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// 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
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