src/mesa/drivers/dri/i965/brw_context.h

   1 /*
   2  Copyright (C) Intel Corp.  2006.  All Rights Reserved.
   3  Intel funded Tungsten Graphics (http://www.tungstengraphics.com) to
   4  develop this 3D driver.
   5
   6  Permission is hereby granted, free of charge, to any person obtaining
   7  a 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, sublicense, 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
  16  portions of the Software.
  17
  18  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  19  EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  20  MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
  21  IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
  22  LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  23  OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  24  WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25
  26  **********************************************************************/
  27  /*
  28   * Authors:
  29   *   Keith Whitwell <keith@tungstengraphics.com>
  30   */
  31
  32
  33 #ifndef BRWCONTEXT_INC
  34 #define BRWCONTEXT_INC
  35
  36 #include "intel_context.h"
  37 #include "brw_structs.h"
  38 #include "main/imports.h"
  39
  40
  41 /* Glossary:
  42  *
  43  * URB - uniform resource buffer.  A mid-sized buffer which is
  44  * partitioned between the fixed function units and used for passing
  45  * values (vertices, primitives, constants) between them.
  46  *
  47  * CURBE - constant URB entry.  An urb region (entry) used to hold
  48  * constant values which the fixed function units can be instructed to
  49  * preload into the GRF when spawning a thread.
  50  *
  51  * VUE - vertex URB entry.  An urb entry holding a vertex and usually
  52  * a vertex header.  The header contains control information and
  53  * things like primitive type, Begin/end flags and clip codes.
  54  *
  55  * PUE - primitive URB entry.  An urb entry produced by the setup (SF)
  56  * unit holding rasterization and interpolation parameters.
  57  *
  58  * GRF - general register file.  One of several register files
  59  * addressable by programmed threads.  The inputs (r0, payload, curbe,
  60  * urb) of the thread are preloaded to this area before the thread is
  61  * spawned.  The registers are individually 8 dwords wide and suitable
  62  * for general usage.  Registers holding thread input values are not
  63  * special and may be overwritten.
  64  *
  65  * MRF - message register file.  Threads communicate (and terminate)
  66  * by sending messages.  Message parameters are placed in contiguous
  67  * MRF registers.  All program output is via these messages.  URB
  68  * entries are populated by sending a message to the shared URB
  69  * function containing the new data, together with a control word,
  70  * often an unmodified copy of R0.
  71  *
  72  * R0 - GRF register 0.  Typically holds control information used when
  73  * sending messages to other threads.
  74  *
  75  * EU or GEN4 EU: The name of the programmable subsystem of the
  76  * i965 hardware.  Threads are executed by the EU, the registers
  77  * described above are part of the EU architecture.
  78  *
  79  * Fixed function units:
  80  *
  81  * CS - Command streamer.  Notional first unit, little software
  82  * interaction.  Holds the URB entries used for constant data, ie the
  83  * CURBEs.
  84  *
  85  * VF/VS - Vertex Fetch / Vertex Shader.  The fixed function part of
  86  * this unit is responsible for pulling vertices out of vertex buffers
  87  * in vram and injecting them into the processing pipe as VUEs.  If
  88  * enabled, it first passes them to a VS thread which is a good place
  89  * for the driver to implement any active vertex shader.
  90  *
  91  * GS - Geometry Shader.  This corresponds to a new DX10 concept.  If
  92  * enabled, incoming strips etc are passed to GS threads in individual
  93  * line/triangle/point units.  The GS thread may perform arbitary
  94  * computation and emit whatever primtives with whatever vertices it
  95  * chooses.  This makes GS an excellent place to implement GL's
  96  * unfilled polygon modes, though of course it is capable of much
  97  * more.  Additionally, GS is used to translate away primitives not
  98  * handled by latter units, including Quads and Lineloops.
  99  *
 100  * CS - Clipper.  Mesa's clipping algorithms are imported to run on
 101  * this unit.  The fixed function part performs cliptesting against
 102  * the 6 fixed clipplanes and makes descisions on whether or not the
 103  * incoming primitive needs to be passed to a thread for clipping.
 104  * User clip planes are handled via cooperation with the VS thread.
 105  *
 106  * SF - Strips Fans or Setup: Triangles are prepared for
 107  * rasterization.  Interpolation coefficients are calculated.
 108  * Flatshading and two-side lighting usually performed here.
 109  *
 110  * WM - Windower.  Interpolation of vertex attributes performed here.
 111  * Fragment shader implemented here.  SIMD aspects of EU taken full
 112  * advantage of, as pixels are processed in blocks of 16.
 113  *
 114  * CC - Color Calculator.  No EU threads associated with this unit.
 115  * Handles blending and (presumably) depth and stencil testing.
 116  */
 117
 118 #define BRW_FALLBACK_TEXTURE             0x1
 119 #define BRW_MAX_CURBE                    (32*16)
 120
 121 struct brw_context;
 122
 123 #define BRW_NEW_URB_FENCE               0x1
 124 #define BRW_NEW_FRAGMENT_PROGRAM        0x2
 125 #define BRW_NEW_VERTEX_PROGRAM          0x4
 126 #define BRW_NEW_INPUT_DIMENSIONS        0x8
 127 #define BRW_NEW_CURBE_OFFSETS           0x10
 128 #define BRW_NEW_REDUCED_PRIMITIVE       0x20
 129 #define BRW_NEW_PRIMITIVE               0x40
 130 #define BRW_NEW_CONTEXT                 0x80
 131 #define BRW_NEW_WM_INPUT_DIMENSIONS     0x100
 132 #define BRW_NEW_INPUT_VARYING           0x200
 133 #define BRW_NEW_PSP                     0x800
 134 #define BRW_NEW_WM_SURFACES             0x1000
 135 #define BRW_NEW_FENCE                   0x2000
 136 #define BRW_NEW_INDICES                 0x4000
 137 #define BRW_NEW_VERTICES                0x8000
 138 /**
 139  * Used for any batch entry with a relocated pointer that will be used
 140  * by any 3D rendering.
 141  */
 142 #define BRW_NEW_BATCH                   0x10000
 143 /** brw->depth_region updated */
 144 #define BRW_NEW_DEPTH_BUFFER            0x20000
 145 #define BRW_NEW_NR_WM_SURFACES          0x40000
 146 #define BRW_NEW_NR_VS_SURFACES          0x80000
 147
 148 struct brw_state_flags {
 149    /** State update flags signalled by mesa internals */
 150    GLuint mesa;
 151    /**
 152     * State update flags signalled as the result of brw_tracked_state updates
 153     */
 154    GLuint brw;
 155    /** State update flags signalled by brw_state_cache.c searches */
 156    GLuint cache;
 157 };
 158
 159
 160 /** Subclass of Mesa vertex program */
 161 struct brw_vertex_program {
 162    struct gl_vertex_program program;
 163    GLuint id;
 164    dri_bo *const_buffer;    /** Program constant buffer/surface */
 165    GLboolean use_const_buffer;
 166 };
 167
 168
 169 /** Subclass of Mesa fragment program */
 170 struct brw_fragment_program {
 171    struct gl_fragment_program program;
 172    GLuint id;  /**< serial no. to identify frag progs, never re-used */
 173    GLboolean isGLSL;  /**< really, any IF/LOOP/CONT/BREAK instructions */
 174
 175    dri_bo *const_buffer;    /** Program constant buffer/surface */
 176    GLboolean use_const_buffer;
 177 };
 178
 179
 180 /* Data about a particular attempt to compile a program.  Note that
 181  * there can be many of these, each in a different GL state
 182  * corresponding to a different brw_wm_prog_key struct, with different
 183  * compiled programs:
 184  */
 185 struct brw_wm_prog_data {
 186    GLuint curb_read_length;
 187    GLuint urb_read_length;
 188
 189    GLuint first_curbe_grf;
 190    GLuint total_grf;
 191    GLuint total_scratch;
 192
 193    GLuint nr_params;       /**< number of float params/constants */
 194    GLboolean error;
 195
 196    /* Pointer to tracked values (only valid once
 197     * _mesa_load_state_parameters has been called at runtime).
 198     */
 199    const GLfloat *param[BRW_MAX_CURBE];
 200 };
 201
 202 struct brw_sf_prog_data {
 203    GLuint urb_read_length;
 204    GLuint total_grf;
 205
 206    /* Each vertex may have upto 12 attributes, 4 components each,
 207     * except WPOS which requires only 2.  (11*4 + 2) == 44 ==> 11
 208     * rows.
 209     *
 210     * Actually we use 4 for each, so call it 12 rows.
 211     */
 212    GLuint urb_entry_size;
 213 };
 214
 215 struct brw_clip_prog_data {
 216    GLuint curb_read_length;     /* user planes? */
 217    GLuint clip_mode;
 218    GLuint urb_read_length;
 219    GLuint total_grf;
 220 };
 221
 222 struct brw_gs_prog_data {
 223    GLuint urb_read_length;
 224    GLuint total_grf;
 225 };
 226
 227 struct brw_vs_prog_data {
 228    GLuint curb_read_length;
 229    GLuint urb_read_length;
 230    GLuint total_grf;
 231    GLuint outputs_written;
 232    GLuint nr_params;       /**< number of float params/constants */
 233
 234    GLuint inputs_read;
 235
 236    /* Used for calculating urb partitions:
 237     */
 238    GLuint urb_entry_size;
 239 };
 240
 241
 242 /* Size == 0 if output either not written, or always [0,0,0,1]
 243  */
 244 struct brw_vs_ouput_sizes {
 245    GLubyte output_size[VERT_RESULT_MAX];
 246 };
 247
 248
 249 /** Number of texture sampler units */
 250 #define BRW_MAX_TEX_UNIT 16
 251
 252 /**
 253  * Size of our surface binding table for the WM.
 254  * This contains pointers to the drawing surfaces and current texture
 255  * objects and shader constant buffers (+2).
 256  */
 257 #define BRW_WM_MAX_SURF (MAX_DRAW_BUFFERS + BRW_MAX_TEX_UNIT + 1)
 258
 259 /**
 260  * Helpers to convert drawing buffers, textures and constant buffers
 261  * to surface binding table indexes, for WM.
 262  */
 263 #define SURF_INDEX_DRAW(d)           (d)
 264 #define SURF_INDEX_FRAG_CONST_BUFFER (MAX_DRAW_BUFFERS)
 265 #define SURF_INDEX_TEXTURE(t)        (MAX_DRAW_BUFFERS + 1 + (t))
 266
 267 /**
 268  * Size of surface binding table for the VS.
 269  * Only one constant buffer for now.
 270  */
 271 #define BRW_VS_MAX_SURF 1
 272
 273 /**
 274  * Only a VS constant buffer
 275  */
 276 #define SURF_INDEX_VERT_CONST_BUFFER 0
 277
 278
 279 enum brw_cache_id {
 280    BRW_CC_VP,
 281    BRW_CC_UNIT,
 282    BRW_WM_PROG,
 283    BRW_SAMPLER_DEFAULT_COLOR,
 284    BRW_SAMPLER,
 285    BRW_WM_UNIT,
 286    BRW_SF_PROG,
 287    BRW_SF_VP,
 288    BRW_SF_UNIT,
 289    BRW_VS_UNIT,
 290    BRW_VS_PROG,
 291    BRW_GS_UNIT,
 292    BRW_GS_PROG,
 293    BRW_CLIP_VP,
 294    BRW_CLIP_UNIT,
 295    BRW_CLIP_PROG,
 296    BRW_SS_SURFACE,
 297    BRW_SS_SURF_BIND,
 298
 299    BRW_MAX_CACHE
 300 };
 301
 302 struct brw_cache_item {
 303    /**
 304     * Effectively part of the key, cache_id identifies what kind of state
 305     * buffer is involved, and also which brw->state.dirty.cache flag should
 306     * be set when this cache item is chosen.
 307     */
 308    enum brw_cache_id cache_id;
 309    /** 32-bit hash of the key data */
 310    GLuint hash;
 311    GLuint key_size;             /* for variable-sized keys */
 312    const void *key;
 313    dri_bo **reloc_bufs;
 314    GLuint nr_reloc_bufs;
 315
 316    dri_bo *bo;
 317    GLuint data_size;
 318
 319    struct brw_cache_item *next;
 320 };
 321
 322
 323
 324 struct brw_cache {
 325    struct brw_context *brw;
 326
 327    struct brw_cache_item **items;
 328    GLuint size, n_items;
 329
 330    GLuint key_size[BRW_MAX_CACHE];              /* for fixed-size keys */
 331    GLuint aux_size[BRW_MAX_CACHE];
 332    char *name[BRW_MAX_CACHE];
 333
 334    /* Record of the last BOs chosen for each cache_id.  Used to set
 335     * brw->state.dirty.cache when a new cache item is chosen.
 336     */
 337    dri_bo *last_bo[BRW_MAX_CACHE];
 338 };
 339
 340
 341 /* Considered adding a member to this struct to document which flags
 342  * an update might raise so that ordering of the state atoms can be
 343  * checked or derived at runtime.  Dropped the idea in favor of having
 344  * a debug mode where the state is monitored for flags which are
 345  * raised that have already been tested against.
 346  */
 347 struct brw_tracked_state {
 348    struct brw_state_flags dirty;
 349    void (*prepare)( struct brw_context *brw );
 350    void (*emit)( struct brw_context *brw );
 351 };
 352
 353 /* Flags for brw->state.cache.
 354  */
 355 #define CACHE_NEW_CC_VP                  (1<<BRW_CC_VP)
 356 #define CACHE_NEW_CC_UNIT                (1<<BRW_CC_UNIT)
 357 #define CACHE_NEW_WM_PROG                (1<<BRW_WM_PROG)
 358 #define CACHE_NEW_SAMPLER_DEFAULT_COLOR  (1<<BRW_SAMPLER_DEFAULT_COLOR)
 359 #define CACHE_NEW_SAMPLER                (1<<BRW_SAMPLER)
 360 #define CACHE_NEW_WM_UNIT                (1<<BRW_WM_UNIT)
 361 #define CACHE_NEW_SF_PROG                (1<<BRW_SF_PROG)
 362 #define CACHE_NEW_SF_VP                  (1<<BRW_SF_VP)
 363 #define CACHE_NEW_SF_UNIT                (1<<BRW_SF_UNIT)
 364 #define CACHE_NEW_VS_UNIT                (1<<BRW_VS_UNIT)
 365 #define CACHE_NEW_VS_PROG                (1<<BRW_VS_PROG)
 366 #define CACHE_NEW_GS_UNIT                (1<<BRW_GS_UNIT)
 367 #define CACHE_NEW_GS_PROG                (1<<BRW_GS_PROG)
 368 #define CACHE_NEW_CLIP_VP                (1<<BRW_CLIP_VP)
 369 #define CACHE_NEW_CLIP_UNIT              (1<<BRW_CLIP_UNIT)
 370 #define CACHE_NEW_CLIP_PROG              (1<<BRW_CLIP_PROG)
 371 #define CACHE_NEW_SURFACE                (1<<BRW_SS_SURFACE)
 372 #define CACHE_NEW_SURF_BIND              (1<<BRW_SS_SURF_BIND)
 373
 374 struct brw_cached_batch_item {
 375    struct header *header;
 376    GLuint sz;
 377    struct brw_cached_batch_item *next;
 378 };
 379
 380
 381
 382 /* Protect against a future where VERT_ATTRIB_MAX > 32.  Wouldn't life
 383  * be easier if C allowed arrays of packed elements?
 384  */
 385 #define ATTRIB_BIT_DWORDS  ((VERT_ATTRIB_MAX+31)/32)
 386
 387 struct brw_vertex_element {
 388    const struct gl_client_array *glarray;
 389
 390    /** Size of a complete element */
 391    GLuint element_size;
 392    /** Number of uploaded elements for this input. */
 393    GLuint count;
 394    /** Byte stride between elements in the uploaded array */
 395    GLuint stride;
 396    /** Offset of the first element within the buffer object */
 397    unsigned int offset;
 398    /** Buffer object containing the uploaded vertex data */
 399    dri_bo *bo;
 400 };
 401
 402
 403
 404 struct brw_vertex_info {
 405    GLuint varying;  /* varying:1[VERT_ATTRIB_MAX] */
 406    GLuint sizes[ATTRIB_BIT_DWORDS * 2]; /* sizes:2[VERT_ATTRIB_MAX] */
 407 };
 408
 409
 410
 411
 412 /* Cache for TNL programs.
 413  */
 414 struct brw_tnl_cache_item {
 415    GLuint hash;
 416    void *key;
 417    void *data;
 418    struct brw_tnl_cache_item *next;
 419 };
 420
 421 struct brw_tnl_cache {
 422    struct brw_tnl_cache_item **items;
 423    GLuint size, n_items;
 424 };
 425
 426 struct brw_query_object {
 427    struct gl_query_object Base;
 428
 429    /** Doubly linked list of active query objects in the context. */
 430    struct brw_query_object *prev, *next;
 431
 432    /** Last query BO associated with this query. */
 433    dri_bo *bo;
 434    /** First index in bo with query data for this object. */
 435    int first_index;
 436    /** Last index in bo with query data for this object. */
 437    int last_index;
 438
 439    /* Total count of pixels from previous BOs */
 440    unsigned int count;
 441 };
 442
 443 struct brw_context
 444 {
 445    struct intel_context intel;
 446    GLuint primitive;
 447
 448    GLboolean emit_state_always;
 449    GLboolean tmp_fallback;
 450    GLboolean no_batch_wrap;
 451
 452    struct {
 453       struct brw_state_flags dirty;
 454
 455       GLuint nr_color_regions;
 456       struct intel_region *color_regions[MAX_DRAW_BUFFERS];
 457       struct intel_region *depth_region;
 458
 459       /**
 460        * List of buffers accumulated in brw_validate_state to receive
 461        * dri_bo_check_aperture treatment before exec, so we can know if we
 462        * should flush the batch and try again before emitting primitives.
 463        *
 464        * This can be a fixed number as we only have a limited number of
 465        * objects referenced from the batchbuffer in a primitive emit,
 466        * consisting of the vertex buffers, pipelined state pointers,
 467        * the CURBE, the depth buffer, and a query BO.
 468        */
 469       dri_bo *validated_bos[VERT_ATTRIB_MAX + 16];
 470       int validated_bo_count;
 471    } state;
 472
 473    struct brw_cache cache;  /** non-surface items */
 474    struct brw_cache surface_cache;  /* surface items */
 475    struct brw_cached_batch_item *cached_batch_items;
 476
 477    struct {
 478       struct brw_vertex_element inputs[VERT_ATTRIB_MAX];
 479
 480 #define BRW_NR_UPLOAD_BUFS 17
 481 #define BRW_UPLOAD_INIT_SIZE (128*1024)
 482
 483       struct {
 484          dri_bo *bo;
 485          GLuint offset;
 486       } upload;
 487
 488       /* Summary of size and varying of active arrays, so we can check
 489        * for changes to this state:
 490        */
 491       struct brw_vertex_info info;
 492       unsigned int min_index, max_index;
 493    } vb;
 494
 495    struct {
 496       /**
 497        * Index buffer for this draw_prims call.
 498        *
 499        * Updates are signaled by BRW_NEW_INDICES.
 500        */
 501       const struct _mesa_index_buffer *ib;
 502
 503       dri_bo *bo;
 504       unsigned int offset;
 505    } ib;
 506
 507    /* Active vertex program:
 508     */
 509    const struct gl_vertex_program *vertex_program;
 510    const struct gl_fragment_program *fragment_program;
 511
 512
 513    /* For populating the gtt:
 514     */
 515    GLuint next_free_page;
 516
 517
 518    /* BRW_NEW_URB_ALLOCATIONS:
 519     */
 520    struct {
 521       GLuint vsize;             /* vertex size plus header in urb registers */
 522       GLuint csize;             /* constant buffer size in urb registers */
 523       GLuint sfsize;            /* setup data size in urb registers */
 524
 525       GLboolean constrained;
 526
 527       GLuint nr_vs_entries;
 528       GLuint nr_gs_entries;
 529       GLuint nr_clip_entries;
 530       GLuint nr_sf_entries;
 531       GLuint nr_cs_entries;
 532
 533 /*       GLuint vs_size; */
 534 /*       GLuint gs_size; */
 535 /*       GLuint clip_size; */
 536 /*       GLuint sf_size; */
 537 /*       GLuint cs_size; */
 538
 539       GLuint vs_start;
 540       GLuint gs_start;
 541       GLuint clip_start;
 542       GLuint sf_start;
 543       GLuint cs_start;
 544    } urb;
 545
 546
 547    /* BRW_NEW_CURBE_OFFSETS:
 548     */
 549    struct {
 550       GLuint wm_start;  /**< pos of first wm const in CURBE buffer */
 551       GLuint wm_size;   /**< number of float[4] consts, multiple of 16 */
 552       GLuint clip_start;
 553       GLuint clip_size;
 554       GLuint vs_start;
 555       GLuint vs_size;
 556       GLuint total_size;
 557
 558       dri_bo *curbe_bo;
 559       /** Offset within curbe_bo of space for current curbe entry */
 560       GLuint curbe_offset;
 561       /** Offset within curbe_bo of space for next curbe entry */
 562       GLuint curbe_next_offset;
 563
 564       GLfloat *last_buf;
 565       GLuint last_bufsz;
 566       /**
 567        *  Whether we should create a new bo instead of reusing the old one
 568        * (if we just dispatch the batch pointing at the old one.
 569        */
 570       GLboolean need_new_bo;
 571    } curbe;
 572
 573    struct {
 574       struct brw_vs_prog_data *prog_data;
 575
 576       dri_bo *prog_bo;
 577       dri_bo *state_bo;
 578
 579       /** Binding table of pointers to surf_bo entries */
 580       dri_bo *bind_bo;
 581       dri_bo *surf_bo[BRW_VS_MAX_SURF];
 582       GLuint nr_surfaces;
 583    } vs;
 584
 585    struct {
 586       struct brw_gs_prog_data *prog_data;
 587
 588       GLboolean prog_active;
 589       dri_bo *prog_bo;
 590       dri_bo *state_bo;
 591    } gs;
 592
 593    struct {
 594       struct brw_clip_prog_data *prog_data;
 595
 596       dri_bo *prog_bo;
 597       dri_bo *state_bo;
 598       dri_bo *vp_bo;
 599    } clip;
 600
 601
 602    struct {
 603       struct brw_sf_prog_data *prog_data;
 604
 605       dri_bo *prog_bo;
 606       dri_bo *state_bo;
 607       dri_bo *vp_bo;
 608    } sf;
 609
 610    struct {
 611       struct brw_wm_prog_data *prog_data;
 612       struct brw_wm_compile *compile_data;
 613
 614       /** Input sizes, calculated from active vertex program.
 615        * One bit per fragment program input attribute.
 616        */
 617       GLbitfield input_size_masks[4];
 618
 619       /** Array of surface default colors (texture border color) */
 620       dri_bo *sdc_bo[BRW_MAX_TEX_UNIT];
 621
 622       GLuint render_surf;
 623       GLuint nr_surfaces;
 624
 625       GLuint max_threads;
 626       dri_bo *scratch_bo;
 627
 628       GLuint sampler_count;
 629       dri_bo *sampler_bo;
 630
 631       /** Binding table of pointers to surf_bo entries */
 632       dri_bo *bind_bo;
 633       dri_bo *surf_bo[BRW_WM_MAX_SURF];
 634
 635       dri_bo *prog_bo;
 636       dri_bo *state_bo;
 637    } wm;
 638
 639
 640    struct {
 641       dri_bo *prog_bo;
 642       dri_bo *state_bo;
 643       dri_bo *vp_bo;
 644    } cc;
 645
 646    struct {
 647       struct brw_query_object active_head;
 648       dri_bo *bo;
 649       int index;
 650       GLboolean active;
 651    } query;
 652    /* Used to give every program string a unique id
 653     */
 654    GLuint program_id;
 655 };
 656
 657
 658 #define BRW_PACKCOLOR8888(r,g,b,a)  ((r<<24) | (g<<16) | (b<<8) | a)
 659
 660
 661
 662 /*======================================================================
 663  * brw_vtbl.c
 664  */
 665 void brwInitVtbl( struct brw_context *brw );
 666
 667 /*======================================================================
 668  * brw_context.c
 669  */
 670 GLboolean brwCreateContext( const __GLcontextModes *mesaVis,
 671                             __DRIcontextPrivate *driContextPriv,
 672                             void *sharedContextPrivate);
 673
 674 /*======================================================================
 675  * brw_queryobj.c
 676  */
 677 void brw_init_queryobj_functions(struct dd_function_table *functions);
 678 void brw_prepare_query_begin(struct brw_context *brw);
 679 void brw_emit_query_begin(struct brw_context *brw);
 680 void brw_emit_query_end(struct brw_context *brw);
 681
 682 /*======================================================================
 683  * brw_state_dump.c
 684  */
 685 void brw_debug_batch(struct intel_context *intel);
 686
 687 /*======================================================================
 688  * brw_tex.c
 689  */
 690 void brwUpdateTextureState( struct intel_context *intel );
 691 void brw_FrameBufferTexInit( struct brw_context *brw,
 692                              struct intel_region *region );
 693 void brw_FrameBufferTexDestroy( struct brw_context *brw );
 694 void brw_validate_textures( struct brw_context *brw );
 695
 696
 697 /*======================================================================
 698  * brw_program.c
 699  */
 700 void brwInitFragProgFuncs( struct dd_function_table *functions );
 701
 702
 703 /* brw_urb.c
 704  */
 705 void brw_upload_urb_fence(struct brw_context *brw);
 706
 707 /* brw_curbe.c
 708  */
 709 void brw_upload_cs_urb_state(struct brw_context *brw);
 710
 711
 712 /*======================================================================
 713  * Inline conversion functions.  These are better-typed than the
 714  * macros used previously:
 715  */
 716 static INLINE struct brw_context *
 717 brw_context( GLcontext *ctx )
 718 {
 719    return (struct brw_context *)ctx;
 720 }
 721
 722 static INLINE struct brw_vertex_program *
 723 brw_vertex_program(struct gl_vertex_program *p)
 724 {
 725    return (struct brw_vertex_program *) p;
 726 }
 727
 728 static INLINE const struct brw_vertex_program *
 729 brw_vertex_program_const(const struct gl_vertex_program *p)
 730 {
 731    return (const struct brw_vertex_program *) p;
 732 }
 733
 734 static INLINE struct brw_fragment_program *
 735 brw_fragment_program(struct gl_fragment_program *p)
 736 {
 737    return (struct brw_fragment_program *) p;
 738 }
 739
 740 static INLINE const struct brw_fragment_program *
 741 brw_fragment_program_const(const struct gl_fragment_program *p)
 742 {
 743    return (const struct brw_fragment_program *) p;
 744 }
 745
 746
 747
 748 #define DO_SETUP_BITS ((1<<(FRAG_ATTRIB_MAX)) - 1)
 749
 750 #endif
 751