public override void Hook()
{
if (_d3d11VTblAddresses == null)
{
_d3d11VTblAddresses = new List <IntPtr>();
_dxgiSwapChainVTblAddresses = new List <IntPtr>();
#region Get Device and SwapChain method addresses
// Create temporary device + swapchain and determine method addresses
SlimDX.Direct3D11.Device device;
SwapChain swapChain;
using (SlimDX.Windows.RenderForm renderForm = new SlimDX.Windows.RenderForm())
{
SlimDX.Result result = SlimDX.Direct3D11.Device.CreateWithSwapChain(
DriverType.Hardware,
DeviceCreationFlags.None,
DXGI.CreateSwapChainDescription(renderForm.Handle),
out device,
out swapChain);
if (result.IsSuccess)
{
this.DebugMessage("Hook: Device created");
using (device)
{
_d3d11VTblAddresses.AddRange(GetVTblAddresses(device.ComPointer, D3D11_DEVICE_METHOD_COUNT));
using (swapChain)
{
_dxgiSwapChainVTblAddresses.AddRange(GetVTblAddresses(swapChain.ComPointer, DXGI.DXGI_SWAPCHAIN_METHOD_COUNT));
}
}
}
}
#endregion
}
// We will capture the backbuffer here
DXGISwapChain_PresentHook = LocalHook.Create(
_dxgiSwapChainVTblAddresses[(int)DXGI.DXGISwapChainVTbl.Present],
new DXGISwapChain_PresentDelegate(PresentHook),
this);
// We will capture target/window resizes here
DXGISwapChain_ResizeTargetHook = LocalHook.Create(
_dxgiSwapChainVTblAddresses[(int)DXGI.DXGISwapChainVTbl.ResizeTarget],
new DXGISwapChain_ResizeTargetDelegate(ResizeTargetHook),
this);
/*
* Don't forget that all hooks will start deactivated...
* The following ensures that all threads are intercepted:
* Note: you must do this for each hook.
*/
DXGISwapChain_PresentHook.ThreadACL.SetExclusiveACL(new Int32[1]);
DXGISwapChain_ResizeTargetHook.ThreadACL.SetExclusiveACL(new Int32[1]);
}
public override void Hook()
{
this.DebugMessage("Hook: Begin");
// Determine method addresses in Direct3D10.Device, and DXGI.SwapChain
if (_d3d10_1VTblAddresses == null)
{
_d3d10_1VTblAddresses = new List <IntPtr>();
_dxgiSwapChainVTblAddresses = new List <IntPtr>();
this.DebugMessage("Hook: Before device creation");
using (Factory1 factory = new Factory1())
{
using (var device = new SlimDX.Direct3D10_1.Device1(factory.GetAdapter(0), DriverType.Hardware, SlimDX.Direct3D10.DeviceCreationFlags.None, FeatureLevel.Level_10_1))
{
this.DebugMessage("Hook: Device created");
_d3d10_1VTblAddresses.AddRange(GetVTblAddresses(device.ComPointer, D3D10_1_DEVICE_METHOD_COUNT));
using (var renderForm = new SlimDX.Windows.RenderForm())
{
using (var sc = new SwapChain(factory, device, DXGI.CreateSwapChainDescription(renderForm.Handle)))
{
_dxgiSwapChainVTblAddresses.AddRange(GetVTblAddresses(sc.ComPointer, DXGI.DXGI_SWAPCHAIN_METHOD_COUNT));
}
}
}
}
}
// We will capture the backbuffer here
DXGISwapChain_PresentHook = LocalHook.Create(
_dxgiSwapChainVTblAddresses[(int)DXGI.DXGISwapChainVTbl.Present],
new DXGISwapChain_PresentDelegate(PresentHook),
this);
// We will capture target/window resizes here
DXGISwapChain_ResizeTargetHook = LocalHook.Create(
_dxgiSwapChainVTblAddresses[(int)DXGI.DXGISwapChainVTbl.ResizeTarget],
new DXGISwapChain_ResizeTargetDelegate(ResizeTargetHook),
this);
/*
* Don't forget that all hooks will start deactivated...
* The following ensures that all threads are intercepted:
* Note: you must do this for each hook.
*/
DXGISwapChain_PresentHook.ThreadACL.SetExclusiveACL(new Int32[1]);
DXGISwapChain_ResizeTargetHook.ThreadACL.SetExclusiveACL(new Int32[1]);
}
/// <summary>
/// Hooked to allow resizing a texture/surface that is reused. Currently not in use as we create the texture for each request
/// to support different sizes each time (as we use DirectX to copy only the region we are after rather than the entire backbuffer)
/// </summary>
/// <param name="swapChainPtr"></param>
/// <param name="newTargetParameters"></param>
/// <returns></returns>
int ResizeTargetHook(IntPtr swapChainPtr, ref DXGI.DXGI_MODE_DESC newTargetParameters)
{
using (SlimDX.DXGI.SwapChain swapChain = SlimDX.DXGI.SwapChain.FromPointer(swapChainPtr))
{
// This version creates a new texture for each request so there is nothing to resize.
// IF the size of the texture is known each time, we could create it once, and then possibly need to resize it here
return swapChain.ResizeTarget(
new SlimDX.DXGI.ModeDescription()
{
Format = newTargetParameters.Format,
Height = newTargetParameters.Height,
RefreshRate = newTargetParameters.RefreshRate,
Scaling = newTargetParameters.Scaling,
ScanlineOrdering = newTargetParameters.ScanlineOrdering,
Width = newTargetParameters.Width
}
).Code;
}
}
