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,
  10  * distribute, sub license, and/or sell copies of the Software, and to
  11  * permit persons to whom the Software is furnished to do so, subject to
  12  * the following conditions:
  13  *
  14  * The above copyright notice and this permission notice (including the
  15  * next paragraph) shall be included in all copies or substantial portions
  16  * of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  19  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  20  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  21  * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
  22  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  23  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  24  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  *
  26  **************************************************************************/
  27
  28 /**
  29  * @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    LLVMValueRef texture_index_offset;
 109    unsigned sample_key;
 110    LLVMValueRef context_ptr;
 111    LLVMValueRef thread_data_ptr;
 112    const LLVMValueRef *coords;
 113    const LLVMValueRef *offsets;
 114    LLVMValueRef ms_index;
 115    LLVMValueRef lod;
 116    const struct lp_derivatives *derivs;
 117    LLVMValueRef *texel;
 118 };
 119
 120 struct lp_sampler_size_query_params
 121 {
 122    struct lp_type int_type;
 123    unsigned texture_unit;
 124    LLVMValueRef texture_unit_offset;
 125    unsigned target;
 126    LLVMValueRef context_ptr;
 127    boolean is_sviewinfo;
 128    bool samples_only;
 129    enum lp_sampler_lod_property lod_property;
 130    LLVMValueRef explicit_lod;
 131    LLVMValueRef *sizes_out;
 132 };
 133
 134 #define LP_IMG_LOAD 0
 135 #define LP_IMG_STORE 1
 136 #define LP_IMG_ATOMIC 2
 137 #define LP_IMG_ATOMIC_CAS 3
 138
 139 struct lp_img_params
 140 {
 141    struct lp_type type;
 142    unsigned image_index;
 143    unsigned img_op;
 144    unsigned target;
 145    LLVMAtomicRMWBinOp op;
 146    LLVMValueRef exec_mask;
 147    LLVMValueRef context_ptr;
 148    LLVMValueRef thread_data_ptr;
 149    const LLVMValueRef *coords;
 150    LLVMValueRef ms_index;
 151    LLVMValueRef indata[4];
 152    LLVMValueRef indata2[4];
 153    LLVMValueRef *outdata;
 154 };
 155 /**
 156  * Texture static state.
 157  *
 158  * These are the bits of state from pipe_resource/pipe_sampler_view that
 159  * are embedded in the generated code.
 160  */
 161 struct lp_static_texture_state
 162 {
 163    /* pipe_sampler_view's state */
 164    enum pipe_format format;
 165    unsigned swizzle_r:3;     /**< PIPE_SWIZZLE_* */
 166    unsigned swizzle_g:3;
 167    unsigned swizzle_b:3;
 168    unsigned swizzle_a:3;
 169
 170    /* pipe_texture's state */
 171    unsigned target:4;        /**< PIPE_TEXTURE_* */
 172    unsigned pot_width:1;     /**< is the width a power of two? */
 173    unsigned pot_height:1;
 174    unsigned pot_depth:1;
 175    unsigned level_zero_only:1;
 176 };
 177
 178
 179 /**
 180  * Sampler static state.
 181  *
 182  * These are the bits of state from pipe_sampler_state that
 183  * are embedded in the generated code.
 184  */
 185 struct lp_static_sampler_state
 186 {
 187    /* pipe_sampler_state's state */
 188    unsigned wrap_s:3;
 189    unsigned wrap_t:3;
 190    unsigned wrap_r:3;
 191    unsigned min_img_filter:2;
 192    unsigned min_mip_filter:2;
 193    unsigned mag_img_filter:2;
 194    unsigned compare_mode:1;
 195    unsigned compare_func:3;
 196    unsigned normalized_coords:1;
 197    unsigned min_max_lod_equal:1;  /**< min_lod == max_lod ? */
 198    unsigned lod_bias_non_zero:1;
 199    unsigned max_lod_pos:1;
 200    unsigned apply_min_lod:1;  /**< min_lod > 0 ? */
 201    unsigned apply_max_lod:1;  /**< max_lod < last_level ? */
 202    unsigned seamless_cube_map:1;
 203
 204    /* Hacks */
 205    unsigned force_nearest_s:1;
 206    unsigned force_nearest_t:1;
 207 };
 208
 209
 210 /**
 211  * Sampler dynamic state.
 212  *
 213  * These are the bits of state from pipe_resource/pipe_sampler_view
 214  * as well as from sampler state that are computed at runtime.
 215  *
 216  * There are obtained through callbacks, as we don't want to tie the texture
 217  * sampling code generation logic to any particular texture layout or pipe
 218  * driver.
 219  */
 220 struct lp_sampler_dynamic_state
 221 {
 222    /* First callbacks for sampler view state */
 223
 224    /** Obtain the base texture width (or number of elements) (returns int32) */
 225    LLVMValueRef
 226    (*width)(const struct lp_sampler_dynamic_state *state,
 227             struct gallivm_state *gallivm,
 228             LLVMValueRef context_ptr,
 229             unsigned texture_unit);
 230
 231    /** Obtain the base texture height (returns int32) */
 232    LLVMValueRef
 233    (*height)(const struct lp_sampler_dynamic_state *state,
 234              struct gallivm_state *gallivm,
 235              LLVMValueRef context_ptr,
 236              unsigned texture_unit);
 237
 238    /** Obtain the base texture depth (or array size) (returns int32) */
 239    LLVMValueRef
 240    (*depth)(const struct lp_sampler_dynamic_state *state,
 241             struct gallivm_state *gallivm,
 242             LLVMValueRef context_ptr,
 243             unsigned texture_unit);
 244
 245    /** Obtain the first mipmap level (base level) (returns int32) */
 246    LLVMValueRef
 247    (*first_level)(const struct lp_sampler_dynamic_state *state,
 248                   struct gallivm_state *gallivm,
 249                   LLVMValueRef context_ptr,
 250                   unsigned texture_unit);
 251
 252    /** Obtain the number of mipmap levels minus one (returns int32) */
 253    LLVMValueRef
 254    (*last_level)(const struct lp_sampler_dynamic_state *state,
 255                  struct gallivm_state *gallivm,
 256                  LLVMValueRef context_ptr,
 257                  unsigned texture_unit);
 258
 259    /** Obtain stride in bytes between image rows/blocks (returns int32) */
 260    LLVMValueRef
 261    (*row_stride)(const struct lp_sampler_dynamic_state *state,
 262                  struct gallivm_state *gallivm,
 263                  LLVMValueRef context_ptr,
 264                  unsigned texture_unit);
 265
 266    /** Obtain stride in bytes between image slices (returns int32) */
 267    LLVMValueRef
 268    (*img_stride)(const struct lp_sampler_dynamic_state *state,
 269                  struct gallivm_state *gallivm,
 270                  LLVMValueRef context_ptr,
 271                  unsigned texture_unit);
 272
 273    /** Obtain pointer to base of texture */
 274    LLVMValueRef
 275    (*base_ptr)(const struct lp_sampler_dynamic_state *state,
 276                struct gallivm_state *gallivm,
 277                LLVMValueRef context_ptr,
 278                unsigned texture_unit);
 279
 280    /** Obtain pointer to array of mipmap offsets */
 281    LLVMValueRef
 282    (*mip_offsets)(const struct lp_sampler_dynamic_state *state,
 283                   struct gallivm_state *gallivm,
 284                   LLVMValueRef context_ptr,
 285                   unsigned texture_unit);
 286
 287    /** Obtain number of samples (returns int32) */
 288    LLVMValueRef
 289    (*num_samples)(const struct lp_sampler_dynamic_state *state,
 290                   struct gallivm_state *gallivm,
 291                   LLVMValueRef context_ptr,
 292                   unsigned texture_unit);
 293
 294    /** Obtain multisample stride (returns int32) */
 295    LLVMValueRef
 296    (*sample_stride)(const struct lp_sampler_dynamic_state *state,
 297                     struct gallivm_state *gallivm,
 298                     LLVMValueRef context_ptr,
 299                     unsigned texture_unit);
 300
 301    /* These are callbacks for sampler state */
 302
 303    /** Obtain texture min lod (returns float) */
 304    LLVMValueRef
 305    (*min_lod)(const struct lp_sampler_dynamic_state *state,
 306               struct gallivm_state *gallivm,
 307               LLVMValueRef context_ptr,
 308               unsigned sampler_unit);
 309
 310    /** Obtain texture max lod (returns float) */
 311    LLVMValueRef
 312    (*max_lod)(const struct lp_sampler_dynamic_state *state,
 313               struct gallivm_state *gallivm,
 314               LLVMValueRef context_ptr,
 315               unsigned sampler_unit);
 316
 317    /** Obtain texture lod bias (returns float) */
 318    LLVMValueRef
 319    (*lod_bias)(const struct lp_sampler_dynamic_state *state,
 320                struct gallivm_state *gallivm,
 321                LLVMValueRef context_ptr,
 322                unsigned sampler_unit);
 323
 324    /** Obtain texture border color (returns ptr to float[4]) */
 325    LLVMValueRef
 326    (*border_color)(const struct lp_sampler_dynamic_state *state,
 327                    struct gallivm_state *gallivm,
 328                    LLVMValueRef context_ptr,
 329                    unsigned sampler_unit);
 330
 331    /**
 332     * Obtain texture cache (returns ptr to lp_build_format_cache).
 333     *
 334     * It's optional: no caching will be done if it's NULL.
 335     */
 336    LLVMValueRef
 337    (*cache_ptr)(const struct lp_sampler_dynamic_state *state,
 338                 struct gallivm_state *gallivm,
 339                 LLVMValueRef thread_data_ptr,
 340                 unsigned unit);
 341 };
 342
 343
 344 /**
 345  * Keep all information for sampling code generation in a single place.
 346  */
 347 struct lp_build_sample_context
 348 {
 349    struct gallivm_state *gallivm;
 350
 351    const struct lp_static_texture_state *static_texture_state;
 352    const struct lp_static_sampler_state *static_sampler_state;
 353
 354    struct lp_sampler_dynamic_state *dynamic_state;
 355
 356    const struct util_format_description *format_desc;
 357
 358    /* See texture_dims() */
 359    unsigned dims;
 360
 361    /** SIMD vector width */
 362    unsigned vector_width;
 363
 364    /** number of mipmaps (valid are 1, length/4, length) */
 365    unsigned num_mips;
 366
 367    /** number of lod values (valid are 1, length/4, length) */
 368    unsigned num_lods;
 369
 370    unsigned gather_comp;
 371    boolean no_quad_lod;
 372    boolean no_brilinear;
 373    boolean no_rho_approx;
 374    boolean fetch_ms;
 375
 376    /** regular scalar float type */
 377    struct lp_type float_type;
 378    struct lp_build_context float_bld;
 379
 380    /** float vector type */
 381    struct lp_build_context float_vec_bld;
 382
 383    /** regular scalar int type */
 384    struct lp_type int_type;
 385    struct lp_build_context int_bld;
 386
 387    /** Incoming coordinates type and build context */
 388    struct lp_type coord_type;
 389    struct lp_build_context coord_bld;
 390
 391    /** Signed integer coordinates */
 392    struct lp_type int_coord_type;
 393    struct lp_build_context int_coord_bld;
 394
 395    /** Unsigned integer texture size */
 396    struct lp_type int_size_in_type;
 397    struct lp_build_context int_size_in_bld;
 398
 399    /** Float incoming texture size */
 400    struct lp_type float_size_in_type;
 401    struct lp_build_context float_size_in_bld;
 402
 403    /** Unsigned integer texture size (might be per quad) */
 404    struct lp_type int_size_type;
 405    struct lp_build_context int_size_bld;
 406
 407    /** Float texture size (might be per quad) */
 408    struct lp_type float_size_type;
 409    struct lp_build_context float_size_bld;
 410
 411    /** Output texels type and build context */
 412    struct lp_type texel_type;
 413    struct lp_build_context texel_bld;
 414
 415    /** Float level type */
 416    struct lp_type levelf_type;
 417    struct lp_build_context levelf_bld;
 418
 419    /** Int level type */
 420    struct lp_type leveli_type;
 421    struct lp_build_context leveli_bld;
 422
 423    /** Float lod type */
 424    struct lp_type lodf_type;
 425    struct lp_build_context lodf_bld;
 426
 427    /** Int lod type */
 428    struct lp_type lodi_type;
 429    struct lp_build_context lodi_bld;
 430
 431    /* Common dynamic state values */
 432    LLVMValueRef row_stride_array;
 433    LLVMValueRef img_stride_array;
 434    LLVMValueRef base_ptr;
 435    LLVMValueRef mip_offsets;
 436    LLVMValueRef cache;
 437    LLVMValueRef sample_stride;
 438
 439    /** Integer vector with texture width, height, depth */
 440    LLVMValueRef int_size;
 441
 442    LLVMValueRef border_color_clamped;
 443
 444    LLVMValueRef context_ptr;
 445 };
 446
 447 /*
 448  * Indirect texture access context
 449  *
 450  * This is used to store info across building
 451  * and indirect texture switch statement.
 452  */
 453 struct lp_build_sample_array_switch {
 454    struct gallivm_state *gallivm;
 455    struct lp_sampler_params params;
 456    unsigned base, range;
 457    LLVMValueRef switch_ref;
 458    LLVMBasicBlockRef merge_ref;
 459    LLVMValueRef phi;
 460 };
 461
 462
 463 /**
 464  * We only support a few wrap modes in lp_build_sample_wrap_linear_int() at
 465  * this time.  Return whether the given mode is supported by that function.
 466  */
 467 static inline boolean
 468 lp_is_simple_wrap_mode(unsigned mode)
 469 {
 470    switch (mode) {
 471    case PIPE_TEX_WRAP_REPEAT:
 472    case PIPE_TEX_WRAP_CLAMP_TO_EDGE:
 473       return TRUE;
 474    default:
 475       return FALSE;
 476    }
 477 }
 478
 479
 480 static inline void
 481 apply_sampler_swizzle(struct lp_build_sample_context *bld,
 482                       LLVMValueRef *texel)
 483 {
 484    unsigned char swizzles[4];
 485
 486    swizzles[0] = bld->static_texture_state->swizzle_r;
 487    swizzles[1] = bld->static_texture_state->swizzle_g;
 488    swizzles[2] = bld->static_texture_state->swizzle_b;
 489    swizzles[3] = bld->static_texture_state->swizzle_a;
 490
 491    lp_build_swizzle_soa_inplace(&bld->texel_bld, texel, swizzles);
 492 }
 493
 494 /*
 495  * not really dimension as such, this indicates the amount of
 496  * "normal" texture coords subject to minification, wrapping etc.
 497  */
 498 static inline unsigned
 499 texture_dims(enum pipe_texture_target tex)
 500 {
 501    switch (tex) {
 502    case PIPE_TEXTURE_1D:
 503    case PIPE_TEXTURE_1D_ARRAY:
 504    case PIPE_BUFFER:
 505       return 1;
 506    case PIPE_TEXTURE_2D:
 507    case PIPE_TEXTURE_2D_ARRAY:
 508    case PIPE_TEXTURE_RECT:
 509    case PIPE_TEXTURE_CUBE:
 510    case PIPE_TEXTURE_CUBE_ARRAY:
 511       return 2;
 512    case PIPE_TEXTURE_3D:
 513       return 3;
 514    default:
 515       assert(0 && "bad texture target in texture_dims()");
 516       return 2;
 517    }
 518 }
 519
 520 static inline boolean
 521 has_layer_coord(enum pipe_texture_target tex)
 522 {
 523    switch (tex) {
 524    case PIPE_TEXTURE_1D_ARRAY:
 525    case PIPE_TEXTURE_2D_ARRAY:
 526    /* cube is not layered but 3rd coord (after cube mapping) behaves the same */
 527    case PIPE_TEXTURE_CUBE:
 528    case PIPE_TEXTURE_CUBE_ARRAY:
 529       return TRUE;
 530    default:
 531       return FALSE;
 532    }
 533 }
 534
 535
 536 boolean
 537 lp_sampler_wrap_mode_uses_border_color(unsigned mode,
 538                                        unsigned min_img_filter,
 539                                        unsigned mag_img_filter);
 540
 541 /**
 542  * Derive the sampler static state.
 543  */
 544 void
 545 lp_sampler_static_sampler_state(struct lp_static_sampler_state *state,
 546                                 const struct pipe_sampler_state *sampler);
 547
 548
 549 void
 550 lp_sampler_static_texture_state(struct lp_static_texture_state *state,
 551                                 const struct pipe_sampler_view *view);
 552
 553 void
 554 lp_sampler_static_texture_state_image(struct lp_static_texture_state *state,
 555                                       const struct pipe_image_view *view);
 556
 557 void
 558 lp_build_lod_selector(struct lp_build_sample_context *bld,
 559                       boolean is_lodq,
 560                       unsigned texture_index,
 561                       unsigned sampler_index,
 562                       LLVMValueRef s,
 563                       LLVMValueRef t,
 564                       LLVMValueRef r,
 565                       LLVMValueRef cube_rho,
 566                       const struct lp_derivatives *derivs,
 567                       LLVMValueRef lod_bias, /* optional */
 568                       LLVMValueRef explicit_lod, /* optional */
 569                       unsigned mip_filter,
 570                       LLVMValueRef *out_lod,
 571                       LLVMValueRef *out_lod_ipart,
 572                       LLVMValueRef *out_lod_fpart,
 573                       LLVMValueRef *out_lod_positive);
 574
 575 void
 576 lp_build_nearest_mip_level(struct lp_build_sample_context *bld,
 577                            unsigned texture_unit,
 578                            LLVMValueRef lod,
 579                            LLVMValueRef *level_out,
 580                            LLVMValueRef *out_of_bounds);
 581
 582 void
 583 lp_build_linear_mip_levels(struct lp_build_sample_context *bld,
 584                            unsigned texture_unit,
 585                            LLVMValueRef lod_ipart,
 586                            LLVMValueRef *lod_fpart_inout,
 587                            LLVMValueRef *level0_out,
 588                            LLVMValueRef *level1_out);
 589
 590 LLVMValueRef
 591 lp_build_get_mipmap_level(struct lp_build_sample_context *bld,
 592                           LLVMValueRef level);
 593
 594
 595 LLVMValueRef
 596 lp_build_get_mip_offsets(struct lp_build_sample_context *bld,
 597                          LLVMValueRef level);
 598
 599
 600 void
 601 lp_build_mipmap_level_sizes(struct lp_build_sample_context *bld,
 602                             LLVMValueRef ilevel,
 603                             LLVMValueRef *out_size_vec,
 604                             LLVMValueRef *row_stride_vec,
 605                             LLVMValueRef *img_stride_vec);
 606
 607
 608 void
 609 lp_build_extract_image_sizes(struct lp_build_sample_context *bld,
 610                              struct lp_build_context *size_bld,
 611                              struct lp_type coord_type,
 612                              LLVMValueRef size,
 613                              LLVMValueRef *out_width,
 614                              LLVMValueRef *out_height,
 615                              LLVMValueRef *out_depth);
 616
 617
 618 void
 619 lp_build_unnormalized_coords(struct lp_build_sample_context *bld,
 620                              LLVMValueRef flt_size,
 621                              LLVMValueRef *s,
 622                              LLVMValueRef *t,
 623                              LLVMValueRef *r);
 624
 625
 626 void
 627 lp_build_cube_lookup(struct lp_build_sample_context *bld,
 628                      LLVMValueRef *coords,
 629                      const struct lp_derivatives *derivs_in, /* optional */
 630                      LLVMValueRef *rho,
 631                      struct lp_derivatives *derivs_out, /* optional */
 632                      boolean need_derivs);
 633
 634
 635 void
 636 lp_build_cube_new_coords(struct lp_build_context *ivec_bld,
 637                          LLVMValueRef face,
 638                          LLVMValueRef x0,
 639                          LLVMValueRef x1,
 640                          LLVMValueRef y0,
 641                          LLVMValueRef y1,
 642                          LLVMValueRef max_coord,
 643                          LLVMValueRef new_faces[4],
 644                          LLVMValueRef new_xcoords[4][2],
 645                          LLVMValueRef new_ycoords[4][2]);
 646
 647
 648 void
 649 lp_build_sample_partial_offset(struct lp_build_context *bld,
 650                                unsigned block_length,
 651                                LLVMValueRef coord,
 652                                LLVMValueRef stride,
 653                                LLVMValueRef *out_offset,
 654                                LLVMValueRef *out_i);
 655
 656
 657 void
 658 lp_build_sample_offset(struct lp_build_context *bld,
 659                        const struct util_format_description *format_desc,
 660                        LLVMValueRef x,
 661                        LLVMValueRef y,
 662                        LLVMValueRef z,
 663                        LLVMValueRef y_stride,
 664                        LLVMValueRef z_stride,
 665                        LLVMValueRef *out_offset,
 666                        LLVMValueRef *out_i,
 667                        LLVMValueRef *out_j);
 668
 669
 670 void
 671 lp_build_sample_soa(const struct lp_static_texture_state *static_texture_state,
 672                     const struct lp_static_sampler_state *static_sampler_state,
 673                     struct lp_sampler_dynamic_state *dynamic_texture_state,
 674                     struct gallivm_state *gallivm,
 675                     const struct lp_sampler_params *params);
 676
 677
 678 void
 679 lp_build_coord_repeat_npot_linear(struct lp_build_sample_context *bld,
 680                                   LLVMValueRef coord_f,
 681                                   LLVMValueRef length_i,
 682                                   LLVMValueRef length_f,
 683                                   LLVMValueRef *coord0_i,
 684                                   LLVMValueRef *weight_f);
 685
 686
 687 void
 688 lp_build_size_query_soa(struct gallivm_state *gallivm,
 689                         const struct lp_static_texture_state *static_state,
 690                         struct lp_sampler_dynamic_state *dynamic_state,
 691                         const struct lp_sampler_size_query_params *params);
 692
 693 void
 694 lp_build_sample_nop(struct gallivm_state *gallivm,
 695                     struct lp_type type,
 696                     const LLVMValueRef *coords,
 697                     LLVMValueRef texel_out[4]);
 698
 699
 700 LLVMValueRef
 701 lp_build_minify(struct lp_build_context *bld,
 702                 LLVMValueRef base_size,
 703                 LLVMValueRef level,
 704                 boolean lod_scalar);
 705
 706 void
 707 lp_build_img_op_soa(const struct lp_static_texture_state *static_texture_state,
 708                       struct lp_sampler_dynamic_state *dynamic_state,
 709                       struct gallivm_state *gallivm,
 710                       const struct lp_img_params *params);
 711
 712 void
 713 lp_build_sample_array_init_soa(struct lp_build_sample_array_switch *switch_info,
 714                            struct gallivm_state *gallivm,
 715                            const struct lp_sampler_params *params,
 716                            LLVMValueRef idx,
 717                            unsigned base, unsigned range);
 718
 719 void
 720 lp_build_sample_array_case_soa(struct lp_build_sample_array_switch *switch_info,
 721                            int idx,
 722                            const struct lp_static_texture_state *static_texture_state,
 723                            const struct lp_static_sampler_state *static_sampler_state,
 724                            struct lp_sampler_dynamic_state *dynamic_texture_state);
 725
 726 void lp_build_sample_array_fini_soa(struct lp_build_sample_array_switch *switch_info);
 727 #ifdef __cplusplus
 728 }
 729 #endif
 730
 731 #endif /* LP_BLD_SAMPLE_H */