svga: start advertising PIPE_CAP_QUADS_FOLLOW_PROVOKING_VERTEX_CONVENTION

Since our driver support arb_provoking_vertex, we can start
advertising PIPE_CAP_QUADS_FOLLOW_PROVOKING_VERTEX_CONVENTION
Fixes ./clipflat & ./arb-provoking-vertex-render piglit tests

Tested piglit, glretrace on Hw 11 and Hw 13

Reviewed-by: Charmaine Lee <charmainel@vmware.com>
Reviewed-by: Brian Paul <brianp@vmware.com>

diff --git a/src/gallium/drivers/svga/svga_screen.c b/src/gallium/drivers/svga/svga_screen.c
index 7392a18ec1264b678885e077ad3406afef4256b9..16e350c4c7c0bbe955b9fddfdea3a9753faceccc 100644 (file)
--- a/src/gallium/drivers/svga/svga_screen.c
+++ b/src/gallium/drivers/svga/svga_screen.c
@@ -340,8 +340,10 @@ svga_get_param(struct pipe_screen *screen, enum pipe_cap param)
    case PIPE_CAP_NATIVE_FENCE_FD:
       return sws->have_fence_fd;
 
-   /* Unsupported features */
    case PIPE_CAP_QUADS_FOLLOW_PROVOKING_VERTEX_CONVENTION:
+      return 1;
+
+   /* Unsupported features */
    case PIPE_CAP_TEXTURE_MIRROR_CLAMP:
    case PIPE_CAP_SHADER_STENCIL_EXPORT:
    case PIPE_CAP_SEAMLESS_CUBE_MAP_PER_TEXTURE: