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/format/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_region(struct svga_context *svga,
  49                          struct svga_winsys_surface *src_handle,
  50                          unsigned srcSubResource,
  51                          unsigned src_x, unsigned src_y, unsigned src_z,
  52                          struct svga_winsys_surface *dst_handle,
  53                          unsigned dstSubResource,
  54                          unsigned dst_x, unsigned dst_y, unsigned dst_z,
  55                          unsigned width, unsigned height, unsigned depth)
  56 {
  57    SVGA3dCopyBox box;
  58
  59    assert(svga_have_vgpu10(svga));
  60
  61    box.x = dst_x;
  62    box.y = dst_y;
  63    box.z = dst_z;
  64    box.w = width;
  65    box.h = height;
  66    box.d = depth;
  67    box.srcx = src_x;
  68    box.srcy = src_y;
  69    box.srcz = src_z;
  70
  71    SVGA_RETRY(svga, SVGA3D_vgpu10_PredCopyRegion
  72               (svga->swc, dst_handle, dstSubResource,
  73                src_handle, srcSubResource, &box));
  74 }
  75
  76
  77 void
  78 svga_texture_copy_handle(struct svga_context *svga,
  79                          struct svga_winsys_surface *src_handle,
  80                          unsigned src_x, unsigned src_y, unsigned src_z,
  81                          unsigned src_level, unsigned src_layer,
  82                          struct svga_winsys_surface *dst_handle,
  83                          unsigned dst_x, unsigned dst_y, unsigned dst_z,
  84                          unsigned dst_level, unsigned dst_layer,
  85                          unsigned width, unsigned height, unsigned depth)
  86 {
  87    struct svga_surface dst, src;
  88    SVGA3dCopyBox box, *boxes;
  89
  90    assert(svga);
  91
  92    src.handle = src_handle;
  93    src.real_level = src_level;
  94    src.real_layer = src_layer;
  95    src.real_zslice = 0;
  96
  97    dst.handle = dst_handle;
  98    dst.real_level = dst_level;
  99    dst.real_layer = dst_layer;
 100    dst.real_zslice = 0;
 101
 102    box.x = dst_x;
 103    box.y = dst_y;
 104    box.z = dst_z;
 105    box.w = width;
 106    box.h = height;
 107    box.d = depth;
 108    box.srcx = src_x;
 109    box.srcy = src_y;
 110    box.srcz = src_z;
 111
 112 /*
 113    SVGA_DBG(DEBUG_VIEWS, "mipcopy src: %p %u (%ux%ux%u), dst: %p %u (%ux%ux%u)\n",
 114             src_handle, src_level, src_x, src_y, src_z,
 115             dst_handle, dst_level, dst_x, dst_y, dst_z);
 116 */
 117
 118    SVGA_RETRY(svga, SVGA3D_BeginSurfaceCopy(svga->swc,
 119                                             &src.base,
 120                                             &dst.base,
 121                                             &boxes, 1));
 122
 123    *boxes = box;
 124    SVGA_FIFOCommitAll(svga->swc);
 125 }
 126
 127
 128 /* A helper function to sync up the two surface handles.
 129  */
 130 static void
 131 svga_texture_copy_handle_resource(struct svga_context *svga,
 132                                   struct svga_texture *src_tex,
 133                                   struct svga_winsys_surface *dst,
 134                                   unsigned int numMipLevels,
 135                                   unsigned int numLayers,
 136                                   int zslice_pick,
 137                                   unsigned int mipoffset,
 138                                   unsigned int layeroffset)
 139 {
 140    unsigned int i, j;
 141    unsigned int zoffset = 0;
 142
 143    /* A negative zslice_pick implies zoffset at 0, and depth to copy is
 144     * from the depth of the texture at the particular mipmap level.
 145     */
 146    if (zslice_pick >= 0)
 147       zoffset = zslice_pick;
 148
 149    for (i = 0; i < numMipLevels; i++) {
 150       unsigned int miplevel = i + mipoffset;
 151
 152       for (j = 0; j < numLayers; j++) {
 153          if (svga_is_texture_level_defined(src_tex, j+layeroffset, miplevel)) {
 154             unsigned depth = (zslice_pick < 0 ?
 155                               u_minify(src_tex->b.b.depth0, miplevel) : 1);
 156
 157             if (src_tex->b.b.nr_samples > 1) {
 158                unsigned subResource = j * numMipLevels + i;
 159                svga_texture_copy_region(svga, src_tex->handle,
 160                                         subResource, 0, 0, zoffset,
 161                                         dst, subResource, 0, 0, 0,
 162                                         src_tex->b.b.width0, src_tex->b.b.height0, depth);
 163             }
 164             else {
 165                svga_texture_copy_handle(svga,
 166                                         src_tex->handle,
 167                                         0, 0, zoffset,
 168                                         miplevel,
 169                                         j + layeroffset,
 170                                         dst, 0, 0, 0, i, j,
 171                                         u_minify(src_tex->b.b.width0, miplevel),
 172                                         u_minify(src_tex->b.b.height0, miplevel),
 173                                         depth);
 174             }
 175          }
 176       }
 177    }
 178 }
 179
 180
 181 struct svga_winsys_surface *
 182 svga_texture_view_surface(struct svga_context *svga,
 183                           struct svga_texture *tex,
 184                           unsigned bind_flags,
 185                           SVGA3dSurfaceAllFlags flags,
 186                           SVGA3dSurfaceFormat format,
 187                           unsigned start_mip,
 188                           unsigned num_mip,
 189                           int layer_pick,
 190                           unsigned num_layers,
 191                           int zslice_pick,
 192                           boolean cacheable,
 193                           struct svga_host_surface_cache_key *key) /* OUT */
 194 {
 195    struct svga_screen *ss = svga_screen(svga->pipe.screen);
 196    struct svga_winsys_surface *handle = NULL;
 197    boolean validated;
 198    boolean needCopyResource;
 199
 200    SVGA_DBG(DEBUG_PERF,
 201             "svga: Create surface view: layer %d zslice %d mips %d..%d\n",
 202             layer_pick, zslice_pick, start_mip, start_mip+num_mip-1);
 203
 204    SVGA_STATS_TIME_PUSH(ss->sws, SVGA_STATS_TIME_EMULATESURFACEVIEW);
 205
 206    key->flags = flags;
 207    key->format = format;
 208    key->numMipLevels = num_mip;
 209    key->size.width = u_minify(tex->b.b.width0, start_mip);
 210    key->size.height = u_minify(tex->b.b.height0, start_mip);
 211    key->size.depth = zslice_pick < 0 ? u_minify(tex->b.b.depth0, start_mip) : 1;
 212    key->cachable = 1;
 213    key->arraySize = 1;
 214    key->numFaces = 1;
 215
 216    /* single sample surface can be treated as non-multisamples surface */
 217    key->sampleCount = tex->b.b.nr_samples > 1 ? tex->b.b.nr_samples : 0;
 218
 219    if (key->sampleCount > 1) {
 220       assert(ss->sws->have_sm4_1);
 221       key->flags |= SVGA3D_SURFACE_MULTISAMPLE;
 222    }
 223
 224    if (tex->b.b.target == PIPE_TEXTURE_CUBE && layer_pick < 0) {
 225       key->flags |= SVGA3D_SURFACE_CUBEMAP;
 226       key->numFaces = 6;
 227    } else if (tex->b.b.target == PIPE_TEXTURE_1D_ARRAY ||
 228               tex->b.b.target == PIPE_TEXTURE_2D_ARRAY) {
 229       key->arraySize = num_layers;
 230    }
 231
 232    if (key->format == SVGA3D_FORMAT_INVALID) {
 233       key->cachable = 0;
 234       goto done;
 235    }
 236
 237    if (cacheable && tex->backed_handle &&
 238        memcmp(key, &tex->backed_key, sizeof *key) == 0) {
 239       handle = tex->backed_handle;
 240       needCopyResource = tex->backed_age < tex->age;
 241    } else {
 242       SVGA_DBG(DEBUG_DMA, "surface_create for texture view\n");
 243       handle = svga_screen_surface_create(ss, bind_flags, PIPE_USAGE_DEFAULT,
 244                                           &validated, key);
 245       needCopyResource = TRUE;
 246
 247       if (cacheable && !tex->backed_handle) {
 248          tex->backed_handle = handle;
 249          memcpy(&tex->backed_key, key, sizeof *key);
 250       }
 251    }
 252
 253    if (!handle) {
 254       key->cachable = 0;
 255       goto done;
 256    }
 257
 258    SVGA_DBG(DEBUG_DMA, " --> got sid %p (texture view)\n", handle);
 259
 260    if (layer_pick < 0)
 261       layer_pick = 0;
 262
 263    if (needCopyResource) {
 264       svga_texture_copy_handle_resource(svga, tex, handle,
 265                                         key->numMipLevels,
 266                                         key->numFaces * key->arraySize,
 267                                         zslice_pick, start_mip, layer_pick);
 268       tex->backed_age = tex->age;
 269    }
 270
 271 done:
 272    SVGA_STATS_TIME_POP(ss->sws);
 273
 274    return handle;
 275 }
 276
 277
 278 /**
 279  * A helper function to create a surface view.
 280  * The view boolean flag specifies whether svga_texture_view_surface()
 281  * will be called to create a cloned surface and resource for the view.
 282  */
 283 static struct pipe_surface *
 284 svga_create_surface_view(struct pipe_context *pipe,
 285                          struct pipe_resource *pt,
 286                          const struct pipe_surface *surf_tmpl,
 287                          boolean view)
 288 {
 289    struct svga_context *svga = svga_context(pipe);
 290    struct svga_texture *tex = svga_texture(pt);
 291    struct pipe_screen *screen = pipe->screen;
 292    struct svga_screen *ss = svga_screen(screen);
 293    struct svga_surface *s;
 294    unsigned layer, zslice, bind;
 295    unsigned nlayers = 1;
 296    SVGA3dSurfaceAllFlags flags = 0;
 297    SVGA3dSurfaceFormat format;
 298    struct pipe_surface *retVal = NULL;
 299
 300    s = CALLOC_STRUCT(svga_surface);
 301    if (!s)
 302       return NULL;
 303
 304    SVGA_STATS_TIME_PUSH(ss->sws, SVGA_STATS_TIME_CREATESURFACEVIEW);
 305
 306    if (pt->target == PIPE_TEXTURE_CUBE) {
 307       layer = surf_tmpl->u.tex.first_layer;
 308       zslice = 0;
 309    }
 310    else if (pt->target == PIPE_TEXTURE_1D_ARRAY ||
 311             pt->target == PIPE_TEXTURE_2D_ARRAY ||
 312             pt->target == PIPE_TEXTURE_CUBE_ARRAY) {
 313       layer = surf_tmpl->u.tex.first_layer;
 314       zslice = 0;
 315       nlayers = surf_tmpl->u.tex.last_layer - surf_tmpl->u.tex.first_layer + 1;
 316    }
 317    else {
 318       layer = 0;
 319       zslice = surf_tmpl->u.tex.first_layer;
 320    }
 321
 322    pipe_reference_init(&s->base.reference, 1);
 323    pipe_resource_reference(&s->base.texture, pt);
 324    s->base.context = pipe;
 325    s->base.format = surf_tmpl->format;
 326    s->base.width = u_minify(pt->width0, surf_tmpl->u.tex.level);
 327    s->base.height = u_minify(pt->height0, surf_tmpl->u.tex.level);
 328    s->base.u.tex.level = surf_tmpl->u.tex.level;
 329    s->base.u.tex.first_layer = surf_tmpl->u.tex.first_layer;
 330    s->base.u.tex.last_layer = surf_tmpl->u.tex.last_layer;
 331    s->view_id = SVGA3D_INVALID_ID;
 332
 333    s->backed = NULL;
 334
 335    if (util_format_is_depth_or_stencil(surf_tmpl->format)) {
 336       flags = SVGA3D_SURFACE_HINT_DEPTHSTENCIL |
 337               SVGA3D_SURFACE_BIND_DEPTH_STENCIL;
 338       bind = PIPE_BIND_DEPTH_STENCIL;
 339    }
 340    else {
 341       flags = SVGA3D_SURFACE_HINT_RENDERTARGET |
 342               SVGA3D_SURFACE_BIND_RENDER_TARGET;
 343       bind = PIPE_BIND_RENDER_TARGET;
 344    }
 345
 346    if (tex->imported) {
 347       /* imported resource (a window) */
 348       format = tex->key.format;
 349       if (util_format_is_srgb(surf_tmpl->format)) {
 350          /* sRGB rendering to window */
 351          format = svga_linear_to_srgb(format);
 352       }
 353    }
 354    else {
 355       format = svga_translate_format(ss, surf_tmpl->format, bind);
 356    }
 357
 358    assert(format != SVGA3D_FORMAT_INVALID);
 359
 360    if (view) {
 361       SVGA_DBG(DEBUG_VIEWS,
 362                "New backed surface view: resource %p, level %u layer %u z %u, %p\n",
 363                pt, surf_tmpl->u.tex.level, layer, zslice, s);
 364
 365       if (svga_have_vgpu10(svga)) {
 366          switch (pt->target) {
 367          case PIPE_TEXTURE_1D:
 368             flags |= SVGA3D_SURFACE_1D;
 369             break;
 370          case PIPE_TEXTURE_1D_ARRAY:
 371             flags |= SVGA3D_SURFACE_1D | SVGA3D_SURFACE_ARRAY;
 372             break;
 373          case PIPE_TEXTURE_2D_ARRAY:
 374             flags |= SVGA3D_SURFACE_ARRAY;
 375             break;
 376          case PIPE_TEXTURE_3D:
 377             flags |= SVGA3D_SURFACE_VOLUME;
 378             break;
 379          case PIPE_TEXTURE_CUBE:
 380             if (nlayers == 6)
 381                flags |= SVGA3D_SURFACE_CUBEMAP;
 382             break;
 383          case PIPE_TEXTURE_CUBE_ARRAY:
 384             if (nlayers % 6 == 0)
 385                flags |= SVGA3D_SURFACE_CUBEMAP | SVGA3D_SURFACE_ARRAY;
 386             break;
 387          default:
 388             break;
 389          }
 390       }
 391
 392       /* When we clone the surface view resource, use the format used in
 393        * the creation of the original resource.
 394        */
 395       s->handle = svga_texture_view_surface(svga, tex, bind, flags,
 396                                             tex->key.format,
 397                                             surf_tmpl->u.tex.level, 1,
 398                                             layer, nlayers, zslice,
 399                                             TRUE, &s->key);
 400       if (!s->handle) {
 401          FREE(s);
 402          goto done;
 403       }
 404
 405       s->key.format = format;
 406       s->real_layer = 0;
 407       s->real_level = 0;
 408       s->real_zslice = 0;
 409    } else {
 410       SVGA_DBG(DEBUG_VIEWS,
 411                "New surface view: resource %p, level %u, layer %u, z %u, %p\n",
 412                pt, surf_tmpl->u.tex.level, layer, zslice, s);
 413
 414       memset(&s->key, 0, sizeof s->key);
 415       s->key.format = format;
 416       s->handle = tex->handle;
 417       s->real_layer = layer;
 418       s->real_zslice = zslice;
 419       s->real_level = surf_tmpl->u.tex.level;
 420    }
 421
 422    svga->hud.num_surface_views++;
 423    retVal = &s->base;
 424
 425 done:
 426    SVGA_STATS_TIME_POP(ss->sws);
 427    return retVal;
 428 }
 429
 430
 431 static struct pipe_surface *
 432 svga_create_surface(struct pipe_context *pipe,
 433                     struct pipe_resource *pt,
 434                     const struct pipe_surface *surf_tmpl)
 435 {
 436    struct svga_context *svga = svga_context(pipe);
 437    struct pipe_screen *screen = pipe->screen;
 438    struct pipe_surface *surf = NULL;
 439    boolean view = FALSE;
 440
 441    SVGA_STATS_TIME_PUSH(svga_sws(svga), SVGA_STATS_TIME_CREATESURFACE);
 442
 443    if (svga_screen(screen)->debug.force_surface_view)
 444       view = TRUE;
 445
 446    if (surf_tmpl->u.tex.level != 0 &&
 447        svga_screen(screen)->debug.force_level_surface_view)
 448       view = TRUE;
 449
 450    if (pt->target == PIPE_TEXTURE_3D)
 451       view = TRUE;
 452
 453    if (svga_have_vgpu10(svga) || svga_screen(screen)->debug.no_surface_view)
 454       view = FALSE;
 455
 456    surf = svga_create_surface_view(pipe, pt, surf_tmpl, view);
 457
 458    SVGA_STATS_TIME_POP(svga_sws(svga));
 459
 460    return surf;
 461 }
 462
 463
 464 /**
 465  * Clone the surface view and its associated resource.
 466  */
 467 static struct svga_surface *
 468 create_backed_surface_view(struct svga_context *svga, struct svga_surface *s)
 469 {
 470    struct svga_texture *tex = svga_texture(s->base.texture);
 471
 472    if (!s->backed) {
 473       struct pipe_surface *backed_view;
 474
 475       SVGA_STATS_TIME_PUSH(svga_sws(svga),
 476                            SVGA_STATS_TIME_CREATEBACKEDSURFACEVIEW);
 477
 478       backed_view = svga_create_surface_view(&svga->pipe,
 479                                              &tex->b.b,
 480                                              &s->base,
 481                                              TRUE);
 482       if (!backed_view)
 483          goto done;
 484
 485       s->backed = svga_surface(backed_view);
 486
 487       SVGA_STATS_TIME_POP(svga_sws(svga));
 488    }
 489    else if (s->backed->age < tex->age) {
 490       /*
 491        * There is already an existing backing surface, but we still need to
 492        * sync the backing resource if the original resource has been modified
 493        * since the last copy.
 494        */
 495       struct svga_surface *bs = s->backed;
 496       unsigned int layer, zslice;
 497
 498       assert(bs->handle);
 499
 500       switch (tex->b.b.target) {
 501       case PIPE_TEXTURE_CUBE:
 502       case PIPE_TEXTURE_CUBE_ARRAY:
 503       case PIPE_TEXTURE_1D_ARRAY:
 504       case PIPE_TEXTURE_2D_ARRAY:
 505          layer = s->base.u.tex.first_layer;
 506          zslice = 0;
 507          break;
 508       default:
 509          layer = 0;
 510          zslice = s->base.u.tex.first_layer;
 511       }
 512
 513       svga_texture_copy_handle_resource(svga, tex, bs->handle,
 514                                         bs->key.numMipLevels,
 515                                         bs->key.numFaces * bs->key.arraySize,
 516                                         zslice, s->base.u.tex.level, layer);
 517    }
 518
 519    svga_mark_surface_dirty(&s->backed->base);
 520    s->backed->age = tex->age;
 521
 522 done:
 523    return s->backed;
 524 }
 525
 526 /**
 527  * Create a DX RenderTarget/DepthStencil View for the given surface,
 528  * if needed.
 529  */
 530 struct pipe_surface *
 531 svga_validate_surface_view(struct svga_context *svga, struct svga_surface *s)
 532 {
 533    enum pipe_error ret = PIPE_OK;
 534    enum pipe_shader_type shader;
 535
 536    assert(svga_have_vgpu10(svga));
 537    assert(s);
 538
 539    SVGA_STATS_TIME_PUSH(svga_sws(svga),
 540                         SVGA_STATS_TIME_VALIDATESURFACEVIEW);
 541
 542    /**
 543     * DX spec explicitly specifies that no resource can be bound to a render
 544     * target view and a shader resource view simultanously.
 545     * So first check if the resource bound to this surface view collides with
 546     * a sampler view. If so, then we will clone this surface view and its
 547     * associated resource. We will then use the cloned surface view for
 548     * render target.
 549     */
 550    for (shader = PIPE_SHADER_VERTEX; shader <= PIPE_SHADER_TESS_EVAL; shader++) {
 551       if (svga_check_sampler_view_resource_collision(svga, s->handle, shader)) {
 552          SVGA_DBG(DEBUG_VIEWS,
 553                   "same resource used in shaderResource and renderTarget 0x%x\n",
 554                   s->handle);
 555          s = create_backed_surface_view(svga, s);
 556
 557          if (s)
 558             svga->state.hw_draw.has_backed_views = TRUE;
 559
 560          /* s may be null here if the function failed */
 561          break;
 562       }
 563    }
 564
 565    /**
 566     * Create an alternate surface view for the specified context if the
 567     * view was created for another context.
 568     */
 569    if (s && s->base.context != &svga->pipe) {
 570       struct pipe_surface *surf;
 571       surf = svga_create_surface_view(&svga->pipe, s->base.texture, &s->base, FALSE);
 572       s = svga_surface(surf);
 573    }
 574
 575    if (s && s->view_id == SVGA3D_INVALID_ID) {
 576       SVGA3dResourceType resType;
 577       SVGA3dRenderTargetViewDesc desc;
 578       struct svga_texture *stex = svga_texture(s->base.texture);
 579
 580       if (stex->validated == FALSE) {
 581          assert(stex->handle);
 582
 583          /* We are about to render into a surface that has not been validated.
 584           * First invalidate the surface so that the device does not
 585           * need to update the host-side copy with the invalid
 586           * content when the associated mob is first bound to the surface.
 587           */
 588          SVGA_RETRY(svga, SVGA3D_InvalidateGBSurface(svga->swc, stex->handle));
 589          stex->validated = TRUE;
 590       }
 591
 592       desc.tex.mipSlice = s->real_level;
 593       desc.tex.firstArraySlice = s->real_layer + s->real_zslice;
 594       desc.tex.arraySize =
 595          s->base.u.tex.last_layer - s->base.u.tex.first_layer + 1;
 596
 597       s->view_id = util_bitmask_add(svga->surface_view_id_bm);
 598
 599       resType = svga_resource_type(s->base.texture->target);
 600
 601       if (util_format_is_depth_or_stencil(s->base.format)) {
 602          ret = SVGA3D_vgpu10_DefineDepthStencilView(svga->swc,
 603                                                     s->view_id,
 604                                                     s->handle,
 605                                                     s->key.format,
 606                                                     resType,
 607                                                     &desc);
 608       }
 609       else {
 610          SVGA3dSurfaceFormat view_format = s->key.format;
 611          const struct svga_texture *stex = svga_texture(s->base.texture);
 612
 613          /* Can't create RGBA render target view of a RGBX surface so adjust
 614           * the view format.  We do something similar for texture samplers in
 615           * svga_validate_pipe_sampler_view().
 616           */
 617          if (view_format == SVGA3D_B8G8R8A8_UNORM &&
 618              (stex->key.format == SVGA3D_B8G8R8X8_UNORM ||
 619               stex->key.format == SVGA3D_B8G8R8X8_TYPELESS)) {
 620             view_format = SVGA3D_B8G8R8X8_UNORM;
 621          }
 622
 623          ret = SVGA3D_vgpu10_DefineRenderTargetView(svga->swc,
 624                                                     s->view_id,
 625                                                     s->handle,
 626                                                     view_format,
 627                                                     resType,
 628                                                     &desc);
 629       }
 630
 631       if (ret != PIPE_OK) {
 632          util_bitmask_clear(svga->surface_view_id_bm, s->view_id);
 633          s->view_id = SVGA3D_INVALID_ID;
 634          s = NULL;
 635       }
 636    }
 637
 638    SVGA_STATS_TIME_POP(svga_sws(svga));
 639
 640    return s ? &s->base : NULL;
 641 }
 642
 643
 644
 645 static void
 646 svga_surface_destroy(struct pipe_context *pipe,
 647                      struct pipe_surface *surf)
 648 {
 649    struct svga_context *svga = svga_context(pipe);
 650    struct svga_surface *s = svga_surface(surf);
 651    struct svga_texture *t = svga_texture(surf->texture);
 652    struct svga_screen *ss = svga_screen(surf->texture->screen);
 653
 654    SVGA_STATS_TIME_PUSH(ss->sws, SVGA_STATS_TIME_DESTROYSURFACE);
 655
 656    /* Destroy the backed view surface if it exists */
 657    if (s->backed) {
 658       svga_surface_destroy(pipe, &s->backed->base);
 659       s->backed = NULL;
 660    }
 661
 662    /* Destroy the surface handle if this is a backed handle and
 663     * it is not being cached in the texture.
 664     */
 665    if (s->handle != t->handle && s->handle != t->backed_handle) {
 666       SVGA_DBG(DEBUG_DMA, "unref sid %p (tex surface)\n", s->handle);
 667       svga_screen_surface_destroy(ss, &s->key, &s->handle);
 668    }
 669
 670    if (s->view_id != SVGA3D_INVALID_ID) {
 671       /* The SVGA3D device will generate a device error if the
 672        * render target view or depth stencil view is destroyed from
 673        * a context other than the one it was created with.
 674        * Similar to shader resource view, in this case, we will skip
 675        * the destroy for now.
 676        */
 677       if (surf->context != pipe) {
 678          _debug_printf("context mismatch in %s\n", __func__);
 679       }
 680       else {
 681          assert(svga_have_vgpu10(svga));
 682          if (util_format_is_depth_or_stencil(s->base.format)) {
 683             SVGA_RETRY(svga, SVGA3D_vgpu10_DestroyDepthStencilView(svga->swc,
 684                                                                    s->view_id));
 685          }
 686          else {
 687             SVGA_RETRY(svga, SVGA3D_vgpu10_DestroyRenderTargetView(svga->swc,
 688                                                                    s->view_id));
 689          }
 690          util_bitmask_clear(svga->surface_view_id_bm, s->view_id);
 691       }
 692    }
 693
 694    pipe_resource_reference(&surf->texture, NULL);
 695    FREE(surf);
 696
 697    svga->hud.num_surface_views--;
 698    SVGA_STATS_TIME_POP(ss->sws);
 699 }
 700
 701
 702 static void
 703 svga_mark_surface_dirty(struct pipe_surface *surf)
 704 {
 705    struct svga_surface *s = svga_surface(surf);
 706    struct svga_texture *tex = svga_texture(surf->texture);
 707
 708    if (!s->dirty) {
 709       s->dirty = TRUE;
 710
 711       if (s->handle == tex->handle) {
 712          /* hmm so 3d textures always have all their slices marked ? */
 713          svga_define_texture_level(tex, surf->u.tex.first_layer,
 714                                    surf->u.tex.level);
 715       }
 716       else {
 717          /* this will happen later in svga_propagate_surface */
 718       }
 719    }
 720
 721    /* Increment the view_age and texture age for this surface's mipmap
 722     * level so that any sampler views into the texture are re-validated too.
 723     * Note: we age the texture for backed surface view only when the
 724     *       backed surface is propagated to the original surface.
 725     */
 726    if (s->handle == tex->handle)
 727       svga_age_texture_view(tex, surf->u.tex.level);
 728 }
 729
 730
 731 void
 732 svga_mark_surfaces_dirty(struct svga_context *svga)
 733 {
 734    unsigned i;
 735    struct svga_hw_clear_state *hw = &svga->state.hw_clear;
 736
 737    if (svga_have_vgpu10(svga)) {
 738
 739       /* For VGPU10, mark the dirty bit in the rendertarget/depth stencil view surface.
 740        * This surface can be the backed surface.
 741        */
 742       for (i = 0; i < hw->num_rendertargets; i++) {
 743          if (hw->rtv[i])
 744             svga_mark_surface_dirty(hw->rtv[i]);
 745       }
 746       if (hw->dsv)
 747          svga_mark_surface_dirty(hw->dsv);
 748    } else {
 749       for (i = 0; i < svga->curr.framebuffer.nr_cbufs; i++) {
 750          if (svga->curr.framebuffer.cbufs[i])
 751             svga_mark_surface_dirty(svga->curr.framebuffer.cbufs[i]);
 752       }
 753       if (svga->curr.framebuffer.zsbuf)
 754          svga_mark_surface_dirty(svga->curr.framebuffer.zsbuf);
 755    }
 756 }
 757
 758
 759 /**
 760  * Progagate any changes from surfaces to texture.
 761  * pipe is optional context to inline the blit command in.
 762  */
 763 void
 764 svga_propagate_surface(struct svga_context *svga, struct pipe_surface *surf,
 765                        boolean reset)
 766 {
 767    struct svga_surface *s = svga_surface(surf);
 768    struct svga_texture *tex = svga_texture(surf->texture);
 769    struct svga_screen *ss = svga_screen(surf->texture->screen);
 770
 771    if (!s->dirty)
 772       return;
 773
 774    SVGA_STATS_TIME_PUSH(ss->sws, SVGA_STATS_TIME_PROPAGATESURFACE);
 775
 776    /* Reset the dirty flag if specified. This is to ensure that
 777     * the dirty flag will not be reset and stay unset when the backing
 778     * surface is still being bound and rendered to.
 779     * The reset flag will be set to TRUE when the surface is propagated
 780     * and will be unbound.
 781     */
 782    s->dirty = !reset;
 783
 784    ss->texture_timestamp++;
 785    svga_age_texture_view(tex, surf->u.tex.level);
 786
 787    if (s->handle != tex->handle) {
 788       unsigned zslice, layer;
 789       unsigned nlayers = 1;
 790       unsigned i;
 791       unsigned numMipLevels = tex->b.b.last_level + 1;
 792       unsigned srcLevel = s->real_level;
 793       unsigned dstLevel = surf->u.tex.level;
 794       unsigned width = u_minify(tex->b.b.width0, dstLevel);
 795       unsigned height = u_minify(tex->b.b.height0, dstLevel);
 796
 797       if (surf->texture->target == PIPE_TEXTURE_CUBE) {
 798          zslice = 0;
 799          layer = surf->u.tex.first_layer;
 800       }
 801       else if (surf->texture->target == PIPE_TEXTURE_1D_ARRAY ||
 802                surf->texture->target == PIPE_TEXTURE_2D_ARRAY ||
 803                surf->texture->target == PIPE_TEXTURE_CUBE_ARRAY) {
 804          zslice = 0;
 805          layer = surf->u.tex.first_layer;
 806          nlayers = surf->u.tex.last_layer - surf->u.tex.first_layer + 1;
 807       }
 808       else {
 809          zslice = surf->u.tex.first_layer;
 810          layer = 0;
 811       }
 812
 813       SVGA_DBG(DEBUG_VIEWS,
 814                "Propagate surface %p to resource %p, level %u\n",
 815                surf, tex, surf->u.tex.level);
 816
 817       if (svga_have_vgpu10(svga)) {
 818          unsigned srcSubResource, dstSubResource;
 819
 820          for (i = 0; i < nlayers; i++) {
 821             srcSubResource = (s->real_layer + i) * numMipLevels + srcLevel;
 822             dstSubResource = (layer + i) * numMipLevels + dstLevel;
 823
 824             svga_texture_copy_region(svga,
 825                                      s->handle, srcSubResource, 0, 0, 0,
 826                                      tex->handle, dstSubResource, 0, 0, zslice,
 827                                      width, height, 1);
 828             svga_define_texture_level(tex, layer + i, dstLevel);
 829          }
 830       }
 831       else {
 832          for (i = 0; i < nlayers; i++) {
 833             svga_texture_copy_handle(svga,
 834                                      s->handle, 0, 0, 0, srcLevel,
 835                                      s->real_layer + i,
 836                                      tex->handle, 0, 0, zslice, dstLevel,
 837                                      layer + i,
 838                                      width, height, 1);
 839
 840             svga_define_texture_level(tex, layer + i, dstLevel);
 841          }
 842       }
 843
 844       /* Sync the surface view age with the texture age */
 845       s->age = tex->age;
 846
 847       /* If this backed surface is cached in the texture,
 848        * update the backed age as well.
 849        */
 850       if (tex->backed_handle == s->handle) {
 851          tex->backed_age = tex->age;
 852       }
 853    }
 854
 855    SVGA_STATS_TIME_POP(ss->sws);
 856 }
 857
 858
 859 /**
 860  * If any of the render targets are in backing texture views, propagate any
 861  * changes to them back to the original texture.
 862  */
 863 void
 864 svga_propagate_rendertargets(struct svga_context *svga)
 865 {
 866    unsigned i;
 867
 868    /* Early exit if there is no backing texture views in use */
 869    if (!svga->state.hw_draw.has_backed_views)
 870       return;
 871
 872    /* Note that we examine the svga->state.hw_draw.framebuffer surfaces,
 873     * not the svga->curr.framebuffer surfaces, because it's the former
 874     * surfaces which may be backing surface views (the actual render targets).
 875     */
 876    for (i = 0; i < svga->state.hw_clear.num_rendertargets; i++) {
 877       struct pipe_surface *s = svga->state.hw_clear.rtv[i];
 878       if (s) {
 879          svga_propagate_surface(svga, s, FALSE);
 880       }
 881    }
 882
 883    if (svga->state.hw_clear.dsv) {
 884       svga_propagate_surface(svga, svga->state.hw_clear.dsv, FALSE);
 885    }
 886 }
 887
 888
 889 /**
 890  * Check if we should call svga_propagate_surface on the surface.
 891  */
 892 boolean
 893 svga_surface_needs_propagation(const struct pipe_surface *surf)
 894 {
 895    const struct svga_surface *s = svga_surface_const(surf);
 896    struct svga_texture *tex = svga_texture(surf->texture);
 897
 898    return s->dirty && s->handle != tex->handle;
 899 }
 900
 901
 902 static void
 903 svga_get_sample_position(struct pipe_context *context,
 904                          unsigned sample_count, unsigned sample_index,
 905                          float *pos_out)
 906 {
 907    /* We can't actually query the device to learn the sample positions.
 908     * These were grabbed from nvidia's driver.
 909     */
 910    static const float pos1[1][2] = {
 911       { 0.5, 0.5 }
 912    };
 913    static const float pos2[2][2] = {
 914       { 0.75, 0.75 },
 915       { 0.25, 0.25 }
 916    };
 917    static const float pos4[4][2] = {
 918       { 0.375000, 0.125000 },
 919       { 0.875000, 0.375000 },
 920       { 0.125000, 0.625000 },
 921       { 0.625000, 0.875000 }
 922    };
 923    static const float pos8[8][2] = {
 924       { 0.562500, 0.312500 },
 925       { 0.437500, 0.687500 },
 926       { 0.812500, 0.562500 },
 927       { 0.312500, 0.187500 },
 928       { 0.187500, 0.812500 },
 929       { 0.062500, 0.437500 },
 930       { 0.687500, 0.937500 },
 931       { 0.937500, 0.062500 }
 932    };
 933    static const float pos16[16][2] = {
 934       { 0.187500, 0.062500 },
 935       { 0.437500, 0.187500 },
 936       { 0.062500, 0.312500 },
 937       { 0.312500, 0.437500 },
 938       { 0.687500, 0.062500 },
 939       { 0.937500, 0.187500 },
 940       { 0.562500, 0.312500 },
 941       { 0.812500, 0.437500 },
 942       { 0.187500, 0.562500 },
 943       { 0.437500, 0.687500 },
 944       { 0.062500, 0.812500 },
 945       { 0.312500, 0.937500 },
 946       { 0.687500, 0.562500 },
 947       { 0.937500, 0.687500 },
 948       { 0.562500, 0.812500 },
 949       { 0.812500, 0.937500 }
 950    };
 951    const float (*positions)[2];
 952
 953    switch (sample_count) {
 954    case 2:
 955       positions = pos2;
 956       break;
 957    case 4:
 958       positions = pos4;
 959       break;
 960    case 8:
 961       positions = pos8;
 962       break;
 963    case 16:
 964       positions = pos16;
 965       break;
 966    default:
 967       positions = pos1;
 968    }
 969
 970    pos_out[0] = positions[sample_index][0];
 971    pos_out[1] = positions[sample_index][1];
 972 }
 973
 974
 975 void
 976 svga_init_surface_functions(struct svga_context *svga)
 977 {
 978    svga->pipe.create_surface = svga_create_surface;
 979    svga->pipe.surface_destroy = svga_surface_destroy;
 980    svga->pipe.get_sample_position = svga_get_sample_position;
 981 }