src/gallium/drivers/failover/fo_state.c

   1 /**************************************************************************
   2  *
   3  * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
   4  * All Rights Reserved.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the
   8  * "Software"), to deal in the Software without restriction, including
   9  * without limitation the rights to use, copy, modify, merge, publish,
  10  * distribute, sub license, and/or sell copies of the Software, and to
  11  * permit persons to whom the Software is furnished to do so, subject to
  12  * the following conditions:
  13  *
  14  * The above copyright notice and this permission notice (including the
  15  * next paragraph) shall be included in all copies or substantial portions
  16  * of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  19  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  20  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  21  * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
  22  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  23  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  24  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  *
  26  **************************************************************************/
  27
  28 /* Authors:  Keith Whitwell <keith@tungstengraphics.com>
  29  */
  30
  31 #include "util/u_inlines.h"
  32
  33 #include "fo_context.h"
  34
  35
  36 /* This looks like a lot of work at the moment - we're keeping a
  37  * duplicate copy of the state up-to-date.
  38  *
  39  * This can change in two ways:
  40  * - With constant state objects we would only need to save a pointer,
  41  *     not the whole object.
  42  * - By adding a callback in the state tracker to re-emit state.  The
  43  *     state tracker knows the current state already and can re-emit it
  44  *     without additional complexity.
  45  *
  46  * This works as a proof-of-concept, but a final version will have
  47  * lower overheads.
  48  */
  49
  50
  51
  52 static void *
  53 failover_create_blend_state( struct pipe_context *pipe,
  54                              const struct pipe_blend_state *blend )
  55 {
  56    struct fo_state *state = malloc(sizeof(struct fo_state));
  57    struct failover_context *failover = failover_context(pipe);
  58
  59    state->sw_state = failover->sw->create_blend_state(failover->sw, blend);
  60    state->hw_state = failover->hw->create_blend_state(failover->hw, blend);
  61
  62    return state;
  63 }
  64
  65 static void
  66 failover_bind_blend_state( struct pipe_context *pipe,
  67                            void *blend )
  68 {
  69    struct failover_context *failover = failover_context(pipe);
  70    struct fo_state *state = (struct fo_state *)blend;
  71    failover->blend = state;
  72    failover->dirty |= FO_NEW_BLEND;
  73    failover->sw->bind_blend_state( failover->sw, state->sw_state );
  74    failover->hw->bind_blend_state( failover->hw, state->hw_state );
  75 }
  76
  77 static void
  78 failover_delete_blend_state( struct pipe_context *pipe,
  79                              void *blend )
  80 {
  81    struct fo_state *state = (struct fo_state*)blend;
  82    struct failover_context *failover = failover_context(pipe);
  83
  84    failover->sw->delete_blend_state(failover->sw, state->sw_state);
  85    failover->hw->delete_blend_state(failover->hw, state->hw_state);
  86    state->sw_state = 0;
  87    state->hw_state = 0;
  88    free(state);
  89 }
  90
  91 static void
  92 failover_set_blend_color( struct pipe_context *pipe,
  93                           const struct pipe_blend_color *blend_color )
  94 {
  95    struct failover_context *failover = failover_context(pipe);
  96
  97    failover->blend_color = *blend_color;
  98    failover->dirty |= FO_NEW_BLEND_COLOR;
  99    failover->sw->set_blend_color( failover->sw, blend_color );
 100    failover->hw->set_blend_color( failover->hw, blend_color );
 101 }
 102
 103 static void
 104 failover_set_stencil_ref( struct pipe_context *pipe,
 105                           const struct pipe_stencil_ref *stencil_ref )
 106 {
 107    struct failover_context *failover = failover_context(pipe);
 108
 109    failover->stencil_ref = *stencil_ref;
 110    failover->dirty |= FO_NEW_STENCIL_REF;
 111    failover->sw->set_stencil_ref( failover->sw, stencil_ref );
 112    failover->hw->set_stencil_ref( failover->hw, stencil_ref );
 113 }
 114
 115 static void
 116 failover_set_clip_state( struct pipe_context *pipe,
 117                          const struct pipe_clip_state *clip )
 118 {
 119    struct failover_context *failover = failover_context(pipe);
 120
 121    failover->clip = *clip;
 122    failover->dirty |= FO_NEW_CLIP;
 123    failover->sw->set_clip_state( failover->sw, clip );
 124    failover->hw->set_clip_state( failover->hw, clip );
 125 }
 126
 127
 128 static void *
 129 failover_create_depth_stencil_state(struct pipe_context *pipe,
 130                               const struct pipe_depth_stencil_alpha_state *templ)
 131 {
 132    struct fo_state *state = malloc(sizeof(struct fo_state));
 133    struct failover_context *failover = failover_context(pipe);
 134
 135    state->sw_state = failover->sw->create_depth_stencil_alpha_state(failover->sw, templ);
 136    state->hw_state = failover->hw->create_depth_stencil_alpha_state(failover->hw, templ);
 137
 138    return state;
 139 }
 140
 141 static void
 142 failover_bind_depth_stencil_state(struct pipe_context *pipe,
 143                                   void *depth_stencil)
 144 {
 145    struct failover_context *failover = failover_context(pipe);
 146    struct fo_state *state = (struct fo_state *)depth_stencil;
 147    failover->depth_stencil = state;
 148    failover->dirty |= FO_NEW_DEPTH_STENCIL;
 149    failover->sw->bind_depth_stencil_alpha_state(failover->sw, state->sw_state);
 150    failover->hw->bind_depth_stencil_alpha_state(failover->hw, state->hw_state);
 151 }
 152
 153 static void
 154 failover_delete_depth_stencil_state(struct pipe_context *pipe,
 155                                     void *ds)
 156 {
 157    struct fo_state *state = (struct fo_state*)ds;
 158    struct failover_context *failover = failover_context(pipe);
 159
 160    failover->sw->delete_depth_stencil_alpha_state(failover->sw, state->sw_state);
 161    failover->hw->delete_depth_stencil_alpha_state(failover->hw, state->hw_state);
 162    state->sw_state = 0;
 163    state->hw_state = 0;
 164    free(state);
 165 }
 166
 167 static void
 168 failover_set_framebuffer_state(struct pipe_context *pipe,
 169                                const struct pipe_framebuffer_state *framebuffer)
 170 {
 171    struct failover_context *failover = failover_context(pipe);
 172
 173    failover->framebuffer = *framebuffer;
 174    failover->dirty |= FO_NEW_FRAMEBUFFER;
 175    failover->sw->set_framebuffer_state( failover->sw, framebuffer );
 176    failover->hw->set_framebuffer_state( failover->hw, framebuffer );
 177 }
 178
 179
 180 static void *
 181 failover_create_fs_state(struct pipe_context *pipe,
 182                          const struct pipe_shader_state *templ)
 183 {
 184    struct fo_state *state = malloc(sizeof(struct fo_state));
 185    struct failover_context *failover = failover_context(pipe);
 186
 187    state->sw_state = failover->sw->create_fs_state(failover->sw, templ);
 188    state->hw_state = failover->hw->create_fs_state(failover->hw, templ);
 189
 190    return state;
 191 }
 192
 193 static void
 194 failover_bind_fs_state(struct pipe_context *pipe, void *fs)
 195 {
 196    struct failover_context *failover = failover_context(pipe);
 197    struct fo_state *state = (struct fo_state*)fs;
 198    failover->fragment_shader = state;
 199    failover->dirty |= FO_NEW_FRAGMENT_SHADER;
 200    failover->sw->bind_fs_state(failover->sw, state->sw_state);
 201    failover->hw->bind_fs_state(failover->hw, state->hw_state);
 202 }
 203
 204 static void
 205 failover_delete_fs_state(struct pipe_context *pipe,
 206                          void *fs)
 207 {
 208    struct fo_state *state = (struct fo_state*)fs;
 209    struct failover_context *failover = failover_context(pipe);
 210
 211    failover->sw->delete_fs_state(failover->sw, state->sw_state);
 212    failover->hw->delete_fs_state(failover->hw, state->hw_state);
 213    state->sw_state = 0;
 214    state->hw_state = 0;
 215    free(state);
 216 }
 217
 218 static void *
 219 failover_create_vs_state(struct pipe_context *pipe,
 220                          const struct pipe_shader_state *templ)
 221 {
 222    struct fo_state *state = malloc(sizeof(struct fo_state));
 223    struct failover_context *failover = failover_context(pipe);
 224
 225    state->sw_state = failover->sw->create_vs_state(failover->sw, templ);
 226    state->hw_state = failover->hw->create_vs_state(failover->hw, templ);
 227
 228    return state;
 229 }
 230
 231 static void
 232 failover_bind_vs_state(struct pipe_context *pipe,
 233                        void *vs)
 234 {
 235    struct failover_context *failover = failover_context(pipe);
 236
 237    struct fo_state *state = (struct fo_state*)vs;
 238    failover->vertex_shader = state;
 239    failover->dirty |= FO_NEW_VERTEX_SHADER;
 240    failover->sw->bind_vs_state(failover->sw, state->sw_state);
 241    failover->hw->bind_vs_state(failover->hw, state->hw_state);
 242 }
 243
 244 static void
 245 failover_delete_vs_state(struct pipe_context *pipe,
 246                          void *vs)
 247 {
 248    struct fo_state *state = (struct fo_state*)vs;
 249    struct failover_context *failover = failover_context(pipe);
 250
 251    failover->sw->delete_vs_state(failover->sw, state->sw_state);
 252    failover->hw->delete_vs_state(failover->hw, state->hw_state);
 253    state->sw_state = 0;
 254    state->hw_state = 0;
 255    free(state);
 256 }
 257
 258
 259
 260 static void *
 261 failover_create_vertex_elements_state( struct pipe_context *pipe,
 262                                        unsigned count,
 263                                        const struct pipe_vertex_element *velems )
 264 {
 265    struct fo_state *state = malloc(sizeof(struct fo_state));
 266    struct failover_context *failover = failover_context(pipe);
 267
 268    state->sw_state = failover->sw->create_vertex_elements_state(failover->sw, count, velems);
 269    state->hw_state = failover->hw->create_vertex_elements_state(failover->hw, count, velems);
 270
 271    return state;
 272 }
 273
 274 static void
 275 failover_bind_vertex_elements_state(struct pipe_context *pipe,
 276                                     void *velems )
 277 {
 278    struct failover_context *failover = failover_context(pipe);
 279    struct fo_state *state = (struct fo_state*)velems;
 280
 281    failover->vertex_elements = state;
 282    failover->dirty |= FO_NEW_VERTEX_ELEMENT;
 283    failover->sw->bind_vertex_elements_state( failover->sw, velems );
 284    failover->hw->bind_vertex_elements_state( failover->hw, velems );
 285 }
 286
 287 static void
 288 failover_delete_vertex_elements_state( struct pipe_context *pipe,
 289                                        void *velems )
 290 {
 291    struct fo_state *state = (struct fo_state*)velems;
 292    struct failover_context *failover = failover_context(pipe);
 293
 294    failover->sw->delete_vertex_elements_state(failover->sw, state->sw_state);
 295    failover->hw->delete_vertex_elements_state(failover->hw, state->hw_state);
 296    state->sw_state = 0;
 297    state->hw_state = 0;
 298    free(state);
 299 }
 300
 301 static void
 302 failover_set_polygon_stipple( struct pipe_context *pipe,
 303                               const struct pipe_poly_stipple *stipple )
 304 {
 305    struct failover_context *failover = failover_context(pipe);
 306
 307    failover->poly_stipple = *stipple;
 308    failover->dirty |= FO_NEW_STIPPLE;
 309    failover->sw->set_polygon_stipple( failover->sw, stipple );
 310    failover->hw->set_polygon_stipple( failover->hw, stipple );
 311 }
 312
 313
 314 static void *
 315 failover_create_rasterizer_state(struct pipe_context *pipe,
 316                                  const struct pipe_rasterizer_state *templ)
 317 {
 318    struct fo_state *state = malloc(sizeof(struct fo_state));
 319    struct failover_context *failover = failover_context(pipe);
 320
 321    state->sw_state = failover->sw->create_rasterizer_state(failover->sw, templ);
 322    state->hw_state = failover->hw->create_rasterizer_state(failover->hw, templ);
 323
 324    return state;
 325 }
 326
 327 static void
 328 failover_bind_rasterizer_state(struct pipe_context *pipe,
 329                                void *raster)
 330 {
 331    struct failover_context *failover = failover_context(pipe);
 332
 333    struct fo_state *state = (struct fo_state*)raster;
 334    failover->rasterizer = state;
 335    failover->dirty |= FO_NEW_RASTERIZER;
 336    failover->sw->bind_rasterizer_state(failover->sw, state->sw_state);
 337    failover->hw->bind_rasterizer_state(failover->hw, state->hw_state);
 338 }
 339
 340 static void
 341 failover_delete_rasterizer_state(struct pipe_context *pipe,
 342                                  void *raster)
 343 {
 344    struct fo_state *state = (struct fo_state*)raster;
 345    struct failover_context *failover = failover_context(pipe);
 346
 347    failover->sw->delete_rasterizer_state(failover->sw, state->sw_state);
 348    failover->hw->delete_rasterizer_state(failover->hw, state->hw_state);
 349    state->sw_state = 0;
 350    state->hw_state = 0;
 351    free(state);
 352 }
 353
 354
 355 static void
 356 failover_set_scissor_state( struct pipe_context *pipe,
 357                                  const struct pipe_scissor_state *scissor )
 358 {
 359    struct failover_context *failover = failover_context(pipe);
 360
 361    failover->scissor = *scissor;
 362    failover->dirty |= FO_NEW_SCISSOR;
 363    failover->sw->set_scissor_state( failover->sw, scissor );
 364    failover->hw->set_scissor_state( failover->hw, scissor );
 365 }
 366
 367
 368 static void *
 369 failover_create_sampler_state(struct pipe_context *pipe,
 370                               const struct pipe_sampler_state *templ)
 371 {
 372    struct fo_state *state = malloc(sizeof(struct fo_state));
 373    struct failover_context *failover = failover_context(pipe);
 374
 375    state->sw_state = failover->sw->create_sampler_state(failover->sw, templ);
 376    state->hw_state = failover->hw->create_sampler_state(failover->hw, templ);
 377
 378    return state;
 379 }
 380
 381 static void
 382 failover_bind_fragment_sampler_states(struct pipe_context *pipe,
 383                                       unsigned num,
 384                                       void **sampler)
 385 {
 386    struct failover_context *failover = failover_context(pipe);
 387    struct fo_state *state = (struct fo_state*)sampler;
 388    uint i;
 389    assert(num <= PIPE_MAX_SAMPLERS);
 390    /* Check for no-op */
 391    if (num == failover->num_samplers &&
 392        !memcmp(failover->sampler, sampler, num * sizeof(void *)))
 393       return;
 394    for (i = 0; i < PIPE_MAX_SAMPLERS; i++) {
 395       failover->sw_sampler_state[i] = i < num ? state[i].sw_state : NULL;
 396       failover->hw_sampler_state[i] = i < num ? state[i].hw_state : NULL;
 397    }
 398    failover->dirty |= FO_NEW_SAMPLER;
 399    failover->num_samplers = num;
 400    failover->sw->bind_fragment_sampler_states(failover->sw, num,
 401                                               failover->sw_sampler_state);
 402    failover->hw->bind_fragment_sampler_states(failover->hw, num,
 403                                               failover->hw_sampler_state);
 404 }
 405
 406 static void
 407 failover_bind_vertex_sampler_states(struct pipe_context *pipe,
 408                                     unsigned num_samplers,
 409                                     void **samplers)
 410 {
 411    struct failover_context *failover = failover_context(pipe);
 412    struct fo_state *state = (struct fo_state*)samplers;
 413    uint i;
 414
 415    assert(num_samplers <= PIPE_MAX_VERTEX_SAMPLERS);
 416
 417    /* Check for no-op */
 418    if (num_samplers == failover->num_vertex_samplers &&
 419        !memcmp(failover->vertex_samplers, samplers, num_samplers * sizeof(void *))) {
 420       return;
 421    }
 422    for (i = 0; i < PIPE_MAX_VERTEX_SAMPLERS; i++) {
 423       failover->sw_vertex_sampler_state[i] = i < num_samplers ? state[i].sw_state : NULL;
 424       failover->hw_vertex_sampler_state[i] = i < num_samplers ? state[i].hw_state : NULL;
 425    }
 426    failover->dirty |= FO_NEW_SAMPLER;
 427    failover->num_vertex_samplers = num_samplers;
 428    failover->sw->bind_vertex_sampler_states(failover->sw,
 429                                             num_samplers,
 430                                             failover->sw_vertex_sampler_state);
 431    failover->hw->bind_vertex_sampler_states(failover->hw,
 432                                             num_samplers,
 433                                             failover->hw_vertex_sampler_state);
 434 }
 435
 436 static void
 437 failover_delete_sampler_state(struct pipe_context *pipe, void *sampler)
 438 {
 439    struct fo_state *state = (struct fo_state*)sampler;
 440    struct failover_context *failover = failover_context(pipe);
 441
 442    failover->sw->delete_sampler_state(failover->sw, state->sw_state);
 443    failover->hw->delete_sampler_state(failover->hw, state->hw_state);
 444    state->sw_state = 0;
 445    state->hw_state = 0;
 446    free(state);
 447 }
 448
 449
 450 static void
 451 failover_set_fragment_sampler_textures(struct pipe_context *pipe,
 452                                        unsigned num,
 453                                        struct pipe_texture **texture)
 454 {
 455    struct failover_context *failover = failover_context(pipe);
 456    uint i;
 457
 458    assert(num <= PIPE_MAX_SAMPLERS);
 459
 460    /* Check for no-op */
 461    if (num == failover->num_textures &&
 462        !memcmp(failover->texture, texture, num * sizeof(struct pipe_texture *)))
 463       return;
 464    for (i = 0; i < num; i++)
 465       pipe_texture_reference((struct pipe_texture **) &failover->texture[i],
 466                              texture[i]);
 467    for (i = num; i < failover->num_textures; i++)
 468       pipe_texture_reference((struct pipe_texture **) &failover->texture[i],
 469                              NULL);
 470    failover->dirty |= FO_NEW_TEXTURE;
 471    failover->num_textures = num;
 472    failover->sw->set_fragment_sampler_textures( failover->sw, num, texture );
 473    failover->hw->set_fragment_sampler_textures( failover->hw, num, texture );
 474 }
 475
 476
 477 static void
 478 failover_set_vertex_sampler_textures(struct pipe_context *pipe,
 479                                      unsigned num_textures,
 480                                      struct pipe_texture **textures)
 481 {
 482    struct failover_context *failover = failover_context(pipe);
 483    uint i;
 484
 485    assert(num_textures <= PIPE_MAX_VERTEX_SAMPLERS);
 486
 487    /* Check for no-op */
 488    if (num_textures == failover->num_vertex_textures &&
 489        !memcmp(failover->vertex_textures, textures, num_textures * sizeof(struct pipe_texture *))) {
 490       return;
 491    }
 492    for (i = 0; i < num_textures; i++) {
 493       pipe_texture_reference((struct pipe_texture **)&failover->vertex_textures[i],
 494                              textures[i]);
 495    }
 496    for (i = num_textures; i < failover->num_vertex_textures; i++) {
 497       pipe_texture_reference((struct pipe_texture **)&failover->vertex_textures[i],
 498                              NULL);
 499    }
 500    failover->dirty |= FO_NEW_TEXTURE;
 501    failover->num_vertex_textures = num_textures;
 502    failover->sw->set_vertex_sampler_textures(failover->sw, num_textures, textures);
 503    failover->hw->set_vertex_sampler_textures(failover->hw, num_textures, textures);
 504 }
 505
 506
 507 static void
 508 failover_set_viewport_state( struct pipe_context *pipe,
 509                              const struct pipe_viewport_state *viewport )
 510 {
 511    struct failover_context *failover = failover_context(pipe);
 512
 513    failover->viewport = *viewport;
 514    failover->dirty |= FO_NEW_VIEWPORT;
 515    failover->sw->set_viewport_state( failover->sw, viewport );
 516    failover->hw->set_viewport_state( failover->hw, viewport );
 517 }
 518
 519
 520 static void
 521 failover_set_vertex_buffers(struct pipe_context *pipe,
 522                             unsigned count,
 523                             const struct pipe_vertex_buffer *vertex_buffers)
 524 {
 525    struct failover_context *failover = failover_context(pipe);
 526
 527    memcpy(failover->vertex_buffers, vertex_buffers,
 528           count * sizeof(vertex_buffers[0]));
 529    failover->dirty |= FO_NEW_VERTEX_BUFFER;
 530    failover->num_vertex_buffers = count;
 531    failover->sw->set_vertex_buffers( failover->sw, count, vertex_buffers );
 532    failover->hw->set_vertex_buffers( failover->hw, count, vertex_buffers );
 533 }
 534
 535
 536 void
 537 failover_set_constant_buffer(struct pipe_context *pipe,
 538                              uint shader, uint index,
 539                              struct pipe_buffer *buf)
 540 {
 541    struct failover_context *failover = failover_context(pipe);
 542
 543    assert(shader < PIPE_SHADER_TYPES);
 544    assert(index == 0);
 545
 546    failover->sw->set_constant_buffer(failover->sw, shader, index, buf);
 547    failover->hw->set_constant_buffer(failover->hw, shader, index, buf);
 548 }
 549
 550
 551 void
 552 failover_init_state_functions( struct failover_context *failover )
 553 {
 554    failover->pipe.create_blend_state = failover_create_blend_state;
 555    failover->pipe.bind_blend_state   = failover_bind_blend_state;
 556    failover->pipe.delete_blend_state = failover_delete_blend_state;
 557    failover->pipe.create_sampler_state = failover_create_sampler_state;
 558    failover->pipe.bind_fragment_sampler_states  = failover_bind_fragment_sampler_states;
 559    failover->pipe.bind_vertex_sampler_states  = failover_bind_vertex_sampler_states;
 560    failover->pipe.delete_sampler_state = failover_delete_sampler_state;
 561    failover->pipe.create_depth_stencil_alpha_state = failover_create_depth_stencil_state;
 562    failover->pipe.bind_depth_stencil_alpha_state   = failover_bind_depth_stencil_state;
 563    failover->pipe.delete_depth_stencil_alpha_state = failover_delete_depth_stencil_state;
 564    failover->pipe.create_rasterizer_state = failover_create_rasterizer_state;
 565    failover->pipe.bind_rasterizer_state = failover_bind_rasterizer_state;
 566    failover->pipe.delete_rasterizer_state = failover_delete_rasterizer_state;
 567    failover->pipe.create_fs_state = failover_create_fs_state;
 568    failover->pipe.bind_fs_state   = failover_bind_fs_state;
 569    failover->pipe.delete_fs_state = failover_delete_fs_state;
 570    failover->pipe.create_vs_state = failover_create_vs_state;
 571    failover->pipe.bind_vs_state   = failover_bind_vs_state;
 572    failover->pipe.delete_vs_state = failover_delete_vs_state;
 573    failover->pipe.create_vertex_elements_state = failover_create_vertex_elements_state;
 574    failover->pipe.bind_vertex_elements_state = failover_bind_vertex_elements_state;
 575    failover->pipe.delete_vertex_elements_state = failover_delete_vertex_elements_state;
 576
 577    failover->pipe.set_blend_color = failover_set_blend_color;
 578    failover->pipe.set_stencil_ref = failover_set_stencil_ref;
 579    failover->pipe.set_clip_state = failover_set_clip_state;
 580    failover->pipe.set_framebuffer_state = failover_set_framebuffer_state;
 581    failover->pipe.set_polygon_stipple = failover_set_polygon_stipple;
 582    failover->pipe.set_scissor_state = failover_set_scissor_state;
 583    failover->pipe.set_fragment_sampler_textures = failover_set_fragment_sampler_textures;
 584    failover->pipe.set_vertex_sampler_textures = failover_set_vertex_sampler_textures;
 585    failover->pipe.set_viewport_state = failover_set_viewport_state;
 586    failover->pipe.set_vertex_buffers = failover_set_vertex_buffers;
 587    failover->pipe.set_constant_buffer = failover_set_constant_buffer;
 588 }