8ca3eecc2b
Bug: 13952590 It was attempting to flush state changes after the canvas was destroyed, which caused layer updates to crash. Due to the removal of SetDisplayListData, the sync mode isn't able to do anything ever, so remove it. Change-Id: I1e18ce288d81fd47cc6e612afda9476f75ecef2e
139 lines
3.6 KiB
C++
139 lines
3.6 KiB
C++
/*
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* Copyright (C) 2014 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#define ATRACE_TAG ATRACE_TAG_VIEW
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#include "DrawFrameTask.h"
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#include <utils/Log.h>
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#include <utils/Trace.h>
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#include "../DisplayList.h"
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#include "../RenderNode.h"
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#include "CanvasContext.h"
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#include "RenderThread.h"
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namespace android {
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namespace uirenderer {
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namespace renderthread {
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DrawFrameTask::DrawFrameTask() : mContext(0), mRenderNode(0) {
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}
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DrawFrameTask::~DrawFrameTask() {
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}
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void DrawFrameTask::setContext(CanvasContext* context) {
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mContext = context;
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}
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void DrawFrameTask::addLayer(DeferredLayerUpdater* layer) {
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LOG_ALWAYS_FATAL_IF(!mContext, "Lifecycle violation, there's no context to addLayer with!");
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mLayers.push(layer);
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}
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void DrawFrameTask::removeLayer(DeferredLayerUpdater* layer) {
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for (size_t i = 0; i < mLayers.size(); i++) {
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if (mLayers[i] == layer) {
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mLayers.removeAt(i);
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break;
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}
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}
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}
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void DrawFrameTask::setRenderNode(RenderNode* renderNode) {
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LOG_ALWAYS_FATAL_IF(!mContext, "Lifecycle violation, there's no context to setRenderNode with!");
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mRenderNode = renderNode;
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}
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void DrawFrameTask::setDirty(int left, int top, int right, int bottom) {
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mDirty.set(left, top, right, bottom);
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}
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void DrawFrameTask::drawFrame(RenderThread* renderThread) {
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LOG_ALWAYS_FATAL_IF(!mRenderNode.get(), "Cannot drawFrame with no render node!");
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LOG_ALWAYS_FATAL_IF(!mContext, "Cannot drawFrame with no CanvasContext!");
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postAndWait(renderThread);
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// Reset the single-frame data
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mDirty.setEmpty();
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mRenderNode = 0;
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}
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void DrawFrameTask::postAndWait(RenderThread* renderThread) {
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AutoMutex _lock(mLock);
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renderThread->queue(this);
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mSignal.wait(mLock);
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}
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void DrawFrameTask::run() {
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ATRACE_NAME("DrawFrame");
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// canUnblockUiThread is temporary until WebView has a solution for syncing frame state
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bool canUnblockUiThread = syncFrameState();
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// Grab a copy of everything we need
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Rect dirtyCopy(mDirty);
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sp<RenderNode> renderNode = mRenderNode;
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CanvasContext* context = mContext;
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// From this point on anything in "this" is *UNSAFE TO ACCESS*
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if (canUnblockUiThread) {
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unblockUiThread();
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}
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drawRenderNode(context, renderNode.get(), &dirtyCopy);
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if (!canUnblockUiThread) {
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unblockUiThread();
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}
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}
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bool DrawFrameTask::syncFrameState() {
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ATRACE_CALL();
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bool hasFunctors = false;
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mContext->processLayerUpdates(&mLayers, &hasFunctors);
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TreeInfo info = {0};
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mRenderNode->prepareTree(info);
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hasFunctors |= info.hasFunctors;
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return !hasFunctors;
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}
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void DrawFrameTask::unblockUiThread() {
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AutoMutex _lock(mLock);
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mSignal.signal();
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}
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void DrawFrameTask::drawRenderNode(CanvasContext* context, RenderNode* renderNode, Rect* dirty) {
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ATRACE_CALL();
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if (dirty->bottom == -1 && dirty->left == -1
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&& dirty->top == -1 && dirty->right == -1) {
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dirty = 0;
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}
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context->drawDisplayList(renderNode, dirty);
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}
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} /* namespace renderthread */
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} /* namespace uirenderer */
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} /* namespace android */
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