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 #include "main/texobj.h"
  48
  49 #include "swrast/swrast.h"
  50 #include "swrast_setup/swrast_setup.h"
  51 #include "vbo/vbo.h"
  52
  53 #include "tnl/tnl.h"
  54 #include "tnl/t_pipeline.h"
  55 #include "tnl/t_vp_build.h"
  56
  57 #include "drivers/common/driverfuncs.h"
  58
  59 #include "r300_context.h"
  60 #include "radeon_context.h"
  61 #include "radeon_span.h"
  62 #include "r300_cmdbuf.h"
  63 #include "r300_state.h"
  64 #include "r300_ioctl.h"
  65 #include "r300_tex.h"
  66 #include "r300_emit.h"
  67 #include "r300_swtcl.h"
  68 #include "radeon_bocs_wrapper.h"
  69
  70
  71 #include "vblank.h"
  72 #include "utils.h"
  73 #include "xmlpool.h"            /* for symbolic values of enum-type options */
  74
  75 /* hw_tcl_on derives from future_hw_tcl_on when its safe to change it. */
  76 int future_hw_tcl_on = 1;
  77 int hw_tcl_on = 1;
  78
  79 #define need_GL_VERSION_2_0
  80 #define need_GL_ARB_point_parameters
  81 #define need_GL_ARB_vertex_program
  82 #define need_GL_EXT_blend_equation_separate
  83 #define need_GL_EXT_blend_func_separate
  84 #define need_GL_EXT_blend_minmax
  85 #define need_GL_EXT_framebuffer_object
  86 #define need_GL_EXT_fog_coord
  87 #define need_GL_EXT_gpu_program_parameters
  88 #define need_GL_EXT_secondary_color
  89 #define need_GL_EXT_stencil_two_side
  90 #define need_GL_ATI_separate_stencil
  91 #define need_GL_NV_vertex_program
  92
  93 #include "extension_helper.h"
  94
  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_multitexture",               NULL},
 101   {"GL_ARB_point_parameters",           GL_ARB_point_parameters_functions},
 102   {"GL_ARB_shadow",                     NULL},
 103   {"GL_ARB_shadow_ambient",             NULL},
 104   {"GL_ARB_texture_border_clamp",       NULL},
 105   {"GL_ARB_texture_cube_map",           NULL},
 106   {"GL_ARB_texture_env_add",            NULL},
 107   {"GL_ARB_texture_env_combine",        NULL},
 108   {"GL_ARB_texture_env_crossbar",       NULL},
 109   {"GL_ARB_texture_env_dot3",           NULL},
 110   {"GL_ARB_texture_mirrored_repeat",    NULL},
 111   {"GL_ARB_vertex_program",             GL_ARB_vertex_program_functions},
 112   {"GL_EXT_blend_equation_separate",    GL_EXT_blend_equation_separate_functions},
 113   {"GL_EXT_blend_func_separate",        GL_EXT_blend_func_separate_functions},
 114   {"GL_EXT_blend_minmax",               GL_EXT_blend_minmax_functions},
 115   {"GL_EXT_blend_subtract",             NULL},
 116    { "GL_EXT_framebuffer_object",       GL_EXT_framebuffer_object_functions },
 117   {"GL_EXT_fog_coord",                  GL_EXT_fog_coord_functions },
 118   {"GL_EXT_gpu_program_parameters",     GL_EXT_gpu_program_parameters_functions},
 119   {"GL_EXT_secondary_color",            GL_EXT_secondary_color_functions},
 120   {"GL_EXT_shadow_funcs",               NULL},
 121   {"GL_EXT_stencil_two_side",           GL_EXT_stencil_two_side_functions},
 122   {"GL_EXT_stencil_wrap",               NULL},
 123   {"GL_EXT_texture_edge_clamp",         NULL},
 124   {"GL_EXT_texture_env_combine",        NULL},
 125   {"GL_EXT_texture_env_dot3",           NULL},
 126   {"GL_EXT_texture_filter_anisotropic", NULL},
 127   {"GL_EXT_texture_lod_bias",           NULL},
 128   {"GL_EXT_texture_mirror_clamp",       NULL},
 129   {"GL_EXT_texture_rectangle",          NULL},
 130   {"GL_ATI_separate_stencil",           GL_ATI_separate_stencil_functions},
 131   {"GL_ATI_texture_env_combine3",       NULL},
 132   {"GL_ATI_texture_mirror_once",        NULL},
 133   {"GL_MESA_pack_invert",               NULL},
 134   {"GL_MESA_ycbcr_texture",             NULL},
 135   {"GL_MESAX_texture_float",            NULL},
 136   {"GL_NV_blend_square",                NULL},
 137   {"GL_NV_vertex_program",              GL_NV_vertex_program_functions},
 138   {"GL_SGIS_generate_mipmap",           NULL},
 139   {NULL,                                NULL}
 140   /* *INDENT-ON* */
 141 };
 142
 143
 144 /**
 145  * The GL 2.0 functions are needed to make display lists work with
 146  * functions added by GL_ATI_separate_stencil.
 147  */
 148 const struct dri_extension gl_20_extension[] = {
 149   {"GL_VERSION_2_0",                    GL_VERSION_2_0_functions },
 150 };
 151
 152
 153 extern struct tnl_pipeline_stage _r300_render_stage;
 154 extern const struct tnl_pipeline_stage _r300_tcl_stage;
 155
 156 static const struct tnl_pipeline_stage *r300_pipeline[] = {
 157
 158         /* Try and go straight to t&l
 159          */
 160         &_r300_tcl_stage,
 161
 162         /* Catch any t&l fallbacks
 163          */
 164         &_tnl_vertex_transform_stage,
 165         &_tnl_normal_transform_stage,
 166         &_tnl_lighting_stage,
 167         &_tnl_fog_coordinate_stage,
 168         &_tnl_texgen_stage,
 169         &_tnl_texture_transform_stage,
 170         &_tnl_vertex_program_stage,
 171
 172         /* Try again to go to tcl?
 173          *     - no good for asymmetric-twoside (do with multipass)
 174          *     - no good for asymmetric-unfilled (do with multipass)
 175          *     - good for material
 176          *     - good for texgen
 177          *     - need to manipulate a bit of state
 178          *
 179          * - worth it/not worth it?
 180          */
 181
 182         /* Else do them here.
 183          */
 184         &_r300_render_stage,
 185         &_tnl_render_stage,     /* FALLBACK  */
 186         0,
 187 };
 188
 189 static void r300RunPipeline(GLcontext * ctx)
 190 {
 191     _mesa_lock_context_textures(ctx);
 192
 193     if (ctx->NewState)
 194         _mesa_update_state_locked(ctx);
 195
 196     _tnl_run_pipeline(ctx);
 197     _mesa_unlock_context_textures(ctx);
 198 }
 199
 200 static void r300_get_lock(radeonContextPtr rmesa)
 201 {
 202         drm_radeon_sarea_t *sarea = rmesa->sarea;
 203
 204         if (sarea->ctx_owner != rmesa->dri.hwContext) {
 205                 sarea->ctx_owner = rmesa->dri.hwContext;
 206                 if (!rmesa->radeonScreen->kernel_mm)
 207                         radeon_bo_legacy_texture_age(rmesa->radeonScreen->bom);
 208         }
 209 }
 210
 211 static void r300_vtbl_emit_cs_header(struct radeon_cs *cs, radeonContextPtr rmesa)
 212 {
 213     /* please flush pipe do all pending work */
 214     radeon_cs_write_dword(cs, cmdpacket0(rmesa->radeonScreen,
 215                                   R300_SC_SCREENDOOR, 1));
 216     radeon_cs_write_dword(cs, 0x0);
 217     radeon_cs_write_dword(cs, cmdpacket0(rmesa->radeonScreen,
 218                                   R300_SC_SCREENDOOR, 1));
 219     radeon_cs_write_dword(cs, 0x00FFFFFF);
 220     radeon_cs_write_dword(cs, cmdpacket0(rmesa->radeonScreen,
 221                                   R300_SC_HYPERZ, 1));
 222     radeon_cs_write_dword(cs, 0x0);
 223     radeon_cs_write_dword(cs, cmdpacket0(rmesa->radeonScreen,
 224                                   R300_US_CONFIG, 1));
 225     radeon_cs_write_dword(cs, 0x0);
 226     radeon_cs_write_dword(cs, cmdpacket0(rmesa->radeonScreen,
 227                                   R300_ZB_CNTL, 1));
 228     radeon_cs_write_dword(cs, 0x0);
 229     radeon_cs_write_dword(cs, cmdwait(rmesa->radeonScreen, R300_WAIT_3D));
 230     radeon_cs_write_dword(cs, cmdpacket0(rmesa->radeonScreen,
 231                                   R300_RB3D_DSTCACHE_CTLSTAT, 1));
 232     radeon_cs_write_dword(cs, R300_RB3D_DSTCACHE_CTLSTAT_DC_FLUSH_FLUSH_DIRTY_3D);
 233     radeon_cs_write_dword(cs, cmdpacket0(rmesa->radeonScreen,
 234                                   R300_ZB_ZCACHE_CTLSTAT, 1));
 235     radeon_cs_write_dword(cs, R300_ZB_ZCACHE_CTLSTAT_ZC_FLUSH_FLUSH_AND_FREE);
 236     radeon_cs_write_dword(cs, cmdwait(rmesa->radeonScreen,
 237                                R300_WAIT_3D | R300_WAIT_3D_CLEAN));
 238 }
 239
 240 static void r300_vtbl_pre_emit_atoms(radeonContextPtr radeon)
 241 {
 242         r300ContextPtr r300 = (r300ContextPtr)radeon;
 243         BATCH_LOCALS(radeon);
 244
 245         r300->vap_flush_needed = GL_TRUE;
 246
 247         cp_wait(radeon, R300_WAIT_3D | R300_WAIT_3D_CLEAN);
 248         BEGIN_BATCH_NO_AUTOSTATE(2);
 249         OUT_BATCH_REGVAL(R300_TX_INVALTAGS, R300_TX_FLUSH);
 250         END_BATCH();
 251         end_3d(radeon);
 252 }
 253
 254 static void r300_fallback(GLcontext *ctx, GLuint bit, GLboolean mode)
 255 {
 256         r300ContextPtr r300 = R300_CONTEXT(ctx);
 257         if (mode)
 258                 r300->radeon.Fallback |= bit;
 259         else
 260                 r300->radeon.Fallback &= ~bit;
 261 }
 262
 263 static void r300_init_vtbl(radeonContextPtr radeon)
 264 {
 265         radeon->vtbl.get_lock = r300_get_lock;
 266         radeon->vtbl.update_viewport_offset = r300UpdateViewportOffset;
 267         radeon->vtbl.emit_cs_header = r300_vtbl_emit_cs_header;
 268         radeon->vtbl.swtcl_flush = r300_swtcl_flush;
 269         radeon->vtbl.pre_emit_atoms = r300_vtbl_pre_emit_atoms;
 270         radeon->vtbl.fallback = r300_fallback;
 271 }
 272
 273
 274 /* Create the device specific rendering context.
 275  */
 276 GLboolean r300CreateContext(const __GLcontextModes * glVisual,
 277                             __DRIcontextPrivate * driContextPriv,
 278                             void *sharedContextPrivate)
 279 {
 280         __DRIscreenPrivate *sPriv = driContextPriv->driScreenPriv;
 281         radeonScreenPtr screen = (radeonScreenPtr) (sPriv->private);
 282         struct dd_function_table functions;
 283         r300ContextPtr r300;
 284         GLcontext *ctx;
 285         int tcl_mode;
 286
 287         assert(glVisual);
 288         assert(driContextPriv);
 289         assert(screen);
 290
 291         /* Allocate the R300 context */
 292         r300 = (r300ContextPtr) CALLOC(sizeof(*r300));
 293         if (!r300)
 294                 return GL_FALSE;
 295
 296         if (!(screen->chip_flags & RADEON_CHIPSET_TCL))
 297                 hw_tcl_on = future_hw_tcl_on = 0;
 298
 299         r300_init_vtbl(&r300->radeon);
 300         /* Parse configuration files.
 301          * Do this here so that initialMaxAnisotropy is set before we create
 302          * the default textures.
 303          */
 304         driParseConfigFiles(&r300->radeon.optionCache, &screen->optionCache,
 305                             screen->driScreen->myNum, "r300");
 306         r300->radeon.initialMaxAnisotropy = driQueryOptionf(&r300->radeon.optionCache,
 307                                                      "def_max_anisotropy");
 308
 309         /* Init default driver functions then plug in our R300-specific functions
 310          * (the texture functions are especially important)
 311          */
 312         _mesa_init_driver_functions(&functions);
 313         r300InitIoctlFuncs(&functions);
 314         r300InitStateFuncs(&functions);
 315         r300InitTextureFuncs(&functions);
 316         r300InitShaderFuncs(&functions);
 317
 318         if (!radeonInitContext(&r300->radeon, &functions,
 319                                glVisual, driContextPriv,
 320                                sharedContextPrivate)) {
 321                 FREE(r300);
 322                 return GL_FALSE;
 323         }
 324
 325         /* Init r300 context data */
 326         r300->radeon.texture_depth = driQueryOptioni(&r300->radeon.optionCache,
 327                                               "texture_depth");
 328         if (r300->radeon.texture_depth == DRI_CONF_TEXTURE_DEPTH_FB)
 329                 r300->radeon.texture_depth = (screen->cpp == 4) ?
 330                     DRI_CONF_TEXTURE_DEPTH_32 : DRI_CONF_TEXTURE_DEPTH_16;
 331
 332         /* Set the maximum texture size small enough that we can guarentee that
 333          * all texture units can bind a maximal texture and have them both in
 334          * texturable memory at once.
 335          */
 336
 337         ctx = r300->radeon.glCtx;
 338
 339         ctx->Const.MaxTextureImageUnits =
 340             driQueryOptioni(&r300->radeon.optionCache, "texture_image_units");
 341         ctx->Const.MaxTextureCoordUnits =
 342             driQueryOptioni(&r300->radeon.optionCache, "texture_coord_units");
 343         ctx->Const.MaxTextureUnits =
 344             MIN2(ctx->Const.MaxTextureImageUnits,
 345                  ctx->Const.MaxTextureCoordUnits);
 346         ctx->Const.MaxTextureMaxAnisotropy = 16.0;
 347         ctx->Const.MaxTextureLodBias = 16.0;
 348
 349         if (screen->chip_family >= CHIP_FAMILY_RV515) {
 350             ctx->Const.MaxTextureLevels = 13;
 351             ctx->Const.MaxTextureRectSize = 4096;
 352         }
 353
 354         ctx->Const.MinPointSize = 1.0;
 355         ctx->Const.MinPointSizeAA = 1.0;
 356         ctx->Const.MaxPointSize = R300_POINTSIZE_MAX;
 357         ctx->Const.MaxPointSizeAA = R300_POINTSIZE_MAX;
 358
 359         ctx->Const.MinLineWidth = 1.0;
 360         ctx->Const.MinLineWidthAA = 1.0;
 361         ctx->Const.MaxLineWidth = R300_LINESIZE_MAX;
 362         ctx->Const.MaxLineWidthAA = R300_LINESIZE_MAX;
 363
 364         /* Needs further modifications */
 365 #if 0
 366         ctx->Const.MaxArrayLockSize =
 367             ( /*512 */ RADEON_BUFFER_SIZE * 16 * 1024) / (4 * 4);
 368 #endif
 369
 370         ctx->Const.MaxDrawBuffers = 1;
 371
 372         /* Initialize the software rasterizer and helper modules.
 373          */
 374         _swrast_CreateContext(ctx);
 375         _vbo_CreateContext(ctx);
 376         _tnl_CreateContext(ctx);
 377         _swsetup_CreateContext(ctx);
 378         _swsetup_Wakeup(ctx);
 379         _ae_create_context(ctx);
 380
 381         /* Install the customized pipeline:
 382          */
 383         _tnl_destroy_pipeline(ctx);
 384         _tnl_install_pipeline(ctx, r300_pipeline);
 385
 386         /* Try and keep materials and vertices separate:
 387          */
 388 /*      _tnl_isolate_materials(ctx, GL_TRUE); */
 389
 390         /* Configure swrast and TNL to match hardware characteristics:
 391          */
 392         _swrast_allow_pixel_fog(ctx, GL_FALSE);
 393         _swrast_allow_vertex_fog(ctx, GL_TRUE);
 394         _tnl_allow_pixel_fog(ctx, GL_FALSE);
 395         _tnl_allow_vertex_fog(ctx, GL_TRUE);
 396
 397         /* currently bogus data */
 398         if (screen->chip_flags & RADEON_CHIPSET_TCL) {
 399                 ctx->Const.VertexProgram.MaxInstructions = VSF_MAX_FRAGMENT_LENGTH / 4;
 400                 ctx->Const.VertexProgram.MaxNativeInstructions =
 401                   VSF_MAX_FRAGMENT_LENGTH / 4;
 402                 ctx->Const.VertexProgram.MaxNativeAttribs = 16; /* r420 */
 403                 ctx->Const.VertexProgram.MaxTemps = 32;
 404                 ctx->Const.VertexProgram.MaxNativeTemps =
 405                   /*VSF_MAX_FRAGMENT_TEMPS */ 32;
 406                 ctx->Const.VertexProgram.MaxNativeParameters = 256;     /* r420 */
 407                 ctx->Const.VertexProgram.MaxNativeAddressRegs = 1;
 408         }
 409
 410         ctx->Const.FragmentProgram.MaxNativeTemps = PFS_NUM_TEMP_REGS;
 411         ctx->Const.FragmentProgram.MaxNativeAttribs = 11;       /* copy i915... */
 412         ctx->Const.FragmentProgram.MaxNativeParameters = PFS_NUM_CONST_REGS;
 413         ctx->Const.FragmentProgram.MaxNativeAluInstructions = PFS_MAX_ALU_INST;
 414         ctx->Const.FragmentProgram.MaxNativeTexInstructions = PFS_MAX_TEX_INST;
 415         ctx->Const.FragmentProgram.MaxNativeInstructions =
 416             PFS_MAX_ALU_INST + PFS_MAX_TEX_INST;
 417         ctx->Const.FragmentProgram.MaxNativeTexIndirections =
 418             PFS_MAX_TEX_INDIRECT;
 419         ctx->Const.FragmentProgram.MaxNativeAddressRegs = 0;    /* and these are?? */
 420         ctx->VertexProgram._MaintainTnlProgram = GL_TRUE;
 421         ctx->FragmentProgram._MaintainTexEnvProgram = GL_TRUE;
 422
 423         driInitExtensions(ctx, card_extensions, GL_TRUE);
 424
 425         if (driQueryOptionb
 426             (&r300->radeon.optionCache, "disable_stencil_two_side"))
 427                 _mesa_disable_extension(ctx, "GL_EXT_stencil_two_side");
 428
 429         if (r300->radeon.glCtx->Mesa_DXTn
 430             && !driQueryOptionb(&r300->radeon.optionCache, "disable_s3tc")) {
 431                 _mesa_enable_extension(ctx, "GL_EXT_texture_compression_s3tc");
 432                 _mesa_enable_extension(ctx, "GL_S3_s3tc");
 433         } else
 434             if (driQueryOptionb(&r300->radeon.optionCache, "force_s3tc_enable"))
 435         {
 436                 _mesa_enable_extension(ctx, "GL_EXT_texture_compression_s3tc");
 437         }
 438
 439         r300->disable_lowimpact_fallback =
 440             driQueryOptionb(&r300->radeon.optionCache,
 441                             "disable_lowimpact_fallback");
 442         radeon_fbo_init(&r300->radeon);
 443         radeonInitSpanFuncs( ctx );
 444         r300InitCmdBuf(r300);
 445         r300InitState(r300);
 446         if (!(screen->chip_flags & RADEON_CHIPSET_TCL))
 447                 r300InitSwtcl(ctx);
 448
 449         TNL_CONTEXT(ctx)->Driver.RunPipeline = r300RunPipeline;
 450
 451         tcl_mode = driQueryOptioni(&r300->radeon.optionCache, "tcl_mode");
 452         if (driQueryOptionb(&r300->radeon.optionCache, "no_rast")) {
 453                 fprintf(stderr, "disabling 3D acceleration\n");
 454 #if R200_MERGED
 455                 FALLBACK(&r300->radeon, RADEON_FALLBACK_DISABLE, 1);
 456 #endif
 457         }
 458         if (tcl_mode == DRI_CONF_TCL_SW ||
 459             !(r300->radeon.radeonScreen->chip_flags & RADEON_CHIPSET_TCL)) {
 460                 if (r300->radeon.radeonScreen->chip_flags & RADEON_CHIPSET_TCL) {
 461                         r300->radeon.radeonScreen->chip_flags &=
 462                             ~RADEON_CHIPSET_TCL;
 463                         fprintf(stderr, "Disabling HW TCL support\n");
 464                 }
 465                 TCL_FALLBACK(r300->radeon.glCtx,
 466                              RADEON_TCL_FALLBACK_TCL_DISABLE, 1);
 467         }
 468
 469         return GL_TRUE;
 470 }
 471
 472 /* Destroy the device specific context.
 473  */
 474 void r300DestroyContext(__DRIcontextPrivate * driContextPriv)
 475 {
 476         GET_CURRENT_CONTEXT(ctx);
 477         r300ContextPtr r300 = (r300ContextPtr) driContextPriv->driverPrivate;
 478         radeonContextPtr radeon = (radeonContextPtr) r300;
 479         radeonContextPtr current = ctx ? RADEON_CONTEXT(ctx) : NULL;
 480
 481         if (RADEON_DEBUG & DEBUG_DRI) {
 482                 fprintf(stderr, "Destroying context !\n");
 483         }
 484
 485         /* check if we're deleting the currently bound context */
 486         if (&r300->radeon == current) {
 487                 radeonFlush(r300->radeon.glCtx);
 488                 _mesa_make_current(NULL, NULL, NULL);
 489         }
 490
 491         /* Free r300 context resources */
 492         assert(r300);           /* should never be null */
 493
 494         if (r300) {
 495                 _swsetup_DestroyContext(r300->radeon.glCtx);
 496                 _tnl_DestroyContext(r300->radeon.glCtx);
 497                 _vbo_DestroyContext(r300->radeon.glCtx);
 498                 _swrast_DestroyContext(r300->radeon.glCtx);
 499
 500                 rcommonFlushCmdBuf(&r300->radeon, __FUNCTION__);
 501
 502                 if (radeon->state.scissor.pClipRects) {
 503                         FREE(radeon->state.scissor.pClipRects);
 504                         radeon->state.scissor.pClipRects = NULL;
 505                 }
 506
 507                 r300DestroyCmdBuf(r300);
 508
 509                 radeonCleanupContext(&r300->radeon);
 510
 511
 512                 /* the memory manager might be accessed when Mesa frees the shared
 513                  * state, so don't destroy it earlier
 514                  */
 515
 516
 517                 FREE(r300);
 518         }
 519 }