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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.
#ifndef CC_RASTER_ZERO_COPY_RASTER_BUFFER_PROVIDER_H_
#define CC_RASTER_ZERO_COPY_RASTER_BUFFER_PROVIDER_H_
#include <stdint.h>
#include "base/macros.h"
#include "base/memory/weak_ptr.h"
#include "base/values.h"
#include "cc/raster/raster_buffer_provider.h"
namespace base {
namespace trace_event {
class ConvertableToTraceFormat;
}
}
namespace cc {
class ResourceProvider;
class CC_EXPORT ZeroCopyRasterBufferProvider : public RasterBufferProvider {
public:
~ZeroCopyRasterBufferProvider() override;
static std::unique_ptr<RasterBufferProvider> Create(
ResourceProvider* resource_provider,
ResourceFormat preferred_tile_format);
// Overridden from RasterBufferProvider:
std::unique_ptr<RasterBuffer> AcquireBufferForRaster(
const Resource* resource,
uint64_t resource_content_id,
uint64_t previous_content_id) override;
void ReleaseBufferForRaster(std::unique_ptr<RasterBuffer> buffer) override;
void OrderingBarrier() override;
ResourceFormat GetResourceFormat(bool must_support_alpha) const override;
bool GetResourceRequiresSwizzle(bool must_support_alpha) const override;
void Shutdown() override;
protected:
ZeroCopyRasterBufferProvider(ResourceProvider* resource_provider,
ResourceFormat preferred_tile_format);
private:
std::unique_ptr<base::trace_event::ConvertableToTraceFormat> StateAsValue()
const;
ResourceProvider* resource_provider_;
ResourceFormat preferred_tile_format_;
DISALLOW_COPY_AND_ASSIGN(ZeroCopyRasterBufferProvider);
};
} // namespace cc
#endif // CC_RASTER_ZERO_COPY_RASTER_BUFFER_PROVIDER_H_