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 "fo_context.h"
  32
  33
  34 /* This looks like a lot of work at the moment - we're keeping a
  35  * duplicate copy of the state up-to-date.
  36  *
  37  * This can change in two ways:
  38  * - With constant state objects we would only need to save a pointer,
  39  *     not the whole object.
  40  * - By adding a callback in the state tracker to re-emit state.  The
  41  *     state tracker knows the current state already and can re-emit it
  42  *     without additional complexity.
  43  *
  44  * This works as a proof-of-concept, but a final version will have
  45  * lower overheads.
  46  */
  47
  48
  49
  50 static void *
  51 failover_create_blend_state( struct pipe_context *pipe,
  52                              const struct pipe_blend_state *blend )
  53 {
  54    struct fo_state *state = malloc(sizeof(struct fo_state));
  55    struct failover_context *failover = failover_context(pipe);
  56
  57    state->sw_state = failover->sw->create_blend_state(failover->sw, blend);
  58    state->hw_state = failover->hw->create_blend_state(failover->hw, blend);
  59
  60    return state;
  61 }
  62
  63 static void
  64 failover_bind_blend_state( struct pipe_context *pipe,
  65                            void *blend )
  66 {
  67    struct failover_context *failover = failover_context(pipe);
  68    struct fo_state *state = (struct fo_state *)blend;
  69    failover->blend = state;
  70    failover->dirty |= FO_NEW_BLEND;
  71    failover->sw->bind_blend_state( failover->sw, state->sw_state );
  72    failover->hw->bind_blend_state( failover->hw, state->hw_state );
  73 }
  74
  75 static void
  76 failover_delete_blend_state( struct pipe_context *pipe,
  77                              void *blend )
  78 {
  79    struct fo_state *state = (struct fo_state*)blend;
  80    struct failover_context *failover = failover_context(pipe);
  81
  82    failover->sw->delete_blend_state(failover->sw, state->sw_state);
  83    failover->hw->delete_blend_state(failover->hw, state->hw_state);
  84    state->sw_state = 0;
  85    state->hw_state = 0;
  86    free(state);
  87 }
  88
  89 static void
  90 failover_set_blend_color( struct pipe_context *pipe,
  91                           const struct pipe_blend_color *blend_color )
  92 {
  93    struct failover_context *failover = failover_context(pipe);
  94
  95    failover->blend_color = *blend_color;
  96    failover->dirty |= FO_NEW_BLEND_COLOR;
  97    failover->sw->set_blend_color( failover->sw, blend_color );
  98    failover->hw->set_blend_color( failover->hw, blend_color );
  99 }
 100
 101 static void
 102 failover_set_clip_state( struct pipe_context *pipe,
 103                          const struct pipe_clip_state *clip )
 104 {
 105    struct failover_context *failover = failover_context(pipe);
 106
 107    failover->clip = *clip;
 108    failover->dirty |= FO_NEW_CLIP;
 109    failover->sw->set_clip_state( failover->sw, clip );
 110    failover->hw->set_clip_state( failover->hw, clip );
 111 }
 112
 113
 114 static void *
 115 failover_create_depth_stencil_state(struct pipe_context *pipe,
 116                               const struct pipe_depth_stencil_alpha_state *templ)
 117 {
 118    struct fo_state *state = malloc(sizeof(struct fo_state));
 119    struct failover_context *failover = failover_context(pipe);
 120
 121    state->sw_state = failover->sw->create_depth_stencil_alpha_state(failover->sw, templ);
 122    state->hw_state = failover->hw->create_depth_stencil_alpha_state(failover->hw, templ);
 123
 124    return state;
 125 }
 126
 127 static void
 128 failover_bind_depth_stencil_state(struct pipe_context *pipe,
 129                                   void *depth_stencil)
 130 {
 131    struct failover_context *failover = failover_context(pipe);
 132    struct fo_state *state = (struct fo_state *)depth_stencil;
 133    failover->depth_stencil = state;
 134    failover->dirty |= FO_NEW_DEPTH_STENCIL;
 135    failover->sw->bind_depth_stencil_alpha_state(failover->sw, state->sw_state);
 136    failover->hw->bind_depth_stencil_alpha_state(failover->hw, state->hw_state);
 137 }
 138
 139 static void
 140 failover_delete_depth_stencil_state(struct pipe_context *pipe,
 141                                     void *ds)
 142 {
 143    struct fo_state *state = (struct fo_state*)ds;
 144    struct failover_context *failover = failover_context(pipe);
 145
 146    failover->sw->delete_depth_stencil_alpha_state(failover->sw, state->sw_state);
 147    failover->hw->delete_depth_stencil_alpha_state(failover->hw, state->hw_state);
 148    state->sw_state = 0;
 149    state->hw_state = 0;
 150    free(state);
 151 }
 152
 153 static void
 154 failover_set_framebuffer_state(struct pipe_context *pipe,
 155                                const struct pipe_framebuffer_state *framebuffer)
 156 {
 157    struct failover_context *failover = failover_context(pipe);
 158
 159    failover->framebuffer = *framebuffer;
 160    failover->dirty |= FO_NEW_FRAMEBUFFER;
 161    failover->sw->set_framebuffer_state( failover->sw, framebuffer );
 162    failover->hw->set_framebuffer_state( failover->hw, framebuffer );
 163 }
 164
 165
 166 static void *
 167 failover_create_fs_state(struct pipe_context *pipe,
 168                          const struct pipe_shader_state *templ)
 169 {
 170    struct fo_state *state = malloc(sizeof(struct fo_state));
 171    struct failover_context *failover = failover_context(pipe);
 172
 173    state->sw_state = failover->sw->create_fs_state(failover->sw, templ);
 174    state->hw_state = failover->hw->create_fs_state(failover->hw, templ);
 175
 176    return state;
 177 }
 178
 179 static void
 180 failover_bind_fs_state(struct pipe_context *pipe, void *fs)
 181 {
 182    struct failover_context *failover = failover_context(pipe);
 183    struct fo_state *state = (struct fo_state*)fs;
 184    failover->fragment_shader = state;
 185    failover->dirty |= FO_NEW_FRAGMENT_SHADER;
 186    failover->sw->bind_fs_state(failover->sw, state->sw_state);
 187    failover->hw->bind_fs_state(failover->hw, state->hw_state);
 188 }
 189
 190 static void
 191 failover_delete_fs_state(struct pipe_context *pipe,
 192                          void *fs)
 193 {
 194    struct fo_state *state = (struct fo_state*)fs;
 195    struct failover_context *failover = failover_context(pipe);
 196
 197    failover->sw->delete_fs_state(failover->sw, state->sw_state);
 198    failover->hw->delete_fs_state(failover->hw, state->hw_state);
 199    state->sw_state = 0;
 200    state->hw_state = 0;
 201    free(state);
 202 }
 203
 204 static void *
 205 failover_create_vs_state(struct pipe_context *pipe,
 206                          const struct pipe_shader_state *templ)
 207 {
 208    struct fo_state *state = malloc(sizeof(struct fo_state));
 209    struct failover_context *failover = failover_context(pipe);
 210
 211    state->sw_state = failover->sw->create_vs_state(failover->sw, templ);
 212    state->hw_state = failover->hw->create_vs_state(failover->hw, templ);
 213
 214    return state;
 215 }
 216
 217 static void
 218 failover_bind_vs_state(struct pipe_context *pipe,
 219                        void *vs)
 220 {
 221    struct failover_context *failover = failover_context(pipe);
 222
 223    struct fo_state *state = (struct fo_state*)vs;
 224    failover->vertex_shader = state;
 225    failover->dirty |= FO_NEW_VERTEX_SHADER;
 226    failover->sw->bind_vs_state(failover->sw, state->sw_state);
 227    failover->hw->bind_vs_state(failover->hw, state->hw_state);
 228 }
 229
 230 static void
 231 failover_delete_vs_state(struct pipe_context *pipe,
 232                          void *vs)
 233 {
 234    struct fo_state *state = (struct fo_state*)vs;
 235    struct failover_context *failover = failover_context(pipe);
 236
 237    failover->sw->delete_vs_state(failover->sw, state->sw_state);
 238    failover->hw->delete_vs_state(failover->hw, state->hw_state);
 239    state->sw_state = 0;
 240    state->hw_state = 0;
 241    free(state);
 242 }
 243
 244 static void
 245 failover_set_polygon_stipple( struct pipe_context *pipe,
 246                               const struct pipe_poly_stipple *stipple )
 247 {
 248    struct failover_context *failover = failover_context(pipe);
 249
 250    failover->poly_stipple = *stipple;
 251    failover->dirty |= FO_NEW_STIPPLE;
 252    failover->sw->set_polygon_stipple( failover->sw, stipple );
 253    failover->hw->set_polygon_stipple( failover->hw, stipple );
 254 }
 255
 256
 257 static void *
 258 failover_create_rasterizer_state(struct pipe_context *pipe,
 259                                  const struct pipe_rasterizer_state *templ)
 260 {
 261    struct fo_state *state = malloc(sizeof(struct fo_state));
 262    struct failover_context *failover = failover_context(pipe);
 263
 264    state->sw_state = failover->sw->create_rasterizer_state(failover->sw, templ);
 265    state->hw_state = failover->hw->create_rasterizer_state(failover->hw, templ);
 266
 267    return state;
 268 }
 269
 270 static void
 271 failover_bind_rasterizer_state(struct pipe_context *pipe,
 272                                void *raster)
 273 {
 274    struct failover_context *failover = failover_context(pipe);
 275
 276    struct fo_state *state = (struct fo_state*)raster;
 277    failover->rasterizer = state;
 278    failover->dirty |= FO_NEW_RASTERIZER;
 279    failover->sw->bind_rasterizer_state(failover->sw, state->sw_state);
 280    failover->hw->bind_rasterizer_state(failover->hw, state->hw_state);
 281 }
 282
 283 static void
 284 failover_delete_rasterizer_state(struct pipe_context *pipe,
 285                                  void *raster)
 286 {
 287    struct fo_state *state = (struct fo_state*)raster;
 288    struct failover_context *failover = failover_context(pipe);
 289
 290    failover->sw->delete_rasterizer_state(failover->sw, state->sw_state);
 291    failover->hw->delete_rasterizer_state(failover->hw, state->hw_state);
 292    state->sw_state = 0;
 293    state->hw_state = 0;
 294    free(state);
 295 }
 296
 297
 298 static void
 299 failover_set_scissor_state( struct pipe_context *pipe,
 300                                  const struct pipe_scissor_state *scissor )
 301 {
 302    struct failover_context *failover = failover_context(pipe);
 303
 304    failover->scissor = *scissor;
 305    failover->dirty |= FO_NEW_SCISSOR;
 306    failover->sw->set_scissor_state( failover->sw, scissor );
 307    failover->hw->set_scissor_state( failover->hw, scissor );
 308 }
 309
 310
 311 static void *
 312 failover_create_sampler_state(struct pipe_context *pipe,
 313                               const struct pipe_sampler_state *templ)
 314 {
 315    struct fo_state *state = malloc(sizeof(struct fo_state));
 316    struct failover_context *failover = failover_context(pipe);
 317
 318    state->sw_state = failover->sw->create_sampler_state(failover->sw, templ);
 319    state->hw_state = failover->hw->create_sampler_state(failover->hw, templ);
 320
 321    return state;
 322 }
 323
 324 static void
 325 failover_bind_sampler_states(struct pipe_context *pipe,
 326                              unsigned num, void **sampler)
 327 {
 328    struct failover_context *failover = failover_context(pipe);
 329    struct fo_state *state = (struct fo_state*)sampler;
 330    uint i;
 331    assert(num <= PIPE_MAX_SAMPLERS);
 332    /* Check for no-op */
 333    if (num == failover->num_samplers &&
 334        !memcmp(failover->sampler, sampler, num * sizeof(void *)))
 335       return;
 336    for (i = 0; i < PIPE_MAX_SAMPLERS; i++) {
 337       failover->sw_sampler_state[i] = i < num ? state[i].sw_state : NULL;
 338       failover->hw_sampler_state[i] = i < num ? state[i].hw_state : NULL;
 339    }
 340    failover->dirty |= FO_NEW_SAMPLER;
 341    failover->num_samplers = num;
 342    failover->sw->bind_sampler_states(failover->sw, num,
 343                                      failover->sw_sampler_state);
 344    failover->hw->bind_sampler_states(failover->hw, num,
 345                                      failover->hw_sampler_state);
 346 }
 347
 348 static void
 349 failover_delete_sampler_state(struct pipe_context *pipe, void *sampler)
 350 {
 351    struct fo_state *state = (struct fo_state*)sampler;
 352    struct failover_context *failover = failover_context(pipe);
 353
 354    failover->sw->delete_sampler_state(failover->sw, state->sw_state);
 355    failover->hw->delete_sampler_state(failover->hw, state->hw_state);
 356    state->sw_state = 0;
 357    state->hw_state = 0;
 358    free(state);
 359 }
 360
 361
 362 static void
 363 failover_set_sampler_textures(struct pipe_context *pipe,
 364                               unsigned num,
 365                               struct pipe_texture **texture)
 366 {
 367    struct failover_context *failover = failover_context(pipe);
 368    uint i;
 369
 370    assert(num <= PIPE_MAX_SAMPLERS);
 371
 372    /* Check for no-op */
 373    if (num == failover->num_textures &&
 374        !memcmp(failover->texture, texture, num * sizeof(struct pipe_texture *)))
 375       return;
 376    for (i = 0; i < num; i++)
 377       pipe_texture_reference((struct pipe_texture **) &failover->texture[i],
 378                              texture[i]);
 379    for (i = num; i < failover->num_textures; i++)
 380       pipe_texture_reference((struct pipe_texture **) &failover->texture[i],
 381                              NULL);
 382    failover->dirty |= FO_NEW_TEXTURE;
 383    failover->num_textures = num;
 384    failover->sw->set_sampler_textures( failover->sw, num, texture );
 385    failover->hw->set_sampler_textures( failover->hw, num, texture );
 386 }
 387
 388
 389 static void
 390 failover_set_viewport_state( struct pipe_context *pipe,
 391                              const struct pipe_viewport_state *viewport )
 392 {
 393    struct failover_context *failover = failover_context(pipe);
 394
 395    failover->viewport = *viewport;
 396    failover->dirty |= FO_NEW_VIEWPORT;
 397    failover->sw->set_viewport_state( failover->sw, viewport );
 398    failover->hw->set_viewport_state( failover->hw, viewport );
 399 }
 400
 401
 402 static void
 403 failover_set_vertex_buffers(struct pipe_context *pipe,
 404                             unsigned count,
 405                             const struct pipe_vertex_buffer *vertex_buffers)
 406 {
 407    struct failover_context *failover = failover_context(pipe);
 408
 409    memcpy(failover->vertex_buffers, vertex_buffers,
 410           count * sizeof(vertex_buffers[0]));
 411    failover->dirty |= FO_NEW_VERTEX_BUFFER;
 412    failover->num_vertex_buffers = count;
 413    failover->sw->set_vertex_buffers( failover->sw, count, vertex_buffers );
 414    failover->hw->set_vertex_buffers( failover->hw, count, vertex_buffers );
 415 }
 416
 417
 418 static void
 419 failover_set_vertex_elements(struct pipe_context *pipe,
 420                              unsigned count,
 421                              const struct pipe_vertex_element *vertex_elements)
 422 {
 423    struct failover_context *failover = failover_context(pipe);
 424
 425    memcpy(failover->vertex_elements, vertex_elements,
 426           count * sizeof(vertex_elements[0]));
 427
 428    failover->dirty |= FO_NEW_VERTEX_ELEMENT;
 429    failover->num_vertex_elements = count;
 430    failover->sw->set_vertex_elements( failover->sw, count, vertex_elements );
 431    failover->hw->set_vertex_elements( failover->hw, count, vertex_elements );
 432 }
 433
 434 void
 435 failover_set_constant_buffer(struct pipe_context *pipe,
 436                              uint shader, uint index,
 437                              const struct pipe_constant_buffer *buf)
 438 {
 439    struct failover_context *failover = failover_context(pipe);
 440
 441    assert(shader < PIPE_SHADER_TYPES);
 442    assert(index == 0);
 443
 444    failover->sw->set_constant_buffer(failover->sw, shader, index, buf);
 445    failover->hw->set_constant_buffer(failover->hw, shader, index, buf);
 446 }
 447
 448
 449 void
 450 failover_init_state_functions( struct failover_context *failover )
 451 {
 452    failover->pipe.create_blend_state = failover_create_blend_state;
 453    failover->pipe.bind_blend_state   = failover_bind_blend_state;
 454    failover->pipe.delete_blend_state = failover_delete_blend_state;
 455    failover->pipe.create_sampler_state = failover_create_sampler_state;
 456    failover->pipe.bind_sampler_states  = failover_bind_sampler_states;
 457    failover->pipe.delete_sampler_state = failover_delete_sampler_state;
 458    failover->pipe.create_depth_stencil_alpha_state = failover_create_depth_stencil_state;
 459    failover->pipe.bind_depth_stencil_alpha_state   = failover_bind_depth_stencil_state;
 460    failover->pipe.delete_depth_stencil_alpha_state = failover_delete_depth_stencil_state;
 461    failover->pipe.create_rasterizer_state = failover_create_rasterizer_state;
 462    failover->pipe.bind_rasterizer_state = failover_bind_rasterizer_state;
 463    failover->pipe.delete_rasterizer_state = failover_delete_rasterizer_state;
 464    failover->pipe.create_fs_state = failover_create_fs_state;
 465    failover->pipe.bind_fs_state   = failover_bind_fs_state;
 466    failover->pipe.delete_fs_state = failover_delete_fs_state;
 467    failover->pipe.create_vs_state = failover_create_vs_state;
 468    failover->pipe.bind_vs_state   = failover_bind_vs_state;
 469    failover->pipe.delete_vs_state = failover_delete_vs_state;
 470
 471    failover->pipe.set_blend_color = failover_set_blend_color;
 472    failover->pipe.set_clip_state = failover_set_clip_state;
 473    failover->pipe.set_framebuffer_state = failover_set_framebuffer_state;
 474    failover->pipe.set_polygon_stipple = failover_set_polygon_stipple;
 475    failover->pipe.set_scissor_state = failover_set_scissor_state;
 476    failover->pipe.set_sampler_textures = failover_set_sampler_textures;
 477    failover->pipe.set_viewport_state = failover_set_viewport_state;
 478    failover->pipe.set_vertex_buffers = failover_set_vertex_buffers;
 479    failover->pipe.set_vertex_elements = failover_set_vertex_elements;
 480    failover->pipe.set_constant_buffer = failover_set_constant_buffer;
 481 }