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_mipmap_tree.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
  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_init_vtbl(radeonContextPtr radeon)
 213 {
 214    radeon->vtbl.get_lock = r300_get_lock;
 215    radeon->vtbl.update_viewport_offset = r300UpdateViewportOffset;
 216    radeon->vtbl.flush = r300_vtbl_flush;
 217    radeon->vtbl.set_all_dirty = r300_vtbl_set_all_dirty;
 218 }
 219
 220
 221 /* Create the device specific rendering context.
 222  */
 223 GLboolean r300CreateContext(const __GLcontextModes * glVisual,
 224                             __DRIcontextPrivate * driContextPriv,
 225                             void *sharedContextPrivate)
 226 {
 227         __DRIscreenPrivate *sPriv = driContextPriv->driScreenPriv;
 228         radeonScreenPtr screen = (radeonScreenPtr) (sPriv->private);
 229         struct dd_function_table functions;
 230         r300ContextPtr r300;
 231         GLcontext *ctx;
 232         int tcl_mode;
 233
 234         assert(glVisual);
 235         assert(driContextPriv);
 236         assert(screen);
 237
 238         /* Allocate the R300 context */
 239         r300 = (r300ContextPtr) CALLOC(sizeof(*r300));
 240         if (!r300)
 241                 return GL_FALSE;
 242
 243         if (!(screen->chip_flags & RADEON_CHIPSET_TCL))
 244                 hw_tcl_on = future_hw_tcl_on = 0;
 245
 246         r300_init_vtbl(&r300->radeon);
 247         /* Parse configuration files.
 248          * Do this here so that initialMaxAnisotropy is set before we create
 249          * the default textures.
 250          */
 251         driParseConfigFiles(&r300->radeon.optionCache, &screen->optionCache,
 252                             screen->driScreen->myNum, "r300");
 253         r300->initialMaxAnisotropy = driQueryOptionf(&r300->radeon.optionCache,
 254                                                      "def_max_anisotropy");
 255
 256         /* Init default driver functions then plug in our R300-specific functions
 257          * (the texture functions are especially important)
 258          */
 259         _mesa_init_driver_functions(&functions);
 260         r300InitIoctlFuncs(&functions);
 261         r300InitStateFuncs(&functions);
 262         r300InitTextureFuncs(&functions);
 263         r300InitShaderFuncs(&functions);
 264
 265         if (!radeonInitContext(&r300->radeon, &functions,
 266                                glVisual, driContextPriv,
 267                                sharedContextPrivate)) {
 268                 FREE(r300);
 269                 return GL_FALSE;
 270         }
 271
 272         /* Init r300 context data */
 273         r300->texture_depth = driQueryOptioni(&r300->radeon.optionCache,
 274                                               "texture_depth");
 275         if (r300->texture_depth == DRI_CONF_TEXTURE_DEPTH_FB)
 276                 r300->texture_depth = (screen->cpp == 4) ?
 277                     DRI_CONF_TEXTURE_DEPTH_32 : DRI_CONF_TEXTURE_DEPTH_16;
 278
 279         /* Set the maximum texture size small enough that we can guarentee that
 280          * all texture units can bind a maximal texture and have them both in
 281          * texturable memory at once.
 282          */
 283
 284         ctx = r300->radeon.glCtx;
 285
 286         ctx->Const.MaxTextureImageUnits =
 287             driQueryOptioni(&r300->radeon.optionCache, "texture_image_units");
 288         ctx->Const.MaxTextureCoordUnits =
 289             driQueryOptioni(&r300->radeon.optionCache, "texture_coord_units");
 290         ctx->Const.MaxTextureUnits =
 291             MIN2(ctx->Const.MaxTextureImageUnits,
 292                  ctx->Const.MaxTextureCoordUnits);
 293         ctx->Const.MaxTextureMaxAnisotropy = 16.0;
 294         ctx->Const.MaxTextureLodBias = 16.0;
 295
 296         if (screen->chip_family >= CHIP_FAMILY_RV515) {
 297             ctx->Const.MaxTextureLevels = 13;
 298             ctx->Const.MaxTextureRectSize = 4096;
 299         }
 300
 301         ctx->Const.MinPointSize = 1.0;
 302         ctx->Const.MinPointSizeAA = 1.0;
 303         ctx->Const.MaxPointSize = R300_POINTSIZE_MAX;
 304         ctx->Const.MaxPointSizeAA = R300_POINTSIZE_MAX;
 305
 306         ctx->Const.MinLineWidth = 1.0;
 307         ctx->Const.MinLineWidthAA = 1.0;
 308         ctx->Const.MaxLineWidth = R300_LINESIZE_MAX;
 309         ctx->Const.MaxLineWidthAA = R300_LINESIZE_MAX;
 310
 311         /* Needs further modifications */
 312 #if 0
 313         ctx->Const.MaxArrayLockSize =
 314             ( /*512 */ RADEON_BUFFER_SIZE * 16 * 1024) / (4 * 4);
 315 #endif
 316
 317         /* Initialize the software rasterizer and helper modules.
 318          */
 319         _swrast_CreateContext(ctx);
 320         _vbo_CreateContext(ctx);
 321         _tnl_CreateContext(ctx);
 322         _swsetup_CreateContext(ctx);
 323         _swsetup_Wakeup(ctx);
 324         _ae_create_context(ctx);
 325
 326         /* Install the customized pipeline:
 327          */
 328         _tnl_destroy_pipeline(ctx);
 329         _tnl_install_pipeline(ctx, r300_pipeline);
 330
 331         /* Try and keep materials and vertices separate:
 332          */
 333 /*      _tnl_isolate_materials(ctx, GL_TRUE); */
 334
 335         /* Configure swrast and TNL to match hardware characteristics:
 336          */
 337         _swrast_allow_pixel_fog(ctx, GL_FALSE);
 338         _swrast_allow_vertex_fog(ctx, GL_TRUE);
 339         _tnl_allow_pixel_fog(ctx, GL_FALSE);
 340         _tnl_allow_vertex_fog(ctx, GL_TRUE);
 341
 342         /* currently bogus data */
 343         if (screen->chip_flags & RADEON_CHIPSET_TCL) {
 344                 ctx->Const.VertexProgram.MaxInstructions = VSF_MAX_FRAGMENT_LENGTH / 4;
 345                 ctx->Const.VertexProgram.MaxNativeInstructions =
 346                   VSF_MAX_FRAGMENT_LENGTH / 4;
 347                 ctx->Const.VertexProgram.MaxNativeAttribs = 16; /* r420 */
 348                 ctx->Const.VertexProgram.MaxTemps = 32;
 349                 ctx->Const.VertexProgram.MaxNativeTemps =
 350                   /*VSF_MAX_FRAGMENT_TEMPS */ 32;
 351                 ctx->Const.VertexProgram.MaxNativeParameters = 256;     /* r420 */
 352                 ctx->Const.VertexProgram.MaxNativeAddressRegs = 1;
 353         }
 354
 355         ctx->Const.FragmentProgram.MaxNativeTemps = PFS_NUM_TEMP_REGS;
 356         ctx->Const.FragmentProgram.MaxNativeAttribs = 11;       /* copy i915... */
 357         ctx->Const.FragmentProgram.MaxNativeParameters = PFS_NUM_CONST_REGS;
 358         ctx->Const.FragmentProgram.MaxNativeAluInstructions = PFS_MAX_ALU_INST;
 359         ctx->Const.FragmentProgram.MaxNativeTexInstructions = PFS_MAX_TEX_INST;
 360         ctx->Const.FragmentProgram.MaxNativeInstructions =
 361             PFS_MAX_ALU_INST + PFS_MAX_TEX_INST;
 362         ctx->Const.FragmentProgram.MaxNativeTexIndirections =
 363             PFS_MAX_TEX_INDIRECT;
 364         ctx->Const.FragmentProgram.MaxNativeAddressRegs = 0;    /* and these are?? */
 365         ctx->VertexProgram._MaintainTnlProgram = GL_TRUE;
 366         ctx->FragmentProgram._MaintainTexEnvProgram = GL_TRUE;
 367
 368         driInitExtensions(ctx, card_extensions, GL_TRUE);
 369
 370         if (driQueryOptionb
 371             (&r300->radeon.optionCache, "disable_stencil_two_side"))
 372                 _mesa_disable_extension(ctx, "GL_EXT_stencil_two_side");
 373
 374         if (r300->radeon.glCtx->Mesa_DXTn
 375             && !driQueryOptionb(&r300->radeon.optionCache, "disable_s3tc")) {
 376                 _mesa_enable_extension(ctx, "GL_EXT_texture_compression_s3tc");
 377                 _mesa_enable_extension(ctx, "GL_S3_s3tc");
 378         } else
 379             if (driQueryOptionb(&r300->radeon.optionCache, "force_s3tc_enable"))
 380         {
 381                 _mesa_enable_extension(ctx, "GL_EXT_texture_compression_s3tc");
 382         }
 383
 384         r300->disable_lowimpact_fallback =
 385             driQueryOptionb(&r300->radeon.optionCache,
 386                             "disable_lowimpact_fallback");
 387
 388         radeonInitSpanFuncs(ctx);
 389         r300InitCmdBuf(r300);
 390         r300InitState(r300);
 391         if (!(screen->chip_flags & RADEON_CHIPSET_TCL))
 392                 r300InitSwtcl(ctx);
 393
 394         TNL_CONTEXT(ctx)->Driver.RunPipeline = r300RunPipeline;
 395
 396         tcl_mode = driQueryOptioni(&r300->radeon.optionCache, "tcl_mode");
 397         if (driQueryOptionb(&r300->radeon.optionCache, "no_rast")) {
 398                 fprintf(stderr, "disabling 3D acceleration\n");
 399 #if R200_MERGED
 400                 FALLBACK(&r300->radeon, RADEON_FALLBACK_DISABLE, 1);
 401 #endif
 402         }
 403         if (tcl_mode == DRI_CONF_TCL_SW ||
 404             !(r300->radeon.radeonScreen->chip_flags & RADEON_CHIPSET_TCL)) {
 405                 if (r300->radeon.radeonScreen->chip_flags & RADEON_CHIPSET_TCL) {
 406                         r300->radeon.radeonScreen->chip_flags &=
 407                             ~RADEON_CHIPSET_TCL;
 408                         fprintf(stderr, "Disabling HW TCL support\n");
 409                 }
 410                 TCL_FALLBACK(r300->radeon.glCtx,
 411                              RADEON_TCL_FALLBACK_TCL_DISABLE, 1);
 412         }
 413
 414         return GL_TRUE;
 415 }
 416
 417 /* Destroy the device specific context.
 418  */
 419 void r300DestroyContext(__DRIcontextPrivate * driContextPriv)
 420 {
 421         GET_CURRENT_CONTEXT(ctx);
 422         r300ContextPtr r300 = (r300ContextPtr) driContextPriv->driverPrivate;
 423         radeonContextPtr radeon = (radeonContextPtr) r300;
 424         radeonContextPtr current = ctx ? RADEON_CONTEXT(ctx) : NULL;
 425
 426         if (RADEON_DEBUG & DEBUG_DRI) {
 427                 fprintf(stderr, "Destroying context !\n");
 428         }
 429
 430         /* check if we're deleting the currently bound context */
 431         if (&r300->radeon == current) {
 432                 radeonFlush(r300->radeon.glCtx);
 433                 _mesa_make_current(NULL, NULL, NULL);
 434         }
 435
 436         /* Free r300 context resources */
 437         assert(r300);           /* should never be null */
 438
 439         if (r300) {
 440                 _swsetup_DestroyContext(r300->radeon.glCtx);
 441                 _tnl_DestroyContext(r300->radeon.glCtx);
 442                 _vbo_DestroyContext(r300->radeon.glCtx);
 443                 _swrast_DestroyContext(r300->radeon.glCtx);
 444
 445                 r300FlushCmdBuf(r300, __FUNCTION__);
 446                 r300DestroyCmdBuf(r300);
 447
 448                 if (radeon->state.scissor.pClipRects) {
 449                         FREE(radeon->state.scissor.pClipRects);
 450                         radeon->state.scissor.pClipRects = NULL;
 451                 }
 452
 453                 radeonCleanupContext(&r300->radeon);
 454
 455                 /* the memory manager might be accessed when Mesa frees the shared
 456                  * state, so don't destroy it earlier
 457                  */
 458
 459                 /* free the option cache */
 460                 driDestroyOptionCache(&r300->radeon.optionCache);
 461
 462                 FREE(r300);
 463         }
 464 }