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 0xffffffff
  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_fragment_program:
 140  */
 141 struct st_fragment_program
 142 {
 143    struct gl_fragment_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
 155
 156
 157 /** Vertex program variant key */
 158 struct st_vp_variant_key
 159 {
 160    struct st_context *st;          /**< variants are per-context */
 161    boolean passthrough_edgeflags;
 162
 163    /** for ARB_color_buffer_float */
 164    boolean clamp_color;
 165 };
 166
 167
 168 /**
 169  * This represents a vertex program, especially translated to match
 170  * the inputs of a particular fragment shader.
 171  */
 172 struct st_vp_variant
 173 {
 174    /* Parameters which generated this translated version of a vertex
 175     * shader:
 176     */
 177    struct st_vp_variant_key key;
 178
 179    /**
 180     * TGSI tokens (to later generate a 'draw' module shader for
 181     * selection/feedback/rasterpos)
 182     */
 183    struct pipe_shader_state tgsi;
 184
 185    /** Driver's compiled shader */
 186    void *driver_shader;
 187
 188    /** For using our private draw module (glRasterPos) */
 189    struct draw_vertex_shader *draw_shader;
 190
 191    /** Next in linked list */
 192    struct st_vp_variant *next;
 193
 194    /** similar to that in st_vertex_program, but with edgeflags info too */
 195    GLuint num_inputs;
 196 };
 197
 198
 199 /**
 200  * Derived from Mesa gl_fragment_program:
 201  */
 202 struct st_vertex_program
 203 {
 204    struct gl_vertex_program Base;  /**< The Mesa vertex program */
 205    struct pipe_shader_state tgsi;
 206    struct glsl_to_tgsi_visitor* glsl_to_tgsi;
 207    uint64_t affected_states; /**< ST_NEW_* flags to mark dirty when binding */
 208
 209    /* used when bypassing glsl_to_tgsi: */
 210    struct gl_shader_program *shader_program;
 211
 212    /** maps a Mesa VERT_ATTRIB_x to a packed TGSI input index */
 213    /** maps a TGSI input index back to a Mesa VERT_ATTRIB_x */
 214    GLuint index_to_input[PIPE_MAX_SHADER_INPUTS];
 215    GLuint num_inputs;
 216
 217    /** Maps VARYING_SLOT_x to slot */
 218    GLuint result_to_output[VARYING_SLOT_MAX];
 219
 220    /** List of translated variants of this vertex program.
 221     */
 222    struct st_vp_variant *variants;
 223 };
 224
 225
 226
 227 /** Key shared by all shaders except VP, FP */
 228 struct st_basic_variant_key
 229 {
 230    struct st_context *st;          /**< variants are per-context */
 231 };
 232
 233
 234 /**
 235  * Geometry program variant.
 236  */
 237 struct st_basic_variant
 238 {
 239    /* Parameters which generated this variant. */
 240    struct st_basic_variant_key key;
 241
 242    void *driver_shader;
 243
 244    struct st_basic_variant *next;
 245 };
 246
 247
 248 /**
 249  * Derived from Mesa gl_program:
 250  */
 251 struct st_geometry_program
 252 {
 253    struct gl_program Base;  /**< The Mesa geometry program */
 254    struct pipe_shader_state tgsi;
 255    struct glsl_to_tgsi_visitor* glsl_to_tgsi;
 256    uint64_t affected_states; /**< ST_NEW_* flags to mark dirty when binding */
 257
 258    struct st_basic_variant *variants;
 259 };
 260
 261
 262 /**
 263  * Derived from Mesa gl_program:
 264  */
 265 struct st_tessctrl_program
 266 {
 267    struct gl_program Base;  /**< The Mesa tess ctrl program */
 268    struct pipe_shader_state tgsi;
 269    struct glsl_to_tgsi_visitor* glsl_to_tgsi;
 270    uint64_t affected_states; /**< ST_NEW_* flags to mark dirty when binding */
 271
 272    struct st_basic_variant *variants;
 273 };
 274
 275
 276 /**
 277  * Derived from Mesa gl_program:
 278  */
 279 struct st_tesseval_program
 280 {
 281    struct gl_program Base;  /**< The Mesa tess eval program */
 282    struct pipe_shader_state tgsi;
 283    struct glsl_to_tgsi_visitor* glsl_to_tgsi;
 284    uint64_t affected_states; /**< ST_NEW_* flags to mark dirty when binding */
 285
 286    struct st_basic_variant *variants;
 287 };
 288
 289
 290 /**
 291  * Derived from Mesa gl_compute_program:
 292  */
 293 struct st_compute_program
 294 {
 295    struct gl_compute_program Base;  /**< The Mesa compute program */
 296    struct pipe_compute_state tgsi;
 297    struct glsl_to_tgsi_visitor* glsl_to_tgsi;
 298    uint64_t affected_states; /**< ST_NEW_* flags to mark dirty when binding */
 299
 300    struct st_basic_variant *variants;
 301 };
 302
 303
 304 static inline struct st_fragment_program *
 305 st_fragment_program( struct gl_fragment_program *fp )
 306 {
 307    return (struct st_fragment_program *)fp;
 308 }
 309
 310
 311 static inline struct st_vertex_program *
 312 st_vertex_program( struct gl_vertex_program *vp )
 313 {
 314    return (struct st_vertex_program *)vp;
 315 }
 316
 317 static inline struct st_geometry_program *
 318 st_geometry_program( struct gl_program *gp )
 319 {
 320    return (struct st_geometry_program *)gp;
 321 }
 322
 323 static inline struct st_tessctrl_program *
 324 st_tessctrl_program( struct gl_program *tcp )
 325 {
 326    return (struct st_tessctrl_program *)tcp;
 327 }
 328
 329 static inline struct st_tesseval_program *
 330 st_tesseval_program( struct gl_program *tep )
 331 {
 332    return (struct st_tesseval_program *)tep;
 333 }
 334
 335 static inline struct st_compute_program *
 336 st_compute_program( struct gl_compute_program *cp )
 337 {
 338    return (struct st_compute_program *)cp;
 339 }
 340
 341 static inline void
 342 st_reference_vertprog(struct st_context *st,
 343                       struct st_vertex_program **ptr,
 344                       struct st_vertex_program *prog)
 345 {
 346    _mesa_reference_program(st->ctx,
 347                            (struct gl_program **) ptr,
 348                            (struct gl_program *) prog);
 349 }
 350
 351 static inline void
 352 st_reference_geomprog(struct st_context *st,
 353                       struct st_geometry_program **ptr,
 354                       struct st_geometry_program *prog)
 355 {
 356    _mesa_reference_program(st->ctx,
 357                            (struct gl_program **) ptr,
 358                            (struct gl_program *) prog);
 359 }
 360
 361 static inline void
 362 st_reference_fragprog(struct st_context *st,
 363                       struct st_fragment_program **ptr,
 364                       struct st_fragment_program *prog)
 365 {
 366    _mesa_reference_program(st->ctx,
 367                            (struct gl_program **) ptr,
 368                            (struct gl_program *) prog);
 369 }
 370
 371 static inline void
 372 st_reference_tesscprog(struct st_context *st,
 373                        struct st_tessctrl_program **ptr,
 374                        struct st_tessctrl_program *prog)
 375 {
 376    _mesa_reference_program(st->ctx,
 377                            (struct gl_program **) ptr,
 378                            (struct gl_program *) prog);
 379 }
 380
 381 static inline void
 382 st_reference_tesseprog(struct st_context *st,
 383                        struct st_tesseval_program **ptr,
 384                        struct st_tesseval_program *prog)
 385 {
 386    _mesa_reference_program(st->ctx,
 387                            (struct gl_program **) ptr,
 388                            (struct gl_program *) prog);
 389 }
 390
 391 static inline void
 392 st_reference_compprog(struct st_context *st,
 393                       struct st_compute_program **ptr,
 394                       struct st_compute_program *prog)
 395 {
 396    _mesa_reference_program(st->ctx,
 397                            (struct gl_program **) ptr,
 398                            (struct gl_program *) prog);
 399 }
 400
 401 /**
 402  * This defines mapping from Mesa VARYING_SLOTs to TGSI GENERIC slots.
 403  */
 404 static inline unsigned
 405 st_get_generic_varying_index(struct st_context *st, GLuint attr)
 406 {
 407    if (attr >= VARYING_SLOT_VAR0) {
 408       if (st->needs_texcoord_semantic)
 409          return attr - VARYING_SLOT_VAR0;
 410       else
 411          return 9 + (attr - VARYING_SLOT_VAR0);
 412    }
 413    if (attr == VARYING_SLOT_PNTC) {
 414       assert(!st->needs_texcoord_semantic);
 415       return 8;
 416    }
 417    if (attr >= VARYING_SLOT_TEX0 && attr <= VARYING_SLOT_TEX7) {
 418       assert(!st->needs_texcoord_semantic);
 419       return attr - VARYING_SLOT_TEX0;
 420    }
 421
 422    assert(0);
 423    return 0;
 424 }
 425
 426
 427 extern struct st_vp_variant *
 428 st_get_vp_variant(struct st_context *st,
 429                   struct st_vertex_program *stvp,
 430                   const struct st_vp_variant_key *key);
 431
 432
 433 extern struct st_fp_variant *
 434 st_get_fp_variant(struct st_context *st,
 435                   struct st_fragment_program *stfp,
 436                   const struct st_fp_variant_key *key);
 437
 438 extern struct st_basic_variant *
 439 st_get_cp_variant(struct st_context *st,
 440                   struct pipe_compute_state *tgsi,
 441                   struct st_basic_variant **variants);
 442
 443 extern struct st_basic_variant *
 444 st_get_basic_variant(struct st_context *st,
 445                      unsigned pipe_shader,
 446                      struct pipe_shader_state *tgsi,
 447                      struct st_basic_variant **variants);
 448
 449 extern void
 450 st_release_vp_variants( struct st_context *st,
 451                         struct st_vertex_program *stvp );
 452
 453 extern void
 454 st_release_fp_variants( struct st_context *st,
 455                         struct st_fragment_program *stfp );
 456
 457 extern void
 458 st_release_cp_variants(struct st_context *st,
 459                         struct st_compute_program *stcp);
 460
 461 extern void
 462 st_release_basic_variants(struct st_context *st, GLenum target,
 463                           struct st_basic_variant **variants,
 464                           struct pipe_shader_state *tgsi);
 465
 466 extern void
 467 st_destroy_program_variants(struct st_context *st);
 468
 469 extern bool
 470 st_translate_vertex_program(struct st_context *st,
 471                             struct st_vertex_program *stvp);
 472
 473 extern bool
 474 st_translate_fragment_program(struct st_context *st,
 475                               struct st_fragment_program *stfp);
 476
 477 extern bool
 478 st_translate_geometry_program(struct st_context *st,
 479                               struct st_geometry_program *stgp);
 480
 481 extern bool
 482 st_translate_tessctrl_program(struct st_context *st,
 483                               struct st_tessctrl_program *sttcp);
 484
 485 extern bool
 486 st_translate_tesseval_program(struct st_context *st,
 487                               struct st_tesseval_program *sttep);
 488
 489 extern bool
 490 st_translate_compute_program(struct st_context *st,
 491                              struct st_compute_program *stcp);
 492
 493 extern void
 494 st_print_current_vertex_program(void);
 495
 496 extern void
 497 st_precompile_shader_variant(struct st_context *st,
 498                              struct gl_program *prog);
 499
 500 #ifdef __cplusplus
 501 }
 502 #endif
 503
 504 #endif