389 lines
14 KiB
Rust
389 lines
14 KiB
Rust
use std::collections::HashMap;
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use std::io::{Stdout, Write};
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use std::path::{Path, PathBuf};
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use std::sync::mpsc::Receiver;
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use std::time::{Duration, Instant};
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use structopt::StructOpt;
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use ferretro_components::base::ControlFlow;
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use ferretro_components::prelude::*;
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use ferretro_components::provided::stdlib::*;
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use termion::color::DetectColors;
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use termion::event::Key;
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use termion::input::TermRead;
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use termion::raw::{IntoRawMode, RawTerminal};
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use termion::screen::AlternateScreen;
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use termion::terminal_size;
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use anime_telnet::encoding::Encoder as AnsiArtEncoder;
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use anime_telnet::encoding::ProcessorPipeline;
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use anime_telnet::metadata::ColorMode;
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use fast_image_resize::FilterType;
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use image::RgbaImage;
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use sdl2::pixels::PixelFormatEnum;
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use sdl2::surface::Surface;
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#[derive(StructOpt)]
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struct Opt {
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/// Emulator core to use.
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#[structopt(short, long, parse(from_os_str))]
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core: PathBuf,
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/// Path to ROM.
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#[structopt(parse(from_os_str))]
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rom: PathBuf,
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/// Directory containing BIOS files
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#[structopt(short, long, parse(from_os_str))]
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system: Option<PathBuf>,
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}
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struct AnsiVideoComponent {
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terminal_width: u32,
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terminal_height: u32,
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color_mode: ColorMode,
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screen: AlternateScreen<RawTerminal<Stdout>>,
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fps: f32,
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framerate_sampling_start: Instant,
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frame_count: usize,
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frame_skip: usize,
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}
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impl AnsiArtEncoder for AnsiVideoComponent {
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fn needs_width(&self) -> u32 {
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self.terminal_width - 1
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}
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fn needs_height(&self) -> u32 {
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(self.terminal_height - 1) * 2 // half-blocks?
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}
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fn needs_color(&self) -> ColorMode {
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self.color_mode
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}
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}
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impl Default for AnsiVideoComponent {
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fn default() -> Self {
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let output = std::io::stdout().into_raw_mode().unwrap();
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let mut screen = AlternateScreen::from(output);
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write!(screen, "{}", termion::cursor::Hide).unwrap();
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let (w, h) = terminal_size().unwrap_or((80, 24));
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let (width, height) = (w as u32, h as u32);
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let colors = screen.available_colors().unwrap_or(16);
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let color_mode = if colors > 16 { ColorMode::True } else { ColorMode::EightBit };
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AnsiVideoComponent {
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terminal_width: width,
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terminal_height: height,
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color_mode,
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screen,
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fps: 60.0,
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framerate_sampling_start: Instant::now(),
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frame_count: 0,
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frame_skip: 0,
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}
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}
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}
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impl RetroCallbacks for AnsiVideoComponent {
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fn video_refresh(&mut self, frame: &VideoFrame) {
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match frame {
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VideoFrame::XRGB1555 { width, height, .. }
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| VideoFrame::RGB565 { width, height, .. }
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| VideoFrame::XRGB8888 { width, height, .. } => {
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let (bytes, pitch) = frame.data_pitch_as_bytes().unwrap();
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let pitch = pitch as u32;
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let format = match frame.pixel_format().unwrap() {
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PixelFormat::ARGB1555 => sdl2::pixels::PixelFormatEnum::RGB555,
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PixelFormat::ARGB8888 => sdl2::pixels::PixelFormatEnum::ARGB8888,
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PixelFormat::RGB565 => sdl2::pixels::PixelFormatEnum::RGB565,
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};
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// dirty, but must be &mut for SDL API.
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// safety: we don't actually mutate or leak the Surface we construct here.
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let data = unsafe {
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core::slice::from_raw_parts_mut(bytes.as_ptr() as *mut u8, bytes.len())
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};
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// has the screen size changed?
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let (w, h) = terminal_size().unwrap_or((80, 24));
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let (w, h) = (w as u32, h as u32);
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let force_redraw = if self.terminal_width != w || self.terminal_height != h {
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self.terminal_width = w as u32;
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self.terminal_height = h as u32;
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self.frame_skip = 0;
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write!(self.screen, "{}", termion::clear::All).unwrap();
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true
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} else {
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false
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};
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if !force_redraw {
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if self.frame_skip != 0 && self.frame_count % self.frame_skip != 0 {
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return;
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}
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}
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if let Ok(surf) = Surface::from_data(data, *width, *height, pitch, format) {
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let rgba_raw = surf.into_canvas().unwrap().read_pixels(None, PixelFormatEnum::ABGR8888).unwrap();
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let rgba_img = RgbaImage::from_raw(*width, *height, rgba_raw).unwrap();
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let processor = ProcessorPipeline {
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filter: FilterType::Hamming,
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width: self.needs_width(),
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height: self.needs_height(),
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color_modes: Some(self.needs_color()).into_iter().collect(),
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};
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let processed = processor.process(&rgba_img).into_iter().next().unwrap().1;
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write!(self.screen, "{}", termion::cursor::Goto(1, 1)).unwrap();
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for line in self.encode_frame(&processed).lines() {
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write!(self.screen, "{}\r\n", line).unwrap();
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}
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write!(self.screen, "\x1B[0m").unwrap();
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self.screen.flush().unwrap();
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} else if force_redraw {
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// TODO: draw last copy
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}
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}
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_ => {}
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}
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}
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fn get_variable(&mut self, key: &str) -> Option<String> {
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match key {
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"parallel-n64-gfxplugin" => Some("angrylion".to_string()),
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_ => None,
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}
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}
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}
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impl RetroComponent for AnsiVideoComponent {
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fn post_run(&mut self, _retro: &mut LibretroWrapper) -> ControlFlow {
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self.frame_count += 1;
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if self.frame_skip < 10 && self.frame_count > 10 {
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let now = Instant::now();
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let period = now.duration_since(self.framerate_sampling_start).as_secs_f32();
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let actual_fps = self.frame_count as f32 / period;
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if actual_fps < self.fps * 2.0 / 3.0 {
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self.frame_skip += 1;
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self.frame_count = 0;
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self.framerate_sampling_start = now;
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}
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}
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ControlFlow::Continue
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}
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fn post_load_game(&mut self, retro: &mut LibretroWrapper, _rom: &Path) -> ferretro_components::base::Result<()> {
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self.fps = retro.get_system_av_info().timing.fps as f32;
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Ok(())
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}
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}
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struct TermiosInputComponent {
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//reader: AsyncReader,
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receiver: Receiver<(Instant, Key)>,
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want_quit: bool,
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preferred_pad: Option<u32>,
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button_map: HashMap<Key, InputDeviceId>,
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axis_maps: [HashMap<Key, (i16, i16)>; 2],
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button_state: HashMap<InputDeviceId, (Instant, i16)>,
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axis_state: [(Instant, [i16; 2]); 2],
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}
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impl Default for TermiosInputComponent {
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fn default() -> Self {
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let (sender, receiver) = std::sync::mpsc::channel();
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std::thread::spawn(move || {
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for k in std::io::stdin().keys().map(|kr| kr.unwrap()) {
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sender.send((Instant::now(), k)).unwrap();
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if k == Key::Esc {
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break
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}
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}
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});
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TermiosInputComponent {
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//reader: termion::async_stdin(),
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receiver,
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want_quit: false,
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preferred_pad: None,
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button_map: [
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(Key::Up, InputDeviceId::Joypad(JoypadButton::Up)),
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(Key::Down, InputDeviceId::Joypad(JoypadButton::Down)),
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(Key::Left, InputDeviceId::Joypad(JoypadButton::Left)),
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(Key::Right, InputDeviceId::Joypad(JoypadButton::Right)),
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(Key::Char('x'), InputDeviceId::Joypad(JoypadButton::A)),
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(Key::Char('z'), InputDeviceId::Joypad(JoypadButton::B)),
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(Key::Char('s'), InputDeviceId::Joypad(JoypadButton::X)),
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(Key::Char('a'), InputDeviceId::Joypad(JoypadButton::Y)),
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(Key::Ctrl('x'), InputDeviceId::Joypad(JoypadButton::A)),
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(Key::Ctrl('z'), InputDeviceId::Joypad(JoypadButton::B)),
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(Key::Ctrl('s'), InputDeviceId::Joypad(JoypadButton::X)),
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(Key::Ctrl('a'), InputDeviceId::Joypad(JoypadButton::Y)),
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(Key::Alt('x'), InputDeviceId::Joypad(JoypadButton::A)),
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(Key::Alt('z'), InputDeviceId::Joypad(JoypadButton::B)),
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(Key::Alt('s'), InputDeviceId::Joypad(JoypadButton::X)),
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(Key::Alt('a'), InputDeviceId::Joypad(JoypadButton::Y)),
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(Key::Char('q'), InputDeviceId::Joypad(JoypadButton::L)),
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(Key::Char('w'), InputDeviceId::Joypad(JoypadButton::R)),
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(Key::Ctrl('q'), InputDeviceId::Joypad(JoypadButton::L2)),
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(Key::Ctrl('w'), InputDeviceId::Joypad(JoypadButton::R2)),
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(Key::Alt('q'), InputDeviceId::Joypad(JoypadButton::L3)),
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(Key::Alt('w'), InputDeviceId::Joypad(JoypadButton::R3)),
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(Key::Char('\n'), InputDeviceId::Joypad(JoypadButton::Start)),
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(Key::Backspace, InputDeviceId::Joypad(JoypadButton::Select)),
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(Key::Char('\t'), InputDeviceId::Joypad(JoypadButton::Select)),
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].into_iter().collect(),
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axis_maps: [
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[
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(Key::Char('1'), (i16::MIN, i16::MAX)),
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(Key::Char('2'), (0, i16::MAX)),
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(Key::Char('3'), (i16::MAX, i16::MAX)),
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(Key::Char('4'), (i16::MIN, 0)),
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(Key::Char('5'), (0, 0)),
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(Key::Char('6'), (i16::MAX, 0)),
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(Key::Char('7'), (i16::MIN + 1, i16::MIN + 1)), // ???
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(Key::Char('8'), (0, i16::MIN)),
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(Key::Char('9'), (i16::MAX, i16::MIN)),
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].into_iter().collect(),
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[
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(Key::Char('r'), (0, i16::MIN)),
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(Key::Char('d'), (0, i16::MAX)),
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(Key::Char('e'), (i16::MIN, 0)),
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(Key::Char('f'), (i16::MAX, 0)),
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].into_iter().collect(),
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],
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button_state: Default::default(),
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axis_state: [(Instant::now(), [0, 0]); 2],
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}
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}
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}
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impl RetroCallbacks for TermiosInputComponent {
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fn input_poll(&mut self) {
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while let Ok((now, k)) = self.receiver.try_recv() {
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if k == Key::Esc {
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self.want_quit = true;
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}
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if let Some(mapping) = self.button_map.get(&k) {
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self.button_state.insert(mapping.to_owned(), (now, 1));
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}
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for (axis_map, axis_state) in self.axis_maps.iter().zip(self.axis_state.iter_mut()) {
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let (mut sum_x, mut sum_y) = (0, 0);
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let mut count = 0;
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if let Some((x, y)) = axis_map.get(&k) {
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sum_x += *x as i32;
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sum_y += *y as i32;
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count += 1;
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}
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if count != 0 {
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let average_x = (sum_x / count) as i16;
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let average_y = (sum_y / count) as i16;
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*axis_state = (now, [average_x, average_y]);
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}
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}
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}
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}
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fn input_state(&mut self, port: u32, device: InputDeviceId, index: InputIndex) -> i16 {
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if port != 0 {
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return 0;
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}
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if let Some((inst, val)) = self.button_state.get(&device) {
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// TODO: consult kbdrate.c (and X11?) for durations (can't detect key-up/held, only repeat)
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if Instant::now().duration_since(*inst) < Duration::from_millis(300) {
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return *val;
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}
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}
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match device {
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InputDeviceId::Analog(axis_id) => {
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let (inst, axes) = self.axis_state[index as u32 as usize];
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let since = Instant::now().duration_since(inst);
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let ratio = if since < Duration::from_millis(100) {
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1.0
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} else if since < Duration::from_millis(300) {
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(0.3 - since.as_secs_f32()) * 5.0
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} else {
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0.0
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};
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(axes[axis_id as u32 as usize] as f32 * ratio) as i16
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}
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// TODO: mouse?
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_ => 0,
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}
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}
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fn get_variable(&mut self, key: &str) -> Option<String> {
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match key {
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"beetle_saturn_analog_stick_deadzone" => Some("15%".to_string()),
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"parallel-n64-astick-deadzone" => Some("15%".to_string()),
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_ => None,
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}
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}
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fn get_input_device_capabilities(&mut self) -> Option<u64> {
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let bits = (1 << (DeviceType::Joypad as u32)) | (1 << (DeviceType::Analog as u32));
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Some(bits as u64)
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}
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fn set_controller_info(&mut self, controller_info: &[ControllerDescription2]) -> Option<bool> {
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for ci in controller_info {
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// so we can have analog support in beetle/mednafen saturn
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if ci.name.as_str() == "3D Control Pad" {
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self.preferred_pad = Some(ci.device_id());
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break;
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}
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}
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Some(true)
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}
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}
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impl RetroComponent for TermiosInputComponent {
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fn post_run(&mut self, _: &mut LibretroWrapper) -> ControlFlow {
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if self.want_quit {
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ControlFlow::Break
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} else {
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ControlFlow::Continue
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}
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}
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fn post_load_game(&mut self, retro: &mut LibretroWrapper, _rom: &Path) -> ferretro_components::base::Result<()> {
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if let Some(device) = self.preferred_pad {
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retro.set_controller_port_device(0, device);
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}
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Ok(())
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}
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}
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fn main() -> Result<(), Box<dyn std::error::Error + Send + Sync>> {
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let opt: Opt = Opt::from_args();
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let mut emu = RetroComponentBase::new(&opt.core);
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emu.register_component(AnsiVideoComponent::default())?;
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emu.register_component(TermiosInputComponent::default())?;
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emu.register_component(StatefulInputComponent::default())?;
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emu.register_component(PathBufComponent {
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sys_path: opt.system.clone(),
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libretro_path: Some(opt.core.to_path_buf()),
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core_assets_path: None,
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save_path: Some(std::env::temp_dir()),
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})?;
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let mut vars_comp = VariableStoreComponent::default();
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vars_comp.insert("mgba_skip_bios", "ON");
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vars_comp.insert("mgba_sgb_borders", "OFF");
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emu.register_component(vars_comp)?;
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emu.register_component(SleepFramerateLimitComponent::default())?;
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emu.init()?;
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emu.load_game(&opt.rom)?;
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while let ControlFlow::Continue = emu.run() {
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}
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Ok(())
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}
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