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    LLVMValueRef image_index_offset;
 144    unsigned img_op;
 145    unsigned target;
 146    LLVMAtomicRMWBinOp op;
 147    LLVMValueRef exec_mask;
 148    LLVMValueRef context_ptr;
 149    LLVMValueRef thread_data_ptr;
 150    const LLVMValueRef *coords;
 151    LLVMValueRef ms_index;
 152    LLVMValueRef indata[4];
 153    LLVMValueRef indata2[4];
 154    LLVMValueRef *outdata;
 155 };
 156 /**
 157  * Texture static state.
 158  *
 159  * These are the bits of state from pipe_resource/pipe_sampler_view that
 160  * are embedded in the generated code.
 161  */
 162 struct lp_static_texture_state
 163 {
 164    /* pipe_sampler_view's state */
 165    enum pipe_format format;
 166    unsigned swizzle_r:3;     /**< PIPE_SWIZZLE_* */
 167    unsigned swizzle_g:3;
 168    unsigned swizzle_b:3;
 169    unsigned swizzle_a:3;
 170
 171    /* pipe_texture's state */
 172    unsigned target:4;        /**< PIPE_TEXTURE_* */
 173    unsigned pot_width:1;     /**< is the width a power of two? */
 174    unsigned pot_height:1;
 175    unsigned pot_depth:1;
 176    unsigned level_zero_only:1;
 177 };
 178
 179
 180 /**
 181  * Sampler static state.
 182  *
 183  * These are the bits of state from pipe_sampler_state that
 184  * are embedded in the generated code.
 185  */
 186 struct lp_static_sampler_state
 187 {
 188    /* pipe_sampler_state's state */
 189    unsigned wrap_s:3;
 190    unsigned wrap_t:3;
 191    unsigned wrap_r:3;
 192    unsigned min_img_filter:2;
 193    unsigned min_mip_filter:2;
 194    unsigned mag_img_filter:2;
 195    unsigned compare_mode:1;
 196    unsigned compare_func:3;
 197    unsigned normalized_coords:1;
 198    unsigned min_max_lod_equal:1;  /**< min_lod == max_lod ? */
 199    unsigned lod_bias_non_zero:1;
 200    unsigned max_lod_pos:1;
 201    unsigned apply_min_lod:1;  /**< min_lod > 0 ? */
 202    unsigned apply_max_lod:1;  /**< max_lod < last_level ? */
 203    unsigned seamless_cube_map:1;
 204
 205    /* Hacks */
 206    unsigned force_nearest_s:1;
 207    unsigned force_nearest_t:1;
 208 };
 209
 210
 211 /**
 212  * Sampler dynamic state.
 213  *
 214  * These are the bits of state from pipe_resource/pipe_sampler_view
 215  * as well as from sampler state that are computed at runtime.
 216  *
 217  * There are obtained through callbacks, as we don't want to tie the texture
 218  * sampling code generation logic to any particular texture layout or pipe
 219  * driver.
 220  */
 221 struct lp_sampler_dynamic_state
 222 {
 223    /* First callbacks for sampler view state */
 224
 225    /** Obtain the base texture width (or number of elements) (returns int32) */
 226    LLVMValueRef
 227    (*width)(const struct lp_sampler_dynamic_state *state,
 228             struct gallivm_state *gallivm,
 229             LLVMValueRef context_ptr,
 230             unsigned texture_unit, LLVMValueRef texture_unit_offset);
 231
 232    /** Obtain the base texture height (returns int32) */
 233    LLVMValueRef
 234    (*height)(const struct lp_sampler_dynamic_state *state,
 235              struct gallivm_state *gallivm,
 236              LLVMValueRef context_ptr,
 237              unsigned texture_unit, LLVMValueRef texture_unit_offset);
 238
 239    /** Obtain the base texture depth (or array size) (returns int32) */
 240    LLVMValueRef
 241    (*depth)(const struct lp_sampler_dynamic_state *state,
 242             struct gallivm_state *gallivm,
 243             LLVMValueRef context_ptr,
 244             unsigned texture_unit, LLVMValueRef texture_unit_offset);
 245
 246    /** Obtain the first mipmap level (base level) (returns int32) */
 247    LLVMValueRef
 248    (*first_level)(const struct lp_sampler_dynamic_state *state,
 249                   struct gallivm_state *gallivm,
 250                   LLVMValueRef context_ptr,
 251                   unsigned texture_unit, LLVMValueRef texture_unit_offset);
 252
 253    /** Obtain the number of mipmap levels minus one (returns int32) */
 254    LLVMValueRef
 255    (*last_level)(const struct lp_sampler_dynamic_state *state,
 256                  struct gallivm_state *gallivm,
 257                  LLVMValueRef context_ptr,
 258                  unsigned texture_unit, LLVMValueRef texture_unit_offset);
 259
 260    /** Obtain stride in bytes between image rows/blocks (returns int32) */
 261    LLVMValueRef
 262    (*row_stride)(const struct lp_sampler_dynamic_state *state,
 263                  struct gallivm_state *gallivm,
 264                  LLVMValueRef context_ptr,
 265                  unsigned texture_unit, LLVMValueRef texture_unit_offset);
 266
 267    /** Obtain stride in bytes between image slices (returns int32) */
 268    LLVMValueRef
 269    (*img_stride)(const struct lp_sampler_dynamic_state *state,
 270                  struct gallivm_state *gallivm,
 271                  LLVMValueRef context_ptr,
 272                  unsigned texture_unit, LLVMValueRef texture_unit_offset);
 273
 274    /** Obtain pointer to base of texture */
 275    LLVMValueRef
 276    (*base_ptr)(const struct lp_sampler_dynamic_state *state,
 277                struct gallivm_state *gallivm,
 278                LLVMValueRef context_ptr,
 279                unsigned texture_unit, LLVMValueRef texture_unit_offset);
 280
 281    /** Obtain pointer to array of mipmap offsets */
 282    LLVMValueRef
 283    (*mip_offsets)(const struct lp_sampler_dynamic_state *state,
 284                   struct gallivm_state *gallivm,
 285                   LLVMValueRef context_ptr,
 286                   unsigned texture_unit, LLVMValueRef texture_unit_offset);
 287
 288    /** Obtain number of samples (returns int32) */
 289    LLVMValueRef
 290    (*num_samples)(const struct lp_sampler_dynamic_state *state,
 291                   struct gallivm_state *gallivm,
 292                   LLVMValueRef context_ptr,
 293                   unsigned texture_unit, LLVMValueRef texture_unit_offset);
 294
 295    /** Obtain multisample stride (returns int32) */
 296    LLVMValueRef
 297    (*sample_stride)(const struct lp_sampler_dynamic_state *state,
 298                     struct gallivm_state *gallivm,
 299                     LLVMValueRef context_ptr,
 300                     unsigned texture_unit, LLVMValueRef texture_unit_offset);
 301
 302    /* These are callbacks for sampler state */
 303
 304    /** Obtain texture min lod (returns float) */
 305    LLVMValueRef
 306    (*min_lod)(const struct lp_sampler_dynamic_state *state,
 307               struct gallivm_state *gallivm,
 308               LLVMValueRef context_ptr,
 309               unsigned sampler_unit);
 310
 311    /** Obtain texture max lod (returns float) */
 312    LLVMValueRef
 313    (*max_lod)(const struct lp_sampler_dynamic_state *state,
 314               struct gallivm_state *gallivm,
 315               LLVMValueRef context_ptr,
 316               unsigned sampler_unit);
 317
 318    /** Obtain texture lod bias (returns float) */
 319    LLVMValueRef
 320    (*lod_bias)(const struct lp_sampler_dynamic_state *state,
 321                struct gallivm_state *gallivm,
 322                LLVMValueRef context_ptr,
 323                unsigned sampler_unit);
 324
 325    /** Obtain texture border color (returns ptr to float[4]) */
 326    LLVMValueRef
 327    (*border_color)(const struct lp_sampler_dynamic_state *state,
 328                    struct gallivm_state *gallivm,
 329                    LLVMValueRef context_ptr,
 330                    unsigned sampler_unit);
 331
 332    /**
 333     * Obtain texture cache (returns ptr to lp_build_format_cache).
 334     *
 335     * It's optional: no caching will be done if it's NULL.
 336     */
 337    LLVMValueRef
 338    (*cache_ptr)(const struct lp_sampler_dynamic_state *state,
 339                 struct gallivm_state *gallivm,
 340                 LLVMValueRef thread_data_ptr,
 341                 unsigned unit);
 342 };
 343
 344
 345 /**
 346  * Keep all information for sampling code generation in a single place.
 347  */
 348 struct lp_build_sample_context
 349 {
 350    struct gallivm_state *gallivm;
 351
 352    const struct lp_static_texture_state *static_texture_state;
 353    const struct lp_static_sampler_state *static_sampler_state;
 354
 355    struct lp_sampler_dynamic_state *dynamic_state;
 356
 357    const struct util_format_description *format_desc;
 358
 359    /* See texture_dims() */
 360    unsigned dims;
 361
 362    /** SIMD vector width */
 363    unsigned vector_width;
 364
 365    /** number of mipmaps (valid are 1, length/4, length) */
 366    unsigned num_mips;
 367
 368    /** number of lod values (valid are 1, length/4, length) */
 369    unsigned num_lods;
 370
 371    unsigned gather_comp;
 372    boolean no_quad_lod;
 373    boolean no_brilinear;
 374    boolean no_rho_approx;
 375    boolean fetch_ms;
 376
 377    /** regular scalar float type */
 378    struct lp_type float_type;
 379    struct lp_build_context float_bld;
 380
 381    /** float vector type */
 382    struct lp_build_context float_vec_bld;
 383
 384    /** regular scalar int type */
 385    struct lp_type int_type;
 386    struct lp_build_context int_bld;
 387
 388    /** Incoming coordinates type and build context */
 389    struct lp_type coord_type;
 390    struct lp_build_context coord_bld;
 391
 392    /** Signed integer coordinates */
 393    struct lp_type int_coord_type;
 394    struct lp_build_context int_coord_bld;
 395
 396    /** Unsigned integer texture size */
 397    struct lp_type int_size_in_type;
 398    struct lp_build_context int_size_in_bld;
 399
 400    /** Float incoming texture size */
 401    struct lp_type float_size_in_type;
 402    struct lp_build_context float_size_in_bld;
 403
 404    /** Unsigned integer texture size (might be per quad) */
 405    struct lp_type int_size_type;
 406    struct lp_build_context int_size_bld;
 407
 408    /** Float texture size (might be per quad) */
 409    struct lp_type float_size_type;
 410    struct lp_build_context float_size_bld;
 411
 412    /** Output texels type and build context */
 413    struct lp_type texel_type;
 414    struct lp_build_context texel_bld;
 415
 416    /** Float level type */
 417    struct lp_type levelf_type;
 418    struct lp_build_context levelf_bld;
 419
 420    /** Int level type */
 421    struct lp_type leveli_type;
 422    struct lp_build_context leveli_bld;
 423
 424    /** Float lod type */
 425    struct lp_type lodf_type;
 426    struct lp_build_context lodf_bld;
 427
 428    /** Int lod type */
 429    struct lp_type lodi_type;
 430    struct lp_build_context lodi_bld;
 431
 432    /* Common dynamic state values */
 433    LLVMValueRef row_stride_array;
 434    LLVMValueRef img_stride_array;
 435    LLVMValueRef base_ptr;
 436    LLVMValueRef mip_offsets;
 437    LLVMValueRef cache;
 438    LLVMValueRef sample_stride;
 439
 440    /** Integer vector with texture width, height, depth */
 441    LLVMValueRef int_size;
 442
 443    LLVMValueRef border_color_clamped;
 444
 445    LLVMValueRef context_ptr;
 446 };
 447
 448 /*
 449  * Indirect texture access context
 450  *
 451  * This is used to store info across building
 452  * and indirect texture switch statement.
 453  */
 454 struct lp_build_sample_array_switch {
 455    struct gallivm_state *gallivm;
 456    struct lp_sampler_params params;
 457    unsigned base, range;
 458    LLVMValueRef switch_ref;
 459    LLVMBasicBlockRef merge_ref;
 460    LLVMValueRef phi;
 461 };
 462
 463
 464 /**
 465  * We only support a few wrap modes in lp_build_sample_wrap_linear_int() at
 466  * this time.  Return whether the given mode is supported by that function.
 467  */
 468 static inline boolean
 469 lp_is_simple_wrap_mode(unsigned mode)
 470 {
 471    switch (mode) {
 472    case PIPE_TEX_WRAP_REPEAT:
 473    case PIPE_TEX_WRAP_CLAMP_TO_EDGE:
 474       return TRUE;
 475    default:
 476       return FALSE;
 477    }
 478 }
 479
 480
 481 static inline void
 482 apply_sampler_swizzle(struct lp_build_sample_context *bld,
 483                       LLVMValueRef *texel)
 484 {
 485    unsigned char swizzles[4];
 486
 487    swizzles[0] = bld->static_texture_state->swizzle_r;
 488    swizzles[1] = bld->static_texture_state->swizzle_g;
 489    swizzles[2] = bld->static_texture_state->swizzle_b;
 490    swizzles[3] = bld->static_texture_state->swizzle_a;
 491
 492    lp_build_swizzle_soa_inplace(&bld->texel_bld, texel, swizzles);
 493 }
 494
 495 /*
 496  * not really dimension as such, this indicates the amount of
 497  * "normal" texture coords subject to minification, wrapping etc.
 498  */
 499 static inline unsigned
 500 texture_dims(enum pipe_texture_target tex)
 501 {
 502    switch (tex) {
 503    case PIPE_TEXTURE_1D:
 504    case PIPE_TEXTURE_1D_ARRAY:
 505    case PIPE_BUFFER:
 506       return 1;
 507    case PIPE_TEXTURE_2D:
 508    case PIPE_TEXTURE_2D_ARRAY:
 509    case PIPE_TEXTURE_RECT:
 510    case PIPE_TEXTURE_CUBE:
 511    case PIPE_TEXTURE_CUBE_ARRAY:
 512       return 2;
 513    case PIPE_TEXTURE_3D:
 514       return 3;
 515    default:
 516       assert(0 && "bad texture target in texture_dims()");
 517       return 2;
 518    }
 519 }
 520
 521 static inline boolean
 522 has_layer_coord(enum pipe_texture_target tex)
 523 {
 524    switch (tex) {
 525    case PIPE_TEXTURE_1D_ARRAY:
 526    case PIPE_TEXTURE_2D_ARRAY:
 527    /* cube is not layered but 3rd coord (after cube mapping) behaves the same */
 528    case PIPE_TEXTURE_CUBE:
 529    case PIPE_TEXTURE_CUBE_ARRAY:
 530       return TRUE;
 531    default:
 532       return FALSE;
 533    }
 534 }
 535
 536
 537 boolean
 538 lp_sampler_wrap_mode_uses_border_color(unsigned mode,
 539                                        unsigned min_img_filter,
 540                                        unsigned mag_img_filter);
 541
 542 /**
 543  * Derive the sampler static state.
 544  */
 545 void
 546 lp_sampler_static_sampler_state(struct lp_static_sampler_state *state,
 547                                 const struct pipe_sampler_state *sampler);
 548
 549
 550 void
 551 lp_sampler_static_texture_state(struct lp_static_texture_state *state,
 552                                 const struct pipe_sampler_view *view);
 553
 554 void
 555 lp_sampler_static_texture_state_image(struct lp_static_texture_state *state,
 556                                       const struct pipe_image_view *view);
 557
 558 void
 559 lp_build_lod_selector(struct lp_build_sample_context *bld,
 560                       boolean is_lodq,
 561                       unsigned texture_index,
 562                       unsigned sampler_index,
 563                       LLVMValueRef s,
 564                       LLVMValueRef t,
 565                       LLVMValueRef r,
 566                       LLVMValueRef cube_rho,
 567                       const struct lp_derivatives *derivs,
 568                       LLVMValueRef lod_bias, /* optional */
 569                       LLVMValueRef explicit_lod, /* optional */
 570                       unsigned mip_filter,
 571                       LLVMValueRef *out_lod,
 572                       LLVMValueRef *out_lod_ipart,
 573                       LLVMValueRef *out_lod_fpart,
 574                       LLVMValueRef *out_lod_positive);
 575
 576 void
 577 lp_build_nearest_mip_level(struct lp_build_sample_context *bld,
 578                            unsigned texture_unit,
 579                            LLVMValueRef lod,
 580                            LLVMValueRef *level_out,
 581                            LLVMValueRef *out_of_bounds);
 582
 583 void
 584 lp_build_linear_mip_levels(struct lp_build_sample_context *bld,
 585                            unsigned texture_unit,
 586                            LLVMValueRef lod_ipart,
 587                            LLVMValueRef *lod_fpart_inout,
 588                            LLVMValueRef *level0_out,
 589                            LLVMValueRef *level1_out);
 590
 591 LLVMValueRef
 592 lp_build_get_mipmap_level(struct lp_build_sample_context *bld,
 593                           LLVMValueRef level);
 594
 595
 596 LLVMValueRef
 597 lp_build_get_mip_offsets(struct lp_build_sample_context *bld,
 598                          LLVMValueRef level);
 599
 600
 601 void
 602 lp_build_mipmap_level_sizes(struct lp_build_sample_context *bld,
 603                             LLVMValueRef ilevel,
 604                             LLVMValueRef *out_size_vec,
 605                             LLVMValueRef *row_stride_vec,
 606                             LLVMValueRef *img_stride_vec);
 607
 608
 609 void
 610 lp_build_extract_image_sizes(struct lp_build_sample_context *bld,
 611                              struct lp_build_context *size_bld,
 612                              struct lp_type coord_type,
 613                              LLVMValueRef size,
 614                              LLVMValueRef *out_width,
 615                              LLVMValueRef *out_height,
 616                              LLVMValueRef *out_depth);
 617
 618
 619 void
 620 lp_build_unnormalized_coords(struct lp_build_sample_context *bld,
 621                              LLVMValueRef flt_size,
 622                              LLVMValueRef *s,
 623                              LLVMValueRef *t,
 624                              LLVMValueRef *r);
 625
 626
 627 void
 628 lp_build_cube_lookup(struct lp_build_sample_context *bld,
 629                      LLVMValueRef *coords,
 630                      const struct lp_derivatives *derivs_in, /* optional */
 631                      LLVMValueRef *rho,
 632                      struct lp_derivatives *derivs_out, /* optional */
 633                      boolean need_derivs);
 634
 635
 636 void
 637 lp_build_cube_new_coords(struct lp_build_context *ivec_bld,
 638                          LLVMValueRef face,
 639                          LLVMValueRef x0,
 640                          LLVMValueRef x1,
 641                          LLVMValueRef y0,
 642                          LLVMValueRef y1,
 643                          LLVMValueRef max_coord,
 644                          LLVMValueRef new_faces[4],
 645                          LLVMValueRef new_xcoords[4][2],
 646                          LLVMValueRef new_ycoords[4][2]);
 647
 648
 649 void
 650 lp_build_sample_partial_offset(struct lp_build_context *bld,
 651                                unsigned block_length,
 652                                LLVMValueRef coord,
 653                                LLVMValueRef stride,
 654                                LLVMValueRef *out_offset,
 655                                LLVMValueRef *out_i);
 656
 657
 658 void
 659 lp_build_sample_offset(struct lp_build_context *bld,
 660                        const struct util_format_description *format_desc,
 661                        LLVMValueRef x,
 662                        LLVMValueRef y,
 663                        LLVMValueRef z,
 664                        LLVMValueRef y_stride,
 665                        LLVMValueRef z_stride,
 666                        LLVMValueRef *out_offset,
 667                        LLVMValueRef *out_i,
 668                        LLVMValueRef *out_j);
 669
 670
 671 void
 672 lp_build_sample_soa(const struct lp_static_texture_state *static_texture_state,
 673                     const struct lp_static_sampler_state *static_sampler_state,
 674                     struct lp_sampler_dynamic_state *dynamic_texture_state,
 675                     struct gallivm_state *gallivm,
 676                     const struct lp_sampler_params *params);
 677
 678
 679 void
 680 lp_build_coord_repeat_npot_linear(struct lp_build_sample_context *bld,
 681                                   LLVMValueRef coord_f,
 682                                   LLVMValueRef length_i,
 683                                   LLVMValueRef length_f,
 684                                   LLVMValueRef *coord0_i,
 685                                   LLVMValueRef *weight_f);
 686
 687
 688 void
 689 lp_build_size_query_soa(struct gallivm_state *gallivm,
 690                         const struct lp_static_texture_state *static_state,
 691                         struct lp_sampler_dynamic_state *dynamic_state,
 692                         const struct lp_sampler_size_query_params *params);
 693
 694 void
 695 lp_build_sample_nop(struct gallivm_state *gallivm,
 696                     struct lp_type type,
 697                     const LLVMValueRef *coords,
 698                     LLVMValueRef texel_out[4]);
 699
 700
 701 LLVMValueRef
 702 lp_build_minify(struct lp_build_context *bld,
 703                 LLVMValueRef base_size,
 704                 LLVMValueRef level,
 705                 boolean lod_scalar);
 706
 707 void
 708 lp_build_img_op_soa(const struct lp_static_texture_state *static_texture_state,
 709                     struct lp_sampler_dynamic_state *dynamic_state,
 710                     struct gallivm_state *gallivm,
 711                     const struct lp_img_params *params,
 712                     LLVMValueRef outdata[4]);
 713
 714 void
 715 lp_build_sample_array_init_soa(struct lp_build_sample_array_switch *switch_info,
 716                            struct gallivm_state *gallivm,
 717                            const struct lp_sampler_params *params,
 718                            LLVMValueRef idx,
 719                            unsigned base, unsigned range);
 720
 721 void
 722 lp_build_sample_array_case_soa(struct lp_build_sample_array_switch *switch_info,
 723                            int idx,
 724                            const struct lp_static_texture_state *static_texture_state,
 725                            const struct lp_static_sampler_state *static_sampler_state,
 726                            struct lp_sampler_dynamic_state *dynamic_texture_state);
 727
 728 void lp_build_sample_array_fini_soa(struct lp_build_sample_array_switch *switch_info);
 729 #ifdef __cplusplus
 730 }
 731 #endif
 732
 733 #endif /* LP_BLD_SAMPLE_H */