src/gallium/drivers/svga/svga_surface.c

   1 /**********************************************************
   2  * Copyright 2008-2009 VMware, Inc.  All rights reserved.
   3  *
   4  * Permission is hereby granted, free of charge, to any person
   5  * obtaining a copy of this software and associated documentation
   6  * files (the "Software"), to deal in the Software without
   7  * restriction, including without limitation the rights to use, copy,
   8  * modify, merge, publish, distribute, sublicense, and/or sell copies
   9  * of the Software, and to permit persons to whom the Software is
  10  * furnished to do so, subject to the following conditions:
  11  *
  12  * The above copyright notice and this permission notice shall be
  13  * included in all copies or substantial portions of the Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  16  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  17  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  18  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  19  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  20  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  21  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  22  * SOFTWARE.
  23  *
  24  **********************************************************/
  25
  26 #include "svga_cmd.h"
  27
  28 #include "pipe/p_state.h"
  29 #include "pipe/p_defines.h"
  30 #include "util/u_inlines.h"
  31 #include "os/os_thread.h"
  32 #include "util/u_bitmask.h"
  33 #include "util/u_format.h"
  34 #include "util/u_math.h"
  35 #include "util/u_memory.h"
  36
  37 #include "svga_format.h"
  38 #include "svga_screen.h"
  39 #include "svga_context.h"
  40 #include "svga_sampler_view.h"
  41 #include "svga_resource_texture.h"
  42 #include "svga_surface.h"
  43 #include "svga_debug.h"
  44
  45 static void svga_mark_surface_dirty(struct pipe_surface *surf);
  46
  47 void
  48 svga_texture_copy_handle(struct svga_context *svga,
  49                          struct svga_winsys_surface *src_handle,
  50                          unsigned src_x, unsigned src_y, unsigned src_z,
  51                          unsigned src_level, unsigned src_layer,
  52                          struct svga_winsys_surface *dst_handle,
  53                          unsigned dst_x, unsigned dst_y, unsigned dst_z,
  54                          unsigned dst_level, unsigned dst_layer,
  55                          unsigned width, unsigned height, unsigned depth)
  56 {
  57    struct svga_surface dst, src;
  58    enum pipe_error ret;
  59    SVGA3dCopyBox box, *boxes;
  60
  61    assert(svga);
  62
  63    src.handle = src_handle;
  64    src.real_level = src_level;
  65    src.real_layer = src_layer;
  66    src.real_zslice = 0;
  67
  68    dst.handle = dst_handle;
  69    dst.real_level = dst_level;
  70    dst.real_layer = dst_layer;
  71    dst.real_zslice = 0;
  72
  73    box.x = dst_x;
  74    box.y = dst_y;
  75    box.z = dst_z;
  76    box.w = width;
  77    box.h = height;
  78    box.d = depth;
  79    box.srcx = src_x;
  80    box.srcy = src_y;
  81    box.srcz = src_z;
  82
  83 /*
  84    SVGA_DBG(DEBUG_VIEWS, "mipcopy src: %p %u (%ux%ux%u), dst: %p %u (%ux%ux%u)\n",
  85             src_handle, src_level, src_x, src_y, src_z,
  86             dst_handle, dst_level, dst_x, dst_y, dst_z);
  87 */
  88
  89    ret = SVGA3D_BeginSurfaceCopy(svga->swc,
  90                                  &src.base,
  91                                  &dst.base,
  92                                  &boxes, 1);
  93    if (ret != PIPE_OK) {
  94       svga_context_flush(svga, NULL);
  95       ret = SVGA3D_BeginSurfaceCopy(svga->swc,
  96                                     &src.base,
  97                                     &dst.base,
  98                                     &boxes, 1);
  99       assert(ret == PIPE_OK);
 100    }
 101    *boxes = box;
 102    SVGA_FIFOCommitAll(svga->swc);
 103 }
 104
 105
 106 /* A helper function to sync up the two surface handles.
 107  */
 108 static void
 109 svga_texture_copy_handle_resource(struct svga_context *svga,
 110                                   struct svga_texture *src_tex,
 111                                   struct svga_winsys_surface *dst,
 112                                   unsigned int numMipLevels,
 113                                   unsigned int numLayers,
 114                                   int zslice_pick,
 115                                   unsigned int mipoffset,
 116                                   unsigned int layeroffset)
 117 {
 118    unsigned int i, j;
 119    unsigned int zoffset = 0;
 120
 121    /* A negative zslice_pick implies zoffset at 0, and depth to copy is
 122     * from the depth of the texture at the particular mipmap level.
 123     */
 124    if (zslice_pick >= 0)
 125       zoffset = zslice_pick;
 126
 127    for (i = 0; i < numMipLevels; i++) {
 128       unsigned int miplevel = i + mipoffset;
 129
 130       for (j = 0; j < numLayers; j++) {
 131          if (svga_is_texture_level_defined(src_tex, j+layeroffset, miplevel)) {
 132             unsigned depth = (zslice_pick < 0 ?
 133                               u_minify(src_tex->b.b.depth0, miplevel) : 1);
 134
 135             svga_texture_copy_handle(svga,
 136                                      src_tex->handle,
 137                                      0, 0, zoffset,
 138                                      miplevel,
 139                                      j + layeroffset,
 140                                      dst, 0, 0, 0, i, j,
 141                                      u_minify(src_tex->b.b.width0, miplevel),
 142                                      u_minify(src_tex->b.b.height0, miplevel),
 143                                      depth);
 144          }
 145       }
 146    }
 147 }
 148
 149
 150 struct svga_winsys_surface *
 151 svga_texture_view_surface(struct svga_context *svga,
 152                           struct svga_texture *tex,
 153                           unsigned bind_flags,
 154                           SVGA3dSurfaceAllFlags flags,
 155                           SVGA3dSurfaceFormat format,
 156                           unsigned start_mip,
 157                           unsigned num_mip,
 158                           int layer_pick,
 159                           unsigned num_layers,
 160                           int zslice_pick,
 161                           boolean cacheable,
 162                           struct svga_host_surface_cache_key *key) /* OUT */
 163 {
 164    struct svga_screen *ss = svga_screen(svga->pipe.screen);
 165    struct svga_winsys_surface *handle = NULL;
 166    boolean validated;
 167    boolean needCopyResource;
 168
 169    SVGA_DBG(DEBUG_PERF,
 170             "svga: Create surface view: layer %d zslice %d mips %d..%d\n",
 171             layer_pick, zslice_pick, start_mip, start_mip+num_mip-1);
 172
 173    SVGA_STATS_TIME_PUSH(ss->sws, SVGA_STATS_TIME_EMULATESURFACEVIEW);
 174
 175    key->flags = flags;
 176    key->format = format;
 177    key->numMipLevels = num_mip;
 178    key->size.width = u_minify(tex->b.b.width0, start_mip);
 179    key->size.height = u_minify(tex->b.b.height0, start_mip);
 180    key->size.depth = zslice_pick < 0 ? u_minify(tex->b.b.depth0, start_mip) : 1;
 181    key->cachable = 1;
 182    key->arraySize = 1;
 183    key->numFaces = 1;
 184
 185    /* single sample surface can be treated as non-multisamples surface */
 186    key->sampleCount = tex->b.b.nr_samples > 1 ? tex->b.b.nr_samples : 0;
 187
 188    if (key->sampleCount > 1) {
 189       key->flags |= SVGA3D_SURFACE_MASKABLE_ANTIALIAS;
 190    }
 191
 192    if (tex->b.b.target == PIPE_TEXTURE_CUBE && layer_pick < 0) {
 193       key->flags |= SVGA3D_SURFACE_CUBEMAP;
 194       key->numFaces = 6;
 195    } else if (tex->b.b.target == PIPE_TEXTURE_1D_ARRAY ||
 196               tex->b.b.target == PIPE_TEXTURE_2D_ARRAY) {
 197       key->arraySize = num_layers;
 198    }
 199
 200    if (key->format == SVGA3D_FORMAT_INVALID) {
 201       key->cachable = 0;
 202       goto done;
 203    }
 204
 205    if (cacheable && tex->backed_handle &&
 206        memcmp(key, &tex->backed_key, sizeof *key) == 0) {
 207       handle = tex->backed_handle;
 208       needCopyResource = tex->backed_age < tex->age;
 209    } else {
 210       SVGA_DBG(DEBUG_DMA, "surface_create for texture view\n");
 211       handle = svga_screen_surface_create(ss, bind_flags, PIPE_USAGE_DEFAULT,
 212                                           &validated, key);
 213       needCopyResource = TRUE;
 214
 215       if (cacheable && !tex->backed_handle) {
 216          tex->backed_handle = handle;
 217          memcpy(&tex->backed_key, key, sizeof *key);
 218       }
 219    }
 220
 221    if (!handle) {
 222       key->cachable = 0;
 223       goto done;
 224    }
 225
 226    SVGA_DBG(DEBUG_DMA, " --> got sid %p (texture view)\n", handle);
 227
 228    if (layer_pick < 0)
 229       layer_pick = 0;
 230
 231    if (needCopyResource) {
 232       svga_texture_copy_handle_resource(svga, tex, handle,
 233                                         key->numMipLevels,
 234                                         key->numFaces * key->arraySize,
 235                                         zslice_pick, start_mip, layer_pick);
 236       tex->backed_age = tex->age;
 237    }
 238
 239 done:
 240    SVGA_STATS_TIME_POP(ss->sws);
 241
 242    return handle;
 243 }
 244
 245
 246 /**
 247  * A helper function to create a surface view.
 248  * The view boolean flag specifies whether svga_texture_view_surface()
 249  * will be called to create a cloned surface and resource for the view.
 250  */
 251 static struct pipe_surface *
 252 svga_create_surface_view(struct pipe_context *pipe,
 253                          struct pipe_resource *pt,
 254                          const struct pipe_surface *surf_tmpl,
 255                          boolean view)
 256 {
 257    struct svga_context *svga = svga_context(pipe);
 258    struct svga_texture *tex = svga_texture(pt);
 259    struct pipe_screen *screen = pipe->screen;
 260    struct svga_screen *ss = svga_screen(screen);
 261    struct svga_surface *s;
 262    unsigned layer, zslice, bind;
 263    unsigned nlayers = 1;
 264    SVGA3dSurfaceAllFlags flags = 0;
 265    SVGA3dSurfaceFormat format;
 266    struct pipe_surface *retVal = NULL;
 267
 268    s = CALLOC_STRUCT(svga_surface);
 269    if (!s)
 270       return NULL;
 271
 272    SVGA_STATS_TIME_PUSH(ss->sws, SVGA_STATS_TIME_CREATESURFACEVIEW);
 273
 274    if (pt->target == PIPE_TEXTURE_CUBE) {
 275       layer = surf_tmpl->u.tex.first_layer;
 276       zslice = 0;
 277    }
 278    else if (pt->target == PIPE_TEXTURE_1D_ARRAY ||
 279             pt->target == PIPE_TEXTURE_2D_ARRAY) {
 280       layer = surf_tmpl->u.tex.first_layer;
 281       zslice = 0;
 282       nlayers = surf_tmpl->u.tex.last_layer - surf_tmpl->u.tex.first_layer + 1;
 283    }
 284    else {
 285       layer = 0;
 286       zslice = surf_tmpl->u.tex.first_layer;
 287    }
 288
 289    pipe_reference_init(&s->base.reference, 1);
 290    pipe_resource_reference(&s->base.texture, pt);
 291    s->base.context = pipe;
 292    s->base.format = surf_tmpl->format;
 293    s->base.width = u_minify(pt->width0, surf_tmpl->u.tex.level);
 294    s->base.height = u_minify(pt->height0, surf_tmpl->u.tex.level);
 295    s->base.u.tex.level = surf_tmpl->u.tex.level;
 296    s->base.u.tex.first_layer = surf_tmpl->u.tex.first_layer;
 297    s->base.u.tex.last_layer = surf_tmpl->u.tex.last_layer;
 298    s->view_id = SVGA3D_INVALID_ID;
 299
 300    s->backed = NULL;
 301
 302    if (util_format_is_depth_or_stencil(surf_tmpl->format)) {
 303       flags = SVGA3D_SURFACE_HINT_DEPTHSTENCIL |
 304               SVGA3D_SURFACE_BIND_DEPTH_STENCIL;
 305       bind = PIPE_BIND_DEPTH_STENCIL;
 306    }
 307    else {
 308       flags = SVGA3D_SURFACE_HINT_RENDERTARGET |
 309               SVGA3D_SURFACE_BIND_RENDER_TARGET;
 310       bind = PIPE_BIND_RENDER_TARGET;
 311    }
 312
 313    if (tex->imported) {
 314       /* imported resource (a window) */
 315       format = tex->key.format;
 316       if (util_format_is_srgb(surf_tmpl->format)) {
 317          /* sRGB rendering to window */
 318          format = svga_linear_to_srgb(format);
 319       }
 320    }
 321    else {
 322       format = svga_translate_format(ss, surf_tmpl->format, bind);
 323    }
 324
 325    assert(format != SVGA3D_FORMAT_INVALID);
 326
 327    if (view) {
 328       SVGA_DBG(DEBUG_VIEWS,
 329                "New backed surface view: resource %p, level %u layer %u z %u, %p\n",
 330                pt, surf_tmpl->u.tex.level, layer, zslice, s);
 331
 332       if (svga_have_vgpu10(svga)) {
 333          switch (pt->target) {
 334          case PIPE_TEXTURE_1D:
 335             flags |= SVGA3D_SURFACE_1D;
 336             break;
 337          case PIPE_TEXTURE_1D_ARRAY:
 338             flags |= SVGA3D_SURFACE_1D | SVGA3D_SURFACE_ARRAY;
 339             break;
 340          case PIPE_TEXTURE_2D_ARRAY:
 341             flags |= SVGA3D_SURFACE_ARRAY;
 342             break;
 343          case PIPE_TEXTURE_3D:
 344             flags |= SVGA3D_SURFACE_VOLUME;
 345             break;
 346          case PIPE_TEXTURE_CUBE:
 347             if (nlayers == 6)
 348                flags |= SVGA3D_SURFACE_CUBEMAP;
 349             break;
 350          default:
 351             break;
 352          }
 353       }
 354
 355       /* When we clone the surface view resource, use the format used in
 356        * the creation of the original resource.
 357        */
 358       s->handle = svga_texture_view_surface(svga, tex, bind, flags,
 359                                             tex->key.format,
 360                                             surf_tmpl->u.tex.level, 1,
 361                                             layer, nlayers, zslice,
 362                                             TRUE, &s->key);
 363       if (!s->handle) {
 364          FREE(s);
 365          goto done;
 366       }
 367
 368       s->key.format = format;
 369       s->real_layer = 0;
 370       s->real_level = 0;
 371       s->real_zslice = 0;
 372    } else {
 373       SVGA_DBG(DEBUG_VIEWS,
 374                "New surface view: resource %p, level %u, layer %u, z %u, %p\n",
 375                pt, surf_tmpl->u.tex.level, layer, zslice, s);
 376
 377       memset(&s->key, 0, sizeof s->key);
 378       s->key.format = format;
 379       s->handle = tex->handle;
 380       s->real_layer = layer;
 381       s->real_zslice = zslice;
 382       s->real_level = surf_tmpl->u.tex.level;
 383    }
 384
 385    svga->hud.num_surface_views++;
 386    retVal = &s->base;
 387
 388 done:
 389    SVGA_STATS_TIME_POP(ss->sws);
 390    return retVal;
 391 }
 392
 393
 394 static struct pipe_surface *
 395 svga_create_surface(struct pipe_context *pipe,
 396                     struct pipe_resource *pt,
 397                     const struct pipe_surface *surf_tmpl)
 398 {
 399    struct svga_context *svga = svga_context(pipe);
 400    struct pipe_screen *screen = pipe->screen;
 401    struct pipe_surface *surf = NULL;
 402    boolean view = FALSE;
 403
 404    SVGA_STATS_TIME_PUSH(svga_sws(svga), SVGA_STATS_TIME_CREATESURFACE);
 405
 406    if (svga_screen(screen)->debug.force_surface_view)
 407       view = TRUE;
 408
 409    if (surf_tmpl->u.tex.level != 0 &&
 410        svga_screen(screen)->debug.force_level_surface_view)
 411       view = TRUE;
 412
 413    if (pt->target == PIPE_TEXTURE_3D)
 414       view = TRUE;
 415
 416    if (svga_have_vgpu10(svga) || svga_screen(screen)->debug.no_surface_view)
 417       view = FALSE;
 418
 419    surf = svga_create_surface_view(pipe, pt, surf_tmpl, view);
 420
 421    SVGA_STATS_TIME_POP(svga_sws(svga));
 422
 423    return surf;
 424 }
 425
 426
 427 /**
 428  * Clone the surface view and its associated resource.
 429  */
 430 static struct svga_surface *
 431 create_backed_surface_view(struct svga_context *svga, struct svga_surface *s)
 432 {
 433    struct svga_texture *tex = svga_texture(s->base.texture);
 434
 435    if (!s->backed) {
 436       struct pipe_surface *backed_view;
 437
 438       SVGA_STATS_TIME_PUSH(svga_sws(svga),
 439                            SVGA_STATS_TIME_CREATEBACKEDSURFACEVIEW);
 440
 441       backed_view = svga_create_surface_view(&svga->pipe,
 442                                              &tex->b.b,
 443                                              &s->base,
 444                                              TRUE);
 445       if (!backed_view)
 446          goto done;
 447
 448       s->backed = svga_surface(backed_view);
 449
 450       SVGA_STATS_TIME_POP(svga_sws(svga));
 451    }
 452    else if (s->backed->age < tex->age) {
 453       /*
 454        * There is already an existing backing surface, but we still need to
 455        * sync the backing resource if the original resource has been modified
 456        * since the last copy.
 457        */
 458       struct svga_surface *bs = s->backed;
 459       unsigned int layer, zslice;
 460
 461       assert(bs->handle);
 462
 463       switch (tex->b.b.target) {
 464       case PIPE_TEXTURE_CUBE:
 465       case PIPE_TEXTURE_1D_ARRAY:
 466       case PIPE_TEXTURE_2D_ARRAY:
 467          layer = s->base.u.tex.first_layer;
 468          zslice = 0;
 469          break;
 470       default:
 471          layer = 0;
 472          zslice = s->base.u.tex.first_layer;
 473       }
 474
 475       svga_texture_copy_handle_resource(svga, tex, bs->handle,
 476                                         bs->key.numMipLevels,
 477                                         bs->key.numFaces * bs->key.arraySize,
 478                                         zslice, s->base.u.tex.level, layer);
 479    }
 480
 481    svga_mark_surface_dirty(&s->backed->base);
 482    s->backed->age = tex->age;
 483
 484 done:
 485    return s->backed;
 486 }
 487
 488 /**
 489  * Create a DX RenderTarget/DepthStencil View for the given surface,
 490  * if needed.
 491  */
 492 struct pipe_surface *
 493 svga_validate_surface_view(struct svga_context *svga, struct svga_surface *s)
 494 {
 495    enum pipe_error ret = PIPE_OK;
 496    enum pipe_shader_type shader;
 497
 498    assert(svga_have_vgpu10(svga));
 499    assert(s);
 500
 501    SVGA_STATS_TIME_PUSH(svga_sws(svga),
 502                         SVGA_STATS_TIME_VALIDATESURFACEVIEW);
 503
 504    /**
 505     * DX spec explicitly specifies that no resource can be bound to a render
 506     * target view and a shader resource view simultanously.
 507     * So first check if the resource bound to this surface view collides with
 508     * a sampler view. If so, then we will clone this surface view and its
 509     * associated resource. We will then use the cloned surface view for
 510     * render target.
 511     */
 512    for (shader = PIPE_SHADER_VERTEX; shader <= PIPE_SHADER_GEOMETRY; shader++) {
 513       if (svga_check_sampler_view_resource_collision(svga, s->handle, shader)) {
 514          SVGA_DBG(DEBUG_VIEWS,
 515                   "same resource used in shaderResource and renderTarget 0x%x\n",
 516                   s->handle);
 517          s = create_backed_surface_view(svga, s);
 518
 519          if (s)
 520             svga->state.hw_draw.has_backed_views = TRUE;
 521
 522          /* s may be null here if the function failed */
 523          break;
 524       }
 525    }
 526
 527    if (s && s->view_id == SVGA3D_INVALID_ID) {
 528       SVGA3dResourceType resType;
 529       SVGA3dRenderTargetViewDesc desc;
 530       struct svga_texture *stex = svga_texture(s->base.texture);
 531
 532       if (stex->validated == FALSE) {
 533          assert(stex->handle);
 534
 535          /* We are about to render into a surface that has not been validated.
 536           * First invalidate the surface so that the device does not
 537           * need to update the host-side copy with the invalid
 538           * content when the associated mob is first bound to the surface.
 539           */
 540          if (svga->swc->surface_invalidate(svga->swc, stex->handle) != PIPE_OK) {
 541             svga_context_flush(svga, NULL);
 542             ret = svga->swc->surface_invalidate(svga->swc, stex->handle);
 543             assert(ret == PIPE_OK);
 544          }
 545          stex->validated = TRUE;
 546       }
 547
 548       desc.tex.mipSlice = s->real_level;
 549       desc.tex.firstArraySlice = s->real_layer + s->real_zslice;
 550       desc.tex.arraySize =
 551          s->base.u.tex.last_layer - s->base.u.tex.first_layer + 1;
 552
 553       s->view_id = util_bitmask_add(svga->surface_view_id_bm);
 554
 555       resType = svga_resource_type(s->base.texture->target);
 556
 557       if (util_format_is_depth_or_stencil(s->base.format)) {
 558          ret = SVGA3D_vgpu10_DefineDepthStencilView(svga->swc,
 559                                                     s->view_id,
 560                                                     s->handle,
 561                                                     s->key.format,
 562                                                     resType,
 563                                                     &desc);
 564       }
 565       else {
 566          SVGA3dSurfaceFormat view_format = s->key.format;
 567          const struct svga_texture *stex = svga_texture(s->base.texture);
 568
 569          /* Can't create RGBA render target view of a RGBX surface so adjust
 570           * the view format.  We do something similar for texture samplers in
 571           * svga_validate_pipe_sampler_view().
 572           */
 573          if (view_format == SVGA3D_B8G8R8A8_UNORM &&
 574              (stex->key.format == SVGA3D_B8G8R8X8_UNORM ||
 575               stex->key.format == SVGA3D_B8G8R8X8_TYPELESS)) {
 576             view_format = SVGA3D_B8G8R8X8_UNORM;
 577          }
 578
 579          ret = SVGA3D_vgpu10_DefineRenderTargetView(svga->swc,
 580                                                     s->view_id,
 581                                                     s->handle,
 582                                                     view_format,
 583                                                     resType,
 584                                                     &desc);
 585       }
 586
 587       if (ret != PIPE_OK) {
 588          util_bitmask_clear(svga->surface_view_id_bm, s->view_id);
 589          s->view_id = SVGA3D_INVALID_ID;
 590          s = NULL;
 591       }
 592    }
 593
 594    SVGA_STATS_TIME_POP(svga_sws(svga));
 595
 596    return s ? &s->base : NULL;
 597 }
 598
 599
 600
 601 static void
 602 svga_surface_destroy(struct pipe_context *pipe,
 603                      struct pipe_surface *surf)
 604 {
 605    struct svga_context *svga = svga_context(pipe);
 606    struct svga_surface *s = svga_surface(surf);
 607    struct svga_texture *t = svga_texture(surf->texture);
 608    struct svga_screen *ss = svga_screen(surf->texture->screen);
 609    enum pipe_error ret = PIPE_OK;
 610
 611    SVGA_STATS_TIME_PUSH(ss->sws, SVGA_STATS_TIME_DESTROYSURFACE);
 612
 613    /* Destroy the backed view surface if it exists */
 614    if (s->backed) {
 615       svga_surface_destroy(pipe, &s->backed->base);
 616       s->backed = NULL;
 617    }
 618
 619    /* Destroy the surface handle if this is a backed handle and
 620     * it is not being cached in the texture.
 621     */
 622    if (s->handle != t->handle && s->handle != t->backed_handle) {
 623       SVGA_DBG(DEBUG_DMA, "unref sid %p (tex surface)\n", s->handle);
 624       svga_screen_surface_destroy(ss, &s->key, &s->handle);
 625    }
 626
 627    if (s->view_id != SVGA3D_INVALID_ID) {
 628       unsigned try;
 629
 630       /* The SVGA3D device will generate a device error if the
 631        * render target view or depth stencil view is destroyed from
 632        * a context other than the one it was created with.
 633        * Similar to shader resource view, in this case, we will skip
 634        * the destroy for now.
 635        */
 636       if (surf->context != pipe) {
 637          _debug_printf("context mismatch in %s\n", __func__);
 638       }
 639       else {
 640          assert(svga_have_vgpu10(svga));
 641          for (try = 0; try < 2; try++) {
 642             if (util_format_is_depth_or_stencil(s->base.format)) {
 643                ret = SVGA3D_vgpu10_DestroyDepthStencilView(svga->swc, s->view_id);
 644             }
 645             else {
 646                ret = SVGA3D_vgpu10_DestroyRenderTargetView(svga->swc, s->view_id);
 647             }
 648             if (ret == PIPE_OK)
 649                break;
 650             svga_context_flush(svga, NULL);
 651          }
 652          assert(ret == PIPE_OK);
 653          util_bitmask_clear(svga->surface_view_id_bm, s->view_id);
 654       }
 655    }
 656
 657    pipe_resource_reference(&surf->texture, NULL);
 658    FREE(surf);
 659
 660    svga->hud.num_surface_views--;
 661    SVGA_STATS_TIME_POP(ss->sws);
 662 }
 663
 664
 665 static void
 666 svga_mark_surface_dirty(struct pipe_surface *surf)
 667 {
 668    struct svga_surface *s = svga_surface(surf);
 669    struct svga_texture *tex = svga_texture(surf->texture);
 670
 671    if (!s->dirty) {
 672       s->dirty = TRUE;
 673
 674       if (s->handle == tex->handle) {
 675          /* hmm so 3d textures always have all their slices marked ? */
 676          svga_define_texture_level(tex, surf->u.tex.first_layer,
 677                                    surf->u.tex.level);
 678       }
 679       else {
 680          /* this will happen later in svga_propagate_surface */
 681       }
 682    }
 683
 684    /* Increment the view_age and texture age for this surface's mipmap
 685     * level so that any sampler views into the texture are re-validated too.
 686     * Note: we age the texture for backed surface view only when the
 687     *       backed surface is propagated to the original surface.
 688     */
 689    if (s->handle == tex->handle)
 690       svga_age_texture_view(tex, surf->u.tex.level);
 691 }
 692
 693
 694 void
 695 svga_mark_surfaces_dirty(struct svga_context *svga)
 696 {
 697    unsigned i;
 698    struct svga_hw_clear_state *hw = &svga->state.hw_clear;
 699
 700    if (svga_have_vgpu10(svga)) {
 701
 702       /* For VGPU10, mark the dirty bit in the rendertarget/depth stencil view surface.
 703        * This surface can be the backed surface.
 704        */
 705       for (i = 0; i < hw->num_rendertargets; i++) {
 706          if (hw->rtv[i])
 707             svga_mark_surface_dirty(hw->rtv[i]);
 708       }
 709       if (hw->dsv)
 710          svga_mark_surface_dirty(hw->dsv);
 711    } else {
 712       for (i = 0; i < svga->curr.framebuffer.nr_cbufs; i++) {
 713          if (svga->curr.framebuffer.cbufs[i])
 714             svga_mark_surface_dirty(svga->curr.framebuffer.cbufs[i]);
 715       }
 716       if (svga->curr.framebuffer.zsbuf)
 717          svga_mark_surface_dirty(svga->curr.framebuffer.zsbuf);
 718    }
 719 }
 720
 721
 722 /**
 723  * Progagate any changes from surfaces to texture.
 724  * pipe is optional context to inline the blit command in.
 725  */
 726 void
 727 svga_propagate_surface(struct svga_context *svga, struct pipe_surface *surf,
 728                        boolean reset)
 729 {
 730    struct svga_surface *s = svga_surface(surf);
 731    struct svga_texture *tex = svga_texture(surf->texture);
 732    struct svga_screen *ss = svga_screen(surf->texture->screen);
 733
 734    if (!s->dirty)
 735       return;
 736
 737    SVGA_STATS_TIME_PUSH(ss->sws, SVGA_STATS_TIME_PROPAGATESURFACE);
 738
 739    /* Reset the dirty flag if specified. This is to ensure that
 740     * the dirty flag will not be reset and stay unset when the backing
 741     * surface is still being bound and rendered to.
 742     * The reset flag will be set to TRUE when the surface is propagated
 743     * and will be unbound.
 744     */
 745    s->dirty = !reset;
 746
 747    ss->texture_timestamp++;
 748    svga_age_texture_view(tex, surf->u.tex.level);
 749
 750    if (s->handle != tex->handle) {
 751       unsigned zslice, layer;
 752       unsigned nlayers = 1;
 753       unsigned i;
 754
 755       if (surf->texture->target == PIPE_TEXTURE_CUBE) {
 756          zslice = 0;
 757          layer = surf->u.tex.first_layer;
 758       }
 759       else if (surf->texture->target == PIPE_TEXTURE_1D_ARRAY ||
 760                surf->texture->target == PIPE_TEXTURE_2D_ARRAY) {
 761          zslice = 0;
 762          layer = surf->u.tex.first_layer;
 763          nlayers = surf->u.tex.last_layer - surf->u.tex.first_layer + 1;
 764       }
 765       else {
 766          zslice = surf->u.tex.first_layer;
 767          layer = 0;
 768       }
 769
 770       SVGA_DBG(DEBUG_VIEWS,
 771                "Propagate surface %p to resource %p, level %u\n",
 772                surf, tex, surf->u.tex.level);
 773       for (i = 0; i < nlayers; i++) {
 774          svga_texture_copy_handle(svga,
 775                                   s->handle, 0, 0, 0, s->real_level,
 776                                   s->real_layer + i,
 777                                   tex->handle, 0, 0, zslice, surf->u.tex.level,
 778                                   layer + i,
 779                                   u_minify(tex->b.b.width0, surf->u.tex.level),
 780                                   u_minify(tex->b.b.height0, surf->u.tex.level),
 781                                   1);
 782          svga_define_texture_level(tex, layer + i, surf->u.tex.level);
 783       }
 784
 785       /* Sync the surface view age with the texture age */
 786       s->age = tex->age;
 787
 788       /* If this backed surface is cached in the texture,
 789        * update the backed age as well.
 790        */
 791       if (tex->backed_handle == s->handle) {
 792          tex->backed_age = tex->age;
 793       }
 794    }
 795
 796    SVGA_STATS_TIME_POP(ss->sws);
 797 }
 798
 799
 800 /**
 801  * If any of the render targets are in backing texture views, propagate any
 802  * changes to them back to the original texture.
 803  */
 804 void
 805 svga_propagate_rendertargets(struct svga_context *svga)
 806 {
 807    unsigned i;
 808
 809    /* Early exit if there is no backing texture views in use */
 810    if (!svga->state.hw_draw.has_backed_views)
 811       return;
 812
 813    /* Note that we examine the svga->state.hw_draw.framebuffer surfaces,
 814     * not the svga->curr.framebuffer surfaces, because it's the former
 815     * surfaces which may be backing surface views (the actual render targets).
 816     */
 817    for (i = 0; i < svga->state.hw_clear.num_rendertargets; i++) {
 818       struct pipe_surface *s = svga->state.hw_clear.rtv[i];
 819       if (s) {
 820          svga_propagate_surface(svga, s, FALSE);
 821       }
 822    }
 823
 824    if (svga->state.hw_clear.dsv) {
 825       svga_propagate_surface(svga, svga->state.hw_clear.dsv, FALSE);
 826    }
 827 }
 828
 829
 830 /**
 831  * Check if we should call svga_propagate_surface on the surface.
 832  */
 833 boolean
 834 svga_surface_needs_propagation(const struct pipe_surface *surf)
 835 {
 836    const struct svga_surface *s = svga_surface_const(surf);
 837    struct svga_texture *tex = svga_texture(surf->texture);
 838
 839    return s->dirty && s->handle != tex->handle;
 840 }
 841
 842
 843 static void
 844 svga_get_sample_position(struct pipe_context *context,
 845                          unsigned sample_count, unsigned sample_index,
 846                          float *pos_out)
 847 {
 848    /* We can't actually query the device to learn the sample positions.
 849     * These were grabbed from nvidia's driver.
 850     */
 851    static const float pos1[1][2] = {
 852       { 0.5, 0.5 }
 853    };
 854    static const float pos4[4][2] = {
 855       { 0.375000, 0.125000 },
 856       { 0.875000, 0.375000 },
 857       { 0.125000, 0.625000 },
 858       { 0.625000, 0.875000 }
 859    };
 860    static const float pos8[8][2] = {
 861       { 0.562500, 0.312500 },
 862       { 0.437500, 0.687500 },
 863       { 0.812500, 0.562500 },
 864       { 0.312500, 0.187500 },
 865       { 0.187500, 0.812500 },
 866       { 0.062500, 0.437500 },
 867       { 0.687500, 0.937500 },
 868       { 0.937500, 0.062500 }
 869    };
 870    static const float pos16[16][2] = {
 871       { 0.187500, 0.062500 },
 872       { 0.437500, 0.187500 },
 873       { 0.062500, 0.312500 },
 874       { 0.312500, 0.437500 },
 875       { 0.687500, 0.062500 },
 876       { 0.937500, 0.187500 },
 877       { 0.562500, 0.312500 },
 878       { 0.812500, 0.437500 },
 879       { 0.187500, 0.562500 },
 880       { 0.437500, 0.687500 },
 881       { 0.062500, 0.812500 },
 882       { 0.312500, 0.937500 },
 883       { 0.687500, 0.562500 },
 884       { 0.937500, 0.687500 },
 885       { 0.562500, 0.812500 },
 886       { 0.812500, 0.937500 }
 887    };
 888    const float (*positions)[2];
 889
 890    switch (sample_count) {
 891    case 4:
 892       positions = pos4;
 893       break;
 894    case 8:
 895       positions = pos8;
 896       break;
 897    case 16:
 898       positions = pos16;
 899       break;
 900    default:
 901       positions = pos1;
 902    }
 903
 904    pos_out[0] = positions[sample_index][0];
 905    pos_out[1] = positions[sample_index][1];
 906 }
 907
 908
 909 void
 910 svga_init_surface_functions(struct svga_context *svga)
 911 {
 912    svga->pipe.create_surface = svga_create_surface;
 913    svga->pipe.surface_destroy = svga_surface_destroy;
 914    svga->pipe.get_sample_position = svga_get_sample_position;
 915 }