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 };
  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
 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_program:
 201  */
 202 struct st_vertex_program
 203 {
 204    struct gl_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 TGSI input index back to a Mesa VERT_ATTRIB_x */
 213    ubyte index_to_input[PIPE_MAX_ATTRIBS];
 214    ubyte num_inputs;
 215
 216    /** Maps VARYING_SLOT_x to slot */
 217    ubyte result_to_output[VARYING_SLOT_MAX];
 218
 219    /** List of translated variants of this vertex program.
 220     */
 221    struct st_vp_variant *variants;
 222
 223    /** SHA1 hash of linked tgsi shader program, used for on-disk cache */
 224    unsigned char sha1[20];
 225 };
 226
 227
 228
 229 /** Key shared by all shaders except VP, FP */
 230 struct st_basic_variant_key
 231 {
 232    struct st_context *st;          /**< variants are per-context */
 233 };
 234
 235
 236 /**
 237  * Geometry program variant.
 238  */
 239 struct st_basic_variant
 240 {
 241    /* Parameters which generated this variant. */
 242    struct st_basic_variant_key key;
 243
 244    void *driver_shader;
 245
 246    struct st_basic_variant *next;
 247 };
 248
 249
 250 /**
 251  * Derived from Mesa gl_program:
 252  */
 253 struct st_common_program
 254 {
 255    struct gl_program Base;
 256    struct pipe_shader_state tgsi;
 257    struct glsl_to_tgsi_visitor* glsl_to_tgsi;
 258    uint64_t affected_states; /**< ST_NEW_* flags to mark dirty when binding */
 259
 260   /* used when bypassing glsl_to_tgsi: */
 261    struct gl_shader_program *shader_program;
 262
 263    struct st_basic_variant *variants;
 264
 265    /** SHA1 hash of linked tgsi shader program, used for on-disk cache */
 266    unsigned char sha1[20];
 267 };
 268
 269
 270 /**
 271  * Derived from Mesa gl_program:
 272  */
 273 struct st_compute_program
 274 {
 275    struct gl_program Base;  /**< The Mesa compute program */
 276    struct pipe_compute_state tgsi;
 277    struct glsl_to_tgsi_visitor* glsl_to_tgsi;
 278    uint64_t affected_states; /**< ST_NEW_* flags to mark dirty when binding */
 279
 280    /* used when bypassing glsl_to_tgsi: */
 281    struct gl_shader_program *shader_program;
 282
 283    struct st_basic_variant *variants;
 284
 285    /** SHA1 hash of linked tgsi shader program, used for on-disk cache */
 286    unsigned char sha1[20];
 287 };
 288
 289
 290 static inline struct st_fragment_program *
 291 st_fragment_program( struct gl_program *fp )
 292 {
 293    return (struct st_fragment_program *)fp;
 294 }
 295
 296
 297 static inline struct st_vertex_program *
 298 st_vertex_program( struct gl_program *vp )
 299 {
 300    return (struct st_vertex_program *)vp;
 301 }
 302
 303 static inline struct st_common_program *
 304 st_common_program( struct gl_program *gp )
 305 {
 306    return (struct st_common_program *)gp;
 307 }
 308
 309 static inline struct st_compute_program *
 310 st_compute_program( struct gl_program *cp )
 311 {
 312    return (struct st_compute_program *)cp;
 313 }
 314
 315 static inline void
 316 st_reference_vertprog(struct st_context *st,
 317                       struct st_vertex_program **ptr,
 318                       struct st_vertex_program *prog)
 319 {
 320    _mesa_reference_program(st->ctx,
 321                            (struct gl_program **) ptr,
 322                            (struct gl_program *) prog);
 323 }
 324
 325 static inline void
 326 st_reference_fragprog(struct st_context *st,
 327                       struct st_fragment_program **ptr,
 328                       struct st_fragment_program *prog)
 329 {
 330    _mesa_reference_program(st->ctx,
 331                            (struct gl_program **) ptr,
 332                            (struct gl_program *) prog);
 333 }
 334
 335 static inline void
 336 st_reference_prog(struct st_context *st,
 337                   struct st_common_program **ptr,
 338                   struct st_common_program *prog)
 339 {
 340    _mesa_reference_program(st->ctx,
 341                            (struct gl_program **) ptr,
 342                            (struct gl_program *) prog);
 343 }
 344
 345 static inline void
 346 st_reference_compprog(struct st_context *st,
 347                       struct st_compute_program **ptr,
 348                       struct st_compute_program *prog)
 349 {
 350    _mesa_reference_program(st->ctx,
 351                            (struct gl_program **) ptr,
 352                            (struct gl_program *) prog);
 353 }
 354
 355 /**
 356  * This defines mapping from Mesa VARYING_SLOTs to TGSI GENERIC slots.
 357  */
 358 static inline unsigned
 359 st_get_generic_varying_index(struct st_context *st, GLuint attr)
 360 {
 361    return tgsi_get_generic_gl_varying_index((gl_varying_slot)attr,
 362                                             st->needs_texcoord_semantic);
 363 }
 364
 365 extern void
 366 st_set_prog_affected_state_flags(struct gl_program *prog);
 367
 368 extern struct st_vp_variant *
 369 st_get_vp_variant(struct st_context *st,
 370                   struct st_vertex_program *stvp,
 371                   const struct st_vp_variant_key *key);
 372
 373
 374 extern struct st_fp_variant *
 375 st_get_fp_variant(struct st_context *st,
 376                   struct st_fragment_program *stfp,
 377                   const struct st_fp_variant_key *key);
 378
 379 extern struct st_basic_variant *
 380 st_get_cp_variant(struct st_context *st,
 381                   struct pipe_compute_state *tgsi,
 382                   struct st_basic_variant **variants);
 383
 384 extern struct st_basic_variant *
 385 st_get_basic_variant(struct st_context *st,
 386                      unsigned pipe_shader,
 387                      struct st_common_program *p);
 388
 389 extern void
 390 st_release_vp_variants( struct st_context *st,
 391                         struct st_vertex_program *stvp );
 392
 393 extern void
 394 st_release_fp_variants( struct st_context *st,
 395                         struct st_fragment_program *stfp );
 396
 397 extern void
 398 st_release_cp_variants(struct st_context *st,
 399                         struct st_compute_program *stcp);
 400
 401 extern void
 402 st_release_basic_variants(struct st_context *st, GLenum target,
 403                           struct st_basic_variant **variants,
 404                           struct pipe_shader_state *tgsi);
 405
 406 extern void
 407 st_destroy_program_variants(struct st_context *st);
 408
 409 extern bool
 410 st_translate_vertex_program(struct st_context *st,
 411                             struct st_vertex_program *stvp);
 412
 413 extern bool
 414 st_translate_fragment_program(struct st_context *st,
 415                               struct st_fragment_program *stfp);
 416
 417 extern bool
 418 st_translate_geometry_program(struct st_context *st,
 419                               struct st_common_program *stgp);
 420
 421 extern bool
 422 st_translate_tessctrl_program(struct st_context *st,
 423                               struct st_common_program *sttcp);
 424
 425 extern bool
 426 st_translate_tesseval_program(struct st_context *st,
 427                               struct st_common_program *sttep);
 428
 429 extern bool
 430 st_translate_compute_program(struct st_context *st,
 431                              struct st_compute_program *stcp);
 432
 433 extern void
 434 st_print_current_vertex_program(void);
 435
 436 extern void
 437 st_precompile_shader_variant(struct st_context *st,
 438                              struct gl_program *prog);
 439
 440 #ifdef __cplusplus
 441 }
 442 #endif
 443
 444 #endif