From 8a1c16ff38322f0210116fa7293eb8817c7e477e Mon Sep 17 00:00:00 2001 From: "reed@android.com" Date: Wed, 17 Dec 2008 15:59:43 +0000 Subject: grab from latest android git-svn-id: http://skia.googlecode.com/svn/trunk@27 2bbb7eff-a529-9590-31e7-b0007b416f81 --- include/effects/SkColorMatrix.h | 53 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 53 insertions(+) create mode 100644 include/effects/SkColorMatrix.h (limited to 'include/effects/SkColorMatrix.h') diff --git a/include/effects/SkColorMatrix.h b/include/effects/SkColorMatrix.h new file mode 100644 index 0000000000..cee5d6e2d6 --- /dev/null +++ b/include/effects/SkColorMatrix.h @@ -0,0 +1,53 @@ +/* + * 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 -- cgit v1.2.3