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_pixel.h"
  58 #include "r200_tex.h"
  59 #include "r200_swtcl.h"
  60 #include "r200_tcl.h"
  61 #include "r200_maos.h"
  62 #include "r200_vertprog.h"
  63
  64 #include "radeon_span.h"
  65
  66 #define need_GL_ARB_vertex_program
  67 #define need_GL_ATI_fragment_shader
  68 #define need_GL_EXT_blend_minmax
  69 #define need_GL_EXT_fog_coord
  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 #define need_GL_EXT_framebuffer_object
  76 #include "extension_helper.h"
  77
  78 #define DRIVER_DATE     "20060602"
  79
  80 #include "vblank.h"
  81 #include "utils.h"
  82 #include "xmlpool.h" /* for symbolic values of enum-type options */
  83
  84 /* Return various strings for glGetString().
  85  */
  86 static const GLubyte *r200GetString( GLcontext *ctx, GLenum name )
  87 {
  88    r200ContextPtr rmesa = R200_CONTEXT(ctx);
  89    static char buffer[128];
  90    unsigned   offset;
  91    GLuint agp_mode = (rmesa->radeon.radeonScreen->card_type == RADEON_CARD_PCI)? 0 :
  92       rmesa->radeon.radeonScreen->AGPMode;
  93
  94    switch ( name ) {
  95    case GL_VENDOR:
  96       return (GLubyte *)"Tungsten Graphics, Inc.";
  97
  98    case GL_RENDERER:
  99       offset = driGetRendererString( buffer, "R200", DRIVER_DATE,
 100                                      agp_mode );
 101
 102       sprintf( & buffer[ offset ], " %sTCL",
 103                !(rmesa->radeon.TclFallback & R200_TCL_FALLBACK_TCL_DISABLE)
 104                ? "" : "NO-" );
 105
 106       return (GLubyte *)buffer;
 107
 108    default:
 109       return NULL;
 110    }
 111 }
 112
 113
 114 /* Extension strings exported by the R200 driver.
 115  */
 116 const struct dri_extension card_extensions[] =
 117 {
 118     { "GL_ARB_multitexture",               NULL },
 119     { "GL_ARB_texture_border_clamp",       NULL },
 120     { "GL_ARB_texture_env_add",            NULL },
 121     { "GL_ARB_texture_env_combine",        NULL },
 122     { "GL_ARB_texture_env_dot3",           NULL },
 123     { "GL_ARB_texture_env_crossbar",       NULL },
 124     { "GL_ARB_texture_mirrored_repeat",    NULL },
 125     { "GL_EXT_blend_minmax",               GL_EXT_blend_minmax_functions },
 126     { "GL_EXT_blend_subtract",             NULL },
 127     { "GL_EXT_fog_coord",                  GL_EXT_fog_coord_functions },
 128     { "GL_EXT_packed_depth_stencil",       NULL},
 129     { "GL_EXT_secondary_color",            GL_EXT_secondary_color_functions },
 130     { "GL_EXT_stencil_wrap",               NULL },
 131     { "GL_EXT_texture_edge_clamp",         NULL },
 132     { "GL_EXT_texture_env_combine",        NULL },
 133     { "GL_EXT_texture_env_dot3",           NULL },
 134     { "GL_EXT_texture_filter_anisotropic", NULL },
 135     { "GL_EXT_texture_lod_bias",           NULL },
 136     { "GL_EXT_texture_mirror_clamp",       NULL },
 137     { "GL_EXT_texture_rectangle",          NULL },
 138     { "GL_ATI_texture_env_combine3",       NULL },
 139     { "GL_ATI_texture_mirror_once",        NULL },
 140     { "GL_MESA_pack_invert",               NULL },
 141     { "GL_NV_blend_square",                NULL },
 142     { "GL_SGIS_generate_mipmap",           NULL },
 143     { NULL,                                NULL }
 144 };
 145
 146 const struct dri_extension blend_extensions[] = {
 147     { "GL_EXT_blend_equation_separate",    GL_EXT_blend_equation_separate_functions },
 148     { "GL_EXT_blend_func_separate",        GL_EXT_blend_func_separate_functions },
 149     { NULL,                                NULL }
 150 };
 151
 152 const struct dri_extension ARB_vp_extension[] = {
 153     { "GL_ARB_vertex_program",             GL_ARB_vertex_program_functions }
 154 };
 155
 156 const struct dri_extension NV_vp_extension[] = {
 157     { "GL_NV_vertex_program",              GL_NV_vertex_program_functions }
 158 };
 159
 160 const struct dri_extension ATI_fs_extension[] = {
 161     { "GL_ATI_fragment_shader",            GL_ATI_fragment_shader_functions }
 162 };
 163
 164 const struct dri_extension point_extensions[] = {
 165     { "GL_ARB_point_sprite",               NULL },
 166     { "GL_ARB_point_parameters",           GL_ARB_point_parameters_functions },
 167     { NULL,                                NULL }
 168 };
 169
 170 const struct dri_extension mm_extensions[] = {
 171   { "GL_EXT_framebuffer_object", GL_EXT_framebuffer_object_functions },
 172   { NULL, NULL }
 173 };
 174
 175 extern const struct tnl_pipeline_stage _r200_render_stage;
 176 extern const struct tnl_pipeline_stage _r200_tcl_stage;
 177
 178 static const struct tnl_pipeline_stage *r200_pipeline[] = {
 179
 180    /* Try and go straight to t&l
 181     */
 182    &_r200_tcl_stage,
 183
 184    /* Catch any t&l fallbacks
 185     */
 186    &_tnl_vertex_transform_stage,
 187    &_tnl_normal_transform_stage,
 188    &_tnl_lighting_stage,
 189    &_tnl_fog_coordinate_stage,
 190    &_tnl_texgen_stage,
 191    &_tnl_texture_transform_stage,
 192    &_tnl_point_attenuation_stage,
 193    &_tnl_vertex_program_stage,
 194    /* Try again to go to tcl?
 195     *     - no good for asymmetric-twoside (do with multipass)
 196     *     - no good for asymmetric-unfilled (do with multipass)
 197     *     - good for material
 198     *     - good for texgen
 199     *     - need to manipulate a bit of state
 200     *
 201     * - worth it/not worth it?
 202     */
 203
 204    /* Else do them here.
 205     */
 206 /*    &_r200_render_stage,  */ /* FIXME: bugs with ut2003 */
 207    &_tnl_render_stage,          /* FALLBACK:  */
 208    NULL,
 209 };
 210
 211
 212
 213 /* Initialize the driver's misc functions.
 214  */
 215 static void r200InitDriverFuncs( struct dd_function_table *functions )
 216 {
 217     functions->GetBufferSize            = NULL; /* OBSOLETE */
 218     functions->GetString                = r200GetString;
 219 }
 220
 221 static const struct dri_debug_control debug_control[] =
 222 {
 223     { "fall",  DEBUG_FALLBACKS },
 224     { "tex",   DEBUG_TEXTURE },
 225     { "ioctl", DEBUG_IOCTL },
 226     { "prim",  DEBUG_PRIMS },
 227     { "vert",  DEBUG_VERTS },
 228     { "state", DEBUG_STATE },
 229     { "code",  DEBUG_CODEGEN },
 230     { "vfmt",  DEBUG_VFMT },
 231     { "vtxf",  DEBUG_VFMT },
 232     { "verb",  DEBUG_VERBOSE },
 233     { "dri",   DEBUG_DRI },
 234     { "dma",   DEBUG_DMA },
 235     { "san",   DEBUG_SANITY },
 236     { "sync",  DEBUG_SYNC },
 237     { "pix",   DEBUG_PIXEL },
 238     { "mem",   DEBUG_MEMORY },
 239     { NULL,    0 }
 240 };
 241
 242 static void r200_get_lock(radeonContextPtr radeon)
 243 {
 244    r200ContextPtr rmesa = (r200ContextPtr)radeon;
 245    drm_radeon_sarea_t *sarea = radeon->sarea;
 246
 247    R200_STATECHANGE( rmesa, ctx );
 248    if (rmesa->radeon.sarea->tiling_enabled) {
 249       rmesa->hw.ctx.cmd[CTX_RB3D_COLORPITCH] |= R200_COLOR_TILE_ENABLE;
 250    }
 251    else rmesa->hw.ctx.cmd[CTX_RB3D_COLORPITCH] &= ~R200_COLOR_TILE_ENABLE;
 252
 253    if ( sarea->ctx_owner != rmesa->radeon.dri.hwContext ) {
 254       sarea->ctx_owner = rmesa->radeon.dri.hwContext;
 255       if (!radeon->radeonScreen->kernel_mm)
 256          radeon_bo_legacy_texture_age(radeon->radeonScreen->bom);
 257    }
 258
 259 }
 260
 261 static void r200_vtbl_emit_cs_header(struct radeon_cs *cs, radeonContextPtr rmesa)
 262 {
 263 }
 264
 265
 266 static void r200_init_vtbl(radeonContextPtr radeon)
 267 {
 268    radeon->vtbl.get_lock = r200_get_lock;
 269    radeon->vtbl.update_viewport_offset = r200UpdateViewportOffset;
 270    radeon->vtbl.emit_cs_header = r200_vtbl_emit_cs_header;
 271    radeon->vtbl.swtcl_flush = r200_swtcl_flush;
 272    radeon->vtbl.fallback = r200Fallback;
 273    radeon->vtbl.update_scissor = r200_vtbl_update_scissor;
 274 }
 275
 276
 277 /* Create the device specific rendering context.
 278  */
 279 GLboolean r200CreateContext( const __GLcontextModes *glVisual,
 280                              __DRIcontextPrivate *driContextPriv,
 281                              void *sharedContextPrivate)
 282 {
 283    __DRIscreenPrivate *sPriv = driContextPriv->driScreenPriv;
 284    radeonScreenPtr screen = (radeonScreenPtr)(sPriv->private);
 285    struct dd_function_table functions;
 286    r200ContextPtr rmesa;
 287    GLcontext *ctx;
 288    int i;
 289    int tcl_mode;
 290
 291    assert(glVisual);
 292    assert(driContextPriv);
 293    assert(screen);
 294
 295    /* Allocate the R200 context */
 296    rmesa = (r200ContextPtr) CALLOC( sizeof(*rmesa) );
 297    if ( !rmesa )
 298       return GL_FALSE;
 299
 300    r200_init_vtbl(&rmesa->radeon);
 301    /* init exp fog table data */
 302    r200InitStaticFogData();
 303
 304    /* Parse configuration files.
 305     * Do this here so that initialMaxAnisotropy is set before we create
 306     * the default textures.
 307     */
 308    driParseConfigFiles (&rmesa->radeon.optionCache, &screen->optionCache,
 309                         screen->driScreen->myNum, "r200");
 310    rmesa->radeon.initialMaxAnisotropy = driQueryOptionf(&rmesa->radeon.optionCache,
 311                                                         "def_max_anisotropy");
 312
 313    if ( driQueryOptionb( &rmesa->radeon.optionCache, "hyperz" ) ) {
 314       if ( sPriv->drm_version.minor < 13 )
 315          fprintf( stderr, "DRM version 1.%d too old to support HyperZ, "
 316                           "disabling.\n", sPriv->drm_version.minor );
 317       else
 318          rmesa->using_hyperz = GL_TRUE;
 319    }
 320
 321    if ( sPriv->drm_version.minor >= 15 )
 322       rmesa->texmicrotile = GL_TRUE;
 323
 324    /* Init default driver functions then plug in our R200-specific functions
 325     * (the texture functions are especially important)
 326     */
 327    _mesa_init_driver_functions(&functions);
 328    r200InitDriverFuncs(&functions);
 329    r200InitIoctlFuncs(&functions);
 330    r200InitStateFuncs(&functions);
 331    r200InitTextureFuncs(&functions);
 332    r200InitShaderFuncs(&functions);
 333
 334    if (!radeonInitContext(&rmesa->radeon, &functions,
 335                           glVisual, driContextPriv,
 336                           sharedContextPrivate)) {
 337      FREE(rmesa);
 338      return GL_FALSE;
 339    }
 340
 341    rmesa->radeon.swtcl.RenderIndex = ~0;
 342    rmesa->radeon.hw.all_dirty = 1;
 343
 344    /* Set the maximum texture size small enough that we can guarentee that
 345     * all texture units can bind a maximal texture and have all of them in
 346     * texturable memory at once. Depending on the allow_large_textures driconf
 347     * setting allow larger textures.
 348     */
 349
 350    ctx = rmesa->radeon.glCtx;
 351    ctx->Const.MaxTextureUnits = driQueryOptioni (&rmesa->radeon.optionCache,
 352                                                  "texture_units");
 353    ctx->Const.MaxTextureImageUnits = ctx->Const.MaxTextureUnits;
 354    ctx->Const.MaxTextureCoordUnits = 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
 365    ctx->Const.MaxTextureMaxAnisotropy = 16.0;
 366
 367    /* No wide AA points.
 368     */
 369    ctx->Const.MinPointSize = 1.0;
 370    ctx->Const.MinPointSizeAA = 1.0;
 371    ctx->Const.MaxPointSizeAA = 1.0;
 372    ctx->Const.PointSizeGranularity = 0.0625;
 373    if (rmesa->radeon.radeonScreen->drmSupportsPointSprites)
 374       ctx->Const.MaxPointSize = 2047.0;
 375    else
 376       ctx->Const.MaxPointSize = 1.0;
 377
 378    /* mesa initialization problem - _mesa_init_point was already called */
 379    ctx->Point.MaxSize = ctx->Const.MaxPointSize;
 380
 381    ctx->Const.MinLineWidth = 1.0;
 382    ctx->Const.MinLineWidthAA = 1.0;
 383    ctx->Const.MaxLineWidth = 10.0;
 384    ctx->Const.MaxLineWidthAA = 10.0;
 385    ctx->Const.LineWidthGranularity = 0.0625;
 386
 387    ctx->Const.VertexProgram.MaxNativeInstructions = R200_VSF_MAX_INST;
 388    ctx->Const.VertexProgram.MaxNativeAttribs = 12;
 389    ctx->Const.VertexProgram.MaxNativeTemps = R200_VSF_MAX_TEMPS;
 390    ctx->Const.VertexProgram.MaxNativeParameters = R200_VSF_MAX_PARAM;
 391    ctx->Const.VertexProgram.MaxNativeAddressRegs = 1;
 392
 393    ctx->Const.MaxDrawBuffers = 1;
 394
 395    _mesa_set_mvp_with_dp4( ctx, GL_TRUE );
 396
 397    /* Initialize the software rasterizer and helper modules.
 398     */
 399    _swrast_CreateContext( ctx );
 400    _vbo_CreateContext( ctx );
 401    _tnl_CreateContext( ctx );
 402    _swsetup_CreateContext( ctx );
 403    _ae_create_context( ctx );
 404
 405    /* Install the customized pipeline:
 406     */
 407    _tnl_destroy_pipeline( ctx );
 408    _tnl_install_pipeline( ctx, r200_pipeline );
 409
 410    /* Try and keep materials and vertices separate:
 411     */
 412 /*    _tnl_isolate_materials( ctx, GL_TRUE ); */
 413
 414
 415    /* Configure swrast and TNL to match hardware characteristics:
 416     */
 417    _swrast_allow_pixel_fog( ctx, GL_FALSE );
 418    _swrast_allow_vertex_fog( ctx, GL_TRUE );
 419    _tnl_allow_pixel_fog( ctx, GL_FALSE );
 420    _tnl_allow_vertex_fog( ctx, GL_TRUE );
 421
 422
 423    for ( i = 0 ; i < R200_MAX_TEXTURE_UNITS ; i++ ) {
 424       _math_matrix_ctr( &rmesa->TexGenMatrix[i] );
 425       _math_matrix_set_identity( &rmesa->TexGenMatrix[i] );
 426    }
 427    _math_matrix_ctr( &rmesa->tmpmat );
 428    _math_matrix_set_identity( &rmesa->tmpmat );
 429
 430    driInitExtensions( ctx, card_extensions, GL_TRUE );
 431
 432    if (rmesa->radeon.radeonScreen->kernel_mm)
 433      driInitExtensions(ctx, mm_extensions, GL_FALSE);
 434    if (!(rmesa->radeon.radeonScreen->chip_flags & R200_CHIPSET_YCBCR_BROKEN)) {
 435      /* yuv textures don't work with some chips - R200 / rv280 okay so far
 436         others get the bit ordering right but don't actually do YUV-RGB conversion */
 437       _mesa_enable_extension( ctx, "GL_MESA_ycbcr_texture" );
 438    }
 439    if (rmesa->radeon.glCtx->Mesa_DXTn) {
 440       _mesa_enable_extension( ctx, "GL_EXT_texture_compression_s3tc" );
 441       _mesa_enable_extension( ctx, "GL_S3_s3tc" );
 442    }
 443    else if (driQueryOptionb (&rmesa->radeon.optionCache, "force_s3tc_enable")) {
 444       _mesa_enable_extension( ctx, "GL_EXT_texture_compression_s3tc" );
 445    }
 446
 447    if (rmesa->radeon.radeonScreen->drmSupportsCubeMapsR200)
 448       _mesa_enable_extension( ctx, "GL_ARB_texture_cube_map" );
 449    if (rmesa->radeon.radeonScreen->drmSupportsBlendColor) {
 450        driInitExtensions( ctx, blend_extensions, GL_FALSE );
 451    }
 452    if(rmesa->radeon.radeonScreen->drmSupportsVertexProgram)
 453       driInitSingleExtension( ctx, ARB_vp_extension );
 454    if(driQueryOptionb(&rmesa->radeon.optionCache, "nv_vertex_program"))
 455       driInitSingleExtension( ctx, NV_vp_extension );
 456
 457    if ((ctx->Const.MaxTextureUnits == 6) && rmesa->radeon.radeonScreen->drmSupportsFragShader)
 458       driInitSingleExtension( ctx, ATI_fs_extension );
 459    if (rmesa->radeon.radeonScreen->drmSupportsPointSprites)
 460       driInitExtensions( ctx, point_extensions, GL_FALSE );
 461 #if 0
 462    r200InitDriverFuncs( ctx );
 463    r200InitIoctlFuncs( ctx );
 464    r200InitStateFuncs( ctx );
 465    r200InitTextureFuncs( ctx );
 466 #endif
 467    /* plug in a few more device driver functions */
 468    /* XXX these should really go right after _mesa_init_driver_functions() */
 469    radeon_fbo_init(&rmesa->radeon);
 470    radeonInitSpanFuncs( ctx );
 471    r200InitPixelFuncs( ctx );
 472    r200InitTnlFuncs( ctx );
 473    r200InitState( rmesa );
 474    r200InitSwtcl( ctx );
 475
 476    rmesa->prefer_gart_client_texturing =
 477       (getenv("R200_GART_CLIENT_TEXTURES") != 0);
 478
 479 #if DO_DEBUG
 480    R200_DEBUG  = driParseDebugString( getenv( "R200_DEBUG" ),
 481                                       debug_control );
 482    R200_DEBUG |= driParseDebugString( getenv( "RADEON_DEBUG" ),
 483                                       debug_control );
 484 #endif
 485
 486    tcl_mode = driQueryOptioni(&rmesa->radeon.optionCache, "tcl_mode");
 487    if (driQueryOptionb(&rmesa->radeon.optionCache, "no_rast")) {
 488       fprintf(stderr, "disabling 3D acceleration\n");
 489       FALLBACK(rmesa, R200_FALLBACK_DISABLE, 1);
 490    }
 491    else if (tcl_mode == DRI_CONF_TCL_SW || getenv("R200_NO_TCL") ||
 492             !(rmesa->radeon.radeonScreen->chip_flags & RADEON_CHIPSET_TCL)) {
 493       if (rmesa->radeon.radeonScreen->chip_flags & RADEON_CHIPSET_TCL) {
 494          rmesa->radeon.radeonScreen->chip_flags &= ~RADEON_CHIPSET_TCL;
 495          fprintf(stderr, "Disabling HW TCL support\n");
 496       }
 497       TCL_FALLBACK(rmesa->radeon.glCtx, R200_TCL_FALLBACK_TCL_DISABLE, 1);
 498    }
 499
 500    return GL_TRUE;
 501 }
 502
 503
 504 void r200DestroyContext( __DRIcontextPrivate *driContextPriv )
 505 {
 506         int i;
 507         r200ContextPtr rmesa = (r200ContextPtr)driContextPriv->driverPrivate;
 508         if (rmesa)
 509         {
 510                 for ( i = 0 ; i < R200_MAX_TEXTURE_UNITS ; i++ ) {
 511                         _math_matrix_dtr( &rmesa->TexGenMatrix[i] );
 512                 }
 513         }
 514         radeonDestroyContext(driContextPriv);
 515 }