[cairo] Broken mask transformations with pixman

[Adrian Johnson]

Jeff Muizelaar wrote:
> On Wed, Sep 19, 2007 at 04:46:15PM -0400, Jeff Muizelaar wrote:
>> I've attached a patch to pixman and a test case for cairo.
>> Running the test under valgrind should give errors about inapproiate reads even
>> if the input is not incorrect.
> 
> This test case also triggers the following assertion:
> cairo-pdf-surface.c:1242: _cairo_pdf_surface_emit_image: Assertion
> `image->format == CAIRO_FORMAT_RGB24 || image->format ==
> CAIRO_FORMAT_ARGB32' failed.
> 
> -Jeff

I've pushed out PDF support for CAIRO_FORMAT_A8 images.