1 /* 2 * Mesa 3-D graphics library 3 * Version: 7.9 4 * 5 * Copyright 2009, VMware, Inc. 6 * All Rights Reserved. 7 * Copyright (C) 2010 LunarG Inc. 8 * 9 * Permission is hereby granted, free of charge, to any person obtaining a 10 * copy of this software and associated documentation files (the "Software"), 11 * to deal in the Software without restriction, including without limitation 12 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 13 * and/or sell copies of the Software, and to permit persons to whom the 14 * Software is furnished to do so, subject to the following conditions: 15 * 16 * The above copyright notice and this permission notice shall be included 17 * in all copies or substantial portions of the Software. 18 * 19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 20 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 21 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 22 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN 23 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 24 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 25 * 26 * Authors: 27 * Keith Whitwell <keithw (at) vmware.com> 28 * Jakob Bornecrantz <wallbraker (at) gmail.com> 29 * Chia-I Wu <olv (at) lunarg.com> 30 */ 31 32 #include "util/u_memory.h" 33 #include "util/u_inlines.h" 34 #include "util/u_format.h" 35 #include "util/u_debug.h" 36 #include "state_tracker/drm_driver.h" 37 38 #include "dri_screen.h" 39 #include "dri_context.h" 40 #include "dri_drawable.h" 41 #include "dri2_buffer.h" 42 43 /** 44 * DRI2 flush extension. 45 */ 46 static void 47 dri2_flush_drawable(__DRIdrawable *dPriv) 48 { 49 struct dri_context *ctx = dri_get_current(dPriv->driScreenPriv); 50 struct dri_drawable *drawable = dri_drawable(dPriv); 51 52 struct pipe_resource *ptex = drawable->textures[ST_ATTACHMENT_BACK_LEFT]; 53 54 if (ctx) { 55 if (ptex && ctx->pp && drawable->textures[ST_ATTACHMENT_DEPTH_STENCIL]) 56 pp_run(ctx->pp, ptex, ptex, drawable->textures[ST_ATTACHMENT_DEPTH_STENCIL]); 57 58 ctx->st->flush(ctx->st, 0, NULL); 59 } 60 } 61 62 static void 63 dri2_invalidate_drawable(__DRIdrawable *dPriv) 64 { 65 struct dri_drawable *drawable = dri_drawable(dPriv); 66 67 dri2InvalidateDrawable(dPriv); 68 drawable->dPriv->lastStamp = drawable->dPriv->dri2.stamp; 69 70 p_atomic_inc(&drawable->base.stamp); 71 } 72 73 static const __DRI2flushExtension dri2FlushExtension = { 74 { __DRI2_FLUSH, __DRI2_FLUSH_VERSION }, 75 dri2_flush_drawable, 76 dri2_invalidate_drawable, 77 }; 78 79 /** 80 * Retrieve __DRIbuffer from the DRI loader. 81 */ 82 static __DRIbuffer * 83 dri2_drawable_get_buffers(struct dri_drawable *drawable, 84 const enum st_attachment_type *statts, 85 unsigned *count) 86 { 87 __DRIdrawable *dri_drawable = drawable->dPriv; 88 struct __DRIdri2LoaderExtensionRec *loader = drawable->sPriv->dri2.loader; 89 boolean with_format; 90 __DRIbuffer *buffers; 91 int num_buffers; 92 unsigned attachments[10]; 93 unsigned num_attachments, i; 94 95 assert(loader); 96 with_format = dri_with_format(drawable->sPriv); 97 98 num_attachments = 0; 99 100 /* for Xserver 1.6.0 (DRI2 version 1) we always need to ask for the front */ 101 if (!with_format) 102 attachments[num_attachments++] = __DRI_BUFFER_FRONT_LEFT; 103 104 for (i = 0; i < *count; i++) { 105 enum pipe_format format; 106 unsigned bind; 107 int att, depth; 108 109 dri_drawable_get_format(drawable, statts[i], &format, &bind); 110 if (format == PIPE_FORMAT_NONE) 111 continue; 112 113 switch (statts[i]) { 114 case ST_ATTACHMENT_FRONT_LEFT: 115 /* already added */ 116 if (!with_format) 117 continue; 118 att = __DRI_BUFFER_FRONT_LEFT; 119 break; 120 case ST_ATTACHMENT_BACK_LEFT: 121 att = __DRI_BUFFER_BACK_LEFT; 122 break; 123 case ST_ATTACHMENT_FRONT_RIGHT: 124 att = __DRI_BUFFER_FRONT_RIGHT; 125 break; 126 case ST_ATTACHMENT_BACK_RIGHT: 127 att = __DRI_BUFFER_BACK_RIGHT; 128 break; 129 case ST_ATTACHMENT_DEPTH_STENCIL: 130 att = __DRI_BUFFER_DEPTH_STENCIL; 131 break; 132 default: 133 att = -1; 134 break; 135 } 136 137 /* 138 * In this switch statement we must support all formats that 139 * may occur as the stvis->color_format or 140 * stvis->depth_stencil_format. 141 */ 142 switch(format) { 143 case PIPE_FORMAT_B8G8R8A8_UNORM: 144 depth = 32; 145 break; 146 case PIPE_FORMAT_B8G8R8X8_UNORM: 147 depth = 24; 148 break; 149 case PIPE_FORMAT_B5G6R5_UNORM: 150 depth = 16; 151 break; 152 case PIPE_FORMAT_Z16_UNORM: 153 att = __DRI_BUFFER_DEPTH; 154 depth = 16; 155 break; 156 case PIPE_FORMAT_Z24X8_UNORM: 157 case PIPE_FORMAT_X8Z24_UNORM: 158 att = __DRI_BUFFER_DEPTH; 159 depth = 24; 160 break; 161 case PIPE_FORMAT_Z24_UNORM_S8_UINT: 162 case PIPE_FORMAT_S8_UINT_Z24_UNORM: 163 depth = 32; 164 break; 165 case PIPE_FORMAT_Z32_UNORM: 166 att = __DRI_BUFFER_DEPTH; 167 depth = 32; 168 break; 169 default: 170 depth = util_format_get_blocksizebits(format); 171 assert(!"Unexpected format in dri2_drawable_get_buffers()"); 172 } 173 174 if (att >= 0) { 175 attachments[num_attachments++] = att; 176 if (with_format) { 177 attachments[num_attachments++] = depth; 178 } 179 } 180 } 181 182 if (with_format) { 183 num_attachments /= 2; 184 buffers = loader->getBuffersWithFormat(dri_drawable, 185 &dri_drawable->w, &dri_drawable->h, 186 attachments, num_attachments, 187 &num_buffers, dri_drawable->loaderPrivate); 188 } 189 else { 190 buffers = loader->getBuffers(dri_drawable, 191 &dri_drawable->w, &dri_drawable->h, 192 attachments, num_attachments, 193 &num_buffers, dri_drawable->loaderPrivate); 194 } 195 196 if (buffers) 197 *count = num_buffers; 198 199 return buffers; 200 } 201 202 /** 203 * Process __DRIbuffer and convert them into pipe_resources. 204 */ 205 static void 206 dri2_drawable_process_buffers(struct dri_drawable *drawable, 207 __DRIbuffer *buffers, unsigned count) 208 { 209 struct dri_screen *screen = dri_screen(drawable->sPriv); 210 __DRIdrawable *dri_drawable = drawable->dPriv; 211 struct pipe_resource templ; 212 struct winsys_handle whandle; 213 boolean have_depth = FALSE; 214 unsigned i, bind; 215 216 if (drawable->old_num == count && 217 drawable->old_w == dri_drawable->w && 218 drawable->old_h == dri_drawable->h && 219 memcmp(drawable->old, buffers, sizeof(__DRIbuffer) * count) == 0) 220 return; 221 222 for (i = 0; i < ST_ATTACHMENT_COUNT; i++) 223 pipe_resource_reference(&drawable->textures[i], NULL); 224 225 memset(&templ, 0, sizeof(templ)); 226 templ.target = screen->target; 227 templ.last_level = 0; 228 templ.width0 = dri_drawable->w; 229 templ.height0 = dri_drawable->h; 230 templ.depth0 = 1; 231 templ.array_size = 1; 232 233 memset(&whandle, 0, sizeof(whandle)); 234 235 for (i = 0; i < count; i++) { 236 __DRIbuffer *buf = &buffers[i]; 237 enum st_attachment_type statt; 238 enum pipe_format format; 239 240 switch (buf->attachment) { 241 case __DRI_BUFFER_FRONT_LEFT: 242 if (!screen->auto_fake_front) { 243 statt = ST_ATTACHMENT_INVALID; 244 break; 245 } 246 /* fallthrough */ 247 case __DRI_BUFFER_FAKE_FRONT_LEFT: 248 statt = ST_ATTACHMENT_FRONT_LEFT; 249 break; 250 case __DRI_BUFFER_BACK_LEFT: 251 statt = ST_ATTACHMENT_BACK_LEFT; 252 break; 253 case __DRI_BUFFER_DEPTH: 254 case __DRI_BUFFER_DEPTH_STENCIL: 255 case __DRI_BUFFER_STENCIL: 256 /* use only the first depth/stencil buffer */ 257 if (!have_depth) { 258 have_depth = TRUE; 259 statt = ST_ATTACHMENT_DEPTH_STENCIL; 260 } 261 else { 262 statt = ST_ATTACHMENT_INVALID; 263 } 264 break; 265 default: 266 statt = ST_ATTACHMENT_INVALID; 267 break; 268 } 269 270 dri_drawable_get_format(drawable, statt, &format, &bind); 271 if (statt == ST_ATTACHMENT_INVALID || format == PIPE_FORMAT_NONE) 272 continue; 273 274 templ.format = format; 275 templ.bind = bind; 276 whandle.handle = buf->name; 277 whandle.stride = buf->pitch; 278 279 drawable->textures[statt] = 280 screen->base.screen->resource_from_handle(screen->base.screen, 281 &templ, &whandle); 282 } 283 284 drawable->old_num = count; 285 drawable->old_w = dri_drawable->w; 286 drawable->old_h = dri_drawable->h; 287 memcpy(drawable->old, buffers, sizeof(__DRIbuffer) * count); 288 } 289 290 static __DRIbuffer * 291 dri2_allocate_buffer(__DRIscreen *sPriv, 292 unsigned attachment, unsigned format, 293 int width, int height) 294 { 295 struct dri_screen *screen = dri_screen(sPriv); 296 struct dri2_buffer *buffer; 297 struct pipe_resource templ; 298 enum pipe_format pf; 299 unsigned bind = 0; 300 struct winsys_handle whandle; 301 302 switch (attachment) { 303 case __DRI_BUFFER_FRONT_LEFT: 304 case __DRI_BUFFER_FAKE_FRONT_LEFT: 305 bind = PIPE_BIND_RENDER_TARGET | PIPE_BIND_SAMPLER_VIEW; 306 break; 307 case __DRI_BUFFER_BACK_LEFT: 308 bind = PIPE_BIND_RENDER_TARGET | PIPE_BIND_SAMPLER_VIEW; 309 break; 310 case __DRI_BUFFER_DEPTH: 311 case __DRI_BUFFER_DEPTH_STENCIL: 312 case __DRI_BUFFER_STENCIL: 313 bind = PIPE_BIND_DEPTH_STENCIL; /* XXX sampler? */ 314 break; 315 } 316 317 /* because we get the handle and stride */ 318 bind |= PIPE_BIND_SHARED; 319 320 switch (format) { 321 case 32: 322 pf = PIPE_FORMAT_B8G8R8A8_UNORM; 323 break; 324 case 24: 325 pf = PIPE_FORMAT_B8G8R8X8_UNORM; 326 break; 327 case 16: 328 pf = PIPE_FORMAT_Z16_UNORM; 329 break; 330 default: 331 return NULL; 332 } 333 334 buffer = CALLOC_STRUCT(dri2_buffer); 335 if (!buffer) 336 return NULL; 337 338 memset(&templ, 0, sizeof(templ)); 339 templ.bind = bind; 340 templ.format = pf; 341 templ.target = PIPE_TEXTURE_2D; 342 templ.last_level = 0; 343 templ.width0 = width; 344 templ.height0 = height; 345 templ.depth0 = 1; 346 templ.array_size = 1; 347 348 buffer->resource = 349 screen->base.screen->resource_create(screen->base.screen, &templ); 350 if (!buffer->resource) { 351 FREE(buffer); 352 return NULL; 353 } 354 355 memset(&whandle, 0, sizeof(whandle)); 356 whandle.type = DRM_API_HANDLE_TYPE_SHARED; 357 screen->base.screen->resource_get_handle(screen->base.screen, 358 buffer->resource, &whandle); 359 360 buffer->base.attachment = attachment; 361 buffer->base.name = whandle.handle; 362 buffer->base.cpp = util_format_get_blocksize(pf); 363 buffer->base.pitch = whandle.stride; 364 365 return &buffer->base; 366 } 367 368 static void 369 dri2_release_buffer(__DRIscreen *sPriv, __DRIbuffer *bPriv) 370 { 371 struct dri2_buffer *buffer = dri2_buffer(bPriv); 372 373 pipe_resource_reference(&buffer->resource, NULL); 374 FREE(buffer); 375 } 376 377 /* 378 * Backend functions for st_framebuffer interface. 379 */ 380 381 static void 382 dri2_allocate_textures(struct dri_drawable *drawable, 383 const enum st_attachment_type *statts, 384 unsigned count) 385 { 386 __DRIbuffer *buffers; 387 unsigned num_buffers = count; 388 389 buffers = dri2_drawable_get_buffers(drawable, statts, &num_buffers); 390 if (buffers) 391 dri2_drawable_process_buffers(drawable, buffers, num_buffers); 392 } 393 394 static void 395 dri2_flush_frontbuffer(struct dri_drawable *drawable, 396 enum st_attachment_type statt) 397 { 398 __DRIdrawable *dri_drawable = drawable->dPriv; 399 struct __DRIdri2LoaderExtensionRec *loader = drawable->sPriv->dri2.loader; 400 401 if (loader->flushFrontBuffer == NULL) 402 return; 403 404 if (statt == ST_ATTACHMENT_FRONT_LEFT) { 405 loader->flushFrontBuffer(dri_drawable, dri_drawable->loaderPrivate); 406 } 407 } 408 409 static void 410 dri2_update_tex_buffer(struct dri_drawable *drawable, 411 struct dri_context *ctx, 412 struct pipe_resource *res) 413 { 414 /* no-op */ 415 } 416 417 static __DRIimage * 418 dri2_lookup_egl_image(struct dri_screen *screen, void *handle) 419 { 420 __DRIimageLookupExtension *loader = screen->sPriv->dri2.image; 421 __DRIimage *img; 422 423 if (!loader->lookupEGLImage) 424 return NULL; 425 426 img = loader->lookupEGLImage(screen->sPriv, 427 handle, screen->sPriv->loaderPrivate); 428 429 return img; 430 } 431 432 static __DRIimage * 433 dri2_create_image_from_name(__DRIscreen *_screen, 434 int width, int height, int format, 435 int name, int pitch, void *loaderPrivate) 436 { 437 struct dri_screen *screen = dri_screen(_screen); 438 __DRIimage *img; 439 struct pipe_resource templ; 440 struct winsys_handle whandle; 441 unsigned tex_usage; 442 enum pipe_format pf; 443 444 tex_usage = PIPE_BIND_RENDER_TARGET | PIPE_BIND_SAMPLER_VIEW; 445 446 switch (format) { 447 case __DRI_IMAGE_FORMAT_RGB565: 448 pf = PIPE_FORMAT_B5G6R5_UNORM; 449 break; 450 case __DRI_IMAGE_FORMAT_XRGB8888: 451 pf = PIPE_FORMAT_B8G8R8X8_UNORM; 452 break; 453 case __DRI_IMAGE_FORMAT_ARGB8888: 454 pf = PIPE_FORMAT_B8G8R8A8_UNORM; 455 break; 456 case __DRI_IMAGE_FORMAT_ABGR8888: 457 pf = PIPE_FORMAT_R8G8B8A8_UNORM; 458 break; 459 default: 460 pf = PIPE_FORMAT_NONE; 461 break; 462 } 463 if (pf == PIPE_FORMAT_NONE) 464 return NULL; 465 466 img = CALLOC_STRUCT(__DRIimageRec); 467 if (!img) 468 return NULL; 469 470 memset(&templ, 0, sizeof(templ)); 471 templ.bind = tex_usage; 472 templ.format = pf; 473 templ.target = screen->target; 474 templ.last_level = 0; 475 templ.width0 = width; 476 templ.height0 = height; 477 templ.depth0 = 1; 478 templ.array_size = 1; 479 480 memset(&whandle, 0, sizeof(whandle)); 481 whandle.handle = name; 482 whandle.stride = pitch * util_format_get_blocksize(pf); 483 484 img->texture = screen->base.screen->resource_from_handle(screen->base.screen, 485 &templ, &whandle); 486 if (!img->texture) { 487 FREE(img); 488 return NULL; 489 } 490 491 img->level = 0; 492 img->layer = 0; 493 img->dri_format = format; 494 img->loader_private = loaderPrivate; 495 496 return img; 497 } 498 499 static __DRIimage * 500 dri2_create_image_from_renderbuffer(__DRIcontext *context, 501 int renderbuffer, void *loaderPrivate) 502 { 503 struct dri_context *ctx = dri_context(context); 504 505 if (!ctx->st->get_resource_for_egl_image) 506 return NULL; 507 508 /* TODO */ 509 return NULL; 510 } 511 512 static __DRIimage * 513 dri2_create_image(__DRIscreen *_screen, 514 int width, int height, int format, 515 unsigned int use, void *loaderPrivate) 516 { 517 struct dri_screen *screen = dri_screen(_screen); 518 __DRIimage *img; 519 struct pipe_resource templ; 520 unsigned tex_usage; 521 enum pipe_format pf; 522 523 tex_usage = PIPE_BIND_RENDER_TARGET | PIPE_BIND_SAMPLER_VIEW; 524 if (use & __DRI_IMAGE_USE_SCANOUT) 525 tex_usage |= PIPE_BIND_SCANOUT; 526 if (use & __DRI_IMAGE_USE_SHARE) 527 tex_usage |= PIPE_BIND_SHARED; 528 if (use & __DRI_IMAGE_USE_CURSOR) { 529 if (width != 64 || height != 64) 530 return NULL; 531 tex_usage |= PIPE_BIND_CURSOR; 532 } 533 534 switch (format) { 535 case __DRI_IMAGE_FORMAT_RGB565: 536 pf = PIPE_FORMAT_B5G6R5_UNORM; 537 break; 538 case __DRI_IMAGE_FORMAT_XRGB8888: 539 pf = PIPE_FORMAT_B8G8R8X8_UNORM; 540 break; 541 case __DRI_IMAGE_FORMAT_ARGB8888: 542 pf = PIPE_FORMAT_B8G8R8A8_UNORM; 543 break; 544 case __DRI_IMAGE_FORMAT_ABGR8888: 545 pf = PIPE_FORMAT_R8G8B8A8_UNORM; 546 break; 547 default: 548 pf = PIPE_FORMAT_NONE; 549 break; 550 } 551 if (pf == PIPE_FORMAT_NONE) 552 return NULL; 553 554 img = CALLOC_STRUCT(__DRIimageRec); 555 if (!img) 556 return NULL; 557 558 memset(&templ, 0, sizeof(templ)); 559 templ.bind = tex_usage; 560 templ.format = pf; 561 templ.target = PIPE_TEXTURE_2D; 562 templ.last_level = 0; 563 templ.width0 = width; 564 templ.height0 = height; 565 templ.depth0 = 1; 566 templ.array_size = 1; 567 568 img->texture = screen->base.screen->resource_create(screen->base.screen, &templ); 569 if (!img->texture) { 570 FREE(img); 571 return NULL; 572 } 573 574 img->level = 0; 575 img->layer = 0; 576 img->dri_format = format; 577 img->dri_components = 0; 578 579 img->loader_private = loaderPrivate; 580 return img; 581 } 582 583 static GLboolean 584 dri2_query_image(__DRIimage *image, int attrib, int *value) 585 { 586 struct winsys_handle whandle; 587 memset(&whandle, 0, sizeof(whandle)); 588 589 switch (attrib) { 590 case __DRI_IMAGE_ATTRIB_STRIDE: 591 image->texture->screen->resource_get_handle(image->texture->screen, 592 image->texture, &whandle); 593 *value = whandle.stride; 594 return GL_TRUE; 595 case __DRI_IMAGE_ATTRIB_HANDLE: 596 whandle.type = DRM_API_HANDLE_TYPE_KMS; 597 image->texture->screen->resource_get_handle(image->texture->screen, 598 image->texture, &whandle); 599 *value = whandle.handle; 600 return GL_TRUE; 601 case __DRI_IMAGE_ATTRIB_NAME: 602 whandle.type = DRM_API_HANDLE_TYPE_SHARED; 603 image->texture->screen->resource_get_handle(image->texture->screen, 604 image->texture, &whandle); 605 *value = whandle.handle; 606 return GL_TRUE; 607 case __DRI_IMAGE_ATTRIB_FORMAT: 608 *value = image->dri_format; 609 return GL_TRUE; 610 case __DRI_IMAGE_ATTRIB_WIDTH: 611 *value = image->texture->width0; 612 return GL_TRUE; 613 case __DRI_IMAGE_ATTRIB_HEIGHT: 614 *value = image->texture->height0; 615 return GL_TRUE; 616 case __DRI_IMAGE_ATTRIB_COMPONENTS: 617 if (image->dri_components == 0) 618 return GL_FALSE; 619 *value = image->dri_components; 620 return GL_TRUE; 621 default: 622 return GL_FALSE; 623 } 624 } 625 626 static __DRIimage * 627 dri2_dup_image(__DRIimage *image, void *loaderPrivate) 628 { 629 __DRIimage *img; 630 631 img = CALLOC_STRUCT(__DRIimageRec); 632 if (!img) 633 return NULL; 634 635 img->texture = NULL; 636 pipe_resource_reference(&img->texture, image->texture); 637 img->level = image->level; 638 img->layer = image->layer; 639 /* This should be 0 for sub images, but dup is also used for base images. */ 640 img->dri_components = image->dri_components; 641 img->loader_private = loaderPrivate; 642 643 return img; 644 } 645 646 static GLboolean 647 dri2_validate_usage(__DRIimage *image, unsigned int use) 648 { 649 /* 650 * Gallium drivers are bad at adding usages to the resources 651 * once opened again in another process, which is the main use 652 * case for this, so we have to lie. 653 */ 654 if (image != NULL) 655 return GL_TRUE; 656 else 657 return GL_FALSE; 658 } 659 660 static __DRIimage * 661 dri2_from_names(__DRIscreen *screen, int width, int height, int format, 662 int *names, int num_names, int *strides, int *offsets, 663 void *loaderPrivate) 664 { 665 __DRIimage *img; 666 int stride, dri_components; 667 668 if (num_names != 1) 669 return NULL; 670 if (offsets[0] != 0) 671 return NULL; 672 673 switch(format) { 674 case __DRI_IMAGE_FOURCC_RGB565: 675 format = __DRI_IMAGE_FORMAT_RGB565; 676 dri_components = __DRI_IMAGE_COMPONENTS_RGB; 677 break; 678 case __DRI_IMAGE_FOURCC_ARGB8888: 679 format = __DRI_IMAGE_FORMAT_ARGB8888; 680 dri_components = __DRI_IMAGE_COMPONENTS_RGBA; 681 break; 682 case __DRI_IMAGE_FOURCC_XRGB8888: 683 format = __DRI_IMAGE_FORMAT_XRGB8888; 684 dri_components = __DRI_IMAGE_COMPONENTS_RGB; 685 break; 686 case __DRI_IMAGE_FOURCC_ABGR8888: 687 format = __DRI_IMAGE_FORMAT_ABGR8888; 688 dri_components = __DRI_IMAGE_COMPONENTS_RGBA; 689 break; 690 case __DRI_IMAGE_FOURCC_XBGR8888: 691 format = __DRI_IMAGE_FORMAT_XBGR8888; 692 dri_components = __DRI_IMAGE_COMPONENTS_RGB; 693 break; 694 default: 695 return NULL; 696 } 697 698 /* Strides are in bytes not pixels. */ 699 stride = strides[0] /4; 700 701 img = dri2_create_image_from_name(screen, width, height, format, 702 names[0], stride, loaderPrivate); 703 if (img == NULL) 704 return NULL; 705 706 img->dri_components = dri_components; 707 return img; 708 } 709 710 static __DRIimage * 711 dri2_from_planar(__DRIimage *image, int plane, void *loaderPrivate) 712 { 713 __DRIimage *img; 714 715 if (plane != 0) 716 return NULL; 717 718 if (image->dri_components == 0) 719 return NULL; 720 721 img = dri2_dup_image(image, loaderPrivate); 722 if (img == NULL) 723 return NULL; 724 725 /* set this to 0 for sub images. */ 726 img->dri_components = 0; 727 return img; 728 } 729 730 static void 731 dri2_destroy_image(__DRIimage *img) 732 { 733 pipe_resource_reference(&img->texture, NULL); 734 FREE(img); 735 } 736 737 static struct __DRIimageExtensionRec dri2ImageExtension = { 738 { __DRI_IMAGE, 5 }, 739 dri2_create_image_from_name, 740 dri2_create_image_from_renderbuffer, 741 dri2_destroy_image, 742 dri2_create_image, 743 dri2_query_image, 744 dri2_dup_image, 745 dri2_validate_usage, 746 dri2_from_names, 747 dri2_from_planar, 748 }; 749 750 /* 751 * Backend function init_screen. 752 */ 753 754 static const __DRIextension *dri_screen_extensions[] = { 755 &driTexBufferExtension.base, 756 &dri2FlushExtension.base, 757 &dri2ImageExtension.base, 758 &dri2ConfigQueryExtension.base, 759 NULL 760 }; 761 762 static const __DRIextension *dri_screen_extensions_throttle[] = { 763 &driTexBufferExtension.base, 764 &dri2FlushExtension.base, 765 &dri2ImageExtension.base, 766 &dri2ConfigQueryExtension.base, 767 &dri2ThrottleExtension.base, 768 NULL 769 }; 770 771 /** 772 * This is the driver specific part of the createNewScreen entry point. 773 * 774 * Returns the struct gl_config supported by this driver. 775 */ 776 static const __DRIconfig ** 777 dri2_init_screen(__DRIscreen * sPriv) 778 { 779 const __DRIconfig **configs; 780 struct dri_screen *screen; 781 struct pipe_screen *pscreen; 782 const struct drm_conf_ret *throttle_ret = NULL; 783 784 screen = CALLOC_STRUCT(dri_screen); 785 if (!screen) 786 return NULL; 787 788 screen->sPriv = sPriv; 789 screen->fd = sPriv->fd; 790 791 sPriv->driverPrivate = (void *)screen; 792 793 pscreen = driver_descriptor.create_screen(screen->fd); 794 if (driver_descriptor.configuration) 795 throttle_ret = driver_descriptor.configuration(DRM_CONF_THROTTLE); 796 797 if (throttle_ret && throttle_ret->val.val_int != -1) { 798 sPriv->extensions = dri_screen_extensions_throttle; 799 screen->default_throttle_frames = throttle_ret->val.val_int; 800 } else 801 sPriv->extensions = dri_screen_extensions; 802 803 /* dri_init_screen_helper checks pscreen for us */ 804 805 configs = dri_init_screen_helper(screen, pscreen, 32); 806 if (!configs) 807 goto fail; 808 809 sPriv->api_mask = 0; 810 if (screen->st_api->profile_mask & ST_PROFILE_DEFAULT_MASK) 811 sPriv->api_mask |= 1 << __DRI_API_OPENGL; 812 if (screen->st_api->profile_mask & ST_PROFILE_OPENGL_ES1_MASK) 813 sPriv->api_mask |= 1 << __DRI_API_GLES; 814 if (screen->st_api->profile_mask & ST_PROFILE_OPENGL_ES2_MASK) 815 sPriv->api_mask |= 1 << __DRI_API_GLES2; 816 817 screen->auto_fake_front = dri_with_format(sPriv); 818 screen->broken_invalidate = !sPriv->dri2.useInvalidate; 819 screen->lookup_egl_image = dri2_lookup_egl_image; 820 821 return configs; 822 fail: 823 dri_destroy_screen_helper(screen); 824 FREE(screen); 825 return NULL; 826 } 827 828 static boolean 829 dri2_create_buffer(__DRIscreen * sPriv, 830 __DRIdrawable * dPriv, 831 const struct gl_config * visual, boolean isPixmap) 832 { 833 struct dri_drawable *drawable = NULL; 834 835 if (!dri_create_buffer(sPriv, dPriv, visual, isPixmap)) 836 return FALSE; 837 838 drawable = dPriv->driverPrivate; 839 840 drawable->allocate_textures = dri2_allocate_textures; 841 drawable->flush_frontbuffer = dri2_flush_frontbuffer; 842 drawable->update_tex_buffer = dri2_update_tex_buffer; 843 844 return TRUE; 845 } 846 847 /** 848 * DRI driver virtual function table. 849 * 850 * DRI versions differ in their implementation of init_screen and swap_buffers. 851 */ 852 const struct __DriverAPIRec driDriverAPI = { 853 .InitScreen = dri2_init_screen, 854 .DestroyScreen = dri_destroy_screen, 855 .CreateContext = dri_create_context, 856 .DestroyContext = dri_destroy_context, 857 .CreateBuffer = dri2_create_buffer, 858 .DestroyBuffer = dri_destroy_buffer, 859 .MakeCurrent = dri_make_current, 860 .UnbindContext = dri_unbind_context, 861 862 .AllocateBuffer = dri2_allocate_buffer, 863 .ReleaseBuffer = dri2_release_buffer, 864 }; 865 866 /* This is the table of extensions that the loader will dlsym() for. */ 867 PUBLIC const __DRIextension *__driDriverExtensions[] = { 868 &driCoreExtension.base, 869 &driDRI2Extension.base, 870 NULL 871 }; 872 873 /* vim: set sw=3 ts=8 sts=3 expandtab: */ 874
