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_span.h"
  58 #include "r200_pixel.h"
  59 #include "r200_tex.h"
  60 #include "r200_swtcl.h"
  61 #include "r200_tcl.h"
  62 #include "r200_maos.h"
  63 #include "r200_vertprog.h"
  64
  65 #define need_GL_ARB_vertex_program
  66 #define need_GL_ATI_fragment_shader
  67 #define need_GL_EXT_blend_minmax
  68 #define need_GL_EXT_fog_coord
  69 #define need_GL_EXT_multi_draw_arrays
  70 #define need_GL_EXT_secondary_color
  71 #define need_GL_EXT_blend_equation_separate
  72 #define need_GL_EXT_blend_func_separate
  73 #define need_GL_NV_vertex_program
  74 #define need_GL_ARB_point_parameters
  75 #include "extension_helper.h"
  76
  77 #define DRIVER_DATE     "20060602"
  78
  79 #include "vblank.h"
  80 #include "utils.h"
  81 #include "xmlpool.h" /* for symbolic values of enum-type options */
  82 #ifndef R200_DEBUG
  83 int R200_DEBUG = (0);
  84 #endif
  85
  86 /* Return various strings for glGetString().
  87  */
  88 static const GLubyte *r200GetString( GLcontext *ctx, GLenum name )
  89 {
  90    r200ContextPtr rmesa = R200_CONTEXT(ctx);
  91    static char buffer[128];
  92    unsigned   offset;
  93    GLuint agp_mode = (rmesa->r200Screen->card_type == RADEON_CARD_PCI)? 0 :
  94       rmesa->r200Screen->AGPMode;
  95
  96    switch ( name ) {
  97    case GL_VENDOR:
  98       return (GLubyte *)"Tungsten Graphics, Inc.";
  99
 100    case GL_RENDERER:
 101       offset = driGetRendererString( buffer, "R200", DRIVER_DATE,
 102                                      agp_mode );
 103
 104       sprintf( & buffer[ offset ], " %sTCL",
 105                !(rmesa->TclFallback & R200_TCL_FALLBACK_TCL_DISABLE)
 106                ? "" : "NO-" );
 107
 108       return (GLubyte *)buffer;
 109
 110    default:
 111       return NULL;
 112    }
 113 }
 114
 115
 116 /* Extension strings exported by the R200 driver.
 117  */
 118 const struct dri_extension card_extensions[] =
 119 {
 120     { "GL_ARB_multitexture",               NULL },
 121     { "GL_ARB_texture_border_clamp",       NULL },
 122     { "GL_ARB_texture_env_add",            NULL },
 123     { "GL_ARB_texture_env_combine",        NULL },
 124     { "GL_ARB_texture_env_dot3",           NULL },
 125     { "GL_ARB_texture_env_crossbar",       NULL },
 126     { "GL_ARB_texture_mirrored_repeat",    NULL },
 127     { "GL_EXT_blend_minmax",               GL_EXT_blend_minmax_functions },
 128     { "GL_EXT_blend_subtract",             NULL },
 129     { "GL_EXT_fog_coord",                  GL_EXT_fog_coord_functions },
 130     { "GL_EXT_multi_draw_arrays",          GL_EXT_multi_draw_arrays_functions },
 131     { "GL_EXT_secondary_color",            GL_EXT_secondary_color_functions },
 132     { "GL_EXT_stencil_wrap",               NULL },
 133     { "GL_EXT_texture_edge_clamp",         NULL },
 134     { "GL_EXT_texture_env_combine",        NULL },
 135     { "GL_EXT_texture_env_dot3",           NULL },
 136     { "GL_EXT_texture_filter_anisotropic", NULL },
 137     { "GL_EXT_texture_lod_bias",           NULL },
 138     { "GL_EXT_texture_mirror_clamp",       NULL },
 139     { "GL_EXT_texture_rectangle",          NULL },
 140     { "GL_ATI_texture_env_combine3",       NULL },
 141     { "GL_ATI_texture_mirror_once",        NULL },
 142     { "GL_MESA_pack_invert",               NULL },
 143     { "GL_NV_blend_square",                NULL },
 144     { "GL_SGIS_generate_mipmap",           NULL },
 145     { NULL,                                NULL }
 146 };
 147
 148 const struct dri_extension blend_extensions[] = {
 149     { "GL_EXT_blend_equation_separate",    GL_EXT_blend_equation_separate_functions },
 150     { "GL_EXT_blend_func_separate",        GL_EXT_blend_func_separate_functions },
 151     { NULL,                                NULL }
 152 };
 153
 154 const struct dri_extension ARB_vp_extension[] = {
 155     { "GL_ARB_vertex_program",             GL_ARB_vertex_program_functions }
 156 };
 157
 158 const struct dri_extension NV_vp_extension[] = {
 159     { "GL_NV_vertex_program",              GL_NV_vertex_program_functions }
 160 };
 161
 162 const struct dri_extension ATI_fs_extension[] = {
 163     { "GL_ATI_fragment_shader",            GL_ATI_fragment_shader_functions }
 164 };
 165
 166 const struct dri_extension point_extensions[] = {
 167     { "GL_ARB_point_sprite",               NULL },
 168     { "GL_ARB_point_parameters",           GL_ARB_point_parameters_functions },
 169     { NULL,                                NULL }
 170 };
 171
 172 extern const struct tnl_pipeline_stage _r200_render_stage;
 173 extern const struct tnl_pipeline_stage _r200_tcl_stage;
 174
 175 static const struct tnl_pipeline_stage *r200_pipeline[] = {
 176
 177    /* Try and go straight to t&l
 178     */
 179    &_r200_tcl_stage,
 180
 181    /* Catch any t&l fallbacks
 182     */
 183    &_tnl_vertex_transform_stage,
 184    &_tnl_normal_transform_stage,
 185    &_tnl_lighting_stage,
 186    &_tnl_fog_coordinate_stage,
 187    &_tnl_texgen_stage,
 188    &_tnl_texture_transform_stage,
 189    &_tnl_point_attenuation_stage,
 190    &_tnl_vertex_program_stage,
 191    /* Try again to go to tcl?
 192     *     - no good for asymmetric-twoside (do with multipass)
 193     *     - no good for asymmetric-unfilled (do with multipass)
 194     *     - good for material
 195     *     - good for texgen
 196     *     - need to manipulate a bit of state
 197     *
 198     * - worth it/not worth it?
 199     */
 200
 201    /* Else do them here.
 202     */
 203 /*    &_r200_render_stage,  */ /* FIXME: bugs with ut2003 */
 204    &_tnl_render_stage,          /* FALLBACK:  */
 205    NULL,
 206 };
 207
 208
 209
 210 /* Initialize the driver's misc functions.
 211  */
 212 static void r200InitDriverFuncs( struct dd_function_table *functions )
 213 {
 214     functions->GetBufferSize            = NULL; /* OBSOLETE */
 215     functions->GetString                = r200GetString;
 216 }
 217
 218 static const struct dri_debug_control debug_control[] =
 219 {
 220     { "fall",  DEBUG_FALLBACKS },
 221     { "tex",   DEBUG_TEXTURE },
 222     { "ioctl", DEBUG_IOCTL },
 223     { "prim",  DEBUG_PRIMS },
 224     { "vert",  DEBUG_VERTS },
 225     { "state", DEBUG_STATE },
 226     { "code",  DEBUG_CODEGEN },
 227     { "vfmt",  DEBUG_VFMT },
 228     { "vtxf",  DEBUG_VFMT },
 229     { "verb",  DEBUG_VERBOSE },
 230     { "dri",   DEBUG_DRI },
 231     { "dma",   DEBUG_DMA },
 232     { "san",   DEBUG_SANITY },
 233     { "sync",  DEBUG_SYNC },
 234     { "pix",   DEBUG_PIXEL },
 235     { "mem",   DEBUG_MEMORY },
 236     { NULL,    0 }
 237 };
 238
 239
 240 /* Create the device specific rendering context.
 241  */
 242 GLboolean r200CreateContext( const __GLcontextModes *glVisual,
 243                              __DRIcontextPrivate *driContextPriv,
 244                              void *sharedContextPrivate)
 245 {
 246    __DRIscreenPrivate *sPriv = driContextPriv->driScreenPriv;
 247    radeonScreenPtr screen = (radeonScreenPtr)(sPriv->private);
 248    struct dd_function_table functions;
 249    r200ContextPtr rmesa;
 250    GLcontext *ctx, *shareCtx;
 251    int i;
 252    int tcl_mode, fthrottle_mode;
 253
 254    assert(glVisual);
 255    assert(driContextPriv);
 256    assert(screen);
 257
 258    /* Allocate the R200 context */
 259    rmesa = (r200ContextPtr) CALLOC( sizeof(*rmesa) );
 260    if ( !rmesa )
 261       return GL_FALSE;
 262
 263    /* init exp fog table data */
 264    r200InitStaticFogData();
 265
 266    /* Parse configuration files.
 267     * Do this here so that initialMaxAnisotropy is set before we create
 268     * the default textures.
 269     */
 270    driParseConfigFiles (&rmesa->optionCache, &screen->optionCache,
 271                         screen->driScreen->myNum, "r200");
 272    rmesa->initialMaxAnisotropy = driQueryOptionf(&rmesa->optionCache,
 273                                                  "def_max_anisotropy");
 274
 275    if ( driQueryOptionb( &rmesa->optionCache, "hyperz" ) ) {
 276       if ( sPriv->drm_version.minor < 13 )
 277          fprintf( stderr, "DRM version 1.%d too old to support HyperZ, "
 278                           "disabling.\n", sPriv->drm_version.minor );
 279       else
 280          rmesa->using_hyperz = GL_TRUE;
 281    }
 282
 283    if ( sPriv->drm_version.minor >= 15 )
 284       rmesa->texmicrotile = GL_TRUE;
 285
 286    /* Init default driver functions then plug in our R200-specific functions
 287     * (the texture functions are especially important)
 288     */
 289    _mesa_init_driver_functions(&functions);
 290    r200InitDriverFuncs(&functions);
 291    r200InitIoctlFuncs(&functions);
 292    r200InitStateFuncs(&functions);
 293    r200InitTextureFuncs(&functions);
 294    r200InitShaderFuncs(&functions);
 295
 296    /* Allocate and initialize the Mesa context */
 297    if (sharedContextPrivate)
 298       shareCtx = ((r200ContextPtr) sharedContextPrivate)->glCtx;
 299    else
 300       shareCtx = NULL;
 301    rmesa->glCtx = _mesa_create_context(glVisual, shareCtx,
 302                                        &functions, (void *) rmesa);
 303    if (!rmesa->glCtx) {
 304       FREE(rmesa);
 305       return GL_FALSE;
 306    }
 307    driContextPriv->driverPrivate = rmesa;
 308
 309    /* Init r200 context data */
 310    rmesa->dri.context = driContextPriv;
 311    rmesa->dri.screen = sPriv;
 312    rmesa->dri.drawable = NULL; /* Set by XMesaMakeCurrent */
 313    rmesa->dri.hwContext = driContextPriv->hHWContext;
 314    rmesa->dri.hwLock = &sPriv->pSAREA->lock;
 315    rmesa->dri.fd = sPriv->fd;
 316    rmesa->dri.drmMinor = sPriv->drm_version.minor;
 317
 318    rmesa->r200Screen = screen;
 319    rmesa->sarea = (drm_radeon_sarea_t *)((GLubyte *)sPriv->pSAREA +
 320                                        screen->sarea_priv_offset);
 321
 322
 323    rmesa->dma.buf0_address = rmesa->r200Screen->buffers->list[0].address;
 324
 325    (void) memset( rmesa->texture_heaps, 0, sizeof( rmesa->texture_heaps ) );
 326    make_empty_list( & rmesa->swapped );
 327
 328    rmesa->nr_heaps = 1 /* screen->numTexHeaps */ ;
 329    assert(rmesa->nr_heaps < RADEON_NR_TEX_HEAPS);
 330    for ( i = 0 ; i < rmesa->nr_heaps ; i++ ) {
 331       rmesa->texture_heaps[i] = driCreateTextureHeap( i, rmesa,
 332             screen->texSize[i],
 333             12,
 334             RADEON_NR_TEX_REGIONS,
 335             (drmTextureRegionPtr)rmesa->sarea->tex_list[i],
 336             & rmesa->sarea->tex_age[i],
 337             & rmesa->swapped,
 338             sizeof( r200TexObj ),
 339             (destroy_texture_object_t *) r200DestroyTexObj );
 340    }
 341    rmesa->texture_depth = driQueryOptioni (&rmesa->optionCache,
 342                                            "texture_depth");
 343    if (rmesa->texture_depth == DRI_CONF_TEXTURE_DEPTH_FB)
 344       rmesa->texture_depth = ( screen->cpp == 4 ) ?
 345          DRI_CONF_TEXTURE_DEPTH_32 : DRI_CONF_TEXTURE_DEPTH_16;
 346
 347    rmesa->swtcl.RenderIndex = ~0;
 348    rmesa->hw.all_dirty = 1;
 349
 350    /* Set the maximum texture size small enough that we can guarentee that
 351     * all texture units can bind a maximal texture and have all of them in
 352     * texturable memory at once. Depending on the allow_large_textures driconf
 353     * setting allow larger textures.
 354     */
 355
 356    ctx = rmesa->glCtx;
 357    ctx->Const.MaxTextureUnits = driQueryOptioni (&rmesa->optionCache,
 358                                                  "texture_units");
 359    ctx->Const.MaxTextureImageUnits = ctx->Const.MaxTextureUnits;
 360    ctx->Const.MaxTextureCoordUnits = ctx->Const.MaxTextureUnits;
 361
 362    i = driQueryOptioni( &rmesa->optionCache, "allow_large_textures");
 363
 364    driCalculateMaxTextureLevels( rmesa->texture_heaps,
 365                                  rmesa->nr_heaps,
 366                                  & ctx->Const,
 367                                  4,
 368                                  11, /* max 2D texture size is 2048x2048 */
 369 #if ENABLE_HW_3D_TEXTURE
 370                                  8,  /* max 3D texture size is 256^3 */
 371 #else
 372                                  0,  /* 3D textures unsupported */
 373 #endif
 374                                  11, /* max cube texture size is 2048x2048 */
 375                                  11, /* max texture rectangle size is 2048x2048 */
 376                                  12,
 377                                  GL_FALSE,
 378                                  i );
 379
 380    ctx->Const.MaxTextureMaxAnisotropy = 16.0;
 381
 382    /* No wide AA points.
 383     */
 384    ctx->Const.MinPointSize = 1.0;
 385    ctx->Const.MinPointSizeAA = 1.0;
 386    ctx->Const.MaxPointSizeAA = 1.0;
 387    ctx->Const.PointSizeGranularity = 0.0625;
 388    if (rmesa->r200Screen->drmSupportsPointSprites)
 389       ctx->Const.MaxPointSize = 2047.0;
 390    else
 391       ctx->Const.MaxPointSize = 1.0;
 392
 393    /* mesa initialization problem - _mesa_init_point was already called */
 394    ctx->Point.MaxSize = ctx->Const.MaxPointSize;
 395
 396    ctx->Const.MinLineWidth = 1.0;
 397    ctx->Const.MinLineWidthAA = 1.0;
 398    ctx->Const.MaxLineWidth = 10.0;
 399    ctx->Const.MaxLineWidthAA = 10.0;
 400    ctx->Const.LineWidthGranularity = 0.0625;
 401
 402    ctx->Const.VertexProgram.MaxNativeInstructions = R200_VSF_MAX_INST;
 403    ctx->Const.VertexProgram.MaxNativeAttribs = 12;
 404    ctx->Const.VertexProgram.MaxNativeTemps = R200_VSF_MAX_TEMPS;
 405    ctx->Const.VertexProgram.MaxNativeParameters = R200_VSF_MAX_PARAM;
 406    ctx->Const.VertexProgram.MaxNativeAddressRegs = 1;
 407
 408    /* Initialize the software rasterizer and helper modules.
 409     */
 410    _swrast_CreateContext( ctx );
 411    _vbo_CreateContext( ctx );
 412    _tnl_CreateContext( ctx );
 413    _swsetup_CreateContext( ctx );
 414    _ae_create_context( ctx );
 415
 416    /* Install the customized pipeline:
 417     */
 418    _tnl_destroy_pipeline( ctx );
 419    _tnl_install_pipeline( ctx, r200_pipeline );
 420
 421    /* Try and keep materials and vertices separate:
 422     */
 423 /*    _tnl_isolate_materials( ctx, GL_TRUE ); */
 424
 425
 426    /* Configure swrast and TNL to match hardware characteristics:
 427     */
 428    _swrast_allow_pixel_fog( ctx, GL_FALSE );
 429    _swrast_allow_vertex_fog( ctx, GL_TRUE );
 430    _tnl_allow_pixel_fog( ctx, GL_FALSE );
 431    _tnl_allow_vertex_fog( ctx, GL_TRUE );
 432
 433
 434    for ( i = 0 ; i < R200_MAX_TEXTURE_UNITS ; i++ ) {
 435       _math_matrix_ctr( &rmesa->TexGenMatrix[i] );
 436       _math_matrix_set_identity( &rmesa->TexGenMatrix[i] );
 437    }
 438    _math_matrix_ctr( &rmesa->tmpmat );
 439    _math_matrix_set_identity( &rmesa->tmpmat );
 440
 441    driInitExtensions( ctx, card_extensions, GL_TRUE );
 442    if (!(rmesa->r200Screen->chip_flags & R200_CHIPSET_YCBCR_BROKEN)) {
 443      /* yuv textures don't work with some chips - R200 / rv280 okay so far
 444         others get the bit ordering right but don't actually do YUV-RGB conversion */
 445       _mesa_enable_extension( ctx, "GL_MESA_ycbcr_texture" );
 446    }
 447    if (rmesa->glCtx->Mesa_DXTn) {
 448       _mesa_enable_extension( ctx, "GL_EXT_texture_compression_s3tc" );
 449       _mesa_enable_extension( ctx, "GL_S3_s3tc" );
 450    }
 451    else if (driQueryOptionb (&rmesa->optionCache, "force_s3tc_enable")) {
 452       _mesa_enable_extension( ctx, "GL_EXT_texture_compression_s3tc" );
 453    }
 454
 455    if (rmesa->r200Screen->drmSupportsCubeMapsR200)
 456       _mesa_enable_extension( ctx, "GL_ARB_texture_cube_map" );
 457    if (rmesa->r200Screen->drmSupportsBlendColor) {
 458        driInitExtensions( ctx, blend_extensions, GL_FALSE );
 459    }
 460    if(rmesa->r200Screen->drmSupportsVertexProgram)
 461       driInitSingleExtension( ctx, ARB_vp_extension );
 462    if(driQueryOptionb(&rmesa->optionCache, "nv_vertex_program"))
 463       driInitSingleExtension( ctx, NV_vp_extension );
 464
 465    if ((ctx->Const.MaxTextureUnits == 6) && rmesa->r200Screen->drmSupportsFragShader)
 466       driInitSingleExtension( ctx, ATI_fs_extension );
 467    if (rmesa->r200Screen->drmSupportsPointSprites)
 468       driInitExtensions( ctx, point_extensions, GL_FALSE );
 469 #if 0
 470    r200InitDriverFuncs( ctx );
 471    r200InitIoctlFuncs( ctx );
 472    r200InitStateFuncs( ctx );
 473    r200InitTextureFuncs( ctx );
 474 #endif
 475    /* plug in a few more device driver functions */
 476    /* XXX these should really go right after _mesa_init_driver_functions() */
 477    r200InitPixelFuncs( ctx );
 478    r200InitSpanFuncs( ctx );
 479    r200InitTnlFuncs( ctx );
 480    r200InitState( rmesa );
 481    r200InitSwtcl( ctx );
 482
 483    fthrottle_mode = driQueryOptioni(&rmesa->optionCache, "fthrottle_mode");
 484    rmesa->iw.irq_seq = -1;
 485    rmesa->irqsEmitted = 0;
 486    rmesa->do_irqs = (fthrottle_mode == DRI_CONF_FTHROTTLE_IRQS &&
 487                      rmesa->r200Screen->irq);
 488
 489    rmesa->do_usleeps = (fthrottle_mode == DRI_CONF_FTHROTTLE_USLEEPS);
 490
 491    if (!rmesa->do_irqs)
 492       fprintf(stderr,
 493               "IRQ's not enabled, falling back to %s: %d %d\n",
 494               rmesa->do_usleeps ? "usleeps" : "busy waits",
 495               fthrottle_mode,
 496               rmesa->r200Screen->irq);
 497
 498    rmesa->prefer_gart_client_texturing =
 499       (getenv("R200_GART_CLIENT_TEXTURES") != 0);
 500
 501    (*sPriv->systemTime->getUST)( & rmesa->swap_ust );
 502
 503
 504 #if DO_DEBUG
 505    R200_DEBUG  = driParseDebugString( getenv( "R200_DEBUG" ),
 506                                       debug_control );
 507    R200_DEBUG |= driParseDebugString( getenv( "RADEON_DEBUG" ),
 508                                       debug_control );
 509 #endif
 510
 511    tcl_mode = driQueryOptioni(&rmesa->optionCache, "tcl_mode");
 512    if (driQueryOptionb(&rmesa->optionCache, "no_rast")) {
 513       fprintf(stderr, "disabling 3D acceleration\n");
 514       FALLBACK(rmesa, R200_FALLBACK_DISABLE, 1);
 515    }
 516    else if (tcl_mode == DRI_CONF_TCL_SW || getenv("R200_NO_TCL") ||
 517             !(rmesa->r200Screen->chip_flags & RADEON_CHIPSET_TCL)) {
 518       if (rmesa->r200Screen->chip_flags & RADEON_CHIPSET_TCL) {
 519          rmesa->r200Screen->chip_flags &= ~RADEON_CHIPSET_TCL;
 520          fprintf(stderr, "Disabling HW TCL support\n");
 521       }
 522       TCL_FALLBACK(rmesa->glCtx, R200_TCL_FALLBACK_TCL_DISABLE, 1);
 523    }
 524
 525    return GL_TRUE;
 526 }
 527
 528
 529 /* Destroy the device specific context.
 530  */
 531 /* Destroy the Mesa and driver specific context data.
 532  */
 533 void r200DestroyContext( __DRIcontextPrivate *driContextPriv )
 534 {
 535    GET_CURRENT_CONTEXT(ctx);
 536    r200ContextPtr rmesa = (r200ContextPtr) driContextPriv->driverPrivate;
 537    r200ContextPtr current = ctx ? R200_CONTEXT(ctx) : NULL;
 538
 539    /* check if we're deleting the currently bound context */
 540    if (rmesa == current) {
 541       R200_FIREVERTICES( rmesa );
 542       _mesa_make_current(NULL, NULL, NULL);
 543    }
 544
 545    /* Free r200 context resources */
 546    assert(rmesa); /* should never be null */
 547    if ( rmesa ) {
 548       GLboolean   release_texture_heaps;
 549
 550
 551       release_texture_heaps = (rmesa->glCtx->Shared->RefCount == 1);
 552       _swsetup_DestroyContext( rmesa->glCtx );
 553       _tnl_DestroyContext( rmesa->glCtx );
 554       _vbo_DestroyContext( rmesa->glCtx );
 555       _swrast_DestroyContext( rmesa->glCtx );
 556
 557       r200DestroySwtcl( rmesa->glCtx );
 558       r200ReleaseArrays( rmesa->glCtx, ~0 );
 559
 560       if (rmesa->dma.current.buf) {
 561          r200ReleaseDmaRegion( rmesa, &rmesa->dma.current, __FUNCTION__ );
 562          r200FlushCmdBuf( rmesa, __FUNCTION__ );
 563       }
 564
 565       if (rmesa->state.scissor.pClipRects) {
 566          FREE(rmesa->state.scissor.pClipRects);
 567          rmesa->state.scissor.pClipRects = NULL;
 568       }
 569
 570       if ( release_texture_heaps ) {
 571          /* This share group is about to go away, free our private
 572           * texture object data.
 573           */
 574          int i;
 575
 576          for ( i = 0 ; i < rmesa->nr_heaps ; i++ ) {
 577             driDestroyTextureHeap( rmesa->texture_heaps[ i ] );
 578             rmesa->texture_heaps[ i ] = NULL;
 579          }
 580
 581          assert( is_empty_list( & rmesa->swapped ) );
 582       }
 583
 584       /* free the Mesa context */
 585       rmesa->glCtx->DriverCtx = NULL;
 586       _mesa_destroy_context( rmesa->glCtx );
 587
 588       /* free the option cache */
 589       driDestroyOptionCache (&rmesa->optionCache);
 590
 591       FREE( rmesa );
 592    }
 593 }
 594
 595
 596
 597
 598 void
 599 r200SwapBuffers( __DRIdrawablePrivate *dPriv )
 600 {
 601    if (dPriv->driContextPriv && dPriv->driContextPriv->driverPrivate) {
 602       r200ContextPtr rmesa;
 603       GLcontext *ctx;
 604       rmesa = (r200ContextPtr) dPriv->driContextPriv->driverPrivate;
 605       ctx = rmesa->glCtx;
 606       if (ctx->Visual.doubleBufferMode) {
 607          _mesa_notifySwapBuffers( ctx );  /* flush pending rendering comands */
 608          if ( rmesa->doPageFlip ) {
 609             r200PageFlip( dPriv );
 610          }
 611          else {
 612              r200CopyBuffer( dPriv, NULL );
 613          }
 614       }
 615    }
 616    else {
 617       /* XXX this shouldn't be an error but we can't handle it for now */
 618       _mesa_problem(NULL, "%s: drawable has no context!", __FUNCTION__);
 619    }
 620 }
 621
 622 void
 623 r200CopySubBuffer( __DRIdrawablePrivate *dPriv,
 624                    int x, int y, int w, int h )
 625 {
 626    if (dPriv->driContextPriv && dPriv->driContextPriv->driverPrivate) {
 627       r200ContextPtr rmesa;
 628       GLcontext *ctx;
 629       rmesa = (r200ContextPtr) dPriv->driContextPriv->driverPrivate;
 630       ctx = rmesa->glCtx;
 631       if (ctx->Visual.doubleBufferMode) {
 632          drm_clip_rect_t rect;
 633          rect.x1 = x + dPriv->x;
 634          rect.y1 = (dPriv->h - y - h) + dPriv->y;
 635          rect.x2 = rect.x1 + w;
 636          rect.y2 = rect.y1 + h;
 637          _mesa_notifySwapBuffers( ctx );  /* flush pending rendering comands */
 638          r200CopyBuffer( dPriv, &rect );
 639       }
 640    }
 641    else {
 642       /* XXX this shouldn't be an error but we can't handle it for now */
 643       _mesa_problem(NULL, "%s: drawable has no context!", __FUNCTION__);
 644    }
 645 }
 646
 647 /* Force the context `c' to be the current context and associate with it
 648  * buffer `b'.
 649  */
 650 GLboolean
 651 r200MakeCurrent( __DRIcontextPrivate *driContextPriv,
 652                    __DRIdrawablePrivate *driDrawPriv,
 653                    __DRIdrawablePrivate *driReadPriv )
 654 {
 655    if ( driContextPriv ) {
 656       r200ContextPtr newCtx =
 657          (r200ContextPtr) driContextPriv->driverPrivate;
 658
 659       if (R200_DEBUG & DEBUG_DRI)
 660          fprintf(stderr, "%s ctx %p\n", __FUNCTION__, (void *)newCtx->glCtx);
 661
 662       newCtx->dri.readable = driReadPriv;
 663
 664       if ( newCtx->dri.drawable != driDrawPriv ||
 665            newCtx->lastStamp != driDrawPriv->lastStamp ) {
 666          if (driDrawPriv->swap_interval == (unsigned)-1) {
 667             driDrawPriv->vblFlags = (newCtx->r200Screen->irq != 0)
 668                ? driGetDefaultVBlankFlags(&newCtx->optionCache)
 669                : VBLANK_FLAG_NO_IRQ;
 670
 671             driDrawableInitVBlank( driDrawPriv );
 672          }
 673
 674          newCtx->dri.drawable = driDrawPriv;
 675
 676          r200SetCliprects(newCtx);
 677          r200UpdateViewportOffset( newCtx->glCtx );
 678       }
 679
 680       _mesa_make_current( newCtx->glCtx,
 681                           (GLframebuffer *) driDrawPriv->driverPrivate,
 682                           (GLframebuffer *) driReadPriv->driverPrivate );
 683
 684       _mesa_update_state( newCtx->glCtx );
 685       r200ValidateState( newCtx->glCtx );
 686
 687    } else {
 688       if (R200_DEBUG & DEBUG_DRI)
 689          fprintf(stderr, "%s ctx is null\n", __FUNCTION__);
 690       _mesa_make_current( NULL, NULL, NULL );
 691    }
 692
 693    if (R200_DEBUG & DEBUG_DRI)
 694       fprintf(stderr, "End %s\n", __FUNCTION__);
 695    return GL_TRUE;
 696 }
 697
 698 /* Force the context `c' to be unbound from its buffer.
 699  */
 700 GLboolean
 701 r200UnbindContext( __DRIcontextPrivate *driContextPriv )
 702 {
 703    r200ContextPtr rmesa = (r200ContextPtr) driContextPriv->driverPrivate;
 704
 705    if (R200_DEBUG & DEBUG_DRI)
 706       fprintf(stderr, "%s ctx %p\n", __FUNCTION__, (void *)rmesa->glCtx);
 707
 708    return GL_TRUE;
 709 }