diff options
Diffstat (limited to 'indra/llimage/llimage.h')
| -rw-r--r-- | indra/llimage/llimage.h | 31 |
1 files changed, 25 insertions, 6 deletions
diff --git a/indra/llimage/llimage.h b/indra/llimage/llimage.h index 825b9aab1a..4469c9e860 100644 --- a/indra/llimage/llimage.h +++ b/indra/llimage/llimage.h @@ -29,14 +29,26 @@ #include "lluuid.h" #include "llstring.h" -//#include "llmemory.h" #include "llthread.h" #include "llmemtype.h" const S32 MIN_IMAGE_MIP = 2; // 4x4, only used for expand/contract power of 2 const S32 MAX_IMAGE_MIP = 11; // 2048x2048 + +// *TODO : Use MAX_IMAGE_MIP as max discard level and modify j2c management so that the number +// of levels is read from the header's file, not inferred from its size. const S32 MAX_DISCARD_LEVEL = 5; +// JPEG2000 size constraints +// Those are declared here as they are germane to other image constraints used in the viewer +// and declared right here. Some come from the JPEG2000 spec, some conventions specific to SL. +const S32 MAX_DECOMPOSITION_LEVELS = 32; // Number of decomposition levels cannot exceed 32 according to jpeg2000 spec +const S32 MIN_DECOMPOSITION_LEVELS = 5; // the SL viewer will *crash* trying to decode images with fewer than 5 decomposition levels (unless image is small that is) +const S32 MAX_PRECINCT_SIZE = 2048; // No reason to be bigger than MAX_IMAGE_SIZE +const S32 MIN_PRECINCT_SIZE = 4; // Can't be smaller than MIN_BLOCK_SIZE +const S32 MAX_BLOCK_SIZE = 64; // Max total block size is 4096, hence 64x64 when using square blocks +const S32 MIN_BLOCK_SIZE = 4; // Min block dim is 4 according to jpeg2000 spec + const S32 MIN_IMAGE_SIZE = (1<<MIN_IMAGE_MIP); // 4, only used for expand/contract power of 2 const S32 MAX_IMAGE_SIZE = (1<<MAX_IMAGE_MIP); // 2048 const S32 MIN_IMAGE_AREA = MIN_IMAGE_SIZE * MIN_IMAGE_SIZE; @@ -56,6 +68,7 @@ const S32 MAX_IMG_PACKET_SIZE = 1000; class LLImageFormatted; class LLImageRaw; class LLColor4U; +class LLPrivateMemoryPool; typedef enum e_image_codec { @@ -127,7 +140,7 @@ public: protected: // special accessor to allow direct setting of mData and mDataSize by LLImageFormatted - void setDataAndSize(U8 *data, S32 size) { mData = data; mDataSize = size; } + void setDataAndSize(U8 *data, S32 size) { mData = data; mDataSize = size; } public: static void generateMip(const U8 *indata, U8* mipdata, int width, int height, S32 nchannels); @@ -138,6 +151,10 @@ public: static EImageCodec getCodecFromExtension(const std::string& exten); + static void createPrivatePool() ; + static void destroyPrivatePool() ; + static LLPrivateMemoryPool* getPrivatePool() {return sPrivatePoolp;} + private: U8 *mData; S32 mDataSize; @@ -149,6 +166,8 @@ private: bool mBadBufferAllocation ; bool mAllowOverSize ; + + static LLPrivateMemoryPool* sPrivatePoolp ; public: LLMemType::DeclareMemType& mMemType; // debug }; @@ -172,7 +191,7 @@ public: BOOL resize(U16 width, U16 height, S8 components); - U8 * getSubImage(U32 x_pos, U32 y_pos, U32 width, U32 height) const; + //U8 * getSubImage(U32 x_pos, U32 y_pos, U32 width, U32 height) const; BOOL setSubImage(U32 x_pos, U32 y_pos, U32 width, U32 height, const U8 *data, U32 stride = 0, BOOL reverse_y = FALSE); @@ -184,7 +203,7 @@ public: void contractToPowerOfTwo(S32 max_dim = MAX_IMAGE_SIZE, BOOL scale_image = TRUE); void biasedScaleToPowerOfTwo(S32 max_dim = MAX_IMAGE_SIZE); BOOL scale( S32 new_width, S32 new_height, BOOL scale_image = TRUE ); - BOOL scaleDownWithoutBlending( S32 new_width, S32 new_height) ; + //BOOL scaleDownWithoutBlending( S32 new_width, S32 new_height) ; // Fill the buffer with a constant color void fill( const LLColor4U& color ); @@ -266,13 +285,13 @@ public: // subclasses must return a prefered file extension (lowercase without a leading dot) virtual std::string getExtension() = 0; // calcHeaderSize() returns the maximum size of header; - // 0 indicates we don't know have a header and have to lead the entire file + // 0 indicates we don't have a header and have to read the entire file virtual S32 calcHeaderSize() { return 0; }; // calcDataSize() returns how many bytes to read to load discard_level (including header) virtual S32 calcDataSize(S32 discard_level); // calcDiscardLevelBytes() returns the smallest valid discard level based on the number of input bytes virtual S32 calcDiscardLevelBytes(S32 bytes); - // getRawDiscardLevel()by default returns mDiscardLevel, but may be overridden (LLImageJ2C) + // getRawDiscardLevel() by default returns mDiscardLevel, but may be overridden (LLImageJ2C) virtual S8 getRawDiscardLevel() { return mDiscardLevel; } BOOL load(const std::string& filename); |