From caff7156466e7f0f9a25efa464d9198aae705668 Mon Sep 17 00:00:00 2001
From: meowtec <bertonzh@gmail.com>
Date: Fri, 26 May 2023 12:34:59 +0800
Subject: [PATCH] feat(core): early panic if the PNG icon is not RGBA, closes
 #6706

---
 .changes/early-panic-for-png-not-rgba.md | 5 +++++
 core/tauri-codegen/src/context.rs        | 7 +++++++
 2 files changed, 12 insertions(+)
 create mode 100644 .changes/early-panic-for-png-not-rgba.md

diff --git a/.changes/early-panic-for-png-not-rgba.md b/.changes/early-panic-for-png-not-rgba.md
new file mode 100644
index 000000000000..ace15393da86
--- /dev/null
+++ b/.changes/early-panic-for-png-not-rgba.md
@@ -0,0 +1,5 @@
+---
+"tauri-codegen": 'patch:enhance'
+---
+
+Early panic if the PNG icon is not RGBA.
diff --git a/core/tauri-codegen/src/context.rs b/core/tauri-codegen/src/context.rs
index 1ff45f205137..c2929320c2e1 100644
--- a/core/tauri-codegen/src/context.rs
+++ b/core/tauri-codegen/src/context.rs
@@ -516,6 +516,13 @@ fn png_icon<P: AsRef<Path>>(
   let mut reader = decoder
     .read_info()
     .unwrap_or_else(|e| panic!("failed to read icon {}: {}", path.display(), e));
+
+  let (color_type, _) = reader.output_color_type();
+
+  if color_type != png::ColorType::Rgba {
+    panic!("icon {} is not RGBA", path.display());
+  }
+
   let mut buffer: Vec<u8> = Vec::new();
   while let Ok(Some(row)) = reader.next_row() {
     buffer.extend(row.data());