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zink: clamp out partial texels when creating bufferviews

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this is an illegal alignment, so clamp the range to the nearest
texel offset since the shader should be hitting the robustness
case for the partial texel

affects:
dEQP-GLES31.functional.texture.texture_buffer.modify.mapbuffer_readwrite.range_size_65537

Reviewed-by: Dave Airlie <airlied@redhat.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/15827>
This commit is contained in:
Mike Blumenkrantz 2022-04-08 13:24:32 -04:00 • committed by Marge Bot
parent b3ee943050
commit ac8337041c
1 changed files with 8 additions and 1 deletions
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9
src/gallium/drivers/zink/zink_context.c
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@ -701,7 +701,14 @@ create_bvci(struct zink_context *ctx, struct zink_resource *res, enum pipe_forma
assert(bvci.format);
bvci.offset = offset;
bvci.range = !offset && range == res->base.b.width0 ? VK_WHOLE_SIZE : range;
uint32_t clamp = util_format_get_blocksize(format) * screen->info.props.limits.maxTexelBufferElements;
unsigned blocksize = util_format_get_blocksize(format);
if (bvci.range != VK_WHOLE_SIZE) {
/* clamp out partial texels */
bvci.range -= bvci.range % blocksize;
if (bvci.offset + bvci.range >= res->base.b.width0)
bvci.range = VK_WHOLE_SIZE;
}
uint32_t clamp = blocksize * screen->info.props.limits.maxTexelBufferElements;
if (bvci.range == VK_WHOLE_SIZE && res->base.b.width0 > clamp)
bvci.range = clamp;
bvci.flags = 0;