public static PipelineLayout CreatePipelineLayout(Graphics g, params DescriptorSetLayout[] setLayouts)
{
var layoutCreateInfo = new PipelineLayoutCreateInfo(setLayouts);
return(g.Context.Device.CreatePipelineLayout(layoutCreateInfo));
}
public static Pipeline CreateGraphicsPipeline(Graphics g, PipelineLayout pl, RenderPass rp, string[] shaderNames, bool depthTest, bool depthWrite, bool instancing, Type instanceInfoType, BlendMode blendMode, PrimitiveType primType, PrimitiveRenderMode pmode, PrimitiveCullMode cmode, float lineWidth, Vector2 viewportPos, Vector2 viewportSize)
{
if (instancing && instanceInfoType == null)
{
throw new NullReferenceException("Instance info type cannot be null");
}
var shaderStageCreateInfos = new PipelineShaderStageCreateInfo[shaderNames.Length];
for (var i = 0; i < shaderNames.Length; i++)
{
var shader = g.Context.Content.Get <ShaderModule>(shaderNames[i]);
var shaderName = Path.GetFileNameWithoutExtension(shaderNames[i]);
switch (Path.GetExtension(shaderName))
{
case ".vert":
shaderStageCreateInfos[i] = new PipelineShaderStageCreateInfo(ShaderStages.Vertex, shader, "main");
break;
case ".frag":
shaderStageCreateInfos[i] = new PipelineShaderStageCreateInfo(ShaderStages.Fragment, shader, "main");
break;
default:
throw new NotImplementedException($"Unreognized shader type for file \"{shaderNames[i]}\"");
}
}
var fields = typeof(Vertex).GetFields();
var offset = 0;
var loci = 0;
List <VertexInputAttributeDescription> vertexAttributes = new List <VertexInputAttributeDescription>(fields.Length);
for (var i = 0; i < fields.Length; i++)
{
var ftype = fields[i].FieldType;
if (ftype == typeof(Vector3) || ftype == typeof(Angle))
{
vertexAttributes.Add(new VertexInputAttributeDescription(loci, 0, Format.R32G32B32SFloat, offset));
offset += 12;
loci++;
}
else if (ftype == typeof(Vector2))
{
vertexAttributes.Add(new VertexInputAttributeDescription(loci, 0, Format.R32G32SFloat, offset));
offset += 8;
loci++;
}
else if (ftype == typeof(Color4))
{
vertexAttributes.Add(new VertexInputAttributeDescription(loci, 0, Format.R32G32B32A32SFloat, offset));
offset += 16;
loci++;
}
else if (ftype == typeof(float))
{
vertexAttributes.Add(new VertexInputAttributeDescription(loci, 0, Format.R32SFloat, offset));
offset += 4;
loci++;
}
else if (ftype == typeof(Matrix4))
{
vertexAttributes.Add(new VertexInputAttributeDescription(loci, 0, Format.R32G32B32A32SFloat, offset));
loci++;
offset += 16;
vertexAttributes.Add(new VertexInputAttributeDescription(loci, 0, Format.R32G32B32A32SFloat, offset));
loci++;
offset += 16;
vertexAttributes.Add(new VertexInputAttributeDescription(loci, 0, Format.R32G32B32A32SFloat, offset));
loci++;
offset += 16;
vertexAttributes.Add(new VertexInputAttributeDescription(loci, 0, Format.R32G32B32A32SFloat, offset));
loci++;
offset += 16;
}
else
{
throw new Exception("Field " + fields[i] + " of vertex struct is an illegal type");
}
}
var vertexFieldsLength = fields.Length;
if (instancing)
{
fields = instanceInfoType.GetFields();
offset = 0;
for (var i = 0; i < fields.Length; i++)
{
var ftype = fields[i].FieldType;
if (ftype == typeof(Vector3) || ftype == typeof(Angle))
{
vertexAttributes.Add(new VertexInputAttributeDescription(loci, 1, Format.R32G32B32SFloat, offset));
loci++;
offset += 12;
}
else if (ftype == typeof(Vector2))
{
vertexAttributes.Add(new VertexInputAttributeDescription(loci, 1, Format.R32G32SFloat, offset));
loci++;
offset += 8;
}
else if (ftype == typeof(Color4))
{
vertexAttributes.Add(new VertexInputAttributeDescription(loci, 1, Format.R32G32B32A32SFloat, offset));
loci++;
offset += 16;
}
else if (ftype == typeof(float))
{
vertexAttributes.Add(new VertexInputAttributeDescription(loci, 1, Format.R32SFloat, offset));
loci++;
offset += 4;
}
else if (ftype == typeof(Matrix4))
{
vertexAttributes.Add(new VertexInputAttributeDescription(loci, 1, Format.R32G32B32A32SFloat, offset));
loci++;
offset += 16;
vertexAttributes.Add(new VertexInputAttributeDescription(loci, 1, Format.R32G32B32A32SFloat, offset));
loci++;
offset += 16;
vertexAttributes.Add(new VertexInputAttributeDescription(loci, 1, Format.R32G32B32A32SFloat, offset));
loci++;
offset += 16;
vertexAttributes.Add(new VertexInputAttributeDescription(loci, 1, Format.R32G32B32A32SFloat, offset));
loci++;
offset += 16;
}
else
{
throw new Exception("Field " + fields[i] + " of instance info struct is an illegal type");
}
}
}
var vertexInputStateCreateInfo = new PipelineVertexInputStateCreateInfo(
(instancing ? new[]
{
new VertexInputBindingDescription(0, Interop.SizeOf <Vertex>(), VertexInputRate.Vertex),
new VertexInputBindingDescription(1, System.Runtime.InteropServices.Marshal.SizeOf(instanceInfoType), VertexInputRate.Instance)
} :
new[]
{
new VertexInputBindingDescription(0, Interop.SizeOf <Vertex>(), VertexInputRate.Vertex)
}),
vertexAttributes.ToArray()
);
var inputAssemblyStateCreateInfo = new PipelineInputAssemblyStateCreateInfo((PrimitiveTopology)primType);
var viewportStateCreateInfo = new PipelineViewportStateCreateInfo(
new Viewport(viewportPos.X + viewportSize.X, viewportPos.Y + viewportSize.Y, -viewportSize.X, -viewportSize.Y),
new Rect2D((int)viewportPos.X, (int)viewportPos.Y, (int)viewportSize.X, (int)viewportSize.Y));
var rasterizationStateCreateInfo = new PipelineRasterizationStateCreateInfo
{
PolygonMode = (PolygonMode)pmode,
CullMode = (CullModes)cmode,
FrontFace = FrontFace.Clockwise,
LineWidth = lineWidth
};
var multisampleStateCreateInfo = new PipelineMultisampleStateCreateInfo
{
RasterizationSamples =
g.Samples >= 48 ? SampleCounts.Count64 :
g.Samples >= 24 ? SampleCounts.Count32 :
g.Samples >= 12 ? SampleCounts.Count16 :
g.Samples >= 6 ? SampleCounts.Count8 :
g.Samples >= 3 ? SampleCounts.Count4 :
g.Samples == 2 ? SampleCounts.Count2 :
SampleCounts.Count1,
MinSampleShading = 1.0f
};
var depthStencilCreateInfo = new PipelineDepthStencilStateCreateInfo
{
DepthTestEnable = depthTest,
DepthWriteEnable = depthWrite,
DepthCompareOp = CompareOp.LessOrEqual,
Back = new StencilOpState
{
FailOp = StencilOp.Keep,
PassOp = StencilOp.Keep,
CompareOp = CompareOp.Always
},
Front = new StencilOpState
{
FailOp = StencilOp.Keep,
PassOp = StencilOp.Keep,
CompareOp = CompareOp.Always
}
};
var colorBlendAttachmentState = new PipelineColorBlendAttachmentState
{
SrcColorBlendFactor = BlendMode.GetBlendFactor(blendMode.SrcColorFactor),
DstColorBlendFactor = BlendMode.GetBlendFactor(blendMode.DstColorFactor),
ColorBlendOp = BlendMode.GetBlendOp(blendMode.ColorOp),
SrcAlphaBlendFactor = BlendMode.GetBlendFactor(blendMode.SrcAlphaFactor),
DstAlphaBlendFactor = BlendMode.GetBlendFactor(blendMode.DstAlphaFactor),
AlphaBlendOp = BlendMode.GetBlendOp(blendMode.AlphaOp),
ColorWriteMask = BlendMode.GetColorWriteMask(blendMode.Mask),
BlendEnable = true
};
var colorBlendStateCreateInfo = new PipelineColorBlendStateCreateInfo(
new[] { colorBlendAttachmentState });
var pipelineCreateInfo = new GraphicsPipelineCreateInfo(
pl, rp, 0,
shaderStageCreateInfos,
inputAssemblyStateCreateInfo,
vertexInputStateCreateInfo,
rasterizationStateCreateInfo,
viewportState: viewportStateCreateInfo,
multisampleState: multisampleStateCreateInfo,
depthStencilState: depthStencilCreateInfo,
colorBlendState: colorBlendStateCreateInfo//,
//dynamicState: new PipelineDynamicStateCreateInfo(DynamicState.Viewport)
);
return(g.Context.Device.CreateGraphicsPipeline(pipelineCreateInfo));
}
public static RenderPass CreateRenderPass(Graphics g, bool clearDepthOnBeginPass)
{
var subpasses = new[]
{
new SubpassDescription(
new[] { new AttachmentReference(0, VulkanCore.ImageLayout.ColorAttachmentOptimal) },
new AttachmentReference(1, VulkanCore.ImageLayout.DepthStencilAttachmentOptimal))
};
var samples = g.Samples == 64 ? SampleCounts.Count64 :
g.Samples == 32 ? SampleCounts.Count32 :
g.Samples == 16 ? SampleCounts.Count16 :
g.Samples == 8 ? SampleCounts.Count8 :
g.Samples == 4 ? SampleCounts.Count4 :
g.Samples == 2 ? SampleCounts.Count2 :
SampleCounts.Count1;
var attachments = new[]
{
new AttachmentDescription
{
Format = g.Context.Swapchain.Format,
Samples = samples,
LoadOp = AttachmentLoadOp.Load,
StoreOp = AttachmentStoreOp.Store,
StencilLoadOp = AttachmentLoadOp.DontCare,
StencilStoreOp = AttachmentStoreOp.DontCare,
InitialLayout = VulkanCore.ImageLayout.Undefined,
FinalLayout = VulkanCore.ImageLayout.PresentSrcKhr
},
new AttachmentDescription
{
Format = g.Context.DepthStencilFormat,
Samples = samples,
LoadOp = clearDepthOnBeginPass ? AttachmentLoadOp.Clear : AttachmentLoadOp.Load,
StoreOp = AttachmentStoreOp.DontCare,
StencilLoadOp = AttachmentLoadOp.DontCare,
StencilStoreOp = AttachmentStoreOp.DontCare,
InitialLayout = VulkanCore.ImageLayout.Undefined,
FinalLayout = VulkanCore.ImageLayout.DepthStencilAttachmentOptimal
}
};
var dependencies = new[]
{
new SubpassDependency
{
SrcSubpass = Constant.SubpassExternal,
DstSubpass = 0,
SrcStageMask = PipelineStages.BottomOfPipe,
DstStageMask = PipelineStages.ColorAttachmentOutput,
SrcAccessMask = Accesses.MemoryRead,
DstAccessMask = Accesses.ColorAttachmentRead | Accesses.ColorAttachmentWrite,
DependencyFlags = Dependencies.ByRegion
},
new SubpassDependency
{
SrcSubpass = 0,
DstSubpass = Constant.SubpassExternal,
SrcStageMask = PipelineStages.ColorAttachmentOutput,
DstStageMask = PipelineStages.BottomOfPipe,
SrcAccessMask = Accesses.ColorAttachmentRead | Accesses.ColorAttachmentWrite,
DstAccessMask = Accesses.MemoryRead,
DependencyFlags = Dependencies.ByRegion
}
};
var createInfo = new RenderPassCreateInfo(subpasses, attachments, dependencies);
return(g.Context.Device.CreateRenderPass(createInfo));
}
