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_gles1);
111 _EGL_CHECK_EXTENSION(KHR_surfaceless_gles2);
112 _EGL_CHECK_EXTENSION(KHR_surfaceless_opengl);
114 _EGL_CHECK_EXTENSION(NOK_swap_region);
115 _EGL_CHECK_EXTENSION(NOK_texture_from_pixmap);
117 _EGL_CHECK_EXTENSION(ANDROID_image_native_buffer);
119 _EGL_CHECK_EXTENSION(NV_post_sub_buffer);
120 #undef _EGL_CHECK_EXTENSION
125 _eglUpdateAPIsString(_EGLDisplay *dpy)
127 char *apis = dpy->ClientAPIsString;
129 if (apis[0] || !dpy->ClientAPIs)
132 if (dpy->ClientAPIs & EGL_OPENGL_BIT)
133 strcat(apis, "OpenGL ");
135 if (dpy->ClientAPIs & EGL_OPENGL_ES_BIT)
136 strcat(apis, "OpenGL_ES ");
138 if (dpy->ClientAPIs & EGL_OPENGL_ES2_BIT)
139 strcat(apis, "OpenGL_ES2 ");
141 if (dpy->ClientAPIs & EGL_OPENVG_BIT)
142 strcat(apis, "OpenVG ");
144 assert(strlen(apis) < sizeof(dpy->ClientAPIsString));
149 _eglQueryString(_EGLDriver *drv, _EGLDisplay *dpy, EGLint name)
155 return _EGL_VENDOR_STRING;
157 _eglsnprintf(dpy->VersionString, sizeof(dpy->VersionString),
158 "%d.%d (%s)", dpy->VersionMajor, dpy->VersionMinor,
160 return dpy->VersionString;
162 _eglUpdateExtensionsString(dpy);
163 return dpy->ExtensionsString;
164 case EGL_CLIENT_APIS:
165 _eglUpdateAPIsString(dpy);
166 return dpy->ClientAPIsString;
168 _eglError(EGL_BAD_PARAMETER, "eglQueryString");