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  *Copyright 2007-2008 Stefan Dösinger for CodeWeavers
   8  *
   9  *This library is free software; you can redistribute it and/or
  10  *modify it under the terms of the GNU Lesser General Public
  11  *License as published by the Free Software Foundation; either
  12  *version 2.1 of the License, or (at your option) any later version.
  13  *
  14  *This library is distributed in the hope that it will be useful,
  15  *but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  *MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  17  *Lesser General Public License for more details.
  18  *
  19  *You should have received a copy of the GNU Lesser General Public
  20  *License along with this library; if not, write to the Free Software
  21  *Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  22  */
  23
  24 #include "config.h"
  25 #include "wined3d_private.h"
  26
  27
  28 /*TODO: some of the additional parameters may be required to
  29     set the gamma ramp (for some weird reason microsoft have left swap gammaramp in device
  30     but it operates on a swapchain, it may be a good idea to move it to IWineD3DSwapChain for IWineD3D)*/
  31
  32
  33 WINE_DEFAULT_DEBUG_CHANNEL(d3d);
  34 WINE_DECLARE_DEBUG_CHANNEL(fps);
  35
  36 #define GLINFO_LOCATION This->device->adapter->gl_info
  37
  38 /*IWineD3DSwapChain parts follow: */
  39 static void WINAPI IWineD3DSwapChainImpl_Destroy(IWineD3DSwapChain *iface)
  40 {
  41     IWineD3DSwapChainImpl *This = (IWineD3DSwapChainImpl *)iface;
  42     WINED3DDISPLAYMODE mode;
  43     unsigned int i;
  44
  45     TRACE("Destroying swapchain %p\n", iface);
  46
  47     IWineD3DSwapChain_SetGammaRamp(iface, 0, &This->orig_gamma);
  48
  49     /* Release the swapchain's draw buffers. Make sure This->backBuffer[0] is
  50      * the last buffer to be destroyed, FindContext() depends on that. */
  51     if (This->frontBuffer)
  52     {
  53         IWineD3DSurface_SetContainer(This->frontBuffer, 0);
  54         if (IWineD3DSurface_Release(This->frontBuffer))
  55         {
  56             WARN("(%p) Something's still holding the front buffer (%p).\n",
  57                     This, This->frontBuffer);
  58         }
  59         This->frontBuffer = NULL;
  60     }
  61
  62     if (This->backBuffer)
  63     {
  64         UINT i = This->presentParms.BackBufferCount;
  65
  66         while (i--)
  67         {
  68             IWineD3DSurface_SetContainer(This->backBuffer[i], 0);
  69             if (IWineD3DSurface_Release(This->backBuffer[i]))
  70                 WARN("(%p) Something's still holding back buffer %u (%p).\n",
  71                         This, i, This->backBuffer[i]);
  72         }
  73         HeapFree(GetProcessHeap(), 0, This->backBuffer);
  74         This->backBuffer = NULL;
  75     }
  76
  77     for (i = 0; i < This->num_contexts; ++i)
  78     {
  79         context_destroy(This->device, This->context[i]);
  80     }
  81     /* Restore the screen resolution if we rendered in fullscreen
  82      * This will restore the screen resolution to what it was before creating the swapchain. In case of d3d8 and d3d9
  83      * this will be the original desktop resolution. In case of d3d7 this will be a NOP because ddraw sets the resolution
  84      * before starting up Direct3D, thus orig_width and orig_height will be equal to the modes in the presentation params
  85      */
  86     if(This->presentParms.Windowed == FALSE && This->presentParms.AutoRestoreDisplayMode) {
  87         mode.Width = This->orig_width;
  88         mode.Height = This->orig_height;
  89         mode.RefreshRate = 0;
  90         mode.Format = This->orig_fmt;
  91         IWineD3DDevice_SetDisplayMode((IWineD3DDevice *)This->device, 0, &mode);
  92     }
  93
  94     wined3d_unregister_window(This->win_handle);
  95
  96     HeapFree(GetProcessHeap(), 0, This->context);
  97     HeapFree(GetProcessHeap(), 0, This);
  98 }
  99
 100 /* A GL context is provided by the caller */
 101 static inline void swapchain_blit(IWineD3DSwapChainImpl *This, struct wined3d_context *context)
 102 {
 103     RECT window;
 104     IWineD3DDeviceImpl *device = This->device;
 105     IWineD3DSurfaceImpl *backbuffer = ((IWineD3DSurfaceImpl *) This->backBuffer[0]);
 106     UINT w = backbuffer->currentDesc.Width;
 107     UINT h = backbuffer->currentDesc.Height;
 108     GLenum gl_filter;
 109     const struct wined3d_gl_info *gl_info = context->gl_info;
 110
 111     GetClientRect(This->win_handle, &window);
 112     if(w == window.right && h == window.bottom) gl_filter = GL_NEAREST;
 113     else gl_filter = GL_LINEAR;
 114
 115     if(gl_info->supported[EXT_FRAMEBUFFER_BLIT])
 116     {
 117         ENTER_GL();
 118         context_bind_fbo(context, GL_READ_FRAMEBUFFER, &context->src_fbo);
 119         context_attach_surface_fbo(context, GL_READ_FRAMEBUFFER, 0, This->backBuffer[0]);
 120         context_attach_depth_stencil_fbo(context, GL_READ_FRAMEBUFFER, NULL, FALSE);
 121
 122         context_bind_fbo(context, GL_DRAW_FRAMEBUFFER, NULL);
 123         context_set_draw_buffer(context, GL_BACK);
 124
 125         glDisable(GL_SCISSOR_TEST);
 126         IWineD3DDeviceImpl_MarkStateDirty(This->device, STATE_RENDER(WINED3DRS_SCISSORTESTENABLE));
 127
 128         /* Note that the texture is upside down */
 129         gl_info->fbo_ops.glBlitFramebuffer(0, 0, w, h,
 130                                            window.left, window.bottom, window.right, window.top,
 131                                            GL_COLOR_BUFFER_BIT, gl_filter);
 132         checkGLcall("Swapchain present blit(EXT_framebuffer_blit)\n");
 133         LEAVE_GL();
 134     }
 135     else
 136     {
 137         struct wined3d_context *context2;
 138         float tex_left = 0;
 139         float tex_top = 0;
 140         float tex_right = w;
 141         float tex_bottom = h;
 142
 143         context2 = context_acquire(This->device, This->backBuffer[0], CTXUSAGE_BLIT);
 144
 145         if(backbuffer->Flags & SFLAG_NORMCOORD)
 146         {
 147             tex_left /= w;
 148             tex_right /= w;
 149             tex_top /= h;
 150             tex_bottom /= h;
 151         }
 152
 153         ENTER_GL();
 154         context_bind_fbo(context2, GL_DRAW_FRAMEBUFFER, NULL);
 155
 156         /* Set up the texture. The surface is not in a IWineD3D*Texture container,
 157          * so there are no d3d texture settings to dirtify
 158          */
 159         device->blitter->set_shader((IWineD3DDevice *) device, backbuffer->resource.format_desc,
 160                                     backbuffer->texture_target, backbuffer->pow2Width,
 161                                     backbuffer->pow2Height);
 162         glTexParameteri(backbuffer->texture_target, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
 163         glTexParameteri(backbuffer->texture_target, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
 164
 165         context_set_draw_buffer(context, GL_BACK);
 166
 167         /* Set the viewport to the destination rectandle, disable any projection
 168          * transformation set up by CTXUSAGE_BLIT, and draw a (-1,-1)-(1,1) quad.
 169          *
 170          * Back up viewport and matrix to avoid breaking last_was_blit
 171          *
 172          * Note that CTXUSAGE_BLIT set up viewport and ortho to match the surface
 173          * size - we want the GL drawable(=window) size.
 174          */
 175         glPushAttrib(GL_VIEWPORT_BIT);
 176         glViewport(window.left, window.top, window.right, window.bottom);
 177         glMatrixMode(GL_PROJECTION);
 178         glPushMatrix();
 179         glLoadIdentity();
 180
 181         glBegin(GL_QUADS);
 182             /* bottom left */
 183             glTexCoord2f(tex_left, tex_bottom);
 184             glVertex2i(-1, -1);
 185
 186             /* top left */
 187             glTexCoord2f(tex_left, tex_top);
 188             glVertex2i(-1, 1);
 189
 190             /* top right */
 191             glTexCoord2f(tex_right, tex_top);
 192             glVertex2i(1, 1);
 193
 194             /* bottom right */
 195             glTexCoord2f(tex_right, tex_bottom);
 196             glVertex2i(1, -1);
 197         glEnd();
 198
 199         glPopMatrix();
 200         glPopAttrib();
 201
 202         device->blitter->unset_shader((IWineD3DDevice *) device);
 203         checkGLcall("Swapchain present blit(manual)\n");
 204         LEAVE_GL();
 205
 206         context_release(context2);
 207     }
 208 }
 209
 210 static HRESULT WINAPI IWineD3DSwapChainImpl_Present(IWineD3DSwapChain *iface, CONST RECT *pSourceRect, CONST RECT *pDestRect, HWND hDestWindowOverride, CONST RGNDATA *pDirtyRegion, DWORD dwFlags) {
 211     IWineD3DSwapChainImpl *This = (IWineD3DSwapChainImpl *)iface;
 212     struct wined3d_context *context;
 213     unsigned int sync;
 214     int retval;
 215
 216     context = context_acquire(This->device, This->backBuffer[0], CTXUSAGE_RESOURCELOAD);
 217
 218     /* Render the cursor onto the back buffer, using our nifty directdraw blitting code :-) */
 219     if (This->device->bCursorVisible && This->device->cursorTexture)
 220     {
 221         IWineD3DSurfaceImpl cursor;
 222         RECT destRect =
 223         {
 224             This->device->xScreenSpace - This->device->xHotSpot,
 225             This->device->yScreenSpace - This->device->yHotSpot,
 226             This->device->xScreenSpace + This->device->cursorWidth - This->device->xHotSpot,
 227             This->device->yScreenSpace + This->device->cursorHeight - This->device->yHotSpot,
 228         };
 229         TRACE("Rendering the cursor. Creating fake surface at %p\n", &cursor);
 230         /* Build a fake surface to call the Blitting code. It is not possible to use the interface passed by
 231          * the application because we are only supposed to copy the information out. Using a fake surface
 232          * allows to use the Blitting engine and avoid copying the whole texture -> render target blitting code.
 233          */
 234         memset(&cursor, 0, sizeof(cursor));
 235         cursor.lpVtbl = &IWineD3DSurface_Vtbl;
 236         cursor.resource.ref = 1;
 237         cursor.resource.device = This->device;
 238         cursor.resource.pool = WINED3DPOOL_SCRATCH;
 239         cursor.resource.format_desc = getFormatDescEntry(WINED3DFMT_B8G8R8A8_UNORM, context->gl_info);
 240         cursor.resource.resourceType = WINED3DRTYPE_SURFACE;
 241         cursor.texture_name = This->device->cursorTexture;
 242         cursor.texture_target = GL_TEXTURE_2D;
 243         cursor.texture_level = 0;
 244         cursor.currentDesc.Width = This->device->cursorWidth;
 245         cursor.currentDesc.Height = This->device->cursorHeight;
 246         cursor.glRect.left = 0;
 247         cursor.glRect.top = 0;
 248         cursor.glRect.right = cursor.currentDesc.Width;
 249         cursor.glRect.bottom = cursor.currentDesc.Height;
 250         /* The cursor must have pow2 sizes */
 251         cursor.pow2Width = cursor.currentDesc.Width;
 252         cursor.pow2Height = cursor.currentDesc.Height;
 253         /* The surface is in the texture */
 254         cursor.Flags |= SFLAG_INTEXTURE;
 255         /* DDBLT_KEYSRC will cause BltOverride to enable the alpha test with GL_NOTEQUAL, 0.0,
 256          * which is exactly what we want :-)
 257          */
 258         if (This->presentParms.Windowed) {
 259             MapWindowPoints(NULL, This->win_handle, (LPPOINT)&destRect, 2);
 260         }
 261         IWineD3DSurface_Blt(This->backBuffer[0], &destRect, (IWineD3DSurface *)&cursor,
 262                 NULL, WINEDDBLT_KEYSRC, NULL, WINED3DTEXF_POINT);
 263     }
 264
 265     if (This->device->logo_surface)
 266     {
 267         /* Blit the logo into the upper left corner of the drawable. */
 268         IWineD3DSurface_BltFast(This->backBuffer[0], 0, 0, This->device->logo_surface, NULL, WINEDDBLTFAST_SRCCOLORKEY);
 269     }
 270
 271     if (pSourceRect || pDestRect) FIXME("Unhandled present rects %s/%s\n", wine_dbgstr_rect(pSourceRect), wine_dbgstr_rect(pDestRect));
 272     /* TODO: If only source rect or dest rect are supplied then clip the window to match */
 273     TRACE("presetting HDC %p\n", This->context[0]->hdc);
 274
 275     /* Don't call checkGLcall, as glGetError is not applicable here */
 276     if (hDestWindowOverride && This->win_handle != hDestWindowOverride) {
 277         IWineD3DSwapChain_SetDestWindowOverride(iface, hDestWindowOverride);
 278     }
 279
 280     /* Rendering to a window of different size, presenting partial rectangles,
 281      * or rendering to a different window needs help from FBO_blit or a textured
 282      * draw. Render the swapchain to a FBO in the future.
 283      *
 284      * Note that FBO_blit from the backbuffer to the frontbuffer cannot solve
 285      * all these issues - this fails if the window is smaller than the backbuffer.
 286      */
 287     if(This->presentParms.Windowed && !This->render_to_fbo &&
 288        wined3d_settings.offscreen_rendering_mode == ORM_FBO)
 289     {
 290         RECT window_size;
 291         GetClientRect(This->win_handle, &window_size);
 292         if(window_size.bottom != This->presentParms.BackBufferHeight ||
 293            window_size.right != This->presentParms.BackBufferWidth)
 294         {
 295             TRACE("Window size changed from %ux%u to %ux%u, switching to render-to-fbo mode\n",
 296                 This->presentParms.BackBufferWidth, This->presentParms.BackBufferHeight,
 297                 window_size.right, window_size.bottom);
 298
 299             IWineD3DSurface_LoadLocation(This->backBuffer[0], SFLAG_INTEXTURE, NULL);
 300             IWineD3DSurface_ModifyLocation(This->backBuffer[0], SFLAG_INDRAWABLE, FALSE);
 301             This->render_to_fbo = TRUE;
 302
 303             /* Force the context manager to update the render target configuration next draw */
 304             context->current_rt = NULL;
 305         }
 306     }
 307
 308     if(This->render_to_fbo)
 309     {
 310         /* This codepath should only be hit with the COPY swapeffect. Otherwise a backbuffer-
 311          * window size mismatch is impossible(fullscreen) and src and dst rectangles are
 312          * not allowed(they need the COPY swapeffect)
 313          *
 314          * The DISCARD swap effect is ok as well since any backbuffer content is allowed after
 315          * the swap
 316          */
 317         if(This->presentParms.SwapEffect == WINED3DSWAPEFFECT_FLIP )
 318         {
 319             FIXME("Render-to-fbo with WINED3DSWAPEFFECT_FLIP\n");
 320         }
 321         swapchain_blit(This, context);
 322     }
 323
 324     SwapBuffers(This->context[0]->hdc); /* TODO: cycle through the swapchain buffers */
 325
 326     TRACE("SwapBuffers called, Starting new frame\n");
 327     /* FPS support */
 328     if (TRACE_ON(fps))
 329     {
 330         DWORD time = GetTickCount();
 331         This->frames++;
 332         /* every 1.5 seconds */
 333         if (time - This->prev_time > 1500) {
 334             TRACE_(fps)("%p @ approx %.2ffps\n", This, 1000.0*This->frames/(time - This->prev_time));
 335             This->prev_time = time;
 336             This->frames = 0;
 337         }
 338     }
 339
 340 #if defined(FRAME_DEBUGGING)
 341 {
 342     if (GetFileAttributesA("C:\\D3DTRACE") != INVALID_FILE_ATTRIBUTES) {
 343         if (!isOn) {
 344             isOn = TRUE;
 345             FIXME("Enabling D3D Trace\n");
 346             __WINE_SET_DEBUGGING(__WINE_DBCL_TRACE, __wine_dbch_d3d, 1);
 347 #if defined(SHOW_FRAME_MAKEUP)
 348             FIXME("Singe Frame snapshots Starting\n");
 349             isDumpingFrames = TRUE;
 350             ENTER_GL();
 351             glClear(GL_COLOR_BUFFER_BIT);
 352             LEAVE_GL();
 353 #endif
 354
 355 #if defined(SINGLE_FRAME_DEBUGGING)
 356         } else {
 357 #if defined(SHOW_FRAME_MAKEUP)
 358             FIXME("Singe Frame snapshots Finishing\n");
 359             isDumpingFrames = FALSE;
 360 #endif
 361             FIXME("Singe Frame trace complete\n");
 362             DeleteFileA("C:\\D3DTRACE");
 363             __WINE_SET_DEBUGGING(__WINE_DBCL_TRACE, __wine_dbch_d3d, 0);
 364 #endif
 365         }
 366     } else {
 367         if (isOn) {
 368             isOn = FALSE;
 369 #if defined(SHOW_FRAME_MAKEUP)
 370             FIXME("Single Frame snapshots Finishing\n");
 371             isDumpingFrames = FALSE;
 372 #endif
 373             FIXME("Disabling D3D Trace\n");
 374             __WINE_SET_DEBUGGING(__WINE_DBCL_TRACE, __wine_dbch_d3d, 0);
 375         }
 376     }
 377 }
 378 #endif
 379
 380     /* This is disabled, but the code left in for debug purposes.
 381      *
 382      * Since we're allowed to modify the new back buffer on a D3DSWAPEFFECT_DISCARD flip,
 383      * we can clear it with some ugly color to make bad drawing visible and ease debugging.
 384      * The Debug runtime does the same on Windows. However, a few games do not redraw the
 385      * screen properly, like Max Payne 2, which leaves a few pixels undefined.
 386      *
 387      * Tests show that the content of the back buffer after a discard flip is indeed not
 388      * reliable, so no game can depend on the exact content. However, it resembles the
 389      * old contents in some way, for example by showing fragments at other locations. In
 390      * general, the color theme is still intact. So Max payne, which draws rather dark scenes
 391      * gets a dark background image. If we clear it with a bright ugly color, the game's
 392      * bug shows up much more than it does on Windows, and the players see single pixels
 393      * with wrong colors.
 394      * (The Max Payne bug has been confirmed on Windows with the debug runtime)
 395      */
 396     if (FALSE && This->presentParms.SwapEffect == WINED3DSWAPEFFECT_DISCARD) {
 397         TRACE("Clearing the color buffer with cyan color\n");
 398
 399         IWineD3DDevice_Clear((IWineD3DDevice *)This->device, 0, NULL,
 400                 WINED3DCLEAR_TARGET, 0xff00ffff, 1.0f, 0);
 401     }
 402
 403     if(!This->render_to_fbo &&
 404        ( ((IWineD3DSurfaceImpl *) This->frontBuffer)->Flags   & SFLAG_INSYSMEM ||
 405          ((IWineD3DSurfaceImpl *) This->backBuffer[0])->Flags & SFLAG_INSYSMEM ) ) {
 406         /* Both memory copies of the surfaces are ok, flip them around too instead of dirtifying
 407          * Doesn't work with render_to_fbo because we're not flipping
 408          */
 409         IWineD3DSurfaceImpl *front = (IWineD3DSurfaceImpl *) This->frontBuffer;
 410         IWineD3DSurfaceImpl *back = (IWineD3DSurfaceImpl *) This->backBuffer[0];
 411
 412         if(front->resource.size == back->resource.size) {
 413             DWORD fbflags;
 414             flip_surface(front, back);
 415
 416             /* Tell the front buffer surface that is has been modified. However,
 417              * the other locations were preserved during that, so keep the flags.
 418              * This serves to update the emulated overlay, if any
 419              */
 420             fbflags = front->Flags;
 421             IWineD3DSurface_ModifyLocation(This->frontBuffer, SFLAG_INDRAWABLE, TRUE);
 422             front->Flags = fbflags;
 423         } else {
 424             IWineD3DSurface_ModifyLocation((IWineD3DSurface *) front, SFLAG_INDRAWABLE, TRUE);
 425             IWineD3DSurface_ModifyLocation((IWineD3DSurface *) back, SFLAG_INDRAWABLE, TRUE);
 426         }
 427     } else {
 428         IWineD3DSurface_ModifyLocation(This->frontBuffer, SFLAG_INDRAWABLE, TRUE);
 429         /* If the swapeffect is DISCARD, the back buffer is undefined. That means the SYSMEM
 430          * and INTEXTURE copies can keep their old content if they have any defined content.
 431          * If the swapeffect is COPY, the content remains the same. If it is FLIP however,
 432          * the texture / sysmem copy needs to be reloaded from the drawable
 433          */
 434         if(This->presentParms.SwapEffect == WINED3DSWAPEFFECT_FLIP) {
 435             IWineD3DSurface_ModifyLocation(This->backBuffer[0], SFLAG_INDRAWABLE, TRUE);
 436         }
 437     }
 438
 439     if (This->device->stencilBufferTarget)
 440     {
 441         if (This->presentParms.Flags & WINED3DPRESENTFLAG_DISCARD_DEPTHSTENCIL
 442                 || ((IWineD3DSurfaceImpl *)This->device->stencilBufferTarget)->Flags & SFLAG_DISCARD)
 443         {
 444             surface_modify_ds_location(This->device->stencilBufferTarget, SFLAG_DS_DISCARDED);
 445         }
 446     }
 447
 448     if (This->presentParms.PresentationInterval != WINED3DPRESENT_INTERVAL_IMMEDIATE
 449             && context->gl_info->supported[SGI_VIDEO_SYNC])
 450     {
 451         retval = GL_EXTCALL(glXGetVideoSyncSGI(&sync));
 452         if(retval != 0) {
 453             ERR("glXGetVideoSyncSGI failed(retval = %d\n", retval);
 454         }
 455
 456         switch(This->presentParms.PresentationInterval) {
 457             case WINED3DPRESENT_INTERVAL_DEFAULT:
 458             case WINED3DPRESENT_INTERVAL_ONE:
 459                 if(sync <= This->vSyncCounter) {
 460                     retval = GL_EXTCALL(glXWaitVideoSyncSGI(1, 0, &This->vSyncCounter));
 461                 } else {
 462                     This->vSyncCounter = sync;
 463                 }
 464                 break;
 465             case WINED3DPRESENT_INTERVAL_TWO:
 466                 if(sync <= This->vSyncCounter + 1) {
 467                     retval = GL_EXTCALL(glXWaitVideoSyncSGI(2, This->vSyncCounter & 0x1, &This->vSyncCounter));
 468                 } else {
 469                     This->vSyncCounter = sync;
 470                 }
 471                 break;
 472             case WINED3DPRESENT_INTERVAL_THREE:
 473                 if(sync <= This->vSyncCounter + 2) {
 474                     retval = GL_EXTCALL(glXWaitVideoSyncSGI(3, This->vSyncCounter % 0x3, &This->vSyncCounter));
 475                 } else {
 476                     This->vSyncCounter = sync;
 477                 }
 478                 break;
 479             case WINED3DPRESENT_INTERVAL_FOUR:
 480                 if(sync <= This->vSyncCounter + 3) {
 481                     retval = GL_EXTCALL(glXWaitVideoSyncSGI(4, This->vSyncCounter & 0x3, &This->vSyncCounter));
 482                 } else {
 483                     This->vSyncCounter = sync;
 484                 }
 485                 break;
 486             default:
 487                 FIXME("Unknown presentation interval %08x\n", This->presentParms.PresentationInterval);
 488         }
 489     }
 490
 491     context_release(context);
 492
 493     TRACE("returning\n");
 494     return WINED3D_OK;
 495 }
 496
 497 static HRESULT WINAPI IWineD3DSwapChainImpl_SetDestWindowOverride(IWineD3DSwapChain *iface, HWND window) {
 498     IWineD3DSwapChainImpl *This = (IWineD3DSwapChainImpl *)iface;
 499     WINED3DLOCKED_RECT r;
 500     BYTE *mem;
 501
 502     if(window == This->win_handle) return WINED3D_OK;
 503
 504     TRACE("Performing dest override of swapchain %p from window %p to %p\n", This, This->win_handle, window);
 505     if (This->context[0] == This->device->contexts[0])
 506     {
 507         /* The primary context 'owns' all the opengl resources. Destroying and recreating that context requires downloading
 508          * all opengl resources, deleting the gl resources, destroying all other contexts, then recreating all other contexts
 509          * and reload the resources
 510          */
 511         delete_opengl_contexts((IWineD3DDevice *)This->device, iface);
 512         This->win_handle = window;
 513         create_primary_opengl_context((IWineD3DDevice *)This->device, iface);
 514     }
 515     else
 516     {
 517         This->win_handle = window;
 518
 519         /* The old back buffer has to be copied over to the new back buffer. A lockrect - switchcontext - unlockrect
 520          * would suffice in theory, but it is rather nasty and may cause troubles with future changes of the locking code
 521          * So lock read only, copy the surface out, then lock with the discard flag and write back
 522          */
 523         IWineD3DSurface_LockRect(This->backBuffer[0], &r, NULL, WINED3DLOCK_READONLY);
 524         mem = HeapAlloc(GetProcessHeap(), 0, r.Pitch * ((IWineD3DSurfaceImpl *) This->backBuffer[0])->currentDesc.Height);
 525         memcpy(mem, r.pBits, r.Pitch * ((IWineD3DSurfaceImpl *) This->backBuffer[0])->currentDesc.Height);
 526         IWineD3DSurface_UnlockRect(This->backBuffer[0]);
 527
 528         context_destroy(This->device, This->context[0]);
 529         This->context[0] = context_create(This->device, (IWineD3DSurfaceImpl *)This->frontBuffer,
 530                 This->win_handle, FALSE /* pbuffer */, &This->presentParms);
 531         context_release(This->context[0]);
 532
 533         IWineD3DSurface_LockRect(This->backBuffer[0], &r, NULL, WINED3DLOCK_DISCARD);
 534         memcpy(r.pBits, mem, r.Pitch * ((IWineD3DSurfaceImpl *) This->backBuffer[0])->currentDesc.Height);
 535         HeapFree(GetProcessHeap(), 0, mem);
 536         IWineD3DSurface_UnlockRect(This->backBuffer[0]);
 537     }
 538     return WINED3D_OK;
 539 }
 540
 541 static const IWineD3DSwapChainVtbl IWineD3DSwapChain_Vtbl =
 542 {
 543     /* IUnknown */
 544     IWineD3DBaseSwapChainImpl_QueryInterface,
 545     IWineD3DBaseSwapChainImpl_AddRef,
 546     IWineD3DBaseSwapChainImpl_Release,
 547     /* IWineD3DSwapChain */
 548     IWineD3DBaseSwapChainImpl_GetParent,
 549     IWineD3DSwapChainImpl_Destroy,
 550     IWineD3DBaseSwapChainImpl_GetDevice,
 551     IWineD3DSwapChainImpl_Present,
 552     IWineD3DSwapChainImpl_SetDestWindowOverride,
 553     IWineD3DBaseSwapChainImpl_GetFrontBufferData,
 554     IWineD3DBaseSwapChainImpl_GetBackBuffer,
 555     IWineD3DBaseSwapChainImpl_GetRasterStatus,
 556     IWineD3DBaseSwapChainImpl_GetDisplayMode,
 557     IWineD3DBaseSwapChainImpl_GetPresentParameters,
 558     IWineD3DBaseSwapChainImpl_SetGammaRamp,
 559     IWineD3DBaseSwapChainImpl_GetGammaRamp
 560 };
 561
 562 static LONG fullscreen_style(LONG style)
 563 {
 564     /* Make sure the window is managed, otherwise we won't get keyboard input. */
 565     style |= WS_POPUP | WS_SYSMENU;
 566     style &= ~(WS_CAPTION | WS_THICKFRAME);
 567
 568     return style;
 569 }
 570
 571 static LONG fullscreen_exstyle(LONG exstyle)
 572 {
 573     /* Filter out window decorations. */
 574     exstyle &= ~(WS_EX_WINDOWEDGE | WS_EX_CLIENTEDGE);
 575
 576     return exstyle;
 577 }
 578
 579 void swapchain_setup_fullscreen_window(IWineD3DSwapChainImpl *swapchain, UINT w, UINT h)
 580 {
 581     IWineD3DDeviceImpl *device = swapchain->device;
 582     HWND window = swapchain->win_handle;
 583     BOOL filter_messages;
 584     LONG style, exstyle;
 585
 586     TRACE("Setting up window %p for fullscreen mode.\n", window);
 587
 588     if (device->style || device->exStyle)
 589     {
 590         ERR("Changing the window style for window %p, but another style (%08x, %08x) is already stored.\n",
 591                 window, device->style, device->exStyle);
 592     }
 593
 594     device->style = GetWindowLongW(window, GWL_STYLE);
 595     device->exStyle = GetWindowLongW(window, GWL_EXSTYLE);
 596
 597     style = fullscreen_style(device->style);
 598     exstyle = fullscreen_exstyle(device->exStyle);
 599
 600     TRACE("Old style was %08x, %08x, setting to %08x, %08x.\n",
 601             device->style, device->exStyle, style, exstyle);
 602
 603     filter_messages = swapchain->filter_messages;
 604     swapchain->filter_messages = TRUE;
 605
 606     SetWindowLongW(window, GWL_STYLE, style);
 607     SetWindowLongW(window, GWL_EXSTYLE, exstyle);
 608     SetWindowPos(window, HWND_TOP, 0, 0, w, h, SWP_FRAMECHANGED | SWP_SHOWWINDOW);
 609
 610     swapchain->filter_messages = filter_messages;
 611 }
 612
 613 void swapchain_restore_fullscreen_window(IWineD3DSwapChainImpl *swapchain)
 614 {
 615     IWineD3DDeviceImpl *device = swapchain->device;
 616     HWND window = swapchain->win_handle;
 617     BOOL filter_messages;
 618     LONG style, exstyle;
 619
 620     if (!device->style && !device->exStyle) return;
 621
 622     TRACE("Restoring window style of window %p to %08x, %08x.\n",
 623             window, device->style, device->exStyle);
 624
 625     style = GetWindowLongW(window, GWL_STYLE);
 626     exstyle = GetWindowLongW(window, GWL_EXSTYLE);
 627
 628     filter_messages = swapchain->filter_messages;
 629     swapchain->filter_messages = TRUE;
 630
 631     /* Only restore the style if the application didn't modify it during the
 632      * fullscreen phase. Some applications change it before calling Reset()
 633      * when switching between windowed and fullscreen modes (HL2), some
 634      * depend on the original style (Eve Online). */
 635     if (style == fullscreen_style(device->style) && exstyle == fullscreen_exstyle(device->exStyle))
 636     {
 637         SetWindowLongW(window, GWL_STYLE, device->style);
 638         SetWindowLongW(window, GWL_EXSTYLE, device->exStyle);
 639     }
 640     SetWindowPos(window, 0, 0, 0, 0, 0, SWP_FRAMECHANGED | SWP_NOMOVE | SWP_NOSIZE | SWP_NOZORDER);
 641
 642     swapchain->filter_messages = filter_messages;
 643
 644     /* Delete the old values. */
 645     device->style = 0;
 646     device->exStyle = 0;
 647 }
 648
 649
 650 HRESULT swapchain_init(IWineD3DSwapChainImpl *swapchain, WINED3DSURFTYPE surface_type,
 651         IWineD3DDeviceImpl *device, WINED3DPRESENT_PARAMETERS *present_parameters, IUnknown *parent)
 652 {
 653     const struct wined3d_adapter *adapter = device->adapter;
 654     const struct GlPixelFormatDesc *format_desc;
 655     BOOL displaymode_set = FALSE;
 656     WINED3DDISPLAYMODE mode;
 657     RECT client_rect;
 658     HWND window;
 659     HRESULT hr;
 660     UINT i;
 661
 662     if (present_parameters->BackBufferCount > WINED3DPRESENT_BACK_BUFFER_MAX)
 663     {
 664         FIXME("The application requested %u back buffers, this is not supported.\n",
 665                 present_parameters->BackBufferCount);
 666         return WINED3DERR_INVALIDCALL;
 667     }
 668
 669     if (present_parameters->BackBufferCount > 1)
 670     {
 671         FIXME("The application requested more than one back buffer, this is not properly supported.\n"
 672                 "Please configure the application to use double buffering (1 back buffer) if possible.\n");
 673     }
 674
 675     switch (surface_type)
 676     {
 677         case SURFACE_GDI:
 678             swapchain->lpVtbl = &IWineGDISwapChain_Vtbl;
 679             break;
 680
 681         case SURFACE_OPENGL:
 682             swapchain->lpVtbl = &IWineD3DSwapChain_Vtbl;
 683             break;
 684
 685         case SURFACE_UNKNOWN:
 686             FIXME("Caller tried to create a SURFACE_UNKNOWN swapchain.\n");
 687             return WINED3DERR_INVALIDCALL;
 688     }
 689
 690     window = present_parameters->hDeviceWindow ? present_parameters->hDeviceWindow : device->createParms.hFocusWindow;
 691
 692     if (!wined3d_register_window(window, swapchain))
 693     {
 694         ERR("Failed to register window %p.\n", window);
 695         return E_FAIL;
 696     }
 697
 698     swapchain->device = device;
 699     swapchain->parent = parent;
 700     swapchain->ref = 1;
 701     swapchain->win_handle = window;
 702
 703     if (!present_parameters->Windowed && window)
 704     {
 705         swapchain_setup_fullscreen_window(swapchain, present_parameters->BackBufferWidth,
 706                 present_parameters->BackBufferHeight);
 707     }
 708
 709     IWineD3D_GetAdapterDisplayMode(device->wined3d, adapter->ordinal, &mode);
 710     swapchain->orig_width = mode.Width;
 711     swapchain->orig_height = mode.Height;
 712     swapchain->orig_fmt = mode.Format;
 713     format_desc = getFormatDescEntry(mode.Format, &adapter->gl_info);
 714
 715     GetClientRect(window, &client_rect);
 716     if (present_parameters->Windowed
 717             && (!present_parameters->BackBufferWidth || !present_parameters->BackBufferHeight
 718             || present_parameters->BackBufferFormat == WINED3DFMT_UNKNOWN))
 719     {
 720
 721         if (!present_parameters->BackBufferWidth)
 722         {
 723             present_parameters->BackBufferWidth = client_rect.right;
 724             TRACE("Updating width to %u.\n", present_parameters->BackBufferWidth);
 725         }
 726
 727         if (!present_parameters->BackBufferHeight)
 728         {
 729             present_parameters->BackBufferHeight = client_rect.bottom;
 730             TRACE("Updating height to %u.\n", present_parameters->BackBufferHeight);
 731         }
 732
 733         if (present_parameters->BackBufferFormat == WINED3DFMT_UNKNOWN)
 734         {
 735             present_parameters->BackBufferFormat = swapchain->orig_fmt;
 736             TRACE("Updating format to %s.\n", debug_d3dformat(swapchain->orig_fmt));
 737         }
 738     }
 739     swapchain->presentParms = *present_parameters;
 740
 741     if (wined3d_settings.offscreen_rendering_mode == ORM_FBO
 742             && (present_parameters->BackBufferWidth != client_rect.right
 743             || present_parameters->BackBufferHeight != client_rect.bottom))
 744     {
 745         TRACE("Rendering to FBO. Backbuffer %ux%u, window %ux%u.\n",
 746                 present_parameters->BackBufferWidth,
 747                 present_parameters->BackBufferHeight,
 748                 client_rect.right, client_rect.bottom);
 749         swapchain->render_to_fbo = TRUE;
 750     }
 751
 752     TRACE("Creating front buffer.\n");
 753     hr = IWineD3DDeviceParent_CreateRenderTarget(device->device_parent, parent,
 754             swapchain->presentParms.BackBufferWidth, swapchain->presentParms.BackBufferHeight,
 755             swapchain->presentParms.BackBufferFormat, swapchain->presentParms.MultiSampleType,
 756             swapchain->presentParms.MultiSampleQuality, TRUE /* Lockable */, &swapchain->frontBuffer);
 757     if (FAILED(hr))
 758     {
 759         WARN("Failed to create front buffer, hr %#x.\n", hr);
 760         goto err;
 761     }
 762
 763     IWineD3DSurface_SetContainer(swapchain->frontBuffer, (IWineD3DBase *)swapchain);
 764     ((IWineD3DSurfaceImpl *)swapchain->frontBuffer)->Flags |= SFLAG_SWAPCHAIN;
 765     if (surface_type == SURFACE_OPENGL)
 766     {
 767         IWineD3DSurface_ModifyLocation(swapchain->frontBuffer, SFLAG_INDRAWABLE, TRUE);
 768     }
 769
 770     /* MSDN says we're only allowed a single fullscreen swapchain per device,
 771      * so we should really check to see if there is a fullscreen swapchain
 772      * already. Does a single head count as full screen? */
 773
 774     if (!present_parameters->Windowed)
 775     {
 776         WINED3DDISPLAYMODE mode;
 777
 778         /* Change the display settings */
 779         mode.Width = present_parameters->BackBufferWidth;
 780         mode.Height = present_parameters->BackBufferHeight;
 781         mode.Format = present_parameters->BackBufferFormat;
 782         mode.RefreshRate = present_parameters->FullScreen_RefreshRateInHz;
 783
 784         hr = IWineD3DDevice_SetDisplayMode((IWineD3DDevice *)device, 0, &mode);
 785         if (FAILED(hr))
 786         {
 787             WARN("Failed to set display mode, hr %#x.\n", hr);
 788             goto err;
 789         }
 790         displaymode_set = TRUE;
 791     }
 792
 793     swapchain->context = HeapAlloc(GetProcessHeap(), 0, sizeof(swapchain->context));
 794     if (!swapchain->context)
 795     {
 796         ERR("Failed to create the context array.\n");
 797         hr = E_OUTOFMEMORY;
 798         goto err;
 799     }
 800     swapchain->num_contexts = 1;
 801
 802     if (surface_type == SURFACE_OPENGL)
 803     {
 804         swapchain->context[0] = context_create(device, (IWineD3DSurfaceImpl *)swapchain->frontBuffer,
 805                 window, FALSE /* pbuffer */, present_parameters);
 806         if (!swapchain->context[0])
 807         {
 808             WARN("Failed to create context.\n");
 809             hr = WINED3DERR_NOTAVAILABLE;
 810             goto err;
 811         }
 812
 813         swapchain->context[0]->render_offscreen = swapchain->render_to_fbo;
 814     }
 815     else
 816     {
 817         swapchain->context[0] = NULL;
 818     }
 819
 820     if (swapchain->presentParms.BackBufferCount > 0)
 821     {
 822         swapchain->backBuffer = HeapAlloc(GetProcessHeap(), 0,
 823                 sizeof(*swapchain->backBuffer) * swapchain->presentParms.BackBufferCount);
 824         if (!swapchain->backBuffer)
 825         {
 826             ERR("Failed to allocate backbuffer array memory.\n");
 827             hr = E_OUTOFMEMORY;
 828             goto err;
 829         }
 830
 831         for (i = 0; i < swapchain->presentParms.BackBufferCount; ++i)
 832         {
 833             TRACE("Creating back buffer %u.\n", i);
 834             hr = IWineD3DDeviceParent_CreateRenderTarget(device->device_parent, parent,
 835                     swapchain->presentParms.BackBufferWidth, swapchain->presentParms.BackBufferHeight,
 836                     swapchain->presentParms.BackBufferFormat, swapchain->presentParms.MultiSampleType,
 837                     swapchain->presentParms.MultiSampleQuality, TRUE /* Lockable */, &swapchain->backBuffer[i]);
 838             if (FAILED(hr))
 839             {
 840                 WARN("Failed to create back buffer %u, hr %#x.\n", i, hr);
 841                 goto err;
 842             }
 843
 844             IWineD3DSurface_SetContainer(swapchain->backBuffer[i], (IWineD3DBase *)swapchain);
 845             ((IWineD3DSurfaceImpl *)swapchain->backBuffer[i])->Flags |= SFLAG_SWAPCHAIN;
 846
 847             if (surface_type == SURFACE_OPENGL)
 848             {
 849                 ENTER_GL();
 850                 glDrawBuffer(GL_BACK);
 851                 checkGLcall("glDrawBuffer(GL_BACK)");
 852                 LEAVE_GL();
 853             }
 854         }
 855     }
 856     else
 857     {
 858         /* Single buffering - draw to front buffer */
 859         if (surface_type == SURFACE_OPENGL)
 860         {
 861             ENTER_GL();
 862             glDrawBuffer(GL_FRONT);
 863             checkGLcall("glDrawBuffer(GL_FRONT)");
 864             LEAVE_GL();
 865         }
 866     }
 867
 868     if (swapchain->context[0]) context_release(swapchain->context[0]);
 869
 870     /* Swapchains share the depth/stencil buffer, so only create a single depthstencil surface. */
 871     if (present_parameters->EnableAutoDepthStencil && surface_type == SURFACE_OPENGL)
 872     {
 873         TRACE("Creating depth/stencil buffer.\n");
 874         if (!device->auto_depth_stencil_buffer)
 875         {
 876             hr = IWineD3DDeviceParent_CreateDepthStencilSurface(device->device_parent, parent,
 877                     swapchain->presentParms.BackBufferWidth, swapchain->presentParms.BackBufferHeight,
 878                     swapchain->presentParms.AutoDepthStencilFormat, swapchain->presentParms.MultiSampleType,
 879                     swapchain->presentParms.MultiSampleQuality, FALSE /* FIXME: Discard */,
 880                     &device->auto_depth_stencil_buffer);
 881             if (FAILED(hr))
 882             {
 883                 WARN("Failed to create the auto depth stencil, hr %#x.\n", hr);
 884                 goto err;
 885             }
 886
 887             IWineD3DSurface_SetContainer(device->auto_depth_stencil_buffer, NULL);
 888         }
 889     }
 890
 891     IWineD3DSwapChain_GetGammaRamp((IWineD3DSwapChain *)swapchain, &swapchain->orig_gamma);
 892
 893     return WINED3D_OK;
 894
 895 err:
 896     if (displaymode_set)
 897     {
 898         DEVMODEW devmode;
 899
 900         ClipCursor(NULL);
 901
 902         /* Change the display settings */
 903         memset(&devmode, 0, sizeof(devmode));
 904         devmode.dmSize = sizeof(devmode);
 905         devmode.dmFields = DM_BITSPERPEL | DM_PELSWIDTH | DM_PELSHEIGHT;
 906         devmode.dmBitsPerPel = format_desc->byte_count * 8;
 907         devmode.dmPelsWidth = swapchain->orig_width;
 908         devmode.dmPelsHeight = swapchain->orig_height;
 909         ChangeDisplaySettingsExW(adapter->DeviceName, &devmode, NULL, CDS_FULLSCREEN, NULL);
 910     }
 911
 912     if (swapchain->backBuffer)
 913     {
 914         for (i = 0; i < swapchain->presentParms.BackBufferCount; ++i)
 915         {
 916             if (swapchain->backBuffer[i]) IWineD3DSurface_Release(swapchain->backBuffer[i]);
 917         }
 918         HeapFree(GetProcessHeap(), 0, swapchain->backBuffer);
 919     }
 920
 921     if (swapchain->context && swapchain->context[0])
 922     {
 923         context_release(swapchain->context[0]);
 924         context_destroy(device, swapchain->context[0]);
 925     }
 926
 927     if (swapchain->frontBuffer) IWineD3DSurface_Release(swapchain->frontBuffer);
 928
 929     wined3d_unregister_window(window);
 930
 931     return hr;
 932 }
 933
 934 struct wined3d_context *swapchain_create_context_for_thread(IWineD3DSwapChain *iface)
 935 {
 936     IWineD3DSwapChainImpl *This = (IWineD3DSwapChainImpl *) iface;
 937     struct wined3d_context **newArray;
 938     struct wined3d_context *ctx;
 939
 940     TRACE("Creating a new context for swapchain %p, thread %d\n", This, GetCurrentThreadId());
 941
 942     ctx = context_create(This->device, (IWineD3DSurfaceImpl *)This->frontBuffer,
 943             This->context[0]->win_handle, FALSE /* pbuffer */, &This->presentParms);
 944     if (!ctx)
 945     {
 946         ERR("Failed to create a new context for the swapchain\n");
 947         return NULL;
 948     }
 949     context_release(ctx);
 950
 951     newArray = HeapAlloc(GetProcessHeap(), 0, sizeof(*newArray) * This->num_contexts + 1);
 952     if(!newArray) {
 953         ERR("Out of memory when trying to allocate a new context array\n");
 954         context_destroy(This->device, ctx);
 955         return NULL;
 956     }
 957     memcpy(newArray, This->context, sizeof(*newArray) * This->num_contexts);
 958     HeapFree(GetProcessHeap(), 0, This->context);
 959     newArray[This->num_contexts] = ctx;
 960     This->context = newArray;
 961     This->num_contexts++;
 962
 963     TRACE("Returning context %p\n", ctx);
 964     return ctx;
 965 }
 966
 967 void get_drawable_size_swapchain(struct wined3d_context *context, UINT *width, UINT *height)
 968 {
 969     IWineD3DSurfaceImpl *surface = (IWineD3DSurfaceImpl *)context->current_rt;
 970     /* The drawable size of an onscreen drawable is the surface size.
 971      * (Actually: The window size, but the surface is created in window size) */
 972     *width = surface->currentDesc.Width;
 973     *height = surface->currentDesc.Height;
 974 }
 975
 976 LRESULT swapchain_process_message(IWineD3DSwapChainImpl *swapchain, HWND window,
 977         UINT message, WPARAM wparam, LPARAM lparam, WNDPROC proc)
 978 {
 979     if (swapchain->filter_messages)
 980     {
 981         TRACE("Filtering message: window %p, message %#x, wparam %#lx, lparam %#lx.\n",
 982                 window, message, wparam, lparam);
 983         return DefWindowProcW(window, message, wparam, lparam);
 984     }
 985
 986     if (message == WM_DESTROY)
 987     {
 988         TRACE("unregister window %p.\n", window);
 989         wined3d_unregister_window(window);
 990     }
 991
 992     return CallWindowProcW(proc, window, message, wparam, lparam);
 993 }