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glsl: mark variables produced by lower_named_interface_blocks.

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These variables will need to be treated specially by
program_resource_visitor, so that they can be addressed through the
API using their interface block name (and array index, for interface
block arrays).

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>
This commit is contained in:
Paul Berry 2013-10-21 20:27:23 -07:00
parent 99512dc40d
commit 4b97c581b4
2 changed files with 20 additions and 0 deletions
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18
src/glsl/ir.h
View file

@ -580,6 +580,24 @@ public:
*/
unsigned location_frac:2;
/**
* Non-zero if this variable was created by lowering a named interface
* block which was not an array.
*
* Note that this variable and \c from_named_ifc_block_array will never
* both be non-zero.
*/
unsigned from_named_ifc_block_nonarray:1;
/**
* Non-zero if this variable was created by lowering a named interface
* block which was an array.
*
* Note that this variable and \c from_named_ifc_block_nonarray will never
* both be non-zero.
*/
unsigned from_named_ifc_block_array:1;
/**
* \brief Layout qualifier for gl_FragDepth.
*

2
src/glsl/lower_named_interface_blocks.cpp
View file

@ -140,6 +140,7 @@ flatten_named_interface_blocks_declarations::run(exec_list *instructions)
new(mem_ctx) ir_variable(iface_t->fields.structure[i].type,
var_name,
(ir_variable_mode) var->mode);
new_var->from_named_ifc_block_nonarray = 1;
} else {
const glsl_type *new_array_type =
glsl_type::get_array_instance(
@ -149,6 +150,7 @@ flatten_named_interface_blocks_declarations::run(exec_list *instructions)
new(mem_ctx) ir_variable(new_array_type,
var_name,
(ir_variable_mode) var->mode);
new_var->from_named_ifc_block_array = 1;
}
new_var->location = iface_t->fields.structure[i].location;
new_var->explicit_location = (new_var->location >= 0);