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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_DRM_BUFFER_H_
#define UI_OZONE_PLATFORM_DRM_GPU_DRM_BUFFER_H_
#include <stddef.h>
#include <stdint.h>
#include "base/macros.h"
#include "third_party/skia/include/core/SkRefCnt.h"
#include "ui/ozone/platform/drm/gpu/scanout_buffer.h"
class SkCanvas;
struct SkImageInfo;
class SkSurface;
namespace ui {
class DrmDevice;
// Wrapper for a DRM allocated buffer. Keeps track of the native properties of
// the buffer and wraps the pixel memory into a SkSurface which can be used to
// draw into using Skia.
class DrmBuffer : public ScanoutBuffer {
public:
DrmBuffer(const scoped_refptr<DrmDevice>& drm);
// Allocates the backing pixels and wraps them in |surface_|. |info| is used
// to describe the buffer characteristics (size, color format).
// |should_register_framebuffer| is used to distinguish the buffers that are
// used for modesetting.
bool Initialize(const SkImageInfo& info, bool should_register_framebuffer);
SkCanvas* GetCanvas() const;
// ScanoutBuffer:
uint32_t GetFramebufferId() const override;
uint32_t GetFramebufferPixelFormat() const override;
uint32_t GetHandle() const override;
gfx::Size GetSize() const override;
const DrmDevice* GetDrmDevice() const override;
bool RequiresGlFinish() const override;
protected:
~DrmBuffer() override;
scoped_refptr<DrmDevice> drm_;
// Length of a row of pixels.
uint32_t stride_ = 0;
// Buffer handle used by the DRM allocator.
uint32_t handle_ = 0;
// Base address for memory mapping.
void* mmap_base_ = 0;
// Size for memory mapping.
size_t mmap_size_ = 0;
// Buffer ID used by the DRM modesettings API. This is set when the buffer is
// registered with the CRTC.
uint32_t framebuffer_ = 0;
// Pixel format of |framebuffer_|
uint32_t fb_pixel_format_ = 0;
// Wrapper around the native pixel memory.
sk_sp<SkSurface> surface_;
DISALLOW_COPY_AND_ASSIGN(DrmBuffer);
};
} // namespace ui
#endif // UI_OZONE_PLATFORM_DRM_GPU_DRM_BUFFER_H_