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
:
243 case ir_unop_sin_reduced
:
244 case ir_unop_cos_reduced
:
246 case ir_unop_dFdx_coarse
:
247 case ir_unop_dFdx_fine
:
249 case ir_unop_dFdy_coarse
:
250 case ir_unop_dFdy_fine
:
251 case ir_unop_bitfield_reverse
:
252 case ir_unop_interpolate_at_centroid
:
253 case ir_unop_saturate
:
254 this->type
= op0
->type
;
261 case ir_unop_bitcast_f2i
:
262 case ir_unop_bit_count
:
263 case ir_unop_find_msb
:
264 case ir_unop_find_lsb
:
265 this->type
= glsl_type::get_instance(GLSL_TYPE_INT
,
266 op0
->type
->vector_elements
, 1);
273 case ir_unop_bitcast_i2f
:
274 case ir_unop_bitcast_u2f
:
275 this->type
= glsl_type::get_instance(GLSL_TYPE_FLOAT
,
276 op0
->type
->vector_elements
, 1);
282 this->type
= glsl_type::get_instance(GLSL_TYPE_BOOL
,
283 op0
->type
->vector_elements
, 1);
289 this->type
= glsl_type::get_instance(GLSL_TYPE_DOUBLE
,
290 op0
->type
->vector_elements
, 1);
296 case ir_unop_bitcast_f2u
:
297 this->type
= glsl_type::get_instance(GLSL_TYPE_UINT
,
298 op0
->type
->vector_elements
, 1);
302 case ir_unop_unpack_half_2x16_split_x
:
303 case ir_unop_unpack_half_2x16_split_y
:
304 this->type
= glsl_type::float_type
;
307 case ir_unop_unpack_double_2x32
:
308 this->type
= glsl_type::uvec2_type
;
312 this->type
= glsl_type::bool_type
;
315 case ir_unop_pack_snorm_2x16
:
316 case ir_unop_pack_snorm_4x8
:
317 case ir_unop_pack_unorm_2x16
:
318 case ir_unop_pack_unorm_4x8
:
319 case ir_unop_pack_half_2x16
:
320 this->type
= glsl_type::uint_type
;
323 case ir_unop_pack_double_2x32
:
324 this->type
= glsl_type::double_type
;
327 case ir_unop_unpack_snorm_2x16
:
328 case ir_unop_unpack_unorm_2x16
:
329 case ir_unop_unpack_half_2x16
:
330 this->type
= glsl_type::vec2_type
;
333 case ir_unop_unpack_snorm_4x8
:
334 case ir_unop_unpack_unorm_4x8
:
335 this->type
= glsl_type::vec4_type
;
338 case ir_unop_frexp_sig
:
339 this->type
= op0
->type
;
341 case ir_unop_frexp_exp
:
342 this->type
= glsl_type::get_instance(GLSL_TYPE_INT
,
343 op0
->type
->vector_elements
, 1);
347 assert(!"not reached: missing automatic type setup for ir_expression");
348 this->type
= op0
->type
;
353 ir_expression::ir_expression(int op
, ir_rvalue
*op0
, ir_rvalue
*op1
)
354 : ir_rvalue(ir_type_expression
)
356 this->operation
= ir_expression_operation(op
);
357 this->operands
[0] = op0
;
358 this->operands
[1] = op1
;
359 this->operands
[2] = NULL
;
360 this->operands
[3] = NULL
;
362 assert(op
> ir_last_unop
);
364 switch (this->operation
) {
365 case ir_binop_all_equal
:
366 case ir_binop_any_nequal
:
367 this->type
= glsl_type::bool_type
;
378 if (op0
->type
->is_scalar()) {
379 this->type
= op1
->type
;
380 } else if (op1
->type
->is_scalar()) {
381 this->type
= op0
->type
;
383 /* FINISHME: matrix types */
384 assert(!op0
->type
->is_matrix() && !op1
->type
->is_matrix());
385 assert(op0
->type
== op1
->type
);
386 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
[] = {
561 "unpackHalf2x16_split_x",
562 "unpackHalf2x16_split_y",
573 "interpolate_at_centroid",
602 "packHalf2x16_split",
607 "interpolate_at_offset",
608 "interpolate_at_sample",
619 const char *ir_expression::operator_string(ir_expression_operation op
)
621 assert((unsigned int) op
< ARRAY_SIZE(operator_strs
));
622 assert(ARRAY_SIZE(operator_strs
) == (ir_quadop_vector
+ 1));
623 return operator_strs
[op
];
626 const char *ir_expression::operator_string()
628 return operator_string(this->operation
);
632 depth_layout_string(ir_depth_layout layout
)
635 case ir_depth_layout_none
: return "";
636 case ir_depth_layout_any
: return "depth_any";
637 case ir_depth_layout_greater
: return "depth_greater";
638 case ir_depth_layout_less
: return "depth_less";
639 case ir_depth_layout_unchanged
: return "depth_unchanged";
647 ir_expression_operation
648 ir_expression::get_operator(const char *str
)
650 const int operator_count
= sizeof(operator_strs
) / sizeof(operator_strs
[0]);
651 for (int op
= 0; op
< operator_count
; op
++) {
652 if (strcmp(str
, operator_strs
[op
]) == 0)
653 return (ir_expression_operation
) op
;
655 return (ir_expression_operation
) -1;
658 ir_constant::ir_constant()
659 : ir_rvalue(ir_type_constant
)
663 ir_constant::ir_constant(const struct glsl_type
*type
,
664 const ir_constant_data
*data
)
665 : ir_rvalue(ir_type_constant
)
667 assert((type
->base_type
>= GLSL_TYPE_UINT
)
668 && (type
->base_type
<= GLSL_TYPE_BOOL
));
671 memcpy(& this->value
, data
, sizeof(this->value
));
674 ir_constant::ir_constant(float f
, unsigned vector_elements
)
675 : ir_rvalue(ir_type_constant
)
677 assert(vector_elements
<= 4);
678 this->type
= glsl_type::get_instance(GLSL_TYPE_FLOAT
, vector_elements
, 1);
679 for (unsigned i
= 0; i
< vector_elements
; i
++) {
680 this->value
.f
[i
] = f
;
682 for (unsigned i
= vector_elements
; i
< 16; i
++) {
683 this->value
.f
[i
] = 0;
687 ir_constant::ir_constant(double d
, unsigned vector_elements
)
688 : ir_rvalue(ir_type_constant
)
690 assert(vector_elements
<= 4);
691 this->type
= glsl_type::get_instance(GLSL_TYPE_DOUBLE
, vector_elements
, 1);
692 for (unsigned i
= 0; i
< vector_elements
; i
++) {
693 this->value
.d
[i
] = d
;
695 for (unsigned i
= vector_elements
; i
< 16; i
++) {
696 this->value
.d
[i
] = 0.0;
700 ir_constant::ir_constant(unsigned int u
, unsigned vector_elements
)
701 : ir_rvalue(ir_type_constant
)
703 assert(vector_elements
<= 4);
704 this->type
= glsl_type::get_instance(GLSL_TYPE_UINT
, vector_elements
, 1);
705 for (unsigned i
= 0; i
< vector_elements
; i
++) {
706 this->value
.u
[i
] = u
;
708 for (unsigned i
= vector_elements
; i
< 16; i
++) {
709 this->value
.u
[i
] = 0;
713 ir_constant::ir_constant(int integer
, unsigned vector_elements
)
714 : ir_rvalue(ir_type_constant
)
716 assert(vector_elements
<= 4);
717 this->type
= glsl_type::get_instance(GLSL_TYPE_INT
, vector_elements
, 1);
718 for (unsigned i
= 0; i
< vector_elements
; i
++) {
719 this->value
.i
[i
] = integer
;
721 for (unsigned i
= vector_elements
; i
< 16; i
++) {
722 this->value
.i
[i
] = 0;
726 ir_constant::ir_constant(bool b
, unsigned vector_elements
)
727 : ir_rvalue(ir_type_constant
)
729 assert(vector_elements
<= 4);
730 this->type
= glsl_type::get_instance(GLSL_TYPE_BOOL
, vector_elements
, 1);
731 for (unsigned i
= 0; i
< vector_elements
; i
++) {
732 this->value
.b
[i
] = b
;
734 for (unsigned i
= vector_elements
; i
< 16; i
++) {
735 this->value
.b
[i
] = false;
739 ir_constant::ir_constant(const ir_constant
*c
, unsigned i
)
740 : ir_rvalue(ir_type_constant
)
742 this->type
= c
->type
->get_base_type();
744 switch (this->type
->base_type
) {
745 case GLSL_TYPE_UINT
: this->value
.u
[0] = c
->value
.u
[i
]; break;
746 case GLSL_TYPE_INT
: this->value
.i
[0] = c
->value
.i
[i
]; break;
747 case GLSL_TYPE_FLOAT
: this->value
.f
[0] = c
->value
.f
[i
]; break;
748 case GLSL_TYPE_BOOL
: this->value
.b
[0] = c
->value
.b
[i
]; break;
749 case GLSL_TYPE_DOUBLE
: this->value
.d
[0] = c
->value
.d
[i
]; break;
750 default: assert(!"Should not get here."); break;
754 ir_constant::ir_constant(const struct glsl_type
*type
, exec_list
*value_list
)
755 : ir_rvalue(ir_type_constant
)
759 assert(type
->is_scalar() || type
->is_vector() || type
->is_matrix()
760 || type
->is_record() || type
->is_array());
762 if (type
->is_array()) {
763 this->array_elements
= ralloc_array(this, ir_constant
*, type
->length
);
765 foreach_in_list(ir_constant
, value
, value_list
) {
766 assert(value
->as_constant() != NULL
);
768 this->array_elements
[i
++] = value
;
773 /* If the constant is a record, the types of each of the entries in
774 * value_list must be a 1-for-1 match with the structure components. Each
775 * entry must also be a constant. Just move the nodes from the value_list
776 * to the list in the ir_constant.
778 /* FINISHME: Should there be some type checking and / or assertions here? */
779 /* FINISHME: Should the new constant take ownership of the nodes from
780 * FINISHME: value_list, or should it make copies?
782 if (type
->is_record()) {
783 value_list
->move_nodes_to(& this->components
);
787 for (unsigned i
= 0; i
< 16; i
++) {
788 this->value
.u
[i
] = 0;
791 ir_constant
*value
= (ir_constant
*) (value_list
->head
);
793 /* Constructors with exactly one scalar argument are special for vectors
794 * and matrices. For vectors, the scalar value is replicated to fill all
795 * the components. For matrices, the scalar fills the components of the
796 * diagonal while the rest is filled with 0.
798 if (value
->type
->is_scalar() && value
->next
->is_tail_sentinel()) {
799 if (type
->is_matrix()) {
800 /* Matrix - fill diagonal (rest is already set to 0) */
801 assert(type
->base_type
== GLSL_TYPE_FLOAT
||
802 type
->base_type
== GLSL_TYPE_DOUBLE
);
803 for (unsigned i
= 0; i
< type
->matrix_columns
; i
++) {
804 if (type
->base_type
== GLSL_TYPE_FLOAT
)
805 this->value
.f
[i
* type
->vector_elements
+ i
] =
808 this->value
.d
[i
* type
->vector_elements
+ i
] =
812 /* Vector or scalar - fill all components */
813 switch (type
->base_type
) {
816 for (unsigned i
= 0; i
< type
->components(); i
++)
817 this->value
.u
[i
] = value
->value
.u
[0];
819 case GLSL_TYPE_FLOAT
:
820 for (unsigned i
= 0; i
< type
->components(); i
++)
821 this->value
.f
[i
] = value
->value
.f
[0];
823 case GLSL_TYPE_DOUBLE
:
824 for (unsigned i
= 0; i
< type
->components(); i
++)
825 this->value
.d
[i
] = value
->value
.d
[0];
828 for (unsigned i
= 0; i
< type
->components(); i
++)
829 this->value
.b
[i
] = value
->value
.b
[0];
832 assert(!"Should not get here.");
839 if (type
->is_matrix() && value
->type
->is_matrix()) {
840 assert(value
->next
->is_tail_sentinel());
842 /* From section 5.4.2 of the GLSL 1.20 spec:
843 * "If a matrix is constructed from a matrix, then each component
844 * (column i, row j) in the result that has a corresponding component
845 * (column i, row j) in the argument will be initialized from there."
847 unsigned cols
= MIN2(type
->matrix_columns
, value
->type
->matrix_columns
);
848 unsigned rows
= MIN2(type
->vector_elements
, value
->type
->vector_elements
);
849 for (unsigned i
= 0; i
< cols
; i
++) {
850 for (unsigned j
= 0; j
< rows
; j
++) {
851 const unsigned src
= i
* value
->type
->vector_elements
+ j
;
852 const unsigned dst
= i
* type
->vector_elements
+ j
;
853 this->value
.f
[dst
] = value
->value
.f
[src
];
857 /* "All other components will be initialized to the identity matrix." */
858 for (unsigned i
= cols
; i
< type
->matrix_columns
; i
++)
859 this->value
.f
[i
* type
->vector_elements
+ i
] = 1.0;
864 /* Use each component from each entry in the value_list to initialize one
865 * component of the constant being constructed.
867 for (unsigned i
= 0; i
< type
->components(); /* empty */) {
868 assert(value
->as_constant() != NULL
);
869 assert(!value
->is_tail_sentinel());
871 for (unsigned j
= 0; j
< value
->type
->components(); j
++) {
872 switch (type
->base_type
) {
874 this->value
.u
[i
] = value
->get_uint_component(j
);
877 this->value
.i
[i
] = value
->get_int_component(j
);
879 case GLSL_TYPE_FLOAT
:
880 this->value
.f
[i
] = value
->get_float_component(j
);
883 this->value
.b
[i
] = value
->get_bool_component(j
);
885 case GLSL_TYPE_DOUBLE
:
886 this->value
.d
[i
] = value
->get_double_component(j
);
889 /* FINISHME: What to do? Exceptions are not the answer.
895 if (i
>= type
->components())
899 value
= (ir_constant
*) value
->next
;
904 ir_constant::zero(void *mem_ctx
, const glsl_type
*type
)
906 assert(type
->is_scalar() || type
->is_vector() || type
->is_matrix()
907 || type
->is_record() || type
->is_array());
909 ir_constant
*c
= new(mem_ctx
) ir_constant
;
911 memset(&c
->value
, 0, sizeof(c
->value
));
913 if (type
->is_array()) {
914 c
->array_elements
= ralloc_array(c
, ir_constant
*, type
->length
);
916 for (unsigned i
= 0; i
< type
->length
; i
++)
917 c
->array_elements
[i
] = ir_constant::zero(c
, type
->element_type());
920 if (type
->is_record()) {
921 for (unsigned i
= 0; i
< type
->length
; i
++) {
922 ir_constant
*comp
= ir_constant::zero(mem_ctx
, type
->fields
.structure
[i
].type
);
923 c
->components
.push_tail(comp
);
931 ir_constant::get_bool_component(unsigned i
) const
933 switch (this->type
->base_type
) {
934 case GLSL_TYPE_UINT
: return this->value
.u
[i
] != 0;
935 case GLSL_TYPE_INT
: return this->value
.i
[i
] != 0;
936 case GLSL_TYPE_FLOAT
: return ((int)this->value
.f
[i
]) != 0;
937 case GLSL_TYPE_BOOL
: return this->value
.b
[i
];
938 case GLSL_TYPE_DOUBLE
: return this->value
.d
[i
] != 0.0;
939 default: assert(!"Should not get here."); break;
942 /* Must return something to make the compiler happy. This is clearly an
949 ir_constant::get_float_component(unsigned i
) const
951 switch (this->type
->base_type
) {
952 case GLSL_TYPE_UINT
: return (float) this->value
.u
[i
];
953 case GLSL_TYPE_INT
: return (float) this->value
.i
[i
];
954 case GLSL_TYPE_FLOAT
: return this->value
.f
[i
];
955 case GLSL_TYPE_BOOL
: return this->value
.b
[i
] ? 1.0f
: 0.0f
;
956 case GLSL_TYPE_DOUBLE
: return (float) this->value
.d
[i
];
957 default: assert(!"Should not get here."); break;
960 /* Must return something to make the compiler happy. This is clearly an
967 ir_constant::get_double_component(unsigned i
) const
969 switch (this->type
->base_type
) {
970 case GLSL_TYPE_UINT
: return (double) this->value
.u
[i
];
971 case GLSL_TYPE_INT
: return (double) this->value
.i
[i
];
972 case GLSL_TYPE_FLOAT
: return (double) this->value
.f
[i
];
973 case GLSL_TYPE_BOOL
: return this->value
.b
[i
] ? 1.0 : 0.0;
974 case GLSL_TYPE_DOUBLE
: return this->value
.d
[i
];
975 default: assert(!"Should not get here."); break;
978 /* Must return something to make the compiler happy. This is clearly an
985 ir_constant::get_int_component(unsigned i
) const
987 switch (this->type
->base_type
) {
988 case GLSL_TYPE_UINT
: return this->value
.u
[i
];
989 case GLSL_TYPE_INT
: return this->value
.i
[i
];
990 case GLSL_TYPE_FLOAT
: return (int) this->value
.f
[i
];
991 case GLSL_TYPE_BOOL
: return this->value
.b
[i
] ? 1 : 0;
992 case GLSL_TYPE_DOUBLE
: return (int) this->value
.d
[i
];
993 default: assert(!"Should not get here."); break;
996 /* Must return something to make the compiler happy. This is clearly an
1003 ir_constant::get_uint_component(unsigned i
) const
1005 switch (this->type
->base_type
) {
1006 case GLSL_TYPE_UINT
: return this->value
.u
[i
];
1007 case GLSL_TYPE_INT
: return this->value
.i
[i
];
1008 case GLSL_TYPE_FLOAT
: return (unsigned) this->value
.f
[i
];
1009 case GLSL_TYPE_BOOL
: return this->value
.b
[i
] ? 1 : 0;
1010 case GLSL_TYPE_DOUBLE
: return (unsigned) this->value
.d
[i
];
1011 default: assert(!"Should not get here."); break;
1014 /* Must return something to make the compiler happy. This is clearly an
1021 ir_constant::get_array_element(unsigned i
) const
1023 assert(this->type
->is_array());
1025 /* From page 35 (page 41 of the PDF) of the GLSL 1.20 spec:
1027 * "Behavior is undefined if a shader subscripts an array with an index
1028 * less than 0 or greater than or equal to the size the array was
1031 * Most out-of-bounds accesses are removed before things could get this far.
1032 * There are cases where non-constant array index values can get constant
1037 else if (i
>= this->type
->length
)
1038 i
= this->type
->length
- 1;
1040 return array_elements
[i
];
1044 ir_constant::get_record_field(const char *name
)
1046 int idx
= this->type
->field_index(name
);
1051 if (this->components
.is_empty())
1054 exec_node
*node
= this->components
.head
;
1055 for (int i
= 0; i
< idx
; i
++) {
1058 /* If the end of the list is encountered before the element matching the
1059 * requested field is found, return NULL.
1061 if (node
->is_tail_sentinel())
1065 return (ir_constant
*) node
;
1069 ir_constant::copy_offset(ir_constant
*src
, int offset
)
1071 switch (this->type
->base_type
) {
1072 case GLSL_TYPE_UINT
:
1074 case GLSL_TYPE_FLOAT
:
1075 case GLSL_TYPE_DOUBLE
:
1076 case GLSL_TYPE_BOOL
: {
1077 unsigned int size
= src
->type
->components();
1078 assert (size
<= this->type
->components() - offset
);
1079 for (unsigned int i
=0; i
<size
; i
++) {
1080 switch (this->type
->base_type
) {
1081 case GLSL_TYPE_UINT
:
1082 value
.u
[i
+offset
] = src
->get_uint_component(i
);
1085 value
.i
[i
+offset
] = src
->get_int_component(i
);
1087 case GLSL_TYPE_FLOAT
:
1088 value
.f
[i
+offset
] = src
->get_float_component(i
);
1090 case GLSL_TYPE_BOOL
:
1091 value
.b
[i
+offset
] = src
->get_bool_component(i
);
1093 case GLSL_TYPE_DOUBLE
:
1094 value
.d
[i
+offset
] = src
->get_double_component(i
);
1096 default: // Shut up the compiler
1103 case GLSL_TYPE_STRUCT
: {
1104 assert (src
->type
== this->type
);
1105 this->components
.make_empty();
1106 foreach_in_list(ir_constant
, orig
, &src
->components
) {
1107 this->components
.push_tail(orig
->clone(this, NULL
));
1112 case GLSL_TYPE_ARRAY
: {
1113 assert (src
->type
== this->type
);
1114 for (unsigned i
= 0; i
< this->type
->length
; i
++) {
1115 this->array_elements
[i
] = src
->array_elements
[i
]->clone(this, NULL
);
1121 assert(!"Should not get here.");
1127 ir_constant::copy_masked_offset(ir_constant
*src
, int offset
, unsigned int mask
)
1129 assert (!type
->is_array() && !type
->is_record());
1131 if (!type
->is_vector() && !type
->is_matrix()) {
1137 for (int i
=0; i
<4; i
++) {
1138 if (mask
& (1 << i
)) {
1139 switch (this->type
->base_type
) {
1140 case GLSL_TYPE_UINT
:
1141 value
.u
[i
+offset
] = src
->get_uint_component(id
++);
1144 value
.i
[i
+offset
] = src
->get_int_component(id
++);
1146 case GLSL_TYPE_FLOAT
:
1147 value
.f
[i
+offset
] = src
->get_float_component(id
++);
1149 case GLSL_TYPE_BOOL
:
1150 value
.b
[i
+offset
] = src
->get_bool_component(id
++);
1152 case GLSL_TYPE_DOUBLE
:
1153 value
.d
[i
+offset
] = src
->get_double_component(id
++);
1156 assert(!"Should not get here.");
1164 ir_constant::has_value(const ir_constant
*c
) const
1166 if (this->type
!= c
->type
)
1169 if (this->type
->is_array()) {
1170 for (unsigned i
= 0; i
< this->type
->length
; i
++) {
1171 if (!this->array_elements
[i
]->has_value(c
->array_elements
[i
]))
1177 if (this->type
->base_type
== GLSL_TYPE_STRUCT
) {
1178 const exec_node
*a_node
= this->components
.head
;
1179 const exec_node
*b_node
= c
->components
.head
;
1181 while (!a_node
->is_tail_sentinel()) {
1182 assert(!b_node
->is_tail_sentinel());
1184 const ir_constant
*const a_field
= (ir_constant
*) a_node
;
1185 const ir_constant
*const b_field
= (ir_constant
*) b_node
;
1187 if (!a_field
->has_value(b_field
))
1190 a_node
= a_node
->next
;
1191 b_node
= b_node
->next
;
1197 for (unsigned i
= 0; i
< this->type
->components(); i
++) {
1198 switch (this->type
->base_type
) {
1199 case GLSL_TYPE_UINT
:
1200 if (this->value
.u
[i
] != c
->value
.u
[i
])
1204 if (this->value
.i
[i
] != c
->value
.i
[i
])
1207 case GLSL_TYPE_FLOAT
:
1208 if (this->value
.f
[i
] != c
->value
.f
[i
])
1211 case GLSL_TYPE_BOOL
:
1212 if (this->value
.b
[i
] != c
->value
.b
[i
])
1215 case GLSL_TYPE_DOUBLE
:
1216 if (this->value
.d
[i
] != c
->value
.d
[i
])
1220 assert(!"Should not get here.");
1229 ir_constant::is_value(float f
, int i
) const
1231 if (!this->type
->is_scalar() && !this->type
->is_vector())
1234 /* Only accept boolean values for 0/1. */
1235 if (int(bool(i
)) != i
&& this->type
->is_boolean())
1238 for (unsigned c
= 0; c
< this->type
->vector_elements
; c
++) {
1239 switch (this->type
->base_type
) {
1240 case GLSL_TYPE_FLOAT
:
1241 if (this->value
.f
[c
] != f
)
1245 if (this->value
.i
[c
] != i
)
1248 case GLSL_TYPE_UINT
:
1249 if (this->value
.u
[c
] != unsigned(i
))
1252 case GLSL_TYPE_BOOL
:
1253 if (this->value
.b
[c
] != bool(i
))
1256 case GLSL_TYPE_DOUBLE
:
1257 if (this->value
.d
[c
] != double(f
))
1261 /* The only other base types are structures, arrays, and samplers.
1262 * Samplers cannot be constants, and the others should have been
1263 * filtered out above.
1265 assert(!"Should not get here.");
1274 ir_constant::is_zero() const
1276 return is_value(0.0, 0);
1280 ir_constant::is_one() const
1282 return is_value(1.0, 1);
1286 ir_constant::is_negative_one() const
1288 return is_value(-1.0, -1);
1292 ir_constant::is_uint16_constant() const
1294 if (!type
->is_integer())
1297 return value
.u
[0] < (1 << 16);
1301 : ir_instruction(ir_type_loop
)
1306 ir_dereference_variable::ir_dereference_variable(ir_variable
*var
)
1307 : ir_dereference(ir_type_dereference_variable
)
1309 assert(var
!= NULL
);
1312 this->type
= var
->type
;
1316 ir_dereference_array::ir_dereference_array(ir_rvalue
*value
,
1317 ir_rvalue
*array_index
)
1318 : ir_dereference(ir_type_dereference_array
)
1320 this->array_index
= array_index
;
1321 this->set_array(value
);
1325 ir_dereference_array::ir_dereference_array(ir_variable
*var
,
1326 ir_rvalue
*array_index
)
1327 : ir_dereference(ir_type_dereference_array
)
1329 void *ctx
= ralloc_parent(var
);
1331 this->array_index
= array_index
;
1332 this->set_array(new(ctx
) ir_dereference_variable(var
));
1337 ir_dereference_array::set_array(ir_rvalue
*value
)
1339 assert(value
!= NULL
);
1341 this->array
= value
;
1343 const glsl_type
*const vt
= this->array
->type
;
1345 if (vt
->is_array()) {
1346 type
= vt
->element_type();
1347 } else if (vt
->is_matrix()) {
1348 type
= vt
->column_type();
1349 } else if (vt
->is_vector()) {
1350 type
= vt
->get_base_type();
1355 ir_dereference_record::ir_dereference_record(ir_rvalue
*value
,
1357 : ir_dereference(ir_type_dereference_record
)
1359 assert(value
!= NULL
);
1361 this->record
= value
;
1362 this->field
= ralloc_strdup(this, field
);
1363 this->type
= this->record
->type
->field_type(field
);
1367 ir_dereference_record::ir_dereference_record(ir_variable
*var
,
1369 : ir_dereference(ir_type_dereference_record
)
1371 void *ctx
= ralloc_parent(var
);
1373 this->record
= new(ctx
) ir_dereference_variable(var
);
1374 this->field
= ralloc_strdup(this, field
);
1375 this->type
= this->record
->type
->field_type(field
);
1379 ir_dereference::is_lvalue() const
1381 ir_variable
*var
= this->variable_referenced();
1383 /* Every l-value derference chain eventually ends in a variable.
1385 if ((var
== NULL
) || var
->data
.read_only
)
1388 /* From section 4.1.7 of the GLSL 4.40 spec:
1390 * "Opaque variables cannot be treated as l-values; hence cannot
1391 * be used as out or inout function parameters, nor can they be
1394 if (this->type
->contains_opaque())
1401 static const char * const tex_opcode_strs
[] = { "tex", "txb", "txl", "txd", "txf", "txf_ms", "txs", "lod", "tg4", "query_levels" };
1403 const char *ir_texture::opcode_string()
1405 assert((unsigned int) op
<=
1406 sizeof(tex_opcode_strs
) / sizeof(tex_opcode_strs
[0]));
1407 return tex_opcode_strs
[op
];
1411 ir_texture::get_opcode(const char *str
)
1413 const int count
= sizeof(tex_opcode_strs
) / sizeof(tex_opcode_strs
[0]);
1414 for (int op
= 0; op
< count
; op
++) {
1415 if (strcmp(str
, tex_opcode_strs
[op
]) == 0)
1416 return (ir_texture_opcode
) op
;
1418 return (ir_texture_opcode
) -1;
1423 ir_texture::set_sampler(ir_dereference
*sampler
, const glsl_type
*type
)
1425 assert(sampler
!= NULL
);
1426 assert(type
!= NULL
);
1427 this->sampler
= sampler
;
1430 if (this->op
== ir_txs
|| this->op
== ir_query_levels
) {
1431 assert(type
->base_type
== GLSL_TYPE_INT
);
1432 } else if (this->op
== ir_lod
) {
1433 assert(type
->vector_elements
== 2);
1434 assert(type
->base_type
== GLSL_TYPE_FLOAT
);
1436 assert(sampler
->type
->sampler_type
== (int) type
->base_type
);
1437 if (sampler
->type
->sampler_shadow
)
1438 assert(type
->vector_elements
== 4 || type
->vector_elements
== 1);
1440 assert(type
->vector_elements
== 4);
1446 ir_swizzle::init_mask(const unsigned *comp
, unsigned count
)
1448 assert((count
>= 1) && (count
<= 4));
1450 memset(&this->mask
, 0, sizeof(this->mask
));
1451 this->mask
.num_components
= count
;
1453 unsigned dup_mask
= 0;
1456 assert(comp
[3] <= 3);
1457 dup_mask
|= (1U << comp
[3])
1458 & ((1U << comp
[0]) | (1U << comp
[1]) | (1U << comp
[2]));
1459 this->mask
.w
= comp
[3];
1462 assert(comp
[2] <= 3);
1463 dup_mask
|= (1U << comp
[2])
1464 & ((1U << comp
[0]) | (1U << comp
[1]));
1465 this->mask
.z
= comp
[2];
1468 assert(comp
[1] <= 3);
1469 dup_mask
|= (1U << comp
[1])
1470 & ((1U << comp
[0]));
1471 this->mask
.y
= comp
[1];
1474 assert(comp
[0] <= 3);
1475 this->mask
.x
= comp
[0];
1478 this->mask
.has_duplicates
= dup_mask
!= 0;
1480 /* Based on the number of elements in the swizzle and the base type
1481 * (i.e., float, int, unsigned, or bool) of the vector being swizzled,
1482 * generate the type of the resulting value.
1484 type
= glsl_type::get_instance(val
->type
->base_type
, mask
.num_components
, 1);
1487 ir_swizzle::ir_swizzle(ir_rvalue
*val
, unsigned x
, unsigned y
, unsigned z
,
1488 unsigned w
, unsigned count
)
1489 : ir_rvalue(ir_type_swizzle
), val(val
)
1491 const unsigned components
[4] = { x
, y
, z
, w
};
1492 this->init_mask(components
, count
);
1495 ir_swizzle::ir_swizzle(ir_rvalue
*val
, const unsigned *comp
,
1497 : ir_rvalue(ir_type_swizzle
), val(val
)
1499 this->init_mask(comp
, count
);
1502 ir_swizzle::ir_swizzle(ir_rvalue
*val
, ir_swizzle_mask mask
)
1503 : ir_rvalue(ir_type_swizzle
)
1507 this->type
= glsl_type::get_instance(val
->type
->base_type
,
1508 mask
.num_components
, 1);
1517 ir_swizzle::create(ir_rvalue
*val
, const char *str
, unsigned vector_length
)
1519 void *ctx
= ralloc_parent(val
);
1521 /* For each possible swizzle character, this table encodes the value in
1522 * \c idx_map that represents the 0th element of the vector. For invalid
1523 * swizzle characters (e.g., 'k'), a special value is used that will allow
1524 * detection of errors.
1526 static const unsigned char base_idx
[26] = {
1527 /* a b c d e f g h i j k l m */
1528 R
, R
, I
, I
, I
, I
, R
, I
, I
, I
, I
, I
, I
,
1529 /* n o p q r s t u v w x y z */
1530 I
, I
, S
, S
, R
, S
, S
, I
, I
, X
, X
, X
, X
1533 /* Each valid swizzle character has an entry in the previous table. This
1534 * table encodes the base index encoded in the previous table plus the actual
1535 * index of the swizzle character. When processing swizzles, the first
1536 * character in the string is indexed in the previous table. Each character
1537 * in the string is indexed in this table, and the value found there has the
1538 * value form the first table subtracted. The result must be on the range
1541 * For example, the string "wzyx" will get X from the first table. Each of
1542 * the charcaters will get X+3, X+2, X+1, and X+0 from this table. After
1543 * subtraction, the swizzle values are { 3, 2, 1, 0 }.
1545 * The string "wzrg" will get X from the first table. Each of the characters
1546 * will get X+3, X+2, R+0, and R+1 from this table. After subtraction, the
1547 * swizzle values are { 3, 2, 4, 5 }. Since 4 and 5 are outside the range
1548 * [0,3], the error is detected.
1550 static const unsigned char idx_map
[26] = {
1551 /* a b c d e f g h i j k l m */
1552 R
+3, R
+2, 0, 0, 0, 0, R
+1, 0, 0, 0, 0, 0, 0,
1553 /* n o p q r s t u v w x y z */
1554 0, 0, S
+2, S
+3, R
+0, S
+0, S
+1, 0, 0, X
+3, X
+0, X
+1, X
+2
1557 int swiz_idx
[4] = { 0, 0, 0, 0 };
1561 /* Validate the first character in the swizzle string and look up the base
1562 * index value as described above.
1564 if ((str
[0] < 'a') || (str
[0] > 'z'))
1567 const unsigned base
= base_idx
[str
[0] - 'a'];
1570 for (i
= 0; (i
< 4) && (str
[i
] != '\0'); i
++) {
1571 /* Validate the next character, and, as described above, convert it to a
1574 if ((str
[i
] < 'a') || (str
[i
] > 'z'))
1577 swiz_idx
[i
] = idx_map
[str
[i
] - 'a'] - base
;
1578 if ((swiz_idx
[i
] < 0) || (swiz_idx
[i
] >= (int) vector_length
))
1585 return new(ctx
) ir_swizzle(val
, swiz_idx
[0], swiz_idx
[1], swiz_idx
[2],
1595 ir_swizzle::variable_referenced() const
1597 return this->val
->variable_referenced();
1601 bool ir_variable::temporaries_allocate_names
= false;
1603 const char ir_variable::tmp_name
[] = "compiler_temp";
1605 ir_variable::ir_variable(const struct glsl_type
*type
, const char *name
,
1606 ir_variable_mode mode
)
1607 : ir_instruction(ir_type_variable
)
1611 if (mode
== ir_var_temporary
&& !ir_variable::temporaries_allocate_names
)
1614 /* The ir_variable clone method may call this constructor with name set to
1618 || mode
== ir_var_temporary
1619 || mode
== ir_var_function_in
1620 || mode
== ir_var_function_out
1621 || mode
== ir_var_function_inout
);
1622 assert(name
!= ir_variable::tmp_name
1623 || mode
== ir_var_temporary
);
1624 if (mode
== ir_var_temporary
1625 && (name
== NULL
|| name
== ir_variable::tmp_name
)) {
1626 this->name
= ir_variable::tmp_name
;
1628 this->name
= ralloc_strdup(this, name
);
1631 this->u
.max_ifc_array_access
= NULL
;
1633 this->data
.explicit_location
= false;
1634 this->data
.has_initializer
= false;
1635 this->data
.location
= -1;
1636 this->data
.location_frac
= 0;
1637 this->data
.binding
= 0;
1638 this->data
.warn_extension_index
= 0;
1639 this->constant_value
= NULL
;
1640 this->constant_initializer
= NULL
;
1641 this->data
.origin_upper_left
= false;
1642 this->data
.pixel_center_integer
= false;
1643 this->data
.depth_layout
= ir_depth_layout_none
;
1644 this->data
.used
= false;
1645 this->data
.read_only
= false;
1646 this->data
.centroid
= false;
1647 this->data
.sample
= false;
1648 this->data
.invariant
= false;
1649 this->data
.how_declared
= ir_var_declared_normally
;
1650 this->data
.mode
= mode
;
1651 this->data
.interpolation
= INTERP_QUALIFIER_NONE
;
1652 this->data
.max_array_access
= 0;
1653 this->data
.atomic
.offset
= 0;
1654 this->data
.image_read_only
= false;
1655 this->data
.image_write_only
= false;
1656 this->data
.image_coherent
= false;
1657 this->data
.image_volatile
= false;
1658 this->data
.image_restrict
= false;
1661 if (type
->base_type
== GLSL_TYPE_SAMPLER
)
1662 this->data
.read_only
= true;
1664 if (type
->is_interface())
1665 this->init_interface_type(type
);
1666 else if (type
->is_array() && type
->fields
.array
->is_interface())
1667 this->init_interface_type(type
->fields
.array
);
1673 interpolation_string(unsigned interpolation
)
1675 switch (interpolation
) {
1676 case INTERP_QUALIFIER_NONE
: return "no";
1677 case INTERP_QUALIFIER_SMOOTH
: return "smooth";
1678 case INTERP_QUALIFIER_FLAT
: return "flat";
1679 case INTERP_QUALIFIER_NOPERSPECTIVE
: return "noperspective";
1682 assert(!"Should not get here.");
1687 glsl_interp_qualifier
1688 ir_variable::determine_interpolation_mode(bool flat_shade
)
1690 if (this->data
.interpolation
!= INTERP_QUALIFIER_NONE
)
1691 return (glsl_interp_qualifier
) this->data
.interpolation
;
1692 int location
= this->data
.location
;
1694 location
== VARYING_SLOT_COL0
|| location
== VARYING_SLOT_COL1
;
1695 if (flat_shade
&& is_gl_Color
)
1696 return INTERP_QUALIFIER_FLAT
;
1698 return INTERP_QUALIFIER_SMOOTH
;
1701 const char *const ir_variable::warn_extension_table
[] = {
1703 "GL_ARB_shader_stencil_export",
1704 "GL_AMD_shader_stencil_export",
1708 ir_variable::enable_extension_warning(const char *extension
)
1710 for (unsigned i
= 0; i
< ARRAY_SIZE(warn_extension_table
); i
++) {
1711 if (strcmp(warn_extension_table
[i
], extension
) == 0) {
1712 this->data
.warn_extension_index
= i
;
1717 assert(!"Should not get here.");
1718 this->data
.warn_extension_index
= 0;
1722 ir_variable::get_extension_warning() const
1724 return this->data
.warn_extension_index
== 0
1725 ? NULL
: warn_extension_table
[this->data
.warn_extension_index
];
1728 ir_function_signature::ir_function_signature(const glsl_type
*return_type
,
1729 builtin_available_predicate b
)
1730 : ir_instruction(ir_type_function_signature
),
1731 return_type(return_type
), is_defined(false), is_intrinsic(false),
1732 builtin_avail(b
), _function(NULL
)
1734 this->origin
= NULL
;
1739 ir_function_signature::is_builtin() const
1741 return builtin_avail
!= NULL
;
1746 ir_function_signature::is_builtin_available(const _mesa_glsl_parse_state
*state
) const
1748 /* We can't call the predicate without a state pointer, so just say that
1749 * the signature is available. At compile time, we need the filtering,
1750 * but also receive a valid state pointer. At link time, we're resolving
1751 * imported built-in prototypes to their definitions, which will always
1752 * be an exact match. So we can skip the filtering.
1757 assert(builtin_avail
!= NULL
);
1758 return builtin_avail(state
);
1763 modes_match(unsigned a
, unsigned b
)
1768 /* Accept "in" vs. "const in" */
1769 if ((a
== ir_var_const_in
&& b
== ir_var_function_in
) ||
1770 (b
== ir_var_const_in
&& a
== ir_var_function_in
))
1778 ir_function_signature::qualifiers_match(exec_list
*params
)
1780 /* check that the qualifiers match. */
1781 foreach_two_lists(a_node
, &this->parameters
, b_node
, params
) {
1782 ir_variable
*a
= (ir_variable
*) a_node
;
1783 ir_variable
*b
= (ir_variable
*) b_node
;
1785 if (a
->data
.read_only
!= b
->data
.read_only
||
1786 !modes_match(a
->data
.mode
, b
->data
.mode
) ||
1787 a
->data
.interpolation
!= b
->data
.interpolation
||
1788 a
->data
.centroid
!= b
->data
.centroid
||
1789 a
->data
.sample
!= b
->data
.sample
||
1790 a
->data
.image_read_only
!= b
->data
.image_read_only
||
1791 a
->data
.image_write_only
!= b
->data
.image_write_only
||
1792 a
->data
.image_coherent
!= b
->data
.image_coherent
||
1793 a
->data
.image_volatile
!= b
->data
.image_volatile
||
1794 a
->data
.image_restrict
!= b
->data
.image_restrict
) {
1796 /* parameter a's qualifiers don't match */
1805 ir_function_signature::replace_parameters(exec_list
*new_params
)
1807 /* Destroy all of the previous parameter information. If the previous
1808 * parameter information comes from the function prototype, it may either
1809 * specify incorrect parameter names or not have names at all.
1811 new_params
->move_nodes_to(¶meters
);
1815 ir_function::ir_function(const char *name
)
1816 : ir_instruction(ir_type_function
)
1818 this->name
= ralloc_strdup(this, name
);
1823 ir_function::has_user_signature()
1825 foreach_in_list(ir_function_signature
, sig
, &this->signatures
) {
1826 if (!sig
->is_builtin())
1834 ir_rvalue::error_value(void *mem_ctx
)
1836 ir_rvalue
*v
= new(mem_ctx
) ir_rvalue(ir_type_unset
);
1838 v
->type
= glsl_type::error_type
;
1844 visit_exec_list(exec_list
*list
, ir_visitor
*visitor
)
1846 foreach_in_list_safe(ir_instruction
, node
, list
) {
1847 node
->accept(visitor
);
1853 steal_memory(ir_instruction
*ir
, void *new_ctx
)
1855 ir_variable
*var
= ir
->as_variable();
1856 ir_constant
*constant
= ir
->as_constant();
1857 if (var
!= NULL
&& var
->constant_value
!= NULL
)
1858 steal_memory(var
->constant_value
, ir
);
1860 if (var
!= NULL
&& var
->constant_initializer
!= NULL
)
1861 steal_memory(var
->constant_initializer
, ir
);
1863 /* The components of aggregate constants are not visited by the normal
1864 * visitor, so steal their values by hand.
1866 if (constant
!= NULL
) {
1867 if (constant
->type
->is_record()) {
1868 foreach_in_list(ir_constant
, field
, &constant
->components
) {
1869 steal_memory(field
, ir
);
1871 } else if (constant
->type
->is_array()) {
1872 for (unsigned int i
= 0; i
< constant
->type
->length
; i
++) {
1873 steal_memory(constant
->array_elements
[i
], ir
);
1878 ralloc_steal(new_ctx
, ir
);
1883 reparent_ir(exec_list
*list
, void *mem_ctx
)
1885 foreach_in_list(ir_instruction
, node
, list
) {
1886 visit_tree(node
, steal_memory
, mem_ctx
);
1892 try_min_one(ir_rvalue
*ir
)
1894 ir_expression
*expr
= ir
->as_expression();
1896 if (!expr
|| expr
->operation
!= ir_binop_min
)
1899 if (expr
->operands
[0]->is_one())
1900 return expr
->operands
[1];
1902 if (expr
->operands
[1]->is_one())
1903 return expr
->operands
[0];
1909 try_max_zero(ir_rvalue
*ir
)
1911 ir_expression
*expr
= ir
->as_expression();
1913 if (!expr
|| expr
->operation
!= ir_binop_max
)
1916 if (expr
->operands
[0]->is_zero())
1917 return expr
->operands
[1];
1919 if (expr
->operands
[1]->is_zero())
1920 return expr
->operands
[0];
1926 ir_rvalue::as_rvalue_to_saturate()
1928 ir_expression
*expr
= this->as_expression();
1933 ir_rvalue
*max_zero
= try_max_zero(expr
);
1935 return try_min_one(max_zero
);
1937 ir_rvalue
*min_one
= try_min_one(expr
);
1939 return try_max_zero(min_one
);
1948 vertices_per_prim(GLenum prim
)
1957 case GL_LINES_ADJACENCY
:
1959 case GL_TRIANGLES_ADJACENCY
:
1962 assert(!"Bad primitive");
1968 * Generate a string describing the mode of a variable
1971 mode_string(const ir_variable
*var
)
1973 switch (var
->data
.mode
) {
1975 return (var
->data
.read_only
) ? "global constant" : "global variable";
1977 case ir_var_uniform
:
1980 case ir_var_shader_in
:
1981 return "shader input";
1983 case ir_var_shader_out
:
1984 return "shader output";
1986 case ir_var_function_in
:
1987 case ir_var_const_in
:
1988 return "function input";
1990 case ir_var_function_out
:
1991 return "function output";
1993 case ir_var_function_inout
:
1994 return "function inout";
1996 case ir_var_system_value
:
1997 return "shader input";
1999 case ir_var_temporary
:
2000 return "compiler temporary";
2002 case ir_var_mode_count
:
2006 assert(!"Should not get here.");
2007 return "invalid variable";