1 // Copyright 2016 PDFium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4 
5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
6 
7 #ifndef CORE_FPDFAPI_RENDER_CPDF_IMAGELOADER_H_
8 #define CORE_FPDFAPI_RENDER_CPDF_IMAGELOADER_H_
9 
10 #include "core/fxcrt/retain_ptr.h"
11 #include "core/fxcrt/unowned_ptr.h"
12 
13 class CFX_DIBBase;
14 class CPDF_ImageObject;
15 class CPDF_PageRenderCache;
16 class CPDF_RenderStatus;
17 class CPDF_TransferFunc;
18 class PauseIndicatorIface;
19 
20 class CPDF_ImageLoader {
21  public:
22   CPDF_ImageLoader();
23   ~CPDF_ImageLoader();
24 
25   bool Start(CPDF_ImageObject* pImage,
26              const CPDF_RenderStatus* pRenderStatus,
27              bool bStdCS);
28   bool Continue(PauseIndicatorIface* pPause, CPDF_RenderStatus* pRenderStatus);
29 
30   RetainPtr<CFX_DIBBase> TranslateImage(
31       const RetainPtr<CPDF_TransferFunc>& pTransferFunc);
32 
GetBitmap()33   const RetainPtr<CFX_DIBBase>& GetBitmap() const { return m_pBitmap; }
GetMask()34   const RetainPtr<CFX_DIBBase>& GetMask() const { return m_pMask; }
MatteColor()35   uint32_t MatteColor() const { return m_MatteColor; }
36 
37  private:
38   void HandleFailure();
39 
40   uint32_t m_MatteColor = 0;
41   bool m_bCached = false;
42   RetainPtr<CFX_DIBBase> m_pBitmap;
43   RetainPtr<CFX_DIBBase> m_pMask;
44   UnownedPtr<CPDF_PageRenderCache> m_pCache;
45   UnownedPtr<CPDF_ImageObject> m_pImageObject;
46 };
47 
48 #endif  // CORE_FPDFAPI_RENDER_CPDF_IMAGELOADER_H_
49