| // Copyright 2017 PDFium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com |
| |
| #ifndef CORE_FPDFAPI_RENDER_CPDF_DIBSOURCE_H_ |
| #define CORE_FPDFAPI_RENDER_CPDF_DIBSOURCE_H_ |
| |
| #include <map> |
| #include <memory> |
| #include <vector> |
| |
| #include "core/fpdfapi/page/cpdf_clippath.h" |
| #include "core/fpdfapi/page/cpdf_countedobject.h" |
| #include "core/fpdfapi/page/cpdf_graphicstates.h" |
| #include "core/fpdfapi/parser/cpdf_stream_acc.h" |
| #include "core/fpdfapi/render/cpdf_imageloader.h" |
| #include "core/fpdfapi/render/cpdf_rendercontext.h" |
| #include "core/fpdfapi/render/cpdf_renderoptions.h" |
| #include "core/fxge/cfx_fxgedevice.h" |
| #include "core/fxge/cfx_renderdevice.h" |
| |
| class CCodec_Jbig2Context; |
| class CCodec_ScanlineDecoder; |
| class CPDF_Color; |
| class CPDF_Dictionary; |
| class CPDF_Document; |
| class CPDF_Stream; |
| |
| typedef struct { |
| FX_FLOAT m_DecodeMin; |
| FX_FLOAT m_DecodeStep; |
| int m_ColorKeyMin; |
| int m_ColorKeyMax; |
| } DIB_COMP_DATA; |
| |
| #define FPDF_HUGE_IMAGE_SIZE 60000000 |
| |
| class CPDF_DIBSource : public CFX_DIBSource { |
| public: |
| CPDF_DIBSource(); |
| ~CPDF_DIBSource() override; |
| |
| bool Load(CPDF_Document* pDoc, const CPDF_Stream* pStream); |
| |
| // CFX_DIBSource |
| bool SkipToScanline(int line, IFX_Pause* pPause) const override; |
| uint8_t* GetBuffer() const override; |
| const uint8_t* GetScanline(int line) const override; |
| void DownSampleScanline(int line, |
| uint8_t* dest_scan, |
| int dest_bpp, |
| int dest_width, |
| bool bFlipX, |
| int clip_left, |
| int clip_width) const override; |
| |
| uint32_t GetMatteColor() const { return m_MatteColor; } |
| |
| int StartLoadDIBSource(CPDF_Document* pDoc, |
| const CPDF_Stream* pStream, |
| bool bHasMask, |
| CPDF_Dictionary* pFormResources, |
| CPDF_Dictionary* pPageResources, |
| bool bStdCS = false, |
| uint32_t GroupFamily = 0, |
| bool bLoadMask = false); |
| int ContinueLoadDIBSource(IFX_Pause* pPause); |
| int StratLoadMask(); |
| int StartLoadMaskDIB(); |
| int ContinueLoadMaskDIB(IFX_Pause* pPause); |
| int ContinueToLoadMask(); |
| CPDF_DIBSource* DetachMask(); |
| |
| private: |
| bool LoadColorInfo(const CPDF_Dictionary* pFormResources, |
| const CPDF_Dictionary* pPageResources); |
| DIB_COMP_DATA* GetDecodeAndMaskArray(bool& bDefaultDecode, bool& bColorKey); |
| void LoadJpxBitmap(); |
| void LoadPalette(); |
| int CreateDecoder(); |
| void TranslateScanline24bpp(uint8_t* dest_scan, |
| const uint8_t* src_scan) const; |
| void ValidateDictParam(); |
| void DownSampleScanline1Bit(int orig_Bpp, |
| int dest_Bpp, |
| uint32_t src_width, |
| const uint8_t* pSrcLine, |
| uint8_t* dest_scan, |
| int dest_width, |
| bool bFlipX, |
| int clip_left, |
| int clip_width) const; |
| void DownSampleScanline8Bit(int orig_Bpp, |
| int dest_Bpp, |
| uint32_t src_width, |
| const uint8_t* pSrcLine, |
| uint8_t* dest_scan, |
| int dest_width, |
| bool bFlipX, |
| int clip_left, |
| int clip_width) const; |
| void DownSampleScanline32Bit(int orig_Bpp, |
| int dest_Bpp, |
| uint32_t src_width, |
| const uint8_t* pSrcLine, |
| uint8_t* dest_scan, |
| int dest_width, |
| bool bFlipX, |
| int clip_left, |
| int clip_width) const; |
| bool TransMask() const; |
| |
| CPDF_Document* m_pDocument; |
| const CPDF_Stream* m_pStream; |
| std::unique_ptr<CPDF_StreamAcc> m_pStreamAcc; |
| const CPDF_Dictionary* m_pDict; |
| CPDF_ColorSpace* m_pColorSpace; |
| uint32_t m_Family; |
| uint32_t m_bpc; |
| uint32_t m_bpc_orig; |
| uint32_t m_nComponents; |
| uint32_t m_GroupFamily; |
| uint32_t m_MatteColor; |
| bool m_bLoadMask; |
| bool m_bDefaultDecode; |
| bool m_bImageMask; |
| bool m_bDoBpcCheck; |
| bool m_bColorKey; |
| bool m_bHasMask; |
| bool m_bStdCS; |
| DIB_COMP_DATA* m_pCompData; |
| uint8_t* m_pLineBuf; |
| uint8_t* m_pMaskedLine; |
| std::unique_ptr<CFX_DIBitmap> m_pCachedBitmap; |
| std::unique_ptr<CCodec_ScanlineDecoder> m_pDecoder; |
| CPDF_DIBSource* m_pMask; |
| std::unique_ptr<CPDF_StreamAcc> m_pGlobalStream; |
| std::unique_ptr<CCodec_Jbig2Context> m_pJbig2Context; |
| CPDF_Stream* m_pMaskStream; |
| int m_Status; |
| }; |
| |
| #endif // CORE_FPDFAPI_RENDER_CPDF_DIBSOURCE_H_ |