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 */ get_version_string_mesa_glsl_parse_state91 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 */ is_version_mesa_glsl_parse_state109 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 check_arrays_of_arrays_allowed_mesa_glsl_parse_state124 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 check_precision_qualifiers_allowed_mesa_glsl_parse_state138 bool check_precision_qualifiers_allowed(YYLTYPE *locp) 139 { 140 return check_version(130, 100, locp, 141 "precision qualifiers are forbidden"); 142 } 143 check_bitwise_operations_allowed_mesa_glsl_parse_state144 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 check_explicit_attrib_stream_allowed_mesa_glsl_parse_state150 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 check_explicit_attrib_location_allowed_mesa_glsl_parse_state163 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 check_separate_shader_objects_allowed_mesa_glsl_parse_state179 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 check_explicit_uniform_location_allowed_mesa_glsl_parse_state195 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 has_atomic_counters_mesa_glsl_parse_state214 bool has_atomic_counters() const 215 { 216 return ARB_shader_atomic_counters_enable || is_version(420, 310); 217 } 218 has_enhanced_layouts_mesa_glsl_parse_state219 bool has_enhanced_layouts() const 220 { 221 return ARB_enhanced_layouts_enable || is_version(440, 0); 222 } 223 has_explicit_attrib_stream_mesa_glsl_parse_state224 bool has_explicit_attrib_stream() const 225 { 226 return ARB_gpu_shader5_enable || is_version(400, 0); 227 } 228 has_explicit_attrib_location_mesa_glsl_parse_state229 bool has_explicit_attrib_location() const 230 { 231 return ARB_explicit_attrib_location_enable || is_version(330, 300); 232 } 233 has_explicit_uniform_location_mesa_glsl_parse_state234 bool has_explicit_uniform_location() const 235 { 236 return ARB_explicit_uniform_location_enable || is_version(430, 310); 237 } 238 has_uniform_buffer_objects_mesa_glsl_parse_state239 bool has_uniform_buffer_objects() const 240 { 241 return ARB_uniform_buffer_object_enable || is_version(140, 300); 242 } 243 has_shader_storage_buffer_objects_mesa_glsl_parse_state244 bool has_shader_storage_buffer_objects() const 245 { 246 return ARB_shader_storage_buffer_object_enable || is_version(430, 310); 247 } 248 has_separate_shader_objects_mesa_glsl_parse_state249 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 has_double_mesa_glsl_parse_state255 bool has_double() const 256 { 257 return ARB_gpu_shader_fp64_enable || is_version(400, 0); 258 } 259 has_int64_mesa_glsl_parse_state260 bool has_int64() const 261 { 262 return ARB_gpu_shader_int64_enable || 263 AMD_gpu_shader_int64_enable; 264 } 265 has_420pack_mesa_glsl_parse_state266 bool has_420pack() const 267 { 268 return ARB_shading_language_420pack_enable || is_version(420, 0); 269 } 270 has_420pack_or_es31_mesa_glsl_parse_state271 bool has_420pack_or_es31() const 272 { 273 return ARB_shading_language_420pack_enable || is_version(420, 310); 274 } 275 has_compute_shader_mesa_glsl_parse_state276 bool has_compute_shader() const 277 { 278 return ARB_compute_shader_enable || is_version(430, 310); 279 } 280 has_shader_io_blocks_mesa_glsl_parse_state281 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 has_geometry_shader_mesa_glsl_parse_state300 bool has_geometry_shader() const 301 { 302 return OES_geometry_shader_enable || EXT_geometry_shader_enable || 303 is_version(150, 320); 304 } 305 has_tessellation_shader_mesa_glsl_parse_state306 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 has_clip_distance_mesa_glsl_parse_state314 bool has_clip_distance() const 315 { 316 return EXT_clip_cull_distance_enable || is_version(130, 0); 317 } 318 has_cull_distance_mesa_glsl_parse_state319 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 has_framebuffer_fetch_mesa_glsl_parse_state326 bool has_framebuffer_fetch() const 327 { 328 return EXT_shader_framebuffer_fetch_enable || 329 EXT_shader_framebuffer_fetch_non_coherent_enable; 330 } 331 has_framebuffer_fetch_zs_mesa_glsl_parse_state332 bool has_framebuffer_fetch_zs() const 333 { 334 return ARM_shader_framebuffer_fetch_depth_stencil_enable; 335 } 336 has_texture_cube_map_array_mesa_glsl_parse_state337 bool has_texture_cube_map_array() const 338 { 339 return ARB_texture_cube_map_array_enable || 340 EXT_texture_cube_map_array_enable || 341 OES_texture_cube_map_array_enable || 342 is_version(400, 320); 343 } 344 has_shader_image_load_store_mesa_glsl_parse_state345 bool has_shader_image_load_store() const 346 { 347 return ARB_shader_image_load_store_enable || 348 EXT_shader_image_load_store_enable || 349 is_version(420, 310); 350 } 351 has_bindless_mesa_glsl_parse_state352 bool has_bindless() const 353 { 354 return ARB_bindless_texture_enable; 355 } 356 has_image_load_formatted_mesa_glsl_parse_state357 bool has_image_load_formatted() const 358 { 359 return EXT_shader_image_load_formatted_enable; 360 } 361 has_implicit_conversions_mesa_glsl_parse_state362 bool has_implicit_conversions() const 363 { 364 return EXT_shader_implicit_conversions_enable || 365 is_version(allow_glsl_120_subset_in_110 ? 110 : 120, 0); 366 } 367 has_implicit_int_to_uint_conversion_mesa_glsl_parse_state368 bool has_implicit_int_to_uint_conversion() const 369 { 370 return ARB_gpu_shader5_enable || 371 MESA_shader_integer_functions_enable || 372 EXT_shader_implicit_conversions_enable || 373 is_version(400, 0); 374 } 375 376 void set_valid_gl_and_glsl_versions(YYLTYPE *locp); 377 378 void process_version_directive(YYLTYPE *locp, int version, 379 const char *ident); 380 381 struct gl_context *const ctx; /* only to be used for debug callback. */ 382 const struct gl_extensions *exts; 383 const struct gl_constants *consts; 384 gl_api api; 385 void *scanner; 386 exec_list translation_unit; 387 glsl_symbol_table *symbols; 388 389 void *linalloc; 390 391 unsigned num_supported_versions; 392 struct { 393 unsigned ver; 394 uint8_t gl_ver; 395 bool es; 396 } supported_versions[17]; 397 398 bool es_shader; 399 bool compat_shader; 400 unsigned language_version; 401 unsigned forced_language_version; 402 /* Bitfield of ir_variable_mode to zero init */ 403 uint32_t zero_init; 404 unsigned gl_version; 405 gl_shader_stage stage; 406 407 /** 408 * Default uniform layout qualifiers tracked during parsing. 409 * Currently affects uniform blocks and uniform buffer variables in 410 * those blocks. 411 */ 412 struct ast_type_qualifier *default_uniform_qualifier; 413 414 /** 415 * Default shader storage layout qualifiers tracked during parsing. 416 * Currently affects shader storage blocks and shader storage buffer 417 * variables in those blocks. 418 */ 419 struct ast_type_qualifier *default_shader_storage_qualifier; 420 421 /** 422 * Variables to track different cases if a fragment shader redeclares 423 * built-in variable gl_FragCoord. 424 * 425 * Note: These values are computed at ast_to_hir time rather than at parse 426 * time. 427 */ 428 bool fs_redeclares_gl_fragcoord; 429 bool fs_origin_upper_left; 430 bool fs_pixel_center_integer; 431 bool fs_redeclares_gl_fragcoord_with_no_layout_qualifiers; 432 433 /** 434 * True if a geometry shader input primitive type or tessellation control 435 * output vertices were specified using a layout directive. 436 * 437 * Note: these values are computed at ast_to_hir time rather than at parse 438 * time. 439 */ 440 bool gs_input_prim_type_specified; 441 bool tcs_output_vertices_specified; 442 443 /** 444 * Input layout qualifiers from GLSL 1.50 (geometry shader controls), 445 * and GLSL 4.00 (tessellation evaluation shader) 446 */ 447 struct ast_type_qualifier *in_qualifier; 448 449 /** 450 * True if a compute shader input local size was specified using a layout 451 * directive. 452 * 453 * Note: this value is computed at ast_to_hir time rather than at parse 454 * time. 455 */ 456 bool cs_input_local_size_specified; 457 458 /** 459 * If cs_input_local_size_specified is true, the local size that was 460 * specified. Otherwise ignored. 461 */ 462 unsigned cs_input_local_size[3]; 463 464 /** 465 * True if a compute shader input local variable size was specified using 466 * a layout directive as specified by ARB_compute_variable_group_size. 467 */ 468 bool cs_input_local_size_variable_specified; 469 470 /** 471 * Arrangement of invocations used to calculate derivatives in a compute 472 * shader. From NV_compute_shader_derivatives. 473 */ 474 enum gl_derivative_group cs_derivative_group; 475 476 /** 477 * True if a shader declare bindless_sampler/bindless_image, and 478 * respectively bound_sampler/bound_image at global scope as specified by 479 * ARB_bindless_texture. 480 */ 481 bool bindless_sampler_specified; 482 bool bindless_image_specified; 483 bool bound_sampler_specified; 484 bool bound_image_specified; 485 486 /** 487 * Output layout qualifiers from GLSL 1.50 (geometry shader controls), 488 * and GLSL 4.00 (tessellation control shader). 489 */ 490 struct ast_type_qualifier *out_qualifier; 491 492 /** 493 * Printable list of GLSL versions supported by the current context 494 * 495 * \note 496 * This string should probably be generated per-context instead of per 497 * invokation of the compiler. This should be changed when the method of 498 * tracking supported GLSL versions changes. 499 */ 500 const char *supported_version_string; 501 502 /** 503 * Implementation defined limits that affect built-in variables, etc. 504 * 505 * \sa struct gl_constants (in mtypes.h) 506 */ 507 struct { 508 /* 1.10 */ 509 unsigned MaxLights; 510 unsigned MaxClipPlanes; 511 unsigned MaxTextureUnits; 512 unsigned MaxTextureCoords; 513 unsigned MaxVertexAttribs; 514 unsigned MaxVertexUniformComponents; 515 unsigned MaxVertexTextureImageUnits; 516 unsigned MaxCombinedTextureImageUnits; 517 unsigned MaxTextureImageUnits; 518 unsigned MaxFragmentUniformComponents; 519 520 /* ARB_draw_buffers */ 521 unsigned MaxDrawBuffers; 522 523 /* ARB_enhanced_layouts */ 524 unsigned MaxTransformFeedbackBuffers; 525 unsigned MaxTransformFeedbackInterleavedComponents; 526 527 /* ARB_blend_func_extended */ 528 unsigned MaxDualSourceDrawBuffers; 529 530 /* 3.00 ES */ 531 int MinProgramTexelOffset; 532 int MaxProgramTexelOffset; 533 534 /* 1.50 */ 535 unsigned MaxVertexOutputComponents; 536 unsigned MaxGeometryInputComponents; 537 unsigned MaxGeometryOutputComponents; 538 unsigned MaxGeometryShaderInvocations; 539 unsigned MaxFragmentInputComponents; 540 unsigned MaxGeometryTextureImageUnits; 541 unsigned MaxGeometryOutputVertices; 542 unsigned MaxGeometryTotalOutputComponents; 543 unsigned MaxGeometryUniformComponents; 544 545 /* ARB_shader_atomic_counters */ 546 unsigned MaxVertexAtomicCounters; 547 unsigned MaxTessControlAtomicCounters; 548 unsigned MaxTessEvaluationAtomicCounters; 549 unsigned MaxGeometryAtomicCounters; 550 unsigned MaxFragmentAtomicCounters; 551 unsigned MaxCombinedAtomicCounters; 552 unsigned MaxAtomicBufferBindings; 553 554 /* These are also atomic counter related, but they weren't added to 555 * until atomic counters were added to core in GLSL 4.20 and GLSL ES 556 * 3.10. 557 */ 558 unsigned MaxVertexAtomicCounterBuffers; 559 unsigned MaxTessControlAtomicCounterBuffers; 560 unsigned MaxTessEvaluationAtomicCounterBuffers; 561 unsigned MaxGeometryAtomicCounterBuffers; 562 unsigned MaxFragmentAtomicCounterBuffers; 563 unsigned MaxCombinedAtomicCounterBuffers; 564 unsigned MaxAtomicCounterBufferSize; 565 566 /* ARB_compute_shader */ 567 unsigned MaxComputeAtomicCounterBuffers; 568 unsigned MaxComputeAtomicCounters; 569 unsigned MaxComputeImageUniforms; 570 unsigned MaxComputeTextureImageUnits; 571 unsigned MaxComputeUniformComponents; 572 unsigned MaxComputeWorkGroupCount[3]; 573 unsigned MaxComputeWorkGroupSize[3]; 574 575 /* ARB_shader_image_load_store */ 576 unsigned MaxImageUnits; 577 unsigned MaxCombinedShaderOutputResources; 578 unsigned MaxImageSamples; 579 unsigned MaxVertexImageUniforms; 580 unsigned MaxTessControlImageUniforms; 581 unsigned MaxTessEvaluationImageUniforms; 582 unsigned MaxGeometryImageUniforms; 583 unsigned MaxFragmentImageUniforms; 584 unsigned MaxCombinedImageUniforms; 585 586 /* ARB_viewport_array */ 587 unsigned MaxViewports; 588 589 /* ARB_tessellation_shader */ 590 unsigned MaxPatchVertices; 591 unsigned MaxTessGenLevel; 592 unsigned MaxTessControlInputComponents; 593 unsigned MaxTessControlOutputComponents; 594 unsigned MaxTessControlTextureImageUnits; 595 unsigned MaxTessEvaluationInputComponents; 596 unsigned MaxTessEvaluationOutputComponents; 597 unsigned MaxTessEvaluationTextureImageUnits; 598 unsigned MaxTessPatchComponents; 599 unsigned MaxTessControlTotalOutputComponents; 600 unsigned MaxTessControlUniformComponents; 601 unsigned MaxTessEvaluationUniformComponents; 602 603 /* GL 4.5 / OES_sample_variables */ 604 unsigned MaxSamples; 605 } Const; 606 607 /** 608 * During AST to IR conversion, pointer to current IR function 609 * 610 * Will be \c NULL whenever the AST to IR conversion is not inside a 611 * function definition. 612 */ 613 class ir_function_signature *current_function; 614 615 /** 616 * During AST to IR conversion, pointer to the toplevel IR 617 * instruction list being generated. 618 */ 619 exec_list *toplevel_ir; 620 621 /** Have we found a return statement in this function? */ 622 bool found_return; 623 624 /** Have we found the interlock builtins in this function? */ 625 bool found_begin_interlock; 626 bool found_end_interlock; 627 628 /** Was there an error during compilation? */ 629 bool error; 630 631 /** 632 * Are all shader inputs / outputs invariant? 633 * 634 * This is set when the 'STDGL invariant(all)' pragma is used. 635 */ 636 bool all_invariant; 637 638 /** Loop or switch statement containing the current instructions. */ 639 class ast_iteration_statement *loop_nesting_ast; 640 641 struct glsl_switch_state switch_state; 642 643 /** List of structures defined in user code. */ 644 const glsl_type **user_structures; 645 unsigned num_user_structures; 646 647 char *info_log; 648 649 /** 650 * Are warnings enabled? 651 * 652 * Emission of warngins is controlled by '#pragma warning(...)'. 653 */ 654 bool warnings_enabled; 655 656 /** 657 * \name Enable bits for GLSL extensions 658 */ 659 /*@{*/ 660 /* ARB extensions go here, sorted alphabetically. 661 */ 662 bool ARB_ES3_1_compatibility_enable; 663 bool ARB_ES3_1_compatibility_warn; 664 bool ARB_ES3_2_compatibility_enable; 665 bool ARB_ES3_2_compatibility_warn; 666 bool ARB_arrays_of_arrays_enable; 667 bool ARB_arrays_of_arrays_warn; 668 bool ARB_bindless_texture_enable; 669 bool ARB_bindless_texture_warn; 670 bool ARB_compatibility_enable; 671 bool ARB_compatibility_warn; 672 bool ARB_compute_shader_enable; 673 bool ARB_compute_shader_warn; 674 bool ARB_compute_variable_group_size_enable; 675 bool ARB_compute_variable_group_size_warn; 676 bool ARB_conservative_depth_enable; 677 bool ARB_conservative_depth_warn; 678 bool ARB_cull_distance_enable; 679 bool ARB_cull_distance_warn; 680 bool ARB_derivative_control_enable; 681 bool ARB_derivative_control_warn; 682 bool ARB_draw_buffers_enable; 683 bool ARB_draw_buffers_warn; 684 bool ARB_draw_instanced_enable; 685 bool ARB_draw_instanced_warn; 686 bool ARB_enhanced_layouts_enable; 687 bool ARB_enhanced_layouts_warn; 688 bool ARB_explicit_attrib_location_enable; 689 bool ARB_explicit_attrib_location_warn; 690 bool ARB_explicit_uniform_location_enable; 691 bool ARB_explicit_uniform_location_warn; 692 bool ARB_fragment_coord_conventions_enable; 693 bool ARB_fragment_coord_conventions_warn; 694 bool ARB_fragment_layer_viewport_enable; 695 bool ARB_fragment_layer_viewport_warn; 696 bool ARB_fragment_shader_interlock_enable; 697 bool ARB_fragment_shader_interlock_warn; 698 bool ARB_gpu_shader5_enable; 699 bool ARB_gpu_shader5_warn; 700 bool ARB_gpu_shader_fp64_enable; 701 bool ARB_gpu_shader_fp64_warn; 702 bool ARB_gpu_shader_int64_enable; 703 bool ARB_gpu_shader_int64_warn; 704 bool ARB_post_depth_coverage_enable; 705 bool ARB_post_depth_coverage_warn; 706 bool ARB_sample_shading_enable; 707 bool ARB_sample_shading_warn; 708 bool ARB_separate_shader_objects_enable; 709 bool ARB_separate_shader_objects_warn; 710 bool ARB_shader_atomic_counter_ops_enable; 711 bool ARB_shader_atomic_counter_ops_warn; 712 bool ARB_shader_atomic_counters_enable; 713 bool ARB_shader_atomic_counters_warn; 714 bool ARB_shader_ballot_enable; 715 bool ARB_shader_ballot_warn; 716 bool ARB_shader_bit_encoding_enable; 717 bool ARB_shader_bit_encoding_warn; 718 bool ARB_shader_clock_enable; 719 bool ARB_shader_clock_warn; 720 bool ARB_shader_draw_parameters_enable; 721 bool ARB_shader_draw_parameters_warn; 722 bool ARB_shader_group_vote_enable; 723 bool ARB_shader_group_vote_warn; 724 bool ARB_shader_image_load_store_enable; 725 bool ARB_shader_image_load_store_warn; 726 bool ARB_shader_image_size_enable; 727 bool ARB_shader_image_size_warn; 728 bool ARB_shader_precision_enable; 729 bool ARB_shader_precision_warn; 730 bool ARB_shader_stencil_export_enable; 731 bool ARB_shader_stencil_export_warn; 732 bool ARB_shader_storage_buffer_object_enable; 733 bool ARB_shader_storage_buffer_object_warn; 734 bool ARB_shader_subroutine_enable; 735 bool ARB_shader_subroutine_warn; 736 bool ARB_shader_texture_image_samples_enable; 737 bool ARB_shader_texture_image_samples_warn; 738 bool ARB_shader_texture_lod_enable; 739 bool ARB_shader_texture_lod_warn; 740 bool ARB_shader_viewport_layer_array_enable; 741 bool ARB_shader_viewport_layer_array_warn; 742 bool ARB_shading_language_420pack_enable; 743 bool ARB_shading_language_420pack_warn; 744 bool ARB_shading_language_include_enable; 745 bool ARB_shading_language_include_warn; 746 bool ARB_shading_language_packing_enable; 747 bool ARB_shading_language_packing_warn; 748 bool ARB_sparse_texture2_enable; 749 bool ARB_sparse_texture2_warn; 750 bool ARB_sparse_texture_clamp_enable; 751 bool ARB_sparse_texture_clamp_warn; 752 bool ARB_tessellation_shader_enable; 753 bool ARB_tessellation_shader_warn; 754 bool ARB_texture_cube_map_array_enable; 755 bool ARB_texture_cube_map_array_warn; 756 bool ARB_texture_gather_enable; 757 bool ARB_texture_gather_warn; 758 bool ARB_texture_multisample_enable; 759 bool ARB_texture_multisample_warn; 760 bool ARB_texture_query_levels_enable; 761 bool ARB_texture_query_levels_warn; 762 bool ARB_texture_query_lod_enable; 763 bool ARB_texture_query_lod_warn; 764 bool ARB_texture_rectangle_enable; 765 bool ARB_texture_rectangle_warn; 766 bool ARB_uniform_buffer_object_enable; 767 bool ARB_uniform_buffer_object_warn; 768 bool ARB_vertex_attrib_64bit_enable; 769 bool ARB_vertex_attrib_64bit_warn; 770 bool ARB_viewport_array_enable; 771 bool ARB_viewport_array_warn; 772 773 /* KHR extensions go here, sorted alphabetically. 774 */ 775 bool KHR_blend_equation_advanced_enable; 776 bool KHR_blend_equation_advanced_warn; 777 778 /* OES extensions go here, sorted alphabetically. 779 */ 780 bool OES_EGL_image_external_enable; 781 bool OES_EGL_image_external_warn; 782 bool OES_EGL_image_external_essl3_enable; 783 bool OES_EGL_image_external_essl3_warn; 784 bool OES_geometry_point_size_enable; 785 bool OES_geometry_point_size_warn; 786 bool OES_geometry_shader_enable; 787 bool OES_geometry_shader_warn; 788 bool OES_gpu_shader5_enable; 789 bool OES_gpu_shader5_warn; 790 bool OES_primitive_bounding_box_enable; 791 bool OES_primitive_bounding_box_warn; 792 bool OES_sample_variables_enable; 793 bool OES_sample_variables_warn; 794 bool OES_shader_image_atomic_enable; 795 bool OES_shader_image_atomic_warn; 796 bool OES_shader_io_blocks_enable; 797 bool OES_shader_io_blocks_warn; 798 bool OES_shader_multisample_interpolation_enable; 799 bool OES_shader_multisample_interpolation_warn; 800 bool OES_standard_derivatives_enable; 801 bool OES_standard_derivatives_warn; 802 bool OES_tessellation_point_size_enable; 803 bool OES_tessellation_point_size_warn; 804 bool OES_tessellation_shader_enable; 805 bool OES_tessellation_shader_warn; 806 bool OES_texture_3D_enable; 807 bool OES_texture_3D_warn; 808 bool OES_texture_buffer_enable; 809 bool OES_texture_buffer_warn; 810 bool OES_texture_cube_map_array_enable; 811 bool OES_texture_cube_map_array_warn; 812 bool OES_texture_storage_multisample_2d_array_enable; 813 bool OES_texture_storage_multisample_2d_array_warn; 814 bool OES_viewport_array_enable; 815 bool OES_viewport_array_warn; 816 817 /* All other extensions go here, sorted alphabetically. 818 */ 819 bool AMD_conservative_depth_enable; 820 bool AMD_conservative_depth_warn; 821 bool AMD_gpu_shader_int64_enable; 822 bool AMD_gpu_shader_int64_warn; 823 bool AMD_shader_stencil_export_enable; 824 bool AMD_shader_stencil_export_warn; 825 bool AMD_shader_trinary_minmax_enable; 826 bool AMD_shader_trinary_minmax_warn; 827 bool AMD_texture_texture4_enable; 828 bool AMD_texture_texture4_warn; 829 bool AMD_vertex_shader_layer_enable; 830 bool AMD_vertex_shader_layer_warn; 831 bool AMD_vertex_shader_viewport_index_enable; 832 bool AMD_vertex_shader_viewport_index_warn; 833 bool ANDROID_extension_pack_es31a_enable; 834 bool ANDROID_extension_pack_es31a_warn; 835 bool ARM_shader_framebuffer_fetch_depth_stencil_enable; 836 bool ARM_shader_framebuffer_fetch_depth_stencil_warn; 837 bool EXT_blend_func_extended_enable; 838 bool EXT_blend_func_extended_warn; 839 bool EXT_clip_cull_distance_enable; 840 bool EXT_clip_cull_distance_warn; 841 bool EXT_demote_to_helper_invocation_enable; 842 bool EXT_demote_to_helper_invocation_warn; 843 bool EXT_draw_buffers_enable; 844 bool EXT_draw_buffers_warn; 845 bool EXT_draw_instanced_enable; 846 bool EXT_draw_instanced_warn; 847 bool EXT_frag_depth_enable; 848 bool EXT_frag_depth_warn; 849 bool EXT_geometry_point_size_enable; 850 bool EXT_geometry_point_size_warn; 851 bool EXT_geometry_shader_enable; 852 bool EXT_geometry_shader_warn; 853 bool EXT_gpu_shader4_enable; 854 bool EXT_gpu_shader4_warn; 855 bool EXT_gpu_shader5_enable; 856 bool EXT_gpu_shader5_warn; 857 bool EXT_primitive_bounding_box_enable; 858 bool EXT_primitive_bounding_box_warn; 859 bool EXT_separate_shader_objects_enable; 860 bool EXT_separate_shader_objects_warn; 861 bool EXT_shader_framebuffer_fetch_enable; 862 bool EXT_shader_framebuffer_fetch_warn; 863 bool EXT_shader_framebuffer_fetch_non_coherent_enable; 864 bool EXT_shader_framebuffer_fetch_non_coherent_warn; 865 bool EXT_shader_group_vote_enable; 866 bool EXT_shader_group_vote_warn; 867 bool EXT_shader_image_load_formatted_enable; 868 bool EXT_shader_image_load_formatted_warn; 869 bool EXT_shader_image_load_store_enable; 870 bool EXT_shader_image_load_store_warn; 871 bool EXT_shader_implicit_conversions_enable; 872 bool EXT_shader_implicit_conversions_warn; 873 bool EXT_shader_integer_mix_enable; 874 bool EXT_shader_integer_mix_warn; 875 bool EXT_shader_io_blocks_enable; 876 bool EXT_shader_io_blocks_warn; 877 bool EXT_shader_samples_identical_enable; 878 bool EXT_shader_samples_identical_warn; 879 bool EXT_tessellation_point_size_enable; 880 bool EXT_tessellation_point_size_warn; 881 bool EXT_tessellation_shader_enable; 882 bool EXT_tessellation_shader_warn; 883 bool EXT_texture_array_enable; 884 bool EXT_texture_array_warn; 885 bool EXT_texture_buffer_enable; 886 bool EXT_texture_buffer_warn; 887 bool EXT_texture_cube_map_array_enable; 888 bool EXT_texture_cube_map_array_warn; 889 bool EXT_texture_query_lod_enable; 890 bool EXT_texture_query_lod_warn; 891 bool EXT_texture_shadow_lod_enable; 892 bool EXT_texture_shadow_lod_warn; 893 bool INTEL_conservative_rasterization_enable; 894 bool INTEL_conservative_rasterization_warn; 895 bool INTEL_shader_atomic_float_minmax_enable; 896 bool INTEL_shader_atomic_float_minmax_warn; 897 bool INTEL_shader_integer_functions2_enable; 898 bool INTEL_shader_integer_functions2_warn; 899 bool MESA_shader_integer_functions_enable; 900 bool MESA_shader_integer_functions_warn; 901 bool NV_compute_shader_derivatives_enable; 902 bool NV_compute_shader_derivatives_warn; 903 bool NV_fragment_shader_interlock_enable; 904 bool NV_fragment_shader_interlock_warn; 905 bool NV_image_formats_enable; 906 bool NV_image_formats_warn; 907 bool NV_shader_atomic_float_enable; 908 bool NV_shader_atomic_float_warn; 909 bool NV_shader_atomic_int64_enable; 910 bool NV_shader_atomic_int64_warn; 911 bool NV_viewport_array2_enable; 912 bool NV_viewport_array2_warn; 913 /*@}*/ 914 915 /** Extensions supported by the OpenGL implementation. */ 916 const struct gl_extensions *extensions; 917 918 bool uses_builtin_functions; 919 bool fs_uses_gl_fragcoord; 920 921 /** 922 * For geometry shaders, size of the most recently seen input declaration 923 * that was a sized array, or 0 if no sized input array declarations have 924 * been seen. 925 * 926 * Unused for other shader types. 927 */ 928 unsigned gs_input_size; 929 930 bool fs_early_fragment_tests; 931 932 bool fs_inner_coverage; 933 934 bool fs_post_depth_coverage; 935 936 bool fs_pixel_interlock_ordered; 937 bool fs_pixel_interlock_unordered; 938 bool fs_sample_interlock_ordered; 939 bool fs_sample_interlock_unordered; 940 941 unsigned fs_blend_support; 942 943 /** 944 * For tessellation control shaders, size of the most recently seen output 945 * declaration that was a sized array, or 0 if no sized output array 946 * declarations have been seen. 947 * 948 * Unused for other shader types. 949 */ 950 unsigned tcs_output_size; 951 952 /** Atomic counter offsets by binding */ 953 unsigned atomic_counter_offsets[MAX_COMBINED_ATOMIC_BUFFERS]; 954 955 /** Whether gl_Layer output is viewport-relative. */ 956 bool redeclares_gl_layer; 957 bool layer_viewport_relative; 958 959 bool allow_extension_directive_midshader; 960 bool allow_glsl_120_subset_in_110; 961 bool allow_builtin_variable_redeclaration; 962 bool ignore_write_to_readonly_var; 963 964 /** 965 * Known subroutine type declarations. 966 */ 967 int num_subroutine_types; 968 ir_function **subroutine_types; 969 970 /** 971 * Functions that are associated with 972 * subroutine types. 973 */ 974 int num_subroutines; 975 ir_function **subroutines; 976 977 /** 978 * field selection temporary parser storage - 979 * did the parser just parse a dot. 980 */ 981 bool is_field; 982 983 /** 984 * seen values for clip/cull distance sizes 985 * so we can check totals aren't too large. 986 */ 987 unsigned clip_dist_size, cull_dist_size; 988 }; 989 990 # define YYLLOC_DEFAULT(Current, Rhs, N) \ 991 do { \ 992 if (N) \ 993 { \ 994 (Current).first_line = YYRHSLOC(Rhs, 1).first_line; \ 995 (Current).first_column = YYRHSLOC(Rhs, 1).first_column; \ 996 (Current).last_line = YYRHSLOC(Rhs, N).last_line; \ 997 (Current).last_column = YYRHSLOC(Rhs, N).last_column; \ 998 (Current).path = YYRHSLOC(Rhs, N).path; \ 999 } \ 1000 else \ 1001 { \ 1002 (Current).first_line = (Current).last_line = \ 1003 YYRHSLOC(Rhs, 0).last_line; \ 1004 (Current).first_column = (Current).last_column = \ 1005 YYRHSLOC(Rhs, 0).last_column; \ 1006 (Current).path = YYRHSLOC(Rhs, 0).path; \ 1007 } \ 1008 (Current).source = 0; \ 1009 } while (0) 1010 1011 /** 1012 * Emit a warning to the shader log 1013 * 1014 * \sa _mesa_glsl_error 1015 */ 1016 extern void _mesa_glsl_warning(const YYLTYPE *locp, 1017 _mesa_glsl_parse_state *state, 1018 const char *fmt, ...); 1019 1020 extern void _mesa_glsl_lexer_ctor(struct _mesa_glsl_parse_state *state, 1021 const char *string); 1022 1023 extern void _mesa_glsl_lexer_dtor(struct _mesa_glsl_parse_state *state); 1024 1025 union YYSTYPE; 1026 extern int _mesa_glsl_lexer_lex(union YYSTYPE *yylval, YYLTYPE *yylloc, 1027 void *scanner); 1028 1029 extern int _mesa_glsl_parse(struct _mesa_glsl_parse_state *); 1030 1031 /** 1032 * Process elements of the #extension directive 1033 * 1034 * \return 1035 * If \c name and \c behavior are valid, \c true is returned. Otherwise 1036 * \c false is returned. 1037 */ 1038 extern bool _mesa_glsl_process_extension(const char *name, YYLTYPE *name_locp, 1039 const char *behavior, 1040 YYLTYPE *behavior_locp, 1041 _mesa_glsl_parse_state *state); 1042 1043 #endif /* __cplusplus */ 1044 1045 1046 /* 1047 * These definitions apply to C and C++ 1048 */ 1049 #ifdef __cplusplus 1050 extern "C" { 1051 #endif 1052 1053 struct glcpp_parser; 1054 struct _mesa_glsl_parse_state; 1055 1056 typedef void (*glcpp_extension_iterator)( 1057 struct _mesa_glsl_parse_state *state, 1058 void (*add_builtin_define)(struct glcpp_parser *, const char *, int), 1059 struct glcpp_parser *data, 1060 unsigned version, 1061 bool es); 1062 1063 extern int glcpp_preprocess(void *ctx, const char **shader, char **info_log, 1064 glcpp_extension_iterator extensions, 1065 struct _mesa_glsl_parse_state *state, 1066 struct gl_context *gl_ctx); 1067 1068 extern void 1069 _mesa_glsl_copy_symbols_from_table(struct exec_list *shader_ir, 1070 struct glsl_symbol_table *src, 1071 struct glsl_symbol_table *dest); 1072 1073 #ifdef __cplusplus 1074 } 1075 #endif 1076 1077 1078 #endif /* GLSL_PARSER_EXTRAS_H */ 1079