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_INDICES                 0x4000
 135 #define BRW_NEW_VERTICES                0x8000
 136 /**
 137  * Used for any batch entry with a relocated pointer that will be used
 138  * by any 3D rendering.
 139  */
 140 #define BRW_NEW_BATCH                   0x10000
 141 /** brw->depth_region updated */
 142 #define BRW_NEW_DEPTH_BUFFER            0x20000
 143 #define BRW_NEW_NR_WM_SURFACES          0x40000
 144 #define BRW_NEW_NR_VS_SURFACES          0x80000
 145 #define BRW_NEW_INDEX_BUFFER            0x100000
 146
 147 struct brw_state_flags {
 148    /** State update flags signalled by mesa internals */
 149    GLuint mesa;
 150    /**
 151     * State update flags signalled as the result of brw_tracked_state updates
 152     */
 153    GLuint brw;
 154    /** State update flags signalled by brw_state_cache.c searches */
 155    GLuint cache;
 156 };
 157
 158
 159 /** Subclass of Mesa vertex program */
 160 struct brw_vertex_program {
 161    struct gl_vertex_program program;
 162    GLuint id;
 163    dri_bo *const_buffer;    /** Program constant buffer/surface */
 164    GLboolean use_const_buffer;
 165 };
 166
 167
 168 /** Subclass of Mesa fragment program */
 169 struct brw_fragment_program {
 170    struct gl_fragment_program program;
 171    GLuint id;  /**< serial no. to identify frag progs, never re-used */
 172    GLboolean isGLSL;  /**< really, any IF/LOOP/CONT/BREAK instructions */
 173
 174    GLboolean use_const_buffer;
 175    dri_bo *const_buffer;    /** Program constant buffer/surface */
 176
 177    /** for debugging, which texture units are referenced */
 178    GLbitfield tex_units_used;
 179 };
 180
 181
 182 /* Data about a particular attempt to compile a program.  Note that
 183  * there can be many of these, each in a different GL state
 184  * corresponding to a different brw_wm_prog_key struct, with different
 185  * compiled programs:
 186  */
 187 struct brw_wm_prog_data {
 188    GLuint curb_read_length;
 189    GLuint urb_read_length;
 190
 191    GLuint first_curbe_grf;
 192    GLuint total_grf;
 193    GLuint total_scratch;
 194
 195    GLuint nr_params;       /**< number of float params/constants */
 196    GLboolean error;
 197
 198    /* Pointer to tracked values (only valid once
 199     * _mesa_load_state_parameters has been called at runtime).
 200     */
 201    const GLfloat *param[BRW_MAX_CURBE];
 202 };
 203
 204 struct brw_sf_prog_data {
 205    GLuint urb_read_length;
 206    GLuint total_grf;
 207
 208    /* Each vertex may have upto 12 attributes, 4 components each,
 209     * except WPOS which requires only 2.  (11*4 + 2) == 44 ==> 11
 210     * rows.
 211     *
 212     * Actually we use 4 for each, so call it 12 rows.
 213     */
 214    GLuint urb_entry_size;
 215 };
 216
 217 struct brw_clip_prog_data {
 218    GLuint curb_read_length;     /* user planes? */
 219    GLuint clip_mode;
 220    GLuint urb_read_length;
 221    GLuint total_grf;
 222 };
 223
 224 struct brw_gs_prog_data {
 225    GLuint urb_read_length;
 226    GLuint total_grf;
 227 };
 228
 229 struct brw_vs_prog_data {
 230    GLuint curb_read_length;
 231    GLuint urb_read_length;
 232    GLuint total_grf;
 233    GLbitfield64 outputs_written;
 234    GLuint nr_params;       /**< number of float params/constants */
 235
 236    GLuint inputs_read;
 237
 238    /* Used for calculating urb partitions:
 239     */
 240    GLuint urb_entry_size;
 241 };
 242
 243
 244 /* Size == 0 if output either not written, or always [0,0,0,1]
 245  */
 246 struct brw_vs_ouput_sizes {
 247    GLubyte output_size[VERT_RESULT_MAX];
 248 };
 249
 250
 251 /** Number of texture sampler units */
 252 #define BRW_MAX_TEX_UNIT 16
 253
 254 /** Max number of render targets in a shader */
 255 #define BRW_MAX_DRAW_BUFFERS 4
 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 (BRW_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 (BRW_MAX_DRAW_BUFFERS)
 270 #define SURF_INDEX_TEXTURE(t)        (BRW_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_BLEND_STATE,
 286    BRW_DEPTH_STENCIL_STATE,
 287    BRW_COLOR_CALC_STATE,
 288    BRW_CC_VP,
 289    BRW_CC_UNIT,
 290    BRW_WM_PROG,
 291    BRW_SAMPLER_DEFAULT_COLOR,
 292    BRW_SAMPLER,
 293    BRW_WM_UNIT,
 294    BRW_SF_PROG,
 295    BRW_SF_VP,
 296    BRW_SF_UNIT, /* scissor state on gen6 */
 297    BRW_VS_UNIT,
 298    BRW_VS_PROG,
 299    BRW_GS_UNIT,
 300    BRW_GS_PROG,
 301    BRW_CLIP_VP,
 302    BRW_CLIP_UNIT,
 303    BRW_CLIP_PROG,
 304    BRW_SS_SURFACE,
 305    BRW_SS_SURF_BIND,
 306
 307    BRW_MAX_CACHE
 308 };
 309
 310 struct brw_cache_item {
 311    /**
 312     * Effectively part of the key, cache_id identifies what kind of state
 313     * buffer is involved, and also which brw->state.dirty.cache flag should
 314     * be set when this cache item is chosen.
 315     */
 316    enum brw_cache_id cache_id;
 317    /** 32-bit hash of the key data */
 318    GLuint hash;
 319    GLuint key_size;             /* for variable-sized keys */
 320    const void *key;
 321    dri_bo **reloc_bufs;
 322    GLuint nr_reloc_bufs;
 323
 324    dri_bo *bo;
 325
 326    struct brw_cache_item *next;
 327 };
 328
 329
 330
 331 struct brw_cache {
 332    struct brw_context *brw;
 333
 334    struct brw_cache_item **items;
 335    GLuint size, n_items;
 336
 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_BLEND_STATE            (1<<BRW_BLEND_STATE)
 361 #define CACHE_NEW_DEPTH_STENCIL_STATE    (1<<BRW_DEPTH_STENCIL_STATE)
 362 #define CACHE_NEW_COLOR_CALC_STATE       (1<<BRW_COLOR_CALC_STATE)
 363 #define CACHE_NEW_CC_VP                  (1<<BRW_CC_VP)
 364 #define CACHE_NEW_CC_UNIT                (1<<BRW_CC_UNIT)
 365 #define CACHE_NEW_WM_PROG                (1<<BRW_WM_PROG)
 366 #define CACHE_NEW_SAMPLER_DEFAULT_COLOR  (1<<BRW_SAMPLER_DEFAULT_COLOR)
 367 #define CACHE_NEW_SAMPLER                (1<<BRW_SAMPLER)
 368 #define CACHE_NEW_WM_UNIT                (1<<BRW_WM_UNIT)
 369 #define CACHE_NEW_SF_PROG                (1<<BRW_SF_PROG)
 370 #define CACHE_NEW_SF_VP                  (1<<BRW_SF_VP)
 371 #define CACHE_NEW_SF_UNIT                (1<<BRW_SF_UNIT)
 372 #define CACHE_NEW_VS_UNIT                (1<<BRW_VS_UNIT)
 373 #define CACHE_NEW_VS_PROG                (1<<BRW_VS_PROG)
 374 #define CACHE_NEW_GS_UNIT                (1<<BRW_GS_UNIT)
 375 #define CACHE_NEW_GS_PROG                (1<<BRW_GS_PROG)
 376 #define CACHE_NEW_CLIP_VP                (1<<BRW_CLIP_VP)
 377 #define CACHE_NEW_CLIP_UNIT              (1<<BRW_CLIP_UNIT)
 378 #define CACHE_NEW_CLIP_PROG              (1<<BRW_CLIP_PROG)
 379 #define CACHE_NEW_SURFACE                (1<<BRW_SS_SURFACE)
 380 #define CACHE_NEW_SURF_BIND              (1<<BRW_SS_SURF_BIND)
 381
 382 struct brw_cached_batch_item {
 383    struct header *header;
 384    GLuint sz;
 385    struct brw_cached_batch_item *next;
 386 };
 387
 388
 389
 390 /* Protect against a future where VERT_ATTRIB_MAX > 32.  Wouldn't life
 391  * be easier if C allowed arrays of packed elements?
 392  */
 393 #define ATTRIB_BIT_DWORDS  ((VERT_ATTRIB_MAX+31)/32)
 394
 395 struct brw_vertex_element {
 396    const struct gl_client_array *glarray;
 397
 398    /** The corresponding Mesa vertex attribute */
 399    gl_vert_attrib attrib;
 400    /** Size of a complete element */
 401    GLuint element_size;
 402    /** Number of uploaded elements for this input. */
 403    GLuint count;
 404    /** Byte stride between elements in the uploaded array */
 405    GLuint stride;
 406    /** Offset of the first element within the buffer object */
 407    unsigned int offset;
 408    /** Buffer object containing the uploaded vertex data */
 409    dri_bo *bo;
 410 };
 411
 412
 413
 414 struct brw_vertex_info {
 415    GLuint sizes[ATTRIB_BIT_DWORDS * 2]; /* sizes:2[VERT_ATTRIB_MAX] */
 416 };
 417
 418 struct brw_query_object {
 419    struct gl_query_object Base;
 420
 421    /** Last query BO associated with this query. */
 422    dri_bo *bo;
 423    /** First index in bo with query data for this object. */
 424    int first_index;
 425    /** Last index in bo with query data for this object. */
 426    int last_index;
 427 };
 428
 429
 430 /**
 431  * brw_context is derived from intel_context.
 432  */
 433 struct brw_context
 434 {
 435    struct intel_context intel;  /**< base class, must be first field */
 436    GLuint primitive;
 437
 438    GLboolean emit_state_always;
 439    GLboolean has_surface_tile_offset;
 440    GLboolean has_compr4;
 441    GLboolean has_negative_rhw_bug;
 442    GLboolean has_aa_line_parameters;
 443    GLboolean has_pln;
 444 ;
 445    struct {
 446       struct brw_state_flags dirty;
 447
 448       GLuint nr_color_regions;
 449       struct intel_region *color_regions[MAX_DRAW_BUFFERS];
 450       struct intel_region *depth_region;
 451
 452       /**
 453        * List of buffers accumulated in brw_validate_state to receive
 454        * dri_bo_check_aperture treatment before exec, so we can know if we
 455        * should flush the batch and try again before emitting primitives.
 456        *
 457        * This can be a fixed number as we only have a limited number of
 458        * objects referenced from the batchbuffer in a primitive emit,
 459        * consisting of the vertex buffers, pipelined state pointers,
 460        * the CURBE, the depth buffer, and a query BO.
 461        */
 462       dri_bo *validated_bos[VERT_ATTRIB_MAX + 16];
 463       int validated_bo_count;
 464    } state;
 465
 466    struct brw_cache cache;  /** non-surface items */
 467    struct brw_cache surface_cache;  /* surface items */
 468    struct brw_cached_batch_item *cached_batch_items;
 469
 470    struct {
 471       struct brw_vertex_element inputs[VERT_ATTRIB_MAX];
 472
 473       struct brw_vertex_element *enabled[VERT_ATTRIB_MAX];
 474       GLuint nr_enabled;
 475
 476 #define BRW_NR_UPLOAD_BUFS 17
 477 #define BRW_UPLOAD_INIT_SIZE (128*1024)
 478
 479       struct {
 480          dri_bo *bo;
 481          GLuint offset;
 482       } upload;
 483
 484       /* Summary of size and varying of active arrays, so we can check
 485        * for changes to this state:
 486        */
 487       struct brw_vertex_info info;
 488       unsigned int min_index, max_index;
 489    } vb;
 490
 491    struct {
 492       /**
 493        * Index buffer for this draw_prims call.
 494        *
 495        * Updates are signaled by BRW_NEW_INDICES.
 496        */
 497       const struct _mesa_index_buffer *ib;
 498
 499       /* Updates to these fields are signaled by BRW_NEW_INDEX_BUFFER. */
 500       dri_bo *bo;
 501       unsigned int offset;
 502       unsigned int size;
 503       /* Offset to index buffer index to use in CMD_3D_PRIM so that we can
 504        * avoid re-uploading the IB packet over and over if we're actually
 505        * referencing the same index buffer.
 506        */
 507       unsigned int start_vertex_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    /* hw-dependent 3DSTATE_VF_STATISTICS opcode */
 521    uint32_t CMD_VF_STATISTICS;
 522    /* hw-dependent 3DSTATE_PIPELINE_SELECT opcode */
 523    uint32_t CMD_PIPELINE_SELECT;
 524    int vs_max_threads;
 525    int wm_max_threads;
 526
 527    /* BRW_NEW_URB_ALLOCATIONS:
 528     */
 529    struct {
 530       GLuint vsize;             /* vertex size plus header in urb registers */
 531       GLuint csize;             /* constant buffer size in urb registers */
 532       GLuint sfsize;            /* setup data size in urb registers */
 533
 534       GLboolean constrained;
 535
 536       GLuint nr_vs_entries;
 537       GLuint nr_gs_entries;
 538       GLuint nr_clip_entries;
 539       GLuint nr_sf_entries;
 540       GLuint nr_cs_entries;
 541
 542       /* gen6 */
 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    } curbe;
 578
 579    struct {
 580       struct brw_vs_prog_data *prog_data;
 581       int8_t *constant_map; /* variable array following prog_data */
 582
 583       dri_bo *prog_bo;
 584       dri_bo *state_bo;
 585
 586       /** Binding table of pointers to surf_bo entries */
 587       dri_bo *bind_bo;
 588       dri_bo *surf_bo[BRW_VS_MAX_SURF];
 589       GLuint nr_surfaces;
 590    } vs;
 591
 592    struct {
 593       struct brw_gs_prog_data *prog_data;
 594
 595       GLboolean prog_active;
 596       dri_bo *prog_bo;
 597       dri_bo *state_bo;
 598    } gs;
 599
 600    struct {
 601       struct brw_clip_prog_data *prog_data;
 602
 603       dri_bo *prog_bo;
 604       dri_bo *state_bo;
 605       dri_bo *vp_bo;
 606    } clip;
 607
 608
 609    struct {
 610       struct brw_sf_prog_data *prog_data;
 611
 612       dri_bo *prog_bo;
 613       dri_bo *state_bo;
 614       dri_bo *vp_bo;
 615    } sf;
 616
 617    struct {
 618       struct brw_wm_prog_data *prog_data;
 619       struct brw_wm_compile *compile_data;
 620
 621       /** Input sizes, calculated from active vertex program.
 622        * One bit per fragment program input attribute.
 623        */
 624       GLbitfield input_size_masks[4];
 625
 626       /** Array of surface default colors (texture border color) */
 627       dri_bo *sdc_bo[BRW_MAX_TEX_UNIT];
 628
 629       GLuint render_surf;
 630       GLuint nr_surfaces;
 631
 632       GLuint max_threads;
 633       dri_bo *scratch_bo;
 634
 635       GLuint sampler_count;
 636       dri_bo *sampler_bo;
 637
 638       /** Binding table of pointers to surf_bo entries */
 639       dri_bo *bind_bo;
 640       dri_bo *surf_bo[BRW_WM_MAX_SURF];
 641
 642       dri_bo *prog_bo;
 643       dri_bo *state_bo;
 644    } wm;
 645
 646
 647    struct {
 648       /* gen4 */
 649       dri_bo *prog_bo;
 650       dri_bo *vp_bo;
 651
 652       /* gen6 */
 653       dri_bo *blend_state_bo;
 654       dri_bo *depth_stencil_state_bo;
 655       dri_bo *color_calc_state_bo;
 656
 657       dri_bo *state_bo;
 658    } cc;
 659
 660    struct {
 661       struct brw_query_object *obj;
 662       dri_bo *bo;
 663       int index;
 664       GLboolean active;
 665    } query;
 666    /* Used to give every program string a unique id
 667     */
 668    GLuint program_id;
 669 };
 670
 671
 672 #define BRW_PACKCOLOR8888(r,g,b,a)  ((r<<24) | (g<<16) | (b<<8) | a)
 673
 674
 675
 676 /*======================================================================
 677  * brw_vtbl.c
 678  */
 679 void brwInitVtbl( struct brw_context *brw );
 680
 681 /*======================================================================
 682  * brw_context.c
 683  */
 684 GLboolean brwCreateContext( int api,
 685                             const __GLcontextModes *mesaVis,
 686                             __DRIcontext *driContextPriv,
 687                             void *sharedContextPrivate);
 688
 689 /*======================================================================
 690  * brw_queryobj.c
 691  */
 692 void brw_init_queryobj_functions(struct dd_function_table *functions);
 693 void brw_prepare_query_begin(struct brw_context *brw);
 694 void brw_emit_query_begin(struct brw_context *brw);
 695 void brw_emit_query_end(struct brw_context *brw);
 696
 697 /*======================================================================
 698  * brw_state_dump.c
 699  */
 700 void brw_debug_batch(struct intel_context *intel);
 701
 702 /*======================================================================
 703  * brw_tex.c
 704  */
 705 void brw_validate_textures( struct brw_context *brw );
 706
 707
 708 /*======================================================================
 709  * brw_program.c
 710  */
 711 void brwInitFragProgFuncs( struct dd_function_table *functions );
 712
 713
 714 /* brw_urb.c
 715  */
 716 void brw_upload_urb_fence(struct brw_context *brw);
 717
 718 /* brw_curbe.c
 719  */
 720 void brw_upload_cs_urb_state(struct brw_context *brw);
 721
 722 /* brw_disasm.c */
 723 int brw_disasm (FILE *file, struct brw_instruction *inst, int gen);
 724
 725 /*======================================================================
 726  * Inline conversion functions.  These are better-typed than the
 727  * macros used previously:
 728  */
 729 static INLINE struct brw_context *
 730 brw_context( GLcontext *ctx )
 731 {
 732    return (struct brw_context *)ctx;
 733 }
 734
 735 static INLINE struct brw_vertex_program *
 736 brw_vertex_program(struct gl_vertex_program *p)
 737 {
 738    return (struct brw_vertex_program *) p;
 739 }
 740
 741 static INLINE const struct brw_vertex_program *
 742 brw_vertex_program_const(const struct gl_vertex_program *p)
 743 {
 744    return (const struct brw_vertex_program *) p;
 745 }
 746
 747 static INLINE struct brw_fragment_program *
 748 brw_fragment_program(struct gl_fragment_program *p)
 749 {
 750    return (struct brw_fragment_program *) p;
 751 }
 752
 753 static INLINE const struct brw_fragment_program *
 754 brw_fragment_program_const(const struct gl_fragment_program *p)
 755 {
 756    return (const struct brw_fragment_program *) p;
 757 }
 758
 759 #endif
 760