protected override bool BeginRenderEffectOverride(Texture texture, RenderContext renderContext)
{
if (_refresh)
{
_imageContext = new ImageContext();
_refresh = false;
}
RectangleF rect = renderContext.OccupiedTransformedBounds;
SizeF frameSize = new SizeF(rect.Width, rect.Height);
_imageContext.FrameSize = frameSize;
_imageContext.ExtraParameters = GetShaderParameters();
_imageContext.ShaderEffect = SkinResources.EFFECTS_SUB_DIRECTORY + '\\' + _partialShaderEffect;
Vector4 lastFrameData = new Vector4(rect.Width, rect.Height, 0.0f, 0.0f);
_imageContext.StartRender(renderContext, frameSize, texture, CROP_FULLSIZE, Color.Transparent, lastFrameData);
return true;
}
protected void CycleTextures(RightAngledRotation rotation)
{
// Current -> Last
_lastTexture = _currentTexture;
_lastImageContext = _imageContext;
// Next -> Current
_currentTexture = _nextTexture;
_imageContext = new ImageContext
{
FrameSize = _frameSize,
ShaderEffect = Effect,
Rotation = rotation
};
// Clear next
_nextTexture = null;
if (_lastTexture != _currentTexture)
{
StartTransition();
FireChanged();
}
}
void Init()
{
_streamProperty = new SProperty(typeof(int), 0);
_geometryProperty = new SProperty(typeof(string), null);
_borderColorProperty = new SProperty(typeof(Color), Color.Black);
_imageContext = new ImageContext
{
OnRefresh = OnImagecontextRefresh,
ExtraParameters = new System.Collections.Generic.Dictionary<string, object>()
};
}
protected void CycleTextures(Texture nextTexture, RectangleF textureClip, RightAngledRotation nextRotation)
{
TryDispose(ref _lastTexture);
// Current -> Last
_lastTexture = _currentTexture;
_lastRawSourceSize = _currentClippedSize;
_lastTextureClip = _currentTextureClip;
_lastImageContext = _imageContext;
// Next -> Current
SizeF textureSize;
_currentTexture = CreateTextureCopy(nextTexture, out textureSize);
_currentTextureSize = textureSize;
UpdateTextureClip(textureClip);
_imageContext = new ImageContext
{
FrameSize = _frameSize,
ShaderEffect = Effect,
Rotation = nextRotation
};
StartTransition();
FireChanged();
}
/// <summary>
/// Starts a rendering operation where two images are mixed together using a transition effect.
/// </summary>
/// <param name="renderContext">The current rendering context.</param>
/// <param name="mixValue">A value between 0.0 and 1.0 that governs how much each image contributes to the final rendering.</param>
/// <param name="startContext">The <see cref="ImageContext"/> data for the starting position of the transition
/// (this context is the end point).</param>
/// <param name="targetEndImageSize">The size, the final end image should take within the frame. This size is given in the same
/// orientation as the <paramref name="endTexture"/>, i.e. it is not rotated.</param>
/// <param name="endTexture">A texture object containing the end image.</param>
/// <param name="endTextureClip">The section of the end texture that should be rendered. Values are between 0 and 1.</param>
/// <param name="borderColor">The color to use outside the image's boundaries.</param>
/// <param name="startFrameData">Additional data to be used by the starting image shaders.</param>
/// <param name="endFrameData">Additional data to be used by the ending image shaders.</param>
/// <returns><c>true</c> if the rendering operation was started.</returns>
public bool StartRenderTransition(RenderContext renderContext, float mixValue, ImageContext startContext,
SizeF targetEndImageSize, Texture endTexture, RectangleF endTextureClip, Color borderColor, Vector4 startFrameData, Vector4 endFrameData)
{
RefreshParameters(targetEndImageSize, endTexture, endTextureClip);
if (_effectTransition == null)
_effectTransition = ContentManager.Instance.GetEffect(GetTransitionEffectName());
if (_lastTexture == null || _effectTransition == null)
return false;
// Apply effect parameters
_effectTransition.Parameters[PARAM_OPACITY] = (float) renderContext.Opacity;
_effectTransition.Parameters[PARAM_RELATIVE_TRANSFORM] = _inverseRelativeTransformCache;
_effectTransition.Parameters[PARAM_BRUSH_TRANSFORM] = _imageTransform;
_effectTransition.Parameters[PARAM_FRAME_DATA] = endFrameData;
_effectTransition.Parameters[PARAM_MIX_AB] = mixValue;
startContext.ApplyTransitionParametersAsStartingSource(_effectTransition, startFrameData);
// Disable antialiasing for image rendering.
GraphicsDevice.Device.SetRenderState(RenderState.MultisampleAntialias, false);
// Set border colour for area outside of texture boundaries
GraphicsDevice.Device.SetSamplerState(0, SamplerState.BorderColor, borderColor.ToBgra());
GraphicsDevice.Device.SetSamplerState(1, SamplerState.BorderColor, borderColor.ToBgra());
// Render
_effectTransition.StartRender(_lastTexture, renderContext.Transform);
return true;
}
/// <summary>
/// Starts a rendering operation where two images are mixed together using a transition effect.
/// </summary>
/// <param name="renderContext">The current rendering context.</param>
/// <param name="mixValue">A value between 0.0 and 1.0 that governs how much each image contributes to the final rendering.</param>
/// <param name="startContext">The <see cref="ImageContext"/> data for the starting position of the transition
/// (this context is the end point).</param>
/// <param name="targetEndImageSize">The size, the final end image should take within the frame. This size is given in the same
/// orientation as the <paramref name="endTexture"/>, i.e. it is not rotated.</param>
/// <param name="endTexture">A texture object containing the end image.</param>
/// <param name="endTextureClip">The section of the end texture that should be rendered. Values are between 0 and 1.</param>
/// <param name="borderColor">The color to use outside the image's boundaries.</param>
/// <param name="startFrameData">Additional data to be used by the starting image shaders.</param>
/// <param name="endFrameData">Additional data to be used by the ending image shaders.</param>
/// <returns><c>true</c> if the rendering operation was started.</returns>
public bool StartRenderTransition(RenderContext renderContext, float mixValue, ImageContext startContext,
SizeF targetEndImageSize, Texture endTexture, RectangleF endTextureClip, Color borderColor, Vector4 startFrameData, Vector4 endFrameData)
{
RefreshParameters(targetEndImageSize, endTexture, endTextureClip);
if (_effectTransition == null)
{
_effectTransition = ContentManager.Instance.GetEffect(GetTransitionEffectName());
}
if (_lastTexture == null || _effectTransition == null)
{
return(false);
}
// Apply effect parameters
_effectTransition.Parameters[PARAM_OPACITY] = (float)renderContext.Opacity;
_effectTransition.Parameters[PARAM_RELATIVE_TRANSFORM] = _inverseRelativeTransformCache;
_effectTransition.Parameters[PARAM_BRUSH_TRANSFORM] = _imageTransform;
_effectTransition.Parameters[PARAM_FRAME_DATA] = endFrameData;
_effectTransition.Parameters[PARAM_MIX_AB] = mixValue;
startContext.ApplyTransitionParametersAsStartingSource(_effectTransition, startFrameData);
// Disable antialiasing for image rendering.
GraphicsDevice.Device.SetRenderState(RenderState.MultisampleAntialias, false);
// Set border colour for area outside of texture boundaries
GraphicsDevice.Device.SetSamplerState(0, SamplerState.BorderColor, borderColor.ToBgra());
GraphicsDevice.Device.SetSamplerState(1, SamplerState.BorderColor, borderColor.ToBgra());
// Render
_effectTransition.StartRender(_lastTexture, renderContext.Transform);
return(true);
}
