1/*
2 * Copyright 2021 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#include "modules/androidkit/src/Utils.h"
9
10namespace androidkit {
11namespace utils {
12
13SkSamplingOptions SamplingOptions(jint desc, jfloat coeffB, jfloat coeffC) {
14    if (desc & 0x01) {
15        return SkSamplingOptions(SkCubicResampler{coeffB, coeffC});
16    }
17
18    const auto fm = static_cast<SkFilterMode>((desc >> 1) & 0x01);
19    SkASSERT(fm <= SkFilterMode::kLast);
20    const auto mm = static_cast<SkMipmapMode>((desc >> 2) & 0x03);
21    SkASSERT(mm <= SkMipmapMode::kLast);
22
23    return SkSamplingOptions(fm, mm);
24}
25
26SkTileMode TileMode(jint tm) {
27    // to catch Skia API changes
28    static_assert(static_cast<int>(SkTileMode::kClamp ) == 0);
29    static_assert(static_cast<int>(SkTileMode::kRepeat) == 1);
30    static_assert(static_cast<int>(SkTileMode::kMirror) == 2);
31    static_assert(static_cast<int>(SkTileMode::kDecal ) == 3);
32
33    return static_cast<SkTileMode>(tm);
34}
35
36SkBlendMode BlendMode(jint bm) {
37    // catch API changes
38    static_assert(0 == static_cast<int>(SkBlendMode::kClear));
39    static_assert(1 == static_cast<int>(SkBlendMode::kSrc));
40    static_assert(2 == static_cast<int>(SkBlendMode::kDst));
41    static_assert(3 == static_cast<int>(SkBlendMode::kSrcOver));
42    static_assert(4 == static_cast<int>(SkBlendMode::kDstOver));
43    static_assert(5 == static_cast<int>(SkBlendMode::kSrcIn));
44    static_assert(6 == static_cast<int>(SkBlendMode::kDstIn));
45    static_assert(7 == static_cast<int>(SkBlendMode::kSrcOut));
46    static_assert(8 == static_cast<int>(SkBlendMode::kDstOut));
47    static_assert(9 == static_cast<int>(SkBlendMode::kSrcATop));
48    static_assert(10 == static_cast<int>(SkBlendMode::kDstATop));
49    static_assert(11 == static_cast<int>(SkBlendMode::kXor));
50    static_assert(12 == static_cast<int>(SkBlendMode::kPlus));
51    static_assert(13 == static_cast<int>(SkBlendMode::kModulate));
52    static_assert(14 == static_cast<int>(SkBlendMode::kScreen));
53
54    static_assert(15 == static_cast<int>(SkBlendMode::kOverlay));
55    static_assert(16 == static_cast<int>(SkBlendMode::kDarken));
56    static_assert(17 == static_cast<int>(SkBlendMode::kLighten));
57    static_assert(18 == static_cast<int>(SkBlendMode::kColorDodge));
58    static_assert(19 == static_cast<int>(SkBlendMode::kColorBurn));
59    static_assert(20 == static_cast<int>(SkBlendMode::kHardLight));
60    static_assert(21 == static_cast<int>(SkBlendMode::kSoftLight));
61    static_assert(22 == static_cast<int>(SkBlendMode::kDifference));
62    static_assert(23 == static_cast<int>(SkBlendMode::kExclusion));
63    static_assert(24 == static_cast<int>(SkBlendMode::kMultiply));
64
65    static_assert(25 == static_cast<int>(SkBlendMode::kHue));
66    static_assert(26 == static_cast<int>(SkBlendMode::kSaturation));
67    static_assert(27 == static_cast<int>(SkBlendMode::kColor));
68    static_assert(28 == static_cast<int>(SkBlendMode::kLuminosity));
69
70
71    return static_cast<SkBlendMode>(bm);
72}
73
74} // namespace utils
75} // namespace androidkit
76