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thejpsterthejpster
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Add an ANSI format start-up logo.
Also make the boot-up much faster - if you want to read the details, press Escape to pause the boot. And we now set the same default mode as the OS, so no monitor resync is required between the BIOS and the OS.
1 parent 7136644 commit 95d5112

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5 files changed

+419
-61
lines changed

5 files changed

+419
-61
lines changed

‎Cargo.toml‎

Lines changed: 3 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -61,6 +61,9 @@ embedded-sdmmc = { version = "0.5", default-features = false, features = [
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"defmt-log"
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] }
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64+
[build-dependencies]
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neotron-common-bios = "0.8.0"
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[[bin]]
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name = "neotron-pico-bios"
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test = false

‎build.rs‎

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Original file line numberDiff line numberDiff line change
@@ -13,6 +13,8 @@ use std::fs::File;
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use std::io::Write;
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use std::path::PathBuf;
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use neotron_common_bios::video::{Attr, TextBackgroundColour, TextForegroundColour};
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1618
fn main() {
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// Put `memory.x` in our output directory and ensure it's
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// on the linker search path.
@@ -55,4 +57,343 @@ fn main() {
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5658
// Write the file
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std::fs::write(out.join("version.txt"), output).expect("writing version file");
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let logo = std::fs::read_to_string("src/logo.ansi").expect("Can't open logo file");
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let mut output = Vec::new();
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let mut iter = logo.chars();
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let mut attr = Attr::new(
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TextForegroundColour::WHITE,
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TextBackgroundColour::BLACK,
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false,
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);
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let mut width = 0;
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loop {
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let Some(ch) = iter.next() else {
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break;
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};
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if ch == '\u{001b}' {
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// ANSI escape
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if iter.next() == Some('[') {
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// CSI
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let mut bright = false;
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let mut accumulator = 0;
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loop {
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let next_ch = iter.next();
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match (next_ch, accumulator) {
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// Bright
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(Some(';' | 'm'), 1) => {
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bright = true;
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accumulator = 0;
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}
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// Background
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(Some(';' | 'm'), 40) => {
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attr.set_bg(TextBackgroundColour::BLACK);
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accumulator = 0;
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}
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(Some(';' | 'm'), 41) => {
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attr.set_bg(TextBackgroundColour::DARK_RED);
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accumulator = 0;
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}
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(Some(';' | 'm'), 42) => {
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attr.set_bg(TextBackgroundColour::DARK_GREEN);
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accumulator = 0;
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}
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(Some(';' | 'm'), 43) => {
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attr.set_bg(TextBackgroundColour::YELLOW);
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accumulator = 0;
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}
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(Some(';' | 'm'), 44) => {
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attr.set_bg(TextBackgroundColour::BLUE);
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accumulator = 0;
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}
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(Some(';' | 'm'), 45) => {
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attr.set_bg(TextBackgroundColour::DARK_MAGENTA);
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accumulator = 0;
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}
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(Some(';' | 'm'), 46) => {
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attr.set_bg(TextBackgroundColour::DARK_CYAN);
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accumulator = 0;
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}
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(Some(';' | 'm'), 49) => {
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// Default
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attr.set_bg(TextBackgroundColour::BLACK);
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accumulator = 0;
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}
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// Foreground
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(Some(';' | 'm'), 30) => {
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attr.set_fg(TextForegroundColour::BLACK);
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accumulator = 0;
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}
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(Some(';' | 'm'), 31) => {
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attr.set_fg(TextForegroundColour::DARK_RED);
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accumulator = 0;
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}
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(Some(';' | 'm'), 32) => {
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attr.set_fg(TextForegroundColour::DARK_GREEN);
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accumulator = 0;
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}
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(Some(';' | 'm'), 33) => {
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attr.set_fg(TextForegroundColour::YELLOW);
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accumulator = 0;
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}
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(Some(';' | 'm'), 34) => {
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attr.set_fg(TextForegroundColour::BLUE);
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accumulator = 0;
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}
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(Some(';' | 'm'), 35) => {
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attr.set_fg(TextForegroundColour::DARK_MAGENTA);
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accumulator = 0;
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}
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(Some(';' | 'm'), 36) => {
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attr.set_fg(TextForegroundColour::DARK_CYAN);
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accumulator = 0;
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}
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(Some(';' | 'm'), 37) => {
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attr.set_fg(TextForegroundColour::GREY);
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accumulator = 0;
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}
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(Some(';' | 'm'), 0) => {
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attr.set_fg(TextForegroundColour::GREY);
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attr.set_bg(TextBackgroundColour::BLACK);
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bright = false;
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accumulator = 0;
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}
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(Some('0'), _) => {
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accumulator *= 10;
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}
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(Some('1'), _) => {
167+
accumulator *= 10;
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accumulator += 1;
169+
}
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(Some('2'), _) => {
171+
accumulator *= 10;
172+
accumulator += 2;
173+
}
174+
(Some('3'), _) => {
175+
accumulator *= 10;
176+
accumulator += 3;
177+
}
178+
(Some('4'), _) => {
179+
accumulator *= 10;
180+
accumulator += 4;
181+
}
182+
(Some('5'), _) => {
183+
accumulator *= 10;
184+
accumulator += 5;
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}
186+
(Some('6'), _) => {
187+
accumulator *= 10;
188+
accumulator += 6;
189+
}
190+
(Some('7'), _) => {
191+
accumulator *= 10;
192+
accumulator += 7;
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}
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(Some('8'), _) => {
195+
accumulator *= 10;
196+
accumulator += 8;
197+
}
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(Some('9'), _) => {
199+
accumulator *= 10;
200+
accumulator += 9;
201+
}
202+
(code, acc) => {
203+
panic!(
204+
"Invalid ANSI sequence detected: code={:?}, acc={:?}",
205+
code, acc
206+
);
207+
}
208+
}
209+
if next_ch == Some('m') {
210+
// sequence is finished
211+
if bright {
212+
match attr.fg() {
213+
TextForegroundColour::DARK_RED => {
214+
attr.set_fg(TextForegroundColour::BRIGHT_RED);
215+
}
216+
TextForegroundColour::DARK_GREEN => {
217+
attr.set_fg(TextForegroundColour::BRIGHT_GREEN);
218+
}
219+
TextForegroundColour::YELLOW => {
220+
attr.set_fg(TextForegroundColour::BRIGHT_YELLOW);
221+
}
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TextForegroundColour::BLUE => {
223+
attr.set_fg(TextForegroundColour::BRIGHT_BLUE);
224+
}
225+
TextForegroundColour::DARK_MAGENTA => {
226+
attr.set_fg(TextForegroundColour::BRIGHT_MAGENTA);
227+
}
228+
TextForegroundColour::DARK_CYAN => {
229+
attr.set_fg(TextForegroundColour::BRIGHT_CYAN);
230+
}
231+
TextForegroundColour::GREY => {
232+
attr.set_fg(TextForegroundColour::WHITE);
233+
}
234+
_ => {
235+
// Do nothing
236+
}
237+
}
238+
}
239+
break;
240+
}
241+
}
242+
}
243+
} else if ch == '\n' {
244+
if width < 80 {
245+
// Only emit a new-line if we are not at the end of the line already
246+
output.push(attr.as_u8());
247+
output.push(b'\n');
248+
}
249+
width = 0;
250+
} else {
251+
width += 1;
252+
output.push(attr.as_u8());
253+
output.push(map_char_to_glyph(ch));
254+
};
255+
}
256+
std::fs::write(out.join("logo.bytes"), output).expect("writing logo file");
257+
}
258+
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/// Convert a Unicode Scalar Value to a font glyph.
260+
///
261+
/// Zero-width and modifier Unicode Scalar Values (e.g. `U+0301 COMBINING,
262+
/// ACCENT`) are not supported. Normalise your Unicode before calling
263+
/// this function.
264+
fn map_char_to_glyph(input: char) -> u8 {
265+
// This fixed table only works for the default font. When we support
266+
// changing font, we will need to plug-in a different table for each font.
267+
match input {
268+
'\u{0000}'..='\u{007F}' => input as u8,
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'\u{00A0}' => 255, // NBSP
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'\u{00A1}' => 173, // ¡
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'\u{00A2}' => 189, // ¢
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'\u{00A3}' => 156, // £
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'\u{00A4}' => 207, // ¤
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'\u{00A5}' => 190, // ¥
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'\u{00A6}' => 221, // ¦
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'\u{00A7}' => 245, // §
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'\u{00A8}' => 249, // ¨
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'\u{00A9}' => 184, // ©
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'\u{00AA}' => 166, // ª
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'\u{00AB}' => 174, // «
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'\u{00AC}' => 170, // ¬
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'\u{00AD}' => 240, // SHY
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'\u{00AE}' => 169, // ®
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'\u{00AF}' => 238, // ¯
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'\u{00B0}' => 248, // °
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'\u{00B1}' => 241, // ±
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'\u{00B2}' => 253, // ²
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'\u{00B3}' => 252, // ³
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'\u{00B4}' => 239, // ´
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'\u{00B5}' => 230, // µ
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'\u{00B6}' => 244, // ¶
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'\u{00B7}' => 250, // ·
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'\u{00B8}' => 247, // ¸
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'\u{00B9}' => 251, // ¹
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'\u{00BA}' => 167, // º
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'\u{00BB}' => 175, // »
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'\u{00BC}' => 172, // ¼
298+
'\u{00BD}' => 171, // ½
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'\u{00BE}' => 243, // ¾
300+
'\u{00BF}' => 168, // ¿
301+
'\u{00C0}' => 183, // À
302+
'\u{00C1}' => 181, // Á
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'\u{00C2}' => 182, // Â
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'\u{00C3}' => 199, // Ã
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'\u{00C4}' => 142, // Ä
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'\u{00C5}' => 143, // Å
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'\u{00C6}' => 146, // Æ
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'\u{00C7}' => 128, // Ç
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'\u{00C8}' => 212, // È
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'\u{00C9}' => 144, // É
311+
'\u{00CA}' => 210, // Ê
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'\u{00CB}' => 211, // Ë
313+
'\u{00CC}' => 222, // Ì
314+
'\u{00CD}' => 214, // Í
315+
'\u{00CE}' => 215, // Î
316+
'\u{00CF}' => 216, // Ï
317+
'\u{00D0}' => 209, // Ð
318+
'\u{00D1}' => 165, // Ñ
319+
'\u{00D2}' => 227, // Ò
320+
'\u{00D3}' => 224, // Ó
321+
'\u{00D4}' => 226, // Ô
322+
'\u{00D5}' => 229, // Õ
323+
'\u{00D6}' => 153, // Ö
324+
'\u{00D7}' => 158, // ×
325+
'\u{00D8}' => 157, // Ø
326+
'\u{00D9}' => 235, // Ù
327+
'\u{00DA}' => 233, // Ú
328+
'\u{00DB}' => 234, // Û
329+
'\u{00DC}' => 154, // Ü
330+
'\u{00DD}' => 237, // Ý
331+
'\u{00DE}' => 232, // Þ
332+
'\u{00DF}' => 225, // ß
333+
'\u{00E0}' => 133, // à
334+
'\u{00E1}' => 160, // á
335+
'\u{00E2}' => 131, // â
336+
'\u{00E3}' => 198, // ã
337+
'\u{00E4}' => 132, // ä
338+
'\u{00E5}' => 134, // å
339+
'\u{00E6}' => 145, // æ
340+
'\u{00E7}' => 135, // ç
341+
'\u{00E8}' => 138, // è
342+
'\u{00E9}' => 130, // é
343+
'\u{00EA}' => 136, // ê
344+
'\u{00EB}' => 137, // ë
345+
'\u{00EC}' => 141, // ì
346+
'\u{00ED}' => 161, // í
347+
'\u{00EE}' => 140, // î
348+
'\u{00EF}' => 139, // ï
349+
'\u{00F0}' => 208, // ð
350+
'\u{00F1}' => 164, // ñ
351+
'\u{00F2}' => 149, // ò
352+
'\u{00F3}' => 162, // ó
353+
'\u{00F4}' => 147, // ô
354+
'\u{00F5}' => 228, // õ
355+
'\u{00F6}' => 148, // ö
356+
'\u{00F7}' => 246, // ÷
357+
'\u{00F8}' => 155, // ø
358+
'\u{00F9}' => 151, // ù
359+
'\u{00FA}' => 163, // ú
360+
'\u{00FB}' => 150, // û
361+
'\u{00FC}' => 129, // ü
362+
'\u{00FD}' => 236, // ý
363+
'\u{00FE}' => 231, // þ
364+
'\u{00FF}' => 152, // ÿ
365+
'\u{0131}' => 213, // ı
366+
'\u{0192}' => 159, // ƒ
367+
'\u{2017}' => 242, // ‗
368+
'\u{2500}' => 196, // ─
369+
'\u{2502}' => 179, // │
370+
'\u{250C}' => 218, // ┌
371+
'\u{2510}' => 191, // ┐
372+
'\u{2514}' => 192, // └
373+
'\u{2518}' => 217, // ┘
374+
'\u{251C}' => 195, // ├
375+
'\u{2524}' => 180, // ┤
376+
'\u{252C}' => 194, // ┬
377+
'\u{2534}' => 193, // ┴
378+
'\u{253C}' => 197, // ┼
379+
'\u{2550}' => 205, // ═
380+
'\u{2551}' => 186, // ║
381+
'\u{2554}' => 201, // ╔
382+
'\u{2557}' => 187, // ╗
383+
'\u{255A}' => 200, // ╚
384+
'\u{255D}' => 188, // ╝
385+
'\u{2560}' => 204, // ╠
386+
'\u{2563}' => 185, // ╣
387+
'\u{2566}' => 203, // ╦
388+
'\u{2569}' => 202, // ╩
389+
'\u{256C}' => 206, // ╬
390+
'\u{2580}' => 223, // ▀
391+
'\u{2584}' => 220, // ▄
392+
'\u{2588}' => 219, // █
393+
'\u{2591}' => 176, // ░
394+
'\u{2592}' => 177, // ▒
395+
'\u{2593}' => 178, // ▓
396+
'\u{25A0}' => 254, // ■
397+
_ => b'?',
398+
}
58399
}

‎src/logo.ansi‎

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Original file line numberDiff line numberDiff line change
@@ -0,0 +1,7 @@
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╔══════════════════════════════════════════════════════════════════════════════╗
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║ ██ █ █████ █████ █████ ████ █████ ██ █ ║
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║ ▓ ▓ ▓ ▓ ▓ ▓  ▓ ▓ ▓ ▓ ▓ ▓ ▓ ▓ ║
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║ ▓ ▓ ▓ ▓▓▓▓ ▓ ▓  ▓ ▓▓▓▓ ▓ ▓ ▓ ▓ ▓ ║
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║ ▒ ▒▒ ▒ ▒ ▒  ▒ ▒ ▒ ▒ ▒ ▒ ▒▒ ║
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║ ▒ ▒ ▒▒▒▒▒ ▒▒▒▒▒  ▒ ▒ ▒ ▒▒▒▒▒ ▒ ▒ ║
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╚══════════════════════════════════════════════════════════════════════════════╝

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