IMGU_VMEM2_VECS_PER_LINE
(IMGU_VMEM2_VECS_PER_LINE * IMGU_VMEM2_LINES_PER_BLOCK)
#define IMGU_VMEM2_BUF_Y_STRIDE (IMGU_VMEM2_VECS_PER_LINE)
#define IMGU_VMEM2_BUF_UV_STRIDE (IMGU_VMEM2_VECS_PER_LINE / 2)