mirror of
https://github.com/flutter/flutter.git
synced 2026-02-20 02:29:02 +08:00
052d65cc14
After an application is suspended and the GrContext associated with the Flutter view is destroyed, the raster cache still contains images tied to the defunct context. The SkyShell process will crash if these images are used after the application resumes.
57 lines
1.6 KiB
C++
57 lines
1.6 KiB
C++
// Copyright 2015 The Chromium Authors. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style license that can be
|
|
// found in the LICENSE file.
|
|
|
|
#include "flow/paint_context.h"
|
|
|
|
#include "base/logging.h"
|
|
#include "third_party/skia/include/core/SkCanvas.h"
|
|
|
|
namespace flow {
|
|
|
|
PaintContext::PaintContext() {
|
|
}
|
|
|
|
void PaintContext::beginFrame(ScopedFrame& frame, bool enableInstrumentation) {
|
|
if (enableInstrumentation) {
|
|
frame_count_.increment();
|
|
frame_time_.start();
|
|
}
|
|
}
|
|
|
|
void PaintContext::endFrame(ScopedFrame& frame, bool enableInstrumentation) {
|
|
raster_cache_.SweepAfterFrame();
|
|
if (enableInstrumentation) {
|
|
frame_time_.stop();
|
|
}
|
|
}
|
|
|
|
PaintContext::ScopedFrame PaintContext::AcquireFrame(
|
|
GrContext* gr_context, SkCanvas& canvas, bool instrumentation_enabled) {
|
|
return ScopedFrame(*this, gr_context, canvas, instrumentation_enabled);
|
|
}
|
|
|
|
PaintContext::ScopedFrame::ScopedFrame(PaintContext& context,
|
|
GrContext* gr_context,
|
|
SkCanvas& canvas,
|
|
bool instrumentation_enabled)
|
|
: context_(context), gr_context_(gr_context), canvas_(&canvas),
|
|
instrumentation_enabled_(instrumentation_enabled) {
|
|
context_.beginFrame(*this, instrumentation_enabled_);
|
|
}
|
|
|
|
PaintContext::ScopedFrame::ScopedFrame(ScopedFrame&& frame) = default;
|
|
|
|
PaintContext::ScopedFrame::~ScopedFrame() {
|
|
context_.endFrame(*this, instrumentation_enabled_);
|
|
}
|
|
|
|
PaintContext::~PaintContext() {
|
|
}
|
|
|
|
void PaintContext::OnGrContextDestroyed() {
|
|
raster_cache_.Clear();
|
|
}
|
|
|
|
} // namespace flow
|