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radeonsi: preserve NaNs in draw-based resource_copy_region

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Gfx copies are faster sometimes, so they should be able to copy anything.

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 2024-03-28 15:52:57 -04:00 • committed by Marge Bot
parent a03df53d3b
commit 8235d3aa19
1 changed files with 7 additions and 3 deletions
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10
src/gallium/drivers/radeonsi/si_blit.c
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@ -991,7 +991,12 @@ void si_gfx_copy_image(struct si_context *sctx, struct pipe_resource *dst,
assert(!util_format_is_compressed(src->format) && !util_format_is_compressed(dst->format));
assert(!util_format_is_subsampled_422(src->format));
if (!util_blitter_is_copy_supported(sctx->blitter, dst, src)) {
/* We can't blit as floats because it wouldn't preserve NaNs.
* Z32_FLOAT needs to keep using floats.
*/
if ((util_format_is_float(dst_templ.format) &&
!util_format_is_depth_or_stencil(dst_templ.format)) ||
!util_blitter_is_copy_supported(sctx->blitter, dst, src)) {
switch (ssrc->surface.bpe) {
case 1:
dst_templ.format = PIPE_FORMAT_R8_UNORM;
@ -1023,9 +1028,8 @@ void si_gfx_copy_image(struct si_context *sctx, struct pipe_resource *dst,
/* SNORM blitting has precision issues on some chips. Use the SINT
* equivalent instead, which doesn't force DCC decompression.
*/
if (util_format_is_snorm(dst_templ.format)) {
if (util_format_is_snorm(dst_templ.format))
dst_templ.format = src_templ.format = util_format_snorm_to_sint(dst_templ.format);
}
vi_disable_dcc_if_incompatible_format(sctx, dst, dst_level, dst_templ.format);
vi_disable_dcc_if_incompatible_format(sctx, src, src_level, src_templ.format);