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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" |
11 #include "SkFlattenableBuffers.h" | 11 #include "SkFlattenableBuffers.h" |
12 #include "SkRect.h" | 12 #include "SkRect.h" |
13 #include "SkUnPreMultiply.h" | 13 #include "SkUnPreMultiply.h" |
14 | 14 |
15 #if SK_SUPPORT_GPU | 15 #if SK_SUPPORT_GPU |
16 #include "gl/GrGLEffect.h" | 16 #include "gl/GrGLEffect.h" |
17 #include "effects/GrSingleTextureEffect.h" | 17 #include "effects/GrSingleTextureEffect.h" |
18 #include "GrTBackendEffectFactory.h" | 18 #include "GrTBackendEffectFactory.h" |
19 #include "GrTexture.h" | 19 #include "GrTexture.h" |
20 #include "SkMatrix.h" | 20 #include "SkMatrix.h" |
21 | 21 |
22 #endif | 22 #endif |
23 | 23 |
24 namespace { | |
25 | |
26 bool TileModeIsValid(SkMatrixConvolutionImageFilter::TileMode tileMode) { | |
mtklein
2013/10/16 18:54:09
I just have this feeling tfarina is going to swoop
sugoi1
2013/10/16 20:07:41
Done.
| |
27 switch (tileMode) { | |
28 case SkMatrixConvolutionImageFilter::kClamp_TileMode: | |
29 case SkMatrixConvolutionImageFilter::kRepeat_TileMode: | |
30 case SkMatrixConvolutionImageFilter::kClampToBlack_TileMode: | |
31 return true; | |
32 default: | |
33 break; | |
34 } | |
35 return false; | |
36 } | |
37 | |
38 } | |
39 | |
24 SkMatrixConvolutionImageFilter::SkMatrixConvolutionImageFilter(const SkISize& ke rnelSize, const SkScalar* kernel, SkScalar gain, SkScalar bias, const SkIPoint& target, TileMode tileMode, bool convolveAlpha, SkImageFilter* input) | 40 SkMatrixConvolutionImageFilter::SkMatrixConvolutionImageFilter(const SkISize& ke rnelSize, const SkScalar* kernel, SkScalar gain, SkScalar bias, const SkIPoint& target, TileMode tileMode, bool convolveAlpha, SkImageFilter* input) |
25 : INHERITED(input), | 41 : INHERITED(input), |
26 fKernelSize(kernelSize), | 42 fKernelSize(kernelSize), |
27 fGain(gain), | 43 fGain(gain), |
28 fBias(bias), | 44 fBias(bias), |
29 fTarget(target), | 45 fTarget(target), |
30 fTileMode(tileMode), | 46 fTileMode(tileMode), |
31 fConvolveAlpha(convolveAlpha) { | 47 fConvolveAlpha(convolveAlpha) { |
32 uint32_t size = fKernelSize.fWidth * fKernelSize.fHeight; | 48 uint32_t size = fKernelSize.fWidth * fKernelSize.fHeight; |
33 fKernel = SkNEW_ARRAY(SkScalar, size); | 49 fKernel = SkNEW_ARRAY(SkScalar, size); |
34 memcpy(fKernel, kernel, size * sizeof(SkScalar)); | 50 memcpy(fKernel, kernel, size * sizeof(SkScalar)); |
35 SkASSERT(kernelSize.fWidth >= 1 && kernelSize.fHeight >= 1); | 51 SkASSERT(kernelSize.fWidth >= 1 && kernelSize.fHeight >= 1); |
36 SkASSERT(target.fX >= 0 && target.fX < kernelSize.fWidth); | 52 SkASSERT(target.fX >= 0 && target.fX < kernelSize.fWidth); |
37 SkASSERT(target.fY >= 0 && target.fY < kernelSize.fHeight); | 53 SkASSERT(target.fY >= 0 && target.fY < kernelSize.fHeight); |
38 } | 54 } |
39 | 55 |
40 SkMatrixConvolutionImageFilter::SkMatrixConvolutionImageFilter(SkFlattenableRead Buffer& buffer) : INHERITED(buffer) { | 56 SkMatrixConvolutionImageFilter::SkMatrixConvolutionImageFilter(SkFlattenableRead Buffer& buffer) : INHERITED(buffer) { |
41 fKernelSize.fWidth = buffer.readInt(); | 57 fKernelSize.fWidth = buffer.readInt(); |
42 fKernelSize.fHeight = buffer.readInt(); | 58 fKernelSize.fHeight = buffer.readInt(); |
43 uint32_t size = fKernelSize.fWidth * fKernelSize.fHeight; | 59 uint32_t size = fKernelSize.fWidth * fKernelSize.fHeight; |
44 fKernel = SkNEW_ARRAY(SkScalar, size); | 60 fKernel = SkNEW_ARRAY(SkScalar, size); |
45 SkDEBUGCODE(uint32_t readSize = )buffer.readScalarArray(fKernel); | 61 SkDEBUGCODE(uint32_t readSize = )buffer.readScalarArray(fKernel); |
46 SkASSERT(readSize == size); | 62 SkASSERT(readSize == size); |
47 fGain = buffer.readScalar(); | 63 fGain = buffer.readScalar(); |
48 fBias = buffer.readScalar(); | 64 fBias = buffer.readScalar(); |
49 fTarget.fX = buffer.readInt(); | 65 fTarget.fX = buffer.readInt(); |
50 fTarget.fY = buffer.readInt(); | 66 fTarget.fY = buffer.readInt(); |
51 fTileMode = (TileMode) buffer.readInt(); | 67 fTileMode = (TileMode) buffer.readInt(); |
52 fConvolveAlpha = buffer.readBool(); | 68 fConvolveAlpha = buffer.readBool(); |
69 buffer.validate(SkScalarIsFinite(fGain) && | |
70 SkScalarIsFinite(fBias) && | |
71 TileModeIsValid(fTileMode)); | |
53 } | 72 } |
54 | 73 |
55 void SkMatrixConvolutionImageFilter::flatten(SkFlattenableWriteBuffer& buffer) c onst { | 74 void SkMatrixConvolutionImageFilter::flatten(SkFlattenableWriteBuffer& buffer) c onst { |
56 this->INHERITED::flatten(buffer); | 75 this->INHERITED::flatten(buffer); |
57 buffer.writeInt(fKernelSize.fWidth); | 76 buffer.writeInt(fKernelSize.fWidth); |
58 buffer.writeInt(fKernelSize.fHeight); | 77 buffer.writeInt(fKernelSize.fHeight); |
59 buffer.writeScalarArray(fKernel, fKernelSize.fWidth * fKernelSize.fHeight); | 78 buffer.writeScalarArray(fKernel, fKernelSize.fWidth * fKernelSize.fHeight); |
60 buffer.writeScalar(fGain); | 79 buffer.writeScalar(fGain); |
61 buffer.writeScalar(fBias); | 80 buffer.writeScalar(fBias); |
62 buffer.writeInt(fTarget.fX); | 81 buffer.writeInt(fTarget.fX); |
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561 fBias, | 580 fBias, |
562 fTarget, | 581 fTarget, |
563 fTileMode, | 582 fTileMode, |
564 fConvolveAlpha); | 583 fConvolveAlpha); |
565 return true; | 584 return true; |
566 } | 585 } |
567 | 586 |
568 /////////////////////////////////////////////////////////////////////////////// | 587 /////////////////////////////////////////////////////////////////////////////// |
569 | 588 |
570 #endif | 589 #endif |
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