1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
|
// Copyright 2014 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef UI_GFX_NATIVE_PIXMAP_H_
#define UI_GFX_NATIVE_PIXMAP_H_
#include "base/memory/ref_counted.h"
#include "ui/gfx/buffer_types.h"
#include "ui/gfx/geometry/size.h"
#include "ui/gfx/native_pixmap_handle.h"
#include "ui/gfx/native_widget_types.h"
namespace gfx {
struct OverlayPlaneData;
class GpuFence;
// 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() {}
NativePixmap(const NativePixmap&) = delete;
NativePixmap& operator=(const NativePixmap&) = delete;
virtual bool AreDmaBufFdsValid() const = 0;
virtual int GetDmaBufFd(size_t plane) const = 0;
virtual uint32_t GetDmaBufPitch(size_t plane) const = 0;
virtual size_t GetDmaBufOffset(size_t plane) const = 0;
virtual size_t GetDmaBufPlaneSize(size_t plane) const = 0;
// Return the number of non-interleaved "color" planes.
virtual size_t GetNumberOfPlanes() const = 0;
virtual bool SupportsZeroCopyWebGPUImport() const = 0;
// The following methods return format, modifier and size of the buffer,
// respectively.
virtual gfx::BufferFormat GetBufferFormat() const = 0;
virtual uint64_t GetBufferFormatModifier() const = 0;
virtual gfx::Size GetBufferSize() const = 0;
// Return an id that is guaranteed to be unique and equal for all instances
// of this NativePixmap backed by the same buffer, for the duration of its
// lifetime. If such id cannot be generated, 0 (an invalid id) is returned.
//
// TODO(posciak): crbug.com/771863, remove this once a different mechanism
// for protected shared memory buffers is implemented.
virtual uint32_t GetUniqueId() const = 0;
// Sets the overlay plane to switch to at the next page flip.
// |widget| specifies the screen to display this overlay plane on.
// |acquire_fences| specifies gpu fences to wait on before the pixmap is ready
// to be displayed. These fence are fired when the gpu has finished writing to
// the pixmap.
// |release_fences| specifies gpu fences that are signalled when the pixmap
// has been displayed and is ready for reuse.
// |overlay_plane_data| specifies overlay data such as opacity, z_order, size,
// etc.
virtual bool ScheduleOverlayPlane(
gfx::AcceleratedWidget widget,
const gfx::OverlayPlaneData& overlay_plane_data,
std::vector<gfx::GpuFence> acquire_fences,
std::vector<gfx::GpuFence> release_fences) = 0;
// Export the buffer for sharing across processes.
// Any file descriptors in the exported handle are owned by the caller.
virtual gfx::NativePixmapHandle ExportHandle() const = 0;
protected:
virtual ~NativePixmap() {}
private:
friend class base::RefCountedThreadSafe<NativePixmap>;
};
} // namespace gfx
#endif // UI_GFX_NATIVE_PIXMAP_H_
|
