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Diffstat (limited to 'jni/feature_mos/src/mosaic/trsMatrix.h')
-rw-r--r-- | jni/feature_mos/src/mosaic/trsMatrix.h | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/jni/feature_mos/src/mosaic/trsMatrix.h b/jni/feature_mos/src/mosaic/trsMatrix.h new file mode 100644 index 000000000..054cc3335 --- /dev/null +++ b/jni/feature_mos/src/mosaic/trsMatrix.h @@ -0,0 +1,53 @@ +/* + * Copyright (C) 2011 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +/////////////////////////////////////////////////// +// trsMatrix.h +// $Id: trsMatrix.h,v 1.8 2011/06/17 13:35:48 mbansal Exp $ + +#ifndef TRSMATRIX_H_ +#define TRSMATRIX_H_ + + +// Calculate the determinant of a matrix +double det33d(const double m[3][3]); + +// Invert a matrix +void inv33d(const double m[3][3], double out[3][3]); + +// Multiply a = b * c +void mult33d(double a[3][3], double b[3][3], double c[3][3]); + +// Normalize matrix so matrix[2][2] is '1' +int normProjMat33d(double m[3][3]); + +inline double ProjZ(double trs[3][3], double x, double y, double f) +{ + return ((trs)[2][0]*(x) + (trs)[2][1]*(y) + (trs)[2][2]*(f)); +} + +inline double ProjX(double trs[3][3], double x, double y, double z, double f) +{ + return (((trs)[0][0]*(x) + (trs)[0][1]*(y) + (trs)[0][2]*(f)) / (z)); +} + +inline double ProjY(double trs[3][3], double x, double y, double z, double f) +{ + return (((trs)[1][0]*(x) + (trs)[1][1]*(y) + (trs)[1][2]*(f)) / (z)); +} + + +#endif |