CanvasContext.cpp revision 28912a508493e583c48772e2a234e0ed66849490 
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 <GpuMemoryTracker.h>
18#include "CanvasContext.h"
19
20#include "AnimationContext.h"
21#include "Caches.h"
22#include "DeferredLayerUpdater.h"
23#include "EglManager.h"
24#include "LayerUpdateQueue.h"
25#include "LayerRenderer.h"
26#include "OpenGLRenderer.h"
27#include "Properties.h"
28#include "RenderThread.h"
29#include "hwui/Canvas.h"
30#include "renderstate/RenderState.h"
31#include "renderstate/Stencil.h"
32#include "protos/hwui.pb.h"
33#include "utils/GLUtils.h"
34#include "utils/TimeUtils.h"
35
36#include <cutils/properties.h>
37#include <google/protobuf/io/zero_copy_stream_impl.h>
38#include <private/hwui/DrawGlInfo.h>
39#include <strings.h>
40
41#include <algorithm>
42#include <fcntl.h>
43#include <sys/stat.h>
44
45#include <cstdlib>
46
47#define TRIM_MEMORY_COMPLETE 80
48#define TRIM_MEMORY_UI_HIDDEN 20
49
50#define ENABLE_RENDERNODE_SERIALIZATION false
51
52#define LOG_FRAMETIME_MMA 0
53
54#if LOG_FRAMETIME_MMA
55static float sBenchMma = 0;
56static int sFrameCount = 0;
57static const float NANOS_PER_MILLIS_F = 1000000.0f;
58#endif
59
60namespace android {
61namespace uirenderer {
62namespace renderthread {
63
64CanvasContext::CanvasContext(RenderThread& thread, bool translucent,
65        RenderNode* rootRenderNode, IContextFactory* contextFactory)
66        : mRenderThread(thread)
67        , mEglManager(thread.eglManager())
68        , mOpaque(!translucent)
69        , mAnimationContext(contextFactory->createAnimationContext(mRenderThread.timeLord()))
70        , mJankTracker(thread.timeLord().frameIntervalNanos())
71        , mProfiler(mFrames)
72        , mContentDrawBounds(0, 0, 0, 0) {
73    mRenderNodes.emplace_back(rootRenderNode);
74    mRenderThread.renderState().registerCanvasContext(this);
75    mProfiler.setDensity(mRenderThread.mainDisplayInfo().density);
76}
77
78CanvasContext::~CanvasContext() {
79    destroy(nullptr);
80    mRenderThread.renderState().unregisterCanvasContext(this);
81}
82
83void CanvasContext::destroy(TreeObserver* observer) {
84    stopDrawing();
85    setSurface(nullptr);
86    freePrefetchedLayers(observer);
87    destroyHardwareResources(observer);
88    mAnimationContext->destroy();
89#if !HWUI_NEW_OPS
90    if (mCanvas) {
91        delete mCanvas;
92        mCanvas = nullptr;
93    }
94#endif
95}
96
97void CanvasContext::setSurface(Surface* surface) {
98    ATRACE_CALL();
99
100    mNativeSurface = surface;
101
102    if (mEglSurface != EGL_NO_SURFACE) {
103        mEglManager.destroySurface(mEglSurface);
104        mEglSurface = EGL_NO_SURFACE;
105    }
106
107    if (surface) {
108        mEglSurface = mEglManager.createSurface(surface);
109    }
110
111    mFrameNumber = -1;
112
113    if (mEglSurface != EGL_NO_SURFACE) {
114        const bool preserveBuffer = (mSwapBehavior != kSwap_discardBuffer);
115        mBufferPreserved = mEglManager.setPreserveBuffer(mEglSurface, preserveBuffer);
116        mHaveNewSurface = true;
117        mSwapHistory.clear();
118    } else {
119        mRenderThread.removeFrameCallback(this);
120    }
121}
122
123void CanvasContext::setSwapBehavior(SwapBehavior swapBehavior) {
124    mSwapBehavior = swapBehavior;
125}
126
127void CanvasContext::initialize(Surface* surface) {
128    setSurface(surface);
129#if !HWUI_NEW_OPS
130    if (mCanvas) return;
131    mCanvas = new OpenGLRenderer(mRenderThread.renderState());
132    mCanvas->initProperties();
133#endif
134}
135
136void CanvasContext::updateSurface(Surface* surface) {
137    setSurface(surface);
138}
139
140bool CanvasContext::pauseSurface(Surface* surface) {
141    return mRenderThread.removeFrameCallback(this);
142}
143
144void CanvasContext::setStopped(bool stopped) {
145    if (mStopped != stopped) {
146        mStopped = stopped;
147        if (mStopped) {
148            mRenderThread.removeFrameCallback(this);
149            if (mEglManager.isCurrent(mEglSurface)) {
150                mEglManager.makeCurrent(EGL_NO_SURFACE);
151            }
152        }
153    }
154}
155
156// TODO: don't pass viewport size, it's automatic via EGL
157void CanvasContext::setup(int width, int height, float lightRadius,
158        uint8_t ambientShadowAlpha, uint8_t spotShadowAlpha) {
159#if HWUI_NEW_OPS
160    mLightGeometry.radius = lightRadius;
161    mLightInfo.ambientShadowAlpha = ambientShadowAlpha;
162    mLightInfo.spotShadowAlpha = spotShadowAlpha;
163#else
164    if (!mCanvas) return;
165    mCanvas->initLight(lightRadius, ambientShadowAlpha, spotShadowAlpha);
166#endif
167}
168
169void CanvasContext::setLightCenter(const Vector3& lightCenter) {
170#if HWUI_NEW_OPS
171    mLightGeometry.center = lightCenter;
172#else
173    if (!mCanvas) return;
174    mCanvas->setLightCenter(lightCenter);
175#endif
176}
177
178void CanvasContext::setOpaque(bool opaque) {
179    mOpaque = opaque;
180}
181
182bool CanvasContext::makeCurrent() {
183    if (mStopped) return false;
184
185    // TODO: Figure out why this workaround is needed, see b/13913604
186    // In the meantime this matches the behavior of GLRenderer, so it is not a regression
187    EGLint error = 0;
188    mHaveNewSurface |= mEglManager.makeCurrent(mEglSurface, &error);
189    if (error) {
190        setSurface(nullptr);
191    }
192    return !error;
193}
194
195static bool wasSkipped(FrameInfo* info) {
196    return info && ((*info)[FrameInfoIndex::Flags] & FrameInfoFlags::SkippedFrame);
197}
198
199void CanvasContext::prepareTree(TreeInfo& info, int64_t* uiFrameInfo,
200        int64_t syncQueued, RenderNode* target) {
201    mRenderThread.removeFrameCallback(this);
202
203    // If the previous frame was dropped we don't need to hold onto it, so
204    // just keep using the previous frame's structure instead
205    if (!wasSkipped(mCurrentFrameInfo)) {
206        mCurrentFrameInfo = &mFrames.next();
207    }
208    mCurrentFrameInfo->importUiThreadInfo(uiFrameInfo);
209    mCurrentFrameInfo->set(FrameInfoIndex::SyncQueued) = syncQueued;
210    mCurrentFrameInfo->markSyncStart();
211
212    info.damageAccumulator = &mDamageAccumulator;
213#if HWUI_NEW_OPS
214    info.layerUpdateQueue = &mLayerUpdateQueue;
215#else
216    info.renderer = mCanvas;
217#endif
218
219    mAnimationContext->startFrame(info.mode);
220    for (const sp<RenderNode>& node : mRenderNodes) {
221        // Only the primary target node will be drawn full - all other nodes would get drawn in
222        // real time mode. In case of a window, the primary node is the window content and the other
223        // node(s) are non client / filler nodes.
224        info.mode = (node.get() == target ? TreeInfo::MODE_FULL : TreeInfo::MODE_RT_ONLY);
225        node->prepareTree(info);
226        GL_CHECKPOINT(MODERATE);
227    }
228    mAnimationContext->runRemainingAnimations(info);
229    GL_CHECKPOINT(MODERATE);
230
231    freePrefetchedLayers(info.observer);
232    GL_CHECKPOINT(MODERATE);
233
234    if (CC_UNLIKELY(!mNativeSurface.get())) {
235        mCurrentFrameInfo->addFlag(FrameInfoFlags::SkippedFrame);
236        info.out.canDrawThisFrame = false;
237        return;
238    }
239
240    if (CC_LIKELY(mSwapHistory.size())) {
241        nsecs_t latestVsync = mRenderThread.timeLord().latestVsync();
242        const SwapHistory& lastSwap = mSwapHistory.back();
243        nsecs_t vsyncDelta = std::abs(lastSwap.vsyncTime - latestVsync);
244        // The slight fudge-factor is to deal with cases where
245        // the vsync was estimated due to being slow handling the signal.
246        // See the logic in TimeLord#computeFrameTimeNanos or in
247        // Choreographer.java for details on when this happens
248        if (vsyncDelta < 2_ms) {
249            // Already drew for this vsync pulse, UI draw request missed
250            // the deadline for RT animations
251            info.out.canDrawThisFrame = false;
252        } else if (lastSwap.swapTime < latestVsync) {
253            info.out.canDrawThisFrame = true;
254        } else {
255            // We're maybe behind? Find out for sure
256            int runningBehind = 0;
257            // TODO: Have this method be on Surface, too, not just ANativeWindow...
258            ANativeWindow* window = mNativeSurface.get();
259            window->query(window, NATIVE_WINDOW_CONSUMER_RUNNING_BEHIND, &runningBehind);
260            info.out.canDrawThisFrame = !runningBehind;
261        }
262    } else {
263        info.out.canDrawThisFrame = true;
264    }
265
266    if (!info.out.canDrawThisFrame) {
267        mCurrentFrameInfo->addFlag(FrameInfoFlags::SkippedFrame);
268    }
269
270    if (info.out.hasAnimations || !info.out.canDrawThisFrame) {
271        if (!info.out.requiresUiRedraw) {
272            // If animationsNeedsRedraw is set don't bother posting for an RT anim
273            // as we will just end up fighting the UI thread.
274            mRenderThread.postFrameCallback(this);
275        }
276    }
277}
278
279void CanvasContext::stopDrawing() {
280    mRenderThread.removeFrameCallback(this);
281}
282
283void CanvasContext::notifyFramePending() {
284    ATRACE_CALL();
285    mRenderThread.pushBackFrameCallback(this);
286}
287
288void CanvasContext::draw() {
289#if !HWUI_NEW_OPS
290    LOG_ALWAYS_FATAL_IF(!mCanvas || mEglSurface == EGL_NO_SURFACE,
291            "drawRenderNode called on a context with no canvas or surface!");
292#endif
293
294    SkRect dirty;
295    mDamageAccumulator.finish(&dirty);
296
297    // TODO: Re-enable after figuring out cause of b/22592975
298//    if (dirty.isEmpty() && Properties::skipEmptyFrames) {
299//        mCurrentFrameInfo->addFlag(FrameInfoFlags::SkippedFrame);
300//        return;
301//    }
302
303    mCurrentFrameInfo->markIssueDrawCommandsStart();
304
305    Frame frame = mEglManager.beginFrame(mEglSurface);
306
307    if (frame.width() != mLastFrameWidth || frame.height() != mLastFrameHeight) {
308        // can't rely on prior content of window if viewport size changes
309        dirty.setEmpty();
310        mLastFrameWidth = frame.width();
311        mLastFrameHeight = frame.height();
312    } else if (mHaveNewSurface || frame.bufferAge() == 0) {
313        // New surface needs a full draw
314        dirty.setEmpty();
315    } else {
316        if (!dirty.isEmpty() && !dirty.intersect(0, 0, frame.width(), frame.height())) {
317            ALOGW("Dirty " RECT_STRING " doesn't intersect with 0 0 %d %d ?",
318                    SK_RECT_ARGS(dirty), frame.width(), frame.height());
319            dirty.setEmpty();
320        }
321        profiler().unionDirty(&dirty);
322    }
323
324    if (dirty.isEmpty()) {
325        dirty.set(0, 0, frame.width(), frame.height());
326    }
327
328    // At this point dirty is the area of the screen to update. However,
329    // the area of the frame we need to repaint is potentially different, so
330    // stash the screen area for later
331    SkRect screenDirty(dirty);
332
333    // If the buffer age is 0 we do a full-screen repaint (handled above)
334    // If the buffer age is 1 the buffer contents are the same as they were
335    // last frame so there's nothing to union() against
336    // Therefore we only care about the > 1 case.
337    if (frame.bufferAge() > 1) {
338        if (frame.bufferAge() > (int) mSwapHistory.size()) {
339            // We don't have enough history to handle this old of a buffer
340            // Just do a full-draw
341            dirty.set(0, 0, frame.width(), frame.height());
342        } else {
343            // At this point we haven't yet added the latest frame
344            // to the damage history (happens below)
345            // So we need to damage
346            for (int i = mSwapHistory.size() - 1;
347                    i > ((int) mSwapHistory.size()) - frame.bufferAge(); i--) {
348                dirty.join(mSwapHistory[i].damage);
349            }
350        }
351    }
352
353    mEglManager.damageFrame(frame, dirty);
354
355#if HWUI_NEW_OPS
356    auto& caches = Caches::getInstance();
357    FrameBuilder frameBuilder(mLayerUpdateQueue, dirty, frame.width(), frame.height(),
358            mRenderNodes, mLightGeometry, mContentDrawBounds, caches);
359    mLayerUpdateQueue.clear();
360    BakedOpRenderer renderer(caches, mRenderThread.renderState(),
361            mOpaque, mLightInfo);
362    frameBuilder.replayBakedOps<BakedOpDispatcher>(renderer);
363    profiler().draw(&renderer);
364    bool drew = renderer.didDraw();
365
366    // post frame cleanup
367    caches.clearGarbage();
368    caches.pathCache.trim();
369    caches.tessellationCache.trim();
370
371#if DEBUG_MEMORY_USAGE
372    mCaches.dumpMemoryUsage();
373#else
374    if (CC_UNLIKELY(Properties::debugLevel & kDebugMemory)) {
375        caches.dumpMemoryUsage();
376    }
377#endif
378
379#else
380    mCanvas->prepareDirty(frame.width(), frame.height(),
381            dirty.fLeft, dirty.fTop, dirty.fRight, dirty.fBottom, mOpaque);
382
383    Rect outBounds;
384    // It there are multiple render nodes, they are laid out as follows:
385    // #0 - backdrop (content + caption)
386    // #1 - content (positioned at (0,0) and clipped to - its bounds mContentDrawBounds)
387    // #2 - additional overlay nodes
388    // Usually the backdrop cannot be seen since it will be entirely covered by the content. While
389    // resizing however it might become partially visible. The following render loop will crop the
390    // backdrop against the content and draw the remaining part of it. It will then draw the content
391    // cropped to the backdrop (since that indicates a shrinking of the window).
392    //
393    // Additional nodes will be drawn on top with no particular clipping semantics.
394
395    // The bounds of the backdrop against which the content should be clipped.
396    Rect backdropBounds = mContentDrawBounds;
397    // Usually the contents bounds should be mContentDrawBounds - however - we will
398    // move it towards the fixed edge to give it a more stable appearance (for the moment).
399    Rect contentBounds;
400    // If there is no content bounds we ignore the layering as stated above and start with 2.
401    int layer = (mContentDrawBounds.isEmpty() || mRenderNodes.size() == 1) ? 2 : 0;
402    // Draw all render nodes. Note that
403    for (const sp<RenderNode>& node : mRenderNodes) {
404        if (layer == 0) { // Backdrop.
405            // Draw the backdrop clipped to the inverse content bounds, but assume that the content
406            // was moved to the upper left corner.
407            const RenderProperties& properties = node->properties();
408            Rect targetBounds(properties.getLeft(), properties.getTop(),
409                              properties.getRight(), properties.getBottom());
410            // Move the content bounds towards the fixed corner of the backdrop.
411            const int x = targetBounds.left;
412            const int y = targetBounds.top;
413            contentBounds.set(x, y, x + mContentDrawBounds.getWidth(),
414                                    y + mContentDrawBounds.getHeight());
415            // Remember the intersection of the target bounds and the intersection bounds against
416            // which we have to crop the content.
417            backdropBounds.set(x, y, x + backdropBounds.getWidth(), y + backdropBounds.getHeight());
418            backdropBounds.doIntersect(targetBounds);
419            // Check if we have to draw something on the left side ...
420            if (targetBounds.left < contentBounds.left) {
421                mCanvas->save(SaveFlags::Clip);
422                if (mCanvas->clipRect(targetBounds.left, targetBounds.top,
423                                      contentBounds.left, targetBounds.bottom,
424                                      SkRegion::kIntersect_Op)) {
425                    mCanvas->drawRenderNode(node.get(), outBounds);
426                }
427                // Reduce the target area by the area we have just painted.
428                targetBounds.left = std::min(contentBounds.left, targetBounds.right);
429                mCanvas->restore();
430            }
431            // ... or on the right side ...
432            if (targetBounds.right > contentBounds.right &&
433                !targetBounds.isEmpty()) {
434                mCanvas->save(SaveFlags::Clip);
435                if (mCanvas->clipRect(contentBounds.right, targetBounds.top,
436                                      targetBounds.right, targetBounds.bottom,
437                                      SkRegion::kIntersect_Op)) {
438                    mCanvas->drawRenderNode(node.get(), outBounds);
439                }
440                // Reduce the target area by the area we have just painted.
441                targetBounds.right = std::max(targetBounds.left, contentBounds.right);
442                mCanvas->restore();
443            }
444            // ... or at the top ...
445            if (targetBounds.top < contentBounds.top &&
446                !targetBounds.isEmpty()) {
447                mCanvas->save(SaveFlags::Clip);
448                if (mCanvas->clipRect(targetBounds.left, targetBounds.top, targetBounds.right,
449                                      contentBounds.top,
450                                      SkRegion::kIntersect_Op)) {
451                    mCanvas->drawRenderNode(node.get(), outBounds);
452                }
453                // Reduce the target area by the area we have just painted.
454                targetBounds.top = std::min(contentBounds.top, targetBounds.bottom);
455                mCanvas->restore();
456            }
457            // ... or at the bottom.
458            if (targetBounds.bottom > contentBounds.bottom &&
459                !targetBounds.isEmpty()) {
460                mCanvas->save(SaveFlags::Clip);
461                if (mCanvas->clipRect(targetBounds.left, contentBounds.bottom, targetBounds.right,
462                                      targetBounds.bottom, SkRegion::kIntersect_Op)) {
463                    mCanvas->drawRenderNode(node.get(), outBounds);
464                }
465                mCanvas->restore();
466            }
467        } else if (layer == 1) { // Content
468            // It gets cropped against the bounds of the backdrop to stay inside.
469            mCanvas->save(SaveFlags::MatrixClip);
470
471            // We shift and clip the content to match its final location in the window.
472            const float left = mContentDrawBounds.left;
473            const float top = mContentDrawBounds.top;
474            const float dx = backdropBounds.left - left;
475            const float dy = backdropBounds.top - top;
476            const float width = backdropBounds.getWidth();
477            const float height = backdropBounds.getHeight();
478
479            mCanvas->translate(dx, dy);
480            if (mCanvas->clipRect(left, top, left + width, top + height, SkRegion::kIntersect_Op)) {
481                mCanvas->drawRenderNode(node.get(), outBounds);
482            }
483            mCanvas->restore();
484        } else { // draw the rest on top at will!
485            mCanvas->drawRenderNode(node.get(), outBounds);
486        }
487        layer++;
488    }
489
490    profiler().draw(mCanvas);
491
492    bool drew = mCanvas->finish();
493#endif
494
495    waitOnFences();
496
497    GL_CHECKPOINT(LOW);
498
499    // Even if we decided to cancel the frame, from the perspective of jank
500    // metrics the frame was swapped at this point
501    mCurrentFrameInfo->markSwapBuffers();
502
503    if (drew || mEglManager.damageRequiresSwap()) {
504        if (CC_UNLIKELY(!mEglManager.swapBuffers(frame, screenDirty))) {
505            setSurface(nullptr);
506        }
507        SwapHistory& swap = mSwapHistory.next();
508        swap.damage = screenDirty;
509        swap.swapTime = systemTime(CLOCK_MONOTONIC);
510        swap.vsyncTime = mRenderThread.timeLord().latestVsync();
511        mHaveNewSurface = false;
512        mFrameNumber = -1;
513    }
514
515    // TODO: Use a fence for real completion?
516    mCurrentFrameInfo->markFrameCompleted();
517
518#if LOG_FRAMETIME_MMA
519    float thisFrame = mCurrentFrameInfo->duration(
520            FrameInfoIndex::IssueDrawCommandsStart,
521            FrameInfoIndex::FrameCompleted) / NANOS_PER_MILLIS_F;
522    if (sFrameCount) {
523        sBenchMma = ((9 * sBenchMma) + thisFrame) / 10;
524    } else {
525        sBenchMma = thisFrame;
526    }
527    if (++sFrameCount == 10) {
528        sFrameCount = 1;
529        ALOGD("Average frame time: %.4f", sBenchMma);
530    }
531#endif
532
533    mJankTracker.addFrame(*mCurrentFrameInfo);
534    mRenderThread.jankTracker().addFrame(*mCurrentFrameInfo);
535    if (CC_UNLIKELY(mFrameMetricsReporter.get() != nullptr)) {
536        mFrameMetricsReporter->reportFrameMetrics(mCurrentFrameInfo->data());
537    }
538
539    GpuMemoryTracker::onFrameCompleted();
540}
541
542// Called by choreographer to do an RT-driven animation
543void CanvasContext::doFrame() {
544#if HWUI_NEW_OPS
545    if (CC_UNLIKELY(mEglSurface == EGL_NO_SURFACE)) return;
546#else
547    if (CC_UNLIKELY(!mCanvas || mEglSurface == EGL_NO_SURFACE)) return;
548#endif
549    prepareAndDraw(nullptr);
550}
551
552void CanvasContext::prepareAndDraw(RenderNode* node) {
553    ATRACE_CALL();
554
555    nsecs_t vsync = mRenderThread.timeLord().computeFrameTimeNanos();
556    int64_t frameInfo[UI_THREAD_FRAME_INFO_SIZE];
557    UiFrameInfoBuilder(frameInfo)
558        .addFlag(FrameInfoFlags::RTAnimation)
559        .setVsync(vsync, vsync);
560
561    TreeInfo info(TreeInfo::MODE_RT_ONLY, *this);
562    prepareTree(info, frameInfo, systemTime(CLOCK_MONOTONIC), node);
563    if (info.out.canDrawThisFrame) {
564        draw();
565    }
566}
567
568void CanvasContext::invokeFunctor(RenderThread& thread, Functor* functor) {
569    ATRACE_CALL();
570    DrawGlInfo::Mode mode = DrawGlInfo::kModeProcessNoContext;
571    if (thread.eglManager().hasEglContext()) {
572        mode = DrawGlInfo::kModeProcess;
573    }
574
575    thread.renderState().invokeFunctor(functor, mode, nullptr);
576}
577
578void CanvasContext::markLayerInUse(RenderNode* node) {
579    if (mPrefetchedLayers.erase(node)) {
580        node->decStrong(nullptr);
581    }
582}
583
584void CanvasContext::freePrefetchedLayers(TreeObserver* observer) {
585    if (mPrefetchedLayers.size()) {
586        for (auto& node : mPrefetchedLayers) {
587            ALOGW("Incorrectly called buildLayer on View: %s, destroying layer...",
588                    node->getName());
589            node->destroyHardwareResources(observer);
590            node->decStrong(observer);
591        }
592        mPrefetchedLayers.clear();
593    }
594}
595
596void CanvasContext::buildLayer(RenderNode* node, TreeObserver* observer) {
597    ATRACE_CALL();
598    if (!mEglManager.hasEglContext()) return;
599#if !HWUI_NEW_OPS
600    if (!mCanvas) return;
601#endif
602
603    // buildLayer() will leave the tree in an unknown state, so we must stop drawing
604    stopDrawing();
605
606    TreeInfo info(TreeInfo::MODE_FULL, *this);
607    info.damageAccumulator = &mDamageAccumulator;
608    info.observer = observer;
609#if HWUI_NEW_OPS
610    info.layerUpdateQueue = &mLayerUpdateQueue;
611#else
612    info.renderer = mCanvas;
613#endif
614    info.runAnimations = false;
615    node->prepareTree(info);
616    SkRect ignore;
617    mDamageAccumulator.finish(&ignore);
618    // Tickle the GENERIC property on node to mark it as dirty for damaging
619    // purposes when the frame is actually drawn
620    node->setPropertyFieldsDirty(RenderNode::GENERIC);
621
622#if HWUI_NEW_OPS
623    static const std::vector< sp<RenderNode> > emptyNodeList;
624    auto& caches = Caches::getInstance();
625    FrameBuilder frameBuilder(mLayerUpdateQueue, SkRect::MakeWH(1, 1), 1, 1,
626            emptyNodeList, mLightGeometry, mContentDrawBounds, caches);
627    mLayerUpdateQueue.clear();
628    BakedOpRenderer renderer(caches, mRenderThread.renderState(),
629            mOpaque, mLightInfo);
630    LOG_ALWAYS_FATAL_IF(renderer.didDraw(), "shouldn't draw in buildlayer case");
631    frameBuilder.replayBakedOps<BakedOpDispatcher>(renderer);
632#else
633    mCanvas->markLayersAsBuildLayers();
634    mCanvas->flushLayerUpdates();
635#endif
636
637    node->incStrong(nullptr);
638    mPrefetchedLayers.insert(node);
639}
640
641bool CanvasContext::copyLayerInto(DeferredLayerUpdater* layer, SkBitmap* bitmap) {
642    layer->apply();
643    return LayerRenderer::copyLayer(mRenderThread.renderState(), layer->backingLayer(), bitmap);
644}
645
646void CanvasContext::destroyHardwareResources(TreeObserver* observer) {
647    stopDrawing();
648    if (mEglManager.hasEglContext()) {
649        freePrefetchedLayers(observer);
650        for (const sp<RenderNode>& node : mRenderNodes) {
651            node->destroyHardwareResources(observer);
652        }
653        Caches& caches = Caches::getInstance();
654        // Make sure to release all the textures we were owning as there won't
655        // be another draw
656        caches.textureCache.resetMarkInUse(this);
657        mRenderThread.renderState().flush(Caches::FlushMode::Layers);
658    }
659}
660
661void CanvasContext::trimMemory(RenderThread& thread, int level) {
662    // No context means nothing to free
663    if (!thread.eglManager().hasEglContext()) return;
664
665    ATRACE_CALL();
666    if (level >= TRIM_MEMORY_COMPLETE) {
667        thread.renderState().flush(Caches::FlushMode::Full);
668        thread.eglManager().destroy();
669    } else if (level >= TRIM_MEMORY_UI_HIDDEN) {
670        thread.renderState().flush(Caches::FlushMode::Moderate);
671    }
672}
673
674void CanvasContext::runWithGlContext(RenderTask* task) {
675    LOG_ALWAYS_FATAL_IF(!mEglManager.hasEglContext(),
676            "GL context not initialized!");
677    task->run();
678}
679
680Layer* CanvasContext::createTextureLayer() {
681    mEglManager.initialize();
682    return LayerRenderer::createTextureLayer(mRenderThread.renderState());
683}
684
685void CanvasContext::setTextureAtlas(RenderThread& thread,
686        const sp<GraphicBuffer>& buffer, int64_t* map, size_t mapSize) {
687    thread.eglManager().setTextureAtlas(buffer, map, mapSize);
688}
689
690void CanvasContext::dumpFrames(int fd) {
691    FILE* file = fdopen(fd, "a");
692    fprintf(file, "\n\n---PROFILEDATA---\n");
693    for (size_t i = 0; i < static_cast<size_t>(FrameInfoIndex::NumIndexes); i++) {
694        fprintf(file, "%s", FrameInfoNames[i].c_str());
695        fprintf(file, ",");
696    }
697    for (size_t i = 0; i < mFrames.size(); i++) {
698        FrameInfo& frame = mFrames[i];
699        if (frame[FrameInfoIndex::SyncStart] == 0) {
700            continue;
701        }
702        fprintf(file, "\n");
703        for (int i = 0; i < static_cast<int>(FrameInfoIndex::NumIndexes); i++) {
704            fprintf(file, "%" PRId64 ",", frame[i]);
705        }
706    }
707    fprintf(file, "\n---PROFILEDATA---\n\n");
708    fflush(file);
709}
710
711void CanvasContext::resetFrameStats() {
712    mFrames.clear();
713    mRenderThread.jankTracker().reset();
714}
715
716void CanvasContext::serializeDisplayListTree() {
717#if ENABLE_RENDERNODE_SERIALIZATION
718    using namespace google::protobuf::io;
719    char package[128];
720    // Check whether tracing is enabled for this process.
721    FILE * file = fopen("/proc/self/cmdline", "r");
722    if (file) {
723        if (!fgets(package, 128, file)) {
724            ALOGE("Error reading cmdline: %s (%d)", strerror(errno), errno);
725            fclose(file);
726            return;
727        }
728        fclose(file);
729    } else {
730        ALOGE("Error opening /proc/self/cmdline: %s (%d)", strerror(errno),
731                errno);
732        return;
733    }
734    char path[1024];
735    snprintf(path, 1024, "/data/data/%s/cache/rendertree_dump", package);
736    int fd = open(path, O_CREAT | O_WRONLY, S_IRWXU | S_IRGRP | S_IROTH);
737    if (fd == -1) {
738        ALOGD("Failed to open '%s'", path);
739        return;
740    }
741    proto::RenderNode tree;
742    // TODO: Streaming writes?
743    mRootRenderNode->copyTo(&tree);
744    std::string data = tree.SerializeAsString();
745    write(fd, data.c_str(), data.length());
746    close(fd);
747#endif
748}
749
750void CanvasContext::waitOnFences() {
751    if (mFrameFences.size()) {
752        ATRACE_CALL();
753        for (auto& fence : mFrameFences) {
754            fence->getResult();
755        }
756        mFrameFences.clear();
757    }
758}
759
760class CanvasContext::FuncTaskProcessor : public TaskProcessor<bool> {
761public:
762    FuncTaskProcessor(Caches& caches)
763            : TaskProcessor<bool>(&caches.tasks) {}
764
765    virtual void onProcess(const sp<Task<bool> >& task) override {
766        FuncTask* t = static_cast<FuncTask*>(task.get());
767        t->func();
768        task->setResult(true);
769    }
770};
771
772void CanvasContext::enqueueFrameWork(std::function<void()>&& func) {
773    if (!mFrameWorkProcessor.get()) {
774        mFrameWorkProcessor = new FuncTaskProcessor(Caches::getInstance());
775    }
776    sp<FuncTask> task(new FuncTask());
777    task->func = func;
778    mFrameWorkProcessor->add(task);
779}
780
781int64_t CanvasContext::getFrameNumber() {
782    // mFrameNumber is reset to -1 when the surface changes or we swap buffers
783    if (mFrameNumber == -1 && mNativeSurface.get()) {
784        mFrameNumber = static_cast<int64_t>(mNativeSurface->getNextFrameNumber());
785    }
786    return mFrameNumber;
787}
788
789} /* namespace renderthread */
790} /* namespace uirenderer */
791} /* namespace android */
792