1/* 2 * Copyright (C) 2010 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17#ifndef ANDROID_HWUI_GAMMA_FONT_RENDERER_H 18#define ANDROID_HWUI_GAMMA_FONT_RENDERER_H 19 20#include "FontRenderer.h" 21 22namespace android { 23namespace uirenderer { 24 25class GammaFontRenderer { 26public: 27 GammaFontRenderer(); 28 29 void clear() { 30 mRenderer.reset(nullptr); 31 } 32 33 void flush() { 34 if (mRenderer) { 35 mRenderer->flushLargeCaches(); 36 } 37 } 38 39 FontRenderer& getFontRenderer() { 40 if (!mRenderer) { 41 const uint8_t* table = nullptr; 42#ifndef ANDROID_ENABLE_LINEAR_BLENDING 43 table = &mGammaTable[0]; 44#endif 45 mRenderer.reset(new FontRenderer(table)); 46 } 47 return *mRenderer; 48 } 49 50 void dumpMemoryUsage(String8& log) const { 51 if (mRenderer) { 52 mRenderer->dumpMemoryUsage(log); 53 } else { 54 log.appendFormat("FontRenderer doesn't exist.\n"); 55 } 56 } 57 58 uint32_t getSize() const { 59 return mRenderer ? mRenderer->getSize() : 0; 60 } 61 62 void endPrecaching(); 63 64private: 65 std::unique_ptr<FontRenderer> mRenderer; 66#ifndef ANDROID_ENABLE_LINEAR_BLENDING 67 uint8_t mGammaTable[256]; 68#endif 69}; 70 71}; // namespace uirenderer 72}; // namespace android 73 74#endif // ANDROID_HWUI_GAMMA_FONT_RENDERER_H 75