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Fix framerate throttling in Emscripten builds

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Default com_maxfps to 0 under Emscripten. Under Emscripten the browser
handles throttling the frame rate. Manual framerate throttling interacts
poorly with Emscripten's browser-driven event loop.
This commit is contained in:
James Darpinian 2024-06-24 23:52:11 -07:00 committed by GitHub
parent 99be1151f7
commit e505e34d79
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GPG key ID: B5690EEEBB952194
2 changed files with 14 additions and 0 deletions
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7
code/qcommon/common.c
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@ -2741,7 +2741,14 @@ void Com_Init( char *commandLine ) {
// init commands and vars
//
com_altivec = Cvar_Get ("com_altivec", "1", CVAR_ARCHIVE);
#ifdef __EMSCRIPTEN__
// Under Emscripten the browser handles throttling the frame rate.
// Manual framerate throttling interacts poorly with Emscripten's
// browser-driven event loop. So default throttling to off.
com_maxfps = Cvar_Get ("com_maxfps", "0", CVAR_ARCHIVE);
#else
com_maxfps = Cvar_Get ("com_maxfps", "85", CVAR_ARCHIVE);
#endif
com_blood = Cvar_Get ("com_blood", "1", CVAR_ARCHIVE);
com_logfile = Cvar_Get ("logfile", "0", CVAR_TEMP );

7
code/renderergl2/tr_init.c
View file

@ -1365,8 +1365,15 @@ void R_Register( void )
r_dlightBacks = ri.Cvar_Get( "r_dlightBacks", "1", CVAR_ARCHIVE );
r_finish = ri.Cvar_Get ("r_finish", "0", CVAR_ARCHIVE);
r_textureMode = ri.Cvar_Get( "r_textureMode", "GL_LINEAR_MIPMAP_LINEAR", CVAR_ARCHIVE );
#ifdef __EMSCRIPTEN__
// Under Emscripten we don't throttle framerate with com_maxfps by default, so enable
// vsync by default instead.
r_swapInterval = ri.Cvar_Get( "r_swapInterval", "1",
CVAR_ARCHIVE | CVAR_LATCH );
#else
r_swapInterval = ri.Cvar_Get( "r_swapInterval", "0",
CVAR_ARCHIVE | CVAR_LATCH );
#endif
r_gamma = ri.Cvar_Get( "r_gamma", "1", CVAR_ARCHIVE );
r_facePlaneCull = ri.Cvar_Get ("r_facePlaneCull", "1", CVAR_ARCHIVE );