From 6854e21423248b07f31de3e0e3cb38d552a35662 Mon Sep 17 00:00:00 2001
From: David Rose <david@ddrose.com>
Date: Tue, 4 Oct 2011 21:39:45 +0000
Subject: [PATCH] overlooked mesadisplay with _textures pipelining

---
 panda/src/mesadisplay/osMesaGraphicsBuffer.cxx | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/panda/src/mesadisplay/osMesaGraphicsBuffer.cxx b/panda/src/mesadisplay/osMesaGraphicsBuffer.cxx
index 2bf9107279..fc292af3c6 100644
--- a/panda/src/mesadisplay/osMesaGraphicsBuffer.cxx
+++ b/panda/src/mesadisplay/osMesaGraphicsBuffer.cxx
@@ -71,9 +71,14 @@ begin_frame(FrameMode mode, Thread *current_thread) {
   mesagsg->reset_if_new();
 
   if (mode == FM_render) {
-    for (int i=0; i<count_textures(); i++) {
-      if (get_rtm_mode(i) == RTM_bind_or_copy) {
-        _textures[i]._rtm_mode = RTM_copy_texture;
+    CDLockedReader cdata(_cycler);
+    for (size_t i = 0; i != cdata->_textures.size(); ++i) {
+      const RenderTexture &rt = cdata->_textures[i];
+      RenderTextureMode rtm_mode = rt._rtm_mode;
+      if (rtm_mode == RTM_bind_or_copy) {
+        CDWriter cdataw(_cycler, cdata, false);
+        nassertr(cdata->_textures.size() == cdataw->_textures.size(), false);
+        cdataw->_textures[i]._rtm_mode = RTM_copy_texture;
       }
     }
     clear_cube_map_selection();