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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_PUBLIC_NATIVE_PIXMAP_H_
#define UI_OZONE_PUBLIC_NATIVE_PIXMAP_H_
#include "base/bind.h"
#include "base/macros.h"
#include "base/memory/ref_counted.h"
#include "ui/gfx/native_pixmap_handle.h"
#include "ui/gfx/native_widget_types.h"
#include "ui/gfx/overlay_transform.h"
namespace gfx {
class Rect;
class RectF;
}
namespace ui {
// This represents a buffer that can be directly imported via GL for
// rendering, or exported via dma-buf fds.
class NativePixmap : public base::RefCountedThreadSafe<NativePixmap> {
public:
NativePixmap() {}
virtual void* /* EGLClientBuffer */ GetEGLClientBuffer() const = 0;
virtual bool AreDmaBufFdsValid() const = 0;
virtual size_t GetDmaBufFdCount() const = 0;
virtual int GetDmaBufFd(size_t plane) const = 0;
virtual int GetDmaBufPitch(size_t plane) const = 0;
virtual int GetDmaBufOffset(size_t plane) const = 0;
virtual uint64_t GetDmaBufModifier(size_t plane) const = 0;
virtual gfx::BufferFormat GetBufferFormat() const = 0;
virtual gfx::Size GetBufferSize() const = 0;
// Sets the overlay plane to switch to at the next page flip.
// |widget| specifies the screen to display this overlay plane on.
// |plane_z_order| specifies the stacking order of the plane relative to the
// main framebuffer located at index 0.
// |plane_transform| specifies how the buffer is to be transformed during
// composition.
// |display_bounds| specify where it is supposed to be on the screen.
// |crop_rect| specifies the region within the buffer to be placed
// inside |display_bounds|. This is specified in texture coordinates, in the
// range of [0,1].
virtual bool ScheduleOverlayPlane(gfx::AcceleratedWidget widget,
int plane_z_order,
gfx::OverlayTransform plane_transform,
const gfx::Rect& display_bounds,
const gfx::RectF& crop_rect) = 0;
// This represents a callback function pointing to processing unit like VPP to
// do post-processing operations like scaling and color space conversion on
// |source_pixmap| and save processed result to |target_pixmap|.
typedef base::Callback<bool(const scoped_refptr<NativePixmap>& source_pixmap,
scoped_refptr<NativePixmap> target_pixmap)>
ProcessingCallback;
// Set callback function for the pixmap used for post processing.
virtual void SetProcessingCallback(
const ProcessingCallback& processing_callback) = 0;
// Export the buffer for sharing across processes.
// Any file descriptors in the exported handle are owned by the caller.
virtual gfx::NativePixmapHandle ExportHandle() = 0;
protected:
virtual ~NativePixmap() {}
private:
friend class base::RefCountedThreadSafe<NativePixmap>;
DISALLOW_COPY_AND_ASSIGN(NativePixmap);
};
} // namespace ui
#endif // UI_OZONE_PUBLIC_NATIVE_PIXMAP_H_