src/gallium/auxiliary/util/u_inlines.h

   1 /**************************************************************************
   2  *
   3  * Copyright 2007 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 #ifndef U_INLINES_H
  29 #define U_INLINES_H
  30
  31 #include "pipe/p_context.h"
  32 #include "pipe/p_defines.h"
  33 #include "pipe/p_shader_tokens.h"
  34 #include "pipe/p_state.h"
  35 #include "pipe/p_screen.h"
  36 #include "util/u_debug.h"
  37 #include "util/u_debug_describe.h"
  38 #include "util/u_debug_refcnt.h"
  39 #include "util/u_atomic.h"
  40 #include "util/u_box.h"
  41 #include "util/u_math.h"
  42
  43
  44 #ifdef __cplusplus
  45 extern "C" {
  46 #endif
  47
  48
  49 /*
  50  * Reference counting helper functions.
  51  */
  52
  53
  54 static inline void
  55 pipe_reference_init(struct pipe_reference *reference, unsigned count)
  56 {
  57    p_atomic_set(&reference->count, count);
  58 }
  59
  60 static inline boolean
  61 pipe_is_referenced(struct pipe_reference *reference)
  62 {
  63    return p_atomic_read(&reference->count) != 0;
  64 }
  65
  66 /**
  67  * Update reference counting.
  68  * The old thing pointed to, if any, will be unreferenced.
  69  * Both 'ptr' and 'reference' may be NULL.
  70  * \return TRUE if the object's refcount hits zero and should be destroyed.
  71  */
  72 static inline boolean
  73 pipe_reference_described(struct pipe_reference *ptr,
  74                          struct pipe_reference *reference,
  75                          debug_reference_descriptor get_desc)
  76 {
  77    boolean destroy = FALSE;
  78
  79    if(ptr != reference) {
  80       /* bump the reference.count first */
  81       if (reference) {
  82          assert(pipe_is_referenced(reference));
  83          p_atomic_inc(&reference->count);
  84          debug_reference(reference, get_desc, 1);
  85       }
  86
  87       if (ptr) {
  88          assert(pipe_is_referenced(ptr));
  89          if (p_atomic_dec_zero(&ptr->count)) {
  90             destroy = TRUE;
  91          }
  92          debug_reference(ptr, get_desc, -1);
  93       }
  94    }
  95
  96    return destroy;
  97 }
  98
  99 static inline boolean
 100 pipe_reference(struct pipe_reference *ptr, struct pipe_reference *reference)
 101 {
 102    return pipe_reference_described(ptr, reference,
 103                                    (debug_reference_descriptor)debug_describe_reference);
 104 }
 105
 106 static inline void
 107 pipe_surface_reference(struct pipe_surface **ptr, struct pipe_surface *surf)
 108 {
 109    struct pipe_surface *old_surf = *ptr;
 110
 111    if (pipe_reference_described(&(*ptr)->reference, &surf->reference,
 112                                 (debug_reference_descriptor)debug_describe_surface))
 113       old_surf->context->surface_destroy(old_surf->context, old_surf);
 114    *ptr = surf;
 115 }
 116
 117 /**
 118  * Similar to pipe_surface_reference() but always set the pointer to NULL
 119  * and pass in an explicit context.  The explicit context avoids the problem
 120  * of using a deleted context's surface_destroy() method when freeing a surface
 121  * that's shared by multiple contexts.
 122  */
 123 static inline void
 124 pipe_surface_release(struct pipe_context *pipe, struct pipe_surface **ptr)
 125 {
 126    if (pipe_reference_described(&(*ptr)->reference, NULL,
 127                                 (debug_reference_descriptor)debug_describe_surface))
 128       pipe->surface_destroy(pipe, *ptr);
 129    *ptr = NULL;
 130 }
 131
 132
 133 static inline void
 134 pipe_resource_reference(struct pipe_resource **ptr, struct pipe_resource *tex)
 135 {
 136    struct pipe_resource *old_tex = *ptr;
 137
 138    if (pipe_reference_described(&(*ptr)->reference, &tex->reference,
 139                                 (debug_reference_descriptor)debug_describe_resource))
 140       old_tex->screen->resource_destroy(old_tex->screen, old_tex);
 141    *ptr = tex;
 142 }
 143
 144 static inline void
 145 pipe_sampler_view_reference(struct pipe_sampler_view **ptr, struct pipe_sampler_view *view)
 146 {
 147    struct pipe_sampler_view *old_view = *ptr;
 148
 149    if (pipe_reference_described(&(*ptr)->reference, &view->reference,
 150                                 (debug_reference_descriptor)debug_describe_sampler_view))
 151       old_view->context->sampler_view_destroy(old_view->context, old_view);
 152    *ptr = view;
 153 }
 154
 155 /**
 156  * Similar to pipe_sampler_view_reference() but always set the pointer to
 157  * NULL and pass in an explicit context.  Passing an explicit context is a
 158  * work-around for fixing a dangling context pointer problem when textures
 159  * are shared by multiple contexts.  XXX fix this someday.
 160  */
 161 static inline void
 162 pipe_sampler_view_release(struct pipe_context *ctx,
 163                           struct pipe_sampler_view **ptr)
 164 {
 165    struct pipe_sampler_view *old_view = *ptr;
 166    if (*ptr && (*ptr)->context != ctx) {
 167       debug_printf_once(("context mis-match in pipe_sampler_view_release()\n"));
 168    }
 169    if (pipe_reference_described(&(*ptr)->reference, NULL,
 170                     (debug_reference_descriptor)debug_describe_sampler_view)) {
 171       ctx->sampler_view_destroy(ctx, old_view);
 172    }
 173    *ptr = NULL;
 174 }
 175
 176 static inline void
 177 pipe_image_view_reference(struct pipe_image_view **ptr, struct pipe_image_view *view)
 178 {
 179    struct pipe_image_view *old_view = *ptr;
 180
 181    if (pipe_reference_described(&(*ptr)->reference, &view->reference,
 182                                 (debug_reference_descriptor)debug_describe_image_view))
 183       old_view->context->image_view_destroy(old_view->context, old_view);
 184    *ptr = view;
 185 }
 186
 187 static inline void
 188 pipe_so_target_reference(struct pipe_stream_output_target **ptr,
 189                          struct pipe_stream_output_target *target)
 190 {
 191    struct pipe_stream_output_target *old = *ptr;
 192
 193    if (pipe_reference_described(&(*ptr)->reference, &target->reference,
 194                      (debug_reference_descriptor)debug_describe_so_target))
 195       old->context->stream_output_target_destroy(old->context, old);
 196    *ptr = target;
 197 }
 198
 199 static inline void
 200 pipe_surface_reset(struct pipe_context *ctx, struct pipe_surface* ps,
 201                    struct pipe_resource *pt, unsigned level, unsigned layer)
 202 {
 203    pipe_resource_reference(&ps->texture, pt);
 204    ps->format = pt->format;
 205    ps->width = u_minify(pt->width0, level);
 206    ps->height = u_minify(pt->height0, level);
 207    ps->u.tex.level = level;
 208    ps->u.tex.first_layer = ps->u.tex.last_layer = layer;
 209    ps->context = ctx;
 210 }
 211
 212 static inline void
 213 pipe_surface_init(struct pipe_context *ctx, struct pipe_surface* ps,
 214                   struct pipe_resource *pt, unsigned level, unsigned layer)
 215 {
 216    ps->texture = 0;
 217    pipe_reference_init(&ps->reference, 1);
 218    pipe_surface_reset(ctx, ps, pt, level, layer);
 219 }
 220
 221 /* Return true if the surfaces are equal. */
 222 static inline boolean
 223 pipe_surface_equal(struct pipe_surface *s1, struct pipe_surface *s2)
 224 {
 225    return s1->texture == s2->texture &&
 226           s1->format == s2->format &&
 227           (s1->texture->target != PIPE_BUFFER ||
 228            (s1->u.buf.first_element == s2->u.buf.first_element &&
 229             s1->u.buf.last_element == s2->u.buf.last_element)) &&
 230           (s1->texture->target == PIPE_BUFFER ||
 231            (s1->u.tex.level == s2->u.tex.level &&
 232             s1->u.tex.first_layer == s2->u.tex.first_layer &&
 233             s1->u.tex.last_layer == s2->u.tex.last_layer));
 234 }
 235
 236 /*
 237  * Convenience wrappers for screen buffer functions.
 238  */
 239
 240
 241 /**
 242  * Create a new resource.
 243  * \param bind  bitmask of PIPE_BIND_x flags
 244  * \param usage  bitmask of PIPE_USAGE_x flags
 245  */
 246 static inline struct pipe_resource *
 247 pipe_buffer_create( struct pipe_screen *screen,
 248                     unsigned bind,
 249                     unsigned usage,
 250                     unsigned size )
 251 {
 252    struct pipe_resource buffer;
 253    memset(&buffer, 0, sizeof buffer);
 254    buffer.target = PIPE_BUFFER;
 255    buffer.format = PIPE_FORMAT_R8_UNORM; /* want TYPELESS or similar */
 256    buffer.bind = bind;
 257    buffer.usage = usage;
 258    buffer.flags = 0;
 259    buffer.width0 = size;
 260    buffer.height0 = 1;
 261    buffer.depth0 = 1;
 262    buffer.array_size = 1;
 263    return screen->resource_create(screen, &buffer);
 264 }
 265
 266
 267 /**
 268  * Map a range of a resource.
 269  * \param offset  start of region, in bytes
 270  * \param length  size of region, in bytes
 271  * \param access  bitmask of PIPE_TRANSFER_x flags
 272  * \param transfer  returns a transfer object
 273  */
 274 static inline void *
 275 pipe_buffer_map_range(struct pipe_context *pipe,
 276                       struct pipe_resource *buffer,
 277                       unsigned offset,
 278                       unsigned length,
 279                       unsigned access,
 280                       struct pipe_transfer **transfer)
 281 {
 282    struct pipe_box box;
 283    void *map;
 284
 285    assert(offset < buffer->width0);
 286    assert(offset + length <= buffer->width0);
 287    assert(length);
 288
 289    u_box_1d(offset, length, &box);
 290
 291    map = pipe->transfer_map(pipe, buffer, 0, access, &box, transfer);
 292    if (!map) {
 293       return NULL;
 294    }
 295
 296    return map;
 297 }
 298
 299
 300 /**
 301  * Map whole resource.
 302  * \param access  bitmask of PIPE_TRANSFER_x flags
 303  * \param transfer  returns a transfer object
 304  */
 305 static inline void *
 306 pipe_buffer_map(struct pipe_context *pipe,
 307                 struct pipe_resource *buffer,
 308                 unsigned access,
 309                 struct pipe_transfer **transfer)
 310 {
 311    return pipe_buffer_map_range(pipe, buffer, 0, buffer->width0, access, transfer);
 312 }
 313
 314
 315 static inline void
 316 pipe_buffer_unmap(struct pipe_context *pipe,
 317                   struct pipe_transfer *transfer)
 318 {
 319    pipe->transfer_unmap(pipe, transfer);
 320 }
 321
 322 static inline void
 323 pipe_buffer_flush_mapped_range(struct pipe_context *pipe,
 324                                struct pipe_transfer *transfer,
 325                                unsigned offset,
 326                                unsigned length)
 327 {
 328    struct pipe_box box;
 329    int transfer_offset;
 330
 331    assert(length);
 332    assert(transfer->box.x <= (int) offset);
 333    assert((int) (offset + length) <= transfer->box.x + transfer->box.width);
 334
 335    /* Match old screen->buffer_flush_mapped_range() behaviour, where
 336     * offset parameter is relative to the start of the buffer, not the
 337     * mapped range.
 338     */
 339    transfer_offset = offset - transfer->box.x;
 340
 341    u_box_1d(transfer_offset, length, &box);
 342
 343    pipe->transfer_flush_region(pipe, transfer, &box);
 344 }
 345
 346 static inline void
 347 pipe_buffer_write(struct pipe_context *pipe,
 348                   struct pipe_resource *buf,
 349                   unsigned offset,
 350                   unsigned size,
 351                   const void *data)
 352 {
 353    struct pipe_box box;
 354    unsigned access = PIPE_TRANSFER_WRITE;
 355
 356    if (offset == 0 && size == buf->width0) {
 357       access |= PIPE_TRANSFER_DISCARD_WHOLE_RESOURCE;
 358    } else {
 359       access |= PIPE_TRANSFER_DISCARD_RANGE;
 360    }
 361
 362    u_box_1d(offset, size, &box);
 363
 364    pipe->transfer_inline_write( pipe,
 365                                 buf,
 366                                 0,
 367                                 access,
 368                                 &box,
 369                                 data,
 370                                 size,
 371                                 0);
 372 }
 373
 374 /**
 375  * Special case for writing non-overlapping ranges.
 376  *
 377  * We can avoid GPU/CPU synchronization when writing range that has never
 378  * been written before.
 379  */
 380 static inline void
 381 pipe_buffer_write_nooverlap(struct pipe_context *pipe,
 382                             struct pipe_resource *buf,
 383                             unsigned offset, unsigned size,
 384                             const void *data)
 385 {
 386    struct pipe_box box;
 387
 388    u_box_1d(offset, size, &box);
 389
 390    pipe->transfer_inline_write(pipe,
 391                                buf,
 392                                0,
 393                                (PIPE_TRANSFER_WRITE |
 394                                 PIPE_TRANSFER_UNSYNCHRONIZED),
 395                                &box,
 396                                data,
 397                                0, 0);
 398 }
 399
 400
 401 /**
 402  * Create a new resource and immediately put data into it
 403  * \param bind  bitmask of PIPE_BIND_x flags
 404  * \param usage  bitmask of PIPE_USAGE_x flags
 405  */
 406 static inline struct pipe_resource *
 407 pipe_buffer_create_with_data(struct pipe_context *pipe,
 408                              unsigned bind,
 409                              unsigned usage,
 410                              unsigned size,
 411                              const void *ptr)
 412 {
 413    struct pipe_resource *res = pipe_buffer_create(pipe->screen,
 414                                                   bind, usage, size);
 415    pipe_buffer_write_nooverlap(pipe, res, 0, size, ptr);
 416    return res;
 417 }
 418
 419 static inline void
 420 pipe_buffer_read(struct pipe_context *pipe,
 421                  struct pipe_resource *buf,
 422                  unsigned offset,
 423                  unsigned size,
 424                  void *data)
 425 {
 426    struct pipe_transfer *src_transfer;
 427    ubyte *map;
 428
 429    map = (ubyte *) pipe_buffer_map_range(pipe,
 430                                          buf,
 431                                          offset, size,
 432                                          PIPE_TRANSFER_READ,
 433                                          &src_transfer);
 434    if (!map)
 435       return;
 436
 437    memcpy(data, map, size);
 438    pipe_buffer_unmap(pipe, src_transfer);
 439 }
 440
 441
 442 /**
 443  * Map a resource for reading/writing.
 444  * \param access  bitmask of PIPE_TRANSFER_x flags
 445  */
 446 static inline void *
 447 pipe_transfer_map(struct pipe_context *context,
 448                   struct pipe_resource *resource,
 449                   unsigned level, unsigned layer,
 450                   unsigned access,
 451                   unsigned x, unsigned y,
 452                   unsigned w, unsigned h,
 453                   struct pipe_transfer **transfer)
 454 {
 455    struct pipe_box box;
 456    u_box_2d_zslice(x, y, layer, w, h, &box);
 457    return context->transfer_map(context,
 458                                 resource,
 459                                 level,
 460                                 access,
 461                                 &box, transfer);
 462 }
 463
 464
 465 /**
 466  * Map a 3D (texture) resource for reading/writing.
 467  * \param access  bitmask of PIPE_TRANSFER_x flags
 468  */
 469 static inline void *
 470 pipe_transfer_map_3d(struct pipe_context *context,
 471                      struct pipe_resource *resource,
 472                      unsigned level,
 473                      unsigned access,
 474                      unsigned x, unsigned y, unsigned z,
 475                      unsigned w, unsigned h, unsigned d,
 476                      struct pipe_transfer **transfer)
 477 {
 478    struct pipe_box box;
 479    u_box_3d(x, y, z, w, h, d, &box);
 480    return context->transfer_map(context,
 481                                 resource,
 482                                 level,
 483                                 access,
 484                                 &box, transfer);
 485 }
 486
 487 static inline void
 488 pipe_transfer_unmap( struct pipe_context *context,
 489                      struct pipe_transfer *transfer )
 490 {
 491    context->transfer_unmap( context, transfer );
 492 }
 493
 494 static inline void
 495 pipe_set_constant_buffer(struct pipe_context *pipe, uint shader, uint index,
 496                          struct pipe_resource *buf)
 497 {
 498    if (buf) {
 499       struct pipe_constant_buffer cb;
 500       cb.buffer = buf;
 501       cb.buffer_offset = 0;
 502       cb.buffer_size = buf->width0;
 503       cb.user_buffer = NULL;
 504       pipe->set_constant_buffer(pipe, shader, index, &cb);
 505    } else {
 506       pipe->set_constant_buffer(pipe, shader, index, NULL);
 507    }
 508 }
 509
 510
 511 /**
 512  * Get the polygon offset enable/disable flag for the given polygon fill mode.
 513  * \param fill_mode  one of PIPE_POLYGON_MODE_POINT/LINE/FILL
 514  */
 515 static inline boolean
 516 util_get_offset(const struct pipe_rasterizer_state *templ,
 517                 unsigned fill_mode)
 518 {
 519    switch(fill_mode) {
 520    case PIPE_POLYGON_MODE_POINT:
 521       return templ->offset_point;
 522    case PIPE_POLYGON_MODE_LINE:
 523       return templ->offset_line;
 524    case PIPE_POLYGON_MODE_FILL:
 525       return templ->offset_tri;
 526    default:
 527       assert(0);
 528       return FALSE;
 529    }
 530 }
 531
 532 static inline float
 533 util_get_min_point_size(const struct pipe_rasterizer_state *state)
 534 {
 535    /* The point size should be clamped to this value at the rasterizer stage.
 536     */
 537    return !state->point_quad_rasterization &&
 538           !state->point_smooth &&
 539           !state->multisample ? 1.0f : 0.0f;
 540 }
 541
 542 static inline void
 543 util_query_clear_result(union pipe_query_result *result, unsigned type)
 544 {
 545    switch (type) {
 546    case PIPE_QUERY_OCCLUSION_PREDICATE:
 547    case PIPE_QUERY_SO_OVERFLOW_PREDICATE:
 548    case PIPE_QUERY_GPU_FINISHED:
 549       result->b = FALSE;
 550       break;
 551    case PIPE_QUERY_OCCLUSION_COUNTER:
 552    case PIPE_QUERY_TIMESTAMP:
 553    case PIPE_QUERY_TIME_ELAPSED:
 554    case PIPE_QUERY_PRIMITIVES_GENERATED:
 555    case PIPE_QUERY_PRIMITIVES_EMITTED:
 556       result->u64 = 0;
 557       break;
 558    case PIPE_QUERY_SO_STATISTICS:
 559       memset(&result->so_statistics, 0, sizeof(result->so_statistics));
 560       break;
 561    case PIPE_QUERY_TIMESTAMP_DISJOINT:
 562       memset(&result->timestamp_disjoint, 0, sizeof(result->timestamp_disjoint));
 563       break;
 564    case PIPE_QUERY_PIPELINE_STATISTICS:
 565       memset(&result->pipeline_statistics, 0, sizeof(result->pipeline_statistics));
 566       break;
 567    default:
 568       memset(result, 0, sizeof(*result));
 569    }
 570 }
 571
 572 /** Convert PIPE_TEXTURE_x to TGSI_TEXTURE_x */
 573 static inline unsigned
 574 util_pipe_tex_to_tgsi_tex(enum pipe_texture_target pipe_tex_target,
 575                           unsigned nr_samples)
 576 {
 577    switch (pipe_tex_target) {
 578    case PIPE_BUFFER:
 579       return TGSI_TEXTURE_BUFFER;
 580
 581    case PIPE_TEXTURE_1D:
 582       assert(nr_samples <= 1);
 583       return TGSI_TEXTURE_1D;
 584
 585    case PIPE_TEXTURE_2D:
 586       return nr_samples > 1 ? TGSI_TEXTURE_2D_MSAA : TGSI_TEXTURE_2D;
 587
 588    case PIPE_TEXTURE_RECT:
 589       assert(nr_samples <= 1);
 590       return TGSI_TEXTURE_RECT;
 591
 592    case PIPE_TEXTURE_3D:
 593       assert(nr_samples <= 1);
 594       return TGSI_TEXTURE_3D;
 595
 596    case PIPE_TEXTURE_CUBE:
 597       assert(nr_samples <= 1);
 598       return TGSI_TEXTURE_CUBE;
 599
 600    case PIPE_TEXTURE_1D_ARRAY:
 601       assert(nr_samples <= 1);
 602       return TGSI_TEXTURE_1D_ARRAY;
 603
 604    case PIPE_TEXTURE_2D_ARRAY:
 605       return nr_samples > 1 ? TGSI_TEXTURE_2D_ARRAY_MSAA :
 606                               TGSI_TEXTURE_2D_ARRAY;
 607
 608    case PIPE_TEXTURE_CUBE_ARRAY:
 609       return TGSI_TEXTURE_CUBE_ARRAY;
 610
 611    default:
 612       assert(0 && "unexpected texture target");
 613       return TGSI_TEXTURE_UNKNOWN;
 614    }
 615 }
 616
 617
 618 static inline void
 619 util_copy_constant_buffer(struct pipe_constant_buffer *dst,
 620                           const struct pipe_constant_buffer *src)
 621 {
 622    if (src) {
 623       pipe_resource_reference(&dst->buffer, src->buffer);
 624       dst->buffer_offset = src->buffer_offset;
 625       dst->buffer_size = src->buffer_size;
 626       dst->user_buffer = src->user_buffer;
 627    }
 628    else {
 629       pipe_resource_reference(&dst->buffer, NULL);
 630       dst->buffer_offset = 0;
 631       dst->buffer_size = 0;
 632       dst->user_buffer = NULL;
 633    }
 634 }
 635
 636 static inline unsigned
 637 util_max_layer(const struct pipe_resource *r, unsigned level)
 638 {
 639    switch (r->target) {
 640    case PIPE_TEXTURE_3D:
 641       return u_minify(r->depth0, level) - 1;
 642    case PIPE_TEXTURE_CUBE:
 643       assert(r->array_size == 6);
 644       /* fall-through */
 645    case PIPE_TEXTURE_1D_ARRAY:
 646    case PIPE_TEXTURE_2D_ARRAY:
 647    case PIPE_TEXTURE_CUBE_ARRAY:
 648       return r->array_size - 1;
 649    default:
 650       return 0;
 651    }
 652 }
 653
 654 static inline unsigned
 655 util_pipe_shader_from_tgsi_processor(unsigned processor)
 656 {
 657    switch (processor) {
 658    case TGSI_PROCESSOR_VERTEX:
 659       return PIPE_SHADER_VERTEX;
 660    case TGSI_PROCESSOR_TESS_CTRL:
 661       return PIPE_SHADER_TESS_CTRL;
 662    case TGSI_PROCESSOR_TESS_EVAL:
 663       return PIPE_SHADER_TESS_EVAL;
 664    case TGSI_PROCESSOR_GEOMETRY:
 665       return PIPE_SHADER_GEOMETRY;
 666    case TGSI_PROCESSOR_FRAGMENT:
 667       return PIPE_SHADER_FRAGMENT;
 668    case TGSI_PROCESSOR_COMPUTE:
 669       return PIPE_SHADER_COMPUTE;
 670    default:
 671       assert(0);
 672       return PIPE_SHADER_VERTEX;
 673    }
 674 }
 675
 676 #ifdef __cplusplus
 677 }
 678 #endif
 679
 680 #endif /* U_INLINES_H */