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         else
 276                 ctx->Const.MaxTextureLevels = 12;
 277
 278         ctx->Const.MinPointSize = 1.0;
 279         ctx->Const.MinPointSizeAA = 1.0;
 280         ctx->Const.MaxPointSize = R300_POINTSIZE_MAX;
 281         ctx->Const.MaxPointSizeAA = R300_POINTSIZE_MAX;
 282
 283         ctx->Const.MinLineWidth = 1.0;
 284         ctx->Const.MinLineWidthAA = 1.0;
 285         ctx->Const.MaxLineWidth = R300_LINESIZE_MAX;
 286         ctx->Const.MaxLineWidthAA = R300_LINESIZE_MAX;
 287
 288         ctx->Const.MaxDrawBuffers = 1;
 289
 290         /* currently bogus data */
 291         if (r300->options.hw_tcl_enabled) {
 292                 ctx->Const.VertexProgram.MaxInstructions = VSF_MAX_FRAGMENT_LENGTH / 4;
 293                 ctx->Const.VertexProgram.MaxNativeInstructions =
 294                   VSF_MAX_FRAGMENT_LENGTH / 4;
 295                 ctx->Const.VertexProgram.MaxNativeAttribs = 16; /* r420 */
 296                 ctx->Const.VertexProgram.MaxTemps = 32;
 297                 ctx->Const.VertexProgram.MaxNativeTemps =
 298                   /*VSF_MAX_FRAGMENT_TEMPS */ 32;
 299                 ctx->Const.VertexProgram.MaxNativeParameters = 256;     /* r420 */
 300                 ctx->Const.VertexProgram.MaxNativeAddressRegs = 1;
 301         }
 302
 303         if (screen->chip_family >= CHIP_FAMILY_RV515) {
 304                 ctx->Const.FragmentProgram.MaxNativeTemps = R500_PFS_NUM_TEMP_REGS;
 305                 ctx->Const.FragmentProgram.MaxNativeAttribs = 11;       /* copy i915... */
 306                 ctx->Const.FragmentProgram.MaxNativeParameters = R500_PFS_NUM_CONST_REGS;
 307                 ctx->Const.FragmentProgram.MaxNativeAluInstructions = R500_PFS_MAX_INST;
 308                 ctx->Const.FragmentProgram.MaxNativeTexInstructions = R500_PFS_MAX_INST;
 309                 ctx->Const.FragmentProgram.MaxNativeInstructions = R500_PFS_MAX_INST;
 310                 ctx->Const.FragmentProgram.MaxNativeTexIndirections = R500_PFS_MAX_INST;
 311                 ctx->Const.FragmentProgram.MaxNativeAddressRegs = 0;
 312         } else {
 313                 ctx->Const.FragmentProgram.MaxNativeTemps = R300_PFS_NUM_TEMP_REGS;
 314                 ctx->Const.FragmentProgram.MaxNativeAttribs = 11;       /* copy i915... */
 315                 ctx->Const.FragmentProgram.MaxNativeParameters = R300_PFS_NUM_CONST_REGS;
 316                 ctx->Const.FragmentProgram.MaxNativeAluInstructions = R300_PFS_MAX_ALU_INST;
 317                 ctx->Const.FragmentProgram.MaxNativeTexInstructions = R300_PFS_MAX_TEX_INST;
 318                 ctx->Const.FragmentProgram.MaxNativeInstructions = R300_PFS_MAX_ALU_INST + R300_PFS_MAX_TEX_INST;
 319                 ctx->Const.FragmentProgram.MaxNativeTexIndirections = R300_PFS_MAX_TEX_INDIRECT;
 320                 ctx->Const.FragmentProgram.MaxNativeAddressRegs = 0;
 321         }
 322 }
 323
 324 static void r300ParseOptions(r300ContextPtr r300, radeonScreenPtr screen)
 325 {
 326         struct r300_options options = { 0 };
 327
 328         driParseConfigFiles(&r300->radeon.optionCache, &screen->optionCache,
 329                             screen->driScreen->myNum, "r300");
 330
 331         r300->radeon.initialMaxAnisotropy = driQueryOptionf(&r300->radeon.optionCache, "def_max_anisotropy");
 332
 333         options.stencil_two_side_disabled = driQueryOptionb(&r300->radeon.optionCache, "disable_stencil_two_side");
 334         options.s3tc_force_enabled = driQueryOptionb(&r300->radeon.optionCache, "force_s3tc_enable");
 335         options.s3tc_force_disabled = driQueryOptionb(&r300->radeon.optionCache, "disable_s3tc");
 336
 337         if (!(screen->chip_flags & RADEON_CHIPSET_TCL) || driQueryOptioni(&r300->radeon.optionCache, "tcl_mode") == DRI_CONF_TCL_SW)
 338                 options.hw_tcl_enabled = 0;
 339         else
 340                 options.hw_tcl_enabled = 1;
 341
 342         options.conformance_mode = !driQueryOptionb(&r300->radeon.optionCache, "disable_lowimpact_fallback");
 343
 344         r300->options = options;
 345 }
 346
 347 static void r300InitGLExtensions(GLcontext *ctx)
 348 {
 349         r300ContextPtr r300 = R300_CONTEXT(ctx);
 350
 351         driInitExtensions(ctx, card_extensions, GL_TRUE);
 352         if (r300->radeon.radeonScreen->kernel_mm)
 353                 driInitExtensions(ctx, mm_extensions, GL_FALSE);
 354
 355         if (r300->options.stencil_two_side_disabled)
 356                 _mesa_disable_extension(ctx, "GL_EXT_stencil_two_side");
 357
 358         if (ctx->Mesa_DXTn && !r300->options.s3tc_force_enabled) {
 359                 _mesa_enable_extension(ctx, "GL_EXT_texture_compression_s3tc");
 360                 _mesa_enable_extension(ctx, "GL_S3_s3tc");
 361         } else if (r300->options.s3tc_force_disabled) {
 362                 _mesa_disable_extension(ctx, "GL_EXT_texture_compression_s3tc");
 363         }
 364 }
 365
 366 /* Create the device specific rendering context.
 367  */
 368 GLboolean r300CreateContext(const __GLcontextModes * glVisual,
 369                             __DRIcontextPrivate * driContextPriv,
 370                             void *sharedContextPrivate)
 371 {
 372         __DRIscreenPrivate *sPriv = driContextPriv->driScreenPriv;
 373         radeonScreenPtr screen = (radeonScreenPtr) (sPriv->private);
 374         struct dd_function_table functions;
 375         r300ContextPtr r300;
 376         GLcontext *ctx;
 377
 378         assert(glVisual);
 379         assert(driContextPriv);
 380         assert(screen);
 381
 382         r300 = (r300ContextPtr) CALLOC(sizeof(*r300));
 383         if (!r300)
 384                 return GL_FALSE;
 385
 386         r300ParseOptions(r300, screen);
 387
 388         r300_init_vtbl(&r300->radeon);
 389
 390         _mesa_init_driver_functions(&functions);
 391         r300InitIoctlFuncs(&functions);
 392         r300InitStateFuncs(&functions);
 393         r300InitTextureFuncs(&functions);
 394         r300InitShaderFuncs(&functions);
 395
 396         if (!radeonInitContext(&r300->radeon, &functions,
 397                                glVisual, driContextPriv,
 398                                sharedContextPrivate)) {
 399                 FREE(r300);
 400                 return GL_FALSE;
 401         }
 402
 403         ctx = r300->radeon.glCtx;
 404
 405         r300->fallback = 0;
 406         if (r300->options.hw_tcl_enabled)
 407                 ctx->VertexProgram._MaintainTnlProgram = GL_TRUE;
 408
 409         ctx->FragmentProgram._MaintainTexEnvProgram = GL_TRUE;
 410
 411         r300InitConstValues(ctx, screen);
 412
 413         /* Initialize the software rasterizer and helper modules.
 414          */
 415         _swrast_CreateContext(ctx);
 416         _vbo_CreateContext(ctx);
 417         _tnl_CreateContext(ctx);
 418         _swsetup_CreateContext(ctx);
 419         _swsetup_Wakeup(ctx);
 420
 421         /* Install the customized pipeline:
 422          */
 423         _tnl_destroy_pipeline(ctx);
 424         _tnl_install_pipeline(ctx, r300_pipeline);
 425         TNL_CONTEXT(ctx)->Driver.RunPipeline = _tnl_run_pipeline;
 426
 427         /* Configure swrast and TNL to match hardware characteristics:
 428          */
 429         _swrast_allow_pixel_fog(ctx, GL_FALSE);
 430         _swrast_allow_vertex_fog(ctx, GL_TRUE);
 431         _tnl_allow_pixel_fog(ctx, GL_FALSE);
 432         _tnl_allow_vertex_fog(ctx, GL_TRUE);
 433
 434         if (r300->options.hw_tcl_enabled) {
 435                 r300InitDraw(ctx);
 436         } else {
 437                 r300InitSwtcl(ctx);
 438         }
 439
 440         radeon_fbo_init(&r300->radeon);
 441         radeonInitSpanFuncs( ctx );
 442         r300InitCmdBuf(r300);
 443         r300InitState(r300);
 444         r300InitShaderFunctions(r300);
 445
 446         if (screen->chip_family == CHIP_FAMILY_RS600 || screen->chip_family == CHIP_FAMILY_RS690 ||
 447                 screen->chip_family == CHIP_FAMILY_RS740) {
 448                 r300->radeon.texture_row_align = 64;
 449         }
 450
 451         r300InitGLExtensions(ctx);
 452
 453         return GL_TRUE;
 454 }
 455