blob: 76167c9f32716d9412c7b8104e672d6919484ff8 [file] [log] [blame]
// 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/surface_factory.h"
#include <utility>
#include "base/memory/ptr_util.h"
#include "base/trace_event/trace_event.h"
#include "cc/output/compositor_frame.h"
#include "cc/output/copy_output_request.h"
#include "cc/surfaces/surface.h"
#include "cc/surfaces/surface_factory_client.h"
#include "cc/surfaces/surface_info.h"
#include "cc/surfaces/surface_manager.h"
#include "ui/gfx/geometry/size.h"
namespace cc {
SurfaceFactory::SurfaceFactory(
const FrameSinkId& frame_sink_id,
SurfaceManager* manager,
SurfaceFactoryClient* client,
SurfaceResourceHolderClient* resource_holder_client)
: frame_sink_id_(frame_sink_id),
manager_(manager),
client_(client),
holder_(resource_holder_client),
needs_sync_points_(true),
weak_factory_(this) {}
SurfaceFactory::~SurfaceFactory() {
// This is to prevent troubles when a factory that resides in a client is
// being destroyed. In such cases, the factory might attempt to return
// resources to the client while it's in the middle of destruction and this
// could cause a crash or some unexpected behaviour.
DCHECK(!current_surface_) << "Please call EvictSurface before destruction";
}
void SurfaceFactory::EvictSurface() {
if (!current_surface_)
return;
Destroy(std::move(current_surface_));
}
void SurfaceFactory::SubmitCompositorFrame(
const LocalSurfaceId& local_surface_id,
CompositorFrame frame,
const DrawCallback& callback,
const WillDrawCallback& will_draw_callback) {
TRACE_EVENT0("cc", "SurfaceFactory::SubmitCompositorFrame");
DCHECK(local_surface_id.is_valid());
for (ui::LatencyInfo& latency : frame.metadata.latency_info) {
if (latency.latency_components().size() > 0) {
latency.AddLatencyNumber(ui::DISPLAY_COMPOSITOR_RECEIVED_FRAME_COMPONENT,
0, 0);
}
}
std::unique_ptr<Surface> surface;
bool create_new_surface =
(!current_surface_ ||
local_surface_id != current_surface_->surface_id().local_surface_id());
if (!create_new_surface) {
surface = std::move(current_surface_);
} else {
surface = Create(local_surface_id);
}
surface->QueueFrame(std::move(frame), callback, will_draw_callback);
if (current_surface_ && create_new_surface) {
surface->SetPreviousFrameSurface(current_surface_.get());
Destroy(std::move(current_surface_));
}
current_surface_ = std::move(surface);
}
void SurfaceFactory::RequestCopyOfSurface(
std::unique_ptr<CopyOutputRequest> copy_request) {
if (!current_surface_) {
copy_request->SendEmptyResult();
return;
}
DCHECK(current_surface_->factory().get() == this);
current_surface_->RequestCopyOfOutput(std::move(copy_request));
manager_->SurfaceModified(current_surface_->surface_id());
}
void SurfaceFactory::ClearSurface() {
if (!current_surface_)
return;
current_surface_->EvictFrame();
manager_->SurfaceModified(current_surface_->surface_id());
}
void SurfaceFactory::ReceiveFromChild(
const TransferableResourceArray& resources) {
holder_.ReceiveFromChild(resources);
}
void SurfaceFactory::RefResources(const TransferableResourceArray& resources) {
holder_.RefResources(resources);
}
void SurfaceFactory::UnrefResources(const ReturnedResourceArray& resources) {
holder_.UnrefResources(resources);
}
void SurfaceFactory::OnSurfaceActivated(Surface* surface) {
DCHECK(surface->HasActiveFrame());
if (!seen_first_frame_activation_) {
seen_first_frame_activation_ = true;
const CompositorFrame& frame = surface->GetActiveFrame();
// CompositorFrames might not be populated with a RenderPass in unit tests.
gfx::Size frame_size;
if (!frame.render_pass_list.empty())
frame_size = frame.render_pass_list.back()->output_rect.size();
// SurfaceCreated only applies for the first Surface activation. Thus,
// SurfaceFactory stops observing new activations after the first one.
manager_->SurfaceCreated(SurfaceInfo(
surface->surface_id(), frame.metadata.device_scale_factor, frame_size));
}
// Fire SurfaceCreated first so that a temporary reference is added before it
// is potentially transformed into a real reference by the client.
client_->ReferencedSurfacesChanged(surface->surface_id().local_surface_id(),
surface->active_referenced_surfaces());
if (!manager_->SurfaceModified(surface->surface_id())) {
TRACE_EVENT_INSTANT0("cc", "Damage not visible.", TRACE_EVENT_SCOPE_THREAD);
surface->RunDrawCallback();
}
}
void SurfaceFactory::OnSurfaceDependenciesChanged(
Surface* surface,
const SurfaceDependencies& added_dependencies,
const SurfaceDependencies& removed_dependencies) {}
void SurfaceFactory::OnSurfaceDiscarded(Surface* surface) {}
std::unique_ptr<Surface> SurfaceFactory::Create(
const LocalSurfaceId& local_surface_id) {
seen_first_frame_activation_ = false;
std::unique_ptr<Surface> surface =
manager_->CreateSurface(weak_factory_.GetWeakPtr(), local_surface_id);
surface->AddObserver(this);
return surface;
}
void SurfaceFactory::Destroy(std::unique_ptr<Surface> surface) {
surface->RemoveObserver(this);
manager_->DestroySurface(std::move(surface));
}
} // namespace cc