uint32_t rmask, gmask, bmask;
int rshift, gshift, bshift;
int pages;
int win_size, win_gran;
uint32_t vmem_addr;
size_t vmem_size;
uint32_t rmask, gmask, bmask;
int rshift, gshift, bshift;
int pages;
int win_size, win_gran;
uint32_t vmem_addr;
size_t vmem_size;