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 we're writing and the buffer is being used by the CL, we
 175                  * have to flush the CL first.  If we're only reading, we need
 176                  * to flush if the CL has written our buffer.
 177                  */
 178                 if (vc4_cl_references_bo(pctx, rsc->bo,
 179                                          usage & PIPE_TRANSFER_WRITE)) {
 180                         if ((usage & PIPE_TRANSFER_DISCARD_RANGE) &&
 181                             prsc->last_level == 0 &&
 182                             prsc->width0 == box->width &&
 183                             prsc->height0 == box->height &&
 184                             prsc->depth0 == box->depth &&
 185                             vc4_resource_bo_alloc(rsc)) {
 186                                 if (prsc->bind & PIPE_BIND_VERTEX_BUFFER)
 187                                         vc4->dirty |= VC4_DIRTY_VTXBUF;
 188                         } else {
 189                                 vc4_flush(pctx);
 190                         }
 191                 }
 192         }
 193
 194         if (usage & PIPE_TRANSFER_WRITE)
 195                 rsc->writes++;
 196
 197         trans = util_slab_alloc(&vc4->transfer_pool);
 198         if (!trans)
 199                 return NULL;
 200
 201         /* XXX: Handle DONTBLOCK, DISCARD_RANGE, PERSISTENT, COHERENT. */
 202
 203         /* util_slab_alloc() doesn't zero: */
 204         memset(trans, 0, sizeof(*trans));
 205         ptrans = &trans->base;
 206
 207         pipe_resource_reference(&ptrans->resource, prsc);
 208         ptrans->level = level;
 209         ptrans->usage = usage;
 210         ptrans->box = *box;
 211
 212         /* If the resource is multisampled, we need to resolve to single
 213          * sample.  This seems like it should be handled at a higher layer.
 214          */
 215         if (prsc->nr_samples > 1) {
 216                 trans->ss_resource = vc4_get_temp_resource(pctx, prsc, box);
 217                 if (!trans->ss_resource)
 218                         goto fail;
 219                 assert(!trans->ss_resource->nr_samples);
 220
 221                 /* The ptrans->box gets modified for tile alignment, so save
 222                  * the original box for unmap time.
 223                  */
 224                 trans->ss_box = *box;
 225
 226                 if (usage & PIPE_TRANSFER_READ) {
 227                         struct pipe_blit_info blit;
 228                         memset(&blit, 0, sizeof(blit));
 229
 230                         blit.src.resource = ptrans->resource;
 231                         blit.src.format = ptrans->resource->format;
 232                         blit.src.level = ptrans->level;
 233                         blit.src.box = trans->ss_box;
 234
 235                         blit.dst.resource = trans->ss_resource;
 236                         blit.dst.format = trans->ss_resource->format;
 237                         blit.dst.box.width = trans->ss_box.width;
 238                         blit.dst.box.height = trans->ss_box.height;
 239                         blit.dst.box.depth = 1;
 240
 241                         blit.mask = util_format_get_mask(prsc->format);
 242                         blit.filter = PIPE_TEX_FILTER_NEAREST;
 243
 244                         pctx->blit(pctx, &blit);
 245                         vc4_flush(pctx);
 246                 }
 247
 248                 /* The rest of the mapping process should use our temporary. */
 249                 prsc = trans->ss_resource;
 250                 rsc = vc4_resource(prsc);
 251                 ptrans->box.x = 0;
 252                 ptrans->box.y = 0;
 253                 ptrans->box.z = 0;
 254         }
 255
 256         /* Note that the current kernel implementation is synchronous, so no
 257          * need to do syncing stuff here yet.
 258          */
 259
 260         if (usage & PIPE_TRANSFER_UNSYNCHRONIZED)
 261                 buf = vc4_bo_map_unsynchronized(rsc->bo);
 262         else
 263                 buf = vc4_bo_map(rsc->bo);
 264         if (!buf) {
 265                 fprintf(stderr, "Failed to map bo\n");
 266                 goto fail;
 267         }
 268
 269         *pptrans = ptrans;
 270
 271         struct vc4_resource_slice *slice = &rsc->slices[level];
 272         if (rsc->tiled) {
 273                 uint32_t utile_w = vc4_utile_width(rsc->cpp);
 274                 uint32_t utile_h = vc4_utile_height(rsc->cpp);
 275
 276                 /* No direct mappings of tiled, since we need to manually
 277                  * tile/untile.
 278                  */
 279                 if (usage & PIPE_TRANSFER_MAP_DIRECTLY)
 280                         return NULL;
 281
 282                 /* We need to align the box to utile boundaries, since that's
 283                  * what load/store operate on.
 284                  */
 285                 uint32_t orig_width = ptrans->box.width;
 286                 uint32_t orig_height = ptrans->box.height;
 287                 uint32_t box_start_x = ptrans->box.x & (utile_w - 1);
 288                 uint32_t box_start_y = ptrans->box.y & (utile_h - 1);
 289                 ptrans->box.width += box_start_x;
 290                 ptrans->box.x -= box_start_x;
 291                 ptrans->box.height += box_start_y;
 292                 ptrans->box.y -= box_start_y;
 293                 ptrans->box.width = align(ptrans->box.width, utile_w);
 294                 ptrans->box.height = align(ptrans->box.height, utile_h);
 295
 296                 ptrans->stride = ptrans->box.width * rsc->cpp;
 297                 ptrans->layer_stride = ptrans->stride * ptrans->box.height;
 298
 299                 trans->map = malloc(ptrans->layer_stride * ptrans->box.depth);
 300                 if (usage & PIPE_TRANSFER_READ ||
 301                     ptrans->box.width != orig_width ||
 302                     ptrans->box.height != orig_height) {
 303                         vc4_load_tiled_image(trans->map, ptrans->stride,
 304                                              buf + slice->offset +
 305                                              ptrans->box.z * rsc->cube_map_stride,
 306                                              slice->stride,
 307                                              slice->tiling, rsc->cpp,
 308                                              &ptrans->box);
 309                 }
 310                 return (trans->map +
 311                         box_start_x * rsc->cpp +
 312                         box_start_y * ptrans->stride);
 313         } else {
 314                 ptrans->stride = slice->stride;
 315                 ptrans->layer_stride = ptrans->stride;
 316
 317                 return buf + slice->offset +
 318                         ptrans->box.y / util_format_get_blockheight(format) * ptrans->stride +
 319                         ptrans->box.x / util_format_get_blockwidth(format) * rsc->cpp +
 320                         ptrans->box.z * rsc->cube_map_stride;
 321         }
 322
 323
 324 fail:
 325         vc4_resource_transfer_unmap(pctx, ptrans);
 326         return NULL;
 327 }
 328
 329 static void
 330 vc4_resource_destroy(struct pipe_screen *pscreen,
 331                      struct pipe_resource *prsc)
 332 {
 333         struct vc4_resource *rsc = vc4_resource(prsc);
 334         pipe_resource_reference(&rsc->shadow_parent, NULL);
 335         vc4_bo_unreference(&rsc->bo);
 336         free(rsc);
 337 }
 338
 339 static boolean
 340 vc4_resource_get_handle(struct pipe_screen *pscreen,
 341                         struct pipe_resource *prsc,
 342                         struct winsys_handle *handle)
 343 {
 344         struct vc4_resource *rsc = vc4_resource(prsc);
 345
 346         return vc4_screen_bo_get_handle(pscreen, rsc->bo, rsc->slices[0].stride,
 347                                         handle);
 348 }
 349
 350 static const struct u_resource_vtbl vc4_resource_vtbl = {
 351         .resource_get_handle      = vc4_resource_get_handle,
 352         .resource_destroy         = vc4_resource_destroy,
 353         .transfer_map             = vc4_resource_transfer_map,
 354         .transfer_flush_region    = u_default_transfer_flush_region,
 355         .transfer_unmap           = vc4_resource_transfer_unmap,
 356         .transfer_inline_write    = u_default_transfer_inline_write,
 357 };
 358
 359 static void
 360 vc4_setup_slices(struct vc4_resource *rsc)
 361 {
 362         struct pipe_resource *prsc = &rsc->base.b;
 363         uint32_t width = prsc->width0;
 364         uint32_t height = prsc->height0;
 365         uint32_t pot_width = util_next_power_of_two(width);
 366         uint32_t pot_height = util_next_power_of_two(height);
 367         uint32_t offset = 0;
 368         uint32_t utile_w = vc4_utile_width(rsc->cpp);
 369         uint32_t utile_h = vc4_utile_height(rsc->cpp);
 370
 371         for (int i = prsc->last_level; i >= 0; i--) {
 372                 struct vc4_resource_slice *slice = &rsc->slices[i];
 373
 374                 uint32_t level_width, level_height;
 375                 if (i == 0) {
 376                         level_width = width;
 377                         level_height = height;
 378                 } else {
 379                         level_width = u_minify(pot_width, i);
 380                         level_height = u_minify(pot_height, i);
 381                 }
 382
 383                 if (!rsc->tiled) {
 384                         slice->tiling = VC4_TILING_FORMAT_LINEAR;
 385                         if (prsc->nr_samples > 1) {
 386                                 /* MSAA (4x) surfaces are stored as raw tile buffer contents. */
 387                                 level_width = align(level_width, 32);
 388                                 level_height = align(level_height, 32);
 389                         } else {
 390                                 level_width = align(level_width, utile_w);
 391                         }
 392                 } else {
 393                         if (vc4_size_is_lt(level_width, level_height,
 394                                            rsc->cpp)) {
 395                                 slice->tiling = VC4_TILING_FORMAT_LT;
 396                                 level_width = align(level_width, utile_w);
 397                                 level_height = align(level_height, utile_h);
 398                         } else {
 399                                 slice->tiling = VC4_TILING_FORMAT_T;
 400                                 level_width = align(level_width,
 401                                                     4 * 2 * utile_w);
 402                                 level_height = align(level_height,
 403                                                      4 * 2 * utile_h);
 404                         }
 405                 }
 406
 407                 slice->offset = offset;
 408                 slice->stride = (level_width * rsc->cpp *
 409                                  MAX2(prsc->nr_samples, 1));
 410                 slice->size = level_height * slice->stride;
 411
 412                 offset += slice->size;
 413
 414                 if (miptree_debug) {
 415                         static const char tiling_chars[] = {
 416                                 [VC4_TILING_FORMAT_LINEAR] = 'R',
 417                                 [VC4_TILING_FORMAT_LT] = 'L',
 418                                 [VC4_TILING_FORMAT_T] = 'T'
 419                         };
 420                         fprintf(stderr,
 421                                 "rsc setup %p (format %d), %dx%d: "
 422                                 "level %d (%c) -> %dx%d, stride %d@0x%08x\n",
 423                                 rsc, rsc->vc4_format,
 424                                 prsc->width0, prsc->height0,
 425                                 i, tiling_chars[slice->tiling],
 426                                 level_width, level_height,
 427                                 slice->stride, slice->offset);
 428                 }
 429         }
 430
 431         /* The texture base pointer that has to point to level 0 doesn't have
 432          * intra-page bits, so we have to align it, and thus shift up all the
 433          * smaller slices.
 434          */
 435         uint32_t page_align_offset = (align(rsc->slices[0].offset, 4096) -
 436                                       rsc->slices[0].offset);
 437         if (page_align_offset) {
 438                 for (int i = 0; i <= prsc->last_level; i++)
 439                         rsc->slices[i].offset += page_align_offset;
 440         }
 441
 442         /* Cube map faces appear as whole miptrees at a page-aligned offset
 443          * from the first face's miptree.
 444          */
 445         if (prsc->target == PIPE_TEXTURE_CUBE) {
 446                 rsc->cube_map_stride = align(rsc->slices[0].offset +
 447                                              rsc->slices[0].size, 4096);
 448         }
 449 }
 450
 451 static struct vc4_resource *
 452 vc4_resource_setup(struct pipe_screen *pscreen,
 453                    const struct pipe_resource *tmpl)
 454 {
 455         struct vc4_resource *rsc = CALLOC_STRUCT(vc4_resource);
 456         if (!rsc)
 457                 return NULL;
 458         struct pipe_resource *prsc = &rsc->base.b;
 459
 460         *prsc = *tmpl;
 461
 462         pipe_reference_init(&prsc->reference, 1);
 463         prsc->screen = pscreen;
 464
 465         rsc->base.vtbl = &vc4_resource_vtbl;
 466         if (prsc->nr_samples <= 1)
 467                 rsc->cpp = util_format_get_blocksize(tmpl->format);
 468         else
 469                 rsc->cpp = sizeof(uint32_t);
 470
 471         assert(rsc->cpp);
 472
 473         return rsc;
 474 }
 475
 476 static enum vc4_texture_data_type
 477 get_resource_texture_format(struct pipe_resource *prsc)
 478 {
 479         struct vc4_resource *rsc = vc4_resource(prsc);
 480         uint8_t format = vc4_get_tex_format(prsc->format);
 481
 482         if (!rsc->tiled) {
 483                 if (prsc->nr_samples > 1) {
 484                         return ~0;
 485                 } else {
 486                         assert(format == VC4_TEXTURE_TYPE_RGBA8888);
 487                         return VC4_TEXTURE_TYPE_RGBA32R;
 488                 }
 489         }
 490
 491         return format;
 492 }
 493
 494 struct pipe_resource *
 495 vc4_resource_create(struct pipe_screen *pscreen,
 496                     const struct pipe_resource *tmpl)
 497 {
 498         struct vc4_resource *rsc = vc4_resource_setup(pscreen, tmpl);
 499         struct pipe_resource *prsc = &rsc->base.b;
 500
 501         /* We have to make shared be untiled, since we don't have any way to
 502          * communicate metadata about tiling currently.
 503          */
 504         if (tmpl->target == PIPE_BUFFER ||
 505             tmpl->nr_samples > 1 ||
 506             (tmpl->bind & (PIPE_BIND_SCANOUT |
 507                            PIPE_BIND_LINEAR |
 508                            PIPE_BIND_SHARED |
 509                            PIPE_BIND_CURSOR))) {
 510                 rsc->tiled = false;
 511         } else {
 512                 rsc->tiled = true;
 513         }
 514
 515         if (tmpl->target != PIPE_BUFFER)
 516                 rsc->vc4_format = get_resource_texture_format(prsc);
 517
 518         vc4_setup_slices(rsc);
 519         if (!vc4_resource_bo_alloc(rsc))
 520                 goto fail;
 521
 522         return prsc;
 523 fail:
 524         vc4_resource_destroy(pscreen, prsc);
 525         return NULL;
 526 }
 527
 528 static struct pipe_resource *
 529 vc4_resource_from_handle(struct pipe_screen *pscreen,
 530                          const struct pipe_resource *tmpl,
 531                          struct winsys_handle *handle,
 532                          unsigned usage)
 533 {
 534         struct vc4_resource *rsc = vc4_resource_setup(pscreen, tmpl);
 535         struct pipe_resource *prsc = &rsc->base.b;
 536         struct vc4_resource_slice *slice = &rsc->slices[0];
 537         uint32_t expected_stride =
 538             align(prsc->width0, vc4_utile_width(rsc->cpp)) * rsc->cpp;
 539
 540         if (!rsc)
 541                 return NULL;
 542
 543         if (handle->stride != expected_stride) {
 544                 static bool warned = false;
 545                 if (!warned) {
 546                         warned = true;
 547                         fprintf(stderr,
 548                                 "Attempting to import %dx%d %s with "
 549                                 "unsupported stride %d instead of %d\n",
 550                                 prsc->width0, prsc->height0,
 551                                 util_format_short_name(prsc->format),
 552                                 handle->stride,
 553                                 expected_stride);
 554                 }
 555                 return NULL;
 556         }
 557
 558         rsc->tiled = false;
 559         rsc->bo = vc4_screen_bo_from_handle(pscreen, handle);
 560         if (!rsc->bo)
 561                 goto fail;
 562
 563         slice->stride = handle->stride;
 564         slice->tiling = VC4_TILING_FORMAT_LINEAR;
 565
 566         rsc->vc4_format = get_resource_texture_format(prsc);
 567
 568         if (miptree_debug) {
 569                 fprintf(stderr,
 570                         "rsc import %p (format %d), %dx%d: "
 571                         "level 0 (R) -> stride %d@0x%08x\n",
 572                         rsc, rsc->vc4_format,
 573                         prsc->width0, prsc->height0,
 574                         slice->stride, slice->offset);
 575         }
 576
 577         return prsc;
 578
 579 fail:
 580         vc4_resource_destroy(pscreen, prsc);
 581         return NULL;
 582 }
 583
 584 static struct pipe_surface *
 585 vc4_create_surface(struct pipe_context *pctx,
 586                    struct pipe_resource *ptex,
 587                    const struct pipe_surface *surf_tmpl)
 588 {
 589         struct vc4_surface *surface = CALLOC_STRUCT(vc4_surface);
 590         struct vc4_resource *rsc = vc4_resource(ptex);
 591
 592         if (!surface)
 593                 return NULL;
 594
 595         assert(surf_tmpl->u.tex.first_layer == surf_tmpl->u.tex.last_layer);
 596
 597         struct pipe_surface *psurf = &surface->base;
 598         unsigned level = surf_tmpl->u.tex.level;
 599
 600         pipe_reference_init(&psurf->reference, 1);
 601         pipe_resource_reference(&psurf->texture, ptex);
 602
 603         psurf->context = pctx;
 604         psurf->format = surf_tmpl->format;
 605         psurf->width = u_minify(ptex->width0, level);
 606         psurf->height = u_minify(ptex->height0, level);
 607         psurf->u.tex.level = level;
 608         psurf->u.tex.first_layer = surf_tmpl->u.tex.first_layer;
 609         psurf->u.tex.last_layer = surf_tmpl->u.tex.last_layer;
 610         surface->offset = (rsc->slices[level].offset +
 611                            psurf->u.tex.first_layer * rsc->cube_map_stride);
 612         surface->tiling = rsc->slices[level].tiling;
 613
 614         return &surface->base;
 615 }
 616
 617 static void
 618 vc4_surface_destroy(struct pipe_context *pctx, struct pipe_surface *psurf)
 619 {
 620         pipe_resource_reference(&psurf->texture, NULL);
 621         FREE(psurf);
 622 }
 623
 624 static void
 625 vc4_dump_surface_non_msaa(struct pipe_surface *psurf)
 626 {
 627         struct pipe_resource *prsc = psurf->texture;
 628         struct vc4_resource *rsc = vc4_resource(prsc);
 629         uint32_t *map = vc4_bo_map(rsc->bo);
 630         uint32_t stride = rsc->slices[0].stride / 4;
 631         uint32_t width = psurf->width;
 632         uint32_t height = psurf->height;
 633         uint32_t chunk_w = width / 79;
 634         uint32_t chunk_h = height / 40;
 635         uint32_t found_colors[10];
 636         uint32_t num_found_colors = 0;
 637
 638         if (rsc->vc4_format != VC4_TEXTURE_TYPE_RGBA32R) {
 639                 fprintf(stderr, "%s: Unsupported format %s\n",
 640                         __func__, util_format_short_name(psurf->format));
 641                 return;
 642         }
 643
 644         for (int by = 0; by < height; by += chunk_h) {
 645                 for (int bx = 0; bx < width; bx += chunk_w) {
 646                         int all_found_color = -1; /* nothing found */
 647
 648                         for (int y = by; y < MIN2(height, by + chunk_h); y++) {
 649                                 for (int x = bx; x < MIN2(width, bx + chunk_w); x++) {
 650                                         uint32_t pix = map[y * stride + x];
 651
 652                                         int i;
 653                                         for (i = 0; i < num_found_colors; i++) {
 654                                                 if (pix == found_colors[i])
 655                                                         break;
 656                                         }
 657                                         if (i == num_found_colors &&
 658                                             num_found_colors <
 659                                             ARRAY_SIZE(found_colors)) {
 660                                                 found_colors[num_found_colors++] = pix;
 661                                         }
 662
 663                                         if (i < num_found_colors) {
 664                                                 if (all_found_color == -1)
 665                                                         all_found_color = i;
 666                                                 else if (i != all_found_color)
 667                                                         all_found_color = ARRAY_SIZE(found_colors);
 668                                         }
 669                                 }
 670                         }
 671                         /* If all pixels for this chunk have a consistent
 672                          * value, then print a character for it.  Either a
 673                          * fixed name (particularly common for piglit tests),
 674                          * or a runtime-generated number.
 675                          */
 676                         if (all_found_color >= 0 &&
 677                             all_found_color < ARRAY_SIZE(found_colors)) {
 678                                 static const struct {
 679                                         uint32_t val;
 680                                         const char *c;
 681                                 } named_colors[] = {
 682                                         { 0xff000000, "█" },
 683                                         { 0x00000000, "█" },
 684                                         { 0xffff0000, "r" },
 685                                         { 0xff00ff00, "g" },
 686                                         { 0xff0000ff, "b" },
 687                                         { 0xffffffff, "w" },
 688                                 };
 689                                 int i;
 690                                 for (i = 0; i < ARRAY_SIZE(named_colors); i++) {
 691                                         if (named_colors[i].val ==
 692                                             found_colors[all_found_color]) {
 693                                                 fprintf(stderr, "%s",
 694                                                         named_colors[i].c);
 695                                                 break;
 696                                         }
 697                                 }
 698                                 /* For unnamed colors, print a number and the
 699                                  * numbers will have values printed at the
 700                                  * end.
 701                                  */
 702                                 if (i == ARRAY_SIZE(named_colors)) {
 703                                         fprintf(stderr, "%c",
 704                                                 '0' + all_found_color);
 705                                 }
 706                         } else {
 707                                 /* If there's no consistent color, print this.
 708                                  */
 709                                 fprintf(stderr, ".");
 710                         }
 711                 }
 712                 fprintf(stderr, "\n");
 713         }
 714
 715         for (int i = 0; i < num_found_colors; i++) {
 716                 fprintf(stderr, "color %d: 0x%08x\n", i, found_colors[i]);
 717         }
 718 }
 719
 720 static uint32_t
 721 vc4_surface_msaa_get_sample(struct pipe_surface *psurf,
 722                             uint32_t x, uint32_t y, uint32_t sample)
 723 {
 724         struct pipe_resource *prsc = psurf->texture;
 725         struct vc4_resource *rsc = vc4_resource(prsc);
 726         uint32_t tile_w = 32, tile_h = 32;
 727         uint32_t tiles_w = DIV_ROUND_UP(psurf->width, 32);
 728
 729         uint32_t tile_x = x / tile_w;
 730         uint32_t tile_y = y / tile_h;
 731         uint32_t *tile = (vc4_bo_map(rsc->bo) +
 732                           VC4_TILE_BUFFER_SIZE * (tile_y * tiles_w + tile_x));
 733         uint32_t subtile_x = x % tile_w;
 734         uint32_t subtile_y = y % tile_h;
 735
 736         uint32_t quad_samples = VC4_MAX_SAMPLES * 4;
 737         uint32_t tile_stride = quad_samples * tile_w / 2;
 738
 739         return *((uint32_t *)tile +
 740                  (subtile_y >> 1) * tile_stride +
 741                  (subtile_x >> 1) * quad_samples +
 742                  ((subtile_y & 1) << 1) +
 743                  (subtile_x & 1) +
 744                  sample);
 745 }
 746
 747 static void
 748 vc4_dump_surface_msaa_char(struct pipe_surface *psurf,
 749                            uint32_t start_x, uint32_t start_y,
 750                            uint32_t w, uint32_t h)
 751 {
 752         bool all_same_color = true;
 753         uint32_t all_pix = 0;
 754
 755         for (int y = start_y; y < start_y + h; y++) {
 756                 for (int x = start_x; x < start_x + w; x++) {
 757                         for (int s = 0; s < VC4_MAX_SAMPLES; s++) {
 758                                 uint32_t pix = vc4_surface_msaa_get_sample(psurf,
 759                                                                            x, y,
 760                                                                            s);
 761                                 if (x == start_x && y == start_y)
 762                                         all_pix = pix;
 763                                 else if (all_pix != pix)
 764                                         all_same_color = false;
 765                         }
 766                 }
 767         }
 768         if (all_same_color) {
 769                 static const struct {
 770                         uint32_t val;
 771                         const char *c;
 772                 } named_colors[] = {
 773                         { 0xff000000, "█" },
 774                         { 0x00000000, "█" },
 775                         { 0xffff0000, "r" },
 776                         { 0xff00ff00, "g" },
 777                         { 0xff0000ff, "b" },
 778                         { 0xffffffff, "w" },
 779                 };
 780                 int i;
 781                 for (i = 0; i < ARRAY_SIZE(named_colors); i++) {
 782                         if (named_colors[i].val == all_pix) {
 783                                 fprintf(stderr, "%s",
 784                                         named_colors[i].c);
 785                                 return;
 786                         }
 787                 }
 788                 fprintf(stderr, "x");
 789         } else {
 790                 fprintf(stderr, ".");
 791         }
 792 }
 793
 794 static void
 795 vc4_dump_surface_msaa(struct pipe_surface *psurf)
 796 {
 797         uint32_t tile_w = 32, tile_h = 32;
 798         uint32_t tiles_w = DIV_ROUND_UP(psurf->width, tile_w);
 799         uint32_t tiles_h = DIV_ROUND_UP(psurf->height, tile_h);
 800         uint32_t char_w = 140, char_h = 60;
 801         uint32_t char_w_per_tile = char_w / tiles_w - 1;
 802         uint32_t char_h_per_tile = char_h / tiles_h - 1;
 803         uint32_t found_colors[10];
 804         uint32_t num_found_colors = 0;
 805
 806         fprintf(stderr, "Surface: %dx%d (%dx MSAA)\n",
 807                 psurf->width, psurf->height, psurf->texture->nr_samples);
 808
 809         for (int x = 0; x < (char_w_per_tile + 1) * tiles_w; x++)
 810                 fprintf(stderr, "-");
 811         fprintf(stderr, "\n");
 812
 813         for (int ty = 0; ty < psurf->height; ty += tile_h) {
 814                 for (int y = 0; y < char_h_per_tile; y++) {
 815
 816                         for (int tx = 0; tx < psurf->width; tx += tile_w) {
 817                                 for (int x = 0; x < char_w_per_tile; x++) {
 818                                         uint32_t bx1 = (x * tile_w /
 819                                                         char_w_per_tile);
 820                                         uint32_t bx2 = ((x + 1) * tile_w /
 821                                                         char_w_per_tile);
 822                                         uint32_t by1 = (y * tile_h /
 823                                                         char_h_per_tile);
 824                                         uint32_t by2 = ((y + 1) * tile_h /
 825                                                         char_h_per_tile);
 826
 827                                         vc4_dump_surface_msaa_char(psurf,
 828                                                                    tx + bx1,
 829                                                                    ty + by1,
 830                                                                    bx2 - bx1,
 831                                                                    by2 - by1);
 832                                 }
 833                                 fprintf(stderr, "|");
 834                         }
 835                         fprintf(stderr, "\n");
 836                 }
 837
 838                 for (int x = 0; x < (char_w_per_tile + 1) * tiles_w; x++)
 839                         fprintf(stderr, "-");
 840                 fprintf(stderr, "\n");
 841         }
 842
 843         for (int i = 0; i < num_found_colors; i++) {
 844                 fprintf(stderr, "color %d: 0x%08x\n", i, found_colors[i]);
 845         }
 846 }
 847
 848 /** Debug routine to dump the contents of an 8888 surface to the console */
 849 void
 850 vc4_dump_surface(struct pipe_surface *psurf)
 851 {
 852         if (!psurf)
 853                 return;
 854
 855         if (psurf->texture->nr_samples > 1)
 856                 vc4_dump_surface_msaa(psurf);
 857         else
 858                 vc4_dump_surface_non_msaa(psurf);
 859 }
 860
 861 static void
 862 vc4_flush_resource(struct pipe_context *pctx, struct pipe_resource *resource)
 863 {
 864         /* All calls to flush_resource are followed by a flush of the context,
 865          * so there's nothing to do.
 866          */
 867 }
 868
 869 void
 870 vc4_update_shadow_baselevel_texture(struct pipe_context *pctx,
 871                                     struct pipe_sampler_view *view)
 872 {
 873         struct vc4_resource *shadow = vc4_resource(view->texture);
 874         struct vc4_resource *orig = vc4_resource(shadow->shadow_parent);
 875         assert(orig);
 876
 877         if (shadow->writes == orig->writes && orig->bo->private)
 878                 return;
 879
 880         perf_debug("Updating shadow texture due to %s\n",
 881                    view->u.tex.first_level ? "base level" : "raster layout");
 882
 883         for (int i = 0; i <= shadow->base.b.last_level; i++) {
 884                 unsigned width = u_minify(shadow->base.b.width0, i);
 885                 unsigned height = u_minify(shadow->base.b.height0, i);
 886                 struct pipe_blit_info info = {
 887                         .dst = {
 888                                 .resource = &shadow->base.b,
 889                                 .level = i,
 890                                 .box = {
 891                                         .x = 0,
 892                                         .y = 0,
 893                                         .z = 0,
 894                                         .width = width,
 895                                         .height = height,
 896                                         .depth = 1,
 897                                 },
 898                                 .format = shadow->base.b.format,
 899                         },
 900                         .src = {
 901                                 .resource = &orig->base.b,
 902                                 .level = view->u.tex.first_level + i,
 903                                 .box = {
 904                                         .x = 0,
 905                                         .y = 0,
 906                                         .z = 0,
 907                                         .width = width,
 908                                         .height = height,
 909                                         .depth = 1,
 910                                 },
 911                                 .format = orig->base.b.format,
 912                         },
 913                         .mask = ~0,
 914                 };
 915                 pctx->blit(pctx, &info);
 916         }
 917
 918         shadow->writes = orig->writes;
 919 }
 920
 921 /**
 922  * Converts a 4-byte index buffer to 2 bytes.
 923  *
 924  * Since GLES2 only has support for 1 and 2-byte indices, the hardware doesn't
 925  * include 4-byte index support, and we have to shrink it down.
 926  *
 927  * There's no fallback support for when indices end up being larger than 2^16,
 928  * though it will at least assertion fail.  Also, if the original index data
 929  * was in user memory, it would be nice to not have uploaded it to a VBO
 930  * before translating.
 931  */
 932 struct pipe_resource *
 933 vc4_get_shadow_index_buffer(struct pipe_context *pctx,
 934                             const struct pipe_index_buffer *ib,
 935                             uint32_t count,
 936                             uint32_t *shadow_offset)
 937 {
 938         struct vc4_context *vc4 = vc4_context(pctx);
 939         struct vc4_resource *orig = vc4_resource(ib->buffer);
 940         perf_debug("Fallback conversion for %d uint indices\n", count);
 941
 942         void *data;
 943         struct pipe_resource *shadow_rsc = NULL;
 944         u_upload_alloc(vc4->uploader, 0, count * 2, 4,
 945                        shadow_offset, &shadow_rsc, &data);
 946         uint16_t *dst = data;
 947
 948         struct pipe_transfer *src_transfer = NULL;
 949         const uint32_t *src;
 950         if (ib->user_buffer) {
 951                 src = ib->user_buffer;
 952         } else {
 953                 src = pipe_buffer_map_range(pctx, &orig->base.b,
 954                                             ib->offset,
 955                                             count * 4,
 956                                             PIPE_TRANSFER_READ, &src_transfer);
 957         }
 958
 959         for (int i = 0; i < count; i++) {
 960                 uint32_t src_index = src[i];
 961                 assert(src_index <= 0xffff);
 962                 dst[i] = src_index;
 963         }
 964
 965         if (src_transfer)
 966                 pctx->transfer_unmap(pctx, src_transfer);
 967
 968         return shadow_rsc;
 969 }
 970
 971 void
 972 vc4_resource_screen_init(struct pipe_screen *pscreen)
 973 {
 974         pscreen->resource_create = vc4_resource_create;
 975         pscreen->resource_from_handle = vc4_resource_from_handle;
 976         pscreen->resource_get_handle = u_resource_get_handle_vtbl;
 977         pscreen->resource_destroy = u_resource_destroy_vtbl;
 978 }
 979
 980 void
 981 vc4_resource_context_init(struct pipe_context *pctx)
 982 {
 983         pctx->transfer_map = u_transfer_map_vtbl;
 984         pctx->transfer_flush_region = u_transfer_flush_region_vtbl;
 985         pctx->transfer_unmap = u_transfer_unmap_vtbl;
 986         pctx->transfer_inline_write = u_transfer_inline_write_vtbl;
 987         pctx->create_surface = vc4_create_surface;
 988         pctx->surface_destroy = vc4_surface_destroy;
 989         pctx->resource_copy_region = util_resource_copy_region;
 990         pctx->blit = vc4_blit;
 991         pctx->flush_resource = vc4_flush_resource;
 992 }