Add:graphics/qt_qpianter: Use Format_ARGB32_Premultiplied for all QImages

git-svn-id: https://navit.svn.sourceforge.net/svnroot/navit/trunk@3356 ffa7fe5e-494d-0410-b361-a75ebd5db220

diff --git a/navit/navit/graphics/qt_qpainter/graphics_qt_qpainter.cpp b/navit/navit/graphics/qt_qpainter/graphics_qt_qpainter.cpp
index e12d770..84d83e6 100644 (file)
--- a/navit/navit/graphics/qt_qpainter/graphics_qt_qpainter.cpp
+++ b/navit/navit/graphics/qt_qpainter/graphics_qt_qpainter.cpp
@@ -246,7 +246,7 @@ qt_qpainter_draw(struct graphics_priv *gr, const QRect *r, int paintev)
                        QImage img=overlay->widget->pixmap->convertToImage();
                        img.setAlphaBuffer(1);
 #else
-                       QImage img=overlay->widget->pixmap->toImage().convertToFormat(QImage::Format_ARGB32);
+                       QImage img=overlay->widget->pixmap->toImage().convertToFormat(QImage::Format_ARGB32_Premultiplied);
 #endif
                        data=img.bits();
                        for (i = 0 ; i < size ; i++) {
@@ -785,7 +785,7 @@ static void draw_text(struct graphics_priv *gr, struct graphics_gc_priv *fg, str
                                data=img.bits();
                                gr->freetype_methods.get_shadow(g,(unsigned char *)(img.jumpTable()),32,0,bgc,&transparent);
 #else
-                               QImage img(g->w+2, g->h+2, QImage::Format_ARGB32);
+                               QImage img(g->w+2, g->h+2, QImage::Format_ARGB32_Premultiplied);
                                data=img.bits();
                                gr->freetype_methods.get_shadow(g,(unsigned char *)data,32,img.bytesPerLine(),bgc,&transparent);
 #endif
@@ -811,7 +811,7 @@ static void draw_text(struct graphics_priv *gr, struct graphics_gc_priv *fg, str
                        data=img.bits();
                        gr->freetype_methods.get_glyph(g,(unsigned char *)(img.jumpTable()),32,0,fgc,bgc,&transparent);
 #else
-                       QImage img(g->w, g->h, QImage::Format_ARGB32);
+                       QImage img(g->w, g->h, QImage::Format_ARGB32_Premultiplied);
                        data=img.bits();
                        gr->freetype_methods.get_glyph(g,(unsigned char *)data,32,img.bytesPerLine(),fgc,bgc,&transparent);
 #endif