133 lines
3.0 KiB
C#
133 lines
3.0 KiB
C#
using Ghost.Graphics.Contracts;
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namespace Ghost.Graphics.RHI;
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/// <summary>
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/// Swap chain interface for presentation
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/// </summary>
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public interface ISwapChain : IDisposable
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{
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/// <summary>
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/// Width of the swap chain back buffers
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/// </summary>
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uint Width { get; }
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/// <summary>
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/// Height of the swap chain back buffers
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/// </summary>
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uint Height { get; }
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/// <summary>
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/// Number of back buffers
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/// </summary>
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uint BufferCount { get; }
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/// <summary>
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/// Gets the current back buffer texture
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/// </summary>
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/// <returns>Current back buffer texture</returns>
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ITexture GetCurrentBackBuffer();
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/// <summary>
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/// Presents the rendered frame
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/// </summary>
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/// <param name="vsync">Enable vertical synchronization</param>
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void Present(bool vsync = true);
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/// <summary>
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/// Resizes the swap chain back buffers
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/// </summary>
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/// <param name="width">New width</param>
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/// <param name="height">New height</param>
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void Resize(uint width, uint height);
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}
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/// <summary>
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/// Swap chain description
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/// </summary>
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public struct SwapChainDesc
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{
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/// <summary>
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/// Width of the swap chain
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/// </summary>
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public uint Width;
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/// <summary>
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/// Height of the swap chain
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/// </summary>
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public uint Height;
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/// <summary>
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/// Back buffer format
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/// </summary>
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public TextureFormat Format;
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/// <summary>
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/// Number of back buffers
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/// </summary>
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public uint BufferCount;
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/// <summary>
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/// Target for presentation (window handle or composition target)
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/// </summary>
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public SwapChainTarget Target;
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public SwapChainDesc(uint width, uint height, SwapChainTarget target, TextureFormat format = TextureFormat.B8G8R8A8_UNorm, uint bufferCount = 2)
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{
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Width = width;
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Height = height;
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Format = format;
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BufferCount = bufferCount;
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Target = target;
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}
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}
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/// <summary>
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/// Swap chain target (window handle or composition surface)
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/// </summary>
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public struct SwapChainTarget
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{
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/// <summary>
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/// Target type
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/// </summary>
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public SwapChainTargetType Type;
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/// <summary>
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/// Window handle for HWND targets
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/// </summary>
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public nint WindowHandle;
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/// <summary>
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/// Composition surface for UWP/WinUI targets
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/// </summary>
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public object? CompositionSurface;
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public static SwapChainTarget FromWindowHandle(nint hwnd)
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{
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return new SwapChainTarget
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{
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Type = SwapChainTargetType.WindowHandle,
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WindowHandle = hwnd,
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CompositionSurface = null
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};
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}
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public static SwapChainTarget FromCompositionSurface(object surface)
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{
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return new SwapChainTarget
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{
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Type = SwapChainTargetType.Composition,
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WindowHandle = nint.Zero,
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CompositionSurface = surface
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};
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}
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}
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/// <summary>
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/// Swap chain target types
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/// </summary>
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public enum SwapChainTargetType
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{
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WindowHandle,
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Composition
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} |