public void CreateDeviceResources(GraphicsDevice gd, OutputDescription outputDescription, ColorSpaceHandling colorSpaceHandling)
{
_gd = gd;
_colorSpaceHandling = colorSpaceHandling;
ResourceFactory factory = gd.ResourceFactory;
_vertexBuffer = factory.CreateBuffer(new BufferDescription(10000, BufferUsage.VertexBuffer | BufferUsage.Dynamic));
_vertexBuffer.Name = "ImGui.NET Vertex Buffer";
_indexBuffer = factory.CreateBuffer(new BufferDescription(2000, BufferUsage.IndexBuffer | BufferUsage.Dynamic));
_indexBuffer.Name = "ImGui.NET Index Buffer";
RecreateFontDeviceTexture(gd);
_projMatrixBuffer = factory.CreateBuffer(new BufferDescription(64, BufferUsage.UniformBuffer | BufferUsage.Dynamic));
_projMatrixBuffer.Name = "ImGui.NET Projection Buffer";
byte[] vertexShaderBytes = LoadEmbeddedShaderCode(gd.ResourceFactory, "imgui-vertex", ShaderStages.Vertex, _colorSpaceHandling);
byte[] fragmentShaderBytes = LoadEmbeddedShaderCode(gd.ResourceFactory, "imgui-frag", ShaderStages.Fragment, _colorSpaceHandling);
_vertexShader = factory.CreateShader(new ShaderDescription(ShaderStages.Vertex, vertexShaderBytes, "VS"));
_fragmentShader = factory.CreateShader(new ShaderDescription(ShaderStages.Fragment, fragmentShaderBytes, "FS"));
VertexLayoutDescription[] vertexLayouts = new VertexLayoutDescription[]
{
new VertexLayoutDescription(
new VertexElementDescription("in_position", VertexElementSemantic.Position, VertexElementFormat.Float2),
new VertexElementDescription("in_texCoord", VertexElementSemantic.TextureCoordinate, VertexElementFormat.Float2),
new VertexElementDescription("in_color", VertexElementSemantic.Color, VertexElementFormat.Byte4_Norm))
};
_layout = factory.CreateResourceLayout(new ResourceLayoutDescription(
new ResourceLayoutElementDescription("ProjectionMatrixBuffer", ResourceKind.UniformBuffer, ShaderStages.Vertex),
new ResourceLayoutElementDescription("MainSampler", ResourceKind.Sampler, ShaderStages.Fragment)));
_textureLayout = factory.CreateResourceLayout(new ResourceLayoutDescription(
new ResourceLayoutElementDescription("MainTexture", ResourceKind.TextureReadOnly, ShaderStages.Fragment)));
GraphicsPipelineDescription pd = new GraphicsPipelineDescription(
BlendStateDescription.SingleAlphaBlend,
new DepthStencilStateDescription(false, false, ComparisonKind.Always),
new RasterizerStateDescription(FaceCullMode.None, PolygonFillMode.Solid, FrontFace.Clockwise, true, true),
PrimitiveTopology.TriangleList,
new ShaderSetDescription(
vertexLayouts,
new[] { _vertexShader, _fragmentShader },
new[]
{
new SpecializationConstant(0, gd.IsClipSpaceYInverted),
new SpecializationConstant(1, _colorSpaceHandling == ColorSpaceHandling.Legacy),
}),
new ResourceLayout[] { _layout, _textureLayout },
outputDescription,
ResourceBindingModel.Default);
_pipeline = factory.CreateGraphicsPipeline(ref pd);
_mainResourceSet = factory.CreateResourceSet(new ResourceSetDescription(_layout,
_projMatrixBuffer,
gd.PointSampler));
_fontTextureResourceSet = factory.CreateResourceSet(new ResourceSetDescription(_textureLayout, _fontTextureView));
}
public void CreateDeviceResources(GraphicsDevice gd, CommandList cl, OutputDescription outputDescription)
{
_gd = gd;
ResourceFactory factory = gd.ResourceFactory;
_vertexBuffer = factory.CreateVertexBuffer(new BufferDescription(10000, true));
_indexBuffer = factory.CreateIndexBuffer(new IndexBufferDescription(2000, IndexFormat.UInt16, true));
RecreateFontDeviceTexture(gd, cl);
_projMatrixBuffer = factory.CreateUniformBuffer(new BufferDescription(64));
byte[] vertexShaderBytes = LoadEmbeddedShaderCode(gd.ResourceFactory, "imgui-vertex", ShaderStages.Vertex);
byte[] fragmentShaderBytes = LoadEmbeddedShaderCode(gd.ResourceFactory, "imgui-frag", ShaderStages.Fragment);
_vertexShader = factory.CreateShader(new ShaderDescription(ShaderStages.Vertex, vertexShaderBytes));
_fragmentShader = factory.CreateShader(new ShaderDescription(ShaderStages.Fragment, fragmentShaderBytes));
VertexLayoutDescription[] vertexLayouts = new VertexLayoutDescription[]
{
new VertexLayoutDescription(
new VertexElementDescription("in_position", VertexElementSemantic.Position, VertexElementFormat.Float2),
new VertexElementDescription("in_texCoord", VertexElementSemantic.TextureCoordinate, VertexElementFormat.Float2),
new VertexElementDescription("in_color", VertexElementSemantic.Color, VertexElementFormat.Byte4))
};
ShaderStageDescription[] shaderStages = new ShaderStageDescription[]
{
new ShaderStageDescription(ShaderStages.Vertex, _vertexShader, "VS"),
new ShaderStageDescription(ShaderStages.Fragment, _fragmentShader, "FS")
};
_layout = factory.CreateResourceLayout(new ResourceLayoutDescription(
new ResourceLayoutElementDescription("ProjectionMatrixBuffer", ResourceKind.Uniform, ShaderStages.Vertex),
new ResourceLayoutElementDescription("FontTexture", ResourceKind.Texture, ShaderStages.Fragment),
new ResourceLayoutElementDescription("FontSampler", ResourceKind.Sampler, ShaderStages.Fragment)));
PipelineDescription pd = new PipelineDescription(
BlendStateDescription.SingleAlphaBlend,
new DepthStencilStateDescription(false, false, DepthComparisonKind.Always),
new RasterizerStateDescription(FaceCullMode.None, TriangleFillMode.Solid, FrontFace.Clockwise, false, true),
PrimitiveTopology.TriangleList,
new ShaderSetDescription(vertexLayouts, shaderStages),
new ResourceLayout[] { _layout },
outputDescription);
_pipeline = factory.CreatePipeline(ref pd);
_resourceSet = factory.CreateResourceSet(new ResourceSetDescription(_layout,
_projMatrixBuffer,
_fontTextureView,
gd.PointSampler));
}
