1 /* 2 * Mesa 3-D graphics library 3 * 4 * Copyright (C) 2010 LunarG Inc. 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 OR 17 * 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 OTHER 20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 21 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 22 * DEALINGS IN THE SOFTWARE. 23 * 24 * Authors: 25 * Chia-I Wu <olv (at) lunarg.com> 26 */ 27 28 #include "main/mtypes.h" 29 #include "main/extensions.h" 30 #include "main/context.h" 31 #include "main/debug_output.h" 32 #include "main/glthread.h" 33 #include "main/texobj.h" 34 #include "main/teximage.h" 35 #include "main/texstate.h" 36 #include "main/errors.h" 37 #include "main/framebuffer.h" 38 #include "main/fbobject.h" 39 #include "main/renderbuffer.h" 40 #include "main/version.h" 41 #include "util/hash_table.h" 42 #include "st_texture.h" 43 44 #include "st_context.h" 45 #include "st_debug.h" 46 #include "st_extensions.h" 47 #include "st_format.h" 48 #include "st_cb_bitmap.h" 49 #include "st_cb_fbo.h" 50 #include "st_cb_flush.h" 51 #include "st_manager.h" 52 #include "st_sampler_view.h" 53 54 #include "state_tracker/st_gl_api.h" 55 56 #include "pipe/p_context.h" 57 #include "pipe/p_screen.h" 58 #include "util/u_format.h" 59 #include "util/u_pointer.h" 60 #include "util/u_inlines.h" 61 #include "util/u_atomic.h" 62 #include "util/u_surface.h" 63 #include "util/list.h" 64 65 struct hash_table; 66 struct st_manager_private 67 { 68 struct hash_table *stfbi_ht; /* framebuffer iface objects hash table */ 69 mtx_t st_mutex; 70 }; 71 72 73 /** 74 * Map an attachment to a buffer index. 75 */ 76 static inline gl_buffer_index 77 attachment_to_buffer_index(enum st_attachment_type statt) 78 { 79 gl_buffer_index index; 80 81 switch (statt) { 82 case ST_ATTACHMENT_FRONT_LEFT: 83 index = BUFFER_FRONT_LEFT; 84 break; 85 case ST_ATTACHMENT_BACK_LEFT: 86 index = BUFFER_BACK_LEFT; 87 break; 88 case ST_ATTACHMENT_FRONT_RIGHT: 89 index = BUFFER_FRONT_RIGHT; 90 break; 91 case ST_ATTACHMENT_BACK_RIGHT: 92 index = BUFFER_BACK_RIGHT; 93 break; 94 case ST_ATTACHMENT_DEPTH_STENCIL: 95 index = BUFFER_DEPTH; 96 break; 97 case ST_ATTACHMENT_ACCUM: 98 index = BUFFER_ACCUM; 99 break; 100 case ST_ATTACHMENT_SAMPLE: 101 default: 102 index = BUFFER_COUNT; 103 break; 104 } 105 106 return index; 107 } 108 109 110 /** 111 * Map a buffer index to an attachment. 112 */ 113 static inline enum st_attachment_type 114 buffer_index_to_attachment(gl_buffer_index index) 115 { 116 enum st_attachment_type statt; 117 118 switch (index) { 119 case BUFFER_FRONT_LEFT: 120 statt = ST_ATTACHMENT_FRONT_LEFT; 121 break; 122 case BUFFER_BACK_LEFT: 123 statt = ST_ATTACHMENT_BACK_LEFT; 124 break; 125 case BUFFER_FRONT_RIGHT: 126 statt = ST_ATTACHMENT_FRONT_RIGHT; 127 break; 128 case BUFFER_BACK_RIGHT: 129 statt = ST_ATTACHMENT_BACK_RIGHT; 130 break; 131 case BUFFER_DEPTH: 132 statt = ST_ATTACHMENT_DEPTH_STENCIL; 133 break; 134 case BUFFER_ACCUM: 135 statt = ST_ATTACHMENT_ACCUM; 136 break; 137 default: 138 statt = ST_ATTACHMENT_INVALID; 139 break; 140 } 141 142 return statt; 143 } 144 145 146 /** 147 * Make sure a context picks up the latest cached state of the 148 * drawables it binds to. 149 */ 150 static void 151 st_context_validate(struct st_context *st, 152 struct st_framebuffer *stdraw, 153 struct st_framebuffer *stread) 154 { 155 if (stdraw && stdraw->stamp != st->draw_stamp) { 156 st->dirty |= ST_NEW_FRAMEBUFFER; 157 _mesa_resize_framebuffer(st->ctx, &stdraw->Base, 158 stdraw->Base.Width, 159 stdraw->Base.Height); 160 st->draw_stamp = stdraw->stamp; 161 } 162 163 if (stread && stread->stamp != st->read_stamp) { 164 if (stread != stdraw) { 165 st->dirty |= ST_NEW_FRAMEBUFFER; 166 _mesa_resize_framebuffer(st->ctx, &stread->Base, 167 stread->Base.Width, 168 stread->Base.Height); 169 } 170 st->read_stamp = stread->stamp; 171 } 172 } 173 174 175 /** 176 * Validate a framebuffer to make sure up-to-date pipe_textures are used. 177 * The context is only used for creating pipe surfaces and for calling 178 * _mesa_resize_framebuffer(). 179 * (That should probably be rethought, since those surfaces become 180 * drawable state, not context state, and can be freed by another pipe 181 * context). 182 */ 183 static void 184 st_framebuffer_validate(struct st_framebuffer *stfb, 185 struct st_context *st) 186 { 187 struct pipe_resource *textures[ST_ATTACHMENT_COUNT]; 188 uint width, height; 189 unsigned i; 190 boolean changed = FALSE; 191 int32_t new_stamp; 192 193 new_stamp = p_atomic_read(&stfb->iface->stamp); 194 if (stfb->iface_stamp == new_stamp) 195 return; 196 197 memset(textures, 0, stfb->num_statts * sizeof(textures[0])); 198 199 /* validate the fb */ 200 do { 201 if (!stfb->iface->validate(&st->iface, stfb->iface, stfb->statts, 202 stfb->num_statts, textures)) 203 return; 204 205 stfb->iface_stamp = new_stamp; 206 new_stamp = p_atomic_read(&stfb->iface->stamp); 207 } while(stfb->iface_stamp != new_stamp); 208 209 width = stfb->Base.Width; 210 height = stfb->Base.Height; 211 212 for (i = 0; i < stfb->num_statts; i++) { 213 struct st_renderbuffer *strb; 214 struct pipe_surface *ps, surf_tmpl; 215 gl_buffer_index idx; 216 217 if (!textures[i]) 218 continue; 219 220 idx = attachment_to_buffer_index(stfb->statts[i]); 221 if (idx >= BUFFER_COUNT) { 222 pipe_resource_reference(&textures[i], NULL); 223 continue; 224 } 225 226 strb = st_renderbuffer(stfb->Base.Attachment[idx].Renderbuffer); 227 assert(strb); 228 if (strb->texture == textures[i]) { 229 pipe_resource_reference(&textures[i], NULL); 230 continue; 231 } 232 233 u_surface_default_template(&surf_tmpl, textures[i]); 234 ps = st->pipe->create_surface(st->pipe, textures[i], &surf_tmpl); 235 if (ps) { 236 struct pipe_surface **psurf = 237 util_format_is_srgb(ps->format) ? &strb->surface_srgb : 238 &strb->surface_linear; 239 240 pipe_surface_reference(psurf, ps); 241 strb->surface = *psurf; 242 pipe_resource_reference(&strb->texture, ps->texture); 243 /* ownership transfered */ 244 pipe_surface_reference(&ps, NULL); 245 246 changed = TRUE; 247 248 strb->Base.Width = strb->surface->width; 249 strb->Base.Height = strb->surface->height; 250 251 width = strb->Base.Width; 252 height = strb->Base.Height; 253 } 254 255 pipe_resource_reference(&textures[i], NULL); 256 } 257 258 if (changed) { 259 ++stfb->stamp; 260 _mesa_resize_framebuffer(st->ctx, &stfb->Base, width, height); 261 } 262 } 263 264 265 /** 266 * Update the attachments to validate by looping the existing renderbuffers. 267 */ 268 static void 269 st_framebuffer_update_attachments(struct st_framebuffer *stfb) 270 { 271 gl_buffer_index idx; 272 273 stfb->num_statts = 0; 274 for (idx = 0; idx < BUFFER_COUNT; idx++) { 275 struct st_renderbuffer *strb; 276 enum st_attachment_type statt; 277 278 strb = st_renderbuffer(stfb->Base.Attachment[idx].Renderbuffer); 279 if (!strb || strb->software) 280 continue; 281 282 statt = buffer_index_to_attachment(idx); 283 if (statt != ST_ATTACHMENT_INVALID && 284 st_visual_have_buffers(stfb->iface->visual, 1 << statt)) 285 stfb->statts[stfb->num_statts++] = statt; 286 } 287 stfb->stamp++; 288 } 289 290 291 /** 292 * Add a renderbuffer to the framebuffer. The framebuffer is one that 293 * corresponds to a window and is not a user-created FBO. 294 */ 295 static boolean 296 st_framebuffer_add_renderbuffer(struct st_framebuffer *stfb, 297 gl_buffer_index idx) 298 { 299 struct gl_renderbuffer *rb; 300 enum pipe_format format; 301 boolean sw; 302 303 assert(_mesa_is_winsys_fbo(&stfb->Base)); 304 305 /* do not distinguish depth/stencil buffers */ 306 if (idx == BUFFER_STENCIL) 307 idx = BUFFER_DEPTH; 308 309 switch (idx) { 310 case BUFFER_DEPTH: 311 format = stfb->iface->visual->depth_stencil_format; 312 sw = FALSE; 313 break; 314 case BUFFER_ACCUM: 315 format = stfb->iface->visual->accum_format; 316 sw = TRUE; 317 break; 318 default: 319 format = stfb->iface->visual->color_format; 320 if (stfb->Base.Visual.sRGBCapable) 321 format = util_format_srgb(format); 322 sw = FALSE; 323 break; 324 } 325 326 if (format == PIPE_FORMAT_NONE) 327 return FALSE; 328 329 rb = st_new_renderbuffer_fb(format, stfb->iface->visual->samples, sw); 330 if (!rb) 331 return FALSE; 332 333 if (idx != BUFFER_DEPTH) { 334 _mesa_attach_and_own_rb(&stfb->Base, idx, rb); 335 return TRUE; 336 } 337 338 bool rb_ownership_taken = false; 339 if (util_format_get_component_bits(format, UTIL_FORMAT_COLORSPACE_ZS, 0)) { 340 _mesa_attach_and_own_rb(&stfb->Base, BUFFER_DEPTH, rb); 341 rb_ownership_taken = true; 342 } 343 344 if (util_format_get_component_bits(format, UTIL_FORMAT_COLORSPACE_ZS, 1)) { 345 if (rb_ownership_taken) 346 _mesa_attach_and_reference_rb(&stfb->Base, BUFFER_STENCIL, rb); 347 else 348 _mesa_attach_and_own_rb(&stfb->Base, BUFFER_STENCIL, rb); 349 } 350 351 return TRUE; 352 } 353 354 355 /** 356 * Intialize a struct gl_config from a visual. 357 */ 358 static void 359 st_visual_to_context_mode(const struct st_visual *visual, 360 struct gl_config *mode) 361 { 362 memset(mode, 0, sizeof(*mode)); 363 364 if (st_visual_have_buffers(visual, ST_ATTACHMENT_BACK_LEFT_MASK)) 365 mode->doubleBufferMode = GL_TRUE; 366 367 if (st_visual_have_buffers(visual, 368 ST_ATTACHMENT_FRONT_RIGHT_MASK | ST_ATTACHMENT_BACK_RIGHT_MASK)) 369 mode->stereoMode = GL_TRUE; 370 371 if (visual->color_format != PIPE_FORMAT_NONE) { 372 mode->rgbMode = GL_TRUE; 373 374 mode->redBits = 375 util_format_get_component_bits(visual->color_format, 376 UTIL_FORMAT_COLORSPACE_RGB, 0); 377 mode->greenBits = 378 util_format_get_component_bits(visual->color_format, 379 UTIL_FORMAT_COLORSPACE_RGB, 1); 380 mode->blueBits = 381 util_format_get_component_bits(visual->color_format, 382 UTIL_FORMAT_COLORSPACE_RGB, 2); 383 mode->alphaBits = 384 util_format_get_component_bits(visual->color_format, 385 UTIL_FORMAT_COLORSPACE_RGB, 3); 386 387 mode->rgbBits = mode->redBits + 388 mode->greenBits + mode->blueBits + mode->alphaBits; 389 mode->sRGBCapable = util_format_is_srgb(visual->color_format); 390 } 391 392 if (visual->depth_stencil_format != PIPE_FORMAT_NONE) { 393 mode->depthBits = 394 util_format_get_component_bits(visual->depth_stencil_format, 395 UTIL_FORMAT_COLORSPACE_ZS, 0); 396 mode->stencilBits = 397 util_format_get_component_bits(visual->depth_stencil_format, 398 UTIL_FORMAT_COLORSPACE_ZS, 1); 399 400 mode->haveDepthBuffer = mode->depthBits > 0; 401 mode->haveStencilBuffer = mode->stencilBits > 0; 402 } 403 404 if (visual->accum_format != PIPE_FORMAT_NONE) { 405 mode->haveAccumBuffer = GL_TRUE; 406 407 mode->accumRedBits = 408 util_format_get_component_bits(visual->accum_format, 409 UTIL_FORMAT_COLORSPACE_RGB, 0); 410 mode->accumGreenBits = 411 util_format_get_component_bits(visual->accum_format, 412 UTIL_FORMAT_COLORSPACE_RGB, 1); 413 mode->accumBlueBits = 414 util_format_get_component_bits(visual->accum_format, 415 UTIL_FORMAT_COLORSPACE_RGB, 2); 416 mode->accumAlphaBits = 417 util_format_get_component_bits(visual->accum_format, 418 UTIL_FORMAT_COLORSPACE_RGB, 3); 419 } 420 421 if (visual->samples > 1) { 422 mode->sampleBuffers = 1; 423 mode->samples = visual->samples; 424 } 425 } 426 427 428 /** 429 * Create a framebuffer from a manager interface. 430 */ 431 static struct st_framebuffer * 432 st_framebuffer_create(struct st_context *st, 433 struct st_framebuffer_iface *stfbi) 434 { 435 struct st_framebuffer *stfb; 436 struct gl_config mode; 437 gl_buffer_index idx; 438 439 if (!stfbi) 440 return NULL; 441 442 stfb = CALLOC_STRUCT(st_framebuffer); 443 if (!stfb) 444 return NULL; 445 446 st_visual_to_context_mode(stfbi->visual, &mode); 447 448 /* 449 * For desktop GL, sRGB framebuffer write is controlled by both the 450 * capability of the framebuffer and GL_FRAMEBUFFER_SRGB. We should 451 * advertise the capability when the pipe driver (and core Mesa) supports 452 * it so that applications can enable sRGB write when they want to. 453 * 454 * This is not to be confused with GLX_FRAMEBUFFER_SRGB_CAPABLE_ARB. When 455 * the attribute is GLX_TRUE, it tells the st manager to pick a color 456 * format such that util_format_srgb(visual->color_format) can be supported 457 * by the pipe driver. We still need to advertise the capability here. 458 * 459 * For GLES, however, sRGB framebuffer write is controlled only by the 460 * capability of the framebuffer. There is GL_EXT_sRGB_write_control to 461 * give applications the control back, but sRGB write is still enabled by 462 * default. To avoid unexpected results, we should not advertise the 463 * capability. This could change when we add support for 464 * EGL_KHR_gl_colorspace. 465 */ 466 if (_mesa_is_desktop_gl(st->ctx)) { 467 struct pipe_screen *screen = st->pipe->screen; 468 const enum pipe_format srgb_format = 469 util_format_srgb(stfbi->visual->color_format); 470 471 if (srgb_format != PIPE_FORMAT_NONE && 472 st_pipe_format_to_mesa_format(srgb_format) != MESA_FORMAT_NONE && 473 screen->is_format_supported(screen, srgb_format, 474 PIPE_TEXTURE_2D, stfbi->visual->samples, 475 (PIPE_BIND_DISPLAY_TARGET | 476 PIPE_BIND_RENDER_TARGET))) 477 mode.sRGBCapable = GL_TRUE; 478 } 479 480 _mesa_initialize_window_framebuffer(&stfb->Base, &mode); 481 482 stfb->iface = stfbi; 483 stfb->iface_ID = stfbi->ID; 484 stfb->iface_stamp = p_atomic_read(&stfbi->stamp) - 1; 485 486 /* add the color buffer */ 487 idx = stfb->Base._ColorDrawBufferIndexes[0]; 488 if (!st_framebuffer_add_renderbuffer(stfb, idx)) { 489 free(stfb); 490 return NULL; 491 } 492 493 st_framebuffer_add_renderbuffer(stfb, BUFFER_DEPTH); 494 st_framebuffer_add_renderbuffer(stfb, BUFFER_ACCUM); 495 496 stfb->stamp = 0; 497 st_framebuffer_update_attachments(stfb); 498 499 return stfb; 500 } 501 502 503 /** 504 * Reference a framebuffer. 505 */ 506 void 507 st_framebuffer_reference(struct st_framebuffer **ptr, 508 struct st_framebuffer *stfb) 509 { 510 struct gl_framebuffer *fb = &stfb->Base; 511 _mesa_reference_framebuffer((struct gl_framebuffer **) ptr, fb); 512 } 513 514 515 static uint32_t 516 st_framebuffer_iface_hash(const void *key) 517 { 518 return (uintptr_t)key; 519 } 520 521 522 static bool 523 st_framebuffer_iface_equal(const void *a, const void *b) 524 { 525 return (struct st_framebuffer_iface *)a == (struct st_framebuffer_iface *)b; 526 } 527 528 529 static boolean 530 st_framebuffer_iface_lookup(struct st_manager *smapi, 531 const struct st_framebuffer_iface *stfbi) 532 { 533 struct st_manager_private *smPriv = 534 (struct st_manager_private *)smapi->st_manager_private; 535 struct hash_entry *entry; 536 537 assert(smPriv); 538 assert(smPriv->stfbi_ht); 539 540 mtx_lock(&smPriv->st_mutex); 541 entry = _mesa_hash_table_search(smPriv->stfbi_ht, stfbi); 542 mtx_unlock(&smPriv->st_mutex); 543 544 return entry != NULL; 545 } 546 547 548 static boolean 549 st_framebuffer_iface_insert(struct st_manager *smapi, 550 struct st_framebuffer_iface *stfbi) 551 { 552 struct st_manager_private *smPriv = 553 (struct st_manager_private *)smapi->st_manager_private; 554 struct hash_entry *entry; 555 556 assert(smPriv); 557 assert(smPriv->stfbi_ht); 558 559 mtx_lock(&smPriv->st_mutex); 560 entry = _mesa_hash_table_insert(smPriv->stfbi_ht, stfbi, stfbi); 561 mtx_unlock(&smPriv->st_mutex); 562 563 return entry != NULL; 564 } 565 566 567 static void 568 st_framebuffer_iface_remove(struct st_manager *smapi, 569 struct st_framebuffer_iface *stfbi) 570 { 571 struct st_manager_private *smPriv = 572 (struct st_manager_private *)smapi->st_manager_private; 573 struct hash_entry *entry; 574 575 if (!smPriv || !smPriv->stfbi_ht) 576 return; 577 578 mtx_lock(&smPriv->st_mutex); 579 entry = _mesa_hash_table_search(smPriv->stfbi_ht, stfbi); 580 if (!entry) 581 goto unlock; 582 583 _mesa_hash_table_remove(smPriv->stfbi_ht, entry); 584 585 unlock: 586 mtx_unlock(&smPriv->st_mutex); 587 } 588 589 590 /** 591 * The framebuffer interface object is no longer valid. 592 * Remove the object from the framebuffer interface hash table. 593 */ 594 static void 595 st_api_destroy_drawable(struct st_api *stapi, 596 struct st_framebuffer_iface *stfbi) 597 { 598 if (!stfbi) 599 return; 600 601 st_framebuffer_iface_remove(stfbi->state_manager, stfbi); 602 } 603 604 605 /** 606 * Purge the winsys buffers list to remove any references to 607 * non-existing framebuffer interface objects. 608 */ 609 static void 610 st_framebuffers_purge(struct st_context *st) 611 { 612 struct st_context_iface *st_iface = &st->iface; 613 struct st_manager *smapi = st_iface->state_manager; 614 struct st_framebuffer *stfb, *next; 615 616 assert(smapi); 617 618 LIST_FOR_EACH_ENTRY_SAFE_REV(stfb, next, &st->winsys_buffers, head) { 619 struct st_framebuffer_iface *stfbi = stfb->iface; 620 621 assert(stfbi); 622 623 /** 624 * If the corresponding framebuffer interface object no longer exists, 625 * remove the framebuffer object from the context's winsys buffers list, 626 * and unreference the framebuffer object, so its resources can be 627 * deleted. 628 */ 629 if (!st_framebuffer_iface_lookup(smapi, stfbi)) { 630 LIST_DEL(&stfb->head); 631 st_framebuffer_reference(&stfb, NULL); 632 } 633 } 634 } 635 636 637 static void 638 st_context_flush(struct st_context_iface *stctxi, unsigned flags, 639 struct pipe_fence_handle **fence) 640 { 641 struct st_context *st = (struct st_context *) stctxi; 642 unsigned pipe_flags = 0; 643 644 if (flags & ST_FLUSH_END_OF_FRAME) 645 pipe_flags |= PIPE_FLUSH_END_OF_FRAME; 646 if (flags & ST_FLUSH_FENCE_FD) 647 pipe_flags |= PIPE_FLUSH_FENCE_FD; 648 649 FLUSH_VERTICES(st->ctx, 0); 650 FLUSH_CURRENT(st->ctx, 0); 651 st_flush(st, fence, pipe_flags); 652 653 if ((flags & ST_FLUSH_WAIT) && fence && *fence) { 654 st->pipe->screen->fence_finish(st->pipe->screen, NULL, *fence, 655 PIPE_TIMEOUT_INFINITE); 656 st->pipe->screen->fence_reference(st->pipe->screen, fence, NULL); 657 } 658 659 if (flags & ST_FLUSH_FRONT) 660 st_manager_flush_frontbuffer(st); 661 662 /* DRI3 changes the framebuffer after SwapBuffers, but we need to invoke 663 * st_manager_validate_framebuffers to notice that. 664 * 665 * Set gfx_shaders_may_be_dirty to invoke st_validate_state in the next 666 * draw call, which will invoke st_manager_validate_framebuffers, but it 667 * won't dirty states if there is no change. 668 */ 669 if (flags & ST_FLUSH_END_OF_FRAME) 670 st->gfx_shaders_may_be_dirty = true; 671 } 672 673 static boolean 674 st_context_teximage(struct st_context_iface *stctxi, 675 enum st_texture_type tex_type, 676 int level, enum pipe_format pipe_format, 677 struct pipe_resource *tex, boolean mipmap) 678 { 679 struct st_context *st = (struct st_context *) stctxi; 680 struct gl_context *ctx = st->ctx; 681 struct gl_texture_object *texObj; 682 struct gl_texture_image *texImage; 683 struct st_texture_object *stObj; 684 struct st_texture_image *stImage; 685 GLenum internalFormat; 686 GLuint width, height, depth; 687 GLenum target; 688 689 switch (tex_type) { 690 case ST_TEXTURE_1D: 691 target = GL_TEXTURE_1D; 692 break; 693 case ST_TEXTURE_2D: 694 target = GL_TEXTURE_2D; 695 break; 696 case ST_TEXTURE_3D: 697 target = GL_TEXTURE_3D; 698 break; 699 case ST_TEXTURE_RECT: 700 target = GL_TEXTURE_RECTANGLE_ARB; 701 break; 702 default: 703 return FALSE; 704 } 705 706 texObj = _mesa_get_current_tex_object(ctx, target); 707 708 _mesa_lock_texture(ctx, texObj); 709 710 stObj = st_texture_object(texObj); 711 /* switch to surface based */ 712 if (!stObj->surface_based) { 713 _mesa_clear_texture_object(ctx, texObj, NULL); 714 stObj->surface_based = GL_TRUE; 715 } 716 717 texImage = _mesa_get_tex_image(ctx, texObj, target, level); 718 stImage = st_texture_image(texImage); 719 if (tex) { 720 mesa_format texFormat = st_pipe_format_to_mesa_format(pipe_format); 721 722 if (util_format_has_alpha(tex->format)) 723 internalFormat = GL_RGBA; 724 else 725 internalFormat = GL_RGB; 726 727 _mesa_init_teximage_fields(ctx, texImage, 728 tex->width0, tex->height0, 1, 0, 729 internalFormat, texFormat); 730 731 width = tex->width0; 732 height = tex->height0; 733 depth = tex->depth0; 734 735 /* grow the image size until we hit level = 0 */ 736 while (level > 0) { 737 if (width != 1) 738 width <<= 1; 739 if (height != 1) 740 height <<= 1; 741 if (depth != 1) 742 depth <<= 1; 743 level--; 744 } 745 } 746 else { 747 _mesa_clear_texture_image(ctx, texImage); 748 width = height = depth = 0; 749 } 750 751 pipe_resource_reference(&stObj->pt, tex); 752 st_texture_release_all_sampler_views(st, stObj); 753 pipe_resource_reference(&stImage->pt, tex); 754 stObj->surface_format = pipe_format; 755 756 stObj->needs_validation = true; 757 758 _mesa_dirty_texobj(ctx, texObj); 759 _mesa_unlock_texture(ctx, texObj); 760 761 return TRUE; 762 } 763 764 765 static void 766 st_context_copy(struct st_context_iface *stctxi, 767 struct st_context_iface *stsrci, unsigned mask) 768 { 769 struct st_context *st = (struct st_context *) stctxi; 770 struct st_context *src = (struct st_context *) stsrci; 771 772 _mesa_copy_context(src->ctx, st->ctx, mask); 773 } 774 775 776 static boolean 777 st_context_share(struct st_context_iface *stctxi, 778 struct st_context_iface *stsrci) 779 { 780 struct st_context *st = (struct st_context *) stctxi; 781 struct st_context *src = (struct st_context *) stsrci; 782 783 return _mesa_share_state(st->ctx, src->ctx); 784 } 785 786 787 static void 788 st_context_destroy(struct st_context_iface *stctxi) 789 { 790 struct st_context *st = (struct st_context *) stctxi; 791 st_destroy_context(st); 792 } 793 794 795 static void 796 st_start_thread(struct st_context_iface *stctxi) 797 { 798 struct st_context *st = (struct st_context *) stctxi; 799 800 _mesa_glthread_init(st->ctx); 801 } 802 803 804 static void 805 st_thread_finish(struct st_context_iface *stctxi) 806 { 807 struct st_context *st = (struct st_context *) stctxi; 808 809 _mesa_glthread_finish(st->ctx); 810 } 811 812 813 static void 814 st_manager_destroy(struct st_manager *smapi) 815 { 816 struct st_manager_private *smPriv = smapi->st_manager_private; 817 818 if (smPriv && smPriv->stfbi_ht) { 819 _mesa_hash_table_destroy(smPriv->stfbi_ht, NULL); 820 mtx_destroy(&smPriv->st_mutex); 821 free(smPriv); 822 smapi->st_manager_private = NULL; 823 } 824 } 825 826 827 static struct st_context_iface * 828 st_api_create_context(struct st_api *stapi, struct st_manager *smapi, 829 const struct st_context_attribs *attribs, 830 enum st_context_error *error, 831 struct st_context_iface *shared_stctxi) 832 { 833 struct st_context *shared_ctx = (struct st_context *) shared_stctxi; 834 struct st_context *st; 835 struct pipe_context *pipe; 836 struct gl_config mode; 837 gl_api api; 838 bool no_error = false; 839 unsigned ctx_flags = PIPE_CONTEXT_PREFER_THREADED; 840 841 if (!(stapi->profile_mask & (1 << attribs->profile))) 842 return NULL; 843 844 switch (attribs->profile) { 845 case ST_PROFILE_DEFAULT: 846 api = API_OPENGL_COMPAT; 847 break; 848 case ST_PROFILE_OPENGL_ES1: 849 api = API_OPENGLES; 850 break; 851 case ST_PROFILE_OPENGL_ES2: 852 api = API_OPENGLES2; 853 break; 854 case ST_PROFILE_OPENGL_CORE: 855 api = API_OPENGL_CORE; 856 break; 857 default: 858 *error = ST_CONTEXT_ERROR_BAD_API; 859 return NULL; 860 } 861 862 /* Create a hash table for the framebuffer interface objects 863 * if it has not been created for this st manager. 864 */ 865 if (smapi->st_manager_private == NULL) { 866 struct st_manager_private *smPriv; 867 868 smPriv = CALLOC_STRUCT(st_manager_private); 869 mtx_init(&smPriv->st_mutex, mtx_plain); 870 smPriv->stfbi_ht = _mesa_hash_table_create(NULL, 871 st_framebuffer_iface_hash, 872 st_framebuffer_iface_equal); 873 smapi->st_manager_private = smPriv; 874 smapi->destroy = st_manager_destroy; 875 } 876 877 if (attribs->flags & ST_CONTEXT_FLAG_ROBUST_ACCESS) 878 ctx_flags |= PIPE_CONTEXT_ROBUST_BUFFER_ACCESS; 879 880 if (attribs->flags & ST_CONTEXT_FLAG_NO_ERROR) 881 no_error = true; 882 883 if (attribs->flags & ST_CONTEXT_FLAG_LOW_PRIORITY) 884 ctx_flags |= PIPE_CONTEXT_LOW_PRIORITY; 885 else if (attribs->flags & ST_CONTEXT_FLAG_HIGH_PRIORITY) 886 ctx_flags |= PIPE_CONTEXT_HIGH_PRIORITY; 887 888 pipe = smapi->screen->context_create(smapi->screen, NULL, ctx_flags); 889 if (!pipe) { 890 *error = ST_CONTEXT_ERROR_NO_MEMORY; 891 return NULL; 892 } 893 894 st_visual_to_context_mode(&attribs->visual, &mode); 895 st = st_create_context(api, pipe, &mode, shared_ctx, 896 &attribs->options, no_error); 897 if (!st) { 898 *error = ST_CONTEXT_ERROR_NO_MEMORY; 899 pipe->destroy(pipe); 900 return NULL; 901 } 902 903 if (attribs->flags & ST_CONTEXT_FLAG_DEBUG) { 904 if (!_mesa_set_debug_state_int(st->ctx, GL_DEBUG_OUTPUT, GL_TRUE)) { 905 *error = ST_CONTEXT_ERROR_NO_MEMORY; 906 return NULL; 907 } 908 909 st->ctx->Const.ContextFlags |= GL_CONTEXT_FLAG_DEBUG_BIT; 910 } 911 912 if (st->ctx->Const.ContextFlags & GL_CONTEXT_FLAG_DEBUG_BIT) { 913 st_update_debug_callback(st); 914 } 915 916 if (attribs->flags & ST_CONTEXT_FLAG_FORWARD_COMPATIBLE) 917 st->ctx->Const.ContextFlags |= GL_CONTEXT_FLAG_FORWARD_COMPATIBLE_BIT; 918 if (attribs->flags & ST_CONTEXT_FLAG_ROBUST_ACCESS) { 919 st->ctx->Const.ContextFlags |= GL_CONTEXT_FLAG_ROBUST_ACCESS_BIT_ARB; 920 st->ctx->Const.RobustAccess = GL_TRUE; 921 } 922 if (attribs->flags & ST_CONTEXT_FLAG_RESET_NOTIFICATION_ENABLED) { 923 st->ctx->Const.ResetStrategy = GL_LOSE_CONTEXT_ON_RESET_ARB; 924 st_install_device_reset_callback(st); 925 } 926 927 if (attribs->flags & ST_CONTEXT_FLAG_RELEASE_NONE) 928 st->ctx->Const.ContextReleaseBehavior = GL_NONE; 929 930 /* need to perform version check */ 931 if (attribs->major > 1 || attribs->minor > 0) { 932 /* Is the actual version less than the requested version? 933 */ 934 if (st->ctx->Version < attribs->major * 10U + attribs->minor) { 935 *error = ST_CONTEXT_ERROR_BAD_VERSION; 936 st_destroy_context(st); 937 return NULL; 938 } 939 } 940 941 st->invalidate_on_gl_viewport = 942 smapi->get_param(smapi, ST_MANAGER_BROKEN_INVALIDATE); 943 944 st->iface.destroy = st_context_destroy; 945 st->iface.flush = st_context_flush; 946 st->iface.teximage = st_context_teximage; 947 st->iface.copy = st_context_copy; 948 st->iface.share = st_context_share; 949 st->iface.start_thread = st_start_thread; 950 st->iface.thread_finish = st_thread_finish; 951 st->iface.st_context_private = (void *) smapi; 952 st->iface.cso_context = st->cso_context; 953 st->iface.pipe = st->pipe; 954 st->iface.state_manager = smapi; 955 956 *error = ST_CONTEXT_SUCCESS; 957 return &st->iface; 958 } 959 960 961 static struct st_context_iface * 962 st_api_get_current(struct st_api *stapi) 963 { 964 GET_CURRENT_CONTEXT(ctx); 965 struct st_context *st = ctx ? ctx->st : NULL; 966 967 return st ? &st->iface : NULL; 968 } 969 970 971 static struct st_framebuffer * 972 st_framebuffer_reuse_or_create(struct st_context *st, 973 struct gl_framebuffer *fb, 974 struct st_framebuffer_iface *stfbi) 975 { 976 struct st_framebuffer *cur = NULL, *stfb = NULL; 977 978 if (!stfbi) 979 return NULL; 980 981 /* Check if there is already a framebuffer object for the specified 982 * framebuffer interface in this context. If there is one, use it. 983 */ 984 LIST_FOR_EACH_ENTRY(cur, &st->winsys_buffers, head) { 985 if (cur->iface_ID == stfbi->ID) { 986 st_framebuffer_reference(&stfb, cur); 987 break; 988 } 989 } 990 991 /* If there is not already a framebuffer object, create one */ 992 if (stfb == NULL) { 993 cur = st_framebuffer_create(st, stfbi); 994 995 if (cur) { 996 /* add the referenced framebuffer interface object to 997 * the framebuffer interface object hash table. 998 */ 999 if (!st_framebuffer_iface_insert(stfbi->state_manager, stfbi)) { 1000 st_framebuffer_reference(&cur, NULL); 1001 return NULL; 1002 } 1003 1004 /* add to the context's winsys buffers list */ 1005 LIST_ADD(&cur->head, &st->winsys_buffers); 1006 1007 st_framebuffer_reference(&stfb, cur); 1008 } 1009 } 1010 1011 return stfb; 1012 } 1013 1014 1015 static boolean 1016 st_api_make_current(struct st_api *stapi, struct st_context_iface *stctxi, 1017 struct st_framebuffer_iface *stdrawi, 1018 struct st_framebuffer_iface *streadi) 1019 { 1020 struct st_context *st = (struct st_context *) stctxi; 1021 struct st_framebuffer *stdraw, *stread; 1022 boolean ret; 1023 1024 _glapi_check_multithread(); 1025 1026 if (st) { 1027 /* reuse or create the draw fb */ 1028 stdraw = st_framebuffer_reuse_or_create(st, 1029 st->ctx->WinSysDrawBuffer, stdrawi); 1030 if (streadi != stdrawi) { 1031 /* do the same for the read fb */ 1032 stread = st_framebuffer_reuse_or_create(st, 1033 st->ctx->WinSysReadBuffer, streadi); 1034 } 1035 else { 1036 stread = NULL; 1037 /* reuse the draw fb for the read fb */ 1038 if (stdraw) 1039 st_framebuffer_reference(&stread, stdraw); 1040 } 1041 1042 if (stdraw && stread) { 1043 st_framebuffer_validate(stdraw, st); 1044 if (stread != stdraw) 1045 st_framebuffer_validate(stread, st); 1046 1047 ret = _mesa_make_current(st->ctx, &stdraw->Base, &stread->Base); 1048 1049 st->draw_stamp = stdraw->stamp - 1; 1050 st->read_stamp = stread->stamp - 1; 1051 st_context_validate(st, stdraw, stread); 1052 } 1053 else { 1054 struct gl_framebuffer *incomplete = _mesa_get_incomplete_framebuffer(); 1055 ret = _mesa_make_current(st->ctx, incomplete, incomplete); 1056 } 1057 1058 st_framebuffer_reference(&stdraw, NULL); 1059 st_framebuffer_reference(&stread, NULL); 1060 1061 /* Purge the context's winsys_buffers list in case any 1062 * of the referenced drawables no longer exist. 1063 */ 1064 st_framebuffers_purge(st); 1065 } 1066 else { 1067 ret = _mesa_make_current(NULL, NULL, NULL); 1068 } 1069 1070 return ret; 1071 } 1072 1073 1074 static void 1075 st_api_destroy(struct st_api *stapi) 1076 { 1077 } 1078 1079 1080 /** 1081 * Flush the front buffer if the current context renders to the front buffer. 1082 */ 1083 void 1084 st_manager_flush_frontbuffer(struct st_context *st) 1085 { 1086 struct st_framebuffer *stfb = st_ws_framebuffer(st->ctx->DrawBuffer); 1087 struct st_renderbuffer *strb = NULL; 1088 1089 if (stfb) 1090 strb = st_renderbuffer(stfb->Base.Attachment[BUFFER_FRONT_LEFT]. 1091 Renderbuffer); 1092 1093 /* Do we have a front color buffer and has it been drawn to since last 1094 * frontbuffer flush? 1095 */ 1096 if (strb && strb->defined) { 1097 stfb->iface->flush_front(&st->iface, stfb->iface, 1098 ST_ATTACHMENT_FRONT_LEFT); 1099 strb->defined = GL_FALSE; 1100 1101 /* Trigger an update of strb->defined on next draw */ 1102 st->dirty |= ST_NEW_FB_STATE; 1103 } 1104 } 1105 1106 1107 /** 1108 * Re-validate the framebuffers. 1109 */ 1110 void 1111 st_manager_validate_framebuffers(struct st_context *st) 1112 { 1113 struct st_framebuffer *stdraw = st_ws_framebuffer(st->ctx->DrawBuffer); 1114 struct st_framebuffer *stread = st_ws_framebuffer(st->ctx->ReadBuffer); 1115 1116 if (stdraw) 1117 st_framebuffer_validate(stdraw, st); 1118 if (stread && stread != stdraw) 1119 st_framebuffer_validate(stread, st); 1120 1121 st_context_validate(st, stdraw, stread); 1122 } 1123 1124 1125 /** 1126 * Flush any outstanding swapbuffers on the current draw framebuffer. 1127 */ 1128 void 1129 st_manager_flush_swapbuffers(void) 1130 { 1131 GET_CURRENT_CONTEXT(ctx); 1132 struct st_context *st = (ctx) ? ctx->st : NULL; 1133 struct st_framebuffer *stfb; 1134 1135 if (!st) 1136 return; 1137 1138 stfb = st_ws_framebuffer(ctx->DrawBuffer); 1139 if (!stfb || !stfb->iface->flush_swapbuffers) 1140 return; 1141 1142 stfb->iface->flush_swapbuffers(&st->iface, stfb->iface); 1143 } 1144 1145 1146 /** 1147 * Add a color renderbuffer on demand. The FBO must correspond to a window, 1148 * not a user-created FBO. 1149 */ 1150 boolean 1151 st_manager_add_color_renderbuffer(struct st_context *st, 1152 struct gl_framebuffer *fb, 1153 gl_buffer_index idx) 1154 { 1155 struct st_framebuffer *stfb = st_ws_framebuffer(fb); 1156 1157 /* FBO */ 1158 if (!stfb) 1159 return FALSE; 1160 1161 assert(_mesa_is_winsys_fbo(fb)); 1162 1163 if (stfb->Base.Attachment[idx].Renderbuffer) 1164 return TRUE; 1165 1166 switch (idx) { 1167 case BUFFER_FRONT_LEFT: 1168 case BUFFER_BACK_LEFT: 1169 case BUFFER_FRONT_RIGHT: 1170 case BUFFER_BACK_RIGHT: 1171 break; 1172 default: 1173 return FALSE; 1174 } 1175 1176 if (!st_framebuffer_add_renderbuffer(stfb, idx)) 1177 return FALSE; 1178 1179 st_framebuffer_update_attachments(stfb); 1180 1181 /* 1182 * Force a call to the state tracker manager to validate the 1183 * new renderbuffer. It might be that there is a window system 1184 * renderbuffer available. 1185 */ 1186 if (stfb->iface) 1187 stfb->iface_stamp = p_atomic_read(&stfb->iface->stamp) - 1; 1188 1189 st_invalidate_buffers(st); 1190 1191 return TRUE; 1192 } 1193 1194 1195 static unsigned 1196 get_version(struct pipe_screen *screen, 1197 struct st_config_options *options, gl_api api) 1198 { 1199 struct gl_constants consts = {0}; 1200 struct gl_extensions extensions = {0}; 1201 GLuint version; 1202 1203 if (_mesa_override_gl_version_contextless(&consts, &api, &version)) { 1204 return version; 1205 } 1206 1207 _mesa_init_constants(&consts, api); 1208 _mesa_init_extensions(&extensions); 1209 1210 st_init_limits(screen, &consts, &extensions, api); 1211 st_init_extensions(screen, &consts, &extensions, options, api); 1212 1213 return _mesa_get_version(&extensions, &consts, api); 1214 } 1215 1216 1217 static void 1218 st_api_query_versions(struct st_api *stapi, struct st_manager *sm, 1219 struct st_config_options *options, 1220 int *gl_core_version, 1221 int *gl_compat_version, 1222 int *gl_es1_version, 1223 int *gl_es2_version) 1224 { 1225 *gl_core_version = get_version(sm->screen, options, API_OPENGL_CORE); 1226 *gl_compat_version = get_version(sm->screen, options, API_OPENGL_COMPAT); 1227 *gl_es1_version = get_version(sm->screen, options, API_OPENGLES); 1228 *gl_es2_version = get_version(sm->screen, options, API_OPENGLES2); 1229 } 1230 1231 1232 static const struct st_api st_gl_api = { 1233 .name = "Mesa " PACKAGE_VERSION, 1234 .api = ST_API_OPENGL, 1235 .profile_mask = ST_PROFILE_DEFAULT_MASK | 1236 ST_PROFILE_OPENGL_CORE_MASK | 1237 ST_PROFILE_OPENGL_ES1_MASK | 1238 ST_PROFILE_OPENGL_ES2_MASK | 1239 0, 1240 .feature_mask = ST_API_FEATURE_MS_VISUALS_MASK, 1241 .destroy = st_api_destroy, 1242 .query_versions = st_api_query_versions, 1243 .create_context = st_api_create_context, 1244 .make_current = st_api_make_current, 1245 .get_current = st_api_get_current, 1246 .destroy_drawable = st_api_destroy_drawable, 1247 }; 1248 1249 1250 struct st_api * 1251 st_gl_api_create(void) 1252 { 1253 return (struct st_api *) &st_gl_api; 1254 } 1255
