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
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
|
// Copyright 2025 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "ui/gfx/gpu_memory_buffer_handle.h"
#include "base/logging.h"
#include "base/notimplemented.h"
#include "build/build_config.h"
#include "ui/gfx/generic_shared_memory_id.h"
#if BUILDFLAG(IS_WIN)
#include <windows.h>
#include "base/win/scoped_handle.h"
#endif // BUILDFLAG(IS_WIN)
namespace gfx {
#if BUILDFLAG(IS_WIN)
namespace {
base::win::ScopedHandle CloneDXGIHandle(HANDLE handle) {
HANDLE target_handle = nullptr;
if (!::DuplicateHandle(GetCurrentProcess(), handle, GetCurrentProcess(),
&target_handle, 0, FALSE, DUPLICATE_SAME_ACCESS)) {
DVPLOG(1) << "Error duplicating GMB DXGI handle";
}
return base::win::ScopedHandle(target_handle);
}
} // namespace
DXGIHandle DXGIHandle::CreateFakeForTest() {
// DXGIHandle requires a valid HANDLE, so just create a placeholder event.
base::win::ScopedHandle fake_handle(
::CreateEvent(nullptr, FALSE, FALSE, nullptr));
return DXGIHandle(std::move(fake_handle));
}
DXGIHandle::DXGIHandle() = default;
DXGIHandle::~DXGIHandle() = default;
DXGIHandle::DXGIHandle(base::win::ScopedHandle buffer_handle)
: buffer_handle_(std::move(buffer_handle)) {
DCHECK(buffer_handle_.is_valid());
}
DXGIHandle::DXGIHandle(base::win::ScopedHandle buffer_handle,
const DXGIHandleToken& token,
base::UnsafeSharedMemoryRegion region)
: buffer_handle_(std::move(buffer_handle)),
token_(token),
region_(std::move(region)) {
DCHECK(buffer_handle_.is_valid());
}
DXGIHandle::DXGIHandle(DXGIHandle&&) = default;
DXGIHandle& DXGIHandle::operator=(DXGIHandle&&) = default;
bool DXGIHandle::IsValid() const {
return buffer_handle_.is_valid();
}
DXGIHandle DXGIHandle::Clone() const {
DXGIHandle handle;
if (buffer_handle_.is_valid()) {
handle.buffer_handle_ = CloneDXGIHandle(buffer_handle_.Get());
}
handle.token_ = token_;
handle.region_ = region_.Duplicate();
return handle;
}
DXGIHandle DXGIHandle::CloneWithRegion(
base::UnsafeSharedMemoryRegion region) const {
DXGIHandle handle = Clone();
DCHECK(!handle.region_.IsValid());
handle.region_ = std::move(region);
return handle;
}
base::win::ScopedHandle DXGIHandle::TakeBufferHandle() {
DCHECK(buffer_handle_.is_valid());
return std::move(buffer_handle_);
}
#endif // BUILDFLAG(IS_WIN)
GpuMemoryBufferHandle::GpuMemoryBufferHandle() = default;
GpuMemoryBufferHandle::GpuMemoryBufferHandle(
base::UnsafeSharedMemoryRegion region)
: type(GpuMemoryBufferType::SHARED_MEMORY_BUFFER),
region_(std::move(region)) {
CHECK(region_.IsValid(), base::NotFatalUntil::M141);
}
#if BUILDFLAG(IS_WIN)
GpuMemoryBufferHandle::GpuMemoryBufferHandle(DXGIHandle handle)
: type(GpuMemoryBufferType::DXGI_SHARED_HANDLE),
dxgi_handle_(std::move(handle)) {
CHECK(dxgi_handle_.IsValid());
}
#endif // BUILDFLAG(IS_WIN)
#if BUILDFLAG(IS_OZONE)
GpuMemoryBufferHandle::GpuMemoryBufferHandle(
NativePixmapHandle native_pixmap_handle)
: type(GpuMemoryBufferType::NATIVE_PIXMAP),
native_pixmap_handle_(std::move(native_pixmap_handle)) {}
#endif // BUILDFLAG(IS_OZONE)
#if BUILDFLAG(IS_ANDROID)
GpuMemoryBufferHandle::GpuMemoryBufferHandle(
base::android::ScopedHardwareBufferHandle handle)
: type(GpuMemoryBufferType::ANDROID_HARDWARE_BUFFER),
android_hardware_buffer(std::move(handle)) {}
#endif // BUILDFLAG(IS_ANDROID)
// TODO(crbug.com/40584691): Reset |type| and possibly the handles on the
// moved-from object.
GpuMemoryBufferHandle::GpuMemoryBufferHandle(GpuMemoryBufferHandle&& other) =
default;
GpuMemoryBufferHandle& GpuMemoryBufferHandle::operator=(
GpuMemoryBufferHandle&& other) = default;
GpuMemoryBufferHandle::~GpuMemoryBufferHandle() = default;
GpuMemoryBufferHandle GpuMemoryBufferHandle::Clone() const {
GpuMemoryBufferHandle handle;
handle.type = type;
handle.id = id;
handle.offset = offset;
handle.stride = stride;
#if BUILDFLAG(IS_OZONE)
handle.native_pixmap_handle_ = CloneHandleForIPC(native_pixmap_handle_);
#elif BUILDFLAG(IS_APPLE)
handle.io_surface = io_surface;
#if BUILDFLAG(IS_IOS)
handle.io_surface_mach_port = io_surface_mach_port;
handle.io_surface_shared_memory_region =
io_surface_shared_memory_region.Duplicate();
handle.io_surface_plane_strides = io_surface_plane_strides;
handle.io_surface_plane_offsets = io_surface_plane_offsets;
#endif
#elif BUILDFLAG(IS_WIN)
handle.dxgi_handle_ = dxgi_handle_.Clone();
#elif BUILDFLAG(IS_ANDROID)
NOTIMPLEMENTED();
#endif
handle.region_ = region_.Duplicate();
return handle;
}
} // namespace gfx
|
