src/mesa/drivers/dri/i965/intel_context.c

   1 /**************************************************************************
   2  *
   3  * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
   4  * All Rights Reserved.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * 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, sub license, 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 portions
  16  * of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  19  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  20  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  21  * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
  22  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  23  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  24  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  *
  26  **************************************************************************/
  27
  28
  29 #include "glheader.h"
  30 #include "context.h"
  31 #include "matrix.h"
  32 #include "simple_list.h"
  33 #include "extensions.h"
  34 #include "framebuffer.h"
  35 #include "imports.h"
  36
  37 #include "swrast/swrast.h"
  38 #include "swrast_setup/swrast_setup.h"
  39 #include "tnl/tnl.h"
  40 #include "vbo/vbo.h"
  41
  42 #include "tnl/t_pipeline.h"
  43 #include "tnl/t_vertex.h"
  44
  45 #include "drivers/common/driverfuncs.h"
  46
  47 #include "intel_screen.h"
  48
  49 #include "i830_dri.h"
  50 #include "i830_common.h"
  51
  52 #include "intel_tex.h"
  53 #include "intel_span.h"
  54 #include "intel_ioctl.h"
  55 #include "intel_batchbuffer.h"
  56 #include "intel_blit.h"
  57 #include "intel_regions.h"
  58 #include "intel_buffer_objects.h"
  59
  60 #include "bufmgr.h"
  61
  62 #include "utils.h"
  63 #ifndef INTEL_DEBUG
  64 int INTEL_DEBUG = (0);
  65 #endif
  66
  67 #define need_GL_ARB_multisample
  68 #define need_GL_ARB_point_parameters
  69 #define need_GL_ARB_texture_compression
  70 #define need_GL_ARB_vertex_buffer_object
  71 #define need_GL_ARB_vertex_program
  72 #define need_GL_ARB_window_pos
  73 #define need_GL_EXT_blend_color
  74 #define need_GL_EXT_blend_equation_separate
  75 #define need_GL_EXT_blend_func_separate
  76 #define need_GL_EXT_blend_minmax
  77 #define need_GL_EXT_cull_vertex
  78 #define need_GL_EXT_fog_coord
  79 #define need_GL_EXT_multi_draw_arrays
  80 #define need_GL_EXT_secondary_color
  81 #include "extension_helper.h"
  82
  83 #ifndef VERBOSE
  84 int VERBOSE = 0;
  85 #endif
  86
  87 #if DEBUG_LOCKING
  88 char *prevLockFile;
  89 int prevLockLine;
  90 #endif
  91
  92 /***************************************
  93  * Mesa's Driver Functions
  94  ***************************************/
  95
  96 #define DRIVER_VERSION                     "4.1.3002"
  97
  98 static const GLubyte *intelGetString( GLcontext *ctx, GLenum name )
  99 {
 100    const char * chipset;
 101    static char buffer[128];
 102
 103    switch (name) {
 104    case GL_VENDOR:
 105       return (GLubyte *)"Tungsten Graphics, Inc";
 106       break;
 107
 108    case GL_RENDERER:
 109       switch (intel_context(ctx)->intelScreen->deviceID) {
 110       case PCI_CHIP_I965_Q:
 111          chipset = "Intel(R) 965Q"; break;
 112          break;
 113       case PCI_CHIP_I965_G:
 114       case PCI_CHIP_I965_G_1:
 115          chipset = "Intel(R) 965G"; break;
 116          break;
 117       case PCI_CHIP_I946_GZ:
 118          chipset = "Intel(R) 946GZ"; break;
 119          break;
 120       default:
 121          chipset = "Unknown Intel Chipset"; break;
 122       }
 123
 124       (void) driGetRendererString( buffer, chipset, DRIVER_VERSION, 0 );
 125       return (GLubyte *) buffer;
 126
 127    default:
 128       return NULL;
 129    }
 130 }
 131
 132
 133 /**
 134  * Extension strings exported by the intel driver.
 135  *
 136  * \note
 137  * It appears that ARB_texture_env_crossbar has "disappeared" compared to the
 138  * old i830-specific driver.
 139  */
 140 const struct dri_extension card_extensions[] =
 141 {
 142     { "GL_ARB_multisample",                GL_ARB_multisample_functions },
 143     { "GL_ARB_multitexture",               NULL },
 144     { "GL_ARB_point_parameters",           GL_ARB_point_parameters_functions },
 145     { "GL_ARB_texture_border_clamp",       NULL },
 146     { "GL_ARB_texture_compression",        GL_ARB_texture_compression_functions },
 147     { "GL_ARB_texture_cube_map",           NULL },
 148     { "GL_ARB_texture_env_add",            NULL },
 149     { "GL_ARB_texture_env_combine",        NULL },
 150     { "GL_ARB_texture_env_dot3",           NULL },
 151     { "GL_ARB_texture_mirrored_repeat",    NULL },
 152     { "GL_ARB_texture_non_power_of_two",   NULL },
 153     { "GL_ARB_texture_rectangle",          NULL },
 154     { "GL_NV_texture_rectangle",           NULL },
 155     { "GL_EXT_texture_rectangle",          NULL },
 156     { "GL_ARB_texture_rectangle",          NULL },
 157     { "GL_ARB_vertex_buffer_object",       GL_ARB_vertex_buffer_object_functions },
 158     { "GL_ARB_vertex_program",             GL_ARB_vertex_program_functions },
 159     { "GL_ARB_window_pos",                 GL_ARB_window_pos_functions },
 160     { "GL_EXT_blend_color",                GL_EXT_blend_color_functions },
 161     { "GL_EXT_blend_equation_separate",    GL_EXT_blend_equation_separate_functions },
 162     { "GL_EXT_blend_func_separate",        GL_EXT_blend_func_separate_functions },
 163     { "GL_EXT_blend_minmax",               GL_EXT_blend_minmax_functions },
 164     { "GL_EXT_blend_logic_op",             NULL },
 165     { "GL_EXT_blend_subtract",             NULL },
 166     { "GL_EXT_cull_vertex",                GL_EXT_cull_vertex_functions },
 167     { "GL_EXT_fog_coord",                  GL_EXT_fog_coord_functions },
 168     { "GL_EXT_multi_draw_arrays",          GL_EXT_multi_draw_arrays_functions },
 169     { "GL_EXT_secondary_color",            GL_EXT_secondary_color_functions },
 170     { "GL_EXT_stencil_wrap",               NULL },
 171     { "GL_EXT_texture_edge_clamp",         NULL },
 172     { "GL_EXT_texture_env_combine",        NULL },
 173     { "GL_EXT_texture_env_dot3",           NULL },
 174     { "GL_EXT_texture_filter_anisotropic", NULL },
 175     { "GL_EXT_texture_lod_bias",           NULL },
 176     { "GL_3DFX_texture_compression_FXT1",  NULL },
 177     { "GL_APPLE_client_storage",           NULL },
 178     { "GL_MESA_pack_invert",               NULL },
 179     { "GL_MESA_ycbcr_texture",             NULL },
 180     { "GL_NV_blend_square",                NULL },
 181     { "GL_SGIS_generate_mipmap",           NULL },
 182     { NULL,                                NULL }
 183 };
 184
 185
 186
 187 static const struct dri_debug_control debug_control[] =
 188 {
 189     { "fall",  DEBUG_FALLBACKS },
 190     { "tex",   DEBUG_TEXTURE },
 191     { "ioctl", DEBUG_IOCTL },
 192     { "prim",  DEBUG_PRIMS },
 193     { "vert",  DEBUG_VERTS },
 194     { "state", DEBUG_STATE },
 195     { "verb",  DEBUG_VERBOSE },
 196     { "dri",   DEBUG_DRI },
 197     { "dma",   DEBUG_DMA },
 198     { "san",   DEBUG_SANITY },
 199     { "sync",  DEBUG_SYNC },
 200     { "sleep", DEBUG_SLEEP },
 201     { "pix",   DEBUG_PIXEL },
 202     { "buf",   DEBUG_BUFMGR },
 203     { "stats", DEBUG_STATS },
 204     { "tile",  DEBUG_TILE },
 205     { "sing",  DEBUG_SINGLE_THREAD },
 206     { "thre",  DEBUG_SINGLE_THREAD },
 207     { "wm",    DEBUG_WM },
 208     { "vs",    DEBUG_VS },
 209     { NULL,    0 }
 210 };
 211
 212
 213 static void intelInvalidateState( GLcontext *ctx, GLuint new_state )
 214 {
 215    struct intel_context *intel = intel_context(ctx);
 216
 217    _swrast_InvalidateState( ctx, new_state );
 218    _swsetup_InvalidateState( ctx, new_state );
 219    _vbo_InvalidateState( ctx, new_state );
 220    _tnl_InvalidateState( ctx, new_state );
 221    _tnl_invalidate_vertex_state( ctx, new_state );
 222
 223    intel->NewGLState |= new_state;
 224
 225    if (intel->vtbl.invalidate_state)
 226       intel->vtbl.invalidate_state( intel, new_state );
 227 }
 228
 229
 230 void intelFlush( GLcontext *ctx )
 231 {
 232    struct intel_context *intel = intel_context( ctx );
 233
 234    bmLockAndFence(intel);
 235 }
 236
 237 void intelFinish( GLcontext *ctx )
 238 {
 239    struct intel_context *intel = intel_context( ctx );
 240
 241    bmFinishFence(intel, bmLockAndFence(intel));
 242 }
 243
 244
 245 void intelInitDriverFunctions( struct dd_function_table *functions )
 246 {
 247    _mesa_init_driver_functions( functions );
 248
 249    functions->Flush = intelFlush;
 250    functions->Finish = intelFinish;
 251    functions->GetString = intelGetString;
 252    functions->UpdateState = intelInvalidateState;
 253
 254    /* CopyPixels can be accelerated even with the current memory
 255     * manager:
 256     */
 257    if (!getenv("INTEL_NO_BLIT")) {
 258       functions->CopyPixels = intelCopyPixels;
 259       functions->Bitmap = intelBitmap;
 260    }
 261
 262    intelInitTextureFuncs( functions );
 263    intelInitStateFuncs( functions );
 264    intelInitBufferFuncs( functions );
 265 }
 266
 267
 268
 269 GLboolean intelInitContext( struct intel_context *intel,
 270                             const __GLcontextModes *mesaVis,
 271                             __DRIcontextPrivate *driContextPriv,
 272                             void *sharedContextPrivate,
 273                             struct dd_function_table *functions )
 274 {
 275    GLcontext *ctx = &intel->ctx;
 276    GLcontext *shareCtx = (GLcontext *) sharedContextPrivate;
 277    __DRIscreenPrivate *sPriv = driContextPriv->driScreenPriv;
 278    intelScreenPrivate *intelScreen = (intelScreenPrivate *)sPriv->private;
 279    volatile drmI830Sarea *saPriv = (volatile drmI830Sarea *)
 280       (((GLubyte *)sPriv->pSAREA)+intelScreen->sarea_priv_offset);
 281
 282    if (!_mesa_initialize_context(&intel->ctx,
 283                                  mesaVis, shareCtx,
 284                                  functions,
 285                                  (void*) intel)) {
 286       _mesa_printf("%s: failed to init mesa context\n", __FUNCTION__);
 287       return GL_FALSE;
 288    }
 289
 290    driContextPriv->driverPrivate = intel;
 291    intel->intelScreen = intelScreen;
 292    intel->driScreen = sPriv;
 293    intel->sarea = saPriv;
 294
 295
 296    ctx->Const.MaxTextureMaxAnisotropy = 2.0;
 297
 298    if (getenv("INTEL_STRICT_CONFORMANCE")) {
 299       intel->strict_conformance = 1;
 300    }
 301
 302    if (intel->strict_conformance) {
 303       ctx->Const.MinLineWidth = 1.0;
 304       ctx->Const.MinLineWidthAA = 1.0;
 305       ctx->Const.MaxLineWidth = 1.0;
 306       ctx->Const.MaxLineWidthAA = 1.0;
 307       ctx->Const.LineWidthGranularity = 1.0;
 308    }
 309    else {
 310       ctx->Const.MinLineWidth = 1.0;
 311       ctx->Const.MinLineWidthAA = 1.0;
 312       ctx->Const.MaxLineWidth = 5.0;
 313       ctx->Const.MaxLineWidthAA = 5.0;
 314       ctx->Const.LineWidthGranularity = 0.5;
 315    }
 316
 317    ctx->Const.MinPointSize = 1.0;
 318    ctx->Const.MinPointSizeAA = 1.0;
 319    ctx->Const.MaxPointSize = 255.0;
 320    ctx->Const.MaxPointSizeAA = 3.0;
 321    ctx->Const.PointSizeGranularity = 1.0;
 322
 323    /* Initialize the software rasterizer and helper modules. */
 324    _swrast_CreateContext( ctx );
 325    _vbo_CreateContext( ctx );
 326    _tnl_CreateContext( ctx );
 327    _swsetup_CreateContext( ctx );
 328
 329    TNL_CONTEXT(ctx)->Driver.RunPipeline = _tnl_run_pipeline;
 330
 331    /* Configure swrast to match hardware characteristics: */
 332    _swrast_allow_pixel_fog( ctx, GL_FALSE );
 333    _swrast_allow_vertex_fog( ctx, GL_TRUE );
 334
 335    /* Dri stuff */
 336    intel->hHWContext = driContextPriv->hHWContext;
 337    intel->driFd = sPriv->fd;
 338    intel->driHwLock = (drmLock *) &sPriv->pSAREA->lock;
 339
 340    intel->hw_stencil = mesaVis->stencilBits && mesaVis->depthBits == 24;
 341    intel->hw_stipple = 1;
 342
 343    switch(mesaVis->depthBits) {
 344    case 0:                      /* what to do in this case? */
 345    case 16:
 346       intel->depth_scale = 1.0/0xffff;
 347       intel->polygon_offset_scale = 1.0/0xffff;
 348       intel->depth_clear_mask = ~0;
 349       intel->ClearDepth = 0xffff;
 350       break;
 351    case 24:
 352       intel->depth_scale = 1.0/0xffffff;
 353       intel->polygon_offset_scale = 2.0/0xffffff; /* req'd to pass glean */
 354       intel->depth_clear_mask = 0x00ffffff;
 355       intel->stencil_clear_mask = 0xff000000;
 356       intel->ClearDepth = 0x00ffffff;
 357       break;
 358    default:
 359       assert(0);
 360       break;
 361    }
 362
 363    /* Initialize swrast, tnl driver tables: */
 364    intelInitSpanFuncs( ctx );
 365
 366    intel->no_hw = getenv("INTEL_NO_HW") != NULL;
 367
 368    if (!intel->intelScreen->irq_active) {
 369       _mesa_printf("IRQs not active.  Exiting\n");
 370       exit(1);
 371    }
 372
 373    driInitExtensions( ctx, card_extensions,
 374                       GL_TRUE );
 375
 376    INTEL_DEBUG  = driParseDebugString( getenv( "INTEL_DEBUG" ),
 377                                        debug_control );
 378
 379
 380    /* Buffer manager:
 381     */
 382    intel->bm = bm_fake_intel_Attach( intel );
 383
 384
 385    bmInitPool(intel,
 386               intel->intelScreen->tex.offset, /* low offset */
 387               intel->intelScreen->tex.map, /* low virtual */
 388               intel->intelScreen->tex.size,
 389               BM_MEM_AGP);
 390
 391    /* These are still static, but create regions for them.
 392     */
 393    intel->front_region =
 394       intel_region_create_static(intel,
 395                                  BM_MEM_AGP,
 396                                  intelScreen->front.offset,
 397                                  intelScreen->front.map,
 398                                  intelScreen->cpp,
 399                                  intelScreen->front.pitch / intelScreen->cpp,
 400                                  intelScreen->height,
 401                                  GL_FALSE);
 402
 403
 404    intel->back_region =
 405       intel_region_create_static(intel,
 406                                  BM_MEM_AGP,
 407                                  intelScreen->back.offset,
 408                                  intelScreen->back.map,
 409                                  intelScreen->cpp,
 410                                  intelScreen->back.pitch / intelScreen->cpp,
 411                                  intelScreen->height,
 412                                  (INTEL_DEBUG & DEBUG_TILE) ? 0 : 1);
 413
 414    /* Still assuming front.cpp == depth.cpp
 415     *
 416     * XXX: Setting tiling to false because Depth tiling only supports
 417     * YMAJOR but the blitter only supports XMAJOR tiling.  Have to
 418     * resolve later.
 419     */
 420    intel->depth_region =
 421       intel_region_create_static(intel,
 422                                  BM_MEM_AGP,
 423                                  intelScreen->depth.offset,
 424                                  intelScreen->depth.map,
 425                                  intelScreen->cpp,
 426                                  intelScreen->depth.pitch / intelScreen->cpp,
 427                                  intelScreen->height,
 428                                  (INTEL_DEBUG & DEBUG_TILE) ? 0 : 1);
 429
 430    intel_bufferobj_init( intel );
 431    intel->batch = intel_batchbuffer_alloc( intel );
 432
 433    if (intel->ctx.Mesa_DXTn) {
 434       _mesa_enable_extension( ctx, "GL_EXT_texture_compression_s3tc" );
 435       _mesa_enable_extension( ctx, "GL_S3_s3tc" );
 436    }
 437    else if (driQueryOptionb (&intelScreen->optionCache, "force_s3tc_enable")) {
 438       _mesa_enable_extension( ctx, "GL_EXT_texture_compression_s3tc" );
 439    }
 440
 441 /*    driInitTextureObjects( ctx, & intel->swapped, */
 442 /*                        DRI_TEXMGR_DO_TEXTURE_1D | */
 443 /*                        DRI_TEXMGR_DO_TEXTURE_2D |  */
 444 /*                        DRI_TEXMGR_DO_TEXTURE_RECT ); */
 445
 446
 447    if (getenv("INTEL_NO_RAST")) {
 448       fprintf(stderr, "disabling 3D rasterization\n");
 449       intel->no_rast = 1;
 450    }
 451
 452
 453    return GL_TRUE;
 454 }
 455
 456 void intelDestroyContext(__DRIcontextPrivate *driContextPriv)
 457 {
 458    struct intel_context *intel = (struct intel_context *) driContextPriv->driverPrivate;
 459
 460    assert(intel); /* should never be null */
 461    if (intel) {
 462       GLboolean   release_texture_heaps;
 463
 464
 465       intel->vtbl.destroy( intel );
 466
 467       release_texture_heaps = (intel->ctx.Shared->RefCount == 1);
 468       _swsetup_DestroyContext (&intel->ctx);
 469       _tnl_DestroyContext (&intel->ctx);
 470       _vbo_DestroyContext (&intel->ctx);
 471
 472       _swrast_DestroyContext (&intel->ctx);
 473       intel->Fallback = 0;      /* don't call _swrast_Flush later */
 474       intel_batchbuffer_free(intel->batch);
 475       intel->batch = NULL;
 476
 477
 478       if ( release_texture_heaps ) {
 479          /* This share group is about to go away, free our private
 480           * texture object data.
 481           */
 482
 483          /* XXX: destroy the shared bufmgr struct here?
 484           */
 485       }
 486
 487       /* Free the regions created to describe front/back/depth
 488        * buffers:
 489        */
 490 #if 0
 491       intel_region_release(intel, &intel->front_region);
 492       intel_region_release(intel, &intel->back_region);
 493       intel_region_release(intel, &intel->depth_region);
 494       intel_region_release(intel, &intel->draw_region);
 495 #endif
 496
 497       /* free the Mesa context */
 498       _mesa_destroy_context(&intel->ctx);
 499    }
 500
 501    driContextPriv->driverPrivate = NULL;
 502 }
 503
 504 GLboolean intelUnbindContext(__DRIcontextPrivate *driContextPriv)
 505 {
 506    return GL_TRUE;
 507 }
 508
 509 GLboolean intelMakeCurrent(__DRIcontextPrivate *driContextPriv,
 510                           __DRIdrawablePrivate *driDrawPriv,
 511                           __DRIdrawablePrivate *driReadPriv)
 512 {
 513
 514    if (driContextPriv) {
 515       struct intel_context *intel = (struct intel_context *) driContextPriv->driverPrivate;
 516
 517       if ( intel->driDrawable != driDrawPriv ) {
 518          /* Shouldn't the readbuffer be stored also? */
 519          intel->driDrawable = driDrawPriv;
 520          intelWindowMoved( intel );
 521       }
 522
 523       _mesa_make_current(&intel->ctx,
 524                          (GLframebuffer *) driDrawPriv->driverPrivate,
 525                          (GLframebuffer *) driReadPriv->driverPrivate);
 526
 527       intel->ctx.Driver.DrawBuffer( &intel->ctx, intel->ctx.Color.DrawBuffer[0] );
 528    } else {
 529       _mesa_make_current(NULL, NULL, NULL);
 530    }
 531
 532    return GL_TRUE;
 533 }
 534
 535
 536 static void intelContendedLock( struct intel_context *intel, GLuint flags )
 537 {
 538    __DRIdrawablePrivate *dPriv = intel->driDrawable;
 539    __DRIscreenPrivate *sPriv = intel->driScreen;
 540    volatile drmI830Sarea * sarea = intel->sarea;
 541    int me = intel->hHWContext;
 542    int my_bufmgr = bmCtxId(intel);
 543
 544    drmGetLock(intel->driFd, intel->hHWContext, flags);
 545
 546    /* If the window moved, may need to set a new cliprect now.
 547     *
 548     * NOTE: This releases and regains the hw lock, so all state
 549     * checking must be done *after* this call:
 550     */
 551    if (dPriv)
 552       DRI_VALIDATE_DRAWABLE_INFO(sPriv, dPriv);
 553
 554
 555    intel->locked = 1;
 556    intel->need_flush = 1;
 557
 558    /* Lost context?
 559     */
 560    if (sarea->ctxOwner != me) {
 561       DBG("Lost Context: sarea->ctxOwner %x me %x\n", sarea->ctxOwner, me);
 562       sarea->ctxOwner = me;
 563       intel->vtbl.lost_hardware( intel );
 564    }
 565
 566    /* As above, but don't evict the texture data on transitions
 567     * between contexts which all share a local buffer manager.
 568     */
 569    if (sarea->texAge != my_bufmgr) {
 570       DBG("Lost Textures: sarea->texAge %x my_bufmgr %x\n", sarea->ctxOwner, my_bufmgr);
 571       sarea->texAge = my_bufmgr;
 572       bm_fake_NotifyContendedLockTake( intel );
 573    }
 574
 575    /* Drawable changed?
 576     */
 577    if (dPriv && intel->lastStamp != dPriv->lastStamp) {
 578       intelWindowMoved( intel );
 579       intel->lastStamp = dPriv->lastStamp;
 580    }
 581 }
 582
 583 _glthread_DECLARE_STATIC_MUTEX(lockMutex);
 584
 585 /* Lock the hardware and validate our state.
 586  */
 587 void LOCK_HARDWARE( struct intel_context *intel )
 588 {
 589     char __ret=0;
 590
 591     _glthread_LOCK_MUTEX(lockMutex);
 592     assert(!intel->locked);
 593
 594
 595     DRM_CAS(intel->driHwLock, intel->hHWContext,
 596             (DRM_LOCK_HELD|intel->hHWContext), __ret);
 597     if (__ret)
 598         intelContendedLock( intel, 0 );
 599
 600    intel->locked = 1;
 601
 602    if (intel->aub_wrap) {
 603       bm_fake_NotifyContendedLockTake( intel );
 604       intel->vtbl.lost_hardware( intel );
 605       intel->vtbl.aub_wrap(intel);
 606       intel->aub_wrap = 0;
 607    }
 608
 609    if (bmError(intel)) {
 610       bmEvictAll(intel);
 611       intel->vtbl.lost_hardware( intel );
 612    }
 613
 614    /* Make sure nothing has been emitted prior to getting the lock:
 615     */
 616    assert(intel->batch->map == 0);
 617
 618    /* XXX: postpone, may not be needed:
 619     */
 620    if (!intel_batchbuffer_map(intel->batch)) {
 621       bmEvictAll(intel);
 622       intel->vtbl.lost_hardware( intel );
 623
 624       /* This could only fail if the batchbuffer was greater in size
 625        * than the available texture memory:
 626        */
 627       if (!intel_batchbuffer_map(intel->batch)) {
 628          _mesa_printf("double failure to map batchbuffer\n");
 629          assert(0);
 630       }
 631    }
 632 }
 633
 634
 635 /* Unlock the hardware using the global current context
 636  */
 637 void UNLOCK_HARDWARE( struct intel_context *intel )
 638 {
 639    /* Make sure everything has been released:
 640     */
 641    assert(intel->batch->ptr == intel->batch->map + intel->batch->offset);
 642
 643    intel_batchbuffer_unmap(intel->batch);
 644    intel->vtbl.note_unlock( intel );
 645    intel->locked = 0;
 646
 647
 648
 649    DRM_UNLOCK(intel->driFd, intel->driHwLock, intel->hHWContext);
 650    _glthread_UNLOCK_MUTEX(lockMutex);
 651 }
 652