diff options
author | Sven Gothel <[email protected]> | 2012-11-11 05:01:56 +0100 |
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committer | Sven Gothel <[email protected]> | 2012-11-11 05:01:56 +0100 |
commit | 5fafc1ac360333645b807dcd8dff0c0a655ea439 (patch) | |
tree | c3c0af31dc6cc9a10e381151e5461bb2e033488a /src/jogl/classes/com/jogamp/opengl/FloatUtil.java | |
parent | 0edb45f11cd034c4937e6941b7a3e5d9f7edbd2f (diff) |
Reorganize math code into: com.jogamp.opengl.math and com.jogamp.opengl.math.geom packages
Note: WIP - We may relocate / reorg math package.
Public relocations:
com.jogamp.opengl.util -> com.jogamp.opengl.math
- FixedPoint
- FloatUtil
com.jogamp.graph.math -> com.jogamp.opengl.math
- Quaternion
- VectorUtil
com.jogamp.graph.geom -> com.jogamp.opengl.math.geom
- AABBox
VectorUtil:
Introducing Vert2fImmutable and Vert3fImmutable interfaces, allowing graph Vertex instances
to be used 'graph' agnostic and to document 2d/3d use-cases.
Diffstat (limited to 'src/jogl/classes/com/jogamp/opengl/FloatUtil.java')
-rw-r--r-- | src/jogl/classes/com/jogamp/opengl/FloatUtil.java | 426 |
1 files changed, 0 insertions, 426 deletions
diff --git a/src/jogl/classes/com/jogamp/opengl/FloatUtil.java b/src/jogl/classes/com/jogamp/opengl/FloatUtil.java deleted file mode 100644 index 16e8b1455..000000000 --- a/src/jogl/classes/com/jogamp/opengl/FloatUtil.java +++ /dev/null @@ -1,426 +0,0 @@ -/** - * Copyright 2010 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; - -import java.nio.FloatBuffer; - -import com.jogamp.common.os.Platform; - -/** - * Basic Float math utility functions. - * <p> - * Implementation assumes linear matrix layout in column-major order - * matching OpenGL's implementation. - * </p> - * <p> - * Derived from ProjectFloat.java - Created 11-jan-2004 - * </p> - * - * @author Erik Duijs - * @author Kenneth Russell - * @author Sven Gothel - */ -public class FloatUtil { - private static final float[] IDENTITY_MATRIX = - new float[] { - 1.0f, 0.0f, 0.0f, 0.0f, - 0.0f, 1.0f, 0.0f, 0.0f, - 0.0f, 0.0f, 1.0f, 0.0f, - 0.0f, 0.0f, 0.0f, 1.0f }; - - private static final float[] ZERO_MATRIX = - new float[] { - 0.0f, 0.0f, 0.0f, 0.0f, - 0.0f, 0.0f, 0.0f, 0.0f, - 0.0f, 0.0f, 0.0f, 0.0f, - 0.0f, 0.0f, 0.0f, 0.0f }; - - /** - * Make matrix an identity matrix - */ - public static final void makeIdentityf(float[] m, int offset) { - for (int i = 0; i < 16; i++) { - m[i+offset] = IDENTITY_MATRIX[i]; - } - } - - /** - * Make matrix an identity matrix - */ - public static final void makeIdentityf(FloatBuffer m) { - final int oldPos = m.position(); - m.put(IDENTITY_MATRIX); - m.position(oldPos); - } - - /** - * Make matrix an zero matrix - */ - public static final void makeZero(float[] m, int offset) { - for (int i = 0; i < 16; i++) { - m[i+offset] = 0; - } - } - - /** - * Make matrix an zero matrix - */ - public static final void makeZero(FloatBuffer m) { - final int oldPos = m.position(); - m.put(ZERO_MATRIX); - m.position(oldPos); - } - - /** - * @param a 4x4 matrix in column-major order - * @param b 4x4 matrix in column-major order - * @param d result a*b in column-major order - */ - public static final void multMatrixf(final float[] a, int a_off, final float[] b, int b_off, float[] d, int d_off) { - for (int i = 0; i < 4; i++) { - // one row in column-major order - final float ai0=a[a_off+i+0*4], ai1=a[a_off+i+1*4], ai2=a[a_off+i+2*4], ai3=a[a_off+i+3*4]; // row-i of a - d[d_off+i+0*4] = ai0 * b[b_off+0+0*4] + ai1 * b[b_off+1+0*4] + ai2 * b[b_off+2+0*4] + ai3 * b[b_off+3+0*4] ; - d[d_off+i+1*4] = ai0 * b[b_off+0+1*4] + ai1 * b[b_off+1+1*4] + ai2 * b[b_off+2+1*4] + ai3 * b[b_off+3+1*4] ; - d[d_off+i+2*4] = ai0 * b[b_off+0+2*4] + ai1 * b[b_off+1+2*4] + ai2 * b[b_off+2+2*4] + ai3 * b[b_off+3+2*4] ; - d[d_off+i+3*4] = ai0 * b[b_off+0+3*4] + ai1 * b[b_off+1+3*4] + ai2 * b[b_off+2+3*4] + ai3 * b[b_off+3+3*4] ; - } - } - - /** - * @param a 4x4 matrix in column-major order - * @param b 4x4 matrix in column-major order - * @param d result a*b in column-major order - */ - public static final void multMatrixf(final float[] a, int a_off, final float[] b, int b_off, FloatBuffer d) { - final int dP = d.position(); - for (int i = 0; i < 4; i++) { - // one row in column-major order - final float ai0=a[a_off+i+0*4], ai1=a[a_off+i+1*4], ai2=a[a_off+i+2*4], ai3=a[a_off+i+3*4]; // row-i of a - d.put(dP+i+0*4 , ai0 * b[b_off+0+0*4] + ai1 * b[b_off+1+0*4] + ai2 * b[b_off+2+0*4] + ai3 * b[b_off+3+0*4] ); - d.put(dP+i+1*4 , ai0 * b[b_off+0+1*4] + ai1 * b[b_off+1+1*4] + ai2 * b[b_off+2+1*4] + ai3 * b[b_off+3+1*4] ); - d.put(dP+i+2*4 , ai0 * b[b_off+0+2*4] + ai1 * b[b_off+1+2*4] + ai2 * b[b_off+2+2*4] + ai3 * b[b_off+3+2*4] ); - d.put(dP+i+3*4 , ai0 * b[b_off+0+3*4] + ai1 * b[b_off+1+3*4] + ai2 * b[b_off+2+3*4] + ai3 * b[b_off+3+3*4] ); - } - } - - /** - * @param a 4x4 matrix in column-major order - * @param b 4x4 matrix in column-major order - * @param d result a*b in column-major order - */ - public static final void multMatrixf(final FloatBuffer a, final float[] b, int b_off, FloatBuffer d) { - final int aP = a.position(); - final int dP = d.position(); - for (int i = 0; i < 4; i++) { - // one row in column-major order - final float ai0=a.get(aP+i+0*4), ai1=a.get(aP+i+1*4), ai2=a.get(aP+i+2*4), ai3=a.get(aP+i+3*4); // row-i of a - d.put(dP+i+0*4 , ai0 * b[b_off+0+0*4] + ai1 * b[b_off+1+0*4] + ai2 * b[b_off+2+0*4] + ai3 * b[b_off+3+0*4] ); - d.put(dP+i+1*4 , ai0 * b[b_off+0+1*4] + ai1 * b[b_off+1+1*4] + ai2 * b[b_off+2+1*4] + ai3 * b[b_off+3+1*4] ); - d.put(dP+i+2*4 , ai0 * b[b_off+0+2*4] + ai1 * b[b_off+1+2*4] + ai2 * b[b_off+2+2*4] + ai3 * b[b_off+3+2*4] ); - d.put(dP+i+3*4 , ai0 * b[b_off+0+3*4] + ai1 * b[b_off+1+3*4] + ai2 * b[b_off+2+3*4] + ai3 * b[b_off+3+3*4] ); - } - } - - /** - * @param a 4x4 matrix in column-major order - * @param b 4x4 matrix in column-major order - * @param d result a*b in column-major order - */ - public static final void multMatrixf(final FloatBuffer a, final FloatBuffer b, FloatBuffer d) { - final int aP = a.position(); - final int bP = b.position(); - final int dP = d.position(); - for (int i = 0; i < 4; i++) { - // one row in column-major order - final float ai0=a.get(aP+i+0*4), ai1=a.get(aP+i+1*4), ai2=a.get(aP+i+2*4), ai3=a.get(aP+i+3*4); // row-i of a - d.put(dP+i+0*4 , ai0 * b.get(bP+0+0*4) + ai1 * b.get(bP+1+0*4) + ai2 * b.get(bP+2+0*4) + ai3 * b.get(bP+3+0*4) ); - d.put(dP+i+1*4 , ai0 * b.get(bP+0+1*4) + ai1 * b.get(bP+1+1*4) + ai2 * b.get(bP+2+1*4) + ai3 * b.get(bP+3+1*4) ); - d.put(dP+i+2*4 , ai0 * b.get(bP+0+2*4) + ai1 * b.get(bP+1+2*4) + ai2 * b.get(bP+2+2*4) + ai3 * b.get(bP+3+2*4) ); - d.put(dP+i+3*4 , ai0 * b.get(bP+0+3*4) + ai1 * b.get(bP+1+3*4) + ai2 * b.get(bP+2+3*4) + ai3 * b.get(bP+3+3*4) ); - } - } - - - /** - * Normalize vector - * - * @param v makes len(v)==1 - */ - public static final void normalize(float[] v) { - float r = (float) Math.sqrt(v[0] * v[0] + v[1] * v[1] + v[2] * v[2]); - - if ( r == 0.0 || r == 1.0) { - return; - } - - r = 1.0f / r; - - v[0] *= r; - v[1] *= r; - v[2] *= r; - } - - /** - * Normalize vector - * - * @param v makes len(v)==1 - */ - public static final void normalize(FloatBuffer v) { - final int vPos = v.position(); - - float r = (float) Math.sqrt(v.get(0+vPos) * v.get(0+vPos) + - v.get(1+vPos) * v.get(1+vPos) + - v.get(2+vPos) * v.get(2+vPos)); - - if ( r == 0.0 || r == 1.0) { - return; - } - - r = 1.0f / r; - - v.put(0+vPos, v.get(0+vPos) * r); - v.put(1+vPos, v.get(1+vPos) * r); - v.put(2+vPos, v.get(2+vPos) * r); - } - - - /** - * Calculate cross-product of 2 vector - * - * @param v1 3-component vector - * @param v2 3-component vector - * @param result v1 X v2 - */ - public static final void cross(float[] v1, float[] v2, float[] result) { - result[0] = v1[1] * v2[2] - v1[2] * v2[1]; - result[1] = v1[2] * v2[0] - v1[0] * v2[2]; - result[2] = v1[0] * v2[1] - v1[1] * v2[0]; - } - - /** - * Calculate cross-product of 2 vector - * - * @param v1 3-component vector - * @param v2 3-component vector - * @param result v1 X v2 - */ - public static final void cross(FloatBuffer v1, FloatBuffer v2, FloatBuffer result) { - final int v1Pos = v1.position(); - final int v2Pos = v2.position(); - final int rPos = result.position(); - - result.put(0+rPos, v1.get(1+v1Pos) * v2.get(2+v2Pos) - v1.get(2+v1Pos) * v2.get(1+v2Pos)); - result.put(1+rPos, v1.get(2+v1Pos) * v2.get(0+v2Pos) - v1.get(0+v1Pos) * v2.get(2+v2Pos)); - result.put(2+rPos, v1.get(0+v1Pos) * v2.get(1+v2Pos) - v1.get(1+v1Pos) * v2.get(0+v2Pos)); - } - - /** - * @param m_in 4x4 matrix in column-major order - * @param m_in_off - * @param v_in 4-component column-vector - * @param v_out m_in * v_in - */ - public static final void multMatrixVecf(float[] m_in, int m_in_off, float[] v_in, int v_in_off, float[] v_out, int v_out_off) { - for (int i = 0; i < 4; i++) { - // (one matrix row in column-major order) X (column vector) - v_out[i + v_out_off] = - v_in[0+v_in_off] * m_in[0*4+i+m_in_off] + - v_in[1+v_in_off] * m_in[1*4+i+m_in_off] + - v_in[2+v_in_off] * m_in[2*4+i+m_in_off] + - v_in[3+v_in_off] * m_in[3*4+i+m_in_off]; - } - } - - /** - * @param m_in 4x4 matrix in column-major order - * @param m_in_off - * @param v_in 4-component column-vector - * @param v_out m_in * v_in - */ - public static final void multMatrixVecf(float[] m_in, float[] v_in, float[] v_out) { - for (int i = 0; i < 4; i++) { - // (one matrix row in column-major order) X (column vector) - v_out[i] = - v_in[0] * m_in[0*4+i] + - v_in[1] * m_in[1*4+i] + - v_in[2] * m_in[2*4+i] + - v_in[3] * m_in[3*4+i]; - } - } - - /** - * @param m_in 4x4 matrix in column-major order - * @param v_in 4-component column-vector - * @param v_out m_in * v_in - */ - public static final void multMatrixVecf(FloatBuffer m_in, float[] v_in, int v_in_off, float[] v_out, int v_out_off) { - final int matrixPos = m_in.position(); - for (int i = 0; i < 4; i++) { - // (one matrix row in column-major order) X (column vector) - v_out[i+v_out_off] = - v_in[0+v_in_off] * m_in.get(0*4+i+matrixPos) + - v_in[1+v_in_off] * m_in.get(1*4+i+matrixPos) + - v_in[2+v_in_off] * m_in.get(2*4+i+matrixPos) + - v_in[3+v_in_off] * m_in.get(3*4+i+matrixPos); - } - } - - /** - * @param m_in 4x4 matrix in column-major order - * @param v_in 4-component column-vector - * @param v_out m_in * v_in - */ - public static final void multMatrixVecf(FloatBuffer m_in, float[] v_in, float[] v_out) { - final int matrixPos = m_in.position(); - for (int i = 0; i < 4; i++) { - // (one matrix row in column-major order) X (column vector) - v_out[i] = - v_in[0] * m_in.get(0*4+i+matrixPos) + - v_in[1] * m_in.get(1*4+i+matrixPos) + - v_in[2] * m_in.get(2*4+i+matrixPos) + - v_in[3] * m_in.get(3*4+i+matrixPos); - } - } - - /** - * @param m_in 4x4 matrix in column-major order - * @param v_in 4-component column-vector - * @param v_out m_in * v_in - */ - public static final void multMatrixVecf(FloatBuffer m_in, FloatBuffer v_in, FloatBuffer v_out) { - final int inPos = v_in.position(); - final int outPos = v_out.position(); - final int matrixPos = m_in.position(); - for (int i = 0; i < 4; i++) { - // (one matrix row in column-major order) X (column vector) - v_out.put(i + outPos, - v_in.get(0+inPos) * m_in.get(0*4+i+matrixPos) + - v_in.get(1+inPos) * m_in.get(1*4+i+matrixPos) + - v_in.get(2+inPos) * m_in.get(2*4+i+matrixPos) + - v_in.get(3+inPos) * m_in.get(3*4+i+matrixPos)); - } - } - - /** - * @param sb optional passed StringBuilder instance to be used - * @param f the format string of one floating point, i.e. "%10.5f", see {@link java.util.Formatter} - * @param a mxn matrix (rows x columns) - * @param aOffset offset to <code>a</code>'s current position - * @param rows - * @param columns - * @param rowMajorOrder if true floats are layed out in row-major-order, otherwise column-major-order (OpenGL) - * @param row row number to print - * @return matrix row string representation - */ - public static StringBuilder matrixRowToString(StringBuilder sb, String f, FloatBuffer a, int aOffset, int rows, int columns, boolean rowMajorOrder, int row) { - if(null == sb) { - sb = new StringBuilder(); - } - final int a0 = aOffset + a.position(); - if(rowMajorOrder) { - for(int c=0; c<columns; c++) { - sb.append( String.format( f+" ", a.get( a0 + row*columns + c ) ) ); - } - } else { - for(int r=0; r<columns; r++) { - sb.append( String.format( f+" ", a.get( a0 + row + r*rows ) ) ); - } - } - return sb; - } - - /** - * @param sb optional passed StringBuilder instance to be used - * @param rowPrefix optional prefix for each row - * @param f the format string of one floating point, i.e. "%10.5f", see {@link java.util.Formatter} - * @param a mxn matrix (rows x columns) - * @param aOffset offset to <code>a</code>'s current position - * @param rows - * @param columns - * @param rowMajorOrder if true floats are layed out in row-major-order, otherwise column-major-order (OpenGL) - * @return matrix string representation - */ - public static StringBuilder matrixToString(StringBuilder sb, String rowPrefix, String f, FloatBuffer a, int aOffset, int rows, int columns, boolean rowMajorOrder) { - if(null == sb) { - sb = new StringBuilder(); - } - final String prefix = ( null == rowPrefix ) ? "" : rowPrefix; - for(int i=0; i<rows; i++) { - sb.append(prefix).append("[ "); - matrixRowToString(sb, f, a, aOffset, rows, columns, rowMajorOrder, i); - sb.append("]").append(Platform.getNewline()); - } - return sb; - } - - /** - * @param sb optional passed StringBuilder instance to be used - * @param rowPrefix optional prefix for each row - * @param f the format string of one floating point, i.e. "%10.5f", see {@link java.util.Formatter} - * @param a 4x4 matrix in column major order (OpenGL) - * @param aOffset offset to <code>a</code>'s current position - * @param b 4x4 matrix in column major order (OpenGL) - * @param bOffset offset to <code>a</code>'s current position - * @param rows - * @param columns - * @param rowMajorOrder if true floats are layed out in row-major-order, otherwise column-major-order (OpenGL) - * @return side by side representation - */ - public static StringBuilder matrixToString(StringBuilder sb, String rowPrefix, String f, FloatBuffer a, int aOffset, FloatBuffer b, int bOffset, int rows, int columns, boolean rowMajorOrder) { - if(null == sb) { - sb = new StringBuilder(); - } - final String prefix = ( null == rowPrefix ) ? "" : rowPrefix; - for(int i=0; i<rows; i++) { - sb.append(prefix).append("[ "); - matrixRowToString(sb, f, a, aOffset, rows, columns, rowMajorOrder, i); - sb.append("=?= "); - matrixRowToString(sb, f, b, bOffset, rows, columns, rowMajorOrder, i); - sb.append("]").append(Platform.getNewline()); - } - return sb; - } - - public static final float E = 2.7182818284590452354f; - - public static final float PI = 3.14159265358979323846f; - - public static float abs(float a) { return (float) java.lang.Math.abs(a); } - - public static float pow(float a, float b) { return (float) java.lang.Math.pow(a, b); } - - public static float sin(float a) { return (float) java.lang.Math.sin(a); } - - public static float cos(float a) { return (float) java.lang.Math.cos(a); } - - public static float acos(float a) { return (float) java.lang.Math.acos(a); } - - public static float sqrt(float a) { return (float) java.lang.Math.sqrt(a); } - -}
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