svga: check for and skip null vertex buffer pointers

[mesa.git] / src / mesa / drivers / dri / i965 / brw_gs.h

diff --git a/src/mesa/drivers/dri/i965/brw_gs.h b/src/mesa/drivers/dri/i965/brw_gs.h
index 7bf2248a5ede3c416b04af5c1d5d63fb278ecf74..f2597c8abab3c99746141bbbf470840051fbd1e1 100644 (file)
--- a/src/mesa/drivers/dri/i965/brw_gs.h
+++ b/src/mesa/drivers/dri/i965/brw_gs.h
@@ -63,6 +63,13 @@ struct brw_gs_prog_key {
     * entry.
     */
    unsigned char transform_feedback_bindings[BRW_MAX_SOL_BINDINGS];
+
+   /**
+    * Map from the index of a transform feedback binding table entry to the
+    * swizzles that should be used when streaming out data through that
+    * binding table entry.
+    */
+   unsigned char transform_feedback_swizzles[BRW_MAX_SOL_BINDINGS];
 };
 
 struct brw_gs_compile {
@@ -83,6 +90,12 @@ struct brw_gs_compile {
       struct brw_reg vertex[MAX_GS_VERTS];
       struct brw_reg header;
       struct brw_reg temp;
+
+      /**
+       * Register holding destination indices for streamed buffer writes.
+       * Only used for SOL programs.
+       */
+      struct brw_reg destination_indices;
    } reg;
 
    /* Number of registers used to store vertex data */