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vgmplay.cpp : Volume Modifier Support, Typo (#3804)

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* vgmplay.cpp : Volume Multipler Support, Typo

* vgmplay.cpp : Minor fix

* vgmplay.cpp : Fix volume

* mega32x.cpp : Remove unused

* vgmplay.cpp : Fix duplicate

* vgmplay.cpp : Log volume

* vgmplay.cpp : Fix volume
This commit is contained in:
cam900 2019-04-01 06:00:54 +09:00 committed by R. Belmont
parent 104e42014e
commit 99cc29b2c9
1 changed files with 23 additions and 0 deletions
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23
src/mame/drivers/vgmplay.cpp
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@ -2705,6 +2705,17 @@ QUICKLOAD_LOAD_MEMBER(vgmplay_state, load_file)
logerror("File version %x.%02x\n", version >> 8, version & 0xff);
uint32_t data_start = version >= 0x150 ? r32(0x34) + 0x34 : 0x40;
int volbyte = version >= 0x160 && data_start >= 0x7d ? r8(0x7c) : 0;
logerror("Volume %02x\n", volbyte);
if (volbyte == 0xc1) // 0x00~0xc0 0~192, 0xc1 -64, 0xc2~0xff -62~-1
volbyte = -0x40;
else if (volbyte > 0xc1)
volbyte -= 0x100;
float volume = powf(2.0f, float(volbyte) / float(0x20));
uint32_t chip_count = 0;
uint32_t extra_header_start = version >= 0x170 && data_start >= 0xc0 && r32(0xbc) ? r32(0xbc) + 0xbc : 0;
uint32_t header_size = extra_header_start ? extra_header_start : data_start;
@ -2732,6 +2743,8 @@ QUICKLOAD_LOAD_MEMBER(vgmplay_state, load_file)
break;
}
}
chip_count++;
}
device.set_unscaled_clock(c & ~0xc0000000);
@ -2915,6 +2928,16 @@ QUICKLOAD_LOAD_MEMBER(vgmplay_state, load_file)
if (child.clock() != 0)
logerror("%s %d\n", child.tag(), child.clock());
if (chip_count == 0)
volume = 0.0f;
else
volume /= (float)chip_count;
for (int i = 0; i < m_lspeaker->inputs(); i++)
m_lspeaker->set_input_gain(i, volume); // TODO : Volume is related to chip number
for (int i = 0; i < m_rspeaker->inputs(); i++)
m_rspeaker->set_input_gain(i, volume);
//for (auto &stream : machine().sound().streams())
// if (stream->sample_rate() != 0)
// logerror("%s %d\n", stream->device().tag(), stream->sample_rate());