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// Copyright 2014 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/surfaces/onscreen_display_client.h"
#include "base/trace_event/trace_event.h"
#include "cc/output/output_surface.h"
#include "cc/surfaces/surface_display_output_surface.h"
#include "cc/surfaces/surface_factory.h"
#include "cc/surfaces/surface_manager.h"
namespace cc {
OnscreenDisplayClient::OnscreenDisplayClient(
scoped_ptr<OutputSurface> output_surface,
SurfaceManager* manager,
SharedBitmapManager* bitmap_manager,
gpu::GpuMemoryBufferManager* gpu_memory_buffer_manager,
const RendererSettings& settings,
scoped_refptr<base::SingleThreadTaskRunner> task_runner)
: output_surface_(output_surface.Pass()),
display_(new Display(this,
manager,
bitmap_manager,
gpu_memory_buffer_manager,
settings)),
task_runner_(task_runner),
scheduled_draw_(false),
output_surface_lost_(false),
deferred_draw_(false),
pending_frames_(0),
weak_ptr_factory_(this) {
}
OnscreenDisplayClient::~OnscreenDisplayClient() {
}
bool OnscreenDisplayClient::Initialize() {
return display_->Initialize(output_surface_.Pass());
}
void OnscreenDisplayClient::CommitVSyncParameters(base::TimeTicks timebase,
base::TimeDelta interval) {
surface_display_output_surface_->ReceivedVSyncParameters(timebase, interval);
}
void OnscreenDisplayClient::DisplayDamaged() {
if (scheduled_draw_ || deferred_draw_)
return;
TRACE_EVENT0("content", "OnscreenDisplayClient::DisplayDamaged");
if (pending_frames_ >= display_->GetMaxFramesPending()) {
deferred_draw_ = true;
} else {
ScheduleDraw();
}
}
void OnscreenDisplayClient::ScheduleDraw() {
DCHECK(!deferred_draw_);
DCHECK(!scheduled_draw_);
scheduled_draw_ = true;
task_runner_->PostTask(FROM_HERE, base::Bind(&OnscreenDisplayClient::Draw,
weak_ptr_factory_.GetWeakPtr()));
}
void OnscreenDisplayClient::OutputSurfaceLost() {
output_surface_lost_ = true;
surface_display_output_surface_->DidLoseOutputSurface();
}
void OnscreenDisplayClient::Draw() {
TRACE_EVENT0("content", "OnscreenDisplayClient::Draw");
if (output_surface_lost_)
return;
scheduled_draw_ = false;
display_->Draw();
}
void OnscreenDisplayClient::DidSwapBuffers() {
pending_frames_++;
}
void OnscreenDisplayClient::DidSwapBuffersComplete() {
pending_frames_--;
if ((pending_frames_ < display_->GetMaxFramesPending()) && deferred_draw_) {
deferred_draw_ = false;
ScheduleDraw();
}
}
void OnscreenDisplayClient::SetMemoryPolicy(const ManagedMemoryPolicy& policy) {
surface_display_output_surface_->SetMemoryPolicy(policy);
}
} // namespace cc
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