3 # Copyright (C) 2015 Intel Corporation
5 # Permission is hereby granted, free of charge, to any person obtaining a
6 # copy of this software and associated documentation files (the "Software"),
7 # to deal in the Software without restriction, including without limitation
8 # the rights to use, copy, modify, merge, publish, distribute, sublicense,
9 # and/or sell copies of the Software, and to permit persons to whom the
10 # Software is furnished to do so, subject to the following conditions:
12 # The above copyright notice and this permission notice (including the next
13 # paragraph) shall be included in all copies or substantial portions of the
16 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 # THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
21 # FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
28 def __init__(self
, c_type
, union_field
, glsl_type
):
30 self
.union_field
= union_field
31 self
.glsl_type
= glsl_type
34 class type_signature_iter(object):
35 """Basic iterator for a set of type signatures. Various kinds of sequences of
36 types come in, and an iteration of type_signature objects come out.
40 def __init__(self
, source_types
, num_operands
):
41 """Initialize an iterator from a sequence of input types and a number
42 operands. This is for signatures where all the operands have the same
43 type and the result type of the operation is the same as the input type.
47 self
.source_types
= source_types
48 self
.num_operands
= num_operands
51 def __init__(self
, dest_type
, source_types
, num_operands
):
52 """Initialize an iterator from a result tpye, a sequence of input types and a
53 number operands. This is for signatures where all the operands have the
54 same type but the result type of the operation is different from the
58 self
.dest_type
= dest_type
59 self
.source_types
= source_types
60 self
.num_operands
= num_operands
67 if self
.i
< len(self
.source_types
):
71 if self
.dest_type
is None:
72 dest_type
= self
.source_types
[i
]
74 dest_type
= self
.dest_type
76 return (dest_type
, self
.num_operands
* (self
.source_types
[i
],))
81 uint_type
= type("unsigned", "u", "GLSL_TYPE_UINT")
82 int_type
= type("int", "i", "GLSL_TYPE_INT")
83 float_type
= type("float", "f", "GLSL_TYPE_FLOAT")
84 double_type
= type("double", "d", "GLSL_TYPE_DOUBLE")
85 bool_type
= type("bool", "b", "GLSL_TYPE_BOOL")
87 all_types
= (uint_type
, int_type
, float_type
, double_type
, bool_type
)
88 numeric_types
= (uint_type
, int_type
, float_type
, double_type
)
89 signed_numeric_types
= (int_type
, float_type
, double_type
)
90 integer_types
= (uint_type
, int_type
)
91 real_types
= (float_type
, double_type
)
93 # This template is for operations that can have operands of a several
94 # different types, and each type may or may not has a different C expression.
95 # This is used by most operations.
96 constant_template_common
= mako
.template
.Template("""\
97 case ${op.get_enum_name()}:
98 for (unsigned c = 0; c < op[0]->type->components(); c++) {
99 switch (op[0]->type->base_type) {
100 % for dst_type, src_types in op.signatures():
101 case ${src_types[0].glsl_type}:
102 data.${dst_type.union_field}[c] = ${op.get_c_expression(src_types)};
106 unreachable("invalid type");
111 # This template is for binary operations that can operate on some combination
112 # of scalar and vector operands.
113 constant_template_vector_scalar
= mako
.template
.Template("""\
114 case ${op.get_enum_name()}:
115 % if "mixed" in op.flags:
116 % for i in xrange(op.num_operands):
117 assert(op[${i}]->type->base_type == ${op.source_types[0].glsl_type} ||
118 % for src_type in op.source_types[1:-1]:
119 op[${i}]->type->base_type == ${src_type.glsl_type} ||
121 op[${i}]->type->base_type == ${op.source_types[-1].glsl_type});
124 assert(op[0]->type == op[1]->type || op0_scalar || op1_scalar);
126 for (unsigned c = 0, c0 = 0, c1 = 0;
128 c0 += c0_inc, c1 += c1_inc, c++) {
130 switch (op[0]->type->base_type) {
131 % for dst_type, src_types in op.signatures():
132 case ${src_types[0].glsl_type}:
133 data.${dst_type.union_field}[c] = ${op.get_c_expression(src_types, ("c0", "c1", "c2"))};
137 unreachable("invalid type");
142 # This template is for multiplication. It is unique because it has to support
143 # matrix * vector and matrix * matrix operations, and those are just different.
144 constant_template_mul
= mako
.template
.Template("""\
145 case ${op.get_enum_name()}:
146 /* Check for equal types, or unequal types involving scalars */
147 if ((op[0]->type == op[1]->type && !op[0]->type->is_matrix())
148 || op0_scalar || op1_scalar) {
149 for (unsigned c = 0, c0 = 0, c1 = 0;
151 c0 += c0_inc, c1 += c1_inc, c++) {
153 switch (op[0]->type->base_type) {
154 % for dst_type, src_types in op.signatures():
155 case ${src_types[0].glsl_type}:
156 data.${dst_type.union_field}[c] = ${op.get_c_expression(src_types, ("c0", "c1", "c2"))};
160 unreachable("invalid type");
164 assert(op[0]->type->is_matrix() || op[1]->type->is_matrix());
166 /* Multiply an N-by-M matrix with an M-by-P matrix. Since either
167 * matrix can be a GLSL vector, either N or P can be 1.
169 * For vec*mat, the vector is treated as a row vector. This
170 * means the vector is a 1-row x M-column matrix.
172 * For mat*vec, the vector is treated as a column vector. Since
173 * matrix_columns is 1 for vectors, this just works.
175 const unsigned n = op[0]->type->is_vector()
176 ? 1 : op[0]->type->vector_elements;
177 const unsigned m = op[1]->type->vector_elements;
178 const unsigned p = op[1]->type->matrix_columns;
179 for (unsigned j = 0; j < p; j++) {
180 for (unsigned i = 0; i < n; i++) {
181 for (unsigned k = 0; k < m; k++) {
182 if (op[0]->type->base_type == GLSL_TYPE_DOUBLE)
183 data.d[i+n*j] += op[0]->value.d[i+n*k]*op[1]->value.d[k+m*j];
185 data.f[i+n*j] += op[0]->value.f[i+n*k]*op[1]->value.f[k+m*j];
192 # This template is for operations that are horizontal and either have only a
193 # single type or the implementation for all types is identical. That is, the
194 # operation consumes a vector and produces a scalar.
195 constant_template_horizontal_single_implementation
= mako
.template
.Template("""\
196 case ${op.get_enum_name()}:
197 data.${op.dest_type.union_field}[0] = ${op.c_expression['default']};
200 # This template is for operations that are horizontal and do not assign the
201 # result. The various unpack operations are examples.
202 constant_template_horizontal_nonassignment
= mako
.template
.Template("""\
203 case ${op.get_enum_name()}:
204 ${op.c_expression['default']};
207 # This template is for binary operations that are horizontal. That is, the
208 # operation consumes a vector and produces a scalar.
209 constant_template_horizontal
= mako
.template
.Template("""\
210 case ${op.get_enum_name()}:
211 switch (op[0]->type->base_type) {
212 % for dst_type, src_types in op.signatures():
213 case ${src_types[0].glsl_type}:
214 data.${dst_type.union_field}[0] = ${op.get_c_expression(src_types)};
218 unreachable("invalid type");
222 # This template is for ir_binop_vector_extract.
223 constant_template_vector_extract
= mako
.template
.Template("""\
224 case ${op.get_enum_name()}: {
225 const int c = CLAMP(op[1]->value.i[0], 0,
226 (int) op[0]->type->vector_elements - 1);
228 switch (op[0]->type->base_type) {
229 % for dst_type, src_types in op.signatures():
230 case ${src_types[0].glsl_type}:
231 data.${dst_type.union_field}[0] = op[0]->value.${src_types[0].union_field}[c];
235 unreachable("invalid type");
240 # This template is for ir_triop_vector_insert.
241 constant_template_vector_insert
= mako
.template
.Template("""\
242 case ${op.get_enum_name()}: {
243 const unsigned idx = op[2]->value.u[0];
245 memcpy(&data, &op[0]->value, sizeof(data));
247 switch (this->type->base_type) {
248 % for dst_type, src_types in op.signatures():
249 case ${src_types[0].glsl_type}:
250 data.${dst_type.union_field}[idx] = op[1]->value.${src_types[0].union_field}[0];
254 unreachable("invalid type");
259 # This template is for ir_quadop_vector.
260 constant_template_vector
= mako
.template
.Template("""\
261 case ${op.get_enum_name()}:
262 for (unsigned c = 0; c < this->type->vector_elements; c++) {
263 switch (this->type->base_type) {
264 % for dst_type, src_types in op.signatures():
265 case ${src_types[0].glsl_type}:
266 data.${dst_type.union_field}[c] = op[c]->value.${src_types[0].union_field}[0];
270 unreachable("invalid type");
275 # This template is for ir_triop_lrp.
276 constant_template_lrp
= mako
.template
.Template("""\
277 case ${op.get_enum_name()}: {
278 assert(op[0]->type->base_type == GLSL_TYPE_FLOAT ||
279 op[0]->type->base_type == GLSL_TYPE_DOUBLE);
280 assert(op[1]->type->base_type == GLSL_TYPE_FLOAT ||
281 op[1]->type->base_type == GLSL_TYPE_DOUBLE);
282 assert(op[2]->type->base_type == GLSL_TYPE_FLOAT ||
283 op[2]->type->base_type == GLSL_TYPE_DOUBLE);
285 unsigned c2_inc = op[2]->type->is_scalar() ? 0 : 1;
286 for (unsigned c = 0, c2 = 0; c < components; c2 += c2_inc, c++) {
287 switch (this->type->base_type) {
288 % for dst_type, src_types in op.signatures():
289 case ${src_types[0].glsl_type}:
290 data.${dst_type.union_field}[c] = ${op.get_c_expression(src_types, ("c", "c", "c2"))};
294 unreachable("invalid type");
300 # This template is for ir_triop_csel. This expression is really unique
301 # because not all of the operands are the same type, and the second operand
302 # determines the type of the expression (instead of the first).
303 constant_template_csel
= mako
.template
.Template("""\
304 case ${op.get_enum_name()}:
305 for (unsigned c = 0; c < components; c++) {
306 switch (this->type->base_type) {
307 % for dst_type, src_types in op.signatures():
308 case ${src_types[1].glsl_type}:
309 data.${dst_type.union_field}[c] = ${op.get_c_expression(src_types)};
313 unreachable("invalid type");
319 vector_scalar_operation
= "vector-scalar"
320 horizontal_operation
= "horizontal"
321 types_identical_operation
= "identical"
322 non_assign_operation
= "nonassign"
323 mixed_type_operation
= "mixed"
325 class operation(object):
326 def __init__(self
, name
, num_operands
, printable_name
= None, source_types
= None, dest_type
= None, c_expression
= None, flags
= None, all_signatures
= None):
328 self
.num_operands
= num_operands
330 if printable_name
is None:
331 self
.printable_name
= name
333 self
.printable_name
= printable_name
335 self
.all_signatures
= all_signatures
337 if source_types
is None:
338 self
.source_types
= tuple()
340 self
.source_types
= source_types
342 self
.dest_type
= dest_type
344 if c_expression
is None:
345 self
.c_expression
= None
346 elif isinstance(c_expression
, str):
347 self
.c_expression
= {'default': c_expression
}
349 self
.c_expression
= c_expression
352 self
.flags
= frozenset()
353 elif isinstance(flags
, str):
354 self
.flags
= frozenset([flags
])
356 self
.flags
= frozenset(flags
)
359 def get_enum_name(self
):
360 return "ir_{}op_{}".format(("un", "bin", "tri", "quad")[self
.num_operands
-1], self
.name
)
363 def get_template(self
):
364 if self
.c_expression
is None:
367 if horizontal_operation
in self
.flags
:
368 if non_assign_operation
in self
.flags
:
369 return constant_template_horizontal_nonassignment
.render(op
=self
)
370 elif types_identical_operation
in self
.flags
:
371 return constant_template_horizontal_single_implementation
.render(op
=self
)
373 return constant_template_horizontal
.render(op
=self
)
375 if self
.num_operands
== 2:
376 if self
.name
== "mul":
377 return constant_template_mul
.render(op
=self
)
378 elif self
.name
== "vector_extract":
379 return constant_template_vector_extract
.render(op
=self
)
380 elif vector_scalar_operation
in self
.flags
:
381 return constant_template_vector_scalar
.render(op
=self
)
382 elif self
.num_operands
== 3:
383 if self
.name
== "vector_insert":
384 return constant_template_vector_insert
.render(op
=self
)
385 elif self
.name
== "lrp":
386 return constant_template_lrp
.render(op
=self
)
387 elif self
.name
== "csel":
388 return constant_template_csel
.render(op
=self
)
389 elif self
.num_operands
== 4:
390 if self
.name
== "vector":
391 return constant_template_vector
.render(op
=self
)
393 return constant_template_common
.render(op
=self
)
396 def get_c_expression(self
, types
, indices
=("c", "c", "c")):
397 src0
= "op[0]->value.{}[{}]".format(types
[0].union_field
, indices
[0])
398 src1
= "op[1]->value.{}[{}]".format(types
[1].union_field
, indices
[1]) if len(types
) >= 2 else "ERROR"
399 src2
= "op[2]->value.{}[{}]".format(types
[2].union_field
, indices
[2]) if len(types
) >= 3 else "ERROR"
400 src3
= "op[3]->value.{}[c]".format(types
[3].union_field
) if len(types
) >= 4 else "ERROR"
402 expr
= self
.c_expression
[types
[0].union_field
] if types
[0].union_field
in self
.c_expression
else self
.c_expression
['default']
404 return expr
.format(src0
=src0
,
410 def signatures(self
):
411 if self
.all_signatures
is not None:
412 return self
.all_signatures
414 return type_signature_iter(self
.dest_type
, self
.source_types
, self
.num_operands
)
417 ir_expression_operation
= [
418 operation("bit_not", 1, printable_name
="~", source_types
=integer_types
, c_expression
="~ {src0}"),
419 operation("logic_not", 1, printable_name
="!", source_types
=(bool_type
,), c_expression
="!{src0}"),
420 operation("neg", 1, source_types
=numeric_types
, c_expression
={'u': "-((int) {src0})", 'default': "-{src0}"}),
421 operation("abs", 1, source_types
=signed_numeric_types
, c_expression
={'i': "{src0} < 0 ? -{src0} : {src0}", 'f': "fabsf({src0})", 'd': "fabs({src0})"}),
422 operation("sign", 1, source_types
=signed_numeric_types
, c_expression
={'i': "({src0} > 0) - ({src0} < 0)", 'f': "float(({src0} > 0.0F) - ({src0} < 0.0F))", 'd': "double(({src0} > 0.0) - ({src0} < 0.0))"}),
423 operation("rcp", 1, source_types
=real_types
, c_expression
={'f': "{src0} != 0.0F ? 1.0F / {src0} : 0.0F", 'd': "{src0} != 0.0 ? 1.0 / {src0} : 0.0"}),
424 operation("rsq", 1, source_types
=real_types
, c_expression
={'f': "1.0F / sqrtf({src0})", 'd': "1.0 / sqrt({src0})"}),
425 operation("sqrt", 1, source_types
=real_types
, c_expression
={'f': "sqrtf({src0})", 'd': "sqrt({src0})"}),
426 operation("exp", 1, source_types
=(float_type
,), c_expression
="expf({src0})"), # Log base e on gentype
427 operation("log", 1, source_types
=(float_type
,), c_expression
="logf({src0})"), # Natural log on gentype
428 operation("exp2", 1, source_types
=(float_type
,), c_expression
="exp2f({src0})"),
429 operation("log2", 1, source_types
=(float_type
,), c_expression
="log2f({src0})"),
431 # Float-to-integer conversion.
432 operation("f2i", 1, source_types
=(float_type
,), dest_type
=int_type
, c_expression
="(int) {src0}"),
433 # Float-to-unsigned conversion.
434 operation("f2u", 1, source_types
=(float_type
,), dest_type
=uint_type
, c_expression
="(unsigned) {src0}"),
435 # Integer-to-float conversion.
436 operation("i2f", 1, source_types
=(int_type
,), dest_type
=float_type
, c_expression
="(float) {src0}"),
437 # Float-to-boolean conversion
438 operation("f2b", 1, source_types
=(float_type
,), dest_type
=bool_type
, c_expression
="{src0} != 0.0F ? true : false"),
439 # Boolean-to-float conversion
440 operation("b2f", 1, source_types
=(bool_type
,), dest_type
=float_type
, c_expression
="{src0} ? 1.0F : 0.0F"),
441 # int-to-boolean conversion
442 operation("i2b", 1, source_types
=integer_types
, dest_type
=bool_type
, c_expression
="{src0} ? true : false"),
443 # Boolean-to-int conversion
444 operation("b2i", 1, source_types
=(bool_type
,), dest_type
=int_type
, c_expression
="{src0} ? 1 : 0"),
445 # Unsigned-to-float conversion.
446 operation("u2f", 1, source_types
=(uint_type
,), dest_type
=float_type
, c_expression
="(float) {src0}"),
447 # Integer-to-unsigned conversion.
448 operation("i2u", 1, source_types
=(int_type
,), dest_type
=uint_type
, c_expression
="{src0}"),
449 # Unsigned-to-integer conversion.
450 operation("u2i", 1, source_types
=(uint_type
,), dest_type
=int_type
, c_expression
="{src0}"),
451 # Double-to-float conversion.
452 operation("d2f", 1, source_types
=(double_type
,), dest_type
=float_type
, c_expression
="{src0}"),
453 # Float-to-double conversion.
454 operation("f2d", 1, source_types
=(float_type
,), dest_type
=double_type
, c_expression
="{src0}"),
455 # Double-to-integer conversion.
456 operation("d2i", 1, source_types
=(double_type
,), dest_type
=int_type
, c_expression
="{src0}"),
457 # Integer-to-double conversion.
458 operation("i2d", 1, source_types
=(int_type
,), dest_type
=double_type
, c_expression
="{src0}"),
459 # Double-to-unsigned conversion.
460 operation("d2u", 1, source_types
=(double_type
,), dest_type
=uint_type
, c_expression
="{src0}"),
461 # Unsigned-to-double conversion.
462 operation("u2d", 1, source_types
=(uint_type
,), dest_type
=double_type
, c_expression
="{src0}"),
463 # Double-to-boolean conversion.
464 operation("d2b", 1, source_types
=(double_type
,), dest_type
=bool_type
, c_expression
="{src0} != 0.0"),
465 # 'Bit-identical int-to-float "conversion"
466 operation("bitcast_i2f", 1, source_types
=(int_type
,), dest_type
=float_type
, c_expression
="bitcast_u2f({src0})"),
467 # 'Bit-identical float-to-int "conversion"
468 operation("bitcast_f2i", 1, source_types
=(float_type
,), dest_type
=int_type
, c_expression
="bitcast_f2u({src0})"),
469 # 'Bit-identical uint-to-float "conversion"
470 operation("bitcast_u2f", 1, source_types
=(uint_type
,), dest_type
=float_type
, c_expression
="bitcast_u2f({src0})"),
471 # 'Bit-identical float-to-uint "conversion"
472 operation("bitcast_f2u", 1, source_types
=(float_type
,), dest_type
=uint_type
, c_expression
="bitcast_f2u({src0})"),
474 # Unary floating-point rounding operations.
475 operation("trunc", 1, source_types
=real_types
, c_expression
={'f': "truncf({src0})", 'd': "trunc({src0})"}),
476 operation("ceil", 1, source_types
=real_types
, c_expression
={'f': "ceilf({src0})", 'd': "ceil({src0})"}),
477 operation("floor", 1, source_types
=real_types
, c_expression
={'f': "floorf({src0})", 'd': "floor({src0})"}),
478 operation("fract", 1, source_types
=real_types
, c_expression
={'f': "{src0} - floorf({src0})", 'd': "{src0} - floor({src0})"}),
479 operation("round_even", 1, source_types
=real_types
, c_expression
={'f': "_mesa_roundevenf({src0})", 'd': "_mesa_roundeven({src0})"}),
481 # Trigonometric operations.
482 operation("sin", 1, source_types
=(float_type
,), c_expression
="sinf({src0})"),
483 operation("cos", 1, source_types
=(float_type
,), c_expression
="cosf({src0})"),
485 # Partial derivatives.
486 operation("dFdx", 1, source_types
=(float_type
,), c_expression
="0.0f"),
487 operation("dFdx_coarse", 1, printable_name
="dFdxCoarse", source_types
=(float_type
,), c_expression
="0.0f"),
488 operation("dFdx_fine", 1, printable_name
="dFdxFine", source_types
=(float_type
,), c_expression
="0.0f"),
489 operation("dFdy", 1, source_types
=(float_type
,), c_expression
="0.0f"),
490 operation("dFdy_coarse", 1, printable_name
="dFdyCoarse", source_types
=(float_type
,), c_expression
="0.0f"),
491 operation("dFdy_fine", 1, printable_name
="dFdyFine", source_types
=(float_type
,), c_expression
="0.0f"),
493 # Floating point pack and unpack operations.
494 operation("pack_snorm_2x16", 1, printable_name
="packSnorm2x16", source_types
=(float_type
,), dest_type
=uint_type
, c_expression
="pack_2x16(pack_snorm_1x16, op[0]->value.f[0], op[0]->value.f[1])", flags
=horizontal_operation
),
495 operation("pack_snorm_4x8", 1, printable_name
="packSnorm4x8", source_types
=(float_type
,), dest_type
=uint_type
, c_expression
="pack_4x8(pack_snorm_1x8, op[0]->value.f[0], op[0]->value.f[1], op[0]->value.f[2], op[0]->value.f[3])", flags
=horizontal_operation
),
496 operation("pack_unorm_2x16", 1, printable_name
="packUnorm2x16", source_types
=(float_type
,), dest_type
=uint_type
, c_expression
="pack_2x16(pack_unorm_1x16, op[0]->value.f[0], op[0]->value.f[1])", flags
=horizontal_operation
),
497 operation("pack_unorm_4x8", 1, printable_name
="packUnorm4x8", source_types
=(float_type
,), dest_type
=uint_type
, c_expression
="pack_4x8(pack_unorm_1x8, op[0]->value.f[0], op[0]->value.f[1], op[0]->value.f[2], op[0]->value.f[3])", flags
=horizontal_operation
),
498 operation("pack_half_2x16", 1, printable_name
="packHalf2x16", source_types
=(float_type
,), dest_type
=uint_type
, c_expression
="pack_2x16(pack_half_1x16, op[0]->value.f[0], op[0]->value.f[1])", flags
=horizontal_operation
),
499 operation("unpack_snorm_2x16", 1, printable_name
="unpackSnorm2x16", source_types
=(uint_type
,), dest_type
=float_type
, c_expression
="unpack_2x16(unpack_snorm_1x16, op[0]->value.u[0], &data.f[0], &data.f[1])", flags
=frozenset((horizontal_operation
, non_assign_operation
))),
500 operation("unpack_snorm_4x8", 1, printable_name
="unpackSnorm4x8", source_types
=(uint_type
,), dest_type
=float_type
, c_expression
="unpack_4x8(unpack_snorm_1x8, op[0]->value.u[0], &data.f[0], &data.f[1], &data.f[2], &data.f[3])", flags
=frozenset((horizontal_operation
, non_assign_operation
))),
501 operation("unpack_unorm_2x16", 1, printable_name
="unpackUnorm2x16", source_types
=(uint_type
,), dest_type
=float_type
, c_expression
="unpack_2x16(unpack_unorm_1x16, op[0]->value.u[0], &data.f[0], &data.f[1])", flags
=frozenset((horizontal_operation
, non_assign_operation
))),
502 operation("unpack_unorm_4x8", 1, printable_name
="unpackUnorm4x8", source_types
=(uint_type
,), dest_type
=float_type
, c_expression
="unpack_4x8(unpack_unorm_1x8, op[0]->value.u[0], &data.f[0], &data.f[1], &data.f[2], &data.f[3])", flags
=frozenset((horizontal_operation
, non_assign_operation
))),
503 operation("unpack_half_2x16", 1, printable_name
="unpackHalf2x16", source_types
=(uint_type
,), dest_type
=float_type
, c_expression
="unpack_2x16(unpack_half_1x16, op[0]->value.u[0], &data.f[0], &data.f[1])", flags
=frozenset((horizontal_operation
, non_assign_operation
))),
505 # Bit operations, part of ARB_gpu_shader5.
506 operation("bitfield_reverse", 1, source_types
=integer_types
, c_expression
="bitfield_reverse({src0})"),
507 operation("bit_count", 1, source_types
=integer_types
, dest_type
=int_type
, c_expression
="_mesa_bitcount({src0})"),
508 operation("find_msb", 1, source_types
=integer_types
, dest_type
=int_type
, c_expression
={'u': "find_msb_uint({src0})", 'i': "find_msb_int({src0})"}),
509 operation("find_lsb", 1, source_types
=integer_types
, dest_type
=int_type
, c_expression
="find_msb_uint({src0} & -{src0})"),
511 operation("saturate", 1, printable_name
="sat", source_types
=(float_type
,), c_expression
="CLAMP({src0}, 0.0f, 1.0f)"),
513 # Double packing, part of ARB_gpu_shader_fp64.
514 operation("pack_double_2x32", 1, printable_name
="packDouble2x32", source_types
=(uint_type
,), dest_type
=double_type
, c_expression
="memcpy(&data.d[0], &op[0]->value.u[0], sizeof(double))", flags
=frozenset((horizontal_operation
, non_assign_operation
))),
515 operation("unpack_double_2x32", 1, printable_name
="unpackDouble2x32", source_types
=(double_type
,), dest_type
=uint_type
, c_expression
="memcpy(&data.u[0], &op[0]->value.d[0], sizeof(double))", flags
=frozenset((horizontal_operation
, non_assign_operation
))),
517 operation("frexp_sig", 1),
518 operation("frexp_exp", 1),
520 operation("noise", 1),
522 operation("subroutine_to_int", 1),
524 # Interpolate fs input at centroid
526 # operand0 is the fs input.
527 operation("interpolate_at_centroid", 1),
529 # Ask the driver for the total size of a buffer block.
530 # operand0 is the ir_constant buffer block index in the linked shader.
531 operation("get_buffer_size", 1),
533 # Calculate length of an unsized array inside a buffer block.
534 # This opcode is going to be replaced in a lowering pass inside
537 # operand0 is the unsized array's ir_value for the calculation
539 operation("ssbo_unsized_array_length", 1),
541 # Vote among threads on the value of the boolean argument.
542 operation("vote_any", 1),
543 operation("vote_all", 1),
544 operation("vote_eq", 1),
546 operation("add", 2, printable_name
="+", source_types
=numeric_types
, c_expression
="{src0} + {src1}", flags
=vector_scalar_operation
),
547 operation("sub", 2, printable_name
="-", source_types
=numeric_types
, c_expression
="{src0} - {src1}", flags
=vector_scalar_operation
),
548 # "Floating-point or low 32-bit integer multiply."
549 operation("mul", 2, printable_name
="*", source_types
=numeric_types
, c_expression
="{src0} * {src1}"),
550 operation("imul_high", 2), # Calculates the high 32-bits of a 64-bit multiply.
551 operation("div", 2, printable_name
="/", source_types
=numeric_types
, c_expression
={'u': "{src1} == 0 ? 0 : {src0} / {src1}", 'i': "{src1} == 0 ? 0 : {src0} / {src1}", 'default': "{src0} / {src1}"}, flags
=vector_scalar_operation
),
553 # Returns the carry resulting from the addition of the two arguments.
554 operation("carry", 2),
556 # Returns the borrow resulting from the subtraction of the second argument
557 # from the first argument.
558 operation("borrow", 2),
560 # Either (vector % vector) or (vector % scalar)
562 # We don't use fmod because it rounds toward zero; GLSL specifies the use
564 operation("mod", 2, printable_name
="%", source_types
=numeric_types
, c_expression
={'u': "{src1} == 0 ? 0 : {src0} % {src1}", 'i': "{src1} == 0 ? 0 : {src0} % {src1}", 'f': "{src0} - {src1} * floorf({src0} / {src1})", 'd': "{src0} - {src1} * floor({src0} / {src1})"}, flags
=vector_scalar_operation
),
566 # Binary comparison operators which return a boolean vector.
567 # The type of both operands must be equal.
568 operation("less", 2, printable_name
="<", source_types
=numeric_types
, dest_type
=bool_type
, c_expression
="{src0} < {src1}"),
569 operation("greater", 2, printable_name
=">", source_types
=numeric_types
, dest_type
=bool_type
, c_expression
="{src0} > {src1}"),
570 operation("lequal", 2, printable_name
="<=", source_types
=numeric_types
, dest_type
=bool_type
, c_expression
="{src0} <= {src1}"),
571 operation("gequal", 2, printable_name
=">=", source_types
=numeric_types
, dest_type
=bool_type
, c_expression
="{src0} >= {src1}"),
572 operation("equal", 2, printable_name
="==", source_types
=all_types
, dest_type
=bool_type
, c_expression
="{src0} == {src1}"),
573 operation("nequal", 2, printable_name
="!=", source_types
=all_types
, dest_type
=bool_type
, c_expression
="{src0} != {src1}"),
575 # Returns single boolean for whether all components of operands[0]
576 # equal the components of operands[1].
577 operation("all_equal", 2, source_types
=all_types
, dest_type
=bool_type
, c_expression
="op[0]->has_value(op[1])", flags
=frozenset((horizontal_operation
, types_identical_operation
))),
579 # Returns single boolean for whether any component of operands[0]
580 # is not equal to the corresponding component of operands[1].
581 operation("any_nequal", 2, source_types
=all_types
, dest_type
=bool_type
, c_expression
="!op[0]->has_value(op[1])", flags
=frozenset((horizontal_operation
, types_identical_operation
))),
583 # Bit-wise binary operations.
584 operation("lshift", 2, printable_name
="<<", source_types
=integer_types
, c_expression
="{src0} << {src1}", flags
=frozenset((vector_scalar_operation
, mixed_type_operation
))),
585 operation("rshift", 2, printable_name
=">>", source_types
=integer_types
, c_expression
="{src0} >> {src1}", flags
=frozenset((vector_scalar_operation
, mixed_type_operation
))),
586 operation("bit_and", 2, printable_name
="&", source_types
=integer_types
, c_expression
="{src0} & {src1}", flags
=vector_scalar_operation
),
587 operation("bit_xor", 2, printable_name
="^", source_types
=integer_types
, c_expression
="{src0} ^ {src1}", flags
=vector_scalar_operation
),
588 operation("bit_or", 2, printable_name
="|", source_types
=integer_types
, c_expression
="{src0} | {src1}", flags
=vector_scalar_operation
),
590 operation("logic_and", 2, printable_name
="&&", source_types
=(bool_type
,), c_expression
="{src0} && {src1}"),
591 operation("logic_xor", 2, printable_name
="^^", source_types
=(bool_type
,), c_expression
="{src0} != {src1}"),
592 operation("logic_or", 2, printable_name
="||", source_types
=(bool_type
,), c_expression
="{src0} || {src1}"),
594 operation("dot", 2, source_types
=real_types
, c_expression
={'f': "dot_f(op[0], op[1])", 'd': "dot_d(op[0], op[1])"}, flags
=horizontal_operation
),
595 operation("min", 2, source_types
=numeric_types
, c_expression
="MIN2({src0}, {src1})", flags
=vector_scalar_operation
),
596 operation("max", 2, source_types
=numeric_types
, c_expression
="MAX2({src0}, {src1})", flags
=vector_scalar_operation
),
598 operation("pow", 2, source_types
=(float_type
,), c_expression
="powf({src0}, {src1})"),
600 # Load a value the size of a given GLSL type from a uniform block.
602 # operand0 is the ir_constant uniform block index in the linked shader.
603 # operand1 is a byte offset within the uniform block.
604 operation("ubo_load", 2),
606 # Multiplies a number by two to a power, part of ARB_gpu_shader5.
607 operation("ldexp", 2,
608 all_signatures
=((float_type
, (float_type
, int_type
)),
609 (double_type
, (double_type
, int_type
))),
610 c_expression
={'f': "ldexpf_flush_subnormal({src0}, {src1})",
611 'd': "ldexp_flush_subnormal({src0}, {src1})"}),
613 # Extract a scalar from a vector
615 # operand0 is the vector
616 # operand1 is the index of the field to read from operand0
617 operation("vector_extract", 2, source_types
=all_types
, c_expression
="anything-except-None"),
619 # Interpolate fs input at offset
621 # operand0 is the fs input
622 # operand1 is the offset from the pixel center
623 operation("interpolate_at_offset", 2),
625 # Interpolate fs input at sample position
627 # operand0 is the fs input
628 # operand1 is the sample ID
629 operation("interpolate_at_sample", 2),
631 # Fused floating-point multiply-add, part of ARB_gpu_shader5.
632 operation("fma", 3, source_types
=real_types
, c_expression
="{src0} * {src1} + {src2}"),
634 operation("lrp", 3, source_types
=real_types
, c_expression
={'f': "{src0} * (1.0f - {src2}) + ({src1} * {src2})", 'd': "{src0} * (1.0 - {src2}) + ({src1} * {src2})"}),
638 # A vector conditional select instruction (like ?:, but operating per-
639 # component on vectors).
641 # See also lower_instructions_visitor::ldexp_to_arith
643 all_signatures
=zip(all_types
, zip(len(all_types
) * (bool_type
,), all_types
, all_types
)),
644 c_expression
="{src0} ? {src1} : {src2}"),
646 operation("bitfield_extract", 3,
647 all_signatures
=((int_type
, (uint_type
, int_type
, int_type
)),
648 (int_type
, (int_type
, int_type
, int_type
))),
649 c_expression
={'u': "bitfield_extract_uint({src0}, {src1}, {src2})",
650 'i': "bitfield_extract_int({src0}, {src1}, {src2})"}),
652 # Generate a value with one field of a vector changed
654 # operand0 is the vector
655 # operand1 is the value to write into the vector result
656 # operand2 is the index in operand0 to be modified
657 operation("vector_insert", 3, source_types
=all_types
, c_expression
="anything-except-None"),
659 operation("bitfield_insert", 4,
660 all_signatures
=((uint_type
, (uint_type
, uint_type
, int_type
, int_type
)),
661 (int_type
, (int_type
, int_type
, int_type
, int_type
))),
662 c_expression
="bitfield_insert({src0}, {src1}, {src2}, {src3})"),
664 operation("vector", 4, source_types
=all_types
, c_expression
="anything-except-None"),
668 if __name__
== "__main__":
670 * Copyright (C) 2010 Intel Corporation
672 * Permission is hereby granted, free of charge, to any person obtaining a
673 * copy of this software and associated documentation files (the "Software"),
674 * to deal in the Software without restriction, including without limitation
675 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
676 * and/or sell copies of the Software, and to permit persons to whom the
677 * Software is furnished to do so, subject to the following conditions:
679 * The above copyright notice and this permission notice (including the next
680 * paragraph) shall be included in all copies or substantial portions of the
683 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
684 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
685 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
686 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
687 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
688 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
689 * DEALINGS IN THE SOFTWARE.
692 enum_template
= mako
.template
.Template(copyright
+ """
693 enum ir_expression_operation {
694 % for item in values:
695 ${item.get_enum_name()},
698 /* Sentinels marking the last of each kind of operation. */
700 ir_last_${("un", "bin", "tri", "quad")[item.num_operands - 1]}op = ${item.get_enum_name()},
702 ir_last_opcode = ir_quadop_${lasts[3].name}
705 strings_template
= mako
.template
.Template(copyright
+ """
706 const char *const ir_expression_operation_strings[] = {
707 % for item in values:
708 "${item.printable_name}",
712 constant_template
= mako
.template
.Template("""\
713 switch (this->operation) {
715 % if op.c_expression is not None:
721 /* FINISHME: Should handle all expression types. */
726 if sys
.argv
[1] == "enum":
727 lasts
= [None, None, None, None]
728 for item
in reversed(ir_expression_operation
):
729 i
= item
.num_operands
- 1
733 print(enum_template
.render(values
=ir_expression_operation
,
735 elif sys
.argv
[1] == "strings":
736 print(strings_template
.render(values
=ir_expression_operation
))
737 elif sys
.argv
[1] == "constant":
738 print(constant_template
.render(values
=ir_expression_operation
))