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/*
* Copyright (C) 2012 Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef WebTransformationMatrix_h
#define WebTransformationMatrix_h
#if WEBKIT_IMPLEMENTATION
#include "FloatPoint.h"
#include "FloatPoint3D.h"
#include "FloatQuad.h"
#include "TransformationMatrix.h"
#endif
#include "WebCommon.h"
#include "WebPrivateOwnPtr.h"
namespace WebKit {
class WebTransformationMatrix {
public:
WebTransformationMatrix();
WebTransformationMatrix(double a, double b, double c, double d, double e, double f);
WebTransformationMatrix(double m11, double m12, double m13, double m14,
double m21, double m22, double m23, double m24,
double m31, double m32, double m33, double m34,
double m41, double m42, double m43, double m44);
WebTransformationMatrix(const WebTransformationMatrix&);
~WebTransformationMatrix() { }
// Operations that return a separate matrix and do not modify this one.
WebTransformationMatrix inverse() const;
WebTransformationMatrix to2dTransform() const;
WebTransformationMatrix& operator=(const WebTransformationMatrix&);
bool operator==(const WebTransformationMatrix&) const;
WebTransformationMatrix operator*(const WebTransformationMatrix&) const;
// Operations that modify this matrix
void multiply(const WebTransformationMatrix&);
void makeIdentity();
void translate(double tx, double ty);
void translate3d(double tx, double ty, double tz);
void translateRight3d(double tx, double ty, double tz);
void scale(double s);
void scaleNonUniform(double sx, double sy);
void scale3d(double sx, double sy, double sz);
void rotate(double angle);
void rotate3d(double rx, double ry, double rz);
void rotate3d(double x, double y, double z, double angle);
void skewX(double angle);
void skewY(double angle);
void applyPerspective(double p);
void blend(const WebTransformationMatrix& from, double progress);
bool hasPerspective() const;
bool isInvertible() const;
bool isBackFaceVisible() const;
bool isIdentity() const;
bool isIdentityOrTranslation() const;
bool isIntegerTranslation() const;
// Accessors
double m11() const;
void setM11(double);
double m12() const;
void setM12(double);
double m13() const;
void setM13(double);
double m14() const;
void setM14(double);
double m21() const;
void setM21(double);
double m22() const;
void setM22(double);
double m23() const;
void setM23(double);
double m24() const;
void setM24(double);
double m31() const;
void setM31(double);
double m32() const;
void setM32(double);
double m33() const;
void setM33(double);
double m34() const;
void setM34(double);
double m41() const;
void setM41(double);
double m42() const;
void setM42(double);
double m43() const;
void setM43(double);
double m44() const;
void setM44(double);
double a() const;
void setA(double);
double b() const;
void setB(double);
double c() const;
void setC(double);
double d() const;
void setD(double);
double e() const;
void setE(double);
double f() const;
void setF(double);
#if WEBKIT_IMPLEMENTATION
// Conversions between WebKit::WebTransformationMatrix and WebCore::TransformationMatrix
explicit WebTransformationMatrix(const WebCore::TransformationMatrix&);
WebCore::TransformationMatrix toWebCoreTransform() const;
// FIXME: these map functions should not exist, should be using CCMathUtil
// instead. Eventually CCMathUtil functions could be merged here, but its
// not yet the right time for that.
WebCore::FloatPoint3D mapPoint(const WebCore::FloatPoint3D&) const;
WebCore::FloatPoint mapPoint(const WebCore::FloatPoint&) const;
WebCore::IntPoint mapPoint(const WebCore::IntPoint&) const;
#endif
protected:
// While migrating this code: Code that is external to WebKit should have no knowledge
// of WebCore::TransformationMatrix. But in those cases, this class still needs to
// be the same size so that the class can be passed back and forth between WebKit and
// non-WebKit code.
//
// The end goal is eventually for this class to only exist at the API boundary, as a
// conversion between WebCore TransformationMatrix and the compositor's internal
// implementation of matrix transforms.
//
#if WEBKIT_IMPLEMENTATION
WebCore::TransformationMatrix m_private;
#else
double m_matrix[4][4];
#endif
};
#if WEBKIT_IMPLEMENTATION
COMPILE_ASSERT(sizeof(WebCore::TransformationMatrix) == sizeof(double[4][4]), WebTransformationMatrix_has_unexpected_size);
#endif
} // namespace WebKit
#endif
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