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 descisions 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    //struct pipe_depth_stencil_alpha_state templ; /* for draw module */
 127
 128    /* Precalculated hardware state:
 129     */
 130    struct brw_cc0 cc0;
 131    struct brw_cc1 cc1;
 132    struct brw_cc2 cc2;
 133    struct brw_cc3 cc3;
 134    struct brw_cc7 cc7;
 135
 136    unsigned iz_lookup;
 137 };
 138
 139
 140 struct brw_blend_state {
 141    //struct pipe_depth_stencil_alpha_state templ; /* for draw module */
 142
 143    /* Precalculated hardware state:
 144     */
 145    struct brw_cc2 cc2;
 146    struct brw_cc3 cc3;
 147    struct brw_cc5 cc5;
 148    struct brw_cc6 cc6;
 149 };
 150
 151
 152 struct brw_rasterizer_state;
 153
 154
 155 struct brw_vertex_shader {
 156    const struct tgsi_token *tokens;
 157    struct tgsi_shader_info info;
 158
 159    unsigned id;
 160    struct brw_winsys_buffer *const_buffer;    /** Program constant buffer/surface */
 161    GLboolean use_const_buffer;
 162 };
 163
 164
 165 struct brw_fragment_shader {
 166    const struct tgsi_token *tokens;
 167    struct tgsi_shader_info info;
 168
 169    unsigned iz_lookup;
 170
 171    boolean  uses_depth:1;
 172    boolean  has_flow_control:1;
 173
 174    unsigned id;
 175    struct brw_winsys_buffer *const_buffer;    /** Program constant buffer/surface */
 176    GLboolean use_const_buffer;
 177 };
 178
 179
 180 struct brw_sampler {
 181    struct pipe_sampler_state templ;
 182    struct brw_ss0 ss0;
 183    struct brw_ss1 ss1;
 184    struct brw_ss3 ss3;
 185 };
 186
 187
 188
 189 #define PIPE_NEW_DEPTH_STENCIL_ALPHA    0x1
 190 #define PIPE_NEW_RAST                   0x2
 191 #define PIPE_NEW_BLEND                  0x4
 192 #define PIPE_NEW_VIEWPORT               0x8
 193 #define PIPE_NEW_SAMPLERS               0x10
 194 #define PIPE_NEW_VERTEX_BUFFER          0x20
 195 #define PIPE_NEW_VERTEX_ELEMENT         0x40
 196 #define PIPE_NEW_FRAGMENT_SHADER        0x80
 197 #define PIPE_NEW_VERTEX_SHADER          0x100
 198 #define PIPE_NEW_FRAGMENT_CONSTANTS     0x200
 199 #define PIPE_NEW_VERTEX_CONSTANTS       0x400
 200 #define PIPE_NEW_CLIP                   0x800
 201 #define PIPE_NEW_INDEX_BUFFER           0x1000
 202 #define PIPE_NEW_INDEX_RANGE            0x2000
 203 #define PIPE_NEW_BLEND_COLOR            0x4000
 204 #define PIPE_NEW_POLYGON_STIPPLE        0x8000
 205 #define PIPE_NEW_FRAMEBUFFER_DIMENSIONS 0x10000
 206 #define PIPE_NEW_DEPTH_BUFFER           0x20000
 207 #define PIPE_NEW_COLOR_BUFFERS          0x40000
 208 #define PIPE_NEW_QUERY                  0x80000
 209 #define PIPE_NEW_SCISSOR                0x100000
 210 #define PIPE_NEW_BOUND_TEXTURES         0x200000
 211
 212
 213
 214 #define BRW_NEW_URB_FENCE               0x1
 215 #define BRW_NEW_FRAGMENT_PROGRAM        0x2
 216 #define BRW_NEW_VERTEX_PROGRAM          0x4
 217 #define BRW_NEW_INPUT_DIMENSIONS        0x8
 218 #define BRW_NEW_CURBE_OFFSETS           0x10
 219 #define BRW_NEW_REDUCED_PRIMITIVE       0x20
 220 #define BRW_NEW_PRIMITIVE               0x40
 221 #define BRW_NEW_CONTEXT                 0x80
 222 #define BRW_NEW_WM_INPUT_DIMENSIONS     0x100
 223 #define BRW_NEW_PSP                     0x800
 224 #define BRW_NEW_WM_SURFACES             0x1000
 225 #define BRW_NEW_xxx                     0x2000 /* was FENCE */
 226 #define BRW_NEW_INDICES                 0x4000
 227 #define BRW_NEW_VERTICES                0x8000
 228 /**
 229  * Used for any batch entry with a relocated pointer that will be used
 230  * by any 3D rendering.  Need to re-emit these fresh in each
 231  * batchbuffer as the referenced buffers may be relocated in the
 232  * meantime.
 233  */
 234 #define BRW_NEW_BATCH                   0x10000
 235 #define BRW_NEW_NR_WM_SURFACES          0x40000
 236 #define BRW_NEW_NR_VS_SURFACES          0x80000
 237 #define BRW_NEW_INDEX_BUFFER            0x100000
 238
 239 struct brw_state_flags {
 240    /** State update flags signalled by mesa internals */
 241    GLuint mesa;
 242    /**
 243     * State update flags signalled as the result of brw_tracked_state updates
 244     */
 245    GLuint brw;
 246    /** State update flags signalled by brw_state_cache.c searches */
 247    GLuint cache;
 248 };
 249
 250
 251
 252 /* Data about a particular attempt to compile a program.  Note that
 253  * there can be many of these, each in a different GL state
 254  * corresponding to a different brw_wm_prog_key struct, with different
 255  * compiled programs:
 256  */
 257 struct brw_wm_prog_data {
 258    GLuint curb_read_length;
 259    GLuint urb_read_length;
 260
 261    GLuint first_curbe_grf;
 262    GLuint total_grf;
 263    GLuint total_scratch;
 264
 265    GLuint nr_params;       /**< number of float params/constants */
 266    GLboolean error;
 267
 268    /* Pointer to tracked values (only valid once
 269     * _mesa_load_state_parameters has been called at runtime).
 270     */
 271    const GLfloat *param[BRW_MAX_CURBE];
 272 };
 273
 274 struct brw_sf_prog_data {
 275    GLuint urb_read_length;
 276    GLuint total_grf;
 277
 278    /* Each vertex may have upto 12 attributes, 4 components each,
 279     * except WPOS which requires only 2.  (11*4 + 2) == 44 ==> 11
 280     * rows.
 281     *
 282     * Actually we use 4 for each, so call it 12 rows.
 283     */
 284    GLuint urb_entry_size;
 285 };
 286
 287
 288 struct brw_clip_prog_data;
 289
 290 struct brw_gs_prog_data {
 291    GLuint urb_read_length;
 292    GLuint total_grf;
 293 };
 294
 295 struct brw_vs_prog_data {
 296    GLuint curb_read_length;
 297    GLuint urb_read_length;
 298    GLuint total_grf;
 299
 300    GLuint nr_outputs;
 301    GLuint nr_inputs;
 302
 303    GLuint nr_params;       /**< number of TGSI_FILE_CONSTANT's */
 304
 305    GLboolean copy_edgeflag;
 306    GLboolean writes_psiz;
 307
 308    /* Used for calculating urb partitions:
 309     */
 310    GLuint urb_entry_size;
 311 };
 312
 313
 314 /* Size == 0 if output either not written, or always [0,0,0,1]
 315  */
 316 struct brw_vs_ouput_sizes {
 317    GLubyte output_size[PIPE_MAX_SHADER_OUTPUTS];
 318 };
 319
 320
 321 /** Number of texture sampler units */
 322 #define BRW_MAX_TEX_UNIT 16
 323
 324 /**
 325  * Size of our surface binding table for the WM.
 326  * This contains pointers to the drawing surfaces and current texture
 327  * objects and shader constant buffers (+2).
 328  */
 329 #define BRW_WM_MAX_SURF (PIPE_MAX_COLOR_BUFS + BRW_MAX_TEX_UNIT + 1)
 330
 331 /**
 332  * Helpers to convert drawing buffers, textures and constant buffers
 333  * to surface binding table indexes, for WM.
 334  */
 335 #define SURF_INDEX_DRAW(d)           (d)
 336 #define SURF_INDEX_FRAG_CONST_BUFFER (PIPE_MAX_COLOR_BUFS)
 337 #define SURF_INDEX_TEXTURE(t)        (PIPE_MAX_COLOR_BUFS + 1 + (t))
 338
 339 /**
 340  * Size of surface binding table for the VS.
 341  * Only one constant buffer for now.
 342  */
 343 #define BRW_VS_MAX_SURF 1
 344
 345 /**
 346  * Only a VS constant buffer
 347  */
 348 #define SURF_INDEX_VERT_CONST_BUFFER 0
 349
 350
 351 enum brw_cache_id {
 352    BRW_CC_VP,
 353    BRW_CC_UNIT,
 354    BRW_WM_PROG,
 355    BRW_SAMPLER_DEFAULT_COLOR,
 356    BRW_SAMPLER,
 357    BRW_WM_UNIT,
 358    BRW_SF_PROG,
 359    BRW_SF_VP,
 360    BRW_SF_UNIT,
 361    BRW_VS_UNIT,
 362    BRW_VS_PROG,
 363    BRW_GS_UNIT,
 364    BRW_GS_PROG,
 365    BRW_CLIP_VP,
 366    BRW_CLIP_UNIT,
 367    BRW_CLIP_PROG,
 368    BRW_SS_SURFACE,
 369    BRW_SS_SURF_BIND,
 370
 371    BRW_MAX_CACHE
 372 };
 373
 374 struct brw_cache_item {
 375    /**
 376     * Effectively part of the key, cache_id identifies what kind of state
 377     * buffer is involved, and also which brw->state.dirty.cache flag should
 378     * be set when this cache item is chosen.
 379     */
 380    enum brw_cache_id cache_id;
 381    /** 32-bit hash of the key data */
 382    GLuint hash;
 383    GLuint key_size;             /* for variable-sized keys */
 384    const void *key;
 385    struct brw_winsys_buffer **reloc_bufs;
 386    GLuint nr_reloc_bufs;
 387
 388    struct brw_winsys_buffer *bo;
 389    GLuint data_size;
 390
 391    struct brw_cache_item *next;
 392 };
 393
 394
 395
 396 struct brw_cache {
 397    struct brw_context *brw;
 398    struct brw_winsys_screen *sws;
 399
 400    struct brw_cache_item **items;
 401    GLuint size, n_items;
 402
 403    GLuint key_size[BRW_MAX_CACHE];              /* for fixed-size keys */
 404    GLuint aux_size[BRW_MAX_CACHE];
 405    char *name[BRW_MAX_CACHE];
 406
 407
 408    /* Record of the last BOs chosen for each cache_id.  Used to set
 409     * brw->state.dirty.cache when a new cache item is chosen.
 410     */
 411    struct brw_winsys_buffer *last_bo[BRW_MAX_CACHE];
 412 };
 413
 414
 415 struct brw_tracked_state {
 416    struct brw_state_flags dirty;
 417    int (*prepare)( struct brw_context *brw );
 418    int (*emit)( struct brw_context *brw );
 419 };
 420
 421 /* Flags for brw->state.cache.
 422  */
 423 #define CACHE_NEW_CC_VP                  (1<<BRW_CC_VP)
 424 #define CACHE_NEW_CC_UNIT                (1<<BRW_CC_UNIT)
 425 #define CACHE_NEW_WM_PROG                (1<<BRW_WM_PROG)
 426 #define CACHE_NEW_SAMPLER_DEFAULT_COLOR  (1<<BRW_SAMPLER_DEFAULT_COLOR)
 427 #define CACHE_NEW_SAMPLER                (1<<BRW_SAMPLER)
 428 #define CACHE_NEW_WM_UNIT                (1<<BRW_WM_UNIT)
 429 #define CACHE_NEW_SF_PROG                (1<<BRW_SF_PROG)
 430 #define CACHE_NEW_SF_VP                  (1<<BRW_SF_VP)
 431 #define CACHE_NEW_SF_UNIT                (1<<BRW_SF_UNIT)
 432 #define CACHE_NEW_VS_UNIT                (1<<BRW_VS_UNIT)
 433 #define CACHE_NEW_VS_PROG                (1<<BRW_VS_PROG)
 434 #define CACHE_NEW_GS_UNIT                (1<<BRW_GS_UNIT)
 435 #define CACHE_NEW_GS_PROG                (1<<BRW_GS_PROG)
 436 #define CACHE_NEW_CLIP_VP                (1<<BRW_CLIP_VP)
 437 #define CACHE_NEW_CLIP_UNIT              (1<<BRW_CLIP_UNIT)
 438 #define CACHE_NEW_CLIP_PROG              (1<<BRW_CLIP_PROG)
 439 #define CACHE_NEW_SURFACE                (1<<BRW_SS_SURFACE)
 440 #define CACHE_NEW_SURF_BIND              (1<<BRW_SS_SURF_BIND)
 441
 442 struct brw_cached_batch_item {
 443    struct header *header;
 444    GLuint sz;
 445    struct brw_cached_batch_item *next;
 446 };
 447
 448
 449
 450 /* Protect against a future where VERT_ATTRIB_MAX > 32.  Wouldn't life
 451  * be easier if C allowed arrays of packed elements?
 452  */
 453 #define VS_INPUT_BITMASK_DWORDS  ((PIPE_MAX_SHADER_INPUTS+31)/32)
 454
 455
 456
 457
 458 struct brw_vertex_info {
 459    GLuint sizes[VS_INPUT_BITMASK_DWORDS * 2]; /* sizes:2[VERT_ATTRIB_MAX] */
 460 };
 461
 462
 463 struct brw_query_object {
 464    /** Doubly linked list of active query objects in the context. */
 465    struct brw_query_object *prev, *next;
 466
 467    /** Last query BO associated with this query. */
 468    struct brw_winsys_buffer *bo;
 469    /** First index in bo with query data for this object. */
 470    int first_index;
 471    /** Last index in bo with query data for this object. */
 472    int last_index;
 473
 474    /* Total count of pixels from previous BOs */
 475    uint64_t result;
 476 };
 477
 478
 479 /**
 480  * brw_context is derived from pipe_context
 481  */
 482 struct brw_context
 483 {
 484    struct pipe_context base;
 485    struct brw_chipset chipset;
 486
 487    struct brw_screen *brw_screen;
 488    struct brw_winsys_screen *sws;
 489
 490    struct brw_batchbuffer *batch;
 491
 492    GLuint primitive;
 493    GLuint reduced_primitive;
 494
 495    /* Active state from the state tracker:
 496     */
 497    struct {
 498       struct brw_vertex_shader *vertex_shader;
 499       struct brw_fragment_shader *fragment_shader;
 500       const struct brw_blend_state *blend;
 501       const struct brw_rasterizer_state *rast;
 502       const struct brw_depth_stencil_state *zstencil;
 503
 504       const struct brw_texture *texture[PIPE_MAX_SAMPLERS];
 505       const struct brw_sampler *sampler[PIPE_MAX_SAMPLERS];
 506       unsigned num_textures;
 507       unsigned num_samplers;
 508
 509
 510       struct pipe_vertex_element vertex_element[PIPE_MAX_ATTRIBS];
 511       struct pipe_vertex_buffer vertex_buffer[PIPE_MAX_ATTRIBS];
 512       unsigned num_vertex_elements;
 513       unsigned num_vertex_buffers;
 514
 515       struct pipe_scissor_state scissor;
 516       struct pipe_framebuffer_state fb;
 517       struct pipe_viewport_state vp;
 518       struct pipe_clip_state ucp;
 519       struct pipe_buffer *vertex_constants;
 520       struct pipe_buffer *fragment_constants;
 521
 522       struct pipe_viewport_state viewport;
 523       struct brw_blend_constant_color bcc;
 524       struct brw_polygon_stipple bps;
 525
 526
 527
 528       /**
 529        * Index buffer for this draw_prims call.
 530        *
 531        * Updates are signaled by PIPE_NEW_INDEX_BUFFER.
 532        */
 533       struct pipe_buffer *index_buffer;
 534       unsigned index_size;
 535
 536       /* Updates are signalled by PIPE_NEW_INDEX_RANGE:
 537        */
 538       unsigned min_index;
 539       unsigned max_index;
 540
 541    } curr;
 542
 543    struct {
 544       struct brw_state_flags dirty;
 545
 546       /**
 547        * List of buffers accumulated in brw_validate_state to receive
 548        * dri_bo_check_aperture treatment before exec, so we can know if we
 549        * should flush the batch and try again before emitting primitives.
 550        *
 551        * This can be a fixed number as we only have a limited number of
 552        * objects referenced from the batchbuffer in a primitive emit,
 553        * consisting of the vertex buffers, pipelined state pointers,
 554        * the CURBE, the depth buffer, and a query BO.
 555        */
 556       struct brw_winsys_buffer *validated_bos[PIPE_MAX_SHADER_INPUTS + 16];
 557       int validated_bo_count;
 558    } state;
 559
 560    struct brw_cache cache;  /** non-surface items */
 561    struct brw_cache surface_cache;  /* surface items */
 562    struct brw_cached_batch_item *cached_batch_items;
 563
 564    struct {
 565       struct u_upload_mgr *upload_vertex;
 566       struct u_upload_mgr *upload_index;
 567
 568       /* Information on uploaded vertex buffers:
 569        */
 570       struct {
 571          unsigned stride;       /* in bytes between successive vertices */
 572          unsigned offset;       /* in bytes, of first vertex in bo */
 573          unsigned vertex_count; /* count of valid vertices which may be accessed */
 574          struct brw_winsys_buffer *bo;
 575       } vb[PIPE_MAX_ATTRIBS];
 576
 577       struct {
 578       } ve[PIPE_MAX_ATTRIBS];
 579
 580       unsigned nr_vb;           /* currently the same as curr.num_vertex_buffers */
 581       unsigned nr_ve;           /* currently the same as curr.num_vertex_elements */
 582    } vb;
 583
 584    struct {
 585       /* Updates to these fields are signaled by BRW_NEW_INDEX_BUFFER. */
 586       struct brw_winsys_buffer *bo;
 587       unsigned int offset;
 588       unsigned int size;
 589       /* Offset to index buffer index to use in CMD_3D_PRIM so that we can
 590        * avoid re-uploading the IB packet over and over if we're actually
 591        * referencing the same index buffer.
 592        */
 593       unsigned int start_vertex_offset;
 594    } ib;
 595
 596
 597    /* BRW_NEW_URB_ALLOCATIONS:
 598     */
 599    struct {
 600       GLuint vsize;             /* vertex size plus header in urb registers */
 601       GLuint csize;             /* constant buffer size in urb registers */
 602       GLuint sfsize;            /* setup data size in urb registers */
 603
 604       GLboolean constrained;
 605
 606       GLuint nr_vs_entries;
 607       GLuint nr_gs_entries;
 608       GLuint nr_clip_entries;
 609       GLuint nr_sf_entries;
 610       GLuint nr_cs_entries;
 611
 612       GLuint vs_start;
 613       GLuint gs_start;
 614       GLuint clip_start;
 615       GLuint sf_start;
 616       GLuint cs_start;
 617    } urb;
 618
 619
 620    /* BRW_NEW_CURBE_OFFSETS:
 621     */
 622    struct {
 623       GLuint wm_start;  /**< pos of first wm const in CURBE buffer */
 624       GLuint wm_size;   /**< number of float[4] consts, multiple of 16 */
 625       GLuint clip_start;
 626       GLuint clip_size;
 627       GLuint vs_start;
 628       GLuint vs_size;
 629       GLuint total_size;
 630
 631       struct brw_winsys_buffer *curbe_bo;
 632       /** Offset within curbe_bo of space for current curbe entry */
 633       GLuint curbe_offset;
 634       /** Offset within curbe_bo of space for next curbe entry */
 635       GLuint curbe_next_offset;
 636
 637       GLfloat *last_buf;
 638       GLuint last_bufsz;
 639       /**
 640        *  Whether we should create a new bo instead of reusing the old one
 641        * (if we just dispatch the batch pointing at the old one.
 642        */
 643       GLboolean need_new_bo;
 644    } curbe;
 645
 646    struct {
 647       struct brw_vs_prog_data *prog_data;
 648
 649       struct brw_winsys_buffer *prog_bo;
 650       struct brw_winsys_buffer *state_bo;
 651
 652       /** Binding table of pointers to surf_bo entries */
 653       struct brw_winsys_buffer *bind_bo;
 654       struct brw_winsys_buffer *surf_bo[BRW_VS_MAX_SURF];
 655       GLuint nr_surfaces;
 656    } vs;
 657
 658    struct {
 659       struct brw_gs_prog_data *prog_data;
 660
 661       GLboolean prog_active;
 662       struct brw_winsys_buffer *prog_bo;
 663       struct brw_winsys_buffer *state_bo;
 664    } gs;
 665
 666    struct {
 667       struct brw_clip_prog_data *prog_data;
 668
 669       struct brw_winsys_buffer *prog_bo;
 670       struct brw_winsys_buffer *state_bo;
 671       struct brw_winsys_buffer *vp_bo;
 672    } clip;
 673
 674
 675    struct {
 676       struct brw_sf_prog_data *prog_data;
 677
 678       struct brw_winsys_buffer *prog_bo;
 679       struct brw_winsys_buffer *state_bo;
 680       struct brw_winsys_buffer *vp_bo;
 681    } sf;
 682
 683    struct {
 684       struct brw_wm_prog_data *prog_data;
 685       struct brw_wm_compile *compile_data;
 686
 687       /** Input sizes, calculated from active vertex program.
 688        * One bit per fragment program input attribute.
 689        */
 690       //GLbitfield input_size_masks[4];
 691
 692       /** Array of surface default colors (texture border color) */
 693       struct brw_winsys_buffer *sdc_bo[BRW_MAX_TEX_UNIT];
 694
 695       GLuint render_surf;
 696       GLuint nr_surfaces;
 697
 698       GLuint max_threads;
 699       struct brw_winsys_buffer *scratch_bo;
 700
 701       GLuint sampler_count;
 702       struct brw_winsys_buffer *sampler_bo;
 703
 704       /** Binding table of pointers to surf_bo entries */
 705       struct brw_winsys_buffer *bind_bo;
 706       struct brw_winsys_buffer *surf_bo[PIPE_MAX_COLOR_BUFS];
 707
 708       struct brw_winsys_buffer *prog_bo;
 709       struct brw_winsys_buffer *state_bo;
 710    } wm;
 711
 712
 713    struct {
 714       struct brw_winsys_buffer *prog_bo;
 715       struct brw_winsys_buffer *state_bo;
 716       struct brw_winsys_buffer *vp_bo;
 717    } cc;
 718
 719    struct {
 720       struct brw_query_object active_head;
 721       struct brw_winsys_buffer *bo;
 722       int index;
 723       GLboolean active;
 724       int stats_wm;
 725    } query;
 726
 727    struct {
 728       unsigned always_emit_state:1;
 729       unsigned always_flush_batch:1;
 730       unsigned force_swtnl:1;
 731       unsigned no_swtnl:1;
 732    } flags;
 733
 734    /* Used to give every program string a unique id
 735     */
 736    GLuint program_id;
 737 };
 738
 739
 740
 741 /*======================================================================
 742  * brw_queryobj.c
 743  */
 744 void brw_init_query(struct brw_context *brw);
 745 void brw_prepare_query_begin(struct brw_context *brw);
 746 void brw_emit_query_begin(struct brw_context *brw);
 747 void brw_emit_query_end(struct brw_context *brw);
 748
 749 /*======================================================================
 750  * brw_state_dump.c
 751  */
 752 void brw_debug_batch(struct brw_context *intel);
 753
 754
 755 /*======================================================================
 756  * brw_pipe_*.c
 757  */
 758 void brw_pipe_blend_init( struct brw_context *brw );
 759 void brw_pipe_depth_stencil_init( struct brw_context *brw );
 760 void brw_pipe_framebuffer_init( struct brw_context *brw );
 761 void brw_pipe_flush_init( struct brw_context *brw );
 762 void brw_pipe_misc_init( struct brw_context *brw );
 763 void brw_pipe_query_init( struct brw_context *brw );
 764 void brw_pipe_rast_init( struct brw_context *brw );
 765 void brw_pipe_sampler_init( struct brw_context *brw );
 766 void brw_pipe_shader_init( struct brw_context *brw );
 767 void brw_pipe_vertex_init( struct brw_context *brw );
 768
 769 void brw_pipe_blend_cleanup( struct brw_context *brw );
 770 void brw_pipe_depth_stencil_cleanup( struct brw_context *brw );
 771 void brw_pipe_framebuffer_cleanup( struct brw_context *brw );
 772 void brw_pipe_flush_cleanup( struct brw_context *brw );
 773 void brw_pipe_misc_cleanup( struct brw_context *brw );
 774 void brw_pipe_query_cleanup( struct brw_context *brw );
 775 void brw_pipe_rast_cleanup( struct brw_context *brw );
 776 void brw_pipe_sampler_cleanup( struct brw_context *brw );
 777 void brw_pipe_shader_cleanup( struct brw_context *brw );
 778 void brw_pipe_vertex_cleanup( struct brw_context *brw );
 779
 780
 781 /* brw_urb.c
 782  */
 783 int brw_upload_urb_fence(struct brw_context *brw);
 784
 785 /* brw_curbe.c
 786  */
 787 int brw_upload_cs_urb_state(struct brw_context *brw);
 788
 789 /* brw_disasm.c */
 790 int brw_disasm (FILE *file, struct brw_instruction *inst);
 791
 792 /*======================================================================
 793  * Inline conversion functions.  These are better-typed than the
 794  * macros used previously:
 795  */
 796 static INLINE struct brw_context *
 797 brw_context( struct pipe_context *ctx )
 798 {
 799    return (struct brw_context *)ctx;
 800 }
 801
 802
 803 #define BRW_IS_965(brw)    ((brw)->chipset.is_965)
 804 #define BRW_IS_IGDNG(brw)  ((brw)->chipset.is_igdng)
 805 #define BRW_IS_G4X(brw)    ((brw)->chipset.is_g4x)
 806
 807
 808 #endif
 809