//internal FeaturesPerFormat(PixelFormat format, MultisampleCount maximumMultisampleCount, ComputeShaderFormatSupport computeShaderFormatSupport, FormatSupport formatSupport)
internal FeaturesPerFormat(PixelFormat format, MultisampleCount maximumMultisampleCount, FormatSupport formatSupport)
{
Format = format;
this.MultisampleCountMax = maximumMultisampleCount;
//ComputeShaderFormatSupport = computeShaderFormatSupport;
FormatSupport = formatSupport;
}
public RenderOutputDescription(PixelFormat renderTargetFormat, PixelFormat depthStencilFormat = PixelFormat.None, MultisampleCount multisampleCount = MultisampleCount.None) : this()
{
RenderTargetCount = renderTargetFormat != PixelFormat.None ? 1 : 0;
RenderTargetFormat0 = renderTargetFormat;
DepthStencilFormat = depthStencilFormat;
MultisampleCount = multisampleCount;
}
private void EnumerateMSAASupportPerFormat(GraphicsDevice deviceRoot)
{
// Query OpenGL for the highest supported multisample count:
int globalMaxMSAASamples;
GL.GetInteger(GL_MAX_SAMPLES, out globalMaxMSAASamples);
// Now select the highest engine-supported multisample mode: // TODO: Adjust comment.
MultisampleCount actualMultisampleCount = MultisampleCount.None;
// Technically we could just cast "globalMaxMSAASamples" to "actualMultisampleCount",
// but AFAIK nothing prevents an implementation from exposing things like 6x MSAA or some other uncommon mode.
if (globalMaxMSAASamples >= 8)
{
// If the maximum supported MSAA mode by the OpenGL implementation is higher than the maximum supported by the engine (8xMSAA), we clamp it.
actualMultisampleCount = MultisampleCount.X8;
}
else if (globalMaxMSAASamples >= 4)
{
// If the maximum supported MSAA mode by the OpenGL implementation is between 4 and 7 samples, we fall back to the next lowest engine-supported one (4x).
actualMultisampleCount = MultisampleCount.X4; // 4-7 x MSAA => 4 x MSAA (next lowest)
}
else if (globalMaxMSAASamples == 2)
{
// If the maximum supported MSAA mode by the OpenGL implementation is between 2 and 3 samples, we fall back to the next lowest engine-supported one (2x).
actualMultisampleCount = MultisampleCount.X2;
}
for (int i = 0; i < mapFeaturesPerFormat.Length; i++)
{
// TODO: This ignores the supported multisample capabilities of each render target format. But I don't know how to query this in OpenGL (assuming it's even possible at all).
mapFeaturesPerFormat[i] = new FeaturesPerFormat((PixelFormat)i, actualMultisampleCount, FormatSupport.None);
}
}
protected override void InitializeCore()
{
base.InitializeCore();
shadowMapRenderer = Context.RenderSystem.RenderFeatures
.OfType <MeshRenderFeature>().FirstOrDefault()?.RenderFeatures
.OfType <ForwardLightingRenderFeature>().FirstOrDefault()?.ShadowMapRenderer;
if (MSAALevel != MultisampleCount.None)
{
actualMultisampleCount = (MultisampleCount)Math.Min((int)MSAALevel, (int)GraphicsDevice.Features[PixelFormat.R16G16B16A16_Float].MultisampleCountMax);
actualMultisampleCount = (MultisampleCount)Math.Min((int)actualMultisampleCount, (int)GraphicsDevice.Features[DepthBufferFormat].MultisampleCountMax);
// TODO: We cannot support MSAA on DX10 now
// Direct3D has MSAA support starting from version 11 because it requires multisample depth buffers as shader resource views.
// Therefore we force-disable MSAA on any platform that doesn't support MSAA.
if (actualMultisampleCount != MSAALevel)
{
logger.Warning($"Multisample count of {(int) MSAALevel} samples is not supported. Falling back to highest supported sample count of {(int) actualMultisampleCount} samples.");
}
}
var camera = Context.GetCurrentCamera();
}
/// <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 = PixelFormat.D24_UNorm_S8_UInt;
MultisampleCount = MultisampleCount.None;
IsFullScreen = false;
RefreshRate = new Rational(60, 1); // by default
ColorSpace = ColorSpace.Linear;
}
/// <summary>
/// Sets default values for this instance.
/// </summary>
public void SetDefault()
{
CullMode = CullMode.Back;
FillMode = FillMode.Solid;
DepthClipEnable = true;
FrontFaceCounterClockwise = false;
ScissorTestEnable = false;
MultisampleCount = MultisampleCount.None;
MultisampleAntiAliasLine = false;
DepthBias = 0;
DepthBiasClamp = 0f;
SlopeScaleDepthBias = 0f;
}
/// <summary>
/// Creates a new 2D <see cref="Texture" />.
/// </summary>
/// <param name="device">The <see cref="GraphicsDevice"/>.</param>
/// <param name="width">The width.</param>
/// <param name="height">The height.</param>
/// <param name="format">Describes the format to use.</param>
/// <param name="mipCount">Number of mipmaps, set to true to have all mipmaps, set to an int >=1 for a particular mipmap count.</param>
/// <param name="textureData">Texture datas through an array of <see cref="DataBox"/> </param>
/// <param name="textureFlags">true if the texture needs to support unordered read write.</param>
/// <param name="arraySize">Size of the texture 2D array, default to 1.</param>
/// <param name="usage">The usage.</param>
/// <param name="multisampleCount">The multisample count.</param>
/// <returns>A new instance of 2D <see cref="Texture" /> class.</returns>
public static Texture New2D(
GraphicsDevice device,
int width,
int height,
MipMapCount mipCount,
PixelFormat format,
DataBox[] textureData,
TextureFlags textureFlags = TextureFlags.ShaderResource,
int arraySize = 1,
GraphicsResourceUsage usage = GraphicsResourceUsage.Default,
MultisampleCount multisampleCount = MultisampleCount.None)
{
return(new Texture(device).InitializeFrom(TextureDescription.New2D(width, height, mipCount, format, textureFlags, arraySize, usage, multisampleCount), textureData));
}
public void BeginCustomValidation(PixelFormat depthStencilFormat, MultisampleCount multisampleCount = MultisampleCount.None)
{
validatedTargetCount = 0;
hasChanged = false;
if (this.depthStencilFormat != depthStencilFormat)
{
hasChanged = true;
this.depthStencilFormat = depthStencilFormat;
}
if (this.multisampleCount != multisampleCount)
{
hasChanged = true;
this.multisampleCount = multisampleCount;
}
}
public unsafe void CaptureState(CommandList commandList)
{
DepthStencilFormat = commandList.DepthStencilBuffer != null ? commandList.DepthStencilBuffer.ViewFormat : PixelFormat.None;
MultisampleCount = commandList.DepthStencilBuffer != null ? commandList.DepthStencilBuffer.MultisampleCount : MultisampleCount.None;
RenderTargetCount = commandList.RenderTargetCount;
fixed(PixelFormat *renderTargetFormat0 = &RenderTargetFormat0)
{
var renderTargetFormat = renderTargetFormat0;
for (int i = 0; i < RenderTargetCount; ++i)
{
*renderTargetFormat++ = commandList.RenderTargets[i].ViewFormat;
MultisampleCount = commandList.RenderTargets[i].MultisampleCount; // multisample should all be equal
}
}
}
public void Validate(ref RenderOutputDescription renderOutput)
{
hasChanged = false;
if (multisampleCount != renderOutput.MultisampleCount)
{
hasChanged = true;
multisampleCount = renderOutput.MultisampleCount;
}
if (hasChanged)
{
// Recalculate shader sources
ShaderSource = new ShaderMixinSource();
ShaderSource.Macros.Add(new ShaderMacro("XENKO_MULTISAMPLE_COUNT", (int)multisampleCount));
}
renderStage.Output = renderOutput;
}
private static TextureDescription New2D(int width, int height, PixelFormat format, TextureFlags textureFlags, int mipCount, int arraySize, GraphicsResourceUsage usage, MultisampleCount multisampleCount, TextureOptions textureOptions = TextureOptions.None)
{
if ((textureFlags & TextureFlags.UnorderedAccess) != 0)
{
usage = GraphicsResourceUsage.Default;
}
var desc = new TextureDescription
{
Dimension = TextureDimension.Texture2D,
Width = width,
Height = height,
Depth = 1,
ArraySize = arraySize,
MultisampleCount = multisampleCount,
Flags = textureFlags,
Format = format,
MipLevels = Texture.CalculateMipMapCount(mipCount, width, height),
Usage = Texture.GetUsageWithFlags(usage, textureFlags),
Options = textureOptions
};
return(desc);
}
/// <summary>
/// Creates a new <see cref="TextureDescription" />.
/// </summary>
/// <param name="width">The width.</param>
/// <param name="height">The height.</param>
/// <param name="mipCount">Number of mipmaps, set to true to have all mipmaps, set to an int >=1 for a particular mipmap count.</param>
/// <param name="format">Describes the format to use.</param>
/// <param name="textureFlags">true if the texture needs to support unordered read write.</param>
/// <param name="arraySize">Size of the texture 2D array, default to 1.</param>
/// <param name="usage">The usage.</param>
/// <param name="multisampleCount">The multisample count.</param>
/// <returns>A new instance of <see cref="TextureDescription" /> class.</returns>
public static TextureDescription New2D(int width, int height, MipMapCount mipCount, PixelFormat format, TextureFlags textureFlags = TextureFlags.ShaderResource, int arraySize = 1, GraphicsResourceUsage usage = GraphicsResourceUsage.Default, MultisampleCount multisampleCount = MultisampleCount.None, TextureOptions textureOptions = TextureOptions.None)
{
return(New2D(width, height, format, textureFlags, mipCount, arraySize, usage, multisampleCount, textureOptions));
}
public static bool DisposeTextureBySpecs(Texture tex, Vector3 dim, PixelFormat pixelFormat, MultisampleCount samples)
{
if (tex is null ||
!TextureDimensionsEqual(tex, dim) ||
tex.Format != pixelFormat ||
tex.MultisampleCount != samples)
{
if (tex != null)
{
tex.Dispose();
}
return(true);
}
return(false);
}
protected override void InitializeCore()
{
base.InitializeCore();
shadowMapRenderer = Context.RenderSystem.RenderFeatures.OfType <MeshRenderFeature>().FirstOrDefault()?.RenderFeatures.OfType <ForwardLightingRenderFeature>().FirstOrDefault()?.ShadowMapRenderer;
if (MSAALevel != MultisampleCount.None)
{
actualMultisampleCount = (MultisampleCount)Math.Min((int)MSAALevel, (int)GraphicsDevice.Features[PixelFormat.R16G16B16A16_Float].MultisampleCountMax);
actualMultisampleCount = (MultisampleCount)Math.Min((int)actualMultisampleCount, (int)GraphicsDevice.Features[DepthBufferFormat].MultisampleCountMax);
// Note: we cannot support MSAA on DX10 now
if (GraphicsDevice.Features.HasMultisampleDepthAsSRV == false)
{
actualMultisampleCount = MultisampleCount.None;
}
}
var camera = Context.GetCurrentCamera();
vrSystem = Services.GetService <VRDeviceSystem>();
if (vrSystem != null)
{
if (VRSettings.Enabled)
{
var requiredDescs = VRSettings.RequiredApis.ToArray();
vrSystem.PreferredApis = requiredDescs.Select(x => x.Api).Distinct().ToArray();
// remove VR API duplicates and keep first desired config only
var preferredScalings = new Dictionary <VRApi, float>();
foreach (var desc in requiredDescs)
{
if (!preferredScalings.ContainsKey(desc.Api))
{
preferredScalings[desc.Api] = desc.ResolutionScale;
}
}
vrSystem.PreferredScalings = preferredScalings;
vrSystem.RequireMirror = VRSettings.CopyMirror;
vrSystem.MirrorWidth = GraphicsDevice.Presenter.BackBuffer.Width;
vrSystem.MirrorHeight = GraphicsDevice.Presenter.BackBuffer.Height;
vrSystem.Enabled = true; //careful this will trigger the whole chain of initialization!
vrSystem.Visible = true;
VRSettings.VRDevice = vrSystem.Device;
vrSystem.PreviousUseCustomProjectionMatrix = camera.UseCustomProjectionMatrix;
vrSystem.PreviousUseCustomViewMatrix = camera.UseCustomViewMatrix;
vrSystem.PreviousCameraProjection = camera.ProjectionMatrix;
if (VRSettings.VRDevice.SupportsOverlays)
{
foreach (var overlay in VRSettings.Overlays)
{
if (overlay != null && overlay.Texture != null)
{
overlay.Overlay = VRSettings.VRDevice.CreateOverlay(overlay.Texture.Width, overlay.Texture.Height, overlay.Texture.MipLevels, (int)overlay.Texture.MultisampleCount);
}
}
}
}
else
{
vrSystem.Enabled = false;
vrSystem.Visible = false;
VRSettings.VRDevice = null;
if (vrSystem.Device != null) //we had a device before so we know we need to restore the camera
{
camera.UseCustomViewMatrix = vrSystem.PreviousUseCustomViewMatrix;
camera.UseCustomProjectionMatrix = vrSystem.PreviousUseCustomProjectionMatrix;
camera.ProjectionMatrix = vrSystem.PreviousCameraProjection;
}
}
}
}
protected override void InitializeCore()
{
base.InitializeCore();
shadowMapRenderer = Context.RenderSystem.RenderFeatures.OfType <MeshRenderFeature>().FirstOrDefault()?.RenderFeatures.OfType <ForwardLightingRenderFeature>().FirstOrDefault()?.ShadowMapRenderer;
if (MSAALevel != MultisampleCount.None)
{
actualMultisampleCount = (MultisampleCount)Math.Min((int)MSAALevel, (int)GraphicsDevice.Features[PixelFormat.R16G16B16A16_Float].MultisampleCountMax);
actualMultisampleCount = (MultisampleCount)Math.Min((int)actualMultisampleCount, (int)GraphicsDevice.Features[DepthBufferFormat].MultisampleCountMax);
// Note: we cannot support MSAA on DX10 now
if (GraphicsDevice.Features.HasMultisampleDepthAsSRV == false && // TODO: Try enabling MSAA on DX9!
GraphicsDevice.Platform != GraphicsPlatform.OpenGL &&
GraphicsDevice.Platform != GraphicsPlatform.OpenGLES)
{
// OpenGL has MSAA support on every version.
// OpenGL ES has MSAA support starting from version 3.0.
// Direct3D has MSAA support starting from version 11 because it requires multisample depth buffers as shader resource views.
// Therefore we force-disable MSAA on any platform that doesn't support MSAA.
actualMultisampleCount = MultisampleCount.None;
}
if (actualMultisampleCount != MSAALevel)
{
logger.Warning("Multisample count of " + (int)MSAALevel + " samples not supported. Falling back to highest supported sample count of " + (int)actualMultisampleCount + " samples.");
}
#if XENKO_PLATFORM_IOS
// MSAA is not supported on iOS currently because OpenTK doesn't expose "GL.BlitFramebuffer()" on iOS for some reason.
actualMultisampleCount = MultisampleCount.None;
#endif
}
var camera = Context.GetCurrentCamera();
vrSystem = Services.GetService <VRDeviceSystem>();
if (vrSystem != null)
{
if (VRSettings.Enabled)
{
var requiredDescs = VRSettings.RequiredApis.ToArray();
vrSystem.PreferredApis = requiredDescs.Select(x => x.Api).Distinct().ToArray();
// remove VR API duplicates and keep first desired config only
var preferredScalings = new Dictionary <VRApi, float>();
foreach (var desc in requiredDescs)
{
if (!preferredScalings.ContainsKey(desc.Api))
{
preferredScalings[desc.Api] = desc.ResolutionScale;
}
}
vrSystem.PreferredScalings = preferredScalings;
vrSystem.RequireMirror = VRSettings.CopyMirror;
vrSystem.MirrorWidth = GraphicsDevice.Presenter.BackBuffer.Width;
vrSystem.MirrorHeight = GraphicsDevice.Presenter.BackBuffer.Height;
vrSystem.Enabled = true; //careful this will trigger the whole chain of initialization!
vrSystem.Visible = true;
VRSettings.VRDevice = vrSystem.Device;
vrSystem.PreviousUseCustomProjectionMatrix = camera.UseCustomProjectionMatrix;
vrSystem.PreviousUseCustomViewMatrix = camera.UseCustomViewMatrix;
vrSystem.PreviousCameraProjection = camera.ProjectionMatrix;
if (VRSettings.VRDevice.SupportsOverlays)
{
foreach (var overlay in VRSettings.Overlays)
{
if (overlay != null && overlay.Texture != null)
{
overlay.Overlay = VRSettings.VRDevice.CreateOverlay(overlay.Texture.Width, overlay.Texture.Height, overlay.Texture.MipLevels, (int)overlay.Texture.MultisampleCount);
}
}
}
}
else
{
vrSystem.Enabled = false;
vrSystem.Visible = false;
VRSettings.VRDevice = null;
if (vrSystem.Device != null) //we had a device before so we know we need to restore the camera
{
camera.UseCustomViewMatrix = vrSystem.PreviousUseCustomViewMatrix;
camera.UseCustomProjectionMatrix = vrSystem.PreviousUseCustomProjectionMatrix;
camera.ProjectionMatrix = vrSystem.PreviousCameraProjection;
}
}
}
}
private bool NeedToRecreateTexture(Xenko.Graphics.Texture tex, Vector3 dim, Xenko.Graphics.PixelFormat pixelFormat, MultisampleCount samples)
{
if (tex == null || !TextureDimensionsEqual(tex, dim) || tex.Format != pixelFormat || tex.MultisampleCount != samples)
{
if (tex != null)
{
tex.Dispose();
}
return(true);
}
return(false);
}