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