This test checks that passing font variation settings via
font options has the desired effect. It checks this by reading
the effective axis values out of the FT_Face after creating
a font with these options.
Unicode characters in the Supplementary Multilingual Plane are encoded
as surrogate pairs in UTF-16. This test tries to verify that backends
do not perform UCS4 to UTF-16 conversion by truncation.
Test case for bug 89232 - painting a recording surface to a
pdf/ps surface omits objects on the recording surface with negative
coordinates even though the pattern matrix has transformed the objects
to within the page extents.
The image surface also fails when the recording surface is bounded.
In order to check the behaviour of the analytic rasteriser inside tor,
let's compare it against a very simple rasteriser that uses a rectiliner
256x256 sample grid.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This test exercises error scenario when creating over sized egl surface
that is larger than maximum framebuffer or texture dimensions of the
context
Signed-off-by: Ravi Nanjundappa <nravi.n@samsung.com>
Add test case for https://bugs.freedesktop.org/show_bug.cgi?id=68382
Something has regressed in the recording surface. All the recording
surface based backends lose the alpha from the paint_With_alpha.
This adds pixman-downscale.c, which tests correctness of PNG images
scaled down using pixman routines.
Signed-off-by: Bryce Harrington <b.harrington@samsung.com>
When creating a texture surface that is larger than the maximum
framebuffer or texture dimensions of the context, return a surface in
error. Previously the code failed an assertion, but this prevents an
application from easily detecting when to fall back.
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
After acquiring a GL device and the same GL context, surface, and
display combination is already active outside of Cairo, do not ask EGL
or GLX to change the current context as that may cause a flush on some
drivers. Also do not unset the context when releasing the device for the
same reason.
This creates an image surface with a non-natural stride and paints it to a
similar surface.
In the xcb backend, this causes a call to _cairo_xcb_connection_put_subimage()
which tries to send a huge PutImage request. As a result, xcb kills the X11
connection.
Signed-off-by: Uli Schlachter <psychon@znc.in>
From https://bugs.freedesktop.org/show_bug.cgi?id=53841:
"Rectangle drawn incorrectly when it has zero height
and miter limit greater than 1.414"
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Carl Worth demonstrated a glaring bug in the new stroking code,
introduced in commit 545f30856a (stroke: Convert the outlines
into contour and then into a polygon), whereby only a bevel join was
being used to connect segments around a sharp inflection point.
This adds the two examples he reported to the test suite.
Exercise the bug Keith found in the xlib backend, which claimed the
output from the rectangular tessellator would always be sorted.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
As discussed, overloading the cairo_surface_t semantics to include
sources (i.e. read-only surfaces) was duplicating the definition of
cairo_pattern_t. So rather than introduce a new surface type with
pattern semantics, start along the thorny road of extensible pattern
types.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
