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
|
/*
* Copyright (C) 2024 Igalia S.L.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301 USA
*/
#include "config.h"
#include "GLFence.h"
#include "GLContext.h"
#include "GLFenceEGL.h"
#include "GLFenceGL.h"
#include <wtf/TZoneMallocInlines.h>
#if USE(LIBEPOXY)
#include <epoxy/gl.h>
#else
#include <GLES2/gl2.h>
#endif
namespace WebCore {
WTF_MAKE_TZONE_ALLOCATED_IMPL(GLFence);
const GLFence::Capabilities& GLFence::capabilities()
{
static Capabilities capabilities;
#if HAVE(GL_FENCE)
static std::once_flag onceFlag;
std::call_once(onceFlag, [] {
auto& display = PlatformDisplay::sharedDisplay();
const auto& extensions = display.eglExtensions();
if (display.eglCheckVersion(1, 5)) {
capabilities.eglSupported = true;
capabilities.eglServerWaitSupported = true;
} else {
capabilities.eglSupported = extensions.KHR_fence_sync;
capabilities.eglServerWaitSupported = extensions.KHR_wait_sync;
}
#if OS(UNIX)
capabilities.eglExportableSupported = extensions.ANDROID_native_fence_sync;
#endif
capabilities.glSupported = GLContext::versionFromString(reinterpret_cast<const char*>(glGetString(GL_VERSION))) >= 300;
});
#endif
return capabilities;
}
bool GLFence::isSupported()
{
const auto& fenceCapabilities = capabilities();
return fenceCapabilities.eglSupported || fenceCapabilities.glSupported;
}
std::unique_ptr<GLFence> GLFence::create()
{
#if HAVE(GL_FENCE)
if (!GLContextWrapper::currentContext())
return nullptr;
const auto& fenceCapabilities = capabilities();
if (fenceCapabilities.eglSupported && fenceCapabilities.eglServerWaitSupported)
return GLFenceEGL::create();
if (fenceCapabilities.glSupported)
return GLFenceGL::create();
if (fenceCapabilities.eglSupported)
return GLFenceEGL::create();
#endif
return nullptr;
}
#if OS(UNIX)
std::unique_ptr<GLFence> GLFence::createExportable()
{
#if HAVE(GL_FENCE)
if (!GLContextWrapper::currentContext())
return nullptr;
const auto& fenceCapabilities = capabilities();
if (fenceCapabilities.eglSupported && fenceCapabilities.eglExportableSupported)
return GLFenceEGL::createExportable();
#endif
return nullptr;
}
std::unique_ptr<GLFence> GLFence::importFD(UnixFileDescriptor&& fd)
{
#if HAVE(GL_FENCE)
if (!GLContextWrapper::currentContext())
return nullptr;
const auto& fenceCapabilities = capabilities();
if (fenceCapabilities.eglSupported && fenceCapabilities.eglExportableSupported)
return GLFenceEGL::importFD(WTFMove(fd));
#else
UNUSED_PARAM(fd);
#endif
return nullptr;
}
#endif
} // namespace WebCore
|
