Mesa (master): zink: add spirv builder function for runtime array type

[GitLab Mirror]

Module: Mesa
Branch: master
Commit: 621fb6a72a3661263e57441e27930bf3da91f433
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=621fb6a72a3661263e57441e27930bf3da91f433

Author: Mike Blumenkrantz <michael.blumenkrantz at gmail.com>
Date:   Tue Aug  4 14:20:19 2020 -0400

zink: add spirv builder function for runtime array type

we'll need this for ssbos

Reviewed-by: Erik Faye-Lund <erik.faye-lund at collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/8330>

---

 src/gallium/drivers/zink/nir_to_spirv/spirv_builder.c | 11 +++++++++++
 src/gallium/drivers/zink/nir_to_spirv/spirv_builder.h |  3 +++
 2 files changed, 14 insertions(+)

diff --git a/src/gallium/drivers/zink/nir_to_spirv/spirv_builder.c b/src/gallium/drivers/zink/nir_to_spirv/spirv_builder.c
index a413c551d06..1254f4cd19b 100644
--- a/src/gallium/drivers/zink/nir_to_spirv/spirv_builder.c
+++ b/src/gallium/drivers/zink/nir_to_spirv/spirv_builder.c
@@ -1086,6 +1086,17 @@ spirv_builder_type_matrix(struct spirv_builder *b, SpvId component_type,
    return get_type_def(b, SpvOpTypeMatrix, args, ARRAY_SIZE(args));
 }
 
+SpvId
+spirv_builder_type_runtime_array(struct spirv_builder *b, SpvId component_type)
+{
+   SpvId type = spirv_builder_new_id(b);
+   spirv_buffer_prepare(&b->types_const_defs, b->mem_ctx, 3);
+   spirv_buffer_emit_word(&b->types_const_defs, SpvOpTypeRuntimeArray | (3 << 16));
+   spirv_buffer_emit_word(&b->types_const_defs, type);
+   spirv_buffer_emit_word(&b->types_const_defs, component_type);
+   return type;
+}
+
 SpvId
 spirv_builder_type_array(struct spirv_builder *b, SpvId component_type,
                          SpvId length)
diff --git a/src/gallium/drivers/zink/nir_to_spirv/spirv_builder.h b/src/gallium/drivers/zink/nir_to_spirv/spirv_builder.h
index 632f196733f..6f0281212a7 100644
--- a/src/gallium/drivers/zink/nir_to_spirv/spirv_builder.h
+++ b/src/gallium/drivers/zink/nir_to_spirv/spirv_builder.h
@@ -336,6 +336,9 @@ SpvId
 spirv_builder_type_matrix(struct spirv_builder *b, SpvId component_type,
                           unsigned component_count);
 
+SpvId
+spirv_builder_type_runtime_array(struct spirv_builder *b, SpvId component_type);
+
 SpvId
 spirv_builder_type_array(struct spirv_builder *b, SpvId component_type,
                          SpvId length);