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/*
* Copyright 2018 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "GrSurfaceProxyRef.h"
#include "GrTextureProxy.h"
GrSurfaceProxyRef::GrSurfaceProxyRef() {
fProxy = nullptr;
fOwnRef = false;
fPendingIO = false;
}
GrSurfaceProxyRef::GrSurfaceProxyRef(sk_sp<GrSurfaceProxy> proxy, GrIOType ioType) {
fProxy = nullptr;
fOwnRef = false;
fPendingIO = false;
this->setProxy(std::move(proxy), ioType);
}
GrSurfaceProxyRef::~GrSurfaceProxyRef() {
this->reset();
}
void GrSurfaceProxyRef::reset() {
if (fPendingIO) {
SkASSERT(fProxy);
switch (fIOType) {
case kRead_GrIOType:
fProxy->completedRead();
break;
case kWrite_GrIOType:
fProxy->completedWrite();
break;
case kRW_GrIOType:
fProxy->completedRead();
fProxy->completedWrite();
break;
}
fPendingIO = false;
}
if (fOwnRef) {
SkASSERT(fProxy);
fProxy->unref();
fOwnRef = false;
}
fProxy = nullptr;
}
void GrSurfaceProxyRef::setProxy(sk_sp<GrSurfaceProxy> proxy, GrIOType ioType) {
SkASSERT(!fPendingIO);
SkASSERT(SkToBool(fProxy) == fOwnRef);
SkSafeUnref(fProxy);
if (!proxy) {
fProxy = nullptr;
fOwnRef = false;
} else {
fProxy = proxy.release(); // due to the semantics of this class we unpack from sk_sp
fOwnRef = true;
fIOType = ioType;
}
}
void GrSurfaceProxyRef::markPendingIO() const {
// This should only be called when the owning GrProgramElement gets its first
// pendingExecution ref.
SkASSERT(!fPendingIO);
SkASSERT(fProxy);
fPendingIO = true;
switch (fIOType) {
case kRead_GrIOType:
fProxy->addPendingRead();
break;
case kWrite_GrIOType:
fProxy->addPendingWrite();
break;
case kRW_GrIOType:
fProxy->addPendingRead();
fProxy->addPendingWrite();
break;
}
}
void GrSurfaceProxyRef::pendingIOComplete() const {
// This should only be called when the owner's pending executions have ocurred but it is still
// reffed.
SkASSERT(fOwnRef);
SkASSERT(fPendingIO);
switch (fIOType) {
case kRead_GrIOType:
fProxy->completedRead();
break;
case kWrite_GrIOType:
fProxy->completedWrite();
break;
case kRW_GrIOType:
fProxy->completedRead();
fProxy->completedWrite();
break;
}
fPendingIO = false;
}
void GrSurfaceProxyRef::removeRef() const {
// This should only be called once, when the owners last ref goes away and
// there is a pending execution.
SkASSERT(fOwnRef);
SkASSERT(fPendingIO);
SkASSERT(fProxy);
fProxy->unref();
fOwnRef = false;
}
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