2 * Copyright © 2009 Intel Corporation
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
21 * DEALINGS IN THE SOFTWARE.
25 #include "main/macros.h"
26 #include "compiler/glsl/glsl_parser_extras.h"
27 #include "glsl_types.h"
28 #include "util/hash_table.h"
31 mtx_t
glsl_type::mutex
= _MTX_INITIALIZER_NP
;
32 hash_table
*glsl_type::array_types
= NULL
;
33 hash_table
*glsl_type::record_types
= NULL
;
34 hash_table
*glsl_type::interface_types
= NULL
;
35 hash_table
*glsl_type::function_types
= NULL
;
36 hash_table
*glsl_type::subroutine_types
= NULL
;
37 void *glsl_type::mem_ctx
= NULL
;
40 glsl_type::init_ralloc_type_ctx(void)
42 if (glsl_type::mem_ctx
== NULL
) {
43 glsl_type::mem_ctx
= ralloc_autofree_context();
44 assert(glsl_type::mem_ctx
!= NULL
);
48 glsl_type::glsl_type(GLenum gl_type
,
49 glsl_base_type base_type
, unsigned vector_elements
,
50 unsigned matrix_columns
, const char *name
) :
53 sampler_dimensionality(0), sampler_shadow(0), sampler_array(0),
54 sampled_type(0), interface_packing(0),
55 vector_elements(vector_elements
), matrix_columns(matrix_columns
),
58 /* Values of these types must fit in the two bits of
59 * glsl_type::sampled_type.
61 STATIC_ASSERT((unsigned(GLSL_TYPE_UINT
) & 3) == unsigned(GLSL_TYPE_UINT
));
62 STATIC_ASSERT((unsigned(GLSL_TYPE_INT
) & 3) == unsigned(GLSL_TYPE_INT
));
63 STATIC_ASSERT((unsigned(GLSL_TYPE_FLOAT
) & 3) == unsigned(GLSL_TYPE_FLOAT
));
65 mtx_lock(&glsl_type::mutex
);
67 init_ralloc_type_ctx();
69 this->name
= ralloc_strdup(this->mem_ctx
, name
);
71 mtx_unlock(&glsl_type::mutex
);
73 /* Neither dimension is zero or both dimensions are zero.
75 assert((vector_elements
== 0) == (matrix_columns
== 0));
76 memset(& fields
, 0, sizeof(fields
));
79 glsl_type::glsl_type(GLenum gl_type
, glsl_base_type base_type
,
80 enum glsl_sampler_dim dim
, bool shadow
, bool array
,
81 unsigned type
, const char *name
) :
84 sampler_dimensionality(dim
), sampler_shadow(shadow
),
85 sampler_array(array
), sampled_type(type
), interface_packing(0),
88 mtx_lock(&glsl_type::mutex
);
90 init_ralloc_type_ctx();
92 this->name
= ralloc_strdup(this->mem_ctx
, name
);
94 mtx_unlock(&glsl_type::mutex
);
96 memset(& fields
, 0, sizeof(fields
));
98 if (base_type
== GLSL_TYPE_SAMPLER
) {
99 /* Samplers take no storage whatsoever. */
100 matrix_columns
= vector_elements
= 0;
102 matrix_columns
= vector_elements
= 1;
106 glsl_type::glsl_type(const glsl_struct_field
*fields
, unsigned num_fields
,
109 base_type(GLSL_TYPE_STRUCT
),
110 sampler_dimensionality(0), sampler_shadow(0), sampler_array(0),
111 sampled_type(0), interface_packing(0),
112 vector_elements(0), matrix_columns(0),
117 mtx_lock(&glsl_type::mutex
);
119 init_ralloc_type_ctx();
120 assert(name
!= NULL
);
121 this->name
= ralloc_strdup(this->mem_ctx
, name
);
122 this->fields
.structure
= ralloc_array(this->mem_ctx
,
123 glsl_struct_field
, length
);
125 for (i
= 0; i
< length
; i
++) {
126 this->fields
.structure
[i
].type
= fields
[i
].type
;
127 this->fields
.structure
[i
].name
= ralloc_strdup(this->fields
.structure
,
129 this->fields
.structure
[i
].location
= fields
[i
].location
;
130 this->fields
.structure
[i
].offset
= fields
[i
].offset
;
131 this->fields
.structure
[i
].interpolation
= fields
[i
].interpolation
;
132 this->fields
.structure
[i
].centroid
= fields
[i
].centroid
;
133 this->fields
.structure
[i
].sample
= fields
[i
].sample
;
134 this->fields
.structure
[i
].matrix_layout
= fields
[i
].matrix_layout
;
135 this->fields
.structure
[i
].patch
= fields
[i
].patch
;
136 this->fields
.structure
[i
].image_read_only
= fields
[i
].image_read_only
;
137 this->fields
.structure
[i
].image_write_only
= fields
[i
].image_write_only
;
138 this->fields
.structure
[i
].image_coherent
= fields
[i
].image_coherent
;
139 this->fields
.structure
[i
].image_volatile
= fields
[i
].image_volatile
;
140 this->fields
.structure
[i
].image_restrict
= fields
[i
].image_restrict
;
141 this->fields
.structure
[i
].precision
= fields
[i
].precision
;
142 this->fields
.structure
[i
].explicit_xfb_buffer
=
143 fields
[i
].explicit_xfb_buffer
;
144 this->fields
.structure
[i
].xfb_buffer
= fields
[i
].xfb_buffer
;
145 this->fields
.structure
[i
].xfb_stride
= fields
[i
].xfb_stride
;
148 mtx_unlock(&glsl_type::mutex
);
151 glsl_type::glsl_type(const glsl_struct_field
*fields
, unsigned num_fields
,
152 enum glsl_interface_packing packing
, const char *name
) :
154 base_type(GLSL_TYPE_INTERFACE
),
155 sampler_dimensionality(0), sampler_shadow(0), sampler_array(0),
156 sampled_type(0), interface_packing((unsigned) packing
),
157 vector_elements(0), matrix_columns(0),
162 mtx_lock(&glsl_type::mutex
);
164 init_ralloc_type_ctx();
165 assert(name
!= NULL
);
166 this->name
= ralloc_strdup(this->mem_ctx
, name
);
167 this->fields
.structure
= ralloc_array(this->mem_ctx
,
168 glsl_struct_field
, length
);
169 for (i
= 0; i
< length
; i
++) {
170 this->fields
.structure
[i
].type
= fields
[i
].type
;
171 this->fields
.structure
[i
].name
= ralloc_strdup(this->fields
.structure
,
173 this->fields
.structure
[i
].location
= fields
[i
].location
;
174 this->fields
.structure
[i
].offset
= fields
[i
].offset
;
175 this->fields
.structure
[i
].interpolation
= fields
[i
].interpolation
;
176 this->fields
.structure
[i
].centroid
= fields
[i
].centroid
;
177 this->fields
.structure
[i
].sample
= fields
[i
].sample
;
178 this->fields
.structure
[i
].matrix_layout
= fields
[i
].matrix_layout
;
179 this->fields
.structure
[i
].patch
= fields
[i
].patch
;
180 this->fields
.structure
[i
].image_read_only
= fields
[i
].image_read_only
;
181 this->fields
.structure
[i
].image_write_only
= fields
[i
].image_write_only
;
182 this->fields
.structure
[i
].image_coherent
= fields
[i
].image_coherent
;
183 this->fields
.structure
[i
].image_volatile
= fields
[i
].image_volatile
;
184 this->fields
.structure
[i
].image_restrict
= fields
[i
].image_restrict
;
185 this->fields
.structure
[i
].precision
= fields
[i
].precision
;
186 this->fields
.structure
[i
].explicit_xfb_buffer
=
187 fields
[i
].explicit_xfb_buffer
;
188 this->fields
.structure
[i
].xfb_buffer
= fields
[i
].xfb_buffer
;
189 this->fields
.structure
[i
].xfb_stride
= fields
[i
].xfb_stride
;
192 mtx_unlock(&glsl_type::mutex
);
195 glsl_type::glsl_type(const glsl_type
*return_type
,
196 const glsl_function_param
*params
, unsigned num_params
) :
198 base_type(GLSL_TYPE_FUNCTION
),
199 sampler_dimensionality(0), sampler_shadow(0), sampler_array(0),
200 sampled_type(0), interface_packing(0),
201 vector_elements(0), matrix_columns(0),
206 mtx_lock(&glsl_type::mutex
);
208 init_ralloc_type_ctx();
210 this->fields
.parameters
= rzalloc_array(this->mem_ctx
,
211 glsl_function_param
, num_params
+ 1);
213 /* We store the return type as the first parameter */
214 this->fields
.parameters
[0].type
= return_type
;
215 this->fields
.parameters
[0].in
= false;
216 this->fields
.parameters
[0].out
= true;
218 /* We store the i'th parameter in slot i+1 */
219 for (i
= 0; i
< length
; i
++) {
220 this->fields
.parameters
[i
+ 1].type
= params
[i
].type
;
221 this->fields
.parameters
[i
+ 1].in
= params
[i
].in
;
222 this->fields
.parameters
[i
+ 1].out
= params
[i
].out
;
225 mtx_unlock(&glsl_type::mutex
);
228 glsl_type::glsl_type(const char *subroutine_name
) :
230 base_type(GLSL_TYPE_SUBROUTINE
),
231 sampler_dimensionality(0), sampler_shadow(0), sampler_array(0),
232 sampled_type(0), interface_packing(0),
233 vector_elements(1), matrix_columns(1),
236 mtx_lock(&glsl_type::mutex
);
238 init_ralloc_type_ctx();
239 assert(subroutine_name
!= NULL
);
240 this->name
= ralloc_strdup(this->mem_ctx
, subroutine_name
);
241 mtx_unlock(&glsl_type::mutex
);
245 glsl_type::contains_sampler() const
247 if (this->is_array()) {
248 return this->fields
.array
->contains_sampler();
249 } else if (this->is_record()) {
250 for (unsigned int i
= 0; i
< this->length
; i
++) {
251 if (this->fields
.structure
[i
].type
->contains_sampler())
256 return this->is_sampler();
262 glsl_type::contains_integer() const
264 if (this->is_array()) {
265 return this->fields
.array
->contains_integer();
266 } else if (this->is_record()) {
267 for (unsigned int i
= 0; i
< this->length
; i
++) {
268 if (this->fields
.structure
[i
].type
->contains_integer())
273 return this->is_integer();
278 glsl_type::contains_double() const
280 if (this->is_array()) {
281 return this->fields
.array
->contains_double();
282 } else if (this->is_record()) {
283 for (unsigned int i
= 0; i
< this->length
; i
++) {
284 if (this->fields
.structure
[i
].type
->contains_double())
289 return this->is_double();
294 glsl_type::contains_opaque() const {
296 case GLSL_TYPE_SAMPLER
:
297 case GLSL_TYPE_IMAGE
:
298 case GLSL_TYPE_ATOMIC_UINT
:
300 case GLSL_TYPE_ARRAY
:
301 return fields
.array
->contains_opaque();
302 case GLSL_TYPE_STRUCT
:
303 for (unsigned int i
= 0; i
< length
; i
++) {
304 if (fields
.structure
[i
].type
->contains_opaque())
314 glsl_type::contains_subroutine() const
316 if (this->is_array()) {
317 return this->fields
.array
->contains_subroutine();
318 } else if (this->is_record()) {
319 for (unsigned int i
= 0; i
< this->length
; i
++) {
320 if (this->fields
.structure
[i
].type
->contains_subroutine())
325 return this->is_subroutine();
330 glsl_type::sampler_index() const
332 const glsl_type
*const t
= (this->is_array()) ? this->fields
.array
: this;
334 assert(t
->is_sampler());
336 switch (t
->sampler_dimensionality
) {
337 case GLSL_SAMPLER_DIM_1D
:
338 return (t
->sampler_array
) ? TEXTURE_1D_ARRAY_INDEX
: TEXTURE_1D_INDEX
;
339 case GLSL_SAMPLER_DIM_2D
:
340 return (t
->sampler_array
) ? TEXTURE_2D_ARRAY_INDEX
: TEXTURE_2D_INDEX
;
341 case GLSL_SAMPLER_DIM_3D
:
342 return TEXTURE_3D_INDEX
;
343 case GLSL_SAMPLER_DIM_CUBE
:
344 return (t
->sampler_array
) ? TEXTURE_CUBE_ARRAY_INDEX
: TEXTURE_CUBE_INDEX
;
345 case GLSL_SAMPLER_DIM_RECT
:
346 return TEXTURE_RECT_INDEX
;
347 case GLSL_SAMPLER_DIM_BUF
:
348 return TEXTURE_BUFFER_INDEX
;
349 case GLSL_SAMPLER_DIM_EXTERNAL
:
350 return TEXTURE_EXTERNAL_INDEX
;
351 case GLSL_SAMPLER_DIM_MS
:
352 return (t
->sampler_array
) ? TEXTURE_2D_MULTISAMPLE_ARRAY_INDEX
: TEXTURE_2D_MULTISAMPLE_INDEX
;
354 assert(!"Should not get here.");
355 return TEXTURE_BUFFER_INDEX
;
360 glsl_type::contains_image() const
362 if (this->is_array()) {
363 return this->fields
.array
->contains_image();
364 } else if (this->is_record()) {
365 for (unsigned int i
= 0; i
< this->length
; i
++) {
366 if (this->fields
.structure
[i
].type
->contains_image())
371 return this->is_image();
375 const glsl_type
*glsl_type::get_base_type() const
382 case GLSL_TYPE_FLOAT
:
384 case GLSL_TYPE_DOUBLE
:
394 const glsl_type
*glsl_type::get_scalar_type() const
396 const glsl_type
*type
= this;
399 while (type
->base_type
== GLSL_TYPE_ARRAY
)
400 type
= type
->fields
.array
;
402 /* Handle vectors and matrices */
403 switch (type
->base_type
) {
408 case GLSL_TYPE_FLOAT
:
410 case GLSL_TYPE_DOUBLE
:
415 /* Handle everything else */
422 _mesa_glsl_release_types(void)
424 /* Should only be called during atexit (either when unloading shared
425 * object, or if process terminates), so no mutex-locking should be
428 if (glsl_type::array_types
!= NULL
) {
429 _mesa_hash_table_destroy(glsl_type::array_types
, NULL
);
430 glsl_type::array_types
= NULL
;
433 if (glsl_type::record_types
!= NULL
) {
434 _mesa_hash_table_destroy(glsl_type::record_types
, NULL
);
435 glsl_type::record_types
= NULL
;
438 if (glsl_type::interface_types
!= NULL
) {
439 _mesa_hash_table_destroy(glsl_type::interface_types
, NULL
);
440 glsl_type::interface_types
= NULL
;
445 glsl_type::glsl_type(const glsl_type
*array
, unsigned length
) :
446 base_type(GLSL_TYPE_ARRAY
),
447 sampler_dimensionality(0), sampler_shadow(0), sampler_array(0),
448 sampled_type(0), interface_packing(0),
449 vector_elements(0), matrix_columns(0),
450 length(length
), name(NULL
)
452 this->fields
.array
= array
;
453 /* Inherit the gl type of the base. The GL type is used for
454 * uniform/statevar handling in Mesa and the arrayness of the type
455 * is represented by the size rather than the type.
457 this->gl_type
= array
->gl_type
;
459 /* Allow a maximum of 10 characters for the array size. This is enough
460 * for 32-bits of ~0. The extra 3 are for the '[', ']', and terminating
463 const unsigned name_length
= strlen(array
->name
) + 10 + 3;
465 mtx_lock(&glsl_type::mutex
);
466 char *const n
= (char *) ralloc_size(this->mem_ctx
, name_length
);
467 mtx_unlock(&glsl_type::mutex
);
470 snprintf(n
, name_length
, "%s[]", array
->name
);
472 /* insert outermost dimensions in the correct spot
473 * otherwise the dimension order will be backwards
475 const char *pos
= strchr(array
->name
, '[');
477 int idx
= pos
- array
->name
;
478 snprintf(n
, idx
+1, "%s", array
->name
);
479 snprintf(n
+ idx
, name_length
- idx
, "[%u]%s",
480 length
, array
->name
+ idx
);
482 snprintf(n
, name_length
, "%s[%u]", array
->name
, length
);
491 glsl_type::vec(unsigned components
)
493 if (components
== 0 || components
> 4)
496 static const glsl_type
*const ts
[] = {
497 float_type
, vec2_type
, vec3_type
, vec4_type
499 return ts
[components
- 1];
503 glsl_type::dvec(unsigned components
)
505 if (components
== 0 || components
> 4)
508 static const glsl_type
*const ts
[] = {
509 double_type
, dvec2_type
, dvec3_type
, dvec4_type
511 return ts
[components
- 1];
515 glsl_type::ivec(unsigned components
)
517 if (components
== 0 || components
> 4)
520 static const glsl_type
*const ts
[] = {
521 int_type
, ivec2_type
, ivec3_type
, ivec4_type
523 return ts
[components
- 1];
528 glsl_type::uvec(unsigned components
)
530 if (components
== 0 || components
> 4)
533 static const glsl_type
*const ts
[] = {
534 uint_type
, uvec2_type
, uvec3_type
, uvec4_type
536 return ts
[components
- 1];
541 glsl_type::bvec(unsigned components
)
543 if (components
== 0 || components
> 4)
546 static const glsl_type
*const ts
[] = {
547 bool_type
, bvec2_type
, bvec3_type
, bvec4_type
549 return ts
[components
- 1];
554 glsl_type::get_instance(unsigned base_type
, unsigned rows
, unsigned columns
)
556 if (base_type
== GLSL_TYPE_VOID
)
559 if ((rows
< 1) || (rows
> 4) || (columns
< 1) || (columns
> 4))
562 /* Treat GLSL vectors as Nx1 matrices.
570 case GLSL_TYPE_FLOAT
:
572 case GLSL_TYPE_DOUBLE
:
580 if ((base_type
!= GLSL_TYPE_FLOAT
&& base_type
!= GLSL_TYPE_DOUBLE
) || (rows
== 1))
583 /* GLSL matrix types are named mat{COLUMNS}x{ROWS}. Only the following
584 * combinations are valid:
592 #define IDX(c,r) (((c-1)*3) + (r-1))
594 if (base_type
== GLSL_TYPE_DOUBLE
) {
595 switch (IDX(columns
, rows
)) {
596 case IDX(2,2): return dmat2_type
;
597 case IDX(2,3): return dmat2x3_type
;
598 case IDX(2,4): return dmat2x4_type
;
599 case IDX(3,2): return dmat3x2_type
;
600 case IDX(3,3): return dmat3_type
;
601 case IDX(3,4): return dmat3x4_type
;
602 case IDX(4,2): return dmat4x2_type
;
603 case IDX(4,3): return dmat4x3_type
;
604 case IDX(4,4): return dmat4_type
;
605 default: return error_type
;
608 switch (IDX(columns
, rows
)) {
609 case IDX(2,2): return mat2_type
;
610 case IDX(2,3): return mat2x3_type
;
611 case IDX(2,4): return mat2x4_type
;
612 case IDX(3,2): return mat3x2_type
;
613 case IDX(3,3): return mat3_type
;
614 case IDX(3,4): return mat3x4_type
;
615 case IDX(4,2): return mat4x2_type
;
616 case IDX(4,3): return mat4x3_type
;
617 case IDX(4,4): return mat4_type
;
618 default: return error_type
;
623 assert(!"Should not get here.");
628 glsl_type::get_sampler_instance(enum glsl_sampler_dim dim
,
634 case GLSL_TYPE_FLOAT
:
636 case GLSL_SAMPLER_DIM_1D
:
638 return (array
? sampler1DArrayShadow_type
: sampler1DShadow_type
);
640 return (array
? sampler1DArray_type
: sampler1D_type
);
641 case GLSL_SAMPLER_DIM_2D
:
643 return (array
? sampler2DArrayShadow_type
: sampler2DShadow_type
);
645 return (array
? sampler2DArray_type
: sampler2D_type
);
646 case GLSL_SAMPLER_DIM_3D
:
650 return sampler3D_type
;
651 case GLSL_SAMPLER_DIM_CUBE
:
653 return (array
? samplerCubeArrayShadow_type
: samplerCubeShadow_type
);
655 return (array
? samplerCubeArray_type
: samplerCube_type
);
656 case GLSL_SAMPLER_DIM_RECT
:
660 return sampler2DRectShadow_type
;
662 return sampler2DRect_type
;
663 case GLSL_SAMPLER_DIM_BUF
:
667 return samplerBuffer_type
;
668 case GLSL_SAMPLER_DIM_MS
:
671 return (array
? sampler2DMSArray_type
: sampler2DMS_type
);
672 case GLSL_SAMPLER_DIM_EXTERNAL
:
676 return samplerExternalOES_type
;
677 case GLSL_SAMPLER_DIM_SUBPASS
:
684 case GLSL_SAMPLER_DIM_1D
:
685 return (array
? isampler1DArray_type
: isampler1D_type
);
686 case GLSL_SAMPLER_DIM_2D
:
687 return (array
? isampler2DArray_type
: isampler2D_type
);
688 case GLSL_SAMPLER_DIM_3D
:
691 return isampler3D_type
;
692 case GLSL_SAMPLER_DIM_CUBE
:
693 return (array
? isamplerCubeArray_type
: isamplerCube_type
);
694 case GLSL_SAMPLER_DIM_RECT
:
697 return isampler2DRect_type
;
698 case GLSL_SAMPLER_DIM_BUF
:
701 return isamplerBuffer_type
;
702 case GLSL_SAMPLER_DIM_MS
:
703 return (array
? isampler2DMSArray_type
: isampler2DMS_type
);
704 case GLSL_SAMPLER_DIM_EXTERNAL
:
706 case GLSL_SAMPLER_DIM_SUBPASS
:
713 case GLSL_SAMPLER_DIM_1D
:
714 return (array
? usampler1DArray_type
: usampler1D_type
);
715 case GLSL_SAMPLER_DIM_2D
:
716 return (array
? usampler2DArray_type
: usampler2D_type
);
717 case GLSL_SAMPLER_DIM_3D
:
720 return usampler3D_type
;
721 case GLSL_SAMPLER_DIM_CUBE
:
722 return (array
? usamplerCubeArray_type
: usamplerCube_type
);
723 case GLSL_SAMPLER_DIM_RECT
:
726 return usampler2DRect_type
;
727 case GLSL_SAMPLER_DIM_BUF
:
730 return usamplerBuffer_type
;
731 case GLSL_SAMPLER_DIM_MS
:
732 return (array
? usampler2DMSArray_type
: usampler2DMS_type
);
733 case GLSL_SAMPLER_DIM_EXTERNAL
:
735 case GLSL_SAMPLER_DIM_SUBPASS
:
742 unreachable("switch statement above should be complete");
746 glsl_type::get_image_instance(enum glsl_sampler_dim dim
,
747 bool array
, glsl_base_type type
)
749 if (dim
== GLSL_SAMPLER_DIM_SUBPASS
)
750 return subpassInput_type
;
752 case GLSL_TYPE_FLOAT
:
754 case GLSL_SAMPLER_DIM_1D
:
755 return (array
? image1DArray_type
: image1D_type
);
756 case GLSL_SAMPLER_DIM_2D
:
757 return (array
? image2DArray_type
: image2D_type
);
758 case GLSL_SAMPLER_DIM_3D
:
760 case GLSL_SAMPLER_DIM_CUBE
:
761 return (array
? imageCubeArray_type
: imageCube_type
);
762 case GLSL_SAMPLER_DIM_RECT
:
766 return image2DRect_type
;
767 case GLSL_SAMPLER_DIM_BUF
:
771 return imageBuffer_type
;
772 case GLSL_SAMPLER_DIM_MS
:
773 return (array
? image2DMSArray_type
: image2DMS_type
);
774 case GLSL_SAMPLER_DIM_EXTERNAL
:
775 case GLSL_SAMPLER_DIM_SUBPASS
:
780 case GLSL_SAMPLER_DIM_1D
:
781 return (array
? iimage1DArray_type
: iimage1D_type
);
782 case GLSL_SAMPLER_DIM_2D
:
783 return (array
? iimage2DArray_type
: iimage2D_type
);
784 case GLSL_SAMPLER_DIM_3D
:
787 return iimage3D_type
;
788 case GLSL_SAMPLER_DIM_CUBE
:
789 return (array
? iimageCubeArray_type
: iimageCube_type
);
790 case GLSL_SAMPLER_DIM_RECT
:
793 return iimage2DRect_type
;
794 case GLSL_SAMPLER_DIM_BUF
:
797 return iimageBuffer_type
;
798 case GLSL_SAMPLER_DIM_MS
:
799 return (array
? iimage2DMSArray_type
: iimage2DMS_type
);
800 case GLSL_SAMPLER_DIM_EXTERNAL
:
801 case GLSL_SAMPLER_DIM_SUBPASS
:
806 case GLSL_SAMPLER_DIM_1D
:
807 return (array
? uimage1DArray_type
: uimage1D_type
);
808 case GLSL_SAMPLER_DIM_2D
:
809 return (array
? uimage2DArray_type
: uimage2D_type
);
810 case GLSL_SAMPLER_DIM_3D
:
813 return uimage3D_type
;
814 case GLSL_SAMPLER_DIM_CUBE
:
815 return (array
? uimageCubeArray_type
: uimageCube_type
);
816 case GLSL_SAMPLER_DIM_RECT
:
819 return uimage2DRect_type
;
820 case GLSL_SAMPLER_DIM_BUF
:
823 return uimageBuffer_type
;
824 case GLSL_SAMPLER_DIM_MS
:
825 return (array
? uimage2DMSArray_type
: uimage2DMS_type
);
826 case GLSL_SAMPLER_DIM_EXTERNAL
:
827 case GLSL_SAMPLER_DIM_SUBPASS
:
834 unreachable("switch statement above should be complete");
838 glsl_type::get_array_instance(const glsl_type
*base
, unsigned array_size
)
840 /* Generate a name using the base type pointer in the key. This is
841 * done because the name of the base type may not be unique across
842 * shaders. For example, two shaders may have different record types
846 snprintf(key
, sizeof(key
), "%p[%u]", (void *) base
, array_size
);
848 mtx_lock(&glsl_type::mutex
);
850 if (array_types
== NULL
) {
851 array_types
= _mesa_hash_table_create(NULL
, _mesa_key_hash_string
,
852 _mesa_key_string_equal
);
855 const struct hash_entry
*entry
= _mesa_hash_table_search(array_types
, key
);
857 mtx_unlock(&glsl_type::mutex
);
858 const glsl_type
*t
= new glsl_type(base
, array_size
);
859 mtx_lock(&glsl_type::mutex
);
861 entry
= _mesa_hash_table_insert(array_types
,
862 ralloc_strdup(mem_ctx
, key
),
866 assert(((glsl_type
*) entry
->data
)->base_type
== GLSL_TYPE_ARRAY
);
867 assert(((glsl_type
*) entry
->data
)->length
== array_size
);
868 assert(((glsl_type
*) entry
->data
)->fields
.array
== base
);
870 mtx_unlock(&glsl_type::mutex
);
872 return (glsl_type
*) entry
->data
;
877 glsl_type::record_compare(const glsl_type
*b
, bool match_locations
) const
879 if (this->length
!= b
->length
)
882 if (this->interface_packing
!= b
->interface_packing
)
885 /* From the GLSL 4.20 specification (Sec 4.2):
887 * "Structures must have the same name, sequence of type names, and
888 * type definitions, and field names to be considered the same type."
890 * GLSL ES behaves the same (Ver 1.00 Sec 4.2.4, Ver 3.00 Sec 4.2.5).
892 * Note that we cannot force type name check when comparing unnamed
893 * structure types, these have a unique name assigned during parsing.
895 if (!this->is_anonymous() && !b
->is_anonymous())
896 if (strcmp(this->name
, b
->name
) != 0)
899 for (unsigned i
= 0; i
< this->length
; i
++) {
900 if (this->fields
.structure
[i
].type
!= b
->fields
.structure
[i
].type
)
902 if (strcmp(this->fields
.structure
[i
].name
,
903 b
->fields
.structure
[i
].name
) != 0)
905 if (this->fields
.structure
[i
].matrix_layout
906 != b
->fields
.structure
[i
].matrix_layout
)
908 if (match_locations
&& this->fields
.structure
[i
].location
909 != b
->fields
.structure
[i
].location
)
911 if (this->fields
.structure
[i
].offset
912 != b
->fields
.structure
[i
].offset
)
914 if (this->fields
.structure
[i
].interpolation
915 != b
->fields
.structure
[i
].interpolation
)
917 if (this->fields
.structure
[i
].centroid
918 != b
->fields
.structure
[i
].centroid
)
920 if (this->fields
.structure
[i
].sample
921 != b
->fields
.structure
[i
].sample
)
923 if (this->fields
.structure
[i
].patch
924 != b
->fields
.structure
[i
].patch
)
926 if (this->fields
.structure
[i
].image_read_only
927 != b
->fields
.structure
[i
].image_read_only
)
929 if (this->fields
.structure
[i
].image_write_only
930 != b
->fields
.structure
[i
].image_write_only
)
932 if (this->fields
.structure
[i
].image_coherent
933 != b
->fields
.structure
[i
].image_coherent
)
935 if (this->fields
.structure
[i
].image_volatile
936 != b
->fields
.structure
[i
].image_volatile
)
938 if (this->fields
.structure
[i
].image_restrict
939 != b
->fields
.structure
[i
].image_restrict
)
941 if (this->fields
.structure
[i
].precision
942 != b
->fields
.structure
[i
].precision
)
944 if (this->fields
.structure
[i
].explicit_xfb_buffer
945 != b
->fields
.structure
[i
].explicit_xfb_buffer
)
947 if (this->fields
.structure
[i
].xfb_buffer
948 != b
->fields
.structure
[i
].xfb_buffer
)
950 if (this->fields
.structure
[i
].xfb_stride
951 != b
->fields
.structure
[i
].xfb_stride
)
960 glsl_type::record_key_compare(const void *a
, const void *b
)
962 const glsl_type
*const key1
= (glsl_type
*) a
;
963 const glsl_type
*const key2
= (glsl_type
*) b
;
965 return strcmp(key1
->name
, key2
->name
) == 0 && key1
->record_compare(key2
);
970 * Generate an integer hash value for a glsl_type structure type.
973 glsl_type::record_key_hash(const void *a
)
975 const glsl_type
*const key
= (glsl_type
*) a
;
976 uintptr_t hash
= key
->length
;
979 for (unsigned i
= 0; i
< key
->length
; i
++) {
980 /* casting pointer to uintptr_t */
981 hash
= (hash
* 13 ) + (uintptr_t) key
->fields
.structure
[i
].type
;
984 if (sizeof(hash
) == 8)
985 retval
= (hash
& 0xffffffff) ^ ((uint64_t) hash
>> 32);
994 glsl_type::get_record_instance(const glsl_struct_field
*fields
,
998 const glsl_type
key(fields
, num_fields
, name
);
1000 mtx_lock(&glsl_type::mutex
);
1002 if (record_types
== NULL
) {
1003 record_types
= _mesa_hash_table_create(NULL
, record_key_hash
,
1004 record_key_compare
);
1007 const struct hash_entry
*entry
= _mesa_hash_table_search(record_types
,
1009 if (entry
== NULL
) {
1010 mtx_unlock(&glsl_type::mutex
);
1011 const glsl_type
*t
= new glsl_type(fields
, num_fields
, name
);
1012 mtx_lock(&glsl_type::mutex
);
1014 entry
= _mesa_hash_table_insert(record_types
, t
, (void *) t
);
1017 assert(((glsl_type
*) entry
->data
)->base_type
== GLSL_TYPE_STRUCT
);
1018 assert(((glsl_type
*) entry
->data
)->length
== num_fields
);
1019 assert(strcmp(((glsl_type
*) entry
->data
)->name
, name
) == 0);
1021 mtx_unlock(&glsl_type::mutex
);
1023 return (glsl_type
*) entry
->data
;
1028 glsl_type::get_interface_instance(const glsl_struct_field
*fields
,
1029 unsigned num_fields
,
1030 enum glsl_interface_packing packing
,
1031 const char *block_name
)
1033 const glsl_type
key(fields
, num_fields
, packing
, block_name
);
1035 mtx_lock(&glsl_type::mutex
);
1037 if (interface_types
== NULL
) {
1038 interface_types
= _mesa_hash_table_create(NULL
, record_key_hash
,
1039 record_key_compare
);
1042 const struct hash_entry
*entry
= _mesa_hash_table_search(interface_types
,
1044 if (entry
== NULL
) {
1045 mtx_unlock(&glsl_type::mutex
);
1046 const glsl_type
*t
= new glsl_type(fields
, num_fields
,
1047 packing
, block_name
);
1048 mtx_lock(&glsl_type::mutex
);
1050 entry
= _mesa_hash_table_insert(interface_types
, t
, (void *) t
);
1053 assert(((glsl_type
*) entry
->data
)->base_type
== GLSL_TYPE_INTERFACE
);
1054 assert(((glsl_type
*) entry
->data
)->length
== num_fields
);
1055 assert(strcmp(((glsl_type
*) entry
->data
)->name
, block_name
) == 0);
1057 mtx_unlock(&glsl_type::mutex
);
1059 return (glsl_type
*) entry
->data
;
1063 glsl_type::get_subroutine_instance(const char *subroutine_name
)
1065 const glsl_type
key(subroutine_name
);
1067 mtx_lock(&glsl_type::mutex
);
1069 if (subroutine_types
== NULL
) {
1070 subroutine_types
= _mesa_hash_table_create(NULL
, record_key_hash
,
1071 record_key_compare
);
1074 const struct hash_entry
*entry
= _mesa_hash_table_search(subroutine_types
,
1076 if (entry
== NULL
) {
1077 mtx_unlock(&glsl_type::mutex
);
1078 const glsl_type
*t
= new glsl_type(subroutine_name
);
1079 mtx_lock(&glsl_type::mutex
);
1081 entry
= _mesa_hash_table_insert(subroutine_types
, t
, (void *) t
);
1084 assert(((glsl_type
*) entry
->data
)->base_type
== GLSL_TYPE_SUBROUTINE
);
1085 assert(strcmp(((glsl_type
*) entry
->data
)->name
, subroutine_name
) == 0);
1087 mtx_unlock(&glsl_type::mutex
);
1089 return (glsl_type
*) entry
->data
;
1094 function_key_compare(const void *a
, const void *b
)
1096 const glsl_type
*const key1
= (glsl_type
*) a
;
1097 const glsl_type
*const key2
= (glsl_type
*) b
;
1099 if (key1
->length
!= key2
->length
)
1102 return memcmp(key1
->fields
.parameters
, key2
->fields
.parameters
,
1103 (key1
->length
+ 1) * sizeof(*key1
->fields
.parameters
)) == 0;
1108 function_key_hash(const void *a
)
1110 const glsl_type
*const key
= (glsl_type
*) a
;
1111 return _mesa_hash_data(key
->fields
.parameters
,
1112 (key
->length
+ 1) * sizeof(*key
->fields
.parameters
));
1116 glsl_type::get_function_instance(const glsl_type
*return_type
,
1117 const glsl_function_param
*params
,
1118 unsigned num_params
)
1120 const glsl_type
key(return_type
, params
, num_params
);
1122 mtx_lock(&glsl_type::mutex
);
1124 if (function_types
== NULL
) {
1125 function_types
= _mesa_hash_table_create(NULL
, function_key_hash
,
1126 function_key_compare
);
1129 struct hash_entry
*entry
= _mesa_hash_table_search(function_types
, &key
);
1130 if (entry
== NULL
) {
1131 mtx_unlock(&glsl_type::mutex
);
1132 const glsl_type
*t
= new glsl_type(return_type
, params
, num_params
);
1133 mtx_lock(&glsl_type::mutex
);
1135 entry
= _mesa_hash_table_insert(function_types
, t
, (void *) t
);
1138 const glsl_type
*t
= (const glsl_type
*)entry
->data
;
1140 assert(t
->base_type
== GLSL_TYPE_FUNCTION
);
1141 assert(t
->length
== num_params
);
1143 mtx_unlock(&glsl_type::mutex
);
1150 glsl_type::get_mul_type(const glsl_type
*type_a
, const glsl_type
*type_b
)
1152 if (type_a
== type_b
) {
1154 } else if (type_a
->is_matrix() && type_b
->is_matrix()) {
1155 /* Matrix multiply. The columns of A must match the rows of B. Given
1156 * the other previously tested constraints, this means the vector type
1157 * of a row from A must be the same as the vector type of a column from
1160 if (type_a
->row_type() == type_b
->column_type()) {
1161 /* The resulting matrix has the number of columns of matrix B and
1162 * the number of rows of matrix A. We get the row count of A by
1163 * looking at the size of a vector that makes up a column. The
1164 * transpose (size of a row) is done for B.
1166 const glsl_type
*const type
=
1167 get_instance(type_a
->base_type
,
1168 type_a
->column_type()->vector_elements
,
1169 type_b
->row_type()->vector_elements
);
1170 assert(type
!= error_type
);
1174 } else if (type_a
->is_matrix()) {
1175 /* A is a matrix and B is a column vector. Columns of A must match
1176 * rows of B. Given the other previously tested constraints, this
1177 * means the vector type of a row from A must be the same as the
1178 * vector the type of B.
1180 if (type_a
->row_type() == type_b
) {
1181 /* The resulting vector has a number of elements equal to
1182 * the number of rows of matrix A. */
1183 const glsl_type
*const type
=
1184 get_instance(type_a
->base_type
,
1185 type_a
->column_type()->vector_elements
,
1187 assert(type
!= error_type
);
1192 assert(type_b
->is_matrix());
1194 /* A is a row vector and B is a matrix. Columns of A must match rows
1195 * of B. Given the other previously tested constraints, this means
1196 * the type of A must be the same as the vector type of a column from
1199 if (type_a
== type_b
->column_type()) {
1200 /* The resulting vector has a number of elements equal to
1201 * the number of columns of matrix B. */
1202 const glsl_type
*const type
=
1203 get_instance(type_a
->base_type
,
1204 type_b
->row_type()->vector_elements
,
1206 assert(type
!= error_type
);
1217 glsl_type::field_type(const char *name
) const
1219 if (this->base_type
!= GLSL_TYPE_STRUCT
1220 && this->base_type
!= GLSL_TYPE_INTERFACE
)
1223 for (unsigned i
= 0; i
< this->length
; i
++) {
1224 if (strcmp(name
, this->fields
.structure
[i
].name
) == 0)
1225 return this->fields
.structure
[i
].type
;
1233 glsl_type::field_index(const char *name
) const
1235 if (this->base_type
!= GLSL_TYPE_STRUCT
1236 && this->base_type
!= GLSL_TYPE_INTERFACE
)
1239 for (unsigned i
= 0; i
< this->length
; i
++) {
1240 if (strcmp(name
, this->fields
.structure
[i
].name
) == 0)
1249 glsl_type::component_slots() const
1251 switch (this->base_type
) {
1252 case GLSL_TYPE_UINT
:
1254 case GLSL_TYPE_FLOAT
:
1255 case GLSL_TYPE_BOOL
:
1256 return this->components();
1258 case GLSL_TYPE_DOUBLE
:
1259 return 2 * this->components();
1261 case GLSL_TYPE_STRUCT
:
1262 case GLSL_TYPE_INTERFACE
: {
1265 for (unsigned i
= 0; i
< this->length
; i
++)
1266 size
+= this->fields
.structure
[i
].type
->component_slots();
1271 case GLSL_TYPE_ARRAY
:
1272 return this->length
* this->fields
.array
->component_slots();
1274 case GLSL_TYPE_IMAGE
:
1276 case GLSL_TYPE_SUBROUTINE
:
1279 case GLSL_TYPE_FUNCTION
:
1280 case GLSL_TYPE_SAMPLER
:
1281 case GLSL_TYPE_ATOMIC_UINT
:
1282 case GLSL_TYPE_VOID
:
1283 case GLSL_TYPE_ERROR
:
1291 glsl_type::record_location_offset(unsigned length
) const
1293 unsigned offset
= 0;
1294 const glsl_type
*t
= this->without_array();
1295 if (t
->is_record()) {
1296 assert(length
<= t
->length
);
1298 for (unsigned i
= 0; i
< length
; i
++) {
1299 const glsl_type
*st
= t
->fields
.structure
[i
].type
;
1300 const glsl_type
*wa
= st
->without_array();
1301 if (wa
->is_record()) {
1302 unsigned r_offset
= wa
->record_location_offset(wa
->length
);
1303 offset
+= st
->is_array() ?
1304 st
->arrays_of_arrays_size() * r_offset
: r_offset
;
1305 } else if (st
->is_array() && st
->fields
.array
->is_array()) {
1306 unsigned outer_array_size
= st
->length
;
1307 const glsl_type
*base_type
= st
->fields
.array
;
1309 /* For arrays of arrays the outer arrays take up a uniform
1310 * slot for each element. The innermost array elements share a
1311 * single slot so we ignore the innermost array when calculating
1314 while (base_type
->fields
.array
->is_array()) {
1315 outer_array_size
= outer_array_size
* base_type
->length
;
1316 base_type
= base_type
->fields
.array
;
1318 offset
+= outer_array_size
;
1320 /* We dont worry about arrays here because unless the array
1321 * contains a structure or another array it only takes up a single
1332 glsl_type::uniform_locations() const
1336 switch (this->base_type
) {
1337 case GLSL_TYPE_UINT
:
1339 case GLSL_TYPE_FLOAT
:
1340 case GLSL_TYPE_DOUBLE
:
1341 case GLSL_TYPE_BOOL
:
1342 case GLSL_TYPE_SAMPLER
:
1343 case GLSL_TYPE_IMAGE
:
1344 case GLSL_TYPE_SUBROUTINE
:
1347 case GLSL_TYPE_STRUCT
:
1348 case GLSL_TYPE_INTERFACE
:
1349 for (unsigned i
= 0; i
< this->length
; i
++)
1350 size
+= this->fields
.structure
[i
].type
->uniform_locations();
1352 case GLSL_TYPE_ARRAY
:
1353 return this->length
* this->fields
.array
->uniform_locations();
1360 glsl_type::varying_count() const
1364 switch (this->base_type
) {
1365 case GLSL_TYPE_UINT
:
1367 case GLSL_TYPE_FLOAT
:
1368 case GLSL_TYPE_DOUBLE
:
1369 case GLSL_TYPE_BOOL
:
1372 case GLSL_TYPE_STRUCT
:
1373 case GLSL_TYPE_INTERFACE
:
1374 for (unsigned i
= 0; i
< this->length
; i
++)
1375 size
+= this->fields
.structure
[i
].type
->varying_count();
1377 case GLSL_TYPE_ARRAY
:
1378 /* Don't count innermost array elements */
1379 if (this->without_array()->is_record() ||
1380 this->without_array()->is_interface() ||
1381 this->fields
.array
->is_array())
1382 return this->length
* this->fields
.array
->varying_count();
1384 return this->fields
.array
->varying_count();
1386 assert(!"unsupported varying type");
1392 glsl_type::can_implicitly_convert_to(const glsl_type
*desired
,
1393 _mesa_glsl_parse_state
*state
) const
1395 if (this == desired
)
1398 /* GLSL 1.10 and ESSL do not allow implicit conversions. If there is no
1399 * state, we're doing intra-stage function linking where these checks have
1400 * already been done.
1402 if (state
&& (state
->es_shader
|| !state
->is_version(120, 0)))
1405 /* There is no conversion among matrix types. */
1406 if (this->matrix_columns
> 1 || desired
->matrix_columns
> 1)
1409 /* Vector size must match. */
1410 if (this->vector_elements
!= desired
->vector_elements
)
1413 /* int and uint can be converted to float. */
1414 if (desired
->is_float() && this->is_integer())
1417 /* With GLSL 4.0, ARB_gpu_shader5, or MESA_shader_integer_functions, int
1418 * can be converted to uint. Note that state may be NULL here, when
1419 * resolving function calls in the linker. By this time, all the
1420 * state-dependent checks have already happened though, so allow anything
1421 * that's allowed in any shader version.
1423 if ((!state
|| state
->is_version(400, 0) || state
->ARB_gpu_shader5_enable
||
1424 state
->MESA_shader_integer_functions_enable
) &&
1425 desired
->base_type
== GLSL_TYPE_UINT
&& this->base_type
== GLSL_TYPE_INT
)
1428 /* No implicit conversions from double. */
1429 if ((!state
|| state
->has_double()) && this->is_double())
1432 /* Conversions from different types to double. */
1433 if ((!state
|| state
->has_double()) && desired
->is_double()) {
1434 if (this->is_float())
1436 if (this->is_integer())
1444 glsl_type::std140_base_alignment(bool row_major
) const
1446 unsigned N
= is_64bit() ? 8 : 4;
1448 /* (1) If the member is a scalar consuming <N> basic machine units, the
1449 * base alignment is <N>.
1451 * (2) If the member is a two- or four-component vector with components
1452 * consuming <N> basic machine units, the base alignment is 2<N> or
1453 * 4<N>, respectively.
1455 * (3) If the member is a three-component vector with components consuming
1456 * <N> basic machine units, the base alignment is 4<N>.
1458 if (this->is_scalar() || this->is_vector()) {
1459 switch (this->vector_elements
) {
1470 /* (4) If the member is an array of scalars or vectors, the base alignment
1471 * and array stride are set to match the base alignment of a single
1472 * array element, according to rules (1), (2), and (3), and rounded up
1473 * to the base alignment of a vec4. The array may have padding at the
1474 * end; the base offset of the member following the array is rounded up
1475 * to the next multiple of the base alignment.
1477 * (6) If the member is an array of <S> column-major matrices with <C>
1478 * columns and <R> rows, the matrix is stored identically to a row of
1479 * <S>*<C> column vectors with <R> components each, according to rule
1482 * (8) If the member is an array of <S> row-major matrices with <C> columns
1483 * and <R> rows, the matrix is stored identically to a row of <S>*<R>
1484 * row vectors with <C> components each, according to rule (4).
1486 * (10) If the member is an array of <S> structures, the <S> elements of
1487 * the array are laid out in order, according to rule (9).
1489 if (this->is_array()) {
1490 if (this->fields
.array
->is_scalar() ||
1491 this->fields
.array
->is_vector() ||
1492 this->fields
.array
->is_matrix()) {
1493 return MAX2(this->fields
.array
->std140_base_alignment(row_major
), 16);
1495 assert(this->fields
.array
->is_record() ||
1496 this->fields
.array
->is_array());
1497 return this->fields
.array
->std140_base_alignment(row_major
);
1501 /* (5) If the member is a column-major matrix with <C> columns and
1502 * <R> rows, the matrix is stored identically to an array of
1503 * <C> column vectors with <R> components each, according to
1506 * (7) If the member is a row-major matrix with <C> columns and <R>
1507 * rows, the matrix is stored identically to an array of <R>
1508 * row vectors with <C> components each, according to rule (4).
1510 if (this->is_matrix()) {
1511 const struct glsl_type
*vec_type
, *array_type
;
1512 int c
= this->matrix_columns
;
1513 int r
= this->vector_elements
;
1516 vec_type
= get_instance(base_type
, c
, 1);
1517 array_type
= glsl_type::get_array_instance(vec_type
, r
);
1519 vec_type
= get_instance(base_type
, r
, 1);
1520 array_type
= glsl_type::get_array_instance(vec_type
, c
);
1523 return array_type
->std140_base_alignment(false);
1526 /* (9) If the member is a structure, the base alignment of the
1527 * structure is <N>, where <N> is the largest base alignment
1528 * value of any of its members, and rounded up to the base
1529 * alignment of a vec4. The individual members of this
1530 * sub-structure are then assigned offsets by applying this set
1531 * of rules recursively, where the base offset of the first
1532 * member of the sub-structure is equal to the aligned offset
1533 * of the structure. The structure may have padding at the end;
1534 * the base offset of the member following the sub-structure is
1535 * rounded up to the next multiple of the base alignment of the
1538 if (this->is_record()) {
1539 unsigned base_alignment
= 16;
1540 for (unsigned i
= 0; i
< this->length
; i
++) {
1541 bool field_row_major
= row_major
;
1542 const enum glsl_matrix_layout matrix_layout
=
1543 glsl_matrix_layout(this->fields
.structure
[i
].matrix_layout
);
1544 if (matrix_layout
== GLSL_MATRIX_LAYOUT_ROW_MAJOR
) {
1545 field_row_major
= true;
1546 } else if (matrix_layout
== GLSL_MATRIX_LAYOUT_COLUMN_MAJOR
) {
1547 field_row_major
= false;
1550 const struct glsl_type
*field_type
= this->fields
.structure
[i
].type
;
1551 base_alignment
= MAX2(base_alignment
,
1552 field_type
->std140_base_alignment(field_row_major
));
1554 return base_alignment
;
1557 assert(!"not reached");
1562 glsl_type::std140_size(bool row_major
) const
1564 unsigned N
= is_64bit() ? 8 : 4;
1566 /* (1) If the member is a scalar consuming <N> basic machine units, the
1567 * base alignment is <N>.
1569 * (2) If the member is a two- or four-component vector with components
1570 * consuming <N> basic machine units, the base alignment is 2<N> or
1571 * 4<N>, respectively.
1573 * (3) If the member is a three-component vector with components consuming
1574 * <N> basic machine units, the base alignment is 4<N>.
1576 if (this->is_scalar() || this->is_vector()) {
1577 return this->vector_elements
* N
;
1580 /* (5) If the member is a column-major matrix with <C> columns and
1581 * <R> rows, the matrix is stored identically to an array of
1582 * <C> column vectors with <R> components each, according to
1585 * (6) If the member is an array of <S> column-major matrices with <C>
1586 * columns and <R> rows, the matrix is stored identically to a row of
1587 * <S>*<C> column vectors with <R> components each, according to rule
1590 * (7) If the member is a row-major matrix with <C> columns and <R>
1591 * rows, the matrix is stored identically to an array of <R>
1592 * row vectors with <C> components each, according to rule (4).
1594 * (8) If the member is an array of <S> row-major matrices with <C> columns
1595 * and <R> rows, the matrix is stored identically to a row of <S>*<R>
1596 * row vectors with <C> components each, according to rule (4).
1598 if (this->without_array()->is_matrix()) {
1599 const struct glsl_type
*element_type
;
1600 const struct glsl_type
*vec_type
;
1601 unsigned int array_len
;
1603 if (this->is_array()) {
1604 element_type
= this->without_array();
1605 array_len
= this->arrays_of_arrays_size();
1607 element_type
= this;
1612 vec_type
= get_instance(element_type
->base_type
,
1613 element_type
->matrix_columns
, 1);
1615 array_len
*= element_type
->vector_elements
;
1617 vec_type
= get_instance(element_type
->base_type
,
1618 element_type
->vector_elements
, 1);
1619 array_len
*= element_type
->matrix_columns
;
1621 const glsl_type
*array_type
= glsl_type::get_array_instance(vec_type
,
1624 return array_type
->std140_size(false);
1627 /* (4) If the member is an array of scalars or vectors, the base alignment
1628 * and array stride are set to match the base alignment of a single
1629 * array element, according to rules (1), (2), and (3), and rounded up
1630 * to the base alignment of a vec4. The array may have padding at the
1631 * end; the base offset of the member following the array is rounded up
1632 * to the next multiple of the base alignment.
1634 * (10) If the member is an array of <S> structures, the <S> elements of
1635 * the array are laid out in order, according to rule (9).
1637 if (this->is_array()) {
1638 if (this->without_array()->is_record()) {
1639 return this->arrays_of_arrays_size() *
1640 this->without_array()->std140_size(row_major
);
1642 unsigned element_base_align
=
1643 this->without_array()->std140_base_alignment(row_major
);
1644 return this->arrays_of_arrays_size() * MAX2(element_base_align
, 16);
1648 /* (9) If the member is a structure, the base alignment of the
1649 * structure is <N>, where <N> is the largest base alignment
1650 * value of any of its members, and rounded up to the base
1651 * alignment of a vec4. The individual members of this
1652 * sub-structure are then assigned offsets by applying this set
1653 * of rules recursively, where the base offset of the first
1654 * member of the sub-structure is equal to the aligned offset
1655 * of the structure. The structure may have padding at the end;
1656 * the base offset of the member following the sub-structure is
1657 * rounded up to the next multiple of the base alignment of the
1660 if (this->is_record() || this->is_interface()) {
1662 unsigned max_align
= 0;
1664 for (unsigned i
= 0; i
< this->length
; i
++) {
1665 bool field_row_major
= row_major
;
1666 const enum glsl_matrix_layout matrix_layout
=
1667 glsl_matrix_layout(this->fields
.structure
[i
].matrix_layout
);
1668 if (matrix_layout
== GLSL_MATRIX_LAYOUT_ROW_MAJOR
) {
1669 field_row_major
= true;
1670 } else if (matrix_layout
== GLSL_MATRIX_LAYOUT_COLUMN_MAJOR
) {
1671 field_row_major
= false;
1674 const struct glsl_type
*field_type
= this->fields
.structure
[i
].type
;
1675 unsigned align
= field_type
->std140_base_alignment(field_row_major
);
1677 /* Ignore unsized arrays when calculating size */
1678 if (field_type
->is_unsized_array())
1681 size
= glsl_align(size
, align
);
1682 size
+= field_type
->std140_size(field_row_major
);
1684 max_align
= MAX2(align
, max_align
);
1686 if (field_type
->is_record() && (i
+ 1 < this->length
))
1687 size
= glsl_align(size
, 16);
1689 size
= glsl_align(size
, MAX2(max_align
, 16));
1693 assert(!"not reached");
1698 glsl_type::std430_base_alignment(bool row_major
) const
1701 unsigned N
= is_64bit() ? 8 : 4;
1703 /* (1) If the member is a scalar consuming <N> basic machine units, the
1704 * base alignment is <N>.
1706 * (2) If the member is a two- or four-component vector with components
1707 * consuming <N> basic machine units, the base alignment is 2<N> or
1708 * 4<N>, respectively.
1710 * (3) If the member is a three-component vector with components consuming
1711 * <N> basic machine units, the base alignment is 4<N>.
1713 if (this->is_scalar() || this->is_vector()) {
1714 switch (this->vector_elements
) {
1725 /* OpenGL 4.30 spec, section 7.6.2.2 "Standard Uniform Block Layout":
1727 * "When using the std430 storage layout, shader storage blocks will be
1728 * laid out in buffer storage identically to uniform and shader storage
1729 * blocks using the std140 layout, except that the base alignment and
1730 * stride of arrays of scalars and vectors in rule 4 and of structures
1731 * in rule 9 are not rounded up a multiple of the base alignment of a vec4.
1734 /* (1) If the member is a scalar consuming <N> basic machine units, the
1735 * base alignment is <N>.
1737 * (2) If the member is a two- or four-component vector with components
1738 * consuming <N> basic machine units, the base alignment is 2<N> or
1739 * 4<N>, respectively.
1741 * (3) If the member is a three-component vector with components consuming
1742 * <N> basic machine units, the base alignment is 4<N>.
1744 if (this->is_array())
1745 return this->fields
.array
->std430_base_alignment(row_major
);
1747 /* (5) If the member is a column-major matrix with <C> columns and
1748 * <R> rows, the matrix is stored identically to an array of
1749 * <C> column vectors with <R> components each, according to
1752 * (7) If the member is a row-major matrix with <C> columns and <R>
1753 * rows, the matrix is stored identically to an array of <R>
1754 * row vectors with <C> components each, according to rule (4).
1756 if (this->is_matrix()) {
1757 const struct glsl_type
*vec_type
, *array_type
;
1758 int c
= this->matrix_columns
;
1759 int r
= this->vector_elements
;
1762 vec_type
= get_instance(base_type
, c
, 1);
1763 array_type
= glsl_type::get_array_instance(vec_type
, r
);
1765 vec_type
= get_instance(base_type
, r
, 1);
1766 array_type
= glsl_type::get_array_instance(vec_type
, c
);
1769 return array_type
->std430_base_alignment(false);
1772 /* (9) If the member is a structure, the base alignment of the
1773 * structure is <N>, where <N> is the largest base alignment
1774 * value of any of its members, and rounded up to the base
1775 * alignment of a vec4. The individual members of this
1776 * sub-structure are then assigned offsets by applying this set
1777 * of rules recursively, where the base offset of the first
1778 * member of the sub-structure is equal to the aligned offset
1779 * of the structure. The structure may have padding at the end;
1780 * the base offset of the member following the sub-structure is
1781 * rounded up to the next multiple of the base alignment of the
1784 if (this->is_record()) {
1785 unsigned base_alignment
= 0;
1786 for (unsigned i
= 0; i
< this->length
; i
++) {
1787 bool field_row_major
= row_major
;
1788 const enum glsl_matrix_layout matrix_layout
=
1789 glsl_matrix_layout(this->fields
.structure
[i
].matrix_layout
);
1790 if (matrix_layout
== GLSL_MATRIX_LAYOUT_ROW_MAJOR
) {
1791 field_row_major
= true;
1792 } else if (matrix_layout
== GLSL_MATRIX_LAYOUT_COLUMN_MAJOR
) {
1793 field_row_major
= false;
1796 const struct glsl_type
*field_type
= this->fields
.structure
[i
].type
;
1797 base_alignment
= MAX2(base_alignment
,
1798 field_type
->std430_base_alignment(field_row_major
));
1800 assert(base_alignment
> 0);
1801 return base_alignment
;
1803 assert(!"not reached");
1808 glsl_type::std430_array_stride(bool row_major
) const
1810 unsigned N
= is_64bit() ? 8 : 4;
1812 /* Notice that the array stride of a vec3 is not 3 * N but 4 * N.
1813 * See OpenGL 4.30 spec, section 7.6.2.2 "Standard Uniform Block Layout"
1815 * (3) If the member is a three-component vector with components consuming
1816 * <N> basic machine units, the base alignment is 4<N>.
1818 if (this->is_vector() && this->vector_elements
== 3)
1821 /* By default use std430_size(row_major) */
1822 return this->std430_size(row_major
);
1826 glsl_type::std430_size(bool row_major
) const
1828 unsigned N
= is_64bit() ? 8 : 4;
1830 /* OpenGL 4.30 spec, section 7.6.2.2 "Standard Uniform Block Layout":
1832 * "When using the std430 storage layout, shader storage blocks will be
1833 * laid out in buffer storage identically to uniform and shader storage
1834 * blocks using the std140 layout, except that the base alignment and
1835 * stride of arrays of scalars and vectors in rule 4 and of structures
1836 * in rule 9 are not rounded up a multiple of the base alignment of a vec4.
1838 if (this->is_scalar() || this->is_vector())
1839 return this->vector_elements
* N
;
1841 if (this->without_array()->is_matrix()) {
1842 const struct glsl_type
*element_type
;
1843 const struct glsl_type
*vec_type
;
1844 unsigned int array_len
;
1846 if (this->is_array()) {
1847 element_type
= this->without_array();
1848 array_len
= this->arrays_of_arrays_size();
1850 element_type
= this;
1855 vec_type
= get_instance(element_type
->base_type
,
1856 element_type
->matrix_columns
, 1);
1858 array_len
*= element_type
->vector_elements
;
1860 vec_type
= get_instance(element_type
->base_type
,
1861 element_type
->vector_elements
, 1);
1862 array_len
*= element_type
->matrix_columns
;
1864 const glsl_type
*array_type
= glsl_type::get_array_instance(vec_type
,
1867 return array_type
->std430_size(false);
1870 if (this->is_array()) {
1871 if (this->without_array()->is_record())
1872 return this->arrays_of_arrays_size() *
1873 this->without_array()->std430_size(row_major
);
1875 return this->arrays_of_arrays_size() *
1876 this->without_array()->std430_base_alignment(row_major
);
1879 if (this->is_record() || this->is_interface()) {
1881 unsigned max_align
= 0;
1883 for (unsigned i
= 0; i
< this->length
; i
++) {
1884 bool field_row_major
= row_major
;
1885 const enum glsl_matrix_layout matrix_layout
=
1886 glsl_matrix_layout(this->fields
.structure
[i
].matrix_layout
);
1887 if (matrix_layout
== GLSL_MATRIX_LAYOUT_ROW_MAJOR
) {
1888 field_row_major
= true;
1889 } else if (matrix_layout
== GLSL_MATRIX_LAYOUT_COLUMN_MAJOR
) {
1890 field_row_major
= false;
1893 const struct glsl_type
*field_type
= this->fields
.structure
[i
].type
;
1894 unsigned align
= field_type
->std430_base_alignment(field_row_major
);
1895 size
= glsl_align(size
, align
);
1896 size
+= field_type
->std430_size(field_row_major
);
1898 max_align
= MAX2(align
, max_align
);
1900 size
= glsl_align(size
, max_align
);
1904 assert(!"not reached");
1909 glsl_type::count_attribute_slots(bool is_vertex_input
) const
1911 /* From page 31 (page 37 of the PDF) of the GLSL 1.50 spec:
1913 * "A scalar input counts the same amount against this limit as a vec4,
1914 * so applications may want to consider packing groups of four
1915 * unrelated float inputs together into a vector to better utilize the
1916 * capabilities of the underlying hardware. A matrix input will use up
1917 * multiple locations. The number of locations used will equal the
1918 * number of columns in the matrix."
1920 * The spec does not explicitly say how arrays are counted. However, it
1921 * should be safe to assume the total number of slots consumed by an array
1922 * is the number of entries in the array multiplied by the number of slots
1923 * consumed by a single element of the array.
1925 * The spec says nothing about how structs are counted, because vertex
1926 * attributes are not allowed to be (or contain) structs. However, Mesa
1927 * allows varying structs, the number of varying slots taken up by a
1928 * varying struct is simply equal to the sum of the number of slots taken
1929 * up by each element.
1931 * Doubles are counted different depending on whether they are vertex
1932 * inputs or everything else. Vertex inputs from ARB_vertex_attrib_64bit
1933 * take one location no matter what size they are, otherwise dvec3/4
1934 * take two locations.
1936 switch (this->base_type
) {
1937 case GLSL_TYPE_UINT
:
1939 case GLSL_TYPE_FLOAT
:
1940 case GLSL_TYPE_BOOL
:
1941 return this->matrix_columns
;
1942 case GLSL_TYPE_DOUBLE
:
1943 if (this->vector_elements
> 2 && !is_vertex_input
)
1944 return this->matrix_columns
* 2;
1946 return this->matrix_columns
;
1947 case GLSL_TYPE_STRUCT
:
1948 case GLSL_TYPE_INTERFACE
: {
1951 for (unsigned i
= 0; i
< this->length
; i
++)
1952 size
+= this->fields
.structure
[i
].type
->count_attribute_slots(is_vertex_input
);
1957 case GLSL_TYPE_ARRAY
:
1958 return this->length
* this->fields
.array
->count_attribute_slots(is_vertex_input
);
1960 case GLSL_TYPE_FUNCTION
:
1961 case GLSL_TYPE_SAMPLER
:
1962 case GLSL_TYPE_IMAGE
:
1963 case GLSL_TYPE_ATOMIC_UINT
:
1964 case GLSL_TYPE_VOID
:
1965 case GLSL_TYPE_SUBROUTINE
:
1966 case GLSL_TYPE_ERROR
:
1970 assert(!"Unexpected type in count_attribute_slots()");
1976 glsl_type::coordinate_components() const
1980 switch (sampler_dimensionality
) {
1981 case GLSL_SAMPLER_DIM_1D
:
1982 case GLSL_SAMPLER_DIM_BUF
:
1985 case GLSL_SAMPLER_DIM_2D
:
1986 case GLSL_SAMPLER_DIM_RECT
:
1987 case GLSL_SAMPLER_DIM_MS
:
1988 case GLSL_SAMPLER_DIM_EXTERNAL
:
1989 case GLSL_SAMPLER_DIM_SUBPASS
:
1992 case GLSL_SAMPLER_DIM_3D
:
1993 case GLSL_SAMPLER_DIM_CUBE
:
1997 assert(!"Should not get here.");
2002 /* Array textures need an additional component for the array index, except
2003 * for cubemap array images that behave like a 2D array of interleaved
2006 if (sampler_array
&&
2007 !(base_type
== GLSL_TYPE_IMAGE
&&
2008 sampler_dimensionality
== GLSL_SAMPLER_DIM_CUBE
))
2015 * Declarations of type flyweights (glsl_type::_foo_type) and
2016 * convenience pointers (glsl_type::foo_type).
2019 #define DECL_TYPE(NAME, ...) \
2020 const glsl_type glsl_type::_##NAME##_type = glsl_type(__VA_ARGS__, #NAME); \
2021 const glsl_type *const glsl_type::NAME##_type = &glsl_type::_##NAME##_type;
2023 #define STRUCT_TYPE(NAME)
2025 #include "compiler/builtin_type_macros.h"