Continue splitting up render_int

Moved CPDF_ImageLoader, CPDF_ImageLoaderHandle, and CPDF_TransferFunc

Review-Url: https://codereview.chromium.org/2518553002

11 files changed, 260 insertions, 200 deletions

diff --git a/BUILD.gn b/BUILD.gn
index be9ced7cee..f22eeadc72 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -538,6 +538,8 @@ static_library("fpdfapi") {
     "core/fpdfapi/render/cpdf_charposlist.h",
     "core/fpdfapi/render/cpdf_docrenderdata.cpp",
     "core/fpdfapi/render/cpdf_docrenderdata.h",
+    "core/fpdfapi/render/cpdf_imageloader.cpp",
+    "core/fpdfapi/render/cpdf_imageloader.h",
     "core/fpdfapi/render/cpdf_pagerendercache.h",
     "core/fpdfapi/render/cpdf_progressiverenderer.h",
     "core/fpdfapi/render/cpdf_rendercontext.h",
@@ -545,6 +547,8 @@ static_library("fpdfapi") {
     "core/fpdfapi/render/cpdf_renderstatus.cpp",
     "core/fpdfapi/render/cpdf_renderstatus.h",
     "core/fpdfapi/render/cpdf_textrenderer.h",
+    "core/fpdfapi/render/cpdf_transferfunc.cpp",
+    "core/fpdfapi/render/cpdf_transferfunc.h",
     "core/fpdfapi/render/cpdf_type3cache.cpp",
     "core/fpdfapi/render/cpdf_type3cache.h",
     "core/fpdfapi/render/cpdf_type3glyphs.cpp",
diff --git a/core/fpdfapi/page/cpdf_generalstate.cpp b/core/fpdfapi/page/cpdf_generalstate.cpp
index 33e8e5ecb4..e06adbee79 100644
--- a/core/fpdfapi/page/cpdf_generalstate.cpp
+++ b/core/fpdfapi/page/cpdf_generalstate.cpp
@@ -8,6 +8,7 @@
 
 #include "core/fpdfapi/parser/cpdf_document.h"
 #include "core/fpdfapi/render/cpdf_docrenderdata.h"
+#include "core/fpdfapi/render/cpdf_transferfunc.h"
 #include "core/fpdfapi/render/render_int.h"
 
 namespace {
diff --git a/core/fpdfapi/render/cpdf_docrenderdata.cpp b/core/fpdfapi/render/cpdf_docrenderdata.cpp
index 9a1691711b..c17b4d594e 100644
--- a/core/fpdfapi/render/cpdf_docrenderdata.cpp
+++ b/core/fpdfapi/render/cpdf_docrenderdata.cpp
@@ -12,6 +12,7 @@
 #include "core/fpdfapi/page/pageint.h"
 #include "core/fpdfapi/parser/cpdf_array.h"
 #include "core/fpdfapi/parser/cpdf_document.h"
+#include "core/fpdfapi/render/cpdf_transferfunc.h"
 #include "core/fpdfapi/render/cpdf_type3cache.h"
 #include "core/fpdfapi/render/render_int.h"
 
diff --git a/core/fpdfapi/render/cpdf_imageloader.cpp b/core/fpdfapi/render/cpdf_imageloader.cpp
new file mode 100644
index 0000000000..e36a3f1b9c
--- /dev/null
+++ b/core/fpdfapi/render/cpdf_imageloader.cpp
@@ -0,0 +1,136 @@
+// Copyright 2016 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/fpdfapi/render/cpdf_imageloader.h"
+
+#include "core/fpdfapi/page/cpdf_image.h"
+#include "core/fpdfapi/page/cpdf_imageobject.h"
+#include "core/fpdfapi/render/cpdf_pagerendercache.h"
+#include "core/fpdfapi/render/cpdf_renderstatus.h"
+#include "core/fpdfapi/render/render_int.h"
+#include "core/fxcrt/fx_basic.h"
+
+class CPDF_ImageLoaderHandle {
+ public:
+  CPDF_ImageLoaderHandle();
+  ~CPDF_ImageLoaderHandle();
+
+  bool Start(CPDF_ImageLoader* pImageLoader,
+             const CPDF_ImageObject* pImage,
+             CPDF_PageRenderCache* pCache,
+             bool bStdCS,
+             uint32_t GroupFamily,
+             bool bLoadMask,
+             CPDF_RenderStatus* pRenderStatus,
+             int32_t nDownsampleWidth,
+             int32_t nDownsampleHeight);
+  bool Continue(IFX_Pause* pPause);
+
+ private:
+  void HandleFailure();
+
+  CPDF_ImageLoader* m_pImageLoader;
+  CPDF_PageRenderCache* m_pCache;
+  CPDF_ImageObject* m_pImage;
+  int32_t m_nDownsampleWidth;
+  int32_t m_nDownsampleHeight;
+};
+
+CPDF_ImageLoaderHandle::CPDF_ImageLoaderHandle() {
+  m_pImageLoader = nullptr;
+  m_pCache = nullptr;
+  m_pImage = nullptr;
+}
+
+CPDF_ImageLoaderHandle::~CPDF_ImageLoaderHandle() {}
+
+bool CPDF_ImageLoaderHandle::Start(CPDF_ImageLoader* pImageLoader,
+                                   const CPDF_ImageObject* pImage,
+                                   CPDF_PageRenderCache* pCache,
+                                   bool bStdCS,
+                                   uint32_t GroupFamily,
+                                   bool bLoadMask,
+                                   CPDF_RenderStatus* pRenderStatus,
+                                   int32_t nDownsampleWidth,
+                                   int32_t nDownsampleHeight) {
+  m_pImageLoader = pImageLoader;
+  m_pCache = pCache;
+  m_pImage = const_cast<CPDF_ImageObject*>(pImage);
+  m_nDownsampleWidth = nDownsampleWidth;
+  m_nDownsampleHeight = nDownsampleHeight;
+  bool ret;
+  if (pCache) {
+    ret = pCache->StartGetCachedBitmap(
+        m_pImage->GetImage()->GetStream(), bStdCS, GroupFamily, bLoadMask,
+        pRenderStatus, m_nDownsampleWidth, m_nDownsampleHeight);
+  } else {
+    ret = m_pImage->GetImage()->StartLoadDIBSource(
+        pRenderStatus->m_pFormResource, pRenderStatus->m_pPageResource, bStdCS,
+        GroupFamily, bLoadMask);
+  }
+  if (!ret)
+    HandleFailure();
+  return ret;
+}
+
+bool CPDF_ImageLoaderHandle::Continue(IFX_Pause* pPause) {
+  bool ret = m_pCache ? m_pCache->Continue(pPause)
+                      : m_pImage->GetImage()->Continue(pPause);
+  if (!ret)
+    HandleFailure();
+  return ret;
+}
+
+void CPDF_ImageLoaderHandle::HandleFailure() {
+  if (m_pCache) {
+    CPDF_ImageCacheEntry* entry = m_pCache->GetCurImageCacheEntry();
+    m_pImageLoader->m_bCached = true;
+    m_pImageLoader->m_pBitmap = entry->DetachBitmap();
+    m_pImageLoader->m_pMask = entry->DetachMask();
+    m_pImageLoader->m_MatteColor = entry->m_MatteColor;
+    return;
+  }
+  CPDF_Image* pImage = m_pImage->GetImage();
+  m_pImageLoader->m_bCached = false;
+  m_pImageLoader->m_pBitmap = pImage->DetachBitmap();
+  m_pImageLoader->m_pMask = pImage->DetachMask();
+  m_pImageLoader->m_MatteColor = pImage->m_MatteColor;
+}
+
+CPDF_ImageLoader::CPDF_ImageLoader()
+    : m_pBitmap(nullptr),
+      m_pMask(nullptr),
+      m_MatteColor(0),
+      m_bCached(false),
+      m_nDownsampleWidth(0),
+      m_nDownsampleHeight(0) {}
+
+CPDF_ImageLoader::~CPDF_ImageLoader() {
+  if (!m_bCached) {
+    delete m_pBitmap;
+    delete m_pMask;
+  }
+}
+
+bool CPDF_ImageLoader::Start(const CPDF_ImageObject* pImage,
+                             CPDF_PageRenderCache* pCache,
+                             bool bStdCS,
+                             uint32_t GroupFamily,
+                             bool bLoadMask,
+                             CPDF_RenderStatus* pRenderStatus,
+                             int32_t nDownsampleWidth,
+                             int32_t nDownsampleHeight) {
+  m_nDownsampleWidth = nDownsampleWidth;
+  m_nDownsampleHeight = nDownsampleHeight;
+  m_pLoadHandle.reset(new CPDF_ImageLoaderHandle);
+  return m_pLoadHandle->Start(this, pImage, pCache, bStdCS, GroupFamily,
+                              bLoadMask, pRenderStatus, m_nDownsampleWidth,
+                              m_nDownsampleHeight);
+}
+
+bool CPDF_ImageLoader::Continue(IFX_Pause* pPause) {
+  return m_pLoadHandle->Continue(pPause);
+}
diff --git a/core/fpdfapi/render/cpdf_imageloader.h b/core/fpdfapi/render/cpdf_imageloader.h
new file mode 100644
index 0000000000..da578a321f
--- /dev/null
+++ b/core/fpdfapi/render/cpdf_imageloader.h
@@ -0,0 +1,47 @@
+// Copyright 2016 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
+
+#ifndef CORE_FPDFAPI_RENDER_CPDF_IMAGELOADER_H_
+#define CORE_FPDFAPI_RENDER_CPDF_IMAGELOADER_H_
+
+#include <memory>
+
+#include "core/fxcrt/fx_basic.h"
+#include "core/fxge/fx_dib.h"
+
+class CPDF_ImageLoaderHandle;
+class CPDF_ImageObject;
+class CPDF_PageRenderCache;
+class CPDF_RenderStatus;
+
+class CPDF_ImageLoader {
+ public:
+  CPDF_ImageLoader();
+  ~CPDF_ImageLoader();
+
+  bool Start(const CPDF_ImageObject* pImage,
+             CPDF_PageRenderCache* pCache,
+             bool bStdCS,
+             uint32_t GroupFamily,
+             bool bLoadMask,
+             CPDF_RenderStatus* pRenderStatus,
+             int32_t nDownsampleWidth,
+             int32_t nDownsampleHeight);
+  bool Continue(IFX_Pause* pPause);
+
+  CFX_DIBSource* m_pBitmap;
+  CFX_DIBSource* m_pMask;
+  uint32_t m_MatteColor;
+  bool m_bCached;
+
+ private:
+  int32_t m_nDownsampleWidth;
+  int32_t m_nDownsampleHeight;
+
+  std::unique_ptr<CPDF_ImageLoaderHandle> m_pLoadHandle;
+};
+
+#endif  // CORE_FPDFAPI_RENDER_CPDF_IMAGELOADER_H_
diff --git a/core/fpdfapi/render/cpdf_renderstatus.cpp b/core/fpdfapi/render/cpdf_renderstatus.cpp
index d9f2a82276..7c389ef37c 100644
--- a/core/fpdfapi/render/cpdf_renderstatus.cpp
+++ b/core/fpdfapi/render/cpdf_renderstatus.cpp
@@ -38,6 +38,7 @@
 #include "core/fpdfapi/render/cpdf_rendercontext.h"
 #include "core/fpdfapi/render/cpdf_renderoptions.h"
 #include "core/fpdfapi/render/cpdf_textrenderer.h"
+#include "core/fpdfapi/render/cpdf_transferfunc.h"
 #include "core/fpdfapi/render/cpdf_type3cache.h"
 #include "core/fpdfapi/render/render_int.h"
 #include "core/fpdfdoc/cpdf_occontext.h"
@@ -895,6 +896,16 @@ std::unique_ptr<CFX_DIBitmap> DrawPatternBitmap(
   return pBitmap;
 }
 
+bool IsAvailableMatrix(const CFX_Matrix& matrix) {
+  if (matrix.a == 0 || matrix.d == 0)
+    return matrix.b != 0 && matrix.c != 0;
+
+  if (matrix.b == 0 || matrix.c == 0)
+    return matrix.a != 0 && matrix.d != 0;
+
+  return true;
+}
+
 }  // namespace
 
 // static
@@ -1219,16 +1230,6 @@ bool CPDF_RenderStatus::ProcessForm(const CPDF_FormObject* pFormObj,
   return true;
 }
 
-bool IsAvailableMatrix(const CFX_Matrix& matrix) {
-  if (matrix.a == 0 || matrix.d == 0) {
-    return matrix.b != 0 && matrix.c != 0;
-  }
-  if (matrix.b == 0 || matrix.c == 0) {
-    return matrix.a != 0 && matrix.d != 0;
-  }
-  return true;
-}
-
 bool CPDF_RenderStatus::ProcessPath(CPDF_PathObject* pPathObj,
                                     const CFX_Matrix* pObj2Device) {
   int FillType = pPathObj->m_FillType;
diff --git a/core/fpdfapi/render/cpdf_transferfunc.cpp b/core/fpdfapi/render/cpdf_transferfunc.cpp
new file mode 100644
index 0000000000..a2cee3992d
--- /dev/null
+++ b/core/fpdfapi/render/cpdf_transferfunc.cpp
@@ -0,0 +1,25 @@
+// Copyright 2016 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/fpdfapi/render/cpdf_transferfunc.h"
+
+#include "core/fpdfapi/parser/cpdf_document.h"
+#include "core/fpdfapi/render/render_int.h"
+
+CPDF_TransferFunc::CPDF_TransferFunc(CPDF_Document* pDoc) : m_pPDFDoc(pDoc) {}
+
+FX_COLORREF CPDF_TransferFunc::TranslateColor(FX_COLORREF rgb) const {
+  return FXSYS_RGB(m_Samples[FXSYS_GetRValue(rgb)],
+                   m_Samples[256 + FXSYS_GetGValue(rgb)],
+                   m_Samples[512 + FXSYS_GetBValue(rgb)]);
+}
+
+CFX_DIBSource* CPDF_TransferFunc::TranslateImage(const CFX_DIBSource* pSrc,
+                                                 bool bAutoDropSrc) {
+  CPDF_DIBTransferFunc* pDest = new CPDF_DIBTransferFunc(this);
+  pDest->LoadSrc(pSrc, bAutoDropSrc);
+  return pDest;
+}
diff --git a/core/fpdfapi/render/cpdf_transferfunc.h b/core/fpdfapi/render/cpdf_transferfunc.h
new file mode 100644
index 0000000000..829b274d9b
--- /dev/null
+++ b/core/fpdfapi/render/cpdf_transferfunc.h
@@ -0,0 +1,26 @@
+// Copyright 2016 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
+
+#ifndef CORE_FPDFAPI_RENDER_CPDF_TRANSFERFUNC_H_
+#define CORE_FPDFAPI_RENDER_CPDF_TRANSFERFUNC_H_
+
+#include "core/fxge/fx_dib.h"
+
+class CPDF_Document;
+
+class CPDF_TransferFunc {
+ public:
+  explicit CPDF_TransferFunc(CPDF_Document* pDoc);
+
+  FX_COLORREF TranslateColor(FX_COLORREF src) const;
+  CFX_DIBSource* TranslateImage(const CFX_DIBSource* pSrc, bool bAutoDropSrc);
+
+  CPDF_Document* const m_pPDFDoc;
+  bool m_bIdentity;
+  uint8_t m_Samples[256 * 3];
+};
+
+#endif  // CORE_FPDFAPI_RENDER_CPDF_TRANSFERFUNC_H_
diff --git a/core/fpdfapi/render/fpdf_render_image.cpp b/core/fpdfapi/render/fpdf_render_image.cpp
index 0c89a7521c..cf5f97bab8 100644
--- a/core/fpdfapi/render/fpdf_render_image.cpp
+++ b/core/fpdfapi/render/fpdf_render_image.cpp
@@ -25,6 +25,7 @@
 #include "core/fpdfapi/render/cpdf_rendercontext.h"
 #include "core/fpdfapi/render/cpdf_renderoptions.h"
 #include "core/fpdfapi/render/cpdf_renderstatus.h"
+#include "core/fpdfapi/render/cpdf_transferfunc.h"
 #include "core/fpdfdoc/cpdf_occontext.h"
 #include "core/fxcodec/fx_codec.h"
 #include "core/fxcrt/fx_safe_types.h"
@@ -35,21 +36,6 @@
 #include "core/fxge/skia/fx_skia_device.h"
 #endif
 
-CPDF_TransferFunc::CPDF_TransferFunc(CPDF_Document* pDoc) : m_pPDFDoc(pDoc) {}
-
-FX_COLORREF CPDF_TransferFunc::TranslateColor(FX_COLORREF rgb) const {
-  return FXSYS_RGB(m_Samples[FXSYS_GetRValue(rgb)],
-                   m_Samples[256 + FXSYS_GetGValue(rgb)],
-                   m_Samples[512 + FXSYS_GetBValue(rgb)]);
-}
-
-CFX_DIBSource* CPDF_TransferFunc::TranslateImage(const CFX_DIBSource* pSrc,
-                                                 bool bAutoDropSrc) {
-  CPDF_DIBTransferFunc* pDest = new CPDF_DIBTransferFunc(this);
-  pDest->LoadSrc(pSrc, bAutoDropSrc);
-  return pDest;
-}
-
 CPDF_DIBTransferFunc::~CPDF_DIBTransferFunc() {}
 
 FXDIB_Format CPDF_DIBTransferFunc::GetDestFormat() {
@@ -251,15 +237,12 @@ bool CPDF_ImageRenderer::StartLoadDIBSource() {
   if (m_ImageMatrix.d > 0) {
     dest_height = -dest_height;
   }
-  if (m_Loader.Start(m_pImageObject,
-                     m_pRenderStatus->m_pContext->GetPageCache(), &m_LoadHandle,
-                     m_bStdCS, m_pRenderStatus->m_GroupFamily,
-                     m_pRenderStatus->m_bLoadMask, m_pRenderStatus, dest_width,
-                     dest_height)) {
-    if (m_LoadHandle) {
-      m_Status = 4;
-      return true;
-    }
+  if (m_Loader.Start(
+          m_pImageObject, m_pRenderStatus->m_pContext->GetPageCache(), m_bStdCS,
+          m_pRenderStatus->m_GroupFamily, m_pRenderStatus->m_bLoadMask,
+          m_pRenderStatus, dest_width, dest_height)) {
+    m_Status = 4;
+    return true;
   }
   return false;
 }
@@ -810,7 +793,7 @@ bool CPDF_ImageRenderer::Continue(IFX_Pause* pPause) {
     return m_pRenderStatus->m_pDevice->ContinueDIBits(m_DeviceHandle, pPause);
 
   if (m_Status == 4) {
-    if (m_Loader.Continue(m_LoadHandle.get(), pPause))
+    if (m_Loader.Continue(pPause))
       return true;
 
     if (StartRenderDIBSource())
diff --git a/core/fpdfapi/render/fpdf_render_loadimage.cpp b/core/fpdfapi/render/fpdf_render_loadimage.cpp
index 0a1be1b976..d797b06135 100644
--- a/core/fpdfapi/render/fpdf_render_loadimage.cpp
+++ b/core/fpdfapi/render/fpdf_render_loadimage.cpp
@@ -1503,94 +1503,3 @@ bool CPDF_DIBSource::TransMask() const {
   return m_bLoadMask && m_GroupFamily == PDFCS_DEVICECMYK &&
          m_Family == PDFCS_DEVICECMYK;
 }
-
-CPDF_ImageLoaderHandle::CPDF_ImageLoaderHandle() {
-  m_pImageLoader = nullptr;
-  m_pCache = nullptr;
-  m_pImage = nullptr;
-}
-
-CPDF_ImageLoaderHandle::~CPDF_ImageLoaderHandle() {}
-
-bool CPDF_ImageLoaderHandle::Start(CPDF_ImageLoader* pImageLoader,
-                                   const CPDF_ImageObject* pImage,
-                                   CPDF_PageRenderCache* pCache,
-                                   bool bStdCS,
-                                   uint32_t GroupFamily,
-                                   bool bLoadMask,
-                                   CPDF_RenderStatus* pRenderStatus,
-                                   int32_t nDownsampleWidth,
-                                   int32_t nDownsampleHeight) {
-  m_pImageLoader = pImageLoader;
-  m_pCache = pCache;
-  m_pImage = const_cast<CPDF_ImageObject*>(pImage);
-  m_nDownsampleWidth = nDownsampleWidth;
-  m_nDownsampleHeight = nDownsampleHeight;
-  bool ret;
-  if (pCache) {
-    ret = pCache->StartGetCachedBitmap(
-        m_pImage->GetImage()->GetStream(), bStdCS, GroupFamily, bLoadMask,
-        pRenderStatus, m_nDownsampleWidth, m_nDownsampleHeight);
-  } else {
-    ret = m_pImage->GetImage()->StartLoadDIBSource(
-        pRenderStatus->m_pFormResource, pRenderStatus->m_pPageResource, bStdCS,
-        GroupFamily, bLoadMask);
-  }
-  if (!ret)
-    HandleFailure();
-  return ret;
-}
-
-bool CPDF_ImageLoaderHandle::Continue(IFX_Pause* pPause) {
-  bool ret = m_pCache ? m_pCache->Continue(pPause)
-                      : m_pImage->GetImage()->Continue(pPause);
-  if (!ret)
-    HandleFailure();
-  return ret;
-}
-
-void CPDF_ImageLoaderHandle::HandleFailure() {
-  if (m_pCache) {
-    CPDF_ImageCacheEntry* entry = m_pCache->GetCurImageCacheEntry();
-    m_pImageLoader->m_bCached = true;
-    m_pImageLoader->m_pBitmap = entry->DetachBitmap();
-    m_pImageLoader->m_pMask = entry->DetachMask();
-    m_pImageLoader->m_MatteColor = entry->m_MatteColor;
-  } else {
-    CPDF_Image* pImage = m_pImage->GetImage();
-    m_pImageLoader->m_bCached = false;
-    m_pImageLoader->m_pBitmap = pImage->DetachBitmap();
-    m_pImageLoader->m_pMask = pImage->DetachMask();
-    m_pImageLoader->m_MatteColor = pImage->m_MatteColor;
-  }
-}
-
-bool CPDF_ImageLoader::Start(
-    const CPDF_ImageObject* pImage,
-    CPDF_PageRenderCache* pCache,
-    std::unique_ptr<CPDF_ImageLoaderHandle>* pLoadHandle,
-    bool bStdCS,
-    uint32_t GroupFamily,
-    bool bLoadMask,
-    CPDF_RenderStatus* pRenderStatus,
-    int32_t nDownsampleWidth,
-    int32_t nDownsampleHeight) {
-  m_nDownsampleWidth = nDownsampleWidth;
-  m_nDownsampleHeight = nDownsampleHeight;
-  pLoadHandle->reset(new CPDF_ImageLoaderHandle);
-  return (*pLoadHandle)
-      ->Start(this, pImage, pCache, bStdCS, GroupFamily, bLoadMask,
-              pRenderStatus, m_nDownsampleWidth, m_nDownsampleHeight);
-}
-
-bool CPDF_ImageLoader::Continue(CPDF_ImageLoaderHandle* LoadHandle,
-                                IFX_Pause* pPause) {
-  return LoadHandle->Continue(pPause);
-}
-
-CPDF_ImageLoader::~CPDF_ImageLoader() {
-  if (!m_bCached) {
-    delete m_pBitmap;
-    delete m_pMask;
-  }
-}
diff --git a/core/fpdfapi/render/render_int.h b/core/fpdfapi/render/render_int.h
index 4e45597693..3e35e14520 100644
--- a/core/fpdfapi/render/render_int.h
+++ b/core/fpdfapi/render/render_int.h
@@ -15,6 +15,7 @@
 #include "core/fpdfapi/page/cpdf_countedobject.h"
 #include "core/fpdfapi/page/cpdf_graphicstates.h"
 #include "core/fpdfapi/parser/cpdf_stream_acc.h"
+#include "core/fpdfapi/render/cpdf_imageloader.h"
 #include "core/fpdfapi/render/cpdf_rendercontext.h"
 #include "core/fpdfapi/render/cpdf_renderoptions.h"
 #include "core/fxge/cfx_fxgedevice.h"
@@ -31,7 +32,6 @@ class CPDF_Document;
 class CPDF_Font;
 class CPDF_FormObject;
 class CPDF_ImageCacheEntry;
-class CPDF_ImageLoaderHandle;
 class CPDF_ImageObject;
 class CPDF_ImageRenderer;
 class CPDF_Object;
@@ -50,78 +50,6 @@ class CPDF_Type3Glyphs;
 class CPDF_Type3Char;
 class CPDF_Type3Font;
 
-bool IsAvailableMatrix(const CFX_Matrix& matrix);
-
-class CPDF_TransferFunc {
- public:
-  explicit CPDF_TransferFunc(CPDF_Document* pDoc);
-
-  FX_COLORREF TranslateColor(FX_COLORREF src) const;
-  CFX_DIBSource* TranslateImage(const CFX_DIBSource* pSrc, bool bAutoDropSrc);
-
-  CPDF_Document* const m_pPDFDoc;
-  bool m_bIdentity;
-  uint8_t m_Samples[256 * 3];
-};
-
-class CPDF_ImageLoader {
- public:
-  CPDF_ImageLoader()
-      : m_pBitmap(nullptr),
-        m_pMask(nullptr),
-        m_MatteColor(0),
-        m_bCached(false),
-        m_nDownsampleWidth(0),
-        m_nDownsampleHeight(0) {}
-  ~CPDF_ImageLoader();
-
-  bool Start(const CPDF_ImageObject* pImage,
-             CPDF_PageRenderCache* pCache,
-             std::unique_ptr<CPDF_ImageLoaderHandle>* pLoadHandle,
-             bool bStdCS = false,
-             uint32_t GroupFamily = 0,
-             bool bLoadMask = false,
-             CPDF_RenderStatus* pRenderStatus = nullptr,
-             int32_t nDownsampleWidth = 0,
-             int32_t nDownsampleHeight = 0);
-  bool Continue(CPDF_ImageLoaderHandle* LoadHandle, IFX_Pause* pPause);
-
-  CFX_DIBSource* m_pBitmap;
-  CFX_DIBSource* m_pMask;
-  uint32_t m_MatteColor;
-  bool m_bCached;
-
- protected:
-  int32_t m_nDownsampleWidth;
-  int32_t m_nDownsampleHeight;
-};
-
-class CPDF_ImageLoaderHandle {
- public:
-  CPDF_ImageLoaderHandle();
-  ~CPDF_ImageLoaderHandle();
-
-  bool Start(CPDF_ImageLoader* pImageLoader,
-             const CPDF_ImageObject* pImage,
-             CPDF_PageRenderCache* pCache,
-             bool bStdCS = false,
-             uint32_t GroupFamily = 0,
-             bool bLoadMask = false,
-             CPDF_RenderStatus* pRenderStatus = nullptr,
-             int32_t nDownsampleWidth = 0,
-             int32_t nDownsampleHeight = 0);
-  bool Continue(IFX_Pause* pPause);
-
- protected:
-  void HandleFailure();
-
-  CPDF_ImageLoader* m_pImageLoader;
-  CPDF_PageRenderCache* m_pCache;
-  CPDF_ImageObject* m_pImage;
-  int32_t m_nDownsampleWidth;
-  int32_t m_nDownsampleHeight;
-};
-
 class CPDF_ImageRenderer {
  public:
   CPDF_ImageRenderer();
@@ -168,7 +96,6 @@ class CPDF_ImageRenderer {
   uint32_t m_Flags;
   std::unique_ptr<CFX_ImageTransformer> m_pTransformer;
   void* m_DeviceHandle;
-  std::unique_ptr<CPDF_ImageLoaderHandle> m_LoadHandle;
   bool m_bStdCS;
   int m_BlendType;
 };