src/gpu/GrImageContextPriv.h

/*
 * Copyright 2019 Google Inc.
 *
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 */

#ifndef GrImageContextPriv_DEFINED
#define GrImageContextPriv_DEFINED

#include "include/private/GrImageContext.h"

#include "include/gpu/GrContextThreadSafeProxy.h"

/** Class that exposes methods on GrImageContext that are only intended for use internal to Skia.
    This class is purely a privileged window into GrImageContext. It should never have
    additional data members or virtual methods. */
class GrImageContextPriv {
public:
    // from GrContext_Base
    uint32_t contextID() const { return fContext->contextID(); }

    bool matches(GrContext_Base* candidate) const { return fContext->matches(candidate); }

    const GrContextOptions& options() const { return fContext->options(); }

    const GrCaps* caps() const { return fContext->caps(); }
    sk_sp<const GrCaps> refCaps() const;

    GrImageContext* asImageContext() { return fContext->asImageContext(); }
    GrRecordingContext* asRecordingContext() { return fContext->asRecordingContext(); }

    bool abandoned() const { return fContext->abandoned(); }

    static sk_sp<GrImageContext> MakeForPromiseImage(sk_sp<GrContextThreadSafeProxy> tsp) {
        return GrImageContext::MakeForPromiseImage(std::move(tsp));
    }

    /** This is only useful for debug purposes */
    SkDEBUGCODE(GrSingleOwner* singleOwner() const { return fContext->singleOwner(); } )

private:
    explicit GrImageContextPriv(GrImageContext* context) : fContext(context) {}
    GrImageContextPriv(const GrImageContextPriv&) = delete;
    GrImageContextPriv& operator=(const GrImageContextPriv&) = delete;

    // No taking addresses of this type.
    const GrImageContextPriv* operator&() const;
    GrImageContextPriv* operator&();

    GrImageContext* fContext;

    friend class GrImageContext; // to construct/copy this type.
};

inline GrImageContextPriv GrImageContext::priv() { return GrImageContextPriv(this); }

inline const GrImageContextPriv GrImageContext::priv () const {  // NOLINT(readability-const-return-type)
    return GrImageContextPriv(const_cast<GrImageContext*>(this));
}

#endif