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backends/drm: query min and max values for properties

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This commit is contained in:
Xaver Hugl 2021-12-06 13:17:01 +01:00
parent 4f2c3a00c4
commit cfeeb817bf
2 changed files with 21 additions and 0 deletions
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15
src/backends/drm/drm_property.cpp
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@ -30,6 +30,11 @@ DrmProperty::DrmProperty(DrmObject *obj, drmModePropertyRes *prop, uint64_t val,
m_enumNames = enumNames;
initEnumMap(prop);
}
if (prop->flags & DRM_MODE_PROP_RANGE) {
Q_ASSERT(prop->count_values > 1);
m_minValue = prop->values[0];
m_maxValue = prop->values[1];
}
}
DrmProperty::~DrmProperty() = default;
@ -146,4 +151,14 @@ void DrmProperty::setLegacy()
m_legacy = true;
}
uint64_t DrmProperty::minValue() const
{
return m_minValue;
}
uint64_t DrmProperty::maxValue() const
{
return m_maxValue;
}
}

6
src/backends/drm/drm_property.h
View file

@ -60,6 +60,9 @@ public:
void setCurrent(uint64_t value);
uint64_t current() const;
uint64_t minValue() const;
uint64_t maxValue() const;
void commit();
void commitPending();
void rollbackPending();
@ -87,6 +90,9 @@ private:
// the value currently set for or by the kernel
uint64_t m_current = 0;
uint64_t m_minValue = -1;
uint64_t m_maxValue = -1;
QMap<uint32_t, uint64_t> m_enumMap;
QVector<QByteArray> m_enumNames;
const bool m_immutable;