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 27 namespace android { 28 namespace uirenderer { 29 30 /////////////////////////////////////////////////////////////////////////////// 31 // Defines 32 /////////////////////////////////////////////////////////////////////////////// 33 34 // Debug 35 #if DEBUG_LAYER_RENDERER 36 #define LAYER_RENDERER_LOGD(...) ALOGD(__VA_ARGS__) 37 #else 38 #define LAYER_RENDERER_LOGD(...) 39 #endif 40 41 /////////////////////////////////////////////////////////////////////////////// 42 // Renderer 43 /////////////////////////////////////////////////////////////////////////////// 44 45 class LayerRenderer: public OpenGLRenderer { 46 public: 47 ANDROID_API LayerRenderer(Layer* layer); 48 virtual ~LayerRenderer(); 49 50 virtual void setViewport(int width, int height); 51 virtual status_t prepareDirty(float left, float top, float right, float bottom, bool opaque); 52 virtual status_t clear(float left, float top, float right, float bottom, bool opaque); 53 virtual void finish(); 54 55 ANDROID_API static Layer* createTextureLayer(bool isOpaque); 56 ANDROID_API static Layer* createLayer(uint32_t width, uint32_t height, bool isOpaque = false); 57 ANDROID_API static bool resizeLayer(Layer* layer, uint32_t width, uint32_t height); 58 ANDROID_API static void updateTextureLayer(Layer* layer, uint32_t width, uint32_t height, 59 bool isOpaque, GLenum renderTarget, float* transform); 60 ANDROID_API static void destroyLayer(Layer* layer); 61 ANDROID_API static void destroyLayerDeferred(Layer* layer); 62 ANDROID_API static bool copyLayer(Layer* layer, SkBitmap* bitmap); 63 64 static void flushLayer(Layer* layer); 65 66 protected: 67 virtual void ensureStencilBuffer(); 68 virtual bool hasLayer() const; 69 virtual Region* getRegion() const; 70 virtual GLint getTargetFbo() const; 71 virtual bool suppressErrorChecks() const; 72 73 private: 74 void generateMesh(); 75 76 Layer* mLayer; 77 }; // class LayerRenderer 78 79 }; // namespace uirenderer 80 }; // namespace android 81 82 #endif // ANDROID_HWUI_LAYER_RENDERER_H 83
