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authorBrian Paul <brianp@vmware.com>2009-04-03 12:49:03 -0600
committerBrian Paul <brianp@vmware.com>2009-04-03 12:49:03 -0600
commitce461ffc5aa2ea6941d6722e8ed473cda8c17833 (patch)
tree7811162b9dad12e17caf341678a44a54658d60fa
parentb8a200ac9d11c09646de9b7d3f3f64a742c6abe3 (diff)
mesa: only clear matrix MAT_DIRTY_INVERSE flag when we actually compute the inverse
If _math_matrix_analyse() got called before we allocated the inverse matrix array we could lose the flag indicating that we needed to compute the inverse. This could happen with certain vertex shader cases.
-rw-r--r--src/mesa/math/m_matrix.c5
1 files changed, 2 insertions, 3 deletions
diff --git a/src/mesa/math/m_matrix.c b/src/mesa/math/m_matrix.c
index 58cae88b08..da6956efed 100644
--- a/src/mesa/math/m_matrix.c
+++ b/src/mesa/math/m_matrix.c
@@ -1379,11 +1379,10 @@ _math_matrix_analyse( GLmatrix *mat )
if (mat->inv && (mat->flags & MAT_DIRTY_INVERSE)) {
matrix_invert( mat );
+ mat->flags &= ~MAT_DIRTY_INVERSE;
}
- mat->flags &= ~(MAT_DIRTY_FLAGS|
- MAT_DIRTY_TYPE|
- MAT_DIRTY_INVERSE);
+ mat->flags &= ~(MAT_DIRTY_FLAGS | MAT_DIRTY_TYPE);
}
/*@}*/