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 GrTexturePriv_DEFINED
9#define GrTexturePriv_DEFINED
10
11#include "GrTexture.h"
12
13/** Class that adds methods to GrTexture that are only intended for use internal to Skia.
14    This class is purely a privileged window into GrTexture. 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 GrTexture with a inline public method here). */
18class GrTexturePriv {
19public:
20    void setFlag(GrSurfaceFlags flags) {
21        fTexture->fDesc.fFlags = fTexture->fDesc.fFlags | flags;
22    }
23
24    void resetFlag(GrSurfaceFlags flags) {
25        fTexture->fDesc.fFlags = fTexture->fDesc.fFlags & ~flags;
26    }
27
28    bool isSetFlag(GrSurfaceFlags flags) const {
29        return 0 != (fTexture->fDesc.fFlags & flags);
30    }
31
32    void dirtyMipMaps(bool mipMapsDirty) { fTexture->dirtyMipMaps(mipMapsDirty); }
33
34    bool mipMapsAreDirty() const {
35        return GrTexture::kValid_MipMapsStatus != fTexture->fMipMapsStatus;
36    }
37
38    bool hasMipMaps() const {
39        return GrTexture::kNotAllocated_MipMapsStatus != fTexture->fMipMapsStatus;
40    }
41
42    static void ComputeScratchKey(const GrSurfaceDesc&, GrScratchKey*);
43
44private:
45    GrTexturePriv(GrTexture* texture) : fTexture(texture) { }
46    GrTexturePriv(const GrTexturePriv& that) : fTexture(that.fTexture) { }
47    GrTexturePriv& operator=(const GrTexturePriv&); // unimpl
48
49    // No taking addresses of this type.
50    const GrTexturePriv* operator&() const;
51    GrTexturePriv* operator&();
52
53    GrTexture* fTexture;
54
55    friend class GrTexture; // to construct/copy this type.
56};
57
58inline GrTexturePriv GrTexture::texturePriv() { return GrTexturePriv(this); }
59
60inline const GrTexturePriv GrTexture::texturePriv () const {
61    return GrTexturePriv(const_cast<GrTexture*>(this));
62}
63
64#endif
65