src/gallium/auxiliary/draw/draw_llvm.h

   1 /**************************************************************************
   2  *
   3  * Copyright 2010 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 DRAW_LLVM_H
  29 #define DRAW_LLVM_H
  30
  31 #include "draw/draw_private.h"
  32
  33 #include "draw/draw_vs.h"
  34 #include "draw/draw_gs.h"
  35
  36 #include "gallivm/lp_bld_sample.h"
  37 #include "gallivm/lp_bld_limits.h"
  38
  39 #include "pipe/p_context.h"
  40 #include "util/u_simple_list.h"
  41
  42
  43 struct draw_llvm;
  44 struct llvm_vertex_shader;
  45 struct llvm_geometry_shader;
  46
  47 struct draw_jit_texture
  48 {
  49    uint32_t width;
  50    uint32_t height;
  51    uint32_t depth;
  52    uint32_t first_level;
  53    uint32_t last_level;
  54    const void *base;
  55    uint32_t row_stride[PIPE_MAX_TEXTURE_LEVELS];
  56    uint32_t img_stride[PIPE_MAX_TEXTURE_LEVELS];
  57    uint32_t mip_offsets[PIPE_MAX_TEXTURE_LEVELS];
  58 };
  59
  60
  61 struct draw_sampler_static_state
  62 {
  63    /*
  64     * These attributes are effectively interleaved for more sane key handling.
  65     * However, there might be lots of null space if the amount of samplers and
  66     * textures isn't the same.
  67     */
  68    struct lp_static_sampler_state sampler_state;
  69    struct lp_static_texture_state texture_state;
  70 };
  71
  72
  73 struct draw_jit_sampler
  74 {
  75    float min_lod;
  76    float max_lod;
  77    float lod_bias;
  78    float border_color[4];
  79 };
  80
  81
  82 enum {
  83    DRAW_JIT_TEXTURE_WIDTH = 0,
  84    DRAW_JIT_TEXTURE_HEIGHT,
  85    DRAW_JIT_TEXTURE_DEPTH,
  86    DRAW_JIT_TEXTURE_FIRST_LEVEL,
  87    DRAW_JIT_TEXTURE_LAST_LEVEL,
  88    DRAW_JIT_TEXTURE_BASE,
  89    DRAW_JIT_TEXTURE_ROW_STRIDE,
  90    DRAW_JIT_TEXTURE_IMG_STRIDE,
  91    DRAW_JIT_TEXTURE_MIP_OFFSETS,
  92    DRAW_JIT_TEXTURE_NUM_FIELDS  /* number of fields above */
  93 };
  94
  95
  96 enum {
  97    DRAW_JIT_SAMPLER_MIN_LOD,
  98    DRAW_JIT_SAMPLER_MAX_LOD,
  99    DRAW_JIT_SAMPLER_LOD_BIAS,
 100    DRAW_JIT_SAMPLER_BORDER_COLOR,
 101    DRAW_JIT_SAMPLER_NUM_FIELDS  /* number of fields above */
 102 };
 103
 104
 105 enum {
 106    DRAW_JIT_VERTEX_VERTEX_ID = 0,
 107    DRAW_JIT_VERTEX_CLIP,
 108    DRAW_JIT_VERTEX_PRE_CLIP_POS,
 109    DRAW_JIT_VERTEX_DATA
 110 };
 111
 112 /**
 113  * This structure is passed directly to the generated vertex shader.
 114  *
 115  * It contains the derived state.
 116  *
 117  * Changes here must be reflected in the draw_jit_context_* macros.
 118  * Changes to the ordering should be avoided.
 119  *
 120  * Only use types with a clear size and padding here, in particular prefer the
 121  * stdint.h types to the basic integer types.
 122  */
 123 struct draw_jit_context
 124 {
 125    const float *vs_constants[LP_MAX_TGSI_CONST_BUFFERS];
 126    float (*planes) [DRAW_TOTAL_CLIP_PLANES][4];
 127    float *viewport;
 128
 129    struct draw_jit_texture textures[PIPE_MAX_SHADER_SAMPLER_VIEWS];
 130    struct draw_jit_sampler samplers[PIPE_MAX_SAMPLERS];
 131 };
 132
 133 enum {
 134    DRAW_JIT_CTX_CONSTANTS   = 0,
 135    DRAW_JIT_CTX_PLANES      = 1,
 136    DRAW_JIT_CTX_VIEWPORT    = 2,
 137    DRAW_JIT_CTX_TEXTURES    = 3,
 138    DRAW_JIT_CTX_SAMPLERS    = 4,
 139    DRAW_JIT_CTX_NUM_FIELDS
 140 };
 141
 142 #define draw_jit_context_vs_constants(_gallivm, _ptr) \
 143    lp_build_struct_get_ptr(_gallivm, _ptr, DRAW_JIT_CTX_CONSTANTS, "vs_constants")
 144
 145 #define draw_jit_context_planes(_gallivm, _ptr) \
 146    lp_build_struct_get(_gallivm, _ptr, DRAW_JIT_CTX_PLANES, "planes")
 147
 148 #define draw_jit_context_viewport(_gallivm, _ptr) \
 149    lp_build_struct_get(_gallivm, _ptr, DRAW_JIT_CTX_VIEWPORT, "viewport")
 150
 151 #define draw_jit_context_textures(_gallivm, _ptr) \
 152    lp_build_struct_get_ptr(_gallivm, _ptr, DRAW_JIT_CTX_TEXTURES, "textures")
 153
 154 #define draw_jit_context_samplers(_gallivm, _ptr) \
 155    lp_build_struct_get_ptr(_gallivm, _ptr, DRAW_JIT_CTX_SAMPLERS, "samplers")
 156
 157 #define draw_jit_header_id(_gallivm, _ptr)              \
 158    lp_build_struct_get_ptr(_gallivm, _ptr, DRAW_JIT_VERTEX_VERTEX_ID, "id")
 159
 160 #define draw_jit_header_clip(_gallivm, _ptr) \
 161    lp_build_struct_get_ptr(_gallivm, _ptr, DRAW_JIT_VERTEX_CLIP, "clip")
 162
 163 #define draw_jit_header_pre_clip_pos(_gallivm, _ptr) \
 164    lp_build_struct_get_ptr(_gallivm, _ptr, DRAW_JIT_VERTEX_PRE_CLIP_POS, "pre_clip_pos")
 165
 166 #define draw_jit_header_data(_gallivm, _ptr)            \
 167    lp_build_struct_get_ptr(_gallivm, _ptr, DRAW_JIT_VERTEX_DATA, "data")
 168
 169
 170 #define draw_jit_vbuffer_stride(_gallivm, _ptr)         \
 171    lp_build_struct_get(_gallivm, _ptr, 0, "stride")
 172
 173 #define draw_jit_vbuffer_offset(_gallivm, _ptr)         \
 174    lp_build_struct_get(_gallivm, _ptr, 1, "buffer_offset")
 175
 176
 177 /**
 178  * This structure is passed directly to the generated geometry shader.
 179  *
 180  * It contains the derived state.
 181  *
 182  * Changes here must be reflected in the draw_gs_jit_context_* macros.
 183  * Changes to the ordering should be avoided.
 184  *
 185  * Only use types with a clear size and padding here, in particular prefer the
 186  * stdint.h types to the basic integer types.
 187  */
 188 struct draw_gs_jit_context
 189 {
 190    const float *constants[LP_MAX_TGSI_CONST_BUFFERS];
 191    float (*planes) [DRAW_TOTAL_CLIP_PLANES][4];
 192    float *viewport;
 193
 194    /* There two need to be exactly at DRAW_JIT_CTX_TEXTURES and
 195     * DRAW_JIT_CTX_SAMPLERS positions in the struct */
 196    struct draw_jit_texture textures[PIPE_MAX_SHADER_SAMPLER_VIEWS];
 197    struct draw_jit_sampler samplers[PIPE_MAX_SAMPLERS];
 198
 199    int **prim_lengths;
 200    int *emitted_vertices;
 201    int *emitted_prims;
 202 };
 203
 204 enum {
 205    DRAW_GS_JIT_CTX_CONSTANTS = 0,
 206    DRAW_GS_JIT_CTX_PLANES = 1,
 207    DRAW_GS_JIT_CTX_VIEWPORT = 2,
 208    /* Textures and samples are reserved for DRAW_JIT_CTX_TEXTURES
 209     * and DRAW_JIT_CTX_SAMPLERS, because they both need
 210     * to be at exactly the same locations as they are in the
 211     * VS ctx structure for sampling to work. */
 212    DRAW_GS_JIT_CTX_TEXTURES = DRAW_JIT_CTX_TEXTURES,
 213    DRAW_GS_JIT_CTX_SAMPLERS = DRAW_JIT_CTX_SAMPLERS,
 214    DRAW_GS_JIT_CTX_PRIM_LENGTHS = 5,
 215    DRAW_GS_JIT_CTX_EMITTED_VERTICES = 6,
 216    DRAW_GS_JIT_CTX_EMITTED_PRIMS = 7,
 217    DRAW_GS_JIT_CTX_NUM_FIELDS = 8
 218 };
 219
 220 #define draw_gs_jit_context_constants(_gallivm, _ptr) \
 221    lp_build_struct_get_ptr(_gallivm, _ptr, DRAW_GS_JIT_CTX_CONSTANTS, "constants")
 222
 223 #define draw_gs_jit_context_planes(_gallivm, _ptr) \
 224    lp_build_struct_get(_gallivm, _ptr, DRAW_GS_JIT_CTX_PLANES, "planes")
 225
 226 #define draw_gs_jit_context_viewport(_gallivm, _ptr) \
 227    lp_build_struct_get(_gallivm, _ptr, DRAW_GS_JIT_CTX_VIEWPORT, "viewport")
 228
 229 #define draw_gs_jit_context_textures(_gallivm, _ptr) \
 230    lp_build_struct_get_ptr(_gallivm, _ptr, DRAW_GS_JIT_CTX_TEXTURES, "textures")
 231
 232 #define draw_gs_jit_context_samplers(_gallivm, _ptr) \
 233    lp_build_struct_get_ptr(_gallivm, _ptr, DRAW_GS_JIT_CTX_SAMPLERS, "samplers")
 234
 235 #define draw_gs_jit_prim_lengths(_gallivm, _ptr) \
 236    lp_build_struct_get(_gallivm, _ptr, DRAW_GS_JIT_CTX_PRIM_LENGTHS, "prim_lengths")
 237
 238 #define draw_gs_jit_emitted_vertices(_gallivm, _ptr) \
 239    lp_build_struct_get(_gallivm, _ptr, DRAW_GS_JIT_CTX_EMITTED_VERTICES, "emitted_vertices")
 240
 241 #define draw_gs_jit_emitted_prims(_gallivm, _ptr) \
 242    lp_build_struct_get(_gallivm, _ptr, DRAW_GS_JIT_CTX_EMITTED_PRIMS, "emitted_prims")
 243
 244
 245
 246 typedef int
 247 (*draw_jit_vert_func)(struct draw_jit_context *context,
 248                       struct vertex_header *io,
 249                       const char *vbuffers[PIPE_MAX_ATTRIBS],
 250                       unsigned start,
 251                       unsigned count,
 252                       unsigned stride,
 253                       struct pipe_vertex_buffer *vertex_buffers,
 254                       unsigned instance_id);
 255
 256
 257 typedef int
 258 (*draw_jit_vert_func_elts)(struct draw_jit_context *context,
 259                            struct vertex_header *io,
 260                            const char *vbuffers[PIPE_MAX_ATTRIBS],
 261                            const unsigned *fetch_elts,
 262                            unsigned fetch_count,
 263                            unsigned stride,
 264                            struct pipe_vertex_buffer *vertex_buffers,
 265                            unsigned instance_id);
 266
 267
 268 typedef int
 269 (*draw_gs_jit_func)(struct draw_gs_jit_context *context,
 270                     float inputs[6][PIPE_MAX_SHADER_INPUTS][TGSI_NUM_CHANNELS][TGSI_NUM_CHANNELS],
 271                     struct vertex_header *output,
 272                     unsigned num_prims,
 273                     unsigned instance_id,
 274                     int *prim_ids);
 275
 276 struct draw_llvm_variant_key
 277 {
 278    unsigned nr_vertex_elements:8;
 279    unsigned nr_samplers:8;
 280    unsigned nr_sampler_views:8;
 281    unsigned clamp_vertex_color:1;
 282    unsigned clip_xy:1;
 283    unsigned clip_z:1;
 284    unsigned clip_user:1;
 285    unsigned clip_halfz:1;
 286    unsigned bypass_viewport:1;
 287    unsigned need_edgeflags:1;
 288    unsigned has_gs:1;
 289    /*
 290     * it is important there are no holes in this struct
 291     * (and all padding gets zeroed).
 292     */
 293    unsigned ucp_enable:PIPE_MAX_CLIP_PLANES;
 294    unsigned pad1:32-PIPE_MAX_CLIP_PLANES;
 295
 296    /* Variable number of vertex elements:
 297     */
 298    struct pipe_vertex_element vertex_element[1];
 299
 300    /* Followed by variable number of samplers:
 301     */
 302 /*   struct draw_sampler_static_state sampler; */
 303 };
 304
 305 struct draw_gs_llvm_variant_key
 306 {
 307    unsigned nr_samplers:8;
 308    unsigned nr_sampler_views:8;
 309
 310    struct draw_sampler_static_state samplers[1];
 311 };
 312
 313 #define DRAW_LLVM_MAX_VARIANT_KEY_SIZE \
 314    (sizeof(struct draw_llvm_variant_key) +      \
 315     PIPE_MAX_SHADER_SAMPLER_VIEWS * sizeof(struct draw_sampler_static_state) +  \
 316     (PIPE_MAX_ATTRIBS-1) * sizeof(struct pipe_vertex_element))
 317
 318 #define DRAW_GS_LLVM_MAX_VARIANT_KEY_SIZE \
 319    (sizeof(struct draw_gs_llvm_variant_key) +   \
 320     PIPE_MAX_SHADER_SAMPLER_VIEWS * sizeof(struct draw_sampler_static_state))
 321
 322
 323 static INLINE size_t
 324 draw_llvm_variant_key_size(unsigned nr_vertex_elements,
 325                            unsigned nr_samplers)
 326 {
 327    return (sizeof(struct draw_llvm_variant_key) +
 328            nr_samplers * sizeof(struct draw_sampler_static_state) +
 329            (nr_vertex_elements - 1) * sizeof(struct pipe_vertex_element));
 330 }
 331
 332
 333 static INLINE size_t
 334 draw_gs_llvm_variant_key_size(unsigned nr_samplers)
 335 {
 336    return (sizeof(struct draw_gs_llvm_variant_key) +
 337            (nr_samplers - 1) * sizeof(struct draw_sampler_static_state));
 338 }
 339
 340
 341 static INLINE struct draw_sampler_static_state *
 342 draw_llvm_variant_key_samplers(struct draw_llvm_variant_key *key)
 343 {
 344    return (struct draw_sampler_static_state *)
 345       &key->vertex_element[key->nr_vertex_elements];
 346 }
 347
 348
 349 struct draw_llvm_variant_list_item
 350 {
 351    struct draw_llvm_variant *base;
 352    struct draw_llvm_variant_list_item *next, *prev;
 353 };
 354
 355 struct draw_gs_llvm_variant_list_item
 356 {
 357    struct draw_gs_llvm_variant *base;
 358    struct draw_gs_llvm_variant_list_item *next, *prev;
 359 };
 360
 361
 362 struct draw_llvm_variant
 363 {
 364    struct gallivm_state *gallivm;
 365
 366    /* LLVM JIT builder types */
 367    LLVMTypeRef context_ptr_type;
 368    LLVMTypeRef buffer_ptr_type;
 369    LLVMTypeRef vb_ptr_type;
 370    LLVMTypeRef vertex_header_ptr_type;
 371
 372    LLVMValueRef function;
 373    LLVMValueRef function_elts;
 374    draw_jit_vert_func jit_func;
 375    draw_jit_vert_func_elts jit_func_elts;
 376
 377    struct llvm_vertex_shader *shader;
 378
 379    struct draw_llvm *llvm;
 380    struct draw_llvm_variant_list_item list_item_global;
 381    struct draw_llvm_variant_list_item list_item_local;
 382
 383    /* key is variable-sized, must be last */
 384    struct draw_llvm_variant_key key;
 385 };
 386
 387
 388 struct draw_gs_llvm_variant
 389 {
 390    struct gallivm_state *gallivm;
 391
 392    /* LLVM JIT builder types */
 393    LLVMTypeRef context_ptr_type;
 394    LLVMTypeRef vertex_header_ptr_type;
 395    LLVMTypeRef input_array_type;
 396
 397    LLVMValueRef context_ptr;
 398    LLVMValueRef io_ptr;
 399    LLVMValueRef num_prims;
 400    LLVMValueRef function;
 401    draw_gs_jit_func jit_func;
 402
 403    struct llvm_geometry_shader *shader;
 404
 405    struct draw_llvm *llvm;
 406    struct draw_gs_llvm_variant_list_item list_item_global;
 407    struct draw_gs_llvm_variant_list_item list_item_local;
 408
 409    /* key is variable-sized, must be last */
 410    struct draw_gs_llvm_variant_key key;
 411 };
 412
 413 struct llvm_vertex_shader {
 414    struct draw_vertex_shader base;
 415
 416    unsigned variant_key_size;
 417    struct draw_llvm_variant_list_item variants;
 418    unsigned variants_created;
 419    unsigned variants_cached;
 420 };
 421
 422 struct llvm_geometry_shader {
 423    struct draw_geometry_shader base;
 424
 425    unsigned variant_key_size;
 426    struct draw_gs_llvm_variant_list_item variants;
 427    unsigned variants_created;
 428    unsigned variants_cached;
 429 };
 430
 431
 432 struct draw_llvm {
 433    struct draw_context *draw;
 434
 435    struct draw_jit_context jit_context;
 436    struct draw_gs_jit_context gs_jit_context;
 437
 438    struct draw_llvm_variant_list_item vs_variants_list;
 439    int nr_variants;
 440
 441    struct draw_gs_llvm_variant_list_item gs_variants_list;
 442    int nr_gs_variants;
 443 };
 444
 445
 446 static INLINE struct llvm_vertex_shader *
 447 llvm_vertex_shader(struct draw_vertex_shader *vs)
 448 {
 449    return (struct llvm_vertex_shader *)vs;
 450 }
 451
 452 static INLINE struct llvm_geometry_shader *
 453 llvm_geometry_shader(struct draw_geometry_shader *gs)
 454 {
 455    return (struct llvm_geometry_shader *)gs;
 456 }
 457
 458
 459
 460
 461 struct draw_llvm *
 462 draw_llvm_create(struct draw_context *draw);
 463
 464 void
 465 draw_llvm_destroy(struct draw_llvm *llvm);
 466
 467 struct draw_llvm_variant *
 468 draw_llvm_create_variant(struct draw_llvm *llvm,
 469                          unsigned num_vertex_header_attribs,
 470                          const struct draw_llvm_variant_key *key);
 471
 472 void
 473 draw_llvm_destroy_variant(struct draw_llvm_variant *variant);
 474
 475 struct draw_llvm_variant_key *
 476 draw_llvm_make_variant_key(struct draw_llvm *llvm, char *store);
 477
 478 void
 479 draw_llvm_dump_variant_key(struct draw_llvm_variant_key *key);
 480
 481
 482 struct draw_gs_llvm_variant *
 483 draw_gs_llvm_create_variant(struct draw_llvm *llvm,
 484                             unsigned num_vertex_header_attribs,
 485                             const struct draw_gs_llvm_variant_key *key);
 486
 487 void
 488 draw_gs_llvm_destroy_variant(struct draw_gs_llvm_variant *variant);
 489
 490 struct draw_gs_llvm_variant_key *
 491 draw_gs_llvm_make_variant_key(struct draw_llvm *llvm, char *store);
 492
 493 void
 494 draw_gs_llvm_dump_variant_key(struct draw_gs_llvm_variant_key *key);
 495
 496 struct lp_build_sampler_soa *
 497 draw_llvm_sampler_soa_create(const struct draw_sampler_static_state *static_state,
 498                              LLVMValueRef context_ptr);
 499
 500 void
 501 draw_llvm_set_sampler_state(struct draw_context *draw, unsigned shader_stage);
 502
 503 void
 504 draw_llvm_set_mapped_texture(struct draw_context *draw,
 505                              unsigned shader_stage,
 506                              unsigned sview_idx,
 507                              uint32_t width, uint32_t height, uint32_t depth,
 508                              uint32_t first_level, uint32_t last_level,
 509                              const void *base_ptr,
 510                              uint32_t row_stride[PIPE_MAX_TEXTURE_LEVELS],
 511                              uint32_t img_stride[PIPE_MAX_TEXTURE_LEVELS],
 512                              uint32_t mip_offsets[PIPE_MAX_TEXTURE_LEVELS]);
 513
 514 #endif