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_vertex_array_bgra",          NULL},
 128   {"GL_ATI_separate_stencil",           GL_ATI_separate_stencil_functions},
 129   {"GL_ATI_texture_env_combine3",       NULL},
 130   {"GL_ATI_texture_mirror_once",        NULL},
 131   {"GL_MESA_pack_invert",               NULL},
 132   {"GL_MESA_ycbcr_texture",             NULL},
 133   {"GL_MESAX_texture_float",            NULL},
 134   {"GL_NV_blend_square",                NULL},
 135   {"GL_NV_vertex_program",              GL_NV_vertex_program_functions},
 136   {"GL_SGIS_generate_mipmap",           NULL},
 137   {NULL,                                NULL}
 138   /* *INDENT-ON* */
 139 };
 140
 141
 142 const struct dri_extension mm_extensions[] = {
 143   { "GL_EXT_framebuffer_object", GL_EXT_framebuffer_object_functions },
 144   { NULL, NULL }
 145 };
 146
 147 /**
 148  * The GL 2.0 functions are needed to make display lists work with
 149  * functions added by GL_ATI_separate_stencil.
 150  */
 151 const struct dri_extension gl_20_extension[] = {
 152   {"GL_VERSION_2_0",                    GL_VERSION_2_0_functions },
 153 };
 154
 155 static const struct tnl_pipeline_stage *r300_pipeline[] = {
 156
 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
 168         /* Try again to go to tcl?
 169          *     - no good for asymmetric-twoside (do with multipass)
 170          *     - no good for asymmetric-unfilled (do with multipass)
 171          *     - good for material
 172          *     - good for texgen
 173          *     - need to manipulate a bit of state
 174          *
 175          * - worth it/not worth it?
 176          */
 177
 178         /* Else do them here.
 179          */
 180         &_r300_render_stage,
 181         &_tnl_render_stage,     /* FALLBACK  */
 182         0,
 183 };
 184
 185 static void r300_get_lock(radeonContextPtr rmesa)
 186 {
 187         drm_radeon_sarea_t *sarea = rmesa->sarea;
 188
 189         if (sarea->ctx_owner != rmesa->dri.hwContext) {
 190                 sarea->ctx_owner = rmesa->dri.hwContext;
 191                 if (!rmesa->radeonScreen->kernel_mm)
 192                         radeon_bo_legacy_texture_age(rmesa->radeonScreen->bom);
 193         }
 194 }
 195
 196 static void r300_vtbl_emit_cs_header(struct radeon_cs *cs, radeonContextPtr rmesa)
 197 {
 198     /* please flush pipe do all pending work */
 199     radeon_cs_write_dword(cs, cmdpacket0(rmesa->radeonScreen,
 200                                   R300_SC_SCREENDOOR, 1));
 201     radeon_cs_write_dword(cs, 0x0);
 202     radeon_cs_write_dword(cs, cmdpacket0(rmesa->radeonScreen,
 203                                   R300_SC_SCREENDOOR, 1));
 204     radeon_cs_write_dword(cs, 0x00FFFFFF);
 205     radeon_cs_write_dword(cs, cmdpacket0(rmesa->radeonScreen,
 206                                   R300_SC_HYPERZ, 1));
 207     radeon_cs_write_dword(cs, 0x0);
 208     radeon_cs_write_dword(cs, cmdpacket0(rmesa->radeonScreen,
 209                                   R300_US_CONFIG, 1));
 210     radeon_cs_write_dword(cs, 0x0);
 211     radeon_cs_write_dword(cs, cmdpacket0(rmesa->radeonScreen,
 212                                   R300_ZB_CNTL, 1));
 213     radeon_cs_write_dword(cs, 0x0);
 214     radeon_cs_write_dword(cs, cmdwait(rmesa->radeonScreen, R300_WAIT_3D));
 215     radeon_cs_write_dword(cs, cmdpacket0(rmesa->radeonScreen,
 216                                   R300_RB3D_DSTCACHE_CTLSTAT, 1));
 217     radeon_cs_write_dword(cs, R300_RB3D_DSTCACHE_CTLSTAT_DC_FLUSH_FLUSH_DIRTY_3D);
 218     radeon_cs_write_dword(cs, cmdpacket0(rmesa->radeonScreen,
 219                                   R300_ZB_ZCACHE_CTLSTAT, 1));
 220     radeon_cs_write_dword(cs, R300_ZB_ZCACHE_CTLSTAT_ZC_FLUSH_FLUSH_AND_FREE);
 221     radeon_cs_write_dword(cs, cmdwait(rmesa->radeonScreen,
 222                                R300_WAIT_3D | R300_WAIT_3D_CLEAN));
 223 }
 224
 225 static void r300_vtbl_pre_emit_atoms(radeonContextPtr radeon)
 226 {
 227         r300ContextPtr r300 = (r300ContextPtr)radeon;
 228         BATCH_LOCALS(radeon);
 229
 230         r300->vap_flush_needed = GL_TRUE;
 231
 232         cp_wait(radeon, R300_WAIT_3D | R300_WAIT_3D_CLEAN);
 233         BEGIN_BATCH_NO_AUTOSTATE(2);
 234         OUT_BATCH_REGVAL(R300_TX_INVALTAGS, R300_TX_FLUSH);
 235         END_BATCH();
 236         end_3d(radeon);
 237 }
 238
 239 static void r300_fallback(GLcontext *ctx, GLuint bit, GLboolean mode)
 240 {
 241         r300ContextPtr r300 = R300_CONTEXT(ctx);
 242         if (mode)
 243                 r300->radeon.Fallback |= bit;
 244         else
 245                 r300->radeon.Fallback &= ~bit;
 246 }
 247
 248 static void r300_init_vtbl(radeonContextPtr radeon)
 249 {
 250         radeon->vtbl.get_lock = r300_get_lock;
 251         radeon->vtbl.update_viewport_offset = r300UpdateViewportOffset;
 252         radeon->vtbl.emit_cs_header = r300_vtbl_emit_cs_header;
 253         radeon->vtbl.swtcl_flush = r300_swtcl_flush;
 254         radeon->vtbl.pre_emit_atoms = r300_vtbl_pre_emit_atoms;
 255         radeon->vtbl.fallback = r300_fallback;
 256 }
 257
 258 static void r300InitConstValues(GLcontext *ctx, radeonScreenPtr screen)
 259 {
 260         r300ContextPtr r300 = R300_CONTEXT(ctx);
 261
 262         ctx->Const.MaxTextureImageUnits =
 263             driQueryOptioni(&r300->radeon.optionCache, "texture_image_units");
 264         ctx->Const.MaxTextureCoordUnits =
 265             driQueryOptioni(&r300->radeon.optionCache, "texture_coord_units");
 266         ctx->Const.MaxTextureUnits = MIN2(ctx->Const.MaxTextureImageUnits,
 267                  ctx->Const.MaxTextureCoordUnits);
 268     /* FIXME: When no memory manager is available we should set this
 269      * to some reasonable value based on texture memory pool size */
 270     /* FIXME: r5xx limit is 4096 */
 271     ctx->Const.MaxTextureLevels = 12;
 272         ctx->Const.MaxTextureMaxAnisotropy = 16.0;
 273         ctx->Const.MaxTextureLodBias = 16.0;
 274
 275         if (screen->chip_family >= CHIP_FAMILY_RV515)
 276                 ctx->Const.MaxTextureLevels = 13;
 277         else
 278                 ctx->Const.MaxTextureLevels = 12;
 279
 280         ctx->Const.MinPointSize = 1.0;
 281         ctx->Const.MinPointSizeAA = 1.0;
 282         ctx->Const.MaxPointSize = R300_POINTSIZE_MAX;
 283         ctx->Const.MaxPointSizeAA = R300_POINTSIZE_MAX;
 284
 285         ctx->Const.MinLineWidth = 1.0;
 286         ctx->Const.MinLineWidthAA = 1.0;
 287         ctx->Const.MaxLineWidth = R300_LINESIZE_MAX;
 288         ctx->Const.MaxLineWidthAA = R300_LINESIZE_MAX;
 289
 290         ctx->Const.MaxDrawBuffers = 1;
 291
 292         /* currently bogus data */
 293         if (r300->options.hw_tcl_enabled) {
 294                 ctx->Const.VertexProgram.MaxInstructions = VSF_MAX_FRAGMENT_LENGTH / 4;
 295                 ctx->Const.VertexProgram.MaxNativeInstructions =
 296                   VSF_MAX_FRAGMENT_LENGTH / 4;
 297                 ctx->Const.VertexProgram.MaxNativeAttribs = 16; /* r420 */
 298                 ctx->Const.VertexProgram.MaxTemps = 32;
 299                 ctx->Const.VertexProgram.MaxNativeTemps =
 300                   /*VSF_MAX_FRAGMENT_TEMPS */ 32;
 301                 ctx->Const.VertexProgram.MaxNativeParameters = 256;     /* r420 */
 302                 ctx->Const.VertexProgram.MaxNativeAddressRegs = 1;
 303         }
 304
 305         if (screen->chip_family >= CHIP_FAMILY_RV515) {
 306                 ctx->Const.FragmentProgram.MaxNativeTemps = R500_PFS_NUM_TEMP_REGS;
 307                 ctx->Const.FragmentProgram.MaxNativeAttribs = 11;       /* copy i915... */
 308                 ctx->Const.FragmentProgram.MaxNativeParameters = R500_PFS_NUM_CONST_REGS;
 309                 ctx->Const.FragmentProgram.MaxNativeAluInstructions = R500_PFS_MAX_INST;
 310                 ctx->Const.FragmentProgram.MaxNativeTexInstructions = R500_PFS_MAX_INST;
 311                 ctx->Const.FragmentProgram.MaxNativeInstructions = R500_PFS_MAX_INST;
 312                 ctx->Const.FragmentProgram.MaxNativeTexIndirections = R500_PFS_MAX_INST;
 313                 ctx->Const.FragmentProgram.MaxNativeAddressRegs = 0;
 314         } else {
 315                 ctx->Const.FragmentProgram.MaxNativeTemps = R300_PFS_NUM_TEMP_REGS;
 316                 ctx->Const.FragmentProgram.MaxNativeAttribs = 11;       /* copy i915... */
 317                 ctx->Const.FragmentProgram.MaxNativeParameters = R300_PFS_NUM_CONST_REGS;
 318                 ctx->Const.FragmentProgram.MaxNativeAluInstructions = R300_PFS_MAX_ALU_INST;
 319                 ctx->Const.FragmentProgram.MaxNativeTexInstructions = R300_PFS_MAX_TEX_INST;
 320                 ctx->Const.FragmentProgram.MaxNativeInstructions = R300_PFS_MAX_ALU_INST + R300_PFS_MAX_TEX_INST;
 321                 ctx->Const.FragmentProgram.MaxNativeTexIndirections = R300_PFS_MAX_TEX_INDIRECT;
 322                 ctx->Const.FragmentProgram.MaxNativeAddressRegs = 0;
 323         }
 324 }
 325
 326 static void r300ParseOptions(r300ContextPtr r300, radeonScreenPtr screen)
 327 {
 328         struct r300_options options = { 0 };
 329
 330         driParseConfigFiles(&r300->radeon.optionCache, &screen->optionCache,
 331                             screen->driScreen->myNum, "r300");
 332
 333         r300->radeon.initialMaxAnisotropy = driQueryOptionf(&r300->radeon.optionCache, "def_max_anisotropy");
 334
 335         options.stencil_two_side_disabled = driQueryOptionb(&r300->radeon.optionCache, "disable_stencil_two_side");
 336         options.s3tc_force_enabled = driQueryOptionb(&r300->radeon.optionCache, "force_s3tc_enable");
 337         options.s3tc_force_disabled = driQueryOptionb(&r300->radeon.optionCache, "disable_s3tc");
 338
 339         if (!(screen->chip_flags & RADEON_CHIPSET_TCL) || driQueryOptioni(&r300->radeon.optionCache, "tcl_mode") == DRI_CONF_TCL_SW)
 340                 options.hw_tcl_enabled = 0;
 341         else
 342                 options.hw_tcl_enabled = 1;
 343
 344         options.conformance_mode = !driQueryOptionb(&r300->radeon.optionCache, "disable_lowimpact_fallback");
 345
 346         r300->options = options;
 347 }
 348
 349 static void r300InitGLExtensions(GLcontext *ctx)
 350 {
 351         r300ContextPtr r300 = R300_CONTEXT(ctx);
 352
 353         driInitExtensions(ctx, card_extensions, GL_TRUE);
 354         if (r300->radeon.radeonScreen->kernel_mm)
 355                 driInitExtensions(ctx, mm_extensions, GL_FALSE);
 356
 357         if (r300->options.stencil_two_side_disabled)
 358                 _mesa_disable_extension(ctx, "GL_EXT_stencil_two_side");
 359
 360         if (ctx->Mesa_DXTn && !r300->options.s3tc_force_enabled) {
 361                 _mesa_enable_extension(ctx, "GL_EXT_texture_compression_s3tc");
 362                 _mesa_enable_extension(ctx, "GL_S3_s3tc");
 363         } else if (r300->options.s3tc_force_disabled) {
 364                 _mesa_disable_extension(ctx, "GL_EXT_texture_compression_s3tc");
 365         }
 366 }
 367
 368 /* Create the device specific rendering context.
 369  */
 370 GLboolean r300CreateContext(const __GLcontextModes * glVisual,
 371                             __DRIcontextPrivate * driContextPriv,
 372                             void *sharedContextPrivate)
 373 {
 374         __DRIscreenPrivate *sPriv = driContextPriv->driScreenPriv;
 375         radeonScreenPtr screen = (radeonScreenPtr) (sPriv->private);
 376         struct dd_function_table functions;
 377         r300ContextPtr r300;
 378         GLcontext *ctx;
 379
 380         assert(glVisual);
 381         assert(driContextPriv);
 382         assert(screen);
 383
 384         r300 = (r300ContextPtr) CALLOC(sizeof(*r300));
 385         if (!r300)
 386                 return GL_FALSE;
 387
 388         r300ParseOptions(r300, screen);
 389
 390         r300_init_vtbl(&r300->radeon);
 391
 392         _mesa_init_driver_functions(&functions);
 393         r300InitIoctlFuncs(&functions);
 394         r300InitStateFuncs(&functions);
 395         r300InitTextureFuncs(&functions);
 396         r300InitShaderFuncs(&functions);
 397
 398         if (!radeonInitContext(&r300->radeon, &functions,
 399                                glVisual, driContextPriv,
 400                                sharedContextPrivate)) {
 401                 FREE(r300);
 402                 return GL_FALSE;
 403         }
 404
 405         ctx = r300->radeon.glCtx;
 406
 407         r300->fallback = 0;
 408         if (r300->options.hw_tcl_enabled)
 409                 ctx->VertexProgram._MaintainTnlProgram = GL_TRUE;
 410
 411         ctx->FragmentProgram._MaintainTexEnvProgram = GL_TRUE;
 412
 413         r300InitConstValues(ctx, screen);
 414
 415         /* Initialize the software rasterizer and helper modules.
 416          */
 417         _swrast_CreateContext(ctx);
 418         _vbo_CreateContext(ctx);
 419         _tnl_CreateContext(ctx);
 420         _swsetup_CreateContext(ctx);
 421         _swsetup_Wakeup(ctx);
 422
 423         /* Install the customized pipeline:
 424          */
 425         _tnl_destroy_pipeline(ctx);
 426         _tnl_install_pipeline(ctx, r300_pipeline);
 427         TNL_CONTEXT(ctx)->Driver.RunPipeline = _tnl_run_pipeline;
 428
 429         /* Configure swrast and TNL to match hardware characteristics:
 430          */
 431         _swrast_allow_pixel_fog(ctx, GL_FALSE);
 432         _swrast_allow_vertex_fog(ctx, GL_TRUE);
 433         _tnl_allow_pixel_fog(ctx, GL_FALSE);
 434         _tnl_allow_vertex_fog(ctx, GL_TRUE);
 435
 436         if (r300->options.hw_tcl_enabled) {
 437                 r300InitDraw(ctx);
 438         } else {
 439                 r300InitSwtcl(ctx);
 440         }
 441
 442         radeon_fbo_init(&r300->radeon);
 443         radeonInitSpanFuncs( ctx );
 444         r300InitCmdBuf(r300);
 445         r300InitState(r300);
 446         r300InitShaderFunctions(r300);
 447
 448         if (screen->chip_family == CHIP_FAMILY_RS600 || screen->chip_family == CHIP_FAMILY_RS690 ||
 449                 screen->chip_family == CHIP_FAMILY_RS740) {
 450                 r300->radeon.texture_row_align = 64;
 451         }
 452
 453         r300InitGLExtensions(ctx);
 454
 455         return GL_TRUE;
 456 }
 457