fix(timer): add check for zero frequency

src/actions/splash.rs

@@ -1,7 +1,7 @@
 use crate::context::SproutContext;
 use crate::utils::framebuffer::Framebuffer;
 use crate::utils::read_file_contents;
-use anyhow::{Context, Result};
+use anyhow::{Context, Result, bail};
 use image::imageops::{FilterType, resize};
 use image::math::Rect;
 use image::{DynamicImage, ImageBuffer, ImageFormat, ImageReader, Rgba};
@@ -118,6 +118,11 @@ fn draw(image: DynamicImage) -> Result<()> {
     // Fit the image to the display frame.
     let fit = fit_to_frame(&image, display_frame);
 
+    // If the image is zero-sized, then we should bail with an error.
+    if fit.width == 0 || fit.height == 0 {
+        bail!("calculated frame size is zero");
+    }
+
     // Resize the image to fit the display frame.
     let image = resize_to_fit(&image, fit);
 

src/platform/timer.rs

@@ -53,9 +53,14 @@ fn arch_ticks() -> u64 {
 /// Acquire the tick frequency reported by the platform.
 fn arch_frequency() -> TickFrequency {
     #[cfg(target_arch = "aarch64")]
-    return aarch64::frequency();
+    let frequency = aarch64::frequency();
     #[cfg(target_arch = "x86_64")]
-    return x86_64::frequency();
+    let frequency = x86_64::frequency();
+    // If the frequency is 0, then something went very wrong and we should panic.
+    if frequency.ticks() == 0 {
+        panic!("timer frequency is zero");
+    }
+    frequency
 }
 
 /// Platform timer that allows measurement of the elapsed time.

src/platform/timer/x86_64.rs

@@ -62,9 +62,5 @@ fn measure_frequency() -> u64 {
 /// On x86_64, this is slightly expensive, so it should be done once.
 pub fn frequency() -> TickFrequency {
     let frequency = measure_frequency();
-    // If the frequency is 0, then something went very wrong and we should panic.
-    if frequency == 0 {
-        panic!("unable to measure frequency");
-    }
     TickFrequency::Measured(frequency, MEASURE_FREQUENCY_DURATION)
 }