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.
24 #include "main/core.h" /* for MAX2 */
26 #include "glsl_types.h"
28 ir_rvalue::ir_rvalue(enum ir_node_type t
)
31 this->type
= glsl_type::error_type
;
34 bool ir_rvalue::is_zero() const
39 bool ir_rvalue::is_one() const
44 bool ir_rvalue::is_negative_one() const
50 * Modify the swizzle make to move one component to another
52 * \param m IR swizzle to be modified
53 * \param from Component in the RHS that is to be swizzled
54 * \param to Desired swizzle location of \c from
57 update_rhs_swizzle(ir_swizzle_mask
&m
, unsigned from
, unsigned to
)
60 case 0: m
.x
= from
; break;
61 case 1: m
.y
= from
; break;
62 case 2: m
.z
= from
; break;
63 case 3: m
.w
= from
; break;
64 default: assert(!"Should not get here.");
67 m
.num_components
= MAX2(m
.num_components
, (to
+ 1));
71 ir_assignment::set_lhs(ir_rvalue
*lhs
)
74 bool swizzled
= false;
77 ir_swizzle
*swiz
= lhs
->as_swizzle();
82 unsigned write_mask
= 0;
83 ir_swizzle_mask rhs_swiz
= { 0, 0, 0, 0, 0, 0 };
85 for (unsigned i
= 0; i
< swiz
->mask
.num_components
; i
++) {
89 case 0: c
= swiz
->mask
.x
; break;
90 case 1: c
= swiz
->mask
.y
; break;
91 case 2: c
= swiz
->mask
.z
; break;
92 case 3: c
= swiz
->mask
.w
; break;
93 default: assert(!"Should not get here.");
96 write_mask
|= (((this->write_mask
>> i
) & 1) << c
);
97 update_rhs_swizzle(rhs_swiz
, i
, c
);
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 this->rhs
= new(mem_ctx
) ir_swizzle(this->rhs
, rhs_swiz
);
120 assert((lhs
== NULL
) || lhs
->as_dereference());
122 this->lhs
= (ir_dereference
*) lhs
;
126 ir_assignment::whole_variable_written()
128 ir_variable
*v
= this->lhs
->whole_variable_referenced();
133 if (v
->type
->is_scalar())
136 if (v
->type
->is_vector()) {
137 const unsigned mask
= (1U << v
->type
->vector_elements
) - 1;
139 if (mask
!= this->write_mask
)
143 /* Either all the vector components are assigned or the variable is some
144 * composite type (and the whole thing is assigned.
149 ir_assignment::ir_assignment(ir_dereference
*lhs
, ir_rvalue
*rhs
,
150 ir_rvalue
*condition
, unsigned write_mask
)
151 : ir_instruction(ir_type_assignment
)
153 this->condition
= condition
;
156 this->write_mask
= write_mask
;
158 if (lhs
->type
->is_scalar() || lhs
->type
->is_vector()) {
159 int lhs_components
= 0;
160 for (int i
= 0; i
< 4; i
++) {
161 if (write_mask
& (1 << i
))
165 assert(lhs_components
== this->rhs
->type
->vector_elements
);
169 ir_assignment::ir_assignment(ir_rvalue
*lhs
, ir_rvalue
*rhs
,
170 ir_rvalue
*condition
)
171 : ir_instruction(ir_type_assignment
)
173 this->condition
= condition
;
176 /* If the RHS is a vector type, assume that all components of the vector
177 * type are being written to the LHS. The write mask comes from the RHS
178 * because we can have a case where the LHS is a vec4 and the RHS is a
179 * vec3. In that case, the assignment is:
181 * (assign (...) (xyz) (var_ref lhs) (var_ref rhs))
183 if (rhs
->type
->is_vector())
184 this->write_mask
= (1U << rhs
->type
->vector_elements
) - 1;
185 else if (rhs
->type
->is_scalar())
186 this->write_mask
= 1;
188 this->write_mask
= 0;
193 ir_expression::ir_expression(int op
, const struct glsl_type
*type
,
194 ir_rvalue
*op0
, ir_rvalue
*op1
,
195 ir_rvalue
*op2
, ir_rvalue
*op3
)
196 : ir_rvalue(ir_type_expression
)
199 this->operation
= ir_expression_operation(op
);
200 this->operands
[0] = op0
;
201 this->operands
[1] = op1
;
202 this->operands
[2] = op2
;
203 this->operands
[3] = op3
;
205 int num_operands
= get_num_operands(this->operation
);
206 for (int i
= num_operands
; i
< 4; i
++) {
207 assert(this->operands
[i
] == NULL
);
212 ir_expression::ir_expression(int op
, ir_rvalue
*op0
)
213 : ir_rvalue(ir_type_expression
)
215 this->operation
= ir_expression_operation(op
);
216 this->operands
[0] = op0
;
217 this->operands
[1] = NULL
;
218 this->operands
[2] = NULL
;
219 this->operands
[3] = NULL
;
221 assert(op
<= ir_last_unop
);
223 switch (this->operation
) {
224 case ir_unop_bit_not
:
225 case ir_unop_logic_not
:
240 case ir_unop_round_even
:
244 case ir_unop_dFdx_coarse
:
245 case ir_unop_dFdx_fine
:
247 case ir_unop_dFdy_coarse
:
248 case ir_unop_dFdy_fine
:
249 case ir_unop_bitfield_reverse
:
250 case ir_unop_interpolate_at_centroid
:
251 case ir_unop_saturate
:
252 this->type
= op0
->type
;
259 case ir_unop_bitcast_f2i
:
260 case ir_unop_bit_count
:
261 case ir_unop_find_msb
:
262 case ir_unop_find_lsb
:
263 this->type
= glsl_type::get_instance(GLSL_TYPE_INT
,
264 op0
->type
->vector_elements
, 1);
271 case ir_unop_bitcast_i2f
:
272 case ir_unop_bitcast_u2f
:
273 this->type
= glsl_type::get_instance(GLSL_TYPE_FLOAT
,
274 op0
->type
->vector_elements
, 1);
280 this->type
= glsl_type::get_instance(GLSL_TYPE_BOOL
,
281 op0
->type
->vector_elements
, 1);
287 this->type
= glsl_type::get_instance(GLSL_TYPE_DOUBLE
,
288 op0
->type
->vector_elements
, 1);
294 case ir_unop_bitcast_f2u
:
295 this->type
= glsl_type::get_instance(GLSL_TYPE_UINT
,
296 op0
->type
->vector_elements
, 1);
300 case ir_unop_unpack_half_2x16_split_x
:
301 case ir_unop_unpack_half_2x16_split_y
:
302 this->type
= glsl_type::float_type
;
305 case ir_unop_unpack_double_2x32
:
306 this->type
= glsl_type::uvec2_type
;
310 this->type
= glsl_type::bool_type
;
313 case ir_unop_pack_snorm_2x16
:
314 case ir_unop_pack_snorm_4x8
:
315 case ir_unop_pack_unorm_2x16
:
316 case ir_unop_pack_unorm_4x8
:
317 case ir_unop_pack_half_2x16
:
318 this->type
= glsl_type::uint_type
;
321 case ir_unop_pack_double_2x32
:
322 this->type
= glsl_type::double_type
;
325 case ir_unop_unpack_snorm_2x16
:
326 case ir_unop_unpack_unorm_2x16
:
327 case ir_unop_unpack_half_2x16
:
328 this->type
= glsl_type::vec2_type
;
331 case ir_unop_unpack_snorm_4x8
:
332 case ir_unop_unpack_unorm_4x8
:
333 this->type
= glsl_type::vec4_type
;
336 case ir_unop_frexp_sig
:
337 this->type
= op0
->type
;
339 case ir_unop_frexp_exp
:
340 this->type
= glsl_type::get_instance(GLSL_TYPE_INT
,
341 op0
->type
->vector_elements
, 1);
345 assert(!"not reached: missing automatic type setup for ir_expression");
346 this->type
= op0
->type
;
351 ir_expression::ir_expression(int op
, ir_rvalue
*op0
, ir_rvalue
*op1
)
352 : ir_rvalue(ir_type_expression
)
354 this->operation
= ir_expression_operation(op
);
355 this->operands
[0] = op0
;
356 this->operands
[1] = op1
;
357 this->operands
[2] = NULL
;
358 this->operands
[3] = NULL
;
360 assert(op
> ir_last_unop
);
362 switch (this->operation
) {
363 case ir_binop_all_equal
:
364 case ir_binop_any_nequal
:
365 this->type
= glsl_type::bool_type
;
376 if (op0
->type
->is_scalar()) {
377 this->type
= op1
->type
;
378 } else if (op1
->type
->is_scalar()) {
379 this->type
= op0
->type
;
381 if (this->operation
== ir_binop_mul
) {
382 this->type
= glsl_type::get_mul_type(op0
->type
, op1
->type
);
384 assert(op0
->type
== op1
->type
);
385 this->type
= op0
->type
;
390 case ir_binop_logic_and
:
391 case ir_binop_logic_xor
:
392 case ir_binop_logic_or
:
393 case ir_binop_bit_and
:
394 case ir_binop_bit_xor
:
395 case ir_binop_bit_or
:
396 assert(!op0
->type
->is_matrix());
397 assert(!op1
->type
->is_matrix());
398 if (op0
->type
->is_scalar()) {
399 this->type
= op1
->type
;
400 } else if (op1
->type
->is_scalar()) {
401 this->type
= op0
->type
;
403 assert(op0
->type
->vector_elements
== op1
->type
->vector_elements
);
404 this->type
= op0
->type
;
409 case ir_binop_nequal
:
410 case ir_binop_lequal
:
411 case ir_binop_gequal
:
413 case ir_binop_greater
:
414 assert(op0
->type
== op1
->type
);
415 this->type
= glsl_type::get_instance(GLSL_TYPE_BOOL
,
416 op0
->type
->vector_elements
, 1);
420 this->type
= op0
->type
->get_base_type();
423 case ir_binop_pack_half_2x16_split
:
424 this->type
= glsl_type::uint_type
;
427 case ir_binop_imul_high
:
429 case ir_binop_borrow
:
430 case ir_binop_lshift
:
431 case ir_binop_rshift
:
434 case ir_binop_interpolate_at_offset
:
435 case ir_binop_interpolate_at_sample
:
436 this->type
= op0
->type
;
439 case ir_binop_vector_extract
:
440 this->type
= op0
->type
->get_scalar_type();
444 assert(!"not reached: missing automatic type setup for ir_expression");
445 this->type
= glsl_type::float_type
;
449 ir_expression::ir_expression(int op
, ir_rvalue
*op0
, ir_rvalue
*op1
,
451 : ir_rvalue(ir_type_expression
)
453 this->operation
= ir_expression_operation(op
);
454 this->operands
[0] = op0
;
455 this->operands
[1] = op1
;
456 this->operands
[2] = op2
;
457 this->operands
[3] = NULL
;
459 assert(op
> ir_last_binop
&& op
<= ir_last_triop
);
461 switch (this->operation
) {
464 case ir_triop_bitfield_extract
:
465 case ir_triop_vector_insert
:
466 this->type
= op0
->type
;
471 this->type
= op1
->type
;
475 assert(!"not reached: missing automatic type setup for ir_expression");
476 this->type
= glsl_type::float_type
;
481 ir_expression::get_num_operands(ir_expression_operation op
)
483 assert(op
<= ir_last_opcode
);
485 if (op
<= ir_last_unop
)
488 if (op
<= ir_last_binop
)
491 if (op
<= ir_last_triop
)
494 if (op
<= ir_last_quadop
)
501 static const char *const operator_strs
[] = {
559 "unpackHalf2x16_split_x",
560 "unpackHalf2x16_split_y",
571 "interpolate_at_centroid",
600 "packHalf2x16_split",
605 "interpolate_at_offset",
606 "interpolate_at_sample",
617 const char *ir_expression::operator_string(ir_expression_operation op
)
619 assert((unsigned int) op
< ARRAY_SIZE(operator_strs
));
620 assert(ARRAY_SIZE(operator_strs
) == (ir_quadop_vector
+ 1));
621 return operator_strs
[op
];
624 const char *ir_expression::operator_string()
626 return operator_string(this->operation
);
630 depth_layout_string(ir_depth_layout layout
)
633 case ir_depth_layout_none
: return "";
634 case ir_depth_layout_any
: return "depth_any";
635 case ir_depth_layout_greater
: return "depth_greater";
636 case ir_depth_layout_less
: return "depth_less";
637 case ir_depth_layout_unchanged
: return "depth_unchanged";
645 ir_expression_operation
646 ir_expression::get_operator(const char *str
)
648 const int operator_count
= sizeof(operator_strs
) / sizeof(operator_strs
[0]);
649 for (int op
= 0; op
< operator_count
; op
++) {
650 if (strcmp(str
, operator_strs
[op
]) == 0)
651 return (ir_expression_operation
) op
;
653 return (ir_expression_operation
) -1;
656 ir_constant::ir_constant()
657 : ir_rvalue(ir_type_constant
)
661 ir_constant::ir_constant(const struct glsl_type
*type
,
662 const ir_constant_data
*data
)
663 : ir_rvalue(ir_type_constant
)
665 assert((type
->base_type
>= GLSL_TYPE_UINT
)
666 && (type
->base_type
<= GLSL_TYPE_BOOL
));
669 memcpy(& this->value
, data
, sizeof(this->value
));
672 ir_constant::ir_constant(float f
, unsigned vector_elements
)
673 : ir_rvalue(ir_type_constant
)
675 assert(vector_elements
<= 4);
676 this->type
= glsl_type::get_instance(GLSL_TYPE_FLOAT
, vector_elements
, 1);
677 for (unsigned i
= 0; i
< vector_elements
; i
++) {
678 this->value
.f
[i
] = f
;
680 for (unsigned i
= vector_elements
; i
< 16; i
++) {
681 this->value
.f
[i
] = 0;
685 ir_constant::ir_constant(double d
, unsigned vector_elements
)
686 : ir_rvalue(ir_type_constant
)
688 assert(vector_elements
<= 4);
689 this->type
= glsl_type::get_instance(GLSL_TYPE_DOUBLE
, vector_elements
, 1);
690 for (unsigned i
= 0; i
< vector_elements
; i
++) {
691 this->value
.d
[i
] = d
;
693 for (unsigned i
= vector_elements
; i
< 16; i
++) {
694 this->value
.d
[i
] = 0.0;
698 ir_constant::ir_constant(unsigned int u
, unsigned vector_elements
)
699 : ir_rvalue(ir_type_constant
)
701 assert(vector_elements
<= 4);
702 this->type
= glsl_type::get_instance(GLSL_TYPE_UINT
, vector_elements
, 1);
703 for (unsigned i
= 0; i
< vector_elements
; i
++) {
704 this->value
.u
[i
] = u
;
706 for (unsigned i
= vector_elements
; i
< 16; i
++) {
707 this->value
.u
[i
] = 0;
711 ir_constant::ir_constant(int integer
, unsigned vector_elements
)
712 : ir_rvalue(ir_type_constant
)
714 assert(vector_elements
<= 4);
715 this->type
= glsl_type::get_instance(GLSL_TYPE_INT
, vector_elements
, 1);
716 for (unsigned i
= 0; i
< vector_elements
; i
++) {
717 this->value
.i
[i
] = integer
;
719 for (unsigned i
= vector_elements
; i
< 16; i
++) {
720 this->value
.i
[i
] = 0;
724 ir_constant::ir_constant(bool b
, unsigned vector_elements
)
725 : ir_rvalue(ir_type_constant
)
727 assert(vector_elements
<= 4);
728 this->type
= glsl_type::get_instance(GLSL_TYPE_BOOL
, vector_elements
, 1);
729 for (unsigned i
= 0; i
< vector_elements
; i
++) {
730 this->value
.b
[i
] = b
;
732 for (unsigned i
= vector_elements
; i
< 16; i
++) {
733 this->value
.b
[i
] = false;
737 ir_constant::ir_constant(const ir_constant
*c
, unsigned i
)
738 : ir_rvalue(ir_type_constant
)
740 this->type
= c
->type
->get_base_type();
742 switch (this->type
->base_type
) {
743 case GLSL_TYPE_UINT
: this->value
.u
[0] = c
->value
.u
[i
]; break;
744 case GLSL_TYPE_INT
: this->value
.i
[0] = c
->value
.i
[i
]; break;
745 case GLSL_TYPE_FLOAT
: this->value
.f
[0] = c
->value
.f
[i
]; break;
746 case GLSL_TYPE_BOOL
: this->value
.b
[0] = c
->value
.b
[i
]; break;
747 case GLSL_TYPE_DOUBLE
: this->value
.d
[0] = c
->value
.d
[i
]; break;
748 default: assert(!"Should not get here."); break;
752 ir_constant::ir_constant(const struct glsl_type
*type
, exec_list
*value_list
)
753 : ir_rvalue(ir_type_constant
)
757 assert(type
->is_scalar() || type
->is_vector() || type
->is_matrix()
758 || type
->is_record() || type
->is_array());
760 if (type
->is_array()) {
761 this->array_elements
= ralloc_array(this, ir_constant
*, type
->length
);
763 foreach_in_list(ir_constant
, value
, value_list
) {
764 assert(value
->as_constant() != NULL
);
766 this->array_elements
[i
++] = value
;
771 /* If the constant is a record, the types of each of the entries in
772 * value_list must be a 1-for-1 match with the structure components. Each
773 * entry must also be a constant. Just move the nodes from the value_list
774 * to the list in the ir_constant.
776 /* FINISHME: Should there be some type checking and / or assertions here? */
777 /* FINISHME: Should the new constant take ownership of the nodes from
778 * FINISHME: value_list, or should it make copies?
780 if (type
->is_record()) {
781 value_list
->move_nodes_to(& this->components
);
785 for (unsigned i
= 0; i
< 16; i
++) {
786 this->value
.u
[i
] = 0;
789 ir_constant
*value
= (ir_constant
*) (value_list
->head
);
791 /* Constructors with exactly one scalar argument are special for vectors
792 * and matrices. For vectors, the scalar value is replicated to fill all
793 * the components. For matrices, the scalar fills the components of the
794 * diagonal while the rest is filled with 0.
796 if (value
->type
->is_scalar() && value
->next
->is_tail_sentinel()) {
797 if (type
->is_matrix()) {
798 /* Matrix - fill diagonal (rest is already set to 0) */
799 assert(type
->base_type
== GLSL_TYPE_FLOAT
||
800 type
->base_type
== GLSL_TYPE_DOUBLE
);
801 for (unsigned i
= 0; i
< type
->matrix_columns
; i
++) {
802 if (type
->base_type
== GLSL_TYPE_FLOAT
)
803 this->value
.f
[i
* type
->vector_elements
+ i
] =
806 this->value
.d
[i
* type
->vector_elements
+ i
] =
810 /* Vector or scalar - fill all components */
811 switch (type
->base_type
) {
814 for (unsigned i
= 0; i
< type
->components(); i
++)
815 this->value
.u
[i
] = value
->value
.u
[0];
817 case GLSL_TYPE_FLOAT
:
818 for (unsigned i
= 0; i
< type
->components(); i
++)
819 this->value
.f
[i
] = value
->value
.f
[0];
821 case GLSL_TYPE_DOUBLE
:
822 for (unsigned i
= 0; i
< type
->components(); i
++)
823 this->value
.d
[i
] = value
->value
.d
[0];
826 for (unsigned i
= 0; i
< type
->components(); i
++)
827 this->value
.b
[i
] = value
->value
.b
[0];
830 assert(!"Should not get here.");
837 if (type
->is_matrix() && value
->type
->is_matrix()) {
838 assert(value
->next
->is_tail_sentinel());
840 /* From section 5.4.2 of the GLSL 1.20 spec:
841 * "If a matrix is constructed from a matrix, then each component
842 * (column i, row j) in the result that has a corresponding component
843 * (column i, row j) in the argument will be initialized from there."
845 unsigned cols
= MIN2(type
->matrix_columns
, value
->type
->matrix_columns
);
846 unsigned rows
= MIN2(type
->vector_elements
, value
->type
->vector_elements
);
847 for (unsigned i
= 0; i
< cols
; i
++) {
848 for (unsigned j
= 0; j
< rows
; j
++) {
849 const unsigned src
= i
* value
->type
->vector_elements
+ j
;
850 const unsigned dst
= i
* type
->vector_elements
+ j
;
851 this->value
.f
[dst
] = value
->value
.f
[src
];
855 /* "All other components will be initialized to the identity matrix." */
856 for (unsigned i
= cols
; i
< type
->matrix_columns
; i
++)
857 this->value
.f
[i
* type
->vector_elements
+ i
] = 1.0;
862 /* Use each component from each entry in the value_list to initialize one
863 * component of the constant being constructed.
865 for (unsigned i
= 0; i
< type
->components(); /* empty */) {
866 assert(value
->as_constant() != NULL
);
867 assert(!value
->is_tail_sentinel());
869 for (unsigned j
= 0; j
< value
->type
->components(); j
++) {
870 switch (type
->base_type
) {
872 this->value
.u
[i
] = value
->get_uint_component(j
);
875 this->value
.i
[i
] = value
->get_int_component(j
);
877 case GLSL_TYPE_FLOAT
:
878 this->value
.f
[i
] = value
->get_float_component(j
);
881 this->value
.b
[i
] = value
->get_bool_component(j
);
883 case GLSL_TYPE_DOUBLE
:
884 this->value
.d
[i
] = value
->get_double_component(j
);
887 /* FINISHME: What to do? Exceptions are not the answer.
893 if (i
>= type
->components())
897 value
= (ir_constant
*) value
->next
;
902 ir_constant::zero(void *mem_ctx
, const glsl_type
*type
)
904 assert(type
->is_scalar() || type
->is_vector() || type
->is_matrix()
905 || type
->is_record() || type
->is_array());
907 ir_constant
*c
= new(mem_ctx
) ir_constant
;
909 memset(&c
->value
, 0, sizeof(c
->value
));
911 if (type
->is_array()) {
912 c
->array_elements
= ralloc_array(c
, ir_constant
*, type
->length
);
914 for (unsigned i
= 0; i
< type
->length
; i
++)
915 c
->array_elements
[i
] = ir_constant::zero(c
, type
->fields
.array
);
918 if (type
->is_record()) {
919 for (unsigned i
= 0; i
< type
->length
; i
++) {
920 ir_constant
*comp
= ir_constant::zero(mem_ctx
, type
->fields
.structure
[i
].type
);
921 c
->components
.push_tail(comp
);
929 ir_constant::get_bool_component(unsigned i
) const
931 switch (this->type
->base_type
) {
932 case GLSL_TYPE_UINT
: return this->value
.u
[i
] != 0;
933 case GLSL_TYPE_INT
: return this->value
.i
[i
] != 0;
934 case GLSL_TYPE_FLOAT
: return ((int)this->value
.f
[i
]) != 0;
935 case GLSL_TYPE_BOOL
: return this->value
.b
[i
];
936 case GLSL_TYPE_DOUBLE
: return this->value
.d
[i
] != 0.0;
937 default: assert(!"Should not get here."); break;
940 /* Must return something to make the compiler happy. This is clearly an
947 ir_constant::get_float_component(unsigned i
) const
949 switch (this->type
->base_type
) {
950 case GLSL_TYPE_UINT
: return (float) this->value
.u
[i
];
951 case GLSL_TYPE_INT
: return (float) this->value
.i
[i
];
952 case GLSL_TYPE_FLOAT
: return this->value
.f
[i
];
953 case GLSL_TYPE_BOOL
: return this->value
.b
[i
] ? 1.0f
: 0.0f
;
954 case GLSL_TYPE_DOUBLE
: return (float) this->value
.d
[i
];
955 default: assert(!"Should not get here."); break;
958 /* Must return something to make the compiler happy. This is clearly an
965 ir_constant::get_double_component(unsigned i
) const
967 switch (this->type
->base_type
) {
968 case GLSL_TYPE_UINT
: return (double) this->value
.u
[i
];
969 case GLSL_TYPE_INT
: return (double) this->value
.i
[i
];
970 case GLSL_TYPE_FLOAT
: return (double) this->value
.f
[i
];
971 case GLSL_TYPE_BOOL
: return this->value
.b
[i
] ? 1.0 : 0.0;
972 case GLSL_TYPE_DOUBLE
: return this->value
.d
[i
];
973 default: assert(!"Should not get here."); break;
976 /* Must return something to make the compiler happy. This is clearly an
983 ir_constant::get_int_component(unsigned i
) const
985 switch (this->type
->base_type
) {
986 case GLSL_TYPE_UINT
: return this->value
.u
[i
];
987 case GLSL_TYPE_INT
: return this->value
.i
[i
];
988 case GLSL_TYPE_FLOAT
: return (int) this->value
.f
[i
];
989 case GLSL_TYPE_BOOL
: return this->value
.b
[i
] ? 1 : 0;
990 case GLSL_TYPE_DOUBLE
: return (int) this->value
.d
[i
];
991 default: assert(!"Should not get here."); break;
994 /* Must return something to make the compiler happy. This is clearly an
1001 ir_constant::get_uint_component(unsigned i
) const
1003 switch (this->type
->base_type
) {
1004 case GLSL_TYPE_UINT
: return this->value
.u
[i
];
1005 case GLSL_TYPE_INT
: return this->value
.i
[i
];
1006 case GLSL_TYPE_FLOAT
: return (unsigned) this->value
.f
[i
];
1007 case GLSL_TYPE_BOOL
: return this->value
.b
[i
] ? 1 : 0;
1008 case GLSL_TYPE_DOUBLE
: return (unsigned) this->value
.d
[i
];
1009 default: assert(!"Should not get here."); break;
1012 /* Must return something to make the compiler happy. This is clearly an
1019 ir_constant::get_array_element(unsigned i
) const
1021 assert(this->type
->is_array());
1023 /* From page 35 (page 41 of the PDF) of the GLSL 1.20 spec:
1025 * "Behavior is undefined if a shader subscripts an array with an index
1026 * less than 0 or greater than or equal to the size the array was
1029 * Most out-of-bounds accesses are removed before things could get this far.
1030 * There are cases where non-constant array index values can get constant
1035 else if (i
>= this->type
->length
)
1036 i
= this->type
->length
- 1;
1038 return array_elements
[i
];
1042 ir_constant::get_record_field(const char *name
)
1044 int idx
= this->type
->field_index(name
);
1049 if (this->components
.is_empty())
1052 exec_node
*node
= this->components
.head
;
1053 for (int i
= 0; i
< idx
; i
++) {
1056 /* If the end of the list is encountered before the element matching the
1057 * requested field is found, return NULL.
1059 if (node
->is_tail_sentinel())
1063 return (ir_constant
*) node
;
1067 ir_constant::copy_offset(ir_constant
*src
, int offset
)
1069 switch (this->type
->base_type
) {
1070 case GLSL_TYPE_UINT
:
1072 case GLSL_TYPE_FLOAT
:
1073 case GLSL_TYPE_DOUBLE
:
1074 case GLSL_TYPE_BOOL
: {
1075 unsigned int size
= src
->type
->components();
1076 assert (size
<= this->type
->components() - offset
);
1077 for (unsigned int i
=0; i
<size
; i
++) {
1078 switch (this->type
->base_type
) {
1079 case GLSL_TYPE_UINT
:
1080 value
.u
[i
+offset
] = src
->get_uint_component(i
);
1083 value
.i
[i
+offset
] = src
->get_int_component(i
);
1085 case GLSL_TYPE_FLOAT
:
1086 value
.f
[i
+offset
] = src
->get_float_component(i
);
1088 case GLSL_TYPE_BOOL
:
1089 value
.b
[i
+offset
] = src
->get_bool_component(i
);
1091 case GLSL_TYPE_DOUBLE
:
1092 value
.d
[i
+offset
] = src
->get_double_component(i
);
1094 default: // Shut up the compiler
1101 case GLSL_TYPE_STRUCT
: {
1102 assert (src
->type
== this->type
);
1103 this->components
.make_empty();
1104 foreach_in_list(ir_constant
, orig
, &src
->components
) {
1105 this->components
.push_tail(orig
->clone(this, NULL
));
1110 case GLSL_TYPE_ARRAY
: {
1111 assert (src
->type
== this->type
);
1112 for (unsigned i
= 0; i
< this->type
->length
; i
++) {
1113 this->array_elements
[i
] = src
->array_elements
[i
]->clone(this, NULL
);
1119 assert(!"Should not get here.");
1125 ir_constant::copy_masked_offset(ir_constant
*src
, int offset
, unsigned int mask
)
1127 assert (!type
->is_array() && !type
->is_record());
1129 if (!type
->is_vector() && !type
->is_matrix()) {
1135 for (int i
=0; i
<4; i
++) {
1136 if (mask
& (1 << i
)) {
1137 switch (this->type
->base_type
) {
1138 case GLSL_TYPE_UINT
:
1139 value
.u
[i
+offset
] = src
->get_uint_component(id
++);
1142 value
.i
[i
+offset
] = src
->get_int_component(id
++);
1144 case GLSL_TYPE_FLOAT
:
1145 value
.f
[i
+offset
] = src
->get_float_component(id
++);
1147 case GLSL_TYPE_BOOL
:
1148 value
.b
[i
+offset
] = src
->get_bool_component(id
++);
1150 case GLSL_TYPE_DOUBLE
:
1151 value
.d
[i
+offset
] = src
->get_double_component(id
++);
1154 assert(!"Should not get here.");
1162 ir_constant::has_value(const ir_constant
*c
) const
1164 if (this->type
!= c
->type
)
1167 if (this->type
->is_array()) {
1168 for (unsigned i
= 0; i
< this->type
->length
; i
++) {
1169 if (!this->array_elements
[i
]->has_value(c
->array_elements
[i
]))
1175 if (this->type
->base_type
== GLSL_TYPE_STRUCT
) {
1176 const exec_node
*a_node
= this->components
.head
;
1177 const exec_node
*b_node
= c
->components
.head
;
1179 while (!a_node
->is_tail_sentinel()) {
1180 assert(!b_node
->is_tail_sentinel());
1182 const ir_constant
*const a_field
= (ir_constant
*) a_node
;
1183 const ir_constant
*const b_field
= (ir_constant
*) b_node
;
1185 if (!a_field
->has_value(b_field
))
1188 a_node
= a_node
->next
;
1189 b_node
= b_node
->next
;
1195 for (unsigned i
= 0; i
< this->type
->components(); i
++) {
1196 switch (this->type
->base_type
) {
1197 case GLSL_TYPE_UINT
:
1198 if (this->value
.u
[i
] != c
->value
.u
[i
])
1202 if (this->value
.i
[i
] != c
->value
.i
[i
])
1205 case GLSL_TYPE_FLOAT
:
1206 if (this->value
.f
[i
] != c
->value
.f
[i
])
1209 case GLSL_TYPE_BOOL
:
1210 if (this->value
.b
[i
] != c
->value
.b
[i
])
1213 case GLSL_TYPE_DOUBLE
:
1214 if (this->value
.d
[i
] != c
->value
.d
[i
])
1218 assert(!"Should not get here.");
1227 ir_constant::is_value(float f
, int i
) const
1229 if (!this->type
->is_scalar() && !this->type
->is_vector())
1232 /* Only accept boolean values for 0/1. */
1233 if (int(bool(i
)) != i
&& this->type
->is_boolean())
1236 for (unsigned c
= 0; c
< this->type
->vector_elements
; c
++) {
1237 switch (this->type
->base_type
) {
1238 case GLSL_TYPE_FLOAT
:
1239 if (this->value
.f
[c
] != f
)
1243 if (this->value
.i
[c
] != i
)
1246 case GLSL_TYPE_UINT
:
1247 if (this->value
.u
[c
] != unsigned(i
))
1250 case GLSL_TYPE_BOOL
:
1251 if (this->value
.b
[c
] != bool(i
))
1254 case GLSL_TYPE_DOUBLE
:
1255 if (this->value
.d
[c
] != double(f
))
1259 /* The only other base types are structures, arrays, and samplers.
1260 * Samplers cannot be constants, and the others should have been
1261 * filtered out above.
1263 assert(!"Should not get here.");
1272 ir_constant::is_zero() const
1274 return is_value(0.0, 0);
1278 ir_constant::is_one() const
1280 return is_value(1.0, 1);
1284 ir_constant::is_negative_one() const
1286 return is_value(-1.0, -1);
1290 ir_constant::is_uint16_constant() const
1292 if (!type
->is_integer())
1295 return value
.u
[0] < (1 << 16);
1299 : ir_instruction(ir_type_loop
)
1304 ir_dereference_variable::ir_dereference_variable(ir_variable
*var
)
1305 : ir_dereference(ir_type_dereference_variable
)
1307 assert(var
!= NULL
);
1310 this->type
= var
->type
;
1314 ir_dereference_array::ir_dereference_array(ir_rvalue
*value
,
1315 ir_rvalue
*array_index
)
1316 : ir_dereference(ir_type_dereference_array
)
1318 this->array_index
= array_index
;
1319 this->set_array(value
);
1323 ir_dereference_array::ir_dereference_array(ir_variable
*var
,
1324 ir_rvalue
*array_index
)
1325 : ir_dereference(ir_type_dereference_array
)
1327 void *ctx
= ralloc_parent(var
);
1329 this->array_index
= array_index
;
1330 this->set_array(new(ctx
) ir_dereference_variable(var
));
1335 ir_dereference_array::set_array(ir_rvalue
*value
)
1337 assert(value
!= NULL
);
1339 this->array
= value
;
1341 const glsl_type
*const vt
= this->array
->type
;
1343 if (vt
->is_array()) {
1344 type
= vt
->fields
.array
;
1345 } else if (vt
->is_matrix()) {
1346 type
= vt
->column_type();
1347 } else if (vt
->is_vector()) {
1348 type
= vt
->get_base_type();
1353 ir_dereference_record::ir_dereference_record(ir_rvalue
*value
,
1355 : ir_dereference(ir_type_dereference_record
)
1357 assert(value
!= NULL
);
1359 this->record
= value
;
1360 this->field
= ralloc_strdup(this, field
);
1361 this->type
= this->record
->type
->field_type(field
);
1365 ir_dereference_record::ir_dereference_record(ir_variable
*var
,
1367 : ir_dereference(ir_type_dereference_record
)
1369 void *ctx
= ralloc_parent(var
);
1371 this->record
= new(ctx
) ir_dereference_variable(var
);
1372 this->field
= ralloc_strdup(this, field
);
1373 this->type
= this->record
->type
->field_type(field
);
1377 ir_dereference::is_lvalue() const
1379 ir_variable
*var
= this->variable_referenced();
1381 /* Every l-value derference chain eventually ends in a variable.
1383 if ((var
== NULL
) || var
->data
.read_only
)
1386 /* From section 4.1.7 of the GLSL 4.40 spec:
1388 * "Opaque variables cannot be treated as l-values; hence cannot
1389 * be used as out or inout function parameters, nor can they be
1392 if (this->type
->contains_opaque())
1399 static const char * const tex_opcode_strs
[] = { "tex", "txb", "txl", "txd", "txf", "txf_ms", "txs", "lod", "tg4", "query_levels" };
1401 const char *ir_texture::opcode_string()
1403 assert((unsigned int) op
<=
1404 sizeof(tex_opcode_strs
) / sizeof(tex_opcode_strs
[0]));
1405 return tex_opcode_strs
[op
];
1409 ir_texture::get_opcode(const char *str
)
1411 const int count
= sizeof(tex_opcode_strs
) / sizeof(tex_opcode_strs
[0]);
1412 for (int op
= 0; op
< count
; op
++) {
1413 if (strcmp(str
, tex_opcode_strs
[op
]) == 0)
1414 return (ir_texture_opcode
) op
;
1416 return (ir_texture_opcode
) -1;
1421 ir_texture::set_sampler(ir_dereference
*sampler
, const glsl_type
*type
)
1423 assert(sampler
!= NULL
);
1424 assert(type
!= NULL
);
1425 this->sampler
= sampler
;
1428 if (this->op
== ir_txs
|| this->op
== ir_query_levels
) {
1429 assert(type
->base_type
== GLSL_TYPE_INT
);
1430 } else if (this->op
== ir_lod
) {
1431 assert(type
->vector_elements
== 2);
1432 assert(type
->base_type
== GLSL_TYPE_FLOAT
);
1434 assert(sampler
->type
->sampler_type
== (int) type
->base_type
);
1435 if (sampler
->type
->sampler_shadow
)
1436 assert(type
->vector_elements
== 4 || type
->vector_elements
== 1);
1438 assert(type
->vector_elements
== 4);
1444 ir_swizzle::init_mask(const unsigned *comp
, unsigned count
)
1446 assert((count
>= 1) && (count
<= 4));
1448 memset(&this->mask
, 0, sizeof(this->mask
));
1449 this->mask
.num_components
= count
;
1451 unsigned dup_mask
= 0;
1454 assert(comp
[3] <= 3);
1455 dup_mask
|= (1U << comp
[3])
1456 & ((1U << comp
[0]) | (1U << comp
[1]) | (1U << comp
[2]));
1457 this->mask
.w
= comp
[3];
1460 assert(comp
[2] <= 3);
1461 dup_mask
|= (1U << comp
[2])
1462 & ((1U << comp
[0]) | (1U << comp
[1]));
1463 this->mask
.z
= comp
[2];
1466 assert(comp
[1] <= 3);
1467 dup_mask
|= (1U << comp
[1])
1468 & ((1U << comp
[0]));
1469 this->mask
.y
= comp
[1];
1472 assert(comp
[0] <= 3);
1473 this->mask
.x
= comp
[0];
1476 this->mask
.has_duplicates
= dup_mask
!= 0;
1478 /* Based on the number of elements in the swizzle and the base type
1479 * (i.e., float, int, unsigned, or bool) of the vector being swizzled,
1480 * generate the type of the resulting value.
1482 type
= glsl_type::get_instance(val
->type
->base_type
, mask
.num_components
, 1);
1485 ir_swizzle::ir_swizzle(ir_rvalue
*val
, unsigned x
, unsigned y
, unsigned z
,
1486 unsigned w
, unsigned count
)
1487 : ir_rvalue(ir_type_swizzle
), val(val
)
1489 const unsigned components
[4] = { x
, y
, z
, w
};
1490 this->init_mask(components
, count
);
1493 ir_swizzle::ir_swizzle(ir_rvalue
*val
, const unsigned *comp
,
1495 : ir_rvalue(ir_type_swizzle
), val(val
)
1497 this->init_mask(comp
, count
);
1500 ir_swizzle::ir_swizzle(ir_rvalue
*val
, ir_swizzle_mask mask
)
1501 : ir_rvalue(ir_type_swizzle
)
1505 this->type
= glsl_type::get_instance(val
->type
->base_type
,
1506 mask
.num_components
, 1);
1515 ir_swizzle::create(ir_rvalue
*val
, const char *str
, unsigned vector_length
)
1517 void *ctx
= ralloc_parent(val
);
1519 /* For each possible swizzle character, this table encodes the value in
1520 * \c idx_map that represents the 0th element of the vector. For invalid
1521 * swizzle characters (e.g., 'k'), a special value is used that will allow
1522 * detection of errors.
1524 static const unsigned char base_idx
[26] = {
1525 /* a b c d e f g h i j k l m */
1526 R
, R
, I
, I
, I
, I
, R
, I
, I
, I
, I
, I
, I
,
1527 /* n o p q r s t u v w x y z */
1528 I
, I
, S
, S
, R
, S
, S
, I
, I
, X
, X
, X
, X
1531 /* Each valid swizzle character has an entry in the previous table. This
1532 * table encodes the base index encoded in the previous table plus the actual
1533 * index of the swizzle character. When processing swizzles, the first
1534 * character in the string is indexed in the previous table. Each character
1535 * in the string is indexed in this table, and the value found there has the
1536 * value form the first table subtracted. The result must be on the range
1539 * For example, the string "wzyx" will get X from the first table. Each of
1540 * the charcaters will get X+3, X+2, X+1, and X+0 from this table. After
1541 * subtraction, the swizzle values are { 3, 2, 1, 0 }.
1543 * The string "wzrg" will get X from the first table. Each of the characters
1544 * will get X+3, X+2, R+0, and R+1 from this table. After subtraction, the
1545 * swizzle values are { 3, 2, 4, 5 }. Since 4 and 5 are outside the range
1546 * [0,3], the error is detected.
1548 static const unsigned char idx_map
[26] = {
1549 /* a b c d e f g h i j k l m */
1550 R
+3, R
+2, 0, 0, 0, 0, R
+1, 0, 0, 0, 0, 0, 0,
1551 /* n o p q r s t u v w x y z */
1552 0, 0, S
+2, S
+3, R
+0, S
+0, S
+1, 0, 0, X
+3, X
+0, X
+1, X
+2
1555 int swiz_idx
[4] = { 0, 0, 0, 0 };
1559 /* Validate the first character in the swizzle string and look up the base
1560 * index value as described above.
1562 if ((str
[0] < 'a') || (str
[0] > 'z'))
1565 const unsigned base
= base_idx
[str
[0] - 'a'];
1568 for (i
= 0; (i
< 4) && (str
[i
] != '\0'); i
++) {
1569 /* Validate the next character, and, as described above, convert it to a
1572 if ((str
[i
] < 'a') || (str
[i
] > 'z'))
1575 swiz_idx
[i
] = idx_map
[str
[i
] - 'a'] - base
;
1576 if ((swiz_idx
[i
] < 0) || (swiz_idx
[i
] >= (int) vector_length
))
1583 return new(ctx
) ir_swizzle(val
, swiz_idx
[0], swiz_idx
[1], swiz_idx
[2],
1593 ir_swizzle::variable_referenced() const
1595 return this->val
->variable_referenced();
1599 bool ir_variable::temporaries_allocate_names
= false;
1601 const char ir_variable::tmp_name
[] = "compiler_temp";
1603 ir_variable::ir_variable(const struct glsl_type
*type
, const char *name
,
1604 ir_variable_mode mode
)
1605 : ir_instruction(ir_type_variable
)
1609 if (mode
== ir_var_temporary
&& !ir_variable::temporaries_allocate_names
)
1612 /* The ir_variable clone method may call this constructor with name set to
1616 || mode
== ir_var_temporary
1617 || mode
== ir_var_function_in
1618 || mode
== ir_var_function_out
1619 || mode
== ir_var_function_inout
);
1620 assert(name
!= ir_variable::tmp_name
1621 || mode
== ir_var_temporary
);
1622 if (mode
== ir_var_temporary
1623 && (name
== NULL
|| name
== ir_variable::tmp_name
)) {
1624 this->name
= ir_variable::tmp_name
;
1626 this->name
= ralloc_strdup(this, name
);
1629 this->u
.max_ifc_array_access
= NULL
;
1631 this->data
.explicit_location
= false;
1632 this->data
.has_initializer
= false;
1633 this->data
.location
= -1;
1634 this->data
.location_frac
= 0;
1635 this->data
.binding
= 0;
1636 this->data
.warn_extension_index
= 0;
1637 this->constant_value
= NULL
;
1638 this->constant_initializer
= NULL
;
1639 this->data
.origin_upper_left
= false;
1640 this->data
.pixel_center_integer
= false;
1641 this->data
.depth_layout
= ir_depth_layout_none
;
1642 this->data
.used
= false;
1643 this->data
.read_only
= false;
1644 this->data
.centroid
= false;
1645 this->data
.sample
= false;
1646 this->data
.invariant
= false;
1647 this->data
.how_declared
= ir_var_declared_normally
;
1648 this->data
.mode
= mode
;
1649 this->data
.interpolation
= INTERP_QUALIFIER_NONE
;
1650 this->data
.max_array_access
= 0;
1651 this->data
.atomic
.offset
= 0;
1652 this->data
.image_read_only
= false;
1653 this->data
.image_write_only
= false;
1654 this->data
.image_coherent
= false;
1655 this->data
.image_volatile
= false;
1656 this->data
.image_restrict
= false;
1659 if (type
->base_type
== GLSL_TYPE_SAMPLER
)
1660 this->data
.read_only
= true;
1662 if (type
->is_interface())
1663 this->init_interface_type(type
);
1664 else if (type
->is_array() && type
->fields
.array
->is_interface())
1665 this->init_interface_type(type
->fields
.array
);
1671 interpolation_string(unsigned interpolation
)
1673 switch (interpolation
) {
1674 case INTERP_QUALIFIER_NONE
: return "no";
1675 case INTERP_QUALIFIER_SMOOTH
: return "smooth";
1676 case INTERP_QUALIFIER_FLAT
: return "flat";
1677 case INTERP_QUALIFIER_NOPERSPECTIVE
: return "noperspective";
1680 assert(!"Should not get here.");
1685 glsl_interp_qualifier
1686 ir_variable::determine_interpolation_mode(bool flat_shade
)
1688 if (this->data
.interpolation
!= INTERP_QUALIFIER_NONE
)
1689 return (glsl_interp_qualifier
) this->data
.interpolation
;
1690 int location
= this->data
.location
;
1692 location
== VARYING_SLOT_COL0
|| location
== VARYING_SLOT_COL1
;
1693 if (flat_shade
&& is_gl_Color
)
1694 return INTERP_QUALIFIER_FLAT
;
1696 return INTERP_QUALIFIER_SMOOTH
;
1699 const char *const ir_variable::warn_extension_table
[] = {
1701 "GL_ARB_shader_stencil_export",
1702 "GL_AMD_shader_stencil_export",
1706 ir_variable::enable_extension_warning(const char *extension
)
1708 for (unsigned i
= 0; i
< ARRAY_SIZE(warn_extension_table
); i
++) {
1709 if (strcmp(warn_extension_table
[i
], extension
) == 0) {
1710 this->data
.warn_extension_index
= i
;
1715 assert(!"Should not get here.");
1716 this->data
.warn_extension_index
= 0;
1720 ir_variable::get_extension_warning() const
1722 return this->data
.warn_extension_index
== 0
1723 ? NULL
: warn_extension_table
[this->data
.warn_extension_index
];
1726 ir_function_signature::ir_function_signature(const glsl_type
*return_type
,
1727 builtin_available_predicate b
)
1728 : ir_instruction(ir_type_function_signature
),
1729 return_type(return_type
), is_defined(false), is_intrinsic(false),
1730 builtin_avail(b
), _function(NULL
)
1732 this->origin
= NULL
;
1737 ir_function_signature::is_builtin() const
1739 return builtin_avail
!= NULL
;
1744 ir_function_signature::is_builtin_available(const _mesa_glsl_parse_state
*state
) const
1746 /* We can't call the predicate without a state pointer, so just say that
1747 * the signature is available. At compile time, we need the filtering,
1748 * but also receive a valid state pointer. At link time, we're resolving
1749 * imported built-in prototypes to their definitions, which will always
1750 * be an exact match. So we can skip the filtering.
1755 assert(builtin_avail
!= NULL
);
1756 return builtin_avail(state
);
1761 modes_match(unsigned a
, unsigned b
)
1766 /* Accept "in" vs. "const in" */
1767 if ((a
== ir_var_const_in
&& b
== ir_var_function_in
) ||
1768 (b
== ir_var_const_in
&& a
== ir_var_function_in
))
1776 ir_function_signature::qualifiers_match(exec_list
*params
)
1778 /* check that the qualifiers match. */
1779 foreach_two_lists(a_node
, &this->parameters
, b_node
, params
) {
1780 ir_variable
*a
= (ir_variable
*) a_node
;
1781 ir_variable
*b
= (ir_variable
*) b_node
;
1783 if (a
->data
.read_only
!= b
->data
.read_only
||
1784 !modes_match(a
->data
.mode
, b
->data
.mode
) ||
1785 a
->data
.interpolation
!= b
->data
.interpolation
||
1786 a
->data
.centroid
!= b
->data
.centroid
||
1787 a
->data
.sample
!= b
->data
.sample
||
1788 a
->data
.image_read_only
!= b
->data
.image_read_only
||
1789 a
->data
.image_write_only
!= b
->data
.image_write_only
||
1790 a
->data
.image_coherent
!= b
->data
.image_coherent
||
1791 a
->data
.image_volatile
!= b
->data
.image_volatile
||
1792 a
->data
.image_restrict
!= b
->data
.image_restrict
) {
1794 /* parameter a's qualifiers don't match */
1803 ir_function_signature::replace_parameters(exec_list
*new_params
)
1805 /* Destroy all of the previous parameter information. If the previous
1806 * parameter information comes from the function prototype, it may either
1807 * specify incorrect parameter names or not have names at all.
1809 new_params
->move_nodes_to(¶meters
);
1813 ir_function::ir_function(const char *name
)
1814 : ir_instruction(ir_type_function
)
1816 this->name
= ralloc_strdup(this, name
);
1821 ir_function::has_user_signature()
1823 foreach_in_list(ir_function_signature
, sig
, &this->signatures
) {
1824 if (!sig
->is_builtin())
1832 ir_rvalue::error_value(void *mem_ctx
)
1834 ir_rvalue
*v
= new(mem_ctx
) ir_rvalue(ir_type_unset
);
1836 v
->type
= glsl_type::error_type
;
1842 visit_exec_list(exec_list
*list
, ir_visitor
*visitor
)
1844 foreach_in_list_safe(ir_instruction
, node
, list
) {
1845 node
->accept(visitor
);
1851 steal_memory(ir_instruction
*ir
, void *new_ctx
)
1853 ir_variable
*var
= ir
->as_variable();
1854 ir_constant
*constant
= ir
->as_constant();
1855 if (var
!= NULL
&& var
->constant_value
!= NULL
)
1856 steal_memory(var
->constant_value
, ir
);
1858 if (var
!= NULL
&& var
->constant_initializer
!= NULL
)
1859 steal_memory(var
->constant_initializer
, ir
);
1861 /* The components of aggregate constants are not visited by the normal
1862 * visitor, so steal their values by hand.
1864 if (constant
!= NULL
) {
1865 if (constant
->type
->is_record()) {
1866 foreach_in_list(ir_constant
, field
, &constant
->components
) {
1867 steal_memory(field
, ir
);
1869 } else if (constant
->type
->is_array()) {
1870 for (unsigned int i
= 0; i
< constant
->type
->length
; i
++) {
1871 steal_memory(constant
->array_elements
[i
], ir
);
1876 ralloc_steal(new_ctx
, ir
);
1881 reparent_ir(exec_list
*list
, void *mem_ctx
)
1883 foreach_in_list(ir_instruction
, node
, list
) {
1884 visit_tree(node
, steal_memory
, mem_ctx
);
1890 try_min_one(ir_rvalue
*ir
)
1892 ir_expression
*expr
= ir
->as_expression();
1894 if (!expr
|| expr
->operation
!= ir_binop_min
)
1897 if (expr
->operands
[0]->is_one())
1898 return expr
->operands
[1];
1900 if (expr
->operands
[1]->is_one())
1901 return expr
->operands
[0];
1907 try_max_zero(ir_rvalue
*ir
)
1909 ir_expression
*expr
= ir
->as_expression();
1911 if (!expr
|| expr
->operation
!= ir_binop_max
)
1914 if (expr
->operands
[0]->is_zero())
1915 return expr
->operands
[1];
1917 if (expr
->operands
[1]->is_zero())
1918 return expr
->operands
[0];
1924 ir_rvalue::as_rvalue_to_saturate()
1926 ir_expression
*expr
= this->as_expression();
1931 ir_rvalue
*max_zero
= try_max_zero(expr
);
1933 return try_min_one(max_zero
);
1935 ir_rvalue
*min_one
= try_min_one(expr
);
1937 return try_max_zero(min_one
);
1946 vertices_per_prim(GLenum prim
)
1955 case GL_LINES_ADJACENCY
:
1957 case GL_TRIANGLES_ADJACENCY
:
1960 assert(!"Bad primitive");
1966 * Generate a string describing the mode of a variable
1969 mode_string(const ir_variable
*var
)
1971 switch (var
->data
.mode
) {
1973 return (var
->data
.read_only
) ? "global constant" : "global variable";
1975 case ir_var_uniform
:
1978 case ir_var_shader_storage
:
1981 case ir_var_shader_in
:
1982 return "shader input";
1984 case ir_var_shader_out
:
1985 return "shader output";
1987 case ir_var_function_in
:
1988 case ir_var_const_in
:
1989 return "function input";
1991 case ir_var_function_out
:
1992 return "function output";
1994 case ir_var_function_inout
:
1995 return "function inout";
1997 case ir_var_system_value
:
1998 return "shader input";
2000 case ir_var_temporary
:
2001 return "compiler temporary";
2003 case ir_var_mode_count
:
2007 assert(!"Should not get here.");
2008 return "invalid variable";