src/gallium/drivers/vc4/vc4_resource.c

   1 /*
   2  * Copyright © 2014 Broadcom
   3  * Copyright (C) 2012 Rob Clark <robclark@freedesktop.org>
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining a
   6  * copy of this software and associated documentation files (the "Software"),
   7  * to deal in the Software without restriction, including without limitation
   8  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   9  * and/or sell copies of the Software, and to permit persons to whom the
  10  * Software is furnished to do so, subject to the following conditions:
  11  *
  12  * The above copyright notice and this permission notice (including the next
  13  * paragraph) shall be included in all copies or substantial portions of the
  14  * 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 DEALINGS
  22  * IN THE SOFTWARE.
  23  */
  24
  25 #include "util/u_blit.h"
  26 #include "util/u_memory.h"
  27 #include "util/u_format.h"
  28 #include "util/u_inlines.h"
  29 #include "util/u_surface.h"
  30 #include "util/u_upload_mgr.h"
  31
  32 #include "vc4_screen.h"
  33 #include "vc4_context.h"
  34 #include "vc4_resource.h"
  35 #include "vc4_tiling.h"
  36
  37 static bool miptree_debug = false;
  38
  39 static bool
  40 vc4_resource_bo_alloc(struct vc4_resource *rsc)
  41 {
  42         struct pipe_resource *prsc = &rsc->base.b;
  43         struct pipe_screen *pscreen = prsc->screen;
  44         struct vc4_bo *bo;
  45
  46         if (miptree_debug) {
  47                 fprintf(stderr, "alloc %p: size %d + offset %d -> %d\n",
  48                         rsc,
  49                         rsc->slices[0].size,
  50                         rsc->slices[0].offset,
  51                         rsc->slices[0].offset +
  52                         rsc->slices[0].size +
  53                         rsc->cube_map_stride * (prsc->array_size - 1));
  54         }
  55
  56         bo = vc4_bo_alloc(vc4_screen(pscreen),
  57                           rsc->slices[0].offset +
  58                           rsc->slices[0].size +
  59                           rsc->cube_map_stride * (prsc->array_size - 1),
  60                           "resource");
  61         if (bo) {
  62                 vc4_bo_unreference(&rsc->bo);
  63                 rsc->bo = bo;
  64                 return true;
  65         } else {
  66                 return false;
  67         }
  68 }
  69
  70 static void
  71 vc4_resource_transfer_unmap(struct pipe_context *pctx,
  72                             struct pipe_transfer *ptrans)
  73 {
  74         struct vc4_context *vc4 = vc4_context(pctx);
  75         struct vc4_transfer *trans = vc4_transfer(ptrans);
  76
  77         if (trans->map) {
  78                 struct vc4_resource *rsc;
  79                 struct vc4_resource_slice *slice;
  80                 if (trans->ss_resource) {
  81                         rsc = vc4_resource(trans->ss_resource);
  82                         slice = &rsc->slices[0];
  83                 } else {
  84                         rsc = vc4_resource(ptrans->resource);
  85                         slice = &rsc->slices[ptrans->level];
  86                 }
  87
  88                 if (ptrans->usage & PIPE_TRANSFER_WRITE) {
  89                         vc4_store_tiled_image(rsc->bo->map + slice->offset +
  90                                               ptrans->box.z * rsc->cube_map_stride,
  91                                               slice->stride,
  92                                               trans->map, ptrans->stride,
  93                                               slice->tiling, rsc->cpp,
  94                                               &ptrans->box);
  95                 }
  96                 free(trans->map);
  97         }
  98
  99         if (trans->ss_resource && (ptrans->usage & PIPE_TRANSFER_WRITE)) {
 100                 struct pipe_blit_info blit;
 101                 memset(&blit, 0, sizeof(blit));
 102
 103                 blit.src.resource = trans->ss_resource;
 104                 blit.src.format = trans->ss_resource->format;
 105                 blit.src.box.width = trans->ss_box.width;
 106                 blit.src.box.height = trans->ss_box.height;
 107                 blit.src.box.depth = 1;
 108
 109                 blit.dst.resource = ptrans->resource;
 110                 blit.dst.format = ptrans->resource->format;
 111                 blit.dst.level = ptrans->level;
 112                 blit.dst.box = trans->ss_box;
 113
 114                 blit.mask = util_format_get_mask(ptrans->resource->format);
 115                 blit.filter = PIPE_TEX_FILTER_NEAREST;
 116
 117                 pctx->blit(pctx, &blit);
 118                 vc4_flush(pctx);
 119
 120                 pipe_resource_reference(&trans->ss_resource, NULL);
 121         }
 122
 123         pipe_resource_reference(&ptrans->resource, NULL);
 124         util_slab_free(&vc4->transfer_pool, ptrans);
 125 }
 126
 127 static struct pipe_resource *
 128 vc4_get_temp_resource(struct pipe_context *pctx,
 129                       struct pipe_resource *prsc,
 130                       const struct pipe_box *box)
 131 {
 132         struct pipe_resource temp_setup;
 133
 134         memset(&temp_setup, 0, sizeof(temp_setup));
 135         temp_setup.target = prsc->target;
 136         temp_setup.format = prsc->format;
 137         temp_setup.width0 = box->width;
 138         temp_setup.height0 = box->height;
 139         temp_setup.depth0 = 1;
 140         temp_setup.array_size = 1;
 141
 142         return pctx->screen->resource_create(pctx->screen, &temp_setup);
 143 }
 144
 145 static void *
 146 vc4_resource_transfer_map(struct pipe_context *pctx,
 147                           struct pipe_resource *prsc,
 148                           unsigned level, unsigned usage,
 149                           const struct pipe_box *box,
 150                           struct pipe_transfer **pptrans)
 151 {
 152         struct vc4_context *vc4 = vc4_context(pctx);
 153         struct vc4_resource *rsc = vc4_resource(prsc);
 154         struct vc4_transfer *trans;
 155         struct pipe_transfer *ptrans;
 156         enum pipe_format format = prsc->format;
 157         char *buf;
 158
 159         if (usage & PIPE_TRANSFER_DISCARD_WHOLE_RESOURCE) {
 160                 if (vc4_resource_bo_alloc(rsc)) {
 161
 162                         /* If it might be bound as one of our vertex buffers,
 163                          * make sure we re-emit vertex buffer state.
 164                          */
 165                         if (prsc->bind & PIPE_BIND_VERTEX_BUFFER)
 166                                 vc4->dirty |= VC4_DIRTY_VTXBUF;
 167                 } else {
 168                         /* If we failed to reallocate, flush everything so
 169                          * that we don't violate any syncing requirements.
 170                          */
 171                         vc4_flush(pctx);
 172                 }
 173         } else if (!(usage & PIPE_TRANSFER_UNSYNCHRONIZED)) {
 174                 if (vc4_cl_references_bo(pctx, rsc->bo)) {
 175                         if ((usage & PIPE_TRANSFER_DISCARD_RANGE) &&
 176                             prsc->last_level == 0 &&
 177                             prsc->width0 == box->width &&
 178                             prsc->height0 == box->height &&
 179                             prsc->depth0 == box->depth &&
 180                             vc4_resource_bo_alloc(rsc)) {
 181                                 if (prsc->bind & PIPE_BIND_VERTEX_BUFFER)
 182                                         vc4->dirty |= VC4_DIRTY_VTXBUF;
 183                         } else {
 184                                 vc4_flush(pctx);
 185                         }
 186                 }
 187         }
 188
 189         if (usage & PIPE_TRANSFER_WRITE)
 190                 rsc->writes++;
 191
 192         trans = util_slab_alloc(&vc4->transfer_pool);
 193         if (!trans)
 194                 return NULL;
 195
 196         /* XXX: Handle DONTBLOCK, DISCARD_RANGE, PERSISTENT, COHERENT. */
 197
 198         /* util_slab_alloc() doesn't zero: */
 199         memset(trans, 0, sizeof(*trans));
 200         ptrans = &trans->base;
 201
 202         pipe_resource_reference(&ptrans->resource, prsc);
 203         ptrans->level = level;
 204         ptrans->usage = usage;
 205         ptrans->box = *box;
 206
 207         /* If the resource is multisampled, we need to resolve to single
 208          * sample.  This seems like it should be handled at a higher layer.
 209          */
 210         if (prsc->nr_samples > 1) {
 211                 trans->ss_resource = vc4_get_temp_resource(pctx, prsc, box);
 212                 if (!trans->ss_resource)
 213                         goto fail;
 214                 assert(!trans->ss_resource->nr_samples);
 215
 216                 /* The ptrans->box gets modified for tile alignment, so save
 217                  * the original box for unmap time.
 218                  */
 219                 trans->ss_box = *box;
 220
 221                 if (usage & PIPE_TRANSFER_READ) {
 222                         struct pipe_blit_info blit;
 223                         memset(&blit, 0, sizeof(blit));
 224
 225                         blit.src.resource = ptrans->resource;
 226                         blit.src.format = ptrans->resource->format;
 227                         blit.src.level = ptrans->level;
 228                         blit.src.box = trans->ss_box;
 229
 230                         blit.dst.resource = trans->ss_resource;
 231                         blit.dst.format = trans->ss_resource->format;
 232                         blit.dst.box.width = trans->ss_box.width;
 233                         blit.dst.box.height = trans->ss_box.height;
 234                         blit.dst.box.depth = 1;
 235
 236                         blit.mask = util_format_get_mask(prsc->format);
 237                         blit.filter = PIPE_TEX_FILTER_NEAREST;
 238
 239                         pctx->blit(pctx, &blit);
 240                         vc4_flush(pctx);
 241                 }
 242
 243                 /* The rest of the mapping process should use our temporary. */
 244                 prsc = trans->ss_resource;
 245                 rsc = vc4_resource(prsc);
 246                 ptrans->box.x = 0;
 247                 ptrans->box.y = 0;
 248                 ptrans->box.z = 0;
 249         }
 250
 251         /* Note that the current kernel implementation is synchronous, so no
 252          * need to do syncing stuff here yet.
 253          */
 254
 255         if (usage & PIPE_TRANSFER_UNSYNCHRONIZED)
 256                 buf = vc4_bo_map_unsynchronized(rsc->bo);
 257         else
 258                 buf = vc4_bo_map(rsc->bo);
 259         if (!buf) {
 260                 fprintf(stderr, "Failed to map bo\n");
 261                 goto fail;
 262         }
 263
 264         *pptrans = ptrans;
 265
 266         struct vc4_resource_slice *slice = &rsc->slices[level];
 267         if (rsc->tiled) {
 268                 uint32_t utile_w = vc4_utile_width(rsc->cpp);
 269                 uint32_t utile_h = vc4_utile_height(rsc->cpp);
 270
 271                 /* No direct mappings of tiled, since we need to manually
 272                  * tile/untile.
 273                  */
 274                 if (usage & PIPE_TRANSFER_MAP_DIRECTLY)
 275                         return NULL;
 276
 277                 /* We need to align the box to utile boundaries, since that's
 278                  * what load/store operate on.
 279                  */
 280                 uint32_t orig_width = ptrans->box.width;
 281                 uint32_t orig_height = ptrans->box.height;
 282                 uint32_t box_start_x = ptrans->box.x & (utile_w - 1);
 283                 uint32_t box_start_y = ptrans->box.y & (utile_h - 1);
 284                 ptrans->box.width += box_start_x;
 285                 ptrans->box.x -= box_start_x;
 286                 ptrans->box.height += box_start_y;
 287                 ptrans->box.y -= box_start_y;
 288                 ptrans->box.width = align(ptrans->box.width, utile_w);
 289                 ptrans->box.height = align(ptrans->box.height, utile_h);
 290
 291                 ptrans->stride = ptrans->box.width * rsc->cpp;
 292                 ptrans->layer_stride = ptrans->stride;
 293
 294                 trans->map = malloc(ptrans->stride * ptrans->box.height);
 295                 if (usage & PIPE_TRANSFER_READ ||
 296                     ptrans->box.width != orig_width ||
 297                     ptrans->box.height != orig_height) {
 298                         vc4_load_tiled_image(trans->map, ptrans->stride,
 299                                              buf + slice->offset +
 300                                              ptrans->box.z * rsc->cube_map_stride,
 301                                              slice->stride,
 302                                              slice->tiling, rsc->cpp,
 303                                              &ptrans->box);
 304                 }
 305                 return (trans->map +
 306                         box_start_x * rsc->cpp +
 307                         box_start_y * ptrans->stride);
 308         } else {
 309                 ptrans->stride = slice->stride;
 310                 ptrans->layer_stride = ptrans->stride;
 311
 312                 return buf + slice->offset +
 313                         ptrans->box.y / util_format_get_blockheight(format) * ptrans->stride +
 314                         ptrans->box.x / util_format_get_blockwidth(format) * rsc->cpp +
 315                         ptrans->box.z * rsc->cube_map_stride;
 316         }
 317
 318
 319 fail:
 320         vc4_resource_transfer_unmap(pctx, ptrans);
 321         return NULL;
 322 }
 323
 324 static void
 325 vc4_resource_destroy(struct pipe_screen *pscreen,
 326                      struct pipe_resource *prsc)
 327 {
 328         struct vc4_resource *rsc = vc4_resource(prsc);
 329         pipe_resource_reference(&rsc->shadow_parent, NULL);
 330         vc4_bo_unreference(&rsc->bo);
 331         free(rsc);
 332 }
 333
 334 static boolean
 335 vc4_resource_get_handle(struct pipe_screen *pscreen,
 336                         struct pipe_resource *prsc,
 337                         struct winsys_handle *handle)
 338 {
 339         struct vc4_resource *rsc = vc4_resource(prsc);
 340
 341         return vc4_screen_bo_get_handle(pscreen, rsc->bo, rsc->slices[0].stride,
 342                                         handle);
 343 }
 344
 345 static const struct u_resource_vtbl vc4_resource_vtbl = {
 346         .resource_get_handle      = vc4_resource_get_handle,
 347         .resource_destroy         = vc4_resource_destroy,
 348         .transfer_map             = vc4_resource_transfer_map,
 349         .transfer_flush_region    = u_default_transfer_flush_region,
 350         .transfer_unmap           = vc4_resource_transfer_unmap,
 351         .transfer_inline_write    = u_default_transfer_inline_write,
 352 };
 353
 354 static void
 355 vc4_setup_slices(struct vc4_resource *rsc)
 356 {
 357         struct pipe_resource *prsc = &rsc->base.b;
 358         uint32_t width = prsc->width0;
 359         uint32_t height = prsc->height0;
 360         uint32_t pot_width = util_next_power_of_two(width);
 361         uint32_t pot_height = util_next_power_of_two(height);
 362         uint32_t offset = 0;
 363         uint32_t utile_w = vc4_utile_width(rsc->cpp);
 364         uint32_t utile_h = vc4_utile_height(rsc->cpp);
 365
 366         for (int i = prsc->last_level; i >= 0; i--) {
 367                 struct vc4_resource_slice *slice = &rsc->slices[i];
 368
 369                 uint32_t level_width, level_height;
 370                 if (i == 0) {
 371                         level_width = width;
 372                         level_height = height;
 373                 } else {
 374                         level_width = u_minify(pot_width, i);
 375                         level_height = u_minify(pot_height, i);
 376                 }
 377
 378                 if (!rsc->tiled) {
 379                         slice->tiling = VC4_TILING_FORMAT_LINEAR;
 380                         if (prsc->nr_samples > 1) {
 381                                 /* MSAA (4x) surfaces are stored as raw tile buffer contents. */
 382                                 level_width = align(level_width, 32);
 383                                 level_height = align(level_height, 32);
 384                         } else {
 385                                 level_width = align(level_width, utile_w);
 386                         }
 387                 } else {
 388                         if (vc4_size_is_lt(level_width, level_height,
 389                                            rsc->cpp)) {
 390                                 slice->tiling = VC4_TILING_FORMAT_LT;
 391                                 level_width = align(level_width, utile_w);
 392                                 level_height = align(level_height, utile_h);
 393                         } else {
 394                                 slice->tiling = VC4_TILING_FORMAT_T;
 395                                 level_width = align(level_width,
 396                                                     4 * 2 * utile_w);
 397                                 level_height = align(level_height,
 398                                                      4 * 2 * utile_h);
 399                         }
 400                 }
 401
 402                 slice->offset = offset;
 403                 slice->stride = (level_width * rsc->cpp *
 404                                  MAX2(prsc->nr_samples, 1));
 405                 slice->size = level_height * slice->stride;
 406
 407                 offset += slice->size;
 408
 409                 if (miptree_debug) {
 410                         static const char tiling_chars[] = {
 411                                 [VC4_TILING_FORMAT_LINEAR] = 'R',
 412                                 [VC4_TILING_FORMAT_LT] = 'L',
 413                                 [VC4_TILING_FORMAT_T] = 'T'
 414                         };
 415                         fprintf(stderr,
 416                                 "rsc setup %p (format %d), %dx%d: "
 417                                 "level %d (%c) -> %dx%d, stride %d@0x%08x\n",
 418                                 rsc, rsc->vc4_format,
 419                                 prsc->width0, prsc->height0,
 420                                 i, tiling_chars[slice->tiling],
 421                                 level_width, level_height,
 422                                 slice->stride, slice->offset);
 423                 }
 424         }
 425
 426         /* The texture base pointer that has to point to level 0 doesn't have
 427          * intra-page bits, so we have to align it, and thus shift up all the
 428          * smaller slices.
 429          */
 430         uint32_t page_align_offset = (align(rsc->slices[0].offset, 4096) -
 431                                       rsc->slices[0].offset);
 432         if (page_align_offset) {
 433                 for (int i = 0; i <= prsc->last_level; i++)
 434                         rsc->slices[i].offset += page_align_offset;
 435         }
 436
 437         /* Cube map faces appear as whole miptrees at a page-aligned offset
 438          * from the first face's miptree.
 439          */
 440         if (prsc->target == PIPE_TEXTURE_CUBE) {
 441                 rsc->cube_map_stride = align(rsc->slices[0].offset +
 442                                              rsc->slices[0].size, 4096);
 443         }
 444 }
 445
 446 static struct vc4_resource *
 447 vc4_resource_setup(struct pipe_screen *pscreen,
 448                    const struct pipe_resource *tmpl)
 449 {
 450         struct vc4_resource *rsc = CALLOC_STRUCT(vc4_resource);
 451         if (!rsc)
 452                 return NULL;
 453         struct pipe_resource *prsc = &rsc->base.b;
 454
 455         *prsc = *tmpl;
 456
 457         pipe_reference_init(&prsc->reference, 1);
 458         prsc->screen = pscreen;
 459
 460         rsc->base.vtbl = &vc4_resource_vtbl;
 461         if (prsc->nr_samples <= 1)
 462                 rsc->cpp = util_format_get_blocksize(tmpl->format);
 463         else
 464                 rsc->cpp = sizeof(uint32_t);
 465
 466         assert(rsc->cpp);
 467
 468         return rsc;
 469 }
 470
 471 static enum vc4_texture_data_type
 472 get_resource_texture_format(struct pipe_resource *prsc)
 473 {
 474         struct vc4_resource *rsc = vc4_resource(prsc);
 475         uint8_t format = vc4_get_tex_format(prsc->format);
 476
 477         if (!rsc->tiled) {
 478                 if (prsc->nr_samples > 1) {
 479                         return ~0;
 480                 } else {
 481                         assert(format == VC4_TEXTURE_TYPE_RGBA8888);
 482                         return VC4_TEXTURE_TYPE_RGBA32R;
 483                 }
 484         }
 485
 486         return format;
 487 }
 488
 489 struct pipe_resource *
 490 vc4_resource_create(struct pipe_screen *pscreen,
 491                     const struct pipe_resource *tmpl)
 492 {
 493         struct vc4_resource *rsc = vc4_resource_setup(pscreen, tmpl);
 494         struct pipe_resource *prsc = &rsc->base.b;
 495
 496         /* We have to make shared be untiled, since we don't have any way to
 497          * communicate metadata about tiling currently.
 498          */
 499         if (tmpl->target == PIPE_BUFFER ||
 500             tmpl->nr_samples > 1 ||
 501             (tmpl->bind & (PIPE_BIND_SCANOUT |
 502                            PIPE_BIND_LINEAR |
 503                            PIPE_BIND_SHARED |
 504                            PIPE_BIND_CURSOR))) {
 505                 rsc->tiled = false;
 506         } else {
 507                 rsc->tiled = true;
 508         }
 509
 510         if (tmpl->target != PIPE_BUFFER)
 511                 rsc->vc4_format = get_resource_texture_format(prsc);
 512
 513         vc4_setup_slices(rsc);
 514         if (!vc4_resource_bo_alloc(rsc))
 515                 goto fail;
 516
 517         return prsc;
 518 fail:
 519         vc4_resource_destroy(pscreen, prsc);
 520         return NULL;
 521 }
 522
 523 static struct pipe_resource *
 524 vc4_resource_from_handle(struct pipe_screen *pscreen,
 525                          const struct pipe_resource *tmpl,
 526                          struct winsys_handle *handle,
 527                          unsigned usage)
 528 {
 529         struct vc4_resource *rsc = vc4_resource_setup(pscreen, tmpl);
 530         struct pipe_resource *prsc = &rsc->base.b;
 531         struct vc4_resource_slice *slice = &rsc->slices[0];
 532
 533         if (!rsc)
 534                 return NULL;
 535
 536         rsc->tiled = false;
 537         rsc->bo = vc4_screen_bo_from_handle(pscreen, handle);
 538         if (!rsc->bo)
 539                 goto fail;
 540
 541         if (!using_vc4_simulator)
 542                 slice->stride = handle->stride;
 543         else
 544                 slice->stride = align(prsc->width0 * rsc->cpp, 16);
 545
 546         slice->tiling = VC4_TILING_FORMAT_LINEAR;
 547
 548         rsc->vc4_format = get_resource_texture_format(prsc);
 549
 550         if (miptree_debug) {
 551                 fprintf(stderr,
 552                         "rsc import %p (format %d), %dx%d: "
 553                         "level 0 (R) -> stride %d@0x%08x\n",
 554                         rsc, rsc->vc4_format,
 555                         prsc->width0, prsc->height0,
 556                         slice->stride, slice->offset);
 557         }
 558
 559         return prsc;
 560
 561 fail:
 562         vc4_resource_destroy(pscreen, prsc);
 563         return NULL;
 564 }
 565
 566 static struct pipe_surface *
 567 vc4_create_surface(struct pipe_context *pctx,
 568                    struct pipe_resource *ptex,
 569                    const struct pipe_surface *surf_tmpl)
 570 {
 571         struct vc4_surface *surface = CALLOC_STRUCT(vc4_surface);
 572         struct vc4_resource *rsc = vc4_resource(ptex);
 573
 574         if (!surface)
 575                 return NULL;
 576
 577         assert(surf_tmpl->u.tex.first_layer == surf_tmpl->u.tex.last_layer);
 578
 579         struct pipe_surface *psurf = &surface->base;
 580         unsigned level = surf_tmpl->u.tex.level;
 581
 582         pipe_reference_init(&psurf->reference, 1);
 583         pipe_resource_reference(&psurf->texture, ptex);
 584
 585         psurf->context = pctx;
 586         psurf->format = surf_tmpl->format;
 587         psurf->width = u_minify(ptex->width0, level);
 588         psurf->height = u_minify(ptex->height0, level);
 589         psurf->u.tex.level = level;
 590         psurf->u.tex.first_layer = surf_tmpl->u.tex.first_layer;
 591         psurf->u.tex.last_layer = surf_tmpl->u.tex.last_layer;
 592         surface->offset = rsc->slices[level].offset;
 593         surface->tiling = rsc->slices[level].tiling;
 594
 595         return &surface->base;
 596 }
 597
 598 static void
 599 vc4_surface_destroy(struct pipe_context *pctx, struct pipe_surface *psurf)
 600 {
 601         pipe_resource_reference(&psurf->texture, NULL);
 602         FREE(psurf);
 603 }
 604
 605 static void
 606 vc4_dump_surface_non_msaa(struct pipe_surface *psurf)
 607 {
 608         struct pipe_resource *prsc = psurf->texture;
 609         struct vc4_resource *rsc = vc4_resource(prsc);
 610         uint32_t *map = vc4_bo_map(rsc->bo);
 611         uint32_t stride = rsc->slices[0].stride / 4;
 612         uint32_t width = psurf->width;
 613         uint32_t height = psurf->height;
 614         uint32_t chunk_w = width / 79;
 615         uint32_t chunk_h = height / 40;
 616         uint32_t found_colors[10];
 617         uint32_t num_found_colors = 0;
 618
 619         if (rsc->vc4_format != VC4_TEXTURE_TYPE_RGBA32R) {
 620                 fprintf(stderr, "%s: Unsupported format %s\n",
 621                         __func__, util_format_short_name(psurf->format));
 622                 return;
 623         }
 624
 625         for (int by = 0; by < height; by += chunk_h) {
 626                 for (int bx = 0; bx < width; bx += chunk_w) {
 627                         int all_found_color = -1; /* nothing found */
 628
 629                         for (int y = by; y < MIN2(height, by + chunk_h); y++) {
 630                                 for (int x = bx; x < MIN2(width, bx + chunk_w); x++) {
 631                                         uint32_t pix = map[y * stride + x];
 632
 633                                         int i;
 634                                         for (i = 0; i < num_found_colors; i++) {
 635                                                 if (pix == found_colors[i])
 636                                                         break;
 637                                         }
 638                                         if (i == num_found_colors &&
 639                                             num_found_colors <
 640                                             ARRAY_SIZE(found_colors)) {
 641                                                 found_colors[num_found_colors++] = pix;
 642                                         }
 643
 644                                         if (i < num_found_colors) {
 645                                                 if (all_found_color == -1)
 646                                                         all_found_color = i;
 647                                                 else if (i != all_found_color)
 648                                                         all_found_color = ARRAY_SIZE(found_colors);
 649                                         }
 650                                 }
 651                         }
 652                         /* If all pixels for this chunk have a consistent
 653                          * value, then print a character for it.  Either a
 654                          * fixed name (particularly common for piglit tests),
 655                          * or a runtime-generated number.
 656                          */
 657                         if (all_found_color >= 0 &&
 658                             all_found_color < ARRAY_SIZE(found_colors)) {
 659                                 static const struct {
 660                                         uint32_t val;
 661                                         const char *c;
 662                                 } named_colors[] = {
 663                                         { 0xff000000, "█" },
 664                                         { 0x00000000, "█" },
 665                                         { 0xffff0000, "r" },
 666                                         { 0xff00ff00, "g" },
 667                                         { 0xff0000ff, "b" },
 668                                         { 0xffffffff, "w" },
 669                                 };
 670                                 int i;
 671                                 for (i = 0; i < ARRAY_SIZE(named_colors); i++) {
 672                                         if (named_colors[i].val ==
 673                                             found_colors[all_found_color]) {
 674                                                 fprintf(stderr, "%s",
 675                                                         named_colors[i].c);
 676                                                 break;
 677                                         }
 678                                 }
 679                                 /* For unnamed colors, print a number and the
 680                                  * numbers will have values printed at the
 681                                  * end.
 682                                  */
 683                                 if (i == ARRAY_SIZE(named_colors)) {
 684                                         fprintf(stderr, "%c",
 685                                                 '0' + all_found_color);
 686                                 }
 687                         } else {
 688                                 /* If there's no consistent color, print this.
 689                                  */
 690                                 fprintf(stderr, ".");
 691                         }
 692                 }
 693                 fprintf(stderr, "\n");
 694         }
 695
 696         for (int i = 0; i < num_found_colors; i++) {
 697                 fprintf(stderr, "color %d: 0x%08x\n", i, found_colors[i]);
 698         }
 699 }
 700
 701 static uint32_t
 702 vc4_surface_msaa_get_sample(struct pipe_surface *psurf,
 703                             uint32_t x, uint32_t y, uint32_t sample)
 704 {
 705         struct pipe_resource *prsc = psurf->texture;
 706         struct vc4_resource *rsc = vc4_resource(prsc);
 707         uint32_t tile_w = 32, tile_h = 32;
 708         uint32_t tiles_w = DIV_ROUND_UP(psurf->width, 32);
 709
 710         uint32_t tile_x = x / tile_w;
 711         uint32_t tile_y = y / tile_h;
 712         uint32_t *tile = (vc4_bo_map(rsc->bo) +
 713                           VC4_TILE_BUFFER_SIZE * (tile_y * tiles_w + tile_x));
 714         uint32_t subtile_x = x % tile_w;
 715         uint32_t subtile_y = y % tile_h;
 716
 717         uint32_t quad_samples = VC4_MAX_SAMPLES * 4;
 718         uint32_t tile_stride = quad_samples * tile_w / 2;
 719
 720         return *((uint32_t *)tile +
 721                  (subtile_y >> 1) * tile_stride +
 722                  (subtile_x >> 1) * quad_samples +
 723                  ((subtile_y & 1) << 1) +
 724                  (subtile_x & 1) +
 725                  sample);
 726 }
 727
 728 static void
 729 vc4_dump_surface_msaa_char(struct pipe_surface *psurf,
 730                            uint32_t start_x, uint32_t start_y,
 731                            uint32_t w, uint32_t h)
 732 {
 733         bool all_same_color = true;
 734         uint32_t all_pix = 0;
 735
 736         for (int y = start_y; y < start_y + h; y++) {
 737                 for (int x = start_x; x < start_x + w; x++) {
 738                         for (int s = 0; s < VC4_MAX_SAMPLES; s++) {
 739                                 uint32_t pix = vc4_surface_msaa_get_sample(psurf,
 740                                                                            x, y,
 741                                                                            s);
 742                                 if (x == start_x && y == start_y)
 743                                         all_pix = pix;
 744                                 else if (all_pix != pix)
 745                                         all_same_color = false;
 746                         }
 747                 }
 748         }
 749         if (all_same_color) {
 750                 static const struct {
 751                         uint32_t val;
 752                         const char *c;
 753                 } named_colors[] = {
 754                         { 0xff000000, "█" },
 755                         { 0x00000000, "█" },
 756                         { 0xffff0000, "r" },
 757                         { 0xff00ff00, "g" },
 758                         { 0xff0000ff, "b" },
 759                         { 0xffffffff, "w" },
 760                 };
 761                 int i;
 762                 for (i = 0; i < ARRAY_SIZE(named_colors); i++) {
 763                         if (named_colors[i].val == all_pix) {
 764                                 fprintf(stderr, "%s",
 765                                         named_colors[i].c);
 766                                 return;
 767                         }
 768                 }
 769                 fprintf(stderr, "x");
 770         } else {
 771                 fprintf(stderr, ".");
 772         }
 773 }
 774
 775 static void
 776 vc4_dump_surface_msaa(struct pipe_surface *psurf)
 777 {
 778         uint32_t tile_w = 32, tile_h = 32;
 779         uint32_t tiles_w = DIV_ROUND_UP(psurf->width, tile_w);
 780         uint32_t tiles_h = DIV_ROUND_UP(psurf->height, tile_h);
 781         uint32_t char_w = 140, char_h = 60;
 782         uint32_t char_w_per_tile = char_w / tiles_w - 1;
 783         uint32_t char_h_per_tile = char_h / tiles_h - 1;
 784         uint32_t found_colors[10];
 785         uint32_t num_found_colors = 0;
 786
 787         fprintf(stderr, "Surface: %dx%d (%dx MSAA)\n",
 788                 psurf->width, psurf->height, psurf->texture->nr_samples);
 789
 790         for (int x = 0; x < (char_w_per_tile + 1) * tiles_w; x++)
 791                 fprintf(stderr, "-");
 792         fprintf(stderr, "\n");
 793
 794         for (int ty = 0; ty < psurf->height; ty += tile_h) {
 795                 for (int y = 0; y < char_h_per_tile; y++) {
 796
 797                         for (int tx = 0; tx < psurf->width; tx += tile_w) {
 798                                 for (int x = 0; x < char_w_per_tile; x++) {
 799                                         uint32_t bx1 = (x * tile_w /
 800                                                         char_w_per_tile);
 801                                         uint32_t bx2 = ((x + 1) * tile_w /
 802                                                         char_w_per_tile);
 803                                         uint32_t by1 = (y * tile_h /
 804                                                         char_h_per_tile);
 805                                         uint32_t by2 = ((y + 1) * tile_h /
 806                                                         char_h_per_tile);
 807
 808                                         vc4_dump_surface_msaa_char(psurf,
 809                                                                    tx + bx1,
 810                                                                    ty + by1,
 811                                                                    bx2 - bx1,
 812                                                                    by2 - by1);
 813                                 }
 814                                 fprintf(stderr, "|");
 815                         }
 816                         fprintf(stderr, "\n");
 817                 }
 818
 819                 for (int x = 0; x < (char_w_per_tile + 1) * tiles_w; x++)
 820                         fprintf(stderr, "-");
 821                 fprintf(stderr, "\n");
 822         }
 823
 824         for (int i = 0; i < num_found_colors; i++) {
 825                 fprintf(stderr, "color %d: 0x%08x\n", i, found_colors[i]);
 826         }
 827 }
 828
 829 /** Debug routine to dump the contents of an 8888 surface to the console */
 830 void
 831 vc4_dump_surface(struct pipe_surface *psurf)
 832 {
 833         if (!psurf)
 834                 return;
 835
 836         if (psurf->texture->nr_samples > 1)
 837                 vc4_dump_surface_msaa(psurf);
 838         else
 839                 vc4_dump_surface_non_msaa(psurf);
 840 }
 841
 842 static void
 843 vc4_flush_resource(struct pipe_context *pctx, struct pipe_resource *resource)
 844 {
 845         /* All calls to flush_resource are followed by a flush of the context,
 846          * so there's nothing to do.
 847          */
 848 }
 849
 850 void
 851 vc4_update_shadow_baselevel_texture(struct pipe_context *pctx,
 852                                     struct pipe_sampler_view *view)
 853 {
 854         struct vc4_resource *shadow = vc4_resource(view->texture);
 855         struct vc4_resource *orig = vc4_resource(shadow->shadow_parent);
 856         assert(orig);
 857
 858         if (shadow->writes == orig->writes && orig->bo->private)
 859                 return;
 860
 861         perf_debug("Updating shadow texture due to %s\n",
 862                    view->u.tex.first_level ? "base level" : "raster layout");
 863
 864         for (int i = 0; i <= shadow->base.b.last_level; i++) {
 865                 unsigned width = u_minify(shadow->base.b.width0, i);
 866                 unsigned height = u_minify(shadow->base.b.height0, i);
 867                 struct pipe_blit_info info = {
 868                         .dst = {
 869                                 .resource = &shadow->base.b,
 870                                 .level = i,
 871                                 .box = {
 872                                         .x = 0,
 873                                         .y = 0,
 874                                         .z = 0,
 875                                         .width = width,
 876                                         .height = height,
 877                                         .depth = 1,
 878                                 },
 879                                 .format = shadow->base.b.format,
 880                         },
 881                         .src = {
 882                                 .resource = &orig->base.b,
 883                                 .level = view->u.tex.first_level + i,
 884                                 .box = {
 885                                         .x = 0,
 886                                         .y = 0,
 887                                         .z = 0,
 888                                         .width = width,
 889                                         .height = height,
 890                                         .depth = 1,
 891                                 },
 892                                 .format = orig->base.b.format,
 893                         },
 894                         .mask = ~0,
 895                 };
 896                 pctx->blit(pctx, &info);
 897         }
 898
 899         shadow->writes = orig->writes;
 900 }
 901
 902 /**
 903  * Converts a 4-byte index buffer to 2 bytes.
 904  *
 905  * Since GLES2 only has support for 1 and 2-byte indices, the hardware doesn't
 906  * include 4-byte index support, and we have to shrink it down.
 907  *
 908  * There's no fallback support for when indices end up being larger than 2^16,
 909  * though it will at least assertion fail.  Also, if the original index data
 910  * was in user memory, it would be nice to not have uploaded it to a VBO
 911  * before translating.
 912  */
 913 struct pipe_resource *
 914 vc4_get_shadow_index_buffer(struct pipe_context *pctx,
 915                             const struct pipe_index_buffer *ib,
 916                             uint32_t count,
 917                             uint32_t *shadow_offset)
 918 {
 919         struct vc4_context *vc4 = vc4_context(pctx);
 920         struct vc4_resource *orig = vc4_resource(ib->buffer);
 921         perf_debug("Fallback conversion for %d uint indices\n", count);
 922
 923         void *data;
 924         struct pipe_resource *shadow_rsc = NULL;
 925         u_upload_alloc(vc4->uploader, 0, count * 2, 4,
 926                        shadow_offset, &shadow_rsc, &data);
 927         uint16_t *dst = data;
 928
 929         struct pipe_transfer *src_transfer = NULL;
 930         const uint32_t *src;
 931         if (ib->user_buffer) {
 932                 src = ib->user_buffer;
 933         } else {
 934                 src = pipe_buffer_map_range(pctx, &orig->base.b,
 935                                             ib->offset,
 936                                             count * 4,
 937                                             PIPE_TRANSFER_READ, &src_transfer);
 938         }
 939
 940         for (int i = 0; i < count; i++) {
 941                 uint32_t src_index = src[i];
 942                 assert(src_index <= 0xffff);
 943                 dst[i] = src_index;
 944         }
 945
 946         if (src_transfer)
 947                 pctx->transfer_unmap(pctx, src_transfer);
 948
 949         return shadow_rsc;
 950 }
 951
 952 void
 953 vc4_resource_screen_init(struct pipe_screen *pscreen)
 954 {
 955         pscreen->resource_create = vc4_resource_create;
 956         pscreen->resource_from_handle = vc4_resource_from_handle;
 957         pscreen->resource_get_handle = u_resource_get_handle_vtbl;
 958         pscreen->resource_destroy = u_resource_destroy_vtbl;
 959 }
 960
 961 void
 962 vc4_resource_context_init(struct pipe_context *pctx)
 963 {
 964         pctx->transfer_map = u_transfer_map_vtbl;
 965         pctx->transfer_flush_region = u_transfer_flush_region_vtbl;
 966         pctx->transfer_unmap = u_transfer_unmap_vtbl;
 967         pctx->transfer_inline_write = u_transfer_inline_write_vtbl;
 968         pctx->create_surface = vc4_create_surface;
 969         pctx->surface_destroy = vc4_surface_destroy;
 970         pctx->resource_copy_region = util_resource_copy_region;
 971         pctx->blit = vc4_blit;
 972         pctx->flush_resource = vc4_flush_resource;
 973 }