Previously this function was attempting to return values in surface
space, (but even then it was doing it wrong). However, all callers
actually expect values in backend space. Fixing this cleans up bug
7268 quite nicely.
To hit the Firefox 3 schedule in early 2007 we'll need to have a 1.4 release
out much sooner. Let's shoot for October 2006 which gives 6 months between
1.2 and 1.4.
Also, sunmoon1997 has identified a couple more important issues to be fixed
before 1.2 releases.
Switch from ARGB32 to RGB24 for intermediate image surface since that's all that the current users of cairo_paginated_surface support anyway.
Switch cairo_ps_surface_t over to use the new cairo_paginated_surface_t. This drastically simplifies the implementation, but temporarily puts the PostScript output back into the land of one-image-per-page. To be fixed soon though with improvements to cairo_paginated_surface_t. Everything still passes the test suite which is good. The test suite currently does no testing of multi-page output, which is quite bad.
Add new functions needed by users of cairo_paginated_surface_t.
Always snapshot a paginated surface to an image surface, rather than a surface similar to the target. We do this since paginated target surfaces are allowed to not be complete surfaces, (such as not implementing acquire_source_surface).
Switch the implementation of cairo_pdf_surface_t to use cairo_paginated_surface_t. For now this means that all PDF output is fallback images, but this can change incrementally as we go forward.
Add _cairo_array_init_snapshot and checks for is_snapshot throughout.
Add a new surface->backend->snapshot function.
Implement _cairo_meta_surface_snapshot and _cairo_meta_surface_acquire/release_source_image. Change _cairo_meta_surface_create to require the width and height in pixels to be used when replaying for purposed of _cairo_meta_surface_aquire_source_image.
Track change in prototype of _cairo_meta_surface_create. Implement _cairo_ps_surface_snapshot by deferring down into _cairo_meta_surface_snapshot.
Add missing glue to hook up PS backend with new meta-surface support for the 5 basic drawing operations. Currently, this forces image fallbacks for all operations.
Switch from gs device of pngalpha to png16m which for some reason gives the correct result for nil-surface now, while pngalpha does not.
Key off of N_OPERATORS as the loop control for easier trimming down of this test case when debugging.
Rename stroke_style parameter to style in backend->stroke parameter list.
Remove PS-specific reference images for many tests which are now using more fallback paths than before.
Use fallbacks for any operation using a pattern other than a solid pattern, since it's the only type that will actually emit anything right now.
Add comments indicating these functions are not yet implemented.
Replace the surface->fallback_region with a page-level surface->fallback Boolean instead, since that's all it was being used as anyway.
Do nothing in the ps_output->fallback case.
Do nothing in the ! ps_output->fallback case.
Reviewed by: keithp
