Removed image as a dependency from cz

cz/Cargo.toml

@@ -9,17 +9,11 @@ Prototype Ltd.
 license = "MIT"
 authors.workspace = true
 
-[features]
-png = ["dep:image"]
-
 [dependencies]
-byteorder-lite = "0.1.0"
+byteorder-lite = "0.1"
-thiserror = "1.0"
+thiserror = "2.0"
 imagequant = "4.3"
 rgb = "0.8"
 
-# Only active on PNG feature
-image = { version = "0.25", optional = true }
-
 [lints]
 workspace = true

cz/src/dynamic.rs

@@ -192,35 +192,6 @@ impl DynamicCz {
         Ok(())
     }
 
-    /// Save the CZ# image as a lossless PNG file.
-    ///
-    /// Internally, the [`DynamicCz`] struct operates on 32-bit RGBA values,
-    /// which is the highest encountered in CZ# files, therefore saving them
-    /// as a PNG of the same or better quality is lossless.
-    #[cfg(feature = "png")]
-    pub fn save_as_png<P: ?Sized + AsRef<std::path::Path>>(
-        &self,
-        path: &P,
-    ) -> Result<(), image::error::EncodingError> {
-        let size = (self.header_common.width() as u32 * self.header_common.height() as u32) * 4;
-
-        let mut buf = vec![0; size as usize];
-        buf[..self.bitmap.len()].copy_from_slice(&self.bitmap);
-
-        let image = image::RgbaImage::from_raw(
-            self.header_common.width() as u32,
-            self.header_common.height() as u32,
-            buf.clone(),
-        )
-        .unwrap();
-
-        image
-            .save_with_format(path, image::ImageFormat::Png)
-            .unwrap();
-
-        Ok(())
-    }
-
     /// Create a CZ# image from RGBA bytes. The bytes *must* be RGBA, as that
     /// is the only format that is used internally.
     pub fn from_raw(version: CzVersion, width: u16, height: u16, bitmap: Vec<u8>) -> Self {

pak_explorer/Cargo.toml

@@ -11,9 +11,10 @@ publish = false
 
 [dependencies]
 colog = "1.3.0"
-cz = { path = "../cz/", features = ["png"] }
+cz = { path = "../cz/" }
 eframe = { version = "0.28.1", default-features = false, features = ["wayland", "x11", "accesskit", "default_fonts", "wgpu"] }
 egui_extras = "0.28.1"
+image = { version = "0.25.5", default-features = false, features = ["png"] }
 log = "0.4.22"
 luca_pak = { path = "../luca_pak/" }
 rfd = "0.14.1"

pak_explorer/src/main.rs

@@ -162,7 +162,14 @@ impl eframe::App for PakExplorer {
                                     entry.as_bytes(),
                                 ))
                                 .unwrap();
-                                cz.save_as_png(&path).unwrap();
+                                image::save_buffer_with_format(
+                                    path,
+                                    cz.as_raw(),
+                                    cz.header().width() as u32,
+                                    cz.header().height() as u32,
+                                    image::ColorType::Rgba8,
+                                    image::ImageFormat::Png
+                                ).unwrap();
                             }
                         }
 

utils/Cargo.toml

@@ -13,7 +13,7 @@ name = "czutil"
 name = "pakutil"
 
 [dependencies]
-cz = { path = "../cz/", features = ["png"] }
+cz = { path = "../cz/" }
 luca_pak = { path = "../luca_pak/" }
 
 image = { version = "0.25", default-features = false, features = ["png"] }

utils/src/bin/czutil.rs

@@ -1,4 +1,5 @@
-use clap::{error::ErrorKind, Command, Error, Parser, Subcommand};
+use clap::{error::ErrorKind, Error, Parser, Subcommand};
+use image::ColorType;
 use std::{
     fs,
     path::{Path, PathBuf},
@@ -145,16 +146,37 @@ fn main() {
                         }
                     };
 
-                    cz.save_as_png(&final_path).unwrap();
+                    image::save_buffer_with_format(
+                        final_path,
+                        cz.as_raw(),
+                        cz.header().width() as u32,
+                        cz.header().height() as u32,
+                        ColorType::Rgba8,
+                        image::ImageFormat::Png
+                    ).unwrap();
                 }
             } else {
                 let cz = cz::open(input).unwrap();
 
                 if let Some(output) = output {
-                    cz.save_as_png(output).unwrap();
+                    image::save_buffer_with_format(
+                        output,
+                        cz.as_raw(),
+                        cz.header().width() as u32,
+                        cz.header().height() as u32,
+                        ColorType::Rgba8,
+                        image::ImageFormat::Png
+                    ).unwrap();
                 } else {
                     let file_stem = PathBuf::from(input.file_name().unwrap());
-                    cz.save_as_png(&file_stem.with_extension("png")).unwrap();
+                    image::save_buffer_with_format(
+                        file_stem.with_extension("png"),
+                        cz.as_raw(),
+                        cz.header().width() as u32,
+                        cz.header().height() as u32,
+                        ColorType::Rgba8,
+                        image::ImageFormat::Png
+                    ).unwrap();
                 }
             }
         }