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/extensions.h"
  41
  42 #include "swrast/swrast.h"
  43 #include "swrast_setup/swrast_setup.h"
  44 #include "vbo/vbo.h"
  45
  46 #include "tnl/tnl.h"
  47 #include "tnl/t_pipeline.h"
  48
  49 #include "drivers/common/driverfuncs.h"
  50
  51 #include "r200_context.h"
  52 #include "r200_ioctl.h"
  53 #include "r200_state.h"
  54 #include "r200_tex.h"
  55 #include "r200_swtcl.h"
  56 #include "r200_tcl.h"
  57 #include "r200_vertprog.h"
  58 #include "radeon_queryobj.h"
  59 #include "r200_blit.h"
  60
  61 #include "radeon_span.h"
  62
  63 #define need_GL_ARB_occlusion_query
  64 #define need_GL_ARB_vertex_program
  65 #define need_GL_ATI_fragment_shader
  66 #define need_GL_EXT_blend_minmax
  67 #define need_GL_EXT_fog_coord
  68 #define need_GL_EXT_secondary_color
  69 #define need_GL_EXT_blend_equation_separate
  70 #define need_GL_EXT_blend_func_separate
  71 #define need_GL_NV_vertex_program
  72 #define need_GL_ARB_point_parameters
  73 #define need_GL_EXT_framebuffer_object
  74 #include "main/remap_helper.h"
  75
  76 #define DRIVER_DATE     "20060602"
  77
  78 #include "utils.h"
  79 #include "xmlpool.h" /* for symbolic values of enum-type options */
  80
  81 /* Return various strings for glGetString().
  82  */
  83 static const GLubyte *r200GetString( GLcontext *ctx, GLenum name )
  84 {
  85    r200ContextPtr rmesa = R200_CONTEXT(ctx);
  86    static char buffer[128];
  87    unsigned   offset;
  88    GLuint agp_mode = (rmesa->radeon.radeonScreen->card_type == RADEON_CARD_PCI)? 0 :
  89       rmesa->radeon.radeonScreen->AGPMode;
  90
  91    switch ( name ) {
  92    case GL_VENDOR:
  93       return (GLubyte *)"Tungsten Graphics, Inc.";
  94
  95    case GL_RENDERER:
  96       offset = driGetRendererString( buffer, "R200", DRIVER_DATE,
  97                                      agp_mode );
  98
  99       sprintf( & buffer[ offset ], " %sTCL",
 100                !(rmesa->radeon.TclFallback & R200_TCL_FALLBACK_TCL_DISABLE)
 101                ? "" : "NO-" );
 102
 103       return (GLubyte *)buffer;
 104
 105    default:
 106       return NULL;
 107    }
 108 }
 109
 110
 111 /* Extension strings exported by the R200 driver.
 112  */
 113 static const struct dri_extension card_extensions[] =
 114 {
 115     { "GL_ARB_multitexture",               NULL },
 116     { "GL_ARB_occlusion_query",            GL_ARB_occlusion_query_functions},
 117     { "GL_ARB_texture_border_clamp",       NULL },
 118     { "GL_ARB_texture_env_add",            NULL },
 119     { "GL_ARB_texture_env_combine",        NULL },
 120     { "GL_ARB_texture_env_dot3",           NULL },
 121     { "GL_ARB_texture_env_crossbar",       NULL },
 122     { "GL_ARB_texture_mirrored_repeat",    NULL },
 123     { "GL_EXT_blend_minmax",               GL_EXT_blend_minmax_functions },
 124     { "GL_EXT_blend_subtract",             NULL },
 125     { "GL_EXT_fog_coord",                  GL_EXT_fog_coord_functions },
 126     { "GL_EXT_packed_depth_stencil",       NULL},
 127     { "GL_EXT_secondary_color",            GL_EXT_secondary_color_functions },
 128     { "GL_EXT_stencil_wrap",               NULL },
 129     { "GL_EXT_texture_edge_clamp",         NULL },
 130     { "GL_EXT_texture_env_combine",        NULL },
 131     { "GL_EXT_texture_env_dot3",           NULL },
 132     { "GL_EXT_texture_filter_anisotropic", NULL },
 133     { "GL_EXT_texture_lod_bias",           NULL },
 134     { "GL_EXT_texture_mirror_clamp",       NULL },
 135     { "GL_EXT_texture_rectangle",          NULL },
 136     { "GL_ATI_texture_env_combine3",       NULL },
 137     { "GL_ATI_texture_mirror_once",        NULL },
 138     { "GL_MESA_pack_invert",               NULL },
 139     { "GL_NV_blend_square",                NULL },
 140     { "GL_SGIS_generate_mipmap",           NULL },
 141     { NULL,                                NULL }
 142 };
 143
 144 static const struct dri_extension blend_extensions[] = {
 145     { "GL_EXT_blend_equation_separate",    GL_EXT_blend_equation_separate_functions },
 146     { "GL_EXT_blend_func_separate",        GL_EXT_blend_func_separate_functions },
 147     { NULL,                                NULL }
 148 };
 149
 150 static const struct dri_extension ARB_vp_extension[] = {
 151     { "GL_ARB_vertex_program",             GL_ARB_vertex_program_functions }
 152 };
 153
 154 static const struct dri_extension NV_vp_extension[] = {
 155     { "GL_NV_vertex_program",              GL_NV_vertex_program_functions }
 156 };
 157
 158 static const struct dri_extension ATI_fs_extension[] = {
 159     { "GL_ATI_fragment_shader",            GL_ATI_fragment_shader_functions }
 160 };
 161
 162 static const struct dri_extension point_extensions[] = {
 163     { "GL_ARB_point_sprite",               NULL },
 164     { "GL_ARB_point_parameters",           GL_ARB_point_parameters_functions },
 165     { NULL,                                NULL }
 166 };
 167
 168 static const struct dri_extension mm_extensions[] = {
 169   { "GL_EXT_framebuffer_object", GL_EXT_framebuffer_object_functions },
 170   { NULL, NULL }
 171 };
 172
 173 extern const struct tnl_pipeline_stage _r200_render_stage;
 174 extern const struct tnl_pipeline_stage _r200_tcl_stage;
 175
 176 static const struct tnl_pipeline_stage *r200_pipeline[] = {
 177
 178    /* Try and go straight to t&l
 179     */
 180    &_r200_tcl_stage,
 181
 182    /* Catch any t&l fallbacks
 183     */
 184    &_tnl_vertex_transform_stage,
 185    &_tnl_normal_transform_stage,
 186    &_tnl_lighting_stage,
 187    &_tnl_fog_coordinate_stage,
 188    &_tnl_texgen_stage,
 189    &_tnl_texture_transform_stage,
 190    &_tnl_point_attenuation_stage,
 191    &_tnl_vertex_program_stage,
 192    /* Try again to go to tcl?
 193     *     - no good for asymmetric-twoside (do with multipass)
 194     *     - no good for asymmetric-unfilled (do with multipass)
 195     *     - good for material
 196     *     - good for texgen
 197     *     - need to manipulate a bit of state
 198     *
 199     * - worth it/not worth it?
 200     */
 201
 202    /* Else do them here.
 203     */
 204 /*    &_r200_render_stage,  */ /* FIXME: bugs with ut2003 */
 205    &_tnl_render_stage,          /* FALLBACK:  */
 206    NULL,
 207 };
 208
 209
 210
 211 /* Initialize the driver's misc functions.
 212  */
 213 static void r200InitDriverFuncs( struct dd_function_table *functions )
 214 {
 215     functions->GetBufferSize            = NULL; /* OBSOLETE */
 216     functions->GetString                = r200GetString;
 217 }
 218
 219
 220 static void r200_get_lock(radeonContextPtr radeon)
 221 {
 222    r200ContextPtr rmesa = (r200ContextPtr)radeon;
 223    drm_radeon_sarea_t *sarea = radeon->sarea;
 224
 225    R200_STATECHANGE( rmesa, ctx );
 226    if (rmesa->radeon.sarea->tiling_enabled) {
 227       rmesa->hw.ctx.cmd[CTX_RB3D_COLORPITCH] |= R200_COLOR_TILE_ENABLE;
 228    }
 229    else rmesa->hw.ctx.cmd[CTX_RB3D_COLORPITCH] &= ~R200_COLOR_TILE_ENABLE;
 230
 231    if ( sarea->ctx_owner != rmesa->radeon.dri.hwContext ) {
 232       sarea->ctx_owner = rmesa->radeon.dri.hwContext;
 233       if (!radeon->radeonScreen->kernel_mm)
 234          radeon_bo_legacy_texture_age(radeon->radeonScreen->bom);
 235    }
 236
 237 }
 238
 239 static void r200_vtbl_emit_cs_header(struct radeon_cs *cs, radeonContextPtr rmesa)
 240 {
 241 }
 242
 243 static void r200_emit_query_finish(radeonContextPtr radeon)
 244 {
 245    BATCH_LOCALS(radeon);
 246    struct radeon_query_object *query = radeon->query.current;
 247
 248    BEGIN_BATCH_NO_AUTOSTATE(4);
 249    OUT_BATCH(CP_PACKET0(RADEON_RB3D_ZPASS_ADDR, 0));
 250    OUT_BATCH_RELOC(0, query->bo, query->curr_offset, 0, RADEON_GEM_DOMAIN_GTT, 0);
 251    END_BATCH();
 252    query->curr_offset += sizeof(uint32_t);
 253    assert(query->curr_offset < RADEON_QUERY_PAGE_SIZE);
 254    query->emitted_begin = GL_FALSE;
 255 }
 256
 257 static void r200_init_vtbl(radeonContextPtr radeon)
 258 {
 259    radeon->vtbl.get_lock = r200_get_lock;
 260    radeon->vtbl.update_viewport_offset = r200UpdateViewportOffset;
 261    radeon->vtbl.emit_cs_header = r200_vtbl_emit_cs_header;
 262    radeon->vtbl.swtcl_flush = r200_swtcl_flush;
 263    radeon->vtbl.fallback = r200Fallback;
 264    radeon->vtbl.update_scissor = r200_vtbl_update_scissor;
 265    radeon->vtbl.emit_query_finish = r200_emit_query_finish;
 266    radeon->vtbl.check_blit = r200_check_blit;
 267    radeon->vtbl.blit = r200_blit;
 268    radeon->vtbl.is_format_renderable = radeonIsFormatRenderable;
 269 }
 270
 271
 272 /* Create the device specific rendering context.
 273  */
 274 GLboolean r200CreateContext( const __GLcontextModes *glVisual,
 275                              __DRIcontext *driContextPriv,
 276                              void *sharedContextPrivate)
 277 {
 278    __DRIscreen *sPriv = driContextPriv->driScreenPriv;
 279    radeonScreenPtr screen = (radeonScreenPtr)(sPriv->private);
 280    struct dd_function_table functions;
 281    r200ContextPtr rmesa;
 282    GLcontext *ctx;
 283    int i;
 284    int tcl_mode;
 285
 286    assert(glVisual);
 287    assert(driContextPriv);
 288    assert(screen);
 289
 290    /* Allocate the R200 context */
 291    rmesa = (r200ContextPtr) CALLOC( sizeof(*rmesa) );
 292    if ( !rmesa )
 293       return GL_FALSE;
 294
 295    rmesa->radeon.radeonScreen = screen;
 296    r200_init_vtbl(&rmesa->radeon);
 297    /* init exp fog table data */
 298    r200InitStaticFogData();
 299
 300    /* Parse configuration files.
 301     * Do this here so that initialMaxAnisotropy is set before we create
 302     * the default textures.
 303     */
 304    driParseConfigFiles (&rmesa->radeon.optionCache, &screen->optionCache,
 305                         screen->driScreen->myNum, "r200");
 306    rmesa->radeon.initialMaxAnisotropy = driQueryOptionf(&rmesa->radeon.optionCache,
 307                                                         "def_max_anisotropy");
 308
 309    if ( sPriv->drm_version.major == 1
 310        && driQueryOptionb( &rmesa->radeon.optionCache, "hyperz" ) ) {
 311       if ( sPriv->drm_version.minor < 13 )
 312          fprintf( stderr, "DRM version 1.%d too old to support HyperZ, "
 313                           "disabling.\n", sPriv->drm_version.minor );
 314       else
 315          rmesa->using_hyperz = GL_TRUE;
 316    }
 317
 318    if ( sPriv->drm_version.minor >= 15 )
 319       rmesa->texmicrotile = GL_TRUE;
 320
 321    /* Init default driver functions then plug in our R200-specific functions
 322     * (the texture functions are especially important)
 323     */
 324    _mesa_init_driver_functions(&functions);
 325    r200InitDriverFuncs(&functions);
 326    r200InitIoctlFuncs(&functions);
 327    r200InitStateFuncs(&rmesa->radeon, &functions);
 328    r200InitTextureFuncs(&rmesa->radeon, &functions);
 329    r200InitShaderFuncs(&functions);
 330    radeonInitQueryObjFunctions(&functions);
 331
 332    if (!radeonInitContext(&rmesa->radeon, &functions,
 333                           glVisual, driContextPriv,
 334                           sharedContextPrivate)) {
 335      FREE(rmesa);
 336      return GL_FALSE;
 337    }
 338
 339    rmesa->radeon.swtcl.RenderIndex = ~0;
 340    rmesa->radeon.hw.all_dirty = 1;
 341
 342    /* Set the maximum texture size small enough that we can guarentee that
 343     * all texture units can bind a maximal texture and have all of them in
 344     * texturable memory at once. Depending on the allow_large_textures driconf
 345     * setting allow larger textures.
 346     */
 347
 348    ctx = rmesa->radeon.glCtx;
 349    ctx->Const.MaxTextureUnits = driQueryOptioni (&rmesa->radeon.optionCache,
 350                                                  "texture_units");
 351    ctx->Const.MaxTextureImageUnits = ctx->Const.MaxTextureUnits;
 352    ctx->Const.MaxTextureCoordUnits = ctx->Const.MaxTextureUnits;
 353
 354    ctx->Const.MaxCombinedTextureImageUnits = ctx->Const.MaxTextureUnits;
 355
 356    i = driQueryOptioni( &rmesa->radeon.optionCache, "allow_large_textures");
 357
 358    /* FIXME: When no memory manager is available we should set this
 359     * to some reasonable value based on texture memory pool size */
 360    ctx->Const.MaxTextureLevels = 12;
 361    ctx->Const.Max3DTextureLevels = 9;
 362    ctx->Const.MaxCubeTextureLevels = 12;
 363    ctx->Const.MaxTextureRectSize = 2048;
 364    ctx->Const.MaxRenderbufferSize = 2048;
 365
 366    ctx->Const.MaxTextureMaxAnisotropy = 16.0;
 367
 368    /* No wide AA points.
 369     */
 370    ctx->Const.MinPointSize = 1.0;
 371    ctx->Const.MinPointSizeAA = 1.0;
 372    ctx->Const.MaxPointSizeAA = 1.0;
 373    ctx->Const.PointSizeGranularity = 0.0625;
 374    if (rmesa->radeon.radeonScreen->drmSupportsPointSprites)
 375       ctx->Const.MaxPointSize = 2047.0;
 376    else
 377       ctx->Const.MaxPointSize = 1.0;
 378
 379    /* mesa initialization problem - _mesa_init_point was already called */
 380    ctx->Point.MaxSize = ctx->Const.MaxPointSize;
 381
 382    ctx->Const.MinLineWidth = 1.0;
 383    ctx->Const.MinLineWidthAA = 1.0;
 384    ctx->Const.MaxLineWidth = 10.0;
 385    ctx->Const.MaxLineWidthAA = 10.0;
 386    ctx->Const.LineWidthGranularity = 0.0625;
 387
 388    ctx->Const.VertexProgram.MaxNativeInstructions = R200_VSF_MAX_INST;
 389    ctx->Const.VertexProgram.MaxNativeAttribs = 12;
 390    ctx->Const.VertexProgram.MaxNativeTemps = R200_VSF_MAX_TEMPS;
 391    ctx->Const.VertexProgram.MaxNativeParameters = R200_VSF_MAX_PARAM;
 392    ctx->Const.VertexProgram.MaxNativeAddressRegs = 1;
 393
 394    ctx->Const.MaxDrawBuffers = 1;
 395    ctx->Const.MaxColorAttachments = 1;
 396
 397    _mesa_set_mvp_with_dp4( ctx, GL_TRUE );
 398
 399    /* Initialize the software rasterizer and helper modules.
 400     */
 401    _swrast_CreateContext( ctx );
 402    _vbo_CreateContext( ctx );
 403    _tnl_CreateContext( ctx );
 404    _swsetup_CreateContext( ctx );
 405    _ae_create_context( ctx );
 406
 407    /* Install the customized pipeline:
 408     */
 409    _tnl_destroy_pipeline( ctx );
 410    _tnl_install_pipeline( ctx, r200_pipeline );
 411
 412    /* Try and keep materials and vertices separate:
 413     */
 414 /*    _tnl_isolate_materials( ctx, GL_TRUE ); */
 415
 416
 417    /* Configure swrast and TNL to match hardware characteristics:
 418     */
 419    _swrast_allow_pixel_fog( ctx, GL_FALSE );
 420    _swrast_allow_vertex_fog( ctx, GL_TRUE );
 421    _tnl_allow_pixel_fog( ctx, GL_FALSE );
 422    _tnl_allow_vertex_fog( ctx, GL_TRUE );
 423
 424
 425    for ( i = 0 ; i < R200_MAX_TEXTURE_UNITS ; i++ ) {
 426       _math_matrix_ctr( &rmesa->TexGenMatrix[i] );
 427       _math_matrix_set_identity( &rmesa->TexGenMatrix[i] );
 428    }
 429    _math_matrix_ctr( &rmesa->tmpmat );
 430    _math_matrix_set_identity( &rmesa->tmpmat );
 431
 432    driInitExtensions( ctx, card_extensions, GL_TRUE );
 433
 434    if (rmesa->radeon.radeonScreen->kernel_mm)
 435      driInitExtensions(ctx, mm_extensions, GL_FALSE);
 436    if (!(rmesa->radeon.radeonScreen->chip_flags & R200_CHIPSET_YCBCR_BROKEN)) {
 437      /* yuv textures don't work with some chips - R200 / rv280 okay so far
 438         others get the bit ordering right but don't actually do YUV-RGB conversion */
 439       _mesa_enable_extension( ctx, "GL_MESA_ycbcr_texture" );
 440    }
 441    if (rmesa->radeon.glCtx->Mesa_DXTn) {
 442       _mesa_enable_extension( ctx, "GL_EXT_texture_compression_s3tc" );
 443       _mesa_enable_extension( ctx, "GL_S3_s3tc" );
 444    }
 445    else if (driQueryOptionb (&rmesa->radeon.optionCache, "force_s3tc_enable")) {
 446       _mesa_enable_extension( ctx, "GL_EXT_texture_compression_s3tc" );
 447    }
 448
 449    if (rmesa->radeon.radeonScreen->drmSupportsCubeMapsR200)
 450       _mesa_enable_extension( ctx, "GL_ARB_texture_cube_map" );
 451    if (rmesa->radeon.radeonScreen->drmSupportsBlendColor) {
 452        driInitExtensions( ctx, blend_extensions, GL_FALSE );
 453    }
 454    if(rmesa->radeon.radeonScreen->drmSupportsVertexProgram)
 455       driInitSingleExtension( ctx, ARB_vp_extension );
 456    if(driQueryOptionb(&rmesa->radeon.optionCache, "nv_vertex_program"))
 457       driInitSingleExtension( ctx, NV_vp_extension );
 458
 459    if ((ctx->Const.MaxTextureUnits == 6) && rmesa->radeon.radeonScreen->drmSupportsFragShader)
 460       driInitSingleExtension( ctx, ATI_fs_extension );
 461    if (rmesa->radeon.radeonScreen->drmSupportsPointSprites)
 462       driInitExtensions( ctx, point_extensions, GL_FALSE );
 463
 464    if (!rmesa->radeon.radeonScreen->kernel_mm)
 465       _mesa_disable_extension(ctx, "GL_ARB_occlusion_query");
 466 #if 0
 467    r200InitDriverFuncs( ctx );
 468    r200InitIoctlFuncs( ctx );
 469    r200InitStateFuncs( ctx );
 470    r200InitTextureFuncs( ctx );
 471 #endif
 472    /* plug in a few more device driver functions */
 473    /* XXX these should really go right after _mesa_init_driver_functions() */
 474    radeon_fbo_init(&rmesa->radeon);
 475    radeonInitSpanFuncs( ctx );
 476    r200InitTnlFuncs( ctx );
 477    r200InitState( rmesa );
 478    r200InitSwtcl( ctx );
 479
 480    rmesa->prefer_gart_client_texturing =
 481       (getenv("R200_GART_CLIENT_TEXTURES") != 0);
 482
 483    tcl_mode = driQueryOptioni(&rmesa->radeon.optionCache, "tcl_mode");
 484    if (driQueryOptionb(&rmesa->radeon.optionCache, "no_rast")) {
 485       fprintf(stderr, "disabling 3D acceleration\n");
 486       FALLBACK(rmesa, R200_FALLBACK_DISABLE, 1);
 487    }
 488    else if (tcl_mode == DRI_CONF_TCL_SW || getenv("R200_NO_TCL") ||
 489             !(rmesa->radeon.radeonScreen->chip_flags & RADEON_CHIPSET_TCL)) {
 490       if (rmesa->radeon.radeonScreen->chip_flags & RADEON_CHIPSET_TCL) {
 491          rmesa->radeon.radeonScreen->chip_flags &= ~RADEON_CHIPSET_TCL;
 492          fprintf(stderr, "Disabling HW TCL support\n");
 493       }
 494       TCL_FALLBACK(rmesa->radeon.glCtx, R200_TCL_FALLBACK_TCL_DISABLE, 1);
 495    }
 496
 497    return GL_TRUE;
 498 }
 499
 500
 501 void r200DestroyContext( __DRIcontext *driContextPriv )
 502 {
 503         int i;
 504         r200ContextPtr rmesa = (r200ContextPtr)driContextPriv->driverPrivate;
 505         if (rmesa)
 506         {
 507                 for ( i = 0 ; i < R200_MAX_TEXTURE_UNITS ; i++ ) {
 508                         _math_matrix_dtr( &rmesa->TexGenMatrix[i] );
 509                 }
 510         }
 511         radeonDestroyContext(driContextPriv);
 512 }