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