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 <keith@tungstengraphics.com>
  32  */
  33
  34 #include "main/glheader.h"
  35 #include "main/imports.h"
  36 #include "main/colormac.h"
  37 #include "main/context.h"
  38 #include "main/enums.h"
  39 #include "main/image.h"
  40 #include "main/mfeatures.h"
  41 #include "main/simple_list.h"
  42 #include "main/teximage.h"
  43 #include "main/texobj.h"
  44 #include "main/samplerobj.h"
  45
  46 #include "radeon_mipmap_tree.h"
  47 #include "r200_context.h"
  48 #include "r200_ioctl.h"
  49 #include "r200_tex.h"
  50
  51 #include "xmlpool.h"
  52
  53
  54
  55 /**
  56  * Set the texture wrap modes.
  57  *
  58  * \param t Texture object whose wrap modes are to be set
  59  * \param swrap Wrap mode for the \a s texture coordinate
  60  * \param twrap Wrap mode for the \a t texture coordinate
  61  */
  62
  63 static void r200SetTexWrap( radeonTexObjPtr t, GLenum swrap, GLenum twrap, GLenum rwrap )
  64 {
  65    GLboolean  is_clamp = GL_FALSE;
  66    GLboolean  is_clamp_to_border = GL_FALSE;
  67    struct gl_texture_object *tObj = &t->base;
  68
  69    radeon_print(RADEON_TEXTURE, RADEON_TRACE,
  70                 "%s(tex %p) sw %s, tw %s, rw %s\n",
  71                 __func__, t,
  72                 _mesa_lookup_enum_by_nr(swrap),
  73                 _mesa_lookup_enum_by_nr(twrap),
  74                 _mesa_lookup_enum_by_nr(rwrap));
  75
  76    t->pp_txfilter &= ~(R200_CLAMP_S_MASK | R200_CLAMP_T_MASK | R200_BORDER_MODE_D3D);
  77
  78    switch ( swrap ) {
  79    case GL_REPEAT:
  80       t->pp_txfilter |= R200_CLAMP_S_WRAP;
  81       break;
  82    case GL_CLAMP:
  83       t->pp_txfilter |= R200_CLAMP_S_CLAMP_GL;
  84       is_clamp = GL_TRUE;
  85       break;
  86    case GL_CLAMP_TO_EDGE:
  87       t->pp_txfilter |= R200_CLAMP_S_CLAMP_LAST;
  88       break;
  89    case GL_CLAMP_TO_BORDER:
  90       t->pp_txfilter |= R200_CLAMP_S_CLAMP_GL;
  91       is_clamp_to_border = GL_TRUE;
  92       break;
  93    case GL_MIRRORED_REPEAT:
  94       t->pp_txfilter |= R200_CLAMP_S_MIRROR;
  95       break;
  96    case GL_MIRROR_CLAMP_EXT:
  97       t->pp_txfilter |= R200_CLAMP_S_MIRROR_CLAMP_GL;
  98       is_clamp = GL_TRUE;
  99       break;
 100    case GL_MIRROR_CLAMP_TO_EDGE_EXT:
 101       t->pp_txfilter |= R200_CLAMP_S_MIRROR_CLAMP_LAST;
 102       break;
 103    case GL_MIRROR_CLAMP_TO_BORDER_EXT:
 104       t->pp_txfilter |= R200_CLAMP_S_MIRROR_CLAMP_GL;
 105       is_clamp_to_border = GL_TRUE;
 106       break;
 107    default:
 108       _mesa_problem(NULL, "bad S wrap mode in %s", __FUNCTION__);
 109    }
 110
 111    if (tObj->Target != GL_TEXTURE_1D) {
 112       switch ( twrap ) {
 113       case GL_REPEAT:
 114          t->pp_txfilter |= R200_CLAMP_T_WRAP;
 115          break;
 116       case GL_CLAMP:
 117          t->pp_txfilter |= R200_CLAMP_T_CLAMP_GL;
 118          is_clamp = GL_TRUE;
 119          break;
 120       case GL_CLAMP_TO_EDGE:
 121          t->pp_txfilter |= R200_CLAMP_T_CLAMP_LAST;
 122          break;
 123       case GL_CLAMP_TO_BORDER:
 124          t->pp_txfilter |= R200_CLAMP_T_CLAMP_GL;
 125          is_clamp_to_border = GL_TRUE;
 126          break;
 127       case GL_MIRRORED_REPEAT:
 128          t->pp_txfilter |= R200_CLAMP_T_MIRROR;
 129          break;
 130       case GL_MIRROR_CLAMP_EXT:
 131          t->pp_txfilter |= R200_CLAMP_T_MIRROR_CLAMP_GL;
 132          is_clamp = GL_TRUE;
 133          break;
 134       case GL_MIRROR_CLAMP_TO_EDGE_EXT:
 135          t->pp_txfilter |= R200_CLAMP_T_MIRROR_CLAMP_LAST;
 136          break;
 137       case GL_MIRROR_CLAMP_TO_BORDER_EXT:
 138          t->pp_txfilter |= R200_CLAMP_T_MIRROR_CLAMP_GL;
 139          is_clamp_to_border = GL_TRUE;
 140          break;
 141       default:
 142          _mesa_problem(NULL, "bad T wrap mode in %s", __FUNCTION__);
 143       }
 144    }
 145
 146    t->pp_txformat_x &= ~R200_CLAMP_Q_MASK;
 147
 148    switch ( rwrap ) {
 149    case GL_REPEAT:
 150       t->pp_txformat_x |= R200_CLAMP_Q_WRAP;
 151       break;
 152    case GL_CLAMP:
 153       t->pp_txformat_x |= R200_CLAMP_Q_CLAMP_GL;
 154       is_clamp = GL_TRUE;
 155       break;
 156    case GL_CLAMP_TO_EDGE:
 157       t->pp_txformat_x |= R200_CLAMP_Q_CLAMP_LAST;
 158       break;
 159    case GL_CLAMP_TO_BORDER:
 160       t->pp_txformat_x |= R200_CLAMP_Q_CLAMP_GL;
 161       is_clamp_to_border = GL_TRUE;
 162       break;
 163    case GL_MIRRORED_REPEAT:
 164       t->pp_txformat_x |= R200_CLAMP_Q_MIRROR;
 165       break;
 166    case GL_MIRROR_CLAMP_EXT:
 167       t->pp_txformat_x |= R200_CLAMP_Q_MIRROR_CLAMP_GL;
 168       is_clamp = GL_TRUE;
 169       break;
 170    case GL_MIRROR_CLAMP_TO_EDGE_EXT:
 171       t->pp_txformat_x |= R200_CLAMP_Q_MIRROR_CLAMP_LAST;
 172       break;
 173    case GL_MIRROR_CLAMP_TO_BORDER_EXT:
 174       t->pp_txformat_x |= R200_CLAMP_Q_MIRROR_CLAMP_GL;
 175       is_clamp_to_border = GL_TRUE;
 176       break;
 177    default:
 178       _mesa_problem(NULL, "bad R wrap mode in %s", __FUNCTION__);
 179    }
 180
 181    if ( is_clamp_to_border ) {
 182       t->pp_txfilter |= R200_BORDER_MODE_D3D;
 183    }
 184
 185    t->border_fallback = (is_clamp && is_clamp_to_border);
 186 }
 187
 188 static void r200SetTexMaxAnisotropy( radeonTexObjPtr t, GLfloat max )
 189 {
 190    t->pp_txfilter &= ~R200_MAX_ANISO_MASK;
 191    radeon_print(RADEON_TEXTURE, RADEON_TRACE,
 192         "%s(tex %p) max %f.\n",
 193         __func__, t, max);
 194
 195    if ( max <= 1.0 ) {
 196       t->pp_txfilter |= R200_MAX_ANISO_1_TO_1;
 197    } else if ( max <= 2.0 ) {
 198       t->pp_txfilter |= R200_MAX_ANISO_2_TO_1;
 199    } else if ( max <= 4.0 ) {
 200       t->pp_txfilter |= R200_MAX_ANISO_4_TO_1;
 201    } else if ( max <= 8.0 ) {
 202       t->pp_txfilter |= R200_MAX_ANISO_8_TO_1;
 203    } else {
 204       t->pp_txfilter |= R200_MAX_ANISO_16_TO_1;
 205    }
 206 }
 207
 208 /**
 209  * Set the texture magnification and minification modes.
 210  *
 211  * \param t Texture whose filter modes are to be set
 212  * \param minf Texture minification mode
 213  * \param magf Texture magnification mode
 214  */
 215
 216 static void r200SetTexFilter( radeonTexObjPtr t, GLenum minf, GLenum magf )
 217 {
 218    GLuint anisotropy = (t->pp_txfilter & R200_MAX_ANISO_MASK);
 219
 220    /* Force revalidation to account for switches from/to mipmapping. */
 221    t->validated = GL_FALSE;
 222
 223    t->pp_txfilter &= ~(R200_MIN_FILTER_MASK | R200_MAG_FILTER_MASK);
 224    t->pp_txformat_x &= ~R200_VOLUME_FILTER_MASK;
 225
 226    radeon_print(RADEON_TEXTURE, RADEON_TRACE,
 227         "%s(tex %p) minf %s, maxf %s, anisotropy %d.\n",
 228         __func__, t,
 229         _mesa_lookup_enum_by_nr(minf),
 230         _mesa_lookup_enum_by_nr(magf),
 231         anisotropy);
 232
 233    if ( anisotropy == R200_MAX_ANISO_1_TO_1 ) {
 234       switch ( minf ) {
 235       case GL_NEAREST:
 236          t->pp_txfilter |= R200_MIN_FILTER_NEAREST;
 237          break;
 238       case GL_LINEAR:
 239          t->pp_txfilter |= R200_MIN_FILTER_LINEAR;
 240          break;
 241       case GL_NEAREST_MIPMAP_NEAREST:
 242          t->pp_txfilter |= R200_MIN_FILTER_NEAREST_MIP_NEAREST;
 243          break;
 244       case GL_NEAREST_MIPMAP_LINEAR:
 245          t->pp_txfilter |= R200_MIN_FILTER_LINEAR_MIP_NEAREST;
 246          break;
 247       case GL_LINEAR_MIPMAP_NEAREST:
 248          t->pp_txfilter |= R200_MIN_FILTER_NEAREST_MIP_LINEAR;
 249          break;
 250       case GL_LINEAR_MIPMAP_LINEAR:
 251          t->pp_txfilter |= R200_MIN_FILTER_LINEAR_MIP_LINEAR;
 252          break;
 253       }
 254    } else {
 255       switch ( minf ) {
 256       case GL_NEAREST:
 257          t->pp_txfilter |= R200_MIN_FILTER_ANISO_NEAREST;
 258          break;
 259       case GL_LINEAR:
 260          t->pp_txfilter |= R200_MIN_FILTER_ANISO_LINEAR;
 261          break;
 262       case GL_NEAREST_MIPMAP_NEAREST:
 263       case GL_LINEAR_MIPMAP_NEAREST:
 264          t->pp_txfilter |= R200_MIN_FILTER_ANISO_NEAREST_MIP_NEAREST;
 265          break;
 266       case GL_NEAREST_MIPMAP_LINEAR:
 267       case GL_LINEAR_MIPMAP_LINEAR:
 268          t->pp_txfilter |= R200_MIN_FILTER_ANISO_NEAREST_MIP_LINEAR;
 269          break;
 270       }
 271    }
 272
 273    /* Note we don't have 3D mipmaps so only use the mag filter setting
 274     * to set the 3D texture filter mode.
 275     */
 276    switch ( magf ) {
 277    case GL_NEAREST:
 278       t->pp_txfilter |= R200_MAG_FILTER_NEAREST;
 279       t->pp_txformat_x |= R200_VOLUME_FILTER_NEAREST;
 280       break;
 281    case GL_LINEAR:
 282       t->pp_txfilter |= R200_MAG_FILTER_LINEAR;
 283       t->pp_txformat_x |= R200_VOLUME_FILTER_LINEAR;
 284       break;
 285    }
 286 }
 287
 288 static void r200SetTexBorderColor( radeonTexObjPtr t, const GLfloat color[4] )
 289 {
 290    GLubyte c[4];
 291    CLAMPED_FLOAT_TO_UBYTE(c[0], color[0]);
 292    CLAMPED_FLOAT_TO_UBYTE(c[1], color[1]);
 293    CLAMPED_FLOAT_TO_UBYTE(c[2], color[2]);
 294    CLAMPED_FLOAT_TO_UBYTE(c[3], color[3]);
 295    t->pp_border_color = radeonPackColor( 4, c[0], c[1], c[2], c[3] );
 296 }
 297
 298 static void r200TexEnv( struct gl_context *ctx, GLenum target,
 299                           GLenum pname, const GLfloat *param )
 300 {
 301    r200ContextPtr rmesa = R200_CONTEXT(ctx);
 302    GLuint unit = ctx->Texture.CurrentUnit;
 303    struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit];
 304
 305    radeon_print(RADEON_TEXTURE | RADEON_STATE, RADEON_VERBOSE, "%s( %s )\n",
 306                __FUNCTION__, _mesa_lookup_enum_by_nr( pname ) );
 307
 308    /* This is incorrect: Need to maintain this data for each of
 309     * GL_TEXTURE_{123}D, GL_TEXTURE_RECTANGLE_NV, etc, and switch
 310     * between them according to _ReallyEnabled.
 311     */
 312    switch ( pname ) {
 313    case GL_TEXTURE_ENV_COLOR: {
 314       GLubyte c[4];
 315       GLuint envColor;
 316       _mesa_unclamped_float_rgba_to_ubyte(c, texUnit->EnvColor);
 317       envColor = radeonPackColor( 4, c[0], c[1], c[2], c[3] );
 318       if ( rmesa->hw.tf.cmd[TF_TFACTOR_0 + unit] != envColor ) {
 319          R200_STATECHANGE( rmesa, tf );
 320          rmesa->hw.tf.cmd[TF_TFACTOR_0 + unit] = envColor;
 321       }
 322       break;
 323    }
 324
 325    case GL_TEXTURE_LOD_BIAS_EXT: {
 326       GLfloat bias, min;
 327       GLuint b;
 328       const int fixed_one = R200_LOD_BIAS_FIXED_ONE;
 329
 330       /* The R200's LOD bias is a signed 2's complement value with a
 331        * range of -16.0 <= bias < 16.0.
 332        *
 333        * NOTE: Add a small bias to the bias for conform mipsel.c test.
 334        */
 335       bias = *param;
 336       min = driQueryOptionb (&rmesa->radeon.optionCache, "no_neg_lod_bias") ?
 337           0.0 : -16.0;
 338       bias = CLAMP( bias, min, 16.0 );
 339       b = ((int)(bias * fixed_one)
 340                 + R200_LOD_BIAS_CORRECTION) & R200_LOD_BIAS_MASK;
 341
 342       if ( (rmesa->hw.tex[unit].cmd[TEX_PP_TXFORMAT_X] & R200_LOD_BIAS_MASK) != b ) {
 343          R200_STATECHANGE( rmesa, tex[unit] );
 344          rmesa->hw.tex[unit].cmd[TEX_PP_TXFORMAT_X] &= ~R200_LOD_BIAS_MASK;
 345          rmesa->hw.tex[unit].cmd[TEX_PP_TXFORMAT_X] |= b;
 346       }
 347       break;
 348    }
 349    case GL_COORD_REPLACE_ARB:
 350       if (ctx->Point.PointSprite) {
 351          R200_STATECHANGE( rmesa, spr );
 352          if ((GLenum)param[0]) {
 353             rmesa->hw.spr.cmd[SPR_POINT_SPRITE_CNTL] |= R200_PS_GEN_TEX_0 << unit;
 354          } else {
 355             rmesa->hw.spr.cmd[SPR_POINT_SPRITE_CNTL] &= ~(R200_PS_GEN_TEX_0 << unit);
 356          }
 357       }
 358       break;
 359    default:
 360       return;
 361    }
 362 }
 363
 364 void r200TexUpdateParameters(struct gl_context *ctx, GLuint unit)
 365 {
 366    struct gl_sampler_object *samp = _mesa_get_samplerobj(ctx, unit);
 367    radeonTexObj* t = radeon_tex_obj(ctx->Texture.Unit[unit]._Current);
 368
 369    r200SetTexMaxAnisotropy(t , samp->MaxAnisotropy);
 370    r200SetTexFilter(t, samp->MinFilter, samp->MagFilter);
 371    r200SetTexWrap(t, samp->WrapS, samp->WrapT, samp->WrapR);
 372    r200SetTexBorderColor(t, samp->BorderColor.f);
 373 }
 374
 375 /**
 376  * Changes variables and flags for a state update, which will happen at the
 377  * next UpdateTextureState
 378  */
 379 static void r200TexParameter( struct gl_context *ctx, GLenum target,
 380                                 struct gl_texture_object *texObj,
 381                                 GLenum pname, const GLfloat *params )
 382 {
 383    radeonTexObj* t = radeon_tex_obj(texObj);
 384
 385    radeon_print(RADEON_TEXTURE | RADEON_STATE, RADEON_VERBOSE,
 386                 "%s(%p, tex %p)  target %s, pname %s\n",
 387                 __FUNCTION__, ctx, texObj,
 388                 _mesa_lookup_enum_by_nr( target ),
 389                _mesa_lookup_enum_by_nr( pname ) );
 390
 391    switch ( pname ) {
 392    case GL_TEXTURE_MIN_FILTER:
 393    case GL_TEXTURE_MAG_FILTER:
 394    case GL_TEXTURE_MAX_ANISOTROPY_EXT:
 395    case GL_TEXTURE_WRAP_S:
 396    case GL_TEXTURE_WRAP_T:
 397    case GL_TEXTURE_WRAP_R:
 398    case GL_TEXTURE_BORDER_COLOR:
 399    case GL_TEXTURE_BASE_LEVEL:
 400    case GL_TEXTURE_MAX_LEVEL:
 401    case GL_TEXTURE_MIN_LOD:
 402    case GL_TEXTURE_MAX_LOD:
 403       t->validated = GL_FALSE;
 404       break;
 405
 406    default:
 407       return;
 408    }
 409 }
 410
 411
 412 static void r200DeleteTexture(struct gl_context * ctx, struct gl_texture_object *texObj)
 413 {
 414    r200ContextPtr rmesa = R200_CONTEXT(ctx);
 415    radeonTexObj* t = radeon_tex_obj(texObj);
 416
 417    radeon_print(RADEON_TEXTURE | RADEON_STATE, RADEON_NORMAL,
 418            "%s( %p (target = %s) )\n", __FUNCTION__,
 419            (void *)texObj,
 420            _mesa_lookup_enum_by_nr(texObj->Target));
 421
 422    if (rmesa) {
 423       int i;
 424       radeon_firevertices(&rmesa->radeon);
 425       for ( i = 0 ; i < rmesa->radeon.glCtx->Const.MaxTextureUnits ; i++ ) {
 426          if ( t == rmesa->state.texture.unit[i].texobj ) {
 427             rmesa->state.texture.unit[i].texobj = NULL;
 428             rmesa->hw.tex[i].dirty = GL_FALSE;
 429             rmesa->hw.cube[i].dirty = GL_FALSE;
 430          }
 431       }
 432    }
 433
 434    radeon_miptree_unreference(&t->mt);
 435
 436    _mesa_delete_texture_object(ctx, texObj);
 437 }
 438
 439 /* Need:
 440  *  - Same GEN_MODE for all active bits
 441  *  - Same EyePlane/ObjPlane for all active bits when using Eye/Obj
 442  *  - STRQ presumably all supported (matrix means incoming R values
 443  *    can end up in STQ, this has implications for vertex support,
 444  *    presumably ok if maos is used, though?)
 445  *
 446  * Basically impossible to do this on the fly - just collect some
 447  * basic info & do the checks from ValidateState().
 448  */
 449 static void r200TexGen( struct gl_context *ctx,
 450                           GLenum coord,
 451                           GLenum pname,
 452                           const GLfloat *params )
 453 {
 454    r200ContextPtr rmesa = R200_CONTEXT(ctx);
 455    GLuint unit = ctx->Texture.CurrentUnit;
 456    rmesa->recheck_texgen[unit] = GL_TRUE;
 457 }
 458
 459
 460 /**
 461  * Allocate a new texture object.
 462  * Called via ctx->Driver.NewTextureObject.
 463  * Note: this function will be called during context creation to
 464  * allocate the default texture objects.
 465  * Fixup MaxAnisotropy according to user preference.
 466  */
 467 static struct gl_texture_object *r200NewTextureObject(struct gl_context * ctx,
 468                                                       GLuint name,
 469                                                       GLenum target)
 470 {
 471    r200ContextPtr rmesa = R200_CONTEXT(ctx);
 472    radeonTexObj* t = CALLOC_STRUCT(radeon_tex_obj);
 473
 474
 475    radeon_print(RADEON_STATE | RADEON_TEXTURE, RADEON_NORMAL,
 476            "%s(%p) target %s, new texture %p.\n",
 477            __FUNCTION__, ctx,
 478            _mesa_lookup_enum_by_nr(target), t);
 479
 480    _mesa_initialize_texture_object(&t->base, name, target);
 481    t->base.Sampler.MaxAnisotropy = rmesa->radeon.initialMaxAnisotropy;
 482
 483    /* Initialize hardware state */
 484    r200SetTexWrap( t, t->base.Sampler.WrapS, t->base.Sampler.WrapT, t->base.Sampler.WrapR );
 485    r200SetTexMaxAnisotropy( t, t->base.Sampler.MaxAnisotropy );
 486    r200SetTexFilter(t, t->base.Sampler.MinFilter, t->base.Sampler.MagFilter);
 487    r200SetTexBorderColor(t, t->base.Sampler.BorderColor.f);
 488
 489    return &t->base;
 490 }
 491
 492 static struct gl_sampler_object *
 493 r200NewSamplerObject(struct gl_context *ctx, GLuint name)
 494 {
 495    r200ContextPtr rmesa = R200_CONTEXT(ctx);
 496    struct gl_sampler_object *samp = _mesa_new_sampler_object(ctx, name);
 497    if (samp)
 498       samp->MaxAnisotropy = rmesa->radeon.initialMaxAnisotropy;
 499    return samp;
 500 }
 501
 502
 503
 504 void r200InitTextureFuncs( radeonContextPtr radeon, struct dd_function_table *functions )
 505 {
 506    /* Note: we only plug in the functions we implement in the driver
 507     * since _mesa_init_driver_functions() was already called.
 508     */
 509
 510    radeon_init_common_texture_funcs(radeon, functions);
 511
 512    functions->NewTextureObject          = r200NewTextureObject;
 513    //   functions->BindTexture          = r200BindTexture;
 514    functions->DeleteTexture             = r200DeleteTexture;
 515
 516    functions->TexEnv                    = r200TexEnv;
 517    functions->TexParameter              = r200TexParameter;
 518    functions->TexGen                    = r200TexGen;
 519    functions->NewSamplerObject          = r200NewSamplerObject;
 520 }