dlls/ddraw/mesa.c

   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                 IDirect3DDevice7_SetTexture(ICOM_INTERFACE(This, IDirect3DDevice7),
 105                                             0,
 106                                             ICOM_INTERFACE(tex, IDirectDrawSurface7));
 107             } break;
 108
 109             case D3DRENDERSTATE_TEXTUREADDRESSU:  /* 44 */
 110             case D3DRENDERSTATE_TEXTUREADDRESSV:  /* 45 */
 111             case D3DRENDERSTATE_TEXTUREADDRESS: { /*  3 */
 112                 D3DTEXTURESTAGESTATETYPE d3dTexStageStateType;
 113
 114                 if (dwRenderStateType == D3DRENDERSTATE_TEXTUREADDRESS) d3dTexStageStateType = D3DTSS_ADDRESS;
 115                 else if (dwRenderStateType == D3DRENDERSTATE_TEXTUREADDRESSU) d3dTexStageStateType = D3DTSS_ADDRESSU;
 116                 else d3dTexStageStateType = D3DTSS_ADDRESSV;
 117
 118                 IDirect3DDevice7_SetTextureStageState(ICOM_INTERFACE(This, IDirect3DDevice7),
 119                                                       0, d3dTexStageStateType,
 120                                                       dwRenderState);
 121             } break;
 122
 123             case D3DRENDERSTATE_TEXTUREPERSPECTIVE: /* 4 */
 124                 if (dwRenderState)
 125                     glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST);
 126                 else
 127                     glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_FASTEST);
 128                 break;
 129
 130             case D3DRENDERSTATE_WRAPU: /* 5 */
 131             case D3DRENDERSTATE_WRAPV: /* 6 */
 132             case D3DRENDERSTATE_WRAP0: /* 128 */
 133             case D3DRENDERSTATE_WRAP1: /* 129 */
 134             case D3DRENDERSTATE_WRAP2: /* 130 */
 135             case D3DRENDERSTATE_WRAP3: /* 131 */
 136             case D3DRENDERSTATE_WRAP4: /* 132 */
 137             case D3DRENDERSTATE_WRAP5: /* 133 */
 138             case D3DRENDERSTATE_WRAP6: /* 134 */
 139             case D3DRENDERSTATE_WRAP7: /* 135 */
 140                 if (dwRenderState)
 141                     ERR("Texture WRAP modes unsupported by OpenGL.. Expect graphical glitches !\n");
 142                 break;
 143
 144             case D3DRENDERSTATE_ZENABLE:          /*  7 */
 145                 /* To investigate : in OpenGL, if we disable the depth test, the Z buffer will NOT be
 146                    updated either.. No idea about what happens in D3D.
 147
 148                    Maybe replacing the Z function by ALWAYS would be a better idea. */
 149                 if (dwRenderState == D3DZB_TRUE)
 150                     glEnable(GL_DEPTH_TEST);
 151                 else if (dwRenderState == D3DZB_FALSE)
 152                     glDisable(GL_DEPTH_TEST);
 153                 else {
 154                     glEnable(GL_DEPTH_TEST);
 155                     WARN(" w-buffering not supported.\n");
 156                 }
 157                 break;
 158
 159             case D3DRENDERSTATE_FILLMODE:           /*  8 */
 160                 switch ((D3DFILLMODE) dwRenderState) {
 161                     case D3DFILL_POINT:
 162                         glPolygonMode(GL_FRONT_AND_BACK,GL_POINT);
 163                         break;
 164                     case D3DFILL_WIREFRAME:
 165                         glPolygonMode(GL_FRONT_AND_BACK,GL_LINE);
 166                         break;
 167                     case D3DFILL_SOLID:
 168                         glPolygonMode(GL_FRONT_AND_BACK,GL_FILL);
 169                         break;
 170                     default:
 171                         ERR("Unhandled fill mode %ld !\n",dwRenderState);
 172                  }
 173                  break;
 174
 175             case D3DRENDERSTATE_SHADEMODE:          /*  9 */
 176                 switch ((D3DSHADEMODE) dwRenderState) {
 177                     case D3DSHADE_FLAT:
 178                         glShadeModel(GL_FLAT);
 179                         break;
 180                     case D3DSHADE_GOURAUD:
 181                         glShadeModel(GL_SMOOTH);
 182                         break;
 183                     default:
 184                         ERR("Unhandled shade mode %ld !\n",dwRenderState);
 185                 }
 186                 break;
 187
 188             case D3DRENDERSTATE_ZWRITEENABLE:     /* 14 */
 189                 if (dwRenderState)
 190                     glDepthMask(GL_TRUE);
 191                 else
 192                     glDepthMask(GL_FALSE);
 193                 break;
 194
 195             case D3DRENDERSTATE_ALPHATESTENABLE:  /* 15 */
 196                 if (dwRenderState)
 197                     glEnable(GL_ALPHA_TEST);
 198                 else
 199                     glDisable(GL_ALPHA_TEST);
 200                 break;
 201
 202             case D3DRENDERSTATE_TEXTUREMAG: {     /* 17 */
 203                 DWORD tex_mag = 0xFFFFFFFF;
 204
 205                 switch ((D3DTEXTUREFILTER) dwRenderState) {
 206                     case D3DFILTER_NEAREST:
 207                         tex_mag = D3DTFG_POINT;
 208                         break;
 209                     case D3DFILTER_LINEAR:
 210                         tex_mag = D3DTFG_LINEAR;
 211                         break;
 212                     default:
 213                         ERR("Unhandled texture mag %ld !\n",dwRenderState);
 214                 }
 215
 216                 if (tex_mag != 0xFFFFFFFF) {
 217                     IDirect3DDevice7_SetTextureStageState(ICOM_INTERFACE(This, IDirect3DDevice7), 0, D3DTSS_MAGFILTER, tex_mag);
 218                 }
 219             } break;
 220
 221             case D3DRENDERSTATE_TEXTUREMIN: {       /* 18 */
 222                 DWORD tex_min = 0xFFFFFFFF;
 223
 224                 switch ((D3DTEXTUREFILTER) dwRenderState) {
 225                     case D3DFILTER_NEAREST:
 226                         tex_min = D3DTFN_POINT;
 227                         break;
 228                     case D3DFILTER_LINEAR:
 229                         tex_min = D3DTFN_LINEAR;
 230                         break;
 231                     default:
 232                         ERR("Unhandled texture min %ld !\n",dwRenderState);
 233                 }
 234
 235                 if (tex_min != 0xFFFFFFFF) {
 236                     IDirect3DDevice7_SetTextureStageState(ICOM_INTERFACE(This, IDirect3DDevice7), 0, D3DTSS_MINFILTER, tex_min);
 237                 }
 238             } break;
 239
 240             case D3DRENDERSTATE_SRCBLEND:           /* 19 */
 241             case D3DRENDERSTATE_DESTBLEND:          /* 20 */
 242                 glBlendFunc(convert_D3D_blendop_to_GL(lpStateBlock->render_state[D3DRENDERSTATE_SRCBLEND - 1]),
 243                             convert_D3D_blendop_to_GL(lpStateBlock->render_state[D3DRENDERSTATE_DESTBLEND - 1]));
 244                 break;
 245
 246             case D3DRENDERSTATE_TEXTUREMAPBLEND:    /* 21 */
 247                 switch ((D3DTEXTUREBLEND) dwRenderState) {
 248                     case D3DTBLEND_DECAL:
 249                         glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_DECAL);
 250                         break;
 251                     case D3DTBLEND_MODULATE:
 252                     case D3DTBLEND_MODULATEALPHA:
 253                         glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
 254                         break;
 255                     default:
 256                         ERR("Unhandled texture environment %ld !\n",dwRenderState);
 257                 }
 258                 break;
 259
 260             case D3DRENDERSTATE_CULLMODE:           /* 22 */
 261                 switch ((D3DCULL) dwRenderState) {
 262                     case D3DCULL_NONE:
 263                          glDisable(GL_CULL_FACE);
 264                          break;
 265                     case D3DCULL_CW:
 266                          glEnable(GL_CULL_FACE);
 267                          glFrontFace(GL_CCW);
 268                          glCullFace(GL_BACK);
 269                          break;
 270                     case D3DCULL_CCW:
 271                          glEnable(GL_CULL_FACE);
 272                          glFrontFace(GL_CW);
 273                          glCullFace(GL_BACK);
 274                          break;
 275                     default:
 276                          ERR("Unhandled cull mode %ld !\n",dwRenderState);
 277                 }
 278                 break;
 279
 280             case D3DRENDERSTATE_ZFUNC:            /* 23 */
 281                 glDepthFunc(convert_D3D_compare_to_GL(dwRenderState));
 282                 break;
 283
 284             case D3DRENDERSTATE_ALPHAREF:   /* 24 */
 285             case D3DRENDERSTATE_ALPHAFUNC:  /* 25 */
 286                 glAlphaFunc(convert_D3D_compare_to_GL(lpStateBlock->render_state[D3DRENDERSTATE_ALPHAFUNC - 1]),
 287                             (lpStateBlock->render_state[D3DRENDERSTATE_ALPHAREF - 1] & 0x000000FF) / 255.0);
 288                 break;
 289
 290             case D3DRENDERSTATE_DITHERENABLE:     /* 26 */
 291                 if (dwRenderState)
 292                     glEnable(GL_DITHER);
 293                 else
 294                     glDisable(GL_DITHER);
 295                 break;
 296
 297             case D3DRENDERSTATE_ALPHABLENDENABLE:   /* 27 */
 298                 if (dwRenderState) {
 299                     glEnable(GL_BLEND);
 300                 } else {
 301                     glDisable(GL_BLEND);
 302                 }
 303                 break;
 304
 305             case D3DRENDERSTATE_FOGENABLE: /* 28 */
 306                 /* Nothing to do here. Only the storage matters :-) */
 307                 break;
 308
 309             case D3DRENDERSTATE_SPECULARENABLE: /* 29 */
 310                 if (dwRenderState)
 311                     ERR(" Specular Lighting not supported yet.\n");
 312                 break;
 313
 314             case D3DRENDERSTATE_SUBPIXEL:  /* 31 */
 315             case D3DRENDERSTATE_SUBPIXELX: /* 32 */
 316                 /* We do not support this anyway, so why protest :-) */
 317                 break;
 318
 319             case D3DRENDERSTATE_STIPPLEDALPHA: /* 33 */
 320                 if (dwRenderState)
 321                     ERR(" Stippled Alpha not supported yet.\n");
 322                 break;
 323
 324             case D3DRENDERSTATE_FOGCOLOR: { /* 34 */
 325                 GLfloat color[4];
 326                 color[0] = ((dwRenderState >> 16) & 0xFF)/255.0f;
 327                 color[1] = ((dwRenderState >>  8) & 0xFF)/255.0f;
 328                 color[2] = ((dwRenderState >>  0) & 0xFF)/255.0f;
 329                 color[3] = ((dwRenderState >> 24) & 0xFF)/255.0f;
 330                 glFogfv(GL_FOG_COLOR,color);
 331                 /* Note: glFogiv does not seem to work */
 332             } break;
 333
 334             case D3DRENDERSTATE_FOGTABLEMODE:  /* 35 */
 335             case D3DRENDERSTATE_FOGVERTEXMODE: /* 140 */
 336             case D3DRENDERSTATE_FOGSTART:      /* 36 */
 337             case D3DRENDERSTATE_FOGEND:        /* 37 */
 338                 /* Nothing to do here. Only the storage matters :-) */
 339                 break;
 340
 341             case D3DRENDERSTATE_FOGDENSITY:    /* 38 */
 342                 glFogi(GL_FOG_DENSITY,*(float*)&dwRenderState);
 343                 break;
 344
 345             case D3DRENDERSTATE_COLORKEYENABLE:     /* 41 */
 346                 /* This needs to be fixed. */
 347                 if (dwRenderState)
 348                     glEnable(GL_BLEND);
 349                 else
 350                     glDisable(GL_BLEND);
 351                 break;
 352
 353             case D3DRENDERSTATE_ZBIAS: /* 47 */
 354                 /* This is a tad bit hacky.. But well, no idea how to do it better in OpenGL :-/ */
 355                 if (dwRenderState == 0) {
 356                     glDisable(GL_POLYGON_OFFSET_FILL);
 357                     glDisable(GL_POLYGON_OFFSET_LINE);
 358                     glDisable(GL_POLYGON_OFFSET_POINT);
 359                 } else {
 360                     glEnable(GL_POLYGON_OFFSET_FILL);
 361                     glEnable(GL_POLYGON_OFFSET_LINE);
 362                     glEnable(GL_POLYGON_OFFSET_POINT);
 363                     glPolygonOffset(1.0, dwRenderState * 1.0);
 364                 }
 365                 break;
 366
 367             case D3DRENDERSTATE_FLUSHBATCH:         /* 50 */
 368                 break;
 369
 370             case D3DRENDERSTATE_STENCILENABLE:    /* 52 */
 371                 if (dwRenderState)
 372                     glEnable(GL_STENCIL_TEST);
 373                 else
 374                     glDisable(GL_STENCIL_TEST);
 375                 break;
 376
 377             case D3DRENDERSTATE_STENCILFAIL:      /* 53 */
 378             case D3DRENDERSTATE_STENCILZFAIL:     /* 54 */
 379             case D3DRENDERSTATE_STENCILPASS:      /* 55 */
 380                 glStencilOp(convert_D3D_stencilop_to_GL(lpStateBlock->render_state[D3DRENDERSTATE_STENCILFAIL - 1]),
 381                             convert_D3D_stencilop_to_GL(lpStateBlock->render_state[D3DRENDERSTATE_STENCILZFAIL - 1]),
 382                             convert_D3D_stencilop_to_GL(lpStateBlock->render_state[D3DRENDERSTATE_STENCILPASS - 1]));
 383                 break;
 384
 385             case D3DRENDERSTATE_STENCILFUNC:      /* 56 */
 386             case D3DRENDERSTATE_STENCILREF:       /* 57 */
 387             case D3DRENDERSTATE_STENCILMASK:      /* 58 */
 388                 glStencilFunc(convert_D3D_compare_to_GL(lpStateBlock->render_state[D3DRENDERSTATE_STENCILFUNC - 1]),
 389                               lpStateBlock->render_state[D3DRENDERSTATE_STENCILREF - 1],
 390                               lpStateBlock->render_state[D3DRENDERSTATE_STENCILMASK - 1]);
 391                 break;
 392
 393             case D3DRENDERSTATE_STENCILWRITEMASK: /* 59 */
 394                 glStencilMask(dwRenderState);
 395                 break;
 396
 397             case D3DRENDERSTATE_TEXTUREFACTOR:      /* 60 */
 398                 /* Only the storage matters... */
 399                 break;
 400
 401             case D3DRENDERSTATE_CLIPPING:          /* 136 */
 402             case D3DRENDERSTATE_CLIPPLANEENABLE: { /* 152 */
 403                     GLint i;
 404                     DWORD mask, runner;
 405
 406                     if (dwRenderStateType == D3DRENDERSTATE_CLIPPING) {
 407                         mask = ((dwRenderState) ?
 408                                 (This->state_block.render_state[D3DRENDERSTATE_CLIPPLANEENABLE - 1]) : (0x00000000));
 409                     } else {
 410                         mask = dwRenderState;
 411                     }
 412                     for (i = 0, runner = 0x00000001; i < This->max_clipping_planes; i++, runner = (runner << 1)) {
 413                         if (mask & runner) {
 414                             GLint enabled;
 415                             glGetIntegerv(GL_CLIP_PLANE0 + i, &enabled);
 416                             if (enabled == GL_FALSE) {
 417                                 glEnable(GL_CLIP_PLANE0 + i);
 418                                 /* Need to force a transform change so that this clipping plane parameters are sent
 419                                  * properly to GL.
 420                                  */
 421                                 glThis->transform_state = GL_TRANSFORM_NONE;
 422                             }
 423                         } else {
 424                             glDisable(GL_CLIP_PLANE0 + i);
 425                         }
 426                     }
 427                 }
 428                 break;
 429
 430             case D3DRENDERSTATE_LIGHTING:    /* 137 */
 431                 if (dwRenderState)
 432                     glEnable(GL_LIGHTING);
 433                 else
 434                     glDisable(GL_LIGHTING);
 435                 break;
 436
 437             case D3DRENDERSTATE_AMBIENT: {            /* 139 */
 438                 float light[4];
 439
 440                 light[0] = ((dwRenderState >> 16) & 0xFF) / 255.0;
 441                 light[1] = ((dwRenderState >>  8) & 0xFF) / 255.0;
 442                 light[2] = ((dwRenderState >>  0) & 0xFF) / 255.0;
 443                 light[3] = ((dwRenderState >> 24) & 0xFF) / 255.0;
 444                 glLightModelfv(GL_LIGHT_MODEL_AMBIENT, (float *) light);
 445             } break;
 446
 447             case D3DRENDERSTATE_COLORVERTEX:          /* 141 */
 448                   /* Nothing to do here.. Only storage matters */
 449                   break;
 450
 451             case D3DRENDERSTATE_LOCALVIEWER:          /* 142 */
 452                 if (dwRenderState)
 453                     glLightModeli(GL_LIGHT_MODEL_LOCAL_VIEWER, GL_TRUE);
 454                 else
 455                     glLightModeli(GL_LIGHT_MODEL_LOCAL_VIEWER, GL_FALSE);
 456                 break;
 457
 458             case D3DRENDERSTATE_NORMALIZENORMALS:     /* 143 */
 459                 if (dwRenderState) {
 460                     glEnable(GL_NORMALIZE);
 461                     glEnable(GL_RESCALE_NORMAL);
 462                 } else {
 463                     glDisable(GL_NORMALIZE);
 464                     glDisable(GL_RESCALE_NORMAL);
 465                 }
 466                 break;
 467
 468             case D3DRENDERSTATE_DIFFUSEMATERIALSOURCE:    /* 145 */
 469             case D3DRENDERSTATE_SPECULARMATERIALSOURCE:   /* 146 */
 470             case D3DRENDERSTATE_AMBIENTMATERIALSOURCE:    /* 147 */
 471             case D3DRENDERSTATE_EMISSIVEMATERIALSOURCE:   /* 148 */
 472                 /* Nothing to do here. Only the storage matters :-) */
 473                 break;
 474
 475             default:
 476                 ERR("Unhandled dwRenderStateType %s (%08x) value : %08lx !\n",
 477                     _get_renderstate(dwRenderStateType), dwRenderStateType, dwRenderState);
 478         }
 479         LEAVE_GL();
 480     }
 481 }
 482
 483 void store_render_state(IDirect3DDeviceImpl *This,
 484                         D3DRENDERSTATETYPE dwRenderStateType, DWORD dwRenderState, STATEBLOCK *lpStateBlock)
 485 {
 486     TRACE("%s = %08lx\n", _get_renderstate(dwRenderStateType), dwRenderState);
 487
 488     /* Some special cases first.. */
 489     if (dwRenderStateType == D3DRENDERSTATE_SRCBLEND) {
 490         if (dwRenderState == D3DBLEND_BOTHSRCALPHA) {
 491             lpStateBlock->render_state[D3DRENDERSTATE_SRCBLEND - 1] = D3DBLEND_SRCALPHA;
 492             lpStateBlock->render_state[D3DRENDERSTATE_DESTBLEND - 1] = D3DBLEND_SRCALPHA;
 493             return;
 494         } else if (dwRenderState == D3DBLEND_BOTHINVSRCALPHA) {
 495             lpStateBlock->render_state[D3DRENDERSTATE_SRCBLEND - 1] = D3DBLEND_INVSRCALPHA;
 496             lpStateBlock->render_state[D3DRENDERSTATE_DESTBLEND - 1] = D3DBLEND_INVSRCALPHA;
 497             return;
 498         }
 499     } else if (dwRenderStateType == D3DRENDERSTATE_TEXTUREADDRESS) {
 500         lpStateBlock->render_state[D3DRENDERSTATE_TEXTUREADDRESSU - 1] = dwRenderState;
 501         lpStateBlock->render_state[D3DRENDERSTATE_TEXTUREADDRESSV - 1] = dwRenderState;
 502     } else if (dwRenderStateType == D3DRENDERSTATE_WRAPU) {
 503         if (dwRenderState)
 504             lpStateBlock->render_state[D3DRENDERSTATE_WRAP0] |= D3DWRAP_U;
 505         else
 506             lpStateBlock->render_state[D3DRENDERSTATE_WRAP0] &= ~D3DWRAP_U;
 507     } else if (dwRenderStateType == D3DRENDERSTATE_WRAPV) {
 508         if (dwRenderState)
 509             lpStateBlock->render_state[D3DRENDERSTATE_WRAP0] |= D3DWRAP_V;
 510         else
 511             lpStateBlock->render_state[D3DRENDERSTATE_WRAP0] &= ~D3DWRAP_V;
 512     }
 513
 514     /* Default case */
 515     lpStateBlock->render_state[dwRenderStateType - 1] = dwRenderState;
 516 }
 517
 518 void get_render_state(IDirect3DDeviceImpl *This,
 519                       D3DRENDERSTATETYPE dwRenderStateType, LPDWORD lpdwRenderState, STATEBLOCK *lpStateBlock)
 520 {
 521     *lpdwRenderState = lpStateBlock->render_state[dwRenderStateType - 1];
 522     if (TRACE_ON(ddraw))
 523         TRACE("%s = %08lx\n", _get_renderstate(dwRenderStateType), *lpdwRenderState);
 524 }
 525
 526 void apply_render_state(IDirect3DDeviceImpl *This, STATEBLOCK *lpStateBlock)
 527 {
 528     DWORD i;
 529     TRACE("(%p,%p)\n", This, lpStateBlock);
 530     for(i = 0; i < HIGHEST_RENDER_STATE; i++)
 531         if (lpStateBlock->set_flags.render_state[i])
 532             set_render_state(This, i + 1, lpStateBlock);
 533 }