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extern crate byteorder;
use self::byteorder::{ByteOrder, BigEndian};
extern crate image;
use self::image::GenericImage;
extern crate itertools;
use self::itertools::Itertools;
use checksum::checksum;
fn gametitle() -> [u8; 32] {
let mut gametitle: [u8; 32] = [0x00; 32];
let fzgx = "F-Zero GX".as_bytes();
for i in 0..fzgx.len() {
gametitle[i] = fzgx[i];
}
gametitle
}
fn read_block(emblem_data: &mut Vec<u8>, image: &image::DynamicImage,
alpha_threshold: i8, i: u32, j: u32) {
let i = i as u32;
let j = j as u32;
for x in i..i+4 {
for y in j..j+4 {
let pixel = image.get_pixel(x, y).data;
let r = pixel[0];
let g = pixel[1];
let b = pixel[2];
let a = pixel[3];
match a < alpha_threshold as u8 {
true => { emblem_data.push(0x00); },
false => {
let red = (r / 8) as u16;
let green = (g / 8) as u16;
let blue = (b / 8) as u16;
let alpha: u16 = 1;
let value: u16 = 32768*alpha + 1024*red + 32*green + blue;
let mut buf: [u8; 2] = [0x00; 2];
byteorder::BigEndian::write_u16(&mut buf, value as u16);
for byte in buf.iter() {
emblem_data.push(*byte);
}
}
}
}
}
}
const FZGX: [u8; 4] = *b"GFZE";
const SEGA: [u8; 2] = *b"8P";
pub struct Emblem {
gamecode: [u8; 4],
company: [u8; 2],
reserved01: u8,
banner_fmt: u8,
filename: [u8; 32],
timestamp: [u8; 4],
icon_addr: [u8; 4],
icon_fmt: [u8; 2],
icon_speed: [u8; 2],
permission: u8,
copy_counter: u8,
index: [u8; 2],
filesize8: [u8; 2],
reserved02: [u8; 2],
comment_addr: [u8; 4],
pub checksum: [u8; 2],
something3: [u8; 2],
game_title: [u8; 32],
file_comment: [u8; 60],
pub banner_data: [u8; 6144],
icon_data: [u8; 2048],
emblem_data: [u8; 8192],
padding: [u8; 8096]
}
impl Default for Emblem {
fn default() -> Self {
let game_title = gametitle();
Emblem {
gamecode: FZGX,
company: SEGA,
reserved01: 0xFF,
banner_fmt: 0x02,
filename: [0x00; 32],
timestamp: [0x00; 4],
icon_addr: [0x00, 0x00, 0x00, 0x60],
icon_fmt: [0x00, 0x02],
icon_speed: [0x00, 0x03],
permission: 0x04,
copy_counter: 0x00,
index: [0x00, 0x00],
filesize8: [0x00, 0x03],
reserved02: [0xFF, 0xFF],
comment_addr: [0x00, 0x00, 0x00, 0x04],
checksum: [0x00; 2],
something3: [0x04, 0x01],
game_title: game_title,
file_comment: [0x00; 60],
banner_data: [0x00; 6144],
icon_data: [0x00; 2048],
emblem_data: [0x00; 8192],
padding: [0x00; 8096]
}
}
}
impl Emblem {
pub fn set_filename(self: &mut Self, filename: String) {
let bytes = filename.as_bytes();
for i in 0..bytes.len() {
self.filename[i] = bytes[i];
}
}
pub fn set_timestamp(self: &mut Self, time: u32) {
let mut buf = [0x00; 4];
byteorder::BigEndian::write_u32(&mut buf, time);
self.timestamp = buf;
}
pub fn set_comment(self: &mut Self, comment: String) {
let comment_bytes = comment.as_bytes();
for i in 0..comment_bytes.len() {
self.file_comment[i] = comment_bytes[i];
}
}
pub fn set_emblem_data(self: &mut Self, image: image::DynamicImage, alpha_threshold: i8) {
let mut v = Vec::new();
for block_row in (0..image.width()).step(4) {
for block_col in (0..image.width()).step(4) {
read_block(&mut v, &image, alpha_threshold, block_row, block_col);
}
}
for i in 0..v.len() {
self.emblem_data[i] = v[i];
}
}
pub fn set_icon_data(self: &mut Self) {
let icon = include_bytes!("../data/emblem_icon");
for i in 0..icon.len() {
self.icon_data[i] = icon[i];
}
}
pub fn set_banner_data(self: &mut Self, image: image::DynamicImage, alpha_threshold: i8) {
let mut v: Vec<u8> = Vec::new();
let banner_file = include_bytes!("../data/emblem_banner_base");
let mut chunked_banner = banner_file.chunks(0x200);
for block_row in (0..32).step(4) {
for chunk in chunked_banner.nth(0) {
for byte in chunk {
v.push(*byte);
}
}
for block_col in (0..32).step(4) {
read_block(&mut v, &image, alpha_threshold, block_row, block_col);
}
}
for i in 0..v.len() {
self.banner_data[i] = v[i];
}
}
pub fn set_checksum(self: &mut Self) {
let mut v = Vec::new();
for byte in self.something3.iter() {
v.push(byte);
}
for byte in self.game_title.iter() {
v.push(byte);
}
for byte in self.file_comment.iter() {
v.push(byte);
}
for byte in self.banner_data.iter() {
v.push(byte);
}
for byte in self.icon_data.iter() {
v.push(byte);
}
for byte in self.emblem_data.iter() {
v.push(byte);
}
for byte in self.padding.iter() {
v.push(byte);
}
self.checksum = checksum(v);
}
pub fn as_bytes(self: Self) -> [u8; 24640] {
let mut v: [u8; 24640] = [0x00; 24640];
let mut index = 0;
for byte in self.gamecode.iter() {
v[index] = *byte;
index += 1;
}
for byte in self.company.iter() {
v[index] = *byte;
index += 1;
}
v[index] = self.reserved01;
index += 1;
v[index] = self.banner_fmt;
index += 1;
for byte in self.filename.iter() {
v[index] = *byte;
index += 1;
}
for byte in self.timestamp.iter() {
v[index] = *byte;
index += 1;
}
for byte in self.icon_addr.iter() {
v[index] = *byte;
index += 1;
}
for byte in self.icon_fmt.iter() {
v[index] = *byte;
index += 1;
}
for byte in self.icon_speed.iter() {
v[index] = *byte;
index += 1;
}
v[index] = self.permission;
index += 1;
v[index] = self.copy_counter;
index += 1;
for byte in self.index.iter() {
v[index] = *byte;
index += 1;
}
for byte in self.filesize8.iter() {
v[index] = *byte;
index += 1;
}
for byte in self.reserved02.iter() {
v[index] = *byte;
index += 1;
}
for byte in self.comment_addr.iter() {
v[index] = *byte;
index += 1;
}
for byte in self.checksum.iter() {
v[index] = *byte;
index += 1;
}
for byte in self.something3.iter() {
v[index] = *byte;
index += 1;
}
for byte in self.game_title.iter() {
v[index] = *byte;
index += 1;
}
for byte in self.file_comment.iter() {
v[index] = *byte;
index += 1;
}
for byte in self.banner_data.iter() {
v[index] = *byte;
index += 1;
}
for byte in self.icon_data.iter() {
v[index] = *byte;
index += 1;
}
for byte in self.emblem_data.iter() {
v[index] = *byte;
index += 1;
}
for byte in self.padding.iter() {
v[index] = *byte;
index += 1;
}
v
}
}