dlls/ddraw/d3dlight.c

   1 /* Direct3D Light
   2  * Copyright (c) 1998 / 2002 Lionel ULMER
   3  *
   4  * This file contains the implementation of Direct3DLight.
   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 <stdarg.h>
  24
  25 #define NONAMELESSUNION
  26 #define NONAMELESSSTRUCT
  27 #include "windef.h"
  28 #include "winbase.h"
  29 #include "winerror.h"
  30 #include "objbase.h"
  31 #include "wingdi.h"
  32 #include "ddraw.h"
  33 #include "d3d.h"
  34 #include "wine/debug.h"
  35
  36 #include "d3d_private.h"
  37 #include "mesa_private.h"
  38
  39 WINE_DEFAULT_DEBUG_CHANNEL(ddraw);
  40
  41 /* First, the 'main' interface... */
  42 HRESULT WINAPI
  43 Main_IDirect3DLightImpl_1_QueryInterface(LPDIRECT3DLIGHT iface,
  44                                          REFIID riid,
  45                                          LPVOID* obp)
  46 {
  47     ICOM_THIS_FROM(IDirect3DLightImpl, IDirect3DLight, iface);
  48     FIXME("(%p/%p)->(%s,%p): stub!\n", This, iface, debugstr_guid(riid), obp);
  49     return DD_OK;
  50 }
  51
  52 ULONG WINAPI
  53 Main_IDirect3DLightImpl_1_AddRef(LPDIRECT3DLIGHT iface)
  54 {
  55     ICOM_THIS_FROM(IDirect3DLightImpl, IDirect3DLight, iface);
  56     ULONG ref = InterlockedIncrement(&This->ref);
  57
  58     TRACE("(%p/%p)->() incrementing from %lu.\n", This, iface, ref - 1);
  59
  60     return ref;
  61 }
  62
  63 ULONG WINAPI
  64 Main_IDirect3DLightImpl_1_Release(LPDIRECT3DLIGHT iface)
  65 {
  66     ICOM_THIS_FROM(IDirect3DLightImpl, IDirect3DLight, iface);
  67     ULONG ref = InterlockedDecrement(&This->ref);
  68
  69     TRACE("(%p/%p)->() decrementing from %lu.\n", This, iface, ref + 1);
  70
  71     if (!ref) {
  72         HeapFree(GetProcessHeap(), 0, This);
  73         return 0;
  74     }
  75     return ref;
  76 }
  77
  78 HRESULT WINAPI
  79 Main_IDirect3DLightImpl_1_Initialize(LPDIRECT3DLIGHT iface,
  80                                      LPDIRECT3D lpDirect3D)
  81 {
  82     ICOM_THIS_FROM(IDirect3DLightImpl, IDirect3DLight, iface);
  83     TRACE("(%p/%p)->(%p) no-op...\n", This, iface, lpDirect3D);
  84     return DD_OK;
  85 }
  86
  87 /*** IDirect3DLight methods ***/
  88 static void dump_light(LPD3DLIGHT2 light)
  89 {
  90     DPRINTF("    - dwSize : %ld\n", light->dwSize);
  91 }
  92
  93 static const float zero_value[] = {
  94     0.0, 0.0, 0.0, 0.0
  95 };
  96
  97 HRESULT WINAPI
  98 Main_IDirect3DLightImpl_1_SetLight(LPDIRECT3DLIGHT iface,
  99                                    LPD3DLIGHT lpLight)
 100 {
 101     ICOM_THIS_FROM(IDirect3DLightImpl, IDirect3DLight, iface);
 102     LPD3DLIGHT7 light7 = &(This->light7);
 103     TRACE("(%p/%p)->(%p)\n", This, iface, lpLight);
 104     if (TRACE_ON(ddraw)) {
 105         TRACE("  Light definition : \n");
 106         dump_light((LPD3DLIGHT2) lpLight);
 107     }
 108
 109     if ( (lpLight->dltType == 0) || (lpLight->dltType > D3DLIGHT_PARALLELPOINT) )
 110          return DDERR_INVALIDPARAMS;
 111
 112     if ( lpLight->dltType == D3DLIGHT_PARALLELPOINT )
 113          FIXME("D3DLIGHT_PARALLELPOINT no supported\n");
 114
 115     /* Translate D3DLIGH2 structure to D3DLIGHT7 */
 116     light7->dltType        = lpLight->dltType;
 117     light7->dcvDiffuse     = lpLight->dcvColor;
 118     if ((((LPD3DLIGHT2)lpLight)->dwFlags & D3DLIGHT_NO_SPECULAR) != 0)
 119       light7->dcvSpecular    = lpLight->dcvColor;
 120     else
 121       light7->dcvSpecular    = *(const D3DCOLORVALUE*)zero_value;
 122     light7->dcvAmbient     = lpLight->dcvColor;
 123     light7->dvPosition     = lpLight->dvPosition;
 124     light7->dvDirection    = lpLight->dvDirection;
 125     light7->dvRange        = lpLight->dvRange;
 126     light7->dvFalloff      = lpLight->dvFalloff;
 127     light7->dvAttenuation0 = lpLight->dvAttenuation0;
 128     light7->dvAttenuation1 = lpLight->dvAttenuation1;
 129     light7->dvAttenuation2 = lpLight->dvAttenuation2;
 130     light7->dvTheta        = lpLight->dvTheta;
 131     light7->dvPhi          = lpLight->dvPhi;
 132
 133     memcpy(&This->light, lpLight, lpLight->dwSize);
 134     if ((This->light.dwFlags & D3DLIGHT_ACTIVE) != 0) {
 135         This->update(This);
 136     }
 137     return DD_OK;
 138 }
 139
 140 HRESULT WINAPI
 141 Main_IDirect3DLightImpl_1_GetLight(LPDIRECT3DLIGHT iface,
 142                                    LPD3DLIGHT lpLight)
 143 {
 144     ICOM_THIS_FROM(IDirect3DLightImpl, IDirect3DLight, iface);
 145     TRACE("(%p/%p)->(%p)\n", This, iface, lpLight);
 146     if (TRACE_ON(ddraw)) {
 147         TRACE("  Returning light definition : \n");
 148         dump_light(&This->light);
 149     }
 150     memcpy(lpLight, &This->light, lpLight->dwSize);
 151     return DD_OK;
 152 }
 153
 154 /*******************************************************************************
 155  *                              Light static functions
 156  */
 157
 158 static void update(IDirect3DLightImpl* This) {
 159     IDirect3DDeviceImpl* device;
 160     if (!This->active_viewport||!This->active_viewport->active_device)
 161         return;
 162     device =  This->active_viewport->active_device;
 163     IDirect3DDevice7_SetLight(ICOM_INTERFACE(device,IDirect3DDevice7),This->dwLightIndex,&(This->light7));
 164 }
 165
 166 static void activate(IDirect3DLightImpl* This) {
 167     IDirect3DLightGLImpl *glThis = (IDirect3DLightGLImpl *) This;
 168
 169     TRACE("(%p)\n", This);
 170
 171     ENTER_GL();
 172     update(This);
 173     /* If was not active, activate it */
 174     if ((glThis->parent.light.dwFlags & D3DLIGHT_ACTIVE) == 0) {
 175         glEnable(glThis->light_num);
 176         glThis->parent.light.dwFlags |= D3DLIGHT_ACTIVE;
 177     }
 178     LEAVE_GL();
 179 }
 180
 181 static void desactivate(IDirect3DLightImpl* This) {
 182     IDirect3DLightGLImpl *glThis = (IDirect3DLightGLImpl *) This;
 183
 184     TRACE("(%p)\n", This);
 185
 186     ENTER_GL();
 187     /* If was not active, activate it */
 188     if ((glThis->parent.light.dwFlags & D3DLIGHT_ACTIVE) != 0) {
 189         glDisable(glThis->light_num);
 190         glThis->parent.light.dwFlags &= ~D3DLIGHT_ACTIVE;
 191     }
 192     LEAVE_GL();
 193 }
 194
 195 ULONG WINAPI
 196 GL_IDirect3DLightImpl_1_Release(LPDIRECT3DLIGHT iface)
 197 {
 198     ICOM_THIS_FROM(IDirect3DLightImpl, IDirect3DLight, iface);
 199     IDirect3DLightGLImpl *glThis = (IDirect3DLightGLImpl *) This;
 200     ULONG ref = InterlockedDecrement(&This->ref);
 201
 202     TRACE("(%p/%p)->() decrementing from %lu.\n", This, iface, ref + 1);
 203
 204     if (!ref) {
 205         ((IDirect3DGLImpl *) This->d3d->d3d_private)->light_released(This->d3d, glThis->light_num);
 206         HeapFree(GetProcessHeap(), 0, This);
 207         return 0;
 208     }
 209     return ref;
 210 }
 211
 212 #if !defined(__STRICT_ANSI__) && defined(__GNUC__)
 213 # define XCAST(fun)     (typeof(VTABLE_IDirect3DLight.fun))
 214 #else
 215 # define XCAST(fun)     (void*)
 216 #endif
 217
 218 IDirect3DLightVtbl VTABLE_IDirect3DLight =
 219 {
 220     XCAST(QueryInterface) Main_IDirect3DLightImpl_1_QueryInterface,
 221     XCAST(AddRef) Main_IDirect3DLightImpl_1_AddRef,
 222     XCAST(Release) GL_IDirect3DLightImpl_1_Release,
 223     XCAST(Initialize) Main_IDirect3DLightImpl_1_Initialize,
 224     XCAST(SetLight) Main_IDirect3DLightImpl_1_SetLight,
 225     XCAST(GetLight) Main_IDirect3DLightImpl_1_GetLight,
 226 };
 227
 228 #if !defined(__STRICT_ANSI__) && defined(__GNUC__)
 229 #undef XCAST
 230 #endif
 231
 232
 233
 234
 235 HRESULT d3dlight_create(IDirect3DLightImpl **obj, IDirectDrawImpl *d3d, GLenum light_num)
 236 {
 237     IDirect3DLightImpl *object;
 238     IDirect3DLightGLImpl *gl_object;
 239
 240     object = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IDirect3DLightGLImpl));
 241     if (object == NULL) return DDERR_OUTOFMEMORY;
 242     gl_object = (IDirect3DLightGLImpl *) object;
 243
 244     object->ref = 1;
 245     object->d3d = d3d;
 246     object->next = NULL;
 247     object->activate = activate;
 248     object->desactivate = desactivate;
 249     object->update = update;
 250     object->active_viewport = NULL;
 251     gl_object->light_num = light_num;
 252
 253     ICOM_INIT_INTERFACE(object, IDirect3DLight, VTABLE_IDirect3DLight);
 254
 255     *obj = object;
 256
 257     TRACE(" creating implementation at %p.\n", *obj);
 258
 259     return D3D_OK;
 260 }