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    /** for ARB_depth_clamp */
 127    GLuint lower_depth_clamp:1;
 128
 129    /** needed for ATI_fragment_shader */
 130    char texture_targets[MAX_NUM_FRAGMENT_REGISTERS_ATI];
 131
 132    struct st_external_sampler_key external;
 133
 134    GLuint lower_flatshade:1;
 135    enum compare_func lower_alpha_func:3;
 136 };
 137
 138
 139 /**
 140  * Variant of a fragment program.
 141  */
 142 struct st_fp_variant
 143 {
 144    /** Parameters which generated this version of fragment program */
 145    struct st_fp_variant_key key;
 146
 147    /** Driver's compiled shader */
 148    void *driver_shader;
 149
 150    /** For glBitmap variants */
 151    uint bitmap_sampler;
 152
 153    /** For glDrawPixels variants */
 154    unsigned drawpix_sampler;
 155    unsigned pixelmap_sampler;
 156
 157    /** next in linked list */
 158    struct st_fp_variant *next;
 159 };
 160
 161
 162 /**
 163  * Derived from Mesa gl_program:
 164  */
 165 struct st_fragment_program
 166 {
 167    struct gl_program Base;
 168    struct pipe_shader_state tgsi;
 169    struct glsl_to_tgsi_visitor* glsl_to_tgsi;
 170    struct ati_fragment_shader *ati_fs;
 171    uint64_t affected_states; /**< ST_NEW_* flags to mark dirty when binding */
 172
 173    /* used when bypassing glsl_to_tgsi: */
 174    struct gl_shader_program *shader_program;
 175
 176    struct st_fp_variant *variants;
 177
 178    /* Used by the shader cache and ARB_get_program_binary */
 179    unsigned num_tgsi_tokens;
 180 };
 181
 182
 183
 184 /** Vertex program variant key */
 185 struct st_vp_variant_key
 186 {
 187    struct st_context *st;          /**< variants are per-context */
 188    bool passthrough_edgeflags;
 189
 190    /** for ARB_color_buffer_float */
 191    bool clamp_color;
 192
 193    /** both for ARB_depth_clamp */
 194    bool lower_depth_clamp;
 195    bool clip_negative_one_to_one;
 196
 197    /** lower glPointSize to gl_PointSize */
 198    boolean lower_point_size;
 199 };
 200
 201
 202 /**
 203  * This represents a vertex program, especially translated to match
 204  * the inputs of a particular fragment shader.
 205  */
 206 struct st_vp_variant
 207 {
 208    /* Parameters which generated this translated version of a vertex
 209     * shader:
 210     */
 211    struct st_vp_variant_key key;
 212
 213    /**
 214     * TGSI tokens (to later generate a 'draw' module shader for
 215     * selection/feedback/rasterpos)
 216     */
 217    struct pipe_shader_state tgsi;
 218
 219    /** Driver's compiled shader */
 220    void *driver_shader;
 221
 222    /** For using our private draw module (glRasterPos) */
 223    struct draw_vertex_shader *draw_shader;
 224
 225    /** Next in linked list */
 226    struct st_vp_variant *next;
 227
 228    /** similar to that in st_vertex_program, but with edgeflags info too */
 229    GLuint num_inputs;
 230
 231    /** Bitfield of VERT_BIT_* bits of mesa vertex processing inputs */
 232    GLbitfield vert_attrib_mask;
 233 };
 234
 235
 236 /**
 237  * Derived from Mesa gl_program:
 238  */
 239 struct st_vertex_program
 240 {
 241    struct gl_program Base;  /**< The Mesa vertex program */
 242    struct pipe_shader_state tgsi;
 243    struct glsl_to_tgsi_visitor* glsl_to_tgsi;
 244    uint64_t affected_states; /**< ST_NEW_* flags to mark dirty when binding */
 245
 246    /* used when bypassing glsl_to_tgsi: */
 247    struct gl_shader_program *shader_program;
 248
 249    /** maps a TGSI input index back to a Mesa VERT_ATTRIB_x */
 250    ubyte index_to_input[PIPE_MAX_ATTRIBS];
 251    ubyte num_inputs;
 252    /** Reverse mapping of the above */
 253    ubyte input_to_index[VERT_ATTRIB_MAX];
 254
 255    /** Maps VARYING_SLOT_x to slot */
 256    ubyte result_to_output[VARYING_SLOT_MAX];
 257
 258    /** List of translated variants of this vertex program.
 259     */
 260    struct st_vp_variant *variants;
 261
 262    /** SHA1 hash of linked tgsi shader program, used for on-disk cache */
 263    unsigned char sha1[20];
 264
 265    /* Used by the shader cache and ARB_get_program_binary */
 266    unsigned num_tgsi_tokens;
 267 };
 268
 269
 270
 271 /** Key shared by all shaders except VP, FP */
 272 struct st_basic_variant_key
 273 {
 274    struct st_context *st;          /**< variants are per-context */
 275
 276    /** For compat profile */
 277    bool clamp_color;
 278
 279    /** both for ARB_depth_clamp */
 280    bool lower_depth_clamp;
 281    bool clip_negative_one_to_one;
 282
 283 };
 284
 285
 286 /**
 287  * Geometry program variant.
 288  */
 289 struct st_basic_variant
 290 {
 291    /* Parameters which generated this variant. */
 292    struct st_basic_variant_key key;
 293
 294    void *driver_shader;
 295
 296    struct st_basic_variant *next;
 297 };
 298
 299
 300 /**
 301  * Derived from Mesa gl_program:
 302  */
 303 struct st_common_program
 304 {
 305    struct gl_program Base;
 306    struct pipe_shader_state tgsi;
 307    struct glsl_to_tgsi_visitor* glsl_to_tgsi;
 308    uint64_t affected_states; /**< ST_NEW_* flags to mark dirty when binding */
 309
 310   /* used when bypassing glsl_to_tgsi: */
 311    struct gl_shader_program *shader_program;
 312
 313    struct st_basic_variant *variants;
 314
 315    /** SHA1 hash of linked tgsi shader program, used for on-disk cache */
 316    unsigned char sha1[20];
 317
 318    /* Used by the shader cache and ARB_get_program_binary */
 319    unsigned num_tgsi_tokens;
 320 };
 321
 322
 323 static inline struct st_fragment_program *
 324 st_fragment_program( struct gl_program *fp )
 325 {
 326    return (struct st_fragment_program *)fp;
 327 }
 328
 329
 330 static inline struct st_vertex_program *
 331 st_vertex_program( struct gl_program *vp )
 332 {
 333    return (struct st_vertex_program *)vp;
 334 }
 335
 336 static inline struct st_common_program *
 337 st_common_program( struct gl_program *cp )
 338 {
 339    return (struct st_common_program *)cp;
 340 }
 341
 342 static inline void
 343 st_reference_vertprog(struct st_context *st,
 344                       struct st_vertex_program **ptr,
 345                       struct st_vertex_program *prog)
 346 {
 347    _mesa_reference_program(st->ctx,
 348                            (struct gl_program **) ptr,
 349                            (struct gl_program *) prog);
 350 }
 351
 352 static inline void
 353 st_reference_fragprog(struct st_context *st,
 354                       struct st_fragment_program **ptr,
 355                       struct st_fragment_program *prog)
 356 {
 357    _mesa_reference_program(st->ctx,
 358                            (struct gl_program **) ptr,
 359                            (struct gl_program *) prog);
 360 }
 361
 362 static inline void
 363 st_reference_prog(struct st_context *st,
 364                   struct st_common_program **ptr,
 365                   struct st_common_program *prog)
 366 {
 367    _mesa_reference_program(st->ctx,
 368                            (struct gl_program **) ptr,
 369                            (struct gl_program *) prog);
 370 }
 371
 372 static inline void
 373 st_reference_compprog(struct st_context *st,
 374                       struct st_common_program **ptr,
 375                       struct st_common_program *prog)
 376 {
 377    _mesa_reference_program(st->ctx,
 378                            (struct gl_program **) ptr,
 379                            (struct gl_program *) prog);
 380 }
 381
 382 /**
 383  * This defines mapping from Mesa VARYING_SLOTs to TGSI GENERIC slots.
 384  */
 385 static inline unsigned
 386 st_get_generic_varying_index(struct st_context *st, GLuint attr)
 387 {
 388    return tgsi_get_generic_gl_varying_index((gl_varying_slot)attr,
 389                                             st->needs_texcoord_semantic);
 390 }
 391
 392 extern void
 393 st_set_prog_affected_state_flags(struct gl_program *prog);
 394
 395 extern struct st_vp_variant *
 396 st_get_vp_variant(struct st_context *st,
 397                   struct st_vertex_program *stvp,
 398                   const struct st_vp_variant_key *key);
 399
 400
 401 extern struct st_fp_variant *
 402 st_get_fp_variant(struct st_context *st,
 403                   struct st_fragment_program *stfp,
 404                   const struct st_fp_variant_key *key);
 405
 406 extern struct st_basic_variant *
 407 st_get_basic_variant(struct st_context *st,
 408                      struct st_common_program *p,
 409                      const struct st_basic_variant_key *key);
 410
 411 extern void
 412 st_release_vp_variants( struct st_context *st,
 413                         struct st_vertex_program *stvp );
 414
 415 extern void
 416 st_release_fp_variants( struct st_context *st,
 417                         struct st_fragment_program *stfp );
 418
 419 extern void
 420 st_release_basic_variants(struct st_context *st, struct st_common_program *p);
 421
 422 extern void
 423 st_destroy_program_variants(struct st_context *st);
 424
 425 extern void
 426 st_prepare_vertex_program(struct st_vertex_program *stvp);
 427
 428 extern void
 429 st_translate_stream_output_info(struct gl_program *prog);
 430
 431 extern bool
 432 st_translate_vertex_program(struct st_context *st,
 433                             struct st_vertex_program *stvp);
 434
 435 extern bool
 436 st_translate_fragment_program(struct st_context *st,
 437                               struct st_fragment_program *stfp);
 438
 439 extern bool
 440 st_translate_common_program(struct st_context *st,
 441                             struct st_common_program *stcp);
 442
 443 extern void
 444 st_print_current_vertex_program(void);
 445
 446 extern void
 447 st_precompile_shader_variant(struct st_context *st,
 448                              struct gl_program *prog);
 449
 450 #ifdef __cplusplus
 451 }
 452 #endif
 453
 454 #endif