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 "program/program.h"
  39 #include "pipe/p_state.h"
  40 #include "st_context.h"
  41 #include "st_glsl_to_tgsi.h"
  42
  43
  44 #ifdef __cplusplus
  45 extern "C" {
  46 #endif
  47
  48 #define ST_DOUBLE_ATTRIB_PLACEHOLDER 0xffffffff
  49
  50 /** Fragment program variant key */
  51 struct st_fp_variant_key
  52 {
  53    struct st_context *st;         /**< variants are per-context */
  54
  55    /** for glBitmap */
  56    GLuint bitmap:1;               /**< glBitmap variant? */
  57
  58    /** for glDrawPixels */
  59    GLuint drawpixels:1;           /**< glDrawPixels variant */
  60    GLuint scaleAndBias:1;         /**< glDrawPixels w/ scale and/or bias? */
  61    GLuint pixelMaps:1;            /**< glDrawPixels w/ pixel lookup map? */
  62
  63    /** for ARB_color_buffer_float */
  64    GLuint clamp_color:1;
  65
  66    /** for ARB_sample_shading */
  67    GLuint persample_shading:1;
  68 };
  69
  70
  71 /**
  72  * Variant of a fragment program.
  73  */
  74 struct st_fp_variant
  75 {
  76    /** Parameters which generated this version of fragment program */
  77    struct st_fp_variant_key key;
  78
  79    struct pipe_shader_state tgsi;
  80
  81    /** Driver's compiled shader */
  82    void *driver_shader;
  83
  84    /** For glBitmap variants */
  85    struct gl_program_parameter_list *parameters;
  86    uint bitmap_sampler;
  87
  88    /** next in linked list */
  89    struct st_fp_variant *next;
  90 };
  91
  92
  93 /**
  94  * Derived from Mesa gl_fragment_program:
  95  */
  96 struct st_fragment_program
  97 {
  98    struct gl_fragment_program Base;
  99    struct glsl_to_tgsi_visitor* glsl_to_tgsi;
 100
 101    struct st_fp_variant *variants;
 102 };
 103
 104
 105
 106 /** Vertex program variant key */
 107 struct st_vp_variant_key
 108 {
 109    struct st_context *st;          /**< variants are per-context */
 110    boolean passthrough_edgeflags;
 111
 112    /** for ARB_color_buffer_float */
 113    boolean clamp_color;
 114 };
 115
 116
 117 /**
 118  * This represents a vertex program, especially translated to match
 119  * the inputs of a particular fragment shader.
 120  */
 121 struct st_vp_variant
 122 {
 123    /* Parameters which generated this translated version of a vertex
 124     * shader:
 125     */
 126    struct st_vp_variant_key key;
 127
 128    /**
 129     * TGSI tokens (to later generate a 'draw' module shader for
 130     * selection/feedback/rasterpos)
 131     */
 132    struct pipe_shader_state tgsi;
 133
 134    /** Driver's compiled shader */
 135    void *driver_shader;
 136
 137    /** For using our private draw module (glRasterPos) */
 138    struct draw_vertex_shader *draw_shader;
 139
 140    /** Next in linked list */
 141    struct st_vp_variant *next;
 142
 143    /** similar to that in st_vertex_program, but with edgeflags info too */
 144    GLuint num_inputs;
 145 };
 146
 147
 148 /**
 149  * Derived from Mesa gl_fragment_program:
 150  */
 151 struct st_vertex_program
 152 {
 153    struct gl_vertex_program Base;  /**< The Mesa vertex program */
 154    struct glsl_to_tgsi_visitor* glsl_to_tgsi;
 155
 156    /** maps a Mesa VERT_ATTRIB_x to a packed TGSI input index */
 157    /** maps a TGSI input index back to a Mesa VERT_ATTRIB_x */
 158    GLuint index_to_input[PIPE_MAX_SHADER_INPUTS];
 159    GLuint num_inputs;
 160
 161    /** Maps VARYING_SLOT_x to slot */
 162    GLuint result_to_output[VARYING_SLOT_MAX];
 163
 164    /** List of translated variants of this vertex program.
 165     */
 166    struct st_vp_variant *variants;
 167 };
 168
 169
 170
 171 /** Geometry program variant key */
 172 struct st_gp_variant_key
 173 {
 174    struct st_context *st;          /**< variants are per-context */
 175    /* no other fields yet */
 176 };
 177
 178
 179 /**
 180  * Geometry program variant.
 181  */
 182 struct st_gp_variant
 183 {
 184    /* Parameters which generated this variant. */
 185    struct st_gp_variant_key key;
 186
 187    void *driver_shader;
 188
 189    struct st_gp_variant *next;
 190 };
 191
 192
 193 /**
 194  * Derived from Mesa gl_geometry_program:
 195  */
 196 struct st_geometry_program
 197 {
 198    struct gl_geometry_program Base;  /**< The Mesa geometry program */
 199    struct glsl_to_tgsi_visitor* glsl_to_tgsi;
 200
 201    struct st_gp_variant *variants;
 202 };
 203
 204
 205
 206 /** Tessellation control program variant key */
 207 struct st_tcp_variant_key
 208 {
 209    struct st_context *st;          /**< variants are per-context */
 210    /* no other fields yet */
 211 };
 212
 213
 214 /**
 215  * Tessellation control program variant.
 216  */
 217 struct st_tcp_variant
 218 {
 219    /* Parameters which generated this variant. */
 220    struct st_tcp_variant_key key;
 221
 222    void *driver_shader;
 223
 224    struct st_tcp_variant *next;
 225 };
 226
 227
 228 /**
 229  * Derived from Mesa gl_tess_ctrl_program:
 230  */
 231 struct st_tessctrl_program
 232 {
 233    struct gl_tess_ctrl_program Base;  /**< The Mesa tess ctrl program */
 234    struct glsl_to_tgsi_visitor* glsl_to_tgsi;
 235
 236    struct st_tcp_variant *variants;
 237 };
 238
 239
 240
 241 /** Tessellation evaluation program variant key */
 242 struct st_tep_variant_key
 243 {
 244    struct st_context *st;          /**< variants are per-context */
 245    /* no other fields yet */
 246 };
 247
 248
 249 /**
 250  * Tessellation evaluation program variant.
 251  */
 252 struct st_tep_variant
 253 {
 254    /* Parameters which generated this variant. */
 255    struct st_tep_variant_key key;
 256
 257    void *driver_shader;
 258
 259    struct st_tep_variant *next;
 260 };
 261
 262
 263 /**
 264  * Derived from Mesa gl_tess_eval_program:
 265  */
 266 struct st_tesseval_program
 267 {
 268    struct gl_tess_eval_program Base;  /**< The Mesa tess eval program */
 269    struct glsl_to_tgsi_visitor* glsl_to_tgsi;
 270
 271    struct st_tep_variant *variants;
 272 };
 273
 274
 275
 276 static inline struct st_fragment_program *
 277 st_fragment_program( struct gl_fragment_program *fp )
 278 {
 279    return (struct st_fragment_program *)fp;
 280 }
 281
 282
 283 static inline struct st_vertex_program *
 284 st_vertex_program( struct gl_vertex_program *vp )
 285 {
 286    return (struct st_vertex_program *)vp;
 287 }
 288
 289 static inline struct st_geometry_program *
 290 st_geometry_program( struct gl_geometry_program *gp )
 291 {
 292    return (struct st_geometry_program *)gp;
 293 }
 294
 295 static inline struct st_tessctrl_program *
 296 st_tessctrl_program( struct gl_tess_ctrl_program *tcp )
 297 {
 298    return (struct st_tessctrl_program *)tcp;
 299 }
 300
 301 static inline struct st_tesseval_program *
 302 st_tesseval_program( struct gl_tess_eval_program *tep )
 303 {
 304    return (struct st_tesseval_program *)tep;
 305 }
 306
 307 static inline void
 308 st_reference_vertprog(struct st_context *st,
 309                       struct st_vertex_program **ptr,
 310                       struct st_vertex_program *prog)
 311 {
 312    _mesa_reference_program(st->ctx,
 313                            (struct gl_program **) ptr,
 314                            (struct gl_program *) prog);
 315 }
 316
 317 static inline void
 318 st_reference_geomprog(struct st_context *st,
 319                       struct st_geometry_program **ptr,
 320                       struct st_geometry_program *prog)
 321 {
 322    _mesa_reference_program(st->ctx,
 323                            (struct gl_program **) ptr,
 324                            (struct gl_program *) prog);
 325 }
 326
 327 static inline void
 328 st_reference_fragprog(struct st_context *st,
 329                       struct st_fragment_program **ptr,
 330                       struct st_fragment_program *prog)
 331 {
 332    _mesa_reference_program(st->ctx,
 333                            (struct gl_program **) ptr,
 334                            (struct gl_program *) prog);
 335 }
 336
 337 static inline void
 338 st_reference_tesscprog(struct st_context *st,
 339                        struct st_tessctrl_program **ptr,
 340                        struct st_tessctrl_program *prog)
 341 {
 342    _mesa_reference_program(st->ctx,
 343                            (struct gl_program **) ptr,
 344                            (struct gl_program *) prog);
 345 }
 346
 347 static inline void
 348 st_reference_tesseprog(struct st_context *st,
 349                        struct st_tesseval_program **ptr,
 350                        struct st_tesseval_program *prog)
 351 {
 352    _mesa_reference_program(st->ctx,
 353                            (struct gl_program **) ptr,
 354                            (struct gl_program *) prog);
 355 }
 356
 357 /**
 358  * This defines mapping from Mesa VARYING_SLOTs to TGSI GENERIC slots.
 359  */
 360 static inline unsigned
 361 st_get_generic_varying_index(struct st_context *st, GLuint attr)
 362 {
 363    if (attr >= VARYING_SLOT_VAR0) {
 364       if (st->needs_texcoord_semantic)
 365          return attr - VARYING_SLOT_VAR0;
 366       else
 367          return 9 + (attr - VARYING_SLOT_VAR0);
 368    }
 369    if (attr == VARYING_SLOT_PNTC) {
 370       assert(!st->needs_texcoord_semantic);
 371       return 8;
 372    }
 373    if (attr >= VARYING_SLOT_TEX0 && attr <= VARYING_SLOT_TEX7) {
 374       assert(!st->needs_texcoord_semantic);
 375       return attr - VARYING_SLOT_TEX0;
 376    }
 377
 378    assert(0);
 379    return 0;
 380 }
 381
 382
 383 extern struct st_vp_variant *
 384 st_get_vp_variant(struct st_context *st,
 385                   struct st_vertex_program *stvp,
 386                   const struct st_vp_variant_key *key);
 387
 388
 389 extern struct st_fp_variant *
 390 st_get_fp_variant(struct st_context *st,
 391                   struct st_fragment_program *stfp,
 392                   const struct st_fp_variant_key *key);
 393
 394
 395 extern struct st_gp_variant *
 396 st_get_gp_variant(struct st_context *st,
 397                   struct st_geometry_program *stgp,
 398                   const struct st_gp_variant_key *key);
 399
 400 extern struct st_tcp_variant *
 401 st_get_tcp_variant(struct st_context *st,
 402                    struct st_tessctrl_program *stgp,
 403                    const struct st_tcp_variant_key *key);
 404
 405 extern struct st_tep_variant *
 406 st_get_tep_variant(struct st_context *st,
 407                    struct st_tesseval_program *stgp,
 408                    const struct st_tep_variant_key *key);
 409
 410 extern void
 411 st_release_vp_variants( struct st_context *st,
 412                         struct st_vertex_program *stvp );
 413
 414 extern void
 415 st_release_fp_variants( struct st_context *st,
 416                         struct st_fragment_program *stfp );
 417
 418 extern void
 419 st_release_gp_variants(struct st_context *st,
 420                        struct st_geometry_program *stgp);
 421
 422 extern void
 423 st_release_tcp_variants(struct st_context *st,
 424                         struct st_tessctrl_program *stgp);
 425
 426 extern void
 427 st_release_tep_variants(struct st_context *st,
 428                         struct st_tesseval_program *stgp);
 429
 430 extern void
 431 st_destroy_program_variants(struct st_context *st);
 432
 433
 434 extern void
 435 st_print_current_vertex_program(void);
 436
 437 extern void
 438 st_precompile_shader_variant(struct st_context *st,
 439                              struct gl_program *prog);
 440
 441 #ifdef __cplusplus
 442 }
 443 #endif
 444
 445 #endif