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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_CONSOLE_BUFFER_H_
#define UI_OZONE_PLATFORM_DRM_GPU_DRM_CONSOLE_BUFFER_H_
#include <stddef.h>
#include <stdint.h>
#include "base/macros.h"
#include "base/memory/ref_counted.h"
#include "skia/ext/refptr.h"
#include "third_party/skia/include/core/SkSurface.h"
class SkCanvas;
namespace ui {
class DrmDevice;
// Wrapper for the console buffer. This is the buffer that is allocated by
// default by the system and is used when no application is controlling the
// CRTC. 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 DrmConsoleBuffer {
public:
DrmConsoleBuffer(const scoped_refptr<DrmDevice>& drm, uint32_t framebuffer);
~DrmConsoleBuffer();
SkCanvas* canvas() { return surface_->getCanvas(); }
skia::RefPtr<SkImage> image() {
return skia::AdoptRef(surface_->newImageSnapshot());
}
// Memory map the backing pixels and wrap them in |surface_|.
bool Initialize();
protected:
scoped_refptr<DrmDevice> drm_;
// Wrapper around the native pixel memory.
skia::RefPtr<SkSurface> surface_;
// Length of a row of pixels.
uint32_t stride_ = 0;
// Buffer handle used by the DRM allocator.
uint32_t handle_ = 0;
// Buffer ID used by the DRM modesettings API.
uint32_t framebuffer_ = 0;
// Memory map base address.
void* mmap_base_ = nullptr;
// Memory map size.
size_t mmap_size_ = 0;
DISALLOW_COPY_AND_ASSIGN(DrmConsoleBuffer);
};
} // namespace ui
#endif // UI_OZONE_PLATFORM_DRM_GPU_DRM_CONSOLE_BUFFER_H_
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