PIXEL_ARRAY_DIV
.dims = { DIV_ROUND_UP(360, PIXEL_ARRAY_DIV),
DIV_ROUND_UP(640, PIXEL_ARRAY_DIV) },
dims[0] = DIV_ROUND_UP(dev->src_rect.height, PIXEL_ARRAY_DIV);
dims[1] = DIV_ROUND_UP(dev->src_rect.width, PIXEL_ARRAY_DIV);