| // 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 _FX_CODEC_H_ |
| #define _FX_CODEC_H_ |
| #ifndef _FXCRT_EXTENSION_ |
| #include "../fxcrt/fx_ext.h" |
| #endif |
| #include "fx_codec_def.h" |
| #include "fx_codec_provider.h" |
| class CFX_DIBSource; |
| class ICodec_ScanlineDecoder; |
| class ICodec_BasicModule; |
| class ICodec_FaxModule; |
| class ICodec_JpegModule; |
| class ICodec_JpxModule; |
| class ICodec_Jbig2Module; |
| class ICodec_IccModule; |
| class ICodec_FlateModule; |
| class ICodec_Jbig2Encoder; |
| class ICodec_ScanlineDecoder; |
| class CCodec_ModuleMgr : public CFX_Object |
| { |
| public: |
| |
| static CCodec_ModuleMgr* Create(); |
| |
| void Destroy(); |
| |
| void InitJbig2Decoder(); |
| |
| void InitJpxDecoder(); |
| |
| |
| void InitIccDecoder(); |
| |
| ICodec_Jbig2Encoder* CreateJbig2Encoder(); |
| protected: |
| CCodec_ModuleMgr(); |
| ~CCodec_ModuleMgr(); |
| public: |
| ICodec_BasicModule* GetBasicModule() |
| { |
| return m_pBasicModule; |
| } |
| ICodec_FaxModule* GetFaxModule() |
| { |
| return m_pFaxModule; |
| } |
| ICodec_JpegModule* GetJpegModule() |
| { |
| return m_pJpegModule; |
| } |
| ICodec_JpxModule* GetJpxModule() |
| { |
| return m_pJpxModule; |
| } |
| ICodec_Jbig2Module* GetJbig2Module() |
| { |
| return m_pJbig2Module; |
| } |
| ICodec_IccModule* GetIccModule() |
| { |
| return m_pIccModule; |
| } |
| ICodec_FlateModule* GetFlateModule() |
| { |
| return m_pFlateModule; |
| } |
| protected: |
| ICodec_BasicModule* m_pBasicModule; |
| ICodec_FaxModule* m_pFaxModule; |
| ICodec_JpegModule* m_pJpegModule; |
| ICodec_JpxModule* m_pJpxModule; |
| ICodec_Jbig2Module* m_pJbig2Module; |
| ICodec_IccModule* m_pIccModule; |
| ICodec_FlateModule* m_pFlateModule; |
| |
| }; |
| class ICodec_BasicModule : public CFX_Object |
| { |
| public: |
| |
| virtual ~ICodec_BasicModule() {} |
| virtual FX_BOOL RunLengthEncode(const FX_BYTE* src_buf, FX_DWORD src_size, FX_LPBYTE& dest_buf, |
| FX_DWORD& dest_size) = 0; |
| virtual FX_BOOL A85Encode(const FX_BYTE* src_buf, FX_DWORD src_size, FX_LPBYTE& dest_buf, |
| FX_DWORD& dest_size) = 0; |
| virtual ICodec_ScanlineDecoder* CreateRunLengthDecoder(FX_LPCBYTE src_buf, FX_DWORD src_size, int width, int height, |
| int nComps, int bpc) = 0; |
| }; |
| class ICodec_ScanlineDecoder : public CFX_Object |
| { |
| public: |
| |
| virtual ~ICodec_ScanlineDecoder() {} |
| |
| virtual FX_DWORD GetSrcOffset() = 0; |
| |
| virtual void DownScale(int dest_width, int dest_height) = 0; |
| |
| virtual FX_LPBYTE 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 CFX_Object |
| { |
| public: |
| |
| virtual ~ICodec_FlateModule() {} |
| virtual ICodec_ScanlineDecoder* CreateDecoder(FX_LPCBYTE 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 FX_BYTE* src_buf, FX_DWORD src_size, FX_BOOL bEarlyChange, |
| int predictor, int Colors, int BitsPerComponent, int Columns, |
| FX_DWORD estimated_size, FX_LPBYTE& dest_buf, FX_DWORD& dest_size) = 0; |
| virtual FX_BOOL Encode(const FX_BYTE* src_buf, FX_DWORD src_size, |
| int predictor, int Colors, int BitsPerComponent, int Columns, |
| FX_LPBYTE& dest_buf, FX_DWORD& dest_size) = 0; |
| virtual FX_BOOL Encode(FX_LPCBYTE src_buf, FX_DWORD src_size, FX_LPBYTE& dest_buf, FX_DWORD& dest_size) = 0; |
| }; |
| class ICodec_FaxModule : public CFX_Object |
| { |
| public: |
| |
| virtual ~ICodec_FaxModule() {} |
| |
| virtual ICodec_ScanlineDecoder* CreateDecoder(FX_LPCBYTE 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(FX_LPCBYTE src_buf, int width, int height, int pitch, |
| FX_LPBYTE& dest_buf, FX_DWORD& dest_size) = 0; |
| }; |
| class ICodec_JpegModule : public CFX_Object |
| { |
| public: |
| |
| virtual ~ICodec_JpegModule() {} |
| |
| virtual void SetPovider(IFX_JpegProvider* pJP) = 0; |
| |
| virtual ICodec_ScanlineDecoder* CreateDecoder(FX_LPCBYTE src_buf, FX_DWORD src_size, |
| int width, int height, int nComps, FX_BOOL ColorTransform) = 0; |
| |
| virtual FX_BOOL LoadInfo(FX_LPCBYTE src_buf, FX_DWORD src_size, int& width, int& height, |
| int& num_components, int& bits_per_components, FX_BOOL& color_transform, |
| FX_LPBYTE* icc_buf_ptr = NULL, FX_DWORD* icc_length = NULL) = 0; |
| |
| virtual FX_BOOL Encode(const class CFX_DIBSource* pSource, FX_LPBYTE& dest_buf, FX_STRSIZE& dest_size, int quality = 75, |
| FX_LPCBYTE icc_buf = NULL, FX_DWORD icc_length = 0) = 0; |
| |
| virtual void* Start() = 0; |
| |
| virtual void Finish(void* pContext) = 0; |
| |
| virtual void Input(void* pContext, FX_LPCBYTE src_buf, FX_DWORD src_size) = 0; |
| |
| virtual int ReadHeader(void* pContext, int* width, int* height, int* nComps) = 0; |
| |
| |
| virtual int StartScanline(void* pContext, int down_scale) = 0; |
| |
| |
| virtual FX_BOOL ReadScanline(void* pContext, FX_LPBYTE dest_buf) = 0; |
| |
| |
| virtual FX_DWORD GetAvailInput(void* pContext, FX_LPBYTE* avail_buf_ptr = NULL) = 0; |
| }; |
| class ICodec_JpxModule : public CFX_Object |
| { |
| public: |
| |
| virtual ~ICodec_JpxModule() {} |
| |
| virtual FX_LPVOID CreateDecoder(FX_LPCBYTE src_buf, FX_DWORD src_size, FX_BOOL useColorSpace = FALSE) = 0; |
| |
| virtual void GetImageInfo(FX_LPVOID ctx, FX_DWORD& width, FX_DWORD& height, |
| FX_DWORD& codestream_nComps, FX_DWORD& output_nComps) = 0; |
| |
| virtual FX_BOOL Decode(FX_LPVOID ctx, FX_LPBYTE dest_data, int pitch, |
| FX_BOOL bTranslateColor, FX_LPBYTE offsets) = 0; |
| |
| virtual void DestroyDecoder(FX_LPVOID ctx) = 0; |
| }; |
| class ICodec_Jbig2Module : public CFX_Object |
| { |
| public: |
| |
| virtual ~ICodec_Jbig2Module() {} |
| |
| virtual FX_BOOL Decode(FX_DWORD width, FX_DWORD height, FX_LPCBYTE src_buf, FX_DWORD src_size, |
| FX_LPCBYTE global_data, FX_DWORD global_size, FX_LPBYTE dest_buf, FX_DWORD dest_pitch) = 0; |
| |
| virtual FX_BOOL Decode(IFX_FileRead* file_ptr, FX_DWORD& width, FX_DWORD& height, |
| FX_DWORD& pitch, FX_LPBYTE& dest_buf) = 0; |
| virtual void* CreateJbig2Context() = 0; |
| |
| virtual FXCODEC_STATUS StartDecode(void* pJbig2Context, FX_DWORD width, FX_DWORD height, FX_LPCBYTE src_buf, FX_DWORD src_size, |
| FX_LPCBYTE global_data, FX_DWORD global_size, FX_LPBYTE dest_buf, FX_DWORD dest_pitch, IFX_Pause* pPause) = 0; |
| |
| virtual FXCODEC_STATUS StartDecode(void* pJbig2Context, IFX_FileRead* file_ptr, |
| FX_DWORD& width, FX_DWORD& height, FX_DWORD& pitch, FX_LPBYTE& dest_buf, IFX_Pause* pPause) = 0; |
| virtual FXCODEC_STATUS ContinueDecode(void* pJbig2Content, IFX_Pause* pPause) = 0; |
| virtual void DestroyJbig2Context(void* pJbig2Content) = 0; |
| }; |
| class ICodec_Jbig2Encoder : public CFX_Object |
| { |
| public: |
| |
| virtual ~ICodec_Jbig2Encoder() {} |
| }; |
| class ICodec_IccModule : public CFX_Object |
| { |
| public: |
| typedef enum { |
| 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 |
| } IccCS; |
| typedef struct _IccParam { |
| FX_DWORD Version; |
| IccCS ColorSpace; |
| FX_DWORD dwProfileType; |
| FX_DWORD dwFormat; |
| FX_LPBYTE pProfileData; |
| FX_DWORD dwProfileSize; |
| double Gamma; |
| } IccParam; |
| |
| virtual ~ICodec_IccModule() {} |
| |
| virtual IccCS GetProfileCS(FX_LPCBYTE pProfileData, unsigned int dwProfileSize) = 0; |
| |
| virtual IccCS GetProfileCS(IFX_FileRead* pFile) = 0; |
| |
| virtual FX_LPVOID 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 FX_LPVOID CreateTransform_sRGB(FX_LPCBYTE pProfileData, FX_DWORD dwProfileSize, FX_INT32& nComponents, FX_INT32 intent = 0, |
| FX_DWORD dwSrcFormat = Icc_FORMAT_DEFAULT) = 0; |
| |
| virtual FX_LPVOID CreateTransform_CMYK(FX_LPCBYTE pSrcProfileData, FX_DWORD dwSrcProfileSize, FX_INT32& nSrcComponents, |
| FX_LPCBYTE pDstProfileData, FX_DWORD dwDstProfileSize, FX_INT32 intent = 0, |
| FX_DWORD dwSrcFormat = Icc_FORMAT_DEFAULT, |
| FX_DWORD dwDstFormat = Icc_FORMAT_DEFAULT |
| ) = 0; |
| |
| virtual void DestroyTransform(FX_LPVOID pTransform) = 0; |
| |
| virtual void Translate(FX_LPVOID pTransform, FX_FLOAT* pSrcValues, FX_FLOAT* pDestValues) = 0; |
| |
| virtual void TranslateScanline(FX_LPVOID pTransform, FX_LPBYTE pDest, FX_LPCBYTE pSrc, int pixels) = 0; |
| virtual void SetComponents(FX_DWORD nComponents) = 0; |
| }; |
| 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(FX_BYTE c, FX_BYTE m, FX_BYTE y, FX_BYTE k, FX_BYTE& R, FX_BYTE& G, FX_BYTE& B); |
| FX_BOOL MD5ComputeID(FX_LPCVOID buf, FX_DWORD dwSize, FX_BYTE ID[16]); |
| #endif |