X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=isl_mat.c;h=e64beaee9aed0bacc1ac1c9e58b2669ae081710b;hb=7f17911bba7c398741edde2ce03c64b6555afbec;hp=ace8a43a9698f03ea9367ccf1d092a89683b4bb0;hpb=b09ed45859a4741b67709c81057a90bcd2ebf0aa;p=platform%2Fupstream%2Fisl.git

diff --git a/isl_mat.c b/isl_mat.c
index ace8a43..e64beae 100644
--- a/isl_mat.c
+++ b/isl_mat.c
@@ -14,6 +14,11 @@
 #include "isl_map_private.h"
 #include <isl_dim_private.h>
 
+isl_ctx *isl_mat_get_ctx(__isl_keep isl_mat *mat)
+{
+	return mat ? mat->ctx : NULL;
+}
+
 struct isl_mat *isl_mat_alloc(struct isl_ctx *ctx,
 	unsigned n_row, unsigned n_col)
 {
@@ -1192,7 +1197,7 @@ error:
 	return NULL;
 }
 
-void isl_mat_dump(struct isl_mat *mat, FILE *out, int indent)
+void isl_mat_print_internal(__isl_keep isl_mat *mat, FILE *out, int indent)
 {
 	int i, j;
 
@@ -1221,6 +1226,11 @@ void isl_mat_dump(struct isl_mat *mat, FILE *out, int indent)
 	}
 }
 
+void isl_mat_dump(__isl_keep isl_mat *mat)
+{
+	isl_mat_print_internal(mat, stderr, 0);
+}
+
 struct isl_mat *isl_mat_drop_cols(struct isl_mat *mat, unsigned col, unsigned n)
 {
 	int r;
@@ -1559,6 +1569,10 @@ __isl_give isl_mat *isl_mat_scale_down(__isl_take isl_mat *mat, isl_int m)
 {
 	int i;
 
+	if (isl_int_is_one(m))
+		return mat;
+
+	mat = isl_mat_cow(mat);
 	if (!mat)
 		return NULL;
 
@@ -1583,6 +1597,17 @@ __isl_give isl_mat *isl_mat_normalize(__isl_take isl_mat *mat)
 	return mat;
 }
 
+__isl_give isl_mat *isl_mat_normalize_row(__isl_take isl_mat *mat, int row)
+{
+	mat = isl_mat_cow(mat);
+	if (!mat)
+		return NULL;
+
+	isl_seq_normalize(mat->ctx, mat->row[row], mat->n_col);
+
+	return mat;
+}
+
 /* Number of initial non-zero columns.
  */
 int isl_mat_initial_non_zero_cols(__isl_keep isl_mat *mat)