1/*
2 * Copyright 2020 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 SkVerticesPriv_DEFINED
9#define SkVerticesPriv_DEFINED
10
11#include "include/core/SkVertices.h"
12
13struct SkVertices_DeprecatedBoneIndices { uint32_t values[4]; };
14struct SkVertices_DeprecatedBoneWeights { float values[4]; };
15struct SkVertices_DeprecatedBone { float values[6]; };
16
17/** Class that adds methods to SkVertices that are only intended for use internal to Skia.
18 This class is purely a privileged window into SkVertices. It should never have additional
19 data members or virtual methods. */
20class SkVerticesPriv {
21public:
22 SkVertices::VertexMode mode() const { return fVertices->fMode; }
23
24 bool hasCustomData() const { return SkToBool(fVertices->fCustomData); }
25 bool hasColors() const { return SkToBool(fVertices->fColors); }
26 bool hasTexCoords() const { return SkToBool(fVertices->fTexs); }
27 bool hasIndices() const { return SkToBool(fVertices->fIndices); }
28
29 bool hasUsage(SkVertices::Attribute::Usage) const;
30 bool usesLocalToWorldMatrix() const;
31
32 int vertexCount() const { return fVertices->fVertexCount; }
33 int indexCount() const { return fVertices->fIndexCount; }
34 int attributeCount() const { return fVertices->fAttributeCount; }
35 size_t customDataSize() const;
36
37 const SkPoint* positions() const { return fVertices->fPositions; }
38 const void* customData() const { return fVertices->fCustomData; }
39 const SkPoint* texCoords() const { return fVertices->fTexs; }
40 const SkColor* colors() const { return fVertices->fColors; }
41 const uint16_t* indices() const { return fVertices->fIndices; }
42 const SkVertices::Attribute* attributes() const { return fVertices->fAttributes; }
43
44 // Never called due to RVO in priv(), but must exist for MSVC 2017.
45 SkVerticesPriv(const SkVerticesPriv&) = default;
46
47private:
48 explicit SkVerticesPriv(SkVertices* vertices) : fVertices(vertices) {}
49 SkVerticesPriv& operator=(const SkVerticesPriv&) = delete;
50
51 // No taking addresses of this type
52 const SkVerticesPriv* operator&() const = delete;
53 SkVerticesPriv* operator&() = delete;
54
55 SkVertices* fVertices;
56
57 friend class SkVertices; // to construct this type
58};
59
60inline SkVerticesPriv SkVertices::priv() { return SkVerticesPriv(this); }
61
62inline const SkVerticesPriv SkVertices::priv() const {
63 return SkVerticesPriv(const_cast<SkVertices*>(this));
64}
65
66#endif
67