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r300: Disable fp16 and int16 in swtcl vertex shaders. 

We already had them disabled for hwtcl, but in the swtcl case gallivm's
param query would return (nir) support even though nir-to-tgsi couldn't
handle it because TGSI doesn't do fp16/int16.

Fixes: 7d2ea9b0ed ("r300: Request NIR shaders from mesa/st and use NIR-to-TGSI.")
Reviewed-by: Matt Turner <mattst88@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/14809>
This commit is contained in:
Emma Anholt 2022-01-31 10:11:15 -08:00 committed by Marge Bot
parent 965d58b058
commit be78087655
1 changed files with 9 additions and 0 deletions
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9
src/gallium/drivers/r300/r300_screen.c
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@ -350,6 +350,15 @@ static int r300_get_shader_param(struct pipe_screen *pscreen,
case PIPE_SHADER_CAP_INTEGERS:
return 0;
/* Even if gallivm NIR can do this, we call nir_to_tgsi manually and
* TGSI can't.
*/
case PIPE_SHADER_CAP_INT16:
case PIPE_SHADER_CAP_FP16:
case PIPE_SHADER_CAP_FP16_DERIVATIVES:
case PIPE_SHADER_CAP_FP16_CONST_BUFFERS:
return 0;
/* While draw could normally handle this for the VS, the NIR lowering
* to regs can't handle our non-native-integers, so we have to lower to
* if ladders.