i965: Start adding the VS visitor and codegen.

[mesa.git] / src / mesa / drivers / dri / i965 / brw_vs.c

diff --git a/src/mesa/drivers/dri/i965/brw_vs.c b/src/mesa/drivers/dri/i965/brw_vs.c
index a9ad5311fe3555a68cf5d42536cde70581bc667e..bd0677db15168b72434eea78e5179707a9d47377 100644 (file)
--- a/src/mesa/drivers/dri/i965/brw_vs.c
+++ b/src/mesa/drivers/dri/i965/brw_vs.c
@@ -30,6 +30,7 @@
   */
            
 
+#include "main/compiler.h"
 #include "brw_context.h"
 #include "brw_vs.h"
 #include "brw_util.h"
@@ -50,6 +51,7 @@ static void do_vs_prog( struct brw_context *brw,
    void *mem_ctx;
    int aux_size;
    int i;
+   static int new_vs = -1;
 
    memset(&c, 0, sizeof(c));
    memcpy(&c.key, key, sizeof(*key));
@@ -85,7 +87,15 @@ static void do_vs_prog( struct brw_context *brw,
 
    /* Emit GEN4 code.
     */
-   brw_vs_emit(&c);
+   if (new_vs == -1)
+      new_vs = getenv("INTEL_NEW_VS") != NULL;
+
+   if (new_vs) {
+      if (!brw_vs_emit(&c))
+        brw_old_vs_emit(&c);
+   } else {
+      brw_old_vs_emit(&c);
+   }
 
    /* get the program
     */