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| author | Brian <brian.paul@tungstengraphics.com> | 2007-09-03 16:20:05 -0600 |
|---|---|---|
| committer | Brian <brian.paul@tungstengraphics.com> | 2007-09-03 16:22:14 -0600 |
| commit | c2e1ee08b083638a7306e15ca48e9ea516d42dc4 (patch) | |
| tree | 62b3f6a8c6f685b778d7bc923cd3832dff9261a3 /src/glu | |
| parent | 2f8ff58c0e8fbb60974be9c2412db8610b2152e2 (diff) | |
| download | external_mesa3d-c2e1ee08b083638a7306e15ca48e9ea516d42dc4.zip external_mesa3d-c2e1ee08b083638a7306e15ca48e9ea516d42dc4.tar.gz external_mesa3d-c2e1ee08b083638a7306e15ca48e9ea516d42dc4.tar.bz2 | |
Use temporary matrix in __gluInvertMatrixd() to fix aliasing problem (see bugs 12269, 6748)
Diffstat (limited to 'src/glu')
| -rw-r--r-- | src/glu/sgi/libutil/project.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/src/glu/sgi/libutil/project.c b/src/glu/sgi/libutil/project.c index d22989c..356b46b 100644 --- a/src/glu/sgi/libutil/project.c +++ b/src/glu/sgi/libutil/project.c @@ -171,9 +171,9 @@ static void __gluMultMatrixVecd(const GLdouble matrix[16], const GLdouble in[4], ** Invert 4x4 matrix. ** Contributed by David Moore (See Mesa bug #6748) */ -static int __gluInvertMatrixd(const GLdouble m[16], GLdouble inv[16]) +static int __gluInvertMatrixd(const GLdouble m[16], GLdouble invOut[16]) { - double det; + double inv[16], det; int i; inv[0] = m[5]*m[10]*m[15] - m[5]*m[11]*m[14] - m[9]*m[6]*m[15] @@ -216,7 +216,7 @@ static int __gluInvertMatrixd(const GLdouble m[16], GLdouble inv[16]) det = 1.0 / det; for (i = 0; i < 16; i++) - inv[i] *= det; + invOut[i] = inv[i] * det; return GL_TRUE; } |