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 b17e8d1f40..7356a76353 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
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