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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.
#ifndef UI_OZONE_PLATFORM_DRM_GPU_SCANOUT_BUFFER_H_
#define UI_OZONE_PLATFORM_DRM_GPU_SCANOUT_BUFFER_H_
#include <stdint.h>
#include "base/memory/ref_counted.h"
#include "ui/gfx/buffer_types.h"
#include "ui/gfx/geometry/size.h"
namespace ui {
class DrmDevice;
// Abstraction for a DRM buffer that can be scanned-out of.
class ScanoutBuffer : public base::RefCountedThreadSafe<ScanoutBuffer> {
public:
// ID allocated by the KMS API when the buffer is registered (via the handle).
virtual uint32_t GetFramebufferId() const = 0;
// Returns FourCC format representing the way pixel data has been encoded in
// memory for the registered framebuffer. This can be used to check if frame
// buffer is compatible with a given hardware plane.
virtual uint32_t GetFramebufferPixelFormat() const = 0;
// Handle for the buffer. This is received when allocating the buffer.
virtual uint32_t GetHandle() const = 0;
// Size of the buffer.
virtual gfx::Size GetSize() const = 0;
// Device on which the buffer was created.
virtual const DrmDevice* GetDrmDevice() const = 0;
virtual bool RequiresGlFinish() const = 0;
protected:
virtual ~ScanoutBuffer() {}
friend class base::RefCountedThreadSafe<ScanoutBuffer>;
};
class ScanoutBufferGenerator {
public:
virtual ~ScanoutBufferGenerator() {}
virtual scoped_refptr<ScanoutBuffer> Create(
const scoped_refptr<DrmDevice>& drm,
gfx::BufferFormat format,
const gfx::Size& size) = 0;
};
} // namespace ui
#endif // UI_OZONE_PLATFORM_DRM_GPU_SCANOUT_BUFFER_H_