1/* 2 * Copyright (C) 2014 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#ifndef RENDERSTATE_H 17#define RENDERSTATE_H 18 19#include <set> 20#include <GLES2/gl2.h> 21#include <GLES2/gl2ext.h> 22#include <utils/Mutex.h> 23#include <utils/Functor.h> 24#include <utils/RefBase.h> 25#include <private/hwui/DrawGlInfo.h> 26#include <renderstate/Blend.h> 27 28#include "AssetAtlas.h" 29#include "Caches.h" 30#include "Glop.h" 31#include "renderstate/MeshState.h" 32#include "renderstate/PixelBufferState.h" 33#include "renderstate/Scissor.h" 34#include "renderstate/Stencil.h" 35#include "utils/Macros.h" 36 37namespace android { 38namespace uirenderer { 39 40class Caches; 41class Layer; 42 43namespace renderthread { 44class CanvasContext; 45class RenderThread; 46} 47 48// TODO: Replace Cache's GL state tracking with this. For now it's more a thin 49// wrapper of Caches for users to migrate to. 50class RenderState { 51 PREVENT_COPY_AND_ASSIGN(RenderState); 52public: 53 void onGLContextCreated(); 54 void onGLContextDestroyed(); 55 56 void setViewport(GLsizei width, GLsizei height); 57 void getViewport(GLsizei* outWidth, GLsizei* outHeight); 58 59 void bindFramebuffer(GLuint fbo); 60 GLint getFramebuffer() { return mFramebuffer; } 61 62 void invokeFunctor(Functor* functor, DrawGlInfo::Mode mode, DrawGlInfo* info); 63 64 void debugOverdraw(bool enable, bool clear); 65 66 void registerLayer(Layer* layer) { 67 mActiveLayers.insert(layer); 68 } 69 void unregisterLayer(Layer* layer) { 70 mActiveLayers.erase(layer); 71 } 72 73 void registerCanvasContext(renderthread::CanvasContext* context) { 74 mRegisteredContexts.insert(context); 75 } 76 77 void unregisterCanvasContext(renderthread::CanvasContext* context) { 78 mRegisteredContexts.erase(context); 79 } 80 81 void requireGLContext(); 82 83 // TODO: This system is a little clunky feeling, this could use some 84 // more thinking... 85 void postDecStrong(VirtualLightRefBase* object); 86 87 void render(const Glop& glop); 88 89 AssetAtlas& assetAtlas() { return mAssetAtlas; } 90 Blend& blend() { return *mBlend; } 91 MeshState& meshState() { return *mMeshState; } 92 Scissor& scissor() { return *mScissor; } 93 Stencil& stencil() { return *mStencil; } 94 95 void dump(); 96private: 97 friend class renderthread::RenderThread; 98 friend class Caches; 99 100 void interruptForFunctorInvoke(); 101 void resumeFromFunctorInvoke(); 102 void assertOnGLThread(); 103 104 RenderState(renderthread::RenderThread& thread); 105 ~RenderState(); 106 107 108 renderthread::RenderThread& mRenderThread; 109 Caches* mCaches = nullptr; 110 111 Blend* mBlend = nullptr; 112 MeshState* mMeshState = nullptr; 113 Scissor* mScissor = nullptr; 114 Stencil* mStencil = nullptr; 115 116 AssetAtlas mAssetAtlas; 117 std::set<Layer*> mActiveLayers; 118 std::set<renderthread::CanvasContext*> mRegisteredContexts; 119 120 GLsizei mViewportWidth; 121 GLsizei mViewportHeight; 122 GLuint mFramebuffer; 123 124 pthread_t mThreadId; 125}; 126 127} /* namespace uirenderer */ 128} /* namespace android */ 129 130#endif /* RENDERSTATE_H */ 131