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FormEngine.cs
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FormEngine.cs
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using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.IO;
using System.Reflection;
using SharpDX.Windows;
namespace SaintCoinach.Graphics.Viewer {
using SharpDX;
using SharpDX.D3DCompiler;
using SharpDX.Direct3D;
using SharpDX.Direct3D11;
using SharpDX.DXGI;
using Buffer = SharpDX.Direct3D11.Buffer;
using Device = SharpDX.Direct3D11.Device;
public class FormEngine : Engine {
const int ScreenshotWidth = 2048;
const int ScreenshotHeight = 2048;
const long ResizeDelay = 250;
#region Fields
private bool _IsResizePending;
private Stopwatch _ResizeTimer = new Stopwatch();
private SwapChain _SwapChain;
private IInputService _InputService;
private string _Title;
private RenderForm _Form;
private Texture2D _ScreenshotTarget;
private Texture2D _ScreenshotStencil;
private RenderTargetView _ScreenshotTargetView;
private DepthStencilView _ScreenshotStencilView;
#endregion
#region Properties
public override IInputService InputService {
get { return _InputService; }
}
public RenderForm Form { get { return _Form; } }
public override bool IsActive {
get { return Form.ContainsFocus; }
}
#endregion
#region Constructor
public FormEngine(string title) {
_Title = title;
}
#endregion
#region Run
public void Run() {
using (_Form = new RenderForm(_Title)) {
var assembly = Assembly.GetExecutingAssembly();
using (var iconStream = assembly.GetManifestResourceStream("SaintCoinach.Graphics.Viewer.Viewer.ico"))
_Form.Icon = new System.Drawing.Icon(iconStream);
SetUp(Form.ClientSize.Width, Form.ClientSize.Height);
Form.ClientSizeChanged += Form_ClientSizeChanged;
_InputService = new FormInputService(Form);
Initialize();
Load();
RenderLoop.Run(Form, EngineLoop);
Unload();
}
}
void Form_ClientSizeChanged(object sender, EventArgs e) {
_IsResizePending = true;
_ResizeTimer.Restart();
}
#endregion
protected override Device CreateDevice(int width, int height) {
var desc = new SwapChainDescription {
BufferCount = 1,
Flags = SwapChainFlags.None,
IsWindowed = true,
ModeDescription = new ModeDescription(
width, height,
new Rational(60, 1), Format.R8G8B8A8_UNorm),
OutputHandle = Form.Handle,
SampleDescription = new SampleDescription(8, 0), //new SampleDescription(8, Device.CheckMultisampleQualityLevels(Format.R8G8B8A8_UNorm, 8)),
SwapEffect = SwapEffect.Discard,
Usage = Usage.RenderTargetOutput | Usage.BackBuffer | Usage.Shared,
};
SharpDX.Direct3D11.Device device;
SharpDX.Direct3D11.Device.CreateWithSwapChain(DriverType.Hardware, DeviceCreationFlags.None, desc, out device, out _SwapChain);
return device;
}
private bool _IsResizing;
protected override void Resize(int newWidth, int newHeight) {
_IsResizing = true;
base.Resize(newWidth, newHeight);
}
protected override Texture2D CreateRenderTarget(int width, int height) {
if(_IsResizing)
_SwapChain.ResizeBuffers(1, width, height, Format.Unknown, SwapChainFlags.None);
_IsResizing = false;
return Texture2D.FromSwapChain<Texture2D>(_SwapChain, 0);
}
protected override void Draw(EngineTime time) {
Device.ImmediateContext.ClearRenderTargetView(RenderTargetView, Color.CornflowerBlue);
base.Draw(time);
}
protected override void Present() {
_SwapChain.Present(0, PresentFlags.None);
}
protected override void Dispose(bool disposing) {
base.Dispose(disposing);
if (disposing) {
if (_ScreenshotTargetView != null)
_ScreenshotTargetView.Dispose();
if (_ScreenshotStencilView != null)
_ScreenshotStencilView.Dispose();
if (_ScreenshotTarget != null)
_ScreenshotTarget.Dispose();
if (_ScreenshotStencil != null)
_ScreenshotStencil.Dispose();
_ScreenshotStencil = null;
_ScreenshotStencilView = null;
_ScreenshotTarget = null;
_ScreenshotTargetView = null;
if (_SwapChain != null)
_SwapChain.Dispose();
_SwapChain = null;
if (_Form != null)
_Form.Dispose();
_Form = null;
}
}
protected void ResizeToClient() {
Resize(Form.ClientSize.Width, Form.ClientSize.Height);
}
protected void ResizeToScreenshot() {
Resize(ScreenshotWidth, ScreenshotHeight);
}
protected void TakeScreenshot(EngineTime time) {
Camera.Update(time);
Device.ImmediateContext.OutputMerger.SetDepthStencilState(DepthStencilState);
Device.ImmediateContext.OutputMerger.SetBlendState(BlendState);
Device.ImmediateContext.Rasterizer.State = RasterizerState;
Device.ImmediateContext.OutputMerger.SetTargets(_ScreenshotStencilView, _ScreenshotTargetView);
Device.ImmediateContext.ClearDepthStencilView(_ScreenshotStencilView, DepthStencilClearFlags.Depth | DepthStencilClearFlags.Stencil, 1f, 0);
Device.ImmediateContext.ClearRenderTargetView(_ScreenshotTargetView, Color.Transparent);
base.Draw(time);
// Texture2D.ToFile(Device.ImmediateContext, _ScreenshotTarget, ImageFileFormat.Png, string.Format("SS-{0:yyyyMMdd-HHmmss}.png", DateTime.Now));
ResizeToClient();
}
protected override void Update(EngineTime time) {
if (_IsResizePending) {
var elapsed = _ResizeTimer.ElapsedMilliseconds;
if (elapsed > ResizeDelay) {
ResizeToClient();
_ResizeTimer.Reset();
_IsResizePending = false;
}
}
if (Keyboard.WasKeyPressed(System.Windows.Forms.Keys.F12)) {
if (_ScreenshotTargetView == null) {
var rtTexDesc = RenderTarget.Description;
rtTexDesc.SampleDescription = new SampleDescription(1, 0);
rtTexDesc.Width = ScreenshotWidth;
rtTexDesc.Height = ScreenshotHeight;
_ScreenshotTarget = new Texture2D(Device, rtTexDesc);
_ScreenshotTargetView = new RenderTargetView(Device, _ScreenshotTarget);
var dsTexDesc = new Texture2DDescription {
Format = Format.D24_UNorm_S8_UInt,
ArraySize = 1,
MipLevels = 1,
Width = _ScreenshotTarget.Description.Width,
Height = _ScreenshotTarget.Description.Height,
SampleDescription = _ScreenshotTarget.Description.SampleDescription,
Usage = ResourceUsage.Default,
BindFlags = BindFlags.DepthStencil,
CpuAccessFlags = CpuAccessFlags.None,
OptionFlags = ResourceOptionFlags.None,
};
_ScreenshotStencil = new Texture2D(Device, dsTexDesc);
_ScreenshotStencilView = new DepthStencilView(Device, _ScreenshotStencil, new DepthStencilViewDescription {
Flags = DepthStencilViewFlags.None,
Dimension = DepthStencilViewDimension.Texture2DMultisampled,
Format = dsTexDesc.Format
});
}
ResizeToScreenshot();
TakeScreenshot(time);
ResizeToClient();
}
base.Update(time);
}
}
}