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Don't assume an error means the test failed, check for injected allocation
errors.
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We frequently use '-' within the test name or format name and so we
encounter confusion as '-' is also used as the field separator. At times
this has caused a new test to break an old test because the new test would
match one of the old test's target specific reference images. So switch
everything over to use '.' between fields (test name, target, format,
subtest, etc.).
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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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If the filter mode is anything other than DEFAILT, FAST or NEAREST set the
Interpolate flag in the image dictionary so that a smoothing filter is
applied when rasterising the vector file.
As we have no control over the implementation of the Interpolate filter
(the PS/PDF specifications leave it undefined) we need to capture the
output of poppler/GS and update our reference images. (For a couple of
tests, the filtering is irrelevant so for those we set the filter to
NEAREST.)
Note that GhostScript's Interpolate filter does not work on rotated images
(and a variety of other transformations) so several of the PS reference
images have use nearest-neighbour sampling instead of a bilinear filter.
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Having checked all the possible PNG formats, report any failures.
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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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Check that when loading from index/gray/rgb PNGs, with and without
alpha/transparency, that the correct surface is generated by read_png(),
i.e. if the PNG contains an alpha channel then the image must be an
ARGB32 surface.
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Use the png_struct->error_ptr to propagate the error status from the
user/stdio read and write functions through the png_error() to the
cairo_surface_write_to_png*() and cairo_surface_read_from_png*()
functions. From there the error is returned back to the user either
directly or as the most appropriate error surface.
(Fixes https://bugs.freedesktop.org/show_bug.cgi?id=6909)
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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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CAIRO_STATUS_NO_MEMORY CAIRO_STATUS_FILE_NOT_FOUND CAIRO_STATUS_READ_ERROR
Add new CAIRO_STATUS_FILE_NOT_FOUND.
Add new _cairo_surface_nil_read_error and _cairo_surface_nil_file_not_found.
Test the new FILE_NOT_FOUND error.
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Closes bug #3863 (thanks to Steve Chaplin).
Add a test to actually call cairo_image_surface_create_from_png_stream.
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cairo_image_surface_create_from_png function.
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Switch all error messages from fprintf(stderr,...) to cairo_test_log(...).
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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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Track PNG interface changes, (no more include of cairo-png.h, cairo_surface_write_png renamed to cairo_surface_write_to_png).
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Call it with a stdio write callback. (cairo_surface_write_png_to_stream): New function to write a surface to a PNG stream. (cairo_image_surface_create_from_png): Likewise, move most of the code to read_png(), clean up error handling and reduce this function to calling read_png() with a stdio based read function. (cairo_image_surface_create_from_png_stream): New function to create an image surface from a PNG stream.
New functions to get widht and height of an image surface.
Add new prototype and error codes.
Adjust to new PNG API.
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Propagate the unsigned char* change down the stack.
Add cast since XImage uses char* rather than unsigned char*.
Fix memory leak of image data.
Switch to use cairo_surface_write_png rather than a custom write_png_argb32.
Add test to exercise the cairo_image_surface_create_for_png function.
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