diff options
Diffstat (limited to 'indra/llimage/llpngwrapper.h')
| -rw-r--r-- | indra/llimage/llpngwrapper.h | 194 |
1 files changed, 97 insertions, 97 deletions
diff --git a/indra/llimage/llpngwrapper.h b/indra/llimage/llpngwrapper.h index 7356a76353..3ada8ac7c2 100644 --- a/indra/llimage/llpngwrapper.h +++ b/indra/llimage/llpngwrapper.h @@ -1,97 +1,97 @@ -/*
- * @file llpngwrapper.h
- *
- * $LicenseInfo:firstyear=2007&license=viewerlgpl$
- * Second Life Viewer Source Code
- * Copyright (C) 2010, Linden Research, Inc.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation;
- * version 2.1 of the License only.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- *
- * Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
- * $/LicenseInfo$
- */
-
-#ifndef LL_LLPNGWRAPPER_H
-#define LL_LLPNGWRAPPER_H
-
-#include "png.h"
-#include "llimage.h"
-
-class LLPngWrapper
-{
-public:
- LLPngWrapper();
- virtual ~LLPngWrapper();
-
-public:
- struct ImageInfo
- {
- U16 mWidth;
- U16 mHeight;
- S8 mComponents;
- };
-
- bool isValidPng(U8* src);
- bool readPng(U8* src, S32 dataSize, LLImageRaw* rawImage, ImageInfo *infop = NULL);
- bool writePng(const LLImageRaw* rawImage, U8* dst, size_t destSize);
- U32 getFinalSize();
- const std::string& getErrorMessage();
-
-protected:
- void normalizeImage();
- void updateMetaData();
-
-private:
-
- // Structure for writing/reading PNG data to/from memory
- // as opposed to using a file.
- struct PngDataInfo
- {
- U8 *mData;
- U32 mOffset;
- S32 mDataSize;
- };
-
- static void writeFlush(png_structp png_ptr);
- static void errorHandler(png_structp png_ptr, png_const_charp msg);
- static void readDataCallback(png_structp png_ptr, png_bytep dest, png_size_t length);
- static void writeDataCallback(png_structp png_ptr, png_bytep src, png_size_t length);
-
- void releaseResources();
-
- png_structp mReadPngPtr;
- png_infop mReadInfoPtr;
- png_structp mWritePngPtr;
- png_infop mWriteInfoPtr;
-
- U8 **mRowPointers;
-
- png_uint_32 mWidth;
- png_uint_32 mHeight;
- S32 mBitDepth;
- S32 mColorType;
- S32 mChannels;
- S32 mInterlaceType;
- S32 mCompressionType;
- S32 mFilterMethod;
-
- U32 mFinalSize;
-
- F64 mGamma;
-
- std::string mErrorMessage;
-};
-
-#endif
+/* + * @file llpngwrapper.h + * + * $LicenseInfo:firstyear=2007&license=viewerlgpl$ + * Second Life Viewer Source Code + * Copyright (C) 2010, Linden Research, Inc. + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; + * version 2.1 of the License only. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + * + * Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA + * $/LicenseInfo$ + */ + +#ifndef LL_LLPNGWRAPPER_H +#define LL_LLPNGWRAPPER_H + +#include "png.h" +#include "llimage.h" + +class LLPngWrapper +{ +public: + LLPngWrapper(); + virtual ~LLPngWrapper(); + +public: + struct ImageInfo + { + U16 mWidth; + U16 mHeight; + S8 mComponents; + }; + + bool isValidPng(U8* src); + bool readPng(U8* src, S32 dataSize, LLImageRaw* rawImage, ImageInfo *infop = NULL); + bool writePng(const LLImageRaw* rawImage, U8* dst, size_t destSize); + U32 getFinalSize(); + const std::string& getErrorMessage(); + +protected: + void normalizeImage(); + void updateMetaData(); + +private: + + // Structure for writing/reading PNG data to/from memory + // as opposed to using a file. + struct PngDataInfo + { + U8 *mData; + U32 mOffset; + S32 mDataSize; + }; + + static void writeFlush(png_structp png_ptr); + static void errorHandler(png_structp png_ptr, png_const_charp msg); + static void readDataCallback(png_structp png_ptr, png_bytep dest, png_size_t length); + static void writeDataCallback(png_structp png_ptr, png_bytep src, png_size_t length); + + void releaseResources(); + + png_structp mReadPngPtr; + png_infop mReadInfoPtr; + png_structp mWritePngPtr; + png_infop mWriteInfoPtr; + + U8 **mRowPointers; + + png_uint_32 mWidth; + png_uint_32 mHeight; + S32 mBitDepth; + S32 mColorType; + S32 mChannels; + S32 mInterlaceType; + S32 mCompressionType; + S32 mFilterMethod; + + U32 mFinalSize; + + F64 mGamma; + + std::string mErrorMessage; +}; + +#endif |