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chromium / codesearch / chromium / src / refs/tags/42.0.2311.7 / . / cc / scheduler / scheduler_unittest.cc
blob: 50cc846c44114edffbc07dfdc6f0faf117b95299 [file] [log] [blame]
// Copyright 2011 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 "cc/scheduler/scheduler.h"
#include <string>
#include <vector>
#include "base/logging.h"
#include "base/memory/scoped_vector.h"
#include "base/message_loop/message_loop.h"
#include "base/power_monitor/power_monitor.h"
#include "base/power_monitor/power_monitor_source.h"
#include "base/run_loop.h"
#include "base/time/time.h"
#include "base/trace_event/trace_event.h"
#include "cc/test/begin_frame_args_test.h"
#include "cc/test/ordered_simple_task_runner.h"
#include "cc/test/scheduler_test_common.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
#define EXPECT_ACTION(action, client, action_index, expected_num_actions) \
do { \
EXPECT_EQ(expected_num_actions, client->num_actions_()); \
if (action_index >= 0) { \
ASSERT_LT(action_index, client->num_actions_()) << scheduler_.get(); \
EXPECT_STREQ(action, client->Action(action_index)); \
} \
for (int i = expected_num_actions; i < client->num_actions_(); ++i) \
ADD_FAILURE() << "Unexpected action: " << client->Action(i) \
<< " with state:\n" << client->StateForAction(i); \
} while (false)
#define EXPECT_NO_ACTION(client) EXPECT_ACTION("", client, -1, 0)
#define EXPECT_SINGLE_ACTION(action, client) \
EXPECT_ACTION(action, client, 0, 1)
#define EXPECT_SCOPED(statements) \
{ \
SCOPED_TRACE(""); \
statements; \
}
namespace cc {
namespace {
class FakeSchedulerClient : public SchedulerClient {
public:
FakeSchedulerClient()
: automatic_swap_ack_(true),
begin_frame_is_sent_to_children_(false),
scheduler_(nullptr) {
Reset();
}
void Reset() {
actions_.clear();
states_.clear();
draw_will_happen_ = true;
swap_will_happen_if_draw_happens_ = true;
num_draws_ = 0;
log_anticipated_draw_time_change_ = false;
begin_frame_is_sent_to_children_ = false;
}
void set_scheduler(TestScheduler* scheduler) { scheduler_ = scheduler; }
// Most tests don't care about DidAnticipatedDrawTimeChange, so only record it
// for tests that do.
void set_log_anticipated_draw_time_change(bool log) {
log_anticipated_draw_time_change_ = log;
}
bool needs_begin_frames() {
return scheduler_->frame_source().NeedsBeginFrames();
}
int num_draws() const { return num_draws_; }
int num_actions_() const { return static_cast<int>(actions_.size()); }
const char* Action(int i) const { return actions_[i]; }
std::string StateForAction(int i) const { return states_[i]->ToString(); }
base::TimeTicks posted_begin_impl_frame_deadline() const {
return posted_begin_impl_frame_deadline_;
}
int ActionIndex(const char* action) const {
for (size_t i = 0; i < actions_.size(); i++)
if (!strcmp(actions_[i], action))
return i;
return -1;
}
bool HasAction(const char* action) const {
return ActionIndex(action) >= 0;
}
void SetDrawWillHappen(bool draw_will_happen) {
draw_will_happen_ = draw_will_happen;
}
void SetSwapWillHappenIfDrawHappens(bool swap_will_happen_if_draw_happens) {
swap_will_happen_if_draw_happens_ = swap_will_happen_if_draw_happens;
}
void SetAutomaticSwapAck(bool automatic_swap_ack) {
automatic_swap_ack_ = automatic_swap_ack;
}
// SchedulerClient implementation.
void WillBeginImplFrame(const BeginFrameArgs& args) override {
PushAction("WillBeginImplFrame");
}
void ScheduledActionSendBeginMainFrame() override {
PushAction("ScheduledActionSendBeginMainFrame");
}
void ScheduledActionAnimate() override {
PushAction("ScheduledActionAnimate");
}
DrawResult ScheduledActionDrawAndSwapIfPossible() override {
PushAction("ScheduledActionDrawAndSwapIfPossible");
num_draws_++;
DrawResult result =
draw_will_happen_ ? DRAW_SUCCESS : DRAW_ABORTED_CHECKERBOARD_ANIMATIONS;
bool swap_will_happen =
draw_will_happen_ && swap_will_happen_if_draw_happens_;
if (swap_will_happen) {
scheduler_->DidSwapBuffers();
if (automatic_swap_ack_)
scheduler_->DidSwapBuffersComplete();
}
return result;
}
DrawResult ScheduledActionDrawAndSwapForced() override {
PushAction("ScheduledActionDrawAndSwapForced");
return DRAW_SUCCESS;
}
void ScheduledActionCommit() override { PushAction("ScheduledActionCommit"); }
void ScheduledActionActivateSyncTree() override {
PushAction("ScheduledActionActivateSyncTree");
}
void ScheduledActionBeginOutputSurfaceCreation() override {
PushAction("ScheduledActionBeginOutputSurfaceCreation");
}
void ScheduledActionPrepareTiles() override {
PushAction("ScheduledActionPrepareTiles");
}
void DidAnticipatedDrawTimeChange(base::TimeTicks) override {
if (log_anticipated_draw_time_change_)
PushAction("DidAnticipatedDrawTimeChange");
}
base::TimeDelta DrawDurationEstimate() override { return base::TimeDelta(); }
base::TimeDelta BeginMainFrameToCommitDurationEstimate() override {
return base::TimeDelta();
}
base::TimeDelta CommitToActivateDurationEstimate() override {
return base::TimeDelta();
}
void DidBeginImplFrameDeadline() override {}
void SendBeginFramesToChildren(const BeginFrameArgs& args) override {
begin_frame_is_sent_to_children_ = true;
}
void SendBeginMainFrameNotExpectedSoon() override {
PushAction("SendBeginMainFrameNotExpectedSoon");
}
base::Callback<bool(void)> ImplFrameDeadlinePending(bool state) {
return base::Bind(&FakeSchedulerClient::ImplFrameDeadlinePendingCallback,
base::Unretained(this),
state);
}
bool begin_frame_is_sent_to_children() const {
return begin_frame_is_sent_to_children_;
}
void PushAction(const char* description) {
actions_.push_back(description);
states_.push_back(scheduler_->AsValue());
}
protected:
bool ImplFrameDeadlinePendingCallback(bool state) {
return scheduler_->BeginImplFrameDeadlinePending() == state;
}
bool draw_will_happen_;
bool swap_will_happen_if_draw_happens_;
bool automatic_swap_ack_;
int num_draws_;
bool log_anticipated_draw_time_change_;
bool begin_frame_is_sent_to_children_;
base::TimeTicks posted_begin_impl_frame_deadline_;
std::vector<const char*> actions_;
std::vector<scoped_refptr<base::trace_event::ConvertableToTraceFormat>>
states_;
TestScheduler* scheduler_;
};
class FakePowerMonitorSource : public base::PowerMonitorSource {
public:
FakePowerMonitorSource() {}
~FakePowerMonitorSource() override {}
void GeneratePowerStateEvent(bool on_battery_power) {
on_battery_power_impl_ = on_battery_power;
ProcessPowerEvent(POWER_STATE_EVENT);
base::MessageLoop::current()->RunUntilIdle();
}
bool IsOnBatteryPowerImpl() override { return on_battery_power_impl_; }
private:
bool on_battery_power_impl_;
};
class FakeExternalBeginFrameSource : public BeginFrameSourceMixIn {
public:
explicit FakeExternalBeginFrameSource(FakeSchedulerClient* client)
: client_(client) {}
~FakeExternalBeginFrameSource() override {}
void OnNeedsBeginFramesChange(bool needs_begin_frames) override {
if (needs_begin_frames) {
client_->PushAction("SetNeedsBeginFrames(true)");
} else {
client_->PushAction("SetNeedsBeginFrames(false)");
}
}
void TestOnBeginFrame(const BeginFrameArgs& args) {
return CallOnBeginFrame(args);
}
private:
FakeSchedulerClient* client_;
};
class SchedulerTest : public testing::Test {
public:
SchedulerTest()
: now_src_(TestNowSource::Create()),
task_runner_(new OrderedSimpleTaskRunner(now_src_, true)),
fake_external_begin_frame_source_(nullptr),
fake_power_monitor_source_(new FakePowerMonitorSource),
power_monitor_(make_scoped_ptr<base::PowerMonitorSource>(
fake_power_monitor_source_)) {
// A bunch of tests require Now() to be > BeginFrameArgs::DefaultInterval()
now_src_->AdvanceNow(base::TimeDelta::FromMilliseconds(100));
// Fail if we need to run 100 tasks in a row.
task_runner_->SetRunTaskLimit(100);
}
~SchedulerTest() override {}
protected:
TestScheduler* CreateScheduler() {
scoped_ptr<FakeExternalBeginFrameSource> fake_external_begin_frame_source;
if (scheduler_settings_.use_external_begin_frame_source) {
fake_external_begin_frame_source.reset(
new FakeExternalBeginFrameSource(client_.get()));
fake_external_begin_frame_source_ =
fake_external_begin_frame_source.get();
}
scheduler_ = TestScheduler::Create(
now_src_, client_.get(), scheduler_settings_, 0, task_runner_,
&power_monitor_, fake_external_begin_frame_source.Pass());
DCHECK(scheduler_);
client_->set_scheduler(scheduler_.get());
return scheduler_.get();
}
void CreateSchedulerAndInitSurface() {
CreateScheduler();
EXPECT_SCOPED(InitializeOutputSurfaceAndFirstCommit());
}
void SetUpScheduler(bool initSurface) {
SetUpScheduler(make_scoped_ptr(new FakeSchedulerClient), initSurface);
}
void SetUpScheduler(scoped_ptr<FakeSchedulerClient> client,
bool initSurface) {
client_ = client.Pass();
if (initSurface)
CreateSchedulerAndInitSurface();
else
CreateScheduler();
}
OrderedSimpleTaskRunner& task_runner() { return *task_runner_; }
TestNowSource* now_src() { return now_src_.get(); }
// As this function contains EXPECT macros, to allow debugging it should be
// called inside EXPECT_SCOPED like so;
// EXPECT_SCOPED(client.InitializeOutputSurfaceAndFirstCommit(scheduler));
void InitializeOutputSurfaceAndFirstCommit() {
TRACE_EVENT0("cc",
"SchedulerUnitTest::InitializeOutputSurfaceAndFirstCommit");
DCHECK(scheduler_);
// Check the client doesn't have any actions queued when calling this
// function.
EXPECT_NO_ACTION(client_);
EXPECT_FALSE(client_->needs_begin_frames());
// Start the initial output surface creation.
EXPECT_FALSE(scheduler_->CanStart());
scheduler_->SetCanStart();
scheduler_->SetVisible(true);
scheduler_->SetCanDraw(true);
EXPECT_SINGLE_ACTION("ScheduledActionBeginOutputSurfaceCreation", client_);
client_->Reset();
// We don't see anything happening until the first impl frame.
scheduler_->DidCreateAndInitializeOutputSurface();
scheduler_->SetNeedsCommit();
EXPECT_TRUE(client_->needs_begin_frames());
EXPECT_FALSE(scheduler_->BeginImplFrameDeadlinePending());
client_->Reset();
{
SCOPED_TRACE("Do first frame to commit after initialize.");
AdvanceFrame();
scheduler_->NotifyBeginMainFrameStarted();
scheduler_->NotifyReadyToCommitThenActivateIfNeeded();
// Run the posted deadline task.
EXPECT_TRUE(scheduler_->BeginImplFrameDeadlinePending());
task_runner_->RunTasksWhile(client_->ImplFrameDeadlinePending(true));
EXPECT_FALSE(scheduler_->BeginImplFrameDeadlinePending());
EXPECT_FALSE(scheduler_->CommitPending());
}
client_->Reset();
{
SCOPED_TRACE(
"Run second frame so Scheduler calls SetNeedsBeginFrame(false).");
AdvanceFrame();
// Run the posted deadline task.
EXPECT_TRUE(scheduler_->BeginImplFrameDeadlinePending());
task_runner_->RunTasksWhile(client_->ImplFrameDeadlinePending(true));
EXPECT_FALSE(scheduler_->BeginImplFrameDeadlinePending());
}
EXPECT_FALSE(client_->needs_begin_frames());
client_->Reset();
}
// As this function contains EXPECT macros, to allow debugging it should be
// called inside EXPECT_SCOPED like so;
// EXPECT_SCOPED(client.AdvanceFrame());
void AdvanceFrame() {
TRACE_EVENT0(TRACE_DISABLED_BY_DEFAULT("cc.debug.scheduler.frames"),
"FakeSchedulerClient::AdvanceFrame");
// Consume any previous deadline first, if no deadline is currently
// pending, ImplFrameDeadlinePending will return false straight away and we
// will run no tasks.
task_runner_->RunTasksWhile(client_->ImplFrameDeadlinePending(true));
EXPECT_FALSE(scheduler_->BeginImplFrameDeadlinePending());
// Send the next BeginFrame message if using an external source, otherwise
// it will be already in the task queue.
if (scheduler_->settings().use_external_begin_frame_source &&
scheduler_->FrameProductionThrottled()) {
SendNextBeginFrame();
EXPECT_TRUE(scheduler_->BeginImplFrameDeadlinePending());
}
// Then run tasks until new deadline is scheduled.
EXPECT_TRUE(
task_runner_->RunTasksWhile(client_->ImplFrameDeadlinePending(false)));
EXPECT_TRUE(scheduler_->BeginImplFrameDeadlinePending());
}
void SendNextBeginFrame() {
DCHECK(scheduler_->settings().use_external_begin_frame_source);
// Creep the time forward so that any BeginFrameArgs is not equal to the
// last one otherwise we violate the BeginFrameSource contract.
now_src_->AdvanceNow(BeginFrameArgs::DefaultInterval());
fake_external_begin_frame_source_->TestOnBeginFrame(
CreateBeginFrameArgsForTesting(BEGINFRAME_FROM_HERE, now_src()));
}
base::PowerMonitor* PowerMonitor() { return &power_monitor_; }
FakePowerMonitorSource* PowerMonitorSource() {
return fake_power_monitor_source_;
}
FakeExternalBeginFrameSource* fake_external_begin_frame_source() const {
return fake_external_begin_frame_source_;
}
void MainFrameInHighLatencyMode(
int64 begin_main_frame_to_commit_estimate_in_ms,
int64 commit_to_activate_estimate_in_ms,
bool impl_latency_takes_priority,
bool should_send_begin_main_frame);
void BeginFramesNotFromClient(bool use_external_begin_frame_source,
bool throttle_frame_production);
void BeginFramesNotFromClient_SwapThrottled(
bool use_external_begin_frame_source,
bool throttle_frame_production);
void DidLoseOutputSurfaceAfterBeginFrameStartedWithHighLatency(
bool impl_side_painting);
void DidLoseOutputSurfaceAfterReadyToCommit(bool impl_side_painting);
scoped_refptr<TestNowSource> now_src_;
scoped_refptr<OrderedSimpleTaskRunner> task_runner_;
FakeExternalBeginFrameSource* fake_external_begin_frame_source_;
FakePowerMonitorSource* fake_power_monitor_source_;
base::PowerMonitor power_monitor_;
SchedulerSettings scheduler_settings_;
scoped_ptr<FakeSchedulerClient> client_;
scoped_ptr<TestScheduler> scheduler_;
};
TEST_F(SchedulerTest, InitializeOutputSurfaceDoesNotBeginImplFrame) {
scheduler_settings_.use_external_begin_frame_source = true;
SetUpScheduler(false);
scheduler_->SetCanStart();
scheduler_->SetVisible(true);
scheduler_->SetCanDraw(true);
EXPECT_SINGLE_ACTION("ScheduledActionBeginOutputSurfaceCreation", client_);
client_->Reset();
scheduler_->DidCreateAndInitializeOutputSurface();
EXPECT_NO_ACTION(client_);
}
TEST_F(SchedulerTest, SendBeginFramesToChildren) {
scheduler_settings_.use_external_begin_frame_source = true;
scheduler_settings_.forward_begin_frames_to_children = true;
SetUpScheduler(true);
EXPECT_FALSE(client_->begin_frame_is_sent_to_children());
scheduler_->SetNeedsCommit();
EXPECT_SINGLE_ACTION("SetNeedsBeginFrames(true)", client_);
EXPECT_TRUE(client_->needs_begin_frames());
scheduler_->SetChildrenNeedBeginFrames(true);
client_->Reset();
EXPECT_SCOPED(AdvanceFrame());
EXPECT_TRUE(client_->begin_frame_is_sent_to_children());
EXPECT_TRUE(scheduler_->BeginImplFrameDeadlinePending());
EXPECT_ACTION("WillBeginImplFrame", client_, 0, 2);
EXPECT_ACTION("ScheduledActionSendBeginMainFrame", client_, 1, 2);
EXPECT_TRUE(client_->needs_begin_frames());
}
TEST_F(SchedulerTest, SendBeginFramesToChildrenWithoutCommit) {
scheduler_settings_.use_external_begin_frame_source = true;
scheduler_settings_.forward_begin_frames_to_children = true;
SetUpScheduler(true);
EXPECT_FALSE(client_->needs_begin_frames());
scheduler_->SetChildrenNeedBeginFrames(true);
EXPECT_SINGLE_ACTION("SetNeedsBeginFrames(true)", client_);
EXPECT_TRUE(client_->needs_begin_frames());
client_->Reset();
EXPECT_SCOPED(AdvanceFrame());
EXPECT_TRUE(client_->begin_frame_is_sent_to_children());
}
TEST_F(SchedulerTest, RequestCommit) {
scheduler_settings_.use_external_begin_frame_source = true;
SetUpScheduler(true);
// SetNeedsCommit should begin the frame on the next BeginImplFrame.
scheduler_->SetNeedsCommit();
EXPECT_SINGLE_ACTION("SetNeedsBeginFrames(true)", client_);
client_->Reset();
EXPECT_SCOPED(AdvanceFrame());
EXPECT_ACTION("WillBeginImplFrame", client_, 0, 2);
EXPECT_ACTION("ScheduledActionSendBeginMainFrame", client_, 1, 2);
EXPECT_TRUE(scheduler_->BeginImplFrameDeadlinePending());
EXPECT_TRUE(client_->needs_begin_frames());
client_->Reset();
// If we don't swap on the deadline, we wait for the next BeginFrame.
task_runner().RunPendingTasks(); // Run posted deadline.
EXPECT_NO_ACTION(client_);
EXPECT_FALSE(scheduler_->BeginImplFrameDeadlinePending());
EXPECT_TRUE(client_->needs_begin_frames());
client_->Reset();
// NotifyReadyToCommit should trigger the commit.
scheduler_->NotifyBeginMainFrameStarted();
scheduler_->NotifyReadyToCommit();
EXPECT_SINGLE_ACTION("ScheduledActionCommit", client_);
EXPECT_TRUE(client_->needs_begin_frames());
client_->Reset();
// BeginImplFrame should prepare the draw.
EXPECT_SCOPED(AdvanceFrame());
EXPECT_ACTION("WillBeginImplFrame", client_, 0, 2);
EXPECT_ACTION("ScheduledActionAnimate", client_, 1, 2);
EXPECT_TRUE(scheduler_->BeginImplFrameDeadlinePending());
EXPECT_TRUE(client_->needs_begin_frames());
client_->Reset();
// BeginImplFrame deadline should draw.
task_runner().RunPendingTasks(); // Run posted deadline.
EXPECT_ACTION("ScheduledActionDrawAndSwapIfPossible", client_, 0, 1);
EXPECT_FALSE(scheduler_->BeginImplFrameDeadlinePending());
EXPECT_TRUE(client_->needs_begin_frames());
client_->Reset();
// The following BeginImplFrame deadline should SetNeedsBeginFrame(false)
// to avoid excessive toggles.
EXPECT_SCOPED(AdvanceFrame());
EXPECT_SINGLE_ACTION("WillBeginImplFrame", client_);
EXPECT_TRUE(scheduler_->BeginImplFrameDeadlinePending());
client_->Reset();
task_runner().RunPendingTasks(); // Run posted deadline.
EXPECT_ACTION("SetNeedsBeginFrames(false)", client_, 0, 2);
EXPECT_ACTION("SendBeginMainFrameNotExpectedSoon", client_, 1, 2);
client_->Reset();
}
TEST_F(SchedulerTest, RequestCommitAfterSetDeferCommit) {
scheduler_settings_.use_external_begin_frame_source = true;
SetUpScheduler(true);
scheduler_->SetCanStart();
scheduler_->SetVisible(true);
scheduler_->SetCanDraw(true);
scheduler_->SetDeferCommits(true);
scheduler_->SetNeedsCommit();
EXPECT_SINGLE_ACTION("SetNeedsBeginFrames(true)", client_);
client_->Reset();
AdvanceFrame();
// BeginMainFrame is not sent during the defer commit is on.
EXPECT_SINGLE_ACTION("WillBeginImplFrame", client_);
client_->Reset();
task_runner().RunPendingTasks(); // Run posted deadline.
// There is no posted deadline.
EXPECT_NO_ACTION(client_);
EXPECT_TRUE(client_->needs_begin_frames());
client_->Reset();
scheduler_->SetDeferCommits(false);
EXPECT_NO_ACTION(client_);
// Start new BeginMainFrame after defer commit is off.
client_->Reset();
AdvanceFrame();
EXPECT_ACTION("WillBeginImplFrame", client_, 0, 2);
EXPECT_ACTION("ScheduledActionSendBeginMainFrame", client_, 1, 2);
EXPECT_TRUE(scheduler_->BeginImplFrameDeadlinePending());
}
TEST_F(SchedulerTest, DeferCommitWithRedraw) {
scheduler_settings_.use_external_begin_frame_source = true;
SetUpScheduler(true);
scheduler_->SetCanStart();
scheduler_->SetVisible(true);
scheduler_->SetCanDraw(true);
scheduler_->SetDeferCommits(true);
scheduler_->SetNeedsCommit();
EXPECT_SINGLE_ACTION("SetNeedsBeginFrames(true)", client_);
client_->Reset();
scheduler_->SetNeedsRedraw();
EXPECT_NO_ACTION(client_);
client_->Reset();
AdvanceFrame();
// BeginMainFrame is not sent during the defer commit is on.
EXPECT_ACTION("WillBeginImplFrame", client_, 0, 2);
EXPECT_ACTION("ScheduledActionAnimate", client_, 1, 2);
client_->Reset();
task_runner().RunPendingTasks(); // Run posted deadline.
EXPECT_SINGLE_ACTION("ScheduledActionDrawAndSwapIfPossible", client_);
EXPECT_FALSE(scheduler_->BeginImplFrameDeadlinePending());
EXPECT_TRUE(client_->needs_begin_frames());
client_->Reset();
AdvanceFrame();
EXPECT_SINGLE_ACTION("WillBeginImplFrame", client_);
}
TEST_F(SchedulerTest, RequestCommitAfterBeginMainFrameSent) {
scheduler_settings_.use_external_begin_frame_source = true;
SetUpScheduler(true);
// SetNeedsCommit should begin the frame.
scheduler_->SetNeedsCommit();
EXPECT_SINGLE_ACTION("SetNeedsBeginFrames(true)", client_);
client_->Reset();
EXPECT_SCOPED(AdvanceFrame());
EXPECT_ACTION("WillBeginImplFrame", client_, 0, 2);
EXPECT_ACTION("ScheduledActionSendBeginMainFrame", client_, 1, 2);
EXPECT_TRUE(scheduler_->BeginImplFrameDeadlinePending());
EXPECT_TRUE(client_->needs_begin_frames());
client_->Reset();
// Now SetNeedsCommit again. Calling here means we need a second commit.
scheduler_->SetNeedsCommit();
EXPECT_EQ(client_->num_actions_(), 0);
client_->Reset();
// Finish the first commit.
scheduler_->NotifyBeginMainFrameStarted();
scheduler_->NotifyReadyToCommit();
EXPECT_SINGLE_ACTION("ScheduledActionCommit", client_);
EXPECT_TRUE(scheduler_->BeginImplFrameDeadlinePending());
client_->Reset();
task_runner().RunPendingTasks(); // Run posted deadline.
EXPECT_ACTION("ScheduledActionAnimate", client_, 0, 2);
EXPECT_ACTION("ScheduledActionDrawAndSwapIfPossible", client_, 1, 2);
EXPECT_FALSE(scheduler_->BeginImplFrameDeadlinePending());
// Because we just swapped, the Scheduler should also request the next
// BeginImplFrame from the OutputSurface.
EXPECT_TRUE(client_->needs_begin_frames());
client_->Reset();
// Since another commit is needed, the next BeginImplFrame should initiate
// the second commit.
EXPECT_SCOPED(AdvanceFrame());
EXPECT_ACTION("WillBeginImplFrame", client_, 0, 2);
EXPECT_ACTION("ScheduledActionSendBeginMainFrame", client_, 1, 2);
EXPECT_TRUE(scheduler_->BeginImplFrameDeadlinePending());
client_->Reset();
// Finishing the commit before the deadline should post a new deadline task
// to trigger the deadline early.
scheduler_->NotifyBeginMainFrameStarted();
scheduler_->NotifyReadyToCommit();
EXPECT_SINGLE_ACTION("ScheduledActionCommit", client_);
EXPECT_TRUE(scheduler_->BeginImplFrameDeadlinePending());
client_->Reset();
task_runner().RunPendingTasks(); // Run posted deadline.
EXPECT_ACTION("ScheduledActionAnimate", client_, 0, 2);
EXPECT_ACTION("ScheduledActionDrawAndSwapIfPossible", client_, 1, 2);
EXPECT_FALSE(scheduler_->BeginImplFrameDeadlinePending());
EXPECT_TRUE(client_->needs_begin_frames());
client_->Reset();
// On the next BeginImplFrame, verify we go back to a quiescent state and
// no longer request BeginImplFrames.
EXPECT_SCOPED(AdvanceFrame());
task_runner().RunPendingTasks(); // Run posted deadline.
EXPECT_FALSE(client_->needs_begin_frames());
client_->Reset();
}
class SchedulerClientThatsetNeedsDrawInsideDraw : public FakeSchedulerClient {
public:
SchedulerClientThatsetNeedsDrawInsideDraw()
: FakeSchedulerClient(), request_redraws_(false) {}
void ScheduledActionSendBeginMainFrame() override {}
void SetRequestRedrawsInsideDraw(bool enable) { request_redraws_ = enable; }
DrawResult ScheduledActionDrawAndSwapIfPossible() override {
// Only SetNeedsRedraw the first time this is called
if (request_redraws_) {
scheduler_->SetNeedsRedraw();
}
return FakeSchedulerClient::ScheduledActionDrawAndSwapIfPossible();
}
DrawResult ScheduledActionDrawAndSwapForced() override {
NOTREACHED();
return DRAW_SUCCESS;
}
void ScheduledActionCommit() override {}
void DidAnticipatedDrawTimeChange(base::TimeTicks) override {}
private:
bool request_redraws_;
};
// Tests for two different situations:
// 1. the scheduler dropping SetNeedsRedraw requests that happen inside
// a ScheduledActionDrawAndSwap
// 2. the scheduler drawing twice inside a single tick
TEST_F(SchedulerTest, RequestRedrawInsideDraw) {
SchedulerClientThatsetNeedsDrawInsideDraw* client =
new SchedulerClientThatsetNeedsDrawInsideDraw;
scheduler_settings_.use_external_begin_frame_source = true;
SetUpScheduler(make_scoped_ptr(client).Pass(), true);
client->SetRequestRedrawsInsideDraw(true);
scheduler_->SetNeedsRedraw();
EXPECT_TRUE(scheduler_->RedrawPending());
EXPECT_TRUE(client->needs_begin_frames());
EXPECT_EQ(0, client->num_draws());
EXPECT_SCOPED(AdvanceFrame());
task_runner().RunPendingTasks(); // Run posted deadline.
EXPECT_EQ(1, client->num_draws());
EXPECT_TRUE(scheduler_->RedrawPending());
EXPECT_TRUE(client->needs_begin_frames());
client->SetRequestRedrawsInsideDraw(false);
EXPECT_SCOPED(AdvanceFrame());
task_runner().RunPendingTasks(); // Run posted deadline.
EXPECT_EQ(2, client_->num_draws());
EXPECT_FALSE(scheduler_->RedrawPending());
EXPECT_TRUE(client->needs_begin_frames());
// We stop requesting BeginImplFrames after a BeginImplFrame where we don't
// swap.
EXPECT_SCOPED(AdvanceFrame());
task_runner().RunPendingTasks(); // Run posted deadline.
EXPECT_EQ(2, client->num_draws());
EXPECT_FALSE(scheduler_->RedrawPending());
EXPECT_FALSE(client->needs_begin_frames());
}
// Test that requesting redraw inside a failed draw doesn't lose the request.
TEST_F(SchedulerTest, RequestRedrawInsideFailedDraw) {
SchedulerClientThatsetNeedsDrawInsideDraw* client =
new SchedulerClientThatsetNeedsDrawInsideDraw;
scheduler_settings_.use_external_begin_frame_source = true;
SetUpScheduler(make_scoped_ptr(client).Pass(), true);
client->SetRequestRedrawsInsideDraw(true);
client->SetDrawWillHappen(false);
scheduler_->SetNeedsRedraw();
EXPECT_TRUE(scheduler_->RedrawPending());
EXPECT_TRUE(client->needs_begin_frames());
EXPECT_EQ(0, client->num_draws());
// Fail the draw.
EXPECT_SCOPED(AdvanceFrame());
task_runner().RunPendingTasks(); // Run posted deadline.
EXPECT_EQ(1, client->num_draws());
// We have a commit pending and the draw failed, and we didn't lose the redraw
// request.
EXPECT_TRUE(scheduler_->CommitPending());
EXPECT_TRUE(scheduler_->RedrawPending());
EXPECT_TRUE(client->needs_begin_frames());
client->SetRequestRedrawsInsideDraw(false);
// Fail the draw again.
EXPECT_SCOPED(AdvanceFrame());
task_runner().RunPendingTasks(); // Run posted deadline.
EXPECT_EQ(2, client->num_draws());
EXPECT_TRUE(scheduler_->CommitPending());
EXPECT_TRUE(scheduler_->RedrawPending());
EXPECT_TRUE(client->needs_begin_frames());
// Draw successfully.
client->SetDrawWillHappen(true);
EXPECT_SCOPED(AdvanceFrame());
task_runner().RunPendingTasks(); // Run posted deadline.
EXPECT_EQ(3, client->num_draws());
EXPECT_TRUE(scheduler_->CommitPending());
EXPECT_FALSE(scheduler_->RedrawPending());
EXPECT_TRUE(client->needs_begin_frames());
}
class SchedulerClientThatSetNeedsCommitInsideDraw : public FakeSchedulerClient {
public:
SchedulerClientThatSetNeedsCommitInsideDraw()
: set_needs_commit_on_next_draw_(false) {}
void ScheduledActionSendBeginMainFrame() override {}
DrawResult ScheduledActionDrawAndSwapIfPossible() override {
// Only SetNeedsCommit the first time this is called
if (set_needs_commit_on_next_draw_) {
scheduler_->SetNeedsCommit();
set_needs_commit_on_next_draw_ = false;
}
return FakeSchedulerClient::ScheduledActionDrawAndSwapIfPossible();
}
DrawResult ScheduledActionDrawAndSwapForced() override {
NOTREACHED();
return DRAW_SUCCESS;
}
void ScheduledActionCommit() override {}
void DidAnticipatedDrawTimeChange(base::TimeTicks) override {}
void SetNeedsCommitOnNextDraw() { set_needs_commit_on_next_draw_ = true; }
private:
bool set_needs_commit_on_next_draw_;
};
// Tests for the scheduler infinite-looping on SetNeedsCommit requests that
// happen inside a ScheduledActionDrawAndSwap
TEST_F(SchedulerTest, RequestCommitInsideDraw) {
SchedulerClientThatSetNeedsCommitInsideDraw* client =
new SchedulerClientThatSetNeedsCommitInsideDraw;
scheduler_settings_.use_external_begin_frame_source = true;
SetUpScheduler(make_scoped_ptr(client).Pass(), true);
EXPECT_FALSE(client->needs_begin_frames());
scheduler_->SetNeedsRedraw();
EXPECT_TRUE(scheduler_->RedrawPending());
EXPECT_EQ(0, client->num_draws());
EXPECT_TRUE(client->needs_begin_frames());
client->SetNeedsCommitOnNextDraw();
EXPECT_SCOPED(AdvanceFrame());
client->SetNeedsCommitOnNextDraw();
task_runner().RunPendingTasks(); // Run posted deadline.
EXPECT_EQ(1, client->num_draws());
EXPECT_TRUE(scheduler_->CommitPending());
EXPECT_TRUE(client->needs_begin_frames());
scheduler_->NotifyBeginMainFrameStarted();
scheduler_->NotifyReadyToCommit();
EXPECT_SCOPED(AdvanceFrame());
task_runner().RunPendingTasks(); // Run posted deadline.
EXPECT_EQ(2, client->num_draws());
EXPECT_FALSE(scheduler_->RedrawPending());
EXPECT_FALSE(scheduler_->CommitPending());
EXPECT_TRUE(client->needs_begin_frames());
// We stop requesting BeginImplFrames after a BeginImplFrame where we don't
// swap.
EXPECT_SCOPED(AdvanceFrame());
task_runner().RunPendingTasks(); // Run posted deadline.
EXPECT_EQ(2, client->num_draws());
EXPECT_FALSE(scheduler_->RedrawPending());
EXPECT_FALSE(scheduler_->CommitPending());
EXPECT_FALSE(client->needs_begin_frames());
}
// Tests that when a draw fails then the pending commit should not be dropped.
TEST_F(SchedulerTest, RequestCommitInsideFailedDraw) {
SchedulerClientThatsetNeedsDrawInsideDraw* client =
new SchedulerClientThatsetNeedsDrawInsideDraw;
scheduler_settings_.use_external_begin_frame_source = true;
SetUpScheduler(make_scoped_ptr(client).Pass(), true);
client->SetDrawWillHappen(false);
scheduler_->SetNeedsRedraw();
EXPECT_TRUE(scheduler_->RedrawPending());
EXPECT_TRUE(client->needs_begin_frames());
EXPECT_EQ(0, client->num_draws());
// Fail the draw.
EXPECT_SCOPED(AdvanceFrame());
task_runner().RunPendingTasks(); // Run posted deadline.
EXPECT_EQ(1, client->num_draws());
// We have a commit pending and the draw failed, and we didn't lose the commit
// request.
EXPECT_TRUE(scheduler_->CommitPending());
EXPECT_TRUE(scheduler_->RedrawPending());
EXPECT_TRUE(client->needs_begin_frames());
// Fail the draw again.
EXPECT_SCOPED(AdvanceFrame());
task_runner().RunPendingTasks(); // Run posted deadline.
EXPECT_EQ(2, client->num_draws());
EXPECT_TRUE(scheduler_->CommitPending());
EXPECT_TRUE(scheduler_->RedrawPending());
EXPECT_TRUE(client->needs_begin_frames());
// Draw successfully.
client->SetDrawWillHappen(true);
EXPECT_SCOPED(AdvanceFrame());
task_runner().RunPendingTasks(); // Run posted deadline.
EXPECT_EQ(3, client->num_draws());
EXPECT_TRUE(scheduler_->CommitPending());
EXPECT_FALSE(scheduler_->RedrawPending());
EXPECT_TRUE(client->needs_begin_frames());
}
TEST_F(SchedulerTest, NoSwapWhenDrawFails) {
SchedulerClientThatSetNeedsCommitInsideDraw* client =
new SchedulerClientThatSetNeedsCommitInsideDraw;
scheduler_settings_.use_external_begin_frame_source = true;
SetUpScheduler(make_scoped_ptr(client).Pass(), true);
scheduler_->SetNeedsRedraw();
EXPECT_TRUE(scheduler_->RedrawPending());
EXPECT_TRUE(client->needs_begin_frames());
EXPECT_EQ(0, client->num_draws());
// Draw successfully, this starts a new frame.
client->SetNeedsCommitOnNextDraw();
EXPECT_SCOPED(AdvanceFrame());
task_runner().RunPendingTasks(); // Run posted deadline.
EXPECT_EQ(1, client->num_draws());
scheduler_->SetNeedsRedraw();
EXPECT_TRUE(scheduler_->RedrawPending());
EXPECT_TRUE(client->needs_begin_frames());
// Fail to draw, this should not start a frame.
client->SetDrawWillHappen(false);
client->SetNeedsCommitOnNextDraw();
EXPECT_SCOPED(AdvanceFrame());
task_runner().RunPendingTasks(); // Run posted deadline.
EXPECT_EQ(2, client->num_draws());
}
class SchedulerClientNeedsPrepareTilesInDraw : public FakeSchedulerClient {
public:
DrawResult ScheduledActionDrawAndSwapIfPossible() override {
scheduler_->SetNeedsPrepareTiles();
return FakeSchedulerClient::ScheduledActionDrawAndSwapIfPossible();
}
};
// Test prepare tiles is independant of draws.
TEST_F(SchedulerTest, PrepareTiles) {
SchedulerClientNeedsPrepareTilesInDraw* client =
new SchedulerClientNeedsPrepareTilesInDraw;
scheduler_settings_.use_external_begin_frame_source = true;
SetUpScheduler(make_scoped_ptr(client).Pass(), true);
// Request both draw and prepare tiles. PrepareTiles shouldn't
// be trigged until BeginImplFrame.
client->Reset();
scheduler_->SetNeedsPrepareTiles();
scheduler_->SetNeedsRedraw();
EXPECT_TRUE(scheduler_->RedrawPending());
EXPECT_TRUE(scheduler_->PrepareTilesPending());
EXPECT_TRUE(client->needs_begin_frames());
EXPECT_EQ(0, client->num_draws());
EXPECT_FALSE(client->HasAction("ScheduledActionPrepareTiles"));
EXPECT_FALSE(client->HasAction("ScheduledActionDrawAndSwapIfPossible"));
// We have no immediate actions to perform, so the BeginImplFrame should post
// the deadline task.
client->Reset();
EXPECT_SCOPED(AdvanceFrame());
EXPECT_ACTION("WillBeginImplFrame", client, 0, 2);
EXPECT_ACTION("ScheduledActionAnimate", client, 1, 2);
EXPECT_TRUE(scheduler_->BeginImplFrameDeadlinePending());
// On the deadline, he actions should have occured in the right order.
client->Reset();
task_runner().RunPendingTasks(); // Run posted deadline.
EXPECT_EQ(1, client->num_draws());
EXPECT_TRUE(client->HasAction("ScheduledActionDrawAndSwapIfPossible"));
EXPECT_TRUE(client->HasAction("ScheduledActionPrepareTiles"));
EXPECT_LT(client->ActionIndex("ScheduledActionDrawAndSwapIfPossible"),
client->ActionIndex("ScheduledActionPrepareTiles"));
EXPECT_FALSE(scheduler_->RedrawPending());
EXPECT_FALSE(scheduler_->PrepareTilesPending());
EXPECT_FALSE(scheduler_->BeginImplFrameDeadlinePending());
// Request a draw. We don't need a PrepareTiles yet.
client->Reset();
scheduler_->SetNeedsRedraw();
EXPECT_TRUE(scheduler_->RedrawPending());
EXPECT_FALSE(scheduler_->PrepareTilesPending());
EXPECT_TRUE(client->needs_begin_frames());
EXPECT_EQ(0, client->num_draws());
// We have no immediate actions to perform, so the BeginImplFrame should post
// the deadline task.
client->Reset();
EXPECT_SCOPED(AdvanceFrame());
EXPECT_ACTION("WillBeginImplFrame", client, 0, 2);
EXPECT_ACTION("ScheduledActionAnimate", client, 1, 2);
EXPECT_TRUE(scheduler_->BeginImplFrameDeadlinePending());
// Draw. The draw will trigger SetNeedsPrepareTiles, and
// then the PrepareTiles action will be triggered after the Draw.
// Afterwards, neither a draw nor PrepareTiles are pending.
client->Reset();
task_runner().RunPendingTasks(); // Run posted deadline.
EXPECT_EQ(1, client->num_draws());
EXPECT_TRUE(client->HasAction("ScheduledActionDrawAndSwapIfPossible"));
EXPECT_TRUE(client->HasAction("ScheduledActionPrepareTiles"));
EXPECT_LT(client->ActionIndex("ScheduledActionDrawAndSwapIfPossible"),
client->ActionIndex("ScheduledActionPrepareTiles"));
EXPECT_FALSE(scheduler_->RedrawPending());
EXPECT_FALSE(scheduler_->PrepareTilesPending());
EXPECT_FALSE(scheduler_->BeginImplFrameDeadlinePending());
// We need a BeginImplFrame where we don't swap to go idle.
client->Reset();
EXPECT_SCOPED(AdvanceFrame());
EXPECT_SINGLE_ACTION("WillBeginImplFrame", client);
EXPECT_TRUE(scheduler_->BeginImplFrameDeadlinePending());
client->Reset();
task_runner().RunPendingTasks(); // Run posted deadline.
EXPECT_ACTION("SetNeedsBeginFrames(false)", client_, 0, 2);
EXPECT_ACTION("SendBeginMainFrameNotExpectedSoon", client_, 1, 2);
EXPECT_FALSE(scheduler_->BeginImplFrameDeadlinePending());
EXPECT_EQ(0, client->num_draws());
// Now trigger a PrepareTiles outside of a draw. We will then need
// a begin-frame for the PrepareTiles, but we don't need a draw.
client->Reset();
EXPECT_FALSE(client->needs_begin_frames());
scheduler_->SetNeedsPrepareTiles();
EXPECT_TRUE(client->needs_begin_frames());
EXPECT_TRUE(scheduler_->PrepareTilesPending());
EXPECT_FALSE(scheduler_->RedrawPending());
// BeginImplFrame. There will be no draw, only PrepareTiles.
client->Reset();
EXPECT_SCOPED(AdvanceFrame());
EXPECT_SINGLE_ACTION("WillBeginImplFrame", client);
EXPECT_TRUE(scheduler_->BeginImplFrameDeadlinePending());
client->Reset();
task_runner().RunPendingTasks(); // Run posted deadline.
EXPECT_EQ(0, client->num_draws());
EXPECT_FALSE(client->HasAction("ScheduledActionDrawAndSwapIfPossible"));
EXPECT_TRUE(client->HasAction("ScheduledActionPrepareTiles"));
EXPECT_FALSE(scheduler_->BeginImplFrameDeadlinePending());
}
// Test that PrepareTiles only happens once per frame. If an external caller
// initiates it, then the state machine should not PrepareTiles on that frame.
TEST_F(SchedulerTest, PrepareTilesOncePerFrame) {
scheduler_settings_.use_external_begin_frame_source = true;
SetUpScheduler(true);
// If DidPrepareTiles during a frame, then PrepareTiles should not occur
// again.
scheduler_->SetNeedsPrepareTiles();
scheduler_->SetNeedsRedraw();
client_->Reset();
EXPECT_SCOPED(AdvanceFrame());
EXPECT_ACTION("WillBeginImplFrame", client_, 0, 2);
EXPECT_ACTION("ScheduledActionAnimate", client_, 1, 2);
EXPECT_TRUE(scheduler_->BeginImplFrameDeadlinePending());
EXPECT_TRUE(scheduler_->PrepareTilesPending());
scheduler_->DidPrepareTiles(); // An explicit PrepareTiles.
EXPECT_FALSE(scheduler_->PrepareTilesPending());
client_->Reset();
task_runner().RunPendingTasks(); // Run posted deadline.
EXPECT_EQ(1, client_->num_draws());
EXPECT_TRUE(client_->HasAction("ScheduledActionDrawAndSwapIfPossible"));
EXPECT_FALSE(client_->HasAction("ScheduledActionPrepareTiles"));
EXPECT_FALSE(scheduler_->RedrawPending());
EXPECT_FALSE(scheduler_->PrepareTilesPending());
EXPECT_FALSE(scheduler_->BeginImplFrameDeadlinePending());
// Next frame without DidPrepareTiles should PrepareTiles with draw.
scheduler_->SetNeedsPrepareTiles();
scheduler_->SetNeedsRedraw();
client_->Reset();
EXPECT_SCOPED(AdvanceFrame());
EXPECT_ACTION("WillBeginImplFrame", client_, 0, 2);
EXPECT_ACTION("ScheduledActionAnimate", client_, 1, 2);
EXPECT_TRUE(scheduler_->BeginImplFrameDeadlinePending());
client_->Reset();
task_runner().RunPendingTasks(); // Run posted deadline.
EXPECT_EQ(1, client_->num_draws());
EXPECT_TRUE(client_->HasAction("ScheduledActionDrawAndSwapIfPossible"));
EXPECT_TRUE(client_->HasAction("ScheduledActionPrepareTiles"));
EXPECT_LT(client_->ActionIndex("ScheduledActionDrawAndSwapIfPossible"),
client_->ActionIndex("ScheduledActionPrepareTiles"));
EXPECT_FALSE(scheduler_->RedrawPending());
EXPECT_FALSE(scheduler_->PrepareTilesPending());
EXPECT_FALSE(scheduler_->BeginImplFrameDeadlinePending());
scheduler_->DidPrepareTiles(); // Corresponds to ScheduledActionPrepareTiles
// If we get another DidPrepareTiles within the same frame, we should
// not PrepareTiles on the next frame.
scheduler_->DidPrepareTiles(); // An explicit PrepareTiles.
scheduler_->SetNeedsPrepareTiles();
scheduler_->SetNeedsRedraw();
client_->Reset();
EXPECT_SCOPED(AdvanceFrame());
EXPECT_ACTION("WillBeginImplFrame", client_, 0, 2);
EXPECT_ACTION("ScheduledActionAnimate", client_, 1, 2);
EXPECT_TRUE(scheduler_->BeginImplFrameDeadlinePending());
EXPECT_TRUE(scheduler_->PrepareTilesPending());
client_->Reset();
task_runner().RunPendingTasks(); // Run posted deadline.
EXPECT_EQ(1, client_->num_draws());
EXPECT_TRUE(client_->HasAction("ScheduledActionDrawAndSwapIfPossible"));
EXPECT_FALSE(client_->HasAction("ScheduledActionPrepareTiles"));
EXPECT_FALSE(scheduler_->RedrawPending());
EXPECT_FALSE(scheduler_->BeginImplFrameDeadlinePending());
// If we get another DidPrepareTiles, we should not PrepareTiles on the next
// frame. This verifies we don't alternate calling PrepareTiles once and
// twice.
EXPECT_TRUE(scheduler_->PrepareTilesPending());
scheduler_->DidPrepareTiles(); // An explicit PrepareTiles.
EXPECT_FALSE(scheduler_->PrepareTilesPending());
scheduler_->SetNeedsPrepareTiles();
scheduler_->SetNeedsRedraw();
client_->Reset();
EXPECT_SCOPED(AdvanceFrame());
EXPECT_ACTION("WillBeginImplFrame", client_, 0, 2);
EXPECT_ACTION("ScheduledActionAnimate", client_, 1, 2);
EXPECT_TRUE(scheduler_->BeginImplFrameDeadlinePending());
EXPECT_TRUE(scheduler_->PrepareTilesPending());
client_->Reset();
task_runner().RunPendingTasks(); // Run posted deadline.
EXPECT_EQ(1, client_->num_draws());
EXPECT_TRUE(client_->HasAction("ScheduledActionDrawAndSwapIfPossible"));
EXPECT_FALSE(client_->HasAction("ScheduledActionPrepareTiles"));
EXPECT_FALSE(scheduler_->RedrawPending());
EXPECT_FALSE(scheduler_->BeginImplFrameDeadlinePending());
// Next frame without DidPrepareTiles should PrepareTiles with draw.
scheduler_->SetNeedsPrepareTiles();
scheduler_->SetNeedsRedraw();
client_->Reset();
EXPECT_SCOPED(AdvanceFrame());
EXPECT_ACTION("WillBeginImplFrame", client_, 0, 2);
EXPECT_ACTION("ScheduledActionAnimate", client_, 1, 2);
EXPECT_TRUE(scheduler_->BeginImplFrameDeadlinePending());
client_->Reset();
task_runner().RunPendingTasks(); // Run posted deadline.
EXPECT_EQ(1, client_->num_draws());
EXPECT_TRUE(client_->HasAction("ScheduledActionDrawAndSwapIfPossible"));
EXPECT_TRUE(client_->HasAction("ScheduledActionPrepareTiles"));
EXPECT_LT(client_->ActionIndex("ScheduledActionDrawAndSwapIfPossible"),
client_->ActionIndex("ScheduledActionPrepareTiles"));
EXPECT_FALSE(scheduler_->RedrawPending());
EXPECT_FALSE(scheduler_->PrepareTilesPending());
EXPECT_FALSE(scheduler_->BeginImplFrameDeadlinePending());
scheduler_->DidPrepareTiles(); // Corresponds to ScheduledActionPrepareTiles
}
TEST_F(SchedulerTest, TriggerBeginFrameDeadlineEarly) {
SchedulerClientNeedsPrepareTilesInDraw* client =
new SchedulerClientNeedsPrepareTilesInDraw;
scheduler_settings_.use_external_begin_frame_source = true;
SetUpScheduler(make_scoped_ptr(client).Pass(), true);
scheduler_->SetNeedsRedraw();
EXPECT_SCOPED(AdvanceFrame());
// The deadline should be zero since there is no work other than drawing
// pending.
EXPECT_EQ(base::TimeTicks(), client->posted_begin_impl_frame_deadline());
}
class SchedulerClientWithFixedEstimates : public FakeSchedulerClient {
public:
SchedulerClientWithFixedEstimates(
base::TimeDelta draw_duration,
base::TimeDelta begin_main_frame_to_commit_duration,
base::TimeDelta commit_to_activate_duration)
: draw_duration_(draw_duration),
begin_main_frame_to_commit_duration_(
begin_main_frame_to_commit_duration),
commit_to_activate_duration_(commit_to_activate_duration) {}
base::TimeDelta DrawDurationEstimate() override { return draw_duration_; }
base::TimeDelta BeginMainFrameToCommitDurationEstimate() override {
return begin_main_frame_to_commit_duration_;
}
base::TimeDelta CommitToActivateDurationEstimate() override {
return commit_to_activate_duration_;
}
private:
base::TimeDelta draw_duration_;
base::TimeDelta begin_main_frame_to_commit_duration_;
base::TimeDelta commit_to_activate_duration_;
};
void SchedulerTest::MainFrameInHighLatencyMode(
int64 begin_main_frame_to_commit_estimate_in_ms,
int64 commit_to_activate_estimate_in_ms,
bool impl_latency_takes_priority,
bool should_send_begin_main_frame) {
// Set up client with specified estimates (draw duration is set to 1).
SchedulerClientWithFixedEstimates* client =
new SchedulerClientWithFixedEstimates(
base::TimeDelta::FromMilliseconds(1),
base::TimeDelta::FromMilliseconds(
begin_main_frame_to_commit_estimate_in_ms),
base::TimeDelta::FromMilliseconds(commit_to_activate_estimate_in_ms));
scheduler_settings_.use_external_begin_frame_source = true;
SetUpScheduler(make_scoped_ptr(client).Pass(), true);
scheduler_->SetImplLatencyTakesPriority(impl_latency_takes_priority);
// Impl thread hits deadline before commit finishes.
scheduler_->SetNeedsCommit();
EXPECT_FALSE(scheduler_->MainThreadIsInHighLatencyMode());
EXPECT_SCOPED(AdvanceFrame());
EXPECT_FALSE(scheduler_->MainThreadIsInHighLatencyMode());
task_runner().RunPendingTasks(); // Run posted deadline.
EXPECT_TRUE(scheduler_->MainThreadIsInHighLatencyMode());
scheduler_->NotifyBeginMainFrameStarted();
scheduler_->NotifyReadyToCommit();
EXPECT_TRUE(scheduler_->MainThreadIsInHighLatencyMode());
EXPECT_TRUE(client->HasAction("ScheduledActionSendBeginMainFrame"));
client->Reset();
scheduler_->SetNeedsCommit();
EXPECT_TRUE(scheduler_->MainThreadIsInHighLatencyMode());
EXPECT_SCOPED(AdvanceFrame());
EXPECT_TRUE(scheduler_->MainThreadIsInHighLatencyMode());
task_runner().RunPendingTasks(); // Run posted deadline.
EXPECT_EQ(scheduler_->MainThreadIsInHighLatencyMode(),
should_send_begin_main_frame);
EXPECT_EQ(client->HasAction("ScheduledActionSendBeginMainFrame"),
should_send_begin_main_frame);
}
TEST_F(SchedulerTest,
SkipMainFrameIfHighLatencyAndCanCommitAndActivateBeforeDeadline) {
// Set up client so that estimates indicate that we can commit and activate
// before the deadline (~8ms by default).
MainFrameInHighLatencyMode(1, 1, false, false);
}
TEST_F(SchedulerTest, NotSkipMainFrameIfHighLatencyAndCanCommitTooLong) {
// Set up client so that estimates indicate that the commit cannot finish
// before the deadline (~8ms by default).
MainFrameInHighLatencyMode(10, 1, false, true);
}
TEST_F(SchedulerTest, NotSkipMainFrameIfHighLatencyAndCanActivateTooLong) {
// Set up client so that estimates indicate that the activate cannot finish
// before the deadline (~8ms by default).
MainFrameInHighLatencyMode(1, 10, false, true);
}
TEST_F(SchedulerTest, NotSkipMainFrameInPreferImplLatencyMode) {
// Set up client so that estimates indicate that we can commit and activate
// before the deadline (~8ms by default), but also enable impl latency takes
// priority mode.
MainFrameInHighLatencyMode(1, 1, true, true);
}
TEST_F(SchedulerTest, PollForCommitCompletion) {
// Since we are simulating a long commit, set up a client with draw duration
// estimates that prevent skipping main frames to get to low latency mode.
SchedulerClientWithFixedEstimates* client =
new SchedulerClientWithFixedEstimates(
base::TimeDelta::FromMilliseconds(1),
base::TimeDelta::FromMilliseconds(32),
base::TimeDelta::FromMilliseconds(32));
scheduler_settings_.use_external_begin_frame_source = true;
SetUpScheduler(make_scoped_ptr(client).Pass(), true);
client->set_log_anticipated_draw_time_change(true);
BeginFrameArgs frame_args =
CreateBeginFrameArgsForTesting(BEGINFRAME_FROM_HERE, now_src());
frame_args.interval = base::TimeDelta::FromMilliseconds(1000);
// At this point, we've drawn a frame. Start another commit, but hold off on
// the NotifyReadyToCommit for now.
EXPECT_FALSE(scheduler_->CommitPending());
scheduler_->SetNeedsCommit();
fake_external_begin_frame_source()->TestOnBeginFrame(frame_args);
EXPECT_TRUE(scheduler_->CommitPending());
// Draw and swap the frame, but don't ack the swap to simulate the Browser
// blocking on the renderer.
EXPECT_TRUE(scheduler_->BeginImplFrameDeadlinePending());
task_runner().RunPendingTasks(); // Run posted deadline.
EXPECT_FALSE(scheduler_->BeginImplFrameDeadlinePending());
scheduler_->DidSwapBuffers();
// Spin the event loop a few times and make sure we get more
// DidAnticipateDrawTimeChange calls every time.
int actions_so_far = client->num_actions_();
// Does three iterations to make sure that the timer is properly repeating.
for (int i = 0; i < 3; ++i) {
EXPECT_EQ((frame_args.interval * 2).InMicroseconds(),
task_runner().DelayToNextTaskTime().InMicroseconds())
<< scheduler_->AsValue()->ToString();
task_runner().RunPendingTasks();
EXPECT_GT(client->num_actions_(), actions_so_far);
EXPECT_STREQ(client->Action(client->num_actions_() - 1),
"DidAnticipatedDrawTimeChange");
actions_so_far = client->num_actions_();
}
// Do the same thing after BeginMainFrame starts but still before activation.
scheduler_->NotifyBeginMainFrameStarted();
for (int i = 0; i < 3; ++i) {
EXPECT_EQ((frame_args.interval * 2).InMicroseconds(),
task_runner().DelayToNextTaskTime().InMicroseconds())
<< scheduler_->AsValue()->ToString();
task_runner().RunPendingTasks();
EXPECT_GT(client->num_actions_(), actions_so_far);
EXPECT_STREQ(client->Action(client->num_actions_() - 1),
"DidAnticipatedDrawTimeChange");
actions_so_far = client->num_actions_();
}
}
TEST_F(SchedulerTest, BeginRetroFrame) {
scheduler_settings_.use_external_begin_frame_source = true;
SetUpScheduler(true);
// SetNeedsCommit should begin the frame on the next BeginImplFrame.
scheduler_->SetNeedsCommit();
EXPECT_SINGLE_ACTION("SetNeedsBeginFrames(true)", client_);
client_->Reset();
// Create a BeginFrame with a long deadline to avoid race conditions.
// This is the first BeginFrame, which will be handled immediately.
BeginFrameArgs args =
CreateBeginFrameArgsForTesting(BEGINFRAME_FROM_HERE, now_src());
args.deadline += base::TimeDelta::FromHours(1);
fake_external_begin_frame_source()->TestOnBeginFrame(args);
EXPECT_ACTION("WillBeginImplFrame", client_, 0, 2);
EXPECT_ACTION("ScheduledActionSendBeginMainFrame", client_, 1, 2);
EXPECT_TRUE(scheduler_->BeginImplFrameDeadlinePending());
EXPECT_TRUE(client_->needs_begin_frames());
client_->Reset();
// Queue BeginFrames while we are still handling the previous BeginFrame.
args.frame_time += base::TimeDelta::FromSeconds(1);
fake_external_begin_frame_source()->TestOnBeginFrame(args);
args.frame_time += base::TimeDelta::FromSeconds(1);
fake_external_begin_frame_source()->TestOnBeginFrame(args);
// If we don't swap on the deadline, we wait for the next BeginImplFrame.
task_runner().RunPendingTasks(); // Run posted deadline.
EXPECT_NO_ACTION(client_);
EXPECT_FALSE(scheduler_->BeginImplFrameDeadlinePending());
EXPECT_TRUE(client_->needs_begin_frames());
client_->Reset();
// NotifyReadyToCommit should trigger the commit.
scheduler_->NotifyBeginMainFrameStarted();
scheduler_->NotifyReadyToCommit();
EXPECT_SINGLE_ACTION("ScheduledActionCommit", client_);
EXPECT_TRUE(client_->needs_begin_frames());
client_->Reset();
// BeginImplFrame should prepare the draw.
task_runner().RunPendingTasks(); // Run posted BeginRetroFrame.
EXPECT_ACTION("WillBeginImplFrame", client_, 0, 2);
EXPECT_ACTION("ScheduledActionAnimate", client_, 1, 2);
EXPECT_TRUE(scheduler_->BeginImplFrameDeadlinePending());
EXPECT_TRUE(client_->needs_begin_frames());
client_->Reset();
// BeginImplFrame deadline should draw.
task_runner().RunPendingTasks(); // Run posted deadline.
EXPECT_ACTION("ScheduledActionDrawAndSwapIfPossible", client_, 0, 1);
EXPECT_FALSE(scheduler_->BeginImplFrameDeadlinePending());
EXPECT_TRUE(client_->needs_begin_frames());
client_->Reset();
// The following BeginImplFrame deadline should SetNeedsBeginFrame(false)
// to avoid excessive toggles.
task_runner().RunPendingTasks(); // Run posted BeginRetroFrame.
EXPECT_SINGLE_ACTION("WillBeginImplFrame", client_);
EXPECT_TRUE(scheduler_->BeginImplFrameDeadlinePending());
client_->Reset();
task_runner().RunPendingTasks(); // Run posted deadline.
EXPECT_ACTION("SetNeedsBeginFrames(false)", client_, 0, 2);
EXPECT_ACTION("SendBeginMainFrameNotExpectedSoon", client_, 1, 2);
client_->Reset();
}
TEST_F(SchedulerTest, BeginRetroFrame_SwapThrottled) {
scheduler_settings_.use_external_begin_frame_source = true;
SetUpScheduler(true);
scheduler_->SetEstimatedParentDrawTime(base::TimeDelta::FromMicroseconds(1));
// To test swap ack throttling, this test disables automatic swap acks.
scheduler_->SetMaxSwapsPending(1);
client_->SetAutomaticSwapAck(false);
// SetNeedsCommit should begin the frame on the next BeginImplFrame.
client_->Reset();
scheduler_->SetNeedsCommit();
EXPECT_SINGLE_ACTION("SetNeedsBeginFrames(true)", client_);
client_->Reset();
EXPECT_SCOPED(AdvanceFrame());
EXPECT_ACTION("WillBeginImplFrame", client_, 0, 2);
EXPECT_ACTION("ScheduledActionSendBeginMainFrame", client_, 1, 2);
EXPECT_TRUE(scheduler_->BeginImplFrameDeadlinePending());
EXPECT_TRUE(client_->needs_begin_frames());
client_->Reset();
// Queue BeginFrame while we are still handling the previous BeginFrame.
SendNextBeginFrame();
EXPECT_NO_ACTION(client_);
EXPECT_TRUE(scheduler_->BeginImplFrameDeadlinePending());
EXPECT_TRUE(client_->needs_begin_frames());
client_->Reset();
// NotifyReadyToCommit should trigger the pending commit and draw.
scheduler_->NotifyBeginMainFrameStarted();
scheduler_->NotifyReadyToCommit();
EXPECT_SINGLE_ACTION("ScheduledActionCommit", client_);
EXPECT_TRUE(client_->needs_begin_frames());
client_->Reset();
// Swapping will put us into a swap throttled state.
// Run posted deadline.
task_runner().RunTasksWhile(client_->ImplFrameDeadlinePending(true));
EXPECT_ACTION("ScheduledActionAnimate", client_, 0, 2);
EXPECT_ACTION("ScheduledActionDrawAndSwapIfPossible", client_, 1, 2);
EXPECT_FALSE(scheduler_->BeginImplFrameDeadlinePending());
EXPECT_TRUE(client_->needs_begin_frames());
client_->Reset();
// While swap throttled, BeginRetroFrames should trigger BeginImplFrames
// but not a BeginMainFrame or draw.
scheduler_->SetNeedsCommit();
scheduler_->SetNeedsRedraw();
// Run posted BeginRetroFrame.
task_runner().RunTasksWhile(client_->ImplFrameDeadlinePending(false));
EXPECT_ACTION("WillBeginImplFrame", client_, 0, 2);
EXPECT_ACTION("ScheduledActionAnimate", client_, 1, 2);
EXPECT_TRUE(scheduler_->BeginImplFrameDeadlinePending());
EXPECT_TRUE(client_->needs_begin_frames());
client_->Reset();
// Let time pass sufficiently beyond the regular deadline but not beyond the
// late deadline.
now_src()->AdvanceNow(BeginFrameArgs::DefaultInterval() -
base::TimeDelta::FromMicroseconds(1));
task_runner().RunUntilTime(now_src()->Now());
EXPECT_TRUE(scheduler_->BeginImplFrameDeadlinePending());
// Take us out of a swap throttled state.
scheduler_->DidSwapBuffersComplete();
EXPECT_SINGLE_ACTION("ScheduledActionSendBeginMainFrame", client_);
EXPECT_TRUE(scheduler_->BeginImplFrameDeadlinePending());
EXPECT_TRUE(client_->needs_begin_frames());
client_->Reset();
// Verify that the deadline was rescheduled.
task_runner().RunUntilTime(now_src()->Now());
EXPECT_SINGLE_ACTION("ScheduledActionDrawAndSwapIfPossible", client_);
EXPECT_FALSE(scheduler_->BeginImplFrameDeadlinePending());
EXPECT_TRUE(client_->needs_begin_frames());
client_->Reset();
}
TEST_F(SchedulerTest, RetroFrameDoesNotExpireTooEarly) {
scheduler_settings_.use_external_begin_frame_source = true;
SetUpScheduler(true);
scheduler_->SetNeedsCommit();
EXPECT_TRUE(client_->needs_begin_frames());
EXPECT_SINGLE_ACTION("SetNeedsBeginFrames(true)", client_);
client_->Reset();
EXPECT_SCOPED(AdvanceFrame());
EXPECT_ACTION("WillBeginImplFrame", client_, 0, 2);
EXPECT_ACTION("ScheduledActionSendBeginMainFrame", client_, 1, 2);
EXPECT_TRUE(scheduler_->BeginImplFrameDeadlinePending());
client_->Reset();
scheduler_->NotifyBeginMainFrameStarted();
client_->Reset();
SendNextBeginFrame();
// This BeginFrame is queued up as a retro frame.
EXPECT_NO_ACTION(client_);
// The previous deadline is still pending.
EXPECT_TRUE(scheduler_->BeginImplFrameDeadlinePending());
client_->Reset();
// This commit should schedule the (previous) deadline to trigger immediately.
scheduler_->NotifyReadyToCommit();
EXPECT_SINGLE_ACTION("ScheduledActionCommit", client_);
client_->Reset();
// The deadline task should trigger causing a draw.
EXPECT_TRUE(scheduler_->BeginImplFrameDeadlinePending());
task_runner().RunTasksWhile(client_->ImplFrameDeadlinePending(true));
EXPECT_ACTION("ScheduledActionAnimate", client_, 0, 2);
EXPECT_ACTION("ScheduledActionDrawAndSwapIfPossible", client_, 1, 2);
// Keep animating.
client_->Reset();
scheduler_->SetNeedsAnimate();
scheduler_->SetNeedsRedraw();
EXPECT_NO_ACTION(client_);
// Let's advance sufficiently past the next frame's deadline.
now_src()->AdvanceNow(BeginFrameArgs::DefaultInterval() -
BeginFrameArgs::DefaultEstimatedParentDrawTime() +
base::TimeDelta::FromMicroseconds(1));
// The retro frame hasn't expired yet.
task_runner().RunTasksWhile(client_->ImplFrameDeadlinePending(false));
EXPECT_ACTION("WillBeginImplFrame", client_, 0, 2);
EXPECT_ACTION("ScheduledActionAnimate", client_, 1, 2);
EXPECT_TRUE(scheduler_->BeginImplFrameDeadlinePending());
// This is an immediate deadline case.
client_->Reset();
task_runner().RunPendingTasks();
EXPECT_FALSE(scheduler_->BeginImplFrameDeadlinePending());
EXPECT_SINGLE_ACTION("ScheduledActionDrawAndSwapIfPossible", client_);
}
TEST_F(SchedulerTest, RetroFrameDoesNotExpireTooLate) {
scheduler_settings_.use_external_begin_frame_source = true;
SetUpScheduler(true);
scheduler_->SetNeedsCommit();
EXPECT_TRUE(client_->needs_begin_frames());
EXPECT_SINGLE_ACTION("SetNeedsBeginFrames(true)", client_);
client_->Reset();
EXPECT_SCOPED(AdvanceFrame());
EXPECT_ACTION("WillBeginImplFrame", client_, 0, 2);
EXPECT_ACTION("ScheduledActionSendBeginMainFrame", client_, 1, 2);
EXPECT_TRUE(scheduler_->BeginImplFrameDeadlinePending());
client_->Reset();
scheduler_->NotifyBeginMainFrameStarted();
client_->Reset();
SendNextBeginFrame();
// This BeginFrame is queued up as a retro frame.
EXPECT_NO_ACTION(client_);
// The previous deadline is still pending.
EXPECT_TRUE(scheduler_->BeginImplFrameDeadlinePending());
client_->Reset();
// This commit should schedule the (previous) deadline to trigger immediately.
scheduler_->NotifyReadyToCommit();
EXPECT_SINGLE_ACTION("ScheduledActionCommit", client_);
client_->Reset();
// The deadline task should trigger causing a draw.
EXPECT_TRUE(scheduler_->BeginImplFrameDeadlinePending());
task_runner().RunTasksWhile(client_->ImplFrameDeadlinePending(true));
EXPECT_ACTION("ScheduledActionAnimate", client_, 0, 2);
EXPECT_ACTION("ScheduledActionDrawAndSwapIfPossible", client_, 1, 2);
// Keep animating.
client_->Reset();
scheduler_->SetNeedsAnimate();
scheduler_->SetNeedsRedraw();
EXPECT_NO_ACTION(client_);
// Let's advance sufficiently past the next frame's deadline.
now_src()->AdvanceNow(BeginFrameArgs::DefaultInterval() +
base::TimeDelta::FromMicroseconds(1));
// The retro frame should've expired.
EXPECT_NO_ACTION(client_);
}
void SchedulerTest::BeginFramesNotFromClient(
bool use_external_begin_frame_source,
bool throttle_frame_production) {
scheduler_settings_.use_external_begin_frame_source =
use_external_begin_frame_source;
scheduler_settings_.throttle_frame_production = throttle_frame_production;
SetUpScheduler(true);
// SetNeedsCommit should begin the frame on the next BeginImplFrame
// without calling SetNeedsBeginFrame.
scheduler_->SetNeedsCommit();
EXPECT_NO_ACTION(client_);
client_->Reset();
// When the client-driven BeginFrame are disabled, the scheduler posts it's
// own BeginFrame tasks.
task_runner().RunPendingTasks(); // Run posted BeginFrame.
EXPECT_ACTION("WillBeginImplFrame", client_, 0, 2);
EXPECT_ACTION("ScheduledActionSendBeginMainFrame", client_, 1, 2);
EXPECT_TRUE(scheduler_->BeginImplFrameDeadlinePending());
client_->Reset();
// If we don't swap on the deadline, we wait for the next BeginFrame.
task_runner().RunPendingTasks(); // Run posted deadline.
EXPECT_NO_ACTION(client_);
EXPECT_FALSE(scheduler_->BeginImplFrameDeadlinePending());
client_->Reset();
// NotifyReadyToCommit should trigger the commit.
scheduler_->NotifyBeginMainFrameStarted();
scheduler_->NotifyReadyToCommit();
EXPECT_SINGLE_ACTION("ScheduledActionCommit", client_);
client_->Reset();
// BeginImplFrame should prepare the draw.
task_runner().RunPendingTasks(); // Run posted BeginFrame.
EXPECT_ACTION("WillBeginImplFrame", client_, 0, 2);
EXPECT_ACTION("ScheduledActionAnimate", client_, 1, 2);
EXPECT_TRUE(scheduler_->BeginImplFrameDeadlinePending());
client_->Reset();
// BeginImplFrame deadline should draw.
task_runner().RunTasksWhile(client_->ImplFrameDeadlinePending(true));
EXPECT_ACTION("ScheduledActionDrawAndSwapIfPossible", client_, 0, 1);
EXPECT_FALSE(scheduler_->BeginImplFrameDeadlinePending());
client_->Reset();
// The following BeginImplFrame deadline should SetNeedsBeginFrame(false)
// to avoid excessive toggles.
task_runner().RunPendingTasks(); // Run posted BeginFrame.
EXPECT_SINGLE_ACTION("WillBeginImplFrame", client_);
EXPECT_TRUE(scheduler_->BeginImplFrameDeadlinePending());
client_->Reset();
// Make sure SetNeedsBeginFrame isn't called on the client
// when the BeginFrame is no longer needed.
task_runner().RunPendingTasks(); // Run posted deadline.
EXPECT_SINGLE_ACTION("SendBeginMainFrameNotExpectedSoon", client_);
client_->Reset();
}
TEST_F(SchedulerTest, SyntheticBeginFrames) {
bool use_external_begin_frame_source = false;
bool throttle_frame_production = true;
BeginFramesNotFromClient(use_external_begin_frame_source,
throttle_frame_production);
}
TEST_F(SchedulerTest, VSyncThrottlingDisabled) {
bool use_external_begin_frame_source = true;
bool throttle_frame_production = false;
BeginFramesNotFromClient(use_external_begin_frame_source,
throttle_frame_production);
}
TEST_F(SchedulerTest, SyntheticBeginFrames_And_VSyncThrottlingDisabled) {
bool use_external_begin_frame_source = false;
bool throttle_frame_production = false;
BeginFramesNotFromClient(use_external_begin_frame_source,
throttle_frame_production);
}
void SchedulerTest::BeginFramesNotFromClient_SwapThrottled(
bool use_external_begin_frame_source,
bool throttle_frame_production) {
scheduler_settings_.use_external_begin_frame_source =
use_external_begin_frame_source;
scheduler_settings_.throttle_frame_production = throttle_frame_production;
SetUpScheduler(true);
scheduler_->SetEstimatedParentDrawTime(base::TimeDelta::FromMicroseconds(1));
// To test swap ack throttling, this test disables automatic swap acks.
scheduler_->SetMaxSwapsPending(1);
client_->SetAutomaticSwapAck(false);
// SetNeedsCommit should begin the frame on the next BeginImplFrame.
client_->Reset();
scheduler_->SetNeedsCommit();
EXPECT_NO_ACTION(client_);
client_->Reset();
// Trigger the first BeginImplFrame and BeginMainFrame
EXPECT_SCOPED(AdvanceFrame());
EXPECT_ACTION("WillBeginImplFrame", client_, 0, 2);
EXPECT_ACTION("ScheduledActionSendBeginMainFrame", client_, 1, 2);
EXPECT_TRUE(scheduler_->BeginImplFrameDeadlinePending());
client_->Reset();
// NotifyReadyToCommit should trigger the pending commit and draw.
scheduler_->NotifyBeginMainFrameStarted();
scheduler_->NotifyReadyToCommit();
EXPECT_SINGLE_ACTION("ScheduledActionCommit", client_);
client_->Reset();
// Swapping will put us into a swap throttled state.
// Run posted deadline.
task_runner().RunTasksWhile(client_->ImplFrameDeadlinePending(true));
EXPECT_ACTION("ScheduledActionAnimate", client_, 0, 2);
EXPECT_ACTION("ScheduledActionDrawAndSwapIfPossible", client_, 1, 2);
EXPECT_FALSE(scheduler_->BeginImplFrameDeadlinePending());
client_->Reset();
// While swap throttled, BeginFrames should trigger BeginImplFrames,
// but not a BeginMainFrame or draw.
scheduler_->SetNeedsCommit();
scheduler_->SetNeedsRedraw();
EXPECT_SCOPED(AdvanceFrame()); // Run posted BeginFrame.
EXPECT_ACTION("WillBeginImplFrame", client_, 0, 2);
EXPECT_ACTION("ScheduledActionAnimate", client_, 1, 2);
EXPECT_TRUE(scheduler_->BeginImplFrameDeadlinePending());
client_->Reset();
// Let time pass sufficiently beyond the regular deadline but not beyond the
// late deadline.
now_src()->AdvanceNow(BeginFrameArgs::DefaultInterval() -
base::TimeDelta::FromMicroseconds(1));
task_runner().RunUntilTime(now_src()->Now());
EXPECT_TRUE(scheduler_->BeginImplFrameDeadlinePending());
// Take us out of a swap throttled state.
scheduler_->DidSwapBuffersComplete();
EXPECT_SINGLE_ACTION("ScheduledActionSendBeginMainFrame", client_);
EXPECT_TRUE(scheduler_->BeginImplFrameDeadlinePending());
client_->Reset();
// Verify that the deadline was rescheduled.
// We can't use RunUntilTime(now) here because the next frame is also
// scheduled if throttle_frame_production = false.
base::TimeTicks before_deadline = now_src()->Now();
task_runner().RunTasksWhile(client_->ImplFrameDeadlinePending(true));
base::TimeTicks after_deadline = now_src()->Now();
EXPECT_EQ(after_deadline, before_deadline);
EXPECT_FALSE(scheduler_->BeginImplFrameDeadlinePending());
client_->Reset();
}
TEST_F(SchedulerTest, SyntheticBeginFrames_SwapThrottled) {
bool use_external_begin_frame_source = false;
bool throttle_frame_production = true;
BeginFramesNotFromClient_SwapThrottled(use_external_begin_frame_source,
throttle_frame_production);
}
TEST_F(SchedulerTest, VSyncThrottlingDisabled_SwapThrottled) {
bool use_external_begin_frame_source = true;
bool throttle_frame_production = false;
BeginFramesNotFromClient_SwapThrottled(use_external_begin_frame_source,
throttle_frame_production);
}
TEST_F(SchedulerTest,
SyntheticBeginFrames_And_VSyncThrottlingDisabled_SwapThrottled) {
bool use_external_begin_frame_source = false;
bool throttle_frame_production = false;
BeginFramesNotFromClient_SwapThrottled(use_external_begin_frame_source,
throttle_frame_production);
}
TEST_F(SchedulerTest, DidLoseOutputSurfaceAfterOutputSurfaceIsInitialized) {
scheduler_settings_.use_external_begin_frame_source = true;
SetUpScheduler(false);
scheduler_->SetCanStart();
scheduler_->SetVisible(true);
scheduler_->SetCanDraw(true);
EXPECT_SINGLE_ACTION("ScheduledActionBeginOutputSurfaceCreation", client_);
client_->Reset();
scheduler_->DidCreateAndInitializeOutputSurface();
EXPECT_NO_ACTION(client_);
scheduler_->DidLoseOutputSurface();
EXPECT_SINGLE_ACTION("ScheduledActionBeginOutputSurfaceCreation", client_);
}
TEST_F(SchedulerTest, DidLoseOutputSurfaceAfterBeginFrameStarted) {
scheduler_settings_.use_external_begin_frame_source = true;
SetUpScheduler(true);
// SetNeedsCommit should begin the frame.
scheduler_->SetNeedsCommit();
EXPECT_SINGLE_ACTION("SetNeedsBeginFrames(true)", client_);
client_->Reset();
EXPECT_SCOPED(AdvanceFrame());
EXPECT_ACTION("WillBeginImplFrame", client_, 0, 2);
EXPECT_ACTION("ScheduledActionSendBeginMainFrame", client_, 1, 2);
EXPECT_TRUE(scheduler_->BeginImplFrameDeadlinePending());
client_->Reset();
scheduler_->DidLoseOutputSurface();
// Do nothing when impl frame is in deadine pending state.
EXPECT_ACTION("SetNeedsBeginFrames(false)", client_, 0, 2);
EXPECT_ACTION("SendBeginMainFrameNotExpectedSoon", client_, 1, 2);
client_->Reset();
scheduler_->NotifyBeginMainFrameStarted();
scheduler_->NotifyReadyToCommit();
EXPECT_ACTION("ScheduledActionCommit", client_, 0, 1);
client_->Reset();
task_runner().RunPendingTasks(); // Run posted deadline.
EXPECT_SINGLE_ACTION("ScheduledActionBeginOutputSurfaceCreation", client_);
}
void SchedulerTest::DidLoseOutputSurfaceAfterBeginFrameStartedWithHighLatency(
bool impl_side_painting) {
scheduler_settings_.impl_side_painting = impl_side_painting;
scheduler_settings_.use_external_begin_frame_source = true;
SetUpScheduler(true);
// SetNeedsCommit should begin the frame.
scheduler_->SetNeedsCommit();
EXPECT_SINGLE_ACTION("SetNeedsBeginFrames(true)", client_);
client_->Reset();
EXPECT_SCOPED(AdvanceFrame());
EXPECT_ACTION("WillBeginImplFrame", client_, 0, 2);
EXPECT_ACTION("ScheduledActionSendBeginMainFrame", client_, 1, 2);
EXPECT_TRUE(scheduler_->BeginImplFrameDeadlinePending());
client_->Reset();
scheduler_->DidLoseOutputSurface();
// Do nothing when impl frame is in deadine pending state.
EXPECT_ACTION("SetNeedsBeginFrames(false)", client_, 0, 2);
EXPECT_ACTION("SendBeginMainFrameNotExpectedSoon", client_, 1, 2);
client_->Reset();
// Run posted deadline.
EXPECT_TRUE(scheduler_->BeginImplFrameDeadlinePending());
task_runner().RunTasksWhile(client_->ImplFrameDeadlinePending(true));
// OnBeginImplFrameDeadline didn't schedule any actions because main frame is
// not yet completed.
EXPECT_NO_ACTION(client_);
EXPECT_FALSE(scheduler_->BeginImplFrameDeadlinePending());
// BeginImplFrame is not started.
task_runner().RunUntilTime(now_src()->Now() +
base::TimeDelta::FromMilliseconds(10));
EXPECT_NO_ACTION(client_);
EXPECT_FALSE(scheduler_->BeginImplFrameDeadlinePending());
client_->Reset();
scheduler_->NotifyBeginMainFrameStarted();
scheduler_->NotifyReadyToCommit();
if (impl_side_painting) {
EXPECT_ACTION("ScheduledActionCommit", client_, 0, 3);
EXPECT_ACTION("ScheduledActionActivateSyncTree", client_, 1, 3);
EXPECT_ACTION("ScheduledActionBeginOutputSurfaceCreation", client_, 2, 3);
} else {
EXPECT_ACTION("ScheduledActionCommit", client_, 0, 2);
EXPECT_ACTION("ScheduledActionBeginOutputSurfaceCreation", client_, 1, 2);
}
}
TEST_F(SchedulerTest,
DidLoseOutputSurfaceAfterBeginFrameStartedWithHighLatency) {
bool impl_side_painting = false;
DidLoseOutputSurfaceAfterBeginFrameStartedWithHighLatency(impl_side_painting);
}
TEST_F(SchedulerTest,
DidLoseOutputSurfaceAfterBeginFrameStartedWithHighLatencyWithImplPaint) {
bool impl_side_painting = true;
DidLoseOutputSurfaceAfterBeginFrameStartedWithHighLatency(impl_side_painting);
}
void SchedulerTest::DidLoseOutputSurfaceAfterReadyToCommit(
bool impl_side_painting) {
scheduler_settings_.impl_side_painting = impl_side_painting;
scheduler_settings_.use_external_begin_frame_source = true;
SetUpScheduler(true);
// SetNeedsCommit should begin the frame.
scheduler_->SetNeedsCommit();
EXPECT_SINGLE_ACTION("SetNeedsBeginFrames(true)", client_);
client_->Reset();
EXPECT_SCOPED(AdvanceFrame());
EXPECT_ACTION("WillBeginImplFrame", client_, 0, 2);
EXPECT_ACTION("ScheduledActionSendBeginMainFrame", client_, 1, 2);
EXPECT_TRUE(scheduler_->BeginImplFrameDeadlinePending());
client_->Reset();
scheduler_->NotifyBeginMainFrameStarted();
scheduler_->NotifyReadyToCommit();
EXPECT_SINGLE_ACTION("ScheduledActionCommit", client_);
client_->Reset();
scheduler_->DidLoseOutputSurface();
if (impl_side_painting) {
// Sync tree should be forced to activate.
EXPECT_ACTION("ScheduledActionActivateSyncTree", client_, 0, 3);
EXPECT_ACTION("SetNeedsBeginFrames(false)", client_, 1, 3);
EXPECT_ACTION("SendBeginMainFrameNotExpectedSoon", client_, 2, 3);
} else {
EXPECT_ACTION("SetNeedsBeginFrames(false)", client_, 0, 2);
EXPECT_ACTION("SendBeginMainFrameNotExpectedSoon", client_, 1, 2);
}
client_->Reset();
task_runner().RunPendingTasks(); // Run posted deadline.
EXPECT_SINGLE_ACTION("ScheduledActionBeginOutputSurfaceCreation", client_);
}
TEST_F(SchedulerTest, DidLoseOutputSurfaceAfterReadyToCommit) {
DidLoseOutputSurfaceAfterReadyToCommit(false);
}
TEST_F(SchedulerTest, DidLoseOutputSurfaceAfterReadyToCommitWithImplPainting) {
DidLoseOutputSurfaceAfterReadyToCommit(true);
}
TEST_F(SchedulerTest, DidLoseOutputSurfaceAfterSetNeedsPrepareTiles) {
scheduler_settings_.use_external_begin_frame_source = true;
SetUpScheduler(true);
scheduler_->SetNeedsPrepareTiles();
scheduler_->SetNeedsRedraw();
EXPECT_SINGLE_ACTION("SetNeedsBeginFrames(true)", client_);
client_->Reset();
EXPECT_SCOPED(AdvanceFrame());
EXPECT_ACTION("WillBeginImplFrame", client_, 0, 2);
EXPECT_ACTION("ScheduledActionAnimate", client_, 1, 2);
EXPECT_TRUE(scheduler_->BeginImplFrameDeadlinePending());
client_->Reset();
scheduler_->DidLoseOutputSurface();
EXPECT_ACTION("SetNeedsBeginFrames(false)", client_, 0, 2);
EXPECT_ACTION("SendBeginMainFrameNotExpectedSoon", client_, 1, 2);
client_->Reset();
task_runner().RunPendingTasks(); // Run posted deadline.
EXPECT_ACTION("ScheduledActionPrepareTiles", client_, 0, 2);
EXPECT_ACTION("ScheduledActionBeginOutputSurfaceCreation", client_, 1, 2);
}
TEST_F(SchedulerTest, DidLoseOutputSurfaceAfterBeginRetroFramePosted) {
scheduler_settings_.use_external_begin_frame_source = true;
SetUpScheduler(true);
// SetNeedsCommit should begin the frame on the next BeginImplFrame.
scheduler_->SetNeedsCommit();
EXPECT_SINGLE_ACTION("SetNeedsBeginFrames(true)", client_);
// Create a BeginFrame with a long deadline to avoid race conditions.
// This is the first BeginFrame, which will be handled immediately.
client_->Reset();
BeginFrameArgs args =
CreateBeginFrameArgsForTesting(BEGINFRAME_FROM_HERE, now_src());
args.deadline += base::TimeDelta::FromHours(1);
fake_external_begin_frame_source()->TestOnBeginFrame(args);
EXPECT_ACTION("WillBeginImplFrame", client_, 0, 2);
EXPECT_ACTION("ScheduledActionSendBeginMainFrame", client_, 1, 2);
EXPECT_TRUE(scheduler_->BeginImplFrameDeadlinePending());
EXPECT_TRUE(client_->needs_begin_frames());
// Queue BeginFrames while we are still handling the previous BeginFrame.
args.frame_time += base::TimeDelta::FromSeconds(1);
fake_external_begin_frame_source()->TestOnBeginFrame(args);
args.frame_time += base::TimeDelta::FromSeconds(1);
fake_external_begin_frame_source()->TestOnBeginFrame(args);
// If we don't swap on the deadline, we wait for the next BeginImplFrame.
client_->Reset();
task_runner().RunPendingTasks(); // Run posted deadline.
EXPECT_NO_ACTION(client_);
EXPECT_FALSE(scheduler_->BeginImplFrameDeadlinePending());
EXPECT_TRUE(client_->needs_begin_frames());
// NotifyReadyToCommit should trigger the commit.
client_->Reset();
scheduler_->NotifyBeginMainFrameStarted();
scheduler_->NotifyReadyToCommit();
EXPECT_SINGLE_ACTION("ScheduledActionCommit", client_);
EXPECT_TRUE(client_->needs_begin_frames());
client_->Reset();
EXPECT_FALSE(scheduler_->IsBeginRetroFrameArgsEmpty());
scheduler_->DidLoseOutputSurface();
EXPECT_ACTION("ScheduledActionBeginOutputSurfaceCreation", client_, 0, 3);
EXPECT_ACTION("SetNeedsBeginFrames(false)", client_, 1, 3);
EXPECT_ACTION("SendBeginMainFrameNotExpectedSoon", client_, 2, 3);
EXPECT_TRUE(scheduler_->IsBeginRetroFrameArgsEmpty());
// Posted BeginRetroFrame is aborted.
client_->Reset();
task_runner().RunPendingTasks();
EXPECT_NO_ACTION(client_);
}
TEST_F(SchedulerTest, DidLoseOutputSurfaceDuringBeginRetroFrameRunning) {
scheduler_settings_.use_external_begin_frame_source = true;
SetUpScheduler(true);
// SetNeedsCommit should begin the frame on the next BeginImplFrame.
scheduler_->SetNeedsCommit();
EXPECT_SINGLE_ACTION("SetNeedsBeginFrames(true)", client_);
// Create a BeginFrame with a long deadline to avoid race conditions.
// This is the first BeginFrame, which will be handled immediately.
client_->Reset();
BeginFrameArgs args =
CreateBeginFrameArgsForTesting(BEGINFRAME_FROM_HERE, now_src());
args.deadline += base::TimeDelta::FromHours(1);
fake_external_begin_frame_source()->TestOnBeginFrame(args);
EXPECT_ACTION("WillBeginImplFrame", client_, 0, 2);
EXPECT_ACTION("ScheduledActionSendBeginMainFrame", client_, 1, 2);
EXPECT_TRUE(scheduler_->BeginImplFrameDeadlinePending());
EXPECT_TRUE(client_->needs_begin_frames());
// Queue BeginFrames while we are still handling the previous BeginFrame.
args.frame_time += base::TimeDelta::FromSeconds(1);
fake_external_begin_frame_source()->TestOnBeginFrame(args);
args.frame_time += base::TimeDelta::FromSeconds(1);
fake_external_begin_frame_source()->TestOnBeginFrame(args);
// If we don't swap on the deadline, we wait for the next BeginImplFrame.
client_->Reset();
task_runner().RunPendingTasks(); // Run posted deadline.
EXPECT_NO_ACTION(client_);
EXPECT_FALSE(scheduler_->BeginImplFrameDeadlinePending());
EXPECT_TRUE(client_->needs_begin_frames());
// NotifyReadyToCommit should trigger the commit.
client_->Reset();
scheduler_->NotifyBeginMainFrameStarted();
scheduler_->NotifyReadyToCommit();
EXPECT_SINGLE_ACTION("ScheduledActionCommit", client_);
EXPECT_TRUE(client_->needs_begin_frames());
// BeginImplFrame should prepare the draw.
client_->Reset();
task_runner().RunPendingTasks(); // Run posted BeginRetroFrame.
EXPECT_ACTION("WillBeginImplFrame", client_, 0, 2);
EXPECT_ACTION("ScheduledActionAnimate", client_, 1, 2);
EXPECT_TRUE(scheduler_->BeginImplFrameDeadlinePending());
EXPECT_TRUE(client_->needs_begin_frames());
client_->Reset();
EXPECT_FALSE(scheduler_->IsBeginRetroFrameArgsEmpty());
scheduler_->DidLoseOutputSurface();
EXPECT_ACTION("SetNeedsBeginFrames(false)", client_, 0, 2);
EXPECT_ACTION("SendBeginMainFrameNotExpectedSoon", client_, 1, 2);
EXPECT_TRUE(scheduler_->IsBeginRetroFrameArgsEmpty());
// BeginImplFrame deadline should abort drawing.
client_->Reset();
task_runner().RunPendingTasks(); // Run posted deadline.
EXPECT_SINGLE_ACTION("ScheduledActionBeginOutputSurfaceCreation", client_);
EXPECT_FALSE(scheduler_->BeginImplFrameDeadlinePending());
EXPECT_FALSE(client_->needs_begin_frames());
// No more BeginRetroFrame because BeginRetroFrame queue is cleared.
client_->Reset();
task_runner().RunPendingTasks();
EXPECT_NO_ACTION(client_);
}
TEST_F(SchedulerTest,
StopBeginFrameAfterDidLoseOutputSurfaceWithSyntheticBeginFrameSource) {
SetUpScheduler(true);
// SetNeedsCommit should begin the frame on the next BeginImplFrame.
EXPECT_FALSE(scheduler_->frame_source().NeedsBeginFrames());
scheduler_->SetNeedsCommit();
EXPECT_TRUE(scheduler_->frame_source().NeedsBeginFrames());
client_->Reset();
task_runner().RunPendingTasks(); // Run posted Tick.
EXPECT_ACTION("WillBeginImplFrame", client_, 0, 2);
EXPECT_ACTION("ScheduledActionSendBeginMainFrame", client_, 1, 2);
EXPECT_TRUE(scheduler_->BeginImplFrameDeadlinePending());
EXPECT_TRUE(scheduler_->frame_source().NeedsBeginFrames());
// NotifyReadyToCommit should trigger the commit.
client_->Reset();
scheduler_->NotifyBeginMainFrameStarted();
scheduler_->NotifyReadyToCommit();
EXPECT_SINGLE_ACTION("ScheduledActionCommit", client_);
EXPECT_TRUE(scheduler_->frame_source().NeedsBeginFrames());
client_->Reset();
scheduler_->DidLoseOutputSurface();
EXPECT_SINGLE_ACTION("SendBeginMainFrameNotExpectedSoon", client_);
EXPECT_FALSE(scheduler_->frame_source().NeedsBeginFrames());
client_->Reset();
task_runner().RunPendingTasks(); // Run posted deadline.
EXPECT_SINGLE_ACTION("ScheduledActionBeginOutputSurfaceCreation", client_);
EXPECT_FALSE(scheduler_->frame_source().NeedsBeginFrames());
}
TEST_F(SchedulerTest, ScheduledActionActivateAfterBecomingInvisible) {
scheduler_settings_.impl_side_painting = true;
scheduler_settings_.use_external_begin_frame_source = true;
SetUpScheduler(true);
// SetNeedsCommit should begin the frame.
scheduler_->SetNeedsCommit();
EXPECT_SINGLE_ACTION("SetNeedsBeginFrames(true)", client_);
client_->Reset();
EXPECT_SCOPED(AdvanceFrame());
EXPECT_ACTION("WillBeginImplFrame", client_, 0, 2);
EXPECT_ACTION("ScheduledActionSendBeginMainFrame", client_, 1, 2);
EXPECT_TRUE(scheduler_->BeginImplFrameDeadlinePending());
client_->Reset();
scheduler_->NotifyBeginMainFrameStarted();
scheduler_->NotifyReadyToCommit();
EXPECT_SINGLE_ACTION("ScheduledActionCommit", client_);
client_->Reset();
scheduler_->SetVisible(false);
// Sync tree should be forced to activate.
EXPECT_ACTION("SetNeedsBeginFrames(false)", client_, 0, 2);
EXPECT_ACTION("ScheduledActionActivateSyncTree", client_, 1, 2);
}
TEST_F(SchedulerTest, SchedulerPowerMonitoring) {
scheduler_settings_.disable_hi_res_timer_tasks_on_battery = true;
SetUpScheduler(true);
base::TimeTicks before_deadline, after_deadline;
scheduler_->SetNeedsCommit();
scheduler_->SetNeedsRedraw();
client_->Reset();
// On non-battery power
EXPECT_FALSE(PowerMonitor()->IsOnBatteryPower());
EXPECT_SCOPED(AdvanceFrame());
client_->Reset();
before_deadline = now_src()->Now();
EXPECT_TRUE(
task_runner().RunTasksWhile(client_->ImplFrameDeadlinePending(true)));
after_deadline = now_src()->Now();
// We post a non-zero deadline task when not on battery
EXPECT_LT(before_deadline, after_deadline);
// Switch to battery power
PowerMonitorSource()->GeneratePowerStateEvent(true);
EXPECT_TRUE(PowerMonitor()->IsOnBatteryPower());
EXPECT_SCOPED(AdvanceFrame());
scheduler_->SetNeedsCommit();
scheduler_->SetNeedsRedraw();
client_->Reset();
before_deadline = now_src()->Now();
EXPECT_TRUE(
task_runner().RunTasksWhile(client_->ImplFrameDeadlinePending(true)));
after_deadline = now_src()->Now();
// We post a zero deadline task when on battery
EXPECT_EQ(before_deadline, after_deadline);
// Switch to non-battery power
PowerMonitorSource()->GeneratePowerStateEvent(false);
EXPECT_FALSE(PowerMonitor()->IsOnBatteryPower());
EXPECT_SCOPED(AdvanceFrame());
scheduler_->SetNeedsCommit();
scheduler_->SetNeedsRedraw();
client_->Reset();
// Same as before
before_deadline = now_src()->Now();
EXPECT_TRUE(
task_runner().RunTasksWhile(client_->ImplFrameDeadlinePending(true)));
after_deadline = now_src()->Now();
}
TEST_F(SchedulerTest,
SimulateWindowsLowResolutionTimerOnBattery_PrioritizeImplLatencyOff) {
scheduler_settings_.use_external_begin_frame_source = true;
SetUpScheduler(true);
// Set needs commit so that the scheduler tries to wait for the main thread
scheduler_->SetNeedsCommit();
// Set needs redraw so that the scheduler doesn't wait too long
scheduler_->SetNeedsRedraw();
client_->Reset();
// Switch to battery power
PowerMonitorSource()->GeneratePowerStateEvent(true);
EXPECT_TRUE(PowerMonitor()->IsOnBatteryPower());
EXPECT_SCOPED(AdvanceFrame());
scheduler_->SetNeedsCommit();
scheduler_->SetNeedsRedraw();
client_->Reset();
// Disable auto-advancing of now_src
task_runner().SetAutoAdvanceNowToPendingTasks(false);
// Deadline task is pending
EXPECT_TRUE(scheduler_->BeginImplFrameDeadlinePending());
task_runner().RunPendingTasks();
// Deadline task is still pending
EXPECT_TRUE(scheduler_->BeginImplFrameDeadlinePending());
// Advance now by 15 ms - same as windows low res timer
now_src()->AdvanceNowMicroseconds(15000);
EXPECT_TRUE(scheduler_->BeginImplFrameDeadlinePending());
task_runner().RunPendingTasks();
// Deadline task finally completes
EXPECT_FALSE(scheduler_->BeginImplFrameDeadlinePending());
}
TEST_F(SchedulerTest,
SimulateWindowsLowResolutionTimerOnBattery_PrioritizeImplLatencyOn) {
scheduler_settings_.disable_hi_res_timer_tasks_on_battery = true;
scheduler_settings_.use_external_begin_frame_source = true;
SetUpScheduler(true);
// Set needs commit so that the scheduler tries to wait for the main thread
scheduler_->SetNeedsCommit();
// Set needs redraw so that the scheduler doesn't wait too long
scheduler_->SetNeedsRedraw();
client_->Reset();
// Switch to battery power
PowerMonitorSource()->GeneratePowerStateEvent(true);
EXPECT_TRUE(PowerMonitor()->IsOnBatteryPower());
EXPECT_SCOPED(AdvanceFrame());
scheduler_->SetNeedsCommit();
scheduler_->SetNeedsRedraw();
client_->Reset();
// Disable auto-advancing of now_src
task_runner().SetAutoAdvanceNowToPendingTasks(false);
// Deadline task is pending
EXPECT_TRUE(scheduler_->BeginImplFrameDeadlinePending());
task_runner().RunPendingTasks();
// Deadline task runs immediately
EXPECT_FALSE(scheduler_->BeginImplFrameDeadlinePending());
}
// Tests to ensure frame sources can be successfully changed while drawing.
TEST_F(SchedulerTest, SwitchFrameSourceToUnthrottled) {
scheduler_settings_.use_external_begin_frame_source = true;
SetUpScheduler(true);
// SetNeedsRedraw should begin the frame on the next BeginImplFrame.
scheduler_->SetNeedsRedraw();
EXPECT_SINGLE_ACTION("SetNeedsBeginFrames(true)", client_);
client_->Reset();
EXPECT_SCOPED(AdvanceFrame());
EXPECT_ACTION("WillBeginImplFrame", client_, 0, 2);
EXPECT_ACTION("ScheduledActionAnimate", client_, 1, 2);
EXPECT_TRUE(scheduler_->BeginImplFrameDeadlinePending());
EXPECT_TRUE(client_->needs_begin_frames());
client_->Reset();
task_runner().RunPendingTasks(); // Run posted deadline.
EXPECT_ACTION("ScheduledActionDrawAndSwapIfPossible", client_, 0, 1);
scheduler_->SetNeedsRedraw();
// Switch to an unthrottled frame source.
scheduler_->SetThrottleFrameProduction(false);
client_->Reset();
// Unthrottled frame source will immediately begin a new frame.
task_runner().RunPendingTasks(); // Run posted BeginFrame.
EXPECT_ACTION("WillBeginImplFrame", client_, 0, 2);
EXPECT_ACTION("ScheduledActionAnimate", client_, 1, 2);
EXPECT_TRUE(scheduler_->BeginImplFrameDeadlinePending());
client_->Reset();
// If we don't swap on the deadline, we wait for the next BeginFrame.
task_runner().RunPendingTasks(); // Run posted deadline.
EXPECT_ACTION("ScheduledActionDrawAndSwapIfPossible", client_, 0, 1);
EXPECT_FALSE(scheduler_->BeginImplFrameDeadlinePending());
client_->Reset();
}
// Tests to ensure frame sources can be successfully changed while a frame
// deadline is pending.
TEST_F(SchedulerTest, SwitchFrameSourceToUnthrottledBeforeDeadline) {
scheduler_settings_.use_external_begin_frame_source = true;
SetUpScheduler(true);
// SetNeedsRedraw should begin the frame on the next BeginImplFrame.
scheduler_->SetNeedsRedraw();
EXPECT_SINGLE_ACTION("SetNeedsBeginFrames(true)", client_);
client_->Reset();
EXPECT_SCOPED(AdvanceFrame());
EXPECT_ACTION("WillBeginImplFrame", client_, 0, 2);
EXPECT_ACTION("ScheduledActionAnimate", client_, 1, 2);
// Switch to an unthrottled frame source before the frame deadline is hit.
scheduler_->SetThrottleFrameProduction(false);
client_->Reset();
EXPECT_TRUE(scheduler_->BeginImplFrameDeadlinePending());
EXPECT_TRUE(client_->needs_begin_frames());
client_->Reset();
task_runner().RunPendingTasks(); // Run posted deadline and BeginFrame.
EXPECT_ACTION("ScheduledActionDrawAndSwapIfPossible", client_, 0, 2);
// Unthrottled frame source will immediately begin a new frame.
EXPECT_ACTION("WillBeginImplFrame", client_, 1, 2);
scheduler_->SetNeedsRedraw();
client_->Reset();
task_runner().RunPendingTasks(); // Run posted deadline.
EXPECT_ACTION("ScheduledActionAnimate", client_, 0, 2);
EXPECT_ACTION("ScheduledActionDrawAndSwapIfPossible", client_, 1, 2);
EXPECT_FALSE(scheduler_->BeginImplFrameDeadlinePending());
client_->Reset();
}
// Tests to ensure that the active frame source can successfully be changed from
// unthrottled to throttled.
TEST_F(SchedulerTest, SwitchFrameSourceToThrottled) {
scheduler_settings_.throttle_frame_production = false;
scheduler_settings_.use_external_begin_frame_source = true;
SetUpScheduler(true);
scheduler_->SetNeedsRedraw();
EXPECT_NO_ACTION(client_);
client_->Reset();
task_runner().RunPendingTasks(); // Run posted BeginFrame.
EXPECT_ACTION("WillBeginImplFrame", client_, 0, 2);
EXPECT_ACTION("ScheduledActionAnimate", client_, 1, 2);
EXPECT_TRUE(scheduler_->BeginImplFrameDeadlinePending());
client_->Reset();
task_runner().RunPendingTasks(); // Run posted deadline.
EXPECT_ACTION("ScheduledActionDrawAndSwapIfPossible", client_, 0, 1);
EXPECT_FALSE(scheduler_->BeginImplFrameDeadlinePending());
client_->Reset();
// Switch to a throttled frame source.
scheduler_->SetThrottleFrameProduction(true);
client_->Reset();
// SetNeedsRedraw should begin the frame on the next BeginImplFrame.
scheduler_->SetNeedsRedraw();
task_runner().RunPendingTasks();
EXPECT_NO_ACTION(client_);
client_->Reset();
EXPECT_SCOPED(AdvanceFrame());
EXPECT_ACTION("WillBeginImplFrame", client_, 0, 2);
EXPECT_ACTION("ScheduledActionAnimate", client_, 1, 2);
EXPECT_TRUE(scheduler_->BeginImplFrameDeadlinePending());
EXPECT_TRUE(client_->needs_begin_frames());
client_->Reset();
task_runner().RunPendingTasks(); // Run posted deadline.
EXPECT_ACTION("ScheduledActionDrawAndSwapIfPossible", client_, 0, 1);
}
// Tests to ensure that we send a BeginMainFrameNotExpectedSoon when expected.
TEST_F(SchedulerTest, SendBeginMainFrameNotExpectedSoon) {
scheduler_settings_.use_external_begin_frame_source = true;
SetUpScheduler(true);
// SetNeedsCommit should begin the frame on the next BeginImplFrame.
scheduler_->SetNeedsCommit();
EXPECT_SINGLE_ACTION("SetNeedsBeginFrames(true)", client_);
client_->Reset();
// Trigger a frame draw.
EXPECT_SCOPED(AdvanceFrame());
scheduler_->NotifyBeginMainFrameStarted();
scheduler_->NotifyReadyToCommit();
task_runner().RunPendingTasks();
EXPECT_ACTION("WillBeginImplFrame", client_, 0, 5);
EXPECT_ACTION("ScheduledActionSendBeginMainFrame", client_, 1, 5);
EXPECT_ACTION("ScheduledActionCommit", client_, 2, 5);
EXPECT_ACTION("ScheduledActionAnimate", client_, 3, 5);
EXPECT_ACTION("ScheduledActionDrawAndSwapIfPossible", client_, 4, 5);
client_->Reset();
// The following BeginImplFrame deadline should SetNeedsBeginFrame(false)
// and send a SendBeginMainFrameNotExpectedSoon.
EXPECT_SCOPED(AdvanceFrame());
EXPECT_SINGLE_ACTION("WillBeginImplFrame", client_);
EXPECT_TRUE(scheduler_->BeginImplFrameDeadlinePending());
client_->Reset();
task_runner().RunPendingTasks(); // Run posted deadline.
EXPECT_ACTION("SetNeedsBeginFrames(false)", client_, 0, 2);
EXPECT_ACTION("SendBeginMainFrameNotExpectedSoon", client_, 1, 2);
client_->Reset();
}
} // namespace
} // namespace cc