Module: Mesa
Branch: master
Commit: 4e5416b0e2e0aedbed48acabe31a68fe1b37b61a
URL:    
http://cgit.freedesktop.org/mesa/mesa/commit/?id=4e5416b0e2e0aedbed48acabe31a68fe1b37b61a

Author: Stéphane Marchesin <[email protected]>
Date:   Fri May 10 18:29:52 2013 -0700

st/xlib: Fix upside down coordinates for CopySubBuffer

The coordinates need to be inverted between glX and gallium.

NOTE: This is a candidate for stable release branches.

Reviewed-by: Brian Paul <[email protected]>

---

 src/gallium/state_trackers/glx/xlib/xm_api.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/src/gallium/state_trackers/glx/xlib/xm_api.c 
b/src/gallium/state_trackers/glx/xlib/xm_api.c
index 66d29a5..c39968d 100644
--- a/src/gallium/state_trackers/glx/xlib/xm_api.c
+++ b/src/gallium/state_trackers/glx/xlib/xm_api.c
@@ -1255,7 +1255,7 @@ void XMesaCopySubBuffer( XMesaBuffer b, int x, int y, int 
width, int height )
 {
    xmesa_copy_st_framebuffer(b->stfb,
          ST_ATTACHMENT_BACK_LEFT, ST_ATTACHMENT_FRONT_LEFT,
-         x, y, width, height);
+         x, b->height - y - height, width, height);
 }
 
 

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