public void SameColorSpaceCreatedDifferentWaysAreTheSameObject()
{
var colorspace1 = SKColorSpace.CreateSrgbLinear();
Assert.Equal("SkiaSharp.SKColorSpace+SKColorSpaceStatic", colorspace1.GetType().FullName);
Assert.Equal(2, colorspace1.GetReferenceCount());
var colorspace2 = SKColorSpace.CreateRgb(SKNamedGamma.Linear, SKColorSpaceGamut.Srgb);
Assert.Equal("SkiaSharp.SKColorSpace+SKColorSpaceStatic", colorspace2.GetType().FullName);
Assert.Equal(2, colorspace2.GetReferenceCount());
Assert.Same(colorspace1, colorspace2);
var colorspace3 = SKColorSpace.CreateRgb(
new SKColorSpaceTransferFn {
A = 0.6f, B = 0.5f, C = 0.4f, D = 0.3f, E = 0.2f, F = 0.1f
},
SKMatrix44.CreateIdentity());
Assert.NotSame(colorspace1, colorspace3);
colorspace3.Dispose();
Assert.True(colorspace3.IsDisposed);
Assert.Equal(2, colorspace1.GetReferenceCount());
colorspace2.Dispose();
Assert.False(colorspace2.IsDisposed);
Assert.Equal(2, colorspace1.GetReferenceCount());
colorspace1.Dispose();
Assert.False(colorspace1.IsDisposed);
Assert.Equal(2, colorspace1.GetReferenceCount());
}
public MainViewModel()
{
var color = SKImageInfo.PlatformColorType;
var colorString = color == SKColorType.Bgra8888 ? "BGRA" : "RGBA";
ColorCombinations = new ColorCombination[]
{
new ColorCombination(colorString, color, null),
new ColorCombination($"{colorString} (sRGB)", color, SKColorSpace.CreateSrgb()),
new ColorCombination("F16 (sRGB Linear)", SKColorType.RgbaF16, SKColorSpace.CreateSrgbLinear()),
};
CompilationMessages = new ObservableRangeCollection <CompilationMessage>();
var skiaAss = typeof(SKSurface).Assembly;
if (skiaAss.GetCustomAttribute(typeof(AssemblyInformationalVersionAttribute)) is AssemblyInformationalVersionAttribute informational)
{
SkiaSharpVersion = informational.InformationalVersion;
}
else if (skiaAss.GetCustomAttribute(typeof(AssemblyFileVersionAttribute)) is AssemblyFileVersionAttribute fileVersion)
{
SkiaSharpVersion = fileVersion.Version;
}
else if (skiaAss.GetCustomAttribute(typeof(AssemblyVersionAttribute)) is AssemblyVersionAttribute version)
{
SkiaSharpVersion = version.Version;
}
else
{
SkiaSharpVersion = "<unknown>";
}
}
public void LinearSrgbColorSpaceIsCorrect()
{
var colorspace = SKColorSpace.CreateSrgbLinear();
Assert.False(colorspace.IsSrgb);
Assert.False(colorspace.GammaIsCloseToSrgb);
Assert.True(colorspace.GammaIsLinear);
Assert.Equal(SKColorSpaceTransferFn.Linear, colorspace.GetNumericalTransferFunction());
Assert.Equal(SKColorSpaceXyz.Srgb, colorspace.ToColorSpaceXyz());
}
public void MakeSureColorsWithColorSpacesWork()
{
var color = new SKColorF(0.3f, 0, 0, 0.6f);
var paint = new SKPaint();
paint.SetColor(color, SKColorSpace.CreateSrgbLinear());
Assert.NotEqual(color, paint.ColorF);
}
public MainViewModel()
{
var color = SKImageInfo.PlatformColorType;
var colorString = color == SKColorType.Bgra8888 ? "BGRA" : "RGBA";
ColorCombinations = new ColorCombination[]
{
new ColorCombination(colorString, color, null),
new ColorCombination($"{colorString} (sRGB)", color, SKColorSpace.CreateSrgb()),
new ColorCombination("F16 (sRGB Linear)", SKColorType.RgbaF16, SKColorSpace.CreateSrgbLinear()),
};
CompilationMessages = new ObservableRangeCollection <CompilationMessage>();
}
public SKBitmap ImageBufferToSKBitmap(IImageBuffer imageBuffer)
{
if (imageBuffer == null)
{
return(null);
}
imageBuffer = imageBuffer.ToU8();
SKBitmap bitmap = null;
SKColorSpace colorSpace = null;
if (imageBuffer.Format.ColorSpace == ColorSpace.Srgb)
{
colorSpace = SKColorSpace.CreateSrgb();
}
else if (imageBuffer.Format.ColorSpace == ColorSpace.LinearRgb)
{
colorSpace = SKColorSpace.CreateSrgbLinear();
}
try
{
// for RGBA-images
if (imageBuffer.Format.PixelType == PixelType.U8C3)
{
// convert to 32bpp
var src = imageBuffer is I <byte>?((I <byte>)imageBuffer).Data.Buffer : imageBuffer.ToByteArray();
var dst = new byte[imageBuffer.Height * imageBuffer.Width * 4];
int i = 0, j = 0;
while (i < dst.Length)
{
dst[i + 0] = src[j + 0];
dst[i + 1] = src[j + 1];
dst[i + 2] = src[j + 2];
dst[i + 3] = 0xff;
i += 4;
j += 3;
}
SKColorType colorType = SKColorType.Rgba8888;
switch (imageBuffer.Format.PixelChannels)
{
case PixelChannels.Rgb:
colorType = SKColorType.Rgba8888;
break;
case PixelChannels.Bgra:
colorType = SKColorType.Bgra8888;
break;
}
using (var pinnedImage = new Utilities.PinnedGCHandle(dst))
{
var sourceInfo = new SKImageInfo(imageBuffer.Width, imageBuffer.Height, colorType, SKAlphaType.Opaque);
if (colorSpace != null)
{
sourceInfo.ColorSpace = colorSpace;
}
bitmap = new SKBitmap();
Debug.Assert(sourceInfo.RowBytes == imageBuffer.Width * 4);
if (!bitmap.InstallPixels(sourceInfo, pinnedImage.Pointer))
{
throw new Exception("InstallPixels poperation of Skia bitmap failed.");
}
}
}
// for RGBA-images
else if (imageBuffer.Format.PixelType == PixelType.U8C4)
{
// try direct copy
using (var pinnedImage = imageBuffer.Pin())
{
SKAlphaType alphaType = SKAlphaType.Unknown;
SKColorType colorType = SKColorType.Rgba8888;
switch (imageBuffer.Format.PixelChannels)
{
case PixelChannels.Rgbx:
alphaType = SKAlphaType.Opaque;
colorType = SKColorType.Rgba8888;
break;
case PixelChannels.Rgba:
alphaType = SKAlphaType.Unpremul;
colorType = SKColorType.Rgba8888;
break;
case PixelChannels.Bgrx:
alphaType = SKAlphaType.Opaque;
colorType = SKColorType.Bgra8888;
break;
case PixelChannels.Bgra:
alphaType = SKAlphaType.Unpremul;
colorType = SKColorType.Bgra8888;
break;
}
var sourceInfo = new SKImageInfo(imageBuffer.Width, imageBuffer.Height, colorType, alphaType);
Debug.Assert(sourceInfo.RowBytes == imageBuffer.Width * 4);
if (colorSpace != null)
{
sourceInfo.ColorSpace = colorSpace;
}
bitmap = new SKBitmap();
if (!bitmap.InstallPixels(sourceInfo, pinnedImage.Pointer))
{
throw new Exception("InstallPixels poperation of Skia bitmap failed.");
}
}
}
// for gray-scale
else if (imageBuffer.Format.PixelType == PixelType.U8C1)
{
// try direct copy
using (var pinnedImage = imageBuffer.Pin())
{
var sourceInfo = new SKImageInfo(imageBuffer.Width, imageBuffer.Height, SKColorType.Gray8);
Debug.Assert(sourceInfo.RowBytes == imageBuffer.Width);
bitmap = new SKBitmap();
if (!bitmap.InstallPixels(sourceInfo, pinnedImage.Pointer))
{
throw new Exception("InstallPixels poperation of Skia bitmap failed.");
}
}
}
else
{
throw new Exception("PixelFormat not yet implemented for preview image.");
}
SKBitmap result = bitmap;
bitmap = null;
colorSpace = null;
return(result);
}
finally
{
if (bitmap != null)
{
bitmap.Dispose();
if (colorSpace != null)
{
colorSpace.Dispose();
}
}
}
}
public ISkiaGpuRenderSession BeginRenderingSession()
{
if (_currentSize != _data.Size || _surface == null)
{
_data.Texture?.Dispose();
_surface?.Dispose();
_surface = null;
_data.Texture = null;
var game = AvaloniaLocator.Current.GetService <IGame>();
var gameSettings = game.Services.GetService <IGameSettingsService>().Settings;
var device = game.GraphicsDevice;
StrideDispatcher.StrideThread.InvokeAsync(() =>
{
_data.Texture = Texture.New2D(device, _data.Size.Width, _data.Size.Height, PixelFormat.B8G8R8A8_UNorm);
}).Wait(1000);
if (gameSettings.Configurations.Get <RenderingSettings>().ColorSpace == ColorSpace.Linear)
{
_surface = SKSurface.Create(new SKImageInfo(_data.Size.Width, _data.Size.Height, SKColorType.Bgra8888, SKAlphaType.Premul, SKColorSpace.CreateSrgbLinear()));
}
else
{
_surface = SKSurface.Create(new SKImageInfo(_data.Size.Width, _data.Size.Height, SKColorType.Bgra8888, SKAlphaType.Premul));
}
_currentSize = _data.Size;
}
return(new Session(_data, _surface, _options.WaitCopyTexture));
}