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// Copyright (c) 2012 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/renderer/gpu/compositor_output_surface.h"
#include "base/message_loop_proxy.h"
#include "content/common/view_messages.h"
#include "content/renderer/render_thread_impl.h"
#include "ipc/ipc_forwarding_message_filter.h"
#include "ipc/ipc_sync_channel.h"
#include "third_party/WebKit/Source/Platform/chromium/public/WebCompositorOutputSurfaceClient.h"
#include "third_party/WebKit/Source/Platform/chromium/public/WebGraphicsContext3D.h"
using WebKit::WebGraphicsContext3D;
using WebKit::WebCompositorSoftwareOutputDevice;
//------------------------------------------------------------------------------
// static
IPC::ForwardingMessageFilter* CompositorOutputSurface::CreateFilter(
base::TaskRunner* target_task_runner)
{
uint32 messages_to_filter[] = {ViewMsg_UpdateVSyncParameters::ID};
return new IPC::ForwardingMessageFilter(
messages_to_filter, arraysize(messages_to_filter),
target_task_runner);
}
CompositorOutputSurface::CompositorOutputSurface(
int32 routing_id,
WebGraphicsContext3D* context3D,
WebCompositorSoftwareOutputDevice* software_device)
: output_surface_filter_(
RenderThreadImpl::current()->compositor_output_surface_filter()),
client_(NULL),
routing_id_(routing_id),
context3D_(context3D),
software_device_(software_device) {
DCHECK(output_surface_filter_);
capabilities_.hasParentCompositor = false;
DetachFromThread();
}
CompositorOutputSurface::~CompositorOutputSurface() {
DCHECK(CalledOnValidThread());
if (!client_)
return;
output_surface_proxy_->ClearOutputSurface();
output_surface_filter_->RemoveRoute(routing_id_);
}
const WebKit::WebCompositorOutputSurface::Capabilities&
CompositorOutputSurface::capabilities() const {
DCHECK(CalledOnValidThread());
return capabilities_;
}
bool CompositorOutputSurface::bindToClient(
WebKit::WebCompositorOutputSurfaceClient* client) {
DCHECK(CalledOnValidThread());
DCHECK(!client_);
if (context3D_.get()) {
if (!context3D_->makeContextCurrent())
return false;
}
client_ = client;
output_surface_proxy_ = new CompositorOutputSurfaceProxy(this);
output_surface_filter_->AddRoute(
routing_id_,
base::Bind(&CompositorOutputSurfaceProxy::OnMessageReceived,
output_surface_proxy_));
return true;
}
WebGraphicsContext3D* CompositorOutputSurface::context3D() const {
DCHECK(CalledOnValidThread());
return context3D_.get();
}
WebCompositorSoftwareOutputDevice* CompositorOutputSurface::softwareDevice()
const {
return software_device_.get();
}
void CompositorOutputSurface::sendFrameToParentCompositor(
const WebKit::WebCompositorFrame&) {
DCHECK(CalledOnValidThread());
NOTREACHED();
}
void CompositorOutputSurface::OnMessageReceived(const IPC::Message& message) {
DCHECK(CalledOnValidThread());
if (!client_)
return;
IPC_BEGIN_MESSAGE_MAP(CompositorOutputSurface, message)
IPC_MESSAGE_HANDLER(ViewMsg_UpdateVSyncParameters, OnUpdateVSyncParameters);
IPC_END_MESSAGE_MAP()
}
void CompositorOutputSurface::OnUpdateVSyncParameters(
base::TimeTicks timebase,
base::TimeDelta interval) {
DCHECK(CalledOnValidThread());
DCHECK(client_);
double monotonicTimebase = timebase.ToInternalValue() /
static_cast<double>(base::Time::kMicrosecondsPerSecond);
double intervalInSeconds = interval.ToInternalValue() /
static_cast<double>(base::Time::kMicrosecondsPerSecond);
client_->onVSyncParametersChanged(monotonicTimebase, intervalInSeconds);
}
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