Reset temporary vertices ids.

src/mesa/pipe/draw/draw_context.c

@@ -243,6 +243,18 @@ void draw_alloc_tmps( struct draw_stage *stage, unsigned nr )
    }
 }
 
+/**
+ * Reset the verticies ids of this and subsequent stages.
+ */
+void draw_reset_tmps( struct draw_stage *stage )
+{
+   unsigned i;
+   
+   if (stage->tmp)
+      for (i = 0; i < stage->nr_tmps; i++)
+	 stage->tmp[i]->vertex_id = UNDEFINED_VERTEX_ID;
+}
+
 void draw_free_tmps( struct draw_stage *stage )
 {
    if (stage->tmp) {
@@ -251,9 +263,24 @@ void draw_free_tmps( struct draw_stage *stage )
    }
 }
 
+
 boolean draw_use_sse(struct draw_context *draw)
 {
    return (boolean) draw->use_sse;
 }
 
 
+void draw_reset_vertex_ids(struct draw_context *draw)
+{
+   struct draw_stage *stage = draw->pipeline.first;
+   
+   while (stage) {
+      if (stage->reset_tmps)
+	 stage->reset_tmps(stage);
+      else
+	 draw_reset_tmps(stage);
+      stage = stage->next;
+   }
+
+   draw_vertex_cache_reset_vertex_ids(draw);
+}

src/mesa/pipe/draw/draw_private.h

@@ -116,6 +116,13 @@ struct draw_stage
 
    void (*end)( struct draw_stage * );
 
+   /** 
+    * Reset temporary vertices ids in this stage 
+    * 
+    * draw_free_tmps will be called instead if null.
+    */
+   void (*reset_tmps)( struct draw_stage * );
+
    void (*reset_stipple_counter)( struct draw_stage * );
 };
 
@@ -254,8 +261,11 @@ extern struct draw_stage *draw_validate_stage( struct draw_context *context );
 
 
 extern void draw_free_tmps( struct draw_stage *stage );
+extern void draw_reset_tmps( struct draw_stage *stage );
 extern void draw_alloc_tmps( struct draw_stage *stage, unsigned nr );
 
+extern void draw_reset_vertex_ids( struct draw_context *draw );
+
 
 extern int draw_vertex_cache_check_space( struct draw_context *draw, 
 					  unsigned nr_verts );

src/mesa/pipe/i915simple/i915_prim_vbuf.c

@@ -290,9 +290,11 @@ static void vbuf_flush_elements( struct draw_stage *stage )
       break;
    case PIPE_PRIM_LINES:
       hwprim = PRIM3D_LINELIST;
+      assert(nr % 2 == 0);
       break;
    case PIPE_PRIM_TRIANGLES:
       hwprim = PRIM3D_TRILIST;
+      assert(nr % 3 == 0);
       break;
    default:
       assert(0);
@@ -365,7 +367,7 @@ static void vbuf_flush_vertices( struct draw_stage *stage )
        * issues uploading vertices if the hardware wants to flush when
        * we flush.
        */
-      draw_vertex_cache_reset_vertex_ids( vbuf->i915->draw );
+      draw_reset_vertex_ids( vbuf->i915->draw );
    }
    
    /* FIXME: handle failure */

src/mesa/pipe/softpipe/sp_prim_vbuf.c

@@ -243,7 +243,7 @@ static void vbuf_flush_elements( struct draw_stage *stage )
        * issues uploading vertices if the hardware wants to flush when
        * we flush.
        */
-      draw_vertex_cache_reset_vertex_ids( vbuf->draw_context );
+      draw_reset_vertex_ids( vbuf->draw_context );
    }
 
    stage->tri = vbuf_first_tri;