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_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    enum pipe_error ret;
  58    SVGA3dCopyBox box;
  59
  60    assert(svga_have_vgpu10(svga));
  61
  62    box.x = dst_x;
  63    box.y = dst_y;
  64    box.z = dst_z;
  65    box.w = width;
  66    box.h = height;
  67    box.d = depth;
  68    box.srcx = src_x;
  69    box.srcy = src_y;
  70    box.srcz = src_z;
  71
  72    ret = SVGA3D_vgpu10_PredCopyRegion(svga->swc,
  73                                       dst_handle, dstSubResource,
  74                                       src_handle, srcSubResource, &box);
  75    if (ret != PIPE_OK) {
  76       svga_context_flush(svga, NULL);
  77       ret = SVGA3D_vgpu10_PredCopyRegion(svga->swc,
  78                                          dst_handle, dstSubResource,
  79                                          src_handle, srcSubResource, &box);
  80       assert(ret == PIPE_OK);
  81    }
  82 }
  83
  84
  85 void
  86 svga_texture_copy_handle(struct svga_context *svga,
  87                          struct svga_winsys_surface *src_handle,
  88                          unsigned src_x, unsigned src_y, unsigned src_z,
  89                          unsigned src_level, unsigned src_layer,
  90                          struct svga_winsys_surface *dst_handle,
  91                          unsigned dst_x, unsigned dst_y, unsigned dst_z,
  92                          unsigned dst_level, unsigned dst_layer,
  93                          unsigned width, unsigned height, unsigned depth)
  94 {
  95    struct svga_surface dst, src;
  96    enum pipe_error ret;
  97    SVGA3dCopyBox box, *boxes;
  98
  99    assert(svga);
 100
 101    src.handle = src_handle;
 102    src.real_level = src_level;
 103    src.real_layer = src_layer;
 104    src.real_zslice = 0;
 105
 106    dst.handle = dst_handle;
 107    dst.real_level = dst_level;
 108    dst.real_layer = dst_layer;
 109    dst.real_zslice = 0;
 110
 111    box.x = dst_x;
 112    box.y = dst_y;
 113    box.z = dst_z;
 114    box.w = width;
 115    box.h = height;
 116    box.d = depth;
 117    box.srcx = src_x;
 118    box.srcy = src_y;
 119    box.srcz = src_z;
 120
 121 /*
 122    SVGA_DBG(DEBUG_VIEWS, "mipcopy src: %p %u (%ux%ux%u), dst: %p %u (%ux%ux%u)\n",
 123             src_handle, src_level, src_x, src_y, src_z,
 124             dst_handle, dst_level, dst_x, dst_y, dst_z);
 125 */
 126
 127    ret = SVGA3D_BeginSurfaceCopy(svga->swc,
 128                                  &src.base,
 129                                  &dst.base,
 130                                  &boxes, 1);
 131    if (ret != PIPE_OK) {
 132       svga_context_flush(svga, NULL);
 133       ret = SVGA3D_BeginSurfaceCopy(svga->swc,
 134                                     &src.base,
 135                                     &dst.base,
 136                                     &boxes, 1);
 137       assert(ret == PIPE_OK);
 138    }
 139    *boxes = box;
 140    SVGA_FIFOCommitAll(svga->swc);
 141 }
 142
 143
 144 /* A helper function to sync up the two surface handles.
 145  */
 146 static void
 147 svga_texture_copy_handle_resource(struct svga_context *svga,
 148                                   struct svga_texture *src_tex,
 149                                   struct svga_winsys_surface *dst,
 150                                   unsigned int numMipLevels,
 151                                   unsigned int numLayers,
 152                                   int zslice_pick,
 153                                   unsigned int mipoffset,
 154                                   unsigned int layeroffset)
 155 {
 156    unsigned int i, j;
 157    unsigned int zoffset = 0;
 158
 159    /* A negative zslice_pick implies zoffset at 0, and depth to copy is
 160     * from the depth of the texture at the particular mipmap level.
 161     */
 162    if (zslice_pick >= 0)
 163       zoffset = zslice_pick;
 164
 165    for (i = 0; i < numMipLevels; i++) {
 166       unsigned int miplevel = i + mipoffset;
 167
 168       for (j = 0; j < numLayers; j++) {
 169          if (svga_is_texture_level_defined(src_tex, j+layeroffset, miplevel)) {
 170             unsigned depth = (zslice_pick < 0 ?
 171                               u_minify(src_tex->b.b.depth0, miplevel) : 1);
 172
 173             if (src_tex->b.b.nr_samples > 1) {
 174                unsigned subResource = j * numMipLevels + i;
 175                svga_texture_copy_region(svga, src_tex->handle,
 176                                         subResource, 0, 0, zoffset,
 177                                         dst, subResource, 0, 0, 0,
 178                                         src_tex->b.b.width0, src_tex->b.b.height0, depth);
 179             }
 180             else {
 181                svga_texture_copy_handle(svga,
 182                                         src_tex->handle,
 183                                         0, 0, zoffset,
 184                                         miplevel,
 185                                         j + layeroffset,
 186                                         dst, 0, 0, 0, i, j,
 187                                         u_minify(src_tex->b.b.width0, miplevel),
 188                                         u_minify(src_tex->b.b.height0, miplevel),
 189                                         depth);
 190             }
 191          }
 192       }
 193    }
 194 }
 195
 196
 197 struct svga_winsys_surface *
 198 svga_texture_view_surface(struct svga_context *svga,
 199                           struct svga_texture *tex,
 200                           unsigned bind_flags,
 201                           SVGA3dSurfaceAllFlags flags,
 202                           SVGA3dSurfaceFormat format,
 203                           unsigned start_mip,
 204                           unsigned num_mip,
 205                           int layer_pick,
 206                           unsigned num_layers,
 207                           int zslice_pick,
 208                           boolean cacheable,
 209                           struct svga_host_surface_cache_key *key) /* OUT */
 210 {
 211    struct svga_screen *ss = svga_screen(svga->pipe.screen);
 212    struct svga_winsys_surface *handle = NULL;
 213    boolean validated;
 214    boolean needCopyResource;
 215
 216    SVGA_DBG(DEBUG_PERF,
 217             "svga: Create surface view: layer %d zslice %d mips %d..%d\n",
 218             layer_pick, zslice_pick, start_mip, start_mip+num_mip-1);
 219
 220    SVGA_STATS_TIME_PUSH(ss->sws, SVGA_STATS_TIME_EMULATESURFACEVIEW);
 221
 222    key->flags = flags;
 223    key->format = format;
 224    key->numMipLevels = num_mip;
 225    key->size.width = u_minify(tex->b.b.width0, start_mip);
 226    key->size.height = u_minify(tex->b.b.height0, start_mip);
 227    key->size.depth = zslice_pick < 0 ? u_minify(tex->b.b.depth0, start_mip) : 1;
 228    key->cachable = 1;
 229    key->arraySize = 1;
 230    key->numFaces = 1;
 231
 232    /* single sample surface can be treated as non-multisamples surface */
 233    key->sampleCount = tex->b.b.nr_samples > 1 ? tex->b.b.nr_samples : 0;
 234
 235    if (key->sampleCount > 1) {
 236       assert(ss->sws->have_sm4_1);
 237       key->flags |= SVGA3D_SURFACE_MULTISAMPLE;
 238    }
 239
 240    if (tex->b.b.target == PIPE_TEXTURE_CUBE && layer_pick < 0) {
 241       key->flags |= SVGA3D_SURFACE_CUBEMAP;
 242       key->numFaces = 6;
 243    } else if (tex->b.b.target == PIPE_TEXTURE_1D_ARRAY ||
 244               tex->b.b.target == PIPE_TEXTURE_2D_ARRAY) {
 245       key->arraySize = num_layers;
 246    }
 247
 248    if (key->format == SVGA3D_FORMAT_INVALID) {
 249       key->cachable = 0;
 250       goto done;
 251    }
 252
 253    if (cacheable && tex->backed_handle &&
 254        memcmp(key, &tex->backed_key, sizeof *key) == 0) {
 255       handle = tex->backed_handle;
 256       needCopyResource = tex->backed_age < tex->age;
 257    } else {
 258       SVGA_DBG(DEBUG_DMA, "surface_create for texture view\n");
 259       handle = svga_screen_surface_create(ss, bind_flags, PIPE_USAGE_DEFAULT,
 260                                           &validated, key);
 261       needCopyResource = TRUE;
 262
 263       if (cacheable && !tex->backed_handle) {
 264          tex->backed_handle = handle;
 265          memcpy(&tex->backed_key, key, sizeof *key);
 266       }
 267    }
 268
 269    if (!handle) {
 270       key->cachable = 0;
 271       goto done;
 272    }
 273
 274    SVGA_DBG(DEBUG_DMA, " --> got sid %p (texture view)\n", handle);
 275
 276    if (layer_pick < 0)
 277       layer_pick = 0;
 278
 279    if (needCopyResource) {
 280       svga_texture_copy_handle_resource(svga, tex, handle,
 281                                         key->numMipLevels,
 282                                         key->numFaces * key->arraySize,
 283                                         zslice_pick, start_mip, layer_pick);
 284       tex->backed_age = tex->age;
 285    }
 286
 287 done:
 288    SVGA_STATS_TIME_POP(ss->sws);
 289
 290    return handle;
 291 }
 292
 293
 294 /**
 295  * A helper function to create a surface view.
 296  * The view boolean flag specifies whether svga_texture_view_surface()
 297  * will be called to create a cloned surface and resource for the view.
 298  */
 299 static struct pipe_surface *
 300 svga_create_surface_view(struct pipe_context *pipe,
 301                          struct pipe_resource *pt,
 302                          const struct pipe_surface *surf_tmpl,
 303                          boolean view)
 304 {
 305    struct svga_context *svga = svga_context(pipe);
 306    struct svga_texture *tex = svga_texture(pt);
 307    struct pipe_screen *screen = pipe->screen;
 308    struct svga_screen *ss = svga_screen(screen);
 309    struct svga_surface *s;
 310    unsigned layer, zslice, bind;
 311    unsigned nlayers = 1;
 312    SVGA3dSurfaceAllFlags flags = 0;
 313    SVGA3dSurfaceFormat format;
 314    struct pipe_surface *retVal = NULL;
 315
 316    s = CALLOC_STRUCT(svga_surface);
 317    if (!s)
 318       return NULL;
 319
 320    SVGA_STATS_TIME_PUSH(ss->sws, SVGA_STATS_TIME_CREATESURFACEVIEW);
 321
 322    if (pt->target == PIPE_TEXTURE_CUBE) {
 323       layer = surf_tmpl->u.tex.first_layer;
 324       zslice = 0;
 325    }
 326    else if (pt->target == PIPE_TEXTURE_1D_ARRAY ||
 327             pt->target == PIPE_TEXTURE_2D_ARRAY ||
 328             pt->target == PIPE_TEXTURE_CUBE_ARRAY) {
 329       layer = surf_tmpl->u.tex.first_layer;
 330       zslice = 0;
 331       nlayers = surf_tmpl->u.tex.last_layer - surf_tmpl->u.tex.first_layer + 1;
 332    }
 333    else {
 334       layer = 0;
 335       zslice = surf_tmpl->u.tex.first_layer;
 336    }
 337
 338    pipe_reference_init(&s->base.reference, 1);
 339    pipe_resource_reference(&s->base.texture, pt);
 340    s->base.context = pipe;
 341    s->base.format = surf_tmpl->format;
 342    s->base.width = u_minify(pt->width0, surf_tmpl->u.tex.level);
 343    s->base.height = u_minify(pt->height0, surf_tmpl->u.tex.level);
 344    s->base.u.tex.level = surf_tmpl->u.tex.level;
 345    s->base.u.tex.first_layer = surf_tmpl->u.tex.first_layer;
 346    s->base.u.tex.last_layer = surf_tmpl->u.tex.last_layer;
 347    s->view_id = SVGA3D_INVALID_ID;
 348
 349    s->backed = NULL;
 350
 351    if (util_format_is_depth_or_stencil(surf_tmpl->format)) {
 352       flags = SVGA3D_SURFACE_HINT_DEPTHSTENCIL |
 353               SVGA3D_SURFACE_BIND_DEPTH_STENCIL;
 354       bind = PIPE_BIND_DEPTH_STENCIL;
 355    }
 356    else {
 357       flags = SVGA3D_SURFACE_HINT_RENDERTARGET |
 358               SVGA3D_SURFACE_BIND_RENDER_TARGET;
 359       bind = PIPE_BIND_RENDER_TARGET;
 360    }
 361
 362    if (tex->imported) {
 363       /* imported resource (a window) */
 364       format = tex->key.format;
 365       if (util_format_is_srgb(surf_tmpl->format)) {
 366          /* sRGB rendering to window */
 367          format = svga_linear_to_srgb(format);
 368       }
 369    }
 370    else {
 371       format = svga_translate_format(ss, surf_tmpl->format, bind);
 372    }
 373
 374    assert(format != SVGA3D_FORMAT_INVALID);
 375
 376    if (view) {
 377       SVGA_DBG(DEBUG_VIEWS,
 378                "New backed surface view: resource %p, level %u layer %u z %u, %p\n",
 379                pt, surf_tmpl->u.tex.level, layer, zslice, s);
 380
 381       if (svga_have_vgpu10(svga)) {
 382          switch (pt->target) {
 383          case PIPE_TEXTURE_1D:
 384             flags |= SVGA3D_SURFACE_1D;
 385             break;
 386          case PIPE_TEXTURE_1D_ARRAY:
 387             flags |= SVGA3D_SURFACE_1D | SVGA3D_SURFACE_ARRAY;
 388             break;
 389          case PIPE_TEXTURE_2D_ARRAY:
 390             flags |= SVGA3D_SURFACE_ARRAY;
 391             break;
 392          case PIPE_TEXTURE_3D:
 393             flags |= SVGA3D_SURFACE_VOLUME;
 394             break;
 395          case PIPE_TEXTURE_CUBE:
 396             if (nlayers == 6)
 397                flags |= SVGA3D_SURFACE_CUBEMAP;
 398             break;
 399          case PIPE_TEXTURE_CUBE_ARRAY:
 400             if (nlayers % 6 == 0)
 401                flags |= SVGA3D_SURFACE_CUBEMAP | SVGA3D_SURFACE_ARRAY;
 402             break;
 403          default:
 404             break;
 405          }
 406       }
 407
 408       /* When we clone the surface view resource, use the format used in
 409        * the creation of the original resource.
 410        */
 411       s->handle = svga_texture_view_surface(svga, tex, bind, flags,
 412                                             tex->key.format,
 413                                             surf_tmpl->u.tex.level, 1,
 414                                             layer, nlayers, zslice,
 415                                             TRUE, &s->key);
 416       if (!s->handle) {
 417          FREE(s);
 418          goto done;
 419       }
 420
 421       s->key.format = format;
 422       s->real_layer = 0;
 423       s->real_level = 0;
 424       s->real_zslice = 0;
 425    } else {
 426       SVGA_DBG(DEBUG_VIEWS,
 427                "New surface view: resource %p, level %u, layer %u, z %u, %p\n",
 428                pt, surf_tmpl->u.tex.level, layer, zslice, s);
 429
 430       memset(&s->key, 0, sizeof s->key);
 431       s->key.format = format;
 432       s->handle = tex->handle;
 433       s->real_layer = layer;
 434       s->real_zslice = zslice;
 435       s->real_level = surf_tmpl->u.tex.level;
 436    }
 437
 438    svga->hud.num_surface_views++;
 439    retVal = &s->base;
 440
 441 done:
 442    SVGA_STATS_TIME_POP(ss->sws);
 443    return retVal;
 444 }
 445
 446
 447 static struct pipe_surface *
 448 svga_create_surface(struct pipe_context *pipe,
 449                     struct pipe_resource *pt,
 450                     const struct pipe_surface *surf_tmpl)
 451 {
 452    struct svga_context *svga = svga_context(pipe);
 453    struct pipe_screen *screen = pipe->screen;
 454    struct pipe_surface *surf = NULL;
 455    boolean view = FALSE;
 456
 457    SVGA_STATS_TIME_PUSH(svga_sws(svga), SVGA_STATS_TIME_CREATESURFACE);
 458
 459    if (svga_screen(screen)->debug.force_surface_view)
 460       view = TRUE;
 461
 462    if (surf_tmpl->u.tex.level != 0 &&
 463        svga_screen(screen)->debug.force_level_surface_view)
 464       view = TRUE;
 465
 466    if (pt->target == PIPE_TEXTURE_3D)
 467       view = TRUE;
 468
 469    if (svga_have_vgpu10(svga) || svga_screen(screen)->debug.no_surface_view)
 470       view = FALSE;
 471
 472    surf = svga_create_surface_view(pipe, pt, surf_tmpl, view);
 473
 474    SVGA_STATS_TIME_POP(svga_sws(svga));
 475
 476    return surf;
 477 }
 478
 479
 480 /**
 481  * Clone the surface view and its associated resource.
 482  */
 483 static struct svga_surface *
 484 create_backed_surface_view(struct svga_context *svga, struct svga_surface *s)
 485 {
 486    struct svga_texture *tex = svga_texture(s->base.texture);
 487
 488    if (!s->backed) {
 489       struct pipe_surface *backed_view;
 490
 491       SVGA_STATS_TIME_PUSH(svga_sws(svga),
 492                            SVGA_STATS_TIME_CREATEBACKEDSURFACEVIEW);
 493
 494       backed_view = svga_create_surface_view(&svga->pipe,
 495                                              &tex->b.b,
 496                                              &s->base,
 497                                              TRUE);
 498       if (!backed_view)
 499          goto done;
 500
 501       s->backed = svga_surface(backed_view);
 502
 503       SVGA_STATS_TIME_POP(svga_sws(svga));
 504    }
 505    else if (s->backed->age < tex->age) {
 506       /*
 507        * There is already an existing backing surface, but we still need to
 508        * sync the backing resource if the original resource has been modified
 509        * since the last copy.
 510        */
 511       struct svga_surface *bs = s->backed;
 512       unsigned int layer, zslice;
 513
 514       assert(bs->handle);
 515
 516       switch (tex->b.b.target) {
 517       case PIPE_TEXTURE_CUBE:
 518       case PIPE_TEXTURE_CUBE_ARRAY:
 519       case PIPE_TEXTURE_1D_ARRAY:
 520       case PIPE_TEXTURE_2D_ARRAY:
 521          layer = s->base.u.tex.first_layer;
 522          zslice = 0;
 523          break;
 524       default:
 525          layer = 0;
 526          zslice = s->base.u.tex.first_layer;
 527       }
 528
 529       svga_texture_copy_handle_resource(svga, tex, bs->handle,
 530                                         bs->key.numMipLevels,
 531                                         bs->key.numFaces * bs->key.arraySize,
 532                                         zslice, s->base.u.tex.level, layer);
 533    }
 534
 535    svga_mark_surface_dirty(&s->backed->base);
 536    s->backed->age = tex->age;
 537
 538 done:
 539    return s->backed;
 540 }
 541
 542 /**
 543  * Create a DX RenderTarget/DepthStencil View for the given surface,
 544  * if needed.
 545  */
 546 struct pipe_surface *
 547 svga_validate_surface_view(struct svga_context *svga, struct svga_surface *s)
 548 {
 549    enum pipe_error ret = PIPE_OK;
 550    enum pipe_shader_type shader;
 551
 552    assert(svga_have_vgpu10(svga));
 553    assert(s);
 554
 555    SVGA_STATS_TIME_PUSH(svga_sws(svga),
 556                         SVGA_STATS_TIME_VALIDATESURFACEVIEW);
 557
 558    /**
 559     * DX spec explicitly specifies that no resource can be bound to a render
 560     * target view and a shader resource view simultanously.
 561     * So first check if the resource bound to this surface view collides with
 562     * a sampler view. If so, then we will clone this surface view and its
 563     * associated resource. We will then use the cloned surface view for
 564     * render target.
 565     */
 566    for (shader = PIPE_SHADER_VERTEX; shader <= PIPE_SHADER_GEOMETRY; shader++) {
 567       if (svga_check_sampler_view_resource_collision(svga, s->handle, shader)) {
 568          SVGA_DBG(DEBUG_VIEWS,
 569                   "same resource used in shaderResource and renderTarget 0x%x\n",
 570                   s->handle);
 571          s = create_backed_surface_view(svga, s);
 572
 573          if (s)
 574             svga->state.hw_draw.has_backed_views = TRUE;
 575
 576          /* s may be null here if the function failed */
 577          break;
 578       }
 579    }
 580
 581    if (s && s->view_id == SVGA3D_INVALID_ID) {
 582       SVGA3dResourceType resType;
 583       SVGA3dRenderTargetViewDesc desc;
 584       struct svga_texture *stex = svga_texture(s->base.texture);
 585
 586       if (stex->validated == FALSE) {
 587          assert(stex->handle);
 588
 589          /* We are about to render into a surface that has not been validated.
 590           * First invalidate the surface so that the device does not
 591           * need to update the host-side copy with the invalid
 592           * content when the associated mob is first bound to the surface.
 593           */
 594          if (SVGA3D_InvalidateGBSurface(svga->swc, stex->handle) != PIPE_OK) {
 595             svga_context_flush(svga, NULL);
 596             ret = SVGA3D_InvalidateGBSurface(svga->swc, stex->handle);
 597             assert(ret == PIPE_OK);
 598          }
 599          stex->validated = TRUE;
 600       }
 601
 602       desc.tex.mipSlice = s->real_level;
 603       desc.tex.firstArraySlice = s->real_layer + s->real_zslice;
 604       desc.tex.arraySize =
 605          s->base.u.tex.last_layer - s->base.u.tex.first_layer + 1;
 606
 607       s->view_id = util_bitmask_add(svga->surface_view_id_bm);
 608
 609       resType = svga_resource_type(s->base.texture->target);
 610
 611       if (util_format_is_depth_or_stencil(s->base.format)) {
 612          ret = SVGA3D_vgpu10_DefineDepthStencilView(svga->swc,
 613                                                     s->view_id,
 614                                                     s->handle,
 615                                                     s->key.format,
 616                                                     resType,
 617                                                     &desc);
 618       }
 619       else {
 620          SVGA3dSurfaceFormat view_format = s->key.format;
 621          const struct svga_texture *stex = svga_texture(s->base.texture);
 622
 623          /* Can't create RGBA render target view of a RGBX surface so adjust
 624           * the view format.  We do something similar for texture samplers in
 625           * svga_validate_pipe_sampler_view().
 626           */
 627          if (view_format == SVGA3D_B8G8R8A8_UNORM &&
 628              (stex->key.format == SVGA3D_B8G8R8X8_UNORM ||
 629               stex->key.format == SVGA3D_B8G8R8X8_TYPELESS)) {
 630             view_format = SVGA3D_B8G8R8X8_UNORM;
 631          }
 632
 633          ret = SVGA3D_vgpu10_DefineRenderTargetView(svga->swc,
 634                                                     s->view_id,
 635                                                     s->handle,
 636                                                     view_format,
 637                                                     resType,
 638                                                     &desc);
 639       }
 640
 641       if (ret != PIPE_OK) {
 642          util_bitmask_clear(svga->surface_view_id_bm, s->view_id);
 643          s->view_id = SVGA3D_INVALID_ID;
 644          s = NULL;
 645       }
 646    }
 647
 648    SVGA_STATS_TIME_POP(svga_sws(svga));
 649
 650    return s ? &s->base : NULL;
 651 }
 652
 653
 654
 655 static void
 656 svga_surface_destroy(struct pipe_context *pipe,
 657                      struct pipe_surface *surf)
 658 {
 659    struct svga_context *svga = svga_context(pipe);
 660    struct svga_surface *s = svga_surface(surf);
 661    struct svga_texture *t = svga_texture(surf->texture);
 662    struct svga_screen *ss = svga_screen(surf->texture->screen);
 663    enum pipe_error ret = PIPE_OK;
 664
 665    SVGA_STATS_TIME_PUSH(ss->sws, SVGA_STATS_TIME_DESTROYSURFACE);
 666
 667    /* Destroy the backed view surface if it exists */
 668    if (s->backed) {
 669       svga_surface_destroy(pipe, &s->backed->base);
 670       s->backed = NULL;
 671    }
 672
 673    /* Destroy the surface handle if this is a backed handle and
 674     * it is not being cached in the texture.
 675     */
 676    if (s->handle != t->handle && s->handle != t->backed_handle) {
 677       SVGA_DBG(DEBUG_DMA, "unref sid %p (tex surface)\n", s->handle);
 678       svga_screen_surface_destroy(ss, &s->key, &s->handle);
 679    }
 680
 681    if (s->view_id != SVGA3D_INVALID_ID) {
 682       unsigned try;
 683
 684       /* The SVGA3D device will generate a device error if the
 685        * render target view or depth stencil view is destroyed from
 686        * a context other than the one it was created with.
 687        * Similar to shader resource view, in this case, we will skip
 688        * the destroy for now.
 689        */
 690       if (surf->context != pipe) {
 691          _debug_printf("context mismatch in %s\n", __func__);
 692       }
 693       else {
 694          assert(svga_have_vgpu10(svga));
 695          for (try = 0; try < 2; try++) {
 696             if (util_format_is_depth_or_stencil(s->base.format)) {
 697                ret = SVGA3D_vgpu10_DestroyDepthStencilView(svga->swc, s->view_id);
 698             }
 699             else {
 700                ret = SVGA3D_vgpu10_DestroyRenderTargetView(svga->swc, s->view_id);
 701             }
 702             if (ret == PIPE_OK)
 703                break;
 704             svga_context_flush(svga, NULL);
 705          }
 706          assert(ret == PIPE_OK);
 707          util_bitmask_clear(svga->surface_view_id_bm, s->view_id);
 708       }
 709    }
 710
 711    pipe_resource_reference(&surf->texture, NULL);
 712    FREE(surf);
 713
 714    svga->hud.num_surface_views--;
 715    SVGA_STATS_TIME_POP(ss->sws);
 716 }
 717
 718
 719 static void
 720 svga_mark_surface_dirty(struct pipe_surface *surf)
 721 {
 722    struct svga_surface *s = svga_surface(surf);
 723    struct svga_texture *tex = svga_texture(surf->texture);
 724
 725    if (!s->dirty) {
 726       s->dirty = TRUE;
 727
 728       if (s->handle == tex->handle) {
 729          /* hmm so 3d textures always have all their slices marked ? */
 730          svga_define_texture_level(tex, surf->u.tex.first_layer,
 731                                    surf->u.tex.level);
 732       }
 733       else {
 734          /* this will happen later in svga_propagate_surface */
 735       }
 736    }
 737
 738    /* Increment the view_age and texture age for this surface's mipmap
 739     * level so that any sampler views into the texture are re-validated too.
 740     * Note: we age the texture for backed surface view only when the
 741     *       backed surface is propagated to the original surface.
 742     */
 743    if (s->handle == tex->handle)
 744       svga_age_texture_view(tex, surf->u.tex.level);
 745 }
 746
 747
 748 void
 749 svga_mark_surfaces_dirty(struct svga_context *svga)
 750 {
 751    unsigned i;
 752    struct svga_hw_clear_state *hw = &svga->state.hw_clear;
 753
 754    if (svga_have_vgpu10(svga)) {
 755
 756       /* For VGPU10, mark the dirty bit in the rendertarget/depth stencil view surface.
 757        * This surface can be the backed surface.
 758        */
 759       for (i = 0; i < hw->num_rendertargets; i++) {
 760          if (hw->rtv[i])
 761             svga_mark_surface_dirty(hw->rtv[i]);
 762       }
 763       if (hw->dsv)
 764          svga_mark_surface_dirty(hw->dsv);
 765    } else {
 766       for (i = 0; i < svga->curr.framebuffer.nr_cbufs; i++) {
 767          if (svga->curr.framebuffer.cbufs[i])
 768             svga_mark_surface_dirty(svga->curr.framebuffer.cbufs[i]);
 769       }
 770       if (svga->curr.framebuffer.zsbuf)
 771          svga_mark_surface_dirty(svga->curr.framebuffer.zsbuf);
 772    }
 773 }
 774
 775
 776 /**
 777  * Progagate any changes from surfaces to texture.
 778  * pipe is optional context to inline the blit command in.
 779  */
 780 void
 781 svga_propagate_surface(struct svga_context *svga, struct pipe_surface *surf,
 782                        boolean reset)
 783 {
 784    struct svga_surface *s = svga_surface(surf);
 785    struct svga_texture *tex = svga_texture(surf->texture);
 786    struct svga_screen *ss = svga_screen(surf->texture->screen);
 787
 788    if (!s->dirty)
 789       return;
 790
 791    SVGA_STATS_TIME_PUSH(ss->sws, SVGA_STATS_TIME_PROPAGATESURFACE);
 792
 793    /* Reset the dirty flag if specified. This is to ensure that
 794     * the dirty flag will not be reset and stay unset when the backing
 795     * surface is still being bound and rendered to.
 796     * The reset flag will be set to TRUE when the surface is propagated
 797     * and will be unbound.
 798     */
 799    s->dirty = !reset;
 800
 801    ss->texture_timestamp++;
 802    svga_age_texture_view(tex, surf->u.tex.level);
 803
 804    if (s->handle != tex->handle) {
 805       unsigned zslice, layer;
 806       unsigned nlayers = 1;
 807       unsigned i;
 808       unsigned numMipLevels = tex->b.b.last_level + 1;
 809       unsigned srcLevel = s->real_level;
 810       unsigned dstLevel = surf->u.tex.level;
 811       unsigned width = u_minify(tex->b.b.width0, dstLevel);
 812       unsigned height = u_minify(tex->b.b.height0, dstLevel);
 813
 814       if (surf->texture->target == PIPE_TEXTURE_CUBE) {
 815          zslice = 0;
 816          layer = surf->u.tex.first_layer;
 817       }
 818       else if (surf->texture->target == PIPE_TEXTURE_1D_ARRAY ||
 819                surf->texture->target == PIPE_TEXTURE_2D_ARRAY ||
 820                surf->texture->target == PIPE_TEXTURE_CUBE_ARRAY) {
 821          zslice = 0;
 822          layer = surf->u.tex.first_layer;
 823          nlayers = surf->u.tex.last_layer - surf->u.tex.first_layer + 1;
 824       }
 825       else {
 826          zslice = surf->u.tex.first_layer;
 827          layer = 0;
 828       }
 829
 830       SVGA_DBG(DEBUG_VIEWS,
 831                "Propagate surface %p to resource %p, level %u\n",
 832                surf, tex, surf->u.tex.level);
 833
 834       if (svga_have_vgpu10(svga)) {
 835          unsigned srcSubResource, dstSubResource;
 836
 837          for (i = 0; i < nlayers; i++) {
 838             srcSubResource = (s->real_layer + i) * numMipLevels + srcLevel;
 839             dstSubResource = (layer + i) * numMipLevels + dstLevel;
 840
 841             svga_texture_copy_region(svga,
 842                                      s->handle, srcSubResource, 0, 0, 0,
 843                                      tex->handle, dstSubResource, 0, 0, zslice,
 844                                      width, height, 1);
 845             svga_define_texture_level(tex, layer + i, dstLevel);
 846          }
 847       }
 848       else {
 849          for (i = 0; i < nlayers; i++) {
 850             svga_texture_copy_handle(svga,
 851                                      s->handle, 0, 0, 0, srcLevel,
 852                                      s->real_layer + i,
 853                                      tex->handle, 0, 0, zslice, dstLevel,
 854                                      layer + i,
 855                                      width, height, 1);
 856
 857             svga_define_texture_level(tex, layer + i, dstLevel);
 858          }
 859       }
 860
 861       /* Sync the surface view age with the texture age */
 862       s->age = tex->age;
 863
 864       /* If this backed surface is cached in the texture,
 865        * update the backed age as well.
 866        */
 867       if (tex->backed_handle == s->handle) {
 868          tex->backed_age = tex->age;
 869       }
 870    }
 871
 872    SVGA_STATS_TIME_POP(ss->sws);
 873 }
 874
 875
 876 /**
 877  * If any of the render targets are in backing texture views, propagate any
 878  * changes to them back to the original texture.
 879  */
 880 void
 881 svga_propagate_rendertargets(struct svga_context *svga)
 882 {
 883    unsigned i;
 884
 885    /* Early exit if there is no backing texture views in use */
 886    if (!svga->state.hw_draw.has_backed_views)
 887       return;
 888
 889    /* Note that we examine the svga->state.hw_draw.framebuffer surfaces,
 890     * not the svga->curr.framebuffer surfaces, because it's the former
 891     * surfaces which may be backing surface views (the actual render targets).
 892     */
 893    for (i = 0; i < svga->state.hw_clear.num_rendertargets; i++) {
 894       struct pipe_surface *s = svga->state.hw_clear.rtv[i];
 895       if (s) {
 896          svga_propagate_surface(svga, s, FALSE);
 897       }
 898    }
 899
 900    if (svga->state.hw_clear.dsv) {
 901       svga_propagate_surface(svga, svga->state.hw_clear.dsv, FALSE);
 902    }
 903 }
 904
 905
 906 /**
 907  * Check if we should call svga_propagate_surface on the surface.
 908  */
 909 boolean
 910 svga_surface_needs_propagation(const struct pipe_surface *surf)
 911 {
 912    const struct svga_surface *s = svga_surface_const(surf);
 913    struct svga_texture *tex = svga_texture(surf->texture);
 914
 915    return s->dirty && s->handle != tex->handle;
 916 }
 917
 918
 919 static void
 920 svga_get_sample_position(struct pipe_context *context,
 921                          unsigned sample_count, unsigned sample_index,
 922                          float *pos_out)
 923 {
 924    /* We can't actually query the device to learn the sample positions.
 925     * These were grabbed from nvidia's driver.
 926     */
 927    static const float pos1[1][2] = {
 928       { 0.5, 0.5 }
 929    };
 930    static const float pos2[2][2] = {
 931       { 0.75, 0.75 },
 932       { 0.25, 0.25 }
 933    };
 934    static const float pos4[4][2] = {
 935       { 0.375000, 0.125000 },
 936       { 0.875000, 0.375000 },
 937       { 0.125000, 0.625000 },
 938       { 0.625000, 0.875000 }
 939    };
 940    static const float pos8[8][2] = {
 941       { 0.562500, 0.312500 },
 942       { 0.437500, 0.687500 },
 943       { 0.812500, 0.562500 },
 944       { 0.312500, 0.187500 },
 945       { 0.187500, 0.812500 },
 946       { 0.062500, 0.437500 },
 947       { 0.687500, 0.937500 },
 948       { 0.937500, 0.062500 }
 949    };
 950    static const float pos16[16][2] = {
 951       { 0.187500, 0.062500 },
 952       { 0.437500, 0.187500 },
 953       { 0.062500, 0.312500 },
 954       { 0.312500, 0.437500 },
 955       { 0.687500, 0.062500 },
 956       { 0.937500, 0.187500 },
 957       { 0.562500, 0.312500 },
 958       { 0.812500, 0.437500 },
 959       { 0.187500, 0.562500 },
 960       { 0.437500, 0.687500 },
 961       { 0.062500, 0.812500 },
 962       { 0.312500, 0.937500 },
 963       { 0.687500, 0.562500 },
 964       { 0.937500, 0.687500 },
 965       { 0.562500, 0.812500 },
 966       { 0.812500, 0.937500 }
 967    };
 968    const float (*positions)[2];
 969
 970    switch (sample_count) {
 971    case 2:
 972       positions = pos2;
 973       break;
 974    case 4:
 975       positions = pos4;
 976       break;
 977    case 8:
 978       positions = pos8;
 979       break;
 980    case 16:
 981       positions = pos16;
 982       break;
 983    default:
 984       positions = pos1;
 985    }
 986
 987    pos_out[0] = positions[sample_index][0];
 988    pos_out[1] = positions[sample_index][1];
 989 }
 990
 991
 992 void
 993 svga_init_surface_functions(struct svga_context *svga)
 994 {
 995    svga->pipe.create_surface = svga_create_surface;
 996    svga->pipe.surface_destroy = svga_surface_destroy;
 997    svga->pipe.get_sample_position = svga_get_sample_position;
 998 }