OrdinaryMagician/vkdoom_m
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- Implemented a simple graphics switch. This currently affects NVidia Optimus-enabled notebooks only.

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This commit is contained in:
Rachael Alexanderson 2017-03-01 09:46:31 -05:00
commit 4ebd25171c
3 changed files with 48 additions and 1 deletions
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33
src/win32/hardware.cpp
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@ -71,8 +71,34 @@ FRenderer *gl_CreateInterface();
void I_RestartRenderer();
int currentrenderer = -1;
int currentcanvas = -1;
int currentgpuswitch = -1;
bool changerenderer;
// Optimus/Hybrid switcher
CUSTOM_CVAR(Int, vid_gpuswitch, 0, CVAR_ARCHIVE | CVAR_GLOBALCONFIG | CVAR_NOINITCALL)
{
if (self != currentgpuswitch)
{
switch (self)
{
case 0:
Printf("Selecting default GPU...\n");
break;
case 1:
Printf("Selecting high-performance dedicated GPU...\n");
break;
case 2:
Printf("Selecting power-saving integrated GPU...\n");
break;
default:
Printf("Unknown option (%d) - falling back to 'default'\n", *vid_gpuswitch);
self = 0;
break;
}
Printf("You must restart " GAMENAME " for this change to take effect.\n");
}
}
// Software OpenGL canvas
CUSTOM_CVAR(Bool, vid_used3d, true, CVAR_ARCHIVE | CVAR_GLOBALCONFIG | CVAR_NOINITCALL)
{
@ -128,6 +154,13 @@ void I_InitGraphics ()
{
UCVarValue val;
// todo: implement ATI version of this. this only works for nvidia notebooks, for now.
currentgpuswitch = vid_gpuswitch;
if (currentgpuswitch == 1)
putenv("SHIM_MCCOMPAT=0x800000001"); // discrete
else if (currentgpuswitch == 2)
putenv("SHIM_MCCOMPAT=0x800000000"); // integrated
// If the focus window is destroyed, it doesn't go back to the active window.
// (e.g. because the net pane was up, and a button on it had focus)
if (GetFocus() == NULL && GetActiveWindow() == Window)