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Made the volume setting not dependent on numSamples. It moves around a lot and depends on how fast the game run and this volume setting should probably not depend on that. I'm still unsure about the right volume steps and if pb.mixer_control has the target volume.

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git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@839 8ced0084-cf51-0410-be5f-012b33b47a6e
This commit is contained in:
John Peterson
2008-10-11 14:35:29 +00:00
parent 316527dd6d
commit ba88ebaecb
3 changed files with 32 additions and 34 deletions
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47
Source/Plugins/Plugin_DSP_HLE/Src/UCodes/UCode_AX.cpp
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@ -137,26 +137,25 @@ void ADPCM_Loop(AXParamBlock& pb)
u16 ADPCM_Vol(u16 vol, u16 delta, u16 mixer_control)
{
int x = vol;
if (delta && delta < 0x4000)
x += delta; // unsure what the right step is
//x ++;
//x += 8; //?
else if (delta && delta > 0x4000)
//x -= (0x8000 - pb.mixer.unknown); // this didn't work
x--;
if (delta && delta < 0x5000)
x += delta * 20 * 8; // unsure what the right step is
else if (delta && delta > 0x5000)
//x -= (0x10000 - delta); // this is to small, it's often 1
x -= (0x10000 - delta) * 20 * 16; // if this was 20 * 8 the sounds in Fire Emblem and Paper Mario
// did not have time to go to zero before the were closed
// make lower limits
if (x < 0) x = 0;
// does this make any sense?
//if (pb.mixer_control < 1000 && x < pb.mixer_control) x = pb.mixer_control;
if (x < 0) x = 0;
//if (pb.mixer_control < 1000 && x < pb.mixer_control) x = pb.mixer_control; // does this make
// any sense?
// make upper limits
if (mixer_control > 1000 && x > mixer_control) x = mixer_control; // I don't know if this is correct
//if (mixer_control > 1000 && x > mixer_control) x = mixer_control; // maybe mixer_control also
// has a volume target?
//if (x >= 0x7fff) x = 0x7fff; // this seems a little high
if (x >= 0x4e20) x = 0x4e20; // add a definitive limit at 20 000
return x; // update volume
}
// ==============
@ -308,7 +307,8 @@ void CUCode_AX::MixAdd(short* _pBuffer, int _iSize)
// =======================================================================================
// Handle no-src streams - No src streams have pb.src_type == 2 and have pb.src.ratio_hi = 0
// and pb.src.ratio_lo = 0. We handle that by setting the sampling ratio integer to 1. This
// makes samplePos update in the correct way.
// makes samplePos update in the correct way. I'm unsure how we are actually supposed to
// detect that this setting. Updates did not fix this automatically.
// ---------------------------------------------------------------------------------------
// Stream settings
// src_type = 2 (most other games have src_type = 0)
@ -329,8 +329,9 @@ void CUCode_AX::MixAdd(short* _pBuffer, int _iSize)
// =======================================================================================
// Games that use looping to play non-looping music streams - SSBM has info in all
// pb.adpcm_loop_info parameters but has pb.audio_addr.looping = 0. If we treat these streams
// like any other looping streams the music works. It seems like pb.mixer_control == 0 may
// identify these types of blocks.
// like any other looping streams the music works. I'm unsure how we are actually supposed to
// detect that these kinds of blocks should be looping. It seems like pb.mixer_control == 0 may
// identify these types of blocks. Updates did not write any looping values.
// --------------
if(
(pb.adpcm_loop_info.pred_scale || pb.adpcm_loop_info.yn1 || pb.adpcm_loop_info.yn2)
@ -344,7 +345,8 @@ void CUCode_AX::MixAdd(short* _pBuffer, int _iSize)
// =======================================================================================
// Walk through _iSize
// Walk through _iSize. _iSize = numSamples. If the game goes slow _iSize will be higher to
// compensate for that. _iSize can be as low as 100 or as high as 2000 some cases.
for (int s = 0; s < _iSize; s++)
{
int sample = 0;
@ -405,16 +407,10 @@ void CUCode_AX::MixAdd(short* _pBuffer, int _iSize)
{
int x = pb.vol_env.cur_volume;
x += pb.vol_env.cur_volume_delta; // I'm not sure about this, can anybody find a game
// that use this?
// that use this? Or how does it work?
if (x < 0) x = 0;
if (x >= 0x7fff) x = 0x7fff;
pb.vol_env.cur_volume = x; // maybe not per sample?? :P
if(gVolume) // allow us to turn this off in the debugger
{
pb.mixer.volume_left = ADPCM_Vol(pb.mixer.volume_left, pb.mixer.unknown, pb.mixer_control);
pb.mixer.volume_right = ADPCM_Vol(pb.mixer.volume_right, pb.mixer.unknown2, pb.mixer_control);
}
}
int leftmix = pb.mixer.volume_left >> 5;
@ -446,6 +442,11 @@ void CUCode_AX::MixAdd(short* _pBuffer, int _iSize)
} // end of the _iSize loop
// ============
if(gVolume) // allow us to turn this off in the debugger
{
pb.mixer.volume_left = ADPCM_Vol(pb.mixer.volume_left, pb.mixer.unknown, pb.mixer_control);
pb.mixer.volume_right = ADPCM_Vol(pb.mixer.volume_right, pb.mixer.unknown2, pb.mixer_control);
}
pb.src.cur_addr_frac = (u16)frac;
pb.audio_addr.cur_addr_hi = samplePos >> 16;