src/mesa/drivers/dri/r200/r200_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  * Authors:
  32  *   Keith Whitwell <keithw@vmware.com>
  33  */
  34
  35 #include <stdbool.h>
  36 #include "main/glheader.h"
  37 #include "main/api_arrayelt.h"
  38 #include "main/api_exec.h"
  39 #include "main/context.h"
  40 #include "main/imports.h"
  41 #include "main/extensions.h"
  42 #include "main/version.h"
  43 #include "main/vtxfmt.h"
  44
  45 #include "swrast/swrast.h"
  46 #include "swrast_setup/swrast_setup.h"
  47 #include "vbo/vbo.h"
  48
  49 #include "tnl/tnl.h"
  50 #include "tnl/t_pipeline.h"
  51
  52 #include "drivers/common/driverfuncs.h"
  53
  54 #include "r200_context.h"
  55 #include "r200_ioctl.h"
  56 #include "r200_state.h"
  57 #include "r200_tex.h"
  58 #include "r200_swtcl.h"
  59 #include "r200_tcl.h"
  60 #include "r200_vertprog.h"
  61 #include "radeon_queryobj.h"
  62 #include "r200_blit.h"
  63 #include "radeon_fog.h"
  64
  65 #include "radeon_span.h"
  66
  67 #include "utils.h"
  68 #include "xmlpool.h" /* for symbolic values of enum-type options */
  69
  70 /* Return various strings for glGetString().
  71  */
  72 static const GLubyte *r200GetString( struct gl_context *ctx, GLenum name )
  73 {
  74    r200ContextPtr rmesa = R200_CONTEXT(ctx);
  75    static char buffer[128];
  76    unsigned   offset;
  77    GLuint agp_mode = (rmesa->radeon.radeonScreen->card_type == RADEON_CARD_PCI)? 0 :
  78       rmesa->radeon.radeonScreen->AGPMode;
  79
  80    switch ( name ) {
  81    case GL_VENDOR:
  82       return (GLubyte *)"Mesa Project";
  83
  84    case GL_RENDERER:
  85       offset = driGetRendererString( buffer, "R200", agp_mode );
  86
  87       sprintf( & buffer[ offset ], " %sTCL",
  88                !(rmesa->radeon.TclFallback & R200_TCL_FALLBACK_TCL_DISABLE)
  89                ? "" : "NO-" );
  90
  91       return (GLubyte *)buffer;
  92
  93    default:
  94       return NULL;
  95    }
  96 }
  97
  98
  99 extern const struct tnl_pipeline_stage _r200_render_stage;
 100 extern const struct tnl_pipeline_stage _r200_tcl_stage;
 101
 102 static const struct tnl_pipeline_stage *r200_pipeline[] = {
 103
 104    /* Try and go straight to t&l
 105     */
 106    &_r200_tcl_stage,
 107
 108    /* Catch any t&l fallbacks
 109     */
 110    &_tnl_vertex_transform_stage,
 111    &_tnl_normal_transform_stage,
 112    &_tnl_lighting_stage,
 113    &_tnl_fog_coordinate_stage,
 114    &_tnl_texgen_stage,
 115    &_tnl_texture_transform_stage,
 116    &_tnl_point_attenuation_stage,
 117    &_tnl_vertex_program_stage,
 118    /* Try again to go to tcl?
 119     *     - no good for asymmetric-twoside (do with multipass)
 120     *     - no good for asymmetric-unfilled (do with multipass)
 121     *     - good for material
 122     *     - good for texgen
 123     *     - need to manipulate a bit of state
 124     *
 125     * - worth it/not worth it?
 126     */
 127
 128    /* Else do them here.
 129     */
 130 /*    &_r200_render_stage,  */ /* FIXME: bugs with ut2003 */
 131    &_tnl_render_stage,          /* FALLBACK:  */
 132    NULL,
 133 };
 134
 135
 136
 137 /* Initialize the driver's misc functions.
 138  */
 139 static void r200InitDriverFuncs( struct dd_function_table *functions )
 140 {
 141     functions->GetString                = r200GetString;
 142 }
 143
 144
 145 static void r200_emit_query_finish(radeonContextPtr radeon)
 146 {
 147    BATCH_LOCALS(radeon);
 148    struct radeon_query_object *query = radeon->query.current;
 149
 150    BEGIN_BATCH(4);
 151    OUT_BATCH(CP_PACKET0(RADEON_RB3D_ZPASS_ADDR, 0));
 152    OUT_BATCH_RELOC(0, query->bo, query->curr_offset, 0, RADEON_GEM_DOMAIN_GTT, 0);
 153    END_BATCH();
 154    query->curr_offset += sizeof(uint32_t);
 155    assert(query->curr_offset < RADEON_QUERY_PAGE_SIZE);
 156    query->emitted_begin = GL_FALSE;
 157 }
 158
 159 static void r200_init_vtbl(radeonContextPtr radeon)
 160 {
 161    radeon->vtbl.swtcl_flush = r200_swtcl_flush;
 162    radeon->vtbl.fallback = r200Fallback;
 163    radeon->vtbl.update_scissor = r200_vtbl_update_scissor;
 164    radeon->vtbl.emit_query_finish = r200_emit_query_finish;
 165    radeon->vtbl.check_blit = r200_check_blit;
 166    radeon->vtbl.blit = r200_blit;
 167    radeon->vtbl.is_format_renderable = radeonIsFormatRenderable;
 168    radeon->vtbl.revalidate_all_buffers = r200ValidateBuffers;
 169 }
 170
 171
 172 /* Create the device specific rendering context.
 173  */
 174 GLboolean r200CreateContext( gl_api api,
 175                              const struct gl_config *glVisual,
 176                              __DRIcontext *driContextPriv,
 177                              unsigned major_version,
 178                              unsigned minor_version,
 179                              uint32_t flags,
 180                              bool notify_reset,
 181                              unsigned *error,
 182                              void *sharedContextPrivate)
 183 {
 184    __DRIscreen *sPriv = driContextPriv->driScreenPriv;
 185    radeonScreenPtr screen = (radeonScreenPtr)(sPriv->driverPrivate);
 186    struct dd_function_table functions;
 187    r200ContextPtr rmesa;
 188    struct gl_context *ctx;
 189    int i;
 190    int tcl_mode;
 191
 192    if (flags & ~(__DRI_CTX_FLAG_DEBUG | __DRI_CTX_FLAG_NO_ERROR)) {
 193       *error = __DRI_CTX_ERROR_UNKNOWN_FLAG;
 194       return false;
 195    }
 196
 197    if (notify_reset) {
 198       *error = __DRI_CTX_ERROR_UNKNOWN_ATTRIBUTE;
 199       return false;
 200    }
 201
 202    assert(driContextPriv);
 203    assert(screen);
 204
 205    /* Allocate the R200 context */
 206    rmesa = calloc(1, sizeof(*rmesa));
 207    if ( !rmesa ) {
 208       *error = __DRI_CTX_ERROR_NO_MEMORY;
 209       return GL_FALSE;
 210    }
 211
 212    rmesa->radeon.radeonScreen = screen;
 213    r200_init_vtbl(&rmesa->radeon);
 214    /* init exp fog table data */
 215    radeonInitStaticFogData();
 216
 217    /* Parse configuration files.
 218     * Do this here so that initialMaxAnisotropy is set before we create
 219     * the default textures.
 220     */
 221    driParseConfigFiles (&rmesa->radeon.optionCache, &screen->optionCache,
 222                         screen->driScreen->myNum, "r200");
 223    rmesa->radeon.initialMaxAnisotropy = driQueryOptionf(&rmesa->radeon.optionCache,
 224                                                         "def_max_anisotropy");
 225
 226    if (driQueryOptionb( &rmesa->radeon.optionCache, "hyperz"))
 227       rmesa->using_hyperz = GL_TRUE;
 228
 229    /* Init default driver functions then plug in our R200-specific functions
 230     * (the texture functions are especially important)
 231     */
 232    _mesa_init_driver_functions(&functions);
 233    r200InitDriverFuncs(&functions);
 234    r200InitIoctlFuncs(&functions);
 235    r200InitStateFuncs(&rmesa->radeon, &functions);
 236    r200InitTextureFuncs(&rmesa->radeon, &functions);
 237    r200InitShaderFuncs(&functions);
 238    radeonInitQueryObjFunctions(&functions);
 239
 240    if (!radeonInitContext(&rmesa->radeon, api, &functions,
 241                           glVisual, driContextPriv,
 242                           sharedContextPrivate)) {
 243      free(rmesa);
 244      *error = __DRI_CTX_ERROR_NO_MEMORY;
 245      return GL_FALSE;
 246    }
 247
 248    rmesa->radeon.swtcl.RenderIndex = ~0;
 249    rmesa->radeon.hw.all_dirty = 1;
 250
 251    ctx = &rmesa->radeon.glCtx;
 252
 253    driContextSetFlags(ctx, flags);
 254
 255    /* Initialize the software rasterizer and helper modules.
 256     */
 257    _swrast_CreateContext( ctx );
 258    _vbo_CreateContext( ctx );
 259    _tnl_CreateContext( ctx );
 260    _swsetup_CreateContext( ctx );
 261    _ae_create_context( ctx );
 262
 263    ctx->Const.MaxTextureUnits = driQueryOptioni (&rmesa->radeon.optionCache,
 264                                                  "texture_units");
 265    ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxTextureImageUnits = ctx->Const.MaxTextureUnits;
 266    ctx->Const.MaxTextureCoordUnits = ctx->Const.MaxTextureUnits;
 267
 268    ctx->Const.MaxCombinedTextureImageUnits = ctx->Const.MaxTextureUnits;
 269
 270    ctx->Const.StripTextureBorder = GL_TRUE;
 271
 272    /* FIXME: When no memory manager is available we should set this
 273     * to some reasonable value based on texture memory pool size */
 274    ctx->Const.MaxTextureLevels = 12;
 275    ctx->Const.Max3DTextureLevels = 9;
 276    ctx->Const.MaxCubeTextureLevels = 12;
 277    ctx->Const.MaxTextureRectSize = 2048;
 278    ctx->Const.MaxRenderbufferSize = 2048;
 279
 280    ctx->Const.MaxTextureMaxAnisotropy = 16.0;
 281
 282    /* No wide AA points.
 283     */
 284    ctx->Const.MinPointSize = 1.0;
 285    ctx->Const.MinPointSizeAA = 1.0;
 286    ctx->Const.MaxPointSizeAA = 1.0;
 287    ctx->Const.PointSizeGranularity = 0.0625;
 288    ctx->Const.MaxPointSize = 2047.0;
 289
 290    /* mesa initialization problem - _mesa_init_point was already called */
 291    ctx->Point.MaxSize = ctx->Const.MaxPointSize;
 292
 293    ctx->Const.MinLineWidth = 1.0;
 294    ctx->Const.MinLineWidthAA = 1.0;
 295    ctx->Const.MaxLineWidth = 10.0;
 296    ctx->Const.MaxLineWidthAA = 10.0;
 297    ctx->Const.LineWidthGranularity = 0.0625;
 298
 299    ctx->Const.Program[MESA_SHADER_VERTEX].MaxNativeInstructions = R200_VSF_MAX_INST;
 300    ctx->Const.Program[MESA_SHADER_VERTEX].MaxNativeAttribs = 12;
 301    ctx->Const.Program[MESA_SHADER_VERTEX].MaxNativeTemps = R200_VSF_MAX_TEMPS;
 302    ctx->Const.Program[MESA_SHADER_VERTEX].MaxNativeParameters = R200_VSF_MAX_PARAM;
 303    ctx->Const.Program[MESA_SHADER_VERTEX].MaxNativeAddressRegs = 1;
 304
 305    ctx->Const.MaxDrawBuffers = 1;
 306    ctx->Const.MaxColorAttachments = 1;
 307
 308    ctx->Const.ShaderCompilerOptions[MESA_SHADER_VERTEX].OptimizeForAOS = GL_TRUE;
 309
 310    /* Install the customized pipeline:
 311     */
 312    _tnl_destroy_pipeline( ctx );
 313    _tnl_install_pipeline( ctx, r200_pipeline );
 314
 315    /* Try and keep materials and vertices separate:
 316     */
 317 /*    _tnl_isolate_materials( ctx, GL_TRUE ); */
 318
 319
 320    /* Configure swrast and TNL to match hardware characteristics:
 321     */
 322    _swrast_allow_pixel_fog( ctx, GL_FALSE );
 323    _swrast_allow_vertex_fog( ctx, GL_TRUE );
 324    _tnl_allow_pixel_fog( ctx, GL_FALSE );
 325    _tnl_allow_vertex_fog( ctx, GL_TRUE );
 326
 327
 328    for ( i = 0 ; i < R200_MAX_TEXTURE_UNITS ; i++ ) {
 329       _math_matrix_ctr( &rmesa->TexGenMatrix[i] );
 330       _math_matrix_set_identity( &rmesa->TexGenMatrix[i] );
 331    }
 332    _math_matrix_ctr( &rmesa->tmpmat );
 333    _math_matrix_set_identity( &rmesa->tmpmat );
 334
 335    ctx->Extensions.ARB_occlusion_query = true;
 336    ctx->Extensions.ARB_point_sprite = true;
 337    ctx->Extensions.ARB_texture_border_clamp = true;
 338    ctx->Extensions.ARB_texture_cube_map = true;
 339    ctx->Extensions.ARB_texture_env_combine = true;
 340    ctx->Extensions.ARB_texture_env_dot3 = true;
 341    ctx->Extensions.ARB_texture_env_crossbar = true;
 342    ctx->Extensions.ARB_texture_mirror_clamp_to_edge = true;
 343    ctx->Extensions.ARB_vertex_program = true;
 344    ctx->Extensions.ATI_fragment_shader = (ctx->Const.MaxTextureUnits == 6);
 345    ctx->Extensions.ATI_texture_env_combine3 = true;
 346    ctx->Extensions.ATI_texture_mirror_once = true;
 347    ctx->Extensions.EXT_blend_color = true;
 348    ctx->Extensions.EXT_blend_equation_separate = true;
 349    ctx->Extensions.EXT_blend_func_separate = true;
 350    ctx->Extensions.EXT_blend_minmax = true;
 351    ctx->Extensions.EXT_gpu_program_parameters = true;
 352    ctx->Extensions.EXT_point_parameters = true;
 353    ctx->Extensions.EXT_texture_env_dot3 = true;
 354    ctx->Extensions.EXT_texture_filter_anisotropic = true;
 355    ctx->Extensions.EXT_texture_mirror_clamp = true;
 356    ctx->Extensions.MESA_pack_invert = true;
 357    ctx->Extensions.NV_texture_rectangle = true;
 358    ctx->Extensions.OES_EGL_image = true;
 359
 360    if (!(rmesa->radeon.radeonScreen->chip_flags & R200_CHIPSET_YCBCR_BROKEN)) {
 361      /* yuv textures don't work with some chips - R200 / rv280 okay so far
 362         others get the bit ordering right but don't actually do YUV-RGB conversion */
 363       ctx->Extensions.MESA_ycbcr_texture = true;
 364    }
 365    if (rmesa->radeon.glCtx.Mesa_DXTn) {
 366       ctx->Extensions.EXT_texture_compression_s3tc = true;
 367       ctx->Extensions.ANGLE_texture_compression_dxt = true;
 368    }
 369    else if (driQueryOptionb (&rmesa->radeon.optionCache, "force_s3tc_enable")) {
 370       ctx->Extensions.EXT_texture_compression_s3tc = true;
 371       ctx->Extensions.ANGLE_texture_compression_dxt = true;
 372    }
 373
 374 #if 0
 375    r200InitDriverFuncs( ctx );
 376    r200InitIoctlFuncs( ctx );
 377    r200InitStateFuncs( ctx );
 378    r200InitTextureFuncs( ctx );
 379 #endif
 380    /* plug in a few more device driver functions */
 381    /* XXX these should really go right after _mesa_init_driver_functions() */
 382    radeon_fbo_init(&rmesa->radeon);
 383    radeonInitSpanFuncs( ctx );
 384    r200InitTnlFuncs( ctx );
 385    r200InitState( rmesa );
 386    r200InitSwtcl( ctx );
 387
 388    rmesa->prefer_gart_client_texturing =
 389       (getenv("R200_GART_CLIENT_TEXTURES") != 0);
 390
 391    tcl_mode = driQueryOptioni(&rmesa->radeon.optionCache, "tcl_mode");
 392    if (driQueryOptionb(&rmesa->radeon.optionCache, "no_rast")) {
 393       fprintf(stderr, "disabling 3D acceleration\n");
 394       FALLBACK(rmesa, R200_FALLBACK_DISABLE, 1);
 395    }
 396    else if (tcl_mode == DRI_CONF_TCL_SW || getenv("R200_NO_TCL") ||
 397             !(rmesa->radeon.radeonScreen->chip_flags & RADEON_CHIPSET_TCL)) {
 398       if (rmesa->radeon.radeonScreen->chip_flags & RADEON_CHIPSET_TCL) {
 399          rmesa->radeon.radeonScreen->chip_flags &= ~RADEON_CHIPSET_TCL;
 400          fprintf(stderr, "Disabling HW TCL support\n");
 401       }
 402       TCL_FALLBACK(&rmesa->radeon.glCtx, R200_TCL_FALLBACK_TCL_DISABLE, 1);
 403    }
 404
 405    _mesa_compute_version(ctx);
 406
 407    /* Exec table initialization requires the version to be computed */
 408    _mesa_initialize_dispatch_tables(ctx);
 409    _mesa_initialize_vbo_vtxfmt(ctx);
 410
 411    *error = __DRI_CTX_ERROR_SUCCESS;
 412    return GL_TRUE;
 413 }
 414
 415
 416 void r200DestroyContext( __DRIcontext *driContextPriv )
 417 {
 418         int i;
 419         r200ContextPtr rmesa = (r200ContextPtr)driContextPriv->driverPrivate;
 420         if (rmesa)
 421         {
 422                 for ( i = 0 ; i < R200_MAX_TEXTURE_UNITS ; i++ ) {
 423                         _math_matrix_dtr( &rmesa->TexGenMatrix[i] );
 424                 }
 425         }
 426         radeonDestroyContext(driContextPriv);
 427 }