3 * Copyright © 2009 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
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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
22 * DEALINGS IN THE SOFTWARE.
31 #include "shader_enums.h"
33 #include "c11/threads.h"
34 #include "util/macros.h"
37 #include "main/config.h"
46 struct _mesa_glsl_parse_state
;
47 struct glsl_symbol_table
;
50 glsl_type_singleton_init_or_ref();
53 glsl_type_singleton_decref();
56 _mesa_glsl_initialize_types(struct _mesa_glsl_parse_state
*state
);
58 void encode_type_to_blob(struct blob
*blob
, const struct glsl_type
*type
);
60 const struct glsl_type
*decode_type_from_blob(struct blob_reader
*blob
);
67 /* Note: GLSL_TYPE_UINT, GLSL_TYPE_INT, and GLSL_TYPE_FLOAT must be 0, 1,
68 * and 2 so that they will fit in the 2 bits of glsl_type::sampled_type.
84 GLSL_TYPE_ATOMIC_UINT
,
94 /* Return the bit size of a type. Note that this differs from
95 * glsl_get_bit_size in that it returns 32 bits for bools, whereas at
96 * the NIR level we would want to return 1 bit for bools.
98 static unsigned glsl_base_type_bit_size(enum glsl_base_type type
)
104 case GLSL_TYPE_FLOAT
: /* TODO handle mediump */
105 case GLSL_TYPE_SUBROUTINE
:
108 case GLSL_TYPE_FLOAT16
:
109 case GLSL_TYPE_UINT16
:
110 case GLSL_TYPE_INT16
:
113 case GLSL_TYPE_UINT8
:
117 case GLSL_TYPE_DOUBLE
:
118 case GLSL_TYPE_INT64
:
119 case GLSL_TYPE_UINT64
:
120 case GLSL_TYPE_IMAGE
:
121 case GLSL_TYPE_SAMPLER
:
125 /* For GLSL_TYPE_STRUCT etc, it should be ok to return 0. This usually
126 * happens when calling this method through is_64bit and is_16bit
135 static inline bool glsl_base_type_is_16bit(enum glsl_base_type type
)
137 return glsl_base_type_bit_size(type
) == 16;
140 static inline bool glsl_base_type_is_64bit(enum glsl_base_type type
)
142 return glsl_base_type_bit_size(type
) == 64;
145 static inline bool glsl_base_type_is_integer(enum glsl_base_type type
)
147 return type
== GLSL_TYPE_UINT8
||
148 type
== GLSL_TYPE_INT8
||
149 type
== GLSL_TYPE_UINT16
||
150 type
== GLSL_TYPE_INT16
||
151 type
== GLSL_TYPE_UINT
||
152 type
== GLSL_TYPE_INT
||
153 type
== GLSL_TYPE_UINT64
||
154 type
== GLSL_TYPE_INT64
||
155 type
== GLSL_TYPE_BOOL
||
156 type
== GLSL_TYPE_SAMPLER
||
157 type
== GLSL_TYPE_IMAGE
;
160 static inline unsigned int
161 glsl_base_type_get_bit_size(const enum glsl_base_type base_type
)
169 case GLSL_TYPE_FLOAT
: /* TODO handle mediump */
170 case GLSL_TYPE_SUBROUTINE
:
173 case GLSL_TYPE_FLOAT16
:
174 case GLSL_TYPE_UINT16
:
175 case GLSL_TYPE_INT16
:
178 case GLSL_TYPE_UINT8
:
182 case GLSL_TYPE_DOUBLE
:
183 case GLSL_TYPE_INT64
:
184 case GLSL_TYPE_UINT64
:
185 case GLSL_TYPE_IMAGE
:
186 case GLSL_TYPE_SAMPLER
:
190 unreachable("unknown base type");
196 enum glsl_sampler_dim
{
197 GLSL_SAMPLER_DIM_1D
= 0,
200 GLSL_SAMPLER_DIM_CUBE
,
201 GLSL_SAMPLER_DIM_RECT
,
202 GLSL_SAMPLER_DIM_BUF
,
203 GLSL_SAMPLER_DIM_EXTERNAL
,
205 GLSL_SAMPLER_DIM_SUBPASS
, /* for vulkan input attachments */
206 GLSL_SAMPLER_DIM_SUBPASS_MS
, /* for multisampled vulkan input attachments */
209 enum glsl_matrix_layout
{
211 * The layout of the matrix is inherited from the object containing the
212 * matrix (the top level structure or the uniform block).
214 GLSL_MATRIX_LAYOUT_INHERITED
,
217 * Explicit column-major layout
219 * If a uniform block doesn't have an explicit layout set, it will default
222 GLSL_MATRIX_LAYOUT_COLUMN_MAJOR
,
227 GLSL_MATRIX_LAYOUT_ROW_MAJOR
231 GLSL_PRECISION_NONE
= 0,
233 GLSL_PRECISION_MEDIUM
,
239 #include "util/ralloc.h"
240 #include "main/menums.h" /* for gl_texture_index, C++'s enum rules are broken */
244 glsl_base_type base_type
:8;
246 glsl_base_type sampled_type
:8; /**< Type of data returned using this
247 * sampler or image. Only \c
248 * GLSL_TYPE_FLOAT, \c GLSL_TYPE_INT,
249 * and \c GLSL_TYPE_UINT are valid.
252 unsigned sampler_dimensionality
:4; /**< \see glsl_sampler_dim */
253 unsigned sampler_shadow
:1;
254 unsigned sampler_array
:1;
255 unsigned interface_packing
:2;
256 unsigned interface_row_major
:1;
259 * For \c GLSL_TYPE_STRUCT this specifies if the struct is packed or not.
261 * Only used for Compute kernels
266 glsl_type() : mem_ctx(NULL
)
268 // Dummy constructor, just for the sake of ASSERT_BITFIELD_SIZE.
273 * \name Vector and matrix element counts
275 * For scalars, each of these values will be 1. For non-numeric types
279 uint8_t vector_elements
; /**< 1, 2, 3, or 4 vector elements. */
280 uint8_t matrix_columns
; /**< 1, 2, 3, or 4 matrix columns. */
284 * For \c GLSL_TYPE_ARRAY, this is the length of the array. For
285 * \c GLSL_TYPE_STRUCT or \c GLSL_TYPE_INTERFACE, it is the number of
286 * elements in the structure and the number of values pointed to by
287 * \c fields.structure (below).
292 * Name of the data type
294 * Will never be \c NULL.
299 * Explicit array, matrix, or vector stride. This is used to communicate
300 * explicit array layouts from SPIR-V. Should be 0 if the type has no
303 unsigned explicit_stride
;
306 * Subtype of composite data types.
309 const struct glsl_type
*array
; /**< Type of array elements. */
310 struct glsl_function_param
*parameters
; /**< Parameters to function. */
311 struct glsl_struct_field
*structure
; /**< List of struct fields. */
315 * \name Pointers to various public type singletons
319 #define DECL_TYPE(NAME, ...) \
320 static const glsl_type *const NAME##_type;
322 #define STRUCT_TYPE(NAME) \
323 static const glsl_type *const struct_##NAME##_type;
324 #include "compiler/builtin_type_macros.h"
328 * Convenience accessors for vector types (shorter than get_instance()).
331 static const glsl_type
*vec(unsigned components
, const glsl_type
*const ts
[]);
332 static const glsl_type
*vec(unsigned components
);
333 static const glsl_type
*f16vec(unsigned components
);
334 static const glsl_type
*dvec(unsigned components
);
335 static const glsl_type
*ivec(unsigned components
);
336 static const glsl_type
*uvec(unsigned components
);
337 static const glsl_type
*bvec(unsigned components
);
338 static const glsl_type
*i64vec(unsigned components
);
339 static const glsl_type
*u64vec(unsigned components
);
340 static const glsl_type
*i16vec(unsigned components
);
341 static const glsl_type
*u16vec(unsigned components
);
342 static const glsl_type
*i8vec(unsigned components
);
343 static const glsl_type
*u8vec(unsigned components
);
347 * For numeric and boolean derived types returns the basic scalar type
349 * If the type is a numeric or boolean scalar, vector, or matrix type,
350 * this function gets the scalar type of the individual components. For
351 * all other types, including arrays of numeric or boolean types, the
352 * error type is returned.
354 const glsl_type
*get_base_type() const;
357 * Get the basic scalar type which this type aggregates.
359 * If the type is a numeric or boolean scalar, vector, or matrix, or an
360 * array of any of those, this function gets the scalar type of the
361 * individual components. For structs and arrays of structs, this function
362 * returns the struct type. For samplers and arrays of samplers, this
363 * function returns the sampler type.
365 const glsl_type
*get_scalar_type() const;
368 * Gets the "bare" type without any decorations or layout information.
370 const glsl_type
*get_bare_type() const;
373 * Get the instance of a built-in scalar, vector, or matrix type
375 static const glsl_type
*get_instance(unsigned base_type
, unsigned rows
,
377 unsigned explicit_stride
= 0,
378 bool row_major
= false);
381 * Get the instance of a sampler type
383 static const glsl_type
*get_sampler_instance(enum glsl_sampler_dim dim
,
386 glsl_base_type type
);
388 static const glsl_type
*get_image_instance(enum glsl_sampler_dim dim
,
389 bool array
, glsl_base_type type
);
392 * Get the instance of an array type
394 static const glsl_type
*get_array_instance(const glsl_type
*base
,
396 unsigned explicit_stride
= 0);
399 * Get the instance of a record type
401 static const glsl_type
*get_struct_instance(const glsl_struct_field
*fields
,
404 bool packed
= false);
407 * Get the instance of an interface block type
409 static const glsl_type
*get_interface_instance(const glsl_struct_field
*fields
,
411 enum glsl_interface_packing packing
,
413 const char *block_name
);
416 * Get the instance of an subroutine type
418 static const glsl_type
*get_subroutine_instance(const char *subroutine_name
);
421 * Get the instance of a function type
423 static const glsl_type
*get_function_instance(const struct glsl_type
*return_type
,
424 const glsl_function_param
*parameters
,
425 unsigned num_params
);
428 * Get the type resulting from a multiplication of \p type_a * \p type_b
430 static const glsl_type
*get_mul_type(const glsl_type
*type_a
,
431 const glsl_type
*type_b
);
434 * Query the total number of scalars that make up a scalar, vector or matrix
436 unsigned components() const
438 return vector_elements
* matrix_columns
;
442 * Calculate the number of components slots required to hold this type
444 * This is used to determine how many uniform or varying locations a type
447 unsigned component_slots() const;
450 * Calculate offset between the base location of the struct in
451 * uniform storage and a struct member.
452 * For the initial call, length is the index of the member to find the
455 unsigned struct_location_offset(unsigned length
) const;
458 * Calculate the number of unique values from glGetUniformLocation for the
459 * elements of the type.
461 * This is used to allocate slots in the UniformRemapTable, the amount of
462 * locations may not match with actual used storage space by the driver.
464 unsigned uniform_locations() const;
467 * Used to count the number of varyings contained in the type ignoring
468 * innermost array elements.
470 unsigned varying_count() const;
473 * Calculate the number of attribute slots required to hold this type
475 * This implements the language rules of GLSL 1.50 for counting the number
476 * of slots used by a vertex attribute. It also determines the number of
477 * varying slots the type will use up in the absence of varying packing
478 * (and thus, it can be used to measure the number of varying slots used by
479 * the varyings that are generated by lower_packed_varyings).
481 * For vertex shader attributes - doubles only take one slot.
482 * For inter-shader varyings - dvec3/dvec4 take two slots.
484 * Vulkan doesn’t make this distinction so the argument should always be
487 unsigned count_attribute_slots(bool is_gl_vertex_input
) const;
490 * Alignment in bytes of the start of this type in a std140 uniform
493 unsigned std140_base_alignment(bool row_major
) const;
495 /** Size in bytes of this type in a std140 uniform block.
497 * Note that this is not GL_UNIFORM_SIZE (which is the number of
498 * elements in the array)
500 unsigned std140_size(bool row_major
) const;
503 * Gets an explicitly laid out type with the std140 layout.
505 const glsl_type
*get_explicit_std140_type(bool row_major
) const;
508 * Alignment in bytes of the start of this type in a std430 shader
511 unsigned std430_base_alignment(bool row_major
) const;
514 * Calculate array stride in bytes of this type in a std430 shader storage
517 unsigned std430_array_stride(bool row_major
) const;
520 * Size in bytes of this type in a std430 shader storage block.
522 * Note that this is not GL_BUFFER_SIZE
524 unsigned std430_size(bool row_major
) const;
527 * Gets an explicitly laid out type with the std430 layout.
529 const glsl_type
*get_explicit_std430_type(bool row_major
) const;
532 * Gets an explicitly laid out interface type.
534 const glsl_type
*get_explicit_interface_type(bool supports_std430
) const;
537 * Alignment in bytes of the start of this type in OpenCL memory.
539 unsigned cl_alignment() const;
542 * Size in bytes of this type in OpenCL memory
544 unsigned cl_size() const;
547 * Size in bytes of this type based on its explicit data.
549 * When using SPIR-V shaders (ARB_gl_spirv), memory layouts are expressed
550 * through explicit offset, stride and matrix layout, so the size
551 * can/should be computed used those values.
553 * Note that the value returned by this method is only correct if such
554 * values are set, so only with SPIR-V shaders. Should not be used with
557 unsigned explicit_size(bool align_to_stride
=false) const;
560 * \brief Can this type be implicitly converted to another?
562 * \return True if the types are identical or if this type can be converted
563 * to \c desired according to Section 4.1.10 of the GLSL spec.
566 * From page 25 (31 of the pdf) of the GLSL 1.50 spec, Section 4.1.10
567 * Implicit Conversions:
569 * In some situations, an expression and its type will be implicitly
570 * converted to a different type. The following table shows all allowed
571 * implicit conversions:
573 * Type of expression | Can be implicitly converted to
574 * --------------------------------------------------
587 * There are no implicit array or structure conversions. For example,
588 * an array of int cannot be implicitly converted to an array of float.
589 * There are no implicit conversions between signed and unsigned
593 bool can_implicitly_convert_to(const glsl_type
*desired
,
594 _mesa_glsl_parse_state
*state
) const;
597 * Query whether or not a type is a scalar (non-vector and non-matrix).
599 bool is_scalar() const
601 return (vector_elements
== 1)
602 && (base_type
>= GLSL_TYPE_UINT
)
603 && (base_type
<= GLSL_TYPE_IMAGE
);
607 * Query whether or not a type is a vector
609 bool is_vector() const
611 return (vector_elements
> 1)
612 && (matrix_columns
== 1)
613 && (base_type
>= GLSL_TYPE_UINT
)
614 && (base_type
<= GLSL_TYPE_BOOL
);
618 * Query whether or not a type is a matrix
620 bool is_matrix() const
622 /* GLSL only has float matrices. */
623 return (matrix_columns
> 1) && (base_type
== GLSL_TYPE_FLOAT
||
624 base_type
== GLSL_TYPE_DOUBLE
||
625 base_type
== GLSL_TYPE_FLOAT16
);
629 * Query whether or not a type is a non-array numeric type
631 bool is_numeric() const
633 return (base_type
>= GLSL_TYPE_UINT
) && (base_type
<= GLSL_TYPE_INT64
);
637 * Query whether or not a type is an integer.
639 bool is_integer() const
641 return glsl_base_type_is_integer(base_type
);
645 * Query whether or not a type is an 32-bit integer.
647 bool is_integer_32() const
649 return (base_type
== GLSL_TYPE_UINT
) || (base_type
== GLSL_TYPE_INT
);
653 * Query whether or not a type is a 64-bit integer.
655 bool is_integer_64() const
657 return base_type
== GLSL_TYPE_UINT64
|| base_type
== GLSL_TYPE_INT64
;
661 * Query whether or not a type is a 32-bit or 64-bit integer
663 bool is_integer_32_64() const
665 return is_integer_32() || is_integer_64();
669 * Query whether or not type is an integral type, or for struct and array
670 * types, contains an integral type.
672 bool contains_integer() const;
675 * Query whether or not type is a double type, or for struct, interface and
676 * array types, contains a double type.
678 bool contains_double() const;
681 * Query whether or not type is a 64-bit type, or for struct, interface and
682 * array types, contains a double type.
684 bool contains_64bit() const;
687 * Query whether or not a type is a float type
689 bool is_float() const
691 return base_type
== GLSL_TYPE_FLOAT
;
695 * Query whether or not a type is a double type
697 bool is_double() const
699 return base_type
== GLSL_TYPE_DOUBLE
;
703 * Query whether a 64-bit type takes two slots.
705 bool is_dual_slot() const
707 return is_64bit() && vector_elements
> 2;
711 * Query whether or not a type is 64-bit
713 bool is_64bit() const
715 return glsl_base_type_is_64bit(base_type
);
719 * Query whether or not a type is 16-bit
721 bool is_16bit() const
723 return glsl_base_type_is_16bit(base_type
);
727 * Query whether or not a type is 32-bit
729 bool is_32bit() const
731 return base_type
== GLSL_TYPE_UINT
||
732 base_type
== GLSL_TYPE_INT
||
733 base_type
== GLSL_TYPE_FLOAT
;
737 * Query whether or not a type is a non-array boolean type
739 bool is_boolean() const
741 return base_type
== GLSL_TYPE_BOOL
;
745 * Query whether or not a type is a sampler
747 bool is_sampler() const
749 return base_type
== GLSL_TYPE_SAMPLER
;
753 * Query whether or not type is a sampler, or for struct, interface and
754 * array types, contains a sampler.
756 bool contains_sampler() const;
759 * Query whether or not type is an array or for struct, interface and
760 * array types, contains an array.
762 bool contains_array() const;
765 * Get the Mesa texture target index for a sampler type.
767 gl_texture_index
sampler_index() const;
770 * Query whether or not type is an image, or for struct, interface and
771 * array types, contains an image.
773 bool contains_image() const;
776 * Query whether or not a type is an image
778 bool is_image() const
780 return base_type
== GLSL_TYPE_IMAGE
;
784 * Query whether or not a type is an array
786 bool is_array() const
788 return base_type
== GLSL_TYPE_ARRAY
;
791 bool is_array_of_arrays() const
793 return is_array() && fields
.array
->is_array();
797 * Query whether or not a type is a record
799 bool is_struct() const
801 return base_type
== GLSL_TYPE_STRUCT
;
805 * Query whether or not a type is an interface
807 bool is_interface() const
809 return base_type
== GLSL_TYPE_INTERFACE
;
813 * Query whether or not a type is the void type singleton.
817 return base_type
== GLSL_TYPE_VOID
;
821 * Query whether or not a type is the error type singleton.
823 bool is_error() const
825 return base_type
== GLSL_TYPE_ERROR
;
829 * Query if a type is unnamed/anonymous (named by the parser)
832 bool is_subroutine() const
834 return base_type
== GLSL_TYPE_SUBROUTINE
;
836 bool contains_subroutine() const;
838 bool is_anonymous() const
840 return !strncmp(name
, "#anon", 5);
844 * Get the type stripped of any arrays
847 * Pointer to the type of elements of the first non-array type for array
848 * types, or pointer to itself for non-array types.
850 const glsl_type
*without_array() const
852 const glsl_type
*t
= this;
854 while (t
->is_array())
861 * Return the total number of elements in an array including the elements
862 * in arrays of arrays.
864 unsigned arrays_of_arrays_size() const
869 unsigned size
= length
;
870 const glsl_type
*base_type
= fields
.array
;
872 while (base_type
->is_array()) {
873 size
= size
* base_type
->length
;
874 base_type
= base_type
->fields
.array
;
880 * Return bit size for this type.
882 unsigned bit_size() const
884 return glsl_base_type_bit_size(this->base_type
);
889 * Query whether or not a type is an atomic_uint.
891 bool is_atomic_uint() const
893 return base_type
== GLSL_TYPE_ATOMIC_UINT
;
897 * Return the amount of atomic counter storage required for a type.
899 unsigned atomic_size() const
901 if (is_atomic_uint())
902 return ATOMIC_COUNTER_SIZE
;
904 return length
* fields
.array
->atomic_size();
910 * Return whether a type contains any atomic counters.
912 bool contains_atomic() const
914 return atomic_size() > 0;
918 * Return whether a type contains any opaque types.
920 bool contains_opaque() const;
923 * Query the full type of a matrix row
926 * If the type is not a matrix, \c glsl_type::error_type is returned.
927 * Otherwise a type matching the rows of the matrix is returned.
929 const glsl_type
*row_type() const
934 if (explicit_stride
&& !interface_row_major
)
935 return get_instance(base_type
, matrix_columns
, 1, explicit_stride
);
937 return get_instance(base_type
, matrix_columns
, 1);
941 * Query the full type of a matrix column
944 * If the type is not a matrix, \c glsl_type::error_type is returned.
945 * Otherwise a type matching the columns of the matrix is returned.
947 const glsl_type
*column_type() const
952 if (explicit_stride
&& interface_row_major
)
953 return get_instance(base_type
, vector_elements
, 1, explicit_stride
);
955 return get_instance(base_type
, vector_elements
, 1);
959 * Get the type of a structure field
962 * Pointer to the type of the named field. If the type is not a structure
963 * or the named field does not exist, \c glsl_type::error_type is returned.
965 const glsl_type
*field_type(const char *name
) const;
968 * Get the location of a field within a record type
970 int field_index(const char *name
) const;
973 * Query the number of elements in an array type
976 * The number of elements in the array for array types or -1 for non-array
977 * types. If the number of elements in the array has not yet been declared,
980 int array_size() const
982 return is_array() ? length
: -1;
986 * Query whether the array size for all dimensions has been declared.
988 bool is_unsized_array() const
990 return is_array() && length
== 0;
994 * Return the number of coordinate components needed for this
995 * sampler or image type.
997 * This is based purely on the sampler's dimensionality. For example, this
998 * returns 1 for sampler1D, and 3 for sampler2DArray.
1000 * Note that this is often different than actual coordinate type used in
1001 * a texturing built-in function, since those pack additional values (such
1002 * as the shadow comparator or projector) into the coordinate type.
1004 int coordinate_components() const;
1007 * Compares whether this type matches another type without taking into
1008 * account the precision in structures.
1010 * This is applied recursively so that structures containing structure
1011 * members can also ignore the precision.
1013 bool compare_no_precision(const glsl_type
*b
) const;
1016 * Compare a record type against another record type.
1018 * This is useful for matching record types declared on the same shader
1019 * stage as well as across different shader stages.
1020 * The option to not match name is needed for matching record types
1021 * declared across different shader stages.
1022 * The option to not match locations is to deal with places where the
1023 * same struct is defined in a block which has a location set on it.
1025 bool record_compare(const glsl_type
*b
, bool match_name
,
1026 bool match_locations
= true,
1027 bool match_precision
= true) const;
1030 * Get the type interface packing.
1032 enum glsl_interface_packing
get_interface_packing() const
1034 return (enum glsl_interface_packing
)interface_packing
;
1038 * Get the type interface packing used internally. For shared and packing
1039 * layouts this is implementation defined.
1041 enum glsl_interface_packing
get_internal_ifc_packing(bool std430_supported
) const
1043 enum glsl_interface_packing packing
= this->get_interface_packing();
1044 if (packing
== GLSL_INTERFACE_PACKING_STD140
||
1045 (!std430_supported
&&
1046 (packing
== GLSL_INTERFACE_PACKING_SHARED
||
1047 packing
== GLSL_INTERFACE_PACKING_PACKED
))) {
1048 return GLSL_INTERFACE_PACKING_STD140
;
1050 assert(packing
== GLSL_INTERFACE_PACKING_STD430
||
1051 (std430_supported
&&
1052 (packing
== GLSL_INTERFACE_PACKING_SHARED
||
1053 packing
== GLSL_INTERFACE_PACKING_PACKED
)));
1054 return GLSL_INTERFACE_PACKING_STD430
;
1059 * Check if the type interface is row major
1061 bool get_interface_row_major() const
1063 return (bool) interface_row_major
;
1070 static mtx_t hash_mutex
;
1073 * ralloc context for the type itself.
1077 /** Constructor for vector and matrix types */
1078 glsl_type(GLenum gl_type
,
1079 glsl_base_type base_type
, unsigned vector_elements
,
1080 unsigned matrix_columns
, const char *name
,
1081 unsigned explicit_stride
= 0, bool row_major
= false);
1083 /** Constructor for sampler or image types */
1084 glsl_type(GLenum gl_type
, glsl_base_type base_type
,
1085 enum glsl_sampler_dim dim
, bool shadow
, bool array
,
1086 glsl_base_type type
, const char *name
);
1088 /** Constructor for record types */
1089 glsl_type(const glsl_struct_field
*fields
, unsigned num_fields
,
1090 const char *name
, bool packed
= false);
1092 /** Constructor for interface types */
1093 glsl_type(const glsl_struct_field
*fields
, unsigned num_fields
,
1094 enum glsl_interface_packing packing
,
1095 bool row_major
, const char *name
);
1097 /** Constructor for interface types */
1098 glsl_type(const glsl_type
*return_type
,
1099 const glsl_function_param
*params
, unsigned num_params
);
1101 /** Constructors for array types */
1102 glsl_type(const glsl_type
*array
, unsigned length
, unsigned explicit_stride
);
1104 /** Constructor for subroutine types */
1105 glsl_type(const char *name
);
1107 /** Hash table containing the known explicit matrix and vector types. */
1108 static struct hash_table
*explicit_matrix_types
;
1110 /** Hash table containing the known array types. */
1111 static struct hash_table
*array_types
;
1113 /** Hash table containing the known struct types. */
1114 static struct hash_table
*struct_types
;
1116 /** Hash table containing the known interface types. */
1117 static struct hash_table
*interface_types
;
1119 /** Hash table containing the known subroutine types. */
1120 static struct hash_table
*subroutine_types
;
1122 /** Hash table containing the known function types. */
1123 static struct hash_table
*function_types
;
1125 static bool record_key_compare(const void *a
, const void *b
);
1126 static unsigned record_key_hash(const void *key
);
1129 * \name Built-in type flyweights
1133 #define DECL_TYPE(NAME, ...) static const glsl_type _##NAME##_type;
1135 #define STRUCT_TYPE(NAME) static const glsl_type _struct_##NAME##_type;
1136 #include "compiler/builtin_type_macros.h"
1140 * \name Friend functions.
1142 * These functions are friends because they must have C linkage and the
1143 * need to call various private methods or access various private static
1147 friend void glsl_type_singleton_init_or_ref(void);
1148 friend void glsl_type_singleton_decref(void);
1149 friend void _mesa_glsl_initialize_types(struct _mesa_glsl_parse_state
*);
1155 #endif /* __cplusplus */
1157 struct glsl_struct_field
{
1158 const struct glsl_type
*type
;
1162 * For interface blocks, gl_varying_slot corresponding to the input/output
1163 * if this is a built-in input/output (i.e. a member of the built-in
1164 * gl_PerVertex interface block); -1 otherwise.
1166 * Ignored for structs.
1171 * For interface blocks, members may have an explicit byte offset
1172 * specified; -1 otherwise. Also used for xfb_offset layout qualifier.
1174 * Unless used for xfb_offset this field is ignored for structs.
1179 * For interface blocks, members may define a transform feedback buffer;
1185 * For interface blocks, members may define a transform feedback stride;
1191 * For interface blocks, the interpolation mode (as in
1192 * ir_variable::interpolation). 0 otherwise.
1194 unsigned interpolation
:2;
1197 * For interface blocks, 1 if this variable uses centroid interpolation (as
1198 * in ir_variable::centroid). 0 otherwise.
1200 unsigned centroid
:1;
1203 * For interface blocks, 1 if this variable uses sample interpolation (as
1204 * in ir_variable::sample). 0 otherwise.
1209 * Layout of the matrix. Uses glsl_matrix_layout values.
1211 unsigned matrix_layout
:2;
1214 * For interface blocks, 1 if this variable is a per-patch input or output
1215 * (as in ir_variable::patch). 0 otherwise.
1220 * Precision qualifier
1222 unsigned precision
:2;
1225 * Memory qualifiers, applicable to buffer variables defined in shader
1226 * storage buffer objects (SSBOs)
1228 unsigned memory_read_only
:1;
1229 unsigned memory_write_only
:1;
1230 unsigned memory_coherent
:1;
1231 unsigned memory_volatile
:1;
1232 unsigned memory_restrict
:1;
1235 * Layout format, applicable to image variables only.
1237 unsigned image_format
:16;
1240 * Any of the xfb_* qualifiers trigger the shader to be in transform
1241 * feedback mode so we need to keep track of whether the buffer was
1242 * explicitly set or if its just been assigned the default global value.
1244 unsigned explicit_xfb_buffer
:1;
1246 unsigned implicit_sized_array
:1;
1248 #define DEFAULT_CONSTRUCTORS(_type, _precision, _name) \
1249 type(_type), name(_name), location(-1), offset(-1), xfb_buffer(0), \
1250 xfb_stride(0), interpolation(0), centroid(0), \
1251 sample(0), matrix_layout(GLSL_MATRIX_LAYOUT_INHERITED), patch(0), \
1252 precision(_precision), memory_read_only(0), \
1253 memory_write_only(0), memory_coherent(0), memory_volatile(0), \
1254 memory_restrict(0), image_format(0), explicit_xfb_buffer(0), \
1255 implicit_sized_array(0)
1257 glsl_struct_field(const struct glsl_type
*_type
,
1260 : DEFAULT_CONSTRUCTORS(_type
, _precision
, _name
)
1265 glsl_struct_field(const struct glsl_type
*_type
, const char *_name
)
1266 : DEFAULT_CONSTRUCTORS(_type
, GLSL_PRECISION_NONE
, _name
)
1272 : DEFAULT_CONSTRUCTORS(NULL
, GLSL_PRECISION_NONE
, NULL
)
1276 #undef DEFAULT_CONSTRUCTORS
1280 struct glsl_function_param
{
1281 const struct glsl_type
*type
;
1287 static inline unsigned int
1288 glsl_align(unsigned int a
, unsigned int align
)
1290 return (a
+ align
- 1) / align
* align
;
1293 #endif /* GLSL_TYPES_H */