40 lines
2.2 KiB
Diff
40 lines
2.2 KiB
Diff
From: uazo <uazo@users.noreply.github.com>
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Date: Mon, 3 Oct 2022 09:39:07 +0000
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Subject: Clamp time resolution in requestAnimationFrame
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Aligns requestAnimationFrame's WebWorker callback to the W3C specification
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See https://bugs.chromium.org/p/chromium/issues/detail?id=1236113
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Original License: GPL-2.0-or-later - https://spdx.org/licenses/GPL-2.0-or-later.html
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License: GPL-3.0-only - https://spdx.org/licenses/GPL-3.0-only.html
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---
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.../animation_frame/worker_animation_frame_provider.cc | 8 +++++++-
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1 file changed, 7 insertions(+), 1 deletion(-)
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diff --git a/third_party/blink/renderer/core/animation_frame/worker_animation_frame_provider.cc b/third_party/blink/renderer/core/animation_frame/worker_animation_frame_provider.cc
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--- a/third_party/blink/renderer/core/animation_frame/worker_animation_frame_provider.cc
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+++ b/third_party/blink/renderer/core/animation_frame/worker_animation_frame_provider.cc
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@@ -7,6 +7,8 @@
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#include "base/trace_event/trace_event.h"
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#include "third_party/blink/renderer/core/execution_context/agent.h"
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#include "third_party/blink/renderer/core/offscreencanvas/offscreen_canvas.h"
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+#include "third_party/blink/renderer/core/workers/worker_global_scope.h"
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+#include "third_party/blink/renderer/platform/wtf/casting.h"
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#include "third_party/blink/renderer/core/timing/worker_global_scope_performance.h"
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#include "third_party/blink/renderer/platform/scheduler/public/event_loop.h"
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#include "third_party/blink/renderer/platform/wtf/cross_thread_functional.h"
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@@ -63,7 +65,11 @@ void WorkerAnimationFrameProvider::BeginFrame(const viz::BeginFrameArgs& args) {
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}
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}
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- double time = (args.frame_time - base::TimeTicks()).InMillisecondsF();
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+ auto* global_scope = DynamicTo<WorkerGlobalScope>(provider->context_.Get());
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+ DCHECK(global_scope);
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+ double time = Performance::ClampTimeResolution(
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+ args.frame_time - global_scope->TimeOrigin(),
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+ provider->context_->CrossOriginIsolatedCapability());
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provider->callback_collection_.ExecuteFrameCallbacks(time, time);
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}
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provider->begin_frame_provider_->FinishBeginFrame(args);
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--
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2.25.1
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