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80 lines
2.7 KiB
C++
80 lines
2.7 KiB
C++
// Copyright 2013 The Flutter Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#define FML_USED_ON_EMBEDDER
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#include "flutter/shell/common/shell_test.h"
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#include "flutter/flow/layers/layer_tree.h"
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#include "flutter/flow/layers/transform_layer.h"
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#include "flutter/fml/make_copyable.h"
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#include "flutter/fml/mapping.h"
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#include "flutter/runtime/dart_vm.h"
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#include "flutter/testing/testing.h"
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namespace flutter {
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namespace testing {
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void ShellTestVsyncClock::SimulateVSync() {
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std::scoped_lock lock(mutex_);
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if (vsync_issued_ >= vsync_promised_.size()) {
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vsync_promised_.emplace_back();
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}
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FML_CHECK(vsync_issued_ < vsync_promised_.size());
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vsync_promised_[vsync_issued_].set_value(vsync_issued_);
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vsync_issued_ += 1;
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}
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std::future<int> ShellTestVsyncClock::NextVSync() {
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std::scoped_lock lock(mutex_);
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vsync_promised_.emplace_back();
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return vsync_promised_.back().get_future();
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}
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void ShellTestVsyncWaiter::AwaitVSync() {
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FML_DCHECK(task_runners_.GetUITaskRunner()->RunsTasksOnCurrentThread());
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auto vsync_future = clock_->NextVSync();
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auto async_wait = std::async([&vsync_future, this]() {
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vsync_future.wait();
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// Post the `FireCallback` to the Platform thread so earlier Platform tasks
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// (specifically, the `VSyncFlush` call) will be finished before
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// `FireCallback` is executed. This is only needed for our unit tests.
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//
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// Without this, the repeated VSYNC signals in `VSyncFlush` may start both
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// the current frame in the UI thread and the next frame in the secondary
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// callback (both of them are waiting for VSYNCs). That breaks the unit
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// test's assumption that each frame's VSYNC must be issued by different
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// `VSyncFlush` call (which resets the `will_draw_new_frame` bit).
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//
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// For example, HandlesActualIphoneXsInputEvents will fail without this.
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task_runners_.GetPlatformTaskRunner()->PostTask([this]() {
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FireCallback(fml::TimePoint::Now(), fml::TimePoint::Now());
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});
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});
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}
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void ConstantFiringVsyncWaiter::AwaitVSync() {
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FML_DCHECK(task_runners_.GetUITaskRunner()->RunsTasksOnCurrentThread());
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auto async_wait = std::async([this]() {
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task_runners_.GetPlatformTaskRunner()->PostTask(
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[this]() { FireCallback(kFrameBeginTime, kFrameTargetTime); });
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});
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}
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TestRefreshRateReporter::TestRefreshRateReporter(double refresh_rate)
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: refresh_rate_(refresh_rate) {}
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void TestRefreshRateReporter::UpdateRefreshRate(double refresh_rate) {
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refresh_rate_ = refresh_rate;
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}
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double TestRefreshRateReporter::GetRefreshRate() const {
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return refresh_rate_;
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}
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} // namespace testing
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} // namespace flutter
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