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Don't turn mixer channel off is current volume is not 0. Slowly decrease volume if idle for a while. Fixes (most of) the clicks of secret agent.

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Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@3387
This commit is contained in:
Peter Veenstra 2009-05-14 18:51:53 +00:00
parent 7f67bfd3ee
commit 144240717d
1 changed files with 14 additions and 8 deletions
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22
src/hardware/pcspeaker.cpp
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@ -16,7 +16,7 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
/* $Id: pcspeaker.cpp,v 1.24 2007-07-15 16:36:27 c2woody Exp $ */
/* $Id: pcspeaker.cpp,v 1.25 2009-05-14 18:51:53 qbix79 Exp $ */
#include <math.h>
#include "dosbox.h"
@ -305,15 +305,21 @@ static void PCSPEAKER_CallBack(Bitu len) {
if(spkr.chan) spkr.chan->AddSamples_m16(len,(Bit16s*)MixTemp);
//Turn off speaker after 10 seconds of idle or one second idle when in off mode
bool turnoff = false;
Bitu test_ticks = PIC_Ticks;
if ((spkr.last_ticks+10000)<test_ticks) {
spkr.last_ticks=0;
if(spkr.chan) spkr.chan->Enable(false);
if ((spkr.last_ticks + 10000) < test_ticks) turnoff = true;
if((spkr.mode == SPKR_OFF) && ((spkr.last_ticks + 1000) < test_ticks)) turnoff = true;
if(turnoff){
if(spkr.volwant == 0) {
spkr.last_ticks = 0;
if(spkr.chan) spkr.chan->Enable(false);
} else {
if(spkr.volwant > 0) spkr.volwant--; else spkr.volwant++;
}
}
if((spkr.mode == SPKR_OFF) && ((spkr.last_ticks+1000) <test_ticks)) {
spkr.last_ticks=0;
if(spkr.chan) spkr.chan->Enable(false);
}
}
class PCSPEAKER:public Module_base {
private: