CanvasContext.cpp revision f76d36f96bf221672e98e440c9df7cbf0e02e84e
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#include "CanvasContext.h" 18 19#include <algorithm> 20#include <private/hwui/DrawGlInfo.h> 21#include <strings.h> 22 23#include "EglManager.h" 24#include "RenderThread.h" 25#include "../AnimationContext.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 33#define TRIM_MEMORY_COMPLETE 80 34#define TRIM_MEMORY_UI_HIDDEN 20 35 36namespace android { 37namespace uirenderer { 38namespace renderthread { 39 40CanvasContext::CanvasContext(RenderThread& thread, bool translucent, 41 RenderNode* rootRenderNode, IContextFactory* contextFactory) 42 : mRenderThread(thread) 43 , mEglManager(thread.eglManager()) 44 , mEglSurface(EGL_NO_SURFACE) 45 , mDirtyRegionsEnabled(false) 46 , mOpaque(!translucent) 47 , mCanvas(NULL) 48 , mHaveNewSurface(false) 49 , mRootRenderNode(rootRenderNode) { 50 mAnimationContext = contextFactory->createAnimationContext(mRenderThread.timeLord()); 51 mRenderThread.renderState().registerCanvasContext(this); 52} 53 54CanvasContext::~CanvasContext() { 55 destroy(); 56 delete mAnimationContext; 57 mRenderThread.renderState().unregisterCanvasContext(this); 58} 59 60void CanvasContext::destroy() { 61 stopDrawing(); 62 setSurface(NULL); 63 freePrefetechedLayers(); 64 destroyHardwareResources(); 65 mAnimationContext->destroy(); 66 if (mCanvas) { 67 delete mCanvas; 68 mCanvas = 0; 69 } 70} 71 72void CanvasContext::setSurface(ANativeWindow* window) { 73 mNativeWindow = window; 74 75 if (mEglSurface != EGL_NO_SURFACE) { 76 mEglManager.destroySurface(mEglSurface); 77 mEglSurface = EGL_NO_SURFACE; 78 } 79 80 if (window) { 81 mEglSurface = mEglManager.createSurface(window); 82 } 83 84 if (mEglSurface != EGL_NO_SURFACE) { 85 mDirtyRegionsEnabled = mEglManager.enableDirtyRegions(mEglSurface); 86 mHaveNewSurface = true; 87 makeCurrent(); 88 } else { 89 mRenderThread.removeFrameCallback(this); 90 } 91} 92 93void CanvasContext::swapBuffers() { 94 if (CC_UNLIKELY(!mEglManager.swapBuffers(mEglSurface))) { 95 setSurface(NULL); 96 } 97 mHaveNewSurface = false; 98} 99 100void CanvasContext::requireSurface() { 101 LOG_ALWAYS_FATAL_IF(mEglSurface == EGL_NO_SURFACE, 102 "requireSurface() called but no surface set!"); 103 makeCurrent(); 104} 105 106bool CanvasContext::initialize(ANativeWindow* window) { 107 setSurface(window); 108 if (mCanvas) return false; 109 mCanvas = new OpenGLRenderer(mRenderThread.renderState()); 110 mCanvas->initProperties(); 111 return true; 112} 113 114void CanvasContext::updateSurface(ANativeWindow* window) { 115 setSurface(window); 116} 117 118void CanvasContext::pauseSurface(ANativeWindow* window) { 119 stopDrawing(); 120} 121 122// TODO: don't pass viewport size, it's automatic via EGL 123void CanvasContext::setup(int width, int height, const Vector3& lightCenter, float lightRadius, 124 uint8_t ambientShadowAlpha, uint8_t spotShadowAlpha) { 125 if (!mCanvas) return; 126 mCanvas->initLight(lightCenter, lightRadius, ambientShadowAlpha, spotShadowAlpha); 127} 128 129void CanvasContext::setOpaque(bool opaque) { 130 mOpaque = opaque; 131} 132 133void CanvasContext::makeCurrent() { 134 // TODO: Figure out why this workaround is needed, see b/13913604 135 // In the meantime this matches the behavior of GLRenderer, so it is not a regression 136 mHaveNewSurface |= mEglManager.makeCurrent(mEglSurface); 137} 138 139void CanvasContext::processLayerUpdate(DeferredLayerUpdater* layerUpdater) { 140 bool success = layerUpdater->apply(); 141 LOG_ALWAYS_FATAL_IF(!success, "Failed to update layer!"); 142 if (layerUpdater->backingLayer()->deferredUpdateScheduled) { 143 mCanvas->pushLayerUpdate(layerUpdater->backingLayer()); 144 } 145} 146 147void CanvasContext::prepareTree(TreeInfo& info) { 148 mRenderThread.removeFrameCallback(this); 149 150 info.damageAccumulator = &mDamageAccumulator; 151 info.renderer = mCanvas; 152 if (mPrefetechedLayers.size() && info.mode == TreeInfo::MODE_FULL) { 153 info.canvasContext = this; 154 } 155 mAnimationContext->startFrame(info.mode); 156 mRootRenderNode->prepareTree(info); 157 mAnimationContext->runRemainingAnimations(info); 158 159 if (info.canvasContext) { 160 freePrefetechedLayers(); 161 } 162 163 int runningBehind = 0; 164 // TODO: This query is moderately expensive, investigate adding some sort 165 // of fast-path based off when we last called eglSwapBuffers() as well as 166 // last vsync time. Or something. 167 mNativeWindow->query(mNativeWindow.get(), 168 NATIVE_WINDOW_CONSUMER_RUNNING_BEHIND, &runningBehind); 169 info.out.canDrawThisFrame = !runningBehind; 170 171 if (info.out.hasAnimations || !info.out.canDrawThisFrame) { 172 if (!info.out.requiresUiRedraw) { 173 // If animationsNeedsRedraw is set don't bother posting for an RT anim 174 // as we will just end up fighting the UI thread. 175 mRenderThread.postFrameCallback(this); 176 } 177 } 178} 179 180void CanvasContext::stopDrawing() { 181 mRenderThread.removeFrameCallback(this); 182} 183 184void CanvasContext::notifyFramePending() { 185 ATRACE_CALL(); 186 mRenderThread.pushBackFrameCallback(this); 187} 188 189void CanvasContext::draw() { 190 LOG_ALWAYS_FATAL_IF(!mCanvas || mEglSurface == EGL_NO_SURFACE, 191 "drawRenderNode called on a context with no canvas or surface!"); 192 193 profiler().markPlaybackStart(); 194 195 SkRect dirty; 196 mDamageAccumulator.finish(&dirty); 197 198 EGLint width, height; 199 mEglManager.beginFrame(mEglSurface, &width, &height); 200 if (width != mCanvas->getViewportWidth() || height != mCanvas->getViewportHeight()) { 201 mCanvas->setViewport(width, height); 202 dirty.setEmpty(); 203 } else if (!mDirtyRegionsEnabled || mHaveNewSurface) { 204 dirty.setEmpty(); 205 } else { 206 if (!dirty.isEmpty() && !dirty.intersect(0, 0, width, height)) { 207 ALOGW("Dirty " RECT_STRING " doesn't intersect with 0 0 %d %d ?", 208 SK_RECT_ARGS(dirty), width, height); 209 dirty.setEmpty(); 210 } 211 profiler().unionDirty(&dirty); 212 } 213 214 status_t status; 215 if (!dirty.isEmpty()) { 216 status = mCanvas->prepareDirty(dirty.fLeft, dirty.fTop, 217 dirty.fRight, dirty.fBottom, mOpaque); 218 } else { 219 status = mCanvas->prepare(mOpaque); 220 } 221 222 Rect outBounds; 223 status |= mCanvas->drawRenderNode(mRootRenderNode.get(), outBounds); 224 225 profiler().draw(mCanvas); 226 227 mCanvas->finish(); 228 229 profiler().markPlaybackEnd(); 230 231 if (status & DrawGlInfo::kStatusDrew) { 232 swapBuffers(); 233 } 234 235 profiler().finishFrame(); 236} 237 238// Called by choreographer to do an RT-driven animation 239void CanvasContext::doFrame() { 240 if (CC_UNLIKELY(!mCanvas || mEglSurface == EGL_NO_SURFACE)) { 241 return; 242 } 243 244 ATRACE_CALL(); 245 246 profiler().startFrame(); 247 248 TreeInfo info(TreeInfo::MODE_RT_ONLY, mRenderThread.renderState()); 249 prepareTree(info); 250 if (info.out.canDrawThisFrame) { 251 draw(); 252 } 253} 254 255void CanvasContext::invokeFunctor(RenderThread& thread, Functor* functor) { 256 ATRACE_CALL(); 257 DrawGlInfo::Mode mode = DrawGlInfo::kModeProcessNoContext; 258 if (thread.eglManager().hasEglContext()) { 259 thread.eglManager().requireGlContext(); 260 mode = DrawGlInfo::kModeProcess; 261 } 262 263 thread.renderState().invokeFunctor(functor, mode, NULL); 264} 265 266void CanvasContext::markLayerInUse(RenderNode* node) { 267 if (mPrefetechedLayers.erase(node)) { 268 node->decStrong(0); 269 } 270} 271 272static void destroyPrefetechedNode(RenderNode* node) { 273 ALOGW("Incorrectly called buildLayer on View: %s, destroying layer...", node->getName()); 274 node->destroyHardwareResources(); 275 node->decStrong(0); 276} 277 278void CanvasContext::freePrefetechedLayers() { 279 if (mPrefetechedLayers.size()) { 280 requireGlContext(); 281 std::for_each(mPrefetechedLayers.begin(), mPrefetechedLayers.end(), destroyPrefetechedNode); 282 mPrefetechedLayers.clear(); 283 } 284} 285 286void CanvasContext::buildLayer(RenderNode* node) { 287 ATRACE_CALL(); 288 if (!mEglManager.hasEglContext() || !mCanvas) { 289 return; 290 } 291 requireGlContext(); 292 // buildLayer() will leave the tree in an unknown state, so we must stop drawing 293 stopDrawing(); 294 295 TreeInfo info(TreeInfo::MODE_FULL, mRenderThread.renderState()); 296 info.damageAccumulator = &mDamageAccumulator; 297 info.renderer = mCanvas; 298 info.runAnimations = false; 299 node->prepareTree(info); 300 SkRect ignore; 301 mDamageAccumulator.finish(&ignore); 302 // Tickle the GENERIC property on node to mark it as dirty for damaging 303 // purposes when the frame is actually drawn 304 node->setPropertyFieldsDirty(RenderNode::GENERIC); 305 306 mCanvas->markLayersAsBuildLayers(); 307 mCanvas->flushLayerUpdates(); 308 309 node->incStrong(0); 310 mPrefetechedLayers.insert(node); 311} 312 313bool CanvasContext::copyLayerInto(DeferredLayerUpdater* layer, SkBitmap* bitmap) { 314 requireGlContext(); 315 layer->apply(); 316 return LayerRenderer::copyLayer(mRenderThread.renderState(), layer->backingLayer(), bitmap); 317} 318 319void CanvasContext::destroyHardwareResources() { 320 stopDrawing(); 321 if (mEglManager.hasEglContext()) { 322 requireGlContext(); 323 freePrefetechedLayers(); 324 mRootRenderNode->destroyHardwareResources(); 325 Caches::getInstance().flush(Caches::kFlushMode_Layers); 326 } 327} 328 329void CanvasContext::trimMemory(RenderThread& thread, int level) { 330 // No context means nothing to free 331 if (!thread.eglManager().hasEglContext()) return; 332 333 thread.eglManager().requireGlContext(); 334 if (level >= TRIM_MEMORY_COMPLETE) { 335 Caches::getInstance().flush(Caches::kFlushMode_Full); 336 thread.eglManager().destroy(); 337 } else if (level >= TRIM_MEMORY_UI_HIDDEN) { 338 Caches::getInstance().flush(Caches::kFlushMode_Moderate); 339 } 340} 341 342void CanvasContext::runWithGlContext(RenderTask* task) { 343 requireGlContext(); 344 task->run(); 345} 346 347Layer* CanvasContext::createTextureLayer() { 348 requireSurface(); 349 return LayerRenderer::createTextureLayer(mRenderThread.renderState()); 350} 351 352void CanvasContext::requireGlContext() { 353 mEglManager.requireGlContext(); 354} 355 356void CanvasContext::setTextureAtlas(RenderThread& thread, 357 const sp<GraphicBuffer>& buffer, int64_t* map, size_t mapSize) { 358 thread.eglManager().setTextureAtlas(buffer, map, mapSize); 359} 360 361} /* namespace renderthread */ 362} /* namespace uirenderer */ 363} /* namespace android */ 364