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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
#include <limits.h>
class CCodec_BasicModule : public ICodec_BasicModule
{
public:
virtual FX_BOOL RunLengthEncode(const FX_BYTE* src_buf, FX_DWORD src_size, FX_LPBYTE& dest_buf,
FX_DWORD& dest_size);
virtual FX_BOOL A85Encode(const FX_BYTE* src_buf, FX_DWORD src_size, FX_LPBYTE& dest_buf,
FX_DWORD& dest_size);
virtual ICodec_ScanlineDecoder* CreateRunLengthDecoder(FX_LPCBYTE 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;
FX_BYTE 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);
FX_LPBYTE 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;
FX_LPBYTE ReadNextLine();
virtual FX_BOOL v_Rewind() = 0;
virtual FX_LPBYTE v_GetNextLine() = 0;
virtual void v_DownScale(int dest_width, int dest_height) = 0;
int m_NextLine;
FX_LPBYTE m_pLastScanline;
CCodec_ImageDataCache* m_pDataCache;
};
class CCodec_FaxModule : public ICodec_FaxModule
{
public:
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);
FX_BOOL Encode(FX_LPCBYTE src_buf, int width, int height, int pitch, FX_LPBYTE& dest_buf, FX_DWORD& dest_size);
};
class CCodec_FlateModule : public ICodec_FlateModule
{
public:
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);
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);
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);
virtual FX_BOOL Encode(FX_LPCBYTE src_buf, FX_DWORD src_size, FX_LPBYTE& 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(FX_LPCBYTE src_buf, FX_DWORD src_size,
int width, int height, int nComps, FX_BOOL ColorTransform);
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, FX_DWORD* icc_length);
FX_BOOL Encode(const CFX_DIBSource* pSource, FX_LPBYTE& dest_buf, FX_STRSIZE& dest_size, int quality, FX_LPCBYTE icc_buf, FX_DWORD icc_length);
virtual void* Start();
virtual void Finish(void* pContext);
virtual void Input(void* pContext, FX_LPCBYTE src_buf, FX_DWORD src_size);
virtual int ReadHeader(void* pContext, int* width, int* height, int* nComps);
virtual FX_BOOL StartScanline(void* pContext, int down_scale);
virtual FX_BOOL ReadScanline(void* pContext, FX_LPBYTE dest_buf);
virtual FX_DWORD GetAvailInput(void* pContext, FX_LPBYTE* avail_buf_ptr);
protected:
IFX_JpegProvider* m_pExtProvider;
};
class CCodec_IccModule : public ICodec_IccModule
{
public:
virtual IccCS GetProfileCS(FX_LPCBYTE pProfileData, unsigned int dwProfileSize);
virtual IccCS GetProfileCS(IFX_FileRead* pFile);
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
);
virtual FX_LPVOID CreateTransform_sRGB(FX_LPCBYTE pProfileData, unsigned int dwProfileSize, int nComponents, int intent = 0,
FX_DWORD dwSrcFormat = Icc_FORMAT_DEFAULT);
virtual FX_LPVOID CreateTransform_CMYK(FX_LPCBYTE pSrcProfileData, unsigned int dwSrcProfileSize, int nSrcComponents,
FX_LPCBYTE pDstProfileData, unsigned int dwDstProfileSize, int intent = 0,
FX_DWORD dwSrcFormat = Icc_FORMAT_DEFAULT,
FX_DWORD dwDstFormat = Icc_FORMAT_DEFAULT
);
virtual void DestroyTransform(FX_LPVOID pTransform);
virtual void Translate(FX_LPVOID pTransform, FX_FLOAT* pSrcValues, FX_FLOAT* pDestValues);
virtual void TranslateScanline(FX_LPVOID pTransform, FX_LPBYTE pDest, FX_LPCBYTE 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;
FX_LPVOID CreateProfile(ICodec_IccModule::IccParam* pIccParam, Icc_CLASS ic, CFX_BinaryBuf* pTransformKey);
};
class CCodec_JpxModule : public ICodec_JpxModule
{
public:
CCodec_JpxModule();
void* CreateDecoder(FX_LPCBYTE src_buf, FX_DWORD src_size, FX_BOOL useColorSpace = FALSE);
void GetImageInfo(FX_LPVOID ctx, FX_DWORD& width, FX_DWORD& height,
FX_DWORD& codestream_nComps, FX_DWORD& output_nComps);
FX_BOOL Decode(void* ctx, FX_LPBYTE dest_data, int pitch, FX_BOOL bTranslateColor, FX_LPBYTE offsets);
void DestroyDecoder(void* ctx);
};
#include "../jbig2/JBig2_Context.h"
class CPDF_Jbig2Interface : public CFX_Object, public CJBig2_Module
{
public:
virtual void *JBig2_Malloc(FX_DWORD dwSize)
{
return FX_Alloc(FX_BYTE, dwSize);
}
virtual void *JBig2_Malloc2(FX_DWORD num, FX_DWORD dwSize)
{
if (dwSize && num >= UINT_MAX / dwSize) {
return NULL;
}
return FX_Alloc(FX_BYTE, 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(FX_BYTE, num * size);
}
virtual void *JBig2_Realloc(FX_LPVOID pMem, FX_DWORD dwSize)
{
return FX_Realloc(FX_BYTE, pMem, dwSize);
}
virtual void JBig2_Free(FX_LPVOID pMem)
{
FX_Free(pMem);
}
};
class CCodec_Jbig2Context : public CFX_Object
{
public:
CCodec_Jbig2Context();
~CCodec_Jbig2Context() {};
IFX_FileRead* m_file_ptr;
FX_DWORD m_width;
FX_DWORD m_height;
FX_LPBYTE m_src_buf;
FX_DWORD m_src_size;
FX_LPCBYTE m_global_data;
FX_DWORD m_global_size;
FX_LPBYTE 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, FX_LPCBYTE src_buf, FX_DWORD src_size,
FX_LPCBYTE global_data, FX_DWORD global_size, FX_LPBYTE dest_buf, FX_DWORD dest_pitch);
FX_BOOL Decode(IFX_FileRead* file_ptr,
FX_DWORD& width, FX_DWORD& height, FX_DWORD& pitch, FX_LPBYTE& dest_buf);
void* CreateJbig2Context();
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);
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);
FXCODEC_STATUS ContinueDecode(void* pJbig2Context, IFX_Pause* pPause);
void DestroyJbig2Context(void* pJbig2Context);
CPDF_Jbig2Interface m_Module;
private:
};
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