DisplayControlSet DomainDisplayControl_001::getDisplayControlSet(UIntN participantIndex, UIntN domainIndex)
{
if (m_displayControlSet.isInvalid())
{
m_displayControlSet.set(createDisplayControlSet(domainIndex));
}
return m_displayControlSet.get();
}
void DomainDisplayControl_001::createDisplayControlDynamicCaps(UIntN domainIndex)
{
UIntN upperLimitIndex;
UIntN lowerLimitIndex;
UInt32 uint32val;
// Get dynamic caps
// The caps are stored in BIOS as brightness percentage. They must be converted
// to indices before they can be used.
// FIXME: ESIF treats this as a UInt32 but we treat this as a percentage. Need to get this in sync.
uint32val = m_participantServicesInterface->primitiveExecuteGetAsUInt32(
esif_primitive_type::GET_DISPLAY_DEPTH_LIMIT, domainIndex);
Percentage lowerLimitBrightness = Percentage::fromWholeNumber(uint32val / 100);
lowerLimitIndex = m_displayControlSet->getControlIndex(lowerLimitBrightness);
try
{
// FIXME: ESIF treats this as a UInt32 but we treat this as a percentage. Need to get this in sync.
uint32val = m_participantServicesInterface->primitiveExecuteGetAsUInt32(
esif_primitive_type::GET_DISPLAY_CAPABILITY, domainIndex);
Percentage upperLimitBrightness = static_cast<double>(uint32val) / 100.0;
upperLimitIndex = m_displayControlSet->getControlIndex(upperLimitBrightness);
}
catch (...)
{
// DDPC is optional
m_participantServicesInterface->writeMessageDebug(
ParticipantMessage(FLF, "DDPC was not present. Setting upper limit to 100."));
upperLimitIndex = 0; // Max brightness
}
if (m_displayControlSet == nullptr)
{
createDisplayControlSet(domainIndex);
}
if (upperLimitIndex >= (m_displayControlSet->getCount()) ||
lowerLimitIndex >= (m_displayControlSet->getCount()))
{
throw dptf_exception("Retrieved control index out of control set bounds.");
}
if (upperLimitIndex > lowerLimitIndex)
{
lowerLimitIndex = m_displayControlSet->getCount() - 1;
m_participantServicesInterface->writeMessageWarning(
ParticipantMessage(FLF, "Limit index mismatch, ignoring lower limit."));
}
m_displayControlDynamicCaps = new DisplayControlDynamicCaps(upperLimitIndex, lowerLimitIndex);
}
