// 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/renderer/child_frame_compositing_helper.h"
#include "cc/blink/web_layer_impl.h"
#include "cc/layers/delegated_frame_provider.h"
#include "cc/layers/delegated_frame_resource_collection.h"
#include "cc/layers/delegated_renderer_layer.h"
#include "cc/layers/solid_color_layer.h"
#include "cc/output/context_provider.h"
#include "cc/output/copy_output_request.h"
#include "cc/output/copy_output_result.h"
#include "cc/resources/single_release_callback.h"
#include "content/common/browser_plugin/browser_plugin_messages.h"
#include "content/common/frame_messages.h"
#include "content/common/gpu/client/context_provider_command_buffer.h"
#include "content/renderer/browser_plugin/browser_plugin.h"
#include "content/renderer/browser_plugin/browser_plugin_manager.h"
#include "content/renderer/render_frame_impl.h"
#include "content/renderer/render_frame_proxy.h"
#include "content/renderer/render_thread_impl.h"
#include "skia/ext/image_operations.h"
#include "third_party/WebKit/public/web/WebFrame.h"
#include "third_party/WebKit/public/web/WebPluginContainer.h"
#include "third_party/khronos/GLES2/gl2.h"
#include "ui/gfx/size_conversions.h"
#include "ui/gfx/skia_util.h"
namespace content {
ChildFrameCompositingHelper*
ChildFrameCompositingHelper::CreateForBrowserPlugin(
const base::WeakPtr<BrowserPlugin>& browser_plugin) {
return new ChildFrameCompositingHelper(
browser_plugin, NULL, NULL, browser_plugin->render_view_routing_id());
}
ChildFrameCompositingHelper*
ChildFrameCompositingHelper::CreateForRenderFrameProxy(
RenderFrameProxy* render_frame_proxy) {
return new ChildFrameCompositingHelper(base::WeakPtr<BrowserPlugin>(),
render_frame_proxy->web_frame(),
render_frame_proxy,
render_frame_proxy->routing_id());
}
ChildFrameCompositingHelper::ChildFrameCompositingHelper(
const base::WeakPtr<BrowserPlugin>& browser_plugin,
blink::WebFrame* frame,
RenderFrameProxy* render_frame_proxy,
int host_routing_id)
: host_routing_id_(host_routing_id),
last_route_id_(0),
last_output_surface_id_(0),
last_host_id_(0),
ack_pending_(true),
opaque_(true),
browser_plugin_(browser_plugin),
render_frame_proxy_(render_frame_proxy),
frame_(frame) {}
ChildFrameCompositingHelper::~ChildFrameCompositingHelper() {}
BrowserPluginManager* ChildFrameCompositingHelper::GetBrowserPluginManager() {
if (!browser_plugin_)
return NULL;
return browser_plugin_->browser_plugin_manager();
}
blink::WebPluginContainer* ChildFrameCompositingHelper::GetContainer() {
if (!browser_plugin_)
return NULL;
return browser_plugin_->container();
}
int ChildFrameCompositingHelper::GetInstanceID() {
if (!browser_plugin_)
return 0;
return browser_plugin_->browser_plugin_instance_id();
}
void ChildFrameCompositingHelper::SendCompositorFrameSwappedACKToBrowser(
FrameHostMsg_CompositorFrameSwappedACK_Params& params) {
// This function will be removed when BrowserPluginManager is removed and
// BrowserPlugin is modified to use a RenderFrame.
if (GetBrowserPluginManager()) {
GetBrowserPluginManager()->Send(
new BrowserPluginHostMsg_CompositorFrameSwappedACK(
host_routing_id_, GetInstanceID(), params));
} else if (render_frame_proxy_) {
render_frame_proxy_->Send(
new FrameHostMsg_CompositorFrameSwappedACK(host_routing_id_, params));
}
}
void ChildFrameCompositingHelper::SendReclaimCompositorResourcesToBrowser(
FrameHostMsg_ReclaimCompositorResources_Params& params) {
// This function will be removed when BrowserPluginManager is removed and
// BrowserPlugin is modified to use a RenderFrame.
if (GetBrowserPluginManager()) {
GetBrowserPluginManager()->Send(
new BrowserPluginHostMsg_ReclaimCompositorResources(
host_routing_id_, GetInstanceID(), params));
} else if (render_frame_proxy_) {
render_frame_proxy_->Send(
new FrameHostMsg_ReclaimCompositorResources(host_routing_id_, params));
}
}
void ChildFrameCompositingHelper::CopyFromCompositingSurface(
int request_id,
gfx::Rect source_rect,
gfx::Size dest_size) {
CHECK(background_layer_.get());
scoped_ptr<cc::CopyOutputRequest> request =
cc::CopyOutputRequest::CreateBitmapRequest(base::Bind(
&ChildFrameCompositingHelper::CopyFromCompositingSurfaceHasResult,
this,
request_id,
dest_size));
request->set_area(source_rect);
background_layer_->RequestCopyOfOutput(request.Pass());
}
void ChildFrameCompositingHelper::DidCommitCompositorFrame() {
if (!resource_collection_.get() || !ack_pending_)
return;
FrameHostMsg_CompositorFrameSwappedACK_Params params;
params.producing_host_id = last_host_id_;
params.producing_route_id = last_route_id_;
params.output_surface_id = last_output_surface_id_;
resource_collection_->TakeUnusedResourcesForChildCompositor(
¶ms.ack.resources);
SendCompositorFrameSwappedACKToBrowser(params);
ack_pending_ = false;
}
void ChildFrameCompositingHelper::EnableCompositing(bool enable) {
if (enable && !background_layer_.get()) {
background_layer_ = cc::SolidColorLayer::Create();
background_layer_->SetMasksToBounds(true);
background_layer_->SetBackgroundColor(
SkColorSetARGBInline(255, 255, 255, 255));
web_layer_.reset(new cc_blink::WebLayerImpl(background_layer_));
}
if (GetContainer()) {
GetContainer()->setWebLayer(enable ? web_layer_.get() : NULL);
} else if (frame_) {
frame_->setRemoteWebLayer(enable ? web_layer_.get() : NULL);
}
}
void ChildFrameCompositingHelper::CheckSizeAndAdjustLayerProperties(
const gfx::Size& new_size,
float device_scale_factor,
cc::Layer* layer) {
if (buffer_size_ != new_size) {
buffer_size_ = new_size;
// The container size is in DIP, so is the layer size.
// Buffer size is in physical pixels, so we need to adjust
// it by the device scale factor.
gfx::Size device_scale_adjusted_size = gfx::ToFlooredSize(
gfx::ScaleSize(buffer_size_, 1.0f / device_scale_factor));
layer->SetBounds(device_scale_adjusted_size);
}
// Manually manage background layer for transparent webview.
if (!opaque_)
background_layer_->SetIsDrawable(false);
}
void ChildFrameCompositingHelper::OnContainerDestroy() {
if (GetContainer())
GetContainer()->setWebLayer(NULL);
if (resource_collection_.get())
resource_collection_->SetClient(NULL);
ack_pending_ = false;
resource_collection_ = NULL;
frame_provider_ = NULL;
delegated_layer_ = NULL;
background_layer_ = NULL;
web_layer_.reset();
}
void ChildFrameCompositingHelper::ChildFrameGone() {
background_layer_->SetBackgroundColor(SkColorSetARGBInline(255, 0, 128, 0));
background_layer_->RemoveAllChildren();
background_layer_->SetIsDrawable(true);
background_layer_->SetContentsOpaque(true);
}
void ChildFrameCompositingHelper::OnCompositorFrameSwapped(
scoped_ptr<cc::CompositorFrame> frame,
int route_id,
uint32 output_surface_id,
int host_id,
base::SharedMemoryHandle handle) {
cc::DelegatedFrameData* frame_data = frame->delegated_frame_data.get();
// Do nothing if we are getting destroyed or have no frame data.
if (!frame_data || !background_layer_.get())
return;
DCHECK(!frame_data->render_pass_list.empty());
cc::RenderPass* root_pass = frame_data->render_pass_list.back();
gfx::Size frame_size = root_pass->output_rect.size();
if (last_route_id_ != route_id ||
last_output_surface_id_ != output_surface_id ||
last_host_id_ != host_id) {
// Resource ids are scoped by the output surface.
// If the originating output surface doesn't match the last one, it
// indicates the guest's output surface may have been recreated, in which
// case we should recreate the DelegatedRendererLayer, to avoid matching
// resources from the old one with resources from the new one which would
// have the same id.
frame_provider_ = NULL;
// Drop the cc::DelegatedFrameResourceCollection so that we will not return
// any resources from the old output surface with the new output surface id.
if (resource_collection_.get()) {
resource_collection_->SetClient(NULL);
if (resource_collection_->LoseAllResources())
SendReturnedDelegatedResources();
resource_collection_ = NULL;
}
last_output_surface_id_ = output_surface_id;
last_route_id_ = route_id;
last_host_id_ = host_id;
}
if (!resource_collection_.get()) {
resource_collection_ = new cc::DelegatedFrameResourceCollection;
resource_collection_->SetClient(this);
}
if (!frame_provider_.get() || frame_provider_->frame_size() != frame_size) {
frame_provider_ = new cc::DelegatedFrameProvider(
resource_collection_.get(), frame->delegated_frame_data.Pass());
if (delegated_layer_.get())
delegated_layer_->RemoveFromParent();
delegated_layer_ =
cc::DelegatedRendererLayer::Create(frame_provider_.get());
delegated_layer_->SetIsDrawable(true);
buffer_size_ = gfx::Size();
SetContentsOpaque(opaque_);
background_layer_->AddChild(delegated_layer_);
} else {
frame_provider_->SetFrameData(frame->delegated_frame_data.Pass());
}
CheckSizeAndAdjustLayerProperties(
frame_data->render_pass_list.back()->output_rect.size(),
frame->metadata.device_scale_factor,
delegated_layer_.get());
ack_pending_ = true;
}
void ChildFrameCompositingHelper::UpdateVisibility(bool visible) {
if (delegated_layer_.get())
delegated_layer_->SetIsDrawable(visible);
}
void ChildFrameCompositingHelper::UnusedResourcesAreAvailable() {
if (ack_pending_)
return;
SendReturnedDelegatedResources();
}
void ChildFrameCompositingHelper::SendReturnedDelegatedResources() {
FrameHostMsg_ReclaimCompositorResources_Params params;
if (resource_collection_.get())
resource_collection_->TakeUnusedResourcesForChildCompositor(
¶ms.ack.resources);
DCHECK(!params.ack.resources.empty());
params.route_id = last_route_id_;
params.output_surface_id = last_output_surface_id_;
params.renderer_host_id = last_host_id_;
SendReclaimCompositorResourcesToBrowser(params);
}
void ChildFrameCompositingHelper::SetContentsOpaque(bool opaque) {
opaque_ = opaque;
if (delegated_layer_.get())
delegated_layer_->SetContentsOpaque(opaque_);
}
void ChildFrameCompositingHelper::CopyFromCompositingSurfaceHasResult(
int request_id,
gfx::Size dest_size,
scoped_ptr<cc::CopyOutputResult> result) {
scoped_ptr<SkBitmap> bitmap;
if (result && result->HasBitmap() && !result->size().IsEmpty())
bitmap = result->TakeBitmap();
SkBitmap resized_bitmap;
if (bitmap) {
resized_bitmap =
skia::ImageOperations::Resize(*bitmap,
skia::ImageOperations::RESIZE_BEST,
dest_size.width(),
dest_size.height());
}
if (GetBrowserPluginManager()) {
GetBrowserPluginManager()->Send(
new BrowserPluginHostMsg_CopyFromCompositingSurfaceAck(
host_routing_id_, GetInstanceID(), request_id, resized_bitmap));
}
}
} // namespace content