src/gallium/drivers/freedreno/freedreno_resource.c

   1 /* -*- mode: C; c-file-style: "k&r"; tab-width 4; indent-tabs-mode: t; -*- */
   2
   3 /*
   4  * Copyright (C) 2012 Rob Clark <robclark@freedesktop.org>
   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 (including the next
  14  * paragraph) shall be included in all copies or substantial portions of the
  15  * Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  18  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  20  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  21  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  22  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  23  * SOFTWARE.
  24  *
  25  * Authors:
  26  *    Rob Clark <robclark@freedesktop.org>
  27  */
  28
  29 #include "util/u_format.h"
  30 #include "util/u_inlines.h"
  31 #include "util/u_transfer.h"
  32 #include "util/u_string.h"
  33 #include "util/u_surface.h"
  34
  35 #include "freedreno_resource.h"
  36 #include "freedreno_screen.h"
  37 #include "freedreno_surface.h"
  38 #include "freedreno_context.h"
  39 #include "freedreno_query_hw.h"
  40 #include "freedreno_util.h"
  41
  42 #include <errno.h>
  43
  44 static void
  45 fd_invalidate_resource(struct fd_context *ctx, struct pipe_resource *prsc)
  46 {
  47         int i;
  48
  49         /* Go through the entire state and see if the resource is bound
  50          * anywhere. If it is, mark the relevant state as dirty. This is called on
  51          * realloc_bo.
  52          */
  53
  54         /* Constbufs */
  55         for (i = 1; i < PIPE_MAX_CONSTANT_BUFFERS && !(ctx->dirty & FD_DIRTY_CONSTBUF); i++) {
  56                 if (ctx->constbuf[PIPE_SHADER_VERTEX].cb[i].buffer == prsc)
  57                         ctx->dirty |= FD_DIRTY_CONSTBUF;
  58                 if (ctx->constbuf[PIPE_SHADER_FRAGMENT].cb[i].buffer == prsc)
  59                         ctx->dirty |= FD_DIRTY_CONSTBUF;
  60         }
  61
  62         /* VBOs */
  63         for (i = 0; i < ctx->vtx.vertexbuf.count && !(ctx->dirty & FD_DIRTY_VTXBUF); i++) {
  64                 if (ctx->vtx.vertexbuf.vb[i].buffer == prsc)
  65                         ctx->dirty |= FD_DIRTY_VTXBUF;
  66         }
  67
  68         /* Index buffer */
  69         if (ctx->indexbuf.buffer == prsc)
  70                 ctx->dirty |= FD_DIRTY_INDEXBUF;
  71
  72         /* Textures */
  73         for (i = 0; i < ctx->verttex.num_textures && !(ctx->dirty & FD_DIRTY_VERTTEX); i++) {
  74                 if (ctx->verttex.textures[i]->texture == prsc)
  75                         ctx->dirty |= FD_DIRTY_VERTTEX;
  76         }
  77         for (i = 0; i < ctx->fragtex.num_textures && !(ctx->dirty & FD_DIRTY_FRAGTEX); i++) {
  78                 if (ctx->fragtex.textures[i]->texture == prsc)
  79                         ctx->dirty |= FD_DIRTY_FRAGTEX;
  80         }
  81 }
  82
  83 static void
  84 realloc_bo(struct fd_resource *rsc, uint32_t size)
  85 {
  86         struct fd_screen *screen = fd_screen(rsc->base.b.screen);
  87         uint32_t flags = DRM_FREEDRENO_GEM_CACHE_WCOMBINE |
  88                         DRM_FREEDRENO_GEM_TYPE_KMEM; /* TODO */
  89
  90         /* if we start using things other than write-combine,
  91          * be sure to check for PIPE_RESOURCE_FLAG_MAP_COHERENT
  92          */
  93
  94         if (rsc->bo)
  95                 fd_bo_del(rsc->bo);
  96
  97         rsc->bo = fd_bo_new(screen->dev, size, flags);
  98         rsc->timestamp = 0;
  99         rsc->dirty = rsc->reading = false;
 100         list_delinit(&rsc->list);
 101         util_range_set_empty(&rsc->valid_buffer_range);
 102 }
 103
 104 static void fd_resource_transfer_flush_region(struct pipe_context *pctx,
 105                 struct pipe_transfer *ptrans,
 106                 const struct pipe_box *box)
 107 {
 108         struct fd_resource *rsc = fd_resource(ptrans->resource);
 109
 110         if (ptrans->resource->target == PIPE_BUFFER)
 111                 util_range_add(&rsc->valid_buffer_range,
 112                                            ptrans->box.x + box->x,
 113                                            ptrans->box.x + box->x + box->width);
 114 }
 115
 116 static void
 117 fd_resource_transfer_unmap(struct pipe_context *pctx,
 118                 struct pipe_transfer *ptrans)
 119 {
 120         struct fd_context *ctx = fd_context(pctx);
 121         struct fd_resource *rsc = fd_resource(ptrans->resource);
 122         if (!(ptrans->usage & PIPE_TRANSFER_UNSYNCHRONIZED))
 123                 fd_bo_cpu_fini(rsc->bo);
 124
 125         util_range_add(&rsc->valid_buffer_range,
 126                                    ptrans->box.x,
 127                                    ptrans->box.x + ptrans->box.width);
 128
 129         pipe_resource_reference(&ptrans->resource, NULL);
 130         util_slab_free(&ctx->transfer_pool, ptrans);
 131 }
 132
 133 static void *
 134 fd_resource_transfer_map(struct pipe_context *pctx,
 135                 struct pipe_resource *prsc,
 136                 unsigned level, unsigned usage,
 137                 const struct pipe_box *box,
 138                 struct pipe_transfer **pptrans)
 139 {
 140         struct fd_context *ctx = fd_context(pctx);
 141         struct fd_resource *rsc = fd_resource(prsc);
 142         struct fd_resource_slice *slice = fd_resource_slice(rsc, level);
 143         struct pipe_transfer *ptrans;
 144         enum pipe_format format = prsc->format;
 145         uint32_t op = 0;
 146         uint32_t offset;
 147         char *buf;
 148         int ret = 0;
 149
 150         DBG("prsc=%p, level=%u, usage=%x", prsc, level, usage);
 151
 152         ptrans = util_slab_alloc(&ctx->transfer_pool);
 153         if (!ptrans)
 154                 return NULL;
 155
 156         /* util_slab_alloc() doesn't zero: */
 157         memset(ptrans, 0, sizeof(*ptrans));
 158
 159         pipe_resource_reference(&ptrans->resource, prsc);
 160         ptrans->level = level;
 161         ptrans->usage = usage;
 162         ptrans->box = *box;
 163         ptrans->stride = slice->pitch * rsc->cpp;
 164         ptrans->layer_stride = slice->size0;
 165
 166         if (usage & PIPE_TRANSFER_READ)
 167                 op |= DRM_FREEDRENO_PREP_READ;
 168
 169         if (usage & PIPE_TRANSFER_WRITE)
 170                 op |= DRM_FREEDRENO_PREP_WRITE;
 171
 172         if (usage & PIPE_TRANSFER_DISCARD_WHOLE_RESOURCE) {
 173                 realloc_bo(rsc, fd_bo_size(rsc->bo));
 174                 fd_invalidate_resource(ctx, prsc);
 175         } else if ((usage & PIPE_TRANSFER_WRITE) &&
 176                            prsc->target == PIPE_BUFFER &&
 177                            !util_ranges_intersect(&rsc->valid_buffer_range,
 178                                                                           box->x, box->x + box->width)) {
 179                 /* We are trying to write to a previously uninitialized range. No need
 180                  * to wait.
 181                  */
 182         } else if (!(usage & PIPE_TRANSFER_UNSYNCHRONIZED)) {
 183                 /* If the GPU is writing to the resource, or if it is reading from the
 184                  * resource and we're trying to write to it, flush the renders.
 185                  */
 186                 if (rsc->dirty ||
 187                         ((ptrans->usage & PIPE_TRANSFER_WRITE) && rsc->reading))
 188                         fd_context_render(pctx);
 189
 190                 /* The GPU keeps track of how the various bo's are being used, and
 191                  * will wait if necessary for the proper operation to have
 192                  * completed.
 193                  */
 194                 ret = fd_bo_cpu_prep(rsc->bo, ctx->screen->pipe, op);
 195                 if (ret)
 196                         goto fail;
 197         }
 198
 199         buf = fd_bo_map(rsc->bo);
 200         if (!buf) {
 201                 fd_resource_transfer_unmap(pctx, ptrans);
 202                 return NULL;
 203         }
 204
 205         *pptrans = ptrans;
 206
 207         if (rsc->layer_first) {
 208                 offset = slice->offset +
 209                         box->y / util_format_get_blockheight(format) * ptrans->stride +
 210                         box->x / util_format_get_blockwidth(format) * rsc->cpp +
 211                         box->z * rsc->layer_size;
 212         } else {
 213                 offset = slice->offset +
 214                         box->y / util_format_get_blockheight(format) * ptrans->stride +
 215                         box->x / util_format_get_blockwidth(format) * rsc->cpp +
 216                         box->z * slice->size0;
 217         }
 218
 219         return buf + offset;
 220
 221 fail:
 222         fd_resource_transfer_unmap(pctx, ptrans);
 223         return NULL;
 224 }
 225
 226 static void
 227 fd_resource_destroy(struct pipe_screen *pscreen,
 228                 struct pipe_resource *prsc)
 229 {
 230         struct fd_resource *rsc = fd_resource(prsc);
 231         if (rsc->bo)
 232                 fd_bo_del(rsc->bo);
 233         list_delinit(&rsc->list);
 234         util_range_destroy(&rsc->valid_buffer_range);
 235         FREE(rsc);
 236 }
 237
 238 static boolean
 239 fd_resource_get_handle(struct pipe_screen *pscreen,
 240                 struct pipe_resource *prsc,
 241                 struct winsys_handle *handle)
 242 {
 243         struct fd_resource *rsc = fd_resource(prsc);
 244
 245         return fd_screen_bo_get_handle(pscreen, rsc->bo,
 246                         rsc->slices[0].pitch * rsc->cpp, handle);
 247 }
 248
 249
 250 static const struct u_resource_vtbl fd_resource_vtbl = {
 251                 .resource_get_handle      = fd_resource_get_handle,
 252                 .resource_destroy         = fd_resource_destroy,
 253                 .transfer_map             = fd_resource_transfer_map,
 254                 .transfer_flush_region    = fd_resource_transfer_flush_region,
 255                 .transfer_unmap           = fd_resource_transfer_unmap,
 256                 .transfer_inline_write    = u_default_transfer_inline_write,
 257 };
 258
 259 static uint32_t
 260 setup_slices(struct fd_resource *rsc, uint32_t alignment)
 261 {
 262         struct pipe_resource *prsc = &rsc->base.b;
 263         uint32_t level, size = 0;
 264         uint32_t width = prsc->width0;
 265         uint32_t height = prsc->height0;
 266         uint32_t depth = prsc->depth0;
 267         /* in layer_first layout, the level (slice) contains just one
 268          * layer (since in fact the layer contains the slices)
 269          */
 270         uint32_t layers_in_level = rsc->layer_first ? 1 : prsc->array_size;
 271
 272         for (level = 0; level <= prsc->last_level; level++) {
 273                 struct fd_resource_slice *slice = fd_resource_slice(rsc, level);
 274
 275                 slice->pitch = width = align(width, 32);
 276                 slice->offset = size;
 277                 /* 1d array and 2d array textures must all have the same layer size
 278                  * for each miplevel on a3xx. 3d textures can have different layer
 279                  * sizes for high levels, but the hw auto-sizer is buggy (or at least
 280                  * different than what this code does), so as soon as the layer size
 281                  * range gets into range, we stop reducing it.
 282                  */
 283                 if (prsc->target == PIPE_TEXTURE_3D && (
 284                                         level == 1 ||
 285                                         (level > 1 && rsc->slices[level - 1].size0 > 0xf000)))
 286                         slice->size0 = align(slice->pitch * height * rsc->cpp, alignment);
 287                 else if (level == 0 || rsc->layer_first || alignment == 1)
 288                         slice->size0 = align(slice->pitch * height * rsc->cpp, alignment);
 289                 else
 290                         slice->size0 = rsc->slices[level - 1].size0;
 291
 292                 size += slice->size0 * depth * layers_in_level;
 293
 294                 width = u_minify(width, 1);
 295                 height = u_minify(height, 1);
 296                 depth = u_minify(depth, 1);
 297         }
 298
 299         return size;
 300 }
 301
 302 static uint32_t
 303 slice_alignment(struct pipe_screen *pscreen, const struct pipe_resource *tmpl)
 304 {
 305         /* on a3xx, 2d array and 3d textures seem to want their
 306          * layers aligned to page boundaries:
 307          */
 308         switch (tmpl->target) {
 309         case PIPE_TEXTURE_3D:
 310         case PIPE_TEXTURE_1D_ARRAY:
 311         case PIPE_TEXTURE_2D_ARRAY:
 312                 return 4096;
 313         default:
 314                 return 1;
 315         }
 316 }
 317
 318 /**
 319  * Create a new texture object, using the given template info.
 320  */
 321 static struct pipe_resource *
 322 fd_resource_create(struct pipe_screen *pscreen,
 323                 const struct pipe_resource *tmpl)
 324 {
 325         struct fd_resource *rsc = CALLOC_STRUCT(fd_resource);
 326         struct pipe_resource *prsc = &rsc->base.b;
 327         uint32_t size;
 328
 329         DBG("target=%d, format=%s, %ux%ux%u, array_size=%u, last_level=%u, "
 330                         "nr_samples=%u, usage=%u, bind=%x, flags=%x",
 331                         tmpl->target, util_format_name(tmpl->format),
 332                         tmpl->width0, tmpl->height0, tmpl->depth0,
 333                         tmpl->array_size, tmpl->last_level, tmpl->nr_samples,
 334                         tmpl->usage, tmpl->bind, tmpl->flags);
 335
 336         if (!rsc)
 337                 return NULL;
 338
 339         *prsc = *tmpl;
 340
 341         pipe_reference_init(&prsc->reference, 1);
 342         list_inithead(&rsc->list);
 343         prsc->screen = pscreen;
 344
 345         util_range_init(&rsc->valid_buffer_range);
 346
 347         rsc->base.vtbl = &fd_resource_vtbl;
 348         rsc->cpp = util_format_get_blocksize(tmpl->format);
 349
 350         assert(rsc->cpp);
 351
 352         if (is_a4xx(fd_screen(pscreen))) {
 353                 switch (tmpl->target) {
 354                 case PIPE_TEXTURE_3D:
 355                         /* TODO 3D_ARRAY? */
 356                         rsc->layer_first = false;
 357                         break;
 358                 default:
 359                         rsc->layer_first = true;
 360                         break;
 361                 }
 362         }
 363
 364         size = setup_slices(rsc, slice_alignment(pscreen, tmpl));
 365
 366         if (rsc->layer_first) {
 367                 rsc->layer_size = align(size, 4096);
 368                 size = rsc->layer_size * prsc->array_size;
 369         }
 370
 371         realloc_bo(rsc, size);
 372         if (!rsc->bo)
 373                 goto fail;
 374
 375         return prsc;
 376 fail:
 377         fd_resource_destroy(pscreen, prsc);
 378         return NULL;
 379 }
 380
 381 /**
 382  * Create a texture from a winsys_handle. The handle is often created in
 383  * another process by first creating a pipe texture and then calling
 384  * resource_get_handle.
 385  */
 386 static struct pipe_resource *
 387 fd_resource_from_handle(struct pipe_screen *pscreen,
 388                 const struct pipe_resource *tmpl,
 389                 struct winsys_handle *handle)
 390 {
 391         struct fd_resource *rsc = CALLOC_STRUCT(fd_resource);
 392         struct fd_resource_slice *slice = &rsc->slices[0];
 393         struct pipe_resource *prsc = &rsc->base.b;
 394
 395         DBG("target=%d, format=%s, %ux%ux%u, array_size=%u, last_level=%u, "
 396                         "nr_samples=%u, usage=%u, bind=%x, flags=%x",
 397                         tmpl->target, util_format_name(tmpl->format),
 398                         tmpl->width0, tmpl->height0, tmpl->depth0,
 399                         tmpl->array_size, tmpl->last_level, tmpl->nr_samples,
 400                         tmpl->usage, tmpl->bind, tmpl->flags);
 401
 402         if (!rsc)
 403                 return NULL;
 404
 405         *prsc = *tmpl;
 406
 407         pipe_reference_init(&prsc->reference, 1);
 408         list_inithead(&rsc->list);
 409         prsc->screen = pscreen;
 410
 411         util_range_init(&rsc->valid_buffer_range);
 412
 413         rsc->bo = fd_screen_bo_from_handle(pscreen, handle, &slice->pitch);
 414         if (!rsc->bo)
 415                 goto fail;
 416
 417         rsc->base.vtbl = &fd_resource_vtbl;
 418         rsc->cpp = util_format_get_blocksize(tmpl->format);
 419         slice->pitch /= rsc->cpp;
 420
 421         assert(rsc->cpp);
 422
 423         return prsc;
 424
 425 fail:
 426         fd_resource_destroy(pscreen, prsc);
 427         return NULL;
 428 }
 429
 430 static void fd_blitter_pipe_begin(struct fd_context *ctx);
 431 static void fd_blitter_pipe_end(struct fd_context *ctx);
 432
 433 /**
 434  * _copy_region using pipe (3d engine)
 435  */
 436 static bool
 437 fd_blitter_pipe_copy_region(struct fd_context *ctx,
 438                 struct pipe_resource *dst,
 439                 unsigned dst_level,
 440                 unsigned dstx, unsigned dsty, unsigned dstz,
 441                 struct pipe_resource *src,
 442                 unsigned src_level,
 443                 const struct pipe_box *src_box)
 444 {
 445         /* not until we allow rendertargets to be buffers */
 446         if (dst->target == PIPE_BUFFER || src->target == PIPE_BUFFER)
 447                 return false;
 448
 449         if (!util_blitter_is_copy_supported(ctx->blitter, dst, src))
 450                 return false;
 451
 452         fd_blitter_pipe_begin(ctx);
 453         util_blitter_copy_texture(ctx->blitter,
 454                         dst, dst_level, dstx, dsty, dstz,
 455                         src, src_level, src_box);
 456         fd_blitter_pipe_end(ctx);
 457
 458         return true;
 459 }
 460
 461 /**
 462  * Copy a block of pixels from one resource to another.
 463  * The resource must be of the same format.
 464  * Resources with nr_samples > 1 are not allowed.
 465  */
 466 static void
 467 fd_resource_copy_region(struct pipe_context *pctx,
 468                 struct pipe_resource *dst,
 469                 unsigned dst_level,
 470                 unsigned dstx, unsigned dsty, unsigned dstz,
 471                 struct pipe_resource *src,
 472                 unsigned src_level,
 473                 const struct pipe_box *src_box)
 474 {
 475         struct fd_context *ctx = fd_context(pctx);
 476
 477         /* TODO if we have 2d core, or other DMA engine that could be used
 478          * for simple copies and reasonably easily synchronized with the 3d
 479          * core, this is where we'd plug it in..
 480          */
 481
 482         /* try blit on 3d pipe: */
 483         if (fd_blitter_pipe_copy_region(ctx,
 484                         dst, dst_level, dstx, dsty, dstz,
 485                         src, src_level, src_box))
 486                 return;
 487
 488         /* else fallback to pure sw: */
 489         util_resource_copy_region(pctx,
 490                         dst, dst_level, dstx, dsty, dstz,
 491                         src, src_level, src_box);
 492 }
 493
 494 /**
 495  * Optimal hardware path for blitting pixels.
 496  * Scaling, format conversion, up- and downsampling (resolve) are allowed.
 497  */
 498 static void
 499 fd_blit(struct pipe_context *pctx, const struct pipe_blit_info *blit_info)
 500 {
 501         struct fd_context *ctx = fd_context(pctx);
 502         struct pipe_blit_info info = *blit_info;
 503
 504         if (info.src.resource->nr_samples > 1 &&
 505                         info.dst.resource->nr_samples <= 1 &&
 506                         !util_format_is_depth_or_stencil(info.src.resource->format) &&
 507                         !util_format_is_pure_integer(info.src.resource->format)) {
 508                 DBG("color resolve unimplemented");
 509                 return;
 510         }
 511
 512         if (util_try_blit_via_copy_region(pctx, &info)) {
 513                 return; /* done */
 514         }
 515
 516         if (info.mask & PIPE_MASK_S) {
 517                 DBG("cannot blit stencil, skipping");
 518                 info.mask &= ~PIPE_MASK_S;
 519         }
 520
 521         if (!util_blitter_is_blit_supported(ctx->blitter, &info)) {
 522                 DBG("blit unsupported %s -> %s",
 523                                 util_format_short_name(info.src.resource->format),
 524                                 util_format_short_name(info.dst.resource->format));
 525                 return;
 526         }
 527
 528         fd_blitter_pipe_begin(ctx);
 529         util_blitter_blit(ctx->blitter, &info);
 530         fd_blitter_pipe_end(ctx);
 531 }
 532
 533 static void
 534 fd_blitter_pipe_begin(struct fd_context *ctx)
 535 {
 536         util_blitter_save_vertex_buffer_slot(ctx->blitter, ctx->vtx.vertexbuf.vb);
 537         util_blitter_save_vertex_elements(ctx->blitter, ctx->vtx.vtx);
 538         util_blitter_save_vertex_shader(ctx->blitter, ctx->prog.vp);
 539         util_blitter_save_rasterizer(ctx->blitter, ctx->rasterizer);
 540         util_blitter_save_viewport(ctx->blitter, &ctx->viewport);
 541         util_blitter_save_scissor(ctx->blitter, &ctx->scissor);
 542         util_blitter_save_fragment_shader(ctx->blitter, ctx->prog.fp);
 543         util_blitter_save_blend(ctx->blitter, ctx->blend);
 544         util_blitter_save_depth_stencil_alpha(ctx->blitter, ctx->zsa);
 545         util_blitter_save_stencil_ref(ctx->blitter, &ctx->stencil_ref);
 546         util_blitter_save_sample_mask(ctx->blitter, ctx->sample_mask);
 547         util_blitter_save_framebuffer(ctx->blitter, &ctx->framebuffer);
 548         util_blitter_save_fragment_sampler_states(ctx->blitter,
 549                         ctx->fragtex.num_samplers,
 550                         (void **)ctx->fragtex.samplers);
 551         util_blitter_save_fragment_sampler_views(ctx->blitter,
 552                         ctx->fragtex.num_textures, ctx->fragtex.textures);
 553
 554         fd_hw_query_set_stage(ctx, ctx->ring, FD_STAGE_BLIT);
 555 }
 556
 557 static void
 558 fd_blitter_pipe_end(struct fd_context *ctx)
 559 {
 560         fd_hw_query_set_stage(ctx, ctx->ring, FD_STAGE_NULL);
 561 }
 562
 563 static void
 564 fd_flush_resource(struct pipe_context *pctx, struct pipe_resource *prsc)
 565 {
 566         struct fd_resource *rsc = fd_resource(prsc);
 567
 568         if (rsc->dirty)
 569                 fd_context_render(pctx);
 570 }
 571
 572 void
 573 fd_resource_screen_init(struct pipe_screen *pscreen)
 574 {
 575         pscreen->resource_create = fd_resource_create;
 576         pscreen->resource_from_handle = fd_resource_from_handle;
 577         pscreen->resource_get_handle = u_resource_get_handle_vtbl;
 578         pscreen->resource_destroy = u_resource_destroy_vtbl;
 579 }
 580
 581 void
 582 fd_resource_context_init(struct pipe_context *pctx)
 583 {
 584         pctx->transfer_map = u_transfer_map_vtbl;
 585         pctx->transfer_flush_region = u_transfer_flush_region_vtbl;
 586         pctx->transfer_unmap = u_transfer_unmap_vtbl;
 587         pctx->transfer_inline_write = u_transfer_inline_write_vtbl;
 588         pctx->create_surface = fd_create_surface;
 589         pctx->surface_destroy = fd_surface_destroy;
 590         pctx->resource_copy_region = fd_resource_copy_region;
 591         pctx->blit = fd_blit;
 592         pctx->flush_resource = fd_flush_resource;
 593 }