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 "wine/port.h"
  25 #include "wined3d_private.h"
  26
  27 WINE_DEFAULT_DEBUG_CHANNEL(d3d);
  28 WINE_DECLARE_DEBUG_CHANNEL(fps);
  29
  30 /* Do not call while under the GL lock. */
  31 static void swapchain_cleanup(struct wined3d_swapchain *swapchain)
  32 {
  33     struct wined3d_display_mode mode;
  34     HRESULT hr;
  35     UINT i;
  36
  37     TRACE("Destroying swapchain %p.\n", swapchain);
  38
  39     wined3d_swapchain_set_gamma_ramp(swapchain, 0, &swapchain->orig_gamma);
  40
  41     /* Release the swapchain's draw buffers. Make sure swapchain->back_buffers[0]
  42      * is the last buffer to be destroyed, FindContext() depends on that. */
  43     if (swapchain->front_buffer)
  44     {
  45         if (swapchain->front_buffer->container.type == WINED3D_CONTAINER_SWAPCHAIN)
  46             surface_set_container(swapchain->front_buffer, WINED3D_CONTAINER_NONE, NULL);
  47         if (wined3d_surface_decref(swapchain->front_buffer))
  48             WARN("Something's still holding the front buffer (%p).\n", swapchain->front_buffer);
  49         swapchain->front_buffer = NULL;
  50     }
  51
  52     if (swapchain->back_buffers)
  53     {
  54         i = swapchain->desc.backbuffer_count;
  55
  56         while (i--)
  57         {
  58             if (swapchain->back_buffers[i]->container.type == WINED3D_CONTAINER_SWAPCHAIN)
  59                 surface_set_container(swapchain->back_buffers[i], WINED3D_CONTAINER_NONE, NULL);
  60             if (wined3d_surface_decref(swapchain->back_buffers[i]))
  61                 WARN("Something's still holding back buffer %u (%p).\n", i, swapchain->back_buffers[i]);
  62         }
  63         HeapFree(GetProcessHeap(), 0, swapchain->back_buffers);
  64         swapchain->back_buffers = NULL;
  65     }
  66
  67     for (i = 0; i < swapchain->num_contexts; ++i)
  68     {
  69         context_destroy(swapchain->device, swapchain->context[i]);
  70     }
  71     HeapFree(GetProcessHeap(), 0, swapchain->context);
  72
  73     /* Restore the screen resolution if we rendered in fullscreen.
  74      * This will restore the screen resolution to what it was before creating
  75      * the swapchain. In case of d3d8 and d3d9 this will be the original
  76      * desktop resolution. In case of d3d7 this will be a NOP because ddraw
  77      * sets the resolution before starting up Direct3D, thus orig_width and
  78      * orig_height will be equal to the modes in the presentation params. */
  79     if (!swapchain->desc.windowed && swapchain->desc.auto_restore_display_mode)
  80     {
  81         mode.width = swapchain->orig_width;
  82         mode.height = swapchain->orig_height;
  83         mode.refresh_rate = 0;
  84         mode.format_id = swapchain->orig_fmt;
  85         mode.scanline_ordering = WINED3D_SCANLINE_ORDERING_UNKNOWN;
  86         if (FAILED(hr = wined3d_set_adapter_display_mode(swapchain->device->wined3d,
  87                 swapchain->device->adapter->ordinal, &mode)))
  88             ERR("Failed to restore display mode, hr %#x.\n", hr);
  89     }
  90
  91     if (swapchain->backup_dc)
  92     {
  93         TRACE("Destroying backup wined3d window %p, dc %p.\n", swapchain->backup_wnd, swapchain->backup_dc);
  94
  95         ReleaseDC(swapchain->backup_wnd, swapchain->backup_dc);
  96         DestroyWindow(swapchain->backup_wnd);
  97     }
  98 }
  99
 100 ULONG CDECL wined3d_swapchain_incref(struct wined3d_swapchain *swapchain)
 101 {
 102     ULONG refcount = InterlockedIncrement(&swapchain->ref);
 103
 104     TRACE("%p increasing refcount to %u.\n", swapchain, refcount);
 105
 106     return refcount;
 107 }
 108
 109 /* Do not call while under the GL lock. */
 110 ULONG CDECL wined3d_swapchain_decref(struct wined3d_swapchain *swapchain)
 111 {
 112     ULONG refcount = InterlockedDecrement(&swapchain->ref);
 113
 114     TRACE("%p decreasing refcount to %u.\n", swapchain, refcount);
 115
 116     if (!refcount)
 117     {
 118         swapchain_cleanup(swapchain);
 119         swapchain->parent_ops->wined3d_object_destroyed(swapchain->parent);
 120         HeapFree(GetProcessHeap(), 0, swapchain);
 121     }
 122
 123     return refcount;
 124 }
 125
 126 void * CDECL wined3d_swapchain_get_parent(const struct wined3d_swapchain *swapchain)
 127 {
 128     TRACE("swapchain %p.\n", swapchain);
 129
 130     return swapchain->parent;
 131 }
 132
 133 void CDECL wined3d_swapchain_set_window(struct wined3d_swapchain *swapchain, HWND window)
 134 {
 135     if (!window)
 136         window = swapchain->device_window;
 137     if (window == swapchain->win_handle)
 138         return;
 139
 140     TRACE("Setting swapchain %p window from %p to %p.\n",
 141             swapchain, swapchain->win_handle, window);
 142     swapchain->win_handle = window;
 143 }
 144
 145 HRESULT CDECL wined3d_swapchain_present(struct wined3d_swapchain *swapchain,
 146         const RECT *src_rect, const RECT *dst_rect, HWND dst_window_override,
 147         const RGNDATA *dirty_region, DWORD flags)
 148 {
 149     TRACE("swapchain %p, src_rect %s, dst_rect %s, dst_window_override %p, dirty_region %p, flags %#x.\n",
 150             swapchain, wine_dbgstr_rect(src_rect), wine_dbgstr_rect(dst_rect),
 151             dst_window_override, dirty_region, flags);
 152
 153     if (flags)
 154         FIXME("Ignoring flags %#x.\n", flags);
 155
 156     if (!swapchain->back_buffers)
 157     {
 158         WARN("Swapchain doesn't have a backbuffer, returning WINED3DERR_INVALIDCALL\n");
 159         return WINED3DERR_INVALIDCALL;
 160     }
 161
 162     wined3d_swapchain_set_window(swapchain, dst_window_override);
 163
 164     swapchain->swapchain_ops->swapchain_present(swapchain, src_rect, dst_rect, dirty_region, flags);
 165
 166     return WINED3D_OK;
 167 }
 168
 169 HRESULT CDECL wined3d_swapchain_get_front_buffer_data(const struct wined3d_swapchain *swapchain,
 170         struct wined3d_surface *dst_surface)
 171 {
 172     struct wined3d_surface *src_surface;
 173     RECT src_rect, dst_rect;
 174
 175     TRACE("swapchain %p, dst_surface %p.\n", swapchain, dst_surface);
 176
 177     src_surface = swapchain->front_buffer;
 178     SetRect(&src_rect, 0, 0, src_surface->resource.width, src_surface->resource.height);
 179     dst_rect = src_rect;
 180
 181     if (swapchain->desc.windowed)
 182     {
 183         MapWindowPoints(swapchain->win_handle, NULL, (POINT *)&dst_rect, 2);
 184         FIXME("Using destination rect %s in windowed mode, this is likely wrong.\n",
 185                 wine_dbgstr_rect(&dst_rect));
 186     }
 187
 188     return wined3d_surface_blt(dst_surface, &dst_rect, src_surface, &src_rect, 0, NULL, WINED3D_TEXF_POINT);
 189 }
 190
 191 struct wined3d_surface * CDECL wined3d_swapchain_get_back_buffer(const struct wined3d_swapchain *swapchain,
 192         UINT back_buffer_idx, enum wined3d_backbuffer_type type)
 193 {
 194     TRACE("swapchain %p, back_buffer_idx %u, type %#x.\n",
 195             swapchain, back_buffer_idx, type);
 196
 197     /* Return invalid if there is no backbuffer array, otherwise it will
 198      * crash when ddraw is used (there swapchain->back_buffers is always
 199      * NULL). We need this because this function is called from
 200      * stateblock_init_default_state() to get the default scissorrect
 201      * dimensions. */
 202     if (!swapchain->back_buffers || back_buffer_idx >= swapchain->desc.backbuffer_count)
 203     {
 204         WARN("Invalid back buffer index.\n");
 205         /* Native d3d9 doesn't set NULL here, just as wine's d3d9. But set it
 206          * here in wined3d to avoid problems in other libs. */
 207         return NULL;
 208     }
 209
 210     TRACE("Returning back buffer %p.\n", swapchain->back_buffers[back_buffer_idx]);
 211
 212     return swapchain->back_buffers[back_buffer_idx];
 213 }
 214
 215 HRESULT CDECL wined3d_swapchain_get_raster_status(const struct wined3d_swapchain *swapchain,
 216         struct wined3d_raster_status *raster_status)
 217 {
 218     TRACE("swapchain %p, raster_status %p.\n", swapchain, raster_status);
 219
 220     return wined3d_get_adapter_raster_status(swapchain->device->wined3d,
 221             swapchain->device->adapter->ordinal, raster_status);
 222 }
 223
 224 HRESULT CDECL wined3d_swapchain_get_display_mode(const struct wined3d_swapchain *swapchain,
 225         struct wined3d_display_mode *mode, enum wined3d_display_rotation *rotation)
 226 {
 227     HRESULT hr;
 228
 229     TRACE("swapchain %p, mode %p, rotation %p.\n", swapchain, mode, rotation);
 230
 231     hr = wined3d_get_adapter_display_mode(swapchain->device->wined3d,
 232             swapchain->device->adapter->ordinal, mode, rotation);
 233
 234     TRACE("Returning w %u, h %u, refresh rate %u, format %s.\n",
 235             mode->width, mode->height, mode->refresh_rate, debug_d3dformat(mode->format_id));
 236
 237     return hr;
 238 }
 239
 240 struct wined3d_device * CDECL wined3d_swapchain_get_device(const struct wined3d_swapchain *swapchain)
 241 {
 242     TRACE("swapchain %p.\n", swapchain);
 243
 244     return swapchain->device;
 245 }
 246
 247 HRESULT CDECL wined3d_swapchain_get_desc(const struct wined3d_swapchain *swapchain,
 248         struct wined3d_swapchain_desc *desc)
 249 {
 250     TRACE("swapchain %p, desc %p.\n", swapchain, desc);
 251
 252     *desc = swapchain->desc;
 253
 254     return WINED3D_OK;
 255 }
 256
 257 HRESULT CDECL wined3d_swapchain_set_gamma_ramp(const struct wined3d_swapchain *swapchain,
 258         DWORD flags, const struct wined3d_gamma_ramp *ramp)
 259 {
 260     HDC dc;
 261
 262     TRACE("swapchain %p, flags %#x, ramp %p.\n", swapchain, flags, ramp);
 263
 264     if (flags)
 265         FIXME("Ignoring flags %#x.\n", flags);
 266
 267     dc = GetDC(swapchain->device_window);
 268     SetDeviceGammaRamp(dc, (void *)ramp);
 269     ReleaseDC(swapchain->device_window, dc);
 270
 271     return WINED3D_OK;
 272 }
 273
 274 HRESULT CDECL wined3d_swapchain_get_gamma_ramp(const struct wined3d_swapchain *swapchain,
 275         struct wined3d_gamma_ramp *ramp)
 276 {
 277     HDC dc;
 278
 279     TRACE("swapchain %p, ramp %p.\n", swapchain, ramp);
 280
 281     dc = GetDC(swapchain->device_window);
 282     GetDeviceGammaRamp(dc, ramp);
 283     ReleaseDC(swapchain->device_window, dc);
 284
 285     return WINED3D_OK;
 286 }
 287
 288 /* A GL context is provided by the caller */
 289 static void swapchain_blit(const struct wined3d_swapchain *swapchain,
 290         struct wined3d_context *context, const RECT *src_rect, const RECT *dst_rect)
 291 {
 292     struct wined3d_surface *backbuffer = swapchain->back_buffers[0];
 293     UINT src_w = src_rect->right - src_rect->left;
 294     UINT src_h = src_rect->bottom - src_rect->top;
 295     GLenum gl_filter;
 296     const struct wined3d_gl_info *gl_info = context->gl_info;
 297     RECT win_rect;
 298     UINT win_h;
 299
 300     TRACE("swapchain %p, context %p, src_rect %s, dst_rect %s.\n",
 301             swapchain, context, wine_dbgstr_rect(src_rect), wine_dbgstr_rect(dst_rect));
 302
 303     if (src_w == dst_rect->right - dst_rect->left && src_h == dst_rect->bottom - dst_rect->top)
 304         gl_filter = GL_NEAREST;
 305     else
 306         gl_filter = GL_LINEAR;
 307
 308     GetClientRect(swapchain->win_handle, &win_rect);
 309     win_h = win_rect.bottom - win_rect.top;
 310
 311     if (gl_info->fbo_ops.glBlitFramebuffer && is_identity_fixup(backbuffer->resource.format->color_fixup))
 312     {
 313         DWORD location = SFLAG_INTEXTURE;
 314
 315         if (backbuffer->resource.multisample_type)
 316         {
 317             location = SFLAG_INRB_RESOLVED;
 318             surface_load_location(backbuffer, location, NULL);
 319         }
 320
 321         ENTER_GL();
 322         context_apply_fbo_state_blit(context, GL_READ_FRAMEBUFFER, backbuffer, NULL, location);
 323         gl_info->gl_ops.gl.p_glReadBuffer(GL_COLOR_ATTACHMENT0);
 324         context_check_fbo_status(context, GL_READ_FRAMEBUFFER);
 325
 326         context_apply_fbo_state_blit(context, GL_DRAW_FRAMEBUFFER, swapchain->front_buffer, NULL, SFLAG_INDRAWABLE);
 327         context_set_draw_buffer(context, GL_BACK);
 328         context_invalidate_state(context, STATE_FRAMEBUFFER);
 329
 330         gl_info->gl_ops.gl.p_glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
 331         context_invalidate_state(context, STATE_RENDER(WINED3D_RS_COLORWRITEENABLE));
 332         context_invalidate_state(context, STATE_RENDER(WINED3D_RS_COLORWRITEENABLE1));
 333         context_invalidate_state(context, STATE_RENDER(WINED3D_RS_COLORWRITEENABLE2));
 334         context_invalidate_state(context, STATE_RENDER(WINED3D_RS_COLORWRITEENABLE3));
 335
 336         gl_info->gl_ops.gl.p_glDisable(GL_SCISSOR_TEST);
 337         context_invalidate_state(context, STATE_RENDER(WINED3D_RS_SCISSORTESTENABLE));
 338
 339         /* Note that the texture is upside down */
 340         gl_info->fbo_ops.glBlitFramebuffer(src_rect->left, src_rect->top, src_rect->right, src_rect->bottom,
 341                 dst_rect->left, win_h - dst_rect->top, dst_rect->right, win_h - dst_rect->bottom,
 342                 GL_COLOR_BUFFER_BIT, gl_filter);
 343         checkGLcall("Swapchain present blit(EXT_framebuffer_blit)\n");
 344         LEAVE_GL();
 345     }
 346     else
 347     {
 348         struct wined3d_device *device = swapchain->device;
 349         struct wined3d_context *context2;
 350         float tex_left = src_rect->left;
 351         float tex_top = src_rect->top;
 352         float tex_right = src_rect->right;
 353         float tex_bottom = src_rect->bottom;
 354
 355         context2 = context_acquire(device, swapchain->back_buffers[0]);
 356         context_apply_blit_state(context2, device);
 357
 358         if (backbuffer->flags & SFLAG_NORMCOORD)
 359         {
 360             tex_left /= src_w;
 361             tex_right /= src_w;
 362             tex_top /= src_h;
 363             tex_bottom /= src_h;
 364         }
 365
 366         if (is_complex_fixup(backbuffer->resource.format->color_fixup))
 367             gl_filter = GL_NEAREST;
 368
 369         ENTER_GL();
 370         context_apply_fbo_state_blit(context2, GL_FRAMEBUFFER, swapchain->front_buffer, NULL, SFLAG_INDRAWABLE);
 371
 372         /* Set up the texture. The surface is not in a wined3d_texture
 373          * container, so there are no D3D texture settings to dirtify. */
 374         device->blitter->set_shader(device->blit_priv, context2, backbuffer);
 375         gl_info->gl_ops.gl.p_glTexParameteri(backbuffer->texture_target, GL_TEXTURE_MIN_FILTER, gl_filter);
 376         gl_info->gl_ops.gl.p_glTexParameteri(backbuffer->texture_target, GL_TEXTURE_MAG_FILTER, gl_filter);
 377
 378         context_set_draw_buffer(context, GL_BACK);
 379
 380         /* Set the viewport to the destination rectandle, disable any projection
 381          * transformation set up by context_apply_blit_state(), and draw a
 382          * (-1,-1)-(1,1) quad.
 383          *
 384          * Back up viewport and matrix to avoid breaking last_was_blit
 385          *
 386          * Note that context_apply_blit_state() set up viewport and ortho to
 387          * match the surface size - we want the GL drawable(=window) size. */
 388         gl_info->gl_ops.gl.p_glPushAttrib(GL_VIEWPORT_BIT);
 389         gl_info->gl_ops.gl.p_glViewport(dst_rect->left, win_h - dst_rect->bottom,
 390                 dst_rect->right, win_h - dst_rect->top);
 391         gl_info->gl_ops.gl.p_glMatrixMode(GL_PROJECTION);
 392         gl_info->gl_ops.gl.p_glPushMatrix();
 393         gl_info->gl_ops.gl.p_glLoadIdentity();
 394
 395         gl_info->gl_ops.gl.p_glBegin(GL_QUADS);
 396             /* bottom left */
 397             gl_info->gl_ops.gl.p_glTexCoord2f(tex_left, tex_bottom);
 398             gl_info->gl_ops.gl.p_glVertex2i(-1, -1);
 399
 400             /* top left */
 401             gl_info->gl_ops.gl.p_glTexCoord2f(tex_left, tex_top);
 402             gl_info->gl_ops.gl.p_glVertex2i(-1, 1);
 403
 404             /* top right */
 405             gl_info->gl_ops.gl.p_glTexCoord2f(tex_right, tex_top);
 406             gl_info->gl_ops.gl.p_glVertex2i(1, 1);
 407
 408             /* bottom right */
 409             gl_info->gl_ops.gl.p_glTexCoord2f(tex_right, tex_bottom);
 410             gl_info->gl_ops.gl.p_glVertex2i(1, -1);
 411         gl_info->gl_ops.gl.p_glEnd();
 412
 413         gl_info->gl_ops.gl.p_glPopMatrix();
 414         gl_info->gl_ops.gl.p_glPopAttrib();
 415
 416         device->blitter->unset_shader(context->gl_info);
 417         checkGLcall("Swapchain present blit(manual)\n");
 418         LEAVE_GL();
 419
 420         context_release(context2);
 421     }
 422 }
 423
 424 static void swapchain_gl_present(struct wined3d_swapchain *swapchain, const RECT *src_rect_in,
 425         const RECT *dst_rect_in, const RGNDATA *dirty_region, DWORD flags)
 426 {
 427     struct wined3d_surface *back_buffer = swapchain->back_buffers[0];
 428     const struct wined3d_fb_state *fb = &swapchain->device->fb;
 429     const struct wined3d_gl_info *gl_info;
 430     struct wined3d_context *context;
 431     RECT src_rect, dst_rect;
 432     BOOL render_to_fbo;
 433
 434     context = context_acquire(swapchain->device, back_buffer);
 435     if (!context->valid)
 436     {
 437         context_release(context);
 438         WARN("Invalid context, skipping present.\n");
 439         return;
 440     }
 441
 442     gl_info = context->gl_info;
 443
 444     /* Render the cursor onto the back buffer, using our nifty directdraw blitting code :-) */
 445     if (swapchain->device->bCursorVisible &&
 446         swapchain->device->cursorTexture &&
 447         !swapchain->device->hardwareCursor)
 448     {
 449         struct wined3d_surface cursor;
 450         RECT destRect =
 451         {
 452             swapchain->device->xScreenSpace - swapchain->device->xHotSpot,
 453             swapchain->device->yScreenSpace - swapchain->device->yHotSpot,
 454             swapchain->device->xScreenSpace + swapchain->device->cursorWidth - swapchain->device->xHotSpot,
 455             swapchain->device->yScreenSpace + swapchain->device->cursorHeight - swapchain->device->yHotSpot,
 456         };
 457         TRACE("Rendering the cursor. Creating fake surface at %p\n", &cursor);
 458         /* Build a fake surface to call the Blitting code. It is not possible to use the interface passed by
 459          * the application because we are only supposed to copy the information out. Using a fake surface
 460          * allows us to use the Blitting engine and avoid copying the whole texture -> render target blitting code.
 461          */
 462         memset(&cursor, 0, sizeof(cursor));
 463         cursor.resource.ref = 1;
 464         cursor.resource.device = swapchain->device;
 465         cursor.resource.pool = WINED3D_POOL_SCRATCH;
 466         cursor.resource.format = wined3d_get_format(gl_info, WINED3DFMT_B8G8R8A8_UNORM);
 467         cursor.resource.type = WINED3D_RTYPE_SURFACE;
 468         cursor.texture_name = swapchain->device->cursorTexture;
 469         cursor.texture_target = GL_TEXTURE_2D;
 470         cursor.texture_level = 0;
 471         cursor.resource.width = swapchain->device->cursorWidth;
 472         cursor.resource.height = swapchain->device->cursorHeight;
 473         /* The cursor must have pow2 sizes */
 474         cursor.pow2Width = cursor.resource.width;
 475         cursor.pow2Height = cursor.resource.height;
 476         /* The surface is in the texture */
 477         cursor.flags |= SFLAG_INTEXTURE;
 478         /* DDBLT_KEYSRC will cause BltOverride to enable the alpha test with GL_NOTEQUAL, 0.0,
 479          * which is exactly what we want :-)
 480          */
 481         if (swapchain->desc.windowed)
 482             MapWindowPoints(NULL, swapchain->win_handle, (POINT *)&destRect, 2);
 483         wined3d_surface_blt(back_buffer, &destRect, &cursor, NULL, WINEDDBLT_KEYSRC,
 484                 NULL, WINED3D_TEXF_POINT);
 485     }
 486
 487     if (swapchain->device->logo_surface)
 488     {
 489         struct wined3d_surface *src_surface = swapchain->device->logo_surface;
 490         RECT rect = {0, 0, src_surface->resource.width, src_surface->resource.height};
 491
 492         /* Blit the logo into the upper left corner of the drawable. */
 493         wined3d_surface_blt(back_buffer, &rect, src_surface, &rect, WINEDDBLT_KEYSRC,
 494                 NULL, WINED3D_TEXF_POINT);
 495     }
 496
 497     TRACE("Presenting HDC %p.\n", context->hdc);
 498
 499     render_to_fbo = swapchain->render_to_fbo;
 500
 501     if (src_rect_in)
 502     {
 503         src_rect = *src_rect_in;
 504         if (!render_to_fbo && (src_rect.left || src_rect.top
 505                 || src_rect.right != swapchain->desc.backbuffer_width
 506                 || src_rect.bottom != swapchain->desc.backbuffer_height))
 507         {
 508             render_to_fbo = TRUE;
 509         }
 510     }
 511     else
 512     {
 513         src_rect.left = 0;
 514         src_rect.top = 0;
 515         src_rect.right = swapchain->desc.backbuffer_width;
 516         src_rect.bottom = swapchain->desc.backbuffer_height;
 517     }
 518
 519     if (dst_rect_in)
 520         dst_rect = *dst_rect_in;
 521     else
 522         GetClientRect(swapchain->win_handle, &dst_rect);
 523
 524     if (!render_to_fbo && (dst_rect.left || dst_rect.top
 525             || dst_rect.right != swapchain->desc.backbuffer_width
 526             || dst_rect.bottom != swapchain->desc.backbuffer_height))
 527         render_to_fbo = TRUE;
 528
 529     /* Rendering to a window of different size, presenting partial rectangles,
 530      * or rendering to a different window needs help from FBO_blit or a textured
 531      * draw. Render the swapchain to a FBO in the future.
 532      *
 533      * Note that FBO_blit from the backbuffer to the frontbuffer cannot solve
 534      * all these issues - this fails if the window is smaller than the backbuffer.
 535      */
 536     if (!swapchain->render_to_fbo && render_to_fbo && wined3d_settings.offscreen_rendering_mode == ORM_FBO)
 537     {
 538         surface_load_location(back_buffer, SFLAG_INTEXTURE, NULL);
 539         surface_modify_location(back_buffer, SFLAG_INDRAWABLE, FALSE);
 540         swapchain->render_to_fbo = TRUE;
 541         swapchain_update_draw_bindings(swapchain);
 542     }
 543     else
 544     {
 545         surface_load_location(back_buffer, back_buffer->draw_binding, NULL);
 546     }
 547
 548     if (swapchain->render_to_fbo)
 549     {
 550         /* This codepath should only be hit with the COPY swapeffect. Otherwise a backbuffer-
 551          * window size mismatch is impossible(fullscreen) and src and dst rectangles are
 552          * not allowed(they need the COPY swapeffect)
 553          *
 554          * The DISCARD swap effect is ok as well since any backbuffer content is allowed after
 555          * the swap. */
 556         if (swapchain->desc.swap_effect == WINED3D_SWAP_EFFECT_FLIP)
 557             FIXME("Render-to-fbo with WINED3D_SWAP_EFFECT_FLIP\n");
 558
 559         swapchain_blit(swapchain, context, &src_rect, &dst_rect);
 560     }
 561
 562     if (swapchain->num_contexts > 1)
 563         gl_info->gl_ops.gl.p_glFinish();
 564     SwapBuffers(context->hdc); /* TODO: cycle through the swapchain buffers */
 565
 566     TRACE("SwapBuffers called, Starting new frame\n");
 567     /* FPS support */
 568     if (TRACE_ON(fps))
 569     {
 570         DWORD time = GetTickCount();
 571         ++swapchain->frames;
 572
 573         /* every 1.5 seconds */
 574         if (time - swapchain->prev_time > 1500)
 575         {
 576             TRACE_(fps)("%p @ approx %.2ffps\n",
 577                     swapchain, 1000.0 * swapchain->frames / (time - swapchain->prev_time));
 578             swapchain->prev_time = time;
 579             swapchain->frames = 0;
 580         }
 581     }
 582
 583     /* This is disabled, but the code left in for debug purposes.
 584      *
 585      * Since we're allowed to modify the new back buffer on a D3DSWAPEFFECT_DISCARD flip,
 586      * we can clear it with some ugly color to make bad drawing visible and ease debugging.
 587      * The Debug runtime does the same on Windows. However, a few games do not redraw the
 588      * screen properly, like Max Payne 2, which leaves a few pixels undefined.
 589      *
 590      * Tests show that the content of the back buffer after a discard flip is indeed not
 591      * reliable, so no game can depend on the exact content. However, it resembles the
 592      * old contents in some way, for example by showing fragments at other locations. In
 593      * general, the color theme is still intact. So Max payne, which draws rather dark scenes
 594      * gets a dark background image. If we clear it with a bright ugly color, the game's
 595      * bug shows up much more than it does on Windows, and the players see single pixels
 596      * with wrong colors.
 597      * (The Max Payne bug has been confirmed on Windows with the debug runtime) */
 598     if (FALSE && swapchain->desc.swap_effect == WINED3D_SWAP_EFFECT_DISCARD)
 599     {
 600         static const struct wined3d_color cyan = {0.0f, 1.0f, 1.0f, 1.0f};
 601
 602         TRACE("Clearing the color buffer with cyan color\n");
 603
 604         wined3d_device_clear(swapchain->device, 0, NULL,
 605                 WINED3DCLEAR_TARGET, &cyan, 1.0f, 0);
 606     }
 607
 608     if (!swapchain->render_to_fbo && ((swapchain->front_buffer->flags & SFLAG_INSYSMEM)
 609             || (back_buffer->flags & SFLAG_INSYSMEM)))
 610     {
 611         /* Both memory copies of the surfaces are ok, flip them around too instead of dirtifying
 612          * Doesn't work with render_to_fbo because we're not flipping
 613          */
 614         struct wined3d_surface *front = swapchain->front_buffer;
 615
 616         if (front->resource.size == back_buffer->resource.size)
 617         {
 618             DWORD fbflags;
 619             flip_surface(front, back_buffer);
 620
 621             /* Tell the front buffer surface that is has been modified. However,
 622              * the other locations were preserved during that, so keep the flags.
 623              * This serves to update the emulated overlay, if any. */
 624             fbflags = front->flags;
 625             surface_modify_location(front, SFLAG_INDRAWABLE, TRUE);
 626             front->flags = fbflags;
 627         }
 628         else
 629         {
 630             surface_modify_location(front, SFLAG_INDRAWABLE, TRUE);
 631             surface_modify_location(back_buffer, SFLAG_INDRAWABLE, TRUE);
 632         }
 633     }
 634     else
 635     {
 636         surface_modify_location(swapchain->front_buffer, SFLAG_INDRAWABLE, TRUE);
 637         /* If the swapeffect is DISCARD, the back buffer is undefined. That means the SYSMEM
 638          * and INTEXTURE copies can keep their old content if they have any defined content.
 639          * If the swapeffect is COPY, the content remains the same. If it is FLIP however,
 640          * the texture / sysmem copy needs to be reloaded from the drawable
 641          */
 642         if (swapchain->desc.swap_effect == WINED3D_SWAP_EFFECT_FLIP)
 643             surface_modify_location(back_buffer, back_buffer->draw_binding, TRUE);
 644     }
 645
 646     if (fb->depth_stencil)
 647     {
 648         if (swapchain->desc.flags & WINED3DPRESENTFLAG_DISCARD_DEPTHSTENCIL
 649                 || fb->depth_stencil->flags & SFLAG_DISCARD)
 650         {
 651             surface_modify_ds_location(fb->depth_stencil, SFLAG_DISCARDED,
 652                     fb->depth_stencil->resource.width,
 653                     fb->depth_stencil->resource.height);
 654             if (fb->depth_stencil == swapchain->device->onscreen_depth_stencil)
 655             {
 656                 wined3d_surface_decref(swapchain->device->onscreen_depth_stencil);
 657                 swapchain->device->onscreen_depth_stencil = NULL;
 658             }
 659         }
 660     }
 661
 662     context_release(context);
 663 }
 664
 665 static const struct wined3d_swapchain_ops swapchain_gl_ops =
 666 {
 667     swapchain_gl_present,
 668 };
 669
 670 /* Helper function that blits the front buffer contents to the target window. */
 671 void x11_copy_to_screen(const struct wined3d_swapchain *swapchain, const RECT *rect)
 672 {
 673     const struct wined3d_surface *front;
 674     POINT offset = {0, 0};
 675     HDC src_dc, dst_dc;
 676     RECT draw_rect;
 677     HWND window;
 678
 679     TRACE("swapchain %p, rect %s.\n", swapchain, wine_dbgstr_rect(rect));
 680
 681     front = swapchain->front_buffer;
 682     if (!(front->resource.usage & WINED3DUSAGE_RENDERTARGET))
 683         return;
 684
 685     if (front->resource.map_count)
 686         ERR("Trying to blit a mapped surface.\n");
 687
 688     TRACE("Copying surface %p to screen.\n", front);
 689
 690     src_dc = front->hDC;
 691     window = swapchain->win_handle;
 692     dst_dc = GetDCEx(window, 0, DCX_CLIPSIBLINGS | DCX_CACHE);
 693
 694     /* Front buffer coordinates are screen coordinates. Map them to the
 695      * destination window if not fullscreened. */
 696     if (swapchain->desc.windowed)
 697         ClientToScreen(window, &offset);
 698
 699     TRACE("offset %s.\n", wine_dbgstr_point(&offset));
 700
 701     draw_rect.left = 0;
 702     draw_rect.right = front->resource.width;
 703     draw_rect.top = 0;
 704     draw_rect.bottom = front->resource.height;
 705
 706     if (rect)
 707         IntersectRect(&draw_rect, &draw_rect, rect);
 708
 709     BitBlt(dst_dc, draw_rect.left - offset.x, draw_rect.top - offset.y,
 710             draw_rect.right - draw_rect.left, draw_rect.bottom - draw_rect.top,
 711             src_dc, draw_rect.left, draw_rect.top, SRCCOPY);
 712     ReleaseDC(window, dst_dc);
 713 }
 714
 715 static void swapchain_gdi_present(struct wined3d_swapchain *swapchain, const RECT *src_rect_in,
 716         const RECT *dst_rect_in, const RGNDATA *dirty_region, DWORD flags)
 717 {
 718     struct wined3d_surface *front, *back;
 719
 720     front = swapchain->front_buffer;
 721     back = swapchain->back_buffers[0];
 722
 723     /* Flip the DC. */
 724     {
 725         HDC tmp;
 726         tmp = front->hDC;
 727         front->hDC = back->hDC;
 728         back->hDC = tmp;
 729     }
 730
 731     /* Flip the DIBsection. */
 732     {
 733         HBITMAP tmp;
 734         tmp = front->dib.DIBsection;
 735         front->dib.DIBsection = back->dib.DIBsection;
 736         back->dib.DIBsection = tmp;
 737     }
 738
 739     /* Flip the surface data. */
 740     {
 741         void *tmp;
 742
 743         tmp = front->dib.bitmap_data;
 744         front->dib.bitmap_data = back->dib.bitmap_data;
 745         back->dib.bitmap_data = tmp;
 746
 747         tmp = front->resource.allocatedMemory;
 748         front->resource.allocatedMemory = back->resource.allocatedMemory;
 749         back->resource.allocatedMemory = tmp;
 750
 751         if (front->resource.heapMemory)
 752             ERR("GDI Surface %p has heap memory allocated.\n", front);
 753
 754         if (back->resource.heapMemory)
 755             ERR("GDI Surface %p has heap memory allocated.\n", back);
 756     }
 757
 758     /* FPS support */
 759     if (TRACE_ON(fps))
 760     {
 761         static LONG prev_time, frames;
 762         DWORD time = GetTickCount();
 763
 764         ++frames;
 765
 766         /* every 1.5 seconds */
 767         if (time - prev_time > 1500)
 768         {
 769             TRACE_(fps)("@ approx %.2ffps\n", 1000.0 * frames / (time - prev_time));
 770             prev_time = time;
 771             frames = 0;
 772         }
 773     }
 774
 775     x11_copy_to_screen(swapchain, NULL);
 776 }
 777
 778 static const struct wined3d_swapchain_ops swapchain_gdi_ops =
 779 {
 780     swapchain_gdi_present,
 781 };
 782
 783 void swapchain_update_render_to_fbo(struct wined3d_swapchain *swapchain)
 784 {
 785     RECT client_rect;
 786
 787     if (wined3d_settings.offscreen_rendering_mode != ORM_FBO)
 788         return;
 789
 790     if (!swapchain->desc.backbuffer_count)
 791     {
 792         TRACE("Single buffered rendering.\n");
 793         swapchain->render_to_fbo = FALSE;
 794         return;
 795     }
 796
 797     GetClientRect(swapchain->win_handle, &client_rect);
 798
 799     TRACE("Backbuffer %ux%u, window %ux%u.\n",
 800             swapchain->desc.backbuffer_width,
 801             swapchain->desc.backbuffer_height,
 802             client_rect.right, client_rect.bottom);
 803     TRACE("Multisample type %#x, quality %#x.\n",
 804             swapchain->desc.multisample_type,
 805             swapchain->desc.multisample_quality);
 806
 807     if (!wined3d_settings.always_offscreen && !swapchain->desc.multisample_type
 808             && swapchain->desc.backbuffer_width == client_rect.right
 809             && swapchain->desc.backbuffer_height == client_rect.bottom)
 810     {
 811         TRACE("Backbuffer dimensions match window dimensions, rendering onscreen.\n");
 812         swapchain->render_to_fbo = FALSE;
 813         return;
 814     }
 815
 816     TRACE("Rendering to FBO.\n");
 817     swapchain->render_to_fbo = TRUE;
 818 }
 819
 820 /* Do not call while under the GL lock. */
 821 static HRESULT swapchain_init(struct wined3d_swapchain *swapchain, enum wined3d_surface_type surface_type,
 822         struct wined3d_device *device, struct wined3d_swapchain_desc *desc,
 823         void *parent, const struct wined3d_parent_ops *parent_ops)
 824 {
 825     const struct wined3d_adapter *adapter = device->adapter;
 826     const struct wined3d_format *format;
 827     struct wined3d_display_mode mode;
 828     BOOL displaymode_set = FALSE;
 829     RECT client_rect;
 830     HWND window;
 831     HRESULT hr;
 832     UINT i;
 833
 834     if (desc->backbuffer_count > WINED3DPRESENT_BACK_BUFFER_MAX)
 835     {
 836         FIXME("The application requested %u back buffers, this is not supported.\n",
 837                 desc->backbuffer_count);
 838         return WINED3DERR_INVALIDCALL;
 839     }
 840
 841     if (desc->backbuffer_count > 1)
 842     {
 843         FIXME("The application requested more than one back buffer, this is not properly supported.\n"
 844                 "Please configure the application to use double buffering (1 back buffer) if possible.\n");
 845     }
 846
 847     switch (surface_type)
 848     {
 849         case WINED3D_SURFACE_TYPE_GDI:
 850             swapchain->swapchain_ops = &swapchain_gdi_ops;
 851             break;
 852
 853         case WINED3D_SURFACE_TYPE_OPENGL:
 854             swapchain->swapchain_ops = &swapchain_gl_ops;
 855             break;
 856
 857         default:
 858             ERR("Invalid surface type %#x.\n", surface_type);
 859             return WINED3DERR_INVALIDCALL;
 860     }
 861
 862     window = desc->device_window ? desc->device_window : device->create_parms.focus_window;
 863
 864     swapchain->device = device;
 865     swapchain->parent = parent;
 866     swapchain->parent_ops = parent_ops;
 867     swapchain->ref = 1;
 868     swapchain->win_handle = window;
 869     swapchain->device_window = window;
 870
 871     wined3d_get_adapter_display_mode(device->wined3d, adapter->ordinal, &mode, NULL);
 872     swapchain->orig_width = mode.width;
 873     swapchain->orig_height = mode.height;
 874     swapchain->orig_fmt = mode.format_id;
 875     format = wined3d_get_format(&adapter->gl_info, mode.format_id);
 876
 877     GetClientRect(window, &client_rect);
 878     if (desc->windowed
 879             && (!desc->backbuffer_width || !desc->backbuffer_height
 880             || desc->backbuffer_format == WINED3DFMT_UNKNOWN))
 881     {
 882
 883         if (!desc->backbuffer_width)
 884         {
 885             desc->backbuffer_width = client_rect.right;
 886             TRACE("Updating width to %u.\n", desc->backbuffer_width);
 887         }
 888
 889         if (!desc->backbuffer_height)
 890         {
 891             desc->backbuffer_height = client_rect.bottom;
 892             TRACE("Updating height to %u.\n", desc->backbuffer_height);
 893         }
 894
 895         if (desc->backbuffer_format == WINED3DFMT_UNKNOWN)
 896         {
 897             desc->backbuffer_format = swapchain->orig_fmt;
 898             TRACE("Updating format to %s.\n", debug_d3dformat(swapchain->orig_fmt));
 899         }
 900     }
 901     swapchain->desc = *desc;
 902     swapchain_update_render_to_fbo(swapchain);
 903
 904     TRACE("Creating front buffer.\n");
 905     if (FAILED(hr = device->device_parent->ops->create_swapchain_surface(device->device_parent, parent,
 906             swapchain->desc.backbuffer_width, swapchain->desc.backbuffer_height,
 907             swapchain->desc.backbuffer_format, WINED3DUSAGE_RENDERTARGET,
 908             swapchain->desc.multisample_type, swapchain->desc.multisample_quality,
 909             &swapchain->front_buffer)))
 910     {
 911         WARN("Failed to create front buffer, hr %#x.\n", hr);
 912         goto err;
 913     }
 914
 915     if (swapchain->front_buffer->container.type == WINED3D_CONTAINER_NONE)
 916         surface_set_container(swapchain->front_buffer, WINED3D_CONTAINER_SWAPCHAIN, swapchain);
 917     if (surface_type == WINED3D_SURFACE_TYPE_OPENGL)
 918         surface_modify_location(swapchain->front_buffer, SFLAG_INDRAWABLE, TRUE);
 919
 920     /* MSDN says we're only allowed a single fullscreen swapchain per device,
 921      * so we should really check to see if there is a fullscreen swapchain
 922      * already. Does a single head count as full screen? */
 923
 924     if (!desc->windowed)
 925     {
 926         struct wined3d_display_mode mode;
 927
 928         /* Change the display settings */
 929         mode.width = desc->backbuffer_width;
 930         mode.height = desc->backbuffer_height;
 931         mode.format_id = desc->backbuffer_format;
 932         mode.refresh_rate = desc->refresh_rate;
 933         mode.scanline_ordering = WINED3D_SCANLINE_ORDERING_UNKNOWN;
 934
 935         if (FAILED(hr = wined3d_set_adapter_display_mode(device->wined3d, device->adapter->ordinal, &mode)))
 936         {
 937             WARN("Failed to set display mode, hr %#x.\n", hr);
 938             goto err;
 939         }
 940         displaymode_set = TRUE;
 941     }
 942
 943     if (surface_type == WINED3D_SURFACE_TYPE_OPENGL)
 944     {
 945         static const enum wined3d_format_id formats[] =
 946         {
 947             WINED3DFMT_D24_UNORM_S8_UINT,
 948             WINED3DFMT_D32_UNORM,
 949             WINED3DFMT_R24_UNORM_X8_TYPELESS,
 950             WINED3DFMT_D16_UNORM,
 951             WINED3DFMT_S1_UINT_D15_UNORM
 952         };
 953
 954         const struct wined3d_gl_info *gl_info = &device->adapter->gl_info;
 955
 956         swapchain->context = HeapAlloc(GetProcessHeap(), 0, sizeof(*swapchain->context));
 957         if (!swapchain->context)
 958         {
 959             ERR("Failed to create the context array.\n");
 960             hr = E_OUTOFMEMORY;
 961             goto err;
 962         }
 963         swapchain->num_contexts = 1;
 964
 965         /* In WGL both color, depth and stencil are features of a pixel format. In case of D3D they are separate.
 966          * You are able to add a depth + stencil surface at a later stage when you need it.
 967          * In order to support this properly in WineD3D we need the ability to recreate the opengl context and
 968          * drawable when this is required. This is very tricky as we need to reapply ALL opengl states for the new
 969          * context, need torecreate shaders, textures and other resources.
 970          *
 971          * The context manager already takes care of the state problem and for the other tasks code from Reset
 972          * can be used. These changes are way to risky during the 1.0 code freeze which is taking place right now.
 973          * Likely a lot of other new bugs will be exposed. For that reason request a depth stencil surface all the
 974          * time. It can cause a slight performance hit but fixes a lot of regressions. A fixme reminds of that this
 975          * issue needs to be fixed. */
 976         for (i = 0; i < (sizeof(formats) / sizeof(*formats)); i++)
 977         {
 978             swapchain->ds_format = wined3d_get_format(gl_info, formats[i]);
 979             swapchain->context[0] = context_create(swapchain, swapchain->front_buffer, swapchain->ds_format);
 980             if (swapchain->context[0]) break;
 981             TRACE("Depth stencil format %s is not supported, trying next format\n",
 982                   debug_d3dformat(formats[i]));
 983         }
 984
 985         if (!swapchain->context[0])
 986         {
 987             WARN("Failed to create context.\n");
 988             hr = WINED3DERR_NOTAVAILABLE;
 989             goto err;
 990         }
 991
 992         if (wined3d_settings.offscreen_rendering_mode != ORM_FBO
 993                 && (!desc->enable_auto_depth_stencil
 994                 || swapchain->desc.auto_depth_stencil_format != swapchain->ds_format->id))
 995         {
 996             FIXME("Add OpenGL context recreation support to context_validate_onscreen_formats\n");
 997         }
 998         context_release(swapchain->context[0]);
 999     }
1000
1001     if (swapchain->desc.backbuffer_count > 0)
1002     {
1003         swapchain->back_buffers = HeapAlloc(GetProcessHeap(), 0,
1004                 sizeof(*swapchain->back_buffers) * swapchain->desc.backbuffer_count);
1005         if (!swapchain->back_buffers)
1006         {
1007             ERR("Failed to allocate backbuffer array memory.\n");
1008             hr = E_OUTOFMEMORY;
1009             goto err;
1010         }
1011
1012         for (i = 0; i < swapchain->desc.backbuffer_count; ++i)
1013         {
1014             TRACE("Creating back buffer %u.\n", i);
1015             if (FAILED(hr = device->device_parent->ops->create_swapchain_surface(device->device_parent, parent,
1016                     swapchain->desc.backbuffer_width, swapchain->desc.backbuffer_height,
1017                     swapchain->desc.backbuffer_format, WINED3DUSAGE_RENDERTARGET,
1018                     swapchain->desc.multisample_type, swapchain->desc.multisample_quality,
1019                     &swapchain->back_buffers[i])))
1020             {
1021                 WARN("Failed to create back buffer %u, hr %#x.\n", i, hr);
1022                 goto err;
1023             }
1024             if (swapchain->back_buffers[i]->container.type == WINED3D_CONTAINER_NONE)
1025                 surface_set_container(swapchain->back_buffers[i], WINED3D_CONTAINER_SWAPCHAIN, swapchain);
1026         }
1027     }
1028
1029     /* Swapchains share the depth/stencil buffer, so only create a single depthstencil surface. */
1030     if (desc->enable_auto_depth_stencil && surface_type == WINED3D_SURFACE_TYPE_OPENGL)
1031     {
1032         TRACE("Creating depth/stencil buffer.\n");
1033         if (!device->auto_depth_stencil)
1034         {
1035             if (FAILED(hr = device->device_parent->ops->create_swapchain_surface(device->device_parent,
1036                     device->device_parent, swapchain->desc.backbuffer_width, swapchain->desc.backbuffer_height,
1037                     swapchain->desc.auto_depth_stencil_format, WINED3DUSAGE_DEPTHSTENCIL,
1038                     swapchain->desc.multisample_type, swapchain->desc.multisample_quality,
1039                     &device->auto_depth_stencil)))
1040             {
1041                 WARN("Failed to create the auto depth stencil, hr %#x.\n", hr);
1042                 goto err;
1043             }
1044
1045             surface_set_container(device->auto_depth_stencil, WINED3D_CONTAINER_NONE, NULL);
1046         }
1047     }
1048
1049     wined3d_swapchain_get_gamma_ramp(swapchain, &swapchain->orig_gamma);
1050
1051     return WINED3D_OK;
1052
1053 err:
1054     if (displaymode_set)
1055     {
1056         DEVMODEW devmode;
1057
1058         ClipCursor(NULL);
1059
1060         /* Change the display settings */
1061         memset(&devmode, 0, sizeof(devmode));
1062         devmode.dmSize = sizeof(devmode);
1063         devmode.dmFields = DM_BITSPERPEL | DM_PELSWIDTH | DM_PELSHEIGHT;
1064         devmode.dmBitsPerPel = format->byte_count * CHAR_BIT;
1065         devmode.dmPelsWidth = swapchain->orig_width;
1066         devmode.dmPelsHeight = swapchain->orig_height;
1067         ChangeDisplaySettingsExW(adapter->DeviceName, &devmode, NULL, CDS_FULLSCREEN, NULL);
1068     }
1069
1070     if (swapchain->back_buffers)
1071     {
1072         for (i = 0; i < swapchain->desc.backbuffer_count; ++i)
1073         {
1074             if (swapchain->back_buffers[i])
1075             {
1076                 surface_set_container(swapchain->back_buffers[i], WINED3D_CONTAINER_NONE, NULL);
1077                 wined3d_surface_decref(swapchain->back_buffers[i]);
1078             }
1079         }
1080         HeapFree(GetProcessHeap(), 0, swapchain->back_buffers);
1081     }
1082
1083     if (swapchain->context)
1084     {
1085         if (swapchain->context[0])
1086         {
1087             context_release(swapchain->context[0]);
1088             context_destroy(device, swapchain->context[0]);
1089             swapchain->num_contexts = 0;
1090         }
1091         HeapFree(GetProcessHeap(), 0, swapchain->context);
1092     }
1093
1094     if (swapchain->front_buffer)
1095     {
1096         surface_set_container(swapchain->front_buffer, WINED3D_CONTAINER_NONE, NULL);
1097         wined3d_surface_decref(swapchain->front_buffer);
1098     }
1099
1100     return hr;
1101 }
1102
1103 /* Do not call while under the GL lock. */
1104 HRESULT CDECL wined3d_swapchain_create(struct wined3d_device *device,
1105         struct wined3d_swapchain_desc *desc, enum wined3d_surface_type surface_type,
1106         void *parent, const struct wined3d_parent_ops *parent_ops,
1107         struct wined3d_swapchain **swapchain)
1108 {
1109     struct wined3d_swapchain *object;
1110     HRESULT hr;
1111
1112     TRACE("device %p, desc %p, swapchain %p, parent %p, surface_type %#x.\n",
1113             device, desc, swapchain, parent, surface_type);
1114
1115     object = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*object));
1116     if (!object)
1117     {
1118         ERR("Failed to allocate swapchain memory.\n");
1119         return E_OUTOFMEMORY;
1120     }
1121
1122     hr = swapchain_init(object, surface_type, device, desc, parent, parent_ops);
1123     if (FAILED(hr))
1124     {
1125         WARN("Failed to initialize swapchain, hr %#x.\n", hr);
1126         HeapFree(GetProcessHeap(), 0, object);
1127         return hr;
1128     }
1129
1130     TRACE("Created swapchain %p.\n", object);
1131     *swapchain = object;
1132
1133     return WINED3D_OK;
1134 }
1135
1136 /* Do not call while under the GL lock. */
1137 static struct wined3d_context *swapchain_create_context(struct wined3d_swapchain *swapchain)
1138 {
1139     struct wined3d_context **newArray;
1140     struct wined3d_context *ctx;
1141
1142     TRACE("Creating a new context for swapchain %p, thread %u.\n", swapchain, GetCurrentThreadId());
1143
1144     if (!(ctx = context_create(swapchain, swapchain->front_buffer, swapchain->ds_format)))
1145     {
1146         ERR("Failed to create a new context for the swapchain\n");
1147         return NULL;
1148     }
1149     context_release(ctx);
1150
1151     newArray = HeapAlloc(GetProcessHeap(), 0, sizeof(*newArray) * (swapchain->num_contexts + 1));
1152     if(!newArray) {
1153         ERR("Out of memory when trying to allocate a new context array\n");
1154         context_destroy(swapchain->device, ctx);
1155         return NULL;
1156     }
1157     memcpy(newArray, swapchain->context, sizeof(*newArray) * swapchain->num_contexts);
1158     HeapFree(GetProcessHeap(), 0, swapchain->context);
1159     newArray[swapchain->num_contexts] = ctx;
1160     swapchain->context = newArray;
1161     swapchain->num_contexts++;
1162
1163     TRACE("Returning context %p\n", ctx);
1164     return ctx;
1165 }
1166
1167 void swapchain_destroy_contexts(struct wined3d_swapchain *swapchain)
1168 {
1169     unsigned int i;
1170
1171     for (i = 0; i < swapchain->num_contexts; ++i)
1172     {
1173         context_destroy(swapchain->device, swapchain->context[i]);
1174     }
1175     swapchain->num_contexts = 0;
1176 }
1177
1178 struct wined3d_context *swapchain_get_context(struct wined3d_swapchain *swapchain)
1179 {
1180     DWORD tid = GetCurrentThreadId();
1181     unsigned int i;
1182
1183     for (i = 0; i < swapchain->num_contexts; ++i)
1184     {
1185         if (swapchain->context[i]->tid == tid)
1186             return swapchain->context[i];
1187     }
1188
1189     /* Create a new context for the thread */
1190     return swapchain_create_context(swapchain);
1191 }
1192
1193 void get_drawable_size_swapchain(const struct wined3d_context *context, UINT *width, UINT *height)
1194 {
1195     /* The drawable size of an onscreen drawable is the surface size.
1196      * (Actually: The window size, but the surface is created in window size) */
1197     *width = context->current_rt->resource.width;
1198     *height = context->current_rt->resource.height;
1199 }
1200
1201 HDC swapchain_get_backup_dc(struct wined3d_swapchain *swapchain)
1202 {
1203     if (!swapchain->backup_dc)
1204     {
1205         TRACE("Creating the backup window for swapchain %p.\n", swapchain);
1206
1207         if (!(swapchain->backup_wnd = CreateWindowA(WINED3D_OPENGL_WINDOW_CLASS_NAME, "WineD3D fake window",
1208                 WS_OVERLAPPEDWINDOW, 10, 10, 10, 10, NULL, NULL, NULL, NULL)))
1209         {
1210             ERR("Failed to create a window.\n");
1211             return NULL;
1212         }
1213
1214         if (!(swapchain->backup_dc = GetDC(swapchain->backup_wnd)))
1215         {
1216             ERR("Failed to get a DC.\n");
1217             DestroyWindow(swapchain->backup_wnd);
1218             swapchain->backup_wnd = NULL;
1219             return NULL;
1220         }
1221     }
1222
1223     return swapchain->backup_dc;
1224 }
1225
1226 void swapchain_update_draw_bindings(struct wined3d_swapchain *swapchain)
1227 {
1228     UINT i;
1229
1230     surface_update_draw_binding(swapchain->front_buffer);
1231
1232     for (i = 0; i < swapchain->desc.backbuffer_count; ++i)
1233     {
1234         surface_update_draw_binding(swapchain->back_buffers[i]);
1235     }
1236 }