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