private int Present(IntPtr swapChainPtr, int syncInterval, PresentFlags flags)
{
SwapChain swapChain = (SharpDX.DXGI.SwapChain)swapChainPtr;
swapChain.GetDevice(typeof(SharpDX.Direct3D11.Device).GUID, out IntPtr deviceOut);
var device = new SharpDX.Direct3D11.Device(deviceOut);
DeviceContext deviceContext = new DeviceContext(device);
if (this.isFirst)
{
isFirst = false;
this.srvFront = GetShaderResourceView(device, Brushes.Gold);
this.srvback = GetShaderResourceView(device, Brushes.Red);
var stencilDesc = new DepthStencilStateDescription()
{
DepthComparison = Comparison.Less,
IsDepthEnabled = true,
IsStencilEnabled = true,
StencilReadMask = 0xFF,
StencilWriteMask = 0xFF,
FrontFace = new DepthStencilOperationDescription()
{
FailOperation = StencilOperation.Keep,
DepthFailOperation = StencilOperation.Increment,
PassOperation = StencilOperation.Keep,
Comparison = Comparison.Always
},
BackFace = new DepthStencilOperationDescription()
{
FailOperation = StencilOperation.Keep,
DepthFailOperation = StencilOperation.Decrement,
PassOperation = StencilOperation.Keep,
Comparison = Comparison.Always
}
};
stencilDesc.IsDepthEnabled = false;
stencilDesc.DepthWriteMask = DepthWriteMask.All;
depthStencilStateDisabled = new DepthStencilState(deviceContext.Device, stencilDesc);
stencilDesc.IsDepthEnabled = true;
stencilDesc.DepthWriteMask = DepthWriteMask.All;
stencilDesc.DepthComparison = Comparison.GreaterEqual;
stencilDesc.IsStencilEnabled = false;
stencilDesc.StencilReadMask = 0xFF;
stencilDesc.StencilWriteMask = 0x0;
stencilDesc.FrontFace.FailOperation = StencilOperation.Zero;
stencilDesc.FrontFace.DepthFailOperation = StencilOperation.Zero;
stencilDesc.FrontFace.PassOperation = StencilOperation.Keep;
stencilDesc.FrontFace.Comparison = Comparison.Equal;
stencilDesc.BackFace.FailOperation = StencilOperation.Zero;
stencilDesc.BackFace.DepthFailOperation = StencilOperation.Zero;
stencilDesc.BackFace.PassOperation = StencilOperation.Zero;
stencilDesc.BackFace.Comparison = Comparison.Never;
depthStencilStateReadonly = new DepthStencilState(deviceContext.Device, stencilDesc);
}
Dx11.DXFont dXFont = new Dx11.DXFont(device, deviceContext);
dXFont.Initialize("宋体", 14, FontStyle.Bold, true);
DXSprite dXSprite = new DXSprite(device, deviceContext);
dXSprite.DrawString(50, 50, "ceshi", 255, 255, 233, 233, dXFont);
swapChain.Present(syncInterval, flags);
return(SharpDX.Result.Ok.Code);
}
public void DrawString(int X, int Y, string text, int R, int G, int B, int A, DXFont F)
{
SharpDX.Mathematics.Interop.RawColor4 blendFactor = new Color4(1.0f);
SharpDX.Mathematics.Interop.RawColor4 backupBlendFactor;
int backupMask;
var backupBlendState = _deviceContext.OutputMerger.GetBlendState(out backupBlendFactor, out backupMask);
_deviceContext.OutputMerger.SetBlendState(_transparentBS, blendFactor);
BeginBatch(F.GetFontSheetSRV());
int length = text.Length;
int posX = X;
int posY = Y;
Color4 color;
Vector4 Vec = new Vector4(R > 0 ? (float)(R / 255.0f) : 0.0f, G > 0 ? (float)(G / 255.0f) : 0.0f, B > 0 ? (float)(B / 255.0f) : 0.0f, A > 0 ? (float)(A / 255.0f) : 0.0f);
color = new Color4(Vec);
for (int i = 0; i < length; ++i)
{
char character = text[i];
if (character == ' ')
{
posX += F.GetSpaceWidth();
}
else if (character == '\n')
{
posX = X;
posY += F.GetCharHeight();
}
else
{
Rectangle charRect = F.GetCharRect(character);
int width = charRect.Right - charRect.Left;
int height = charRect.Bottom - charRect.Top;
Draw(new Rectangle(posX, posY, posX + width, posY + height), charRect, color);
posX += width + 1;
}
}
EndBatch();
_deviceContext.OutputMerger.SetBlendState(backupBlendState, backupBlendFactor, backupMask);
}
