Initial vendor packages

Signed-off-by: Valentin Popov <valentin@popov.link>

1 files changed, 41 insertions, 0 deletions

diff --git a/vendor/gif/examples/check.rs b/vendor/gif/examples/check.rs
new file mode 100644
index 0000000..89a6123
--- /dev/null
+++ b/vendor/gif/examples/check.rs
@@ -0,0 +1,41 @@
+use std::{env, fs, process};
+
+fn main() {
+    let file = env::args().nth(1)
+        .unwrap_or_else(|| explain_usage());
+    let file = fs::File::open(&file)
+        .expect("failed to open input file");
+    let mut reader = {
+        let mut options = gif::DecodeOptions::new();
+        options.allow_unknown_blocks(true);
+        options.read_info(file).unwrap()
+    };
+
+    loop {
+        let frame = match reader.read_next_frame() {
+            Ok(Some(frame)) => frame,
+            Ok(None) => break,
+            Err(error) => {
+                println!("Error: {:?}", error);
+                break;
+            }
+        };
+
+        println!(
+            " Frame:\n  \
+                 delay: {:?}\n  \
+                 canvas: {}x{}+{}+{}\n  \
+                 dispose: {:?}\n  \
+                 needs_input: {:?}",
+            frame.delay,
+            frame.width, frame.height, frame.left, frame.top,
+            frame.dispose,
+            frame.needs_user_input
+        );
+    }
+}
+
+fn explain_usage() -> ! {
+    println!("Print information on the frames of a gif.\n\nUsage: check <file>");
+    process::exit(1)
+}