public GLGraphicsPipelineBlendColorState Initialize(uint noOfAttachments)
{
var initialState = new GLGraphicsPipelineBlendColorState {
LogicOpEnable = false,
LogicOp = MgLogicOp.COPY,
Attachments = new GLGraphicsPipelineBlendColorAttachmentState[noOfAttachments],
};
for (uint i = 0; i < noOfAttachments; ++i)
{
var attachment = new GLGraphicsPipelineBlendColorAttachmentState {
BlendEnable = false,
ColorWriteMask = MgColorComponentFlagBits.R_BIT | MgColorComponentFlagBits.G_BIT | MgColorComponentFlagBits.B_BIT | MgColorComponentFlagBits.A_BIT,
ColorBlendOp = MgBlendOp.ADD,
AlphaBlendOp = MgBlendOp.ADD,
SrcColorBlendFactor = MgBlendFactor.ONE,
DstColorBlendFactor = MgBlendFactor.ZERO,
SrcAlphaBlendFactor = MgBlendFactor.ONE,
DstAlphaBlendFactor = MgBlendFactor.ZERO,
};
EnableBlending(i, attachment.BlendEnable);
SetColorMask(i, attachment.ColorWriteMask);
ApplyBlendSeparateFunction(i,
attachment.SrcColorBlendFactor,
attachment.DstColorBlendFactor,
attachment.SrcAlphaBlendFactor,
attachment.DstAlphaBlendFactor);
initialState.Attachments [i] = attachment;
}
return(initialState);
}
void PopulateColorBlend(MgPipelineColorBlendStateCreateInfo colorBlend)
{
ColorBlendEnums = new GLGraphicsPipelineBlendColorState();
if (colorBlend != null)
{
BlendConstants = colorBlend.BlendConstants;
ColorBlendEnums.LogicOpEnable = colorBlend.LogicOpEnable;
ColorBlendEnums.LogicOp = colorBlend.LogicOp;
if (colorBlend.Attachments != null)
{
var colorAttachments = new GLGraphicsPipelineBlendColorAttachmentState[colorBlend.Attachments.Length];
for (uint i = 0; i < colorBlend.Attachments.Length; ++i)
{
var attachment = colorBlend.Attachments[i];
colorAttachments[i] = new GLGraphicsPipelineBlendColorAttachmentState {
BlendEnable = attachment.BlendEnable,
SrcColorBlendFactor = attachment.SrcColorBlendFactor,
DstColorBlendFactor = attachment.DstColorBlendFactor,
ColorBlendOp = attachment.ColorBlendOp,
SrcAlphaBlendFactor = attachment.SrcAlphaBlendFactor,
DstAlphaBlendFactor = attachment.DstAlphaBlendFactor,
AlphaBlendOp = attachment.AlphaBlendOp,
ColorWriteMask = attachment.ColorWriteMask,
};
}
ColorBlendEnums.Attachments = colorAttachments;
}
else
{
ColorBlendEnums.Attachments = new GLGraphicsPipelineBlendColorAttachmentState[] { };
}
}
else
{
BlendConstants = new MgColor4f(0f, 0f, 0f, 0f);
ColorBlendEnums.Attachments = new GLGraphicsPipelineBlendColorAttachmentState[] { };
ColorBlendEnums.LogicOpEnable = false;
ColorBlendEnums.LogicOp = MgLogicOp.COPY;
}
}