src/mesa/drivers/dri/i915/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 "imports.h"
  35
  36 #include "swrast/swrast.h"
  37 #include "swrast_setup/swrast_setup.h"
  38 #include "tnl/tnl.h"
  39 #include "array_cache/acache.h"
  40
  41 #include "tnl/t_pipeline.h"
  42 #include "tnl/t_vertex.h"
  43
  44 #include "drivers/common/driverfuncs.h"
  45
  46 #include "intel_screen.h"
  47
  48 #include "i830_dri.h"
  49 #include "i830_common.h"
  50
  51 #include "intel_tex.h"
  52 #include "intel_span.h"
  53 #include "intel_tris.h"
  54 #include "intel_ioctl.h"
  55 #include "intel_batchbuffer.h"
  56
  57 #include "utils.h"
  58 #ifndef INTEL_DEBUG
  59 int INTEL_DEBUG = (0);
  60 #endif
  61
  62 #ifndef VERBOSE
  63 int VERBOSE = 0;
  64 #endif
  65
  66 #if DEBUG_LOCKING
  67 char *prevLockFile;
  68 int prevLockLine;
  69 #endif
  70
  71 /***************************************
  72  * Mesa's Driver Functions
  73  ***************************************/
  74
  75 #define DRIVER_DATE                     "20041007"
  76
  77 const GLubyte *intelGetString( GLcontext *ctx, GLenum name )
  78 {
  79    const char * chipset;
  80    static char buffer[128];
  81
  82    switch (name) {
  83    case GL_VENDOR:
  84       return (GLubyte *)"Tungsten Graphics, Inc";
  85       break;
  86
  87    case GL_RENDERER:
  88       switch (INTEL_CONTEXT(ctx)->intelScreen->deviceID) {
  89       case PCI_CHIP_845_G:
  90          chipset = "Intel(R) 845G"; break;
  91       case PCI_CHIP_I830_M:
  92          chipset = "Intel(R) 830M"; break;
  93       case PCI_CHIP_I855_GM:
  94          chipset = "Intel(R) 852GM/855GM"; break;
  95       case PCI_CHIP_I865_G:
  96          chipset = "Intel(R) 865G"; break;
  97       case PCI_CHIP_I915_G:
  98          chipset = "Intel(R) 915G"; break;
  99       default:
 100          chipset = "Unknown Intel Chipset"; break;
 101       }
 102
 103       (void) driGetRendererString( buffer, chipset, DRIVER_DATE, 0 );
 104       return (GLubyte *) buffer;
 105
 106    default:
 107       return NULL;
 108    }
 109 }
 110
 111 static void intelBufferSize(GLframebuffer *buffer,
 112                            GLuint *width, GLuint *height)
 113 {
 114    GET_CURRENT_CONTEXT(ctx);
 115    intelContextPtr intel = INTEL_CONTEXT(ctx);
 116    /* Need to lock to make sure the driDrawable is uptodate.  This
 117     * information is used to resize Mesa's software buffers, so it has
 118     * to be correct.
 119     */
 120    LOCK_HARDWARE(intel);
 121    *width = intel->driDrawable->w;
 122    *height = intel->driDrawable->h;
 123    UNLOCK_HARDWARE(intel);
 124 }
 125
 126
 127
 128 /**
 129  * Extension strings exported by the intel driver.
 130  *
 131  * \note
 132  * It appears that ARB_texture_env_crossbar and NV_blend_square have
 133  * "disappeared" compared to the old i830-specific driver.
 134  *
 135  * \note
 136  * See implementation of \c glGetString in each hw_context.c file:
 137  * This set of extensions is overridden and many are not actually
 138  * exported to the driver.  They are however enabled internally as
 139  * Mesa requires this when calculating things like GL version number.
 140  */
 141 static const char * const card_extensions[] =
 142 {
 143    "GL_ARB_multisample",
 144    "GL_ARB_multitexture",
 145    "GL_ARB_point_parameters",
 146    "GL_ARB_texture_border_clamp",
 147    "GL_ARB_texture_cube_map",
 148    "GL_ARB_texture_compression",
 149    "GL_ARB_texture_env_add",
 150    "GL_ARB_texture_env_combine",
 151    "GL_ARB_texture_env_dot3",
 152    "GL_ARB_texture_mirrored_repeat",
 153    "GL_ARB_texture_rectangle",
 154    "GL_ARB_vertex_buffer_object",
 155    "GL_ARB_vertex_program",
 156    "GL_ARB_window_pos",
 157
 158    "GL_EXT_abgr",
 159    "GL_EXT_bgra",
 160    "GL_EXT_blend_color",
 161    "GL_EXT_blend_equation_separate",
 162    "GL_EXT_blend_func_separate",
 163    "GL_EXT_blend_minmax",
 164    "GL_EXT_blend_subtract",
 165    "GL_EXT_fog_coord",
 166    "GL_EXT_multi_draw_arrays",
 167    "GL_EXT_secondary_color",
 168    "GL_EXT_stencil_wrap",
 169    "GL_EXT_texture_edge_clamp",
 170    "GL_EXT_texture_env_combine",
 171    "GL_EXT_texture_env_dot3",
 172    "GL_EXT_texture_filter_anisotropic",
 173    "GL_EXT_texture_lod_bias",
 174
 175    "GL_3DFX_texture_compression_FXT1",
 176    "GL_APPLE_client_storage",
 177    "GL_MESA_pack_invert",
 178    "GL_MESA_ycbcr_texture",
 179    "GL_NV_vertex_program",
 180    "GL_NV_vertex_program1_1",
 181    "GL_SGIS_generate_mipmap",
 182
 183    NULL
 184 };
 185
 186
 187 extern const struct tnl_pipeline_stage _intel_render_stage;
 188
 189 static const struct tnl_pipeline_stage *intel_pipeline[] = {
 190    &_tnl_vertex_transform_stage,
 191    &_tnl_normal_transform_stage,
 192    &_tnl_lighting_stage,
 193    &_tnl_fog_coordinate_stage,
 194    &_tnl_texgen_stage,
 195    &_tnl_texture_transform_stage,
 196    &_tnl_point_attenuation_stage,
 197    &_tnl_vertex_program_stage,
 198 #if 1
 199    &_intel_render_stage,     /* ADD: unclipped rastersetup-to-dma */
 200 #endif
 201    &_tnl_render_stage,
 202    0,
 203 };
 204
 205
 206 static const struct dri_debug_control debug_control[] =
 207 {
 208     { "fall",  DEBUG_FALLBACKS },
 209     { "tex",   DEBUG_TEXTURE },
 210     { "ioctl", DEBUG_IOCTL },
 211     { "prim",  DEBUG_PRIMS },
 212     { "vert",  DEBUG_VERTS },
 213     { "state", DEBUG_STATE },
 214     { "verb",  DEBUG_VERBOSE },
 215     { "dri",   DEBUG_DRI },
 216     { "dma",   DEBUG_DMA },
 217     { "san",   DEBUG_SANITY },
 218     { "sync",  DEBUG_SYNC },
 219     { "sleep", DEBUG_SLEEP },
 220     { "pix",   DEBUG_PIXEL },
 221     { NULL,    0 }
 222 };
 223
 224
 225 static void intelInvalidateState( GLcontext *ctx, GLuint new_state )
 226 {
 227    _swrast_InvalidateState( ctx, new_state );
 228    _swsetup_InvalidateState( ctx, new_state );
 229    _ac_InvalidateState( ctx, new_state );
 230    _tnl_InvalidateState( ctx, new_state );
 231    _tnl_invalidate_vertex_state( ctx, new_state );
 232    INTEL_CONTEXT(ctx)->NewGLState |= new_state;
 233 }
 234
 235
 236 void intelInitDriverFunctions( struct dd_function_table *functions )
 237 {
 238    _mesa_init_driver_functions( functions );
 239
 240    functions->Flush = intelFlush;
 241    functions->Clear = intelClear;
 242    functions->Finish = intelFinish;
 243    functions->GetBufferSize = intelBufferSize;
 244    functions->ResizeBuffers = _swrast_alloc_buffers;
 245    functions->GetString = intelGetString;
 246    functions->UpdateState = intelInvalidateState;
 247    functions->CopyColorTable = _swrast_CopyColorTable;
 248    functions->CopyColorSubTable = _swrast_CopyColorSubTable;
 249    functions->CopyConvolutionFilter1D = _swrast_CopyConvolutionFilter1D;
 250    functions->CopyConvolutionFilter2D = _swrast_CopyConvolutionFilter2D;
 251
 252    intelInitTextureFuncs( functions );
 253    intelInitPixelFuncs( functions );
 254    intelInitStateFuncs( functions );
 255 }
 256
 257
 258
 259 GLboolean intelInitContext( intelContextPtr intel,
 260                             const __GLcontextModes *mesaVis,
 261                             __DRIcontextPrivate *driContextPriv,
 262                             void *sharedContextPrivate,
 263                             struct dd_function_table *functions )
 264 {
 265    GLcontext *ctx = &intel->ctx;
 266    GLcontext *shareCtx = (GLcontext *) sharedContextPrivate;
 267    __DRIscreenPrivate *sPriv = driContextPriv->driScreenPriv;
 268    intelScreenPrivate *intelScreen = (intelScreenPrivate *)sPriv->private;
 269    drmI830Sarea *saPriv = (drmI830Sarea *)
 270       (((GLubyte *)sPriv->pSAREA)+intelScreen->sarea_priv_offset);
 271
 272    if (!_mesa_initialize_context(&intel->ctx,
 273                                  mesaVis, shareCtx,
 274                                  functions,
 275                                  (void*) intel))
 276       return GL_FALSE;
 277
 278    driContextPriv->driverPrivate = intel;
 279    intel->intelScreen = intelScreen;
 280    intel->driScreen = sPriv;
 281    intel->sarea = saPriv;
 282
 283
 284    (void) memset( intel->texture_heaps, 0, sizeof( intel->texture_heaps ) );
 285    make_empty_list( & intel->swapped );
 286
 287    ctx->Const.MaxTextureMaxAnisotropy = 2.0;
 288
 289    ctx->Const.MinLineWidth = 1.0;
 290    ctx->Const.MinLineWidthAA = 1.0;
 291    ctx->Const.MaxLineWidth = 3.0;
 292    ctx->Const.MaxLineWidthAA = 3.0;
 293    ctx->Const.LineWidthGranularity = 1.0;
 294
 295    ctx->Const.MinPointSize = 1.0;
 296    ctx->Const.MinPointSizeAA = 1.0;
 297    ctx->Const.MaxPointSize = 255.0;
 298    ctx->Const.MaxPointSizeAA = 3.0;
 299    ctx->Const.PointSizeGranularity = 1.0;
 300
 301    /* Initialize the software rasterizer and helper modules. */
 302    _swrast_CreateContext( ctx );
 303    _ac_CreateContext( ctx );
 304    _tnl_CreateContext( ctx );
 305    _swsetup_CreateContext( ctx );
 306
 307    /* Install the customized pipeline: */
 308    _tnl_destroy_pipeline( ctx );
 309    _tnl_install_pipeline( ctx, intel_pipeline );
 310
 311    /* Configure swrast to match hardware characteristics: */
 312    _swrast_allow_pixel_fog( ctx, GL_FALSE );
 313    _swrast_allow_vertex_fog( ctx, GL_TRUE );
 314
 315    /* Dri stuff */
 316    intel->hHWContext = driContextPriv->hHWContext;
 317    intel->driFd = sPriv->fd;
 318    intel->driHwLock = (drmLock *) &sPriv->pSAREA->lock;
 319
 320    intel->hw_stencil = mesaVis->stencilBits && mesaVis->depthBits == 24;
 321    intel->hw_stipple = 1;
 322
 323    switch(mesaVis->depthBits) {
 324    case 0:                      /* what to do in this case? */
 325    case 16:
 326       intel->depth_scale = 1.0/0xffff;
 327       intel->polygon_offset_scale = 1.0/0xffff;
 328       intel->depth_clear_mask = ~0;
 329       intel->ClearDepth = 0xffff;
 330       break;
 331    case 24:
 332       intel->depth_scale = 1.0/0xffffff;
 333       intel->polygon_offset_scale = 2.0/0xffffff; /* req'd to pass glean */
 334       intel->depth_clear_mask = 0x00ffffff;
 335       intel->stencil_clear_mask = 0xff000000;
 336       intel->ClearDepth = 0x00ffffff;
 337       break;
 338    default:
 339       assert(0);
 340       break;
 341    }
 342
 343    /* Initialize swrast, tnl driver tables: */
 344    intelInitSpanFuncs( ctx );
 345    intelInitTriFuncs( ctx );
 346
 347
 348    intel->RenderIndex = ~0;
 349
 350    intel->do_irqs = (intel->intelScreen->irq_active &&
 351                      !getenv("INTEL_NO_IRQS"));
 352
 353    _math_matrix_ctr (&intel->ViewportMatrix);
 354
 355    driInitExtensions( ctx, card_extensions, GL_TRUE );
 356
 357    if (intel->ctx.Mesa_DXTn) {
 358      _mesa_enable_extension( ctx, "GL_EXT_texture_compression_s3tc" );
 359      _mesa_enable_extension( ctx, "GL_S3_s3tc" );
 360    }
 361    else if (driQueryOptionb (&intelScreen->optionCache, "force_s3tc_enable")) {
 362      _mesa_enable_extension( ctx, "GL_EXT_texture_compression_s3tc" );
 363    }
 364
 365 /*    driInitTextureObjects( ctx, & intel->swapped, */
 366 /*                        DRI_TEXMGR_DO_TEXTURE_1D | */
 367 /*                        DRI_TEXMGR_DO_TEXTURE_2D |  */
 368 /*                        DRI_TEXMGR_DO_TEXTURE_RECT ); */
 369
 370
 371    intel->prim.flush = intelInitBatchBuffer;
 372    intel->prim.primitive = ~0;
 373
 374
 375 #if DO_DEBUG
 376    INTEL_DEBUG  = driParseDebugString( getenv( "INTEL_DEBUG" ),
 377                                        debug_control );
 378    INTEL_DEBUG |= driParseDebugString( getenv( "INTEL_DEBUG" ),
 379                                        debug_control );
 380 #endif
 381
 382 #ifndef VERBOSE
 383    if (getenv("INTEL_VERBOSE"))
 384       VERBOSE=1;
 385 #endif
 386
 387    if (getenv("INTEL_NO_RAST") ||
 388        getenv("INTEL_NO_RAST")) {
 389       fprintf(stderr, "disabling 3D rasterization\n");
 390       FALLBACK(intel, INTEL_FALLBACK_USER, 1);
 391    }
 392
 393    return GL_TRUE;
 394 }
 395
 396 void intelDestroyContext(__DRIcontextPrivate *driContextPriv)
 397 {
 398    intelContextPtr intel = (intelContextPtr) driContextPriv->driverPrivate;
 399
 400    assert(intel); /* should never be null */
 401    if (intel) {
 402       GLboolean   release_texture_heaps;
 403
 404
 405       intel->vtbl.destroy( intel );
 406
 407       release_texture_heaps = (intel->ctx.Shared->RefCount == 1);
 408       _swsetup_DestroyContext (&intel->ctx);
 409       _tnl_DestroyContext (&intel->ctx);
 410       _ac_DestroyContext (&intel->ctx);
 411
 412       _swrast_DestroyContext (&intel->ctx);
 413       intel->Fallback = 0;      /* don't call _swrast_Flush later */
 414
 415       intelDestroyBatchBuffer(&intel->ctx);
 416
 417
 418       if ( release_texture_heaps ) {
 419          /* This share group is about to go away, free our private
 420           * texture object data.
 421           */
 422          int i;
 423
 424          for ( i = 0 ; i < intel->nr_heaps ; i++ ) {
 425             driDestroyTextureHeap( intel->texture_heaps[ i ] );
 426             intel->texture_heaps[ i ] = NULL;
 427          }
 428
 429          assert( is_empty_list( & intel->swapped ) );
 430       }
 431
 432       /* free the Mesa context */
 433       _mesa_destroy_context(&intel->ctx);
 434    }
 435 }
 436
 437 void intelSetFrontClipRects( intelContextPtr intel )
 438 {
 439    __DRIdrawablePrivate *dPriv = intel->driDrawable;
 440
 441    if (!dPriv) return;
 442
 443    intel->numClipRects = dPriv->numClipRects;
 444    intel->pClipRects = dPriv->pClipRects;
 445    intel->drawX = dPriv->x;
 446    intel->drawY = dPriv->y;
 447 }
 448
 449
 450 void intelSetBackClipRects( intelContextPtr intel )
 451 {
 452    __DRIdrawablePrivate *dPriv = intel->driDrawable;
 453
 454    if (!dPriv) return;
 455
 456    if (intel->sarea->pf_enabled == 0 && dPriv->numBackClipRects == 0) {
 457       intel->numClipRects = dPriv->numClipRects;
 458       intel->pClipRects = dPriv->pClipRects;
 459       intel->drawX = dPriv->x;
 460       intel->drawY = dPriv->y;
 461    } else {
 462       intel->numClipRects = dPriv->numBackClipRects;
 463       intel->pClipRects = dPriv->pBackClipRects;
 464       intel->drawX = dPriv->backX;
 465       intel->drawY = dPriv->backY;
 466
 467       if (dPriv->numBackClipRects == 1 &&
 468           dPriv->x == dPriv->backX &&
 469           dPriv->y == dPriv->backY) {
 470
 471          /* Repeat the calculation of the back cliprect dimensions here
 472           * as early versions of dri.a in the Xserver are incorrect.  Try
 473           * very hard not to restrict future versions of dri.a which
 474           * might eg. allocate truly private back buffers.
 475           */
 476          int x1, y1;
 477          int x2, y2;
 478
 479          x1 = dPriv->x;
 480          y1 = dPriv->y;
 481          x2 = dPriv->x + dPriv->w;
 482          y2 = dPriv->y + dPriv->h;
 483
 484          if (x1 < 0) x1 = 0;
 485          if (y1 < 0) y1 = 0;
 486          if (x2 > intel->intelScreen->width) x2 = intel->intelScreen->width;
 487          if (y2 > intel->intelScreen->height) y2 = intel->intelScreen->height;
 488
 489          if (x1 == dPriv->pBackClipRects[0].x1 &&
 490              y1 == dPriv->pBackClipRects[0].y1) {
 491
 492             dPriv->pBackClipRects[0].x2 = x2;
 493             dPriv->pBackClipRects[0].y2 = y2;
 494          }
 495       }
 496    }
 497 }
 498
 499
 500 void intelWindowMoved( intelContextPtr intel )
 501 {
 502    switch (intel->ctx.Color._DrawDestMask[0]) {
 503    case DD_FRONT_LEFT_BIT:
 504       intelSetFrontClipRects( intel );
 505       break;
 506    case DD_BACK_LEFT_BIT:
 507       intelSetBackClipRects( intel );
 508       break;
 509    default:
 510       /* glDrawBuffer(GL_NONE or GL_FRONT_AND_BACK): software fallback */
 511       intelSetFrontClipRects( intel );
 512    }
 513 }
 514
 515 GLboolean intelUnbindContext(__DRIcontextPrivate *driContextPriv)
 516 {
 517    return GL_TRUE;
 518 }
 519
 520 GLboolean intelMakeCurrent(__DRIcontextPrivate *driContextPriv,
 521                           __DRIdrawablePrivate *driDrawPriv,
 522                           __DRIdrawablePrivate *driReadPriv)
 523 {
 524
 525    if (driContextPriv) {
 526       intelContextPtr intel = (intelContextPtr) driContextPriv->driverPrivate;
 527
 528       if ( intel->driDrawable != driDrawPriv ) {
 529          /* Shouldn't the readbuffer be stored also? */
 530          intel->driDrawable = driDrawPriv;
 531          intelWindowMoved( intel );
 532       }
 533
 534       _mesa_make_current2(&intel->ctx,
 535                           (GLframebuffer *) driDrawPriv->driverPrivate,
 536                           (GLframebuffer *) driReadPriv->driverPrivate);
 537
 538       if (!intel->ctx.Viewport.Width)
 539          _mesa_set_viewport(&intel->ctx, 0, 0, driDrawPriv->w, driDrawPriv->h);
 540    } else {
 541       _mesa_make_current(0,0);
 542    }
 543
 544    return GL_TRUE;
 545 }
 546
 547 void intelGetLock( intelContextPtr intel, GLuint flags )
 548 {
 549    __DRIdrawablePrivate *dPriv = intel->driDrawable;
 550    __DRIscreenPrivate *sPriv = intel->driScreen;
 551    drmI830Sarea * sarea = intel->sarea;
 552    int me = intel->hHWContext;
 553    unsigned   i;
 554
 555    drmGetLock(intel->driFd, intel->hHWContext, flags);
 556
 557    /* If the window moved, may need to set a new cliprect now.
 558     *
 559     * NOTE: This releases and regains the hw lock, so all state
 560     * checking must be done *after* this call:
 561     */
 562    if (dPriv)
 563       DRI_VALIDATE_DRAWABLE_INFO(sPriv, dPriv);
 564
 565    /* If we lost context, need to dump all registers to hardware.
 566     * Note that we don't care about 2d contexts, even if they perform
 567     * accelerated commands, so the DRI locking in the X server is even
 568     * more broken than usual.
 569     */
 570
 571    if (sarea->ctxOwner != me) {
 572       intel->perf_boxes |= I830_BOX_LOST_CONTEXT;
 573       sarea->ctxOwner = me;
 574    }
 575
 576    /* Shared texture managment - if another client has played with
 577     * texture space, figure out which if any of our textures have been
 578     * ejected, and update our global LRU.
 579     */
 580
 581    for ( i = 0 ; i < intel->nr_heaps ; i++ ) {
 582       DRI_AGE_TEXTURES( intel->texture_heaps[ i ] );
 583    }
 584
 585    if (dPriv && intel->lastStamp != dPriv->lastStamp) {
 586       intelWindowMoved( intel );
 587       intel->lastStamp = dPriv->lastStamp;
 588    }
 589 }
 590
 591 void intelSwapBuffers( __DRIdrawablePrivate *dPriv )
 592 {
 593    if (dPriv->driContextPriv && dPriv->driContextPriv->driverPrivate) {
 594       intelContextPtr intel;
 595       GLcontext *ctx;
 596       intel = (intelContextPtr) dPriv->driContextPriv->driverPrivate;
 597       ctx = &intel->ctx;
 598       if (ctx->Visual.doubleBufferMode) {
 599          _mesa_notifySwapBuffers( ctx );  /* flush pending rendering comands */
 600          if ( 0 /*intel->doPageFlip*/ ) { /* doPageFlip is never set !!! */
 601             intelPageFlip( dPriv );
 602          } else {
 603             intelCopyBuffer( dPriv );
 604          }
 605       }
 606    } else {
 607       /* XXX this shouldn't be an error but we can't handle it for now */
 608       fprintf(stderr, "%s: drawable has no context!\n", __FUNCTION__);
 609    }
 610 }
 611
 612
 613 void intelInitState( GLcontext *ctx )
 614 {
 615    /* Mesa should do this for us:
 616     */
 617    ctx->Driver.AlphaFunc( ctx,
 618                           ctx->Color.AlphaFunc,
 619                           ctx->Color.AlphaRef);
 620
 621    ctx->Driver.BlendColor( ctx,
 622                            ctx->Color.BlendColor );
 623
 624    ctx->Driver.BlendEquationSeparate( ctx,
 625                                       ctx->Color.BlendEquationRGB,
 626                                       ctx->Color.BlendEquationA);
 627
 628    ctx->Driver.BlendFuncSeparate( ctx,
 629                                   ctx->Color.BlendSrcRGB,
 630                                   ctx->Color.BlendDstRGB,
 631                                   ctx->Color.BlendSrcA,
 632                                   ctx->Color.BlendDstA);
 633
 634    ctx->Driver.ColorMask( ctx,
 635                           ctx->Color.ColorMask[RCOMP],
 636                           ctx->Color.ColorMask[GCOMP],
 637                           ctx->Color.ColorMask[BCOMP],
 638                           ctx->Color.ColorMask[ACOMP]);
 639
 640    ctx->Driver.CullFace( ctx, ctx->Polygon.CullFaceMode );
 641    ctx->Driver.DepthFunc( ctx, ctx->Depth.Func );
 642    ctx->Driver.DepthMask( ctx, ctx->Depth.Mask );
 643
 644    ctx->Driver.Enable( ctx, GL_ALPHA_TEST, ctx->Color.AlphaEnabled );
 645    ctx->Driver.Enable( ctx, GL_BLEND, ctx->Color.BlendEnabled );
 646    ctx->Driver.Enable( ctx, GL_COLOR_LOGIC_OP, ctx->Color.ColorLogicOpEnabled );
 647    ctx->Driver.Enable( ctx, GL_COLOR_SUM, ctx->Fog.ColorSumEnabled );
 648    ctx->Driver.Enable( ctx, GL_CULL_FACE, ctx->Polygon.CullFlag );
 649    ctx->Driver.Enable( ctx, GL_DEPTH_TEST, ctx->Depth.Test );
 650    ctx->Driver.Enable( ctx, GL_DITHER, ctx->Color.DitherFlag );
 651    ctx->Driver.Enable( ctx, GL_FOG, ctx->Fog.Enabled );
 652    ctx->Driver.Enable( ctx, GL_LIGHTING, ctx->Light.Enabled );
 653    ctx->Driver.Enable( ctx, GL_LINE_SMOOTH, ctx->Line.SmoothFlag );
 654    ctx->Driver.Enable( ctx, GL_POLYGON_STIPPLE, ctx->Polygon.StippleFlag );
 655    ctx->Driver.Enable( ctx, GL_SCISSOR_TEST, ctx->Scissor.Enabled );
 656    ctx->Driver.Enable( ctx, GL_STENCIL_TEST, ctx->Stencil.Enabled );
 657    ctx->Driver.Enable( ctx, GL_TEXTURE_1D, GL_FALSE );
 658    ctx->Driver.Enable( ctx, GL_TEXTURE_2D, GL_FALSE );
 659    ctx->Driver.Enable( ctx, GL_TEXTURE_RECTANGLE_NV, GL_FALSE );
 660    ctx->Driver.Enable( ctx, GL_TEXTURE_3D, GL_FALSE );
 661    ctx->Driver.Enable( ctx, GL_TEXTURE_CUBE_MAP, GL_FALSE );
 662
 663    ctx->Driver.Fogfv( ctx, GL_FOG_COLOR, ctx->Fog.Color );
 664    ctx->Driver.Fogfv( ctx, GL_FOG_MODE, 0 );
 665    ctx->Driver.Fogfv( ctx, GL_FOG_DENSITY, &ctx->Fog.Density );
 666    ctx->Driver.Fogfv( ctx, GL_FOG_START, &ctx->Fog.Start );
 667    ctx->Driver.Fogfv( ctx, GL_FOG_END, &ctx->Fog.End );
 668
 669    ctx->Driver.FrontFace( ctx, ctx->Polygon.FrontFace );
 670
 671    {
 672       GLfloat f = (GLfloat)ctx->Light.Model.ColorControl;
 673       ctx->Driver.LightModelfv( ctx, GL_LIGHT_MODEL_COLOR_CONTROL, &f );
 674    }
 675
 676    ctx->Driver.LineWidth( ctx, ctx->Line.Width );
 677    ctx->Driver.LogicOpcode( ctx, ctx->Color.LogicOp );
 678    ctx->Driver.PointSize( ctx, ctx->Point.Size );
 679    ctx->Driver.PolygonStipple( ctx, (const GLubyte *)ctx->PolygonStipple );
 680    ctx->Driver.Scissor( ctx, ctx->Scissor.X, ctx->Scissor.Y,
 681                         ctx->Scissor.Width, ctx->Scissor.Height );
 682    ctx->Driver.ShadeModel( ctx, ctx->Light.ShadeModel );
 683    ctx->Driver.StencilFunc( ctx,
 684                             ctx->Stencil.Function[0],
 685                             ctx->Stencil.Ref[0],
 686                             ctx->Stencil.ValueMask[0] );
 687    ctx->Driver.StencilMask( ctx, ctx->Stencil.WriteMask[0] );
 688    ctx->Driver.StencilOp( ctx,
 689                           ctx->Stencil.FailFunc[0],
 690                           ctx->Stencil.ZFailFunc[0],
 691                           ctx->Stencil.ZPassFunc[0]);
 692
 693
 694    ctx->Driver.DrawBuffer( ctx, ctx->Color.DrawBuffer[0] );
 695 }