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1 /* | 1 /* |
2 * Copyright 2012 The Android Open Source Project | 2 * Copyright 2012 The Android Open Source Project |
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 "SkMatrixConvolutionImageFilter.h" | 8 #include "SkMatrixConvolutionImageFilter.h" |
9 #include "SkBitmap.h" | 9 #include "SkBitmap.h" |
10 #include "SkColorPriv.h" | 10 #include "SkColorPriv.h" |
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32 SkImageFilter* input, | 32 SkImageFilter* input, |
33 const CropRect* cropRect) | 33 const CropRect* cropRect) |
34 : INHERITED(1, &input, cropRect), | 34 : INHERITED(1, &input, cropRect), |
35 fKernelSize(kernelSize), | 35 fKernelSize(kernelSize), |
36 fGain(gain), | 36 fGain(gain), |
37 fBias(bias), | 37 fBias(bias), |
38 fKernelOffset(kernelOffset), | 38 fKernelOffset(kernelOffset), |
39 fTileMode(tileMode), | 39 fTileMode(tileMode), |
40 fConvolveAlpha(convolveAlpha) { | 40 fConvolveAlpha(convolveAlpha) { |
41 size_t size = (size_t) sk_64_mul(fKernelSize.width(), fKernelSize.height()); | 41 size_t size = (size_t) sk_64_mul(fKernelSize.width(), fKernelSize.height()); |
42 fKernel = SkNEW_ARRAY(SkScalar, size); | 42 fKernel = new SkScalar[size]; |
43 memcpy(fKernel, kernel, size * sizeof(SkScalar)); | 43 memcpy(fKernel, kernel, size * sizeof(SkScalar)); |
44 SkASSERT(kernelSize.fWidth >= 1 && kernelSize.fHeight >= 1); | 44 SkASSERT(kernelSize.fWidth >= 1 && kernelSize.fHeight >= 1); |
45 SkASSERT(kernelOffset.fX >= 0 && kernelOffset.fX < kernelSize.fWidth); | 45 SkASSERT(kernelOffset.fX >= 0 && kernelOffset.fX < kernelSize.fWidth); |
46 SkASSERT(kernelOffset.fY >= 0 && kernelOffset.fY < kernelSize.fHeight); | 46 SkASSERT(kernelOffset.fY >= 0 && kernelOffset.fY < kernelSize.fHeight); |
47 } | 47 } |
48 | 48 |
49 SkMatrixConvolutionImageFilter* SkMatrixConvolutionImageFilter::Create( | 49 SkMatrixConvolutionImageFilter* SkMatrixConvolutionImageFilter::Create( |
50 const SkISize& kernelSize, | 50 const SkISize& kernelSize, |
51 const SkScalar* kernel, | 51 const SkScalar* kernel, |
52 SkScalar gain, | 52 SkScalar gain, |
53 SkScalar bias, | 53 SkScalar bias, |
54 const SkIPoint& kernelOffset, | 54 const SkIPoint& kernelOffset, |
55 TileMode tileMode, | 55 TileMode tileMode, |
56 bool convolveAlpha, | 56 bool convolveAlpha, |
57 SkImageFilter* input, | 57 SkImageFilter* input, |
58 const CropRect* cropRect) { | 58 const CropRect* cropRect) { |
59 if (kernelSize.width() < 1 || kernelSize.height() < 1) { | 59 if (kernelSize.width() < 1 || kernelSize.height() < 1) { |
60 return NULL; | 60 return NULL; |
61 } | 61 } |
62 if (gMaxKernelSize / kernelSize.fWidth < kernelSize.fHeight) { | 62 if (gMaxKernelSize / kernelSize.fWidth < kernelSize.fHeight) { |
63 return NULL; | 63 return NULL; |
64 } | 64 } |
65 if (!kernel) { | 65 if (!kernel) { |
66 return NULL; | 66 return NULL; |
67 } | 67 } |
68 if ((kernelOffset.fX < 0) || (kernelOffset.fX >= kernelSize.fWidth) || | 68 if ((kernelOffset.fX < 0) || (kernelOffset.fX >= kernelSize.fWidth) || |
69 (kernelOffset.fY < 0) || (kernelOffset.fY >= kernelSize.fHeight)) { | 69 (kernelOffset.fY < 0) || (kernelOffset.fY >= kernelSize.fHeight)) { |
70 return NULL; | 70 return NULL; |
71 } | 71 } |
72 return SkNEW_ARGS(SkMatrixConvolutionImageFilter, (kernelSize, kernel, gain,
bias, | 72 return new SkMatrixConvolutionImageFilter(kernelSize, kernel, gain, bias, ke
rnelOffset, |
73 kernelOffset, tileMode, c
onvolveAlpha, | 73 tileMode, convolveAlpha, input, cr
opRect); |
74 input, cropRect)); | |
75 } | 74 } |
76 | 75 |
77 SkFlattenable* SkMatrixConvolutionImageFilter::CreateProc(SkReadBuffer& buffer)
{ | 76 SkFlattenable* SkMatrixConvolutionImageFilter::CreateProc(SkReadBuffer& buffer)
{ |
78 SK_IMAGEFILTER_UNFLATTEN_COMMON(common, 1); | 77 SK_IMAGEFILTER_UNFLATTEN_COMMON(common, 1); |
79 SkISize kernelSize; | 78 SkISize kernelSize; |
80 kernelSize.fWidth = buffer.readInt(); | 79 kernelSize.fWidth = buffer.readInt(); |
81 kernelSize.fHeight = buffer.readInt(); | 80 kernelSize.fHeight = buffer.readInt(); |
82 const int count = buffer.getArrayCount(); | 81 const int count = buffer.getArrayCount(); |
83 | 82 |
84 const int64_t kernelArea = sk_64_mul(kernelSize.width(), kernelSize.height()
); | 83 const int64_t kernelArea = sk_64_mul(kernelSize.width(), kernelSize.height()
); |
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379 str->appendf("%f ", fKernel[y * fKernelSize.width() + x]); | 378 str->appendf("%f ", fKernel[y * fKernelSize.width() + x]); |
380 } | 379 } |
381 } | 380 } |
382 str->appendf(")"); | 381 str->appendf(")"); |
383 str->appendf("gain: %f bias: %f ", fGain, fBias); | 382 str->appendf("gain: %f bias: %f ", fGain, fBias); |
384 str->appendf("offset: (%d, %d) ", fKernelOffset.fX, fKernelOffset.fY); | 383 str->appendf("offset: (%d, %d) ", fKernelOffset.fX, fKernelOffset.fY); |
385 str->appendf("convolveAlpha: %s", fConvolveAlpha ? "true" : "false"); | 384 str->appendf("convolveAlpha: %s", fConvolveAlpha ? "true" : "false"); |
386 str->append(")"); | 385 str->append(")"); |
387 } | 386 } |
388 #endif | 387 #endif |
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