/** * @file llfontbitmapcache.h * @brief Storage for previously rendered glyphs. * * $LicenseInfo:firstyear=2008&license=viewerlgpl$ * 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_LLFONTBITMAPCACHE_H #define LL_LLFONTBITMAPCACHE_H #include <vector> #include "lltrace.h" // Maintain a collection of bitmaps containing rendered glyphs. // Generalizes the single-bitmap logic from LLFontFreetype and LLFontGL. class LLFontBitmapCache : public LLTrace::MemTrackable<LLFontBitmapCache> { 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