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15 Commits

Author SHA1 Message Date
Erik Abair 9723b435fb nv2a: Make multiplication by 0 match HW behavior. 
Fixes #1008

The nv2a returns 0 for anything multiplied by zero, including exceptional
values such as Inf and NaN. Desktop GPUs do not enforce this, leading to
conditions where NaNs wipe out calculations and lead to erroneous behavior.

[Test](https://github.com/abaire/nxdk_vsh_tests/blob/main/src/tests/americasarmyshader.cpp)
[HW Results](https://github.com/abaire/nxdk_vsh_tests_golden_results/wiki/Results-AmericasArmyShader)
 2023-05-01 13:58:48 -07:00
Erik Abair 8d274e5f9a nv2a: Match inv_w qualifier to attribute qualifier 
Calculates both interpolated and flat shaded inv_w so that the appropriate
value may be used when undoing the perspective divide in the pixel shader.
 2022-07-13 16:16:38 -07:00
Erik Abair 4132845336 nv2a: Implement SET_SHADE_MODEL 2022-06-25 20:39:55 -07:00
Erik Abair 30829497d2 nv2a: Assert on unimplemented writable const register path 2022-06-10 16:28:04 -07:00
Erik Abair 176b574403 nv2a: Fix oFog write behavior with non-x destination masks. 2022-06-03 14:38:16 -07:00
Erik Abair 6dbd51fbe1 nv2a: Fix MAC/ILU independence 2022-04-24 15:34:14 -07:00
Erik Abair f245e08560 nv2a: Set oFog.x with most significant oFog mutation 2022-04-24 15:02:39 -07:00
Matt Borgerson 50a5368f47 Revert "nv2a/vsh: Use double precision in clip range remap" 
This reverts commit 1a15d83c44.
 2021-11-19 13:48:04 -07:00
Erik Abair 1a15d83c44
nv2a/vsh: Use double precision in clip range remap 2021-11-18 17:17:59 -07:00
Erik Abair db2a6aaf6d nv2a: Skip input decode if MAC and ILU are both NOP. 2021-10-12 00:17:50 -07:00
Matt Borgerson ee18e7bf35 nv2a: Add custom mutable string object (QString is now immutable) 2021-04-18 23:41:28 -07:00
Matt Borgerson 851407e07c nv2a/vsh: Output muxed op first to avoid temp clobber 2021-03-06 19:06:47 -07:00
Matt Borgerson fc73893f3c nv2a: Fix clip range scaling precision loss 2021-03-03 18:10:49 -07:00
Matt Borgerson e431cbff82 nv2a: Fix compiler nits 2020-12-30 03:51:47 -07:00
Matt Borgerson a3fc742bbe nv2a: Remove nv2a_ prefix on files in nv2a dir 2020-10-18 00:55:08 -07:00