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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/gpu/GrContextOptions.h"
12 #include "include/private/gpu/ganesh/GrContext_Base.h"
13 
14 /** Class that exposes methods on GrContext_Base that are only intended for use internal to Skia.
15     This class is purely a privileged window into GrContext_Base. It should never have
16     additional data members or virtual methods. */
17 class GrBaseContextPriv {
18 public:
context()19     GrContext_Base* context() { return fContext; }
context()20     const GrContext_Base* context() const { return fContext; }
21 
contextID()22     uint32_t contextID() const { return this->context()->contextID(); }
23 
matches(GrContext_Base * candidate)24     bool matches(GrContext_Base* candidate) const { return this->context()->matches(candidate); }
25 
options()26     const GrContextOptions& options() const { return this->context()->options(); }
27 
caps()28     const GrCaps* caps() const { return this->context()->caps(); }
29     sk_sp<const GrCaps> refCaps() const;
30 
asImageContext()31     GrImageContext* asImageContext() { return this->context()->asImageContext(); }
asRecordingContext()32     GrRecordingContext* asRecordingContext() { return this->context()->asRecordingContext(); }
asDirectContext()33     GrDirectContext* asDirectContext() { return this->context()->asDirectContext(); }
34 
35     GrContextOptions::ShaderErrorHandler* getShaderErrorHandler() const;
36 
37 protected:
GrBaseContextPriv(GrContext_Base * context)38     explicit GrBaseContextPriv(GrContext_Base* context) : fContext(context) {}
39 
40     GrContext_Base* fContext;
41 
42 private:
43     GrBaseContextPriv& operator=(const GrBaseContextPriv&) = delete;
44 
45     // No taking addresses of this type.
46     const GrBaseContextPriv* operator&() const;
47     GrBaseContextPriv* operator&();
48 
49     friend class GrContext_Base; // to construct/copy this type.
50 };
51 
priv()52 inline GrBaseContextPriv GrContext_Base::priv() { return GrBaseContextPriv(this); }
53 
priv()54 inline const GrBaseContextPriv GrContext_Base::priv () const {  // NOLINT(readability-const-return-type)
55     return GrBaseContextPriv(const_cast<GrContext_Base*>(this));
56 }
57 
58 #endif
59