From 9d69416a7ee041ca45998b2e46dac3e476fb41d2 Mon Sep 17 00:00:00 2001
From: Timothy Arceri <tarceri@itsqueeze.com>
Date: Thu, 6 Apr 2017 14:47:34 +1000
Subject: mesa: simplify and optimise vertex bindings tracking

We only need to update it if something changes. Also
_mesa_bind_vertex_buffer() will update the mask when binding to a
NULL or default buffer so no need to do that update here.

Reviewed-by: Juan A. Suarez Romero <jasuarez@igalia.com>
---
 src/mesa/main/varray.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

(limited to 'src/mesa/main/varray.c')

diff --git a/src/mesa/main/varray.c b/src/mesa/main/varray.c
index 13126957796..233dc0dc419 100644
--- a/src/mesa/main/varray.c
+++ b/src/mesa/main/varray.c
@@ -137,14 +137,12 @@ vertex_attrib_binding(struct gl_context *ctx,
 {
    struct gl_array_attributes *array = &vao->VertexAttrib[attribIndex];
 
-   if (!_mesa_is_bufferobj(vao->BufferBinding[bindingIndex].BufferObj))
-      vao->VertexAttribBufferMask &= ~VERT_BIT(attribIndex);
-   else
-      vao->VertexAttribBufferMask |= VERT_BIT(attribIndex);
-
    if (array->BufferBindingIndex != bindingIndex) {
       const GLbitfield64 array_bit = VERT_BIT(attribIndex);
 
+      if (_mesa_is_bufferobj(vao->BufferBinding[bindingIndex].BufferObj))
+         vao->VertexAttribBufferMask |= array_bit;
+
       FLUSH_VERTICES(ctx, _NEW_ARRAY);
 
       vao->BufferBinding[array->BufferBindingIndex]._BoundArrays &= ~array_bit;
-- 
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