Move katsu capture into new module

Cappy3ds/src/capture/katsukitty/image.rs

@@ -0,0 +1,48 @@
+use bytes::{BufMut, BytesMut};
+use image::{ImageBuffer, Rgb};
+use itertools::Itertools;
+use memchr::memmem;
+
+extern crate libusb1_sys as usbffi;
+
+use crate::capture::katsukitty::parse;
+
+pub fn parse_image_data(data: &Vec<u8>) {
+    let mut found_frames = 0;
+
+    let finder = memmem::Finder::new(&[0x33, 0xCC, 0x00, 0x00]);
+
+    let iter = finder.find_iter(&data);
+
+    let result = iter.tuple_windows().collect::<Vec<_>>();
+
+    for (start, end) in result {
+        let mut out_buf = BytesMut::with_capacity(0x40000);
+        out_buf.put(&data[start..end]);
+
+        let (upper_buffer, lower_buffer, sound_buffer) = parse::split_capture_buffer(&out_buf);
+
+        // print lower image
+        let result =
+            ImageBuffer::<Rgb<u8>, _>::from_raw(240, 320, parse::rgb565_to_rgb(&lower_buffer));
+        if let Some(image) = result {
+            image.save(format!("./img_out/lower_{}.png", found_frames));
+        }
+
+        // print upper image
+        let result: Option<ImageBuffer<Rgb<u8>, BytesMut>> =
+            ImageBuffer::<Rgb<u8>, _>::from_raw(240, 400, parse::rgb565_to_rgb(&upper_buffer));
+        if let Some(image) = result {
+            image.save(format!("./img_out/upper_{}.png", found_frames));
+        }
+
+        // print audio for fun
+        let result: Option<ImageBuffer<Rgb<u8>, BytesMut>> =
+            ImageBuffer::<Rgb<u8>, _>::from_raw(8, 801, parse::rgb565_to_rgb(&sound_buffer));
+        if let Some(image) = result {
+            image.save(format!("./img_out/audio{}.png", found_frames));
+        }
+
+        found_frames += 1;
+    }
+}