1 files changed, 30 insertions, 0 deletions
diff --git a/src/mesa/vbo/vbo_exec_api.c b/src/mesa/vbo/vbo_exec_api.c
index 88cce984f8d..600398c5891 100644
--- a/src/mesa/vbo/vbo_exec_api.c
+++ b/src/mesa/vbo/vbo_exec_api.c
@@ -719,6 +719,34 @@ static void GLAPIENTRY vbo_exec_Begin( GLenum mode )
 
 
 /**
+ * Try to merge / concatenate the two most recent VBO primitives.
+ */
+static void
+try_vbo_merge(struct vbo_exec_context *exec)
+{
+   struct _mesa_prim *cur =  &exec->vtx.prim[exec->vtx.prim_count - 1];
+
+   assert(exec->vtx.prim_count >= 1);
+
+   vbo_try_prim_conversion(cur);
+
+   if (exec->vtx.prim_count >= 2) {
+      struct _mesa_prim *prev = &exec->vtx.prim[exec->vtx.prim_count - 2];
+      assert(prev == cur - 1);
+
+      if (vbo_can_merge_prims(prev, cur)) {
+         assert(cur->begin);
+         assert(cur->end);
+         assert(prev->begin);
+         assert(prev->end);
+         vbo_merge_prims(prev, cur);
+         exec->vtx.prim_count--;  /* drop the last primitive */
+      }
+   }
+}
+
+
+/**
  * Called via glEnd.
  */
 static void GLAPIENTRY vbo_exec_End( void )
@@ -744,6 +772,8 @@ static void GLAPIENTRY vbo_exec_End( void )
 
       exec->vtx.prim[i].end = 1;
       exec->vtx.prim[i].count = idx - exec->vtx.prim[i].start;
+
+      try_vbo_merge(exec);
    }
 
    ctx->Driver.CurrentExecPrimitive = PRIM_OUTSIDE_BEGIN_END;