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 "r300_context.h"
  59 #include "radeon_context.h"
  60 #include "radeon_span.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_bocs_wrapper.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_emit_cs_header(struct radeon_cs *cs, radeonContextPtr rmesa)
 202 {
 203     /* please flush pipe do all pending work */
 204     radeon_cs_write_dword(cs, cmdpacket0(rmesa->radeonScreen,
 205                                   R300_SC_SCREENDOOR, 1));
 206     radeon_cs_write_dword(cs, 0x0);
 207     radeon_cs_write_dword(cs, cmdpacket0(rmesa->radeonScreen,
 208                                   R300_SC_SCREENDOOR, 1));
 209     radeon_cs_write_dword(cs, 0x00FFFFFF);
 210     radeon_cs_write_dword(cs, cmdpacket0(rmesa->radeonScreen,
 211                                   R300_SC_HYPERZ, 1));
 212     radeon_cs_write_dword(cs, 0x0);
 213     radeon_cs_write_dword(cs, cmdpacket0(rmesa->radeonScreen,
 214                                   R300_US_CONFIG, 1));
 215     radeon_cs_write_dword(cs, 0x0);
 216     radeon_cs_write_dword(cs, cmdpacket0(rmesa->radeonScreen,
 217                                   R300_ZB_CNTL, 1));
 218     radeon_cs_write_dword(cs, 0x0);
 219     radeon_cs_write_dword(cs, cmdwait(rmesa->radeonScreen, R300_WAIT_3D));
 220     radeon_cs_write_dword(cs, cmdpacket0(rmesa->radeonScreen,
 221                                   R300_RB3D_DSTCACHE_CTLSTAT, 1));
 222     radeon_cs_write_dword(cs, R300_RB3D_DSTCACHE_CTLSTAT_DC_FLUSH_FLUSH_DIRTY_3D);
 223     radeon_cs_write_dword(cs, cmdpacket0(rmesa->radeonScreen,
 224                                   R300_ZB_ZCACHE_CTLSTAT, 1));
 225     radeon_cs_write_dword(cs, R300_ZB_ZCACHE_CTLSTAT_ZC_FLUSH_FLUSH_AND_FREE);
 226     radeon_cs_write_dword(cs, cmdwait(rmesa->radeonScreen,
 227                                R300_WAIT_3D | R300_WAIT_3D_CLEAN));
 228 }
 229
 230 static void r300_vtbl_pre_emit_atoms(radeonContextPtr radeon)
 231 {
 232    BATCH_LOCALS(radeon);
 233    cp_wait(radeon, R300_WAIT_3D | R300_WAIT_3D_CLEAN);
 234    BEGIN_BATCH_NO_AUTOSTATE(2);
 235    OUT_BATCH(cmdpacket0(radeon->radeonScreen, R300_TX_INVALTAGS, 1));
 236    OUT_BATCH(R300_TX_FLUSH);
 237    END_BATCH();
 238    end_3d(radeon);
 239 }
 240
 241 static void r300_init_vtbl(radeonContextPtr radeon)
 242 {
 243    radeon->vtbl.get_lock = r300_get_lock;
 244    radeon->vtbl.update_viewport_offset = r300UpdateViewportOffset;
 245    radeon->vtbl.update_draw_buffer = r300UpdateDrawBuffer;
 246    radeon->vtbl.emit_cs_header = r300_vtbl_emit_cs_header;
 247    radeon->vtbl.swtcl_flush = r300_swtcl_flush;
 248    radeon->vtbl.pre_emit_atoms = r300_vtbl_pre_emit_atoms;
 249 }
 250
 251
 252 /* Create the device specific rendering context.
 253  */
 254 GLboolean r300CreateContext(const __GLcontextModes * glVisual,
 255                             __DRIcontextPrivate * driContextPriv,
 256                             void *sharedContextPrivate)
 257 {
 258         __DRIscreenPrivate *sPriv = driContextPriv->driScreenPriv;
 259         radeonScreenPtr screen = (radeonScreenPtr) (sPriv->private);
 260         struct dd_function_table functions;
 261         r300ContextPtr r300;
 262         GLcontext *ctx;
 263         int tcl_mode;
 264
 265         assert(glVisual);
 266         assert(driContextPriv);
 267         assert(screen);
 268
 269         /* Allocate the R300 context */
 270         r300 = (r300ContextPtr) CALLOC(sizeof(*r300));
 271         if (!r300)
 272                 return GL_FALSE;
 273
 274         if (!(screen->chip_flags & RADEON_CHIPSET_TCL))
 275                 hw_tcl_on = future_hw_tcl_on = 0;
 276
 277         r300_init_vtbl(&r300->radeon);
 278         /* Parse configuration files.
 279          * Do this here so that initialMaxAnisotropy is set before we create
 280          * the default textures.
 281          */
 282         driParseConfigFiles(&r300->radeon.optionCache, &screen->optionCache,
 283                             screen->driScreen->myNum, "r300");
 284         r300->radeon.initialMaxAnisotropy = driQueryOptionf(&r300->radeon.optionCache,
 285                                                      "def_max_anisotropy");
 286
 287         /* Init default driver functions then plug in our R300-specific functions
 288          * (the texture functions are especially important)
 289          */
 290         _mesa_init_driver_functions(&functions);
 291         r300InitIoctlFuncs(&functions);
 292         r300InitStateFuncs(&functions);
 293         r300InitTextureFuncs(&functions);
 294         r300InitShaderFuncs(&functions);
 295
 296         if (!radeonInitContext(&r300->radeon, &functions,
 297                                glVisual, driContextPriv,
 298                                sharedContextPrivate)) {
 299                 FREE(r300);
 300                 return GL_FALSE;
 301         }
 302
 303         /* Init r300 context data */
 304         r300->radeon.texture_depth = driQueryOptioni(&r300->radeon.optionCache,
 305                                               "texture_depth");
 306         if (r300->radeon.texture_depth == DRI_CONF_TEXTURE_DEPTH_FB)
 307                 r300->radeon.texture_depth = (screen->cpp == 4) ?
 308                     DRI_CONF_TEXTURE_DEPTH_32 : DRI_CONF_TEXTURE_DEPTH_16;
 309
 310         /* Set the maximum texture size small enough that we can guarentee that
 311          * all texture units can bind a maximal texture and have them both in
 312          * texturable memory at once.
 313          */
 314
 315         ctx = r300->radeon.glCtx;
 316
 317         ctx->Const.MaxTextureImageUnits =
 318             driQueryOptioni(&r300->radeon.optionCache, "texture_image_units");
 319         ctx->Const.MaxTextureCoordUnits =
 320             driQueryOptioni(&r300->radeon.optionCache, "texture_coord_units");
 321         ctx->Const.MaxTextureUnits =
 322             MIN2(ctx->Const.MaxTextureImageUnits,
 323                  ctx->Const.MaxTextureCoordUnits);
 324         ctx->Const.MaxTextureMaxAnisotropy = 16.0;
 325         ctx->Const.MaxTextureLodBias = 16.0;
 326
 327         if (screen->chip_family >= CHIP_FAMILY_RV515) {
 328             ctx->Const.MaxTextureLevels = 13;
 329             ctx->Const.MaxTextureRectSize = 4096;
 330         }
 331
 332         ctx->Const.MinPointSize = 1.0;
 333         ctx->Const.MinPointSizeAA = 1.0;
 334         ctx->Const.MaxPointSize = R300_POINTSIZE_MAX;
 335         ctx->Const.MaxPointSizeAA = R300_POINTSIZE_MAX;
 336
 337         ctx->Const.MinLineWidth = 1.0;
 338         ctx->Const.MinLineWidthAA = 1.0;
 339         ctx->Const.MaxLineWidth = R300_LINESIZE_MAX;
 340         ctx->Const.MaxLineWidthAA = R300_LINESIZE_MAX;
 341
 342         /* Needs further modifications */
 343 #if 0
 344         ctx->Const.MaxArrayLockSize =
 345             ( /*512 */ RADEON_BUFFER_SIZE * 16 * 1024) / (4 * 4);
 346 #endif
 347
 348         /* Initialize the software rasterizer and helper modules.
 349          */
 350         _swrast_CreateContext(ctx);
 351         _vbo_CreateContext(ctx);
 352         _tnl_CreateContext(ctx);
 353         _swsetup_CreateContext(ctx);
 354         _swsetup_Wakeup(ctx);
 355         _ae_create_context(ctx);
 356
 357         /* Install the customized pipeline:
 358          */
 359         _tnl_destroy_pipeline(ctx);
 360         _tnl_install_pipeline(ctx, r300_pipeline);
 361
 362         /* Try and keep materials and vertices separate:
 363          */
 364 /*      _tnl_isolate_materials(ctx, GL_TRUE); */
 365
 366         /* Configure swrast and TNL to match hardware characteristics:
 367          */
 368         _swrast_allow_pixel_fog(ctx, GL_FALSE);
 369         _swrast_allow_vertex_fog(ctx, GL_TRUE);
 370         _tnl_allow_pixel_fog(ctx, GL_FALSE);
 371         _tnl_allow_vertex_fog(ctx, GL_TRUE);
 372
 373         /* currently bogus data */
 374         if (screen->chip_flags & RADEON_CHIPSET_TCL) {
 375                 ctx->Const.VertexProgram.MaxInstructions = VSF_MAX_FRAGMENT_LENGTH / 4;
 376                 ctx->Const.VertexProgram.MaxNativeInstructions =
 377                   VSF_MAX_FRAGMENT_LENGTH / 4;
 378                 ctx->Const.VertexProgram.MaxNativeAttribs = 16; /* r420 */
 379                 ctx->Const.VertexProgram.MaxTemps = 32;
 380                 ctx->Const.VertexProgram.MaxNativeTemps =
 381                   /*VSF_MAX_FRAGMENT_TEMPS */ 32;
 382                 ctx->Const.VertexProgram.MaxNativeParameters = 256;     /* r420 */
 383                 ctx->Const.VertexProgram.MaxNativeAddressRegs = 1;
 384         }
 385
 386         ctx->Const.FragmentProgram.MaxNativeTemps = PFS_NUM_TEMP_REGS;
 387         ctx->Const.FragmentProgram.MaxNativeAttribs = 11;       /* copy i915... */
 388         ctx->Const.FragmentProgram.MaxNativeParameters = PFS_NUM_CONST_REGS;
 389         ctx->Const.FragmentProgram.MaxNativeAluInstructions = PFS_MAX_ALU_INST;
 390         ctx->Const.FragmentProgram.MaxNativeTexInstructions = PFS_MAX_TEX_INST;
 391         ctx->Const.FragmentProgram.MaxNativeInstructions =
 392             PFS_MAX_ALU_INST + PFS_MAX_TEX_INST;
 393         ctx->Const.FragmentProgram.MaxNativeTexIndirections =
 394             PFS_MAX_TEX_INDIRECT;
 395         ctx->Const.FragmentProgram.MaxNativeAddressRegs = 0;    /* and these are?? */
 396         ctx->VertexProgram._MaintainTnlProgram = GL_TRUE;
 397         ctx->FragmentProgram._MaintainTexEnvProgram = GL_TRUE;
 398
 399         driInitExtensions(ctx, card_extensions, GL_TRUE);
 400
 401         if (driQueryOptionb
 402             (&r300->radeon.optionCache, "disable_stencil_two_side"))
 403                 _mesa_disable_extension(ctx, "GL_EXT_stencil_two_side");
 404
 405         if (r300->radeon.glCtx->Mesa_DXTn
 406             && !driQueryOptionb(&r300->radeon.optionCache, "disable_s3tc")) {
 407                 _mesa_enable_extension(ctx, "GL_EXT_texture_compression_s3tc");
 408                 _mesa_enable_extension(ctx, "GL_S3_s3tc");
 409         } else
 410             if (driQueryOptionb(&r300->radeon.optionCache, "force_s3tc_enable"))
 411         {
 412                 _mesa_enable_extension(ctx, "GL_EXT_texture_compression_s3tc");
 413         }
 414
 415         r300->disable_lowimpact_fallback =
 416             driQueryOptionb(&r300->radeon.optionCache,
 417                             "disable_lowimpact_fallback");
 418
 419         radeonInitSpanFuncs( ctx );
 420         r300InitCmdBuf(r300);
 421         r300InitState(r300);
 422         if (!(screen->chip_flags & RADEON_CHIPSET_TCL))
 423                 r300InitSwtcl(ctx);
 424
 425         TNL_CONTEXT(ctx)->Driver.RunPipeline = r300RunPipeline;
 426
 427         tcl_mode = driQueryOptioni(&r300->radeon.optionCache, "tcl_mode");
 428         if (driQueryOptionb(&r300->radeon.optionCache, "no_rast")) {
 429                 fprintf(stderr, "disabling 3D acceleration\n");
 430 #if R200_MERGED
 431                 FALLBACK(&r300->radeon, RADEON_FALLBACK_DISABLE, 1);
 432 #endif
 433         }
 434         if (tcl_mode == DRI_CONF_TCL_SW ||
 435             !(r300->radeon.radeonScreen->chip_flags & RADEON_CHIPSET_TCL)) {
 436                 if (r300->radeon.radeonScreen->chip_flags & RADEON_CHIPSET_TCL) {
 437                         r300->radeon.radeonScreen->chip_flags &=
 438                             ~RADEON_CHIPSET_TCL;
 439                         fprintf(stderr, "Disabling HW TCL support\n");
 440                 }
 441                 TCL_FALLBACK(r300->radeon.glCtx,
 442                              RADEON_TCL_FALLBACK_TCL_DISABLE, 1);
 443         }
 444
 445         return GL_TRUE;
 446 }
 447
 448 /* Destroy the device specific context.
 449  */
 450 void r300DestroyContext(__DRIcontextPrivate * driContextPriv)
 451 {
 452         GET_CURRENT_CONTEXT(ctx);
 453         r300ContextPtr r300 = (r300ContextPtr) driContextPriv->driverPrivate;
 454         radeonContextPtr radeon = (radeonContextPtr) r300;
 455         radeonContextPtr current = ctx ? RADEON_CONTEXT(ctx) : NULL;
 456
 457         if (RADEON_DEBUG & DEBUG_DRI) {
 458                 fprintf(stderr, "Destroying context !\n");
 459         }
 460
 461         /* check if we're deleting the currently bound context */
 462         if (&r300->radeon == current) {
 463                 radeonFlush(r300->radeon.glCtx);
 464                 _mesa_make_current(NULL, NULL, NULL);
 465         }
 466
 467         /* Free r300 context resources */
 468         assert(r300);           /* should never be null */
 469
 470         if (r300) {
 471                 _swsetup_DestroyContext(r300->radeon.glCtx);
 472                 _tnl_DestroyContext(r300->radeon.glCtx);
 473                 _vbo_DestroyContext(r300->radeon.glCtx);
 474                 _swrast_DestroyContext(r300->radeon.glCtx);
 475
 476                 rcommonFlushCmdBuf(&r300->radeon, __FUNCTION__);
 477
 478                 if (radeon->state.scissor.pClipRects) {
 479                         FREE(radeon->state.scissor.pClipRects);
 480                         radeon->state.scissor.pClipRects = NULL;
 481                 }
 482
 483                 r300DestroyCmdBuf(r300);
 484
 485                 radeonCleanupContext(&r300->radeon);
 486
 487
 488                 /* the memory manager might be accessed when Mesa frees the shared
 489                  * state, so don't destroy it earlier
 490                  */
 491
 492
 493                 FREE(r300);
 494         }
 495 }