git.oblomov.eu Git - wine/blob - 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
  50 void set_render_state(D3DRENDERSTATETYPE dwRenderStateType,
  51                       DWORD dwRenderState, RenderState *rs)
  52 {
  53     if (TRACE_ON(ddraw))
  54         TRACE("%s = %08lx\n", _get_renderstate(dwRenderStateType), dwRenderState);
  55
  56     /* First, all the stipple patterns */
  57     if ((dwRenderStateType >= D3DRENDERSTATE_STIPPLEPATTERN00) &&
  58         (dwRenderStateType <= D3DRENDERSTATE_STIPPLEPATTERN31)) {
  59         ERR("Unhandled dwRenderStateType stipple %d!\n",dwRenderStateType);
  60     } else {
  61         ENTER_GL();
  62
  63         /* All others state variables */
  64         switch (dwRenderStateType) {
  65             case D3DRENDERSTATE_TEXTUREHANDLE: {    /*  1 */
  66                 IDirectDrawSurfaceImpl *tex = (IDirectDrawSurfaceImpl*) dwRenderState;
  67
  68                 if (tex == NULL) {
  69                     glBindTexture(GL_TEXTURE_2D, 0);
  70                     glDisable(GL_TEXTURE_2D);
  71                     TRACE("disabling texturing\n");
  72                 } else {
  73                     IDirect3DTextureGLImpl *gl_tex = (IDirect3DTextureGLImpl *) tex->tex_private;
  74
  75                     glEnable(GL_TEXTURE_2D);
  76                     /* Default parameters */
  77                     glBindTexture(GL_TEXTURE_2D, gl_tex->tex_name);
  78                     /* To prevent state change, we could test here what are the parameters
  79                        stored in the texture */
  80                     glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, rs->mag);
  81                     glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, rs->min);
  82                     TRACE("setting OpenGL texture handle : %d\n", gl_tex->tex_name);
  83                 }
  84             } break;
  85
  86
  87             case D3DRENDERSTATE_TEXTUREADDRESSU:  /* 44 */
  88             case D3DRENDERSTATE_TEXTUREADDRESSV:  /* 45 */
  89             case D3DRENDERSTATE_TEXTUREADDRESS: { /*  3 */
  90                 GLenum arg = GL_REPEAT; /* Default value */
  91                 switch ((D3DTEXTUREADDRESS) dwRenderState) {
  92                     case D3DTADDRESS_WRAP:   arg = GL_REPEAT; break;
  93                     case D3DTADDRESS_CLAMP:  arg = GL_CLAMP; break;
  94                     case D3DTADDRESS_BORDER: arg = GL_CLAMP_TO_EDGE; break;
  95                     default: ERR("Unhandled TEXTUREADDRESS mode %ld !\n", dwRenderState);
  96                 }
  97                 if ((dwRenderStateType == D3DRENDERSTATE_TEXTUREADDRESSU) ||
  98                     (dwRenderStateType == D3DRENDERSTATE_TEXTUREADDRESS))
  99                     glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, arg);
 100                 if ((dwRenderStateType == D3DRENDERSTATE_TEXTUREADDRESSV) ||
 101                     (dwRenderStateType == D3DRENDERSTATE_TEXTUREADDRESS))
 102                     glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, arg);
 103             } break;
 104
 105             case D3DRENDERSTATE_TEXTUREPERSPECTIVE: /* 4 */
 106                 if (dwRenderState)
 107                     glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST);
 108                 else
 109                     glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_FASTEST);
 110                 break;
 111
 112             case D3DRENDERSTATE_WRAPU: /* 5 */
 113                 if (dwRenderState)
 114                     ERR("WRAPU mode unsupported by OpenGL.. Expect graphical glitches !\n");
 115                 break;
 116
 117             case D3DRENDERSTATE_WRAPV: /* 6 */
 118                 if (dwRenderState)
 119                     ERR("WRAPV mode unsupported by OpenGL.. Expect graphical glitches !\n");
 120                 break;
 121
 122             case D3DRENDERSTATE_ZENABLE:          /*  7 */
 123                 if (dwRenderState)
 124                     glEnable(GL_DEPTH_TEST);
 125                 else
 126                     glDisable(GL_DEPTH_TEST);
 127                 break;
 128
 129             case D3DRENDERSTATE_FILLMODE:           /*  8 */
 130                 switch ((D3DFILLMODE) dwRenderState) {
 131                     case D3DFILL_POINT:
 132                         glPolygonMode(GL_FRONT_AND_BACK,GL_POINT);
 133                         break;
 134                     case D3DFILL_WIREFRAME:
 135                         glPolygonMode(GL_FRONT_AND_BACK,GL_LINE);
 136                         break;
 137                     case D3DFILL_SOLID:
 138                         glPolygonMode(GL_FRONT_AND_BACK,GL_FILL);
 139                         break;
 140                     default:
 141                         ERR("Unhandled fill mode %ld !\n",dwRenderState);
 142                  }
 143                  break;
 144
 145             case D3DRENDERSTATE_SHADEMODE:          /*  9 */
 146                 switch ((D3DSHADEMODE) dwRenderState) {
 147                     case D3DSHADE_FLAT:
 148                         glShadeModel(GL_FLAT);
 149                         break;
 150                     case D3DSHADE_GOURAUD:
 151                         glShadeModel(GL_SMOOTH);
 152                         break;
 153                     default:
 154                         ERR("Unhandled shade mode %ld !\n",dwRenderState);
 155                 }
 156                 break;
 157
 158             case D3DRENDERSTATE_ZWRITEENABLE:     /* 14 */
 159                 if (dwRenderState)
 160                     glDepthMask(GL_TRUE);
 161                 else
 162                     glDepthMask(GL_FALSE);
 163                 break;
 164
 165             case D3DRENDERSTATE_ALPHATESTENABLE:  /* 15 */
 166                 if (dwRenderState)
 167                     glEnable(GL_ALPHA_TEST);
 168                 else
 169                     glDisable(GL_ALPHA_TEST);
 170                 break;
 171
 172             case D3DRENDERSTATE_TEXTUREMAG:       /* 17 */
 173                 switch ((D3DTEXTUREFILTER) dwRenderState) {
 174                     case D3DFILTER_NEAREST:
 175                         rs->mag = GL_NEAREST;
 176                         break;
 177                     case D3DFILTER_LINEAR:
 178                         rs->mag = GL_LINEAR;
 179                         break;
 180                     default:
 181                         ERR("Unhandled texture mag %ld !\n",dwRenderState);
 182                 }
 183                 break;
 184
 185             case D3DRENDERSTATE_TEXTUREMIN:         /* 18 */
 186                 switch ((D3DTEXTUREFILTER) dwRenderState) {
 187                     case D3DFILTER_NEAREST:
 188                         rs->min = GL_NEAREST;
 189                         break;
 190                     case D3DFILTER_LINEAR:
 191                         rs->mag = GL_LINEAR;
 192                         break;
 193                     default:
 194                         ERR("Unhandled texture min %ld !\n",dwRenderState);
 195                 }
 196                 break;
 197
 198             case D3DRENDERSTATE_SRCBLEND:           /* 19 */
 199                 switch ((D3DBLEND) dwRenderState) {
 200                     case D3DBLEND_ZERO:
 201                           rs->src = GL_ZERO;
 202                           break;
 203                     case D3DBLEND_ONE:
 204                           rs->src = GL_ONE;
 205                           break;
 206                     case D3DBLEND_SRCALPHA:
 207                           rs->src = GL_SRC_ALPHA;
 208                           break;
 209                     case D3DBLEND_INVSRCALPHA:
 210                           rs->src = GL_ONE_MINUS_SRC_ALPHA;
 211                           break;
 212                     case D3DBLEND_DESTALPHA:
 213                           rs->src = GL_DST_ALPHA;
 214                           break;
 215                     case D3DBLEND_INVDESTALPHA:
 216                           rs->src = GL_ONE_MINUS_DST_ALPHA;
 217                           break;
 218                     case D3DBLEND_DESTCOLOR:
 219                           rs->src = GL_DST_COLOR;
 220                           break;
 221                     case D3DBLEND_INVDESTCOLOR:
 222                           rs->src = GL_ONE_MINUS_DST_COLOR;
 223                           break;
 224                     case D3DBLEND_SRCCOLOR:
 225                     case D3DBLEND_INVSRCCOLOR:
 226                           /* Cannot be supported with OpenGL */
 227                           break;
 228                     default:
 229                           ERR("Unhandled src blend mode %ld !\n",dwRenderState);
 230                 }
 231                 glBlendFunc(rs->src, rs->dst);
 232                 break;
 233
 234             case D3DRENDERSTATE_DESTBLEND:          /* 20 */
 235                 switch ((D3DBLEND) dwRenderState) {
 236                     case D3DBLEND_ZERO:
 237                         rs->dst = GL_ZERO;
 238                         break;
 239                     case D3DBLEND_ONE:
 240                         rs->dst = GL_ONE;
 241                         break;
 242                     case D3DBLEND_SRCCOLOR:
 243                         rs->dst = GL_SRC_COLOR;
 244                         break;
 245                     case D3DBLEND_INVSRCCOLOR:
 246                         rs->dst = GL_ONE_MINUS_SRC_COLOR;
 247                         break;
 248                     case D3DBLEND_SRCALPHA:
 249                         rs->dst = GL_SRC_ALPHA;
 250                         break;
 251                     case D3DBLEND_INVSRCALPHA:
 252                         rs->dst = GL_ONE_MINUS_SRC_ALPHA;
 253                         break;
 254                     case D3DBLEND_DESTALPHA:
 255                         rs->dst = GL_DST_ALPHA;
 256                         break;
 257                     case D3DBLEND_INVDESTALPHA:
 258                         rs->dst = GL_ONE_MINUS_DST_ALPHA;
 259                         break;
 260                     case D3DBLEND_DESTCOLOR:
 261                     case D3DBLEND_INVDESTCOLOR:
 262                         /* Cannot be supported with OpenGL */
 263                         break;
 264                     default:
 265                         ERR("Unhandled dest blend mode %ld !\n",dwRenderState);
 266                 }
 267                 glBlendFunc(rs->src, rs->dst);
 268                 break;
 269
 270             case D3DRENDERSTATE_TEXTUREMAPBLEND:    /* 21 */
 271                 switch ((D3DTEXTUREBLEND) dwRenderState) {
 272                     case D3DTBLEND_MODULATE:
 273                     case D3DTBLEND_MODULATEALPHA:
 274                         glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
 275                         break;
 276                     default:
 277                           ERR("Unhandled texture environment %ld !\n",dwRenderState);
 278                 }
 279                 break;
 280
 281             case D3DRENDERSTATE_CULLMODE:           /* 22 */
 282                 switch ((D3DCULL) dwRenderState) {
 283                     case D3DCULL_NONE:
 284                          glDisable(GL_CULL_FACE);
 285                          break;
 286                          /* Not sure about these... The DirectX doc is, well, pretty unclear :-) */
 287                     case D3DCULL_CW:
 288                          glEnable(GL_CULL_FACE);
 289                          glFrontFace(GL_CW);
 290                          glCullFace(GL_BACK);
 291                          break;
 292                     case D3DCULL_CCW:
 293                          glEnable(GL_CULL_FACE);
 294                          glFrontFace(GL_CCW);
 295                          glCullFace(GL_BACK);
 296                          break;
 297                     default:
 298                          ERR("Unhandled cull mode %ld !\n",dwRenderState);
 299                 }
 300                 break;
 301
 302             case D3DRENDERSTATE_ZFUNC:            /* 23 */
 303                 glDepthFunc(convert_D3D_compare_to_GL(dwRenderState));
 304                 break;
 305
 306             case D3DRENDERSTATE_ALPHAREF:   /* 24 */
 307                 rs->alpha_ref = dwRenderState / 255.0;
 308                 glAlphaFunc(rs->alpha_func, rs->alpha_ref);
 309                 break;
 310
 311             case D3DRENDERSTATE_ALPHAFUNC: /* 25 */
 312                 rs->alpha_func = convert_D3D_compare_to_GL(dwRenderState);
 313                 glAlphaFunc(rs->alpha_func, rs->alpha_ref);
 314                 break;
 315
 316             case D3DRENDERSTATE_DITHERENABLE:     /* 26 */
 317                 if (dwRenderState)
 318                     glEnable(GL_DITHER);
 319                 else
 320                     glDisable(GL_DITHER);
 321                 break;
 322
 323             case D3DRENDERSTATE_ALPHABLENDENABLE:   /* 27 */
 324                 if (dwRenderState) {
 325                     glEnable(GL_BLEND);
 326                     rs->alpha_blend_enable = TRUE;
 327                 } else {
 328                     glDisable(GL_BLEND);
 329                     rs->alpha_blend_enable = FALSE;
 330                 }
 331                 break;
 332
 333             case D3DRENDERSTATE_FOGENABLE: /* 28 */
 334                 if (dwRenderState) {
 335                     glEnable(GL_FOG);
 336                     rs->fog_on = TRUE;
 337                 } else {
 338                     glDisable(GL_FOG);
 339                     rs->fog_on = FALSE;
 340                 }
 341                 break;
 342
 343             case D3DRENDERSTATE_SPECULARENABLE: /* 29 */
 344                 if (dwRenderState)
 345                     ERR(" Specular Lighting not supported yet.\n");
 346                 break;
 347
 348             case D3DRENDERSTATE_SUBPIXEL:  /* 31 */
 349             case D3DRENDERSTATE_SUBPIXELX: /* 32 */
 350                 /* We do not support this anyway, so why protest :-) */
 351                 break;
 352
 353             case D3DRENDERSTATE_STIPPLEDALPHA: /* 33 */
 354                 if (dwRenderState)
 355                     ERR(" Stippled Alpha not supported yet.\n");
 356                 break;
 357
 358             case D3DRENDERSTATE_FOGCOLOR: { /* 34 */
 359                 GLint color[4];
 360                 color[0] = (dwRenderState >> 16) & 0xFF;
 361                 color[1] = (dwRenderState >>  8) & 0xFF;
 362                 color[2] = (dwRenderState >>  0) & 0xFF;
 363                 color[3] = (dwRenderState >> 24) & 0xFF;
 364                 glFogiv(GL_FOG_COLOR, color);
 365             } break;
 366
 367
 368             case D3DRENDERSTATE_COLORKEYENABLE:     /* 41 */
 369                 if (dwRenderState)
 370                     glEnable(GL_BLEND);
 371                 else
 372                     glDisable(GL_BLEND);
 373                 break;
 374
 375             case D3DRENDERSTATE_ZBIAS: /* 47 */
 376                 /* This is a tad bit hacky.. But well, no idea how to do it better in OpenGL :-/ */
 377                 if (dwRenderState == 0) {
 378                     glDisable(GL_POLYGON_OFFSET_FILL);
 379                     glDisable(GL_POLYGON_OFFSET_LINE);
 380                     glDisable(GL_POLYGON_OFFSET_POINT);
 381                 } else {
 382                     glEnable(GL_POLYGON_OFFSET_FILL);
 383                     glEnable(GL_POLYGON_OFFSET_LINE);
 384                     glEnable(GL_POLYGON_OFFSET_POINT);
 385                     glPolygonOffset(1.0, dwRenderState * 1.0);
 386                 }
 387                 break;
 388
 389             case D3DRENDERSTATE_FLUSHBATCH:         /* 50 */
 390                 break;
 391
 392             case D3DRENDERSTATE_LIGHTING:    /* 137 */
 393                 /* There will be more to do here once we really support D3D7 Lighting.
 394                    Should be enough for now to prevent warnings :-) */
 395                 if (dwRenderState)
 396                     glEnable(GL_LIGHTING);
 397                 else
 398                     glDisable(GL_LIGHTING);
 399                 break;
 400
 401             default:
 402                 ERR("Unhandled dwRenderStateType %s (%08x) !\n", _get_renderstate(dwRenderStateType), dwRenderStateType);
 403         }
 404         LEAVE_GL();
 405     }
 406 }