CanvasContext.cpp revision 1b54fb27ac48495ed0b33868fda5776fb49fe0f3
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 "AnimationContext.h" 20#include "Caches.h" 21#include "DeferredLayerUpdater.h" 22#include "EglManager.h" 23#include "LayerRenderer.h" 24#include "OpenGLRenderer.h" 25#include "Properties.h" 26#include "RenderThread.h" 27#include "renderstate/RenderState.h" 28#include "renderstate/Stencil.h" 29 30#include <algorithm> 31#include <strings.h> 32#include <cutils/properties.h> 33#include <private/hwui/DrawGlInfo.h> 34 35#define TRIM_MEMORY_COMPLETE 80 36#define TRIM_MEMORY_UI_HIDDEN 20 37 38namespace android { 39namespace uirenderer { 40namespace renderthread { 41 42CanvasContext::CanvasContext(RenderThread& thread, bool translucent, 43 RenderNode* rootRenderNode, IContextFactory* contextFactory) 44 : mRenderThread(thread) 45 , mEglManager(thread.eglManager()) 46 , mOpaque(!translucent) 47 , mAnimationContext(contextFactory->createAnimationContext(mRenderThread.timeLord())) 48 , mRootRenderNode(rootRenderNode) 49 , mJankTracker(thread.timeLord().frameIntervalNanos()) 50 , mProfiler(mFrames) { 51 mRenderThread.renderState().registerCanvasContext(this); 52 mProfiler.setDensity(mRenderThread.mainDisplayInfo().density); 53} 54 55CanvasContext::~CanvasContext() { 56 destroy(); 57 mRenderThread.renderState().unregisterCanvasContext(this); 58} 59 60void CanvasContext::destroy() { 61 stopDrawing(); 62 setSurface(nullptr); 63 freePrefetechedLayers(); 64 destroyHardwareResources(); 65 mAnimationContext->destroy(); 66 if (mCanvas) { 67 delete mCanvas; 68 mCanvas = nullptr; 69 } 70} 71 72void CanvasContext::setSurface(ANativeWindow* window) { 73 ATRACE_CALL(); 74 75 mNativeWindow = window; 76 77 if (mEglSurface != EGL_NO_SURFACE) { 78 mEglManager.destroySurface(mEglSurface); 79 mEglSurface = EGL_NO_SURFACE; 80 } 81 82 if (window) { 83 mEglSurface = mEglManager.createSurface(window); 84 } 85 86 if (mEglSurface != EGL_NO_SURFACE) { 87 const bool preserveBuffer = (mSwapBehavior != kSwap_discardBuffer); 88 mBufferPreserved = mEglManager.setPreserveBuffer(mEglSurface, preserveBuffer); 89 mHaveNewSurface = true; 90 makeCurrent(); 91 } else { 92 mRenderThread.removeFrameCallback(this); 93 } 94} 95 96void CanvasContext::swapBuffers(const SkRect& dirty, EGLint width, EGLint height) { 97 if (CC_UNLIKELY(!mEglManager.swapBuffers(mEglSurface, dirty, width, height))) { 98 setSurface(nullptr); 99 } 100 mHaveNewSurface = false; 101} 102 103void CanvasContext::requireSurface() { 104 LOG_ALWAYS_FATAL_IF(mEglSurface == EGL_NO_SURFACE, 105 "requireSurface() called but no surface set!"); 106 makeCurrent(); 107} 108 109void CanvasContext::setSwapBehavior(SwapBehavior swapBehavior) { 110 mSwapBehavior = swapBehavior; 111} 112 113bool CanvasContext::initialize(ANativeWindow* window) { 114 setSurface(window); 115 if (mCanvas) return false; 116 mCanvas = new OpenGLRenderer(mRenderThread.renderState()); 117 mCanvas->initProperties(); 118 return true; 119} 120 121void CanvasContext::updateSurface(ANativeWindow* window) { 122 setSurface(window); 123} 124 125bool CanvasContext::pauseSurface(ANativeWindow* window) { 126 return mRenderThread.removeFrameCallback(this); 127} 128 129// TODO: don't pass viewport size, it's automatic via EGL 130void CanvasContext::setup(int width, int height, float lightRadius, 131 uint8_t ambientShadowAlpha, uint8_t spotShadowAlpha) { 132 if (!mCanvas) return; 133 mCanvas->initLight(lightRadius, ambientShadowAlpha, spotShadowAlpha); 134} 135 136void CanvasContext::setLightCenter(const Vector3& lightCenter) { 137 if (!mCanvas) return; 138 mCanvas->setLightCenter(lightCenter); 139} 140 141void CanvasContext::setOpaque(bool opaque) { 142 mOpaque = opaque; 143} 144 145void CanvasContext::makeCurrent() { 146 // TODO: Figure out why this workaround is needed, see b/13913604 147 // In the meantime this matches the behavior of GLRenderer, so it is not a regression 148 mHaveNewSurface |= mEglManager.makeCurrent(mEglSurface); 149} 150 151void CanvasContext::processLayerUpdate(DeferredLayerUpdater* layerUpdater) { 152 bool success = layerUpdater->apply(); 153 LOG_ALWAYS_FATAL_IF(!success, "Failed to update layer!"); 154 if (layerUpdater->backingLayer()->deferredUpdateScheduled) { 155 mCanvas->pushLayerUpdate(layerUpdater->backingLayer()); 156 } 157} 158 159static bool wasSkipped(FrameInfo* info) { 160 return info && ((*info)[FrameInfoIndex::Flags] & FrameInfoFlags::SkippedFrame); 161} 162 163void CanvasContext::prepareTree(TreeInfo& info, int64_t* uiFrameInfo) { 164 mRenderThread.removeFrameCallback(this); 165 166 // If the previous frame was dropped we don't need to hold onto it, so 167 // just keep using the previous frame's structure instead 168 if (!wasSkipped(mCurrentFrameInfo)) { 169 mCurrentFrameInfo = &mFrames.next(); 170 } 171 mCurrentFrameInfo->importUiThreadInfo(uiFrameInfo); 172 mCurrentFrameInfo->markSyncStart(); 173 174 info.damageAccumulator = &mDamageAccumulator; 175 info.renderer = mCanvas; 176 if (mPrefetechedLayers.size() && info.mode == TreeInfo::MODE_FULL) { 177 info.canvasContext = this; 178 } 179 mAnimationContext->startFrame(info.mode); 180 mRootRenderNode->prepareTree(info); 181 mAnimationContext->runRemainingAnimations(info); 182 183 if (info.canvasContext) { 184 freePrefetechedLayers(); 185 } 186 187 if (CC_UNLIKELY(!mNativeWindow.get())) { 188 mCurrentFrameInfo->addFlag(FrameInfoFlags::SkippedFrame); 189 info.out.canDrawThisFrame = false; 190 return; 191 } 192 193 int runningBehind = 0; 194 // TODO: This query is moderately expensive, investigate adding some sort 195 // of fast-path based off when we last called eglSwapBuffers() as well as 196 // last vsync time. Or something. 197 mNativeWindow->query(mNativeWindow.get(), 198 NATIVE_WINDOW_CONSUMER_RUNNING_BEHIND, &runningBehind); 199 info.out.canDrawThisFrame = !runningBehind; 200 201 if (!info.out.canDrawThisFrame) { 202 mCurrentFrameInfo->addFlag(FrameInfoFlags::SkippedFrame); 203 } 204 205 if (info.out.hasAnimations || !info.out.canDrawThisFrame) { 206 if (!info.out.requiresUiRedraw) { 207 // If animationsNeedsRedraw is set don't bother posting for an RT anim 208 // as we will just end up fighting the UI thread. 209 mRenderThread.postFrameCallback(this); 210 } 211 } 212} 213 214void CanvasContext::stopDrawing() { 215 mRenderThread.removeFrameCallback(this); 216} 217 218void CanvasContext::notifyFramePending() { 219 ATRACE_CALL(); 220 mRenderThread.pushBackFrameCallback(this); 221} 222 223void CanvasContext::draw() { 224 LOG_ALWAYS_FATAL_IF(!mCanvas || mEglSurface == EGL_NO_SURFACE, 225 "drawRenderNode called on a context with no canvas or surface!"); 226 227 SkRect dirty; 228 mDamageAccumulator.finish(&dirty); 229 230 if (dirty.isEmpty() && Properties::skipEmptyFrames) { 231 mCurrentFrameInfo->addFlag(FrameInfoFlags::SkippedFrame); 232 return; 233 } 234 235 mCurrentFrameInfo->markIssueDrawCommandsStart(); 236 237 EGLint width, height; 238 mEglManager.beginFrame(mEglSurface, &width, &height); 239 if (width != mCanvas->getViewportWidth() || height != mCanvas->getViewportHeight()) { 240 mCanvas->setViewport(width, height); 241 dirty.setEmpty(); 242 } else if (!mBufferPreserved || mHaveNewSurface) { 243 dirty.setEmpty(); 244 } else { 245 if (!dirty.isEmpty() && !dirty.intersect(0, 0, width, height)) { 246 ALOGW("Dirty " RECT_STRING " doesn't intersect with 0 0 %d %d ?", 247 SK_RECT_ARGS(dirty), width, height); 248 dirty.setEmpty(); 249 } 250 profiler().unionDirty(&dirty); 251 } 252 253 if (!dirty.isEmpty()) { 254 mCanvas->prepareDirty(dirty.fLeft, dirty.fTop, 255 dirty.fRight, dirty.fBottom, mOpaque); 256 } else { 257 mCanvas->prepare(mOpaque); 258 } 259 260 Rect outBounds; 261 mCanvas->drawRenderNode(mRootRenderNode.get(), outBounds); 262 263 profiler().draw(mCanvas); 264 265 bool drew = mCanvas->finish(); 266 267 // Even if we decided to cancel the frame, from the perspective of jank 268 // metrics the frame was swapped at this point 269 mCurrentFrameInfo->markSwapBuffers(); 270 271 if (drew) { 272 swapBuffers(dirty, width, height); 273 } 274 275 // TODO: Use a fence for real completion? 276 mCurrentFrameInfo->markFrameCompleted(); 277 mJankTracker.addFrame(*mCurrentFrameInfo); 278 mRenderThread.jankTracker().addFrame(*mCurrentFrameInfo); 279} 280 281// Called by choreographer to do an RT-driven animation 282void CanvasContext::doFrame() { 283 if (CC_UNLIKELY(!mCanvas || mEglSurface == EGL_NO_SURFACE)) { 284 return; 285 } 286 287 ATRACE_CALL(); 288 289 int64_t frameInfo[UI_THREAD_FRAME_INFO_SIZE]; 290 UiFrameInfoBuilder(frameInfo) 291 .addFlag(FrameInfoFlags::RTAnimation) 292 .setVsync(mRenderThread.timeLord().computeFrameTimeNanos(), 293 mRenderThread.timeLord().latestVsync()); 294 295 TreeInfo info(TreeInfo::MODE_RT_ONLY, mRenderThread.renderState()); 296 prepareTree(info, frameInfo); 297 if (info.out.canDrawThisFrame) { 298 draw(); 299 } 300} 301 302void CanvasContext::invokeFunctor(RenderThread& thread, Functor* functor) { 303 ATRACE_CALL(); 304 DrawGlInfo::Mode mode = DrawGlInfo::kModeProcessNoContext; 305 if (thread.eglManager().hasEglContext()) { 306 mode = DrawGlInfo::kModeProcess; 307 } 308 309 thread.renderState().invokeFunctor(functor, mode, nullptr); 310} 311 312void CanvasContext::markLayerInUse(RenderNode* node) { 313 if (mPrefetechedLayers.erase(node)) { 314 node->decStrong(nullptr); 315 } 316} 317 318static void destroyPrefetechedNode(RenderNode* node) { 319 ALOGW("Incorrectly called buildLayer on View: %s, destroying layer...", node->getName()); 320 node->destroyHardwareResources(); 321 node->decStrong(nullptr); 322} 323 324void CanvasContext::freePrefetechedLayers() { 325 if (mPrefetechedLayers.size()) { 326 std::for_each(mPrefetechedLayers.begin(), mPrefetechedLayers.end(), destroyPrefetechedNode); 327 mPrefetechedLayers.clear(); 328 } 329} 330 331void CanvasContext::buildLayer(RenderNode* node) { 332 ATRACE_CALL(); 333 if (!mEglManager.hasEglContext() || !mCanvas) { 334 return; 335 } 336 // buildLayer() will leave the tree in an unknown state, so we must stop drawing 337 stopDrawing(); 338 339 TreeInfo info(TreeInfo::MODE_FULL, mRenderThread.renderState()); 340 info.damageAccumulator = &mDamageAccumulator; 341 info.renderer = mCanvas; 342 info.runAnimations = false; 343 node->prepareTree(info); 344 SkRect ignore; 345 mDamageAccumulator.finish(&ignore); 346 // Tickle the GENERIC property on node to mark it as dirty for damaging 347 // purposes when the frame is actually drawn 348 node->setPropertyFieldsDirty(RenderNode::GENERIC); 349 350 mCanvas->markLayersAsBuildLayers(); 351 mCanvas->flushLayerUpdates(); 352 353 node->incStrong(nullptr); 354 mPrefetechedLayers.insert(node); 355} 356 357bool CanvasContext::copyLayerInto(DeferredLayerUpdater* layer, SkBitmap* bitmap) { 358 layer->apply(); 359 return LayerRenderer::copyLayer(mRenderThread.renderState(), layer->backingLayer(), bitmap); 360} 361 362void CanvasContext::destroyHardwareResources() { 363 stopDrawing(); 364 if (mEglManager.hasEglContext()) { 365 freePrefetechedLayers(); 366 mRootRenderNode->destroyHardwareResources(); 367 Caches::getInstance().flush(Caches::kFlushMode_Layers); 368 } 369} 370 371void CanvasContext::trimMemory(RenderThread& thread, int level) { 372 // No context means nothing to free 373 if (!thread.eglManager().hasEglContext()) return; 374 375 ATRACE_CALL(); 376 if (level >= TRIM_MEMORY_COMPLETE) { 377 Caches::getInstance().flush(Caches::kFlushMode_Full); 378 thread.eglManager().destroy(); 379 } else if (level >= TRIM_MEMORY_UI_HIDDEN) { 380 Caches::getInstance().flush(Caches::kFlushMode_Moderate); 381 } 382} 383 384void CanvasContext::runWithGlContext(RenderTask* task) { 385 LOG_ALWAYS_FATAL_IF(!mEglManager.hasEglContext(), 386 "GL context not initialized!"); 387 task->run(); 388} 389 390Layer* CanvasContext::createTextureLayer() { 391 requireSurface(); 392 return LayerRenderer::createTextureLayer(mRenderThread.renderState()); 393} 394 395void CanvasContext::setTextureAtlas(RenderThread& thread, 396 const sp<GraphicBuffer>& buffer, int64_t* map, size_t mapSize) { 397 thread.eglManager().setTextureAtlas(buffer, map, mapSize); 398} 399 400void CanvasContext::dumpFrames(int fd) { 401 FILE* file = fdopen(fd, "a"); 402 fprintf(file, "\n\n---PROFILEDATA---\n"); 403 for (size_t i = 0; i < static_cast<size_t>(FrameInfoIndex::NumIndexes); i++) { 404 fprintf(file, "%s", FrameInfoNames[i].c_str()); 405 fprintf(file, ","); 406 } 407 for (size_t i = 0; i < mFrames.size(); i++) { 408 FrameInfo& frame = mFrames[i]; 409 if (frame[FrameInfoIndex::SyncStart] == 0) { 410 continue; 411 } 412 fprintf(file, "\n"); 413 for (int i = 0; i < static_cast<int>(FrameInfoIndex::NumIndexes); i++) { 414 fprintf(file, "%" PRId64 ",", frame[i]); 415 } 416 } 417 fprintf(file, "\n---PROFILEDATA---\n\n"); 418 fflush(file); 419} 420 421void CanvasContext::resetFrameStats() { 422 mFrames.clear(); 423 mRenderThread.jankTracker().reset(); 424} 425 426} /* namespace renderthread */ 427} /* namespace uirenderer */ 428} /* namespace android */ 429