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Fix gdk_cairo_region_create_from_surface on big endian

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gdk_cairo_region_create_from_surface doesn't work correctly on PPC.
This is most prominently seen with the GTK window resize grip, the
shape of which is mirrored every eight pixels horizontally.

At the same time, use an A1 surface for the resize grip shape to
eliminates an A8->A1 surface conversion.
This commit is contained in:
Michel Dänzer 2011-11-19 12:23:27 -05:00 committed by Matthias Clasen
parent 6bb495f6bd
commit ab34c79896
2 changed files with 5 additions and 1 deletions
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4
gdk/gdkcairo.c
View File

@ -427,7 +427,11 @@ gdk_cairo_region_create_from_surface (cairo_surface_t *surface)
gint x0 = x;
while (x < extents.width)
{
#if G_BYTE_ORDER == G_LITTLE_ENDIAN
if (((data[x / 8] >> (x%8)) & 1) == 0)
#else
if (((data[x / 8] >> (7-(x%8))) & 1) == 0)
#endif
/* This pixel is "transparent"*/
break;
x++;

2
gtk/gtkwindow.c
View File

@ -5298,7 +5298,7 @@ set_grip_shape (GtkWindow *window)
width = gdk_window_get_width (priv->grip_window);
height = gdk_window_get_height (priv->grip_window);
surface = cairo_image_surface_create (CAIRO_FORMAT_A8, width, height);
surface = cairo_image_surface_create (CAIRO_FORMAT_A1, width, height);
cr = cairo_create (surface);
cairo_set_source_rgba (cr, 0.0, 0.0, 0.0, 0.0);