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
 119                 pipe_resource_reference(&trans->ss_resource, NULL);
 120         }
 121
 122         pipe_resource_reference(&ptrans->resource, NULL);
 123         slab_free(&vc4->transfer_pool, ptrans);
 124 }
 125
 126 static struct pipe_resource *
 127 vc4_get_temp_resource(struct pipe_context *pctx,
 128                       struct pipe_resource *prsc,
 129                       const struct pipe_box *box)
 130 {
 131         struct pipe_resource temp_setup;
 132
 133         memset(&temp_setup, 0, sizeof(temp_setup));
 134         temp_setup.target = prsc->target;
 135         temp_setup.format = prsc->format;
 136         temp_setup.width0 = box->width;
 137         temp_setup.height0 = box->height;
 138         temp_setup.depth0 = 1;
 139         temp_setup.array_size = 1;
 140
 141         return pctx->screen->resource_create(pctx->screen, &temp_setup);
 142 }
 143
 144 static void *
 145 vc4_resource_transfer_map(struct pipe_context *pctx,
 146                           struct pipe_resource *prsc,
 147                           unsigned level, unsigned usage,
 148                           const struct pipe_box *box,
 149                           struct pipe_transfer **pptrans)
 150 {
 151         struct vc4_context *vc4 = vc4_context(pctx);
 152         struct vc4_resource *rsc = vc4_resource(prsc);
 153         struct vc4_transfer *trans;
 154         struct pipe_transfer *ptrans;
 155         enum pipe_format format = prsc->format;
 156         char *buf;
 157
 158         /* Upgrade DISCARD_RANGE to WHOLE_RESOURCE if the whole resource is
 159          * being mapped.
 160          */
 161         if ((usage & PIPE_TRANSFER_DISCARD_RANGE) &&
 162             !(usage & PIPE_TRANSFER_UNSYNCHRONIZED) &&
 163             !(prsc->flags & PIPE_RESOURCE_FLAG_MAP_COHERENT) &&
 164             prsc->last_level == 0 &&
 165             prsc->width0 == box->width &&
 166             prsc->height0 == box->height &&
 167             prsc->depth0 == box->depth &&
 168             prsc->array_size == 1) {
 169                 usage |= PIPE_TRANSFER_DISCARD_WHOLE_RESOURCE;
 170         }
 171
 172         if (usage & PIPE_TRANSFER_DISCARD_WHOLE_RESOURCE) {
 173                 if (vc4_resource_bo_alloc(rsc)) {
 174                         /* If it might be bound as one of our vertex buffers,
 175                          * make sure we re-emit vertex buffer state.
 176                          */
 177                         if (prsc->bind & PIPE_BIND_VERTEX_BUFFER)
 178                                 vc4->dirty |= VC4_DIRTY_VTXBUF;
 179                 } else {
 180                         /* If we failed to reallocate, flush users so that we
 181                          * don't violate any syncing requirements.
 182                          */
 183                         vc4_flush_jobs_reading_resource(vc4, prsc);
 184                 }
 185         } else if (!(usage & PIPE_TRANSFER_UNSYNCHRONIZED)) {
 186                 /* If we're writing and the buffer is being used by the CL, we
 187                  * have to flush the CL first.  If we're only reading, we need
 188                  * to flush if the CL has written our buffer.
 189                  */
 190                 if (usage & PIPE_TRANSFER_WRITE)
 191                         vc4_flush_jobs_reading_resource(vc4, prsc);
 192                 else
 193                         vc4_flush_jobs_writing_resource(vc4, prsc);
 194         }
 195
 196         if (usage & PIPE_TRANSFER_WRITE) {
 197                 rsc->writes++;
 198                 rsc->initialized_buffers = ~0;
 199         }
 200
 201         trans = slab_alloc(&vc4->transfer_pool);
 202         if (!trans)
 203                 return NULL;
 204
 205         /* XXX: Handle DONTBLOCK, DISCARD_RANGE, PERSISTENT, COHERENT. */
 206
 207         /* slab_alloc_st() doesn't zero: */
 208         memset(trans, 0, sizeof(*trans));
 209         ptrans = &trans->base;
 210
 211         pipe_resource_reference(&ptrans->resource, prsc);
 212         ptrans->level = level;
 213         ptrans->usage = usage;
 214         ptrans->box = *box;
 215
 216         /* If the resource is multisampled, we need to resolve to single
 217          * sample.  This seems like it should be handled at a higher layer.
 218          */
 219         if (prsc->nr_samples > 1) {
 220                 trans->ss_resource = vc4_get_temp_resource(pctx, prsc, box);
 221                 if (!trans->ss_resource)
 222                         goto fail;
 223                 assert(!trans->ss_resource->nr_samples);
 224
 225                 /* The ptrans->box gets modified for tile alignment, so save
 226                  * the original box for unmap time.
 227                  */
 228                 trans->ss_box = *box;
 229
 230                 if (usage & PIPE_TRANSFER_READ) {
 231                         struct pipe_blit_info blit;
 232                         memset(&blit, 0, sizeof(blit));
 233
 234                         blit.src.resource = ptrans->resource;
 235                         blit.src.format = ptrans->resource->format;
 236                         blit.src.level = ptrans->level;
 237                         blit.src.box = trans->ss_box;
 238
 239                         blit.dst.resource = trans->ss_resource;
 240                         blit.dst.format = trans->ss_resource->format;
 241                         blit.dst.box.width = trans->ss_box.width;
 242                         blit.dst.box.height = trans->ss_box.height;
 243                         blit.dst.box.depth = 1;
 244
 245                         blit.mask = util_format_get_mask(prsc->format);
 246                         blit.filter = PIPE_TEX_FILTER_NEAREST;
 247
 248                         pctx->blit(pctx, &blit);
 249                         vc4_flush_jobs_writing_resource(vc4, blit.dst.resource);
 250                 }
 251
 252                 /* The rest of the mapping process should use our temporary. */
 253                 prsc = trans->ss_resource;
 254                 rsc = vc4_resource(prsc);
 255                 ptrans->box.x = 0;
 256                 ptrans->box.y = 0;
 257                 ptrans->box.z = 0;
 258         }
 259
 260         /* Note that the current kernel implementation is synchronous, so no
 261          * need to do syncing stuff here yet.
 262          */
 263
 264         if (usage & PIPE_TRANSFER_UNSYNCHRONIZED)
 265                 buf = vc4_bo_map_unsynchronized(rsc->bo);
 266         else
 267                 buf = vc4_bo_map(rsc->bo);
 268         if (!buf) {
 269                 fprintf(stderr, "Failed to map bo\n");
 270                 goto fail;
 271         }
 272
 273         *pptrans = ptrans;
 274
 275         struct vc4_resource_slice *slice = &rsc->slices[level];
 276         if (rsc->tiled) {
 277                 uint32_t utile_w = vc4_utile_width(rsc->cpp);
 278                 uint32_t utile_h = vc4_utile_height(rsc->cpp);
 279
 280                 /* No direct mappings of tiled, since we need to manually
 281                  * tile/untile.
 282                  */
 283                 if (usage & PIPE_TRANSFER_MAP_DIRECTLY)
 284                         return NULL;
 285
 286                 /* We need to align the box to utile boundaries, since that's
 287                  * what load/store operates on.  This may cause us to need to
 288                  * read out the original contents in that border area.  Right
 289                  * now we just read out the entire contents, including the
 290                  * middle area that will just get overwritten.
 291                  */
 292                 uint32_t box_start_x = ptrans->box.x & (utile_w - 1);
 293                 uint32_t box_start_y = ptrans->box.y & (utile_h - 1);
 294                 bool needs_load = (usage & PIPE_TRANSFER_READ) != 0;
 295
 296                 if (box_start_x) {
 297                         ptrans->box.width += box_start_x;
 298                         ptrans->box.x -= box_start_x;
 299                         needs_load = true;
 300                 }
 301                 if (box_start_y) {
 302                         ptrans->box.height += box_start_y;
 303                         ptrans->box.y -= box_start_y;
 304                         needs_load = true;
 305                 }
 306                 if (ptrans->box.width & (utile_w - 1)) {
 307                         /* We only need to force a load if our border region
 308                          * we're extending into is actually part of the
 309                          * texture.
 310                          */
 311                         uint32_t slice_width = u_minify(prsc->width0, level);
 312                         if (ptrans->box.x + ptrans->box.width != slice_width)
 313                                 needs_load = true;
 314                         ptrans->box.width = align(ptrans->box.width, utile_w);
 315                 }
 316                 if (ptrans->box.height & (utile_h - 1)) {
 317                         uint32_t slice_height = u_minify(prsc->height0, level);
 318                         if (ptrans->box.y + ptrans->box.height != slice_height)
 319                                 needs_load = true;
 320                         ptrans->box.height = align(ptrans->box.height, utile_h);
 321                 }
 322
 323                 ptrans->stride = ptrans->box.width * rsc->cpp;
 324                 ptrans->layer_stride = ptrans->stride * ptrans->box.height;
 325
 326                 trans->map = malloc(ptrans->layer_stride * ptrans->box.depth);
 327
 328                 if (needs_load) {
 329                         vc4_load_tiled_image(trans->map, ptrans->stride,
 330                                              buf + slice->offset +
 331                                              ptrans->box.z * rsc->cube_map_stride,
 332                                              slice->stride,
 333                                              slice->tiling, rsc->cpp,
 334                                              &ptrans->box);
 335                 }
 336                 return (trans->map +
 337                         box_start_x * rsc->cpp +
 338                         box_start_y * ptrans->stride);
 339         } else {
 340                 ptrans->stride = slice->stride;
 341                 ptrans->layer_stride = ptrans->stride;
 342
 343                 return buf + slice->offset +
 344                         ptrans->box.y / util_format_get_blockheight(format) * ptrans->stride +
 345                         ptrans->box.x / util_format_get_blockwidth(format) * rsc->cpp +
 346                         ptrans->box.z * rsc->cube_map_stride;
 347         }
 348
 349
 350 fail:
 351         vc4_resource_transfer_unmap(pctx, ptrans);
 352         return NULL;
 353 }
 354
 355 static void
 356 vc4_resource_destroy(struct pipe_screen *pscreen,
 357                      struct pipe_resource *prsc)
 358 {
 359         struct vc4_resource *rsc = vc4_resource(prsc);
 360         pipe_resource_reference(&rsc->shadow_parent, NULL);
 361         vc4_bo_unreference(&rsc->bo);
 362         free(rsc);
 363 }
 364
 365 static boolean
 366 vc4_resource_get_handle(struct pipe_screen *pscreen,
 367                         struct pipe_resource *prsc,
 368                         struct winsys_handle *handle)
 369 {
 370         struct vc4_resource *rsc = vc4_resource(prsc);
 371
 372         return vc4_screen_bo_get_handle(pscreen, rsc->bo, rsc->slices[0].stride,
 373                                         handle);
 374 }
 375
 376 static const struct u_resource_vtbl vc4_resource_vtbl = {
 377         .resource_get_handle      = vc4_resource_get_handle,
 378         .resource_destroy         = vc4_resource_destroy,
 379         .transfer_map             = vc4_resource_transfer_map,
 380         .transfer_flush_region    = u_default_transfer_flush_region,
 381         .transfer_unmap           = vc4_resource_transfer_unmap,
 382 };
 383
 384 static void
 385 vc4_setup_slices(struct vc4_resource *rsc)
 386 {
 387         struct pipe_resource *prsc = &rsc->base.b;
 388         uint32_t width = prsc->width0;
 389         uint32_t height = prsc->height0;
 390         uint32_t pot_width = util_next_power_of_two(width);
 391         uint32_t pot_height = util_next_power_of_two(height);
 392         uint32_t offset = 0;
 393         uint32_t utile_w = vc4_utile_width(rsc->cpp);
 394         uint32_t utile_h = vc4_utile_height(rsc->cpp);
 395
 396         for (int i = prsc->last_level; i >= 0; i--) {
 397                 struct vc4_resource_slice *slice = &rsc->slices[i];
 398
 399                 uint32_t level_width, level_height;
 400                 if (i == 0) {
 401                         level_width = width;
 402                         level_height = height;
 403                 } else {
 404                         level_width = u_minify(pot_width, i);
 405                         level_height = u_minify(pot_height, i);
 406                 }
 407
 408                 if (!rsc->tiled) {
 409                         slice->tiling = VC4_TILING_FORMAT_LINEAR;
 410                         if (prsc->nr_samples > 1) {
 411                                 /* MSAA (4x) surfaces are stored as raw tile buffer contents. */
 412                                 level_width = align(level_width, 32);
 413                                 level_height = align(level_height, 32);
 414                         } else {
 415                                 level_width = align(level_width, utile_w);
 416                         }
 417                 } else {
 418                         if (vc4_size_is_lt(level_width, level_height,
 419                                            rsc->cpp)) {
 420                                 slice->tiling = VC4_TILING_FORMAT_LT;
 421                                 level_width = align(level_width, utile_w);
 422                                 level_height = align(level_height, utile_h);
 423                         } else {
 424                                 slice->tiling = VC4_TILING_FORMAT_T;
 425                                 level_width = align(level_width,
 426                                                     4 * 2 * utile_w);
 427                                 level_height = align(level_height,
 428                                                      4 * 2 * utile_h);
 429                         }
 430                 }
 431
 432                 slice->offset = offset;
 433                 slice->stride = (level_width * rsc->cpp *
 434                                  MAX2(prsc->nr_samples, 1));
 435                 slice->size = level_height * slice->stride;
 436
 437                 offset += slice->size;
 438
 439                 if (miptree_debug) {
 440                         static const char tiling_chars[] = {
 441                                 [VC4_TILING_FORMAT_LINEAR] = 'R',
 442                                 [VC4_TILING_FORMAT_LT] = 'L',
 443                                 [VC4_TILING_FORMAT_T] = 'T'
 444                         };
 445                         fprintf(stderr,
 446                                 "rsc setup %p (format %s: vc4 %d), %dx%d: "
 447                                 "level %d (%c) -> %dx%d, stride %d@0x%08x\n",
 448                                 rsc,
 449                                 util_format_short_name(prsc->format),
 450                                 rsc->vc4_format,
 451                                 prsc->width0, prsc->height0,
 452                                 i, tiling_chars[slice->tiling],
 453                                 level_width, level_height,
 454                                 slice->stride, slice->offset);
 455                 }
 456         }
 457
 458         /* The texture base pointer that has to point to level 0 doesn't have
 459          * intra-page bits, so we have to align it, and thus shift up all the
 460          * smaller slices.
 461          */
 462         uint32_t page_align_offset = (align(rsc->slices[0].offset, 4096) -
 463                                       rsc->slices[0].offset);
 464         if (page_align_offset) {
 465                 for (int i = 0; i <= prsc->last_level; i++)
 466                         rsc->slices[i].offset += page_align_offset;
 467         }
 468
 469         /* Cube map faces appear as whole miptrees at a page-aligned offset
 470          * from the first face's miptree.
 471          */
 472         if (prsc->target == PIPE_TEXTURE_CUBE) {
 473                 rsc->cube_map_stride = align(rsc->slices[0].offset +
 474                                              rsc->slices[0].size, 4096);
 475         }
 476 }
 477
 478 static struct vc4_resource *
 479 vc4_resource_setup(struct pipe_screen *pscreen,
 480                    const struct pipe_resource *tmpl)
 481 {
 482         struct vc4_resource *rsc = CALLOC_STRUCT(vc4_resource);
 483         if (!rsc)
 484                 return NULL;
 485         struct pipe_resource *prsc = &rsc->base.b;
 486
 487         *prsc = *tmpl;
 488
 489         pipe_reference_init(&prsc->reference, 1);
 490         prsc->screen = pscreen;
 491
 492         rsc->base.vtbl = &vc4_resource_vtbl;
 493         if (prsc->nr_samples <= 1)
 494                 rsc->cpp = util_format_get_blocksize(tmpl->format);
 495         else
 496                 rsc->cpp = sizeof(uint32_t);
 497
 498         assert(rsc->cpp);
 499
 500         return rsc;
 501 }
 502
 503 static enum vc4_texture_data_type
 504 get_resource_texture_format(struct pipe_resource *prsc)
 505 {
 506         struct vc4_resource *rsc = vc4_resource(prsc);
 507         uint8_t format = vc4_get_tex_format(prsc->format);
 508
 509         if (!rsc->tiled) {
 510                 if (prsc->nr_samples > 1) {
 511                         return ~0;
 512                 } else {
 513                         assert(format == VC4_TEXTURE_TYPE_RGBA8888);
 514                         return VC4_TEXTURE_TYPE_RGBA32R;
 515                 }
 516         }
 517
 518         return format;
 519 }
 520
 521 struct pipe_resource *
 522 vc4_resource_create(struct pipe_screen *pscreen,
 523                     const struct pipe_resource *tmpl)
 524 {
 525         struct vc4_resource *rsc = vc4_resource_setup(pscreen, tmpl);
 526         struct pipe_resource *prsc = &rsc->base.b;
 527
 528         /* We have to make shared be untiled, since we don't have any way to
 529          * communicate metadata about tiling currently.
 530          */
 531         if (tmpl->target == PIPE_BUFFER ||
 532             tmpl->nr_samples > 1 ||
 533             (tmpl->bind & (PIPE_BIND_SCANOUT |
 534                            PIPE_BIND_LINEAR |
 535                            PIPE_BIND_SHARED |
 536                            PIPE_BIND_CURSOR))) {
 537                 rsc->tiled = false;
 538         } else {
 539                 rsc->tiled = true;
 540         }
 541
 542         if (tmpl->target != PIPE_BUFFER)
 543                 rsc->vc4_format = get_resource_texture_format(prsc);
 544
 545         vc4_setup_slices(rsc);
 546         if (!vc4_resource_bo_alloc(rsc))
 547                 goto fail;
 548
 549         return prsc;
 550 fail:
 551         vc4_resource_destroy(pscreen, prsc);
 552         return NULL;
 553 }
 554
 555 static struct pipe_resource *
 556 vc4_resource_from_handle(struct pipe_screen *pscreen,
 557                          const struct pipe_resource *tmpl,
 558                          struct winsys_handle *handle,
 559                          unsigned usage)
 560 {
 561         struct vc4_resource *rsc = vc4_resource_setup(pscreen, tmpl);
 562         struct pipe_resource *prsc = &rsc->base.b;
 563         struct vc4_resource_slice *slice = &rsc->slices[0];
 564         uint32_t expected_stride =
 565             align(prsc->width0, vc4_utile_width(rsc->cpp)) * rsc->cpp;
 566
 567         if (!rsc)
 568                 return NULL;
 569
 570         if (handle->stride != expected_stride) {
 571                 static bool warned = false;
 572                 if (!warned) {
 573                         warned = true;
 574                         fprintf(stderr,
 575                                 "Attempting to import %dx%d %s with "
 576                                 "unsupported stride %d instead of %d\n",
 577                                 prsc->width0, prsc->height0,
 578                                 util_format_short_name(prsc->format),
 579                                 handle->stride,
 580                                 expected_stride);
 581                 }
 582                 goto fail;
 583         }
 584
 585         rsc->tiled = false;
 586         rsc->bo = vc4_screen_bo_from_handle(pscreen, handle);
 587         if (!rsc->bo)
 588                 goto fail;
 589
 590         slice->stride = handle->stride;
 591         slice->tiling = VC4_TILING_FORMAT_LINEAR;
 592
 593         rsc->vc4_format = get_resource_texture_format(prsc);
 594
 595         if (miptree_debug) {
 596                 fprintf(stderr,
 597                         "rsc import %p (format %d), %dx%d: "
 598                         "level 0 (R) -> stride %d@0x%08x\n",
 599                         rsc, rsc->vc4_format,
 600                         prsc->width0, prsc->height0,
 601                         slice->stride, slice->offset);
 602         }
 603
 604         return prsc;
 605
 606 fail:
 607         vc4_resource_destroy(pscreen, prsc);
 608         return NULL;
 609 }
 610
 611 static struct pipe_surface *
 612 vc4_create_surface(struct pipe_context *pctx,
 613                    struct pipe_resource *ptex,
 614                    const struct pipe_surface *surf_tmpl)
 615 {
 616         struct vc4_surface *surface = CALLOC_STRUCT(vc4_surface);
 617         struct vc4_resource *rsc = vc4_resource(ptex);
 618
 619         if (!surface)
 620                 return NULL;
 621
 622         assert(surf_tmpl->u.tex.first_layer == surf_tmpl->u.tex.last_layer);
 623
 624         struct pipe_surface *psurf = &surface->base;
 625         unsigned level = surf_tmpl->u.tex.level;
 626
 627         pipe_reference_init(&psurf->reference, 1);
 628         pipe_resource_reference(&psurf->texture, ptex);
 629
 630         psurf->context = pctx;
 631         psurf->format = surf_tmpl->format;
 632         psurf->width = u_minify(ptex->width0, level);
 633         psurf->height = u_minify(ptex->height0, level);
 634         psurf->u.tex.level = level;
 635         psurf->u.tex.first_layer = surf_tmpl->u.tex.first_layer;
 636         psurf->u.tex.last_layer = surf_tmpl->u.tex.last_layer;
 637         surface->offset = (rsc->slices[level].offset +
 638                            psurf->u.tex.first_layer * rsc->cube_map_stride);
 639         surface->tiling = rsc->slices[level].tiling;
 640
 641         return &surface->base;
 642 }
 643
 644 static void
 645 vc4_surface_destroy(struct pipe_context *pctx, struct pipe_surface *psurf)
 646 {
 647         pipe_resource_reference(&psurf->texture, NULL);
 648         FREE(psurf);
 649 }
 650
 651 static void
 652 vc4_dump_surface_non_msaa(struct pipe_surface *psurf)
 653 {
 654         struct pipe_resource *prsc = psurf->texture;
 655         struct vc4_resource *rsc = vc4_resource(prsc);
 656         uint32_t *map = vc4_bo_map(rsc->bo);
 657         uint32_t stride = rsc->slices[0].stride / 4;
 658         uint32_t width = psurf->width;
 659         uint32_t height = psurf->height;
 660         uint32_t chunk_w = width / 79;
 661         uint32_t chunk_h = height / 40;
 662         uint32_t found_colors[10];
 663         uint32_t num_found_colors = 0;
 664
 665         if (rsc->vc4_format != VC4_TEXTURE_TYPE_RGBA32R) {
 666                 fprintf(stderr, "%s: Unsupported format %s\n",
 667                         __func__, util_format_short_name(psurf->format));
 668                 return;
 669         }
 670
 671         for (int by = 0; by < height; by += chunk_h) {
 672                 for (int bx = 0; bx < width; bx += chunk_w) {
 673                         int all_found_color = -1; /* nothing found */
 674
 675                         for (int y = by; y < MIN2(height, by + chunk_h); y++) {
 676                                 for (int x = bx; x < MIN2(width, bx + chunk_w); x++) {
 677                                         uint32_t pix = map[y * stride + x];
 678
 679                                         int i;
 680                                         for (i = 0; i < num_found_colors; i++) {
 681                                                 if (pix == found_colors[i])
 682                                                         break;
 683                                         }
 684                                         if (i == num_found_colors &&
 685                                             num_found_colors <
 686                                             ARRAY_SIZE(found_colors)) {
 687                                                 found_colors[num_found_colors++] = pix;
 688                                         }
 689
 690                                         if (i < num_found_colors) {
 691                                                 if (all_found_color == -1)
 692                                                         all_found_color = i;
 693                                                 else if (i != all_found_color)
 694                                                         all_found_color = ARRAY_SIZE(found_colors);
 695                                         }
 696                                 }
 697                         }
 698                         /* If all pixels for this chunk have a consistent
 699                          * value, then print a character for it.  Either a
 700                          * fixed name (particularly common for piglit tests),
 701                          * or a runtime-generated number.
 702                          */
 703                         if (all_found_color >= 0 &&
 704                             all_found_color < ARRAY_SIZE(found_colors)) {
 705                                 static const struct {
 706                                         uint32_t val;
 707                                         const char *c;
 708                                 } named_colors[] = {
 709                                         { 0xff000000, "█" },
 710                                         { 0x00000000, "█" },
 711                                         { 0xffff0000, "r" },
 712                                         { 0xff00ff00, "g" },
 713                                         { 0xff0000ff, "b" },
 714                                         { 0xffffffff, "w" },
 715                                 };
 716                                 int i;
 717                                 for (i = 0; i < ARRAY_SIZE(named_colors); i++) {
 718                                         if (named_colors[i].val ==
 719                                             found_colors[all_found_color]) {
 720                                                 fprintf(stderr, "%s",
 721                                                         named_colors[i].c);
 722                                                 break;
 723                                         }
 724                                 }
 725                                 /* For unnamed colors, print a number and the
 726                                  * numbers will have values printed at the
 727                                  * end.
 728                                  */
 729                                 if (i == ARRAY_SIZE(named_colors)) {
 730                                         fprintf(stderr, "%c",
 731                                                 '0' + all_found_color);
 732                                 }
 733                         } else {
 734                                 /* If there's no consistent color, print this.
 735                                  */
 736                                 fprintf(stderr, ".");
 737                         }
 738                 }
 739                 fprintf(stderr, "\n");
 740         }
 741
 742         for (int i = 0; i < num_found_colors; i++) {
 743                 fprintf(stderr, "color %d: 0x%08x\n", i, found_colors[i]);
 744         }
 745 }
 746
 747 static uint32_t
 748 vc4_surface_msaa_get_sample(struct pipe_surface *psurf,
 749                             uint32_t x, uint32_t y, uint32_t sample)
 750 {
 751         struct pipe_resource *prsc = psurf->texture;
 752         struct vc4_resource *rsc = vc4_resource(prsc);
 753         uint32_t tile_w = 32, tile_h = 32;
 754         uint32_t tiles_w = DIV_ROUND_UP(psurf->width, 32);
 755
 756         uint32_t tile_x = x / tile_w;
 757         uint32_t tile_y = y / tile_h;
 758         uint32_t *tile = (vc4_bo_map(rsc->bo) +
 759                           VC4_TILE_BUFFER_SIZE * (tile_y * tiles_w + tile_x));
 760         uint32_t subtile_x = x % tile_w;
 761         uint32_t subtile_y = y % tile_h;
 762
 763         uint32_t quad_samples = VC4_MAX_SAMPLES * 4;
 764         uint32_t tile_stride = quad_samples * tile_w / 2;
 765
 766         return *((uint32_t *)tile +
 767                  (subtile_y >> 1) * tile_stride +
 768                  (subtile_x >> 1) * quad_samples +
 769                  ((subtile_y & 1) << 1) +
 770                  (subtile_x & 1) +
 771                  sample);
 772 }
 773
 774 static void
 775 vc4_dump_surface_msaa_char(struct pipe_surface *psurf,
 776                            uint32_t start_x, uint32_t start_y,
 777                            uint32_t w, uint32_t h)
 778 {
 779         bool all_same_color = true;
 780         uint32_t all_pix = 0;
 781
 782         for (int y = start_y; y < start_y + h; y++) {
 783                 for (int x = start_x; x < start_x + w; x++) {
 784                         for (int s = 0; s < VC4_MAX_SAMPLES; s++) {
 785                                 uint32_t pix = vc4_surface_msaa_get_sample(psurf,
 786                                                                            x, y,
 787                                                                            s);
 788                                 if (x == start_x && y == start_y)
 789                                         all_pix = pix;
 790                                 else if (all_pix != pix)
 791                                         all_same_color = false;
 792                         }
 793                 }
 794         }
 795         if (all_same_color) {
 796                 static const struct {
 797                         uint32_t val;
 798                         const char *c;
 799                 } named_colors[] = {
 800                         { 0xff000000, "█" },
 801                         { 0x00000000, "█" },
 802                         { 0xffff0000, "r" },
 803                         { 0xff00ff00, "g" },
 804                         { 0xff0000ff, "b" },
 805                         { 0xffffffff, "w" },
 806                 };
 807                 int i;
 808                 for (i = 0; i < ARRAY_SIZE(named_colors); i++) {
 809                         if (named_colors[i].val == all_pix) {
 810                                 fprintf(stderr, "%s",
 811                                         named_colors[i].c);
 812                                 return;
 813                         }
 814                 }
 815                 fprintf(stderr, "x");
 816         } else {
 817                 fprintf(stderr, ".");
 818         }
 819 }
 820
 821 static void
 822 vc4_dump_surface_msaa(struct pipe_surface *psurf)
 823 {
 824         uint32_t tile_w = 32, tile_h = 32;
 825         uint32_t tiles_w = DIV_ROUND_UP(psurf->width, tile_w);
 826         uint32_t tiles_h = DIV_ROUND_UP(psurf->height, tile_h);
 827         uint32_t char_w = 140, char_h = 60;
 828         uint32_t char_w_per_tile = char_w / tiles_w - 1;
 829         uint32_t char_h_per_tile = char_h / tiles_h - 1;
 830         uint32_t found_colors[10];
 831         uint32_t num_found_colors = 0;
 832
 833         fprintf(stderr, "Surface: %dx%d (%dx MSAA)\n",
 834                 psurf->width, psurf->height, psurf->texture->nr_samples);
 835
 836         for (int x = 0; x < (char_w_per_tile + 1) * tiles_w; x++)
 837                 fprintf(stderr, "-");
 838         fprintf(stderr, "\n");
 839
 840         for (int ty = 0; ty < psurf->height; ty += tile_h) {
 841                 for (int y = 0; y < char_h_per_tile; y++) {
 842
 843                         for (int tx = 0; tx < psurf->width; tx += tile_w) {
 844                                 for (int x = 0; x < char_w_per_tile; x++) {
 845                                         uint32_t bx1 = (x * tile_w /
 846                                                         char_w_per_tile);
 847                                         uint32_t bx2 = ((x + 1) * tile_w /
 848                                                         char_w_per_tile);
 849                                         uint32_t by1 = (y * tile_h /
 850                                                         char_h_per_tile);
 851                                         uint32_t by2 = ((y + 1) * tile_h /
 852                                                         char_h_per_tile);
 853
 854                                         vc4_dump_surface_msaa_char(psurf,
 855                                                                    tx + bx1,
 856                                                                    ty + by1,
 857                                                                    bx2 - bx1,
 858                                                                    by2 - by1);
 859                                 }
 860                                 fprintf(stderr, "|");
 861                         }
 862                         fprintf(stderr, "\n");
 863                 }
 864
 865                 for (int x = 0; x < (char_w_per_tile + 1) * tiles_w; x++)
 866                         fprintf(stderr, "-");
 867                 fprintf(stderr, "\n");
 868         }
 869
 870         for (int i = 0; i < num_found_colors; i++) {
 871                 fprintf(stderr, "color %d: 0x%08x\n", i, found_colors[i]);
 872         }
 873 }
 874
 875 /** Debug routine to dump the contents of an 8888 surface to the console */
 876 void
 877 vc4_dump_surface(struct pipe_surface *psurf)
 878 {
 879         if (!psurf)
 880                 return;
 881
 882         if (psurf->texture->nr_samples > 1)
 883                 vc4_dump_surface_msaa(psurf);
 884         else
 885                 vc4_dump_surface_non_msaa(psurf);
 886 }
 887
 888 static void
 889 vc4_flush_resource(struct pipe_context *pctx, struct pipe_resource *resource)
 890 {
 891         /* All calls to flush_resource are followed by a flush of the context,
 892          * so there's nothing to do.
 893          */
 894 }
 895
 896 void
 897 vc4_update_shadow_baselevel_texture(struct pipe_context *pctx,
 898                                     struct pipe_sampler_view *view)
 899 {
 900         struct vc4_resource *shadow = vc4_resource(view->texture);
 901         struct vc4_resource *orig = vc4_resource(shadow->shadow_parent);
 902         assert(orig);
 903
 904         if (shadow->writes == orig->writes && orig->bo->private)
 905                 return;
 906
 907         perf_debug("Updating %dx%d@%d shadow texture due to %s\n",
 908                    orig->base.b.width0, orig->base.b.height0,
 909                    view->u.tex.first_level,
 910                    view->u.tex.first_level ? "base level" : "raster layout");
 911
 912         for (int i = 0; i <= shadow->base.b.last_level; i++) {
 913                 unsigned width = u_minify(shadow->base.b.width0, i);
 914                 unsigned height = u_minify(shadow->base.b.height0, i);
 915                 struct pipe_blit_info info = {
 916                         .dst = {
 917                                 .resource = &shadow->base.b,
 918                                 .level = i,
 919                                 .box = {
 920                                         .x = 0,
 921                                         .y = 0,
 922                                         .z = 0,
 923                                         .width = width,
 924                                         .height = height,
 925                                         .depth = 1,
 926                                 },
 927                                 .format = shadow->base.b.format,
 928                         },
 929                         .src = {
 930                                 .resource = &orig->base.b,
 931                                 .level = view->u.tex.first_level + i,
 932                                 .box = {
 933                                         .x = 0,
 934                                         .y = 0,
 935                                         .z = 0,
 936                                         .width = width,
 937                                         .height = height,
 938                                         .depth = 1,
 939                                 },
 940                                 .format = orig->base.b.format,
 941                         },
 942                         .mask = ~0,
 943                 };
 944                 pctx->blit(pctx, &info);
 945         }
 946
 947         shadow->writes = orig->writes;
 948 }
 949
 950 /**
 951  * Converts a 4-byte index buffer to 2 bytes.
 952  *
 953  * Since GLES2 only has support for 1 and 2-byte indices, the hardware doesn't
 954  * include 4-byte index support, and we have to shrink it down.
 955  *
 956  * There's no fallback support for when indices end up being larger than 2^16,
 957  * though it will at least assertion fail.  Also, if the original index data
 958  * was in user memory, it would be nice to not have uploaded it to a VBO
 959  * before translating.
 960  */
 961 struct pipe_resource *
 962 vc4_get_shadow_index_buffer(struct pipe_context *pctx,
 963                             const struct pipe_index_buffer *ib,
 964                             uint32_t count,
 965                             uint32_t *shadow_offset)
 966 {
 967         struct vc4_context *vc4 = vc4_context(pctx);
 968         struct vc4_resource *orig = vc4_resource(ib->buffer);
 969         perf_debug("Fallback conversion for %d uint indices\n", count);
 970
 971         void *data;
 972         struct pipe_resource *shadow_rsc = NULL;
 973         u_upload_alloc(vc4->uploader, 0, count * 2, 4,
 974                        shadow_offset, &shadow_rsc, &data);
 975         uint16_t *dst = data;
 976
 977         struct pipe_transfer *src_transfer = NULL;
 978         const uint32_t *src;
 979         if (ib->user_buffer) {
 980                 src = ib->user_buffer;
 981         } else {
 982                 src = pipe_buffer_map_range(pctx, &orig->base.b,
 983                                             ib->offset,
 984                                             count * 4,
 985                                             PIPE_TRANSFER_READ, &src_transfer);
 986         }
 987
 988         for (int i = 0; i < count; i++) {
 989                 uint32_t src_index = src[i];
 990                 assert(src_index <= 0xffff);
 991                 dst[i] = src_index;
 992         }
 993
 994         if (src_transfer)
 995                 pctx->transfer_unmap(pctx, src_transfer);
 996
 997         return shadow_rsc;
 998 }
 999
1000 void
1001 vc4_resource_screen_init(struct pipe_screen *pscreen)
1002 {
1003         pscreen->resource_create = vc4_resource_create;
1004         pscreen->resource_from_handle = vc4_resource_from_handle;
1005         pscreen->resource_get_handle = u_resource_get_handle_vtbl;
1006         pscreen->resource_destroy = u_resource_destroy_vtbl;
1007 }
1008
1009 void
1010 vc4_resource_context_init(struct pipe_context *pctx)
1011 {
1012         pctx->transfer_map = u_transfer_map_vtbl;
1013         pctx->transfer_flush_region = u_transfer_flush_region_vtbl;
1014         pctx->transfer_unmap = u_transfer_unmap_vtbl;
1015         pctx->buffer_subdata = u_default_buffer_subdata;
1016         pctx->texture_subdata = u_default_texture_subdata;
1017         pctx->create_surface = vc4_create_surface;
1018         pctx->surface_destroy = vc4_surface_destroy;
1019         pctx->resource_copy_region = util_resource_copy_region;
1020         pctx->blit = vc4_blit;
1021         pctx->flush_resource = vc4_flush_resource;
1022 }