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   1 /* Direct3D Common functions
   2  * Copyright (c) 1998 Lionel ULMER
   3  *
   4  * This file contains all MESA common code
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20
  21 #include "config.h"
  22
  23 #include "windef.h"
  24 #include "objbase.h"
  25 #include "ddraw.h"
  26 #include "d3d.h"
  27 #include "wine/debug.h"
  28
  29 #include "mesa_private.h"
  30
  31 WINE_DEFAULT_DEBUG_CHANNEL(ddraw);
  32
  33 GLenum convert_D3D_compare_to_GL(D3DCMPFUNC dwRenderState)
  34 {
  35     switch (dwRenderState) {
  36         case D3DCMP_NEVER: return GL_NEVER;
  37         case D3DCMP_LESS: return GL_LESS;
  38         case D3DCMP_EQUAL: return GL_EQUAL;
  39         case D3DCMP_LESSEQUAL: return GL_LEQUAL;
  40         case D3DCMP_GREATER: return GL_GREATER;
  41         case D3DCMP_NOTEQUAL: return GL_NOTEQUAL;
  42         case D3DCMP_GREATEREQUAL: return GL_GEQUAL;
  43         case D3DCMP_ALWAYS: return GL_ALWAYS;
  44         default: ERR("Unexpected compare type %d !\n", dwRenderState);
  45     }
  46     return GL_ALWAYS;
  47 }
  48
  49 GLenum convert_D3D_stencilop_to_GL(D3DSTENCILOP dwRenderState)
  50 {
  51     switch (dwRenderState) {
  52         case D3DSTENCILOP_KEEP: return GL_KEEP;
  53         case D3DSTENCILOP_ZERO: return GL_ZERO;
  54         case D3DSTENCILOP_REPLACE: return GL_REPLACE;
  55         case D3DSTENCILOP_INCRSAT: return GL_INCR;
  56         case D3DSTENCILOP_DECRSAT: return GL_DECR;
  57         case D3DSTENCILOP_INVERT: return GL_INVERT;
  58         case D3DSTENCILOP_INCR: WARN("D3DSTENCILOP_INCR not properly handled !\n"); return GL_INCR;
  59         case D3DSTENCILOP_DECR: WARN("D3DSTENCILOP_DECR not properly handled !\n"); return GL_DECR;
  60         default: ERR("Unexpected compare type %d !\n", dwRenderState);
  61     }
  62     return GL_KEEP;
  63 }
  64
  65 GLenum convert_D3D_blendop_to_GL(D3DBLEND dwRenderState)
  66 {
  67     switch ((D3DBLEND) dwRenderState) {
  68         case D3DBLEND_ZERO: return GL_ZERO;
  69         case D3DBLEND_ONE: return GL_ONE;
  70         case D3DBLEND_SRCALPHA: return GL_SRC_ALPHA;
  71         case D3DBLEND_INVSRCALPHA: return GL_ONE_MINUS_SRC_ALPHA;
  72         case D3DBLEND_DESTALPHA: return GL_DST_ALPHA;
  73         case D3DBLEND_INVDESTALPHA: return GL_ONE_MINUS_DST_ALPHA;
  74         case D3DBLEND_DESTCOLOR: return GL_DST_COLOR;
  75         case D3DBLEND_INVDESTCOLOR: return GL_ONE_MINUS_DST_COLOR;
  76         case D3DBLEND_SRCALPHASAT: return GL_SRC_ALPHA_SATURATE;
  77         case D3DBLEND_SRCCOLOR: return GL_SRC_COLOR;
  78         case D3DBLEND_INVSRCCOLOR: return GL_ONE_MINUS_SRC_COLOR;
  79         default: ERR("Unhandled blend mode %d !\n", dwRenderState); return GL_ZERO;
  80     }
  81 }
  82
  83 void set_render_state(IDirect3DDeviceImpl* This,
  84                       D3DRENDERSTATETYPE dwRenderStateType, STATEBLOCK *lpStateBlock)
  85 {
  86     DWORD dwRenderState = lpStateBlock->render_state[dwRenderStateType - 1];
  87     IDirect3DDeviceGLImpl *glThis = (IDirect3DDeviceGLImpl *) This;
  88
  89     if (TRACE_ON(ddraw))
  90         TRACE("%s = %08lx\n", _get_renderstate(dwRenderStateType), dwRenderState);
  91
  92     /* First, all the stipple patterns */
  93     if ((dwRenderStateType >= D3DRENDERSTATE_STIPPLEPATTERN00) &&
  94         (dwRenderStateType <= D3DRENDERSTATE_STIPPLEPATTERN31)) {
  95         ERR("Unhandled dwRenderStateType stipple %d!\n",dwRenderStateType);
  96     } else {
  97         ENTER_GL();
  98
  99         /* All others state variables */
 100         switch (dwRenderStateType) {
 101             case D3DRENDERSTATE_TEXTUREHANDLE: {    /*  1 */
 102                 IDirectDrawSurfaceImpl *tex = (IDirectDrawSurfaceImpl*) dwRenderState;
 103
 104                 LEAVE_GL();
 105                 IDirect3DDevice7_SetTexture(ICOM_INTERFACE(This, IDirect3DDevice7),
 106                                             0,
 107                                             ICOM_INTERFACE(tex, IDirectDrawSurface7));
 108                 ENTER_GL();
 109             } break;
 110
 111             case D3DRENDERSTATE_TEXTUREADDRESSU:  /* 44 */
 112             case D3DRENDERSTATE_TEXTUREADDRESSV:  /* 45 */
 113             case D3DRENDERSTATE_TEXTUREADDRESS: { /*  3 */
 114                 D3DTEXTURESTAGESTATETYPE d3dTexStageStateType;
 115
 116                 if (dwRenderStateType == D3DRENDERSTATE_TEXTUREADDRESS) d3dTexStageStateType = D3DTSS_ADDRESS;
 117                 else if (dwRenderStateType == D3DRENDERSTATE_TEXTUREADDRESSU) d3dTexStageStateType = D3DTSS_ADDRESSU;
 118                 else d3dTexStageStateType = D3DTSS_ADDRESSV;
 119
 120                 LEAVE_GL();
 121                 IDirect3DDevice7_SetTextureStageState(ICOM_INTERFACE(This, IDirect3DDevice7),
 122                                                       0, d3dTexStageStateType,
 123                                                       dwRenderState);
 124                 ENTER_GL();
 125             } break;
 126
 127             case D3DRENDERSTATE_TEXTUREPERSPECTIVE: /* 4 */
 128                 if (dwRenderState)
 129                     glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST);
 130                 else
 131                     glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_FASTEST);
 132                 break;
 133
 134             case D3DRENDERSTATE_WRAPU: /* 5 */
 135             case D3DRENDERSTATE_WRAPV: /* 6 */
 136             case D3DRENDERSTATE_WRAP0: /* 128 */
 137             case D3DRENDERSTATE_WRAP1: /* 129 */
 138             case D3DRENDERSTATE_WRAP2: /* 130 */
 139             case D3DRENDERSTATE_WRAP3: /* 131 */
 140             case D3DRENDERSTATE_WRAP4: /* 132 */
 141             case D3DRENDERSTATE_WRAP5: /* 133 */
 142             case D3DRENDERSTATE_WRAP6: /* 134 */
 143             case D3DRENDERSTATE_WRAP7: /* 135 */
 144                 if (dwRenderState)
 145                     ERR("Texture WRAP modes unsupported by OpenGL.. Expect graphical glitches !\n");
 146                 break;
 147
 148             case D3DRENDERSTATE_ZENABLE:          /*  7 */
 149                 /* To investigate : in OpenGL, if we disable the depth test, the Z buffer will NOT be
 150                    updated either.. No idea about what happens in D3D.
 151
 152                    Maybe replacing the Z function by ALWAYS would be a better idea. */
 153                 if (dwRenderState == D3DZB_TRUE)
 154                     glEnable(GL_DEPTH_TEST);
 155                 else if (dwRenderState == D3DZB_FALSE)
 156                     glDisable(GL_DEPTH_TEST);
 157                 else {
 158                     glEnable(GL_DEPTH_TEST);
 159                     WARN(" w-buffering not supported.\n");
 160                 }
 161                 break;
 162
 163             case D3DRENDERSTATE_FILLMODE:           /*  8 */
 164                 switch ((D3DFILLMODE) dwRenderState) {
 165                     case D3DFILL_POINT:
 166                         glPolygonMode(GL_FRONT_AND_BACK,GL_POINT);
 167                         break;
 168                     case D3DFILL_WIREFRAME:
 169                         glPolygonMode(GL_FRONT_AND_BACK,GL_LINE);
 170                         break;
 171                     case D3DFILL_SOLID:
 172                         glPolygonMode(GL_FRONT_AND_BACK,GL_FILL);
 173                         break;
 174                     default:
 175                         ERR("Unhandled fill mode %ld !\n",dwRenderState);
 176                  }
 177                  break;
 178
 179             case D3DRENDERSTATE_SHADEMODE:          /*  9 */
 180                 switch ((D3DSHADEMODE) dwRenderState) {
 181                     case D3DSHADE_FLAT:
 182                         glShadeModel(GL_FLAT);
 183                         break;
 184                     case D3DSHADE_GOURAUD:
 185                         glShadeModel(GL_SMOOTH);
 186                         break;
 187                     default:
 188                         ERR("Unhandled shade mode %ld !\n",dwRenderState);
 189                 }
 190                 break;
 191
 192             case D3DRENDERSTATE_ZWRITEENABLE:     /* 14 */
 193                 if (dwRenderState)
 194                     glDepthMask(GL_TRUE);
 195                 else
 196                     glDepthMask(GL_FALSE);
 197                 break;
 198
 199             case D3DRENDERSTATE_ALPHATESTENABLE:  /* 15 */
 200                 if (dwRenderState)
 201                     glEnable(GL_ALPHA_TEST);
 202                 else
 203                     glDisable(GL_ALPHA_TEST);
 204                 break;
 205
 206             case D3DRENDERSTATE_TEXTUREMAG: {     /* 17 */
 207                 DWORD tex_mag = 0xFFFFFFFF;
 208
 209                 switch ((D3DTEXTUREFILTER) dwRenderState) {
 210                     case D3DFILTER_NEAREST:
 211                         tex_mag = D3DTFG_POINT;
 212                         break;
 213                     case D3DFILTER_LINEAR:
 214                         tex_mag = D3DTFG_LINEAR;
 215                         break;
 216                     default:
 217                         ERR("Unhandled texture mag %ld !\n",dwRenderState);
 218                 }
 219
 220                 if (tex_mag != 0xFFFFFFFF) {
 221                     LEAVE_GL();
 222                     IDirect3DDevice7_SetTextureStageState(ICOM_INTERFACE(This, IDirect3DDevice7), 0, D3DTSS_MAGFILTER, tex_mag);
 223                     ENTER_GL();
 224                 }
 225             } break;
 226
 227             case D3DRENDERSTATE_TEXTUREMIN: {       /* 18 */
 228                 DWORD tex_min = 0xFFFFFFFF;
 229
 230                 switch ((D3DTEXTUREFILTER) dwRenderState) {
 231                     case D3DFILTER_NEAREST:
 232                         tex_min = D3DTFN_POINT;
 233                         break;
 234                     case D3DFILTER_LINEAR:
 235                         tex_min = D3DTFN_LINEAR;
 236                         break;
 237                     default:
 238                         ERR("Unhandled texture min %ld !\n",dwRenderState);
 239                 }
 240
 241                 if (tex_min != 0xFFFFFFFF) {
 242                     LEAVE_GL();
 243                     IDirect3DDevice7_SetTextureStageState(ICOM_INTERFACE(This, IDirect3DDevice7), 0, D3DTSS_MINFILTER, tex_min);
 244                     ENTER_GL();
 245                 }
 246             } break;
 247
 248             case D3DRENDERSTATE_SRCBLEND:           /* 19 */
 249             case D3DRENDERSTATE_DESTBLEND:          /* 20 */
 250                 glBlendFunc(convert_D3D_blendop_to_GL(lpStateBlock->render_state[D3DRENDERSTATE_SRCBLEND - 1]),
 251                             convert_D3D_blendop_to_GL(lpStateBlock->render_state[D3DRENDERSTATE_DESTBLEND - 1]));
 252                 break;
 253
 254             case D3DRENDERSTATE_TEXTUREMAPBLEND:    /* 21 */
 255                 switch ((D3DTEXTUREBLEND) dwRenderState) {
 256                     case D3DTBLEND_MODULATE:
 257                     case D3DTBLEND_MODULATEALPHA:
 258                         glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
 259                         break;
 260                     default:
 261                         ERR("Unhandled texture environment %ld !\n",dwRenderState);
 262                 }
 263                 break;
 264
 265             case D3DRENDERSTATE_CULLMODE:           /* 22 */
 266                 switch ((D3DCULL) dwRenderState) {
 267                     case D3DCULL_NONE:
 268                          glDisable(GL_CULL_FACE);
 269                          break;
 270                     case D3DCULL_CW:
 271                          glEnable(GL_CULL_FACE);
 272                          glFrontFace(GL_CCW);
 273                          glCullFace(GL_BACK);
 274                          break;
 275                     case D3DCULL_CCW:
 276                          glEnable(GL_CULL_FACE);
 277                          glFrontFace(GL_CW);
 278                          glCullFace(GL_BACK);
 279                          break;
 280                     default:
 281                          ERR("Unhandled cull mode %ld !\n",dwRenderState);
 282                 }
 283                 break;
 284
 285             case D3DRENDERSTATE_ZFUNC:            /* 23 */
 286                 glDepthFunc(convert_D3D_compare_to_GL(dwRenderState));
 287                 break;
 288
 289             case D3DRENDERSTATE_ALPHAREF:   /* 24 */
 290             case D3DRENDERSTATE_ALPHAFUNC:  /* 25 */
 291                 glAlphaFunc(convert_D3D_compare_to_GL(lpStateBlock->render_state[D3DRENDERSTATE_ALPHAFUNC - 1]),
 292                             (lpStateBlock->render_state[D3DRENDERSTATE_ALPHAREF - 1] & 0x000000FF) / 255.0);
 293                 break;
 294
 295             case D3DRENDERSTATE_DITHERENABLE:     /* 26 */
 296                 if (dwRenderState)
 297                     glEnable(GL_DITHER);
 298                 else
 299                     glDisable(GL_DITHER);
 300                 break;
 301
 302             case D3DRENDERSTATE_ALPHABLENDENABLE:   /* 27 */
 303                 if (dwRenderState) {
 304                     glEnable(GL_BLEND);
 305                 } else {
 306                     glDisable(GL_BLEND);
 307                 }
 308                 break;
 309
 310             case D3DRENDERSTATE_FOGENABLE: /* 28 */
 311                 /* Nothing to do here. Only the storage matters :-) */
 312                 break;
 313
 314             case D3DRENDERSTATE_SPECULARENABLE: /* 29 */
 315                 if (dwRenderState)
 316                     ERR(" Specular Lighting not supported yet.\n");
 317                 break;
 318
 319             case D3DRENDERSTATE_SUBPIXEL:  /* 31 */
 320             case D3DRENDERSTATE_SUBPIXELX: /* 32 */
 321                 /* We do not support this anyway, so why protest :-) */
 322                 break;
 323
 324             case D3DRENDERSTATE_STIPPLEDALPHA: /* 33 */
 325                 if (dwRenderState)
 326                     ERR(" Stippled Alpha not supported yet.\n");
 327                 break;
 328
 329             case D3DRENDERSTATE_FOGCOLOR: { /* 34 */
 330                 GLfloat color[4];
 331                 color[0] = ((dwRenderState >> 16) & 0xFF)/255.0f;
 332                 color[1] = ((dwRenderState >>  8) & 0xFF)/255.0f;
 333                 color[2] = ((dwRenderState >>  0) & 0xFF)/255.0f;
 334                 color[3] = ((dwRenderState >> 24) & 0xFF)/255.0f;
 335                 glFogfv(GL_FOG_COLOR,color);
 336                 /* Note: glFogiv does not seem to work */
 337             } break;
 338
 339             case D3DRENDERSTATE_FOGTABLEMODE:  /* 35 */
 340             case D3DRENDERSTATE_FOGVERTEXMODE: /* 140 */
 341             case D3DRENDERSTATE_FOGSTART:      /* 36 */
 342             case D3DRENDERSTATE_FOGEND:        /* 37 */
 343                 /* Nothing to do here. Only the storage matters :-) */
 344                 break;
 345
 346             case D3DRENDERSTATE_FOGDENSITY:    /* 38 */
 347                 glFogi(GL_FOG_DENSITY,*(float*)&dwRenderState);
 348                 break;
 349
 350             case D3DRENDERSTATE_COLORKEYENABLE:     /* 41 */
 351                 /* This needs to be fixed. */
 352                 if (dwRenderState)
 353                     glEnable(GL_BLEND);
 354                 else
 355                     glDisable(GL_BLEND);
 356                 break;
 357
 358             case D3DRENDERSTATE_ZBIAS: /* 47 */
 359                 /* This is a tad bit hacky.. But well, no idea how to do it better in OpenGL :-/ */
 360                 if (dwRenderState == 0) {
 361                     glDisable(GL_POLYGON_OFFSET_FILL);
 362                     glDisable(GL_POLYGON_OFFSET_LINE);
 363                     glDisable(GL_POLYGON_OFFSET_POINT);
 364                 } else {
 365                     glEnable(GL_POLYGON_OFFSET_FILL);
 366                     glEnable(GL_POLYGON_OFFSET_LINE);
 367                     glEnable(GL_POLYGON_OFFSET_POINT);
 368                     glPolygonOffset(1.0, dwRenderState * 1.0);
 369                 }
 370                 break;
 371
 372             case D3DRENDERSTATE_FLUSHBATCH:         /* 50 */
 373                 break;
 374
 375             case D3DRENDERSTATE_STENCILENABLE:    /* 52 */
 376                 if (dwRenderState)
 377                     glEnable(GL_STENCIL_TEST);
 378                 else
 379                     glDisable(GL_STENCIL_TEST);
 380                 break;
 381
 382             case D3DRENDERSTATE_STENCILFAIL:      /* 53 */
 383             case D3DRENDERSTATE_STENCILZFAIL:     /* 54 */
 384             case D3DRENDERSTATE_STENCILPASS:      /* 55 */
 385                 glStencilOp(convert_D3D_stencilop_to_GL(lpStateBlock->render_state[D3DRENDERSTATE_STENCILFAIL - 1]),
 386                             convert_D3D_stencilop_to_GL(lpStateBlock->render_state[D3DRENDERSTATE_STENCILZFAIL - 1]),
 387                             convert_D3D_stencilop_to_GL(lpStateBlock->render_state[D3DRENDERSTATE_STENCILPASS - 1]));
 388                 break;
 389
 390             case D3DRENDERSTATE_STENCILFUNC:      /* 56 */
 391             case D3DRENDERSTATE_STENCILREF:       /* 57 */
 392             case D3DRENDERSTATE_STENCILMASK:      /* 58 */
 393                 glStencilFunc(convert_D3D_compare_to_GL(lpStateBlock->render_state[D3DRENDERSTATE_STENCILFUNC - 1]),
 394                               lpStateBlock->render_state[D3DRENDERSTATE_STENCILREF - 1],
 395                               lpStateBlock->render_state[D3DRENDERSTATE_STENCILMASK - 1]);
 396                 break;
 397
 398             case D3DRENDERSTATE_STENCILWRITEMASK: /* 59 */
 399                 glStencilMask(dwRenderState);
 400                 break;
 401
 402             case D3DRENDERSTATE_TEXTUREFACTOR:      /* 60 */
 403                 /* Only the storage matters... */
 404                 break;
 405
 406             case D3DRENDERSTATE_CLIPPING:          /* 136 */
 407             case D3DRENDERSTATE_CLIPPLANEENABLE: { /* 152 */
 408                     GLint i;
 409                     DWORD mask, runner;
 410
 411                     if (dwRenderStateType == D3DRENDERSTATE_CLIPPING) {
 412                         mask = ((dwRenderState) ?
 413                                 (This->state_block.render_state[D3DRENDERSTATE_CLIPPLANEENABLE - 1]) : (0x00000000));
 414                     } else {
 415                         mask = dwRenderState;
 416                     }
 417                     for (i = 0, runner = 0x00000001; i < This->max_clipping_planes; i++, runner = (runner << 1)) {
 418                         if (mask & runner) {
 419                             GLint enabled;
 420                             glGetIntegerv(GL_CLIP_PLANE0 + i, &enabled);
 421                             if (enabled == GL_FALSE) {
 422                                 glEnable(GL_CLIP_PLANE0 + i);
 423                                 /* Need to force a transform change so that this clipping plane parameters are sent
 424                                  * properly to GL.
 425                                  */
 426                                 glThis->transform_state = GL_TRANSFORM_NONE;
 427                             }
 428                         } else {
 429                             glDisable(GL_CLIP_PLANE0 + i);
 430                         }
 431                     }
 432                 }
 433                 break;
 434
 435             case D3DRENDERSTATE_LIGHTING:    /* 137 */
 436                 if (dwRenderState)
 437                     glEnable(GL_LIGHTING);
 438                 else
 439                     glDisable(GL_LIGHTING);
 440                 break;
 441
 442             case D3DRENDERSTATE_AMBIENT: {            /* 139 */
 443                 float light[4];
 444
 445                 light[0] = ((dwRenderState >> 16) & 0xFF) / 255.0;
 446                 light[1] = ((dwRenderState >>  8) & 0xFF) / 255.0;
 447                 light[2] = ((dwRenderState >>  0) & 0xFF) / 255.0;
 448                 light[3] = ((dwRenderState >> 24) & 0xFF) / 255.0;
 449                 glLightModelfv(GL_LIGHT_MODEL_AMBIENT, (float *) light);
 450             } break;
 451
 452             case D3DRENDERSTATE_COLORVERTEX:          /* 141 */
 453                   /* Nothing to do here.. Only storage matters */
 454                   break;
 455
 456             case D3DRENDERSTATE_LOCALVIEWER:          /* 142 */
 457                 if (dwRenderState)
 458                     glLightModeli(GL_LIGHT_MODEL_LOCAL_VIEWER, GL_TRUE);
 459                 else
 460                     glLightModeli(GL_LIGHT_MODEL_LOCAL_VIEWER, GL_FALSE);
 461                 break;
 462
 463             case D3DRENDERSTATE_NORMALIZENORMALS:     /* 143 */
 464                 if (dwRenderState) {
 465                     glEnable(GL_NORMALIZE);
 466                     glEnable(GL_RESCALE_NORMAL);
 467                 } else {
 468                     glDisable(GL_NORMALIZE);
 469                     glDisable(GL_RESCALE_NORMAL);
 470                 }
 471                 break;
 472
 473             case D3DRENDERSTATE_DIFFUSEMATERIALSOURCE:    /* 145 */
 474             case D3DRENDERSTATE_SPECULARMATERIALSOURCE:   /* 146 */
 475             case D3DRENDERSTATE_AMBIENTMATERIALSOURCE:    /* 147 */
 476             case D3DRENDERSTATE_EMISSIVEMATERIALSOURCE:   /* 148 */
 477                 /* Nothing to do here. Only the storage matters :-) */
 478                 break;
 479
 480             default:
 481                 ERR("Unhandled dwRenderStateType %s (%08x) value : %08lx !\n",
 482                     _get_renderstate(dwRenderStateType), dwRenderStateType, dwRenderState);
 483         }
 484         LEAVE_GL();
 485     }
 486 }
 487
 488 void store_render_state(IDirect3DDeviceImpl *This,
 489                         D3DRENDERSTATETYPE dwRenderStateType, DWORD dwRenderState, STATEBLOCK *lpStateBlock)
 490 {
 491     TRACE("%s = %08lx\n", _get_renderstate(dwRenderStateType), dwRenderState);
 492
 493     /* Some special cases first.. */
 494     if (dwRenderStateType == D3DRENDERSTATE_SRCBLEND) {
 495         if (dwRenderState == D3DBLEND_BOTHSRCALPHA) {
 496             lpStateBlock->render_state[D3DRENDERSTATE_SRCBLEND - 1] = D3DBLEND_SRCALPHA;
 497             lpStateBlock->render_state[D3DRENDERSTATE_DESTBLEND - 1] = D3DBLEND_SRCALPHA;
 498             return;
 499         } else if (dwRenderState == D3DBLEND_BOTHINVSRCALPHA) {
 500             lpStateBlock->render_state[D3DRENDERSTATE_SRCBLEND - 1] = D3DBLEND_INVSRCALPHA;
 501             lpStateBlock->render_state[D3DRENDERSTATE_DESTBLEND - 1] = D3DBLEND_INVSRCALPHA;
 502             return;
 503         }
 504     } else if (dwRenderStateType == D3DRENDERSTATE_TEXTUREADDRESS) {
 505         lpStateBlock->render_state[D3DRENDERSTATE_TEXTUREADDRESSU - 1] = dwRenderState;
 506         lpStateBlock->render_state[D3DRENDERSTATE_TEXTUREADDRESSV - 1] = dwRenderState;
 507     } else if (dwRenderStateType == D3DRENDERSTATE_WRAPU) {
 508         if (dwRenderState)
 509             lpStateBlock->render_state[D3DRENDERSTATE_WRAP0] |= D3DWRAP_U;
 510         else
 511             lpStateBlock->render_state[D3DRENDERSTATE_WRAP0] &= ~D3DWRAP_U;
 512     } else if (dwRenderStateType == D3DRENDERSTATE_WRAPV) {
 513         if (dwRenderState)
 514             lpStateBlock->render_state[D3DRENDERSTATE_WRAP0] |= D3DWRAP_V;
 515         else
 516             lpStateBlock->render_state[D3DRENDERSTATE_WRAP0] &= ~D3DWRAP_V;
 517     }
 518
 519     /* Default case */
 520     lpStateBlock->render_state[dwRenderStateType - 1] = dwRenderState;
 521 }
 522
 523 void get_render_state(IDirect3DDeviceImpl *This,
 524                       D3DRENDERSTATETYPE dwRenderStateType, LPDWORD lpdwRenderState, STATEBLOCK *lpStateBlock)
 525 {
 526     *lpdwRenderState = lpStateBlock->render_state[dwRenderStateType - 1];
 527     if (TRACE_ON(ddraw))
 528         TRACE("%s = %08lx\n", _get_renderstate(dwRenderStateType), *lpdwRenderState);
 529 }
 530
 531 void apply_render_state(IDirect3DDeviceImpl *This, STATEBLOCK *lpStateBlock)
 532 {
 533     DWORD i;
 534     TRACE("(%p,%p)\n", This, lpStateBlock);
 535     for(i = 0; i < HIGHEST_RENDER_STATE; i++)
 536         if (lpStateBlock->set_flags.render_state[i])
 537             set_render_state(This, i + 1, lpStateBlock);
 538 }