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 #include "main/texobj.h"
  48
  49 #include "swrast/swrast.h"
  50 #include "swrast_setup/swrast_setup.h"
  51 #include "vbo/vbo.h"
  52
  53 #include "tnl/tnl.h"
  54 #include "tnl/t_pipeline.h"
  55 #include "tnl/t_vp_build.h"
  56
  57 #include "drivers/common/driverfuncs.h"
  58
  59 #include "r300_context.h"
  60 #include "radeon_context.h"
  61 #include "radeon_span.h"
  62 #include "r300_cmdbuf.h"
  63 #include "r300_state.h"
  64 #include "r300_ioctl.h"
  65 #include "r300_tex.h"
  66 #include "r300_emit.h"
  67 #include "r300_swtcl.h"
  68 #include "radeon_bocs_wrapper.h"
  69
  70
  71 #include "vblank.h"
  72 #include "utils.h"
  73 #include "xmlpool.h"            /* for symbolic values of enum-type options */
  74
  75 /* hw_tcl_on derives from future_hw_tcl_on when its safe to change it. */
  76 int future_hw_tcl_on = 1;
  77 int hw_tcl_on = 1;
  78
  79 #define need_GL_VERSION_2_0
  80 #define need_GL_ARB_point_parameters
  81 #define need_GL_ARB_vertex_program
  82 #define need_GL_EXT_blend_equation_separate
  83 #define need_GL_EXT_blend_func_separate
  84 #define need_GL_EXT_blend_minmax
  85 //#define need_GL_EXT_fog_coord
  86 #define need_GL_EXT_gpu_program_parameters
  87 #define need_GL_EXT_secondary_color
  88 #define need_GL_EXT_stencil_two_side
  89 #define need_GL_ATI_separate_stencil
  90 #define need_GL_NV_vertex_program
  91 #include "extension_helper.h"
  92
  93 const struct dri_extension card_extensions[] = {
  94   /* *INDENT-OFF* */
  95   {"GL_ARB_depth_texture",              NULL},
  96   {"GL_ARB_fragment_program",           NULL},
  97   {"GL_ARB_multitexture",               NULL},
  98   {"GL_ARB_point_parameters",           GL_ARB_point_parameters_functions},
  99   {"GL_ARB_shadow",                     NULL},
 100   {"GL_ARB_shadow_ambient",             NULL},
 101   {"GL_ARB_texture_border_clamp",       NULL},
 102   {"GL_ARB_texture_cube_map",           NULL},
 103   {"GL_ARB_texture_env_add",            NULL},
 104   {"GL_ARB_texture_env_combine",        NULL},
 105   {"GL_ARB_texture_env_crossbar",       NULL},
 106   {"GL_ARB_texture_env_dot3",           NULL},
 107   {"GL_ARB_texture_mirrored_repeat",    NULL},
 108   {"GL_ARB_vertex_program",             GL_ARB_vertex_program_functions},
 109   {"GL_EXT_blend_equation_separate",    GL_EXT_blend_equation_separate_functions},
 110   {"GL_EXT_blend_func_separate",        GL_EXT_blend_func_separate_functions},
 111   {"GL_EXT_blend_minmax",               GL_EXT_blend_minmax_functions},
 112   {"GL_EXT_blend_subtract",             NULL},
 113 //  {"GL_EXT_fog_coord",                        GL_EXT_fog_coord_functions },
 114   {"GL_EXT_gpu_program_parameters",     GL_EXT_gpu_program_parameters_functions},
 115   {"GL_EXT_secondary_color",            GL_EXT_secondary_color_functions},
 116   {"GL_EXT_shadow_funcs",               NULL},
 117   {"GL_EXT_stencil_two_side",           GL_EXT_stencil_two_side_functions},
 118   {"GL_EXT_stencil_wrap",               NULL},
 119   {"GL_EXT_texture_edge_clamp",         NULL},
 120   {"GL_EXT_texture_env_combine",        NULL},
 121   {"GL_EXT_texture_env_dot3",           NULL},
 122   {"GL_EXT_texture_filter_anisotropic", NULL},
 123   {"GL_EXT_texture_lod_bias",           NULL},
 124   {"GL_EXT_texture_mirror_clamp",       NULL},
 125   {"GL_EXT_texture_rectangle",          NULL},
 126   {"GL_ATI_separate_stencil",           GL_ATI_separate_stencil_functions},
 127   {"GL_ATI_texture_env_combine3",       NULL},
 128   {"GL_ATI_texture_mirror_once",        NULL},
 129   {"GL_MESA_pack_invert",               NULL},
 130   {"GL_MESA_ycbcr_texture",             NULL},
 131   {"GL_MESAX_texture_float",            NULL},
 132   {"GL_NV_blend_square",                NULL},
 133   {"GL_NV_vertex_program",              GL_NV_vertex_program_functions},
 134   {"GL_SGIS_generate_mipmap",           NULL},
 135   {NULL,                                NULL}
 136   /* *INDENT-ON* */
 137 };
 138
 139
 140 /**
 141  * The GL 2.0 functions are needed to make display lists work with
 142  * functions added by GL_ATI_separate_stencil.
 143  */
 144 const struct dri_extension gl_20_extension[] = {
 145   {"GL_VERSION_2_0",                    GL_VERSION_2_0_functions },
 146 };
 147
 148
 149 extern struct tnl_pipeline_stage _r300_render_stage;
 150 extern const struct tnl_pipeline_stage _r300_tcl_stage;
 151
 152 static const struct tnl_pipeline_stage *r300_pipeline[] = {
 153
 154         /* Try and go straight to t&l
 155          */
 156         &_r300_tcl_stage,
 157
 158         /* Catch any t&l fallbacks
 159          */
 160         &_tnl_vertex_transform_stage,
 161         &_tnl_normal_transform_stage,
 162         &_tnl_lighting_stage,
 163         &_tnl_fog_coordinate_stage,
 164         &_tnl_texgen_stage,
 165         &_tnl_texture_transform_stage,
 166         &_tnl_vertex_program_stage,
 167
 168         /* Try again to go to tcl?
 169          *     - no good for asymmetric-twoside (do with multipass)
 170          *     - no good for asymmetric-unfilled (do with multipass)
 171          *     - good for material
 172          *     - good for texgen
 173          *     - need to manipulate a bit of state
 174          *
 175          * - worth it/not worth it?
 176          */
 177
 178         /* Else do them here.
 179          */
 180         &_r300_render_stage,
 181         &_tnl_render_stage,     /* FALLBACK  */
 182         0,
 183 };
 184
 185 static void r300RunPipeline(GLcontext * ctx)
 186 {
 187     _mesa_lock_context_textures(ctx);
 188
 189     if (ctx->NewState)
 190         _mesa_update_state_locked(ctx);
 191
 192     _tnl_run_pipeline(ctx);
 193     _mesa_unlock_context_textures(ctx);
 194 }
 195
 196 static void r300_get_lock(radeonContextPtr rmesa)
 197 {
 198         drm_radeon_sarea_t *sarea = rmesa->sarea;
 199
 200         if (sarea->ctx_owner != rmesa->dri.hwContext) {
 201                 sarea->ctx_owner = rmesa->dri.hwContext;
 202                 if (!rmesa->radeonScreen->kernel_mm)
 203                         radeon_bo_legacy_texture_age(rmesa->radeonScreen->bom);
 204         }
 205 }
 206
 207 static void r300_vtbl_emit_cs_header(struct radeon_cs *cs, radeonContextPtr rmesa)
 208 {
 209     /* please flush pipe do all pending work */
 210     radeon_cs_write_dword(cs, cmdpacket0(rmesa->radeonScreen,
 211                                   R300_SC_SCREENDOOR, 1));
 212     radeon_cs_write_dword(cs, 0x0);
 213     radeon_cs_write_dword(cs, cmdpacket0(rmesa->radeonScreen,
 214                                   R300_SC_SCREENDOOR, 1));
 215     radeon_cs_write_dword(cs, 0x00FFFFFF);
 216     radeon_cs_write_dword(cs, cmdpacket0(rmesa->radeonScreen,
 217                                   R300_SC_HYPERZ, 1));
 218     radeon_cs_write_dword(cs, 0x0);
 219     radeon_cs_write_dword(cs, cmdpacket0(rmesa->radeonScreen,
 220                                   R300_US_CONFIG, 1));
 221     radeon_cs_write_dword(cs, 0x0);
 222     radeon_cs_write_dword(cs, cmdpacket0(rmesa->radeonScreen,
 223                                   R300_ZB_CNTL, 1));
 224     radeon_cs_write_dword(cs, 0x0);
 225     radeon_cs_write_dword(cs, cmdwait(rmesa->radeonScreen, R300_WAIT_3D));
 226     radeon_cs_write_dword(cs, cmdpacket0(rmesa->radeonScreen,
 227                                   R300_RB3D_DSTCACHE_CTLSTAT, 1));
 228     radeon_cs_write_dword(cs, R300_RB3D_DSTCACHE_CTLSTAT_DC_FLUSH_FLUSH_DIRTY_3D);
 229     radeon_cs_write_dword(cs, cmdpacket0(rmesa->radeonScreen,
 230                                   R300_ZB_ZCACHE_CTLSTAT, 1));
 231     radeon_cs_write_dword(cs, R300_ZB_ZCACHE_CTLSTAT_ZC_FLUSH_FLUSH_AND_FREE);
 232     radeon_cs_write_dword(cs, cmdwait(rmesa->radeonScreen,
 233                                R300_WAIT_3D | R300_WAIT_3D_CLEAN));
 234 }
 235
 236 static void r300_vtbl_pre_emit_atoms(radeonContextPtr radeon)
 237 {
 238    BATCH_LOCALS(radeon);
 239    cp_wait(radeon, R300_WAIT_3D | R300_WAIT_3D_CLEAN);
 240    BEGIN_BATCH_NO_AUTOSTATE(2);
 241    OUT_BATCH(cmdpacket0(radeon->radeonScreen, R300_TX_INVALTAGS, 1));
 242    OUT_BATCH(R300_TX_FLUSH);
 243    END_BATCH();
 244    end_3d(radeon);
 245 }
 246
 247 static void r300_init_vtbl(radeonContextPtr radeon)
 248 {
 249    radeon->vtbl.get_lock = r300_get_lock;
 250    radeon->vtbl.update_viewport_offset = r300UpdateViewportOffset;
 251    radeon->vtbl.update_draw_buffer = r300UpdateDrawBuffer;
 252    radeon->vtbl.emit_cs_header = r300_vtbl_emit_cs_header;
 253    radeon->vtbl.swtcl_flush = r300_swtcl_flush;
 254    radeon->vtbl.pre_emit_atoms = r300_vtbl_pre_emit_atoms;
 255 }
 256
 257
 258 /* Create the device specific rendering context.
 259  */
 260 GLboolean r300CreateContext(const __GLcontextModes * glVisual,
 261                             __DRIcontextPrivate * driContextPriv,
 262                             void *sharedContextPrivate)
 263 {
 264         __DRIscreenPrivate *sPriv = driContextPriv->driScreenPriv;
 265         radeonScreenPtr screen = (radeonScreenPtr) (sPriv->private);
 266         struct dd_function_table functions;
 267         r300ContextPtr r300;
 268         GLcontext *ctx;
 269         int tcl_mode;
 270
 271         assert(glVisual);
 272         assert(driContextPriv);
 273         assert(screen);
 274
 275         /* Allocate the R300 context */
 276         r300 = (r300ContextPtr) CALLOC(sizeof(*r300));
 277         if (!r300)
 278                 return GL_FALSE;
 279
 280         if (!(screen->chip_flags & RADEON_CHIPSET_TCL))
 281                 hw_tcl_on = future_hw_tcl_on = 0;
 282
 283         r300_init_vtbl(&r300->radeon);
 284         /* Parse configuration files.
 285          * Do this here so that initialMaxAnisotropy is set before we create
 286          * the default textures.
 287          */
 288         driParseConfigFiles(&r300->radeon.optionCache, &screen->optionCache,
 289                             screen->driScreen->myNum, "r300");
 290         r300->radeon.initialMaxAnisotropy = driQueryOptionf(&r300->radeon.optionCache,
 291                                                      "def_max_anisotropy");
 292
 293         /* Init default driver functions then plug in our R300-specific functions
 294          * (the texture functions are especially important)
 295          */
 296         _mesa_init_driver_functions(&functions);
 297         r300InitIoctlFuncs(&functions);
 298         r300InitStateFuncs(&functions);
 299         r300InitTextureFuncs(&functions);
 300         r300InitShaderFuncs(&functions);
 301
 302         if (!radeonInitContext(&r300->radeon, &functions,
 303                                glVisual, driContextPriv,
 304                                sharedContextPrivate)) {
 305                 FREE(r300);
 306                 return GL_FALSE;
 307         }
 308
 309         /* Init r300 context data */
 310         r300->radeon.texture_depth = driQueryOptioni(&r300->radeon.optionCache,
 311                                               "texture_depth");
 312         if (r300->radeon.texture_depth == DRI_CONF_TEXTURE_DEPTH_FB)
 313                 r300->radeon.texture_depth = (screen->cpp == 4) ?
 314                     DRI_CONF_TEXTURE_DEPTH_32 : DRI_CONF_TEXTURE_DEPTH_16;
 315
 316         /* Set the maximum texture size small enough that we can guarentee that
 317          * all texture units can bind a maximal texture and have them both in
 318          * texturable memory at once.
 319          */
 320
 321         ctx = r300->radeon.glCtx;
 322
 323         ctx->Const.MaxTextureImageUnits =
 324             driQueryOptioni(&r300->radeon.optionCache, "texture_image_units");
 325         ctx->Const.MaxTextureCoordUnits =
 326             driQueryOptioni(&r300->radeon.optionCache, "texture_coord_units");
 327         ctx->Const.MaxTextureUnits =
 328             MIN2(ctx->Const.MaxTextureImageUnits,
 329                  ctx->Const.MaxTextureCoordUnits);
 330         ctx->Const.MaxTextureMaxAnisotropy = 16.0;
 331         ctx->Const.MaxTextureLodBias = 16.0;
 332
 333         if (screen->chip_family >= CHIP_FAMILY_RV515) {
 334             ctx->Const.MaxTextureLevels = 13;
 335             ctx->Const.MaxTextureRectSize = 4096;
 336         }
 337
 338         ctx->Const.MinPointSize = 1.0;
 339         ctx->Const.MinPointSizeAA = 1.0;
 340         ctx->Const.MaxPointSize = R300_POINTSIZE_MAX;
 341         ctx->Const.MaxPointSizeAA = R300_POINTSIZE_MAX;
 342
 343         ctx->Const.MinLineWidth = 1.0;
 344         ctx->Const.MinLineWidthAA = 1.0;
 345         ctx->Const.MaxLineWidth = R300_LINESIZE_MAX;
 346         ctx->Const.MaxLineWidthAA = R300_LINESIZE_MAX;
 347
 348         /* Needs further modifications */
 349 #if 0
 350         ctx->Const.MaxArrayLockSize =
 351             ( /*512 */ RADEON_BUFFER_SIZE * 16 * 1024) / (4 * 4);
 352 #endif
 353
 354         ctx->Const.MaxDrawBuffers = 1;
 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
 486                 if (radeon->state.scissor.pClipRects) {
 487                         FREE(radeon->state.scissor.pClipRects);
 488                         radeon->state.scissor.pClipRects = NULL;
 489                 }
 490
 491                 r300DestroyCmdBuf(r300);
 492
 493                 radeonCleanupContext(&r300->radeon);
 494
 495
 496                 /* the memory manager might be accessed when Mesa frees the shared
 497                  * state, so don't destroy it earlier
 498                  */
 499
 500
 501                 FREE(r300);
 502         }
 503 }