fix incorrect geometry buffer size

openVulkanoCpp/Scene/TextDrawable.cpp

@@ -127,8 +127,23 @@ namespace OpenVulkano::Scene
 			return;
 		}
 
+		auto GetActualLength = [&]()
+		{
+			auto begin = text.begin();
+			auto end = text.end();
+			size_t len = 0;
+			while (begin != end)
+			{
+				uint32_t c = utf8::next(begin, end);
+				if (c == '\n') continue;
+				++len;
+			}
+			return len;
+		};
+
+		size_t len = GetActualLength();
 		m_geometry.Close();
-		m_geometry.Init(text.size() * 4, text.size() * 6);
+		m_geometry.Init(len * 4, len * 6);
 
 		// TODO: better implementation to decide what to use: data from atlas generator or data read from file
 		// we have msdf but loaded glyphs metadata from file before
@@ -161,7 +176,8 @@ namespace OpenVulkano::Scene
 		auto end = text.end();
 		const double lineHeight = meta->lineHeight;
 		double posY = pos.y;
-		for (size_t i = 0; begin != end; i++)
+		int i = 0;
+		while (begin != end)
 		{
 			uint32_t c = utf8::next(begin, end);
 			if (c == '\n')
@@ -216,6 +232,7 @@ namespace OpenVulkano::Scene
 			// TODO: change to lower value(or ideally remove completely) to avoid overlapping and make less space between symbols
 			// when setting for depth comparison operator will be available( <= )
 			cursorX += info.advance + 0.08;
+			++i;
 		}
 		SimpleDrawable::Init(m_shader, &m_geometry, &m_material, &m_uniBuffer);
 	}