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 "tgsi/tgsi_from_mesa.h"
  42 #include "st_context.h"
  43 #include "st_texture.h"
  44 #include "st_glsl_to_tgsi.h"
  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    GLuint lower_xy_uxvx;          /**< bitmask of 2 plane YUV samplers */
  57    GLuint lower_yx_xuxv;          /**< bitmask of 2 plane YUV samplers */
  58    GLuint lower_ayuv;
  59    GLuint lower_xyuv;
  60 };
  61
  62 static inline struct st_external_sampler_key
  63 st_get_external_sampler_key(struct st_context *st, struct gl_program *prog)
  64 {
  65    unsigned mask = prog->ExternalSamplersUsed;
  66    struct st_external_sampler_key key;
  67
  68    memset(&key, 0, sizeof(key));
  69
  70    while (unlikely(mask)) {
  71       unsigned unit = u_bit_scan(&mask);
  72       struct st_texture_object *stObj =
  73             st_get_texture_object(st->ctx, prog, unit);
  74
  75       switch (st_get_view_format(stObj)) {
  76       case PIPE_FORMAT_NV12:
  77       case PIPE_FORMAT_P016:
  78          key.lower_nv12 |= (1 << unit);
  79          break;
  80       case PIPE_FORMAT_IYUV:
  81          key.lower_iyuv |= (1 << unit);
  82          break;
  83       case PIPE_FORMAT_YUYV:
  84          key.lower_yx_xuxv |= (1 << unit);
  85          break;
  86       case PIPE_FORMAT_UYVY:
  87          key.lower_xy_uxvx |= (1 << unit);
  88          break;
  89       case PIPE_FORMAT_AYUV:
  90          key.lower_ayuv |= (1 << unit);
  91          break;
  92       case PIPE_FORMAT_XYUV:
  93          key.lower_xyuv |= (1 << unit);
  94          break;
  95       default:
  96          printf("unhandled %u\n", st_get_view_format(stObj));
  97          break;
  98       }
  99    }
 100
 101    return key;
 102 }
 103
 104 /** Fragment program variant key */
 105 struct st_fp_variant_key
 106 {
 107    struct st_context *st;         /**< variants are per-context */
 108
 109    /** for glBitmap */
 110    GLuint bitmap:1;               /**< glBitmap variant? */
 111
 112    /** for glDrawPixels */
 113    GLuint drawpixels:1;           /**< glDrawPixels variant */
 114    GLuint scaleAndBias:1;         /**< glDrawPixels w/ scale and/or bias? */
 115    GLuint pixelMaps:1;            /**< glDrawPixels w/ pixel lookup map? */
 116
 117    /** for ARB_color_buffer_float */
 118    GLuint clamp_color:1;
 119
 120    /** for ARB_sample_shading */
 121    GLuint persample_shading:1;
 122
 123    /** needed for ATI_fragment_shader */
 124    GLuint fog:2;
 125
 126    /** needed for ATI_fragment_shader */
 127    char texture_targets[MAX_NUM_FRAGMENT_REGISTERS_ATI];
 128
 129    struct st_external_sampler_key external;
 130 };
 131
 132
 133 /**
 134  * Variant of a fragment program.
 135  */
 136 struct st_fp_variant
 137 {
 138    /** Parameters which generated this version of fragment program */
 139    struct st_fp_variant_key key;
 140
 141    /** Driver's compiled shader */
 142    void *driver_shader;
 143
 144    /** For glBitmap variants */
 145    uint bitmap_sampler;
 146
 147    /** For glDrawPixels variants */
 148    unsigned drawpix_sampler;
 149    unsigned pixelmap_sampler;
 150
 151    /** next in linked list */
 152    struct st_fp_variant *next;
 153 };
 154
 155
 156 /**
 157  * Derived from Mesa gl_program:
 158  */
 159 struct st_fragment_program
 160 {
 161    struct gl_program Base;
 162    struct pipe_shader_state tgsi;
 163    struct glsl_to_tgsi_visitor* glsl_to_tgsi;
 164    struct ati_fragment_shader *ati_fs;
 165    uint64_t affected_states; /**< ST_NEW_* flags to mark dirty when binding */
 166
 167    /* used when bypassing glsl_to_tgsi: */
 168    struct gl_shader_program *shader_program;
 169
 170    struct st_fp_variant *variants;
 171
 172    /* Used by the shader cache and ARB_get_program_binary */
 173    unsigned num_tgsi_tokens;
 174 };
 175
 176
 177
 178 /** Vertex program variant key */
 179 struct st_vp_variant_key
 180 {
 181    struct st_context *st;          /**< variants are per-context */
 182    bool passthrough_edgeflags;
 183
 184    /** for ARB_color_buffer_float */
 185    bool clamp_color;
 186
 187    /** both for ARB_depth_clamp */
 188    bool lower_depth_clamp;
 189    bool clip_negative_one_to_one;
 190 };
 191
 192
 193 /**
 194  * This represents a vertex program, especially translated to match
 195  * the inputs of a particular fragment shader.
 196  */
 197 struct st_vp_variant
 198 {
 199    /* Parameters which generated this translated version of a vertex
 200     * shader:
 201     */
 202    struct st_vp_variant_key key;
 203
 204    /**
 205     * TGSI tokens (to later generate a 'draw' module shader for
 206     * selection/feedback/rasterpos)
 207     */
 208    struct pipe_shader_state tgsi;
 209
 210    /** Driver's compiled shader */
 211    void *driver_shader;
 212
 213    /** For using our private draw module (glRasterPos) */
 214    struct draw_vertex_shader *draw_shader;
 215
 216    /** Next in linked list */
 217    struct st_vp_variant *next;
 218
 219    /** similar to that in st_vertex_program, but with edgeflags info too */
 220    GLuint num_inputs;
 221
 222    /** Bitfield of VERT_BIT_* bits of mesa vertex processing inputs */
 223    GLbitfield vert_attrib_mask;
 224 };
 225
 226
 227 /**
 228  * Derived from Mesa gl_program:
 229  */
 230 struct st_vertex_program
 231 {
 232    struct gl_program Base;  /**< The Mesa vertex program */
 233    struct pipe_shader_state tgsi;
 234    struct glsl_to_tgsi_visitor* glsl_to_tgsi;
 235    uint64_t affected_states; /**< ST_NEW_* flags to mark dirty when binding */
 236
 237    /* used when bypassing glsl_to_tgsi: */
 238    struct gl_shader_program *shader_program;
 239
 240    /** maps a TGSI input index back to a Mesa VERT_ATTRIB_x */
 241    ubyte index_to_input[PIPE_MAX_ATTRIBS];
 242    ubyte num_inputs;
 243    /** Reverse mapping of the above */
 244    ubyte input_to_index[VERT_ATTRIB_MAX];
 245
 246    /** Maps VARYING_SLOT_x to slot */
 247    ubyte result_to_output[VARYING_SLOT_MAX];
 248
 249    /** List of translated variants of this vertex program.
 250     */
 251    struct st_vp_variant *variants;
 252
 253    /** SHA1 hash of linked tgsi shader program, used for on-disk cache */
 254    unsigned char sha1[20];
 255
 256    /* Used by the shader cache and ARB_get_program_binary */
 257    unsigned num_tgsi_tokens;
 258 };
 259
 260
 261
 262 /** Key shared by all shaders except VP, FP */
 263 struct st_basic_variant_key
 264 {
 265    struct st_context *st;          /**< variants are per-context */
 266
 267    /** For compat profile */
 268    bool clamp_color;
 269 };
 270
 271
 272 /**
 273  * Geometry program variant.
 274  */
 275 struct st_basic_variant
 276 {
 277    /* Parameters which generated this variant. */
 278    struct st_basic_variant_key key;
 279
 280    void *driver_shader;
 281
 282    struct st_basic_variant *next;
 283 };
 284
 285
 286 /**
 287  * Derived from Mesa gl_program:
 288  */
 289 struct st_common_program
 290 {
 291    struct gl_program Base;
 292    struct pipe_shader_state tgsi;
 293    struct glsl_to_tgsi_visitor* glsl_to_tgsi;
 294    uint64_t affected_states; /**< ST_NEW_* flags to mark dirty when binding */
 295
 296   /* used when bypassing glsl_to_tgsi: */
 297    struct gl_shader_program *shader_program;
 298
 299    struct st_basic_variant *variants;
 300
 301    /** SHA1 hash of linked tgsi shader program, used for on-disk cache */
 302    unsigned char sha1[20];
 303
 304    /* Used by the shader cache and ARB_get_program_binary */
 305    unsigned num_tgsi_tokens;
 306 };
 307
 308
 309 /**
 310  * Derived from Mesa gl_program:
 311  */
 312 struct st_compute_program
 313 {
 314    struct gl_program Base;  /**< The Mesa compute program */
 315    struct pipe_compute_state tgsi;
 316    struct glsl_to_tgsi_visitor* glsl_to_tgsi;
 317    uint64_t affected_states; /**< ST_NEW_* flags to mark dirty when binding */
 318
 319    /* used when bypassing glsl_to_tgsi: */
 320    struct gl_shader_program *shader_program;
 321
 322    struct st_basic_variant *variants;
 323
 324    /** SHA1 hash of linked tgsi shader program, used for on-disk cache */
 325    unsigned char sha1[20];
 326
 327    /* Used by the shader cache and ARB_get_program_binary */
 328    unsigned num_tgsi_tokens;
 329 };
 330
 331
 332 static inline struct st_fragment_program *
 333 st_fragment_program( struct gl_program *fp )
 334 {
 335    return (struct st_fragment_program *)fp;
 336 }
 337
 338
 339 static inline struct st_vertex_program *
 340 st_vertex_program( struct gl_program *vp )
 341 {
 342    return (struct st_vertex_program *)vp;
 343 }
 344
 345 static inline struct st_common_program *
 346 st_common_program( struct gl_program *gp )
 347 {
 348    return (struct st_common_program *)gp;
 349 }
 350
 351 static inline struct st_compute_program *
 352 st_compute_program( struct gl_program *cp )
 353 {
 354    return (struct st_compute_program *)cp;
 355 }
 356
 357 static inline void
 358 st_reference_vertprog(struct st_context *st,
 359                       struct st_vertex_program **ptr,
 360                       struct st_vertex_program *prog)
 361 {
 362    _mesa_reference_program(st->ctx,
 363                            (struct gl_program **) ptr,
 364                            (struct gl_program *) prog);
 365 }
 366
 367 static inline void
 368 st_reference_fragprog(struct st_context *st,
 369                       struct st_fragment_program **ptr,
 370                       struct st_fragment_program *prog)
 371 {
 372    _mesa_reference_program(st->ctx,
 373                            (struct gl_program **) ptr,
 374                            (struct gl_program *) prog);
 375 }
 376
 377 static inline void
 378 st_reference_prog(struct st_context *st,
 379                   struct st_common_program **ptr,
 380                   struct st_common_program *prog)
 381 {
 382    _mesa_reference_program(st->ctx,
 383                            (struct gl_program **) ptr,
 384                            (struct gl_program *) prog);
 385 }
 386
 387 static inline void
 388 st_reference_compprog(struct st_context *st,
 389                       struct st_compute_program **ptr,
 390                       struct st_compute_program *prog)
 391 {
 392    _mesa_reference_program(st->ctx,
 393                            (struct gl_program **) ptr,
 394                            (struct gl_program *) prog);
 395 }
 396
 397 /**
 398  * This defines mapping from Mesa VARYING_SLOTs to TGSI GENERIC slots.
 399  */
 400 static inline unsigned
 401 st_get_generic_varying_index(struct st_context *st, GLuint attr)
 402 {
 403    return tgsi_get_generic_gl_varying_index((gl_varying_slot)attr,
 404                                             st->needs_texcoord_semantic);
 405 }
 406
 407 extern void
 408 st_set_prog_affected_state_flags(struct gl_program *prog);
 409
 410 extern struct st_vp_variant *
 411 st_get_vp_variant(struct st_context *st,
 412                   struct st_vertex_program *stvp,
 413                   const struct st_vp_variant_key *key);
 414
 415
 416 extern struct st_fp_variant *
 417 st_get_fp_variant(struct st_context *st,
 418                   struct st_fragment_program *stfp,
 419                   const struct st_fp_variant_key *key);
 420
 421 extern struct st_basic_variant *
 422 st_get_cp_variant(struct st_context *st,
 423                   struct pipe_compute_state *tgsi,
 424                   struct st_basic_variant **variants);
 425
 426 extern struct st_basic_variant *
 427 st_get_basic_variant(struct st_context *st,
 428                      unsigned pipe_shader,
 429                      struct st_common_program *p,
 430                      const struct st_basic_variant_key *key);
 431
 432 extern void
 433 st_release_vp_variants( struct st_context *st,
 434                         struct st_vertex_program *stvp );
 435
 436 extern void
 437 st_release_fp_variants( struct st_context *st,
 438                         struct st_fragment_program *stfp );
 439
 440 extern void
 441 st_release_cp_variants(struct st_context *st,
 442                         struct st_compute_program *stcp);
 443
 444 extern void
 445 st_release_basic_variants(struct st_context *st, GLenum target,
 446                           struct st_basic_variant **variants,
 447                           struct pipe_shader_state *tgsi);
 448
 449 extern void
 450 st_destroy_program_variants(struct st_context *st);
 451
 452 extern bool
 453 st_translate_vertex_program(struct st_context *st,
 454                             struct st_vertex_program *stvp);
 455
 456 extern bool
 457 st_translate_fragment_program(struct st_context *st,
 458                               struct st_fragment_program *stfp);
 459
 460 extern bool
 461 st_translate_geometry_program(struct st_context *st,
 462                               struct st_common_program *stgp);
 463
 464 extern bool
 465 st_translate_tessctrl_program(struct st_context *st,
 466                               struct st_common_program *sttcp);
 467
 468 extern bool
 469 st_translate_tesseval_program(struct st_context *st,
 470                               struct st_common_program *sttep);
 471
 472 extern bool
 473 st_translate_compute_program(struct st_context *st,
 474                              struct st_compute_program *stcp);
 475
 476 extern void
 477 st_print_current_vertex_program(void);
 478
 479 extern void
 480 st_precompile_shader_variant(struct st_context *st,
 481                              struct gl_program *prog);
 482
 483 #ifdef __cplusplus
 484 }
 485 #endif
 486
 487 #endif