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  * \file
  32  *
  33  * \author Keith Whitwell <keith@tungstengraphics.com>
  34  *
  35  * \author Nicolai Haehnle <prefect_@gmx.net>
  36  */
  37
  38 #include "main/glheader.h"
  39 #include "main/api_arrayelt.h"
  40 #include "main/context.h"
  41 #include "main/simple_list.h"
  42 #include "main/imports.h"
  43 #include "main/matrix.h"
  44 #include "main/extensions.h"
  45 #include "main/state.h"
  46 #include "main/bufferobj.h"
  47
  48 #include "swrast/swrast.h"
  49 #include "swrast_setup/swrast_setup.h"
  50 #include "vbo/vbo.h"
  51
  52 #include "tnl/tnl.h"
  53 #include "tnl/t_pipeline.h"
  54 #include "tnl/t_vp_build.h"
  55
  56 #include "drivers/common/driverfuncs.h"
  57
  58 #include "radeon_ioctl.h"
  59 #include "radeon_span.h"
  60 #include "r300_context.h"
  61 #include "r300_cmdbuf.h"
  62 #include "r300_state.h"
  63 #include "r300_ioctl.h"
  64 #include "r300_tex.h"
  65 #include "r300_emit.h"
  66 #include "r300_swtcl.h"
  67
  68 #ifdef USER_BUFFERS
  69 #include "r300_mem.h"
  70 #endif
  71
  72 #include "vblank.h"
  73 #include "utils.h"
  74 #include "xmlpool.h"            /* for symbolic values of enum-type options */
  75
  76 /* hw_tcl_on derives from future_hw_tcl_on when its safe to change it. */
  77 int future_hw_tcl_on = 1;
  78 int hw_tcl_on = 1;
  79
  80 #define need_GL_EXT_stencil_two_side
  81 #define need_GL_ARB_multisample
  82 #define need_GL_ARB_point_parameters
  83 #define need_GL_ARB_texture_compression
  84 #define need_GL_ARB_vertex_buffer_object
  85 #define need_GL_ARB_vertex_program
  86 #define need_GL_EXT_blend_minmax
  87 //#define need_GL_EXT_fog_coord
  88 #define need_GL_EXT_multi_draw_arrays
  89 #define need_GL_EXT_secondary_color
  90 #define need_GL_EXT_blend_equation_separate
  91 #define need_GL_EXT_blend_func_separate
  92 #define need_GL_EXT_gpu_program_parameters
  93 #define need_GL_NV_vertex_program
  94 #include "extension_helper.h"
  95
  96 const struct dri_extension card_extensions[] = {
  97   /* *INDENT-OFF* */
  98   {"GL_ARB_depth_texture",              NULL},
  99   {"GL_ARB_fragment_program",           NULL},
 100   {"GL_ARB_multisample",                GL_ARB_multisample_functions},
 101   {"GL_ARB_multitexture",               NULL},
 102   {"GL_ARB_point_parameters",           GL_ARB_point_parameters_functions},
 103   {"GL_ARB_shadow",                     NULL},
 104   {"GL_ARB_shadow_ambient",             NULL},
 105   {"GL_ARB_texture_border_clamp",       NULL},
 106   {"GL_ARB_texture_compression",        GL_ARB_texture_compression_functions},
 107   {"GL_ARB_texture_cube_map",           NULL},
 108   {"GL_ARB_texture_env_add",            NULL},
 109   {"GL_ARB_texture_env_combine",        NULL},
 110   {"GL_ARB_texture_env_crossbar",       NULL},
 111   {"GL_ARB_texture_env_dot3",           NULL},
 112   {"GL_ARB_texture_mirrored_repeat",    NULL},
 113   {"GL_ARB_vertex_buffer_object",       GL_ARB_vertex_buffer_object_functions},
 114   {"GL_ARB_vertex_program",             GL_ARB_vertex_program_functions},
 115   {"GL_EXT_blend_equation_separate",    GL_EXT_blend_equation_separate_functions},
 116   {"GL_EXT_blend_func_separate",        GL_EXT_blend_func_separate_functions},
 117   {"GL_EXT_blend_minmax",               GL_EXT_blend_minmax_functions},
 118   {"GL_EXT_blend_subtract",             NULL},
 119 //  {"GL_EXT_fog_coord",                        GL_EXT_fog_coord_functions },
 120   {"GL_EXT_multi_draw_arrays",          GL_EXT_multi_draw_arrays_functions},
 121   {"GL_EXT_gpu_program_parameters",     GL_EXT_gpu_program_parameters_functions},
 122   {"GL_EXT_secondary_color",            GL_EXT_secondary_color_functions},
 123   {"GL_EXT_shadow_funcs",               NULL},
 124   {"GL_EXT_stencil_two_side",           GL_EXT_stencil_two_side_functions},
 125   {"GL_EXT_stencil_wrap",               NULL},
 126   {"GL_EXT_texture_edge_clamp",         NULL},
 127   {"GL_EXT_texture_env_combine",        NULL},
 128   {"GL_EXT_texture_env_dot3",           NULL},
 129   {"GL_EXT_texture_filter_anisotropic", NULL},
 130   {"GL_EXT_texture_lod_bias",           NULL},
 131   {"GL_EXT_texture_mirror_clamp",       NULL},
 132   {"GL_EXT_texture_rectangle",          NULL},
 133   {"GL_ATI_texture_env_combine3",       NULL},
 134   {"GL_ATI_texture_mirror_once",        NULL},
 135   {"GL_MESA_pack_invert",               NULL},
 136   {"GL_MESA_ycbcr_texture",             NULL},
 137   {"GL_MESAX_texture_float",            NULL},
 138   {"GL_NV_blend_square",                NULL},
 139   {"GL_NV_vertex_program",              GL_NV_vertex_program_functions},
 140   {"GL_SGIS_generate_mipmap",           NULL},
 141   {"GL_SGIX_depth_texture",             NULL},
 142   {NULL,                                NULL}
 143   /* *INDENT-ON* */
 144 };
 145
 146 extern struct tnl_pipeline_stage _r300_render_stage;
 147 extern const struct tnl_pipeline_stage _r300_tcl_stage;
 148
 149 static const struct tnl_pipeline_stage *r300_pipeline[] = {
 150
 151         /* Try and go straight to t&l
 152          */
 153         &_r300_tcl_stage,
 154
 155         /* Catch any t&l fallbacks
 156          */
 157         &_tnl_vertex_transform_stage,
 158         &_tnl_normal_transform_stage,
 159         &_tnl_lighting_stage,
 160         &_tnl_fog_coordinate_stage,
 161         &_tnl_texgen_stage,
 162         &_tnl_texture_transform_stage,
 163         &_tnl_vertex_program_stage,
 164
 165         /* Try again to go to tcl?
 166          *     - no good for asymmetric-twoside (do with multipass)
 167          *     - no good for asymmetric-unfilled (do with multipass)
 168          *     - good for material
 169          *     - good for texgen
 170          *     - need to manipulate a bit of state
 171          *
 172          * - worth it/not worth it?
 173          */
 174
 175         /* Else do them here.
 176          */
 177         &_r300_render_stage,
 178         &_tnl_render_stage,     /* FALLBACK  */
 179         0,
 180 };
 181
 182 /* Create the device specific rendering context.
 183  */
 184 GLboolean r300CreateContext(const __GLcontextModes * glVisual,
 185                             __DRIcontextPrivate * driContextPriv,
 186                             void *sharedContextPrivate)
 187 {
 188         __DRIscreenPrivate *sPriv = driContextPriv->driScreenPriv;
 189         radeonScreenPtr screen = (radeonScreenPtr) (sPriv->private);
 190         struct dd_function_table functions;
 191         r300ContextPtr r300;
 192         GLcontext *ctx;
 193         int tcl_mode, i;
 194
 195         assert(glVisual);
 196         assert(driContextPriv);
 197         assert(screen);
 198
 199         /* Allocate the R300 context */
 200         r300 = (r300ContextPtr) CALLOC(sizeof(*r300));
 201         if (!r300)
 202                 return GL_FALSE;
 203
 204         if (!(screen->chip_flags & RADEON_CHIPSET_TCL))
 205                 hw_tcl_on = future_hw_tcl_on = 0;
 206
 207         /* Parse configuration files.
 208          * Do this here so that initialMaxAnisotropy is set before we create
 209          * the default textures.
 210          */
 211         driParseConfigFiles(&r300->radeon.optionCache, &screen->optionCache,
 212                             screen->driScreen->myNum, "r300");
 213         r300->initialMaxAnisotropy = driQueryOptionf(&r300->radeon.optionCache,
 214                                                      "def_max_anisotropy");
 215
 216         /* Init default driver functions then plug in our R300-specific functions
 217          * (the texture functions are especially important)
 218          */
 219         _mesa_init_driver_functions(&functions);
 220         r300InitIoctlFuncs(&functions);
 221         r300InitStateFuncs(&functions);
 222         r300InitTextureFuncs(&functions);
 223         r300InitShaderFuncs(&functions);
 224
 225 #ifdef USER_BUFFERS
 226         r300_mem_init(r300);
 227 #endif
 228
 229         if (!radeonInitContext(&r300->radeon, &functions,
 230                                glVisual, driContextPriv,
 231                                sharedContextPrivate)) {
 232                 FREE(r300);
 233                 return GL_FALSE;
 234         }
 235
 236         /* Init r300 context data */
 237         r300->dma.buf0_address =
 238             r300->radeon.radeonScreen->buffers->list[0].address;
 239
 240         (void)memset(r300->texture_heaps, 0, sizeof(r300->texture_heaps));
 241         make_empty_list(&r300->swapped);
 242
 243         r300->nr_heaps = 1 /* screen->numTexHeaps */ ;
 244         assert(r300->nr_heaps < RADEON_NR_TEX_HEAPS);
 245         for (i = 0; i < r300->nr_heaps; i++) {
 246                 /* *INDENT-OFF* */
 247                 r300->texture_heaps[i] = driCreateTextureHeap(i, r300,
 248                                                                screen->
 249                                                                texSize[i], 12,
 250                                                                RADEON_NR_TEX_REGIONS,
 251                                                                (drmTextureRegionPtr)
 252                                                                r300->radeon.sarea->
 253                                                                tex_list[i],
 254                                                                &r300->radeon.sarea->
 255                                                                tex_age[i],
 256                                                                &r300->swapped,
 257                                                                sizeof
 258                                                                (r300TexObj),
 259                                                                (destroy_texture_object_t
 260                                                                 *)
 261                                                                r300DestroyTexObj);
 262                 /* *INDENT-ON* */
 263         }
 264         r300->texture_depth = driQueryOptioni(&r300->radeon.optionCache,
 265                                               "texture_depth");
 266         if (r300->texture_depth == DRI_CONF_TEXTURE_DEPTH_FB)
 267                 r300->texture_depth = (screen->cpp == 4) ?
 268                     DRI_CONF_TEXTURE_DEPTH_32 : DRI_CONF_TEXTURE_DEPTH_16;
 269
 270         /* Set the maximum texture size small enough that we can guarentee that
 271          * all texture units can bind a maximal texture and have them both in
 272          * texturable memory at once.
 273          */
 274
 275         ctx = r300->radeon.glCtx;
 276
 277         ctx->Const.MaxTextureImageUnits =
 278             driQueryOptioni(&r300->radeon.optionCache, "texture_image_units");
 279         ctx->Const.MaxTextureCoordUnits =
 280             driQueryOptioni(&r300->radeon.optionCache, "texture_coord_units");
 281         ctx->Const.MaxTextureUnits =
 282             MIN2(ctx->Const.MaxTextureImageUnits,
 283                  ctx->Const.MaxTextureCoordUnits);
 284         ctx->Const.MaxTextureMaxAnisotropy = 16.0;
 285         ctx->Const.MaxTextureLodBias = 16.0;
 286
 287         if (screen->chip_family >= CHIP_FAMILY_RV515) {
 288             ctx->Const.MaxTextureLevels = 13;
 289             ctx->Const.MaxTextureRectSize = 4096;
 290         }
 291
 292         ctx->Const.MinPointSize = 1.0;
 293         ctx->Const.MinPointSizeAA = 1.0;
 294         ctx->Const.MaxPointSize = R300_POINTSIZE_MAX;
 295         ctx->Const.MaxPointSizeAA = R300_POINTSIZE_MAX;
 296
 297         ctx->Const.MinLineWidth = 1.0;
 298         ctx->Const.MinLineWidthAA = 1.0;
 299         ctx->Const.MaxLineWidth = R300_LINESIZE_MAX;
 300         ctx->Const.MaxLineWidthAA = R300_LINESIZE_MAX;
 301
 302 #ifdef USER_BUFFERS
 303         /* Needs further modifications */
 304 #if 0
 305         ctx->Const.MaxArrayLockSize =
 306             ( /*512 */ RADEON_BUFFER_SIZE * 16 * 1024) / (4 * 4);
 307 #endif
 308 #endif
 309
 310         /* Initialize the software rasterizer and helper modules.
 311          */
 312         _swrast_CreateContext(ctx);
 313         _vbo_CreateContext(ctx);
 314         _tnl_CreateContext(ctx);
 315         _swsetup_CreateContext(ctx);
 316         _swsetup_Wakeup(ctx);
 317         _ae_create_context(ctx);
 318
 319         /* Install the customized pipeline:
 320          */
 321         _tnl_destroy_pipeline(ctx);
 322         _tnl_install_pipeline(ctx, r300_pipeline);
 323
 324         /* Try and keep materials and vertices separate:
 325          */
 326 /*      _tnl_isolate_materials(ctx, GL_TRUE); */
 327
 328         /* Configure swrast and TNL to match hardware characteristics:
 329          */
 330         _swrast_allow_pixel_fog(ctx, GL_FALSE);
 331         _swrast_allow_vertex_fog(ctx, GL_TRUE);
 332         _tnl_allow_pixel_fog(ctx, GL_FALSE);
 333         _tnl_allow_vertex_fog(ctx, GL_TRUE);
 334
 335         /* currently bogus data */
 336         if (screen->chip_flags & RADEON_CHIPSET_TCL) {
 337                 ctx->Const.VertexProgram.MaxInstructions = VSF_MAX_FRAGMENT_LENGTH / 4;
 338                 ctx->Const.VertexProgram.MaxNativeInstructions =
 339                   VSF_MAX_FRAGMENT_LENGTH / 4;
 340                 ctx->Const.VertexProgram.MaxNativeAttribs = 16; /* r420 */
 341                 ctx->Const.VertexProgram.MaxTemps = 32;
 342                 ctx->Const.VertexProgram.MaxNativeTemps =
 343                   /*VSF_MAX_FRAGMENT_TEMPS */ 32;
 344                 ctx->Const.VertexProgram.MaxNativeParameters = 256;     /* r420 */
 345                 ctx->Const.VertexProgram.MaxNativeAddressRegs = 1;
 346         }
 347
 348         ctx->Const.FragmentProgram.MaxNativeTemps = PFS_NUM_TEMP_REGS;
 349         ctx->Const.FragmentProgram.MaxNativeAttribs = 11;       /* copy i915... */
 350         ctx->Const.FragmentProgram.MaxNativeParameters = PFS_NUM_CONST_REGS;
 351         ctx->Const.FragmentProgram.MaxNativeAluInstructions = PFS_MAX_ALU_INST;
 352         ctx->Const.FragmentProgram.MaxNativeTexInstructions = PFS_MAX_TEX_INST;
 353         ctx->Const.FragmentProgram.MaxNativeInstructions =
 354             PFS_MAX_ALU_INST + PFS_MAX_TEX_INST;
 355         ctx->Const.FragmentProgram.MaxNativeTexIndirections =
 356             PFS_MAX_TEX_INDIRECT;
 357         ctx->Const.FragmentProgram.MaxNativeAddressRegs = 0;    /* and these are?? */
 358         ctx->VertexProgram._MaintainTnlProgram = GL_TRUE;
 359         ctx->FragmentProgram._MaintainTexEnvProgram = GL_TRUE;
 360
 361         driInitExtensions(ctx, card_extensions, GL_TRUE);
 362
 363         if (driQueryOptionb
 364             (&r300->radeon.optionCache, "disable_stencil_two_side"))
 365                 _mesa_disable_extension(ctx, "GL_EXT_stencil_two_side");
 366
 367         if (r300->radeon.glCtx->Mesa_DXTn
 368             && !driQueryOptionb(&r300->radeon.optionCache, "disable_s3tc")) {
 369                 _mesa_enable_extension(ctx, "GL_EXT_texture_compression_s3tc");
 370                 _mesa_enable_extension(ctx, "GL_S3_s3tc");
 371         } else
 372             if (driQueryOptionb(&r300->radeon.optionCache, "force_s3tc_enable"))
 373         {
 374                 _mesa_enable_extension(ctx, "GL_EXT_texture_compression_s3tc");
 375         }
 376
 377         r300->disable_lowimpact_fallback =
 378             driQueryOptionb(&r300->radeon.optionCache,
 379                             "disable_lowimpact_fallback");
 380
 381         radeonInitSpanFuncs(ctx);
 382         r300InitCmdBuf(r300);
 383         r300InitState(r300);
 384         if (!(screen->chip_flags & RADEON_CHIPSET_TCL))
 385                 r300InitSwtcl(ctx);
 386
 387         TNL_CONTEXT(ctx)->Driver.RunPipeline = _tnl_run_pipeline;
 388
 389         tcl_mode = driQueryOptioni(&r300->radeon.optionCache, "tcl_mode");
 390         if (driQueryOptionb(&r300->radeon.optionCache, "no_rast")) {
 391                 fprintf(stderr, "disabling 3D acceleration\n");
 392 #if R200_MERGED
 393                 FALLBACK(&r300->radeon, RADEON_FALLBACK_DISABLE, 1);
 394 #endif
 395         }
 396         if (tcl_mode == DRI_CONF_TCL_SW ||
 397             !(r300->radeon.radeonScreen->chip_flags & RADEON_CHIPSET_TCL)) {
 398                 if (r300->radeon.radeonScreen->chip_flags & RADEON_CHIPSET_TCL) {
 399                         r300->radeon.radeonScreen->chip_flags &=
 400                             ~RADEON_CHIPSET_TCL;
 401                         fprintf(stderr, "Disabling HW TCL support\n");
 402                 }
 403                 TCL_FALLBACK(r300->radeon.glCtx,
 404                              RADEON_TCL_FALLBACK_TCL_DISABLE, 1);
 405         }
 406
 407         return GL_TRUE;
 408 }
 409
 410 static void r300FreeGartAllocations(r300ContextPtr r300)
 411 {
 412         int i, ret, tries = 0, done_age, in_use = 0;
 413         drm_radeon_mem_free_t memfree;
 414
 415         memfree.region = RADEON_MEM_REGION_GART;
 416
 417 #ifdef USER_BUFFERS
 418         for (i = r300->rmm->u_last; i > 0; i--) {
 419                 if (r300->rmm->u_list[i].ptr == NULL) {
 420                         continue;
 421                 }
 422
 423                 /* check whether this buffer is still in use */
 424                 if (r300->rmm->u_list[i].pending) {
 425                         in_use++;
 426                 }
 427         }
 428         /* Cannot flush/lock if no context exists. */
 429         if (in_use)
 430                 r300FlushCmdBuf(r300, __FUNCTION__);
 431
 432         done_age = radeonGetAge((radeonContextPtr) r300);
 433
 434         for (i = r300->rmm->u_last; i > 0; i--) {
 435                 if (r300->rmm->u_list[i].ptr == NULL) {
 436                         continue;
 437                 }
 438
 439                 /* check whether this buffer is still in use */
 440                 if (!r300->rmm->u_list[i].pending) {
 441                         continue;
 442                 }
 443
 444                 assert(r300->rmm->u_list[i].h_pending == 0);
 445
 446                 tries = 0;
 447                 while (r300->rmm->u_list[i].age > done_age && tries++ < 1000) {
 448                         usleep(10);
 449                         done_age = radeonGetAge((radeonContextPtr) r300);
 450                 }
 451                 if (tries >= 1000) {
 452                         WARN_ONCE("Failed to idle region!");
 453                 }
 454
 455                 memfree.region_offset = (char *)r300->rmm->u_list[i].ptr -
 456                     (char *)r300->radeon.radeonScreen->gartTextures.map;
 457
 458                 ret = drmCommandWrite(r300->radeon.radeonScreen->driScreen->fd,
 459                                       DRM_RADEON_FREE, &memfree,
 460                                       sizeof(memfree));
 461                 if (ret) {
 462                         fprintf(stderr, "Failed to free at %p\nret = %s\n",
 463                                 r300->rmm->u_list[i].ptr, strerror(-ret));
 464                 } else {
 465                         if (i == r300->rmm->u_last)
 466                                 r300->rmm->u_last--;
 467
 468                         r300->rmm->u_list[i].pending = 0;
 469                         r300->rmm->u_list[i].ptr = NULL;
 470                 }
 471         }
 472         r300->rmm->u_head = i;
 473 #endif                          /* USER_BUFFERS */
 474 }
 475
 476 /* Destroy the device specific context.
 477  */
 478 void r300DestroyContext(__DRIcontextPrivate * driContextPriv)
 479 {
 480         GET_CURRENT_CONTEXT(ctx);
 481         r300ContextPtr r300 = (r300ContextPtr) driContextPriv->driverPrivate;
 482         radeonContextPtr radeon = (radeonContextPtr) r300;
 483         radeonContextPtr current = ctx ? RADEON_CONTEXT(ctx) : NULL;
 484
 485         if (RADEON_DEBUG & DEBUG_DRI) {
 486                 fprintf(stderr, "Destroying context !\n");
 487         }
 488
 489         /* check if we're deleting the currently bound context */
 490         if (&r300->radeon == current) {
 491                 radeonFlush(r300->radeon.glCtx);
 492                 _mesa_make_current(NULL, NULL, NULL);
 493         }
 494
 495         /* Free r300 context resources */
 496         assert(r300);           /* should never be null */
 497
 498         if (r300) {
 499                 GLboolean release_texture_heaps;
 500
 501                 release_texture_heaps =
 502                     (r300->radeon.glCtx->Shared->RefCount == 1);
 503                 _swsetup_DestroyContext(r300->radeon.glCtx);
 504                 _tnl_DestroyContext(r300->radeon.glCtx);
 505                 _vbo_DestroyContext(r300->radeon.glCtx);
 506                 _swrast_DestroyContext(r300->radeon.glCtx);
 507
 508                 if (r300->dma.current.buf) {
 509                         r300ReleaseDmaRegion(r300, &r300->dma.current,
 510                                              __FUNCTION__);
 511 #ifndef USER_BUFFERS
 512                         r300FlushCmdBuf(r300, __FUNCTION__);
 513 #endif
 514                 }
 515                 r300FreeGartAllocations(r300);
 516                 r300DestroyCmdBuf(r300);
 517
 518                 if (radeon->state.scissor.pClipRects) {
 519                         FREE(radeon->state.scissor.pClipRects);
 520                         radeon->state.scissor.pClipRects = NULL;
 521                 }
 522
 523                 if (release_texture_heaps) {
 524                         /* This share group is about to go away, free our private
 525                          * texture object data.
 526                          */
 527                         int i;
 528
 529                         for (i = 0; i < r300->nr_heaps; i++) {
 530                                 driDestroyTextureHeap(r300->texture_heaps[i]);
 531                                 r300->texture_heaps[i] = NULL;
 532                         }
 533
 534                         assert(is_empty_list(&r300->swapped));
 535                 }
 536
 537                 radeonCleanupContext(&r300->radeon);
 538
 539 #ifdef USER_BUFFERS
 540                 /* the memory manager might be accessed when Mesa frees the shared
 541                  * state, so don't destroy it earlier
 542                  */
 543                 r300_mem_destroy(r300);
 544 #endif
 545
 546                 /* free the option cache */
 547                 driDestroyOptionCache(&r300->radeon.optionCache);
 548
 549                 FREE(r300);
 550         }
 551 }