Improved texture writing

src/app/canvas.rs

@@ -19,6 +19,7 @@ use crate::error::Error;
 
 use std::path::Path;
 use std::fs::File;
+use std::io::BufWriter;
 use std::fmt;
 
 const ZOOM_SENSITIVITY: f64 = 0.125;
@@ -823,5 +824,5 @@ impl Camera {
 }
 
 fn export_image_buffer<P: AsRef<Path>>(path: P, image: RgbImage) -> Result<(), Error> {
-  super::map::write_rgb_bmp_image(File::create(path)?, &image)
+  super::map::write_rgb_bmp_image(BufWriter::new(File::create(path)?), &image)
 }

src/app/map/bridge.rs

@@ -14,7 +14,7 @@ use crate::util::uord::UOrd;
 
 use std::path::{Path, PathBuf};
 use std::collections::hash_map::Entry;
-use std::io::{self, Cursor, Read, Write};
+use std::io::{self, Cursor, BufWriter, Read, Write};
 use std::cmp::Ordering;
 use std::fs::File;
 use std::fmt;
@@ -302,7 +302,7 @@ pub fn save_bundle(location: &Location, bundle: &Bundle) -> Result<(), Error> {
     Location::Dir(path) => {
       let (definition_table, adjacencies_table, id_changes) = deconstruct_map_data(bundle)?;
 
-      let file = create_file(path.join("provinces.bmp"))?;
+      let file = BufWriter::new(create_file(path.join("provinces.bmp"))?);
       write_rgb_bmp_image(file, &bundle.map.color_buffer)?;
 
       let file = create_file(path.join("definition.csv"))?;