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 #pragma once 25 #ifndef GLSL_PARSER_EXTRAS_H 26 #define GLSL_PARSER_EXTRAS_H 27 28 /* 29 * Most of the definitions here only apply to C++ 30 */ 31 #ifdef __cplusplus 32 33 34 #include <stdlib.h> 35 #include "glsl_symbol_table.h" 36 37 struct gl_context; 38 39 struct glsl_switch_state { 40 /** Temporary variables needed for switch statement. */ 41 ir_variable *test_var; 42 ir_variable *is_fallthru_var; 43 class ast_switch_statement *switch_nesting_ast; 44 45 /** Used to detect if 'continue' was called inside a switch. */ 46 ir_variable *continue_inside; 47 48 /** Used to set condition if 'default' label should be chosen. */ 49 ir_variable *run_default; 50 51 /** Table of constant values already used in case labels */ 52 struct hash_table *labels_ht; 53 class ast_case_label *previous_default; 54 55 bool is_switch_innermost; // if switch stmt is closest to break, ... 56 }; 57 58 const char * 59 glsl_compute_version_string(void *mem_ctx, bool is_es, unsigned version); 60 61 typedef struct YYLTYPE { 62 int first_line; 63 int first_column; 64 int last_line; 65 int last_column; 66 unsigned source; 67 } YYLTYPE; 68 # define YYLTYPE_IS_DECLARED 1 69 # define YYLTYPE_IS_TRIVIAL 1 70 71 extern void _mesa_glsl_error(YYLTYPE *locp, _mesa_glsl_parse_state *state, 72 const char *fmt, ...); 73 74 75 struct _mesa_glsl_parse_state { 76 _mesa_glsl_parse_state(struct gl_context *_ctx, gl_shader_stage stage, 77 void *mem_ctx); 78 79 DECLARE_RZALLOC_CXX_OPERATORS(_mesa_glsl_parse_state); 80 81 /** 82 * Generate a string representing the GLSL version currently being compiled 83 * (useful for error messages). 84 */ 85 const char *get_version_string() 86 { 87 return glsl_compute_version_string(this, this->es_shader, 88 this->language_version); 89 } 90 91 /** 92 * Determine whether the current GLSL version is sufficiently high to 93 * support a certain feature. 94 * 95 * \param required_glsl_version is the desktop GLSL version that is 96 * required to support the feature, or 0 if no version of desktop GLSL 97 * supports the feature. 98 * 99 * \param required_glsl_es_version is the GLSL ES version that is required 100 * to support the feature, or 0 if no version of GLSL ES supports the 101 * feature. 102 */ 103 bool is_version(unsigned required_glsl_version, 104 unsigned required_glsl_es_version) const 105 { 106 unsigned required_version = this->es_shader ? 107 required_glsl_es_version : required_glsl_version; 108 unsigned this_version = this->forced_language_version 109 ? this->forced_language_version : this->language_version; 110 return required_version != 0 111 && this_version >= required_version; 112 } 113 114 bool check_version(unsigned required_glsl_version, 115 unsigned required_glsl_es_version, 116 YYLTYPE *locp, const char *fmt, ...) PRINTFLIKE(5, 6); 117 118 bool check_arrays_of_arrays_allowed(YYLTYPE *locp) 119 { 120 if (!(ARB_arrays_of_arrays_enable || is_version(430, 310))) { 121 const char *const requirement = this->es_shader 122 ? "GLSL ES 3.10" 123 : "GL_ARB_arrays_of_arrays or GLSL 4.30"; 124 _mesa_glsl_error(locp, this, 125 "%s required for defining arrays of arrays.", 126 requirement); 127 return false; 128 } 129 return true; 130 } 131 132 bool check_precision_qualifiers_allowed(YYLTYPE *locp) 133 { 134 return check_version(130, 100, locp, 135 "precision qualifiers are forbidden"); 136 } 137 138 bool check_bitwise_operations_allowed(YYLTYPE *locp) 139 { 140 return check_version(130, 300, locp, "bit-wise operations are forbidden"); 141 } 142 143 bool check_explicit_attrib_stream_allowed(YYLTYPE *locp) 144 { 145 if (!this->has_explicit_attrib_stream()) { 146 const char *const requirement = "GL_ARB_gpu_shader5 extension or GLSL 4.00"; 147 148 _mesa_glsl_error(locp, this, "explicit stream requires %s", 149 requirement); 150 return false; 151 } 152 153 return true; 154 } 155 156 bool check_explicit_attrib_location_allowed(YYLTYPE *locp, 157 const ir_variable *var) 158 { 159 if (!this->has_explicit_attrib_location()) { 160 const char *const requirement = this->es_shader 161 ? "GLSL ES 3.00" 162 : "GL_ARB_explicit_attrib_location extension or GLSL 3.30"; 163 164 _mesa_glsl_error(locp, this, "%s explicit location requires %s", 165 mode_string(var), requirement); 166 return false; 167 } 168 169 return true; 170 } 171 172 bool check_separate_shader_objects_allowed(YYLTYPE *locp, 173 const ir_variable *var) 174 { 175 if (!this->has_separate_shader_objects()) { 176 const char *const requirement = this->es_shader 177 ? "GL_EXT_separate_shader_objects extension or GLSL ES 3.10" 178 : "GL_ARB_separate_shader_objects extension or GLSL 4.20"; 179 180 _mesa_glsl_error(locp, this, "%s explicit location requires %s", 181 mode_string(var), requirement); 182 return false; 183 } 184 185 return true; 186 } 187 188 bool check_explicit_uniform_location_allowed(YYLTYPE *locp, 189 const ir_variable *) 190 { 191 if (!this->has_explicit_attrib_location() || 192 !this->has_explicit_uniform_location()) { 193 const char *const requirement = this->es_shader 194 ? "GLSL ES 3.10" 195 : "GL_ARB_explicit_uniform_location and either " 196 "GL_ARB_explicit_attrib_location or GLSL 3.30."; 197 198 _mesa_glsl_error(locp, this, 199 "uniform explicit location requires %s", 200 requirement); 201 return false; 202 } 203 204 return true; 205 } 206 207 bool has_atomic_counters() const 208 { 209 return ARB_shader_atomic_counters_enable || is_version(420, 310); 210 } 211 212 bool has_enhanced_layouts() const 213 { 214 return ARB_enhanced_layouts_enable || is_version(440, 0); 215 } 216 217 bool has_explicit_attrib_stream() const 218 { 219 return ARB_gpu_shader5_enable || is_version(400, 0); 220 } 221 222 bool has_explicit_attrib_location() const 223 { 224 return ARB_explicit_attrib_location_enable || is_version(330, 300); 225 } 226 227 bool has_explicit_uniform_location() const 228 { 229 return ARB_explicit_uniform_location_enable || is_version(430, 310); 230 } 231 232 bool has_uniform_buffer_objects() const 233 { 234 return ARB_uniform_buffer_object_enable || is_version(140, 300); 235 } 236 237 bool has_shader_storage_buffer_objects() const 238 { 239 return ARB_shader_storage_buffer_object_enable || is_version(430, 310); 240 } 241 242 bool has_separate_shader_objects() const 243 { 244 return ARB_separate_shader_objects_enable || is_version(410, 310) 245 || EXT_separate_shader_objects_enable; 246 } 247 248 bool has_double() const 249 { 250 return ARB_gpu_shader_fp64_enable || is_version(400, 0); 251 } 252 253 bool has_420pack() const 254 { 255 return ARB_shading_language_420pack_enable || is_version(420, 0); 256 } 257 258 bool has_420pack_or_es31() const 259 { 260 return ARB_shading_language_420pack_enable || is_version(420, 310); 261 } 262 263 bool has_compute_shader() const 264 { 265 return ARB_compute_shader_enable || is_version(430, 310); 266 } 267 268 bool has_shader_io_blocks() const 269 { 270 /* The OES_geometry_shader_specification says: 271 * 272 * "If the OES_geometry_shader extension is enabled, the 273 * OES_shader_io_blocks extension is also implicitly enabled." 274 * 275 * The OES_tessellation_shader extension has similar wording. 276 */ 277 return OES_shader_io_blocks_enable || 278 EXT_shader_io_blocks_enable || 279 OES_geometry_shader_enable || 280 EXT_geometry_shader_enable || 281 OES_tessellation_shader_enable || 282 EXT_tessellation_shader_enable || 283 284 is_version(150, 320); 285 } 286 287 bool has_geometry_shader() const 288 { 289 return OES_geometry_shader_enable || EXT_geometry_shader_enable || 290 is_version(150, 320); 291 } 292 293 bool has_tessellation_shader() const 294 { 295 return ARB_tessellation_shader_enable || 296 OES_tessellation_shader_enable || 297 EXT_tessellation_shader_enable || 298 is_version(400, 320); 299 } 300 301 bool has_clip_distance() const 302 { 303 return EXT_clip_cull_distance_enable || is_version(130, 0); 304 } 305 306 bool has_cull_distance() const 307 { 308 return EXT_clip_cull_distance_enable || 309 ARB_cull_distance_enable || 310 is_version(450, 0); 311 } 312 313 bool has_framebuffer_fetch() const 314 { 315 return EXT_shader_framebuffer_fetch_enable || 316 MESA_shader_framebuffer_fetch_enable || 317 MESA_shader_framebuffer_fetch_non_coherent_enable; 318 } 319 320 bool has_texture_cube_map_array() const 321 { 322 return ARB_texture_cube_map_array_enable || 323 EXT_texture_cube_map_array_enable || 324 OES_texture_cube_map_array_enable || 325 is_version(400, 320); 326 } 327 328 void process_version_directive(YYLTYPE *locp, int version, 329 const char *ident); 330 331 struct gl_context *const ctx; 332 void *scanner; 333 exec_list translation_unit; 334 glsl_symbol_table *symbols; 335 336 void *linalloc; 337 338 unsigned num_supported_versions; 339 struct { 340 unsigned ver; 341 uint8_t gl_ver; 342 bool es; 343 } supported_versions[16]; 344 345 bool es_shader; 346 unsigned language_version; 347 unsigned forced_language_version; 348 bool zero_init; 349 unsigned gl_version; 350 gl_shader_stage stage; 351 352 /** 353 * Default uniform layout qualifiers tracked during parsing. 354 * Currently affects uniform blocks and uniform buffer variables in 355 * those blocks. 356 */ 357 struct ast_type_qualifier *default_uniform_qualifier; 358 359 /** 360 * Default shader storage layout qualifiers tracked during parsing. 361 * Currently affects shader storage blocks and shader storage buffer 362 * variables in those blocks. 363 */ 364 struct ast_type_qualifier *default_shader_storage_qualifier; 365 366 /** 367 * Variables to track different cases if a fragment shader redeclares 368 * built-in variable gl_FragCoord. 369 * 370 * Note: These values are computed at ast_to_hir time rather than at parse 371 * time. 372 */ 373 bool fs_redeclares_gl_fragcoord; 374 bool fs_origin_upper_left; 375 bool fs_pixel_center_integer; 376 bool fs_redeclares_gl_fragcoord_with_no_layout_qualifiers; 377 378 /** 379 * True if a geometry shader input primitive type or tessellation control 380 * output vertices were specified using a layout directive. 381 * 382 * Note: these values are computed at ast_to_hir time rather than at parse 383 * time. 384 */ 385 bool gs_input_prim_type_specified; 386 bool tcs_output_vertices_specified; 387 388 /** 389 * Input layout qualifiers from GLSL 1.50 (geometry shader controls), 390 * and GLSL 4.00 (tessellation evaluation shader) 391 */ 392 struct ast_type_qualifier *in_qualifier; 393 394 /** 395 * True if a compute shader input local size was specified using a layout 396 * directive. 397 * 398 * Note: this value is computed at ast_to_hir time rather than at parse 399 * time. 400 */ 401 bool cs_input_local_size_specified; 402 403 /** 404 * If cs_input_local_size_specified is true, the local size that was 405 * specified. Otherwise ignored. 406 */ 407 unsigned cs_input_local_size[3]; 408 409 /** 410 * True if a compute shader input local variable size was specified using 411 * a layout directive as specified by ARB_compute_variable_group_size. 412 */ 413 bool cs_input_local_size_variable_specified; 414 415 /** 416 * Output layout qualifiers from GLSL 1.50 (geometry shader controls), 417 * and GLSL 4.00 (tessellation control shader). 418 */ 419 struct ast_type_qualifier *out_qualifier; 420 421 /** 422 * Printable list of GLSL versions supported by the current context 423 * 424 * \note 425 * This string should probably be generated per-context instead of per 426 * invokation of the compiler. This should be changed when the method of 427 * tracking supported GLSL versions changes. 428 */ 429 const char *supported_version_string; 430 431 /** 432 * Implementation defined limits that affect built-in variables, etc. 433 * 434 * \sa struct gl_constants (in mtypes.h) 435 */ 436 struct { 437 /* 1.10 */ 438 unsigned MaxLights; 439 unsigned MaxClipPlanes; 440 unsigned MaxTextureUnits; 441 unsigned MaxTextureCoords; 442 unsigned MaxVertexAttribs; 443 unsigned MaxVertexUniformComponents; 444 unsigned MaxVertexTextureImageUnits; 445 unsigned MaxCombinedTextureImageUnits; 446 unsigned MaxTextureImageUnits; 447 unsigned MaxFragmentUniformComponents; 448 449 /* ARB_draw_buffers */ 450 unsigned MaxDrawBuffers; 451 452 /* ARB_enhanced_layouts */ 453 unsigned MaxTransformFeedbackBuffers; 454 unsigned MaxTransformFeedbackInterleavedComponents; 455 456 /* ARB_blend_func_extended */ 457 unsigned MaxDualSourceDrawBuffers; 458 459 /* 3.00 ES */ 460 int MinProgramTexelOffset; 461 int MaxProgramTexelOffset; 462 463 /* 1.50 */ 464 unsigned MaxVertexOutputComponents; 465 unsigned MaxGeometryInputComponents; 466 unsigned MaxGeometryOutputComponents; 467 unsigned MaxFragmentInputComponents; 468 unsigned MaxGeometryTextureImageUnits; 469 unsigned MaxGeometryOutputVertices; 470 unsigned MaxGeometryTotalOutputComponents; 471 unsigned MaxGeometryUniformComponents; 472 473 /* ARB_shader_atomic_counters */ 474 unsigned MaxVertexAtomicCounters; 475 unsigned MaxTessControlAtomicCounters; 476 unsigned MaxTessEvaluationAtomicCounters; 477 unsigned MaxGeometryAtomicCounters; 478 unsigned MaxFragmentAtomicCounters; 479 unsigned MaxCombinedAtomicCounters; 480 unsigned MaxAtomicBufferBindings; 481 482 /* These are also atomic counter related, but they weren't added to 483 * until atomic counters were added to core in GLSL 4.20 and GLSL ES 484 * 3.10. 485 */ 486 unsigned MaxVertexAtomicCounterBuffers; 487 unsigned MaxTessControlAtomicCounterBuffers; 488 unsigned MaxTessEvaluationAtomicCounterBuffers; 489 unsigned MaxGeometryAtomicCounterBuffers; 490 unsigned MaxFragmentAtomicCounterBuffers; 491 unsigned MaxCombinedAtomicCounterBuffers; 492 unsigned MaxAtomicCounterBufferSize; 493 494 /* ARB_compute_shader */ 495 unsigned MaxComputeAtomicCounterBuffers; 496 unsigned MaxComputeAtomicCounters; 497 unsigned MaxComputeImageUniforms; 498 unsigned MaxComputeTextureImageUnits; 499 unsigned MaxComputeUniformComponents; 500 unsigned MaxComputeWorkGroupCount[3]; 501 unsigned MaxComputeWorkGroupSize[3]; 502 503 /* ARB_shader_image_load_store */ 504 unsigned MaxImageUnits; 505 unsigned MaxCombinedShaderOutputResources; 506 unsigned MaxImageSamples; 507 unsigned MaxVertexImageUniforms; 508 unsigned MaxTessControlImageUniforms; 509 unsigned MaxTessEvaluationImageUniforms; 510 unsigned MaxGeometryImageUniforms; 511 unsigned MaxFragmentImageUniforms; 512 unsigned MaxCombinedImageUniforms; 513 514 /* ARB_viewport_array */ 515 unsigned MaxViewports; 516 517 /* ARB_tessellation_shader */ 518 unsigned MaxPatchVertices; 519 unsigned MaxTessGenLevel; 520 unsigned MaxTessControlInputComponents; 521 unsigned MaxTessControlOutputComponents; 522 unsigned MaxTessControlTextureImageUnits; 523 unsigned MaxTessEvaluationInputComponents; 524 unsigned MaxTessEvaluationOutputComponents; 525 unsigned MaxTessEvaluationTextureImageUnits; 526 unsigned MaxTessPatchComponents; 527 unsigned MaxTessControlTotalOutputComponents; 528 unsigned MaxTessControlUniformComponents; 529 unsigned MaxTessEvaluationUniformComponents; 530 531 /* GL 4.5 / OES_sample_variables */ 532 unsigned MaxSamples; 533 } Const; 534 535 /** 536 * During AST to IR conversion, pointer to current IR function 537 * 538 * Will be \c NULL whenever the AST to IR conversion is not inside a 539 * function definition. 540 */ 541 class ir_function_signature *current_function; 542 543 /** 544 * During AST to IR conversion, pointer to the toplevel IR 545 * instruction list being generated. 546 */ 547 exec_list *toplevel_ir; 548 549 /** Have we found a return statement in this function? */ 550 bool found_return; 551 552 /** Was there an error during compilation? */ 553 bool error; 554 555 /** 556 * Are all shader inputs / outputs invariant? 557 * 558 * This is set when the 'STDGL invariant(all)' pragma is used. 559 */ 560 bool all_invariant; 561 562 /** Loop or switch statement containing the current instructions. */ 563 class ast_iteration_statement *loop_nesting_ast; 564 565 struct glsl_switch_state switch_state; 566 567 /** List of structures defined in user code. */ 568 const glsl_type **user_structures; 569 unsigned num_user_structures; 570 571 char *info_log; 572 573 /** 574 * \name Enable bits for GLSL extensions 575 */ 576 /*@{*/ 577 /* ARB extensions go here, sorted alphabetically. 578 */ 579 bool ARB_ES3_1_compatibility_enable; 580 bool ARB_ES3_1_compatibility_warn; 581 bool ARB_ES3_2_compatibility_enable; 582 bool ARB_ES3_2_compatibility_warn; 583 bool ARB_arrays_of_arrays_enable; 584 bool ARB_arrays_of_arrays_warn; 585 bool ARB_compute_shader_enable; 586 bool ARB_compute_shader_warn; 587 bool ARB_compute_variable_group_size_enable; 588 bool ARB_compute_variable_group_size_warn; 589 bool ARB_conservative_depth_enable; 590 bool ARB_conservative_depth_warn; 591 bool ARB_cull_distance_enable; 592 bool ARB_cull_distance_warn; 593 bool ARB_derivative_control_enable; 594 bool ARB_derivative_control_warn; 595 bool ARB_draw_buffers_enable; 596 bool ARB_draw_buffers_warn; 597 bool ARB_draw_instanced_enable; 598 bool ARB_draw_instanced_warn; 599 bool ARB_enhanced_layouts_enable; 600 bool ARB_enhanced_layouts_warn; 601 bool ARB_explicit_attrib_location_enable; 602 bool ARB_explicit_attrib_location_warn; 603 bool ARB_explicit_uniform_location_enable; 604 bool ARB_explicit_uniform_location_warn; 605 bool ARB_fragment_coord_conventions_enable; 606 bool ARB_fragment_coord_conventions_warn; 607 bool ARB_fragment_layer_viewport_enable; 608 bool ARB_fragment_layer_viewport_warn; 609 bool ARB_gpu_shader5_enable; 610 bool ARB_gpu_shader5_warn; 611 bool ARB_gpu_shader_fp64_enable; 612 bool ARB_gpu_shader_fp64_warn; 613 bool ARB_post_depth_coverage_enable; 614 bool ARB_post_depth_coverage_warn; 615 bool ARB_sample_shading_enable; 616 bool ARB_sample_shading_warn; 617 bool ARB_separate_shader_objects_enable; 618 bool ARB_separate_shader_objects_warn; 619 bool ARB_shader_atomic_counter_ops_enable; 620 bool ARB_shader_atomic_counter_ops_warn; 621 bool ARB_shader_atomic_counters_enable; 622 bool ARB_shader_atomic_counters_warn; 623 bool ARB_shader_bit_encoding_enable; 624 bool ARB_shader_bit_encoding_warn; 625 bool ARB_shader_clock_enable; 626 bool ARB_shader_clock_warn; 627 bool ARB_shader_draw_parameters_enable; 628 bool ARB_shader_draw_parameters_warn; 629 bool ARB_shader_group_vote_enable; 630 bool ARB_shader_group_vote_warn; 631 bool ARB_shader_image_load_store_enable; 632 bool ARB_shader_image_load_store_warn; 633 bool ARB_shader_image_size_enable; 634 bool ARB_shader_image_size_warn; 635 bool ARB_shader_precision_enable; 636 bool ARB_shader_precision_warn; 637 bool ARB_shader_stencil_export_enable; 638 bool ARB_shader_stencil_export_warn; 639 bool ARB_shader_storage_buffer_object_enable; 640 bool ARB_shader_storage_buffer_object_warn; 641 bool ARB_shader_subroutine_enable; 642 bool ARB_shader_subroutine_warn; 643 bool ARB_shader_texture_image_samples_enable; 644 bool ARB_shader_texture_image_samples_warn; 645 bool ARB_shader_texture_lod_enable; 646 bool ARB_shader_texture_lod_warn; 647 bool ARB_shader_viewport_layer_array_enable; 648 bool ARB_shader_viewport_layer_array_warn; 649 bool ARB_shading_language_420pack_enable; 650 bool ARB_shading_language_420pack_warn; 651 bool ARB_shading_language_packing_enable; 652 bool ARB_shading_language_packing_warn; 653 bool ARB_tessellation_shader_enable; 654 bool ARB_tessellation_shader_warn; 655 bool ARB_texture_cube_map_array_enable; 656 bool ARB_texture_cube_map_array_warn; 657 bool ARB_texture_gather_enable; 658 bool ARB_texture_gather_warn; 659 bool ARB_texture_multisample_enable; 660 bool ARB_texture_multisample_warn; 661 bool ARB_texture_query_levels_enable; 662 bool ARB_texture_query_levels_warn; 663 bool ARB_texture_query_lod_enable; 664 bool ARB_texture_query_lod_warn; 665 bool ARB_texture_rectangle_enable; 666 bool ARB_texture_rectangle_warn; 667 bool ARB_uniform_buffer_object_enable; 668 bool ARB_uniform_buffer_object_warn; 669 bool ARB_vertex_attrib_64bit_enable; 670 bool ARB_vertex_attrib_64bit_warn; 671 bool ARB_viewport_array_enable; 672 bool ARB_viewport_array_warn; 673 674 /* KHR extensions go here, sorted alphabetically. 675 */ 676 bool KHR_blend_equation_advanced_enable; 677 bool KHR_blend_equation_advanced_warn; 678 679 /* OES extensions go here, sorted alphabetically. 680 */ 681 bool OES_EGL_image_external_enable; 682 bool OES_EGL_image_external_warn; 683 bool OES_geometry_point_size_enable; 684 bool OES_geometry_point_size_warn; 685 bool OES_geometry_shader_enable; 686 bool OES_geometry_shader_warn; 687 bool OES_gpu_shader5_enable; 688 bool OES_gpu_shader5_warn; 689 bool OES_primitive_bounding_box_enable; 690 bool OES_primitive_bounding_box_warn; 691 bool OES_sample_variables_enable; 692 bool OES_sample_variables_warn; 693 bool OES_shader_image_atomic_enable; 694 bool OES_shader_image_atomic_warn; 695 bool OES_shader_io_blocks_enable; 696 bool OES_shader_io_blocks_warn; 697 bool OES_shader_multisample_interpolation_enable; 698 bool OES_shader_multisample_interpolation_warn; 699 bool OES_standard_derivatives_enable; 700 bool OES_standard_derivatives_warn; 701 bool OES_tessellation_point_size_enable; 702 bool OES_tessellation_point_size_warn; 703 bool OES_tessellation_shader_enable; 704 bool OES_tessellation_shader_warn; 705 bool OES_texture_3D_enable; 706 bool OES_texture_3D_warn; 707 bool OES_texture_buffer_enable; 708 bool OES_texture_buffer_warn; 709 bool OES_texture_cube_map_array_enable; 710 bool OES_texture_cube_map_array_warn; 711 bool OES_texture_storage_multisample_2d_array_enable; 712 bool OES_texture_storage_multisample_2d_array_warn; 713 bool OES_viewport_array_enable; 714 bool OES_viewport_array_warn; 715 716 /* All other extensions go here, sorted alphabetically. 717 */ 718 bool AMD_conservative_depth_enable; 719 bool AMD_conservative_depth_warn; 720 bool AMD_shader_stencil_export_enable; 721 bool AMD_shader_stencil_export_warn; 722 bool AMD_shader_trinary_minmax_enable; 723 bool AMD_shader_trinary_minmax_warn; 724 bool AMD_vertex_shader_layer_enable; 725 bool AMD_vertex_shader_layer_warn; 726 bool AMD_vertex_shader_viewport_index_enable; 727 bool AMD_vertex_shader_viewport_index_warn; 728 bool ANDROID_extension_pack_es31a_enable; 729 bool ANDROID_extension_pack_es31a_warn; 730 bool EXT_blend_func_extended_enable; 731 bool EXT_blend_func_extended_warn; 732 bool EXT_clip_cull_distance_enable; 733 bool EXT_clip_cull_distance_warn; 734 bool EXT_draw_buffers_enable; 735 bool EXT_draw_buffers_warn; 736 bool EXT_geometry_point_size_enable; 737 bool EXT_geometry_point_size_warn; 738 bool EXT_geometry_shader_enable; 739 bool EXT_geometry_shader_warn; 740 bool EXT_gpu_shader5_enable; 741 bool EXT_gpu_shader5_warn; 742 bool EXT_primitive_bounding_box_enable; 743 bool EXT_primitive_bounding_box_warn; 744 bool EXT_separate_shader_objects_enable; 745 bool EXT_separate_shader_objects_warn; 746 bool EXT_shader_framebuffer_fetch_enable; 747 bool EXT_shader_framebuffer_fetch_warn; 748 bool EXT_shader_integer_mix_enable; 749 bool EXT_shader_integer_mix_warn; 750 bool EXT_shader_io_blocks_enable; 751 bool EXT_shader_io_blocks_warn; 752 bool EXT_shader_samples_identical_enable; 753 bool EXT_shader_samples_identical_warn; 754 bool EXT_tessellation_point_size_enable; 755 bool EXT_tessellation_point_size_warn; 756 bool EXT_tessellation_shader_enable; 757 bool EXT_tessellation_shader_warn; 758 bool EXT_texture_array_enable; 759 bool EXT_texture_array_warn; 760 bool EXT_texture_buffer_enable; 761 bool EXT_texture_buffer_warn; 762 bool EXT_texture_cube_map_array_enable; 763 bool EXT_texture_cube_map_array_warn; 764 bool INTEL_conservative_rasterization_enable; 765 bool INTEL_conservative_rasterization_warn; 766 bool MESA_shader_framebuffer_fetch_enable; 767 bool MESA_shader_framebuffer_fetch_warn; 768 bool MESA_shader_framebuffer_fetch_non_coherent_enable; 769 bool MESA_shader_framebuffer_fetch_non_coherent_warn; 770 bool MESA_shader_integer_functions_enable; 771 bool MESA_shader_integer_functions_warn; 772 bool NV_image_formats_enable; 773 bool NV_image_formats_warn; 774 /*@}*/ 775 776 /** Extensions supported by the OpenGL implementation. */ 777 const struct gl_extensions *extensions; 778 779 bool uses_builtin_functions; 780 bool fs_uses_gl_fragcoord; 781 782 /** 783 * For geometry shaders, size of the most recently seen input declaration 784 * that was a sized array, or 0 if no sized input array declarations have 785 * been seen. 786 * 787 * Unused for other shader types. 788 */ 789 unsigned gs_input_size; 790 791 bool fs_early_fragment_tests; 792 793 bool fs_inner_coverage; 794 795 bool fs_post_depth_coverage; 796 797 unsigned fs_blend_support; 798 799 /** 800 * For tessellation control shaders, size of the most recently seen output 801 * declaration that was a sized array, or 0 if no sized output array 802 * declarations have been seen. 803 * 804 * Unused for other shader types. 805 */ 806 unsigned tcs_output_size; 807 808 /** Atomic counter offsets by binding */ 809 unsigned atomic_counter_offsets[MAX_COMBINED_ATOMIC_BUFFERS]; 810 811 bool allow_extension_directive_midshader; 812 813 /** 814 * Known subroutine type declarations. 815 */ 816 int num_subroutine_types; 817 ir_function **subroutine_types; 818 819 /** 820 * Functions that are associated with 821 * subroutine types. 822 */ 823 int num_subroutines; 824 ir_function **subroutines; 825 826 /** 827 * field selection temporary parser storage - 828 * did the parser just parse a dot. 829 */ 830 bool is_field; 831 832 /** 833 * seen values for clip/cull distance sizes 834 * so we can check totals aren't too large. 835 */ 836 unsigned clip_dist_size, cull_dist_size; 837 }; 838 839 # define YYLLOC_DEFAULT(Current, Rhs, N) \ 840 do { \ 841 if (N) \ 842 { \ 843 (Current).first_line = YYRHSLOC(Rhs, 1).first_line; \ 844 (Current).first_column = YYRHSLOC(Rhs, 1).first_column; \ 845 (Current).last_line = YYRHSLOC(Rhs, N).last_line; \ 846 (Current).last_column = YYRHSLOC(Rhs, N).last_column; \ 847 } \ 848 else \ 849 { \ 850 (Current).first_line = (Current).last_line = \ 851 YYRHSLOC(Rhs, 0).last_line; \ 852 (Current).first_column = (Current).last_column = \ 853 YYRHSLOC(Rhs, 0).last_column; \ 854 } \ 855 (Current).source = 0; \ 856 } while (0) 857 858 /** 859 * Emit a warning to the shader log 860 * 861 * \sa _mesa_glsl_error 862 */ 863 extern void _mesa_glsl_warning(const YYLTYPE *locp, 864 _mesa_glsl_parse_state *state, 865 const char *fmt, ...); 866 867 extern void _mesa_glsl_lexer_ctor(struct _mesa_glsl_parse_state *state, 868 const char *string); 869 870 extern void _mesa_glsl_lexer_dtor(struct _mesa_glsl_parse_state *state); 871 872 union YYSTYPE; 873 extern int _mesa_glsl_lexer_lex(union YYSTYPE *yylval, YYLTYPE *yylloc, 874 void *scanner); 875 876 extern int _mesa_glsl_parse(struct _mesa_glsl_parse_state *); 877 878 /** 879 * Process elements of the #extension directive 880 * 881 * \return 882 * If \c name and \c behavior are valid, \c true is returned. Otherwise 883 * \c false is returned. 884 */ 885 extern bool _mesa_glsl_process_extension(const char *name, YYLTYPE *name_locp, 886 const char *behavior, 887 YYLTYPE *behavior_locp, 888 _mesa_glsl_parse_state *state); 889 890 #endif /* __cplusplus */ 891 892 893 /* 894 * These definitions apply to C and C++ 895 */ 896 #ifdef __cplusplus 897 extern "C" { 898 #endif 899 900 struct glcpp_parser; 901 902 typedef void (*glcpp_extension_iterator)( 903 struct _mesa_glsl_parse_state *state, 904 void (*add_builtin_define)(struct glcpp_parser *, const char *, int), 905 struct glcpp_parser *data, 906 unsigned version, 907 bool es); 908 909 extern int glcpp_preprocess(void *ctx, const char **shader, char **info_log, 910 glcpp_extension_iterator extensions, 911 struct _mesa_glsl_parse_state *state, 912 struct gl_context *gl_ctx); 913 914 extern void _mesa_destroy_shader_compiler(void); 915 extern void _mesa_destroy_shader_compiler_caches(void); 916 917 #ifdef __cplusplus 918 } 919 #endif 920 921 922 #endif /* GLSL_PARSER_EXTRAS_H */ 923
