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 "draw_validate.h" 29 30#include "util/os_misc.h" 31#include "util/simple_mtx.h" 32 33#include "mtypes.h" 34#include "version.h" 35#include "git_sha1.h" 36 37#include "state_tracker/st_context.h" 38 39static simple_mtx_t override_lock = _SIMPLE_MTX_INITIALIZER_NP; 40 41/** 42 * Scans 'string' to see if it ends with 'ending'. 43 */ 44static bool 45check_for_ending(const char *string, const char *ending) 46{ 47 const size_t len1 = strlen(string); 48 const size_t len2 = strlen(ending); 49 50 if (len2 > len1) 51 return false; 52 53 return strcmp(string + (len1 - len2), ending) == 0; 54} 55 56/** 57 * Returns the gl override data 58 * 59 * version > 0 indicates there is an override requested 60 * fwd_context is only valid if version > 0 61 */ 62static void 63get_gl_override(gl_api api, int *version, bool *fwd_context, 64 bool *compat_context) 65{ 66 const char *env_var = (api == API_OPENGL_CORE || api == API_OPENGL_COMPAT) 67 ? "MESA_GL_VERSION_OVERRIDE" : "MESA_GLES_VERSION_OVERRIDE"; 68 const char *version_str; 69 int major, minor, n; 70 static struct override_info { 71 int version; 72 bool fc_suffix; 73 bool compat_suffix; 74 } override[] = { 75 [API_OPENGL_COMPAT] = { -1, false, false}, 76 [API_OPENGLES] = { -1, false, false}, 77 [API_OPENGLES2] = { -1, false, false}, 78 [API_OPENGL_CORE] = { -1, false, false}, 79 }; 80 81 STATIC_ASSERT(ARRAY_SIZE(override) == API_OPENGL_LAST + 1); 82 83 simple_mtx_lock(&override_lock); 84 85 if (api == API_OPENGLES) 86 goto exit; 87 88 if (override[api].version < 0) { 89 override[api].version = 0; 90 91 version_str = os_get_option(env_var); 92 if (version_str) { 93 override[api].fc_suffix = check_for_ending(version_str, "FC"); 94 override[api].compat_suffix = check_for_ending(version_str, "COMPAT"); 95 96 n = sscanf(version_str, "%u.%u", &major, &minor); 97 if (n != 2) { 98 fprintf(stderr, "error: invalid value for %s: %s\n", 99 env_var, version_str); 100 override[api].version = 0; 101 } else { 102 override[api].version = major * 10 + minor; 103 104 /* There is no such thing as compatibility or forward-compatible for 105 * OpenGL ES 2.0 or 3.x APIs. 106 */ 107 if ((override[api].version < 30 && override[api].fc_suffix) || 108 (api == API_OPENGLES2 && (override[api].fc_suffix || 109 override[api].compat_suffix))) { 110 fprintf(stderr, "error: invalid value for %s: %s\n", 111 env_var, version_str); 112 } 113 } 114 } 115 } 116 117exit: 118 *version = override[api].version; 119 *fwd_context = override[api].fc_suffix; 120 *compat_context = override[api].compat_suffix; 121 122 simple_mtx_unlock(&override_lock); 123} 124 125/** 126 * Builds the Mesa version string. 127 */ 128static void 129create_version_string(struct gl_context *ctx, const char *prefix) 130{ 131 static const int max = 100; 132 133 ctx->VersionString = malloc(max); 134 if (ctx->VersionString) { 135 snprintf(ctx->VersionString, max, 136 "%s%u.%u%s Mesa " PACKAGE_VERSION MESA_GIT_SHA1, 137 prefix, 138 ctx->Version / 10, ctx->Version % 10, 139 (ctx->API == API_OPENGL_CORE) ? " (Core Profile)" : 140 (ctx->API == API_OPENGL_COMPAT && ctx->Version >= 32) ? 141 " (Compatibility Profile)" : "" 142 ); 143 } 144} 145 146/** 147 * Override the context's version and/or API type if the environment variables 148 * MESA_GL_VERSION_OVERRIDE or MESA_GLES_VERSION_OVERRIDE are set. 149 * 150 * Example uses of MESA_GL_VERSION_OVERRIDE: 151 * 152 * 2.1: select a compatibility (non-Core) profile with GL version 2.1. 153 * 3.0: select a compatibility (non-Core) profile with GL version 3.0. 154 * 3.0FC: select a Core+Forward Compatible profile with GL version 3.0. 155 * 3.1: select GL version 3.1 with GL_ARB_compatibility enabled per the driver default. 156 * 3.1FC: select GL version 3.1 with forward compatibility and GL_ARB_compatibility disabled. 157 * 3.1COMPAT: select GL version 3.1 with GL_ARB_compatibility enabled. 158 * X.Y: override GL version to X.Y without changing the profile. 159 * X.YFC: select a Core+Forward Compatible profile with GL version X.Y. 160 * X.YCOMPAT: select a Compatibility profile with GL version X.Y. 161 * 162 * Example uses of MESA_GLES_VERSION_OVERRIDE: 163 * 164 * 2.0: select GLES version 2.0. 165 * 3.0: select GLES version 3.0. 166 * 3.1: select GLES version 3.1. 167 */ 168bool 169_mesa_override_gl_version_contextless(struct gl_constants *consts, 170 gl_api *apiOut, GLuint *versionOut) 171{ 172 int version; 173 bool fwd_context, compat_context; 174 175 get_gl_override(*apiOut, &version, &fwd_context, &compat_context); 176 177 if (version > 0) { 178 *versionOut = version; 179 180 /* Modify the API and context flags as needed. */ 181 if (*apiOut == API_OPENGL_CORE || *apiOut == API_OPENGL_COMPAT) { 182 if (version >= 30 && fwd_context) { 183 *apiOut = API_OPENGL_CORE; 184 consts->ContextFlags |= GL_CONTEXT_FLAG_FORWARD_COMPATIBLE_BIT; 185 } else if (compat_context) { 186 *apiOut = API_OPENGL_COMPAT; 187 } 188 } 189 190 return true; 191 } 192 return false; 193} 194 195void 196_mesa_override_gl_version(struct gl_context *ctx) 197{ 198 if (_mesa_override_gl_version_contextless(&ctx->Const, &ctx->API, 199 &ctx->Version)) { 200 /* We need to include API in version string for OpenGL ES, otherwise 201 * application can not detect GLES via glGetString(GL_VERSION) query. 202 * 203 * From OpenGL ES 3.2 spec, Page 436: 204 * 205 * "The VERSION string is laid out as follows: 206 * 207 * OpenGL ES N.M vendor-specific information" 208 * 209 * From OpenGL 4.5 spec, Page 538: 210 * 211 * "The VERSION and SHADING_LANGUAGE_VERSION strings are laid out as 212 * follows: 213 * 214 * <version number><space><vendor-specific information>" 215 */ 216 create_version_string(ctx, _mesa_is_gles(ctx) ? "OpenGL ES " : ""); 217 ctx->Extensions.Version = ctx->Version; 218 } 219} 220 221/** 222 * Override the context's GLSL version if the environment variable 223 * MESA_GLSL_VERSION_OVERRIDE is set. Valid values for 224 * MESA_GLSL_VERSION_OVERRIDE are integers, such as "130". 225 */ 226void 227_mesa_override_glsl_version(struct gl_constants *consts) 228{ 229 const char *env_var = "MESA_GLSL_VERSION_OVERRIDE"; 230 const char *version; 231 int n; 232 233 version = getenv(env_var); 234 if (!version) { 235 return; 236 } 237 238 n = sscanf(version, "%u", &consts->GLSLVersion); 239 if (n != 1) { 240 fprintf(stderr, "error: invalid value for %s: %s\n", env_var, version); 241 return; 242 } 243} 244 245/** 246 * Examine enabled GL extensions to determine GL version. 247 */ 248static GLuint 249compute_version(const struct gl_extensions *extensions, 250 const struct gl_constants *consts, gl_api api) 251{ 252 GLuint major, minor, version; 253 254 const bool ver_1_4 = (extensions->ARB_shadow); 255 const bool ver_1_5 = (ver_1_4 && 256 extensions->ARB_occlusion_query); 257 const bool ver_2_0 = (ver_1_5 && 258 extensions->ARB_point_sprite && 259 extensions->ARB_vertex_shader && 260 extensions->ARB_fragment_shader && 261 extensions->ARB_texture_non_power_of_two && 262 extensions->EXT_blend_equation_separate && 263 extensions->EXT_stencil_two_side); 264 const bool ver_2_1 = (ver_2_0 && 265 extensions->EXT_pixel_buffer_object && 266 extensions->EXT_texture_sRGB); 267 /* We lie about the minimum number of color attachments. Strictly, OpenGL 268 * 3.0 requires 8, whereas OpenGL ES requires 4. OpenGL ES 3.0 class 269 * hardware may only support 4 render targets. Advertise non-conformant 270 * OpenGL 3.0 anyway. Affects freedreno on a3xx 271 */ 272 const bool ver_3_0 = (ver_2_1 && 273 consts->GLSLVersion >= 130 && 274 consts->MaxColorAttachments >= 4 && 275 (consts->MaxSamples >= 4 || consts->FakeSWMSAA) && 276 (api == API_OPENGL_CORE || 277 extensions->ARB_color_buffer_float) && 278 extensions->ARB_depth_buffer_float && 279 extensions->ARB_half_float_vertex && 280 extensions->ARB_map_buffer_range && 281 extensions->ARB_shader_texture_lod && 282 extensions->ARB_texture_float && 283 extensions->ARB_texture_rg && 284 extensions->ARB_texture_compression_rgtc && 285 extensions->EXT_draw_buffers2 && 286 extensions->ARB_framebuffer_object && 287 extensions->EXT_framebuffer_sRGB && 288 extensions->EXT_packed_float && 289 extensions->EXT_texture_array && 290 extensions->EXT_texture_shared_exponent && 291 extensions->EXT_transform_feedback && 292 extensions->NV_conditional_render); 293 const bool ver_3_1 = (ver_3_0 && 294 consts->GLSLVersion >= 140 && 295 extensions->ARB_draw_instanced && 296 extensions->ARB_texture_buffer_object && 297 extensions->ARB_uniform_buffer_object && 298 extensions->EXT_texture_snorm && 299 extensions->NV_primitive_restart && 300 extensions->NV_texture_rectangle && 301 consts->Program[MESA_SHADER_VERTEX].MaxTextureImageUnits >= 16); 302 const bool ver_3_2 = (ver_3_1 && 303 consts->GLSLVersion >= 150 && 304 extensions->ARB_depth_clamp && 305 extensions->ARB_draw_elements_base_vertex && 306 extensions->ARB_fragment_coord_conventions && 307 extensions->EXT_provoking_vertex && 308 extensions->ARB_seamless_cube_map && 309 extensions->ARB_sync && 310 extensions->ARB_texture_multisample && 311 extensions->EXT_vertex_array_bgra); 312 const bool ver_3_3 = (ver_3_2 && 313 consts->GLSLVersion >= 330 && 314 extensions->ARB_blend_func_extended && 315 extensions->ARB_explicit_attrib_location && 316 extensions->ARB_instanced_arrays && 317 extensions->ARB_occlusion_query2 && 318 extensions->ARB_shader_bit_encoding && 319 extensions->ARB_texture_rgb10_a2ui && 320 extensions->ARB_timer_query && 321 extensions->ARB_vertex_type_2_10_10_10_rev && 322 extensions->EXT_texture_swizzle); 323 /* ARB_sampler_objects is always enabled in mesa */ 324 325 const bool ver_4_0 = (ver_3_3 && 326 consts->GLSLVersion >= 400 && 327 extensions->ARB_draw_buffers_blend && 328 extensions->ARB_draw_indirect && 329 extensions->ARB_gpu_shader5 && 330 extensions->ARB_gpu_shader_fp64 && 331 extensions->ARB_sample_shading && 332 extensions->ARB_tessellation_shader && 333 extensions->ARB_texture_buffer_object_rgb32 && 334 extensions->ARB_texture_cube_map_array && 335 extensions->ARB_texture_query_lod && 336 extensions->ARB_transform_feedback2 && 337 extensions->ARB_transform_feedback3); 338 const bool ver_4_1 = (ver_4_0 && 339 consts->GLSLVersion >= 410 && 340 consts->MaxTextureSize >= 16384 && 341 consts->MaxRenderbufferSize >= 16384 && 342 extensions->ARB_ES2_compatibility && 343 extensions->ARB_shader_precision && 344 extensions->ARB_vertex_attrib_64bit && 345 extensions->ARB_viewport_array); 346 const bool ver_4_2 = (ver_4_1 && 347 consts->GLSLVersion >= 420 && 348 extensions->ARB_base_instance && 349 extensions->ARB_conservative_depth && 350 extensions->ARB_internalformat_query && 351 extensions->ARB_shader_atomic_counters && 352 extensions->ARB_shader_image_load_store && 353 extensions->ARB_shading_language_420pack && 354 extensions->ARB_shading_language_packing && 355 extensions->ARB_texture_compression_bptc && 356 extensions->ARB_transform_feedback_instanced); 357 const bool ver_4_3 = (ver_4_2 && 358 consts->GLSLVersion >= 430 && 359 consts->Program[MESA_SHADER_VERTEX].MaxUniformBlocks >= 14 && 360 extensions->ARB_ES3_compatibility && 361 extensions->ARB_arrays_of_arrays && 362 extensions->ARB_compute_shader && 363 extensions->ARB_copy_image && 364 extensions->ARB_explicit_uniform_location && 365 extensions->ARB_fragment_layer_viewport && 366 extensions->ARB_framebuffer_no_attachments && 367 extensions->ARB_internalformat_query2 && 368 extensions->ARB_robust_buffer_access_behavior && 369 extensions->ARB_shader_image_size && 370 extensions->ARB_shader_storage_buffer_object && 371 extensions->ARB_stencil_texturing && 372 extensions->ARB_texture_buffer_range && 373 extensions->ARB_texture_query_levels && 374 extensions->ARB_texture_view); 375 const bool ver_4_4 = (ver_4_3 && 376 consts->GLSLVersion >= 440 && 377 consts->MaxVertexAttribStride >= 2048 && 378 extensions->ARB_buffer_storage && 379 extensions->ARB_clear_texture && 380 extensions->ARB_enhanced_layouts && 381 extensions->ARB_query_buffer_object && 382 extensions->ARB_texture_mirror_clamp_to_edge && 383 extensions->ARB_texture_stencil8 && 384 extensions->ARB_vertex_type_10f_11f_11f_rev); 385 const bool ver_4_5 = (ver_4_4 && 386 consts->GLSLVersion >= 450 && 387 extensions->ARB_ES3_1_compatibility && 388 extensions->ARB_clip_control && 389 extensions->ARB_conditional_render_inverted && 390 extensions->ARB_cull_distance && 391 extensions->ARB_derivative_control && 392 extensions->ARB_shader_texture_image_samples && 393 extensions->NV_texture_barrier); 394 const bool ver_4_6 = (ver_4_5 && 395 consts->GLSLVersion >= 460 && 396 extensions->ARB_gl_spirv && 397 extensions->ARB_spirv_extensions && 398 extensions->ARB_indirect_parameters && 399 extensions->ARB_pipeline_statistics_query && 400 extensions->ARB_polygon_offset_clamp && 401 extensions->ARB_shader_atomic_counter_ops && 402 extensions->ARB_shader_draw_parameters && 403 extensions->ARB_shader_group_vote && 404 extensions->ARB_texture_filter_anisotropic && 405 extensions->ARB_transform_feedback_overflow_query); 406 407 if (ver_4_6) { 408 major = 4; 409 minor = 6; 410 } 411 else if (ver_4_5) { 412 major = 4; 413 minor = 5; 414 } 415 else if (ver_4_4) { 416 major = 4; 417 minor = 4; 418 } 419 else if (ver_4_3) { 420 major = 4; 421 minor = 3; 422 } 423 else if (ver_4_2) { 424 major = 4; 425 minor = 2; 426 } 427 else if (ver_4_1) { 428 major = 4; 429 minor = 1; 430 } 431 else if (ver_4_0) { 432 major = 4; 433 minor = 0; 434 } 435 else if (ver_3_3) { 436 major = 3; 437 minor = 3; 438 } 439 else if (ver_3_2) { 440 major = 3; 441 minor = 2; 442 } 443 else if (ver_3_1) { 444 major = 3; 445 minor = 1; 446 } 447 else if (ver_3_0) { 448 major = 3; 449 minor = 0; 450 } 451 else if (ver_2_1) { 452 major = 2; 453 minor = 1; 454 } 455 else if (ver_2_0) { 456 major = 2; 457 minor = 0; 458 } 459 else if (ver_1_5) { 460 major = 1; 461 minor = 5; 462 } 463 else if (ver_1_4) { 464 major = 1; 465 minor = 4; 466 } 467 else { 468 major = 1; 469 minor = 3; 470 } 471 472 version = major * 10 + minor; 473 474 if (api == API_OPENGL_CORE && version < 31) 475 return 0; 476 477 return version; 478} 479 480static GLuint 481compute_version_es2(const struct gl_extensions *extensions, 482 const struct gl_constants *consts) 483{ 484 /* OpenGL ES 2.0 is derived from OpenGL 2.0 */ 485 const bool ver_2_0 = (extensions->ARB_vertex_shader && 486 extensions->ARB_fragment_shader && 487 extensions->ARB_texture_non_power_of_two && 488 extensions->EXT_blend_equation_separate); 489 /* FINISHME: This list isn't quite right. */ 490 const bool ver_3_0 = (extensions->ARB_half_float_vertex && 491 extensions->ARB_internalformat_query && 492 extensions->ARB_map_buffer_range && 493 extensions->ARB_shader_texture_lod && 494 extensions->OES_texture_float && 495 extensions->OES_texture_half_float && 496 extensions->OES_texture_half_float_linear && 497 extensions->ARB_texture_rg && 498 extensions->ARB_depth_buffer_float && 499 extensions->ARB_framebuffer_object && 500 extensions->EXT_sRGB && 501 extensions->EXT_packed_float && 502 extensions->EXT_texture_array && 503 extensions->EXT_texture_shared_exponent && 504 extensions->EXT_texture_sRGB && 505 extensions->EXT_transform_feedback && 506 extensions->ARB_draw_instanced && 507 extensions->ARB_uniform_buffer_object && 508 extensions->EXT_texture_snorm && 509 (extensions->NV_primitive_restart || 510 consts->PrimitiveRestartFixedIndex) && 511 extensions->OES_depth_texture_cube_map && 512 extensions->EXT_texture_type_2_10_10_10_REV && 513 consts->MaxColorAttachments >= 4); 514 const bool es31_compute_shader = 515 consts->MaxComputeWorkGroupInvocations >= 128 && 516 consts->Program[MESA_SHADER_COMPUTE].MaxShaderStorageBlocks && 517 consts->Program[MESA_SHADER_COMPUTE].MaxAtomicBuffers && 518 consts->Program[MESA_SHADER_COMPUTE].MaxImageUniforms; 519 const bool ver_3_1 = (ver_3_0 && 520 consts->MaxVertexAttribStride >= 2048 && 521 extensions->ARB_arrays_of_arrays && 522 es31_compute_shader && 523 extensions->ARB_draw_indirect && 524 extensions->ARB_explicit_uniform_location && 525 extensions->ARB_framebuffer_no_attachments && 526 extensions->ARB_shading_language_packing && 527 extensions->ARB_stencil_texturing && 528 extensions->ARB_texture_multisample && 529 extensions->ARB_texture_gather && 530 extensions->MESA_shader_integer_functions && 531 extensions->EXT_shader_integer_mix); 532 const bool ver_3_2 = (ver_3_1 && 533 /* ES 3.2 requires that images/buffers be accessible 534 * from fragment shaders as well 535 */ 536 extensions->ARB_shader_atomic_counters && 537 extensions->ARB_shader_image_load_store && 538 extensions->ARB_shader_image_size && 539 extensions->ARB_shader_storage_buffer_object && 540 541 extensions->EXT_draw_buffers2 && 542 extensions->KHR_blend_equation_advanced && 543 extensions->KHR_robustness && 544 extensions->KHR_texture_compression_astc_ldr && 545 extensions->OES_copy_image && 546 extensions->ARB_draw_buffers_blend && 547 extensions->ARB_draw_elements_base_vertex && 548 extensions->OES_geometry_shader && 549 extensions->OES_primitive_bounding_box && 550 extensions->OES_sample_variables && 551 extensions->ARB_tessellation_shader && 552 extensions->OES_texture_buffer && 553 extensions->OES_texture_cube_map_array && 554 extensions->ARB_texture_stencil8); 555 556 if (ver_3_2) { 557 return 32; 558 } else if (ver_3_1) { 559 return 31; 560 } else if (ver_3_0) { 561 return 30; 562 } else if (ver_2_0) { 563 return 20; 564 } else { 565 return 0; 566 } 567} 568 569GLuint 570_mesa_get_version(const struct gl_extensions *extensions, 571 struct gl_constants *consts, gl_api api) 572{ 573 switch (api) { 574 case API_OPENGL_COMPAT: 575 /* Disable higher GLSL versions for legacy contexts. 576 * This disallows creation of higher compatibility contexts. */ 577 if (!consts->AllowHigherCompatVersion) { 578 consts->GLSLVersion = consts->GLSLVersionCompat; 579 } 580 FALLTHROUGH; 581 case API_OPENGL_CORE: 582 return compute_version(extensions, consts, api); 583 case API_OPENGLES: 584 return 11; 585 case API_OPENGLES2: 586 return compute_version_es2(extensions, consts); 587 } 588 return 0; 589} 590 591/** 592 * Set the context's Version and VersionString fields. 593 * This should only be called once as part of context initialization 594 * or to perform version check for GLX_ARB_create_context_profile. 595 */ 596void 597_mesa_compute_version(struct gl_context *ctx) 598{ 599 if (ctx->Version) 600 goto done; 601 602 ctx->Version = _mesa_get_version(&ctx->Extensions, &ctx->Const, ctx->API); 603 ctx->Extensions.Version = ctx->Version; 604 605 /* Make sure that the GLSL version lines up with the GL version. In some 606 * cases it can be too high, e.g. if an extension is missing. 607 */ 608 if (_mesa_is_desktop_gl(ctx)) { 609 switch (ctx->Version) { 610 case 20: 611 FALLTHROUGH; /* GLSL 1.20 is the minimum we support */ 612 case 21: 613 ctx->Const.GLSLVersion = 120; 614 break; 615 case 30: 616 ctx->Const.GLSLVersion = 130; 617 break; 618 case 31: 619 ctx->Const.GLSLVersion = 140; 620 break; 621 case 32: 622 ctx->Const.GLSLVersion = 150; 623 break; 624 default: 625 if (ctx->Version >= 33) 626 ctx->Const.GLSLVersion = ctx->Version * 10; 627 break; 628 } 629 } 630 631 switch (ctx->API) { 632 case API_OPENGL_COMPAT: 633 case API_OPENGL_CORE: 634 create_version_string(ctx, ""); 635 break; 636 637 case API_OPENGLES: 638 if (!ctx->Version) { 639 _mesa_problem(ctx, "Incomplete OpenGL ES 1.0 support."); 640 return; 641 } 642 create_version_string(ctx, "OpenGL ES-CM "); 643 break; 644 645 case API_OPENGLES2: 646 if (!ctx->Version) { 647 _mesa_problem(ctx, "Incomplete OpenGL ES 2.0 support."); 648 return; 649 } 650 create_version_string(ctx, "OpenGL ES "); 651 break; 652 } 653 654done: 655 if (ctx->API == API_OPENGL_COMPAT && ctx->Version >= 31) 656 ctx->Extensions.ARB_compatibility = GL_TRUE; 657 658 /* Precompute valid primitive types for faster draw time validation. */ 659 /* All primitive type enums are less than 32, so we can use the shift. */ 660 ctx->SupportedPrimMask = (1 << GL_POINTS) | 661 (1 << GL_LINES) | 662 (1 << GL_LINE_LOOP) | 663 (1 << GL_LINE_STRIP) | 664 (1 << GL_TRIANGLES) | 665 (1 << GL_TRIANGLE_STRIP) | 666 (1 << GL_TRIANGLE_FAN); 667 668 if (ctx->API == API_OPENGL_COMPAT) { 669 ctx->SupportedPrimMask |= (1 << GL_QUADS) | 670 (1 << GL_QUAD_STRIP) | 671 (1 << GL_POLYGON); 672 } 673 674 if (_mesa_has_geometry_shaders(ctx)) { 675 ctx->SupportedPrimMask |= (1 << GL_LINES_ADJACENCY) | 676 (1 << GL_LINE_STRIP_ADJACENCY) | 677 (1 << GL_TRIANGLES_ADJACENCY) | 678 (1 << GL_TRIANGLE_STRIP_ADJACENCY); 679 } 680 681 if (_mesa_has_tessellation(ctx)) 682 ctx->SupportedPrimMask |= 1 << GL_PATCHES; 683 684 /* First time initialization. */ 685 _mesa_update_valid_to_render_state(ctx); 686} 687 688 689void 690_mesa_get_driver_uuid(struct gl_context *ctx, GLint *uuid) 691{ 692 struct pipe_screen *screen = ctx->pipe->screen; 693 assert(GL_UUID_SIZE_EXT >= PIPE_UUID_SIZE); 694 memset(uuid, 0, GL_UUID_SIZE_EXT); 695 screen->get_driver_uuid(screen, (char *)uuid); 696} 697 698void 699_mesa_get_device_uuid(struct gl_context *ctx, GLint *uuid) 700{ 701 struct pipe_screen *screen = ctx->pipe->screen; 702 assert(GL_UUID_SIZE_EXT >= PIPE_UUID_SIZE); 703 memset(uuid, 0, GL_UUID_SIZE_EXT); 704 screen->get_device_uuid(screen, (char *)uuid); 705} 706 707void 708_mesa_get_device_luid(struct gl_context *ctx, GLint *luid) 709{ 710 struct pipe_screen *screen = ctx->pipe->screen; 711 assert(GL_LUID_SIZE_EXT >= PIPE_LUID_SIZE); 712 memset(luid, 0, GL_UUID_SIZE_EXT); 713 screen->get_device_luid(screen, (char *)luid); 714} 715 716/** 717 * Get the i-th GLSL version string. If index=0, return the most recent 718 * supported version. 719 * \param ctx context to query 720 * \param index which version string to return, or -1 if none 721 * \param versionOut returns the vesrion string 722 * \return total number of shading language versions. 723 */ 724int 725_mesa_get_shading_language_version(const struct gl_context *ctx, 726 int index, 727 char **versionOut) 728{ 729 int n = 0; 730 731#define GLSL_VERSION(S) \ 732 if (n++ == index) \ 733 *versionOut = S 734 735 /* GLSL core */ 736 if (ctx->Const.GLSLVersion >= 460) 737 GLSL_VERSION("460"); 738 if (ctx->Const.GLSLVersion >= 450) 739 GLSL_VERSION("450"); 740 if (ctx->Const.GLSLVersion >= 440) 741 GLSL_VERSION("440"); 742 if (ctx->Const.GLSLVersion >= 430) 743 GLSL_VERSION("430"); 744 if (ctx->Const.GLSLVersion >= 420) 745 GLSL_VERSION("420"); 746 if (ctx->Const.GLSLVersion >= 410) 747 GLSL_VERSION("410"); 748 if (ctx->Const.GLSLVersion >= 400) 749 GLSL_VERSION("400"); 750 if (ctx->Const.GLSLVersion >= 330) 751 GLSL_VERSION("330"); 752 if (ctx->Const.GLSLVersion >= 150) 753 GLSL_VERSION("150"); 754 if (ctx->Const.GLSLVersion >= 140) 755 GLSL_VERSION("140"); 756 if (ctx->Const.GLSLVersion >= 130) 757 GLSL_VERSION("130"); 758 if (ctx->Const.GLSLVersion >= 120) 759 GLSL_VERSION("120"); 760 /* The GL spec says to return the empty string for GLSL 1.10 */ 761 if (ctx->Const.GLSLVersion >= 110) 762 GLSL_VERSION(""); 763 764 /* GLSL es */ 765 if ((ctx->API == API_OPENGLES2 && ctx->Version >= 32) || 766 ctx->Extensions.ARB_ES3_2_compatibility) 767 GLSL_VERSION("320 es"); 768 if (_mesa_is_gles31(ctx) || ctx->Extensions.ARB_ES3_1_compatibility) 769 GLSL_VERSION("310 es"); 770 if (_mesa_is_gles3(ctx) || ctx->Extensions.ARB_ES3_compatibility) 771 GLSL_VERSION("300 es"); 772 if (ctx->API == API_OPENGLES2 || ctx->Extensions.ARB_ES2_compatibility) 773 GLSL_VERSION("100"); 774 775#undef GLSL_VERSION 776 777 return n; 778} 779