libkms++/property: Add const std::string to_str(uint64_t val) const

2 files changed, 41 insertions, 0 deletions

diff --git a/libkms++/property.cpp b/libkms++/property.cpp
index e01bf60..3b8a0b8 100644
--- a/libkms++/property.cpp
+++ b/libkms++/property.cpp
@@ -36,4 +36,44 @@ const string& Property::name() const
 {
 	return m_name;
 }
+
+const std::string Property::to_str(uint64_t val) const
+{
+	drmModePropertyPtr p = m_priv->drm_prop;
+	string ret;
+
+	if (p->flags & DRM_MODE_PROP_ENUM) {
+		for (int i = 0; i < p->count_enums; i++) {
+			if (p->enums[i].value == val) {
+				ret += string("\"") + p->enums[i].name + "\"";
+				break;
+			}
+		}
+		ret += " (enum: " + to_string(val) + ")";
+	} else if (p->flags & DRM_MODE_PROP_RANGE) {
+		ret += to_string(val);
+		if (p->count_values == 2)
+			ret += " [" + to_string(p->values[0]) + "-" +
+				to_string(p->values[1]) + "]";
+		else
+			ret += " <broken range>";
+	} else if (p->flags & DRM_MODE_PROP_BLOB) {
+		ret += "Blob id: " + to_string(val);
+
+		auto blob = drmModeGetPropertyBlob(card().fd(), (uint32_t) val);
+		if (blob) {
+			ret += " length: " + to_string(blob->length);
+			drmModeFreePropertyBlob(blob);
+		}
+	} else {
+		ret += to_string(val);
+	}
+
+	if (p->flags & DRM_MODE_PROP_PENDING)
+		ret += " (pendig)";
+	if (p->flags & DRM_MODE_PROP_IMMUTABLE)
+		ret += " (immutable)";
+
+	return ret;
+}
 }
diff --git a/libkms++/property.h b/libkms++/property.h
index ffab8d0..4cb2653 100644
--- a/libkms++/property.h
+++ b/libkms++/property.h
@@ -15,6 +15,7 @@ public:
 
 	const std::string& name() const;
 
+	const std::string to_str(uint64_t val) const;
 private:
 	Property(Card& card, uint32_t id);
 	~Property();