Found via `codespell -i 3 -w -I ../cairo-word-whitelist.txt -L tim,ned,uint`
Follow up of 12cb59beReviewed-by: Bryce Harrington <bryce@bryceharrington.org>

IGT wants to add support for planes with a bit depth >10, which
requires a higher precision format than we have currently.

I'm using RGBA as format, because of its existence in OpenGL.
With the new formats we can directly convert our bytes to half float,
or multiply a colro vector with a matrix to go to the Y'CbCr colorspace.

This requires pixman 0.36.0, so bump the version requirement.
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: Bryce Harrington <bryce@bryceharrington.org>

Run the command below suggested by geirha in ##sed@irc.freenode.net.

    git grep -l 'http://.*freedesktop.org' | xargs sed -i 's|http\(://\([[:alnum:].-]*\.\)\{0,1\}freedesktop\.org\)|https\1|g'
Signed-off-by: Paul Menzel <pmenzel@molgen.mpg.de>

Found using `codespell -q 3 -I cairo-whitelist.txt`
whereby whitelist contained:
```
amin
iff
lod
writen
```
Reviewed-by: Bryce Harrington <bryce@osg.samsung.com>

On AIX 6.1, getdelim() and getline() are not provided by default,
causing a gcc compilation error.  With _GETDELIM defined, AIX's stdio.h
header provides definitions for these routines.

Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=89356Reviewed-by: Bryce Harrington <bryce@osg.samsung.com>

Added a new command line option FORMAT which can take rgb and/or rgba
values which enables the execution of tests only for the given FORMAT
For ex:
(1). CAIRO_TESTS="zero-alpha" make test TARGETS=ps2,image FORMAT=rgba,rgb
This command runs the zero-alpha test for both ps2 and image backends
with argb32 and rgb24 content formats.
(2). CAIRO_TESTS="zero-alpha" make test TARGETS=ps2,image FORMAT=rgba
This command runs the zero-alpha test for both ps2 and image backends
with argb32 content format and so on.
Signed-off-by: Ravi Nanjundappa <nravi.n@samsung.com>
Reviewed-by: Bryce Harrington <bryce@osg.samsung.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>

This commit covers one of the left out modifications from
"commit cd11a4ff" by Bryce.
It removes the duplicate macro definition in cairo-perf-diff-files.c
which by default includes the cairo-perf.h having MAX macro defnition.
Signed-off-by: Ravi Nanjundappa <nravi.n@samsung.com>

These macros are standard in src's cairoint.h and test's cairo-test.h
internal header files, so for consistency do the same thing with perf's
cairo-perf.h.
Reviewed-by: Uli Schlachter <psychon@znc.in>

This quells the following warning:

  perf/micro/hatching.c:39:5: warning: cannot optimize loop, the
  loop counter may overflow

Width and height aren't going to be negative so enforce it so that the
compiler can do whatever optimization it wants to do.
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>

The macro benchmarks were moved to a separate repository some time ago,
but the perf README still refers to these tests as if they were still
present, which may lead to some confusion.  Instead, consolodate the
macro benchmark documentation with the macro benchmarks, and focus this
README on just the (still in tree) micro-benchmarks.
Signed-off-by: Bryce Harrington <b.harrington@samsung.com>
Signed-off-by: Uli Schlachter <psychon@znc.in>

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>

Remove the intentional #error for non-UNIX path used to remind me to fix
up configure.ac.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>

If we have more rows than the max_count in any column, we end up
stretching the histogram vertically, which makes it harder to read.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>

If running ./cairo-perf-print in a terminal, query the terminal size and
rescale the histogram to use the maximum available space.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>

If you call ./cairo-perf-print --histogram results.txt, it will then
print a histogram of the results, one per test. Ideally, you should see
a skewed distribution (with a negative skew representing that most results
run in optimal time), but random sampling errors (scheduling,
throttling, general inefficiency etc) will push it more towards a normal
distribution.

For example,
|                                                             x                |
|                                                             x xx             |
|                                                             x xx             |
|                                                             x xx             |
|                                                             xxxx             |
|                                                             xxxx x           |
|                                                          x  xxxxxx           |
|                                                          x  xxxxxx           |
|                                                          xxxxxxxxx           |
|                                                          xxxxxxxxx           |
|                                                          xxxxxxxxx           |
|                                                         xxxxxxxxxxxx         |
|                                                         xxxxxxxxxxxx         |
|                                                         xxxxxxxxxxxx         |
|                                                        xxxxxxxxxxxxxx        |
|x                                                       xxxxxxxxxxxxxx        |
|x x                                                     xxxxxxxxxxxxxxx       |
|x x                                                     xxxxxxxxxxxxxxx       |
|x x                                                    xxxxxxxxxxxxxxxxx      |
|xxx                                                 x xxxxxxxxxxxxxxxxxxx     |
|xxx                                                xxxxxxxxxxxxxxxxxxxxxxxxx  |
|xxxxxx xxxx x x x   x xxx xx xxxxx xxx x xxx x xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx|
.------------------------------------------------------------------------------.
 xlib           firefox-fishtank  8298.44 1.53% (829/946)

Starts off reasonably, but quickly deteriorates as the integrated CPU/GPU
overheats and is forced to throttle.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>

Signed-off-by: Uli Schlachter <psychon@znc.in>

Fixes a regression from

commit 2855ff46
Author: Andrea Canciani <ranma42@gmail.com>
Date:   Wed Aug 31 16:42:03 2011 +0200

    perf: Reuse cairo-time

which dropped the essential call to synchronize when refactoring the
code.
Reported-by: Siarhei Siamashka <siarhei.siamashka@gmail.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>

The importance of writing to the scratch surface before retrieving an
image is that it makes that the write lands in the server queue, as well
as the GetImage, in order to serialise the timer against all the
operations.
Reported-by: Siarhei Siamashka <siarhei.siamashka@gmail.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>

Signed-off-by: Uli Schlachter <psychon@znc.in>

Although in this case the boolean values are guaranteed to be 1/0,
using them as true/false (in an if condition) seems much saner than
using them to limit the number of iterations on a for loop.

Fixes:

cairo-perf-micro.c:221:5: warning: cannot optimize possibly infinite
loops [-Wunsafe-loop-optimizations]

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>

Don't open code xstrdup, just use it.

The thread id is not used anymore (it is always == 0), so it can be
removed.

Some utilities were providing incorrect or incomplete usage
information.

Keep the option flags in alphabetical order. This makes it easier to
check for collisions or missing handlers.

Avoids an internal error when passing flags -c, -r or -v to
cairo-analyse-trace.

Just to measure the overhead and differences when switching between
antialiasing paths.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>