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/*
* gbsplay is a Gameboy sound player
*
* 2003-2021 (C) by Tobias Diedrich <ranma+gbsplay@tdiedrich.de>
*
* Licensed under GNU GPL v1 or, at your option, any later version.
*/
#ifndef _COMMON_H_
#define _COMMON_H_
#include <inttypes.h>
#include <stddef.h>
#include <stdio.h>
#include <errno.h>
#include <string.h>
#include <math.h>
#include "config.h"
typedef uint64_t cycles_t;
/* mingw64 also defines __MINGW32__ in addition to __MINGW64__ */
#ifdef __MINGW32__
#define HAVE_MINGW 1
#endif
#ifndef true
#define true (0==0)
#define false (!true)
#endif
#define UNUSED(x) (void)(x)
#define WARN_N(n, ...) { \
static long ctr = n; \
if (ctr) { \
ctr--; \
fprintf(stderr, __VA_ARGS__); \
} \
}
#define WARN_ONCE(...) WARN_N(1, __VA_ARGS__)
#define CONTAINER_OF(ptr, type, member) \
((type *)((void *)(ptr) - offsetof(type, member)))
#define ARRAY_SIZE(x) (sizeof(x) / sizeof(*(x)))
#define TEXTDOMAIN "gbsplay"
#define N_(x) x
#define C0HZ 16.35
#define C0MIDI 12
#define C6GBRAW 1923 /* First note in gameboy startup sound, 1048.576Hz (3.4 cents too high) */
#define C6GB (2048 - C6GBRAW)
#define C6MIDI 84 /* 1046.50Hz in equal temperament */
/* wave channel produces half the frequency */
#define FREQ(x,ch) (131072. / ((x)<<((ch)>1)))
#define FREQTONOTE(f) (lround(log2((f)/C0HZ)*12)+C0MIDI)
#define NOTE(x,ch) FREQTONOTE(FREQ(x,ch))
#if USE_I18N == 1 && ENABLE_TEST != 1
# include <locale.h>
# include <libintl.h>
# if GBS_PRESERVE_TEXTDOMAIN == 1
static inline char* _(const char* const msgid)
{
char *olddomain = textdomain(NULL);
char *olddir = bindtextdomain(olddomain, NULL);
char *res;
bindtextdomain(TEXTDOMAIN, LOCALE_PREFIX);
res = dgettext(TEXTDOMAIN, msgid);
bindtextdomain(olddomain, olddir);
return res;
}
# else
static inline char* _(const char* const msgid)
{
return gettext(msgid);
}
static inline void i18n_init(void)
{
if (setlocale(LC_ALL, "") == NULL) {
fprintf(stderr, "setlocale() failed\n");
}
if (bindtextdomain(TEXTDOMAIN, LOCALE_PREFIX) == NULL) {
fprintf(stderr, "bindtextdomain() failed: %s\n", strerror(errno));
}
if (textdomain(TEXTDOMAIN) == NULL) {
fprintf(stderr, "textdomain() failed: %s\n", strerror(errno));
}
}
# endif
#else
# define _(x) (x)
static inline void i18n_init(void) {}
#endif
#if !defined(__BYTE_ORDER__) || !defined(__ORDER_LITTLE_ENDIAN__) || !defined(__ORDER_BIG_ENDIAN__)
#error Unsupported compiler
#endif
#if __BYTE_ORDER__ != 1234 && __BYTE_ORDER__ != 4321
#error Unexpected endian value __BYTE_ORDER__
#endif
#if __ORDER_LITTLE_ENDIAN__ != 1234
#error Unexpected endian value
#endif
#if __ORDER_BIG_ENDIAN__ != 4321
#error Unexpected endian value
#endif
#define GBS_BYTE_ORDER __BYTE_ORDER__
#define GBS_ORDER_LITTLE_ENDIAN __ORDER_LITTLE_ENDIAN__
#define GBS_ORDER_BIG_ENDIAN __ORDER_BIG_ENDIAN__
static inline long is_le_machine() {
return __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__;
}
static inline long is_be_machine() {
return __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__;
}
#endif
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