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 /* Do not call while under the GL lock. */
  37 static void WINAPI IWineD3DSwapChainImpl_Destroy(IWineD3DSwapChain *iface)
  38 {
  39     IWineD3DSwapChainImpl *This = (IWineD3DSwapChainImpl *)iface;
  40     WINED3DDISPLAYMODE mode;
  41     unsigned int i;
  42
  43     TRACE("Destroying swapchain %p\n", iface);
  44
  45     IWineD3DSwapChain_SetGammaRamp(iface, 0, &This->orig_gamma);
  46
  47     /* Release the swapchain's draw buffers. Make sure This->back_buffers[0] is
  48      * the last buffer to be destroyed, FindContext() depends on that. */
  49     if (This->front_buffer)
  50     {
  51         surface_set_container(This->front_buffer, WINED3D_CONTAINER_NONE, NULL);
  52         if (IWineD3DSurface_Release((IWineD3DSurface *)This->front_buffer))
  53         {
  54             WARN("(%p) Something's still holding the front buffer (%p).\n",
  55                     This, This->front_buffer);
  56         }
  57         This->front_buffer = NULL;
  58     }
  59
  60     if (This->back_buffers)
  61     {
  62         UINT i = This->presentParms.BackBufferCount;
  63
  64         while (i--)
  65         {
  66             surface_set_container(This->back_buffers[i], WINED3D_CONTAINER_NONE, NULL);
  67             if (IWineD3DSurface_Release((IWineD3DSurface *)This->back_buffers[i]))
  68                 WARN("(%p) Something's still holding back buffer %u (%p).\n",
  69                         This, i, This->back_buffers[i]);
  70         }
  71         HeapFree(GetProcessHeap(), 0, This->back_buffers);
  72         This->back_buffers = NULL;
  73     }
  74
  75     for (i = 0; i < This->num_contexts; ++i)
  76     {
  77         context_destroy(This->device, This->context[i]);
  78     }
  79     /* Restore the screen resolution if we rendered in fullscreen
  80      * This will restore the screen resolution to what it was before creating the swapchain. In case of d3d8 and d3d9
  81      * this will be the original desktop resolution. In case of d3d7 this will be a NOP because ddraw sets the resolution
  82      * before starting up Direct3D, thus orig_width and orig_height will be equal to the modes in the presentation params
  83      */
  84     if (!This->presentParms.Windowed && This->presentParms.AutoRestoreDisplayMode)
  85     {
  86         mode.Width = This->orig_width;
  87         mode.Height = This->orig_height;
  88         mode.RefreshRate = 0;
  89         mode.Format = This->orig_fmt;
  90         IWineD3DDevice_SetDisplayMode((IWineD3DDevice *)This->device, 0, &mode);
  91     }
  92
  93     HeapFree(GetProcessHeap(), 0, This->context);
  94     HeapFree(GetProcessHeap(), 0, This);
  95 }
  96
  97 /* A GL context is provided by the caller */
  98 static void swapchain_blit(IWineD3DSwapChainImpl *This, struct wined3d_context *context,
  99         const RECT *src_rect, const RECT *dst_rect)
 100 {
 101     IWineD3DDeviceImpl *device = This->device;
 102     IWineD3DSurfaceImpl *backbuffer = This->back_buffers[0];
 103     UINT src_w = src_rect->right - src_rect->left;
 104     UINT src_h = src_rect->bottom - src_rect->top;
 105     GLenum gl_filter;
 106     const struct wined3d_gl_info *gl_info = context->gl_info;
 107     RECT win_rect;
 108     UINT win_h;
 109
 110     TRACE("swapchain %p, context %p, src_rect %s, dst_rect %s.\n",
 111             This, context, wine_dbgstr_rect(src_rect), wine_dbgstr_rect(dst_rect));
 112
 113     if (src_w == dst_rect->right - dst_rect->left && src_h == dst_rect->bottom - dst_rect->top)
 114         gl_filter = GL_NEAREST;
 115     else
 116         gl_filter = GL_LINEAR;
 117
 118     GetClientRect(This->win_handle, &win_rect);
 119     win_h = win_rect.bottom - win_rect.top;
 120
 121     if (gl_info->fbo_ops.glBlitFramebuffer && is_identity_fixup(backbuffer->resource.format->color_fixup))
 122     {
 123         ENTER_GL();
 124         context_apply_fbo_state_blit(context, GL_READ_FRAMEBUFFER, backbuffer, NULL, SFLAG_INTEXTURE);
 125         glReadBuffer(GL_COLOR_ATTACHMENT0);
 126
 127         context_bind_fbo(context, GL_DRAW_FRAMEBUFFER, NULL);
 128         context_set_draw_buffer(context, GL_BACK);
 129
 130         glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
 131         IWineD3DDeviceImpl_MarkStateDirty(device, STATE_RENDER(WINED3DRS_COLORWRITEENABLE));
 132         IWineD3DDeviceImpl_MarkStateDirty(device, STATE_RENDER(WINED3DRS_COLORWRITEENABLE1));
 133         IWineD3DDeviceImpl_MarkStateDirty(device, STATE_RENDER(WINED3DRS_COLORWRITEENABLE2));
 134         IWineD3DDeviceImpl_MarkStateDirty(device, STATE_RENDER(WINED3DRS_COLORWRITEENABLE3));
 135
 136         glDisable(GL_SCISSOR_TEST);
 137         IWineD3DDeviceImpl_MarkStateDirty(This->device, STATE_RENDER(WINED3DRS_SCISSORTESTENABLE));
 138
 139         /* Note that the texture is upside down */
 140         gl_info->fbo_ops.glBlitFramebuffer(src_rect->left, src_rect->top, src_rect->right, src_rect->bottom,
 141                 dst_rect->left, win_h - dst_rect->top, dst_rect->right, win_h - dst_rect->bottom,
 142                 GL_COLOR_BUFFER_BIT, gl_filter);
 143         checkGLcall("Swapchain present blit(EXT_framebuffer_blit)\n");
 144         LEAVE_GL();
 145     }
 146     else
 147     {
 148         struct wined3d_context *context2;
 149         float tex_left = src_rect->left;
 150         float tex_top = src_rect->top;
 151         float tex_right = src_rect->right;
 152         float tex_bottom = src_rect->bottom;
 153
 154         context2 = context_acquire(This->device, This->back_buffers[0]);
 155         context_apply_blit_state(context2, device);
 156
 157         if (backbuffer->flags & SFLAG_NORMCOORD)
 158         {
 159             tex_left /= src_w;
 160             tex_right /= src_w;
 161             tex_top /= src_h;
 162             tex_bottom /= src_h;
 163         }
 164
 165         if (is_complex_fixup(backbuffer->resource.format->color_fixup))
 166             gl_filter = GL_NEAREST;
 167
 168         ENTER_GL();
 169         context_bind_fbo(context2, GL_FRAMEBUFFER, NULL);
 170
 171         /* Set up the texture. The surface is not in a IWineD3D*Texture container,
 172          * so there are no d3d texture settings to dirtify
 173          */
 174         device->blitter->set_shader(device->blit_priv, context2->gl_info, backbuffer);
 175         glTexParameteri(backbuffer->texture_target, GL_TEXTURE_MIN_FILTER, gl_filter);
 176         glTexParameteri(backbuffer->texture_target, GL_TEXTURE_MAG_FILTER, gl_filter);
 177
 178         context_set_draw_buffer(context, GL_BACK);
 179
 180         /* Set the viewport to the destination rectandle, disable any projection
 181          * transformation set up by context_apply_blit_state(), and draw a
 182          * (-1,-1)-(1,1) quad.
 183          *
 184          * Back up viewport and matrix to avoid breaking last_was_blit
 185          *
 186          * Note that context_apply_blit_state() set up viewport and ortho to
 187          * match the surface size - we want the GL drawable(=window) size. */
 188         glPushAttrib(GL_VIEWPORT_BIT);
 189         glViewport(dst_rect->left, win_h - dst_rect->bottom, dst_rect->right, win_h - dst_rect->top);
 190         glMatrixMode(GL_PROJECTION);
 191         glPushMatrix();
 192         glLoadIdentity();
 193
 194         glBegin(GL_QUADS);
 195             /* bottom left */
 196             glTexCoord2f(tex_left, tex_bottom);
 197             glVertex2i(-1, -1);
 198
 199             /* top left */
 200             glTexCoord2f(tex_left, tex_top);
 201             glVertex2i(-1, 1);
 202
 203             /* top right */
 204             glTexCoord2f(tex_right, tex_top);
 205             glVertex2i(1, 1);
 206
 207             /* bottom right */
 208             glTexCoord2f(tex_right, tex_bottom);
 209             glVertex2i(1, -1);
 210         glEnd();
 211
 212         glPopMatrix();
 213         glPopAttrib();
 214
 215         device->blitter->unset_shader(context->gl_info);
 216         checkGLcall("Swapchain present blit(manual)\n");
 217         LEAVE_GL();
 218
 219         context_release(context2);
 220     }
 221 }
 222
 223 static HRESULT WINAPI IWineD3DSwapChainImpl_Present(IWineD3DSwapChain *iface,
 224         const RECT *pSourceRect, const RECT *pDestRect, HWND hDestWindowOverride,
 225         const RGNDATA *pDirtyRegion, DWORD flags)
 226 {
 227     IWineD3DSwapChainImpl *This = (IWineD3DSwapChainImpl *)iface;
 228     const struct wined3d_gl_info *gl_info;
 229     struct wined3d_context *context;
 230     RECT src_rect, dst_rect;
 231     BOOL render_to_fbo;
 232     unsigned int sync;
 233     int retval;
 234
 235     IWineD3DSwapChain_SetDestWindowOverride(iface, hDestWindowOverride);
 236
 237     context = context_acquire(This->device, This->back_buffers[0]);
 238     if (!context->valid)
 239     {
 240         context_release(context);
 241         WARN("Invalid context, skipping present.\n");
 242         return WINED3D_OK;
 243     }
 244
 245     gl_info = context->gl_info;
 246
 247     /* Render the cursor onto the back buffer, using our nifty directdraw blitting code :-) */
 248     if (This->device->bCursorVisible && This->device->cursorTexture)
 249     {
 250         IWineD3DSurfaceImpl cursor;
 251         RECT destRect =
 252         {
 253             This->device->xScreenSpace - This->device->xHotSpot,
 254             This->device->yScreenSpace - This->device->yHotSpot,
 255             This->device->xScreenSpace + This->device->cursorWidth - This->device->xHotSpot,
 256             This->device->yScreenSpace + This->device->cursorHeight - This->device->yHotSpot,
 257         };
 258         TRACE("Rendering the cursor. Creating fake surface at %p\n", &cursor);
 259         /* Build a fake surface to call the Blitting code. It is not possible to use the interface passed by
 260          * the application because we are only supposed to copy the information out. Using a fake surface
 261          * allows to use the Blitting engine and avoid copying the whole texture -> render target blitting code.
 262          */
 263         memset(&cursor, 0, sizeof(cursor));
 264         cursor.lpVtbl = &IWineD3DSurface_Vtbl;
 265         cursor.resource.ref = 1;
 266         cursor.resource.device = This->device;
 267         cursor.resource.pool = WINED3DPOOL_SCRATCH;
 268         cursor.resource.format = wined3d_get_format(gl_info, WINED3DFMT_B8G8R8A8_UNORM);
 269         cursor.resource.resourceType = WINED3DRTYPE_SURFACE;
 270         cursor.texture_name = This->device->cursorTexture;
 271         cursor.texture_target = GL_TEXTURE_2D;
 272         cursor.texture_level = 0;
 273         cursor.currentDesc.Width = This->device->cursorWidth;
 274         cursor.currentDesc.Height = This->device->cursorHeight;
 275         /* The cursor must have pow2 sizes */
 276         cursor.pow2Width = cursor.currentDesc.Width;
 277         cursor.pow2Height = cursor.currentDesc.Height;
 278         /* The surface is in the texture */
 279         cursor.flags |= SFLAG_INTEXTURE;
 280         /* DDBLT_KEYSRC will cause BltOverride to enable the alpha test with GL_NOTEQUAL, 0.0,
 281          * which is exactly what we want :-)
 282          */
 283         if (This->presentParms.Windowed) {
 284             MapWindowPoints(NULL, This->win_handle, (LPPOINT)&destRect, 2);
 285         }
 286         IWineD3DSurface_Blt((IWineD3DSurface *)This->back_buffers[0], &destRect, (IWineD3DSurface *)&cursor,
 287                 NULL, WINEDDBLT_KEYSRC, NULL, WINED3DTEXF_POINT);
 288     }
 289
 290     if (This->device->logo_surface)
 291     {
 292         /* Blit the logo into the upper left corner of the drawable. */
 293         IWineD3DSurface_BltFast((IWineD3DSurface *)This->back_buffers[0], 0, 0,
 294                 This->device->logo_surface, NULL, WINEDDBLTFAST_SRCCOLORKEY);
 295     }
 296
 297     TRACE("Presenting HDC %p.\n", context->hdc);
 298
 299     render_to_fbo = This->render_to_fbo;
 300
 301     if (pSourceRect)
 302     {
 303         src_rect = *pSourceRect;
 304         if (!render_to_fbo && (src_rect.left || src_rect.top
 305                 || src_rect.right != This->presentParms.BackBufferWidth
 306                 || src_rect.bottom != This->presentParms.BackBufferHeight))
 307         {
 308             render_to_fbo = TRUE;
 309         }
 310     }
 311     else
 312     {
 313         src_rect.left = 0;
 314         src_rect.top = 0;
 315         src_rect.right = This->presentParms.BackBufferWidth;
 316         src_rect.bottom = This->presentParms.BackBufferHeight;
 317     }
 318
 319     if (pDestRect) dst_rect = *pDestRect;
 320     else GetClientRect(This->win_handle, &dst_rect);
 321
 322     if (!render_to_fbo && (dst_rect.left || dst_rect.top
 323             || dst_rect.right != This->presentParms.BackBufferWidth
 324             || dst_rect.bottom != This->presentParms.BackBufferHeight))
 325     {
 326         render_to_fbo = TRUE;
 327     }
 328
 329     /* Rendering to a window of different size, presenting partial rectangles,
 330      * or rendering to a different window needs help from FBO_blit or a textured
 331      * draw. Render the swapchain to a FBO in the future.
 332      *
 333      * Note that FBO_blit from the backbuffer to the frontbuffer cannot solve
 334      * all these issues - this fails if the window is smaller than the backbuffer.
 335      */
 336     if (!This->render_to_fbo && render_to_fbo && wined3d_settings.offscreen_rendering_mode == ORM_FBO)
 337     {
 338         surface_load_location(This->back_buffers[0], SFLAG_INTEXTURE, NULL);
 339         surface_modify_location(This->back_buffers[0], SFLAG_INDRAWABLE, FALSE);
 340         This->render_to_fbo = TRUE;
 341     }
 342
 343     if(This->render_to_fbo)
 344     {
 345         /* This codepath should only be hit with the COPY swapeffect. Otherwise a backbuffer-
 346          * window size mismatch is impossible(fullscreen) and src and dst rectangles are
 347          * not allowed(they need the COPY swapeffect)
 348          *
 349          * The DISCARD swap effect is ok as well since any backbuffer content is allowed after
 350          * the swap
 351          */
 352         if(This->presentParms.SwapEffect == WINED3DSWAPEFFECT_FLIP )
 353         {
 354             FIXME("Render-to-fbo with WINED3DSWAPEFFECT_FLIP\n");
 355         }
 356
 357         swapchain_blit(This, context, &src_rect, &dst_rect);
 358     }
 359
 360     if (This->num_contexts > 1) wglFinish();
 361     SwapBuffers(context->hdc); /* TODO: cycle through the swapchain buffers */
 362
 363     TRACE("SwapBuffers called, Starting new frame\n");
 364     /* FPS support */
 365     if (TRACE_ON(fps))
 366     {
 367         DWORD time = GetTickCount();
 368         This->frames++;
 369         /* every 1.5 seconds */
 370         if (time - This->prev_time > 1500) {
 371             TRACE_(fps)("%p @ approx %.2ffps\n", This, 1000.0*This->frames/(time - This->prev_time));
 372             This->prev_time = time;
 373             This->frames = 0;
 374         }
 375     }
 376
 377     /* This is disabled, but the code left in for debug purposes.
 378      *
 379      * Since we're allowed to modify the new back buffer on a D3DSWAPEFFECT_DISCARD flip,
 380      * we can clear it with some ugly color to make bad drawing visible and ease debugging.
 381      * The Debug runtime does the same on Windows. However, a few games do not redraw the
 382      * screen properly, like Max Payne 2, which leaves a few pixels undefined.
 383      *
 384      * Tests show that the content of the back buffer after a discard flip is indeed not
 385      * reliable, so no game can depend on the exact content. However, it resembles the
 386      * old contents in some way, for example by showing fragments at other locations. In
 387      * general, the color theme is still intact. So Max payne, which draws rather dark scenes
 388      * gets a dark background image. If we clear it with a bright ugly color, the game's
 389      * bug shows up much more than it does on Windows, and the players see single pixels
 390      * with wrong colors.
 391      * (The Max Payne bug has been confirmed on Windows with the debug runtime)
 392      */
 393     if (FALSE && This->presentParms.SwapEffect == WINED3DSWAPEFFECT_DISCARD) {
 394         TRACE("Clearing the color buffer with cyan color\n");
 395
 396         IWineD3DDevice_Clear((IWineD3DDevice *)This->device, 0, NULL,
 397                 WINED3DCLEAR_TARGET, 0xff00ffff, 1.0f, 0);
 398     }
 399
 400     if (!This->render_to_fbo && ((This->front_buffer->flags & SFLAG_INSYSMEM)
 401             || (This->back_buffers[0]->flags & SFLAG_INSYSMEM)))
 402     {
 403         /* Both memory copies of the surfaces are ok, flip them around too instead of dirtifying
 404          * Doesn't work with render_to_fbo because we're not flipping
 405          */
 406         IWineD3DSurfaceImpl *front = This->front_buffer;
 407         IWineD3DSurfaceImpl *back = This->back_buffers[0];
 408
 409         if(front->resource.size == back->resource.size) {
 410             DWORD fbflags;
 411             flip_surface(front, back);
 412
 413             /* Tell the front buffer surface that is has been modified. However,
 414              * the other locations were preserved during that, so keep the flags.
 415              * This serves to update the emulated overlay, if any. */
 416             fbflags = front->flags;
 417             surface_modify_location(front, SFLAG_INDRAWABLE, TRUE);
 418             front->flags = fbflags;
 419         }
 420         else
 421         {
 422             surface_modify_location(front, SFLAG_INDRAWABLE, TRUE);
 423             surface_modify_location(back, SFLAG_INDRAWABLE, TRUE);
 424         }
 425     }
 426     else
 427     {
 428         surface_modify_location(This->front_buffer, 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         {
 436             surface_modify_location(This->back_buffers[0], SFLAG_INDRAWABLE, TRUE);
 437         }
 438     }
 439
 440     if (This->device->depth_stencil)
 441     {
 442         if (This->presentParms.Flags & WINED3DPRESENTFLAG_DISCARD_DEPTHSTENCIL
 443                 || This->device->depth_stencil->flags & SFLAG_DISCARD)
 444         {
 445             surface_modify_ds_location(This->device->depth_stencil, SFLAG_DS_DISCARDED,
 446                     This->device->depth_stencil->currentDesc.Width,
 447                     This->device->depth_stencil->currentDesc.Height);
 448             if (This->device->depth_stencil == This->device->onscreen_depth_stencil)
 449             {
 450                 IWineD3DSurface_Release((IWineD3DSurface *)This->device->onscreen_depth_stencil);
 451                 This->device->onscreen_depth_stencil = NULL;
 452             }
 453         }
 454     }
 455
 456     if (This->presentParms.PresentationInterval != WINED3DPRESENT_INTERVAL_IMMEDIATE
 457             && gl_info->supported[SGI_VIDEO_SYNC])
 458     {
 459         if ((retval = GL_EXTCALL(glXGetVideoSyncSGI(&sync))))
 460             ERR("glXGetVideoSyncSGI failed(retval = %d\n", retval);
 461
 462         switch(This->presentParms.PresentationInterval) {
 463             case WINED3DPRESENT_INTERVAL_DEFAULT:
 464             case WINED3DPRESENT_INTERVAL_ONE:
 465                 if(sync <= This->vSyncCounter) {
 466                     retval = GL_EXTCALL(glXWaitVideoSyncSGI(1, 0, &This->vSyncCounter));
 467                 } else {
 468                     This->vSyncCounter = sync;
 469                 }
 470                 break;
 471             case WINED3DPRESENT_INTERVAL_TWO:
 472                 if(sync <= This->vSyncCounter + 1) {
 473                     retval = GL_EXTCALL(glXWaitVideoSyncSGI(2, This->vSyncCounter & 0x1, &This->vSyncCounter));
 474                 } else {
 475                     This->vSyncCounter = sync;
 476                 }
 477                 break;
 478             case WINED3DPRESENT_INTERVAL_THREE:
 479                 if(sync <= This->vSyncCounter + 2) {
 480                     retval = GL_EXTCALL(glXWaitVideoSyncSGI(3, This->vSyncCounter % 0x3, &This->vSyncCounter));
 481                 } else {
 482                     This->vSyncCounter = sync;
 483                 }
 484                 break;
 485             case WINED3DPRESENT_INTERVAL_FOUR:
 486                 if(sync <= This->vSyncCounter + 3) {
 487                     retval = GL_EXTCALL(glXWaitVideoSyncSGI(4, This->vSyncCounter & 0x3, &This->vSyncCounter));
 488                 } else {
 489                     This->vSyncCounter = sync;
 490                 }
 491                 break;
 492             default:
 493                 FIXME("Unknown presentation interval %08x\n", This->presentParms.PresentationInterval);
 494         }
 495     }
 496
 497     context_release(context);
 498
 499     TRACE("returning\n");
 500     return WINED3D_OK;
 501 }
 502
 503 static HRESULT WINAPI IWineD3DSwapChainImpl_SetDestWindowOverride(IWineD3DSwapChain *iface, HWND window)
 504 {
 505     IWineD3DSwapChainImpl *swapchain = (IWineD3DSwapChainImpl *)iface;
 506
 507     if (!window) window = swapchain->device_window;
 508     if (window == swapchain->win_handle) return WINED3D_OK;
 509
 510     TRACE("Setting swapchain %p window from %p to %p\n", swapchain, swapchain->win_handle, window);
 511     swapchain->win_handle = window;
 512
 513     return WINED3D_OK;
 514 }
 515
 516 static const IWineD3DSwapChainVtbl IWineD3DSwapChain_Vtbl =
 517 {
 518     /* IUnknown */
 519     IWineD3DBaseSwapChainImpl_QueryInterface,
 520     IWineD3DBaseSwapChainImpl_AddRef,
 521     IWineD3DBaseSwapChainImpl_Release,
 522     /* IWineD3DSwapChain */
 523     IWineD3DBaseSwapChainImpl_GetParent,
 524     IWineD3DSwapChainImpl_Destroy,
 525     IWineD3DBaseSwapChainImpl_GetDevice,
 526     IWineD3DSwapChainImpl_Present,
 527     IWineD3DSwapChainImpl_SetDestWindowOverride,
 528     IWineD3DBaseSwapChainImpl_GetFrontBufferData,
 529     IWineD3DBaseSwapChainImpl_GetBackBuffer,
 530     IWineD3DBaseSwapChainImpl_GetRasterStatus,
 531     IWineD3DBaseSwapChainImpl_GetDisplayMode,
 532     IWineD3DBaseSwapChainImpl_GetPresentParameters,
 533     IWineD3DBaseSwapChainImpl_SetGammaRamp,
 534     IWineD3DBaseSwapChainImpl_GetGammaRamp
 535 };
 536
 537 /* Do not call while under the GL lock. */
 538 HRESULT swapchain_init(IWineD3DSwapChainImpl *swapchain, WINED3DSURFTYPE surface_type,
 539         IWineD3DDeviceImpl *device, WINED3DPRESENT_PARAMETERS *present_parameters, void *parent)
 540 {
 541     const struct wined3d_adapter *adapter = device->adapter;
 542     const struct wined3d_format *format;
 543     BOOL displaymode_set = FALSE;
 544     WINED3DDISPLAYMODE mode;
 545     RECT client_rect;
 546     HWND window;
 547     HRESULT hr;
 548     UINT i;
 549
 550     if (present_parameters->BackBufferCount > WINED3DPRESENT_BACK_BUFFER_MAX)
 551     {
 552         FIXME("The application requested %u back buffers, this is not supported.\n",
 553                 present_parameters->BackBufferCount);
 554         return WINED3DERR_INVALIDCALL;
 555     }
 556
 557     if (present_parameters->BackBufferCount > 1)
 558     {
 559         FIXME("The application requested more than one back buffer, this is not properly supported.\n"
 560                 "Please configure the application to use double buffering (1 back buffer) if possible.\n");
 561     }
 562
 563     switch (surface_type)
 564     {
 565         case SURFACE_GDI:
 566             swapchain->lpVtbl = &IWineGDISwapChain_Vtbl;
 567             break;
 568
 569         case SURFACE_OPENGL:
 570             swapchain->lpVtbl = &IWineD3DSwapChain_Vtbl;
 571             break;
 572
 573         case SURFACE_UNKNOWN:
 574             FIXME("Caller tried to create a SURFACE_UNKNOWN swapchain.\n");
 575             return WINED3DERR_INVALIDCALL;
 576     }
 577
 578     window = present_parameters->hDeviceWindow ? present_parameters->hDeviceWindow : device->createParms.hFocusWindow;
 579
 580     swapchain->device = device;
 581     swapchain->parent = parent;
 582     swapchain->ref = 1;
 583     swapchain->win_handle = window;
 584     swapchain->device_window = window;
 585
 586     IWineD3D_GetAdapterDisplayMode(device->wined3d, adapter->ordinal, &mode);
 587     swapchain->orig_width = mode.Width;
 588     swapchain->orig_height = mode.Height;
 589     swapchain->orig_fmt = mode.Format;
 590     format = wined3d_get_format(&adapter->gl_info, mode.Format);
 591
 592     GetClientRect(window, &client_rect);
 593     if (present_parameters->Windowed
 594             && (!present_parameters->BackBufferWidth || !present_parameters->BackBufferHeight
 595             || present_parameters->BackBufferFormat == WINED3DFMT_UNKNOWN))
 596     {
 597
 598         if (!present_parameters->BackBufferWidth)
 599         {
 600             present_parameters->BackBufferWidth = client_rect.right;
 601             TRACE("Updating width to %u.\n", present_parameters->BackBufferWidth);
 602         }
 603
 604         if (!present_parameters->BackBufferHeight)
 605         {
 606             present_parameters->BackBufferHeight = client_rect.bottom;
 607             TRACE("Updating height to %u.\n", present_parameters->BackBufferHeight);
 608         }
 609
 610         if (present_parameters->BackBufferFormat == WINED3DFMT_UNKNOWN)
 611         {
 612             present_parameters->BackBufferFormat = swapchain->orig_fmt;
 613             TRACE("Updating format to %s.\n", debug_d3dformat(swapchain->orig_fmt));
 614         }
 615     }
 616     swapchain->presentParms = *present_parameters;
 617
 618     if (wined3d_settings.offscreen_rendering_mode == ORM_FBO
 619             && present_parameters->BackBufferCount
 620             && (present_parameters->BackBufferWidth != client_rect.right
 621             || present_parameters->BackBufferHeight != client_rect.bottom))
 622     {
 623         TRACE("Rendering to FBO. Backbuffer %ux%u, window %ux%u.\n",
 624                 present_parameters->BackBufferWidth,
 625                 present_parameters->BackBufferHeight,
 626                 client_rect.right, client_rect.bottom);
 627         swapchain->render_to_fbo = TRUE;
 628     }
 629
 630     TRACE("Creating front buffer.\n");
 631     hr = IWineD3DDeviceParent_CreateRenderTarget(device->device_parent, parent,
 632             swapchain->presentParms.BackBufferWidth, swapchain->presentParms.BackBufferHeight,
 633             swapchain->presentParms.BackBufferFormat, swapchain->presentParms.MultiSampleType,
 634             swapchain->presentParms.MultiSampleQuality, TRUE /* Lockable */,
 635             (IWineD3DSurface **)&swapchain->front_buffer);
 636     if (FAILED(hr))
 637     {
 638         WARN("Failed to create front buffer, hr %#x.\n", hr);
 639         goto err;
 640     }
 641
 642     surface_set_container(swapchain->front_buffer, WINED3D_CONTAINER_SWAPCHAIN, (IWineD3DBase *)swapchain);
 643     if (surface_type == SURFACE_OPENGL)
 644     {
 645         surface_modify_location(swapchain->front_buffer, SFLAG_INDRAWABLE, TRUE);
 646     }
 647
 648     /* MSDN says we're only allowed a single fullscreen swapchain per device,
 649      * so we should really check to see if there is a fullscreen swapchain
 650      * already. Does a single head count as full screen? */
 651
 652     if (!present_parameters->Windowed)
 653     {
 654         WINED3DDISPLAYMODE mode;
 655
 656         /* Change the display settings */
 657         mode.Width = present_parameters->BackBufferWidth;
 658         mode.Height = present_parameters->BackBufferHeight;
 659         mode.Format = present_parameters->BackBufferFormat;
 660         mode.RefreshRate = present_parameters->FullScreen_RefreshRateInHz;
 661
 662         hr = IWineD3DDevice_SetDisplayMode((IWineD3DDevice *)device, 0, &mode);
 663         if (FAILED(hr))
 664         {
 665             WARN("Failed to set display mode, hr %#x.\n", hr);
 666             goto err;
 667         }
 668         displaymode_set = TRUE;
 669     }
 670
 671     swapchain->context = HeapAlloc(GetProcessHeap(), 0, sizeof(swapchain->context));
 672     if (!swapchain->context)
 673     {
 674         ERR("Failed to create the context array.\n");
 675         hr = E_OUTOFMEMORY;
 676         goto err;
 677     }
 678     swapchain->num_contexts = 1;
 679
 680     if (surface_type == SURFACE_OPENGL)
 681     {
 682         static const enum wined3d_format_id formats[] =
 683         {
 684             WINED3DFMT_D24_UNORM_S8_UINT,
 685             WINED3DFMT_D32_UNORM,
 686             WINED3DFMT_R24_UNORM_X8_TYPELESS,
 687             WINED3DFMT_D16_UNORM,
 688             WINED3DFMT_S1_UINT_D15_UNORM
 689         };
 690
 691         const struct wined3d_gl_info *gl_info = &device->adapter->gl_info;
 692
 693         /* In WGL both color, depth and stencil are features of a pixel format. In case of D3D they are separate.
 694          * You are able to add a depth + stencil surface at a later stage when you need it.
 695          * In order to support this properly in WineD3D we need the ability to recreate the opengl context and
 696          * drawable when this is required. This is very tricky as we need to reapply ALL opengl states for the new
 697          * context, need torecreate shaders, textures and other resources.
 698          *
 699          * The context manager already takes care of the state problem and for the other tasks code from Reset
 700          * can be used. These changes are way to risky during the 1.0 code freeze which is taking place right now.
 701          * Likely a lot of other new bugs will be exposed. For that reason request a depth stencil surface all the
 702          * time. It can cause a slight performance hit but fixes a lot of regressions. A fixme reminds of that this
 703          * issue needs to be fixed. */
 704         for (i = 0; i < (sizeof(formats) / sizeof(*formats)); i++)
 705         {
 706             swapchain->ds_format = wined3d_get_format(gl_info, formats[i]);
 707             swapchain->context[0] = context_create(swapchain, swapchain->front_buffer, swapchain->ds_format);
 708             if (swapchain->context[0]) break;
 709             TRACE("Depth stencil format %s is not supported, trying next format\n",
 710                   debug_d3dformat(formats[i]));
 711         }
 712
 713         if (!swapchain->context[0])
 714         {
 715             WARN("Failed to create context.\n");
 716             hr = WINED3DERR_NOTAVAILABLE;
 717             goto err;
 718         }
 719
 720         if (!present_parameters->EnableAutoDepthStencil
 721                 || swapchain->presentParms.AutoDepthStencilFormat != swapchain->ds_format->id)
 722         {
 723             FIXME("Add OpenGL context recreation support to context_validate_onscreen_formats\n");
 724         }
 725         context_release(swapchain->context[0]);
 726     }
 727     else
 728     {
 729         swapchain->context[0] = NULL;
 730     }
 731
 732     if (swapchain->presentParms.BackBufferCount > 0)
 733     {
 734         swapchain->back_buffers = HeapAlloc(GetProcessHeap(), 0,
 735                 sizeof(*swapchain->back_buffers) * swapchain->presentParms.BackBufferCount);
 736         if (!swapchain->back_buffers)
 737         {
 738             ERR("Failed to allocate backbuffer array memory.\n");
 739             hr = E_OUTOFMEMORY;
 740             goto err;
 741         }
 742
 743         for (i = 0; i < swapchain->presentParms.BackBufferCount; ++i)
 744         {
 745             TRACE("Creating back buffer %u.\n", i);
 746             hr = IWineD3DDeviceParent_CreateRenderTarget(device->device_parent, parent,
 747                     swapchain->presentParms.BackBufferWidth, swapchain->presentParms.BackBufferHeight,
 748                     swapchain->presentParms.BackBufferFormat, swapchain->presentParms.MultiSampleType,
 749                     swapchain->presentParms.MultiSampleQuality, TRUE /* Lockable */,
 750                     (IWineD3DSurface **)&swapchain->back_buffers[i]);
 751             if (FAILED(hr))
 752             {
 753                 WARN("Failed to create back buffer %u, hr %#x.\n", i, hr);
 754                 goto err;
 755             }
 756
 757             surface_set_container(swapchain->back_buffers[i], WINED3D_CONTAINER_SWAPCHAIN, (IWineD3DBase *)swapchain);
 758         }
 759     }
 760
 761     /* Swapchains share the depth/stencil buffer, so only create a single depthstencil surface. */
 762     if (present_parameters->EnableAutoDepthStencil && surface_type == SURFACE_OPENGL)
 763     {
 764         TRACE("Creating depth/stencil buffer.\n");
 765         if (!device->auto_depth_stencil)
 766         {
 767             hr = IWineD3DDeviceParent_CreateDepthStencilSurface(device->device_parent,
 768                     swapchain->presentParms.BackBufferWidth, swapchain->presentParms.BackBufferHeight,
 769                     swapchain->presentParms.AutoDepthStencilFormat, swapchain->presentParms.MultiSampleType,
 770                     swapchain->presentParms.MultiSampleQuality, FALSE /* FIXME: Discard */,
 771                     (IWineD3DSurface **)&device->auto_depth_stencil);
 772             if (FAILED(hr))
 773             {
 774                 WARN("Failed to create the auto depth stencil, hr %#x.\n", hr);
 775                 goto err;
 776             }
 777
 778             surface_set_container(device->auto_depth_stencil, WINED3D_CONTAINER_NONE, NULL);
 779         }
 780     }
 781
 782     IWineD3DSwapChain_GetGammaRamp((IWineD3DSwapChain *)swapchain, &swapchain->orig_gamma);
 783
 784     return WINED3D_OK;
 785
 786 err:
 787     if (displaymode_set)
 788     {
 789         DEVMODEW devmode;
 790
 791         ClipCursor(NULL);
 792
 793         /* Change the display settings */
 794         memset(&devmode, 0, sizeof(devmode));
 795         devmode.dmSize = sizeof(devmode);
 796         devmode.dmFields = DM_BITSPERPEL | DM_PELSWIDTH | DM_PELSHEIGHT;
 797         devmode.dmBitsPerPel = format->byte_count * CHAR_BIT;
 798         devmode.dmPelsWidth = swapchain->orig_width;
 799         devmode.dmPelsHeight = swapchain->orig_height;
 800         ChangeDisplaySettingsExW(adapter->DeviceName, &devmode, NULL, CDS_FULLSCREEN, NULL);
 801     }
 802
 803     if (swapchain->back_buffers)
 804     {
 805         for (i = 0; i < swapchain->presentParms.BackBufferCount; ++i)
 806         {
 807             if (swapchain->back_buffers[i]) IWineD3DSurface_Release((IWineD3DSurface *)swapchain->back_buffers[i]);
 808         }
 809         HeapFree(GetProcessHeap(), 0, swapchain->back_buffers);
 810     }
 811
 812     if (swapchain->context)
 813     {
 814         if (swapchain->context[0])
 815         {
 816             context_release(swapchain->context[0]);
 817             context_destroy(device, swapchain->context[0]);
 818             swapchain->num_contexts = 0;
 819         }
 820         HeapFree(GetProcessHeap(), 0, swapchain->context);
 821     }
 822
 823     if (swapchain->front_buffer) IWineD3DSurface_Release((IWineD3DSurface *)swapchain->front_buffer);
 824
 825     return hr;
 826 }
 827
 828 /* Do not call while under the GL lock. */
 829 struct wined3d_context *swapchain_create_context_for_thread(IWineD3DSwapChain *iface)
 830 {
 831     IWineD3DSwapChainImpl *This = (IWineD3DSwapChainImpl *) iface;
 832     struct wined3d_context **newArray;
 833     struct wined3d_context *ctx;
 834
 835     TRACE("Creating a new context for swapchain %p, thread %d\n", This, GetCurrentThreadId());
 836
 837     if (!(ctx = context_create(This, This->front_buffer, This->ds_format)))
 838     {
 839         ERR("Failed to create a new context for the swapchain\n");
 840         return NULL;
 841     }
 842     context_release(ctx);
 843
 844     newArray = HeapAlloc(GetProcessHeap(), 0, sizeof(*newArray) * (This->num_contexts + 1));
 845     if(!newArray) {
 846         ERR("Out of memory when trying to allocate a new context array\n");
 847         context_destroy(This->device, ctx);
 848         return NULL;
 849     }
 850     memcpy(newArray, This->context, sizeof(*newArray) * This->num_contexts);
 851     HeapFree(GetProcessHeap(), 0, This->context);
 852     newArray[This->num_contexts] = ctx;
 853     This->context = newArray;
 854     This->num_contexts++;
 855
 856     TRACE("Returning context %p\n", ctx);
 857     return ctx;
 858 }
 859
 860 void get_drawable_size_swapchain(struct wined3d_context *context, UINT *width, UINT *height)
 861 {
 862     /* The drawable size of an onscreen drawable is the surface size.
 863      * (Actually: The window size, but the surface is created in window size) */
 864     *width = context->current_rt->currentDesc.Width;
 865     *height = context->current_rt->currentDesc.Height;
 866 }