src/mesa/state_tracker/st_program.h

   1 /**************************************************************************
   2  *
   3  * Copyright 2003 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   * Authors:
  30   *   Keith Whitwell <keithw@vmware.com>
  31   */
  32
  33
  34 #ifndef ST_PROGRAM_H
  35 #define ST_PROGRAM_H
  36
  37 #include "main/mtypes.h"
  38 #include "main/atifragshader.h"
  39 #include "program/program.h"
  40 #include "pipe/p_state.h"
  41 #include "st_context.h"
  42 #include "st_texture.h"
  43 #include "st_glsl_to_tgsi.h"
  44
  45
  46 #ifdef __cplusplus
  47 extern "C" {
  48 #endif
  49
  50 #define ST_DOUBLE_ATTRIB_PLACEHOLDER 0xff
  51
  52 struct st_external_sampler_key
  53 {
  54    GLuint lower_nv12;             /**< bitmask of 2 plane YUV samplers */
  55    GLuint lower_iyuv;             /**< bitmask of 3 plane YUV samplers */
  56 };
  57
  58 static inline struct st_external_sampler_key
  59 st_get_external_sampler_key(struct st_context *st, struct gl_program *prog)
  60 {
  61    unsigned mask = prog->ExternalSamplersUsed;
  62    struct st_external_sampler_key key;
  63
  64    memset(&key, 0, sizeof(key));
  65
  66    while (unlikely(mask)) {
  67       unsigned unit = u_bit_scan(&mask);
  68       struct st_texture_object *stObj =
  69             st_get_texture_object(st->ctx, prog, unit);
  70
  71       switch (st_get_view_format(stObj)) {
  72       case PIPE_FORMAT_NV12:
  73          key.lower_nv12 |= (1 << unit);
  74          break;
  75       case PIPE_FORMAT_IYUV:
  76          key.lower_iyuv |= (1 << unit);
  77          break;
  78       default:
  79          break;
  80       }
  81    }
  82
  83    return key;
  84 }
  85
  86 /** Fragment program variant key */
  87 struct st_fp_variant_key
  88 {
  89    struct st_context *st;         /**< variants are per-context */
  90
  91    /** for glBitmap */
  92    GLuint bitmap:1;               /**< glBitmap variant? */
  93
  94    /** for glDrawPixels */
  95    GLuint drawpixels:1;           /**< glDrawPixels variant */
  96    GLuint scaleAndBias:1;         /**< glDrawPixels w/ scale and/or bias? */
  97    GLuint pixelMaps:1;            /**< glDrawPixels w/ pixel lookup map? */
  98
  99    /** for ARB_color_buffer_float */
 100    GLuint clamp_color:1;
 101
 102    /** for ARB_sample_shading */
 103    GLuint persample_shading:1;
 104
 105    /** needed for ATI_fragment_shader */
 106    GLuint fog:2;
 107
 108    /** needed for ATI_fragment_shader */
 109    char texture_targets[MAX_NUM_FRAGMENT_REGISTERS_ATI];
 110
 111    struct st_external_sampler_key external;
 112 };
 113
 114
 115 /**
 116  * Variant of a fragment program.
 117  */
 118 struct st_fp_variant
 119 {
 120    /** Parameters which generated this version of fragment program */
 121    struct st_fp_variant_key key;
 122
 123    /** Driver's compiled shader */
 124    void *driver_shader;
 125
 126    /** For glBitmap variants */
 127    uint bitmap_sampler;
 128
 129    /** For glDrawPixels variants */
 130    unsigned drawpix_sampler;
 131    unsigned pixelmap_sampler;
 132
 133    /** next in linked list */
 134    struct st_fp_variant *next;
 135 };
 136
 137
 138 /**
 139  * Derived from Mesa gl_program:
 140  */
 141 struct st_fragment_program
 142 {
 143    struct gl_program Base;
 144    struct pipe_shader_state tgsi;
 145    struct glsl_to_tgsi_visitor* glsl_to_tgsi;
 146    struct ati_fragment_shader *ati_fs;
 147    uint64_t affected_states; /**< ST_NEW_* flags to mark dirty when binding */
 148
 149    /* used when bypassing glsl_to_tgsi: */
 150    struct gl_shader_program *shader_program;
 151
 152    struct st_fp_variant *variants;
 153
 154    /** SHA1 hash of linked tgsi shader program, used for on-disk cache */
 155    unsigned char sha1[20];
 156 };
 157
 158
 159
 160 /** Vertex program variant key */
 161 struct st_vp_variant_key
 162 {
 163    struct st_context *st;          /**< variants are per-context */
 164    boolean passthrough_edgeflags;
 165
 166    /** for ARB_color_buffer_float */
 167    boolean clamp_color;
 168 };
 169
 170
 171 /**
 172  * This represents a vertex program, especially translated to match
 173  * the inputs of a particular fragment shader.
 174  */
 175 struct st_vp_variant
 176 {
 177    /* Parameters which generated this translated version of a vertex
 178     * shader:
 179     */
 180    struct st_vp_variant_key key;
 181
 182    /**
 183     * TGSI tokens (to later generate a 'draw' module shader for
 184     * selection/feedback/rasterpos)
 185     */
 186    struct pipe_shader_state tgsi;
 187
 188    /** Driver's compiled shader */
 189    void *driver_shader;
 190
 191    /** For using our private draw module (glRasterPos) */
 192    struct draw_vertex_shader *draw_shader;
 193
 194    /** Next in linked list */
 195    struct st_vp_variant *next;
 196
 197    /** similar to that in st_vertex_program, but with edgeflags info too */
 198    GLuint num_inputs;
 199 };
 200
 201
 202 /**
 203  * Derived from Mesa gl_program:
 204  */
 205 struct st_vertex_program
 206 {
 207    struct gl_program Base;  /**< The Mesa vertex program */
 208    struct pipe_shader_state tgsi;
 209    struct glsl_to_tgsi_visitor* glsl_to_tgsi;
 210    uint64_t affected_states; /**< ST_NEW_* flags to mark dirty when binding */
 211
 212    /* used when bypassing glsl_to_tgsi: */
 213    struct gl_shader_program *shader_program;
 214
 215    /** maps a Mesa VERT_ATTRIB_x to a packed TGSI input index */
 216    /** maps a TGSI input index back to a Mesa VERT_ATTRIB_x */
 217    ubyte index_to_input[PIPE_MAX_ATTRIBS];
 218    ubyte num_inputs;
 219
 220    /** Maps VARYING_SLOT_x to slot */
 221    ubyte result_to_output[VARYING_SLOT_MAX];
 222
 223    /** List of translated variants of this vertex program.
 224     */
 225    struct st_vp_variant *variants;
 226
 227    /** SHA1 hash of linked tgsi shader program, used for on-disk cache */
 228    unsigned char sha1[20];
 229 };
 230
 231
 232
 233 /** Key shared by all shaders except VP, FP */
 234 struct st_basic_variant_key
 235 {
 236    struct st_context *st;          /**< variants are per-context */
 237 };
 238
 239
 240 /**
 241  * Geometry program variant.
 242  */
 243 struct st_basic_variant
 244 {
 245    /* Parameters which generated this variant. */
 246    struct st_basic_variant_key key;
 247
 248    void *driver_shader;
 249
 250    struct st_basic_variant *next;
 251 };
 252
 253
 254 /**
 255  * Derived from Mesa gl_program:
 256  */
 257 struct st_geometry_program
 258 {
 259    struct gl_program Base;  /**< The Mesa geometry program */
 260    struct pipe_shader_state tgsi;
 261    struct glsl_to_tgsi_visitor* glsl_to_tgsi;
 262    uint64_t affected_states; /**< ST_NEW_* flags to mark dirty when binding */
 263
 264    struct st_basic_variant *variants;
 265
 266    /** SHA1 hash of linked tgsi shader program, used for on-disk cache */
 267    unsigned char sha1[20];
 268 };
 269
 270
 271 /**
 272  * Derived from Mesa gl_program:
 273  */
 274 struct st_tessctrl_program
 275 {
 276    struct gl_program Base;  /**< The Mesa tess ctrl program */
 277    struct pipe_shader_state tgsi;
 278    struct glsl_to_tgsi_visitor* glsl_to_tgsi;
 279    uint64_t affected_states; /**< ST_NEW_* flags to mark dirty when binding */
 280
 281    struct st_basic_variant *variants;
 282
 283    /** SHA1 hash of linked tgsi shader program, used for on-disk cache */
 284    unsigned char sha1[20];
 285 };
 286
 287
 288 /**
 289  * Derived from Mesa gl_program:
 290  */
 291 struct st_tesseval_program
 292 {
 293    struct gl_program Base;  /**< The Mesa tess eval program */
 294    struct pipe_shader_state tgsi;
 295    struct glsl_to_tgsi_visitor* glsl_to_tgsi;
 296    uint64_t affected_states; /**< ST_NEW_* flags to mark dirty when binding */
 297
 298    struct st_basic_variant *variants;
 299
 300    /** SHA1 hash of linked tgsi shader program, used for on-disk cache */
 301    unsigned char sha1[20];
 302 };
 303
 304
 305 /**
 306  * Derived from Mesa gl_program:
 307  */
 308 struct st_compute_program
 309 {
 310    struct gl_program Base;  /**< The Mesa compute program */
 311    struct pipe_compute_state tgsi;
 312    struct glsl_to_tgsi_visitor* glsl_to_tgsi;
 313    uint64_t affected_states; /**< ST_NEW_* flags to mark dirty when binding */
 314
 315    /* used when bypassing glsl_to_tgsi: */
 316    struct gl_shader_program *shader_program;
 317
 318    struct st_basic_variant *variants;
 319
 320    /** SHA1 hash of linked tgsi shader program, used for on-disk cache */
 321    unsigned char sha1[20];
 322 };
 323
 324
 325 static inline struct st_fragment_program *
 326 st_fragment_program( struct gl_program *fp )
 327 {
 328    return (struct st_fragment_program *)fp;
 329 }
 330
 331
 332 static inline struct st_vertex_program *
 333 st_vertex_program( struct gl_program *vp )
 334 {
 335    return (struct st_vertex_program *)vp;
 336 }
 337
 338 static inline struct st_geometry_program *
 339 st_geometry_program( struct gl_program *gp )
 340 {
 341    return (struct st_geometry_program *)gp;
 342 }
 343
 344 static inline struct st_tessctrl_program *
 345 st_tessctrl_program( struct gl_program *tcp )
 346 {
 347    return (struct st_tessctrl_program *)tcp;
 348 }
 349
 350 static inline struct st_tesseval_program *
 351 st_tesseval_program( struct gl_program *tep )
 352 {
 353    return (struct st_tesseval_program *)tep;
 354 }
 355
 356 static inline struct st_compute_program *
 357 st_compute_program( struct gl_program *cp )
 358 {
 359    return (struct st_compute_program *)cp;
 360 }
 361
 362 static inline void
 363 st_reference_vertprog(struct st_context *st,
 364                       struct st_vertex_program **ptr,
 365                       struct st_vertex_program *prog)
 366 {
 367    _mesa_reference_program(st->ctx,
 368                            (struct gl_program **) ptr,
 369                            (struct gl_program *) prog);
 370 }
 371
 372 static inline void
 373 st_reference_geomprog(struct st_context *st,
 374                       struct st_geometry_program **ptr,
 375                       struct st_geometry_program *prog)
 376 {
 377    _mesa_reference_program(st->ctx,
 378                            (struct gl_program **) ptr,
 379                            (struct gl_program *) prog);
 380 }
 381
 382 static inline void
 383 st_reference_fragprog(struct st_context *st,
 384                       struct st_fragment_program **ptr,
 385                       struct st_fragment_program *prog)
 386 {
 387    _mesa_reference_program(st->ctx,
 388                            (struct gl_program **) ptr,
 389                            (struct gl_program *) prog);
 390 }
 391
 392 static inline void
 393 st_reference_tesscprog(struct st_context *st,
 394                        struct st_tessctrl_program **ptr,
 395                        struct st_tessctrl_program *prog)
 396 {
 397    _mesa_reference_program(st->ctx,
 398                            (struct gl_program **) ptr,
 399                            (struct gl_program *) prog);
 400 }
 401
 402 static inline void
 403 st_reference_tesseprog(struct st_context *st,
 404                        struct st_tesseval_program **ptr,
 405                        struct st_tesseval_program *prog)
 406 {
 407    _mesa_reference_program(st->ctx,
 408                            (struct gl_program **) ptr,
 409                            (struct gl_program *) prog);
 410 }
 411
 412 static inline void
 413 st_reference_compprog(struct st_context *st,
 414                       struct st_compute_program **ptr,
 415                       struct st_compute_program *prog)
 416 {
 417    _mesa_reference_program(st->ctx,
 418                            (struct gl_program **) ptr,
 419                            (struct gl_program *) prog);
 420 }
 421
 422 /**
 423  * This defines mapping from Mesa VARYING_SLOTs to TGSI GENERIC slots.
 424  */
 425 static inline unsigned
 426 st_get_generic_varying_index(struct st_context *st, GLuint attr)
 427 {
 428    if (attr >= VARYING_SLOT_VAR0) {
 429       if (st->needs_texcoord_semantic)
 430          return attr - VARYING_SLOT_VAR0;
 431       else
 432          return 9 + (attr - VARYING_SLOT_VAR0);
 433    }
 434    if (attr == VARYING_SLOT_PNTC) {
 435       assert(!st->needs_texcoord_semantic);
 436       return 8;
 437    }
 438    if (attr >= VARYING_SLOT_TEX0 && attr <= VARYING_SLOT_TEX7) {
 439       assert(!st->needs_texcoord_semantic);
 440       return attr - VARYING_SLOT_TEX0;
 441    }
 442
 443    assert(0);
 444    return 0;
 445 }
 446
 447 extern void
 448 st_set_prog_affected_state_flags(struct gl_program *prog);
 449
 450 extern struct st_vp_variant *
 451 st_get_vp_variant(struct st_context *st,
 452                   struct st_vertex_program *stvp,
 453                   const struct st_vp_variant_key *key);
 454
 455
 456 extern struct st_fp_variant *
 457 st_get_fp_variant(struct st_context *st,
 458                   struct st_fragment_program *stfp,
 459                   const struct st_fp_variant_key *key);
 460
 461 extern struct st_basic_variant *
 462 st_get_cp_variant(struct st_context *st,
 463                   struct pipe_compute_state *tgsi,
 464                   struct st_basic_variant **variants);
 465
 466 extern struct st_basic_variant *
 467 st_get_basic_variant(struct st_context *st,
 468                      unsigned pipe_shader,
 469                      struct pipe_shader_state *tgsi,
 470                      struct st_basic_variant **variants);
 471
 472 extern void
 473 st_release_vp_variants( struct st_context *st,
 474                         struct st_vertex_program *stvp );
 475
 476 extern void
 477 st_release_fp_variants( struct st_context *st,
 478                         struct st_fragment_program *stfp );
 479
 480 extern void
 481 st_release_cp_variants(struct st_context *st,
 482                         struct st_compute_program *stcp);
 483
 484 extern void
 485 st_release_basic_variants(struct st_context *st, GLenum target,
 486                           struct st_basic_variant **variants,
 487                           struct pipe_shader_state *tgsi);
 488
 489 extern void
 490 st_destroy_program_variants(struct st_context *st);
 491
 492 extern bool
 493 st_translate_vertex_program(struct st_context *st,
 494                             struct st_vertex_program *stvp);
 495
 496 extern bool
 497 st_translate_fragment_program(struct st_context *st,
 498                               struct st_fragment_program *stfp);
 499
 500 extern bool
 501 st_translate_geometry_program(struct st_context *st,
 502                               struct st_geometry_program *stgp);
 503
 504 extern bool
 505 st_translate_tessctrl_program(struct st_context *st,
 506                               struct st_tessctrl_program *sttcp);
 507
 508 extern bool
 509 st_translate_tesseval_program(struct st_context *st,
 510                               struct st_tesseval_program *sttep);
 511
 512 extern bool
 513 st_translate_compute_program(struct st_context *st,
 514                              struct st_compute_program *stcp);
 515
 516 extern void
 517 st_print_current_vertex_program(void);
 518
 519 extern void
 520 st_precompile_shader_variant(struct st_context *st,
 521                              struct gl_program *prog);
 522
 523 #ifdef __cplusplus
 524 }
 525 #endif
 526
 527 #endif