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
  48 #include "swrast/swrast.h"
  49 #include "swrast_setup/swrast_setup.h"
  50 #include "vbo/vbo.h"
  51
  52 #include "tnl/tnl.h"
  53 #include "tnl/t_pipeline.h"
  54 #include "tnl/t_vp_build.h"
  55
  56 #include "drivers/common/driverfuncs.h"
  57
  58 #include "radeon_ioctl.h"
  59 #include "radeon_span.h"
  60 #include "r300_context.h"
  61 #include "r300_cmdbuf.h"
  62 #include "r300_state.h"
  63 #include "r300_ioctl.h"
  64 #include "r300_tex.h"
  65 #include "r300_emit.h"
  66 #include "r300_swtcl.h"
  67 #include "radeon_bo_legacy.h"
  68
  69
  70 #include "vblank.h"
  71 #include "utils.h"
  72 #include "xmlpool.h"            /* for symbolic values of enum-type options */
  73
  74 /* hw_tcl_on derives from future_hw_tcl_on when its safe to change it. */
  75 int future_hw_tcl_on = 1;
  76 int hw_tcl_on = 1;
  77
  78 #define need_GL_EXT_stencil_two_side
  79 #define need_GL_ARB_multisample
  80 #define need_GL_ARB_point_parameters
  81 #define need_GL_ARB_texture_compression
  82 #define need_GL_ARB_vertex_buffer_object
  83 #define need_GL_ARB_vertex_program
  84 #define need_GL_EXT_blend_minmax
  85 //#define need_GL_EXT_fog_coord
  86 #define need_GL_EXT_multi_draw_arrays
  87 #define need_GL_EXT_secondary_color
  88 #define need_GL_EXT_blend_equation_separate
  89 #define need_GL_EXT_blend_func_separate
  90 #define need_GL_EXT_gpu_program_parameters
  91 #define need_GL_NV_vertex_program
  92 #include "extension_helper.h"
  93
  94 const struct dri_extension card_extensions[] = {
  95   /* *INDENT-OFF* */
  96   {"GL_ARB_depth_texture",              NULL},
  97   {"GL_ARB_fragment_program",           NULL},
  98   {"GL_ARB_multisample",                GL_ARB_multisample_functions},
  99   {"GL_ARB_multitexture",               NULL},
 100   {"GL_ARB_point_parameters",           GL_ARB_point_parameters_functions},
 101   {"GL_ARB_shadow",                     NULL},
 102   {"GL_ARB_shadow_ambient",             NULL},
 103   {"GL_ARB_texture_border_clamp",       NULL},
 104   {"GL_ARB_texture_compression",        GL_ARB_texture_compression_functions},
 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_buffer_object",       GL_ARB_vertex_buffer_object_functions},
 112   {"GL_ARB_vertex_program",             GL_ARB_vertex_program_functions},
 113   {"GL_EXT_blend_equation_separate",    GL_EXT_blend_equation_separate_functions},
 114   {"GL_EXT_blend_func_separate",        GL_EXT_blend_func_separate_functions},
 115   {"GL_EXT_blend_minmax",               GL_EXT_blend_minmax_functions},
 116   {"GL_EXT_blend_subtract",             NULL},
 117 //  {"GL_EXT_fog_coord",                        GL_EXT_fog_coord_functions },
 118   {"GL_EXT_multi_draw_arrays",          GL_EXT_multi_draw_arrays_functions},
 119   {"GL_EXT_gpu_program_parameters",     GL_EXT_gpu_program_parameters_functions},
 120   {"GL_EXT_secondary_color",            GL_EXT_secondary_color_functions},
 121   {"GL_EXT_shadow_funcs",               NULL},
 122   {"GL_EXT_stencil_two_side",           GL_EXT_stencil_two_side_functions},
 123   {"GL_EXT_stencil_wrap",               NULL},
 124   {"GL_EXT_texture_edge_clamp",         NULL},
 125   {"GL_EXT_texture_env_combine",        NULL},
 126   {"GL_EXT_texture_env_dot3",           NULL},
 127   {"GL_EXT_texture_filter_anisotropic", NULL},
 128   {"GL_EXT_texture_lod_bias",           NULL},
 129   {"GL_EXT_texture_mirror_clamp",       NULL},
 130   {"GL_EXT_texture_rectangle",          NULL},
 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 extern struct tnl_pipeline_stage _r300_render_stage;
 144 extern const struct tnl_pipeline_stage _r300_tcl_stage;
 145
 146 static const struct tnl_pipeline_stage *r300_pipeline[] = {
 147
 148         /* Try and go straight to t&l
 149          */
 150         &_r300_tcl_stage,
 151
 152         /* Catch any t&l fallbacks
 153          */
 154         &_tnl_vertex_transform_stage,
 155         &_tnl_normal_transform_stage,
 156         &_tnl_lighting_stage,
 157         &_tnl_fog_coordinate_stage,
 158         &_tnl_texgen_stage,
 159         &_tnl_texture_transform_stage,
 160         &_tnl_vertex_program_stage,
 161
 162         /* Try again to go to tcl?
 163          *     - no good for asymmetric-twoside (do with multipass)
 164          *     - no good for asymmetric-unfilled (do with multipass)
 165          *     - good for material
 166          *     - good for texgen
 167          *     - need to manipulate a bit of state
 168          *
 169          * - worth it/not worth it?
 170          */
 171
 172         /* Else do them here.
 173          */
 174         &_r300_render_stage,
 175         &_tnl_render_stage,     /* FALLBACK  */
 176         0,
 177 };
 178
 179 static void r300RunPipeline(GLcontext * ctx)
 180 {
 181     _mesa_lock_context_textures(ctx);
 182
 183     if (ctx->NewState)
 184         _mesa_update_state_locked(ctx);
 185
 186     _tnl_run_pipeline(ctx);
 187     _mesa_unlock_context_textures(ctx);
 188 }
 189
 190 static void r300_get_lock(radeonContextPtr rmesa)
 191 {
 192         drm_radeon_sarea_t *sarea = rmesa->sarea;
 193
 194         if (sarea->ctx_owner != rmesa->dri.hwContext) {
 195                 sarea->ctx_owner = rmesa->dri.hwContext;
 196                 if (!rmesa->radeonScreen->kernel_mm)
 197                         radeon_bo_legacy_texture_age(rmesa->radeonScreen->bom);
 198         }
 199 }
 200
 201 static void r300_vtbl_flush(GLcontext *ctx)
 202 {
 203         r300Flush(ctx);
 204 }
 205
 206 static void r300_vtbl_set_all_dirty(GLcontext *ctx)
 207 {
 208         r300ContextPtr rmesa = R300_CONTEXT(ctx);
 209         rmesa->hw.all_dirty = GL_TRUE;
 210 }
 211
 212 static void r300_vtbl_emit_state(radeonContextPtr rmesa)
 213 {
 214         r300EmitState((r300ContextPtr)rmesa);
 215 }
 216
 217 extern int cs_write_dword(struct radeon_cs *cs, uint32_t dword);
 218
 219 static void r300_vtbl_emit_cs_header(struct radeon_cs *cs, radeonContextPtr rmesa)
 220 {
 221     /* please flush pipe do all pending work */
 222     cs_write_dword(cs, cmdpacket0(rmesa->radeonScreen,
 223                                   R300_SC_SCREENDOOR, 1));
 224     cs_write_dword(cs, 0x0);
 225     cs_write_dword(cs, cmdpacket0(rmesa->radeonScreen,
 226                                   R300_SC_SCREENDOOR, 1));
 227     cs_write_dword(cs, 0x00FFFFFF);
 228     cs_write_dword(cs, cmdpacket0(rmesa->radeonScreen,
 229                                   R300_SC_HYPERZ, 1));
 230     cs_write_dword(cs, 0x0);
 231     cs_write_dword(cs, cmdpacket0(rmesa->radeonScreen,
 232                                   R300_US_CONFIG, 1));
 233     cs_write_dword(cs, 0x0);
 234     cs_write_dword(cs, cmdpacket0(rmesa->radeonScreen,
 235                                   R300_ZB_CNTL, 1));
 236     cs_write_dword(cs, 0x0);
 237     cs_write_dword(cs, cmdwait(rmesa->radeonScreen, R300_WAIT_3D));
 238     cs_write_dword(cs, cmdpacket0(rmesa->radeonScreen,
 239                                   R300_RB3D_DSTCACHE_CTLSTAT, 1));
 240     cs_write_dword(cs, R300_RB3D_DSTCACHE_CTLSTAT_DC_FLUSH_FLUSH_DIRTY_3D);
 241     cs_write_dword(cs, cmdpacket0(rmesa->radeonScreen,
 242                                   R300_ZB_ZCACHE_CTLSTAT, 1));
 243     cs_write_dword(cs, R300_ZB_ZCACHE_CTLSTAT_ZC_FLUSH_FLUSH_AND_FREE);
 244     cs_write_dword(cs, cmdwait(rmesa->radeonScreen,
 245                                R300_WAIT_3D | R300_WAIT_3D_CLEAN));
 246 }
 247
 248 static void r300_init_vtbl(radeonContextPtr radeon)
 249 {
 250    radeon->vtbl.get_lock = r300_get_lock;
 251    radeon->vtbl.update_viewport_offset = r300UpdateViewportOffset;
 252    radeon->vtbl.flush = r300_vtbl_flush;
 253    radeon->vtbl.set_all_dirty = r300_vtbl_set_all_dirty;
 254    radeon->vtbl.update_draw_buffer = r300UpdateDrawBuffer;
 255    radeon->vtbl.emit_cs_header = r300_vtbl_emit_cs_header;
 256    radeon->vtbl.emit_state = r300_vtbl_emit_state;
 257 }
 258
 259
 260 /* Create the device specific rendering context.
 261  */
 262 GLboolean r300CreateContext(const __GLcontextModes * glVisual,
 263                             __DRIcontextPrivate * driContextPriv,
 264                             void *sharedContextPrivate)
 265 {
 266         __DRIscreenPrivate *sPriv = driContextPriv->driScreenPriv;
 267         radeonScreenPtr screen = (radeonScreenPtr) (sPriv->private);
 268         struct dd_function_table functions;
 269         r300ContextPtr r300;
 270         GLcontext *ctx;
 271         int tcl_mode;
 272
 273         assert(glVisual);
 274         assert(driContextPriv);
 275         assert(screen);
 276
 277         /* Allocate the R300 context */
 278         r300 = (r300ContextPtr) CALLOC(sizeof(*r300));
 279         if (!r300)
 280                 return GL_FALSE;
 281
 282         if (!(screen->chip_flags & RADEON_CHIPSET_TCL))
 283                 hw_tcl_on = future_hw_tcl_on = 0;
 284
 285         r300_init_vtbl(&r300->radeon);
 286         /* Parse configuration files.
 287          * Do this here so that initialMaxAnisotropy is set before we create
 288          * the default textures.
 289          */
 290         driParseConfigFiles(&r300->radeon.optionCache, &screen->optionCache,
 291                             screen->driScreen->myNum, "r300");
 292         r300->initialMaxAnisotropy = driQueryOptionf(&r300->radeon.optionCache,
 293                                                      "def_max_anisotropy");
 294
 295         /* Init default driver functions then plug in our R300-specific functions
 296          * (the texture functions are especially important)
 297          */
 298         _mesa_init_driver_functions(&functions);
 299         r300InitIoctlFuncs(&functions);
 300         r300InitStateFuncs(&functions);
 301         r300InitTextureFuncs(&functions);
 302         r300InitShaderFuncs(&functions);
 303
 304         if (!radeonInitContext(&r300->radeon, &functions,
 305                                glVisual, driContextPriv,
 306                                sharedContextPrivate)) {
 307                 FREE(r300);
 308                 return GL_FALSE;
 309         }
 310
 311         /* Init r300 context data */
 312         r300->texture_depth = driQueryOptioni(&r300->radeon.optionCache,
 313                                               "texture_depth");
 314         if (r300->texture_depth == DRI_CONF_TEXTURE_DEPTH_FB)
 315                 r300->texture_depth = (screen->cpp == 4) ?
 316                     DRI_CONF_TEXTURE_DEPTH_32 : DRI_CONF_TEXTURE_DEPTH_16;
 317
 318         /* Set the maximum texture size small enough that we can guarentee that
 319          * all texture units can bind a maximal texture and have them both in
 320          * texturable memory at once.
 321          */
 322
 323         ctx = r300->radeon.glCtx;
 324
 325         ctx->Const.MaxTextureImageUnits =
 326             driQueryOptioni(&r300->radeon.optionCache, "texture_image_units");
 327         ctx->Const.MaxTextureCoordUnits =
 328             driQueryOptioni(&r300->radeon.optionCache, "texture_coord_units");
 329         ctx->Const.MaxTextureUnits =
 330             MIN2(ctx->Const.MaxTextureImageUnits,
 331                  ctx->Const.MaxTextureCoordUnits);
 332         ctx->Const.MaxTextureMaxAnisotropy = 16.0;
 333         ctx->Const.MaxTextureLodBias = 16.0;
 334
 335         if (screen->chip_family >= CHIP_FAMILY_RV515) {
 336             ctx->Const.MaxTextureLevels = 13;
 337             ctx->Const.MaxTextureRectSize = 4096;
 338         }
 339
 340         ctx->Const.MinPointSize = 1.0;
 341         ctx->Const.MinPointSizeAA = 1.0;
 342         ctx->Const.MaxPointSize = R300_POINTSIZE_MAX;
 343         ctx->Const.MaxPointSizeAA = R300_POINTSIZE_MAX;
 344
 345         ctx->Const.MinLineWidth = 1.0;
 346         ctx->Const.MinLineWidthAA = 1.0;
 347         ctx->Const.MaxLineWidth = R300_LINESIZE_MAX;
 348         ctx->Const.MaxLineWidthAA = R300_LINESIZE_MAX;
 349
 350         /* Needs further modifications */
 351 #if 0
 352         ctx->Const.MaxArrayLockSize =
 353             ( /*512 */ RADEON_BUFFER_SIZE * 16 * 1024) / (4 * 4);
 354 #endif
 355
 356         /* Initialize the software rasterizer and helper modules.
 357          */
 358         _swrast_CreateContext(ctx);
 359         _vbo_CreateContext(ctx);
 360         _tnl_CreateContext(ctx);
 361         _swsetup_CreateContext(ctx);
 362         _swsetup_Wakeup(ctx);
 363         _ae_create_context(ctx);
 364
 365         /* Install the customized pipeline:
 366          */
 367         _tnl_destroy_pipeline(ctx);
 368         _tnl_install_pipeline(ctx, r300_pipeline);
 369
 370         /* Try and keep materials and vertices separate:
 371          */
 372 /*      _tnl_isolate_materials(ctx, GL_TRUE); */
 373
 374         /* Configure swrast and TNL to match hardware characteristics:
 375          */
 376         _swrast_allow_pixel_fog(ctx, GL_FALSE);
 377         _swrast_allow_vertex_fog(ctx, GL_TRUE);
 378         _tnl_allow_pixel_fog(ctx, GL_FALSE);
 379         _tnl_allow_vertex_fog(ctx, GL_TRUE);
 380
 381         /* currently bogus data */
 382         if (screen->chip_flags & RADEON_CHIPSET_TCL) {
 383                 ctx->Const.VertexProgram.MaxInstructions = VSF_MAX_FRAGMENT_LENGTH / 4;
 384                 ctx->Const.VertexProgram.MaxNativeInstructions =
 385                   VSF_MAX_FRAGMENT_LENGTH / 4;
 386                 ctx->Const.VertexProgram.MaxNativeAttribs = 16; /* r420 */
 387                 ctx->Const.VertexProgram.MaxTemps = 32;
 388                 ctx->Const.VertexProgram.MaxNativeTemps =
 389                   /*VSF_MAX_FRAGMENT_TEMPS */ 32;
 390                 ctx->Const.VertexProgram.MaxNativeParameters = 256;     /* r420 */
 391                 ctx->Const.VertexProgram.MaxNativeAddressRegs = 1;
 392         }
 393
 394         ctx->Const.FragmentProgram.MaxNativeTemps = PFS_NUM_TEMP_REGS;
 395         ctx->Const.FragmentProgram.MaxNativeAttribs = 11;       /* copy i915... */
 396         ctx->Const.FragmentProgram.MaxNativeParameters = PFS_NUM_CONST_REGS;
 397         ctx->Const.FragmentProgram.MaxNativeAluInstructions = PFS_MAX_ALU_INST;
 398         ctx->Const.FragmentProgram.MaxNativeTexInstructions = PFS_MAX_TEX_INST;
 399         ctx->Const.FragmentProgram.MaxNativeInstructions =
 400             PFS_MAX_ALU_INST + PFS_MAX_TEX_INST;
 401         ctx->Const.FragmentProgram.MaxNativeTexIndirections =
 402             PFS_MAX_TEX_INDIRECT;
 403         ctx->Const.FragmentProgram.MaxNativeAddressRegs = 0;    /* and these are?? */
 404         ctx->VertexProgram._MaintainTnlProgram = GL_TRUE;
 405         ctx->FragmentProgram._MaintainTexEnvProgram = GL_TRUE;
 406
 407         driInitExtensions(ctx, card_extensions, GL_TRUE);
 408
 409         if (driQueryOptionb
 410             (&r300->radeon.optionCache, "disable_stencil_two_side"))
 411                 _mesa_disable_extension(ctx, "GL_EXT_stencil_two_side");
 412
 413         if (r300->radeon.glCtx->Mesa_DXTn
 414             && !driQueryOptionb(&r300->radeon.optionCache, "disable_s3tc")) {
 415                 _mesa_enable_extension(ctx, "GL_EXT_texture_compression_s3tc");
 416                 _mesa_enable_extension(ctx, "GL_S3_s3tc");
 417         } else
 418             if (driQueryOptionb(&r300->radeon.optionCache, "force_s3tc_enable"))
 419         {
 420                 _mesa_enable_extension(ctx, "GL_EXT_texture_compression_s3tc");
 421         }
 422
 423         r300->disable_lowimpact_fallback =
 424             driQueryOptionb(&r300->radeon.optionCache,
 425                             "disable_lowimpact_fallback");
 426
 427         radeonInitSpanFuncs(ctx);
 428         r300InitCmdBuf(r300);
 429         r300InitState(r300);
 430         if (!(screen->chip_flags & RADEON_CHIPSET_TCL))
 431                 r300InitSwtcl(ctx);
 432
 433         TNL_CONTEXT(ctx)->Driver.RunPipeline = r300RunPipeline;
 434
 435         tcl_mode = driQueryOptioni(&r300->radeon.optionCache, "tcl_mode");
 436         if (driQueryOptionb(&r300->radeon.optionCache, "no_rast")) {
 437                 fprintf(stderr, "disabling 3D acceleration\n");
 438 #if R200_MERGED
 439                 FALLBACK(&r300->radeon, RADEON_FALLBACK_DISABLE, 1);
 440 #endif
 441         }
 442         if (tcl_mode == DRI_CONF_TCL_SW ||
 443             !(r300->radeon.radeonScreen->chip_flags & RADEON_CHIPSET_TCL)) {
 444                 if (r300->radeon.radeonScreen->chip_flags & RADEON_CHIPSET_TCL) {
 445                         r300->radeon.radeonScreen->chip_flags &=
 446                             ~RADEON_CHIPSET_TCL;
 447                         fprintf(stderr, "Disabling HW TCL support\n");
 448                 }
 449                 TCL_FALLBACK(r300->radeon.glCtx,
 450                              RADEON_TCL_FALLBACK_TCL_DISABLE, 1);
 451         }
 452
 453         return GL_TRUE;
 454 }
 455
 456 /* Destroy the device specific context.
 457  */
 458 void r300DestroyContext(__DRIcontextPrivate * driContextPriv)
 459 {
 460         GET_CURRENT_CONTEXT(ctx);
 461         r300ContextPtr r300 = (r300ContextPtr) driContextPriv->driverPrivate;
 462         radeonContextPtr radeon = (radeonContextPtr) r300;
 463         radeonContextPtr current = ctx ? RADEON_CONTEXT(ctx) : NULL;
 464
 465         if (RADEON_DEBUG & DEBUG_DRI) {
 466                 fprintf(stderr, "Destroying context !\n");
 467         }
 468
 469         /* check if we're deleting the currently bound context */
 470         if (&r300->radeon == current) {
 471                 radeonFlush(r300->radeon.glCtx);
 472                 _mesa_make_current(NULL, NULL, NULL);
 473         }
 474
 475         /* Free r300 context resources */
 476         assert(r300);           /* should never be null */
 477
 478         if (r300) {
 479                 _swsetup_DestroyContext(r300->radeon.glCtx);
 480                 _tnl_DestroyContext(r300->radeon.glCtx);
 481                 _vbo_DestroyContext(r300->radeon.glCtx);
 482                 _swrast_DestroyContext(r300->radeon.glCtx);
 483
 484                 rcommonFlushCmdBuf(&r300->radeon, __FUNCTION__);
 485                 r300DestroyCmdBuf(r300);
 486
 487                 if (radeon->state.scissor.pClipRects) {
 488                         FREE(radeon->state.scissor.pClipRects);
 489                         radeon->state.scissor.pClipRects = NULL;
 490                 }
 491
 492                 radeonCleanupContext(&r300->radeon);
 493
 494                 /* the memory manager might be accessed when Mesa frees the shared
 495                  * state, so don't destroy it earlier
 496                  */
 497
 498
 499                 FREE(r300);
 500         }
 501 }