git.oblomov.eu Git - wine/blob - dlls/wined3d/swapchain.c

   1 /*
   2  *IDirect3DSwapChain9 implementation
   3  *
   4  *Copyright 2002-2003 Jason Edmeades
   5  *Copyright 2002-2003 Raphael Junqueira
   6  *Copyright 2005 Oliver Stieber
   7  *
   8  *This library is free software; you can redistribute it and/or
   9  *modify it under the terms of the GNU Lesser General Public
  10  *License as published by the Free Software Foundation; either
  11  *version 2.1 of the License, or (at your option) any later version.
  12  *
  13  *This library is distributed in the hope that it will be useful,
  14  *but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  *MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  *Lesser General Public License for more details.
  17  *
  18  *You should have received a copy of the GNU Lesser General Public
  19  *License along with this library; if not, write to the Free Software
  20  *Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  21  */
  22
  23 #include "config.h"
  24 #include "wined3d_private.h"
  25
  26
  27 /*TODO: some of the additional parameters may be required to
  28     set the gamma ramp (for some weird reason microsoft have left swap gammaramp in device
  29     but it operates on a swapchain, it may be a good idea to move it to IWineD3DSwapChain for IWineD3D)*/
  30
  31
  32 WINE_DEFAULT_DEBUG_CHANNEL(d3d);
  33 WINE_DECLARE_DEBUG_CHANNEL(fps);
  34
  35 #define GLINFO_LOCATION This->wineD3DDevice->adapter->gl_info
  36
  37 /* IDirect3DSwapChain IUnknown parts follow: */
  38 static ULONG WINAPI IWineD3DSwapChainImpl_AddRef(IWineD3DSwapChain *iface) {
  39     IWineD3DSwapChainImpl *This = (IWineD3DSwapChainImpl *)iface;
  40     DWORD refCount = InterlockedIncrement(&This->ref);
  41     TRACE("(%p) : AddRef increasing from %d\n", This, refCount - 1);
  42     return refCount;
  43 }
  44
  45 static HRESULT WINAPI IWineD3DSwapChainImpl_QueryInterface(IWineD3DSwapChain *iface, REFIID riid, LPVOID *ppobj)
  46 {
  47     IWineD3DSwapChainImpl *This = (IWineD3DSwapChainImpl *)iface;
  48     TRACE("(%p)->(%s,%p)\n", This, debugstr_guid(riid), ppobj);
  49     if (IsEqualGUID(riid, &IID_IUnknown)
  50         || IsEqualGUID(riid, &IID_IWineD3DBase)
  51         || IsEqualGUID(riid, &IID_IWineD3DSwapChain)){
  52         IWineD3DSwapChainImpl_AddRef(iface);
  53         if(ppobj == NULL){
  54             ERR("Query interface called but now data allocated\n");
  55             return E_NOINTERFACE;
  56         }
  57         *ppobj = This;
  58         return WINED3D_OK;
  59     }
  60     *ppobj = NULL;
  61     return E_NOINTERFACE;
  62 }
  63
  64
  65 static ULONG WINAPI IWineD3DSwapChainImpl_Release(IWineD3DSwapChain *iface) {
  66     IWineD3DSwapChainImpl *This = (IWineD3DSwapChainImpl *)iface;
  67     DWORD refCount;
  68     refCount = InterlockedDecrement(&This->ref);
  69     TRACE("(%p) : ReleaseRef to %d\n", This, refCount);
  70     if (refCount == 0) {
  71         IWineD3DSwapChain_Destroy(iface, D3DCB_DefaultDestroySurface);
  72     }
  73     return refCount;
  74 }
  75
  76 static HRESULT WINAPI IWineD3DSwapChainImpl_GetParent(IWineD3DSwapChain *iface, IUnknown ** ppParent){
  77     IWineD3DSwapChainImpl *This = (IWineD3DSwapChainImpl *)iface;
  78     *ppParent = This->parent;
  79     IUnknown_AddRef(*ppParent);
  80     TRACE("(%p) returning %p\n", This , *ppParent);
  81     return WINED3D_OK;
  82 }
  83
  84 /*IWineD3DSwapChain parts follow: */
  85 static void WINAPI IWineD3DSwapChainImpl_Destroy(IWineD3DSwapChain *iface, D3DCB_DESTROYSURFACEFN D3DCB_DestroyRenderTarget) {
  86     IWineD3DSwapChainImpl *This = (IWineD3DSwapChainImpl *)iface;
  87     WINED3DDISPLAYMODE mode;
  88     int i;
  89
  90     /* release the ref to the front and back buffer parents */
  91     if(This->frontBuffer) {
  92         IWineD3DSurface_SetContainer(This->frontBuffer, 0);
  93         if(D3DCB_DestroyRenderTarget(This->frontBuffer) > 0) {
  94             FIXME("(%p) Something's still holding the front buffer\n",This);
  95         }
  96     }
  97
  98     if(This->backBuffer) {
  99         int i;
 100         for(i = 0; i < This->presentParms.BackBufferCount; i++) {
 101             IWineD3DSurface_SetContainer(This->backBuffer[i], 0);
 102             if(D3DCB_DestroyRenderTarget(This->backBuffer[i]) > 0) {
 103                 FIXME("(%p) Something's still holding the back buffer\n",This);
 104             }
 105         }
 106     }
 107
 108     /* Restore the screen resolution if we rendered in fullscreen
 109      * This will restore the screen resolution to what it was before creating the swapchain. In case of d3d8 and d3d9
 110      * this will be the original desktop resolution. In case of d3d7 this will be a NOP because ddraw sets the resolution
 111      * before starting up Direct3D, thus orig_width and orig_height will be equal to the modes in the presentation params
 112      */
 113     if(This->presentParms.Windowed == FALSE) {
 114         mode.Width = This->orig_width;
 115         mode.Height = This->orig_height;
 116         mode.RefreshRate = 0;
 117         mode.Format = This->orig_fmt;
 118         IWineD3DDevice_SetDisplayMode((IWineD3DDevice *) This->wineD3DDevice, 0, &mode);
 119     }
 120     for(i = 0; i < This->num_contexts; i++) {
 121         DestroyContext(This->wineD3DDevice, This->context[i]);
 122     }
 123     HeapFree(GetProcessHeap(), 0, This->context);
 124
 125     HeapFree(GetProcessHeap(), 0, This);
 126 }
 127
 128 static HRESULT WINAPI IWineD3DSwapChainImpl_Present(IWineD3DSwapChain *iface, CONST RECT *pSourceRect, CONST RECT *pDestRect, HWND hDestWindowOverride, CONST RGNDATA *pDirtyRegion, DWORD dwFlags) {
 129     IWineD3DSwapChainImpl *This = (IWineD3DSwapChainImpl *)iface;
 130     unsigned int sync;
 131     int retval;
 132
 133
 134     ActivateContext(This->wineD3DDevice, This->backBuffer[0], CTXUSAGE_RESOURCELOAD);
 135     ENTER_GL();
 136
 137     /* Render the cursor onto the back buffer, using our nifty directdraw blitting code :-) */
 138     if(This->wineD3DDevice->bCursorVisible && This->wineD3DDevice->cursorTexture) {
 139         IWineD3DSurfaceImpl cursor;
 140         RECT destRect = {This->wineD3DDevice->xScreenSpace - This->wineD3DDevice->xHotSpot,
 141                          This->wineD3DDevice->yScreenSpace - This->wineD3DDevice->yHotSpot,
 142                          This->wineD3DDevice->xScreenSpace + This->wineD3DDevice->cursorWidth - This->wineD3DDevice->xHotSpot,
 143                          This->wineD3DDevice->yScreenSpace + This->wineD3DDevice->cursorHeight - This->wineD3DDevice->yHotSpot};
 144         TRACE("Rendering the cursor. Creating fake surface at %p\n", &cursor);
 145         /* Build a fake surface to call the Blitting code. It is not possible to use the interface passed by
 146          * the application because we are only supposed to copy the information out. Using a fake surface
 147          * allows to use the Blitting engine and avoid copying the whole texture -> render target blitting code.
 148          */
 149         memset(&cursor, 0, sizeof(cursor));
 150         cursor.lpVtbl = &IWineD3DSurface_Vtbl;
 151         cursor.resource.ref = 1;
 152         cursor.resource.wineD3DDevice = This->wineD3DDevice;
 153         cursor.resource.pool = WINED3DPOOL_SCRATCH;
 154         cursor.resource.format = WINED3DFMT_A8R8G8B8;
 155         cursor.resource.resourceType = WINED3DRTYPE_SURFACE;
 156         cursor.glDescription.textureName = This->wineD3DDevice->cursorTexture;
 157         cursor.glDescription.target = GL_TEXTURE_2D;
 158         cursor.glDescription.level = 0;
 159         cursor.currentDesc.Width = This->wineD3DDevice->cursorWidth;
 160         cursor.currentDesc.Height = This->wineD3DDevice->cursorHeight;
 161         cursor.glRect.left = 0;
 162         cursor.glRect.top = 0;
 163         cursor.glRect.right = cursor.currentDesc.Width;
 164         cursor.glRect.bottom = cursor.currentDesc.Height;
 165         /* The cursor must have pow2 sizes */
 166         cursor.pow2Width = cursor.currentDesc.Width;
 167         cursor.pow2Height = cursor.currentDesc.Height;
 168         /* The surface is in the texture */
 169         cursor.Flags |= SFLAG_INTEXTURE;
 170         /* DDBLT_KEYSRC will cause BltOverride to enable the alpha test with GL_NOTEQUAL, 0.0,
 171          * which is exactly what we want :-)
 172          */
 173         if (This->presentParms.Windowed) {
 174             MapWindowPoints(NULL, This->win_handle, (LPPOINT)&destRect, 2);
 175         }
 176         IWineD3DSurface_Blt(This->backBuffer[0], &destRect, (IWineD3DSurface *) &cursor, NULL, WINEDDBLT_KEYSRC, NULL, WINED3DTEXF_NONE);
 177     }
 178
 179     if (pSourceRect || pDestRect) FIXME("Unhandled present options %p/%p\n", pSourceRect, pDestRect);
 180     /* TODO: If only source rect or dest rect are supplied then clip the window to match */
 181     TRACE("preseting HDC %p\n", This->context[0]->hdc);
 182
 183     /* Don't call checkGLcall, as glGetError is not applicable here */
 184     if (hDestWindowOverride && This->win_handle != hDestWindowOverride) {
 185         WINED3DLOCKED_RECT r;
 186         BYTE *mem;
 187
 188         TRACE("Performing dest override of swapchain %p from window %p to %p\n", This, This->win_handle, hDestWindowOverride);
 189         if(This->context[0] == This->wineD3DDevice->contexts[0]) {
 190             /* The primary context 'owns' all the opengl resources. Destroying and recreating that context would require downloading
 191              * all opengl resources, deleting the gl resources, destroying all other contexts, then recreating all other contexts
 192              * and reload the resources
 193              */
 194             ERR("Cannot change the destination window of the owner of the primary context\n");
 195         } else {
 196             This->win_handle             = hDestWindowOverride;
 197
 198             /* The old back buffer has to be copied over to the new back buffer. A lockrect - switchcontext - unlockrect
 199              * would suffice in theory, but it is rather nasty and may cause troubles with future changes of the locking code
 200              * So lock read only, copy the surface out, then lock with the discard flag and write back
 201              */
 202             IWineD3DSurface_LockRect(This->backBuffer[0], &r, NULL, WINED3DLOCK_READONLY);
 203             mem = HeapAlloc(GetProcessHeap(), 0, r.Pitch * ((IWineD3DSurfaceImpl *) This->backBuffer[0])->currentDesc.Height);
 204             memcpy(mem, r.pBits, r.Pitch * ((IWineD3DSurfaceImpl *) This->backBuffer[0])->currentDesc.Height);
 205             IWineD3DSurface_UnlockRect(This->backBuffer[0]);
 206
 207             DestroyContext(This->wineD3DDevice, This->context[0]);
 208             This->context[0] = CreateContext(This->wineD3DDevice, (IWineD3DSurfaceImpl *) This->frontBuffer, This->win_handle, FALSE /* pbuffer */, &This->presentParms);
 209
 210             IWineD3DSurface_LockRect(This->backBuffer[0], &r, NULL, WINED3DLOCK_DISCARD);
 211             memcpy(r.pBits, mem, r.Pitch * ((IWineD3DSurfaceImpl *) This->backBuffer[0])->currentDesc.Height);
 212             HeapFree(GetProcessHeap(), 0, mem);
 213             IWineD3DSurface_UnlockRect(This->backBuffer[0]);
 214         }
 215     }
 216
 217     SwapBuffers(This->context[0]->hdc); /* TODO: cycle through the swapchain buffers */
 218
 219     TRACE("SwapBuffers called, Starting new frame\n");
 220     /* FPS support */
 221     if (TRACE_ON(fps))
 222     {
 223         DWORD time = GetTickCount();
 224         This->frames++;
 225         /* every 1.5 seconds */
 226         if (time - This->prev_time > 1500) {
 227             TRACE_(fps)("%p @ approx %.2ffps\n", This, 1000.0*This->frames/(time - This->prev_time));
 228             This->prev_time = time;
 229             This->frames = 0;
 230         }
 231     }
 232
 233 #if defined(FRAME_DEBUGGING)
 234 {
 235     if (GetFileAttributesA("C:\\D3DTRACE") != INVALID_FILE_ATTRIBUTES) {
 236         if (!isOn) {
 237             isOn = TRUE;
 238             FIXME("Enabling D3D Trace\n");
 239             __WINE_SET_DEBUGGING(__WINE_DBCL_TRACE, __wine_dbch_d3d, 1);
 240 #if defined(SHOW_FRAME_MAKEUP)
 241             FIXME("Singe Frame snapshots Starting\n");
 242             isDumpingFrames = TRUE;
 243             glClear(GL_COLOR_BUFFER_BIT);
 244 #endif
 245
 246 #if defined(SINGLE_FRAME_DEBUGGING)
 247         } else {
 248 #if defined(SHOW_FRAME_MAKEUP)
 249             FIXME("Singe Frame snapshots Finishing\n");
 250             isDumpingFrames = FALSE;
 251 #endif
 252             FIXME("Singe Frame trace complete\n");
 253             DeleteFileA("C:\\D3DTRACE");
 254             __WINE_SET_DEBUGGING(__WINE_DBCL_TRACE, __wine_dbch_d3d, 0);
 255 #endif
 256         }
 257     } else {
 258         if (isOn) {
 259             isOn = FALSE;
 260 #if defined(SHOW_FRAME_MAKEUP)
 261             FIXME("Single Frame snapshots Finishing\n");
 262             isDumpingFrames = FALSE;
 263 #endif
 264             FIXME("Disabling D3D Trace\n");
 265             __WINE_SET_DEBUGGING(__WINE_DBCL_TRACE, __wine_dbch_d3d, 0);
 266         }
 267     }
 268 }
 269 #endif
 270
 271     LEAVE_GL();
 272
 273     if (This->presentParms.SwapEffect == WINED3DSWAPEFFECT_DISCARD) {
 274         TRACE("Clearing the color buffer with pink color\n");
 275
 276         IWineD3DDevice_Clear((IWineD3DDevice*)This->wineD3DDevice, 0, NULL,
 277                               WINED3DCLEAR_TARGET, 0xff00ffff, 1.0, 0);
 278     }
 279
 280     if(((IWineD3DSurfaceImpl *) This->frontBuffer)->Flags   & SFLAG_INSYSMEM ||
 281        ((IWineD3DSurfaceImpl *) This->backBuffer[0])->Flags & SFLAG_INSYSMEM ) {
 282         /* Both memory copies of the surfaces are ok, flip them around too instead of dirtifying */
 283         IWineD3DSurfaceImpl *front = (IWineD3DSurfaceImpl *) This->frontBuffer;
 284         IWineD3DSurfaceImpl *back = (IWineD3DSurfaceImpl *) This->backBuffer[0];
 285         BOOL frontuptodate = front->Flags & SFLAG_INSYSMEM;
 286         BOOL backuptodate = back->Flags & SFLAG_INSYSMEM;
 287
 288         if(front->resource.size == back->resource.size) {
 289             /* Flip the DC */
 290             {
 291                 HDC tmp;
 292                 tmp = front->hDC;
 293                 front->hDC = back->hDC;
 294                 back->hDC = tmp;
 295             }
 296
 297             /* Flip the DIBsection */
 298             {
 299                 HBITMAP tmp;
 300                 BOOL hasDib = front->Flags & SFLAG_DIBSECTION;
 301                 tmp = front->dib.DIBsection;
 302                 front->dib.DIBsection = back->dib.DIBsection;
 303                 back->dib.DIBsection = tmp;
 304
 305                 if(back->Flags & SFLAG_DIBSECTION) front->Flags |= SFLAG_DIBSECTION;
 306                 else front->Flags &= ~SFLAG_DIBSECTION;
 307                 if(hasDib) back->Flags |= SFLAG_DIBSECTION;
 308                 else back->Flags &= ~SFLAG_DIBSECTION;
 309             }
 310
 311             /* Flip the surface data */
 312             {
 313                 void* tmp;
 314
 315                 tmp = front->dib.bitmap_data;
 316                 front->dib.bitmap_data = back->dib.bitmap_data;
 317                 back->dib.bitmap_data = tmp;
 318
 319                 tmp = front->resource.allocatedMemory;
 320                 front->resource.allocatedMemory = back->resource.allocatedMemory;
 321                 back->resource.allocatedMemory = tmp;
 322             }
 323
 324             /* client_memory should not be different, but just in case */
 325             {
 326                 BOOL tmp;
 327                 tmp = front->dib.client_memory;
 328                 front->dib.client_memory = back->dib.client_memory;
 329                 back->dib.client_memory = tmp;
 330             }
 331             if(frontuptodate) back->Flags |= SFLAG_INSYSMEM;
 332             else back->Flags &= ~SFLAG_INSYSMEM;
 333             if(backuptodate) front->Flags |= SFLAG_INSYSMEM;
 334             else front->Flags &= ~SFLAG_INSYSMEM;
 335         } else {
 336             back->Flags &= ~SFLAG_INSYSMEM;
 337             front->Flags &= ~SFLAG_INSYSMEM;
 338         }
 339     }
 340
 341     if(This->presentParms.PresentationInterval != WINED3DPRESENT_INTERVAL_IMMEDIATE && GL_SUPPORT(SGI_VIDEO_SYNC)) {
 342         retval = GL_EXTCALL(glXGetVideoSyncSGI(&sync));
 343         if(retval != 0) {
 344             ERR("glXGetVideoSyncSGI failed(retval = %d\n", retval);
 345         }
 346
 347         switch(This->presentParms.PresentationInterval) {
 348             case WINED3DPRESENT_INTERVAL_DEFAULT:
 349             case WINED3DPRESENT_INTERVAL_ONE:
 350                 if(sync <= This->vSyncCounter) {
 351                     retval = GL_EXTCALL(glXWaitVideoSyncSGI(1, 0, &This->vSyncCounter));
 352                 } else {
 353                     This->vSyncCounter = sync;
 354                 }
 355                 break;
 356             case WINED3DPRESENT_INTERVAL_TWO:
 357                 if(sync <= This->vSyncCounter + 1) {
 358                     retval = GL_EXTCALL(glXWaitVideoSyncSGI(2, This->vSyncCounter & 0x1, &This->vSyncCounter));
 359                 } else {
 360                     This->vSyncCounter = sync;
 361                 }
 362                 break;
 363             case WINED3DPRESENT_INTERVAL_THREE:
 364                 if(sync <= This->vSyncCounter + 2) {
 365                     retval = GL_EXTCALL(glXWaitVideoSyncSGI(3, This->vSyncCounter % 0x3, &This->vSyncCounter));
 366                 } else {
 367                     This->vSyncCounter = sync;
 368                 }
 369                 break;
 370             case WINED3DPRESENT_INTERVAL_FOUR:
 371                 if(sync <= This->vSyncCounter + 3) {
 372                     retval = GL_EXTCALL(glXWaitVideoSyncSGI(4, This->vSyncCounter & 0x3, &This->vSyncCounter));
 373                 } else {
 374                     This->vSyncCounter = sync;
 375                 }
 376                 break;
 377             default:
 378                 FIXME("Unknown presentation interval %08x\n", This->presentParms.PresentationInterval);
 379         }
 380     }
 381
 382     TRACE("returning\n");
 383     return WINED3D_OK;
 384 }
 385
 386 static HRESULT WINAPI IWineD3DSwapChainImpl_GetFrontBufferData(IWineD3DSwapChain *iface, IWineD3DSurface *pDestSurface) {
 387     IWineD3DSwapChainImpl *This = (IWineD3DSwapChainImpl *)iface;
 388     POINT start;
 389
 390     TRACE("(%p) : iface(%p) pDestSurface(%p)\n", This, iface, pDestSurface);
 391
 392     start.x = 0;
 393     start.y = 0;
 394
 395     if (This->presentParms.Windowed) {
 396         MapWindowPoints(This->win_handle, NULL, &start, 1);
 397     }
 398
 399     IWineD3DSurface_BltFast(pDestSurface, start.x, start.y, This->frontBuffer, NULL, 0);
 400     return WINED3D_OK;
 401 }
 402
 403 static HRESULT WINAPI IWineD3DSwapChainImpl_GetBackBuffer(IWineD3DSwapChain *iface, UINT iBackBuffer, WINED3DBACKBUFFER_TYPE Type, IWineD3DSurface **ppBackBuffer) {
 404
 405     IWineD3DSwapChainImpl *This = (IWineD3DSwapChainImpl *)iface;
 406
 407     if (iBackBuffer > This->presentParms.BackBufferCount - 1) {
 408         TRACE("Back buffer count out of range\n");
 409         /* Native d3d9 doesn't set NULL here, just as wine's d3d9. But set it here
 410          * in wined3d to avoid problems in other libs
 411          */
 412         *ppBackBuffer = NULL;
 413         return WINED3DERR_INVALIDCALL;
 414     }
 415
 416     *ppBackBuffer = This->backBuffer[iBackBuffer];
 417     TRACE("(%p) : BackBuf %d Type %d  returning %p\n", This, iBackBuffer, Type, *ppBackBuffer);
 418
 419     /* Note inc ref on returned surface */
 420     if(*ppBackBuffer) IWineD3DSurface_AddRef(*ppBackBuffer);
 421     return WINED3D_OK;
 422
 423 }
 424
 425 static HRESULT WINAPI IWineD3DSwapChainImpl_GetRasterStatus(IWineD3DSwapChain *iface, WINED3DRASTER_STATUS *pRasterStatus) {
 426     IWineD3DSwapChainImpl *This = (IWineD3DSwapChainImpl *)iface;
 427     static BOOL showFixmes = TRUE;
 428     pRasterStatus->InVBlank = TRUE;
 429     pRasterStatus->ScanLine = 0;
 430     /* No openGL equivalent */
 431     if(showFixmes) {
 432         FIXME("(%p) : stub (once)\n", This);
 433         showFixmes = FALSE;
 434     }
 435     return WINED3D_OK;
 436 }
 437
 438 static HRESULT WINAPI IWineD3DSwapChainImpl_GetDisplayMode(IWineD3DSwapChain *iface, WINED3DDISPLAYMODE*pMode) {
 439     IWineD3DSwapChainImpl *This = (IWineD3DSwapChainImpl *)iface;
 440     HDC                 hdc;
 441     int                 bpp = 0;
 442
 443     pMode->Width        = GetSystemMetrics(SM_CXSCREEN);
 444     pMode->Height       = GetSystemMetrics(SM_CYSCREEN);
 445     pMode->RefreshRate  = 85; /* FIXME: How to identify? */
 446
 447     hdc = GetDC(0);
 448     bpp = GetDeviceCaps(hdc, BITSPIXEL);
 449     ReleaseDC(0, hdc);
 450
 451     switch (bpp) {
 452     case  8: pMode->Format       = WINED3DFMT_R8G8B8; break;
 453     case 16: pMode->Format       = WINED3DFMT_R5G6B5; break;
 454     case 24: /*pMode->Format       = WINED3DFMT_R8G8B8; break; */ /* 32bpp and 24bpp can be aliased for X */
 455     case 32: pMode->Format       = WINED3DFMT_A8R8G8B8; break;
 456     default:
 457        FIXME("Unrecognized display mode format\n");
 458        pMode->Format       = WINED3DFMT_UNKNOWN;
 459     }
 460
 461     TRACE("(%p) : returning w(%d) h(%d) rr(%d) fmt(%u,%s)\n", This, pMode->Width, pMode->Height, pMode->RefreshRate,
 462     pMode->Format, debug_d3dformat(pMode->Format));
 463     return WINED3D_OK;
 464 }
 465
 466 static HRESULT WINAPI IWineD3DSwapChainImpl_GetDevice(IWineD3DSwapChain *iface, IWineD3DDevice**ppDevice) {
 467     IWineD3DSwapChainImpl *This = (IWineD3DSwapChainImpl *)iface;
 468
 469     *ppDevice = (IWineD3DDevice *) This->wineD3DDevice;
 470
 471     /* Note  Calling this method will increase the internal reference count
 472        on the IDirect3DDevice9 interface. */
 473     IWineD3DDevice_AddRef(*ppDevice);
 474     TRACE("(%p) : returning %p\n", This, *ppDevice);
 475     return WINED3D_OK;
 476 }
 477
 478 static HRESULT WINAPI IWineD3DSwapChainImpl_GetPresentParameters(IWineD3DSwapChain *iface, WINED3DPRESENT_PARAMETERS *pPresentationParameters) {
 479     IWineD3DSwapChainImpl *This = (IWineD3DSwapChainImpl *)iface;
 480     TRACE("(%p)\n", This);
 481
 482     *pPresentationParameters = This->presentParms;
 483
 484     return WINED3D_OK;
 485 }
 486
 487 static HRESULT WINAPI IWineD3DSwapChainImpl_SetGammaRamp(IWineD3DSwapChain *iface, DWORD Flags, CONST WINED3DGAMMARAMP *pRamp){
 488
 489     IWineD3DSwapChainImpl *This = (IWineD3DSwapChainImpl *)iface;
 490     HDC hDC;
 491     TRACE("(%p) : pRamp@%p flags(%d)\n", This, pRamp, Flags);
 492     hDC = GetDC(This->win_handle);
 493     SetDeviceGammaRamp(hDC, (LPVOID)pRamp);
 494     ReleaseDC(This->win_handle, hDC);
 495     return WINED3D_OK;
 496
 497 }
 498
 499 static HRESULT WINAPI IWineD3DSwapChainImpl_GetGammaRamp(IWineD3DSwapChain *iface, WINED3DGAMMARAMP *pRamp){
 500
 501     IWineD3DSwapChainImpl *This = (IWineD3DSwapChainImpl *)iface;
 502     HDC hDC;
 503     TRACE("(%p) : pRamp@%p\n", This, pRamp);
 504     hDC = GetDC(This->win_handle);
 505     GetDeviceGammaRamp(hDC, pRamp);
 506     ReleaseDC(This->win_handle, hDC);
 507     return WINED3D_OK;
 508
 509 }
 510
 511
 512 const IWineD3DSwapChainVtbl IWineD3DSwapChain_Vtbl =
 513 {
 514     /* IUnknown */
 515     IWineD3DSwapChainImpl_QueryInterface,
 516     IWineD3DSwapChainImpl_AddRef,
 517     IWineD3DSwapChainImpl_Release,
 518     /* IWineD3DSwapChain */
 519     IWineD3DSwapChainImpl_GetParent,
 520     IWineD3DSwapChainImpl_Destroy,
 521     IWineD3DSwapChainImpl_GetDevice,
 522     IWineD3DSwapChainImpl_Present,
 523     IWineD3DSwapChainImpl_GetFrontBufferData,
 524     IWineD3DSwapChainImpl_GetBackBuffer,
 525     IWineD3DSwapChainImpl_GetRasterStatus,
 526     IWineD3DSwapChainImpl_GetDisplayMode,
 527     IWineD3DSwapChainImpl_GetPresentParameters,
 528     IWineD3DSwapChainImpl_SetGammaRamp,
 529     IWineD3DSwapChainImpl_GetGammaRamp
 530 };
 531
 532 WineD3DContext *IWineD3DSwapChainImpl_CreateContextForThread(IWineD3DSwapChain *iface) {
 533     WineD3DContext *ctx;
 534     IWineD3DSwapChainImpl *This = (IWineD3DSwapChainImpl *) iface;
 535     WineD3DContext **newArray;
 536
 537     TRACE("Creating a new context for swapchain %p, thread %d\n", This, GetCurrentThreadId());
 538
 539     ctx = CreateContext(This->wineD3DDevice, (IWineD3DSurfaceImpl *) This->frontBuffer,
 540                         This->context[0]->win_handle, FALSE /* pbuffer */, &This->presentParms);
 541     if(!ctx) {
 542         ERR("Failed to create a new context for the swapchain\n");
 543         return NULL;
 544     }
 545
 546     newArray = HeapAlloc(GetProcessHeap(), 0, sizeof(*newArray) * This->num_contexts + 1);
 547     if(!newArray) {
 548         ERR("Out of memory when trying to allocate a new context array\n");
 549         DestroyContext(This->wineD3DDevice, ctx);
 550         return NULL;
 551     }
 552     memcpy(newArray, This->context, sizeof(*newArray) * This->num_contexts);
 553     HeapFree(GetProcessHeap(), 0, This->context);
 554     newArray[This->num_contexts] = ctx;
 555     This->context = newArray;
 556     This->num_contexts++;
 557
 558     TRACE("Returning context %p\n", ctx);
 559     return ctx;
 560 }