tsai
/
ImageSharp
mirror of https://github.com/SixLabors/ImageSharp
1
0
Fork 0
Code Issues Projects Releases Wiki Activity
Browse Source

Cleanup

pull/2751/head
James Jackson-South 2 years ago
parent
4f6bd17120
commit
7103e28d90
3 changed files with 66 additions and 65 deletions
Whitespace
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Split View
Diff Options
Show Stats Download Patch File Download Diff File
  1. 100
      src/ImageSharp/Formats/Bmp/BmpMetadata.cs
  2. 16
      src/ImageSharp/Formats/Gif/GifMetadata.cs
  3. 15
      src/ImageSharp/Formats/Pbm/PbmMetadata.cs

100
src/ImageSharp/Formats/Bmp/BmpMetadata.cs
View File

@ -42,37 +42,25 @@ public class BmpMetadata : IFormatMetadata<BmpMetadata>, IFormatFrameMetadata<Bm
public static BmpMetadata FromFormatConnectingMetadata(FormatConnectingMetadata metadata)
{
int bpp = metadata.PixelTypeInfo.BitsPerPixel;
if (bpp == 1)
return bpp switch
{
return new BmpMetadata { BitsPerPixel = BmpBitsPerPixel.Pixel1 };
}
if (bpp == 2)
{
return new BmpMetadata { BitsPerPixel = BmpBitsPerPixel.Pixel2 };
}
if (bpp <= 4)
{
return new BmpMetadata { BitsPerPixel = BmpBitsPerPixel.Pixel4 };
}
if (bpp <= 8)
{
return new BmpMetadata { BitsPerPixel = BmpBitsPerPixel.Pixel8 };
}
if (bpp <= 16)
{
return new BmpMetadata { BitsPerPixel = BmpBitsPerPixel.Pixel16, InfoHeaderType = BmpInfoHeaderType.WinVersion3 };
}
if (bpp <= 24)
{
return new BmpMetadata { BitsPerPixel = BmpBitsPerPixel.Pixel24, InfoHeaderType = BmpInfoHeaderType.WinVersion4 };
}
return new BmpMetadata { BitsPerPixel = BmpBitsPerPixel.Pixel32, InfoHeaderType = BmpInfoHeaderType.WinVersion5 };
1 => new BmpMetadata { BitsPerPixel = BmpBitsPerPixel.Pixel1 },
2 => new BmpMetadata { BitsPerPixel = BmpBitsPerPixel.Pixel2 },
<= 4 => new BmpMetadata { BitsPerPixel = BmpBitsPerPixel.Pixel4 },
<= 8 => new BmpMetadata { BitsPerPixel = BmpBitsPerPixel.Pixel8 },
<= 16 => new BmpMetadata
{
BitsPerPixel = BmpBitsPerPixel.Pixel16, InfoHeaderType = BmpInfoHeaderType.WinVersion3
},
<= 24 => new BmpMetadata
{
BitsPerPixel = BmpBitsPerPixel.Pixel24, InfoHeaderType = BmpInfoHeaderType.WinVersion4
},
_ => new BmpMetadata
{
BitsPerPixel = BmpBitsPerPixel.Pixel32, InfoHeaderType = BmpInfoHeaderType.WinVersion5
}
};
}
/// <inheritdoc/>
@ -97,30 +85,42 @@ public class BmpMetadata : IFormatMetadata<BmpMetadata>, IFormatFrameMetadata<Bm
_ => bpp < 32 ? PixelAlphaRepresentation.None : PixelAlphaRepresentation.Unassociated
};
PixelComponentInfo info = this.BitsPerPixel switch
PixelComponentInfo info;
PixelColorType color;
switch (this.BitsPerPixel)
{
BmpBitsPerPixel.Pixel1 => PixelComponentInfo.Create(1, bpp, 1),
BmpBitsPerPixel.Pixel2 => PixelComponentInfo.Create(1, bpp, 2),
BmpBitsPerPixel.Pixel4 => PixelComponentInfo.Create(1, bpp, 4),
BmpBitsPerPixel.Pixel8 => PixelComponentInfo.Create(1, bpp, 8),
case BmpBitsPerPixel.Pixel1:
info = PixelComponentInfo.Create(1, bpp, 1);
color = PixelColorType.Indexed;
break;
case BmpBitsPerPixel.Pixel2:
info = PixelComponentInfo.Create(1, bpp, 2);
color = PixelColorType.Indexed;
break;
case BmpBitsPerPixel.Pixel4:
info = PixelComponentInfo.Create(1, bpp, 4);
color = PixelColorType.Indexed;
break;
case BmpBitsPerPixel.Pixel8:
info = PixelComponentInfo.Create(1, bpp, 8);
color = PixelColorType.Indexed;
break;
// Could be 555 with padding but 565 is more common in newer bitmaps and offers
// greater accuracy due to extra green precision.
BmpBitsPerPixel.Pixel16 => PixelComponentInfo.Create(3, bpp, 5, 6, 5),
BmpBitsPerPixel.Pixel24 => PixelComponentInfo.Create(3, bpp, 8, 8, 8),
BmpBitsPerPixel.Pixel32 or _ => PixelComponentInfo.Create(4, bpp, 8, 8, 8, 8),
};
PixelColorType color = this.BitsPerPixel switch
{
BmpBitsPerPixel.Pixel1 or
BmpBitsPerPixel.Pixel2 or
BmpBitsPerPixel.Pixel4 or
BmpBitsPerPixel.Pixel8 => PixelColorType.Indexed,
BmpBitsPerPixel.Pixel16 or
BmpBitsPerPixel.Pixel24 => PixelColorType.RGB,
BmpBitsPerPixel.Pixel32 or _ => PixelColorType.RGB | PixelColorType.Alpha,
};
case BmpBitsPerPixel.Pixel16:
info = PixelComponentInfo.Create(3, bpp, 5, 6, 5);
color = PixelColorType.RGB;
break;
case BmpBitsPerPixel.Pixel24:
info = PixelComponentInfo.Create(3, bpp, 8, 8, 8);
color = PixelColorType.RGB;
break;
case BmpBitsPerPixel.Pixel32 or _:
info = PixelComponentInfo.Create(4, bpp, 8, 8, 8, 8);
color = PixelColorType.RGB | PixelColorType.Alpha;
break;
}
return new()
{

16
src/ImageSharp/Formats/Gif/GifMetadata.cs
View File

@ -78,11 +78,13 @@ public class GifMetadata : IFormatMetadata<GifMetadata>
ReadOnlySpan<Color> colorTable = metadata.ColorTable.Value.Span;
for (int i = 0; i < colorTable.Length; i++)
{
if (background == colorTable[i])
if (background != colorTable[i])
{
index = i;
break;
continue;
}
index = i;
break;
}
}
@ -105,11 +107,13 @@ public class GifMetadata : IFormatMetadata<GifMetadata>
ReadOnlySpan<Color> colorTable = metadata.ColorTable.Value.Span;
for (int i = 0; i < colorTable.Length; i++)
{
if (background == colorTable[i])
if (background != colorTable[i])
{
index = i;
break;
continue;
}
index = i;
break;
}
}

15
src/ImageSharp/Formats/Pbm/PbmMetadata.cs
View File

@ -40,7 +40,7 @@ public class PbmMetadata : IFormatMetadata<PbmMetadata>
/// <summary>
/// Gets or sets the data type of the pixel components.
/// </summary>
public PbmComponentType ComponentType { get; set; } = PbmComponentType.Byte;
public PbmComponentType ComponentType { get; set; }
/// <inheritdoc/>
public static PbmMetadata FromFormatConnectingMetadata(FormatConnectingMetadata metadata)
@ -69,16 +69,13 @@ public class PbmMetadata : IFormatMetadata<PbmMetadata>
break;
}
PbmComponentType componentType = PbmComponentType.Short;
int bpp = metadata.PixelTypeInfo.BitsPerPixel;
if (bpp == 1)
PbmComponentType componentType = bpp switch
{
componentType = PbmComponentType.Bit;
}
else if (bpp <= 8)
{
componentType = PbmComponentType.Byte;
}
1 => PbmComponentType.Bit,
<= 8 => PbmComponentType.Byte,
_ => PbmComponentType.Short
};
return new PbmMetadata
{

Write Preview
Loading…
Cancel
Save