src/gallium/frontends/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 "frontend/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 = nine_resource_create_with_retry(pDevice, 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 = nine_resource_create_with_retry(pDevice, 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 = nine_resource_create_with_retry(pDevice, 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 frontend */
 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 = nine_resource_create_with_retry(This->base.device, 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     RECT source_rect;
 728     RECT dest_rect;
 729
 730     DBG("present: This=%p pSourceRect=%p pDestRect=%p "
 731         "pDirtyRegion=%p hDestWindowOverride=%p"
 732         "dwFlags=%d resource=%p\n",
 733         This, pSourceRect, pDestRect, pDirtyRegion,
 734         hDestWindowOverride, (int)dwFlags, This->buffers[0]->base.resource);
 735
 736     if (pSourceRect) {
 737         DBG("pSourceRect = (%u..%u)x(%u..%u)\n",
 738             pSourceRect->left, pSourceRect->right,
 739             pSourceRect->top, pSourceRect->bottom);
 740         source_rect = *pSourceRect;
 741     }
 742     if (pDestRect) {
 743         DBG("pDestRect = (%u..%u)x(%u..%u)\n",
 744             pDestRect->left, pDestRect->right,
 745             pDestRect->top, pDestRect->bottom);
 746         dest_rect = *pDestRect;
 747     }
 748
 749     /* TODO: in the case the source and destination rect have different size:
 750      * We need to allocate a new buffer, and do a blit to it to resize.
 751      * We can't use the present_buffer for that since when we created it,
 752      * we couldn't guess which size would have been needed.
 753      * If pDestRect or pSourceRect is null, we have to check the sizes
 754      * from the source size, and the destination window size.
 755      * In this case, either resize rngdata, or pass NULL instead
 756      */
 757     /* Note: This->buffers[0]->level should always be 0 */
 758
 759     if (This->rendering_done)
 760         goto bypass_rendering;
 761
 762     resource = This->buffers[0]->base.resource;
 763
 764     if (This->params.SwapEffect == D3DSWAPEFFECT_DISCARD)
 765         handle_draw_cursor_and_hud(This, resource);
 766
 767     hr = ID3DPresent_GetWindowInfo(This->present, hDestWindowOverride, &target_width, &target_height, &target_depth);
 768     (void)target_depth;
 769
 770     /* Can happen with old Wine (presentation can still succeed),
 771      * or at window destruction.
 772      * Also disable for very old wine as D3DWindowBuffer_release
 773      * cannot do the DestroyD3DWindowBuffer workaround. */
 774     if (FAILED(hr) || target_width == 0 || target_height == 0 ||
 775         This->base.device->minor_version_num <= 2) {
 776         target_width = resource->width0;
 777         target_height = resource->height0;
 778     }
 779
 780     if (pDestRect) {
 781         dest_rect.top = MAX2(0, dest_rect.top);
 782         dest_rect.left = MAX2(0, dest_rect.left);
 783         dest_rect.bottom = MIN2(target_height, dest_rect.bottom);
 784         dest_rect.right = MIN2(target_width, dest_rect.right);
 785         target_height = dest_rect.bottom - dest_rect.top;
 786         target_width = dest_rect.right - dest_rect.left;
 787     }
 788
 789     /* Switch to using presentation buffers on window resize.
 790      * Note: Most apps should resize the d3d back buffers when
 791      * a window resize is detected, which will result in a call to
 792      * NineSwapChain9_Resize. Thus everything will get released,
 793      * and it will switch back to not using separate presentation
 794      * buffers. */
 795     if (!This->present_buffers[0] &&
 796         (target_width != resource->width0 || target_height != resource->height0)) {
 797         BOOL failure = false;
 798         struct pipe_resource *new_resource[This->num_back_buffers];
 799         D3DWindowBuffer *new_handles[This->num_back_buffers];
 800         for (i = 0; i < This->num_back_buffers; i++) {
 801             /* Note: if (!new_handles[i]), new_resource[i]
 802              * gets released and contains NULL */
 803             create_present_buffer(This, target_width, target_height, &new_resource[i], &new_handles[i]);
 804             if (!new_handles[i])
 805                 failure = true;
 806         }
 807         if (failure) {
 808             for (i = 0; i < This->num_back_buffers; i++) {
 809                 if (new_resource[i])
 810                     pipe_resource_reference(&new_resource[i], NULL);
 811                 if (new_handles[i])
 812                     D3DWindowBuffer_release(This, new_handles[i]);
 813             }
 814         } else {
 815             for (i = 0; i < This->num_back_buffers; i++) {
 816                 D3DWindowBuffer_release(This, This->present_handles[i]);
 817                 This->present_handles[i] = new_handles[i];
 818                 pipe_resource_reference(&This->present_buffers[i], new_resource[i]);
 819                 pipe_resource_reference(&new_resource[i], NULL);
 820             }
 821         }
 822     }
 823
 824     pipe = NineDevice9_GetPipe(This->base.device);
 825
 826     if (This->present_buffers[0]) {
 827         memset(&blit, 0, sizeof(blit));
 828         blit.src.resource = resource;
 829         blit.src.level = 0;
 830         blit.src.format = resource->format;
 831         blit.src.box.z = 0;
 832         blit.src.box.depth = 1;
 833         blit.src.box.x = 0;
 834         blit.src.box.y = 0;
 835         blit.src.box.width = resource->width0;
 836         blit.src.box.height = resource->height0;
 837
 838         /* Reallocate a new presentation buffer if the target window
 839          * size has changed */
 840         if (target_width != This->present_buffers[0]->width0 ||
 841             target_height != This->present_buffers[0]->height0) {
 842             struct pipe_resource *new_resource;
 843             D3DWindowBuffer *new_handle;
 844
 845             create_present_buffer(This, target_width, target_height, &new_resource, &new_handle);
 846             /* Switch to the new buffer */
 847             if (new_handle) {
 848                 D3DWindowBuffer_release(This, This->present_handles[0]);
 849                 This->present_handles[0] = new_handle;
 850                 pipe_resource_reference(&This->present_buffers[0], new_resource);
 851                 pipe_resource_reference(&new_resource, NULL);
 852             }
 853         }
 854
 855         resource = This->present_buffers[0];
 856
 857         blit.dst.resource = resource;
 858         blit.dst.level = 0;
 859         blit.dst.format = resource->format;
 860         blit.dst.box.z = 0;
 861         blit.dst.box.depth = 1;
 862         blit.dst.box.x = 0;
 863         blit.dst.box.y = 0;
 864         blit.dst.box.width = resource->width0;
 865         blit.dst.box.height = resource->height0;
 866
 867         blit.mask = PIPE_MASK_RGBA;
 868         blit.filter = (blit.dst.box.width == blit.src.box.width &&
 869                        blit.dst.box.height == blit.src.box.height) ?
 870                           PIPE_TEX_FILTER_NEAREST : PIPE_TEX_FILTER_LINEAR;
 871         blit.scissor_enable = FALSE;
 872         blit.alpha_blend = FALSE;
 873
 874         pipe->blit(pipe, &blit);
 875     }
 876
 877     /* The resource we present has to resolve fast clears
 878      * if needed (and other things) */
 879     pipe->flush_resource(pipe, resource);
 880
 881     if (This->params.SwapEffect != D3DSWAPEFFECT_DISCARD)
 882         handle_draw_cursor_and_hud(This, resource);
 883
 884     fence = NULL;
 885     pipe->flush(pipe, &fence, PIPE_FLUSH_END_OF_FRAME);
 886
 887     /* Present now for thread_submit, because we have the fence.
 888      * It's possible we return WASSTILLDRAWING and still Present,
 889      * but it should be fine. */
 890     if (This->enable_threadpool)
 891         pend_present(This, fence, hDestWindowOverride);
 892     if (fence) {
 893         swap_fences_push_back(This, fence);
 894         This->screen->fence_reference(This->screen, &fence, NULL);
 895     }
 896
 897     This->rendering_done = TRUE;
 898 bypass_rendering:
 899
 900     if (dwFlags & D3DPRESENT_DONOTWAIT) {
 901         UNTESTED(2);
 902         BOOL still_draw = FALSE;
 903         fence = swap_fences_see_front(This);
 904         if (fence) {
 905             still_draw = !This->screen->fence_finish(This->screen, NULL, fence, 0);
 906             This->screen->fence_reference(This->screen, &fence, NULL);
 907         }
 908         if (still_draw)
 909             return D3DERR_WASSTILLDRAWING;
 910     }
 911
 912     /* Throttle rendering if needed */
 913     fence = swap_fences_pop_front(This);
 914     if (fence) {
 915         (void) This->screen->fence_finish(This->screen, NULL, fence, PIPE_TIMEOUT_INFINITE);
 916         This->screen->fence_reference(This->screen, &fence, NULL);
 917     }
 918
 919     This->rendering_done = FALSE;
 920
 921     if (!This->enable_threadpool) {
 922         This->tasks[0]=NULL;
 923
 924         hr = ID3DPresent_PresentBuffer(This->present, This->present_handles[0], hDestWindowOverride, pSourceRect, pDestRect ? &dest_rect : NULL, pDirtyRegion, dwFlags);
 925
 926         if (FAILED(hr)) { UNTESTED(3);return hr; }
 927     }
 928
 929     return D3D_OK;
 930 }
 931
 932 HRESULT NINE_WINAPI
 933 NineSwapChain9_Present( struct NineSwapChain9 *This,
 934                         const RECT *pSourceRect,
 935                         const RECT *pDestRect,
 936                         HWND hDestWindowOverride,
 937                         const RGNDATA *pDirtyRegion,
 938                         DWORD dwFlags )
 939 {
 940     struct pipe_resource *res = NULL;
 941     D3DWindowBuffer *handle_temp;
 942     struct threadpool_task *task_temp;
 943     BOOL *pending_presentation_temp;
 944     int i;
 945     HRESULT hr;
 946
 947     DBG("This=%p pSourceRect=%p pDestRect=%p hDestWindowOverride=%p "
 948         "pDirtyRegion=%p dwFlags=%d\n",
 949         This, pSourceRect, pDestRect, hDestWindowOverride,
 950         pDirtyRegion,dwFlags);
 951
 952     if (This->base.device->ex) {
 953         if (NineSwapChain9_GetOccluded(This)) {
 954             DBG("Present is occluded. Returning S_PRESENT_OCCLUDED.\n");
 955             return S_PRESENT_OCCLUDED;
 956         }
 957     } else {
 958         if (NineSwapChain9_GetOccluded(This) ||
 959             NineSwapChain9_ResolutionMismatch(This)) {
 960             This->base.device->device_needs_reset = TRUE;
 961         }
 962         if (This->base.device->device_needs_reset) {
 963             DBG("Device is lost. Returning D3DERR_DEVICELOST.\n");
 964             return D3DERR_DEVICELOST;
 965         }
 966     }
 967
 968     nine_csmt_process(This->base.device);
 969
 970     hr = present(This, pSourceRect, pDestRect,
 971                  hDestWindowOverride, pDirtyRegion, dwFlags);
 972     if (hr == D3DERR_WASSTILLDRAWING)
 973         return hr;
 974
 975     if (This->base.device->minor_version_num > 2 &&
 976         This->actx->discard_delayed_release &&
 977         This->params.SwapEffect == D3DSWAPEFFECT_DISCARD &&
 978         This->params.PresentationInterval == D3DPRESENT_INTERVAL_IMMEDIATE) {
 979         int next_buffer = -1;
 980
 981         while (next_buffer == -1) {
 982             /* Find a free backbuffer */
 983             for (i = 1; i < This->num_back_buffers; i++) {
 984                 if (!p_atomic_read(This->pending_presentation[i]) &&
 985                     ID3DPresent_IsBufferReleased(This->present, This->present_handles[i])) {
 986                     DBG("Found buffer released: %d\n", i);
 987                     next_buffer = i;
 988                     break;
 989                 }
 990             }
 991             if (next_buffer == -1) {
 992                 DBG("Found no buffer released. Waiting for event\n");
 993                 ID3DPresent_WaitBufferReleaseEvent(This->present);
 994             }
 995         }
 996
 997         /* Free the task (we already checked it is finished) */
 998         if (This->tasks[next_buffer])
 999             _mesa_threadpool_wait_for_task(This->pool, &(This->tasks[next_buffer]));
1000         assert(!*This->pending_presentation[next_buffer] && !This->tasks[next_buffer]);
1001         This->tasks[next_buffer] = This->tasks[0];
1002         This->tasks[0] = NULL;
1003         pending_presentation_temp = This->pending_presentation[next_buffer];
1004         This->pending_presentation[next_buffer] = This->pending_presentation[0];
1005         This->pending_presentation[0] = pending_presentation_temp;
1006
1007         /* Switch with the released buffer */
1008         pipe_resource_reference(&res, This->buffers[0]->base.resource);
1009         NineSurface9_SetResourceResize(
1010             This->buffers[0], This->buffers[next_buffer]->base.resource);
1011         NineSurface9_SetResourceResize(
1012             This->buffers[next_buffer], res);
1013         pipe_resource_reference(&res, NULL);
1014
1015         if (This->present_buffers[0]) {
1016             pipe_resource_reference(&res, This->present_buffers[0]);
1017             pipe_resource_reference(&This->present_buffers[0], This->present_buffers[next_buffer]);
1018             pipe_resource_reference(&This->present_buffers[next_buffer], res);
1019             pipe_resource_reference(&res, NULL);
1020         }
1021
1022         handle_temp = This->present_handles[0];
1023         This->present_handles[0] = This->present_handles[next_buffer];
1024         This->present_handles[next_buffer] = handle_temp;
1025     } else {
1026         switch (This->params.SwapEffect) {
1027             case D3DSWAPEFFECT_OVERLAY: /* Not implemented, fallback to FLIP */
1028             case D3DSWAPEFFECT_FLIPEX: /* Allows optimizations over FLIP for windowed mode. */
1029             case D3DSWAPEFFECT_DISCARD: /* Allows optimizations over FLIP */
1030             case D3DSWAPEFFECT_FLIP:
1031                 /* rotate the queue */
1032                 pipe_resource_reference(&res, This->buffers[0]->base.resource);
1033                 for (i = 1; i < This->num_back_buffers; i++) {
1034                     NineSurface9_SetResourceResize(This->buffers[i - 1],
1035                                                    This->buffers[i]->base.resource);
1036                 }
1037                 NineSurface9_SetResourceResize(
1038                     This->buffers[This->num_back_buffers - 1], res);
1039                 pipe_resource_reference(&res, NULL);
1040
1041                 if (This->present_buffers[0]) {
1042                     pipe_resource_reference(&res, This->present_buffers[0]);
1043                     for (i = 1; i < This->num_back_buffers; i++)
1044                         pipe_resource_reference(&(This->present_buffers[i-1]), This->present_buffers[i]);
1045                     pipe_resource_reference(&(This->present_buffers[This->num_back_buffers - 1]), res);
1046                     pipe_resource_reference(&res, NULL);
1047                 }
1048
1049                 handle_temp = This->present_handles[0];
1050                 for (i = 1; i < This->num_back_buffers; i++) {
1051                     This->present_handles[i-1] = This->present_handles[i];
1052                 }
1053                 This->present_handles[This->num_back_buffers - 1] = handle_temp;
1054                 task_temp = This->tasks[0];
1055                 for (i = 1; i < This->num_back_buffers; i++) {
1056                     This->tasks[i-1] = This->tasks[i];
1057                 }
1058                 This->tasks[This->num_back_buffers - 1] = task_temp;
1059                 pending_presentation_temp = This->pending_presentation[0];
1060                 for (i = 1; i < This->num_back_buffers; i++) {
1061                     This->pending_presentation[i-1] = This->pending_presentation[i];
1062                 }
1063                 This->pending_presentation[This->num_back_buffers - 1] = pending_presentation_temp;
1064                 break;
1065
1066             case D3DSWAPEFFECT_COPY:
1067                 /* do nothing */
1068                 break;
1069         }
1070
1071         if (This->tasks[0])
1072             _mesa_threadpool_wait_for_task(This->pool, &(This->tasks[0]));
1073         assert(!*This->pending_presentation[0]);
1074
1075         ID3DPresent_WaitBufferReleased(This->present, This->present_handles[0]);
1076     }
1077
1078     This->base.device->context.changed.group |= NINE_STATE_FB;
1079
1080     return hr;
1081 }
1082
1083 HRESULT NINE_WINAPI
1084 NineSwapChain9_GetFrontBufferData( struct NineSwapChain9 *This,
1085                                    IDirect3DSurface9 *pDestSurface )
1086 {
1087     struct NineSurface9 *dest_surface = NineSurface9(pDestSurface);
1088     struct NineDevice9 *pDevice = This->base.device;
1089     unsigned int width, height;
1090     struct pipe_resource *temp_resource;
1091     struct NineSurface9 *temp_surface;
1092     D3DWindowBuffer *temp_handle;
1093     D3DSURFACE_DESC desc;
1094     HRESULT hr;
1095
1096     DBG("GetFrontBufferData: This=%p pDestSurface=%p\n",
1097         This, pDestSurface);
1098
1099     user_assert(dest_surface->base.pool == D3DPOOL_SYSTEMMEM, D3DERR_INVALIDCALL);
1100
1101     width = dest_surface->desc.Width;
1102     height = dest_surface->desc.Height;
1103
1104     /* Note: front window size and destination size are supposed
1105      * to match. However it's not very clear what should get taken in Windowed
1106      * mode. It may need a fix */
1107     create_present_buffer(This, width, height, &temp_resource, &temp_handle);
1108
1109     if (!temp_resource || !temp_handle) {
1110         return D3DERR_INVALIDCALL;
1111     }
1112
1113     desc.Type = D3DRTYPE_SURFACE;
1114     desc.Pool = D3DPOOL_DEFAULT;
1115     desc.MultiSampleType = D3DMULTISAMPLE_NONE;
1116     desc.MultiSampleQuality = 0;
1117     desc.Width = width;
1118     desc.Height = height;
1119     /* NineSurface9_CopyDefaultToMem needs same format. */
1120     desc.Format = dest_surface->desc.Format;
1121     desc.Usage = D3DUSAGE_RENDERTARGET;
1122     hr = NineSurface9_new(pDevice, NineUnknown(This), temp_resource, NULL, 0,
1123                           0, 0, &desc, &temp_surface);
1124     pipe_resource_reference(&temp_resource, NULL);
1125     if (FAILED(hr)) {
1126         DBG("Failed to create temp FrontBuffer surface.\n");
1127         return hr;
1128     }
1129
1130     ID3DPresent_FrontBufferCopy(This->present, temp_handle);
1131
1132     NineSurface9_CopyDefaultToMem(dest_surface, temp_surface);
1133
1134     ID3DPresent_DestroyD3DWindowBuffer(This->present, temp_handle);
1135     NineUnknown_Destroy(NineUnknown(temp_surface));
1136
1137     return D3D_OK;
1138 }
1139
1140 HRESULT NINE_WINAPI
1141 NineSwapChain9_GetBackBuffer( struct NineSwapChain9 *This,
1142                               UINT iBackBuffer,
1143                               D3DBACKBUFFER_TYPE Type,
1144                               IDirect3DSurface9 **ppBackBuffer )
1145 {
1146     DBG("GetBackBuffer: This=%p iBackBuffer=%d Type=%d ppBackBuffer=%p\n",
1147         This, iBackBuffer, Type, ppBackBuffer);
1148     (void)user_error(Type == D3DBACKBUFFER_TYPE_MONO);
1149     /* don't touch ppBackBuffer on error */
1150     user_assert(ppBackBuffer != NULL, D3DERR_INVALIDCALL);
1151     user_assert(iBackBuffer < This->params.BackBufferCount, D3DERR_INVALIDCALL);
1152
1153     NineUnknown_AddRef(NineUnknown(This->buffers[iBackBuffer]));
1154     *ppBackBuffer = (IDirect3DSurface9 *)This->buffers[iBackBuffer];
1155     return D3D_OK;
1156 }
1157
1158 HRESULT NINE_WINAPI
1159 NineSwapChain9_GetRasterStatus( struct NineSwapChain9 *This,
1160                                 D3DRASTER_STATUS *pRasterStatus )
1161 {
1162     DBG("GetRasterStatus: This=%p pRasterStatus=%p\n",
1163         This, pRasterStatus);
1164     user_assert(pRasterStatus != NULL, E_POINTER);
1165     return ID3DPresent_GetRasterStatus(This->present, pRasterStatus);
1166 }
1167
1168 HRESULT NINE_WINAPI
1169 NineSwapChain9_GetDisplayMode( struct NineSwapChain9 *This,
1170                                D3DDISPLAYMODE *pMode )
1171 {
1172     D3DDISPLAYMODEEX mode;
1173     D3DDISPLAYROTATION rot;
1174     HRESULT hr;
1175
1176     DBG("GetDisplayMode: This=%p pMode=%p\n",
1177         This, pMode);
1178     user_assert(pMode != NULL, E_POINTER);
1179
1180     hr = ID3DPresent_GetDisplayMode(This->present, &mode, &rot);
1181     if (SUCCEEDED(hr)) {
1182         pMode->Width = mode.Width;
1183         pMode->Height = mode.Height;
1184         pMode->RefreshRate = mode.RefreshRate;
1185         pMode->Format = mode.Format;
1186     }
1187     return hr;
1188 }
1189
1190 HRESULT NINE_WINAPI
1191 NineSwapChain9_GetPresentParameters( struct NineSwapChain9 *This,
1192                                      D3DPRESENT_PARAMETERS *pPresentationParameters )
1193 {
1194     DBG("GetPresentParameters: This=%p pPresentationParameters=%p\n",
1195         This, pPresentationParameters);
1196     user_assert(pPresentationParameters != NULL, E_POINTER);
1197     *pPresentationParameters = This->params;
1198     return D3D_OK;
1199 }
1200
1201 IDirect3DSwapChain9Vtbl NineSwapChain9_vtable = {
1202     (void *)NineUnknown_QueryInterface,
1203     (void *)NineUnknown_AddRef,
1204     (void *)NineUnknown_Release,
1205     (void *)NineSwapChain9_Present,
1206     (void *)NineSwapChain9_GetFrontBufferData,
1207     (void *)NineSwapChain9_GetBackBuffer,
1208     (void *)NineSwapChain9_GetRasterStatus,
1209     (void *)NineSwapChain9_GetDisplayMode,
1210     (void *)NineUnknown_GetDevice, /* actually part of SwapChain9 iface */
1211     (void *)NineSwapChain9_GetPresentParameters
1212 };
1213
1214 static const GUID *NineSwapChain9_IIDs[] = {
1215     &IID_IDirect3DSwapChain9,
1216     &IID_IUnknown,
1217     NULL
1218 };
1219
1220 HRESULT
1221 NineSwapChain9_new( struct NineDevice9 *pDevice,
1222                     BOOL implicit,
1223                     ID3DPresent *pPresent,
1224                     D3DPRESENT_PARAMETERS *pPresentationParameters,
1225                     struct d3dadapter9_context *pCTX,
1226                     HWND hFocusWindow,
1227                     struct NineSwapChain9 **ppOut )
1228 {
1229     NINE_DEVICE_CHILD_NEW(SwapChain9, ppOut, pDevice, /* args */
1230                           implicit, pPresent, pPresentationParameters,
1231                           pCTX, hFocusWindow, NULL);
1232 }
1233
1234 BOOL
1235 NineSwapChain9_GetOccluded( struct NineSwapChain9 *This )
1236 {
1237     if (This->base.device->minor_version_num > 0) {
1238         return ID3DPresent_GetWindowOccluded(This->present);
1239     }
1240
1241     return FALSE;
1242 }
1243
1244 BOOL
1245 NineSwapChain9_ResolutionMismatch( struct NineSwapChain9 *This )
1246 {
1247     if (This->base.device->minor_version_num > 1) {
1248         return ID3DPresent_ResolutionMismatch(This->present);
1249     }
1250
1251     return FALSE;
1252 }
1253
1254 HANDLE
1255 NineSwapChain9_CreateThread( struct NineSwapChain9 *This,
1256                                  void *pFuncAddress,
1257                                  void *pParam )
1258 {
1259     if (This->base.device->minor_version_num > 1) {
1260         return ID3DPresent_CreateThread(This->present, pFuncAddress, pParam);
1261     }
1262
1263     return NULL;
1264 }
1265
1266 void
1267 NineSwapChain9_WaitForThread( struct NineSwapChain9 *This,
1268                                   HANDLE thread )
1269 {
1270     if (This->base.device->minor_version_num > 1) {
1271         (void) ID3DPresent_WaitForThread(This->present, thread);
1272     }
1273 }
1274
1275 static int
1276 NineSwapChain9_GetBackBufferCountForParams( struct NineSwapChain9 *This,
1277                                             D3DPRESENT_PARAMETERS *pParams )
1278 {
1279     int count = pParams->BackBufferCount;
1280
1281     /* When we have flip behaviour, d3d9 expects we get back the screen buffer when we flip.
1282      * Here we don't get back the initial content of the screen. To emulate the behaviour
1283      * we allocate an additional buffer */
1284     if (pParams->SwapEffect != D3DSWAPEFFECT_COPY)
1285         count++;
1286     /* With DISCARD, as there is no guarantee about the buffer contents, we can use
1287      * an arbitrary number of buffers */
1288     if (pParams->SwapEffect == D3DSWAPEFFECT_DISCARD) {
1289         /* thread_submit's can have maximum count or This->actx->throttling_value + 1
1290          * frames in flight being rendered and not shown.
1291          * Do not let count decrease that number */
1292         if (This->actx->thread_submit && count < This->desired_fences)
1293             count = This->desired_fences;
1294         /* When we enable AllowDISCARDDelayedRelease, we must ensure
1295          * to have at least 4 buffers to meet INTERVAL_IMMEDIATE,
1296          * since the display server/compositor can hold 3 buffers
1297          * without releasing them:
1298          * . Buffer on screen.
1299          * . Buffer scheduled kernel side to be next on screen.
1300          * . Last buffer sent. */
1301         if (This->base.device->minor_version_num > 2 &&
1302             This->actx->discard_delayed_release &&
1303             pParams->PresentationInterval == D3DPRESENT_INTERVAL_IMMEDIATE) {
1304             if (This->actx->thread_submit && count < 4)
1305                 count = 4;
1306             /* When thread_submit is not used, 5 buffers are actually needed,
1307              * because in case a pageflip is missed because rendering wasn't finished,
1308              * the Xserver will hold 4 buffers. */
1309             else if (!This->actx->thread_submit && count < 5)
1310                 count = 5;
1311         }
1312     }
1313
1314     return count;
1315 }