svga: return 0 for PIPE_CAP_PREFER_BLIT_BASED_TEXTURE_TRANSFER

Using the map/unmap path for glTexImage is a little bit faster
than blitting.  Also, this fixes about 50 assorted piglit failures
that seem to be related to the blit version of glReadPixels.

Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: José Fonseca <jfonseca@vmware.com>

diff --git a/src/gallium/drivers/svga/svga_screen.c b/src/gallium/drivers/svga/svga_screen.c
index 8d395f03cfca8c70e7ceb719fac3490e2c55c50f..d0e242ab44776d2e8b79cf6c0640684199b40d6f 100644 (file)
--- a/src/gallium/drivers/svga/svga_screen.c
+++ b/src/gallium/drivers/svga/svga_screen.c
@@ -227,7 +227,7 @@ svga_get_param(struct pipe_screen *screen, enum pipe_cap param)
       return 120;
 
    case PIPE_CAP_PREFER_BLIT_BASED_TEXTURE_TRANSFER:
-      return 1;
+      return 0;
 
    /* Unsupported features */
    case PIPE_CAP_QUADS_FOLLOW_PROVOKING_VERTEX_CONVENTION: