Bug 691061 - Don't use EXTEND_PAD on printing surfaces. r=jmuizelaar

gfx/thebes/gfxDrawable.cpp

@@ -77,6 +77,21 @@ PreparePatternForUntiledDrawing(gfxPattern* aPattern,
     // the surface type.
     switch (currentTarget->GetType()) {
 
+        // The printing surfaces don't natively support or need
+        // EXTEND_PAD for padding the edges. Using EXTEND_PAD this way
+        // is suboptimal as it will result in the printing surface
+        // creating a new image for each fill operation. The pattern
+        // will be painted to the image to pad out the pattern, then
+        // the new image will be used as the source. This increases
+        // printing time and memory use, and prevents the use of mime
+        // data from cairo_surface_set_mime_data(). Bug 691061.
+        case gfxASurface::SurfaceTypePDF:
+        case gfxASurface::SurfaceTypePS:
+        case gfxASurface::SurfaceTypeWin32Printing:
+            aPattern->SetExtend(gfxPattern::EXTEND_NONE);
+            aPattern->SetFilter(aDefaultFilter);
+            break;
+
 #ifdef MOZ_X11
         case gfxASurface::SurfaceTypeXlib:
         {