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 #include "radeon_buffer_objects.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         /* Catch any t&l fallbacks
 158          */
 159         &_tnl_vertex_transform_stage,
 160         &_tnl_normal_transform_stage,
 161         &_tnl_lighting_stage,
 162         &_tnl_fog_coordinate_stage,
 163         &_tnl_texgen_stage,
 164         &_tnl_texture_transform_stage,
 165         &_tnl_point_attenuation_stage,
 166         &_tnl_vertex_program_stage,
 167         &_tnl_render_stage,
 168         0,
 169 };
 170
 171 static void r300_get_lock(radeonContextPtr rmesa)
 172 {
 173         drm_radeon_sarea_t *sarea = rmesa->sarea;
 174
 175         if (sarea->ctx_owner != rmesa->dri.hwContext) {
 176                 sarea->ctx_owner = rmesa->dri.hwContext;
 177                 if (!rmesa->radeonScreen->kernel_mm)
 178                         radeon_bo_legacy_texture_age(rmesa->radeonScreen->bom);
 179         }
 180 }
 181
 182 static void r300_vtbl_emit_cs_header(struct radeon_cs *cs, radeonContextPtr rmesa)
 183 {
 184     /* please flush pipe do all pending work */
 185     radeon_cs_write_dword(cs, cmdpacket0(rmesa->radeonScreen,
 186                                   R300_SC_SCREENDOOR, 1));
 187     radeon_cs_write_dword(cs, 0x0);
 188     radeon_cs_write_dword(cs, cmdpacket0(rmesa->radeonScreen,
 189                                   R300_SC_SCREENDOOR, 1));
 190     radeon_cs_write_dword(cs, 0x00FFFFFF);
 191     radeon_cs_write_dword(cs, cmdpacket0(rmesa->radeonScreen,
 192                                   R300_SC_HYPERZ, 1));
 193     radeon_cs_write_dword(cs, 0x0);
 194     radeon_cs_write_dword(cs, cmdpacket0(rmesa->radeonScreen,
 195                                   R300_US_CONFIG, 1));
 196     radeon_cs_write_dword(cs, 0x0);
 197     radeon_cs_write_dword(cs, cmdpacket0(rmesa->radeonScreen,
 198                                   R300_ZB_CNTL, 1));
 199     radeon_cs_write_dword(cs, 0x0);
 200     radeon_cs_write_dword(cs, cmdwait(rmesa->radeonScreen, R300_WAIT_3D));
 201     radeon_cs_write_dword(cs, cmdpacket0(rmesa->radeonScreen,
 202                                   R300_RB3D_DSTCACHE_CTLSTAT, 1));
 203     radeon_cs_write_dword(cs, R300_RB3D_DSTCACHE_CTLSTAT_DC_FLUSH_FLUSH_DIRTY_3D);
 204     radeon_cs_write_dword(cs, cmdpacket0(rmesa->radeonScreen,
 205                                   R300_ZB_ZCACHE_CTLSTAT, 1));
 206     radeon_cs_write_dword(cs, R300_ZB_ZCACHE_CTLSTAT_ZC_FLUSH_FLUSH_AND_FREE);
 207     radeon_cs_write_dword(cs, cmdwait(rmesa->radeonScreen,
 208                                R300_WAIT_3D | R300_WAIT_3D_CLEAN));
 209 }
 210
 211 static void r300_vtbl_pre_emit_atoms(radeonContextPtr radeon)
 212 {
 213         r300ContextPtr r300 = (r300ContextPtr)radeon;
 214         BATCH_LOCALS(radeon);
 215
 216         r300->vap_flush_needed = GL_TRUE;
 217
 218         cp_wait(radeon, R300_WAIT_3D | R300_WAIT_3D_CLEAN);
 219         BEGIN_BATCH_NO_AUTOSTATE(2);
 220         OUT_BATCH_REGVAL(R300_TX_INVALTAGS, R300_TX_FLUSH);
 221         END_BATCH();
 222         end_3d(radeon);
 223 }
 224
 225 static void r300_fallback(GLcontext *ctx, GLuint bit, GLboolean mode)
 226 {
 227         r300ContextPtr r300 = R300_CONTEXT(ctx);
 228         if (mode)
 229                 r300->radeon.Fallback |= bit;
 230         else
 231                 r300->radeon.Fallback &= ~bit;
 232 }
 233
 234 static void r300_init_vtbl(radeonContextPtr radeon)
 235 {
 236         radeon->vtbl.get_lock = r300_get_lock;
 237         radeon->vtbl.update_viewport_offset = r300UpdateViewportOffset;
 238         radeon->vtbl.emit_cs_header = r300_vtbl_emit_cs_header;
 239         radeon->vtbl.swtcl_flush = r300_swtcl_flush;
 240         radeon->vtbl.pre_emit_atoms = r300_vtbl_pre_emit_atoms;
 241         radeon->vtbl.fallback = r300_fallback;
 242 }
 243
 244 static void r300InitConstValues(GLcontext *ctx, radeonScreenPtr screen)
 245 {
 246         r300ContextPtr r300 = R300_CONTEXT(ctx);
 247
 248         ctx->Const.MaxTextureImageUnits =
 249             driQueryOptioni(&r300->radeon.optionCache, "texture_image_units");
 250         ctx->Const.MaxTextureCoordUnits =
 251             driQueryOptioni(&r300->radeon.optionCache, "texture_coord_units");
 252         ctx->Const.MaxTextureUnits = MIN2(ctx->Const.MaxTextureImageUnits,
 253                  ctx->Const.MaxTextureCoordUnits);
 254
 255         ctx->Const.MaxTextureMaxAnisotropy = 16.0;
 256         ctx->Const.MaxTextureLodBias = 16.0;
 257
 258         if (screen->chip_family >= CHIP_FAMILY_RV515) {
 259                 ctx->Const.MaxTextureLevels = 13;
 260                 ctx->Const.MaxCubeTextureLevels = 13;
 261                 ctx->Const.MaxTextureRectSize = 4096;
 262         }
 263         else {
 264                 ctx->Const.MaxTextureLevels = 12;
 265                 ctx->Const.MaxCubeTextureLevels = 12;
 266                 ctx->Const.MaxTextureRectSize = 2048;
 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         ctx->Const.MaxDrawBuffers = 1;
 280
 281         /* currently bogus data */
 282         if (r300->options.hw_tcl_enabled) {
 283                 ctx->Const.VertexProgram.MaxInstructions = VSF_MAX_FRAGMENT_LENGTH / 4;
 284                 ctx->Const.VertexProgram.MaxNativeInstructions =
 285                   VSF_MAX_FRAGMENT_LENGTH / 4;
 286                 ctx->Const.VertexProgram.MaxNativeAttribs = 16; /* r420 */
 287                 ctx->Const.VertexProgram.MaxTemps = 32;
 288                 ctx->Const.VertexProgram.MaxNativeTemps =
 289                   /*VSF_MAX_FRAGMENT_TEMPS */ 32;
 290                 ctx->Const.VertexProgram.MaxNativeParameters = 256;     /* r420 */
 291                 ctx->Const.VertexProgram.MaxNativeAddressRegs = 1;
 292         }
 293
 294         if (screen->chip_family >= CHIP_FAMILY_RV515) {
 295                 ctx->Const.FragmentProgram.MaxNativeTemps = R500_PFS_NUM_TEMP_REGS;
 296                 ctx->Const.FragmentProgram.MaxNativeAttribs = 11;       /* copy i915... */
 297                 ctx->Const.FragmentProgram.MaxNativeParameters = R500_PFS_NUM_CONST_REGS;
 298                 ctx->Const.FragmentProgram.MaxNativeAluInstructions = R500_PFS_MAX_INST;
 299                 ctx->Const.FragmentProgram.MaxNativeTexInstructions = R500_PFS_MAX_INST;
 300                 ctx->Const.FragmentProgram.MaxNativeInstructions = R500_PFS_MAX_INST;
 301                 ctx->Const.FragmentProgram.MaxNativeTexIndirections = R500_PFS_MAX_INST;
 302                 ctx->Const.FragmentProgram.MaxNativeAddressRegs = 0;
 303         } else {
 304                 ctx->Const.FragmentProgram.MaxNativeTemps = R300_PFS_NUM_TEMP_REGS;
 305                 ctx->Const.FragmentProgram.MaxNativeAttribs = 11;       /* copy i915... */
 306                 ctx->Const.FragmentProgram.MaxNativeParameters = R300_PFS_NUM_CONST_REGS;
 307                 ctx->Const.FragmentProgram.MaxNativeAluInstructions = R300_PFS_MAX_ALU_INST;
 308                 ctx->Const.FragmentProgram.MaxNativeTexInstructions = R300_PFS_MAX_TEX_INST;
 309                 ctx->Const.FragmentProgram.MaxNativeInstructions = R300_PFS_MAX_ALU_INST + R300_PFS_MAX_TEX_INST;
 310                 ctx->Const.FragmentProgram.MaxNativeTexIndirections = R300_PFS_MAX_TEX_INDIRECT;
 311                 ctx->Const.FragmentProgram.MaxNativeAddressRegs = 0;
 312         }
 313 }
 314
 315 static void r300ParseOptions(r300ContextPtr r300, radeonScreenPtr screen)
 316 {
 317         struct r300_options options = { 0 };
 318
 319         driParseConfigFiles(&r300->radeon.optionCache, &screen->optionCache,
 320                             screen->driScreen->myNum, "r300");
 321
 322         r300->radeon.initialMaxAnisotropy = driQueryOptionf(&r300->radeon.optionCache, "def_max_anisotropy");
 323
 324         options.stencil_two_side_disabled = driQueryOptionb(&r300->radeon.optionCache, "disable_stencil_two_side");
 325         options.s3tc_force_enabled = driQueryOptionb(&r300->radeon.optionCache, "force_s3tc_enable");
 326         options.s3tc_force_disabled = driQueryOptionb(&r300->radeon.optionCache, "disable_s3tc");
 327
 328         if (!(screen->chip_flags & RADEON_CHIPSET_TCL) || driQueryOptioni(&r300->radeon.optionCache, "tcl_mode") == DRI_CONF_TCL_SW)
 329                 options.hw_tcl_enabled = 0;
 330         else
 331                 options.hw_tcl_enabled = 1;
 332
 333         options.conformance_mode = !driQueryOptionb(&r300->radeon.optionCache, "disable_lowimpact_fallback");
 334
 335         r300->options = options;
 336 }
 337
 338 static void r300InitGLExtensions(GLcontext *ctx)
 339 {
 340         r300ContextPtr r300 = R300_CONTEXT(ctx);
 341
 342         driInitExtensions(ctx, card_extensions, GL_TRUE);
 343         if (r300->radeon.radeonScreen->kernel_mm)
 344                 driInitExtensions(ctx, mm_extensions, GL_FALSE);
 345
 346         if (r300->options.stencil_two_side_disabled)
 347                 _mesa_disable_extension(ctx, "GL_EXT_stencil_two_side");
 348
 349         if (ctx->Mesa_DXTn && !r300->options.s3tc_force_enabled) {
 350                 _mesa_enable_extension(ctx, "GL_EXT_texture_compression_s3tc");
 351                 _mesa_enable_extension(ctx, "GL_S3_s3tc");
 352         } else if (r300->options.s3tc_force_disabled) {
 353                 _mesa_disable_extension(ctx, "GL_EXT_texture_compression_s3tc");
 354         }
 355 }
 356
 357 /* Create the device specific rendering context.
 358  */
 359 GLboolean r300CreateContext(const __GLcontextModes * glVisual,
 360                             __DRIcontextPrivate * driContextPriv,
 361                             void *sharedContextPrivate)
 362 {
 363         __DRIscreenPrivate *sPriv = driContextPriv->driScreenPriv;
 364         radeonScreenPtr screen = (radeonScreenPtr) (sPriv->private);
 365         struct dd_function_table functions;
 366         r300ContextPtr r300;
 367         GLcontext *ctx;
 368
 369         assert(glVisual);
 370         assert(driContextPriv);
 371         assert(screen);
 372
 373         r300 = (r300ContextPtr) CALLOC(sizeof(*r300));
 374         if (!r300)
 375                 return GL_FALSE;
 376
 377         r300ParseOptions(r300, screen);
 378
 379         r300_init_vtbl(&r300->radeon);
 380
 381         _mesa_init_driver_functions(&functions);
 382         r300InitIoctlFuncs(&functions);
 383         r300InitStateFuncs(&functions);
 384         r300InitTextureFuncs(&functions);
 385         r300InitShaderFuncs(&functions);
 386         radeonInitBufferObjectFuncs(&functions);
 387
 388         if (!radeonInitContext(&r300->radeon, &functions,
 389                                glVisual, driContextPriv,
 390                                sharedContextPrivate)) {
 391                 FREE(r300);
 392                 return GL_FALSE;
 393         }
 394
 395         ctx = r300->radeon.glCtx;
 396
 397         r300->fallback = 0;
 398         if (r300->options.hw_tcl_enabled)
 399                 ctx->VertexProgram._MaintainTnlProgram = GL_TRUE;
 400
 401         ctx->FragmentProgram._MaintainTexEnvProgram = GL_TRUE;
 402
 403         r300InitConstValues(ctx, screen);
 404
 405         _mesa_set_mvp_with_dp4( ctx, GL_TRUE );
 406
 407         /* Initialize the software rasterizer and helper modules.
 408          */
 409         _swrast_CreateContext(ctx);
 410         _vbo_CreateContext(ctx);
 411         _tnl_CreateContext(ctx);
 412         _swsetup_CreateContext(ctx);
 413         _swsetup_Wakeup(ctx);
 414
 415         /* Install the customized pipeline:
 416          */
 417         _tnl_destroy_pipeline(ctx);
 418         _tnl_install_pipeline(ctx, r300_pipeline);
 419         TNL_CONTEXT(ctx)->Driver.RunPipeline = _tnl_run_pipeline;
 420
 421         /* Configure swrast and TNL to match hardware characteristics:
 422          */
 423         _swrast_allow_pixel_fog(ctx, GL_FALSE);
 424         _swrast_allow_vertex_fog(ctx, GL_TRUE);
 425         _tnl_allow_pixel_fog(ctx, GL_FALSE);
 426         _tnl_allow_vertex_fog(ctx, GL_TRUE);
 427
 428         if (r300->options.hw_tcl_enabled) {
 429                 r300InitDraw(ctx);
 430         } else {
 431                 r300InitSwtcl(ctx);
 432         }
 433
 434         radeon_fbo_init(&r300->radeon);
 435         radeonInitSpanFuncs( ctx );
 436         r300InitCmdBuf(r300);
 437         r300InitState(r300);
 438         r300InitShaderFunctions(r300);
 439
 440         r300InitGLExtensions(ctx);
 441
 442         return GL_TRUE;
 443 }
 444