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glsl linker: support arrays of interface block instances

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With this change we now support interface block arrays.
For example, cases like this:

out block_name {
    float f;
} block_instance[2];

This allows Mesa to pass the piglit glsl-1.50 test:
* execution/interface-blocks-complex-vs-fs.shader_test

Signed-off-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
This commit is contained in:
Jordan Justen
2013-03-17 02:04:56 -07:00
parent c30ca431ba
commit d6863acb9f
1 changed files with 50 additions and 11 deletions
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61
src/glsl/lower_named_interface_blocks.cpp
View File

@@ -106,22 +106,51 @@ flatten_named_interface_blocks_declarations::run(exec_list *instructions)
if (var->mode == ir_var_uniform)
continue;
const glsl_type *const t = var->type;
const glsl_type * iface_t = var->type;
const glsl_type * array_t = NULL;
exec_node *insert_pos = var;
char *iface_field_name;
for (unsigned i = 0; i < t->length; i++) {
iface_field_name = ralloc_asprintf(mem_ctx, "%s.%s", t->name,
t->fields.structure[i].name);
if (iface_t->is_array()) {
array_t = iface_t;
iface_t = array_t->fields.array;
}
assert (iface_t->is_interface());
for (unsigned i = 0; i < iface_t->length; i++) {
const char * field_name = iface_t->fields.structure[i].name;
char *iface_field_name =
ralloc_asprintf(mem_ctx, "%s.%s",
iface_t->name, field_name);
ir_variable *found_var =
(ir_variable *) hash_table_find(interface_namespace,
iface_field_name);
if (!found_var) {
ir_variable *new_var =
new(mem_ctx) ir_variable(t->fields.structure[i].type,
ralloc_strdup(mem_ctx, t->fields.structure[i].name),
(ir_variable_mode) var->mode);
new_var->interface_type = t;
ir_variable *new_var;
if (array_t == NULL) {
char *var_name =
ralloc_strdup(mem_ctx, iface_t->fields.structure[i].name);
new_var =
new(mem_ctx) ir_variable(iface_t->fields.structure[i].type,
var_name,
(ir_variable_mode) var->mode);
} else {
const glsl_type *new_array_type =
glsl_type::get_array_instance(
iface_t->fields.structure[i].type,
array_t->length);
char *var_name =
ralloc_asprintf(mem_ctx, "%s[%d]",
iface_t->fields.structure[i].name,
array_t->length);
new_var =
new(mem_ctx) ir_variable(new_array_type,
var_name,
(ir_variable_mode) var->mode);
}
new_var->interface_type = iface_t;
hash_table_insert(interface_namespace, new_var,
iface_field_name);
insert_pos->insert_after(new_var);
@@ -184,9 +213,19 @@ flatten_named_interface_blocks_declarations::handle_rvalue(ir_rvalue **rvalue)
(ir_variable *) hash_table_find(interface_namespace,
iface_field_name);
assert(found_var);
ir_dereference_variable *deref_var =
new(mem_ctx) ir_dereference_variable(found_var);
*rvalue = deref_var;
ir_dereference_array *deref_array =
ir->record->as_dereference_array();
if (deref_array != NULL) {
*rvalue =
new(mem_ctx) ir_dereference_array(deref_var,
deref_array->array_index);
} else {
*rvalue = deref_var;
}
}
}