mirror of
https://salsa.debian.org/xorg-team/lib/pixman
synced 2025-09-01 02:10:49 +00:00
d1434d112c
Given an operator and two formats, this program will composite and
check all pixels where the red and blue channels are 0. That is, if
the two formats are a8r8g8b8 and a4r4g4b4, all source pixels matching
the mask
0xff00ff00
are composited with the given operator against all destination pixels
matching the mask
0xf0f0
and the result is then verified against the do_composite() function
that was moved to utils.c earlier.
This program reveals that a number of operators and format
combinations are not computed to within the precision currently
accepted by pixel_checker_t. For example:
check-formats over a8r8g8b8 r5g6b5 | grep failed | wc -l
30
reveals that there are 30 pixel combinations where OVER produces
insufficiently precise results for the a8r8g8b8 and r5g6b5 formats.
14 lines
455 B
Makefile
14 lines
455 B
Makefile
include $(top_srcdir)/test/Makefile.sources
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AM_CFLAGS = $(OPENMP_CFLAGS)
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AM_LDFLAGS = $(OPENMP_CFLAGS) $(TESTPROGS_EXTRA_LDFLAGS)
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LDADD = libutils.la $(top_builddir)/pixman/libpixman-1.la -lm $(PNG_LIBS)
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AM_CPPFLAGS = -I$(top_srcdir)/pixman -I$(top_builddir)/pixman $(PNG_CFLAGS)
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libutils_la_SOURCES = $(libutils_sources) $(libutils_headers)
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noinst_LTLIBRARIES = libutils.la
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noinst_PROGRAMS = $(TESTPROGRAMS) $(OTHERPROGRAMS)
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TESTS = $(TESTPROGRAMS)
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