st/mesa: conditionally enable GL_NV_vdpau_interop

Only enable it when we compile the state tracker as well.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>

configure.ac

@@ -1735,6 +1735,7 @@ AM_CONDITIONAL(HAVE_ST_XVMC, test "x$enable_xvmc" = xyes)
 if test "x$enable_vdpau" = xyes; then
     PKG_CHECK_MODULES([VDPAU], [vdpau >= $VDPAU_REQUIRED])
     gallium_st="$gallium_st vdpau"
+    DEFINES="$DEFINES -DHAVE_ST_VDPAU"
 fi
 AM_CONDITIONAL(HAVE_ST_VDPAU, test "x$enable_vdpau" = xyes)
 

src/mesa/state_tracker/st_extensions.c

@@ -1067,12 +1067,14 @@ void st_init_extensions(struct pipe_screen *screen,
       extensions->ARB_ES3_compatibility = GL_TRUE;
    }
 
+#ifdef HAVE_ST_VDPAU
    if (screen->get_video_param &&
        screen->get_video_param(screen, PIPE_VIDEO_PROFILE_UNKNOWN,
                                PIPE_VIDEO_ENTRYPOINT_BITSTREAM,
                                PIPE_VIDEO_CAP_SUPPORTS_INTERLACED)) {
       extensions->NV_vdpau_interop = GL_TRUE;
    }
+#endif
 
    if (screen->get_shader_param(screen, PIPE_SHADER_VERTEX,
                                 PIPE_SHADER_CAP_DOUBLES) &&

src/mesa/state_tracker/st_vdpau.c

@@ -49,6 +49,8 @@
 #include "st_format.h"
 #include "st_cb_flush.h"
 
+#ifdef HAVE_ST_VDPAU
+
 static void
 st_vdpau_map_surface(struct gl_context *ctx, GLenum target, GLenum access,
                      GLboolean output, struct gl_texture_object *texObj,
@@ -180,9 +182,13 @@ st_vdpau_unmap_surface(struct gl_context *ctx, GLenum target, GLenum access,
    st_flush(st, NULL, 0);
 }
 
+#endif
+
 void
 st_init_vdpau_functions(struct dd_function_table *functions)
 {
+#ifdef HAVE_ST_VDPAU
    functions->VDPAUMapSurface = st_vdpau_map_surface;
    functions->VDPAUUnmapSurface = st_vdpau_unmap_surface;
+#endif
 }