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/texstore.h"
  42 #include "main/teximage.h"
  43 #include "main/texobj.h"
  44
  45 #include "radeon_mipmap_tree.h"
  46 #include "r200_context.h"
  47 #include "r200_ioctl.h"
  48 #include "r200_tex.h"
  49
  50 #include "xmlpool.h"
  51
  52
  53
  54 /**
  55  * Set the texture wrap modes.
  56  *
  57  * \param t Texture object whose wrap modes are to be set
  58  * \param swrap Wrap mode for the \a s texture coordinate
  59  * \param twrap Wrap mode for the \a t texture coordinate
  60  */
  61
  62 static void r200SetTexWrap( radeonTexObjPtr t, GLenum swrap, GLenum twrap, GLenum rwrap )
  63 {
  64    GLboolean  is_clamp = GL_FALSE;
  65    GLboolean  is_clamp_to_border = GL_FALSE;
  66    struct gl_texture_object *tObj = &t->base;
  67
  68    t->pp_txfilter &= ~(R200_CLAMP_S_MASK | R200_CLAMP_T_MASK | R200_BORDER_MODE_D3D);
  69
  70    switch ( swrap ) {
  71    case GL_REPEAT:
  72       t->pp_txfilter |= R200_CLAMP_S_WRAP;
  73       break;
  74    case GL_CLAMP:
  75       t->pp_txfilter |= R200_CLAMP_S_CLAMP_GL;
  76       is_clamp = GL_TRUE;
  77       break;
  78    case GL_CLAMP_TO_EDGE:
  79       t->pp_txfilter |= R200_CLAMP_S_CLAMP_LAST;
  80       break;
  81    case GL_CLAMP_TO_BORDER:
  82       t->pp_txfilter |= R200_CLAMP_S_CLAMP_GL;
  83       is_clamp_to_border = GL_TRUE;
  84       break;
  85    case GL_MIRRORED_REPEAT:
  86       t->pp_txfilter |= R200_CLAMP_S_MIRROR;
  87       break;
  88    case GL_MIRROR_CLAMP_EXT:
  89       t->pp_txfilter |= R200_CLAMP_S_MIRROR_CLAMP_GL;
  90       is_clamp = GL_TRUE;
  91       break;
  92    case GL_MIRROR_CLAMP_TO_EDGE_EXT:
  93       t->pp_txfilter |= R200_CLAMP_S_MIRROR_CLAMP_LAST;
  94       break;
  95    case GL_MIRROR_CLAMP_TO_BORDER_EXT:
  96       t->pp_txfilter |= R200_CLAMP_S_MIRROR_CLAMP_GL;
  97       is_clamp_to_border = GL_TRUE;
  98       break;
  99    default:
 100       _mesa_problem(NULL, "bad S wrap mode in %s", __FUNCTION__);
 101    }
 102
 103    if (tObj->Target != GL_TEXTURE_1D) {
 104       switch ( twrap ) {
 105       case GL_REPEAT:
 106          t->pp_txfilter |= R200_CLAMP_T_WRAP;
 107          break;
 108       case GL_CLAMP:
 109          t->pp_txfilter |= R200_CLAMP_T_CLAMP_GL;
 110          is_clamp = GL_TRUE;
 111          break;
 112       case GL_CLAMP_TO_EDGE:
 113          t->pp_txfilter |= R200_CLAMP_T_CLAMP_LAST;
 114          break;
 115       case GL_CLAMP_TO_BORDER:
 116          t->pp_txfilter |= R200_CLAMP_T_CLAMP_GL;
 117          is_clamp_to_border = GL_TRUE;
 118          break;
 119       case GL_MIRRORED_REPEAT:
 120          t->pp_txfilter |= R200_CLAMP_T_MIRROR;
 121          break;
 122       case GL_MIRROR_CLAMP_EXT:
 123          t->pp_txfilter |= R200_CLAMP_T_MIRROR_CLAMP_GL;
 124          is_clamp = GL_TRUE;
 125          break;
 126       case GL_MIRROR_CLAMP_TO_EDGE_EXT:
 127          t->pp_txfilter |= R200_CLAMP_T_MIRROR_CLAMP_LAST;
 128          break;
 129       case GL_MIRROR_CLAMP_TO_BORDER_EXT:
 130          t->pp_txfilter |= R200_CLAMP_T_MIRROR_CLAMP_GL;
 131          is_clamp_to_border = GL_TRUE;
 132          break;
 133       default:
 134          _mesa_problem(NULL, "bad T wrap mode in %s", __FUNCTION__);
 135       }
 136    }
 137
 138    t->pp_txformat_x &= ~R200_CLAMP_Q_MASK;
 139
 140    switch ( rwrap ) {
 141    case GL_REPEAT:
 142       t->pp_txformat_x |= R200_CLAMP_Q_WRAP;
 143       break;
 144    case GL_CLAMP:
 145       t->pp_txformat_x |= R200_CLAMP_Q_CLAMP_GL;
 146       is_clamp = GL_TRUE;
 147       break;
 148    case GL_CLAMP_TO_EDGE:
 149       t->pp_txformat_x |= R200_CLAMP_Q_CLAMP_LAST;
 150       break;
 151    case GL_CLAMP_TO_BORDER:
 152       t->pp_txformat_x |= R200_CLAMP_Q_CLAMP_GL;
 153       is_clamp_to_border = GL_TRUE;
 154       break;
 155    case GL_MIRRORED_REPEAT:
 156       t->pp_txformat_x |= R200_CLAMP_Q_MIRROR;
 157       break;
 158    case GL_MIRROR_CLAMP_EXT:
 159       t->pp_txformat_x |= R200_CLAMP_Q_MIRROR_CLAMP_GL;
 160       is_clamp = GL_TRUE;
 161       break;
 162    case GL_MIRROR_CLAMP_TO_EDGE_EXT:
 163       t->pp_txformat_x |= R200_CLAMP_Q_MIRROR_CLAMP_LAST;
 164       break;
 165    case GL_MIRROR_CLAMP_TO_BORDER_EXT:
 166       t->pp_txformat_x |= R200_CLAMP_Q_MIRROR_CLAMP_GL;
 167       is_clamp_to_border = GL_TRUE;
 168       break;
 169    default:
 170       _mesa_problem(NULL, "bad R wrap mode in %s", __FUNCTION__);
 171    }
 172
 173    if ( is_clamp_to_border ) {
 174       t->pp_txfilter |= R200_BORDER_MODE_D3D;
 175    }
 176
 177    t->border_fallback = (is_clamp && is_clamp_to_border);
 178 }
 179
 180 static void r200SetTexMaxAnisotropy( radeonTexObjPtr t, GLfloat max )
 181 {
 182    t->pp_txfilter &= ~R200_MAX_ANISO_MASK;
 183
 184    if ( max <= 1.0 ) {
 185       t->pp_txfilter |= R200_MAX_ANISO_1_TO_1;
 186    } else if ( max <= 2.0 ) {
 187       t->pp_txfilter |= R200_MAX_ANISO_2_TO_1;
 188    } else if ( max <= 4.0 ) {
 189       t->pp_txfilter |= R200_MAX_ANISO_4_TO_1;
 190    } else if ( max <= 8.0 ) {
 191       t->pp_txfilter |= R200_MAX_ANISO_8_TO_1;
 192    } else {
 193       t->pp_txfilter |= R200_MAX_ANISO_16_TO_1;
 194    }
 195 }
 196
 197 /**
 198  * Set the texture magnification and minification modes.
 199  *
 200  * \param t Texture whose filter modes are to be set
 201  * \param minf Texture minification mode
 202  * \param magf Texture magnification mode
 203  */
 204
 205 static void r200SetTexFilter( radeonTexObjPtr t, GLenum minf, GLenum magf )
 206 {
 207    GLuint anisotropy = (t->pp_txfilter & R200_MAX_ANISO_MASK);
 208
 209    /* Force revalidation to account for switches from/to mipmapping. */
 210    t->validated = GL_FALSE;
 211
 212    t->pp_txfilter &= ~(R200_MIN_FILTER_MASK | R200_MAG_FILTER_MASK);
 213    t->pp_txformat_x &= ~R200_VOLUME_FILTER_MASK;
 214
 215    if ( anisotropy == R200_MAX_ANISO_1_TO_1 ) {
 216       switch ( minf ) {
 217       case GL_NEAREST:
 218          t->pp_txfilter |= R200_MIN_FILTER_NEAREST;
 219          break;
 220       case GL_LINEAR:
 221          t->pp_txfilter |= R200_MIN_FILTER_LINEAR;
 222          break;
 223       case GL_NEAREST_MIPMAP_NEAREST:
 224          t->pp_txfilter |= R200_MIN_FILTER_NEAREST_MIP_NEAREST;
 225          break;
 226       case GL_NEAREST_MIPMAP_LINEAR:
 227          t->pp_txfilter |= R200_MIN_FILTER_LINEAR_MIP_NEAREST;
 228          break;
 229       case GL_LINEAR_MIPMAP_NEAREST:
 230          t->pp_txfilter |= R200_MIN_FILTER_NEAREST_MIP_LINEAR;
 231          break;
 232       case GL_LINEAR_MIPMAP_LINEAR:
 233          t->pp_txfilter |= R200_MIN_FILTER_LINEAR_MIP_LINEAR;
 234          break;
 235       }
 236    } else {
 237       switch ( minf ) {
 238       case GL_NEAREST:
 239          t->pp_txfilter |= R200_MIN_FILTER_ANISO_NEAREST;
 240          break;
 241       case GL_LINEAR:
 242          t->pp_txfilter |= R200_MIN_FILTER_ANISO_LINEAR;
 243          break;
 244       case GL_NEAREST_MIPMAP_NEAREST:
 245       case GL_LINEAR_MIPMAP_NEAREST:
 246          t->pp_txfilter |= R200_MIN_FILTER_ANISO_NEAREST_MIP_NEAREST;
 247          break;
 248       case GL_NEAREST_MIPMAP_LINEAR:
 249       case GL_LINEAR_MIPMAP_LINEAR:
 250          t->pp_txfilter |= R200_MIN_FILTER_ANISO_NEAREST_MIP_LINEAR;
 251          break;
 252       }
 253    }
 254
 255    /* Note we don't have 3D mipmaps so only use the mag filter setting
 256     * to set the 3D texture filter mode.
 257     */
 258    switch ( magf ) {
 259    case GL_NEAREST:
 260       t->pp_txfilter |= R200_MAG_FILTER_NEAREST;
 261       t->pp_txformat_x |= R200_VOLUME_FILTER_NEAREST;
 262       break;
 263    case GL_LINEAR:
 264       t->pp_txfilter |= R200_MAG_FILTER_LINEAR;
 265       t->pp_txformat_x |= R200_VOLUME_FILTER_LINEAR;
 266       break;
 267    }
 268 }
 269
 270 static void r200SetTexBorderColor( radeonTexObjPtr t, const GLfloat color[4] )
 271 {
 272    GLubyte c[4];
 273    CLAMPED_FLOAT_TO_UBYTE(c[0], color[0]);
 274    CLAMPED_FLOAT_TO_UBYTE(c[1], color[1]);
 275    CLAMPED_FLOAT_TO_UBYTE(c[2], color[2]);
 276    CLAMPED_FLOAT_TO_UBYTE(c[3], color[3]);
 277    t->pp_border_color = radeonPackColor( 4, c[0], c[1], c[2], c[3] );
 278 }
 279
 280 static void r200TexEnv( GLcontext *ctx, GLenum target,
 281                           GLenum pname, const GLfloat *param )
 282 {
 283    r200ContextPtr rmesa = R200_CONTEXT(ctx);
 284    GLuint unit = ctx->Texture.CurrentUnit;
 285    struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit];
 286
 287    if ( R200_DEBUG & RADEON_STATE ) {
 288       fprintf( stderr, "%s( %s )\n",
 289                __FUNCTION__, _mesa_lookup_enum_by_nr( pname ) );
 290    }
 291
 292    /* This is incorrect: Need to maintain this data for each of
 293     * GL_TEXTURE_{123}D, GL_TEXTURE_RECTANGLE_NV, etc, and switch
 294     * between them according to _ReallyEnabled.
 295     */
 296    switch ( pname ) {
 297    case GL_TEXTURE_ENV_COLOR: {
 298       GLubyte c[4];
 299       GLuint envColor;
 300       UNCLAMPED_FLOAT_TO_RGBA_CHAN( c, texUnit->EnvColor );
 301       envColor = radeonPackColor( 4, c[0], c[1], c[2], c[3] );
 302       if ( rmesa->hw.tf.cmd[TF_TFACTOR_0 + unit] != envColor ) {
 303          R200_STATECHANGE( rmesa, tf );
 304          rmesa->hw.tf.cmd[TF_TFACTOR_0 + unit] = envColor;
 305       }
 306       break;
 307    }
 308
 309    case GL_TEXTURE_LOD_BIAS_EXT: {
 310       GLfloat bias, min;
 311       GLuint b;
 312       const int fixed_one = 0x8000000;
 313
 314       /* The R200's LOD bias is a signed 2's complement value with a
 315        * range of -16.0 <= bias < 16.0.
 316        *
 317        * NOTE: Add a small bias to the bias for conform mipsel.c test.
 318        */
 319       bias = *param + .01;
 320       min = driQueryOptionb (&rmesa->radeon.optionCache, "no_neg_lod_bias") ?
 321           0.0 : -16.0;
 322       bias = CLAMP( bias, min, 16.0 );
 323       b = (int)(bias * fixed_one) & R200_LOD_BIAS_MASK;
 324
 325       if ( (rmesa->hw.tex[unit].cmd[TEX_PP_TXFORMAT_X] & R200_LOD_BIAS_MASK) != b ) {
 326          R200_STATECHANGE( rmesa, tex[unit] );
 327          rmesa->hw.tex[unit].cmd[TEX_PP_TXFORMAT_X] &= ~R200_LOD_BIAS_MASK;
 328          rmesa->hw.tex[unit].cmd[TEX_PP_TXFORMAT_X] |= b;
 329       }
 330       break;
 331    }
 332    case GL_COORD_REPLACE_ARB:
 333       if (ctx->Point.PointSprite) {
 334          R200_STATECHANGE( rmesa, spr );
 335          if ((GLenum)param[0]) {
 336             rmesa->hw.spr.cmd[SPR_POINT_SPRITE_CNTL] |= R200_PS_GEN_TEX_0 << unit;
 337          } else {
 338             rmesa->hw.spr.cmd[SPR_POINT_SPRITE_CNTL] &= ~(R200_PS_GEN_TEX_0 << unit);
 339          }
 340       }
 341       break;
 342    default:
 343       return;
 344    }
 345 }
 346
 347
 348 /**
 349  * Changes variables and flags for a state update, which will happen at the
 350  * next UpdateTextureState
 351  */
 352
 353 static void r200TexParameter( GLcontext *ctx, GLenum target,
 354                                 struct gl_texture_object *texObj,
 355                                 GLenum pname, const GLfloat *params )
 356 {
 357    radeonTexObj* t = radeon_tex_obj(texObj);
 358
 359    if ( R200_DEBUG & (RADEON_STATE|RADEON_TEXTURE) ) {
 360       fprintf( stderr, "%s( %s )\n", __FUNCTION__,
 361                _mesa_lookup_enum_by_nr( pname ) );
 362    }
 363
 364    switch ( pname ) {
 365    case GL_TEXTURE_MIN_FILTER:
 366    case GL_TEXTURE_MAG_FILTER:
 367    case GL_TEXTURE_MAX_ANISOTROPY_EXT:
 368       r200SetTexMaxAnisotropy( t, texObj->MaxAnisotropy );
 369       r200SetTexFilter( t, texObj->MinFilter, texObj->MagFilter );
 370       break;
 371
 372    case GL_TEXTURE_WRAP_S:
 373    case GL_TEXTURE_WRAP_T:
 374    case GL_TEXTURE_WRAP_R:
 375       r200SetTexWrap( t, texObj->WrapS, texObj->WrapT, texObj->WrapR );
 376       break;
 377
 378    case GL_TEXTURE_BORDER_COLOR:
 379       r200SetTexBorderColor( t, texObj->BorderColor.f );
 380       break;
 381
 382    case GL_TEXTURE_BASE_LEVEL:
 383    case GL_TEXTURE_MAX_LEVEL:
 384    case GL_TEXTURE_MIN_LOD:
 385    case GL_TEXTURE_MAX_LOD:
 386       t->validated = GL_FALSE;
 387       break;
 388
 389    default:
 390       return;
 391    }
 392 }
 393
 394
 395 static void r200DeleteTexture(GLcontext * ctx, struct gl_texture_object *texObj)
 396 {
 397    r200ContextPtr rmesa = R200_CONTEXT(ctx);
 398    radeonTexObj* t = radeon_tex_obj(texObj);
 399
 400    if (RADEON_DEBUG & (RADEON_STATE | RADEON_TEXTURE)) {
 401       fprintf(stderr, "%s( %p (target = %s) )\n", __FUNCTION__,
 402               (void *)texObj,
 403               _mesa_lookup_enum_by_nr(texObj->Target));
 404    }
 405
 406    if (rmesa) {
 407       int i;
 408       radeon_firevertices(&rmesa->radeon);
 409       for ( i = 0 ; i < rmesa->radeon.glCtx->Const.MaxTextureUnits ; i++ ) {
 410          if ( t == rmesa->state.texture.unit[i].texobj ) {
 411             rmesa->state.texture.unit[i].texobj = NULL;
 412             rmesa->hw.tex[i].dirty = GL_FALSE;
 413             rmesa->hw.cube[i].dirty = GL_FALSE;
 414          }
 415       }
 416    }
 417
 418    radeon_miptree_unreference(&t->mt);
 419
 420    _mesa_delete_texture_object(ctx, texObj);
 421 }
 422
 423 /* Need:
 424  *  - Same GEN_MODE for all active bits
 425  *  - Same EyePlane/ObjPlane for all active bits when using Eye/Obj
 426  *  - STRQ presumably all supported (matrix means incoming R values
 427  *    can end up in STQ, this has implications for vertex support,
 428  *    presumably ok if maos is used, though?)
 429  *
 430  * Basically impossible to do this on the fly - just collect some
 431  * basic info & do the checks from ValidateState().
 432  */
 433 static void r200TexGen( GLcontext *ctx,
 434                           GLenum coord,
 435                           GLenum pname,
 436                           const GLfloat *params )
 437 {
 438    r200ContextPtr rmesa = R200_CONTEXT(ctx);
 439    GLuint unit = ctx->Texture.CurrentUnit;
 440    rmesa->recheck_texgen[unit] = GL_TRUE;
 441 }
 442
 443
 444 /**
 445  * Allocate a new texture object.
 446  * Called via ctx->Driver.NewTextureObject.
 447  * Note: this function will be called during context creation to
 448  * allocate the default texture objects.
 449  * Fixup MaxAnisotropy according to user preference.
 450  */
 451 static struct gl_texture_object *r200NewTextureObject(GLcontext * ctx,
 452                                                       GLuint name,
 453                                                       GLenum target)
 454 {
 455    r200ContextPtr rmesa = R200_CONTEXT(ctx);
 456    radeonTexObj* t = CALLOC_STRUCT(radeon_tex_obj);
 457
 458
 459    if (RADEON_DEBUG & (RADEON_STATE | RADEON_TEXTURE)) {
 460      fprintf(stderr, "%s( %p (target = %s) )\n", __FUNCTION__,
 461              t, _mesa_lookup_enum_by_nr(target));
 462    }
 463
 464    _mesa_initialize_texture_object(&t->base, name, target);
 465    t->base.MaxAnisotropy = rmesa->radeon.initialMaxAnisotropy;
 466
 467    /* Initialize hardware state */
 468    r200SetTexWrap( t, t->base.WrapS, t->base.WrapT, t->base.WrapR );
 469    r200SetTexMaxAnisotropy( t, t->base.MaxAnisotropy );
 470    r200SetTexFilter(t, t->base.MinFilter, t->base.MagFilter);
 471    r200SetTexBorderColor(t, t->base.BorderColor.f);
 472
 473    return &t->base;
 474 }
 475
 476
 477
 478 void r200InitTextureFuncs( radeonContextPtr radeon, struct dd_function_table *functions )
 479 {
 480    /* Note: we only plug in the functions we implement in the driver
 481     * since _mesa_init_driver_functions() was already called.
 482     */
 483    functions->ChooseTextureFormat       = radeonChooseTextureFormat_mesa;
 484    functions->TexImage1D                = radeonTexImage1D;
 485    functions->TexImage2D                = radeonTexImage2D;
 486 #if ENABLE_HW_3D_TEXTURE
 487    functions->TexImage3D                = radeonTexImage3D;
 488 #else
 489    functions->TexImage3D                = _mesa_store_teximage3d;
 490 #endif
 491    functions->TexSubImage1D             = radeonTexSubImage1D;
 492    functions->TexSubImage2D             = radeonTexSubImage2D;
 493 #if ENABLE_HW_3D_TEXTURE
 494    functions->TexSubImage3D             = radeonTexSubImage3D;
 495 #else
 496    functions->TexSubImage3D             = _mesa_store_texsubimage3d;
 497 #endif
 498    functions->GetTexImage               = radeonGetTexImage;
 499    functions->GetCompressedTexImage     = radeonGetCompressedTexImage;
 500    functions->NewTextureObject          = r200NewTextureObject;
 501    //   functions->BindTexture          = r200BindTexture;
 502    functions->DeleteTexture             = r200DeleteTexture;
 503    functions->IsTextureResident         = driIsTextureResident;
 504
 505    functions->TexEnv                    = r200TexEnv;
 506    functions->TexParameter              = r200TexParameter;
 507    functions->TexGen                    = r200TexGen;
 508
 509    functions->CompressedTexImage2D      = radeonCompressedTexImage2D;
 510    functions->CompressedTexSubImage2D   = radeonCompressedTexSubImage2D;
 511
 512    if (radeon->radeonScreen->kernel_mm) {
 513       functions->CopyTexImage2D = radeonCopyTexImage2D;
 514       functions->CopyTexSubImage2D = radeonCopyTexSubImage2D;
 515    }
 516
 517    functions->GenerateMipmap = radeonGenerateMipmap;
 518
 519    functions->NewTextureImage = radeonNewTextureImage;
 520    functions->FreeTexImageData = radeonFreeTexImageData;
 521    functions->MapTexture = radeonMapTexture;
 522    functions->UnmapTexture = radeonUnmapTexture;
 523
 524    driInitTextureFormats();
 525
 526 }