progs/egl: Check EGL_MESA_screen_surface is supported in demo2.

Signed-off-by: Chia-I Wu <olvaffe@gmail.com>

diff --git a/progs/egl/demo2.c b/progs/egl/demo2.c
index 5817771aec8959618c0dbf50207a1a434a7f36ec..3994656721fdbdc8c92b8ed143844f621bd1977d 100644 (file)
--- a/progs/egl/demo2.c
+++ b/progs/egl/demo2.c
@@ -7,6 +7,7 @@
 #include <assert.h>
 #include <stdio.h>
 #include <stdlib.h>
+#include <string.h>
 #include <unistd.h>
 
 #include <EGL/egl.h>
@@ -129,6 +130,11 @@ main(int argc, char *argv[])
 
    printf("EGL version = %d.%d\n", maj, min);
    printf("EGL_VENDOR = %s\n", eglQueryString(d, EGL_VENDOR));
+   if (!strstr(eglQueryString(d, EGL_EXTENSIONS),
+               "EGL_MESA_screen_surface")) {
+      printf("EGL_MESA_screen_surface is not supported\n");
+      exit(1);
+   }
 
    eglGetConfigs(d, configs, 10, &numConfigs);
    printf("Got %d EGL configs:\n", numConfigs);