diff options
Diffstat (limited to 'src/glu/mesa/project.c')
| -rw-r--r-- | src/glu/mesa/project.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/src/glu/mesa/project.c b/src/glu/mesa/project.c index 6fa03267e5..2e79cdf084 100644 --- a/src/glu/mesa/project.c +++ b/src/glu/mesa/project.c @@ -346,7 +346,8 @@ gluUnProject(GLdouble winx, GLdouble winy, GLdouble winz, /* calcul transformation inverse */ matmul(A, proj, model); - invert_matrix(A, m); + if (!invert_matrix(A, m)) + return GL_FALSE; /* d'ou les coordonnees objets */ transform_point(out, m, in); @@ -386,7 +387,8 @@ gluUnProject4(GLdouble winx, GLdouble winy, GLdouble winz, GLdouble clipw, /* calcul transformation inverse */ matmul(A, projMatrix, modelMatrix); - invert_matrix(A, m); + if (!invert_matrix(A, m)) + return GL_FALSE; /* d'ou les coordonnees objets */ transform_point(out, m, in); |