1/*
2 * Copyright 2019 Google Inc.
3 *
4 * Use of this source code is governed by a BSD-style license that can be
5 * found in the LICENSE file.
6 */
7
8#ifndef GrBaseContextPriv_DEFINED
9#define GrBaseContextPriv_DEFINED
10
11#include "include/private/GrContext_Base.h"
12
13/** Class that exposes methods on GrContext_Base that are only intended for use internal to Skia.
14    This class is purely a privileged window into GrContext_Base. It should never have
15    additional data members or virtual methods. */
16class SK_API GrBaseContextPriv {
17public:
18    GrContext_Base* context() { return fContext; }
19    const GrContext_Base* context() const { return fContext; }
20
21    uint32_t contextID() const { return this->context()->contextID(); }
22
23    bool matches(GrContext_Base* candidate) const { return this->context()->matches(candidate); }
24
25    const GrContextOptions& options() const { return this->context()->options(); }
26
27    const GrCaps* caps() const { return this->context()->caps(); }
28    sk_sp<const GrCaps> refCaps() const;
29
30    GrImageContext* asImageContext() { return this->context()->asImageContext(); }
31    GrRecordingContext* asRecordingContext() { return this->context()->asRecordingContext(); }
32    GrDirectContext* asDirectContext() { return this->context()->asDirectContext(); }
33
34    GrContextOptions::ShaderErrorHandler* getShaderErrorHandler() const;
35
36protected:
37    // Required until C++17 copy elision
38    GrBaseContextPriv(const GrBaseContextPriv&) = default;
39    explicit GrBaseContextPriv(GrContext_Base* context) : fContext(context) {}
40
41    GrContext_Base* fContext;
42
43private:
44    GrBaseContextPriv& operator=(const GrBaseContextPriv&) = delete;
45
46    // No taking addresses of this type.
47    const GrBaseContextPriv* operator&() const;
48    GrBaseContextPriv* operator&();
49
50    friend class GrContext_Base; // to construct/copy this type.
51};
52
53inline GrBaseContextPriv GrContext_Base::priv() { return GrBaseContextPriv(this); }
54
55inline const GrBaseContextPriv GrContext_Base::priv () const {  // NOLINT(readability-const-return-type)
56    return GrBaseContextPriv(const_cast<GrContext_Base*>(this));
57}
58
59#endif
60