1/* 2 * Copyright (C) 2011 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_LAYER_RENDERER_H 18#define ANDROID_HWUI_LAYER_RENDERER_H 19 20#include <cutils/compiler.h> 21 22#include "OpenGLRenderer.h" 23#include "Layer.h" 24 25#include <SkBitmap.h> 26 27namespace android { 28namespace uirenderer { 29 30class RenderState; 31 32/////////////////////////////////////////////////////////////////////////////// 33// Defines 34/////////////////////////////////////////////////////////////////////////////// 35 36// Debug 37#if DEBUG_LAYER_RENDERER 38 #define LAYER_RENDERER_LOGD(...) ALOGD(__VA_ARGS__) 39#else 40 #define LAYER_RENDERER_LOGD(...) 41#endif 42 43/////////////////////////////////////////////////////////////////////////////// 44// Renderer 45/////////////////////////////////////////////////////////////////////////////// 46 47class LayerRenderer: public OpenGLRenderer { 48public: 49 LayerRenderer(RenderState& renderState, Layer* layer); 50 virtual ~LayerRenderer(); 51 52 virtual void onViewportInitialized() override { /* do nothing */ } 53 virtual void prepareDirty(int viewportWidth, int viewportHeight, 54 float left, float top, float right, float bottom, bool opaque) override; 55 virtual void clear(float left, float top, float right, float bottom, bool opaque) override; 56 virtual bool finish() override; 57 58 static Layer* createTextureLayer(RenderState& renderState); 59 static Layer* createRenderLayer(RenderState& renderState, uint32_t width, uint32_t height); 60 static bool resizeLayer(Layer* layer, uint32_t width, uint32_t height); 61 static void updateTextureLayer(Layer* layer, uint32_t width, uint32_t height, 62 bool isOpaque, bool forceFilter, GLenum renderTarget, const float* textureTransform); 63 static void destroyLayer(Layer* layer); 64 static bool copyLayer(RenderState& renderState, Layer* layer, SkBitmap* bitmap); 65 66 static void flushLayer(RenderState& renderState, Layer* layer); 67 68protected: 69 virtual void ensureStencilBuffer() override; 70 virtual bool hasLayer() const override; 71 virtual Region* getRegion() const override; 72 virtual GLuint getTargetFbo() const override; 73 virtual bool suppressErrorChecks() const override; 74 75private: 76 void generateMesh(); 77 78 Layer* mLayer; 79}; // class LayerRenderer 80 81}; // namespace uirenderer 82}; // namespace android 83 84#endif // ANDROID_HWUI_LAYER_RENDERER_H 85