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 /* Create the device specific rendering context.
 191  */
 192 GLboolean r300CreateContext(const __GLcontextModes * glVisual,
 193                             __DRIcontextPrivate * driContextPriv,
 194                             void *sharedContextPrivate)
 195 {
 196         __DRIscreenPrivate *sPriv = driContextPriv->driScreenPriv;
 197         radeonScreenPtr screen = (radeonScreenPtr) (sPriv->private);
 198         struct dd_function_table functions;
 199         r300ContextPtr r300;
 200         GLcontext *ctx;
 201         int tcl_mode;
 202
 203         assert(glVisual);
 204         assert(driContextPriv);
 205         assert(screen);
 206
 207         /* Allocate the R300 context */
 208         r300 = (r300ContextPtr) CALLOC(sizeof(*r300));
 209         if (!r300)
 210                 return GL_FALSE;
 211
 212         if (!(screen->chip_flags & RADEON_CHIPSET_TCL))
 213                 hw_tcl_on = future_hw_tcl_on = 0;
 214
 215         /* Parse configuration files.
 216          * Do this here so that initialMaxAnisotropy is set before we create
 217          * the default textures.
 218          */
 219         driParseConfigFiles(&r300->radeon.optionCache, &screen->optionCache,
 220                             screen->driScreen->myNum, "r300");
 221         r300->initialMaxAnisotropy = driQueryOptionf(&r300->radeon.optionCache,
 222                                                      "def_max_anisotropy");
 223
 224         /* Init default driver functions then plug in our R300-specific functions
 225          * (the texture functions are especially important)
 226          */
 227         _mesa_init_driver_functions(&functions);
 228         r300InitIoctlFuncs(&functions);
 229         r300InitStateFuncs(&functions);
 230         r300InitTextureFuncs(&functions);
 231         r300InitShaderFuncs(&functions);
 232
 233         if (!radeonInitContext(&r300->radeon, &functions,
 234                                glVisual, driContextPriv,
 235                                sharedContextPrivate)) {
 236                 FREE(r300);
 237                 return GL_FALSE;
 238         }
 239
 240         /* Init r300 context data */
 241         r300->texture_depth = driQueryOptioni(&r300->radeon.optionCache,
 242                                               "texture_depth");
 243         if (r300->texture_depth == DRI_CONF_TEXTURE_DEPTH_FB)
 244                 r300->texture_depth = (screen->cpp == 4) ?
 245                     DRI_CONF_TEXTURE_DEPTH_32 : DRI_CONF_TEXTURE_DEPTH_16;
 246
 247         /* Set the maximum texture size small enough that we can guarentee that
 248          * all texture units can bind a maximal texture and have them both in
 249          * texturable memory at once.
 250          */
 251
 252         ctx = r300->radeon.glCtx;
 253
 254         ctx->Const.MaxTextureImageUnits =
 255             driQueryOptioni(&r300->radeon.optionCache, "texture_image_units");
 256         ctx->Const.MaxTextureCoordUnits =
 257             driQueryOptioni(&r300->radeon.optionCache, "texture_coord_units");
 258         ctx->Const.MaxTextureUnits =
 259             MIN2(ctx->Const.MaxTextureImageUnits,
 260                  ctx->Const.MaxTextureCoordUnits);
 261         ctx->Const.MaxTextureMaxAnisotropy = 16.0;
 262         ctx->Const.MaxTextureLodBias = 16.0;
 263
 264         if (screen->chip_family >= CHIP_FAMILY_RV515) {
 265             ctx->Const.MaxTextureLevels = 13;
 266             ctx->Const.MaxTextureRectSize = 4096;
 267         }
 268
 269         ctx->Const.MinPointSize = 1.0;
 270         ctx->Const.MinPointSizeAA = 1.0;
 271         ctx->Const.MaxPointSize = R300_POINTSIZE_MAX;
 272         ctx->Const.MaxPointSizeAA = R300_POINTSIZE_MAX;
 273
 274         ctx->Const.MinLineWidth = 1.0;
 275         ctx->Const.MinLineWidthAA = 1.0;
 276         ctx->Const.MaxLineWidth = R300_LINESIZE_MAX;
 277         ctx->Const.MaxLineWidthAA = R300_LINESIZE_MAX;
 278
 279         /* Needs further modifications */
 280 #if 0
 281         ctx->Const.MaxArrayLockSize =
 282             ( /*512 */ RADEON_BUFFER_SIZE * 16 * 1024) / (4 * 4);
 283 #endif
 284
 285         /* Initialize the software rasterizer and helper modules.
 286          */
 287         _swrast_CreateContext(ctx);
 288         _vbo_CreateContext(ctx);
 289         _tnl_CreateContext(ctx);
 290         _swsetup_CreateContext(ctx);
 291         _swsetup_Wakeup(ctx);
 292         _ae_create_context(ctx);
 293
 294         /* Install the customized pipeline:
 295          */
 296         _tnl_destroy_pipeline(ctx);
 297         _tnl_install_pipeline(ctx, r300_pipeline);
 298
 299         /* Try and keep materials and vertices separate:
 300          */
 301 /*      _tnl_isolate_materials(ctx, GL_TRUE); */
 302
 303         /* Configure swrast and TNL to match hardware characteristics:
 304          */
 305         _swrast_allow_pixel_fog(ctx, GL_FALSE);
 306         _swrast_allow_vertex_fog(ctx, GL_TRUE);
 307         _tnl_allow_pixel_fog(ctx, GL_FALSE);
 308         _tnl_allow_vertex_fog(ctx, GL_TRUE);
 309
 310         /* currently bogus data */
 311         if (screen->chip_flags & RADEON_CHIPSET_TCL) {
 312                 ctx->Const.VertexProgram.MaxInstructions = VSF_MAX_FRAGMENT_LENGTH / 4;
 313                 ctx->Const.VertexProgram.MaxNativeInstructions =
 314                   VSF_MAX_FRAGMENT_LENGTH / 4;
 315                 ctx->Const.VertexProgram.MaxNativeAttribs = 16; /* r420 */
 316                 ctx->Const.VertexProgram.MaxTemps = 32;
 317                 ctx->Const.VertexProgram.MaxNativeTemps =
 318                   /*VSF_MAX_FRAGMENT_TEMPS */ 32;
 319                 ctx->Const.VertexProgram.MaxNativeParameters = 256;     /* r420 */
 320                 ctx->Const.VertexProgram.MaxNativeAddressRegs = 1;
 321         }
 322
 323         ctx->Const.FragmentProgram.MaxNativeTemps = PFS_NUM_TEMP_REGS;
 324         ctx->Const.FragmentProgram.MaxNativeAttribs = 11;       /* copy i915... */
 325         ctx->Const.FragmentProgram.MaxNativeParameters = PFS_NUM_CONST_REGS;
 326         ctx->Const.FragmentProgram.MaxNativeAluInstructions = PFS_MAX_ALU_INST;
 327         ctx->Const.FragmentProgram.MaxNativeTexInstructions = PFS_MAX_TEX_INST;
 328         ctx->Const.FragmentProgram.MaxNativeInstructions =
 329             PFS_MAX_ALU_INST + PFS_MAX_TEX_INST;
 330         ctx->Const.FragmentProgram.MaxNativeTexIndirections =
 331             PFS_MAX_TEX_INDIRECT;
 332         ctx->Const.FragmentProgram.MaxNativeAddressRegs = 0;    /* and these are?? */
 333         ctx->VertexProgram._MaintainTnlProgram = GL_TRUE;
 334         ctx->FragmentProgram._MaintainTexEnvProgram = GL_TRUE;
 335
 336         driInitExtensions(ctx, card_extensions, GL_TRUE);
 337
 338         if (driQueryOptionb
 339             (&r300->radeon.optionCache, "disable_stencil_two_side"))
 340                 _mesa_disable_extension(ctx, "GL_EXT_stencil_two_side");
 341
 342         if (r300->radeon.glCtx->Mesa_DXTn
 343             && !driQueryOptionb(&r300->radeon.optionCache, "disable_s3tc")) {
 344                 _mesa_enable_extension(ctx, "GL_EXT_texture_compression_s3tc");
 345                 _mesa_enable_extension(ctx, "GL_S3_s3tc");
 346         } else
 347             if (driQueryOptionb(&r300->radeon.optionCache, "force_s3tc_enable"))
 348         {
 349                 _mesa_enable_extension(ctx, "GL_EXT_texture_compression_s3tc");
 350         }
 351
 352         r300->disable_lowimpact_fallback =
 353             driQueryOptionb(&r300->radeon.optionCache,
 354                             "disable_lowimpact_fallback");
 355
 356         radeonInitSpanFuncs(ctx);
 357         r300InitCmdBuf(r300);
 358         r300InitState(r300);
 359         if (!(screen->chip_flags & RADEON_CHIPSET_TCL))
 360                 r300InitSwtcl(ctx);
 361
 362         TNL_CONTEXT(ctx)->Driver.RunPipeline = r300RunPipeline;
 363
 364         tcl_mode = driQueryOptioni(&r300->radeon.optionCache, "tcl_mode");
 365         if (driQueryOptionb(&r300->radeon.optionCache, "no_rast")) {
 366                 fprintf(stderr, "disabling 3D acceleration\n");
 367 #if R200_MERGED
 368                 FALLBACK(&r300->radeon, RADEON_FALLBACK_DISABLE, 1);
 369 #endif
 370         }
 371         if (tcl_mode == DRI_CONF_TCL_SW ||
 372             !(r300->radeon.radeonScreen->chip_flags & RADEON_CHIPSET_TCL)) {
 373                 if (r300->radeon.radeonScreen->chip_flags & RADEON_CHIPSET_TCL) {
 374                         r300->radeon.radeonScreen->chip_flags &=
 375                             ~RADEON_CHIPSET_TCL;
 376                         fprintf(stderr, "Disabling HW TCL support\n");
 377                 }
 378                 TCL_FALLBACK(r300->radeon.glCtx,
 379                              RADEON_TCL_FALLBACK_TCL_DISABLE, 1);
 380         }
 381
 382         return GL_TRUE;
 383 }
 384
 385 /* Destroy the device specific context.
 386  */
 387 void r300DestroyContext(__DRIcontextPrivate * driContextPriv)
 388 {
 389         GET_CURRENT_CONTEXT(ctx);
 390         r300ContextPtr r300 = (r300ContextPtr) driContextPriv->driverPrivate;
 391         radeonContextPtr radeon = (radeonContextPtr) r300;
 392         radeonContextPtr current = ctx ? RADEON_CONTEXT(ctx) : NULL;
 393
 394         if (RADEON_DEBUG & DEBUG_DRI) {
 395                 fprintf(stderr, "Destroying context !\n");
 396         }
 397
 398         /* check if we're deleting the currently bound context */
 399         if (&r300->radeon == current) {
 400                 radeonFlush(r300->radeon.glCtx);
 401                 _mesa_make_current(NULL, NULL, NULL);
 402         }
 403
 404         /* Free r300 context resources */
 405         assert(r300);           /* should never be null */
 406
 407         if (r300) {
 408                 _swsetup_DestroyContext(r300->radeon.glCtx);
 409                 _tnl_DestroyContext(r300->radeon.glCtx);
 410                 _vbo_DestroyContext(r300->radeon.glCtx);
 411                 _swrast_DestroyContext(r300->radeon.glCtx);
 412
 413                 r300FlushCmdBuf(r300, __FUNCTION__);
 414                 r300DestroyCmdBuf(r300);
 415
 416                 if (radeon->state.scissor.pClipRects) {
 417                         FREE(radeon->state.scissor.pClipRects);
 418                         radeon->state.scissor.pClipRects = NULL;
 419                 }
 420
 421                 radeonCleanupContext(&r300->radeon);
 422
 423                 /* the memory manager might be accessed when Mesa frees the shared
 424                  * state, so don't destroy it earlier
 425                  */
 426
 427                 /* free the option cache */
 428                 driDestroyOptionCache(&r300->radeon.optionCache);
 429
 430                 FREE(r300);
 431         }
 432 }