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 /* 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
 233     IWineD3DSwapChain_SetDestWindowOverride(iface, hDestWindowOverride);
 234
 235     context = context_acquire(This->device, This->back_buffers[0]);
 236     if (!context->valid)
 237     {
 238         context_release(context);
 239         WARN("Invalid context, skipping present.\n");
 240         return WINED3D_OK;
 241     }
 242
 243     gl_info = context->gl_info;
 244
 245     /* Render the cursor onto the back buffer, using our nifty directdraw blitting code :-) */
 246     if (This->device->bCursorVisible && This->device->cursorTexture)
 247     {
 248         IWineD3DSurfaceImpl cursor;
 249         RECT destRect =
 250         {
 251             This->device->xScreenSpace - This->device->xHotSpot,
 252             This->device->yScreenSpace - This->device->yHotSpot,
 253             This->device->xScreenSpace + This->device->cursorWidth - This->device->xHotSpot,
 254             This->device->yScreenSpace + This->device->cursorHeight - This->device->yHotSpot,
 255         };
 256         TRACE("Rendering the cursor. Creating fake surface at %p\n", &cursor);
 257         /* Build a fake surface to call the Blitting code. It is not possible to use the interface passed by
 258          * the application because we are only supposed to copy the information out. Using a fake surface
 259          * allows to use the Blitting engine and avoid copying the whole texture -> render target blitting code.
 260          */
 261         memset(&cursor, 0, sizeof(cursor));
 262         cursor.lpVtbl = &IWineD3DSurface_Vtbl;
 263         cursor.resource.ref = 1;
 264         cursor.resource.device = This->device;
 265         cursor.resource.pool = WINED3DPOOL_SCRATCH;
 266         cursor.resource.format = wined3d_get_format(gl_info, WINED3DFMT_B8G8R8A8_UNORM);
 267         cursor.resource.resourceType = WINED3DRTYPE_SURFACE;
 268         cursor.texture_name = This->device->cursorTexture;
 269         cursor.texture_target = GL_TEXTURE_2D;
 270         cursor.texture_level = 0;
 271         cursor.currentDesc.Width = This->device->cursorWidth;
 272         cursor.currentDesc.Height = This->device->cursorHeight;
 273         /* The cursor must have pow2 sizes */
 274         cursor.pow2Width = cursor.currentDesc.Width;
 275         cursor.pow2Height = cursor.currentDesc.Height;
 276         /* The surface is in the texture */
 277         cursor.flags |= SFLAG_INTEXTURE;
 278         /* DDBLT_KEYSRC will cause BltOverride to enable the alpha test with GL_NOTEQUAL, 0.0,
 279          * which is exactly what we want :-)
 280          */
 281         if (This->presentParms.Windowed) {
 282             MapWindowPoints(NULL, This->win_handle, (LPPOINT)&destRect, 2);
 283         }
 284         IWineD3DSurface_Blt((IWineD3DSurface *)This->back_buffers[0], &destRect, (IWineD3DSurface *)&cursor,
 285                 NULL, WINEDDBLT_KEYSRC, NULL, WINED3DTEXF_POINT);
 286     }
 287
 288     if (This->device->logo_surface)
 289     {
 290         /* Blit the logo into the upper left corner of the drawable. */
 291         IWineD3DSurface_BltFast((IWineD3DSurface *)This->back_buffers[0], 0, 0,
 292                 This->device->logo_surface, NULL, WINEDDBLTFAST_SRCCOLORKEY);
 293     }
 294
 295     TRACE("Presenting HDC %p.\n", context->hdc);
 296
 297     render_to_fbo = This->render_to_fbo;
 298
 299     if (pSourceRect)
 300     {
 301         src_rect = *pSourceRect;
 302         if (!render_to_fbo && (src_rect.left || src_rect.top
 303                 || src_rect.right != This->presentParms.BackBufferWidth
 304                 || src_rect.bottom != This->presentParms.BackBufferHeight))
 305         {
 306             render_to_fbo = TRUE;
 307         }
 308     }
 309     else
 310     {
 311         src_rect.left = 0;
 312         src_rect.top = 0;
 313         src_rect.right = This->presentParms.BackBufferWidth;
 314         src_rect.bottom = This->presentParms.BackBufferHeight;
 315     }
 316
 317     if (pDestRect) dst_rect = *pDestRect;
 318     else GetClientRect(This->win_handle, &dst_rect);
 319
 320     if (!render_to_fbo && (dst_rect.left || dst_rect.top
 321             || dst_rect.right != This->presentParms.BackBufferWidth
 322             || dst_rect.bottom != This->presentParms.BackBufferHeight))
 323     {
 324         render_to_fbo = TRUE;
 325     }
 326
 327     /* Rendering to a window of different size, presenting partial rectangles,
 328      * or rendering to a different window needs help from FBO_blit or a textured
 329      * draw. Render the swapchain to a FBO in the future.
 330      *
 331      * Note that FBO_blit from the backbuffer to the frontbuffer cannot solve
 332      * all these issues - this fails if the window is smaller than the backbuffer.
 333      */
 334     if (!This->render_to_fbo && render_to_fbo && wined3d_settings.offscreen_rendering_mode == ORM_FBO)
 335     {
 336         surface_load_location(This->back_buffers[0], SFLAG_INTEXTURE, NULL);
 337         surface_modify_location(This->back_buffers[0], SFLAG_INDRAWABLE, FALSE);
 338         This->render_to_fbo = TRUE;
 339     }
 340
 341     if(This->render_to_fbo)
 342     {
 343         /* This codepath should only be hit with the COPY swapeffect. Otherwise a backbuffer-
 344          * window size mismatch is impossible(fullscreen) and src and dst rectangles are
 345          * not allowed(they need the COPY swapeffect)
 346          *
 347          * The DISCARD swap effect is ok as well since any backbuffer content is allowed after
 348          * the swap
 349          */
 350         if(This->presentParms.SwapEffect == WINED3DSWAPEFFECT_FLIP )
 351         {
 352             FIXME("Render-to-fbo with WINED3DSWAPEFFECT_FLIP\n");
 353         }
 354
 355         swapchain_blit(This, context, &src_rect, &dst_rect);
 356     }
 357
 358     if (This->num_contexts > 1) wglFinish();
 359     SwapBuffers(context->hdc); /* TODO: cycle through the swapchain buffers */
 360
 361     TRACE("SwapBuffers called, Starting new frame\n");
 362     /* FPS support */
 363     if (TRACE_ON(fps))
 364     {
 365         DWORD time = GetTickCount();
 366         This->frames++;
 367         /* every 1.5 seconds */
 368         if (time - This->prev_time > 1500) {
 369             TRACE_(fps)("%p @ approx %.2ffps\n", This, 1000.0*This->frames/(time - This->prev_time));
 370             This->prev_time = time;
 371             This->frames = 0;
 372         }
 373     }
 374
 375     /* This is disabled, but the code left in for debug purposes.
 376      *
 377      * Since we're allowed to modify the new back buffer on a D3DSWAPEFFECT_DISCARD flip,
 378      * we can clear it with some ugly color to make bad drawing visible and ease debugging.
 379      * The Debug runtime does the same on Windows. However, a few games do not redraw the
 380      * screen properly, like Max Payne 2, which leaves a few pixels undefined.
 381      *
 382      * Tests show that the content of the back buffer after a discard flip is indeed not
 383      * reliable, so no game can depend on the exact content. However, it resembles the
 384      * old contents in some way, for example by showing fragments at other locations. In
 385      * general, the color theme is still intact. So Max payne, which draws rather dark scenes
 386      * gets a dark background image. If we clear it with a bright ugly color, the game's
 387      * bug shows up much more than it does on Windows, and the players see single pixels
 388      * with wrong colors.
 389      * (The Max Payne bug has been confirmed on Windows with the debug runtime)
 390      */
 391     if (FALSE && This->presentParms.SwapEffect == WINED3DSWAPEFFECT_DISCARD) {
 392         TRACE("Clearing the color buffer with cyan color\n");
 393
 394         IWineD3DDevice_Clear((IWineD3DDevice *)This->device, 0, NULL,
 395                 WINED3DCLEAR_TARGET, 0xff00ffff, 1.0f, 0);
 396     }
 397
 398     if (!This->render_to_fbo && ((This->front_buffer->flags & SFLAG_INSYSMEM)
 399             || (This->back_buffers[0]->flags & SFLAG_INSYSMEM)))
 400     {
 401         /* Both memory copies of the surfaces are ok, flip them around too instead of dirtifying
 402          * Doesn't work with render_to_fbo because we're not flipping
 403          */
 404         IWineD3DSurfaceImpl *front = This->front_buffer;
 405         IWineD3DSurfaceImpl *back = This->back_buffers[0];
 406
 407         if(front->resource.size == back->resource.size) {
 408             DWORD fbflags;
 409             flip_surface(front, back);
 410
 411             /* Tell the front buffer surface that is has been modified. However,
 412              * the other locations were preserved during that, so keep the flags.
 413              * This serves to update the emulated overlay, if any. */
 414             fbflags = front->flags;
 415             surface_modify_location(front, SFLAG_INDRAWABLE, TRUE);
 416             front->flags = fbflags;
 417         }
 418         else
 419         {
 420             surface_modify_location(front, SFLAG_INDRAWABLE, TRUE);
 421             surface_modify_location(back, SFLAG_INDRAWABLE, TRUE);
 422         }
 423     }
 424     else
 425     {
 426         surface_modify_location(This->front_buffer, 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         {
 434             surface_modify_location(This->back_buffers[0], SFLAG_INDRAWABLE, TRUE);
 435         }
 436     }
 437
 438     if (This->device->depth_stencil)
 439     {
 440         if (This->presentParms.Flags & WINED3DPRESENTFLAG_DISCARD_DEPTHSTENCIL
 441                 || This->device->depth_stencil->flags & SFLAG_DISCARD)
 442         {
 443             surface_modify_ds_location(This->device->depth_stencil, SFLAG_DS_DISCARDED,
 444                     This->device->depth_stencil->currentDesc.Width,
 445                     This->device->depth_stencil->currentDesc.Height);
 446             if (This->device->depth_stencil == This->device->onscreen_depth_stencil)
 447             {
 448                 IWineD3DSurface_Release((IWineD3DSurface *)This->device->onscreen_depth_stencil);
 449                 This->device->onscreen_depth_stencil = NULL;
 450             }
 451         }
 452     }
 453
 454     context_release(context);
 455
 456     TRACE("returning\n");
 457     return WINED3D_OK;
 458 }
 459
 460 static HRESULT WINAPI IWineD3DSwapChainImpl_SetDestWindowOverride(IWineD3DSwapChain *iface, HWND window)
 461 {
 462     IWineD3DSwapChainImpl *swapchain = (IWineD3DSwapChainImpl *)iface;
 463
 464     if (!window) window = swapchain->device_window;
 465     if (window == swapchain->win_handle) return WINED3D_OK;
 466
 467     TRACE("Setting swapchain %p window from %p to %p\n", swapchain, swapchain->win_handle, window);
 468     swapchain->win_handle = window;
 469
 470     return WINED3D_OK;
 471 }
 472
 473 static const IWineD3DSwapChainVtbl IWineD3DSwapChain_Vtbl =
 474 {
 475     /* IUnknown */
 476     IWineD3DBaseSwapChainImpl_QueryInterface,
 477     IWineD3DBaseSwapChainImpl_AddRef,
 478     IWineD3DBaseSwapChainImpl_Release,
 479     /* IWineD3DSwapChain */
 480     IWineD3DBaseSwapChainImpl_GetParent,
 481     IWineD3DSwapChainImpl_Destroy,
 482     IWineD3DBaseSwapChainImpl_GetDevice,
 483     IWineD3DSwapChainImpl_Present,
 484     IWineD3DSwapChainImpl_SetDestWindowOverride,
 485     IWineD3DBaseSwapChainImpl_GetFrontBufferData,
 486     IWineD3DBaseSwapChainImpl_GetBackBuffer,
 487     IWineD3DBaseSwapChainImpl_GetRasterStatus,
 488     IWineD3DBaseSwapChainImpl_GetDisplayMode,
 489     IWineD3DBaseSwapChainImpl_GetPresentParameters,
 490     IWineD3DBaseSwapChainImpl_SetGammaRamp,
 491     IWineD3DBaseSwapChainImpl_GetGammaRamp
 492 };
 493
 494 /* Do not call while under the GL lock. */
 495 HRESULT swapchain_init(IWineD3DSwapChainImpl *swapchain, WINED3DSURFTYPE surface_type,
 496         IWineD3DDeviceImpl *device, WINED3DPRESENT_PARAMETERS *present_parameters, void *parent)
 497 {
 498     const struct wined3d_adapter *adapter = device->adapter;
 499     const struct wined3d_format *format;
 500     BOOL displaymode_set = FALSE;
 501     WINED3DDISPLAYMODE mode;
 502     RECT client_rect;
 503     HWND window;
 504     HRESULT hr;
 505     UINT i;
 506
 507     if (present_parameters->BackBufferCount > WINED3DPRESENT_BACK_BUFFER_MAX)
 508     {
 509         FIXME("The application requested %u back buffers, this is not supported.\n",
 510                 present_parameters->BackBufferCount);
 511         return WINED3DERR_INVALIDCALL;
 512     }
 513
 514     if (present_parameters->BackBufferCount > 1)
 515     {
 516         FIXME("The application requested more than one back buffer, this is not properly supported.\n"
 517                 "Please configure the application to use double buffering (1 back buffer) if possible.\n");
 518     }
 519
 520     switch (surface_type)
 521     {
 522         case SURFACE_GDI:
 523             swapchain->lpVtbl = &IWineGDISwapChain_Vtbl;
 524             break;
 525
 526         case SURFACE_OPENGL:
 527             swapchain->lpVtbl = &IWineD3DSwapChain_Vtbl;
 528             break;
 529
 530         case SURFACE_UNKNOWN:
 531             FIXME("Caller tried to create a SURFACE_UNKNOWN swapchain.\n");
 532             return WINED3DERR_INVALIDCALL;
 533     }
 534
 535     window = present_parameters->hDeviceWindow ? present_parameters->hDeviceWindow : device->createParms.hFocusWindow;
 536
 537     swapchain->device = device;
 538     swapchain->parent = parent;
 539     swapchain->ref = 1;
 540     swapchain->win_handle = window;
 541     swapchain->device_window = window;
 542
 543     wined3d_get_adapter_display_mode(device->wined3d, adapter->ordinal, &mode);
 544     swapchain->orig_width = mode.Width;
 545     swapchain->orig_height = mode.Height;
 546     swapchain->orig_fmt = mode.Format;
 547     format = wined3d_get_format(&adapter->gl_info, mode.Format);
 548
 549     GetClientRect(window, &client_rect);
 550     if (present_parameters->Windowed
 551             && (!present_parameters->BackBufferWidth || !present_parameters->BackBufferHeight
 552             || present_parameters->BackBufferFormat == WINED3DFMT_UNKNOWN))
 553     {
 554
 555         if (!present_parameters->BackBufferWidth)
 556         {
 557             present_parameters->BackBufferWidth = client_rect.right;
 558             TRACE("Updating width to %u.\n", present_parameters->BackBufferWidth);
 559         }
 560
 561         if (!present_parameters->BackBufferHeight)
 562         {
 563             present_parameters->BackBufferHeight = client_rect.bottom;
 564             TRACE("Updating height to %u.\n", present_parameters->BackBufferHeight);
 565         }
 566
 567         if (present_parameters->BackBufferFormat == WINED3DFMT_UNKNOWN)
 568         {
 569             present_parameters->BackBufferFormat = swapchain->orig_fmt;
 570             TRACE("Updating format to %s.\n", debug_d3dformat(swapchain->orig_fmt));
 571         }
 572     }
 573     swapchain->presentParms = *present_parameters;
 574
 575     if (wined3d_settings.offscreen_rendering_mode == ORM_FBO
 576             && present_parameters->BackBufferCount
 577             && (present_parameters->BackBufferWidth != client_rect.right
 578             || present_parameters->BackBufferHeight != client_rect.bottom))
 579     {
 580         TRACE("Rendering to FBO. Backbuffer %ux%u, window %ux%u.\n",
 581                 present_parameters->BackBufferWidth,
 582                 present_parameters->BackBufferHeight,
 583                 client_rect.right, client_rect.bottom);
 584         swapchain->render_to_fbo = TRUE;
 585     }
 586
 587     TRACE("Creating front buffer.\n");
 588     hr = IWineD3DDeviceParent_CreateRenderTarget(device->device_parent, parent,
 589             swapchain->presentParms.BackBufferWidth, swapchain->presentParms.BackBufferHeight,
 590             swapchain->presentParms.BackBufferFormat, swapchain->presentParms.MultiSampleType,
 591             swapchain->presentParms.MultiSampleQuality, TRUE /* Lockable */,
 592             (IWineD3DSurface **)&swapchain->front_buffer);
 593     if (FAILED(hr))
 594     {
 595         WARN("Failed to create front buffer, hr %#x.\n", hr);
 596         goto err;
 597     }
 598
 599     surface_set_container(swapchain->front_buffer, WINED3D_CONTAINER_SWAPCHAIN, (IWineD3DBase *)swapchain);
 600     if (surface_type == SURFACE_OPENGL)
 601     {
 602         surface_modify_location(swapchain->front_buffer, SFLAG_INDRAWABLE, TRUE);
 603     }
 604
 605     /* MSDN says we're only allowed a single fullscreen swapchain per device,
 606      * so we should really check to see if there is a fullscreen swapchain
 607      * already. Does a single head count as full screen? */
 608
 609     if (!present_parameters->Windowed)
 610     {
 611         WINED3DDISPLAYMODE mode;
 612
 613         /* Change the display settings */
 614         mode.Width = present_parameters->BackBufferWidth;
 615         mode.Height = present_parameters->BackBufferHeight;
 616         mode.Format = present_parameters->BackBufferFormat;
 617         mode.RefreshRate = present_parameters->FullScreen_RefreshRateInHz;
 618
 619         hr = IWineD3DDevice_SetDisplayMode((IWineD3DDevice *)device, 0, &mode);
 620         if (FAILED(hr))
 621         {
 622             WARN("Failed to set display mode, hr %#x.\n", hr);
 623             goto err;
 624         }
 625         displaymode_set = TRUE;
 626     }
 627
 628     swapchain->context = HeapAlloc(GetProcessHeap(), 0, sizeof(swapchain->context));
 629     if (!swapchain->context)
 630     {
 631         ERR("Failed to create the context array.\n");
 632         hr = E_OUTOFMEMORY;
 633         goto err;
 634     }
 635     swapchain->num_contexts = 1;
 636
 637     if (surface_type == SURFACE_OPENGL)
 638     {
 639         static const enum wined3d_format_id formats[] =
 640         {
 641             WINED3DFMT_D24_UNORM_S8_UINT,
 642             WINED3DFMT_D32_UNORM,
 643             WINED3DFMT_R24_UNORM_X8_TYPELESS,
 644             WINED3DFMT_D16_UNORM,
 645             WINED3DFMT_S1_UINT_D15_UNORM
 646         };
 647
 648         const struct wined3d_gl_info *gl_info = &device->adapter->gl_info;
 649
 650         /* In WGL both color, depth and stencil are features of a pixel format. In case of D3D they are separate.
 651          * You are able to add a depth + stencil surface at a later stage when you need it.
 652          * In order to support this properly in WineD3D we need the ability to recreate the opengl context and
 653          * drawable when this is required. This is very tricky as we need to reapply ALL opengl states for the new
 654          * context, need torecreate shaders, textures and other resources.
 655          *
 656          * The context manager already takes care of the state problem and for the other tasks code from Reset
 657          * can be used. These changes are way to risky during the 1.0 code freeze which is taking place right now.
 658          * Likely a lot of other new bugs will be exposed. For that reason request a depth stencil surface all the
 659          * time. It can cause a slight performance hit but fixes a lot of regressions. A fixme reminds of that this
 660          * issue needs to be fixed. */
 661         for (i = 0; i < (sizeof(formats) / sizeof(*formats)); i++)
 662         {
 663             swapchain->ds_format = wined3d_get_format(gl_info, formats[i]);
 664             swapchain->context[0] = context_create(swapchain, swapchain->front_buffer, swapchain->ds_format);
 665             if (swapchain->context[0]) break;
 666             TRACE("Depth stencil format %s is not supported, trying next format\n",
 667                   debug_d3dformat(formats[i]));
 668         }
 669
 670         if (!swapchain->context[0])
 671         {
 672             WARN("Failed to create context.\n");
 673             hr = WINED3DERR_NOTAVAILABLE;
 674             goto err;
 675         }
 676
 677         if (!present_parameters->EnableAutoDepthStencil
 678                 || swapchain->presentParms.AutoDepthStencilFormat != swapchain->ds_format->id)
 679         {
 680             FIXME("Add OpenGL context recreation support to context_validate_onscreen_formats\n");
 681         }
 682         context_release(swapchain->context[0]);
 683     }
 684     else
 685     {
 686         swapchain->context[0] = NULL;
 687     }
 688
 689     if (swapchain->presentParms.BackBufferCount > 0)
 690     {
 691         swapchain->back_buffers = HeapAlloc(GetProcessHeap(), 0,
 692                 sizeof(*swapchain->back_buffers) * swapchain->presentParms.BackBufferCount);
 693         if (!swapchain->back_buffers)
 694         {
 695             ERR("Failed to allocate backbuffer array memory.\n");
 696             hr = E_OUTOFMEMORY;
 697             goto err;
 698         }
 699
 700         for (i = 0; i < swapchain->presentParms.BackBufferCount; ++i)
 701         {
 702             TRACE("Creating back buffer %u.\n", i);
 703             hr = IWineD3DDeviceParent_CreateRenderTarget(device->device_parent, parent,
 704                     swapchain->presentParms.BackBufferWidth, swapchain->presentParms.BackBufferHeight,
 705                     swapchain->presentParms.BackBufferFormat, swapchain->presentParms.MultiSampleType,
 706                     swapchain->presentParms.MultiSampleQuality, TRUE /* Lockable */,
 707                     (IWineD3DSurface **)&swapchain->back_buffers[i]);
 708             if (FAILED(hr))
 709             {
 710                 WARN("Failed to create back buffer %u, hr %#x.\n", i, hr);
 711                 goto err;
 712             }
 713
 714             surface_set_container(swapchain->back_buffers[i], WINED3D_CONTAINER_SWAPCHAIN, (IWineD3DBase *)swapchain);
 715         }
 716     }
 717
 718     /* Swapchains share the depth/stencil buffer, so only create a single depthstencil surface. */
 719     if (present_parameters->EnableAutoDepthStencil && surface_type == SURFACE_OPENGL)
 720     {
 721         TRACE("Creating depth/stencil buffer.\n");
 722         if (!device->auto_depth_stencil)
 723         {
 724             hr = IWineD3DDeviceParent_CreateDepthStencilSurface(device->device_parent,
 725                     swapchain->presentParms.BackBufferWidth, swapchain->presentParms.BackBufferHeight,
 726                     swapchain->presentParms.AutoDepthStencilFormat, swapchain->presentParms.MultiSampleType,
 727                     swapchain->presentParms.MultiSampleQuality, FALSE /* FIXME: Discard */,
 728                     (IWineD3DSurface **)&device->auto_depth_stencil);
 729             if (FAILED(hr))
 730             {
 731                 WARN("Failed to create the auto depth stencil, hr %#x.\n", hr);
 732                 goto err;
 733             }
 734
 735             surface_set_container(device->auto_depth_stencil, WINED3D_CONTAINER_NONE, NULL);
 736         }
 737     }
 738
 739     IWineD3DSwapChain_GetGammaRamp((IWineD3DSwapChain *)swapchain, &swapchain->orig_gamma);
 740
 741     return WINED3D_OK;
 742
 743 err:
 744     if (displaymode_set)
 745     {
 746         DEVMODEW devmode;
 747
 748         ClipCursor(NULL);
 749
 750         /* Change the display settings */
 751         memset(&devmode, 0, sizeof(devmode));
 752         devmode.dmSize = sizeof(devmode);
 753         devmode.dmFields = DM_BITSPERPEL | DM_PELSWIDTH | DM_PELSHEIGHT;
 754         devmode.dmBitsPerPel = format->byte_count * CHAR_BIT;
 755         devmode.dmPelsWidth = swapchain->orig_width;
 756         devmode.dmPelsHeight = swapchain->orig_height;
 757         ChangeDisplaySettingsExW(adapter->DeviceName, &devmode, NULL, CDS_FULLSCREEN, NULL);
 758     }
 759
 760     if (swapchain->back_buffers)
 761     {
 762         for (i = 0; i < swapchain->presentParms.BackBufferCount; ++i)
 763         {
 764             if (swapchain->back_buffers[i]) IWineD3DSurface_Release((IWineD3DSurface *)swapchain->back_buffers[i]);
 765         }
 766         HeapFree(GetProcessHeap(), 0, swapchain->back_buffers);
 767     }
 768
 769     if (swapchain->context)
 770     {
 771         if (swapchain->context[0])
 772         {
 773             context_release(swapchain->context[0]);
 774             context_destroy(device, swapchain->context[0]);
 775             swapchain->num_contexts = 0;
 776         }
 777         HeapFree(GetProcessHeap(), 0, swapchain->context);
 778     }
 779
 780     if (swapchain->front_buffer) IWineD3DSurface_Release((IWineD3DSurface *)swapchain->front_buffer);
 781
 782     return hr;
 783 }
 784
 785 /* Do not call while under the GL lock. */
 786 static struct wined3d_context *swapchain_create_context(struct IWineD3DSwapChainImpl *swapchain)
 787 {
 788     struct wined3d_context **newArray;
 789     struct wined3d_context *ctx;
 790
 791     TRACE("Creating a new context for swapchain %p, thread %u.\n", swapchain, GetCurrentThreadId());
 792
 793     if (!(ctx = context_create(swapchain, swapchain->front_buffer, swapchain->ds_format)))
 794     {
 795         ERR("Failed to create a new context for the swapchain\n");
 796         return NULL;
 797     }
 798     context_release(ctx);
 799
 800     newArray = HeapAlloc(GetProcessHeap(), 0, sizeof(*newArray) * (swapchain->num_contexts + 1));
 801     if(!newArray) {
 802         ERR("Out of memory when trying to allocate a new context array\n");
 803         context_destroy(swapchain->device, ctx);
 804         return NULL;
 805     }
 806     memcpy(newArray, swapchain->context, sizeof(*newArray) * swapchain->num_contexts);
 807     HeapFree(GetProcessHeap(), 0, swapchain->context);
 808     newArray[swapchain->num_contexts] = ctx;
 809     swapchain->context = newArray;
 810     swapchain->num_contexts++;
 811
 812     TRACE("Returning context %p\n", ctx);
 813     return ctx;
 814 }
 815
 816 struct wined3d_context *swapchain_get_context(struct IWineD3DSwapChainImpl *swapchain)
 817 {
 818     DWORD tid = GetCurrentThreadId();
 819     unsigned int i;
 820
 821     for (i = 0; i < swapchain->num_contexts; ++i)
 822     {
 823         if (swapchain->context[i]->tid == tid)
 824             return swapchain->context[i];
 825     }
 826
 827     /* Create a new context for the thread */
 828     return swapchain_create_context(swapchain);
 829 }
 830
 831 void get_drawable_size_swapchain(struct wined3d_context *context, UINT *width, UINT *height)
 832 {
 833     /* The drawable size of an onscreen drawable is the surface size.
 834      * (Actually: The window size, but the surface is created in window size) */
 835     *width = context->current_rt->currentDesc.Width;
 836     *height = context->current_rt->currentDesc.Height;
 837 }