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mesa/st: create add_buffer_to_load_and_stores() helper

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Will be used to add LOAD support to UBOs.

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
This commit is contained in:
Timothy Arceri 2017-08-17 20:29:27 +10:00
parent 6fa60b5e40
commit ee0fbc8b71
1 changed files with 27 additions and 19 deletions
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46
src/mesa/state_tracker/st_glsl_to_tgsi.cpp
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@ -944,6 +944,32 @@ type_size(const struct glsl_type *type)
return type->count_attribute_slots(false);
}
static void
add_buffer_to_load_and_stores(glsl_to_tgsi_instruction *inst, st_src_reg *buf,
exec_list *instructions, ir_constant *access)
{
/**
* emit_asm() might have actually split the op into pieces, e.g. for
* double stores. We have to go back and fix up all the generated ops.
*/
unsigned op = inst->op;
do {
inst->resource = *buf;
if (access)
inst->buffer_access = access->value.u[0];
if (inst == instructions->get_head_raw())
break;
inst = (glsl_to_tgsi_instruction *)inst->get_prev();
if (inst->op == TGSI_OPCODE_UADD) {
if (inst == instructions->get_head_raw())
break;
inst = (glsl_to_tgsi_instruction *)inst->get_prev();
}
} while (inst->op == op && inst->resource.file == PROGRAM_UNDEFINED);
}
/**
* If the given GLSL type is an array or matrix or a structure containing
* an array/matrix member, return true. Else return false.
@ -3340,25 +3366,7 @@ glsl_to_tgsi_visitor::visit_ssbo_intrinsic(ir_call *ir)
assert(access);
}
/* The emit_asm() might have actually split the op into pieces, e.g. for
* double stores. We have to go back and fix up all the generated ops.
*/
unsigned op = inst->op;
do {
inst->resource = buffer;
if (access)
inst->buffer_access = access->value.u[0];
if (inst == this->instructions.get_head_raw())
break;
inst = (glsl_to_tgsi_instruction *)inst->get_prev();
if (inst->op == TGSI_OPCODE_UADD) {
if (inst == this->instructions.get_head_raw())
break;
inst = (glsl_to_tgsi_instruction *)inst->get_prev();
}
} while (inst->op == op && inst->resource.file == PROGRAM_UNDEFINED);
add_buffer_to_load_and_stores(inst, &buffer, &this->instructions, access);
}
void