CoreText uses different advances depending on the font size, with very
small point sizes sometimes getting advances that are smaller than the
glyph's width. This is manifested in the Apple Color Emoji font with the
Emoji glyphs having a width of 1.25 and an advance width of 1.0. That
results in overlapping emoji when they're in a string.
The small spacing difference also affects 3 tests so updated reference
images are included in this commit.
# Please enter the commit message for your changes. Lines starting
When `_cairo_svg_surface_create_for_document()` failed, it will free the
`document` by `_cairo_svg_document_destroy()`. But after `_cairo_svg_surface_create_for_document` return a error status, the `document` is still used and destoryed by `_cairo_svg_document_destroy()`.
We remove the redundant `_cairo_svg_document_destroy()` in `_cairo_svg_surface_create_for_stream_internal` to avoid this bug.
This fixes#561.
Signed-off-by: Feysh INC <opensource@feysh.com>
When `font_face` is freed by `cairo_font_face_destroy()` at line 1,150,
the following call `_cairo_font_face_set_error (font_face, status)`
causes a use after free.
We moved up the `_cairo_font_face_set_error (font_face, status)` before
`cairo_font_face_destroy()` to avoid the use after free.
Signed-off-by: Feysh INC <opensource@feysh.com>
When `_mono_scan_converter_init` failed,
`self->converter->polygon` will be freed by `polygon_fini()`. However,
the `bail` branch still called `polygon_fini()` to free
`self->converter->polygon`.
We remvoe the redundant `polygon_fini()` in `_mono_scan_converter_init`
to avoid the double free.
This fixes#557.
Signed-off-by: Feysh INC <opensource@feysh.com>
When taking the CAIRO_PS_COMPRESS_DEFLATE branch of the switch
statement in _cairo_ps_surface_emit_base85_string, memory is freed
a second time when closing the deflate_stream fails after performing a
write.
The status is now simply returned instead of attempting to free it
again.
There may be different versions of fonts with the same name. As an
additional check, compare the 'head' table wich contains the checksum
for the font.
Also, load the DWrite tables directly to avoid the memcpy in
load_truetype_table.
If the default font is not found, return CAIRO_INT_STATUS_UNSUPPORTED
to cause _cairo_toy_font_face_create_impl_face to create the Twin user
font fallback.
In !309 Taylor R Campbell found a number of instances of ctype
incorrectly passed a signed char. In many cases, where only ASCII
characters are used, the code should have been using the cairo version
of the ctype function to avoid locale issues.
We really don't need to have SSH access if we're just checking for the
integrity of the next release. We can simply check if a specially
crafted file linking to the latest release is present.
