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_vbo(struct pipe_context *_pipe,
  52                  const struct pipe_draw_info *info)
  53 {
  54    struct galahad_context *glhd_pipe = galahad_context(_pipe);
  55    struct pipe_context *pipe = glhd_pipe->pipe;
  56
  57    /* XXX we should check that all bound resources are unmapped
  58     * before drawing.
  59     */
  60
  61    pipe->draw_vbo(pipe, info);
  62 }
  63
  64 static struct pipe_query *
  65 galahad_create_query(struct pipe_context *_pipe,
  66                       unsigned query_type)
  67 {
  68    struct galahad_context *glhd_pipe = galahad_context(_pipe);
  69    struct pipe_context *pipe = glhd_pipe->pipe;
  70
  71    if (query_type == PIPE_QUERY_OCCLUSION_COUNTER &&
  72       !pipe->screen->get_param(pipe->screen, PIPE_CAP_OCCLUSION_QUERY)) {
  73       glhd_error("Occlusion query requested but not supported");
  74    }
  75
  76    if (query_type == PIPE_QUERY_TIME_ELAPSED &&
  77       !pipe->screen->get_param(pipe->screen, PIPE_CAP_TIMER_QUERY)) {
  78       glhd_error("Timer query requested but not supported");
  79    }
  80
  81    return pipe->create_query(pipe,
  82                              query_type);
  83 }
  84
  85 static void
  86 galahad_destroy_query(struct pipe_context *_pipe,
  87                        struct pipe_query *query)
  88 {
  89    struct galahad_context *glhd_pipe = galahad_context(_pipe);
  90    struct pipe_context *pipe = glhd_pipe->pipe;
  91
  92    pipe->destroy_query(pipe,
  93                        query);
  94 }
  95
  96 static void
  97 galahad_begin_query(struct pipe_context *_pipe,
  98                      struct pipe_query *query)
  99 {
 100    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 101    struct pipe_context *pipe = glhd_pipe->pipe;
 102
 103    pipe->begin_query(pipe,
 104                      query);
 105 }
 106
 107 static void
 108 galahad_end_query(struct pipe_context *_pipe,
 109                    struct pipe_query *query)
 110 {
 111    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 112    struct pipe_context *pipe = glhd_pipe->pipe;
 113
 114    pipe->end_query(pipe,
 115                    query);
 116 }
 117
 118 static boolean
 119 galahad_get_query_result(struct pipe_context *_pipe,
 120                           struct pipe_query *query,
 121                           boolean wait,
 122                           union pipe_query_result *result)
 123 {
 124    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 125    struct pipe_context *pipe = glhd_pipe->pipe;
 126
 127    return pipe->get_query_result(pipe,
 128                                  query,
 129                                  wait,
 130                                  result);
 131 }
 132
 133 static void *
 134 galahad_create_blend_state(struct pipe_context *_pipe,
 135                             const struct pipe_blend_state *blend)
 136 {
 137    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 138    struct pipe_context *pipe = glhd_pipe->pipe;
 139
 140    if (blend->logicop_enable) {
 141       if (blend->rt[0].blend_enable) {
 142          glhd_warn("Blending enabled for render target 0, but logicops "
 143             "are enabled");
 144       }
 145    }
 146
 147    return pipe->create_blend_state(pipe,
 148                                    blend);
 149 }
 150
 151 static void
 152 galahad_bind_blend_state(struct pipe_context *_pipe,
 153                           void *blend)
 154 {
 155    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 156    struct pipe_context *pipe = glhd_pipe->pipe;
 157
 158    pipe->bind_blend_state(pipe,
 159                               blend);
 160 }
 161
 162 static void
 163 galahad_delete_blend_state(struct pipe_context *_pipe,
 164                             void *blend)
 165 {
 166    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 167    struct pipe_context *pipe = glhd_pipe->pipe;
 168
 169    pipe->delete_blend_state(pipe,
 170                             blend);
 171 }
 172
 173 static void *
 174 galahad_create_sampler_state(struct pipe_context *_pipe,
 175                               const struct pipe_sampler_state *sampler)
 176 {
 177    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 178    struct pipe_context *pipe = glhd_pipe->pipe;
 179
 180    return pipe->create_sampler_state(pipe,
 181                                      sampler);
 182 }
 183
 184 static void
 185 galahad_bind_fragment_sampler_states(struct pipe_context *_pipe,
 186                                       unsigned num_samplers,
 187                                       void **samplers)
 188 {
 189    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 190    struct pipe_context *pipe = glhd_pipe->pipe;
 191
 192    if (num_samplers > PIPE_MAX_SAMPLERS) {
 193       glhd_error("%u fragment samplers requested, "
 194          "but only %u are permitted by API",
 195          num_samplers, PIPE_MAX_SAMPLERS);
 196    }
 197
 198    pipe->bind_fragment_sampler_states(pipe,
 199                                       num_samplers,
 200                                       samplers);
 201 }
 202
 203 static void
 204 galahad_bind_vertex_sampler_states(struct pipe_context *_pipe,
 205                                     unsigned num_samplers,
 206                                     void **samplers)
 207 {
 208    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 209    struct pipe_context *pipe = glhd_pipe->pipe;
 210
 211    if (num_samplers > PIPE_MAX_VERTEX_SAMPLERS) {
 212       glhd_error("%u vertex samplers requested, "
 213          "but only %u are permitted by API",
 214          num_samplers, PIPE_MAX_VERTEX_SAMPLERS);
 215    }
 216
 217    pipe->bind_vertex_sampler_states(pipe,
 218                                     num_samplers,
 219                                     samplers);
 220 }
 221
 222 static void
 223 galahad_delete_sampler_state(struct pipe_context *_pipe,
 224                               void *sampler)
 225 {
 226    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 227    struct pipe_context *pipe = glhd_pipe->pipe;
 228
 229    pipe->delete_sampler_state(pipe,
 230                               sampler);
 231 }
 232
 233 static void *
 234 galahad_create_rasterizer_state(struct pipe_context *_pipe,
 235                                  const struct pipe_rasterizer_state *rasterizer)
 236 {
 237    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 238    struct pipe_context *pipe = glhd_pipe->pipe;
 239
 240    if (rasterizer->point_quad_rasterization) {
 241        if (rasterizer->point_smooth) {
 242            glhd_warn("Point smoothing requested but ignored");
 243        }
 244    } else {
 245        if (rasterizer->sprite_coord_enable) {
 246            glhd_warn("Point sprites requested but ignored");
 247        }
 248    }
 249
 250    return pipe->create_rasterizer_state(pipe,
 251                                         rasterizer);
 252 }
 253
 254 static void
 255 galahad_bind_rasterizer_state(struct pipe_context *_pipe,
 256                                void *rasterizer)
 257 {
 258    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 259    struct pipe_context *pipe = glhd_pipe->pipe;
 260
 261    pipe->bind_rasterizer_state(pipe,
 262                                rasterizer);
 263 }
 264
 265 static void
 266 galahad_delete_rasterizer_state(struct pipe_context *_pipe,
 267                                  void *rasterizer)
 268 {
 269    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 270    struct pipe_context *pipe = glhd_pipe->pipe;
 271
 272    pipe->delete_rasterizer_state(pipe,
 273                                  rasterizer);
 274 }
 275
 276 static void *
 277 galahad_create_depth_stencil_alpha_state(struct pipe_context *_pipe,
 278                                           const struct pipe_depth_stencil_alpha_state *depth_stencil_alpha)
 279 {
 280    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 281    struct pipe_context *pipe = glhd_pipe->pipe;
 282
 283    return pipe->create_depth_stencil_alpha_state(pipe,
 284                                                  depth_stencil_alpha);
 285 }
 286
 287 static void
 288 galahad_bind_depth_stencil_alpha_state(struct pipe_context *_pipe,
 289                                         void *depth_stencil_alpha)
 290 {
 291    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 292    struct pipe_context *pipe = glhd_pipe->pipe;
 293
 294    pipe->bind_depth_stencil_alpha_state(pipe,
 295                                         depth_stencil_alpha);
 296 }
 297
 298 static void
 299 galahad_delete_depth_stencil_alpha_state(struct pipe_context *_pipe,
 300                                           void *depth_stencil_alpha)
 301 {
 302    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 303    struct pipe_context *pipe = glhd_pipe->pipe;
 304
 305    pipe->delete_depth_stencil_alpha_state(pipe,
 306                                           depth_stencil_alpha);
 307 }
 308
 309 static void *
 310 galahad_create_fs_state(struct pipe_context *_pipe,
 311                          const struct pipe_shader_state *fs)
 312 {
 313    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 314    struct pipe_context *pipe = glhd_pipe->pipe;
 315
 316    return pipe->create_fs_state(pipe,
 317                                 fs);
 318 }
 319
 320 static void
 321 galahad_bind_fs_state(struct pipe_context *_pipe,
 322                        void *fs)
 323 {
 324    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 325    struct pipe_context *pipe = glhd_pipe->pipe;
 326
 327    pipe->bind_fs_state(pipe,
 328                        fs);
 329 }
 330
 331 static void
 332 galahad_delete_fs_state(struct pipe_context *_pipe,
 333                          void *fs)
 334 {
 335    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 336    struct pipe_context *pipe = glhd_pipe->pipe;
 337
 338    pipe->delete_fs_state(pipe,
 339                          fs);
 340 }
 341
 342 static void *
 343 galahad_create_vs_state(struct pipe_context *_pipe,
 344                          const struct pipe_shader_state *vs)
 345 {
 346    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 347    struct pipe_context *pipe = glhd_pipe->pipe;
 348
 349    return pipe->create_vs_state(pipe,
 350                                 vs);
 351 }
 352
 353 static void
 354 galahad_bind_vs_state(struct pipe_context *_pipe,
 355                        void *vs)
 356 {
 357    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 358    struct pipe_context *pipe = glhd_pipe->pipe;
 359
 360    pipe->bind_vs_state(pipe,
 361                        vs);
 362 }
 363
 364 static void
 365 galahad_delete_vs_state(struct pipe_context *_pipe,
 366                          void *vs)
 367 {
 368    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 369    struct pipe_context *pipe = glhd_pipe->pipe;
 370
 371    pipe->delete_vs_state(pipe,
 372                          vs);
 373 }
 374
 375
 376 static void *
 377 galahad_create_vertex_elements_state(struct pipe_context *_pipe,
 378                                       unsigned num_elements,
 379                                       const struct pipe_vertex_element *vertex_elements)
 380 {
 381    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 382    struct pipe_context *pipe = glhd_pipe->pipe;
 383
 384    /* XXX check if stride lines up with element size, at least for floats */
 385
 386    return pipe->create_vertex_elements_state(pipe,
 387                                              num_elements,
 388                                              vertex_elements);
 389 }
 390
 391 static void
 392 galahad_bind_vertex_elements_state(struct pipe_context *_pipe,
 393                                     void *velems)
 394 {
 395    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 396    struct pipe_context *pipe = glhd_pipe->pipe;
 397
 398    pipe->bind_vertex_elements_state(pipe,
 399                                     velems);
 400 }
 401
 402 static void
 403 galahad_delete_vertex_elements_state(struct pipe_context *_pipe,
 404                                       void *velems)
 405 {
 406    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 407    struct pipe_context *pipe = glhd_pipe->pipe;
 408
 409    pipe->delete_vertex_elements_state(pipe,
 410                                       velems);
 411 }
 412
 413 static void
 414 galahad_set_blend_color(struct pipe_context *_pipe,
 415                          const struct pipe_blend_color *blend_color)
 416 {
 417    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 418    struct pipe_context *pipe = glhd_pipe->pipe;
 419
 420    pipe->set_blend_color(pipe,
 421                          blend_color);
 422 }
 423
 424 static void
 425 galahad_set_stencil_ref(struct pipe_context *_pipe,
 426                          const struct pipe_stencil_ref *stencil_ref)
 427 {
 428    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 429    struct pipe_context *pipe = glhd_pipe->pipe;
 430
 431    pipe->set_stencil_ref(pipe,
 432                          stencil_ref);
 433 }
 434
 435 static void
 436 galahad_set_clip_state(struct pipe_context *_pipe,
 437                         const struct pipe_clip_state *clip)
 438 {
 439    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 440    struct pipe_context *pipe = glhd_pipe->pipe;
 441
 442    pipe->set_clip_state(pipe,
 443                         clip);
 444 }
 445
 446 static void
 447 galahad_set_sample_mask(struct pipe_context *_pipe,
 448                          unsigned sample_mask)
 449 {
 450    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 451    struct pipe_context *pipe = glhd_pipe->pipe;
 452
 453    pipe->set_sample_mask(pipe,
 454                          sample_mask);
 455 }
 456
 457 static void
 458 galahad_set_constant_buffer(struct pipe_context *_pipe,
 459                              uint shader,
 460                              uint index,
 461                              struct pipe_constant_buffer *_cb)
 462 {
 463    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 464    struct pipe_context *pipe = glhd_pipe->pipe;
 465    struct pipe_constant_buffer cb;
 466
 467    if (shader >= PIPE_SHADER_TYPES) {
 468       glhd_error("Unknown shader type %u", shader);
 469    }
 470
 471    if (index &&
 472       index >=
 473          pipe->screen->get_shader_param(pipe->screen, shader, PIPE_SHADER_CAP_MAX_CONST_BUFFERS)) {
 474       glhd_error("Access to constant buffer %u requested, "
 475          "but only %d are supported",
 476          index,
 477          pipe->screen->get_shader_param(pipe->screen, shader, PIPE_SHADER_CAP_MAX_CONST_BUFFERS));
 478    }
 479
 480    /* XXX hmm? unwrap the input state */
 481    if (_cb) {
 482       cb = *_cb;
 483       cb.buffer = galahad_resource_unwrap(_cb->buffer);
 484    }
 485
 486    pipe->set_constant_buffer(pipe,
 487                              shader,
 488                              index,
 489                              _cb ? &cb : NULL);
 490 }
 491
 492 static void
 493 galahad_set_framebuffer_state(struct pipe_context *_pipe,
 494                                const struct pipe_framebuffer_state *_state)
 495 {
 496    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 497    struct pipe_context *pipe = glhd_pipe->pipe;
 498    struct pipe_framebuffer_state unwrapped_state;
 499    struct pipe_framebuffer_state *state = NULL;
 500    unsigned i;
 501
 502    if (_state->nr_cbufs > PIPE_MAX_COLOR_BUFS) {
 503       glhd_error("%d render targets bound, but only %d are permitted by API",
 504          _state->nr_cbufs, PIPE_MAX_COLOR_BUFS);
 505    } else if (_state->nr_cbufs >
 506       pipe->screen->get_param(pipe->screen, PIPE_CAP_MAX_RENDER_TARGETS)) {
 507       glhd_warn("%d render targets bound, but only %d are supported",
 508          _state->nr_cbufs,
 509          pipe->screen->get_param(pipe->screen, PIPE_CAP_MAX_RENDER_TARGETS));
 510    }
 511
 512    /* unwrap the input state */
 513    if (_state) {
 514       memcpy(&unwrapped_state, _state, sizeof(unwrapped_state));
 515       for(i = 0; i < _state->nr_cbufs; i++)
 516          unwrapped_state.cbufs[i] = galahad_surface_unwrap(_state->cbufs[i]);
 517       for (; i < PIPE_MAX_COLOR_BUFS; i++)
 518          unwrapped_state.cbufs[i] = NULL;
 519       unwrapped_state.zsbuf = galahad_surface_unwrap(_state->zsbuf);
 520       state = &unwrapped_state;
 521    }
 522
 523    pipe->set_framebuffer_state(pipe,
 524                                state);
 525 }
 526
 527 static void
 528 galahad_set_polygon_stipple(struct pipe_context *_pipe,
 529                              const struct pipe_poly_stipple *poly_stipple)
 530 {
 531    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 532    struct pipe_context *pipe = glhd_pipe->pipe;
 533
 534    pipe->set_polygon_stipple(pipe,
 535                              poly_stipple);
 536 }
 537
 538 static void
 539 galahad_set_scissor_state(struct pipe_context *_pipe,
 540                            const struct pipe_scissor_state *scissor)
 541 {
 542    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 543    struct pipe_context *pipe = glhd_pipe->pipe;
 544
 545    pipe->set_scissor_state(pipe,
 546                            scissor);
 547 }
 548
 549 static void
 550 galahad_set_viewport_state(struct pipe_context *_pipe,
 551                             const struct pipe_viewport_state *viewport)
 552 {
 553    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 554    struct pipe_context *pipe = glhd_pipe->pipe;
 555
 556    pipe->set_viewport_state(pipe,
 557                             viewport);
 558 }
 559
 560 static void
 561 galahad_set_fragment_sampler_views(struct pipe_context *_pipe,
 562                                     unsigned num,
 563                                     struct pipe_sampler_view **_views)
 564 {
 565    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 566    struct pipe_context *pipe = glhd_pipe->pipe;
 567    struct pipe_sampler_view *unwrapped_views[PIPE_MAX_SAMPLERS];
 568    struct pipe_sampler_view **views = NULL;
 569    unsigned i;
 570
 571    if (_views) {
 572       for (i = 0; i < num; i++)
 573          unwrapped_views[i] = galahad_sampler_view_unwrap(_views[i]);
 574       for (; i < PIPE_MAX_SAMPLERS; i++)
 575          unwrapped_views[i] = NULL;
 576
 577       views = unwrapped_views;
 578    }
 579
 580    pipe->set_fragment_sampler_views(pipe, num, views);
 581 }
 582
 583 static void
 584 galahad_set_vertex_sampler_views(struct pipe_context *_pipe,
 585                                   unsigned num,
 586                                   struct pipe_sampler_view **_views)
 587 {
 588    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 589    struct pipe_context *pipe = glhd_pipe->pipe;
 590    struct pipe_sampler_view *unwrapped_views[PIPE_MAX_VERTEX_SAMPLERS];
 591    struct pipe_sampler_view **views = NULL;
 592    unsigned i;
 593
 594    if (_views) {
 595       for (i = 0; i < num; i++)
 596          unwrapped_views[i] = galahad_sampler_view_unwrap(_views[i]);
 597       for (; i < PIPE_MAX_VERTEX_SAMPLERS; i++)
 598          unwrapped_views[i] = NULL;
 599
 600       views = unwrapped_views;
 601    }
 602
 603    pipe->set_vertex_sampler_views(pipe, num, views);
 604 }
 605
 606 static void
 607 galahad_set_vertex_buffers(struct pipe_context *_pipe,
 608                             unsigned num_buffers,
 609                             const struct pipe_vertex_buffer *_buffers)
 610 {
 611    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 612    struct pipe_context *pipe = glhd_pipe->pipe;
 613    struct pipe_vertex_buffer unwrapped_buffers[PIPE_MAX_SHADER_INPUTS];
 614    struct pipe_vertex_buffer *buffers = NULL;
 615    unsigned i;
 616
 617    if (num_buffers) {
 618       memcpy(unwrapped_buffers, _buffers, num_buffers * sizeof(*_buffers));
 619       for (i = 0; i < num_buffers; i++)
 620          unwrapped_buffers[i].buffer = galahad_resource_unwrap(_buffers[i].buffer);
 621       buffers = unwrapped_buffers;
 622    }
 623
 624    pipe->set_vertex_buffers(pipe,
 625                             num_buffers,
 626                             buffers);
 627 }
 628
 629 static void
 630 galahad_set_index_buffer(struct pipe_context *_pipe,
 631                          const struct pipe_index_buffer *_ib)
 632 {
 633    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 634    struct pipe_context *pipe = glhd_pipe->pipe;
 635    struct pipe_index_buffer unwrapped_ib, *ib = NULL;
 636
 637    if (_ib->buffer) {
 638       switch (_ib->index_size) {
 639       case 1:
 640       case 2:
 641       case 4:
 642          break;
 643       default:
 644          glhd_warn("index buffer %p has unrecognized index size %d",
 645                    (void *) _ib->buffer, _ib->index_size);
 646          break;
 647       }
 648    }
 649    else if (_ib->offset || _ib->index_size) {
 650       glhd_warn("non-indexed state with index offset %d and index size %d",
 651             _ib->offset, _ib->index_size);
 652    }
 653
 654    if (_ib) {
 655       unwrapped_ib = *_ib;
 656       unwrapped_ib.buffer = galahad_resource_unwrap(_ib->buffer);
 657       ib = &unwrapped_ib;
 658    }
 659
 660    pipe->set_index_buffer(pipe, ib);
 661 }
 662
 663 static void
 664 galahad_resource_copy_region(struct pipe_context *_pipe,
 665                               struct pipe_resource *_dst,
 666                               unsigned dst_level,
 667                               unsigned dstx,
 668                               unsigned dsty,
 669                               unsigned dstz,
 670                               struct pipe_resource *_src,
 671                               unsigned src_level,
 672                               const struct pipe_box *src_box)
 673 {
 674    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 675    struct galahad_resource *glhd_resource_dst = galahad_resource(_dst);
 676    struct galahad_resource *glhd_resource_src = galahad_resource(_src);
 677    struct pipe_context *pipe = glhd_pipe->pipe;
 678    struct pipe_resource *dst = glhd_resource_dst->resource;
 679    struct pipe_resource *src = glhd_resource_src->resource;
 680
 681    if (_dst->format != _src->format) {
 682       glhd_warn("Format mismatch: Source is %s, destination is %s",
 683          util_format_short_name(_src->format),
 684          util_format_short_name(_dst->format));
 685    }
 686
 687    if ((_src->target == PIPE_BUFFER && _dst->target != PIPE_BUFFER) ||
 688        (_src->target != PIPE_BUFFER && _dst->target == PIPE_BUFFER)) {
 689       glhd_warn("Resource target mismatch: Source is %i, destination is %i",
 690                 _src->target, _dst->target);
 691    }
 692
 693    pipe->resource_copy_region(pipe,
 694                               dst,
 695                               dst_level,
 696                               dstx,
 697                               dsty,
 698                               dstz,
 699                               src,
 700                               src_level,
 701                               src_box);
 702 }
 703
 704 static void
 705 galahad_clear(struct pipe_context *_pipe,
 706                unsigned buffers,
 707                const union pipe_color_union *color,
 708                double depth,
 709                unsigned stencil)
 710 {
 711    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 712    struct pipe_context *pipe = glhd_pipe->pipe;
 713
 714    pipe->clear(pipe,
 715                buffers,
 716                color,
 717                depth,
 718                stencil);
 719 }
 720
 721 static void
 722 galahad_clear_render_target(struct pipe_context *_pipe,
 723                              struct pipe_surface *_dst,
 724                              const union pipe_color_union *color,
 725                              unsigned dstx, unsigned dsty,
 726                              unsigned width, unsigned height)
 727 {
 728    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 729    struct galahad_surface *glhd_surface_dst = galahad_surface(_dst);
 730    struct pipe_context *pipe = glhd_pipe->pipe;
 731    struct pipe_surface *dst = glhd_surface_dst->surface;
 732
 733    pipe->clear_render_target(pipe,
 734                              dst,
 735                              color,
 736                              dstx,
 737                              dsty,
 738                              width,
 739                              height);
 740 }
 741 static void
 742 galahad_clear_depth_stencil(struct pipe_context *_pipe,
 743                              struct pipe_surface *_dst,
 744                              unsigned clear_flags,
 745                              double depth,
 746                              unsigned stencil,
 747                              unsigned dstx, unsigned dsty,
 748                              unsigned width, unsigned height)
 749 {
 750    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 751    struct galahad_surface *glhd_surface_dst = galahad_surface(_dst);
 752    struct pipe_context *pipe = glhd_pipe->pipe;
 753    struct pipe_surface *dst = glhd_surface_dst->surface;
 754
 755    pipe->clear_depth_stencil(pipe,
 756                              dst,
 757                              clear_flags,
 758                              depth,
 759                              stencil,
 760                              dstx,
 761                              dsty,
 762                              width,
 763                              height);
 764
 765 }
 766
 767 static void
 768 galahad_flush(struct pipe_context *_pipe,
 769                struct pipe_fence_handle **fence)
 770 {
 771    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 772    struct pipe_context *pipe = glhd_pipe->pipe;
 773
 774    pipe->flush(pipe,
 775                fence);
 776 }
 777
 778 static struct pipe_sampler_view *
 779 galahad_context_create_sampler_view(struct pipe_context *_pipe,
 780                                      struct pipe_resource *_resource,
 781                                      const struct pipe_sampler_view *templ)
 782 {
 783    struct galahad_context *glhd_context = galahad_context(_pipe);
 784    struct galahad_resource *glhd_resource = galahad_resource(_resource);
 785    struct pipe_context *pipe = glhd_context->pipe;
 786    struct pipe_resource *resource = glhd_resource->resource;
 787    struct pipe_sampler_view *result;
 788
 789    result = pipe->create_sampler_view(pipe,
 790                                       resource,
 791                                       templ);
 792
 793    if (result)
 794       return galahad_sampler_view_create(glhd_context, glhd_resource, result);
 795    return NULL;
 796 }
 797
 798 static void
 799 galahad_context_sampler_view_destroy(struct pipe_context *_pipe,
 800                                       struct pipe_sampler_view *_view)
 801 {
 802    galahad_sampler_view_destroy(galahad_context(_pipe),
 803                                  galahad_sampler_view(_view));
 804 }
 805
 806 static struct pipe_surface *
 807 galahad_context_create_surface(struct pipe_context *_pipe,
 808                                 struct pipe_resource *_resource,
 809                                 const struct pipe_surface *templ)
 810 {
 811    struct galahad_context *glhd_context = galahad_context(_pipe);
 812    struct galahad_resource *glhd_resource = galahad_resource(_resource);
 813    struct pipe_context *pipe = glhd_context->pipe;
 814    struct pipe_resource *resource = glhd_resource->resource;
 815    struct pipe_surface *result;
 816
 817    result = pipe->create_surface(pipe,
 818                                  resource,
 819                                  templ);
 820
 821    if (result)
 822       return galahad_surface_create(glhd_context, glhd_resource, result);
 823    return NULL;
 824 }
 825
 826 static void
 827 galahad_context_surface_destroy(struct pipe_context *_pipe,
 828                                 struct pipe_surface *_surface)
 829 {
 830    galahad_surface_destroy(galahad_context(_pipe),
 831                            galahad_surface(_surface));
 832 }
 833
 834
 835
 836 static struct pipe_transfer *
 837 galahad_context_get_transfer(struct pipe_context *_context,
 838                               struct pipe_resource *_resource,
 839                               unsigned level,
 840                               unsigned usage,
 841                               const struct pipe_box *box)
 842 {
 843    struct galahad_context *glhd_context = galahad_context(_context);
 844    struct galahad_resource *glhd_resource = galahad_resource(_resource);
 845    struct pipe_context *context = glhd_context->pipe;
 846    struct pipe_resource *resource = glhd_resource->resource;
 847    struct pipe_transfer *result;
 848
 849    result = context->get_transfer(context,
 850                                   resource,
 851                                   level,
 852                                   usage,
 853                                   box);
 854
 855    if (result)
 856       return galahad_transfer_create(glhd_context, glhd_resource, result);
 857    return NULL;
 858 }
 859
 860 static void
 861 galahad_context_transfer_destroy(struct pipe_context *_pipe,
 862                                   struct pipe_transfer *_transfer)
 863 {
 864    galahad_transfer_destroy(galahad_context(_pipe),
 865                              galahad_transfer(_transfer));
 866 }
 867
 868 static void *
 869 galahad_context_transfer_map(struct pipe_context *_context,
 870                               struct pipe_transfer *_transfer)
 871 {
 872    struct galahad_context *glhd_context = galahad_context(_context);
 873    struct galahad_transfer *glhd_transfer = galahad_transfer(_transfer);
 874    struct pipe_context *context = glhd_context->pipe;
 875    struct pipe_transfer *transfer = glhd_transfer->transfer;
 876
 877    struct galahad_resource *glhd_resource = galahad_resource(_transfer->resource);
 878
 879    glhd_resource->map_count++;
 880
 881    return context->transfer_map(context,
 882                                 transfer);
 883 }
 884
 885
 886
 887 static void
 888 galahad_context_transfer_flush_region(struct pipe_context *_context,
 889                                        struct pipe_transfer *_transfer,
 890                                        const struct pipe_box *box)
 891 {
 892    struct galahad_context *glhd_context = galahad_context(_context);
 893    struct galahad_transfer *glhd_transfer = galahad_transfer(_transfer);
 894    struct pipe_context *context = glhd_context->pipe;
 895    struct pipe_transfer *transfer = glhd_transfer->transfer;
 896
 897    context->transfer_flush_region(context,
 898                                   transfer,
 899                                   box);
 900 }
 901
 902
 903 static void
 904 galahad_context_transfer_unmap(struct pipe_context *_context,
 905                                 struct pipe_transfer *_transfer)
 906 {
 907    struct galahad_context *glhd_context = galahad_context(_context);
 908    struct galahad_transfer *glhd_transfer = galahad_transfer(_transfer);
 909    struct pipe_context *context = glhd_context->pipe;
 910    struct pipe_transfer *transfer = glhd_transfer->transfer;
 911    struct galahad_resource *glhd_resource = galahad_resource(_transfer->resource);
 912
 913    if (glhd_resource->map_count < 1) {
 914       glhd_warn("context::transfer_unmap() called too many times"
 915                 " (count = %d)\n", glhd_resource->map_count);
 916    }
 917
 918    glhd_resource->map_count--;
 919
 920    context->transfer_unmap(context,
 921                            transfer);
 922 }
 923
 924
 925 static void
 926 galahad_context_transfer_inline_write(struct pipe_context *_context,
 927                                        struct pipe_resource *_resource,
 928                                        unsigned level,
 929                                        unsigned usage,
 930                                        const struct pipe_box *box,
 931                                        const void *data,
 932                                        unsigned stride,
 933                                        unsigned slice_stride)
 934 {
 935    struct galahad_context *glhd_context = galahad_context(_context);
 936    struct galahad_resource *glhd_resource = galahad_resource(_resource);
 937    struct pipe_context *context = glhd_context->pipe;
 938    struct pipe_resource *resource = glhd_resource->resource;
 939
 940    context->transfer_inline_write(context,
 941                                   resource,
 942                                   level,
 943                                   usage,
 944                                   box,
 945                                   data,
 946                                   stride,
 947                                   slice_stride);
 948 }
 949
 950
 951 static void galahad_redefine_user_buffer(struct pipe_context *_context,
 952                                          struct pipe_resource *_resource,
 953                                          unsigned offset, unsigned size)
 954 {
 955    struct galahad_context *glhd_context = galahad_context(_context);
 956    struct galahad_resource *glhd_resource = galahad_resource(_resource);
 957    struct pipe_context *context = glhd_context->pipe;
 958    struct pipe_resource *resource = glhd_resource->resource;
 959
 960    context->redefine_user_buffer(context, resource, offset, size);
 961 }
 962
 963
 964 struct pipe_context *
 965 galahad_context_create(struct pipe_screen *_screen, struct pipe_context *pipe)
 966 {
 967    struct galahad_context *glhd_pipe;
 968    (void)galahad_screen(_screen);
 969
 970    glhd_pipe = CALLOC_STRUCT(galahad_context);
 971    if (!glhd_pipe) {
 972       return NULL;
 973    }
 974
 975    glhd_pipe->base.screen = _screen;
 976    glhd_pipe->base.priv = pipe->priv; /* expose wrapped data */
 977    glhd_pipe->base.draw = NULL;
 978
 979    glhd_pipe->base.destroy = galahad_destroy;
 980    glhd_pipe->base.draw_vbo = galahad_draw_vbo;
 981    glhd_pipe->base.create_query = galahad_create_query;
 982    glhd_pipe->base.destroy_query = galahad_destroy_query;
 983    glhd_pipe->base.begin_query = galahad_begin_query;
 984    glhd_pipe->base.end_query = galahad_end_query;
 985    glhd_pipe->base.get_query_result = galahad_get_query_result;
 986    glhd_pipe->base.create_blend_state = galahad_create_blend_state;
 987    glhd_pipe->base.bind_blend_state = galahad_bind_blend_state;
 988    glhd_pipe->base.delete_blend_state = galahad_delete_blend_state;
 989    glhd_pipe->base.create_sampler_state = galahad_create_sampler_state;
 990    glhd_pipe->base.bind_fragment_sampler_states = galahad_bind_fragment_sampler_states;
 991    glhd_pipe->base.bind_vertex_sampler_states = galahad_bind_vertex_sampler_states;
 992    glhd_pipe->base.delete_sampler_state = galahad_delete_sampler_state;
 993    glhd_pipe->base.create_rasterizer_state = galahad_create_rasterizer_state;
 994    glhd_pipe->base.bind_rasterizer_state = galahad_bind_rasterizer_state;
 995    glhd_pipe->base.delete_rasterizer_state = galahad_delete_rasterizer_state;
 996    glhd_pipe->base.create_depth_stencil_alpha_state = galahad_create_depth_stencil_alpha_state;
 997    glhd_pipe->base.bind_depth_stencil_alpha_state = galahad_bind_depth_stencil_alpha_state;
 998    glhd_pipe->base.delete_depth_stencil_alpha_state = galahad_delete_depth_stencil_alpha_state;
 999    glhd_pipe->base.create_fs_state = galahad_create_fs_state;
1000    glhd_pipe->base.bind_fs_state = galahad_bind_fs_state;
1001    glhd_pipe->base.delete_fs_state = galahad_delete_fs_state;
1002    glhd_pipe->base.create_vs_state = galahad_create_vs_state;
1003    glhd_pipe->base.bind_vs_state = galahad_bind_vs_state;
1004    glhd_pipe->base.delete_vs_state = galahad_delete_vs_state;
1005    glhd_pipe->base.create_vertex_elements_state = galahad_create_vertex_elements_state;
1006    glhd_pipe->base.bind_vertex_elements_state = galahad_bind_vertex_elements_state;
1007    glhd_pipe->base.delete_vertex_elements_state = galahad_delete_vertex_elements_state;
1008    glhd_pipe->base.set_blend_color = galahad_set_blend_color;
1009    glhd_pipe->base.set_stencil_ref = galahad_set_stencil_ref;
1010    glhd_pipe->base.set_clip_state = galahad_set_clip_state;
1011    glhd_pipe->base.set_sample_mask = galahad_set_sample_mask;
1012    glhd_pipe->base.set_constant_buffer = galahad_set_constant_buffer;
1013    glhd_pipe->base.set_framebuffer_state = galahad_set_framebuffer_state;
1014    glhd_pipe->base.set_polygon_stipple = galahad_set_polygon_stipple;
1015    glhd_pipe->base.set_scissor_state = galahad_set_scissor_state;
1016    glhd_pipe->base.set_viewport_state = galahad_set_viewport_state;
1017    glhd_pipe->base.set_fragment_sampler_views = galahad_set_fragment_sampler_views;
1018    glhd_pipe->base.set_vertex_sampler_views = galahad_set_vertex_sampler_views;
1019    glhd_pipe->base.set_vertex_buffers = galahad_set_vertex_buffers;
1020    glhd_pipe->base.set_index_buffer = galahad_set_index_buffer;
1021    glhd_pipe->base.resource_copy_region = galahad_resource_copy_region;
1022    glhd_pipe->base.clear = galahad_clear;
1023    glhd_pipe->base.clear_render_target = galahad_clear_render_target;
1024    glhd_pipe->base.clear_depth_stencil = galahad_clear_depth_stencil;
1025    glhd_pipe->base.flush = galahad_flush;
1026    glhd_pipe->base.create_sampler_view = galahad_context_create_sampler_view;
1027    glhd_pipe->base.sampler_view_destroy = galahad_context_sampler_view_destroy;
1028    glhd_pipe->base.create_surface = galahad_context_create_surface;
1029    glhd_pipe->base.surface_destroy = galahad_context_surface_destroy;
1030    glhd_pipe->base.get_transfer = galahad_context_get_transfer;
1031    glhd_pipe->base.transfer_destroy = galahad_context_transfer_destroy;
1032    glhd_pipe->base.transfer_map = galahad_context_transfer_map;
1033    glhd_pipe->base.transfer_unmap = galahad_context_transfer_unmap;
1034    glhd_pipe->base.transfer_flush_region = galahad_context_transfer_flush_region;
1035    glhd_pipe->base.transfer_inline_write = galahad_context_transfer_inline_write;
1036    glhd_pipe->base.redefine_user_buffer = galahad_redefine_user_buffer;
1037
1038    glhd_pipe->pipe = pipe;
1039
1040    glhd_warn("Created context %p", (void *) glhd_pipe);
1041
1042    return &glhd_pipe->base;
1043 }