From: Marek Olšák <marek.ol...@amd.com>
Disabling the FP16 mode didn't help.
If needed, we can use this trick for blits too, but not for scaled blits.
+ 4 piglits
---
src/gallium/drivers/radeonsi/si_blit.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/src/gallium/drivers/radeonsi/si_blit.c
b/src/gallium/drivers/radeonsi/si_blit.c
index c892623..61ca2a8 100644
--- a/src/gallium/drivers/radeonsi/si_blit.c
+++ b/src/gallium/drivers/radeonsi/si_blit.c
@@ -522,7 +522,9 @@ void si_resource_copy_region(struct pipe_context *ctx,
src_box = &sbox;
src_force_level = src_level;
- } else if (!util_blitter_is_copy_supported(sctx->blitter, dst, src)) {
+ } else if (!util_blitter_is_copy_supported(sctx->blitter, dst, src) ||
+ /* also *8_SNORM has precision issues, use UNORM instead */
+ util_format_is_snorm(src->format)) {
if (util_format_is_subsampled_422(src->format)) {
src_templ.format = PIPE_FORMAT_R8G8B8A8_UINT;
dst_templ.format = PIPE_FORMAT_R8G8B8A8_UINT;
--
2.1.4
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