1 // Copyright 2014 PDFium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com 6 7 #ifndef CORE_SRC_FXCODEC_CODEC_CODEC_INT_H_ 8 #define CORE_SRC_FXCODEC_CODEC_CODEC_INT_H_ 9 10 #include <limits.h> 11 #include <list> 12 13 #include "../../../include/fxcodec/fx_codec.h" 14 #include "../jbig2/JBig2_Context.h" 15 #include "../fx_libopenjpeg/libopenjpeg20/openjpeg.h" // For OPJ_SIZE_T. 16 17 class CCodec_BasicModule : public ICodec_BasicModule 18 { 19 public: 20 virtual FX_BOOL RunLengthEncode(const FX_BYTE* src_buf, FX_DWORD src_size, FX_LPBYTE& dest_buf, 21 FX_DWORD& dest_size); 22 virtual FX_BOOL A85Encode(const FX_BYTE* src_buf, FX_DWORD src_size, FX_LPBYTE& dest_buf, 23 FX_DWORD& dest_size); 24 virtual ICodec_ScanlineDecoder* CreateRunLengthDecoder(FX_LPCBYTE src_buf, FX_DWORD src_size, int width, int height, 25 int nComps, int bpc); 26 }; 27 struct CCodec_ImageDataCache { 28 int m_Width, m_Height; 29 int m_nCachedLines; 30 FX_BYTE m_Data; 31 }; 32 class CCodec_ScanlineDecoder : public ICodec_ScanlineDecoder 33 { 34 public: 35 36 CCodec_ScanlineDecoder(); 37 38 virtual ~CCodec_ScanlineDecoder(); 39 40 virtual FX_DWORD GetSrcOffset() 41 { 42 return -1; 43 } 44 45 virtual void DownScale(int dest_width, int dest_height); 46 47 FX_LPBYTE GetScanline(int line); 48 49 FX_BOOL SkipToScanline(int line, IFX_Pause* pPause); 50 51 int GetWidth() 52 { 53 return m_OutputWidth; 54 } 55 56 int GetHeight() 57 { 58 return m_OutputHeight; 59 } 60 61 int CountComps() 62 { 63 return m_nComps; 64 } 65 66 int GetBPC() 67 { 68 return m_bpc; 69 } 70 71 FX_BOOL IsColorTransformed() 72 { 73 return m_bColorTransformed; 74 } 75 76 void ClearImageData() 77 { 78 if (m_pDataCache) { 79 FX_Free(m_pDataCache); 80 } 81 m_pDataCache = NULL; 82 } 83 protected: 84 85 int m_OrigWidth; 86 87 int m_OrigHeight; 88 89 int m_DownScale; 90 91 int m_OutputWidth; 92 93 int m_OutputHeight; 94 95 int m_nComps; 96 97 int m_bpc; 98 99 int m_Pitch; 100 101 FX_BOOL m_bColorTransformed; 102 103 FX_LPBYTE ReadNextLine(); 104 105 virtual FX_BOOL v_Rewind() = 0; 106 107 virtual FX_LPBYTE v_GetNextLine() = 0; 108 109 virtual void v_DownScale(int dest_width, int dest_height) = 0; 110 111 int m_NextLine; 112 113 FX_LPBYTE m_pLastScanline; 114 115 CCodec_ImageDataCache* m_pDataCache; 116 }; 117 class CCodec_FaxModule : public ICodec_FaxModule 118 { 119 public: 120 virtual ICodec_ScanlineDecoder* CreateDecoder(FX_LPCBYTE src_buf, FX_DWORD src_size, int width, int height, 121 int K, FX_BOOL EndOfLine, FX_BOOL EncodedByteAlign, FX_BOOL BlackIs1, int Columns, int Rows); 122 FX_BOOL Encode(FX_LPCBYTE src_buf, int width, int height, int pitch, FX_LPBYTE& dest_buf, FX_DWORD& dest_size); 123 }; 124 class CCodec_FlateModule : public ICodec_FlateModule 125 { 126 public: 127 virtual ICodec_ScanlineDecoder* CreateDecoder(FX_LPCBYTE src_buf, FX_DWORD src_size, int width, int height, 128 int nComps, int bpc, int predictor, int Colors, int BitsPerComponent, int Columns); 129 virtual FX_DWORD FlateOrLZWDecode(FX_BOOL bLZW, const FX_BYTE* src_buf, FX_DWORD src_size, FX_BOOL bEarlyChange, 130 int predictor, int Colors, int BitsPerComponent, int Columns, 131 FX_DWORD estimated_size, FX_LPBYTE& dest_buf, FX_DWORD& dest_size); 132 virtual FX_BOOL Encode(const FX_BYTE* src_buf, FX_DWORD src_size, 133 int predictor, int Colors, int BitsPerComponent, int Columns, 134 FX_LPBYTE& dest_buf, FX_DWORD& dest_size); 135 virtual FX_BOOL Encode(FX_LPCBYTE src_buf, FX_DWORD src_size, FX_LPBYTE& dest_buf, FX_DWORD& dest_size); 136 }; 137 class CCodec_JpegModule : public ICodec_JpegModule 138 { 139 public: 140 CCodec_JpegModule() : m_pExtProvider(NULL) {} 141 void SetPovider(IFX_JpegProvider* pJP) 142 { 143 m_pExtProvider = pJP; 144 } 145 ICodec_ScanlineDecoder* CreateDecoder(FX_LPCBYTE src_buf, FX_DWORD src_size, 146 int width, int height, int nComps, FX_BOOL ColorTransform); 147 FX_BOOL LoadInfo(FX_LPCBYTE src_buf, FX_DWORD src_size, int& width, int& height, 148 int& num_components, int& bits_per_components, FX_BOOL& color_transform, 149 FX_LPBYTE* icc_buf_ptr, FX_DWORD* icc_length); 150 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); 151 virtual void* Start(); 152 virtual void Finish(void* pContext); 153 virtual void Input(void* pContext, FX_LPCBYTE src_buf, FX_DWORD src_size); 154 virtual int ReadHeader(void* pContext, int* width, int* height, int* nComps); 155 virtual FX_BOOL StartScanline(void* pContext, int down_scale); 156 virtual FX_BOOL ReadScanline(void* pContext, FX_LPBYTE dest_buf); 157 virtual FX_DWORD GetAvailInput(void* pContext, FX_LPBYTE* avail_buf_ptr); 158 protected: 159 IFX_JpegProvider* m_pExtProvider; 160 }; 161 class CCodec_IccModule : public ICodec_IccModule 162 { 163 public: 164 virtual IccCS GetProfileCS(FX_LPCBYTE pProfileData, unsigned int dwProfileSize); 165 virtual IccCS GetProfileCS(IFX_FileRead* pFile); 166 virtual FX_LPVOID CreateTransform(ICodec_IccModule::IccParam* pInputParam, 167 ICodec_IccModule::IccParam* pOutputParam, 168 ICodec_IccModule::IccParam* pProofParam = NULL, 169 FX_DWORD dwIntent = Icc_INTENT_PERCEPTUAL, 170 FX_DWORD dwFlag = Icc_FLAGS_DEFAULT, 171 FX_DWORD dwPrfIntent = Icc_INTENT_ABSOLUTE_COLORIMETRIC, 172 FX_DWORD dwPrfFlag = Icc_FLAGS_SOFTPROOFING 173 ); 174 virtual FX_LPVOID CreateTransform_sRGB(FX_LPCBYTE pProfileData, FX_DWORD dwProfileSize, FX_INT32& nComponents, FX_INT32 intent = 0, 175 FX_DWORD dwSrcFormat = Icc_FORMAT_DEFAULT); 176 virtual FX_LPVOID CreateTransform_CMYK(FX_LPCBYTE pSrcProfileData, FX_DWORD dwSrcProfileSize, FX_INT32& nSrcComponents, 177 FX_LPCBYTE pDstProfileData, FX_DWORD dwDstProfileSize, FX_INT32 intent = 0, 178 FX_DWORD dwSrcFormat = Icc_FORMAT_DEFAULT, 179 FX_DWORD dwDstFormat = Icc_FORMAT_DEFAULT 180 ); 181 virtual void DestroyTransform(FX_LPVOID pTransform); 182 virtual void Translate(FX_LPVOID pTransform, FX_FLOAT* pSrcValues, FX_FLOAT* pDestValues); 183 virtual void TranslateScanline(FX_LPVOID pTransform, FX_LPBYTE pDest, FX_LPCBYTE pSrc, int pixels); 184 virtual void SetComponents(FX_DWORD nComponents) {m_nComponents = nComponents;} 185 virtual ~CCodec_IccModule(); 186 protected: 187 CFX_MapByteStringToPtr m_MapTranform; 188 CFX_MapByteStringToPtr m_MapProfile; 189 FX_DWORD m_nComponents; 190 typedef enum { 191 Icc_CLASS_INPUT = 0, 192 Icc_CLASS_OUTPUT, 193 Icc_CLASS_PROOF, 194 Icc_CLASS_MAX 195 } Icc_CLASS; 196 FX_LPVOID CreateProfile(ICodec_IccModule::IccParam* pIccParam, Icc_CLASS ic, CFX_BinaryBuf* pTransformKey); 197 }; 198 class CCodec_JpxModule : public ICodec_JpxModule 199 { 200 public: 201 CCodec_JpxModule(); 202 void* CreateDecoder(FX_LPCBYTE src_buf, FX_DWORD src_size, FX_BOOL useColorSpace = FALSE); 203 void GetImageInfo(FX_LPVOID ctx, FX_DWORD& width, FX_DWORD& height, 204 FX_DWORD& codestream_nComps, FX_DWORD& output_nComps); 205 FX_BOOL Decode(void* ctx, FX_LPBYTE dest_data, int pitch, FX_BOOL bTranslateColor, FX_LPBYTE offsets); 206 void DestroyDecoder(void* ctx); 207 }; 208 class CPDF_Jbig2Interface : public CJBig2_Module 209 { 210 public: 211 virtual void *JBig2_Malloc(FX_DWORD dwSize) 212 { 213 return FX_Alloc(FX_BYTE, dwSize); 214 } 215 virtual void *JBig2_Malloc2(FX_DWORD num, FX_DWORD dwSize) 216 { 217 if (dwSize && num >= UINT_MAX / dwSize) { 218 return NULL; 219 } 220 return FX_Alloc(FX_BYTE, num * dwSize); 221 } 222 virtual void *JBig2_Malloc3(FX_DWORD num, FX_DWORD dwSize, FX_DWORD dwSize2) 223 { 224 if (dwSize2 && dwSize >= UINT_MAX / dwSize2) { 225 return NULL; 226 } 227 FX_DWORD size = dwSize2 * dwSize; 228 if (size && num >= UINT_MAX / size) { 229 return NULL; 230 } 231 return FX_Alloc(FX_BYTE, num * size); 232 } 233 virtual void *JBig2_Realloc(FX_LPVOID pMem, FX_DWORD dwSize) 234 { 235 return FX_Realloc(FX_BYTE, pMem, dwSize); 236 } 237 virtual void JBig2_Free(FX_LPVOID pMem) 238 { 239 FX_Free(pMem); 240 } 241 }; 242 class CCodec_Jbig2Context 243 { 244 public: 245 CCodec_Jbig2Context(); 246 ~CCodec_Jbig2Context() {}; 247 IFX_FileRead* m_file_ptr; 248 FX_DWORD m_width; 249 FX_DWORD m_height; 250 FX_LPBYTE m_src_buf; 251 FX_DWORD m_src_size; 252 FX_LPCBYTE m_global_data; 253 FX_DWORD m_global_size; 254 FX_LPBYTE m_dest_buf; 255 FX_DWORD m_dest_pitch; 256 FX_BOOL m_bFileReader; 257 IFX_Pause* m_pPause; 258 CJBig2_Context* m_pContext; 259 CJBig2_Image* m_dest_image; 260 }; 261 class CCodec_Jbig2Module : public ICodec_Jbig2Module 262 { 263 public: 264 CCodec_Jbig2Module() {}; 265 ~CCodec_Jbig2Module(); 266 FX_BOOL Decode(FX_DWORD width, FX_DWORD height, FX_LPCBYTE src_buf, FX_DWORD src_size, 267 FX_LPCBYTE global_data, FX_DWORD global_size, FX_LPBYTE dest_buf, FX_DWORD dest_pitch); 268 FX_BOOL Decode(IFX_FileRead* file_ptr, 269 FX_DWORD& width, FX_DWORD& height, FX_DWORD& pitch, FX_LPBYTE& dest_buf); 270 void* CreateJbig2Context(); 271 FXCODEC_STATUS StartDecode(void* pJbig2Context, FX_DWORD width, FX_DWORD height, FX_LPCBYTE src_buf, FX_DWORD src_size, 272 FX_LPCBYTE global_data, FX_DWORD global_size, FX_LPBYTE dest_buf, FX_DWORD dest_pitch, IFX_Pause* pPause); 273 274 FXCODEC_STATUS StartDecode(void* pJbig2Context, IFX_FileRead* file_ptr, 275 FX_DWORD& width, FX_DWORD& height, FX_DWORD& pitch, FX_LPBYTE& dest_buf, IFX_Pause* pPause); 276 FXCODEC_STATUS ContinueDecode(void* pJbig2Context, IFX_Pause* pPause); 277 void DestroyJbig2Context(void* pJbig2Context); 278 CPDF_Jbig2Interface m_Module; 279 std::list<CJBig2_CachePair> m_SymbolDictCache; 280 private: 281 }; 282 283 struct DecodeData { 284 public: 285 DecodeData(unsigned char* src_data, OPJ_SIZE_T src_size) : 286 src_data(src_data), src_size(src_size), offset(0) { 287 } 288 unsigned char* src_data; 289 OPJ_SIZE_T src_size; 290 OPJ_SIZE_T offset; 291 }; 292 293 /* Wrappers for C-style callbacks. */ 294 OPJ_SIZE_T opj_read_from_memory (void* p_buffer, OPJ_SIZE_T nb_bytes, void* p_user_data); 295 OPJ_SIZE_T opj_write_from_memory (void* p_buffer, OPJ_SIZE_T nb_bytes, void* p_user_data); 296 OPJ_OFF_T opj_skip_from_memory (OPJ_OFF_T nb_bytes, void* p_user_data); 297 OPJ_BOOL opj_seek_from_memory (OPJ_OFF_T nb_bytes, void* p_user_data); 298 299 #endif // CORE_SRC_FXCODEC_CODEC_CODEC_INT_H_ 300
