src/mesa/drivers/dri/r200/r200_context.c

   1 /*
   2 Copyright (C) The Weather Channel, Inc.  2002.  All Rights Reserved.
   3
   4 The Weather Channel (TM) funded Tungsten Graphics to develop the
   5 initial release of the Radeon 8500 driver under the XFree86 license.
   6 This notice must be preserved.
   7
   8 Permission is hereby granted, free of charge, to any person obtaining
   9 a copy of this software and associated documentation files (the
  10 "Software"), to deal in the Software without restriction, including
  11 without limitation the rights to use, copy, modify, merge, publish,
  12 distribute, sublicense, and/or sell copies of the Software, and to
  13 permit persons to whom the Software is furnished to do so, subject to
  14 the following conditions:
  15
  16 The above copyright notice and this permission notice (including the
  17 next paragraph) shall be included in all copies or substantial
  18 portions of the Software.
  19
  20 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  21 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  22 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
  23 IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
  24 LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  25 OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  26 WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  27
  28 **************************************************************************/
  29
  30 /*
  31  * Authors:
  32  *   Keith Whitwell <keith@tungstengraphics.com>
  33  */
  34
  35 #include "main/glheader.h"
  36 #include "main/api_arrayelt.h"
  37 #include "main/context.h"
  38 #include "main/simple_list.h"
  39 #include "main/imports.h"
  40 #include "main/matrix.h"
  41 #include "main/extensions.h"
  42 #include "main/framebuffer.h"
  43 #include "main/state.h"
  44
  45 #include "swrast/swrast.h"
  46 #include "swrast_setup/swrast_setup.h"
  47 #include "vbo/vbo.h"
  48
  49 #include "tnl/tnl.h"
  50 #include "tnl/t_pipeline.h"
  51
  52 #include "drivers/common/driverfuncs.h"
  53
  54 #include "r200_context.h"
  55 #include "r200_ioctl.h"
  56 #include "r200_state.h"
  57 #include "r200_pixel.h"
  58 #include "r200_tex.h"
  59 #include "r200_swtcl.h"
  60 #include "r200_tcl.h"
  61 #include "r200_maos.h"
  62 #include "r200_vertprog.h"
  63
  64 #include "radeon_span.h"
  65
  66 #define need_GL_ARB_multisample
  67 #define need_GL_ARB_texture_compression
  68 #define need_GL_ARB_vertex_buffer_object
  69 #define need_GL_ARB_vertex_program
  70 #define need_GL_ATI_fragment_shader
  71 #define need_GL_EXT_blend_minmax
  72 #define need_GL_EXT_fog_coord
  73 #define need_GL_EXT_multi_draw_arrays
  74 #define need_GL_EXT_secondary_color
  75 #define need_GL_EXT_blend_equation_separate
  76 #define need_GL_EXT_blend_func_separate
  77 #define need_GL_NV_vertex_program
  78 #define need_GL_ARB_point_parameters
  79 #include "extension_helper.h"
  80
  81 #define DRIVER_DATE     "20060602"
  82
  83 #include "vblank.h"
  84 #include "utils.h"
  85 #include "xmlpool.h" /* for symbolic values of enum-type options */
  86
  87 /* Return various strings for glGetString().
  88  */
  89 static const GLubyte *r200GetString( GLcontext *ctx, GLenum name )
  90 {
  91    r200ContextPtr rmesa = R200_CONTEXT(ctx);
  92    static char buffer[128];
  93    unsigned   offset;
  94    GLuint agp_mode = (rmesa->radeon.radeonScreen->card_type == RADEON_CARD_PCI)? 0 :
  95       rmesa->radeon.radeonScreen->AGPMode;
  96
  97    switch ( name ) {
  98    case GL_VENDOR:
  99       return (GLubyte *)"Tungsten Graphics, Inc.";
 100
 101    case GL_RENDERER:
 102       offset = driGetRendererString( buffer, "R200", DRIVER_DATE,
 103                                      agp_mode );
 104
 105       sprintf( & buffer[ offset ], " %sTCL",
 106                !(rmesa->radeon.TclFallback & R200_TCL_FALLBACK_TCL_DISABLE)
 107                ? "" : "NO-" );
 108
 109       return (GLubyte *)buffer;
 110
 111    default:
 112       return NULL;
 113    }
 114 }
 115
 116
 117 /* Extension strings exported by the R200 driver.
 118  */
 119 const struct dri_extension card_extensions[] =
 120 {
 121     { "GL_ARB_multisample",                GL_ARB_multisample_functions },
 122     { "GL_ARB_multitexture",               NULL },
 123     { "GL_ARB_texture_border_clamp",       NULL },
 124     { "GL_ARB_texture_compression",        GL_ARB_texture_compression_functions },
 125     { "GL_ARB_texture_env_add",            NULL },
 126     { "GL_ARB_texture_env_combine",        NULL },
 127     { "GL_ARB_texture_env_dot3",           NULL },
 128     { "GL_ARB_texture_env_crossbar",       NULL },
 129     { "GL_ARB_texture_mirrored_repeat",    NULL },
 130     { "GL_ARB_vertex_buffer_object",       GL_ARB_vertex_buffer_object_functions },
 131     { "GL_EXT_blend_minmax",               GL_EXT_blend_minmax_functions },
 132     { "GL_EXT_blend_subtract",             NULL },
 133     { "GL_EXT_fog_coord",                  GL_EXT_fog_coord_functions },
 134     { "GL_EXT_multi_draw_arrays",          GL_EXT_multi_draw_arrays_functions },
 135     { "GL_EXT_secondary_color",            GL_EXT_secondary_color_functions },
 136     { "GL_EXT_stencil_wrap",               NULL },
 137     { "GL_EXT_texture_edge_clamp",         NULL },
 138     { "GL_EXT_texture_env_combine",        NULL },
 139     { "GL_EXT_texture_env_dot3",           NULL },
 140     { "GL_EXT_texture_filter_anisotropic", NULL },
 141     { "GL_EXT_texture_lod_bias",           NULL },
 142     { "GL_EXT_texture_mirror_clamp",       NULL },
 143     { "GL_EXT_texture_rectangle",          NULL },
 144     { "GL_ATI_texture_env_combine3",       NULL },
 145     { "GL_ATI_texture_mirror_once",        NULL },
 146     { "GL_MESA_pack_invert",               NULL },
 147     { "GL_NV_blend_square",                NULL },
 148     { "GL_SGIS_generate_mipmap",           NULL },
 149     { NULL,                                NULL }
 150 };
 151
 152 const struct dri_extension blend_extensions[] = {
 153     { "GL_EXT_blend_equation_separate",    GL_EXT_blend_equation_separate_functions },
 154     { "GL_EXT_blend_func_separate",        GL_EXT_blend_func_separate_functions },
 155     { NULL,                                NULL }
 156 };
 157
 158 const struct dri_extension ARB_vp_extension[] = {
 159     { "GL_ARB_vertex_program",             GL_ARB_vertex_program_functions }
 160 };
 161
 162 const struct dri_extension NV_vp_extension[] = {
 163     { "GL_NV_vertex_program",              GL_NV_vertex_program_functions }
 164 };
 165
 166 const struct dri_extension ATI_fs_extension[] = {
 167     { "GL_ATI_fragment_shader",            GL_ATI_fragment_shader_functions }
 168 };
 169
 170 const struct dri_extension point_extensions[] = {
 171     { "GL_ARB_point_sprite",               NULL },
 172     { "GL_ARB_point_parameters",           GL_ARB_point_parameters_functions },
 173     { NULL,                                NULL }
 174 };
 175
 176 extern const struct tnl_pipeline_stage _r200_render_stage;
 177 extern const struct tnl_pipeline_stage _r200_tcl_stage;
 178
 179 static const struct tnl_pipeline_stage *r200_pipeline[] = {
 180
 181    /* Try and go straight to t&l
 182     */
 183    &_r200_tcl_stage,
 184
 185    /* Catch any t&l fallbacks
 186     */
 187    &_tnl_vertex_transform_stage,
 188    &_tnl_normal_transform_stage,
 189    &_tnl_lighting_stage,
 190    &_tnl_fog_coordinate_stage,
 191    &_tnl_texgen_stage,
 192    &_tnl_texture_transform_stage,
 193    &_tnl_point_attenuation_stage,
 194    &_tnl_vertex_program_stage,
 195    /* Try again to go to tcl?
 196     *     - no good for asymmetric-twoside (do with multipass)
 197     *     - no good for asymmetric-unfilled (do with multipass)
 198     *     - good for material
 199     *     - good for texgen
 200     *     - need to manipulate a bit of state
 201     *
 202     * - worth it/not worth it?
 203     */
 204
 205    /* Else do them here.
 206     */
 207 /*    &_r200_render_stage,  */ /* FIXME: bugs with ut2003 */
 208    &_tnl_render_stage,          /* FALLBACK:  */
 209    NULL,
 210 };
 211
 212
 213
 214 /* Initialize the driver's misc functions.
 215  */
 216 static void r200InitDriverFuncs( struct dd_function_table *functions )
 217 {
 218     functions->GetBufferSize            = NULL; /* OBSOLETE */
 219     functions->GetString                = r200GetString;
 220 }
 221
 222 static const struct dri_debug_control debug_control[] =
 223 {
 224     { "fall",  DEBUG_FALLBACKS },
 225     { "tex",   DEBUG_TEXTURE },
 226     { "ioctl", DEBUG_IOCTL },
 227     { "prim",  DEBUG_PRIMS },
 228     { "vert",  DEBUG_VERTS },
 229     { "state", DEBUG_STATE },
 230     { "code",  DEBUG_CODEGEN },
 231     { "vfmt",  DEBUG_VFMT },
 232     { "vtxf",  DEBUG_VFMT },
 233     { "verb",  DEBUG_VERBOSE },
 234     { "dri",   DEBUG_DRI },
 235     { "dma",   DEBUG_DMA },
 236     { "san",   DEBUG_SANITY },
 237     { "sync",  DEBUG_SYNC },
 238     { "pix",   DEBUG_PIXEL },
 239     { "mem",   DEBUG_MEMORY },
 240     { NULL,    0 }
 241 };
 242
 243 static void r200_get_lock(radeonContextPtr radeon)
 244 {
 245    r200ContextPtr rmesa = (r200ContextPtr)radeon;
 246    drm_radeon_sarea_t *sarea = radeon->sarea;
 247    int i;
 248
 249    R200_STATECHANGE( rmesa, ctx );
 250    if (rmesa->radeon.sarea->tiling_enabled) {
 251       rmesa->hw.ctx.cmd[CTX_RB3D_COLORPITCH] |= R200_COLOR_TILE_ENABLE;
 252    }
 253    else rmesa->hw.ctx.cmd[CTX_RB3D_COLORPITCH] &= ~R200_COLOR_TILE_ENABLE;
 254
 255    if ( sarea->ctx_owner != rmesa->radeon.dri.hwContext ) {
 256       sarea->ctx_owner = rmesa->radeon.dri.hwContext;
 257    }
 258
 259    for ( i = 0 ; i < rmesa->radeon.nr_heaps ; i++ ) {
 260       DRI_AGE_TEXTURES( rmesa->radeon.texture_heaps[ i ] );
 261    }
 262 }
 263
 264 static void r200_vtbl_emit_cs_header(struct radeon_cs *cs, radeonContextPtr rmesa)
 265 {
 266 }
 267
 268
 269 static void r200_init_vtbl(radeonContextPtr radeon)
 270 {
 271    radeon->vtbl.get_lock = r200_get_lock;
 272    radeon->vtbl.update_viewport_offset = r200UpdateViewportOffset;
 273    radeon->vtbl.update_draw_buffer = r200UpdateDrawBuffer;
 274    radeon->vtbl.emit_cs_header = r200_vtbl_emit_cs_header;
 275    radeon->vtbl.swtcl_flush = r200_swtcl_flush;
 276 }
 277
 278
 279 /* Create the device specific rendering context.
 280  */
 281 GLboolean r200CreateContext( const __GLcontextModes *glVisual,
 282                              __DRIcontextPrivate *driContextPriv,
 283                              void *sharedContextPrivate)
 284 {
 285    __DRIscreenPrivate *sPriv = driContextPriv->driScreenPriv;
 286    radeonScreenPtr screen = (radeonScreenPtr)(sPriv->private);
 287    struct dd_function_table functions;
 288    r200ContextPtr rmesa;
 289    GLcontext *ctx;
 290    int i;
 291    int tcl_mode;
 292
 293    assert(glVisual);
 294    assert(driContextPriv);
 295    assert(screen);
 296
 297    /* Allocate the R200 context */
 298    rmesa = (r200ContextPtr) CALLOC( sizeof(*rmesa) );
 299    if ( !rmesa )
 300       return GL_FALSE;
 301
 302    r200_init_vtbl(&rmesa->radeon);
 303    /* init exp fog table data */
 304    r200InitStaticFogData();
 305
 306    /* Parse configuration files.
 307     * Do this here so that initialMaxAnisotropy is set before we create
 308     * the default textures.
 309     */
 310    driParseConfigFiles (&rmesa->radeon.optionCache, &screen->optionCache,
 311                         screen->driScreen->myNum, "r200");
 312    rmesa->radeon.initialMaxAnisotropy = driQueryOptionf(&rmesa->radeon.optionCache,
 313                                                         "def_max_anisotropy");
 314
 315    if ( driQueryOptionb( &rmesa->radeon.optionCache, "hyperz" ) ) {
 316       if ( sPriv->drm_version.minor < 13 )
 317          fprintf( stderr, "DRM version 1.%d too old to support HyperZ, "
 318                           "disabling.\n", sPriv->drm_version.minor );
 319       else
 320          rmesa->using_hyperz = GL_TRUE;
 321    }
 322
 323    if ( sPriv->drm_version.minor >= 15 )
 324       rmesa->texmicrotile = GL_TRUE;
 325
 326    /* Init default driver functions then plug in our R200-specific functions
 327     * (the texture functions are especially important)
 328     */
 329    _mesa_init_driver_functions(&functions);
 330    r200InitDriverFuncs(&functions);
 331    r200InitIoctlFuncs(&functions);
 332    r200InitStateFuncs(&functions);
 333    r200InitTextureFuncs(&functions);
 334    r200InitShaderFuncs(&functions);
 335
 336    if (!radeonInitContext(&rmesa->radeon, &functions,
 337                           glVisual, driContextPriv,
 338                           sharedContextPrivate)) {
 339      FREE(rmesa);
 340      return GL_FALSE;
 341    }
 342
 343
 344    (void) memset( rmesa->radeon.texture_heaps, 0, sizeof( rmesa->radeon.texture_heaps ) );
 345    make_empty_list( & rmesa->radeon.swapped );
 346
 347    rmesa->radeon.nr_heaps = 1 /* screen->numTexHeaps */ ;
 348    assert(rmesa->radeon.nr_heaps < RADEON_NR_TEX_HEAPS);
 349 #if 0
 350    for ( i = 0 ; i < rmesa->radeon.nr_heaps ; i++ ) {
 351       rmesa->radeon.texture_heaps[i] = driCreateTextureHeap( i, rmesa,
 352             screen->texSize[i],
 353             12,
 354             RADEON_NR_TEX_REGIONS,
 355             (drmTextureRegionPtr)rmesa->radeon.sarea->tex_list[i],
 356             & rmesa->radeon.sarea->tex_age[i],
 357             & rmesa->radeon.swapped,
 358             sizeof( radeonTexObj ),
 359             (destroy_texture_object_t *) r200DestroyTexObj );
 360    }
 361 #endif
 362    rmesa->radeon.texture_depth = driQueryOptioni (&rmesa->radeon.optionCache,
 363                                            "texture_depth");
 364    if (rmesa->radeon.texture_depth == DRI_CONF_TEXTURE_DEPTH_FB)
 365       rmesa->radeon.texture_depth = ( screen->cpp == 4 ) ?
 366          DRI_CONF_TEXTURE_DEPTH_32 : DRI_CONF_TEXTURE_DEPTH_16;
 367
 368    rmesa->radeon.swtcl.RenderIndex = ~0;
 369    rmesa->radeon.hw.all_dirty = 1;
 370
 371    /* Set the maximum texture size small enough that we can guarentee that
 372     * all texture units can bind a maximal texture and have all of them in
 373     * texturable memory at once. Depending on the allow_large_textures driconf
 374     * setting allow larger textures.
 375     */
 376
 377    ctx = rmesa->radeon.glCtx;
 378    ctx->Const.MaxTextureUnits = driQueryOptioni (&rmesa->radeon.optionCache,
 379                                                  "texture_units");
 380    ctx->Const.MaxTextureImageUnits = ctx->Const.MaxTextureUnits;
 381    ctx->Const.MaxTextureCoordUnits = ctx->Const.MaxTextureUnits;
 382
 383    i = driQueryOptioni( &rmesa->radeon.optionCache, "allow_large_textures");
 384
 385    driCalculateMaxTextureLevels( rmesa->radeon.texture_heaps,
 386                                  rmesa->radeon.nr_heaps,
 387                                  & ctx->Const,
 388                                  4,
 389                                  11, /* max 2D texture size is 2048x2048 */
 390 #if ENABLE_HW_3D_TEXTURE
 391                                  8,  /* max 3D texture size is 256^3 */
 392 #else
 393                                  0,  /* 3D textures unsupported */
 394 #endif
 395                                  11, /* max cube texture size is 2048x2048 */
 396                                  11, /* max texture rectangle size is 2048x2048 */
 397                                  12,
 398                                  GL_FALSE,
 399                                  i );
 400
 401    ctx->Const.MaxTextureMaxAnisotropy = 16.0;
 402
 403    /* No wide AA points.
 404     */
 405    ctx->Const.MinPointSize = 1.0;
 406    ctx->Const.MinPointSizeAA = 1.0;
 407    ctx->Const.MaxPointSizeAA = 1.0;
 408    ctx->Const.PointSizeGranularity = 0.0625;
 409    if (rmesa->radeon.radeonScreen->drmSupportsPointSprites)
 410       ctx->Const.MaxPointSize = 2047.0;
 411    else
 412       ctx->Const.MaxPointSize = 1.0;
 413
 414    /* mesa initialization problem - _mesa_init_point was already called */
 415    ctx->Point.MaxSize = ctx->Const.MaxPointSize;
 416
 417    ctx->Const.MinLineWidth = 1.0;
 418    ctx->Const.MinLineWidthAA = 1.0;
 419    ctx->Const.MaxLineWidth = 10.0;
 420    ctx->Const.MaxLineWidthAA = 10.0;
 421    ctx->Const.LineWidthGranularity = 0.0625;
 422
 423    ctx->Const.VertexProgram.MaxNativeInstructions = R200_VSF_MAX_INST;
 424    ctx->Const.VertexProgram.MaxNativeAttribs = 12;
 425    ctx->Const.VertexProgram.MaxNativeTemps = R200_VSF_MAX_TEMPS;
 426    ctx->Const.VertexProgram.MaxNativeParameters = R200_VSF_MAX_PARAM;
 427    ctx->Const.VertexProgram.MaxNativeAddressRegs = 1;
 428
 429    /* Initialize the software rasterizer and helper modules.
 430     */
 431    _swrast_CreateContext( ctx );
 432    _vbo_CreateContext( ctx );
 433    _tnl_CreateContext( ctx );
 434    _swsetup_CreateContext( ctx );
 435    _ae_create_context( ctx );
 436
 437    /* Install the customized pipeline:
 438     */
 439    _tnl_destroy_pipeline( ctx );
 440    _tnl_install_pipeline( ctx, r200_pipeline );
 441
 442    /* Try and keep materials and vertices separate:
 443     */
 444 /*    _tnl_isolate_materials( ctx, GL_TRUE ); */
 445
 446
 447    /* Configure swrast and TNL to match hardware characteristics:
 448     */
 449    _swrast_allow_pixel_fog( ctx, GL_FALSE );
 450    _swrast_allow_vertex_fog( ctx, GL_TRUE );
 451    _tnl_allow_pixel_fog( ctx, GL_FALSE );
 452    _tnl_allow_vertex_fog( ctx, GL_TRUE );
 453
 454
 455    for ( i = 0 ; i < R200_MAX_TEXTURE_UNITS ; i++ ) {
 456       _math_matrix_ctr( &rmesa->TexGenMatrix[i] );
 457       _math_matrix_set_identity( &rmesa->TexGenMatrix[i] );
 458    }
 459    _math_matrix_ctr( &rmesa->tmpmat );
 460    _math_matrix_set_identity( &rmesa->tmpmat );
 461
 462    driInitExtensions( ctx, card_extensions, GL_TRUE );
 463    if (!(rmesa->radeon.radeonScreen->chip_flags & R200_CHIPSET_YCBCR_BROKEN)) {
 464      /* yuv textures don't work with some chips - R200 / rv280 okay so far
 465         others get the bit ordering right but don't actually do YUV-RGB conversion */
 466       _mesa_enable_extension( ctx, "GL_MESA_ycbcr_texture" );
 467    }
 468    if (rmesa->radeon.glCtx->Mesa_DXTn) {
 469       _mesa_enable_extension( ctx, "GL_EXT_texture_compression_s3tc" );
 470       _mesa_enable_extension( ctx, "GL_S3_s3tc" );
 471    }
 472    else if (driQueryOptionb (&rmesa->radeon.optionCache, "force_s3tc_enable")) {
 473       _mesa_enable_extension( ctx, "GL_EXT_texture_compression_s3tc" );
 474    }
 475
 476    if (rmesa->radeon.radeonScreen->drmSupportsCubeMapsR200)
 477       _mesa_enable_extension( ctx, "GL_ARB_texture_cube_map" );
 478    if (rmesa->radeon.radeonScreen->drmSupportsBlendColor) {
 479        driInitExtensions( ctx, blend_extensions, GL_FALSE );
 480    }
 481    if(rmesa->radeon.radeonScreen->drmSupportsVertexProgram)
 482       driInitSingleExtension( ctx, ARB_vp_extension );
 483    if(driQueryOptionb(&rmesa->radeon.optionCache, "nv_vertex_program"))
 484       driInitSingleExtension( ctx, NV_vp_extension );
 485
 486    if ((ctx->Const.MaxTextureUnits == 6) && rmesa->radeon.radeonScreen->drmSupportsFragShader)
 487       driInitSingleExtension( ctx, ATI_fs_extension );
 488    if (rmesa->radeon.radeonScreen->drmSupportsPointSprites)
 489       driInitExtensions( ctx, point_extensions, GL_FALSE );
 490 #if 0
 491    r200InitDriverFuncs( ctx );
 492    r200InitIoctlFuncs( ctx );
 493    r200InitStateFuncs( ctx );
 494    r200InitTextureFuncs( ctx );
 495 #endif
 496    /* plug in a few more device driver functions */
 497    /* XXX these should really go right after _mesa_init_driver_functions() */
 498    radeonInitSpanFuncs( ctx );
 499    r200InitPixelFuncs( ctx );
 500    r200InitTnlFuncs( ctx );
 501    r200InitState( rmesa );
 502    r200InitSwtcl( ctx );
 503
 504    rmesa->prefer_gart_client_texturing =
 505       (getenv("R200_GART_CLIENT_TEXTURES") != 0);
 506
 507 #if DO_DEBUG
 508    R200_DEBUG  = driParseDebugString( getenv( "R200_DEBUG" ),
 509                                       debug_control );
 510    R200_DEBUG |= driParseDebugString( getenv( "RADEON_DEBUG" ),
 511                                       debug_control );
 512 #endif
 513
 514    tcl_mode = driQueryOptioni(&rmesa->radeon.optionCache, "tcl_mode");
 515    if (driQueryOptionb(&rmesa->radeon.optionCache, "no_rast")) {
 516       fprintf(stderr, "disabling 3D acceleration\n");
 517       FALLBACK(rmesa, R200_FALLBACK_DISABLE, 1);
 518    }
 519    else if (tcl_mode == DRI_CONF_TCL_SW || getenv("R200_NO_TCL") ||
 520             !(rmesa->radeon.radeonScreen->chip_flags & RADEON_CHIPSET_TCL)) {
 521       if (rmesa->radeon.radeonScreen->chip_flags & RADEON_CHIPSET_TCL) {
 522          rmesa->radeon.radeonScreen->chip_flags &= ~RADEON_CHIPSET_TCL;
 523          fprintf(stderr, "Disabling HW TCL support\n");
 524       }
 525       TCL_FALLBACK(rmesa->radeon.glCtx, R200_TCL_FALLBACK_TCL_DISABLE, 1);
 526    }
 527
 528    return GL_TRUE;
 529 }
 530
 531
 532 /* Destroy the device specific context.
 533  */
 534 /* Destroy the Mesa and driver specific context data.
 535  */
 536 void r200DestroyContext( __DRIcontextPrivate *driContextPriv )
 537 {
 538    GET_CURRENT_CONTEXT(ctx);
 539    r200ContextPtr rmesa = (r200ContextPtr) driContextPriv->driverPrivate;
 540    r200ContextPtr current = ctx ? R200_CONTEXT(ctx) : NULL;
 541
 542    /* check if we're deleting the currently bound context */
 543    if (rmesa == current) {
 544       radeon_firevertices(&rmesa->radeon);
 545       _mesa_make_current(NULL, NULL, NULL);
 546    }
 547
 548    /* Free r200 context resources */
 549    assert(rmesa); /* should never be null */
 550    if ( rmesa ) {
 551       GLboolean   release_texture_heaps;
 552
 553
 554       release_texture_heaps = (rmesa->radeon.glCtx->Shared->RefCount == 1);
 555       _swsetup_DestroyContext( rmesa->radeon.glCtx );
 556       _tnl_DestroyContext( rmesa->radeon.glCtx );
 557       _vbo_DestroyContext( rmesa->radeon.glCtx );
 558       _swrast_DestroyContext( rmesa->radeon.glCtx );
 559
 560       r200DestroySwtcl( rmesa->radeon.glCtx );
 561       r200ReleaseArrays( rmesa->radeon.glCtx, ~0 );
 562
 563       if (rmesa->radeon.dma.current) {
 564          rcommonFlushCmdBuf( &rmesa->radeon, __FUNCTION__ );
 565       }
 566
 567       if (rmesa->radeon.state.scissor.pClipRects) {
 568          FREE(rmesa->radeon.state.scissor.pClipRects);
 569          rmesa->radeon.state.scissor.pClipRects = NULL;
 570       }
 571
 572
 573       if ( release_texture_heaps ) {
 574          /* This share group is about to go away, free our private
 575           * texture object data.
 576           */
 577          int i;
 578
 579          for ( i = 0 ; i < rmesa->radeon.nr_heaps ; i++ ) {
 580             driDestroyTextureHeap( rmesa->radeon.texture_heaps[ i ] );
 581             rmesa->radeon.texture_heaps[ i ] = NULL;
 582          }
 583
 584          assert( is_empty_list( & rmesa->radeon.swapped ) );
 585       }
 586
 587       radeonCleanupContext(&rmesa->radeon);
 588
 589       FREE( rmesa );
 590    }
 591 }
 592
 593
 594
 595 /* Force the context `c' to be unbound from its buffer.
 596  */
 597 GLboolean
 598 r200UnbindContext( __DRIcontextPrivate *driContextPriv )
 599 {
 600    r200ContextPtr rmesa = (r200ContextPtr) driContextPriv->driverPrivate;
 601
 602    if (R200_DEBUG & DEBUG_DRI)
 603       fprintf(stderr, "%s ctx %p\n", __FUNCTION__, (void *)rmesa->radeon.glCtx);
 604
 605    return GL_TRUE;
 606 }