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 general purpose registers (VS, WM, etc) */
 250 #define BRW_MAX_GRF 128
 251
 252 /** Number of texture sampler units */
 253 #define BRW_MAX_TEX_UNIT 16
 254
 255 /**
 256  * Size of our surface binding table for the WM.
 257  * This contains pointers to the drawing surfaces and current texture
 258  * objects and shader constant buffers (+2).
 259  */
 260 #define BRW_WM_MAX_SURF (MAX_DRAW_BUFFERS + BRW_MAX_TEX_UNIT + 1)
 261
 262 /**
 263  * Helpers to convert drawing buffers, textures and constant buffers
 264  * to surface binding table indexes, for WM.
 265  */
 266 #define SURF_INDEX_DRAW(d)           (d)
 267 #define SURF_INDEX_FRAG_CONST_BUFFER (MAX_DRAW_BUFFERS)
 268 #define SURF_INDEX_TEXTURE(t)        (MAX_DRAW_BUFFERS + 1 + (t))
 269
 270 /**
 271  * Size of surface binding table for the VS.
 272  * Only one constant buffer for now.
 273  */
 274 #define BRW_VS_MAX_SURF 1
 275
 276 /**
 277  * Only a VS constant buffer
 278  */
 279 #define SURF_INDEX_VERT_CONST_BUFFER 0
 280
 281
 282 enum brw_cache_id {
 283    BRW_CC_VP,
 284    BRW_CC_UNIT,
 285    BRW_WM_PROG,
 286    BRW_SAMPLER_DEFAULT_COLOR,
 287    BRW_SAMPLER,
 288    BRW_WM_UNIT,
 289    BRW_SF_PROG,
 290    BRW_SF_VP,
 291    BRW_SF_UNIT,
 292    BRW_VS_UNIT,
 293    BRW_VS_PROG,
 294    BRW_GS_UNIT,
 295    BRW_GS_PROG,
 296    BRW_CLIP_VP,
 297    BRW_CLIP_UNIT,
 298    BRW_CLIP_PROG,
 299    BRW_SS_SURFACE,
 300    BRW_SS_SURF_BIND,
 301
 302    BRW_MAX_CACHE
 303 };
 304
 305 struct brw_cache_item {
 306    /**
 307     * Effectively part of the key, cache_id identifies what kind of state
 308     * buffer is involved, and also which brw->state.dirty.cache flag should
 309     * be set when this cache item is chosen.
 310     */
 311    enum brw_cache_id cache_id;
 312    /** 32-bit hash of the key data */
 313    GLuint hash;
 314    GLuint key_size;             /* for variable-sized keys */
 315    const void *key;
 316    dri_bo **reloc_bufs;
 317    GLuint nr_reloc_bufs;
 318
 319    dri_bo *bo;
 320    GLuint data_size;
 321
 322    struct brw_cache_item *next;
 323 };
 324
 325
 326
 327 struct brw_cache {
 328    struct brw_context *brw;
 329
 330    struct brw_cache_item **items;
 331    GLuint size, n_items;
 332
 333    GLuint key_size[BRW_MAX_CACHE];              /* for fixed-size keys */
 334    GLuint aux_size[BRW_MAX_CACHE];
 335    char *name[BRW_MAX_CACHE];
 336
 337    /* Record of the last BOs chosen for each cache_id.  Used to set
 338     * brw->state.dirty.cache when a new cache item is chosen.
 339     */
 340    dri_bo *last_bo[BRW_MAX_CACHE];
 341 };
 342
 343
 344 /* Considered adding a member to this struct to document which flags
 345  * an update might raise so that ordering of the state atoms can be
 346  * checked or derived at runtime.  Dropped the idea in favor of having
 347  * a debug mode where the state is monitored for flags which are
 348  * raised that have already been tested against.
 349  */
 350 struct brw_tracked_state {
 351    struct brw_state_flags dirty;
 352    void (*prepare)( struct brw_context *brw );
 353    void (*emit)( struct brw_context *brw );
 354 };
 355
 356 /* Flags for brw->state.cache.
 357  */
 358 #define CACHE_NEW_CC_VP                  (1<<BRW_CC_VP)
 359 #define CACHE_NEW_CC_UNIT                (1<<BRW_CC_UNIT)
 360 #define CACHE_NEW_WM_PROG                (1<<BRW_WM_PROG)
 361 #define CACHE_NEW_SAMPLER_DEFAULT_COLOR  (1<<BRW_SAMPLER_DEFAULT_COLOR)
 362 #define CACHE_NEW_SAMPLER                (1<<BRW_SAMPLER)
 363 #define CACHE_NEW_WM_UNIT                (1<<BRW_WM_UNIT)
 364 #define CACHE_NEW_SF_PROG                (1<<BRW_SF_PROG)
 365 #define CACHE_NEW_SF_VP                  (1<<BRW_SF_VP)
 366 #define CACHE_NEW_SF_UNIT                (1<<BRW_SF_UNIT)
 367 #define CACHE_NEW_VS_UNIT                (1<<BRW_VS_UNIT)
 368 #define CACHE_NEW_VS_PROG                (1<<BRW_VS_PROG)
 369 #define CACHE_NEW_GS_UNIT                (1<<BRW_GS_UNIT)
 370 #define CACHE_NEW_GS_PROG                (1<<BRW_GS_PROG)
 371 #define CACHE_NEW_CLIP_VP                (1<<BRW_CLIP_VP)
 372 #define CACHE_NEW_CLIP_UNIT              (1<<BRW_CLIP_UNIT)
 373 #define CACHE_NEW_CLIP_PROG              (1<<BRW_CLIP_PROG)
 374 #define CACHE_NEW_SURFACE                (1<<BRW_SS_SURFACE)
 375 #define CACHE_NEW_SURF_BIND              (1<<BRW_SS_SURF_BIND)
 376
 377 struct brw_cached_batch_item {
 378    struct header *header;
 379    GLuint sz;
 380    struct brw_cached_batch_item *next;
 381 };
 382
 383
 384
 385 /* Protect against a future where VERT_ATTRIB_MAX > 32.  Wouldn't life
 386  * be easier if C allowed arrays of packed elements?
 387  */
 388 #define ATTRIB_BIT_DWORDS  ((VERT_ATTRIB_MAX+31)/32)
 389
 390 struct brw_vertex_element {
 391    const struct gl_client_array *glarray;
 392
 393    /** Size of a complete element */
 394    GLuint element_size;
 395    /** Number of uploaded elements for this input. */
 396    GLuint count;
 397    /** Byte stride between elements in the uploaded array */
 398    GLuint stride;
 399    /** Offset of the first element within the buffer object */
 400    unsigned int offset;
 401    /** Buffer object containing the uploaded vertex data */
 402    dri_bo *bo;
 403 };
 404
 405
 406
 407 struct brw_vertex_info {
 408    GLuint varying;  /* varying:1[VERT_ATTRIB_MAX] */
 409    GLuint sizes[ATTRIB_BIT_DWORDS * 2]; /* sizes:2[VERT_ATTRIB_MAX] */
 410 };
 411
 412
 413
 414
 415 /* Cache for TNL programs.
 416  */
 417 struct brw_tnl_cache_item {
 418    GLuint hash;
 419    void *key;
 420    void *data;
 421    struct brw_tnl_cache_item *next;
 422 };
 423
 424 struct brw_tnl_cache {
 425    struct brw_tnl_cache_item **items;
 426    GLuint size, n_items;
 427 };
 428
 429 struct brw_query_object {
 430    struct gl_query_object Base;
 431
 432    /** Doubly linked list of active query objects in the context. */
 433    struct brw_query_object *prev, *next;
 434
 435    /** Last query BO associated with this query. */
 436    dri_bo *bo;
 437    /** First index in bo with query data for this object. */
 438    int first_index;
 439    /** Last index in bo with query data for this object. */
 440    int last_index;
 441
 442    /* Total count of pixels from previous BOs */
 443    unsigned int count;
 444 };
 445
 446 struct brw_context
 447 {
 448    struct intel_context intel;
 449    GLuint primitive;
 450
 451    GLboolean emit_state_always;
 452    GLboolean tmp_fallback;
 453    GLboolean no_batch_wrap;
 454
 455    struct {
 456       struct brw_state_flags dirty;
 457
 458       GLuint nr_color_regions;
 459       struct intel_region *color_regions[MAX_DRAW_BUFFERS];
 460       struct intel_region *depth_region;
 461
 462       /**
 463        * List of buffers accumulated in brw_validate_state to receive
 464        * dri_bo_check_aperture treatment before exec, so we can know if we
 465        * should flush the batch and try again before emitting primitives.
 466        *
 467        * This can be a fixed number as we only have a limited number of
 468        * objects referenced from the batchbuffer in a primitive emit,
 469        * consisting of the vertex buffers, pipelined state pointers,
 470        * the CURBE, the depth buffer, and a query BO.
 471        */
 472       dri_bo *validated_bos[VERT_ATTRIB_MAX + 16];
 473       int validated_bo_count;
 474    } state;
 475
 476    struct brw_cache cache;  /** non-surface items */
 477    struct brw_cache surface_cache;  /* surface items */
 478    struct brw_cached_batch_item *cached_batch_items;
 479
 480    struct {
 481       struct brw_vertex_element inputs[VERT_ATTRIB_MAX];
 482
 483 #define BRW_NR_UPLOAD_BUFS 17
 484 #define BRW_UPLOAD_INIT_SIZE (128*1024)
 485
 486       struct {
 487          dri_bo *bo;
 488          GLuint offset;
 489       } upload;
 490
 491       /* Summary of size and varying of active arrays, so we can check
 492        * for changes to this state:
 493        */
 494       struct brw_vertex_info info;
 495       unsigned int min_index, max_index;
 496    } vb;
 497
 498    struct {
 499       /**
 500        * Index buffer for this draw_prims call.
 501        *
 502        * Updates are signaled by BRW_NEW_INDICES.
 503        */
 504       const struct _mesa_index_buffer *ib;
 505
 506       dri_bo *bo;
 507       unsigned int offset;
 508    } ib;
 509
 510    /* Active vertex program:
 511     */
 512    const struct gl_vertex_program *vertex_program;
 513    const struct gl_fragment_program *fragment_program;
 514
 515
 516    /* For populating the gtt:
 517     */
 518    GLuint next_free_page;
 519
 520
 521    /* BRW_NEW_URB_ALLOCATIONS:
 522     */
 523    struct {
 524       GLuint vsize;             /* vertex size plus header in urb registers */
 525       GLuint csize;             /* constant buffer size in urb registers */
 526       GLuint sfsize;            /* setup data size in urb registers */
 527
 528       GLboolean constrained;
 529
 530       GLuint nr_vs_entries;
 531       GLuint nr_gs_entries;
 532       GLuint nr_clip_entries;
 533       GLuint nr_sf_entries;
 534       GLuint nr_cs_entries;
 535
 536 /*       GLuint vs_size; */
 537 /*       GLuint gs_size; */
 538 /*       GLuint clip_size; */
 539 /*       GLuint sf_size; */
 540 /*       GLuint cs_size; */
 541
 542       GLuint vs_start;
 543       GLuint gs_start;
 544       GLuint clip_start;
 545       GLuint sf_start;
 546       GLuint cs_start;
 547    } urb;
 548
 549
 550    /* BRW_NEW_CURBE_OFFSETS:
 551     */
 552    struct {
 553       GLuint wm_start;  /**< pos of first wm const in CURBE buffer */
 554       GLuint wm_size;   /**< number of float[4] consts, multiple of 16 */
 555       GLuint clip_start;
 556       GLuint clip_size;
 557       GLuint vs_start;
 558       GLuint vs_size;
 559       GLuint total_size;
 560
 561       dri_bo *curbe_bo;
 562       /** Offset within curbe_bo of space for current curbe entry */
 563       GLuint curbe_offset;
 564       /** Offset within curbe_bo of space for next curbe entry */
 565       GLuint curbe_next_offset;
 566
 567       GLfloat *last_buf;
 568       GLuint last_bufsz;
 569       /**
 570        *  Whether we should create a new bo instead of reusing the old one
 571        * (if we just dispatch the batch pointing at the old one.
 572        */
 573       GLboolean need_new_bo;
 574    } curbe;
 575
 576    struct {
 577       struct brw_vs_prog_data *prog_data;
 578
 579       dri_bo *prog_bo;
 580       dri_bo *state_bo;
 581
 582       /** Binding table of pointers to surf_bo entries */
 583       dri_bo *bind_bo;
 584       dri_bo *surf_bo[BRW_VS_MAX_SURF];
 585       GLuint nr_surfaces;
 586    } vs;
 587
 588    struct {
 589       struct brw_gs_prog_data *prog_data;
 590
 591       GLboolean prog_active;
 592       dri_bo *prog_bo;
 593       dri_bo *state_bo;
 594    } gs;
 595
 596    struct {
 597       struct brw_clip_prog_data *prog_data;
 598
 599       dri_bo *prog_bo;
 600       dri_bo *state_bo;
 601       dri_bo *vp_bo;
 602    } clip;
 603
 604
 605    struct {
 606       struct brw_sf_prog_data *prog_data;
 607
 608       dri_bo *prog_bo;
 609       dri_bo *state_bo;
 610       dri_bo *vp_bo;
 611    } sf;
 612
 613    struct {
 614       struct brw_wm_prog_data *prog_data;
 615       struct brw_wm_compile *compile_data;
 616
 617       /** Input sizes, calculated from active vertex program.
 618        * One bit per fragment program input attribute.
 619        */
 620       GLbitfield input_size_masks[4];
 621
 622       /** Array of surface default colors (texture border color) */
 623       dri_bo *sdc_bo[BRW_MAX_TEX_UNIT];
 624
 625       GLuint render_surf;
 626       GLuint nr_surfaces;
 627
 628       GLuint max_threads;
 629       dri_bo *scratch_bo;
 630
 631       GLuint sampler_count;
 632       dri_bo *sampler_bo;
 633
 634       /** Binding table of pointers to surf_bo entries */
 635       dri_bo *bind_bo;
 636       dri_bo *surf_bo[BRW_WM_MAX_SURF];
 637
 638       dri_bo *prog_bo;
 639       dri_bo *state_bo;
 640    } wm;
 641
 642
 643    struct {
 644       dri_bo *prog_bo;
 645       dri_bo *state_bo;
 646       dri_bo *vp_bo;
 647    } cc;
 648
 649    struct {
 650       struct brw_query_object active_head;
 651       dri_bo *bo;
 652       int index;
 653       GLboolean active;
 654    } query;
 655    /* Used to give every program string a unique id
 656     */
 657    GLuint program_id;
 658 };
 659
 660
 661 #define BRW_PACKCOLOR8888(r,g,b,a)  ((r<<24) | (g<<16) | (b<<8) | a)
 662
 663
 664
 665 /*======================================================================
 666  * brw_vtbl.c
 667  */
 668 void brwInitVtbl( struct brw_context *brw );
 669
 670 /*======================================================================
 671  * brw_context.c
 672  */
 673 GLboolean brwCreateContext( const __GLcontextModes *mesaVis,
 674                             __DRIcontextPrivate *driContextPriv,
 675                             void *sharedContextPrivate);
 676
 677 /*======================================================================
 678  * brw_queryobj.c
 679  */
 680 void brw_init_queryobj_functions(struct dd_function_table *functions);
 681 void brw_prepare_query_begin(struct brw_context *brw);
 682 void brw_emit_query_begin(struct brw_context *brw);
 683 void brw_emit_query_end(struct brw_context *brw);
 684
 685 /*======================================================================
 686  * brw_state_dump.c
 687  */
 688 void brw_debug_batch(struct intel_context *intel);
 689
 690 /*======================================================================
 691  * brw_tex.c
 692  */
 693 void brwUpdateTextureState( struct intel_context *intel );
 694 void brw_FrameBufferTexInit( struct brw_context *brw,
 695                              struct intel_region *region );
 696 void brw_FrameBufferTexDestroy( struct brw_context *brw );
 697 void brw_validate_textures( struct brw_context *brw );
 698
 699
 700 /*======================================================================
 701  * brw_program.c
 702  */
 703 void brwInitFragProgFuncs( struct dd_function_table *functions );
 704
 705
 706 /* brw_urb.c
 707  */
 708 void brw_upload_urb_fence(struct brw_context *brw);
 709
 710 /* brw_curbe.c
 711  */
 712 void brw_upload_cs_urb_state(struct brw_context *brw);
 713
 714
 715 /*======================================================================
 716  * Inline conversion functions.  These are better-typed than the
 717  * macros used previously:
 718  */
 719 static INLINE struct brw_context *
 720 brw_context( GLcontext *ctx )
 721 {
 722    return (struct brw_context *)ctx;
 723 }
 724
 725 static INLINE struct brw_vertex_program *
 726 brw_vertex_program(struct gl_vertex_program *p)
 727 {
 728    return (struct brw_vertex_program *) p;
 729 }
 730
 731 static INLINE const struct brw_vertex_program *
 732 brw_vertex_program_const(const struct gl_vertex_program *p)
 733 {
 734    return (const struct brw_vertex_program *) p;
 735 }
 736
 737 static INLINE struct brw_fragment_program *
 738 brw_fragment_program(struct gl_fragment_program *p)
 739 {
 740    return (struct brw_fragment_program *) p;
 741 }
 742
 743 static INLINE const struct brw_fragment_program *
 744 brw_fragment_program_const(const struct gl_fragment_program *p)
 745 {
 746    return (const struct brw_fragment_program *) p;
 747 }
 748
 749
 750
 751 #define DO_SETUP_BITS ((1<<(FRAG_ATTRIB_MAX)) - 1)
 752
 753 #endif
 754