svga: Ensure pending drawing commands other surface operations are emitted before DMAs.

This behavior was last when moving the transfers to the contexts.

This fixes several piglit failures, which were reading the color renderbuffer
before the draw operations were emitted.

1 files changed, 25 insertions, 0 deletions

diff --git a/src/gallium/drivers/svga/svga_context.c b/src/gallium/drivers/svga/svga_context.c
index 9bcf6571bd..9b737a187e 100644
--- a/src/gallium/drivers/svga/svga_context.c
+++ b/src/gallium/drivers/svga/svga_context.c
@@ -34,6 +34,7 @@
 
 #include "svga_context.h"
 #include "svga_screen.h"
+#include "svga_surface.h"
 #include "svga_resource_texture.h"
 #include "svga_resource_buffer.h"
 #include "svga_resource.h"
@@ -247,6 +248,30 @@ void svga_hwtnl_flush_retry( struct svga_context *svga )
    assert(ret == 0);
 }
 
+
+/* Emit all operations pending on host surfaces.
+ */ 
+void svga_surfaces_flush(struct svga_context *svga)
+{
+   unsigned i;
+
+   /* Emit buffered drawing commands.
+    */
+   svga_hwtnl_flush_retry( svga );
+
+   /* Emit back-copy from render target view to texture.
+    */
+   for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) {
+      if (svga->curr.framebuffer.cbufs[i])
+         svga_propagate_surface(svga, svga->curr.framebuffer.cbufs[i]);
+   }
+
+   if (svga->curr.framebuffer.zsbuf)
+      svga_propagate_surface(svga, svga->curr.framebuffer.zsbuf);
+
+}
+
+
 struct svga_winsys_context *
 svga_winsys_context( struct pipe_context *pipe )
 {