// ===========================================================================
// ©2013-2026 WebSupergoo. All rights reserved.
//
// This source code is for use exclusively with the ABCpdf product with
// which it is distributed, under the terms of the license for that
// product. Details can be found at
//
// http://www.websupergoo.com/
//
// This copyright notice must not be deleted and must be reproduced alongside
// any sections of code extracted from this module.
// ===========================================================================
using System;
using System.Windows;
using System.Windows.Interop;
using System.Runtime.InteropServices;
namespace Glue3DUtilities
{
/// <summary>Implementation of HwndHost to host the Win32 based OpenGL window</summary>
internal class Render3DHost : HwndHost
{
#region Private Data
private int m_width;
private int m_height;
private IntPtr m_renderProxyHwnd;
private static int s_viewCounter = 0;
#endregion
#region Properties
/// <summary>IntPtr to the RenderProxy instance</summary>
public IntPtr RenderProxy { get; private set; }
/// <summary>The name of the RenderProxy instance</summary>
public string ProxyName { get; private set; }
/// <summary>Flags describing details of the RenderProxy, see also ERenderProxyFlags</summary>
public uint ProxyFlags { get; private set; }
/// <summary>The antialiasing color samples currently used</summary>
public ushort AntialiasingColorSamples { get; private set; }
/// <summary>The antialiasing coverage samples currently used (CSAA)</summary>
public ushort AntialiasingCoverageSamples { get; private set; }
/// <summary>The list of available antialiasing modes. Note: Uses packed ints containing the color (lo word) and coverage (hi word) samples</summary>
public uint[] AvailableAAModes { get; private set; }
/// <summary>The currently used anisotropic filtering mode</summary>
public uint Anisotropy { get; private set; }
/// <summary>The list of available anisotropic filtering modes</summary>
public uint[] AnisotropyModes { get; private set; }
#endregion
#region Methods
/// <summary>Construct an instance, specifying window dimensions</summary>
public Render3DHost(double width, double height)
{
m_width = (Int32)width;
m_height = (Int32)height;
RenderProxy = IntPtr.Zero;
m_renderProxyHwnd = IntPtr.Zero;
}
/// <summary>Set up the core window from an HWND; part of HwndHost interface</summary>
protected override HandleRef BuildWindowCore(HandleRef parent)
{
++s_viewCounter;
WebSupergoo.RenderProxyParams proxyParams = new WebSupergoo.RenderProxyParams();
proxyParams.parent = parent.Handle.ToInt64();
proxyParams.width = (UInt32)m_width;
proxyParams.height = (UInt32)m_height;
proxyParams.setUInt32List = delegate (int field, uint[] list, uint count) {
switch(field) {
case WebSupergoo.RenderProxyParams.availableAAModesField:
AvailableAAModes = list;
break;
case WebSupergoo.RenderProxyParams.anisotropyModesField:
AnisotropyModes = list;
break;
}
};
WebSupergoo.RenderProxyInfo proxyInfo = new WebSupergoo.RenderProxyInfo();
RenderProxy = Dll_Glue3D.CreateRenderProxy(proxyParams, ref proxyInfo);
Name = Dll_Glue3D.StringFromDll(proxyInfo.name, proxyInfo.nameLen);
ProxyFlags = proxyInfo.flags;
AntialiasingColorSamples = proxyInfo.antialiasingColorSamples;
AntialiasingCoverageSamples = proxyInfo.antialiasingCoverageSamples;
Anisotropy = proxyInfo.anisotropy;
if (RenderProxy == IntPtr.Zero)
return new HandleRef(null, IntPtr.Zero);
m_renderProxyHwnd = Dll_Glue3D.GetRenderProxyHwnd(RenderProxy);
if (m_renderProxyHwnd == IntPtr.Zero)
return new HandleRef(null, IntPtr.Zero);
return new HandleRef(this, m_renderProxyHwnd);
}
/// <summary>Destroy the core (HWND base) window; part of HwndHost interface</summary>
protected override void DestroyWindowCore(HandleRef hwnd)
{
if (RenderProxy != IntPtr.Zero)
{
Dll_Glue3D.DestroyRenderProxy(RenderProxy);
RenderProxy = m_renderProxyHwnd = IntPtr.Zero;
}
Dll_User32.DestroyWindow(m_renderProxyHwnd);
}
/// <summary>Window procedure (not handling anything in this case)</summary>
protected override IntPtr WndProc(IntPtr hwnd, int msg, IntPtr wParam, IntPtr lParam, ref bool handled)
{
handled = false;
return IntPtr.Zero;
}
#endregion
}
}
