aboutsummaryrefslogtreecommitdiffstats
path: root/src/jogl/classes/com/jogamp/opengl/FloatUtil.java
diff options
context:
space:
mode:
authorSven Gothel <[email protected]>2012-11-11 05:01:56 +0100
committerSven Gothel <[email protected]>2012-11-11 05:01:56 +0100
commit5fafc1ac360333645b807dcd8dff0c0a655ea439 (patch)
treec3c0af31dc6cc9a10e381151e5461bb2e033488a /src/jogl/classes/com/jogamp/opengl/FloatUtil.java
parent0edb45f11cd034c4937e6941b7a3e5d9f7edbd2f (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.java426
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); }
-
-} \ No newline at end of file