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radeonsi: only expose 8 EQAA samples due to shader limitations

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Reviewed-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/28725>
This commit is contained in:
Marek Olšák 2024-04-13 17:13:42 -04:00 • committed by Marge Bot
parent 256cc77f84
commit 18bcdbb634
1 changed files with 5 additions and 5 deletions
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10
src/gallium/drivers/radeonsi/si_state.c
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@ -2515,14 +2515,14 @@ static bool si_is_format_supported(struct pipe_screen *screen, enum pipe_format
/* Chips with 1 RB don't increment occlusion queries at 16x MSAA sample rate,
* so don't expose 16 samples there.
*
* EQAA also uses max 8 samples because our FMASK fetches only load 32 bits and
* would need to be changed to 64 bits for 16 samples.
*/
const unsigned max_eqaa_samples =
(sscreen->info.gfx_level >= GFX11 ||
util_bitcount64(sscreen->info.enabled_rb_mask) <= 1) ? 8 : 16;
const unsigned max_samples = 8;
/* MSAA support without framebuffer attachments. */
if (format == PIPE_FORMAT_NONE && sample_count <= max_eqaa_samples)
if (format == PIPE_FORMAT_NONE && sample_count <= max_samples)
return true;
if (!sscreen->info.has_eqaa_surface_allocator || util_format_is_depth_or_stencil(format)) {
@ -2531,7 +2531,7 @@ static bool si_is_format_supported(struct pipe_screen *screen, enum pipe_format
return false;
} else {
/* Color with EQAA. */
if (sample_count > max_eqaa_samples || storage_sample_count > max_samples)
if (sample_count > max_samples || storage_sample_count > max_samples)
return false;
}
}