src/gallium/drivers/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 "brw_structs.h"
  37 #include "brw_winsys.h"
  38 #include "brw_reg.h"
  39 #include "pipe/p_state.h"
  40 #include "pipe/p_context.h"
  41 #include "tgsi/tgsi_scan.h"
  42
  43
  44 /* Glossary:
  45  *
  46  * URB - uniform resource buffer.  A mid-sized buffer which is
  47  * partitioned between the fixed function units and used for passing
  48  * values (vertices, primitives, constants) between them.
  49  *
  50  * CURBE - constant URB entry.  An urb region (entry) used to hold
  51  * constant values which the fixed function units can be instructed to
  52  * preload into the GRF when spawning a thread.
  53  *
  54  * VUE - vertex URB entry.  An urb entry holding a vertex and usually
  55  * a vertex header.  The header contains control information and
  56  * things like primitive type, Begin/end flags and clip codes.
  57  *
  58  * PUE - primitive URB entry.  An urb entry produced by the setup (SF)
  59  * unit holding rasterization and interpolation parameters.
  60  *
  61  * GRF - general register file.  One of several register files
  62  * addressable by programmed threads.  The inputs (r0, payload, curbe,
  63  * urb) of the thread are preloaded to this area before the thread is
  64  * spawned.  The registers are individually 8 dwords wide and suitable
  65  * for general usage.  Registers holding thread input values are not
  66  * special and may be overwritten.
  67  *
  68  * MRF - message register file.  Threads communicate (and terminate)
  69  * by sending messages.  Message parameters are placed in contiguous
  70  * MRF registers.  All program output is via these messages.  URB
  71  * entries are populated by sending a message to the shared URB
  72  * function containing the new data, together with a control word,
  73  * often an unmodified copy of R0.
  74  *
  75  * R0 - GRF register 0.  Typically holds control information used when
  76  * sending messages to other threads.
  77  *
  78  * EU or GEN4 EU: The name of the programmable subsystem of the
  79  * i965 hardware.  Threads are executed by the EU, the registers
  80  * described above are part of the EU architecture.
  81  *
  82  * Fixed function units:
  83  *
  84  * CS - Command streamer.  Notional first unit, little software
  85  * interaction.  Holds the URB entries used for constant data, ie the
  86  * CURBEs.
  87  *
  88  * VF/VS - Vertex Fetch / Vertex Shader.  The fixed function part of
  89  * this unit is responsible for pulling vertices out of vertex buffers
  90  * in vram and injecting them into the processing pipe as VUEs.  If
  91  * enabled, it first passes them to a VS thread which is a good place
  92  * for the driver to implement any active vertex shader.
  93  *
  94  * GS - Geometry Shader.  This corresponds to a new DX10 concept.  If
  95  * enabled, incoming strips etc are passed to GS threads in individual
  96  * line/triangle/point units.  The GS thread may perform arbitary
  97  * computation and emit whatever primtives with whatever vertices it
  98  * chooses.  This makes GS an excellent place to implement GL's
  99  * unfilled polygon modes, though of course it is capable of much
 100  * more.  Additionally, GS is used to translate away primitives not
 101  * handled by latter units, including Quads and Lineloops.
 102  *
 103  * CS - Clipper.  Mesa's clipping algorithms are imported to run on
 104  * this unit.  The fixed function part performs cliptesting against
 105  * the 6 fixed clipplanes and makes decisions on whether or not the
 106  * incoming primitive needs to be passed to a thread for clipping.
 107  * User clip planes are handled via cooperation with the VS thread.
 108  *
 109  * SF - Strips Fans or Setup: Triangles are prepared for
 110  * rasterization.  Interpolation coefficients are calculated.
 111  * Flatshading and two-side lighting usually performed here.
 112  *
 113  * WM - Windower.  Interpolation of vertex attributes performed here.
 114  * Fragment shader implemented here.  SIMD aspects of EU taken full
 115  * advantage of, as pixels are processed in blocks of 16.
 116  *
 117  * CC - Color Calculator.  No EU threads associated with this unit.
 118  * Handles blending and (presumably) depth and stencil testing.
 119  */
 120
 121 #define BRW_MAX_CURBE                    (32*16)
 122
 123 struct brw_context;
 124
 125 struct brw_depth_stencil_state {
 126    /* Precalculated hardware state:
 127     */
 128    struct brw_cc0 cc0;
 129    struct brw_cc1 cc1;
 130    struct brw_cc2 cc2;
 131    struct brw_cc3 cc3;
 132    struct brw_cc7 cc7;
 133
 134    unsigned iz_lookup;
 135 };
 136
 137
 138 struct brw_blend_state {
 139    /* Precalculated hardware state:
 140     */
 141    struct brw_cc2 cc2;
 142    struct brw_cc3 cc3;
 143    struct brw_cc5 cc5;
 144    struct brw_cc6 cc6;
 145
 146    struct brw_surf_ss0 ss0;
 147 };
 148
 149
 150 struct brw_rasterizer_state;
 151
 152
 153 struct brw_vertex_shader {
 154    const struct tgsi_token *tokens;
 155    struct tgsi_shader_info info;
 156
 157    unsigned id;
 158    struct brw_winsys_buffer *const_buffer;    /** Program constant buffer/surface */
 159    GLboolean use_const_buffer;
 160 };
 161
 162
 163 struct brw_fragment_shader {
 164    const struct tgsi_token *tokens;
 165    struct tgsi_shader_info info;
 166
 167    unsigned iz_lookup;
 168    //unsigned wm_lookup;
 169
 170    unsigned  uses_depth:1;
 171    unsigned  has_flow_control:1;
 172
 173    unsigned id;
 174    struct brw_winsys_buffer *const_buffer;    /** Program constant buffer/surface */
 175    GLboolean use_const_buffer;
 176 };
 177
 178
 179 struct brw_sampler {
 180    float border_color[4];
 181    struct brw_ss0 ss0;
 182    struct brw_ss1 ss1;
 183    struct brw_ss3 ss3;
 184 };
 185
 186
 187
 188 #define PIPE_NEW_DEPTH_STENCIL_ALPHA    0x1
 189 #define PIPE_NEW_RAST                   0x2
 190 #define PIPE_NEW_BLEND                  0x4
 191 #define PIPE_NEW_VIEWPORT               0x8
 192 #define PIPE_NEW_SAMPLERS               0x10
 193 #define PIPE_NEW_VERTEX_BUFFER          0x20
 194 #define PIPE_NEW_VERTEX_ELEMENT         0x40
 195 #define PIPE_NEW_FRAGMENT_SHADER        0x80
 196 #define PIPE_NEW_VERTEX_SHADER          0x100
 197 #define PIPE_NEW_FRAGMENT_CONSTANTS     0x200
 198 #define PIPE_NEW_VERTEX_CONSTANTS       0x400
 199 #define PIPE_NEW_CLIP                   0x800
 200 #define PIPE_NEW_INDEX_BUFFER           0x1000
 201 #define PIPE_NEW_INDEX_RANGE            0x2000
 202 #define PIPE_NEW_BLEND_COLOR            0x4000
 203 #define PIPE_NEW_POLYGON_STIPPLE        0x8000
 204 #define PIPE_NEW_FRAMEBUFFER_DIMENSIONS 0x10000
 205 #define PIPE_NEW_DEPTH_BUFFER           0x20000
 206 #define PIPE_NEW_COLOR_BUFFERS          0x40000
 207 #define PIPE_NEW_QUERY                  0x80000
 208 #define PIPE_NEW_SCISSOR                0x100000
 209 #define PIPE_NEW_BOUND_TEXTURES         0x200000
 210
 211
 212
 213 #define BRW_NEW_URB_FENCE               0x1
 214 #define BRW_NEW_FRAGMENT_PROGRAM        0x2
 215 #define BRW_NEW_VERTEX_PROGRAM          0x4
 216 #define BRW_NEW_INPUT_DIMENSIONS        0x8
 217 #define BRW_NEW_CURBE_OFFSETS           0x10
 218 #define BRW_NEW_REDUCED_PRIMITIVE       0x20
 219 #define BRW_NEW_PRIMITIVE               0x40
 220 #define BRW_NEW_CONTEXT                 0x80
 221 #define BRW_NEW_WM_INPUT_DIMENSIONS     0x100
 222 #define BRW_NEW_PSP                     0x800
 223 #define BRW_NEW_WM_SURFACES             0x1000
 224 #define BRW_NEW_xxx                     0x2000 /* was FENCE */
 225 #define BRW_NEW_INDICES                 0x4000
 226 #define BRW_NEW_VERTICES                0x8000
 227 /**
 228  * Used for any batch entry with a relocated pointer that will be used
 229  * by any 3D rendering.  Need to re-emit these fresh in each
 230  * batchbuffer as the referenced buffers may be relocated in the
 231  * meantime.
 232  */
 233 #define BRW_NEW_BATCH                   0x10000
 234 #define BRW_NEW_NR_WM_SURFACES          0x40000
 235 #define BRW_NEW_NR_VS_SURFACES          0x80000
 236 #define BRW_NEW_INDEX_BUFFER            0x100000
 237
 238 struct brw_state_flags {
 239    /** State update flags signalled by mesa internals */
 240    GLuint mesa;
 241    /**
 242     * State update flags signalled as the result of brw_tracked_state updates
 243     */
 244    GLuint brw;
 245    /** State update flags signalled by brw_state_cache.c searches */
 246    GLuint cache;
 247 };
 248
 249
 250
 251 /* Data about a particular attempt to compile a program.  Note that
 252  * there can be many of these, each in a different GL state
 253  * corresponding to a different brw_wm_prog_key struct, with different
 254  * compiled programs:
 255  */
 256 struct brw_wm_prog_data {
 257    GLuint curb_read_length;
 258    GLuint urb_read_length;
 259
 260    GLuint first_curbe_grf;
 261    GLuint total_grf;
 262    GLuint total_scratch;
 263
 264    GLuint nr_params;       /**< number of float params/constants */
 265    GLboolean error;
 266
 267    /* Pointer to tracked values (only valid once
 268     * _mesa_load_state_parameters has been called at runtime).
 269     */
 270    const GLfloat *param[BRW_MAX_CURBE];
 271 };
 272
 273 struct brw_sf_prog_data {
 274    GLuint urb_read_length;
 275    GLuint total_grf;
 276
 277    /* Each vertex may have upto 12 attributes, 4 components each,
 278     * except WPOS which requires only 2.  (11*4 + 2) == 44 ==> 11
 279     * rows.
 280     *
 281     * Actually we use 4 for each, so call it 12 rows.
 282     */
 283    GLuint urb_entry_size;
 284 };
 285
 286
 287 struct brw_clip_prog_data;
 288
 289 struct brw_gs_prog_data {
 290    GLuint urb_read_length;
 291    GLuint total_grf;
 292 };
 293
 294 struct brw_vs_prog_data {
 295    GLuint curb_read_length;
 296    GLuint urb_read_length;
 297    GLuint total_grf;
 298
 299    GLuint nr_outputs;
 300    GLuint nr_inputs;
 301
 302    GLuint nr_params;       /**< number of TGSI_FILE_CONSTANT's */
 303
 304    GLboolean copy_edgeflag;
 305    GLboolean writes_psiz;
 306
 307    /* Used for calculating urb partitions:
 308     */
 309    GLuint urb_entry_size;
 310 };
 311
 312
 313 /* Size == 0 if output either not written, or always [0,0,0,1]
 314  */
 315 struct brw_vs_ouput_sizes {
 316    GLubyte output_size[PIPE_MAX_SHADER_OUTPUTS];
 317 };
 318
 319
 320 /** Number of texture sampler units */
 321 #define BRW_MAX_TEX_UNIT 16
 322
 323 /**
 324  * Size of our surface binding table for the WM.
 325  * This contains pointers to the drawing surfaces and current texture
 326  * objects and shader constant buffers (+2).
 327  */
 328 #define BRW_WM_MAX_SURF (PIPE_MAX_COLOR_BUFS + BRW_MAX_TEX_UNIT + 1)
 329
 330 /**
 331  * Helpers to convert drawing buffers, textures and constant buffers
 332  * to surface binding table indexes, for WM.
 333  */
 334 #define SURF_INDEX_DRAW(d)           (d)
 335 #define SURF_INDEX_FRAG_CONST_BUFFER (PIPE_MAX_COLOR_BUFS)
 336 #define SURF_INDEX_TEXTURE(t)        (PIPE_MAX_COLOR_BUFS + 1 + (t))
 337
 338 /**
 339  * Size of surface binding table for the VS.
 340  * Only one constant buffer for now.
 341  */
 342 #define BRW_VS_MAX_SURF 1
 343
 344 /**
 345  * Only a VS constant buffer
 346  */
 347 #define SURF_INDEX_VERT_CONST_BUFFER 0
 348
 349
 350 enum brw_cache_id {
 351    BRW_CC_VP,
 352    BRW_CC_UNIT,
 353    BRW_WM_PROG,
 354    BRW_SAMPLER_DEFAULT_COLOR,
 355    BRW_SAMPLER,
 356    BRW_WM_UNIT,
 357    BRW_SF_PROG,
 358    BRW_SF_VP,
 359    BRW_SF_UNIT,
 360    BRW_VS_UNIT,
 361    BRW_VS_PROG,
 362    BRW_GS_UNIT,
 363    BRW_GS_PROG,
 364    BRW_CLIP_VP,
 365    BRW_CLIP_UNIT,
 366    BRW_CLIP_PROG,
 367    BRW_SS_SURFACE,
 368    BRW_SS_SURF_BIND,
 369
 370    BRW_MAX_CACHE
 371 };
 372
 373 struct brw_cache_item {
 374    /**
 375     * Effectively part of the key, cache_id identifies what kind of state
 376     * buffer is involved, and also which brw->state.dirty.cache flag should
 377     * be set when this cache item is chosen.
 378     */
 379    enum brw_cache_id cache_id;
 380    /** 32-bit hash of the key data */
 381    GLuint hash;
 382    GLuint key_size;             /* for variable-sized keys */
 383    const void *key;
 384    struct brw_winsys_buffer **reloc_bufs;
 385    GLuint nr_reloc_bufs;
 386
 387    struct brw_winsys_buffer *bo;
 388    GLuint data_size;
 389
 390    struct brw_cache_item *next;
 391 };
 392
 393
 394
 395 struct brw_cache {
 396    struct brw_context *brw;
 397    struct brw_winsys_screen *sws;
 398
 399    struct brw_cache_item **items;
 400    GLuint size, n_items;
 401
 402    GLuint key_size[BRW_MAX_CACHE];              /* for fixed-size keys */
 403    GLuint aux_size[BRW_MAX_CACHE];
 404    char *name[BRW_MAX_CACHE];
 405
 406
 407    /* Record of the last BOs chosen for each cache_id.  Used to set
 408     * brw->state.dirty.cache when a new cache item is chosen.
 409     */
 410    struct brw_winsys_buffer *last_bo[BRW_MAX_CACHE];
 411 };
 412
 413
 414 struct brw_tracked_state {
 415    struct brw_state_flags dirty;
 416    int (*prepare)( struct brw_context *brw );
 417    int (*emit)( struct brw_context *brw );
 418 };
 419
 420 /* Flags for brw->state.cache.
 421  */
 422 #define CACHE_NEW_CC_VP                  (1<<BRW_CC_VP)
 423 #define CACHE_NEW_CC_UNIT                (1<<BRW_CC_UNIT)
 424 #define CACHE_NEW_WM_PROG                (1<<BRW_WM_PROG)
 425 #define CACHE_NEW_SAMPLER_DEFAULT_COLOR  (1<<BRW_SAMPLER_DEFAULT_COLOR)
 426 #define CACHE_NEW_SAMPLER                (1<<BRW_SAMPLER)
 427 #define CACHE_NEW_WM_UNIT                (1<<BRW_WM_UNIT)
 428 #define CACHE_NEW_SF_PROG                (1<<BRW_SF_PROG)
 429 #define CACHE_NEW_SF_VP                  (1<<BRW_SF_VP)
 430 #define CACHE_NEW_SF_UNIT                (1<<BRW_SF_UNIT)
 431 #define CACHE_NEW_VS_UNIT                (1<<BRW_VS_UNIT)
 432 #define CACHE_NEW_VS_PROG                (1<<BRW_VS_PROG)
 433 #define CACHE_NEW_GS_UNIT                (1<<BRW_GS_UNIT)
 434 #define CACHE_NEW_GS_PROG                (1<<BRW_GS_PROG)
 435 #define CACHE_NEW_CLIP_VP                (1<<BRW_CLIP_VP)
 436 #define CACHE_NEW_CLIP_UNIT              (1<<BRW_CLIP_UNIT)
 437 #define CACHE_NEW_CLIP_PROG              (1<<BRW_CLIP_PROG)
 438 #define CACHE_NEW_SURFACE                (1<<BRW_SS_SURFACE)
 439 #define CACHE_NEW_SURF_BIND              (1<<BRW_SS_SURF_BIND)
 440
 441 struct brw_cached_batch_item {
 442    struct header *header;
 443    GLuint sz;
 444    struct brw_cached_batch_item *next;
 445 };
 446
 447
 448
 449 /* Protect against a future where VERT_ATTRIB_MAX > 32.  Wouldn't life
 450  * be easier if C allowed arrays of packed elements?
 451  */
 452 #define VS_INPUT_BITMASK_DWORDS  ((PIPE_MAX_SHADER_INPUTS+31)/32)
 453
 454
 455
 456
 457 struct brw_vertex_info {
 458    GLuint sizes[VS_INPUT_BITMASK_DWORDS * 2]; /* sizes:2[VERT_ATTRIB_MAX] */
 459 };
 460
 461
 462 struct brw_query_object {
 463    /** Doubly linked list of active query objects in the context. */
 464    struct brw_query_object *prev, *next;
 465
 466    /** Last query BO associated with this query. */
 467    struct brw_winsys_buffer *bo;
 468    /** First index in bo with query data for this object. */
 469    int first_index;
 470    /** Last index in bo with query data for this object. */
 471    int last_index;
 472
 473    /* Total count of pixels from previous BOs */
 474    uint64_t result;
 475 };
 476
 477
 478 /**
 479  * brw_context is derived from pipe_context
 480  */
 481 struct brw_context
 482 {
 483    struct pipe_context base;
 484    struct brw_chipset chipset;
 485
 486    struct brw_screen *brw_screen;
 487    struct brw_winsys_screen *sws;
 488
 489    struct brw_batchbuffer *batch;
 490
 491    GLuint primitive;
 492    GLuint reduced_primitive;
 493
 494    /* Active state from the state tracker:
 495     */
 496    struct {
 497       struct brw_vertex_shader *vertex_shader;
 498       struct brw_fragment_shader *fragment_shader;
 499       const struct brw_blend_state *blend;
 500       const struct brw_rasterizer_state *rast;
 501       const struct brw_depth_stencil_state *zstencil;
 502
 503       const struct brw_sampler *sampler[PIPE_MAX_SAMPLERS];
 504       const struct pipe_vertex_element vertex_element[PIPE_MAX_ATTRIBS];
 505       unsigned num_vertex_elements;
 506       unsigned num_samplers;
 507
 508       struct brw_texture *texture[PIPE_MAX_SAMPLERS];
 509       struct pipe_vertex_buffer vertex_buffer[PIPE_MAX_ATTRIBS];
 510       unsigned num_textures;
 511       unsigned num_vertex_buffers;
 512
 513       struct pipe_scissor_state scissor;
 514       struct pipe_framebuffer_state fb;
 515       struct pipe_viewport_state vp;
 516       struct pipe_clip_state ucp;
 517       struct pipe_buffer *vertex_constants;
 518       struct pipe_buffer *fragment_constants;
 519
 520       struct pipe_viewport_state viewport;
 521       struct brw_blend_constant_color bcc;
 522       struct brw_polygon_stipple bps;
 523
 524
 525
 526       /**
 527        * Index buffer for this draw_prims call.
 528        *
 529        * Updates are signaled by PIPE_NEW_INDEX_BUFFER.
 530        */
 531       struct pipe_buffer *index_buffer;
 532       unsigned index_size;
 533
 534       /* Updates are signalled by PIPE_NEW_INDEX_RANGE:
 535        */
 536       unsigned min_index;
 537       unsigned max_index;
 538
 539    } curr;
 540
 541    struct {
 542       struct brw_state_flags dirty;
 543
 544       /**
 545        * List of buffers accumulated in brw_validate_state to receive
 546        * dri_bo_check_aperture treatment before exec, so we can know if we
 547        * should flush the batch and try again before emitting primitives.
 548        *
 549        * This can be a fixed number as we only have a limited number of
 550        * objects referenced from the batchbuffer in a primitive emit,
 551        * consisting of the vertex buffers, pipelined state pointers,
 552        * the CURBE, the depth buffer, and a query BO.
 553        */
 554       struct brw_winsys_buffer *validated_bos[PIPE_MAX_SHADER_INPUTS + 16];
 555       int validated_bo_count;
 556    } state;
 557
 558    struct brw_cache cache;  /** non-surface items */
 559    struct brw_cache surface_cache;  /* surface items */
 560    struct brw_cached_batch_item *cached_batch_items;
 561
 562    struct {
 563       struct u_upload_mgr *upload_vertex;
 564       struct u_upload_mgr *upload_index;
 565
 566       /* Information on uploaded vertex buffers:
 567        */
 568       struct {
 569          unsigned stride;       /* in bytes between successive vertices */
 570          unsigned offset;       /* in bytes, of first vertex in bo */
 571          unsigned vertex_count; /* count of valid vertices which may be accessed */
 572          struct brw_winsys_buffer *bo;
 573       } vb[PIPE_MAX_ATTRIBS];
 574
 575       struct {
 576          int dummy;
 577       } ve[PIPE_MAX_ATTRIBS];
 578
 579       unsigned nr_vb;           /* currently the same as curr.num_vertex_buffers */
 580       unsigned nr_ve;           /* currently the same as curr.num_vertex_elements */
 581    } vb;
 582
 583    struct {
 584       /* Updates to these fields are signaled by BRW_NEW_INDEX_BUFFER. */
 585       struct brw_winsys_buffer *bo;
 586       unsigned int offset;
 587       unsigned int size;
 588       /* Offset to index buffer index to use in CMD_3D_PRIM so that we can
 589        * avoid re-uploading the IB packet over and over if we're actually
 590        * referencing the same index buffer.
 591        */
 592       unsigned int start_vertex_offset;
 593    } ib;
 594
 595
 596    /* BRW_NEW_URB_ALLOCATIONS:
 597     */
 598    struct {
 599       GLuint vsize;             /* vertex size plus header in urb registers */
 600       GLuint csize;             /* constant buffer size in urb registers */
 601       GLuint sfsize;            /* setup data size in urb registers */
 602
 603       GLboolean constrained;
 604
 605       GLuint nr_vs_entries;
 606       GLuint nr_gs_entries;
 607       GLuint nr_clip_entries;
 608       GLuint nr_sf_entries;
 609       GLuint nr_cs_entries;
 610
 611       GLuint vs_start;
 612       GLuint gs_start;
 613       GLuint clip_start;
 614       GLuint sf_start;
 615       GLuint cs_start;
 616    } urb;
 617
 618
 619    /* BRW_NEW_CURBE_OFFSETS:
 620     */
 621    struct {
 622       GLuint wm_start;  /**< pos of first wm const in CURBE buffer */
 623       GLuint wm_size;   /**< number of float[4] consts, multiple of 16 */
 624       GLuint clip_start;
 625       GLuint clip_size;
 626       GLuint vs_start;
 627       GLuint vs_size;
 628       GLuint total_size;
 629
 630       struct brw_winsys_buffer *curbe_bo;
 631       /** Offset within curbe_bo of space for current curbe entry */
 632       GLuint curbe_offset;
 633       /** Offset within curbe_bo of space for next curbe entry */
 634       GLuint curbe_next_offset;
 635
 636       GLfloat *last_buf;
 637       GLuint last_bufsz;
 638       /**
 639        *  Whether we should create a new bo instead of reusing the old one
 640        * (if we just dispatch the batch pointing at the old one.
 641        */
 642       GLboolean need_new_bo;
 643    } curbe;
 644
 645    struct {
 646       struct brw_vs_prog_data *prog_data;
 647
 648       struct brw_winsys_buffer *prog_bo;
 649       struct brw_winsys_buffer *state_bo;
 650
 651       /** Binding table of pointers to surf_bo entries */
 652       struct brw_winsys_buffer *bind_bo;
 653       struct brw_winsys_buffer *surf_bo[BRW_VS_MAX_SURF];
 654       GLuint nr_surfaces;
 655    } vs;
 656
 657    struct {
 658       struct brw_gs_prog_data *prog_data;
 659
 660       GLboolean prog_active;
 661       struct brw_winsys_buffer *prog_bo;
 662       struct brw_winsys_buffer *state_bo;
 663    } gs;
 664
 665    struct {
 666       struct brw_clip_prog_data *prog_data;
 667
 668       struct brw_winsys_buffer *prog_bo;
 669       struct brw_winsys_buffer *state_bo;
 670       struct brw_winsys_buffer *vp_bo;
 671    } clip;
 672
 673
 674    struct {
 675       struct brw_sf_prog_data *prog_data;
 676
 677       struct brw_winsys_buffer *prog_bo;
 678       struct brw_winsys_buffer *state_bo;
 679       struct brw_winsys_buffer *vp_bo;
 680    } sf;
 681
 682    struct {
 683       struct brw_wm_prog_data *prog_data;
 684       struct brw_wm_compile *compile_data;
 685
 686       /** Input sizes, calculated from active vertex program.
 687        * One bit per fragment program input attribute.
 688        */
 689       //GLbitfield input_size_masks[4];
 690
 691       /** Array of surface default colors (texture border color) */
 692       struct brw_winsys_buffer *sdc_bo[BRW_MAX_TEX_UNIT];
 693
 694       GLuint render_surf;
 695       GLuint nr_surfaces;
 696
 697       GLuint max_threads;
 698       struct brw_winsys_buffer *scratch_bo;
 699
 700       GLuint sampler_count;
 701       struct brw_winsys_buffer *sampler_bo;
 702
 703       /** Binding table of pointers to surf_bo entries */
 704       struct brw_winsys_buffer *bind_bo;
 705       struct brw_winsys_buffer *surf_bo[PIPE_MAX_COLOR_BUFS];
 706
 707       struct brw_winsys_buffer *prog_bo;
 708       struct brw_winsys_buffer *state_bo;
 709    } wm;
 710
 711
 712    struct {
 713       struct brw_winsys_buffer *prog_bo;
 714       struct brw_winsys_buffer *state_bo;
 715       struct brw_winsys_buffer *vp_bo;
 716    } cc;
 717
 718    struct {
 719       struct brw_query_object active_head;
 720       struct brw_winsys_buffer *bo;
 721       int index;
 722       GLboolean active;
 723       int stats_wm;
 724    } query;
 725
 726    struct {
 727       unsigned always_emit_state:1;
 728       unsigned always_flush_batch:1;
 729       unsigned force_swtnl:1;
 730       unsigned no_swtnl:1;
 731    } flags;
 732
 733    /* Used to give every program string a unique id
 734     */
 735    GLuint program_id;
 736 };
 737
 738
 739
 740 /*======================================================================
 741  * brw_queryobj.c
 742  */
 743 void brw_init_query(struct brw_context *brw);
 744 void brw_prepare_query_begin(struct brw_context *brw);
 745 void brw_emit_query_begin(struct brw_context *brw);
 746 void brw_emit_query_end(struct brw_context *brw);
 747
 748 /*======================================================================
 749  * brw_state_dump.c
 750  */
 751 void brw_debug_batch(struct brw_context *intel);
 752
 753
 754 /*======================================================================
 755  * brw_pipe_*.c
 756  */
 757 void brw_pipe_blend_init( struct brw_context *brw );
 758 void brw_pipe_depth_stencil_init( struct brw_context *brw );
 759 void brw_pipe_framebuffer_init( struct brw_context *brw );
 760 void brw_pipe_flush_init( struct brw_context *brw );
 761 void brw_pipe_misc_init( struct brw_context *brw );
 762 void brw_pipe_query_init( struct brw_context *brw );
 763 void brw_pipe_rast_init( struct brw_context *brw );
 764 void brw_pipe_sampler_init( struct brw_context *brw );
 765 void brw_pipe_shader_init( struct brw_context *brw );
 766 void brw_pipe_vertex_init( struct brw_context *brw );
 767
 768 void brw_pipe_blend_cleanup( struct brw_context *brw );
 769 void brw_pipe_depth_stencil_cleanup( struct brw_context *brw );
 770 void brw_pipe_framebuffer_cleanup( struct brw_context *brw );
 771 void brw_pipe_flush_cleanup( struct brw_context *brw );
 772 void brw_pipe_misc_cleanup( struct brw_context *brw );
 773 void brw_pipe_query_cleanup( struct brw_context *brw );
 774 void brw_pipe_rast_cleanup( struct brw_context *brw );
 775 void brw_pipe_sampler_cleanup( struct brw_context *brw );
 776 void brw_pipe_shader_cleanup( struct brw_context *brw );
 777 void brw_pipe_vertex_cleanup( struct brw_context *brw );
 778
 779
 780 /* brw_urb.c
 781  */
 782 int brw_upload_urb_fence(struct brw_context *brw);
 783
 784 /* brw_curbe.c
 785  */
 786 int brw_upload_cs_urb_state(struct brw_context *brw);
 787
 788 /* brw_disasm.c */
 789 int brw_disasm (FILE *file, struct brw_instruction *inst);
 790
 791 /*======================================================================
 792  * Inline conversion functions.  These are better-typed than the
 793  * macros used previously:
 794  */
 795 static INLINE struct brw_context *
 796 brw_context( struct pipe_context *ctx )
 797 {
 798    return (struct brw_context *)ctx;
 799 }
 800
 801
 802 #define BRW_IS_965(brw)    ((brw)->chipset.is_965)
 803 #define BRW_IS_IGDNG(brw)  ((brw)->chipset.is_igdng)
 804 #define BRW_IS_G4X(brw)    ((brw)->chipset.is_g4x)
 805
 806
 807 #endif
 808