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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 "content/browser/compositor/browser_compositor_output_surface.h"
#include "base/bind.h"
#include "base/command_line.h"
#include "base/location.h"
#include "base/strings/string_number_conversions.h"
#include "cc/base/switches.h"
#include "content/browser/compositor/browser_compositor_overlay_candidate_validator.h"
#include "content/browser/compositor/reflector_impl.h"
#include "content/common/gpu/client/context_provider_command_buffer.h"
namespace content {
BrowserCompositorOutputSurface::BrowserCompositorOutputSurface(
const scoped_refptr<cc::ContextProvider>& context_provider,
const scoped_refptr<cc::ContextProvider>& worker_context_provider,
const scoped_refptr<ui::CompositorVSyncManager>& vsync_manager,
scoped_ptr<BrowserCompositorOverlayCandidateValidator>
overlay_candidate_validator)
: OutputSurface(context_provider, worker_context_provider),
vsync_manager_(vsync_manager),
reflector_(nullptr),
use_begin_frame_scheduling_(
base::CommandLine::ForCurrentProcess()
->HasSwitch(cc::switches::kEnableBeginFrameScheduling)) {
overlay_candidate_validator_ = overlay_candidate_validator.Pass();
Initialize();
}
BrowserCompositorOutputSurface::BrowserCompositorOutputSurface(
scoped_ptr<cc::SoftwareOutputDevice> software_device,
const scoped_refptr<ui::CompositorVSyncManager>& vsync_manager)
: OutputSurface(software_device.Pass()),
vsync_manager_(vsync_manager),
reflector_(nullptr),
use_begin_frame_scheduling_(base::CommandLine::ForCurrentProcess()->
HasSwitch(cc::switches::kEnableBeginFrameScheduling)) {
Initialize();
}
BrowserCompositorOutputSurface::~BrowserCompositorOutputSurface() {
if (reflector_)
reflector_->DetachFromOutputSurface();
DCHECK(!reflector_);
if (!HasClient())
return;
// When BeginFrame scheduling is enabled, vsync info is not routed to renderer
// by using |vsync_manager_|. Instead, BeginFrame message is used.
if (!use_begin_frame_scheduling_)
vsync_manager_->RemoveObserver(this);
}
void BrowserCompositorOutputSurface::Initialize() {
capabilities_.max_frames_pending = 1;
capabilities_.adjust_deadline_for_parent = false;
}
bool BrowserCompositorOutputSurface::BindToClient(
cc::OutputSurfaceClient* client) {
if (!OutputSurface::BindToClient(client))
return false;
// Don't want vsync notifications until there is a client.
if (!use_begin_frame_scheduling_)
vsync_manager_->AddObserver(this);
return true;
}
void BrowserCompositorOutputSurface::OnUpdateVSyncParameters(
base::TimeTicks timebase,
base::TimeDelta interval) {
DCHECK(HasClient());
DCHECK(!use_begin_frame_scheduling_);
CommitVSyncParameters(timebase, interval);
}
void BrowserCompositorOutputSurface::OnUpdateVSyncParametersFromGpu(
base::TimeTicks timebase,
base::TimeDelta interval) {
DCHECK(HasClient());
if (use_begin_frame_scheduling_) {
CommitVSyncParameters(timebase, interval);
return;
}
vsync_manager_->UpdateVSyncParameters(timebase, interval);
}
void BrowserCompositorOutputSurface::SetReflector(ReflectorImpl* reflector) {
// Software mirroring is done by doing a GL copy out of the framebuffer - if
// we have overlays then that data will be missing.
if (overlay_candidate_validator_) {
overlay_candidate_validator_->SetSoftwareMirrorMode(reflector != nullptr);
}
reflector_ = reflector;
OnReflectorChanged();
}
void BrowserCompositorOutputSurface::OnReflectorChanged() {
}
base::Closure
BrowserCompositorOutputSurface::CreateCompositionStartedCallback() {
return base::Closure();
}
cc::OverlayCandidateValidator*
BrowserCompositorOutputSurface::GetOverlayCandidateValidator() const {
return overlay_candidate_validator_.get();
}
} // namespace content
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