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 }
 274
 275
 276 /* Create the device specific rendering context.
 277  */
 278 GLboolean r200CreateContext( const __GLcontextModes *glVisual,
 279                              __DRIcontextPrivate *driContextPriv,
 280                              void *sharedContextPrivate)
 281 {
 282    __DRIscreenPrivate *sPriv = driContextPriv->driScreenPriv;
 283    radeonScreenPtr screen = (radeonScreenPtr)(sPriv->private);
 284    struct dd_function_table functions;
 285    r200ContextPtr rmesa;
 286    GLcontext *ctx;
 287    int i;
 288    int tcl_mode;
 289
 290    assert(glVisual);
 291    assert(driContextPriv);
 292    assert(screen);
 293
 294    /* Allocate the R200 context */
 295    rmesa = (r200ContextPtr) CALLOC( sizeof(*rmesa) );
 296    if ( !rmesa )
 297       return GL_FALSE;
 298
 299    r200_init_vtbl(&rmesa->radeon);
 300    /* init exp fog table data */
 301    r200InitStaticFogData();
 302
 303    /* Parse configuration files.
 304     * Do this here so that initialMaxAnisotropy is set before we create
 305     * the default textures.
 306     */
 307    driParseConfigFiles (&rmesa->radeon.optionCache, &screen->optionCache,
 308                         screen->driScreen->myNum, "r200");
 309    rmesa->radeon.initialMaxAnisotropy = driQueryOptionf(&rmesa->radeon.optionCache,
 310                                                         "def_max_anisotropy");
 311
 312    if ( driQueryOptionb( &rmesa->radeon.optionCache, "hyperz" ) ) {
 313       if ( sPriv->drm_version.minor < 13 )
 314          fprintf( stderr, "DRM version 1.%d too old to support HyperZ, "
 315                           "disabling.\n", sPriv->drm_version.minor );
 316       else
 317          rmesa->using_hyperz = GL_TRUE;
 318    }
 319
 320    if ( sPriv->drm_version.minor >= 15 )
 321       rmesa->texmicrotile = GL_TRUE;
 322
 323    /* Init default driver functions then plug in our R200-specific functions
 324     * (the texture functions are especially important)
 325     */
 326    _mesa_init_driver_functions(&functions);
 327    r200InitDriverFuncs(&functions);
 328    r200InitIoctlFuncs(&functions);
 329    r200InitStateFuncs(&functions);
 330    r200InitTextureFuncs(&functions);
 331    r200InitShaderFuncs(&functions);
 332
 333    if (!radeonInitContext(&rmesa->radeon, &functions,
 334                           glVisual, driContextPriv,
 335                           sharedContextPrivate)) {
 336      FREE(rmesa);
 337      return GL_FALSE;
 338    }
 339
 340    rmesa->radeon.swtcl.RenderIndex = ~0;
 341    rmesa->radeon.hw.all_dirty = 1;
 342
 343    /* Set the maximum texture size small enough that we can guarentee that
 344     * all texture units can bind a maximal texture and have all of them in
 345     * texturable memory at once. Depending on the allow_large_textures driconf
 346     * setting allow larger textures.
 347     */
 348
 349    ctx = rmesa->radeon.glCtx;
 350    ctx->Const.MaxTextureUnits = driQueryOptioni (&rmesa->radeon.optionCache,
 351                                                  "texture_units");
 352    ctx->Const.MaxTextureImageUnits = ctx->Const.MaxTextureUnits;
 353    ctx->Const.MaxTextureCoordUnits = ctx->Const.MaxTextureUnits;
 354
 355    i = driQueryOptioni( &rmesa->radeon.optionCache, "allow_large_textures");
 356
 357    ctx->Const.MaxTextureMaxAnisotropy = 16.0;
 358
 359    /* No wide AA points.
 360     */
 361    ctx->Const.MinPointSize = 1.0;
 362    ctx->Const.MinPointSizeAA = 1.0;
 363    ctx->Const.MaxPointSizeAA = 1.0;
 364    ctx->Const.PointSizeGranularity = 0.0625;
 365    if (rmesa->radeon.radeonScreen->drmSupportsPointSprites)
 366       ctx->Const.MaxPointSize = 2047.0;
 367    else
 368       ctx->Const.MaxPointSize = 1.0;
 369
 370    /* mesa initialization problem - _mesa_init_point was already called */
 371    ctx->Point.MaxSize = ctx->Const.MaxPointSize;
 372
 373    ctx->Const.MinLineWidth = 1.0;
 374    ctx->Const.MinLineWidthAA = 1.0;
 375    ctx->Const.MaxLineWidth = 10.0;
 376    ctx->Const.MaxLineWidthAA = 10.0;
 377    ctx->Const.LineWidthGranularity = 0.0625;
 378
 379    ctx->Const.VertexProgram.MaxNativeInstructions = R200_VSF_MAX_INST;
 380    ctx->Const.VertexProgram.MaxNativeAttribs = 12;
 381    ctx->Const.VertexProgram.MaxNativeTemps = R200_VSF_MAX_TEMPS;
 382    ctx->Const.VertexProgram.MaxNativeParameters = R200_VSF_MAX_PARAM;
 383    ctx->Const.VertexProgram.MaxNativeAddressRegs = 1;
 384
 385    ctx->Const.MaxDrawBuffers = 1;
 386
 387    /* Initialize the software rasterizer and helper modules.
 388     */
 389    _swrast_CreateContext( ctx );
 390    _vbo_CreateContext( ctx );
 391    _tnl_CreateContext( ctx );
 392    _swsetup_CreateContext( ctx );
 393    _ae_create_context( ctx );
 394
 395    /* Install the customized pipeline:
 396     */
 397    _tnl_destroy_pipeline( ctx );
 398    _tnl_install_pipeline( ctx, r200_pipeline );
 399
 400    /* Try and keep materials and vertices separate:
 401     */
 402 /*    _tnl_isolate_materials( ctx, GL_TRUE ); */
 403
 404
 405    /* Configure swrast and TNL to match hardware characteristics:
 406     */
 407    _swrast_allow_pixel_fog( ctx, GL_FALSE );
 408    _swrast_allow_vertex_fog( ctx, GL_TRUE );
 409    _tnl_allow_pixel_fog( ctx, GL_FALSE );
 410    _tnl_allow_vertex_fog( ctx, GL_TRUE );
 411
 412
 413    for ( i = 0 ; i < R200_MAX_TEXTURE_UNITS ; i++ ) {
 414       _math_matrix_ctr( &rmesa->TexGenMatrix[i] );
 415       _math_matrix_set_identity( &rmesa->TexGenMatrix[i] );
 416    }
 417    _math_matrix_ctr( &rmesa->tmpmat );
 418    _math_matrix_set_identity( &rmesa->tmpmat );
 419
 420    driInitExtensions( ctx, card_extensions, GL_TRUE );
 421
 422    if (rmesa->radeon.radeonScreen->kernel_mm)
 423      driInitExtensions(ctx, mm_extensions, GL_FALSE);
 424    if (!(rmesa->radeon.radeonScreen->chip_flags & R200_CHIPSET_YCBCR_BROKEN)) {
 425      /* yuv textures don't work with some chips - R200 / rv280 okay so far
 426         others get the bit ordering right but don't actually do YUV-RGB conversion */
 427       _mesa_enable_extension( ctx, "GL_MESA_ycbcr_texture" );
 428    }
 429    if (rmesa->radeon.glCtx->Mesa_DXTn) {
 430       _mesa_enable_extension( ctx, "GL_EXT_texture_compression_s3tc" );
 431       _mesa_enable_extension( ctx, "GL_S3_s3tc" );
 432    }
 433    else if (driQueryOptionb (&rmesa->radeon.optionCache, "force_s3tc_enable")) {
 434       _mesa_enable_extension( ctx, "GL_EXT_texture_compression_s3tc" );
 435    }
 436
 437    if (rmesa->radeon.radeonScreen->drmSupportsCubeMapsR200)
 438       _mesa_enable_extension( ctx, "GL_ARB_texture_cube_map" );
 439    if (rmesa->radeon.radeonScreen->drmSupportsBlendColor) {
 440        driInitExtensions( ctx, blend_extensions, GL_FALSE );
 441    }
 442    if(rmesa->radeon.radeonScreen->drmSupportsVertexProgram)
 443       driInitSingleExtension( ctx, ARB_vp_extension );
 444    if(driQueryOptionb(&rmesa->radeon.optionCache, "nv_vertex_program"))
 445       driInitSingleExtension( ctx, NV_vp_extension );
 446
 447    if ((ctx->Const.MaxTextureUnits == 6) && rmesa->radeon.radeonScreen->drmSupportsFragShader)
 448       driInitSingleExtension( ctx, ATI_fs_extension );
 449    if (rmesa->radeon.radeonScreen->drmSupportsPointSprites)
 450       driInitExtensions( ctx, point_extensions, GL_FALSE );
 451 #if 0
 452    r200InitDriverFuncs( ctx );
 453    r200InitIoctlFuncs( ctx );
 454    r200InitStateFuncs( ctx );
 455    r200InitTextureFuncs( ctx );
 456 #endif
 457    /* plug in a few more device driver functions */
 458    /* XXX these should really go right after _mesa_init_driver_functions() */
 459    radeon_fbo_init(&rmesa->radeon);
 460    radeonInitSpanFuncs( ctx );
 461    r200InitPixelFuncs( ctx );
 462    r200InitTnlFuncs( ctx );
 463    r200InitState( rmesa );
 464    r200InitSwtcl( ctx );
 465
 466    rmesa->prefer_gart_client_texturing =
 467       (getenv("R200_GART_CLIENT_TEXTURES") != 0);
 468
 469 #if DO_DEBUG
 470    R200_DEBUG  = driParseDebugString( getenv( "R200_DEBUG" ),
 471                                       debug_control );
 472    R200_DEBUG |= driParseDebugString( getenv( "RADEON_DEBUG" ),
 473                                       debug_control );
 474 #endif
 475
 476    tcl_mode = driQueryOptioni(&rmesa->radeon.optionCache, "tcl_mode");
 477    if (driQueryOptionb(&rmesa->radeon.optionCache, "no_rast")) {
 478       fprintf(stderr, "disabling 3D acceleration\n");
 479       FALLBACK(rmesa, R200_FALLBACK_DISABLE, 1);
 480    }
 481    else if (tcl_mode == DRI_CONF_TCL_SW || getenv("R200_NO_TCL") ||
 482             !(rmesa->radeon.radeonScreen->chip_flags & RADEON_CHIPSET_TCL)) {
 483       if (rmesa->radeon.radeonScreen->chip_flags & RADEON_CHIPSET_TCL) {
 484          rmesa->radeon.radeonScreen->chip_flags &= ~RADEON_CHIPSET_TCL;
 485          fprintf(stderr, "Disabling HW TCL support\n");
 486       }
 487       TCL_FALLBACK(rmesa->radeon.glCtx, R200_TCL_FALLBACK_TCL_DISABLE, 1);
 488    }
 489
 490    return GL_TRUE;
 491 }
 492
 493