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1 /* | 1 /* |
2 * Copyright 2013 Google Inc. | 2 * Copyright 2013 Google Inc. |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license that can be | 4 * Use of this source code is governed by a BSD-style license that can be |
5 * found in the LICENSE file. | 5 * found in the LICENSE file. |
6 */ | 6 */ |
7 | 7 |
8 #include "SkErrorInternals.h" | 8 #include "SkBitmapFilter.h" |
9 #include "SkConvolver.h" | |
10 #include "SkBitmapProcState.h" | |
11 #include "SkBitmap.h" | |
12 #include "SkColor.h" | |
13 #include "SkColorPriv.h" | |
14 #include "SkConvolver.h" | |
15 #include "SkUnPreMultiply.h" | |
16 #include "SkShader.h" | |
17 #include "SkRTConf.h" | 9 #include "SkRTConf.h" |
18 #include "SkMath.h" | 10 #include "SkTypes.h" |
| 11 |
| 12 #include <string.h> |
19 | 13 |
20 // These are the per-scanline callbacks that are used when we must resort to | 14 // These are the per-scanline callbacks that are used when we must resort to |
21 // resampling an image as it is blitted. Typically these are used only when | 15 // resampling an image as it is blitted. Typically these are used only when |
22 // the image is rotated or has some other complex transformation applied. | 16 // the image is rotated or has some other complex transformation applied. |
23 // Scaled images will usually be rescaled directly before rasterization. | 17 // Scaled images will usually be rescaled directly before rasterization. |
24 | 18 |
25 SK_CONF_DECLARE(const char *, c_bitmapFilter, "bitmap.filter", "mitchell", "Whic
h scanline bitmap filter to use [mitchell, lanczos, hamming, gaussian, triangle,
box]"); | 19 SK_CONF_DECLARE(const char *, c_bitmapFilter, "bitmap.filter", "mitchell", "Whic
h scanline bitmap filter to use [mitchell, lanczos, hamming, gaussian, triangle,
box]"); |
26 | 20 |
27 SkBitmapFilter *SkBitmapFilter::Allocate() { | 21 SkBitmapFilter *SkBitmapFilter::Allocate() { |
28 if (!strcmp(c_bitmapFilter, "mitchell")) { | 22 if (!strcmp(c_bitmapFilter, "mitchell")) { |
29 return SkNEW_ARGS(SkMitchellFilter,(1.f/3.f,1.f/3.f)); | 23 return SkNEW_ARGS(SkMitchellFilter,(1.f/3.f,1.f/3.f)); |
30 } else if (!strcmp(c_bitmapFilter, "lanczos")) { | 24 } else if (!strcmp(c_bitmapFilter, "lanczos")) { |
31 return SkNEW(SkLanczosFilter); | 25 return SkNEW(SkLanczosFilter); |
32 } else if (!strcmp(c_bitmapFilter, "hamming")) { | 26 } else if (!strcmp(c_bitmapFilter, "hamming")) { |
33 return SkNEW(SkHammingFilter); | 27 return SkNEW(SkHammingFilter); |
34 } else if (!strcmp(c_bitmapFilter, "gaussian")) { | 28 } else if (!strcmp(c_bitmapFilter, "gaussian")) { |
35 return SkNEW_ARGS(SkGaussianFilter,(2)); | 29 return SkNEW_ARGS(SkGaussianFilter,(2)); |
36 } else if (!strcmp(c_bitmapFilter, "triangle")) { | 30 } else if (!strcmp(c_bitmapFilter, "triangle")) { |
37 return SkNEW(SkTriangleFilter); | 31 return SkNEW(SkTriangleFilter); |
38 } else if (!strcmp(c_bitmapFilter, "box")) { | 32 } else if (!strcmp(c_bitmapFilter, "box")) { |
39 return SkNEW(SkBoxFilter); | 33 return SkNEW(SkBoxFilter); |
40 } else { | 34 } else { |
41 SkDEBUGFAIL("Unknown filter type"); | 35 SkDEBUGFAIL("Unknown filter type"); |
42 } | 36 } |
43 | 37 |
44 return NULL; | 38 return NULL; |
45 } | 39 } |
46 | 40 |
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