public CompositionEffectBrush CreateEffectBrush(
EffectType effectType,
string effectName,
float propertyValue,
IEnumerable<string> properties)
{
IGraphicsEffect effectDesc = null;
switch (effectType)
{
case EffectType.Saturation:
effectDesc = new SaturationEffect()
{
Name = effectName,
Saturation = propertyValue,
Source = new CompositionEffectSourceParameter("source")
};
break;
case EffectType.HueRotation:
effectDesc = new HueRotationEffect()
{
Name = effectName,
Angle = propertyValue,
Source = new CompositionEffectSourceParameter("source")
};
break;
case EffectType.Sepia:
effectDesc = new SepiaEffect()
{
Name = effectName,
Intensity = propertyValue,
Source = new CompositionEffectSourceParameter("source")
};
break;
}
CompositionEffectFactory effectFactory = _compositor.CreateEffectFactory(effectDesc, properties);
CompositionEffectBrush effectBrush = effectFactory.CreateBrush();
return effectBrush;
}
private ICanvasImage CreateSepia()
{
textLabel = requiresWin10;
var sepiaEffect = new SepiaEffect
{
Source = bitmapTiger
};
// Animation changes the sepia intensity.
animationFunction = elapsedTime =>
{
sepiaEffect.Intensity = 0.5f + (float)Math.Sin(elapsedTime * 4) * 0.5f;
};
return sepiaEffect;
}
private void MainGridLoaded(object sender, RoutedEventArgs e)
{
m_compositor = ElementCompositionPreview.GetElementVisual(MainGrid).Compositor;
m_root = m_compositor.CreateContainerVisual();
ElementCompositionPreview.SetElementChildVisual(MainGrid, m_root);
Size imageSize;
m_noEffectBrush = CreateBrushFromAsset(
"Bruno'sFamily2015 (13)-X2.jpg",
out imageSize);
m_imageAspectRatio = (imageSize.Width == 0 && imageSize.Height == 0) ? 1 : imageSize.Width / imageSize.Height;
m_sprite = m_compositor.CreateSpriteVisual();
ResizeImage(new Size(MainGrid.ActualWidth, MainGrid.ActualHeight));
m_root.Children.InsertAtTop(m_sprite);
// Image with alpha channel as an mask.
var alphaMaskEffectDesc = new CompositeEffect
{
Mode = CanvasComposite.DestinationIn,
Sources =
{
new CompositionEffectSourceParameter("Image"),
new Transform2DEffect
{
Name = "MaskTransform",
Source = new CompositionEffectSourceParameter("Mask")
}
}
};
m_alphaMaskEffectBrush = m_compositor.CreateEffectFactory(
alphaMaskEffectDesc,
new[] { "MaskTransform.TransformMatrix" }
).CreateBrush();
m_alphaMaskEffectBrush.SetSourceParameter(
"Image",
m_noEffectBrush);
m_alphaMaskEffectBrush.SetSourceParameter(
"Mask",
CreateBrushFromAsset("CircleMask.png"));
// Arithmetic operations between two images.
var arithmeticEffectDesc = new ArithmeticCompositeEffect
{
Name = "effect",
ClampOutput = false,
Source1 = new CompositionEffectSourceParameter("Source1"),
Source2 = new CompositionEffectSourceParameter("Source2")
};
m_arithmeticEffectBrush = m_compositor.CreateEffectFactory(
arithmeticEffectDesc,
new[]
{
"effect.MultiplyAmount",
"effect.Source1Amount",
"effect.Source2Amount",
"effect.Offset"
}
).CreateBrush();
m_arithmeticEffectBrush.SetSourceParameter(
"Source1",
m_noEffectBrush);
m_arithmeticEffectBrush.SetSourceParameter(
"Source2",
CreateBrushFromAsset("_P2A8041.jpg"));
// Creates a blend effect that combines two images.
var foregroundBrush = CreateBrushFromAsset("Checkerboard_100x100.png");
m_blendEffectBrushes = new CompositionEffectBrush[m_supportedBlendModes.Length];
for (int i = 0; i < m_supportedBlendModes.Length; i++)
{
var blendEffectDesc = new BlendEffect
{
Mode = m_supportedBlendModes[i],
Background = new CompositionEffectSourceParameter("Background"),
Foreground = new CompositionEffectSourceParameter("Foreground")
};
m_blendEffectBrushes[i] = m_compositor.CreateEffectFactory(
blendEffectDesc
).CreateBrush();
m_blendEffectBrushes[i].SetSourceParameter(
"Background",
m_noEffectBrush);
m_blendEffectBrushes[i].SetSourceParameter(
"Foreground",
foregroundBrush);
}
// Generates an image containing a solid color.
var colorSourceEffectDesc = new ColorSourceEffect // FloodEffect
{
Name = "effect"
};
m_colorSourceEffectBrush = m_compositor.CreateEffectFactory(
colorSourceEffectDesc,
new[] { "effect.Color" }
).CreateBrush();
// Changes the contrast of an image.
var contrastEffectDesc = new ContrastEffect
{
Name = "effect",
Source = new CompositionEffectSourceParameter("Image")
};
m_contrastEffectBrush = m_compositor.CreateEffectFactory(
contrastEffectDesc,
new[] { "effect.Contrast" }
).CreateBrush();
m_contrastEffectBrush.SetSourceParameter(
"Image",
m_noEffectBrush);
// Changes the exposure of an image.
var exposureEffectDesc = new ExposureEffect
{
Name = "effect",
Source = new CompositionEffectSourceParameter("Image")
};
m_exposureEffectBrush = m_compositor.CreateEffectFactory(
exposureEffectDesc,
new[] { "effect.Exposure" }
).CreateBrush();
m_exposureEffectBrush.SetSourceParameter(
"Image",
m_noEffectBrush);
// Alters the colors of an image by applying a per-channel gamma transfer function.
var gammaTransferEffectDesc = new GammaTransferEffect
{
Name = "effect",
RedDisable = false,
GreenDisable = false,
BlueDisable = false,
AlphaDisable = false,
Source = new CompositionEffectSourceParameter("Image")
};
m_gammaTransferEffectBrush = m_compositor.CreateEffectFactory(
gammaTransferEffectDesc,
new[]
{
"effect.RedAmplitude",
"effect.RedExponent",
"effect.RedOffset",
"effect.GreenAmplitude",
"effect.GreenExponent",
"effect.GreenOffset",
"effect.BlueAmplitude",
"effect.BlueExponent",
"effect.BlueOffset"
}
).CreateBrush();
m_gammaTransferEffectBrush.SetSourceParameter(
"Image",
m_noEffectBrush);
// Converts an image to monochromatic gray.
var grayscaleEffectDesc = new GrayscaleEffect
{
Name = "effect",
Source = new CompositionEffectSourceParameter("Image")
};
m_grayscaleEffectBrush = m_compositor.CreateEffectFactory(
grayscaleEffectDesc
).CreateBrush();
m_grayscaleEffectBrush.SetSourceParameter(
"Image",
m_noEffectBrush);
// Alters the color of an image by rotating its hue values.
var hueRotationEffectDesc = new HueRotationEffect
{
Name = "effect",
Source = new CompositionEffectSourceParameter("Image")
};
m_hueRotationEffectBrush = m_compositor.CreateEffectFactory(
hueRotationEffectDesc,
new[] { "effect.Angle" }
).CreateBrush();
m_hueRotationEffectBrush.SetSourceParameter(
"Image",
m_noEffectBrush);
// Inverts the colors of an image.
var invertEffectDesc = new InvertEffect
{
Name = "effect",
Source = new CompositionEffectSourceParameter("Image")
};
m_invertEffectBrush = m_compositor.CreateEffectFactory(
invertEffectDesc
).CreateBrush();
m_invertEffectBrush.SetSourceParameter(
"Image",
m_noEffectBrush);
// Alters the saturation of an image.
var saturationEffectDesc = new SaturationEffect
{
Name = "effect",
Source = new CompositionEffectSourceParameter("Image")
};
m_saturateEffectBrush = m_compositor.CreateEffectFactory(
saturationEffectDesc,
new[] { "effect.Saturation" }
).CreateBrush();
m_saturateEffectBrush.SetSourceParameter(
"Image",
m_noEffectBrush);
// Converts an image to sepia tones.
var supportedAlphaModes = new[]
{
CanvasAlphaMode.Premultiplied,
CanvasAlphaMode.Straight
};
m_sepiaEffectBrushes = new CompositionEffectBrush[supportedAlphaModes.Length];
for (int i = 0; i < supportedAlphaModes.Length; i++)
{
var sepiaEffectDesc = new SepiaEffect
{
Name = "effect",
AlphaMode = supportedAlphaModes[i],
Source = new CompositionEffectSourceParameter("Image")
};
m_sepiaEffectBrushes[i] = m_compositor.CreateEffectFactory(
sepiaEffectDesc,
new[] { "effect.Intensity" }
).CreateBrush();
m_sepiaEffectBrushes[i].SetSourceParameter(
"Image",
m_noEffectBrush);
}
// Adjusts the temperature and/or tint of an image.
var temperatureAndTintEffectDesc = new TemperatureAndTintEffect
{
Name = "effect",
Source = new CompositionEffectSourceParameter("Image")
};
m_temperatureAndTintEffectBrush = m_compositor.CreateEffectFactory(
temperatureAndTintEffectDesc,
new[]
{
"effect.Temperature",
"effect.Tint"
}
).CreateBrush();
m_temperatureAndTintEffectBrush.SetSourceParameter(
"Image",
m_noEffectBrush);
// Applies a 2D affine transform matrix to an image.
var transform2DEffectDesc = new Transform2DEffect
{
TransformMatrix = new Matrix3x2(
-1, 0,
0, 1,
m_sprite.Size.X, 0),
Source = new CompositionEffectSourceParameter("Image")
};
m_transform2DEffectBrush = m_compositor.CreateEffectFactory(
transform2DEffectDesc
).CreateBrush();
m_transform2DEffectBrush.SetSourceParameter(
"Image",
m_noEffectBrush);
// For simplying UI states switch, put effect parameter grids in an array
m_effectParamsGrids = new Grid[(int)EffectType.NumEffectTypes];
m_effectParamsGrids[(int)EffectType.NoEffect] = null;
m_effectParamsGrids[(int)EffectType.AlphaMask] = AlphaMaskParams;
m_effectParamsGrids[(int)EffectType.Arithmetic] = ArithmeticParams;
m_effectParamsGrids[(int)EffectType.Blend] = BlendParams;
m_effectParamsGrids[(int)EffectType.ColorSource] = ColorSourceParams;
m_effectParamsGrids[(int)EffectType.Contrast] = ContrastParams;
m_effectParamsGrids[(int)EffectType.Exposure] = ExposureParams;
m_effectParamsGrids[(int)EffectType.GammaTransfer] = GammaTransferParams;
m_effectParamsGrids[(int)EffectType.Grayscale] = null;
m_effectParamsGrids[(int)EffectType.HueRotation] = HueRotationParams;
m_effectParamsGrids[(int)EffectType.Invert] = null;
m_effectParamsGrids[(int)EffectType.Saturation] = SaturationParams;
m_effectParamsGrids[(int)EffectType.Sepia] = SepiaParams;
m_effectParamsGrids[(int)EffectType.TemperatureAndTint] = TemperatureAndTintParams;
m_effectParamsGrids[(int)EffectType.Transform2D] = null;
// Same as grids
m_effectBrushes = new CompositionBrush[(int)EffectType.NumEffectTypes];
m_effectBrushes[(int)EffectType.NoEffect] = m_noEffectBrush;
m_effectBrushes[(int)EffectType.AlphaMask] = m_alphaMaskEffectBrush;
m_effectBrushes[(int)EffectType.Arithmetic] = m_arithmeticEffectBrush;
m_effectBrushes[(int)EffectType.Blend] = m_blendEffectBrushes[m_activeBlendMode];
m_effectBrushes[(int)EffectType.ColorSource] = m_colorSourceEffectBrush;
m_effectBrushes[(int)EffectType.Contrast] = m_contrastEffectBrush;
m_effectBrushes[(int)EffectType.Exposure] = m_exposureEffectBrush;
m_effectBrushes[(int)EffectType.GammaTransfer] = m_gammaTransferEffectBrush;
m_effectBrushes[(int)EffectType.Grayscale] = m_grayscaleEffectBrush;
m_effectBrushes[(int)EffectType.HueRotation] = m_hueRotationEffectBrush;
m_effectBrushes[(int)EffectType.Invert] = m_invertEffectBrush;
m_effectBrushes[(int)EffectType.Saturation] = m_saturateEffectBrush;
m_effectBrushes[(int)EffectType.Sepia] = m_sepiaEffectBrushes[m_activeSepiaAlphaMode];
m_effectBrushes[(int)EffectType.TemperatureAndTint] = m_temperatureAndTintEffectBrush;
m_effectBrushes[(int)EffectType.Transform2D] = m_transform2DEffectBrush;
this.InitializeValues();
}
