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 "util/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                              const struct __DriverContextConfig *ctx_config,
 178                              unsigned *error,
 179                              void *sharedContextPrivate)
 180 {
 181    __DRIscreen *sPriv = driContextPriv->driScreenPriv;
 182    radeonScreenPtr screen = (radeonScreenPtr)(sPriv->driverPrivate);
 183    struct dd_function_table functions;
 184    r200ContextPtr rmesa;
 185    struct gl_context *ctx;
 186    int i;
 187    int tcl_mode;
 188
 189    if (ctx_config->flags & ~(__DRI_CTX_FLAG_DEBUG | __DRI_CTX_FLAG_NO_ERROR)) {
 190       *error = __DRI_CTX_ERROR_UNKNOWN_FLAG;
 191       return false;
 192    }
 193
 194    if (ctx_config->attribute_mask) {
 195       *error = __DRI_CTX_ERROR_UNKNOWN_ATTRIBUTE;
 196       return false;
 197    }
 198
 199    assert(driContextPriv);
 200    assert(screen);
 201
 202    /* Allocate the R200 context */
 203    rmesa = calloc(1, sizeof(*rmesa));
 204    if ( !rmesa ) {
 205       *error = __DRI_CTX_ERROR_NO_MEMORY;
 206       return GL_FALSE;
 207    }
 208
 209    rmesa->radeon.radeonScreen = screen;
 210    r200_init_vtbl(&rmesa->radeon);
 211    /* init exp fog table data */
 212    radeonInitStaticFogData();
 213
 214    /* Parse configuration files.
 215     * Do this here so that initialMaxAnisotropy is set before we create
 216     * the default textures.
 217     */
 218    driParseConfigFiles (&rmesa->radeon.optionCache, &screen->optionCache,
 219                         screen->driScreen->myNum, "r200", NULL);
 220    rmesa->radeon.initialMaxAnisotropy = driQueryOptionf(&rmesa->radeon.optionCache,
 221                                                         "def_max_anisotropy");
 222
 223    if (driQueryOptionb( &rmesa->radeon.optionCache, "hyperz"))
 224       rmesa->using_hyperz = GL_TRUE;
 225
 226    /* Init default driver functions then plug in our R200-specific functions
 227     * (the texture functions are especially important)
 228     */
 229    _mesa_init_driver_functions(&functions);
 230    _tnl_init_driver_draw_function(&functions);
 231    r200InitDriverFuncs(&functions);
 232    r200InitIoctlFuncs(&functions);
 233    r200InitStateFuncs(&rmesa->radeon, &functions);
 234    r200InitTextureFuncs(&rmesa->radeon, &functions);
 235    r200InitShaderFuncs(&functions);
 236    radeonInitQueryObjFunctions(&functions);
 237
 238    if (!radeonInitContext(&rmesa->radeon, api, &functions,
 239                           glVisual, driContextPriv,
 240                           sharedContextPrivate)) {
 241      free(rmesa);
 242      *error = __DRI_CTX_ERROR_NO_MEMORY;
 243      return GL_FALSE;
 244    }
 245
 246    rmesa->radeon.swtcl.RenderIndex = ~0;
 247    rmesa->radeon.hw.all_dirty = 1;
 248
 249    ctx = &rmesa->radeon.glCtx;
 250
 251    driContextSetFlags(ctx, ctx_config->flags);
 252
 253    /* Initialize the software rasterizer and helper modules.
 254     */
 255    _swrast_CreateContext( ctx );
 256    _vbo_CreateContext( ctx );
 257    _tnl_CreateContext( ctx );
 258    _swsetup_CreateContext( ctx );
 259    _ae_create_context( ctx );
 260
 261    ctx->Const.MaxTextureUnits = driQueryOptioni (&rmesa->radeon.optionCache,
 262                                                  "texture_units");
 263    ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxTextureImageUnits = ctx->Const.MaxTextureUnits;
 264    ctx->Const.MaxTextureCoordUnits = ctx->Const.MaxTextureUnits;
 265
 266    ctx->Const.MaxCombinedTextureImageUnits = ctx->Const.MaxTextureUnits;
 267
 268    ctx->Const.StripTextureBorder = GL_TRUE;
 269
 270    /* FIXME: When no memory manager is available we should set this
 271     * to some reasonable value based on texture memory pool size */
 272    ctx->Const.MaxTextureLevels = 12;
 273    ctx->Const.Max3DTextureLevels = 9;
 274    ctx->Const.MaxCubeTextureLevels = 12;
 275    ctx->Const.MaxTextureRectSize = 2048;
 276    ctx->Const.MaxRenderbufferSize = 2048;
 277
 278    ctx->Const.MaxTextureMaxAnisotropy = 16.0;
 279
 280    /* No wide AA points.
 281     */
 282    ctx->Const.MinPointSize = 1.0;
 283    ctx->Const.MinPointSizeAA = 1.0;
 284    ctx->Const.MaxPointSizeAA = 1.0;
 285    ctx->Const.PointSizeGranularity = 0.0625;
 286    ctx->Const.MaxPointSize = 2047.0;
 287
 288    /* mesa initialization problem - _mesa_init_point was already called */
 289    ctx->Point.MaxSize = ctx->Const.MaxPointSize;
 290
 291    ctx->Const.MinLineWidth = 1.0;
 292    ctx->Const.MinLineWidthAA = 1.0;
 293    ctx->Const.MaxLineWidth = 10.0;
 294    ctx->Const.MaxLineWidthAA = 10.0;
 295    ctx->Const.LineWidthGranularity = 0.0625;
 296
 297    ctx->Const.Program[MESA_SHADER_VERTEX].MaxNativeInstructions = R200_VSF_MAX_INST;
 298    ctx->Const.Program[MESA_SHADER_VERTEX].MaxNativeAttribs = 12;
 299    ctx->Const.Program[MESA_SHADER_VERTEX].MaxNativeTemps = R200_VSF_MAX_TEMPS;
 300    ctx->Const.Program[MESA_SHADER_VERTEX].MaxNativeParameters = R200_VSF_MAX_PARAM;
 301    ctx->Const.Program[MESA_SHADER_VERTEX].MaxNativeAddressRegs = 1;
 302
 303    ctx->Const.MaxDrawBuffers = 1;
 304    ctx->Const.MaxColorAttachments = 1;
 305
 306    ctx->Const.ShaderCompilerOptions[MESA_SHADER_VERTEX].OptimizeForAOS = GL_TRUE;
 307
 308    /* Install the customized pipeline:
 309     */
 310    _tnl_destroy_pipeline( ctx );
 311    _tnl_install_pipeline( ctx, r200_pipeline );
 312
 313    /* Try and keep materials and vertices separate:
 314     */
 315 /*    _tnl_isolate_materials( ctx, GL_TRUE ); */
 316
 317
 318    /* Configure swrast and TNL to match hardware characteristics:
 319     */
 320    _swrast_allow_pixel_fog( ctx, GL_FALSE );
 321    _swrast_allow_vertex_fog( ctx, GL_TRUE );
 322    _tnl_allow_pixel_fog( ctx, GL_FALSE );
 323    _tnl_allow_vertex_fog( ctx, GL_TRUE );
 324
 325
 326    for ( i = 0 ; i < R200_MAX_TEXTURE_UNITS ; i++ ) {
 327       _math_matrix_ctr( &rmesa->TexGenMatrix[i] );
 328       _math_matrix_set_identity( &rmesa->TexGenMatrix[i] );
 329    }
 330    _math_matrix_ctr( &rmesa->tmpmat );
 331    _math_matrix_set_identity( &rmesa->tmpmat );
 332
 333    ctx->Extensions.ARB_occlusion_query = true;
 334    ctx->Extensions.ARB_point_sprite = true;
 335    ctx->Extensions.ARB_texture_border_clamp = true;
 336    ctx->Extensions.ARB_texture_cube_map = true;
 337    ctx->Extensions.ARB_texture_env_combine = true;
 338    ctx->Extensions.ARB_texture_env_dot3 = true;
 339    ctx->Extensions.ARB_texture_env_crossbar = true;
 340    ctx->Extensions.ARB_texture_filter_anisotropic = true;
 341    ctx->Extensions.ARB_texture_mirror_clamp_to_edge = true;
 342    ctx->Extensions.ARB_vertex_program = true;
 343    ctx->Extensions.ATI_fragment_shader = (ctx->Const.MaxTextureUnits == 6);
 344    ctx->Extensions.ATI_texture_env_combine3 = true;
 345    ctx->Extensions.ATI_texture_mirror_once = true;
 346    ctx->Extensions.EXT_blend_color = true;
 347    ctx->Extensions.EXT_blend_equation_separate = true;
 348    ctx->Extensions.EXT_blend_func_separate = true;
 349    ctx->Extensions.EXT_blend_minmax = true;
 350    ctx->Extensions.EXT_gpu_program_parameters = true;
 351    ctx->Extensions.EXT_point_parameters = true;
 352    ctx->Extensions.EXT_texture_env_dot3 = true;
 353    ctx->Extensions.EXT_texture_filter_anisotropic = true;
 354    ctx->Extensions.EXT_texture_mirror_clamp = true;
 355    ctx->Extensions.MESA_pack_invert = true;
 356    ctx->Extensions.NV_fog_distance = 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    ctx->Extensions.EXT_texture_compression_s3tc = true;
 366    ctx->Extensions.ANGLE_texture_compression_dxt = true;
 367
 368 #if 0
 369    r200InitDriverFuncs( ctx );
 370    r200InitIoctlFuncs( ctx );
 371    r200InitStateFuncs( ctx );
 372    r200InitTextureFuncs( ctx );
 373 #endif
 374    /* plug in a few more device driver functions */
 375    /* XXX these should really go right after _mesa_init_driver_functions() */
 376    radeon_fbo_init(&rmesa->radeon);
 377    radeonInitSpanFuncs( ctx );
 378    r200InitTnlFuncs( ctx );
 379    r200InitState( rmesa );
 380    r200InitSwtcl( ctx );
 381
 382    rmesa->prefer_gart_client_texturing =
 383       (getenv("R200_GART_CLIENT_TEXTURES") != 0);
 384
 385    tcl_mode = driQueryOptioni(&rmesa->radeon.optionCache, "tcl_mode");
 386    if (driQueryOptionb(&rmesa->radeon.optionCache, "no_rast")) {
 387       fprintf(stderr, "disabling 3D acceleration\n");
 388       FALLBACK(rmesa, R200_FALLBACK_DISABLE, 1);
 389    }
 390    else if (tcl_mode == DRI_CONF_TCL_SW || getenv("R200_NO_TCL") ||
 391             !(rmesa->radeon.radeonScreen->chip_flags & RADEON_CHIPSET_TCL)) {
 392       if (rmesa->radeon.radeonScreen->chip_flags & RADEON_CHIPSET_TCL) {
 393          rmesa->radeon.radeonScreen->chip_flags &= ~RADEON_CHIPSET_TCL;
 394          fprintf(stderr, "Disabling HW TCL support\n");
 395       }
 396       TCL_FALLBACK(&rmesa->radeon.glCtx, R200_TCL_FALLBACK_TCL_DISABLE, 1);
 397    }
 398
 399    _mesa_override_extensions(ctx);
 400    _mesa_compute_version(ctx);
 401
 402    /* Exec table initialization requires the version to be computed */
 403    _mesa_initialize_dispatch_tables(ctx);
 404    _mesa_initialize_vbo_vtxfmt(ctx);
 405
 406    *error = __DRI_CTX_ERROR_SUCCESS;
 407    return GL_TRUE;
 408 }
 409
 410
 411 void r200DestroyContext( __DRIcontext *driContextPriv )
 412 {
 413         int i;
 414         r200ContextPtr rmesa = (r200ContextPtr)driContextPriv->driverPrivate;
 415         if (rmesa)
 416         {
 417                 for ( i = 0 ; i < R200_MAX_TEXTURE_UNITS ; i++ ) {
 418                         _math_matrix_dtr( &rmesa->TexGenMatrix[i] );
 419                 }
 420         }
 421         radeonDestroyContext(driContextPriv);
 422 }