src/gallium/drivers/galahad/glhd_context.c

   1 /**************************************************************************
   2  *
   3  * Copyright 2009 VMware, Inc.
   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 VMWARE 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
  29 #include "pipe/p_context.h"
  30
  31 #include "util/u_format.h"
  32 #include "util/u_memory.h"
  33 #include "util/u_inlines.h"
  34
  35 #include "glhd_context.h"
  36 #include "glhd_objects.h"
  37
  38
  39 static void
  40 galahad_destroy(struct pipe_context *_pipe)
  41 {
  42    struct galahad_context *glhd_pipe = galahad_context(_pipe);
  43    struct pipe_context *pipe = glhd_pipe->pipe;
  44
  45    pipe->destroy(pipe);
  46
  47    FREE(glhd_pipe);
  48 }
  49
  50 static void
  51 galahad_draw_arrays(struct pipe_context *_pipe,
  52                      unsigned prim,
  53                      unsigned start,
  54                      unsigned count)
  55 {
  56    struct galahad_context *glhd_pipe = galahad_context(_pipe);
  57    struct pipe_context *pipe = glhd_pipe->pipe;
  58
  59    pipe->draw_arrays(pipe,
  60                      prim,
  61                      start,
  62                      count);
  63 }
  64
  65 static void
  66 galahad_draw_elements(struct pipe_context *_pipe,
  67                        struct pipe_resource *_indexResource,
  68                        unsigned indexSize,
  69                        int indexBias,
  70                        unsigned prim,
  71                        unsigned start,
  72                        unsigned count)
  73 {
  74    struct galahad_context *glhd_pipe = galahad_context(_pipe);
  75    struct galahad_resource *glhd_resource = galahad_resource(_indexResource);
  76    struct pipe_context *pipe = glhd_pipe->pipe;
  77    struct pipe_resource *indexResource = glhd_resource->resource;
  78
  79    pipe->draw_elements(pipe,
  80                        indexResource,
  81                        indexSize,
  82                        indexBias,
  83                        prim,
  84                        start,
  85                        count);
  86 }
  87
  88 static void
  89 galahad_draw_range_elements(struct pipe_context *_pipe,
  90                              struct pipe_resource *_indexResource,
  91                              unsigned indexSize,
  92                              int indexBias,
  93                              unsigned minIndex,
  94                              unsigned maxIndex,
  95                              unsigned mode,
  96                              unsigned start,
  97                              unsigned count)
  98 {
  99    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 100    struct galahad_resource *glhd_resource = galahad_resource(_indexResource);
 101    struct pipe_context *pipe = glhd_pipe->pipe;
 102    struct pipe_resource *indexResource = glhd_resource->resource;
 103
 104    pipe->draw_range_elements(pipe,
 105                              indexResource,
 106                              indexSize,
 107                              indexBias,
 108                              minIndex,
 109                              maxIndex,
 110                              mode,
 111                              start,
 112                              count);
 113 }
 114
 115 static struct pipe_query *
 116 galahad_create_query(struct pipe_context *_pipe,
 117                       unsigned query_type)
 118 {
 119    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 120    struct pipe_context *pipe = glhd_pipe->pipe;
 121
 122    if (query_type == PIPE_QUERY_OCCLUSION_COUNTER &&
 123       !pipe->screen->get_param(pipe->screen, PIPE_CAP_OCCLUSION_QUERY)) {
 124       glhd_error("Occlusion query requested but not supported");
 125    }
 126
 127    if (query_type == PIPE_QUERY_TIME_ELAPSED &&
 128       !pipe->screen->get_param(pipe->screen, PIPE_CAP_TIMER_QUERY)) {
 129       glhd_error("Timer query requested but not supported");
 130    }
 131
 132    return pipe->create_query(pipe,
 133                              query_type);
 134 }
 135
 136 static void
 137 galahad_destroy_query(struct pipe_context *_pipe,
 138                        struct pipe_query *query)
 139 {
 140    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 141    struct pipe_context *pipe = glhd_pipe->pipe;
 142
 143    pipe->destroy_query(pipe,
 144                        query);
 145 }
 146
 147 static void
 148 galahad_begin_query(struct pipe_context *_pipe,
 149                      struct pipe_query *query)
 150 {
 151    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 152    struct pipe_context *pipe = glhd_pipe->pipe;
 153
 154    pipe->begin_query(pipe,
 155                      query);
 156 }
 157
 158 static void
 159 galahad_end_query(struct pipe_context *_pipe,
 160                    struct pipe_query *query)
 161 {
 162    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 163    struct pipe_context *pipe = glhd_pipe->pipe;
 164
 165    pipe->end_query(pipe,
 166                    query);
 167 }
 168
 169 static boolean
 170 galahad_get_query_result(struct pipe_context *_pipe,
 171                           struct pipe_query *query,
 172                           boolean wait,
 173                           void *result)
 174 {
 175    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 176    struct pipe_context *pipe = glhd_pipe->pipe;
 177
 178    return pipe->get_query_result(pipe,
 179                                  query,
 180                                  wait,
 181                                  result);
 182 }
 183
 184 static void *
 185 galahad_create_blend_state(struct pipe_context *_pipe,
 186                             const struct pipe_blend_state *blend)
 187 {
 188    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 189    struct pipe_context *pipe = glhd_pipe->pipe;
 190
 191    if (blend->logicop_enable) {
 192       if (blend->rt[0].blend_enable) {
 193          glhd_warn("Blending enabled for render target 0, but logicops "
 194             "are enabled");
 195       }
 196    }
 197
 198    return pipe->create_blend_state(pipe,
 199                                    blend);
 200 }
 201
 202 static void
 203 galahad_bind_blend_state(struct pipe_context *_pipe,
 204                           void *blend)
 205 {
 206    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 207    struct pipe_context *pipe = glhd_pipe->pipe;
 208
 209    pipe->bind_blend_state(pipe,
 210                               blend);
 211 }
 212
 213 static void
 214 galahad_delete_blend_state(struct pipe_context *_pipe,
 215                             void *blend)
 216 {
 217    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 218    struct pipe_context *pipe = glhd_pipe->pipe;
 219
 220    pipe->delete_blend_state(pipe,
 221                             blend);
 222 }
 223
 224 static void *
 225 galahad_create_sampler_state(struct pipe_context *_pipe,
 226                               const struct pipe_sampler_state *sampler)
 227 {
 228    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 229    struct pipe_context *pipe = glhd_pipe->pipe;
 230
 231    return pipe->create_sampler_state(pipe,
 232                                      sampler);
 233 }
 234
 235 static void
 236 galahad_bind_fragment_sampler_states(struct pipe_context *_pipe,
 237                                       unsigned num_samplers,
 238                                       void **samplers)
 239 {
 240    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 241    struct pipe_context *pipe = glhd_pipe->pipe;
 242
 243    pipe->bind_fragment_sampler_states(pipe,
 244                                       num_samplers,
 245                                       samplers);
 246 }
 247
 248 static void
 249 galahad_bind_vertex_sampler_states(struct pipe_context *_pipe,
 250                                     unsigned num_samplers,
 251                                     void **samplers)
 252 {
 253    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 254    struct pipe_context *pipe = glhd_pipe->pipe;
 255
 256    pipe->bind_vertex_sampler_states(pipe,
 257                                     num_samplers,
 258                                     samplers);
 259 }
 260
 261 static void
 262 galahad_delete_sampler_state(struct pipe_context *_pipe,
 263                               void *sampler)
 264 {
 265    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 266    struct pipe_context *pipe = glhd_pipe->pipe;
 267
 268    pipe->delete_sampler_state(pipe,
 269                               sampler);
 270 }
 271
 272 static void *
 273 galahad_create_rasterizer_state(struct pipe_context *_pipe,
 274                                  const struct pipe_rasterizer_state *rasterizer)
 275 {
 276    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 277    struct pipe_context *pipe = glhd_pipe->pipe;
 278
 279    if (rasterizer->point_quad_rasterization) {
 280        if (rasterizer->point_smooth) {
 281            glhd_warn("Point smoothing requested but ignored");
 282        }
 283    } else {
 284        if (rasterizer->sprite_coord_enable) {
 285            glhd_warn("Point sprites requested but ignored");
 286        }
 287    }
 288
 289    return pipe->create_rasterizer_state(pipe,
 290                                         rasterizer);
 291 }
 292
 293 static void
 294 galahad_bind_rasterizer_state(struct pipe_context *_pipe,
 295                                void *rasterizer)
 296 {
 297    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 298    struct pipe_context *pipe = glhd_pipe->pipe;
 299
 300    pipe->bind_rasterizer_state(pipe,
 301                                rasterizer);
 302 }
 303
 304 static void
 305 galahad_delete_rasterizer_state(struct pipe_context *_pipe,
 306                                  void *rasterizer)
 307 {
 308    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 309    struct pipe_context *pipe = glhd_pipe->pipe;
 310
 311    pipe->delete_rasterizer_state(pipe,
 312                                  rasterizer);
 313 }
 314
 315 static void *
 316 galahad_create_depth_stencil_alpha_state(struct pipe_context *_pipe,
 317                                           const struct pipe_depth_stencil_alpha_state *depth_stencil_alpha)
 318 {
 319    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 320    struct pipe_context *pipe = glhd_pipe->pipe;
 321
 322    return pipe->create_depth_stencil_alpha_state(pipe,
 323                                                  depth_stencil_alpha);
 324 }
 325
 326 static void
 327 galahad_bind_depth_stencil_alpha_state(struct pipe_context *_pipe,
 328                                         void *depth_stencil_alpha)
 329 {
 330    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 331    struct pipe_context *pipe = glhd_pipe->pipe;
 332
 333    pipe->bind_depth_stencil_alpha_state(pipe,
 334                                         depth_stencil_alpha);
 335 }
 336
 337 static void
 338 galahad_delete_depth_stencil_alpha_state(struct pipe_context *_pipe,
 339                                           void *depth_stencil_alpha)
 340 {
 341    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 342    struct pipe_context *pipe = glhd_pipe->pipe;
 343
 344    pipe->delete_depth_stencil_alpha_state(pipe,
 345                                           depth_stencil_alpha);
 346 }
 347
 348 static void *
 349 galahad_create_fs_state(struct pipe_context *_pipe,
 350                          const struct pipe_shader_state *fs)
 351 {
 352    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 353    struct pipe_context *pipe = glhd_pipe->pipe;
 354
 355    return pipe->create_fs_state(pipe,
 356                                 fs);
 357 }
 358
 359 static void
 360 galahad_bind_fs_state(struct pipe_context *_pipe,
 361                        void *fs)
 362 {
 363    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 364    struct pipe_context *pipe = glhd_pipe->pipe;
 365
 366    pipe->bind_fs_state(pipe,
 367                        fs);
 368 }
 369
 370 static void
 371 galahad_delete_fs_state(struct pipe_context *_pipe,
 372                          void *fs)
 373 {
 374    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 375    struct pipe_context *pipe = glhd_pipe->pipe;
 376
 377    pipe->delete_fs_state(pipe,
 378                          fs);
 379 }
 380
 381 static void *
 382 galahad_create_vs_state(struct pipe_context *_pipe,
 383                          const struct pipe_shader_state *vs)
 384 {
 385    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 386    struct pipe_context *pipe = glhd_pipe->pipe;
 387
 388    return pipe->create_vs_state(pipe,
 389                                 vs);
 390 }
 391
 392 static void
 393 galahad_bind_vs_state(struct pipe_context *_pipe,
 394                        void *vs)
 395 {
 396    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 397    struct pipe_context *pipe = glhd_pipe->pipe;
 398
 399    pipe->bind_vs_state(pipe,
 400                        vs);
 401 }
 402
 403 static void
 404 galahad_delete_vs_state(struct pipe_context *_pipe,
 405                          void *vs)
 406 {
 407    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 408    struct pipe_context *pipe = glhd_pipe->pipe;
 409
 410    pipe->delete_vs_state(pipe,
 411                          vs);
 412 }
 413
 414
 415 static void *
 416 galahad_create_vertex_elements_state(struct pipe_context *_pipe,
 417                                       unsigned num_elements,
 418                                       const struct pipe_vertex_element *vertex_elements)
 419 {
 420    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 421    struct pipe_context *pipe = glhd_pipe->pipe;
 422
 423    return pipe->create_vertex_elements_state(pipe,
 424                                              num_elements,
 425                                              vertex_elements);
 426 }
 427
 428 static void
 429 galahad_bind_vertex_elements_state(struct pipe_context *_pipe,
 430                                     void *velems)
 431 {
 432    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 433    struct pipe_context *pipe = glhd_pipe->pipe;
 434
 435    pipe->bind_vertex_elements_state(pipe,
 436                                     velems);
 437 }
 438
 439 static void
 440 galahad_delete_vertex_elements_state(struct pipe_context *_pipe,
 441                                       void *velems)
 442 {
 443    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 444    struct pipe_context *pipe = glhd_pipe->pipe;
 445
 446    pipe->delete_vertex_elements_state(pipe,
 447                                       velems);
 448 }
 449
 450 static void
 451 galahad_set_blend_color(struct pipe_context *_pipe,
 452                          const struct pipe_blend_color *blend_color)
 453 {
 454    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 455    struct pipe_context *pipe = glhd_pipe->pipe;
 456
 457    pipe->set_blend_color(pipe,
 458                          blend_color);
 459 }
 460
 461 static void
 462 galahad_set_stencil_ref(struct pipe_context *_pipe,
 463                          const struct pipe_stencil_ref *stencil_ref)
 464 {
 465    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 466    struct pipe_context *pipe = glhd_pipe->pipe;
 467
 468    pipe->set_stencil_ref(pipe,
 469                          stencil_ref);
 470 }
 471
 472 static void
 473 galahad_set_clip_state(struct pipe_context *_pipe,
 474                         const struct pipe_clip_state *clip)
 475 {
 476    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 477    struct pipe_context *pipe = glhd_pipe->pipe;
 478
 479    pipe->set_clip_state(pipe,
 480                         clip);
 481 }
 482
 483 static void
 484 galahad_set_sample_mask(struct pipe_context *_pipe,
 485                          unsigned sample_mask)
 486 {
 487    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 488    struct pipe_context *pipe = glhd_pipe->pipe;
 489
 490    pipe->set_sample_mask(pipe,
 491                          sample_mask);
 492 }
 493
 494 static void
 495 galahad_set_constant_buffer(struct pipe_context *_pipe,
 496                              uint shader,
 497                              uint index,
 498                              struct pipe_resource *_resource)
 499 {
 500    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 501    struct pipe_context *pipe = glhd_pipe->pipe;
 502    struct pipe_resource *unwrapped_resource;
 503    struct pipe_resource *resource = NULL;
 504
 505    /* XXX hmm? unwrap the input state */
 506    if (_resource) {
 507       unwrapped_resource = galahad_resource_unwrap(_resource);
 508       resource = unwrapped_resource;
 509    }
 510
 511    pipe->set_constant_buffer(pipe,
 512                              shader,
 513                              index,
 514                              resource);
 515 }
 516
 517 static void
 518 galahad_set_framebuffer_state(struct pipe_context *_pipe,
 519                                const struct pipe_framebuffer_state *_state)
 520 {
 521    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 522    struct pipe_context *pipe = glhd_pipe->pipe;
 523    struct pipe_framebuffer_state unwrapped_state;
 524    struct pipe_framebuffer_state *state = NULL;
 525    unsigned i;
 526
 527    if (_state->nr_cbufs > PIPE_MAX_COLOR_BUFS) {
 528       glhd_error("%d render targets bound, but only %d are permitted by API",
 529          _state->nr_cbufs, PIPE_MAX_COLOR_BUFS);
 530    } else if (_state->nr_cbufs >
 531       pipe->screen->get_param(pipe->screen, PIPE_CAP_MAX_RENDER_TARGETS)) {
 532       glhd_warn("%d render targets bound, but only %d are supported",
 533          _state->nr_cbufs,
 534          pipe->screen->get_param(pipe->screen, PIPE_CAP_MAX_RENDER_TARGETS));
 535    }
 536
 537    /* unwrap the input state */
 538    if (_state) {
 539       memcpy(&unwrapped_state, _state, sizeof(unwrapped_state));
 540       for(i = 0; i < _state->nr_cbufs; i++)
 541          unwrapped_state.cbufs[i] = galahad_surface_unwrap(_state->cbufs[i]);
 542       for (; i < PIPE_MAX_COLOR_BUFS; i++)
 543          unwrapped_state.cbufs[i] = NULL;
 544       unwrapped_state.zsbuf = galahad_surface_unwrap(_state->zsbuf);
 545       state = &unwrapped_state;
 546    }
 547
 548    pipe->set_framebuffer_state(pipe,
 549                                state);
 550 }
 551
 552 static void
 553 galahad_set_polygon_stipple(struct pipe_context *_pipe,
 554                              const struct pipe_poly_stipple *poly_stipple)
 555 {
 556    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 557    struct pipe_context *pipe = glhd_pipe->pipe;
 558
 559    pipe->set_polygon_stipple(pipe,
 560                              poly_stipple);
 561 }
 562
 563 static void
 564 galahad_set_scissor_state(struct pipe_context *_pipe,
 565                            const struct pipe_scissor_state *scissor)
 566 {
 567    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 568    struct pipe_context *pipe = glhd_pipe->pipe;
 569
 570    pipe->set_scissor_state(pipe,
 571                            scissor);
 572 }
 573
 574 static void
 575 galahad_set_viewport_state(struct pipe_context *_pipe,
 576                             const struct pipe_viewport_state *viewport)
 577 {
 578    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 579    struct pipe_context *pipe = glhd_pipe->pipe;
 580
 581    pipe->set_viewport_state(pipe,
 582                             viewport);
 583 }
 584
 585 static void
 586 galahad_set_fragment_sampler_views(struct pipe_context *_pipe,
 587                                     unsigned num,
 588                                     struct pipe_sampler_view **_views)
 589 {
 590    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 591    struct pipe_context *pipe = glhd_pipe->pipe;
 592    struct pipe_sampler_view *unwrapped_views[PIPE_MAX_SAMPLERS];
 593    struct pipe_sampler_view **views = NULL;
 594    unsigned i;
 595
 596    if (_views) {
 597       for (i = 0; i < num; i++)
 598          unwrapped_views[i] = galahad_sampler_view_unwrap(_views[i]);
 599       for (; i < PIPE_MAX_SAMPLERS; i++)
 600          unwrapped_views[i] = NULL;
 601
 602       views = unwrapped_views;
 603    }
 604
 605    pipe->set_fragment_sampler_views(pipe, num, views);
 606 }
 607
 608 static void
 609 galahad_set_vertex_sampler_views(struct pipe_context *_pipe,
 610                                   unsigned num,
 611                                   struct pipe_sampler_view **_views)
 612 {
 613    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 614    struct pipe_context *pipe = glhd_pipe->pipe;
 615    struct pipe_sampler_view *unwrapped_views[PIPE_MAX_VERTEX_SAMPLERS];
 616    struct pipe_sampler_view **views = NULL;
 617    unsigned i;
 618
 619    if (_views) {
 620       for (i = 0; i < num; i++)
 621          unwrapped_views[i] = galahad_sampler_view_unwrap(_views[i]);
 622       for (; i < PIPE_MAX_VERTEX_SAMPLERS; i++)
 623          unwrapped_views[i] = NULL;
 624
 625       views = unwrapped_views;
 626    }
 627
 628    pipe->set_vertex_sampler_views(pipe, num, views);
 629 }
 630
 631 static void
 632 galahad_set_vertex_buffers(struct pipe_context *_pipe,
 633                             unsigned num_buffers,
 634                             const struct pipe_vertex_buffer *_buffers)
 635 {
 636    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 637    struct pipe_context *pipe = glhd_pipe->pipe;
 638    struct pipe_vertex_buffer unwrapped_buffers[PIPE_MAX_SHADER_INPUTS];
 639    struct pipe_vertex_buffer *buffers = NULL;
 640    unsigned i;
 641
 642    if (num_buffers) {
 643       memcpy(unwrapped_buffers, _buffers, num_buffers * sizeof(*_buffers));
 644       for (i = 0; i < num_buffers; i++)
 645          unwrapped_buffers[i].buffer = galahad_resource_unwrap(_buffers[i].buffer);
 646       buffers = unwrapped_buffers;
 647    }
 648
 649    pipe->set_vertex_buffers(pipe,
 650                             num_buffers,
 651                             buffers);
 652 }
 653 static void
 654 galahad_resource_copy_region(struct pipe_context *_pipe,
 655                               struct pipe_resource *_dst,
 656                               struct pipe_subresource subdst,
 657                               unsigned dstx,
 658                               unsigned dsty,
 659                               unsigned dstz,
 660                               struct pipe_resource *_src,
 661                               struct pipe_subresource subsrc,
 662                               unsigned srcx,
 663                               unsigned srcy,
 664                               unsigned srcz,
 665                               unsigned width,
 666                               unsigned height)
 667 {
 668    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 669    struct galahad_resource *glhd_resource_dst = galahad_resource(_dst);
 670    struct galahad_resource *glhd_resource_src = galahad_resource(_src);
 671    struct pipe_context *pipe = glhd_pipe->pipe;
 672    struct pipe_resource *dst = glhd_resource_dst->resource;
 673    struct pipe_resource *src = glhd_resource_src->resource;
 674
 675    if (_dst->format != _src->format) {
 676       glhd_warn("Format mismatch: Source is %s, destination is %s",
 677          util_format_short_name(_src->format),
 678          util_format_short_name(_dst->format));
 679    }
 680
 681    pipe->resource_copy_region(pipe,
 682                               dst,
 683                               subdst,
 684                               dstx,
 685                               dsty,
 686                               dstz,
 687                               src,
 688                               subsrc,
 689                               srcx,
 690                               srcy,
 691                               srcz,
 692                               width,
 693                               height);
 694 }
 695
 696 static void
 697 galahad_clear(struct pipe_context *_pipe,
 698                unsigned buffers,
 699                const float *rgba,
 700                double depth,
 701                unsigned stencil)
 702 {
 703    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 704    struct pipe_context *pipe = glhd_pipe->pipe;
 705
 706    pipe->clear(pipe,
 707                buffers,
 708                rgba,
 709                depth,
 710                stencil);
 711 }
 712
 713 static void
 714 galahad_clear_render_target(struct pipe_context *_pipe,
 715                              struct pipe_surface *_dst,
 716                              const float *rgba,
 717                              unsigned dstx, unsigned dsty,
 718                              unsigned width, unsigned height)
 719 {
 720    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 721    struct galahad_surface *glhd_surface_dst = galahad_surface(_dst);
 722    struct pipe_context *pipe = glhd_pipe->pipe;
 723    struct pipe_surface *dst = glhd_surface_dst->surface;
 724
 725    pipe->clear_render_target(pipe,
 726                              dst,
 727                              rgba,
 728                              dstx,
 729                              dsty,
 730                              width,
 731                              height);
 732 }
 733 static void
 734 galahad_clear_depth_stencil(struct pipe_context *_pipe,
 735                              struct pipe_surface *_dst,
 736                              unsigned clear_flags,
 737                              double depth,
 738                              unsigned stencil,
 739                              unsigned dstx, unsigned dsty,
 740                              unsigned width, unsigned height)
 741 {
 742    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 743    struct galahad_surface *glhd_surface_dst = galahad_surface(_dst);
 744    struct pipe_context *pipe = glhd_pipe->pipe;
 745    struct pipe_surface *dst = glhd_surface_dst->surface;
 746
 747    pipe->clear_depth_stencil(pipe,
 748                              dst,
 749                              clear_flags,
 750                              depth,
 751                              stencil,
 752                              dstx,
 753                              dsty,
 754                              width,
 755                              height);
 756
 757 }
 758
 759 static void
 760 galahad_flush(struct pipe_context *_pipe,
 761                unsigned flags,
 762                struct pipe_fence_handle **fence)
 763 {
 764    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 765    struct pipe_context *pipe = glhd_pipe->pipe;
 766
 767    pipe->flush(pipe,
 768                flags,
 769                fence);
 770 }
 771
 772 static unsigned int
 773 galahad_is_resource_referenced(struct pipe_context *_pipe,
 774                                 struct pipe_resource *_resource,
 775                                 unsigned face,
 776                                 unsigned level)
 777 {
 778    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 779    struct galahad_resource *glhd_resource = galahad_resource(_resource);
 780    struct pipe_context *pipe = glhd_pipe->pipe;
 781    struct pipe_resource *resource = glhd_resource->resource;
 782
 783    return pipe->is_resource_referenced(pipe,
 784                                        resource,
 785                                        face,
 786                                        level);
 787 }
 788
 789 static struct pipe_sampler_view *
 790 galahad_context_create_sampler_view(struct pipe_context *_pipe,
 791                                      struct pipe_resource *_resource,
 792                                      const struct pipe_sampler_view *templ)
 793 {
 794    struct galahad_context *glhd_context = galahad_context(_pipe);
 795    struct galahad_resource *glhd_resource = galahad_resource(_resource);
 796    struct pipe_context *pipe = glhd_context->pipe;
 797    struct pipe_resource *resource = glhd_resource->resource;
 798    struct pipe_sampler_view *result;
 799
 800    result = pipe->create_sampler_view(pipe,
 801                                       resource,
 802                                       templ);
 803
 804    if (result)
 805       return galahad_sampler_view_create(glhd_context, glhd_resource, result);
 806    return NULL;
 807 }
 808
 809 static void
 810 galahad_context_sampler_view_destroy(struct pipe_context *_pipe,
 811                                       struct pipe_sampler_view *_view)
 812 {
 813    galahad_sampler_view_destroy(galahad_context(_pipe),
 814                                  galahad_sampler_view(_view));
 815 }
 816
 817 static struct pipe_transfer *
 818 galahad_context_get_transfer(struct pipe_context *_context,
 819                               struct pipe_resource *_resource,
 820                               struct pipe_subresource sr,
 821                               unsigned usage,
 822                               const struct pipe_box *box)
 823 {
 824    struct galahad_context *glhd_context = galahad_context(_context);
 825    struct galahad_resource *glhd_resource = galahad_resource(_resource);
 826    struct pipe_context *context = glhd_context->pipe;
 827    struct pipe_resource *resource = glhd_resource->resource;
 828    struct pipe_transfer *result;
 829
 830    result = context->get_transfer(context,
 831                                   resource,
 832                                   sr,
 833                                   usage,
 834                                   box);
 835
 836    if (result)
 837       return galahad_transfer_create(glhd_context, glhd_resource, result);
 838    return NULL;
 839 }
 840
 841 static void
 842 galahad_context_transfer_destroy(struct pipe_context *_pipe,
 843                                   struct pipe_transfer *_transfer)
 844 {
 845    galahad_transfer_destroy(galahad_context(_pipe),
 846                              galahad_transfer(_transfer));
 847 }
 848
 849 static void *
 850 galahad_context_transfer_map(struct pipe_context *_context,
 851                               struct pipe_transfer *_transfer)
 852 {
 853    struct galahad_context *glhd_context = galahad_context(_context);
 854    struct galahad_transfer *glhd_transfer = galahad_transfer(_transfer);
 855    struct pipe_context *context = glhd_context->pipe;
 856    struct pipe_transfer *transfer = glhd_transfer->transfer;
 857
 858    return context->transfer_map(context,
 859                                 transfer);
 860 }
 861
 862
 863
 864 static void
 865 galahad_context_transfer_flush_region(struct pipe_context *_context,
 866                                        struct pipe_transfer *_transfer,
 867                                        const struct pipe_box *box)
 868 {
 869    struct galahad_context *glhd_context = galahad_context(_context);
 870    struct galahad_transfer *glhd_transfer = galahad_transfer(_transfer);
 871    struct pipe_context *context = glhd_context->pipe;
 872    struct pipe_transfer *transfer = glhd_transfer->transfer;
 873
 874    context->transfer_flush_region(context,
 875                                   transfer,
 876                                   box);
 877 }
 878
 879
 880 static void
 881 galahad_context_transfer_unmap(struct pipe_context *_context,
 882                                 struct pipe_transfer *_transfer)
 883 {
 884    struct galahad_context *glhd_context = galahad_context(_context);
 885    struct galahad_transfer *glhd_transfer = galahad_transfer(_transfer);
 886    struct pipe_context *context = glhd_context->pipe;
 887    struct pipe_transfer *transfer = glhd_transfer->transfer;
 888
 889    context->transfer_unmap(context,
 890                            transfer);
 891 }
 892
 893
 894 static void
 895 galahad_context_transfer_inline_write(struct pipe_context *_context,
 896                                        struct pipe_resource *_resource,
 897                                        struct pipe_subresource sr,
 898                                        unsigned usage,
 899                                        const struct pipe_box *box,
 900                                        const void *data,
 901                                        unsigned stride,
 902                                        unsigned slice_stride)
 903 {
 904    struct galahad_context *glhd_context = galahad_context(_context);
 905    struct galahad_resource *glhd_resource = galahad_resource(_resource);
 906    struct pipe_context *context = glhd_context->pipe;
 907    struct pipe_resource *resource = glhd_resource->resource;
 908
 909    context->transfer_inline_write(context,
 910                                   resource,
 911                                   sr,
 912                                   usage,
 913                                   box,
 914                                   data,
 915                                   stride,
 916                                   slice_stride);
 917 }
 918
 919
 920 struct pipe_context *
 921 galahad_context_create(struct pipe_screen *_screen, struct pipe_context *pipe)
 922 {
 923    struct galahad_context *glhd_pipe;
 924    (void)galahad_screen(_screen);
 925
 926    glhd_pipe = CALLOC_STRUCT(galahad_context);
 927    if (!glhd_pipe) {
 928       return NULL;
 929    }
 930
 931    glhd_pipe->base.winsys = NULL;
 932    glhd_pipe->base.screen = _screen;
 933    glhd_pipe->base.priv = pipe->priv; /* expose wrapped data */
 934    glhd_pipe->base.draw = NULL;
 935
 936    glhd_pipe->base.destroy = galahad_destroy;
 937    glhd_pipe->base.draw_arrays = galahad_draw_arrays;
 938    glhd_pipe->base.draw_elements = galahad_draw_elements;
 939    glhd_pipe->base.draw_range_elements = galahad_draw_range_elements;
 940    glhd_pipe->base.create_query = galahad_create_query;
 941    glhd_pipe->base.destroy_query = galahad_destroy_query;
 942    glhd_pipe->base.begin_query = galahad_begin_query;
 943    glhd_pipe->base.end_query = galahad_end_query;
 944    glhd_pipe->base.get_query_result = galahad_get_query_result;
 945    glhd_pipe->base.create_blend_state = galahad_create_blend_state;
 946    glhd_pipe->base.bind_blend_state = galahad_bind_blend_state;
 947    glhd_pipe->base.delete_blend_state = galahad_delete_blend_state;
 948    glhd_pipe->base.create_sampler_state = galahad_create_sampler_state;
 949    glhd_pipe->base.bind_fragment_sampler_states = galahad_bind_fragment_sampler_states;
 950    glhd_pipe->base.bind_vertex_sampler_states = galahad_bind_vertex_sampler_states;
 951    glhd_pipe->base.delete_sampler_state = galahad_delete_sampler_state;
 952    glhd_pipe->base.create_rasterizer_state = galahad_create_rasterizer_state;
 953    glhd_pipe->base.bind_rasterizer_state = galahad_bind_rasterizer_state;
 954    glhd_pipe->base.delete_rasterizer_state = galahad_delete_rasterizer_state;
 955    glhd_pipe->base.create_depth_stencil_alpha_state = galahad_create_depth_stencil_alpha_state;
 956    glhd_pipe->base.bind_depth_stencil_alpha_state = galahad_bind_depth_stencil_alpha_state;
 957    glhd_pipe->base.delete_depth_stencil_alpha_state = galahad_delete_depth_stencil_alpha_state;
 958    glhd_pipe->base.create_fs_state = galahad_create_fs_state;
 959    glhd_pipe->base.bind_fs_state = galahad_bind_fs_state;
 960    glhd_pipe->base.delete_fs_state = galahad_delete_fs_state;
 961    glhd_pipe->base.create_vs_state = galahad_create_vs_state;
 962    glhd_pipe->base.bind_vs_state = galahad_bind_vs_state;
 963    glhd_pipe->base.delete_vs_state = galahad_delete_vs_state;
 964    glhd_pipe->base.create_vertex_elements_state = galahad_create_vertex_elements_state;
 965    glhd_pipe->base.bind_vertex_elements_state = galahad_bind_vertex_elements_state;
 966    glhd_pipe->base.delete_vertex_elements_state = galahad_delete_vertex_elements_state;
 967    glhd_pipe->base.set_blend_color = galahad_set_blend_color;
 968    glhd_pipe->base.set_stencil_ref = galahad_set_stencil_ref;
 969    glhd_pipe->base.set_clip_state = galahad_set_clip_state;
 970    glhd_pipe->base.set_sample_mask = galahad_set_sample_mask;
 971    glhd_pipe->base.set_constant_buffer = galahad_set_constant_buffer;
 972    glhd_pipe->base.set_framebuffer_state = galahad_set_framebuffer_state;
 973    glhd_pipe->base.set_polygon_stipple = galahad_set_polygon_stipple;
 974    glhd_pipe->base.set_scissor_state = galahad_set_scissor_state;
 975    glhd_pipe->base.set_viewport_state = galahad_set_viewport_state;
 976    glhd_pipe->base.set_fragment_sampler_views = galahad_set_fragment_sampler_views;
 977    glhd_pipe->base.set_vertex_sampler_views = galahad_set_vertex_sampler_views;
 978    glhd_pipe->base.set_vertex_buffers = galahad_set_vertex_buffers;
 979    glhd_pipe->base.resource_copy_region = galahad_resource_copy_region;
 980    glhd_pipe->base.clear = galahad_clear;
 981    glhd_pipe->base.clear_render_target = galahad_clear_render_target;
 982    glhd_pipe->base.clear_depth_stencil = galahad_clear_depth_stencil;
 983    glhd_pipe->base.flush = galahad_flush;
 984    glhd_pipe->base.is_resource_referenced = galahad_is_resource_referenced;
 985    glhd_pipe->base.create_sampler_view = galahad_context_create_sampler_view;
 986    glhd_pipe->base.sampler_view_destroy = galahad_context_sampler_view_destroy;
 987    glhd_pipe->base.get_transfer = galahad_context_get_transfer;
 988    glhd_pipe->base.transfer_destroy = galahad_context_transfer_destroy;
 989    glhd_pipe->base.transfer_map = galahad_context_transfer_map;
 990    glhd_pipe->base.transfer_unmap = galahad_context_transfer_unmap;
 991    glhd_pipe->base.transfer_flush_region = galahad_context_transfer_flush_region;
 992    glhd_pipe->base.transfer_inline_write = galahad_context_transfer_inline_write;
 993
 994    glhd_pipe->pipe = pipe;
 995
 996    return &glhd_pipe->base;
 997 }