IMGU_OSYS_BLOCK_WIDTH
(IMGU_OSYS_BLOCK_WIDTH / IMGU_VMEM1_ELEMS_PER_VEC)
block_width = IMGU_OSYS_BLOCK_WIDTH;
reso.chunk_width = IMGU_OSYS_BLOCK_WIDTH;
reso.block_width = IMGU_OSYS_BLOCK_WIDTH;
reso.chunk_width = IMGU_OSYS_BLOCK_WIDTH / 2;
reso.block_width = IMGU_OSYS_BLOCK_WIDTH;