1/* 2 * Mesa 3-D graphics library 3 * 4 * Copyright (C) 2010 VMware, Inc. All Rights Reserved. 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a 7 * copy of this software and associated documentation files (the "Software"), 8 * to deal in the Software without restriction, including without limitation 9 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 10 * and/or sell copies of the Software, and to permit persons to whom the 11 * Software is furnished to do so, subject to the following conditions: 12 * 13 * The above copyright notice and this permission notice shall be included 14 * in all copies or substantial portions of the Software. 15 * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 17 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR 20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 22 * OTHER DEALINGS IN THE SOFTWARE. 23 */ 24 25 26#include <stdio.h> 27#include "context.h" 28#include "imports.h" 29#include "mtypes.h" 30#include "version.h" 31#include "git_sha1.h" 32 33/** 34 * Scans 'string' to see if it ends with 'ending'. 35 */ 36static bool 37check_for_ending(const char *string, const char *ending) 38{ 39 const size_t len1 = strlen(string); 40 const size_t len2 = strlen(ending); 41 42 if (len2 > len1) 43 return false; 44 45 return strcmp(string + (len1 - len2), ending) == 0; 46} 47 48/** 49 * Returns the gl override data 50 * 51 * version > 0 indicates there is an override requested 52 * fwd_context is only valid if version > 0 53 */ 54static void 55get_gl_override(gl_api api, int *version, bool *fwd_context, 56 bool *compat_context) 57{ 58 const char *env_var = (api == API_OPENGL_CORE || api == API_OPENGL_COMPAT) 59 ? "MESA_GL_VERSION_OVERRIDE" : "MESA_GLES_VERSION_OVERRIDE"; 60 const char *version_str; 61 int major, minor, n; 62 static struct override_info { 63 int version; 64 bool fc_suffix; 65 bool compat_suffix; 66 } override[] = { 67 [API_OPENGL_COMPAT] = { -1, false, false}, 68 [API_OPENGLES] = { -1, false, false}, 69 [API_OPENGLES2] = { -1, false, false}, 70 [API_OPENGL_CORE] = { -1, false, false}, 71 }; 72 73 STATIC_ASSERT(ARRAY_SIZE(override) == API_OPENGL_LAST + 1); 74 75 if (api == API_OPENGLES) 76 goto exit; 77 78 if (override[api].version < 0) { 79 override[api].version = 0; 80 81 version_str = getenv(env_var); 82 if (version_str) { 83 override[api].fc_suffix = check_for_ending(version_str, "FC"); 84 override[api].compat_suffix = check_for_ending(version_str, "COMPAT"); 85 86 n = sscanf(version_str, "%u.%u", &major, &minor); 87 if (n != 2) { 88 fprintf(stderr, "error: invalid value for %s: %s\n", 89 env_var, version_str); 90 override[api].version = 0; 91 } else { 92 override[api].version = major * 10 + minor; 93 94 /* There is no such thing as compatibility or forward-compatible for 95 * OpenGL ES 2.0 or 3.x APIs. 96 */ 97 if ((override[api].version < 30 && override[api].fc_suffix) || 98 (api == API_OPENGLES2 && (override[api].fc_suffix || 99 override[api].compat_suffix))) { 100 fprintf(stderr, "error: invalid value for %s: %s\n", 101 env_var, version_str); 102 } 103 } 104 } 105 } 106 107exit: 108 *version = override[api].version; 109 *fwd_context = override[api].fc_suffix; 110 *compat_context = override[api].compat_suffix; 111} 112 113/** 114 * Builds the Mesa version string. 115 */ 116static void 117create_version_string(struct gl_context *ctx, const char *prefix) 118{ 119 static const int max = 100; 120 121 ctx->VersionString = malloc(max); 122 if (ctx->VersionString) { 123 _mesa_snprintf(ctx->VersionString, max, 124 "%s%u.%u%s Mesa " PACKAGE_VERSION MESA_GIT_SHA1, 125 prefix, 126 ctx->Version / 10, ctx->Version % 10, 127 (ctx->API == API_OPENGL_CORE) ? " (Core Profile)" : 128 (ctx->API == API_OPENGL_COMPAT && ctx->Version >= 32) ? 129 " (Compatibility Profile)" : "" 130 ); 131 } 132} 133 134/** 135 * Override the context's version and/or API type if the environment variables 136 * MESA_GL_VERSION_OVERRIDE or MESA_GLES_VERSION_OVERRIDE are set. 137 * 138 * Example uses of MESA_GL_VERSION_OVERRIDE: 139 * 140 * 2.1: select a compatibility (non-Core) profile with GL version 2.1. 141 * 3.0: select a compatibility (non-Core) profile with GL version 3.0. 142 * 3.0FC: select a Core+Forward Compatible profile with GL version 3.0. 143 * 3.1: select GL version 3.1 with GL_ARB_compatibility enabled per the driver default. 144 * 3.1FC: select GL version 3.1 with forward compatibility and GL_ARB_compatibility disabled. 145 * 3.1COMPAT: select GL version 3.1 with GL_ARB_compatibility enabled. 146 * X.Y: override GL version to X.Y without changing the profile. 147 * X.YFC: select a Core+Forward Compatible profile with GL version X.Y. 148 * X.YCOMPAT: select a Compatibility profile with GL version X.Y. 149 * 150 * Example uses of MESA_GLES_VERSION_OVERRIDE: 151 * 152 * 2.0: select GLES version 2.0. 153 * 3.0: select GLES version 3.0. 154 * 3.1: select GLES version 3.1. 155 */ 156bool 157_mesa_override_gl_version_contextless(struct gl_constants *consts, 158 gl_api *apiOut, GLuint *versionOut) 159{ 160 int version; 161 bool fwd_context, compat_context; 162 163 get_gl_override(*apiOut, &version, &fwd_context, &compat_context); 164 165 if (version > 0) { 166 *versionOut = version; 167 168 /* Modify the API and context flags as needed. */ 169 if (*apiOut == API_OPENGL_CORE || *apiOut == API_OPENGL_COMPAT) { 170 if (version >= 30 && fwd_context) { 171 *apiOut = API_OPENGL_CORE; 172 consts->ContextFlags |= GL_CONTEXT_FLAG_FORWARD_COMPATIBLE_BIT; 173 } else if (compat_context) { 174 *apiOut = API_OPENGL_COMPAT; 175 } 176 } 177 178 return true; 179 } 180 return false; 181} 182 183void 184_mesa_override_gl_version(struct gl_context *ctx) 185{ 186 if (_mesa_override_gl_version_contextless(&ctx->Const, &ctx->API, 187 &ctx->Version)) { 188 /* We need to include API in version string for OpenGL ES, otherwise 189 * application can not detect GLES via glGetString(GL_VERSION) query. 190 * 191 * From OpenGL ES 3.2 spec, Page 436: 192 * 193 * "The VERSION string is laid out as follows: 194 * 195 * OpenGL ES N.M vendor-specific information" 196 * 197 * From OpenGL 4.5 spec, Page 538: 198 * 199 * "The VERSION and SHADING_LANGUAGE_VERSION strings are laid out as 200 * follows: 201 * 202 * <version number><space><vendor-specific information>" 203 */ 204 create_version_string(ctx, _mesa_is_gles(ctx) ? "OpenGL ES " : ""); 205 ctx->Extensions.Version = ctx->Version; 206 } 207} 208 209/** 210 * Override the context's GLSL version if the environment variable 211 * MESA_GLSL_VERSION_OVERRIDE is set. Valid values for 212 * MESA_GLSL_VERSION_OVERRIDE are integers, such as "130". 213 */ 214void 215_mesa_override_glsl_version(struct gl_constants *consts) 216{ 217 const char *env_var = "MESA_GLSL_VERSION_OVERRIDE"; 218 const char *version; 219 int n; 220 221 version = getenv(env_var); 222 if (!version) { 223 return; 224 } 225 226 n = sscanf(version, "%u", &consts->GLSLVersion); 227 if (n != 1) { 228 fprintf(stderr, "error: invalid value for %s: %s\n", env_var, version); 229 return; 230 } 231} 232 233/** 234 * Examine enabled GL extensions to determine GL version. 235 */ 236static GLuint 237compute_version(const struct gl_extensions *extensions, 238 const struct gl_constants *consts, gl_api api) 239{ 240 GLuint major, minor, version; 241 242 const bool ver_1_3 = (extensions->ARB_texture_border_clamp && 243 extensions->ARB_texture_cube_map && 244 extensions->ARB_texture_env_combine && 245 extensions->ARB_texture_env_dot3); 246 const bool ver_1_4 = (ver_1_3 && 247 extensions->ARB_depth_texture && 248 extensions->ARB_shadow && 249 extensions->ARB_texture_env_crossbar && 250 extensions->EXT_blend_color && 251 extensions->EXT_blend_func_separate && 252 extensions->EXT_blend_minmax && 253 extensions->EXT_point_parameters); 254 const bool ver_1_5 = (ver_1_4 && 255 extensions->ARB_occlusion_query); 256 const bool ver_2_0 = (ver_1_5 && 257 extensions->ARB_point_sprite && 258 extensions->ARB_vertex_shader && 259 extensions->ARB_fragment_shader && 260 extensions->ARB_texture_non_power_of_two && 261 extensions->EXT_blend_equation_separate && 262 extensions->EXT_stencil_two_side); 263 const bool ver_2_1 = (ver_2_0 && 264 extensions->EXT_pixel_buffer_object && 265 extensions->EXT_texture_sRGB); 266 const bool ver_3_0 = (ver_2_1 && 267 consts->GLSLVersion >= 130 && 268 (consts->MaxSamples >= 4 || consts->FakeSWMSAA) && 269 (api == API_OPENGL_CORE || 270 extensions->ARB_color_buffer_float) && 271 extensions->ARB_depth_buffer_float && 272 extensions->ARB_half_float_vertex && 273 extensions->ARB_map_buffer_range && 274 extensions->ARB_shader_texture_lod && 275 extensions->ARB_texture_float && 276 extensions->ARB_texture_rg && 277 extensions->ARB_texture_compression_rgtc && 278 extensions->EXT_draw_buffers2 && 279 extensions->ARB_framebuffer_object && 280 extensions->EXT_framebuffer_sRGB && 281 extensions->EXT_packed_float && 282 extensions->EXT_texture_array && 283 extensions->EXT_texture_shared_exponent && 284 extensions->EXT_transform_feedback && 285 extensions->NV_conditional_render); 286 const bool ver_3_1 = (ver_3_0 && 287 consts->GLSLVersion >= 140 && 288 extensions->ARB_draw_instanced && 289 extensions->ARB_texture_buffer_object && 290 extensions->ARB_uniform_buffer_object && 291 extensions->EXT_texture_snorm && 292 extensions->NV_primitive_restart && 293 extensions->NV_texture_rectangle && 294 consts->Program[MESA_SHADER_VERTEX].MaxTextureImageUnits >= 16); 295 const bool ver_3_2 = (ver_3_1 && 296 consts->GLSLVersion >= 150 && 297 extensions->ARB_depth_clamp && 298 extensions->ARB_draw_elements_base_vertex && 299 extensions->ARB_fragment_coord_conventions && 300 extensions->EXT_provoking_vertex && 301 extensions->ARB_seamless_cube_map && 302 extensions->ARB_sync && 303 extensions->ARB_texture_multisample && 304 extensions->EXT_vertex_array_bgra); 305 const bool ver_3_3 = (ver_3_2 && 306 consts->GLSLVersion >= 330 && 307 extensions->ARB_blend_func_extended && 308 extensions->ARB_explicit_attrib_location && 309 extensions->ARB_instanced_arrays && 310 extensions->ARB_occlusion_query2 && 311 extensions->ARB_shader_bit_encoding && 312 extensions->ARB_texture_rgb10_a2ui && 313 extensions->ARB_timer_query && 314 extensions->ARB_vertex_type_2_10_10_10_rev && 315 extensions->EXT_texture_swizzle); 316 /* ARB_sampler_objects is always enabled in mesa */ 317 318 const bool ver_4_0 = (ver_3_3 && 319 consts->GLSLVersion >= 400 && 320 extensions->ARB_draw_buffers_blend && 321 extensions->ARB_draw_indirect && 322 extensions->ARB_gpu_shader5 && 323 extensions->ARB_gpu_shader_fp64 && 324 extensions->ARB_sample_shading && 325 extensions->ARB_tessellation_shader && 326 extensions->ARB_texture_buffer_object_rgb32 && 327 extensions->ARB_texture_cube_map_array && 328 extensions->ARB_texture_query_lod && 329 extensions->ARB_transform_feedback2 && 330 extensions->ARB_transform_feedback3); 331 const bool ver_4_1 = (ver_4_0 && 332 consts->GLSLVersion >= 410 && 333 extensions->ARB_ES2_compatibility && 334 extensions->ARB_shader_precision && 335 extensions->ARB_vertex_attrib_64bit && 336 extensions->ARB_viewport_array); 337 const bool ver_4_2 = (ver_4_1 && 338 consts->GLSLVersion >= 420 && 339 extensions->ARB_base_instance && 340 extensions->ARB_conservative_depth && 341 extensions->ARB_internalformat_query && 342 extensions->ARB_shader_atomic_counters && 343 extensions->ARB_shader_image_load_store && 344 extensions->ARB_shading_language_420pack && 345 extensions->ARB_shading_language_packing && 346 extensions->ARB_texture_compression_bptc && 347 extensions->ARB_transform_feedback_instanced); 348 const bool ver_4_3 = (ver_4_2 && 349 consts->GLSLVersion >= 430 && 350 consts->Program[MESA_SHADER_VERTEX].MaxUniformBlocks >= 14 && 351 extensions->ARB_ES3_compatibility && 352 extensions->ARB_arrays_of_arrays && 353 extensions->ARB_compute_shader && 354 extensions->ARB_copy_image && 355 extensions->ARB_explicit_uniform_location && 356 extensions->ARB_fragment_layer_viewport && 357 extensions->ARB_framebuffer_no_attachments && 358 extensions->ARB_internalformat_query2 && 359 extensions->ARB_robust_buffer_access_behavior && 360 extensions->ARB_shader_image_size && 361 extensions->ARB_shader_storage_buffer_object && 362 extensions->ARB_stencil_texturing && 363 extensions->ARB_texture_buffer_range && 364 extensions->ARB_texture_query_levels && 365 extensions->ARB_texture_view); 366 const bool ver_4_4 = (ver_4_3 && 367 consts->GLSLVersion >= 440 && 368 consts->MaxVertexAttribStride >= 2048 && 369 extensions->ARB_buffer_storage && 370 extensions->ARB_clear_texture && 371 extensions->ARB_enhanced_layouts && 372 extensions->ARB_query_buffer_object && 373 extensions->ARB_texture_mirror_clamp_to_edge && 374 extensions->ARB_texture_stencil8 && 375 extensions->ARB_vertex_type_10f_11f_11f_rev); 376 const bool ver_4_5 = (ver_4_4 && 377 consts->GLSLVersion >= 450 && 378 extensions->ARB_ES3_1_compatibility && 379 extensions->ARB_clip_control && 380 extensions->ARB_conditional_render_inverted && 381 extensions->ARB_cull_distance && 382 extensions->ARB_derivative_control && 383 extensions->ARB_shader_texture_image_samples && 384 extensions->NV_texture_barrier); 385 const bool ver_4_6 = (ver_4_5 && 386 consts->GLSLVersion >= 460 && 387 /* extensions->ARB_gl_spirv */ 0 && 388 /* extensions->ARB_spirv_extensions */ 0 && 389 extensions->ARB_indirect_parameters && 390 extensions->ARB_pipeline_statistics_query && 391 extensions->ARB_polygon_offset_clamp && 392 extensions->ARB_shader_atomic_counter_ops && 393 extensions->ARB_shader_draw_parameters && 394 extensions->ARB_shader_group_vote && 395 extensions->ARB_texture_filter_anisotropic && 396 extensions->ARB_transform_feedback_overflow_query); 397 398 if (ver_4_6) { 399 major = 4; 400 minor = 6; 401 } 402 else if (ver_4_5) { 403 major = 4; 404 minor = 5; 405 } 406 else if (ver_4_4) { 407 major = 4; 408 minor = 4; 409 } 410 else if (ver_4_3) { 411 major = 4; 412 minor = 3; 413 } 414 else if (ver_4_2) { 415 major = 4; 416 minor = 2; 417 } 418 else if (ver_4_1) { 419 major = 4; 420 minor = 1; 421 } 422 else if (ver_4_0) { 423 major = 4; 424 minor = 0; 425 } 426 else if (ver_3_3) { 427 major = 3; 428 minor = 3; 429 } 430 else if (ver_3_2) { 431 major = 3; 432 minor = 2; 433 } 434 else if (ver_3_1) { 435 major = 3; 436 minor = 1; 437 } 438 else if (ver_3_0) { 439 major = 3; 440 minor = 0; 441 } 442 else if (ver_2_1) { 443 major = 2; 444 minor = 1; 445 } 446 else if (ver_2_0) { 447 major = 2; 448 minor = 0; 449 } 450 else if (ver_1_5) { 451 major = 1; 452 minor = 5; 453 } 454 else if (ver_1_4) { 455 major = 1; 456 minor = 4; 457 } 458 else if (ver_1_3) { 459 major = 1; 460 minor = 3; 461 } 462 else { 463 major = 1; 464 minor = 2; 465 } 466 467 version = major * 10 + minor; 468 469 if (api == API_OPENGL_CORE && version < 31) 470 return 0; 471 472 return version; 473} 474 475static GLuint 476compute_version_es1(const struct gl_extensions *extensions) 477{ 478 /* OpenGL ES 1.0 is derived from OpenGL 1.3 */ 479 const bool ver_1_0 = (extensions->ARB_texture_env_combine && 480 extensions->ARB_texture_env_dot3); 481 /* OpenGL ES 1.1 is derived from OpenGL 1.5 */ 482 const bool ver_1_1 = (ver_1_0 && 483 extensions->EXT_point_parameters); 484 485 if (ver_1_1) { 486 return 11; 487 } else if (ver_1_0) { 488 return 10; 489 } else { 490 return 0; 491 } 492} 493 494static GLuint 495compute_version_es2(const struct gl_extensions *extensions, 496 const struct gl_constants *consts) 497{ 498 /* OpenGL ES 2.0 is derived from OpenGL 2.0 */ 499 const bool ver_2_0 = (extensions->ARB_texture_cube_map && 500 extensions->EXT_blend_color && 501 extensions->EXT_blend_func_separate && 502 extensions->EXT_blend_minmax && 503 extensions->ARB_vertex_shader && 504 extensions->ARB_fragment_shader && 505 extensions->ARB_texture_non_power_of_two && 506 extensions->EXT_blend_equation_separate); 507 /* FINISHME: This list isn't quite right. */ 508 const bool ver_3_0 = (extensions->ARB_half_float_vertex && 509 extensions->ARB_internalformat_query && 510 extensions->ARB_map_buffer_range && 511 extensions->ARB_shader_texture_lod && 512 extensions->OES_texture_float && 513 extensions->OES_texture_half_float && 514 extensions->OES_texture_half_float_linear && 515 extensions->ARB_texture_rg && 516 extensions->ARB_depth_buffer_float && 517 extensions->ARB_framebuffer_object && 518 extensions->EXT_sRGB && 519 extensions->EXT_packed_float && 520 extensions->EXT_texture_array && 521 extensions->EXT_texture_shared_exponent && 522 extensions->EXT_texture_sRGB && 523 extensions->EXT_transform_feedback && 524 extensions->ARB_draw_instanced && 525 extensions->ARB_uniform_buffer_object && 526 extensions->EXT_texture_snorm && 527 extensions->NV_primitive_restart && 528 extensions->OES_depth_texture_cube_map && 529 extensions->EXT_texture_type_2_10_10_10_REV); 530 const bool es31_compute_shader = 531 consts->MaxComputeWorkGroupInvocations >= 128; 532 const bool ver_3_1 = (ver_3_0 && 533 consts->MaxVertexAttribStride >= 2048 && 534 extensions->ARB_arrays_of_arrays && 535 es31_compute_shader && 536 extensions->ARB_draw_indirect && 537 extensions->ARB_explicit_uniform_location && 538 extensions->ARB_framebuffer_no_attachments && 539 extensions->ARB_shader_atomic_counters && 540 extensions->ARB_shader_image_load_store && 541 extensions->ARB_shader_image_size && 542 extensions->ARB_shader_storage_buffer_object && 543 extensions->ARB_shading_language_packing && 544 extensions->ARB_stencil_texturing && 545 extensions->ARB_texture_multisample && 546 extensions->ARB_texture_gather && 547 extensions->MESA_shader_integer_functions && 548 extensions->EXT_shader_integer_mix); 549 const bool ver_3_2 = (ver_3_1 && 550 extensions->EXT_draw_buffers2 && 551 extensions->KHR_blend_equation_advanced && 552 extensions->KHR_robustness && 553 extensions->KHR_texture_compression_astc_ldr && 554 extensions->OES_copy_image && 555 extensions->ARB_draw_buffers_blend && 556 extensions->ARB_draw_elements_base_vertex && 557 extensions->OES_geometry_shader && 558 extensions->OES_primitive_bounding_box && 559 extensions->OES_sample_variables && 560 extensions->ARB_tessellation_shader && 561 extensions->ARB_texture_border_clamp && 562 extensions->OES_texture_buffer && 563 extensions->OES_texture_cube_map_array && 564 extensions->ARB_texture_stencil8); 565 566 if (ver_3_2) { 567 return 32; 568 } else if (ver_3_1) { 569 return 31; 570 } else if (ver_3_0) { 571 return 30; 572 } else if (ver_2_0) { 573 return 20; 574 } else { 575 return 0; 576 } 577} 578 579GLuint 580_mesa_get_version(const struct gl_extensions *extensions, 581 struct gl_constants *consts, gl_api api) 582{ 583 switch (api) { 584 case API_OPENGL_COMPAT: 585 /* Disable higher GLSL versions for legacy contexts. 586 * This disallows creation of higher compatibility contexts. */ 587 if (!consts->AllowHigherCompatVersion) { 588 consts->GLSLVersion = consts->GLSLVersionCompat; 589 } 590 /* fall through */ 591 case API_OPENGL_CORE: 592 return compute_version(extensions, consts, api); 593 case API_OPENGLES: 594 return compute_version_es1(extensions); 595 case API_OPENGLES2: 596 return compute_version_es2(extensions, consts); 597 } 598 return 0; 599} 600 601/** 602 * Set the context's Version and VersionString fields. 603 * This should only be called once as part of context initialization 604 * or to perform version check for GLX_ARB_create_context_profile. 605 */ 606void 607_mesa_compute_version(struct gl_context *ctx) 608{ 609 if (ctx->Version) 610 goto done; 611 612 ctx->Version = _mesa_get_version(&ctx->Extensions, &ctx->Const, ctx->API); 613 ctx->Extensions.Version = ctx->Version; 614 615 /* Make sure that the GLSL version lines up with the GL version. In some 616 * cases it can be too high, e.g. if an extension is missing. 617 */ 618 if (_mesa_is_desktop_gl(ctx)) { 619 switch (ctx->Version) { 620 case 20: 621 /* fall-through, GLSL 1.20 is the minimum we support */ 622 case 21: 623 ctx->Const.GLSLVersion = 120; 624 break; 625 case 30: 626 ctx->Const.GLSLVersion = 130; 627 break; 628 case 31: 629 ctx->Const.GLSLVersion = 140; 630 break; 631 case 32: 632 ctx->Const.GLSLVersion = 150; 633 break; 634 default: 635 if (ctx->Version >= 33) 636 ctx->Const.GLSLVersion = ctx->Version * 10; 637 break; 638 } 639 } 640 641 switch (ctx->API) { 642 case API_OPENGL_COMPAT: 643 case API_OPENGL_CORE: 644 create_version_string(ctx, ""); 645 break; 646 647 case API_OPENGLES: 648 if (!ctx->Version) { 649 _mesa_problem(ctx, "Incomplete OpenGL ES 1.0 support."); 650 return; 651 } 652 create_version_string(ctx, "OpenGL ES-CM "); 653 break; 654 655 case API_OPENGLES2: 656 if (!ctx->Version) { 657 _mesa_problem(ctx, "Incomplete OpenGL ES 2.0 support."); 658 return; 659 } 660 create_version_string(ctx, "OpenGL ES "); 661 break; 662 } 663 664done: 665 if (ctx->API == API_OPENGL_COMPAT && ctx->Version >= 31) 666 ctx->Extensions.ARB_compatibility = GL_TRUE; 667} 668 669 670void 671_mesa_get_driver_uuid(struct gl_context *ctx, GLint *uuid) 672{ 673 ctx->Driver.GetDriverUuid(ctx, (char*) uuid); 674} 675 676void 677_mesa_get_device_uuid(struct gl_context *ctx, GLint *uuid) 678{ 679 ctx->Driver.GetDeviceUuid(ctx, (char*) uuid); 680} 681 682/** 683 * Get the i-th GLSL version string. If index=0, return the most recent 684 * supported version. 685 * \param ctx context to query 686 * \param index which version string to return, or -1 if none 687 * \param versionOut returns the vesrion string 688 * \return total number of shading language versions. 689 */ 690int 691_mesa_get_shading_language_version(const struct gl_context *ctx, 692 int index, 693 char **versionOut) 694{ 695 int n = 0; 696 697#define GLSL_VERSION(S) \ 698 if (n++ == index) \ 699 *versionOut = S 700 701 /* GLSL core */ 702 if (ctx->Const.GLSLVersion >= 460) 703 GLSL_VERSION("460"); 704 if (ctx->Const.GLSLVersion >= 450) 705 GLSL_VERSION("450"); 706 if (ctx->Const.GLSLVersion >= 440) 707 GLSL_VERSION("440"); 708 if (ctx->Const.GLSLVersion >= 430) 709 GLSL_VERSION("430"); 710 if (ctx->Const.GLSLVersion >= 420) 711 GLSL_VERSION("420"); 712 if (ctx->Const.GLSLVersion >= 410) 713 GLSL_VERSION("410"); 714 if (ctx->Const.GLSLVersion >= 400) 715 GLSL_VERSION("400"); 716 if (ctx->Const.GLSLVersion >= 330) 717 GLSL_VERSION("330"); 718 if (ctx->Const.GLSLVersion >= 150) 719 GLSL_VERSION("150"); 720 if (ctx->Const.GLSLVersion >= 140) 721 GLSL_VERSION("140"); 722 if (ctx->Const.GLSLVersion >= 130) 723 GLSL_VERSION("130"); 724 if (ctx->Const.GLSLVersion >= 120) 725 GLSL_VERSION("120"); 726 /* The GL spec says to return the empty string for GLSL 1.10 */ 727 if (ctx->Const.GLSLVersion >= 110) 728 GLSL_VERSION(""); 729 730 /* GLSL es */ 731 if ((ctx->API == API_OPENGLES2 && ctx->Version >= 32) || 732 ctx->Extensions.ARB_ES3_2_compatibility) 733 GLSL_VERSION("320 es"); 734 if (_mesa_is_gles31(ctx) || ctx->Extensions.ARB_ES3_1_compatibility) 735 GLSL_VERSION("310 es"); 736 if (_mesa_is_gles3(ctx) || ctx->Extensions.ARB_ES3_compatibility) 737 GLSL_VERSION("300 es"); 738 if (ctx->API == API_OPENGLES2 || ctx->Extensions.ARB_ES2_compatibility) 739 GLSL_VERSION("100"); 740 741#undef GLSL_VERSION 742 743 return n; 744} 745