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glsl: Extend ir_constant::zero to handle more types.

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Signed-off-by: Olivier Galibert <galibert@pobox.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Eric Anholt <eric@anholt.net> [v1]
This commit is contained in:
Olivier Galibert 2012-05-02 23:11:37 +02:00 • committed by Kenneth Graunke
parent f72e9b2041
commit 27a198388e
1 changed files with 16 additions and 1 deletions
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17
src/glsl/ir.cpp
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@ -716,12 +716,27 @@ ir_constant::ir_constant(const struct glsl_type *type, exec_list *value_list)
ir_constant *
ir_constant::zero(void *mem_ctx, const glsl_type *type)
{
assert(type->is_numeric() || type->is_boolean());
assert(type->is_scalar() || type->is_vector() || type->is_matrix()
|| type->is_record() || type->is_array());
ir_constant *c = new(mem_ctx) ir_constant;
c->type = type;
memset(&c->value, 0, sizeof(c->value));
if (type->is_array()) {
c->array_elements = ralloc_array(c, ir_constant *, type->length);
for (unsigned i = 0; i < type->length; i++)
c->array_elements[i] = ir_constant::zero(c, type->element_type());
}
if (type->is_record()) {
for (unsigned i = 0; i < type->length; i++) {
ir_constant *comp = ir_constant::zero(mem_ctx, type->fields.structure[i].type);
c->components.push_tail(comp);
}
}
return c;
}