1 /* 2 * Copyright (C) 2012 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_DITHER_H 18 #define ANDROID_HWUI_DITHER_H 19 20 #include <GLES2/gl2.h> 21 22 #include "Program.h" 23 24 namespace android { 25 namespace uirenderer { 26 27 /** 28 * Handles dithering for programs. 29 */ 30 class Dither { 31 public: 32 Dither(): mInitialized(false), mDitherTexture(0) { } 33 34 void clear(); 35 void setupProgram(Program* program, GLuint* textureUnit); 36 37 private: 38 void bindDitherTexture(); 39 40 bool mInitialized; 41 GLuint mDitherTexture; 42 }; 43 44 }; // namespace uirenderer 45 }; // namespace android 46 47 #endif // ANDROID_HWUI_DITHER_H 48
