From e2951c85e2e1dc2adc805461a338c3b4c27a88b0 Mon Sep 17 00:00:00 2001
From: Sam Davis <sam@sjd.co>
Date: Sun, 14 Dec 2025 15:06:05 +1100
Subject: [PATCH] add separate render path when sleep.bmp is found in root of
 sd card

---
 src/screens/SleepScreen.cpp | 26 ++++++++++++++++++++++++++
 src/screens/SleepScreen.h   |  3 +++
 2 files changed, 29 insertions(+)

diff --git a/src/screens/SleepScreen.cpp b/src/screens/SleepScreen.cpp
index cbcb411..0b83387 100644
--- a/src/screens/SleepScreen.cpp
+++ b/src/screens/SleepScreen.cpp
@@ -2,10 +2,23 @@
 
 #include <GfxRenderer.h>
 
+#include "SD.h"
 #include "config.h"
 #include "images/CrossLarge.h"
 
 void SleepScreen::onEnter() {
+  // Look for sleep.bmp on the root of the sd card to determine if we should
+  // render a custom sleep screen instead of the default.
+  auto file = SD.open("/sleep.bmp");
+  if (file) {
+    renderCustomSleepScreen(file);
+    return;
+  }
+
+  renderDefaultSleepScreen();
+}
+
+void SleepScreen::renderDefaultSleepScreen() {
   const auto pageWidth = GfxRenderer::getScreenWidth();
   const auto pageHeight = GfxRenderer::getScreenHeight();
 
@@ -16,3 +29,16 @@ void SleepScreen::onEnter() {
   renderer.invertScreen();
   renderer.displayBuffer(EInkDisplay::HALF_REFRESH);
 }
+
+void SleepScreen::renderCustomSleepScreen(File file) {
+  Serial.println("Rendering custom sleep screen from sleep.bmp");
+
+  const auto pageWidth = GfxRenderer::getScreenWidth();
+  const auto pageHeight = GfxRenderer::getScreenHeight();
+
+  renderer.clearScreen();
+
+  renderer.drawCenteredText(UI_FONT_ID, pageHeight / 2 + 70, "CUSTOM SLEEP SCREEN", true, BOLD);
+
+  renderer.displayBuffer(EInkDisplay::HALF_REFRESH);
+}
diff --git a/src/screens/SleepScreen.h b/src/screens/SleepScreen.h
index b280087..29857a8 100644
--- a/src/screens/SleepScreen.h
+++ b/src/screens/SleepScreen.h
@@ -1,8 +1,11 @@
 #pragma once
+#include "SD.h"
 #include "Screen.h"
 
 class SleepScreen final : public Screen {
  public:
   explicit SleepScreen(GfxRenderer& renderer, InputManager& inputManager) : Screen(renderer, inputManager) {}
   void onEnter() override;
+  void renderDefaultSleepScreen();
+  void renderCustomSleepScreen(File file);
 };