MATRIX * swf_MatrixJoin(MATRIX * d,MATRIX * s1,MATRIX * s2);
MATRIX * swf_MatrixMapTriangle(MATRIX * m,int dx,int dy,
int x0,int y0,int x1,int y1,int x2,int y2);
MATRIX * swf_MatrixJoin(MATRIX * d,MATRIX * s1,MATRIX * s2);
MATRIX * swf_MatrixMapTriangle(MATRIX * m,int dx,int dy,
int x0,int y0,int x1,int y1,int x2,int y2);