initial

.gitignore

+bin/
+obj/
+test1/
+test2/

LICENSE

+        DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
+                    Version 2, December 2004
+
+ Copyright (C) 2004 Sam Hocevar <sam@hocevar.net>
+
+ Everyone is permitted to copy and distribute verbatim or modified
+ copies of this license document, and changing it is allowed as long
+ as the name is changed.
+
+            DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
+   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
+
+  0. You just DO WHAT THE FUCK YOU WANT TO.

Makefile

+
+SED ?= sed
+AWK ?= awk
+NASM ?= nasm
+
+default: all
+
+%/:
+	mkdir -p "$@"
+
+obj/4klang.%: mus/4klang.% xlatsection.awk obj/
+	$(AWK) -f "xlatsection.awk" "$<" > "$@"
+obj/4klang.h: mus/4klang.h obj/
+	$(SED) -E 's/extern "C"/EXTERN_C/' "$<" > "$@"
+
+obj/4klang.o: obj/4klang.asm obj/4klang.inc
+	$(NASM) -g -I obj -f elf32 -o "$@" "$<"
+
+obj/runner.o: src/runner.c obj/4klang.h
+	$(CC) -g -m32 -o "$@" -c "$<" -I obj
+
+bin/runner: obj/runner.o obj/4klang.o bin/
+	$(CC) -g -m32 -o "$@" $(filter-out bin/,$^)
+
+all: bin/runner
+
+clean:
+	$(RM) -vr bin/ obj/
+
+.PHONY: default all clean
+

README.md

+# 4klang on Linux
+
+Small template code to get 4klang running on Linux :)
+
+Quickly hacked together by PoroCYon.
+
+Hugs to Alkama and noby for providing test tracks!
+
+## How to use
+
+### Requirements
+
+* A C compiler, make, sed, awk
+* nasm or yasm
+
+### Usage
+
+1. Put the exported 4klang files in the `mus` folder (`4klang.asm`,
+   `4klang.inc` and `4klang.h`).
+2. Run `make`
+3. Run `bin/runner`
+
+## License
+
+[WTFPL](/LICENSE).
+

mus/put_your_4klang_files_here

+Put these three files in this directory:
+
+4klang.asm
+4klang.inc
+4klang.h

src/runner.c

+
+#include <stdio.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+
+#define __stdcall /* this isn't windows. */
+
+#ifdef __cplusplus
+#define EXTERN_C extern "C" /* C++ suxx */
+#else
+#define EXTERN_C
+#endif
+
+#include "4klang.h"
+
+#ifdef FLOAT_32BIT
+#define APLAY_SAMPLE_FORMAT "FLOAT_LE"
+#else
+/*
+ * If you encounter this error, you should look at your 4klang.h file and check
+ * the line above the "#define SAMPLE_TYPE" one. This macro definition can be
+ * used to give the APLAY_SAMPLE_FORMAT the correct string value. Consult the
+ * aplay(1) manpage for the details. For example, signed 16-bit int is S16_LE.
+ */
+#error "This 4klang sample type isn't \"supported\" yet."
+#endif
+
+#define STRINGIFY(s) _STRINGIFIER(s)
+#define _STRINGIFIER(s) #s
+
+static SAMPLE_TYPE output_buffer[MAX_SAMPLES*2];
+
+static char*const aplay_args[] = {
+	"/usr/bin/aplay",
+		"-c2",
+		"-f" APLAY_SAMPLE_FORMAT,
+		"-r" STRINGIFY(SAMPLE_RATE),
+	NULL
+};
+
+int main() {
+	// pipefds[0]: read end
+	// pipefds[1]: write end
+	int pipefds[2];
+	pipe(pipefds);
+
+	pid_t childpid = fork();
+	if (!childpid) {
+		// child process
+		dup2(pipefds[0], STDIN_FILENO);
+		execv("/usr/bin/aplay", aplay_args);
+	} else if (childpid > 0) {
+		_4klang_render(output_buffer);
+		ssize_t writesz = 65536 /* pipe buffer size */, readsz;
+		const char* outbuf = (const char*)output_buffer;
+		do {
+			readsz = write(pipefds[1], outbuf, writesz);
+			outbuf += writesz;
+		} while (readsz == writesz);
+		waitpid(childpid, NULL, 0);
+	} else {
+		dprintf(STDERR_FILENO, "Err: couldn't fork.\n");
+	}
+}
+

xlatsection.awk

+#
+# De-windowsify section and exported symbol names
+#
+
+{
+	if ($0 ~ "^section[\t ]+(\.[^\t ]*)[\t ]+([^\t ]*)[\t ]+align=(.*)$") {
+		basesect = $3
+		if (basesect == "code") {
+			basesect = "text"
+		}
+
+		extra = ""
+
+		if (basesect == "text") {
+			extra = " progbits alloc exec nowrite "
+		} else if (basesect == "data") {
+			extra = " progbits alloc noexec write "
+		} else if (basesect == "bss") {
+			extra = " nobits alloc noexec write "
+		}
+
+		print $1 " ." basesect $2 extra $4
+	} else if ($2 ~ "_4klang_render@4" && $1 == "export_func") {
+		print $1 " 4klang_render"
+	} else {
+		print $0
+	}
+}
+