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Fix an infinite loop in S_StopEnvSound() that could occur if the audio thread happened to finish playing a voice in between checking if g_sounds[].voices[].id > FX_Ok and calling FX_StopSound(), exacerbated by improper std::atomic usage

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git-svn-id: https://svn.eduke32.com/eduke32@7305 1a8010ca-5511-0410-912e-c29ae57300e0
This commit is contained in:
terminx 2019-01-12 00:21:58 +00:00
parent 6ca492918e
commit 97c2271b92
1 changed files with 12 additions and 9 deletions
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19
source/duke3d/src/sounds.cpp
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@ -26,7 +26,7 @@ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
#include "renderlayer.h" // for win_gethwnd()
#include <atomic>
#define DQSIZE 128
#define DQSIZE 256
int32_t g_numEnvSoundsPlaying, g_highestSoundIdx = 0;
@ -79,7 +79,7 @@ void S_SoundStartup(void)
FX_SetReverseStereo(ud.config.ReverseStereo);
FX_SetCallBack(S_Callback);
FX_SetPrintf(initprintf);
FX_SetPrintf(OSD_Printf);
}
void S_SoundShutdown(void)
@ -377,9 +377,8 @@ void S_StopMusic(void)
void S_Cleanup(void)
{
static uint32_t ldnum;
uint32_t const odnum = dnum;
while (ldnum < odnum)
while (ldnum < dnum)
{
uint32_t num = dq[ldnum++ & (DQSIZE - 1)];
@ -816,6 +815,8 @@ void S_StopEnvSound(int32_t num, int32_t i)
{
for (j=0; j<MAXSOUNDINSTANCES; ++j)
{
S_Cleanup();
if ((i == -1 && g_sounds[num].voices[j].id > FX_Ok) || (i != -1 && g_sounds[num].voices[j].owner == i))
{
#ifdef DEBUGGINGAIDS
@ -825,8 +826,8 @@ void S_StopEnvSound(int32_t num, int32_t i)
#endif
if (g_sounds[num].voices[j].id > FX_Ok)
{
if (FX_SoundActive(g_sounds[num].voices[j].id))
FX_StopSound(g_sounds[num].voices[j].id);
S_Cleanup();
break;
}
}
@ -861,8 +862,6 @@ void S_ChangeSoundPitch(int soundNum, int spriteNum, int pitchoffset)
void S_Update(void)
{
S_Cleanup();
if ((g_player[myconnectindex].ps->gm & (MODE_GAME|MODE_DEMO)) == 0)
return;
@ -892,6 +891,8 @@ void S_Update(void)
if (g_sounds[sndnum].num == 0)
continue;
S_Cleanup();
for (auto &voice : g_sounds[sndnum].voices)
{
int const spriteNum = voice.owner;
@ -919,7 +920,9 @@ void S_Callback(uint32_t num)
if ((int32_t)num == MUSIC_ID)
return;
dq[dnum++ & (DQSIZE - 1)] = num;
int const ldnum = dnum;
dq[ldnum & (DQSIZE - 1)] = num;
dnum++;
}
void S_ClearSoundLocks(void)