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