1 files changed, 88 insertions, 0 deletions
diff --git a/plugins/gme/game-music-emu-0.6pre/gme/s_logtbl.c b/plugins/gme/game-music-emu-0.6pre/gme/s_logtbl.c
new file mode 100644
index 00000000..0f455f2b
--- /dev/null
+++ b/plugins/gme/game-music-emu-0.6pre/gme/s_logtbl.c
@@ -0,0 +1,88 @@
+#include "nestypes.h"
+#include "s_logtbl.h"
+
+#if STATIC_TABLES
+
+static void LogTableRelease(void *ctx)
+{
+}
+
+static KMIF_LOGTABLE log_static_tables = {
+	&log_static_tables;
+	LogTableRelease,
+#include "s_logt.h"
+};
+
+
+KMIF_LOGTABLE *LogTableAddRef(void)
+{
+	log_static_tables.release = LogTableRelease;
+	return &log_static_tables;
+}
+
+#else
+
+#include <math.h>
+
+static volatile Uint32 log_tables_mutex = 0;
+static Uint32 log_tables_refcount = 0;
+static KMIF_LOGTABLE *log_tables = 0;
+
+static void LogTableRelease(void *ctx)
+{
+	++log_tables_mutex;
+	while (log_tables_mutex != 1)
+	{
+		XSLEEP(0);
+	}
+	log_tables_refcount--;
+	if (!log_tables_refcount)
+	{
+		XFREE(ctx);
+		log_tables = 0;
+	}
+	--log_tables_mutex;
+}
+
+static void LogTableCalc(KMIF_LOGTABLE *kmif_lt)
+{
+	Uint32 i;
+	double a;
+	for (i = 0; i < (1 << LOG_BITS); i++)
+	{
+		a = (1 << LOG_LIN_BITS) / pow(2, i / (double)(1 << LOG_BITS));
+		kmif_lt->logtbl[i] = (Uint32)a;
+	}
+	kmif_lt->lineartbl[0] = LOG_LIN_BITS << LOG_BITS;
+	for (i = 1; i < (1 << LIN_BITS) + 1; i++)
+	{
+		Uint32 ua;
+		a = i << (LOG_LIN_BITS - LIN_BITS);
+		ua = (Uint32)((LOG_LIN_BITS - (log(a) / log(2))) * (1 << LOG_BITS));
+		kmif_lt->lineartbl[i] = ua << 1;
+	}
+}
+
+KMIF_LOGTABLE *LogTableAddRef(void)
+{
+	++log_tables_mutex;
+	while (log_tables_mutex != 1)
+	{
+		XSLEEP(0);
+	}
+	if (!log_tables_refcount)
+	{
+		log_tables = (KMIF_LOGTABLE*) XMALLOC(sizeof(KMIF_LOGTABLE));
+		if (log_tables)
+		{
+			log_tables->ctx = log_tables;
+			log_tables->release = LogTableRelease;
+			LogTableCalc(log_tables);
+		}
+	}
+	if (log_tables) log_tables_refcount++;
+	--log_tables_mutex;
+	return log_tables;
+}
+
+#endif