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