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NuBusFPGA
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HW mono support

This commit is contained in:
Romain Dolbeau 2023-01-11 22:41:43 +01:00
parent ca779f3d26
commit 873e185cc3
2 changed files with 10 additions and 49 deletions
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57
nubus-to-ztex-gateware/NuBusFPGAHDMIAudio/NuBusFPGAHDMIAudio.c
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@ -99,7 +99,7 @@ static inline unsigned long brev(const unsigned long r) {
#define kSampleRate22 0x56220000 // 22.050 kHz rate
#define kSampleRate11 0x2B110000 // 11.025 kHz rate
#define kChannelsCount 1 // 2
#define kChannelsCount 2
#define kNumChannelsMono 1 // mono
#define kNumChannelsStereo 2 // stereo
@ -748,7 +748,7 @@ pascal ComponentResult __GetInfo(GlobalsPtr globals, SoundSource sourceID,
listPtr->handle = h; // handle to be returned
sp = (short *) *h; // store channels in handle
//*sp++ = kNumChannelsMono;
*sp++ = kNumChannelsMono;
*sp++ = kNumChannelsStereo;
break;
@ -834,7 +834,7 @@ pascal ComponentResult __SetInfo(GlobalsPtr globals, SoundSource sourceID,
{
short numChannels = (short) infoPtr;
if (/*(numChannels == kNumChannelsMono) ||*/ // make sure it is a valid no. channels
if ((numChannels == kNumChannelsMono) || // make sure it is a valid no. channels
(numChannels == kNumChannelsStereo))
{
prefsPtr->numChannels = numChannels; // save new num channels in prefs
@ -1272,33 +1272,6 @@ SoundComponentDataPtr GetMoreSource(GlobalsPtr globals)
// used in your sound component.
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
static void StereoBlockMove(const void *in, void* out, const int sampleBytes, const int sampleCount) {
int i;
unsigned long data;
switch(sampleBytes) {
case 1: {
for (i = 0 ; i < sampleCount/2; i++) {
data = ((unsigned short*)in)[i];
data = ((data & 0x0000FF00) << 8) | (data & 0x000000FF);
data |= (data << 8);
((unsigned long*)out)[i] = data;
}
if (sampleCount & 1) {
((unsigned char*)out)[2 * sampleCount - 2] = ((unsigned char*)in)[sampleCount - 1];
((unsigned char*)out)[2 * sampleCount - 1] = ((unsigned char*)in)[sampleCount - 1];
}
} break;
case 2: {
for (i = 0 ; i < sampleCount; i++) {
data = ((unsigned short*)in)[i];
data |= (data << 16);
((unsigned long*)out)[i] = data;
}
} break;
}
}
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// This routine copies the data returned by the mixer to the hardware.
@ -1318,22 +1291,14 @@ static void CopySamplesToHardware(GlobalsPtr globals, SoundComponentDataPtr sour
// and we are playing lastbuf xor 1
switch ((*globals).lastbuf) {
case 0:
if (sampleChannel == 2) {
BlockMove(sourceDataPtr->buffer, (void*)((*globals).buf0), sampleBytes * 2 * sourceDataPtr->sampleCount);
} else if (sampleChannel == 1) {
StereoBlockMove(sourceDataPtr->buffer, (void*)((*globals).buf0), sampleBytes, sourceDataPtr->sampleCount);
}
BlockMove(sourceDataPtr->buffer, (void*)((*globals).buf0), sampleBytes * sampleChannel * sourceDataPtr->sampleCount);
(*(*globals).csr).goblin_goblin_audio_buf0_size = brev(sourceDataPtr->sampleCount);
(*globals).lastbuf = 1;
//(*(*globals).csr).goblin_goblin_audio_ctrl = brev(0x0100); // play buf0 // redundant ?
break;
case 1:
default:
if (sampleChannel == 2) {
BlockMove(sourceDataPtr->buffer, (void*)((*globals).buf1), sampleBytes * 2 * sourceDataPtr->sampleCount);
} else if (sampleChannel == 1) {
StereoBlockMove(sourceDataPtr->buffer, (void*)((*globals).buf1), sampleBytes, sourceDataPtr->sampleCount);
}
BlockMove(sourceDataPtr->buffer, (void*)((*globals).buf1), sampleBytes * sampleChannel * sourceDataPtr->sampleCount);
(*(*globals).csr).goblin_goblin_audio_buf1_size = brev(sourceDataPtr->sampleCount);
(*globals).lastbuf = 0;
//(*(*globals).csr).goblin_goblin_audio_ctrl = brev(0x0101); // play buf1 // redundant ?
@ -1350,19 +1315,15 @@ static void CopySamplesToHardware(GlobalsPtr globals, SoundComponentDataPtr sour
(*(*globals).bt).debug = buf0count;
(*(*globals).bt).debug = buf1count;
#endif
if (sampleChannel == 2) {
BlockMove(sourceDataPtr->buffer, (void*)((*globals).buf0), sampleBytes * 2 * buf0count);
BlockMove(sourceDataPtr->buffer + sampleBytes * 2 * buf0count, (void*)((*globals).buf1), sampleBytes * 2 * buf1count);
} else if (sampleChannel == 1) {
StereoBlockMove(sourceDataPtr->buffer, (void*)((*globals).buf0), sampleBytes, buf0count);
StereoBlockMove(sourceDataPtr->buffer + sampleBytes * buf0count, (void*)((*globals).buf1), sampleBytes, buf1count);
}
BlockMove(sourceDataPtr->buffer, (void*)((*globals).buf0), sampleBytes * sampleChannel * buf0count);
BlockMove(sourceDataPtr->buffer + sampleBytes * sampleChannel * buf0count, (void*)((*globals).buf1), sampleBytes * sampleChannel * buf1count);
(*(*globals).csr).goblin_goblin_audio_buf0_size = brev(buf0count);
(*(*globals).csr).goblin_goblin_audio_buf1_size = brev(buf1count);
(*globals).lastbuf = 0;
sourceDataPtr->sampleCount = 0; // sound has been played
// now play for real
(*(*globals).csr).goblin_goblin_audio_buf_desc = brev((sourceDataPtr->sampleSize == k8BitSamples ? 0x1 : 0x0) |
(*(*globals).csr).goblin_goblin_audio_buf_desc = brev((sourceDataPtr->sampleSize == k8BitSamples ? 0x1 : 0x0) | // default 16-bits
(sampleChannel == 1 ? 0x40 : 0) | // default stereo
(sourceDataPtr->format == kOffsetBinary ? 0x0080 : 0x0000)); // otherwise assume kTwosComplement
(*(*globals).csr).goblin_goblin_audio_ctrl = brev(0x0100); // play buf0
}

2
nubus-to-ztex-gateware/VintageBusFPGA_Common

@ -1 +1 @@
Subproject commit eea4e2aab7fa7a048a92f283ce8163206e9449d6
Subproject commit f93c95ba1eda007ffce0cf5f9c5a3421afbcfdc6