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osr: Fix GPU process crash with SendExternalBeginFrame (see issue #2800) 

Fixes the following error:
Check failed: !pending_frame_callback_. Got overlapping IssueExternalBeginFrame

To test:
Run `cefclient --off-screen-rendering-enabled --external-begin-frame-enabled`
on Windows without crashing.
This commit is contained in:
Marshall Greenblatt 2021-10-28 15:11:22 -04:00
parent fae1402a6e
commit 3a2a22f30d
2 changed files with 12 additions and 3 deletions
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14
libcef/browser/osr/render_widget_host_view_osr.cc
View File

@ -910,7 +910,10 @@ void CefRenderWidgetHostViewOSR::DidNavigate() {
void CefRenderWidgetHostViewOSR::OnFrameComplete(
const viz::BeginFrameAck& ack) {
// TODO(cef): is there something we need to track with this notification?
DCHECK(begin_frame_pending_);
DCHECK_EQ(begin_frame_source_.source_id(), ack.frame_id.source_id);
DCHECK_EQ(begin_frame_number_, ack.frame_id.sequence_number);
begin_frame_pending_ = false;
}
void CefRenderWidgetHostViewOSR::OnRenderFrameMetadataChangedAfterActivation(
@ -1047,17 +1050,20 @@ void CefRenderWidgetHostViewOSR::Invalidate(
void CefRenderWidgetHostViewOSR::SendExternalBeginFrame() {
DCHECK(external_begin_frame_enabled_);
if (begin_frame_pending_)
return;
begin_frame_pending_ = true;
base::TimeTicks frame_time = base::TimeTicks::Now();
base::TimeTicks deadline = base::TimeTicks();
base::TimeDelta interval = viz::BeginFrameArgs::DefaultInterval();
viz::BeginFrameArgs begin_frame_args = viz::BeginFrameArgs::Create(
BEGINFRAME_FROM_HERE, begin_frame_source_.source_id(),
begin_frame_number_, frame_time, deadline, interval,
++begin_frame_number_, frame_time, deadline, interval,
viz::BeginFrameArgs::NORMAL);
DCHECK(begin_frame_args.IsValid());
begin_frame_number_++;
if (render_widget_host_)
render_widget_host_->ProgressFlingIfNeeded(frame_time);
@ -1067,6 +1073,8 @@ void CefRenderWidgetHostViewOSR::SendExternalBeginFrame() {
begin_frame_args, /* force= */ true,
base::BindOnce(&CefRenderWidgetHostViewOSR::OnFrameComplete,
weak_ptr_factory_.GetWeakPtr()));
} else {
begin_frame_pending_ = false;
}
if (!IsPopupWidget() && popup_host_view_) {

1
libcef/browser/osr/render_widget_host_view_osr.h
View File

@ -355,6 +355,7 @@ class CefRenderWidgetHostViewOSR
// Provides |source_id| for BeginFrameArgs that we create.
viz::StubBeginFrameSource begin_frame_source_;
uint64_t begin_frame_number_ = viz::BeginFrameArgs::kStartingFrameNumber;
bool begin_frame_pending_ = false;
bool sync_frame_rate_ = false;
bool external_begin_frame_enabled_ = false;