1 /* 2 * Copyright 2010 Intel Corporation 3 * 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: 10 * 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 13 * Software. 14 * 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. 22 */ 23 24 #ifndef GLSL_PARSER_EXTRAS_H 25 #define GLSL_PARSER_EXTRAS_H 26 27 /* 28 * Most of the definitions here only apply to C++ 29 */ 30 #ifdef __cplusplus 31 32 33 #include <stdlib.h> 34 #include "glsl_symbol_table.h" 35 36 /* THIS is a macro defined somewhere deep in the Windows MSVC header files. 37 * Undefine it here to avoid collision with the lexer's THIS token. 38 */ 39 #undef THIS 40 41 struct gl_context; 42 43 struct glsl_switch_state { 44 /** Temporary variables needed for switch statement. */ 45 ir_variable *test_var; 46 ir_variable *is_fallthru_var; 47 class ast_switch_statement *switch_nesting_ast; 48 49 /** Used to detect if 'continue' was called inside a switch. */ 50 ir_variable *continue_inside; 51 52 /** Used to set condition if 'default' label should be chosen. */ 53 ir_variable *run_default; 54 55 /** Table of constant values already used in case labels */ 56 struct hash_table *labels_ht; 57 class ast_case_label *previous_default; 58 59 bool is_switch_innermost; // if switch stmt is closest to break, ... 60 }; 61 62 const char * 63 glsl_compute_version_string(void *mem_ctx, bool is_es, unsigned version); 64 65 typedef struct YYLTYPE { 66 int first_line; 67 int first_column; 68 int last_line; 69 int last_column; 70 unsigned source; 71 /* Path for ARB_shading_language_include include source */ 72 char *path; 73 } YYLTYPE; 74 # define YYLTYPE_IS_DECLARED 1 75 # define YYLTYPE_IS_TRIVIAL 1 76 77 extern void _mesa_glsl_error(YYLTYPE *locp, _mesa_glsl_parse_state *state, 78 const char *fmt, ...); 79 80 81 struct _mesa_glsl_parse_state { 82 _mesa_glsl_parse_state(struct gl_context *_ctx, gl_shader_stage stage, 83 void *mem_ctx); 84 85 DECLARE_RZALLOC_CXX_OPERATORS(_mesa_glsl_parse_state); 86 87 /** 88 * Generate a string representing the GLSL version currently being compiled 89 * (useful for error messages). 90 */ 91 const char *get_version_string() 92 { 93 return glsl_compute_version_string(this, this->es_shader, 94 this->language_version); 95 } 96 97 /** 98 * Determine whether the current GLSL version is sufficiently high to 99 * support a certain feature. 100 * 101 * \param required_glsl_version is the desktop GLSL version that is 102 * required to support the feature, or 0 if no version of desktop GLSL 103 * supports the feature. 104 * 105 * \param required_glsl_es_version is the GLSL ES version that is required 106 * to support the feature, or 0 if no version of GLSL ES supports the 107 * feature. 108 */ 109 bool is_version(unsigned required_glsl_version, 110 unsigned required_glsl_es_version) const 111 { 112 unsigned required_version = this->es_shader ? 113 required_glsl_es_version : required_glsl_version; 114 unsigned this_version = this->forced_language_version 115 ? this->forced_language_version : this->language_version; 116 return required_version != 0 117 && this_version >= required_version; 118 } 119 120 bool check_version(unsigned required_glsl_version, 121 unsigned required_glsl_es_version, 122 YYLTYPE *locp, const char *fmt, ...) PRINTFLIKE(5, 6); 123 124 bool check_arrays_of_arrays_allowed(YYLTYPE *locp) 125 { 126 if (!(ARB_arrays_of_arrays_enable || is_version(430, 310))) { 127 const char *const requirement = this->es_shader 128 ? "GLSL ES 3.10" 129 : "GL_ARB_arrays_of_arrays or GLSL 4.30"; 130 _mesa_glsl_error(locp, this, 131 "%s required for defining arrays of arrays.", 132 requirement); 133 return false; 134 } 135 return true; 136 } 137 138 bool check_precision_qualifiers_allowed(YYLTYPE *locp) 139 { 140 return check_version(130, 100, locp, 141 "precision qualifiers are forbidden"); 142 } 143 144 bool check_bitwise_operations_allowed(YYLTYPE *locp) 145 { 146 return EXT_gpu_shader4_enable || 147 check_version(130, 300, locp, "bit-wise operations are forbidden"); 148 } 149 150 bool check_explicit_attrib_stream_allowed(YYLTYPE *locp) 151 { 152 if (!this->has_explicit_attrib_stream()) { 153 const char *const requirement = "GL_ARB_gpu_shader5 extension or GLSL 4.00"; 154 155 _mesa_glsl_error(locp, this, "explicit stream requires %s", 156 requirement); 157 return false; 158 } 159 160 return true; 161 } 162 163 bool check_explicit_attrib_location_allowed(YYLTYPE *locp, 164 const ir_variable *var) 165 { 166 if (!this->has_explicit_attrib_location()) { 167 const char *const requirement = this->es_shader 168 ? "GLSL ES 3.00" 169 : "GL_ARB_explicit_attrib_location extension or GLSL 3.30"; 170 171 _mesa_glsl_error(locp, this, "%s explicit location requires %s", 172 mode_string(var), requirement); 173 return false; 174 } 175 176 return true; 177 } 178 179 bool check_separate_shader_objects_allowed(YYLTYPE *locp, 180 const ir_variable *var) 181 { 182 if (!this->has_separate_shader_objects()) { 183 const char *const requirement = this->es_shader 184 ? "GL_EXT_separate_shader_objects extension or GLSL ES 3.10" 185 : "GL_ARB_separate_shader_objects extension or GLSL 4.20"; 186 187 _mesa_glsl_error(locp, this, "%s explicit location requires %s", 188 mode_string(var), requirement); 189 return false; 190 } 191 192 return true; 193 } 194 195 bool check_explicit_uniform_location_allowed(YYLTYPE *locp, 196 const ir_variable *) 197 { 198 if (!this->has_explicit_attrib_location() || 199 !this->has_explicit_uniform_location()) { 200 const char *const requirement = this->es_shader 201 ? "GLSL ES 3.10" 202 : "GL_ARB_explicit_uniform_location and either " 203 "GL_ARB_explicit_attrib_location or GLSL 3.30."; 204 205 _mesa_glsl_error(locp, this, 206 "uniform explicit location requires %s", 207 requirement); 208 return false; 209 } 210 211 return true; 212 } 213 214 bool has_atomic_counters() const 215 { 216 return ARB_shader_atomic_counters_enable || is_version(420, 310); 217 } 218 219 bool has_enhanced_layouts() const 220 { 221 return ARB_enhanced_layouts_enable || is_version(440, 0); 222 } 223 224 bool has_explicit_attrib_stream() const 225 { 226 return ARB_gpu_shader5_enable || is_version(400, 0); 227 } 228 229 bool has_explicit_attrib_location() const 230 { 231 return ARB_explicit_attrib_location_enable || is_version(330, 300); 232 } 233 234 bool has_explicit_uniform_location() const 235 { 236 return ARB_explicit_uniform_location_enable || is_version(430, 310); 237 } 238 239 bool has_uniform_buffer_objects() const 240 { 241 return ARB_uniform_buffer_object_enable || is_version(140, 300); 242 } 243 244 bool has_shader_storage_buffer_objects() const 245 { 246 return ARB_shader_storage_buffer_object_enable || is_version(430, 310); 247 } 248 249 bool has_separate_shader_objects() const 250 { 251 return ARB_separate_shader_objects_enable || is_version(410, 310) 252 || EXT_separate_shader_objects_enable; 253 } 254 255 bool has_double() const 256 { 257 return ARB_gpu_shader_fp64_enable || is_version(400, 0); 258 } 259 260 bool has_int64() const 261 { 262 return ARB_gpu_shader_int64_enable || 263 AMD_gpu_shader_int64_enable; 264 } 265 266 bool has_420pack() const 267 { 268 return ARB_shading_language_420pack_enable || is_version(420, 0); 269 } 270 271 bool has_420pack_or_es31() const 272 { 273 return ARB_shading_language_420pack_enable || is_version(420, 310); 274 } 275 276 bool has_compute_shader() const 277 { 278 return ARB_compute_shader_enable || is_version(430, 310); 279 } 280 281 bool has_shader_io_blocks() const 282 { 283 /* The OES_geometry_shader_specification says: 284 * 285 * "If the OES_geometry_shader extension is enabled, the 286 * OES_shader_io_blocks extension is also implicitly enabled." 287 * 288 * The OES_tessellation_shader extension has similar wording. 289 */ 290 return OES_shader_io_blocks_enable || 291 EXT_shader_io_blocks_enable || 292 OES_geometry_shader_enable || 293 EXT_geometry_shader_enable || 294 OES_tessellation_shader_enable || 295 EXT_tessellation_shader_enable || 296 297 is_version(150, 320); 298 } 299 300 bool has_geometry_shader() const 301 { 302 return OES_geometry_shader_enable || EXT_geometry_shader_enable || 303 is_version(150, 320); 304 } 305 306 bool has_tessellation_shader() const 307 { 308 return ARB_tessellation_shader_enable || 309 OES_tessellation_shader_enable || 310 EXT_tessellation_shader_enable || 311 is_version(400, 320); 312 } 313 314 bool has_clip_distance() const 315 { 316 return EXT_clip_cull_distance_enable || is_version(130, 0); 317 } 318 319 bool has_cull_distance() const 320 { 321 return EXT_clip_cull_distance_enable || 322 ARB_cull_distance_enable || 323 is_version(450, 0); 324 } 325 326 bool has_framebuffer_fetch() const 327 { 328 return EXT_shader_framebuffer_fetch_enable || 329 EXT_shader_framebuffer_fetch_non_coherent_enable; 330 } 331 332 bool has_texture_cube_map_array() const 333 { 334 return ARB_texture_cube_map_array_enable || 335 EXT_texture_cube_map_array_enable || 336 OES_texture_cube_map_array_enable || 337 is_version(400, 320); 338 } 339 340 bool has_shader_image_load_store() const 341 { 342 return ARB_shader_image_load_store_enable || 343 EXT_shader_image_load_store_enable || 344 is_version(420, 310); 345 } 346 347 bool has_bindless() const 348 { 349 return ARB_bindless_texture_enable; 350 } 351 352 bool has_image_load_formatted() const 353 { 354 return EXT_shader_image_load_formatted_enable; 355 } 356 357 bool has_implicit_conversions() const 358 { 359 return EXT_shader_implicit_conversions_enable || 360 is_version(allow_glsl_120_subset_in_110 ? 110 : 120, 0); 361 } 362 363 bool has_implicit_int_to_uint_conversion() const 364 { 365 return ARB_gpu_shader5_enable || 366 MESA_shader_integer_functions_enable || 367 EXT_shader_implicit_conversions_enable || 368 is_version(400, 0); 369 } 370 371 void set_valid_gl_and_glsl_versions(YYLTYPE *locp); 372 373 void process_version_directive(YYLTYPE *locp, int version, 374 const char *ident); 375 376 struct gl_context *const ctx; 377 void *scanner; 378 exec_list translation_unit; 379 glsl_symbol_table *symbols; 380 381 void *linalloc; 382 383 unsigned num_supported_versions; 384 struct { 385 unsigned ver; 386 uint8_t gl_ver; 387 bool es; 388 } supported_versions[17]; 389 390 bool es_shader; 391 bool compat_shader; 392 unsigned language_version; 393 unsigned forced_language_version; 394 /* Bitfield of ir_variable_mode to zero init */ 395 uint32_t zero_init; 396 unsigned gl_version; 397 gl_shader_stage stage; 398 399 /** 400 * Default uniform layout qualifiers tracked during parsing. 401 * Currently affects uniform blocks and uniform buffer variables in 402 * those blocks. 403 */ 404 struct ast_type_qualifier *default_uniform_qualifier; 405 406 /** 407 * Default shader storage layout qualifiers tracked during parsing. 408 * Currently affects shader storage blocks and shader storage buffer 409 * variables in those blocks. 410 */ 411 struct ast_type_qualifier *default_shader_storage_qualifier; 412 413 /** 414 * Variables to track different cases if a fragment shader redeclares 415 * built-in variable gl_FragCoord. 416 * 417 * Note: These values are computed at ast_to_hir time rather than at parse 418 * time. 419 */ 420 bool fs_redeclares_gl_fragcoord; 421 bool fs_origin_upper_left; 422 bool fs_pixel_center_integer; 423 bool fs_redeclares_gl_fragcoord_with_no_layout_qualifiers; 424 425 /** 426 * True if a geometry shader input primitive type or tessellation control 427 * output vertices were specified using a layout directive. 428 * 429 * Note: these values are computed at ast_to_hir time rather than at parse 430 * time. 431 */ 432 bool gs_input_prim_type_specified; 433 bool tcs_output_vertices_specified; 434 435 /** 436 * Input layout qualifiers from GLSL 1.50 (geometry shader controls), 437 * and GLSL 4.00 (tessellation evaluation shader) 438 */ 439 struct ast_type_qualifier *in_qualifier; 440 441 /** 442 * True if a compute shader input local size was specified using a layout 443 * directive. 444 * 445 * Note: this value is computed at ast_to_hir time rather than at parse 446 * time. 447 */ 448 bool cs_input_local_size_specified; 449 450 /** 451 * If cs_input_local_size_specified is true, the local size that was 452 * specified. Otherwise ignored. 453 */ 454 unsigned cs_input_local_size[3]; 455 456 /** 457 * True if a compute shader input local variable size was specified using 458 * a layout directive as specified by ARB_compute_variable_group_size. 459 */ 460 bool cs_input_local_size_variable_specified; 461 462 /** 463 * Arrangement of invocations used to calculate derivatives in a compute 464 * shader. From NV_compute_shader_derivatives. 465 */ 466 enum gl_derivative_group cs_derivative_group; 467 468 /** 469 * True if a shader declare bindless_sampler/bindless_image, and 470 * respectively bound_sampler/bound_image at global scope as specified by 471 * ARB_bindless_texture. 472 */ 473 bool bindless_sampler_specified; 474 bool bindless_image_specified; 475 bool bound_sampler_specified; 476 bool bound_image_specified; 477 478 /** 479 * Output layout qualifiers from GLSL 1.50 (geometry shader controls), 480 * and GLSL 4.00 (tessellation control shader). 481 */ 482 struct ast_type_qualifier *out_qualifier; 483 484 /** 485 * Printable list of GLSL versions supported by the current context 486 * 487 * \note 488 * This string should probably be generated per-context instead of per 489 * invokation of the compiler. This should be changed when the method of 490 * tracking supported GLSL versions changes. 491 */ 492 const char *supported_version_string; 493 494 /** 495 * Implementation defined limits that affect built-in variables, etc. 496 * 497 * \sa struct gl_constants (in mtypes.h) 498 */ 499 struct { 500 /* 1.10 */ 501 unsigned MaxLights; 502 unsigned MaxClipPlanes; 503 unsigned MaxTextureUnits; 504 unsigned MaxTextureCoords; 505 unsigned MaxVertexAttribs; 506 unsigned MaxVertexUniformComponents; 507 unsigned MaxVertexTextureImageUnits; 508 unsigned MaxCombinedTextureImageUnits; 509 unsigned MaxTextureImageUnits; 510 unsigned MaxFragmentUniformComponents; 511 512 /* ARB_draw_buffers */ 513 unsigned MaxDrawBuffers; 514 515 /* ARB_enhanced_layouts */ 516 unsigned MaxTransformFeedbackBuffers; 517 unsigned MaxTransformFeedbackInterleavedComponents; 518 519 /* ARB_blend_func_extended */ 520 unsigned MaxDualSourceDrawBuffers; 521 522 /* 3.00 ES */ 523 int MinProgramTexelOffset; 524 int MaxProgramTexelOffset; 525 526 /* 1.50 */ 527 unsigned MaxVertexOutputComponents; 528 unsigned MaxGeometryInputComponents; 529 unsigned MaxGeometryOutputComponents; 530 unsigned MaxGeometryShaderInvocations; 531 unsigned MaxFragmentInputComponents; 532 unsigned MaxGeometryTextureImageUnits; 533 unsigned MaxGeometryOutputVertices; 534 unsigned MaxGeometryTotalOutputComponents; 535 unsigned MaxGeometryUniformComponents; 536 537 /* ARB_shader_atomic_counters */ 538 unsigned MaxVertexAtomicCounters; 539 unsigned MaxTessControlAtomicCounters; 540 unsigned MaxTessEvaluationAtomicCounters; 541 unsigned MaxGeometryAtomicCounters; 542 unsigned MaxFragmentAtomicCounters; 543 unsigned MaxCombinedAtomicCounters; 544 unsigned MaxAtomicBufferBindings; 545 546 /* These are also atomic counter related, but they weren't added to 547 * until atomic counters were added to core in GLSL 4.20 and GLSL ES 548 * 3.10. 549 */ 550 unsigned MaxVertexAtomicCounterBuffers; 551 unsigned MaxTessControlAtomicCounterBuffers; 552 unsigned MaxTessEvaluationAtomicCounterBuffers; 553 unsigned MaxGeometryAtomicCounterBuffers; 554 unsigned MaxFragmentAtomicCounterBuffers; 555 unsigned MaxCombinedAtomicCounterBuffers; 556 unsigned MaxAtomicCounterBufferSize; 557 558 /* ARB_compute_shader */ 559 unsigned MaxComputeAtomicCounterBuffers; 560 unsigned MaxComputeAtomicCounters; 561 unsigned MaxComputeImageUniforms; 562 unsigned MaxComputeTextureImageUnits; 563 unsigned MaxComputeUniformComponents; 564 unsigned MaxComputeWorkGroupCount[3]; 565 unsigned MaxComputeWorkGroupSize[3]; 566 567 /* ARB_shader_image_load_store */ 568 unsigned MaxImageUnits; 569 unsigned MaxCombinedShaderOutputResources; 570 unsigned MaxImageSamples; 571 unsigned MaxVertexImageUniforms; 572 unsigned MaxTessControlImageUniforms; 573 unsigned MaxTessEvaluationImageUniforms; 574 unsigned MaxGeometryImageUniforms; 575 unsigned MaxFragmentImageUniforms; 576 unsigned MaxCombinedImageUniforms; 577 578 /* ARB_viewport_array */ 579 unsigned MaxViewports; 580 581 /* ARB_tessellation_shader */ 582 unsigned MaxPatchVertices; 583 unsigned MaxTessGenLevel; 584 unsigned MaxTessControlInputComponents; 585 unsigned MaxTessControlOutputComponents; 586 unsigned MaxTessControlTextureImageUnits; 587 unsigned MaxTessEvaluationInputComponents; 588 unsigned MaxTessEvaluationOutputComponents; 589 unsigned MaxTessEvaluationTextureImageUnits; 590 unsigned MaxTessPatchComponents; 591 unsigned MaxTessControlTotalOutputComponents; 592 unsigned MaxTessControlUniformComponents; 593 unsigned MaxTessEvaluationUniformComponents; 594 595 /* GL 4.5 / OES_sample_variables */ 596 unsigned MaxSamples; 597 } Const; 598 599 /** 600 * During AST to IR conversion, pointer to current IR function 601 * 602 * Will be \c NULL whenever the AST to IR conversion is not inside a 603 * function definition. 604 */ 605 class ir_function_signature *current_function; 606 607 /** 608 * During AST to IR conversion, pointer to the toplevel IR 609 * instruction list being generated. 610 */ 611 exec_list *toplevel_ir; 612 613 /** Have we found a return statement in this function? */ 614 bool found_return; 615 616 /** Have we found the interlock builtins in this function? */ 617 bool found_begin_interlock; 618 bool found_end_interlock; 619 620 /** Was there an error during compilation? */ 621 bool error; 622 623 /** 624 * Are all shader inputs / outputs invariant? 625 * 626 * This is set when the 'STDGL invariant(all)' pragma is used. 627 */ 628 bool all_invariant; 629 630 /** Loop or switch statement containing the current instructions. */ 631 class ast_iteration_statement *loop_nesting_ast; 632 633 struct glsl_switch_state switch_state; 634 635 /** List of structures defined in user code. */ 636 const glsl_type **user_structures; 637 unsigned num_user_structures; 638 639 char *info_log; 640 641 /** 642 * Are warnings enabled? 643 * 644 * Emission of warngins is controlled by '#pragma warning(...)'. 645 */ 646 bool warnings_enabled; 647 648 /** 649 * \name Enable bits for GLSL extensions 650 */ 651 /*@{*/ 652 /* ARB extensions go here, sorted alphabetically. 653 */ 654 bool ARB_ES3_1_compatibility_enable; 655 bool ARB_ES3_1_compatibility_warn; 656 bool ARB_ES3_2_compatibility_enable; 657 bool ARB_ES3_2_compatibility_warn; 658 bool ARB_arrays_of_arrays_enable; 659 bool ARB_arrays_of_arrays_warn; 660 bool ARB_bindless_texture_enable; 661 bool ARB_bindless_texture_warn; 662 bool ARB_compatibility_enable; 663 bool ARB_compatibility_warn; 664 bool ARB_compute_shader_enable; 665 bool ARB_compute_shader_warn; 666 bool ARB_compute_variable_group_size_enable; 667 bool ARB_compute_variable_group_size_warn; 668 bool ARB_conservative_depth_enable; 669 bool ARB_conservative_depth_warn; 670 bool ARB_cull_distance_enable; 671 bool ARB_cull_distance_warn; 672 bool ARB_derivative_control_enable; 673 bool ARB_derivative_control_warn; 674 bool ARB_draw_buffers_enable; 675 bool ARB_draw_buffers_warn; 676 bool ARB_draw_instanced_enable; 677 bool ARB_draw_instanced_warn; 678 bool ARB_enhanced_layouts_enable; 679 bool ARB_enhanced_layouts_warn; 680 bool ARB_explicit_attrib_location_enable; 681 bool ARB_explicit_attrib_location_warn; 682 bool ARB_explicit_uniform_location_enable; 683 bool ARB_explicit_uniform_location_warn; 684 bool ARB_fragment_coord_conventions_enable; 685 bool ARB_fragment_coord_conventions_warn; 686 bool ARB_fragment_layer_viewport_enable; 687 bool ARB_fragment_layer_viewport_warn; 688 bool ARB_fragment_shader_interlock_enable; 689 bool ARB_fragment_shader_interlock_warn; 690 bool ARB_gpu_shader5_enable; 691 bool ARB_gpu_shader5_warn; 692 bool ARB_gpu_shader_fp64_enable; 693 bool ARB_gpu_shader_fp64_warn; 694 bool ARB_gpu_shader_int64_enable; 695 bool ARB_gpu_shader_int64_warn; 696 bool ARB_post_depth_coverage_enable; 697 bool ARB_post_depth_coverage_warn; 698 bool ARB_sample_shading_enable; 699 bool ARB_sample_shading_warn; 700 bool ARB_separate_shader_objects_enable; 701 bool ARB_separate_shader_objects_warn; 702 bool ARB_shader_atomic_counter_ops_enable; 703 bool ARB_shader_atomic_counter_ops_warn; 704 bool ARB_shader_atomic_counters_enable; 705 bool ARB_shader_atomic_counters_warn; 706 bool ARB_shader_ballot_enable; 707 bool ARB_shader_ballot_warn; 708 bool ARB_shader_bit_encoding_enable; 709 bool ARB_shader_bit_encoding_warn; 710 bool ARB_shader_clock_enable; 711 bool ARB_shader_clock_warn; 712 bool ARB_shader_draw_parameters_enable; 713 bool ARB_shader_draw_parameters_warn; 714 bool ARB_shader_group_vote_enable; 715 bool ARB_shader_group_vote_warn; 716 bool ARB_shader_image_load_store_enable; 717 bool ARB_shader_image_load_store_warn; 718 bool ARB_shader_image_size_enable; 719 bool ARB_shader_image_size_warn; 720 bool ARB_shader_precision_enable; 721 bool ARB_shader_precision_warn; 722 bool ARB_shader_stencil_export_enable; 723 bool ARB_shader_stencil_export_warn; 724 bool ARB_shader_storage_buffer_object_enable; 725 bool ARB_shader_storage_buffer_object_warn; 726 bool ARB_shader_subroutine_enable; 727 bool ARB_shader_subroutine_warn; 728 bool ARB_shader_texture_image_samples_enable; 729 bool ARB_shader_texture_image_samples_warn; 730 bool ARB_shader_texture_lod_enable; 731 bool ARB_shader_texture_lod_warn; 732 bool ARB_shader_viewport_layer_array_enable; 733 bool ARB_shader_viewport_layer_array_warn; 734 bool ARB_shading_language_420pack_enable; 735 bool ARB_shading_language_420pack_warn; 736 bool ARB_shading_language_include_enable; 737 bool ARB_shading_language_include_warn; 738 bool ARB_shading_language_packing_enable; 739 bool ARB_shading_language_packing_warn; 740 bool ARB_tessellation_shader_enable; 741 bool ARB_tessellation_shader_warn; 742 bool ARB_texture_cube_map_array_enable; 743 bool ARB_texture_cube_map_array_warn; 744 bool ARB_texture_gather_enable; 745 bool ARB_texture_gather_warn; 746 bool ARB_texture_multisample_enable; 747 bool ARB_texture_multisample_warn; 748 bool ARB_texture_query_levels_enable; 749 bool ARB_texture_query_levels_warn; 750 bool ARB_texture_query_lod_enable; 751 bool ARB_texture_query_lod_warn; 752 bool ARB_texture_rectangle_enable; 753 bool ARB_texture_rectangle_warn; 754 bool ARB_uniform_buffer_object_enable; 755 bool ARB_uniform_buffer_object_warn; 756 bool ARB_vertex_attrib_64bit_enable; 757 bool ARB_vertex_attrib_64bit_warn; 758 bool ARB_viewport_array_enable; 759 bool ARB_viewport_array_warn; 760 761 /* KHR extensions go here, sorted alphabetically. 762 */ 763 bool KHR_blend_equation_advanced_enable; 764 bool KHR_blend_equation_advanced_warn; 765 766 /* OES extensions go here, sorted alphabetically. 767 */ 768 bool OES_EGL_image_external_enable; 769 bool OES_EGL_image_external_warn; 770 bool OES_EGL_image_external_essl3_enable; 771 bool OES_EGL_image_external_essl3_warn; 772 bool OES_geometry_point_size_enable; 773 bool OES_geometry_point_size_warn; 774 bool OES_geometry_shader_enable; 775 bool OES_geometry_shader_warn; 776 bool OES_gpu_shader5_enable; 777 bool OES_gpu_shader5_warn; 778 bool OES_primitive_bounding_box_enable; 779 bool OES_primitive_bounding_box_warn; 780 bool OES_sample_variables_enable; 781 bool OES_sample_variables_warn; 782 bool OES_shader_image_atomic_enable; 783 bool OES_shader_image_atomic_warn; 784 bool OES_shader_io_blocks_enable; 785 bool OES_shader_io_blocks_warn; 786 bool OES_shader_multisample_interpolation_enable; 787 bool OES_shader_multisample_interpolation_warn; 788 bool OES_standard_derivatives_enable; 789 bool OES_standard_derivatives_warn; 790 bool OES_tessellation_point_size_enable; 791 bool OES_tessellation_point_size_warn; 792 bool OES_tessellation_shader_enable; 793 bool OES_tessellation_shader_warn; 794 bool OES_texture_3D_enable; 795 bool OES_texture_3D_warn; 796 bool OES_texture_buffer_enable; 797 bool OES_texture_buffer_warn; 798 bool OES_texture_cube_map_array_enable; 799 bool OES_texture_cube_map_array_warn; 800 bool OES_texture_storage_multisample_2d_array_enable; 801 bool OES_texture_storage_multisample_2d_array_warn; 802 bool OES_viewport_array_enable; 803 bool OES_viewport_array_warn; 804 805 /* All other extensions go here, sorted alphabetically. 806 */ 807 bool AMD_conservative_depth_enable; 808 bool AMD_conservative_depth_warn; 809 bool AMD_gpu_shader_int64_enable; 810 bool AMD_gpu_shader_int64_warn; 811 bool AMD_shader_stencil_export_enable; 812 bool AMD_shader_stencil_export_warn; 813 bool AMD_shader_trinary_minmax_enable; 814 bool AMD_shader_trinary_minmax_warn; 815 bool AMD_texture_texture4_enable; 816 bool AMD_texture_texture4_warn; 817 bool AMD_vertex_shader_layer_enable; 818 bool AMD_vertex_shader_layer_warn; 819 bool AMD_vertex_shader_viewport_index_enable; 820 bool AMD_vertex_shader_viewport_index_warn; 821 bool ANDROID_extension_pack_es31a_enable; 822 bool ANDROID_extension_pack_es31a_warn; 823 bool EXT_blend_func_extended_enable; 824 bool EXT_blend_func_extended_warn; 825 bool EXT_clip_cull_distance_enable; 826 bool EXT_clip_cull_distance_warn; 827 bool EXT_demote_to_helper_invocation_enable; 828 bool EXT_demote_to_helper_invocation_warn; 829 bool EXT_draw_buffers_enable; 830 bool EXT_draw_buffers_warn; 831 bool EXT_draw_instanced_enable; 832 bool EXT_draw_instanced_warn; 833 bool EXT_frag_depth_enable; 834 bool EXT_frag_depth_warn; 835 bool EXT_geometry_point_size_enable; 836 bool EXT_geometry_point_size_warn; 837 bool EXT_geometry_shader_enable; 838 bool EXT_geometry_shader_warn; 839 bool EXT_gpu_shader4_enable; 840 bool EXT_gpu_shader4_warn; 841 bool EXT_gpu_shader5_enable; 842 bool EXT_gpu_shader5_warn; 843 bool EXT_primitive_bounding_box_enable; 844 bool EXT_primitive_bounding_box_warn; 845 bool EXT_separate_shader_objects_enable; 846 bool EXT_separate_shader_objects_warn; 847 bool EXT_shader_framebuffer_fetch_enable; 848 bool EXT_shader_framebuffer_fetch_warn; 849 bool EXT_shader_framebuffer_fetch_non_coherent_enable; 850 bool EXT_shader_framebuffer_fetch_non_coherent_warn; 851 bool EXT_shader_group_vote_enable; 852 bool EXT_shader_group_vote_warn; 853 bool EXT_shader_image_load_formatted_enable; 854 bool EXT_shader_image_load_formatted_warn; 855 bool EXT_shader_image_load_store_enable; 856 bool EXT_shader_image_load_store_warn; 857 bool EXT_shader_implicit_conversions_enable; 858 bool EXT_shader_implicit_conversions_warn; 859 bool EXT_shader_integer_mix_enable; 860 bool EXT_shader_integer_mix_warn; 861 bool EXT_shader_io_blocks_enable; 862 bool EXT_shader_io_blocks_warn; 863 bool EXT_shader_samples_identical_enable; 864 bool EXT_shader_samples_identical_warn; 865 bool EXT_tessellation_point_size_enable; 866 bool EXT_tessellation_point_size_warn; 867 bool EXT_tessellation_shader_enable; 868 bool EXT_tessellation_shader_warn; 869 bool EXT_texture_array_enable; 870 bool EXT_texture_array_warn; 871 bool EXT_texture_buffer_enable; 872 bool EXT_texture_buffer_warn; 873 bool EXT_texture_cube_map_array_enable; 874 bool EXT_texture_cube_map_array_warn; 875 bool EXT_texture_query_lod_enable; 876 bool EXT_texture_query_lod_warn; 877 bool EXT_texture_shadow_lod_enable; 878 bool EXT_texture_shadow_lod_warn; 879 bool INTEL_conservative_rasterization_enable; 880 bool INTEL_conservative_rasterization_warn; 881 bool INTEL_shader_atomic_float_minmax_enable; 882 bool INTEL_shader_atomic_float_minmax_warn; 883 bool INTEL_shader_integer_functions2_enable; 884 bool INTEL_shader_integer_functions2_warn; 885 bool MESA_shader_integer_functions_enable; 886 bool MESA_shader_integer_functions_warn; 887 bool NV_compute_shader_derivatives_enable; 888 bool NV_compute_shader_derivatives_warn; 889 bool NV_fragment_shader_interlock_enable; 890 bool NV_fragment_shader_interlock_warn; 891 bool NV_image_formats_enable; 892 bool NV_image_formats_warn; 893 bool NV_shader_atomic_float_enable; 894 bool NV_shader_atomic_float_warn; 895 bool NV_shader_atomic_int64_enable; 896 bool NV_shader_atomic_int64_warn; 897 bool NV_viewport_array2_enable; 898 bool NV_viewport_array2_warn; 899 /*@}*/ 900 901 /** Extensions supported by the OpenGL implementation. */ 902 const struct gl_extensions *extensions; 903 904 bool uses_builtin_functions; 905 bool fs_uses_gl_fragcoord; 906 907 /** 908 * For geometry shaders, size of the most recently seen input declaration 909 * that was a sized array, or 0 if no sized input array declarations have 910 * been seen. 911 * 912 * Unused for other shader types. 913 */ 914 unsigned gs_input_size; 915 916 bool fs_early_fragment_tests; 917 918 bool fs_inner_coverage; 919 920 bool fs_post_depth_coverage; 921 922 bool fs_pixel_interlock_ordered; 923 bool fs_pixel_interlock_unordered; 924 bool fs_sample_interlock_ordered; 925 bool fs_sample_interlock_unordered; 926 927 unsigned fs_blend_support; 928 929 /** 930 * For tessellation control shaders, size of the most recently seen output 931 * declaration that was a sized array, or 0 if no sized output array 932 * declarations have been seen. 933 * 934 * Unused for other shader types. 935 */ 936 unsigned tcs_output_size; 937 938 /** Atomic counter offsets by binding */ 939 unsigned atomic_counter_offsets[MAX_COMBINED_ATOMIC_BUFFERS]; 940 941 /** Whether gl_Layer output is viewport-relative. */ 942 bool redeclares_gl_layer; 943 bool layer_viewport_relative; 944 945 bool allow_extension_directive_midshader; 946 bool allow_glsl_120_subset_in_110; 947 bool allow_builtin_variable_redeclaration; 948 bool ignore_write_to_readonly_var; 949 950 /** 951 * Known subroutine type declarations. 952 */ 953 int num_subroutine_types; 954 ir_function **subroutine_types; 955 956 /** 957 * Functions that are associated with 958 * subroutine types. 959 */ 960 int num_subroutines; 961 ir_function **subroutines; 962 963 /** 964 * field selection temporary parser storage - 965 * did the parser just parse a dot. 966 */ 967 bool is_field; 968 969 /** 970 * seen values for clip/cull distance sizes 971 * so we can check totals aren't too large. 972 */ 973 unsigned clip_dist_size, cull_dist_size; 974 }; 975 976 # define YYLLOC_DEFAULT(Current, Rhs, N) \ 977 do { \ 978 if (N) \ 979 { \ 980 (Current).first_line = YYRHSLOC(Rhs, 1).first_line; \ 981 (Current).first_column = YYRHSLOC(Rhs, 1).first_column; \ 982 (Current).last_line = YYRHSLOC(Rhs, N).last_line; \ 983 (Current).last_column = YYRHSLOC(Rhs, N).last_column; \ 984 (Current).path = YYRHSLOC(Rhs, N).path; \ 985 } \ 986 else \ 987 { \ 988 (Current).first_line = (Current).last_line = \ 989 YYRHSLOC(Rhs, 0).last_line; \ 990 (Current).first_column = (Current).last_column = \ 991 YYRHSLOC(Rhs, 0).last_column; \ 992 (Current).path = YYRHSLOC(Rhs, 0).path; \ 993 } \ 994 (Current).source = 0; \ 995 } while (0) 996 997 /** 998 * Emit a warning to the shader log 999 * 1000 * \sa _mesa_glsl_error 1001 */ 1002 extern void _mesa_glsl_warning(const YYLTYPE *locp, 1003 _mesa_glsl_parse_state *state, 1004 const char *fmt, ...); 1005 1006 extern void _mesa_glsl_lexer_ctor(struct _mesa_glsl_parse_state *state, 1007 const char *string); 1008 1009 extern void _mesa_glsl_lexer_dtor(struct _mesa_glsl_parse_state *state); 1010 1011 union YYSTYPE; 1012 extern int _mesa_glsl_lexer_lex(union YYSTYPE *yylval, YYLTYPE *yylloc, 1013 void *scanner); 1014 1015 extern int _mesa_glsl_parse(struct _mesa_glsl_parse_state *); 1016 1017 /** 1018 * Process elements of the #extension directive 1019 * 1020 * \return 1021 * If \c name and \c behavior are valid, \c true is returned. Otherwise 1022 * \c false is returned. 1023 */ 1024 extern bool _mesa_glsl_process_extension(const char *name, YYLTYPE *name_locp, 1025 const char *behavior, 1026 YYLTYPE *behavior_locp, 1027 _mesa_glsl_parse_state *state); 1028 1029 #endif /* __cplusplus */ 1030 1031 1032 /* 1033 * These definitions apply to C and C++ 1034 */ 1035 #ifdef __cplusplus 1036 extern "C" { 1037 #endif 1038 1039 struct glcpp_parser; 1040 struct _mesa_glsl_parse_state; 1041 1042 typedef void (*glcpp_extension_iterator)( 1043 struct _mesa_glsl_parse_state *state, 1044 void (*add_builtin_define)(struct glcpp_parser *, const char *, int), 1045 struct glcpp_parser *data, 1046 unsigned version, 1047 bool es); 1048 1049 extern int glcpp_preprocess(void *ctx, const char **shader, char **info_log, 1050 glcpp_extension_iterator extensions, 1051 struct _mesa_glsl_parse_state *state, 1052 struct gl_context *gl_ctx); 1053 1054 extern void 1055 _mesa_glsl_copy_symbols_from_table(struct exec_list *shader_ir, 1056 struct glsl_symbol_table *src, 1057 struct glsl_symbol_table *dest); 1058 1059 #ifdef __cplusplus 1060 } 1061 #endif 1062 1063 1064 #endif /* GLSL_PARSER_EXTRAS_H */ 1065
Indexes created Mon Jul 27 00:28:37 UTC 2026