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add dry-run api to gfx

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dry-runs are useful for warming up "hot paths" in UI code
to improve latency. This is specifically a feature for tuning
interactions on systems that have swap memory.
This commit is contained in:
bunnie 2026-05-24 00:45:13 +08:00
parent b439d312a4
commit a4316e2aa7
3 changed files with 36 additions and 6 deletions
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4
libs/ux-api/src/service/api.rs
View file

@ -117,6 +117,10 @@ pub enum GfxOpcode {
Brightness,
#[cfg(feature = "board-baosec")]
FlipScreen,
/// This is used to toggle DryRun mode. The purpose of this mode is to
/// warm up UI routines from swap memory to improve UI latency.
#[cfg(feature = "board-baosec")]
DryRun,
/// Gutter for invalid calls
InvalidCall,

15
libs/ux-api/src/service/gfx.rs
View file

@ -848,6 +848,21 @@ impl Gfx {
.map(|_| ())
}
#[cfg(feature = "board-baosec")]
pub fn dry_run(&self, dry_run: bool) -> Result<(), xous::Error> {
send_message(
self.conn,
Message::new_blocking_scalar(
GfxOpcode::DryRun.to_usize().unwrap(),
if dry_run { 1 } else { 0 },
0,
0,
0,
),
)
.map(|_| ())
}
#[cfg(feature = "hosted-baosec")]
pub fn acquire_qr(&self) -> Result<QrAcquisition, xous::Error> {
let dummy = "otpauth://totp/ACME%20Co:john.doe@email.com?secret=HXDMVJECJJWSRB3HWIZR4IFUGFTMXBOZ&issuer=ACME%20Co&algorithm=SHA1&digits=6&period=30".to_string();

23
services/bao-video/src/main.rs
View file

@ -433,6 +433,7 @@ pub fn wrapped_main(main_thread_token: MainThreadToken) -> ! {
let mut qr_request: Option<xous::MessageEnvelope> = None;
let mut kbd_listeners: Vec<(CID, usize)> = Vec::new();
let cam_started = Arc::new(AtomicBool::new(false));
let mut dry_run = false;
#[allow(unused_mut)]
let mut orientation = DisplayOrientation::Normal;
loop {
@ -851,9 +852,11 @@ pub fn wrapped_main(main_thread_token: MainThreadToken) -> ! {
GfxOpcode::Flush => {
if qr_request.is_none() {
log::trace!("***gfx flush*** redraw##");
display
.redraw()
.unwrap_or_else(|_| display_timeout_handler(&udma_global, &mut display));
if !dry_run {
display
.redraw()
.unwrap_or_else(|_| display_timeout_handler(&udma_global, &mut display));
}
}
}
GfxOpcode::Clear => {
@ -1001,12 +1004,20 @@ pub fn wrapped_main(main_thread_token: MainThreadToken) -> ! {
display
.flip_vertical(scalar.arg1 != 0)
.unwrap_or_else(|_| display_timeout_handler(&udma_global, &mut display));
display
.redraw()
.unwrap_or_else(|_| display_timeout_handler(&udma_global, &mut display));
if !dry_run {
display
.redraw()
.unwrap_or_else(|_| display_timeout_handler(&udma_global, &mut display));
}
}
}
}
#[cfg(feature = "board-baosec")]
GfxOpcode::DryRun => {
if let Some(scalar) = msg.body.scalar_message_mut() {
dry_run = scalar.arg1 != 0;
}
}
GfxOpcode::Quit => {
log::info!("refusing to quit, this operation is not supported on this platform!");
}