src/mesa/drivers/dri/r200/r200_tex.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  * Authors:
  31  *   Keith Whitwell <keithw@vmware.com>
  32  */
  33
  34 #include "main/glheader.h"
  35 #include "main/imports.h"
  36 #include "main/context.h"
  37 #include "main/enums.h"
  38 #include "main/image.h"
  39 #include "main/teximage.h"
  40 #include "main/texobj.h"
  41 #include "main/samplerobj.h"
  42
  43 #include "radeon_mipmap_tree.h"
  44 #include "r200_context.h"
  45 #include "r200_ioctl.h"
  46 #include "r200_tex.h"
  47
  48 #include "util/xmlpool.h"
  49
  50
  51
  52 /**
  53  * Set the texture wrap modes.
  54  *
  55  * \param t Texture object whose wrap modes are to be set
  56  * \param swrap Wrap mode for the \a s texture coordinate
  57  * \param twrap Wrap mode for the \a t texture coordinate
  58  */
  59
  60 static void r200SetTexWrap( radeonTexObjPtr t, GLenum swrap, GLenum twrap, GLenum rwrap )
  61 {
  62    GLboolean  is_clamp = GL_FALSE;
  63    GLboolean  is_clamp_to_border = GL_FALSE;
  64    struct gl_texture_object *tObj = &t->base;
  65
  66    radeon_print(RADEON_TEXTURE, RADEON_TRACE,
  67                 "%s(tex %p) sw %s, tw %s, rw %s\n",
  68                 __func__, t,
  69                 _mesa_enum_to_string(swrap),
  70                 _mesa_enum_to_string(twrap),
  71                 _mesa_enum_to_string(rwrap));
  72
  73    t->pp_txfilter &= ~(R200_CLAMP_S_MASK | R200_CLAMP_T_MASK | R200_BORDER_MODE_D3D);
  74
  75    switch ( swrap ) {
  76    case GL_REPEAT:
  77       t->pp_txfilter |= R200_CLAMP_S_WRAP;
  78       break;
  79    case GL_CLAMP:
  80       t->pp_txfilter |= R200_CLAMP_S_CLAMP_GL;
  81       is_clamp = GL_TRUE;
  82       break;
  83    case GL_CLAMP_TO_EDGE:
  84       t->pp_txfilter |= R200_CLAMP_S_CLAMP_LAST;
  85       break;
  86    case GL_CLAMP_TO_BORDER:
  87       t->pp_txfilter |= R200_CLAMP_S_CLAMP_GL;
  88       is_clamp_to_border = GL_TRUE;
  89       break;
  90    case GL_MIRRORED_REPEAT:
  91       t->pp_txfilter |= R200_CLAMP_S_MIRROR;
  92       break;
  93    case GL_MIRROR_CLAMP_EXT:
  94       t->pp_txfilter |= R200_CLAMP_S_MIRROR_CLAMP_GL;
  95       is_clamp = GL_TRUE;
  96       break;
  97    case GL_MIRROR_CLAMP_TO_EDGE_EXT:
  98       t->pp_txfilter |= R200_CLAMP_S_MIRROR_CLAMP_LAST;
  99       break;
 100    case GL_MIRROR_CLAMP_TO_BORDER_EXT:
 101       t->pp_txfilter |= R200_CLAMP_S_MIRROR_CLAMP_GL;
 102       is_clamp_to_border = GL_TRUE;
 103       break;
 104    default:
 105       _mesa_problem(NULL, "bad S wrap mode in %s", __func__);
 106    }
 107
 108    if (tObj->Target != GL_TEXTURE_1D) {
 109       switch ( twrap ) {
 110       case GL_REPEAT:
 111          t->pp_txfilter |= R200_CLAMP_T_WRAP;
 112          break;
 113       case GL_CLAMP:
 114          t->pp_txfilter |= R200_CLAMP_T_CLAMP_GL;
 115          is_clamp = GL_TRUE;
 116          break;
 117       case GL_CLAMP_TO_EDGE:
 118          t->pp_txfilter |= R200_CLAMP_T_CLAMP_LAST;
 119          break;
 120       case GL_CLAMP_TO_BORDER:
 121          t->pp_txfilter |= R200_CLAMP_T_CLAMP_GL;
 122          is_clamp_to_border = GL_TRUE;
 123          break;
 124       case GL_MIRRORED_REPEAT:
 125          t->pp_txfilter |= R200_CLAMP_T_MIRROR;
 126          break;
 127       case GL_MIRROR_CLAMP_EXT:
 128          t->pp_txfilter |= R200_CLAMP_T_MIRROR_CLAMP_GL;
 129          is_clamp = GL_TRUE;
 130          break;
 131       case GL_MIRROR_CLAMP_TO_EDGE_EXT:
 132          t->pp_txfilter |= R200_CLAMP_T_MIRROR_CLAMP_LAST;
 133          break;
 134       case GL_MIRROR_CLAMP_TO_BORDER_EXT:
 135          t->pp_txfilter |= R200_CLAMP_T_MIRROR_CLAMP_GL;
 136          is_clamp_to_border = GL_TRUE;
 137          break;
 138       default:
 139          _mesa_problem(NULL, "bad T wrap mode in %s", __func__);
 140       }
 141    }
 142
 143    t->pp_txformat_x &= ~R200_CLAMP_Q_MASK;
 144
 145    switch ( rwrap ) {
 146    case GL_REPEAT:
 147       t->pp_txformat_x |= R200_CLAMP_Q_WRAP;
 148       break;
 149    case GL_CLAMP:
 150       t->pp_txformat_x |= R200_CLAMP_Q_CLAMP_GL;
 151       is_clamp = GL_TRUE;
 152       break;
 153    case GL_CLAMP_TO_EDGE:
 154       t->pp_txformat_x |= R200_CLAMP_Q_CLAMP_LAST;
 155       break;
 156    case GL_CLAMP_TO_BORDER:
 157       t->pp_txformat_x |= R200_CLAMP_Q_CLAMP_GL;
 158       is_clamp_to_border = GL_TRUE;
 159       break;
 160    case GL_MIRRORED_REPEAT:
 161       t->pp_txformat_x |= R200_CLAMP_Q_MIRROR;
 162       break;
 163    case GL_MIRROR_CLAMP_EXT:
 164       t->pp_txformat_x |= R200_CLAMP_Q_MIRROR_CLAMP_GL;
 165       is_clamp = GL_TRUE;
 166       break;
 167    case GL_MIRROR_CLAMP_TO_EDGE_EXT:
 168       t->pp_txformat_x |= R200_CLAMP_Q_MIRROR_CLAMP_LAST;
 169       break;
 170    case GL_MIRROR_CLAMP_TO_BORDER_EXT:
 171       t->pp_txformat_x |= R200_CLAMP_Q_MIRROR_CLAMP_GL;
 172       is_clamp_to_border = GL_TRUE;
 173       break;
 174    default:
 175       _mesa_problem(NULL, "bad R wrap mode in %s", __func__);
 176    }
 177
 178    if ( is_clamp_to_border ) {
 179       t->pp_txfilter |= R200_BORDER_MODE_D3D;
 180    }
 181
 182    t->border_fallback = (is_clamp && is_clamp_to_border);
 183 }
 184
 185 static void r200SetTexMaxAnisotropy( radeonTexObjPtr t, GLfloat max )
 186 {
 187    t->pp_txfilter &= ~R200_MAX_ANISO_MASK;
 188    radeon_print(RADEON_TEXTURE, RADEON_TRACE,
 189         "%s(tex %p) max %f.\n",
 190         __func__, t, max);
 191
 192    if ( max <= 1.0 ) {
 193       t->pp_txfilter |= R200_MAX_ANISO_1_TO_1;
 194    } else if ( max <= 2.0 ) {
 195       t->pp_txfilter |= R200_MAX_ANISO_2_TO_1;
 196    } else if ( max <= 4.0 ) {
 197       t->pp_txfilter |= R200_MAX_ANISO_4_TO_1;
 198    } else if ( max <= 8.0 ) {
 199       t->pp_txfilter |= R200_MAX_ANISO_8_TO_1;
 200    } else {
 201       t->pp_txfilter |= R200_MAX_ANISO_16_TO_1;
 202    }
 203 }
 204
 205 /**
 206  * Set the texture magnification and minification modes.
 207  *
 208  * \param t Texture whose filter modes are to be set
 209  * \param minf Texture minification mode
 210  * \param magf Texture magnification mode
 211  */
 212
 213 static void r200SetTexFilter( radeonTexObjPtr t, GLenum minf, GLenum magf )
 214 {
 215    GLuint anisotropy = (t->pp_txfilter & R200_MAX_ANISO_MASK);
 216
 217    /* Force revalidation to account for switches from/to mipmapping. */
 218    t->validated = GL_FALSE;
 219
 220    t->pp_txfilter &= ~(R200_MIN_FILTER_MASK | R200_MAG_FILTER_MASK);
 221    t->pp_txformat_x &= ~R200_VOLUME_FILTER_MASK;
 222
 223    radeon_print(RADEON_TEXTURE, RADEON_TRACE,
 224         "%s(tex %p) minf %s, maxf %s, anisotropy %d.\n",
 225         __func__, t,
 226         _mesa_enum_to_string(minf),
 227         _mesa_enum_to_string(magf),
 228         anisotropy);
 229
 230    if ( anisotropy == R200_MAX_ANISO_1_TO_1 ) {
 231       switch ( minf ) {
 232       case GL_NEAREST:
 233          t->pp_txfilter |= R200_MIN_FILTER_NEAREST;
 234          break;
 235       case GL_LINEAR:
 236          t->pp_txfilter |= R200_MIN_FILTER_LINEAR;
 237          break;
 238       case GL_NEAREST_MIPMAP_NEAREST:
 239          t->pp_txfilter |= R200_MIN_FILTER_NEAREST_MIP_NEAREST;
 240          break;
 241       case GL_NEAREST_MIPMAP_LINEAR:
 242          t->pp_txfilter |= R200_MIN_FILTER_LINEAR_MIP_NEAREST;
 243          break;
 244       case GL_LINEAR_MIPMAP_NEAREST:
 245          t->pp_txfilter |= R200_MIN_FILTER_NEAREST_MIP_LINEAR;
 246          break;
 247       case GL_LINEAR_MIPMAP_LINEAR:
 248          t->pp_txfilter |= R200_MIN_FILTER_LINEAR_MIP_LINEAR;
 249          break;
 250       }
 251    } else {
 252       switch ( minf ) {
 253       case GL_NEAREST:
 254          t->pp_txfilter |= R200_MIN_FILTER_ANISO_NEAREST;
 255          break;
 256       case GL_LINEAR:
 257          t->pp_txfilter |= R200_MIN_FILTER_ANISO_LINEAR;
 258          break;
 259       case GL_NEAREST_MIPMAP_NEAREST:
 260       case GL_LINEAR_MIPMAP_NEAREST:
 261          t->pp_txfilter |= R200_MIN_FILTER_ANISO_NEAREST_MIP_NEAREST;
 262          break;
 263       case GL_NEAREST_MIPMAP_LINEAR:
 264       case GL_LINEAR_MIPMAP_LINEAR:
 265          t->pp_txfilter |= R200_MIN_FILTER_ANISO_NEAREST_MIP_LINEAR;
 266          break;
 267       }
 268    }
 269
 270    /* Note we don't have 3D mipmaps so only use the mag filter setting
 271     * to set the 3D texture filter mode.
 272     */
 273    switch ( magf ) {
 274    case GL_NEAREST:
 275       t->pp_txfilter |= R200_MAG_FILTER_NEAREST;
 276       t->pp_txformat_x |= R200_VOLUME_FILTER_NEAREST;
 277       break;
 278    case GL_LINEAR:
 279       t->pp_txfilter |= R200_MAG_FILTER_LINEAR;
 280       t->pp_txformat_x |= R200_VOLUME_FILTER_LINEAR;
 281       break;
 282    }
 283 }
 284
 285 static void r200SetTexBorderColor( radeonTexObjPtr t, const GLfloat color[4] )
 286 {
 287    GLubyte c[4];
 288    CLAMPED_FLOAT_TO_UBYTE(c[0], color[0]);
 289    CLAMPED_FLOAT_TO_UBYTE(c[1], color[1]);
 290    CLAMPED_FLOAT_TO_UBYTE(c[2], color[2]);
 291    CLAMPED_FLOAT_TO_UBYTE(c[3], color[3]);
 292    t->pp_border_color = radeonPackColor( 4, c[0], c[1], c[2], c[3] );
 293 }
 294
 295 static void r200TexEnv( struct gl_context *ctx, GLenum target,
 296                           GLenum pname, const GLfloat *param )
 297 {
 298    r200ContextPtr rmesa = R200_CONTEXT(ctx);
 299    GLuint unit = ctx->Texture.CurrentUnit;
 300    struct gl_fixedfunc_texture_unit *texUnit =
 301       &ctx->Texture.FixedFuncUnit[unit];
 302
 303    radeon_print(RADEON_TEXTURE | RADEON_STATE, RADEON_VERBOSE, "%s( %s )\n",
 304                __func__, _mesa_enum_to_string( pname ) );
 305
 306    /* This is incorrect: Need to maintain this data for each of
 307     * GL_TEXTURE_{123}D, GL_TEXTURE_RECTANGLE_NV, etc, and switch
 308     * between them according to _Current->Target.
 309     */
 310    switch ( pname ) {
 311    case GL_TEXTURE_ENV_COLOR: {
 312       GLubyte c[4];
 313       GLuint envColor;
 314       _mesa_unclamped_float_rgba_to_ubyte(c, texUnit->EnvColor);
 315       envColor = radeonPackColor( 4, c[0], c[1], c[2], c[3] );
 316       if ( rmesa->hw.tf.cmd[TF_TFACTOR_0 + unit] != envColor ) {
 317          R200_STATECHANGE( rmesa, tf );
 318          rmesa->hw.tf.cmd[TF_TFACTOR_0 + unit] = envColor;
 319       }
 320       break;
 321    }
 322
 323    case GL_TEXTURE_LOD_BIAS_EXT: {
 324       GLfloat bias, min;
 325       GLuint b;
 326       const int fixed_one = R200_LOD_BIAS_FIXED_ONE;
 327
 328       /* The R200's LOD bias is a signed 2's complement value with a
 329        * range of -16.0 <= bias < 16.0.
 330        *
 331        * NOTE: Add a small bias to the bias for conform mipsel.c test.
 332        */
 333       bias = *param;
 334       min = driQueryOptionb (&rmesa->radeon.optionCache, "no_neg_lod_bias") ?
 335           0.0 : -16.0;
 336       bias = CLAMP( bias, min, 16.0 );
 337       b = ((int)(bias * fixed_one)
 338                 + R200_LOD_BIAS_CORRECTION) & R200_LOD_BIAS_MASK;
 339
 340       if ( (rmesa->hw.tex[unit].cmd[TEX_PP_TXFORMAT_X] & R200_LOD_BIAS_MASK) != b ) {
 341          R200_STATECHANGE( rmesa, tex[unit] );
 342          rmesa->hw.tex[unit].cmd[TEX_PP_TXFORMAT_X] &= ~R200_LOD_BIAS_MASK;
 343          rmesa->hw.tex[unit].cmd[TEX_PP_TXFORMAT_X] |= b;
 344       }
 345       break;
 346    }
 347    case GL_COORD_REPLACE_ARB:
 348       if (ctx->Point.PointSprite) {
 349          R200_STATECHANGE( rmesa, spr );
 350          if ((GLenum)param[0]) {
 351             rmesa->hw.spr.cmd[SPR_POINT_SPRITE_CNTL] |= R200_PS_GEN_TEX_0 << unit;
 352          } else {
 353             rmesa->hw.spr.cmd[SPR_POINT_SPRITE_CNTL] &= ~(R200_PS_GEN_TEX_0 << unit);
 354          }
 355       }
 356       break;
 357    default:
 358       return;
 359    }
 360 }
 361
 362 void r200TexUpdateParameters(struct gl_context *ctx, GLuint unit)
 363 {
 364    struct gl_sampler_object *samp = _mesa_get_samplerobj(ctx, unit);
 365    radeonTexObj* t = radeon_tex_obj(ctx->Texture.Unit[unit]._Current);
 366
 367    r200SetTexMaxAnisotropy(t , samp->MaxAnisotropy);
 368    r200SetTexFilter(t, samp->MinFilter, samp->MagFilter);
 369    r200SetTexWrap(t, samp->WrapS, samp->WrapT, samp->WrapR);
 370    r200SetTexBorderColor(t, samp->BorderColor.f);
 371 }
 372
 373 /**
 374  * Changes variables and flags for a state update, which will happen at the
 375  * next UpdateTextureState
 376  */
 377 static void r200TexParameter(struct gl_context *ctx,
 378                              struct gl_texture_object *texObj,
 379                              GLenum pname)
 380 {
 381    radeonTexObj* t = radeon_tex_obj(texObj);
 382
 383    radeon_print(RADEON_TEXTURE | RADEON_STATE, RADEON_VERBOSE,
 384                 "%s(%p, tex %p)  pname %s\n",
 385                 __func__, ctx, texObj,
 386                _mesa_enum_to_string( pname ) );
 387
 388    switch ( pname ) {
 389    case GL_TEXTURE_MIN_FILTER:
 390    case GL_TEXTURE_MAG_FILTER:
 391    case GL_TEXTURE_MAX_ANISOTROPY_EXT:
 392    case GL_TEXTURE_WRAP_S:
 393    case GL_TEXTURE_WRAP_T:
 394    case GL_TEXTURE_WRAP_R:
 395    case GL_TEXTURE_BORDER_COLOR:
 396    case GL_TEXTURE_BASE_LEVEL:
 397    case GL_TEXTURE_MAX_LEVEL:
 398    case GL_TEXTURE_MIN_LOD:
 399    case GL_TEXTURE_MAX_LOD:
 400       t->validated = GL_FALSE;
 401       break;
 402
 403    default:
 404       return;
 405    }
 406 }
 407
 408
 409 static void r200DeleteTexture(struct gl_context * ctx, struct gl_texture_object *texObj)
 410 {
 411    r200ContextPtr rmesa = R200_CONTEXT(ctx);
 412    radeonTexObj* t = radeon_tex_obj(texObj);
 413
 414    radeon_print(RADEON_TEXTURE | RADEON_STATE, RADEON_NORMAL,
 415            "%s( %p (target = %s) )\n", __func__,
 416            (void *)texObj,
 417            _mesa_enum_to_string(texObj->Target));
 418
 419    if (rmesa) {
 420       int i;
 421       radeon_firevertices(&rmesa->radeon);
 422       for ( i = 0 ; i < rmesa->radeon.glCtx.Const.MaxTextureUnits ; i++ ) {
 423          if ( t == rmesa->state.texture.unit[i].texobj ) {
 424             rmesa->state.texture.unit[i].texobj = NULL;
 425             rmesa->hw.tex[i].dirty = GL_FALSE;
 426             rmesa->hw.cube[i].dirty = GL_FALSE;
 427          }
 428       }
 429    }
 430
 431    radeon_miptree_unreference(&t->mt);
 432
 433    _mesa_delete_texture_object(ctx, texObj);
 434 }
 435
 436 /* Need:
 437  *  - Same GEN_MODE for all active bits
 438  *  - Same EyePlane/ObjPlane for all active bits when using Eye/Obj
 439  *  - STRQ presumably all supported (matrix means incoming R values
 440  *    can end up in STQ, this has implications for vertex support,
 441  *    presumably ok if maos is used, though?)
 442  *
 443  * Basically impossible to do this on the fly - just collect some
 444  * basic info & do the checks from ValidateState().
 445  */
 446 static void r200TexGen( struct gl_context *ctx,
 447                           GLenum coord,
 448                           GLenum pname,
 449                           const GLfloat *params )
 450 {
 451    r200ContextPtr rmesa = R200_CONTEXT(ctx);
 452    GLuint unit = ctx->Texture.CurrentUnit;
 453    rmesa->recheck_texgen[unit] = GL_TRUE;
 454 }
 455
 456
 457 /**
 458  * Allocate a new texture object.
 459  * Called via ctx->Driver.NewTextureObject.
 460  * Note: this function will be called during context creation to
 461  * allocate the default texture objects.
 462  * Fixup MaxAnisotropy according to user preference.
 463  */
 464 static struct gl_texture_object *r200NewTextureObject(struct gl_context * ctx,
 465                                                       GLuint name,
 466                                                       GLenum target)
 467 {
 468    r200ContextPtr rmesa = R200_CONTEXT(ctx);
 469    radeonTexObj* t = CALLOC_STRUCT(radeon_tex_obj);
 470
 471
 472    radeon_print(RADEON_STATE | RADEON_TEXTURE, RADEON_NORMAL,
 473            "%s(%p) target %s, new texture %p.\n",
 474            __func__, ctx,
 475            _mesa_enum_to_string(target), t);
 476
 477    _mesa_initialize_texture_object(ctx, &t->base, name, target);
 478    t->base.Sampler.MaxAnisotropy = rmesa->radeon.initialMaxAnisotropy;
 479
 480    /* Initialize hardware state */
 481    r200SetTexWrap( t, t->base.Sampler.WrapS, t->base.Sampler.WrapT, t->base.Sampler.WrapR );
 482    r200SetTexMaxAnisotropy( t, t->base.Sampler.MaxAnisotropy );
 483    r200SetTexFilter(t, t->base.Sampler.MinFilter, t->base.Sampler.MagFilter);
 484    r200SetTexBorderColor(t, t->base.Sampler.BorderColor.f);
 485
 486    return &t->base;
 487 }
 488
 489 static struct gl_sampler_object *
 490 r200NewSamplerObject(struct gl_context *ctx, GLuint name)
 491 {
 492    r200ContextPtr rmesa = R200_CONTEXT(ctx);
 493    struct gl_sampler_object *samp = _mesa_new_sampler_object(ctx, name);
 494    if (samp)
 495       samp->MaxAnisotropy = rmesa->radeon.initialMaxAnisotropy;
 496    return samp;
 497 }
 498
 499
 500
 501 void r200InitTextureFuncs( radeonContextPtr radeon, struct dd_function_table *functions )
 502 {
 503    /* Note: we only plug in the functions we implement in the driver
 504     * since _mesa_init_driver_functions() was already called.
 505     */
 506
 507    radeon_init_common_texture_funcs(radeon, functions);
 508
 509    functions->NewTextureObject          = r200NewTextureObject;
 510    //   functions->BindTexture          = r200BindTexture;
 511    functions->DeleteTexture             = r200DeleteTexture;
 512
 513    functions->TexEnv                    = r200TexEnv;
 514    functions->TexParameter              = r200TexParameter;
 515    functions->TexGen                    = r200TexGen;
 516    functions->NewSamplerObject          = r200NewSamplerObject;
 517 }