radeonsi: early exit in si_clear if there's nothing to do

Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>

diff --git a/src/gallium/drivers/radeonsi/si_blit.c b/src/gallium/drivers/radeonsi/si_blit.c
index c3591a7..c892623 100644 (file)
--- a/src/gallium/drivers/radeonsi/si_blit.c
+++ b/src/gallium/drivers/radeonsi/si_blit.c
@@ -342,6 +342,8 @@ static void si_clear(struct pipe_context *ctx, unsigned buffers,
        if (buffers & PIPE_CLEAR_COLOR) {
                evergreen_do_fast_color_clear(&sctx->b, fb, &sctx->framebuffer.atom,
                                              &buffers, color);
+               if (!buffers)
+                       return; /* all buffers have been fast cleared */
        }
 
        if (buffers & PIPE_CLEAR_COLOR) {