src/gallium/auxiliary/gallivm/lp_bld_sample.h

   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,
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  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  * @file
  30  * Texture sampling.
  31  *
  32  * @author Jose Fonseca <jfonseca@vmware.com>
  33  */
  34
  35 #ifndef LP_BLD_SAMPLE_H
  36 #define LP_BLD_SAMPLE_H
  37
  38
  39 #include "pipe/p_format.h"
  40 #include "util/u_debug.h"
  41 #include "gallivm/lp_bld.h"
  42 #include "gallivm/lp_bld_type.h"
  43 #include "gallivm/lp_bld_swizzle.h"
  44
  45 #ifdef __cplusplus
  46 extern "C" {
  47 #endif
  48
  49 struct pipe_resource;
  50 struct pipe_sampler_view;
  51 struct pipe_sampler_state;
  52 struct pipe_image_view;
  53 struct util_format_description;
  54 struct lp_type;
  55 struct lp_build_context;
  56
  57
  58 /**
  59  * Helper struct holding all derivatives needed for sampling
  60  */
  61 struct lp_derivatives
  62 {
  63    LLVMValueRef ddx[3];
  64    LLVMValueRef ddy[3];
  65 };
  66
  67
  68 enum lp_sampler_lod_property {
  69    LP_SAMPLER_LOD_SCALAR,
  70    LP_SAMPLER_LOD_PER_ELEMENT,
  71    LP_SAMPLER_LOD_PER_QUAD
  72 };
  73
  74
  75 enum lp_sampler_lod_control {
  76    LP_SAMPLER_LOD_IMPLICIT,
  77    LP_SAMPLER_LOD_BIAS,
  78    LP_SAMPLER_LOD_EXPLICIT,
  79    LP_SAMPLER_LOD_DERIVATIVES,
  80 };
  81
  82
  83 enum lp_sampler_op_type {
  84    LP_SAMPLER_OP_TEXTURE,
  85    LP_SAMPLER_OP_FETCH,
  86    LP_SAMPLER_OP_GATHER,
  87    LP_SAMPLER_OP_LODQ
  88 };
  89
  90
  91 #define LP_SAMPLER_SHADOW             (1 << 0)
  92 #define LP_SAMPLER_OFFSETS            (1 << 1)
  93 #define LP_SAMPLER_OP_TYPE_SHIFT            2
  94 #define LP_SAMPLER_OP_TYPE_MASK       (3 << 2)
  95 #define LP_SAMPLER_LOD_CONTROL_SHIFT        4
  96 #define LP_SAMPLER_LOD_CONTROL_MASK   (3 << 4)
  97 #define LP_SAMPLER_LOD_PROPERTY_SHIFT       6
  98 #define LP_SAMPLER_LOD_PROPERTY_MASK  (3 << 6)
  99 #define LP_SAMPLER_GATHER_COMP_SHIFT        8
 100 #define LP_SAMPLER_GATHER_COMP_MASK   (3 << 8)
 101 #define LP_SAMPLER_FETCH_MS          (1 << 10)
 102
 103 struct lp_sampler_params
 104 {
 105    struct lp_type type;
 106    unsigned texture_index;
 107    unsigned sampler_index;
 108    unsigned sample_key;
 109    LLVMValueRef context_ptr;
 110    LLVMValueRef thread_data_ptr;
 111    const LLVMValueRef *coords;
 112    const LLVMValueRef *offsets;
 113    LLVMValueRef ms_index;
 114    LLVMValueRef lod;
 115    const struct lp_derivatives *derivs;
 116    LLVMValueRef *texel;
 117 };
 118
 119 struct lp_sampler_size_query_params
 120 {
 121    struct lp_type int_type;
 122    unsigned texture_unit;
 123    unsigned target;
 124    LLVMValueRef context_ptr;
 125    boolean is_sviewinfo;
 126    enum lp_sampler_lod_property lod_property;
 127    LLVMValueRef explicit_lod;
 128    LLVMValueRef *sizes_out;
 129 };
 130
 131 #define LP_IMG_LOAD 0
 132 #define LP_IMG_STORE 1
 133 #define LP_IMG_ATOMIC 2
 134 #define LP_IMG_ATOMIC_CAS 3
 135
 136 struct lp_img_params
 137 {
 138    struct lp_type type;
 139    unsigned image_index;
 140    unsigned img_op;
 141    unsigned target;
 142    LLVMAtomicRMWBinOp op;
 143    LLVMValueRef exec_mask;
 144    LLVMValueRef context_ptr;
 145    LLVMValueRef thread_data_ptr;
 146    const LLVMValueRef *coords;
 147    LLVMValueRef ms_index;
 148    LLVMValueRef indata[4];
 149    LLVMValueRef indata2[4];
 150    LLVMValueRef *outdata;
 151 };
 152 /**
 153  * Texture static state.
 154  *
 155  * These are the bits of state from pipe_resource/pipe_sampler_view that
 156  * are embedded in the generated code.
 157  */
 158 struct lp_static_texture_state
 159 {
 160    /* pipe_sampler_view's state */
 161    enum pipe_format format;
 162    unsigned swizzle_r:3;     /**< PIPE_SWIZZLE_* */
 163    unsigned swizzle_g:3;
 164    unsigned swizzle_b:3;
 165    unsigned swizzle_a:3;
 166
 167    /* pipe_texture's state */
 168    unsigned target:4;        /**< PIPE_TEXTURE_* */
 169    unsigned pot_width:1;     /**< is the width a power of two? */
 170    unsigned pot_height:1;
 171    unsigned pot_depth:1;
 172    unsigned level_zero_only:1;
 173 };
 174
 175
 176 /**
 177  * Sampler static state.
 178  *
 179  * These are the bits of state from pipe_sampler_state that
 180  * are embedded in the generated code.
 181  */
 182 struct lp_static_sampler_state
 183 {
 184    /* pipe_sampler_state's state */
 185    unsigned wrap_s:3;
 186    unsigned wrap_t:3;
 187    unsigned wrap_r:3;
 188    unsigned min_img_filter:2;
 189    unsigned min_mip_filter:2;
 190    unsigned mag_img_filter:2;
 191    unsigned compare_mode:1;
 192    unsigned compare_func:3;
 193    unsigned normalized_coords:1;
 194    unsigned min_max_lod_equal:1;  /**< min_lod == max_lod ? */
 195    unsigned lod_bias_non_zero:1;
 196    unsigned max_lod_pos:1;
 197    unsigned apply_min_lod:1;  /**< min_lod > 0 ? */
 198    unsigned apply_max_lod:1;  /**< max_lod < last_level ? */
 199    unsigned seamless_cube_map:1;
 200
 201    /* Hacks */
 202    unsigned force_nearest_s:1;
 203    unsigned force_nearest_t:1;
 204 };
 205
 206
 207 /**
 208  * Sampler dynamic state.
 209  *
 210  * These are the bits of state from pipe_resource/pipe_sampler_view
 211  * as well as from sampler state that are computed at runtime.
 212  *
 213  * There are obtained through callbacks, as we don't want to tie the texture
 214  * sampling code generation logic to any particular texture layout or pipe
 215  * driver.
 216  */
 217 struct lp_sampler_dynamic_state
 218 {
 219    /* First callbacks for sampler view state */
 220
 221    /** Obtain the base texture width (or number of elements) (returns int32) */
 222    LLVMValueRef
 223    (*width)(const struct lp_sampler_dynamic_state *state,
 224             struct gallivm_state *gallivm,
 225             LLVMValueRef context_ptr,
 226             unsigned texture_unit);
 227
 228    /** Obtain the base texture height (returns int32) */
 229    LLVMValueRef
 230    (*height)(const struct lp_sampler_dynamic_state *state,
 231              struct gallivm_state *gallivm,
 232              LLVMValueRef context_ptr,
 233              unsigned texture_unit);
 234
 235    /** Obtain the base texture depth (or array size) (returns int32) */
 236    LLVMValueRef
 237    (*depth)(const struct lp_sampler_dynamic_state *state,
 238             struct gallivm_state *gallivm,
 239             LLVMValueRef context_ptr,
 240             unsigned texture_unit);
 241
 242    /** Obtain the first mipmap level (base level) (returns int32) */
 243    LLVMValueRef
 244    (*first_level)(const struct lp_sampler_dynamic_state *state,
 245                   struct gallivm_state *gallivm,
 246                   LLVMValueRef context_ptr,
 247                   unsigned texture_unit);
 248
 249    /** Obtain the number of mipmap levels minus one (returns int32) */
 250    LLVMValueRef
 251    (*last_level)(const struct lp_sampler_dynamic_state *state,
 252                  struct gallivm_state *gallivm,
 253                  LLVMValueRef context_ptr,
 254                  unsigned texture_unit);
 255
 256    /** Obtain stride in bytes between image rows/blocks (returns int32) */
 257    LLVMValueRef
 258    (*row_stride)(const struct lp_sampler_dynamic_state *state,
 259                  struct gallivm_state *gallivm,
 260                  LLVMValueRef context_ptr,
 261                  unsigned texture_unit);
 262
 263    /** Obtain stride in bytes between image slices (returns int32) */
 264    LLVMValueRef
 265    (*img_stride)(const struct lp_sampler_dynamic_state *state,
 266                  struct gallivm_state *gallivm,
 267                  LLVMValueRef context_ptr,
 268                  unsigned texture_unit);
 269
 270    /** Obtain pointer to base of texture */
 271    LLVMValueRef
 272    (*base_ptr)(const struct lp_sampler_dynamic_state *state,
 273                struct gallivm_state *gallivm,
 274                LLVMValueRef context_ptr,
 275                unsigned texture_unit);
 276
 277    /** Obtain pointer to array of mipmap offsets */
 278    LLVMValueRef
 279    (*mip_offsets)(const struct lp_sampler_dynamic_state *state,
 280                   struct gallivm_state *gallivm,
 281                   LLVMValueRef context_ptr,
 282                   unsigned texture_unit);
 283
 284    /** Obtain number of samples (returns int32) */
 285    LLVMValueRef
 286    (*num_samples)(const struct lp_sampler_dynamic_state *state,
 287                   struct gallivm_state *gallivm,
 288                   LLVMValueRef context_ptr,
 289                   unsigned texture_unit);
 290
 291    /** Obtain multisample stride (returns int32) */
 292    LLVMValueRef
 293    (*sample_stride)(const struct lp_sampler_dynamic_state *state,
 294                     struct gallivm_state *gallivm,
 295                     LLVMValueRef context_ptr,
 296                     unsigned texture_unit);
 297
 298    /* These are callbacks for sampler state */
 299
 300    /** Obtain texture min lod (returns float) */
 301    LLVMValueRef
 302    (*min_lod)(const struct lp_sampler_dynamic_state *state,
 303               struct gallivm_state *gallivm,
 304               LLVMValueRef context_ptr,
 305               unsigned sampler_unit);
 306
 307    /** Obtain texture max lod (returns float) */
 308    LLVMValueRef
 309    (*max_lod)(const struct lp_sampler_dynamic_state *state,
 310               struct gallivm_state *gallivm,
 311               LLVMValueRef context_ptr,
 312               unsigned sampler_unit);
 313
 314    /** Obtain texture lod bias (returns float) */
 315    LLVMValueRef
 316    (*lod_bias)(const struct lp_sampler_dynamic_state *state,
 317                struct gallivm_state *gallivm,
 318                LLVMValueRef context_ptr,
 319                unsigned sampler_unit);
 320
 321    /** Obtain texture border color (returns ptr to float[4]) */
 322    LLVMValueRef
 323    (*border_color)(const struct lp_sampler_dynamic_state *state,
 324                    struct gallivm_state *gallivm,
 325                    LLVMValueRef context_ptr,
 326                    unsigned sampler_unit);
 327
 328    /**
 329     * Obtain texture cache (returns ptr to lp_build_format_cache).
 330     *
 331     * It's optional: no caching will be done if it's NULL.
 332     */
 333    LLVMValueRef
 334    (*cache_ptr)(const struct lp_sampler_dynamic_state *state,
 335                 struct gallivm_state *gallivm,
 336                 LLVMValueRef thread_data_ptr,
 337                 unsigned unit);
 338 };
 339
 340
 341 /**
 342  * Keep all information for sampling code generation in a single place.
 343  */
 344 struct lp_build_sample_context
 345 {
 346    struct gallivm_state *gallivm;
 347
 348    const struct lp_static_texture_state *static_texture_state;
 349    const struct lp_static_sampler_state *static_sampler_state;
 350
 351    struct lp_sampler_dynamic_state *dynamic_state;
 352
 353    const struct util_format_description *format_desc;
 354
 355    /* See texture_dims() */
 356    unsigned dims;
 357
 358    /** SIMD vector width */
 359    unsigned vector_width;
 360
 361    /** number of mipmaps (valid are 1, length/4, length) */
 362    unsigned num_mips;
 363
 364    /** number of lod values (valid are 1, length/4, length) */
 365    unsigned num_lods;
 366
 367    unsigned gather_comp;
 368    boolean no_quad_lod;
 369    boolean no_brilinear;
 370    boolean no_rho_approx;
 371    boolean fetch_ms;
 372
 373    /** regular scalar float type */
 374    struct lp_type float_type;
 375    struct lp_build_context float_bld;
 376
 377    /** float vector type */
 378    struct lp_build_context float_vec_bld;
 379
 380    /** regular scalar int type */
 381    struct lp_type int_type;
 382    struct lp_build_context int_bld;
 383
 384    /** Incoming coordinates type and build context */
 385    struct lp_type coord_type;
 386    struct lp_build_context coord_bld;
 387
 388    /** Signed integer coordinates */
 389    struct lp_type int_coord_type;
 390    struct lp_build_context int_coord_bld;
 391
 392    /** Unsigned integer texture size */
 393    struct lp_type int_size_in_type;
 394    struct lp_build_context int_size_in_bld;
 395
 396    /** Float incoming texture size */
 397    struct lp_type float_size_in_type;
 398    struct lp_build_context float_size_in_bld;
 399
 400    /** Unsigned integer texture size (might be per quad) */
 401    struct lp_type int_size_type;
 402    struct lp_build_context int_size_bld;
 403
 404    /** Float texture size (might be per quad) */
 405    struct lp_type float_size_type;
 406    struct lp_build_context float_size_bld;
 407
 408    /** Output texels type and build context */
 409    struct lp_type texel_type;
 410    struct lp_build_context texel_bld;
 411
 412    /** Float level type */
 413    struct lp_type levelf_type;
 414    struct lp_build_context levelf_bld;
 415
 416    /** Int level type */
 417    struct lp_type leveli_type;
 418    struct lp_build_context leveli_bld;
 419
 420    /** Float lod type */
 421    struct lp_type lodf_type;
 422    struct lp_build_context lodf_bld;
 423
 424    /** Int lod type */
 425    struct lp_type lodi_type;
 426    struct lp_build_context lodi_bld;
 427
 428    /* Common dynamic state values */
 429    LLVMValueRef row_stride_array;
 430    LLVMValueRef img_stride_array;
 431    LLVMValueRef base_ptr;
 432    LLVMValueRef mip_offsets;
 433    LLVMValueRef cache;
 434    LLVMValueRef sample_stride;
 435
 436    /** Integer vector with texture width, height, depth */
 437    LLVMValueRef int_size;
 438
 439    LLVMValueRef border_color_clamped;
 440
 441    LLVMValueRef context_ptr;
 442 };
 443
 444
 445
 446 /**
 447  * We only support a few wrap modes in lp_build_sample_wrap_linear_int() at
 448  * this time.  Return whether the given mode is supported by that function.
 449  */
 450 static inline boolean
 451 lp_is_simple_wrap_mode(unsigned mode)
 452 {
 453    switch (mode) {
 454    case PIPE_TEX_WRAP_REPEAT:
 455    case PIPE_TEX_WRAP_CLAMP_TO_EDGE:
 456       return TRUE;
 457    default:
 458       return FALSE;
 459    }
 460 }
 461
 462
 463 static inline void
 464 apply_sampler_swizzle(struct lp_build_sample_context *bld,
 465                       LLVMValueRef *texel)
 466 {
 467    unsigned char swizzles[4];
 468
 469    swizzles[0] = bld->static_texture_state->swizzle_r;
 470    swizzles[1] = bld->static_texture_state->swizzle_g;
 471    swizzles[2] = bld->static_texture_state->swizzle_b;
 472    swizzles[3] = bld->static_texture_state->swizzle_a;
 473
 474    lp_build_swizzle_soa_inplace(&bld->texel_bld, texel, swizzles);
 475 }
 476
 477 /*
 478  * not really dimension as such, this indicates the amount of
 479  * "normal" texture coords subject to minification, wrapping etc.
 480  */
 481 static inline unsigned
 482 texture_dims(enum pipe_texture_target tex)
 483 {
 484    switch (tex) {
 485    case PIPE_TEXTURE_1D:
 486    case PIPE_TEXTURE_1D_ARRAY:
 487    case PIPE_BUFFER:
 488       return 1;
 489    case PIPE_TEXTURE_2D:
 490    case PIPE_TEXTURE_2D_ARRAY:
 491    case PIPE_TEXTURE_RECT:
 492    case PIPE_TEXTURE_CUBE:
 493    case PIPE_TEXTURE_CUBE_ARRAY:
 494       return 2;
 495    case PIPE_TEXTURE_3D:
 496       return 3;
 497    default:
 498       assert(0 && "bad texture target in texture_dims()");
 499       return 2;
 500    }
 501 }
 502
 503 static inline boolean
 504 has_layer_coord(enum pipe_texture_target tex)
 505 {
 506    switch (tex) {
 507    case PIPE_TEXTURE_1D_ARRAY:
 508    case PIPE_TEXTURE_2D_ARRAY:
 509    /* cube is not layered but 3rd coord (after cube mapping) behaves the same */
 510    case PIPE_TEXTURE_CUBE:
 511    case PIPE_TEXTURE_CUBE_ARRAY:
 512       return TRUE;
 513    default:
 514       return FALSE;
 515    }
 516 }
 517
 518
 519 boolean
 520 lp_sampler_wrap_mode_uses_border_color(unsigned mode,
 521                                        unsigned min_img_filter,
 522                                        unsigned mag_img_filter);
 523
 524 /**
 525  * Derive the sampler static state.
 526  */
 527 void
 528 lp_sampler_static_sampler_state(struct lp_static_sampler_state *state,
 529                                 const struct pipe_sampler_state *sampler);
 530
 531
 532 void
 533 lp_sampler_static_texture_state(struct lp_static_texture_state *state,
 534                                 const struct pipe_sampler_view *view);
 535
 536 void
 537 lp_sampler_static_texture_state_image(struct lp_static_texture_state *state,
 538                                       const struct pipe_image_view *view);
 539
 540 void
 541 lp_build_lod_selector(struct lp_build_sample_context *bld,
 542                       boolean is_lodq,
 543                       unsigned texture_index,
 544                       unsigned sampler_index,
 545                       LLVMValueRef s,
 546                       LLVMValueRef t,
 547                       LLVMValueRef r,
 548                       LLVMValueRef cube_rho,
 549                       const struct lp_derivatives *derivs,
 550                       LLVMValueRef lod_bias, /* optional */
 551                       LLVMValueRef explicit_lod, /* optional */
 552                       unsigned mip_filter,
 553                       LLVMValueRef *out_lod,
 554                       LLVMValueRef *out_lod_ipart,
 555                       LLVMValueRef *out_lod_fpart,
 556                       LLVMValueRef *out_lod_positive);
 557
 558 void
 559 lp_build_nearest_mip_level(struct lp_build_sample_context *bld,
 560                            unsigned texture_unit,
 561                            LLVMValueRef lod,
 562                            LLVMValueRef *level_out,
 563                            LLVMValueRef *out_of_bounds);
 564
 565 void
 566 lp_build_linear_mip_levels(struct lp_build_sample_context *bld,
 567                            unsigned texture_unit,
 568                            LLVMValueRef lod_ipart,
 569                            LLVMValueRef *lod_fpart_inout,
 570                            LLVMValueRef *level0_out,
 571                            LLVMValueRef *level1_out);
 572
 573 LLVMValueRef
 574 lp_build_get_mipmap_level(struct lp_build_sample_context *bld,
 575                           LLVMValueRef level);
 576
 577
 578 LLVMValueRef
 579 lp_build_get_mip_offsets(struct lp_build_sample_context *bld,
 580                          LLVMValueRef level);
 581
 582
 583 void
 584 lp_build_mipmap_level_sizes(struct lp_build_sample_context *bld,
 585                             LLVMValueRef ilevel,
 586                             LLVMValueRef *out_size_vec,
 587                             LLVMValueRef *row_stride_vec,
 588                             LLVMValueRef *img_stride_vec);
 589
 590
 591 void
 592 lp_build_extract_image_sizes(struct lp_build_sample_context *bld,
 593                              struct lp_build_context *size_bld,
 594                              struct lp_type coord_type,
 595                              LLVMValueRef size,
 596                              LLVMValueRef *out_width,
 597                              LLVMValueRef *out_height,
 598                              LLVMValueRef *out_depth);
 599
 600
 601 void
 602 lp_build_unnormalized_coords(struct lp_build_sample_context *bld,
 603                              LLVMValueRef flt_size,
 604                              LLVMValueRef *s,
 605                              LLVMValueRef *t,
 606                              LLVMValueRef *r);
 607
 608
 609 void
 610 lp_build_cube_lookup(struct lp_build_sample_context *bld,
 611                      LLVMValueRef *coords,
 612                      const struct lp_derivatives *derivs_in, /* optional */
 613                      LLVMValueRef *rho,
 614                      struct lp_derivatives *derivs_out, /* optional */
 615                      boolean need_derivs);
 616
 617
 618 void
 619 lp_build_cube_new_coords(struct lp_build_context *ivec_bld,
 620                          LLVMValueRef face,
 621                          LLVMValueRef x0,
 622                          LLVMValueRef x1,
 623                          LLVMValueRef y0,
 624                          LLVMValueRef y1,
 625                          LLVMValueRef max_coord,
 626                          LLVMValueRef new_faces[4],
 627                          LLVMValueRef new_xcoords[4][2],
 628                          LLVMValueRef new_ycoords[4][2]);
 629
 630
 631 void
 632 lp_build_sample_partial_offset(struct lp_build_context *bld,
 633                                unsigned block_length,
 634                                LLVMValueRef coord,
 635                                LLVMValueRef stride,
 636                                LLVMValueRef *out_offset,
 637                                LLVMValueRef *out_i);
 638
 639
 640 void
 641 lp_build_sample_offset(struct lp_build_context *bld,
 642                        const struct util_format_description *format_desc,
 643                        LLVMValueRef x,
 644                        LLVMValueRef y,
 645                        LLVMValueRef z,
 646                        LLVMValueRef y_stride,
 647                        LLVMValueRef z_stride,
 648                        LLVMValueRef *out_offset,
 649                        LLVMValueRef *out_i,
 650                        LLVMValueRef *out_j);
 651
 652
 653 void
 654 lp_build_sample_soa(const struct lp_static_texture_state *static_texture_state,
 655                     const struct lp_static_sampler_state *static_sampler_state,
 656                     struct lp_sampler_dynamic_state *dynamic_texture_state,
 657                     struct gallivm_state *gallivm,
 658                     const struct lp_sampler_params *params);
 659
 660
 661 void
 662 lp_build_coord_repeat_npot_linear(struct lp_build_sample_context *bld,
 663                                   LLVMValueRef coord_f,
 664                                   LLVMValueRef length_i,
 665                                   LLVMValueRef length_f,
 666                                   LLVMValueRef *coord0_i,
 667                                   LLVMValueRef *weight_f);
 668
 669
 670 void
 671 lp_build_size_query_soa(struct gallivm_state *gallivm,
 672                         const struct lp_static_texture_state *static_state,
 673                         struct lp_sampler_dynamic_state *dynamic_state,
 674                         const struct lp_sampler_size_query_params *params);
 675
 676 void
 677 lp_build_sample_nop(struct gallivm_state *gallivm,
 678                     struct lp_type type,
 679                     const LLVMValueRef *coords,
 680                     LLVMValueRef texel_out[4]);
 681
 682
 683 LLVMValueRef
 684 lp_build_minify(struct lp_build_context *bld,
 685                 LLVMValueRef base_size,
 686                 LLVMValueRef level,
 687                 boolean lod_scalar);
 688
 689 void
 690 lp_build_img_op_soa(const struct lp_static_texture_state *static_texture_state,
 691                       struct lp_sampler_dynamic_state *dynamic_state,
 692                       struct gallivm_state *gallivm,
 693                       const struct lp_img_params *params);
 694
 695 #ifdef __cplusplus
 696 }
 697 #endif
 698
 699 #endif /* LP_BLD_SAMPLE_H */