mutter/cogl
Simon McVittie a3cc62c285 cogl tests: Force defined behaviour for 24-bit left-shifts
When r is 128 or more, running tests compiled with the undefined behaviour
sanitizer (ubsan) reports:

test-utils.c:312:45: runtime error: left shift of 128 by 24 places cannot be represented in type 'int'

which indeed it cannot. Force the type to be unsigned 32-bit so that we
get defined behaviour.

Similarly, in test-atlas-migration, the left-shifted guint8 is promoted
to int, which again does not have enough non-sign bits available to
left-shift a value >= 128 by 24 bits. Again, force the shift to be done
in unsigned 32-bit space.

This was originally cogl!22, but applies equally to mutter's fork of cogl.

https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1271

Signed-off-by: Simon McVittie <smcv@debian.org>
2020-05-27 21:26:49 +00:00
..
cogl cogl/dma-buf: Add mmap/munmap helpers 2020-05-26 13:54:28 +00:00
cogl-pango cogl: Use autopointers to free structs on return 2020-04-12 21:40:20 +00:00
test-fixtures cogl tests: Force defined behaviour for 24-bit left-shifts 2020-05-27 21:26:49 +00:00
tests cogl tests: Force defined behaviour for 24-bit left-shifts 2020-05-27 21:26:49 +00:00
.gitignore cogl: Remove CoglPath and the tesselator 2020-04-08 11:38:48 +02:00
cogl-config.h.meson cogl: Add libsysprof capture based tracing 2019-05-31 11:55:56 -03:00
cogl-mutter-config.h.in
config-custom.h
meson.build cogl/dma-buf: Add API to synchronize reading 2020-05-26 13:54:28 +00:00