clang-format all pdfium code.

core/src/fpdfapi/fpdf_render/fpdf_render_image.cpp

 // 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 "../../../include/fpdfapi/fpdf_module.h"
 #include "../../../include/fpdfapi/fpdf_pageobj.h"
 #include "../../../include/fpdfapi/fpdf_render.h"
 #include "../../../include/fxcodec/fx_codec.h"
 #include "../../../include/fxcrt/fx_safe_types.h"
 #include "../../../include/fxge/fx_ge.h"
 #include "../fpdf_page/pageint.h"
 #include "render_int.h"
 
-FX_BOOL CPDF_RenderStatus::ProcessImage(CPDF_ImageObject* pImageObj, const CFX_AffineMatrix* pObj2Device)
-{
-    CPDF_ImageRenderer render;
-    if (render.Start(this, pImageObj, pObj2Device, m_bStdCS, m_curBlend)) {
-        render.Continue(NULL);
-    }
-    return render.m_Result;
-}
-void CPDF_RenderStatus::CompositeDIBitmap(CFX_DIBitmap* pDIBitmap, int left, int top, FX_ARGB mask_argb,
-        int bitmap_alpha, int blend_mode, int Transparency)
-{
-    if (pDIBitmap == NULL) {
+FX_BOOL CPDF_RenderStatus::ProcessImage(CPDF_ImageObject* pImageObj,
+                                        const CFX_AffineMatrix* pObj2Device) {
+  CPDF_ImageRenderer render;
+  if (render.Start(this, pImageObj, pObj2Device, m_bStdCS, m_curBlend)) {
+    render.Continue(NULL);
+  }
+  return render.m_Result;
+}
+void CPDF_RenderStatus::CompositeDIBitmap(CFX_DIBitmap* pDIBitmap,
+                                          int left,
+                                          int top,
+                                          FX_ARGB mask_argb,
+                                          int bitmap_alpha,
+                                          int blend_mode,
+                                          int Transparency) {
+  if (pDIBitmap == NULL) {
+    return;
+  }
+  FX_BOOL bIsolated = Transparency & PDFTRANS_ISOLATED;
+  FX_BOOL bGroup = Transparency & PDFTRANS_GROUP;
+  if (blend_mode == FXDIB_BLEND_NORMAL) {
+    if (!pDIBitmap->IsAlphaMask()) {
+      if (bitmap_alpha < 255) {
+        pDIBitmap->MultiplyAlpha(bitmap_alpha);
+      }
+      if (m_pDevice->SetDIBits(pDIBitmap, left, top)) {
         return;
-    }
-    FX_BOOL bIsolated = Transparency & PDFTRANS_ISOLATED;
-    FX_BOOL bGroup = Transparency & PDFTRANS_GROUP;
-    if (blend_mode == FXDIB_BLEND_NORMAL) {
-        if (!pDIBitmap->IsAlphaMask()) {
-            if (bitmap_alpha < 255) {
-                pDIBitmap->MultiplyAlpha(bitmap_alpha);
+      }
+    } else {
+      FX_DWORD fill_argb = m_Options.TranslateColor(mask_argb);
+      if (bitmap_alpha < 255) {
+        ((uint8_t*)&fill_argb)[3] =
+            ((uint8_t*)&fill_argb)[3] * bitmap_alpha / 255;
+      }
+      if (m_pDevice->SetBitMask(pDIBitmap, left, top, fill_argb)) {
+        return;
+      }
+    }
+  }
+  FX_BOOL bBackAlphaRequired = blend_mode && bIsolated && !m_bDropObjects;
+  FX_BOOL bGetBackGround =
+      ((m_pDevice->GetRenderCaps() & FXRC_ALPHA_OUTPUT)) ||
+      (!(m_pDevice->GetRenderCaps() & FXRC_ALPHA_OUTPUT) &&
+       (m_pDevice->GetRenderCaps() & FXRC_GET_BITS) && !bBackAlphaRequired);
+  if (bGetBackGround) {
+    if (bIsolated || !bGroup) {
+      if (pDIBitmap->IsAlphaMask()) {
+        return;
+      }
+      m_pDevice->SetDIBits(pDIBitmap, left, top, blend_mode);
+    } else {
+      FX_RECT rect(left, top, left + pDIBitmap->GetWidth(),
+                   top + pDIBitmap->GetHeight());
+      rect.Intersect(m_pDevice->GetClipBox());
+      CFX_DIBitmap* pClone = NULL;
+      FX_BOOL bClone = FALSE;
+      if (m_pDevice->GetBackDrop() && m_pDevice->GetBitmap()) {
+        bClone = TRUE;
+        pClone = m_pDevice->GetBackDrop()->Clone(&rect);
+        CFX_DIBitmap* pForeBitmap = m_pDevice->GetBitmap();
+        pClone->CompositeBitmap(0, 0, pClone->GetWidth(), pClone->GetHeight(),
+                                pForeBitmap, rect.left, rect.top);
+        left = left >= 0 ? 0 : left;
+        top = top >= 0 ? 0 : top;
+        if (!pDIBitmap->IsAlphaMask())
+          pClone->CompositeBitmap(0, 0, pClone->GetWidth(), pClone->GetHeight(),
+                                  pDIBitmap, left, top, blend_mode);
+        else
+          pClone->CompositeMask(0, 0, pClone->GetWidth(), pClone->GetHeight(),
+                                pDIBitmap, mask_argb, left, top, blend_mode);
+      } else {
+        pClone = pDIBitmap;
+      }
+      if (m_pDevice->GetBackDrop()) {
+        m_pDevice->SetDIBits(pClone, rect.left, rect.top);
+      } else {
+        if (pDIBitmap->IsAlphaMask()) {
+          return;
+        }
+        m_pDevice->SetDIBits(pDIBitmap, rect.left, rect.top, blend_mode);
+      }
+      if (bClone) {
+        delete pClone;
+      }
+    }
+    return;
+  }
+  int back_left, back_top;
+  FX_RECT rect(left, top, left + pDIBitmap->GetWidth(),
+               top + pDIBitmap->GetHeight());
+  CFX_DIBitmap* pBackdrop =
+      GetBackdrop(m_pCurObj, rect, back_left, back_top,
+                  blend_mode > FXDIB_BLEND_NORMAL && bIsolated);
+  if (!pBackdrop) {
+    return;
+  }
+  if (!pDIBitmap->IsAlphaMask())
+    pBackdrop->CompositeBitmap(left - back_left, top - back_top,
+                               pDIBitmap->GetWidth(), pDIBitmap->GetHeight(),
+                               pDIBitmap, 0, 0, blend_mode);
+  else
+    pBackdrop->CompositeMask(left - back_left, top - back_top,
+                             pDIBitmap->GetWidth(), pDIBitmap->GetHeight(),
+                             pDIBitmap, mask_argb, 0, 0, blend_mode);
+  CFX_DIBitmap* pBackdrop1 = new CFX_DIBitmap;
+  pBackdrop1->Create(pBackdrop->GetWidth(), pBackdrop->GetHeight(),
+                     FXDIB_Rgb32);
+  pBackdrop1->Clear((FX_DWORD)-1);
+  pBackdrop1->CompositeBitmap(0, 0, pBackdrop->GetWidth(),
+                              pBackdrop->GetHeight(), pBackdrop, 0, 0);
+  delete pBackdrop;
+  pBackdrop = pBackdrop1;
+  m_pDevice->SetDIBits(pBackdrop, back_left, back_top);
+  delete pBackdrop;
+}
+FX_COLORREF CPDF_TransferFunc::TranslateColor(FX_COLORREF rgb) {
+  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,
+                                                 FX_BOOL bAutoDropSrc) {
+  CPDF_DIBTransferFunc* pDest = new CPDF_DIBTransferFunc(this);
+  pDest->LoadSrc(pSrc, bAutoDropSrc);
+  return pDest;
+}
+FXDIB_Format CPDF_DIBTransferFunc::GetDestFormat() {
+  if (m_pSrc->IsAlphaMask()) {
+    return FXDIB_8bppMask;
+  }
+#if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_
+  return (m_pSrc->HasAlpha()) ? FXDIB_Argb : FXDIB_Rgb32;
+#else
+  return (m_pSrc->HasAlpha()) ? FXDIB_Argb : FXDIB_Rgb;
+#endif
+}
+CPDF_DIBTransferFunc::CPDF_DIBTransferFunc(
+    const CPDF_TransferFunc* pTransferFunc) {
+  m_RampR = pTransferFunc->m_Samples;
+  m_RampG = &pTransferFunc->m_Samples[256];
+  m_RampB = &pTransferFunc->m_Samples[512];
+}
+void CPDF_DIBTransferFunc::TranslateScanline(uint8_t* dest_buf,
+                                             const uint8_t* src_buf) const {
+  int i;
+  FX_BOOL bSkip = FALSE;
+  switch (m_pSrc->GetFormat()) {
+    case FXDIB_1bppRgb: {
+      int r0 = m_RampR[0], g0 = m_RampG[0], b0 = m_RampB[0];
+      int r1 = m_RampR[255], g1 = m_RampG[255], b1 = m_RampB[255];
+      for (i = 0; i < m_Width; i++) {
+        if (src_buf[i / 8] & (1 << (7 - i % 8))) {
+          *dest_buf++ = b1;
+          *dest_buf++ = g1;
+          *dest_buf++ = r1;
+        } else {
+          *dest_buf++ = b0;
+          *dest_buf++ = g0;
+          *dest_buf++ = r0;
+        }
+#if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_
+        dest_buf++;
+#endif
+      }
+      break;
+    }
+    case FXDIB_1bppMask: {
+      int m0 = m_RampR[0], m1 = m_RampR[255];
+      for (i = 0; i < m_Width; i++) {
+        if (src_buf[i / 8] & (1 << (7 - i % 8))) {
+          *dest_buf++ = m1;
+        } else {
+          *dest_buf++ = m0;
+        }
+      }
+      break;
+    }
+    case FXDIB_8bppRgb: {
+      FX_ARGB* pPal = m_pSrc->GetPalette();
+      for (i = 0; i < m_Width; i++) {
+        if (pPal) {
+          FX_ARGB src_argb = pPal[*src_buf];
+          *dest_buf++ = m_RampB[FXARGB_R(src_argb)];
+          *dest_buf++ = m_RampG[FXARGB_G(src_argb)];
+          *dest_buf++ = m_RampR[FXARGB_B(src_argb)];
+        } else {
+          FX_DWORD src_byte = *src_buf;
+          *dest_buf++ = m_RampB[src_byte];
+          *dest_buf++ = m_RampG[src_byte];
+          *dest_buf++ = m_RampR[src_byte];
+        }
+        src_buf++;
+#if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_
+        dest_buf++;
+#endif
+      }
+      break;
+    }
+    case FXDIB_8bppMask:
+      for (i = 0; i < m_Width; i++) {
+        *dest_buf++ = m_RampR[*(src_buf++)];
+      }
+      break;
+    case FXDIB_Rgb:
+      for (i = 0; i < m_Width; i++) {
+        *dest_buf++ = m_RampB[*(src_buf++)];
+        *dest_buf++ = m_RampG[*(src_buf++)];
+        *dest_buf++ = m_RampR[*(src_buf++)];
+#if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_
+        dest_buf++;
+#endif
+      }
+      break;
+    case FXDIB_Rgb32:
+      bSkip = TRUE;
+    case FXDIB_Argb:
+      for (i = 0; i < m_Width; i++) {
+        *dest_buf++ = m_RampB[*(src_buf++)];
+        *dest_buf++ = m_RampG[*(src_buf++)];
+        *dest_buf++ = m_RampR[*(src_buf++)];
+        if (!bSkip) {
+          *dest_buf++ = *src_buf;
+        }
+#if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_
+        else {
+          dest_buf++;
+        }
+#endif
+        src_buf++;
+      }
+      break;
+    default:
+      break;
+  }
+}
+void CPDF_DIBTransferFunc::TranslateDownSamples(uint8_t* dest_buf,
+                                                const uint8_t* src_buf,
+                                                int pixels,
+                                                int Bpp) const {
+  if (Bpp == 8) {
+    for (int i = 0; i < pixels; i++) {
+      *dest_buf++ = m_RampR[*(src_buf++)];
+    }
+  } else if (Bpp == 24) {
+    for (int i = 0; i < pixels; i++) {
+      *dest_buf++ = m_RampB[*(src_buf++)];
+      *dest_buf++ = m_RampG[*(src_buf++)];
+      *dest_buf++ = m_RampR[*(src_buf++)];
+    }
+  } else {
+#if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_
+    if (!m_pSrc->HasAlpha()) {
+      for (int i = 0; i < pixels; i++) {
+        *dest_buf++ = m_RampB[*(src_buf++)];
+        *dest_buf++ = m_RampG[*(src_buf++)];
+        *dest_buf++ = m_RampR[*(src_buf++)];
+        dest_buf++;
+        src_buf++;
+      }
+    } else
+#endif
+      for (int i = 0; i < pixels; i++) {
+        *dest_buf++ = m_RampB[*(src_buf++)];
+        *dest_buf++ = m_RampG[*(src_buf++)];
+        *dest_buf++ = m_RampR[*(src_buf++)];
+        *dest_buf++ = *(src_buf++);
+      }
+  }
+}
+static FX_BOOL _IsSupported(CPDF_ColorSpace* pCS) {
+  if (pCS->GetFamily() == PDFCS_DEVICERGB ||
+      pCS->GetFamily() == PDFCS_DEVICEGRAY ||
+      pCS->GetFamily() == PDFCS_DEVICECMYK ||
+      pCS->GetFamily() == PDFCS_CALGRAY || pCS->GetFamily() == PDFCS_CALRGB) {
+    return TRUE;
+  }
+  if (pCS->GetFamily() == PDFCS_INDEXED && _IsSupported(pCS->GetBaseCS())) {
+    return TRUE;
+  }
+  return FALSE;
+}
+CPDF_ImageRenderer::CPDF_ImageRenderer() {
+  m_pRenderStatus = NULL;
+  m_pImageObject = NULL;
+  m_Result = TRUE;
+  m_Status = 0;
+  m_pQuickStretcher = NULL;
+  m_pTransformer = NULL;
+  m_DeviceHandle = NULL;
+  m_LoadHandle = NULL;
+  m_pClone = NULL;
+  m_bStdCS = FALSE;
+  m_bPatternColor = FALSE;
+  m_BlendType = FXDIB_BLEND_NORMAL;
+  m_pPattern = NULL;
+  m_pObj2Device = NULL;
+}
+CPDF_ImageRenderer::~CPDF_ImageRenderer() {
+  delete m_pQuickStretcher;
+  delete m_pTransformer;
+  if (m_DeviceHandle) {
+    m_pRenderStatus->m_pDevice->CancelDIBits(m_DeviceHandle);
+  }
+  delete (CPDF_ProgressiveImageLoaderHandle*)m_LoadHandle;
+  delete m_pClone;
+}
+FX_BOOL CPDF_ImageRenderer::StartLoadDIBSource() {
+  CFX_FloatRect image_rect_f = m_ImageMatrix.GetUnitRect();
+  FX_RECT image_rect = image_rect_f.GetOutterRect();
+  int dest_width = image_rect.Width();
+  int dest_height = image_rect.Height();
+  if (m_ImageMatrix.a < 0) {
+    dest_width = -dest_width;
+  }
+  if (m_ImageMatrix.d > 0) {
+    dest_height = -dest_height;
+  }
+  if (m_Loader.StartLoadImage(
+          m_pImageObject, m_pRenderStatus->m_pContext->m_pPageCache,
+          m_LoadHandle, m_bStdCS, m_pRenderStatus->m_GroupFamily,
+          m_pRenderStatus->m_bLoadMask, m_pRenderStatus, dest_width,
+          dest_height)) {
+    if (m_LoadHandle != NULL) {
+      m_Status = 4;
+      return TRUE;
+    }
+    return FALSE;
+  }
+  return FALSE;
+}
+FX_BOOL CPDF_ImageRenderer::StartRenderDIBSource() {
+  if (m_Loader.m_pBitmap == NULL) {
+    return FALSE;
+  }
+  m_BitmapAlpha = 255;
+  const CPDF_GeneralStateData* pGeneralState = m_pImageObject->m_GeneralState;
+  if (pGeneralState) {
+    m_BitmapAlpha = FXSYS_round(pGeneralState->m_FillAlpha * 255);
+  }
+  m_pDIBSource = m_Loader.m_pBitmap;
+  if (m_pRenderStatus->m_Options.m_ColorMode == RENDER_COLOR_ALPHA &&
+      m_Loader.m_pMask == NULL) {
+    return StartBitmapAlpha();
+  }
+  if (pGeneralState && pGeneralState->m_pTR) {
+    if (!pGeneralState->m_pTransferFunc) {
+      ((CPDF_GeneralStateData*)pGeneralState)->m_pTransferFunc =
+          m_pRenderStatus->GetTransferFunc(pGeneralState->m_pTR);
+    }
+    if (pGeneralState->m_pTransferFunc &&
+        !pGeneralState->m_pTransferFunc->m_bIdentity) {
+      m_pDIBSource = m_Loader.m_pBitmap =
+          pGeneralState->m_pTransferFunc->TranslateImage(m_Loader.m_pBitmap,
+                                                         !m_Loader.m_bCached);
+      if (m_Loader.m_bCached && m_Loader.m_pMask) {
+        m_Loader.m_pMask = m_Loader.m_pMask->Clone();
+      }
+      m_Loader.m_bCached = FALSE;
+    }
+  }
+  m_FillArgb = 0;
+  m_bPatternColor = FALSE;
+  m_pPattern = NULL;
+  if (m_pDIBSource->IsAlphaMask()) {
+    CPDF_Color* pColor = m_pImageObject->m_ColorState.GetFillColor();
+    if (pColor && pColor->IsPattern()) {
+      m_pPattern = pColor->GetPattern();
+      if (m_pPattern != NULL) {
+        m_bPatternColor = TRUE;
+      }
+    }
+    m_FillArgb = m_pRenderStatus->GetFillArgb(m_pImageObject);
+  } else if (m_pRenderStatus->m_Options.m_ColorMode == RENDER_COLOR_GRAY) {
+    m_pClone = m_pDIBSource->Clone();
+    m_pClone->ConvertColorScale(m_pRenderStatus->m_Options.m_BackColor,
+                                m_pRenderStatus->m_Options.m_ForeColor);
+    m_pDIBSource = m_pClone;
+  }
+  m_Flags = 0;
+  if (m_pRenderStatus->m_Options.m_Flags & RENDER_FORCE_DOWNSAMPLE) {
+    m_Flags |= RENDER_FORCE_DOWNSAMPLE;
+  } else if (m_pRenderStatus->m_Options.m_Flags & RENDER_FORCE_HALFTONE) {
+    m_Flags |= RENDER_FORCE_HALFTONE;
+  }
+  if (m_pRenderStatus->m_pDevice->GetDeviceClass() != FXDC_DISPLAY) {
+    CPDF_Object* pFilters =
+        m_pImageObject->m_pImage->GetStream()->GetDict()->GetElementValue(
+            FX_BSTRC("Filter"));
+    if (pFilters) {
+      if (pFilters->GetType() == PDFOBJ_NAME) {
+        CFX_ByteStringC bsDecodeType = pFilters->GetConstString();
+        if (bsDecodeType == FX_BSTRC("DCTDecode") ||
+            bsDecodeType == FX_BSTRC("JPXDecode")) {
+          m_Flags |= FXRENDER_IMAGE_LOSSY;
+        }
+      } else if (pFilters->GetType() == PDFOBJ_ARRAY) {
+        CPDF_Array* pArray = (CPDF_Array*)pFilters;
+        for (FX_DWORD i = 0; i < pArray->GetCount(); i++) {
+          CFX_ByteStringC bsDecodeType = pArray->GetConstString(i);
+          if (bsDecodeType == FX_BSTRC("DCTDecode") ||
+              bsDecodeType == FX_BSTRC("JPXDecode")) {
+            m_Flags |= FXRENDER_IMAGE_LOSSY;
+            break;
+          }
+        }
+      }
+    }
+  }
+  if (m_pRenderStatus->m_Options.m_Flags & RENDER_NOIMAGESMOOTH) {
+    m_Flags |= FXDIB_NOSMOOTH;
+  } else if (m_pImageObject->m_pImage->IsInterpol()) {
+    m_Flags |= FXDIB_INTERPOL;
+  }
+  if (m_Loader.m_pMask) {
+    return DrawMaskedImage();
+  }
+  if (m_bPatternColor) {
+    return DrawPatternImage(m_pObj2Device);
+  }
+  if (m_BitmapAlpha == 255 && pGeneralState && pGeneralState->m_FillOP &&
+      pGeneralState->m_OPMode == 0 &&
+      pGeneralState->m_BlendType == FXDIB_BLEND_NORMAL &&
+      pGeneralState->m_StrokeAlpha == 1 && pGeneralState->m_FillAlpha == 1) {
+    CPDF_Document* pDocument = NULL;
+    CPDF_Page* pPage = NULL;
+    if (m_pRenderStatus->m_pContext->m_pPageCache) {
+      pPage = m_pRenderStatus->m_pContext->m_pPageCache->GetPage();
+      pDocument = pPage->m_pDocument;
+    } else {
+      pDocument = m_pImageObject->m_pImage->GetDocument();
+    }
+    CPDF_Dictionary* pPageResources = pPage ? pPage->m_pPageResources : NULL;
+    CPDF_Object* pCSObj =
+        m_pImageObject->m_pImage->GetStream()->GetDict()->GetElementValue(
+            FX_BSTRC("ColorSpace"));
+    CPDF_ColorSpace* pColorSpace =
+        pDocument->LoadColorSpace(pCSObj, pPageResources);
+    if (pColorSpace) {
+      int format = pColorSpace->GetFamily();
+      if (format == PDFCS_DEVICECMYK || format == PDFCS_SEPARATION ||
+          format == PDFCS_DEVICEN) {
+        m_BlendType = FXDIB_BLEND_DARKEN;
+      }
+      pDocument->GetPageData()->ReleaseColorSpace(pCSObj);
+    }
+  }
+  return StartDIBSource();
+}
+FX_BOOL CPDF_ImageRenderer::Start(CPDF_RenderStatus* pStatus,
+                                  const CPDF_PageObject* pObj,
+                                  const CFX_AffineMatrix* pObj2Device,
+                                  FX_BOOL bStdCS,
+                                  int blendType) {
+  m_pRenderStatus = pStatus;
+  m_bStdCS = bStdCS;
+  m_pImageObject = (CPDF_ImageObject*)pObj;
+  m_BlendType = blendType;
+  m_pObj2Device = pObj2Device;
+  CPDF_Dictionary* pOC = m_pImageObject->m_pImage->GetOC();
+  if (pOC && m_pRenderStatus->m_Options.m_pOCContext &&
+      !m_pRenderStatus->m_Options.m_pOCContext->CheckOCGVisible(pOC)) {
+    return FALSE;
+  }
+  m_ImageMatrix = m_pImageObject->m_Matrix;
+  m_ImageMatrix.Concat(*pObj2Device);
+  if (StartLoadDIBSource()) {
+    return TRUE;
+  }
+  return StartRenderDIBSource();
+}
+FX_BOOL CPDF_ImageRenderer::Start(CPDF_RenderStatus* pStatus,
+                                  const CFX_DIBSource* pDIBSource,
+                                  FX_ARGB bitmap_argb,
+                                  int bitmap_alpha,
+                                  const CFX_AffineMatrix* pImage2Device,
+                                  FX_DWORD flags,
+                                  FX_BOOL bStdCS,
+                                  int blendType) {
+  m_pRenderStatus = pStatus;
+  m_pDIBSource = pDIBSource;
+  m_FillArgb = bitmap_argb;
+  m_BitmapAlpha = bitmap_alpha;
+  m_ImageMatrix = *pImage2Device;
+  m_Flags = flags;
+  m_bStdCS = bStdCS;
+  m_BlendType = blendType;
+  return StartDIBSource();
+}
+FX_BOOL CPDF_ImageRenderer::DrawPatternImage(const CFX_Matrix* pObj2Device) {
+  if (m_pRenderStatus->m_bPrint &&
+      !(m_pRenderStatus->m_pDevice->GetRenderCaps() & FXRC_BLEND_MODE)) {
+    m_Result = FALSE;
+    return FALSE;
+  }
+  FX_RECT rect = m_ImageMatrix.GetUnitRect().GetOutterRect();
+  rect.Intersect(m_pRenderStatus->m_pDevice->GetClipBox());
+  if (rect.IsEmpty()) {
+    return FALSE;
+  }
+  CFX_AffineMatrix new_matrix = m_ImageMatrix;
+  new_matrix.TranslateI(-rect.left, -rect.top);
+  int width = rect.Width();
+  int height = rect.Height();
+  CFX_FxgeDevice bitmap_device1;
+  if (!bitmap_device1.Create(rect.Width(), rect.Height(), FXDIB_Rgb32)) {
+    return TRUE;
+  }
+  bitmap_device1.GetBitmap()->Clear(0xffffff);
+  {
+    CPDF_RenderStatus bitmap_render;
+    bitmap_render.Initialize(m_pRenderStatus->m_pContext, &bitmap_device1, NULL,
+                             NULL, NULL, NULL, &m_pRenderStatus->m_Options, 0,
+                             m_pRenderStatus->m_bDropObjects, NULL, TRUE);
+    CFX_Matrix patternDevice = *pObj2Device;
+    patternDevice.Translate((FX_FLOAT)-rect.left, (FX_FLOAT)-rect.top);
+    if (m_pPattern->m_PatternType == PATTERN_TILING) {
+      bitmap_render.DrawTilingPattern((CPDF_TilingPattern*)m_pPattern,
+                                      m_pImageObject, &patternDevice, FALSE);
+    } else {
+      bitmap_render.DrawShadingPattern((CPDF_ShadingPattern*)m_pPattern,
+                                       m_pImageObject, &patternDevice, FALSE);
+    }
+  }
+  {
+    CFX_FxgeDevice bitmap_device2;
+    if (!bitmap_device2.Create(rect.Width(), rect.Height(), FXDIB_8bppRgb)) {
+      return TRUE;
+    }
+    bitmap_device2.GetBitmap()->Clear(0);
+    CPDF_RenderStatus bitmap_render;
+    bitmap_render.Initialize(m_pRenderStatus->m_pContext, &bitmap_device2, NULL,
+                             NULL, NULL, NULL, NULL, 0,
+                             m_pRenderStatus->m_bDropObjects, NULL, TRUE);
+    CPDF_ImageRenderer image_render;
+    if (image_render.Start(&bitmap_render, m_pDIBSource, 0xffffffff, 255,
+                           &new_matrix, m_Flags, TRUE)) {
+      image_render.Continue(NULL);
+    }
+    if (m_Loader.m_MatteColor != 0xffffffff) {
+      int matte_r = FXARGB_R(m_Loader.m_MatteColor);
+      int matte_g = FXARGB_G(m_Loader.m_MatteColor);
+      int matte_b = FXARGB_B(m_Loader.m_MatteColor);
+      for (int row = 0; row < height; row++) {
+        uint8_t* dest_scan =
+            (uint8_t*)bitmap_device1.GetBitmap()->GetScanline(row);
+        const uint8_t* mask_scan = bitmap_device2.GetBitmap()->GetScanline(row);
+        for (int col = 0; col < width; col++) {
+          int alpha = *mask_scan++;
+          if (alpha) {
+            int orig = (*dest_scan - matte_b) * 255 / alpha + matte_b;
+            if (orig < 0) {
+              orig = 0;
+            } else if (orig > 255) {
+              orig = 255;
             }
-            if (m_pDevice->SetDIBits(pDIBitmap, left, top)) {
-                return;
+            *dest_scan++ = orig;
+            orig = (*dest_scan - matte_g) * 255 / alpha + matte_g;
+            if (orig < 0) {
+              orig = 0;
+            } else if (orig > 255) {
+              orig = 255;
             }
-        } else {
-            FX_DWORD fill_argb = m_Options.TranslateColor(mask_argb);
-            if (bitmap_alpha < 255) {
-                ((uint8_t*)&fill_argb)[3] = ((uint8_t*)&fill_argb)[3] * bitmap_alpha / 255;
+            *dest_scan++ = orig;
+            orig = (*dest_scan - matte_r) * 255 / alpha + matte_r;
+            if (orig < 0) {
+              orig = 0;
+            } else if (orig > 255) {
+              orig = 255;
             }
-            if (m_pDevice->SetBitMask(pDIBitmap, left, top, fill_argb)) {
-                return;
+            *dest_scan++ = orig;
+            dest_scan++;
+          } else {
+            dest_scan += 4;
+          }
+        }
+      }
+    }
+    bitmap_device2.GetBitmap()->ConvertFormat(FXDIB_8bppMask);
+    bitmap_device1.GetBitmap()->MultiplyAlpha(bitmap_device2.GetBitmap());
+    bitmap_device1.GetBitmap()->MultiplyAlpha(255);
+  }
+  m_pRenderStatus->m_pDevice->SetDIBits(bitmap_device1.GetBitmap(), rect.left,
+                                        rect.top, m_BlendType);
+  return FALSE;
+}
+FX_BOOL CPDF_ImageRenderer::DrawMaskedImage() {
+  if (m_pRenderStatus->m_bPrint &&
+      !(m_pRenderStatus->m_pDevice->GetRenderCaps() & FXRC_BLEND_MODE)) {
+    m_Result = FALSE;
+    return FALSE;
+  }
+  FX_RECT rect = m_ImageMatrix.GetUnitRect().GetOutterRect();
+  rect.Intersect(m_pRenderStatus->m_pDevice->GetClipBox());
+  if (rect.IsEmpty()) {
+    return FALSE;
+  }
+  CFX_AffineMatrix new_matrix = m_ImageMatrix;
+  new_matrix.TranslateI(-rect.left, -rect.top);
+  int width = rect.Width();
+  int height = rect.Height();
+  CFX_FxgeDevice bitmap_device1;
+  if (!bitmap_device1.Create(width, height, FXDIB_Rgb32)) {
+    return TRUE;
+  }
+  bitmap_device1.GetBitmap()->Clear(0xffffff);
+  {
+    CPDF_RenderStatus bitmap_render;
+    bitmap_render.Initialize(m_pRenderStatus->m_pContext, &bitmap_device1, NULL,
+                             NULL, NULL, NULL, NULL, 0,
+                             m_pRenderStatus->m_bDropObjects, NULL, TRUE);
+    CPDF_ImageRenderer image_render;
+    if (image_render.Start(&bitmap_render, m_pDIBSource, 0, 255, &new_matrix,
+                           m_Flags, TRUE)) {
+      image_render.Continue(NULL);
+    }
+  }
+  {
+    CFX_FxgeDevice bitmap_device2;
+    if (!bitmap_device2.Create(width, height, FXDIB_8bppRgb)) {
+      return TRUE;
+    }
+    bitmap_device2.GetBitmap()->Clear(0);
+    CPDF_RenderStatus bitmap_render;
+    bitmap_render.Initialize(m_pRenderStatus->m_pContext, &bitmap_device2, NULL,
+                             NULL, NULL, NULL, NULL, 0,
+                             m_pRenderStatus->m_bDropObjects, NULL, TRUE);
+    CPDF_ImageRenderer image_render;
+    if (image_render.Start(&bitmap_render, m_Loader.m_pMask, 0xffffffff, 255,
+                           &new_matrix, m_Flags, TRUE)) {
+      image_render.Continue(NULL);
+    }
+    if (m_Loader.m_MatteColor != 0xffffffff) {
+      int matte_r = FXARGB_R(m_Loader.m_MatteColor);
+      int matte_g = FXARGB_G(m_Loader.m_MatteColor);
+      int matte_b = FXARGB_B(m_Loader.m_MatteColor);
+      for (int row = 0; row < height; row++) {
+        uint8_t* dest_scan =
+            (uint8_t*)bitmap_device1.GetBitmap()->GetScanline(row);
+        const uint8_t* mask_scan = bitmap_device2.GetBitmap()->GetScanline(row);
+        for (int col = 0; col < width; col++) {
+          int alpha = *mask_scan++;
+          if (alpha) {
+            int orig = (*dest_scan - matte_b) * 255 / alpha + matte_b;
+            if (orig < 0) {
+              orig = 0;
+            } else if (orig > 255) {
+              orig = 255;
             }
-        }
-    }
-    FX_BOOL bBackAlphaRequired = blend_mode && bIsolated && !m_bDropObjects;
-    FX_BOOL bGetBackGround = ((m_pDevice->GetRenderCaps() & FXRC_ALPHA_OUTPUT)) ||
-                             (!(m_pDevice->GetRenderCaps() & FXRC_ALPHA_OUTPUT) && (m_pDevice->GetRenderCaps()
-                                     & FXRC_GET_BITS) && !bBackAlphaRequired);
-    if (bGetBackGround) {
-        if (bIsolated || !bGroup) {
-            if (pDIBitmap->IsAlphaMask()) {
-                return;
+            *dest_scan++ = orig;
+            orig = (*dest_scan - matte_g) * 255 / alpha + matte_g;
+            if (orig < 0) {
+              orig = 0;
+            } else if (orig > 255) {
+              orig = 255;
             }
-            m_pDevice->SetDIBits(pDIBitmap, left, top, blend_mode);
-        } else {
-            FX_RECT rect(left, top, left + pDIBitmap->GetWidth(), top + pDIBitmap->GetHeight());
-            rect.Intersect(m_pDevice->GetClipBox());
-            CFX_DIBitmap* pClone = NULL;
-            FX_BOOL bClone = FALSE;
-            if (m_pDevice->GetBackDrop() && m_pDevice->GetBitmap()) {
-                bClone = TRUE;
-                pClone = m_pDevice->GetBackDrop()->Clone(&rect);
-                CFX_DIBitmap *pForeBitmap = m_pDevice->GetBitmap();
-                pClone->CompositeBitmap(0, 0, pClone->GetWidth(), pClone->GetHeight(), pForeBitmap, rect.left, rect.top);
-                left = left >= 0 ? 0 : left;
-                top = top >= 0 ? 0 : top;
-                if (!pDIBitmap->IsAlphaMask())
-                    pClone->CompositeBitmap(0, 0, pClone->GetWidth(), pClone->GetHeight(), pDIBitmap,
-                                            left, top, blend_mode);
-                else
-                    pClone->CompositeMask(0, 0, pClone->GetWidth(), pClone->GetHeight(), pDIBitmap,
-                                          mask_argb, left, top, blend_mode);
-            } else {
-                pClone = pDIBitmap;
+            *dest_scan++ = orig;
+            orig = (*dest_scan - matte_r) * 255 / alpha + matte_r;
+            if (orig < 0) {
+              orig = 0;
+            } else if (orig > 255) {
+              orig = 255;
             }
-            if (m_pDevice->GetBackDrop()) {
-                m_pDevice->SetDIBits(pClone, rect.left, rect.top);
-            } else {
-                if (pDIBitmap->IsAlphaMask()) {
-                    return;
-                }
-                m_pDevice->SetDIBits(pDIBitmap, rect.left, rect.top, blend_mode);
-            }
-            if (bClone) {
-                delete pClone;
-            }
-        }
-        return;
-    }
-    int back_left, back_top;
-    FX_RECT rect(left, top, left + pDIBitmap->GetWidth(), top + pDIBitmap->GetHeight());
-    CFX_DIBitmap* pBackdrop = GetBackdrop(m_pCurObj, rect, back_left, back_top, blend_mode > FXDIB_BLEND_NORMAL && bIsolated);
-    if (!pBackdrop) {
-        return;
-    }
-    if (!pDIBitmap->IsAlphaMask())
-        pBackdrop->CompositeBitmap(left - back_left, top - back_top, pDIBitmap->GetWidth(), pDIBitmap->GetHeight(), pDIBitmap,
-                                   0, 0, blend_mode);
+            *dest_scan++ = orig;
+            dest_scan++;
+          } else {
+            dest_scan += 4;
+          }
+        }
+      }
+    }
+    bitmap_device2.GetBitmap()->ConvertFormat(FXDIB_8bppMask);
+    bitmap_device1.GetBitmap()->MultiplyAlpha(bitmap_device2.GetBitmap());
+    if (m_BitmapAlpha < 255) {
+      bitmap_device1.GetBitmap()->MultiplyAlpha(m_BitmapAlpha);
+    }
+  }
+  m_pRenderStatus->m_pDevice->SetDIBits(bitmap_device1.GetBitmap(), rect.left,
+                                        rect.top, m_BlendType);
+  return FALSE;
+}
+FX_BOOL CPDF_ImageRenderer::StartDIBSource() {
+  if (!(m_Flags & RENDER_FORCE_DOWNSAMPLE) && m_pDIBSource->GetBPP() > 1) {
+    int image_size = m_pDIBSource->GetBPP() / 8 * m_pDIBSource->GetWidth() *
+                     m_pDIBSource->GetHeight();
+    if (image_size > FPDF_HUGE_IMAGE_SIZE &&
+        !(m_Flags & RENDER_FORCE_HALFTONE)) {
+      m_Flags |= RENDER_FORCE_DOWNSAMPLE;
+    }
+  }
+  if (m_pRenderStatus->m_pDevice->StartDIBits(
+          m_pDIBSource, m_BitmapAlpha, m_FillArgb, &m_ImageMatrix, m_Flags,
+          m_DeviceHandle, 0, NULL, m_BlendType)) {
+    if (m_DeviceHandle != NULL) {
+      m_Status = 3;
+      return TRUE;
+    }
+    return FALSE;
+  }
+  CFX_FloatRect image_rect_f = m_ImageMatrix.GetUnitRect();
+  FX_RECT image_rect = image_rect_f.GetOutterRect();
+  int dest_width = image_rect.Width();
+  int dest_height = image_rect.Height();
+  if ((FXSYS_fabs(m_ImageMatrix.b) >= 0.5f || m_ImageMatrix.a == 0) ||
+      (FXSYS_fabs(m_ImageMatrix.c) >= 0.5f || m_ImageMatrix.d == 0)) {
+    if (m_pRenderStatus->m_bPrint &&
+        !(m_pRenderStatus->m_pDevice->GetRenderCaps() & FXRC_BLEND_MODE)) {
+      m_Result = FALSE;
+      return FALSE;
+    }
+    FX_RECT clip_box = m_pRenderStatus->m_pDevice->GetClipBox();
+    clip_box.Intersect(image_rect);
+    m_Status = 2;
+    m_pTransformer = new CFX_ImageTransformer;
+    m_pTransformer->Start(m_pDIBSource, &m_ImageMatrix, m_Flags, &clip_box);
+    return TRUE;
+  }
+  if (m_ImageMatrix.a < 0) {
+    dest_width = -dest_width;
+  }
+  if (m_ImageMatrix.d > 0) {
+    dest_height = -dest_height;
+  }
+  int dest_left, dest_top;
+  dest_left = dest_width > 0 ? image_rect.left : image_rect.right;
+  dest_top = dest_height > 0 ? image_rect.top : image_rect.bottom;
+  if (m_pDIBSource->IsOpaqueImage() && m_BitmapAlpha == 255) {
+    if (m_pRenderStatus->m_pDevice->StretchDIBits(
+            m_pDIBSource, dest_left, dest_top, dest_width, dest_height, m_Flags,
+            NULL, m_BlendType)) {
+      return FALSE;
+    }
+  }
+  if (m_pDIBSource->IsAlphaMask()) {
+    if (m_BitmapAlpha != 255) {
+      m_FillArgb = FXARGB_MUL_ALPHA(m_FillArgb, m_BitmapAlpha);
+    }
+    if (m_pRenderStatus->m_pDevice->StretchBitMask(
+            m_pDIBSource, dest_left, dest_top, dest_width, dest_height,
+            m_FillArgb, m_Flags)) {
+      return FALSE;
+    }
+  }
+  if (m_pRenderStatus->m_bPrint &&
+      !(m_pRenderStatus->m_pDevice->GetRenderCaps() & FXRC_BLEND_MODE)) {
+    m_Result = FALSE;
+    return TRUE;
+  }
+  FX_RECT clip_box = m_pRenderStatus->m_pDevice->GetClipBox();
+  FX_RECT dest_rect = clip_box;
+  dest_rect.Intersect(image_rect);
+  FX_RECT dest_clip(
+      dest_rect.left - image_rect.left, dest_rect.top - image_rect.top,
+      dest_rect.right - image_rect.left, dest_rect.bottom - image_rect.top);
+  CFX_DIBitmap* pStretched =
+      m_pDIBSource->StretchTo(dest_width, dest_height, m_Flags, &dest_clip);
+  if (pStretched) {
+    m_pRenderStatus->CompositeDIBitmap(pStretched, dest_rect.left,
+                                       dest_rect.top, m_FillArgb, m_BitmapAlpha,
+                                       m_BlendType, FALSE);
+    delete pStretched;
+    pStretched = NULL;
+  }
+  return FALSE;
+}
+FX_BOOL CPDF_ImageRenderer::StartBitmapAlpha() {
+  if (m_pDIBSource->IsOpaqueImage()) {
+    CFX_PathData path;
+    path.AppendRect(0, 0, 1, 1);
+    path.Transform(&m_ImageMatrix);
+    FX_DWORD fill_color =
+        ArgbEncode(0xff, m_BitmapAlpha, m_BitmapAlpha, m_BitmapAlpha);
+    m_pRenderStatus->m_pDevice->DrawPath(&path, NULL, NULL, fill_color, 0,
+                                         FXFILL_WINDING);
+  } else {
+    const CFX_DIBSource* pAlphaMask = m_pDIBSource->IsAlphaMask()
+                                          ? m_pDIBSource
+                                          : m_pDIBSource->GetAlphaMask();
+    if (FXSYS_fabs(m_ImageMatrix.b) >= 0.5f ||
+        FXSYS_fabs(m_ImageMatrix.c) >= 0.5f) {
+      int left, top;
+      CFX_DIBitmap* pTransformed =
+          pAlphaMask->TransformTo(&m_ImageMatrix, left, top);
+      if (pTransformed == NULL) {
+        return TRUE;
+      }
+      m_pRenderStatus->m_pDevice->SetBitMask(
+          pTransformed, left, top,
+          ArgbEncode(0xff, m_BitmapAlpha, m_BitmapAlpha, m_BitmapAlpha));
+      delete pTransformed;
+    } else {
+      CFX_FloatRect image_rect_f = m_ImageMatrix.GetUnitRect();
+      FX_RECT image_rect = image_rect_f.GetOutterRect();
+      int dest_width =
+          m_ImageMatrix.a > 0 ? image_rect.Width() : -image_rect.Width();
+      int dest_height =
+          m_ImageMatrix.d > 0 ? -image_rect.Height() : image_rect.Height();
+      int left = dest_width > 0 ? image_rect.left : image_rect.right;
+      int top = dest_height > 0 ? image_rect.top : image_rect.bottom;
+      m_pRenderStatus->m_pDevice->StretchBitMask(
+          pAlphaMask, left, top, dest_width, dest_height,
+          ArgbEncode(0xff, m_BitmapAlpha, m_BitmapAlpha, m_BitmapAlpha));
+    }
+    if (m_pDIBSource != pAlphaMask) {
+      delete pAlphaMask;
+    }
+  }
+  return FALSE;
+}
+FX_BOOL CPDF_ImageRenderer::Continue(IFX_Pause* pPause) {
+  if (m_Status == 1) {
+    if (m_pQuickStretcher->Continue(pPause)) {
+      return TRUE;
+    }
+    if (m_pQuickStretcher->m_pBitmap->IsAlphaMask())
+      m_pRenderStatus->m_pDevice->SetBitMask(
+          m_pQuickStretcher->m_pBitmap, m_pQuickStretcher->m_ResultLeft,
+          m_pQuickStretcher->m_ResultTop, m_FillArgb);
     else
-        pBackdrop->CompositeMask(left - back_left, top - back_top, pDIBitmap->GetWidth(), pDIBitmap->GetHeight(), pDIBitmap,
-                                 mask_argb, 0, 0, blend_mode);
-    CFX_DIBitmap* pBackdrop1 = new CFX_DIBitmap;
-    pBackdrop1->Create(pBackdrop->GetWidth(), pBackdrop->GetHeight(), FXDIB_Rgb32);
-    pBackdrop1->Clear((FX_DWORD) - 1);
-    pBackdrop1->CompositeBitmap(0, 0, pBackdrop->GetWidth(), pBackdrop->GetHeight(), pBackdrop, 0, 0);
-    delete pBackdrop;
-    pBackdrop = pBackdrop1;
-    m_pDevice->SetDIBits(pBackdrop, back_left, back_top);
-    delete pBackdrop;
-}
-FX_COLORREF CPDF_TransferFunc::TranslateColor(FX_COLORREF rgb)
-{
-    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, FX_BOOL bAutoDropSrc)
-{
-    CPDF_DIBTransferFunc* pDest = new CPDF_DIBTransferFunc(this);
-    pDest->LoadSrc(pSrc, bAutoDropSrc);
-    return pDest;
-}
-FXDIB_Format CPDF_DIBTransferFunc::GetDestFormat()
-{
-    if (m_pSrc->IsAlphaMask()) {
-        return FXDIB_8bppMask;
-    }
-#if _FXM_PLATFORM_  == _FXM_PLATFORM_APPLE_
-    return (m_pSrc->HasAlpha()) ? FXDIB_Argb : FXDIB_Rgb32;
+      m_pRenderStatus->m_pDevice->SetDIBits(
+          m_pQuickStretcher->m_pBitmap, m_pQuickStretcher->m_ResultLeft,
+          m_pQuickStretcher->m_ResultTop, m_BlendType);
+    return FALSE;
+  }
+  if (m_Status == 2) {
+    if (m_pTransformer->Continue(pPause)) {
+      return TRUE;
+    }
+    CFX_DIBitmap* pBitmap = m_pTransformer->m_Storer.Detach();
+    if (pBitmap == NULL) {
+      return FALSE;
+    }
+    if (pBitmap->IsAlphaMask()) {
+      if (m_BitmapAlpha != 255) {
+        m_FillArgb = FXARGB_MUL_ALPHA(m_FillArgb, m_BitmapAlpha);
+      }
+      m_Result = m_pRenderStatus->m_pDevice->SetBitMask(
+          pBitmap, m_pTransformer->m_ResultLeft, m_pTransformer->m_ResultTop,
+          m_FillArgb);
+    } else {
+      if (m_BitmapAlpha != 255) {
+        pBitmap->MultiplyAlpha(m_BitmapAlpha);
+      }
+      m_Result = m_pRenderStatus->m_pDevice->SetDIBits(
+          pBitmap, m_pTransformer->m_ResultLeft, m_pTransformer->m_ResultTop,
+          m_BlendType);
+    }
+    delete pBitmap;
+    return FALSE;
+  }
+  if (m_Status == 3) {
+    return m_pRenderStatus->m_pDevice->ContinueDIBits(m_DeviceHandle, pPause);
+  }
+  if (m_Status == 4) {
+    if (m_Loader.Continue(m_LoadHandle, pPause)) {
+      return TRUE;
+    }
+    if (StartRenderDIBSource()) {
+      return Continue(pPause);
+    }
+  }
+  return FALSE;
+}
+CPDF_QuickStretcher::CPDF_QuickStretcher() {
+  m_pBitmap = NULL;
+  m_pDecoder = NULL;
+  m_pCS = NULL;
+}
+CPDF_QuickStretcher::~CPDF_QuickStretcher() {
+  delete m_pBitmap;
+  if (m_pCS) {
+    m_pCS->ReleaseCS();
+  }
+  delete m_pDecoder;
+}
+ICodec_ScanlineDecoder* FPDFAPI_CreateFlateDecoder(
+    const uint8_t* src_buf,
+    FX_DWORD src_size,
+    int width,
+    int height,
+    int nComps,
+    int bpc,
+    const CPDF_Dictionary* pParams);
+FX_BOOL CPDF_QuickStretcher::Start(CPDF_ImageObject* pImageObj,
+                                   CFX_AffineMatrix* pImage2Device,
+                                   const FX_RECT* pClipBox) {
+  if (FXSYS_fabs(pImage2Device->a) < FXSYS_fabs(pImage2Device->b) * 10 &&
+      FXSYS_fabs(pImage2Device->d) < FXSYS_fabs(pImage2Device->c) * 10) {
+    return FALSE;
+  }
+  CFX_FloatRect image_rect_f = pImage2Device->GetUnitRect();
+  FX_RECT image_rect = image_rect_f.GetOutterRect();
+  m_DestWidth = image_rect.Width();
+  m_DestHeight = image_rect.Height();
+  m_bFlipX = pImage2Device->a < 0;
+  m_bFlipY = pImage2Device->d > 0;
+  FX_RECT result_rect = *pClipBox;
+  result_rect.Intersect(image_rect);
+  if (result_rect.IsEmpty()) {
+    return FALSE;
+  }
+  m_ResultWidth = result_rect.Width();
+  m_ResultHeight = result_rect.Height();
+  m_ResultLeft = result_rect.left;
+  m_ResultTop = result_rect.top;
+  m_ClipLeft = result_rect.left - image_rect.left;
+  m_ClipTop = result_rect.top - image_rect.top;
+  CPDF_Dictionary* pDict = pImageObj->m_pImage->GetDict();
+  if (pDict->GetInteger(FX_BSTRC("BitsPerComponent")) != 8) {
+    return FALSE;
+  }
+  if (pDict->KeyExist(FX_BSTRC("SMask")) || pDict->KeyExist(FX_BSTRC("Mask"))) {
+    return FALSE;
+  }
+  m_SrcWidth = pDict->GetInteger(FX_BSTRC("Width"));
+  m_SrcHeight = pDict->GetInteger(FX_BSTRC("Height"));
+  m_pCS = NULL;
+  m_Bpp = 3;
+  CPDF_Object* pCSObj = pDict->GetElementValue(FX_BSTRC("ColorSpace"));
+  if (pCSObj == NULL) {
+    return FALSE;
+  }
+  m_pCS = CPDF_ColorSpace::Load(pImageObj->m_pImage->GetDocument(), pCSObj);
+  if (m_pCS == NULL) {
+    return FALSE;
+  }
+  if (!_IsSupported(m_pCS)) {
+    return FALSE;
+  }
+  m_Bpp = m_pCS->CountComponents();
+  if (m_pCS->sRGB()) {
+    m_pCS->ReleaseCS();
+    m_pCS = NULL;
+  }
+  CPDF_Stream* pStream = pImageObj->m_pImage->GetStream();
+  m_StreamAcc.LoadAllData(pStream, FALSE, m_SrcWidth * m_SrcHeight * m_Bpp,
+                          TRUE);
+  m_pDecoder = NULL;
+  if (!m_StreamAcc.GetImageDecoder().IsEmpty()) {
+    if (m_StreamAcc.GetImageDecoder() == FX_BSTRC("DCTDecode")) {
+      const CPDF_Dictionary* pParam = m_StreamAcc.GetImageParam();
+      m_pDecoder = CPDF_ModuleMgr::Get()->GetJpegModule()->CreateDecoder(
+          m_StreamAcc.GetData(), m_StreamAcc.GetSize(), m_SrcWidth, m_SrcHeight,
+          m_Bpp,
+          pParam ? pParam->GetInteger(FX_BSTRC("ColorTransform"), 1) : 1);
+    } else if (m_StreamAcc.GetImageDecoder() == FX_BSTRC("FlateDecode")) {
+      m_pDecoder = FPDFAPI_CreateFlateDecoder(
+          m_StreamAcc.GetData(), m_StreamAcc.GetSize(), m_SrcWidth, m_SrcHeight,
+          m_Bpp, 8, m_StreamAcc.GetImageParam());
+    } else {
+      return FALSE;
+    }
+    m_pDecoder->DownScale(m_DestWidth, m_DestHeight);
+  }
+  m_pBitmap = new CFX_DIBitmap;
+#if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_
+  m_pBitmap->Create(m_ResultWidth, m_ResultHeight, FXDIB_Rgb32);
 #else
-    return (m_pSrc->HasAlpha()) ? FXDIB_Argb : FXDIB_Rgb;
+  m_pBitmap->Create(m_ResultWidth, m_ResultHeight, FXDIB_Rgb);
 #endif
-}
-CPDF_DIBTransferFunc::CPDF_DIBTransferFunc(const CPDF_TransferFunc* pTransferFunc)
-{
-    m_RampR = pTransferFunc->m_Samples;
-    m_RampG = &pTransferFunc->m_Samples[256];
-    m_RampB = &pTransferFunc->m_Samples[512];
-}
-void CPDF_DIBTransferFunc::TranslateScanline(uint8_t* dest_buf, const uint8_t* src_buf) const
-{
-    int i;
-    FX_BOOL bSkip = FALSE;
-    switch (m_pSrc->GetFormat()) {
-        case FXDIB_1bppRgb: {
-                int r0 = m_RampR[0], g0 = m_RampG[0], b0 = m_RampB[0];
-                int r1 = m_RampR[255], g1 = m_RampG[255], b1 = m_RampB[255];
-                for (i = 0; i < m_Width; i ++) {
-                    if (src_buf[i / 8] & (1 << (7 - i % 8))) {
-                        *dest_buf++ = b1;
-                        *dest_buf++ = g1;
-                        *dest_buf++ = r1;
-                    } else {
-                        *dest_buf++ = b0;
-                        *dest_buf++ = g0;
-                        *dest_buf++ = r0;
-                    }
-#if _FXM_PLATFORM_  == _FXM_PLATFORM_APPLE_
-                    dest_buf++;
+  m_LineIndex = 0;
+  return TRUE;
+}
+FX_BOOL CPDF_QuickStretcher::Continue(IFX_Pause* pPause) {
+  uint8_t* result_buf = m_pBitmap->GetBuffer();
+  int src_width = m_pDecoder ? m_pDecoder->GetWidth() : m_SrcWidth;
+  int src_height = m_pDecoder ? m_pDecoder->GetHeight() : m_SrcHeight;
+  int src_pitch = src_width * m_Bpp;
+  while (m_LineIndex < m_ResultHeight) {
+    int dest_y, src_y;
+    if (m_bFlipY) {
+      dest_y = m_ResultHeight - m_LineIndex - 1;
+      src_y =
+          (m_DestHeight - (dest_y + m_ClipTop) - 1) * src_height / m_DestHeight;
+    } else {
+      dest_y = m_LineIndex;
+      src_y = (dest_y + m_ClipTop) * src_height / m_DestHeight;
+    }
+    const uint8_t* src_scan;
+    if (m_pDecoder) {
+      src_scan = m_pDecoder->GetScanline(src_y);
+      if (src_scan == NULL) {
+        break;
+      }
+    } else {
+      src_scan = m_StreamAcc.GetData();
+      if (src_scan == NULL) {
+        break;
+      }
+      src_scan += src_y * src_pitch;
+    }
+    uint8_t* result_scan = result_buf + dest_y * m_pBitmap->GetPitch();
+    for (int x = 0; x < m_ResultWidth; x++) {
+      int dest_x = m_ClipLeft + x;
+      int src_x = (m_bFlipX ? (m_DestWidth - dest_x - 1) : dest_x) * src_width /
+                  m_DestWidth;
+      const uint8_t* src_pixel = src_scan + src_x * m_Bpp;
+      if (m_pCS == NULL) {
+        *result_scan = src_pixel[2];
+        result_scan++;
+        *result_scan = src_pixel[1];
+        result_scan++;
+        *result_scan = src_pixel[0];
+        result_scan++;
+#if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_
+        result_scan++;
 #endif
-                }
-                break;
-            }
-        case FXDIB_1bppMask: {
-                int m0 = m_RampR[0], m1 = m_RampR[255];
-                for (i = 0; i < m_Width; i ++) {
-                    if (src_buf[i / 8] & (1 << (7 - i % 8))) {
-                        *dest_buf++ = m1;
-                    } else {
-                        *dest_buf++ = m0;
-                    }
-                }
-                break;
-            }
-        case FXDIB_8bppRgb: {
-                FX_ARGB* pPal = m_pSrc->GetPalette();
-                for (i = 0; i < m_Width; i ++) {
-                    if (pPal) {
-                        FX_ARGB src_argb = pPal[*src_buf];
-                        *dest_buf++ = m_RampB[FXARGB_R(src_argb)];
-                        *dest_buf++ = m_RampG[FXARGB_G(src_argb)];
-                        *dest_buf++ = m_RampR[FXARGB_B(src_argb)];
-                    } else {
-                        FX_DWORD src_byte = *src_buf;
-                        *dest_buf++ = m_RampB[src_byte];
-                        *dest_buf++ = m_RampG[src_byte];
-                        *dest_buf++ = m_RampR[src_byte];
-                    }
-                    src_buf ++;
-#if _FXM_PLATFORM_  == _FXM_PLATFORM_APPLE_
-                    dest_buf++;
+      } else {
+        m_pCS->TranslateImageLine(result_scan, src_pixel, 1, 0, 0);
+#if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_
+        result_scan += 4;
+#else
+        result_scan += 3;
 #endif
-                }
-                break;
-            }
-        case FXDIB_8bppMask:
-            for (i = 0; i < m_Width; i ++) {
-                *dest_buf++ = m_RampR[*(src_buf++)];
-            }
-            break;
-        case FXDIB_Rgb:
-            for (i = 0; i < m_Width; i ++) {
-                *dest_buf++ = m_RampB[*(src_buf++)];
-                *dest_buf++ = m_RampG[*(src_buf++)];
-                *dest_buf++ = m_RampR[*(src_buf++)];
-#if _FXM_PLATFORM_  == _FXM_PLATFORM_APPLE_
-                dest_buf++;
+      }
+    }
+    m_LineIndex++;
+    if (pPause && pPause->NeedToPauseNow()) {
+      return TRUE;
+    }
+  }
+  return FALSE;
+}
+CFX_DIBitmap* CPDF_RenderStatus::LoadSMask(CPDF_Dictionary* pSMaskDict,
+                                           FX_RECT* pClipRect,
+                                           const CFX_AffineMatrix* pMatrix) {
+  if (pSMaskDict == NULL) {
+    return NULL;
+  }
+  CFX_DIBitmap* pMask = NULL;
+  int width = pClipRect->right - pClipRect->left;
+  int height = pClipRect->bottom - pClipRect->top;
+  FX_BOOL bLuminosity = FALSE;
+  bLuminosity = pSMaskDict->GetConstString(FX_BSTRC("S")) != FX_BSTRC("Alpha");
+  CPDF_Stream* pGroup = pSMaskDict->GetStream(FX_BSTRC("G"));
+  if (pGroup == NULL) {
+    return NULL;
+  }
+  CPDF_Function* pFunc = NULL;
+  CPDF_Object* pFuncObj = pSMaskDict->GetElementValue(FX_BSTRC("TR"));
+  if (pFuncObj && (pFuncObj->GetType() == PDFOBJ_DICTIONARY ||
+                   pFuncObj->GetType() == PDFOBJ_STREAM)) {
+    pFunc = CPDF_Function::Load(pFuncObj);
+  }
+  CFX_AffineMatrix matrix = *pMatrix;
+  matrix.TranslateI(-pClipRect->left, -pClipRect->top);
+  CPDF_Form form(m_pContext->m_pDocument, m_pContext->m_pPageResources, pGroup);
+  form.ParseContent(NULL, NULL, NULL, NULL);
+  CFX_FxgeDevice bitmap_device;
+#if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_
+  if (!bitmap_device.Create(width, height,
+                            bLuminosity ? FXDIB_Rgb32 : FXDIB_8bppMask)) {
+    return NULL;
+  }
+#else
+  if (!bitmap_device.Create(width, height,
+                            bLuminosity ? FXDIB_Rgb : FXDIB_8bppMask)) {
+    return NULL;
+  }
 #endif
-            }
-            break;
-        case FXDIB_Rgb32:
-            bSkip = TRUE;
-        case FXDIB_Argb:
-            for (i = 0; i < m_Width; i ++) {
-                *dest_buf++ = m_RampB[*(src_buf++)];
-                *dest_buf++ = m_RampG[*(src_buf++)];
-                *dest_buf++ = m_RampR[*(src_buf++)];
-                if (!bSkip) {
-                    *dest_buf++ = *src_buf;
-                }
-#if _FXM_PLATFORM_  == _FXM_PLATFORM_APPLE_
-                else {
-                    dest_buf++;
-                }
-#endif
-                src_buf ++;
-            }
-            break;
-        default:
-            break;
-    }
-}
-void CPDF_DIBTransferFunc::TranslateDownSamples(uint8_t* dest_buf, const uint8_t* src_buf, int pixels, int Bpp) const
-{
-    if (Bpp == 8) {
-        for (int i = 0; i < pixels; i ++) {
-            *dest_buf++ = m_RampR[*(src_buf++)];
-        }
-    } else if (Bpp == 24) {
-        for (int i = 0; i < pixels; i ++) {
-            *dest_buf++ = m_RampB[*(src_buf++)];
-            *dest_buf++ = m_RampG[*(src_buf++)];
-            *dest_buf++ = m_RampR[*(src_buf++)];
-        }
-    } else {
-#if _FXM_PLATFORM_  == _FXM_PLATFORM_APPLE_
-        if (!m_pSrc->HasAlpha()) {
-            for (int i = 0; i < pixels; i ++) {
-                *dest_buf++ = m_RampB[*(src_buf++)];
-                *dest_buf++ = m_RampG[*(src_buf++)];
-                *dest_buf++ = m_RampR[*(src_buf++)];
-                dest_buf++;
-                src_buf++;
-            }
-        } else
-#endif
-            for (int i = 0; i < pixels; i ++) {
-                *dest_buf++ = m_RampB[*(src_buf++)];
-                *dest_buf++ = m_RampG[*(src_buf++)];
-                *dest_buf++ = m_RampR[*(src_buf++)];
-                *dest_buf++ = *(src_buf++);
-            }
-    }
-}
-static FX_BOOL _IsSupported(CPDF_ColorSpace* pCS)
-{
-    if (pCS->GetFamily() == PDFCS_DEVICERGB || pCS->GetFamily() == PDFCS_DEVICEGRAY ||
-            pCS->GetFamily() == PDFCS_DEVICECMYK || pCS->GetFamily() == PDFCS_CALGRAY ||
-            pCS->GetFamily() == PDFCS_CALRGB) {
-        return TRUE;
-    }
-    if (pCS->GetFamily() == PDFCS_INDEXED && _IsSupported(pCS->GetBaseCS())) {
-        return TRUE;
-    }
-    return FALSE;
-}
-CPDF_ImageRenderer::CPDF_ImageRenderer()
-{
-    m_pRenderStatus = NULL;
-    m_pImageObject = NULL;
-    m_Result = TRUE;
-    m_Status = 0;
-    m_pQuickStretcher = NULL;
-    m_pTransformer = NULL;
-    m_DeviceHandle = NULL;
-    m_LoadHandle = NULL;
-    m_pClone = NULL;
-    m_bStdCS = FALSE;
-    m_bPatternColor = FALSE;
-    m_BlendType = FXDIB_BLEND_NORMAL;
-    m_pPattern = NULL;
-    m_pObj2Device = NULL;
-}
-CPDF_ImageRenderer::~CPDF_ImageRenderer()
-{
-    delete m_pQuickStretcher;
-    delete m_pTransformer;
-    if (m_DeviceHandle) {
-        m_pRenderStatus->m_pDevice->CancelDIBits(m_DeviceHandle);
-    }
-    delete (CPDF_ProgressiveImageLoaderHandle*)m_LoadHandle;
-    delete m_pClone;
-}
-FX_BOOL CPDF_ImageRenderer::StartLoadDIBSource()
-{
-    CFX_FloatRect image_rect_f = m_ImageMatrix.GetUnitRect();
-    FX_RECT image_rect = image_rect_f.GetOutterRect();
-    int dest_width = image_rect.Width();
-    int dest_height = image_rect.Height();
-    if (m_ImageMatrix.a < 0) {
-        dest_width = -dest_width;
-    }
-    if (m_ImageMatrix.d > 0) {
-        dest_height = -dest_height;
-    }
-    if (m_Loader.StartLoadImage(m_pImageObject, m_pRenderStatus->m_pContext->m_pPageCache, m_LoadHandle, m_bStdCS,
-                                m_pRenderStatus->m_GroupFamily, m_pRenderStatus->m_bLoadMask, m_pRenderStatus, dest_width, dest_height)) {
-        if (m_LoadHandle != NULL) {
-            m_Status = 4;
-            return TRUE;
-        }
-        return FALSE;
-    }
-    return FALSE;
-}
-FX_BOOL CPDF_ImageRenderer::StartRenderDIBSource()
-{
-    if (m_Loader.m_pBitmap == NULL) {
-        return FALSE;
-    }
-    m_BitmapAlpha = 255;
-    const CPDF_GeneralStateData* pGeneralState = m_pImageObject->m_GeneralState;
-    if (pGeneralState) {
-        m_BitmapAlpha = FXSYS_round(pGeneralState->m_FillAlpha * 255);
-    }
-    m_pDIBSource = m_Loader.m_pBitmap;
-    if (m_pRenderStatus->m_Options.m_ColorMode == RENDER_COLOR_ALPHA && m_Loader.m_pMask == NULL) {
-        return StartBitmapAlpha();
-    }
-    if (pGeneralState && pGeneralState->m_pTR) {
-        if (!pGeneralState->m_pTransferFunc) {
-            ((CPDF_GeneralStateData*)pGeneralState)->m_pTransferFunc = m_pRenderStatus->GetTransferFunc(pGeneralState->m_pTR);
-        }
-        if (pGeneralState->m_pTransferFunc && !pGeneralState->m_pTransferFunc->m_bIdentity) {
-            m_pDIBSource = m_Loader.m_pBitmap = pGeneralState->m_pTransferFunc->TranslateImage(m_Loader.m_pBitmap, !m_Loader.m_bCached);
-            if (m_Loader.m_bCached && m_Loader.m_pMask) {
-                m_Loader.m_pMask = m_Loader.m_pMask->Clone();
-            }
-            m_Loader.m_bCached = FALSE;
-        }
-    }
-    m_FillArgb = 0;
-    m_bPatternColor = FALSE;
-    m_pPattern = NULL;
-    if (m_pDIBSource->IsAlphaMask()) {
-        CPDF_Color* pColor = m_pImageObject->m_ColorState.GetFillColor();
-        if (pColor && pColor->IsPattern()) {
-            m_pPattern = pColor->GetPattern();
-            if (m_pPattern != NULL) {
-                m_bPatternColor = TRUE;
-            }
-        }
-        m_FillArgb = m_pRenderStatus->GetFillArgb(m_pImageObject);
-    } else if (m_pRenderStatus->m_Options.m_ColorMode == RENDER_COLOR_GRAY) {
-        m_pClone = m_pDIBSource->Clone();
-        m_pClone->ConvertColorScale(m_pRenderStatus->m_Options.m_BackColor, m_pRenderStatus->m_Options.m_ForeColor);
-        m_pDIBSource = m_pClone;
-    }
-    m_Flags = 0;
-    if (m_pRenderStatus->m_Options.m_Flags & RENDER_FORCE_DOWNSAMPLE) {
-        m_Flags |= RENDER_FORCE_DOWNSAMPLE;
-    } else if (m_pRenderStatus->m_Options.m_Flags & RENDER_FORCE_HALFTONE) {
-        m_Flags |= RENDER_FORCE_HALFTONE;
-    }
-    if (m_pRenderStatus->m_pDevice->GetDeviceClass() != FXDC_DISPLAY) {
-        CPDF_Object* pFilters = m_pImageObject->m_pImage->GetStream()->GetDict()->GetElementValue(FX_BSTRC("Filter"));
-        if (pFilters) {
-            if (pFilters->GetType() == PDFOBJ_NAME) {
-                CFX_ByteStringC bsDecodeType = pFilters->GetConstString();
-                if (bsDecodeType == FX_BSTRC("DCTDecode") || bsDecodeType == FX_BSTRC("JPXDecode")) {
-                    m_Flags |= FXRENDER_IMAGE_LOSSY;
-                }
-            } else if (pFilters->GetType() == PDFOBJ_ARRAY) {
-                CPDF_Array* pArray = (CPDF_Array*)pFilters;
-                for (FX_DWORD i = 0; i < pArray->GetCount(); i ++) {
-                    CFX_ByteStringC bsDecodeType = pArray->GetConstString(i);
-                    if (bsDecodeType == FX_BSTRC("DCTDecode") || bsDecodeType == FX_BSTRC("JPXDecode")) {
-                        m_Flags |= FXRENDER_IMAGE_LOSSY;
-                        break;
-                    }
-                }
-            }
-        }
-    }
-    if (m_pRenderStatus->m_Options.m_Flags & RENDER_NOIMAGESMOOTH) {
-        m_Flags |= FXDIB_NOSMOOTH;
-    } else if (m_pImageObject->m_pImage->IsInterpol()) {
-        m_Flags |= FXDIB_INTERPOL;
-    }
-    if (m_Loader.m_pMask) {
-        return DrawMaskedImage();
-    }
-    if (m_bPatternColor) {
-        return DrawPatternImage(m_pObj2Device);
-    }
-    if (m_BitmapAlpha == 255 && pGeneralState && pGeneralState->m_FillOP &&
-            pGeneralState->m_OPMode == 0 && pGeneralState->m_BlendType == FXDIB_BLEND_NORMAL && pGeneralState->m_StrokeAlpha == 1 && pGeneralState->m_FillAlpha == 1) {
-        CPDF_Document* pDocument = NULL;
-        CPDF_Page* pPage = NULL;
-        if (m_pRenderStatus->m_pContext->m_pPageCache) {
-            pPage = m_pRenderStatus->m_pContext->m_pPageCache->GetPage();
-            pDocument = pPage->m_pDocument;
-        } else {
-            pDocument = m_pImageObject->m_pImage->GetDocument();
-        }
-        CPDF_Dictionary* pPageResources = pPage ? pPage->m_pPageResources : NULL;
-        CPDF_Object* pCSObj = m_pImageObject->m_pImage->GetStream()->GetDict()->GetElementValue(FX_BSTRC("ColorSpace"));
-        CPDF_ColorSpace* pColorSpace = pDocument->LoadColorSpace(pCSObj, pPageResources);
-        if (pColorSpace) {
-            int format = pColorSpace->GetFamily();
-            if (format == PDFCS_DEVICECMYK || format == PDFCS_SEPARATION || format == PDFCS_DEVICEN) {
-                m_BlendType = FXDIB_BLEND_DARKEN;
-            }
-            pDocument->GetPageData()->ReleaseColorSpace(pCSObj);
-        }
-    }
-    return StartDIBSource();
-}
-FX_BOOL CPDF_ImageRenderer::Start(CPDF_RenderStatus* pStatus, const CPDF_PageObject* pObj, const CFX_AffineMatrix* pObj2Device, FX_BOOL bStdCS, int blendType)
-{
-    m_pRenderStatus = pStatus;
-    m_bStdCS = bStdCS;
-    m_pImageObject = (CPDF_ImageObject*)pObj;
-    m_BlendType = blendType;
-    m_pObj2Device = pObj2Device;
-    CPDF_Dictionary* pOC = m_pImageObject->m_pImage->GetOC();
-    if (pOC && m_pRenderStatus->m_Options.m_pOCContext && !m_pRenderStatus->m_Options.m_pOCContext->CheckOCGVisible(pOC)) {
-        return FALSE;
-    }
-    m_ImageMatrix = m_pImageObject->m_Matrix;
-    m_ImageMatrix.Concat(*pObj2Device);
-    if (StartLoadDIBSource()) {
-        return TRUE;
-    }
-    return StartRenderDIBSource();
-}
-FX_BOOL CPDF_ImageRenderer::Start(CPDF_RenderStatus* pStatus, const CFX_DIBSource* pDIBSource, FX_ARGB bitmap_argb,
-                                  int bitmap_alpha, const CFX_AffineMatrix* pImage2Device, FX_DWORD flags, FX_BOOL bStdCS, int blendType)
-{
-    m_pRenderStatus = pStatus;
-    m_pDIBSource = pDIBSource;
-    m_FillArgb = bitmap_argb;
-    m_BitmapAlpha = bitmap_alpha;
-    m_ImageMatrix = *pImage2Device;
-    m_Flags = flags;
-    m_bStdCS = bStdCS;
-    m_BlendType = blendType;
-    return StartDIBSource();
-}
-FX_BOOL CPDF_ImageRenderer::DrawPatternImage(const CFX_Matrix* pObj2Device)
-{
-    if (m_pRenderStatus->m_bPrint && !(m_pRenderStatus->m_pDevice->GetRenderCaps() & FXRC_BLEND_MODE)) {
-        m_Result = FALSE;
-        return FALSE;
-    }
-    FX_RECT rect = m_ImageMatrix.GetUnitRect().GetOutterRect();
-    rect.Intersect(m_pRenderStatus->m_pDevice->GetClipBox());
-    if (rect.IsEmpty()) {
-        return FALSE;
-    }
-    CFX_AffineMatrix new_matrix = m_ImageMatrix;
-    new_matrix.TranslateI(-rect.left, -rect.top);
-    int width = rect.Width();
-    int height = rect.Height();
-    CFX_FxgeDevice bitmap_device1;
-    if (!bitmap_device1.Create(rect.Width(), rect.Height(), FXDIB_Rgb32)) {
-        return TRUE;
-    }
-    bitmap_device1.GetBitmap()->Clear(0xffffff);
-    {
-        CPDF_RenderStatus bitmap_render;
-        bitmap_render.Initialize(m_pRenderStatus->m_pContext, &bitmap_device1, NULL, NULL,
-                                 NULL, NULL, &m_pRenderStatus->m_Options, 0, m_pRenderStatus->m_bDropObjects, NULL, TRUE);
-        CFX_Matrix patternDevice = *pObj2Device;
-        patternDevice.Translate((FX_FLOAT) - rect.left, (FX_FLOAT) - rect.top);
-        if(m_pPattern->m_PatternType == PATTERN_TILING) {
-            bitmap_render.DrawTilingPattern((CPDF_TilingPattern*)m_pPattern, m_pImageObject, &patternDevice, FALSE);
-        } else {
-            bitmap_render.DrawShadingPattern((CPDF_ShadingPattern*)m_pPattern, m_pImageObject, &patternDevice, FALSE);
-        }
-    }
-    {
-        CFX_FxgeDevice bitmap_device2;
-        if (!bitmap_device2.Create(rect.Width(), rect.Height(), FXDIB_8bppRgb)) {
-            return TRUE;
-        }
-        bitmap_device2.GetBitmap()->Clear(0);
-        CPDF_RenderStatus bitmap_render;
-        bitmap_render.Initialize(m_pRenderStatus->m_pContext, &bitmap_device2, NULL, NULL,
-                                 NULL, NULL, NULL, 0, m_pRenderStatus->m_bDropObjects, NULL, TRUE);
-        CPDF_ImageRenderer image_render;
-        if (image_render.Start(&bitmap_render, m_pDIBSource, 0xffffffff, 255, &new_matrix, m_Flags, TRUE)) {
-            image_render.Continue(NULL);
-        }
-        if (m_Loader.m_MatteColor != 0xffffffff) {
-            int matte_r = FXARGB_R(m_Loader.m_MatteColor);
-            int matte_g = FXARGB_G(m_Loader.m_MatteColor);
-            int matte_b = FXARGB_B(m_Loader.m_MatteColor);
-            for (int row = 0; row < height; row ++) {
-                uint8_t* dest_scan = (uint8_t*)bitmap_device1.GetBitmap()->GetScanline(row);
-                const uint8_t* mask_scan = bitmap_device2.GetBitmap()->GetScanline(row);
-                for (int col = 0; col < width; col ++) {
-                    int alpha = *mask_scan ++;
-                    if (alpha) {
-                        int orig = (*dest_scan - matte_b) * 255 / alpha + matte_b;
-                        if (orig < 0) {
-                            orig = 0;
-                        } else if (orig > 255) {
-                            orig = 255;
-                        }
-                        *dest_scan++ = orig;
-                        orig = (*dest_scan - matte_g) * 255 / alpha + matte_g;
-                        if (orig < 0) {
-                            orig = 0;
-                        } else if (orig > 255) {
-                            orig = 255;
-                        }
-                        *dest_scan++ = orig;
-                        orig = (*dest_scan - matte_r) * 255 / alpha + matte_r;
-                        if (orig < 0) {
-                            orig = 0;
-                        } else if (orig > 255) {
-                            orig = 255;
-                        }
-                        *dest_scan++ = orig;
-                        dest_scan ++;
-                    } else {
-                        dest_scan += 4;
-                    }
-                }
-            }
-        }
-        bitmap_device2.GetBitmap()->ConvertFormat(FXDIB_8bppMask);
-        bitmap_device1.GetBitmap()->MultiplyAlpha(bitmap_device2.GetBitmap());
-        bitmap_device1.GetBitmap()->MultiplyAlpha(255);
-    }
-    m_pRenderStatus->m_pDevice->SetDIBits(bitmap_device1.GetBitmap(), rect.left, rect.top, m_BlendType);
-    return FALSE;
-}
-FX_BOOL CPDF_ImageRenderer::DrawMaskedImage()
-{
-    if (m_pRenderStatus->m_bPrint && !(m_pRenderStatus->m_pDevice->GetRenderCaps() & FXRC_BLEND_MODE)) {
-        m_Result = FALSE;
-        return FALSE;
-    }
-    FX_RECT rect = m_ImageMatrix.GetUnitRect().GetOutterRect();
-    rect.Intersect(m_pRenderStatus->m_pDevice->GetClipBox());
-    if (rect.IsEmpty()) {
-        return FALSE;
-    }
-    CFX_AffineMatrix new_matrix = m_ImageMatrix;
-    new_matrix.TranslateI(-rect.left, -rect.top);
-    int width = rect.Width();
-    int height = rect.Height();
-    CFX_FxgeDevice bitmap_device1;
-    if (!bitmap_device1.Create(width, height, FXDIB_Rgb32)) {
-        return TRUE;
-    }
-    bitmap_device1.GetBitmap()->Clear(0xffffff);
-    {
-        CPDF_RenderStatus bitmap_render;
-        bitmap_render.Initialize(m_pRenderStatus->m_pContext, &bitmap_device1, NULL, NULL,
-                                 NULL, NULL, NULL, 0, m_pRenderStatus->m_bDropObjects, NULL, TRUE);
-        CPDF_ImageRenderer image_render;
-        if (image_render.Start(&bitmap_render, m_pDIBSource, 0, 255, &new_matrix, m_Flags, TRUE)) {
-            image_render.Continue(NULL);
-        }
-    }
-    {
-        CFX_FxgeDevice bitmap_device2;
-        if (!bitmap_device2.Create(width, height, FXDIB_8bppRgb)) {
-            return TRUE;
-        }
-        bitmap_device2.GetBitmap()->Clear(0);
-        CPDF_RenderStatus bitmap_render;
-        bitmap_render.Initialize(m_pRenderStatus->m_pContext, &bitmap_device2, NULL, NULL,
-                                 NULL, NULL, NULL, 0, m_pRenderStatus->m_bDropObjects, NULL, TRUE);
-        CPDF_ImageRenderer image_render;
-        if (image_render.Start(&bitmap_render, m_Loader.m_pMask, 0xffffffff, 255, &new_matrix, m_Flags, TRUE)) {
-            image_render.Continue(NULL);
-        }
-        if (m_Loader.m_MatteColor != 0xffffffff) {
-            int matte_r = FXARGB_R(m_Loader.m_MatteColor);
-            int matte_g = FXARGB_G(m_Loader.m_MatteColor);
-            int matte_b = FXARGB_B(m_Loader.m_MatteColor);
-            for (int row = 0; row < height; row ++) {
-                uint8_t* dest_scan = (uint8_t*)bitmap_device1.GetBitmap()->GetScanline(row);
-                const uint8_t* mask_scan = bitmap_device2.GetBitmap()->GetScanline(row);
-                for (int col = 0; col < width; col ++) {
-                    int alpha = *mask_scan ++;
-                    if (alpha) {
-                        int orig = (*dest_scan - matte_b) * 255 / alpha + matte_b;
-                        if (orig < 0) {
-                            orig = 0;
-                        } else if (orig > 255) {
-                            orig = 255;
-                        }
-                        *dest_scan++ = orig;
-                        orig = (*dest_scan - matte_g) * 255 / alpha + matte_g;
-                        if (orig < 0) {
-                            orig = 0;
-                        } else if (orig > 255) {
-                            orig = 255;
-                        }
-                        *dest_scan++ = orig;
-                        orig = (*dest_scan - matte_r) * 255 / alpha + matte_r;
-                        if (orig < 0) {
-                            orig = 0;
-                        } else if (orig > 255) {
-                            orig = 255;
-                        }
-                        *dest_scan++ = orig;
-                        dest_scan ++;
-                    } else {
-                        dest_scan += 4;
-                    }
-                }
-            }
-        }
-        bitmap_device2.GetBitmap()->ConvertFormat(FXDIB_8bppMask);
-        bitmap_device1.GetBitmap()->MultiplyAlpha(bitmap_device2.GetBitmap());
-        if (m_BitmapAlpha < 255) {
-            bitmap_device1.GetBitmap()->MultiplyAlpha(m_BitmapAlpha);
-        }
-    }
-    m_pRenderStatus->m_pDevice->SetDIBits(bitmap_device1.GetBitmap(), rect.left, rect.top, m_BlendType);
-    return FALSE;
-}
-FX_BOOL CPDF_ImageRenderer::StartDIBSource()
-{
-    if (!(m_Flags & RENDER_FORCE_DOWNSAMPLE) && m_pDIBSource->GetBPP() > 1) {
-        int image_size = m_pDIBSource->GetBPP() / 8 * m_pDIBSource->GetWidth() * m_pDIBSource->GetHeight();
-        if (image_size > FPDF_HUGE_IMAGE_SIZE && !(m_Flags & RENDER_FORCE_HALFTONE)) {
-            m_Flags |= RENDER_FORCE_DOWNSAMPLE;
-        }
-    }
-    if (m_pRenderStatus->m_pDevice->StartDIBits(m_pDIBSource, m_BitmapAlpha, m_FillArgb,
-            &m_ImageMatrix, m_Flags, m_DeviceHandle, 0, NULL, m_BlendType)) {
-        if (m_DeviceHandle != NULL) {
-            m_Status = 3;
-            return TRUE;
-        }
-        return FALSE;
-    }
-    CFX_FloatRect image_rect_f = m_ImageMatrix.GetUnitRect();
-    FX_RECT image_rect = image_rect_f.GetOutterRect();
-    int dest_width = image_rect.Width();
-    int dest_height = image_rect.Height();
-    if ((FXSYS_fabs(m_ImageMatrix.b) >= 0.5f || m_ImageMatrix.a == 0) ||
-            (FXSYS_fabs(m_ImageMatrix.c) >= 0.5f || m_ImageMatrix.d == 0) ) {
-        if (m_pRenderStatus->m_bPrint && !(m_pRenderStatus->m_pDevice->GetRenderCaps() & FXRC_BLEND_MODE)) {
-            m_Result = FALSE;
-            return FALSE;
-        }
-        FX_RECT clip_box = m_pRenderStatus->m_pDevice->GetClipBox();
-        clip_box.Intersect(image_rect);
-        m_Status = 2;
-        m_pTransformer = new CFX_ImageTransformer;
-        m_pTransformer->Start(m_pDIBSource, &m_ImageMatrix, m_Flags, &clip_box);
-        return TRUE;
-    }
-    if (m_ImageMatrix.a < 0) {
-        dest_width = -dest_width;
-    }
-    if (m_ImageMatrix.d > 0) {
-        dest_height = -dest_height;
-    }
-    int dest_left, dest_top;
-    dest_left = dest_width > 0 ? image_rect.left : image_rect.right;
-    dest_top = dest_height > 0 ? image_rect.top : image_rect.bottom;
-    if (m_pDIBSource->IsOpaqueImage() && m_BitmapAlpha == 255) {
-        if (m_pRenderStatus->m_pDevice->StretchDIBits(m_pDIBSource, dest_left, dest_top,
-                dest_width, dest_height, m_Flags, NULL, m_BlendType)) {
-            return FALSE;
-        }
-    }
-    if (m_pDIBSource->IsAlphaMask()) {
-        if (m_BitmapAlpha != 255) {
-            m_FillArgb = FXARGB_MUL_ALPHA(m_FillArgb, m_BitmapAlpha);
-        }
-        if (m_pRenderStatus->m_pDevice->StretchBitMask(m_pDIBSource, dest_left, dest_top, dest_width, dest_height, m_FillArgb, m_Flags)) {
-            return FALSE;
-        }
-    }
-    if (m_pRenderStatus->m_bPrint && !(m_pRenderStatus->m_pDevice->GetRenderCaps() & FXRC_BLEND_MODE)) {
-        m_Result = FALSE;
-        return TRUE;
-    }
-    FX_RECT clip_box = m_pRenderStatus->m_pDevice->GetClipBox();
-    FX_RECT dest_rect = clip_box;
-    dest_rect.Intersect(image_rect);
-    FX_RECT dest_clip(dest_rect.left - image_rect.left, dest_rect.top - image_rect.top,
-                      dest_rect.right - image_rect.left, dest_rect.bottom - image_rect.top);
-    CFX_DIBitmap* pStretched = m_pDIBSource->StretchTo(dest_width, dest_height, m_Flags, &dest_clip);
-    if (pStretched) {
-        m_pRenderStatus->CompositeDIBitmap(pStretched, dest_rect.left, dest_rect.top, m_FillArgb,
-                                           m_BitmapAlpha, m_BlendType, FALSE);
-        delete pStretched;
-        pStretched = NULL;
-    }
-    return FALSE;
-}
-FX_BOOL CPDF_ImageRenderer::StartBitmapAlpha()
-{
-    if (m_pDIBSource->IsOpaqueImage()) {
-        CFX_PathData path;
-        path.AppendRect(0, 0, 1, 1);
-        path.Transform(&m_ImageMatrix);
-        FX_DWORD fill_color = ArgbEncode(0xff, m_BitmapAlpha, m_BitmapAlpha, m_BitmapAlpha);
-        m_pRenderStatus->m_pDevice->DrawPath(&path, NULL, NULL, fill_color, 0, FXFILL_WINDING);
-    } else {
-        const CFX_DIBSource* pAlphaMask = m_pDIBSource->IsAlphaMask() ? m_pDIBSource : m_pDIBSource->GetAlphaMask();
-        if (FXSYS_fabs(m_ImageMatrix.b) >= 0.5f || FXSYS_fabs(m_ImageMatrix.c) >= 0.5f) {
-            int left, top;
-            CFX_DIBitmap* pTransformed = pAlphaMask->TransformTo(&m_ImageMatrix, left, top);
-            if (pTransformed == NULL) {
-                return TRUE;
-            }
-            m_pRenderStatus->m_pDevice->SetBitMask(pTransformed, left, top, ArgbEncode(0xff, m_BitmapAlpha, m_BitmapAlpha, m_BitmapAlpha));
-            delete pTransformed;
-        } else {
-            CFX_FloatRect image_rect_f = m_ImageMatrix.GetUnitRect();
-            FX_RECT image_rect = image_rect_f.GetOutterRect();
-            int dest_width = m_ImageMatrix.a > 0 ? image_rect.Width() : -image_rect.Width();
-            int dest_height = m_ImageMatrix.d > 0 ? -image_rect.Height() : image_rect.Height();
-            int left = dest_width > 0 ? image_rect.left : image_rect.right;
-            int top = dest_height > 0 ? image_rect.top : image_rect.bottom;
-            m_pRenderStatus->m_pDevice->StretchBitMask(pAlphaMask, left, top, dest_width, dest_height,
-                    ArgbEncode(0xff, m_BitmapAlpha, m_BitmapAlpha, m_BitmapAlpha));
-        }
-        if (m_pDIBSource != pAlphaMask) {
-            delete pAlphaMask;
-        }
-    }
-    return FALSE;
-}
-FX_BOOL CPDF_ImageRenderer::Continue(IFX_Pause* pPause)
-{
-    if (m_Status == 1) {
-        if (m_pQuickStretcher->Continue(pPause)) {
-            return TRUE;
-        }
-        if (m_pQuickStretcher->m_pBitmap->IsAlphaMask())
-            m_pRenderStatus->m_pDevice->SetBitMask(m_pQuickStretcher->m_pBitmap, m_pQuickStretcher->m_ResultLeft,
-                                                   m_pQuickStretcher->m_ResultTop, m_FillArgb);
-        else
-            m_pRenderStatus->m_pDevice->SetDIBits(m_pQuickStretcher->m_pBitmap, m_pQuickStretcher->m_ResultLeft,
-                                                  m_pQuickStretcher->m_ResultTop, m_BlendType);
-        return FALSE;
-    }
-    if (m_Status == 2) {
-        if (m_pTransformer->Continue(pPause)) {
-            return TRUE;
-        }
-        CFX_DIBitmap* pBitmap = m_pTransformer->m_Storer.Detach();
-        if (pBitmap == NULL) {
-            return FALSE;
-        }
-        if (pBitmap->IsAlphaMask()) {
-            if (m_BitmapAlpha != 255) {
-                m_FillArgb = FXARGB_MUL_ALPHA(m_FillArgb, m_BitmapAlpha);
-            }
-            m_Result = m_pRenderStatus->m_pDevice->SetBitMask(pBitmap,
-                       m_pTransformer->m_ResultLeft, m_pTransformer->m_ResultTop, m_FillArgb);
-        } else {
-            if (m_BitmapAlpha != 255) {
-                pBitmap->MultiplyAlpha(m_BitmapAlpha);
-            }
-            m_Result = m_pRenderStatus->m_pDevice->SetDIBits(pBitmap,
-                       m_pTransformer->m_ResultLeft, m_pTransformer->m_ResultTop, m_BlendType);
-        }
-        delete pBitmap;
-        return FALSE;
-    }
-    if (m_Status == 3) {
-        return m_pRenderStatus->m_pDevice->ContinueDIBits(m_DeviceHandle, pPause);
-    }
-    if (m_Status == 4) {
-        if (m_Loader.Continue(m_LoadHandle, pPause)) {
-            return TRUE;
-        }
-        if (StartRenderDIBSource()) {
-            return Continue(pPause);
-        }
-    }
-    return FALSE;
-}
-CPDF_QuickStretcher::CPDF_QuickStretcher()
-{
-    m_pBitmap = NULL;
-    m_pDecoder = NULL;
-    m_pCS = NULL;
-}
-CPDF_QuickStretcher::~CPDF_QuickStretcher()
-{
-    delete m_pBitmap;
-    if (m_pCS) {
-        m_pCS->ReleaseCS();
-    }
-    delete m_pDecoder;
-}
-ICodec_ScanlineDecoder* FPDFAPI_CreateFlateDecoder(const uint8_t* src_buf, FX_DWORD src_size, int width, int height,
-        int nComps, int bpc, const CPDF_Dictionary* pParams);
-FX_BOOL CPDF_QuickStretcher::Start(CPDF_ImageObject* pImageObj, CFX_AffineMatrix* pImage2Device, const FX_RECT* pClipBox)
-{
-    if (FXSYS_fabs(pImage2Device->a) < FXSYS_fabs(pImage2Device->b) * 10 && FXSYS_fabs(pImage2Device->d) < FXSYS_fabs(pImage2Device->c) * 10) {
-        return FALSE;
-    }
-    CFX_FloatRect image_rect_f = pImage2Device->GetUnitRect();
-    FX_RECT image_rect = image_rect_f.GetOutterRect();
-    m_DestWidth = image_rect.Width();
-    m_DestHeight = image_rect.Height();
-    m_bFlipX = pImage2Device->a < 0;
-    m_bFlipY = pImage2Device->d > 0;
-    FX_RECT result_rect = *pClipBox;
-    result_rect.Intersect(image_rect);
-    if (result_rect.IsEmpty()) {
-        return FALSE;
-    }
-    m_ResultWidth = result_rect.Width();
-    m_ResultHeight = result_rect.Height();
-    m_ResultLeft = result_rect.left;
-    m_ResultTop = result_rect.top;
-    m_ClipLeft = result_rect.left - image_rect.left;
-    m_ClipTop = result_rect.top - image_rect.top;
-    CPDF_Dictionary* pDict = pImageObj->m_pImage->GetDict();
-    if (pDict->GetInteger(FX_BSTRC("BitsPerComponent")) != 8) {
-        return FALSE;
-    }
-    if (pDict->KeyExist(FX_BSTRC("SMask")) || pDict->KeyExist(FX_BSTRC("Mask"))) {
-        return FALSE;
-    }
-    m_SrcWidth = pDict->GetInteger(FX_BSTRC("Width"));
-    m_SrcHeight = pDict->GetInteger(FX_BSTRC("Height"));
-    m_pCS = NULL;
-    m_Bpp = 3;
-    CPDF_Object* pCSObj = pDict->GetElementValue(FX_BSTRC("ColorSpace"));
-    if (pCSObj == NULL) {
-        return FALSE;
-    }
-    m_pCS = CPDF_ColorSpace::Load(pImageObj->m_pImage->GetDocument(), pCSObj);
-    if (m_pCS == NULL) {
-        return FALSE;
-    }
-    if (!_IsSupported(m_pCS)) {
-        return FALSE;
-    }
-    m_Bpp = m_pCS->CountComponents();
-    if (m_pCS->sRGB()) {
-        m_pCS->ReleaseCS();
-        m_pCS = NULL;
-    }
-    CPDF_Stream* pStream = pImageObj->m_pImage->GetStream();
-    m_StreamAcc.LoadAllData(pStream, FALSE, m_SrcWidth * m_SrcHeight * m_Bpp, TRUE);
-    m_pDecoder = NULL;
-    if (!m_StreamAcc.GetImageDecoder().IsEmpty()) {
-        if (m_StreamAcc.GetImageDecoder() == FX_BSTRC("DCTDecode")) {
-            const CPDF_Dictionary* pParam = m_StreamAcc.GetImageParam();
-            m_pDecoder = CPDF_ModuleMgr::Get()->GetJpegModule()->CreateDecoder(
-                             m_StreamAcc.GetData(), m_StreamAcc.GetSize(), m_SrcWidth, m_SrcHeight, m_Bpp,
-                             pParam ? pParam->GetInteger(FX_BSTRC("ColorTransform"), 1) : 1);
-        } else if (m_StreamAcc.GetImageDecoder() == FX_BSTRC("FlateDecode")) {
-            m_pDecoder = FPDFAPI_CreateFlateDecoder(
-                             m_StreamAcc.GetData(), m_StreamAcc.GetSize(), m_SrcWidth, m_SrcHeight, m_Bpp, 8,
-                             m_StreamAcc.GetImageParam());
-        } else {
-            return FALSE;
-        }
-        m_pDecoder->DownScale(m_DestWidth, m_DestHeight);
-    }
-    m_pBitmap = new CFX_DIBitmap;
-#if _FXM_PLATFORM_  == _FXM_PLATFORM_APPLE_
-    m_pBitmap->Create(m_ResultWidth, m_ResultHeight, FXDIB_Rgb32);
-#else
-    m_pBitmap->Create(m_ResultWidth, m_ResultHeight, FXDIB_Rgb);
-#endif
-    m_LineIndex = 0;
-    return TRUE;
-}
-FX_BOOL CPDF_QuickStretcher::Continue(IFX_Pause* pPause)
-{
-    uint8_t* result_buf = m_pBitmap->GetBuffer();
-    int src_width = m_pDecoder ? m_pDecoder->GetWidth() : m_SrcWidth;
-    int src_height = m_pDecoder ? m_pDecoder->GetHeight() : m_SrcHeight;
-    int src_pitch = src_width * m_Bpp;
-    while (m_LineIndex < m_ResultHeight) {
-        int dest_y, src_y;
-        if (m_bFlipY) {
-            dest_y = m_ResultHeight - m_LineIndex - 1;
-            src_y = (m_DestHeight - (dest_y + m_ClipTop) - 1) * src_height / m_DestHeight;
-        } else {
-            dest_y = m_LineIndex;
-            src_y = (dest_y + m_ClipTop) * src_height / m_DestHeight;
-        }
-        const uint8_t* src_scan;
-        if (m_pDecoder) {
-            src_scan = m_pDecoder->GetScanline(src_y);
-            if (src_scan == NULL) {
-                break;
-            }
-        } else {
-            src_scan = m_StreamAcc.GetData();
-            if (src_scan == NULL) {
-                break;
-            }
-            src_scan += src_y * src_pitch;
-        }
-        uint8_t* result_scan = result_buf + dest_y * m_pBitmap->GetPitch();
-        for (int x = 0; x < m_ResultWidth; x ++) {
-            int dest_x = m_ClipLeft + x;
-            int src_x = (m_bFlipX ? (m_DestWidth - dest_x - 1) : dest_x) * src_width / m_DestWidth;
-            const uint8_t* src_pixel = src_scan + src_x * m_Bpp;
-            if (m_pCS == NULL) {
-                *result_scan = src_pixel[2];
-                result_scan ++;
-                *result_scan = src_pixel[1];
-                result_scan ++;
-                *result_scan = src_pixel[0];
-                result_scan ++;
-#if _FXM_PLATFORM_  == _FXM_PLATFORM_APPLE_
-                result_scan ++;
-#endif
-            } else {
-                m_pCS->TranslateImageLine(result_scan, src_pixel, 1, 0, 0);
-#if _FXM_PLATFORM_  == _FXM_PLATFORM_APPLE_
-                result_scan += 4;
-#else
-                result_scan += 3;
-#endif
-            }
-        }
-        m_LineIndex ++;
-        if (pPause && pPause->NeedToPauseNow()) {
-            return TRUE;
-        }
-    }
-    return FALSE;
-}
-CFX_DIBitmap* CPDF_RenderStatus::LoadSMask(CPDF_Dictionary* pSMaskDict,
-        FX_RECT* pClipRect, const CFX_AffineMatrix* pMatrix)
-{
-    if (pSMaskDict == NULL) {
-        return NULL;
-    }
-    CFX_DIBitmap* pMask = NULL;
-    int width = pClipRect->right - pClipRect->left;
-    int height = pClipRect->bottom - pClipRect->top;
-    FX_BOOL bLuminosity = FALSE;
-    bLuminosity = pSMaskDict->GetConstString(FX_BSTRC("S")) != FX_BSTRC("Alpha");
-    CPDF_Stream* pGroup = pSMaskDict->GetStream(FX_BSTRC("G"));
-    if (pGroup == NULL) {
-        return NULL;
-    }
-    CPDF_Function* pFunc = NULL;
-    CPDF_Object* pFuncObj = pSMaskDict->GetElementValue(FX_BSTRC("TR"));
-    if (pFuncObj && (pFuncObj->GetType() == PDFOBJ_DICTIONARY || pFuncObj->GetType() == PDFOBJ_STREAM)) {
-        pFunc = CPDF_Function::Load(pFuncObj);
-    }
-    CFX_AffineMatrix matrix = *pMatrix;
-    matrix.TranslateI(-pClipRect->left, -pClipRect->top);
-    CPDF_Form form(m_pContext->m_pDocument, m_pContext->m_pPageResources, pGroup);
-    form.ParseContent(NULL, NULL, NULL, NULL);
-    CFX_FxgeDevice bitmap_device;
-#if _FXM_PLATFORM_  == _FXM_PLATFORM_APPLE_
-    if (!bitmap_device.Create(width, height, bLuminosity ? FXDIB_Rgb32 : FXDIB_8bppMask)) {
-        return NULL;
-    }
-#else
-    if (!bitmap_device.Create(width, height, bLuminosity ? FXDIB_Rgb : FXDIB_8bppMask)) {
-        return NULL;
-    }
-#endif
-    CFX_DIBitmap& bitmap = *bitmap_device.GetBitmap();
-    CPDF_Object* pCSObj = NULL;
-    CPDF_ColorSpace* pCS = NULL;
-    if (bLuminosity) {
-        CPDF_Array* pBC = pSMaskDict->GetArray(FX_BSTRC("BC"));
-        FX_ARGB back_color = 0xff000000;
-        if (pBC) {
-            CPDF_Dictionary* pDict = pGroup->GetDict();
-            if (pDict && pDict->GetDict(FX_BSTRC("Group")))
-                pCSObj = pDict->GetDict(FX_BSTRC("Group"))->GetElementValue(FX_BSTRC("CS"));
-            else
-                pCSObj = NULL;
-            pCS = m_pContext->m_pDocument->LoadColorSpace(pCSObj);
-            if (pCS) {
-                FX_FLOAT R, G, B;
-                FX_DWORD comps = 8;
-                if (pCS->CountComponents() > static_cast<int32_t>(comps)) {
-                    comps = (FX_DWORD)pCS->CountComponents();
-                }
-                CFX_FixedBufGrow<FX_FLOAT, 8> float_array(comps);
-                FX_FLOAT* pFloats = float_array;
-                FX_SAFE_DWORD num_floats = comps;
-                num_floats *= sizeof(FX_FLOAT);
-                if (!num_floats.IsValid()) {
-                    return NULL;
-                }
-                FXSYS_memset(pFloats, 0, num_floats.ValueOrDie());
-                int count = pBC->GetCount() > 8 ? 8 : pBC->GetCount();
-                for (int i = 0; i < count; i ++) {
-                    pFloats[i] = pBC->GetNumber(i);
-                }
-                pCS->GetRGB(pFloats, R, G, B);
-                back_color = 0xff000000 | ((int32_t)(R * 255) << 16) | ((int32_t)(G * 255) << 8) | (int32_t)(B * 255);
-                m_pContext->m_pDocument->GetPageData()->ReleaseColorSpace(pCSObj);
-            }
-        }
-        bitmap.Clear(back_color);
-    } else {
-        bitmap.Clear(0);
-    }
-    CPDF_Dictionary* pFormResource = NULL;
-    if (form.m_pFormDict) {
-        pFormResource = form.m_pFormDict->GetDict(FX_BSTRC("Resources"));
-    }
-    CPDF_RenderOptions options;
-    options.m_ColorMode = bLuminosity ? RENDER_COLOR_NORMAL : RENDER_COLOR_ALPHA;
-    CPDF_RenderStatus status;
-    status.Initialize(m_pContext, &bitmap_device, NULL, NULL, NULL, NULL,
-                      &options, 0, m_bDropObjects, pFormResource, TRUE, NULL, 0, pCS ? pCS->GetFamily() : 0, bLuminosity);
-    status.RenderObjectList(&form, &matrix);
-    pMask = new CFX_DIBitmap;
-    if (!pMask->Create(width, height, FXDIB_8bppMask)) {
-        delete pMask;
-        return NULL;
-    }
-    uint8_t* dest_buf = pMask->GetBuffer();
-    int dest_pitch = pMask->GetPitch();
-    uint8_t* src_buf = bitmap.GetBuffer();
-    int src_pitch = bitmap.GetPitch();
-    uint8_t* pTransfer = FX_Alloc(uint8_t, 256);
-    if (pFunc) {
-        CFX_FixedBufGrow<FX_FLOAT, 16> results(pFunc->CountOutputs());
-        for (int i = 0; i < 256; i ++) {
-            FX_FLOAT input = (FX_FLOAT)i / 255.0f;
-            int nresult;
-            pFunc->Call(&input, 1, results, nresult);
-            pTransfer[i] = FXSYS_round(results[0] * 255);
-        }
-    } else {
-        for (int i = 0; i < 256; i ++) {
-            pTransfer[i] = i;
-        }
-    }
-    if (bLuminosity) {
-        int Bpp = bitmap.GetBPP() / 8;
-        for (int row = 0; row < height; row ++) {
-            uint8_t* dest_pos = dest_buf + row * dest_pitch;
-            uint8_t* src_pos = src_buf + row * src_pitch;
-            for (int col = 0; col < width; col ++) {
-                *dest_pos ++ = pTransfer[FXRGB2GRAY(src_pos[2], src_pos[1], *src_pos)];
-                src_pos += Bpp;
-            }
-        }
-    } else if (pFunc) {
-        int size = dest_pitch * height;
-        for (int i = 0; i < size; i ++) {
-            dest_buf[i] = pTransfer[src_buf[i]];
-        }
-    } else {
-        FXSYS_memcpy(dest_buf, src_buf, dest_pitch * height);
-    }
-    delete pFunc;
-    FX_Free(pTransfer);
-    return pMask;
-}
+  CFX_DIBitmap& bitmap = *bitmap_device.GetBitmap();
+  CPDF_Object* pCSObj = NULL;
+  CPDF_ColorSpace* pCS = NULL;
+  if (bLuminosity) {
+    CPDF_Array* pBC = pSMaskDict->GetArray(FX_BSTRC("BC"));
+    FX_ARGB back_color = 0xff000000;
+    if (pBC) {
+      CPDF_Dictionary* pDict = pGroup->GetDict();
+      if (pDict && pDict->GetDict(FX_BSTRC("Group")))
+        pCSObj =
+            pDict->GetDict(FX_BSTRC("Group"))->GetElementValue(FX_BSTRC("CS"));
+      else
+        pCSObj = NULL;
+      pCS = m_pContext->m_pDocument->LoadColorSpace(pCSObj);
+      if (pCS) {
+        FX_FLOAT R, G, B;
+        FX_DWORD comps = 8;
+        if (pCS->CountComponents() > static_cast<int32_t>(comps)) {
+          comps = (FX_DWORD)pCS->CountComponents();
+        }
+        CFX_FixedBufGrow<FX_FLOAT, 8> float_array(comps);
+        FX_FLOAT* pFloats = float_array;
+        FX_SAFE_DWORD num_floats = comps;
+        num_floats *= sizeof(FX_FLOAT);
+        if (!num_floats.IsValid()) {
+          return NULL;
+        }
+        FXSYS_memset(pFloats, 0, num_floats.ValueOrDie());
+        int count = pBC->GetCount() > 8 ? 8 : pBC->GetCount();
+        for (int i = 0; i < count; i++) {
+          pFloats[i] = pBC->GetNumber(i);
+        }
+        pCS->GetRGB(pFloats, R, G, B);
+        back_color = 0xff000000 | ((int32_t)(R * 255) << 16) |
+                     ((int32_t)(G * 255) << 8) | (int32_t)(B * 255);
+        m_pContext->m_pDocument->GetPageData()->ReleaseColorSpace(pCSObj);
+      }
+    }
+    bitmap.Clear(back_color);
+  } else {
+    bitmap.Clear(0);
+  }
+  CPDF_Dictionary* pFormResource = NULL;
+  if (form.m_pFormDict) {
+    pFormResource = form.m_pFormDict->GetDict(FX_BSTRC("Resources"));
+  }
+  CPDF_RenderOptions options;
+  options.m_ColorMode = bLuminosity ? RENDER_COLOR_NORMAL : RENDER_COLOR_ALPHA;
+  CPDF_RenderStatus status;
+  status.Initialize(m_pContext, &bitmap_device, NULL, NULL, NULL, NULL,
+                    &options, 0, m_bDropObjects, pFormResource, TRUE, NULL, 0,
+                    pCS ? pCS->GetFamily() : 0, bLuminosity);
+  status.RenderObjectList(&form, &matrix);
+  pMask = new CFX_DIBitmap;
+  if (!pMask->Create(width, height, FXDIB_8bppMask)) {
+    delete pMask;
+    return NULL;
+  }
+  uint8_t* dest_buf = pMask->GetBuffer();
+  int dest_pitch = pMask->GetPitch();
+  uint8_t* src_buf = bitmap.GetBuffer();
+  int src_pitch = bitmap.GetPitch();
+  uint8_t* pTransfer = FX_Alloc(uint8_t, 256);
+  if (pFunc) {
+    CFX_FixedBufGrow<FX_FLOAT, 16> results(pFunc->CountOutputs());
+    for (int i = 0; i < 256; i++) {
+      FX_FLOAT input = (FX_FLOAT)i / 255.0f;
+      int nresult;
+      pFunc->Call(&input, 1, results, nresult);
+      pTransfer[i] = FXSYS_round(results[0] * 255);
+    }
+  } else {
+    for (int i = 0; i < 256; i++) {
+      pTransfer[i] = i;
+    }
+  }
+  if (bLuminosity) {
+    int Bpp = bitmap.GetBPP() / 8;
+    for (int row = 0; row < height; row++) {
+      uint8_t* dest_pos = dest_buf + row * dest_pitch;
+      uint8_t* src_pos = src_buf + row * src_pitch;
+      for (int col = 0; col < width; col++) {
+        *dest_pos++ = pTransfer[FXRGB2GRAY(src_pos[2], src_pos[1], *src_pos)];
+        src_pos += Bpp;
+      }
+    }
+  } else if (pFunc) {
+    int size = dest_pitch * height;
+    for (int i = 0; i < size; i++) {
+      dest_buf[i] = pTransfer[src_buf[i]];
+    }
+  } else {
+    FXSYS_memcpy(dest_buf, src_buf, dest_pitch * height);
+  }
+  delete pFunc;
+  FX_Free(pTransfer);
+  return pMask;
+}