glinfo: query/print GL_SHADING_LANGUAGE_VERSION

And print extensions after vendor, version, renderer.

1 files changed, 12 insertions, 1 deletions

diff --git a/src/demos/glinfo.c b/src/demos/glinfo.c
index d4164ffc..7dd384f6 100644
--- a/src/demos/glinfo.c
+++ b/src/demos/glinfo.c
@@ -18,9 +18,20 @@ int main( int argc, char *argv[] )
    glutCreateWindow(argv[0]);
 
    printf("GL_VERSION: %s\n", (char *) glGetString(GL_VERSION));
-   printf("GL_EXTENSIONS: %s\n", (char *) glGetString(GL_EXTENSIONS));
    printf("GL_RENDERER: %s\n", (char *) glGetString(GL_RENDERER));
    printf("GL_VENDOR: %s\n", (char *) glGetString(GL_VENDOR));
+   printf("GL_EXTENSIONS: %s\n", (char *) glGetString(GL_EXTENSIONS));
+
+#ifdef GL_VERSION_2_0
+   {
+      const GLubyte *v = glGetString(GL_VERSION);
+      if (v[0] * 10 + v[2] >= 20) {
+         const GLubyte *slv = glGetString(GL_SHADING_LANGUAGE_VERSION);
+         printf("GL_SHADING_LANGUAGE_VERSION = %s\n", slv);
+      }
+   }
+#endif
+
    printf("GLU_VERSION: %s\n", (char *) gluGetString(GLU_VERSION));
    printf("GLU_EXTENSIONS: %s\n", (char *) gluGetString(GLU_EXTENSIONS));
    printf("GLUT_API_VERSION: %d\n", GLUT_API_VERSION);