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Commit Description:
Add timers for Simulation and various engines...
Commit Description:
Add timers for Simulation and various engines
Starting to add additional timers for different stages of the process of
updating in order to get more insight into what is slowing it down.
The update takes 9ms, which is much longer than it used to.
Engine-specific timers are coming later.
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SpriteFontPlus/src/FontStashSharp/Font.cs
101 lines | 2.4 KiB | text/x-csharp | CSharpLexer
101 lines | 2.4 KiB | text/x-csharp | CSharpLexer
| r0 | using System; | |||
| using System.Runtime.InteropServices; | ||||
| using static StbTrueTypeSharp.StbTrueType; | ||||
| namespace FontStashSharp | ||||
| { | ||||
| internal unsafe class Font: IDisposable | ||||
| { | ||||
| private readonly byte[] Data; | ||||
| private GCHandle? dataPtr = null; | ||||
| private float AscentBase, DescentBase, LineHeightBase; | ||||
| public float Ascent { get; private set; } | ||||
| public float Descent { get; private set; } | ||||
| public float LineHeight { get; private set; } | ||||
| public float Scale { get; private set; } | ||||
| public stbtt_fontinfo _font = new stbtt_fontinfo(); | ||||
| public Font(byte[] data) | ||||
| { | ||||
| if (data == null) | ||||
| { | ||||
| throw new ArgumentNullException(nameof(data)); | ||||
| } | ||||
| Data = data; | ||||
| dataPtr = GCHandle.Alloc(data, GCHandleType.Pinned); | ||||
| } | ||||
| ~Font() | ||||
| { | ||||
| Dispose(); | ||||
| } | ||||
| public void Dispose() | ||||
| { | ||||
| if (dataPtr != null) | ||||
| { | ||||
| dataPtr.Value.Free(); | ||||
| dataPtr = null; | ||||
| } | ||||
| } | ||||
| public void Recalculate(float size) | ||||
| { | ||||
| Ascent = AscentBase * size; | ||||
| Descent = DescentBase * size; | ||||
| LineHeight = LineHeightBase * size; | ||||
| Scale = stbtt_ScaleForPixelHeight(_font, size); | ||||
| } | ||||
| public int GetGlyphIndex(int codepoint) | ||||
| { | ||||
| return stbtt_FindGlyphIndex(_font, codepoint); | ||||
| } | ||||
| public void BuildGlyphBitmap(int glyph, float size, float scale, ref int advance, ref int lsb, ref int x0, ref int y0, ref int x1, ref int y1) | ||||
| { | ||||
| int advanceTemp, lsbTemp; | ||||
| stbtt_GetGlyphHMetrics(_font, glyph, &advanceTemp, &lsbTemp); | ||||
| advance = advanceTemp; | ||||
| lsb = lsbTemp; | ||||
| int x0Temp, y0Temp, x1Temp, y1Temp; | ||||
| stbtt_GetGlyphBitmapBox(_font, glyph, scale, scale, &x0Temp, &y0Temp, &x1Temp, &y1Temp); | ||||
| x0 = x0Temp; | ||||
| y0 = y0Temp; | ||||
| x1 = x1Temp; | ||||
| y1 = y1Temp; | ||||
| } | ||||
| public void RenderGlyphBitmap(byte[] output, int outWidth, int outHeight, int outStride, int glyph) | ||||
| { | ||||
| fixed (byte* outputPtr = output) | ||||
| { | ||||
| stbtt_MakeGlyphBitmap(_font, outputPtr, outWidth, outHeight, outStride, Scale, Scale, glyph); | ||||
| } | ||||
| } | ||||
| public static Font FromMemory(byte[] data) | ||||
| { | ||||
| var font = new Font(data); | ||||
| byte* dataPtr = (byte *)font.dataPtr.Value.AddrOfPinnedObject(); | ||||
| if (stbtt_InitFont(font._font, dataPtr, 0) == 0) | ||||
| throw new Exception("stbtt_InitFont failed"); | ||||
| int ascent, descent, lineGap; | ||||
| stbtt_GetFontVMetrics(font._font , &ascent, &descent, &lineGap); | ||||
| var fh = ascent - descent; | ||||
| font.AscentBase = ascent / (float)fh; | ||||
| font.DescentBase = descent / (float)fh; | ||||
| font.LineHeightBase = (fh + lineGap) / (float)fh; | ||||
| return font; | ||||
| } | ||||
| } | ||||
| } | ||||
