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/simple_list.h"
  41 #include "main/texformat.h"
  42 #include "main/texstore.h"
  43 #include "main/teximage.h"
  44 #include "main/texobj.h"
  45
  46 #include "radeon_mipmap_tree.h"
  47 #include "r200_context.h"
  48 #include "r200_state.h"
  49 #include "r200_ioctl.h"
  50 #include "r200_swtcl.h"
  51 #include "r200_tex.h"
  52
  53 #include "xmlpool.h"
  54
  55
  56
  57 /**
  58  * Set the texture wrap modes.
  59  *
  60  * \param t Texture object whose wrap modes are to be set
  61  * \param swrap Wrap mode for the \a s texture coordinate
  62  * \param twrap Wrap mode for the \a t texture coordinate
  63  */
  64
  65 static void r200SetTexWrap( radeonTexObjPtr t, GLenum swrap, GLenum twrap, GLenum rwrap )
  66 {
  67    GLboolean  is_clamp = GL_FALSE;
  68    GLboolean  is_clamp_to_border = GL_FALSE;
  69    struct gl_texture_object *tObj = &t->base;
  70
  71    t->pp_txfilter &= ~(R200_CLAMP_S_MASK | R200_CLAMP_T_MASK | R200_BORDER_MODE_D3D);
  72
  73    switch ( swrap ) {
  74    case GL_REPEAT:
  75       t->pp_txfilter |= R200_CLAMP_S_WRAP;
  76       break;
  77    case GL_CLAMP:
  78       t->pp_txfilter |= R200_CLAMP_S_CLAMP_GL;
  79       is_clamp = GL_TRUE;
  80       break;
  81    case GL_CLAMP_TO_EDGE:
  82       t->pp_txfilter |= R200_CLAMP_S_CLAMP_LAST;
  83       break;
  84    case GL_CLAMP_TO_BORDER:
  85       t->pp_txfilter |= R200_CLAMP_S_CLAMP_GL;
  86       is_clamp_to_border = GL_TRUE;
  87       break;
  88    case GL_MIRRORED_REPEAT:
  89       t->pp_txfilter |= R200_CLAMP_S_MIRROR;
  90       break;
  91    case GL_MIRROR_CLAMP_EXT:
  92       t->pp_txfilter |= R200_CLAMP_S_MIRROR_CLAMP_GL;
  93       is_clamp = GL_TRUE;
  94       break;
  95    case GL_MIRROR_CLAMP_TO_EDGE_EXT:
  96       t->pp_txfilter |= R200_CLAMP_S_MIRROR_CLAMP_LAST;
  97       break;
  98    case GL_MIRROR_CLAMP_TO_BORDER_EXT:
  99       t->pp_txfilter |= R200_CLAMP_S_MIRROR_CLAMP_GL;
 100       is_clamp_to_border = GL_TRUE;
 101       break;
 102    default:
 103       _mesa_problem(NULL, "bad S wrap mode in %s", __FUNCTION__);
 104    }
 105
 106    if (tObj->Target != GL_TEXTURE_1D) {
 107       switch ( twrap ) {
 108       case GL_REPEAT:
 109          t->pp_txfilter |= R200_CLAMP_T_WRAP;
 110          break;
 111       case GL_CLAMP:
 112          t->pp_txfilter |= R200_CLAMP_T_CLAMP_GL;
 113          is_clamp = GL_TRUE;
 114          break;
 115       case GL_CLAMP_TO_EDGE:
 116          t->pp_txfilter |= R200_CLAMP_T_CLAMP_LAST;
 117          break;
 118       case GL_CLAMP_TO_BORDER:
 119          t->pp_txfilter |= R200_CLAMP_T_CLAMP_GL;
 120          is_clamp_to_border = GL_TRUE;
 121          break;
 122       case GL_MIRRORED_REPEAT:
 123          t->pp_txfilter |= R200_CLAMP_T_MIRROR;
 124          break;
 125       case GL_MIRROR_CLAMP_EXT:
 126          t->pp_txfilter |= R200_CLAMP_T_MIRROR_CLAMP_GL;
 127          is_clamp = GL_TRUE;
 128          break;
 129       case GL_MIRROR_CLAMP_TO_EDGE_EXT:
 130          t->pp_txfilter |= R200_CLAMP_T_MIRROR_CLAMP_LAST;
 131          break;
 132       case GL_MIRROR_CLAMP_TO_BORDER_EXT:
 133          t->pp_txfilter |= R200_CLAMP_T_MIRROR_CLAMP_GL;
 134          is_clamp_to_border = GL_TRUE;
 135          break;
 136       default:
 137          _mesa_problem(NULL, "bad T wrap mode in %s", __FUNCTION__);
 138       }
 139    }
 140
 141    t->pp_txformat_x &= ~R200_CLAMP_Q_MASK;
 142
 143    switch ( rwrap ) {
 144    case GL_REPEAT:
 145       t->pp_txformat_x |= R200_CLAMP_Q_WRAP;
 146       break;
 147    case GL_CLAMP:
 148       t->pp_txformat_x |= R200_CLAMP_Q_CLAMP_GL;
 149       is_clamp = GL_TRUE;
 150       break;
 151    case GL_CLAMP_TO_EDGE:
 152       t->pp_txformat_x |= R200_CLAMP_Q_CLAMP_LAST;
 153       break;
 154    case GL_CLAMP_TO_BORDER:
 155       t->pp_txformat_x |= R200_CLAMP_Q_CLAMP_GL;
 156       is_clamp_to_border = GL_TRUE;
 157       break;
 158    case GL_MIRRORED_REPEAT:
 159       t->pp_txformat_x |= R200_CLAMP_Q_MIRROR;
 160       break;
 161    case GL_MIRROR_CLAMP_EXT:
 162       t->pp_txformat_x |= R200_CLAMP_Q_MIRROR_CLAMP_GL;
 163       is_clamp = GL_TRUE;
 164       break;
 165    case GL_MIRROR_CLAMP_TO_EDGE_EXT:
 166       t->pp_txformat_x |= R200_CLAMP_Q_MIRROR_CLAMP_LAST;
 167       break;
 168    case GL_MIRROR_CLAMP_TO_BORDER_EXT:
 169       t->pp_txformat_x |= R200_CLAMP_Q_MIRROR_CLAMP_GL;
 170       is_clamp_to_border = GL_TRUE;
 171       break;
 172    default:
 173       _mesa_problem(NULL, "bad R wrap mode in %s", __FUNCTION__);
 174    }
 175
 176    if ( is_clamp_to_border ) {
 177       t->pp_txfilter |= R200_BORDER_MODE_D3D;
 178    }
 179
 180    t->border_fallback = (is_clamp && is_clamp_to_border);
 181 }
 182
 183 static void r200SetTexMaxAnisotropy( radeonTexObjPtr t, GLfloat max )
 184 {
 185    t->pp_txfilter &= ~R200_MAX_ANISO_MASK;
 186
 187    if ( max <= 1.0 ) {
 188       t->pp_txfilter |= R200_MAX_ANISO_1_TO_1;
 189    } else if ( max <= 2.0 ) {
 190       t->pp_txfilter |= R200_MAX_ANISO_2_TO_1;
 191    } else if ( max <= 4.0 ) {
 192       t->pp_txfilter |= R200_MAX_ANISO_4_TO_1;
 193    } else if ( max <= 8.0 ) {
 194       t->pp_txfilter |= R200_MAX_ANISO_8_TO_1;
 195    } else {
 196       t->pp_txfilter |= R200_MAX_ANISO_16_TO_1;
 197    }
 198 }
 199
 200 /**
 201  * Set the texture magnification and minification modes.
 202  *
 203  * \param t Texture whose filter modes are to be set
 204  * \param minf Texture minification mode
 205  * \param magf Texture magnification mode
 206  */
 207
 208 static void r200SetTexFilter( radeonTexObjPtr t, GLenum minf, GLenum magf )
 209 {
 210    GLuint anisotropy = (t->pp_txfilter & R200_MAX_ANISO_MASK);
 211
 212    /* Force revalidation to account for switches from/to mipmapping. */
 213    t->validated = GL_FALSE;
 214
 215    t->pp_txfilter &= ~(R200_MIN_FILTER_MASK | R200_MAG_FILTER_MASK);
 216    t->pp_txformat_x &= ~R200_VOLUME_FILTER_MASK;
 217
 218    if ( anisotropy == R200_MAX_ANISO_1_TO_1 ) {
 219       switch ( minf ) {
 220       case GL_NEAREST:
 221          t->pp_txfilter |= R200_MIN_FILTER_NEAREST;
 222          break;
 223       case GL_LINEAR:
 224          t->pp_txfilter |= R200_MIN_FILTER_LINEAR;
 225          break;
 226       case GL_NEAREST_MIPMAP_NEAREST:
 227          t->pp_txfilter |= R200_MIN_FILTER_NEAREST_MIP_NEAREST;
 228          break;
 229       case GL_NEAREST_MIPMAP_LINEAR:
 230          t->pp_txfilter |= R200_MIN_FILTER_LINEAR_MIP_NEAREST;
 231          break;
 232       case GL_LINEAR_MIPMAP_NEAREST:
 233          t->pp_txfilter |= R200_MIN_FILTER_NEAREST_MIP_LINEAR;
 234          break;
 235       case GL_LINEAR_MIPMAP_LINEAR:
 236          t->pp_txfilter |= R200_MIN_FILTER_LINEAR_MIP_LINEAR;
 237          break;
 238       }
 239    } else {
 240       switch ( minf ) {
 241       case GL_NEAREST:
 242          t->pp_txfilter |= R200_MIN_FILTER_ANISO_NEAREST;
 243          break;
 244       case GL_LINEAR:
 245          t->pp_txfilter |= R200_MIN_FILTER_ANISO_LINEAR;
 246          break;
 247       case GL_NEAREST_MIPMAP_NEAREST:
 248       case GL_LINEAR_MIPMAP_NEAREST:
 249          t->pp_txfilter |= R200_MIN_FILTER_ANISO_NEAREST_MIP_NEAREST;
 250          break;
 251       case GL_NEAREST_MIPMAP_LINEAR:
 252       case GL_LINEAR_MIPMAP_LINEAR:
 253          t->pp_txfilter |= R200_MIN_FILTER_ANISO_NEAREST_MIP_LINEAR;
 254          break;
 255       }
 256    }
 257
 258    /* Note we don't have 3D mipmaps so only use the mag filter setting
 259     * to set the 3D texture filter mode.
 260     */
 261    switch ( magf ) {
 262    case GL_NEAREST:
 263       t->pp_txfilter |= R200_MAG_FILTER_NEAREST;
 264       t->pp_txformat_x |= R200_VOLUME_FILTER_NEAREST;
 265       break;
 266    case GL_LINEAR:
 267       t->pp_txfilter |= R200_MAG_FILTER_LINEAR;
 268       t->pp_txformat_x |= R200_VOLUME_FILTER_LINEAR;
 269       break;
 270    }
 271 }
 272
 273 static void r200SetTexBorderColor( radeonTexObjPtr t, GLubyte c[4] )
 274 {
 275    t->pp_border_color = radeonPackColor( 4, c[0], c[1], c[2], c[3] );
 276 }
 277
 278
 279
 280
 281
 282 static void r200TexEnv( GLcontext *ctx, GLenum target,
 283                           GLenum pname, const GLfloat *param )
 284 {
 285    r200ContextPtr rmesa = R200_CONTEXT(ctx);
 286    GLuint unit = ctx->Texture.CurrentUnit;
 287    struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit];
 288
 289    if ( R200_DEBUG & DEBUG_STATE ) {
 290       fprintf( stderr, "%s( %s )\n",
 291                __FUNCTION__, _mesa_lookup_enum_by_nr( pname ) );
 292    }
 293
 294    /* This is incorrect: Need to maintain this data for each of
 295     * GL_TEXTURE_{123}D, GL_TEXTURE_RECTANGLE_NV, etc, and switch
 296     * between them according to _ReallyEnabled.
 297     */
 298    switch ( pname ) {
 299    case GL_TEXTURE_ENV_COLOR: {
 300       GLubyte c[4];
 301       GLuint envColor;
 302       UNCLAMPED_FLOAT_TO_RGBA_CHAN( c, texUnit->EnvColor );
 303       envColor = radeonPackColor( 4, c[0], c[1], c[2], c[3] );
 304       if ( rmesa->hw.tf.cmd[TF_TFACTOR_0 + unit] != envColor ) {
 305          R200_STATECHANGE( rmesa, tf );
 306          rmesa->hw.tf.cmd[TF_TFACTOR_0 + unit] = envColor;
 307       }
 308       break;
 309    }
 310
 311    case GL_TEXTURE_LOD_BIAS_EXT: {
 312       GLfloat bias, min;
 313       GLuint b;
 314       const int fixed_one = 0x8000000;
 315
 316       /* The R200's LOD bias is a signed 2's complement value with a
 317        * range of -16.0 <= bias < 16.0.
 318        *
 319        * NOTE: Add a small bias to the bias for conform mipsel.c test.
 320        */
 321       bias = *param + .01;
 322       min = driQueryOptionb (&rmesa->radeon.optionCache, "no_neg_lod_bias") ?
 323           0.0 : -16.0;
 324       bias = CLAMP( bias, min, 16.0 );
 325       b = (int)(bias * fixed_one) & R200_LOD_BIAS_MASK;
 326
 327       if ( (rmesa->hw.tex[unit].cmd[TEX_PP_TXFORMAT_X] & R200_LOD_BIAS_MASK) != b ) {
 328          R200_STATECHANGE( rmesa, tex[unit] );
 329          rmesa->hw.tex[unit].cmd[TEX_PP_TXFORMAT_X] &= ~R200_LOD_BIAS_MASK;
 330          rmesa->hw.tex[unit].cmd[TEX_PP_TXFORMAT_X] |= b;
 331       }
 332       break;
 333    }
 334    case GL_COORD_REPLACE_ARB:
 335       if (ctx->Point.PointSprite) {
 336          R200_STATECHANGE( rmesa, spr );
 337          if ((GLenum)param[0]) {
 338             rmesa->hw.spr.cmd[SPR_POINT_SPRITE_CNTL] |= R200_PS_GEN_TEX_0 << unit;
 339          } else {
 340             rmesa->hw.spr.cmd[SPR_POINT_SPRITE_CNTL] &= ~(R200_PS_GEN_TEX_0 << unit);
 341          }
 342       }
 343       break;
 344    default:
 345       return;
 346    }
 347 }
 348
 349
 350 /**
 351  * Changes variables and flags for a state update, which will happen at the
 352  * next UpdateTextureState
 353  */
 354
 355 static void r200TexParameter( GLcontext *ctx, GLenum target,
 356                                 struct gl_texture_object *texObj,
 357                                 GLenum pname, const GLfloat *params )
 358 {
 359    radeonTexObj* t = radeon_tex_obj(texObj);
 360
 361    if ( R200_DEBUG & (DEBUG_STATE|DEBUG_TEXTURE) ) {
 362       fprintf( stderr, "%s( %s )\n", __FUNCTION__,
 363                _mesa_lookup_enum_by_nr( pname ) );
 364    }
 365
 366    switch ( pname ) {
 367    case GL_TEXTURE_MIN_FILTER:
 368    case GL_TEXTURE_MAG_FILTER:
 369    case GL_TEXTURE_MAX_ANISOTROPY_EXT:
 370       r200SetTexMaxAnisotropy( t, texObj->MaxAnisotropy );
 371       r200SetTexFilter( t, texObj->MinFilter, texObj->MagFilter );
 372       break;
 373
 374    case GL_TEXTURE_WRAP_S:
 375    case GL_TEXTURE_WRAP_T:
 376    case GL_TEXTURE_WRAP_R:
 377       r200SetTexWrap( t, texObj->WrapS, texObj->WrapT, texObj->WrapR );
 378       break;
 379
 380    case GL_TEXTURE_BORDER_COLOR:
 381       r200SetTexBorderColor( t, texObj->_BorderChan );
 382       break;
 383
 384    case GL_TEXTURE_BASE_LEVEL:
 385    case GL_TEXTURE_MAX_LEVEL:
 386    case GL_TEXTURE_MIN_LOD:
 387    case GL_TEXTURE_MAX_LOD:
 388       /* This isn't the most efficient solution but there doesn't appear to
 389        * be a nice alternative.  Since there's no LOD clamping,
 390        * we just have to rely on loading the right subset of mipmap levels
 391        * to simulate a clamped LOD.
 392        */
 393       if (t->mt) {
 394          radeon_miptree_unreference(t->mt);
 395          t->mt = 0;
 396          t->validated = GL_FALSE;
 397       }
 398       break;
 399
 400    default:
 401       return;
 402    }
 403
 404    /* Mark this texobj as dirty (one bit per tex unit)
 405     */
 406    t->dirty_state = R200_TEX_ALL;
 407 }
 408
 409
 410 static void r200DeleteTexture(GLcontext * ctx, struct gl_texture_object *texObj)
 411 {
 412    r200ContextPtr rmesa = R200_CONTEXT(ctx);
 413    radeonTexObj* t = radeon_tex_obj(texObj);
 414
 415    if (RADEON_DEBUG & (DEBUG_STATE | DEBUG_TEXTURE)) {
 416       fprintf(stderr, "%s( %p (target = %s) )\n", __FUNCTION__,
 417               (void *)texObj,
 418               _mesa_lookup_enum_by_nr(texObj->Target));
 419    }
 420
 421    if (rmesa) {
 422       int i;
 423       R200_FIREVERTICES(rmesa);
 424       for ( i = 0 ; i < rmesa->radeon.glCtx->Const.MaxTextureUnits ; i++ ) {
 425          if ( t == rmesa->state.texture.unit[i].texobj ) {
 426             rmesa->state.texture.unit[i].texobj = NULL;
 427             rmesa->hw.tex[i].dirty = GL_FALSE;
 428             rmesa->hw.cube[i].dirty = GL_FALSE;
 429          }
 430       }
 431    }
 432
 433    if (t->mt) {
 434       radeon_miptree_unreference(t->mt);
 435       t->mt = 0;
 436    }
 437    _mesa_delete_texture_object(ctx, texObj);
 438 }
 439
 440 /* Need:
 441  *  - Same GEN_MODE for all active bits
 442  *  - Same EyePlane/ObjPlane for all active bits when using Eye/Obj
 443  *  - STRQ presumably all supported (matrix means incoming R values
 444  *    can end up in STQ, this has implications for vertex support,
 445  *    presumably ok if maos is used, though?)
 446  *
 447  * Basically impossible to do this on the fly - just collect some
 448  * basic info & do the checks from ValidateState().
 449  */
 450 static void r200TexGen( GLcontext *ctx,
 451                           GLenum coord,
 452                           GLenum pname,
 453                           const GLfloat *params )
 454 {
 455    r200ContextPtr rmesa = R200_CONTEXT(ctx);
 456    GLuint unit = ctx->Texture.CurrentUnit;
 457    rmesa->recheck_texgen[unit] = GL_TRUE;
 458 }
 459
 460
 461 /**
 462  * Allocate a new texture object.
 463  * Called via ctx->Driver.NewTextureObject.
 464  * Note: this function will be called during context creation to
 465  * allocate the default texture objects.
 466  * Fixup MaxAnisotropy according to user preference.
 467  */
 468 static struct gl_texture_object *r200NewTextureObject(GLcontext * ctx,
 469                                                       GLuint name,
 470                                                       GLenum target)
 471 {
 472    r200ContextPtr rmesa = R200_CONTEXT(ctx);
 473    radeonTexObj* t = CALLOC_STRUCT(radeon_tex_obj);
 474
 475
 476    if (RADEON_DEBUG & (DEBUG_STATE | DEBUG_TEXTURE)) {
 477      fprintf(stderr, "%s( %p (target = %s) )\n", __FUNCTION__,
 478              t, _mesa_lookup_enum_by_nr(target));
 479    }
 480
 481    _mesa_initialize_texture_object(&t->base, name, target);
 482    t->base.MaxAnisotropy = rmesa->radeon.initialMaxAnisotropy;
 483
 484    /* Initialize hardware state */
 485    r200SetTexWrap( t, t->base.WrapS, t->base.WrapT, t->base.WrapR );
 486    r200SetTexMaxAnisotropy( t, t->base.MaxAnisotropy );
 487    r200SetTexFilter(t, t->base.MinFilter, t->base.MagFilter);
 488    r200SetTexBorderColor(t, t->base._BorderChan);
 489
 490    return &t->base;
 491 }
 492
 493
 494
 495 void r200InitTextureFuncs( struct dd_function_table *functions )
 496 {
 497    /* Note: we only plug in the functions we implement in the driver
 498     * since _mesa_init_driver_functions() was already called.
 499     */
 500    functions->ChooseTextureFormat       = radeonChooseTextureFormat;
 501    functions->TexImage1D                = radeonTexImage1D;
 502    functions->TexImage2D                = radeonTexImage2D;
 503 #if ENABLE_HW_3D_TEXTURE
 504    functions->TexImage3D                = radeonTexImage3D;
 505 #else
 506    functions->TexImage3D                = _mesa_store_teximage3d;
 507 #endif
 508    functions->TexSubImage1D             = radeonTexSubImage1D;
 509    functions->TexSubImage2D             = radeonTexSubImage2D;
 510 #if ENABLE_HW_3D_TEXTURE
 511    functions->TexSubImage3D             = radeonTexSubImage3D;
 512 #else
 513    functions->TexSubImage3D             = _mesa_store_texsubimage3d;
 514 #endif
 515    functions->NewTextureObject          = r200NewTextureObject;
 516    //   functions->BindTexture          = r200BindTexture;
 517    functions->DeleteTexture             = r200DeleteTexture;
 518    functions->IsTextureResident         = driIsTextureResident;
 519
 520    functions->TexEnv                    = r200TexEnv;
 521    functions->TexParameter              = r200TexParameter;
 522    functions->TexGen                    = r200TexGen;
 523
 524    functions->CompressedTexImage2D      = radeonCompressedTexImage2D;
 525    functions->CompressedTexSubImage2D   = radeonCompressedTexSubImage2D;
 526
 527    functions->GenerateMipmap = radeonGenerateMipmap;
 528
 529    functions->NewTextureImage = radeonNewTextureImage;
 530    functions->FreeTexImageData = radeonFreeTexImageData;
 531    functions->MapTexture = radeonMapTexture;
 532    functions->UnmapTexture = radeonUnmapTexture;
 533
 534    driInitTextureFormats();
 535
 536 }