vrend: chain conditions for using gl-based blitter

Once we know the GL shader-based blitter is needed, there's no need
test remaining conditions.

Signed-off-by: Ryan Neph <ryanneph@google.com>
Reviewed-by: Gert Wollny <gert.wollny@collabora.com>

src/vrend_renderer.c

@@ -8884,11 +8884,12 @@ static void vrend_renderer_blit_int(struct vrend_context *ctx,
       src_y2 = src_res->base.height0 - info->src.box.y;
    }
 
+   if (use_gl) {;}
    /* GLES generally doesn't support blitting to a multi-sample FB, and also not
     * from a multi-sample FB where the regions are not exatly the same or the
     * source and target format are different. For
     * downsampling DS blits to zero samples we solve this by doing two blits */
-   if (vrend_state.use_gles &&
+   else if (vrend_state.use_gles &&
             ((dst_res->base.nr_samples > 0) ||
              ((info->mask & PIPE_MASK_RGBA) &&
               (src_res->base.nr_samples > 0) &&
@@ -8903,12 +8904,10 @@ static void vrend_renderer_blit_int(struct vrend_context *ctx,
                   src_y1, src_y2, info->dst.box.x, info->dst.box.x + info->dst.box.width, dst_y1, dst_y2);
       use_gl = true;
    }
-
    /* for 3D mipmapped blits - hand roll time */
-   if (info->src.box.depth != info->dst.box.depth)
+   else if (info->src.box.depth != info->dst.box.depth)
       use_gl = true;
-
-   if (vrend_blit_needs_swizzle(info->dst.format, info->src.format))
+   else if (vrend_blit_needs_swizzle(info->dst.format, info->src.format))
       use_gl = true;
 
    if (has_feature(feat_texture_view))