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             case D3DRENDERSTATE_TEXTUREADDRESSU:  /* 44 */
  87             case D3DRENDERSTATE_TEXTUREADDRESSV:  /* 45 */
  88             case D3DRENDERSTATE_TEXTUREADDRESS: { /*  3 */
  89                 GLenum arg = GL_REPEAT; /* Default value */
  90                 switch ((D3DTEXTUREADDRESS) dwRenderState) {
  91                     case D3DTADDRESS_WRAP:   arg = GL_REPEAT; break;
  92                     case D3DTADDRESS_CLAMP:  arg = GL_CLAMP; break;
  93                     case D3DTADDRESS_BORDER: arg = GL_CLAMP_TO_EDGE; break;
  94                     default: ERR("Unhandled TEXTUREADDRESS mode %ld !\n", dwRenderState);
  95                 }
  96                 if ((dwRenderStateType == D3DRENDERSTATE_TEXTUREADDRESSU) ||
  97                     (dwRenderStateType == D3DRENDERSTATE_TEXTUREADDRESS))
  98                     glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, arg);
  99                 if ((dwRenderStateType == D3DRENDERSTATE_TEXTUREADDRESSV) ||
 100                     (dwRenderStateType == D3DRENDERSTATE_TEXTUREADDRESS))
 101                     glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, arg);
 102             } break;
 103
 104             case D3DRENDERSTATE_TEXTUREPERSPECTIVE: /* 4 */
 105                 if (dwRenderState)
 106                     glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST);
 107                 else
 108                     glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_FASTEST);
 109                 break;
 110
 111             case D3DRENDERSTATE_ZENABLE:          /*  7 */
 112                 if (dwRenderState)
 113                     glEnable(GL_DEPTH_TEST);
 114                 else
 115                     glDisable(GL_DEPTH_TEST);
 116                 break;
 117
 118             case D3DRENDERSTATE_FILLMODE:           /*  8 */
 119                 switch ((D3DFILLMODE) dwRenderState) {
 120                     case D3DFILL_POINT:
 121                         glPolygonMode(GL_FRONT_AND_BACK,GL_POINT);
 122                         break;
 123                     case D3DFILL_WIREFRAME:
 124                         glPolygonMode(GL_FRONT_AND_BACK,GL_LINE);
 125                         break;
 126                     case D3DFILL_SOLID:
 127                         glPolygonMode(GL_FRONT_AND_BACK,GL_FILL);
 128                         break;
 129                     default:
 130                         ERR("Unhandled fill mode %ld !\n",dwRenderState);
 131                  }
 132                  break;
 133
 134             case D3DRENDERSTATE_SHADEMODE:          /*  9 */
 135                 switch ((D3DSHADEMODE) dwRenderState) {
 136                     case D3DSHADE_FLAT:
 137                         glShadeModel(GL_FLAT);
 138                         break;
 139                     case D3DSHADE_GOURAUD:
 140                         glShadeModel(GL_SMOOTH);
 141                         break;
 142                     default:
 143                         ERR("Unhandled shade mode %ld !\n",dwRenderState);
 144                 }
 145                 break;
 146
 147             case D3DRENDERSTATE_ZWRITEENABLE:     /* 14 */
 148                 if (dwRenderState)
 149                     glDepthMask(GL_TRUE);
 150                 else
 151                     glDepthMask(GL_FALSE);
 152                 break;
 153
 154             case D3DRENDERSTATE_ALPHATESTENABLE:  /* 15 */
 155                 if (dwRenderState)
 156                     glEnable(GL_ALPHA_TEST);
 157                 else
 158                     glDisable(GL_ALPHA_TEST);
 159                 break;
 160
 161             case D3DRENDERSTATE_TEXTUREMAG:       /* 17 */
 162                 switch ((D3DTEXTUREFILTER) dwRenderState) {
 163                     case D3DFILTER_NEAREST:
 164                         rs->mag = GL_NEAREST;
 165                         break;
 166                     case D3DFILTER_LINEAR:
 167                         rs->mag = GL_LINEAR;
 168                         break;
 169                     default:
 170                         ERR("Unhandled texture mag %ld !\n",dwRenderState);
 171                 }
 172                 break;
 173
 174             case D3DRENDERSTATE_TEXTUREMIN:         /* 18 */
 175                 switch ((D3DTEXTUREFILTER) dwRenderState) {
 176                     case D3DFILTER_NEAREST:
 177                         rs->min = GL_NEAREST;
 178                         break;
 179                     case D3DFILTER_LINEAR:
 180                         rs->mag = GL_LINEAR;
 181                         break;
 182                     default:
 183                         ERR("Unhandled texture min %ld !\n",dwRenderState);
 184                 }
 185                 break;
 186
 187             case D3DRENDERSTATE_SRCBLEND:           /* 19 */
 188                 switch ((D3DBLEND) dwRenderState) {
 189                     case D3DBLEND_ONE:
 190                           rs->src = GL_ONE;
 191                           break;
 192                     case D3DBLEND_SRCALPHA:
 193                           rs->src = GL_SRC_ALPHA;
 194                           break;
 195                     default:
 196                           ERR("Unhandled blend mode %ld !\n",dwRenderState);
 197                 }
 198                 glBlendFunc(rs->src, rs->dst);
 199                 break;
 200
 201             case D3DRENDERSTATE_DESTBLEND:          /* 20 */
 202                 switch ((D3DBLEND) dwRenderState) {
 203                     case D3DBLEND_ONE:
 204                         rs->dst = GL_ONE;
 205                         break;
 206                     case D3DBLEND_INVSRCALPHA:
 207                         rs->dst = GL_ONE_MINUS_SRC_ALPHA;
 208                         break;
 209                     default:
 210                         ERR("Unhandled blend mode %ld !\n",dwRenderState);
 211                 }
 212                 glBlendFunc(rs->src, rs->dst);
 213                 break;
 214
 215             case D3DRENDERSTATE_TEXTUREMAPBLEND:    /* 21 */
 216                 switch ((D3DTEXTUREBLEND) dwRenderState) {
 217                     case D3DTBLEND_MODULATE:
 218                     case D3DTBLEND_MODULATEALPHA:
 219                           glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
 220                           break;
 221                     default:
 222                           ERR("Unhandled texture environment %ld !\n",dwRenderState);
 223                 }
 224                 break;
 225
 226             case D3DRENDERSTATE_CULLMODE:           /* 22 */
 227                 switch ((D3DCULL) dwRenderState) {
 228                     case D3DCULL_NONE:
 229                          glDisable(GL_CULL_FACE);
 230                          break;
 231                     case D3DCULL_CW:
 232                          glEnable(GL_CULL_FACE);
 233                          glFrontFace(GL_CW);
 234                          break;
 235                     case D3DCULL_CCW:
 236                          glEnable(GL_CULL_FACE);
 237                          glFrontFace(GL_CCW);
 238                          break;
 239                     default:
 240                          ERR("Unhandled cull mode %ld !\n",dwRenderState);
 241                 }
 242                 break;
 243
 244             case D3DRENDERSTATE_ZFUNC:            /* 23 */
 245                 glDepthFunc(convert_D3D_compare_to_GL(dwRenderState));
 246                 break;
 247
 248             case D3DRENDERSTATE_ALPHAREF:   /* 24 */
 249                 rs->alpha_ref = dwRenderState / 255.0;
 250                 glAlphaFunc(rs->alpha_func, rs->alpha_ref);
 251                 break;
 252
 253             case D3DRENDERSTATE_ALPHAFUNC: /* 25 */
 254                 rs->alpha_func = convert_D3D_compare_to_GL(dwRenderState);
 255                 glAlphaFunc(rs->alpha_func, rs->alpha_ref);
 256                 break;
 257
 258             case D3DRENDERSTATE_DITHERENABLE:     /* 26 */
 259                 if (dwRenderState)
 260                     glEnable(GL_DITHER);
 261                 else
 262                     glDisable(GL_DITHER);
 263                 break;
 264
 265             case D3DRENDERSTATE_ALPHABLENDENABLE:   /* 27 */
 266                 if (dwRenderState)
 267                     glEnable(GL_BLEND);
 268                 else
 269                     glDisable(GL_BLEND);
 270                 break;
 271
 272             case D3DRENDERSTATE_COLORKEYENABLE:     /* 41 */
 273                 if (dwRenderState)
 274                     glEnable(GL_BLEND);
 275                 else
 276                     glDisable(GL_BLEND);
 277                 break;
 278
 279             case D3DRENDERSTATE_FLUSHBATCH:         /* 50 */
 280                 break;
 281
 282             default:
 283                 ERR("Unhandled dwRenderStateType %s !\n", _get_renderstate(dwRenderStateType));
 284         }
 285         LEAVE_GL();
 286     }
 287 }