[Libreoffice-commits] .: vcl/unx

[Ivan Timofeev]

 vcl/unx/gtk3/gdi/gtk3salnativewidgets-gtk.cxx |    6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

New commits:
commit 92e00f2e536ce0458961d329a3c676acc86249e6
Author: Ivan Timofeev <timofeev.i.s at gmail.com>
Date:   Thu Aug 2 16:06:33 2012 +0400

    cairo uses pre-multiplied alpha
    
    Change-Id: I6cf04b10bfdd6c7b16761b2aa2f31c1392c49546

diff --git a/vcl/unx/gtk3/gdi/gtk3salnativewidgets-gtk.cxx b/vcl/unx/gtk3/gdi/gtk3salnativewidgets-gtk.cxx
index 5e0972f..4298493 100644
--- a/vcl/unx/gtk3/gdi/gtk3salnativewidgets-gtk.cxx
+++ b/vcl/unx/gtk3/gdi/gtk3salnativewidgets-gtk.cxx
@@ -972,9 +972,9 @@ void GtkSalGraphics::renderAreaToPix( cairo_t *cr,
         for (int x = 0; x < awidth && y < aheight; ++x)
         {
             double alpha = ((float)cairo_data[x*4 + 3])/255.0;
-            src[x*3 + 0] = src[x*3 + 0] * (1.0 - alpha) + cairo_data[x*4+0] * alpha;
-            src[x*3 + 1] = src[x*3 + 1] * (1.0 - alpha) + cairo_data[x*4+1] * alpha;
-            src[x*3 + 2] = src[x*3 + 2] * (1.0 - alpha) + cairo_data[x*4+2] * alpha;
+            src[x*3 + 0] = src[x*3 + 0] * (1.0 - alpha) + cairo_data[x*4+0];
+            src[x*3 + 1] = src[x*3 + 1] * (1.0 - alpha) + cairo_data[x*4+1];
+            src[x*3 + 2] = src[x*3 + 2] * (1.0 - alpha) + cairo_data[x*4+2];
         }
         src += nStride;
         cairo_data += cairo_stride;