H. Utku Maden
a1f4e6a4dc
Due to unforseen naming conflicts, the project has been rebranded under the ReFuel umbrealla and will now be referred to as Dashboard from now on. Other changes will occur to suit the library more for the engine whilst keeping the freestanding nature of the library. Rename folder. Rename to Dashboard.OpenTK Rename to Dashboard.Media.Defaults. Do the last renames and path fixes.
83 lines
2.7 KiB
C#
83 lines
2.7 KiB
C#
using System;
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using System.Buffers;
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using System.IO;
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using ReFuel.FreeType;
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using Dashboard.Media.Color;
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using Dashboard.Media.Font;
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namespace Dashboard.Media.Defaults
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{
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public class QFontFreeType : QFont
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{
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private MemoryStream ms;
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private FTFace face;
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public override FontFace Face => throw new NotImplementedException();
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public QFontFreeType(Stream stream)
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{
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ms = new MemoryStream();
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stream.CopyTo(ms);
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FTError e = FT.NewMemoryFace(Ft, ms.GetBuffer(), ms.Length, 0, out face);
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if (e != FTError.None)
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{
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throw new Exception("Could not load font face from stream.");
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}
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}
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public override bool HasRune(int rune)
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{
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return FT.GetCharIndex(face, (ulong)rune) != 0;
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}
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protected override QImage Render(out QGlyphMetrics metrics, int codepoint, float size, in FontRasterizerOptions options)
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{
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FT.SetCharSize(face, 0, (long)Math.Round(64*size), 0, (uint)Math.Round(options.Resolution));
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uint index = FT.GetCharIndex(face, (ulong)codepoint);
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FT.LoadGlyph(face, index, FTLoadFlags.Default);
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ref readonly FTGlyphMetrics ftmetrics = ref face.Glyph.Metrics;
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metrics = new QGlyphMetrics(codepoint,
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new QVec2(ftmetrics.Width/64f, ftmetrics.Height/64f),
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new QVec2(ftmetrics.HorizontalBearingX/64f, ftmetrics.HorizontalBearingY/64f),
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new QVec2(ftmetrics.VerticalBearingX/64f, ftmetrics.VerticalBearingY/64f),
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new QVec2(ftmetrics.HorizontalAdvance/64f, ftmetrics.VerticalAdvance/64f)
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);
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FT.RenderGlyph(face.Glyph, options.Sdf ? FTRenderMode.Sdf : FTRenderMode.Normal);
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ref readonly FTBitmap bitmap = ref face.Glyph.Bitmap;
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if (bitmap.Width == 0 || bitmap.Pitch == 0 || bitmap.Buffer == IntPtr.Zero)
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{
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return null;
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}
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QImageBuffer image = new QImageBuffer(QImageFormat.AlphaU8, (int)bitmap.Width, (int)bitmap.Rows);
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image.LockBits2d(out QImageLock lk, QImageLockOptions.Default);
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unsafe
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{
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Buffer.MemoryCopy((void*)bitmap.Buffer, (void*)lk.ImagePtr, lk.Width * lk.Height, bitmap.Width * bitmap.Rows);
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}
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image.UnlockBits();
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return image;
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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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ms.Dispose();
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}
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FT.DoneFace(face);
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}
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private static FTLibrary Ft => FTProvider.Ft;
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}
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} |