Begin work on Quik.Media.Stb
This commit is contained in:
parent
648f44f12d
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37
Quik.Media.Stb/QFontStbtt.cs
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37
Quik.Media.Stb/QFontStbtt.cs
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using System;
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using System.IO;
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using static StbTrueTypeSharp.StbTrueType;
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using Quik.Media.Color;
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namespace Quik.Media.Stb
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{
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public class QFontStbtt : QFont
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{
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public override FontInfo Info => throw new NotImplementedException();
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public QFontStbtt(Stream source)
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{
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}
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public override QGlyphMetrics[] GetMetricsForPage(int codepage)
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{
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throw new NotImplementedException();
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}
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public override QGlyphMetrics GetMetricsForRune(int rune)
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{
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throw new NotImplementedException();
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}
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public override bool HasRune(int rune)
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{
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throw new NotImplementedException();
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}
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public override QImage RenderPage(int codepage, float resolution, bool sdf)
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{
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throw new NotImplementedException();
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}
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}
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}
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93
Quik.Media.Stb/QImageStbi.cs
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93
Quik.Media.Stb/QImageStbi.cs
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using System;
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using System.IO;
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using System.Runtime.InteropServices;
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using Quik.Media;
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using Quik.Media.Color;
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using Quik.Stb;
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namespace Quik.Media.Stb
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{
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public unsafe class QImageStbi : QImage
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{
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private readonly StbImage image;
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private ImageBuffer buffer;
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public override int Width => image.Width;
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public override int Height => image.Height;
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public override int Depth => 1;
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public override QImageFormat InternalFormat => Stb2QImageFormat(image.Format);
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public QImageStbi(Stream source)
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{
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// According to the stbi documentation, only a specific type of PNG
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// files are premultiplied out of the box (iPhone PNG). Take the
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// precision loss L and move on.
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StbImage.FlipVerticallyOnLoad = true;
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StbImage.UnpremultiplyOnLoad = true;
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image = StbImage.Load(source);
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}
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public static QImageFormat Stb2QImageFormat(StbiImageFormat src)
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{
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switch (src)
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{
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case StbiImageFormat.Grey: return QImageFormat.RedU8;
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case StbiImageFormat.Rgb: return QImageFormat.RgbU8;
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case StbiImageFormat.Rgba: return QImageFormat.RgbaU8;
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case StbiImageFormat.GreyAlpha: return QImageFormat.RaU8;
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default: return QImageFormat.Undefined;
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}
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}
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public override void LockBits2d(out QImageLock imageLock, QImageLockOptions options)
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{
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if (options.MipLevel > 0) throw new Exception("This image has no mip levels.");
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buffer?.Dispose();
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buffer = new ImageBuffer(options.Format, Width, Height);
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QImageLock dst = buffer.Lock();
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byte *srcPtr = (byte*)image.ImagePointer;
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QImageLock src = new QImageLock(InternalFormat, Width, Height, 1, (IntPtr)srcPtr);
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FormatConvert.Convert(dst, src);
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if (options.Premultiply)
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{
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FormatConvert.Premultiply(dst);
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}
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imageLock = dst;
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}
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public override void LockBits3d(out QImageLock imageLock, QImageLockOptions options)
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{
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LockBits2d(out imageLock, options);
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}
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public override void LockBits3d(out QImageLock imageLock, QImageLockOptions options, int depth)
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{
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if (depth != 1) throw new ArgumentOutOfRangeException(nameof(depth));
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LockBits2d(out imageLock, options);
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}
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public override void UnlockBits()
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{
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buffer.Unlock();
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}
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protected override void Dispose(bool disposing)
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{
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base.Dispose(disposing);
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if (disposing)
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{
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buffer?.Dispose();
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image.Dispose();
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}
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}
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}
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}
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21
Quik.Media.Stb/Quik.Media.Stb.csproj
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21
Quik.Media.Stb/Quik.Media.Stb.csproj
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<Project Sdk="Microsoft.NET.Sdk">
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<PropertyGroup>
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<TargetFramework>net6.0</TargetFramework>
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<LanguageVersion>7.3</LanguageVersion>
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<Nullable>disable</Nullable>
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<AllowUnsafeBlocks>True</AllowUnsafeBlocks>
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</PropertyGroup>
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<ItemGroup>
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<PackageReference Include="StbImageSharp" Version="2.27.13" />
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<PackageReference Include="StbTrueTypeSharp" Version="1.26.11" />
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</ItemGroup>
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<ItemGroup>
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<ProjectReference Include="..\Quik\Quik.csproj" />
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<ProjectReference Include="..\Quik.StbImage\Quik.StbImage.csproj" />
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<ProjectReference Include="..\Quik.StbTrueType\Quik.StbTrueType.csproj" />
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</ItemGroup>
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</Project>
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152
Quik.Media.Stb/StbMediaLoader.cs
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152
Quik.Media.Stb/StbMediaLoader.cs
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using System;
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using System.Buffers;
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using System.Collections;
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using System.IO;
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using System.Linq;
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using System.Net;
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using Quik.Media;
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namespace Quik.Media.Stb
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{
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public class StbMediaLoader : MediaLoader<string>, MediaLoader<Uri>, MediaLoader<FileInfo>, MediaLoader<FontInfo>
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{
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public bool AllowRemoteTransfers { get; set; } = false;
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private readonly ArrayPool<byte> ByteArrays = ArrayPool<byte>.Create();
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public IDisposable GetMedia(object key, MediaHint hint)
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{
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Type t = key.GetType();
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/**/ if (t == typeof(string))
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{
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return GetMedia((string)key, hint);
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}
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else if (t == typeof(Uri))
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{
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return GetMedia((Uri)key, hint);
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}
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else if (t == typeof(FileInfo))
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{
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return GetMedia((FileInfo)key, hint);
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}
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else if (t == typeof(FontInfo))
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{
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return GetMedia((FontInfo)key, hint);
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}
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else
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{
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return null;
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}
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}
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public IDisposable GetMedia(Uri uri, MediaHint hint)
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{
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throw new NotImplementedException();
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}
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public IDisposable GetMedia(string str, MediaHint hint)
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{
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throw new NotImplementedException();
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}
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public IDisposable GetMedia(FileInfo file, MediaHint hint)
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{
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throw new NotImplementedException();
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}
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public IDisposable GetMedia(FontInfo key, MediaHint hint)
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{
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throw new NotImplementedException();
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}
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public Stream OpenResource(FileInfo file)
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{
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if (file.Exists)
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{
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return file.Open(FileMode.Open);
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}
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else
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{
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return null;
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}
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}
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public Stream OpenResource(Uri uri)
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{
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switch (uri.Scheme)
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{
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case "http":
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case "https":
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if (!AllowRemoteTransfers) return null;
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try
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{
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WebRequest request = HttpWebRequest.Create(uri);
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WebResponse response = request.GetResponse();
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MemoryStream stream = new MemoryStream();
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response.GetResponseStream().CopyTo(stream);
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response.Close();
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stream.Position = 0;
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return stream;
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}
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catch
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{
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return null;
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}
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case "file":
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return OpenResource(new FileInfo(uri.AbsolutePath));
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default:
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return null;
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}
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}
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public Stream OpenResource(string key)
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{
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if (File.Exists(key))
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{
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return File.Open(key, FileMode.Open);
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}
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else if (Uri.TryCreate(key, UriKind.RelativeOrAbsolute, out Uri uri))
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{
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return OpenResource(uri);
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}
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else
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{
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return null;
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}
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}
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MediaHint InferMedia(Stream str, MediaHint hint)
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{
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if (hint != MediaHint.None)
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{
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return hint;
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}
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byte[] array = ByteArrays.Rent(4);
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str.Read(array, 0, 4);
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str.Position = 0;
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foreach (var(type, seq) in MediaTypes)
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{
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if (seq.SequenceEqual(array))
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return hint;
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}
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return MediaHint.None;
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}
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private readonly (MediaHint, byte[])[] MediaTypes = new (MediaHint, byte[])[] {
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(MediaHint.Image, new byte[] { 0x42, 0x4d }), /* .bmp `BM` */
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(MediaHint.Image, new byte[] { 0x47, 0x49, 0x46, 0x38 }), /* .gif `GIF8` */
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(MediaHint.Image, new byte[] { 0xff, 0xd8, 0xff, 0xe0 }), /* .jpg (JFIF) */
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(MediaHint.Image, new byte[] { 0xff, 0xd8, 0xff, 0xe1 }), /* .jpg (EXIF) */
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(MediaHint.Image, new byte[] { 0x89, 0x50, 0x4e, 0x47 }), /* .png `.PNG `*/
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(MediaHint.Image, new byte[] { 0x4d, 0x4d, 0x00, 0x2a }), /* .tif (motorola) */
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(MediaHint.Image, new byte[] { 0x49, 0x49, 0x2a, 0x00 }), /* .tif (intel) */
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(MediaHint.Font, new byte[] { 0x00, 0x01, 0x00, 0x00 }), /* .ttf */
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(MediaHint.Font, new byte[] { 0x4F, 0x54, 0x54, 0x4F }), /* .otf */
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};
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}
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}
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@ -118,9 +118,9 @@ namespace Quik.Stb
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/// <param name="stream">The stream to load from.</param>
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/// <param name="format">The desired image format.</param>
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/// <returns>The image object.</returns>
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public static StbImage Load(Stream stream, StbiImageFormat format = StbiImageFormat.Default)
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public static StbImage Load(Stream stream, StbiImageFormat format = StbiImageFormat.Default, bool isFloat = false)
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{
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if (TryLoad(out StbImage image, stream, format))
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if (TryLoad(out StbImage image, stream, format, isFloat))
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{
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return image;
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}
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@ -128,5 +128,17 @@ namespace Quik.Stb
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string reason = Marshal.PtrToStringUTF8((IntPtr)Stbi.failure_reason());
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throw new Exception($"Failed to load image: {reason}");
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}
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public bool IsLoadable(Stream stream)
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{
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int x, y, iFormat;
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StbiStreamWrapper wrapper = new StbiStreamWrapper(stream, true);
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wrapper.CreateCallbacks(out stbi_io_callbacks cb);
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stream.Position = 0;
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int result = Stbi.info_from_callbacks(&cb, null, &x, &y, &iFormat);
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return result != 0;
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}
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}
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}
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14
Quik.sln
14
Quik.sln
@ -13,6 +13,8 @@ Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "tests", "tests", "{5E87AF9C
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EndProject
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Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Quik.StbImage.Tests", "tests\Quik.StbImage.Tests\Quik.StbImage.Tests.csproj", "{AFF181CF-D51E-4E16-B3C6-38ED1E1FF615}"
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EndProject
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Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Quik.Media.Stb", "Quik.Media.Stb\Quik.Media.Stb.csproj", "{3D354BE0-42A7-45C4-AAEA-B0F8963A5745}"
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EndProject
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Global
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GlobalSection(SolutionConfigurationPlatforms) = preSolution
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Debug|Any CPU = Debug|Any CPU
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@ -83,6 +85,18 @@ Global
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{AFF181CF-D51E-4E16-B3C6-38ED1E1FF615}.Release|x64.Build.0 = Release|Any CPU
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{AFF181CF-D51E-4E16-B3C6-38ED1E1FF615}.Release|x86.ActiveCfg = Release|Any CPU
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{AFF181CF-D51E-4E16-B3C6-38ED1E1FF615}.Release|x86.Build.0 = Release|Any CPU
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{3D354BE0-42A7-45C4-AAEA-B0F8963A5745}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
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{3D354BE0-42A7-45C4-AAEA-B0F8963A5745}.Debug|Any CPU.Build.0 = Debug|Any CPU
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{3D354BE0-42A7-45C4-AAEA-B0F8963A5745}.Debug|x64.ActiveCfg = Debug|Any CPU
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{3D354BE0-42A7-45C4-AAEA-B0F8963A5745}.Debug|x64.Build.0 = Debug|Any CPU
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{3D354BE0-42A7-45C4-AAEA-B0F8963A5745}.Debug|x86.ActiveCfg = Debug|Any CPU
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{3D354BE0-42A7-45C4-AAEA-B0F8963A5745}.Debug|x86.Build.0 = Debug|Any CPU
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{3D354BE0-42A7-45C4-AAEA-B0F8963A5745}.Release|Any CPU.ActiveCfg = Release|Any CPU
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{3D354BE0-42A7-45C4-AAEA-B0F8963A5745}.Release|Any CPU.Build.0 = Release|Any CPU
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{3D354BE0-42A7-45C4-AAEA-B0F8963A5745}.Release|x64.ActiveCfg = Release|Any CPU
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{3D354BE0-42A7-45C4-AAEA-B0F8963A5745}.Release|x64.Build.0 = Release|Any CPU
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{3D354BE0-42A7-45C4-AAEA-B0F8963A5745}.Release|x86.ActiveCfg = Release|Any CPU
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{3D354BE0-42A7-45C4-AAEA-B0F8963A5745}.Release|x86.Build.0 = Release|Any CPU
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EndGlobalSection
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GlobalSection(NestedProjects) = preSolution
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{AFF181CF-D51E-4E16-B3C6-38ED1E1FF615} = {5E87AF9C-AC12-4E48-99B1-CBEC0C97B624}
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@ -12,8 +12,8 @@ namespace Quik.StbImage.Tests
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[TestMethod("Set Global Options")]
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public void SetGlobals()
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{
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Stbi.set_flip_vertically_on_load(1);
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Stbi.set_unpremultiply_on_load(1);
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Quik.Stb.StbImage.FlipVerticallyOnLoad = true;
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Quik.Stb.StbImage.UnpremultiplyOnLoad = true;
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}
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private StbiStreamWrapper PrepareImage(string path, out stbi_io_callbacks cb)
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