| // 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 |
| |
| #ifndef CORE_INCLUDE_FXCODEC_FX_CODEC_H_ |
| #define CORE_INCLUDE_FXCODEC_FX_CODEC_H_ |
| |
| #include <map> |
| #include <memory> |
| #include <vector> |
| |
| #include "core/fxcrt/include/fx_basic.h" |
| #include "core/fxcrt/include/fx_coordinates.h" // For FX_RECT. |
| #include "core/include/fxcodec/fx_codec_def.h" |
| |
| class CFX_DIBSource; |
| class CJPX_Decoder; |
| class CPDF_ColorSpace; |
| class CPDF_StreamAcc; |
| class ICodec_BasicModule; |
| class ICodec_FaxModule; |
| class ICodec_FlateModule; |
| class ICodec_IccModule; |
| class ICodec_Jbig2Encoder; |
| class ICodec_Jbig2Module; |
| class ICodec_JpegModule; |
| class ICodec_JpxModule; |
| class ICodec_ScanlineDecoder; |
| |
| #ifdef PDF_ENABLE_XFA |
| class ICodec_BmpModule; |
| class ICodec_GifModule; |
| class ICodec_PngModule; |
| class ICodec_ProgressiveDecoder; |
| class ICodec_TiffModule; |
| #endif // PDF_ENABLE_XFA |
| |
| #ifdef PDF_ENABLE_XFA |
| class CFX_DIBAttribute { |
| public: |
| CFX_DIBAttribute(); |
| ~CFX_DIBAttribute(); |
| |
| int32_t m_nXDPI; |
| int32_t m_nYDPI; |
| FX_FLOAT m_fAspectRatio; |
| uint16_t m_wDPIUnit; |
| CFX_ByteString m_strAuthor; |
| uint8_t m_strTime[20]; |
| int32_t m_nGifLeft; |
| int32_t m_nGifTop; |
| FX_DWORD* m_pGifLocalPalette; |
| FX_DWORD m_nGifLocalPalNum; |
| int32_t m_nBmpCompressType; |
| std::map<FX_DWORD, void*> m_Exif; |
| }; |
| #endif // PDF_ENABLE_XFA |
| |
| class CCodec_ModuleMgr { |
| public: |
| CCodec_ModuleMgr(); |
| |
| ICodec_BasicModule* GetBasicModule() const { return m_pBasicModule.get(); } |
| ICodec_FaxModule* GetFaxModule() const { return m_pFaxModule.get(); } |
| ICodec_JpegModule* GetJpegModule() const { return m_pJpegModule.get(); } |
| ICodec_JpxModule* GetJpxModule() const { return m_pJpxModule.get(); } |
| ICodec_Jbig2Module* GetJbig2Module() const { return m_pJbig2Module.get(); } |
| ICodec_IccModule* GetIccModule() const { return m_pIccModule.get(); } |
| ICodec_FlateModule* GetFlateModule() const { return m_pFlateModule.get(); } |
| |
| #ifdef PDF_ENABLE_XFA |
| ICodec_ProgressiveDecoder* CreateProgressiveDecoder(); |
| ICodec_PngModule* GetPngModule() const { return m_pPngModule.get(); } |
| ICodec_GifModule* GetGifModule() const { return m_pGifModule.get(); } |
| ICodec_BmpModule* GetBmpModule() const { return m_pBmpModule.get(); } |
| ICodec_TiffModule* GetTiffModule() const { return m_pTiffModule.get(); } |
| #endif // PDF_ENABLE_XFA |
| |
| protected: |
| std::unique_ptr<ICodec_BasicModule> m_pBasicModule; |
| std::unique_ptr<ICodec_FaxModule> m_pFaxModule; |
| std::unique_ptr<ICodec_JpegModule> m_pJpegModule; |
| std::unique_ptr<ICodec_JpxModule> m_pJpxModule; |
| std::unique_ptr<ICodec_Jbig2Module> m_pJbig2Module; |
| std::unique_ptr<ICodec_IccModule> m_pIccModule; |
| #ifdef PDF_ENABLE_XFA |
| std::unique_ptr<ICodec_PngModule> m_pPngModule; |
| std::unique_ptr<ICodec_GifModule> m_pGifModule; |
| std::unique_ptr<ICodec_BmpModule> m_pBmpModule; |
| std::unique_ptr<ICodec_TiffModule> m_pTiffModule; |
| #endif // PDF_ENABLE_XFA |
| std::unique_ptr<ICodec_FlateModule> m_pFlateModule; |
| }; |
| class ICodec_BasicModule { |
| public: |
| virtual ~ICodec_BasicModule() {} |
| virtual FX_BOOL RunLengthEncode(const uint8_t* src_buf, |
| FX_DWORD src_size, |
| uint8_t*& dest_buf, |
| FX_DWORD& dest_size) = 0; |
| virtual FX_BOOL A85Encode(const uint8_t* src_buf, |
| FX_DWORD src_size, |
| uint8_t*& dest_buf, |
| FX_DWORD& dest_size) = 0; |
| virtual ICodec_ScanlineDecoder* CreateRunLengthDecoder(const uint8_t* src_buf, |
| FX_DWORD src_size, |
| int width, |
| int height, |
| int nComps, |
| int bpc) = 0; |
| }; |
| |
| class ICodec_ScanlineDecoder { |
| public: |
| virtual ~ICodec_ScanlineDecoder() {} |
| |
| virtual FX_DWORD GetSrcOffset() = 0; |
| |
| virtual void DownScale(int dest_width, int dest_height) = 0; |
| |
| virtual const uint8_t* GetScanline(int line) = 0; |
| |
| virtual FX_BOOL SkipToScanline(int line, IFX_Pause* pPause) = 0; |
| |
| virtual int GetWidth() = 0; |
| |
| virtual int GetHeight() = 0; |
| |
| virtual int CountComps() = 0; |
| |
| virtual int GetBPC() = 0; |
| |
| virtual FX_BOOL IsColorTransformed() = 0; |
| |
| virtual void ClearImageData() = 0; |
| }; |
| |
| class ICodec_FlateModule { |
| public: |
| virtual ~ICodec_FlateModule() {} |
| virtual ICodec_ScanlineDecoder* CreateDecoder(const uint8_t* src_buf, |
| FX_DWORD src_size, |
| int width, |
| int height, |
| int nComps, |
| int bpc, |
| int predictor, |
| int Colors, |
| int BitsPerComponent, |
| int Columns) = 0; |
| virtual FX_DWORD FlateOrLZWDecode(FX_BOOL bLZW, |
| const uint8_t* src_buf, |
| FX_DWORD src_size, |
| FX_BOOL bEarlyChange, |
| int predictor, |
| int Colors, |
| int BitsPerComponent, |
| int Columns, |
| FX_DWORD estimated_size, |
| uint8_t*& dest_buf, |
| FX_DWORD& dest_size) = 0; |
| virtual FX_BOOL Encode(const uint8_t* src_buf, |
| FX_DWORD src_size, |
| int predictor, |
| int Colors, |
| int BitsPerComponent, |
| int Columns, |
| uint8_t*& dest_buf, |
| FX_DWORD& dest_size) = 0; |
| virtual FX_BOOL Encode(const uint8_t* src_buf, |
| FX_DWORD src_size, |
| uint8_t*& dest_buf, |
| FX_DWORD& dest_size) = 0; |
| }; |
| class ICodec_FaxModule { |
| public: |
| virtual ~ICodec_FaxModule() {} |
| |
| virtual ICodec_ScanlineDecoder* CreateDecoder(const uint8_t* src_buf, |
| FX_DWORD src_size, |
| int width, |
| int height, |
| int K, |
| FX_BOOL EndOfLine, |
| FX_BOOL EncodedByteAlign, |
| FX_BOOL BlackIs1, |
| int Columns, |
| int Rows) = 0; |
| |
| virtual FX_BOOL Encode(const uint8_t* src_buf, |
| int width, |
| int height, |
| int pitch, |
| uint8_t*& dest_buf, |
| FX_DWORD& dest_size) = 0; |
| }; |
| class ICodec_JpegModule { |
| public: |
| virtual ~ICodec_JpegModule() {} |
| |
| virtual ICodec_ScanlineDecoder* CreateDecoder(const uint8_t* src_buf, |
| FX_DWORD src_size, |
| int width, |
| int height, |
| int nComps, |
| FX_BOOL ColorTransform) = 0; |
| |
| virtual FX_BOOL LoadInfo(const uint8_t* src_buf, |
| FX_DWORD src_size, |
| int& width, |
| int& height, |
| int& num_components, |
| int& bits_per_components, |
| FX_BOOL& color_transform, |
| uint8_t** icc_buf_ptr = NULL, |
| FX_DWORD* icc_length = NULL) = 0; |
| |
| virtual FX_BOOL Encode(const class CFX_DIBSource* pSource, |
| uint8_t*& dest_buf, |
| FX_STRSIZE& dest_size, |
| int quality = 75, |
| const uint8_t* icc_buf = NULL, |
| FX_DWORD icc_length = 0) = 0; |
| |
| virtual void* Start() = 0; |
| |
| virtual void Finish(void* pContext) = 0; |
| |
| virtual void Input(void* pContext, |
| const uint8_t* src_buf, |
| FX_DWORD src_size) = 0; |
| |
| #ifdef PDF_ENABLE_XFA |
| virtual int ReadHeader(void* pContext, |
| int* width, |
| int* height, |
| int* nComps, |
| CFX_DIBAttribute* pAttribute) = 0; |
| #else // PDF_ENABLE_XFA |
| virtual int ReadHeader(void* pContext, |
| int* width, |
| int* height, |
| int* nComps) = 0; |
| #endif // PDF_ENABLE_XFA |
| |
| virtual int StartScanline(void* pContext, int down_scale) = 0; |
| |
| virtual FX_BOOL ReadScanline(void* pContext, uint8_t* dest_buf) = 0; |
| |
| virtual FX_DWORD GetAvailInput(void* pContext, |
| uint8_t** avail_buf_ptr = NULL) = 0; |
| }; |
| |
| class ICodec_JpxModule { |
| public: |
| virtual ~ICodec_JpxModule() {} |
| |
| virtual CJPX_Decoder* CreateDecoder(const uint8_t* src_buf, |
| FX_DWORD src_size, |
| CPDF_ColorSpace* cs) = 0; |
| |
| virtual void GetImageInfo(CJPX_Decoder* pDecoder, |
| FX_DWORD* width, |
| FX_DWORD* height, |
| FX_DWORD* components) = 0; |
| |
| virtual bool Decode(CJPX_Decoder* pDecoder, |
| uint8_t* dest_data, |
| int pitch, |
| const std::vector<uint8_t>& offsets) = 0; |
| |
| virtual void DestroyDecoder(CJPX_Decoder* pDecoder) = 0; |
| }; |
| #ifdef PDF_ENABLE_XFA |
| class ICodec_PngModule { |
| public: |
| virtual ~ICodec_PngModule() {} |
| |
| virtual void* Start(void* pModule) = 0; |
| |
| virtual void Finish(void* pContext) = 0; |
| |
| virtual FX_BOOL Input(void* pContext, |
| const uint8_t* src_buf, |
| FX_DWORD src_size, |
| CFX_DIBAttribute* pAttribute) = 0; |
| |
| FX_BOOL (*ReadHeaderCallback)(void* pModule, |
| int width, |
| int height, |
| int bpc, |
| int pass, |
| int* color_type, |
| double* gamma); |
| |
| FX_BOOL (*AskScanlineBufCallback)(void* pModule, int line, uint8_t*& src_buf); |
| |
| void (*FillScanlineBufCompletedCallback)(void* pModule, int pass, int line); |
| }; |
| class ICodec_GifModule { |
| public: |
| virtual ~ICodec_GifModule() {} |
| |
| virtual void* Start(void* pModule) = 0; |
| |
| virtual void Finish(void* pContext) = 0; |
| |
| virtual FX_DWORD GetAvailInput(void* pContext, |
| uint8_t** avail_buf_ptr = NULL) = 0; |
| |
| virtual void Input(void* pContext, |
| const uint8_t* src_buf, |
| FX_DWORD src_size) = 0; |
| |
| virtual int32_t ReadHeader(void* pContext, |
| int* width, |
| int* height, |
| int* pal_num, |
| void** pal_pp, |
| int* bg_index, |
| CFX_DIBAttribute* pAttribute) = 0; |
| |
| virtual int32_t LoadFrameInfo(void* pContext, int* frame_num) = 0; |
| |
| void (*RecordCurrentPositionCallback)(void* pModule, FX_DWORD& cur_pos); |
| |
| uint8_t* (*AskLocalPaletteBufCallback)(void* pModule, |
| int32_t frame_num, |
| int32_t pal_size); |
| |
| virtual int32_t LoadFrame(void* pContext, |
| int frame_num, |
| CFX_DIBAttribute* pAttribute) = 0; |
| |
| FX_BOOL (*InputRecordPositionBufCallback)(void* pModule, |
| FX_DWORD rcd_pos, |
| const FX_RECT& img_rc, |
| int32_t pal_num, |
| void* pal_ptr, |
| int32_t delay_time, |
| FX_BOOL user_input, |
| int32_t trans_index, |
| int32_t disposal_method, |
| FX_BOOL interlace); |
| |
| void (*ReadScanlineCallback)(void* pModule, |
| int32_t row_num, |
| uint8_t* row_buf); |
| }; |
| class ICodec_BmpModule { |
| public: |
| virtual ~ICodec_BmpModule() {} |
| |
| virtual void* Start(void* pModule) = 0; |
| |
| virtual void Finish(void* pContext) = 0; |
| |
| virtual FX_DWORD GetAvailInput(void* pContext, |
| uint8_t** avail_buf_ptr = NULL) = 0; |
| |
| virtual void Input(void* pContext, |
| const uint8_t* src_buf, |
| FX_DWORD src_size) = 0; |
| |
| virtual int32_t ReadHeader(void* pContext, |
| int32_t* width, |
| int32_t* height, |
| FX_BOOL* tb_flag, |
| int32_t* components, |
| int* pal_num, |
| FX_DWORD** pal_pp, |
| CFX_DIBAttribute* pAttribute) = 0; |
| |
| virtual int32_t LoadImage(void* pContext) = 0; |
| |
| FX_BOOL (*InputImagePositionBufCallback)(void* pModule, FX_DWORD rcd_pos); |
| |
| void (*ReadScanlineCallback)(void* pModule, |
| int32_t row_num, |
| uint8_t* row_buf); |
| }; |
| class ICodec_TiffModule { |
| public: |
| virtual ~ICodec_TiffModule() {} |
| |
| virtual void* CreateDecoder(IFX_FileRead* file_ptr) = 0; |
| |
| virtual void GetFrames(void* ctx, int32_t& frames) = 0; |
| |
| virtual FX_BOOL LoadFrameInfo(void* ctx, |
| int32_t frame, |
| FX_DWORD& width, |
| FX_DWORD& height, |
| FX_DWORD& comps, |
| FX_DWORD& bpc, |
| CFX_DIBAttribute* pAttribute) = 0; |
| |
| virtual FX_BOOL Decode(void* ctx, class CFX_DIBitmap* pDIBitmap) = 0; |
| |
| virtual void DestroyDecoder(void* ctx) = 0; |
| }; |
| #endif |
| |
| class ICodec_Jbig2Module { |
| public: |
| virtual ~ICodec_Jbig2Module() {} |
| |
| virtual void* CreateJbig2Context() = 0; |
| |
| virtual FXCODEC_STATUS StartDecode(void* pJbig2Context, |
| CFX_PrivateData* pPrivateData, |
| FX_DWORD width, |
| FX_DWORD height, |
| CPDF_StreamAcc* src_stream, |
| CPDF_StreamAcc* global_stream, |
| uint8_t* dest_buf, |
| FX_DWORD dest_pitch, |
| IFX_Pause* pPause) = 0; |
| |
| virtual FXCODEC_STATUS ContinueDecode(void* pJbig2Content, |
| IFX_Pause* pPause) = 0; |
| virtual void DestroyJbig2Context(void* pJbig2Content) = 0; |
| }; |
| #ifdef PDF_ENABLE_XFA |
| class ICodec_ProgressiveDecoder { |
| public: |
| virtual ~ICodec_ProgressiveDecoder() {} |
| |
| virtual FXCODEC_STATUS LoadImageInfo(IFX_FileRead* pFile, |
| FXCODEC_IMAGE_TYPE imageType, |
| CFX_DIBAttribute* pAttribute) = 0; |
| |
| virtual FXCODEC_IMAGE_TYPE GetType() const = 0; |
| virtual int32_t GetWidth() const = 0; |
| virtual int32_t GetHeight() const = 0; |
| virtual int32_t GetNumComponents() const = 0; |
| virtual int32_t GetBPC() const = 0; |
| |
| virtual void SetClipBox(FX_RECT* clip) = 0; |
| |
| virtual FXCODEC_STATUS GetFrames(int32_t& frames, |
| IFX_Pause* pPause = NULL) = 0; |
| |
| virtual FXCODEC_STATUS StartDecode(class CFX_DIBitmap* pDIBitmap, |
| int32_t start_x, |
| int32_t start_y, |
| int32_t size_x, |
| int32_t size_y, |
| int32_t frames = 0, |
| FX_BOOL bInterpol = TRUE) = 0; |
| |
| virtual FXCODEC_STATUS ContinueDecode(IFX_Pause* pPause = NULL) = 0; |
| }; |
| #endif // PDF_ENABLE_XFA |
| class ICodec_Jbig2Encoder { |
| public: |
| virtual ~ICodec_Jbig2Encoder() {} |
| }; |
| |
| class ICodec_IccModule { |
| public: |
| enum IccCS { |
| IccCS_Unknown = 0, |
| IccCS_XYZ, |
| IccCS_Lab, |
| IccCS_Luv, |
| IccCS_YCbCr, |
| IccCS_Yxy, |
| IccCS_Hsv, |
| IccCS_Hls, |
| IccCS_Gray, |
| IccCS_Rgb, |
| IccCS_Cmyk, |
| IccCS_Cmy |
| }; |
| |
| struct IccParam { |
| FX_DWORD Version; |
| IccCS ColorSpace; |
| FX_DWORD dwProfileType; |
| FX_DWORD dwFormat; |
| uint8_t* pProfileData; |
| FX_DWORD dwProfileSize; |
| double Gamma; |
| }; |
| |
| virtual ~ICodec_IccModule() {} |
| |
| virtual IccCS GetProfileCS(const uint8_t* pProfileData, |
| unsigned int dwProfileSize) = 0; |
| |
| virtual IccCS GetProfileCS(IFX_FileRead* pFile) = 0; |
| |
| virtual void* CreateTransform( |
| ICodec_IccModule::IccParam* pInputParam, |
| ICodec_IccModule::IccParam* pOutputParam, |
| ICodec_IccModule::IccParam* pProofParam = NULL, |
| FX_DWORD dwIntent = Icc_INTENT_PERCEPTUAL, |
| FX_DWORD dwFlag = Icc_FLAGS_DEFAULT, |
| FX_DWORD dwPrfIntent = Icc_INTENT_ABSOLUTE_COLORIMETRIC, |
| FX_DWORD dwPrfFlag = Icc_FLAGS_SOFTPROOFING) = 0; |
| |
| virtual void* CreateTransform_sRGB( |
| const uint8_t* pProfileData, |
| FX_DWORD dwProfileSize, |
| FX_DWORD& nComponents, |
| int32_t intent = 0, |
| FX_DWORD dwSrcFormat = Icc_FORMAT_DEFAULT) = 0; |
| |
| virtual void* CreateTransform_CMYK( |
| const uint8_t* pSrcProfileData, |
| FX_DWORD dwSrcProfileSize, |
| FX_DWORD& nSrcComponents, |
| const uint8_t* pDstProfileData, |
| FX_DWORD dwDstProfileSize, |
| int32_t intent = 0, |
| FX_DWORD dwSrcFormat = Icc_FORMAT_DEFAULT, |
| FX_DWORD dwDstFormat = Icc_FORMAT_DEFAULT) = 0; |
| |
| virtual void DestroyTransform(void* pTransform) = 0; |
| |
| virtual void Translate(void* pTransform, |
| FX_FLOAT* pSrcValues, |
| FX_FLOAT* pDestValues) = 0; |
| |
| virtual void TranslateScanline(void* pTransform, |
| uint8_t* pDest, |
| const uint8_t* pSrc, |
| int pixels) = 0; |
| virtual void SetComponents(FX_DWORD nComponents) = 0; |
| }; |
| |
| void ReverseRGB(uint8_t* pDestBuf, const uint8_t* pSrcBuf, int pixels); |
| void sRGB_to_AdobeCMYK(FX_FLOAT R, |
| FX_FLOAT G, |
| FX_FLOAT B, |
| FX_FLOAT& c, |
| FX_FLOAT& m, |
| FX_FLOAT& y, |
| FX_FLOAT& k); |
| void AdobeCMYK_to_sRGB(FX_FLOAT c, |
| FX_FLOAT m, |
| FX_FLOAT y, |
| FX_FLOAT k, |
| FX_FLOAT& R, |
| FX_FLOAT& G, |
| FX_FLOAT& B); |
| void AdobeCMYK_to_sRGB1(uint8_t c, |
| uint8_t m, |
| uint8_t y, |
| uint8_t k, |
| uint8_t& R, |
| uint8_t& G, |
| uint8_t& B); |
| FX_BOOL MD5ComputeID(const void* buf, FX_DWORD dwSize, uint8_t ID[16]); |
| void FaxG4Decode(const uint8_t* src_buf, |
| FX_DWORD src_size, |
| int* pbitpos, |
| uint8_t* dest_buf, |
| int width, |
| int height, |
| int pitch); |
| |
| #endif // CORE_INCLUDE_FXCODEC_FX_CODEC_H_ |