public override void RGBAlphaBlendEquation(BlendEquation BlendEquationRGB, BlendEquation BlendEquationAlpha)
{
BlendOp = blendOps[(int)BlendEquationRGB];
BlendOpAlpha = blendOps[(int)BlendEquationAlpha];
device.SetRenderState(RenderState.BlendOperation, (int)BlendOp);
device.SetRenderState(RenderState.BlendOperationAlpha, (int)BlendOpAlpha);
}
public BlendState(BlendFactor sourceRgb, BlendFactor sourceAlpha, BlendFactor destinationRgb, BlendFactor destinationAlpha, BlendEquation equationRgb, BlendEquation equationAlpha)
{
SourceRgb = sourceRgb;
SourceAlpha = sourceAlpha;
DestinationRgb = destinationRgb;
DestinationAlpha = destinationAlpha;
EquationRgb = equationRgb;
EquationAlpha = equationAlpha;
}
private BlendOperation GetBlendOperation(BlendEquation value)
{
switch(value)
{
case BlendEquation.AddBothValues: return BlendOperation.Add;
case BlendEquation.SubtractFirstFromSecond: return BlendOperation.Subtract;
case BlendEquation.SubtractSecondFromFirst: return BlendOperation.ReverseSubtract;
case BlendEquation.Minimum: return BlendOperation.Minimum;
case BlendEquation.Maximum: return BlendOperation.Maximum;
}
throw new NotSupportedException("The specified blend operation is not supported");
}
private static void Load_VERSION_1_4()
{
BlendFuncSeparate = GetAddress <BlendFuncSeparate>("glBlendFuncSeparate");
MultiDrawArrays = GetAddress <MultiDrawArrays>("glMultiDrawArrays");
_MultiDrawElements = GetAddress <MultiDrawElements>("glMultiDrawElements");
PointParameterf = GetAddress <PointParameterf>("glPointParameterf");
PointParameterfv = GetAddress <PointParameterfv>("glPointParameterfv");
_PointParameteri = GetAddress <PointParameteri>("glPointParameteri");
PointParameteriv = GetAddress <PointParameteriv>("glPointParameteriv");
BlendColor = GetAddress <BlendColor>("glBlendColor");
BlendEquation = GetAddress <BlendEquation>("glBlendEquation");
VERSION_1_4 = VERSION_1_3 && BlendFuncSeparate != null && MultiDrawArrays != null && _MultiDrawElements != null &&
PointParameterf != null && _PointParameteri != null && BlendColor != null && BlendEquation != null;
}
private BlendOperation GetBlendOperation(BlendEquation value)
{
switch (value)
{
case BlendEquation.AddBothValues: return(BlendOperation.Add);
case BlendEquation.SubtractFirstFromSecond: return(BlendOperation.Subtract);
case BlendEquation.SubtractSecondFromFirst: return(BlendOperation.ReverseSubtract);
case BlendEquation.Minimum: return(BlendOperation.Minimum);
case BlendEquation.Maximum: return(BlendOperation.Maximum);
}
throw new NotSupportedException("The specified blend operation is not supported");
}
public BlendState(
bool enabled,
BlendFactor colourSource,
BlendFactor alphaSource,
BlendFactor colourDestination,
BlendFactor alphaDestination,
BlendEquation colourEquation,
BlendEquation alphaEquation)
{
Enabled = enabled;
ColourSource = colourSource;
AlphaSource = alphaSource;
ColourDestination = colourDestination;
AlphaDestination = alphaDestination;
ColourEquation = colourEquation;
AlphaEquation = alphaEquation;
}
public static BlendEquationMode To(BlendEquation equation)
{
switch (equation)
{
case BlendEquation.Add:
return(BlendEquationMode.FuncAdd);
case BlendEquation.Minimum:
return(BlendEquationMode.Min);
case BlendEquation.Maximum:
return(BlendEquationMode.Max);
case BlendEquation.Subtract:
return(BlendEquationMode.FuncSubtract);
case BlendEquation.ReverseSubtract:
return(BlendEquationMode.FuncReverseSubtract);
}
throw new ArgumentException("equation");
}
internal static double ToWebGL2(this BlendEquation blendEquation)
{
switch (blendEquation)
{
case BlendEquation.Add:
return(FUNC_ADD);
case BlendEquation.Subtract:
return(FUNC_SUBTRACT);
case BlendEquation.ReverseSubtract:
return(FUNC_REVERSE_SUBTRACT);
case BlendEquation.Max:
return(WebGL2Graphics.MAX);
case BlendEquation.Min:
return(WebGL2Graphics.MIN);
default:
throw new IllegalValueException(typeof(BlendEquation), blendEquation);
}
}
internal static double ToWebGL(this BlendEquation blendEquation)
{
switch (blendEquation)
{
case BlendEquation.Add:
return(GL.FUNC_ADD);
case BlendEquation.Subtract:
return(GL.FUNC_SUBTRACT);
case BlendEquation.ReverseSubtract:
return(GL.FUNC_REVERSE_SUBTRACT);
case BlendEquation.Max:
return(Extensions.EXT_blend_minmax.MAX_EXT);
case BlendEquation.Min:
return(Extensions.EXT_blend_minmax.MIN_EXT);
default:
throw new IllegalValueException(typeof(BlendEquation), blendEquation);
}
}
internal static OpenGLBindings.BlendEquation ToOpenGL(this BlendEquation blendEquation)
{
switch (blendEquation)
{
case BlendEquation.Add:
return(OpenGLBindings.BlendEquation.Add);
case BlendEquation.Subtract:
return(OpenGLBindings.BlendEquation.Subtract);
case BlendEquation.ReverseSubtract:
return(OpenGLBindings.BlendEquation.ReverseSubtract);
case BlendEquation.Max:
return(OpenGLBindings.BlendEquation.Max);
case BlendEquation.Min:
return(OpenGLBindings.BlendEquation.Min);
default:
throw new IllegalValueException(typeof(BlendEquation), blendEquation);
}
}
public BlendState(BlendFactor source, BlendFactor destination, BlendEquation equation)
: this(source, source, destination, destination, equation, equation)
{
}
public BlendState(BlendFactor sourceRgb, BlendFactor sourceAlpha, BlendFactor destinationRgb, BlendFactor destinationAlpha, BlendEquation equationRgb, BlendEquation equationAlpha)
{
SourceRgb = sourceRgb;
SourceAlpha = sourceAlpha;
DestinationRgb = destinationRgb;
DestinationAlpha = destinationAlpha;
EquationRgb = equationRgb;
EquationAlpha = equationAlpha;
}
public override void RGBAlphaBlendEquation(BlendEquation BlendEquationRGB, BlendEquation BlendEquationAlpha)
{
GL.BlendEquationSeparate(blendEquations[(int)BlendEquationRGB], blendEquations[(int)BlendEquationAlpha]);
}
public void BlendEquation(BlendEquation equation)
{
glBlendEquation((int)equation);
}
public BlendState(BlendFactor source, BlendFactor destination, BlendEquation equation) : this(source, source, destination, destination, equation, equation)
{
}
public void SetEquation(BlendEquation equation)
{
GI.BlendEquation(equation);
}
public BlendMode(BlendEquation equation, BlendingFactor sourceFactor, BlendingFactor destinationFactor)
{
this.Equation = equation;
this.SourceFactor = sourceFactor;
this.DestinationFactor = destinationFactor;
}
public BlendMode(BlendFactor src, BlendFactor dst, BlendEquation eq)
{
Src = src;
Dst = dst;
Eq = eq;
}
public abstract void RGBAlphaBlendEquation(BlendEquation BlendEquationRGB, BlendEquation BlendEquationAlpha);
public static void InitGL_1_2(OpenGLContext ctx)
{
glBlendColor = ctx.GetProc<BlendColor>("glBlendColor");
glBlendEquation = ctx.GetProc<BlendEquation>("glBlendEquation");
glDrawRangeElements = ctx.GetProc<DrawRangeElements>("glDrawRangeElements");
glTexImage3D = ctx.GetProc<TexImage3D>("glTexImage3D");
glTexSubImage3D = ctx.GetProc<TexSubImage3D>("glTexSubImage3D");
glCopyTexSubImage3D = ctx.GetProc<CopyTexSubImage3D>("glCopyTexSubImage3D");
}
public static BlendEquationMode To(BlendEquation equation)
{
switch (equation)
{
case BlendEquation.Add:
return BlendEquationMode.FuncAdd;
case BlendEquation.Minimum:
return BlendEquationMode.Min;
case BlendEquation.Maximum:
return BlendEquationMode.Max;
case BlendEquation.Subtract:
return BlendEquationMode.FuncSubtract;
case BlendEquation.ReverseSubtract:
return BlendEquationMode.FuncReverseSubtract;
}
throw new ArgumentException("equation");
}
