+#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(MESA_configless_context);
+
+ _EGL_CHECK_EXTENSION(WL_bind_wayland_display);
+ _EGL_CHECK_EXTENSION(WL_create_wayland_buffer_from_image);
+
+ _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);