UPBGE: Implement PyObjectFrom with float array.

Previously when we only get a float array and wanted to convert
it to python vector we were obligated to convert first to MT_Vector.
To avoid this extra conversion PyObjectFrom is also implemented
for float array of a template size.
This improvement is used mainly in KX_VertexProxy, but in consideration
the data passed to PyObjectFrom must be a array reference not a
pointer, to do so the getter in RAS_Vertex are modified.

source/gameengine/Ketsji/BL_Texture.cpp

@@ -690,7 +690,7 @@ PyObject *BL_Texture::pyattr_get_uv_offset(EXP_PyObjectPlus *self_v, const EXP_P
 #else
 	BL_Texture *self = static_cast<BL_Texture *>(self_v);
 
-	return PyObjectFrom(MT_Vector3(self->GetMTex()->ofs));
+	return PyObjectFrom(self->GetMTex()->ofs);
 #endif
 }
 
@@ -714,7 +714,7 @@ PyObject *BL_Texture::pyattr_get_uv_size(EXP_PyObjectPlus *self_v, const EXP_PYA
 #else
 	BL_Texture *self = static_cast<BL_Texture *>(self_v);
 
-	return PyObjectFrom(MT_Vector3(self->GetMTex()->size));
+	return PyObjectFrom(self->GetMTex()->size);
 #endif
 }
 

source/gameengine/Ketsji/KX_PyMath.h

@@ -276,6 +276,20 @@ PyObject *PyObjectFrom(const MT_Vector4 &pos);
  */
 PyObject *PyColorFromVector(const MT_Vector3 &vec);
 
+template <unsigned short Size>
+PyObject *PyObjectFrom(const float (&vec)[Size])
+{
+#ifdef USE_MATHUTILS
+	return Vector_CreatePyObject(vec, Size, nullptr);
+#else
+	PyObject *list = PyList_New(Size);
+	for (unsigned short i = 0; i < Size; ++i) {
+		PyList_SET_ITEM(list, i, PyFloat_FromDouble(vec[i]));
+	}
+	return list;
+#endif
+}
+
 #endif  // WITH_PYTHON
 
 #endif  // __KX_PYMATH_H__

source/gameengine/Ketsji/KX_VertexProxy.cpp

@@ -176,13 +176,13 @@ PyObject *KX_VertexProxy::pyattr_get_v2(EXP_PyObjectPlus *self_v, const EXP_PYAT
 PyObject *KX_VertexProxy::pyattr_get_XYZ(EXP_PyObjectPlus *self_v, const EXP_PYATTRIBUTE_DEF *attrdef)
 {
 	KX_VertexProxy *self = static_cast<KX_VertexProxy *>(self_v);
-	return PyObjectFrom(MT_Vector3(self->m_vertex.GetXYZ()));
+	return PyObjectFrom(self->m_vertex.GetXYZ());
 }
 
 PyObject *KX_VertexProxy::pyattr_get_UV(EXP_PyObjectPlus *self_v, const EXP_PYATTRIBUTE_DEF *attrdef)
 {
 	KX_VertexProxy *self = static_cast<KX_VertexProxy *>(self_v);
-	return PyObjectFrom(MT_Vector2(self->m_vertex.GetUv(0)));
+	return PyObjectFrom(self->m_vertex.GetUv(0));
 }
 
 static int kx_vertex_proxy_get_uvs_size_cb(void *self_v)
@@ -270,7 +270,7 @@ PyObject *KX_VertexProxy::pyattr_get_color(EXP_PyObjectPlus *self_v, const EXP_P
 PyObject *KX_VertexProxy::pyattr_get_normal(EXP_PyObjectPlus *self_v, const EXP_PYATTRIBUTE_DEF *attrdef)
 {
 	KX_VertexProxy *self = static_cast<KX_VertexProxy *>(self_v);
-	return PyObjectFrom(MT_Vector3(self->m_vertex.GetNormal()));
+	return PyObjectFrom(self->m_vertex.GetNormal());
 }
 
 int KX_VertexProxy::pyattr_set_x(EXP_PyObjectPlus *self_v, const struct EXP_PYATTRIBUTE_DEF *attrdef, PyObject *value)
@@ -566,7 +566,7 @@ std::string KX_VertexProxy::GetName()
 // stuff for python integration
 PyObject *KX_VertexProxy::PyGetXYZ()
 {
-	return PyObjectFrom(m_vertex.xyz());
+	return PyObjectFrom(m_vertex.GetXYZ());
 }
 
 PyObject *KX_VertexProxy::PySetXYZ(PyObject *value)
@@ -582,7 +582,7 @@ PyObject *KX_VertexProxy::PySetXYZ(PyObject *value)
 
 PyObject *KX_VertexProxy::PyGetNormal()
 {
-	return PyObjectFrom(MT_Vector3(m_vertex.GetNormal()));
+	return PyObjectFrom(m_vertex.GetNormal());
 }
 
 PyObject *KX_VertexProxy::PySetNormal(PyObject *value)
@@ -625,7 +625,7 @@ PyObject *KX_VertexProxy::PySetRGBA(PyObject *value)
 
 PyObject *KX_VertexProxy::PyGetUV1()
 {
-	return PyObjectFrom(MT_Vector2(m_vertex.GetUv(0)));
+	return PyObjectFrom(m_vertex.GetUv(0));
 }
 
 PyObject *KX_VertexProxy::PySetUV1(PyObject *value)
@@ -641,7 +641,7 @@ PyObject *KX_VertexProxy::PySetUV1(PyObject *value)
 
 PyObject *KX_VertexProxy::PyGetUV2()
 {
-	return (m_vertex.GetFormat().uvSize > 1) ? PyObjectFrom(MT_Vector2(m_vertex.GetUv(1))) : PyObjectFrom(MT_Vector2(0.0f, 0.0f));
+	return (m_vertex.GetFormat().uvSize > 1) ? PyObjectFrom(m_vertex.GetUv(1)) : PyObjectFrom(MT_Vector2(0.0f, 0.0f));
 }
 
 PyObject *KX_VertexProxy::PySetUV2(PyObject *args)

source/gameengine/Rasterizer/RAS_Vertex.h

@@ -128,17 +128,17 @@ class RAS_Vertex
 		return m_format;
 	}
 
-	inline const float *GetXYZ() const
+	inline const float (&GetXYZ() const)[3]
 	{
 		return m_data->position;
 	}
 
-	inline const float *GetNormal() const
+	inline const float (&GetNormal() const)[3]
 	{
 		return m_data->normal;
 	}
 
-	inline const float *GetTangent() const
+	inline const float (&GetTangent() const)[4]
 	{
 		return m_data->tangent;
 	}
@@ -173,9 +173,9 @@ class RAS_Vertex
 		tangent.getValue(m_data->tangent);
 	}
 
-	inline const float *GetUv(const int index) const
+	inline const float (&GetUv(const int index) const)[2]
 	{
-		return GetUvInternal(index);
+		return reinterpret_cast<float (&)[2]>(*GetUvInternal(index));
 	}
 
 	inline void SetUV(const int index, const MT_Vector2& uv)
@@ -188,9 +188,9 @@ class RAS_Vertex
 		copy_v2_v2(GetUvInternal(index), uv);
 	}
 
-	inline const unsigned char *GetColor(const int index) const
+	inline const unsigned char (&GetColor(const int index) const)[4]
 	{
-		return (unsigned char *)GetColorInternal(index);
+		return reinterpret_cast<const unsigned char (&)[4]>(*GetColorInternal(index));
 	}
 
 	inline const unsigned int GetRawColor(const int index) const