CanvasContext.cpp revision cd028f336e36b22dbe8cf623eb5bd2361314495c
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 17#define LOG_TAG "CanvasContext" 18 19#include "CanvasContext.h" 20 21#include <private/hwui/DrawGlInfo.h> 22#include <strings.h> 23 24#include "EglManager.h" 25#include "RenderThread.h" 26#include "../Caches.h" 27#include "../DeferredLayerUpdater.h" 28#include "../RenderState.h" 29#include "../LayerRenderer.h" 30#include "../OpenGLRenderer.h" 31#include "../Stencil.h" 32 33namespace android { 34namespace uirenderer { 35namespace renderthread { 36 37CanvasContext::CanvasContext(RenderThread& thread, bool translucent, RenderNode* rootRenderNode) 38 : mRenderThread(thread) 39 , mEglManager(thread.eglManager()) 40 , mEglSurface(EGL_NO_SURFACE) 41 , mDirtyRegionsEnabled(false) 42 , mOpaque(!translucent) 43 , mCanvas(NULL) 44 , mHaveNewSurface(false) 45 , mRootRenderNode(rootRenderNode) { 46} 47 48CanvasContext::~CanvasContext() { 49 destroyCanvasAndSurface(); 50 mRenderThread.removeFrameCallback(this); 51} 52 53void CanvasContext::destroyCanvasAndSurface() { 54 if (mCanvas) { 55 delete mCanvas; 56 mCanvas = 0; 57 } 58 setSurface(NULL); 59} 60 61void CanvasContext::setSurface(ANativeWindow* window) { 62 mNativeWindow = window; 63 64 if (mEglSurface != EGL_NO_SURFACE) { 65 mEglManager.destroySurface(mEglSurface); 66 mEglSurface = EGL_NO_SURFACE; 67 } 68 69 if (window) { 70 mEglSurface = mEglManager.createSurface(window); 71 } 72 73 if (mEglSurface != EGL_NO_SURFACE) { 74 mDirtyRegionsEnabled = mEglManager.enableDirtyRegions(mEglSurface); 75 mHaveNewSurface = true; 76 makeCurrent(); 77 } else { 78 mRenderThread.removeFrameCallback(this); 79 } 80} 81 82void CanvasContext::swapBuffers() { 83 mEglManager.swapBuffers(mEglSurface); 84 mHaveNewSurface = false; 85} 86 87void CanvasContext::requireSurface() { 88 LOG_ALWAYS_FATAL_IF(mEglSurface == EGL_NO_SURFACE, 89 "requireSurface() called but no surface set!"); 90 makeCurrent(); 91} 92 93bool CanvasContext::initialize(ANativeWindow* window) { 94 if (mCanvas) return false; 95 setSurface(window); 96 mCanvas = new OpenGLRenderer(mRenderThread.renderState()); 97 mCanvas->initProperties(); 98 return true; 99} 100 101void CanvasContext::updateSurface(ANativeWindow* window) { 102 setSurface(window); 103} 104 105void CanvasContext::pauseSurface(ANativeWindow* window) { 106 // TODO: For now we just need a fence, in the future suspend any animations 107 // and such to prevent from trying to render into this surface 108} 109 110void CanvasContext::setup(int width, int height, const Vector3& lightCenter, float lightRadius) { 111 if (!mCanvas) return; 112 mCanvas->setViewport(width, height); 113 mCanvas->initializeLight(lightCenter, lightRadius); 114} 115 116void CanvasContext::setOpaque(bool opaque) { 117 mOpaque = opaque; 118} 119 120void CanvasContext::makeCurrent() { 121 // TODO: Figure out why this workaround is needed, see b/13913604 122 // In the meantime this matches the behavior of GLRenderer, so it is not a regression 123 mHaveNewSurface |= mEglManager.makeCurrent(mEglSurface); 124} 125 126void CanvasContext::processLayerUpdate(DeferredLayerUpdater* layerUpdater, TreeInfo& info) { 127 bool success = layerUpdater->apply(info); 128 LOG_ALWAYS_FATAL_IF(!success, "Failed to update layer!"); 129 if (layerUpdater->backingLayer()->deferredUpdateScheduled) { 130 mCanvas->pushLayerUpdate(layerUpdater->backingLayer()); 131 } 132} 133 134void CanvasContext::prepareTree(TreeInfo& info) { 135 mRenderThread.removeFrameCallback(this); 136 137 info.frameTimeMs = mRenderThread.timeLord().frameTimeMs(); 138 info.damageAccumulator = &mDamageAccumulator; 139 info.renderer = mCanvas; 140 mRootRenderNode->prepareTree(info); 141 142 int runningBehind = 0; 143 // TODO: This query is moderately expensive, investigate adding some sort 144 // of fast-path based off when we last called eglSwapBuffers() as well as 145 // last vsync time. Or something. 146 mNativeWindow->query(mNativeWindow.get(), 147 NATIVE_WINDOW_CONSUMER_RUNNING_BEHIND, &runningBehind); 148 info.out.canDrawThisFrame = !runningBehind; 149 150 if (info.out.hasAnimations || !info.out.canDrawThisFrame) { 151 if (!info.out.requiresUiRedraw) { 152 // If animationsNeedsRedraw is set don't bother posting for an RT anim 153 // as we will just end up fighting the UI thread. 154 mRenderThread.postFrameCallback(this); 155 } 156 } 157} 158 159void CanvasContext::notifyFramePending() { 160 ATRACE_CALL(); 161 mRenderThread.pushBackFrameCallback(this); 162} 163 164void CanvasContext::draw() { 165 LOG_ALWAYS_FATAL_IF(!mCanvas || mEglSurface == EGL_NO_SURFACE, 166 "drawRenderNode called on a context with no canvas or surface!"); 167 168 profiler().markPlaybackStart(); 169 170 SkRect dirty; 171 mDamageAccumulator.finish(&dirty); 172 173 EGLint width, height; 174 mEglManager.beginFrame(mEglSurface, &width, &height); 175 if (width != mCanvas->getViewportWidth() || height != mCanvas->getViewportHeight()) { 176 mCanvas->setViewport(width, height); 177 dirty.setEmpty(); 178 } else if (!mDirtyRegionsEnabled || mHaveNewSurface) { 179 dirty.setEmpty(); 180 } else { 181 profiler().unionDirty(&dirty); 182 } 183 184 status_t status; 185 if (!dirty.isEmpty()) { 186 status = mCanvas->prepareDirty(dirty.fLeft, dirty.fTop, 187 dirty.fRight, dirty.fBottom, mOpaque); 188 } else { 189 status = mCanvas->prepare(mOpaque); 190 } 191 192 Rect outBounds; 193 status |= mCanvas->drawRenderNode(mRootRenderNode.get(), outBounds); 194 195 profiler().draw(mCanvas); 196 197 mCanvas->finish(); 198 199 profiler().markPlaybackEnd(); 200 201 if (status & DrawGlInfo::kStatusDrew) { 202 swapBuffers(); 203 } 204 205 profiler().finishFrame(); 206} 207 208// Called by choreographer to do an RT-driven animation 209void CanvasContext::doFrame() { 210 if (CC_UNLIKELY(!mCanvas || mEglSurface == EGL_NO_SURFACE)) { 211 return; 212 } 213 214 ATRACE_CALL(); 215 216 profiler().startFrame(); 217 218 TreeInfo info(TreeInfo::MODE_RT_ONLY, mRenderThread.renderState()); 219 info.prepareTextures = false; 220 221 prepareTree(info); 222 if (info.out.canDrawThisFrame) { 223 draw(); 224 } 225} 226 227void CanvasContext::invokeFunctor(RenderThread& thread, Functor* functor) { 228 ATRACE_CALL(); 229 DrawGlInfo::Mode mode = DrawGlInfo::kModeProcessNoContext; 230 if (thread.eglManager().hasEglContext()) { 231 thread.eglManager().requireGlContext(); 232 mode = DrawGlInfo::kModeProcess; 233 } 234 235 thread.renderState().invokeFunctor(functor, mode, NULL); 236} 237 238bool CanvasContext::copyLayerInto(DeferredLayerUpdater* layer, SkBitmap* bitmap) { 239 requireGlContext(); 240 TreeInfo info(TreeInfo::MODE_FULL, mRenderThread.renderState()); 241 layer->apply(info); 242 return LayerRenderer::copyLayer(mRenderThread.renderState(), layer->backingLayer(), bitmap); 243} 244 245void CanvasContext::flushCaches(Caches::FlushMode flushMode) { 246 if (mEglManager.hasEglContext()) { 247 requireGlContext(); 248 Caches::getInstance().flush(flushMode); 249 } 250} 251 252void CanvasContext::runWithGlContext(RenderTask* task) { 253 requireGlContext(); 254 task->run(); 255} 256 257Layer* CanvasContext::createRenderLayer(int width, int height) { 258 requireSurface(); 259 return LayerRenderer::createRenderLayer(mRenderThread.renderState(), width, height); 260} 261 262Layer* CanvasContext::createTextureLayer() { 263 requireSurface(); 264 return LayerRenderer::createTextureLayer(mRenderThread.renderState()); 265} 266 267void CanvasContext::requireGlContext() { 268 if (mEglSurface != EGL_NO_SURFACE) { 269 makeCurrent(); 270 } else { 271 mEglManager.usePBufferSurface(); 272 } 273} 274 275void CanvasContext::setTextureAtlas(RenderThread& thread, 276 const sp<GraphicBuffer>& buffer, int64_t* map, size_t mapSize) { 277 thread.eglManager().setTextureAtlas(buffer, map, mapSize); 278} 279 280} /* namespace renderthread */ 281} /* namespace uirenderer */ 282} /* namespace android */ 283