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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 CORE_SRC_FXCODEC_CODEC_CODEC_INT_H_
#define CORE_SRC_FXCODEC_CODEC_CODEC_INT_H_
#include <limits.h>
#include <list>
#include "../../../include/fxcodec/fx_codec.h"
#include "../jbig2/JBig2_Context.h"
#include "../fx_libopenjpeg/libopenjpeg20/openjpeg.h" // For OPJ_SIZE_T.
class CCodec_BasicModule : public ICodec_BasicModule
{
public:
virtual FX_BOOL RunLengthEncode(const uint8_t* src_buf, FX_DWORD src_size, uint8_t*& dest_buf,
FX_DWORD& dest_size);
virtual FX_BOOL A85Encode(const uint8_t* src_buf, FX_DWORD src_size, uint8_t*& dest_buf,
FX_DWORD& dest_size);
virtual ICodec_ScanlineDecoder* CreateRunLengthDecoder(const uint8_t* src_buf, FX_DWORD src_size, int width, int height,
int nComps, int bpc);
};
struct CCodec_ImageDataCache {
int m_Width, m_Height;
int m_nCachedLines;
uint8_t m_Data;
};
class CCodec_ScanlineDecoder : public ICodec_ScanlineDecoder
{
public:
CCodec_ScanlineDecoder();
virtual ~CCodec_ScanlineDecoder();
virtual FX_DWORD GetSrcOffset()
{
return -1;
}
virtual void DownScale(int dest_width, int dest_height);
uint8_t* GetScanline(int line);
FX_BOOL SkipToScanline(int line, IFX_Pause* pPause);
int GetWidth()
{
return m_OutputWidth;
}
int GetHeight()
{
return m_OutputHeight;
}
int CountComps()
{
return m_nComps;
}
int GetBPC()
{
return m_bpc;
}
FX_BOOL IsColorTransformed()
{
return m_bColorTransformed;
}
void ClearImageData()
{
if (m_pDataCache) {
FX_Free(m_pDataCache);
}
m_pDataCache = NULL;
}
protected:
int m_OrigWidth;
int m_OrigHeight;
int m_DownScale;
int m_OutputWidth;
int m_OutputHeight;
int m_nComps;
int m_bpc;
int m_Pitch;
FX_BOOL m_bColorTransformed;
uint8_t* ReadNextLine();
virtual FX_BOOL v_Rewind() = 0;
virtual uint8_t* v_GetNextLine() = 0;
virtual void v_DownScale(int dest_width, int dest_height) = 0;
int m_NextLine;
uint8_t* m_pLastScanline;
CCodec_ImageDataCache* m_pDataCache;
};
class CCodec_FaxModule : public ICodec_FaxModule
{
public:
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);
FX_BOOL Encode(const uint8_t* src_buf, int width, int height, int pitch, uint8_t*& dest_buf, FX_DWORD& dest_size);
};
class CCodec_FlateModule : public ICodec_FlateModule
{
public:
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);
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);
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);
virtual FX_BOOL Encode(const uint8_t* src_buf, FX_DWORD src_size, uint8_t*& dest_buf, FX_DWORD& dest_size);
};
class CCodec_JpegModule : public ICodec_JpegModule
{
public:
CCodec_JpegModule() : m_pExtProvider(NULL) {}
void SetPovider(IFX_JpegProvider* pJP)
{
m_pExtProvider = pJP;
}
ICodec_ScanlineDecoder* CreateDecoder(const uint8_t* src_buf, FX_DWORD src_size,
int width, int height, int nComps, FX_BOOL ColorTransform);
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, FX_DWORD* icc_length);
FX_BOOL Encode(const CFX_DIBSource* pSource, uint8_t*& dest_buf, FX_STRSIZE& dest_size, int quality, const uint8_t* icc_buf, FX_DWORD icc_length);
virtual void* Start();
virtual void Finish(void* pContext);
virtual void Input(void* pContext, const uint8_t* src_buf, FX_DWORD src_size);
virtual int ReadHeader(void* pContext, int* width, int* height, int* nComps, CFX_DIBAttribute* pAttribute = NULL);
virtual FX_BOOL StartScanline(void* pContext, int down_scale);
virtual FX_BOOL ReadScanline(void* pContext, uint8_t* dest_buf);
virtual FX_DWORD GetAvailInput(void* pContext, uint8_t** avail_buf_ptr);
protected:
IFX_JpegProvider* m_pExtProvider;
};
#define PNG_ERROR_SIZE 256
class CCodec_PngModule : public ICodec_PngModule
{
public:
CCodec_PngModule()
{
FXSYS_memset(m_szLastError, '\0', PNG_ERROR_SIZE);
}
virtual void* Start(void* pModule);
virtual void Finish(void* pContext);
virtual FX_BOOL Input(void* pContext, const uint8_t* src_buf, FX_DWORD src_size, CFX_DIBAttribute* pAttribute);
protected:
FX_CHAR m_szLastError[PNG_ERROR_SIZE];
};
class CCodec_GifModule : public ICodec_GifModule
{
public:
CCodec_GifModule()
{
FXSYS_memset(m_szLastError, '\0', 256);
}
virtual void* Start(void* pModule);
virtual void Finish(void* pContext);
virtual FX_DWORD GetAvailInput(void* pContext, uint8_t** avail_buf_ptr);
virtual void Input(void* pContext, const uint8_t* src_buf, FX_DWORD src_size);
virtual int32_t ReadHeader(void* pContext, int* width, int* height,
int* pal_num, void** pal_pp, int* bg_index, CFX_DIBAttribute* pAttribute);
virtual int32_t LoadFrameInfo(void* pContext, int* frame_num);
virtual int32_t LoadFrame(void* pContext, int frame_num, CFX_DIBAttribute* pAttribute);
protected:
FX_CHAR m_szLastError[256];
};
class CCodec_BmpModule : public ICodec_BmpModule
{
public:
CCodec_BmpModule()
{
FXSYS_memset(m_szLastError, '\0', 256);
}
virtual void* Start(void* pModule);
virtual void Finish(void* pContext);
virtual FX_DWORD GetAvailInput(void* pContext, uint8_t** avail_buf_ptr);
virtual void Input(void* pContext, const uint8_t* src_buf, FX_DWORD src_size);
virtual int32_t ReadHeader(void* pContext, int32_t* width, int32_t* height, FX_BOOL* tb_flag, int32_t* components, int32_t* pal_num, FX_DWORD** pal_pp, CFX_DIBAttribute* pAttribute);
virtual int32_t LoadImage(void* pContext);
protected:
FX_CHAR m_szLastError[256];
};
class CCodec_IccModule : public ICodec_IccModule
{
public:
virtual IccCS GetProfileCS(const uint8_t* pProfileData, unsigned int dwProfileSize);
virtual IccCS GetProfileCS(IFX_FileRead* pFile);
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
);
virtual void* CreateTransform_sRGB(const uint8_t* pProfileData, FX_DWORD dwProfileSize, int32_t& nComponents, int32_t intent = 0,
FX_DWORD dwSrcFormat = Icc_FORMAT_DEFAULT);
virtual void* CreateTransform_CMYK(const uint8_t* pSrcProfileData, FX_DWORD dwSrcProfileSize, int32_t& nSrcComponents,
const uint8_t* pDstProfileData, FX_DWORD dwDstProfileSize, int32_t intent = 0,
FX_DWORD dwSrcFormat = Icc_FORMAT_DEFAULT,
FX_DWORD dwDstFormat = Icc_FORMAT_DEFAULT
);
virtual void DestroyTransform(void* pTransform);
virtual void Translate(void* pTransform, FX_FLOAT* pSrcValues, FX_FLOAT* pDestValues);
virtual void TranslateScanline(void* pTransform, uint8_t* pDest, const uint8_t* pSrc, int pixels);
virtual void SetComponents(FX_DWORD nComponents) {m_nComponents = nComponents;}
virtual ~CCodec_IccModule();
protected:
CFX_MapByteStringToPtr m_MapTranform;
CFX_MapByteStringToPtr m_MapProfile;
FX_DWORD m_nComponents;
typedef enum {
Icc_CLASS_INPUT = 0,
Icc_CLASS_OUTPUT,
Icc_CLASS_PROOF,
Icc_CLASS_MAX
} Icc_CLASS;
void* CreateProfile(ICodec_IccModule::IccParam* pIccParam, Icc_CLASS ic, CFX_BinaryBuf* pTransformKey);
};
class CCodec_JpxModule : public ICodec_JpxModule
{
public:
CCodec_JpxModule();
void* CreateDecoder(const uint8_t* src_buf, FX_DWORD src_size, FX_BOOL useColorSpace = FALSE);
void GetImageInfo(void* ctx, FX_DWORD& width, FX_DWORD& height,
FX_DWORD& codestream_nComps, FX_DWORD& output_nComps);
FX_BOOL Decode(void* ctx, uint8_t* dest_data, int pitch, FX_BOOL bTranslateColor, uint8_t* offsets);
void DestroyDecoder(void* ctx);
};
class CCodec_TiffModule : public ICodec_TiffModule
{
public:
virtual void* CreateDecoder(IFX_FileRead* file_ptr);
virtual void GetFrames(void* ctx, int32_t& frames);
virtual FX_BOOL LoadFrameInfo(void* ctx, int32_t frame, FX_DWORD& width, FX_DWORD& height, FX_DWORD& comps, FX_DWORD& bpc, CFX_DIBAttribute* pAttribute = NULL);
virtual FX_BOOL Decode(void* ctx, class CFX_DIBitmap* pDIBitmap);
virtual void DestroyDecoder(void* ctx);
};
class CPDF_Jbig2Interface : public CJBig2_Module
{
public:
virtual void *JBig2_Malloc(FX_DWORD dwSize)
{
return FX_Alloc(uint8_t, dwSize);
}
virtual void *JBig2_Malloc2(FX_DWORD num, FX_DWORD dwSize)
{
if (dwSize && num >= UINT_MAX / dwSize) {
return NULL;
}
return FX_Alloc(uint8_t, num * dwSize);
}
virtual void *JBig2_Malloc3(FX_DWORD num, FX_DWORD dwSize, FX_DWORD dwSize2)
{
if (dwSize2 && dwSize >= UINT_MAX / dwSize2) {
return NULL;
}
FX_DWORD size = dwSize2 * dwSize;
if (size && num >= UINT_MAX / size) {
return NULL;
}
return FX_Alloc(uint8_t, num * size);
}
virtual void *JBig2_Realloc(void* pMem, FX_DWORD dwSize)
{
return FX_Realloc(uint8_t, pMem, dwSize);
}
virtual void JBig2_Free(void* pMem)
{
FX_Free(pMem);
}
};
class CCodec_Jbig2Context
{
public:
CCodec_Jbig2Context();
~CCodec_Jbig2Context() {};
IFX_FileRead* m_file_ptr;
FX_DWORD m_width;
FX_DWORD m_height;
uint8_t* m_src_buf;
FX_DWORD m_src_size;
const uint8_t* m_global_data;
FX_DWORD m_global_size;
uint8_t* m_dest_buf;
FX_DWORD m_dest_pitch;
FX_BOOL m_bFileReader;
IFX_Pause* m_pPause;
CJBig2_Context* m_pContext;
CJBig2_Image* m_dest_image;
};
class CCodec_Jbig2Module : public ICodec_Jbig2Module
{
public:
CCodec_Jbig2Module() {};
~CCodec_Jbig2Module();
FX_BOOL Decode(FX_DWORD width, FX_DWORD height, const uint8_t* src_buf, FX_DWORD src_size,
const uint8_t* global_data, FX_DWORD global_size, uint8_t* dest_buf, FX_DWORD dest_pitch);
FX_BOOL Decode(IFX_FileRead* file_ptr,
FX_DWORD& width, FX_DWORD& height, FX_DWORD& pitch, uint8_t*& dest_buf);
void* CreateJbig2Context();
FXCODEC_STATUS StartDecode(void* pJbig2Context, FX_DWORD width, FX_DWORD height, const uint8_t* src_buf, FX_DWORD src_size,
const uint8_t* global_data, FX_DWORD global_size, uint8_t* dest_buf, FX_DWORD dest_pitch, IFX_Pause* pPause);
FXCODEC_STATUS StartDecode(void* pJbig2Context, IFX_FileRead* file_ptr,
FX_DWORD& width, FX_DWORD& height, FX_DWORD& pitch, uint8_t*& dest_buf, IFX_Pause* pPause);
FXCODEC_STATUS ContinueDecode(void* pJbig2Context, IFX_Pause* pPause);
void DestroyJbig2Context(void* pJbig2Context);
CPDF_Jbig2Interface m_Module;
std::list<CJBig2_CachePair> m_SymbolDictCache;
private:
};
class CFX_DIBAttributeExif : public IFX_DIBAttributeExif
{
public:
CFX_DIBAttributeExif();
~CFX_DIBAttributeExif();
virtual FX_BOOL GetInfo(FX_WORD tag, void* val);
FX_BOOL ParseExif(CFX_MapPtrTemplate<FX_DWORD, uint8_t*>* pHead, uint8_t* data, FX_DWORD len, CFX_MapPtrTemplate<FX_DWORD, uint8_t*>* pVal);
typedef FX_WORD (*_Read2Bytes)(uint8_t* data);
typedef FX_DWORD (*_Read4Bytes)(uint8_t* data);
uint8_t* ParseExifIFH(uint8_t* data, FX_DWORD len, _Read2Bytes* pReadWord, _Read4Bytes* pReadDword);
FX_BOOL ParseExifIFD(CFX_MapPtrTemplate<FX_DWORD, uint8_t*>* pMap, uint8_t* data, FX_DWORD len);
uint8_t* m_pExifData;
FX_DWORD m_dwExifDataLen;
void clear();
_Read2Bytes m_readWord;
_Read4Bytes m_readDword;
CFX_MapPtrTemplate<FX_DWORD, uint8_t*> m_TagHead;
CFX_MapPtrTemplate<FX_DWORD, uint8_t*> m_TagVal;
};
struct DecodeData {
public:
DecodeData(unsigned char* src_data, OPJ_SIZE_T src_size) :
src_data(src_data), src_size(src_size), offset(0) {
}
unsigned char* src_data;
OPJ_SIZE_T src_size;
OPJ_SIZE_T offset;
};
/* Wrappers for C-style callbacks. */
OPJ_SIZE_T opj_read_from_memory (void* p_buffer, OPJ_SIZE_T nb_bytes, void* p_user_data);
OPJ_SIZE_T opj_write_from_memory (void* p_buffer, OPJ_SIZE_T nb_bytes, void* p_user_data);
OPJ_OFF_T opj_skip_from_memory (OPJ_OFF_T nb_bytes, void* p_user_data);
OPJ_BOOL opj_seek_from_memory (OPJ_OFF_T nb_bytes, void* p_user_data);
#endif // CORE_SRC_FXCODEC_CODEC_CODEC_INT_H_
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