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zink: add some spirv builder functions for spec constants

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we'll be using these soon

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/9242>
This commit is contained in:
Mike Blumenkrantz 2020-10-15 14:37:49 -04:00 • committed by Marge Bot
parent 5d503bf783
commit 10c05f083f
2 changed files with 44 additions and 0 deletions
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33
src/gallium/drivers/zink/nir_to_spirv/spirv_builder.c
View file

@ -214,6 +214,13 @@ spirv_builder_emit_decoration(struct spirv_builder *b, SpvId target,
emit_decoration(b, target, decoration, NULL, 0);
}
void
spirv_builder_emit_specid(struct spirv_builder *b, SpvId target, uint32_t id)
{
uint32_t args[] = { id };
emit_decoration(b, target, SpvDecorationSpecId, args, ARRAY_SIZE(args));
}
void
spirv_builder_emit_location(struct spirv_builder *b, SpvId target,
uint32_t location)
@ -1406,6 +1413,13 @@ spirv_builder_const_uint(struct spirv_builder *b, int width, uint64_t val)
return emit_constant_64(b, type, val);
}
SpvId
spirv_builder_spec_const_uint(struct spirv_builder *b, int width)
{
assert(width <= 32);
return spirv_builder_emit_unop(b, SpvOpSpecConstant, spirv_builder_type_uint(b, width), UINT_MAX);
}
SpvId
spirv_builder_const_float(struct spirv_builder *b, int width, double val)
{
@ -1427,6 +1441,25 @@ spirv_builder_const_composite(struct spirv_builder *b, SpvId result_type,
num_constituents);
}
SpvId
spirv_builder_spec_const_composite(struct spirv_builder *b, SpvId result_type,
const SpvId constituents[],
size_t num_constituents)
{
SpvId result = spirv_builder_new_id(b);
assert(num_constituents > 0);
int words = 3 + num_constituents;
spirv_buffer_prepare(&b->instructions, b->mem_ctx, words);
spirv_buffer_emit_word(&b->instructions,
SpvOpSpecConstantComposite | (words << 16));
spirv_buffer_emit_word(&b->instructions, result_type);
spirv_buffer_emit_word(&b->instructions, result);
for (int i = 0; i < num_constituents; ++i)
spirv_buffer_emit_word(&b->instructions, constituents[i]);
return result;
}
SpvId
spirv_builder_emit_var(struct spirv_builder *b, SpvId type,
SpvStorageClass storage_class)

11
src/gallium/drivers/zink/nir_to_spirv/spirv_builder.h
View file

@ -89,6 +89,9 @@ void
spirv_builder_emit_decoration(struct spirv_builder *b, SpvId target,
SpvDecoration decoration);
void
spirv_builder_emit_specid(struct spirv_builder *b, SpvId target, uint32_t id);
void
spirv_builder_emit_location(struct spirv_builder *b, SpvId target,
uint32_t location);
@ -400,6 +403,9 @@ spirv_builder_const_int(struct spirv_builder *b, int width, int64_t val);
SpvId
spirv_builder_const_uint(struct spirv_builder *b, int width, uint64_t val);
SpvId
spirv_builder_spec_const_uint(struct spirv_builder *b, int width);
SpvId
spirv_builder_const_float(struct spirv_builder *b, int width, double val);
@ -408,6 +414,11 @@ spirv_builder_const_composite(struct spirv_builder *b, SpvId result_type,
const SpvId constituents[],
size_t num_constituents);
SpvId
spirv_builder_spec_const_composite(struct spirv_builder *b, SpvId result_type,
const SpvId constituents[],
size_t num_constituents);
SpvId
spirv_builder_emit_var(struct spirv_builder *b, SpvId type,
SpvStorageClass storage_class);