/*
* Copyright(c) 2020 Samsung Electronics Co., Ltd.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
using System;
using System.ComponentModel;
using System.Runtime.InteropServices;
namespace Tizen.NUI
{
///
/// VertexBuffer is a handle to an object that contains a buffer of structured data.
/// VertexBuffers can be used to provide data to Geometry objects.
///
/// 8
public class VertexBuffer : BaseHandle
{
///
/// Creates a VertexBuffer.
///
/// The map of names and types that describes the components of the buffer.
/// 8
public VertexBuffer(PropertyMap bufferFormat) : this(Interop.VertexBuffer.New(PropertyMap.getCPtr(bufferFormat)), true)
{
if (NDalicPINVOKE.SWIGPendingException.Pending)
throw NDalicPINVOKE.SWIGPendingException.Retrieve();
}
internal VertexBuffer(global::System.IntPtr cPtr, bool cMemoryOwn) : base(Interop.VertexBuffer.Upcast(cPtr), cMemoryOwn)
{
}
///
/// Updates the whole buffer information.
/// This function expects an array of structures with the same format that was given in the construction.
///
/// The vertex data that will be copied to the buffer.
/// Thrown when vertices is null.
/// 8
public void SetData(VertexType[] vertices) where VertexType : struct
{
if (null == vertices)
{
throw new ArgumentNullException(nameof(vertices));
}
int structSize = Marshal.SizeOf();
global::System.IntPtr buffer = Marshal.AllocHGlobal(structSize * vertices.Length);
for (int i = 0; i < vertices.Length; i++)
{
Marshal.StructureToPtr(vertices[i], buffer + i * structSize, true);
}
Interop.VertexBuffer.SetData(swigCPtr, buffer, (uint)vertices.Length);
if (NDalicPINVOKE.SWIGPendingException.Pending)
throw NDalicPINVOKE.SWIGPendingException.Retrieve();
}
///
/// Gets the number of elements in the buffer.
///
/// Number of elements in the buffer.
/// 8
public uint GetSize()
{
uint ret = Interop.VertexBuffer.GetSize(swigCPtr);
if (NDalicPINVOKE.SWIGPendingException.Pending)
throw NDalicPINVOKE.SWIGPendingException.Retrieve();
return ret;
}
internal static global::System.Runtime.InteropServices.HandleRef getCPtr(VertexBuffer obj)
{
return (obj == null) ? new global::System.Runtime.InteropServices.HandleRef(null, global::System.IntPtr.Zero) : obj.swigCPtr;
}
/// This will not be public opened.
[EditorBrowsable(EditorBrowsableState.Never)]
protected override void ReleaseSwigCPtr(System.Runtime.InteropServices.HandleRef swigCPtr)
{
Interop.VertexBuffer.DeleteVertexBuffer(swigCPtr);
}
}
}