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Some minor cleanups and optimizations (#4174)

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* Replace Array.Clear(x, 0, x.Length) with Array.Clear(x)

* Use DateTime.UnixEpoch field

* Replace SHA256.ComputeHash calls with static SHA256.HashData call

More performant and avoids the need to initialize a SHA256 instance.
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Berkan Diler 2022-12-24 18:30:39 +01:00 • committed by GitHub
parent f906eb06c2
commit 37d27c4c99
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6 changed files with 19 additions and 33 deletions
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31
Ryujinx.HLE/HOS/Services/Caps/CaptureManager.cs
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@ -100,27 +100,24 @@ namespace Ryujinx.HLE.HOS.Services.Caps
Unknown0x1f = 1
};
using (SHA256 sha256Hash = SHA256.Create())
// NOTE: The hex hash is a HMAC-SHA256 (first 32 bytes) using a hardcoded secret key over the titleId, we can simulate it by hashing the titleId instead.
string hash = BitConverter.ToString(SHA256.HashData(BitConverter.GetBytes(titleId))).Replace("-", "").Remove(0x20);
string folderPath = Path.Combine(_sdCardPath, "Nintendo", "Album", currentDateTime.Year.ToString("00"), currentDateTime.Month.ToString("00"), currentDateTime.Day.ToString("00"));
string filePath = GenerateFilePath(folderPath, applicationAlbumEntry, currentDateTime, hash);
// TODO: Handle that using the FS service implementation and return the right error code instead of throwing exceptions.
Directory.CreateDirectory(folderPath);
while (File.Exists(filePath))
{
// NOTE: The hex hash is a HMAC-SHA256 (first 32 bytes) using a hardcoded secret key over the titleId, we can simulate it by hashing the titleId instead.
string hash = BitConverter.ToString(sha256Hash.ComputeHash(BitConverter.GetBytes(titleId))).Replace("-", "").Remove(0x20);
string folderPath = Path.Combine(_sdCardPath, "Nintendo", "Album", currentDateTime.Year.ToString("00"), currentDateTime.Month.ToString("00"), currentDateTime.Day.ToString("00"));
string filePath = GenerateFilePath(folderPath, applicationAlbumEntry, currentDateTime, hash);
applicationAlbumEntry.AlbumFileDateTime.UniqueId++;
// TODO: Handle that using the FS service implementation and return the right error code instead of throwing exceptions.
Directory.CreateDirectory(folderPath);
while (File.Exists(filePath))
{
applicationAlbumEntry.AlbumFileDateTime.UniqueId++;
filePath = GenerateFilePath(folderPath, applicationAlbumEntry, currentDateTime, hash);
}
// NOTE: The saved JPEG file doesn't have the limitation in the extra EXIF data.
Image.LoadPixelData<Rgba32>(screenshotData, 1280, 720).SaveAsJpegAsync(filePath);
filePath = GenerateFilePath(folderPath, applicationAlbumEntry, currentDateTime, hash);
}
// NOTE: The saved JPEG file doesn't have the limitation in the extra EXIF data.
Image.LoadPixelData<Rgba32>(screenshotData, 1280, 720).SaveAsJpegAsync(filePath);
return ResultCode.Success;
}