| /* |
| * 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/mtl/GrMtlSemaphore.h" |
| |
| #include "src/gpu/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, *)) { |
| 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, *)) { |
| 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, *)) { |
| GrMTLHandle handle = (__bridge_retained GrMTLHandle)(fEvent->mtlEvent()); |
| backendSemaphore.initMetal(handle, fValue); |
| } |
| return backendSemaphore; |
| } |
| |
| GR_NORETAIN_END |