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Location: cpp/openttd-patchpack/source/music/win32.c
r2171:969c16b625b3
2.7 KiB
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(svn r2685) -Codechange: Split the music/sound/video drivers into separate files and move them into subfolders.
This results in shorter and hopefully easier to maintain files.
Note: I had to change paths in #include statements of some unrelated files, because I added the ottd base directory to the include path (-I.)
This results in shorter and hopefully easier to maintain files.
Note: I had to change paths in #include statements of some unrelated files, because I added the ottd base directory to the include path (-I.)
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 | #include "stdafx.h"
#include "openttd.h"
#include "music/win32.h"
#include <windows.h>
static struct {
bool stop_song;
bool terminate;
bool playing;
int new_vol;
HANDLE wait_obj;
char start_song[260];
} _midi;
static void Win32MidiPlaySong(const char *filename)
{
strcpy(_midi.start_song, filename);
_midi.playing = true;
_midi.stop_song = false;
SetEvent(_midi.wait_obj);
}
static void Win32MidiStopSong(void)
{
if (_midi.playing) {
_midi.stop_song = true;
_midi.start_song[0] = '\0';
SetEvent(_midi.wait_obj);
}
}
static bool Win32MidiIsSongPlaying(void)
{
return _midi.playing;
}
static void Win32MidiSetVolume(byte vol)
{
_midi.new_vol = vol;
SetEvent(_midi.wait_obj);
}
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 mciSendStringA(buf, NULL, 0, 0);
}
static bool MidiIntPlaySong(const char *filename)
{
MidiSendCommand("close all");
if (MidiSendCommand("open \"%s\" type sequencer alias song", filename) != 0)
return false;
if (MidiSendCommand("play song from 0") != 0)
return false;
return true;
}
static void MidiIntStopSong(void)
{
MidiSendCommand("close all");
}
static void MidiIntSetVolume(int vol)
{
uint v = (vol * 65535 / 127);
midiOutSetVolume((HMIDIOUT)-1, v + (v << 16));
}
static bool MidiIntIsSongPlaying(void)
{
char buf[16];
mciSendStringA("status song mode", buf, sizeof(buf), 0);
return strcmp(buf, "playing") == 0 || strcmp(buf, "seeking") == 0;
}
static DWORD WINAPI MidiThread(LPVOID arg)
{
_midi.wait_obj = CreateEvent(NULL, FALSE, FALSE, NULL);
do {
char *s;
int vol;
vol = _midi.new_vol;
if (vol != -1) {
_midi.new_vol = -1;
MidiIntSetVolume(vol);
}
s = _midi.start_song;
if (s[0] != '\0') {
_midi.playing = MidiIntPlaySong(s);
s[0] = '\0';
// Delay somewhat in case we don't manage to play.
if (!_midi.playing) {
Sleep(5000);
}
}
if (_midi.stop_song && _midi.playing) {
_midi.stop_song = false;
_midi.playing = false;
MidiIntStopSong();
}
if (_midi.playing && !MidiIntIsSongPlaying())
_midi.playing = false;
WaitForMultipleObjects(1, &_midi.wait_obj, FALSE, 1000);
} while (!_midi.terminate);
DeleteObject(_midi.wait_obj);
return 0;
}
static const char *Win32MidiStart(const char * const *parm)
{
DWORD threadId;
memset(&_midi, 0, sizeof(_midi));
_midi.new_vol = -1;
CreateThread(NULL, 8192, MidiThread, 0, 0, &threadId);
return 0;
}
static void Win32MidiStop(void)
{
_midi.terminate = true;
SetEvent(_midi.wait_obj);
}
const HalMusicDriver _win32_music_driver = {
Win32MidiStart,
Win32MidiStop,
Win32MidiPlaySong,
Win32MidiStopSong,
Win32MidiIsSongPlaying,
Win32MidiSetVolume,
};
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