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James Russell
2026-04-03 00:22:39 -05:00
commit eca1e8c458
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libsst-wm/Win32/SST_WMVideoMode_Win32.c Normal file
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/*
SST_WMVideoMode_Win32.c
Author: Patrick Baggett <ptbaggett@762studios.com>
Created: 6/26/2012
Purpose:
Video mode setting functions
License:
This program is free software. It comes without any warranty, to
the extent permitted by applicable law. You can redistribute it
and/or modify it under the terms of the Do What The Fuck You Want
To Public License, Version 2, as published by Sam Hocevar. See
http://sam.zoy.org/wtfpl/COPYING for more details.
*/
#include "Win32Private.h"
#include "../APIPrivate.h"
/*************************************************************************/
static int Win32_SetVideoModeOnScreen(SST_DisplayTarget target, size_t screenIndex, const SST_VideoMode* vmode)
{
DEVMODEA devMode;
SST_DisplayTarget_Win32* displayTarget = (SST_DisplayTarget_Win32*)target;
const DISPLAY_DEVICEA* dev = &displayTarget->devs[screenIndex];
memset(&devMode, 0, sizeof(devMode));
devMode.dmSize = sizeof(devMode);
devMode.dmBitsPerPel = vmode->bpp;
devMode.dmPelsWidth = vmode->width;
devMode.dmPelsHeight = vmode->height;
devMode.dmDisplayFrequency = vmode->refreshRate;
devMode.dmFields = DM_BITSPERPEL | DM_PELSWIDTH | DM_PELSHEIGHT | DM_DISPLAYFREQUENCY;
return (ChangeDisplaySettingsExA(dev->DeviceName, &devMode, NULL, CDS_FULLSCREEN, NULL) == DISP_CHANGE_SUCCESSFUL);
}
/*************************************************************************/
static int Win32_GetVideoModeOnScreen(SST_DisplayTarget target, size_t screenIndex, SST_VideoMode* vmodeReturn)
{
SST_DisplayTarget_Win32* displayTarget = (SST_DisplayTarget_Win32*)target;
const DISPLAY_DEVICEA* dev = &displayTarget->devs[screenIndex];
DEVMODEA devMode;
int ok = 0;
devMode.dmSize = sizeof(devMode);
if(EnumDisplaySettingsA(dev->DeviceName, ENUM_CURRENT_SETTINGS, &devMode))
{
vmodeReturn->bpp = devMode.dmBitsPerPel;
vmodeReturn->width = devMode.dmPelsWidth;
vmodeReturn->height = devMode.dmPelsHeight;
vmodeReturn->refreshRate = devMode.dmDisplayFrequency;
if(vmodeReturn->refreshRate == 1)
vmodeReturn->refreshRate = SST_DEFAULT_REFRESHRATE;
ok = 1;
}
return ok;
}
const struct SST_WM_VideoModeFuncs Win32_VideoModeFuncs = {
Win32_SetVideoModeOnScreen,
Win32_GetVideoModeOnScreen
};