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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
  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_ONE:
 201                           rs->src = GL_ONE;
 202                           break;
 203                     case D3DBLEND_SRCALPHA:
 204                           rs->src = GL_SRC_ALPHA;
 205                           break;
 206                     default:
 207                           ERR("Unhandled blend mode %ld !\n",dwRenderState);
 208                 }
 209                 glBlendFunc(rs->src, rs->dst);
 210                 break;
 211
 212             case D3DRENDERSTATE_DESTBLEND:          /* 20 */
 213                 switch ((D3DBLEND) dwRenderState) {
 214                     case D3DBLEND_ONE:
 215                         rs->dst = GL_ONE;
 216                         break;
 217                     case D3DBLEND_INVSRCALPHA:
 218                         rs->dst = GL_ONE_MINUS_SRC_ALPHA;
 219                         break;
 220                     default:
 221                         ERR("Unhandled blend mode %ld !\n",dwRenderState);
 222                 }
 223                 glBlendFunc(rs->src, rs->dst);
 224                 break;
 225
 226             case D3DRENDERSTATE_TEXTUREMAPBLEND:    /* 21 */
 227                 switch ((D3DTEXTUREBLEND) dwRenderState) {
 228                     case D3DTBLEND_MODULATE:
 229                     case D3DTBLEND_MODULATEALPHA:
 230                           glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
 231                           break;
 232                     default:
 233                           ERR("Unhandled texture environment %ld !\n",dwRenderState);
 234                 }
 235                 break;
 236
 237             case D3DRENDERSTATE_CULLMODE:           /* 22 */
 238                 switch ((D3DCULL) dwRenderState) {
 239                     case D3DCULL_NONE:
 240                          glDisable(GL_CULL_FACE);
 241                          break;
 242                     case D3DCULL_CW:
 243                          glEnable(GL_CULL_FACE);
 244                          glFrontFace(GL_CW);
 245                          break;
 246                     case D3DCULL_CCW:
 247                          glEnable(GL_CULL_FACE);
 248                          glFrontFace(GL_CCW);
 249                          break;
 250                     default:
 251                          ERR("Unhandled cull mode %ld !\n",dwRenderState);
 252                 }
 253                 break;
 254
 255             case D3DRENDERSTATE_ZFUNC:            /* 23 */
 256                 glDepthFunc(convert_D3D_compare_to_GL(dwRenderState));
 257                 break;
 258
 259             case D3DRENDERSTATE_ALPHAREF:   /* 24 */
 260                 rs->alpha_ref = dwRenderState / 255.0;
 261                 glAlphaFunc(rs->alpha_func, rs->alpha_ref);
 262                 break;
 263
 264             case D3DRENDERSTATE_ALPHAFUNC: /* 25 */
 265                 rs->alpha_func = convert_D3D_compare_to_GL(dwRenderState);
 266                 glAlphaFunc(rs->alpha_func, rs->alpha_ref);
 267                 break;
 268
 269             case D3DRENDERSTATE_DITHERENABLE:     /* 26 */
 270                 if (dwRenderState)
 271                     glEnable(GL_DITHER);
 272                 else
 273                     glDisable(GL_DITHER);
 274                 break;
 275
 276             case D3DRENDERSTATE_ALPHABLENDENABLE:   /* 27 */
 277                 if (dwRenderState)
 278                     glEnable(GL_BLEND);
 279                 else
 280                     glDisable(GL_BLEND);
 281                 break;
 282
 283             case D3DRENDERSTATE_FOGENABLE: /* 28 */
 284                 if (dwRenderState)
 285                     glEnable(GL_FOG);
 286                 else
 287                     glDisable(GL_FOG);
 288                 break;
 289
 290             case D3DRENDERSTATE_SPECULARENABLE: /* 29 */
 291                 if (dwRenderState)
 292                     ERR(" Specular Lighting not supported yet.\n");
 293                 break;
 294
 295             case D3DRENDERSTATE_SUBPIXEL:  /* 31 */
 296             case D3DRENDERSTATE_SUBPIXELX: /* 32 */
 297                 /* We do not support this anyway, so why protest :-) */
 298                 break;
 299
 300             case D3DRENDERSTATE_FOGCOLOR: { /* 34 */
 301                 GLint color[4];
 302                 color[0] = (dwRenderState >> 16) & 0xFF;
 303                 color[1] = (dwRenderState >>  8) & 0xFF;
 304                 color[2] = (dwRenderState >>  0) & 0xFF;
 305                 color[3] = (dwRenderState >> 24) & 0xFF;
 306                 glFogiv(GL_FOG_COLOR, color);
 307             } break;
 308
 309
 310             case D3DRENDERSTATE_COLORKEYENABLE:     /* 41 */
 311                 if (dwRenderState)
 312                     glEnable(GL_BLEND);
 313                 else
 314                     glDisable(GL_BLEND);
 315                 break;
 316
 317             case D3DRENDERSTATE_ZBIAS: /* 47 */
 318                 /* This is a tad bit hacky.. But well, no idea how to do it better in OpenGL :-/ */
 319                 if (dwRenderState == 0) {
 320                     glDisable(GL_POLYGON_OFFSET_FILL);
 321                     glDisable(GL_POLYGON_OFFSET_LINE);
 322                     glDisable(GL_POLYGON_OFFSET_POINT);
 323                 } else {
 324                     glEnable(GL_POLYGON_OFFSET_FILL);
 325                     glEnable(GL_POLYGON_OFFSET_LINE);
 326                     glEnable(GL_POLYGON_OFFSET_POINT);
 327                     glPolygonOffset(1.0, dwRenderState * 1.0);
 328                 }
 329                 break;
 330
 331             case D3DRENDERSTATE_FLUSHBATCH:         /* 50 */
 332                 break;
 333
 334             default:
 335                 ERR("Unhandled dwRenderStateType %s !\n", _get_renderstate(dwRenderStateType));
 336         }
 337         LEAVE_GL();
 338     }
 339 }