add scale parsing

1 files changed, 24 insertions, 0 deletions

diff --git a/src/transform.c b/src/transform.c
index 6e4db56..465841d 100644
--- a/src/transform.c
+++ b/src/transform.c
@@ -83,6 +83,30 @@ int kai_parse_rotate(ka_matrix_t *m, ezxml_t tag)
 }
 
 
+int kai_parse_scale(ka_matrix_t *m, ezxml_t tag)
+{
+	if (strcmp("scale", ezxml_name(tag)) != 0)
+		return -1;
+	
+	char *str = ezxml_txt(tag);
+	char *end;
+	int i;
+	double scale[3];
+	for (i=0; i<3; i++) {
+		scale[i] = strtod(str, &end);
+		str = end;
+	}
+
+	memset(*m, 0, 16*sizeof(double));
+	(*m)[0] = scale[0];
+	(*m)[5] = scale[1];
+	(*m)[10] = scale[2];
+	(*m)[15] = 1.0f;
+	
+	return 0;
+}
+
+
 int kai_parse_translate(ka_matrix_t *m, ezxml_t tag)
 {
 	if (strcmp("translate", ezxml_name(tag)) != 0)