dlls/wined3d/basetexture.c

   1 /*
   2  * IWineD3DBaseTexture Implementation
   3  *
   4  * Copyright 2002-2004 Jason Edmeades
   5  * Copyright 2002-2004 Raphael Junqueira
   6  * Copyright 2005 Oliver Stieber
   7  * Copyright 2007-2008 Stefan Dösinger for CodeWeavers
   8  * Copyright 2009 Henri Verbeet for CodeWeavers
   9  *
  10  * This library is free software; you can redistribute it and/or
  11  * modify it under the terms of the GNU Lesser General Public
  12  * License as published by the Free Software Foundation; either
  13  * version 2.1 of the License, or (at your option) any later version.
  14  *
  15  * This library is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  18  * Lesser General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU Lesser General Public
  21  * License along with this library; if not, write to the Free Software
  22  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  23  */
  24
  25 #include "config.h"
  26 #include "wined3d_private.h"
  27
  28 WINE_DEFAULT_DEBUG_CHANNEL(d3d_texture);
  29
  30 HRESULT basetexture_init(IWineD3DBaseTextureImpl *texture, UINT levels, WINED3DRESOURCETYPE resource_type,
  31         IWineD3DDeviceImpl *device, UINT size, DWORD usage, const struct GlPixelFormatDesc *format_desc,
  32         WINED3DPOOL pool, IUnknown *parent, const struct wined3d_parent_ops *parent_ops)
  33 {
  34     HRESULT hr;
  35
  36     hr = resource_init((IWineD3DResource *)texture, resource_type, device,
  37             size, usage, format_desc, pool, parent, parent_ops);
  38     if (FAILED(hr))
  39     {
  40         WARN("Failed to initialize resource, returning %#x\n", hr);
  41         return hr;
  42     }
  43
  44     texture->baseTexture.levels = levels;
  45     texture->baseTexture.filterType = (usage & WINED3DUSAGE_AUTOGENMIPMAP) ? WINED3DTEXF_LINEAR : WINED3DTEXF_NONE;
  46     texture->baseTexture.LOD = 0;
  47     texture->baseTexture.texture_rgb.dirty = TRUE;
  48     texture->baseTexture.texture_srgb.dirty = TRUE;
  49     texture->baseTexture.is_srgb = FALSE;
  50     texture->baseTexture.pow2Matrix_identity = TRUE;
  51
  52     if (texture->resource.format_desc->Flags & WINED3DFMT_FLAG_FILTERING)
  53     {
  54         texture->baseTexture.minMipLookup = minMipLookup;
  55         texture->baseTexture.magLookup = magLookup;
  56     }
  57     else
  58     {
  59         texture->baseTexture.minMipLookup = minMipLookup_noFilter;
  60         texture->baseTexture.magLookup = magLookup_noFilter;
  61     }
  62
  63     return WINED3D_OK;
  64 }
  65
  66 void basetexture_cleanup(IWineD3DBaseTexture *iface)
  67 {
  68     basetexture_unload(iface);
  69     resource_cleanup((IWineD3DResource *)iface);
  70 }
  71
  72 /* A GL context is provided by the caller */
  73 static void gltexture_delete(struct gl_texture *tex)
  74 {
  75     ENTER_GL();
  76     glDeleteTextures(1, &tex->name);
  77     LEAVE_GL();
  78     tex->name = 0;
  79 }
  80
  81 void basetexture_unload(IWineD3DBaseTexture *iface)
  82 {
  83     IWineD3DTextureImpl *This = (IWineD3DTextureImpl *)iface;
  84     IWineD3DDeviceImpl *device = This->resource.device;
  85     struct wined3d_context *context = NULL;
  86
  87     if (This->baseTexture.texture_rgb.name || This->baseTexture.texture_srgb.name)
  88     {
  89         context = context_acquire(device, NULL, CTXUSAGE_RESOURCELOAD);
  90     }
  91
  92     if(This->baseTexture.texture_rgb.name) {
  93         gltexture_delete(&This->baseTexture.texture_rgb);
  94     }
  95     if(This->baseTexture.texture_srgb.name) {
  96         gltexture_delete(&This->baseTexture.texture_srgb);
  97     }
  98
  99     if (context) context_release(context);
 100
 101     This->baseTexture.texture_rgb.dirty = TRUE;
 102     This->baseTexture.texture_srgb.dirty = TRUE;
 103 }
 104
 105 DWORD basetexture_set_lod(IWineD3DBaseTexture *iface, DWORD LODNew)
 106 {
 107     IWineD3DBaseTextureImpl *This = (IWineD3DBaseTextureImpl *)iface;
 108     DWORD old = This->baseTexture.LOD;
 109
 110     /* The d3d9:texture test shows that SetLOD is ignored on non-managed
 111      * textures. The call always returns 0, and GetLOD always returns 0
 112      */
 113     if (This->resource.pool != WINED3DPOOL_MANAGED) {
 114         TRACE("Ignoring SetLOD on %s texture, returning 0\n", debug_d3dpool(This->resource.pool));
 115         return 0;
 116     }
 117
 118     if(LODNew >= This->baseTexture.levels)
 119         LODNew = This->baseTexture.levels - 1;
 120
 121     if(This->baseTexture.LOD != LODNew) {
 122         This->baseTexture.LOD = LODNew;
 123
 124         This->baseTexture.texture_rgb.states[WINED3DTEXSTA_MAXMIPLEVEL] = ~0U;
 125         This->baseTexture.texture_srgb.states[WINED3DTEXSTA_MAXMIPLEVEL] = ~0U;
 126         if(This->baseTexture.bindCount) {
 127             IWineD3DDeviceImpl_MarkStateDirty(This->resource.device, STATE_SAMPLER(This->baseTexture.sampler));
 128         }
 129     }
 130
 131     TRACE("(%p) : set LOD to %d\n", This, This->baseTexture.LOD);
 132
 133     return old;
 134 }
 135
 136 DWORD basetexture_get_lod(IWineD3DBaseTexture *iface)
 137 {
 138     IWineD3DBaseTextureImpl *This = (IWineD3DBaseTextureImpl *)iface;
 139
 140     TRACE("(%p) : returning %d\n", This, This->baseTexture.LOD);
 141
 142     return This->baseTexture.LOD;
 143 }
 144
 145 DWORD basetexture_get_level_count(IWineD3DBaseTexture *iface)
 146 {
 147     IWineD3DBaseTextureImpl *This = (IWineD3DBaseTextureImpl *)iface;
 148     TRACE("(%p) : returning %d\n", This, This->baseTexture.levels);
 149     return This->baseTexture.levels;
 150 }
 151
 152 HRESULT basetexture_set_autogen_filter_type(IWineD3DBaseTexture *iface, WINED3DTEXTUREFILTERTYPE FilterType)
 153 {
 154   IWineD3DBaseTextureImpl *This = (IWineD3DBaseTextureImpl *)iface;
 155   IWineD3DDeviceImpl *device = This->resource.device;
 156   UINT textureDimensions = IWineD3DBaseTexture_GetTextureDimensions(iface);
 157
 158   if (!(This->resource.usage & WINED3DUSAGE_AUTOGENMIPMAP)) {
 159       TRACE("(%p) : returning invalid call\n", This);
 160       return WINED3DERR_INVALIDCALL;
 161   }
 162   if(This->baseTexture.filterType != FilterType) {
 163       /* What about multithreading? Do we want all the context overhead just to set this value?
 164        * Or should we delay the applying until the texture is used for drawing? For now, apply
 165        * immediately.
 166        */
 167       struct wined3d_context *context = context_acquire(device, NULL, CTXUSAGE_RESOURCELOAD);
 168
 169       ENTER_GL();
 170       glBindTexture(textureDimensions, This->baseTexture.texture_rgb.name);
 171       checkGLcall("glBindTexture");
 172       switch(FilterType) {
 173           case WINED3DTEXF_NONE:
 174           case WINED3DTEXF_POINT:
 175               glTexParameteri(textureDimensions, GL_GENERATE_MIPMAP_HINT_SGIS, GL_FASTEST);
 176               checkGLcall("glTexParameteri(textureDimensions, GL_GENERATE_MIPMAP_HINT_SGIS, GL_FASTEST)");
 177
 178               break;
 179           case WINED3DTEXF_LINEAR:
 180               glTexParameteri(textureDimensions, GL_GENERATE_MIPMAP_HINT_SGIS, GL_NICEST);
 181               checkGLcall("glTexParameteri(textureDimensions, GL_GENERATE_MIPMAP_HINT_SGIS, GL_NICEST)");
 182
 183               break;
 184           default:
 185               WARN("Unexpected filter type %d, setting to GL_NICEST\n", FilterType);
 186               glTexParameteri(textureDimensions, GL_GENERATE_MIPMAP_HINT_SGIS, GL_NICEST);
 187               checkGLcall("glTexParameteri(textureDimensions, GL_GENERATE_MIPMAP_HINT_SGIS, GL_NICEST)");
 188       }
 189       LEAVE_GL();
 190
 191       context_release(context);
 192   }
 193   This->baseTexture.filterType = FilterType;
 194   TRACE("(%p) :\n", This);
 195   return WINED3D_OK;
 196 }
 197
 198 WINED3DTEXTUREFILTERTYPE basetexture_get_autogen_filter_type(IWineD3DBaseTexture *iface)
 199 {
 200     IWineD3DBaseTextureImpl *This = (IWineD3DBaseTextureImpl *)iface;
 201
 202     FIXME("(%p) : stub\n", This);
 203
 204     return This->baseTexture.filterType;
 205 }
 206
 207 void basetexture_generate_mipmaps(IWineD3DBaseTexture *iface)
 208 {
 209     /* TODO: Implement filters using GL_SGI_generate_mipmaps. */
 210     FIXME("iface %p stub!\n", iface);
 211 }
 212
 213 BOOL basetexture_set_dirty(IWineD3DBaseTexture *iface, BOOL dirty)
 214 {
 215     BOOL old;
 216     IWineD3DBaseTextureImpl *This = (IWineD3DBaseTextureImpl *)iface;
 217     old = This->baseTexture.texture_rgb.dirty || This->baseTexture.texture_srgb.dirty;
 218     This->baseTexture.texture_rgb.dirty = dirty;
 219     This->baseTexture.texture_srgb.dirty = dirty;
 220     return old;
 221 }
 222
 223 BOOL basetexture_get_dirty(IWineD3DBaseTexture *iface)
 224 {
 225     IWineD3DBaseTextureImpl *This = (IWineD3DBaseTextureImpl *)iface;
 226     return This->baseTexture.texture_rgb.dirty || This->baseTexture.texture_srgb.dirty;
 227 }
 228
 229 /* Context activation is done by the caller. */
 230 HRESULT basetexture_bind(IWineD3DBaseTexture *iface, BOOL srgb, BOOL *set_surface_desc)
 231 {
 232     IWineD3DBaseTextureImpl *This = (IWineD3DBaseTextureImpl *)iface;
 233     HRESULT hr = WINED3D_OK;
 234     UINT textureDimensions;
 235     BOOL isNewTexture = FALSE;
 236     struct gl_texture *gl_tex;
 237     TRACE("(%p) : About to bind texture\n", This);
 238
 239     This->baseTexture.is_srgb = srgb; /* SRGB mode cache for PreLoad calls outside drawprim */
 240     if(srgb) {
 241         gl_tex = &This->baseTexture.texture_srgb;
 242     } else {
 243         gl_tex = &This->baseTexture.texture_rgb;
 244     }
 245
 246     textureDimensions = IWineD3DBaseTexture_GetTextureDimensions(iface);
 247     ENTER_GL();
 248     /* Generate a texture name if we don't already have one */
 249     if (gl_tex->name == 0) {
 250         *set_surface_desc = TRUE;
 251         glGenTextures(1, &gl_tex->name);
 252         checkGLcall("glGenTextures");
 253         TRACE("Generated texture %d\n", gl_tex->name);
 254         if (This->resource.pool == WINED3DPOOL_DEFAULT) {
 255             /* Tell opengl to try and keep this texture in video ram (well mostly) */
 256             GLclampf tmp;
 257             tmp = 0.9f;
 258             glPrioritizeTextures(1, &gl_tex->name, &tmp);
 259
 260         }
 261         /* Initialise the state of the texture object
 262         to the openGL defaults, not the directx defaults */
 263         gl_tex->states[WINED3DTEXSTA_ADDRESSU]      = WINED3DTADDRESS_WRAP;
 264         gl_tex->states[WINED3DTEXSTA_ADDRESSV]      = WINED3DTADDRESS_WRAP;
 265         gl_tex->states[WINED3DTEXSTA_ADDRESSW]      = WINED3DTADDRESS_WRAP;
 266         gl_tex->states[WINED3DTEXSTA_BORDERCOLOR]   = 0;
 267         gl_tex->states[WINED3DTEXSTA_MAGFILTER]     = WINED3DTEXF_LINEAR;
 268         gl_tex->states[WINED3DTEXSTA_MINFILTER]     = WINED3DTEXF_POINT; /* GL_NEAREST_MIPMAP_LINEAR */
 269         gl_tex->states[WINED3DTEXSTA_MIPFILTER]     = WINED3DTEXF_LINEAR; /* GL_NEAREST_MIPMAP_LINEAR */
 270         gl_tex->states[WINED3DTEXSTA_MAXMIPLEVEL]   = 0;
 271         gl_tex->states[WINED3DTEXSTA_MAXANISOTROPY] = 1;
 272         gl_tex->states[WINED3DTEXSTA_SRGBTEXTURE]   = 0;
 273         gl_tex->states[WINED3DTEXSTA_ELEMENTINDEX]  = 0;
 274         gl_tex->states[WINED3DTEXSTA_DMAPOFFSET]    = 0;
 275         gl_tex->states[WINED3DTEXSTA_TSSADDRESSW]   = WINED3DTADDRESS_WRAP;
 276         IWineD3DBaseTexture_SetDirty(iface, TRUE);
 277         isNewTexture = TRUE;
 278
 279         if(This->resource.usage & WINED3DUSAGE_AUTOGENMIPMAP) {
 280             /* This means double binding the texture at creation, but keeps the code simpler all
 281              * in all, and the run-time path free from additional checks
 282              */
 283             glBindTexture(textureDimensions, gl_tex->name);
 284             checkGLcall("glBindTexture");
 285             glTexParameteri(textureDimensions, GL_GENERATE_MIPMAP_SGIS, GL_TRUE);
 286             checkGLcall("glTexParameteri(textureDimensions, GL_GENERATE_MIPMAP_SGIS, GL_TRUE)");
 287         }
 288     } else {
 289         *set_surface_desc = FALSE;
 290     }
 291
 292     /* Bind the texture */
 293     if (gl_tex->name != 0) {
 294         glBindTexture(textureDimensions, gl_tex->name);
 295         checkGLcall("glBindTexture");
 296         if (isNewTexture) {
 297             /* For a new texture we have to set the textures levels after binding the texture.
 298              * In theory this is all we should ever have to do, but because ATI's drivers are broken, we
 299              * also need to set the texture dimensions before the texture is set
 300              * Beware that texture rectangles do not support mipmapping, but set the maxmiplevel if we're
 301              * relying on the partial GL_ARB_texture_non_power_of_two emulation with texture rectangles
 302              * (ie, do not care for cond_np2 here, just look for GL_TEXTURE_RECTANGLE_ARB)
 303              */
 304             if(textureDimensions != GL_TEXTURE_RECTANGLE_ARB) {
 305                 TRACE("Setting GL_TEXTURE_MAX_LEVEL to %d\n", This->baseTexture.levels - 1);
 306                 glTexParameteri(textureDimensions, GL_TEXTURE_MAX_LEVEL, This->baseTexture.levels - 1);
 307                 checkGLcall("glTexParameteri(textureDimensions, GL_TEXTURE_MAX_LEVEL, This->baseTexture.levels)");
 308             }
 309             if(textureDimensions==GL_TEXTURE_CUBE_MAP_ARB) {
 310                 /* Cubemaps are always set to clamp, regardless of the sampler state. */
 311                 glTexParameteri(textureDimensions, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
 312                 glTexParameteri(textureDimensions, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
 313                 glTexParameteri(textureDimensions, GL_TEXTURE_WRAP_R, GL_CLAMP_TO_EDGE);
 314             }
 315         }
 316     } else { /* this only happened if we've run out of openGL textures */
 317         WARN("This texture doesn't have an openGL texture assigned to it\n");
 318         hr =  WINED3DERR_INVALIDCALL;
 319     }
 320
 321     LEAVE_GL();
 322     return hr;
 323 }
 324
 325 /* GL locking is done by the caller */
 326 static void apply_wrap(GLenum target, WINED3DTEXTUREADDRESS d3d_wrap, GLenum param, BOOL cond_np2)
 327 {
 328     GLint gl_wrap;
 329
 330     if (d3d_wrap < WINED3DTADDRESS_WRAP || d3d_wrap > WINED3DTADDRESS_MIRRORONCE)
 331     {
 332         FIXME("Unrecognized or unsupported WINED3DTEXTUREADDRESS %#x.\n", d3d_wrap);
 333         return;
 334     }
 335
 336     if (target == GL_TEXTURE_CUBE_MAP_ARB
 337             || (cond_np2 && d3d_wrap == WINED3DTADDRESS_WRAP))
 338     {
 339         /* Cubemaps are always set to clamp, regardless of the sampler state. */
 340         gl_wrap = GL_CLAMP_TO_EDGE;
 341     }
 342     else
 343     {
 344         gl_wrap = wrap_lookup[d3d_wrap - WINED3DTADDRESS_WRAP];
 345     }
 346
 347     TRACE("Setting param %#x to %#x for target %#x.\n", param, gl_wrap, target);
 348     glTexParameteri(target, param, gl_wrap);
 349     checkGLcall("glTexParameteri(target, param, gl_wrap)");
 350 }
 351
 352 /* GL locking is done by the caller (state handler) */
 353 void basetexture_apply_state_changes(IWineD3DBaseTexture *iface,
 354         const DWORD textureStates[WINED3D_HIGHEST_TEXTURE_STATE + 1],
 355         const DWORD samplerStates[WINED3D_HIGHEST_SAMPLER_STATE + 1])
 356 {
 357     IWineD3DBaseTextureImpl *This = (IWineD3DBaseTextureImpl *)iface;
 358     DWORD state;
 359     GLint textureDimensions = IWineD3DBaseTexture_GetTextureDimensions(iface);
 360     BOOL cond_np2 = IWineD3DBaseTexture_IsCondNP2(iface);
 361     DWORD aniso;
 362     struct gl_texture *gl_tex;
 363
 364     TRACE("iface %p, textureStates %p, samplerStates %p\n", iface, textureStates, samplerStates);
 365
 366     if(This->baseTexture.is_srgb) {
 367         gl_tex = &This->baseTexture.texture_srgb;
 368     } else {
 369         gl_tex = &This->baseTexture.texture_rgb;
 370     }
 371
 372     /* This function relies on the correct texture being bound and loaded. */
 373
 374     if(samplerStates[WINED3DSAMP_ADDRESSU]      != gl_tex->states[WINED3DTEXSTA_ADDRESSU]) {
 375         state = samplerStates[WINED3DSAMP_ADDRESSU];
 376         apply_wrap(textureDimensions, state, GL_TEXTURE_WRAP_S, cond_np2);
 377         gl_tex->states[WINED3DTEXSTA_ADDRESSU] = state;
 378     }
 379
 380     if(samplerStates[WINED3DSAMP_ADDRESSV]      != gl_tex->states[WINED3DTEXSTA_ADDRESSV]) {
 381         state = samplerStates[WINED3DSAMP_ADDRESSV];
 382         apply_wrap(textureDimensions, state, GL_TEXTURE_WRAP_T, cond_np2);
 383         gl_tex->states[WINED3DTEXSTA_ADDRESSV] = state;
 384     }
 385
 386     if(samplerStates[WINED3DSAMP_ADDRESSW]      != gl_tex->states[WINED3DTEXSTA_ADDRESSW]) {
 387         state = samplerStates[WINED3DSAMP_ADDRESSW];
 388         apply_wrap(textureDimensions, state, GL_TEXTURE_WRAP_R, cond_np2);
 389         gl_tex->states[WINED3DTEXSTA_ADDRESSW] = state;
 390     }
 391
 392     if(samplerStates[WINED3DSAMP_BORDERCOLOR]   != gl_tex->states[WINED3DTEXSTA_BORDERCOLOR]) {
 393         float col[4];
 394
 395         state = samplerStates[WINED3DSAMP_BORDERCOLOR];
 396         D3DCOLORTOGLFLOAT4(state, col);
 397         TRACE("Setting border color for %u to %x\n", textureDimensions, state);
 398         glTexParameterfv(textureDimensions, GL_TEXTURE_BORDER_COLOR, &col[0]);
 399         checkGLcall("glTexParameteri(..., GL_TEXTURE_BORDER_COLOR, ...)");
 400         gl_tex->states[WINED3DTEXSTA_BORDERCOLOR] = state;
 401     }
 402
 403     if(samplerStates[WINED3DSAMP_MAGFILTER]     != gl_tex->states[WINED3DTEXSTA_MAGFILTER]) {
 404         GLint glValue;
 405         state = samplerStates[WINED3DSAMP_MAGFILTER];
 406         if (state > WINED3DTEXF_ANISOTROPIC) {
 407             FIXME("Unrecognized or unsupported MAGFILTER* value %d\n", state);
 408         }
 409
 410         glValue = wined3d_gl_mag_filter(This->baseTexture.magLookup,
 411                 min(max(state, WINED3DTEXF_POINT), WINED3DTEXF_LINEAR));
 412         TRACE("ValueMAG=%d setting MAGFILTER to %x\n", state, glValue);
 413         glTexParameteri(textureDimensions, GL_TEXTURE_MAG_FILTER, glValue);
 414
 415         gl_tex->states[WINED3DTEXSTA_MAGFILTER] = state;
 416     }
 417
 418     if((samplerStates[WINED3DSAMP_MINFILTER]     != gl_tex->states[WINED3DTEXSTA_MINFILTER] ||
 419         samplerStates[WINED3DSAMP_MIPFILTER]     != gl_tex->states[WINED3DTEXSTA_MIPFILTER] ||
 420         samplerStates[WINED3DSAMP_MAXMIPLEVEL]   != gl_tex->states[WINED3DTEXSTA_MAXMIPLEVEL])) {
 421         GLint glValue;
 422
 423         gl_tex->states[WINED3DTEXSTA_MIPFILTER] = samplerStates[WINED3DSAMP_MIPFILTER];
 424         gl_tex->states[WINED3DTEXSTA_MINFILTER] = samplerStates[WINED3DSAMP_MINFILTER];
 425         gl_tex->states[WINED3DTEXSTA_MAXMIPLEVEL] = samplerStates[WINED3DSAMP_MAXMIPLEVEL];
 426
 427         if (gl_tex->states[WINED3DTEXSTA_MINFILTER] > WINED3DTEXF_ANISOTROPIC
 428             || gl_tex->states[WINED3DTEXSTA_MIPFILTER] > WINED3DTEXF_ANISOTROPIC)
 429         {
 430
 431             FIXME("Unrecognized or unsupported D3DSAMP_MINFILTER value %d D3DSAMP_MIPFILTER value %d\n",
 432                   gl_tex->states[WINED3DTEXSTA_MINFILTER],
 433                   gl_tex->states[WINED3DTEXSTA_MIPFILTER]);
 434         }
 435         glValue = wined3d_gl_min_mip_filter(This->baseTexture.minMipLookup,
 436                 min(max(samplerStates[WINED3DSAMP_MINFILTER], WINED3DTEXF_POINT), WINED3DTEXF_LINEAR),
 437                 min(max(samplerStates[WINED3DSAMP_MIPFILTER], WINED3DTEXF_NONE), WINED3DTEXF_LINEAR));
 438
 439         TRACE("ValueMIN=%d, ValueMIP=%d, setting MINFILTER to %x\n",
 440               samplerStates[WINED3DSAMP_MINFILTER],
 441               samplerStates[WINED3DSAMP_MIPFILTER], glValue);
 442         glTexParameteri(textureDimensions, GL_TEXTURE_MIN_FILTER, glValue);
 443         checkGLcall("glTexParameter GL_TEXTURE_MIN_FILTER, ...");
 444
 445         if(!cond_np2) {
 446             if(gl_tex->states[WINED3DTEXSTA_MIPFILTER] == WINED3DTEXF_NONE) {
 447                 glValue = This->baseTexture.LOD;
 448             } else if(gl_tex->states[WINED3DTEXSTA_MAXMIPLEVEL] >= This->baseTexture.levels) {
 449                 glValue = This->baseTexture.levels - 1;
 450             } else if(gl_tex->states[WINED3DTEXSTA_MAXMIPLEVEL] < This->baseTexture.LOD) {
 451                 /* baseTexture.LOD is already clamped in the setter */
 452                 glValue = This->baseTexture.LOD;
 453             } else {
 454                 glValue = gl_tex->states[WINED3DTEXSTA_MAXMIPLEVEL];
 455             }
 456             /* Note that D3DSAMP_MAXMIPLEVEL specifies the biggest mipmap(default 0), while
 457              * GL_TEXTURE_MAX_LEVEL specifies the smallest mimap used(default 1000).
 458              * So D3DSAMP_MAXMIPLEVEL is the same as GL_TEXTURE_BASE_LEVEL.
 459              */
 460             glTexParameteri(textureDimensions, GL_TEXTURE_BASE_LEVEL, glValue);
 461         }
 462     }
 463
 464     if ((gl_tex->states[WINED3DTEXSTA_MAGFILTER] != WINED3DTEXF_ANISOTROPIC
 465          && gl_tex->states[WINED3DTEXSTA_MINFILTER] != WINED3DTEXF_ANISOTROPIC
 466          && gl_tex->states[WINED3DTEXSTA_MIPFILTER] != WINED3DTEXF_ANISOTROPIC)
 467             || cond_np2)
 468     {
 469         aniso = 1;
 470     }
 471     else
 472     {
 473         aniso = samplerStates[WINED3DSAMP_MAXANISOTROPY];
 474     }
 475
 476     if (gl_tex->states[WINED3DTEXSTA_MAXANISOTROPY] != aniso)
 477     {
 478         IWineD3DDeviceImpl *device = This->resource.device;
 479         const struct wined3d_gl_info *gl_info = &device->adapter->gl_info;
 480
 481         if (gl_info->supported[EXT_TEXTURE_FILTER_ANISOTROPIC])
 482         {
 483             glTexParameteri(textureDimensions, GL_TEXTURE_MAX_ANISOTROPY_EXT, aniso);
 484             checkGLcall("glTexParameteri(GL_TEXTURE_MAX_ANISOTROPY_EXT, aniso)");
 485         }
 486         else
 487         {
 488             WARN("Anisotropic filtering not supported.\n");
 489         }
 490         gl_tex->states[WINED3DTEXSTA_MAXANISOTROPY] = aniso;
 491     }
 492 }