00001 00032 #ifndef LL_LLIMAGEJPEG_H 00033 #define LL_LLIMAGEJPEG_H 00034 00035 #include <setjmp.h> 00036 00037 #include "llimage.h" 00038 00039 extern "C" { 00040 #ifdef LL_STANDALONE 00041 # include <jpeglib.h> 00042 # include <jerror.h> 00043 #else 00044 # include "jpeglib/jpeglib.h" 00045 # include "jpeglib/jerror.h" 00046 #endif 00047 } 00048 00049 class LLImageJPEG : public LLImageFormatted 00050 { 00051 protected: 00052 virtual ~LLImageJPEG(); 00053 00054 public: 00055 LLImageJPEG(); 00056 00057 /*virtual*/ BOOL updateData(); 00058 /*virtual*/ BOOL decode(LLImageRaw* raw_image, F32 time=0.0); 00059 /*virtual*/ BOOL encode(const LLImageRaw* raw_image, F32 time=0.0); 00060 00061 void setEncodeQuality( S32 q ) { mEncodeQuality = q; } // on a scale from 1 to 100 00062 S32 getEncodeQuality() { return mEncodeQuality; } 00063 00064 // Callbacks registered with jpeglib 00065 static void encodeInitDestination ( j_compress_ptr cinfo ); 00066 static boolean encodeEmptyOutputBuffer(j_compress_ptr cinfo); 00067 static void encodeTermDestination(j_compress_ptr cinfo); 00068 00069 static void decodeInitSource(j_decompress_ptr cinfo); 00070 static boolean decodeFillInputBuffer(j_decompress_ptr cinfo); 00071 static void decodeSkipInputData(j_decompress_ptr cinfo, long num_bytes); 00072 static void decodeTermSource(j_decompress_ptr cinfo); 00073 00074 00075 static void errorExit(j_common_ptr cinfo); 00076 static void errorEmitMessage(j_common_ptr cinfo, int msg_level); 00077 static void errorOutputMessage(j_common_ptr cinfo); 00078 00079 static BOOL decompress(LLImageJPEG* imagep); 00080 00081 protected: 00082 U8* mOutputBuffer; // temp buffer used during encoding 00083 S32 mOutputBufferSize; // bytes in mOuputBuffer 00084 00085 S32 mEncodeQuality; // on a scale from 1 to 100 00086 00087 jmp_buf mSetjmpBuffer; // To allow the library to abort. 00088 }; 00089 00090 #endif // LL_LLIMAGEJPEG_H
1.4.7