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

   1 /*
   2  * Copyright 2002-2003 Jason Edmeades
   3  * Copyright 2002-2003 Raphael Junqueira
   4  * Copyright 2005 Oliver Stieber
   5  * Copyright 2007-2008 Stefan Dösinger for CodeWeavers
   6  * Copyright 2011 Henri Verbeet for CodeWeavers
   7  *
   8  * This library is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU Lesser General Public
  10  * License as published by the Free Software Foundation; either
  11  * version 2.1 of the License, or (at your option) any later version.
  12  *
  13  * This library is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * Lesser General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU Lesser General Public
  19  * License along with this library; if not, write to the Free Software
  20  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  21  */
  22
  23 #include "config.h"
  24 #include "wined3d_private.h"
  25
  26 WINE_DEFAULT_DEBUG_CHANNEL(d3d);
  27 WINE_DECLARE_DEBUG_CHANNEL(fps);
  28
  29 /* Do not call while under the GL lock. */
  30 static void swapchain_cleanup(struct wined3d_swapchain *swapchain)
  31 {
  32     WINED3DDISPLAYMODE mode;
  33     UINT i;
  34
  35     TRACE("Destroying swapchain %p.\n", swapchain);
  36
  37     wined3d_swapchain_set_gamma_ramp(swapchain, 0, &swapchain->orig_gamma);
  38
  39     /* Release the swapchain's draw buffers. Make sure swapchain->back_buffers[0]
  40      * is the last buffer to be destroyed, FindContext() depends on that. */
  41     if (swapchain->front_buffer)
  42     {
  43         surface_set_container(swapchain->front_buffer, WINED3D_CONTAINER_NONE, NULL);
  44         if (wined3d_surface_decref(swapchain->front_buffer))
  45             WARN("Something's still holding the front buffer (%p).\n", swapchain->front_buffer);
  46         swapchain->front_buffer = NULL;
  47     }
  48
  49     if (swapchain->back_buffers)
  50     {
  51         i = swapchain->presentParms.BackBufferCount;
  52
  53         while (i--)
  54         {
  55             surface_set_container(swapchain->back_buffers[i], WINED3D_CONTAINER_NONE, NULL);
  56             if (wined3d_surface_decref(swapchain->back_buffers[i]))
  57                 WARN("Something's still holding back buffer %u (%p).\n", i, swapchain->back_buffers[i]);
  58         }
  59         HeapFree(GetProcessHeap(), 0, swapchain->back_buffers);
  60         swapchain->back_buffers = NULL;
  61     }
  62
  63     for (i = 0; i < swapchain->num_contexts; ++i)
  64     {
  65         context_destroy(swapchain->device, swapchain->context[i]);
  66     }
  67     HeapFree(GetProcessHeap(), 0, swapchain->context);
  68
  69     /* Restore the screen resolution if we rendered in fullscreen.
  70      * This will restore the screen resolution to what it was before creating
  71      * the swapchain. In case of d3d8 and d3d9 this will be the original
  72      * desktop resolution. In case of d3d7 this will be a NOP because ddraw
  73      * sets the resolution before starting up Direct3D, thus orig_width and
  74      * orig_height will be equal to the modes in the presentation params. */
  75     if (!swapchain->presentParms.Windowed && swapchain->presentParms.AutoRestoreDisplayMode)
  76     {
  77         mode.Width = swapchain->orig_width;
  78         mode.Height = swapchain->orig_height;
  79         mode.RefreshRate = 0;
  80         mode.Format = swapchain->orig_fmt;
  81         wined3d_device_set_display_mode(swapchain->device, 0, &mode);
  82     }
  83
  84     if (swapchain->backup_dc)
  85     {
  86         TRACE("Destroying backup wined3d window %p, dc %p.\n", swapchain->backup_wnd, swapchain->backup_dc);
  87
  88         ReleaseDC(swapchain->backup_wnd, swapchain->backup_dc);
  89         DestroyWindow(swapchain->backup_wnd);
  90     }
  91 }
  92
  93 ULONG CDECL wined3d_swapchain_incref(struct wined3d_swapchain *swapchain)
  94 {
  95     ULONG refcount = InterlockedIncrement(&swapchain->ref);
  96
  97     TRACE("%p increasing refcount to %u.\n", swapchain, refcount);
  98
  99     return refcount;
 100 }
 101
 102 /* Do not call while under the GL lock. */
 103 ULONG CDECL wined3d_swapchain_decref(struct wined3d_swapchain *swapchain)
 104 {
 105     ULONG refcount = InterlockedDecrement(&swapchain->ref);
 106
 107     TRACE("%p decreasing refcount to %u.\n", swapchain, refcount);
 108
 109     if (!refcount)
 110     {
 111         swapchain_cleanup(swapchain);
 112         swapchain->parent_ops->wined3d_object_destroyed(swapchain->parent);
 113         HeapFree(GetProcessHeap(), 0, swapchain);
 114     }
 115
 116     return refcount;
 117 }
 118
 119 void * CDECL wined3d_swapchain_get_parent(const struct wined3d_swapchain *swapchain)
 120 {
 121     TRACE("swapchain %p.\n", swapchain);
 122
 123     return swapchain->parent;
 124 }
 125
 126 HRESULT CDECL wined3d_swapchain_set_window(struct wined3d_swapchain *swapchain, HWND window)
 127 {
 128     if (!window)
 129         window = swapchain->device_window;
 130     if (window == swapchain->win_handle)
 131         return WINED3D_OK;
 132
 133     TRACE("Setting swapchain %p window from %p to %p.\n",
 134             swapchain, swapchain->win_handle, window);
 135     swapchain->win_handle = window;
 136
 137     return WINED3D_OK;
 138 }
 139
 140 HRESULT CDECL wined3d_swapchain_present(struct wined3d_swapchain *swapchain,
 141         const RECT *src_rect, const RECT *dst_rect, HWND dst_window_override,
 142         const RGNDATA *dirty_region, DWORD flags)
 143 {
 144     TRACE("swapchain %p, src_rect %s, dst_rect %s, dst_window_override %p, dirty_region %p, flags %#x.\n",
 145             swapchain, wine_dbgstr_rect(src_rect), wine_dbgstr_rect(dst_rect),
 146             dst_window_override, dirty_region, flags);
 147
 148     wined3d_swapchain_set_window(swapchain, dst_window_override);
 149
 150     return swapchain->swapchain_ops->swapchain_present(swapchain,
 151             src_rect, dst_rect, dirty_region, flags);
 152 }
 153
 154 HRESULT CDECL wined3d_swapchain_get_front_buffer_data(const struct wined3d_swapchain *swapchain,
 155         struct wined3d_surface *dst_surface)
 156 {
 157     POINT offset = {0, 0};
 158
 159     TRACE("swapchain %p, dst_surface %p.\n", swapchain, dst_surface);
 160
 161     if (swapchain->presentParms.Windowed)
 162         MapWindowPoints(swapchain->win_handle, NULL, &offset, 1);
 163
 164     wined3d_surface_bltfast(dst_surface, offset.x, offset.y, swapchain->front_buffer, NULL, 0);
 165
 166     return WINED3D_OK;
 167 }
 168
 169 HRESULT CDECL wined3d_swapchain_get_back_buffer(const struct wined3d_swapchain *swapchain,
 170         UINT back_buffer_idx, WINED3DBACKBUFFER_TYPE type, struct wined3d_surface **back_buffer)
 171 {
 172     TRACE("swapchain %p, back_buffer_idx %u, type %#x, back_buffer %p.\n",
 173             swapchain, back_buffer_idx, type, back_buffer);
 174
 175     /* Return invalid if there is no backbuffer array, otherwise it will
 176      * crash when ddraw is used (there swapchain->back_buffers is always
 177      * NULL). We need this because this function is called from
 178      * stateblock_init_default_state() to get the default scissorrect
 179      * dimensions. */
 180     if (!swapchain->back_buffers || back_buffer_idx >= swapchain->presentParms.BackBufferCount)
 181     {
 182         WARN("Invalid back buffer index.\n");
 183         /* Native d3d9 doesn't set NULL here, just as wine's d3d9. But set it
 184          * here in wined3d to avoid problems in other libs. */
 185         *back_buffer = NULL;
 186         return WINED3DERR_INVALIDCALL;
 187     }
 188
 189     *back_buffer = swapchain->back_buffers[back_buffer_idx];
 190     if (*back_buffer)
 191         wined3d_surface_incref(*back_buffer);
 192
 193     TRACE("Returning back buffer %p.\n", *back_buffer);
 194
 195     return WINED3D_OK;
 196 }
 197
 198 HRESULT CDECL wined3d_swapchain_get_raster_status(const struct wined3d_swapchain *swapchain,
 199         WINED3DRASTER_STATUS *raster_status)
 200 {
 201     static BOOL warned;
 202     /* No OpenGL equivalent */
 203     if (!warned)
 204     {
 205         FIXME("swapchain %p, raster_status %p stub!\n", swapchain, raster_status);
 206         warned = TRUE;
 207     }
 208
 209     /* Obtaining the raster status is a widely implemented but optional
 210      * feature. When this method returns OK StarCraft 2 expects the
 211      * raster_status->InVBlank value to actually change over time. To prevent
 212      * StarCraft 2 from running in an infinite loop at startup this method
 213      * returns INVALIDCALL. */
 214     return WINED3DERR_INVALIDCALL;
 215 }
 216
 217 HRESULT CDECL wined3d_swapchain_get_display_mode(const struct wined3d_swapchain *swapchain, WINED3DDISPLAYMODE *mode)
 218 {
 219     HRESULT hr;
 220
 221     TRACE("swapchain %p, mode %p.\n", swapchain, mode);
 222
 223     hr = wined3d_get_adapter_display_mode(swapchain->device->wined3d, swapchain->device->adapter->ordinal, mode);
 224
 225     TRACE("Returning w %u, h %u, refresh rate %u, format %s.\n",
 226             mode->Width, mode->Height, mode->RefreshRate, debug_d3dformat(mode->Format));
 227
 228     return hr;
 229 }
 230
 231 struct wined3d_device * CDECL wined3d_swapchain_get_device(const struct wined3d_swapchain *swapchain)
 232 {
 233     TRACE("swapchain %p.\n", swapchain);
 234
 235     return swapchain->device;
 236 }
 237
 238 HRESULT CDECL wined3d_swapchain_get_present_parameters(const struct wined3d_swapchain *swapchain,
 239         WINED3DPRESENT_PARAMETERS *present_parameters)
 240 {
 241     TRACE("swapchain %p, present_parameters %p.\n", swapchain, present_parameters);
 242
 243     *present_parameters = swapchain->presentParms;
 244
 245     return WINED3D_OK;
 246 }
 247
 248 HRESULT CDECL wined3d_swapchain_set_gamma_ramp(const struct wined3d_swapchain *swapchain,
 249         DWORD flags, const WINED3DGAMMARAMP *ramp)
 250 {
 251     HDC dc;
 252
 253     TRACE("swapchain %p, flags %#x, ramp %p.\n", swapchain, flags, ramp);
 254
 255     if (flags)
 256         FIXME("Ignoring flags %#x.\n", flags);
 257
 258     dc = GetDC(swapchain->device_window);
 259     SetDeviceGammaRamp(dc, (void *)ramp);
 260     ReleaseDC(swapchain->device_window, dc);
 261
 262     return WINED3D_OK;
 263 }
 264
 265 HRESULT CDECL wined3d_swapchain_get_gamma_ramp(const struct wined3d_swapchain *swapchain,
 266         WINED3DGAMMARAMP *ramp)
 267 {
 268     HDC dc;
 269
 270     TRACE("swapchain %p, ramp %p.\n", swapchain, ramp);
 271
 272     dc = GetDC(swapchain->device_window);
 273     GetDeviceGammaRamp(dc, ramp);
 274     ReleaseDC(swapchain->device_window, dc);
 275
 276     return WINED3D_OK;
 277 }
 278
 279 /* A GL context is provided by the caller */
 280 static void swapchain_blit(const struct wined3d_swapchain *swapchain,
 281         struct wined3d_context *context, const RECT *src_rect, const RECT *dst_rect)
 282 {
 283     struct wined3d_surface *backbuffer = swapchain->back_buffers[0];
 284     UINT src_w = src_rect->right - src_rect->left;
 285     UINT src_h = src_rect->bottom - src_rect->top;
 286     GLenum gl_filter;
 287     const struct wined3d_gl_info *gl_info = context->gl_info;
 288     RECT win_rect;
 289     UINT win_h;
 290
 291     TRACE("swapchain %p, context %p, src_rect %s, dst_rect %s.\n",
 292             swapchain, context, wine_dbgstr_rect(src_rect), wine_dbgstr_rect(dst_rect));
 293
 294     if (src_w == dst_rect->right - dst_rect->left && src_h == dst_rect->bottom - dst_rect->top)
 295         gl_filter = GL_NEAREST;
 296     else
 297         gl_filter = GL_LINEAR;
 298
 299     GetClientRect(swapchain->win_handle, &win_rect);
 300     win_h = win_rect.bottom - win_rect.top;
 301
 302     if (gl_info->fbo_ops.glBlitFramebuffer && is_identity_fixup(backbuffer->resource.format->color_fixup))
 303     {
 304         ENTER_GL();
 305         context_apply_fbo_state_blit(context, GL_READ_FRAMEBUFFER, backbuffer, NULL, SFLAG_INTEXTURE);
 306         glReadBuffer(GL_COLOR_ATTACHMENT0);
 307         context_check_fbo_status(context, GL_READ_FRAMEBUFFER);
 308
 309         context_apply_fbo_state_blit(context, GL_DRAW_FRAMEBUFFER, swapchain->front_buffer, NULL, SFLAG_INDRAWABLE);
 310         context_set_draw_buffer(context, GL_BACK);
 311         context_invalidate_state(context, STATE_FRAMEBUFFER);
 312
 313         glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
 314         context_invalidate_state(context, STATE_RENDER(WINED3DRS_COLORWRITEENABLE));
 315         context_invalidate_state(context, STATE_RENDER(WINED3DRS_COLORWRITEENABLE1));
 316         context_invalidate_state(context, STATE_RENDER(WINED3DRS_COLORWRITEENABLE2));
 317         context_invalidate_state(context, STATE_RENDER(WINED3DRS_COLORWRITEENABLE3));
 318
 319         glDisable(GL_SCISSOR_TEST);
 320         context_invalidate_state(context, STATE_RENDER(WINED3DRS_SCISSORTESTENABLE));
 321
 322         /* Note that the texture is upside down */
 323         gl_info->fbo_ops.glBlitFramebuffer(src_rect->left, src_rect->top, src_rect->right, src_rect->bottom,
 324                 dst_rect->left, win_h - dst_rect->top, dst_rect->right, win_h - dst_rect->bottom,
 325                 GL_COLOR_BUFFER_BIT, gl_filter);
 326         checkGLcall("Swapchain present blit(EXT_framebuffer_blit)\n");
 327         LEAVE_GL();
 328     }
 329     else
 330     {
 331         struct wined3d_device *device = swapchain->device;
 332         struct wined3d_context *context2;
 333         float tex_left = src_rect->left;
 334         float tex_top = src_rect->top;
 335         float tex_right = src_rect->right;
 336         float tex_bottom = src_rect->bottom;
 337
 338         context2 = context_acquire(device, swapchain->back_buffers[0]);
 339         context_apply_blit_state(context2, device);
 340
 341         if (backbuffer->flags & SFLAG_NORMCOORD)
 342         {
 343             tex_left /= src_w;
 344             tex_right /= src_w;
 345             tex_top /= src_h;
 346             tex_bottom /= src_h;
 347         }
 348
 349         if (is_complex_fixup(backbuffer->resource.format->color_fixup))
 350             gl_filter = GL_NEAREST;
 351
 352         ENTER_GL();
 353         context_apply_fbo_state_blit(context2, GL_FRAMEBUFFER, swapchain->front_buffer, NULL, SFLAG_INDRAWABLE);
 354
 355         /* Set up the texture. The surface is not in a wined3d_texture
 356          * container, so there are no D3D texture settings to dirtify. */
 357         device->blitter->set_shader(device->blit_priv, context2, backbuffer);
 358         glTexParameteri(backbuffer->texture_target, GL_TEXTURE_MIN_FILTER, gl_filter);
 359         glTexParameteri(backbuffer->texture_target, GL_TEXTURE_MAG_FILTER, gl_filter);
 360
 361         context_set_draw_buffer(context, GL_BACK);
 362
 363         /* Set the viewport to the destination rectandle, disable any projection
 364          * transformation set up by context_apply_blit_state(), and draw a
 365          * (-1,-1)-(1,1) quad.
 366          *
 367          * Back up viewport and matrix to avoid breaking last_was_blit
 368          *
 369          * Note that context_apply_blit_state() set up viewport and ortho to
 370          * match the surface size - we want the GL drawable(=window) size. */
 371         glPushAttrib(GL_VIEWPORT_BIT);
 372         glViewport(dst_rect->left, win_h - dst_rect->bottom, dst_rect->right, win_h - dst_rect->top);
 373         glMatrixMode(GL_PROJECTION);
 374         glPushMatrix();
 375         glLoadIdentity();
 376
 377         glBegin(GL_QUADS);
 378             /* bottom left */
 379             glTexCoord2f(tex_left, tex_bottom);
 380             glVertex2i(-1, -1);
 381
 382             /* top left */
 383             glTexCoord2f(tex_left, tex_top);
 384             glVertex2i(-1, 1);
 385
 386             /* top right */
 387             glTexCoord2f(tex_right, tex_top);
 388             glVertex2i(1, 1);
 389
 390             /* bottom right */
 391             glTexCoord2f(tex_right, tex_bottom);
 392             glVertex2i(1, -1);
 393         glEnd();
 394
 395         glPopMatrix();
 396         glPopAttrib();
 397
 398         device->blitter->unset_shader(context->gl_info);
 399         checkGLcall("Swapchain present blit(manual)\n");
 400         LEAVE_GL();
 401
 402         context_release(context2);
 403     }
 404 }
 405
 406 static HRESULT swapchain_gl_present(struct wined3d_swapchain *swapchain, const RECT *src_rect_in,
 407         const RECT *dst_rect_in, const RGNDATA *dirty_region, DWORD flags)
 408 {
 409     const struct wined3d_fb_state *fb = &swapchain->device->fb;
 410     const struct wined3d_gl_info *gl_info;
 411     struct wined3d_context *context;
 412     RECT src_rect, dst_rect;
 413     BOOL render_to_fbo;
 414
 415     context = context_acquire(swapchain->device, swapchain->back_buffers[0]);
 416     if (!context->valid)
 417     {
 418         context_release(context);
 419         WARN("Invalid context, skipping present.\n");
 420         return WINED3D_OK;
 421     }
 422
 423     gl_info = context->gl_info;
 424
 425     /* Render the cursor onto the back buffer, using our nifty directdraw blitting code :-) */
 426     if (swapchain->device->bCursorVisible &&
 427         swapchain->device->cursorTexture &&
 428         !swapchain->device->hardwareCursor)
 429     {
 430         struct wined3d_surface cursor;
 431         RECT destRect =
 432         {
 433             swapchain->device->xScreenSpace - swapchain->device->xHotSpot,
 434             swapchain->device->yScreenSpace - swapchain->device->yHotSpot,
 435             swapchain->device->xScreenSpace + swapchain->device->cursorWidth - swapchain->device->xHotSpot,
 436             swapchain->device->yScreenSpace + swapchain->device->cursorHeight - swapchain->device->yHotSpot,
 437         };
 438         TRACE("Rendering the cursor. Creating fake surface at %p\n", &cursor);
 439         /* Build a fake surface to call the Blitting code. It is not possible to use the interface passed by
 440          * the application because we are only supposed to copy the information out. Using a fake surface
 441          * allows to use the Blitting engine and avoid copying the whole texture -> render target blitting code.
 442          */
 443         memset(&cursor, 0, sizeof(cursor));
 444         cursor.resource.ref = 1;
 445         cursor.resource.device = swapchain->device;
 446         cursor.resource.pool = WINED3DPOOL_SCRATCH;
 447         cursor.resource.format = wined3d_get_format(gl_info, WINED3DFMT_B8G8R8A8_UNORM);
 448         cursor.resource.resourceType = WINED3DRTYPE_SURFACE;
 449         cursor.texture_name = swapchain->device->cursorTexture;
 450         cursor.texture_target = GL_TEXTURE_2D;
 451         cursor.texture_level = 0;
 452         cursor.resource.width = swapchain->device->cursorWidth;
 453         cursor.resource.height = swapchain->device->cursorHeight;
 454         /* The cursor must have pow2 sizes */
 455         cursor.pow2Width = cursor.resource.width;
 456         cursor.pow2Height = cursor.resource.height;
 457         /* The surface is in the texture */
 458         cursor.flags |= SFLAG_INTEXTURE;
 459         /* DDBLT_KEYSRC will cause BltOverride to enable the alpha test with GL_NOTEQUAL, 0.0,
 460          * which is exactly what we want :-)
 461          */
 462         if (swapchain->presentParms.Windowed)
 463             MapWindowPoints(NULL, swapchain->win_handle, (LPPOINT)&destRect, 2);
 464         wined3d_surface_blt(swapchain->back_buffers[0], &destRect,
 465                 &cursor, NULL, WINEDDBLT_KEYSRC, NULL, WINED3DTEXF_POINT);
 466     }
 467
 468     if (swapchain->device->logo_surface)
 469     {
 470         /* Blit the logo into the upper left corner of the drawable. */
 471         wined3d_surface_bltfast(swapchain->back_buffers[0], 0, 0,
 472                 swapchain->device->logo_surface, NULL, WINEDDBLTFAST_SRCCOLORKEY);
 473     }
 474
 475     TRACE("Presenting HDC %p.\n", context->hdc);
 476
 477     render_to_fbo = swapchain->render_to_fbo;
 478
 479     if (src_rect_in)
 480     {
 481         src_rect = *src_rect_in;
 482         if (!render_to_fbo && (src_rect.left || src_rect.top
 483                 || src_rect.right != swapchain->presentParms.BackBufferWidth
 484                 || src_rect.bottom != swapchain->presentParms.BackBufferHeight))
 485         {
 486             render_to_fbo = TRUE;
 487         }
 488     }
 489     else
 490     {
 491         src_rect.left = 0;
 492         src_rect.top = 0;
 493         src_rect.right = swapchain->presentParms.BackBufferWidth;
 494         src_rect.bottom = swapchain->presentParms.BackBufferHeight;
 495     }
 496
 497     if (dst_rect_in)
 498         dst_rect = *dst_rect_in;
 499     else
 500         GetClientRect(swapchain->win_handle, &dst_rect);
 501
 502     if (!render_to_fbo && (dst_rect.left || dst_rect.top
 503             || dst_rect.right != swapchain->presentParms.BackBufferWidth
 504             || dst_rect.bottom != swapchain->presentParms.BackBufferHeight))
 505     {
 506         render_to_fbo = TRUE;
 507     }
 508
 509     /* Rendering to a window of different size, presenting partial rectangles,
 510      * or rendering to a different window needs help from FBO_blit or a textured
 511      * draw. Render the swapchain to a FBO in the future.
 512      *
 513      * Note that FBO_blit from the backbuffer to the frontbuffer cannot solve
 514      * all these issues - this fails if the window is smaller than the backbuffer.
 515      */
 516     if (!swapchain->render_to_fbo && render_to_fbo && wined3d_settings.offscreen_rendering_mode == ORM_FBO)
 517     {
 518         surface_load_location(swapchain->back_buffers[0], SFLAG_INTEXTURE, NULL);
 519         surface_modify_location(swapchain->back_buffers[0], SFLAG_INDRAWABLE, FALSE);
 520         swapchain->render_to_fbo = TRUE;
 521         swapchain_update_draw_bindings(swapchain);
 522     }
 523
 524     if (swapchain->render_to_fbo)
 525     {
 526         /* This codepath should only be hit with the COPY swapeffect. Otherwise a backbuffer-
 527          * window size mismatch is impossible(fullscreen) and src and dst rectangles are
 528          * not allowed(they need the COPY swapeffect)
 529          *
 530          * The DISCARD swap effect is ok as well since any backbuffer content is allowed after
 531          * the swap. */
 532         if (swapchain->presentParms.SwapEffect == WINED3DSWAPEFFECT_FLIP)
 533             FIXME("Render-to-fbo with WINED3DSWAPEFFECT_FLIP\n");
 534
 535         swapchain_blit(swapchain, context, &src_rect, &dst_rect);
 536     }
 537
 538     if (swapchain->num_contexts > 1)
 539         wglFinish();
 540     SwapBuffers(context->hdc); /* TODO: cycle through the swapchain buffers */
 541
 542     TRACE("SwapBuffers called, Starting new frame\n");
 543     /* FPS support */
 544     if (TRACE_ON(fps))
 545     {
 546         DWORD time = GetTickCount();
 547         ++swapchain->frames;
 548
 549         /* every 1.5 seconds */
 550         if (time - swapchain->prev_time > 1500)
 551         {
 552             TRACE_(fps)("%p @ approx %.2ffps\n",
 553                     swapchain, 1000.0 * swapchain->frames / (time - swapchain->prev_time));
 554             swapchain->prev_time = time;
 555             swapchain->frames = 0;
 556         }
 557     }
 558
 559     /* This is disabled, but the code left in for debug purposes.
 560      *
 561      * Since we're allowed to modify the new back buffer on a D3DSWAPEFFECT_DISCARD flip,
 562      * we can clear it with some ugly color to make bad drawing visible and ease debugging.
 563      * The Debug runtime does the same on Windows. However, a few games do not redraw the
 564      * screen properly, like Max Payne 2, which leaves a few pixels undefined.
 565      *
 566      * Tests show that the content of the back buffer after a discard flip is indeed not
 567      * reliable, so no game can depend on the exact content. However, it resembles the
 568      * old contents in some way, for example by showing fragments at other locations. In
 569      * general, the color theme is still intact. So Max payne, which draws rather dark scenes
 570      * gets a dark background image. If we clear it with a bright ugly color, the game's
 571      * bug shows up much more than it does on Windows, and the players see single pixels
 572      * with wrong colors.
 573      * (The Max Payne bug has been confirmed on Windows with the debug runtime) */
 574     if (FALSE && swapchain->presentParms.SwapEffect == WINED3DSWAPEFFECT_DISCARD)
 575     {
 576         TRACE("Clearing the color buffer with cyan color\n");
 577
 578         wined3d_device_clear(swapchain->device, 0, NULL,
 579                 WINED3DCLEAR_TARGET, 0xff00ffff, 1.0f, 0);
 580     }
 581
 582     if (!swapchain->render_to_fbo && ((swapchain->front_buffer->flags & SFLAG_INSYSMEM)
 583             || (swapchain->back_buffers[0]->flags & SFLAG_INSYSMEM)))
 584     {
 585         /* Both memory copies of the surfaces are ok, flip them around too instead of dirtifying
 586          * Doesn't work with render_to_fbo because we're not flipping
 587          */
 588         struct wined3d_surface *front = swapchain->front_buffer;
 589         struct wined3d_surface *back = swapchain->back_buffers[0];
 590
 591         if(front->resource.size == back->resource.size) {
 592             DWORD fbflags;
 593             flip_surface(front, back);
 594
 595             /* Tell the front buffer surface that is has been modified. However,
 596              * the other locations were preserved during that, so keep the flags.
 597              * This serves to update the emulated overlay, if any. */
 598             fbflags = front->flags;
 599             surface_modify_location(front, SFLAG_INDRAWABLE, TRUE);
 600             front->flags = fbflags;
 601         }
 602         else
 603         {
 604             surface_modify_location(front, SFLAG_INDRAWABLE, TRUE);
 605             surface_modify_location(back, SFLAG_INDRAWABLE, TRUE);
 606         }
 607     }
 608     else
 609     {
 610         surface_modify_location(swapchain->front_buffer, SFLAG_INDRAWABLE, TRUE);
 611         /* If the swapeffect is DISCARD, the back buffer is undefined. That means the SYSMEM
 612          * and INTEXTURE copies can keep their old content if they have any defined content.
 613          * If the swapeffect is COPY, the content remains the same. If it is FLIP however,
 614          * the texture / sysmem copy needs to be reloaded from the drawable
 615          */
 616         if (swapchain->presentParms.SwapEffect == WINED3DSWAPEFFECT_FLIP)
 617             surface_modify_location(swapchain->back_buffers[0], swapchain->back_buffers[0]->draw_binding, TRUE);
 618     }
 619
 620     if (fb->depth_stencil)
 621     {
 622         if (swapchain->presentParms.Flags & WINED3DPRESENTFLAG_DISCARD_DEPTHSTENCIL
 623                 || fb->depth_stencil->flags & SFLAG_DISCARD)
 624         {
 625             surface_modify_ds_location(fb->depth_stencil, SFLAG_DS_DISCARDED,
 626                     fb->depth_stencil->resource.width,
 627                     fb->depth_stencil->resource.height);
 628             if (fb->depth_stencil == swapchain->device->onscreen_depth_stencil)
 629             {
 630                 wined3d_surface_decref(swapchain->device->onscreen_depth_stencil);
 631                 swapchain->device->onscreen_depth_stencil = NULL;
 632             }
 633         }
 634     }
 635
 636     context_release(context);
 637
 638     TRACE("returning\n");
 639     return WINED3D_OK;
 640 }
 641
 642 static const struct wined3d_swapchain_ops swapchain_gl_ops =
 643 {
 644     swapchain_gl_present,
 645 };
 646
 647 /* Helper function that blits the front buffer contents to the target window. */
 648 void x11_copy_to_screen(const struct wined3d_swapchain *swapchain, const RECT *rect)
 649 {
 650     const struct wined3d_surface *front;
 651     POINT offset = {0, 0};
 652     HDC src_dc, dst_dc;
 653     RECT draw_rect;
 654     HWND window;
 655
 656     TRACE("swapchain %p, rect %s.\n", swapchain, wine_dbgstr_rect(rect));
 657
 658     front = swapchain->front_buffer;
 659     if (!(front->resource.usage & WINED3DUSAGE_RENDERTARGET))
 660         return;
 661
 662     TRACE("Copying surface %p to screen.\n", front);
 663
 664     src_dc = front->hDC;
 665     window = swapchain->win_handle;
 666     dst_dc = GetDCEx(window, 0, DCX_CLIPSIBLINGS | DCX_CACHE);
 667
 668     /* Front buffer coordinates are screen coordinates. Map them to the
 669      * destination window if not fullscreened. */
 670     if (swapchain->presentParms.Windowed)
 671         ClientToScreen(window, &offset);
 672
 673     TRACE("offset %s.\n", wine_dbgstr_point(&offset));
 674
 675 #if 0
 676     /* FIXME: This doesn't work... if users really want to run
 677      * X in 8bpp, then we need to call directly into display.drv
 678      * (or Wine's equivalent), and force a private colormap
 679      * without default entries. */
 680     if (front->palette)
 681     {
 682         SelectPalette(dst_dc, front->palette->hpal, FALSE);
 683         RealizePalette(dst_dc); /* sends messages => deadlocks */
 684     }
 685 #endif
 686
 687     draw_rect.left = 0;
 688     draw_rect.right = front->resource.width;
 689     draw_rect.top = 0;
 690     draw_rect.bottom = front->resource.height;
 691
 692 #if 0
 693     /* TODO: Support clippers. */
 694     if (front->clipper)
 695     {
 696         RECT xrc;
 697         HWND hwnd = front->clipper->hWnd;
 698         if (hwnd && GetClientRect(hwnd,&xrc))
 699         {
 700             OffsetRect(&xrc, offset.x, offset.y);
 701             IntersectRect(&draw_rect, &draw_rect, &xrc);
 702         }
 703     }
 704 #endif
 705
 706     if (!rect)
 707     {
 708         /* Only use this if the caller did not pass a rectangle, since
 709          * due to double locking this could be the wrong one... */
 710         if (front->lockedRect.left != front->lockedRect.right)
 711             IntersectRect(&draw_rect, &draw_rect, &front->lockedRect);
 712     }
 713     else
 714     {
 715         IntersectRect(&draw_rect, &draw_rect, rect);
 716     }
 717
 718     BitBlt(dst_dc, draw_rect.left - offset.x, draw_rect.top - offset.y,
 719             draw_rect.right - draw_rect.left, draw_rect.bottom - draw_rect.top,
 720             src_dc, draw_rect.left, draw_rect.top, SRCCOPY);
 721     ReleaseDC(window, dst_dc);
 722 }
 723
 724 static HRESULT swapchain_gdi_present(struct wined3d_swapchain *swapchain, const RECT *src_rect_in,
 725         const RECT *dst_rect_in, const RGNDATA *dirty_region, DWORD flags)
 726 {
 727     struct wined3d_surface *front, *back;
 728
 729     if (!swapchain->back_buffers)
 730     {
 731         WARN("Swapchain doesn't have a backbuffer, returning WINED3DERR_INVALIDCALL\n");
 732         return WINED3DERR_INVALIDCALL;
 733     }
 734     front = swapchain->front_buffer;
 735     back = swapchain->back_buffers[0];
 736
 737     /* Flip the DC. */
 738     {
 739         HDC tmp;
 740         tmp = front->hDC;
 741         front->hDC = back->hDC;
 742         back->hDC = tmp;
 743     }
 744
 745     /* Flip the DIBsection. */
 746     {
 747         HBITMAP tmp;
 748         tmp = front->dib.DIBsection;
 749         front->dib.DIBsection = back->dib.DIBsection;
 750         back->dib.DIBsection = tmp;
 751     }
 752
 753     /* Flip the surface data. */
 754     {
 755         void *tmp;
 756
 757         tmp = front->dib.bitmap_data;
 758         front->dib.bitmap_data = back->dib.bitmap_data;
 759         back->dib.bitmap_data = tmp;
 760
 761         tmp = front->resource.allocatedMemory;
 762         front->resource.allocatedMemory = back->resource.allocatedMemory;
 763         back->resource.allocatedMemory = tmp;
 764
 765         if (front->resource.heapMemory)
 766             ERR("GDI Surface %p has heap memory allocated.\n", front);
 767
 768         if (back->resource.heapMemory)
 769             ERR("GDI Surface %p has heap memory allocated.\n", back);
 770     }
 771
 772     /* Client_memory should not be different, but just in case. */
 773     {
 774         BOOL tmp;
 775         tmp = front->dib.client_memory;
 776         front->dib.client_memory = back->dib.client_memory;
 777         back->dib.client_memory = tmp;
 778     }
 779
 780     /* FPS support */
 781     if (TRACE_ON(fps))
 782     {
 783         static LONG prev_time, frames;
 784         DWORD time = GetTickCount();
 785
 786         ++frames;
 787
 788         /* every 1.5 seconds */
 789         if (time - prev_time > 1500)
 790         {
 791             TRACE_(fps)("@ approx %.2ffps\n", 1000.0 * frames / (time - prev_time));
 792             prev_time = time;
 793             frames = 0;
 794         }
 795     }
 796
 797     x11_copy_to_screen(swapchain, NULL);
 798
 799     return WINED3D_OK;
 800 }
 801
 802 static const struct wined3d_swapchain_ops swapchain_gdi_ops =
 803 {
 804     swapchain_gdi_present,
 805 };
 806
 807 void swapchain_update_render_to_fbo(struct wined3d_swapchain *swapchain)
 808 {
 809     RECT client_rect;
 810
 811     if (wined3d_settings.offscreen_rendering_mode != ORM_FBO)
 812         return;
 813
 814     if (!swapchain->presentParms.BackBufferCount)
 815     {
 816         TRACE("Single buffered rendering.\n");
 817         swapchain->render_to_fbo = FALSE;
 818         return;
 819     }
 820
 821     GetClientRect(swapchain->win_handle, &client_rect);
 822
 823     TRACE("Backbuffer %ux%u, window %ux%u.\n",
 824             swapchain->presentParms.BackBufferWidth,
 825             swapchain->presentParms.BackBufferHeight,
 826             client_rect.right, client_rect.bottom);
 827
 828     if (!wined3d_settings.always_offscreen
 829             && swapchain->presentParms.BackBufferWidth == client_rect.right
 830             && swapchain->presentParms.BackBufferHeight == client_rect.bottom)
 831     {
 832         TRACE("Backbuffer dimensions match window dimensions, rendering onscreen.\n");
 833         swapchain->render_to_fbo = FALSE;
 834         return;
 835     }
 836
 837     TRACE("Rendering to FBO.\n");
 838     swapchain->render_to_fbo = TRUE;
 839 }
 840
 841 /* Do not call while under the GL lock. */
 842 static HRESULT swapchain_init(struct wined3d_swapchain *swapchain, WINED3DSURFTYPE surface_type,
 843         struct wined3d_device *device, WINED3DPRESENT_PARAMETERS *present_parameters,
 844         void *parent, const struct wined3d_parent_ops *parent_ops)
 845 {
 846     const struct wined3d_adapter *adapter = device->adapter;
 847     const struct wined3d_format *format;
 848     BOOL displaymode_set = FALSE;
 849     WINED3DDISPLAYMODE mode;
 850     RECT client_rect;
 851     HWND window;
 852     HRESULT hr;
 853     UINT i;
 854
 855     if (present_parameters->BackBufferCount > WINED3DPRESENT_BACK_BUFFER_MAX)
 856     {
 857         FIXME("The application requested %u back buffers, this is not supported.\n",
 858                 present_parameters->BackBufferCount);
 859         return WINED3DERR_INVALIDCALL;
 860     }
 861
 862     if (present_parameters->BackBufferCount > 1)
 863     {
 864         FIXME("The application requested more than one back buffer, this is not properly supported.\n"
 865                 "Please configure the application to use double buffering (1 back buffer) if possible.\n");
 866     }
 867
 868     switch (surface_type)
 869     {
 870         case SURFACE_GDI:
 871             swapchain->swapchain_ops = &swapchain_gdi_ops;
 872             break;
 873
 874         case SURFACE_OPENGL:
 875             swapchain->swapchain_ops = &swapchain_gl_ops;
 876             break;
 877
 878         case SURFACE_UNKNOWN:
 879             FIXME("Caller tried to create a SURFACE_UNKNOWN swapchain.\n");
 880             return WINED3DERR_INVALIDCALL;
 881     }
 882
 883     window = present_parameters->hDeviceWindow ? present_parameters->hDeviceWindow : device->createParms.hFocusWindow;
 884
 885     swapchain->device = device;
 886     swapchain->parent = parent;
 887     swapchain->parent_ops = parent_ops;
 888     swapchain->ref = 1;
 889     swapchain->win_handle = window;
 890     swapchain->device_window = window;
 891
 892     wined3d_get_adapter_display_mode(device->wined3d, adapter->ordinal, &mode);
 893     swapchain->orig_width = mode.Width;
 894     swapchain->orig_height = mode.Height;
 895     swapchain->orig_fmt = mode.Format;
 896     format = wined3d_get_format(&adapter->gl_info, mode.Format);
 897
 898     GetClientRect(window, &client_rect);
 899     if (present_parameters->Windowed
 900             && (!present_parameters->BackBufferWidth || !present_parameters->BackBufferHeight
 901             || present_parameters->BackBufferFormat == WINED3DFMT_UNKNOWN))
 902     {
 903
 904         if (!present_parameters->BackBufferWidth)
 905         {
 906             present_parameters->BackBufferWidth = client_rect.right;
 907             TRACE("Updating width to %u.\n", present_parameters->BackBufferWidth);
 908         }
 909
 910         if (!present_parameters->BackBufferHeight)
 911         {
 912             present_parameters->BackBufferHeight = client_rect.bottom;
 913             TRACE("Updating height to %u.\n", present_parameters->BackBufferHeight);
 914         }
 915
 916         if (present_parameters->BackBufferFormat == WINED3DFMT_UNKNOWN)
 917         {
 918             present_parameters->BackBufferFormat = swapchain->orig_fmt;
 919             TRACE("Updating format to %s.\n", debug_d3dformat(swapchain->orig_fmt));
 920         }
 921     }
 922     swapchain->presentParms = *present_parameters;
 923     swapchain_update_render_to_fbo(swapchain);
 924
 925     TRACE("Creating front buffer.\n");
 926     hr = device->device_parent->ops->create_rendertarget(device->device_parent, parent,
 927             swapchain->presentParms.BackBufferWidth, swapchain->presentParms.BackBufferHeight,
 928             swapchain->presentParms.BackBufferFormat, swapchain->presentParms.MultiSampleType,
 929             swapchain->presentParms.MultiSampleQuality, TRUE /* Lockable */,
 930             &swapchain->front_buffer);
 931     if (FAILED(hr))
 932     {
 933         WARN("Failed to create front buffer, hr %#x.\n", hr);
 934         goto err;
 935     }
 936
 937     surface_set_container(swapchain->front_buffer, WINED3D_CONTAINER_SWAPCHAIN, swapchain);
 938     if (surface_type == SURFACE_OPENGL)
 939     {
 940         surface_modify_location(swapchain->front_buffer, SFLAG_INDRAWABLE, TRUE);
 941     }
 942
 943     /* MSDN says we're only allowed a single fullscreen swapchain per device,
 944      * so we should really check to see if there is a fullscreen swapchain
 945      * already. Does a single head count as full screen? */
 946
 947     if (!present_parameters->Windowed)
 948     {
 949         WINED3DDISPLAYMODE mode;
 950
 951         /* Change the display settings */
 952         mode.Width = present_parameters->BackBufferWidth;
 953         mode.Height = present_parameters->BackBufferHeight;
 954         mode.Format = present_parameters->BackBufferFormat;
 955         mode.RefreshRate = present_parameters->FullScreen_RefreshRateInHz;
 956
 957         hr = wined3d_device_set_display_mode(device, 0, &mode);
 958         if (FAILED(hr))
 959         {
 960             WARN("Failed to set display mode, hr %#x.\n", hr);
 961             goto err;
 962         }
 963         displaymode_set = TRUE;
 964     }
 965
 966     if (surface_type == SURFACE_OPENGL)
 967     {
 968         static const enum wined3d_format_id formats[] =
 969         {
 970             WINED3DFMT_D24_UNORM_S8_UINT,
 971             WINED3DFMT_D32_UNORM,
 972             WINED3DFMT_R24_UNORM_X8_TYPELESS,
 973             WINED3DFMT_D16_UNORM,
 974             WINED3DFMT_S1_UINT_D15_UNORM
 975         };
 976
 977         const struct wined3d_gl_info *gl_info = &device->adapter->gl_info;
 978
 979         swapchain->context = HeapAlloc(GetProcessHeap(), 0, sizeof(swapchain->context));
 980         if (!swapchain->context)
 981         {
 982             ERR("Failed to create the context array.\n");
 983             hr = E_OUTOFMEMORY;
 984             goto err;
 985         }
 986         swapchain->num_contexts = 1;
 987
 988         /* In WGL both color, depth and stencil are features of a pixel format. In case of D3D they are separate.
 989          * You are able to add a depth + stencil surface at a later stage when you need it.
 990          * In order to support this properly in WineD3D we need the ability to recreate the opengl context and
 991          * drawable when this is required. This is very tricky as we need to reapply ALL opengl states for the new
 992          * context, need torecreate shaders, textures and other resources.
 993          *
 994          * The context manager already takes care of the state problem and for the other tasks code from Reset
 995          * can be used. These changes are way to risky during the 1.0 code freeze which is taking place right now.
 996          * Likely a lot of other new bugs will be exposed. For that reason request a depth stencil surface all the
 997          * time. It can cause a slight performance hit but fixes a lot of regressions. A fixme reminds of that this
 998          * issue needs to be fixed. */
 999         for (i = 0; i < (sizeof(formats) / sizeof(*formats)); i++)
1000         {
1001             swapchain->ds_format = wined3d_get_format(gl_info, formats[i]);
1002             swapchain->context[0] = context_create(swapchain, swapchain->front_buffer, swapchain->ds_format);
1003             if (swapchain->context[0]) break;
1004             TRACE("Depth stencil format %s is not supported, trying next format\n",
1005                   debug_d3dformat(formats[i]));
1006         }
1007
1008         if (!swapchain->context[0])
1009         {
1010             WARN("Failed to create context.\n");
1011             hr = WINED3DERR_NOTAVAILABLE;
1012             goto err;
1013         }
1014
1015         if (!present_parameters->EnableAutoDepthStencil
1016                 || swapchain->presentParms.AutoDepthStencilFormat != swapchain->ds_format->id)
1017         {
1018             FIXME("Add OpenGL context recreation support to context_validate_onscreen_formats\n");
1019         }
1020         context_release(swapchain->context[0]);
1021     }
1022
1023     if (swapchain->presentParms.BackBufferCount > 0)
1024     {
1025         swapchain->back_buffers = HeapAlloc(GetProcessHeap(), 0,
1026                 sizeof(*swapchain->back_buffers) * swapchain->presentParms.BackBufferCount);
1027         if (!swapchain->back_buffers)
1028         {
1029             ERR("Failed to allocate backbuffer array memory.\n");
1030             hr = E_OUTOFMEMORY;
1031             goto err;
1032         }
1033
1034         for (i = 0; i < swapchain->presentParms.BackBufferCount; ++i)
1035         {
1036             TRACE("Creating back buffer %u.\n", i);
1037             hr = device->device_parent->ops->create_rendertarget(device->device_parent, parent,
1038                     swapchain->presentParms.BackBufferWidth, swapchain->presentParms.BackBufferHeight,
1039                     swapchain->presentParms.BackBufferFormat, swapchain->presentParms.MultiSampleType,
1040                     swapchain->presentParms.MultiSampleQuality, TRUE /* Lockable */,
1041                     &swapchain->back_buffers[i]);
1042             if (FAILED(hr))
1043             {
1044                 WARN("Failed to create back buffer %u, hr %#x.\n", i, hr);
1045                 goto err;
1046             }
1047
1048             surface_set_container(swapchain->back_buffers[i], WINED3D_CONTAINER_SWAPCHAIN, swapchain);
1049         }
1050     }
1051
1052     /* Swapchains share the depth/stencil buffer, so only create a single depthstencil surface. */
1053     if (present_parameters->EnableAutoDepthStencil && surface_type == SURFACE_OPENGL)
1054     {
1055         TRACE("Creating depth/stencil buffer.\n");
1056         if (!device->auto_depth_stencil)
1057         {
1058             hr = device->device_parent->ops->create_depth_stencil(device->device_parent,
1059                     swapchain->presentParms.BackBufferWidth, swapchain->presentParms.BackBufferHeight,
1060                     swapchain->presentParms.AutoDepthStencilFormat, swapchain->presentParms.MultiSampleType,
1061                     swapchain->presentParms.MultiSampleQuality, FALSE /* FIXME: Discard */,
1062                     &device->auto_depth_stencil);
1063             if (FAILED(hr))
1064             {
1065                 WARN("Failed to create the auto depth stencil, hr %#x.\n", hr);
1066                 goto err;
1067             }
1068
1069             surface_set_container(device->auto_depth_stencil, WINED3D_CONTAINER_NONE, NULL);
1070         }
1071     }
1072
1073     wined3d_swapchain_get_gamma_ramp(swapchain, &swapchain->orig_gamma);
1074
1075     return WINED3D_OK;
1076
1077 err:
1078     if (displaymode_set)
1079     {
1080         DEVMODEW devmode;
1081
1082         ClipCursor(NULL);
1083
1084         /* Change the display settings */
1085         memset(&devmode, 0, sizeof(devmode));
1086         devmode.dmSize = sizeof(devmode);
1087         devmode.dmFields = DM_BITSPERPEL | DM_PELSWIDTH | DM_PELSHEIGHT;
1088         devmode.dmBitsPerPel = format->byte_count * CHAR_BIT;
1089         devmode.dmPelsWidth = swapchain->orig_width;
1090         devmode.dmPelsHeight = swapchain->orig_height;
1091         ChangeDisplaySettingsExW(adapter->DeviceName, &devmode, NULL, CDS_FULLSCREEN, NULL);
1092     }
1093
1094     if (swapchain->back_buffers)
1095     {
1096         for (i = 0; i < swapchain->presentParms.BackBufferCount; ++i)
1097         {
1098             if (swapchain->back_buffers[i])
1099             {
1100                 surface_set_container(swapchain->back_buffers[i], WINED3D_CONTAINER_NONE, NULL);
1101                 wined3d_surface_decref(swapchain->back_buffers[i]);
1102             }
1103         }
1104         HeapFree(GetProcessHeap(), 0, swapchain->back_buffers);
1105     }
1106
1107     if (swapchain->context)
1108     {
1109         if (swapchain->context[0])
1110         {
1111             context_release(swapchain->context[0]);
1112             context_destroy(device, swapchain->context[0]);
1113             swapchain->num_contexts = 0;
1114         }
1115         HeapFree(GetProcessHeap(), 0, swapchain->context);
1116     }
1117
1118     if (swapchain->front_buffer)
1119     {
1120         surface_set_container(swapchain->front_buffer, WINED3D_CONTAINER_NONE, NULL);
1121         wined3d_surface_decref(swapchain->front_buffer);
1122     }
1123
1124     return hr;
1125 }
1126
1127 /* Do not call while under the GL lock. */
1128 HRESULT CDECL wined3d_swapchain_create(struct wined3d_device *device,
1129         WINED3DPRESENT_PARAMETERS *present_parameters, WINED3DSURFTYPE surface_type,
1130         void *parent, const struct wined3d_parent_ops *parent_ops,
1131         struct wined3d_swapchain **swapchain)
1132 {
1133     struct wined3d_swapchain *object;
1134     HRESULT hr;
1135
1136     TRACE("device %p, present_parameters %p, swapchain %p, parent %p, surface_type %#x.\n",
1137             device, present_parameters, swapchain, parent, surface_type);
1138
1139     object = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*object));
1140     if (!object)
1141     {
1142         ERR("Failed to allocate swapchain memory.\n");
1143         return E_OUTOFMEMORY;
1144     }
1145
1146     hr = swapchain_init(object, surface_type, device, present_parameters, parent, parent_ops);
1147     if (FAILED(hr))
1148     {
1149         WARN("Failed to initialize swapchain, hr %#x.\n", hr);
1150         HeapFree(GetProcessHeap(), 0, object);
1151         return hr;
1152     }
1153
1154     TRACE("Created swapchain %p.\n", object);
1155     *swapchain = object;
1156
1157     return WINED3D_OK;
1158 }
1159
1160 /* Do not call while under the GL lock. */
1161 static struct wined3d_context *swapchain_create_context(struct wined3d_swapchain *swapchain)
1162 {
1163     struct wined3d_context **newArray;
1164     struct wined3d_context *ctx;
1165
1166     TRACE("Creating a new context for swapchain %p, thread %u.\n", swapchain, GetCurrentThreadId());
1167
1168     if (!(ctx = context_create(swapchain, swapchain->front_buffer, swapchain->ds_format)))
1169     {
1170         ERR("Failed to create a new context for the swapchain\n");
1171         return NULL;
1172     }
1173     context_release(ctx);
1174
1175     newArray = HeapAlloc(GetProcessHeap(), 0, sizeof(*newArray) * (swapchain->num_contexts + 1));
1176     if(!newArray) {
1177         ERR("Out of memory when trying to allocate a new context array\n");
1178         context_destroy(swapchain->device, ctx);
1179         return NULL;
1180     }
1181     memcpy(newArray, swapchain->context, sizeof(*newArray) * swapchain->num_contexts);
1182     HeapFree(GetProcessHeap(), 0, swapchain->context);
1183     newArray[swapchain->num_contexts] = ctx;
1184     swapchain->context = newArray;
1185     swapchain->num_contexts++;
1186
1187     TRACE("Returning context %p\n", ctx);
1188     return ctx;
1189 }
1190
1191 void swapchain_destroy_contexts(struct wined3d_swapchain *swapchain)
1192 {
1193     unsigned int i;
1194
1195     for (i = 0; i < swapchain->num_contexts; ++i)
1196     {
1197         context_destroy(swapchain->device, swapchain->context[i]);
1198     }
1199     swapchain->num_contexts = 0;
1200 }
1201
1202 struct wined3d_context *swapchain_get_context(struct wined3d_swapchain *swapchain)
1203 {
1204     DWORD tid = GetCurrentThreadId();
1205     unsigned int i;
1206
1207     for (i = 0; i < swapchain->num_contexts; ++i)
1208     {
1209         if (swapchain->context[i]->tid == tid)
1210             return swapchain->context[i];
1211     }
1212
1213     /* Create a new context for the thread */
1214     return swapchain_create_context(swapchain);
1215 }
1216
1217 void get_drawable_size_swapchain(const struct wined3d_context *context, UINT *width, UINT *height)
1218 {
1219     /* The drawable size of an onscreen drawable is the surface size.
1220      * (Actually: The window size, but the surface is created in window size) */
1221     *width = context->current_rt->resource.width;
1222     *height = context->current_rt->resource.height;
1223 }
1224
1225 HDC swapchain_get_backup_dc(struct wined3d_swapchain *swapchain)
1226 {
1227     if (!swapchain->backup_dc)
1228     {
1229         TRACE("Creating the backup window for swapchain %p.\n", swapchain);
1230
1231         if (!(swapchain->backup_wnd = CreateWindowA(WINED3D_OPENGL_WINDOW_CLASS_NAME, "WineD3D fake window",
1232                 WS_OVERLAPPEDWINDOW, 10, 10, 10, 10, NULL, NULL, NULL, NULL)))
1233         {
1234             ERR("Failed to create a window.\n");
1235             return NULL;
1236         }
1237
1238         if (!(swapchain->backup_dc = GetDC(swapchain->backup_wnd)))
1239         {
1240             ERR("Failed to get a DC.\n");
1241             DestroyWindow(swapchain->backup_wnd);
1242             swapchain->backup_wnd = NULL;
1243             return NULL;
1244         }
1245     }
1246
1247     return swapchain->backup_dc;
1248 }
1249
1250 void swapchain_update_draw_bindings(struct wined3d_swapchain *swapchain)
1251 {
1252     UINT i;
1253
1254     surface_update_draw_binding(swapchain->front_buffer);
1255
1256     for (i = 0; i < swapchain->presentParms.BackBufferCount; ++i)
1257     {
1258         surface_update_draw_binding(swapchain->back_buffers[i]);
1259     }
1260 }