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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 "cc/raster/zero_copy_tile_task_worker_pool.h"
#include <stdint.h>
#include <algorithm>
#include "base/macros.h"
#include "base/strings/stringprintf.h"
#include "base/trace_event/trace_event.h"
#include "base/trace_event/trace_event_argument.h"
#include "cc/debug/traced_value.h"
#include "cc/raster/raster_buffer.h"
#include "cc/resources/platform_color.h"
#include "cc/resources/resource.h"
#include "ui/gfx/buffer_format_util.h"
#include "ui/gfx/gpu_memory_buffer.h"
namespace cc {
namespace {
class RasterBufferImpl : public RasterBuffer {
public:
RasterBufferImpl(ResourceProvider* resource_provider,
const Resource* resource)
: lock_(resource_provider, resource->id()), resource_(resource) {}
// Overridden from RasterBuffer:
void Playback(const DisplayListRasterSource* raster_source,
const gfx::Rect& raster_full_rect,
const gfx::Rect& raster_dirty_rect,
uint64_t new_content_id,
float scale,
bool include_images) override {
gfx::GpuMemoryBuffer* buffer = lock_.GetGpuMemoryBuffer();
if (!buffer)
return;
DCHECK_EQ(1u, gfx::NumberOfPlanesForBufferFormat(buffer->GetFormat()));
bool rv = buffer->Map();
DCHECK(rv);
DCHECK(buffer->memory(0));
// TileTaskWorkerPool::PlaybackToMemory only supports unsigned strides.
DCHECK_GE(buffer->stride(0), 0);
// TODO(danakj): Implement partial raster with raster_dirty_rect.
TileTaskWorkerPool::PlaybackToMemory(
buffer->memory(0), resource_->format(), resource_->size(),
buffer->stride(0), raster_source, raster_full_rect, raster_full_rect,
scale, include_images);
buffer->Unmap();
}
private:
ResourceProvider::ScopedWriteLockGpuMemoryBuffer lock_;
const Resource* resource_;
DISALLOW_COPY_AND_ASSIGN(RasterBufferImpl);
};
} // namespace
// static
scoped_ptr<TileTaskWorkerPool> ZeroCopyTileTaskWorkerPool::Create(
base::SequencedTaskRunner* task_runner,
TaskGraphRunner* task_graph_runner,
ResourceProvider* resource_provider,
ResourceFormat preferred_tile_format) {
return make_scoped_ptr<TileTaskWorkerPool>(
new ZeroCopyTileTaskWorkerPool(task_runner, task_graph_runner,
resource_provider, preferred_tile_format));
}
ZeroCopyTileTaskWorkerPool::ZeroCopyTileTaskWorkerPool(
base::SequencedTaskRunner* task_runner,
TaskGraphRunner* task_graph_runner,
ResourceProvider* resource_provider,
ResourceFormat preferred_tile_format)
: task_runner_(task_runner),
task_graph_runner_(task_graph_runner),
namespace_token_(task_graph_runner->GetNamespaceToken()),
resource_provider_(resource_provider),
preferred_tile_format_(preferred_tile_format) {}
ZeroCopyTileTaskWorkerPool::~ZeroCopyTileTaskWorkerPool() {
}
TileTaskRunner* ZeroCopyTileTaskWorkerPool::AsTileTaskRunner() {
return this;
}
void ZeroCopyTileTaskWorkerPool::Shutdown() {
TRACE_EVENT0("cc", "ZeroCopyTileTaskWorkerPool::Shutdown");
TaskGraph empty;
task_graph_runner_->ScheduleTasks(namespace_token_, &empty);
task_graph_runner_->WaitForTasksToFinishRunning(namespace_token_);
}
void ZeroCopyTileTaskWorkerPool::ScheduleTasks(TaskGraph* graph) {
TRACE_EVENT0("cc", "ZeroCopyTileTaskWorkerPool::ScheduleTasks");
ScheduleTasksOnOriginThread(this, graph);
task_graph_runner_->ScheduleTasks(namespace_token_, graph);
}
void ZeroCopyTileTaskWorkerPool::CheckForCompletedTasks() {
TRACE_EVENT0("cc", "ZeroCopyTileTaskWorkerPool::CheckForCompletedTasks");
task_graph_runner_->CollectCompletedTasks(namespace_token_,
&completed_tasks_);
for (Task::Vector::const_iterator it = completed_tasks_.begin();
it != completed_tasks_.end(); ++it) {
TileTask* task = static_cast<TileTask*>(it->get());
task->WillComplete();
task->CompleteOnOriginThread(this);
task->DidComplete();
}
completed_tasks_.clear();
}
ResourceFormat ZeroCopyTileTaskWorkerPool::GetResourceFormat(
bool must_support_alpha) const {
if (resource_provider_->IsResourceFormatSupported(preferred_tile_format_) &&
(DoesResourceFormatSupportAlpha(preferred_tile_format_) ||
!must_support_alpha)) {
return preferred_tile_format_;
}
return resource_provider_->best_texture_format();
}
bool ZeroCopyTileTaskWorkerPool::GetResourceRequiresSwizzle(
bool must_support_alpha) const {
return ResourceFormatRequiresSwizzle(GetResourceFormat(must_support_alpha));
}
scoped_ptr<RasterBuffer> ZeroCopyTileTaskWorkerPool::AcquireBufferForRaster(
const Resource* resource,
uint64_t resource_content_id,
uint64_t previous_content_id) {
return make_scoped_ptr<RasterBuffer>(
new RasterBufferImpl(resource_provider_, resource));
}
void ZeroCopyTileTaskWorkerPool::ReleaseBufferForRaster(
scoped_ptr<RasterBuffer> buffer) {
// Nothing to do here. RasterBufferImpl destructor cleans up after itself.
}
} // namespace cc
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