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audio: get rid of the myAudioDevicesEnabled array

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It just made things more confusing.  We'll just store
the states in playerData_pd->audioDevicesStates and be
done with it (it's a unsigned byte now).

git-svn-id: https://svn.musicpd.org/mpd/trunk@4514 09075e82-0dd4-0310-85a5-a0d7c8717e4f
This commit is contained in:
Eric Wong 2006-08-01 10:07:12 +00:00
parent c22a53d373
commit b0965c317b
3 changed files with 78 additions and 66 deletions
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138
src/audio.c
View File

@ -46,10 +46,15 @@ static AudioFormat *audio_configFormat = NULL;
static AudioOutput **audioOutputArray = NULL;
static mpd_uint8 audioOutputArraySize = 0;
#define DEVICE_OFF 0x00
#define DEVICE_ENABLE 0x01 /* currently off, but to be turned on */
#define DEVICE_ON 0x03
#define DEVICE_DISABLE 0x04 /* currently on, but to be turned off */
/* the audioEnabledArray should be stuck into shared memory, and then disable
and enable in playAudio() routine */
static mpd_sint8 *pdAudioDevicesEnabled = NULL;
static mpd_sint8 *myAudioDevicesEnabled = NULL;
static mpd_uint8 *audioDeviceStates = NULL;
static mpd_uint8 audioOpened = 0;
@ -114,12 +119,9 @@ void initAudioDriver(void)
loadAudioDrivers();
audioOutputArraySize = audio_device_count();
pdAudioDevicesEnabled = (getPlayerData())->audioDeviceEnabled;
audioDeviceStates = (getPlayerData())->audioDeviceStates;
audioOutputArray = malloc(sizeof(AudioOutput *) * audioOutputArraySize);
myAudioDevicesEnabled = malloc(sizeof(mpd_sint8)*audioOutputArraySize);
for (i = 0; i < audioOutputArraySize; i++)
myAudioDevicesEnabled[i] = pdAudioDevicesEnabled[i] = 1;
i = 0;
param = getNextConfigParam(CONF_AUDIO_OUTPUT, param);
@ -143,6 +145,7 @@ void initAudioDriver(void)
exit(EXIT_FAILURE);
}
}
audioDeviceStates[i] = DEVICE_ENABLE;
audioOutputArray[i++] = output;
} while ((param = getNextConfigParam(CONF_AUDIO_OUTPUT, param)));
}
@ -269,23 +272,6 @@ int isCurrentAudioFormat(AudioFormat * audioFormat)
return 1;
}
static void syncAudioDevicesEnabledArrays(void)
{
int i;
memcpy(myAudioDevicesEnabled, pdAudioDevicesEnabled,
audioOutputArraySize);
for (i = 0; i < audioOutputArraySize; i++) {
if (myAudioDevicesEnabled[i]) {
openAudioOutput(audioOutputArray[i], &audio_format);
} else {
dropBufferedAudioOutput(audioOutputArray[i]);
closeAudioOutput(audioOutputArray[i]);
}
}
}
static int flushAudioBuffer(void)
{
int ret = -1;
@ -294,22 +280,28 @@ static int flushAudioBuffer(void)
if (audioBufferPos == 0)
return 0;
if (0 != memcmp(pdAudioDevicesEnabled, myAudioDevicesEnabled,
audioOutputArraySize)) {
syncAudioDevicesEnabledArrays();
}
for (i = 0; i < audioOutputArraySize; i++) {
if (!myAudioDevicesEnabled[i])
continue;
err = playAudioOutput(audioOutputArray[i], audioBuffer,
audioBufferPos);
if (!err)
ret = 0;
else if (err < 0)
/* device should already be closed if the play func
* returned an error */
myAudioDevicesEnabled[i] = 0;
for (i = audioOutputArraySize; --i >= 0; ) {
switch (audioDeviceStates[i]) {
case DEVICE_ENABLE:
openAudioOutput(audioOutputArray[i], &audio_format);
audioDeviceStates[i] = DEVICE_ON;
/* fall-through */
case DEVICE_ON:
err = playAudioOutput(audioOutputArray[i], audioBuffer,
audioBufferPos);
if (!err)
ret = 0;
else if (err < 0)
/* device should already be closed if the play
* func returned an error */
audioDeviceStates[i] = DEVICE_OFF;
break;
case DEVICE_DISABLE:
dropBufferedAudioOutput(audioOutputArray[i]);
closeAudioOutput(audioOutputArray[i]);
audioDeviceStates[i] = DEVICE_OFF;
break;
}
}
audioBufferPos = 0;
@ -335,18 +327,28 @@ int openAudioDevice(AudioFormat * audioFormat)
audioBuffer = realloc(audioBuffer, audioBufferSize);
}
syncAudioDevicesEnabledArrays();
for (i = 0; i < audioOutputArraySize; i++) {
if (audioOutputArray[i]->open)
for (i = audioOutputArraySize; --i >= 0; ) {
switch (audioDeviceStates[i]) {
case DEVICE_ENABLE:
openAudioOutput(audioOutputArray[i], &audio_format);
audioDeviceStates[i] = DEVICE_ON;
/* fall-through */
case DEVICE_ON:
ret = 0;
break;
case DEVICE_DISABLE:
dropBufferedAudioOutput(audioOutputArray[i]);
closeAudioOutput(audioOutputArray[i]);
audioDeviceStates[i] = DEVICE_OFF;
break;
}
}
if (ret == 0)
audioOpened = 1;
else {
/* close all devices if there was an error */
for (i = 0; i < audioOutputArraySize; i++) {
for (i = audioOutputArraySize; --i >= 0; ) {
closeAudioOutput(audioOutputArray[i]);
}
@ -387,17 +389,24 @@ void dropBufferedAudio(void)
{
int i;
if (0 != memcmp(pdAudioDevicesEnabled, myAudioDevicesEnabled,
audioOutputArraySize)) {
syncAudioDevicesEnabledArrays();
}
audioBufferPos = 0;
for (i = 0; i < audioOutputArraySize; i++) {
if (!myAudioDevicesEnabled[i])
continue;
dropBufferedAudioOutput(audioOutputArray[i]);
for (i = audioOutputArraySize; --i >= 0; ) {
switch (audioDeviceStates[i]) {
case DEVICE_ON:
dropBufferedAudioOutput(audioOutputArray[i]);
break;
case DEVICE_ENABLE:
openAudioOutput(audioOutputArray[i], &audio_format);
audioDeviceStates[i] = DEVICE_ON;
/* there's no point in dropping audio for something
* we just enabled */
break;
case DEVICE_DISABLE:
dropBufferedAudioOutput(audioOutputArray[i]);
closeAudioOutput(audioOutputArray[i]);
audioDeviceStates[i] = DEVICE_OFF;
break;
}
}
}
@ -411,7 +420,7 @@ void closeAudioDevice(void)
audioBuffer = NULL;
audioBufferSize = 0;
for (i = 0; i < audioOutputArraySize; i++) {
for (i = audioOutputArraySize; --i >= 0; ) {
closeAudioOutput(audioOutputArray[i]);
}
@ -422,7 +431,7 @@ void sendMetadataToAudioDevice(MpdTag * tag)
{
int i;
for (i = 0; i < audioOutputArraySize; i++) {
for (i = audioOutputArraySize; --i >= 0; ) {
sendMetadataToAudioOutput(audioOutputArray[i], tag);
}
}
@ -435,7 +444,8 @@ int enableAudioDevice(int fd, int device)
return -1;
}
pdAudioDevicesEnabled[device] = 1;
if (!(audioDeviceStates[device] & 0x01))
audioDeviceStates[device] = DEVICE_ENABLE;
return 0;
}
@ -447,8 +457,8 @@ int disableAudioDevice(int fd, int device)
"doesn't exist\n", device);
return -1;
}
pdAudioDevicesEnabled[device] = 0;
if (audioDeviceStates[device] & 0x01)
audioDeviceStates[device] = DEVICE_DISABLE;
return 0;
}
@ -462,7 +472,7 @@ void printAudioDevices(int fd)
"outputid: %i\noutputname: %s\noutputenabled: %i\n",
i,
audioOutputArray[i]->name,
(int)pdAudioDevicesEnabled[i]);
audioDeviceStates[i] & 0x01);
}
}
@ -473,7 +483,7 @@ void saveAudioDevicesState(FILE *fp)
assert(audioOutputArraySize != 0);
for (i = 0; i < audioOutputArraySize; i++) {
fprintf(fp, AUDIO_DEVICE_STATE "%d:%s\n",
(int)pdAudioDevicesEnabled[i],
audioDeviceStates[i] & 0x01,
audioOutputArray[i]->name);
}
}
@ -499,9 +509,11 @@ void readAudioDevicesState(FILE *fp)
if (!name || !(++name))
goto errline;
for (i = audioOutputArraySize - 1; i >= 0; --i) {
for (i = audioOutputArraySize; --i >= 0; ) {
if (!strcmp(name, audioOutputArray[i]->name)) {
pdAudioDevicesEnabled[i] = atoi(c);
/* devices default to on */
if (!atoi(c))
audioDeviceStates[i] = DEVICE_DISABLE;
break;
}
}

4
src/playerData.c
View File

@ -92,7 +92,7 @@ void initPlayerData(void)
allocationSize += buffered_chunks * sizeof(mpd_sint8); /*for metaChunk */
allocationSize += sizeof(PlayerData); /*for playerData struct */
/* for audioDeviceEnabled[] */
/* for audioDeviceStates[] */
allocationSize += device_array_size;
if ((shmid = shmget(IPC_PRIVATE, allocationSize, IPC_CREAT | 0600)) < 0) {
@ -108,7 +108,7 @@ void initPlayerData(void)
exit(EXIT_FAILURE);
}
playerData_pd->audioDeviceEnabled = (char *)playerData_pd +
playerData_pd->audioDeviceStates = (mpd_uint8 *)playerData_pd +
allocationSize - device_array_size;
buffer = &(playerData_pd->buffer);

2
src/playerData.h
View File

@ -37,7 +37,7 @@ typedef struct _PlayerData {
OutputBuffer buffer;
PlayerControl playerControl;
DecoderControl decoderControl;
mpd_sint8 *audioDeviceEnabled;
mpd_uint8 *audioDeviceStates;
int pid;
} PlayerData;