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-rw-r--r--chromium/cc/scheduler/frame_rate_controller.cc178
1 files changed, 0 insertions, 178 deletions
diff --git a/chromium/cc/scheduler/frame_rate_controller.cc b/chromium/cc/scheduler/frame_rate_controller.cc
deleted file mode 100644
index 243ef6b6291..00000000000
--- a/chromium/cc/scheduler/frame_rate_controller.cc
+++ /dev/null
@@ -1,178 +0,0 @@
-// 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/frame_rate_controller.h"
-
-#include "base/bind.h"
-#include "base/debug/trace_event.h"
-#include "base/location.h"
-#include "base/logging.h"
-#include "base/single_thread_task_runner.h"
-#include "cc/scheduler/delay_based_time_source.h"
-#include "cc/scheduler/time_source.h"
-#include "ui/gfx/frame_time.h"
-
-namespace cc {
-
-class FrameRateControllerTimeSourceAdapter : public TimeSourceClient {
- public:
- static scoped_ptr<FrameRateControllerTimeSourceAdapter> Create(
- FrameRateController* frame_rate_controller) {
- return make_scoped_ptr(
- new FrameRateControllerTimeSourceAdapter(frame_rate_controller));
- }
- virtual ~FrameRateControllerTimeSourceAdapter() {}
-
- virtual void OnTimerTick() OVERRIDE {
- frame_rate_controller_->OnTimerTick();
- }
-
- private:
- explicit FrameRateControllerTimeSourceAdapter(
- FrameRateController* frame_rate_controller)
- : frame_rate_controller_(frame_rate_controller) {}
-
- FrameRateController* frame_rate_controller_;
-};
-
-FrameRateController::FrameRateController(scoped_refptr<TimeSource> timer)
- : client_(NULL),
- num_frames_pending_(0),
- max_swaps_pending_(0),
- interval_(BeginFrameArgs::DefaultInterval()),
- time_source_(timer),
- active_(false),
- is_time_source_throttling_(true),
- manual_tick_pending_(false),
- task_runner_(NULL),
- weak_factory_(this) {
- time_source_client_adapter_ =
- FrameRateControllerTimeSourceAdapter::Create(this);
- time_source_->SetClient(time_source_client_adapter_.get());
-}
-
-FrameRateController::FrameRateController(
- base::SingleThreadTaskRunner* task_runner)
- : client_(NULL),
- num_frames_pending_(0),
- max_swaps_pending_(0),
- interval_(BeginFrameArgs::DefaultInterval()),
- active_(false),
- is_time_source_throttling_(false),
- manual_tick_pending_(false),
- task_runner_(task_runner),
- weak_factory_(this) {}
-
-FrameRateController::~FrameRateController() {
- if (is_time_source_throttling_)
- time_source_->SetActive(false);
-}
-
-BeginFrameArgs FrameRateController::SetActive(bool active) {
- if (active_ == active)
- return BeginFrameArgs();
- TRACE_EVENT1("cc", "FrameRateController::SetActive", "active", active);
- active_ = active;
-
- if (is_time_source_throttling_) {
- base::TimeTicks missed_tick_time = time_source_->SetActive(active);
- if (!missed_tick_time.is_null()) {
- base::TimeTicks deadline = NextTickTime();
- return BeginFrameArgs::Create(
- missed_tick_time, deadline + deadline_adjustment_, interval_);
- }
- } else {
- if (active) {
- PostManualTick();
- } else {
- weak_factory_.InvalidateWeakPtrs();
- manual_tick_pending_ = false;
- }
- }
-
- return BeginFrameArgs();
-}
-
-void FrameRateController::SetMaxSwapsPending(int max_swaps_pending) {
- DCHECK_GE(max_swaps_pending, 0);
- max_swaps_pending_ = max_swaps_pending;
-}
-
-void FrameRateController::SetTimebaseAndInterval(base::TimeTicks timebase,
- base::TimeDelta interval) {
- interval_ = interval;
- if (is_time_source_throttling_)
- time_source_->SetTimebaseAndInterval(timebase, interval);
-}
-
-void FrameRateController::SetDeadlineAdjustment(base::TimeDelta delta) {
- deadline_adjustment_ = delta;
-}
-
-void FrameRateController::OnTimerTick() {
- TRACE_EVENT0("cc", "FrameRateController::OnTimerTick");
- DCHECK(active_);
-
- // Check if we have too many frames in flight.
- bool throttled =
- max_swaps_pending_ && num_frames_pending_ >= max_swaps_pending_;
- TRACE_COUNTER_ID1("cc", "ThrottledCompositor", task_runner_, throttled);
-
- if (client_) {
- // TODO(brianderson): Use an adaptive parent compositor deadline.
- base::TimeTicks frame_time = LastTickTime();
- base::TimeTicks deadline = NextTickTime();
- BeginFrameArgs args = BeginFrameArgs::Create(
- frame_time, deadline + deadline_adjustment_, interval_);
- client_->FrameRateControllerTick(throttled, args);
- }
-
- if (!is_time_source_throttling_ && !throttled)
- PostManualTick();
-}
-
-void FrameRateController::PostManualTick() {
- if (active_ && !manual_tick_pending_) {
- manual_tick_pending_ = true;
- task_runner_->PostTask(FROM_HERE,
- base::Bind(&FrameRateController::ManualTick,
- weak_factory_.GetWeakPtr()));
- }
-}
-
-void FrameRateController::ManualTick() {
- manual_tick_pending_ = false;
- OnTimerTick();
-}
-
-void FrameRateController::DidSwapBuffers() {
- num_frames_pending_++;
-}
-
-void FrameRateController::DidSwapBuffersComplete() {
- DCHECK_GT(num_frames_pending_, 0);
- num_frames_pending_--;
- if (!is_time_source_throttling_)
- PostManualTick();
-}
-
-void FrameRateController::DidAbortAllPendingFrames() {
- num_frames_pending_ = 0;
-}
-
-base::TimeTicks FrameRateController::NextTickTime() {
- if (is_time_source_throttling_)
- return time_source_->NextTickTime();
-
- return base::TimeTicks();
-}
-
-base::TimeTicks FrameRateController::LastTickTime() {
- if (is_time_source_throttling_)
- return time_source_->LastTickTime();
-
- return gfx::FrameTime::Now();
-}
-
-} // namespace cc