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 SmallPathShapeData_DEFINED
9#define SmallPathShapeData_DEFINED
10
11#include "src/core/SkOpts.h"
12#include "src/gpu/GrDrawOpAtlas.h"
13
14class GrStyledShape;
15
16namespace skgpu::v1 {
17
18class SmallPathShapeDataKey {
19public:
20    // TODO: add a move variant
21    SmallPathShapeDataKey(const SmallPathShapeDataKey& that) {
22        fKey.reset(that.fKey.count());
23        memcpy(fKey.get(), that.fKey.get(), fKey.count() * sizeof(uint32_t));
24    }
25
26    SmallPathShapeDataKey& operator=(const SmallPathShapeDataKey&) = delete;
27
28    // for SDF paths
29    SmallPathShapeDataKey(const GrStyledShape&, uint32_t dim);
30
31    // for bitmap paths
32    SmallPathShapeDataKey(const GrStyledShape&, const SkMatrix& ctm);
33
34    bool operator==(const SmallPathShapeDataKey & that) const {
35        return fKey.count() == that.fKey.count() &&
36                0 == memcmp(fKey.get(), that.fKey.get(), sizeof(uint32_t) * fKey.count());
37    }
38
39    int count32() const { return fKey.count(); }
40    const uint32_t* data() const { return fKey.get(); }
41
42private:
43    // The key is composed of the GrStyledShape's key, and either the dimensions of the DF
44    // generated for the path (32x32 max, 64x64 max, 128x128 max) if an SDF image or
45    // the matrix for the path with only fractional translation.
46    SkAutoSTArray<24, uint32_t> fKey;
47};
48
49class SmallPathShapeData {
50public:
51    SmallPathShapeData(const SmallPathShapeDataKey& key) : fKey(key) {}
52
53    const SmallPathShapeDataKey fKey;
54    SkRect                      fBounds;
55    GrDrawOpAtlas::AtlasLocator fAtlasLocator;
56
57    SK_DECLARE_INTERNAL_LLIST_INTERFACE(SmallPathShapeData);
58
59    static inline const SmallPathShapeDataKey& GetKey(const SmallPathShapeData& data) {
60        return data.fKey;
61    }
62
63    static inline uint32_t Hash(const SmallPathShapeDataKey& key) {
64        return SkOpts::hash(key.data(), sizeof(uint32_t) * key.count32());
65    }
66};
67
68} // namespace skgpu::v1
69
70#endif // SmallPathShapeData_DEFINED
71