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