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 "pipe/p_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_sampler_states(struct pipe_context *pipe,
 328                              unsigned num, void **sampler)
 329 {
 330    struct failover_context *failover = failover_context(pipe);
 331    struct fo_state *state = (struct fo_state*)sampler;
 332    uint i;
 333    assert(num <= PIPE_MAX_SAMPLERS);
 334    /* Check for no-op */
 335    if (num == failover->num_samplers &&
 336        !memcmp(failover->sampler, sampler, num * sizeof(void *)))
 337       return;
 338    for (i = 0; i < PIPE_MAX_SAMPLERS; i++) {
 339       failover->sw_sampler_state[i] = i < num ? state[i].sw_state : NULL;
 340       failover->hw_sampler_state[i] = i < num ? state[i].hw_state : NULL;
 341    }
 342    failover->dirty |= FO_NEW_SAMPLER;
 343    failover->num_samplers = num;
 344    failover->sw->bind_sampler_states(failover->sw, num,
 345                                      failover->sw_sampler_state);
 346    failover->hw->bind_sampler_states(failover->hw, num,
 347                                      failover->hw_sampler_state);
 348 }
 349
 350 static void
 351 failover_delete_sampler_state(struct pipe_context *pipe, void *sampler)
 352 {
 353    struct fo_state *state = (struct fo_state*)sampler;
 354    struct failover_context *failover = failover_context(pipe);
 355
 356    failover->sw->delete_sampler_state(failover->sw, state->sw_state);
 357    failover->hw->delete_sampler_state(failover->hw, state->hw_state);
 358    state->sw_state = 0;
 359    state->hw_state = 0;
 360    free(state);
 361 }
 362
 363
 364 static void
 365 failover_set_sampler_textures(struct pipe_context *pipe,
 366                               unsigned num,
 367                               struct pipe_texture **texture)
 368 {
 369    struct failover_context *failover = failover_context(pipe);
 370    uint i;
 371
 372    assert(num <= PIPE_MAX_SAMPLERS);
 373
 374    /* Check for no-op */
 375    if (num == failover->num_textures &&
 376        !memcmp(failover->texture, texture, num * sizeof(struct pipe_texture *)))
 377       return;
 378    for (i = 0; i < num; i++)
 379       pipe_texture_reference((struct pipe_texture **) &failover->texture[i],
 380                              texture[i]);
 381    for (i = num; i < failover->num_textures; i++)
 382       pipe_texture_reference((struct pipe_texture **) &failover->texture[i],
 383                              NULL);
 384    failover->dirty |= FO_NEW_TEXTURE;
 385    failover->num_textures = num;
 386    failover->sw->set_sampler_textures( failover->sw, num, texture );
 387    failover->hw->set_sampler_textures( failover->hw, num, texture );
 388 }
 389
 390
 391 static void
 392 failover_set_viewport_state( struct pipe_context *pipe,
 393                              const struct pipe_viewport_state *viewport )
 394 {
 395    struct failover_context *failover = failover_context(pipe);
 396
 397    failover->viewport = *viewport;
 398    failover->dirty |= FO_NEW_VIEWPORT;
 399    failover->sw->set_viewport_state( failover->sw, viewport );
 400    failover->hw->set_viewport_state( failover->hw, viewport );
 401 }
 402
 403
 404 static void
 405 failover_set_vertex_buffers(struct pipe_context *pipe,
 406                             unsigned count,
 407                             const struct pipe_vertex_buffer *vertex_buffers)
 408 {
 409    struct failover_context *failover = failover_context(pipe);
 410
 411    memcpy(failover->vertex_buffers, vertex_buffers,
 412           count * sizeof(vertex_buffers[0]));
 413    failover->dirty |= FO_NEW_VERTEX_BUFFER;
 414    failover->num_vertex_buffers = count;
 415    failover->sw->set_vertex_buffers( failover->sw, count, vertex_buffers );
 416    failover->hw->set_vertex_buffers( failover->hw, count, vertex_buffers );
 417 }
 418
 419
 420 static void
 421 failover_set_vertex_elements(struct pipe_context *pipe,
 422                              unsigned count,
 423                              const struct pipe_vertex_element *vertex_elements)
 424 {
 425    struct failover_context *failover = failover_context(pipe);
 426
 427    memcpy(failover->vertex_elements, vertex_elements,
 428           count * sizeof(vertex_elements[0]));
 429
 430    failover->dirty |= FO_NEW_VERTEX_ELEMENT;
 431    failover->num_vertex_elements = count;
 432    failover->sw->set_vertex_elements( failover->sw, count, vertex_elements );
 433    failover->hw->set_vertex_elements( failover->hw, count, vertex_elements );
 434 }
 435
 436 void
 437 failover_set_constant_buffer(struct pipe_context *pipe,
 438                              uint shader, uint index,
 439                              const struct pipe_constant_buffer *buf)
 440 {
 441    struct failover_context *failover = failover_context(pipe);
 442
 443    assert(shader < PIPE_SHADER_TYPES);
 444    assert(index == 0);
 445
 446    failover->sw->set_constant_buffer(failover->sw, shader, index, buf);
 447    failover->hw->set_constant_buffer(failover->hw, shader, index, buf);
 448 }
 449
 450
 451 void
 452 failover_init_state_functions( struct failover_context *failover )
 453 {
 454    failover->pipe.create_blend_state = failover_create_blend_state;
 455    failover->pipe.bind_blend_state   = failover_bind_blend_state;
 456    failover->pipe.delete_blend_state = failover_delete_blend_state;
 457    failover->pipe.create_sampler_state = failover_create_sampler_state;
 458    failover->pipe.bind_sampler_states  = failover_bind_sampler_states;
 459    failover->pipe.delete_sampler_state = failover_delete_sampler_state;
 460    failover->pipe.create_depth_stencil_alpha_state = failover_create_depth_stencil_state;
 461    failover->pipe.bind_depth_stencil_alpha_state   = failover_bind_depth_stencil_state;
 462    failover->pipe.delete_depth_stencil_alpha_state = failover_delete_depth_stencil_state;
 463    failover->pipe.create_rasterizer_state = failover_create_rasterizer_state;
 464    failover->pipe.bind_rasterizer_state = failover_bind_rasterizer_state;
 465    failover->pipe.delete_rasterizer_state = failover_delete_rasterizer_state;
 466    failover->pipe.create_fs_state = failover_create_fs_state;
 467    failover->pipe.bind_fs_state   = failover_bind_fs_state;
 468    failover->pipe.delete_fs_state = failover_delete_fs_state;
 469    failover->pipe.create_vs_state = failover_create_vs_state;
 470    failover->pipe.bind_vs_state   = failover_bind_vs_state;
 471    failover->pipe.delete_vs_state = failover_delete_vs_state;
 472
 473    failover->pipe.set_blend_color = failover_set_blend_color;
 474    failover->pipe.set_clip_state = failover_set_clip_state;
 475    failover->pipe.set_framebuffer_state = failover_set_framebuffer_state;
 476    failover->pipe.set_polygon_stipple = failover_set_polygon_stipple;
 477    failover->pipe.set_scissor_state = failover_set_scissor_state;
 478    failover->pipe.set_sampler_textures = failover_set_sampler_textures;
 479    failover->pipe.set_viewport_state = failover_set_viewport_state;
 480    failover->pipe.set_vertex_buffers = failover_set_vertex_buffers;
 481    failover->pipe.set_vertex_elements = failover_set_vertex_elements;
 482    failover->pipe.set_constant_buffer = failover_set_constant_buffer;
 483 }