(svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)

src/music/os2_m.cpp

@@ -0,0 +1,77 @@
+/* $Id$ */
+
+#include "../stdafx.h"
+#include "../openttd.h"
+#include "os2_m.h"
+
+#define INCL_DOS
+#define INCL_OS2MM
+#define INCL_WIN
+
+#include <stdarg.h>
+#include <os2.h>
+#include <os2me.h>
+
+/**********************
+ * OS/2 MIDI PLAYER
+ **********************/
+
+/* Interesting how similar the MCI API in OS/2 is to the Win32 MCI API,
+ * eh? Anyone would think they both came from the same place originally! ;)
+ */
+
+static long CDECL MidiSendCommand(const char *cmd, ...)
+{
+	va_list va;
+	char buf[512];
+	va_start(va, cmd);
+	vsprintf(buf, cmd, va);
+	va_end(va);
+	return mciSendString(buf, NULL, 0, NULL, 0);
+}
+
+static void OS2MidiPlaySong(const char *filename)
+{
+	MidiSendCommand("close all");
+
+	if (MidiSendCommand("open %s type sequencer alias song", filename) != 0)
+		return;
+
+	MidiSendCommand("play song from 0");
+}
+
+static void OS2MidiStopSong(void)
+{
+	MidiSendCommand("close all");
+}
+
+static void OS2MidiSetVolume(byte vol)
+{
+	MidiSendCommand("set song audio volume %d", ((vol/127)*100));
+}
+
+static bool OS2MidiIsSongPlaying(void)
+{
+	char buf[16];
+	mciSendString("status song mode", buf, sizeof(buf), NULL, 0);
+	return strcmp(buf, "playing") == 0 || strcmp(buf, "seeking") == 0;
+}
+
+static const char *OS2MidiStart(const char * const *parm)
+{
+	return 0;
+}
+
+static void OS2MidiStop(void)
+{
+	MidiSendCommand("close all");
+}
+
+const HalMusicDriver _os2_music_driver = {
+	OS2MidiStart,
+	OS2MidiStop,
+	OS2MidiPlaySong,
+	OS2MidiStopSong,
+	OS2MidiIsSongPlaying,
+	OS2MidiSetVolume,
+};