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| -rw-r--r-- | src/jogl/classes/com/jogamp/opengl/math/Matrix4.java | 151 |
1 files changed, 151 insertions, 0 deletions
diff --git a/src/jogl/classes/com/jogamp/opengl/math/Matrix4.java b/src/jogl/classes/com/jogamp/opengl/math/Matrix4.java new file mode 100644 index 000000000..069e6a0a9 --- /dev/null +++ b/src/jogl/classes/com/jogamp/opengl/math/Matrix4.java @@ -0,0 +1,151 @@ +/** + * Copyright 2014 JogAmp Community. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, are + * permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, this list of + * conditions and the following disclaimer. + * + * 2. 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. + * + * THIS SOFTWARE IS PROVIDED BY JogAmp Community ``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 JogAmp Community 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. + * + * The views and conclusions contained in the software and documentation are those of the + * authors and should not be interpreted as representing official policies, either expressed + * or implied, of JogAmp Community. + */ + +package com.jogamp.opengl.math; + +import javax.media.opengl.fixedfunc.GLMatrixFunc; + +import com.jogamp.opengl.util.PMVMatrix; + +/** + * Simple float array-backed float 4x4 matrix + * exposing {@link FloatUtil} matrix functionality in an object oriented manner. + * <p> + * Unlike {@link PMVMatrix}, this class only represents one single matrix + * without a complete {@link GLMatrixFunc} implementation, + * allowing this class to be more lightweight. + * </p> + * <p> + * Implementation is not mature - WIP and subject to change. + * </p> + */ +public class Matrix4 { + + public Matrix4() { + matrix = new float[16]; + matrixTxSx = new float[16]; + mat4Tmp1 = new float[16]; + vec4Tmp1 = new float[4]; + FloatUtil.makeIdentity(matrixTxSx); + loadIdentity(); + } + + public final float[] getMatrix() { + return matrix; + } + + public final void loadIdentity() { + FloatUtil.makeIdentity(matrix); + } + + /** + * Multiply matrix: [this] = [this] x [m] + * @param m 4x4 matrix in column-major order + */ + public final void multMatrix(final float[] m, final int m_offset) { + FloatUtil.multMatrix(matrix, 0, m, m_offset); + } + + /** + * Multiply matrix: [this] = [this] x [m] + * @param m 4x4 matrix in column-major order + */ + public final void multMatrix(final float[] m) { + FloatUtil.multMatrix(matrix, m); + } + + /** + * Multiply matrix: [this] = [this] x [m] + * @param m 4x4 matrix in column-major order + */ + public final void multMatrix(final Matrix4 m) { + FloatUtil.multMatrix(matrix, m.getMatrix()); + } + + /** + * @param v_in 4-component column-vector + * @param v_out this * v_in + */ + public final void multVec(final float[] v_in, final float[] v_out) { + FloatUtil.multMatrixVec(matrix, v_in, v_out); + } + + /** + * @param v_in 4-component column-vector + * @param v_out this * v_in + */ + public final void multVec(final float[] v_in, final int v_in_offset, final float[] v_out, final int v_out_offset) { + FloatUtil.multMatrixVec(matrix, 0, v_in, v_in_offset, v_out, v_out_offset); + } + + public final void translate(final float x, final float y, final float z) { + multMatrix(FloatUtil.makeTranslation(matrixTxSx, false, x, y, z)); + } + + public final void scale(final float x, final float y, final float z) { + multMatrix(FloatUtil.makeScale(matrixTxSx, false, x, y, z)); + } + + public final void rotate(final float angrad, final float x, final float y, final float z) { + multMatrix(FloatUtil.makeRotationAxis(mat4Tmp1, 0, angrad, x, y, z, vec4Tmp1)); + } + + /** + * Rotate the current matrix with the given {@link Quaternion}'s rotation {@link Quaternion#toMatrix(float[], int) matrix representation}. + */ + public final void rotate(final Quaternion quat) { + multMatrix(quat.toMatrix(mat4Tmp1, 0)); + } + + public final void transpose() { + FloatUtil.transposeMatrix(matrix, 0, mat4Tmp1); + } + + public final float determinant() { + return FloatUtil.matrixDeterminant(matrix); + } + + public final boolean invert() { + return null != FloatUtil.invertMatrix(matrix, matrix); + } + + public final void makeOrtho(final float left, final float right, final float bottom, final float top, final float zNear, final float zFar) { + multMatrix( FloatUtil.makeOrtho(mat4Tmp1, 0, true, left, right, bottom, top, zNear, zFar) ); + } + + public final void makeFrustum(final float left, final float right, final float bottom, final float top, final float zNear, final float zFar) { + multMatrix( FloatUtil.makeFrustum(mat4Tmp1, 0, true, left, right, bottom, top, zNear, zFar) ); + } + + public final void makePerspective(final float fovy_rad, final float aspect, final float zNear, final float zFar) { + multMatrix( FloatUtil.makePerspective(mat4Tmp1, 0, true, fovy_rad, aspect, zNear, zFar) ); + } + + private final float[] matrix, matrixTxSx; + private final float[] mat4Tmp1, vec4Tmp1; +} |