1 /**************************************************************************
3 * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
4 * Copyright 2009-2010 Chia-I Wu <olvaffe@gmail.com>
5 * Copyright 2010-2011 LunarG, Inc.
8 * Permission is hereby granted, free of charge, to any person obtaining a
9 * copy of this software and associated documentation files (the
10 * "Software"), to deal in the Software without restriction, including
11 * without limitation the rights to use, copy, modify, merge, publish,
12 * distribute, sub license, and/or sell copies of the Software, and to
13 * permit persons to whom the Software is furnished to do so, subject to
14 * the following conditions:
16 * The above copyright notice and this permission notice (including the
17 * next paragraph) shall be included in all copies or substantial portions
20 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
21 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
22 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
23 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
24 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
25 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
26 * DEALINGS IN THE SOFTWARE.
28 **************************************************************************/
32 * Small/misc EGL functions
38 #include "eglcurrent.h"
40 #include "egldisplay.h"
41 #include "egldriver.h"
42 #include "eglstring.h"
46 * Copy the extension into the string and update the string pointer.
49 _eglAppendExtension(char **str
, const char *ext
)
52 size_t len
= strlen(ext
);
70 * Examine the individual extension enable/disable flags and recompute
71 * the driver's Extensions string.
74 _eglUpdateExtensionsString(_EGLDisplay
*dpy
)
76 #define _EGL_CHECK_EXTENSION(ext) \
78 if (dpy->Extensions.ext) { \
79 _eglAppendExtension(&exts, "EGL_" #ext); \
80 assert(exts <= dpy->ExtensionsString + _EGL_MAX_EXTENSIONS_LEN); \
84 char *exts
= dpy
->ExtensionsString
;
89 _EGL_CHECK_EXTENSION(MESA_screen_surface
);
90 _EGL_CHECK_EXTENSION(MESA_copy_context
);
91 _EGL_CHECK_EXTENSION(MESA_drm_display
);
92 _EGL_CHECK_EXTENSION(MESA_drm_image
);
94 _EGL_CHECK_EXTENSION(WL_bind_wayland_display
);
96 _EGL_CHECK_EXTENSION(KHR_image_base
);
97 _EGL_CHECK_EXTENSION(KHR_image_pixmap
);
98 if (dpy
->Extensions
.KHR_image_base
&& dpy
->Extensions
.KHR_image_pixmap
)
99 _eglAppendExtension(&exts
, "EGL_KHR_image");
101 _EGL_CHECK_EXTENSION(KHR_vg_parent_image
);
102 _EGL_CHECK_EXTENSION(KHR_gl_texture_2D_image
);
103 _EGL_CHECK_EXTENSION(KHR_gl_texture_cubemap_image
);
104 _EGL_CHECK_EXTENSION(KHR_gl_texture_3D_image
);
105 _EGL_CHECK_EXTENSION(KHR_gl_renderbuffer_image
);
107 _EGL_CHECK_EXTENSION(KHR_reusable_sync
);
108 _EGL_CHECK_EXTENSION(KHR_fence_sync
);
110 _EGL_CHECK_EXTENSION(KHR_surfaceless_context
);
111 _EGL_CHECK_EXTENSION(KHR_create_context
);
113 _EGL_CHECK_EXTENSION(NOK_swap_region
);
114 _EGL_CHECK_EXTENSION(NOK_texture_from_pixmap
);
116 _EGL_CHECK_EXTENSION(ANDROID_image_native_buffer
);
118 _EGL_CHECK_EXTENSION(EXT_create_context_robustness
);
119 _EGL_CHECK_EXTENSION(EXT_buffer_age
);
120 _EGL_CHECK_EXTENSION(EXT_swap_buffers_with_damage
);
121 _EGL_CHECK_EXTENSION(EXT_image_dma_buf_import
);
123 _EGL_CHECK_EXTENSION(NV_post_sub_buffer
);
124 #undef _EGL_CHECK_EXTENSION
129 _eglUpdateAPIsString(_EGLDisplay
*dpy
)
131 char *apis
= dpy
->ClientAPIsString
;
133 if (apis
[0] || !dpy
->ClientAPIs
)
136 if (dpy
->ClientAPIs
& EGL_OPENGL_BIT
)
137 strcat(apis
, "OpenGL ");
139 if (dpy
->ClientAPIs
& EGL_OPENGL_ES_BIT
)
140 strcat(apis
, "OpenGL_ES ");
142 if (dpy
->ClientAPIs
& EGL_OPENGL_ES2_BIT
)
143 strcat(apis
, "OpenGL_ES2 ");
145 if (dpy
->ClientAPIs
& EGL_OPENGL_ES3_BIT_KHR
)
146 strcat(apis
, "OpenGL_ES3 ");
148 if (dpy
->ClientAPIs
& EGL_OPENVG_BIT
)
149 strcat(apis
, "OpenVG ");
151 assert(strlen(apis
) < sizeof(dpy
->ClientAPIsString
));
156 _eglQueryString(_EGLDriver
*drv
, _EGLDisplay
*dpy
, EGLint name
)
162 return _EGL_VENDOR_STRING
;
164 _eglsnprintf(dpy
->VersionString
, sizeof(dpy
->VersionString
),
165 "%d.%d (%s)", dpy
->VersionMajor
, dpy
->VersionMinor
,
167 return dpy
->VersionString
;
169 _eglUpdateExtensionsString(dpy
);
170 return dpy
->ExtensionsString
;
171 case EGL_CLIENT_APIS
:
172 _eglUpdateAPIsString(dpy
);
173 return dpy
->ClientAPIsString
;
175 _eglError(EGL_BAD_PARAMETER
, "eglQueryString");