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// Copyright 2013 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/renderer_host/software_frame_manager.h"
#include "base/bind.h"
#include "base/callback_helpers.h"
#include "base/debug/alias.h"
#include "base/numerics/safe_math.h"
#include "cc/resources/shared_bitmap.h"
#include "content/browser/renderer_host/dip_util.h"
#include "content/common/host_shared_bitmap_manager.h"
#include "content/public/browser/user_metrics.h"
namespace {
void ReleaseMailbox(scoped_refptr<content::SoftwareFrame> frame,
uint32 sync_point,
bool lost_resource) {}
} // namespace
namespace content {
////////////////////////////////////////////////////////////////////////////////
// SoftwareFrame
class CONTENT_EXPORT SoftwareFrame : public base::RefCounted<SoftwareFrame> {
private:
friend class base::RefCounted<SoftwareFrame>;
friend class SoftwareFrameManager;
SoftwareFrame(base::WeakPtr<SoftwareFrameManagerClient> frame_manager_client,
uint32 output_surface_id,
unsigned frame_id,
float frame_device_scale_factor,
gfx::Size frame_size_pixels,
scoped_ptr<cc::SharedBitmap> shared_bitmap);
~SoftwareFrame();
base::WeakPtr<SoftwareFrameManagerClient> frame_manager_client_;
const uint32 output_surface_id_;
const unsigned frame_id_;
float frame_device_scale_factor_;
const gfx::Size frame_size_pixels_;
scoped_ptr<cc::SharedBitmap> shared_bitmap_;
DISALLOW_COPY_AND_ASSIGN(SoftwareFrame);
};
SoftwareFrame::SoftwareFrame(
base::WeakPtr<SoftwareFrameManagerClient> frame_manager_client,
uint32 output_surface_id,
unsigned frame_id,
float frame_device_scale_factor,
gfx::Size frame_size_pixels,
scoped_ptr<cc::SharedBitmap> shared_bitmap)
: frame_manager_client_(frame_manager_client),
output_surface_id_(output_surface_id),
frame_id_(frame_id),
frame_device_scale_factor_(frame_device_scale_factor),
frame_size_pixels_(frame_size_pixels),
shared_bitmap_(shared_bitmap.Pass()) {}
SoftwareFrame::~SoftwareFrame() {
if (frame_manager_client_) {
frame_manager_client_->SoftwareFrameWasFreed(
output_surface_id_, frame_id_);
}
}
////////////////////////////////////////////////////////////////////////////////
// SoftwareFrameManager
SoftwareFrameManager::SoftwareFrameManager(
base::WeakPtr<SoftwareFrameManagerClient> client)
: client_(client) {}
SoftwareFrameManager::~SoftwareFrameManager() {
DiscardCurrentFrame();
}
bool SoftwareFrameManager::SwapToNewFrame(
uint32 output_surface_id,
const cc::SoftwareFrameData* frame_data,
float frame_device_scale_factor,
base::ProcessHandle process_handle) {
scoped_ptr<cc::SharedBitmap> shared_bitmap =
HostSharedBitmapManager::current()->GetSharedBitmapFromId(
frame_data->size, frame_data->bitmap_id);
if (!shared_bitmap) {
RecordAction(
base::UserMetricsAction("BadMessageTerminate_SharedMemoryManager1"));
return false;
}
scoped_refptr<SoftwareFrame> next_frame(
new SoftwareFrame(client_,
output_surface_id,
frame_data->id,
frame_device_scale_factor,
frame_data->size,
shared_bitmap.Pass()));
current_frame_.swap(next_frame);
return true;
}
bool SoftwareFrameManager::HasCurrentFrame() const {
return current_frame_.get() ? true : false;
}
void SoftwareFrameManager::DiscardCurrentFrame() {
if (!HasCurrentFrame())
return;
current_frame_ = NULL;
RendererFrameManager::GetInstance()->RemoveFrame(this);
}
void SoftwareFrameManager::SwapToNewFrameComplete(bool visible) {
DCHECK(HasCurrentFrame());
RendererFrameManager::GetInstance()->AddFrame(this, visible);
}
void SoftwareFrameManager::SetVisibility(bool visible) {
if (HasCurrentFrame()) {
if (visible) {
RendererFrameManager::GetInstance()->LockFrame(this);
} else {
RendererFrameManager::GetInstance()->UnlockFrame(this);
}
}
}
uint32 SoftwareFrameManager::GetCurrentFrameOutputSurfaceId() const {
DCHECK(HasCurrentFrame());
return current_frame_->output_surface_id_;
}
void SoftwareFrameManager::GetCurrentFrameMailbox(
cc::TextureMailbox* mailbox,
scoped_ptr<cc::SingleReleaseCallback>* callback) {
DCHECK(HasCurrentFrame());
*mailbox = cc::TextureMailbox(current_frame_->shared_bitmap_->memory(),
current_frame_->frame_size_pixels_);
*callback = cc::SingleReleaseCallback::Create(
base::Bind(ReleaseMailbox, current_frame_));
}
void* SoftwareFrameManager::GetCurrentFramePixels() const {
DCHECK(HasCurrentFrame());
DCHECK(current_frame_->shared_bitmap_);
return current_frame_->shared_bitmap_->pixels();
}
float SoftwareFrameManager::GetCurrentFrameDeviceScaleFactor() const {
DCHECK(HasCurrentFrame());
return current_frame_->frame_device_scale_factor_;
}
gfx::Size SoftwareFrameManager::GetCurrentFrameSizeInPixels() const {
DCHECK(HasCurrentFrame());
return current_frame_->frame_size_pixels_;
}
gfx::Size SoftwareFrameManager::GetCurrentFrameSizeInDIP() const {
DCHECK(HasCurrentFrame());
return ConvertSizeToDIP(current_frame_->frame_device_scale_factor_,
current_frame_->frame_size_pixels_);
}
void SoftwareFrameManager::EvictCurrentFrame() {
DCHECK(HasCurrentFrame());
DiscardCurrentFrame();
if (client_)
client_->ReleaseReferencesToSoftwareFrame();
}
} // namespace content
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