+#if defined (MODULE_NAME_IS_i420_yuy2_altivec)
+#define VEC_NEXT_LINES( ) \
+ p_line1 = p_line2; \
+ p_line2 += p_dest->p->i_pitch; \
+ p_y1 = p_y2; \
+ p_y2 += p_source->p[Y_PLANE].i_pitch;
+
+#define VEC_LOAD_UV( ) \
+ u_vec = vec_ld( 0, p_u ); p_u += 16; \
+ v_vec = vec_ld( 0, p_v ); p_v += 16;
+
+#define VEC_MERGE( a ) \
+ vu_vec = a( v_vec, u_vec ); \
+ y_vec = vec_ld( 0, p_y1 ); p_y1 += 16; \
+ vec_st( vec_mergeh( y_vec, vu_vec ), 0, p_line1 ); p_line1 += 16; \
+ vec_st( vec_mergel( y_vec, vu_vec ), 0, p_line1 ); p_line1 += 16; \
+ y_vec = vec_ld( 0, p_y2 ); p_y2 += 16; \
+ vec_st( vec_mergeh( y_vec, vu_vec ), 0, p_line2 ); p_line2 += 16; \
+ vec_st( vec_mergel( y_vec, vu_vec ), 0, p_line2 ); p_line2 += 16;
+
+ vector unsigned char u_vec;
+ vector unsigned char v_vec;
+ vector unsigned char vu_vec;
+ vector unsigned char y_vec;
+
+ if( !( ( p_vout->render.i_width % 32 ) |
+ ( p_vout->render.i_height % 2 ) ) )
+ {
+ /* Width is a multiple of 32, we take 2 lines at a time */
+ for( i_y = p_vout->render.i_height / 2 ; i_y-- ; )
+ {
+ VEC_NEXT_LINES( );
+ for( i_x = p_vout->render.i_width / 32 ; i_x-- ; )
+ {
+ VEC_LOAD_UV( );
+ VEC_MERGE( vec_mergeh );
+ VEC_MERGE( vec_mergel );
+ }
+ }
+ }
+ else if( !( ( p_vout->render.i_width % 16 ) |
+ ( p_vout->render.i_height % 4 ) ) )
+ {
+ /* Width is only a multiple of 16, we take 4 lines at a time */
+ for( i_y = p_vout->render.i_height / 4 ; i_y-- ; )
+ {
+ /* Line 1 and 2, pixels 0 to ( width - 16 ) */
+ VEC_NEXT_LINES( );
+ for( i_x = p_vout->render.i_width / 32 ; i_x-- ; )
+ {
+ VEC_LOAD_UV( );
+ VEC_MERGE( vec_mergeh );
+ VEC_MERGE( vec_mergel );
+ }
+
+ /* Line 1 and 2, pixels ( width - 16 ) to ( width ) */
+ VEC_LOAD_UV( );
+ VEC_MERGE( vec_mergeh );
+
+ /* Line 3 and 4, pixels 0 to 16 */
+ VEC_NEXT_LINES( );
+ VEC_MERGE( vec_mergel );
+
+ /* Line 3 and 4, pixels 16 to ( width ) */
+ for( i_x = p_vout->render.i_width / 32 ; i_x-- ; )
+ {
+ VEC_LOAD_UV( );
+ VEC_MERGE( vec_mergeh );
+ VEC_MERGE( vec_mergel );
+ }
+ }
+ }
+ else
+ {
+ /* Crap, use the C version */
+#undef VEC_NEXT_LINES
+#undef VEC_LOAD_UV
+#undef VEC_MERGE
+#endif
+