From a18de3948f78ae19518253e01ca6a8624e2304da Mon Sep 17 00:00:00 2001
From: Vadim Girlin <vadimgirlin@gmail.com>
Date: Sun, 17 Jul 2011 07:42:14 +0400
Subject: [PATCH] st/mesa: clip src size to strb size in st_copy_texsubimage

---
 src/mesa/state_tracker/st_cb_texture.c |    8 ++++++++
 1 files changed, 8 insertions(+), 0 deletions(-)

diff --git a/src/mesa/state_tracker/st_cb_texture.c b/src/mesa/state_tracker/st_cb_texture.c
index 6907cfc..63cd142 100644
--- a/src/mesa/state_tracker/st_cb_texture.c
+++ b/src/mesa/state_tracker/st_cb_texture.c
@@ -1490,6 +1490,14 @@ st_copy_texsubimage(struct gl_context *ctx,
       destY = 0;
    }
 
+   if (srcX + width > strb->Base.Width) {
+      width = strb->Base.Width - srcX;
+   }
+
+   if (srcY + height > strb->Base.Height) {
+      height = strb->Base.Height - srcY;
+   }
+
    if (width < 0 || height < 0)
       return;
 
-- 
1.7.6