Alexandre Julliard : winex11: Always ignore alpha channel with XRender gradients.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: e332ebb20020727ab69aeae3f8b54755a7027aff
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=e332ebb20020727ab69aeae3f8b54755a7027aff

Author: Alexandre Julliard <julliard at winehq.org>
Date:   Fri Dec  2 14:12:07 2011 +0100

winex11: Always ignore alpha channel with XRender gradients.

---

 dlls/winex11.drv/xrender.c |    8 ++------
 1 files changed, 2 insertions(+), 6 deletions(-)

diff --git a/dlls/winex11.drv/xrender.c b/dlls/winex11.drv/xrender.c
index f7fd11e..bccbe4d 100644
--- a/dlls/winex11.drv/xrender.c
+++ b/dlls/winex11.drv/xrender.c
@@ -2562,12 +2562,8 @@ static BOOL xrenderdrv_GradientFill( PHYSDEV dev, TRIVERTEX *vert_array, ULONG n
             colors[1].red   = v2->Red * 257 / 256;
             colors[1].green = v2->Green * 257 / 256;
             colors[1].blue  = v2->Blue * 257 / 256;
-            if (has_alpha( physdev->format ))
-            {
-                colors[0].alpha = v1->Alpha * 257 / 256;
-                colors[1].alpha = v2->Alpha * 257 / 256;
-            }
-            else colors[0].alpha = colors[1].alpha = 65535;
+            /* always ignore alpha since otherwise xrender will want to pre-multiply the colors */
+            colors[0].alpha = colors[1].alpha = 65535;
 
             pt[0].x = v1->x;
             pt[0].y = v1->y;