SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
--HG-- extra : convert_revision : svn%3Ac70aab31-4412-0410-b14c-859654838e24/trunk%401938
This commit is contained in:
Sam Lantinga
parent
91a32b77a2
commit
0f030a1802
686 changed files with 117556 additions and 98661 deletions
|
|
@ -32,9 +32,10 @@
|
|||
#define BUFFER_EMPTY 0
|
||||
#define BUFFER_USED 1
|
||||
|
||||
typedef struct _tMixBufferDesc {
|
||||
int iBufferUsage; // BUFFER_EMPTY or BUFFER_USED
|
||||
SDL_AudioDevice *pSDLAudioDevice;
|
||||
typedef struct _tMixBufferDesc
|
||||
{
|
||||
int iBufferUsage; // BUFFER_EMPTY or BUFFER_USED
|
||||
SDL_AudioDevice *pSDLAudioDevice;
|
||||
} tMixBufferDesc, *pMixBufferDesc;
|
||||
|
||||
|
||||
|
|
@ -44,70 +45,67 @@ typedef struct _tMixBufferDesc {
|
|||
// This function is called by DART, when an event occures, like end of
|
||||
// playback of a buffer, etc...
|
||||
//---------------------------------------------------------------------
|
||||
LONG APIENTRY DARTEventFunc(ULONG ulStatus,
|
||||
PMCI_MIX_BUFFER pBuffer,
|
||||
ULONG ulFlags)
|
||||
LONG APIENTRY
|
||||
DARTEventFunc(ULONG ulStatus, PMCI_MIX_BUFFER pBuffer, ULONG ulFlags)
|
||||
{
|
||||
if (ulFlags && MIX_WRITE_COMPLETE)
|
||||
{ // Playback of buffer completed!
|
||||
if (ulFlags && MIX_WRITE_COMPLETE) { // Playback of buffer completed!
|
||||
|
||||
// Get pointer to buffer description
|
||||
pMixBufferDesc pBufDesc;
|
||||
// Get pointer to buffer description
|
||||
pMixBufferDesc pBufDesc;
|
||||
|
||||
if (pBuffer)
|
||||
{
|
||||
pBufDesc = (pMixBufferDesc) (*pBuffer).ulUserParm;
|
||||
if (pBuffer) {
|
||||
pBufDesc = (pMixBufferDesc) (*pBuffer).ulUserParm;
|
||||
|
||||
if (pBufDesc)
|
||||
{
|
||||
SDL_AudioDevice *pSDLAudioDevice = pBufDesc->pSDLAudioDevice;
|
||||
// Set the buffer to be empty
|
||||
pBufDesc->iBufferUsage = BUFFER_EMPTY;
|
||||
// And notify DART feeder thread that it will have to work a bit.
|
||||
if (pSDLAudioDevice)
|
||||
DosPostEventSem(pSDLAudioDevice->hidden->hevAudioBufferPlayed);
|
||||
}
|
||||
if (pBufDesc) {
|
||||
SDL_AudioDevice *pSDLAudioDevice = pBufDesc->pSDLAudioDevice;
|
||||
// Set the buffer to be empty
|
||||
pBufDesc->iBufferUsage = BUFFER_EMPTY;
|
||||
// And notify DART feeder thread that it will have to work a bit.
|
||||
if (pSDLAudioDevice)
|
||||
DosPostEventSem(pSDLAudioDevice->hidden->
|
||||
hevAudioBufferPlayed);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
return TRUE;
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
|
||||
int DART_OpenAudio(_THIS, SDL_AudioSpec *spec)
|
||||
int
|
||||
DART_OpenAudio(_THIS, SDL_AudioSpec * spec)
|
||||
{
|
||||
MCI_AMP_OPEN_PARMS AmpOpenParms;
|
||||
MCI_GENERIC_PARMS GenericParms;
|
||||
int iDeviceOrd = 0; // Default device to be used
|
||||
int bOpenShared = 1; // Try opening it shared
|
||||
int iBits = 16; // Default is 16 bits signed
|
||||
int iFreq = 44100; // Default is 44KHz
|
||||
int iChannels = 2; // Default is 2 channels (Stereo)
|
||||
int iNumBufs = 2; // Number of audio buffers: 2
|
||||
int iBufSize;
|
||||
int iOpenMode;
|
||||
int iSilence;
|
||||
int rc;
|
||||
MCI_AMP_OPEN_PARMS AmpOpenParms;
|
||||
MCI_GENERIC_PARMS GenericParms;
|
||||
int iDeviceOrd = 0; // Default device to be used
|
||||
int bOpenShared = 1; // Try opening it shared
|
||||
int iBits = 16; // Default is 16 bits signed
|
||||
int iFreq = 44100; // Default is 44KHz
|
||||
int iChannels = 2; // Default is 2 channels (Stereo)
|
||||
int iNumBufs = 2; // Number of audio buffers: 2
|
||||
int iBufSize;
|
||||
int iOpenMode;
|
||||
int iSilence;
|
||||
int rc;
|
||||
|
||||
// First thing is to try to open a given DART device!
|
||||
SDL_memset(&AmpOpenParms, 0, sizeof(MCI_AMP_OPEN_PARMS));
|
||||
// pszDeviceType should contain the device type in low word, and device ordinal in high word!
|
||||
AmpOpenParms.pszDeviceType = (PSZ) (MCI_DEVTYPE_AUDIO_AMPMIX | (iDeviceOrd << 16));
|
||||
// First thing is to try to open a given DART device!
|
||||
SDL_memset(&AmpOpenParms, 0, sizeof(MCI_AMP_OPEN_PARMS));
|
||||
// pszDeviceType should contain the device type in low word, and device ordinal in high word!
|
||||
AmpOpenParms.pszDeviceType =
|
||||
(PSZ) (MCI_DEVTYPE_AUDIO_AMPMIX | (iDeviceOrd << 16));
|
||||
|
||||
iOpenMode = MCI_WAIT | MCI_OPEN_TYPE_ID;
|
||||
if (bOpenShared) iOpenMode |= MCI_OPEN_SHAREABLE;
|
||||
iOpenMode = MCI_WAIT | MCI_OPEN_TYPE_ID;
|
||||
if (bOpenShared)
|
||||
iOpenMode |= MCI_OPEN_SHAREABLE;
|
||||
|
||||
rc = mciSendCommand( 0, MCI_OPEN,
|
||||
iOpenMode,
|
||||
(PVOID) &AmpOpenParms, 0);
|
||||
if (rc!=MCIERR_SUCCESS) // No audio available??
|
||||
return (-1);
|
||||
// Save the device ID we got from DART!
|
||||
// We will use this in the next calls!
|
||||
iDeviceOrd = AmpOpenParms.usDeviceID;
|
||||
rc = mciSendCommand(0, MCI_OPEN, iOpenMode, (PVOID) & AmpOpenParms, 0);
|
||||
if (rc != MCIERR_SUCCESS) // No audio available??
|
||||
return (-1);
|
||||
// Save the device ID we got from DART!
|
||||
// We will use this in the next calls!
|
||||
iDeviceOrd = AmpOpenParms.usDeviceID;
|
||||
|
||||
// Determine the audio parameters from the AudioSpec
|
||||
switch ( spec->format & 0xFF )
|
||||
{
|
||||
// Determine the audio parameters from the AudioSpec
|
||||
switch (spec->format & 0xFF) {
|
||||
case 8:
|
||||
/* Unsigned 8 bit audio data */
|
||||
spec->format = AUDIO_U8;
|
||||
|
|
@ -124,303 +122,333 @@ int DART_OpenAudio(_THIS, SDL_AudioSpec *spec)
|
|||
// Close DART, and exit with error code!
|
||||
mciSendCommand(iDeviceOrd, MCI_CLOSE, MCI_WAIT, &GenericParms, 0);
|
||||
SDL_SetError("Unsupported audio format");
|
||||
return(-1);
|
||||
}
|
||||
iFreq = spec->freq;
|
||||
iChannels = spec->channels;
|
||||
/* Update the fragment size as size in bytes */
|
||||
SDL_CalculateAudioSpec(spec);
|
||||
iBufSize = spec->size;
|
||||
return (-1);
|
||||
}
|
||||
iFreq = spec->freq;
|
||||
iChannels = spec->channels;
|
||||
/* Update the fragment size as size in bytes */
|
||||
SDL_CalculateAudioSpec(spec);
|
||||
iBufSize = spec->size;
|
||||
|
||||
// Now query this device if it supports the given freq/bits/channels!
|
||||
SDL_memset(&(_this->hidden->MixSetupParms), 0, sizeof(MCI_MIXSETUP_PARMS));
|
||||
_this->hidden->MixSetupParms.ulBitsPerSample = iBits;
|
||||
_this->hidden->MixSetupParms.ulFormatTag = MCI_WAVE_FORMAT_PCM;
|
||||
_this->hidden->MixSetupParms.ulSamplesPerSec = iFreq;
|
||||
_this->hidden->MixSetupParms.ulChannels = iChannels;
|
||||
_this->hidden->MixSetupParms.ulFormatMode = MCI_PLAY;
|
||||
_this->hidden->MixSetupParms.ulDeviceType = MCI_DEVTYPE_WAVEFORM_AUDIO;
|
||||
_this->hidden->MixSetupParms.pmixEvent = DARTEventFunc;
|
||||
rc = mciSendCommand (iDeviceOrd, MCI_MIXSETUP,
|
||||
MCI_WAIT | MCI_MIXSETUP_QUERYMODE,
|
||||
&(_this->hidden->MixSetupParms), 0);
|
||||
if (rc!=MCIERR_SUCCESS)
|
||||
{ // The device cannot handle this format!
|
||||
// Close DART, and exit with error code!
|
||||
mciSendCommand(iDeviceOrd, MCI_CLOSE, MCI_WAIT, &GenericParms, 0);
|
||||
SDL_SetError("Audio device doesn't support requested audio format");
|
||||
return(-1);
|
||||
}
|
||||
// The device can handle this format, so initialize!
|
||||
rc = mciSendCommand(iDeviceOrd, MCI_MIXSETUP,
|
||||
MCI_WAIT | MCI_MIXSETUP_INIT,
|
||||
&(_this->hidden->MixSetupParms), 0);
|
||||
if (rc!=MCIERR_SUCCESS)
|
||||
{ // The device could not be opened!
|
||||
// Close DART, and exit with error code!
|
||||
mciSendCommand(iDeviceOrd, MCI_CLOSE, MCI_WAIT, &GenericParms, 0);
|
||||
SDL_SetError("Audio device could not be set up");
|
||||
return(-1);
|
||||
}
|
||||
// Ok, the device is initialized.
|
||||
// Now we should allocate buffers. For this, we need a place where
|
||||
// the buffer descriptors will be:
|
||||
_this->hidden->pMixBuffers = (MCI_MIX_BUFFER *) SDL_malloc(sizeof(MCI_MIX_BUFFER)*iNumBufs);
|
||||
if (!(_this->hidden->pMixBuffers))
|
||||
{ // Not enough memory!
|
||||
// Close DART, and exit with error code!
|
||||
mciSendCommand(iDeviceOrd, MCI_CLOSE, MCI_WAIT, &GenericParms, 0);
|
||||
SDL_SetError("Not enough memory for audio buffer descriptors");
|
||||
return(-1);
|
||||
}
|
||||
// Now that we have the place for buffer list, we can ask DART for the
|
||||
// buffers!
|
||||
_this->hidden->BufferParms.ulNumBuffers = iNumBufs; // Number of buffers
|
||||
_this->hidden->BufferParms.ulBufferSize = iBufSize; // each with this size
|
||||
_this->hidden->BufferParms.pBufList = _this->hidden->pMixBuffers; // getting descriptorts into this list
|
||||
// Allocate buffers!
|
||||
rc = mciSendCommand(iDeviceOrd, MCI_BUFFER,
|
||||
MCI_WAIT | MCI_ALLOCATE_MEMORY,
|
||||
&(_this->hidden->BufferParms), 0);
|
||||
if ((rc!=MCIERR_SUCCESS) || (iNumBufs != _this->hidden->BufferParms.ulNumBuffers) || (_this->hidden->BufferParms.ulBufferSize==0))
|
||||
{ // Could not allocate memory!
|
||||
// Close DART, and exit with error code!
|
||||
SDL_free(_this->hidden->pMixBuffers); _this->hidden->pMixBuffers = NULL;
|
||||
mciSendCommand(iDeviceOrd, MCI_CLOSE, MCI_WAIT, &GenericParms, 0);
|
||||
SDL_SetError("DART could not allocate buffers");
|
||||
return(-1);
|
||||
}
|
||||
// Ok, we have all the buffers allocated, let's mark them!
|
||||
{
|
||||
int i;
|
||||
for (i=0; i<iNumBufs; i++)
|
||||
{
|
||||
pMixBufferDesc pBufferDesc = (pMixBufferDesc) SDL_malloc(sizeof(tMixBufferDesc));;
|
||||
// Check if this buffer was really allocated by DART
|
||||
if ((!(_this->hidden->pMixBuffers[i].pBuffer)) || (!pBufferDesc))
|
||||
{ // Wrong buffer!
|
||||
// Now query this device if it supports the given freq/bits/channels!
|
||||
SDL_memset(&(_this->hidden->MixSetupParms), 0,
|
||||
sizeof(MCI_MIXSETUP_PARMS));
|
||||
_this->hidden->MixSetupParms.ulBitsPerSample = iBits;
|
||||
_this->hidden->MixSetupParms.ulFormatTag = MCI_WAVE_FORMAT_PCM;
|
||||
_this->hidden->MixSetupParms.ulSamplesPerSec = iFreq;
|
||||
_this->hidden->MixSetupParms.ulChannels = iChannels;
|
||||
_this->hidden->MixSetupParms.ulFormatMode = MCI_PLAY;
|
||||
_this->hidden->MixSetupParms.ulDeviceType = MCI_DEVTYPE_WAVEFORM_AUDIO;
|
||||
_this->hidden->MixSetupParms.pmixEvent = DARTEventFunc;
|
||||
rc = mciSendCommand(iDeviceOrd, MCI_MIXSETUP,
|
||||
MCI_WAIT | MCI_MIXSETUP_QUERYMODE,
|
||||
&(_this->hidden->MixSetupParms), 0);
|
||||
if (rc != MCIERR_SUCCESS) { // The device cannot handle this format!
|
||||
// Close DART, and exit with error code!
|
||||
// Free buffer descriptions
|
||||
{ int j;
|
||||
for (j=0; j<i; j++) SDL_free((void *)(_this->hidden->pMixBuffers[j].ulUserParm));
|
||||
}
|
||||
// and cleanup
|
||||
mciSendCommand(iDeviceOrd, MCI_BUFFER, MCI_WAIT | MCI_DEALLOCATE_MEMORY, &(_this->hidden->BufferParms), 0);
|
||||
SDL_free(_this->hidden->pMixBuffers); _this->hidden->pMixBuffers = NULL;
|
||||
mciSendCommand(iDeviceOrd, MCI_CLOSE, MCI_WAIT, &GenericParms, 0);
|
||||
SDL_SetError("Error at internal buffer check");
|
||||
return(-1);
|
||||
}
|
||||
pBufferDesc->iBufferUsage = BUFFER_EMPTY;
|
||||
pBufferDesc->pSDLAudioDevice = _this;
|
||||
|
||||
_this->hidden->pMixBuffers[i].ulBufferLength = _this->hidden->BufferParms.ulBufferSize;
|
||||
_this->hidden->pMixBuffers[i].ulUserParm = (ULONG) pBufferDesc; // User parameter: Description of buffer
|
||||
_this->hidden->pMixBuffers[i].ulFlags = 0; // Some stuff should be flagged here for DART, like end of
|
||||
// audio data, but as we will continously send
|
||||
// audio data, there will be no end.:)
|
||||
SDL_memset(_this->hidden->pMixBuffers[i].pBuffer, iSilence, iBufSize);
|
||||
SDL_SetError("Audio device doesn't support requested audio format");
|
||||
return (-1);
|
||||
}
|
||||
}
|
||||
_this->hidden->iNextFreeBuffer = 0;
|
||||
_this->hidden->iLastPlayedBuf = -1;
|
||||
// Create event semaphore
|
||||
if (DosCreateEventSem(NULL, &(_this->hidden->hevAudioBufferPlayed), 0, FALSE)!=NO_ERROR)
|
||||
{
|
||||
// Could not create event semaphore!
|
||||
// The device can handle this format, so initialize!
|
||||
rc = mciSendCommand(iDeviceOrd, MCI_MIXSETUP,
|
||||
MCI_WAIT | MCI_MIXSETUP_INIT,
|
||||
&(_this->hidden->MixSetupParms), 0);
|
||||
if (rc != MCIERR_SUCCESS) { // The device could not be opened!
|
||||
// Close DART, and exit with error code!
|
||||
mciSendCommand(iDeviceOrd, MCI_CLOSE, MCI_WAIT, &GenericParms, 0);
|
||||
SDL_SetError("Audio device could not be set up");
|
||||
return (-1);
|
||||
}
|
||||
// Ok, the device is initialized.
|
||||
// Now we should allocate buffers. For this, we need a place where
|
||||
// the buffer descriptors will be:
|
||||
_this->hidden->pMixBuffers =
|
||||
(MCI_MIX_BUFFER *) SDL_malloc(sizeof(MCI_MIX_BUFFER) * iNumBufs);
|
||||
if (!(_this->hidden->pMixBuffers)) { // Not enough memory!
|
||||
// Close DART, and exit with error code!
|
||||
mciSendCommand(iDeviceOrd, MCI_CLOSE, MCI_WAIT, &GenericParms, 0);
|
||||
SDL_SetError("Not enough memory for audio buffer descriptors");
|
||||
return (-1);
|
||||
}
|
||||
// Now that we have the place for buffer list, we can ask DART for the
|
||||
// buffers!
|
||||
_this->hidden->BufferParms.ulNumBuffers = iNumBufs; // Number of buffers
|
||||
_this->hidden->BufferParms.ulBufferSize = iBufSize; // each with this size
|
||||
_this->hidden->BufferParms.pBufList = _this->hidden->pMixBuffers; // getting descriptorts into this list
|
||||
// Allocate buffers!
|
||||
rc = mciSendCommand(iDeviceOrd, MCI_BUFFER,
|
||||
MCI_WAIT | MCI_ALLOCATE_MEMORY,
|
||||
&(_this->hidden->BufferParms), 0);
|
||||
if ((rc != MCIERR_SUCCESS)
|
||||
|| (iNumBufs != _this->hidden->BufferParms.ulNumBuffers)
|
||||
|| (_this->hidden->BufferParms.ulBufferSize == 0)) { // Could not allocate memory!
|
||||
// Close DART, and exit with error code!
|
||||
SDL_free(_this->hidden->pMixBuffers);
|
||||
_this->hidden->pMixBuffers = NULL;
|
||||
mciSendCommand(iDeviceOrd, MCI_CLOSE, MCI_WAIT, &GenericParms, 0);
|
||||
SDL_SetError("DART could not allocate buffers");
|
||||
return (-1);
|
||||
}
|
||||
// Ok, we have all the buffers allocated, let's mark them!
|
||||
{
|
||||
int i;
|
||||
for (i=0; i<iNumBufs; i++) SDL_free((void *)(_this->hidden->pMixBuffers[i].ulUserParm));
|
||||
int i;
|
||||
for (i = 0; i < iNumBufs; i++) {
|
||||
pMixBufferDesc pBufferDesc =
|
||||
(pMixBufferDesc) SDL_malloc(sizeof(tMixBufferDesc));;
|
||||
// Check if this buffer was really allocated by DART
|
||||
if ((!(_this->hidden->pMixBuffers[i].pBuffer))
|
||||
|| (!pBufferDesc)) { // Wrong buffer!
|
||||
// Close DART, and exit with error code!
|
||||
// Free buffer descriptions
|
||||
{
|
||||
int j;
|
||||
for (j = 0; j < i; j++)
|
||||
SDL_free((void *) (_this->hidden->pMixBuffers[j].
|
||||
ulUserParm));
|
||||
}
|
||||
// and cleanup
|
||||
mciSendCommand(iDeviceOrd, MCI_BUFFER,
|
||||
MCI_WAIT | MCI_DEALLOCATE_MEMORY,
|
||||
&(_this->hidden->BufferParms), 0);
|
||||
SDL_free(_this->hidden->pMixBuffers);
|
||||
_this->hidden->pMixBuffers = NULL;
|
||||
mciSendCommand(iDeviceOrd, MCI_CLOSE, MCI_WAIT,
|
||||
&GenericParms, 0);
|
||||
SDL_SetError("Error at internal buffer check");
|
||||
return (-1);
|
||||
}
|
||||
pBufferDesc->iBufferUsage = BUFFER_EMPTY;
|
||||
pBufferDesc->pSDLAudioDevice = _this;
|
||||
|
||||
_this->hidden->pMixBuffers[i].ulBufferLength =
|
||||
_this->hidden->BufferParms.ulBufferSize;
|
||||
_this->hidden->pMixBuffers[i].ulUserParm = (ULONG) pBufferDesc; // User parameter: Description of buffer
|
||||
_this->hidden->pMixBuffers[i].ulFlags = 0; // Some stuff should be flagged here for DART, like end of
|
||||
// audio data, but as we will continously send
|
||||
// audio data, there will be no end.:)
|
||||
SDL_memset(_this->hidden->pMixBuffers[i].pBuffer, iSilence,
|
||||
iBufSize);
|
||||
}
|
||||
}
|
||||
mciSendCommand(iDeviceOrd, MCI_BUFFER, MCI_WAIT | MCI_DEALLOCATE_MEMORY, &(_this->hidden->BufferParms), 0);
|
||||
SDL_free(_this->hidden->pMixBuffers); _this->hidden->pMixBuffers = NULL;
|
||||
mciSendCommand(iDeviceOrd, MCI_CLOSE, MCI_WAIT, &GenericParms, 0);
|
||||
SDL_SetError("Could not create event semaphore");
|
||||
return(-1);
|
||||
}
|
||||
_this->hidden->iNextFreeBuffer = 0;
|
||||
_this->hidden->iLastPlayedBuf = -1;
|
||||
// Create event semaphore
|
||||
if (DosCreateEventSem
|
||||
(NULL, &(_this->hidden->hevAudioBufferPlayed), 0, FALSE) != NO_ERROR)
|
||||
{
|
||||
// Could not create event semaphore!
|
||||
{
|
||||
int i;
|
||||
for (i = 0; i < iNumBufs; i++)
|
||||
SDL_free((void *) (_this->hidden->pMixBuffers[i].ulUserParm));
|
||||
}
|
||||
mciSendCommand(iDeviceOrd, MCI_BUFFER,
|
||||
MCI_WAIT | MCI_DEALLOCATE_MEMORY,
|
||||
&(_this->hidden->BufferParms), 0);
|
||||
SDL_free(_this->hidden->pMixBuffers);
|
||||
_this->hidden->pMixBuffers = NULL;
|
||||
mciSendCommand(iDeviceOrd, MCI_CLOSE, MCI_WAIT, &GenericParms, 0);
|
||||
SDL_SetError("Could not create event semaphore");
|
||||
return (-1);
|
||||
}
|
||||
// Store the new settings in global variables
|
||||
_this->hidden->iCurrDeviceOrd = iDeviceOrd;
|
||||
_this->hidden->iCurrFreq = iFreq;
|
||||
_this->hidden->iCurrBits = iBits;
|
||||
_this->hidden->iCurrChannels = iChannels;
|
||||
_this->hidden->iCurrNumBufs = iNumBufs;
|
||||
_this->hidden->iCurrBufSize = iBufSize;
|
||||
|
||||
// Store the new settings in global variables
|
||||
_this->hidden->iCurrDeviceOrd = iDeviceOrd;
|
||||
_this->hidden->iCurrFreq = iFreq;
|
||||
_this->hidden->iCurrBits = iBits;
|
||||
_this->hidden->iCurrChannels = iChannels;
|
||||
_this->hidden->iCurrNumBufs = iNumBufs;
|
||||
_this->hidden->iCurrBufSize = iBufSize;
|
||||
|
||||
return (0);
|
||||
return (0);
|
||||
}
|
||||
|
||||
|
||||
|
||||
void DART_ThreadInit(_THIS)
|
||||
void
|
||||
DART_ThreadInit(_THIS)
|
||||
{
|
||||
return;
|
||||
return;
|
||||
}
|
||||
|
||||
/* This function waits until it is possible to write a full sound buffer */
|
||||
void DART_WaitAudio(_THIS)
|
||||
void
|
||||
DART_WaitAudio(_THIS)
|
||||
{
|
||||
int i;
|
||||
pMixBufferDesc pBufDesc;
|
||||
ULONG ulPostCount;
|
||||
|
||||
DosResetEventSem(_this->hidden->hevAudioBufferPlayed, &ulPostCount);
|
||||
// If there is already an empty buffer, then return now!
|
||||
for (i=0; i<_this->hidden->iCurrNumBufs; i++)
|
||||
{
|
||||
pBufDesc = (pMixBufferDesc) _this->hidden->pMixBuffers[i].ulUserParm;
|
||||
if (pBufDesc->iBufferUsage == BUFFER_EMPTY)
|
||||
return;
|
||||
}
|
||||
// If there is no empty buffer, wait for one to be empty!
|
||||
DosWaitEventSem(_this->hidden->hevAudioBufferPlayed, 1000); // Wait max 1 sec!!! Important!
|
||||
return;
|
||||
}
|
||||
|
||||
void DART_PlayAudio(_THIS)
|
||||
{
|
||||
int iFreeBuf = _this->hidden->iNextFreeBuffer;
|
||||
pMixBufferDesc pBufDesc;
|
||||
|
||||
pBufDesc = (pMixBufferDesc) _this->hidden->pMixBuffers[iFreeBuf].ulUserParm;
|
||||
pBufDesc->iBufferUsage = BUFFER_USED;
|
||||
// Send it to DART to be queued
|
||||
_this->hidden->MixSetupParms.pmixWrite(_this->hidden->MixSetupParms.ulMixHandle,
|
||||
&(_this->hidden->pMixBuffers[iFreeBuf]), 1);
|
||||
|
||||
_this->hidden->iLastPlayedBuf = iFreeBuf;
|
||||
iFreeBuf = (iFreeBuf+1) % _this->hidden->iCurrNumBufs;
|
||||
_this->hidden->iNextFreeBuffer = iFreeBuf;
|
||||
}
|
||||
|
||||
Uint8 *DART_GetAudioBuf(_THIS)
|
||||
{
|
||||
int iFreeBuf;
|
||||
Uint8 *pResult;
|
||||
pMixBufferDesc pBufDesc;
|
||||
|
||||
if (_this)
|
||||
{
|
||||
if (_this->hidden)
|
||||
{
|
||||
iFreeBuf = _this->hidden->iNextFreeBuffer;
|
||||
pBufDesc = (pMixBufferDesc) _this->hidden->pMixBuffers[iFreeBuf].ulUserParm;
|
||||
|
||||
if (pBufDesc)
|
||||
{
|
||||
if (pBufDesc->iBufferUsage == BUFFER_EMPTY)
|
||||
{
|
||||
pResult = _this->hidden->pMixBuffers[iFreeBuf].pBuffer;
|
||||
return pResult;
|
||||
}
|
||||
} else
|
||||
printf("[DART_GetAudioBuf] : ERROR! pBufDesc = %p\n", pBufDesc);
|
||||
} else
|
||||
printf("[DART_GetAudioBuf] : ERROR! _this->hidden = %p\n", _this->hidden);
|
||||
} else
|
||||
printf("[DART_GetAudioBuf] : ERROR! _this = %p\n", _this);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
void DART_WaitDone(_THIS)
|
||||
{
|
||||
pMixBufferDesc pBufDesc;
|
||||
ULONG ulPostCount;
|
||||
APIRET rc;
|
||||
|
||||
pBufDesc = (pMixBufferDesc) _this->hidden->pMixBuffers[_this->hidden->iLastPlayedBuf].ulUserParm;
|
||||
rc = NO_ERROR;
|
||||
while ((pBufDesc->iBufferUsage != BUFFER_EMPTY) && (rc==NO_ERROR))
|
||||
{
|
||||
DosResetEventSem(_this->hidden->hevAudioBufferPlayed, &ulPostCount);
|
||||
rc = DosWaitEventSem(_this->hidden->hevAudioBufferPlayed, 1000); // 1 sec timeout! Important!
|
||||
}
|
||||
}
|
||||
|
||||
void DART_CloseAudio(_THIS)
|
||||
{
|
||||
MCI_GENERIC_PARMS GenericParms;
|
||||
int rc;
|
||||
|
||||
// Stop DART playback
|
||||
rc = mciSendCommand(_this->hidden->iCurrDeviceOrd, MCI_STOP, MCI_WAIT, &GenericParms, 0);
|
||||
if (rc!=MCIERR_SUCCESS)
|
||||
{
|
||||
#ifdef SFX_DEBUG_BUILD
|
||||
printf("Could not stop DART playback!\n");
|
||||
fflush(stdout);
|
||||
#endif
|
||||
}
|
||||
|
||||
// Close event semaphore
|
||||
DosCloseEventSem(_this->hidden->hevAudioBufferPlayed);
|
||||
|
||||
// Free memory of buffer descriptions
|
||||
{
|
||||
int i;
|
||||
for (i=0; i<_this->hidden->iCurrNumBufs; i++) SDL_free((void *)(_this->hidden->pMixBuffers[i].ulUserParm));
|
||||
}
|
||||
pMixBufferDesc pBufDesc;
|
||||
ULONG ulPostCount;
|
||||
|
||||
// Deallocate buffers
|
||||
rc = mciSendCommand(_this->hidden->iCurrDeviceOrd, MCI_BUFFER, MCI_WAIT | MCI_DEALLOCATE_MEMORY, &(_this->hidden->BufferParms), 0);
|
||||
DosResetEventSem(_this->hidden->hevAudioBufferPlayed, &ulPostCount);
|
||||
// If there is already an empty buffer, then return now!
|
||||
for (i = 0; i < _this->hidden->iCurrNumBufs; i++) {
|
||||
pBufDesc = (pMixBufferDesc) _this->hidden->pMixBuffers[i].ulUserParm;
|
||||
if (pBufDesc->iBufferUsage == BUFFER_EMPTY)
|
||||
return;
|
||||
}
|
||||
// If there is no empty buffer, wait for one to be empty!
|
||||
DosWaitEventSem(_this->hidden->hevAudioBufferPlayed, 1000); // Wait max 1 sec!!! Important!
|
||||
return;
|
||||
}
|
||||
|
||||
// Free bufferlist
|
||||
SDL_free(_this->hidden->pMixBuffers); _this->hidden->pMixBuffers = NULL;
|
||||
void
|
||||
DART_PlayAudio(_THIS)
|
||||
{
|
||||
int iFreeBuf = _this->hidden->iNextFreeBuffer;
|
||||
pMixBufferDesc pBufDesc;
|
||||
|
||||
// Close dart
|
||||
rc = mciSendCommand(_this->hidden->iCurrDeviceOrd, MCI_CLOSE, MCI_WAIT, &(GenericParms), 0);
|
||||
pBufDesc =
|
||||
(pMixBufferDesc) _this->hidden->pMixBuffers[iFreeBuf].ulUserParm;
|
||||
pBufDesc->iBufferUsage = BUFFER_USED;
|
||||
// Send it to DART to be queued
|
||||
_this->hidden->MixSetupParms.pmixWrite(_this->hidden->MixSetupParms.
|
||||
ulMixHandle,
|
||||
&(_this->hidden->
|
||||
pMixBuffers[iFreeBuf]), 1);
|
||||
|
||||
_this->hidden->iLastPlayedBuf = iFreeBuf;
|
||||
iFreeBuf = (iFreeBuf + 1) % _this->hidden->iCurrNumBufs;
|
||||
_this->hidden->iNextFreeBuffer = iFreeBuf;
|
||||
}
|
||||
|
||||
Uint8 *
|
||||
DART_GetAudioBuf(_THIS)
|
||||
{
|
||||
int iFreeBuf;
|
||||
Uint8 *pResult;
|
||||
pMixBufferDesc pBufDesc;
|
||||
|
||||
if (_this) {
|
||||
if (_this->hidden) {
|
||||
iFreeBuf = _this->hidden->iNextFreeBuffer;
|
||||
pBufDesc =
|
||||
(pMixBufferDesc) _this->hidden->pMixBuffers[iFreeBuf].
|
||||
ulUserParm;
|
||||
|
||||
if (pBufDesc) {
|
||||
if (pBufDesc->iBufferUsage == BUFFER_EMPTY) {
|
||||
pResult = _this->hidden->pMixBuffers[iFreeBuf].pBuffer;
|
||||
return pResult;
|
||||
}
|
||||
} else
|
||||
printf("[DART_GetAudioBuf] : ERROR! pBufDesc = %p\n",
|
||||
pBufDesc);
|
||||
} else
|
||||
printf("[DART_GetAudioBuf] : ERROR! _this->hidden = %p\n",
|
||||
_this->hidden);
|
||||
} else
|
||||
printf("[DART_GetAudioBuf] : ERROR! _this = %p\n", _this);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
void
|
||||
DART_WaitDone(_THIS)
|
||||
{
|
||||
pMixBufferDesc pBufDesc;
|
||||
ULONG ulPostCount;
|
||||
APIRET rc;
|
||||
|
||||
pBufDesc =
|
||||
(pMixBufferDesc) _this->hidden->pMixBuffers[_this->hidden->
|
||||
iLastPlayedBuf].
|
||||
ulUserParm;
|
||||
rc = NO_ERROR;
|
||||
while ((pBufDesc->iBufferUsage != BUFFER_EMPTY) && (rc == NO_ERROR)) {
|
||||
DosResetEventSem(_this->hidden->hevAudioBufferPlayed, &ulPostCount);
|
||||
rc = DosWaitEventSem(_this->hidden->hevAudioBufferPlayed, 1000); // 1 sec timeout! Important!
|
||||
}
|
||||
}
|
||||
|
||||
void
|
||||
DART_CloseAudio(_THIS)
|
||||
{
|
||||
MCI_GENERIC_PARMS GenericParms;
|
||||
int rc;
|
||||
|
||||
// Stop DART playback
|
||||
rc = mciSendCommand(_this->hidden->iCurrDeviceOrd, MCI_STOP, MCI_WAIT,
|
||||
&GenericParms, 0);
|
||||
if (rc != MCIERR_SUCCESS) {
|
||||
#ifdef SFX_DEBUG_BUILD
|
||||
printf("Could not stop DART playback!\n");
|
||||
fflush(stdout);
|
||||
#endif
|
||||
}
|
||||
// Close event semaphore
|
||||
DosCloseEventSem(_this->hidden->hevAudioBufferPlayed);
|
||||
|
||||
// Free memory of buffer descriptions
|
||||
{
|
||||
int i;
|
||||
for (i = 0; i < _this->hidden->iCurrNumBufs; i++)
|
||||
SDL_free((void *) (_this->hidden->pMixBuffers[i].ulUserParm));
|
||||
}
|
||||
|
||||
// Deallocate buffers
|
||||
rc = mciSendCommand(_this->hidden->iCurrDeviceOrd, MCI_BUFFER,
|
||||
MCI_WAIT | MCI_DEALLOCATE_MEMORY,
|
||||
&(_this->hidden->BufferParms), 0);
|
||||
|
||||
// Free bufferlist
|
||||
SDL_free(_this->hidden->pMixBuffers);
|
||||
_this->hidden->pMixBuffers = NULL;
|
||||
|
||||
// Close dart
|
||||
rc = mciSendCommand(_this->hidden->iCurrDeviceOrd, MCI_CLOSE, MCI_WAIT,
|
||||
&(GenericParms), 0);
|
||||
}
|
||||
|
||||
/* Audio driver bootstrap functions */
|
||||
|
||||
int Audio_Available(void)
|
||||
int
|
||||
Audio_Available(void)
|
||||
{
|
||||
return(1);
|
||||
return (1);
|
||||
}
|
||||
|
||||
void Audio_DeleteDevice(SDL_AudioDevice *device)
|
||||
void
|
||||
Audio_DeleteDevice(SDL_AudioDevice * device)
|
||||
{
|
||||
SDL_free(device->hidden);
|
||||
SDL_free(device);
|
||||
SDL_free(device->hidden);
|
||||
SDL_free(device);
|
||||
}
|
||||
|
||||
SDL_AudioDevice *Audio_CreateDevice(int devindex)
|
||||
SDL_AudioDevice *
|
||||
Audio_CreateDevice(int devindex)
|
||||
{
|
||||
SDL_AudioDevice *this;
|
||||
SDL_AudioDevice *this;
|
||||
|
||||
/* Initialize all variables that we clean on shutdown */
|
||||
this = (SDL_AudioDevice *)SDL_malloc(sizeof(SDL_AudioDevice));
|
||||
if ( this )
|
||||
{
|
||||
SDL_memset(this, 0, (sizeof *this));
|
||||
this->hidden = (struct SDL_PrivateAudioData *)
|
||||
SDL_malloc((sizeof *this->hidden));
|
||||
}
|
||||
if ( (this == NULL) || (this->hidden == NULL) )
|
||||
{
|
||||
SDL_OutOfMemory();
|
||||
if ( this )
|
||||
SDL_free(this);
|
||||
return(0);
|
||||
}
|
||||
SDL_memset(this->hidden, 0, (sizeof *this->hidden));
|
||||
/* Initialize all variables that we clean on shutdown */
|
||||
this = (SDL_AudioDevice *) SDL_malloc(sizeof(SDL_AudioDevice));
|
||||
if (this) {
|
||||
SDL_memset(this, 0, (sizeof *this));
|
||||
this->hidden = (struct SDL_PrivateAudioData *)
|
||||
SDL_malloc((sizeof *this->hidden));
|
||||
}
|
||||
if ((this == NULL) || (this->hidden == NULL)) {
|
||||
SDL_OutOfMemory();
|
||||
if (this)
|
||||
SDL_free(this);
|
||||
return (0);
|
||||
}
|
||||
SDL_memset(this->hidden, 0, (sizeof *this->hidden));
|
||||
|
||||
/* Set the function pointers */
|
||||
this->OpenAudio = DART_OpenAudio;
|
||||
this->ThreadInit = DART_ThreadInit;
|
||||
this->WaitAudio = DART_WaitAudio;
|
||||
this->PlayAudio = DART_PlayAudio;
|
||||
this->GetAudioBuf = DART_GetAudioBuf;
|
||||
this->WaitDone = DART_WaitDone;
|
||||
this->CloseAudio = DART_CloseAudio;
|
||||
/* Set the function pointers */
|
||||
this->OpenAudio = DART_OpenAudio;
|
||||
this->ThreadInit = DART_ThreadInit;
|
||||
this->WaitAudio = DART_WaitAudio;
|
||||
this->PlayAudio = DART_PlayAudio;
|
||||
this->GetAudioBuf = DART_GetAudioBuf;
|
||||
this->WaitDone = DART_WaitDone;
|
||||
this->CloseAudio = DART_CloseAudio;
|
||||
|
||||
this->free = Audio_DeleteDevice;
|
||||
this->free = Audio_DeleteDevice;
|
||||
|
||||
return this;
|
||||
return this;
|
||||
}
|
||||
|
||||
AudioBootStrap DART_bootstrap = {
|
||||
"dart", "OS/2 Direct Audio RouTines (DART)",
|
||||
Audio_Available, Audio_CreateDevice
|
||||
"dart", "OS/2 Direct Audio RouTines (DART)",
|
||||
Audio_Available, Audio_CreateDevice
|
||||
};
|
||||
|
||||
/* vi: set ts=4 sw=4 expandtab: */
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue