From ba69d050221933759d376a9e66a9a71c83e192ac Mon Sep 17 00:00:00 2001
From: Jason Edmeades <us@the-edmeades.demon.co.uk>
Date: Tue, 30 Sep 2003 00:20:08 +0000
Subject: [PATCH] Make unlock of the backbuffer correctly restore the contents.

---
 dlls/d3d8/surface.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/dlls/d3d8/surface.c b/dlls/d3d8/surface.c
index 527f60940b6..14589287cf9 100644
--- a/dlls/d3d8/surface.c
+++ b/dlls/d3d8/surface.c
@@ -321,6 +321,8 @@ HRESULT WINAPI IDirect3DSurface8Impl_UnlockRect(LPDIRECT3DSURFACE8 iface) {
 	vcheckGLcall("glIntegerv");
 	glGetIntegerv(GL_CURRENT_RASTER_POSITION, &prev_rasterpos[0]);
 	vcheckGLcall("glIntegerv");
+        glPixelZoom(1.0, -1.0);
+        vcheckGLcall("glPixelZoom");
 
 	if (This == This->Device->backBuffer) {
 	  glDrawBuffer(GL_BACK);
@@ -361,6 +363,8 @@ HRESULT WINAPI IDirect3DSurface8Impl_UnlockRect(LPDIRECT3DSURFACE8 iface) {
 	  FIXME("Unsupported Format %u in locking func\n", This->myDesc.Format);
 	}
 
+        glPixelZoom(1.0,1.0);
+        vcheckGLcall("glPixelZoom");
 	glDrawBuffer(prev_draw);
 	vcheckGLcall("glDrawBuffer");
 	glRasterPos3iv(&prev_rasterpos[0]);