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// 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/raster/bitmap_tile_task_worker_pool.h"
#include <stddef.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/playback/display_list_raster_source.h"
#include "cc/raster/raster_buffer.h"
#include "cc/resources/platform_color.h"
#include "cc/resources/resource.h"
namespace cc {
namespace {
class RasterBufferImpl : public RasterBuffer {
public:
RasterBufferImpl(ResourceProvider* resource_provider,
const Resource* resource,
uint64_t resource_content_id,
uint64_t previous_content_id)
: lock_(resource_provider, resource->id()),
resource_(resource),
resource_has_previous_content_(
resource_content_id && resource_content_id == previous_content_id) {
}
// 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::Rect playback_rect = raster_full_rect;
if (resource_has_previous_content_) {
playback_rect.Intersect(raster_dirty_rect);
}
DCHECK(!playback_rect.IsEmpty())
<< "Why are we rastering a tile that's not dirty?";
size_t stride = 0u;
TileTaskWorkerPool::PlaybackToMemory(
lock_.sk_bitmap().getPixels(), resource_->format(), resource_->size(),
stride, raster_source, raster_full_rect, playback_rect, scale,
include_images);
}
private:
ResourceProvider::ScopedWriteLockSoftware lock_;
const Resource* resource_;
bool resource_has_previous_content_;
DISALLOW_COPY_AND_ASSIGN(RasterBufferImpl);
};
} // namespace
// static
scoped_ptr<TileTaskWorkerPool> BitmapTileTaskWorkerPool::Create(
base::SequencedTaskRunner* task_runner,
TaskGraphRunner* task_graph_runner,
ResourceProvider* resource_provider) {
return make_scoped_ptr<TileTaskWorkerPool>(new BitmapTileTaskWorkerPool(
task_runner, task_graph_runner, resource_provider));
}
BitmapTileTaskWorkerPool::BitmapTileTaskWorkerPool(
base::SequencedTaskRunner* task_runner,
TaskGraphRunner* task_graph_runner,
ResourceProvider* resource_provider)
: task_runner_(task_runner),
task_graph_runner_(task_graph_runner),
namespace_token_(task_graph_runner->GetNamespaceToken()),
resource_provider_(resource_provider) {}
BitmapTileTaskWorkerPool::~BitmapTileTaskWorkerPool() {
}
TileTaskRunner* BitmapTileTaskWorkerPool::AsTileTaskRunner() {
return this;
}
void BitmapTileTaskWorkerPool::Shutdown() {
TRACE_EVENT0("cc", "BitmapTileTaskWorkerPool::Shutdown");
TaskGraph empty;
task_graph_runner_->ScheduleTasks(namespace_token_, &empty);
task_graph_runner_->WaitForTasksToFinishRunning(namespace_token_);
}
void BitmapTileTaskWorkerPool::ScheduleTasks(TaskGraph* graph) {
TRACE_EVENT0("cc", "BitmapTileTaskWorkerPool::ScheduleTasks");
ScheduleTasksOnOriginThread(this, graph);
task_graph_runner_->ScheduleTasks(namespace_token_, graph);
}
void BitmapTileTaskWorkerPool::CheckForCompletedTasks() {
TRACE_EVENT0("cc", "BitmapTileTaskWorkerPool::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 BitmapTileTaskWorkerPool::GetResourceFormat(
bool must_support_alpha) const {
return resource_provider_->best_texture_format();
}
bool BitmapTileTaskWorkerPool::GetResourceRequiresSwizzle(
bool must_support_alpha) const {
return ResourceFormatRequiresSwizzle(GetResourceFormat(must_support_alpha));
}
scoped_ptr<RasterBuffer> BitmapTileTaskWorkerPool::AcquireBufferForRaster(
const Resource* resource,
uint64_t resource_content_id,
uint64_t previous_content_id) {
return scoped_ptr<RasterBuffer>(new RasterBufferImpl(
resource_provider_, resource, resource_content_id, previous_content_id));
}
void BitmapTileTaskWorkerPool::ReleaseBufferForRaster(
scoped_ptr<RasterBuffer> buffer) {
// Nothing to do here. RasterBufferImpl destructor cleans up after itself.
}
} // namespace cc
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