glsl: Apply implicit conversions to structure constructor parameters.

The code for handling implicit conversions should probably get
refactored, but for now, this is easy.

Fixes piglit test constructor-26.vert.
This commit is contained in:
Kenneth Graunke 2010-09-01 20:03:17 -07:00
parent 43a6200f3c
commit f32d3df8ab
2 changed files with 10 additions and 3 deletions

View File

@ -30,6 +30,10 @@
static ir_rvalue *
convert_component(ir_rvalue *src, const glsl_type *desired_type);
bool
apply_implicit_conversion(const glsl_type *to, ir_rvalue * &from,
struct _mesa_glsl_parse_state *state);
static unsigned
process_parameters(exec_list *instructions, exec_list *actual_parameters,
exec_list *parameters,
@ -1185,7 +1189,7 @@ ast_function_expression::hir(exec_list *instructions,
if ((type != NULL) && type->is_record()) {
exec_node *node = actual_parameters.head;
for (unsigned i = 0; i < type->length; i++) {
ir_instruction *ir = (ir_instruction *) node;
ir_rvalue *ir = (ir_rvalue *) node;
if (node->is_tail_sentinel()) {
_mesa_glsl_error(&loc, state,
@ -1195,7 +1199,10 @@ ast_function_expression::hir(exec_list *instructions,
return ir_call::get_error_instruction(ctx);
}
if (ir->type != type->fields.structure[i].type) {
if (apply_implicit_conversion(type->fields.structure[i].type, ir,
state)) {
node->replace_with(ir);
} else {
_mesa_glsl_error(&loc, state,
"parameter type mismatch in constructor "
"for `%s.%s' (%s vs %s)",

View File

@ -97,7 +97,7 @@ _mesa_ast_to_hir(exec_list *instructions, struct _mesa_glsl_parse_state *state)
* If a conversion is possible (or unnecessary), \c true is returned.
* Otherwise \c false is returned.
*/
static bool
bool
apply_implicit_conversion(const glsl_type *to, ir_rvalue * &from,
struct _mesa_glsl_parse_state *state)
{