1
2/*
3 * Copyright 2006 The Android Open Source Project
4 *
5 * Use of this source code is governed by a BSD-style license that can be
6 * found in the LICENSE file.
7 */
8
9
10/*  this guy is pulled in multiple times, with the following symbols defined each time:
11
12    #define BITMAP_CLASSNAME_PREFIX(name)           ARGB32##name
13    #defube BITMAP_PIXEL_TO_PMCOLOR(bitmap, x, y)   *bitmap.getAddr32(x, y)
14*/
15
16class BITMAP_CLASSNAME_PREFIX(_Point_Sampler) : public SkBitmapSampler {
17public:
18    BITMAP_CLASSNAME_PREFIX(_Point_Sampler)(const SkBitmap& bm, SkShader::TileMode tmx, SkShader::TileMode tmy)
19        : SkBitmapSampler(bm, false, tmx, tmy)
20    {
21    }
22
23    virtual SkPMColor sample(SkFixed x, SkFixed y) const
24    {
25        x = fTileProcX(SkFixedFloor(x), fMaxX);
26        y = fTileProcY(SkFixedFloor(y), fMaxY);
27        return BITMAP_PIXEL_TO_PMCOLOR(fBitmap, x, y);
28    }
29};
30
31
32class BITMAP_CLASSNAME_PREFIX(_Point_Clamp_Sampler) : public SkBitmapSampler {
33public:
34    BITMAP_CLASSNAME_PREFIX(_Point_Clamp_Sampler)(const SkBitmap& bm)
35        : SkBitmapSampler(bm, false, SkShader::kClamp_TileMode, SkShader::kClamp_TileMode)
36    {
37    }
38
39    virtual SkPMColor sample(SkFixed x, SkFixed y) const
40    {
41        x = do_clamp(SkFixedFloor(x), fMaxX);
42        y = do_clamp(SkFixedFloor(y), fMaxY);
43        return BITMAP_PIXEL_TO_PMCOLOR(fBitmap, x, y);
44    }
45};
46
47class BITMAP_CLASSNAME_PREFIX(_Point_Repeat_Pow2_Sampler) : public SkBitmapSampler {
48public:
49    BITMAP_CLASSNAME_PREFIX(_Point_Repeat_Pow2_Sampler)(const SkBitmap& bm)
50        : SkBitmapSampler(bm, false, SkShader::kRepeat_TileMode, SkShader::kRepeat_TileMode)
51    {
52    }
53
54    virtual SkPMColor sample(SkFixed x, SkFixed y) const
55    {
56        x = do_repeat_pow2(SkFixedFloor(x), fMaxX);
57        y = do_repeat_pow2(SkFixedFloor(y), fMaxY);
58        return BITMAP_PIXEL_TO_PMCOLOR(fBitmap, x, y);
59    }
60};
61
62class BITMAP_CLASSNAME_PREFIX(_Point_Repeat_Mod_Sampler) : public SkBitmapSampler {
63public:
64    BITMAP_CLASSNAME_PREFIX(_Point_Repeat_Mod_Sampler)(const SkBitmap& bm)
65        : SkBitmapSampler(bm, false, SkShader::kRepeat_TileMode, SkShader::kRepeat_TileMode)
66    {
67    }
68
69    virtual SkPMColor sample(SkFixed x, SkFixed y) const
70    {
71        x = do_repeat_mod(SkFixedFloor(x), fMaxX);
72        y = do_repeat_mod(SkFixedFloor(y), fMaxY);
73        return BITMAP_PIXEL_TO_PMCOLOR(fBitmap, x, y);
74    }
75};
76
77class BITMAP_CLASSNAME_PREFIX(_Point_Mirror_Pow2_Sampler) : public SkBitmapSampler {
78public:
79    BITMAP_CLASSNAME_PREFIX(_Point_Mirror_Pow2_Sampler)(const SkBitmap& bm)
80        : SkBitmapSampler(bm, false, SkShader::kMirror_TileMode, SkShader::kMirror_TileMode)
81    {
82    }
83
84    virtual SkPMColor sample(SkFixed x, SkFixed y) const
85    {
86        x = do_mirror_pow2(SkFixedFloor(x), fMaxX);
87        y = do_mirror_pow2(SkFixedFloor(y), fMaxY);
88        return BITMAP_PIXEL_TO_PMCOLOR(fBitmap, x, y);
89    }
90};
91
92class BITMAP_CLASSNAME_PREFIX(_Point_Mirror_Mod_Sampler) : public SkBitmapSampler {
93public:
94    BITMAP_CLASSNAME_PREFIX(_Point_Mirror_Mod_Sampler)(const SkBitmap& bm)
95        : SkBitmapSampler(bm, false, SkShader::kMirror_TileMode, SkShader::kMirror_TileMode)
96    {
97    }
98
99    virtual SkPMColor sample(SkFixed x, SkFixed y) const
100    {
101        x = do_mirror_mod(SkFixedFloor(x), fMaxX);
102        y = do_mirror_mod(SkFixedFloor(y), fMaxY);
103        return BITMAP_PIXEL_TO_PMCOLOR(fBitmap, x, y);
104    }
105};
106
107#undef BITMAP_CLASSNAME_PREFIX
108#undef BITMAP_PIXEL_TO_PMCOLOR
109