static public SharpDX.DXGI.SwapEffect ToSwapEffect(PresentInterval presentInterval)
{
SharpDX.DXGI.SwapEffect effect;
switch (presentInterval)
{
case PresentInterval.One:
case PresentInterval.Two:
default:
#if WINRT
effect = SharpDX.DXGI.SwapEffect.FlipSequential;
#else
effect = SharpDX.DXGI.SwapEffect.Discard;
#endif
break;
case PresentInterval.Immediate:
effect = SharpDX.DXGI.SwapEffect.Sequential;
break;
}
//if (present.RenderTargetUsage != RenderTargetUsage.PreserveContents && present.MultiSampleCount == 0)
//effect = SharpDX.DXGI.SwapEffect.Discard;
return effect;
}
public void InitDefaults()
{
AutoDepthStencilFormat = Format.D24X8;
BackBufferWidth = 800;
BackBufferHeight = 600;
BackBufferFormat = Format.X8R8G8B8;
BackBufferCount = 1;
DeviceWindowHandle = IntPtr.Zero;
EnableAutoDepthStencil = true;
PresentFlags = PresentFlags.None;
PresentationInterval = PresentInterval.Immediate;
SwapEffect = SwapEffect.Discard;
Windowed = true;
}
/// <summary>
/// Initializes a new instance of the <see cref="PresentParameters"/> struct.
/// </summary>
/// <param name="backBufferWidth">Width of the back buffer.</param>
/// <param name="backBufferHeight">Height of the back buffer.</param>
/// <param name="backBufferFormat">The back buffer format.</param>
/// <param name="backBufferCount">The back buffer count.</param>
/// <param name="multiSampleType">Type of the multi sample.</param>
/// <param name="multiSampleQuality">The multi sample quality.</param>
/// <param name="swapEffect">The swap effect.</param>
/// <param name="deviceWindowHandle">The device window handle.</param>
/// <param name="windowed">if set to <c>true</c> [windowed].</param>
/// <param name="enableAutoDepthStencil">if set to <c>true</c> [enable auto depth stencil].</param>
/// <param name="autoDepthStencilFormat">The auto depth stencil format.</param>
/// <param name="presentFlags">The present flags.</param>
/// <param name="fullScreenRefreshRateInHz">The full screen refresh rate in Hz.</param>
/// <param name="presentationInterval">The presentation interval.</param>
public PresentParameters(int backBufferWidth, int backBufferHeight, Format backBufferFormat, int backBufferCount, MultisampleType multiSampleType, int multiSampleQuality, SwapEffect swapEffect, IntPtr deviceWindowHandle, bool windowed, bool enableAutoDepthStencil, Format autoDepthStencilFormat, PresentFlags presentFlags, int fullScreenRefreshRateInHz, PresentInterval presentationInterval)
{
BackBufferWidth = backBufferWidth;
BackBufferHeight = backBufferHeight;
BackBufferFormat = backBufferFormat;
BackBufferCount = backBufferCount;
MultiSampleType = multiSampleType;
MultiSampleQuality = multiSampleQuality;
SwapEffect = swapEffect;
DeviceWindowHandle = deviceWindowHandle;
Windowed = windowed;
EnableAutoDepthStencil = enableAutoDepthStencil;
AutoDepthStencilFormat = autoDepthStencilFormat;
PresentFlags = presentFlags;
FullScreenRefreshRateInHz = fullScreenRefreshRateInHz;
PresentationInterval = presentationInterval;
}
internal override void SetPresentationInterval(PresentInterval interval)
{
if (interval == PresentInterval.Default || interval == PresentInterval.One)
{
if (OSVersion.Equals("Mac OS X"))
{
// Apple is a big fat liar about swap_control_tear. Use stock VSync.
SDL.SDL_GL_SetSwapInterval(1);
}
else
{
if (SDL.SDL_GL_SetSwapInterval(-1) != -1)
{
System.Console.WriteLine("Using EXT_swap_control_tear VSync!");
}
else
{
System.Console.WriteLine("EXT_swap_control_tear unsupported. Fall back to standard VSync.");
SDL.SDL_ClearError();
SDL.SDL_GL_SetSwapInterval(1);
}
}
}
else if (interval == PresentInterval.Immediate)
{
SDL.SDL_GL_SetSwapInterval(0);
}
else if (interval == PresentInterval.Two)
{
SDL.SDL_GL_SetSwapInterval(2);
}
else
{
throw new Exception("Unrecognized PresentInterval!");
}
}
/// <summary>
/// Converts <see cref="PresentInterval"/> to OpenGL swap interval.
/// </summary>
/// <returns>A value according to EXT_swap_control</returns>
/// <param name="interval">The <see cref="PresentInterval"/> to convert.</param>
internal static int GetSwapInterval(this PresentInterval interval)
{
// See http://www.opengl.org/registry/specs/EXT/swap_control.txt
// and https://www.opengl.org/registry/specs/EXT/glx_swap_control_tear.txt
// OpenTK checks for EXT_swap_control_tear:
// if supported, a swap interval of -1 enables adaptive vsync;
// otherwise -1 is converted to 1 (vsync enabled.)
switch (interval)
{
case PresentInterval.Immediate:
return(0);
case PresentInterval.One:
return(1);
case PresentInterval.Two:
return(2);
case PresentInterval.Default:
default:
return(-1);
}
}
/// <summary>
/// Enables the profiling system drawing.
/// </summary>
/// <param name="excludeKeys">If true the keys specified after are excluded from rendering, if false they will be exclusively included.</param>
/// <param name="keys">The keys to exclude or include.</param>
public void EnableProfiling(bool excludeKeys = false, params ProfilingKey[] keys)
{
Enabled = true;
Visible = true;
// Backup current PresentInterval state
userPresentInterval = GraphicsDevice.Presenter.PresentInterval;
// Disable VSync (otherwise GPU results might be incorrect)
GraphicsDevice.Presenter.PresentInterval = PresentInterval.Immediate;
if (keys.Length == 0)
{
Profiler.EnableAll();
}
else
{
if (excludeKeys)
{
Profiler.EnableAll();
foreach (var profilingKey in keys)
{
Profiler.Disable(profilingKey);
}
}
else
{
foreach (var profilingKey in keys)
{
Profiler.Enable(profilingKey);
}
}
}
gcProfiler.Enable();
}
public void Clear()
{
autoDepthStencilFormat = DepthFormat.Unknown;
backBufferCount = 0;
backBufferFormat = SurfaceFormat.Unknown;
backBufferHeight = 0;
backBufferWidth = 0;
deviceWindowHandle = IntPtr.Zero;
enableAutoDepthStencil = false;
fullScreenRefreshRateInHz = 0;
isFullScreen = false;
multiSampleQuality = 0;
multiSampleType = MultiSampleType.None;
presentationInterval = PresentInterval.Default;
presentOptions = PresentOptions.None;
swapEffect = SwapEffect.Default;
}
public SwapChainRenderTarget(GraphicsDevice graphicsDevice,
IntPtr windowHandle,
int width,
int height,
bool mipMap,
SurfaceFormat surfaceFormat,
DepthFormat depthFormat,
int preferredMultiSampleCount,
RenderTargetUsage usage,
PresentInterval presentInterval)
: base(
graphicsDevice,
width,
height,
mipMap,
surfaceFormat,
depthFormat,
preferredMultiSampleCount,
usage,
SurfaceType.SwapChainRenderTarget)
{
var dxgiFormat = surfaceFormat == SurfaceFormat.Color
? SharpDX.DXGI.Format.B8G8R8A8_UNorm
: SharpDXHelper.ToFormat(surfaceFormat);
var multisampleDesc = new SampleDescription(1, 0);
if (preferredMultiSampleCount > 1)
{
multisampleDesc.Count = preferredMultiSampleCount;
multisampleDesc.Quality = (int)StandardMultisampleQualityLevels.StandardMultisamplePattern;
}
var desc = new SwapChainDescription()
{
ModeDescription =
{
Format = dxgiFormat,
Scaling = DisplayModeScaling.Stretched,
Width = width,
Height = height,
},
OutputHandle = windowHandle,
SampleDescription = multisampleDesc,
Usage = Usage.RenderTargetOutput,
BufferCount = 2,
SwapEffect = SharpDXHelper.ToSwapEffect(presentInterval),
IsWindowed = true,
};
PresentInterval = presentInterval;
// Once the desired swap chain description is configured, it must
// be created on the same adapter as our D3D Device
var d3dDevice = graphicsDevice._d3dDevice;
// First, retrieve the underlying DXGI Device from the D3D Device.
// Creates the swap chain
using (var dxgiDevice = d3dDevice.QueryInterface <SharpDX.DXGI.Device1>())
using (var dxgiAdapter = dxgiDevice.Adapter)
using (var dxgiFactory = dxgiAdapter.GetParent <Factory1>())
{
_swapChain = new SwapChain(dxgiFactory, dxgiDevice, desc);
}
// Obtain the backbuffer for this window which will be the final 3D rendertarget.
var backBuffer = SharpDX.Direct3D11.Resource.FromSwapChain <SharpDX.Direct3D11.Texture2D>(_swapChain, 0);
// Create a view interface on the rendertarget to use on bind.
_renderTargetViews = new[] { new RenderTargetView(d3dDevice, backBuffer) };
// Get the rendertarget dimensions for later.
var backBufferDesc = backBuffer.Description;
var targetSize = new Point(backBufferDesc.Width, backBufferDesc.Height);
_texture = backBuffer;
// Create the depth buffer if we need it.
if (depthFormat != DepthFormat.None)
{
dxgiFormat = SharpDXHelper.ToFormat(depthFormat);
// Allocate a 2-D surface as the depth/stencil buffer.
using (
var depthBuffer = new SharpDX.Direct3D11.Texture2D(d3dDevice,
new Texture2DDescription()
{
Format = dxgiFormat,
ArraySize = 1,
MipLevels = 1,
Width = targetSize.X,
Height = targetSize.Y,
SampleDescription = multisampleDesc,
Usage = ResourceUsage.Default,
BindFlags = BindFlags.DepthStencil,
}))
// Create a DepthStencil view on this surface to use on bind.
_depthStencilView = new DepthStencilView(d3dDevice, depthBuffer);
}
}
public SwapChainRenderTarget( GraphicsDevice graphicsDevice,
IntPtr windowHandle,
int width,
int height,
bool mipMap,
SurfaceFormat surfaceFormat,
DepthFormat depthFormat,
int preferredMultiSampleCount,
RenderTargetUsage usage,
PresentInterval presentInterval)
: base(
graphicsDevice,
width,
height,
mipMap,
surfaceFormat,
depthFormat,
preferredMultiSampleCount,
usage,
SurfaceType.SwapChainRenderTarget)
{
var dxgiFormat = surfaceFormat == SurfaceFormat.Color
? SharpDX.DXGI.Format.B8G8R8A8_UNorm
: SharpDXHelper.ToFormat(surfaceFormat);
var multisampleDesc = new SampleDescription(1, 0);
if (preferredMultiSampleCount > 1)
{
multisampleDesc.Count = preferredMultiSampleCount;
multisampleDesc.Quality = (int)StandardMultisampleQualityLevels.StandardMultisamplePattern;
}
var desc = new SwapChainDescription()
{
ModeDescription =
{
Format = dxgiFormat,
Scaling = DisplayModeScaling.Stretched,
Width = width,
Height = height,
},
OutputHandle = windowHandle,
SampleDescription = multisampleDesc,
Usage = Usage.RenderTargetOutput,
BufferCount = 2,
SwapEffect = SharpDXHelper.ToSwapEffect(presentInterval),
IsWindowed = true,
};
PresentInterval = presentInterval;
// Once the desired swap chain description is configured, it must
// be created on the same adapter as our D3D Device
var d3dDevice = graphicsDevice._d3dDevice;
// First, retrieve the underlying DXGI Device from the D3D Device.
// Creates the swap chain
using (var dxgiDevice = d3dDevice.QueryInterface<Device1>())
using (var dxgiAdapter = dxgiDevice.Adapter)
using (var dxgiFactory = dxgiAdapter.GetParent<Factory1>())
{
_swapChain = new SwapChain(dxgiFactory, dxgiDevice, desc);
}
// Obtain the backbuffer for this window which will be the final 3D rendertarget.
var backBuffer = SharpDX.Direct3D11.Resource.FromSwapChain<SharpDX.Direct3D11.Texture2D>(_swapChain, 0);
// Create a view interface on the rendertarget to use on bind.
_renderTargetViews = new[] { new RenderTargetView(d3dDevice, backBuffer) };
// Get the rendertarget dimensions for later.
var backBufferDesc = backBuffer.Description;
var targetSize = new Point(backBufferDesc.Width, backBufferDesc.Height);
_texture = backBuffer;
// Create the depth buffer if we need it.
if (depthFormat != DepthFormat.None)
{
dxgiFormat = SharpDXHelper.ToFormat(depthFormat);
// Allocate a 2-D surface as the depth/stencil buffer.
using (
var depthBuffer = new SharpDX.Direct3D11.Texture2D(d3dDevice,
new Texture2DDescription()
{
Format = dxgiFormat,
ArraySize = 1,
MipLevels = 1,
Width = targetSize.X,
Height = targetSize.Y,
SampleDescription = multisampleDesc,
Usage = ResourceUsage.Default,
BindFlags = BindFlags.DepthStencil,
}))
// Create a DepthStencil view on this surface to use on bind.
_depthStencilView = new DepthStencilView(d3dDevice, depthBuffer);
}
}
internal override void SetPresentationInterval(PresentInterval interval)
{
if (interval == PresentInterval.Default || interval == PresentInterval.One)
{
if (OSVersion.Equals("Mac OS X"))
{
// Apple is a big fat liar about swap_control_tear. Use stock VSync.
SDL.SDL_GL_SetSwapInterval(1);
}
else
{
if (SDL.SDL_GL_SetSwapInterval(-1) != -1)
{
System.Console.WriteLine("Using EXT_swap_control_tear VSync!");
}
else
{
System.Console.WriteLine("EXT_swap_control_tear unsupported. Fall back to standard VSync.");
SDL.SDL_ClearError();
SDL.SDL_GL_SetSwapInterval(1);
}
}
}
else if (interval == PresentInterval.Immediate)
{
SDL.SDL_GL_SetSwapInterval(0);
}
else if (interval == PresentInterval.Two)
{
SDL.SDL_GL_SetSwapInterval(2);
}
else
{
throw new Exception("Unrecognized PresentInterval!");
}
}
/// <summary>
/// Initializes a new instance of the <see cref="PresentationParameters" /> class with default values.
/// </summary>
public PresentationParameters()
{
BackBufferWidth = 800;
BackBufferHeight = 480;
BackBufferFormat = PixelFormat.R8G8B8A8.UNorm;
PresentationInterval = PresentInterval.Immediate;
DepthStencilFormat = DepthFormat.Depth24Stencil8;
MultiSampleCount = MSAALevel.None;
IsFullScreen = false;
RefreshRate = new Rational(60, 1); // by default
RenderTargetUsage = Usage.BackBuffer | Usage.RenderTargetOutput;
Flags = SwapChainFlags.None;
}
internal abstract void SetPresentationInterval(PresentInterval interval);
/// <summary>
/// Initializes a new instance of the <see cref="PresentParameters"/> struct.
/// </summary>
/// <param name="backBufferWidth">Width of the back buffer.</param>
/// <param name="backBufferHeight">Height of the back buffer.</param>
/// <param name="backBufferFormat">The back buffer format.</param>
/// <param name="backBufferCount">The back buffer count.</param>
/// <param name="multiSampleType">Type of the multi sample.</param>
/// <param name="multiSampleQuality">The multi sample quality.</param>
/// <param name="swapEffect">The swap effect.</param>
/// <param name="deviceWindowHandle">The device window handle.</param>
/// <param name="windowed">if set to <c>true</c> [windowed].</param>
/// <param name="enableAutoDepthStencil">if set to <c>true</c> [enable auto depth stencil].</param>
/// <param name="autoDepthStencilFormat">The auto depth stencil format.</param>
/// <param name="presentFlags">The present flags.</param>
/// <param name="fullScreenRefreshRateInHz">The full screen refresh rate in hz.</param>
/// <param name="presentationInterval">The presentation interval.</param>
public PresentParameters(int backBufferWidth, int backBufferHeight, Format backBufferFormat, int backBufferCount, MultisampleType multiSampleType, int multiSampleQuality, SwapEffect swapEffect, IntPtr deviceWindowHandle, bool windowed, bool enableAutoDepthStencil, Format autoDepthStencilFormat, PresentFlags presentFlags, int fullScreenRefreshRateInHz, PresentInterval presentationInterval)
{
BackBufferWidth = backBufferWidth;
BackBufferHeight = backBufferHeight;
BackBufferFormat = backBufferFormat;
BackBufferCount = backBufferCount;
MultiSampleType = multiSampleType;
MultiSampleQuality = multiSampleQuality;
SwapEffect = swapEffect;
DeviceWindowHandle = deviceWindowHandle;
Windowed = windowed;
EnableAutoDepthStencil = enableAutoDepthStencil;
AutoDepthStencilFormat = autoDepthStencilFormat;
PresentFlags = presentFlags;
FullScreenRefreshRateInHz = fullScreenRefreshRateInHz;
PresentationInterval = presentationInterval;
}
