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_render.h"
  68 #include "r300_swtcl.h"
  69 #include "radeon_bocs_wrapper.h"
  70
  71
  72 #include "vblank.h"
  73 #include "utils.h"
  74 #include "xmlpool.h"            /* for symbolic values of enum-type options */
  75
  76 #define need_GL_VERSION_2_0
  77 #define need_GL_ARB_point_parameters
  78 #define need_GL_ARB_vertex_program
  79 #define need_GL_EXT_blend_equation_separate
  80 #define need_GL_EXT_blend_func_separate
  81 #define need_GL_EXT_blend_minmax
  82 #define need_GL_EXT_framebuffer_object
  83 #define need_GL_EXT_fog_coord
  84 #define need_GL_EXT_gpu_program_parameters
  85 #define need_GL_EXT_secondary_color
  86 #define need_GL_EXT_stencil_two_side
  87 #define need_GL_ATI_separate_stencil
  88 #define need_GL_NV_vertex_program
  89
  90 #include "extension_helper.h"
  91
  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_packed_depth_stencil",       NULL},
 114   {"GL_EXT_fog_coord",                  GL_EXT_fog_coord_functions },
 115   {"GL_EXT_gpu_program_parameters",     GL_EXT_gpu_program_parameters_functions},
 116   {"GL_EXT_secondary_color",            GL_EXT_secondary_color_functions},
 117   {"GL_EXT_shadow_funcs",               NULL},
 118   {"GL_EXT_stencil_two_side",           GL_EXT_stencil_two_side_functions},
 119   {"GL_EXT_stencil_wrap",               NULL},
 120   {"GL_EXT_texture_edge_clamp",         NULL},
 121   {"GL_EXT_texture_env_combine",        NULL},
 122   {"GL_EXT_texture_env_dot3",           NULL},
 123   {"GL_EXT_texture_filter_anisotropic", NULL},
 124   {"GL_EXT_texture_lod_bias",           NULL},
 125   {"GL_EXT_texture_mirror_clamp",       NULL},
 126   {"GL_EXT_texture_rectangle",          NULL},
 127   {"GL_EXT_texture_sRGB",               NULL},
 128   {"GL_EXT_vertex_array_bgra",          NULL},
 129   {"GL_ATI_separate_stencil",           GL_ATI_separate_stencil_functions},
 130   {"GL_ATI_texture_env_combine3",       NULL},
 131   {"GL_ATI_texture_mirror_once",        NULL},
 132   {"GL_MESA_pack_invert",               NULL},
 133   {"GL_MESA_ycbcr_texture",             NULL},
 134   {"GL_MESAX_texture_float",            NULL},
 135   {"GL_NV_blend_square",                NULL},
 136   {"GL_NV_vertex_program",              GL_NV_vertex_program_functions},
 137   {"GL_SGIS_generate_mipmap",           NULL},
 138   {NULL,                                NULL}
 139   /* *INDENT-ON* */
 140 };
 141
 142
 143 const struct dri_extension mm_extensions[] = {
 144   { "GL_EXT_framebuffer_object", GL_EXT_framebuffer_object_functions },
 145   { NULL, NULL }
 146 };
 147
 148 /**
 149  * The GL 2.0 functions are needed to make display lists work with
 150  * functions added by GL_ATI_separate_stencil.
 151  */
 152 const struct dri_extension gl_20_extension[] = {
 153   {"GL_VERSION_2_0",                    GL_VERSION_2_0_functions },
 154 };
 155
 156 static const struct tnl_pipeline_stage *r300_pipeline[] = {
 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_point_attenuation_stage,
 167         &_tnl_vertex_program_stage,
 168
 169         /* Try again to go to tcl?
 170          *     - no good for asymmetric-twoside (do with multipass)
 171          *     - no good for asymmetric-unfilled (do with multipass)
 172          *     - good for material
 173          *     - good for texgen
 174          *     - need to manipulate a bit of state
 175          *
 176          * - worth it/not worth it?
 177          */
 178
 179         /* Else do them here.
 180          */
 181         &_r300_render_stage,
 182         &_tnl_render_stage,     /* FALLBACK  */
 183         0,
 184 };
 185
 186 static void r300_get_lock(radeonContextPtr rmesa)
 187 {
 188         drm_radeon_sarea_t *sarea = rmesa->sarea;
 189
 190         if (sarea->ctx_owner != rmesa->dri.hwContext) {
 191                 sarea->ctx_owner = rmesa->dri.hwContext;
 192                 if (!rmesa->radeonScreen->kernel_mm)
 193                         radeon_bo_legacy_texture_age(rmesa->radeonScreen->bom);
 194         }
 195 }
 196
 197 static void r300_vtbl_emit_cs_header(struct radeon_cs *cs, radeonContextPtr rmesa)
 198 {
 199     /* please flush pipe do all pending work */
 200     radeon_cs_write_dword(cs, cmdpacket0(rmesa->radeonScreen,
 201                                   R300_SC_SCREENDOOR, 1));
 202     radeon_cs_write_dword(cs, 0x0);
 203     radeon_cs_write_dword(cs, cmdpacket0(rmesa->radeonScreen,
 204                                   R300_SC_SCREENDOOR, 1));
 205     radeon_cs_write_dword(cs, 0x00FFFFFF);
 206     radeon_cs_write_dword(cs, cmdpacket0(rmesa->radeonScreen,
 207                                   R300_SC_HYPERZ, 1));
 208     radeon_cs_write_dword(cs, 0x0);
 209     radeon_cs_write_dword(cs, cmdpacket0(rmesa->radeonScreen,
 210                                   R300_US_CONFIG, 1));
 211     radeon_cs_write_dword(cs, 0x0);
 212     radeon_cs_write_dword(cs, cmdpacket0(rmesa->radeonScreen,
 213                                   R300_ZB_CNTL, 1));
 214     radeon_cs_write_dword(cs, 0x0);
 215     radeon_cs_write_dword(cs, cmdwait(rmesa->radeonScreen, R300_WAIT_3D));
 216     radeon_cs_write_dword(cs, cmdpacket0(rmesa->radeonScreen,
 217                                   R300_RB3D_DSTCACHE_CTLSTAT, 1));
 218     radeon_cs_write_dword(cs, R300_RB3D_DSTCACHE_CTLSTAT_DC_FLUSH_FLUSH_DIRTY_3D);
 219     radeon_cs_write_dword(cs, cmdpacket0(rmesa->radeonScreen,
 220                                   R300_ZB_ZCACHE_CTLSTAT, 1));
 221     radeon_cs_write_dword(cs, R300_ZB_ZCACHE_CTLSTAT_ZC_FLUSH_FLUSH_AND_FREE);
 222     radeon_cs_write_dword(cs, cmdwait(rmesa->radeonScreen,
 223                                R300_WAIT_3D | R300_WAIT_3D_CLEAN));
 224 }
 225
 226 static void r300_vtbl_pre_emit_atoms(radeonContextPtr radeon)
 227 {
 228         r300ContextPtr r300 = (r300ContextPtr)radeon;
 229         BATCH_LOCALS(radeon);
 230
 231         r300->vap_flush_needed = GL_TRUE;
 232
 233         cp_wait(radeon, R300_WAIT_3D | R300_WAIT_3D_CLEAN);
 234         BEGIN_BATCH_NO_AUTOSTATE(2);
 235         OUT_BATCH_REGVAL(R300_TX_INVALTAGS, R300_TX_FLUSH);
 236         END_BATCH();
 237         end_3d(radeon);
 238 }
 239
 240 static void r300_fallback(GLcontext *ctx, GLuint bit, GLboolean mode)
 241 {
 242         r300ContextPtr r300 = R300_CONTEXT(ctx);
 243         if (mode)
 244                 r300->radeon.Fallback |= bit;
 245         else
 246                 r300->radeon.Fallback &= ~bit;
 247 }
 248
 249 static void r300_init_vtbl(radeonContextPtr radeon)
 250 {
 251         radeon->vtbl.get_lock = r300_get_lock;
 252         radeon->vtbl.update_viewport_offset = r300UpdateViewportOffset;
 253         radeon->vtbl.emit_cs_header = r300_vtbl_emit_cs_header;
 254         radeon->vtbl.swtcl_flush = r300_swtcl_flush;
 255         radeon->vtbl.pre_emit_atoms = r300_vtbl_pre_emit_atoms;
 256         radeon->vtbl.fallback = r300_fallback;
 257 }
 258
 259 static void r300InitConstValues(GLcontext *ctx, radeonScreenPtr screen)
 260 {
 261         r300ContextPtr r300 = R300_CONTEXT(ctx);
 262
 263         ctx->Const.MaxTextureImageUnits =
 264             driQueryOptioni(&r300->radeon.optionCache, "texture_image_units");
 265         ctx->Const.MaxTextureCoordUnits =
 266             driQueryOptioni(&r300->radeon.optionCache, "texture_coord_units");
 267         ctx->Const.MaxTextureUnits = MIN2(ctx->Const.MaxTextureImageUnits,
 268                  ctx->Const.MaxTextureCoordUnits);
 269
 270         ctx->Const.MaxTextureMaxAnisotropy = 16.0;
 271         ctx->Const.MaxTextureLodBias = 16.0;
 272
 273         if (screen->chip_family >= CHIP_FAMILY_RV515) {
 274                 ctx->Const.MaxTextureLevels = 13;
 275                 ctx->Const.MaxCubeTextureLevels = 13;
 276                 ctx->Const.MaxTextureRectSize = 4096;
 277         }
 278         else {
 279                 ctx->Const.MaxTextureLevels = 12;
 280                 ctx->Const.MaxCubeTextureLevels = 12;
 281                 ctx->Const.MaxTextureRectSize = 2048;
 282         }
 283
 284         ctx->Const.MinPointSize = 1.0;
 285         ctx->Const.MinPointSizeAA = 1.0;
 286         ctx->Const.MaxPointSize = R300_POINTSIZE_MAX;
 287         ctx->Const.MaxPointSizeAA = R300_POINTSIZE_MAX;
 288
 289         ctx->Const.MinLineWidth = 1.0;
 290         ctx->Const.MinLineWidthAA = 1.0;
 291         ctx->Const.MaxLineWidth = R300_LINESIZE_MAX;
 292         ctx->Const.MaxLineWidthAA = R300_LINESIZE_MAX;
 293
 294         ctx->Const.MaxDrawBuffers = 1;
 295
 296         /* currently bogus data */
 297         if (r300->options.hw_tcl_enabled) {
 298                 ctx->Const.VertexProgram.MaxInstructions = VSF_MAX_FRAGMENT_LENGTH / 4;
 299                 ctx->Const.VertexProgram.MaxNativeInstructions =
 300                   VSF_MAX_FRAGMENT_LENGTH / 4;
 301                 ctx->Const.VertexProgram.MaxNativeAttribs = 16; /* r420 */
 302                 ctx->Const.VertexProgram.MaxTemps = 32;
 303                 ctx->Const.VertexProgram.MaxNativeTemps =
 304                   /*VSF_MAX_FRAGMENT_TEMPS */ 32;
 305                 ctx->Const.VertexProgram.MaxNativeParameters = 256;     /* r420 */
 306                 ctx->Const.VertexProgram.MaxNativeAddressRegs = 1;
 307         }
 308
 309         if (screen->chip_family >= CHIP_FAMILY_RV515) {
 310                 ctx->Const.FragmentProgram.MaxNativeTemps = R500_PFS_NUM_TEMP_REGS;
 311                 ctx->Const.FragmentProgram.MaxNativeAttribs = 11;       /* copy i915... */
 312                 ctx->Const.FragmentProgram.MaxNativeParameters = R500_PFS_NUM_CONST_REGS;
 313                 ctx->Const.FragmentProgram.MaxNativeAluInstructions = R500_PFS_MAX_INST;
 314                 ctx->Const.FragmentProgram.MaxNativeTexInstructions = R500_PFS_MAX_INST;
 315                 ctx->Const.FragmentProgram.MaxNativeInstructions = R500_PFS_MAX_INST;
 316                 ctx->Const.FragmentProgram.MaxNativeTexIndirections = R500_PFS_MAX_INST;
 317                 ctx->Const.FragmentProgram.MaxNativeAddressRegs = 0;
 318         } else {
 319                 ctx->Const.FragmentProgram.MaxNativeTemps = R300_PFS_NUM_TEMP_REGS;
 320                 ctx->Const.FragmentProgram.MaxNativeAttribs = 11;       /* copy i915... */
 321                 ctx->Const.FragmentProgram.MaxNativeParameters = R300_PFS_NUM_CONST_REGS;
 322                 ctx->Const.FragmentProgram.MaxNativeAluInstructions = R300_PFS_MAX_ALU_INST;
 323                 ctx->Const.FragmentProgram.MaxNativeTexInstructions = R300_PFS_MAX_TEX_INST;
 324                 ctx->Const.FragmentProgram.MaxNativeInstructions = R300_PFS_MAX_ALU_INST + R300_PFS_MAX_TEX_INST;
 325                 ctx->Const.FragmentProgram.MaxNativeTexIndirections = R300_PFS_MAX_TEX_INDIRECT;
 326                 ctx->Const.FragmentProgram.MaxNativeAddressRegs = 0;
 327         }
 328 }
 329
 330 static void r300ParseOptions(r300ContextPtr r300, radeonScreenPtr screen)
 331 {
 332         struct r300_options options = { 0 };
 333
 334         driParseConfigFiles(&r300->radeon.optionCache, &screen->optionCache,
 335                             screen->driScreen->myNum, "r300");
 336
 337         r300->radeon.initialMaxAnisotropy = driQueryOptionf(&r300->radeon.optionCache, "def_max_anisotropy");
 338
 339         options.stencil_two_side_disabled = driQueryOptionb(&r300->radeon.optionCache, "disable_stencil_two_side");
 340         options.s3tc_force_enabled = driQueryOptionb(&r300->radeon.optionCache, "force_s3tc_enable");
 341         options.s3tc_force_disabled = driQueryOptionb(&r300->radeon.optionCache, "disable_s3tc");
 342
 343         if (!(screen->chip_flags & RADEON_CHIPSET_TCL) || driQueryOptioni(&r300->radeon.optionCache, "tcl_mode") == DRI_CONF_TCL_SW)
 344                 options.hw_tcl_enabled = 0;
 345         else
 346                 options.hw_tcl_enabled = 1;
 347
 348         options.conformance_mode = !driQueryOptionb(&r300->radeon.optionCache, "disable_lowimpact_fallback");
 349
 350         r300->options = options;
 351 }
 352
 353 static void r300InitGLExtensions(GLcontext *ctx)
 354 {
 355         r300ContextPtr r300 = R300_CONTEXT(ctx);
 356
 357         driInitExtensions(ctx, card_extensions, GL_TRUE);
 358         if (r300->radeon.radeonScreen->kernel_mm)
 359                 driInitExtensions(ctx, mm_extensions, GL_FALSE);
 360
 361         if (r300->options.stencil_two_side_disabled)
 362                 _mesa_disable_extension(ctx, "GL_EXT_stencil_two_side");
 363
 364         if (ctx->Mesa_DXTn && !r300->options.s3tc_force_enabled) {
 365                 _mesa_enable_extension(ctx, "GL_EXT_texture_compression_s3tc");
 366                 _mesa_enable_extension(ctx, "GL_S3_s3tc");
 367         } else if (r300->options.s3tc_force_disabled) {
 368                 _mesa_disable_extension(ctx, "GL_EXT_texture_compression_s3tc");
 369         }
 370 }
 371
 372 /* Create the device specific rendering context.
 373  */
 374 GLboolean r300CreateContext(const __GLcontextModes * glVisual,
 375                             __DRIcontextPrivate * driContextPriv,
 376                             void *sharedContextPrivate)
 377 {
 378         __DRIscreenPrivate *sPriv = driContextPriv->driScreenPriv;
 379         radeonScreenPtr screen = (radeonScreenPtr) (sPriv->private);
 380         struct dd_function_table functions;
 381         r300ContextPtr r300;
 382         GLcontext *ctx;
 383
 384         assert(glVisual);
 385         assert(driContextPriv);
 386         assert(screen);
 387
 388         r300 = (r300ContextPtr) CALLOC(sizeof(*r300));
 389         if (!r300)
 390                 return GL_FALSE;
 391
 392         r300ParseOptions(r300, screen);
 393
 394         r300_init_vtbl(&r300->radeon);
 395
 396         _mesa_init_driver_functions(&functions);
 397         r300InitIoctlFuncs(&functions);
 398         r300InitStateFuncs(&functions);
 399         r300InitTextureFuncs(&functions);
 400         r300InitShaderFuncs(&functions);
 401
 402         if (!radeonInitContext(&r300->radeon, &functions,
 403                                glVisual, driContextPriv,
 404                                sharedContextPrivate)) {
 405                 FREE(r300);
 406                 return GL_FALSE;
 407         }
 408
 409         ctx = r300->radeon.glCtx;
 410
 411         r300->fallback = 0;
 412         if (r300->options.hw_tcl_enabled)
 413                 ctx->VertexProgram._MaintainTnlProgram = GL_TRUE;
 414
 415         ctx->FragmentProgram._MaintainTexEnvProgram = GL_TRUE;
 416
 417         r300InitConstValues(ctx, screen);
 418
 419         _mesa_set_mvp_with_dp4( ctx, GL_TRUE );
 420
 421         /* Initialize the software rasterizer and helper modules.
 422          */
 423         _swrast_CreateContext(ctx);
 424         _vbo_CreateContext(ctx);
 425         _tnl_CreateContext(ctx);
 426         _swsetup_CreateContext(ctx);
 427         _swsetup_Wakeup(ctx);
 428
 429         /* Install the customized pipeline:
 430          */
 431         _tnl_destroy_pipeline(ctx);
 432         _tnl_install_pipeline(ctx, r300_pipeline);
 433         TNL_CONTEXT(ctx)->Driver.RunPipeline = _tnl_run_pipeline;
 434
 435         /* Configure swrast and TNL to match hardware characteristics:
 436          */
 437         _swrast_allow_pixel_fog(ctx, GL_FALSE);
 438         _swrast_allow_vertex_fog(ctx, GL_TRUE);
 439         _tnl_allow_pixel_fog(ctx, GL_FALSE);
 440         _tnl_allow_vertex_fog(ctx, GL_TRUE);
 441
 442         if (r300->options.hw_tcl_enabled) {
 443                 r300InitDraw(ctx);
 444         } else {
 445                 r300InitSwtcl(ctx);
 446         }
 447
 448         radeon_fbo_init(&r300->radeon);
 449         radeonInitSpanFuncs( ctx );
 450         r300InitCmdBuf(r300);
 451         r300InitState(r300);
 452         r300InitShaderFunctions(r300);
 453
 454         if (screen->chip_family == CHIP_FAMILY_RS600 || screen->chip_family == CHIP_FAMILY_RS690 ||
 455                 screen->chip_family == CHIP_FAMILY_RS740) {
 456                 r300->radeon.texture_row_align = 64;
 457         }
 458
 459         r300InitGLExtensions(ctx);
 460
 461         return GL_TRUE;
 462 }
 463