llfontbitmapcache.h
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- /**
- * @file llfontbitmapcache.h
- * @brief Storage for previously rendered glyphs.
- *
- * $LicenseInfo:firstyear=2008&license=viewergpl$
- *
- * Copyright (c) 2008-2010, 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://secondlifegrid.net/programs/open_source/licensing/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://secondlifegrid.net/programs/open_source/licensing/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 LLFontFreetype 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;
- std::vector<LLPointer<LLImageRaw> > mImageRawVec;
- std::vector<LLPointer<LLImageGL> > mImageGLVec;
- };
- #endif //LL_LLFONTBITMAPCACHE_H