54 lines
1.7 KiB
C++
54 lines
1.7 KiB
C++
/*
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* Copyright (C) 2007 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef SkColorMatrix_DEFINED
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#define SkColorMatrix_DEFINED
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#include "SkScalar.h"
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class SkColorMatrix {
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public:
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SkScalar fMat[20];
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void setIdentity();
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void setScale(SkScalar rScale, SkScalar gScale, SkScalar bScale,
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SkScalar aScale = SK_Scalar1);
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void preScale(SkScalar rScale, SkScalar gScale, SkScalar bScale,
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SkScalar aScale = SK_Scalar1);
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void postScale(SkScalar rScale, SkScalar gScale, SkScalar bScale,
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SkScalar aScale = SK_Scalar1);
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enum Axis {
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kR_Axis = 0,
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kG_Axis = 1,
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kB_Axis = 2
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};
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void setRotate(Axis, SkScalar degrees);
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void setSinCos(Axis, SkScalar sine, SkScalar cosine);
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void preRotate(Axis, SkScalar degrees);
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void postRotate(Axis, SkScalar degrees);
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void setConcat(const SkColorMatrix& a, const SkColorMatrix& b);
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void preConcat(const SkColorMatrix& mat) { this->setConcat(*this, mat); }
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void postConcat(const SkColorMatrix& mat) { this->setConcat(mat, *this); }
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void setSaturation(SkScalar sat);
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void setRGB2YUV();
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void setYUV2RGB();
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};
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#endif
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