src/mesa/drivers/dri/r300/r300_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  *   Nicolai Haehnle <prefect_@gmx.net>
  34  */
  35 #include "glheader.h"
  36 #include "api_arrayelt.h"
  37 #include "context.h"
  38 #include "simple_list.h"
  39 #include "imports.h"
  40 #include "matrix.h"
  41 #include "extensions.h"
  42 #include "state.h"
  43 #include "bufferobj.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 #include "tnl/t_vp_build.h"
  52
  53 #include "drivers/common/driverfuncs.h"
  54
  55 #include "radeon_ioctl.h"
  56 #include "radeon_span.h"
  57 #include "r300_context.h"
  58 #include "r300_cmdbuf.h"
  59 #include "r300_state.h"
  60 #include "r300_ioctl.h"
  61 #include "r300_tex.h"
  62 #include "r300_maos.h"
  63
  64 #ifdef USER_BUFFERS
  65 #include "radeon_mm.h"
  66 #endif
  67
  68 #include "vblank.h"
  69 #include "utils.h"
  70 #include "xmlpool.h"            /* for symbolic values of enum-type options */
  71
  72 /* hw_tcl_on derives from future_hw_tcl_on when its safe to change it. */
  73 int future_hw_tcl_on=1;
  74 int hw_tcl_on=1;
  75
  76 #define need_GL_EXT_stencil_two_side
  77 #define need_GL_ARB_multisample
  78 #define need_GL_ARB_texture_compression
  79 #define need_GL_ARB_vertex_buffer_object
  80 #define need_GL_ARB_vertex_program
  81 #define need_GL_EXT_blend_minmax
  82 //#define need_GL_EXT_fog_coord
  83 #define need_GL_EXT_secondary_color
  84 #define need_GL_EXT_blend_equation_separate
  85 #define need_GL_EXT_blend_func_separate
  86 #define need_GL_EXT_gpu_program_parameters
  87 #define need_GL_NV_vertex_program
  88 #include "extension_helper.h"
  89
  90 const struct dri_extension card_extensions[] = {
  91   {"GL_ARB_multisample",                GL_ARB_multisample_functions},
  92   {"GL_ARB_multitexture",               NULL},
  93   {"GL_ARB_texture_border_clamp",       NULL},
  94   {"GL_ARB_texture_compression",        GL_ARB_texture_compression_functions},
  95   {"GL_ARB_texture_cube_map",           NULL},
  96   {"GL_ARB_texture_env_add",            NULL},
  97   {"GL_ARB_texture_env_combine",        NULL},
  98   {"GL_ARB_texture_env_crossbar",       NULL},
  99   {"GL_ARB_texture_env_dot3",           NULL},
 100   {"GL_ARB_texture_mirrored_repeat",    NULL},
 101   {"GL_ARB_vertex_buffer_object",       GL_ARB_vertex_buffer_object_functions},
 102   {"GL_ARB_vertex_program",             GL_ARB_vertex_program_functions},
 103   {"GL_ARB_fragment_program",           NULL},
 104   {"GL_EXT_blend_equation_separate",    GL_EXT_blend_equation_separate_functions},
 105   {"GL_EXT_blend_func_separate",        GL_EXT_blend_func_separate_functions},
 106   {"GL_EXT_blend_minmax",               GL_EXT_blend_minmax_functions},
 107   {"GL_EXT_blend_subtract",             NULL},
 108 //  {"GL_EXT_fog_coord",                        GL_EXT_fog_coord_functions },
 109   {"GL_EXT_gpu_program_parameters",     GL_EXT_gpu_program_parameters_functions},
 110   {"GL_EXT_secondary_color",            GL_EXT_secondary_color_functions},
 111   {"GL_EXT_stencil_wrap",               NULL},
 112   {"GL_EXT_texture_edge_clamp",         NULL},
 113   {"GL_EXT_texture_env_combine",        NULL},
 114   {"GL_EXT_texture_env_dot3",           NULL},
 115   {"GL_EXT_texture_filter_anisotropic", NULL},
 116   {"GL_EXT_texture_lod_bias",           NULL},
 117   {"GL_EXT_texture_mirror_clamp",       NULL},
 118   {"GL_EXT_texture_rectangle",          NULL},
 119   {"GL_ATI_texture_env_combine3",       NULL},
 120   {"GL_ATI_texture_mirror_once",        NULL},
 121   {"GL_MESA_pack_invert",               NULL},
 122   {"GL_MESA_ycbcr_texture",             NULL},
 123   {"GL_MESAX_texture_float",            NULL},
 124   {"GL_NV_blend_square",                NULL},
 125   {"GL_NV_vertex_program",              GL_NV_vertex_program_functions},
 126   {"GL_SGIS_generate_mipmap",           NULL},
 127   {NULL,                                NULL}
 128 };
 129
 130 const struct dri_extension stencil_two_side[] = {
 131   {"GL_EXT_stencil_two_side",           GL_EXT_stencil_two_side_functions},
 132 };
 133
 134 extern struct tnl_pipeline_stage _r300_render_stage;
 135 extern const struct tnl_pipeline_stage _r300_tcl_stage;
 136 extern const struct tnl_pipeline_stage _r300_texrect_stage;
 137
 138 static const struct tnl_pipeline_stage *r300_pipeline[] = {
 139
 140         /* Try and go straight to t&l
 141          */
 142         &_r300_tcl_stage,
 143
 144         /* Catch any t&l fallbacks
 145          */
 146         &_tnl_vertex_transform_stage,
 147         &_tnl_normal_transform_stage,
 148         &_tnl_lighting_stage,
 149         &_tnl_fog_coordinate_stage,
 150         &_tnl_texgen_stage,
 151         &_tnl_texture_transform_stage,
 152         &_tnl_arb_vertex_program_stage,
 153         &_tnl_vertex_program_stage,
 154
 155         /* Try again to go to tcl?
 156          *     - no good for asymmetric-twoside (do with multipass)
 157          *     - no good for asymmetric-unfilled (do with multipass)
 158          *     - good for material
 159          *     - good for texgen
 160          *     - need to manipulate a bit of state
 161          *
 162          * - worth it/not worth it?
 163          */
 164
 165         /* Else do them here.
 166          */
 167         /* scale texture rectangle to 0..1. */
 168         &_r300_texrect_stage,
 169         &_r300_render_stage,
 170         &_tnl_render_stage,     /* FALLBACK  */
 171         0,
 172 };
 173
 174
 175 /* Create the device specific rendering context.
 176  */
 177 GLboolean r300CreateContext(const __GLcontextModes * glVisual,
 178                             __DRIcontextPrivate * driContextPriv,
 179                             void *sharedContextPrivate)
 180 {
 181         __DRIscreenPrivate *sPriv = driContextPriv->driScreenPriv;
 182         radeonScreenPtr screen = (radeonScreenPtr) (sPriv->private);
 183         struct dd_function_table functions;
 184         r300ContextPtr r300;
 185         GLcontext *ctx;
 186         int tcl_mode, i;
 187
 188         assert(glVisual);
 189         assert(driContextPriv);
 190         assert(screen);
 191
 192         /* Allocate the R300 context */
 193         r300 = (r300ContextPtr)CALLOC(sizeof(*r300));
 194         if (!r300)
 195                 return GL_FALSE;
 196
 197         /* Parse configuration files.
 198          * Do this here so that initialMaxAnisotropy is set before we create
 199          * the default textures.
 200          */
 201         driParseConfigFiles(&r300->radeon.optionCache, &screen->optionCache,
 202                             screen->driScreen->myNum, "r300");
 203         r300->initialMaxAnisotropy = driQueryOptionf(&r300->radeon.optionCache,
 204                                                      "def_max_anisotropy");
 205
 206         //r300->texmicrotile = GL_TRUE;
 207
 208         /* Init default driver functions then plug in our R300-specific functions
 209          * (the texture functions are especially important)
 210          */
 211         _mesa_init_driver_functions(&functions);
 212         r300InitIoctlFuncs(&functions);
 213         r300InitStateFuncs(&functions);
 214         r300InitTextureFuncs(&functions);
 215         r300InitShaderFuncs(&functions);
 216
 217 #ifdef USER_BUFFERS
 218         radeon_mm_init(r300);
 219 #endif
 220 #ifdef HW_VBOS
 221         if (hw_tcl_on) {
 222                 r300_init_vbo_funcs(&functions);
 223         }
 224 #endif
 225         if (!radeonInitContext(&r300->radeon, &functions,
 226                                glVisual, driContextPriv, sharedContextPrivate)) {
 227                 FREE(r300);
 228                 return GL_FALSE;
 229         }
 230
 231         /* Init r300 context data */
 232         r300->dma.buf0_address = r300->radeon.radeonScreen->buffers->list[0].address;
 233
 234         (void)memset(r300->texture_heaps, 0, sizeof(r300->texture_heaps));
 235         make_empty_list(&r300->swapped);
 236
 237         r300->nr_heaps = 1 /* screen->numTexHeaps */ ;
 238         assert(r300->nr_heaps < RADEON_NR_TEX_HEAPS);
 239         for (i = 0; i < r300->nr_heaps; i++) {
 240                 r300->texture_heaps[i] = driCreateTextureHeap(i, r300,
 241                                                                screen->
 242                                                                texSize[i], 12,
 243                                                                RADEON_NR_TEX_REGIONS,
 244                                                                (drmTextureRegionPtr)
 245                                                                r300->radeon.sarea->
 246                                                                tex_list[i],
 247                                                                &r300->radeon.sarea->
 248                                                                tex_age[i],
 249                                                                &r300->swapped,
 250                                                                sizeof
 251                                                                (r300TexObj),
 252                                                                (destroy_texture_object_t
 253                                                                 *)
 254                                                                r300DestroyTexObj);
 255         }
 256         r300->texture_depth = driQueryOptioni(&r300->radeon.optionCache,
 257                                                "texture_depth");
 258         if (r300->texture_depth == DRI_CONF_TEXTURE_DEPTH_FB)
 259                 r300->texture_depth = (screen->cpp == 4) ?
 260                     DRI_CONF_TEXTURE_DEPTH_32 : DRI_CONF_TEXTURE_DEPTH_16;
 261
 262         /* Set the maximum texture size small enough that we can guarentee that
 263          * all texture units can bind a maximal texture and have them both in
 264          * texturable memory at once.
 265          */
 266
 267         ctx = r300->radeon.glCtx;
 268
 269         ctx->Const.MaxTextureImageUnits = driQueryOptioni(&r300->radeon.optionCache,
 270                                                      "texture_image_units");
 271         ctx->Const.MaxTextureCoordUnits = driQueryOptioni(&r300->radeon.optionCache,
 272                                                      "texture_coord_units");
 273         ctx->Const.MaxTextureUnits = MIN2(ctx->Const.MaxTextureImageUnits,
 274                                           ctx->Const.MaxTextureCoordUnits);
 275         ctx->Const.MaxTextureMaxAnisotropy = 16.0;
 276
 277         ctx->Const.MinPointSize = 1.0;
 278         ctx->Const.MinPointSizeAA = 1.0;
 279         ctx->Const.MaxPointSize = R300_POINTSIZE_MAX;
 280         ctx->Const.MaxPointSizeAA = R300_POINTSIZE_MAX;
 281
 282         ctx->Const.MinLineWidth = 1.0;
 283         ctx->Const.MinLineWidthAA = 1.0;
 284         ctx->Const.MaxLineWidth = R300_LINESIZE_MAX;
 285         ctx->Const.MaxLineWidthAA = R300_LINESIZE_MAX;
 286
 287 #ifdef USER_BUFFERS
 288         /* Needs further modifications */
 289 #if 0
 290         ctx->Const.MaxArrayLockSize = (/*512*/RADEON_BUFFER_SIZE*16*1024) / (4*4);
 291 #endif
 292 #endif
 293
 294         /* Initialize the software rasterizer and helper modules.
 295          */
 296         _swrast_CreateContext(ctx);
 297         _vbo_CreateContext(ctx);
 298         _tnl_CreateContext(ctx);
 299         _swsetup_CreateContext(ctx);
 300         _swsetup_Wakeup(ctx);
 301         _ae_create_context(ctx);
 302
 303         /* Install the customized pipeline:
 304          */
 305         _tnl_destroy_pipeline(ctx);
 306         _tnl_install_pipeline(ctx, r300_pipeline);
 307
 308         /* Try and keep materials and vertices separate:
 309          */
 310 /*      _tnl_isolate_materials(ctx, GL_TRUE); */
 311
 312         /* Configure swrast and TNL to match hardware characteristics:
 313          */
 314         _swrast_allow_pixel_fog(ctx, GL_FALSE);
 315         _swrast_allow_vertex_fog(ctx, GL_TRUE);
 316         _tnl_allow_pixel_fog(ctx, GL_FALSE);
 317         _tnl_allow_vertex_fog(ctx, GL_TRUE);
 318
 319         /* currently bogus data */
 320         ctx->Const.VertexProgram.MaxInstructions=VSF_MAX_FRAGMENT_LENGTH/4;
 321         ctx->Const.VertexProgram.MaxNativeInstructions=VSF_MAX_FRAGMENT_LENGTH/4;
 322         ctx->Const.VertexProgram.MaxNativeAttribs=16; /* r420 */
 323         ctx->Const.VertexProgram.MaxTemps=32;
 324         ctx->Const.VertexProgram.MaxNativeTemps=/*VSF_MAX_FRAGMENT_TEMPS*/32;
 325         ctx->Const.VertexProgram.MaxNativeParameters=256; /* r420 */
 326         ctx->Const.VertexProgram.MaxNativeAddressRegs=1;
 327
 328         ctx->Const.FragmentProgram.MaxNativeTemps = PFS_NUM_TEMP_REGS;
 329         ctx->Const.FragmentProgram.MaxNativeAttribs = 11; /* copy i915... */
 330         ctx->Const.FragmentProgram.MaxNativeParameters = PFS_NUM_CONST_REGS;
 331         ctx->Const.FragmentProgram.MaxNativeAluInstructions = PFS_MAX_ALU_INST;
 332         ctx->Const.FragmentProgram.MaxNativeTexInstructions = PFS_MAX_TEX_INST;
 333         ctx->Const.FragmentProgram.MaxNativeInstructions = PFS_MAX_ALU_INST+PFS_MAX_TEX_INST;
 334         ctx->Const.FragmentProgram.MaxNativeTexIndirections = PFS_MAX_TEX_INDIRECT;
 335         ctx->Const.FragmentProgram.MaxNativeAddressRegs = 0; /* and these are?? */
 336         _tnl_ProgramCacheInit(ctx);
 337         ctx->FragmentProgram._MaintainTexEnvProgram = GL_TRUE;
 338
 339         driInitExtensions(ctx, card_extensions, GL_TRUE);
 340
 341         if (driQueryOptionb(&r300->radeon.optionCache, "disable_stencil_two_side") == 0)
 342                 driInitSingleExtension(ctx, stencil_two_side);
 343
 344         if (r300->radeon.glCtx->Mesa_DXTn && !driQueryOptionb (&r300->radeon.optionCache, "disable_s3tc")) {
 345           _mesa_enable_extension( ctx, "GL_EXT_texture_compression_s3tc" );
 346           _mesa_enable_extension( ctx, "GL_S3_s3tc" );
 347         }
 348         else if (driQueryOptionb (&r300->radeon.optionCache, "force_s3tc_enable")) {
 349           _mesa_enable_extension( ctx, "GL_EXT_texture_compression_s3tc" );
 350         }
 351
 352         r300->disable_lowimpact_fallback = driQueryOptionb(&r300->radeon.optionCache, "disable_lowimpact_fallback");
 353
 354         radeonInitSpanFuncs(ctx);
 355         r300InitCmdBuf(r300);
 356         r300InitState(r300);
 357
 358 #ifdef RADEON_VTXFMT_A
 359         radeon_init_vtxfmt_a(r300);
 360 #endif
 361
 362 #if 0
 363         /* plug in a few more device driver functions */
 364         /* XXX these should really go right after _mesa_init_driver_functions() */
 365         r300InitPixelFuncs(ctx);
 366         r300InitSwtcl(ctx);
 367 #endif
 368         TNL_CONTEXT(ctx)->Driver.RunPipeline = _tnl_run_pipeline;
 369
 370         tcl_mode = driQueryOptioni(&r300->radeon.optionCache, "tcl_mode");
 371         if (driQueryOptionb(&r300->radeon.optionCache, "no_rast")) {
 372                 fprintf(stderr, "disabling 3D acceleration\n");
 373 #if R200_MERGED
 374                 FALLBACK(&r300->radeon, RADEON_FALLBACK_DISABLE, 1);
 375 #endif
 376         }
 377         if (tcl_mode == DRI_CONF_TCL_SW ||
 378             !(r300->radeon.radeonScreen->chip_flags & RADEON_CHIPSET_TCL)) {
 379                 if (r300->radeon.radeonScreen->chip_flags & RADEON_CHIPSET_TCL) {
 380                         r300->radeon.radeonScreen->chip_flags &= ~RADEON_CHIPSET_TCL;
 381                         fprintf(stderr, "Disabling HW TCL support\n");
 382                 }
 383                 TCL_FALLBACK(r300->radeon.glCtx, RADEON_TCL_FALLBACK_TCL_DISABLE, 1);
 384         }
 385
 386         return GL_TRUE;
 387 }
 388
 389 static void r300FreeGartAllocations(r300ContextPtr r300)
 390 {
 391         int i, ret, tries=0, done_age, in_use=0;
 392         drm_radeon_mem_free_t memfree;
 393
 394         memfree.region = RADEON_MEM_REGION_GART;
 395
 396 #ifdef USER_BUFFERS
 397         for (i = r300->rmm->u_last; i > 0; i--) {
 398                 if (r300->rmm->u_list[i].ptr == NULL) {
 399                         continue;
 400                 }
 401
 402                 /* check whether this buffer is still in use */
 403                 if (r300->rmm->u_list[i].pending) {
 404                         in_use++;
 405                 }
 406         }
 407         /* Cannot flush/lock if no context exists. */
 408         if (in_use)
 409                 r300FlushCmdBuf(r300, __FUNCTION__);
 410
 411         done_age = radeonGetAge((radeonContextPtr)r300);
 412
 413         for (i = r300->rmm->u_last; i > 0; i--) {
 414                 if (r300->rmm->u_list[i].ptr == NULL) {
 415                         continue;
 416                 }
 417
 418                 /* check whether this buffer is still in use */
 419                 if (!r300->rmm->u_list[i].pending) {
 420                         continue;
 421                 }
 422
 423                 assert(r300->rmm->u_list[i].h_pending == 0);
 424
 425                 tries = 0;
 426                 while(r300->rmm->u_list[i].age > done_age && tries++ < 1000) {
 427                         usleep(10);
 428                         done_age = radeonGetAge((radeonContextPtr)r300);
 429                 }
 430                 if (tries >= 1000) {
 431                         WARN_ONCE("Failed to idle region!");
 432                 }
 433
 434                 memfree.region_offset = (char *)r300->rmm->u_list[i].ptr -
 435                         (char *)r300->radeon.radeonScreen->gartTextures.map;
 436
 437                 ret = drmCommandWrite(r300->radeon.radeonScreen->driScreen->fd,
 438                                 DRM_RADEON_FREE, &memfree, sizeof(memfree));
 439                 if (ret) {
 440                         fprintf(stderr, "Failed to free at %p\nret = %s\n",
 441                                 r300->rmm->u_list[i].ptr, strerror(-ret));
 442                 } else {
 443                         if (i == r300->rmm->u_last)
 444                                 r300->rmm->u_last--;
 445
 446                         r300->rmm->u_list[i].pending = 0;
 447                         r300->rmm->u_list[i].ptr = NULL;
 448                         if (r300->rmm->u_list[i].fb) {
 449                                 LOCK_HARDWARE(&(r300->radeon));
 450                                 ret = mmFreeMem(r300->rmm->u_list[i].fb);
 451                                 UNLOCK_HARDWARE(&(r300->radeon));
 452                                 if (ret) fprintf(stderr, "failed to free!\n");
 453                                 r300->rmm->u_list[i].fb = NULL;
 454                         }
 455                         r300->rmm->u_list[i].ref_count = 0;
 456                 }
 457         }
 458     r300->rmm->u_head = i;
 459 #endif /* USER_BUFFERS */
 460 }
 461
 462 /* Destroy the device specific context.
 463  */
 464 void r300DestroyContext(__DRIcontextPrivate * driContextPriv)
 465 {
 466         GET_CURRENT_CONTEXT(ctx);
 467         r300ContextPtr r300 = (r300ContextPtr) driContextPriv->driverPrivate;
 468         radeonContextPtr radeon = (radeonContextPtr) r300;
 469         radeonContextPtr current = ctx ? RADEON_CONTEXT(ctx) : NULL;
 470
 471         if (RADEON_DEBUG & DEBUG_DRI) {
 472                 fprintf(stderr, "Destroying context !\n");
 473         }
 474
 475         /* check if we're deleting the currently bound context */
 476         if (&r300->radeon == current) {
 477                 radeonFlush(r300->radeon.glCtx);
 478                 _mesa_make_current(NULL, NULL, NULL);
 479         }
 480
 481         /* Free r300 context resources */
 482         assert(r300);           /* should never be null */
 483
 484         if (r300) {
 485                 GLboolean release_texture_heaps;
 486
 487                 release_texture_heaps = (r300->radeon.glCtx->Shared->RefCount == 1);
 488                 _swsetup_DestroyContext(r300->radeon.glCtx);
 489                 _tnl_ProgramCacheDestroy(r300->radeon.glCtx);
 490                 _tnl_DestroyContext(r300->radeon.glCtx);
 491                 _vbo_DestroyContext(r300->radeon.glCtx);
 492                 _swrast_DestroyContext(r300->radeon.glCtx);
 493
 494                 if (r300->dma.current.buf) {
 495                         r300ReleaseDmaRegion(r300, &r300->dma.current, __FUNCTION__ );
 496 #ifndef USER_BUFFERS
 497                         r300FlushCmdBuf(r300, __FUNCTION__);
 498 #endif
 499                 }
 500                 r300FreeGartAllocations(r300);
 501                 r300DestroyCmdBuf(r300);
 502
 503                 if (radeon->state.scissor.pClipRects) {
 504                         FREE(radeon->state.scissor.pClipRects);
 505                         radeon->state.scissor.pClipRects = NULL;
 506                 }
 507
 508                 if (release_texture_heaps) {
 509                         /* This share group is about to go away, free our private
 510                          * texture object data.
 511                          */
 512                         int i;
 513
 514                         for (i = 0; i < r300->nr_heaps; i++) {
 515                                 driDestroyTextureHeap(r300->texture_heaps[i]);
 516                                 r300->texture_heaps[i] = NULL;
 517                         }
 518
 519                         assert(is_empty_list(&r300->swapped));
 520                 }
 521
 522                 radeonCleanupContext(&r300->radeon);
 523
 524 #ifdef USER_BUFFERS
 525                 /* the memory manager might be accessed when Mesa frees the shared
 526                  * state, so don't destroy it earlier
 527                  */
 528                 radeon_mm_destroy(r300);
 529 #endif
 530
 531                 /* free the option cache */
 532                 driDestroyOptionCache(&r300->radeon.optionCache);
 533
 534                 FREE(r300);
 535         }
 536 }