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zink: add a function for creating descriptor layouts for push sets

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push sets contain a single ubo at index 0 per shader stage in the set

Reviewed-by: Hoe Hao Cheng <haochengho12907@gmail.com>
Acked-by: Dave Airlie <airlied@redhat.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/11188>
This commit is contained in:
Mike Blumenkrantz 2021-03-24 09:02:09 -04:00
parent daa2ccff7a
commit c4dd9cdabb
2 changed files with 20 additions and 0 deletions
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18
src/gallium/drivers/zink/zink_descriptors.c
View file

@ -378,6 +378,24 @@ zink_descriptor_util_layout_get(struct zink_context *ctx, enum zink_descriptor_t
return dsl;
}
bool
zink_descriptor_util_push_layouts_get(struct zink_context *ctx, VkDescriptorSetLayout *dsls, struct zink_descriptor_layout_key **layout_keys)
{
VkDescriptorSetLayoutBinding bindings[PIPE_SHADER_TYPES];
for (unsigned i = 0; i < PIPE_SHADER_TYPES; i++) {
bindings[i].binding = tgsi_processor_to_shader_stage(i);
bindings[i].descriptorType = VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER;
bindings[i].descriptorCount = 1;
bindings[i].stageFlags = zink_shader_stage(i);
bindings[i].pImmutableSamplers = NULL;
}
struct zink_screen *screen = zink_screen(ctx->base.screen);
enum zink_descriptor_type dsl_type = screen->lazy_descriptors ? ZINK_DESCRIPTOR_TYPES : ZINK_DESCRIPTOR_TYPE_UBO;
dsls[0] = zink_descriptor_util_layout_get(ctx, dsl_type, bindings, ZINK_SHADER_COUNT, &layout_keys[0]);
dsls[1] = zink_descriptor_util_layout_get(ctx, dsl_type, &bindings[PIPE_SHADER_COMPUTE], 1, &layout_keys[1]);
return dsls[0] && dsls[1];
}
static uint32_t
hash_descriptor_pool(const void *key)
{

2
src/gallium/drivers/zink/zink_descriptors.h
View file

@ -106,6 +106,8 @@ VkDescriptorSetLayout
zink_descriptor_util_layout_get(struct zink_context *ctx, enum zink_descriptor_type type,
VkDescriptorSetLayoutBinding *bindings, unsigned num_bindings,
struct zink_descriptor_layout_key **layout_key);
bool
zink_descriptor_util_push_layouts_get(struct zink_context *ctx, VkDescriptorSetLayout *dsls, struct zink_descriptor_layout_key **layout_keys);
struct zink_resource *
zink_get_resource_for_descriptor(struct zink_context *ctx, enum zink_descriptor_type type, enum pipe_shader_type shader, int idx);