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tu: Support multisample image clears

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We may need shader workarounds for some formats, but for now this seems
to work at least as well as the gmem path for clearing multisample
attachments. And soon we'll start calling this even on the gmem path,
since we leave the final decision of whether to use sysmem or not up
till the end, so we can't have it assert or otherwise working tests
would assert.

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/merge_requests/3713>
This commit is contained in:
Connor Abbott 2020-02-07 13:43:48 +01:00 • committed by Jonathan Marek
parent a5fb515301
commit ab3db20cb5
1 changed files with 6 additions and 1 deletions
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7
src/freedreno/vulkan/tu_blit.c
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@ -268,7 +268,12 @@ void tu_blit(struct tu_cmd_buffer *cmdbuf, struct tu_cs *cs,
/* unsupported format cleared as UINT32 */
if (blt->dst.fmt == VK_FORMAT_E5B9G9R9_UFLOAT_PACK32)
blt->dst.fmt = VK_FORMAT_R32_UINT;
assert(blt->dst.samples == 1); /* TODO */
/* TODO: multisample image clearing also seems not to work with certain
* formats. The blob uses a shader-based clear in these cases.
*/
blt->dst.x *= blt->dst.samples;
blt->dst.width *= blt->dst.samples;
blt->dst.samples = 1;
blt->src = blt->dst;
break;
default: