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