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* Copyright 2017 Google Inc.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
#ifndef GrSemaphore_DEFINED
#define GrSemaphore_DEFINED
#include "GrBackendSemaphore.h"
#include "GrGpuResource.h"
* Represents a semaphore-like GPU synchronization object. This is a slightly odd fit for
* GrGpuResource because we don't care about budgeting, recycling, or read/write references for
* these. However, making it a GrGpuResource makes it simpler to handle releasing/abandoning these
* along with other resources. If more cases like this arise we could consider moving some of the
* unused functionality off of GrGpuResource.
class GrSemaphore : public GrGpuResource {
// The derived class can return its GrBackendSemaphore. This is used when flushing with signal
// semaphores so we can set the client's GrBackendSemaphore object after we've created the
// internal semaphore.
virtual GrBackendSemaphore backendSemaphore() const = 0;
const char* getResourceType() const override { return "semaphore"; }
explicit GrSemaphore(GrGpu* gpu) : INHERITED(gpu) {}
size_t onGpuMemorySize() const override { return 0; }
typedef GrGpuResource INHERITED;