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