李伟
34 lines
1.3 KiB
C#
34 lines
1.3 KiB
C#
using System.Windows.Media;
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using System.Windows.Media.Imaging;
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namespace XP.Camera;
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/// <summary>
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/// 提供像素数据到 WPF BitmapSource 的转换工具方法。
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/// </summary>
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public static class PixelConverter
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{
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/// <summary>
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/// 将原始像素数据转换为 WPF 的 BitmapSource 对象。
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/// 返回的 BitmapSource 已调用 Freeze()，可跨线程访问。
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/// </summary>
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public static BitmapSource ToBitmapSource(byte[] pixelData, int width, int height, string pixelFormat)
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{
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ArgumentNullException.ThrowIfNull(pixelData);
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if (width <= 0) throw new ArgumentException("Width must be a positive integer.", nameof(width));
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if (height <= 0) throw new ArgumentException("Height must be a positive integer.", nameof(height));
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ArgumentNullException.ThrowIfNull(pixelFormat);
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var (format, stride) = pixelFormat switch
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{
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"Mono8" => (PixelFormats.Gray8, width),
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"BGR8" => (PixelFormats.Bgr24, width * 3),
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"BGRA8" => (PixelFormats.Bgra32, width * 4),
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_ => throw new NotSupportedException($"Pixel format '{pixelFormat}' is not supported.")
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};
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var bitmap = BitmapSource.Create(width, height, 96, 96, format, null, pixelData, stride);
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bitmap.Freeze();
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return bitmap;
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}
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} |