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Speaker: should be dual-mono (not silent on left channel). (#1159)

This commit is contained in:
tomcw 2024-01-14 15:51:12 +00:00
parent d0cc5b2808
commit fcd216bb45
1 changed files with 14 additions and 8 deletions
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22
source/Speaker.cpp
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@ -53,6 +53,8 @@ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
// their buffers are running low.
//
// NB. Setting g_nSPKR_NumChannels=1 still works (ie. mono).
// . Retain it for a while in case there are regressions with the new 2-channel code, then remove it.
static const unsigned short g_nSPKR_NumChannels = 2;
static const DWORD g_dwDSSpkrBufferSize = MAX_SAMPLES * sizeof(short) * g_nSPKR_NumChannels;
@ -354,8 +356,9 @@ static void UpdateRemainderBuffer(ULONG* pnCycleDiff)
}
else
{
g_pSpeakerBuffer[g_nBufferIdx * 2 + 0] = 0x0000;
g_pSpeakerBuffer[g_nBufferIdx * 2 + 1] = DCFilter((short)nSampleMean);
const short sample = DCFilter((short)nSampleMean);
g_pSpeakerBuffer[g_nBufferIdx * 2 + 0] = sample;
g_pSpeakerBuffer[g_nBufferIdx * 2 + 1] = sample;
}
g_nBufferIdx++;
}
@ -383,8 +386,9 @@ static void UpdateSpkr()
}
else
{
g_pSpeakerBuffer[g_nBufferIdx * 2 + 0] = 0x0000;
g_pSpeakerBuffer[g_nBufferIdx * 2 + 1] = DCFilter(g_nSpeakerData);
const short sample = DCFilter(g_nSpeakerData);
g_pSpeakerBuffer[g_nBufferIdx * 2 + 0] = sample;
g_pSpeakerBuffer[g_nBufferIdx * 2 + 1] = sample;
}
g_nBufferIdx++;
}
@ -670,8 +674,9 @@ static ULONG Spkr_SubmitWaveBuffer_FullSpeed(short* pSpeakerBuffer, ULONG nNumSa
{
for (UINT i = 0; i < numSamples; i++)
{
pDSLockedBuffer0[i * 2 + 0] = 0x0000;
pDSLockedBuffer0[i * 2 + 1] = DCFilter(g_nSpeakerData);
const short sample = DCFilter(g_nSpeakerData);
pDSLockedBuffer0[i * 2 + 0] = sample;
pDSLockedBuffer0[i * 2 + 1] = sample;
}
}
@ -690,8 +695,9 @@ static ULONG Spkr_SubmitWaveBuffer_FullSpeed(short* pSpeakerBuffer, ULONG nNumSa
{
for (UINT i = 0; i < numSamples; i++)
{
pDSLockedBuffer1[i * 2 + 0] = 0x0000;
pDSLockedBuffer1[i * 2 + 1] = DCFilter(g_nSpeakerData);
const short sample = DCFilter(g_nSpeakerData);
pDSLockedBuffer1[i * 2 + 0] = sample;
pDSLockedBuffer1[i * 2 + 1] = sample;
}
}