public static PipelineState ToVulkanPipelineState(this ProgramPipelineState state, VulkanRenderer gd)
{
PipelineState pipeline = new PipelineState();
pipeline.Initialize();
// It is assumed that Dynamic State is enabled when this conversion is used.
pipeline.BlendConstantA = state.BlendDescriptors[0].BlendConstant.Alpha;
pipeline.BlendConstantB = state.BlendDescriptors[0].BlendConstant.Blue;
pipeline.BlendConstantG = state.BlendDescriptors[0].BlendConstant.Green;
pipeline.BlendConstantR = state.BlendDescriptors[0].BlendConstant.Red;
pipeline.CullMode = state.CullEnable ? state.CullMode.Convert() : CullModeFlags.CullModeNone;
pipeline.DepthBoundsTestEnable = false; // Not implemented.
pipeline.DepthClampEnable = state.DepthClampEnable;
pipeline.DepthTestEnable = state.DepthTest.TestEnable;
pipeline.DepthWriteEnable = state.DepthTest.WriteEnable;
pipeline.DepthCompareOp = state.DepthTest.Func.Convert();
pipeline.FrontFace = state.FrontFace.Convert();
pipeline.HasDepthStencil = state.DepthStencilEnable;
pipeline.LineWidth = state.LineWidth;
pipeline.LogicOpEnable = state.LogicOpEnable;
pipeline.LogicOp = state.LogicOp.Convert();
pipeline.MinDepthBounds = 0f; // Not implemented.
pipeline.MaxDepthBounds = 0f; // Not implemented.
pipeline.PatchControlPoints = state.PatchControlPoints;
pipeline.PolygonMode = Silk.NET.Vulkan.PolygonMode.Fill; // Not implemented.
pipeline.PrimitiveRestartEnable = state.PrimitiveRestartEnable;
pipeline.RasterizerDiscardEnable = state.RasterizerDiscard;
pipeline.SamplesCount = (uint)state.SamplesCount;
if (gd.Capabilities.SupportsMultiView)
{
pipeline.ScissorsCount = Constants.MaxViewports;
pipeline.ViewportsCount = Constants.MaxViewports;
}
else
{
pipeline.ScissorsCount = 1;
pipeline.ViewportsCount = 1;
}
pipeline.DepthBiasEnable = state.BiasEnable != 0;
// Stencil masks and ref are dynamic, so are 0 in the Vulkan pipeline.
pipeline.StencilFrontFailOp = state.StencilTest.FrontSFail.Convert();
pipeline.StencilFrontPassOp = state.StencilTest.FrontDpPass.Convert();
pipeline.StencilFrontDepthFailOp = state.StencilTest.FrontDpFail.Convert();
pipeline.StencilFrontCompareOp = state.StencilTest.FrontFunc.Convert();
pipeline.StencilFrontCompareMask = 0;
pipeline.StencilFrontWriteMask = 0;
pipeline.StencilFrontReference = 0;
pipeline.StencilBackFailOp = state.StencilTest.BackSFail.Convert();
pipeline.StencilBackPassOp = state.StencilTest.BackDpPass.Convert();
pipeline.StencilBackDepthFailOp = state.StencilTest.BackDpFail.Convert();
pipeline.StencilBackCompareOp = state.StencilTest.BackFunc.Convert();
pipeline.StencilBackCompareMask = 0;
pipeline.StencilBackWriteMask = 0;
pipeline.StencilBackReference = 0;
pipeline.StencilTestEnable = state.StencilTest.TestEnable;
pipeline.Topology = state.Topology.Convert();
int vaCount = Math.Min(Constants.MaxVertexAttributes, state.VertexAttribCount);
for (int i = 0; i < vaCount; i++)
{
var attribute = state.VertexAttribs[i];
var bufferIndex = attribute.IsZero ? 0 : attribute.BufferIndex + 1;
pipeline.Internal.VertexAttributeDescriptions[i] = new VertexInputAttributeDescription(
(uint)i,
(uint)bufferIndex,
gd.FormatCapabilities.ConvertToVertexVkFormat(attribute.Format),
(uint)attribute.Offset);
}
int descriptorIndex = 1;
pipeline.Internal.VertexBindingDescriptions[0] = new VertexInputBindingDescription(0, 0, VertexInputRate.Vertex);
int vbCount = Math.Min(Constants.MaxVertexBuffers, state.VertexBufferCount);
for (int i = 0; i < vbCount; i++)
{
var vertexBuffer = state.VertexBuffers[i];
if (vertexBuffer.Enable)
{
var inputRate = vertexBuffer.Divisor != 0 ? VertexInputRate.Instance : VertexInputRate.Vertex;
// TODO: Support divisor > 1
pipeline.Internal.VertexBindingDescriptions[descriptorIndex++] = new VertexInputBindingDescription(
(uint)i + 1,
(uint)vertexBuffer.Stride,
inputRate);
}
}
pipeline.VertexBindingDescriptionsCount = (uint)descriptorIndex;
// NOTE: Viewports, Scissors are dynamic.
for (int i = 0; i < 8; i++)
{
var blend = state.BlendDescriptors[i];
pipeline.Internal.ColorBlendAttachmentState[i] = new PipelineColorBlendAttachmentState(
blend.Enable,
blend.ColorSrcFactor.Convert(),
blend.ColorDstFactor.Convert(),
blend.ColorOp.Convert(),
blend.AlphaSrcFactor.Convert(),
blend.AlphaDstFactor.Convert(),
blend.AlphaOp.Convert(),
(ColorComponentFlags)state.ColorWriteMask[i]);
}
int maxAttachmentIndex = 0;
for (int i = 0; i < 8; i++)
{
if (state.AttachmentEnable[i])
{
pipeline.Internal.AttachmentFormats[maxAttachmentIndex++] = gd.FormatCapabilities.ConvertToVkFormat(state.AttachmentFormats[i]);
}
}
if (state.DepthStencilEnable)
{
pipeline.Internal.AttachmentFormats[maxAttachmentIndex++] = gd.FormatCapabilities.ConvertToVkFormat(state.DepthStencilFormat);
}
pipeline.ColorBlendAttachmentStateCount = 8;
pipeline.VertexAttributeDescriptionsCount = (uint)Math.Min(Constants.MaxVertexAttributes, state.VertexAttribCount);
return(pipeline);
}