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_FENCE                   0x2000
 135 #define BRW_NEW_INDICES                 0x4000
 136 #define BRW_NEW_VERTICES                0x8000
 137 /**
 138  * Used for any batch entry with a relocated pointer that will be used
 139  * by any 3D rendering.
 140  */
 141 #define BRW_NEW_BATCH                   0x10000
 142 /** brw->depth_region updated */
 143 #define BRW_NEW_DEPTH_BUFFER            0x20000
 144 #define BRW_NEW_NR_WM_SURFACES          0x40000
 145 #define BRW_NEW_NR_VS_SURFACES          0x80000
 146
 147 struct brw_state_flags {
 148    /** State update flags signalled by mesa internals */
 149    GLuint mesa;
 150    /**
 151     * State update flags signalled as the result of brw_tracked_state updates
 152     */
 153    GLuint brw;
 154    /** State update flags signalled by brw_state_cache.c searches */
 155    GLuint cache;
 156 };
 157
 158
 159 /** Subclass of Mesa vertex program */
 160 struct brw_vertex_program {
 161    struct gl_vertex_program program;
 162    GLuint id;
 163    dri_bo *const_buffer;    /** Program constant buffer/surface */
 164    GLboolean use_const_buffer;
 165 };
 166
 167
 168 /** Subclass of Mesa fragment program */
 169 struct brw_fragment_program {
 170    struct gl_fragment_program program;
 171    GLuint id;  /**< serial no. to identify frag progs, never re-used */
 172    GLboolean isGLSL;  /**< really, any IF/LOOP/CONT/BREAK instructions */
 173
 174    dri_bo *const_buffer;    /** Program constant buffer/surface */
 175    GLboolean use_const_buffer;
 176 };
 177
 178
 179 /* Data about a particular attempt to compile a program.  Note that
 180  * there can be many of these, each in a different GL state
 181  * corresponding to a different brw_wm_prog_key struct, with different
 182  * compiled programs:
 183  */
 184 struct brw_wm_prog_data {
 185    GLuint curb_read_length;
 186    GLuint urb_read_length;
 187
 188    GLuint first_curbe_grf;
 189    GLuint total_grf;
 190    GLuint total_scratch;
 191
 192    GLuint nr_params;       /**< number of float params/constants */
 193    GLboolean error;
 194
 195    /* Pointer to tracked values (only valid once
 196     * _mesa_load_state_parameters has been called at runtime).
 197     */
 198    const GLfloat *param[BRW_MAX_CURBE];
 199 };
 200
 201 struct brw_sf_prog_data {
 202    GLuint urb_read_length;
 203    GLuint total_grf;
 204
 205    /* Each vertex may have upto 12 attributes, 4 components each,
 206     * except WPOS which requires only 2.  (11*4 + 2) == 44 ==> 11
 207     * rows.
 208     *
 209     * Actually we use 4 for each, so call it 12 rows.
 210     */
 211    GLuint urb_entry_size;
 212 };
 213
 214 struct brw_clip_prog_data {
 215    GLuint curb_read_length;     /* user planes? */
 216    GLuint clip_mode;
 217    GLuint urb_read_length;
 218    GLuint total_grf;
 219 };
 220
 221 struct brw_gs_prog_data {
 222    GLuint urb_read_length;
 223    GLuint total_grf;
 224 };
 225
 226 struct brw_vs_prog_data {
 227    GLuint curb_read_length;
 228    GLuint urb_read_length;
 229    GLuint total_grf;
 230    GLuint outputs_written;
 231    GLuint nr_params;       /**< number of float params/constants */
 232
 233    GLuint inputs_read;
 234
 235    /* Used for calculating urb partitions:
 236     */
 237    GLuint urb_entry_size;
 238 };
 239
 240
 241 /* Size == 0 if output either not written, or always [0,0,0,1]
 242  */
 243 struct brw_vs_ouput_sizes {
 244    GLubyte output_size[VERT_RESULT_MAX];
 245 };
 246
 247
 248 /** Number of texture sampler units */
 249 #define BRW_MAX_TEX_UNIT 16
 250
 251 /**
 252  * Size of our surface binding table for the WM.
 253  * This contains pointers to the drawing surfaces and current texture
 254  * objects and shader constant buffers (+2).
 255  */
 256 #define BRW_WM_MAX_SURF (MAX_DRAW_BUFFERS + BRW_MAX_TEX_UNIT + 1)
 257
 258 /**
 259  * Helpers to convert drawing buffers, textures and constant buffers
 260  * to surface binding table indexes, for WM.
 261  */
 262 #define SURF_INDEX_DRAW(d)           (d)
 263 #define SURF_INDEX_FRAG_CONST_BUFFER (MAX_DRAW_BUFFERS)
 264 #define SURF_INDEX_TEXTURE(t)        (MAX_DRAW_BUFFERS + 1 + (t))
 265
 266 /**
 267  * Size of surface binding table for the VS.
 268  * Only one constant buffer for now.
 269  */
 270 #define BRW_VS_MAX_SURF 1
 271
 272 /**
 273  * Only a VS constant buffer
 274  */
 275 #define SURF_INDEX_VERT_CONST_BUFFER 0
 276
 277
 278 enum brw_cache_id {
 279    BRW_CC_VP,
 280    BRW_CC_UNIT,
 281    BRW_WM_PROG,
 282    BRW_SAMPLER_DEFAULT_COLOR,
 283    BRW_SAMPLER,
 284    BRW_WM_UNIT,
 285    BRW_SF_PROG,
 286    BRW_SF_VP,
 287    BRW_SF_UNIT,
 288    BRW_VS_UNIT,
 289    BRW_VS_PROG,
 290    BRW_GS_UNIT,
 291    BRW_GS_PROG,
 292    BRW_CLIP_VP,
 293    BRW_CLIP_UNIT,
 294    BRW_CLIP_PROG,
 295    BRW_SS_SURFACE,
 296    BRW_SS_SURF_BIND,
 297
 298    BRW_MAX_CACHE
 299 };
 300
 301 struct brw_cache_item {
 302    /**
 303     * Effectively part of the key, cache_id identifies what kind of state
 304     * buffer is involved, and also which brw->state.dirty.cache flag should
 305     * be set when this cache item is chosen.
 306     */
 307    enum brw_cache_id cache_id;
 308    /** 32-bit hash of the key data */
 309    GLuint hash;
 310    GLuint key_size;             /* for variable-sized keys */
 311    const void *key;
 312    dri_bo **reloc_bufs;
 313    GLuint nr_reloc_bufs;
 314
 315    dri_bo *bo;
 316    GLuint data_size;
 317
 318    struct brw_cache_item *next;
 319 };
 320
 321
 322
 323 struct brw_cache {
 324    struct brw_context *brw;
 325
 326    struct brw_cache_item **items;
 327    GLuint size, n_items;
 328
 329    GLuint key_size[BRW_MAX_CACHE];              /* for fixed-size keys */
 330    GLuint aux_size[BRW_MAX_CACHE];
 331    char *name[BRW_MAX_CACHE];
 332
 333    /* Record of the last BOs chosen for each cache_id.  Used to set
 334     * brw->state.dirty.cache when a new cache item is chosen.
 335     */
 336    dri_bo *last_bo[BRW_MAX_CACHE];
 337 };
 338
 339
 340 /* Considered adding a member to this struct to document which flags
 341  * an update might raise so that ordering of the state atoms can be
 342  * checked or derived at runtime.  Dropped the idea in favor of having
 343  * a debug mode where the state is monitored for flags which are
 344  * raised that have already been tested against.
 345  */
 346 struct brw_tracked_state {
 347    struct brw_state_flags dirty;
 348    void (*prepare)( struct brw_context *brw );
 349    void (*emit)( struct brw_context *brw );
 350 };
 351
 352 /* Flags for brw->state.cache.
 353  */
 354 #define CACHE_NEW_CC_VP                  (1<<BRW_CC_VP)
 355 #define CACHE_NEW_CC_UNIT                (1<<BRW_CC_UNIT)
 356 #define CACHE_NEW_WM_PROG                (1<<BRW_WM_PROG)
 357 #define CACHE_NEW_SAMPLER_DEFAULT_COLOR  (1<<BRW_SAMPLER_DEFAULT_COLOR)
 358 #define CACHE_NEW_SAMPLER                (1<<BRW_SAMPLER)
 359 #define CACHE_NEW_WM_UNIT                (1<<BRW_WM_UNIT)
 360 #define CACHE_NEW_SF_PROG                (1<<BRW_SF_PROG)
 361 #define CACHE_NEW_SF_VP                  (1<<BRW_SF_VP)
 362 #define CACHE_NEW_SF_UNIT                (1<<BRW_SF_UNIT)
 363 #define CACHE_NEW_VS_UNIT                (1<<BRW_VS_UNIT)
 364 #define CACHE_NEW_VS_PROG                (1<<BRW_VS_PROG)
 365 #define CACHE_NEW_GS_UNIT                (1<<BRW_GS_UNIT)
 366 #define CACHE_NEW_GS_PROG                (1<<BRW_GS_PROG)
 367 #define CACHE_NEW_CLIP_VP                (1<<BRW_CLIP_VP)
 368 #define CACHE_NEW_CLIP_UNIT              (1<<BRW_CLIP_UNIT)
 369 #define CACHE_NEW_CLIP_PROG              (1<<BRW_CLIP_PROG)
 370 #define CACHE_NEW_SURFACE                (1<<BRW_SS_SURFACE)
 371 #define CACHE_NEW_SURF_BIND              (1<<BRW_SS_SURF_BIND)
 372
 373 struct brw_cached_batch_item {
 374    struct header *header;
 375    GLuint sz;
 376    struct brw_cached_batch_item *next;
 377 };
 378
 379
 380
 381 /* Protect against a future where VERT_ATTRIB_MAX > 32.  Wouldn't life
 382  * be easier if C allowed arrays of packed elements?
 383  */
 384 #define ATTRIB_BIT_DWORDS  ((VERT_ATTRIB_MAX+31)/32)
 385
 386 struct brw_vertex_element {
 387    const struct gl_client_array *glarray;
 388
 389    /** Size of a complete element */
 390    GLuint element_size;
 391    /** Number of uploaded elements for this input. */
 392    GLuint count;
 393    /** Byte stride between elements in the uploaded array */
 394    GLuint stride;
 395    /** Offset of the first element within the buffer object */
 396    unsigned int offset;
 397    /** Buffer object containing the uploaded vertex data */
 398    dri_bo *bo;
 399 };
 400
 401
 402
 403 struct brw_vertex_info {
 404    GLuint varying;  /* varying:1[VERT_ATTRIB_MAX] */
 405    GLuint sizes[ATTRIB_BIT_DWORDS * 2]; /* sizes:2[VERT_ATTRIB_MAX] */
 406 };
 407
 408
 409
 410
 411 /* Cache for TNL programs.
 412  */
 413 struct brw_tnl_cache_item {
 414    GLuint hash;
 415    void *key;
 416    void *data;
 417    struct brw_tnl_cache_item *next;
 418 };
 419
 420 struct brw_tnl_cache {
 421    struct brw_tnl_cache_item **items;
 422    GLuint size, n_items;
 423 };
 424
 425 struct brw_query_object {
 426    struct gl_query_object Base;
 427
 428    /** Doubly linked list of active query objects in the context. */
 429    struct brw_query_object *prev, *next;
 430
 431    /** Last query BO associated with this query. */
 432    dri_bo *bo;
 433    /** First index in bo with query data for this object. */
 434    int first_index;
 435    /** Last index in bo with query data for this object. */
 436    int last_index;
 437
 438    /* Total count of pixels from previous BOs */
 439    unsigned int count;
 440 };
 441
 442 struct brw_context
 443 {
 444    struct intel_context intel;
 445    GLuint primitive;
 446
 447    GLboolean emit_state_always;
 448    GLboolean tmp_fallback;
 449    GLboolean no_batch_wrap;
 450
 451    struct {
 452       struct brw_state_flags dirty;
 453       struct brw_tracked_state **atoms;
 454       GLuint nr_atoms;
 455
 456       GLuint nr_color_regions;
 457       struct intel_region *color_regions[MAX_DRAW_BUFFERS];
 458       struct intel_region *depth_region;
 459
 460       /**
 461        * List of buffers accumulated in brw_validate_state to receive
 462        * dri_bo_check_aperture treatment before exec, so we can know if we
 463        * should flush the batch and try again before emitting primitives.
 464        *
 465        * This can be a fixed number as we only have a limited number of
 466        * objects referenced from the batchbuffer in a primitive emit,
 467        * consisting of the vertex buffers, pipelined state pointers,
 468        * the CURBE, the depth buffer, and a query BO.
 469        */
 470       dri_bo *validated_bos[VERT_ATTRIB_MAX + 16];
 471       int validated_bo_count;
 472    } state;
 473
 474    struct brw_cache cache;
 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       /* Dynamic tracker which changes to reflect the state referenced
 559        * by active fp and vp program parameters:
 560        */
 561       struct brw_tracked_state tracked_state;
 562
 563       dri_bo *curbe_bo;
 564       /** Offset within curbe_bo of space for current curbe entry */
 565       GLuint curbe_offset;
 566       /** Offset within curbe_bo of space for next curbe entry */
 567       GLuint curbe_next_offset;
 568
 569       GLfloat *last_buf;
 570       GLuint last_bufsz;
 571       /**
 572        *  Whether we should create a new bo instead of reusing the old one
 573        * (if we just dispatch the batch pointing at the old one.
 574        */
 575       GLboolean need_new_bo;
 576    } curbe;
 577
 578    struct {
 579       struct brw_vs_prog_data *prog_data;
 580
 581       dri_bo *prog_bo;
 582       dri_bo *state_bo;
 583
 584       /** Binding table of pointers to surf_bo entries */
 585       dri_bo *bind_bo;
 586       dri_bo *surf_bo[BRW_VS_MAX_SURF];
 587       GLuint nr_surfaces;
 588    } vs;
 589
 590    struct {
 591       struct brw_gs_prog_data *prog_data;
 592
 593       GLboolean prog_active;
 594       dri_bo *prog_bo;
 595       dri_bo *state_bo;
 596    } gs;
 597
 598    struct {
 599       struct brw_clip_prog_data *prog_data;
 600
 601       dri_bo *prog_bo;
 602       dri_bo *state_bo;
 603       dri_bo *vp_bo;
 604    } clip;
 605
 606
 607    struct {
 608       struct brw_sf_prog_data *prog_data;
 609
 610       dri_bo *prog_bo;
 611       dri_bo *state_bo;
 612       dri_bo *vp_bo;
 613    } sf;
 614
 615    struct {
 616       struct brw_wm_prog_data *prog_data;
 617       struct brw_wm_compile *compile_data;
 618
 619       /** Input sizes, calculated from active vertex program.
 620        * One bit per fragment program input attribute.
 621        */
 622       GLbitfield input_size_masks[4];
 623
 624       /** Array of surface default colors (texture border color) */
 625       dri_bo *sdc_bo[BRW_MAX_TEX_UNIT];
 626
 627       GLuint render_surf;
 628       GLuint nr_surfaces;
 629
 630       GLuint max_threads;
 631       dri_bo *scratch_bo;
 632
 633       GLuint sampler_count;
 634       dri_bo *sampler_bo;
 635
 636       /** Binding table of pointers to surf_bo entries */
 637       dri_bo *bind_bo;
 638       dri_bo *surf_bo[BRW_WM_MAX_SURF];
 639
 640       dri_bo *prog_bo;
 641       dri_bo *state_bo;
 642    } wm;
 643
 644
 645    struct {
 646       dri_bo *prog_bo;
 647       dri_bo *state_bo;
 648       dri_bo *vp_bo;
 649    } cc;
 650
 651    struct {
 652       struct brw_query_object active_head;
 653       dri_bo *bo;
 654       int index;
 655       GLboolean active;
 656    } query;
 657    /* Used to give every program string a unique id
 658     */
 659    GLuint program_id;
 660 };
 661
 662
 663 #define BRW_PACKCOLOR8888(r,g,b,a)  ((r<<24) | (g<<16) | (b<<8) | a)
 664
 665
 666
 667 /*======================================================================
 668  * brw_vtbl.c
 669  */
 670 void brwInitVtbl( struct brw_context *brw );
 671
 672 /*======================================================================
 673  * brw_context.c
 674  */
 675 GLboolean brwCreateContext( const __GLcontextModes *mesaVis,
 676                             __DRIcontextPrivate *driContextPriv,
 677                             void *sharedContextPrivate);
 678
 679 /*======================================================================
 680  * brw_queryobj.c
 681  */
 682 void brw_init_queryobj_functions(struct dd_function_table *functions);
 683 void brw_prepare_query_begin(struct brw_context *brw);
 684 void brw_emit_query_begin(struct brw_context *brw);
 685 void brw_emit_query_end(struct brw_context *brw);
 686
 687 /*======================================================================
 688  * brw_state_dump.c
 689  */
 690 void brw_debug_batch(struct intel_context *intel);
 691
 692 /*======================================================================
 693  * brw_tex.c
 694  */
 695 void brwUpdateTextureState( struct intel_context *intel );
 696 void brw_FrameBufferTexInit( struct brw_context *brw,
 697                              struct intel_region *region );
 698 void brw_FrameBufferTexDestroy( struct brw_context *brw );
 699 void brw_validate_textures( struct brw_context *brw );
 700
 701
 702 /*======================================================================
 703  * brw_program.c
 704  */
 705 void brwInitFragProgFuncs( struct dd_function_table *functions );
 706
 707
 708 /* brw_urb.c
 709  */
 710 void brw_upload_urb_fence(struct brw_context *brw);
 711
 712 /* brw_curbe.c
 713  */
 714 void brw_upload_cs_urb_state(struct brw_context *brw);
 715
 716
 717 /*======================================================================
 718  * Inline conversion functions.  These are better-typed than the
 719  * macros used previously:
 720  */
 721 static INLINE struct brw_context *
 722 brw_context( GLcontext *ctx )
 723 {
 724    return (struct brw_context *)ctx;
 725 }
 726
 727 static INLINE struct brw_vertex_program *
 728 brw_vertex_program(struct gl_vertex_program *p)
 729 {
 730    return (struct brw_vertex_program *) p;
 731 }
 732
 733 static INLINE const struct brw_vertex_program *
 734 brw_vertex_program_const(const struct gl_vertex_program *p)
 735 {
 736    return (const struct brw_vertex_program *) p;
 737 }
 738
 739 static INLINE struct brw_fragment_program *
 740 brw_fragment_program(struct gl_fragment_program *p)
 741 {
 742    return (struct brw_fragment_program *) p;
 743 }
 744
 745 static INLINE const struct brw_fragment_program *
 746 brw_fragment_program_const(const struct gl_fragment_program *p)
 747 {
 748    return (const struct brw_fragment_program *) p;
 749 }
 750
 751
 752
 753 #define DO_SETUP_BITS ((1<<(FRAG_ATTRIB_MAX)) - 1)
 754
 755 #endif
 756