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_context_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_context_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_context_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_QUERY_TIME_ELAPSED)) {
  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_context_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_context_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_context_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_context_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_context_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_context_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_context_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_context_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_context_bind_sampler_states(struct pipe_context *_pipe,
 186                                     unsigned shader,
 187                                     unsigned start,
 188                                     unsigned num_samplers,
 189                                     void **samplers)
 190 {
 191    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 192    struct pipe_context *pipe = glhd_pipe->pipe;
 193
 194    if (num_samplers > PIPE_MAX_SAMPLERS) {
 195       glhd_error("%u samplers requested, "
 196          "but only %u are permitted by API",
 197          num_samplers, PIPE_MAX_SAMPLERS);
 198    }
 199
 200    switch (shader) {
 201    case PIPE_SHADER_VERTEX:
 202       pipe->bind_vertex_sampler_states(pipe, num_samplers, samplers);
 203       break;
 204    case PIPE_SHADER_FRAGMENT:
 205       pipe->bind_fragment_sampler_states(pipe, num_samplers, samplers);
 206       break;
 207    case PIPE_SHADER_GEOMETRY:
 208       pipe->bind_geometry_sampler_states(pipe, num_samplers, samplers);
 209       break;
 210    default:
 211       assert(0);
 212    }
 213 }
 214
 215 static void
 216 galahad_context_bind_vertex_sampler_states(struct pipe_context *_pipe,
 217                                            unsigned num_samplers,
 218                                            void **samplers)
 219 {
 220    galahad_context_bind_sampler_states(_pipe, PIPE_SHADER_VERTEX,
 221                                        0, num_samplers, samplers);
 222 }
 223
 224 static void
 225 galahad_context_bind_fragment_sampler_states(struct pipe_context *_pipe,
 226                                              unsigned num_samplers,
 227                                              void **samplers)
 228 {
 229    galahad_context_bind_sampler_states(_pipe, PIPE_SHADER_FRAGMENT,
 230                                        0, num_samplers, samplers);
 231 }
 232
 233 static void
 234 galahad_context_bind_geometry_sampler_states(struct pipe_context *_pipe,
 235                                              unsigned num_samplers,
 236                                              void **samplers)
 237 {
 238    galahad_context_bind_sampler_states(_pipe, PIPE_SHADER_GEOMETRY,
 239                                        0, num_samplers, samplers);
 240 }
 241
 242
 243 static void
 244 galahad_context_delete_sampler_state(struct pipe_context *_pipe,
 245                               void *sampler)
 246 {
 247    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 248    struct pipe_context *pipe = glhd_pipe->pipe;
 249
 250    pipe->delete_sampler_state(pipe,
 251                               sampler);
 252 }
 253
 254 static void *
 255 galahad_context_create_rasterizer_state(struct pipe_context *_pipe,
 256                                  const struct pipe_rasterizer_state *rasterizer)
 257 {
 258    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 259    struct pipe_context *pipe = glhd_pipe->pipe;
 260
 261    if (rasterizer->point_quad_rasterization) {
 262        if (rasterizer->point_smooth) {
 263            glhd_warn("Point smoothing requested but ignored");
 264        }
 265    } else {
 266        if (rasterizer->sprite_coord_enable) {
 267            glhd_warn("Point sprites requested but ignored");
 268        }
 269    }
 270
 271    return pipe->create_rasterizer_state(pipe,
 272                                         rasterizer);
 273 }
 274
 275 static void
 276 galahad_context_bind_rasterizer_state(struct pipe_context *_pipe,
 277                                void *rasterizer)
 278 {
 279    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 280    struct pipe_context *pipe = glhd_pipe->pipe;
 281
 282    pipe->bind_rasterizer_state(pipe,
 283                                rasterizer);
 284 }
 285
 286 static void
 287 galahad_context_delete_rasterizer_state(struct pipe_context *_pipe,
 288                                  void *rasterizer)
 289 {
 290    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 291    struct pipe_context *pipe = glhd_pipe->pipe;
 292
 293    pipe->delete_rasterizer_state(pipe,
 294                                  rasterizer);
 295 }
 296
 297 static void *
 298 galahad_context_create_depth_stencil_alpha_state(struct pipe_context *_pipe,
 299                                           const struct pipe_depth_stencil_alpha_state *depth_stencil_alpha)
 300 {
 301    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 302    struct pipe_context *pipe = glhd_pipe->pipe;
 303
 304    return pipe->create_depth_stencil_alpha_state(pipe,
 305                                                  depth_stencil_alpha);
 306 }
 307
 308 static void
 309 galahad_context_bind_depth_stencil_alpha_state(struct pipe_context *_pipe,
 310                                         void *depth_stencil_alpha)
 311 {
 312    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 313    struct pipe_context *pipe = glhd_pipe->pipe;
 314
 315    pipe->bind_depth_stencil_alpha_state(pipe,
 316                                         depth_stencil_alpha);
 317 }
 318
 319 static void
 320 galahad_context_delete_depth_stencil_alpha_state(struct pipe_context *_pipe,
 321                                           void *depth_stencil_alpha)
 322 {
 323    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 324    struct pipe_context *pipe = glhd_pipe->pipe;
 325
 326    pipe->delete_depth_stencil_alpha_state(pipe,
 327                                           depth_stencil_alpha);
 328 }
 329
 330 #define GLHD_SHADER_STATE(shader_type) \
 331    static void * \
 332    galahad_context_create_##shader_type##_state(struct pipe_context *_pipe, \
 333                             const struct pipe_shader_state *state) \
 334    { \
 335       struct galahad_context *glhd_pipe = galahad_context(_pipe); \
 336       struct pipe_context *pipe = glhd_pipe->pipe; \
 337       return pipe->create_##shader_type##_state(pipe, state); \
 338    } \
 339    \
 340    static void \
 341    galahad_context_bind_##shader_type##_state(struct pipe_context *_pipe, \
 342                                               void *state) \
 343    { \
 344       struct galahad_context *glhd_pipe = galahad_context(_pipe); \
 345       struct pipe_context *pipe = glhd_pipe->pipe; \
 346       pipe->bind_##shader_type##_state(pipe, state); \
 347    } \
 348    \
 349    static void \
 350    galahad_context_delete_##shader_type##_state(struct pipe_context *_pipe, \
 351                                                 void *state) \
 352    { \
 353       struct galahad_context *glhd_pipe = galahad_context(_pipe); \
 354       struct pipe_context *pipe = glhd_pipe->pipe; \
 355       pipe->delete_##shader_type##_state(pipe, state); \
 356    }
 357
 358 GLHD_SHADER_STATE(fs)
 359 GLHD_SHADER_STATE(vs)
 360 GLHD_SHADER_STATE(gs)
 361
 362 #undef GLHD_SHADER_STATE
 363
 364 static void *
 365 galahad_context_create_vertex_elements_state(struct pipe_context *_pipe,
 366                                       unsigned num_elements,
 367                                       const struct pipe_vertex_element *vertex_elements)
 368 {
 369    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 370    struct pipe_context *pipe = glhd_pipe->pipe;
 371
 372    /* XXX check if stride lines up with element size, at least for floats */
 373
 374    return pipe->create_vertex_elements_state(pipe,
 375                                              num_elements,
 376                                              vertex_elements);
 377 }
 378
 379 static void
 380 galahad_context_bind_vertex_elements_state(struct pipe_context *_pipe,
 381                                     void *velems)
 382 {
 383    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 384    struct pipe_context *pipe = glhd_pipe->pipe;
 385
 386    pipe->bind_vertex_elements_state(pipe,
 387                                     velems);
 388 }
 389
 390 static void
 391 galahad_context_delete_vertex_elements_state(struct pipe_context *_pipe,
 392                                       void *velems)
 393 {
 394    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 395    struct pipe_context *pipe = glhd_pipe->pipe;
 396
 397    pipe->delete_vertex_elements_state(pipe,
 398                                       velems);
 399 }
 400
 401 static void
 402 galahad_context_set_blend_color(struct pipe_context *_pipe,
 403                          const struct pipe_blend_color *blend_color)
 404 {
 405    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 406    struct pipe_context *pipe = glhd_pipe->pipe;
 407
 408    pipe->set_blend_color(pipe,
 409                          blend_color);
 410 }
 411
 412 static void
 413 galahad_context_set_stencil_ref(struct pipe_context *_pipe,
 414                          const struct pipe_stencil_ref *stencil_ref)
 415 {
 416    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 417    struct pipe_context *pipe = glhd_pipe->pipe;
 418
 419    pipe->set_stencil_ref(pipe,
 420                          stencil_ref);
 421 }
 422
 423 static void
 424 galahad_context_set_clip_state(struct pipe_context *_pipe,
 425                         const struct pipe_clip_state *clip)
 426 {
 427    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 428    struct pipe_context *pipe = glhd_pipe->pipe;
 429
 430    pipe->set_clip_state(pipe,
 431                         clip);
 432 }
 433
 434 static void
 435 galahad_context_set_sample_mask(struct pipe_context *_pipe,
 436                          unsigned sample_mask)
 437 {
 438    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 439    struct pipe_context *pipe = glhd_pipe->pipe;
 440
 441    pipe->set_sample_mask(pipe,
 442                          sample_mask);
 443 }
 444
 445 static void
 446 galahad_context_set_constant_buffer(struct pipe_context *_pipe,
 447                              uint shader,
 448                              uint index,
 449                              struct pipe_constant_buffer *_cb)
 450 {
 451    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 452    struct pipe_context *pipe = glhd_pipe->pipe;
 453    struct pipe_constant_buffer cb;
 454
 455    if (shader >= PIPE_SHADER_TYPES) {
 456       glhd_error("Unknown shader type %u", shader);
 457    }
 458
 459    if (index &&
 460       index >=
 461          pipe->screen->get_shader_param(pipe->screen, shader, PIPE_SHADER_CAP_MAX_CONST_BUFFERS)) {
 462       glhd_error("Access to constant buffer %u requested, "
 463          "but only %d are supported",
 464          index,
 465          pipe->screen->get_shader_param(pipe->screen, shader, PIPE_SHADER_CAP_MAX_CONST_BUFFERS));
 466    }
 467
 468    /* XXX hmm? unwrap the input state */
 469    if (_cb) {
 470       cb = *_cb;
 471       cb.buffer = galahad_resource_unwrap(_cb->buffer);
 472    }
 473
 474    pipe->set_constant_buffer(pipe,
 475                              shader,
 476                              index,
 477                              _cb ? &cb : NULL);
 478 }
 479
 480 static void
 481 galahad_context_set_framebuffer_state(struct pipe_context *_pipe,
 482                                const struct pipe_framebuffer_state *_state)
 483 {
 484    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 485    struct pipe_context *pipe = glhd_pipe->pipe;
 486    struct pipe_framebuffer_state unwrapped_state;
 487    struct pipe_framebuffer_state *state = NULL;
 488    unsigned i;
 489
 490    if (_state->nr_cbufs > PIPE_MAX_COLOR_BUFS) {
 491       glhd_error("%d render targets bound, but only %d are permitted by API",
 492          _state->nr_cbufs, PIPE_MAX_COLOR_BUFS);
 493    } else if (_state->nr_cbufs >
 494       pipe->screen->get_param(pipe->screen, PIPE_CAP_MAX_RENDER_TARGETS)) {
 495       glhd_warn("%d render targets bound, but only %d are supported",
 496          _state->nr_cbufs,
 497          pipe->screen->get_param(pipe->screen, PIPE_CAP_MAX_RENDER_TARGETS));
 498    }
 499
 500    /* unwrap the input state */
 501    if (_state) {
 502       memcpy(&unwrapped_state, _state, sizeof(unwrapped_state));
 503       for(i = 0; i < _state->nr_cbufs; i++)
 504          unwrapped_state.cbufs[i] = galahad_surface_unwrap(_state->cbufs[i]);
 505       for (; i < PIPE_MAX_COLOR_BUFS; i++)
 506          unwrapped_state.cbufs[i] = NULL;
 507       unwrapped_state.zsbuf = galahad_surface_unwrap(_state->zsbuf);
 508       state = &unwrapped_state;
 509    }
 510
 511    pipe->set_framebuffer_state(pipe,
 512                                state);
 513 }
 514
 515 static void
 516 galahad_context_set_polygon_stipple(struct pipe_context *_pipe,
 517                              const struct pipe_poly_stipple *poly_stipple)
 518 {
 519    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 520    struct pipe_context *pipe = glhd_pipe->pipe;
 521
 522    pipe->set_polygon_stipple(pipe,
 523                              poly_stipple);
 524 }
 525
 526 static void
 527 galahad_context_set_scissor_state(struct pipe_context *_pipe,
 528                            const struct pipe_scissor_state *scissor)
 529 {
 530    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 531    struct pipe_context *pipe = glhd_pipe->pipe;
 532
 533    pipe->set_scissor_state(pipe,
 534                            scissor);
 535 }
 536
 537 static void
 538 galahad_context_set_viewport_state(struct pipe_context *_pipe,
 539                             const struct pipe_viewport_state *viewport)
 540 {
 541    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 542    struct pipe_context *pipe = glhd_pipe->pipe;
 543
 544    pipe->set_viewport_state(pipe,
 545                             viewport);
 546 }
 547
 548 static void
 549 galahad_context_set_sampler_views(struct pipe_context *_pipe,
 550                                   unsigned shader,
 551                                   unsigned start,
 552                                   unsigned num,
 553                                   struct pipe_sampler_view **_views)
 554 {
 555    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 556    struct pipe_context *pipe = glhd_pipe->pipe;
 557    struct pipe_sampler_view *unwrapped_views[PIPE_MAX_SAMPLERS];
 558    struct pipe_sampler_view **views = NULL;
 559    unsigned i;
 560
 561    if (_views) {
 562       for (i = 0; i < num; i++)
 563          unwrapped_views[i] = galahad_sampler_view_unwrap(_views[i]);
 564       for (; i < PIPE_MAX_SAMPLERS; i++)
 565          unwrapped_views[i] = NULL;
 566
 567       views = unwrapped_views;
 568    }
 569
 570    switch (shader) {
 571    case PIPE_SHADER_VERTEX:
 572       pipe->set_vertex_sampler_views(pipe, num, views);
 573       break;
 574    case PIPE_SHADER_FRAGMENT:
 575       pipe->set_fragment_sampler_views(pipe, num, views);
 576       break;
 577    case PIPE_SHADER_GEOMETRY:
 578       pipe->set_geometry_sampler_views(pipe, num, views);
 579       break;
 580    default:
 581       assert(0);
 582    }
 583 }
 584
 585 static void
 586 galahad_context_set_vertex_sampler_views(struct pipe_context *_pipe,
 587                                          unsigned num,
 588                                          struct pipe_sampler_view **_views)
 589 {
 590    galahad_context_set_sampler_views(_pipe, PIPE_SHADER_VERTEX,
 591                                      0, num, _views);
 592 }
 593
 594 static void
 595 galahad_context_set_fragment_sampler_views(struct pipe_context *_pipe,
 596                                            unsigned num,
 597                                            struct pipe_sampler_view **_views)
 598 {
 599    galahad_context_set_sampler_views(_pipe, PIPE_SHADER_FRAGMENT,
 600                                      0, num, _views);
 601 }
 602
 603 static void
 604 galahad_context_set_geometry_sampler_views(struct pipe_context *_pipe,
 605                                            unsigned num,
 606                                            struct pipe_sampler_view **_views)
 607 {
 608    galahad_context_set_sampler_views(_pipe, PIPE_SHADER_GEOMETRY,
 609                                      0, num, _views);
 610 }
 611
 612 static void
 613 galahad_context_set_vertex_buffers(struct pipe_context *_pipe,
 614                             unsigned start_slot, unsigned num_buffers,
 615                             const struct pipe_vertex_buffer *_buffers)
 616 {
 617    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 618    struct pipe_context *pipe = glhd_pipe->pipe;
 619    struct pipe_vertex_buffer unwrapped_buffers[PIPE_MAX_SHADER_INPUTS];
 620    struct pipe_vertex_buffer *buffers = NULL;
 621    unsigned i;
 622
 623    if (num_buffers && _buffers) {
 624       memcpy(unwrapped_buffers, _buffers, num_buffers * sizeof(*_buffers));
 625       for (i = 0; i < num_buffers; i++)
 626          unwrapped_buffers[i].buffer = galahad_resource_unwrap(_buffers[i].buffer);
 627       buffers = unwrapped_buffers;
 628    }
 629
 630    pipe->set_vertex_buffers(pipe,
 631                             start_slot, num_buffers,
 632                             buffers);
 633 }
 634
 635 static void
 636 galahad_context_set_index_buffer(struct pipe_context *_pipe,
 637                          const struct pipe_index_buffer *_ib)
 638 {
 639    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 640    struct pipe_context *pipe = glhd_pipe->pipe;
 641    struct pipe_index_buffer unwrapped_ib, *ib = NULL;
 642
 643    if (_ib) {
 644       if (_ib->buffer || _ib->user_buffer) {
 645          switch (_ib->index_size) {
 646          case 1:
 647          case 2:
 648          case 4:
 649             break;
 650          default:
 651             glhd_warn("unrecognized index size %d", _ib->index_size);
 652             break;
 653          }
 654       }
 655       else if (_ib->offset || _ib->index_size) {
 656          glhd_warn("non-indexed state with index offset %d and index size %d",
 657                _ib->offset, _ib->index_size);
 658       }
 659
 660       unwrapped_ib = *_ib;
 661       unwrapped_ib.buffer = galahad_resource_unwrap(_ib->buffer);
 662       ib = &unwrapped_ib;
 663    }
 664
 665    pipe->set_index_buffer(pipe, ib);
 666 }
 667
 668 static INLINE struct pipe_stream_output_target *
 669 galahad_context_create_stream_output_target(struct pipe_context *_pipe,
 670                                             struct pipe_resource *_res,
 671                                             unsigned buffer_offset,
 672                                             unsigned buffer_size)
 673 {
 674    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 675    struct galahad_resource *glhd_resource_res = galahad_resource(_res);
 676    struct pipe_context *pipe = glhd_pipe->pipe;
 677    struct pipe_resource *res = glhd_resource_res->resource;
 678
 679    return pipe->create_stream_output_target(pipe,
 680                                             res, buffer_offset, buffer_size);
 681 }
 682
 683 static INLINE void
 684 galahad_context_stream_output_target_destroy(
 685    struct pipe_context *_pipe,
 686    struct pipe_stream_output_target *target)
 687 {
 688    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 689    struct pipe_context *pipe = glhd_pipe->pipe;
 690
 691    pipe->stream_output_target_destroy(pipe, target);
 692 }
 693
 694 static INLINE void
 695 galahad_context_set_stream_output_targets(struct pipe_context *_pipe,
 696                                           unsigned num_targets,
 697                                           struct pipe_stream_output_target **tgs,
 698                                           unsigned append_bitmask)
 699 {
 700    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 701    struct pipe_context *pipe = glhd_pipe->pipe;
 702
 703    pipe->set_stream_output_targets(pipe, num_targets, tgs, append_bitmask);
 704 }
 705
 706 static void
 707 galahad_context_resource_copy_region(struct pipe_context *_pipe,
 708                                      struct pipe_resource *_dst,
 709                                      unsigned dst_level,
 710                                      unsigned dstx,
 711                                      unsigned dsty,
 712                                      unsigned dstz,
 713                                      struct pipe_resource *_src,
 714                                      unsigned src_level,
 715                                      const struct pipe_box *src_box)
 716 {
 717    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 718    struct galahad_resource *glhd_resource_dst = galahad_resource(_dst);
 719    struct galahad_resource *glhd_resource_src = galahad_resource(_src);
 720    struct pipe_context *pipe = glhd_pipe->pipe;
 721    struct pipe_resource *dst = glhd_resource_dst->resource;
 722    struct pipe_resource *src = glhd_resource_src->resource;
 723
 724    if (_dst->format != _src->format) {
 725       const struct util_format_description *src_desc =
 726          util_format_description(_src->format);
 727       const struct util_format_description *dst_desc =
 728          util_format_description(_dst->format);
 729       if (!util_is_format_compatible(src_desc, dst_desc))
 730          glhd_warn("Format mismatch: Source is %s, destination is %s",
 731             src_desc->short_name,
 732             dst_desc->short_name);
 733    }
 734
 735    if ((_src->target == PIPE_BUFFER && _dst->target != PIPE_BUFFER) ||
 736        (_src->target != PIPE_BUFFER && _dst->target == PIPE_BUFFER)) {
 737       glhd_warn("Resource target mismatch: Source is %i, destination is %i",
 738                 _src->target, _dst->target);
 739    }
 740
 741    pipe->resource_copy_region(pipe,
 742                               dst,
 743                               dst_level,
 744                               dstx,
 745                               dsty,
 746                               dstz,
 747                               src,
 748                               src_level,
 749                               src_box);
 750 }
 751
 752 static void
 753 galahad_context_blit(struct pipe_context *_pipe,
 754                      const struct pipe_blit_info *_info)
 755 {
 756    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 757    struct pipe_context *pipe = glhd_pipe->pipe;
 758    struct pipe_blit_info info = *_info;
 759
 760    info.dst.resource = galahad_resource_unwrap(info.dst.resource);
 761    info.src.resource = galahad_resource_unwrap(info.src.resource);
 762
 763    if (info.dst.box.width < 0 ||
 764        info.dst.box.height < 0)
 765       glhd_error("Destination dimensions are negative");
 766
 767    if (info.filter != PIPE_TEX_FILTER_NEAREST &&
 768        info.src.resource->target != PIPE_TEXTURE_3D &&
 769        info.dst.box.depth != info.src.box.depth)
 770       glhd_error("Filtering in z-direction on non-3D texture");
 771
 772    if (util_format_is_depth_or_stencil(info.dst.format) !=
 773        util_format_is_depth_or_stencil(info.src.format))
 774       glhd_error("Invalid format conversion: %s <- %s\n",
 775                  util_format_name(info.dst.format),
 776                  util_format_name(info.src.format));
 777
 778    pipe->blit(pipe, &info);
 779 }
 780
 781 static void
 782 galahad_context_clear(struct pipe_context *_pipe,
 783                unsigned buffers,
 784                const union pipe_color_union *color,
 785                double depth,
 786                unsigned stencil)
 787 {
 788    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 789    struct pipe_context *pipe = glhd_pipe->pipe;
 790
 791    pipe->clear(pipe,
 792                buffers,
 793                color,
 794                depth,
 795                stencil);
 796 }
 797
 798 static void
 799 galahad_context_clear_render_target(struct pipe_context *_pipe,
 800                              struct pipe_surface *_dst,
 801                              const union pipe_color_union *color,
 802                              unsigned dstx, unsigned dsty,
 803                              unsigned width, unsigned height)
 804 {
 805    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 806    struct galahad_surface *glhd_surface_dst = galahad_surface(_dst);
 807    struct pipe_context *pipe = glhd_pipe->pipe;
 808    struct pipe_surface *dst = glhd_surface_dst->surface;
 809
 810    pipe->clear_render_target(pipe,
 811                              dst,
 812                              color,
 813                              dstx,
 814                              dsty,
 815                              width,
 816                              height);
 817 }
 818 static void
 819 galahad_context_clear_depth_stencil(struct pipe_context *_pipe,
 820                              struct pipe_surface *_dst,
 821                              unsigned clear_flags,
 822                              double depth,
 823                              unsigned stencil,
 824                              unsigned dstx, unsigned dsty,
 825                              unsigned width, unsigned height)
 826 {
 827    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 828    struct galahad_surface *glhd_surface_dst = galahad_surface(_dst);
 829    struct pipe_context *pipe = glhd_pipe->pipe;
 830    struct pipe_surface *dst = glhd_surface_dst->surface;
 831
 832    pipe->clear_depth_stencil(pipe,
 833                              dst,
 834                              clear_flags,
 835                              depth,
 836                              stencil,
 837                              dstx,
 838                              dsty,
 839                              width,
 840                              height);
 841
 842 }
 843
 844 static void
 845 galahad_context_flush(struct pipe_context *_pipe,
 846                       struct pipe_fence_handle **fence,
 847                       unsigned flags)
 848 {
 849    struct galahad_context *glhd_pipe = galahad_context(_pipe);
 850    struct pipe_context *pipe = glhd_pipe->pipe;
 851
 852    pipe->flush(pipe, fence, flags);
 853 }
 854
 855 static struct pipe_sampler_view *
 856 galahad_context_create_sampler_view(struct pipe_context *_pipe,
 857                                      struct pipe_resource *_resource,
 858                                      const struct pipe_sampler_view *templ)
 859 {
 860    struct galahad_context *glhd_context = galahad_context(_pipe);
 861    struct galahad_resource *glhd_resource = galahad_resource(_resource);
 862    struct pipe_context *pipe = glhd_context->pipe;
 863    struct pipe_resource *resource = glhd_resource->resource;
 864    struct pipe_sampler_view *result;
 865
 866    result = pipe->create_sampler_view(pipe,
 867                                       resource,
 868                                       templ);
 869
 870    if (result)
 871       return galahad_sampler_view_create(glhd_context, glhd_resource, result);
 872    return NULL;
 873 }
 874
 875 static void
 876 galahad_context_sampler_view_destroy(struct pipe_context *_pipe,
 877                                       struct pipe_sampler_view *_view)
 878 {
 879    galahad_sampler_view_destroy(galahad_context(_pipe),
 880                                  galahad_sampler_view(_view));
 881 }
 882
 883 static struct pipe_surface *
 884 galahad_context_create_surface(struct pipe_context *_pipe,
 885                                 struct pipe_resource *_resource,
 886                                 const struct pipe_surface *templ)
 887 {
 888    struct galahad_context *glhd_context = galahad_context(_pipe);
 889    struct galahad_resource *glhd_resource = galahad_resource(_resource);
 890    struct pipe_context *pipe = glhd_context->pipe;
 891    struct pipe_resource *resource = glhd_resource->resource;
 892    struct pipe_surface *result;
 893
 894    result = pipe->create_surface(pipe,
 895                                  resource,
 896                                  templ);
 897
 898    if (result)
 899       return galahad_surface_create(glhd_context, glhd_resource, result);
 900    return NULL;
 901 }
 902
 903 static void
 904 galahad_context_surface_destroy(struct pipe_context *_pipe,
 905                                 struct pipe_surface *_surface)
 906 {
 907    galahad_surface_destroy(galahad_context(_pipe),
 908                            galahad_surface(_surface));
 909 }
 910
 911
 912 static void *
 913 galahad_context_transfer_map(struct pipe_context *_context,
 914                              struct pipe_resource *_resource,
 915                              unsigned level,
 916                              unsigned usage,
 917                              const struct pipe_box *box,
 918                              struct pipe_transfer **transfer)
 919 {
 920    struct galahad_context *glhd_context = galahad_context(_context);
 921    struct galahad_resource *glhd_resource = galahad_resource(_resource);
 922    struct pipe_context *context = glhd_context->pipe;
 923    struct pipe_resource *resource = glhd_resource->resource;
 924    struct pipe_transfer *result;
 925    void *map;
 926
 927    map = context->transfer_map(context,
 928                                resource,
 929                                level,
 930                                usage,
 931                                box, &result);
 932    if (!map)
 933       return NULL;
 934
 935    glhd_resource->map_count++;
 936
 937    *transfer = galahad_transfer_create(glhd_context, glhd_resource, result);
 938    return *transfer ? map : NULL;
 939 }
 940
 941 static void
 942 galahad_context_transfer_flush_region(struct pipe_context *_context,
 943                                        struct pipe_transfer *_transfer,
 944                                        const struct pipe_box *box)
 945 {
 946    struct galahad_context *glhd_context = galahad_context(_context);
 947    struct galahad_transfer *glhd_transfer = galahad_transfer(_transfer);
 948    struct pipe_context *context = glhd_context->pipe;
 949    struct pipe_transfer *transfer = glhd_transfer->transfer;
 950
 951    context->transfer_flush_region(context,
 952                                   transfer,
 953                                   box);
 954 }
 955
 956 static void
 957 galahad_context_transfer_unmap(struct pipe_context *_context,
 958                                 struct pipe_transfer *_transfer)
 959 {
 960    struct galahad_context *glhd_context = galahad_context(_context);
 961    struct galahad_transfer *glhd_transfer = galahad_transfer(_transfer);
 962    struct pipe_context *context = glhd_context->pipe;
 963    struct pipe_transfer *transfer = glhd_transfer->transfer;
 964    struct galahad_resource *glhd_resource = galahad_resource(_transfer->resource);
 965
 966    if (glhd_resource->map_count < 1) {
 967       glhd_warn("context::transfer_unmap() called too many times"
 968                 " (count = %d)\n", glhd_resource->map_count);
 969    }
 970
 971    glhd_resource->map_count--;
 972
 973    context->transfer_unmap(context,
 974                            transfer);
 975
 976    galahad_transfer_destroy(galahad_context(_context),
 977                              galahad_transfer(_transfer));
 978 }
 979
 980
 981 static void
 982 galahad_context_transfer_inline_write(struct pipe_context *_context,
 983                                        struct pipe_resource *_resource,
 984                                        unsigned level,
 985                                        unsigned usage,
 986                                        const struct pipe_box *box,
 987                                        const void *data,
 988                                        unsigned stride,
 989                                        unsigned slice_stride)
 990 {
 991    struct galahad_context *glhd_context = galahad_context(_context);
 992    struct galahad_resource *glhd_resource = galahad_resource(_resource);
 993    struct pipe_context *context = glhd_context->pipe;
 994    struct pipe_resource *resource = glhd_resource->resource;
 995
 996    context->transfer_inline_write(context,
 997                                   resource,
 998                                   level,
 999                                   usage,
1000                                   box,
1001                                   data,
1002                                   stride,
1003                                   slice_stride);
1004 }
1005
1006
1007 static void
1008 galahad_context_render_condition(struct pipe_context *_context,
1009                                  struct pipe_query *query,
1010                                  uint mode)
1011 {
1012    struct galahad_context *glhd_context = galahad_context(_context);
1013    struct pipe_context *context = glhd_context->pipe;
1014
1015    context->render_condition(context, query, mode);
1016 }
1017
1018
1019 struct pipe_context *
1020 galahad_context_create(struct pipe_screen *_screen, struct pipe_context *pipe)
1021 {
1022    struct galahad_context *glhd_pipe;
1023    (void)galahad_screen(_screen);
1024
1025    glhd_pipe = CALLOC_STRUCT(galahad_context);
1026    if (!glhd_pipe) {
1027       return NULL;
1028    }
1029
1030    glhd_pipe->base.screen = _screen;
1031    glhd_pipe->base.priv = pipe->priv; /* expose wrapped data */
1032    glhd_pipe->base.draw = NULL;
1033
1034    glhd_pipe->base.destroy = galahad_context_destroy;
1035
1036 #define GLHD_PIPE_INIT(_member) \
1037    glhd_pipe->base . _member = pipe -> _member ? galahad_context_ ## _member : NULL
1038
1039    GLHD_PIPE_INIT(draw_vbo);
1040    GLHD_PIPE_INIT(render_condition);
1041    GLHD_PIPE_INIT(create_query);
1042    GLHD_PIPE_INIT(destroy_query);
1043    GLHD_PIPE_INIT(begin_query);
1044    GLHD_PIPE_INIT(end_query);
1045    GLHD_PIPE_INIT(get_query_result);
1046    GLHD_PIPE_INIT(create_blend_state);
1047    GLHD_PIPE_INIT(bind_blend_state);
1048    GLHD_PIPE_INIT(delete_blend_state);
1049    GLHD_PIPE_INIT(create_sampler_state);
1050    GLHD_PIPE_INIT(bind_fragment_sampler_states);
1051    GLHD_PIPE_INIT(bind_vertex_sampler_states);
1052    GLHD_PIPE_INIT(bind_geometry_sampler_states);
1053    //GLHD_PIPE_INIT(bind_compute_sampler_states);
1054    GLHD_PIPE_INIT(delete_sampler_state);
1055    GLHD_PIPE_INIT(create_rasterizer_state);
1056    GLHD_PIPE_INIT(bind_rasterizer_state);
1057    GLHD_PIPE_INIT(delete_rasterizer_state);
1058    GLHD_PIPE_INIT(create_depth_stencil_alpha_state);
1059    GLHD_PIPE_INIT(bind_depth_stencil_alpha_state);
1060    GLHD_PIPE_INIT(delete_depth_stencil_alpha_state);
1061    GLHD_PIPE_INIT(create_fs_state);
1062    GLHD_PIPE_INIT(bind_fs_state);
1063    GLHD_PIPE_INIT(delete_fs_state);
1064    GLHD_PIPE_INIT(create_vs_state);
1065    GLHD_PIPE_INIT(bind_vs_state);
1066    GLHD_PIPE_INIT(delete_vs_state);
1067    GLHD_PIPE_INIT(create_gs_state);
1068    GLHD_PIPE_INIT(bind_gs_state);
1069    GLHD_PIPE_INIT(delete_gs_state);
1070    GLHD_PIPE_INIT(create_vertex_elements_state);
1071    GLHD_PIPE_INIT(bind_vertex_elements_state);
1072    GLHD_PIPE_INIT(delete_vertex_elements_state);
1073    GLHD_PIPE_INIT(set_blend_color);
1074    GLHD_PIPE_INIT(set_stencil_ref);
1075    GLHD_PIPE_INIT(set_sample_mask);
1076    GLHD_PIPE_INIT(set_clip_state);
1077    GLHD_PIPE_INIT(set_constant_buffer);
1078    GLHD_PIPE_INIT(set_framebuffer_state);
1079    GLHD_PIPE_INIT(set_polygon_stipple);
1080    GLHD_PIPE_INIT(set_scissor_state);
1081    GLHD_PIPE_INIT(set_viewport_state);
1082    GLHD_PIPE_INIT(set_fragment_sampler_views);
1083    GLHD_PIPE_INIT(set_vertex_sampler_views);
1084    GLHD_PIPE_INIT(set_geometry_sampler_views);
1085    //GLHD_PIPE_INIT(set_compute_sampler_views);
1086    //GLHD_PIPE_INIT(set_shader_resources);
1087    GLHD_PIPE_INIT(set_vertex_buffers);
1088    GLHD_PIPE_INIT(set_index_buffer);
1089    GLHD_PIPE_INIT(create_stream_output_target);
1090    GLHD_PIPE_INIT(stream_output_target_destroy);
1091    GLHD_PIPE_INIT(set_stream_output_targets);
1092    GLHD_PIPE_INIT(resource_copy_region);
1093    GLHD_PIPE_INIT(blit);
1094    GLHD_PIPE_INIT(clear);
1095    GLHD_PIPE_INIT(clear_render_target);
1096    GLHD_PIPE_INIT(clear_depth_stencil);
1097    GLHD_PIPE_INIT(flush);
1098    GLHD_PIPE_INIT(create_sampler_view);
1099    GLHD_PIPE_INIT(sampler_view_destroy);
1100    GLHD_PIPE_INIT(create_surface);
1101    GLHD_PIPE_INIT(surface_destroy);
1102    GLHD_PIPE_INIT(transfer_map);
1103    GLHD_PIPE_INIT(transfer_flush_region);
1104    GLHD_PIPE_INIT(transfer_unmap);
1105    GLHD_PIPE_INIT(transfer_inline_write);
1106    //GLHD_PIPE_INIT(texture_barrier);
1107    //GLHD_PIPE_INIT(create_video_decoder);
1108    //GLHD_PIPE_INIT(create_video_buffer);
1109    //GLHD_PIPE_INIT(create_compute_state);
1110    //GLHD_PIPE_INIT(bind_compute_state);
1111    //GLHD_PIPE_INIT(delete_compute_state);
1112    //GLHD_PIPE_INIT(set_compute_resources);
1113    //GLHD_PIPE_INIT(set_global_binding);
1114    //GLHD_PIPE_INIT(launch_grid);
1115
1116 #undef GLHD_PIPE_INIT
1117
1118    glhd_pipe->pipe = pipe;
1119
1120    return &glhd_pipe->base;
1121 }