1 /* 2 * Copyright 2017 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 GrSurfaceProxyPriv_DEFINED 9 #define GrSurfaceProxyPriv_DEFINED 10 11 #include "GrSurfaceProxy.h" 12 13 /** Class that adds methods to GrSurfaceProxy that are only intended for use internal to Skia. 14 This class is purely a privileged window into GrSurfaceProxy. It should never have additional 15 data members or virtual methods. */ 16 class GrSurfaceProxyPriv { 17 public: 18 // This should only be called after a successful call to instantiate 19 GrSurface* peekSurface() const { 20 SkASSERT(fProxy->fTarget); 21 return fProxy->fTarget; 22 } 23 24 // If the proxy is already instantiated, return its backing GrTexture; if not, 25 // return null 26 GrTexture* peekTexture() const { 27 return fProxy->fTarget ? fProxy->fTarget->asTexture() : nullptr; 28 } 29 30 // This should only be called after a successful call to instantiate 31 GrRenderTarget* peekRenderTarget() const { 32 SkASSERT(fProxy->fTarget && fProxy->fTarget->asRenderTarget()); 33 return fProxy->fTarget ? fProxy->fTarget->asRenderTarget() : nullptr; 34 } 35 36 // Beware! This call is only guaranteed to tell you if the proxy in question has 37 // any pending IO in its current state. It won't tell you about the IO state in the 38 // future when the proxy is actually used/instantiated. 39 bool hasPendingIO() const { return fProxy->hasPendingIO(); } 40 41 // Beware! This call is only guaranteed to tell you if the proxy in question has 42 // any pending writes in its current state. It won't tell you about the IO state in the 43 // future when the proxy is actually used/instantiated. 44 bool hasPendingWrite() const { return fProxy->hasPendingWrite(); } 45 46 // Create a GrSurface-derived class that meets the requirements (i.e, desc, renderability) 47 // of the GrSurfaceProxy. 48 sk_sp<GrSurface> createSurface(GrResourceProvider* resourceProvider) const { 49 return fProxy->createSurface(resourceProvider); 50 } 51 52 // Assign this proxy the provided GrSurface as its backing surface 53 void assign(sk_sp<GrSurface> surface) { fProxy->assign(std::move(surface)); } 54 55 // Don't abuse this call!!!!!!! 56 bool isExact() const { return SkBackingFit::kExact == fProxy->fFit; } 57 58 // Don't. Just don't. 59 void exactify(); 60 61 private: 62 explicit GrSurfaceProxyPriv(GrSurfaceProxy* proxy) : fProxy(proxy) {} 63 GrSurfaceProxyPriv(const GrSurfaceProxyPriv&) {} // unimpl 64 GrSurfaceProxyPriv& operator=(const GrSurfaceProxyPriv&); // unimpl 65 66 // No taking addresses of this type. 67 const GrSurfaceProxyPriv* operator&() const; 68 GrSurfaceProxyPriv* operator&(); 69 70 GrSurfaceProxy* fProxy; 71 72 friend class GrSurfaceProxy; // to construct/copy this type. 73 }; 74 75 inline GrSurfaceProxyPriv GrSurfaceProxy::priv() { return GrSurfaceProxyPriv(this); } 76 77 inline const GrSurfaceProxyPriv GrSurfaceProxy::priv () const { 78 return GrSurfaceProxyPriv(const_cast<GrSurfaceProxy*>(this)); 79 } 80 81 #endif 82
