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Added missing static methods to Matrix3f for consistency. Cleaned up handling of src == dest aliasing

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This commit is contained in:
Elias Naur 2006-06-16 08:20:21 +00:00
parent 48a52a67ce
commit dbf9356358
2 changed files with 189 additions and 179 deletions
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16
src/java/org/lwjgl/util/vector/Matrix2f.java
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@ -73,10 +73,10 @@ public class Matrix2f extends Matrix implements Serializable {
}
/**
* Copy src matrix to the dest matrix.
* Copy the source matrix to the destination matrix.
* @param src The source matrix
* @param dest The destination matrix, or null if a new one should be created.
* @return this
* @return dest
*/
public static Matrix2f load(Matrix2f src, Matrix2f dest) {
if (dest == null)
@ -253,7 +253,7 @@ public class Matrix2f extends Matrix implements Serializable {
}
/**
* Transpose source matrix and place the result in dest matrix.
* Transpose the source matrix and place the result in the destination matrix.
* @param src The source matrix or null if a new matrix is to be created
* @param dest The destination matrix or null if a new matrix is to be created
* @return the transposed matrix
@ -280,19 +280,19 @@ public class Matrix2f extends Matrix implements Serializable {
}
/**
* Invert the source matrix and place the result in the dest matrix.
* Invert the source matrix and place the result in the destination matrix.
* @param src The source matrix to be inverted
* @param dest The destination matrix or null if a new matrix is to be created
* @return The inverted matrix, or null if source can't be reverted.
*/
public Matrix2f invert(Matrix2f src, Matrix2f dest) {
public static Matrix2f invert(Matrix2f src, Matrix2f dest) {
if (dest == null)
dest = new Matrix2f();
/*
*inv(A) = 1/det(A) * adj(A);
*/
float determinant = determinant();
float determinant = src.determinant();
if (determinant != 0) {
float determinant_inv = 1f/determinant;
float t00 = src.m11*determinant_inv;
@ -337,7 +337,7 @@ public class Matrix2f extends Matrix implements Serializable {
}
/**
* Negate src matrix and stash the result in dest matrix.
* Negate the source matrix and stash the result in the destination matrix.
* @param src The source matrix to be negated
* @param dest The destination matrix, or null if a new matrix is to be created
* @return the negated matrix
@ -363,7 +363,7 @@ public class Matrix2f extends Matrix implements Serializable {
}
/**
* Set the ssrc matrix to be the identity matrix.
* Set the source matrix to be the identity matrix.
* @param src The matrix to set to the identity.
* @return The source matrix
*/