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lavapipe: bump image alignment up to 64 bytes

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We can't query the actually required alignment from llvmpipe, but 16
bytes is insufficient. In particular, llvmpipe's pixel backend code for
depth/stencil will load/store 4 values at a time, which crashes
with d32s8x24 format if alignment is only 16 bytes (the color backend
does similar things but will use unaligned loads if alignment exceeds
16 bytes at least for now).
32 bytes would be enough, however the "ordinary" llvmpipe resource
layout code currently always aligns to at least 64 bytes, so use
this value as well.

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/26724>
This commit is contained in:
Roland Scheidegger 2023-12-16 15:40:55 +01:00 • committed by Marge Bot
parent 4d93aac74d
commit e61fae6eb8
1 changed files with 1 additions and 1 deletions
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2
src/gallium/frontends/lavapipe/lvp_image.c
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@ -42,7 +42,7 @@ lvp_image_create(VkDevice _device,
if (image == NULL)
return vk_error(device, VK_ERROR_OUT_OF_HOST_MEMORY);
image->alignment = 16;
image->alignment = 64;
image->plane_count = vk_format_get_plane_count(pCreateInfo->format);
image->disjoint = image->plane_count > 1 &&
(pCreateInfo->flags & VK_IMAGE_CREATE_DISJOINT_BIT);