bsalomon | afbf2d6 | 2014-09-30 12:18:44 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2014 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 GrSurfacePriv_DEFINED |
| 9 | #define GrSurfacePriv_DEFINED |
| 10 | |
| 11 | #include "GrSurface.h" |
| 12 | |
| 13 | /** Class that adds methods to GrSurface that are only intended for use internal to Skia. |
| 14 | This class is purely a privileged window into GrSurface. It should never have additional data |
| 15 | members or virtual methods. |
| 16 | Non-static methods that are not trivial inlines should be spring-boarded (e.g. declared and |
| 17 | implemented privately in GrSurface with a inline public method here). */ |
| 18 | class GrSurfacePriv { |
| 19 | public: |
| 20 | /** |
| 21 | * Derive a SkImageInfo from the surface's descriptor. This is lossy as ImageInfo has fields not |
| 22 | * known to GrSurface (e.g. alphaType). |
| 23 | */ |
| 24 | SkImageInfo info() const { return fSurface->info(); } |
| 25 | |
| 26 | /** |
bsalomon | afbf2d6 | 2014-09-30 12:18:44 -0700 | [diff] [blame] | 27 | * Write the contents of the surface to a PNG. Returns true if successful. |
| 28 | * @param filename Full path to desired file |
| 29 | */ |
| 30 | bool savePixels(const char* filename) { return fSurface->savePixels(filename); } |
| 31 | |
| 32 | bool hasPendingRead() const { return fSurface->hasPendingRead(); } |
| 33 | bool hasPendingWrite() const { return fSurface->hasPendingWrite(); } |
| 34 | bool hasPendingIO() const { return fSurface->hasPendingIO(); } |
| 35 | |
| 36 | private: |
bsalomon | 6bc1b5f | 2015-02-23 09:06:38 -0800 | [diff] [blame^] | 37 | explicit GrSurfacePriv(GrSurface* surface) : fSurface(surface) {} |
| 38 | GrSurfacePriv(const GrSurfacePriv&); // unimpl |
| 39 | GrSurfacePriv& operator=(const GrSurfacePriv&); // unimpl |
bsalomon | afbf2d6 | 2014-09-30 12:18:44 -0700 | [diff] [blame] | 40 | |
| 41 | // No taking addresses of this type. |
| 42 | const GrSurfacePriv* operator&() const; |
| 43 | GrSurfacePriv* operator&(); |
| 44 | |
| 45 | GrSurface* fSurface; |
| 46 | |
| 47 | friend class GrSurface; // to construct/copy this type. |
| 48 | }; |
| 49 | |
| 50 | inline GrSurfacePriv GrSurface::surfacePriv() { return GrSurfacePriv(this); } |
| 51 | |
| 52 | inline const GrSurfacePriv GrSurface::surfacePriv() const { |
| 53 | return GrSurfacePriv(const_cast<GrSurface*>(this)); |
| 54 | } |
| 55 | |
| 56 | #endif |