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glsl: fix cross validation for explicit locations on structs and arrays

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Reviewed-by: Anuj Phogat <anuj.phogat@gmail.com>
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
This commit is contained in:
Timothy Arceri
2015-12-24 10:33:45 +11:00
parent 39e9cf6cb1
commit 72b5d00c9c
1 changed files with 30 additions and 13 deletions
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43
src/compiler/glsl/link_varyings.cpp
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@@ -367,18 +367,24 @@ cross_validate_outputs_to_inputs(struct gl_shader_program *prog,
/* User-defined varyings with explicit locations are handled
* differently because they do not need to have matching names.
*/
const unsigned idx = var->data.location - VARYING_SLOT_VAR0;
const glsl_type *type = get_varying_type(var, producer->Stage);
unsigned num_elements = type->count_attribute_slots(false);
unsigned idx = var->data.location - VARYING_SLOT_VAR0;
unsigned slot_limit = idx + num_elements;
if (explicit_locations[idx] != NULL) {
linker_error(prog,
while (idx < slot_limit) {
if (explicit_locations[idx] != NULL) {
linker_error(prog,
"%s shader has multiple outputs explicitly "
"assigned to location %d\n",
_mesa_shader_stage_to_string(producer->Stage),
idx);
return;
}
return;
}
explicit_locations[idx] = var;
explicit_locations[idx] = var;
idx++;
}
}
}
@@ -426,14 +432,25 @@ cross_validate_outputs_to_inputs(struct gl_shader_program *prog,
ir_variable *output = NULL;
if (input->data.explicit_location
&& input->data.location >= VARYING_SLOT_VAR0) {
output = explicit_locations[input->data.location - VARYING_SLOT_VAR0];
if (output == NULL) {
linker_error(prog,
"%s shader input `%s' with explicit location "
"has no matching output\n",
_mesa_shader_stage_to_string(consumer->Stage),
input->name);
const glsl_type *type = get_varying_type(input, consumer->Stage);
unsigned num_elements = type->count_attribute_slots(false);
unsigned idx = input->data.location - VARYING_SLOT_VAR0;
unsigned slot_limit = idx + num_elements;
while (idx < slot_limit) {
output = explicit_locations[idx];
if (output == NULL ||
input->data.location != output->data.location) {
linker_error(prog,
"%s shader input `%s' with explicit location "
"has no matching output\n",
_mesa_shader_stage_to_string(consumer->Stage),
input->name);
break;
}
idx++;
}
} else {
output = parameters.get_variable(input->name);