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         surface_set_container(swapchain->front_buffer, WINED3D_CONTAINER_NONE, NULL);
  46         if (wined3d_surface_decref(swapchain->front_buffer))
  47             WARN("Something's still holding the front buffer (%p).\n", swapchain->front_buffer);
  48         swapchain->front_buffer = NULL;
  49     }
  50
  51     if (swapchain->back_buffers)
  52     {
  53         i = swapchain->desc.backbuffer_count;
  54
  55         while (i--)
  56         {
  57             surface_set_container(swapchain->back_buffers[i], WINED3D_CONTAINER_NONE, NULL);
  58             if (wined3d_surface_decref(swapchain->back_buffers[i]))
  59                 WARN("Something's still holding back buffer %u (%p).\n", i, swapchain->back_buffers[i]);
  60         }
  61         HeapFree(GetProcessHeap(), 0, swapchain->back_buffers);
  62         swapchain->back_buffers = NULL;
  63     }
  64
  65     for (i = 0; i < swapchain->num_contexts; ++i)
  66     {
  67         context_destroy(swapchain->device, swapchain->context[i]);
  68     }
  69     HeapFree(GetProcessHeap(), 0, swapchain->context);
  70
  71     /* Restore the screen resolution if we rendered in fullscreen.
  72      * This will restore the screen resolution to what it was before creating
  73      * the swapchain. In case of d3d8 and d3d9 this will be the original
  74      * desktop resolution. In case of d3d7 this will be a NOP because ddraw
  75      * sets the resolution before starting up Direct3D, thus orig_width and
  76      * orig_height will be equal to the modes in the presentation params. */
  77     if (!swapchain->desc.windowed && swapchain->desc.auto_restore_display_mode)
  78     {
  79         mode.width = swapchain->orig_width;
  80         mode.height = swapchain->orig_height;
  81         mode.refresh_rate = 0;
  82         mode.format_id = swapchain->orig_fmt;
  83         mode.scanline_ordering = WINED3D_SCANLINE_ORDERING_UNKNOWN;
  84         if (FAILED(hr = wined3d_set_adapter_display_mode(swapchain->device->wined3d,
  85                 swapchain->device->adapter->ordinal, &mode)))
  86             ERR("Failed to restore display mode, hr %#x.\n", hr);
  87     }
  88
  89     if (swapchain->backup_dc)
  90     {
  91         TRACE("Destroying backup wined3d window %p, dc %p.\n", swapchain->backup_wnd, swapchain->backup_dc);
  92
  93         ReleaseDC(swapchain->backup_wnd, swapchain->backup_dc);
  94         DestroyWindow(swapchain->backup_wnd);
  95     }
  96 }
  97
  98 ULONG CDECL wined3d_swapchain_incref(struct wined3d_swapchain *swapchain)
  99 {
 100     ULONG refcount = InterlockedIncrement(&swapchain->ref);
 101
 102     TRACE("%p increasing refcount to %u.\n", swapchain, refcount);
 103
 104     return refcount;
 105 }
 106
 107 /* Do not call while under the GL lock. */
 108 ULONG CDECL wined3d_swapchain_decref(struct wined3d_swapchain *swapchain)
 109 {
 110     ULONG refcount = InterlockedDecrement(&swapchain->ref);
 111
 112     TRACE("%p decreasing refcount to %u.\n", swapchain, refcount);
 113
 114     if (!refcount)
 115     {
 116         swapchain_cleanup(swapchain);
 117         swapchain->parent_ops->wined3d_object_destroyed(swapchain->parent);
 118         HeapFree(GetProcessHeap(), 0, swapchain);
 119     }
 120
 121     return refcount;
 122 }
 123
 124 void * CDECL wined3d_swapchain_get_parent(const struct wined3d_swapchain *swapchain)
 125 {
 126     TRACE("swapchain %p.\n", swapchain);
 127
 128     return swapchain->parent;
 129 }
 130
 131 HRESULT CDECL wined3d_swapchain_set_window(struct wined3d_swapchain *swapchain, HWND window)
 132 {
 133     if (!window)
 134         window = swapchain->device_window;
 135     if (window == swapchain->win_handle)
 136         return WINED3D_OK;
 137
 138     TRACE("Setting swapchain %p window from %p to %p.\n",
 139             swapchain, swapchain->win_handle, window);
 140     swapchain->win_handle = window;
 141
 142     return WINED3D_OK;
 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 HRESULT CDECL wined3d_swapchain_get_back_buffer(const struct wined3d_swapchain *swapchain,
 192         UINT back_buffer_idx, enum wined3d_backbuffer_type type, struct wined3d_surface **back_buffer)
 193 {
 194     TRACE("swapchain %p, back_buffer_idx %u, type %#x, back_buffer %p.\n",
 195             swapchain, back_buffer_idx, type, back_buffer);
 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         *back_buffer = NULL;
 208         return WINED3DERR_INVALIDCALL;
 209     }
 210
 211     *back_buffer = swapchain->back_buffers[back_buffer_idx];
 212     if (*back_buffer)
 213         wined3d_surface_incref(*back_buffer);
 214
 215     TRACE("Returning back buffer %p.\n", *back_buffer);
 216
 217     return WINED3D_OK;
 218 }
 219
 220 HRESULT CDECL wined3d_swapchain_get_raster_status(const struct wined3d_swapchain *swapchain,
 221         struct wined3d_raster_status *raster_status)
 222 {
 223     TRACE("swapchain %p, raster_status %p.\n", swapchain, raster_status);
 224
 225     return wined3d_get_adapter_raster_status(swapchain->device->wined3d,
 226             swapchain->device->adapter->ordinal, raster_status);
 227 }
 228
 229 HRESULT CDECL wined3d_swapchain_get_display_mode(const struct wined3d_swapchain *swapchain,
 230         struct wined3d_display_mode *mode, enum wined3d_display_rotation *rotation)
 231 {
 232     HRESULT hr;
 233
 234     TRACE("swapchain %p, mode %p, rotation %p.\n", swapchain, mode, rotation);
 235
 236     hr = wined3d_get_adapter_display_mode(swapchain->device->wined3d,
 237             swapchain->device->adapter->ordinal, mode, rotation);
 238
 239     TRACE("Returning w %u, h %u, refresh rate %u, format %s.\n",
 240             mode->width, mode->height, mode->refresh_rate, debug_d3dformat(mode->format_id));
 241
 242     return hr;
 243 }
 244
 245 struct wined3d_device * CDECL wined3d_swapchain_get_device(const struct wined3d_swapchain *swapchain)
 246 {
 247     TRACE("swapchain %p.\n", swapchain);
 248
 249     return swapchain->device;
 250 }
 251
 252 HRESULT CDECL wined3d_swapchain_get_desc(const struct wined3d_swapchain *swapchain,
 253         struct wined3d_swapchain_desc *desc)
 254 {
 255     TRACE("swapchain %p, desc %p.\n", swapchain, desc);
 256
 257     *desc = swapchain->desc;
 258
 259     return WINED3D_OK;
 260 }
 261
 262 HRESULT CDECL wined3d_swapchain_set_gamma_ramp(const struct wined3d_swapchain *swapchain,
 263         DWORD flags, const struct wined3d_gamma_ramp *ramp)
 264 {
 265     HDC dc;
 266
 267     TRACE("swapchain %p, flags %#x, ramp %p.\n", swapchain, flags, ramp);
 268
 269     if (flags)
 270         FIXME("Ignoring flags %#x.\n", flags);
 271
 272     dc = GetDC(swapchain->device_window);
 273     SetDeviceGammaRamp(dc, (void *)ramp);
 274     ReleaseDC(swapchain->device_window, dc);
 275
 276     return WINED3D_OK;
 277 }
 278
 279 HRESULT CDECL wined3d_swapchain_get_gamma_ramp(const struct wined3d_swapchain *swapchain,
 280         struct wined3d_gamma_ramp *ramp)
 281 {
 282     HDC dc;
 283
 284     TRACE("swapchain %p, ramp %p.\n", swapchain, ramp);
 285
 286     dc = GetDC(swapchain->device_window);
 287     GetDeviceGammaRamp(dc, ramp);
 288     ReleaseDC(swapchain->device_window, dc);
 289
 290     return WINED3D_OK;
 291 }
 292
 293 /* A GL context is provided by the caller */
 294 static void swapchain_blit(const struct wined3d_swapchain *swapchain,
 295         struct wined3d_context *context, const RECT *src_rect, const RECT *dst_rect)
 296 {
 297     struct wined3d_surface *backbuffer = swapchain->back_buffers[0];
 298     UINT src_w = src_rect->right - src_rect->left;
 299     UINT src_h = src_rect->bottom - src_rect->top;
 300     GLenum gl_filter;
 301     const struct wined3d_gl_info *gl_info = context->gl_info;
 302     RECT win_rect;
 303     UINT win_h;
 304
 305     TRACE("swapchain %p, context %p, src_rect %s, dst_rect %s.\n",
 306             swapchain, context, wine_dbgstr_rect(src_rect), wine_dbgstr_rect(dst_rect));
 307
 308     if (src_w == dst_rect->right - dst_rect->left && src_h == dst_rect->bottom - dst_rect->top)
 309         gl_filter = GL_NEAREST;
 310     else
 311         gl_filter = GL_LINEAR;
 312
 313     GetClientRect(swapchain->win_handle, &win_rect);
 314     win_h = win_rect.bottom - win_rect.top;
 315
 316     if (gl_info->fbo_ops.glBlitFramebuffer && is_identity_fixup(backbuffer->resource.format->color_fixup))
 317     {
 318         DWORD location = SFLAG_INTEXTURE;
 319
 320         if (backbuffer->resource.multisample_type)
 321         {
 322             location = SFLAG_INRB_RESOLVED;
 323             surface_load_location(backbuffer, location, NULL);
 324         }
 325
 326         ENTER_GL();
 327         context_apply_fbo_state_blit(context, GL_READ_FRAMEBUFFER, backbuffer, NULL, location);
 328         gl_info->gl_ops.gl.p_glReadBuffer(GL_COLOR_ATTACHMENT0);
 329         context_check_fbo_status(context, GL_READ_FRAMEBUFFER);
 330
 331         context_apply_fbo_state_blit(context, GL_DRAW_FRAMEBUFFER, swapchain->front_buffer, NULL, SFLAG_INDRAWABLE);
 332         context_set_draw_buffer(context, GL_BACK);
 333         context_invalidate_state(context, STATE_FRAMEBUFFER);
 334
 335         gl_info->gl_ops.gl.p_glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
 336         context_invalidate_state(context, STATE_RENDER(WINED3D_RS_COLORWRITEENABLE));
 337         context_invalidate_state(context, STATE_RENDER(WINED3D_RS_COLORWRITEENABLE1));
 338         context_invalidate_state(context, STATE_RENDER(WINED3D_RS_COLORWRITEENABLE2));
 339         context_invalidate_state(context, STATE_RENDER(WINED3D_RS_COLORWRITEENABLE3));
 340
 341         gl_info->gl_ops.gl.p_glDisable(GL_SCISSOR_TEST);
 342         context_invalidate_state(context, STATE_RENDER(WINED3D_RS_SCISSORTESTENABLE));
 343
 344         /* Note that the texture is upside down */
 345         gl_info->fbo_ops.glBlitFramebuffer(src_rect->left, src_rect->top, src_rect->right, src_rect->bottom,
 346                 dst_rect->left, win_h - dst_rect->top, dst_rect->right, win_h - dst_rect->bottom,
 347                 GL_COLOR_BUFFER_BIT, gl_filter);
 348         checkGLcall("Swapchain present blit(EXT_framebuffer_blit)\n");
 349         LEAVE_GL();
 350     }
 351     else
 352     {
 353         struct wined3d_device *device = swapchain->device;
 354         struct wined3d_context *context2;
 355         float tex_left = src_rect->left;
 356         float tex_top = src_rect->top;
 357         float tex_right = src_rect->right;
 358         float tex_bottom = src_rect->bottom;
 359
 360         context2 = context_acquire(device, swapchain->back_buffers[0]);
 361         context_apply_blit_state(context2, device);
 362
 363         if (backbuffer->flags & SFLAG_NORMCOORD)
 364         {
 365             tex_left /= src_w;
 366             tex_right /= src_w;
 367             tex_top /= src_h;
 368             tex_bottom /= src_h;
 369         }
 370
 371         if (is_complex_fixup(backbuffer->resource.format->color_fixup))
 372             gl_filter = GL_NEAREST;
 373
 374         ENTER_GL();
 375         context_apply_fbo_state_blit(context2, GL_FRAMEBUFFER, swapchain->front_buffer, NULL, SFLAG_INDRAWABLE);
 376
 377         /* Set up the texture. The surface is not in a wined3d_texture
 378          * container, so there are no D3D texture settings to dirtify. */
 379         device->blitter->set_shader(device->blit_priv, context2, backbuffer);
 380         gl_info->gl_ops.gl.p_glTexParameteri(backbuffer->texture_target, GL_TEXTURE_MIN_FILTER, gl_filter);
 381         gl_info->gl_ops.gl.p_glTexParameteri(backbuffer->texture_target, GL_TEXTURE_MAG_FILTER, gl_filter);
 382
 383         context_set_draw_buffer(context, GL_BACK);
 384
 385         /* Set the viewport to the destination rectandle, disable any projection
 386          * transformation set up by context_apply_blit_state(), and draw a
 387          * (-1,-1)-(1,1) quad.
 388          *
 389          * Back up viewport and matrix to avoid breaking last_was_blit
 390          *
 391          * Note that context_apply_blit_state() set up viewport and ortho to
 392          * match the surface size - we want the GL drawable(=window) size. */
 393         gl_info->gl_ops.gl.p_glPushAttrib(GL_VIEWPORT_BIT);
 394         gl_info->gl_ops.gl.p_glViewport(dst_rect->left, win_h - dst_rect->bottom,
 395                 dst_rect->right, win_h - dst_rect->top);
 396         gl_info->gl_ops.gl.p_glMatrixMode(GL_PROJECTION);
 397         gl_info->gl_ops.gl.p_glPushMatrix();
 398         gl_info->gl_ops.gl.p_glLoadIdentity();
 399
 400         gl_info->gl_ops.gl.p_glBegin(GL_QUADS);
 401             /* bottom left */
 402             gl_info->gl_ops.gl.p_glTexCoord2f(tex_left, tex_bottom);
 403             gl_info->gl_ops.gl.p_glVertex2i(-1, -1);
 404
 405             /* top left */
 406             gl_info->gl_ops.gl.p_glTexCoord2f(tex_left, tex_top);
 407             gl_info->gl_ops.gl.p_glVertex2i(-1, 1);
 408
 409             /* top right */
 410             gl_info->gl_ops.gl.p_glTexCoord2f(tex_right, tex_top);
 411             gl_info->gl_ops.gl.p_glVertex2i(1, 1);
 412
 413             /* bottom right */
 414             gl_info->gl_ops.gl.p_glTexCoord2f(tex_right, tex_bottom);
 415             gl_info->gl_ops.gl.p_glVertex2i(1, -1);
 416         gl_info->gl_ops.gl.p_glEnd();
 417
 418         gl_info->gl_ops.gl.p_glPopMatrix();
 419         gl_info->gl_ops.gl.p_glPopAttrib();
 420
 421         device->blitter->unset_shader(context->gl_info);
 422         checkGLcall("Swapchain present blit(manual)\n");
 423         LEAVE_GL();
 424
 425         context_release(context2);
 426     }
 427 }
 428
 429 static void swapchain_gl_present(struct wined3d_swapchain *swapchain, const RECT *src_rect_in,
 430         const RECT *dst_rect_in, const RGNDATA *dirty_region, DWORD flags)
 431 {
 432     struct wined3d_surface *back_buffer = swapchain->back_buffers[0];
 433     const struct wined3d_fb_state *fb = &swapchain->device->fb;
 434     const struct wined3d_gl_info *gl_info;
 435     struct wined3d_context *context;
 436     RECT src_rect, dst_rect;
 437     BOOL render_to_fbo;
 438
 439     context = context_acquire(swapchain->device, back_buffer);
 440     if (!context->valid)
 441     {
 442         context_release(context);
 443         WARN("Invalid context, skipping present.\n");
 444         return;
 445     }
 446
 447     gl_info = context->gl_info;
 448
 449     /* Render the cursor onto the back buffer, using our nifty directdraw blitting code :-) */
 450     if (swapchain->device->bCursorVisible &&
 451         swapchain->device->cursorTexture &&
 452         !swapchain->device->hardwareCursor)
 453     {
 454         struct wined3d_surface cursor;
 455         RECT destRect =
 456         {
 457             swapchain->device->xScreenSpace - swapchain->device->xHotSpot,
 458             swapchain->device->yScreenSpace - swapchain->device->yHotSpot,
 459             swapchain->device->xScreenSpace + swapchain->device->cursorWidth - swapchain->device->xHotSpot,
 460             swapchain->device->yScreenSpace + swapchain->device->cursorHeight - swapchain->device->yHotSpot,
 461         };
 462         TRACE("Rendering the cursor. Creating fake surface at %p\n", &cursor);
 463         /* Build a fake surface to call the Blitting code. It is not possible to use the interface passed by
 464          * the application because we are only supposed to copy the information out. Using a fake surface
 465          * allows us to use the Blitting engine and avoid copying the whole texture -> render target blitting code.
 466          */
 467         memset(&cursor, 0, sizeof(cursor));
 468         cursor.resource.ref = 1;
 469         cursor.resource.device = swapchain->device;
 470         cursor.resource.pool = WINED3D_POOL_SCRATCH;
 471         cursor.resource.format = wined3d_get_format(gl_info, WINED3DFMT_B8G8R8A8_UNORM);
 472         cursor.resource.type = WINED3D_RTYPE_SURFACE;
 473         cursor.texture_name = swapchain->device->cursorTexture;
 474         cursor.texture_target = GL_TEXTURE_2D;
 475         cursor.texture_level = 0;
 476         cursor.resource.width = swapchain->device->cursorWidth;
 477         cursor.resource.height = swapchain->device->cursorHeight;
 478         /* The cursor must have pow2 sizes */
 479         cursor.pow2Width = cursor.resource.width;
 480         cursor.pow2Height = cursor.resource.height;
 481         /* The surface is in the texture */
 482         cursor.flags |= SFLAG_INTEXTURE;
 483         /* DDBLT_KEYSRC will cause BltOverride to enable the alpha test with GL_NOTEQUAL, 0.0,
 484          * which is exactly what we want :-)
 485          */
 486         if (swapchain->desc.windowed)
 487             MapWindowPoints(NULL, swapchain->win_handle, (POINT *)&destRect, 2);
 488         wined3d_surface_blt(back_buffer, &destRect, &cursor, NULL, WINEDDBLT_KEYSRC,
 489                 NULL, WINED3D_TEXF_POINT);
 490     }
 491
 492     if (swapchain->device->logo_surface)
 493     {
 494         struct wined3d_surface *src_surface = swapchain->device->logo_surface;
 495         RECT rect = {0, 0, src_surface->resource.width, src_surface->resource.height};
 496
 497         /* Blit the logo into the upper left corner of the drawable. */
 498         wined3d_surface_blt(back_buffer, &rect, src_surface, &rect, WINEDDBLT_KEYSRC,
 499                 NULL, WINED3D_TEXF_POINT);
 500     }
 501
 502     TRACE("Presenting HDC %p.\n", context->hdc);
 503
 504     render_to_fbo = swapchain->render_to_fbo;
 505
 506     if (src_rect_in)
 507     {
 508         src_rect = *src_rect_in;
 509         if (!render_to_fbo && (src_rect.left || src_rect.top
 510                 || src_rect.right != swapchain->desc.backbuffer_width
 511                 || src_rect.bottom != swapchain->desc.backbuffer_height))
 512         {
 513             render_to_fbo = TRUE;
 514         }
 515     }
 516     else
 517     {
 518         src_rect.left = 0;
 519         src_rect.top = 0;
 520         src_rect.right = swapchain->desc.backbuffer_width;
 521         src_rect.bottom = swapchain->desc.backbuffer_height;
 522     }
 523
 524     if (dst_rect_in)
 525         dst_rect = *dst_rect_in;
 526     else
 527         GetClientRect(swapchain->win_handle, &dst_rect);
 528
 529     if (!render_to_fbo && (dst_rect.left || dst_rect.top
 530             || dst_rect.right != swapchain->desc.backbuffer_width
 531             || dst_rect.bottom != swapchain->desc.backbuffer_height))
 532         render_to_fbo = TRUE;
 533
 534     /* Rendering to a window of different size, presenting partial rectangles,
 535      * or rendering to a different window needs help from FBO_blit or a textured
 536      * draw. Render the swapchain to a FBO in the future.
 537      *
 538      * Note that FBO_blit from the backbuffer to the frontbuffer cannot solve
 539      * all these issues - this fails if the window is smaller than the backbuffer.
 540      */
 541     if (!swapchain->render_to_fbo && render_to_fbo && wined3d_settings.offscreen_rendering_mode == ORM_FBO)
 542     {
 543         surface_load_location(back_buffer, SFLAG_INTEXTURE, NULL);
 544         surface_modify_location(back_buffer, SFLAG_INDRAWABLE, FALSE);
 545         swapchain->render_to_fbo = TRUE;
 546         swapchain_update_draw_bindings(swapchain);
 547     }
 548     else
 549     {
 550         surface_load_location(back_buffer, back_buffer->draw_binding, NULL);
 551     }
 552
 553     if (swapchain->render_to_fbo)
 554     {
 555         /* This codepath should only be hit with the COPY swapeffect. Otherwise a backbuffer-
 556          * window size mismatch is impossible(fullscreen) and src and dst rectangles are
 557          * not allowed(they need the COPY swapeffect)
 558          *
 559          * The DISCARD swap effect is ok as well since any backbuffer content is allowed after
 560          * the swap. */
 561         if (swapchain->desc.swap_effect == WINED3D_SWAP_EFFECT_FLIP)
 562             FIXME("Render-to-fbo with WINED3D_SWAP_EFFECT_FLIP\n");
 563
 564         swapchain_blit(swapchain, context, &src_rect, &dst_rect);
 565     }
 566
 567     if (swapchain->num_contexts > 1)
 568         gl_info->gl_ops.gl.p_glFinish();
 569     SwapBuffers(context->hdc); /* TODO: cycle through the swapchain buffers */
 570
 571     TRACE("SwapBuffers called, Starting new frame\n");
 572     /* FPS support */
 573     if (TRACE_ON(fps))
 574     {
 575         DWORD time = GetTickCount();
 576         ++swapchain->frames;
 577
 578         /* every 1.5 seconds */
 579         if (time - swapchain->prev_time > 1500)
 580         {
 581             TRACE_(fps)("%p @ approx %.2ffps\n",
 582                     swapchain, 1000.0 * swapchain->frames / (time - swapchain->prev_time));
 583             swapchain->prev_time = time;
 584             swapchain->frames = 0;
 585         }
 586     }
 587
 588     /* This is disabled, but the code left in for debug purposes.
 589      *
 590      * Since we're allowed to modify the new back buffer on a D3DSWAPEFFECT_DISCARD flip,
 591      * we can clear it with some ugly color to make bad drawing visible and ease debugging.
 592      * The Debug runtime does the same on Windows. However, a few games do not redraw the
 593      * screen properly, like Max Payne 2, which leaves a few pixels undefined.
 594      *
 595      * Tests show that the content of the back buffer after a discard flip is indeed not
 596      * reliable, so no game can depend on the exact content. However, it resembles the
 597      * old contents in some way, for example by showing fragments at other locations. In
 598      * general, the color theme is still intact. So Max payne, which draws rather dark scenes
 599      * gets a dark background image. If we clear it with a bright ugly color, the game's
 600      * bug shows up much more than it does on Windows, and the players see single pixels
 601      * with wrong colors.
 602      * (The Max Payne bug has been confirmed on Windows with the debug runtime) */
 603     if (FALSE && swapchain->desc.swap_effect == WINED3D_SWAP_EFFECT_DISCARD)
 604     {
 605         static const struct wined3d_color cyan = {0.0f, 1.0f, 1.0f, 1.0f};
 606
 607         TRACE("Clearing the color buffer with cyan color\n");
 608
 609         wined3d_device_clear(swapchain->device, 0, NULL,
 610                 WINED3DCLEAR_TARGET, &cyan, 1.0f, 0);
 611     }
 612
 613     if (!swapchain->render_to_fbo && ((swapchain->front_buffer->flags & SFLAG_INSYSMEM)
 614             || (back_buffer->flags & SFLAG_INSYSMEM)))
 615     {
 616         /* Both memory copies of the surfaces are ok, flip them around too instead of dirtifying
 617          * Doesn't work with render_to_fbo because we're not flipping
 618          */
 619         struct wined3d_surface *front = swapchain->front_buffer;
 620
 621         if (front->resource.size == back_buffer->resource.size)
 622         {
 623             DWORD fbflags;
 624             flip_surface(front, back_buffer);
 625
 626             /* Tell the front buffer surface that is has been modified. However,
 627              * the other locations were preserved during that, so keep the flags.
 628              * This serves to update the emulated overlay, if any. */
 629             fbflags = front->flags;
 630             surface_modify_location(front, SFLAG_INDRAWABLE, TRUE);
 631             front->flags = fbflags;
 632         }
 633         else
 634         {
 635             surface_modify_location(front, SFLAG_INDRAWABLE, TRUE);
 636             surface_modify_location(back_buffer, SFLAG_INDRAWABLE, TRUE);
 637         }
 638     }
 639     else
 640     {
 641         surface_modify_location(swapchain->front_buffer, SFLAG_INDRAWABLE, TRUE);
 642         /* If the swapeffect is DISCARD, the back buffer is undefined. That means the SYSMEM
 643          * and INTEXTURE copies can keep their old content if they have any defined content.
 644          * If the swapeffect is COPY, the content remains the same. If it is FLIP however,
 645          * the texture / sysmem copy needs to be reloaded from the drawable
 646          */
 647         if (swapchain->desc.swap_effect == WINED3D_SWAP_EFFECT_FLIP)
 648             surface_modify_location(back_buffer, back_buffer->draw_binding, TRUE);
 649     }
 650
 651     if (fb->depth_stencil)
 652     {
 653         if (swapchain->desc.flags & WINED3DPRESENTFLAG_DISCARD_DEPTHSTENCIL
 654                 || fb->depth_stencil->flags & SFLAG_DISCARD)
 655         {
 656             surface_modify_ds_location(fb->depth_stencil, SFLAG_DISCARDED,
 657                     fb->depth_stencil->resource.width,
 658                     fb->depth_stencil->resource.height);
 659             if (fb->depth_stencil == swapchain->device->onscreen_depth_stencil)
 660             {
 661                 wined3d_surface_decref(swapchain->device->onscreen_depth_stencil);
 662                 swapchain->device->onscreen_depth_stencil = NULL;
 663             }
 664         }
 665     }
 666
 667     context_release(context);
 668 }
 669
 670 static const struct wined3d_swapchain_ops swapchain_gl_ops =
 671 {
 672     swapchain_gl_present,
 673 };
 674
 675 /* Helper function that blits the front buffer contents to the target window. */
 676 void x11_copy_to_screen(const struct wined3d_swapchain *swapchain, const RECT *rect)
 677 {
 678     const struct wined3d_surface *front;
 679     POINT offset = {0, 0};
 680     HDC src_dc, dst_dc;
 681     RECT draw_rect;
 682     HWND window;
 683
 684     TRACE("swapchain %p, rect %s.\n", swapchain, wine_dbgstr_rect(rect));
 685
 686     front = swapchain->front_buffer;
 687     if (!(front->resource.usage & WINED3DUSAGE_RENDERTARGET))
 688         return;
 689
 690     if (front->resource.map_count)
 691         ERR("Trying to blit a mapped surface.\n");
 692
 693     TRACE("Copying surface %p to screen.\n", front);
 694
 695     src_dc = front->hDC;
 696     window = swapchain->win_handle;
 697     dst_dc = GetDCEx(window, 0, DCX_CLIPSIBLINGS | DCX_CACHE);
 698
 699     /* Front buffer coordinates are screen coordinates. Map them to the
 700      * destination window if not fullscreened. */
 701     if (swapchain->desc.windowed)
 702         ClientToScreen(window, &offset);
 703
 704     TRACE("offset %s.\n", wine_dbgstr_point(&offset));
 705
 706     draw_rect.left = 0;
 707     draw_rect.right = front->resource.width;
 708     draw_rect.top = 0;
 709     draw_rect.bottom = front->resource.height;
 710
 711     if (rect)
 712         IntersectRect(&draw_rect, &draw_rect, rect);
 713
 714     BitBlt(dst_dc, draw_rect.left - offset.x, draw_rect.top - offset.y,
 715             draw_rect.right - draw_rect.left, draw_rect.bottom - draw_rect.top,
 716             src_dc, draw_rect.left, draw_rect.top, SRCCOPY);
 717     ReleaseDC(window, dst_dc);
 718 }
 719
 720 static void swapchain_gdi_present(struct wined3d_swapchain *swapchain, const RECT *src_rect_in,
 721         const RECT *dst_rect_in, const RGNDATA *dirty_region, DWORD flags)
 722 {
 723     struct wined3d_surface *front, *back;
 724
 725     front = swapchain->front_buffer;
 726     back = swapchain->back_buffers[0];
 727
 728     /* Flip the DC. */
 729     {
 730         HDC tmp;
 731         tmp = front->hDC;
 732         front->hDC = back->hDC;
 733         back->hDC = tmp;
 734     }
 735
 736     /* Flip the DIBsection. */
 737     {
 738         HBITMAP tmp;
 739         tmp = front->dib.DIBsection;
 740         front->dib.DIBsection = back->dib.DIBsection;
 741         back->dib.DIBsection = tmp;
 742     }
 743
 744     /* Flip the surface data. */
 745     {
 746         void *tmp;
 747
 748         tmp = front->dib.bitmap_data;
 749         front->dib.bitmap_data = back->dib.bitmap_data;
 750         back->dib.bitmap_data = tmp;
 751
 752         tmp = front->resource.allocatedMemory;
 753         front->resource.allocatedMemory = back->resource.allocatedMemory;
 754         back->resource.allocatedMemory = tmp;
 755
 756         if (front->resource.heapMemory)
 757             ERR("GDI Surface %p has heap memory allocated.\n", front);
 758
 759         if (back->resource.heapMemory)
 760             ERR("GDI Surface %p has heap memory allocated.\n", back);
 761     }
 762
 763     /* FPS support */
 764     if (TRACE_ON(fps))
 765     {
 766         static LONG prev_time, frames;
 767         DWORD time = GetTickCount();
 768
 769         ++frames;
 770
 771         /* every 1.5 seconds */
 772         if (time - prev_time > 1500)
 773         {
 774             TRACE_(fps)("@ approx %.2ffps\n", 1000.0 * frames / (time - prev_time));
 775             prev_time = time;
 776             frames = 0;
 777         }
 778     }
 779
 780     x11_copy_to_screen(swapchain, NULL);
 781 }
 782
 783 static const struct wined3d_swapchain_ops swapchain_gdi_ops =
 784 {
 785     swapchain_gdi_present,
 786 };
 787
 788 void swapchain_update_render_to_fbo(struct wined3d_swapchain *swapchain)
 789 {
 790     RECT client_rect;
 791
 792     if (wined3d_settings.offscreen_rendering_mode != ORM_FBO)
 793         return;
 794
 795     if (!swapchain->desc.backbuffer_count)
 796     {
 797         TRACE("Single buffered rendering.\n");
 798         swapchain->render_to_fbo = FALSE;
 799         return;
 800     }
 801
 802     GetClientRect(swapchain->win_handle, &client_rect);
 803
 804     TRACE("Backbuffer %ux%u, window %ux%u.\n",
 805             swapchain->desc.backbuffer_width,
 806             swapchain->desc.backbuffer_height,
 807             client_rect.right, client_rect.bottom);
 808     TRACE("Multisample type %#x, quality %#x.\n",
 809             swapchain->desc.multisample_type,
 810             swapchain->desc.multisample_quality);
 811
 812     if (!wined3d_settings.always_offscreen && !swapchain->desc.multisample_type
 813             && swapchain->desc.backbuffer_width == client_rect.right
 814             && swapchain->desc.backbuffer_height == client_rect.bottom)
 815     {
 816         TRACE("Backbuffer dimensions match window dimensions, rendering onscreen.\n");
 817         swapchain->render_to_fbo = FALSE;
 818         return;
 819     }
 820
 821     TRACE("Rendering to FBO.\n");
 822     swapchain->render_to_fbo = TRUE;
 823 }
 824
 825 /* Do not call while under the GL lock. */
 826 static HRESULT swapchain_init(struct wined3d_swapchain *swapchain, enum wined3d_surface_type surface_type,
 827         struct wined3d_device *device, struct wined3d_swapchain_desc *desc,
 828         void *parent, const struct wined3d_parent_ops *parent_ops)
 829 {
 830     const struct wined3d_adapter *adapter = device->adapter;
 831     const struct wined3d_format *format;
 832     struct wined3d_display_mode mode;
 833     BOOL displaymode_set = FALSE;
 834     RECT client_rect;
 835     HWND window;
 836     HRESULT hr;
 837     UINT i;
 838
 839     if (desc->backbuffer_count > WINED3DPRESENT_BACK_BUFFER_MAX)
 840     {
 841         FIXME("The application requested %u back buffers, this is not supported.\n",
 842                 desc->backbuffer_count);
 843         return WINED3DERR_INVALIDCALL;
 844     }
 845
 846     if (desc->backbuffer_count > 1)
 847     {
 848         FIXME("The application requested more than one back buffer, this is not properly supported.\n"
 849                 "Please configure the application to use double buffering (1 back buffer) if possible.\n");
 850     }
 851
 852     switch (surface_type)
 853     {
 854         case WINED3D_SURFACE_TYPE_GDI:
 855             swapchain->swapchain_ops = &swapchain_gdi_ops;
 856             break;
 857
 858         case WINED3D_SURFACE_TYPE_OPENGL:
 859             swapchain->swapchain_ops = &swapchain_gl_ops;
 860             break;
 861
 862         default:
 863             ERR("Invalid surface type %#x.\n", surface_type);
 864             return WINED3DERR_INVALIDCALL;
 865     }
 866
 867     window = desc->device_window ? desc->device_window : device->create_parms.focus_window;
 868
 869     swapchain->device = device;
 870     swapchain->parent = parent;
 871     swapchain->parent_ops = parent_ops;
 872     swapchain->ref = 1;
 873     swapchain->win_handle = window;
 874     swapchain->device_window = window;
 875
 876     wined3d_get_adapter_display_mode(device->wined3d, adapter->ordinal, &mode, NULL);
 877     swapchain->orig_width = mode.width;
 878     swapchain->orig_height = mode.height;
 879     swapchain->orig_fmt = mode.format_id;
 880     format = wined3d_get_format(&adapter->gl_info, mode.format_id);
 881
 882     GetClientRect(window, &client_rect);
 883     if (desc->windowed
 884             && (!desc->backbuffer_width || !desc->backbuffer_height
 885             || desc->backbuffer_format == WINED3DFMT_UNKNOWN))
 886     {
 887
 888         if (!desc->backbuffer_width)
 889         {
 890             desc->backbuffer_width = client_rect.right;
 891             TRACE("Updating width to %u.\n", desc->backbuffer_width);
 892         }
 893
 894         if (!desc->backbuffer_height)
 895         {
 896             desc->backbuffer_height = client_rect.bottom;
 897             TRACE("Updating height to %u.\n", desc->backbuffer_height);
 898         }
 899
 900         if (desc->backbuffer_format == WINED3DFMT_UNKNOWN)
 901         {
 902             desc->backbuffer_format = swapchain->orig_fmt;
 903             TRACE("Updating format to %s.\n", debug_d3dformat(swapchain->orig_fmt));
 904         }
 905     }
 906     swapchain->desc = *desc;
 907     swapchain_update_render_to_fbo(swapchain);
 908
 909     TRACE("Creating front buffer.\n");
 910     if (FAILED(hr = device->device_parent->ops->create_swapchain_surface(device->device_parent, parent,
 911             swapchain->desc.backbuffer_width, swapchain->desc.backbuffer_height,
 912             swapchain->desc.backbuffer_format, WINED3DUSAGE_RENDERTARGET,
 913             swapchain->desc.multisample_type, swapchain->desc.multisample_quality,
 914             &swapchain->front_buffer)))
 915     {
 916         WARN("Failed to create front buffer, hr %#x.\n", hr);
 917         goto err;
 918     }
 919
 920     surface_set_container(swapchain->front_buffer, WINED3D_CONTAINER_SWAPCHAIN, swapchain);
 921     if (surface_type == WINED3D_SURFACE_TYPE_OPENGL)
 922         surface_modify_location(swapchain->front_buffer, SFLAG_INDRAWABLE, TRUE);
 923
 924     /* MSDN says we're only allowed a single fullscreen swapchain per device,
 925      * so we should really check to see if there is a fullscreen swapchain
 926      * already. Does a single head count as full screen? */
 927
 928     if (!desc->windowed)
 929     {
 930         struct wined3d_display_mode mode;
 931
 932         /* Change the display settings */
 933         mode.width = desc->backbuffer_width;
 934         mode.height = desc->backbuffer_height;
 935         mode.format_id = desc->backbuffer_format;
 936         mode.refresh_rate = desc->refresh_rate;
 937         mode.scanline_ordering = WINED3D_SCANLINE_ORDERING_UNKNOWN;
 938
 939         if (FAILED(hr = wined3d_set_adapter_display_mode(device->wined3d, device->adapter->ordinal, &mode)))
 940         {
 941             WARN("Failed to set display mode, hr %#x.\n", hr);
 942             goto err;
 943         }
 944         displaymode_set = TRUE;
 945     }
 946
 947     if (surface_type == WINED3D_SURFACE_TYPE_OPENGL)
 948     {
 949         static const enum wined3d_format_id formats[] =
 950         {
 951             WINED3DFMT_D24_UNORM_S8_UINT,
 952             WINED3DFMT_D32_UNORM,
 953             WINED3DFMT_R24_UNORM_X8_TYPELESS,
 954             WINED3DFMT_D16_UNORM,
 955             WINED3DFMT_S1_UINT_D15_UNORM
 956         };
 957
 958         const struct wined3d_gl_info *gl_info = &device->adapter->gl_info;
 959
 960         swapchain->context = HeapAlloc(GetProcessHeap(), 0, sizeof(*swapchain->context));
 961         if (!swapchain->context)
 962         {
 963             ERR("Failed to create the context array.\n");
 964             hr = E_OUTOFMEMORY;
 965             goto err;
 966         }
 967         swapchain->num_contexts = 1;
 968
 969         /* In WGL both color, depth and stencil are features of a pixel format. In case of D3D they are separate.
 970          * You are able to add a depth + stencil surface at a later stage when you need it.
 971          * In order to support this properly in WineD3D we need the ability to recreate the opengl context and
 972          * drawable when this is required. This is very tricky as we need to reapply ALL opengl states for the new
 973          * context, need torecreate shaders, textures and other resources.
 974          *
 975          * The context manager already takes care of the state problem and for the other tasks code from Reset
 976          * can be used. These changes are way to risky during the 1.0 code freeze which is taking place right now.
 977          * Likely a lot of other new bugs will be exposed. For that reason request a depth stencil surface all the
 978          * time. It can cause a slight performance hit but fixes a lot of regressions. A fixme reminds of that this
 979          * issue needs to be fixed. */
 980         for (i = 0; i < (sizeof(formats) / sizeof(*formats)); i++)
 981         {
 982             swapchain->ds_format = wined3d_get_format(gl_info, formats[i]);
 983             swapchain->context[0] = context_create(swapchain, swapchain->front_buffer, swapchain->ds_format);
 984             if (swapchain->context[0]) break;
 985             TRACE("Depth stencil format %s is not supported, trying next format\n",
 986                   debug_d3dformat(formats[i]));
 987         }
 988
 989         if (!swapchain->context[0])
 990         {
 991             WARN("Failed to create context.\n");
 992             hr = WINED3DERR_NOTAVAILABLE;
 993             goto err;
 994         }
 995
 996         if (wined3d_settings.offscreen_rendering_mode != ORM_FBO
 997                 && (!desc->enable_auto_depth_stencil
 998                 || swapchain->desc.auto_depth_stencil_format != swapchain->ds_format->id))
 999         {
1000             FIXME("Add OpenGL context recreation support to context_validate_onscreen_formats\n");
1001         }
1002         context_release(swapchain->context[0]);
1003     }
1004
1005     if (swapchain->desc.backbuffer_count > 0)
1006     {
1007         swapchain->back_buffers = HeapAlloc(GetProcessHeap(), 0,
1008                 sizeof(*swapchain->back_buffers) * swapchain->desc.backbuffer_count);
1009         if (!swapchain->back_buffers)
1010         {
1011             ERR("Failed to allocate backbuffer array memory.\n");
1012             hr = E_OUTOFMEMORY;
1013             goto err;
1014         }
1015
1016         for (i = 0; i < swapchain->desc.backbuffer_count; ++i)
1017         {
1018             TRACE("Creating back buffer %u.\n", i);
1019             if (FAILED(hr = device->device_parent->ops->create_swapchain_surface(device->device_parent, parent,
1020                     swapchain->desc.backbuffer_width, swapchain->desc.backbuffer_height,
1021                     swapchain->desc.backbuffer_format, WINED3DUSAGE_RENDERTARGET,
1022                     swapchain->desc.multisample_type, swapchain->desc.multisample_quality,
1023                     &swapchain->back_buffers[i])))
1024             {
1025                 WARN("Failed to create back buffer %u, hr %#x.\n", i, hr);
1026                 goto err;
1027             }
1028
1029             surface_set_container(swapchain->back_buffers[i], WINED3D_CONTAINER_SWAPCHAIN, swapchain);
1030         }
1031     }
1032
1033     /* Swapchains share the depth/stencil buffer, so only create a single depthstencil surface. */
1034     if (desc->enable_auto_depth_stencil && surface_type == WINED3D_SURFACE_TYPE_OPENGL)
1035     {
1036         TRACE("Creating depth/stencil buffer.\n");
1037         if (!device->auto_depth_stencil)
1038         {
1039             if (FAILED(hr = device->device_parent->ops->create_swapchain_surface(device->device_parent,
1040                     device->device_parent, swapchain->desc.backbuffer_width, swapchain->desc.backbuffer_height,
1041                     swapchain->desc.auto_depth_stencil_format, WINED3DUSAGE_DEPTHSTENCIL,
1042                     swapchain->desc.multisample_type, swapchain->desc.multisample_quality,
1043                     &device->auto_depth_stencil)))
1044             {
1045                 WARN("Failed to create the auto depth stencil, hr %#x.\n", hr);
1046                 goto err;
1047             }
1048
1049             surface_set_container(device->auto_depth_stencil, WINED3D_CONTAINER_NONE, NULL);
1050         }
1051     }
1052
1053     wined3d_swapchain_get_gamma_ramp(swapchain, &swapchain->orig_gamma);
1054
1055     return WINED3D_OK;
1056
1057 err:
1058     if (displaymode_set)
1059     {
1060         DEVMODEW devmode;
1061
1062         ClipCursor(NULL);
1063
1064         /* Change the display settings */
1065         memset(&devmode, 0, sizeof(devmode));
1066         devmode.dmSize = sizeof(devmode);
1067         devmode.dmFields = DM_BITSPERPEL | DM_PELSWIDTH | DM_PELSHEIGHT;
1068         devmode.dmBitsPerPel = format->byte_count * CHAR_BIT;
1069         devmode.dmPelsWidth = swapchain->orig_width;
1070         devmode.dmPelsHeight = swapchain->orig_height;
1071         ChangeDisplaySettingsExW(adapter->DeviceName, &devmode, NULL, CDS_FULLSCREEN, NULL);
1072     }
1073
1074     if (swapchain->back_buffers)
1075     {
1076         for (i = 0; i < swapchain->desc.backbuffer_count; ++i)
1077         {
1078             if (swapchain->back_buffers[i])
1079             {
1080                 surface_set_container(swapchain->back_buffers[i], WINED3D_CONTAINER_NONE, NULL);
1081                 wined3d_surface_decref(swapchain->back_buffers[i]);
1082             }
1083         }
1084         HeapFree(GetProcessHeap(), 0, swapchain->back_buffers);
1085     }
1086
1087     if (swapchain->context)
1088     {
1089         if (swapchain->context[0])
1090         {
1091             context_release(swapchain->context[0]);
1092             context_destroy(device, swapchain->context[0]);
1093             swapchain->num_contexts = 0;
1094         }
1095         HeapFree(GetProcessHeap(), 0, swapchain->context);
1096     }
1097
1098     if (swapchain->front_buffer)
1099     {
1100         surface_set_container(swapchain->front_buffer, WINED3D_CONTAINER_NONE, NULL);
1101         wined3d_surface_decref(swapchain->front_buffer);
1102     }
1103
1104     return hr;
1105 }
1106
1107 /* Do not call while under the GL lock. */
1108 HRESULT CDECL wined3d_swapchain_create(struct wined3d_device *device,
1109         struct wined3d_swapchain_desc *desc, enum wined3d_surface_type surface_type,
1110         void *parent, const struct wined3d_parent_ops *parent_ops,
1111         struct wined3d_swapchain **swapchain)
1112 {
1113     struct wined3d_swapchain *object;
1114     HRESULT hr;
1115
1116     TRACE("device %p, desc %p, swapchain %p, parent %p, surface_type %#x.\n",
1117             device, desc, swapchain, parent, surface_type);
1118
1119     object = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*object));
1120     if (!object)
1121     {
1122         ERR("Failed to allocate swapchain memory.\n");
1123         return E_OUTOFMEMORY;
1124     }
1125
1126     hr = swapchain_init(object, surface_type, device, desc, parent, parent_ops);
1127     if (FAILED(hr))
1128     {
1129         WARN("Failed to initialize swapchain, hr %#x.\n", hr);
1130         HeapFree(GetProcessHeap(), 0, object);
1131         return hr;
1132     }
1133
1134     TRACE("Created swapchain %p.\n", object);
1135     *swapchain = object;
1136
1137     return WINED3D_OK;
1138 }
1139
1140 /* Do not call while under the GL lock. */
1141 static struct wined3d_context *swapchain_create_context(struct wined3d_swapchain *swapchain)
1142 {
1143     struct wined3d_context **newArray;
1144     struct wined3d_context *ctx;
1145
1146     TRACE("Creating a new context for swapchain %p, thread %u.\n", swapchain, GetCurrentThreadId());
1147
1148     if (!(ctx = context_create(swapchain, swapchain->front_buffer, swapchain->ds_format)))
1149     {
1150         ERR("Failed to create a new context for the swapchain\n");
1151         return NULL;
1152     }
1153     context_release(ctx);
1154
1155     newArray = HeapAlloc(GetProcessHeap(), 0, sizeof(*newArray) * (swapchain->num_contexts + 1));
1156     if(!newArray) {
1157         ERR("Out of memory when trying to allocate a new context array\n");
1158         context_destroy(swapchain->device, ctx);
1159         return NULL;
1160     }
1161     memcpy(newArray, swapchain->context, sizeof(*newArray) * swapchain->num_contexts);
1162     HeapFree(GetProcessHeap(), 0, swapchain->context);
1163     newArray[swapchain->num_contexts] = ctx;
1164     swapchain->context = newArray;
1165     swapchain->num_contexts++;
1166
1167     TRACE("Returning context %p\n", ctx);
1168     return ctx;
1169 }
1170
1171 void swapchain_destroy_contexts(struct wined3d_swapchain *swapchain)
1172 {
1173     unsigned int i;
1174
1175     for (i = 0; i < swapchain->num_contexts; ++i)
1176     {
1177         context_destroy(swapchain->device, swapchain->context[i]);
1178     }
1179     swapchain->num_contexts = 0;
1180 }
1181
1182 struct wined3d_context *swapchain_get_context(struct wined3d_swapchain *swapchain)
1183 {
1184     DWORD tid = GetCurrentThreadId();
1185     unsigned int i;
1186
1187     for (i = 0; i < swapchain->num_contexts; ++i)
1188     {
1189         if (swapchain->context[i]->tid == tid)
1190             return swapchain->context[i];
1191     }
1192
1193     /* Create a new context for the thread */
1194     return swapchain_create_context(swapchain);
1195 }
1196
1197 void get_drawable_size_swapchain(const struct wined3d_context *context, UINT *width, UINT *height)
1198 {
1199     /* The drawable size of an onscreen drawable is the surface size.
1200      * (Actually: The window size, but the surface is created in window size) */
1201     *width = context->current_rt->resource.width;
1202     *height = context->current_rt->resource.height;
1203 }
1204
1205 HDC swapchain_get_backup_dc(struct wined3d_swapchain *swapchain)
1206 {
1207     if (!swapchain->backup_dc)
1208     {
1209         TRACE("Creating the backup window for swapchain %p.\n", swapchain);
1210
1211         if (!(swapchain->backup_wnd = CreateWindowA(WINED3D_OPENGL_WINDOW_CLASS_NAME, "WineD3D fake window",
1212                 WS_OVERLAPPEDWINDOW, 10, 10, 10, 10, NULL, NULL, NULL, NULL)))
1213         {
1214             ERR("Failed to create a window.\n");
1215             return NULL;
1216         }
1217
1218         if (!(swapchain->backup_dc = GetDC(swapchain->backup_wnd)))
1219         {
1220             ERR("Failed to get a DC.\n");
1221             DestroyWindow(swapchain->backup_wnd);
1222             swapchain->backup_wnd = NULL;
1223             return NULL;
1224         }
1225     }
1226
1227     return swapchain->backup_dc;
1228 }
1229
1230 void swapchain_update_draw_bindings(struct wined3d_swapchain *swapchain)
1231 {
1232     UINT i;
1233
1234     surface_update_draw_binding(swapchain->front_buffer);
1235
1236     for (i = 0; i < swapchain->desc.backbuffer_count; ++i)
1237     {
1238         surface_update_draw_binding(swapchain->back_buffers[i]);
1239     }
1240 }