src/gallium/drivers/llvmpipe/lp_setup.c

   1 /**************************************************************************
   2  *
   3  * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
   4  * All Rights Reserved.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the
   8  * "Software"), to deal in the Software without restriction, including
   9  * without limitation the rights to use, copy, modify, merge, publish,
  10  * distribute, sub license, and/or sell copies of the Software, and to
  11  * permit persons to whom the Software is furnished to do so, subject to
  12  * the following conditions:
  13  *
  14  * The above copyright notice and this permission notice (including the
  15  * next paragraph) shall be included in all copies or substantial portions
  16  * of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  19  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  20  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  21  * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
  22  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  23  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  24  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  *
  26  **************************************************************************/
  27
  28 /**
  29  * Tiling engine.
  30  *
  31  * Builds per-tile display lists and executes them on calls to
  32  * lp_setup_flush().
  33  */
  34
  35 #include <limits.h>
  36
  37 #include "pipe/p_defines.h"
  38 #include "util/u_framebuffer.h"
  39 #include "util/u_inlines.h"
  40 #include "util/u_memory.h"
  41 #include "util/u_pack_color.h"
  42 #include "lp_context.h"
  43 #include "lp_memory.h"
  44 #include "lp_scene.h"
  45 #include "lp_texture.h"
  46 #include "lp_debug.h"
  47 #include "lp_fence.h"
  48 #include "lp_query.h"
  49 #include "lp_rast.h"
  50 #include "lp_setup_context.h"
  51 #include "lp_screen.h"
  52 #include "lp_state.h"
  53 #include "state_tracker/sw_winsys.h"
  54
  55 #include "draw/draw_context.h"
  56 #include "draw/draw_vbuf.h"
  57
  58
  59 static boolean set_scene_state( struct lp_setup_context *, enum setup_state,
  60                              const char *reason);
  61 static boolean try_update_scene_state( struct lp_setup_context *setup );
  62
  63
  64 static void
  65 lp_setup_get_empty_scene(struct lp_setup_context *setup)
  66 {
  67    assert(setup->scene == NULL);
  68
  69    setup->scene_idx++;
  70    setup->scene_idx %= Elements(setup->scenes);
  71
  72    setup->scene = setup->scenes[setup->scene_idx];
  73
  74    if (setup->scene->fence) {
  75       if (LP_DEBUG & DEBUG_SETUP)
  76          debug_printf("%s: wait for scene %d\n",
  77                       __FUNCTION__, setup->scene->fence->id);
  78
  79       lp_fence_wait(setup->scene->fence);
  80    }
  81
  82    lp_scene_begin_binning(setup->scene, &setup->fb);
  83
  84 }
  85
  86
  87 static void
  88 first_triangle( struct lp_setup_context *setup,
  89                 const float (*v0)[4],
  90                 const float (*v1)[4],
  91                 const float (*v2)[4])
  92 {
  93    assert(setup->state == SETUP_ACTIVE);
  94    lp_setup_choose_triangle( setup );
  95    setup->triangle( setup, v0, v1, v2 );
  96 }
  97
  98 static void
  99 first_line( struct lp_setup_context *setup,
 100             const float (*v0)[4],
 101             const float (*v1)[4])
 102 {
 103    assert(setup->state == SETUP_ACTIVE);
 104    lp_setup_choose_line( setup );
 105    setup->line( setup, v0, v1 );
 106 }
 107
 108 static void
 109 first_point( struct lp_setup_context *setup,
 110              const float (*v0)[4])
 111 {
 112    assert(setup->state == SETUP_ACTIVE);
 113    lp_setup_choose_point( setup );
 114    setup->point( setup, v0 );
 115 }
 116
 117 void lp_setup_reset( struct lp_setup_context *setup )
 118 {
 119    LP_DBG(DEBUG_SETUP, "%s\n", __FUNCTION__);
 120
 121    /* Reset derived state */
 122    setup->constants.stored_size = 0;
 123    setup->constants.stored_data = NULL;
 124    setup->fs.stored = NULL;
 125    setup->dirty = ~0;
 126
 127    /* no current bin */
 128    setup->scene = NULL;
 129
 130    /* Reset some state:
 131     */
 132    memset(&setup->clear, 0, sizeof setup->clear);
 133
 134    /* Have an explicit "start-binning" call and get rid of this
 135     * pointer twiddling?
 136     */
 137    setup->line = first_line;
 138    setup->point = first_point;
 139    setup->triangle = first_triangle;
 140 }
 141
 142
 143 /** Rasterize all scene's bins */
 144 static void
 145 lp_setup_rasterize_scene( struct lp_setup_context *setup )
 146 {
 147    struct lp_scene *scene = setup->scene;
 148    struct llvmpipe_screen *screen = llvmpipe_screen(scene->pipe->screen);
 149
 150    lp_scene_end_binning(scene);
 151
 152    lp_fence_reference(&setup->last_fence, scene->fence);
 153
 154    if (setup->last_fence)
 155       setup->last_fence->issued = TRUE;
 156
 157    pipe_mutex_lock(screen->rast_mutex);
 158    lp_rast_queue_scene(screen->rast, scene);
 159    lp_rast_finish(screen->rast);
 160    pipe_mutex_unlock(screen->rast_mutex);
 161
 162    lp_scene_end_rasterization(setup->scene);
 163    lp_setup_reset( setup );
 164
 165    LP_DBG(DEBUG_SETUP, "%s done \n", __FUNCTION__);
 166 }
 167
 168
 169
 170 static boolean
 171 begin_binning( struct lp_setup_context *setup )
 172 {
 173    struct lp_scene *scene = setup->scene;
 174    boolean need_zsload = FALSE;
 175    boolean ok;
 176    unsigned i, j;
 177
 178    assert(scene);
 179    assert(scene->fence == NULL);
 180
 181    /* Always create a fence:
 182     */
 183    scene->fence = lp_fence_create(MAX2(1, setup->num_threads));
 184    if (!scene->fence)
 185       return FALSE;
 186
 187    /* Initialize the bin flags and x/y coords:
 188     */
 189    for (i = 0; i < scene->tiles_x; i++) {
 190       for (j = 0; j < scene->tiles_y; j++) {
 191          scene->tile[i][j].x = i;
 192          scene->tile[i][j].y = j;
 193       }
 194    }
 195
 196    ok = try_update_scene_state(setup);
 197    if (!ok)
 198       return FALSE;
 199
 200    if (setup->fb.zsbuf &&
 201        ((setup->clear.flags & PIPE_CLEAR_DEPTHSTENCIL) != PIPE_CLEAR_DEPTHSTENCIL) &&
 202         util_format_is_depth_and_stencil(setup->fb.zsbuf->format))
 203       need_zsload = TRUE;
 204
 205    LP_DBG(DEBUG_SETUP, "%s color: %s depth: %s\n", __FUNCTION__,
 206           (setup->clear.flags & PIPE_CLEAR_COLOR) ? "clear": "load",
 207           need_zsload ? "clear": "load");
 208
 209    if (setup->fb.nr_cbufs) {
 210       if (setup->clear.flags & PIPE_CLEAR_COLOR) {
 211          ok = lp_scene_bin_everywhere( scene,
 212                                        LP_RAST_OP_CLEAR_COLOR,
 213                                        setup->clear.color );
 214          if (!ok)
 215             return FALSE;
 216       }
 217    }
 218
 219    if (setup->fb.zsbuf) {
 220       if (setup->clear.flags & PIPE_CLEAR_DEPTHSTENCIL) {
 221          if (!need_zsload)
 222             scene->has_depthstencil_clear = TRUE;
 223
 224          ok = lp_scene_bin_everywhere( scene,
 225                                        LP_RAST_OP_CLEAR_ZSTENCIL,
 226                                        lp_rast_arg_clearzs(
 227                                           setup->clear.zsvalue,
 228                                           setup->clear.zsmask));
 229          if (!ok)
 230             return FALSE;
 231       }
 232    }
 233
 234    if (setup->active_query) {
 235       ok = lp_scene_bin_everywhere( scene,
 236                                     LP_RAST_OP_BEGIN_QUERY,
 237                                     lp_rast_arg_query(setup->active_query) );
 238       if (!ok)
 239          return FALSE;
 240    }
 241
 242    setup->clear.flags = 0;
 243    setup->clear.zsmask = 0;
 244    setup->clear.zsvalue = 0;
 245
 246    LP_DBG(DEBUG_SETUP, "%s done\n", __FUNCTION__);
 247    return TRUE;
 248 }
 249
 250
 251 /* This basically bins and then flushes any outstanding full-screen
 252  * clears.
 253  *
 254  * TODO: fast path for fullscreen clears and no triangles.
 255  */
 256 static boolean
 257 execute_clears( struct lp_setup_context *setup )
 258 {
 259    LP_DBG(DEBUG_SETUP, "%s\n", __FUNCTION__);
 260
 261    return begin_binning( setup );
 262 }
 263
 264 const char *states[] = {
 265    "FLUSHED",
 266    "CLEARED",
 267    "ACTIVE "
 268 };
 269
 270
 271 static boolean
 272 set_scene_state( struct lp_setup_context *setup,
 273                  enum setup_state new_state,
 274                  const char *reason)
 275 {
 276    unsigned old_state = setup->state;
 277
 278    if (old_state == new_state)
 279       return TRUE;
 280
 281    if (LP_DEBUG & DEBUG_SCENE) {
 282       debug_printf("%s old %s new %s%s%s\n",
 283                    __FUNCTION__,
 284                    states[old_state],
 285                    states[new_state],
 286                    (new_state == SETUP_FLUSHED) ? ": " : "",
 287                    (new_state == SETUP_FLUSHED) ? reason : "");
 288
 289       if (new_state == SETUP_FLUSHED && setup->scene)
 290          lp_debug_draw_bins_by_cmd_length(setup->scene);
 291    }
 292
 293    /* wait for a free/empty scene
 294     */
 295    if (old_state == SETUP_FLUSHED)
 296       lp_setup_get_empty_scene(setup);
 297
 298    switch (new_state) {
 299    case SETUP_CLEARED:
 300       break;
 301
 302    case SETUP_ACTIVE:
 303       if (!begin_binning( setup ))
 304          goto fail;
 305       break;
 306
 307    case SETUP_FLUSHED:
 308       if (old_state == SETUP_CLEARED)
 309          if (!execute_clears( setup ))
 310             goto fail;
 311
 312       lp_setup_rasterize_scene( setup );
 313       assert(setup->scene == NULL);
 314       break;
 315
 316    default:
 317       assert(0 && "invalid setup state mode");
 318       goto fail;
 319    }
 320
 321    setup->state = new_state;
 322    return TRUE;
 323
 324 fail:
 325    if (setup->scene) {
 326       lp_scene_end_rasterization(setup->scene);
 327       setup->scene = NULL;
 328    }
 329
 330    setup->state = SETUP_FLUSHED;
 331    lp_setup_reset( setup );
 332    return FALSE;
 333 }
 334
 335
 336 void
 337 lp_setup_flush( struct lp_setup_context *setup,
 338                 struct pipe_fence_handle **fence,
 339                 const char *reason)
 340 {
 341    set_scene_state( setup, SETUP_FLUSHED, reason );
 342
 343    if (fence) {
 344       lp_fence_reference((struct lp_fence **)fence, setup->last_fence);
 345    }
 346 }
 347
 348
 349 void
 350 lp_setup_bind_framebuffer( struct lp_setup_context *setup,
 351                            const struct pipe_framebuffer_state *fb )
 352 {
 353    LP_DBG(DEBUG_SETUP, "%s\n", __FUNCTION__);
 354
 355    /* Flush any old scene.
 356     */
 357    set_scene_state( setup, SETUP_FLUSHED, __FUNCTION__ );
 358
 359    /*
 360     * Ensure the old scene is not reused.
 361     */
 362    assert(!setup->scene);
 363
 364    /* Set new state.  This will be picked up later when we next need a
 365     * scene.
 366     */
 367    util_copy_framebuffer_state(&setup->fb, fb);
 368    setup->framebuffer.x0 = 0;
 369    setup->framebuffer.y0 = 0;
 370    setup->framebuffer.x1 = fb->width-1;
 371    setup->framebuffer.y1 = fb->height-1;
 372    setup->dirty |= LP_SETUP_NEW_SCISSOR;
 373 }
 374
 375
 376 static boolean
 377 lp_setup_try_clear( struct lp_setup_context *setup,
 378                     const float *color,
 379                     double depth,
 380                     unsigned stencil,
 381                     unsigned flags )
 382 {
 383    uint32_t zsmask = 0;
 384    uint32_t zsvalue = 0;
 385    union lp_rast_cmd_arg color_arg;
 386    unsigned i;
 387
 388    LP_DBG(DEBUG_SETUP, "%s state %d\n", __FUNCTION__, setup->state);
 389
 390    if (flags & PIPE_CLEAR_COLOR) {
 391       for (i = 0; i < 4; i++)
 392          color_arg.clear_color[i] = float_to_ubyte(color[i]);
 393    }
 394
 395    if (flags & PIPE_CLEAR_DEPTHSTENCIL) {
 396       uint32_t zmask = (flags & PIPE_CLEAR_DEPTH) ? ~0 : 0;
 397       uint32_t smask = (flags & PIPE_CLEAR_STENCIL) ? ~0 : 0;
 398
 399       zsvalue = util_pack_z_stencil(setup->fb.zsbuf->format,
 400                                     depth,
 401                                     stencil);
 402
 403
 404       zsmask = util_pack_mask_z_stencil(setup->fb.zsbuf->format,
 405                                         zmask,
 406                                         smask);
 407
 408       zsvalue &= zsmask;
 409    }
 410
 411    if (setup->state == SETUP_ACTIVE) {
 412       struct lp_scene *scene = setup->scene;
 413
 414       /* Add the clear to existing scene.  In the unusual case where
 415        * both color and depth-stencil are being cleared when there's
 416        * already been some rendering, we could discard the currently
 417        * binned scene and start again, but I don't see that as being
 418        * a common usage.
 419        */
 420       if (flags & PIPE_CLEAR_COLOR) {
 421          if (!lp_scene_bin_everywhere( scene,
 422                                        LP_RAST_OP_CLEAR_COLOR,
 423                                        color_arg ))
 424             return FALSE;
 425       }
 426
 427       if (flags & PIPE_CLEAR_DEPTHSTENCIL) {
 428          if (!lp_scene_bin_everywhere( scene,
 429                                        LP_RAST_OP_CLEAR_ZSTENCIL,
 430                                        lp_rast_arg_clearzs(zsvalue, zsmask) ))
 431             return FALSE;
 432       }
 433    }
 434    else {
 435       /* Put ourselves into the 'pre-clear' state, specifically to try
 436        * and accumulate multiple clears to color and depth_stencil
 437        * buffers which the app or state-tracker might issue
 438        * separately.
 439        */
 440       set_scene_state( setup, SETUP_CLEARED, __FUNCTION__ );
 441
 442       setup->clear.flags |= flags;
 443
 444       if (flags & PIPE_CLEAR_DEPTHSTENCIL) {
 445          setup->clear.zsmask |= zsmask;
 446          setup->clear.zsvalue =
 447             (setup->clear.zsvalue & ~zsmask) | (zsvalue & zsmask);
 448       }
 449
 450       if (flags & PIPE_CLEAR_COLOR) {
 451          memcpy(setup->clear.color.clear_color,
 452                 &color_arg,
 453                 sizeof setup->clear.color.clear_color);
 454       }
 455    }
 456
 457    return TRUE;
 458 }
 459
 460 void
 461 lp_setup_clear( struct lp_setup_context *setup,
 462                 const float *color,
 463                 double depth,
 464                 unsigned stencil,
 465                 unsigned flags )
 466 {
 467    if (!lp_setup_try_clear( setup, color, depth, stencil, flags )) {
 468       lp_setup_flush(setup, NULL, __FUNCTION__);
 469
 470       if (!lp_setup_try_clear( setup, color, depth, stencil, flags ))
 471          assert(0);
 472    }
 473 }
 474
 475
 476
 477
 478
 479 void
 480 lp_setup_set_triangle_state( struct lp_setup_context *setup,
 481                              unsigned cull_mode,
 482                              boolean ccw_is_frontface,
 483                              boolean scissor,
 484                              boolean gl_rasterization_rules)
 485 {
 486    LP_DBG(DEBUG_SETUP, "%s\n", __FUNCTION__);
 487
 488    setup->ccw_is_frontface = ccw_is_frontface;
 489    setup->cullmode = cull_mode;
 490    setup->triangle = first_triangle;
 491    setup->pixel_offset = gl_rasterization_rules ? 0.5f : 0.0f;
 492
 493    if (setup->scissor_test != scissor) {
 494       setup->dirty |= LP_SETUP_NEW_SCISSOR;
 495       setup->scissor_test = scissor;
 496    }
 497 }
 498
 499 void
 500 lp_setup_set_line_state( struct lp_setup_context *setup,
 501                          float line_width)
 502 {
 503    LP_DBG(DEBUG_SETUP, "%s\n", __FUNCTION__);
 504
 505    setup->line_width = line_width;
 506 }
 507
 508 void
 509 lp_setup_set_point_state( struct lp_setup_context *setup,
 510                           float point_size,
 511                           boolean point_size_per_vertex,
 512                           uint sprite_coord_enable,
 513                           uint sprite_coord_origin)
 514 {
 515    LP_DBG(DEBUG_SETUP, "%s\n", __FUNCTION__);
 516
 517    setup->point_size = point_size;
 518    setup->sprite_coord_enable = sprite_coord_enable;
 519    setup->sprite_coord_origin = sprite_coord_origin;
 520    setup->point_size_per_vertex = point_size_per_vertex;
 521 }
 522
 523 void
 524 lp_setup_set_setup_variant( struct lp_setup_context *setup,
 525                             const struct lp_setup_variant *variant)
 526 {
 527    LP_DBG(DEBUG_SETUP, "%s\n", __FUNCTION__);
 528
 529    setup->setup.variant = variant;
 530 }
 531
 532 void
 533 lp_setup_set_fs_variant( struct lp_setup_context *setup,
 534                          struct lp_fragment_shader_variant *variant)
 535 {
 536    LP_DBG(DEBUG_SETUP, "%s %p\n", __FUNCTION__,
 537           variant);
 538    /* FIXME: reference count */
 539
 540    setup->fs.current.variant = variant;
 541    setup->dirty |= LP_SETUP_NEW_FS;
 542 }
 543
 544 void
 545 lp_setup_set_fs_constants(struct lp_setup_context *setup,
 546                           struct pipe_resource *buffer)
 547 {
 548    LP_DBG(DEBUG_SETUP, "%s %p\n", __FUNCTION__, (void *) buffer);
 549
 550    pipe_resource_reference(&setup->constants.current, buffer);
 551
 552    setup->dirty |= LP_SETUP_NEW_CONSTANTS;
 553 }
 554
 555
 556 void
 557 lp_setup_set_alpha_ref_value( struct lp_setup_context *setup,
 558                               float alpha_ref_value )
 559 {
 560    LP_DBG(DEBUG_SETUP, "%s %f\n", __FUNCTION__, alpha_ref_value);
 561
 562    if(setup->fs.current.jit_context.alpha_ref_value != alpha_ref_value) {
 563       setup->fs.current.jit_context.alpha_ref_value = alpha_ref_value;
 564       setup->dirty |= LP_SETUP_NEW_FS;
 565    }
 566 }
 567
 568 void
 569 lp_setup_set_stencil_ref_values( struct lp_setup_context *setup,
 570                                  const ubyte refs[2] )
 571 {
 572    LP_DBG(DEBUG_SETUP, "%s %d %d\n", __FUNCTION__, refs[0], refs[1]);
 573
 574    if (setup->fs.current.jit_context.stencil_ref_front != refs[0] ||
 575        setup->fs.current.jit_context.stencil_ref_back != refs[1]) {
 576       setup->fs.current.jit_context.stencil_ref_front = refs[0];
 577       setup->fs.current.jit_context.stencil_ref_back = refs[1];
 578       setup->dirty |= LP_SETUP_NEW_FS;
 579    }
 580 }
 581
 582 void
 583 lp_setup_set_blend_color( struct lp_setup_context *setup,
 584                           const struct pipe_blend_color *blend_color )
 585 {
 586    LP_DBG(DEBUG_SETUP, "%s\n", __FUNCTION__);
 587
 588    assert(blend_color);
 589
 590    if(memcmp(&setup->blend_color.current, blend_color, sizeof *blend_color) != 0) {
 591       memcpy(&setup->blend_color.current, blend_color, sizeof *blend_color);
 592       setup->dirty |= LP_SETUP_NEW_BLEND_COLOR;
 593    }
 594 }
 595
 596
 597 void
 598 lp_setup_set_scissor( struct lp_setup_context *setup,
 599                       const struct pipe_scissor_state *scissor )
 600 {
 601    LP_DBG(DEBUG_SETUP, "%s\n", __FUNCTION__);
 602
 603    assert(scissor);
 604
 605    setup->scissor.x0 = scissor->minx;
 606    setup->scissor.x1 = scissor->maxx-1;
 607    setup->scissor.y0 = scissor->miny;
 608    setup->scissor.y1 = scissor->maxy-1;
 609    setup->dirty |= LP_SETUP_NEW_SCISSOR;
 610 }
 611
 612
 613 void
 614 lp_setup_set_flatshade_first( struct lp_setup_context *setup,
 615                               boolean flatshade_first )
 616 {
 617    setup->flatshade_first = flatshade_first;
 618 }
 619
 620
 621 void
 622 lp_setup_set_vertex_info( struct lp_setup_context *setup,
 623                           struct vertex_info *vertex_info )
 624 {
 625    /* XXX: just silently holding onto the pointer:
 626     */
 627    setup->vertex_info = vertex_info;
 628 }
 629
 630
 631 /**
 632  * Called during state validation when LP_NEW_SAMPLER_VIEW is set.
 633  */
 634 void
 635 lp_setup_set_fragment_sampler_views(struct lp_setup_context *setup,
 636                                     unsigned num,
 637                                     struct pipe_sampler_view **views)
 638 {
 639    unsigned i;
 640
 641    LP_DBG(DEBUG_SETUP, "%s\n", __FUNCTION__);
 642
 643    assert(num <= PIPE_MAX_SAMPLERS);
 644
 645    for (i = 0; i < PIPE_MAX_SAMPLERS; i++) {
 646       struct pipe_sampler_view *view = i < num ? views[i] : NULL;
 647
 648       if (view) {
 649          struct pipe_resource *tex = view->texture;
 650          struct llvmpipe_resource *lp_tex = llvmpipe_resource(tex);
 651          struct lp_jit_texture *jit_tex;
 652          jit_tex = &setup->fs.current.jit_context.textures[i];
 653          jit_tex->width = tex->width0;
 654          jit_tex->height = tex->height0;
 655          jit_tex->depth = tex->depth0;
 656          jit_tex->first_level = view->u.tex.first_level;
 657          jit_tex->last_level = tex->last_level;
 658
 659          /* We're referencing the texture's internal data, so save a
 660           * reference to it.
 661           */
 662          pipe_resource_reference(&setup->fs.current_tex[i], tex);
 663
 664          if (!lp_tex->dt) {
 665             /* regular texture - setup array of mipmap level pointers */
 666             int j;
 667             for (j = view->u.tex.first_level; j <= tex->last_level; j++) {
 668                jit_tex->data[j] =
 669                   llvmpipe_get_texture_image_all(lp_tex, j, LP_TEX_USAGE_READ,
 670                                                  LP_TEX_LAYOUT_LINEAR);
 671                jit_tex->row_stride[j] = lp_tex->row_stride[j];
 672                jit_tex->img_stride[j] = lp_tex->img_stride[j];
 673
 674                if ((LP_PERF & PERF_TEX_MEM) ||
 675                    !jit_tex->data[j]) {
 676                   /* out of memory - use dummy tile memory */
 677                   jit_tex->data[j] = lp_dummy_tile;
 678                   jit_tex->width = TILE_SIZE/8;
 679                   jit_tex->height = TILE_SIZE/8;
 680                   jit_tex->depth = 1;
 681                   jit_tex->first_level = 0;
 682                   jit_tex->last_level = 0;
 683                   jit_tex->row_stride[j] = 0;
 684                   jit_tex->img_stride[j] = 0;
 685                }
 686             }
 687          }
 688          else {
 689             /* display target texture/surface */
 690             /*
 691              * XXX: Where should this be unmapped?
 692              */
 693             struct llvmpipe_screen *screen = llvmpipe_screen(tex->screen);
 694             struct sw_winsys *winsys = screen->winsys;
 695             jit_tex->data[0] = winsys->displaytarget_map(winsys, lp_tex->dt,
 696                                                          PIPE_TRANSFER_READ);
 697             jit_tex->row_stride[0] = lp_tex->row_stride[0];
 698             jit_tex->img_stride[0] = lp_tex->img_stride[0];
 699             assert(jit_tex->data[0]);
 700          }
 701       }
 702    }
 703
 704    setup->dirty |= LP_SETUP_NEW_FS;
 705 }
 706
 707
 708 /**
 709  * Called during state validation when LP_NEW_SAMPLER is set.
 710  */
 711 void
 712 lp_setup_set_fragment_sampler_state(struct lp_setup_context *setup,
 713                                     unsigned num,
 714                                     const struct pipe_sampler_state **samplers)
 715 {
 716    unsigned i;
 717
 718    LP_DBG(DEBUG_SETUP, "%s\n", __FUNCTION__);
 719
 720    assert(num <= PIPE_MAX_SAMPLERS);
 721
 722    for (i = 0; i < PIPE_MAX_SAMPLERS; i++) {
 723       const struct pipe_sampler_state *sampler = i < num ? samplers[i] : NULL;
 724
 725       if (sampler) {
 726          struct lp_jit_texture *jit_tex;
 727          jit_tex = &setup->fs.current.jit_context.textures[i];
 728
 729          jit_tex->min_lod = sampler->min_lod;
 730          jit_tex->max_lod = sampler->max_lod;
 731          jit_tex->lod_bias = sampler->lod_bias;
 732          COPY_4V(jit_tex->border_color, sampler->border_color);
 733       }
 734    }
 735
 736    setup->dirty |= LP_SETUP_NEW_FS;
 737 }
 738
 739
 740 /**
 741  * Is the given texture referenced by any scene?
 742  * Note: we have to check all scenes including any scenes currently
 743  * being rendered and the current scene being built.
 744  */
 745 unsigned
 746 lp_setup_is_resource_referenced( const struct lp_setup_context *setup,
 747                                 const struct pipe_resource *texture )
 748 {
 749    unsigned i;
 750
 751    /* check the render targets */
 752    for (i = 0; i < setup->fb.nr_cbufs; i++) {
 753       if (setup->fb.cbufs[i]->texture == texture)
 754          return LP_REFERENCED_FOR_READ | LP_REFERENCED_FOR_WRITE;
 755    }
 756    if (setup->fb.zsbuf && setup->fb.zsbuf->texture == texture) {
 757       return LP_REFERENCED_FOR_READ | LP_REFERENCED_FOR_WRITE;
 758    }
 759
 760    /* check textures referenced by the scene */
 761    for (i = 0; i < Elements(setup->scenes); i++) {
 762       if (lp_scene_is_resource_referenced(setup->scenes[i], texture)) {
 763          return LP_REFERENCED_FOR_READ;
 764       }
 765    }
 766
 767    return LP_UNREFERENCED;
 768 }
 769
 770
 771 /**
 772  * Called by vbuf code when we're about to draw something.
 773  */
 774 static boolean
 775 try_update_scene_state( struct lp_setup_context *setup )
 776 {
 777    boolean new_scene = (setup->fs.stored == NULL);
 778    struct lp_scene *scene = setup->scene;
 779
 780    assert(scene);
 781
 782    if(setup->dirty & LP_SETUP_NEW_BLEND_COLOR) {
 783       uint8_t *stored;
 784       unsigned i, j;
 785
 786       stored = lp_scene_alloc_aligned(scene, 4 * 16, 16);
 787       if (!stored) {
 788          assert(!new_scene);
 789          return FALSE;
 790       }
 791
 792       /* smear each blend color component across 16 ubyte elements */
 793       for (i = 0; i < 4; ++i) {
 794          uint8_t c = float_to_ubyte(setup->blend_color.current.color[i]);
 795          for (j = 0; j < 16; ++j)
 796             stored[i*16 + j] = c;
 797       }
 798
 799       setup->blend_color.stored = stored;
 800       setup->fs.current.jit_context.blend_color = setup->blend_color.stored;
 801       setup->dirty |= LP_SETUP_NEW_FS;
 802    }
 803
 804    if(setup->dirty & LP_SETUP_NEW_CONSTANTS) {
 805       struct pipe_resource *buffer = setup->constants.current;
 806
 807       if(buffer) {
 808          unsigned current_size = buffer->width0;
 809          const void *current_data = llvmpipe_resource_data(buffer);
 810
 811          /* TODO: copy only the actually used constants? */
 812
 813          if(setup->constants.stored_size != current_size ||
 814             !setup->constants.stored_data ||
 815             memcmp(setup->constants.stored_data,
 816                    current_data,
 817                    current_size) != 0) {
 818             void *stored;
 819
 820             stored = lp_scene_alloc(scene, current_size);
 821             if (!stored) {
 822                assert(!new_scene);
 823                return FALSE;
 824             }
 825
 826             memcpy(stored,
 827                    current_data,
 828                    current_size);
 829             setup->constants.stored_size = current_size;
 830             setup->constants.stored_data = stored;
 831          }
 832       }
 833       else {
 834          setup->constants.stored_size = 0;
 835          setup->constants.stored_data = NULL;
 836       }
 837
 838       setup->fs.current.jit_context.constants = setup->constants.stored_data;
 839       setup->dirty |= LP_SETUP_NEW_FS;
 840    }
 841
 842
 843    if (setup->dirty & LP_SETUP_NEW_FS) {
 844       if (!setup->fs.stored ||
 845           memcmp(setup->fs.stored,
 846                  &setup->fs.current,
 847                  sizeof setup->fs.current) != 0)
 848       {
 849          struct lp_rast_state *stored;
 850          uint i;
 851
 852          /* The fs state that's been stored in the scene is different from
 853           * the new, current state.  So allocate a new lp_rast_state object
 854           * and append it to the bin's setup data buffer.
 855           */
 856          stored = (struct lp_rast_state *) lp_scene_alloc(scene, sizeof *stored);
 857          if (!stored) {
 858             assert(!new_scene);
 859             return FALSE;
 860          }
 861
 862          memcpy(stored,
 863                 &setup->fs.current,
 864                 sizeof setup->fs.current);
 865          setup->fs.stored = stored;
 866
 867          /* The scene now references the textures in the rasterization
 868           * state record.  Note that now.
 869           */
 870          for (i = 0; i < Elements(setup->fs.current_tex); i++) {
 871             if (setup->fs.current_tex[i]) {
 872                if (!lp_scene_add_resource_reference(scene,
 873                                                     setup->fs.current_tex[i],
 874                                                     new_scene)) {
 875                   assert(!new_scene);
 876                   return FALSE;
 877                }
 878             }
 879          }
 880       }
 881    }
 882
 883    if (setup->dirty & LP_SETUP_NEW_SCISSOR) {
 884       setup->draw_region = setup->framebuffer;
 885       if (setup->scissor_test) {
 886          u_rect_possible_intersection(&setup->scissor,
 887                                       &setup->draw_region);
 888       }
 889    }
 890
 891    setup->dirty = 0;
 892
 893    assert(setup->fs.stored);
 894    return TRUE;
 895 }
 896
 897 boolean
 898 lp_setup_update_state( struct lp_setup_context *setup,
 899                        boolean update_scene )
 900 {
 901    /* Some of the 'draw' pipeline stages may have changed some driver state.
 902     * Make sure we've processed those state changes before anything else.
 903     *
 904     * XXX this is the only place where llvmpipe_context is used in the
 905     * setup code.  This may get refactored/changed...
 906     */
 907    {
 908       struct llvmpipe_context *lp = llvmpipe_context(setup->pipe);
 909       if (lp->dirty) {
 910          llvmpipe_update_derived(lp);
 911       }
 912
 913       if (lp->setup->dirty) {
 914          llvmpipe_update_setup(lp);
 915       }
 916
 917       assert(setup->setup.variant);
 918
 919       /* Will probably need to move this somewhere else, just need
 920        * to know about vertex shader point size attribute.
 921        */
 922       setup->psize = lp->psize_slot;
 923
 924       assert(lp->dirty == 0);
 925
 926       assert(lp->setup_variant.key.size ==
 927              setup->setup.variant->key.size);
 928
 929       assert(memcmp(&lp->setup_variant.key,
 930                     &setup->setup.variant->key,
 931                     setup->setup.variant->key.size) == 0);
 932    }
 933
 934    if (update_scene && setup->state != SETUP_ACTIVE) {
 935       if (!set_scene_state( setup, SETUP_ACTIVE, __FUNCTION__ ))
 936          return FALSE;
 937    }
 938
 939    /* Only call into update_scene_state() if we already have a
 940     * scene:
 941     */
 942    if (update_scene && setup->scene) {
 943       assert(setup->state == SETUP_ACTIVE);
 944
 945       if (try_update_scene_state(setup))
 946          return TRUE;
 947
 948       /* Update failed, try to restart the scene.
 949        *
 950        * Cannot call lp_setup_flush_and_restart() directly here
 951        * because of potential recursion.
 952        */
 953       if (!set_scene_state(setup, SETUP_FLUSHED, __FUNCTION__))
 954          return FALSE;
 955
 956       if (!set_scene_state(setup, SETUP_ACTIVE, __FUNCTION__))
 957          return FALSE;
 958
 959       if (!setup->scene)
 960          return FALSE;
 961
 962       return try_update_scene_state(setup);
 963    }
 964
 965    return TRUE;
 966 }
 967
 968
 969
 970 /* Only caller is lp_setup_vbuf_destroy()
 971  */
 972 void
 973 lp_setup_destroy( struct lp_setup_context *setup )
 974 {
 975    uint i;
 976
 977    lp_setup_reset( setup );
 978
 979    util_unreference_framebuffer_state(&setup->fb);
 980
 981    for (i = 0; i < Elements(setup->fs.current_tex); i++) {
 982       pipe_resource_reference(&setup->fs.current_tex[i], NULL);
 983    }
 984
 985    pipe_resource_reference(&setup->constants.current, NULL);
 986
 987    /* free the scenes in the 'empty' queue */
 988    for (i = 0; i < Elements(setup->scenes); i++) {
 989       struct lp_scene *scene = setup->scenes[i];
 990
 991       if (scene->fence)
 992          lp_fence_wait(scene->fence);
 993
 994       lp_scene_destroy(scene);
 995    }
 996
 997    lp_fence_reference(&setup->last_fence, NULL);
 998
 999    FREE( setup );
1000 }
1001
1002
1003 /**
1004  * Create a new primitive tiling engine.  Plug it into the backend of
1005  * the draw module.  Currently also creates a rasterizer to use with
1006  * it.
1007  */
1008 struct lp_setup_context *
1009 lp_setup_create( struct pipe_context *pipe,
1010                  struct draw_context *draw )
1011 {
1012    struct llvmpipe_screen *screen = llvmpipe_screen(pipe->screen);
1013    struct lp_setup_context *setup = CALLOC_STRUCT(lp_setup_context);
1014    unsigned i;
1015
1016    if (!setup)
1017       return NULL;
1018
1019    lp_setup_init_vbuf(setup);
1020
1021    /* Used only in update_state():
1022     */
1023    setup->pipe = pipe;
1024
1025
1026    setup->num_threads = screen->num_threads;
1027    setup->vbuf = draw_vbuf_stage(draw, &setup->base);
1028    if (!setup->vbuf)
1029       goto fail;
1030
1031    draw_set_rasterize_stage(draw, setup->vbuf);
1032    draw_set_render(draw, &setup->base);
1033
1034    /* create some empty scenes */
1035    for (i = 0; i < MAX_SCENES; i++) {
1036       setup->scenes[i] = lp_scene_create( pipe );
1037    }
1038
1039    setup->triangle = first_triangle;
1040    setup->line     = first_line;
1041    setup->point    = first_point;
1042
1043    setup->dirty = ~0;
1044
1045    return setup;
1046
1047 fail:
1048    if (setup->vbuf)
1049       ;
1050
1051    FREE(setup);
1052    return NULL;
1053 }
1054
1055
1056 /**
1057  * Put a BeginQuery command into all bins.
1058  */
1059 void
1060 lp_setup_begin_query(struct lp_setup_context *setup,
1061                      struct llvmpipe_query *pq)
1062 {
1063    /* init the query to its beginning state */
1064    assert(setup->active_query == NULL);
1065
1066    setup->active_query = pq;
1067
1068    set_scene_state(setup, SETUP_ACTIVE, "begin_query");
1069
1070    if (setup->scene) {
1071       if (!lp_scene_bin_everywhere(setup->scene,
1072                                    LP_RAST_OP_BEGIN_QUERY,
1073                                    lp_rast_arg_query(pq))) {
1074
1075          if (!lp_setup_flush_and_restart(setup))
1076             return;
1077
1078          if (!lp_scene_bin_everywhere(setup->scene,
1079                                       LP_RAST_OP_BEGIN_QUERY,
1080                                       lp_rast_arg_query(pq))) {
1081             return;
1082          }
1083       }
1084    }
1085 }
1086
1087
1088 /**
1089  * Put an EndQuery command into all bins.
1090  */
1091 void
1092 lp_setup_end_query(struct lp_setup_context *setup, struct llvmpipe_query *pq)
1093 {
1094    union lp_rast_cmd_arg dummy = { 0 };
1095
1096    set_scene_state(setup, SETUP_ACTIVE, "end_query");
1097
1098    assert(setup->active_query == pq);
1099    setup->active_query = NULL;
1100
1101    /* Setup will automatically re-issue any query which carried over a
1102     * scene boundary, and the rasterizer automatically "ends" queries
1103     * which are active at the end of a scene, so there is no need to
1104     * retry this commands on failure.
1105     */
1106    if (setup->scene) {
1107       /* pq->fence should be the fence of the *last* scene which
1108        * contributed to the query result.
1109        */
1110       lp_fence_reference(&pq->fence, setup->scene->fence);
1111
1112       if (!lp_scene_bin_everywhere(setup->scene,
1113                                    LP_RAST_OP_END_QUERY,
1114                                    dummy)) {
1115          lp_setup_flush(setup, NULL, __FUNCTION__);
1116       }
1117    }
1118    else {
1119       lp_fence_reference(&pq->fence, setup->last_fence);
1120    }
1121 }
1122
1123
1124 boolean
1125 lp_setup_flush_and_restart(struct lp_setup_context *setup)
1126 {
1127    if (0) debug_printf("%s\n", __FUNCTION__);
1128
1129    assert(setup->state == SETUP_ACTIVE);
1130
1131    if (!set_scene_state(setup, SETUP_FLUSHED, __FUNCTION__))
1132       return FALSE;
1133
1134    if (!lp_setup_update_state(setup, TRUE))
1135       return FALSE;
1136
1137    return TRUE;
1138 }
1139
1140