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[Marcus Comstedt <marcus@xxxxxxxx>]

** Attachment added: "Example program"
   https://bugs.launchpad.net/bugs/916196/+attachment/2673105/+files/shape.c

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https://bugs.launchpad.net/bugs/916196

Title:
  gdk_cairo_region_create_from_surface() broken on big endian

Status in “gtk+3.0” package in Ubuntu:
  New

Bug description:
  When using gdk_cairo_region_create_from_surface() on a big endian
  system, the points in the resulting region get reversed in horizontal
  groups of 8.  I've attached an example program that clearly shows the
  problem, and I'll attach screenshots from running it on  amd64 (little
  endian, works) and ppc (big endian, does not work).

  The output from the program when running on ppc is

  R 0: 0
  R 1: 0
  R 2: 0
  R 3: 0
  R 4: 0
  R 5: 0
  R 6: 0
  R 7: 8
  R 8: 8
  R 9: 8

  but the expected output is

  R 0: 1
  R 1: 2
  R 2: 3
  R 3: 4
  R 4: 5
  R 5: 6
  R 6: 7
  R 7: 8
  R 8: 9
  R 9: 10

  Since the text output is wrong, my conclusion is that the bug is in
  gdk_cairo_region_create_from_surface(), and not in
  gtk_widget_shape_combine_region().

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