add audio

This commit is contained in:
bQUARKz 2026-01-14 17:55:06 +00:00
parent e0fccbae6b
commit 79a0768d8e
Signed by: bquarkz
SSH Key Fingerprint: SHA256:Z7dgqoglWwoK6j6u4QC87OveEq74WOhFN+gitsxtkf8
11 changed files with 861 additions and 49 deletions

324
Cargo.lock generated
View File

@ -31,12 +31,43 @@ dependencies = [
"zerocopy", "zerocopy",
] ]
[[package]]
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]
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[[package]] [[package]]
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@ -51,7 +82,7 @@ dependencies = [
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"libc", "libc",
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"ndk-context", "ndk-context",
"ndk-sys 0.6.0+11769913", "ndk-sys 0.6.0+11769913",
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@ -112,6 +143,24 @@ version = "1.5.0"
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@ -220,6 +269,15 @@ version = "1.1.0"
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@ -238,6 +296,17 @@ version = "0.2.1"
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@ -338,6 +407,49 @@ dependencies = [
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[[package]] [[package]]
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@ -361,6 +473,12 @@ dependencies = [
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] ]
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@ -388,6 +506,12 @@ version = "0.1.2"
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@ -401,7 +525,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]] [[package]]
@ -470,6 +594,12 @@ dependencies = [
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] ]
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@ -520,7 +650,7 @@ dependencies = [
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"thiserror", "thiserror",
"winapi", "winapi",
"windows", "windows 0.52.0",
] ]
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@ -767,6 +917,12 @@ dependencies = [
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@ -780,13 +936,27 @@ dependencies = [
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"num-traits", "num-traits",
"rustc-hash", "rustc-hash 1.1.0",
"spirv", "spirv",
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@ -826,6 +996,27 @@ dependencies = [
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@ -1079,6 +1270,29 @@ dependencies = [
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@ -1302,18 +1531,64 @@ dependencies = [
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@ -1915,7 +2190,7 @@ dependencies = [
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"rustc-hash", "rustc-hash 1.1.0",
"smallvec", "smallvec",
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@ -2230,7 +2534,7 @@ dependencies = [
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"objc2-foundation", "objc2-foundation",

View File

@ -1,14 +1,22 @@
use crate::model::Color; use crate::model::Color;
use crate::peripherals::{Gfx, InputSignals, Pad, Touch}; use crate::peripherals::{Gfx, InputSignals, Pad, Touch, Audio, LoopMode};
use std::sync::Arc;
use crate::model::Sample;
/// PROMETEU "hardware lógico" (v0). /// PROMETEU "hardware lógico" (v0).
/// O Host alimenta INPUT SIGNALS e chama `step_frame()` em 60Hz. /// O Host alimenta INPUT SIGNALS e chama `step_frame()` em 60Hz.
pub struct Machine { pub struct Machine {
pub gfx: Gfx, pub gfx: Gfx,
pub audio: Audio,
pub pad: Pad, pub pad: Pad,
pub touch: Touch, pub touch: Touch,
pub frame_index: u64, pub frame_index: u64,
pub last_frame_cpu_time_us: u64, pub last_frame_cpu_time_us: u64,
// Assets de exemplo
pub sample_square: Option<Arc<Sample>>,
pub sample_kick: Option<Arc<Sample>>,
pub sample_snare: Option<Arc<Sample>>,
} }
impl Machine { impl Machine {
@ -18,10 +26,14 @@ impl Machine {
pub fn new() -> Self { pub fn new() -> Self {
Self { Self {
gfx: Gfx::new(Self::W, Self::H), gfx: Gfx::new(Self::W, Self::H),
audio: Audio::new(),
pad: Pad::default(), pad: Pad::default(),
touch: Touch::default(), touch: Touch::default(),
frame_index: 0, frame_index: 0,
last_frame_cpu_time_us: 0, last_frame_cpu_time_us: 0,
sample_square: None,
sample_kick: None,
sample_snare: None,
} }
} }
@ -40,6 +52,11 @@ impl Machine {
pub fn begin_frame(&mut self, signals: &InputSignals) { pub fn begin_frame(&mut self, signals: &InputSignals) {
self.frame_index += 1; self.frame_index += 1;
// Limpa comandos de áudio do frame anterior.
// Nota: O Host deve consumir esses comandos ANTES ou DURANTE o step_frame se quiser processá-los.
// Como o Host atual consome logo após o step_frame, limpar aqui no início do PRÓXIMO frame está correto.
self.audio.clear_commands();
// Flags transitórias do TOUCH devem durar 1 frame. // Flags transitórias do TOUCH devem durar 1 frame.
self.touch.begin_frame(signals); self.touch.begin_frame(signals);
@ -178,6 +195,91 @@ impl Machine {
// Se soltar o Start, podemos pausar algo futuramente // Se soltar o Start, podemos pausar algo futuramente
} }
// --- DEMO DE ÁUDIO ---
// Inicializa assets de áudio se não existirem
if self.sample_square.is_none() {
// 1. Onda Quadrada com Loop (Instrumento)
let freq = 440.0;
let sample_rate = 44100;
let period = (sample_rate as f32 / freq) as usize;
let mut data = Vec::with_capacity(period);
for i in 0..period {
data.push(if i < period / 2 { 4000 } else { -4000 });
}
self.sample_square = Some(Arc::new(Sample::new(sample_rate, data).with_loop(0, period as u32)));
// 2. "Kick" simples (Pitch descent)
let mut kick_data = Vec::new();
for i in 0..4000 {
let t = i as f32 / 4000.0;
let f = 100.0 * (1.0 - t * 0.9);
let val = (i as f32 * f * 2.0 * std::f32::consts::PI / 44100.0).sin();
kick_data.push((val * 12000.0 * (1.0 - t)) as i16);
}
self.sample_kick = Some(Arc::new(Sample::new(44100, kick_data)));
// 3. "Snare" simples (White noise)
let mut snare_data = Vec::new();
for i in 0..3000 {
let t = i as f32 / 3000.0;
let noise = Self::rand_f32(i as u32) * 2.0 - 1.0;
snare_data.push((noise * 8000.0 * (1.0 - t)) as i16);
}
self.sample_snare = Some(Arc::new(Sample::new(44100, snare_data)));
}
// --- SEQUENCER SIMPLES (60Hz) ---
let bpm = 125;
let frames_per_beat = (60 * 60) / bpm;
let frames_per_step = frames_per_beat / 4; // 16th notes
let step = (self.frame_index / frames_per_step) % 16;
let is_new_step = self.frame_index % frames_per_step == 0;
if is_new_step {
// Bassline (Square)
// Notas: C-2, C-2, Eb2, F-2, C-2, C-2, G-2, Bb2...
let melody = [
36, 36, 39, 41,
36, 36, 43, 46,
36, 36, 39, 41,
34, 35, 36, 0,
];
let note = melody[step as usize];
if note > 0 {
// Cálculo de pitch otimizado (tabela simples ou aproximação rápida se necessário,
// mas powf uma vez por step está ok. O problema é se fosse todo frame)
let freq = 440.0 * 2.0f64.powf((note as f64 - 69.0) / 12.0);
let pitch = freq / 440.0;
if let Some(s) = &self.sample_square {
self.audio.play(s.clone(), 0, 160, 100, pitch, 0, LoopMode::On);
}
}
// Drums
let kick_pattern = 0b0101100100011001u16; // Invertido para facilitar bitshift
let snare_pattern = 0b0001000000001000u16;
if (kick_pattern >> step) & 1 == 1 {
if let Some(s) = &self.sample_kick {
self.audio.play(s.clone(), 1, 255, 127, 1.0, 1, LoopMode::Off);
}
}
if (snare_pattern >> step) & 1 == 1 {
if let Some(s) = &self.sample_snare {
self.audio.play(s.clone(), 2, 140, 150, 1.0, 1, LoopMode::Off);
}
}
}
// Toca um "beep" extra se apertar A (mantendo interatividade)
if self.pad.a.pressed {
if let Some(s) = &self.sample_square {
self.audio.play(s.clone(), 3, 255, 60, 2.0, 10, LoopMode::Off);
}
}
// Post-FX Fade Pulsante // Post-FX Fade Pulsante
let pulse = (self.frame_index / 4) % 64; let pulse = (self.frame_index / 4) % 64;
let level = if pulse > 31 { 63 - pulse } else { pulse }; let level = if pulse > 31 { 63 - pulse } else { pulse };
@ -190,4 +292,15 @@ impl Machine {
pub fn end_frame(&mut self) { pub fn end_frame(&mut self) {
self.gfx.present(); self.gfx.present();
} }
/// Helper para noise determinístico
fn rand_f32(seed: u32) -> f32 {
let mut x = seed.wrapping_add(0x9E3779B9);
x = x ^ (x >> 16);
x = x.wrapping_mul(0x85EBCA6B);
x = x ^ (x >> 13);
x = x.wrapping_mul(0xC2B2AE35);
x = x ^ (x >> 16);
(x as f32) / (u32::MAX as f32)
}
} }

View File

@ -4,6 +4,7 @@ mod tile;
mod tile_layer; mod tile_layer;
mod tile_bank; mod tile_bank;
mod sprite; mod sprite;
mod sample;
pub use button::Button; pub use button::Button;
pub use color::Color; pub use color::Color;
@ -11,3 +12,4 @@ pub use tile::Tile;
pub use tile_bank::{TileBank, TileSize}; pub use tile_bank::{TileBank, TileSize};
pub use tile_layer::{HudTileLayer, ScrollableTileLayer, TileMap}; pub use tile_layer::{HudTileLayer, ScrollableTileLayer, TileMap};
pub use sprite::Sprite; pub use sprite::Sprite;
pub use sample::Sample;

View File

@ -0,0 +1,27 @@
pub struct Sample {
pub sample_rate: u32,
pub data: Vec<i16>,
pub loop_start: Option<u32>,
pub loop_end: Option<u32>,
}
impl Sample {
pub fn new(sample_rate: u32, data: Vec<i16>) -> Self {
Self {
sample_rate,
data,
loop_start: None,
loop_end: None,
}
}
pub fn with_loop(mut self, start: u32, end: u32) -> Self {
self.loop_start = Some(start);
self.loop_end = Some(end);
self
}
pub fn frames_len(&self) -> usize {
self.data.len()
}
}

View File

@ -0,0 +1,127 @@
use crate::model::Sample;
use std::sync::Arc;
pub const MAX_CHANNELS: usize = 16;
pub const OUTPUT_SAMPLE_RATE: u32 = 48000;
#[derive(Clone, Copy, Debug, PartialEq)]
pub enum LoopMode {
Off,
On,
}
pub struct Channel {
pub sample: Option<Arc<Sample>>,
pub pos: f64,
pub pitch: f64,
pub volume: u8, // 0..255
pub pan: u8, // 0..255
pub loop_mode: LoopMode,
pub priority: u8,
}
impl Default for Channel {
fn default() -> Self {
Self {
sample: None,
pos: 0.0,
pitch: 1.0,
volume: 255,
pan: 127,
loop_mode: LoopMode::Off,
priority: 0,
}
}
}
pub enum AudioCommand {
Play {
sample: Arc<Sample>,
voice_id: usize,
volume: u8,
pan: u8,
pitch: f64,
priority: u8,
loop_mode: LoopMode,
},
Stop {
voice_id: usize,
},
SetVolume {
voice_id: usize,
volume: u8,
},
SetPan {
voice_id: usize,
pan: u8,
},
SetPitch {
voice_id: usize,
pitch: f64,
},
}
pub struct Audio {
pub voices: [Channel; MAX_CHANNELS],
pub commands: Vec<AudioCommand>,
}
impl Audio {
pub fn new() -> Self {
Self {
voices: Default::default(),
commands: Vec::new(),
}
}
pub fn play(&mut self, sample: Arc<Sample>, voice_id: usize, volume: u8, pan: u8, pitch: f64, priority: u8, loop_mode: LoopMode) {
if voice_id < MAX_CHANNELS {
self.commands.push(AudioCommand::Play {
sample,
voice_id,
volume,
pan,
pitch,
priority,
loop_mode,
});
}
}
pub fn stop(&mut self, voice_id: usize) {
if voice_id < MAX_CHANNELS {
self.commands.push(AudioCommand::Stop { voice_id });
}
}
pub fn set_volume(&mut self, voice_id: usize, volume: u8) {
if voice_id < MAX_CHANNELS {
self.commands.push(AudioCommand::SetVolume { voice_id, volume });
}
}
pub fn set_pan(&mut self, voice_id: usize, pan: u8) {
if voice_id < MAX_CHANNELS {
self.commands.push(AudioCommand::SetPan { voice_id, pan });
}
}
pub fn set_pitch(&mut self, voice_id: usize, pitch: f64) {
if voice_id < MAX_CHANNELS {
self.commands.push(AudioCommand::SetPitch { voice_id, pitch });
}
}
pub fn is_playing(&self, voice_id: usize) -> bool {
if voice_id < MAX_CHANNELS {
self.voices[voice_id].sample.is_some()
} else {
false
}
}
/// Limpa a fila de comandos. O Host deve consumir isso a cada frame.
pub fn clear_commands(&mut self) {
self.commands.clear();
}
}

View File

@ -30,6 +30,9 @@ pub struct Gfx {
pub scene_fade_color: Color, pub scene_fade_color: Color,
pub hud_fade_level: u8, // 0..31 pub hud_fade_level: u8, // 0..31
pub hud_fade_color: Color, pub hud_fade_color: Color,
// Cache de prioridades para evitar alocações por frame
priority_buckets: [Vec<usize>; 5],
} }
impl Gfx { impl Gfx {
@ -65,6 +68,13 @@ impl Gfx {
scene_fade_color: Color::BLACK, scene_fade_color: Color::BLACK,
hud_fade_level: 31, hud_fade_level: 31,
hud_fade_color: Color::BLACK, hud_fade_color: Color::BLACK,
priority_buckets: [
Vec::with_capacity(128),
Vec::with_capacity(128),
Vec::with_capacity(128),
Vec::with_capacity(128),
Vec::with_capacity(128),
],
} }
} }
@ -125,33 +135,29 @@ impl Gfx {
/// Segue a ordem de prioridade do manual (Capítulo 4.11). /// Segue a ordem de prioridade do manual (Capítulo 4.11).
pub fn render_all(&mut self) { pub fn render_all(&mut self) {
// 0. Fase de Preparação: Organiza quem deve ser desenhado em cada camada // 0. Fase de Preparação: Organiza quem deve ser desenhado em cada camada
// Criamos listas de índices para evitar percorrer os 512 sprites 5 vezes // Limpa os buckets sem desalocar memória
let mut priority_buckets: [Vec<usize>; 5] = [ for bucket in self.priority_buckets.iter_mut() {
Vec::with_capacity(128), bucket.clear();
Vec::with_capacity(128), }
Vec::with_capacity(128),
Vec::with_capacity(128),
Vec::with_capacity(128),
];
for (idx, sprite) in self.sprites.iter().enumerate() { for (idx, sprite) in self.sprites.iter().enumerate() {
if sprite.active && sprite.priority < 5 { if sprite.active && sprite.priority < 5 {
priority_buckets[sprite.priority as usize].push(idx); self.priority_buckets[sprite.priority as usize].push(idx);
} }
} }
// 1. Sprites de prioridade 0 (Atrás da Layer 0 - o fundo do fundo) // 1. Sprites de prioridade 0 (Atrás da Layer 0 - o fundo do fundo)
self.draw_bucket(&priority_buckets[0]); Self::draw_bucket_on_buffer(&mut self.back, self.w, self.h, &self.priority_buckets[0], &self.sprites, &self.banks);
for i in 0..self.layers.len() { for i in 0..self.layers.len() {
// 2. Layers de jogo (0 a 3) // 2. Layers de jogo (0 a 3)
self.render_layer(i); let bank_id = self.layers[i].bank_id as usize;
if let Some(Some(bank)) = self.banks.get(bank_id) {
Self::draw_tile_map(&mut self.back, self.w, self.h, &self.layers[i].map, bank, self.layers[i].scroll_x, self.layers[i].scroll_y);
}
// 3. Sprites de acordo com prioridade // 3. Sprites de acordo com prioridade
// i=0 desenha sprites priority 1 (sobre layer 0) Self::draw_bucket_on_buffer(&mut self.back, self.w, self.h, &self.priority_buckets[i + 1], &self.sprites, &self.banks);
// i=1 desenha sprites priority 2 (sobre layer 1)
// i=2 desenha sprites priority 3 (sobre layer 2)
// i=3 desenha sprites priority 4 (sobre layer 3 - à frente de tudo)
self.draw_bucket(&priority_buckets[i + 1]);
} }
// 4. Aplica Scene Fade (Afeta tudo desenhado até agora) // 4. Aplica Scene Fade (Afeta tudo desenhado até agora)
@ -262,15 +268,20 @@ impl Gfx {
} }
} }
fn draw_bucket(&mut self, bucket: &[usize]) { fn draw_bucket_on_buffer(
back: &mut [u16],
screen_w: usize,
screen_h: usize,
bucket: &[usize],
sprites: &[Sprite],
banks: &[Option<TileBank>],
) {
for &idx in bucket { for &idx in bucket {
let sprite = &self.sprites[idx]; let s = &sprites[idx];
let bank = match self.banks.get(sprite.bank_id as usize) { let bank_id = s.bank_id as usize;
Some(Some(b)) => b, if let Some(Some(bank)) = banks.get(bank_id) {
_ => continue, Self::draw_sprite_pixel_by_pixel(back, screen_w, screen_h, s, bank);
}; }
Self::draw_sprite_pixel_by_pixel(&mut self.back, self.w, self.h, sprite, bank);
} }
} }

View File

@ -2,9 +2,11 @@ mod gfx;
mod pad; mod pad;
mod touch; mod touch;
mod input_signal; mod input_signal;
mod audio;
pub use gfx::Gfx; pub use gfx::Gfx;
pub use gfx::BlendMode; pub use gfx::BlendMode;
pub use input_signal::InputSignals; pub use input_signal::InputSignals;
pub use pad::Pad; pub use pad::Pad;
pub use touch::Touch; pub use touch::Touch;
pub use audio::{Audio, Channel, AudioCommand, LoopMode, MAX_CHANNELS, OUTPUT_SAMPLE_RATE};

View File

@ -6,4 +6,6 @@ edition = "2021"
[dependencies] [dependencies]
prometeu-core = { path = "../core" } prometeu-core = { path = "../core" }
winit = "0.30.12" winit = "0.30.12"
pixels = "0.15.0" pixels = "0.15.0"
cpal = "0.15.3"
ringbuf = "0.4.7"

View File

@ -0,0 +1,132 @@
use prometeu_core::peripherals::{AudioCommand, Channel, LoopMode, MAX_CHANNELS, OUTPUT_SAMPLE_RATE};
use std::time::Duration;
pub struct AudioMixer {
voices: [Channel; MAX_CHANNELS],
pub last_processing_time: Duration,
}
impl AudioMixer {
pub fn new() -> Self {
Self {
voices: Default::default(),
last_processing_time: Duration::ZERO,
}
}
pub fn process_command(&mut self, cmd: AudioCommand) {
match cmd {
AudioCommand::Play {
sample,
voice_id,
volume,
pan,
pitch,
priority,
loop_mode,
} => {
if voice_id < MAX_CHANNELS {
self.voices[voice_id] = Channel {
sample: Some(sample),
pos: 0.0,
pitch,
volume,
pan,
loop_mode,
priority,
};
}
}
AudioCommand::Stop { voice_id } => {
if voice_id < MAX_CHANNELS {
self.voices[voice_id].sample = None;
}
}
AudioCommand::SetVolume { voice_id, volume } => {
if voice_id < MAX_CHANNELS {
self.voices[voice_id].volume = volume;
}
}
AudioCommand::SetPan { voice_id, pan } => {
if voice_id < MAX_CHANNELS {
self.voices[voice_id].pan = pan;
}
}
AudioCommand::SetPitch { voice_id, pitch } => {
if voice_id < MAX_CHANNELS {
self.voices[voice_id].pitch = pitch;
}
}
}
}
pub fn fill_buffer(&mut self, buffer: &mut [f32]) {
let start = std::time::Instant::now();
// Zera o buffer (estéreo)
for sample in buffer.iter_mut() {
*sample = 0.0;
}
for voice in self.voices.iter_mut() {
let sample_data = match &voice.sample {
Some(s) => s,
None => continue,
};
let pitch_ratio = sample_data.sample_rate as f64 / OUTPUT_SAMPLE_RATE as f64;
let step = voice.pitch * pitch_ratio;
let vol_f = voice.volume as f32 / 255.0;
let pan_f = voice.pan as f32 / 255.0;
let vol_l = vol_f * (1.0 - pan_f).sqrt();
let vol_r = vol_f * pan_f.sqrt();
for frame in buffer.chunks_exact_mut(2) {
let pos_int = voice.pos as usize;
let pos_fract = voice.pos - pos_int as f64;
if pos_int >= sample_data.data.len() {
voice.sample = None;
break;
}
// Interpolação Linear
let s1 = sample_data.data[pos_int] as f32 / 32768.0;
let s2 = if pos_int + 1 < sample_data.data.len() {
sample_data.data[pos_int + 1] as f32 / 32768.0
} else if voice.loop_mode == LoopMode::On {
let loop_start = sample_data.loop_start.unwrap_or(0) as usize;
sample_data.data[loop_start] as f32 / 32768.0
} else {
0.0
};
let sample_val = s1 + (s2 - s1) * pos_fract as f32;
frame[0] += sample_val * vol_l;
frame[1] += sample_val * vol_r;
voice.pos += step;
let end_pos = sample_data.loop_end.map(|e| e as f64).unwrap_or(sample_data.data.len() as f64);
if voice.pos >= end_pos {
if voice.loop_mode == LoopMode::On {
let loop_start = sample_data.loop_start.unwrap_or(0) as f64;
voice.pos = loop_start + (voice.pos - end_pos);
} else {
voice.sample = None;
break;
}
}
}
}
// Clamp final para evitar clipping (opcional se usarmos f32, mas bom para fidelidade)
for sample in buffer.iter_mut() {
*sample = sample.clamp(-1.0, 1.0);
}
self.last_processing_time = start.elapsed();
}
}

View File

@ -1,8 +1,15 @@
use pixels::{Pixels, SurfaceTexture};
use std::time::{Duration, Instant}; use std::time::{Duration, Instant};
use pixels::{Pixels, SurfaceTexture}; mod audio_mixer;
use prometeu_core::peripherals::InputSignals;
use audio_mixer::AudioMixer;
use cpal::traits::{DeviceTrait, HostTrait, StreamTrait};
use prometeu_core::peripherals::{AudioCommand, InputSignals, OUTPUT_SAMPLE_RATE};
use prometeu_core::Machine; use prometeu_core::Machine;
use ringbuf::traits::{Consumer, Producer, Split};
use ringbuf::HeapRb;
use std::sync::Arc;
use winit::{ use winit::{
application::ApplicationHandler, application::ApplicationHandler,
dpi::LogicalSize, dpi::LogicalSize,
@ -35,6 +42,12 @@ struct PrometeuApp {
last_stats_update: Instant, last_stats_update: Instant,
frames_since_last_update: u64, frames_since_last_update: u64,
audio_load_accum_us: u64,
audio_load_samples: u64,
audio_perf_consumer: Option<ringbuf::wrap::CachingCons<Arc<HeapRb<u64>>>>,
audio_producer: Option<ringbuf::wrap::CachingProd<Arc<HeapRb<AudioCommand>>>>,
_audio_stream: Option<cpal::Stream>,
} }
impl PrometeuApp { impl PrometeuApp {
@ -55,9 +68,61 @@ impl PrometeuApp {
last_stats_update: Instant::now(), last_stats_update: Instant::now(),
frames_since_last_update: 0, frames_since_last_update: 0,
audio_load_accum_us: 0,
audio_load_samples: 0,
audio_perf_consumer: None,
audio_producer: None,
_audio_stream: None,
} }
} }
fn init_audio(&mut self) {
let host = cpal::default_host();
let device = host
.default_output_device()
.expect("no output device available");
let config = cpal::StreamConfig {
channels: 2,
sample_rate: cpal::SampleRate(OUTPUT_SAMPLE_RATE),
buffer_size: cpal::BufferSize::Default,
};
let rb = HeapRb::<AudioCommand>::new(1024);
let (prod, mut cons) = rb.split();
self.audio_producer = Some(prod);
let mut mixer = AudioMixer::new();
// Para passar dados de performance da thread de áudio para a principal
let audio_perf_rb = HeapRb::<u64>::new(64);
let (mut perf_prod, perf_cons) = audio_perf_rb.split();
let stream = device
.build_output_stream(
&config,
move |data: &mut [f32], _: &cpal::OutputCallbackInfo| {
// Consome comandos da ringbuffer
while let Some(cmd) = cons.try_pop() {
mixer.process_command(cmd);
}
// Mixa áudio
mixer.fill_buffer(data);
// Envia tempo de processamento em microssegundos
let _ = perf_prod.try_push(mixer.last_processing_time.as_micros() as u64);
},
|err| eprintln!("audio stream error: {}", err),
None,
)
.expect("failed to build audio stream");
stream.play().expect("failed to play audio stream");
self._audio_stream = Some(stream);
self.audio_perf_consumer = Some(perf_cons);
}
fn window(&self) -> &'static Window { fn window(&self) -> &'static Window {
self.window.expect("window not created yet") self.window.expect("window not created yet")
} }
@ -82,7 +147,7 @@ impl PrometeuApp {
impl ApplicationHandler for PrometeuApp { impl ApplicationHandler for PrometeuApp {
fn resumed(&mut self, event_loop: &ActiveEventLoop) { fn resumed(&mut self, event_loop: &ActiveEventLoop) {
let attrs = WindowAttributes::default() let attrs = WindowAttributes::default()
.with_title(format!("PROMETEU | GFX: {:.1} KB | FPS: {:.1} | Frame: {}", 0.0, 0.0, 0)) .with_title(format!("PROMETEU | GFX: {:.1} KB | FPS: {:.1} | Load: {}% | Frame: {}", 0.0, 0.0, 0.0, 0))
.with_inner_size(LogicalSize::new(960.0, 540.0)) .with_inner_size(LogicalSize::new(960.0, 540.0))
.with_min_inner_size(LogicalSize::new(320.0, 180.0)); .with_min_inner_size(LogicalSize::new(320.0, 180.0));
@ -102,6 +167,8 @@ impl ApplicationHandler for PrometeuApp {
self.pixels = Some(pixels); self.pixels = Some(pixels);
self.init_audio();
event_loop.set_control_flow(ControlFlow::Poll); event_loop.set_control_flow(ControlFlow::Poll);
} }
@ -202,10 +269,26 @@ impl ApplicationHandler for PrometeuApp {
// 🔥 O coração do determinismo: consome o tempo em fatias exatas de 60Hz // 🔥 O coração do determinismo: consome o tempo em fatias exatas de 60Hz
while self.accumulator >= self.frame_target_dt { while self.accumulator >= self.frame_target_dt {
self.machine.step_frame(&self.input_signals); self.machine.step_frame(&self.input_signals);
// Envia comandos de áudio gerados neste frame para a thread de áudio
if let Some(producer) = &mut self.audio_producer {
for cmd in self.machine.audio.commands.drain(..) {
let _ = producer.try_push(cmd);
}
}
self.accumulator -= self.frame_target_dt; self.accumulator -= self.frame_target_dt;
self.frames_since_last_update += 1; self.frames_since_last_update += 1;
} }
// Drena tempos de performance do áudio
if let Some(cons) = &mut self.audio_perf_consumer {
while let Some(us) = cons.try_pop() {
self.audio_load_accum_us += us;
self.audio_load_samples += 1;
}
}
// Atualiza estatísticas a cada 1 segundo real // Atualiza estatísticas a cada 1 segundo real
let stats_elapsed = now.duration_since(self.last_stats_update); let stats_elapsed = now.duration_since(self.last_stats_update);
if stats_elapsed >= Duration::from_secs(1) { if stats_elapsed >= Duration::from_secs(1) {
@ -214,17 +297,26 @@ impl ApplicationHandler for PrometeuApp {
let kb = self.machine.gfx.memory_usage_bytes() as f64 / 1024.0; let kb = self.machine.gfx.memory_usage_bytes() as f64 / 1024.0;
let frame_budget_us = 16666.0; let frame_budget_us = 16666.0;
let cpu_load = (self.machine.last_frame_cpu_time_us as f64 / frame_budget_us) * 100.0; let cpu_load_core = (self.machine.last_frame_cpu_time_us as f64 / frame_budget_us) * 100.0;
let cpu_load_audio = if self.audio_load_samples > 0 {
// O load real é (tempo total processando) / (tempo total de parede).
(self.audio_load_accum_us as f64 / stats_elapsed.as_micros() as f64) * 100.0
} else {
0.0
};
let title = format!( let title = format!(
"PROMETEU | GFX: {:.1} KB | FPS: {:.1} | Load: {:.1}% | Frame: {}", "PROMETEU | GFX: {:.1} KB | FPS: {:.1} | Load: {:.1}% (C) + {:.1}% (A) | Frame: {}",
kb, fps, cpu_load, self.machine.frame_index kb, fps, cpu_load_core, cpu_load_audio, self.machine.frame_index
); );
window.set_title(&title); window.set_title(&title);
} }
self.last_stats_update = now; self.last_stats_update = now;
self.frames_since_last_update = 0; self.frames_since_last_update = 0;
self.audio_load_accum_us = 0;
self.audio_load_samples = 0;
} }
self.request_redraw(); self.request_redraw();

View File

@ -101,9 +101,9 @@ O mundo gráfico é composto por:
--- ---
## 5. Modelo Interno de uma Game Layer ## 5. Modelo Interno de uma Tile Layer
Uma Game Layer **não é um bitmap de pixels**. Uma Tile Layer **não é um bitmap de pixels**.
Ela é composta por: Ela é composta por:
- Um **Tilemap lógico** (índices de tiles) - Um **Tilemap lógico** (índices de tiles)
@ -190,7 +190,7 @@ Acesso:
Para cada frame: Para cada frame:
1. Para cada Game Layer, em ordem: 1. Para cada Tile Layer, em ordem:
- Rasterizar tiles visíveis do cache - Rasterizar tiles visíveis do cache
- Aplicar scroll, flip e transparência - Aplicar scroll, flip e transparência
- Escrever no back buffer - Escrever no back buffer
@ -211,10 +211,10 @@ Para cada frame:
Ordem base: Ordem base:
1. Game Layer 0 1. Tile Layer 0
2. Game Layer 1 2. Tile Layer 1
3. Game Layer 2 3. Tile Layer 2
4. Game Layer 3 4. Tile Layer 3
5. Sprites (por prioridade entre layers) 5. Sprites (por prioridade entre layers)
6. HUD Layer 6. HUD Layer