61 lines
1.9 KiB
C#
61 lines
1.9 KiB
C#
using System.Collections.Generic;
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using SkiaSharp;
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namespace Jellyfin.Drawing.Skia
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{
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/// <summary>
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/// Class containing helper methods for working with SkiaSharp.
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/// </summary>
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public static class SkiaHelper
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{
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/// <summary>
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/// Ensures the result is a success
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/// by throwing an exception when that's not the case.
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/// </summary>
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/// <param name="result">The result returned by Skia.</param>
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public static void EnsureSuccess(SKCodecResult result)
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{
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if (result != SKCodecResult.Success)
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{
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throw new SkiaCodecException(result);
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}
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}
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/// <summary>
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/// Gets the next valid image as a bitmap.
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/// </summary>
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/// <param name="skiaEncoder">The current skia encoder.</param>
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/// <param name="paths">The list of image paths.</param>
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/// <param name="currentIndex">The current checked indes.</param>
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/// <param name="newIndex">The new index.</param>
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/// <returns>A valid bitmap, or null if no bitmap exists after <c>currentIndex</c>.</returns>
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public static SKBitmap? GetNextValidImage(SkiaEncoder skiaEncoder, IReadOnlyList<string> paths, int currentIndex, out int newIndex)
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{
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var imagesTested = new Dictionary<int, int>();
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SKBitmap? bitmap = null;
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while (imagesTested.Count < paths.Count)
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{
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if (currentIndex >= paths.Count)
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{
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currentIndex = 0;
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}
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bitmap = skiaEncoder.Decode(paths[currentIndex], false, null, out _);
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imagesTested[currentIndex] = 0;
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currentIndex++;
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if (bitmap != null)
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{
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break;
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}
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}
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newIndex = currentIndex;
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return bitmap;
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}
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}
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}
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