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 class 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 47 class LayerRenderer: public OpenGLRenderer { 48 public: 49 LayerRenderer(RenderState& renderState, Layer* layer); 50 virtual ~LayerRenderer(); 51 52 virtual void onViewportInitialized() { /* do nothing */ } 53 virtual status_t prepareDirty(float left, float top, float right, float bottom, bool opaque); 54 virtual status_t clear(float left, float top, float right, float bottom, bool opaque); 55 virtual void finish(); 56 57 static Layer* createTextureLayer(RenderState& renderState); 58 static Layer* createRenderLayer(RenderState& renderState, uint32_t width, uint32_t height); 59 static bool resizeLayer(Layer* layer, uint32_t width, uint32_t height); 60 static void updateTextureLayer(Layer* layer, uint32_t width, uint32_t height, 61 bool isOpaque, bool forceFilter, GLenum renderTarget, float* textureTransform); 62 static void destroyLayer(Layer* layer); 63 static bool copyLayer(RenderState& renderState, Layer* layer, SkBitmap* bitmap); 64 65 static void flushLayer(RenderState& renderState, Layer* layer); 66 67 protected: 68 virtual void ensureStencilBuffer(); 69 virtual bool hasLayer() const; 70 virtual Region* getRegion() const; 71 virtual GLuint getTargetFbo() const; 72 virtual bool suppressErrorChecks() const; 73 74 private: 75 void generateMesh(); 76 77 Layer* mLayer; 78 }; // class LayerRenderer 79 80 }; // namespace uirenderer 81 }; // namespace android 82 83 #endif // ANDROID_HWUI_LAYER_RENDERER_H 84
