| Commit message (Collapse) | Author | Age | Files | Lines |
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The issue being that as the on-stack data is being referenced via a
zero-copy snapshot outside of the functions scope as the surface is only
finished and the source written long after the draw() returns. The
correct procedure is that the user must call cairo_surface_finish()
prior to any surface becoming inaccessible. In this case, this triggers
the snapshot to preserve a copy of the data whilst it is still valid.
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Avoid calling libtool to link every single test case, by building just one
binary from all the sources.
This binary is then given the task of choosing tests to run (based on user
selection and individual test requirement), forking each test into its own
process and accumulating the results.
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I swear that when I said that it was a rounding error, I was looking at an
image where the squares were overlapping the lines and had a listing of
all the coordinates used. However, the current output on all the machines
I have to hand is correct so I believe the underlying bug to be fixed.
Update the reference images for the external renderers because (a) GS
exhibits the same bug cairo had and (b) librvsg/PDF do not use NEAREST
when applying surface patterns, so the squares are blurred as a result.
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Avoid requiring (an absent!) rgb24 ref image by using an opaque grey
background. Confirm the reference image is identical to the old one
(modulo the background change) using GIMP.
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In order to run under memfault, the framework is first extended to handle
running concurrent tests - i.e. multi-threading. (Not that this is a
requirement for memfault, instead it shares a common goal of storing
per-test data). To that end all the global data is moved into a per-test
context and the targets are adjusted to avoid overlap on shared, global
resources (such as output files and frame buffers). In order to preserve
the simplicity of the standard draw routines, the context is not passed
explicitly as a parameter to the routines, but is instead attached to the
cairo_t via the user_data.
For the masochist, to enable the tests to be run across multiple threads
simply set the environment variable CAIRO_TEST_NUM_THREADS to the desired
number.
In the long run, we can hope the need for memfault (runtime testing of
error paths) will be mitigated by static analysis. A promising candidate
for this task would appear to be http://hal.cs.berkeley.edu/cil/.
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- Remove cairo_test_expect_failure. cairo-test.c now checks
env var CAIRO_XFAIL_TESTS to see if the running test is
expected to fail. The reason for expected failure is
appended to the test description.
- Test description is written out.
- Failed/crashed tests also write a line out to stderr (in red),
so one can now redirect stdout to /dev/null to only see failures.
- cairo_test() has been changed to not take the draw function
anymore, instead, draw function is now part of the test struct.
- "make check" doesn't allow limiting backends to test using env
var anymore. To limit backends to test, one should use the
TARGETS variable on the make command line.
- "make check-valgrind" now writes its log to valgrind-log instead
of valgrind.log, to not interfere with test log file processing.
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This patch was produced with the following (GNU) sed script:
sed -i -r -e 's/^[ \t]+$//'
run on all *.[ch] files within cairo.
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Some tests were using source surfaces created as ARGB32 even though all
alpha values are entirely opaque. This meant these tests were triggering
more fallbacks than strictly necessary for what the tests are ttrying to
do.
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(not copying source surface pattern data).
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Fix declaration of image data array to be uint32_t rather than unsigned long. Fixes four out of the remaining five failures in bug #4245.
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Remove cairo_show_surface. Add new cairo_set_source_surface.
Remove _cairo_gstate_show_surface.
Replace calls to cairo_show_surface with cairo_set_source_surface; cairo_paint.
Fix messages to prefer - over _.
Fix documentation.
Three new tests to exercise set_source_surface more completely, (two of these are expected failures dues to outstanding bugs).
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