Version 0.2.2

- Add application icon
- Fixes for objects containing multiple
  sections with the same name

Author: encounter

Cargo.lock

@@ -1,6 +1,6 @@
 [package]
 name = "objdiff"
-version = "0.2.1"
+version = "0.2.2"
 edition = "2021"
 rust-version = "1.62"
 authors = ["Luke Street <luke@street.dev>"]
@@ -18,6 +18,7 @@ strip = "debuginfo"
 
 [dependencies]
 anyhow = "1.0.66"
+bytes = "1.3.0"
 cfg-if = "1.0.0"
 const_format = "0.2.30"
 cwdemangle = { git = "https://github.com/encounter/cwdemangle", rev = "286f3d1d29ee2457db89043782725631845c3e4c" }
@@ -29,22 +30,26 @@ log = "0.4.17"
 memmap2 = "0.5.8"
 notify = "5.0.0"
 object = { version = "0.30.0", features = ["read_core", "std", "elf"], default-features = false }
+png = "0.17.7"
 ppc750cl = { git = "https://github.com/encounter/ppc750cl", rev = "aa631a33de7882c679afca89350898b87cb3ba3f" }
 rabbitizer = { git = "https://github.com/encounter/rabbitizer-rs", rev = "10c279b2ef251c62885b1dcdcfe740b0db8e9956" }
+reqwest = "0.11.13"
 rfd = { version = "0.10.0" } # , default-features = false, features = ['xdg-portal']
 self_update = "0.32.0"
 serde = { version = "1", features = ["derive"] }
+tempfile = "3.3.0"
 thiserror = "1.0.37"
 time = { version = "0.3.17", features = ["formatting", "local-offset"] }
 toml = "0.5.9"
 twox-hash = "1.6.3"
-tempfile = "3.3.0"
-reqwest = "0.11.13"
 
 [target.'cfg(windows)'.dependencies]
 path-slash = "0.2.1"
 winapi = "0.3.9"
 
+[target.'cfg(windows)'.build-dependencies]
+winres = "0.1.12"
+
 [target.'cfg(unix)'.dependencies]
 exec = "0.3.1"
 

Cargo.toml

@@ -1,4 +1,10 @@
 use anyhow::Result;
 use vergen::{vergen, Config};
 
-fn main() -> Result<()> { vergen(Config::default()) }
+fn main() -> Result<()> {
+    #[cfg(windows)]
+    {
+        winres::WindowsResource::new().set_icon("assets/icon.ico").compile()?;
+    }
+    vergen(Config::default())
+}

assets/icon.ico

@@ -79,6 +79,11 @@ impl Default for ViewConfig {
     }
 }
 
+pub struct SymbolReference {
+    pub symbol_name: String,
+    pub section_index: usize,
+}
+
 #[derive(serde::Deserialize, serde::Serialize)]
 #[serde(default)]
 pub struct ViewState {
@@ -89,7 +94,7 @@ pub struct ViewState {
     #[serde(skip)]
     pub highlighted_symbol: Option<String>,
     #[serde(skip)]
-    pub selected_symbol: Option<String>,
+    pub selected_symbol: Option<SymbolReference>,
     #[serde(skip)]
     pub current_view: View,
     #[serde(skip)]

assets/icon.png

@@ -3,9 +3,27 @@
 
 use std::{path::PathBuf, rc::Rc, sync::Mutex};
 
+use anyhow::{Error, Result};
 use cfg_if::cfg_if;
+use eframe::IconData;
 use time::UtcOffset;
 
+fn load_icon() -> Result<IconData> {
+    use bytes::Buf;
+    let decoder = png::Decoder::new(include_bytes!("../assets/icon_64.png").reader());
+    let mut reader = decoder.read_info()?;
+    let mut buf = vec![0; reader.output_buffer_size()];
+    let info = reader.next_frame(&mut buf)?;
+    if info.bit_depth != png::BitDepth::Eight {
+        return Err(Error::msg("Invalid bit depth"));
+    }
+    if info.color_type != png::ColorType::Rgba {
+        return Err(Error::msg("Invalid color type"));
+    }
+    buf.truncate(info.buffer_size());
+    Ok(IconData { rgba: buf, width: info.width, height: info.height })
+}
+
 // When compiling natively:
 #[cfg(not(target_arch = "wasm32"))]
 fn main() {
@@ -19,7 +37,15 @@ fn main() {
 
     let exec_path: Rc<Mutex<Option<PathBuf>>> = Rc::new(Mutex::new(None));
     let exec_path_clone = exec_path.clone();
-    let native_options = eframe::NativeOptions::default();
+    let mut native_options = eframe::NativeOptions::default();
+    match load_icon() {
+        Ok(data) => {
+            native_options.icon_data = Some(data);
+        }
+        Err(e) => {
+            log::warn!("Failed to load application icon: {}", e);
+        }
+    }
     // native_options.renderer = eframe::Renderer::Wgpu;
     eframe::run_native(
         "objdiff",

assets/icon_64.png

@@ -9,7 +9,7 @@ use object::{
         R_PPC_EMB_SDA21, R_PPC_REL14, R_PPC_REL24,
     },
     Architecture, File, Object, ObjectSection, ObjectSymbol, RelocationKind, RelocationTarget,
-    SectionKind, Symbol, SymbolKind, SymbolSection,
+    SectionIndex, SectionKind, Symbol, SymbolKind, SymbolSection,
 };
 
 use crate::obj::{
@@ -192,9 +192,7 @@ fn relocations_by_section(
     obj_file: &File<'_>,
     section: &mut ObjSection,
 ) -> Result<Vec<ObjReloc>> {
-    let obj_section = obj_file
-        .section_by_name(&section.name)
-        .ok_or_else(|| anyhow::Error::msg("Failed to locate section"))?;
+    let obj_section = obj_file.section_by_index(SectionIndex(section.index))?;
     let mut relocations = Vec::<ObjReloc>::new();
     for (address, reloc) in obj_section.relocations() {
         let symbol = match reloc.target() {

build.rs

@@ -5,16 +5,16 @@ use egui_extras::{Size, StripBuilder, TableBuilder};
 use time::format_description;
 
 use crate::{
-    app::{View, ViewConfig, ViewState},
+    app::{SymbolReference, View, ViewConfig, ViewState},
     jobs::Job,
     obj::{ObjDataDiff, ObjDataDiffKind, ObjInfo, ObjSection},
     views::{write_text, COLOR_RED},
 };
 
 const BYTES_PER_ROW: usize = 16;
 
-fn find_section<'a>(obj: &'a ObjInfo, section_name: &str) -> Option<&'a ObjSection> {
-    obj.sections.iter().find(|s| s.name == section_name)
+fn find_section<'a>(obj: &'a ObjInfo, selected_symbol: &SymbolReference) -> Option<&'a ObjSection> {
+    obj.sections.get(selected_symbol.section_index)
 }
 
 fn data_row_ui(ui: &mut egui::Ui, address: usize, diffs: &[ObjDataDiff], config: &ViewConfig) {
@@ -132,11 +132,11 @@ fn data_table_ui(
     table: TableBuilder<'_>,
     left_obj: &ObjInfo,
     right_obj: &ObjInfo,
-    section_name: &str,
+    selected_symbol: &SymbolReference,
     config: &ViewConfig,
 ) -> Option<()> {
-    let left_section = find_section(left_obj, section_name)?;
-    let right_section = find_section(right_obj, section_name)?;
+    let left_section = find_section(left_obj, selected_symbol)?;
+    let right_section = find_section(right_obj, selected_symbol)?;
 
     let total_bytes = left_section.data_diff.iter().fold(0usize, |accum, item| accum + item.len);
     if total_bytes == 0 {
@@ -219,7 +219,7 @@ pub fn data_diff_ui(ui: &mut egui::Ui, view_state: &mut ViewState) -> bool {
                                 ui.style_mut().override_text_style =
                                     Some(egui::TextStyle::Monospace);
                                 ui.style_mut().wrap = Some(false);
-                                ui.colored_label(Color32::WHITE, selected_symbol);
+                                ui.colored_label(Color32::WHITE, &selected_symbol.symbol_name);
                                 ui.label("Diff target:");
                                 ui.separator();
                             });