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
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
|
/**************************************************************************
*
* Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
* Copyright 2009-2010 Chia-I Wu <olvaffe@gmail.com>
* Copyright 2010-2011 LunarG, Inc.
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sub license, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
**************************************************************************/
/**
* Small/misc EGL functions
*/
#include <assert.h>
#include <string.h>
#include "eglcurrent.h"
#include "eglmisc.h"
#include "egldisplay.h"
#include "egldriver.h"
#include "eglstring.h"
/**
* Copy the extension into the string and update the string pointer.
*/
static EGLint
_eglAppendExtension(char **str, const char *ext)
{
char *s = *str;
size_t len = strlen(ext);
if (s) {
memcpy(s, ext, len);
s[len++] = ' ';
s[len] = '\0';
*str += len;
}
else {
len++;
}
return (EGLint) len;
}
/**
* Examine the individual extension enable/disable flags and recompute
* the driver's Extensions string.
*/
static void
_eglUpdateExtensionsString(_EGLDisplay *dpy)
{
#define _EGL_CHECK_EXTENSION(ext) \
do { \
if (dpy->Extensions.ext) { \
_eglAppendExtension(&exts, "EGL_" #ext); \
assert(exts <= dpy->ExtensionsString + _EGL_MAX_EXTENSIONS_LEN); \
} \
} while (0)
char *exts = dpy->ExtensionsString;
if (exts[0])
return;
_EGL_CHECK_EXTENSION(MESA_screen_surface);
_EGL_CHECK_EXTENSION(MESA_copy_context);
_EGL_CHECK_EXTENSION(MESA_drm_display);
_EGL_CHECK_EXTENSION(MESA_drm_image);
_EGL_CHECK_EXTENSION(WL_bind_wayland_display);
_EGL_CHECK_EXTENSION(KHR_image_base);
_EGL_CHECK_EXTENSION(KHR_image_pixmap);
if (dpy->Extensions.KHR_image_base && dpy->Extensions.KHR_image_pixmap)
_eglAppendExtension(&exts, "EGL_KHR_image");
_EGL_CHECK_EXTENSION(KHR_vg_parent_image);
_EGL_CHECK_EXTENSION(KHR_gl_texture_2D_image);
_EGL_CHECK_EXTENSION(KHR_gl_texture_cubemap_image);
_EGL_CHECK_EXTENSION(KHR_gl_texture_3D_image);
_EGL_CHECK_EXTENSION(KHR_gl_renderbuffer_image);
_EGL_CHECK_EXTENSION(KHR_reusable_sync);
_EGL_CHECK_EXTENSION(KHR_fence_sync);
_EGL_CHECK_EXTENSION(KHR_surfaceless_context);
_EGL_CHECK_EXTENSION(KHR_create_context);
_EGL_CHECK_EXTENSION(NOK_swap_region);
_EGL_CHECK_EXTENSION(NOK_texture_from_pixmap);
_EGL_CHECK_EXTENSION(ANDROID_image_native_buffer);
_EGL_CHECK_EXTENSION(EXT_create_context_robustness);
_EGL_CHECK_EXTENSION(EXT_buffer_age);
_EGL_CHECK_EXTENSION(NV_post_sub_buffer);
#undef _EGL_CHECK_EXTENSION
}
static void
_eglUpdateAPIsString(_EGLDisplay *dpy)
{
char *apis = dpy->ClientAPIsString;
if (apis[0] || !dpy->ClientAPIs)
return;
if (dpy->ClientAPIs & EGL_OPENGL_BIT)
strcat(apis, "OpenGL ");
if (dpy->ClientAPIs & EGL_OPENGL_ES_BIT)
strcat(apis, "OpenGL_ES ");
if (dpy->ClientAPIs & EGL_OPENGL_ES2_BIT)
strcat(apis, "OpenGL_ES2 ");
if (dpy->ClientAPIs & EGL_OPENVG_BIT)
strcat(apis, "OpenVG ");
assert(strlen(apis) < sizeof(dpy->ClientAPIsString));
}
const char *
_eglQueryString(_EGLDriver *drv, _EGLDisplay *dpy, EGLint name)
{
(void) drv;
switch (name) {
case EGL_VENDOR:
return _EGL_VENDOR_STRING;
case EGL_VERSION:
_eglsnprintf(dpy->VersionString, sizeof(dpy->VersionString),
"%d.%d (%s)", dpy->VersionMajor, dpy->VersionMinor,
dpy->Driver->Name);
return dpy->VersionString;
case EGL_EXTENSIONS:
_eglUpdateExtensionsString(dpy);
return dpy->ExtensionsString;
case EGL_CLIENT_APIS:
_eglUpdateAPIsString(dpy);
return dpy->ClientAPIsString;
default:
_eglError(EGL_BAD_PARAMETER, "eglQueryString");
return NULL;
}
}
|
