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Author SHA1 Message Date
Chris Wilson
1237eedff3 Check for error whilst trying to advance along a text string. 
The text perf-case tries to fill the region with a single text string,
but fails to detect when the current point does not advance due to an
error. This causes the perf-case to enter an infinite loop, so we break
out when the cairo_status() has been set.
 2007-04-09 16:13:16 -07:00
Chris Wilson
ea4945850a Avoid using substituted surfaces for xlib operations. 
Detect when a substitute image surface is returned for a solid pattern,
and avoid mixed image/xlib composite operations. This can happen for example
if there is a resource allocation failure during creating a similar surface.
 2007-04-09 16:12:41 -07:00
Chris Wilson
751976970b Handle failure to allocate a GC. 2007-04-09 16:11:22 -07:00
Chris Wilson
c6055dc349 Reset cairo_scaled_font_map after freeing. 
Along the error path the global font map was freed but not reset,
causing segfaults on any subsequent use of a cairo_scaled_font_t.
 2007-04-09 16:08:21 -07:00
Chris Wilson
65de47d8bc cairo-bentley-ottmann - check init for failure 
This was found during a cairo_static pass on an alternative branch...
Add the trivial error propagation for _cairo_bo_event_queue_init()
 2007-04-09 16:08:00 -07:00
Chris Wilson
b4cb0306b4 cairo-type1-fallback - propagate error returns 
Add status returns in order to propagate a matrix inversion failure
up through the call stack.
 2007-04-09 16:06:51 -07:00
Chris Wilson
b29d78dda1 cairo-svg-surface - propagate some error returns 
Add status returns to functions in order to propagate an error up
the call stack.

For the emit_*_pattern we add a new status return even when when
the functon return CAIRO_STATUS_SUCCESS unconditionally in order for
the caller to handle all cases in a consistent manner.
 2007-04-09 16:05:30 -07:00
Chris Wilson
3f7ca6ef5b cairo-pen - cairo_pen_init() can fail propagate its error. 
Add status returns in order to propagate an intialisation failure
back up the call chain.
 2007-04-09 15:51:31 -07:00
Chris Wilson
67f13b3518 cairo-bentley-ottmann/skip-list - catch and propagate out-of-memory errors 
The skip list inserts could return NULL indicating an out-of-memory error.
In order to handle this, propagate the error up the call stack.
 2007-04-09 15:12:15 +01:00
Chris Wilson
293122279f cairo-path-stroke - add trivial missing status checks 
Propagate the error status.
 2007-04-09 15:11:47 +01:00
Chris Wilson
2f2bff038c buffer-diff - check for any errors whilst writing the png 
Propagate any errors from writing out the png.
 2007-04-09 15:08:45 +01:00
Chris Wilson
79424fc646 cairo - add missing status checks 
Add a few missing status checks and set the error on the context when
applicable.
 2007-04-09 15:08:29 +01:00
Chris Wilson
a34a32fd99 cairo-type1-fallback - check for an error during cleanup 
The cleanup path is shared between the error path and the true path, and
so any error along it can not be ignored.
 2007-04-09 15:07:27 +01:00
Chris Wilson
d2efadc84d cairo-svg-surface - propagate error returns 
Add a couple of missing checks for error statues.
 2007-04-09 15:07:10 +01:00
Chris Wilson
02264b40f5 cairo-surface-fallback - propagate error returns 
_cairo_surface_composite() can fail so check for and error return and
propagate.
 2007-04-09 15:06:49 +01:00
Chris Wilson
76b27fb0e8 cairo-ps-surface - add a couple of status checks 
Handle a couple more error returns.
 2007-04-09 15:06:25 +01:00
Chris Wilson
619425a8b3 cairo-polygon - trivial propagation of error status 
_cairo_polygon_move_to() returns an error status so use it.
 2007-04-09 15:06:11 +01:00
Chris Wilson
4b195779a4 cairo-pen - trivial propagation of error status 
Add a couple of missing checks for error statuses and correct the
error path cleanup for _cairo_pen_stroke_spline().
 2007-04-09 15:05:58 +01:00
Chris Wilson
66d3e25202 cairo-pdf-surface - propagate error status 
Catch and propagate any error status.
 2007-04-09 15:05:45 +01:00
Chris Wilson
b32a5b1dc6 cairo-pattern - propagate status 
Catch, cleanup and propagate after an error return.
 2007-04-09 15:05:35 +01:00
Chris Wilson
fd49bbb4b2 cairo-path - check for failure during _cairo_path_fixed_interpret 
Catch an error return from _cairo_path_fixed_interpret() and return
it. Similary check for an error code in cairo_status() before returning
success.
 2007-04-09 15:05:24 +01:00
Chris Wilson
814830f63b cairo-path-fill - trivial missing unused result 
Actually assign the result that is tested on the next line...
 2007-04-09 15:05:13 +01:00
Chris Wilson
7ab1f62c60 cairo-paginated-surface - fix up the trivial unused result 
Check for status returns and propagate, cleaning up as necessary.
 2007-04-09 15:04:58 +01:00
Chris Wilson
78c0d62ba7 cairo-meta-surface - propagate trivial status return 
_cairo_path_fixed_init_copy() could fail so propagate it's status.
 2007-04-09 15:04:47 +01:00
Chris Wilson
75cc5e04d5 cairo-image-surface - propagate error returns from pixman. 
pixman does occasionally return an error - in such circumstances we
should propagate it.
 2007-04-09 15:04:30 +01:00
Chris Wilson
dee9a53029 cairo-gstate - fix the trivial unchecked returns 
Check for an error return and propagate.
 2007-04-09 15:04:17 +01:00
Chris Wilson
de264af2c6 cairo-ft-font - handle trivial failures 
Catch the status return, cleanup and propagate the error.
 2007-04-09 15:03:59 +01:00
Chris Wilson
14c8dfb0b9 cairo-clip - handle trivial pixman failures 
Detect the simple cases when pixman returns an error, ie an OOM
condition, and propagate the error status.
 2007-04-09 15:03:34 +01:00
Chris Wilson
274c20c27a cairo-boilerplate - handle failure to set user data 
After failing to set the user data on a surface, clean up and return NULL.
 2007-04-09 15:02:17 +01:00
Chris Wilson
46eab95698 Add attribute(warn_unused_result) 
This adds a compiler check that the function result is used by the caller
and enables it by default for all cairo_private functions and for public
API that returns a cairo_status_t.

It has been discussed that to extend the warnings to all functions, a
new function type could been introduced to cover static functions:
cairo_static. This has not been done at the present time in order to
minimise the churn and focus on the more common errors.

In order to reduce the warning spew generated by gcc for invalid use of
this attribute, -Wno-attributes is added to CFLAGS. This has the
unfortunate side-effect of masking future warnings for all attributes -
be warned!
 2007-04-09 15:01:58 +01:00
Behdad Esfahbod
9da86e4a38 Add references to the skiplist paper 2007-04-08 22:56:30 -04:00
Behdad Esfahbod
ad0e13805c [cairo-skiplist] Clarify MAX_LEVEL in comment, and adjust accordingly 
Reading the code, MAX_LEVEL is in fact what could have been named
MAX_NUM_LEVELS.  That is, it is maximum possible level plus one.
All code is correct: it uses MAX_LEVEL as array size and never produces
a level of MAX_LEVEL.  The comment is fixed.
 2007-04-08 22:51:10 -04:00
Behdad Esfahbod
e8072e6e0a [test,perf] Make them rebuild boilerplate when src is changed 2007-04-08 22:03:46 -04:00
Behdad Esfahbod
6f93092217 Rename pixman_region_uninit to pixman_region_fini 2007-04-08 22:03:38 -04:00
Behdad Esfahbod
4f8a04b1c9 [pixman-image] Simply initialization given that there is no clip 2007-04-08 21:55:45 -04:00
Mathias Hasselmann
df9ea31df5 [pixman-region] Separate pixman_region_init 
Most of the time pixman_region_init is called without any extents, and
followed by a pixman_region_union_rect, used to used to initialize
rectangular regions. pixman_region_union_rect is not that cheap, but
the sequence is called quite often. So it should be worth introducing
a specialized and fast function for this sequence.

This introduces pixman_region_init_rect.  This new function makes
_cairo_region_init_from_rectangle obsolete.

Also removes the extent argument from pixman_region_init as it was
called with NULL most of the time.  A pixman_region_init_with_extents
is added for the general case.
 2007-04-08 21:49:46 -04:00
Mathias Hasselmann
9436959a83 Update function map 2007-04-08 21:36:34 -04:00
Mathias Hasselmann
99f4bfada8 Remove abdoned pixman_region_{create,destroy} 2007-04-08 21:36:06 -04:00
Mathias Hasselmann
4532c023e0 Make clientClip region static, remove abdoned CT_PIXMAP code paths 2007-04-08 21:35:58 -04:00
Mathias Hasselmann
65f269f3a4 Avoid pixman_region_create in pixman_composite{,General} 2007-04-08 21:34:10 -04:00
Mathias Hasselmann
82cc451148 Make clip regions of pixman_image_t static 2007-04-08 21:32:52 -04:00
Mathias Hasselmann
0413715337 Avoid pixman_region_create in pixman_color_rects 2007-04-08 21:27:34 -04:00
Mathias Hasselmann
5a6ca4794b Replace pixman_region_create_simple by pixman_region_init 2007-04-08 21:25:25 -04:00
Mathias Hasselmann
f9057f2752 Avoid pixman_create_region in glitz-surface 2007-04-08 21:24:35 -04:00
Mathias Hasselmann
82cbb6886c Remove redundant _cairo_clip_fini function 2007-04-08 21:23:47 -04:00
Mathias Hasselmann
5ae309c456 Avoid pixman_region_create in _cairo_traps_extract_region 2007-04-08 21:23:13 -04:00
Mathias Hasselmann
241482b550 Avoid malloc in _cairo_region_create_from_rectangle 2007-04-08 21:12:02 -04:00
Mathias Hasselmann
efc9775149 Make sure clip->region is always initialized 2007-04-08 21:10:58 -04:00
Mathias Hasselmann
0e7df34e07 Make region of cairo_clip_t static 2007-04-08 21:10:12 -04:00
Mathias Hasselmann
ced7b4a4ab Make pixman_region_{init,uninit} public 2007-04-08 20:38:32 -04:00