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
 119 #define BRW_FALLBACK_DRAW  (INTEL_FALLBACK_DRIVER << 0)
 120
 121 #define BRW_MAX_CURBE                    (32*16)
 122
 123 struct brw_context;
 124
 125 #define BRW_NEW_URB_FENCE               0x1
 126 #define BRW_NEW_FRAGMENT_PROGRAM        0x2
 127 #define BRW_NEW_VERTEX_PROGRAM          0x4
 128 #define BRW_NEW_INPUT_DIMENSIONS        0x8
 129 #define BRW_NEW_CURBE_OFFSETS           0x10
 130 #define BRW_NEW_REDUCED_PRIMITIVE       0x20
 131 #define BRW_NEW_PRIMITIVE               0x40
 132 #define BRW_NEW_CONTEXT                 0x80
 133 #define BRW_NEW_WM_INPUT_DIMENSIONS     0x100
 134 #define BRW_NEW_PSP                     0x800
 135 #define BRW_NEW_WM_SURFACES             0x1000
 136 #define BRW_NEW_FENCE                   0x2000
 137 #define BRW_NEW_INDICES                 0x4000
 138 #define BRW_NEW_VERTICES                0x8000
 139 /**
 140  * Used for any batch entry with a relocated pointer that will be used
 141  * by any 3D rendering.
 142  */
 143 #define BRW_NEW_BATCH                   0x10000
 144 /** brw->depth_region updated */
 145 #define BRW_NEW_DEPTH_BUFFER            0x20000
 146 #define BRW_NEW_NR_WM_SURFACES          0x40000
 147 #define BRW_NEW_NR_VS_SURFACES          0x80000
 148 #define BRW_NEW_INDEX_BUFFER            0x100000
 149
 150 struct brw_state_flags {
 151    /** State update flags signalled by mesa internals */
 152    GLuint mesa;
 153    /**
 154     * State update flags signalled as the result of brw_tracked_state updates
 155     */
 156    GLuint brw;
 157    /** State update flags signalled by brw_state_cache.c searches */
 158    GLuint cache;
 159 };
 160
 161
 162 /** Subclass of Mesa vertex program */
 163 struct brw_vertex_program {
 164    struct gl_vertex_program program;
 165    GLuint id;
 166    dri_bo *const_buffer;    /** Program constant buffer/surface */
 167    GLboolean use_const_buffer;
 168 };
 169
 170
 171 /** Subclass of Mesa fragment program */
 172 struct brw_fragment_program {
 173    struct gl_fragment_program program;
 174    GLuint id;  /**< serial no. to identify frag progs, never re-used */
 175    GLboolean isGLSL;  /**< really, any IF/LOOP/CONT/BREAK instructions */
 176
 177    dri_bo *const_buffer;    /** Program constant buffer/surface */
 178    GLboolean use_const_buffer;
 179
 180    /** for debugging, which texture units are referenced */
 181    GLbitfield tex_units_used;
 182 };
 183
 184
 185 /* Data about a particular attempt to compile a program.  Note that
 186  * there can be many of these, each in a different GL state
 187  * corresponding to a different brw_wm_prog_key struct, with different
 188  * compiled programs:
 189  */
 190 struct brw_wm_prog_data {
 191    GLuint curb_read_length;
 192    GLuint urb_read_length;
 193
 194    GLuint first_curbe_grf;
 195    GLuint total_grf;
 196    GLuint total_scratch;
 197
 198    GLuint nr_params;       /**< number of float params/constants */
 199    GLboolean error;
 200
 201    /* Pointer to tracked values (only valid once
 202     * _mesa_load_state_parameters has been called at runtime).
 203     */
 204    const GLfloat *param[BRW_MAX_CURBE];
 205 };
 206
 207 struct brw_sf_prog_data {
 208    GLuint urb_read_length;
 209    GLuint total_grf;
 210
 211    /* Each vertex may have upto 12 attributes, 4 components each,
 212     * except WPOS which requires only 2.  (11*4 + 2) == 44 ==> 11
 213     * rows.
 214     *
 215     * Actually we use 4 for each, so call it 12 rows.
 216     */
 217    GLuint urb_entry_size;
 218 };
 219
 220 struct brw_clip_prog_data {
 221    GLuint curb_read_length;     /* user planes? */
 222    GLuint clip_mode;
 223    GLuint urb_read_length;
 224    GLuint total_grf;
 225 };
 226
 227 struct brw_gs_prog_data {
 228    GLuint urb_read_length;
 229    GLuint total_grf;
 230 };
 231
 232 struct brw_vs_prog_data {
 233    GLuint curb_read_length;
 234    GLuint urb_read_length;
 235    GLuint total_grf;
 236    GLuint outputs_written;
 237    GLuint nr_params;       /**< number of float params/constants */
 238
 239    GLuint inputs_read;
 240
 241    /* Used for calculating urb partitions:
 242     */
 243    GLuint urb_entry_size;
 244 };
 245
 246
 247 /* Size == 0 if output either not written, or always [0,0,0,1]
 248  */
 249 struct brw_vs_ouput_sizes {
 250    GLubyte output_size[VERT_RESULT_MAX];
 251 };
 252
 253
 254 /** Number of texture sampler units */
 255 #define BRW_MAX_TEX_UNIT 16
 256
 257 /**
 258  * Size of our surface binding table for the WM.
 259  * This contains pointers to the drawing surfaces and current texture
 260  * objects and shader constant buffers (+2).
 261  */
 262 #define BRW_WM_MAX_SURF (MAX_DRAW_BUFFERS + BRW_MAX_TEX_UNIT + 1)
 263
 264 /**
 265  * Helpers to convert drawing buffers, textures and constant buffers
 266  * to surface binding table indexes, for WM.
 267  */
 268 #define SURF_INDEX_DRAW(d)           (d)
 269 #define SURF_INDEX_FRAG_CONST_BUFFER (MAX_DRAW_BUFFERS)
 270 #define SURF_INDEX_TEXTURE(t)        (MAX_DRAW_BUFFERS + 1 + (t))
 271
 272 /**
 273  * Size of surface binding table for the VS.
 274  * Only one constant buffer for now.
 275  */
 276 #define BRW_VS_MAX_SURF 1
 277
 278 /**
 279  * Only a VS constant buffer
 280  */
 281 #define SURF_INDEX_VERT_CONST_BUFFER 0
 282
 283
 284 enum brw_cache_id {
 285    BRW_CC_VP,
 286    BRW_CC_UNIT,
 287    BRW_WM_PROG,
 288    BRW_SAMPLER_DEFAULT_COLOR,
 289    BRW_SAMPLER,
 290    BRW_WM_UNIT,
 291    BRW_SF_PROG,
 292    BRW_SF_VP,
 293    BRW_SF_UNIT,
 294    BRW_VS_UNIT,
 295    BRW_VS_PROG,
 296    BRW_GS_UNIT,
 297    BRW_GS_PROG,
 298    BRW_CLIP_VP,
 299    BRW_CLIP_UNIT,
 300    BRW_CLIP_PROG,
 301    BRW_SS_SURFACE,
 302    BRW_SS_SURF_BIND,
 303
 304    BRW_MAX_CACHE
 305 };
 306
 307 struct brw_cache_item {
 308    /**
 309     * Effectively part of the key, cache_id identifies what kind of state
 310     * buffer is involved, and also which brw->state.dirty.cache flag should
 311     * be set when this cache item is chosen.
 312     */
 313    enum brw_cache_id cache_id;
 314    /** 32-bit hash of the key data */
 315    GLuint hash;
 316    GLuint key_size;             /* for variable-sized keys */
 317    const void *key;
 318    dri_bo **reloc_bufs;
 319    GLuint nr_reloc_bufs;
 320
 321    dri_bo *bo;
 322    GLuint data_size;
 323
 324    struct brw_cache_item *next;
 325 };
 326
 327
 328
 329 struct brw_cache {
 330    struct brw_context *brw;
 331
 332    struct brw_cache_item **items;
 333    GLuint size, n_items;
 334
 335    GLuint key_size[BRW_MAX_CACHE];              /* for fixed-size keys */
 336    GLuint aux_size[BRW_MAX_CACHE];
 337    char *name[BRW_MAX_CACHE];
 338
 339    /* Record of the last BOs chosen for each cache_id.  Used to set
 340     * brw->state.dirty.cache when a new cache item is chosen.
 341     */
 342    dri_bo *last_bo[BRW_MAX_CACHE];
 343 };
 344
 345
 346 /* Considered adding a member to this struct to document which flags
 347  * an update might raise so that ordering of the state atoms can be
 348  * checked or derived at runtime.  Dropped the idea in favor of having
 349  * a debug mode where the state is monitored for flags which are
 350  * raised that have already been tested against.
 351  */
 352 struct brw_tracked_state {
 353    struct brw_state_flags dirty;
 354    void (*prepare)( struct brw_context *brw );
 355    void (*emit)( struct brw_context *brw );
 356 };
 357
 358 /* Flags for brw->state.cache.
 359  */
 360 #define CACHE_NEW_CC_VP                  (1<<BRW_CC_VP)
 361 #define CACHE_NEW_CC_UNIT                (1<<BRW_CC_UNIT)
 362 #define CACHE_NEW_WM_PROG                (1<<BRW_WM_PROG)
 363 #define CACHE_NEW_SAMPLER_DEFAULT_COLOR  (1<<BRW_SAMPLER_DEFAULT_COLOR)
 364 #define CACHE_NEW_SAMPLER                (1<<BRW_SAMPLER)
 365 #define CACHE_NEW_WM_UNIT                (1<<BRW_WM_UNIT)
 366 #define CACHE_NEW_SF_PROG                (1<<BRW_SF_PROG)
 367 #define CACHE_NEW_SF_VP                  (1<<BRW_SF_VP)
 368 #define CACHE_NEW_SF_UNIT                (1<<BRW_SF_UNIT)
 369 #define CACHE_NEW_VS_UNIT                (1<<BRW_VS_UNIT)
 370 #define CACHE_NEW_VS_PROG                (1<<BRW_VS_PROG)
 371 #define CACHE_NEW_GS_UNIT                (1<<BRW_GS_UNIT)
 372 #define CACHE_NEW_GS_PROG                (1<<BRW_GS_PROG)
 373 #define CACHE_NEW_CLIP_VP                (1<<BRW_CLIP_VP)
 374 #define CACHE_NEW_CLIP_UNIT              (1<<BRW_CLIP_UNIT)
 375 #define CACHE_NEW_CLIP_PROG              (1<<BRW_CLIP_PROG)
 376 #define CACHE_NEW_SURFACE                (1<<BRW_SS_SURFACE)
 377 #define CACHE_NEW_SURF_BIND              (1<<BRW_SS_SURF_BIND)
 378
 379 struct brw_cached_batch_item {
 380    struct header *header;
 381    GLuint sz;
 382    struct brw_cached_batch_item *next;
 383 };
 384
 385
 386
 387 /* Protect against a future where VERT_ATTRIB_MAX > 32.  Wouldn't life
 388  * be easier if C allowed arrays of packed elements?
 389  */
 390 #define ATTRIB_BIT_DWORDS  ((VERT_ATTRIB_MAX+31)/32)
 391
 392 struct brw_vertex_element {
 393    const struct gl_client_array *glarray;
 394
 395    /** The corresponding Mesa vertex attribute */
 396    gl_vert_attrib attrib;
 397    /** Size of a complete element */
 398    GLuint element_size;
 399    /** Number of uploaded elements for this input. */
 400    GLuint count;
 401    /** Byte stride between elements in the uploaded array */
 402    GLuint stride;
 403    /** Offset of the first element within the buffer object */
 404    unsigned int offset;
 405    /** Buffer object containing the uploaded vertex data */
 406    dri_bo *bo;
 407 };
 408
 409
 410
 411 struct brw_vertex_info {
 412    GLuint sizes[ATTRIB_BIT_DWORDS * 2]; /* sizes:2[VERT_ATTRIB_MAX] */
 413 };
 414
 415
 416
 417
 418 /* Cache for TNL programs.
 419  */
 420 struct brw_tnl_cache_item {
 421    GLuint hash;
 422    void *key;
 423    void *data;
 424    struct brw_tnl_cache_item *next;
 425 };
 426
 427 struct brw_tnl_cache {
 428    struct brw_tnl_cache_item **items;
 429    GLuint size, n_items;
 430 };
 431
 432 struct brw_query_object {
 433    struct gl_query_object Base;
 434
 435    /** Doubly linked list of active query objects in the context. */
 436    struct brw_query_object *prev, *next;
 437
 438    /** Last query BO associated with this query. */
 439    dri_bo *bo;
 440    /** First index in bo with query data for this object. */
 441    int first_index;
 442    /** Last index in bo with query data for this object. */
 443    int last_index;
 444
 445    /* Total count of pixels from previous BOs */
 446    unsigned int count;
 447 };
 448
 449
 450 /**
 451  * brw_context is derived from intel_context.
 452  */
 453 struct brw_context
 454 {
 455    struct intel_context intel;  /**< base class, must be first field */
 456    GLuint primitive;
 457
 458    GLboolean emit_state_always;
 459    GLboolean no_batch_wrap;
 460
 461    struct {
 462       struct brw_state_flags dirty;
 463
 464       GLuint nr_color_regions;
 465       struct intel_region *color_regions[MAX_DRAW_BUFFERS];
 466       struct intel_region *depth_region;
 467
 468       /**
 469        * List of buffers accumulated in brw_validate_state to receive
 470        * dri_bo_check_aperture treatment before exec, so we can know if we
 471        * should flush the batch and try again before emitting primitives.
 472        *
 473        * This can be a fixed number as we only have a limited number of
 474        * objects referenced from the batchbuffer in a primitive emit,
 475        * consisting of the vertex buffers, pipelined state pointers,
 476        * the CURBE, the depth buffer, and a query BO.
 477        */
 478       dri_bo *validated_bos[VERT_ATTRIB_MAX + 16];
 479       int validated_bo_count;
 480    } state;
 481
 482    struct brw_cache cache;  /** non-surface items */
 483    struct brw_cache surface_cache;  /* surface items */
 484    struct brw_cached_batch_item *cached_batch_items;
 485
 486    struct {
 487       struct brw_vertex_element inputs[VERT_ATTRIB_MAX];
 488
 489       struct brw_vertex_element *enabled[VERT_ATTRIB_MAX];
 490       GLuint nr_enabled;
 491
 492 #define BRW_NR_UPLOAD_BUFS 17
 493 #define BRW_UPLOAD_INIT_SIZE (128*1024)
 494
 495       struct {
 496          dri_bo *bo;
 497          GLuint offset;
 498       } upload;
 499
 500       /* Summary of size and varying of active arrays, so we can check
 501        * for changes to this state:
 502        */
 503       struct brw_vertex_info info;
 504       unsigned int min_index, max_index;
 505    } vb;
 506
 507    struct {
 508       /**
 509        * Index buffer for this draw_prims call.
 510        *
 511        * Updates are signaled by BRW_NEW_INDICES.
 512        */
 513       const struct _mesa_index_buffer *ib;
 514
 515       /* Updates to these fields are signaled by BRW_NEW_INDEX_BUFFER. */
 516       dri_bo *bo;
 517       unsigned int offset;
 518       unsigned int size;
 519       /* Offset to index buffer index to use in CMD_3D_PRIM so that we can
 520        * avoid re-uploading the IB packet over and over if we're actually
 521        * referencing the same index buffer.
 522        */
 523       unsigned int start_vertex_offset;
 524    } ib;
 525
 526    /* Active vertex program:
 527     */
 528    const struct gl_vertex_program *vertex_program;
 529    const struct gl_fragment_program *fragment_program;
 530
 531
 532    /* For populating the gtt:
 533     */
 534    GLuint next_free_page;
 535
 536
 537    /* BRW_NEW_URB_ALLOCATIONS:
 538     */
 539    struct {
 540       GLuint vsize;             /* vertex size plus header in urb registers */
 541       GLuint csize;             /* constant buffer size in urb registers */
 542       GLuint sfsize;            /* setup data size in urb registers */
 543
 544       GLboolean constrained;
 545
 546       GLuint nr_vs_entries;
 547       GLuint nr_gs_entries;
 548       GLuint nr_clip_entries;
 549       GLuint nr_sf_entries;
 550       GLuint nr_cs_entries;
 551
 552 /*       GLuint vs_size; */
 553 /*       GLuint gs_size; */
 554 /*       GLuint clip_size; */
 555 /*       GLuint sf_size; */
 556 /*       GLuint cs_size; */
 557
 558       GLuint vs_start;
 559       GLuint gs_start;
 560       GLuint clip_start;
 561       GLuint sf_start;
 562       GLuint cs_start;
 563    } urb;
 564
 565
 566    /* BRW_NEW_CURBE_OFFSETS:
 567     */
 568    struct {
 569       GLuint wm_start;  /**< pos of first wm const in CURBE buffer */
 570       GLuint wm_size;   /**< number of float[4] consts, multiple of 16 */
 571       GLuint clip_start;
 572       GLuint clip_size;
 573       GLuint vs_start;
 574       GLuint vs_size;
 575       GLuint total_size;
 576
 577       dri_bo *curbe_bo;
 578       /** Offset within curbe_bo of space for current curbe entry */
 579       GLuint curbe_offset;
 580       /** Offset within curbe_bo of space for next curbe entry */
 581       GLuint curbe_next_offset;
 582
 583       GLfloat *last_buf;
 584       GLuint last_bufsz;
 585       /**
 586        *  Whether we should create a new bo instead of reusing the old one
 587        * (if we just dispatch the batch pointing at the old one.
 588        */
 589       GLboolean need_new_bo;
 590    } curbe;
 591
 592    struct {
 593       struct brw_vs_prog_data *prog_data;
 594
 595       dri_bo *prog_bo;
 596       dri_bo *state_bo;
 597
 598       /** Binding table of pointers to surf_bo entries */
 599       dri_bo *bind_bo;
 600       dri_bo *surf_bo[BRW_VS_MAX_SURF];
 601       GLuint nr_surfaces;
 602    } vs;
 603
 604    struct {
 605       struct brw_gs_prog_data *prog_data;
 606
 607       GLboolean prog_active;
 608       dri_bo *prog_bo;
 609       dri_bo *state_bo;
 610    } gs;
 611
 612    struct {
 613       struct brw_clip_prog_data *prog_data;
 614
 615       dri_bo *prog_bo;
 616       dri_bo *state_bo;
 617       dri_bo *vp_bo;
 618    } clip;
 619
 620
 621    struct {
 622       struct brw_sf_prog_data *prog_data;
 623
 624       dri_bo *prog_bo;
 625       dri_bo *state_bo;
 626       dri_bo *vp_bo;
 627    } sf;
 628
 629    struct {
 630       struct brw_wm_prog_data *prog_data;
 631       struct brw_wm_compile *compile_data;
 632
 633       /** Input sizes, calculated from active vertex program.
 634        * One bit per fragment program input attribute.
 635        */
 636       GLbitfield input_size_masks[4];
 637
 638       /** Array of surface default colors (texture border color) */
 639       dri_bo *sdc_bo[BRW_MAX_TEX_UNIT];
 640
 641       GLuint render_surf;
 642       GLuint nr_surfaces;
 643
 644       GLuint max_threads;
 645       dri_bo *scratch_bo;
 646
 647       GLuint sampler_count;
 648       dri_bo *sampler_bo;
 649
 650       /** Binding table of pointers to surf_bo entries */
 651       dri_bo *bind_bo;
 652       dri_bo *surf_bo[BRW_WM_MAX_SURF];
 653
 654       dri_bo *prog_bo;
 655       dri_bo *state_bo;
 656    } wm;
 657
 658
 659    struct {
 660       dri_bo *prog_bo;
 661       dri_bo *state_bo;
 662       dri_bo *vp_bo;
 663    } cc;
 664
 665    struct {
 666       struct brw_query_object active_head;
 667       dri_bo *bo;
 668       int index;
 669       GLboolean active;
 670    } query;
 671    /* Used to give every program string a unique id
 672     */
 673    GLuint program_id;
 674 };
 675
 676
 677 #define BRW_PACKCOLOR8888(r,g,b,a)  ((r<<24) | (g<<16) | (b<<8) | a)
 678
 679
 680
 681 /*======================================================================
 682  * brw_vtbl.c
 683  */
 684 void brwInitVtbl( struct brw_context *brw );
 685
 686 /*======================================================================
 687  * brw_context.c
 688  */
 689 GLboolean brwCreateContext( const __GLcontextModes *mesaVis,
 690                             __DRIcontextPrivate *driContextPriv,
 691                             void *sharedContextPrivate);
 692
 693 /*======================================================================
 694  * brw_queryobj.c
 695  */
 696 void brw_init_queryobj_functions(struct dd_function_table *functions);
 697 void brw_prepare_query_begin(struct brw_context *brw);
 698 void brw_emit_query_begin(struct brw_context *brw);
 699 void brw_emit_query_end(struct brw_context *brw);
 700
 701 /*======================================================================
 702  * brw_state_dump.c
 703  */
 704 void brw_debug_batch(struct intel_context *intel);
 705
 706 /*======================================================================
 707  * brw_tex.c
 708  */
 709 void brw_validate_textures( struct brw_context *brw );
 710
 711
 712 /*======================================================================
 713  * brw_program.c
 714  */
 715 void brwInitFragProgFuncs( struct dd_function_table *functions );
 716
 717
 718 /* brw_urb.c
 719  */
 720 void brw_upload_urb_fence(struct brw_context *brw);
 721
 722 /* brw_curbe.c
 723  */
 724 void brw_upload_cs_urb_state(struct brw_context *brw);
 725
 726 /* brw_disasm.c */
 727 int brw_disasm (FILE *file, struct brw_instruction *inst);
 728
 729 /*======================================================================
 730  * Inline conversion functions.  These are better-typed than the
 731  * macros used previously:
 732  */
 733 static INLINE struct brw_context *
 734 brw_context( GLcontext *ctx )
 735 {
 736    return (struct brw_context *)ctx;
 737 }
 738
 739 static INLINE struct brw_vertex_program *
 740 brw_vertex_program(struct gl_vertex_program *p)
 741 {
 742    return (struct brw_vertex_program *) p;
 743 }
 744
 745 static INLINE const struct brw_vertex_program *
 746 brw_vertex_program_const(const struct gl_vertex_program *p)
 747 {
 748    return (const struct brw_vertex_program *) p;
 749 }
 750
 751 static INLINE struct brw_fragment_program *
 752 brw_fragment_program(struct gl_fragment_program *p)
 753 {
 754    return (struct brw_fragment_program *) p;
 755 }
 756
 757 static INLINE const struct brw_fragment_program *
 758 brw_fragment_program_const(const struct gl_fragment_program *p)
 759 {
 760    return (const struct brw_fragment_program *) p;
 761 }
 762
 763
 764
 765 #define DO_SETUP_BITS ((1<<(FRAG_ATTRIB_MAX)) - 1)
 766
 767 #endif
 768