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_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_PSP                     0x800
 133 #define BRW_NEW_WM_SURFACES             0x1000
 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 #define BRW_NEW_INDEX_BUFFER            0x100000
 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    GLboolean use_const_buffer;
 176    dri_bo *const_buffer;    /** Program constant buffer/surface */
 177
 178    /** for debugging, which texture units are referenced */
 179    GLbitfield tex_units_used;
 180 };
 181
 182
 183 /* Data about a particular attempt to compile a program.  Note that
 184  * there can be many of these, each in a different GL state
 185  * corresponding to a different brw_wm_prog_key struct, with different
 186  * compiled programs:
 187  */
 188 struct brw_wm_prog_data {
 189    GLuint curb_read_length;
 190    GLuint urb_read_length;
 191
 192    GLuint first_curbe_grf;
 193    GLuint total_grf;
 194    GLuint total_scratch;
 195
 196    GLuint nr_params;       /**< number of float params/constants */
 197    GLboolean error;
 198
 199    /* Pointer to tracked values (only valid once
 200     * _mesa_load_state_parameters has been called at runtime).
 201     */
 202    const GLfloat *param[BRW_MAX_CURBE];
 203 };
 204
 205 struct brw_sf_prog_data {
 206    GLuint urb_read_length;
 207    GLuint total_grf;
 208
 209    /* Each vertex may have upto 12 attributes, 4 components each,
 210     * except WPOS which requires only 2.  (11*4 + 2) == 44 ==> 11
 211     * rows.
 212     *
 213     * Actually we use 4 for each, so call it 12 rows.
 214     */
 215    GLuint urb_entry_size;
 216 };
 217
 218 struct brw_clip_prog_data {
 219    GLuint curb_read_length;     /* user planes? */
 220    GLuint clip_mode;
 221    GLuint urb_read_length;
 222    GLuint total_grf;
 223 };
 224
 225 struct brw_gs_prog_data {
 226    GLuint urb_read_length;
 227    GLuint total_grf;
 228 };
 229
 230 struct brw_vs_prog_data {
 231    GLuint curb_read_length;
 232    GLuint urb_read_length;
 233    GLuint total_grf;
 234    GLbitfield64 outputs_written;
 235    GLuint nr_params;       /**< number of float params/constants */
 236
 237    GLuint inputs_read;
 238
 239    /* Used for calculating urb partitions:
 240     */
 241    GLuint urb_entry_size;
 242 };
 243
 244
 245 /* Size == 0 if output either not written, or always [0,0,0,1]
 246  */
 247 struct brw_vs_ouput_sizes {
 248    GLubyte output_size[VERT_RESULT_MAX];
 249 };
 250
 251
 252 /** Number of texture sampler units */
 253 #define BRW_MAX_TEX_UNIT 16
 254
 255 /** Max number of render targets in a shader */
 256 #define BRW_MAX_DRAW_BUFFERS 4
 257
 258 /**
 259  * Size of our surface binding table for the WM.
 260  * This contains pointers to the drawing surfaces and current texture
 261  * objects and shader constant buffers (+2).
 262  */
 263 #define BRW_WM_MAX_SURF (BRW_MAX_DRAW_BUFFERS + BRW_MAX_TEX_UNIT + 1)
 264
 265 /**
 266  * Helpers to convert drawing buffers, textures and constant buffers
 267  * to surface binding table indexes, for WM.
 268  */
 269 #define SURF_INDEX_DRAW(d)           (d)
 270 #define SURF_INDEX_FRAG_CONST_BUFFER (BRW_MAX_DRAW_BUFFERS)
 271 #define SURF_INDEX_TEXTURE(t)        (BRW_MAX_DRAW_BUFFERS + 1 + (t))
 272
 273 /**
 274  * Size of surface binding table for the VS.
 275  * Only one constant buffer for now.
 276  */
 277 #define BRW_VS_MAX_SURF 1
 278
 279 /**
 280  * Only a VS constant buffer
 281  */
 282 #define SURF_INDEX_VERT_CONST_BUFFER 0
 283
 284
 285 enum brw_cache_id {
 286    BRW_CC_VP,
 287    BRW_CC_UNIT,
 288    BRW_WM_PROG,
 289    BRW_SAMPLER_DEFAULT_COLOR,
 290    BRW_SAMPLER,
 291    BRW_WM_UNIT,
 292    BRW_SF_PROG,
 293    BRW_SF_VP,
 294    BRW_SF_UNIT,
 295    BRW_VS_UNIT,
 296    BRW_VS_PROG,
 297    BRW_GS_UNIT,
 298    BRW_GS_PROG,
 299    BRW_CLIP_VP,
 300    BRW_CLIP_UNIT,
 301    BRW_CLIP_PROG,
 302    BRW_SS_SURFACE,
 303    BRW_SS_SURF_BIND,
 304
 305    BRW_MAX_CACHE
 306 };
 307
 308 struct brw_cache_item {
 309    /**
 310     * Effectively part of the key, cache_id identifies what kind of state
 311     * buffer is involved, and also which brw->state.dirty.cache flag should
 312     * be set when this cache item is chosen.
 313     */
 314    enum brw_cache_id cache_id;
 315    /** 32-bit hash of the key data */
 316    GLuint hash;
 317    GLuint key_size;             /* for variable-sized keys */
 318    const void *key;
 319    dri_bo **reloc_bufs;
 320    GLuint nr_reloc_bufs;
 321
 322    dri_bo *bo;
 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 aux_size[BRW_MAX_CACHE];
 336    char *name[BRW_MAX_CACHE];
 337
 338    /* Record of the last BOs chosen for each cache_id.  Used to set
 339     * brw->state.dirty.cache when a new cache item is chosen.
 340     */
 341    dri_bo *last_bo[BRW_MAX_CACHE];
 342 };
 343
 344
 345 /* Considered adding a member to this struct to document which flags
 346  * an update might raise so that ordering of the state atoms can be
 347  * checked or derived at runtime.  Dropped the idea in favor of having
 348  * a debug mode where the state is monitored for flags which are
 349  * raised that have already been tested against.
 350  */
 351 struct brw_tracked_state {
 352    struct brw_state_flags dirty;
 353    void (*prepare)( struct brw_context *brw );
 354    void (*emit)( struct brw_context *brw );
 355 };
 356
 357 /* Flags for brw->state.cache.
 358  */
 359 #define CACHE_NEW_CC_VP                  (1<<BRW_CC_VP)
 360 #define CACHE_NEW_CC_UNIT                (1<<BRW_CC_UNIT)
 361 #define CACHE_NEW_WM_PROG                (1<<BRW_WM_PROG)
 362 #define CACHE_NEW_SAMPLER_DEFAULT_COLOR  (1<<BRW_SAMPLER_DEFAULT_COLOR)
 363 #define CACHE_NEW_SAMPLER                (1<<BRW_SAMPLER)
 364 #define CACHE_NEW_WM_UNIT                (1<<BRW_WM_UNIT)
 365 #define CACHE_NEW_SF_PROG                (1<<BRW_SF_PROG)
 366 #define CACHE_NEW_SF_VP                  (1<<BRW_SF_VP)
 367 #define CACHE_NEW_SF_UNIT                (1<<BRW_SF_UNIT)
 368 #define CACHE_NEW_VS_UNIT                (1<<BRW_VS_UNIT)
 369 #define CACHE_NEW_VS_PROG                (1<<BRW_VS_PROG)
 370 #define CACHE_NEW_GS_UNIT                (1<<BRW_GS_UNIT)
 371 #define CACHE_NEW_GS_PROG                (1<<BRW_GS_PROG)
 372 #define CACHE_NEW_CLIP_VP                (1<<BRW_CLIP_VP)
 373 #define CACHE_NEW_CLIP_UNIT              (1<<BRW_CLIP_UNIT)
 374 #define CACHE_NEW_CLIP_PROG              (1<<BRW_CLIP_PROG)
 375 #define CACHE_NEW_SURFACE                (1<<BRW_SS_SURFACE)
 376 #define CACHE_NEW_SURF_BIND              (1<<BRW_SS_SURF_BIND)
 377
 378 struct brw_cached_batch_item {
 379    struct header *header;
 380    GLuint sz;
 381    struct brw_cached_batch_item *next;
 382 };
 383
 384
 385
 386 /* Protect against a future where VERT_ATTRIB_MAX > 32.  Wouldn't life
 387  * be easier if C allowed arrays of packed elements?
 388  */
 389 #define ATTRIB_BIT_DWORDS  ((VERT_ATTRIB_MAX+31)/32)
 390
 391 struct brw_vertex_element {
 392    const struct gl_client_array *glarray;
 393
 394    /** The corresponding Mesa vertex attribute */
 395    gl_vert_attrib attrib;
 396    /** Size of a complete element */
 397    GLuint element_size;
 398    /** Number of uploaded elements for this input. */
 399    GLuint count;
 400    /** Byte stride between elements in the uploaded array */
 401    GLuint stride;
 402    /** Offset of the first element within the buffer object */
 403    unsigned int offset;
 404    /** Buffer object containing the uploaded vertex data */
 405    dri_bo *bo;
 406 };
 407
 408
 409
 410 struct brw_vertex_info {
 411    GLuint sizes[ATTRIB_BIT_DWORDS * 2]; /* sizes:2[VERT_ATTRIB_MAX] */
 412 };
 413
 414 struct brw_query_object {
 415    struct gl_query_object Base;
 416
 417    /** Doubly linked list of active query objects in the context. */
 418    struct brw_query_object *prev, *next;
 419
 420    /** Last query BO associated with this query. */
 421    dri_bo *bo;
 422    /** First index in bo with query data for this object. */
 423    int first_index;
 424    /** Last index in bo with query data for this object. */
 425    int last_index;
 426
 427    /* Total count of pixels from previous BOs */
 428    unsigned int count;
 429 };
 430
 431
 432 /**
 433  * brw_context is derived from intel_context.
 434  */
 435 struct brw_context
 436 {
 437    struct intel_context intel;  /**< base class, must be first field */
 438    GLuint primitive;
 439
 440    GLboolean emit_state_always;
 441    GLboolean has_surface_tile_offset;
 442    GLboolean has_compr4;
 443    GLboolean has_negative_rhw_bug;
 444    GLboolean has_aa_line_parameters;
 445 ;
 446    struct {
 447       struct brw_state_flags dirty;
 448
 449       GLuint nr_color_regions;
 450       struct intel_region *color_regions[MAX_DRAW_BUFFERS];
 451       struct intel_region *depth_region;
 452
 453       /**
 454        * List of buffers accumulated in brw_validate_state to receive
 455        * dri_bo_check_aperture treatment before exec, so we can know if we
 456        * should flush the batch and try again before emitting primitives.
 457        *
 458        * This can be a fixed number as we only have a limited number of
 459        * objects referenced from the batchbuffer in a primitive emit,
 460        * consisting of the vertex buffers, pipelined state pointers,
 461        * the CURBE, the depth buffer, and a query BO.
 462        */
 463       dri_bo *validated_bos[VERT_ATTRIB_MAX + 16];
 464       int validated_bo_count;
 465    } state;
 466
 467    struct brw_cache cache;  /** non-surface items */
 468    struct brw_cache surface_cache;  /* surface items */
 469    struct brw_cached_batch_item *cached_batch_items;
 470
 471    struct {
 472       struct brw_vertex_element inputs[VERT_ATTRIB_MAX];
 473
 474       struct brw_vertex_element *enabled[VERT_ATTRIB_MAX];
 475       GLuint nr_enabled;
 476
 477 #define BRW_NR_UPLOAD_BUFS 17
 478 #define BRW_UPLOAD_INIT_SIZE (128*1024)
 479
 480       struct {
 481          dri_bo *bo;
 482          GLuint offset;
 483       } upload;
 484
 485       /* Summary of size and varying of active arrays, so we can check
 486        * for changes to this state:
 487        */
 488       struct brw_vertex_info info;
 489       unsigned int min_index, max_index;
 490    } vb;
 491
 492    struct {
 493       /**
 494        * Index buffer for this draw_prims call.
 495        *
 496        * Updates are signaled by BRW_NEW_INDICES.
 497        */
 498       const struct _mesa_index_buffer *ib;
 499
 500       /* Updates to these fields are signaled by BRW_NEW_INDEX_BUFFER. */
 501       dri_bo *bo;
 502       unsigned int offset;
 503       unsigned int size;
 504       /* Offset to index buffer index to use in CMD_3D_PRIM so that we can
 505        * avoid re-uploading the IB packet over and over if we're actually
 506        * referencing the same index buffer.
 507        */
 508       unsigned int start_vertex_offset;
 509    } ib;
 510
 511    /* Active vertex program:
 512     */
 513    const struct gl_vertex_program *vertex_program;
 514    const struct gl_fragment_program *fragment_program;
 515
 516
 517    /* For populating the gtt:
 518     */
 519    GLuint next_free_page;
 520
 521    /* hw-dependent 3DSTATE_VF_STATISTICS opcode */
 522    uint32_t CMD_VF_STATISTICS;
 523    /* hw-dependent 3DSTATE_PIPELINE_SELECT opcode */
 524    uint32_t CMD_PIPELINE_SELECT;
 525    int vs_max_threads;
 526    int wm_max_threads;
 527
 528    /* BRW_NEW_URB_ALLOCATIONS:
 529     */
 530    struct {
 531       GLuint vsize;             /* vertex size plus header in urb registers */
 532       GLuint csize;             /* constant buffer size in urb registers */
 533       GLuint sfsize;            /* setup data size in urb registers */
 534
 535       GLboolean constrained;
 536
 537       GLuint nr_vs_entries;
 538       GLuint nr_gs_entries;
 539       GLuint nr_clip_entries;
 540       GLuint nr_sf_entries;
 541       GLuint nr_cs_entries;
 542
 543 /*       GLuint vs_size; */
 544 /*       GLuint gs_size; */
 545 /*       GLuint clip_size; */
 546 /*       GLuint sf_size; */
 547 /*       GLuint cs_size; */
 548
 549       GLuint vs_start;
 550       GLuint gs_start;
 551       GLuint clip_start;
 552       GLuint sf_start;
 553       GLuint cs_start;
 554       GLuint size; /* Hardware URB size, in KB. */
 555    } urb;
 556
 557
 558    /* BRW_NEW_CURBE_OFFSETS:
 559     */
 560    struct {
 561       GLuint wm_start;  /**< pos of first wm const in CURBE buffer */
 562       GLuint wm_size;   /**< number of float[4] consts, multiple of 16 */
 563       GLuint clip_start;
 564       GLuint clip_size;
 565       GLuint vs_start;
 566       GLuint vs_size;
 567       GLuint total_size;
 568
 569       dri_bo *curbe_bo;
 570       /** Offset within curbe_bo of space for current curbe entry */
 571       GLuint curbe_offset;
 572       /** Offset within curbe_bo of space for next curbe entry */
 573       GLuint curbe_next_offset;
 574
 575       GLfloat *last_buf;
 576       GLuint last_bufsz;
 577       /**
 578        *  Whether we should create a new bo instead of reusing the old one
 579        * (if we just dispatch the batch pointing at the old one.
 580        */
 581       GLboolean need_new_bo;
 582    } curbe;
 583
 584    struct {
 585       struct brw_vs_prog_data *prog_data;
 586
 587       dri_bo *prog_bo;
 588       dri_bo *state_bo;
 589
 590       /** Binding table of pointers to surf_bo entries */
 591       dri_bo *bind_bo;
 592       dri_bo *surf_bo[BRW_VS_MAX_SURF];
 593       GLuint nr_surfaces;
 594    } vs;
 595
 596    struct {
 597       struct brw_gs_prog_data *prog_data;
 598
 599       GLboolean prog_active;
 600       dri_bo *prog_bo;
 601       dri_bo *state_bo;
 602    } gs;
 603
 604    struct {
 605       struct brw_clip_prog_data *prog_data;
 606
 607       dri_bo *prog_bo;
 608       dri_bo *state_bo;
 609       dri_bo *vp_bo;
 610    } clip;
 611
 612
 613    struct {
 614       struct brw_sf_prog_data *prog_data;
 615
 616       dri_bo *prog_bo;
 617       dri_bo *state_bo;
 618       dri_bo *vp_bo;
 619    } sf;
 620
 621    struct {
 622       struct brw_wm_prog_data *prog_data;
 623       struct brw_wm_compile *compile_data;
 624
 625       /** Input sizes, calculated from active vertex program.
 626        * One bit per fragment program input attribute.
 627        */
 628       GLbitfield input_size_masks[4];
 629
 630       /** Array of surface default colors (texture border color) */
 631       dri_bo *sdc_bo[BRW_MAX_TEX_UNIT];
 632
 633       GLuint render_surf;
 634       GLuint nr_surfaces;
 635
 636       GLuint max_threads;
 637       dri_bo *scratch_bo;
 638
 639       GLuint sampler_count;
 640       dri_bo *sampler_bo;
 641
 642       /** Binding table of pointers to surf_bo entries */
 643       dri_bo *bind_bo;
 644       dri_bo *surf_bo[BRW_WM_MAX_SURF];
 645
 646       dri_bo *prog_bo;
 647       dri_bo *state_bo;
 648    } wm;
 649
 650
 651    struct {
 652       dri_bo *prog_bo;
 653       dri_bo *state_bo;
 654       dri_bo *vp_bo;
 655    } cc;
 656
 657    struct {
 658       struct brw_query_object active_head;
 659       dri_bo *bo;
 660       int index;
 661       GLboolean active;
 662    } query;
 663    /* Used to give every program string a unique id
 664     */
 665    GLuint program_id;
 666 };
 667
 668
 669 #define BRW_PACKCOLOR8888(r,g,b,a)  ((r<<24) | (g<<16) | (b<<8) | a)
 670
 671
 672
 673 /*======================================================================
 674  * brw_vtbl.c
 675  */
 676 void brwInitVtbl( struct brw_context *brw );
 677
 678 /*======================================================================
 679  * brw_context.c
 680  */
 681 GLboolean brwCreateContext( const __GLcontextModes *mesaVis,
 682                             __DRIcontextPrivate *driContextPriv,
 683                             void *sharedContextPrivate);
 684
 685 /*======================================================================
 686  * brw_queryobj.c
 687  */
 688 void brw_init_queryobj_functions(struct dd_function_table *functions);
 689 void brw_prepare_query_begin(struct brw_context *brw);
 690 void brw_emit_query_begin(struct brw_context *brw);
 691 void brw_emit_query_end(struct brw_context *brw);
 692
 693 /*======================================================================
 694  * brw_state_dump.c
 695  */
 696 void brw_debug_batch(struct intel_context *intel);
 697
 698 /*======================================================================
 699  * brw_tex.c
 700  */
 701 void brw_validate_textures( struct brw_context *brw );
 702
 703
 704 /*======================================================================
 705  * brw_program.c
 706  */
 707 void brwInitFragProgFuncs( struct dd_function_table *functions );
 708
 709
 710 /* brw_urb.c
 711  */
 712 void brw_upload_urb_fence(struct brw_context *brw);
 713
 714 /* brw_curbe.c
 715  */
 716 void brw_upload_cs_urb_state(struct brw_context *brw);
 717
 718 /* brw_disasm.c */
 719 int brw_disasm (FILE *file, struct brw_instruction *inst);
 720
 721 /*======================================================================
 722  * Inline conversion functions.  These are better-typed than the
 723  * macros used previously:
 724  */
 725 static INLINE struct brw_context *
 726 brw_context( GLcontext *ctx )
 727 {
 728    return (struct brw_context *)ctx;
 729 }
 730
 731 static INLINE struct brw_vertex_program *
 732 brw_vertex_program(struct gl_vertex_program *p)
 733 {
 734    return (struct brw_vertex_program *) p;
 735 }
 736
 737 static INLINE const struct brw_vertex_program *
 738 brw_vertex_program_const(const struct gl_vertex_program *p)
 739 {
 740    return (const struct brw_vertex_program *) p;
 741 }
 742
 743 static INLINE struct brw_fragment_program *
 744 brw_fragment_program(struct gl_fragment_program *p)
 745 {
 746    return (struct brw_fragment_program *) p;
 747 }
 748
 749 static INLINE const struct brw_fragment_program *
 750 brw_fragment_program_const(const struct gl_fragment_program *p)
 751 {
 752    return (const struct brw_fragment_program *) p;
 753 }
 754
 755 #endif
 756