/// <summary>
/// Preparations before drawing
/// </summary>
void Prepare()
{
if (mBuffer == null)
{
NullArgumentException.Publish(typeof(MaskBuffer), "Buffer");
}
if (mMaskRasterizer == null)
{
mMaskRasterizer = new MaskRasterizer();
}
//throw new Exception("How to use the mask rasterizer correctly ?");
mMaskRasterizer.ResultMask = mBuffer;
preparationRequired = false;
}
/// <summary>
/// Preparations before drawing
/// </summary>
void Prepare()
{
if (mBuffer == null)
{
NullArgumentException.Publish(typeof(PixelsBuffer), "Buffer");
}
#region Initialize rasterizers
if (mPathGenerator == null)
{
mPathGenerator = new DrawingPathGenerator();
}
if (mColorRasterizer == null)
{
mColorRasterizer = new ColorRasterizer();
}
mColorRasterizer.Buffer = mBuffer;
if (mLinearGradientRasterizer == null)
{
mLinearGradientRasterizer = new LinearGradientRasterizer();
}
mLinearGradientRasterizer.Buffer = mBuffer;
if (mRadialGradientRasterizer == null)
{
mRadialGradientRasterizer = new RadialGradientRasterizer();
}
mRadialGradientRasterizer.Buffer = mBuffer;
preparationRequired = false;
#endregion
#region Prepare gamma correction
if (gammaPreparationRequired)
{
if (mGammaCorrected)
{
IGammaCorrector corrector = new PowerGammaCorrector(gammaRed, gammaGreen, gammaBlue);
mColorRasterizer.Gamma = corrector;
mLinearGradientRasterizer.Gamma = corrector;
mRadialGradientRasterizer.Gamma = corrector;
}
else
{
mColorRasterizer.Gamma = null;
mLinearGradientRasterizer.Gamma = null;
mRadialGradientRasterizer.Gamma = null;
}
gammaPreparationRequired = false;
}
#endregion
#region Prepare opacity masking
if (opacityPreparationRequired)
{
mColorRasterizer.OpacityMask = mOpacityMask;
mLinearGradientRasterizer.OpacityMask = mOpacityMask;
mRadialGradientRasterizer.OpacityMask = mOpacityMask;
opacityPreparationRequired = false;
}
#endregion
}