as it's not portable and lack of it could seriously break the truetype
subsetting code. Now, instead of using int32_t and int64_t, we use
multiple int16_t items, to avoid any alignments. Fortunately, we are
not using any of the fields involved, so no code changes necessary.
The flags added here are as follows:
-Werror-implicit-function-declaration Wstrict-aliasing=2
-Wwrite-strings Winit-self Wpacked Wmissing-format-attribute
-Wdeclaration-after-statement
This approach to fixing the bug is valid since there is code in pixman
for rendering to BGR images, (which is why cairo 1.0 worked with BGR X
servers for example). But, since we don't want to advertise additional
image formats we implement this through a new cairo_internal_format_t.
This is rather fragile since we don't want to leak any internal formats
nor do we ever want an internal format to be used somewhere a real
format is expected, (and trigger a CAIRO_FORMAT_VALID assertion failure).
More comments than code are added here to help compensate for the
fragility and to give some guidance in fixing this mess in a better way
in the future.
In addition to helping us preserve a sharp line between which symbols are
part of the public API and which are private parts of the implementation,
this can also help mozilla avoid clashes between its modified, internal
copy of cairo and the system version of cairo. See the mozilla bug here:
https://bugzilla.mozilla.org/show_bug.cgi?id=341874
Add a load_truetype_table function to cairo_scaled_font_backend_t and
use it to load the truetype sfnt tables. Implement this with freetype
for the freetype font backend and use GetFontData for win32. Atsui
remains unimplemented, and still falls back to type3 fonts.
We have switched back and forth quite a few times. This time I'm switching
because with pngalpha we get gray antialiased text and graphics while with
png16m all we get is no antialiasing. This is definitely a bug in the png16m
driver, but I won't wait until it gets fixed upstream.
Previously Carl Worth switched to pngalpha and reverted it immediately in
commit c4fc7b06b5. I've now fixed image-diff to
work with the output of pngalpha, so we can switch. It requires lots of
reference image updates, but still doesn't help with reducing the number of
PS-specific reference images we need.
Previously it was using the equation 128+diff/3, which results in
lots of gray and de-emphasized difference. Now it's using
MIN(255,diff*4) which more emphasizes the real difference.
that includes all tests depending on CAIRO_ANTIALIAS_NONE and
CAIRO_ANTIALIAS_SUBPIXEL.
This removes separate pdf_ignored_tests and svg_ignored_tests
arrays that were out of synch and otherwise the same.
New internal function _cairo_surface_set_font_options is used to set them.
cairo_surface_create_similar propagates the font options of the other
surface into the newly created surface. Fixes bugs with font options in
fallback images and bug 4106.
