diff options
Diffstat (limited to 'src/uxa/intel_sync.c')
| -rw-r--r-- | src/uxa/intel_sync.c | 111 |
1 files changed, 111 insertions, 0 deletions
diff --git a/src/uxa/intel_sync.c b/src/uxa/intel_sync.c new file mode 100644 index 00000000..cd73a1b5 --- /dev/null +++ b/src/uxa/intel_sync.c @@ -0,0 +1,111 @@ +/* + * Copyright © 2013-2014 Intel Corporation + * + * Permission to use, copy, modify, distribute, and sell this software and its + * documentation for any purpose is hereby granted without fee, provided that + * the above copyright notice appear in all copies and that both that copyright + * notice and this permission notice appear in supporting documentation, and + * that the name of the copyright holders not be used in advertising or + * publicity pertaining to distribution of the software without specific, + * written prior permission. The copyright holders make no representations + * about the suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, + * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO + * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR + * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, + * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER + * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +#include "intel.h" +#include "misyncshm.h" +#include "misyncstr.h" + +/* + * This whole file exists to wrap a sync fence trigger operation + * so that we can flush the batch buffer to provide serialization + * between the server and the shm fence client + */ + +static DevPrivateKeyRec intel_sync_fence_private_key; + +typedef struct _intel_sync_fence_private { + SyncFenceSetTriggeredFunc set_triggered; +} intel_sync_fence_private; + +#define SYNC_FENCE_PRIV(pFence) \ + (intel_sync_fence_private *) dixLookupPrivate(&pFence->devPrivates, &intel_sync_fence_private_key) + +static void +intel_sync_fence_set_triggered (SyncFence *fence) +{ + ScreenPtr screen = fence->pScreen; + ScrnInfoPtr scrn = xf86ScreenToScrn(screen); + intel_screen_private *intel = intel_get_screen_private(scrn); + intel_sync_fence_private *private = SYNC_FENCE_PRIV(fence); + + /* Flush pending rendering operations */ + if (intel->flush_rendering) + intel->flush_rendering(intel); + + fence->funcs.SetTriggered = private->set_triggered; + fence->funcs.SetTriggered(fence); + private->set_triggered = fence->funcs.SetTriggered; + fence->funcs.SetTriggered = intel_sync_fence_set_triggered; +} + +static void +intel_sync_create_fence(ScreenPtr screen, + SyncFence *fence, + Bool initially_triggered) +{ + ScrnInfoPtr scrn = xf86ScreenToScrn(screen); + intel_screen_private *intel = intel_get_screen_private(scrn); + SyncScreenFuncsPtr screen_funcs = miSyncGetScreenFuncs(screen); + intel_sync_fence_private *private = SYNC_FENCE_PRIV(fence); + + screen_funcs->CreateFence = intel->save_sync_screen_funcs.CreateFence; + screen_funcs->CreateFence(screen, fence, initially_triggered); + intel->save_sync_screen_funcs.CreateFence = screen_funcs->CreateFence; + screen_funcs->CreateFence = intel_sync_create_fence; + + private->set_triggered = fence->funcs.SetTriggered; + fence->funcs.SetTriggered = intel_sync_fence_set_triggered; +} + +Bool +intel_sync_init(ScreenPtr screen) +{ + ScrnInfoPtr scrn = xf86ScreenToScrn(screen); + intel_screen_private *intel = intel_get_screen_private(scrn); + SyncScreenFuncsPtr screen_funcs; + + if (!miSyncShmScreenInit(screen)) + return FALSE; + + if (!dixPrivateKeyRegistered(&intel_sync_fence_private_key)) { + if (!dixRegisterPrivateKey(&intel_sync_fence_private_key, + PRIVATE_SYNC_FENCE, + sizeof (intel_sync_fence_private))) + return FALSE; + } + + screen_funcs = miSyncGetScreenFuncs(screen); + intel->save_sync_screen_funcs.CreateFence = screen_funcs->CreateFence; + screen_funcs->CreateFence = intel_sync_create_fence; + return TRUE; +} + +void +intel_sync_close(ScreenPtr screen) +{ + ScrnInfoPtr scrn = xf86ScreenToScrn(screen); + intel_screen_private *intel = intel_get_screen_private(scrn); + SyncScreenFuncsPtr screen_funcs = miSyncGetScreenFuncs(screen); + + if (screen_funcs) + screen_funcs->CreateFence = intel->save_sync_screen_funcs.CreateFence; +} |