From 94db4383f8b5e306a3f4ee6f2c0c79f5d1c5847e Mon Sep 17 00:00:00 2001
From: lonkaars <loek@pipeframe.xyz>
Date: Mon, 5 Jun 2023 12:33:17 +0200
Subject: add usage and rename program to `ate`

---
 os2eindopdracht/.gitignore    |  2 +-
 os2eindopdracht/Arguments.cpp | 12 +++++++++++-
 os2eindopdracht/makefile      | 16 +++++++++++++---
 os2eindopdracht/usage.txt     |  8 ++++++++
 4 files changed, 33 insertions(+), 5 deletions(-)
 create mode 100644 os2eindopdracht/usage.txt

diff --git a/os2eindopdracht/.gitignore b/os2eindopdracht/.gitignore
index 181de15..9ec7b74 100644
--- a/os2eindopdracht/.gitignore
+++ b/os2eindopdracht/.gitignore
@@ -1,5 +1,5 @@
 *.o
-main
+ate
 *.png
 *.pcm
 *.wav
diff --git a/os2eindopdracht/Arguments.cpp b/os2eindopdracht/Arguments.cpp
index a390eab..860ecf9 100644
--- a/os2eindopdracht/Arguments.cpp
+++ b/os2eindopdracht/Arguments.cpp
@@ -3,6 +3,9 @@
 
 #include "Arguments.h"
 
+extern char _binary_usage_txt_start;
+extern char _binary_usage_txt_end;
+
 using std::string;
 
 static void coefficients_bass(int intensity, double *b0, double *b1, double *b2, double *a1, double *a2);
@@ -10,7 +13,7 @@ static void coefficients_treble(int intensity, double *b0, double *b1, double *b
 
 Arguments::Arguments(int argc, char** argv) {
   while(1) {
-    switch(getopt(argc, argv, "p:b:t:")) {
+    switch(getopt(argc, argv, "p:b:t:h")) {
       case 'p': {
         this->max_threads = atoi(optarg);
         continue;
@@ -23,6 +26,13 @@ Arguments::Arguments(int argc, char** argv) {
         this->gain_treble = atoi(optarg);
         continue;
       }
+			case 'h': {
+				char* s = &_binary_usage_txt_start;
+				int len = &_binary_usage_txt_end - &_binary_usage_txt_start + 1;
+				printf("%.*s", len, s);
+				exit(0);
+				continue;
+			}
       case -1: break;
     }
     if (optind + 2 > argc) {
diff --git a/os2eindopdracht/makefile b/os2eindopdracht/makefile
index eb86336..87185b4 100644
--- a/os2eindopdracht/makefile
+++ b/os2eindopdracht/makefile
@@ -3,16 +3,22 @@ LD = g++
 RM = rm -f
 CFLAGS = -std=c++20
 LFLAGS =
-TARGET = main
+TARGET = ate
 
 SRCS := $(wildcard *.cpp)
 OBJS := $(patsubst %.cpp,%.o, $(SRCS))
+OBJS += usage.o
 
 all: $(TARGET)
 
 %.o: %.cpp
 	$(C++) -c $(CFLAGS) $< -o $@
 
+%.o: %.txt
+	objcopy --input binary --output elf64-x86-64 $< $@
+
+Arguments.o: usage.h
+
 $(TARGET): $(OBJS)
 	$(LD) $^ $(LFLAGS) -o $@
 
@@ -25,13 +31,17 @@ compile_commands:
 original.pcm: original.flac
 	./any2s16lepcm $< $@
 
-edit.pcm: original.pcm ./main
-	./main $< $@ -b-4 -t-18
+edit.pcm: original.pcm $(TARGET)
+	./$(TARGET) $< $@ -b-4 -t-18
 
 edit.wav: edit.pcm
 	./s16lepcm2any $< $@
 
+original.wav: original.pcm
+	./s16lepcm2any $< $@
+
 edit.png: edit.wav
+original.png: original.wav
 
 %.png: %.wav
 	sox $< -n spectrogram -o $@
diff --git a/os2eindopdracht/usage.txt b/os2eindopdracht/usage.txt
new file mode 100644
index 0000000..dfe2904
--- /dev/null
+++ b/os2eindopdracht/usage.txt
@@ -0,0 +1,8 @@
+usage: ./ate [-h] [-b bass] [-t treble] [-p threads]
+
+options:
+  -h    show this help
+  -b    set bass gain to `bass` (in decibels)
+  -t    set treble gain to `treble` (in decibels)
+  -p    set maximum allowed worker threads to `threads` (default=4)
+
-- 
cgit v1.2.3