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Add 'BXT_DISABLE_VSYNC' environment variable #424

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merged 3 commits into from
Feb 18, 2023
Merged

Add 'BXT_DISABLE_VSYNC' environment variable #424

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53bb17f
Added 'bxt_disable_v_sync' to disable V-Sync in pre-Steampipe builds
SmileyAG Feb 17, 2023
27d54b5
Replaced with 'BXT_DISABLE_VSYNC' environment variable
SmileyAG Feb 18, 2023
f8ab4fc
README: Specify that 'BXT_DISABLE_VSYNC' is only supported for Windows
SmileyAG Feb 18, 2023
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17 changes: 17 additions & 0 deletions BunnymodXT/modules/ClientDLL.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -1637,6 +1637,23 @@ HOOK_DEF_1(ClientDLL, void, __cdecl, HUD_Frame, double, time)
orig_forcehltv_found = HwDLL::GetInstance().ORIG_Cmd_FindCmd("dem_forcehltv");
}

#ifdef _WIN32
static bool check_vsync = true;
if (check_vsync)
{
bool bxtDisableVSync = getenv("BXT_DISABLE_VSYNC");
if (bxtDisableVSync)
{
typedef BOOL(APIENTRY* PFNWGLSWAPINTERVALPROC)(int);
PFNWGLSWAPINTERVALPROC wglSwapIntervalEXT = 0;
wglSwapIntervalEXT = (PFNWGLSWAPINTERVALPROC)wglGetProcAddress("wglSwapIntervalEXT");
if (wglSwapIntervalEXT)
wglSwapIntervalEXT(0);
}
check_vsync = false;
}
#endif

if (CVars::_bxt_taslog.GetBool() && pEngfuncs)
pEngfuncs->Con_Printf(const_cast<char*>("HUD_Frame time: %f\n"), time);

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1 change: 1 addition & 0 deletions README.md
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Expand Up @@ -35,6 +35,7 @@ Use the [Bunnymod XT Launcher](https://github.com/YaLTeR/bxt-launcher).
- **SPTLIB_DEBUG** - if set to 1, logs all dlopen, dlclose and dlsym calls.
- **BXT_DISABLE_DEBUG_CONSOLE** - if set, disables the Bunnymod XT debug console.
- **BXT_DISABLE_DISCORD_RPC** - if set, disables the Discord RPC module.
- **BXT_DISABLE_VSYNC** - if set, disables the V-Sync on initialization.
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Suggested change
- **BXT_DISABLE_VSYNC** - if set, disables the V-Sync on initialization.
- **BXT_DISABLE_VSYNC** - if set, disables the V-Sync on initialization (Windows-only).


## Building

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