dlls/ddraw/gamma.c

   1 /* DirectDrawGammaControl implementation
   2  *
   3  * Copyright 2001 TransGaming Technologies Inc.
   4  * Copyright 2006 Stefan Dösinger
   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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #include "config.h"
  22 #include "wine/port.h"
  23 #include "wine/debug.h"
  24
  25 #include <assert.h>
  26 #include <stdarg.h>
  27 #include <string.h>
  28 #include <stdlib.h>
  29
  30 #define COBJMACROS
  31
  32 #include "windef.h"
  33 #include "winbase.h"
  34 #include "winerror.h"
  35 #include "wingdi.h"
  36 #include "wine/exception.h"
  37
  38 #include "ddraw.h"
  39 #include "d3d.h"
  40
  41 #include "ddraw_private.h"
  42
  43 WINE_DEFAULT_DEBUG_CHANNEL(ddraw);
  44 WINE_DECLARE_DEBUG_CHANNEL(ddraw_thunk);
  45
  46 static inline IDirectDrawSurfaceImpl *surface_from_gamma_control(IDirectDrawGammaControl *iface)
  47 {
  48     return (IDirectDrawSurfaceImpl *)((char*)iface
  49             - FIELD_OFFSET(IDirectDrawSurfaceImpl, IDirectDrawGammaControl_vtbl));
  50 }
  51
  52 /**********************************************************
  53  * IUnknown parts follow
  54  **********************************************************/
  55
  56 /**********************************************************
  57  * IDirectDrawGammaControl::QueryInterface
  58  *
  59  * QueryInterface, thunks to IDirectDrawSurface
  60  *
  61  * Params:
  62  *  riid: Interface id queried for
  63  *  obj: Returns the interface pointer
  64  *
  65  * Returns:
  66  *  S_OK or E_NOINTERFACE: See IDirectDrawSurface7::QueryInterface
  67  *
  68  **********************************************************/
  69 static HRESULT WINAPI
  70 IDirectDrawGammaControlImpl_QueryInterface(IDirectDrawGammaControl *iface, REFIID riid,
  71                                            void **obj)
  72 {
  73     IDirectDrawSurfaceImpl *This = surface_from_gamma_control(iface);
  74     TRACE_(ddraw_thunk)("(%p)->(%s,%p): Thunking to IDirectDrawSurface7\n", This, debugstr_guid(riid), obj);
  75
  76     return IDirectDrawSurface7_QueryInterface((IDirectDrawSurface7 *)This, riid, obj);
  77 }
  78
  79 /**********************************************************
  80  * IDirectDrawGammaControl::AddRef
  81  *
  82  * Addref, thunks to IDirectDrawSurface
  83  *
  84  * Returns:
  85  *  The new refcount
  86  *
  87  **********************************************************/
  88 static ULONG WINAPI
  89 IDirectDrawGammaControlImpl_AddRef(IDirectDrawGammaControl *iface)
  90 {
  91     IDirectDrawSurfaceImpl *This = surface_from_gamma_control(iface);
  92     TRACE_(ddraw_thunk)("(%p)->() Thunking to IDirectDrawSurface7\n", This);
  93
  94     return IDirectDrawSurface7_AddRef((IDirectDrawSurface7 *)This);
  95 }
  96
  97 /**********************************************************
  98  * IDirectDrawGammaControl::Release
  99  *
 100  * Release, thunks to IDirectDrawSurface
 101  *
 102  * Returns:
 103  *  The new refcount
 104  *
 105  **********************************************************/
 106 static ULONG WINAPI
 107 IDirectDrawGammaControlImpl_Release(IDirectDrawGammaControl *iface)
 108 {
 109     IDirectDrawSurfaceImpl *This = surface_from_gamma_control(iface);
 110     TRACE_(ddraw_thunk)("(%p)->() Thunking to IDirectDrawSurface7\n", This);
 111
 112     return IDirectDrawSurface7_Release((IDirectDrawSurface7 *)This);
 113 }
 114
 115 /**********************************************************
 116  * IDirectDrawGammaControl
 117  **********************************************************/
 118
 119 /**********************************************************
 120  * IDirectDrawGammaControl::GetGammaRamp
 121  *
 122  * Returns the current gamma ramp for a surface
 123  *
 124  * Params:
 125  *  Flags: Ignored
 126  *  GammaRamp: Address to write the ramp to
 127  *
 128  * Returns:
 129  *  DD_OK on success
 130  *  DDERR_INVALIDPARAMS if GammaRamp is NULL
 131  *
 132  **********************************************************/
 133 static HRESULT WINAPI
 134 IDirectDrawGammaControlImpl_GetGammaRamp(IDirectDrawGammaControl *iface,
 135                                          DWORD Flags,
 136                                          DDGAMMARAMP *GammaRamp)
 137 {
 138     IDirectDrawSurfaceImpl *This = surface_from_gamma_control(iface);
 139     TRACE("(%p)->(%08x,%p)\n", This,Flags,GammaRamp);
 140
 141     /* This looks sane */
 142     if(!GammaRamp)
 143     {
 144         ERR("(%p) GammaRamp is NULL, returning DDERR_INVALIDPARAMS\n", This);
 145         return DDERR_INVALIDPARAMS;
 146     }
 147
 148     EnterCriticalSection(&ddraw_cs);
 149     if(This->surface_desc.ddsCaps.dwCaps & DDSCAPS_PRIMARYSURFACE)
 150     {
 151         /* Note: DDGAMMARAMP is compatible with WINED3DGAMMARAMP */
 152         IWineD3DDevice_GetGammaRamp(This->ddraw->wineD3DDevice,
 153                                     0 /* Swapchain */,
 154                                     (WINED3DGAMMARAMP *) GammaRamp);
 155     }
 156     else
 157     {
 158         ERR("(%p) Unimplemented for non-primary surfaces\n", This);
 159     }
 160     LeaveCriticalSection(&ddraw_cs);
 161
 162     return DD_OK;
 163 }
 164
 165 /**********************************************************
 166  * IDirectDrawGammaControl::SetGammaRamp
 167  *
 168  * Sets the red, green and blue gamma ramps for
 169  *
 170  * Params:
 171  *  Flags: Can be DDSGR_CALIBRATE to request calibration
 172  *  GammaRamp: Structure containing the new gamma ramp
 173  *
 174  * Returns:
 175  *  DD_OK on success
 176  *  DDERR_INVALIDPARAMS if GammaRamp is NULL
 177  *
 178  **********************************************************/
 179 static HRESULT WINAPI
 180 IDirectDrawGammaControlImpl_SetGammaRamp(IDirectDrawGammaControl *iface,
 181                                          DWORD Flags,
 182                                          DDGAMMARAMP *GammaRamp)
 183 {
 184     IDirectDrawSurfaceImpl *This = surface_from_gamma_control(iface);
 185     TRACE("(%p)->(%08x,%p)\n", This,Flags,GammaRamp);
 186
 187     /* This looks sane */
 188     if(!GammaRamp)
 189     {
 190         ERR("(%p) GammaRamp is NULL, returning DDERR_INVALIDPARAMS\n", This);
 191         return DDERR_INVALIDPARAMS;
 192     }
 193
 194     EnterCriticalSection(&ddraw_cs);
 195     if(This->surface_desc.ddsCaps.dwCaps & DDSCAPS_PRIMARYSURFACE)
 196     {
 197
 198         /* Note: DDGAMMARAMP is compatible with WINED3DGAMMARAMP */
 199         IWineD3DDevice_SetGammaRamp(This->ddraw->wineD3DDevice,
 200                                     0 /* Swapchain */,
 201                                     Flags,
 202                                     (WINED3DGAMMARAMP *) GammaRamp);
 203     }
 204     else
 205     {
 206         ERR("(%p) Unimplemented for non-primary surfaces\n", This);
 207     }
 208     LeaveCriticalSection(&ddraw_cs);
 209
 210     return DD_OK;
 211 }
 212
 213 const IDirectDrawGammaControlVtbl IDirectDrawGammaControl_Vtbl =
 214 {
 215     IDirectDrawGammaControlImpl_QueryInterface,
 216     IDirectDrawGammaControlImpl_AddRef,
 217     IDirectDrawGammaControlImpl_Release,
 218     IDirectDrawGammaControlImpl_GetGammaRamp,
 219     IDirectDrawGammaControlImpl_SetGammaRamp
 220 };