2 * Copyright © 2010 Intel Corporation
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
21 * DEALINGS IN THE SOFTWARE.
25 #include "compiler/glsl_types.h"
26 #include "glsl_parser_extras.h"
29 ir_rvalue::ir_rvalue(enum ir_node_type t
)
32 this->type
= glsl_type::error_type
;
35 bool ir_rvalue::is_zero() const
40 bool ir_rvalue::is_one() const
45 bool ir_rvalue::is_negative_one() const
51 * Modify the swizzle make to move one component to another
53 * \param m IR swizzle to be modified
54 * \param from Component in the RHS that is to be swizzled
55 * \param to Desired swizzle location of \c from
58 update_rhs_swizzle(ir_swizzle_mask
&m
, unsigned from
, unsigned to
)
61 case 0: m
.x
= from
; break;
62 case 1: m
.y
= from
; break;
63 case 2: m
.z
= from
; break;
64 case 3: m
.w
= from
; break;
65 default: assert(!"Should not get here.");
70 ir_assignment::set_lhs(ir_rvalue
*lhs
)
73 bool swizzled
= false;
76 ir_swizzle
*swiz
= lhs
->as_swizzle();
81 unsigned write_mask
= 0;
82 ir_swizzle_mask rhs_swiz
= { 0, 0, 0, 0, 0, 0 };
84 for (unsigned i
= 0; i
< swiz
->mask
.num_components
; i
++) {
88 case 0: c
= swiz
->mask
.x
; break;
89 case 1: c
= swiz
->mask
.y
; break;
90 case 2: c
= swiz
->mask
.z
; break;
91 case 3: c
= swiz
->mask
.w
; break;
92 default: assert(!"Should not get here.");
95 write_mask
|= (((this->write_mask
>> i
) & 1) << c
);
96 update_rhs_swizzle(rhs_swiz
, i
, c
);
97 rhs_swiz
.num_components
= swiz
->val
->type
->vector_elements
;
100 this->write_mask
= write_mask
;
103 this->rhs
= new(mem_ctx
) ir_swizzle(this->rhs
, rhs_swiz
);
108 /* Now, RHS channels line up with the LHS writemask. Collapse it
109 * to just the channels that will be written.
111 ir_swizzle_mask rhs_swiz
= { 0, 0, 0, 0, 0, 0 };
113 for (int i
= 0; i
< 4; i
++) {
114 if (write_mask
& (1 << i
))
115 update_rhs_swizzle(rhs_swiz
, i
, rhs_chan
++);
117 rhs_swiz
.num_components
= rhs_chan
;
118 this->rhs
= new(mem_ctx
) ir_swizzle(this->rhs
, rhs_swiz
);
121 assert((lhs
== NULL
) || lhs
->as_dereference());
123 this->lhs
= (ir_dereference
*) lhs
;
127 ir_assignment::whole_variable_written()
129 ir_variable
*v
= this->lhs
->whole_variable_referenced();
134 if (v
->type
->is_scalar())
137 if (v
->type
->is_vector()) {
138 const unsigned mask
= (1U << v
->type
->vector_elements
) - 1;
140 if (mask
!= this->write_mask
)
144 /* Either all the vector components are assigned or the variable is some
145 * composite type (and the whole thing is assigned.
150 ir_assignment::ir_assignment(ir_dereference
*lhs
, ir_rvalue
*rhs
,
151 ir_rvalue
*condition
, unsigned write_mask
)
152 : ir_instruction(ir_type_assignment
)
154 this->condition
= condition
;
157 this->write_mask
= write_mask
;
159 if (lhs
->type
->is_scalar() || lhs
->type
->is_vector()) {
160 int lhs_components
= 0;
161 for (int i
= 0; i
< 4; i
++) {
162 if (write_mask
& (1 << i
))
166 assert(lhs_components
== this->rhs
->type
->vector_elements
);
170 ir_assignment::ir_assignment(ir_rvalue
*lhs
, ir_rvalue
*rhs
,
171 ir_rvalue
*condition
)
172 : ir_instruction(ir_type_assignment
)
174 this->condition
= condition
;
177 /* If the RHS is a vector type, assume that all components of the vector
178 * type are being written to the LHS. The write mask comes from the RHS
179 * because we can have a case where the LHS is a vec4 and the RHS is a
180 * vec3. In that case, the assignment is:
182 * (assign (...) (xyz) (var_ref lhs) (var_ref rhs))
184 if (rhs
->type
->is_vector())
185 this->write_mask
= (1U << rhs
->type
->vector_elements
) - 1;
186 else if (rhs
->type
->is_scalar())
187 this->write_mask
= 1;
189 this->write_mask
= 0;
194 ir_expression::ir_expression(int op
, const struct glsl_type
*type
,
195 ir_rvalue
*op0
, ir_rvalue
*op1
,
196 ir_rvalue
*op2
, ir_rvalue
*op3
)
197 : ir_rvalue(ir_type_expression
)
200 this->operation
= ir_expression_operation(op
);
201 this->operands
[0] = op0
;
202 this->operands
[1] = op1
;
203 this->operands
[2] = op2
;
204 this->operands
[3] = op3
;
208 for (unsigned i
= num_operands
; i
< 4; i
++) {
209 assert(this->operands
[i
] == NULL
);
212 for (unsigned i
= 0; i
< num_operands
; i
++) {
213 assert(this->operands
[i
] != NULL
);
218 ir_expression::ir_expression(int op
, ir_rvalue
*op0
)
219 : ir_rvalue(ir_type_expression
)
221 this->operation
= ir_expression_operation(op
);
222 this->operands
[0] = op0
;
223 this->operands
[1] = NULL
;
224 this->operands
[2] = NULL
;
225 this->operands
[3] = NULL
;
227 assert(op
<= ir_last_unop
);
229 assert(num_operands
== 1);
230 assert(this->operands
[0]);
232 switch (this->operation
) {
233 case ir_unop_bit_not
:
234 case ir_unop_logic_not
:
249 case ir_unop_round_even
:
253 case ir_unop_dFdx_coarse
:
254 case ir_unop_dFdx_fine
:
256 case ir_unop_dFdy_coarse
:
257 case ir_unop_dFdy_fine
:
258 case ir_unop_bitfield_reverse
:
259 case ir_unop_interpolate_at_centroid
:
260 case ir_unop_saturate
:
261 this->type
= op0
->type
;
268 case ir_unop_bitcast_f2i
:
269 case ir_unop_bit_count
:
270 case ir_unop_find_msb
:
271 case ir_unop_find_lsb
:
272 case ir_unop_subroutine_to_int
:
275 this->type
= glsl_type::get_instance(GLSL_TYPE_INT
,
276 op0
->type
->vector_elements
, 1);
283 case ir_unop_bitcast_i2f
:
284 case ir_unop_bitcast_u2f
:
287 this->type
= glsl_type::get_instance(GLSL_TYPE_FLOAT
,
288 op0
->type
->vector_elements
, 1);
295 this->type
= glsl_type::get_instance(GLSL_TYPE_BOOL
,
296 op0
->type
->vector_elements
, 1);
304 this->type
= glsl_type::get_instance(GLSL_TYPE_DOUBLE
,
305 op0
->type
->vector_elements
, 1);
311 case ir_unop_bitcast_f2u
:
314 this->type
= glsl_type::get_instance(GLSL_TYPE_UINT
,
315 op0
->type
->vector_elements
, 1);
323 case ir_unop_u642i64
:
324 this->type
= glsl_type::get_instance(GLSL_TYPE_INT64
,
325 op0
->type
->vector_elements
, 1);
332 case ir_unop_i642u64
:
333 this->type
= glsl_type::get_instance(GLSL_TYPE_UINT64
,
334 op0
->type
->vector_elements
, 1);
337 this->type
= glsl_type::float_type
;
340 case ir_unop_unpack_double_2x32
:
341 case ir_unop_unpack_uint_2x32
:
342 this->type
= glsl_type::uvec2_type
;
345 case ir_unop_unpack_int_2x32
:
346 this->type
= glsl_type::ivec2_type
;
349 case ir_unop_pack_snorm_2x16
:
350 case ir_unop_pack_snorm_4x8
:
351 case ir_unop_pack_unorm_2x16
:
352 case ir_unop_pack_unorm_4x8
:
353 case ir_unop_pack_half_2x16
:
354 this->type
= glsl_type::uint_type
;
357 case ir_unop_pack_double_2x32
:
358 this->type
= glsl_type::double_type
;
361 case ir_unop_pack_int_2x32
:
362 this->type
= glsl_type::int64_t_type
;
365 case ir_unop_pack_uint_2x32
:
366 this->type
= glsl_type::uint64_t_type
;
369 case ir_unop_unpack_snorm_2x16
:
370 case ir_unop_unpack_unorm_2x16
:
371 case ir_unop_unpack_half_2x16
:
372 this->type
= glsl_type::vec2_type
;
375 case ir_unop_unpack_snorm_4x8
:
376 case ir_unop_unpack_unorm_4x8
:
377 this->type
= glsl_type::vec4_type
;
380 case ir_unop_unpack_sampler_2x32
:
381 case ir_unop_unpack_image_2x32
:
382 this->type
= glsl_type::uvec2_type
;
385 case ir_unop_pack_sampler_2x32
:
386 case ir_unop_pack_image_2x32
:
387 this->type
= op0
->type
;
390 case ir_unop_frexp_sig
:
391 this->type
= op0
->type
;
393 case ir_unop_frexp_exp
:
394 this->type
= glsl_type::get_instance(GLSL_TYPE_INT
,
395 op0
->type
->vector_elements
, 1);
398 case ir_unop_get_buffer_size
:
399 case ir_unop_ssbo_unsized_array_length
:
400 this->type
= glsl_type::int_type
;
403 case ir_unop_bitcast_i642d
:
404 case ir_unop_bitcast_u642d
:
405 this->type
= glsl_type::get_instance(GLSL_TYPE_DOUBLE
,
406 op0
->type
->vector_elements
, 1);
409 case ir_unop_bitcast_d2i64
:
410 this->type
= glsl_type::get_instance(GLSL_TYPE_INT64
,
411 op0
->type
->vector_elements
, 1);
413 case ir_unop_bitcast_d2u64
:
414 this->type
= glsl_type::get_instance(GLSL_TYPE_UINT64
,
415 op0
->type
->vector_elements
, 1);
419 assert(!"not reached: missing automatic type setup for ir_expression");
420 this->type
= op0
->type
;
425 ir_expression::ir_expression(int op
, ir_rvalue
*op0
, ir_rvalue
*op1
)
426 : ir_rvalue(ir_type_expression
)
428 this->operation
= ir_expression_operation(op
);
429 this->operands
[0] = op0
;
430 this->operands
[1] = op1
;
431 this->operands
[2] = NULL
;
432 this->operands
[3] = NULL
;
434 assert(op
> ir_last_unop
);
436 assert(num_operands
== 2);
437 for (unsigned i
= 0; i
< num_operands
; i
++) {
438 assert(this->operands
[i
] != NULL
);
441 switch (this->operation
) {
442 case ir_binop_all_equal
:
443 case ir_binop_any_nequal
:
444 this->type
= glsl_type::bool_type
;
455 if (op0
->type
->is_scalar()) {
456 this->type
= op1
->type
;
457 } else if (op1
->type
->is_scalar()) {
458 this->type
= op0
->type
;
460 if (this->operation
== ir_binop_mul
) {
461 this->type
= glsl_type::get_mul_type(op0
->type
, op1
->type
);
463 assert(op0
->type
== op1
->type
);
464 this->type
= op0
->type
;
469 case ir_binop_logic_and
:
470 case ir_binop_logic_xor
:
471 case ir_binop_logic_or
:
472 case ir_binop_bit_and
:
473 case ir_binop_bit_xor
:
474 case ir_binop_bit_or
:
475 assert(!op0
->type
->is_matrix());
476 assert(!op1
->type
->is_matrix());
477 if (op0
->type
->is_scalar()) {
478 this->type
= op1
->type
;
479 } else if (op1
->type
->is_scalar()) {
480 this->type
= op0
->type
;
482 assert(op0
->type
->vector_elements
== op1
->type
->vector_elements
);
483 this->type
= op0
->type
;
488 case ir_binop_nequal
:
489 case ir_binop_gequal
:
491 assert(op0
->type
== op1
->type
);
492 this->type
= glsl_type::get_instance(GLSL_TYPE_BOOL
,
493 op0
->type
->vector_elements
, 1);
497 this->type
= op0
->type
->get_base_type();
500 case ir_binop_imul_high
:
502 case ir_binop_borrow
:
503 case ir_binop_lshift
:
504 case ir_binop_rshift
:
506 case ir_binop_interpolate_at_offset
:
507 case ir_binop_interpolate_at_sample
:
508 this->type
= op0
->type
;
511 case ir_binop_vector_extract
:
512 this->type
= op0
->type
->get_scalar_type();
516 assert(!"not reached: missing automatic type setup for ir_expression");
517 this->type
= glsl_type::float_type
;
521 ir_expression::ir_expression(int op
, ir_rvalue
*op0
, ir_rvalue
*op1
,
523 : ir_rvalue(ir_type_expression
)
525 this->operation
= ir_expression_operation(op
);
526 this->operands
[0] = op0
;
527 this->operands
[1] = op1
;
528 this->operands
[2] = op2
;
529 this->operands
[3] = NULL
;
531 assert(op
> ir_last_binop
&& op
<= ir_last_triop
);
533 assert(num_operands
== 3);
534 for (unsigned i
= 0; i
< num_operands
; i
++) {
535 assert(this->operands
[i
] != NULL
);
538 switch (this->operation
) {
541 case ir_triop_bitfield_extract
:
542 case ir_triop_vector_insert
:
543 this->type
= op0
->type
;
547 this->type
= op1
->type
;
551 assert(!"not reached: missing automatic type setup for ir_expression");
552 this->type
= glsl_type::float_type
;
557 * This is only here for ir_reader to used for testing purposes. Please use
558 * the precomputed num_operands field if you need the number of operands.
561 ir_expression::get_num_operands(ir_expression_operation op
)
563 assert(op
<= ir_last_opcode
);
565 if (op
<= ir_last_unop
)
568 if (op
<= ir_last_binop
)
571 if (op
<= ir_last_triop
)
574 if (op
<= ir_last_quadop
)
577 unreachable("Could not calculate number of operands");
580 #include "ir_expression_operation_strings.h"
583 depth_layout_string(ir_depth_layout layout
)
586 case ir_depth_layout_none
: return "";
587 case ir_depth_layout_any
: return "depth_any";
588 case ir_depth_layout_greater
: return "depth_greater";
589 case ir_depth_layout_less
: return "depth_less";
590 case ir_depth_layout_unchanged
: return "depth_unchanged";
598 ir_expression_operation
599 ir_expression::get_operator(const char *str
)
601 for (int op
= 0; op
<= int(ir_last_opcode
); op
++) {
602 if (strcmp(str
, ir_expression_operation_strings
[op
]) == 0)
603 return (ir_expression_operation
) op
;
605 return (ir_expression_operation
) -1;
609 ir_expression::variable_referenced() const
612 case ir_binop_vector_extract
:
613 case ir_triop_vector_insert
:
614 /* We get these for things like a[0] where a is a vector type. In these
615 * cases we want variable_referenced() to return the actual vector
616 * variable this is wrapping.
618 return operands
[0]->variable_referenced();
620 return ir_rvalue::variable_referenced();
624 ir_constant::ir_constant()
625 : ir_rvalue(ir_type_constant
)
627 this->const_elements
= NULL
;
630 ir_constant::ir_constant(const struct glsl_type
*type
,
631 const ir_constant_data
*data
)
632 : ir_rvalue(ir_type_constant
)
634 this->const_elements
= NULL
;
636 assert((type
->base_type
>= GLSL_TYPE_UINT
)
637 && (type
->base_type
<= GLSL_TYPE_IMAGE
));
640 memcpy(& this->value
, data
, sizeof(this->value
));
643 ir_constant::ir_constant(float f
, unsigned vector_elements
)
644 : ir_rvalue(ir_type_constant
)
646 assert(vector_elements
<= 4);
647 this->type
= glsl_type::get_instance(GLSL_TYPE_FLOAT
, vector_elements
, 1);
648 for (unsigned i
= 0; i
< vector_elements
; i
++) {
649 this->value
.f
[i
] = f
;
651 for (unsigned i
= vector_elements
; i
< 16; i
++) {
652 this->value
.f
[i
] = 0;
656 ir_constant::ir_constant(double d
, unsigned vector_elements
)
657 : ir_rvalue(ir_type_constant
)
659 assert(vector_elements
<= 4);
660 this->type
= glsl_type::get_instance(GLSL_TYPE_DOUBLE
, vector_elements
, 1);
661 for (unsigned i
= 0; i
< vector_elements
; i
++) {
662 this->value
.d
[i
] = d
;
664 for (unsigned i
= vector_elements
; i
< 16; i
++) {
665 this->value
.d
[i
] = 0.0;
669 ir_constant::ir_constant(unsigned int u
, unsigned vector_elements
)
670 : ir_rvalue(ir_type_constant
)
672 assert(vector_elements
<= 4);
673 this->type
= glsl_type::get_instance(GLSL_TYPE_UINT
, vector_elements
, 1);
674 for (unsigned i
= 0; i
< vector_elements
; i
++) {
675 this->value
.u
[i
] = u
;
677 for (unsigned i
= vector_elements
; i
< 16; i
++) {
678 this->value
.u
[i
] = 0;
682 ir_constant::ir_constant(int integer
, unsigned vector_elements
)
683 : ir_rvalue(ir_type_constant
)
685 assert(vector_elements
<= 4);
686 this->type
= glsl_type::get_instance(GLSL_TYPE_INT
, vector_elements
, 1);
687 for (unsigned i
= 0; i
< vector_elements
; i
++) {
688 this->value
.i
[i
] = integer
;
690 for (unsigned i
= vector_elements
; i
< 16; i
++) {
691 this->value
.i
[i
] = 0;
695 ir_constant::ir_constant(uint64_t u64
, unsigned vector_elements
)
696 : ir_rvalue(ir_type_constant
)
698 assert(vector_elements
<= 4);
699 this->type
= glsl_type::get_instance(GLSL_TYPE_UINT64
, vector_elements
, 1);
700 for (unsigned i
= 0; i
< vector_elements
; i
++) {
701 this->value
.u64
[i
] = u64
;
703 for (unsigned i
= vector_elements
; i
< 16; i
++) {
704 this->value
.u64
[i
] = 0;
708 ir_constant::ir_constant(int64_t int64
, unsigned vector_elements
)
709 : ir_rvalue(ir_type_constant
)
711 assert(vector_elements
<= 4);
712 this->type
= glsl_type::get_instance(GLSL_TYPE_INT64
, vector_elements
, 1);
713 for (unsigned i
= 0; i
< vector_elements
; i
++) {
714 this->value
.i64
[i
] = int64
;
716 for (unsigned i
= vector_elements
; i
< 16; i
++) {
717 this->value
.i64
[i
] = 0;
721 ir_constant::ir_constant(bool b
, unsigned vector_elements
)
722 : ir_rvalue(ir_type_constant
)
724 assert(vector_elements
<= 4);
725 this->type
= glsl_type::get_instance(GLSL_TYPE_BOOL
, vector_elements
, 1);
726 for (unsigned i
= 0; i
< vector_elements
; i
++) {
727 this->value
.b
[i
] = b
;
729 for (unsigned i
= vector_elements
; i
< 16; i
++) {
730 this->value
.b
[i
] = false;
734 ir_constant::ir_constant(const ir_constant
*c
, unsigned i
)
735 : ir_rvalue(ir_type_constant
)
737 this->const_elements
= NULL
;
738 this->type
= c
->type
->get_base_type();
740 switch (this->type
->base_type
) {
741 case GLSL_TYPE_UINT
: this->value
.u
[0] = c
->value
.u
[i
]; break;
742 case GLSL_TYPE_INT
: this->value
.i
[0] = c
->value
.i
[i
]; break;
743 case GLSL_TYPE_FLOAT
: this->value
.f
[0] = c
->value
.f
[i
]; break;
744 case GLSL_TYPE_BOOL
: this->value
.b
[0] = c
->value
.b
[i
]; break;
745 case GLSL_TYPE_DOUBLE
: this->value
.d
[0] = c
->value
.d
[i
]; break;
746 default: assert(!"Should not get here."); break;
750 ir_constant::ir_constant(const struct glsl_type
*type
, exec_list
*value_list
)
751 : ir_rvalue(ir_type_constant
)
753 this->const_elements
= NULL
;
756 assert(type
->is_scalar() || type
->is_vector() || type
->is_matrix()
757 || type
->is_record() || type
->is_array());
759 /* If the constant is a record, the types of each of the entries in
760 * value_list must be a 1-for-1 match with the structure components. Each
761 * entry must also be a constant. Just move the nodes from the value_list
762 * to the list in the ir_constant.
764 if (type
->is_array() || type
->is_record()) {
765 this->const_elements
= ralloc_array(this, ir_constant
*, type
->length
);
767 foreach_in_list(ir_constant
, value
, value_list
) {
768 assert(value
->as_constant() != NULL
);
770 this->const_elements
[i
++] = value
;
775 for (unsigned i
= 0; i
< 16; i
++) {
776 this->value
.u
[i
] = 0;
779 ir_constant
*value
= (ir_constant
*) (value_list
->get_head_raw());
781 /* Constructors with exactly one scalar argument are special for vectors
782 * and matrices. For vectors, the scalar value is replicated to fill all
783 * the components. For matrices, the scalar fills the components of the
784 * diagonal while the rest is filled with 0.
786 if (value
->type
->is_scalar() && value
->next
->is_tail_sentinel()) {
787 if (type
->is_matrix()) {
788 /* Matrix - fill diagonal (rest is already set to 0) */
789 assert(type
->is_float() || type
->is_double());
790 for (unsigned i
= 0; i
< type
->matrix_columns
; i
++) {
791 if (type
->is_float())
792 this->value
.f
[i
* type
->vector_elements
+ i
] =
795 this->value
.d
[i
* type
->vector_elements
+ i
] =
799 /* Vector or scalar - fill all components */
800 switch (type
->base_type
) {
803 for (unsigned i
= 0; i
< type
->components(); i
++)
804 this->value
.u
[i
] = value
->value
.u
[0];
806 case GLSL_TYPE_FLOAT
:
807 for (unsigned i
= 0; i
< type
->components(); i
++)
808 this->value
.f
[i
] = value
->value
.f
[0];
810 case GLSL_TYPE_DOUBLE
:
811 for (unsigned i
= 0; i
< type
->components(); i
++)
812 this->value
.d
[i
] = value
->value
.d
[0];
814 case GLSL_TYPE_UINT64
:
815 case GLSL_TYPE_INT64
:
816 for (unsigned i
= 0; i
< type
->components(); i
++)
817 this->value
.u64
[i
] = value
->value
.u64
[0];
820 for (unsigned i
= 0; i
< type
->components(); i
++)
821 this->value
.b
[i
] = value
->value
.b
[0];
824 assert(!"Should not get here.");
831 if (type
->is_matrix() && value
->type
->is_matrix()) {
832 assert(value
->next
->is_tail_sentinel());
834 /* From section 5.4.2 of the GLSL 1.20 spec:
835 * "If a matrix is constructed from a matrix, then each component
836 * (column i, row j) in the result that has a corresponding component
837 * (column i, row j) in the argument will be initialized from there."
839 unsigned cols
= MIN2(type
->matrix_columns
, value
->type
->matrix_columns
);
840 unsigned rows
= MIN2(type
->vector_elements
, value
->type
->vector_elements
);
841 for (unsigned i
= 0; i
< cols
; i
++) {
842 for (unsigned j
= 0; j
< rows
; j
++) {
843 const unsigned src
= i
* value
->type
->vector_elements
+ j
;
844 const unsigned dst
= i
* type
->vector_elements
+ j
;
845 this->value
.f
[dst
] = value
->value
.f
[src
];
849 /* "All other components will be initialized to the identity matrix." */
850 for (unsigned i
= cols
; i
< type
->matrix_columns
; i
++)
851 this->value
.f
[i
* type
->vector_elements
+ i
] = 1.0;
856 /* Use each component from each entry in the value_list to initialize one
857 * component of the constant being constructed.
861 assert(value
->as_constant() != NULL
);
862 assert(!value
->is_tail_sentinel());
864 for (unsigned j
= 0; j
< value
->type
->components(); j
++) {
865 switch (type
->base_type
) {
867 this->value
.u
[i
] = value
->get_uint_component(j
);
870 this->value
.i
[i
] = value
->get_int_component(j
);
872 case GLSL_TYPE_FLOAT
:
873 this->value
.f
[i
] = value
->get_float_component(j
);
876 this->value
.b
[i
] = value
->get_bool_component(j
);
878 case GLSL_TYPE_DOUBLE
:
879 this->value
.d
[i
] = value
->get_double_component(j
);
881 case GLSL_TYPE_UINT64
:
882 this->value
.u64
[i
] = value
->get_uint64_component(j
);
884 case GLSL_TYPE_INT64
:
885 this->value
.i64
[i
] = value
->get_int64_component(j
);
888 /* FINISHME: What to do? Exceptions are not the answer.
894 if (i
>= type
->components())
898 if (i
>= type
->components())
899 break; /* avoid downcasting a list sentinel */
900 value
= (ir_constant
*) value
->next
;
905 ir_constant::zero(void *mem_ctx
, const glsl_type
*type
)
907 assert(type
->is_scalar() || type
->is_vector() || type
->is_matrix()
908 || type
->is_record() || type
->is_array());
910 ir_constant
*c
= new(mem_ctx
) ir_constant
;
912 memset(&c
->value
, 0, sizeof(c
->value
));
914 if (type
->is_array()) {
915 c
->const_elements
= ralloc_array(c
, ir_constant
*, type
->length
);
917 for (unsigned i
= 0; i
< type
->length
; i
++)
918 c
->const_elements
[i
] = ir_constant::zero(c
, type
->fields
.array
);
921 if (type
->is_record()) {
922 c
->const_elements
= ralloc_array(c
, ir_constant
*, type
->length
);
924 for (unsigned i
= 0; i
< type
->length
; i
++) {
925 c
->const_elements
[i
] =
926 ir_constant::zero(mem_ctx
, type
->fields
.structure
[i
].type
);
934 ir_constant::get_bool_component(unsigned i
) const
936 switch (this->type
->base_type
) {
937 case GLSL_TYPE_UINT
: return this->value
.u
[i
] != 0;
938 case GLSL_TYPE_INT
: return this->value
.i
[i
] != 0;
939 case GLSL_TYPE_FLOAT
: return ((int)this->value
.f
[i
]) != 0;
940 case GLSL_TYPE_BOOL
: return this->value
.b
[i
];
941 case GLSL_TYPE_DOUBLE
: return this->value
.d
[i
] != 0.0;
942 case GLSL_TYPE_UINT64
: return this->value
.u64
[i
] != 0;
943 case GLSL_TYPE_INT64
: return this->value
.i64
[i
] != 0;
944 default: assert(!"Should not get here."); break;
947 /* Must return something to make the compiler happy. This is clearly an
954 ir_constant::get_float_component(unsigned i
) const
956 switch (this->type
->base_type
) {
957 case GLSL_TYPE_UINT
: return (float) this->value
.u
[i
];
958 case GLSL_TYPE_INT
: return (float) this->value
.i
[i
];
959 case GLSL_TYPE_FLOAT
: return this->value
.f
[i
];
960 case GLSL_TYPE_BOOL
: return this->value
.b
[i
] ? 1.0f
: 0.0f
;
961 case GLSL_TYPE_DOUBLE
: return (float) this->value
.d
[i
];
962 case GLSL_TYPE_UINT64
: return (float) this->value
.u64
[i
];
963 case GLSL_TYPE_INT64
: return (float) this->value
.i64
[i
];
964 default: assert(!"Should not get here."); break;
967 /* Must return something to make the compiler happy. This is clearly an
974 ir_constant::get_double_component(unsigned i
) const
976 switch (this->type
->base_type
) {
977 case GLSL_TYPE_UINT
: return (double) this->value
.u
[i
];
978 case GLSL_TYPE_INT
: return (double) this->value
.i
[i
];
979 case GLSL_TYPE_FLOAT
: return (double) this->value
.f
[i
];
980 case GLSL_TYPE_BOOL
: return this->value
.b
[i
] ? 1.0 : 0.0;
981 case GLSL_TYPE_DOUBLE
: return this->value
.d
[i
];
982 case GLSL_TYPE_UINT64
: return (double) this->value
.u64
[i
];
983 case GLSL_TYPE_INT64
: return (double) this->value
.i64
[i
];
984 default: assert(!"Should not get here."); break;
987 /* Must return something to make the compiler happy. This is clearly an
994 ir_constant::get_int_component(unsigned i
) const
996 switch (this->type
->base_type
) {
997 case GLSL_TYPE_UINT
: return this->value
.u
[i
];
998 case GLSL_TYPE_INT
: return this->value
.i
[i
];
999 case GLSL_TYPE_FLOAT
: return (int) this->value
.f
[i
];
1000 case GLSL_TYPE_BOOL
: return this->value
.b
[i
] ? 1 : 0;
1001 case GLSL_TYPE_DOUBLE
: return (int) this->value
.d
[i
];
1002 case GLSL_TYPE_UINT64
: return (int) this->value
.u64
[i
];
1003 case GLSL_TYPE_INT64
: return (int) this->value
.i64
[i
];
1004 default: assert(!"Should not get here."); break;
1007 /* Must return something to make the compiler happy. This is clearly an
1014 ir_constant::get_uint_component(unsigned i
) const
1016 switch (this->type
->base_type
) {
1017 case GLSL_TYPE_UINT
: return this->value
.u
[i
];
1018 case GLSL_TYPE_INT
: return this->value
.i
[i
];
1019 case GLSL_TYPE_FLOAT
: return (unsigned) this->value
.f
[i
];
1020 case GLSL_TYPE_BOOL
: return this->value
.b
[i
] ? 1 : 0;
1021 case GLSL_TYPE_DOUBLE
: return (unsigned) this->value
.d
[i
];
1022 case GLSL_TYPE_UINT64
: return (unsigned) this->value
.u64
[i
];
1023 case GLSL_TYPE_INT64
: return (unsigned) this->value
.i64
[i
];
1024 default: assert(!"Should not get here."); break;
1027 /* Must return something to make the compiler happy. This is clearly an
1034 ir_constant::get_int64_component(unsigned i
) const
1036 switch (this->type
->base_type
) {
1037 case GLSL_TYPE_UINT
: return this->value
.u
[i
];
1038 case GLSL_TYPE_INT
: return this->value
.i
[i
];
1039 case GLSL_TYPE_FLOAT
: return (int64_t) this->value
.f
[i
];
1040 case GLSL_TYPE_BOOL
: return this->value
.b
[i
] ? 1 : 0;
1041 case GLSL_TYPE_DOUBLE
: return (int64_t) this->value
.d
[i
];
1042 case GLSL_TYPE_UINT64
: return (int64_t) this->value
.u64
[i
];
1043 case GLSL_TYPE_INT64
: return this->value
.i64
[i
];
1044 default: assert(!"Should not get here."); break;
1047 /* Must return something to make the compiler happy. This is clearly an
1054 ir_constant::get_uint64_component(unsigned i
) const
1056 switch (this->type
->base_type
) {
1057 case GLSL_TYPE_UINT
: return this->value
.u
[i
];
1058 case GLSL_TYPE_INT
: return this->value
.i
[i
];
1059 case GLSL_TYPE_FLOAT
: return (uint64_t) this->value
.f
[i
];
1060 case GLSL_TYPE_BOOL
: return this->value
.b
[i
] ? 1 : 0;
1061 case GLSL_TYPE_DOUBLE
: return (uint64_t) this->value
.d
[i
];
1062 case GLSL_TYPE_UINT64
: return this->value
.u64
[i
];
1063 case GLSL_TYPE_INT64
: return (uint64_t) this->value
.i64
[i
];
1064 default: assert(!"Should not get here."); break;
1067 /* Must return something to make the compiler happy. This is clearly an
1074 ir_constant::get_array_element(unsigned i
) const
1076 assert(this->type
->is_array());
1078 /* From page 35 (page 41 of the PDF) of the GLSL 1.20 spec:
1080 * "Behavior is undefined if a shader subscripts an array with an index
1081 * less than 0 or greater than or equal to the size the array was
1084 * Most out-of-bounds accesses are removed before things could get this far.
1085 * There are cases where non-constant array index values can get constant
1090 else if (i
>= this->type
->length
)
1091 i
= this->type
->length
- 1;
1093 return const_elements
[i
];
1097 ir_constant::get_record_field(int idx
)
1099 assert(this->type
->is_record());
1100 assert(idx
>= 0 && (unsigned) idx
< this->type
->length
);
1102 return const_elements
[idx
];
1106 ir_constant::copy_offset(ir_constant
*src
, int offset
)
1108 switch (this->type
->base_type
) {
1109 case GLSL_TYPE_UINT
:
1111 case GLSL_TYPE_FLOAT
:
1112 case GLSL_TYPE_DOUBLE
:
1113 case GLSL_TYPE_UINT64
:
1114 case GLSL_TYPE_INT64
:
1115 case GLSL_TYPE_BOOL
: {
1116 unsigned int size
= src
->type
->components();
1117 assert (size
<= this->type
->components() - offset
);
1118 for (unsigned int i
=0; i
<size
; i
++) {
1119 switch (this->type
->base_type
) {
1120 case GLSL_TYPE_UINT
:
1121 value
.u
[i
+offset
] = src
->get_uint_component(i
);
1124 value
.i
[i
+offset
] = src
->get_int_component(i
);
1126 case GLSL_TYPE_FLOAT
:
1127 value
.f
[i
+offset
] = src
->get_float_component(i
);
1129 case GLSL_TYPE_BOOL
:
1130 value
.b
[i
+offset
] = src
->get_bool_component(i
);
1132 case GLSL_TYPE_DOUBLE
:
1133 value
.d
[i
+offset
] = src
->get_double_component(i
);
1135 case GLSL_TYPE_UINT64
:
1136 value
.u64
[i
+offset
] = src
->get_uint64_component(i
);
1138 case GLSL_TYPE_INT64
:
1139 value
.i64
[i
+offset
] = src
->get_int64_component(i
);
1141 default: // Shut up the compiler
1148 case GLSL_TYPE_STRUCT
:
1149 case GLSL_TYPE_ARRAY
: {
1150 assert (src
->type
== this->type
);
1151 for (unsigned i
= 0; i
< this->type
->length
; i
++) {
1152 this->const_elements
[i
] = src
->const_elements
[i
]->clone(this, NULL
);
1158 assert(!"Should not get here.");
1164 ir_constant::copy_masked_offset(ir_constant
*src
, int offset
, unsigned int mask
)
1166 assert (!type
->is_array() && !type
->is_record());
1168 if (!type
->is_vector() && !type
->is_matrix()) {
1174 for (int i
=0; i
<4; i
++) {
1175 if (mask
& (1 << i
)) {
1176 switch (this->type
->base_type
) {
1177 case GLSL_TYPE_UINT
:
1178 value
.u
[i
+offset
] = src
->get_uint_component(id
++);
1181 value
.i
[i
+offset
] = src
->get_int_component(id
++);
1183 case GLSL_TYPE_FLOAT
:
1184 value
.f
[i
+offset
] = src
->get_float_component(id
++);
1186 case GLSL_TYPE_BOOL
:
1187 value
.b
[i
+offset
] = src
->get_bool_component(id
++);
1189 case GLSL_TYPE_DOUBLE
:
1190 value
.d
[i
+offset
] = src
->get_double_component(id
++);
1192 case GLSL_TYPE_UINT64
:
1193 value
.u64
[i
+offset
] = src
->get_uint64_component(id
++);
1195 case GLSL_TYPE_INT64
:
1196 value
.i64
[i
+offset
] = src
->get_int64_component(id
++);
1199 assert(!"Should not get here.");
1207 ir_constant::has_value(const ir_constant
*c
) const
1209 if (this->type
!= c
->type
)
1212 if (this->type
->is_array() || this->type
->is_record()) {
1213 for (unsigned i
= 0; i
< this->type
->length
; i
++) {
1214 if (!this->const_elements
[i
]->has_value(c
->const_elements
[i
]))
1220 for (unsigned i
= 0; i
< this->type
->components(); i
++) {
1221 switch (this->type
->base_type
) {
1222 case GLSL_TYPE_UINT
:
1223 if (this->value
.u
[i
] != c
->value
.u
[i
])
1227 if (this->value
.i
[i
] != c
->value
.i
[i
])
1230 case GLSL_TYPE_FLOAT
:
1231 if (this->value
.f
[i
] != c
->value
.f
[i
])
1234 case GLSL_TYPE_BOOL
:
1235 if (this->value
.b
[i
] != c
->value
.b
[i
])
1238 case GLSL_TYPE_DOUBLE
:
1239 if (this->value
.d
[i
] != c
->value
.d
[i
])
1242 case GLSL_TYPE_UINT64
:
1243 if (this->value
.u64
[i
] != c
->value
.u64
[i
])
1246 case GLSL_TYPE_INT64
:
1247 if (this->value
.i64
[i
] != c
->value
.i64
[i
])
1251 assert(!"Should not get here.");
1260 ir_constant::is_value(float f
, int i
) const
1262 if (!this->type
->is_scalar() && !this->type
->is_vector())
1265 /* Only accept boolean values for 0/1. */
1266 if (int(bool(i
)) != i
&& this->type
->is_boolean())
1269 for (unsigned c
= 0; c
< this->type
->vector_elements
; c
++) {
1270 switch (this->type
->base_type
) {
1271 case GLSL_TYPE_FLOAT
:
1272 if (this->value
.f
[c
] != f
)
1276 if (this->value
.i
[c
] != i
)
1279 case GLSL_TYPE_UINT
:
1280 if (this->value
.u
[c
] != unsigned(i
))
1283 case GLSL_TYPE_BOOL
:
1284 if (this->value
.b
[c
] != bool(i
))
1287 case GLSL_TYPE_DOUBLE
:
1288 if (this->value
.d
[c
] != double(f
))
1291 case GLSL_TYPE_UINT64
:
1292 if (this->value
.u64
[c
] != uint64_t(i
))
1295 case GLSL_TYPE_INT64
:
1296 if (this->value
.i64
[c
] != i
)
1300 /* The only other base types are structures, arrays, and samplers.
1301 * Samplers cannot be constants, and the others should have been
1302 * filtered out above.
1304 assert(!"Should not get here.");
1313 ir_constant::is_zero() const
1315 return is_value(0.0, 0);
1319 ir_constant::is_one() const
1321 return is_value(1.0, 1);
1325 ir_constant::is_negative_one() const
1327 return is_value(-1.0, -1);
1331 ir_constant::is_uint16_constant() const
1333 if (!type
->is_integer())
1336 return value
.u
[0] < (1 << 16);
1340 : ir_instruction(ir_type_loop
)
1345 ir_dereference_variable::ir_dereference_variable(ir_variable
*var
)
1346 : ir_dereference(ir_type_dereference_variable
)
1348 assert(var
!= NULL
);
1351 this->type
= var
->type
;
1355 ir_dereference_array::ir_dereference_array(ir_rvalue
*value
,
1356 ir_rvalue
*array_index
)
1357 : ir_dereference(ir_type_dereference_array
)
1359 this->array_index
= array_index
;
1360 this->set_array(value
);
1364 ir_dereference_array::ir_dereference_array(ir_variable
*var
,
1365 ir_rvalue
*array_index
)
1366 : ir_dereference(ir_type_dereference_array
)
1368 void *ctx
= ralloc_parent(var
);
1370 this->array_index
= array_index
;
1371 this->set_array(new(ctx
) ir_dereference_variable(var
));
1376 ir_dereference_array::set_array(ir_rvalue
*value
)
1378 assert(value
!= NULL
);
1380 this->array
= value
;
1382 const glsl_type
*const vt
= this->array
->type
;
1384 if (vt
->is_array()) {
1385 type
= vt
->fields
.array
;
1386 } else if (vt
->is_matrix()) {
1387 type
= vt
->column_type();
1388 } else if (vt
->is_vector()) {
1389 type
= vt
->get_base_type();
1394 ir_dereference_record::ir_dereference_record(ir_rvalue
*value
,
1396 : ir_dereference(ir_type_dereference_record
)
1398 assert(value
!= NULL
);
1400 this->record
= value
;
1401 this->type
= this->record
->type
->field_type(field
);
1402 this->field_idx
= this->record
->type
->field_index(field
);
1406 ir_dereference_record::ir_dereference_record(ir_variable
*var
,
1408 : ir_dereference(ir_type_dereference_record
)
1410 void *ctx
= ralloc_parent(var
);
1412 this->record
= new(ctx
) ir_dereference_variable(var
);
1413 this->type
= this->record
->type
->field_type(field
);
1414 this->field_idx
= this->record
->type
->field_index(field
);
1418 ir_dereference::is_lvalue(const struct _mesa_glsl_parse_state
*state
) const
1420 ir_variable
*var
= this->variable_referenced();
1422 /* Every l-value derference chain eventually ends in a variable.
1424 if ((var
== NULL
) || var
->data
.read_only
)
1427 /* From section 4.1.7 of the ARB_bindless_texture spec:
1429 * "Samplers can be used as l-values, so can be assigned into and used as
1430 * "out" and "inout" function parameters."
1432 * From section 4.1.X of the ARB_bindless_texture spec:
1434 * "Images can be used as l-values, so can be assigned into and used as
1435 * "out" and "inout" function parameters."
1437 if ((!state
|| state
->has_bindless()) &&
1438 (this->type
->contains_sampler() || this->type
->contains_image()))
1441 /* From section 4.1.7 of the GLSL 4.40 spec:
1443 * "Opaque variables cannot be treated as l-values; hence cannot
1444 * be used as out or inout function parameters, nor can they be
1447 if (this->type
->contains_opaque())
1454 static const char * const tex_opcode_strs
[] = { "tex", "txb", "txl", "txd", "txf", "txf_ms", "txs", "lod", "tg4", "query_levels", "texture_samples", "samples_identical" };
1456 const char *ir_texture::opcode_string()
1458 assert((unsigned int) op
< ARRAY_SIZE(tex_opcode_strs
));
1459 return tex_opcode_strs
[op
];
1463 ir_texture::get_opcode(const char *str
)
1465 const int count
= sizeof(tex_opcode_strs
) / sizeof(tex_opcode_strs
[0]);
1466 for (int op
= 0; op
< count
; op
++) {
1467 if (strcmp(str
, tex_opcode_strs
[op
]) == 0)
1468 return (ir_texture_opcode
) op
;
1470 return (ir_texture_opcode
) -1;
1475 ir_texture::set_sampler(ir_dereference
*sampler
, const glsl_type
*type
)
1477 assert(sampler
!= NULL
);
1478 assert(type
!= NULL
);
1479 this->sampler
= sampler
;
1482 if (this->op
== ir_txs
|| this->op
== ir_query_levels
||
1483 this->op
== ir_texture_samples
) {
1484 assert(type
->base_type
== GLSL_TYPE_INT
);
1485 } else if (this->op
== ir_lod
) {
1486 assert(type
->vector_elements
== 2);
1487 assert(type
->is_float());
1488 } else if (this->op
== ir_samples_identical
) {
1489 assert(type
== glsl_type::bool_type
);
1490 assert(sampler
->type
->is_sampler());
1491 assert(sampler
->type
->sampler_dimensionality
== GLSL_SAMPLER_DIM_MS
);
1493 assert(sampler
->type
->sampled_type
== (int) type
->base_type
);
1494 if (sampler
->type
->sampler_shadow
)
1495 assert(type
->vector_elements
== 4 || type
->vector_elements
== 1);
1497 assert(type
->vector_elements
== 4);
1503 ir_swizzle::init_mask(const unsigned *comp
, unsigned count
)
1505 assert((count
>= 1) && (count
<= 4));
1507 memset(&this->mask
, 0, sizeof(this->mask
));
1508 this->mask
.num_components
= count
;
1510 unsigned dup_mask
= 0;
1513 assert(comp
[3] <= 3);
1514 dup_mask
|= (1U << comp
[3])
1515 & ((1U << comp
[0]) | (1U << comp
[1]) | (1U << comp
[2]));
1516 this->mask
.w
= comp
[3];
1519 assert(comp
[2] <= 3);
1520 dup_mask
|= (1U << comp
[2])
1521 & ((1U << comp
[0]) | (1U << comp
[1]));
1522 this->mask
.z
= comp
[2];
1525 assert(comp
[1] <= 3);
1526 dup_mask
|= (1U << comp
[1])
1527 & ((1U << comp
[0]));
1528 this->mask
.y
= comp
[1];
1531 assert(comp
[0] <= 3);
1532 this->mask
.x
= comp
[0];
1535 this->mask
.has_duplicates
= dup_mask
!= 0;
1537 /* Based on the number of elements in the swizzle and the base type
1538 * (i.e., float, int, unsigned, or bool) of the vector being swizzled,
1539 * generate the type of the resulting value.
1541 type
= glsl_type::get_instance(val
->type
->base_type
, mask
.num_components
, 1);
1544 ir_swizzle::ir_swizzle(ir_rvalue
*val
, unsigned x
, unsigned y
, unsigned z
,
1545 unsigned w
, unsigned count
)
1546 : ir_rvalue(ir_type_swizzle
), val(val
)
1548 const unsigned components
[4] = { x
, y
, z
, w
};
1549 this->init_mask(components
, count
);
1552 ir_swizzle::ir_swizzle(ir_rvalue
*val
, const unsigned *comp
,
1554 : ir_rvalue(ir_type_swizzle
), val(val
)
1556 this->init_mask(comp
, count
);
1559 ir_swizzle::ir_swizzle(ir_rvalue
*val
, ir_swizzle_mask mask
)
1560 : ir_rvalue(ir_type_swizzle
), val(val
), mask(mask
)
1562 this->type
= glsl_type::get_instance(val
->type
->base_type
,
1563 mask
.num_components
, 1);
1572 ir_swizzle::create(ir_rvalue
*val
, const char *str
, unsigned vector_length
)
1574 void *ctx
= ralloc_parent(val
);
1576 /* For each possible swizzle character, this table encodes the value in
1577 * \c idx_map that represents the 0th element of the vector. For invalid
1578 * swizzle characters (e.g., 'k'), a special value is used that will allow
1579 * detection of errors.
1581 static const unsigned char base_idx
[26] = {
1582 /* a b c d e f g h i j k l m */
1583 R
, R
, I
, I
, I
, I
, R
, I
, I
, I
, I
, I
, I
,
1584 /* n o p q r s t u v w x y z */
1585 I
, I
, S
, S
, R
, S
, S
, I
, I
, X
, X
, X
, X
1588 /* Each valid swizzle character has an entry in the previous table. This
1589 * table encodes the base index encoded in the previous table plus the actual
1590 * index of the swizzle character. When processing swizzles, the first
1591 * character in the string is indexed in the previous table. Each character
1592 * in the string is indexed in this table, and the value found there has the
1593 * value form the first table subtracted. The result must be on the range
1596 * For example, the string "wzyx" will get X from the first table. Each of
1597 * the charcaters will get X+3, X+2, X+1, and X+0 from this table. After
1598 * subtraction, the swizzle values are { 3, 2, 1, 0 }.
1600 * The string "wzrg" will get X from the first table. Each of the characters
1601 * will get X+3, X+2, R+0, and R+1 from this table. After subtraction, the
1602 * swizzle values are { 3, 2, 4, 5 }. Since 4 and 5 are outside the range
1603 * [0,3], the error is detected.
1605 static const unsigned char idx_map
[26] = {
1606 /* a b c d e f g h i j k l m */
1607 R
+3, R
+2, 0, 0, 0, 0, R
+1, 0, 0, 0, 0, 0, 0,
1608 /* n o p q r s t u v w x y z */
1609 0, 0, S
+2, S
+3, R
+0, S
+0, S
+1, 0, 0, X
+3, X
+0, X
+1, X
+2
1612 int swiz_idx
[4] = { 0, 0, 0, 0 };
1616 /* Validate the first character in the swizzle string and look up the base
1617 * index value as described above.
1619 if ((str
[0] < 'a') || (str
[0] > 'z'))
1622 const unsigned base
= base_idx
[str
[0] - 'a'];
1625 for (i
= 0; (i
< 4) && (str
[i
] != '\0'); i
++) {
1626 /* Validate the next character, and, as described above, convert it to a
1629 if ((str
[i
] < 'a') || (str
[i
] > 'z'))
1632 swiz_idx
[i
] = idx_map
[str
[i
] - 'a'] - base
;
1633 if ((swiz_idx
[i
] < 0) || (swiz_idx
[i
] >= (int) vector_length
))
1640 return new(ctx
) ir_swizzle(val
, swiz_idx
[0], swiz_idx
[1], swiz_idx
[2],
1650 ir_swizzle::variable_referenced() const
1652 return this->val
->variable_referenced();
1656 bool ir_variable::temporaries_allocate_names
= false;
1658 const char ir_variable::tmp_name
[] = "compiler_temp";
1660 ir_variable::ir_variable(const struct glsl_type
*type
, const char *name
,
1661 ir_variable_mode mode
)
1662 : ir_instruction(ir_type_variable
)
1666 if (mode
== ir_var_temporary
&& !ir_variable::temporaries_allocate_names
)
1669 /* The ir_variable clone method may call this constructor with name set to
1673 || mode
== ir_var_temporary
1674 || mode
== ir_var_function_in
1675 || mode
== ir_var_function_out
1676 || mode
== ir_var_function_inout
);
1677 assert(name
!= ir_variable::tmp_name
1678 || mode
== ir_var_temporary
);
1679 if (mode
== ir_var_temporary
1680 && (name
== NULL
|| name
== ir_variable::tmp_name
)) {
1681 this->name
= ir_variable::tmp_name
;
1682 } else if (name
== NULL
||
1683 strlen(name
) < ARRAY_SIZE(this->name_storage
)) {
1684 strcpy(this->name_storage
, name
? name
: "");
1685 this->name
= this->name_storage
;
1687 this->name
= ralloc_strdup(this, name
);
1690 this->u
.max_ifc_array_access
= NULL
;
1692 this->data
.explicit_location
= false;
1693 this->data
.has_initializer
= false;
1694 this->data
.location
= -1;
1695 this->data
.location_frac
= 0;
1696 this->data
.binding
= 0;
1697 this->data
.warn_extension_index
= 0;
1698 this->constant_value
= NULL
;
1699 this->constant_initializer
= NULL
;
1700 this->data
.origin_upper_left
= false;
1701 this->data
.pixel_center_integer
= false;
1702 this->data
.depth_layout
= ir_depth_layout_none
;
1703 this->data
.used
= false;
1704 this->data
.always_active_io
= false;
1705 this->data
.read_only
= false;
1706 this->data
.centroid
= false;
1707 this->data
.sample
= false;
1708 this->data
.patch
= false;
1709 this->data
.invariant
= false;
1710 this->data
.how_declared
= ir_var_declared_normally
;
1711 this->data
.mode
= mode
;
1712 this->data
.interpolation
= INTERP_MODE_NONE
;
1713 this->data
.max_array_access
= -1;
1714 this->data
.offset
= 0;
1715 this->data
.precision
= GLSL_PRECISION_NONE
;
1716 this->data
.memory_read_only
= false;
1717 this->data
.memory_write_only
= false;
1718 this->data
.memory_coherent
= false;
1719 this->data
.memory_volatile
= false;
1720 this->data
.memory_restrict
= false;
1721 this->data
.from_ssbo_unsized_array
= false;
1722 this->data
.fb_fetch_output
= false;
1723 this->data
.bindless
= false;
1724 this->data
.bound
= false;
1727 if (type
->is_interface())
1728 this->init_interface_type(type
);
1729 else if (type
->without_array()->is_interface())
1730 this->init_interface_type(type
->without_array());
1736 interpolation_string(unsigned interpolation
)
1738 switch (interpolation
) {
1739 case INTERP_MODE_NONE
: return "no";
1740 case INTERP_MODE_SMOOTH
: return "smooth";
1741 case INTERP_MODE_FLAT
: return "flat";
1742 case INTERP_MODE_NOPERSPECTIVE
: return "noperspective";
1745 assert(!"Should not get here.");
1749 const char *const ir_variable::warn_extension_table
[] = {
1751 "GL_ARB_shader_stencil_export",
1752 "GL_AMD_shader_stencil_export",
1756 ir_variable::enable_extension_warning(const char *extension
)
1758 for (unsigned i
= 0; i
< ARRAY_SIZE(warn_extension_table
); i
++) {
1759 if (strcmp(warn_extension_table
[i
], extension
) == 0) {
1760 this->data
.warn_extension_index
= i
;
1765 assert(!"Should not get here.");
1766 this->data
.warn_extension_index
= 0;
1770 ir_variable::get_extension_warning() const
1772 return this->data
.warn_extension_index
== 0
1773 ? NULL
: warn_extension_table
[this->data
.warn_extension_index
];
1776 ir_function_signature::ir_function_signature(const glsl_type
*return_type
,
1777 builtin_available_predicate b
)
1778 : ir_instruction(ir_type_function_signature
),
1779 return_type(return_type
), is_defined(false),
1780 intrinsic_id(ir_intrinsic_invalid
), builtin_avail(b
), _function(NULL
)
1782 this->origin
= NULL
;
1787 ir_function_signature::is_builtin() const
1789 return builtin_avail
!= NULL
;
1794 ir_function_signature::is_builtin_available(const _mesa_glsl_parse_state
*state
) const
1796 /* We can't call the predicate without a state pointer, so just say that
1797 * the signature is available. At compile time, we need the filtering,
1798 * but also receive a valid state pointer. At link time, we're resolving
1799 * imported built-in prototypes to their definitions, which will always
1800 * be an exact match. So we can skip the filtering.
1805 assert(builtin_avail
!= NULL
);
1806 return builtin_avail(state
);
1811 modes_match(unsigned a
, unsigned b
)
1816 /* Accept "in" vs. "const in" */
1817 if ((a
== ir_var_const_in
&& b
== ir_var_function_in
) ||
1818 (b
== ir_var_const_in
&& a
== ir_var_function_in
))
1826 ir_function_signature::qualifiers_match(exec_list
*params
)
1828 /* check that the qualifiers match. */
1829 foreach_two_lists(a_node
, &this->parameters
, b_node
, params
) {
1830 ir_variable
*a
= (ir_variable
*) a_node
;
1831 ir_variable
*b
= (ir_variable
*) b_node
;
1833 if (a
->data
.read_only
!= b
->data
.read_only
||
1834 !modes_match(a
->data
.mode
, b
->data
.mode
) ||
1835 a
->data
.interpolation
!= b
->data
.interpolation
||
1836 a
->data
.centroid
!= b
->data
.centroid
||
1837 a
->data
.sample
!= b
->data
.sample
||
1838 a
->data
.patch
!= b
->data
.patch
||
1839 a
->data
.memory_read_only
!= b
->data
.memory_read_only
||
1840 a
->data
.memory_write_only
!= b
->data
.memory_write_only
||
1841 a
->data
.memory_coherent
!= b
->data
.memory_coherent
||
1842 a
->data
.memory_volatile
!= b
->data
.memory_volatile
||
1843 a
->data
.memory_restrict
!= b
->data
.memory_restrict
) {
1845 /* parameter a's qualifiers don't match */
1854 ir_function_signature::replace_parameters(exec_list
*new_params
)
1856 /* Destroy all of the previous parameter information. If the previous
1857 * parameter information comes from the function prototype, it may either
1858 * specify incorrect parameter names or not have names at all.
1860 new_params
->move_nodes_to(¶meters
);
1864 ir_function::ir_function(const char *name
)
1865 : ir_instruction(ir_type_function
)
1867 this->subroutine_index
= -1;
1868 this->name
= ralloc_strdup(this, name
);
1873 ir_function::has_user_signature()
1875 foreach_in_list(ir_function_signature
, sig
, &this->signatures
) {
1876 if (!sig
->is_builtin())
1884 ir_rvalue::error_value(void *mem_ctx
)
1886 ir_rvalue
*v
= new(mem_ctx
) ir_rvalue(ir_type_unset
);
1888 v
->type
= glsl_type::error_type
;
1894 visit_exec_list(exec_list
*list
, ir_visitor
*visitor
)
1896 foreach_in_list_safe(ir_instruction
, node
, list
) {
1897 node
->accept(visitor
);
1903 steal_memory(ir_instruction
*ir
, void *new_ctx
)
1905 ir_variable
*var
= ir
->as_variable();
1906 ir_function
*fn
= ir
->as_function();
1907 ir_constant
*constant
= ir
->as_constant();
1908 if (var
!= NULL
&& var
->constant_value
!= NULL
)
1909 steal_memory(var
->constant_value
, ir
);
1911 if (var
!= NULL
&& var
->constant_initializer
!= NULL
)
1912 steal_memory(var
->constant_initializer
, ir
);
1914 if (fn
!= NULL
&& fn
->subroutine_types
)
1915 ralloc_steal(new_ctx
, fn
->subroutine_types
);
1917 /* The components of aggregate constants are not visited by the normal
1918 * visitor, so steal their values by hand.
1920 if (constant
!= NULL
&&
1921 (constant
->type
->is_array() || constant
->type
->is_record())) {
1922 for (unsigned int i
= 0; i
< constant
->type
->length
; i
++) {
1923 steal_memory(constant
->const_elements
[i
], ir
);
1927 ralloc_steal(new_ctx
, ir
);
1932 reparent_ir(exec_list
*list
, void *mem_ctx
)
1934 foreach_in_list(ir_instruction
, node
, list
) {
1935 visit_tree(node
, steal_memory
, mem_ctx
);
1941 try_min_one(ir_rvalue
*ir
)
1943 ir_expression
*expr
= ir
->as_expression();
1945 if (!expr
|| expr
->operation
!= ir_binop_min
)
1948 if (expr
->operands
[0]->is_one())
1949 return expr
->operands
[1];
1951 if (expr
->operands
[1]->is_one())
1952 return expr
->operands
[0];
1958 try_max_zero(ir_rvalue
*ir
)
1960 ir_expression
*expr
= ir
->as_expression();
1962 if (!expr
|| expr
->operation
!= ir_binop_max
)
1965 if (expr
->operands
[0]->is_zero())
1966 return expr
->operands
[1];
1968 if (expr
->operands
[1]->is_zero())
1969 return expr
->operands
[0];
1975 ir_rvalue::as_rvalue_to_saturate()
1977 ir_expression
*expr
= this->as_expression();
1982 ir_rvalue
*max_zero
= try_max_zero(expr
);
1984 return try_min_one(max_zero
);
1986 ir_rvalue
*min_one
= try_min_one(expr
);
1988 return try_max_zero(min_one
);
1997 vertices_per_prim(GLenum prim
)
2006 case GL_LINES_ADJACENCY
:
2008 case GL_TRIANGLES_ADJACENCY
:
2011 assert(!"Bad primitive");
2017 * Generate a string describing the mode of a variable
2020 mode_string(const ir_variable
*var
)
2022 switch (var
->data
.mode
) {
2024 return (var
->data
.read_only
) ? "global constant" : "global variable";
2026 case ir_var_uniform
:
2029 case ir_var_shader_storage
:
2032 case ir_var_shader_in
:
2033 return "shader input";
2035 case ir_var_shader_out
:
2036 return "shader output";
2038 case ir_var_function_in
:
2039 case ir_var_const_in
:
2040 return "function input";
2042 case ir_var_function_out
:
2043 return "function output";
2045 case ir_var_function_inout
:
2046 return "function inout";
2048 case ir_var_system_value
:
2049 return "shader input";
2051 case ir_var_temporary
:
2052 return "compiler temporary";
2054 case ir_var_mode_count
:
2058 assert(!"Should not get here.");
2059 return "invalid variable";