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radeonsi: add a workaround to fix KHR-GL45.texture_view.view_classes on gfx9

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Acked-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4761>
This commit is contained in:
Marek Olšák 2020-04-26 10:50:24 -04:00 • committed by Marge Bot
parent d6acdbd935
commit 19db1a540c
1 changed files with 15 additions and 0 deletions
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15
src/gallium/drivers/radeonsi/si_texture.c
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@ -1843,6 +1843,21 @@ static void *si_texture_transfer_map(struct pipe_context *ctx, struct pipe_resou
assert(!(texture->flags & SI_RESOURCE_FLAG_TRANSFER));
assert(box->width && box->height && box->depth);
/* If we are uploading into FP16 or R11G11B10_FLOAT via a blit, CB clobbers NaNs,
* so in order to preserve them exactly, we have to use the compute blit.
* The compute blit is used only when the destination doesn't have DCC, so
* disable it here, which is kinda a hack.
*
* This makes KHR-GL45.texture_view.view_classes pass on gfx9.
* gfx10 has the same issue, but the test doesn't use a large enough texture
* to enable DCC and fail, so it always passes.
*/
const struct util_format_description *desc = util_format_description(texture->format);
if (vi_dcc_enabled(tex, level) &&
desc->channel[0].type == UTIL_FORMAT_TYPE_FLOAT &&
desc->channel[0].size < 32)
si_texture_disable_dcc(sctx, tex);
if (tex->is_depth) {
/* Depth textures use staging unconditionally. */
use_staging_texture = true;