void CanvasContext::draw() {
LOG_ALWAYS_FATAL_IF(!mCanvas || mEglSurface == EGL_NO_SURFACE,
"drawRenderNode called on a context with no canvas or surface!");
SkRect dirty;
mDamageAccumulator.finish(&dirty);
// TODO: Re-enable after figuring out cause of b/22592975
// if (dirty.isEmpty() && Properties::skipEmptyFrames) {
// mCurrentFrameInfo->addFlag(FrameInfoFlags::SkippedFrame);
// return;
// }
mCurrentFrameInfo->markIssueDrawCommandsStart();
EGLint width, height;
mEglManager.beginFrame(mEglSurface, &width, &height);
if (width != mCanvas->getViewportWidth() || height != mCanvas->getViewportHeight()) {
mCanvas->setViewport(width, height);
dirty.setEmpty();
} else if (!mBufferPreserved || mHaveNewSurface) {
dirty.setEmpty();
} else {
if (!dirty.isEmpty() && !dirty.intersect(0, 0, width, height)) {
ALOGW("Dirty " RECT_STRING " doesn't intersect with 0 0 %d %d ?",
SK_RECT_ARGS(dirty), width, height);
dirty.setEmpty();
}
profiler().unionDirty(&dirty);
}
if (!dirty.isEmpty()) {
mCanvas->prepareDirty(dirty.fLeft, dirty.fTop,
dirty.fRight, dirty.fBottom, mOpaque);
} else {
mCanvas->prepare(mOpaque);
}
Rect outBounds;
mCanvas->drawRenderNode(mRootRenderNode.get(), outBounds);
profiler().draw(mCanvas);
bool drew = mCanvas->finish();
// Even if we decided to cancel the frame, from the perspective of jank
// metrics the frame was swapped at this point
mCurrentFrameInfo->markSwapBuffers();
if (drew) {
swapBuffers(dirty, width, height);
}
// TODO: Use a fence for real completion?
mCurrentFrameInfo->markFrameCompleted();
mJankTracker.addFrame(*mCurrentFrameInfo);
mRenderThread.jankTracker().addFrame(*mCurrentFrameInfo);
}
void CanvasContext::draw() {
LOG_ALWAYS_FATAL_IF(!mCanvas || mEglSurface == EGL_NO_SURFACE,
"drawRenderNode called on a context with no canvas or surface!");
profiler().markPlaybackStart();
SkRect dirty;
mDamageAccumulator.finish(&dirty);
EGLint width, height;
mEglManager.beginFrame(mEglSurface, &width, &height);
if (width != mCanvas->getViewportWidth() || height != mCanvas->getViewportHeight()) {
mCanvas->setViewport(width, height);
dirty.setEmpty();
} else if (!mDirtyRegionsEnabled || mHaveNewSurface) {
dirty.setEmpty();
} else {
if (!dirty.isEmpty() && !dirty.intersect(0, 0, width, height)) {
ALOGW("Dirty " RECT_STRING " doesn't intersect with 0 0 %d %d ?",
SK_RECT_ARGS(dirty), width, height);
dirty.setEmpty();
}
profiler().unionDirty(&dirty);
}
status_t status;
if (!dirty.isEmpty()) {
status = mCanvas->prepareDirty(dirty.fLeft, dirty.fTop,
dirty.fRight, dirty.fBottom, mOpaque);
} else {
status = mCanvas->prepare(mOpaque);
}
Rect outBounds;
status |= mCanvas->drawRenderNode(mRootRenderNode.get(), outBounds);
profiler().draw(mCanvas);
mCanvas->finish();
profiler().markPlaybackEnd();
if (status & DrawGlInfo::kStatusDrew) {
swapBuffers();
}
profiler().finishFrame();
}
