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zink: handle null ubos

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for drivers that don't support robustness features (nullDescriptor)
we can just jam in the dummy buffer here and yolo

Reviewed-by: Erik Faye-Lund <erik.faye-lund@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/8226>
This commit is contained in:
Mike Blumenkrantz 2020-10-15 11:20:20 -04:00 • committed by Marge Bot
parent b0e8fb53ba
commit 009e2aa546
1 changed files with 8 additions and 5 deletions
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13
src/gallium/drivers/zink/zink_draw.c
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@ -314,14 +314,17 @@ zink_draw_vbo(struct pipe_context *pctx,
for (int j = 0; j < shader->num_bindings; j++) {
int index = shader->bindings[j].index;
if (shader->bindings[j].type == VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER) {
assert(ctx->ubos[i][index].buffer_size > 0);
assert(ctx->ubos[i][index].buffer_size <= screen->info.props.limits.maxUniformBufferRange);
assert(ctx->ubos[i][index].buffer);
struct zink_resource *res = zink_resource(ctx->ubos[i][index].buffer);
assert(!res || ctx->ubos[i][index].buffer_size > 0);
assert(!res || ctx->ubos[i][index].buffer);
write_desc_resources[num_wds] = res;
buffer_infos[num_buffer_info].buffer = res->buffer;
buffer_infos[num_buffer_info].offset = ctx->ubos[i][index].buffer_offset;
buffer_infos[num_buffer_info].range = ctx->ubos[i][index].buffer_size;
buffer_infos[num_buffer_info].buffer = res ? res->buffer :
(screen->info.rb2_feats.nullDescriptor ?
VK_NULL_HANDLE :
zink_resource(ctx->dummy_buffer)->buffer);
buffer_infos[num_buffer_info].offset = res ? ctx->ubos[i][index].buffer_offset : 0;
buffer_infos[num_buffer_info].range = res ? ctx->ubos[i][index].buffer_size : VK_WHOLE_SIZE;
wds[num_wds].pBufferInfo = buffer_infos + num_buffer_info;
++num_buffer_info;
} else {