skia2/include/effects/SkColorMatrix.h

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/*
Automatic update of all copyright notices to reflect new license terms. I have manually examined all of these diffs and restored a few files that seem to require manual adjustment. The following files still need to be modified manually, in a separate CL: android_sample/SampleApp/AndroidManifest.xml android_sample/SampleApp/res/layout/layout.xml android_sample/SampleApp/res/menu/sample.xml android_sample/SampleApp/res/values/strings.xml android_sample/SampleApp/src/com/skia/sampleapp/SampleApp.java android_sample/SampleApp/src/com/skia/sampleapp/SampleView.java experimental/CiCarbonSampleMain.c experimental/CocoaDebugger/main.m experimental/FileReaderApp/main.m experimental/SimpleCocoaApp/main.m experimental/iOSSampleApp/Shared/SkAlertPrompt.h experimental/iOSSampleApp/Shared/SkAlertPrompt.m experimental/iOSSampleApp/SkiOSSampleApp-Base.xcconfig experimental/iOSSampleApp/SkiOSSampleApp-Debug.xcconfig experimental/iOSSampleApp/SkiOSSampleApp-Release.xcconfig gpu/src/android/GrGLDefaultInterface_android.cpp gyp/common.gypi gyp_skia include/ports/SkHarfBuzzFont.h include/views/SkOSWindow_wxwidgets.h make.bat make.py src/opts/memset.arm.S src/opts/memset16_neon.S src/opts/memset32_neon.S src/opts/opts_check_arm.cpp src/ports/SkDebug_brew.cpp src/ports/SkMemory_brew.cpp src/ports/SkOSFile_brew.cpp src/ports/SkXMLParser_empty.cpp src/utils/ios/SkImageDecoder_iOS.mm src/utils/ios/SkOSFile_iOS.mm src/utils/ios/SkStream_NSData.mm tests/FillPathTest.cpp Review URL: http://codereview.appspot.com/4816058 git-svn-id: http://skia.googlecode.com/svn/trunk@1982 2bbb7eff-a529-9590-31e7-b0007b416f81
2011-07-28 14:26:00 +00:00
* Copyright 2007 The Android Open Source Project
*
Automatic update of all copyright notices to reflect new license terms. I have manually examined all of these diffs and restored a few files that seem to require manual adjustment. The following files still need to be modified manually, in a separate CL: android_sample/SampleApp/AndroidManifest.xml android_sample/SampleApp/res/layout/layout.xml android_sample/SampleApp/res/menu/sample.xml android_sample/SampleApp/res/values/strings.xml android_sample/SampleApp/src/com/skia/sampleapp/SampleApp.java android_sample/SampleApp/src/com/skia/sampleapp/SampleView.java experimental/CiCarbonSampleMain.c experimental/CocoaDebugger/main.m experimental/FileReaderApp/main.m experimental/SimpleCocoaApp/main.m experimental/iOSSampleApp/Shared/SkAlertPrompt.h experimental/iOSSampleApp/Shared/SkAlertPrompt.m experimental/iOSSampleApp/SkiOSSampleApp-Base.xcconfig experimental/iOSSampleApp/SkiOSSampleApp-Debug.xcconfig experimental/iOSSampleApp/SkiOSSampleApp-Release.xcconfig gpu/src/android/GrGLDefaultInterface_android.cpp gyp/common.gypi gyp_skia include/ports/SkHarfBuzzFont.h include/views/SkOSWindow_wxwidgets.h make.bat make.py src/opts/memset.arm.S src/opts/memset16_neon.S src/opts/memset32_neon.S src/opts/opts_check_arm.cpp src/ports/SkDebug_brew.cpp src/ports/SkMemory_brew.cpp src/ports/SkOSFile_brew.cpp src/ports/SkXMLParser_empty.cpp src/utils/ios/SkImageDecoder_iOS.mm src/utils/ios/SkOSFile_iOS.mm src/utils/ios/SkStream_NSData.mm tests/FillPathTest.cpp Review URL: http://codereview.appspot.com/4816058 git-svn-id: http://skia.googlecode.com/svn/trunk@1982 2bbb7eff-a529-9590-31e7-b0007b416f81
2011-07-28 14:26:00 +00:00
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef SkColorMatrix_DEFINED
#define SkColorMatrix_DEFINED
#include "SkScalar.h"
class SK_API SkColorMatrix {
#ifdef SK_SUPPORT_LEGACY_COLORMATRIX_PUBLIC
public:
#endif
enum {
kCount = 20
};
SkScalar fMat[kCount];
enum Elem {
kR_Scale = 0,
kG_Scale = 6,
kB_Scale = 12,
kA_Scale = 18,
kR_Trans = 4,
kG_Trans = 9,
kB_Trans = 14,
kA_Trans = 19,
};
void postTranslate(SkScalar rTrans, SkScalar gTrans, SkScalar bTrans,
SkScalar aTrans = 0);
static bool NeedsClamping(const SkScalar[20]);
static void SetConcat(SkScalar result[20], const SkScalar outer[20], const SkScalar inner[20]);
public:
void setIdentity();
void setScale(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();
void postTranslate255(SkScalar r, SkScalar g, SkScalar b, SkScalar a = 0) {
this->postTranslate(r, g, b, a);
}
bool operator==(const SkColorMatrix& other) const {
return 0 == memcmp(fMat, other.fMat, sizeof(fMat));
}
bool operator!=(const SkColorMatrix& other) const { return !((*this) == other); }
private:
friend class SkColorFilters;
};
#endif