vsip_mview_uc *vsip_tmatrixview_uc(
const vsip_tview_uc *v,
vsip_tmslice slice,
vsip_index index)
{
vsip_mview_uc *mview = (vsip_mview_uc*)NULL;
vsip_block_uc *block = v->block;
vsip_offset off = v->offset;
if(slice == VSIP_TMYX){
off += index * v->z_stride;
mview = vsip_mbind_uc(block,off,
v->y_stride,v->y_length,
v->x_stride,v->x_length);
} else if(slice == VSIP_TMZX){
off += index * v->y_stride;
mview = vsip_mbind_uc(block,off,
v->z_stride,v->z_length,
v->x_stride,v->x_length);
} else if(slice == VSIP_TMZY){
off += index * v->x_stride;
mview = vsip_mbind_uc(block,off,
v->z_stride,v->z_length,
v->y_stride,v->y_length);
}
return mview;
}
vsip_mview_uc* (vsip_msubview_uc)(
const vsip_mview_uc* v,
vsip_index i,
vsip_index j,
vsip_length m,
vsip_length n) {
return vsip_mbind_uc(v->block,
v->offset + i * v->col_stride + j * v->row_stride,
v->col_stride,
m,
v->row_stride,
n);
}
vsip_mview_uc* (vsip_mcreate_uc)(
vsip_length col_length,
vsip_length row_length,
vsip_major major,
vsip_memory_hint mem_hint) {
vsip_block_uc* b = VI_blockcreate_uc(
(size_t)(col_length * row_length), mem_hint);
vsip_mview_uc* v = (vsip_mview_uc*)NULL;
if(b != NULL){
v = (major == VSIP_ROW)
?
vsip_mbind_uc(b, (vsip_offset)0,
(vsip_stride)row_length, col_length,
(vsip_stride)1, row_length)
:
vsip_mbind_uc(b, (vsip_offset)0,
(vsip_stride)1,col_length,
(vsip_stride)col_length, row_length);
if(v == (vsip_mview_uc*)NULL) VI_blockdestroy_uc(b);
}
return v;
}