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    /** SHA1 hash of linked tgsi shader program, used for on-disk cache */
 155    unsigned char sha1[20];
 156 };
 157
 158
 159
 160 /** Vertex program variant key */
 161 struct st_vp_variant_key
 162 {
 163    struct st_context *st;          /**< variants are per-context */
 164    boolean passthrough_edgeflags;
 165
 166    /** for ARB_color_buffer_float */
 167    boolean clamp_color;
 168 };
 169
 170
 171 /**
 172  * This represents a vertex program, especially translated to match
 173  * the inputs of a particular fragment shader.
 174  */
 175 struct st_vp_variant
 176 {
 177    /* Parameters which generated this translated version of a vertex
 178     * shader:
 179     */
 180    struct st_vp_variant_key key;
 181
 182    /**
 183     * TGSI tokens (to later generate a 'draw' module shader for
 184     * selection/feedback/rasterpos)
 185     */
 186    struct pipe_shader_state tgsi;
 187
 188    /** Driver's compiled shader */
 189    void *driver_shader;
 190
 191    /** For using our private draw module (glRasterPos) */
 192    struct draw_vertex_shader *draw_shader;
 193
 194    /** Next in linked list */
 195    struct st_vp_variant *next;
 196
 197    /** similar to that in st_vertex_program, but with edgeflags info too */
 198    GLuint num_inputs;
 199 };
 200
 201
 202 /**
 203  * Derived from Mesa gl_program:
 204  */
 205 struct st_vertex_program
 206 {
 207    struct gl_program Base;  /**< The Mesa vertex program */
 208    struct pipe_shader_state tgsi;
 209    struct glsl_to_tgsi_visitor* glsl_to_tgsi;
 210    uint64_t affected_states; /**< ST_NEW_* flags to mark dirty when binding */
 211
 212    /* used when bypassing glsl_to_tgsi: */
 213    struct gl_shader_program *shader_program;
 214
 215    /** maps a TGSI input index back to a Mesa VERT_ATTRIB_x */
 216    ubyte index_to_input[PIPE_MAX_ATTRIBS];
 217    ubyte num_inputs;
 218
 219    /** Maps VARYING_SLOT_x to slot */
 220    ubyte result_to_output[VARYING_SLOT_MAX];
 221
 222    /** List of translated variants of this vertex program.
 223     */
 224    struct st_vp_variant *variants;
 225
 226    /** SHA1 hash of linked tgsi shader program, used for on-disk cache */
 227    unsigned char sha1[20];
 228 };
 229
 230
 231
 232 /** Key shared by all shaders except VP, FP */
 233 struct st_basic_variant_key
 234 {
 235    struct st_context *st;          /**< variants are per-context */
 236 };
 237
 238
 239 /**
 240  * Geometry program variant.
 241  */
 242 struct st_basic_variant
 243 {
 244    /* Parameters which generated this variant. */
 245    struct st_basic_variant_key key;
 246
 247    void *driver_shader;
 248
 249    struct st_basic_variant *next;
 250 };
 251
 252
 253 /**
 254  * Derived from Mesa gl_program:
 255  */
 256 struct st_common_program
 257 {
 258    struct gl_program Base;
 259    struct pipe_shader_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    /** 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 pipe_shader_state *tgsi,
 388                      struct st_basic_variant **variants);
 389
 390 extern void
 391 st_release_vp_variants( struct st_context *st,
 392                         struct st_vertex_program *stvp );
 393
 394 extern void
 395 st_release_fp_variants( struct st_context *st,
 396                         struct st_fragment_program *stfp );
 397
 398 extern void
 399 st_release_cp_variants(struct st_context *st,
 400                         struct st_compute_program *stcp);
 401
 402 extern void
 403 st_release_basic_variants(struct st_context *st, GLenum target,
 404                           struct st_basic_variant **variants,
 405                           struct pipe_shader_state *tgsi);
 406
 407 extern void
 408 st_destroy_program_variants(struct st_context *st);
 409
 410 extern bool
 411 st_translate_vertex_program(struct st_context *st,
 412                             struct st_vertex_program *stvp);
 413
 414 extern bool
 415 st_translate_fragment_program(struct st_context *st,
 416                               struct st_fragment_program *stfp);
 417
 418 extern bool
 419 st_translate_geometry_program(struct st_context *st,
 420                               struct st_common_program *stgp);
 421
 422 extern bool
 423 st_translate_tessctrl_program(struct st_context *st,
 424                               struct st_common_program *sttcp);
 425
 426 extern bool
 427 st_translate_tesseval_program(struct st_context *st,
 428                               struct st_common_program *sttep);
 429
 430 extern bool
 431 st_translate_compute_program(struct st_context *st,
 432                              struct st_compute_program *stcp);
 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