src_rect.bottom + y_offset);
-  FX_RECT dest_bound(0, 0, m_Width, m_Height);
-  dest_rect.Intersect(dest_bound);
-  if (pClipRgn) {
-    dest_rect.Intersect(pClipRgn->GetBox());
-  }
-  dest_left = dest_rect.left;
-  dest_top = dest_rect.top;
-  src_left = dest_left - x_offset;
-  src_top = dest_top - y_offset;
-  width = dest_rect.right - dest_rect.left;
-  height = dest_rect.bottom - dest_rect.top;
-}
-FX_BOOL CFX_DIBitmap::TransferBitmap(int dest_left,
-                                     int dest_top,
-                                     int width,
-                                     int height,
-                                     const CFX_DIBSource* pSrcBitmap,
-                                     int src_left,
-                                     int src_top,
-                                     void* pIccTransform) {
-  if (!m_pBuffer) {
-    return FALSE;
-  }
-  GetOverlapRect(dest_left, dest_top, width, height, pSrcBitmap->GetWidth(),
-                 pSrcBitmap->GetHeight(), src_left, src_top, NULL);
-  if (width == 0 || height == 0) {
-    return TRUE;
-  }
-  FXDIB_Format dest_format = GetFormat();
-  FXDIB_Format src_format = pSrcBitmap->GetFormat();
-  if (dest_format == src_format && !pIccTransform) {
-    if (GetBPP() == 1) {
-      for (int row = 0; row < height; row++) {
-        uint8_t* dest_scan = m_pBuffer + (dest_top + row) * m_Pitch;
-        const uint8_t* src_scan = pSrcBitmap->GetScanline(src_top + row);
-        for (int col = 0; col < width; col++) {
-          if (src_scan[(src_left + col) / 8] &
-              (1 << (7 - (src_left + col) % 8))) {
-            dest_scan[(dest_left + col) / 8] |= 1
-                                                << (7 - (dest_left + col) % 8);
-          } else {
-            dest_scan[(dest_left + col) / 8] &=
-                ~(1 << (7 - (dest_left + col) % 8));
-          }
-        }
-      }
-    } else {
-      int Bpp = GetBPP() / 8;
-      for (int row = 0; row < height; row++) {
-        uint8_t* dest_scan =
-            m_pBuffer + (dest_top + row) * m_Pitch + dest_left * Bpp;
-        const uint8_t* src_scan =
-            pSrcBitmap->GetScanline(src_top + row) + src_left * Bpp;
-        FXSYS_memcpy(dest_scan, src_scan, width * Bpp);
-      }
-    }
-  } else {
-    if (m_pPalette) {
-      return FALSE;
-    }
-    if (m_bpp == 8) {
-      dest_format = FXDIB_8bppMask;
-    }
-    uint8_t* dest_buf =
-        m_pBuffer + dest_top * m_Pitch + dest_left * GetBPP() / 8;
-    FX_DWORD* d_plt = NULL;
-    if (!ConvertBuffer(dest_format, dest_buf, m_Pitch, width, height,
-                       pSrcBitmap, src_left, src_top, d_plt, pIccTransform)) {
-      return FALSE;
-    }
-  }
-  return TRUE;
-}
-FX_BOOL CFX_DIBitmap::TransferMask(int dest_left,
-                                   int dest_top,
-                                   int width,
-                                   int height,
-                                   const CFX_DIBSource* pMask,
-                                   FX_DWORD color,
-                                   int src_left,
-                                   int src_top,
-                                   int alpha_flag,
-                                   void* pIccTransform) {
-  if (!m_pBuffer) {
-    return FALSE;
-  }
-  ASSERT(HasAlpha() && (m_bpp >= 24));
-  ASSERT(pMask->IsAlphaMask());
-  if (!HasAlpha() || !pMask->IsAlphaMask() || m_bpp < 24) {
-    return FALSE;
-  }
-  GetOverlapRect(dest_left, dest_top, width, height, pMask->GetWidth(),
-                 pMask->GetHeight(), src_left, src_top, NULL);
-  if (width == 0 || height == 0) {
-    return TRUE;
-  }
-  int src_bpp = pMask->GetBPP();
-  int alpha;
-  FX_DWORD dst_color;
-  if (alpha_flag >> 8) {
-    alpha = alpha_flag & 0xff;
-    dst_color = FXCMYK_TODIB(color);
-  } else {
-    alpha = FXARGB_A(color);
-    dst_color = FXARGB_TODIB(color);
-  }
-  uint8_t* color_p = (uint8_t*)&dst_color;
-  if (pIccTransform && CFX_GEModule::Get()->GetCodecModule() &&
-      CFX_GEModule::Get()->GetCodecModule()->GetIccModule()) {
-    ICodec_IccModule* pIccModule =
-        CFX_GEModule::Get()->GetCodecModule()->GetIccModule();
-    pIccModule->TranslateScanline(pIccTransform, color_p, color_p, 1);
-  } else {
-    if (alpha_flag >> 8 && !IsCmykImage()) {
-      AdobeCMYK_to_sRGB1(FXSYS_GetCValue(color), FXSYS_GetMValue(color),
-                         FXSYS_GetYValue(color), FXSYS_GetKValue(color),
-                         color_p[2], color_p[1], color_p[0]);
-    } else if (!(alpha_flag >> 8) && IsCmykImage()) {
-      return FALSE;
-    }
-  }
-  if (!IsCmykImage()) {
-    color_p[3] = (uint8_t)alpha;
-  }
-  if (GetFormat() == FXDIB_Argb) {
-    for (int row = 0; row < height; row++) {
-      FX_DWORD* dest_pos =
-          (FX_DWORD*)(m_pBuffer + (dest_top + row) * m_Pitch + dest_left * 4);
-      const uint8_t* src_scan = pMask->GetScanline(src_top + row);
-      if (src_bpp == 1) {
-        for (int col = 0; col < width; col++) {
-          int src_bitpos = src_left + col;
-          if (src_scan[src_bitpos / 8] & (1 << (7 - src_bitpos % 8))) {
-            *dest_pos = dst_color;
-          } else {
-            *dest_pos = 0;
-          }
-          dest_pos++;
-        }
-      } else {
-        src_scan += src_left;
-        dst_color = FXARGB_TODIB(dst_color);
-        dst_color &= 0xffffff;
-        for (int col = 0; col < width; col++) {
-          FXARGB_SETDIB(dest_pos++,
-                        dst_color | ((alpha * (*src_scan++) / 255) << 24));
-        }
-      }
-    }
-  } else {
-    int comps = m_bpp / 8;
-    for (int row = 0; row < height; row++) {
-      uint8_t* dest_color_pos =
-          m_pBuffer + (dest_top + row) * m_Pitch + dest_left * comps;
-      uint8_t* dest_alpha_pos =
-          (uint8_t*)m_pAlphaMask->GetScanline(dest_top + row) + dest_left;
-      const uint8_t* src_scan = pMask->GetScanline(src_top + row);
-      if (src_bpp == 1) {
-        for (int col = 0; col < width; col++) {
-          int src_bitpos = src_left + col;
-          if (src_scan[src_bitpos / 8] & (1 << (7 - src_bitpos % 8))) {
-            FXSYS_memcpy(dest_color_pos, color_p, comps);
-            *dest_alpha_pos = 0xff;
-          } else {
-            FXSYS_memset(dest_color_pos, 0, comps);
-            *dest_alpha_pos = 0;
-          }
-          dest_color_pos += comps;
-          dest_alpha_pos++;
-        }
-      } else {
-        src_scan += src_left;
-        for (int col = 0; col < width; col++) {
-          FXSYS_memcpy(dest_color_pos, color_p, comps);
-          dest_color_pos += comps;
-          *dest_alpha_pos++ = (alpha * (*src_scan++) / 255);
-        }
-      }
-    }
-  }
-  return TRUE;
-}
-void CFX_DIBSource::CopyPalette(const FX_DWORD* pSrc, FX_DWORD size) {
-  if (!pSrc || GetBPP() > 8) {
-    FX_Free(m_pPalette);
-    m_pPalette = NULL;
-  } else {
-    FX_DWORD pal_size = 1 << GetBPP();
-    if (!m_pPalette) {
-      m_pPalette = FX_Alloc(FX_DWORD, pal_size);
-    }
-    if (pal_size > size) {
-      pal_size = size;
-    }
-    FXSYS_memcpy(m_pPalette, pSrc, pal_size * sizeof(FX_DWORD));
-  }
-}
-void CFX_DIBSource::GetPalette(FX_DWORD* pal, int alpha) const {
-  ASSERT(GetBPP() <= 8 && !IsCmykImage());
-  if (GetBPP() == 1) {
-    pal[0] =
-        ((m_pPalette ? m_pPalette[0] : 0xff000000) & 0xffffff) | (alpha << 24);
-    pal[1] =
-        ((m_pPalette ? m_pPalette[1] : 0xffffffff) & 0xffffff) | (alpha << 24);
-    return;
-  }
-  if (m_pPalette) {
-    for (int i = 0; i < 256; i++) {
-      pal[i] = (m_pPalette[i] & 0x00ffffff) | (alpha << 24);
-    }
-  } else {
-    for (int i = 0; i < 256; i++) {
-      pal[i] = (i * 0x10101) | (alpha << 24);
-    }
-  }
-}
-CFX_DIBitmap* CFX_DIBSource::GetAlphaMask(const FX_RECT* pClip) const {
-  ASSERT(GetFormat() == FXDIB_Argb);
-  FX_RECT rect(0, 0, m_Width, m_Height);
-  if (pClip) {
-    rect.Intersect(*pClip);
-    if (rect.IsEmpty()) {
-      return NULL;
-    }
-  }
-  CFX_DIBitmap* pMask = new CFX_DIBitmap;
-  if (!pMask->Create(rect.Width(), rect.Height(), FXDIB_8bppMask)) {
-    delete pMask;
-    return NULL;
-  }
-  for (int row = rect.top; row < rect.bottom; row++) {
-    const uint8_t* src_scan = GetScanline(row) + rect.left * 4 + 3;
-    uint8_t* dest_scan = (uint8_t*)pMask->GetScanline(row - rect.top);
-    for (int col = rect.left; col < rect.right; col++) {
-      *dest_scan++ = *src_scan;
-      src_scan += 4;
-    }
-  }
-  return pMask;
-}
-FX_BOOL CFX_DIBSource::CopyAlphaMask(const CFX_DIBSource* pAlphaMask,
-                                     const FX_RECT* pClip) {
-  if (!HasAlpha() || GetFormat() == FXDIB_Argb) {
-    return FALSE;
-  }
-  if (pAlphaMask) {
-    FX_RECT rect(0, 0, pAlphaMask->m_Width, pAlphaMask->m_Height);
-    if (pClip) {
-      rect.Intersect(*pClip);
-      if (rect.IsEmpty() || rect.Width() != m_Width ||
-          rect.Height() != m_Height) {
-        return FALSE;
-      }
-    } else {
-      if (pAlphaMask->m_Width != m_Width || pAlphaMask->m_Height != m_Height) {
-        return FALSE;
-      }
-    }
-    for (int row = 0; row < m_Height; row++)
-      FXSYS_memcpy((void*)m_pAlphaMask->GetScanline(row),
-                   pAlphaMask->GetScanline(row + rect.top) + rect.left,
-                   m_pAlphaMask->m_Pitch);
-  } else {
-    m_pAlphaMask->Clear(0xff000000);
-  }
-  return TRUE;
-}
-const int g_ChannelOffset[] = {0, 2, 1, 0, 0, 1, 2, 3, 3};
-FX_BOOL CFX_DIBitmap::LoadChannel(FXDIB_Channel destChannel,
-                                  const CFX_DIBSource* pSrcBitmap,
-                                  FXDIB_Channel srcChannel) {
-  if (!m_pBuffer) {
-    return FALSE;
-  }
-  CFX_DIBSource* pSrcClone = (CFX_DIBSource*)pSrcBitmap;
-  CFX_DIBitmap* pDst = this;
-  int destOffset, srcOffset;
-  if (srcChannel == FXDIB_Alpha) {
-    if (!pSrcBitmap->HasAlpha() && !pSrcBitmap->IsAlphaMask()) {
-      return FALSE;
-    }
-    if (pSrcBitmap->GetBPP() == 1) {
-      pSrcClone = pSrcBitmap->CloneConvert(FXDIB_8bppMask);
-      if (!pSrcClone) {
-        return FALSE;
-      }
-    }
-    if (pSrcBitmap->GetFormat() == FXDIB_Argb) {
-      srcOffset = 3;
-    } else {
-      srcOffset = 0;
-    }
-  } else {
-    if (pSrcBitmap->IsAlphaMask()) {
-      return FALSE;
-    }
-    if (pSrcBitmap->GetBPP() < 24) {
-      if (pSrcBitmap->IsCmykImage()) {
-        pSrcClone = pSrcBitmap->CloneConvert(
-            (FXDIB_Format)((pSrcBitmap->GetFormat() & 0xff00) | 0x20));
-      } else {
-        pSrcClone = pSrcBitmap->CloneConvert(
-            (FXDIB_Format)((pSrcBitmap->GetFormat() & 0xff00) | 0x18));
-      }
-      if (!pSrcClone) {
-        return FALSE;
-      }
-    }
-    srcOffset = g_ChannelOffset[srcChannel];
-  }
-  if (destChannel == FXDIB_Alpha) {
-    if (IsAlphaMask()) {
-      if (!ConvertFormat(FXDIB_8bppMask)) {
-        if (pSrcClone != pSrcBitmap) {
-          delete pSrcClone;
-        }
-        return FALSE;
-      }
-      destOffset = 0;
-    } else {
-      destOffset = 0;
-      if (!ConvertFormat(IsCmykImage() ? FXDIB_Cmyka : FXDIB_Argb)) {
-        if (pSrcClone != pSrcBitmap) {
-          delete pSrcClone;
-        }
-        return FALSE;
-      }
-      if (GetFormat() == FXDIB_Argb) {
-        destOffset = 3;
-      }
-    }
-  } else {
-    if (IsAlphaMask()) {
-      if (pSrcClone != pSrcBitmap) {
-        delete pSrcClone;
-      }
-      return FALSE;
-    }
-    if (GetBPP() < 24) {
-      if (HasAlpha()) {
-        if (!ConvertFormat(IsCmykImage() ? FXDIB_Cmyka : FXDIB_Argb)) {
-          if (pSrcClone != pSrcBitmap) {
-            delete pSrcClone;
-          }
-          return FALSE;
-        }
-#if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_
-      } else if (!ConvertFormat(IsCmykImage() ? FXDIB_Cmyk : FXDIB_Rgb32)) {
-#else
-      } else if (!ConvertFormat(IsCmykImage() ? FXDIB_Cmyk : FXDIB_Rgb)) {
-#endif
-        if (pSrcClone != pSrcBitmap) {
-          delete pSrcClone;
-        }
-        return FALSE;
-      }
-    }
-    destOffset = g_ChannelOffset[destChannel];
-  }
-  if (srcChannel == FXDIB_Alpha && pSrcClone->m_pAlphaMask) {
-    CFX_DIBitmap* pAlphaMask = pSrcClone->m_pAlphaMask;
-    if (pSrcClone->GetWidth() != m_Width ||
-        pSrcClone->GetHeight() != m_Height) {
-      if (pAlphaMask) {
-        pAlphaMask = pAlphaMask->StretchTo(m_Width, m_Height);
-        if (!pAlphaMask) {
-          if (pSrcClone != pSrcBitmap) {
-            delete pSrcClone;
-          }
-          return FALSE;
-        }
-      }
-    }
-    if (pSrcClone != pSrcBitmap) {
-      pSrcClone->m_pAlphaMask = NULL;
-      delete pSrcClone;
-    }
-    pSrcClone = pAlphaMask;
-    srcOffset = 0;
-  } else if (pSrcClone->GetWidth() != m_Width ||
-             pSrcClone->GetHeight() != m_Height) {
-    CFX_DIBitmap* pSrcMatched = pSrcClone->StretchTo(m_Width, m_Height);
-    if (pSrcClone != pSrcBitmap) {
-      delete pSrcClone;
-    }
-    if (!pSrcMatched) {
-      return FALSE;
-    }
-    pSrcClone = pSrcMatched;
-  }
-  if (destChannel == FXDIB_Alpha && m_pAlphaMask) {
-    pDst = m_pAlphaMask;
-    destOffset = 0;
-  }
-  int srcBytes = pSrcClone->GetBPP() / 8;
-  int destBytes = pDst->GetBPP() / 8;
-  for (int row = 0; row < m_Height; row++) {
-    uint8_t* dest_pos = (uint8_t*)pDst->GetScanline(row) + destOffset;
-    const uint8_t* src_pos = pSrcClone->GetScanline(row) + srcOffset;
-    for (int col = 0; col < m_Width; col++) {
-      *dest_pos = *src_pos;
-      dest_pos += destBytes;
-      src_pos += srcBytes;
-    }
-  }
-  if (pSrcClone != pSrcBitmap && pSrcClone != pSrcBitmap->m_pAlphaMask) {
-    delete pSrcClone;
-  }
-  return TRUE;
-}
-FX_BOOL CFX_DIBitmap::LoadChannel(FXDIB_Channel destChannel, int value) {
-  if (!m_pBuffer) {
-    return FALSE;
-  }
-  int destOffset;
-  if (destChannel == FXDIB_Alpha) {
-    if (IsAlphaMask()) {
-      if (!ConvertFormat(FXDIB_8bppMask)) {
-        return FALSE;
-      }
-      destOffset = 0;
-    } else {
-      destOffset = 0;
-      if (!ConvertFormat(IsCmykImage() ? FXDIB_Cmyka : FXDIB_Argb)) {
-        return FALSE;
-      }
-      if (GetFormat() == FXDIB_Argb) {
-        destOffset = 3;
-      }
-    }
-  } else {
-    if (IsAlphaMask()) {
-      return FALSE;
-    }
-    if (GetBPP() < 24) {
-      if (HasAlpha()) {
-        if (!ConvertFormat(IsCmykImage() ? FXDIB_Cmyka : FXDIB_Argb)) {
-          return FALSE;
-        }
-#if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_
-      } else if (!ConvertFormat(IsCmykImage() ? FXDIB_Cmyk : FXDIB_Rgb)) {
-#else
-      } else if (!ConvertFormat(IsCmykImage() ? FXDIB_Cmyk : FXDIB_Rgb32)) {
-#endif
-        return FALSE;
-      }
-    }
-    destOffset = g_ChannelOffset[destChannel];
-  }
-  int Bpp = GetBPP() / 8;
-  if (Bpp == 1) {
-    FXSYS_memset(m_pBuffer, value, m_Height * m_Pitch);
-    return TRUE;
-  }
-  if (destChannel == FXDIB_Alpha && m_pAlphaMask) {
-    FXSYS_memset(m_pAlphaMask->GetBuffer(), value,
-                 m_pAlphaMask->GetHeight() * m_pAlphaMask->GetPitch());
-    return TRUE;
-  }
-  for (int row = 0; row < m_Height; row++) {
-    uint8_t* scan_line = m_pBuffer + row * m_Pitch + destOffset;
-    for (int col = 0; col < m_Width; col++) {
-      *scan_line = value;
-      scan_line += Bpp;
-    }
-  }
-  return TRUE;
-}
-FX_BOOL CFX_DIBitmap::MultiplyAlpha(const CFX_DIBSource* pSrcBitmap) {
-  if (!m_pBuffer) {
-    return FALSE;
-  }
-  ASSERT(pSrcBitmap->IsAlphaMask());
-  if (!pSrcBitmap->IsAlphaMask()) {
-    return FALSE;
-  }
-  if (!IsAlphaMask() && !HasAlpha()) {
-    return LoadChannel(FXDIB_Alpha, pSrcBitmap, FXDIB_Alpha);
-  }
-  CFX_DIBitmap* pSrcClone = (CFX_DIBitmap*)pSrcBitmap;
-  if (pSrcBitmap->GetWidth() != m_Width ||
-      pSrcBitmap->GetHeight() != m_Height) {
-    pSrcClone = pSrcBitmap->StretchTo(m_Width, m_Height);
-    if (!pSrcClone) {
-      return FALSE;
-    }
-  }
-  if (IsAlphaMask()) {
-    if (!ConvertFormat(FXDIB_8bppMask)) {
-      if (pSrcClone != pSrcBitmap) {
-        delete pSrcClone;
-      }
-      return FALSE;
-    }
-    for (int row = 0; row < m_Height; row++) {
-      uint8_t* dest_scan = m_pBuffer + m_Pitch * row;
-      uint8_t* src_scan = pSrcClone->m_pBuffer + pSrcClone->m_Pitch * row;
-      if (pSrcClone->GetBPP() == 1) {
-        for (int col = 0; col < m_Width; col++) {
-          if (!((1 << (7 - col % 8)) & src_scan[col / 8])) {
-            dest_scan[col] = 0;
-          }
-        }
-      } else {
-        for (int col = 0; col < m_Width; col++) {
-          *dest_scan = (*dest_scan) * src_scan[col] / 255;
-          dest_scan++;
-        }
-      }
-    }
-  } else {
-    if (GetFormat() == FXDIB_Argb) {
-      if (pSrcClone->GetBPP() == 1) {
-        if (pSrcClone != pSrcBitmap) {
-          delete pSrcClone;
-        }
-        return FALSE;
-      }
-      for (int row = 0; row < m_Height; row++) {
-        uint8_t* dest_scan = m_pBuffer + m_Pitch * row + 3;
-        uint8_t* src_scan = pSrcClone->m_pBuffer + pSrcClone->m_Pitch * row;
-        for (int col = 0; col < m_Width; col++) {
-          *dest_scan = (*dest_scan) * src_scan[col] / 255;
-          dest_scan += 4;
-        }
-      }
-    } else {
-      m_pAlphaMask->MultiplyAlpha(pSrcClone);
-    }
-  }
-  if (pSrcClone != pSrcBitmap) {
-    delete pSrcClone;
-  }
-  return TRUE;
-}
-FX_BOOL CFX_DIBitmap::GetGrayData(void* pIccTransform) {
-  if (!m_pBuffer) {
-    return FALSE;
-  }
-  switch (GetFormat()) {
-    case FXDIB_1bppRgb: {
-      if (!m_pPalette) {
-        return FALSE;
-      }
-      uint8_t gray[2];
-      for (int i = 0; i < 2; i++) {
-        int r = (uint8_t)(m_pPalette[i] >> 16);
-        int g = (uint8_t)(m_pPalette[i] >> 8);
-        int b = (uint8_t)m_pPalette[i];
-        gray[i] = (uint8_t)FXRGB2GRAY(r, g, b);
-      }
-      CFX_DIBitmap* pMask = new CFX_DIBitmap;
-      if (!pMask->Create(m_Width, m_Height, FXDIB_8bppMask)) {
-        delete pMask;
-        return FALSE;
-      }
-      FXSYS_memset(pMask->GetBuffer(), gray[0], pMask->GetPitch() * m_Height);
-      for (int row = 0; row < m_Height; row++) {
-        uint8_t* src_pos = m_pBuffer + row * m_Pitch;
-        uint8_t* dest_pos = (uint8_t*)pMask->GetScanline(row);
-        for (int col = 0; col < m_Width; col++) {
-          if (src_pos[col / 8] & (1 << (7 - col % 8))) {
-            *dest_pos = gray[1];
-          }
-          dest_pos++;
-        }
-      }
-      TakeOver(pMask);
-      delete pMask;
-      break;
-    }
-    case FXDIB_8bppRgb: {
-      if (!m_pPalette) {
-        return FALSE;
-      }
-      uint8_t gray[256];
-      for (int i = 0; i < 256; i++) {
-        int r = (uint8_t)(m_pPalette[i] >> 16);
-        int g = (uint8_t)(m_pPalette[i] >> 8);
-        int b = (uint8_t)m_pPalette[i];
-        gray[i] = (uint8_t)FXRGB2GRAY(r, g, b);
-      }
-      CFX_DIBitmap* pMask = new CFX_DIBitmap;
-      if (!pMask->Create(m_Width, m_Height, FXDIB_8bppMask)) {
-        delete pMask;
-        return FALSE;
-      }
-      for (int row = 0; row < m_Height; row++) {
-        uint8_t* dest_pos = pMask->GetBuffer() + row * pMask->GetPitch();
-        uint8_t* src_pos = m_pBuffer + row * m_Pitch;
-        for (int col = 0; col < m_Width; col++) {
-          *dest_pos++ = gray[*src_pos++];
-        }
-      }
-      TakeOver(pMask);
-      delete pMask;
-      break;
-    }
-    case FXDIB_Rgb: {
-      CFX_DIBitmap* pMask = new CFX_DIBitmap;
-      if (!pMask->Create(m_Width, m_Height, FXDIB_8bppMask)) {
-        delete pMask;
-        return FALSE;
-      }
-      for (int row = 0; row < m_Height; row++) {
-        uint8_t* src_pos = m_pBuffer + row * m_Pitch;
-        uint8_t* dest_pos = pMask->GetBuffer() + row * pMask->GetPitch();
-        for (int col = 0; col < m_Width; col++) {
-          *dest_pos++ = FXRGB2GRAY(src_pos[2], src_pos[1], *src_pos);
-          src_pos += 3;
-        }
-      }
-      TakeOver(pMask);
-      delete pMask;
-      break;
-    }
-    case FXDIB_Rgb32: {
-      CFX_DIBitmap* pMask = new CFX_DIBitmap;
-      if (!pMask->Create(m_Width, m_Height, FXDIB_8bppMask)) {
-        delete pMask;
-        return FALSE;
-      }
-      for (int row = 0; row < m_Height; row++) {
-        uint8_t* src_pos = m_pBuffer + row * m_Pitch;
-        uint8_t* dest_pos = pMask->GetBuffer() + row * pMask->GetPitch();
-        for (int col = 0; col < m_Width; col++) {
-          *dest_pos++ = FXRGB2GRAY(src_pos[2], src_pos[1], *src_pos);
-          src_pos += 4;
-        }
-      }
-      TakeOver(pMask);
-      delete pMask;
-      break;
-    }
-    default:
-      return FALSE;
-  }
-  return TRUE;
-}
-FX_BOOL CFX_DIBitmap::MultiplyAlpha(int alpha) {
-  if (!m_pBuffer) {
-    return FALSE;
-  }
-  switch (GetFormat()) {
-    case FXDIB_1bppMask:
-      if (!ConvertFormat(FXDIB_8bppMask)) {
-        return FALSE;
-      }
-      MultiplyAlpha(alpha);
-      break;
-    case FXDIB_8bppMask: {
-      for (int row = 0; row < m_Height; row++) {
-        uint8_t* scan_line = m_pBuffer + row * m_Pitch;
-        for (int col = 0; col < m_Width; col++) {
-          scan_line[col] = scan_line[col] * alpha / 255;
-        }
-      }
-      break;
-    }
-    case FXDIB_Argb: {
-      for (int row = 0; row < m_Height; row++) {
-        uint8_t* scan_line = m_pBuffer + row * m_Pitch + 3;
-        for (int col = 0; col < m_Width; col++) {
-          *scan_line = (*scan_line) * alpha / 255;
-          scan_line += 4;
-        }
-      }
-      break;
-    }
-    default:
-      if (HasAlpha()) {
-        m_pAlphaMask->MultiplyAlpha(alpha);
-      } else if (IsCmykImage()) {
-        if (!ConvertFormat((FXDIB_Format)(GetFormat() | 0x0200))) {
-          return FALSE;
-        }
-        m_pAlphaMask->MultiplyAlpha(alpha);
-      } else {
-        if (!ConvertFormat(FXDIB_Argb)) {
-          return FALSE;
-        }
-        MultiplyAlpha(alpha);
-      }
-      break;
-  }
-  return TRUE;
-}
-FX_DWORD CFX_DIBitmap::GetPixel(int x, int y) const {
-  if (!m_pBuffer) {
-    return 0;
-  }
-  uint8_t* pos = m_pBuffer + y * m_Pitch + x * GetBPP() / 8;
-  switch (GetFormat()) {
-    case FXDIB_1bppMask: {
-      if ((*pos) & (1 << (7 - x % 8))) {
-        return 0xff000000;
-      }
-      return 0;
-    }
-    case FXDIB_1bppRgb: {
-      if ((*pos) & (1 << (7 - x % 8))) {
-        return m_pPalette ? m_pPalette[1] : 0xffffffff;
-      }
-      return m_pPalette ? m_pPalette[0] : 0xff000000;
-    }
-    case FXDIB_8bppMask:
-      return (*pos) << 24;
-    case FXDIB_8bppRgb:
-      return m_pPalette ? m_pPalette[*pos] : (0xff000000 | ((*pos) * 0x10101));
-    case FXDIB_Rgb:
-    case FXDIB_Rgba:
-    case FXDIB_Rgb32:
-      return FXARGB_GETDIB(pos) | 0xff000000;
-    case FXDIB_Argb:
-      return FXARGB_GETDIB(pos);
-    default:
-      break;
-  }
-  return 0;
-}
-void CFX_DIBitmap::SetPixel(int x, int y, FX_DWORD color) {
-  if (!m_pBuffer) {
-    return;
-  }
-  if (x < 0 || x >= m_Width || y < 0 || y >= m_Height) {
-    return;
-  }
-  uint8_t* pos = m_pBuffer + y * m_Pitch + x * GetBPP() / 8;
-  switch (GetFormat()) {
-    case FXDIB_1bppMask:
-      if (color >> 24) {
-        *pos |= 1 << (7 - x % 8);
-      } else {
-        *pos &= ~(1 << (7 - x % 8));
-      }
-      break;
-    case FXDIB_1bppRgb:
-      if (m_pPalette) {
-        if (color == m_pPalette[1]) {
-          *pos |= 1 << (7 - x % 8);
-        } else {
-          *pos &= ~(1 << (7 - x % 8));
-        }
-      } else {
-        if (color == 0xffffffff) {
-          *pos |= 1 << (7 - x % 8);
-        } else {
-          *pos &= ~(1 << (7 - x % 8));
-        }
-      }
-      break;
-    case FXDIB_8bppMask:
-      *pos = (uint8_t)(color >> 24);
-      break;
-    case FXDIB_8bppRgb: {
-      if (m_pPalette) {
-        for (int i = 0; i < 256; i++) {
-          if (m_pPalette[i] == color) {
-            *pos = (uint8_t)i;
-            return;
-          }
-        }
-        *pos = 0;
-      } else {
-        *pos = FXRGB2GRAY(FXARGB_R(color), FXARGB_G(color), FXARGB_B(color));
-      }
-      break;
-    }
-    case FXDIB_Rgb:
-    case FXDIB_Rgb32: {
-      int alpha = FXARGB_A(color);
-      pos[0] = (FXARGB_B(color) * alpha + pos[0] * (255 - alpha)) / 255;
-      pos[1] = (FXARGB_G(color) * alpha + pos[1] * (255 - alpha)) / 255;
-      pos[2] = (FXARGB_R(color) * alpha + pos[2] * (255 - alpha)) / 255;
-      break;
-    }
-    case FXDIB_Rgba: {
-      pos[0] = FXARGB_B(color);
-      pos[1] = FXARGB_G(color);
-      pos[2] = FXARGB_R(color);
-      break;
-    }
-    case FXDIB_Argb:
-      FXARGB_SETDIB(pos, color);
-      break;
-    default:
-      break;
-  }
-}
-void CFX_DIBitmap::DownSampleScanline(int line,
-                                      uint8_t* dest_scan,
-                                      int dest_bpp,
-                                      int dest_width,
-                                      FX_BOOL bFlipX,
-                                      int clip_left,
-                                      int clip_width) const {
-  if (!m_pBuffer) {
-    return;
-  }
-  int src_Bpp = m_bpp / 8;
-  uint8_t* scanline = m_pBuffer + line * m_Pitch;
-  if (src_Bpp == 0) {
-    for (int i = 0; i < clip_width; i++) {
-      FX_DWORD dest_x = clip_left + i;
-      FX_DWORD src_x = dest_x * m_Width / dest_width;
-      if (bFlipX) {
-        src_x = m_Width - src_x - 1;
-      }
-      src_x %= m_Width;
-      dest_scan[i] = (scanline[src_x / 8] & (1 << (7 - src_x % 8))) ? 255 : 0;
-    }
-  } else if (src_Bpp == 1) {
-    for (int i = 0; i < clip_width; i++) {
-      FX_DWORD dest_x = clip_left + i;
-      FX_DWORD src_x = dest_x * m_Width / dest_width;
-      if (bFlipX) {
-        src_x = m_Width - src_x - 1;
-      }
-      src_x %= m_Width;
-      int dest_pos = i;
-      if (m_pPalette) {
-        if (!IsCmykImage()) {
-          dest_pos *= 3;
-          FX_ARGB argb = m_pPalette[scanline[src_x]];
-          dest_scan[dest_pos] = FXARGB_B(argb);
-          dest_scan[dest_pos + 1] = FXARGB_G(argb);
-          dest_scan[dest_pos + 2] = FXARGB_R(argb);
-        } else {
-          dest_pos *= 4;
-          FX_CMYK cmyk = m_pPalette[scanline[src_x]];
-          dest_scan[dest_pos] = FXSYS_GetCValue(cmyk);
-          dest_scan[dest_pos + 1] = FXSYS_GetMValue(cmyk);
-          dest_scan[dest_pos + 2] = FXSYS_GetYValue(cmyk);
-          dest_scan[dest_pos + 3] = FXSYS_GetKValue(cmyk);
-        }
-      } else {
-        dest_scan[dest_pos] = scanline[src_x];
-      }
-    }
-  } else {
-    for (int i = 0; i < clip_width; i++) {
-      FX_DWORD dest_x = clip_left + i;
-      FX_DWORD src_x =
-          bFlipX ? (m_Width - dest_x * m_Width / dest_width - 1) * src_Bpp
-                 : (dest_x * m_Width / dest_width) * src_Bpp;
-      src_x %= m_Width * src_Bpp;
-      int dest_pos = i * src_Bpp;
-      for (int b = 0; b < src_Bpp; b++) {
-        dest_scan[dest_pos + b] = scanline[src_x + b];
-      }
-    }
-  }
-}
-FX_BOOL CFX_DIBitmap::ConvertColorScale(FX_DWORD forecolor,
-                                        FX_DWORD backcolor) {
-  ASSERT(!IsAlphaMask());
-  if (!m_pBuffer || IsAlphaMask()) {
-    return FALSE;
-  }
-  int fc, fm, fy, fk, bc, bm, by, bk;
-  int fr, fg, fb, br, bg, bb;
-  FX_BOOL isCmykImage = IsCmykImage();
-  if (isCmykImage) {
-    fc = FXSYS_GetCValue(forecolor);
-    fm = FXSYS_GetMValue(forecolor);
-    fy = FXSYS_GetYValue(forecolor);
-    fk = FXSYS_GetKValue(forecolor);
-    bc = FXSYS_GetCValue(backcolor);
-    bm = FXSYS_GetMValue(backcolor);
-    by = FXSYS_GetYValue(backcolor);
-    bk = FXSYS_GetKValue(backcolor);
-  } else {
-    fr = FXSYS_GetRValue(forecolor);
-    fg = FXSYS_GetGValue(forecolor);
-    fb = FXSYS_GetBValue(forecolor);
-    br = FXSYS_GetRValue(backcolor);
-    bg = FXSYS_GetGValue(backcolor);
-    bb = FXSYS_GetBValue(backcolor);
-  }
-  if (m_bpp <= 8) {
-    if (isCmykImage) {
-      if (forecolor == 0xff && backcolor == 0 && !m_pPalette) {
-        return TRUE;
-      }
-    } else if (forecolor == 0 && backcolor == 0xffffff && !m_pPalette) {
-      return TRUE;
-    }
-    if (!m_pPalette) {
-      BuildPalette();
-    }
-    int size = 1 << m_bpp;
-    if (isCmykImage) {
-      for (int i = 0; i < size; i++) {
-        uint8_t b, g, r;
-        AdobeCMYK_to_sRGB1(FXSYS_GetCValue(m_pPalette[i]),
-                           FXSYS_GetMValue(m_pPalette[i]),
-                           FXSYS_GetYValue(m_pPalette[i]),
-                           FXSYS_GetKValue(m_pPalette[i]), r, g, b);
-        int gray = 255 - FXRGB2GRAY(r, g, b);
-        m_pPalette[i] = CmykEncode(
-            bc + (fc - bc) * gray / 255, bm + (fm - bm) * gray / 255,
-            by + (fy - by) * gray / 255, bk + (fk - bk) * gray / 255);
-      }
-    } else {
-      for (int i = 0; i < size; i++) {
-        int gray = FXRGB2GRAY(FXARGB_R(m_pPalette[i]), FXARGB_G(m_pPalette[i]),
-                              FXARGB_B(m_pPalette[i]));
-        m_pPalette[i] = FXARGB_MAKE(0xff, br + (fr - br) * gray / 255,
-                                    bg + (fg - bg) * gray / 255,
-                                    bb + (fb - bb) * gray / 255);
-      }
-    }
-    return TRUE;
-  }
-  if (isCmykImage) {
-    if (forecolor == 0xff && backcolor == 0x00) {
-      for (int row = 0; row < m_Height; row++) {
-        uint8_t* scanline = m_pBuffer + row * m_Pitch;
-        for (int col = 0; col < m_Width; col++) {
-          uint8_t b, g, r;
-          AdobeCMYK_to_sRGB1(scanline[0], scanline[1], scanline[2], scanline[3],
-                             r, g, b);
-          *scanline++ = 0;
-          *scanline++ = 0;
-          *scanline++ = 0;
-          *scanline++ = 255 - FXRGB2GRAY(r, g, b);
-        }
-      }
-      return TRUE;
-    }
-  } else if (forecolor == 0 && backcolor == 0xffffff) {
-    for (int row = 0; row < m_Height; row++) {
-      uint8_t* scanline = m_pBuffer + row * m_Pitch;
-      int gap = m_bpp / 8 - 2;
-      for (int col = 0; col < m_Width; col++) {
-        int gray = FXRGB2GRAY(scanline[2], scanline[1], scanline[0]);
-        *scanline++ = gray;
-        *scanline++ = gray;
-        *scanline = gray;
-        scanline += gap;
-      }
-    }
-    return TRUE;
-  }
-  if (isCmykImage) {
-    for (int row = 0; row < m_Height; row++) {
-      uint8_t* scanline = m_pBuffer + row * m_Pitch;
-      for (int col = 0; col < m_Width; col++) {
-        uint8_t b, g, r;
-        AdobeCMYK_to_sRGB1(scanline[0], scanline[1], scanline[2], scanline[3],
-                           r, g, b);
-        int gray = 255 - FXRGB2GRAY(r, g, b);
-        *scanline++ = bc + (fc - bc) * gray / 255;
-        *scanline++ = bm + (fm - bm) * gray / 255;
-        *scanline++ = by + (fy - by) * gray / 255;
-        *scanline++ = bk + (fk - bk) * gray / 255;
-      }
-    }
-  } else {
-    for (int row = 0; row < m_Height; row++) {
-      uint8_t* scanline = m_pBuffer + row * m_Pitch;
-      int gap = m_bpp / 8 - 2;
-      for (int col = 0; col < m_Width; col++) {
-        int gray = FXRGB2GRAY(scanline[2], scanline[1], scanline[0]);
-        *scanline++ = bb + (fb - bb) * gray / 255;
-        *scanline++ = bg + (fg - bg) * gray / 255;
-        *scanline = br + (fr - br) * gray / 255;
-        scanline += gap;
-      }
-    }
-  }
-  return TRUE;
-}
-FX_BOOL CFX_DIBitmap::DitherFS(const FX_DWORD* pPalette,
-                               int pal_size,
-                               const FX_RECT* pRect) {
-  if (!m_pBuffer) {
-    return FALSE;
-  }
-  if (m_bpp != 8 && m_pPalette && m_AlphaFlag != 0) {
-    return FALSE;
-  }
-  if (m_Width < 4 && m_Height < 4) {
-    return FALSE;
-  }
-  FX_RECT rect(0, 0, m_Width, m_Height);
-  if (pRect) {
-    rect.Intersect(*pRect);
-  }
-  uint8_t translate[256];
-  for (int i = 0; i < 256; i++) {
-    int err2 = 65536;
-    for (int j = 0; j < pal_size; j++) {
-      uint8_t entry = (uint8_t)pPalette[j];
-      int err = (int)entry - i;
-      if (err * err < err2) {
-        err2 = err * err;
-        translate[i] = entry;
-      }
-    }
-  }
-  for (int row = rect.top; row < rect.bottom; row++) {
-    uint8_t* scan = m_pBuffer + row * m_Pitch;
-    uint8_t* next_scan = m_pBuffer + (row + 1) * m_Pitch;
-    for (int col = rect.left; col < rect.right; col++) {
-      int src_pixel = scan[col];
-      int dest_pixel = translate[src_pixel];
-      scan[col] = (uint8_t)dest_pixel;
-      int error = -dest_pixel + src_pixel;
-      if (col < rect.right - 1) {
-        int src = scan[col + 1];
-        src += error * 7 / 16;
-        if (src > 255) {
-          scan[col + 1] = 255;
-        } else if (src < 0) {
-          scan[col + 1] = 0;
-        } else {
-          scan[col + 1] = src;
-        }
-      }
-      if (col < rect.right - 1 && row < rect.bottom - 1) {
-        int src = next_scan[col + 1];
-        src += error * 1 / 16;
-        if (src > 255) {
-          next_scan[col + 1] = 255;
-        } else if (src < 0) {
-          next_scan[col + 1] = 0;
-        } else {
-          next_scan[col + 1] = src;
-        }
-      }
-      if (row < rect.bottom - 1) {
-        int src = next_scan[col];
-        src += error * 5 / 16;
-        if (src > 255) {
-          next_scan[col] = 255;
-        } else if (src < 0) {
-          next_scan[col] = 0;
-        } else {
-          next_scan[col] = src;
-        }
-      }
-      if (col > rect.left && row < rect.bottom - 1) {
-        int src = next_scan[col - 1];
-        src += error * 3 / 16;
-        if (src > 255) {
-          next_scan[col - 1] = 255;
-        } else if (src < 0) {
-          next_scan[col - 1] = 0;
-        } else {
-          next_scan[col - 1] = src;
-        }
-      }
-    }
-  }
-  return TRUE;
-}
-CFX_DIBitmap* CFX_DIBSource::FlipImage(FX_BOOL bXFlip, FX_BOOL bYFlip) const {
-  CFX_DIBitmap* pFlipped = new CFX_DIBitmap;
-  if (!pFlipped->Create(m_Width, m_Height, GetFormat())) {
-    delete pFlipped;
-    return NULL;
-  }
-  pFlipped->CopyPalette(m_pPalette);
-  uint8_t* pDestBuffer = pFlipped->GetBuffer();
-  int Bpp = m_bpp / 8;
-  for (int row = 0; row < m_Height; row++) {
-    const uint8_t* src_scan = GetScanline(row);
-    uint8_t* dest_scan =
-        pDestBuffer + m_Pitch * (bYFlip ? (m_Height - row - 1) : row);
-    if (!bXFlip) {
-      FXSYS_memcpy(dest_scan, src_scan, m_Pitch);
-      continue;
-    }
-    if (m_bpp == 1) {
-      FXSYS_memset(dest_scan, 0, m_Pitch);
-      for (int col = 0; col < m_Width; col++)
-        if (src_scan[col / 8] & (1 << (7 - col % 8))) {
-          int dest_col = m_Width - col - 1;
-          dest_scan[dest_col / 8] |= (1 << (7 - dest_col % 8));
-        }
-    } else {
-      dest_scan += (m_Width - 1) * Bpp;
-      if (Bpp == 1) {
-        for (int col = 0; col < m_Width; col++) {
-          *dest_scan = *src_scan;
-          dest_scan--;
-          src_scan++;
-        }
-      } else if (Bpp == 3) {
-        for (int col = 0; col < m_Width; col++) {
-          dest_scan[0] = src_scan[0];
-          dest_scan[1] = src_scan[1];
-          dest_scan[2] = src_scan[2];
-          dest_scan -= 3;
-          src_scan += 3;
-        }
-      } else {
-        ASSERT(Bpp == 4);
-        for (int col = 0; col < m_Width; col++) {
-          *(FX_DWORD*)dest_scan = *(FX_DWORD*)src_scan;
-          dest_scan -= 4;
-          src_scan += 4;
-        }
-      }
-    }
-  }
-  if (m_pAlphaMask) {
-    pDestBuffer = pFlipped->m_pAlphaMask->GetBuffer();
-    FX_DWORD dest_pitch = pFlipped->m_pAlphaMask->GetPitch();
-    for (int row = 0; row < m_Height; row++) {
-      const uint8_t* src_scan = m_pAlphaMask->GetScanline(row);
-      uint8_t* dest_scan =
-          pDestBuffer + dest_pitch * (bYFlip ? (m_Height - row - 1) : row);
-      if (!bXFlip) {
-        FXSYS_memcpy(dest_scan, src_scan, dest_pitch);
-        continue;
-      }
-      dest_scan += (m_Width - 1);
-      for (int col = 0; col < m_Width; col++) {
-        *dest_scan = *src_scan;
-        dest_scan--;
-        src_scan++;
-      }
-    }
-  }
-  return pFlipped;
-}
-CFX_DIBExtractor::CFX_DIBExtractor(const CFX_DIBSource* pSrc) {
-  m_pBitmap = NULL;
-  if (pSrc->GetBuffer()) {
-    m_pBitmap = new CFX_DIBitmap;
-    if (!m_pBitmap->Create(pSrc->GetWidth(), pSrc->GetHeight(),
-                           pSrc->GetFormat(), pSrc->GetBuffer())) {
-      delete m_pBitmap;
-      m_pBitmap = NULL;
-      return;
-    }
-    m_pBitmap->CopyPalette(pSrc->GetPalette());
-    m_pBitmap->CopyAlphaMask(pSrc->m_pAlphaMask);
-  } else {
-    m_pBitmap = pSrc->Clone();
-  }
-}
-CFX_DIBExtractor::~CFX_DIBExtractor() {
-  delete m_pBitmap;
-}
-CFX_FilteredDIB::CFX_FilteredDIB() {
-  m_pScanline = NULL;
-  m_pSrc = NULL;
-}
-CFX_FilteredDIB::~CFX_FilteredDIB() {
-  if (m_bAutoDropSrc) {
-    delete m_pSrc;
-  }
-  FX_Free(m_pScanline);
-}
-void CFX_FilteredDIB::LoadSrc(const CFX_DIBSource* pSrc, FX_BOOL bAutoDropSrc) {
-  m_pSrc = pSrc;
-  m_bAutoDropSrc = bAutoDropSrc;
-  m_Width = pSrc->GetWidth();
-  m_Height = pSrc->GetHeight();
-  FXDIB_Format format = GetDestFormat();
-  m_bpp = (uint8_t)format;
-  m_AlphaFlag = (uint8_t)(format >> 8);
-  m_Pitch = (m_Width * (format & 0xff) + 31) / 32 * 4;
-  m_pPalette = GetDestPalette();
-  m_pScanline = FX_Alloc(uint8_t, m_Pitch);
-}
-const uint8_t* CFX_FilteredDIB::GetScanline(int line) const {
-  TranslateScanline(m_pScanline, m_pSrc->GetScanline(line));
-  return m_pScanline;
-}
-void CFX_FilteredDIB::DownSampleScanline(int line,
-                                         uint8_t* dest_scan,
-                                         int dest_bpp,
-                                         int dest_width,
-                                         FX_BOOL bFlipX,
-                                         int clip_left,
-                                         int clip_width) const {
-  m_pSrc->DownSampleScanline(line, dest_scan, dest_bpp, dest_width, bFlipX,
-                             clip_left, clip_width);
-  TranslateDownSamples(dest_scan, dest_scan, clip_width, dest_bpp);
-}
-CFX_ImageRenderer::CFX_ImageRenderer() {
-  m_Status = 0;
-  m_pTransformer = NULL;
-  m_bRgbByteOrder = FALSE;
-  m_BlendType = FXDIB_BLEND_NORMAL;
-}
-CFX_ImageRenderer::~CFX_ImageRenderer() {
-  delete m_pTransformer;
-}
-FX_BOOL CFX_ImageRenderer::Start(CFX_DIBitmap* pDevice,
-                                 const CFX_ClipRgn* pClipRgn,
-                                 const CFX_DIBSource* pSource,
-                                 int bitmap_alpha,
-                                 FX_DWORD mask_color,
-                                 const CFX_Matrix* pMatrix,
-                                 FX_DWORD dib_flags,
-                                 FX_BOOL bRgbByteOrder,
-                                 int alpha_flag,
-                                 void* pIccTransform,
-                                 int blend_type) {
-  m_Matrix = *pMatrix;
-  CFX_FloatRect image_rect_f = m_Matrix.GetUnitRect();
-  FX_RECT image_rect = image_rect_f.GetOutterRect();
-  m_ClipBox = pClipRgn ? pClipRgn->GetBox() : FX_RECT(0, 0, pDevice->GetWidth(),
-                                                      pDevice->GetHeight());
-  m_ClipBox.Intersect(image_rect);
-  if (m_ClipBox.IsEmpty()) {
-    return FALSE;
-  }
-  m_pDevice = pDevice;
-  m_pClipRgn = pClipRgn;
-  m_MaskColor = mask_color;
-  m_BitmapAlpha = bitmap_alpha;
-  m_Matrix = *pMatrix;
-  m_Flags = dib_flags;
-  m_AlphaFlag = alpha_flag;
-  m_pIccTransform = pIccTransform;
-  m_bRgbByteOrder = bRgbByteOrder;
-  m_BlendType = blend_type;
-  FX_BOOL ret = TRUE;
-  if ((FXSYS_fabs(m_Matrix.b) >= 0.5f || m_Matrix.a == 0) ||
-      (FXSYS_fabs(m_Matrix.c) >= 0.5f || m_Matrix.d == 0)) {
-    if (FXSYS_fabs(m_Matrix.a) < FXSYS_fabs(m_Matrix.b) / 20 &&
-        FXSYS_fabs(m_Matrix.d) < FXSYS_fabs(m_Matrix.c) / 20 &&
-        FXSYS_fabs(m_Matrix.a) < 0.5f && FXSYS_fabs(m_Matrix.d) < 0.5f) {
-      int dest_width = image_rect.Width();
-      int dest_height = image_rect.Height();
-      FX_RECT bitmap_clip = m_ClipBox;
-      bitmap_clip.Offset(-image_rect.left, -image_rect.top);
-      bitmap_clip = FXDIB_SwapClipBox(bitmap_clip, dest_width, dest_height,
-                                      m_Matrix.c > 0, m_Matrix.b < 0);
-      m_Composer.Compose(pDevice, pClipRgn, bitmap_alpha, mask_color, m_ClipBox,
-                         TRUE, m_Matrix.c > 0, m_Matrix.b < 0, m_bRgbByteOrder,
-                         alpha_flag, pIccTransform, m_BlendType);
-      if (!m_Stretcher.Start(&m_Composer, pSource, dest_height, dest_width,
-                             bitmap_clip, dib_flags)) {
-        return FALSE;
-      }
-      m_Status = 1;
-      return TRUE;
-    }
-    m_Status = 2;
-    m_pTransformer = new CFX_ImageTransformer;
-    m_pTransformer->Start(pSource, &m_Matrix, dib_flags, &m_ClipBox);
-    return TRUE;
-  }
-  int dest_width = image_rect.Width();
-  if (m_Matrix.a < 0) {
-    dest_width = -dest_width;
-  }
-  int dest_height = image_rect.Height();
-  if (m_Matrix.d > 0) {
-    dest_height = -dest_height;
-  }
-  if (dest_width == 0 || dest_height == 0) {
-    return FALSE;
-  }
-  FX_RECT bitmap_clip = m_ClipBox;
-  bitmap_clip.Offset(-image_rect.left, -image_rect.top);
-  m_Composer.Compose(pDevice, pClipRgn, bitmap_alpha, mask_color, m_ClipBox,
-                     FALSE, FALSE, FALSE, m_bRgbByteOrder, alpha_flag,
-                     pIccTransform, m_BlendType);
-  m_Status = 1;
-  ret = m_Stretcher.Start(&m_Composer, pSource, dest_width, dest_height,
-                          bitmap_clip, dib_flags);
-  return ret;
-}
-FX_BOOL CFX_ImageRenderer::Continue(IFX_Pause* pPause) {
-  if (m_Status == 1) {
-    return m_Stretcher.Continue(pPause);
-  }
-  if (m_Status == 2) {
-    if (m_pTransformer->Continue(pPause)) {
-      return TRUE;
-    }
-    CFX_DIBitmap* pBitmap = m_pTransformer->m_Storer.Detach();
-    if (!pBitmap) {
-      return FALSE;
-    }
-    if (!pBitmap->GetBuffer()) {
-      delete pBitmap;
-      return FALSE;
-    }
-    if (pBitmap->IsAlphaMask()) {
-      if (m_BitmapAlpha != 255) {
-        if (m_AlphaFlag >> 8) {
-          m_AlphaFlag =
-              (((uint8_t)((m_AlphaFlag & 0xff) * m_BitmapAlpha / 255)) |
-               ((m_AlphaFlag >> 8) << 8));
-        } else {
-          m_MaskColor = FXARGB_MUL_ALPHA(m_MaskColor, m_BitmapAlpha);
-        }
-      }
-      m_pDevice->CompositeMask(m_pTransformer->m_ResultLeft,
-                               m_pTransformer->m_ResultTop, pBitmap->GetWidth(),
-                               pBitmap->GetHeight(), pBitmap, m_MaskColor, 0, 0,
-                               m_BlendType, m_pClipRgn, m_bRgbByteOrder,
-                               m_AlphaFlag, m_pIccTransform);
-    } else {
-      if (m_BitmapAlpha != 255) {
-        pBitmap->MultiplyAlpha(m_BitmapAlpha);
-      }
-      m_pDevice->CompositeBitmap(
-          m_pTransformer->m_ResultLeft, m_pTransformer->m_ResultTop,
-          pBitmap->GetWidth(), pBitmap->GetHeight(), pBitmap, 0, 0, m_BlendType,
-          m_pClipRgn, m_bRgbByteOrder, m_pIccTransform);
-    }
-    delete pBitmap;
-    return FALSE;
-  }
-  return FALSE;
-}
-CFX_BitmapStorer::CFX_BitmapStorer() {
-  m_pBitmap = NULL;
-}
-CFX_BitmapStorer::~CFX_BitmapStorer() {
-  delete m_pBitmap;
-}
-CFX_DIBitmap* CFX_BitmapStorer::Detach() {
-  CFX_DIBitmap* pBitmap = m_pBitmap;
-  m_pBitmap = NULL;
-  return pBitmap;
-}
-void CFX_BitmapStorer::Replace(CFX_DIBitmap* pBitmap) {
-  delete m_pBitmap;
-  m_pBitmap = pBitmap;
-}
-void CFX_BitmapStorer::ComposeScanline(int line,
-                                       const uint8_t* scanline,
-                                       const uint8_t* scan_extra_alpha) {
-  uint8_t* dest_buf = (uint8_t*)m_pBitmap->GetScanline(line);
-  uint8_t* dest_alpha_buf =
-      m_pBitmap->m_pAlphaMask
-          ? (uint8_t*)m_pBitmap->m_pAlphaMask->GetScanline(line)
-          : NULL;
-  if (dest_buf) {
-    FXSYS_memcpy(dest_buf, scanline, m_pBitmap->GetPitch());
-  }
-  if (dest_alpha_buf) {
-    FXSYS_memcpy(dest_alpha_buf, scan_extra_alpha,
-                 m_pBitmap->m_pAlphaMask->GetPitch());
-  }
-}
-FX_BOOL CFX_BitmapStorer::SetInfo(int width,
-                                  int height,
-                                  FXDIB_Format src_format,
-                                  FX_DWORD* pSrcPalette) {
-  m_pBitmap = new CFX_DIBitmap;
-  if (!m_pBitmap->Create(width, height, src_format)) {
-    delete m_pBitmap;
-    m_pBitmap = NULL;
-    return FALSE;
-  }
-  if (pSrcPalette) {
-    m_pBitmap->CopyPalette(pSrcPalette);
-  }
-  return TRUE;
-}