src/gallium/state_trackers/nine/swapchain9.c

   1 /*
   2  * Copyright 2011 Joakim Sindholt <opensource@zhasha.com>
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * on the rights to use, copy, modify, merge, publish, distribute, sub
   8  * license, and/or sell copies of the Software, and to permit persons to whom
   9  * the Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice (including the next
  12  * paragraph) shall be included in all copies or substantial portions of the
  13  * Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
  18  * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
  19  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  20  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  21  * USE OR OTHER DEALINGS IN THE SOFTWARE. */
  22
  23 #include "swapchain9.h"
  24 #include "surface9.h"
  25 #include "device9.h"
  26
  27 #include "nine_helpers.h"
  28 #include "nine_pipe.h"
  29 #include "nine_dump.h"
  30
  31 #include "util/u_atomic.h"
  32 #include "util/u_inlines.h"
  33 #include "util/u_surface.h"
  34 #include "hud/hud_context.h"
  35 #include "state_tracker/drm_driver.h"
  36
  37 #include "threadpool.h"
  38
  39 #define DBG_CHANNEL DBG_SWAPCHAIN
  40
  41 #define UNTESTED(n) DBG("UNTESTED point %d. Please tell if it worked\n", n)
  42
  43 HRESULT
  44 NineSwapChain9_ctor( struct NineSwapChain9 *This,
  45                      struct NineUnknownParams *pParams,
  46                      BOOL implicit,
  47                      ID3DPresent *pPresent,
  48                      D3DPRESENT_PARAMETERS *pPresentationParameters,
  49                      struct d3dadapter9_context *pCTX,
  50                      HWND hFocusWindow,
  51                      D3DDISPLAYMODEEX *mode )
  52 {
  53     HRESULT hr;
  54     int i;
  55
  56     DBG("This=%p pDevice=%p pPresent=%p pCTX=%p hFocusWindow=%p\n",
  57         This, pParams->device, pPresent, pCTX, hFocusWindow);
  58
  59     hr = NineUnknown_ctor(&This->base, pParams);
  60     if (FAILED(hr))
  61         return hr;
  62
  63     This->screen = NineDevice9_GetScreen(This->base.device);
  64     This->implicit = implicit;
  65     This->actx = pCTX;
  66     This->present = pPresent;
  67     This->mode = NULL;
  68
  69     ID3DPresent_AddRef(pPresent);
  70     if (This->base.device->minor_version_num > 2) {
  71         D3DPRESENT_PARAMETERS2 params2;
  72
  73         memset(&params2, 0, sizeof(D3DPRESENT_PARAMETERS2));
  74         params2.AllowDISCARDDelayedRelease = This->actx->discard_delayed_release;
  75         params2.TearFreeDISCARD = This->actx->tearfree_discard;
  76         ID3DPresent_SetPresentParameters2(pPresent, &params2);
  77     }
  78
  79     if (!pPresentationParameters->hDeviceWindow)
  80         pPresentationParameters->hDeviceWindow = hFocusWindow;
  81
  82     This->rendering_done = FALSE;
  83     This->pool = NULL;
  84     for (i = 0; i < D3DPRESENT_BACK_BUFFERS_MAX_EX + 1; i++) {
  85         This->pending_presentation[i] = calloc(1, sizeof(BOOL));
  86         if (!This->pending_presentation[i])
  87             return E_OUTOFMEMORY;
  88     }
  89     return NineSwapChain9_Resize(This, pPresentationParameters, mode);
  90 }
  91
  92 static D3DWindowBuffer *
  93 D3DWindowBuffer_create(struct NineSwapChain9 *This,
  94                        struct pipe_resource *resource,
  95                        int depth,
  96                        int for_frontbuffer_reading)
  97 {
  98     D3DWindowBuffer *ret;
  99     struct pipe_context *pipe = nine_context_get_pipe_acquire(This->base.device);
 100     struct winsys_handle whandle;
 101     int stride, dmaBufFd;
 102     HRESULT hr;
 103
 104     memset(&whandle, 0, sizeof(whandle));
 105     whandle.type = WINSYS_HANDLE_TYPE_FD;
 106     This->screen->resource_get_handle(This->screen, pipe, resource,
 107                                       &whandle,
 108                                       for_frontbuffer_reading ?
 109                                           PIPE_HANDLE_USAGE_FRAMEBUFFER_WRITE :
 110                                           PIPE_HANDLE_USAGE_EXPLICIT_FLUSH);
 111     nine_context_get_pipe_release(This->base.device);
 112     stride = whandle.stride;
 113     dmaBufFd = whandle.handle;
 114     hr = ID3DPresent_NewD3DWindowBufferFromDmaBuf(This->present,
 115                                                   dmaBufFd,
 116                                                   resource->width0,
 117                                                   resource->height0,
 118                                                   stride,
 119                                                   depth,
 120                                                   32,
 121                                                   &ret);
 122     assert (SUCCEEDED(hr));
 123
 124     if (FAILED(hr)) {
 125         ERR("Failed to create new D3DWindowBufferFromDmaBuf\n");
 126         return NULL;
 127     }
 128     return ret;
 129 }
 130
 131 static void
 132 D3DWindowBuffer_release(struct NineSwapChain9 *This,
 133                         D3DWindowBuffer *present_handle)
 134 {
 135     int i;
 136
 137     /* IsBufferReleased API not available */
 138     if (This->base.device->minor_version_num <= 2) {
 139         ID3DPresent_DestroyD3DWindowBuffer(This->present, present_handle);
 140         return;
 141     }
 142
 143     /* Add it to the 'pending release' list */
 144     for (i = 0; i < D3DPRESENT_BACK_BUFFERS_MAX_EX + 1; i++) {
 145         if (!This->present_handles_pending_release[i]) {
 146             This->present_handles_pending_release[i] = present_handle;
 147             break;
 148         }
 149     }
 150     if (i == (D3DPRESENT_BACK_BUFFERS_MAX_EX + 1)) {
 151         ERR("Server not releasing buffers...\n");
 152         assert(false);
 153     }
 154
 155     /* Destroy elements of the list released by the server */
 156     for (i = 0; i < D3DPRESENT_BACK_BUFFERS_MAX_EX + 1; i++) {
 157         if (This->present_handles_pending_release[i] &&
 158             ID3DPresent_IsBufferReleased(This->present, This->present_handles_pending_release[i])) {
 159             /* WaitBufferReleased also waits the presentation feedback
 160              * (which should arrive at about the same time),
 161              * while IsBufferReleased doesn't. DestroyD3DWindowBuffer unfortunately
 162              * checks it to release immediately all data, else the release
 163              * is postponed for This->present release. To avoid leaks (we may handle
 164              * a lot of resize), call WaitBufferReleased. */
 165             ID3DPresent_WaitBufferReleased(This->present, This->present_handles_pending_release[i]);
 166             ID3DPresent_DestroyD3DWindowBuffer(This->present, This->present_handles_pending_release[i]);
 167             This->present_handles_pending_release[i] = NULL;
 168         }
 169     }
 170 }
 171
 172 static int
 173 NineSwapChain9_GetBackBufferCountForParams( struct NineSwapChain9 *This,
 174                                             D3DPRESENT_PARAMETERS *pParams );
 175
 176 HRESULT
 177 NineSwapChain9_Resize( struct NineSwapChain9 *This,
 178                        D3DPRESENT_PARAMETERS *pParams,
 179                        D3DDISPLAYMODEEX *mode )
 180 {
 181     struct NineDevice9 *pDevice = This->base.device;
 182     D3DSURFACE_DESC desc;
 183     HRESULT hr;
 184     struct pipe_resource *resource, tmplt;
 185     enum pipe_format pf;
 186     BOOL has_present_buffers = FALSE;
 187     int depth;
 188     unsigned i, oldBufferCount, newBufferCount;
 189     D3DMULTISAMPLE_TYPE multisample_type;
 190
 191     DBG("This=%p pParams=%p\n", This, pParams);
 192     user_assert(pParams != NULL, E_POINTER);
 193     user_assert(pParams->SwapEffect, D3DERR_INVALIDCALL);
 194     user_assert((pParams->SwapEffect != D3DSWAPEFFECT_COPY) ||
 195                 (pParams->BackBufferCount <= 1), D3DERR_INVALIDCALL);
 196     user_assert(pDevice->ex || pParams->BackBufferCount <=
 197                 D3DPRESENT_BACK_BUFFERS_MAX, D3DERR_INVALIDCALL);
 198     user_assert(!pDevice->ex || pParams->BackBufferCount <=
 199                 D3DPRESENT_BACK_BUFFERS_MAX_EX, D3DERR_INVALIDCALL);
 200     user_assert(pDevice->ex ||
 201                 (pParams->SwapEffect == D3DSWAPEFFECT_FLIP) ||
 202                 (pParams->SwapEffect == D3DSWAPEFFECT_COPY) ||
 203                 (pParams->SwapEffect == D3DSWAPEFFECT_DISCARD), D3DERR_INVALIDCALL);
 204
 205     DBG("pParams(%p):\n"
 206         "BackBufferWidth: %u\n"
 207         "BackBufferHeight: %u\n"
 208         "BackBufferFormat: %s\n"
 209         "BackBufferCount: %u\n"
 210         "MultiSampleType: %u\n"
 211         "MultiSampleQuality: %u\n"
 212         "SwapEffect: %u\n"
 213         "hDeviceWindow: %p\n"
 214         "Windowed: %i\n"
 215         "EnableAutoDepthStencil: %i\n"
 216         "AutoDepthStencilFormat: %s\n"
 217         "Flags: %s\n"
 218         "FullScreen_RefreshRateInHz: %u\n"
 219         "PresentationInterval: %x\n", pParams,
 220         pParams->BackBufferWidth, pParams->BackBufferHeight,
 221         d3dformat_to_string(pParams->BackBufferFormat),
 222         pParams->BackBufferCount,
 223         pParams->MultiSampleType, pParams->MultiSampleQuality,
 224         pParams->SwapEffect, pParams->hDeviceWindow, pParams->Windowed,
 225         pParams->EnableAutoDepthStencil,
 226         d3dformat_to_string(pParams->AutoDepthStencilFormat),
 227         nine_D3DPRESENTFLAG_to_str(pParams->Flags),
 228         pParams->FullScreen_RefreshRateInHz,
 229         pParams->PresentationInterval);
 230
 231     if (pParams->BackBufferCount == 0) {
 232         pParams->BackBufferCount = 1;
 233     }
 234
 235     if (pParams->BackBufferFormat == D3DFMT_UNKNOWN) {
 236         pParams->BackBufferFormat = D3DFMT_A8R8G8B8;
 237     }
 238
 239     This->desired_fences = This->actx->throttling ? This->actx->throttling_value + 1 : 0;
 240     /* +1 because we add the fence of the current buffer before popping an old one */
 241     if (This->desired_fences > DRI_SWAP_FENCES_MAX)
 242         This->desired_fences = DRI_SWAP_FENCES_MAX;
 243
 244     if (This->actx->vblank_mode == 0)
 245         pParams->PresentationInterval = D3DPRESENT_INTERVAL_IMMEDIATE;
 246     else if (This->actx->vblank_mode == 3)
 247         pParams->PresentationInterval = D3DPRESENT_INTERVAL_ONE;
 248
 249     if (mode && This->mode) {
 250         *(This->mode) = *mode;
 251     } else if (mode) {
 252         This->mode = malloc(sizeof(D3DDISPLAYMODEEX));
 253         memcpy(This->mode, mode, sizeof(D3DDISPLAYMODEEX));
 254     } else {
 255         free(This->mode);
 256         This->mode = NULL;
 257     }
 258
 259     /* Note: It is the role of the backend to fill if necessary
 260      * BackBufferWidth and BackBufferHeight */
 261     hr = ID3DPresent_SetPresentParameters(This->present, pParams, This->mode);
 262     if (hr != D3D_OK)
 263         return hr;
 264
 265     oldBufferCount = This->num_back_buffers;
 266     newBufferCount = NineSwapChain9_GetBackBufferCountForParams(This, pParams);
 267
 268     multisample_type = pParams->MultiSampleType;
 269
 270     /* Map MultiSampleQuality to MultiSampleType */
 271     hr = d3dmultisample_type_check(This->screen, pParams->BackBufferFormat,
 272                                    &multisample_type,
 273                                    pParams->MultiSampleQuality,
 274                                    NULL);
 275     if (FAILED(hr)) {
 276         return hr;
 277     }
 278
 279     pf = d3d9_to_pipe_format_checked(This->screen, pParams->BackBufferFormat,
 280                                      PIPE_TEXTURE_2D, multisample_type,
 281                                      PIPE_BIND_RENDER_TARGET, FALSE, FALSE);
 282
 283     if (This->actx->linear_framebuffer ||
 284         (pf != PIPE_FORMAT_B8G8R8X8_UNORM &&
 285         pf != PIPE_FORMAT_B8G8R8A8_UNORM) ||
 286         pParams->SwapEffect != D3DSWAPEFFECT_DISCARD ||
 287         multisample_type >= 2 ||
 288         (This->actx->ref && This->actx->ref == This->screen))
 289         has_present_buffers = TRUE;
 290
 291     /* Note: the buffer depth has to match the window depth.
 292      * In practice, ARGB buffers can be used with windows
 293      * of depth 24. Windows of depth 32 are extremely rare.
 294      * So even if the buffer is ARGB, say it is depth 24.
 295      * It is common practice, for example that's how
 296      * glamor implements depth 24.
 297      * TODO: handle windows with other depths. Not possible in the short term.
 298      * For example 16 bits.*/
 299     depth = 24;
 300
 301     memset(&tmplt, 0, sizeof(tmplt));
 302     tmplt.target = PIPE_TEXTURE_2D;
 303     tmplt.width0 = pParams->BackBufferWidth;
 304     tmplt.height0 = pParams->BackBufferHeight;
 305     tmplt.depth0 = 1;
 306     tmplt.last_level = 0;
 307     tmplt.array_size = 1;
 308     tmplt.usage = PIPE_USAGE_DEFAULT;
 309     tmplt.flags = 0;
 310
 311     desc.Type = D3DRTYPE_SURFACE;
 312     desc.Pool = D3DPOOL_DEFAULT;
 313     desc.MultiSampleType = pParams->MultiSampleType;
 314     desc.MultiSampleQuality = pParams->MultiSampleQuality;
 315     desc.Width = pParams->BackBufferWidth;
 316     desc.Height = pParams->BackBufferHeight;
 317
 318     for (i = 0; i < oldBufferCount; i++) {
 319         if (This->tasks[i])
 320             _mesa_threadpool_wait_for_task(This->pool, &(This->tasks[i]));
 321     }
 322     memset(This->tasks, 0, sizeof(This->tasks));
 323
 324     if (This->pool) {
 325         _mesa_threadpool_destroy(This, This->pool);
 326         This->pool = NULL;
 327     }
 328     This->enable_threadpool = This->actx->thread_submit && (pParams->SwapEffect != D3DSWAPEFFECT_COPY);
 329     if (This->enable_threadpool)
 330         This->pool = _mesa_threadpool_create(This);
 331     if (!This->pool)
 332         This->enable_threadpool = FALSE;
 333
 334     for (i = 0; i < oldBufferCount; i++) {
 335         D3DWindowBuffer_release(This, This->present_handles[i]);
 336         This->present_handles[i] = NULL;
 337         if (This->present_buffers[i])
 338             pipe_resource_reference(&(This->present_buffers[i]), NULL);
 339     }
 340
 341     if (newBufferCount != oldBufferCount) {
 342         for (i = newBufferCount; i < oldBufferCount;
 343              ++i)
 344             NineUnknown_Detach(NineUnknown(This->buffers[i]));
 345
 346         for (i = oldBufferCount; i < newBufferCount; ++i) {
 347             This->buffers[i] = NULL;
 348             This->present_handles[i] = NULL;
 349         }
 350     }
 351     This->num_back_buffers = newBufferCount;
 352
 353     for (i = 0; i < newBufferCount; ++i) {
 354         tmplt.bind = PIPE_BIND_SAMPLER_VIEW | PIPE_BIND_RENDER_TARGET;
 355         tmplt.nr_samples = multisample_type;
 356         tmplt.nr_storage_samples = multisample_type;
 357         if (!has_present_buffers)
 358             tmplt.bind |= NINE_BIND_PRESENTBUFFER_FLAGS;
 359         tmplt.format = d3d9_to_pipe_format_checked(This->screen,
 360                                                    pParams->BackBufferFormat,
 361                                                    PIPE_TEXTURE_2D,
 362                                                    tmplt.nr_samples,
 363                                                    tmplt.bind, FALSE, FALSE);
 364         if (tmplt.format == PIPE_FORMAT_NONE)
 365             return D3DERR_INVALIDCALL;
 366         resource = This->screen->resource_create(This->screen, &tmplt);
 367         if (!resource) {
 368             DBG("Failed to create pipe_resource.\n");
 369             return D3DERR_OUTOFVIDEOMEMORY;
 370         }
 371         if (pParams->Flags & D3DPRESENTFLAG_LOCKABLE_BACKBUFFER)
 372             resource->flags |= NINE_RESOURCE_FLAG_LOCKABLE;
 373         if (This->buffers[i]) {
 374             NineSurface9_SetMultiSampleType(This->buffers[i], desc.MultiSampleType);
 375             NineSurface9_SetResourceResize(This->buffers[i], resource);
 376             if (has_present_buffers)
 377                 pipe_resource_reference(&resource, NULL);
 378         } else {
 379             desc.Format = pParams->BackBufferFormat;
 380             desc.Usage = D3DUSAGE_RENDERTARGET;
 381             hr = NineSurface9_new(pDevice, NineUnknown(This), resource, NULL, 0,
 382                                   0, 0, &desc, &This->buffers[i]);
 383             if (has_present_buffers)
 384                 pipe_resource_reference(&resource, NULL);
 385             if (FAILED(hr)) {
 386                 DBG("Failed to create RT surface.\n");
 387                 return hr;
 388             }
 389             This->buffers[i]->base.base.forward = FALSE;
 390         }
 391         if (has_present_buffers) {
 392             tmplt.format = PIPE_FORMAT_B8G8R8X8_UNORM;
 393             tmplt.bind = NINE_BIND_PRESENTBUFFER_FLAGS;
 394             tmplt.nr_samples = 0;
 395             tmplt.nr_storage_samples = 0;
 396             if (This->actx->linear_framebuffer)
 397                 tmplt.bind |= PIPE_BIND_LINEAR;
 398             if (pParams->SwapEffect != D3DSWAPEFFECT_DISCARD)
 399                 tmplt.bind |= PIPE_BIND_RENDER_TARGET;
 400             resource = This->screen->resource_create(This->screen, &tmplt);
 401             pipe_resource_reference(&(This->present_buffers[i]), resource);
 402         }
 403         This->present_handles[i] = D3DWindowBuffer_create(This, resource, depth, false);
 404         pipe_resource_reference(&resource, NULL);
 405         if (!This->present_handles[i]) {
 406             return D3DERR_DRIVERINTERNALERROR;
 407         }
 408     }
 409     if (pParams->EnableAutoDepthStencil) {
 410         tmplt.bind = d3d9_get_pipe_depth_format_bindings(pParams->AutoDepthStencilFormat);
 411         tmplt.nr_samples = multisample_type;
 412         tmplt.nr_storage_samples = multisample_type;
 413         tmplt.format = d3d9_to_pipe_format_checked(This->screen,
 414                                                    pParams->AutoDepthStencilFormat,
 415                                                    PIPE_TEXTURE_2D,
 416                                                    tmplt.nr_samples,
 417                                                    tmplt.bind,
 418                                                    FALSE, FALSE);
 419
 420         if (tmplt.format == PIPE_FORMAT_NONE)
 421             return D3DERR_INVALIDCALL;
 422
 423         if (This->zsbuf) {
 424             resource = This->screen->resource_create(This->screen, &tmplt);
 425             if (!resource) {
 426                 DBG("Failed to create pipe_resource for depth buffer.\n");
 427                 return D3DERR_OUTOFVIDEOMEMORY;
 428             }
 429
 430             NineSurface9_SetMultiSampleType(This->zsbuf, desc.MultiSampleType);
 431             NineSurface9_SetResourceResize(This->zsbuf, resource);
 432             pipe_resource_reference(&resource, NULL);
 433         } else {
 434             hr = NineDevice9_CreateDepthStencilSurface(pDevice,
 435                                                        pParams->BackBufferWidth,
 436                                                        pParams->BackBufferHeight,
 437                                                        pParams->AutoDepthStencilFormat,
 438                                                        pParams->MultiSampleType,
 439                                                        pParams->MultiSampleQuality,
 440                                                        0,
 441                                                        (IDirect3DSurface9 **)&This->zsbuf,
 442                                                        NULL);
 443             if (FAILED(hr)) {
 444                 DBG("Failed to create ZS surface.\n");
 445                 return hr;
 446             }
 447             NineUnknown_ConvertRefToBind(NineUnknown(This->zsbuf));
 448         }
 449     }
 450
 451     This->params = *pParams;
 452
 453     return D3D_OK;
 454 }
 455
 456 /* Throttling: code adapted from the dri state tracker */
 457
 458 /**
 459  * swap_fences_pop_front - pull a fence from the throttle queue
 460  *
 461  * If the throttle queue is filled to the desired number of fences,
 462  * pull fences off the queue until the number is less than the desired
 463  * number of fences, and return the last fence pulled.
 464  */
 465 static struct pipe_fence_handle *
 466 swap_fences_pop_front(struct NineSwapChain9 *This)
 467 {
 468     struct pipe_screen *screen = This->screen;
 469     struct pipe_fence_handle *fence = NULL;
 470
 471     if (This->desired_fences == 0)
 472         return NULL;
 473
 474     if (This->cur_fences >= This->desired_fences) {
 475         screen->fence_reference(screen, &fence, This->swap_fences[This->tail]);
 476         screen->fence_reference(screen, &This->swap_fences[This->tail++], NULL);
 477         This->tail &= DRI_SWAP_FENCES_MASK;
 478         --This->cur_fences;
 479     }
 480     return fence;
 481 }
 482
 483
 484 /**
 485  * swap_fences_see_front - same than swap_fences_pop_front without
 486  * pulling
 487  *
 488  */
 489
 490 static struct pipe_fence_handle *
 491 swap_fences_see_front(struct NineSwapChain9 *This)
 492 {
 493     struct pipe_screen *screen = This->screen;
 494     struct pipe_fence_handle *fence = NULL;
 495
 496     if (This->desired_fences == 0)
 497         return NULL;
 498
 499     if (This->cur_fences >= This->desired_fences) {
 500         screen->fence_reference(screen, &fence, This->swap_fences[This->tail]);
 501     }
 502     return fence;
 503 }
 504
 505
 506 /**
 507  * swap_fences_push_back - push a fence onto the throttle queue at the back
 508  *
 509  * push a fence onto the throttle queue and pull fences of the queue
 510  * so that the desired number of fences are on the queue.
 511  */
 512 static void
 513 swap_fences_push_back(struct NineSwapChain9 *This,
 514                       struct pipe_fence_handle *fence)
 515 {
 516     struct pipe_screen *screen = This->screen;
 517
 518     if (!fence || This->desired_fences == 0)
 519         return;
 520
 521     while(This->cur_fences == This->desired_fences)
 522         swap_fences_pop_front(This);
 523
 524     This->cur_fences++;
 525     screen->fence_reference(screen, &This->swap_fences[This->head++],
 526                             fence);
 527     This->head &= DRI_SWAP_FENCES_MASK;
 528 }
 529
 530
 531 /**
 532  * swap_fences_unref - empty the throttle queue
 533  *
 534  * pulls fences of the throttle queue until it is empty.
 535  */
 536 static void
 537 swap_fences_unref(struct NineSwapChain9 *This)
 538 {
 539     struct pipe_screen *screen = This->screen;
 540
 541     while(This->cur_fences) {
 542         screen->fence_reference(screen, &This->swap_fences[This->tail++], NULL);
 543         This->tail &= DRI_SWAP_FENCES_MASK;
 544         --This->cur_fences;
 545     }
 546 }
 547
 548 void
 549 NineSwapChain9_dtor( struct NineSwapChain9 *This )
 550 {
 551     unsigned i;
 552
 553     DBG("This=%p\n", This);
 554
 555     if (This->pool)
 556         _mesa_threadpool_destroy(This, This->pool);
 557
 558     for (i = 0; i < D3DPRESENT_BACK_BUFFERS_MAX_EX + 1; i++) {
 559         if (This->pending_presentation[i])
 560             FREE(This->pending_presentation[i]);
 561     }
 562
 563     for (i = 0; i < D3DPRESENT_BACK_BUFFERS_MAX_EX + 1; i++) {
 564         if (This->present_handles_pending_release[i])
 565             ID3DPresent_DestroyD3DWindowBuffer(This->present, This->present_handles_pending_release[i]);
 566     }
 567
 568     for (i = 0; i < This->num_back_buffers; i++) {
 569         if (This->buffers[i])
 570             NineUnknown_Detach(NineUnknown(This->buffers[i]));
 571         if (This->present_handles[i])
 572             ID3DPresent_DestroyD3DWindowBuffer(This->present, This->present_handles[i]);
 573         if (This->present_buffers[i])
 574             pipe_resource_reference(&(This->present_buffers[i]), NULL);
 575     }
 576     if (This->zsbuf)
 577         NineUnknown_Unbind(NineUnknown(This->zsbuf));
 578
 579     if (This->present)
 580         ID3DPresent_Release(This->present);
 581
 582     swap_fences_unref(This);
 583     NineUnknown_dtor(&This->base);
 584 }
 585
 586 static void
 587 create_present_buffer( struct NineSwapChain9 *This,
 588                        unsigned int width, unsigned int height,
 589                        struct pipe_resource **resource,
 590                        D3DWindowBuffer **present_handle)
 591 {
 592     struct pipe_resource tmplt;
 593
 594     memset(&tmplt, 0, sizeof(tmplt));
 595     tmplt.target = PIPE_TEXTURE_2D;
 596     tmplt.width0 = width;
 597     tmplt.height0 = height;
 598     tmplt.depth0 = 1;
 599     tmplt.last_level = 0;
 600     tmplt.array_size = 1;
 601     tmplt.usage = PIPE_USAGE_DEFAULT;
 602     tmplt.flags = 0;
 603     tmplt.format = PIPE_FORMAT_B8G8R8X8_UNORM;
 604     tmplt.bind = NINE_BIND_BACKBUFFER_FLAGS |
 605                  NINE_BIND_PRESENTBUFFER_FLAGS;
 606     tmplt.nr_samples = 0;
 607     if (This->actx->linear_framebuffer)
 608         tmplt.bind |= PIPE_BIND_LINEAR;
 609     *resource = This->screen->resource_create(This->screen, &tmplt);
 610
 611     *present_handle = D3DWindowBuffer_create(This, *resource, 24, true);
 612
 613     if (!*present_handle) {
 614         pipe_resource_reference(resource, NULL);
 615     }
 616 }
 617
 618 static void
 619 handle_draw_cursor_and_hud( struct NineSwapChain9 *This, struct pipe_resource *resource)
 620 {
 621     struct NineDevice9 *device = This->base.device;
 622     struct pipe_blit_info blit;
 623     struct pipe_context *pipe;
 624
 625     if (device->cursor.software && device->cursor.visible && device->cursor.w) {
 626         memset(&blit, 0, sizeof(blit));
 627         blit.src.resource = device->cursor.image;
 628         blit.src.level = 0;
 629         blit.src.format = device->cursor.image->format;
 630         blit.src.box.x = 0;
 631         blit.src.box.y = 0;
 632         blit.src.box.z = 0;
 633         blit.src.box.depth = 1;
 634         blit.src.box.width = device->cursor.w;
 635         blit.src.box.height = device->cursor.h;
 636
 637         blit.dst.resource = resource;
 638         blit.dst.level = 0;
 639         blit.dst.format = resource->format;
 640         blit.dst.box.z = 0;
 641         blit.dst.box.depth = 1;
 642
 643         blit.mask = PIPE_MASK_RGBA;
 644         blit.filter = PIPE_TEX_FILTER_NEAREST;
 645         blit.scissor_enable = FALSE;
 646
 647         /* NOTE: blit messes up when box.x + box.width < 0, fix driver
 648          * NOTE2: device->cursor.pos contains coordinates relative to the screen.
 649          * This happens to be also the position of the cursor when we are fullscreen.
 650          * We don't use sw cursor for Windowed mode */
 651         blit.dst.box.x = MAX2(device->cursor.pos.x, 0) - device->cursor.hotspot.x;
 652         blit.dst.box.y = MAX2(device->cursor.pos.y, 0) - device->cursor.hotspot.y;
 653         blit.dst.box.width = blit.src.box.width;
 654         blit.dst.box.height = blit.src.box.height;
 655
 656         DBG("Blitting cursor(%ux%u) to (%i,%i).\n",
 657             blit.src.box.width, blit.src.box.height,
 658             blit.dst.box.x, blit.dst.box.y);
 659
 660         blit.alpha_blend = TRUE;
 661         pipe = NineDevice9_GetPipe(This->base.device);
 662         pipe->blit(pipe, &blit);
 663     }
 664
 665     if (device->hud && resource) {
 666         /* Implicit use of context pipe */
 667         (void)NineDevice9_GetPipe(This->base.device);
 668         hud_run(device->hud, NULL, resource); /* XXX: no offset */
 669         /* HUD doesn't clobber stipple */
 670         nine_state_restore_non_cso(device);
 671     }
 672 }
 673
 674 struct end_present_struct {
 675     struct pipe_screen *screen;
 676     struct pipe_fence_handle *fence_to_wait;
 677     ID3DPresent *present;
 678     D3DWindowBuffer *present_handle;
 679     BOOL *pending_presentation;
 680     HWND hDestWindowOverride;
 681 };
 682
 683 static void work_present(void *data)
 684 {
 685     struct end_present_struct *work = data;
 686     if (work->fence_to_wait) {
 687         (void) work->screen->fence_finish(work->screen, NULL, work->fence_to_wait, PIPE_TIMEOUT_INFINITE);
 688         work->screen->fence_reference(work->screen, &(work->fence_to_wait), NULL);
 689     }
 690     ID3DPresent_PresentBuffer(work->present, work->present_handle, work->hDestWindowOverride, NULL, NULL, NULL, 0);
 691     p_atomic_set(work->pending_presentation, FALSE);
 692     free(work);
 693 }
 694
 695 static void pend_present(struct NineSwapChain9 *This,
 696                          struct pipe_fence_handle *fence,
 697                          HWND hDestWindowOverride)
 698 {
 699     struct end_present_struct *work = calloc(1, sizeof(struct end_present_struct));
 700
 701     work->screen = This->screen;
 702     This->screen->fence_reference(This->screen, &work->fence_to_wait, fence);
 703     work->present = This->present;
 704     work->present_handle = This->present_handles[0];
 705     work->hDestWindowOverride = hDestWindowOverride;
 706     work->pending_presentation = This->pending_presentation[0];
 707     p_atomic_set(work->pending_presentation, TRUE);
 708     This->tasks[0] = _mesa_threadpool_queue_task(This->pool, work_present, work);
 709
 710     return;
 711 }
 712
 713 static inline HRESULT
 714 present( struct NineSwapChain9 *This,
 715          const RECT *pSourceRect,
 716          const RECT *pDestRect,
 717          HWND hDestWindowOverride,
 718          const RGNDATA *pDirtyRegion,
 719          DWORD dwFlags )
 720 {
 721     struct pipe_context *pipe;
 722     struct pipe_resource *resource;
 723     struct pipe_fence_handle *fence;
 724     HRESULT hr;
 725     struct pipe_blit_info blit;
 726     int target_width, target_height, target_depth, i;
 727
 728     DBG("present: This=%p pSourceRect=%p pDestRect=%p "
 729         "pDirtyRegion=%p hDestWindowOverride=%p"
 730         "dwFlags=%d resource=%p\n",
 731         This, pSourceRect, pDestRect, pDirtyRegion,
 732         hDestWindowOverride, (int)dwFlags, This->buffers[0]->base.resource);
 733
 734     if (pSourceRect)
 735         DBG("pSourceRect = (%u..%u)x(%u..%u)\n",
 736             pSourceRect->left, pSourceRect->right,
 737             pSourceRect->top, pSourceRect->bottom);
 738     if (pDestRect)
 739         DBG("pDestRect = (%u..%u)x(%u..%u)\n",
 740             pDestRect->left, pDestRect->right,
 741             pDestRect->top, pDestRect->bottom);
 742
 743     /* TODO: in the case the source and destination rect have different size:
 744      * We need to allocate a new buffer, and do a blit to it to resize.
 745      * We can't use the present_buffer for that since when we created it,
 746      * we couldn't guess which size would have been needed.
 747      * If pDestRect or pSourceRect is null, we have to check the sizes
 748      * from the source size, and the destination window size.
 749      * In this case, either resize rngdata, or pass NULL instead
 750      */
 751     /* Note: This->buffers[0]->level should always be 0 */
 752
 753     if (This->rendering_done)
 754         goto bypass_rendering;
 755
 756     resource = This->buffers[0]->base.resource;
 757
 758     if (This->params.SwapEffect == D3DSWAPEFFECT_DISCARD)
 759         handle_draw_cursor_and_hud(This, resource);
 760
 761     hr = ID3DPresent_GetWindowInfo(This->present, hDestWindowOverride, &target_width, &target_height, &target_depth);
 762     (void)target_depth;
 763
 764     /* Can happen with old Wine (presentation can still succeed),
 765      * or at window destruction.
 766      * Also disable for very old wine as D3DWindowBuffer_release
 767      * cannot do the DestroyD3DWindowBuffer workaround. */
 768     if (FAILED(hr) || target_width == 0 || target_height == 0 ||
 769         This->base.device->minor_version_num <= 2) {
 770         target_width = resource->width0;
 771         target_height = resource->height0;
 772     }
 773
 774     /* Switch to using presentation buffers on window resize.
 775      * Note: Most apps should resize the d3d back buffers when
 776      * a window resize is detected, which will result in a call to
 777      * NineSwapChain9_Resize. Thus everything will get released,
 778      * and it will switch back to not using separate presentation
 779      * buffers. */
 780     if (!This->present_buffers[0] &&
 781         (target_width != resource->width0 || target_height != resource->height0)) {
 782         BOOL failure = false;
 783         struct pipe_resource *new_resource[This->num_back_buffers];
 784         D3DWindowBuffer *new_handles[This->num_back_buffers];
 785         for (i = 0; i < This->num_back_buffers; i++) {
 786             /* Note: if (!new_handles[i]), new_resource[i]
 787              * gets released and contains NULL */
 788             create_present_buffer(This, target_width, target_height, &new_resource[i], &new_handles[i]);
 789             if (!new_handles[i])
 790                 failure = true;
 791         }
 792         if (failure) {
 793             for (i = 0; i < This->num_back_buffers; i++) {
 794                 if (new_resource[i])
 795                     pipe_resource_reference(&new_resource[i], NULL);
 796                 if (new_handles[i])
 797                     D3DWindowBuffer_release(This, new_handles[i]);
 798             }
 799         } else {
 800             for (i = 0; i < This->num_back_buffers; i++) {
 801                 D3DWindowBuffer_release(This, This->present_handles[i]);
 802                 This->present_handles[i] = new_handles[i];
 803                 pipe_resource_reference(&This->present_buffers[i], new_resource[i]);
 804                 pipe_resource_reference(&new_resource[i], NULL);
 805             }
 806         }
 807     }
 808
 809     pipe = NineDevice9_GetPipe(This->base.device);
 810
 811     if (This->present_buffers[0]) {
 812         memset(&blit, 0, sizeof(blit));
 813         blit.src.resource = resource;
 814         blit.src.level = 0;
 815         blit.src.format = resource->format;
 816         blit.src.box.z = 0;
 817         blit.src.box.depth = 1;
 818         blit.src.box.x = 0;
 819         blit.src.box.y = 0;
 820         blit.src.box.width = resource->width0;
 821         blit.src.box.height = resource->height0;
 822
 823         /* Reallocate a new presentation buffer if the target window
 824          * size has changed */
 825         if (target_width != This->present_buffers[0]->width0 ||
 826             target_height != This->present_buffers[0]->height0) {
 827             struct pipe_resource *new_resource;
 828             D3DWindowBuffer *new_handle;
 829
 830             create_present_buffer(This, target_width, target_height, &new_resource, &new_handle);
 831             /* Switch to the new buffer */
 832             if (new_handle) {
 833                 D3DWindowBuffer_release(This, This->present_handles[0]);
 834                 This->present_handles[0] = new_handle;
 835                 pipe_resource_reference(&This->present_buffers[0], new_resource);
 836                 pipe_resource_reference(&new_resource, NULL);
 837             }
 838         }
 839
 840         resource = This->present_buffers[0];
 841
 842         blit.dst.resource = resource;
 843         blit.dst.level = 0;
 844         blit.dst.format = resource->format;
 845         blit.dst.box.z = 0;
 846         blit.dst.box.depth = 1;
 847         blit.dst.box.x = 0;
 848         blit.dst.box.y = 0;
 849         blit.dst.box.width = resource->width0;
 850         blit.dst.box.height = resource->height0;
 851
 852         blit.mask = PIPE_MASK_RGBA;
 853         blit.filter = (blit.dst.box.width == blit.src.box.width &&
 854                        blit.dst.box.height == blit.src.box.height) ?
 855                           PIPE_TEX_FILTER_NEAREST : PIPE_TEX_FILTER_LINEAR;
 856         blit.scissor_enable = FALSE;
 857         blit.alpha_blend = FALSE;
 858
 859         pipe->blit(pipe, &blit);
 860     }
 861
 862     /* The resource we present has to resolve fast clears
 863      * if needed (and other things) */
 864     pipe->flush_resource(pipe, resource);
 865
 866     if (This->params.SwapEffect != D3DSWAPEFFECT_DISCARD)
 867         handle_draw_cursor_and_hud(This, resource);
 868
 869     fence = NULL;
 870     pipe->flush(pipe, &fence, PIPE_FLUSH_END_OF_FRAME);
 871
 872     /* Present now for thread_submit, because we have the fence.
 873      * It's possible we return WASSTILLDRAWING and still Present,
 874      * but it should be fine. */
 875     if (This->enable_threadpool)
 876         pend_present(This, fence, hDestWindowOverride);
 877     if (fence) {
 878         swap_fences_push_back(This, fence);
 879         This->screen->fence_reference(This->screen, &fence, NULL);
 880     }
 881
 882     This->rendering_done = TRUE;
 883 bypass_rendering:
 884
 885     if (dwFlags & D3DPRESENT_DONOTWAIT) {
 886         UNTESTED(2);
 887         BOOL still_draw = FALSE;
 888         fence = swap_fences_see_front(This);
 889         if (fence) {
 890             still_draw = !This->screen->fence_finish(This->screen, NULL, fence, 0);
 891             This->screen->fence_reference(This->screen, &fence, NULL);
 892         }
 893         if (still_draw)
 894             return D3DERR_WASSTILLDRAWING;
 895     }
 896
 897     /* Throttle rendering if needed */
 898     fence = swap_fences_pop_front(This);
 899     if (fence) {
 900         (void) This->screen->fence_finish(This->screen, NULL, fence, PIPE_TIMEOUT_INFINITE);
 901         This->screen->fence_reference(This->screen, &fence, NULL);
 902     }
 903
 904     This->rendering_done = FALSE;
 905
 906     if (!This->enable_threadpool) {
 907         This->tasks[0]=NULL;
 908
 909         hr = ID3DPresent_PresentBuffer(This->present, This->present_handles[0], hDestWindowOverride, pSourceRect, pDestRect, pDirtyRegion, dwFlags);
 910
 911         if (FAILED(hr)) { UNTESTED(3);return hr; }
 912     }
 913
 914     return D3D_OK;
 915 }
 916
 917 HRESULT NINE_WINAPI
 918 NineSwapChain9_Present( struct NineSwapChain9 *This,
 919                         const RECT *pSourceRect,
 920                         const RECT *pDestRect,
 921                         HWND hDestWindowOverride,
 922                         const RGNDATA *pDirtyRegion,
 923                         DWORD dwFlags )
 924 {
 925     struct pipe_resource *res = NULL;
 926     D3DWindowBuffer *handle_temp;
 927     struct threadpool_task *task_temp;
 928     BOOL *pending_presentation_temp;
 929     int i;
 930     HRESULT hr;
 931
 932     DBG("This=%p pSourceRect=%p pDestRect=%p hDestWindowOverride=%p "
 933         "pDirtyRegion=%p dwFlags=%d\n",
 934         This, pSourceRect, pDestRect, hDestWindowOverride,
 935         pDirtyRegion,dwFlags);
 936
 937     if (This->base.device->ex) {
 938         if (NineSwapChain9_GetOccluded(This)) {
 939             DBG("Present is occluded. Returning S_PRESENT_OCCLUDED.\n");
 940             return S_PRESENT_OCCLUDED;
 941         }
 942     } else {
 943         if (NineSwapChain9_GetOccluded(This) ||
 944             NineSwapChain9_ResolutionMismatch(This)) {
 945             This->base.device->device_needs_reset = TRUE;
 946         }
 947         if (This->base.device->device_needs_reset) {
 948             DBG("Device is lost. Returning D3DERR_DEVICELOST.\n");
 949             return D3DERR_DEVICELOST;
 950         }
 951     }
 952
 953     nine_csmt_process(This->base.device);
 954
 955     hr = present(This, pSourceRect, pDestRect,
 956                  hDestWindowOverride, pDirtyRegion, dwFlags);
 957     if (hr == D3DERR_WASSTILLDRAWING)
 958         return hr;
 959
 960     if (This->base.device->minor_version_num > 2 &&
 961         This->actx->discard_delayed_release &&
 962         This->params.SwapEffect == D3DSWAPEFFECT_DISCARD &&
 963         This->params.PresentationInterval == D3DPRESENT_INTERVAL_IMMEDIATE) {
 964         int next_buffer = -1;
 965
 966         while (next_buffer == -1) {
 967             /* Find a free backbuffer */
 968             for (i = 1; i < This->num_back_buffers; i++) {
 969                 if (!p_atomic_read(This->pending_presentation[i]) &&
 970                     ID3DPresent_IsBufferReleased(This->present, This->present_handles[i])) {
 971                     DBG("Found buffer released: %d\n", i);
 972                     next_buffer = i;
 973                     break;
 974                 }
 975             }
 976             if (next_buffer == -1) {
 977                 DBG("Found no buffer released. Waiting for event\n");
 978                 ID3DPresent_WaitBufferReleaseEvent(This->present);
 979             }
 980         }
 981
 982         /* Free the task (we already checked it is finished) */
 983         if (This->tasks[next_buffer])
 984             _mesa_threadpool_wait_for_task(This->pool, &(This->tasks[next_buffer]));
 985         assert(!*This->pending_presentation[next_buffer] && !This->tasks[next_buffer]);
 986         This->tasks[next_buffer] = This->tasks[0];
 987         This->tasks[0] = NULL;
 988         pending_presentation_temp = This->pending_presentation[next_buffer];
 989         This->pending_presentation[next_buffer] = This->pending_presentation[0];
 990         This->pending_presentation[0] = pending_presentation_temp;
 991
 992         /* Switch with the released buffer */
 993         pipe_resource_reference(&res, This->buffers[0]->base.resource);
 994         NineSurface9_SetResourceResize(
 995             This->buffers[0], This->buffers[next_buffer]->base.resource);
 996         NineSurface9_SetResourceResize(
 997             This->buffers[next_buffer], res);
 998         pipe_resource_reference(&res, NULL);
 999
1000         if (This->present_buffers[0]) {
1001             pipe_resource_reference(&res, This->present_buffers[0]);
1002             pipe_resource_reference(&This->present_buffers[0], This->present_buffers[next_buffer]);
1003             pipe_resource_reference(&This->present_buffers[next_buffer], res);
1004             pipe_resource_reference(&res, NULL);
1005         }
1006
1007         handle_temp = This->present_handles[0];
1008         This->present_handles[0] = This->present_handles[next_buffer];
1009         This->present_handles[next_buffer] = handle_temp;
1010     } else {
1011         switch (This->params.SwapEffect) {
1012             case D3DSWAPEFFECT_OVERLAY: /* Not implemented, fallback to FLIP */
1013             case D3DSWAPEFFECT_FLIPEX: /* Allows optimizations over FLIP for windowed mode. */
1014             case D3DSWAPEFFECT_DISCARD: /* Allows optimizations over FLIP */
1015             case D3DSWAPEFFECT_FLIP:
1016                 /* rotate the queue */
1017                 pipe_resource_reference(&res, This->buffers[0]->base.resource);
1018                 for (i = 1; i < This->num_back_buffers; i++) {
1019                     NineSurface9_SetResourceResize(This->buffers[i - 1],
1020                                                    This->buffers[i]->base.resource);
1021                 }
1022                 NineSurface9_SetResourceResize(
1023                     This->buffers[This->num_back_buffers - 1], res);
1024                 pipe_resource_reference(&res, NULL);
1025
1026                 if (This->present_buffers[0]) {
1027                     pipe_resource_reference(&res, This->present_buffers[0]);
1028                     for (i = 1; i < This->num_back_buffers; i++)
1029                         pipe_resource_reference(&(This->present_buffers[i-1]), This->present_buffers[i]);
1030                     pipe_resource_reference(&(This->present_buffers[This->num_back_buffers - 1]), res);
1031                     pipe_resource_reference(&res, NULL);
1032                 }
1033
1034                 handle_temp = This->present_handles[0];
1035                 for (i = 1; i < This->num_back_buffers; i++) {
1036                     This->present_handles[i-1] = This->present_handles[i];
1037                 }
1038                 This->present_handles[This->num_back_buffers - 1] = handle_temp;
1039                 task_temp = This->tasks[0];
1040                 for (i = 1; i < This->num_back_buffers; i++) {
1041                     This->tasks[i-1] = This->tasks[i];
1042                 }
1043                 This->tasks[This->num_back_buffers - 1] = task_temp;
1044                 pending_presentation_temp = This->pending_presentation[0];
1045                 for (i = 1; i < This->num_back_buffers; i++) {
1046                     This->pending_presentation[i-1] = This->pending_presentation[i];
1047                 }
1048                 This->pending_presentation[This->num_back_buffers - 1] = pending_presentation_temp;
1049                 break;
1050
1051             case D3DSWAPEFFECT_COPY:
1052                 /* do nothing */
1053                 break;
1054         }
1055
1056         if (This->tasks[0])
1057             _mesa_threadpool_wait_for_task(This->pool, &(This->tasks[0]));
1058         assert(!*This->pending_presentation[0]);
1059
1060         ID3DPresent_WaitBufferReleased(This->present, This->present_handles[0]);
1061     }
1062
1063     This->base.device->context.changed.group |= NINE_STATE_FB;
1064
1065     return hr;
1066 }
1067
1068 HRESULT NINE_WINAPI
1069 NineSwapChain9_GetFrontBufferData( struct NineSwapChain9 *This,
1070                                    IDirect3DSurface9 *pDestSurface )
1071 {
1072     struct NineSurface9 *dest_surface = NineSurface9(pDestSurface);
1073     struct NineDevice9 *pDevice = This->base.device;
1074     unsigned int width, height;
1075     struct pipe_resource *temp_resource;
1076     struct NineSurface9 *temp_surface;
1077     D3DWindowBuffer *temp_handle;
1078     D3DSURFACE_DESC desc;
1079     HRESULT hr;
1080
1081     DBG("GetFrontBufferData: This=%p pDestSurface=%p\n",
1082         This, pDestSurface);
1083
1084     user_assert(dest_surface->base.pool == D3DPOOL_SYSTEMMEM, D3DERR_INVALIDCALL);
1085
1086     width = dest_surface->desc.Width;
1087     height = dest_surface->desc.Height;
1088
1089     /* Note: front window size and destination size are supposed
1090      * to match. However it's not very clear what should get taken in Windowed
1091      * mode. It may need a fix */
1092     create_present_buffer(This, width, height, &temp_resource, &temp_handle);
1093
1094     if (!temp_resource || !temp_handle) {
1095         return D3DERR_INVALIDCALL;
1096     }
1097
1098     desc.Type = D3DRTYPE_SURFACE;
1099     desc.Pool = D3DPOOL_DEFAULT;
1100     desc.MultiSampleType = D3DMULTISAMPLE_NONE;
1101     desc.MultiSampleQuality = 0;
1102     desc.Width = width;
1103     desc.Height = height;
1104     /* NineSurface9_CopyDefaultToMem needs same format. */
1105     desc.Format = dest_surface->desc.Format;
1106     desc.Usage = D3DUSAGE_RENDERTARGET;
1107     hr = NineSurface9_new(pDevice, NineUnknown(This), temp_resource, NULL, 0,
1108                           0, 0, &desc, &temp_surface);
1109     pipe_resource_reference(&temp_resource, NULL);
1110     if (FAILED(hr)) {
1111         DBG("Failed to create temp FrontBuffer surface.\n");
1112         return hr;
1113     }
1114
1115     ID3DPresent_FrontBufferCopy(This->present, temp_handle);
1116
1117     NineSurface9_CopyDefaultToMem(dest_surface, temp_surface);
1118
1119     ID3DPresent_DestroyD3DWindowBuffer(This->present, temp_handle);
1120     NineUnknown_Destroy(NineUnknown(temp_surface));
1121
1122     return D3D_OK;
1123 }
1124
1125 HRESULT NINE_WINAPI
1126 NineSwapChain9_GetBackBuffer( struct NineSwapChain9 *This,
1127                               UINT iBackBuffer,
1128                               D3DBACKBUFFER_TYPE Type,
1129                               IDirect3DSurface9 **ppBackBuffer )
1130 {
1131     DBG("GetBackBuffer: This=%p iBackBuffer=%d Type=%d ppBackBuffer=%p\n",
1132         This, iBackBuffer, Type, ppBackBuffer);
1133     (void)user_error(Type == D3DBACKBUFFER_TYPE_MONO);
1134     /* don't touch ppBackBuffer on error */
1135     user_assert(ppBackBuffer != NULL, D3DERR_INVALIDCALL);
1136     user_assert(iBackBuffer < This->params.BackBufferCount, D3DERR_INVALIDCALL);
1137
1138     NineUnknown_AddRef(NineUnknown(This->buffers[iBackBuffer]));
1139     *ppBackBuffer = (IDirect3DSurface9 *)This->buffers[iBackBuffer];
1140     return D3D_OK;
1141 }
1142
1143 HRESULT NINE_WINAPI
1144 NineSwapChain9_GetRasterStatus( struct NineSwapChain9 *This,
1145                                 D3DRASTER_STATUS *pRasterStatus )
1146 {
1147     DBG("GetRasterStatus: This=%p pRasterStatus=%p\n",
1148         This, pRasterStatus);
1149     user_assert(pRasterStatus != NULL, E_POINTER);
1150     return ID3DPresent_GetRasterStatus(This->present, pRasterStatus);
1151 }
1152
1153 HRESULT NINE_WINAPI
1154 NineSwapChain9_GetDisplayMode( struct NineSwapChain9 *This,
1155                                D3DDISPLAYMODE *pMode )
1156 {
1157     D3DDISPLAYMODEEX mode;
1158     D3DDISPLAYROTATION rot;
1159     HRESULT hr;
1160
1161     DBG("GetDisplayMode: This=%p pMode=%p\n",
1162         This, pMode);
1163     user_assert(pMode != NULL, E_POINTER);
1164
1165     hr = ID3DPresent_GetDisplayMode(This->present, &mode, &rot);
1166     if (SUCCEEDED(hr)) {
1167         pMode->Width = mode.Width;
1168         pMode->Height = mode.Height;
1169         pMode->RefreshRate = mode.RefreshRate;
1170         pMode->Format = mode.Format;
1171     }
1172     return hr;
1173 }
1174
1175 HRESULT NINE_WINAPI
1176 NineSwapChain9_GetPresentParameters( struct NineSwapChain9 *This,
1177                                      D3DPRESENT_PARAMETERS *pPresentationParameters )
1178 {
1179     DBG("GetPresentParameters: This=%p pPresentationParameters=%p\n",
1180         This, pPresentationParameters);
1181     user_assert(pPresentationParameters != NULL, E_POINTER);
1182     *pPresentationParameters = This->params;
1183     return D3D_OK;
1184 }
1185
1186 IDirect3DSwapChain9Vtbl NineSwapChain9_vtable = {
1187     (void *)NineUnknown_QueryInterface,
1188     (void *)NineUnknown_AddRef,
1189     (void *)NineUnknown_Release,
1190     (void *)NineSwapChain9_Present,
1191     (void *)NineSwapChain9_GetFrontBufferData,
1192     (void *)NineSwapChain9_GetBackBuffer,
1193     (void *)NineSwapChain9_GetRasterStatus,
1194     (void *)NineSwapChain9_GetDisplayMode,
1195     (void *)NineUnknown_GetDevice, /* actually part of SwapChain9 iface */
1196     (void *)NineSwapChain9_GetPresentParameters
1197 };
1198
1199 static const GUID *NineSwapChain9_IIDs[] = {
1200     &IID_IDirect3DSwapChain9,
1201     &IID_IUnknown,
1202     NULL
1203 };
1204
1205 HRESULT
1206 NineSwapChain9_new( struct NineDevice9 *pDevice,
1207                     BOOL implicit,
1208                     ID3DPresent *pPresent,
1209                     D3DPRESENT_PARAMETERS *pPresentationParameters,
1210                     struct d3dadapter9_context *pCTX,
1211                     HWND hFocusWindow,
1212                     struct NineSwapChain9 **ppOut )
1213 {
1214     NINE_DEVICE_CHILD_NEW(SwapChain9, ppOut, pDevice, /* args */
1215                           implicit, pPresent, pPresentationParameters,
1216                           pCTX, hFocusWindow, NULL);
1217 }
1218
1219 BOOL
1220 NineSwapChain9_GetOccluded( struct NineSwapChain9 *This )
1221 {
1222     if (This->base.device->minor_version_num > 0) {
1223         return ID3DPresent_GetWindowOccluded(This->present);
1224     }
1225
1226     return FALSE;
1227 }
1228
1229 BOOL
1230 NineSwapChain9_ResolutionMismatch( struct NineSwapChain9 *This )
1231 {
1232     if (This->base.device->minor_version_num > 1) {
1233         return ID3DPresent_ResolutionMismatch(This->present);
1234     }
1235
1236     return FALSE;
1237 }
1238
1239 HANDLE
1240 NineSwapChain9_CreateThread( struct NineSwapChain9 *This,
1241                                  void *pFuncAddress,
1242                                  void *pParam )
1243 {
1244     if (This->base.device->minor_version_num > 1) {
1245         return ID3DPresent_CreateThread(This->present, pFuncAddress, pParam);
1246     }
1247
1248     return NULL;
1249 }
1250
1251 void
1252 NineSwapChain9_WaitForThread( struct NineSwapChain9 *This,
1253                                   HANDLE thread )
1254 {
1255     if (This->base.device->minor_version_num > 1) {
1256         (void) ID3DPresent_WaitForThread(This->present, thread);
1257     }
1258 }
1259
1260 static int
1261 NineSwapChain9_GetBackBufferCountForParams( struct NineSwapChain9 *This,
1262                                             D3DPRESENT_PARAMETERS *pParams )
1263 {
1264     int count = pParams->BackBufferCount;
1265
1266     /* When we have flip behaviour, d3d9 expects we get back the screen buffer when we flip.
1267      * Here we don't get back the initial content of the screen. To emulate the behaviour
1268      * we allocate an additional buffer */
1269     if (pParams->SwapEffect != D3DSWAPEFFECT_COPY)
1270         count++;
1271     /* With DISCARD, as there is no guarantee about the buffer contents, we can use
1272      * an arbitrary number of buffers */
1273     if (pParams->SwapEffect == D3DSWAPEFFECT_DISCARD) {
1274         /* thread_submit's can have maximum count or This->actx->throttling_value + 1
1275          * frames in flight being rendered and not shown.
1276          * Do not let count decrease that number */
1277         if (This->actx->thread_submit && count < This->desired_fences)
1278             count = This->desired_fences;
1279         /* When we enable AllowDISCARDDelayedRelease, we must ensure
1280          * to have at least 4 buffers to meet INTERVAL_IMMEDIATE,
1281          * since the display server/compositor can hold 3 buffers
1282          * without releasing them:
1283          * . Buffer on screen.
1284          * . Buffer scheduled kernel side to be next on screen.
1285          * . Last buffer sent. */
1286         if (This->base.device->minor_version_num > 2 &&
1287             This->actx->discard_delayed_release &&
1288             pParams->PresentationInterval == D3DPRESENT_INTERVAL_IMMEDIATE) {
1289             if (This->actx->thread_submit && count < 4)
1290                 count = 4;
1291             /* When thread_submit is not used, 5 buffers are actually needed,
1292              * because in case a pageflip is missed because rendering wasn't finished,
1293              * the Xserver will hold 4 buffers. */
1294             else if (!This->actx->thread_submit && count < 5)
1295                 count = 5;
1296         }
1297     }
1298
1299     return count;
1300 }