72 lines
2.4 KiB
C
72 lines
2.4 KiB
C
|
/*
|
||
|
|
* Copyright 2018 Google Inc.
|
||
|
|
*
|
||
|
|
* Use of this source code is governed by a BSD-style license that can be
|
||
|
|
* found in the LICENSE file.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef GrSurfaceProxyRef_DEFINED
|
||
|
|
#define GrSurfaceProxyRef_DEFINED
|
||
|
|
|
||
|
|
#include "GrTypesPriv.h"
|
||
|
|
|
||
|
|
class GrSurfaceProxy;
|
||
|
|
|
||
|
|
class GrSurfaceProxyRef : SkNoncopyable {
|
||
|
|
public:
|
||
|
|
virtual ~GrSurfaceProxyRef();
|
||
|
|
|
||
|
|
GrSurfaceProxy* get() const { return fProxy; }
|
||
|
|
|
||
|
|
/** Does this object own a pending read or write on the resource it is wrapping. */
|
||
|
|
bool ownsPendingIO() const { return fPendingIO; }
|
||
|
|
|
||
|
|
/** What type of IO does this represent? This is independent of whether a normal ref or a
|
||
|
|
pending IO is currently held. */
|
||
|
|
GrIOType ioType() const { return fIOType; }
|
||
|
|
|
||
|
|
/** Shortcut for calling setProxy() with NULL. It cannot be called after markingPendingIO
|
||
|
|
is called. */
|
||
|
|
void reset();
|
||
|
|
|
||
|
|
protected:
|
||
|
|
GrSurfaceProxyRef();
|
||
|
|
|
||
|
|
/** ioType expresses what type of IO operations will be marked as
|
||
|
|
pending on the resource when markPendingIO is called. */
|
||
|
|
GrSurfaceProxyRef(sk_sp<GrSurfaceProxy>, GrIOType);
|
||
|
|
|
||
|
|
/** ioType expresses what type of IO operations will be marked as
|
||
|
|
pending on the resource when markPendingIO is called. */
|
||
|
|
void setProxy(sk_sp<GrSurfaceProxy>, GrIOType);
|
||
|
|
|
||
|
|
private:
|
||
|
|
/** Called by owning GrProgramElement when the program element is first scheduled for
|
||
|
|
execution. It can only be called once. */
|
||
|
|
void markPendingIO() const;
|
||
|
|
|
||
|
|
/** Called when the program element/draw state is no longer owned by GrOpList-client code.
|
||
|
|
This lets the cache know that the drawing code will no longer schedule additional reads or
|
||
|
|
writes to the resource using the program element or draw state. It can only be called once.
|
||
|
|
*/
|
||
|
|
void removeRef() const;
|
||
|
|
|
||
|
|
/** Called to indicate that the previous pending IO is complete. Useful when the owning object
|
||
|
|
still has refs, so it is not about to destroy this GrGpuResourceRef, but its previously
|
||
|
|
pending executions have been complete. Can only be called if removeRef() was not previously
|
||
|
|
called. */
|
||
|
|
void pendingIOComplete() const;
|
||
|
|
|
||
|
|
friend class GrResourceIOProcessor;
|
||
|
|
friend class GrOpList; // for setProxy
|
||
|
|
|
||
|
|
GrSurfaceProxy* fProxy;
|
||
|
|
mutable bool fOwnRef;
|
||
|
|
mutable bool fPendingIO;
|
||
|
|
GrIOType fIOType;
|
||
|
|
|
||
|
|
typedef SkNoncopyable INHERITED;
|
||
|
|
};
|
||
|
|
|
||
|
|
#endif
|