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