[gegl-qt] NodeViewImplementation: Use premultiplied alpha

[Jon Nordby <jonnor src gnome org>]

commit bddb5d91da6b1f6d48a1d050508611b9943da5c9
Author: Jon Nordby <jononor gmail com>
Date:   Sat Sep 24 18:51:23 2011 +0200

    NodeViewImplementation: Use premultiplied alpha
    
    Should be faster.

 gegl-qt/internal/nodeviewimplementation.cpp |    9 ++-------
 1 files changed, 2 insertions(+), 7 deletions(-)
---
diff --git a/gegl-qt/internal/nodeviewimplementation.cpp b/gegl-qt/internal/nodeviewimplementation.cpp
index 5c23ddb..c87dfda 100644
--- a/gegl-qt/internal/nodeviewimplementation.cpp
+++ b/gegl-qt/internal/nodeviewimplementation.cpp
@@ -285,12 +285,7 @@ NodeViewImplementation::paint(QPainter *painter, const QRectF & viewRect)
     guchar *buffer = NULL;
     GeglRectangle roi;
 
-    Babl *format = babl_format_new(babl_model("R'G'B'A"), babl_type ("u8"),
-            babl_component ("B'"),
-            babl_component ("G'"),
-            babl_component ("R'"),
-            babl_component ("A"),
-            NULL);
+    Babl *format = babl_format("B'aG'aR'aA u8");
 
     if (!format) {
         qCritical() << "Unknown Babl format";
@@ -311,7 +306,7 @@ NodeViewImplementation::paint(QPainter *painter, const QRectF & viewRect)
                     GEGL_AUTO_ROWSTRIDE, GEGL_BLIT_CACHE);
 
     QImage image(buffer, roi.width, roi.height, roi.width*4,
-                 QImage::Format_ARGB32);
+                 QImage::QImage::Format_ARGB32_Premultiplied);
 
     painter->scale(options()->scale(), options()->scale());
     painter->drawImage(QPointF(), image);