blob: 733f41371e4812399b4093d1adfa6a7857d0682e [file] [log] [blame]
/*
* Copyright 2019 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "src/gpu/ganesh/mtl/GrMtlSemaphore.h"
#include "include/gpu/ganesh/mtl/GrMtlBackendSemaphore.h"
#include "src/gpu/ganesh/mtl/GrMtlGpu.h"
#if !__has_feature(objc_arc)
#error This file must be compiled with Arc. Use -fobjc-arc flag
#endif
GR_NORETAIN_BEGIN
sk_sp<GrMtlEvent> GrMtlEvent::Make(GrMtlGpu* gpu) {
if (@available(macOS 10.14, iOS 12.0, tvOS 12.0, *)) {
id<MTLEvent> event = [gpu->device() newEvent];
return sk_sp<GrMtlEvent>(new GrMtlEvent(event));
} else {
return nullptr;
}
}
sk_sp<GrMtlEvent> GrMtlEvent::MakeWrapped(GrMTLHandle event) {
// The GrMtlEvent will have strong ownership at this point.
// The GrMTLHandle will subsequently only have weak ownership.
if (@available(macOS 10.14, iOS 12.0, tvOS 12.0, *)) {
id<MTLEvent> mtlEvent = (__bridge_transfer id<MTLEvent>)event;
return sk_sp<GrMtlEvent>(new GrMtlEvent(mtlEvent));
} else {
return nullptr;
}
}
GrBackendSemaphore GrMtlSemaphore::backendSemaphore() const {
GrBackendSemaphore backendSemaphore;
// The GrMtlSemaphore and the GrBackendSemaphore will have strong ownership at this point.
// Whoever uses the GrBackendSemaphore will subsquently steal this ref (see MakeWrapped, above).
if (@available(macOS 10.14, iOS 12.0, tvOS 12.0, *)) {
GrMTLHandle handle = (__bridge_retained GrMTLHandle)(fEvent->mtlEvent());
backendSemaphore = GrBackendSemaphores::MakeMtl(handle, fValue);
}
return backendSemaphore;
}
GR_NORETAIN_END