Refactor and prepare for multiple files

Cargo.toml

@@ -14,6 +14,5 @@ flate2 = "1.0.26"
 samplerate = "0.2.4"
 hound = "3.5.0"
 pitch_shift = "1.0.0"
-uuid = { version = "1.4.1", features = [ "v4" ] }
 linked_hash_set = "0.1.4"
 convert_case = "0.6.0"

src/reskit/cli/evaluator.rs

@@ -21,9 +21,11 @@ pub fn run_command() -> Result<(), Box<dyn Error>> {
                 }
             ),
         Tools::Soundtrack { input_file, output_file, input_format: _, output_format: _, source_file_format: _, artifact_output_directory, soundtrack_label, instrument_list_label } => {
-            let result = DmfModule::from_file( &input_file )?;
+            let result: Vec<DmfModule> = input_file.iter().map( | filename | Ok( DmfModule::from_file( &filename )? ) ).collect::<Result<Vec<DmfModule>, Box<dyn Error>>>()?;
+            // very temporary!
+            let result: &DmfModule = result.first().ok_or( "must provide input_file" )?;
 
-            for ( filename, data ) in result.get_artifacts( &soundtrack_label, &output_file, &artifact_output_directory, &instrument_list_label )? {
+            for ( filename, data ) in result.get_artifacts( 0, &soundtrack_label, &output_file, &artifact_output_directory, &instrument_list_label )? {
                 println!( "Creating artifact file {}{}", artifact_output_directory, filename );
                 let mut file = File::create( format!( "{}{}", artifact_output_directory, filename ) )?;
                 file.write_all( &data )?

src/reskit/cli/settings.rs

@@ -66,9 +66,9 @@ pub enum Tools {
     Soundtrack {
         /// Input filename
         #[arg(short, long)]
-        input_file: String,
+        input_file: Vec<String>,
 
-        /// Output filename
+        /// Output filename (if multiple input_files are provided, used as output parent directory)
         #[arg(short, long)]
         output_file: String,
 

src/reskit/soundtrack/engines/echo/dmf.rs

@@ -1,24 +1,20 @@
 use std::{collections::HashMap, cmp::{max, min}, error::Error};
 use convert_case::{Case, Casing};
 use samplerate::convert;
-use uuid::Uuid;
+use crate::reskit::{soundtrack::{formats::dmf::{DmfModule, ECHO_EWF_SAMPLE_RATE}, types::{InstrumentType, SampleFormat, Channel, PatternRow, Effect}}, utility::{print_warning, Ring}};
-use crate::reskit::{soundtrack::{formats::dmf::{DmfModule, ECHO_EWF_SAMPLE_RATE}, types::{InstrumentType, SampleFormat, Channel, PatternRow, Effect}}, utility::{print_warning, Ring, print_info}};
 use super::engine::{EchoFormat, ESF_FM_1, ESF_FM_2, ESF_FM_3, ESF_FM_4, ESF_FM_5, ESF_FM_6, ESF_PSG_1, ESF_PSG_2, ESF_PSG_3, ESF_PSG_4, EchoEvent, get_events_for_row, compact_delays, ESF_SET_LOOP, ESF_GO_TO_LOOP, ESF_STOP};
 
-
 impl EchoFormat for DmfModule {
 
-    fn get_artifacts( &self, soundtrack_label: &str, soundtrack_path: &str, artifact_path: &str, instr_list_label: &str ) -> Result<HashMap<String, Vec<u8>>, Box<dyn Error>> {
+    fn get_artifacts( &self, file_index: u32, soundtrack_label: &str, soundtrack_path: &str, artifact_path: &str, instr_list_label: &str ) -> Result<HashMap<String, Vec<u8>>, Box<dyn Error>> {
         let mut files: HashMap<String, Vec<u8>> = HashMap::new();
         // This next list preserves order of filenames to generate the echo .asm file
         let mut instrument_filenames: Vec<String> = Vec::new();
 
+        let mut index = 0;
         for instrument in &self.instruments {
             match &instrument.instrument_type {
                 InstrumentType::Fm2612( settings ) => {
-                    let uuid = Uuid::new_v4().to_string();
-                    instrument_filenames.push( format!( "{}.eif", if instrument.name.is_empty() { format!( "fm_{}", uuid ) } else { instrument.name.to_owned() } ) );
-
                     // Create feedback + algorithm byte
                     let alg_fb: u8 = ( settings.fb << 3 ) | settings.alg;
 
@@ -71,12 +67,11 @@ impl EchoFormat for DmfModule {
                     eif.extend( rr_sl );
                     eif.extend( ssg_eg );
 
-                    files.insert( format!( "{}.eif", if instrument.name.is_empty() { format!( "fm_{}", uuid ) } else { instrument.name.to_owned() } ), eif );
+                    let filename = format!( "file{}_ins{}_{}.eif", file_index, index, instrument.name );
+                    instrument_filenames.push( filename.clone() );
+                    files.insert( filename, eif );
                 },
                 InstrumentType::PsgDcsg( settings ) => {
-                    let uuid = Uuid::new_v4().to_string();
-                    instrument_filenames.push( format!( "{}.eef", if instrument.name.is_empty() { format!( "psg_{}", uuid ) } else { instrument.name.to_owned() } ) );
-
                     // Echo uses volume and arpeggio envelopes
                     // Noise envelopes are usable but cannot be articulated in an instrument.
                     // For use of the noise envelope, use ESF $0Bnn/$3Bnn and $3Ann in the stream.
@@ -204,15 +199,17 @@ impl EchoFormat for DmfModule {
                     // Echo end loop command
                     envelope.push( 0xFF );
 
-                    files.insert( format!( "{}.eef", if instrument.name.is_empty() { format!( "psg_{}", uuid ) } else { instrument.name.to_owned() } ), envelope );
+                    let filename = format!( "file{}_ins{}_{}.eef", file_index, index, instrument.name );
+                    instrument_filenames.push( filename.clone() );
+                    files.insert( filename, envelope );
                 }
             }
+
+            index += 1;
         }
 
+        index = 0;
         for sample in &self.samples {
-            let uuid = Uuid::new_v4().to_string();
-            instrument_filenames.push( format!( "{}.ewf", if sample.name.is_empty() { format!( "sample_{}", uuid ) } else { sample.name.to_owned() } ) );
-
             // Amplify data in original sample
             let data: Vec<i16> = sample.data
                                         .iter()
@@ -262,7 +259,11 @@ impl EchoFormat for DmfModule {
             // Terminate stream
             data.push( 0xFF );
 
-            files.insert( format!( "{}.ewf", if sample.name.is_empty() { format!( "sample_{}", uuid ) } else { sample.name.to_owned() } ), data );
+            let filename = format!( "file{}_sample{}_{}.ewf", file_index, index, sample.name );
+            instrument_filenames.push( filename.clone() );
+            files.insert( filename, data );
+
+            index += 1;
         }
 
         // Write Echo ASM file that includes all the instruments

src/reskit/soundtrack/engines/echo/engine.rs

@@ -69,7 +69,7 @@ pub type EchoEvent = Vec<u8>;
 
 pub trait EchoFormat {
 
-    fn get_artifacts( &self, soundtrack_label: &str, soundtrack_path: &str, artifact_path: &str, instrument_list_label: &str ) -> Result<HashMap<String, Vec<u8>>, Box<dyn Error>>;
+    fn get_artifacts( &self, file_index: u32, soundtrack_label: &str, soundtrack_path: &str, artifact_path: &str, instrument_list_label: &str ) -> Result<HashMap<String, Vec<u8>>, Box<dyn Error>>;
 
     fn get_esf( &self ) -> Result<Vec<u8>, Box<dyn Error>>;
 

src/reskit/soundtrack/types.rs

@@ -2,14 +2,14 @@ use std::{collections::HashMap, error::Error};
 
 use linked_hash_set::LinkedHashSet;
 
-#[derive(Debug)]
+#[derive(Debug, PartialEq)]
-pub struct PsgEnvelope< DataFormat > {
+pub struct PsgEnvelope< DataFormat: PartialEq > {
     pub envelope: Vec<DataFormat>,
     pub loop_at: Option<usize>,
     pub settings: HashMap<&'static str, bool>
 }
 
-#[derive(Debug)]
+#[derive(Debug, PartialEq)]
 pub struct PsgSettings {
     pub volume: PsgEnvelope< u32 >,
     pub arpeggio: PsgEnvelope< i32 >,
@@ -17,7 +17,7 @@ pub struct PsgSettings {
     pub wavetable: PsgEnvelope< u32 >
 }
 
-#[derive(Debug, Default)]
+#[derive(Debug, Default, PartialEq)]
 pub struct Fm2612Operator {
     pub am: u8,
     pub ar: u8,
@@ -33,7 +33,7 @@ pub struct Fm2612Operator {
     pub ssg_mode: u8
 }
 
-#[derive(Debug)]
+#[derive(Debug, PartialEq)]
 pub struct Fm2612Settings {
     pub alg: u8,
     pub fb: u8,
@@ -42,7 +42,7 @@ pub struct Fm2612Settings {
     pub operators: [Fm2612Operator; 4]
 }
 
-#[derive(Debug)]
+#[derive(Debug, PartialEq)]
 pub enum InstrumentType {
     Fm2612( Fm2612Settings ),
     PsgDcsg( PsgSettings )