musl itself expects to be configured to compile with either
-ffloat-store or -fexcess-precision=standard - but when imported
into Wine, those flags aren't used.
This seems to be essential for getting reasonable precision
from some math functions such as exp2() - without the expected
precision truncation, the output value of exp2() can be off by
as much as 0.2% in some cases.
As Wine doesn't build the musl sources with those flags, use
volatile to force storing/reloading floats in order to limit
their intermediate precision, as musl expects. Only do this on
i386 where this is known be required.
This fixes https://bugs.winehq.org/show_bug.cgi?id=56372.
Apparently this issue only appears when compiled with GCC; with
Clang, this already works as expected.
Signed-off-by: Martin Storsjö <martin(a)martin.st>
--
https://gitlab.winehq.org/wine/wine/-/merge_requests/5276
Some cleanup for expressions, sanitizing the structure a bit especially for abstract operations with multiple args.
I also found out about named bison variables, implicit (as `$token` referring to `token`), or explicit (as `$name` referring to `token[name]`). I think it would make the rules much more readable so I started using them here. My plan is to add them progressively to the rules, unless there's some good reason not to (like idk how portable they are, if that's something we should be worried about).
--
https://gitlab.winehq.org/wine/wine/-/merge_requests/4201
Signed-off-by: Joel Holdsworth <joel(a)airwebreathe.org.uk>
--
v2: ntdll: Add support for FILE_{RENAME,LINK}_POSIX_SEMANTICS.
ntdll: Factor out get_inode_open_sharing.
ntdll/test: Add tests for FILE_LINK_POSIX_SEMANTICS.
ntdll/test: Add tests for FILE_RENAME_POSIX_SEMANTICS.
https://gitlab.winehq.org/wine/wine/-/merge_requests/4457
General idea of this test is to show that a lot of factors influence the fog when transformed and untransformed vertex format was used:
- Directly changing z and w (which is not equal in the corners).
- Changing projection matrix that change z and w.
- Using different programmable/ff vs/ps shader.
- Using different depth bias.
- Chaging depth in pixel shader (oDepth) may or may not affect to colors depending on the vendor implementation.
- And various combinations of above.
This gives `succ` in all cases on this configs:
- Windows 10 with Radeon HD 8400 or Ivy Bridge GT1 (Intel HD Graphics).
- Windows 7 with Radeon HD 6450.
- Windows XP with GeForce Go 7300.
--
v2: d3d9/tests: test table fog z vs rhw with shaders, depth bias, oDepth..
https://gitlab.winehq.org/wine/wine/-/merge_requests/2657