src/mesa/drivers/dri/i965/brw_vs.c

   1 /*
   2  Copyright (C) Intel Corp.  2006.  All Rights Reserved.
   3  Intel funded Tungsten Graphics (http://www.tungstengraphics.com) to
   4  develop this 3D driver.
   5
   6  Permission is hereby granted, free of charge, to any person obtaining
   7  a 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, sublicense, 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
  16  portions of the Software.
  17
  18  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  19  EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  20  MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
  21  IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
  22  LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  23  OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  24  WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25
  26  **********************************************************************/
  27  /*
  28   * Authors:
  29   *   Keith Whitwell <keith@tungstengraphics.com>
  30   */
  31
  32
  33 #include "main/compiler.h"
  34 #include "brw_context.h"
  35 #include "brw_vs.h"
  36 #include "brw_util.h"
  37 #include "brw_state.h"
  38 #include "program/prog_print.h"
  39 #include "program/prog_parameter.h"
  40
  41 #include "glsl/ralloc.h"
  42
  43 static inline void assign_vue_slot(struct brw_vue_map *vue_map,
  44                                    int varying)
  45 {
  46    /* Make sure this varying hasn't been assigned a slot already */
  47    assert (vue_map->varying_to_slot[varying] == -1);
  48
  49    vue_map->varying_to_slot[varying] = vue_map->num_slots;
  50    vue_map->slot_to_varying[vue_map->num_slots++] = varying;
  51 }
  52
  53 /**
  54  * Compute the VUE map for vertex shader program.
  55  *
  56  * Note that consumers of this map using cache keys must include
  57  * prog_data->userclip and prog_data->outputs_written in their key
  58  * (generated by CACHE_NEW_VS_PROG).
  59  */
  60 void
  61 brw_compute_vue_map(struct brw_context *brw, struct brw_vue_map *vue_map,
  62                     GLbitfield64 slots_valid, bool userclip_active)
  63 {
  64    vue_map->slots_valid = slots_valid;
  65    int i;
  66
  67    /* Make sure that the values we store in vue_map->varying_to_slot and
  68     * vue_map->slot_to_varying won't overflow the signed chars that are used
  69     * to store them.  Note that since vue_map->slot_to_varying sometimes holds
  70     * values equal to BRW_VARYING_SLOT_COUNT, we need to ensure that
  71     * BRW_VARYING_SLOT_COUNT is <= 127, not 128.
  72     */
  73    STATIC_ASSERT(BRW_VARYING_SLOT_COUNT <= 127);
  74
  75    vue_map->num_slots = 0;
  76    for (i = 0; i < BRW_VARYING_SLOT_COUNT; ++i) {
  77       vue_map->varying_to_slot[i] = -1;
  78       vue_map->slot_to_varying[i] = BRW_VARYING_SLOT_COUNT;
  79    }
  80
  81    /* VUE header: format depends on chip generation and whether clipping is
  82     * enabled.
  83     */
  84    switch (brw->gen) {
  85    case 4:
  86    case 5:
  87       /* There are 8 dwords in VUE header pre-Ironlake:
  88        * dword 0-3 is indices, point width, clip flags.
  89        * dword 4-7 is ndc position
  90        * dword 8-11 is the first vertex data.
  91        *
  92        * On Ironlake the VUE header is nominally 20 dwords, but the hardware
  93        * will accept the same header layout as Gen4 [and should be a bit faster]
  94        */
  95       assign_vue_slot(vue_map, VARYING_SLOT_PSIZ);
  96       assign_vue_slot(vue_map, BRW_VARYING_SLOT_NDC);
  97       assign_vue_slot(vue_map, VARYING_SLOT_POS);
  98       break;
  99    case 6:
 100    case 7:
 101       /* There are 8 or 16 DWs (D0-D15) in VUE header on Sandybridge:
 102        * dword 0-3 of the header is indices, point width, clip flags.
 103        * dword 4-7 is the 4D space position
 104        * dword 8-15 of the vertex header is the user clip distance if
 105        * enabled.
 106        * dword 8-11 or 16-19 is the first vertex element data we fill.
 107        */
 108       assign_vue_slot(vue_map, VARYING_SLOT_PSIZ);
 109       assign_vue_slot(vue_map, VARYING_SLOT_POS);
 110       if (userclip_active) {
 111          assign_vue_slot(vue_map, VARYING_SLOT_CLIP_DIST0);
 112          assign_vue_slot(vue_map, VARYING_SLOT_CLIP_DIST1);
 113       }
 114       /* front and back colors need to be consecutive so that we can use
 115        * ATTRIBUTE_SWIZZLE_INPUTATTR_FACING to swizzle them when doing
 116        * two-sided color.
 117        */
 118       if (slots_valid & BITFIELD64_BIT(VARYING_SLOT_COL0))
 119          assign_vue_slot(vue_map, VARYING_SLOT_COL0);
 120       if (slots_valid & BITFIELD64_BIT(VARYING_SLOT_BFC0))
 121          assign_vue_slot(vue_map, VARYING_SLOT_BFC0);
 122       if (slots_valid & BITFIELD64_BIT(VARYING_SLOT_COL1))
 123          assign_vue_slot(vue_map, VARYING_SLOT_COL1);
 124       if (slots_valid & BITFIELD64_BIT(VARYING_SLOT_BFC1))
 125          assign_vue_slot(vue_map, VARYING_SLOT_BFC1);
 126       break;
 127    default:
 128       assert (!"VUE map not known for this chip generation");
 129       break;
 130    }
 131
 132    /* The hardware doesn't care about the rest of the vertex outputs, so just
 133     * assign them contiguously.  Don't reassign outputs that already have a
 134     * slot.
 135     *
 136     * We generally don't need to assign a slot for VARYING_SLOT_CLIP_VERTEX,
 137     * since it's encoded as the clip distances by emit_clip_distances().
 138     * However, it may be output by transform feedback, and we'd rather not
 139     * recompute state when TF changes, so we just always include it.
 140     */
 141    for (int i = 0; i < VARYING_SLOT_MAX; ++i) {
 142       if ((slots_valid & BITFIELD64_BIT(i)) &&
 143           vue_map->varying_to_slot[i] == -1) {
 144          assign_vue_slot(vue_map, i);
 145       }
 146    }
 147 }
 148
 149
 150 /**
 151  * Decide which set of clip planes should be used when clipping via
 152  * gl_Position or gl_ClipVertex.
 153  */
 154 gl_clip_plane *brw_select_clip_planes(struct gl_context *ctx)
 155 {
 156    if (ctx->Shader.CurrentVertexProgram) {
 157       /* There is currently a GLSL vertex shader, so clip according to GLSL
 158        * rules, which means compare gl_ClipVertex (or gl_Position, if
 159        * gl_ClipVertex wasn't assigned) against the eye-coordinate clip planes
 160        * that were stored in EyeUserPlane at the time the clip planes were
 161        * specified.
 162        */
 163       return ctx->Transform.EyeUserPlane;
 164    } else {
 165       /* Either we are using fixed function or an ARB vertex program.  In
 166        * either case the clip planes are going to be compared against
 167        * gl_Position (which is in clip coordinates) so we have to clip using
 168        * _ClipUserPlane, which was transformed into clip coordinates by Mesa
 169        * core.
 170        */
 171       return ctx->Transform._ClipUserPlane;
 172    }
 173 }
 174
 175
 176 bool
 177 brw_vec4_prog_data_compare(const struct brw_vec4_prog_data *a,
 178                            const struct brw_vec4_prog_data *b)
 179 {
 180    /* Compare all the struct up to the pointers. */
 181    if (memcmp(a, b, offsetof(struct brw_vec4_prog_data, param)))
 182       return false;
 183
 184    if (memcmp(a->param, b->param, a->nr_params * sizeof(void *)))
 185       return false;
 186
 187    if (memcmp(a->pull_param, b->pull_param, a->nr_pull_params * sizeof(void *)))
 188       return false;
 189
 190    return true;
 191 }
 192
 193
 194 bool
 195 brw_vs_prog_data_compare(const void *in_a, const void *in_b,
 196                          int aux_size, const void *in_key)
 197 {
 198    const struct brw_vs_prog_data *a = in_a;
 199    const struct brw_vs_prog_data *b = in_b;
 200
 201    /* Compare the base vec4 structure. */
 202    if (!brw_vec4_prog_data_compare(&a->base, &b->base))
 203       return false;
 204
 205    /* Compare the rest of the struct. */
 206    const unsigned offset = sizeof(struct brw_vec4_prog_data);
 207    if (memcmp(((char *) &a) + offset, ((char *) &b) + offset,
 208               sizeof(struct brw_vs_prog_data) - offset)) {
 209       return false;
 210    }
 211
 212    return true;
 213 }
 214
 215 static bool
 216 do_vs_prog(struct brw_context *brw,
 217            struct gl_shader_program *prog,
 218            struct brw_vertex_program *vp,
 219            struct brw_vs_prog_key *key)
 220 {
 221    GLuint program_size;
 222    const GLuint *program;
 223    struct brw_vs_compile c;
 224    struct brw_vs_prog_data prog_data;
 225    void *mem_ctx;
 226    int i;
 227    struct gl_shader *vs = NULL;
 228
 229    if (prog)
 230       vs = prog->_LinkedShaders[MESA_SHADER_VERTEX];
 231
 232    memset(&c, 0, sizeof(c));
 233    memcpy(&c.key, key, sizeof(*key));
 234    memset(&prog_data, 0, sizeof(prog_data));
 235
 236    mem_ctx = ralloc_context(NULL);
 237
 238    c.vp = vp;
 239
 240    /* Allocate the references to the uniforms that will end up in the
 241     * prog_data associated with the compiled program, and which will be freed
 242     * by the state cache.
 243     */
 244    int param_count;
 245    if (vs) {
 246       /* We add padding around uniform values below vec4 size, with the worst
 247        * case being a float value that gets blown up to a vec4, so be
 248        * conservative here.
 249        */
 250       param_count = vs->num_uniform_components * 4;
 251
 252    } else {
 253       param_count = vp->program.Base.Parameters->NumParameters * 4;
 254    }
 255    /* We also upload clip plane data as uniforms */
 256    param_count += MAX_CLIP_PLANES * 4;
 257
 258    prog_data.base.param = rzalloc_array(NULL, const float *, param_count);
 259    prog_data.base.pull_param = rzalloc_array(NULL, const float *, param_count);
 260
 261    GLbitfield64 outputs_written = vp->program.Base.OutputsWritten;
 262    prog_data.inputs_read = vp->program.Base.InputsRead;
 263
 264    if (c.key.copy_edgeflag) {
 265       outputs_written |= BITFIELD64_BIT(VARYING_SLOT_EDGE);
 266       prog_data.inputs_read |= VERT_BIT_EDGEFLAG;
 267    }
 268
 269    if (brw->gen < 6) {
 270       /* Put dummy slots into the VUE for the SF to put the replaced
 271        * point sprite coords in.  We shouldn't need these dummy slots,
 272        * which take up precious URB space, but it would mean that the SF
 273        * doesn't get nice aligned pairs of input coords into output
 274        * coords, which would be a pain to handle.
 275        */
 276       for (i = 0; i < 8; i++) {
 277          if (c.key.point_coord_replace & (1 << i))
 278             outputs_written |= BITFIELD64_BIT(VARYING_SLOT_TEX0 + i);
 279       }
 280
 281       /* if back colors are written, allocate slots for front colors too */
 282       if (outputs_written & BITFIELD64_BIT(VARYING_SLOT_BFC0))
 283          outputs_written |= BITFIELD64_BIT(VARYING_SLOT_COL0);
 284       if (outputs_written & BITFIELD64_BIT(VARYING_SLOT_BFC1))
 285          outputs_written |= BITFIELD64_BIT(VARYING_SLOT_COL1);
 286
 287       if (c.key.base.userclip_active) {
 288          outputs_written |= BITFIELD64_BIT(VARYING_SLOT_CLIP_DIST0);
 289          outputs_written |= BITFIELD64_BIT(VARYING_SLOT_CLIP_DIST1);
 290       }
 291    }
 292
 293    brw_compute_vue_map(brw, &prog_data.base.vue_map, outputs_written,
 294                        c.key.base.userclip_active);
 295
 296    if (0) {
 297       _mesa_fprint_program_opt(stdout, &c.vp->program.Base, PROG_PRINT_DEBUG,
 298                                true);
 299    }
 300
 301    /* Emit GEN4 code.
 302     */
 303    program = brw_vs_emit(brw, prog, &c, &prog_data, mem_ctx, &program_size);
 304    if (program == NULL) {
 305       ralloc_free(mem_ctx);
 306       return false;
 307    }
 308
 309    if (prog_data.base.nr_pull_params)
 310       prog_data.base.num_surfaces = 1;
 311    if (c.vp->program.Base.SamplersUsed)
 312       prog_data.base.num_surfaces = SURF_INDEX_VS_TEXTURE(BRW_MAX_TEX_UNIT);
 313    if (prog &&
 314        prog->_LinkedShaders[MESA_SHADER_VERTEX]->NumUniformBlocks) {
 315       prog_data.base.num_surfaces =
 316          SURF_INDEX_VS_UBO(prog->_LinkedShaders[MESA_SHADER_VERTEX]->NumUniformBlocks);
 317    }
 318
 319    /* Scratch space is used for register spilling */
 320    if (c.base.last_scratch) {
 321       perf_debug("Vertex shader triggered register spilling.  "
 322                  "Try reducing the number of live vec4 values to "
 323                  "improve performance.\n");
 324
 325       prog_data.base.total_scratch
 326          = brw_get_scratch_size(c.base.last_scratch*REG_SIZE);
 327
 328       brw_get_scratch_bo(brw, &brw->vs.scratch_bo,
 329                          prog_data.base.total_scratch * brw->max_vs_threads);
 330    }
 331
 332    brw_upload_cache(&brw->cache, BRW_VS_PROG,
 333                     &c.key, sizeof(c.key),
 334                     program, program_size,
 335                     &prog_data, sizeof(prog_data),
 336                     &brw->vs.prog_offset, &brw->vs.prog_data);
 337    ralloc_free(mem_ctx);
 338
 339    return true;
 340 }
 341
 342 static bool
 343 key_debug(struct brw_context *brw, const char *name, int a, int b)
 344 {
 345    if (a != b) {
 346       perf_debug("  %s %d->%d\n", name, a, b);
 347       return true;
 348    }
 349    return false;
 350 }
 351
 352 void
 353 brw_vs_debug_recompile(struct brw_context *brw,
 354                        struct gl_shader_program *prog,
 355                        const struct brw_vs_prog_key *key)
 356 {
 357    struct brw_cache_item *c = NULL;
 358    const struct brw_vs_prog_key *old_key = NULL;
 359    bool found = false;
 360
 361    perf_debug("Recompiling vertex shader for program %d\n", prog->Name);
 362
 363    for (unsigned int i = 0; i < brw->cache.size; i++) {
 364       for (c = brw->cache.items[i]; c; c = c->next) {
 365          if (c->cache_id == BRW_VS_PROG) {
 366             old_key = c->key;
 367
 368             if (old_key->base.program_string_id == key->base.program_string_id)
 369                break;
 370          }
 371       }
 372       if (c)
 373          break;
 374    }
 375
 376    if (!c) {
 377       perf_debug("  Didn't find previous compile in the shader cache for "
 378                  "debug\n");
 379       return;
 380    }
 381
 382    for (unsigned int i = 0; i < VERT_ATTRIB_MAX; i++) {
 383       found |= key_debug(brw, "Vertex attrib w/a flags",
 384                          old_key->gl_attrib_wa_flags[i],
 385                          key->gl_attrib_wa_flags[i]);
 386    }
 387
 388    found |= key_debug(brw, "user clip flags",
 389                       old_key->base.userclip_active, key->base.userclip_active);
 390
 391    found |= key_debug(brw, "user clipping planes as push constants",
 392                       old_key->base.nr_userclip_plane_consts,
 393                       key->base.nr_userclip_plane_consts);
 394
 395    found |= key_debug(brw, "clip distance enable",
 396                       old_key->base.uses_clip_distance, key->base.uses_clip_distance);
 397    found |= key_debug(brw, "clip plane enable bitfield",
 398                       old_key->base.userclip_planes_enabled_gen_4_5,
 399                       key->base.userclip_planes_enabled_gen_4_5);
 400    found |= key_debug(brw, "copy edgeflag",
 401                       old_key->copy_edgeflag, key->copy_edgeflag);
 402    found |= key_debug(brw, "PointCoord replace",
 403                       old_key->point_coord_replace, key->point_coord_replace);
 404    found |= key_debug(brw, "vertex color clamping",
 405                       old_key->base.clamp_vertex_color, key->base.clamp_vertex_color);
 406
 407    found |= brw_debug_recompile_sampler_key(brw, &old_key->base.tex,
 408                                             &key->base.tex);
 409
 410    if (!found) {
 411       perf_debug("  Something else\n");
 412    }
 413 }
 414
 415 static void brw_upload_vs_prog(struct brw_context *brw)
 416 {
 417    struct gl_context *ctx = &brw->ctx;
 418    struct brw_vs_prog_key key;
 419    /* BRW_NEW_VERTEX_PROGRAM */
 420    struct brw_vertex_program *vp =
 421       (struct brw_vertex_program *)brw->vertex_program;
 422    struct gl_program *prog = (struct gl_program *) brw->vertex_program;
 423    int i;
 424
 425    memset(&key, 0, sizeof(key));
 426
 427    /* Just upload the program verbatim for now.  Always send it all
 428     * the inputs it asks for, whether they are varying or not.
 429     */
 430    key.base.program_string_id = vp->id;
 431    key.base.userclip_active = (ctx->Transform.ClipPlanesEnabled != 0);
 432    key.base.uses_clip_distance = vp->program.UsesClipDistance;
 433    if (key.base.userclip_active && !key.base.uses_clip_distance) {
 434       if (brw->gen < 6) {
 435          key.base.nr_userclip_plane_consts
 436             = _mesa_bitcount_64(ctx->Transform.ClipPlanesEnabled);
 437          key.base.userclip_planes_enabled_gen_4_5
 438             = ctx->Transform.ClipPlanesEnabled;
 439       } else {
 440          key.base.nr_userclip_plane_consts
 441             = _mesa_logbase2(ctx->Transform.ClipPlanesEnabled) + 1;
 442       }
 443    }
 444
 445    /* _NEW_POLYGON */
 446    if (brw->gen < 6) {
 447       key.copy_edgeflag = (ctx->Polygon.FrontMode != GL_FILL ||
 448                            ctx->Polygon.BackMode != GL_FILL);
 449    }
 450
 451    /* _NEW_LIGHT | _NEW_BUFFERS */
 452    key.base.clamp_vertex_color = ctx->Light._ClampVertexColor;
 453
 454    /* _NEW_POINT */
 455    if (brw->gen < 6 && ctx->Point.PointSprite) {
 456       for (i = 0; i < 8; i++) {
 457          if (ctx->Point.CoordReplace[i])
 458             key.point_coord_replace |= (1 << i);
 459       }
 460    }
 461
 462    /* _NEW_TEXTURE */
 463    brw_populate_sampler_prog_key_data(ctx, prog, &key.base.tex);
 464
 465    /* BRW_NEW_VERTICES */
 466    if (brw->gen < 8 && !brw->is_haswell) {
 467       /* Prior to Haswell, the hardware can't natively support GL_FIXED or
 468        * 2_10_10_10_REV vertex formats.  Set appropriate workaround flags.
 469        */
 470       for (i = 0; i < VERT_ATTRIB_MAX; i++) {
 471          if (!(vp->program.Base.InputsRead & BITFIELD64_BIT(i)))
 472             continue;
 473
 474          uint8_t wa_flags = 0;
 475
 476          switch (brw->vb.inputs[i].glarray->Type) {
 477
 478          case GL_FIXED:
 479             wa_flags = brw->vb.inputs[i].glarray->Size;
 480             break;
 481
 482          case GL_INT_2_10_10_10_REV:
 483             wa_flags |= BRW_ATTRIB_WA_SIGN;
 484             /* fallthough */
 485
 486          case GL_UNSIGNED_INT_2_10_10_10_REV:
 487             if (brw->vb.inputs[i].glarray->Format == GL_BGRA)
 488                wa_flags |= BRW_ATTRIB_WA_BGRA;
 489
 490             if (brw->vb.inputs[i].glarray->Normalized)
 491                wa_flags |= BRW_ATTRIB_WA_NORMALIZE;
 492             else if (!brw->vb.inputs[i].glarray->Integer)
 493                wa_flags |= BRW_ATTRIB_WA_SCALE;
 494
 495             break;
 496          }
 497
 498          key.gl_attrib_wa_flags[i] = wa_flags;
 499       }
 500    }
 501
 502    if (!brw_search_cache(&brw->cache, BRW_VS_PROG,
 503                          &key, sizeof(key),
 504                          &brw->vs.prog_offset, &brw->vs.prog_data)) {
 505       bool success = do_vs_prog(brw, ctx->Shader.CurrentVertexProgram,
 506                                 vp, &key);
 507
 508       assert(success);
 509    }
 510    if (memcmp(&brw->vs.prog_data->base.vue_map, &brw->vue_map_geom_out,
 511               sizeof(brw->vue_map_geom_out)) != 0) {
 512       brw->vue_map_geom_out = brw->vs.prog_data->base.vue_map;
 513       brw->state.dirty.brw |= BRW_NEW_VUE_MAP_GEOM_OUT;
 514    }
 515 }
 516
 517 /* See brw_vs.c:
 518  */
 519 const struct brw_tracked_state brw_vs_prog = {
 520    .dirty = {
 521       .mesa  = (_NEW_TRANSFORM | _NEW_POLYGON | _NEW_POINT | _NEW_LIGHT |
 522                 _NEW_TEXTURE |
 523                 _NEW_BUFFERS),
 524       .brw   = (BRW_NEW_VERTEX_PROGRAM |
 525                 BRW_NEW_VERTICES),
 526       .cache = 0
 527    },
 528    .emit = brw_upload_vs_prog
 529 };
 530
 531 bool
 532 brw_vs_precompile(struct gl_context *ctx, struct gl_shader_program *prog)
 533 {
 534    struct brw_context *brw = brw_context(ctx);
 535    struct brw_vs_prog_key key;
 536    uint32_t old_prog_offset = brw->vs.prog_offset;
 537    struct brw_vs_prog_data *old_prog_data = brw->vs.prog_data;
 538    bool success;
 539
 540    if (!prog->_LinkedShaders[MESA_SHADER_VERTEX])
 541       return true;
 542
 543    struct gl_vertex_program *vp = (struct gl_vertex_program *)
 544       prog->_LinkedShaders[MESA_SHADER_VERTEX]->Program;
 545    struct brw_vertex_program *bvp = brw_vertex_program(vp);
 546
 547    memset(&key, 0, sizeof(key));
 548
 549    key.base.program_string_id = bvp->id;
 550    key.base.clamp_vertex_color = ctx->API == API_OPENGL_COMPAT;
 551
 552    for (int i = 0; i < MAX_SAMPLERS; i++) {
 553       if (vp->Base.ShadowSamplers & (1 << i)) {
 554          /* Assume DEPTH_TEXTURE_MODE is the default: X, X, X, 1 */
 555          key.base.tex.swizzles[i] =
 556             MAKE_SWIZZLE4(SWIZZLE_X, SWIZZLE_X, SWIZZLE_X, SWIZZLE_ONE);
 557       } else {
 558          /* Color sampler: assume no swizzling. */
 559          key.base.tex.swizzles[i] = SWIZZLE_XYZW;
 560       }
 561    }
 562
 563    success = do_vs_prog(brw, prog, bvp, &key);
 564
 565    brw->vs.prog_offset = old_prog_offset;
 566    brw->vs.prog_data = old_prog_data;
 567
 568    return success;
 569 }
 570
 571
 572 void
 573 brw_vec4_prog_data_free(const struct brw_vec4_prog_data *prog_data)
 574 {
 575    ralloc_free((void *)prog_data->param);
 576    ralloc_free((void *)prog_data->pull_param);
 577 }
 578
 579
 580 void
 581 brw_vs_prog_data_free(const void *in_prog_data)
 582 {
 583    const struct brw_vs_prog_data *prog_data = in_prog_data;
 584
 585    brw_vec4_prog_data_free(&prog_data->base);
 586 }