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polymost.cpp: fix lockup bug that would occur with polymost_waitForSubBuffer() when glClientWaitSync consistently returned GL_WAIT_FAILED on certain hardware/drivers. 

Additionally, fix conditional check for r_persistentStreamBuffer requirements in polymost_glinit().

git-svn-id: https://svn.eduke32.com/eduke32@7048 1a8010ca-5511-0410-912e-c29ae57300e0
This commit is contained in:
pogokeen 2018-10-10 14:37:03 +00:00
parent eee0a71496
commit d291a81ccd
1 changed files with 14 additions and 2 deletions
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16
source/build/src/polymost.cpp
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@ -835,7 +835,7 @@ void polymost_glinit()
glEnable(GL_MULTISAMPLE);
}
if (persistentStreamBuffer && ((!glinfo.bufferstorage) || (!glinfo.sync)))
if (r_persistentStreamBuffer && ((!glinfo.bufferstorage) || (!glinfo.sync)))
{
OSD_Printf("Your OpenGL implementation doesn't support the required extensions for persistent stream buffers. Disabling...\n");
r_persistentStreamBuffer = 0;
@ -2928,12 +2928,24 @@ static void polymost_waitForSubBuffer(uint32_t subBufferIndex)
{
return;
}
if (waitResult == GL_WAIT_FAILED)
{
OSD_Printf("polymost_waitForSubBuffer: Wait failed! Error 0x%X. Disabling r_persistentStreamBuffer.\n", glGetError());
r_persistentStreamBuffer = 0;
videoResetMode();
if (videoSetGameMode(fullscreen,xres,yres,bpp,upscalefactor))
{
OSD_Printf("polymost_waitForSubBuffer: Video reset failed. Please ensure r_persistentStreamBuffer = 0 and try restarting the game.\n");
Bexit(1);
}
return;
}
static char loggedLongWait = false;
if (waitResult == GL_TIMEOUT_EXPIRED &&
!loggedLongWait)
{
OSD_Printf("polymost_waitForBuffer(): Had to wait for the drawpoly buffer to become available. For performance, try increasing buffer size with r_drawpolyVertsBufferLength.\n");
OSD_Printf("polymost_waitForSubBuffer(): Had to wait for the drawpoly buffer to become available. For performance, try increasing buffer size with r_drawpolyVertsBufferLength.\n");
loggedLongWait = true;
}
}