SimdGcdrNet

using Sdcb.SimdGcdrNet;
using Sdcb.SimdGcdrNet.Models;

// Auto：macOS Apple Silicon 优先 Metal，否则 Vulkan，最后退回 CPU（默认值是 Cpu）
using GcdrEnhancer enh = GcdrEnhancer.FromBytes(GcdrModels.GcNet, GcdrModels.DrNet, GcdrBackend.Auto);
// 不用模型包时：GcdrEnhancer.FromFiles("gcdrnet_gcnet_sim.onnx", "gcdrnet_drnet_sim.onnx", ...)

byte[] dst = enh.Enhance(bgr, width: 1600, height: 1152);   // 紧密排列的 BGR24，HWC
// 带 stride、任意 8 位交错格式，输出与输入同格式（alpha 原样拷回），可原地写：
enh.Enhance(srcSpan, w, h, srcStride, dstSpan, dstStride, GcdrPixelFormat.Rgba32);

using SixLabors.ImageSharp;
using SixLabors.ImageSharp.Formats;
using SixLabors.ImageSharp.PixelFormats;
using System.Runtime.InteropServices;

// 克隆 Default：改 Configuration.Default 会丢掉解码器注册
Configuration cfg = Configuration.Default.Clone();
cfg.PreferContiguousImageBuffers = true;
using Image<Rgba32> image = Image.Load<Rgba32>(new DecoderOptions { Configuration = cfg }, "sample.jpg");
if (!image.DangerousTryGetSinglePixelMemory(out Memory<Rgba32> memory))
    throw new InvalidOperationException("pixel buffer is not contiguous");
Span<byte> pixels = MemoryMarshal.AsBytes(memory.Span);

// 原地增强：src 与 dst 是同一块内存
enh.Enhance(pixels, image.Width, image.Height, image.Width * 4, pixels, image.Width * 4, GcdrPixelFormat.Rgba32);

using SkiaSharp;

using SKBitmap bitmap = SKBitmap.Decode("sample.jpg").Copy(SKColorType.Bgra8888);
unsafe
{
    enh.Enhance(
        new ReadOnlySpan<byte>((byte*)bitmap.GetPixels(), bitmap.RowBytes * bitmap.Height),
        bitmap.Width, bitmap.Height, bitmap.RowBytes,
        new Span<byte>((byte*)bitmap.GetPixels(), bitmap.RowBytes * bitmap.Height),
        bitmap.RowBytes, GcdrPixelFormat.Bgra32);
}

using OpenCvSharp;

using Mat image = Cv2.ImRead("sample.jpg", ImreadModes.Color);
int stride = (int)image.Step();   // Mat 的 Step() 直接当 stride 传
unsafe
{
    enh.Enhance(
        new ReadOnlySpan<byte>((byte*)image.Data, stride * image.Height),
        image.Width, image.Height, stride,
        new Span<byte>((byte*)image.Data, stride * image.Height),
        stride, GcdrPixelFormat.Bgr24);
}

using System.Drawing;
using System.Drawing.Imaging;

using Bitmap bitmap = new("sample.jpg");
BitmapData data = bitmap.LockBits(new(0, 0, bitmap.Width, bitmap.Height),
    ImageLockMode.ReadWrite, PixelFormat.Format24bppRgb);
try
{
    unsafe
    {
        Span<byte> pixels = new((byte*)data.Scan0, data.Stride * bitmap.Height);
        enh.Enhance(pixels, data.Width, data.Height, data.Stride, pixels, data.Stride, GcdrPixelFormat.Bgr24);
    }
}
finally { bitmap.UnlockBits(data); }

using GcdrEnhancer enh = GcdrEnhancer.FromBytes(GcdrModels.GcNet, GcdrModels.DrNet, GcdrBackend.Auto);

// Auto：macOS Apple Silicon 上 Metal，有 Vulkan 计算设备则 Vulkan，否则 CPU；
// 也可显式写 GcdrBackend.Vulkan / Metal / Cpu。
// Vulkan：单命令缓冲图执行，融合流水线 bgr2nchw → GC → div6 → DR → nchw2bgr。