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Merge pull request #235 from gwilymk/print-text-in-sound-examples

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Print text in sound examples
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Gwilym Kuiper 2022-06-16 21:53:00 +01:00 committed by GitHub
parent 3c7d97e7f4 21b8f12c03
commit 0dc6ba48c3
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GPG key ID: 4AEE18F83AFDEB23
2 changed files with 126 additions and 20 deletions
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77
agb/examples/mixer_32768.rs
View file

@ -1,47 +1,100 @@
#![no_std]
#![no_main]
use agb::sound::mixer::SoundChannel;
use agb::{include_wav, Gba};
use agb::{
display::{
tiled::{RegularBackgroundSize, RegularMap, TileSetting, VRamManager},
Font, Priority,
},
include_font, include_wav,
sound::mixer::SoundChannel,
Gba,
};
use core::fmt::Write;
// Music - "Crazy glue" by Josh Woodward, free download at http://joshwoodward.com
const LET_IT_IN: &[u8] = include_wav!("examples/JoshWoodward-CrazyGlue.wav");
const CRAZY_GLUE: &[u8] = include_wav!("examples/JoshWoodward-CrazyGlue.wav");
const FONT: Font = include_font!("examples/font/yoster.ttf", 12);
#[agb::entry]
fn main(mut gba: Gba) -> ! {
let vblank_provider = agb::interrupt::VBlank::get();
let (gfx, mut vram) = gba.display.video.tiled0();
let mut bg = gfx.background(Priority::P0, RegularBackgroundSize::Background32x32);
init_background(&mut bg, &mut vram);
let mut writer = FONT.render_text((0u16, 3u16).into(), 1, 0, &mut bg, &mut vram);
writeln!(&mut writer, "Crazy Glue by Josh Woodward").unwrap();
writer.commit();
bg.commit(&mut vram);
bg.show();
let timer_controller = gba.timers.timers();
let mut timer = timer_controller.timer2;
timer.set_enabled(true);
let mut mixer = gba.mixer.mixer();
mixer.enable();
let _interrupt = mixer.setup_interrupt_handler();
let mut channel = SoundChannel::new(LET_IT_IN);
let mut channel = SoundChannel::new(CRAZY_GLUE);
channel.stereo();
mixer.play_sound(channel).unwrap();
let _interrupt = mixer.setup_interrupt_handler();
let mut frame_counter = 0i32;
let mut has_written_frame_time = false;
loop {
vblank_provider.wait_for_vblank();
bg.commit(&mut vram);
let before_mixing_cycles = timer.value();
mixer.frame();
let after_mixing_cycles = timer.value();
frame_counter = frame_counter.wrapping_add(1);
if frame_counter % 128 == 0 {
if frame_counter % 128 == 0 && !has_written_frame_time {
let total_cycles = after_mixing_cycles.wrapping_sub(before_mixing_cycles) as u32;
let percent = (total_cycles * 100) / 280896;
agb::println!(
"Took {} cycles to calculate mixer ~= {}% of total frame",
total_cycles,
percent
);
let mut writer = FONT.render_text((0u16, 6u16).into(), 2, 0, &mut bg, &mut vram);
writeln!(&mut writer, "{total_cycles} cycles").unwrap();
writeln!(&mut writer, "{percent} percent").unwrap();
writer.commit();
has_written_frame_time = true;
}
}
}
fn init_background(bg: &mut RegularMap, vram: &mut VRamManager) {
let background_tile = vram.new_dynamic_tile().fill_with(0);
vram.set_background_palette_raw(&[
0x0000, 0x0ff0, 0x00ff, 0xf00f, 0xf0f0, 0x0f0f, 0xaaaa, 0x5555, 0x0000, 0x0000, 0x0000,
0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
]);
for y in 0..20u16 {
for x in 0..30u16 {
bg.set_tile(
vram,
(x, y).into(),
&background_tile.tile_set(),
TileSetting::from_raw(background_tile.tile_index()),
);
}
}
vram.remove_dynamic_tile(background_tile);
}

69
agb/examples/stereo_sound.rs
View file

@ -1,16 +1,41 @@
#![no_std]
#![no_main]
use agb::sound::mixer::SoundChannel;
use agb::{include_wav, Gba};
use agb::{
display::{
tiled::{RegularBackgroundSize, RegularMap, TileSetting, VRamManager},
Font, Priority,
},
include_font, include_wav,
sound::mixer::SoundChannel,
Gba,
};
use core::fmt::Write;
// Music - "Let it in" by Josh Woodward, free download at http://joshwoodward.com
const LET_IT_IN: &[u8] = include_wav!("examples/JoshWoodward-LetItIn.wav");
const FONT: Font = include_font!("examples/font/yoster.ttf", 12);
#[agb::entry]
fn main(mut gba: Gba) -> ! {
let vblank_provider = agb::interrupt::VBlank::get();
let (gfx, mut vram) = gba.display.video.tiled0();
let mut bg = gfx.background(Priority::P0, RegularBackgroundSize::Background32x32);
init_background(&mut bg, &mut vram);
let mut writer = FONT.render_text((0u16, 3u16).into(), 1, 0, &mut bg, &mut vram);
writeln!(&mut writer, "Let it in by Josh Woodward").unwrap();
writer.commit();
bg.commit(&mut vram);
bg.show();
let timer_controller = gba.timers.timers();
let mut timer = timer_controller.timer2;
timer.set_enabled(true);
@ -23,8 +48,11 @@ fn main(mut gba: Gba) -> ! {
mixer.play_sound(channel).unwrap();
let mut frame_counter = 0i32;
let mut has_written_frame_time = false;
loop {
vblank_provider.wait_for_vblank();
bg.commit(&mut vram);
let before_mixing_cycles = timer.value();
mixer.after_vblank();
mixer.frame();
@ -32,15 +60,40 @@ fn main(mut gba: Gba) -> ! {
frame_counter = frame_counter.wrapping_add(1);
if frame_counter % 128 == 0 {
if frame_counter % 128 == 0 && !has_written_frame_time {
let total_cycles = after_mixing_cycles.wrapping_sub(before_mixing_cycles) as u32;
let percent = (total_cycles * 100) / 280896;
agb::println!(
"Took {} cycles to calculate mixer ~= {}% of total frame",
total_cycles,
percent
);
let mut writer = FONT.render_text((0u16, 6u16).into(), 2, 0, &mut bg, &mut vram);
writeln!(&mut writer, "{total_cycles} cycles").unwrap();
writeln!(&mut writer, "{percent} percent").unwrap();
writer.commit();
has_written_frame_time = true;
}
}
}
fn init_background(bg: &mut RegularMap, vram: &mut VRamManager) {
let background_tile = vram.new_dynamic_tile().fill_with(0);
vram.set_background_palette_raw(&[
0x0000, 0x0ff0, 0x00ff, 0xf00f, 0xf0f0, 0x0f0f, 0xaaaa, 0x5555, 0x0000, 0x0000, 0x0000,
0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
]);
for y in 0..20u16 {
for x in 0..30u16 {
bg.set_tile(
vram,
(x, y).into(),
&background_tile.tile_set(),
TileSetting::from_raw(background_tile.tile_index()),
);
}
}
vram.remove_dynamic_tile(background_tile);
}