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_clip_state( struct pipe_context *pipe,
 105                          const struct pipe_clip_state *clip )
 106 {
 107    struct failover_context *failover = failover_context(pipe);
 108
 109    failover->clip = *clip;
 110    failover->dirty |= FO_NEW_CLIP;
 111    failover->sw->set_clip_state( failover->sw, clip );
 112    failover->hw->set_clip_state( failover->hw, clip );
 113 }
 114
 115
 116 static void *
 117 failover_create_depth_stencil_state(struct pipe_context *pipe,
 118                               const struct pipe_depth_stencil_alpha_state *templ)
 119 {
 120    struct fo_state *state = malloc(sizeof(struct fo_state));
 121    struct failover_context *failover = failover_context(pipe);
 122
 123    state->sw_state = failover->sw->create_depth_stencil_alpha_state(failover->sw, templ);
 124    state->hw_state = failover->hw->create_depth_stencil_alpha_state(failover->hw, templ);
 125
 126    return state;
 127 }
 128
 129 static void
 130 failover_bind_depth_stencil_state(struct pipe_context *pipe,
 131                                   void *depth_stencil)
 132 {
 133    struct failover_context *failover = failover_context(pipe);
 134    struct fo_state *state = (struct fo_state *)depth_stencil;
 135    failover->depth_stencil = state;
 136    failover->dirty |= FO_NEW_DEPTH_STENCIL;
 137    failover->sw->bind_depth_stencil_alpha_state(failover->sw, state->sw_state);
 138    failover->hw->bind_depth_stencil_alpha_state(failover->hw, state->hw_state);
 139 }
 140
 141 static void
 142 failover_delete_depth_stencil_state(struct pipe_context *pipe,
 143                                     void *ds)
 144 {
 145    struct fo_state *state = (struct fo_state*)ds;
 146    struct failover_context *failover = failover_context(pipe);
 147
 148    failover->sw->delete_depth_stencil_alpha_state(failover->sw, state->sw_state);
 149    failover->hw->delete_depth_stencil_alpha_state(failover->hw, state->hw_state);
 150    state->sw_state = 0;
 151    state->hw_state = 0;
 152    free(state);
 153 }
 154
 155 static void
 156 failover_set_framebuffer_state(struct pipe_context *pipe,
 157                                const struct pipe_framebuffer_state *framebuffer)
 158 {
 159    struct failover_context *failover = failover_context(pipe);
 160
 161    failover->framebuffer = *framebuffer;
 162    failover->dirty |= FO_NEW_FRAMEBUFFER;
 163    failover->sw->set_framebuffer_state( failover->sw, framebuffer );
 164    failover->hw->set_framebuffer_state( failover->hw, framebuffer );
 165 }
 166
 167
 168 static void *
 169 failover_create_fs_state(struct pipe_context *pipe,
 170                          const struct pipe_shader_state *templ)
 171 {
 172    struct fo_state *state = malloc(sizeof(struct fo_state));
 173    struct failover_context *failover = failover_context(pipe);
 174
 175    state->sw_state = failover->sw->create_fs_state(failover->sw, templ);
 176    state->hw_state = failover->hw->create_fs_state(failover->hw, templ);
 177
 178    return state;
 179 }
 180
 181 static void
 182 failover_bind_fs_state(struct pipe_context *pipe, void *fs)
 183 {
 184    struct failover_context *failover = failover_context(pipe);
 185    struct fo_state *state = (struct fo_state*)fs;
 186    failover->fragment_shader = state;
 187    failover->dirty |= FO_NEW_FRAGMENT_SHADER;
 188    failover->sw->bind_fs_state(failover->sw, state->sw_state);
 189    failover->hw->bind_fs_state(failover->hw, state->hw_state);
 190 }
 191
 192 static void
 193 failover_delete_fs_state(struct pipe_context *pipe,
 194                          void *fs)
 195 {
 196    struct fo_state *state = (struct fo_state*)fs;
 197    struct failover_context *failover = failover_context(pipe);
 198
 199    failover->sw->delete_fs_state(failover->sw, state->sw_state);
 200    failover->hw->delete_fs_state(failover->hw, state->hw_state);
 201    state->sw_state = 0;
 202    state->hw_state = 0;
 203    free(state);
 204 }
 205
 206 static void *
 207 failover_create_vs_state(struct pipe_context *pipe,
 208                          const struct pipe_shader_state *templ)
 209 {
 210    struct fo_state *state = malloc(sizeof(struct fo_state));
 211    struct failover_context *failover = failover_context(pipe);
 212
 213    state->sw_state = failover->sw->create_vs_state(failover->sw, templ);
 214    state->hw_state = failover->hw->create_vs_state(failover->hw, templ);
 215
 216    return state;
 217 }
 218
 219 static void
 220 failover_bind_vs_state(struct pipe_context *pipe,
 221                        void *vs)
 222 {
 223    struct failover_context *failover = failover_context(pipe);
 224
 225    struct fo_state *state = (struct fo_state*)vs;
 226    failover->vertex_shader = state;
 227    failover->dirty |= FO_NEW_VERTEX_SHADER;
 228    failover->sw->bind_vs_state(failover->sw, state->sw_state);
 229    failover->hw->bind_vs_state(failover->hw, state->hw_state);
 230 }
 231
 232 static void
 233 failover_delete_vs_state(struct pipe_context *pipe,
 234                          void *vs)
 235 {
 236    struct fo_state *state = (struct fo_state*)vs;
 237    struct failover_context *failover = failover_context(pipe);
 238
 239    failover->sw->delete_vs_state(failover->sw, state->sw_state);
 240    failover->hw->delete_vs_state(failover->hw, state->hw_state);
 241    state->sw_state = 0;
 242    state->hw_state = 0;
 243    free(state);
 244 }
 245
 246 static void
 247 failover_set_polygon_stipple( struct pipe_context *pipe,
 248                               const struct pipe_poly_stipple *stipple )
 249 {
 250    struct failover_context *failover = failover_context(pipe);
 251
 252    failover->poly_stipple = *stipple;
 253    failover->dirty |= FO_NEW_STIPPLE;
 254    failover->sw->set_polygon_stipple( failover->sw, stipple );
 255    failover->hw->set_polygon_stipple( failover->hw, stipple );
 256 }
 257
 258
 259 static void *
 260 failover_create_rasterizer_state(struct pipe_context *pipe,
 261                                  const struct pipe_rasterizer_state *templ)
 262 {
 263    struct fo_state *state = malloc(sizeof(struct fo_state));
 264    struct failover_context *failover = failover_context(pipe);
 265
 266    state->sw_state = failover->sw->create_rasterizer_state(failover->sw, templ);
 267    state->hw_state = failover->hw->create_rasterizer_state(failover->hw, templ);
 268
 269    return state;
 270 }
 271
 272 static void
 273 failover_bind_rasterizer_state(struct pipe_context *pipe,
 274                                void *raster)
 275 {
 276    struct failover_context *failover = failover_context(pipe);
 277
 278    struct fo_state *state = (struct fo_state*)raster;
 279    failover->rasterizer = state;
 280    failover->dirty |= FO_NEW_RASTERIZER;
 281    failover->sw->bind_rasterizer_state(failover->sw, state->sw_state);
 282    failover->hw->bind_rasterizer_state(failover->hw, state->hw_state);
 283 }
 284
 285 static void
 286 failover_delete_rasterizer_state(struct pipe_context *pipe,
 287                                  void *raster)
 288 {
 289    struct fo_state *state = (struct fo_state*)raster;
 290    struct failover_context *failover = failover_context(pipe);
 291
 292    failover->sw->delete_rasterizer_state(failover->sw, state->sw_state);
 293    failover->hw->delete_rasterizer_state(failover->hw, state->hw_state);
 294    state->sw_state = 0;
 295    state->hw_state = 0;
 296    free(state);
 297 }
 298
 299
 300 static void
 301 failover_set_scissor_state( struct pipe_context *pipe,
 302                                  const struct pipe_scissor_state *scissor )
 303 {
 304    struct failover_context *failover = failover_context(pipe);
 305
 306    failover->scissor = *scissor;
 307    failover->dirty |= FO_NEW_SCISSOR;
 308    failover->sw->set_scissor_state( failover->sw, scissor );
 309    failover->hw->set_scissor_state( failover->hw, scissor );
 310 }
 311
 312
 313 static void *
 314 failover_create_sampler_state(struct pipe_context *pipe,
 315                               const struct pipe_sampler_state *templ)
 316 {
 317    struct fo_state *state = malloc(sizeof(struct fo_state));
 318    struct failover_context *failover = failover_context(pipe);
 319
 320    state->sw_state = failover->sw->create_sampler_state(failover->sw, templ);
 321    state->hw_state = failover->hw->create_sampler_state(failover->hw, templ);
 322
 323    return state;
 324 }
 325
 326 static void
 327 failover_bind_fragment_sampler_states(struct pipe_context *pipe,
 328                                       unsigned num,
 329                                       void **sampler)
 330 {
 331    struct failover_context *failover = failover_context(pipe);
 332    struct fo_state *state = (struct fo_state*)sampler;
 333    uint i;
 334    assert(num <= PIPE_MAX_SAMPLERS);
 335    /* Check for no-op */
 336    if (num == failover->num_samplers &&
 337        !memcmp(failover->sampler, sampler, num * sizeof(void *)))
 338       return;
 339    for (i = 0; i < PIPE_MAX_SAMPLERS; i++) {
 340       failover->sw_sampler_state[i] = i < num ? state[i].sw_state : NULL;
 341       failover->hw_sampler_state[i] = i < num ? state[i].hw_state : NULL;
 342    }
 343    failover->dirty |= FO_NEW_SAMPLER;
 344    failover->num_samplers = num;
 345    failover->sw->bind_fragment_sampler_states(failover->sw, num,
 346                                               failover->sw_sampler_state);
 347    failover->hw->bind_fragment_sampler_states(failover->hw, num,
 348                                               failover->hw_sampler_state);
 349 }
 350
 351 static void
 352 failover_bind_vertex_sampler_states(struct pipe_context *pipe,
 353                                     unsigned num_samplers,
 354                                     void **samplers)
 355 {
 356    struct failover_context *failover = failover_context(pipe);
 357    struct fo_state *state = (struct fo_state*)samplers;
 358    uint i;
 359
 360    assert(num_samplers <= PIPE_MAX_VERTEX_SAMPLERS);
 361
 362    /* Check for no-op */
 363    if (num_samplers == failover->num_vertex_samplers &&
 364        !memcmp(failover->vertex_samplers, samplers, num_samplers * sizeof(void *))) {
 365       return;
 366    }
 367    for (i = 0; i < PIPE_MAX_VERTEX_SAMPLERS; i++) {
 368       failover->sw_vertex_sampler_state[i] = i < num_samplers ? state[i].sw_state : NULL;
 369       failover->hw_vertex_sampler_state[i] = i < num_samplers ? state[i].hw_state : NULL;
 370    }
 371    failover->dirty |= FO_NEW_SAMPLER;
 372    failover->num_vertex_samplers = num_samplers;
 373    failover->sw->bind_vertex_sampler_states(failover->sw,
 374                                             num_samplers,
 375                                             failover->sw_vertex_sampler_state);
 376    failover->hw->bind_vertex_sampler_states(failover->hw,
 377                                             num_samplers,
 378                                             failover->hw_vertex_sampler_state);
 379 }
 380
 381 static void
 382 failover_delete_sampler_state(struct pipe_context *pipe, void *sampler)
 383 {
 384    struct fo_state *state = (struct fo_state*)sampler;
 385    struct failover_context *failover = failover_context(pipe);
 386
 387    failover->sw->delete_sampler_state(failover->sw, state->sw_state);
 388    failover->hw->delete_sampler_state(failover->hw, state->hw_state);
 389    state->sw_state = 0;
 390    state->hw_state = 0;
 391    free(state);
 392 }
 393
 394
 395 static void
 396 failover_set_fragment_sampler_textures(struct pipe_context *pipe,
 397                                        unsigned num,
 398                                        struct pipe_texture **texture)
 399 {
 400    struct failover_context *failover = failover_context(pipe);
 401    uint i;
 402
 403    assert(num <= PIPE_MAX_SAMPLERS);
 404
 405    /* Check for no-op */
 406    if (num == failover->num_textures &&
 407        !memcmp(failover->texture, texture, num * sizeof(struct pipe_texture *)))
 408       return;
 409    for (i = 0; i < num; i++)
 410       pipe_texture_reference((struct pipe_texture **) &failover->texture[i],
 411                              texture[i]);
 412    for (i = num; i < failover->num_textures; i++)
 413       pipe_texture_reference((struct pipe_texture **) &failover->texture[i],
 414                              NULL);
 415    failover->dirty |= FO_NEW_TEXTURE;
 416    failover->num_textures = num;
 417    failover->sw->set_fragment_sampler_textures( failover->sw, num, texture );
 418    failover->hw->set_fragment_sampler_textures( failover->hw, num, texture );
 419 }
 420
 421
 422 static void
 423 failover_set_vertex_sampler_textures(struct pipe_context *pipe,
 424                                      unsigned num_textures,
 425                                      struct pipe_texture **textures)
 426 {
 427    struct failover_context *failover = failover_context(pipe);
 428    uint i;
 429
 430    assert(num_textures <= PIPE_MAX_VERTEX_SAMPLERS);
 431
 432    /* Check for no-op */
 433    if (num_textures == failover->num_vertex_textures &&
 434        !memcmp(failover->vertex_textures, textures, num_textures * sizeof(struct pipe_texture *))) {
 435       return;
 436    }
 437    for (i = 0; i < num_textures; i++) {
 438       pipe_texture_reference((struct pipe_texture **)&failover->vertex_textures[i],
 439                              textures[i]);
 440    }
 441    for (i = num_textures; i < failover->num_vertex_textures; i++) {
 442       pipe_texture_reference((struct pipe_texture **)&failover->vertex_textures[i],
 443                              NULL);
 444    }
 445    failover->dirty |= FO_NEW_TEXTURE;
 446    failover->num_vertex_textures = num_textures;
 447    failover->sw->set_vertex_sampler_textures(failover->sw, num_textures, textures);
 448    failover->hw->set_vertex_sampler_textures(failover->hw, num_textures, textures);
 449 }
 450
 451
 452 static void
 453 failover_set_viewport_state( struct pipe_context *pipe,
 454                              const struct pipe_viewport_state *viewport )
 455 {
 456    struct failover_context *failover = failover_context(pipe);
 457
 458    failover->viewport = *viewport;
 459    failover->dirty |= FO_NEW_VIEWPORT;
 460    failover->sw->set_viewport_state( failover->sw, viewport );
 461    failover->hw->set_viewport_state( failover->hw, viewport );
 462 }
 463
 464
 465 static void
 466 failover_set_vertex_buffers(struct pipe_context *pipe,
 467                             unsigned count,
 468                             const struct pipe_vertex_buffer *vertex_buffers)
 469 {
 470    struct failover_context *failover = failover_context(pipe);
 471
 472    memcpy(failover->vertex_buffers, vertex_buffers,
 473           count * sizeof(vertex_buffers[0]));
 474    failover->dirty |= FO_NEW_VERTEX_BUFFER;
 475    failover->num_vertex_buffers = count;
 476    failover->sw->set_vertex_buffers( failover->sw, count, vertex_buffers );
 477    failover->hw->set_vertex_buffers( failover->hw, count, vertex_buffers );
 478 }
 479
 480
 481 static void
 482 failover_set_vertex_elements(struct pipe_context *pipe,
 483                              unsigned count,
 484                              const struct pipe_vertex_element *vertex_elements)
 485 {
 486    struct failover_context *failover = failover_context(pipe);
 487
 488    memcpy(failover->vertex_elements, vertex_elements,
 489           count * sizeof(vertex_elements[0]));
 490
 491    failover->dirty |= FO_NEW_VERTEX_ELEMENT;
 492    failover->num_vertex_elements = count;
 493    failover->sw->set_vertex_elements( failover->sw, count, vertex_elements );
 494    failover->hw->set_vertex_elements( failover->hw, count, vertex_elements );
 495 }
 496
 497 void
 498 failover_set_constant_buffer(struct pipe_context *pipe,
 499                              uint shader, uint index,
 500                              struct pipe_buffer *buf)
 501 {
 502    struct failover_context *failover = failover_context(pipe);
 503
 504    assert(shader < PIPE_SHADER_TYPES);
 505    assert(index == 0);
 506
 507    failover->sw->set_constant_buffer(failover->sw, shader, index, buf);
 508    failover->hw->set_constant_buffer(failover->hw, shader, index, buf);
 509 }
 510
 511
 512 void
 513 failover_init_state_functions( struct failover_context *failover )
 514 {
 515    failover->pipe.create_blend_state = failover_create_blend_state;
 516    failover->pipe.bind_blend_state   = failover_bind_blend_state;
 517    failover->pipe.delete_blend_state = failover_delete_blend_state;
 518    failover->pipe.create_sampler_state = failover_create_sampler_state;
 519    failover->pipe.bind_fragment_sampler_states  = failover_bind_fragment_sampler_states;
 520    failover->pipe.bind_vertex_sampler_states  = failover_bind_vertex_sampler_states;
 521    failover->pipe.delete_sampler_state = failover_delete_sampler_state;
 522    failover->pipe.create_depth_stencil_alpha_state = failover_create_depth_stencil_state;
 523    failover->pipe.bind_depth_stencil_alpha_state   = failover_bind_depth_stencil_state;
 524    failover->pipe.delete_depth_stencil_alpha_state = failover_delete_depth_stencil_state;
 525    failover->pipe.create_rasterizer_state = failover_create_rasterizer_state;
 526    failover->pipe.bind_rasterizer_state = failover_bind_rasterizer_state;
 527    failover->pipe.delete_rasterizer_state = failover_delete_rasterizer_state;
 528    failover->pipe.create_fs_state = failover_create_fs_state;
 529    failover->pipe.bind_fs_state   = failover_bind_fs_state;
 530    failover->pipe.delete_fs_state = failover_delete_fs_state;
 531    failover->pipe.create_vs_state = failover_create_vs_state;
 532    failover->pipe.bind_vs_state   = failover_bind_vs_state;
 533    failover->pipe.delete_vs_state = failover_delete_vs_state;
 534
 535    failover->pipe.set_blend_color = failover_set_blend_color;
 536    failover->pipe.set_clip_state = failover_set_clip_state;
 537    failover->pipe.set_framebuffer_state = failover_set_framebuffer_state;
 538    failover->pipe.set_polygon_stipple = failover_set_polygon_stipple;
 539    failover->pipe.set_scissor_state = failover_set_scissor_state;
 540    failover->pipe.set_fragment_sampler_textures = failover_set_fragment_sampler_textures;
 541    failover->pipe.set_vertex_sampler_textures = failover_set_vertex_sampler_textures;
 542    failover->pipe.set_viewport_state = failover_set_viewport_state;
 543    failover->pipe.set_vertex_buffers = failover_set_vertex_buffers;
 544    failover->pipe.set_vertex_elements = failover_set_vertex_elements;
 545    failover->pipe.set_constant_buffer = failover_set_constant_buffer;
 546 }