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Diffstat (limited to 'indra/llrender/llfontbitmapcache.h')
| -rw-r--r-- | indra/llrender/llfontbitmapcache.h | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/indra/llrender/llfontbitmapcache.h b/indra/llrender/llfontbitmapcache.h new file mode 100644 index 0000000000..e5c09f8826 --- /dev/null +++ b/indra/llrender/llfontbitmapcache.h @@ -0,0 +1,78 @@ +/** + * @file llfontbitmapcache.h + * @brief Storage for previously rendered glyphs. + * + * $LicenseInfo:firstyear=2008&license=viewergpl$ + * + * Copyright (c) 2008, Linden Research, Inc. + * + * Second Life Viewer Source Code + * The source code in this file ("Source Code") is provided by Linden Lab + * to you under the terms of the GNU General Public License, version 2.0 + * ("GPL"), unless you have obtained a separate licensing agreement + * ("Other License"), formally executed by you and Linden Lab. Terms of + * the GPL can be found in doc/GPL-license.txt in this distribution, or + * online at http://secondlife.com/developers/opensource/gplv2 + * + * There are special exceptions to the terms and conditions of the GPL as + * it is applied to this Source Code. View the full text of the exception + * in the file doc/FLOSS-exception.txt in this software distribution, or + * online at http://secondlife.com/developers/opensource/flossexception + * + * By copying, modifying or distributing this software, you acknowledge + * that you have read and understood your obligations described above, + * and agree to abide by those obligations. + * + * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO + * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY, + * COMPLETENESS OR PERFORMANCE. + * $/LicenseInfo$ + */ + +#ifndef LL_LLFONTBITMAPCACHE_H +#define LL_LLFONTBITMAPCACHE_H + +#include <vector> + +// Maintain a collection of bitmaps containing rendered glyphs. +// Generalizes the single-bitmap logic from LLFont and LLFontGL. +class LLFontBitmapCache: public LLRefCount +{ +public: + LLFontBitmapCache(); + ~LLFontBitmapCache(); + + // Need to call this once, before caching any glyphs. + void init(S32 num_components, + S32 max_char_width, + S32 max_char_height); + + void reset(); + + BOOL nextOpenPos(S32 width, S32 &posX, S32 &posY, S32 &bitmapNum); + + void destroyGL(); + + LLImageRaw *getImageRaw(U32 bitmapNum = 0) const; + LLImageGL *getImageGL(U32 bitmapNum = 0) const; + + S32 getMaxCharWidth() const { return mMaxCharWidth; } + S32 getNumComponents() const { return mNumComponents; } + S32 getBitmapWidth() const { return mBitmapWidth; } + S32 getBitmapHeight() const { return mBitmapHeight; } + +private: + S32 mNumComponents; + S32 mBitmapWidth; + S32 mBitmapHeight; + S32 mBitmapNum; + S32 mMaxCharWidth; + S32 mMaxCharHeight; + S32 mCurrentOffsetX; + S32 mCurrentOffsetY; + S32 mCurrentBitmapNum; + std::vector<LLPointer<LLImageRaw> > mImageRawVec; + std::vector<LLPointer<LLImageGL> > mImageGLVec; +}; + +#endif //LL_LLFONTBITMAPCACHE_H |