Add CPDF_ImageObject::GetImage().

core/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 "core/fpdfapi/fpdf_render/render_int.h"
 
+#include <memory>
 #include <utility>
 #include <vector>
 
 #include "core/fpdfapi/fpdf_page/cpdf_shadingpattern.h"
 #include "core/fpdfapi/fpdf_page/cpdf_tilingpattern.h"
 #include "core/fpdfapi/fpdf_page/include/cpdf_form.h"
 #include "core/fpdfapi/fpdf_page/include/cpdf_image.h"
 #include "core/fpdfapi/fpdf_page/include/cpdf_imageobject.h"
 #include "core/fpdfapi/fpdf_page/include/cpdf_page.h"
 #include "core/fpdfapi/fpdf_page/pageint.h"
@@ skipping 416 matching lines @@
     m_pDIBSource = m_pClone.get();
   }
   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()->GetDirectObjectBy(
+        m_pImageObject->GetImage()->GetStream()->GetDict()->GetDirectObjectBy(
             "Filter");
     if (pFilters) {
       if (pFilters->IsName()) {
         CFX_ByteString bsDecodeType = pFilters->GetString();
         if (bsDecodeType == "DCTDecode" || bsDecodeType == "JPXDecode") {
           m_Flags |= FXRENDER_IMAGE_LOSSY;
         }
       } else if (CPDF_Array* pArray = pFilters->AsArray()) {
         for (size_t i = 0; i < pArray->GetCount(); i++) {
           CFX_ByteString bsDecodeType = pArray->GetStringAt(i);
           if (bsDecodeType == "DCTDecode" || bsDecodeType == "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()) {
+  } else if (m_pImageObject->GetImage()->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 = nullptr;
     CPDF_Page* pPage = nullptr;
     if (m_pRenderStatus->m_pContext->GetPageCache()) {
       pPage = m_pRenderStatus->m_pContext->GetPageCache()->GetPage();
       pDocument = pPage->m_pDocument;
     } else {
-      pDocument = m_pImageObject->m_pImage->GetDocument();
+      pDocument = m_pImageObject->GetImage()->GetDocument();
     }
     CPDF_Dictionary* pPageResources = pPage ? pPage->m_pPageResources : nullptr;
     CPDF_Object* pCSObj =
-        m_pImageObject->m_pImage->GetStream()->GetDict()->GetDirectObjectBy(
+        m_pImageObject->GetImage()->GetStream()->GetDict()->GetDirectObjectBy(
             "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_Matrix* pObj2Device,
                                   FX_BOOL bStdCS,
                                   int blendType) {
   m_pRenderStatus = pStatus;
   m_bStdCS = bStdCS;
   m_pImageObject = pObj->AsImage();
   m_BlendType = blendType;
   m_pObj2Device = pObj2Device;
-  CPDF_Dictionary* pOC = m_pImageObject->m_pImage->GetOC();
+  CPDF_Dictionary* pOC = m_pImageObject->GetImage()->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();
@@ skipping 526 matching lines @@
   } else if (pFunc) {
     int size = dest_pitch * height;
     for (int i = 0; i < size; i++) {
       dest_buf[i] = transfers[src_buf[i]];
     }
   } else {
     FXSYS_memcpy(dest_buf, src_buf, dest_pitch * height);
   }
   return pMask.release();
 }