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fix volume calc; meant to change the comment but not the equation

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make sure setting volume to 0 works
This commit is contained in:
Glenn Maynard
2004-09-05 06:05:56 +00:00
parent 20dcf02ad1
commit 28f0a1b736
1 changed files with 2 additions and 2 deletions
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stepmania/src/arch/Sound/DSoundHelpers.cpp
+2 -2
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@@ -176,7 +176,7 @@ DSoundBuf::DSoundBuf( DSound &ds, DSoundBuf::hw hardware,
samplerate = samplerate_; samplerate = samplerate_;
samplebits = samplebits_; samplebits = samplebits_;
writeahead = writeahead_ * bytes_per_frame(); writeahead = writeahead_ * bytes_per_frame();
volume = 0; volume = -1; /* unset */
buffer_locked = false; buffer_locked = false;
last_cursor_pos = write_cursor = buffer_bytes_filled = 0; last_cursor_pos = write_cursor = buffer_bytes_filled = 0;
LastPosition = 0; LastPosition = 0;
@@ -302,7 +302,7 @@ void DSoundBuf::SetVolume(float vol)
float vl2 = log10f(vol) / log10f(2); /* vol log 2 */ float vl2 = log10f(vol) / log10f(2); /* vol log 2 */
/* Volume is a multiplier; SetVolume wants attenuation in hundredths of a decibel. */ /* Volume is a multiplier; SetVolume wants attenuation in hundredths of a decibel. */
const int new_volume = max( int(100 * vl2), DSBVOLUME_MIN ); const int new_volume = max( int(1000 * vl2), DSBVOLUME_MIN );
if( volume == new_volume ) if( volume == new_volume )
return; return;