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machine/t10mmc.cpp: Fixed interpretation of CD Audio control page data. [Windy Fairy]

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This commit is contained in:
Vas Crabb 2023-11-28 06:25:33 +11:00
parent f140c02d2f
commit 37b022f993
1 changed files with 8 additions and 9 deletions
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17
src/devices/machine/t10mmc.cpp
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@ -1273,19 +1273,15 @@ void t10mmc::ReadData( uint8_t *data, int dataLength )
data[ptr++] = 0x8e; // page E, parameter is savable
data[ptr++] = 0x0e; // page length
data[ptr++] = (1 << 2) | (m_sotc << 1); // IMMED = 1
ptr += 6; // skip reserved bytes
// connect each audio channel to 1 output port
ptr += 5; // skip reserved bytes
// connect each audio channel to 1 output port and indicate max volume
data[ptr++] = 1;
data[ptr++] = 0xff;
data[ptr++] = 2;
data[ptr++] = 0xff;
data[ptr++] = 4;
data[ptr++] = 0xff;
data[ptr++] = 8;
// indicate max volume
data[ptr++] = 0xff;
ptr++;
data[ptr++] = 0xff;
ptr++;
data[ptr++] = 0xff;
ptr++;
data[ptr++] = 0xff;
}
@ -1383,6 +1379,9 @@ void t10mmc::WriteData( uint8_t *data, int dataLength )
m_device->logerror("Ch 1 route: %x vol: %x\n", data[10], data[11]);
m_device->logerror("Ch 2 route: %x vol: %x\n", data[12], data[13]);
m_device->logerror("Ch 3 route: %x vol: %x\n", data[14], data[15]);
// TODO: CDDA audio channels and output port should be separate
// The actual audio channel that gets sent to the output port is configurable and more than one audio channel can go to an output port
m_cdda->set_output_gain(0, data[9] / 255.0f);
m_cdda->set_output_gain(1, data[11] / 255.0f);
break;