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| 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_FPDF_RENDER_CPDF_PAGERENDERCACHE_H_ | |
| 8 #define CORE_FPDFAPI_FPDF_RENDER_CPDF_PAGERENDERCACHE_H_ | |
| 9 | |
| 10 #include <map> | |
| 11 | |
| 12 #include "core/fxcrt/fx_system.h" | |
| 13 | |
| 14 class CPDF_Stream; | |
| 15 class CPDF_ImageCacheEntry; | |
| 16 class CPDF_Page; | |
| 17 class CPDF_RenderStatus; | |
| 18 class CFX_DIBitmap; | |
| 19 class CFX_DIBSource; | |
| 20 class IFX_Pause; | |
| 21 | |
| 22 class CPDF_PageRenderCache { | |
| 23 public: | |
| 24 explicit CPDF_PageRenderCache(CPDF_Page* pPage); | |
| 25 ~CPDF_PageRenderCache(); | |
| 26 | |
| 27 uint32_t EstimateSize(); | |
| 28 void CacheOptimization(int32_t dwLimitCacheSize); | |
| 29 uint32_t GetTimeCount() const { return m_nTimeCount; } | |
| 30 void SetTimeCount(uint32_t dwTimeCount) { m_nTimeCount = dwTimeCount; } | |
| 31 | |
| 32 void GetCachedBitmap(CPDF_Stream* pStream, | |
| 33 CFX_DIBSource*& pBitmap, | |
| 34 CFX_DIBSource*& pMask, | |
| 35 uint32_t& MatteColor, | |
| 36 FX_BOOL bStdCS = FALSE, | |
| 37 uint32_t GroupFamily = 0, | |
| 38 FX_BOOL bLoadMask = FALSE, | |
| 39 CPDF_RenderStatus* pRenderStatus = nullptr, | |
| 40 int32_t downsampleWidth = 0, | |
| 41 int32_t downsampleHeight = 0); | |
| 42 | |
| 43 void ResetBitmap(CPDF_Stream* pStream, const CFX_DIBitmap* pBitmap); | |
| 44 void ClearImageCacheEntry(CPDF_Stream* pStream); | |
| 45 CPDF_Page* GetPage() const { return m_pPage; } | |
| 46 CPDF_ImageCacheEntry* GetCurImageCacheEntry() const { | |
| 47 return m_pCurImageCacheEntry; | |
| 48 } | |
| 49 | |
| 50 FX_BOOL StartGetCachedBitmap(CPDF_Stream* pStream, | |
| 51 FX_BOOL bStdCS = FALSE, | |
| 52 uint32_t GroupFamily = 0, | |
| 53 FX_BOOL bLoadMask = FALSE, | |
| 54 CPDF_RenderStatus* pRenderStatus = nullptr, | |
| 55 int32_t downsampleWidth = 0, | |
| 56 int32_t downsampleHeight = 0); | |
| 57 | |
| 58 FX_BOOL Continue(IFX_Pause* pPause); | |
| 59 | |
| 60 protected: | |
| 61 friend class CPDF_Page; | |
| 62 | |
| 63 CPDF_Page* const m_pPage; | |
| 64 CPDF_ImageCacheEntry* m_pCurImageCacheEntry; | |
| 65 std::map<CPDF_Stream*, CPDF_ImageCacheEntry*> m_ImageCache; | |
| 66 uint32_t m_nTimeCount; | |
| 67 uint32_t m_nCacheSize; | |
| 68 FX_BOOL m_bCurFindCache; | |
| 69 }; | |
| 70 | |
| 71 #endif // CORE_FPDFAPI_FPDF_RENDER_CPDF_PAGERENDERCACHE_H_ | |
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