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glsl/ir: allow ir_call to handle subroutine calling 

This adds a ir_variable which contains the subroutine uniform
and an array rvalue for the deref of that uniform, these
are stored in the ir_call and lowered later.

Reviewed-by: Chris Forbes <chrisf@ijw.co.nz>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Dave Airlie 2015-04-24 10:47:03 +10:00
parent 30681c3bb8
commit 884df9ef83
1 changed files with 20 additions and 1 deletions
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21
src/glsl/ir.h
View File

@ -1712,7 +1712,18 @@ public:
ir_call(ir_function_signature *callee,
ir_dereference_variable *return_deref,
exec_list *actual_parameters)
: ir_instruction(ir_type_call), return_deref(return_deref), callee(callee)
: ir_instruction(ir_type_call), return_deref(return_deref), callee(callee), sub_var(NULL), array_idx(NULL)
{
assert(callee->return_type != NULL);
actual_parameters->move_nodes_to(& this->actual_parameters);
this->use_builtin = callee->is_builtin();
}
ir_call(ir_function_signature *callee,
ir_dereference_variable *return_deref,
exec_list *actual_parameters,
ir_variable *var, ir_rvalue *array_idx)
: ir_instruction(ir_type_call), return_deref(return_deref), callee(callee), sub_var(var), array_idx(array_idx)
{
assert(callee->return_type != NULL);
actual_parameters->move_nodes_to(& this->actual_parameters);
@ -1760,6 +1771,14 @@ public:
/** Should this call only bind to a built-in function? */
bool use_builtin;
/*
* ARB_shader_subroutine support -
* the subroutine uniform variable and array index
* rvalue to be used in the lowering pass later.
*/
ir_variable *sub_var;
ir_rvalue *array_idx;
};