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[idd] config: retain four-decimal refresh rates

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This commit is contained in:
Geoffrey McRae
2026-08-17 02:09:58 +10:00
parent c0de47b1e1
commit 9d074519b2
16 changed files with 93 additions and 76 deletions
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24
idd/LGIdd/config/CSettings.cpp
View File

@@ -33,14 +33,14 @@ CSettings::CSettings()
CSettings::DisplayModes CSettings::LoadModes()
{
const unsigned defaultRefreshMilliHz = GetDefaultRefreshMilliHz();
const unsigned defaultRefresh100uHz = GetDefaultRefresh100uHz();
DisplayModes displayModes;
bool hasPreferred = false;
DisplayMode m;
if (GetExtraMode(m))
{
const std::wstring refresh = LGFormatRefreshRate(m.refreshMilliHz);
const std::wstring refresh = LGFormatRefreshRate(m.refresh100uHz);
DEBUG_INFO("ExtraMode: %ux%u@%ls%s", m.width, m.height,
refresh.c_str(), m.preferred ? "*" : "");
displayModes.push_back(m);
@@ -57,7 +57,7 @@ CSettings::DisplayModes CSettings::LoadModes()
{
m.width = DefaultDisplayModes[i][0];
m.height = DefaultDisplayModes[i][1];
m.refreshMilliHz = defaultRefreshMilliHz;
m.refresh100uHz = defaultRefresh100uHz;
m.preferred = !hasPreferred &&
(i == DefaultPreferredDisplayMode);
m.extraMode = false;
@@ -96,7 +96,7 @@ TransportInstances CSettings::LoadTransportInstances() const
bool CSettings::SetExtraMode(const DisplayMode& mode)
{
WCHAR buf[64];
const std::wstring refresh = LGFormatRefreshRate(mode.refreshMilliHz);
const std::wstring refresh = LGFormatRefreshRate(mode.refresh100uHz);
_snwprintf_s(buf, _countof(buf), _TRUNCATE, L"%ux%u@%ls%s",
mode.width, mode.height, refresh.c_str(),
mode.preferred ? L"*" : L"");
@@ -199,13 +199,13 @@ bool CSettings::GetExtraMode(DisplayMode& mode)
return true;
}
unsigned CSettings::GetDefaultRefreshMilliHz() const
unsigned CSettings::GetDefaultRefresh100uHz() const
{
HKEY hKey = nullptr;
LONG status = RegOpenKeyExW(
HKEY_LOCAL_MACHINE, RegistryKey(), 0, KEY_QUERY_VALUE, &hKey);
if (status != ERROR_SUCCESS)
return 60000;
return 60 * LG_REFRESH_RATE_SCALE;
DWORD type = 0;
DWORD size = 0;
@@ -214,17 +214,17 @@ unsigned CSettings::GetDefaultRefreshMilliHz() const
if (status != ERROR_SUCCESS)
{
RegCloseKey(hKey);
return 60000;
return 60 * LG_REFRESH_RATE_SCALE;
}
unsigned refreshMilliHz = 0;
unsigned refresh100uHz = 0;
if (type == REG_DWORD && size == sizeof(DWORD))
{
DWORD refresh = 0;
status = RegQueryValueExW(hKey, L"DefaultRefresh", nullptr, &type,
(LPBYTE)&refresh, &size);
if (status == ERROR_SUCCESS && refresh >= 24 && refresh <= 1000)
refreshMilliHz = refresh * 1000;
refresh100uHz = refresh * LG_REFRESH_RATE_SCALE;
}
else if ((type == REG_SZ || type == REG_EXPAND_SZ) && size &&
size % sizeof(wchar_t) == 0)
@@ -233,11 +233,11 @@ unsigned CSettings::GetDefaultRefreshMilliHz() const
status = RegQueryValueExW(hKey, L"DefaultRefresh", nullptr, &type,
(LPBYTE)value.data(), &size);
if (status == ERROR_SUCCESS)
LGParseRefreshRate(value.data(), refreshMilliHz);
LGParseRefreshRate(value.data(), refresh100uHz);
}
RegCloseKey(hKey);
return refreshMilliHz ? refreshMilliHz : 60000;
return refresh100uHz ? refresh100uHz : 60 * LG_REFRESH_RATE_SCALE;
}
bool CSettings::ReadMultiStringValue(const wchar_t * name,
@@ -331,7 +331,7 @@ bool CSettings::ParseModeString(const std::wstring& in, DisplayMode& out)
if (!toUnsigned(s.substr(0, xPos), out.width) ||
!toUnsigned(s.substr(xPos + 1, atPos - (xPos + 1)), out.height) ||
!LGParseRefreshRate(s.substr(atPos + 1), out.refreshMilliHz))
!LGParseRefreshRate(s.substr(atPos + 1), out.refresh100uHz))
return false;
// sanity check

4
idd/LGIdd/config/CSettings.h
View File

@@ -32,7 +32,7 @@ class CSettings
{
unsigned width;
unsigned height;
unsigned refreshMilliHz;
unsigned refresh100uHz;
bool preferred;
bool extraMode;
};
@@ -44,7 +44,7 @@ class CSettings
TransportInstances LoadTransportInstances() const;
bool SetExtraMode(const DisplayMode & mode);
bool GetExtraMode(DisplayMode & mode);
unsigned GetDefaultRefreshMilliHz() const;
unsigned GetDefaultRefresh100uHz() const;
std::wstring ReadStringValue(const wchar_t* name, const wchar_t* defaultValue = nullptr);
static bool ReadBoolValue(