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 static void
 259 failover_set_polygon_stipple( struct pipe_context *pipe,
 260                               const struct pipe_poly_stipple *stipple )
 261 {
 262    struct failover_context *failover = failover_context(pipe);
 263
 264    failover->poly_stipple = *stipple;
 265    failover->dirty |= FO_NEW_STIPPLE;
 266    failover->sw->set_polygon_stipple( failover->sw, stipple );
 267    failover->hw->set_polygon_stipple( failover->hw, stipple );
 268 }
 269
 270
 271 static void *
 272 failover_create_rasterizer_state(struct pipe_context *pipe,
 273                                  const struct pipe_rasterizer_state *templ)
 274 {
 275    struct fo_state *state = malloc(sizeof(struct fo_state));
 276    struct failover_context *failover = failover_context(pipe);
 277
 278    state->sw_state = failover->sw->create_rasterizer_state(failover->sw, templ);
 279    state->hw_state = failover->hw->create_rasterizer_state(failover->hw, templ);
 280
 281    return state;
 282 }
 283
 284 static void
 285 failover_bind_rasterizer_state(struct pipe_context *pipe,
 286                                void *raster)
 287 {
 288    struct failover_context *failover = failover_context(pipe);
 289
 290    struct fo_state *state = (struct fo_state*)raster;
 291    failover->rasterizer = state;
 292    failover->dirty |= FO_NEW_RASTERIZER;
 293    failover->sw->bind_rasterizer_state(failover->sw, state->sw_state);
 294    failover->hw->bind_rasterizer_state(failover->hw, state->hw_state);
 295 }
 296
 297 static void
 298 failover_delete_rasterizer_state(struct pipe_context *pipe,
 299                                  void *raster)
 300 {
 301    struct fo_state *state = (struct fo_state*)raster;
 302    struct failover_context *failover = failover_context(pipe);
 303
 304    failover->sw->delete_rasterizer_state(failover->sw, state->sw_state);
 305    failover->hw->delete_rasterizer_state(failover->hw, state->hw_state);
 306    state->sw_state = 0;
 307    state->hw_state = 0;
 308    free(state);
 309 }
 310
 311
 312 static void
 313 failover_set_scissor_state( struct pipe_context *pipe,
 314                                  const struct pipe_scissor_state *scissor )
 315 {
 316    struct failover_context *failover = failover_context(pipe);
 317
 318    failover->scissor = *scissor;
 319    failover->dirty |= FO_NEW_SCISSOR;
 320    failover->sw->set_scissor_state( failover->sw, scissor );
 321    failover->hw->set_scissor_state( failover->hw, scissor );
 322 }
 323
 324
 325 static void *
 326 failover_create_sampler_state(struct pipe_context *pipe,
 327                               const struct pipe_sampler_state *templ)
 328 {
 329    struct fo_state *state = malloc(sizeof(struct fo_state));
 330    struct failover_context *failover = failover_context(pipe);
 331
 332    state->sw_state = failover->sw->create_sampler_state(failover->sw, templ);
 333    state->hw_state = failover->hw->create_sampler_state(failover->hw, templ);
 334
 335    return state;
 336 }
 337
 338 static void
 339 failover_bind_fragment_sampler_states(struct pipe_context *pipe,
 340                                       unsigned num,
 341                                       void **sampler)
 342 {
 343    struct failover_context *failover = failover_context(pipe);
 344    struct fo_state *state = (struct fo_state*)sampler;
 345    uint i;
 346    assert(num <= PIPE_MAX_SAMPLERS);
 347    /* Check for no-op */
 348    if (num == failover->num_samplers &&
 349        !memcmp(failover->sampler, sampler, num * sizeof(void *)))
 350       return;
 351    for (i = 0; i < PIPE_MAX_SAMPLERS; i++) {
 352       failover->sw_sampler_state[i] = i < num ? state[i].sw_state : NULL;
 353       failover->hw_sampler_state[i] = i < num ? state[i].hw_state : NULL;
 354    }
 355    failover->dirty |= FO_NEW_SAMPLER;
 356    failover->num_samplers = num;
 357    failover->sw->bind_fragment_sampler_states(failover->sw, num,
 358                                               failover->sw_sampler_state);
 359    failover->hw->bind_fragment_sampler_states(failover->hw, num,
 360                                               failover->hw_sampler_state);
 361 }
 362
 363 static void
 364 failover_bind_vertex_sampler_states(struct pipe_context *pipe,
 365                                     unsigned num_samplers,
 366                                     void **samplers)
 367 {
 368    struct failover_context *failover = failover_context(pipe);
 369    struct fo_state *state = (struct fo_state*)samplers;
 370    uint i;
 371
 372    assert(num_samplers <= PIPE_MAX_VERTEX_SAMPLERS);
 373
 374    /* Check for no-op */
 375    if (num_samplers == failover->num_vertex_samplers &&
 376        !memcmp(failover->vertex_samplers, samplers, num_samplers * sizeof(void *))) {
 377       return;
 378    }
 379    for (i = 0; i < PIPE_MAX_VERTEX_SAMPLERS; i++) {
 380       failover->sw_vertex_sampler_state[i] = i < num_samplers ? state[i].sw_state : NULL;
 381       failover->hw_vertex_sampler_state[i] = i < num_samplers ? state[i].hw_state : NULL;
 382    }
 383    failover->dirty |= FO_NEW_SAMPLER;
 384    failover->num_vertex_samplers = num_samplers;
 385    failover->sw->bind_vertex_sampler_states(failover->sw,
 386                                             num_samplers,
 387                                             failover->sw_vertex_sampler_state);
 388    failover->hw->bind_vertex_sampler_states(failover->hw,
 389                                             num_samplers,
 390                                             failover->hw_vertex_sampler_state);
 391 }
 392
 393 static void
 394 failover_delete_sampler_state(struct pipe_context *pipe, void *sampler)
 395 {
 396    struct fo_state *state = (struct fo_state*)sampler;
 397    struct failover_context *failover = failover_context(pipe);
 398
 399    failover->sw->delete_sampler_state(failover->sw, state->sw_state);
 400    failover->hw->delete_sampler_state(failover->hw, state->hw_state);
 401    state->sw_state = 0;
 402    state->hw_state = 0;
 403    free(state);
 404 }
 405
 406
 407 static void
 408 failover_set_fragment_sampler_textures(struct pipe_context *pipe,
 409                                        unsigned num,
 410                                        struct pipe_texture **texture)
 411 {
 412    struct failover_context *failover = failover_context(pipe);
 413    uint i;
 414
 415    assert(num <= PIPE_MAX_SAMPLERS);
 416
 417    /* Check for no-op */
 418    if (num == failover->num_textures &&
 419        !memcmp(failover->texture, texture, num * sizeof(struct pipe_texture *)))
 420       return;
 421    for (i = 0; i < num; i++)
 422       pipe_texture_reference((struct pipe_texture **) &failover->texture[i],
 423                              texture[i]);
 424    for (i = num; i < failover->num_textures; i++)
 425       pipe_texture_reference((struct pipe_texture **) &failover->texture[i],
 426                              NULL);
 427    failover->dirty |= FO_NEW_TEXTURE;
 428    failover->num_textures = num;
 429    failover->sw->set_fragment_sampler_textures( failover->sw, num, texture );
 430    failover->hw->set_fragment_sampler_textures( failover->hw, num, texture );
 431 }
 432
 433
 434 static void
 435 failover_set_vertex_sampler_textures(struct pipe_context *pipe,
 436                                      unsigned num_textures,
 437                                      struct pipe_texture **textures)
 438 {
 439    struct failover_context *failover = failover_context(pipe);
 440    uint i;
 441
 442    assert(num_textures <= PIPE_MAX_VERTEX_SAMPLERS);
 443
 444    /* Check for no-op */
 445    if (num_textures == failover->num_vertex_textures &&
 446        !memcmp(failover->vertex_textures, textures, num_textures * sizeof(struct pipe_texture *))) {
 447       return;
 448    }
 449    for (i = 0; i < num_textures; i++) {
 450       pipe_texture_reference((struct pipe_texture **)&failover->vertex_textures[i],
 451                              textures[i]);
 452    }
 453    for (i = num_textures; i < failover->num_vertex_textures; i++) {
 454       pipe_texture_reference((struct pipe_texture **)&failover->vertex_textures[i],
 455                              NULL);
 456    }
 457    failover->dirty |= FO_NEW_TEXTURE;
 458    failover->num_vertex_textures = num_textures;
 459    failover->sw->set_vertex_sampler_textures(failover->sw, num_textures, textures);
 460    failover->hw->set_vertex_sampler_textures(failover->hw, num_textures, textures);
 461 }
 462
 463
 464 static void
 465 failover_set_viewport_state( struct pipe_context *pipe,
 466                              const struct pipe_viewport_state *viewport )
 467 {
 468    struct failover_context *failover = failover_context(pipe);
 469
 470    failover->viewport = *viewport;
 471    failover->dirty |= FO_NEW_VIEWPORT;
 472    failover->sw->set_viewport_state( failover->sw, viewport );
 473    failover->hw->set_viewport_state( failover->hw, viewport );
 474 }
 475
 476
 477 static void
 478 failover_set_vertex_buffers(struct pipe_context *pipe,
 479                             unsigned count,
 480                             const struct pipe_vertex_buffer *vertex_buffers)
 481 {
 482    struct failover_context *failover = failover_context(pipe);
 483
 484    memcpy(failover->vertex_buffers, vertex_buffers,
 485           count * sizeof(vertex_buffers[0]));
 486    failover->dirty |= FO_NEW_VERTEX_BUFFER;
 487    failover->num_vertex_buffers = count;
 488    failover->sw->set_vertex_buffers( failover->sw, count, vertex_buffers );
 489    failover->hw->set_vertex_buffers( failover->hw, count, vertex_buffers );
 490 }
 491
 492
 493 static void
 494 failover_set_vertex_elements(struct pipe_context *pipe,
 495                              unsigned count,
 496                              const struct pipe_vertex_element *vertex_elements)
 497 {
 498    struct failover_context *failover = failover_context(pipe);
 499
 500    memcpy(failover->vertex_elements, vertex_elements,
 501           count * sizeof(vertex_elements[0]));
 502
 503    failover->dirty |= FO_NEW_VERTEX_ELEMENT;
 504    failover->num_vertex_elements = count;
 505    failover->sw->set_vertex_elements( failover->sw, count, vertex_elements );
 506    failover->hw->set_vertex_elements( failover->hw, count, vertex_elements );
 507 }
 508
 509 void
 510 failover_set_constant_buffer(struct pipe_context *pipe,
 511                              uint shader, uint index,
 512                              struct pipe_buffer *buf)
 513 {
 514    struct failover_context *failover = failover_context(pipe);
 515
 516    assert(shader < PIPE_SHADER_TYPES);
 517    assert(index == 0);
 518
 519    failover->sw->set_constant_buffer(failover->sw, shader, index, buf);
 520    failover->hw->set_constant_buffer(failover->hw, shader, index, buf);
 521 }
 522
 523
 524 void
 525 failover_init_state_functions( struct failover_context *failover )
 526 {
 527    failover->pipe.create_blend_state = failover_create_blend_state;
 528    failover->pipe.bind_blend_state   = failover_bind_blend_state;
 529    failover->pipe.delete_blend_state = failover_delete_blend_state;
 530    failover->pipe.create_sampler_state = failover_create_sampler_state;
 531    failover->pipe.bind_fragment_sampler_states  = failover_bind_fragment_sampler_states;
 532    failover->pipe.bind_vertex_sampler_states  = failover_bind_vertex_sampler_states;
 533    failover->pipe.delete_sampler_state = failover_delete_sampler_state;
 534    failover->pipe.create_depth_stencil_alpha_state = failover_create_depth_stencil_state;
 535    failover->pipe.bind_depth_stencil_alpha_state   = failover_bind_depth_stencil_state;
 536    failover->pipe.delete_depth_stencil_alpha_state = failover_delete_depth_stencil_state;
 537    failover->pipe.create_rasterizer_state = failover_create_rasterizer_state;
 538    failover->pipe.bind_rasterizer_state = failover_bind_rasterizer_state;
 539    failover->pipe.delete_rasterizer_state = failover_delete_rasterizer_state;
 540    failover->pipe.create_fs_state = failover_create_fs_state;
 541    failover->pipe.bind_fs_state   = failover_bind_fs_state;
 542    failover->pipe.delete_fs_state = failover_delete_fs_state;
 543    failover->pipe.create_vs_state = failover_create_vs_state;
 544    failover->pipe.bind_vs_state   = failover_bind_vs_state;
 545    failover->pipe.delete_vs_state = failover_delete_vs_state;
 546
 547    failover->pipe.set_blend_color = failover_set_blend_color;
 548    failover->pipe.set_stencil_ref = failover_set_stencil_ref;
 549    failover->pipe.set_clip_state = failover_set_clip_state;
 550    failover->pipe.set_framebuffer_state = failover_set_framebuffer_state;
 551    failover->pipe.set_polygon_stipple = failover_set_polygon_stipple;
 552    failover->pipe.set_scissor_state = failover_set_scissor_state;
 553    failover->pipe.set_fragment_sampler_textures = failover_set_fragment_sampler_textures;
 554    failover->pipe.set_vertex_sampler_textures = failover_set_vertex_sampler_textures;
 555    failover->pipe.set_viewport_state = failover_set_viewport_state;
 556    failover->pipe.set_vertex_buffers = failover_set_vertex_buffers;
 557    failover->pipe.set_vertex_elements = failover_set_vertex_elements;
 558    failover->pipe.set_constant_buffer = failover_set_constant_buffer;
 559 }