// TODO: private protected /// <summary> /// </summary> /// <param name="description"></param> /// <returns></returns> protected abstract DeviceBuffer CreateBufferCore(ref BufferDescription description);
unsafe public CommandList BuildCommandList(GraphicsDevice graphicsDevice, Framebuffer framebuffer)
{
ResourceFactory factory = graphicsDevice.ResourceFactory;
Shader _vsShader = null;
Shader _psShader = null;
DeviceBuffer _vertexBuffer = null;
Pipeline _pipeline = null;
Veldrid.CommandList _commandList = null;
try
{
#region --- try
#region --- shaders
{
string _vsname = null;
string _psname = null;
switch (graphicsDevice.BackendType)
{
case GraphicsBackend.Direct3D11:
_vsname = "Test_Colored2DVertices.vs";
_psname = "Test_Colored2DVertices.ps";
break;
case GraphicsBackend.Metal:
_vsname = "Test_Colored2DVertices_vs.msl";
_psname = "Test_Colored2DVertices_ps.msl";
break;
case GraphicsBackend.Vulkan:
_vsname = "Test_Colored2DVertices_vs.spv";
_psname = "Test_Colored2DVertices_ps.spv";
break;
case GraphicsBackend.OpenGL:
_vsname = "Test_Colored2DVertices_vs.glsl";
_psname = "Test_Colored2DVertices_ps.glsl";
break;
case GraphicsBackend.OpenGLES:
_vsname = "Test_Colored2DVertices_vs_es.glsl";
_psname = "Test_Colored2DVertices_ps_es.glsl";
break;
}
string _vs = loadResourceString(Assembly.GetExecutingAssembly(), _vsname);
if (string.IsNullOrEmpty(_vs))
{
return(null);
}
string _ps = loadResourceString(Assembly.GetExecutingAssembly(), _psname);
if (string.IsNullOrEmpty(_ps))
{
return(null);
}
ShaderDescription vertexShaderDesc = new ShaderDescription(
ShaderStages.Vertex,
Encoding.UTF8.GetBytes(_vs),
"_VertexShader");
ShaderDescription fragmentShaderDesc = new ShaderDescription(
ShaderStages.Fragment,
Encoding.UTF8.GetBytes(_ps),
"_PixelShader");
_vsShader = factory.CreateShader(vertexShaderDesc);
_psShader = factory.CreateShader(fragmentShaderDesc);
}
#endregion
VertexLayoutDescription _vertexLayout = new VertexLayoutDescription();
int _vertexCount;
#region --- _vertexBuffer + _vertexLayout
{
int _count = 10;
byte[] _data = Build_2DColoredQuads_16SNorm_8UNorm(_count, _count, out _vertexCount);
//
Veldrid.BufferDescription vbDescription = new Veldrid.BufferDescription(
(uint)_data.Length,
BufferUsage.VertexBuffer);
_vertexBuffer = factory.CreateBuffer(vbDescription);
fixed(byte *_pdata = _data)
{
graphicsDevice.UpdateBuffer(_vertexBuffer, bufferOffsetInBytes: 0, (IntPtr)_pdata, (uint)_data.Length);
}
_vertexLayout = new VertexLayoutDescription(
new VertexElementDescription("Position",
VertexElementSemantic.Position,
VertexElementFormat.Short2_Norm,
offset: 0),
new VertexElementDescription("Color",
VertexElementSemantic.Color,
VertexElementFormat.Byte4_Norm,
offset: 2 * sizeof(short)));
}
#endregion
#region --- pipeline
{
GraphicsPipelineDescription _pipelineDescription = new GraphicsPipelineDescription();
_pipelineDescription.BlendState = Veldrid.BlendStateDescription.SingleOverrideBlend;
_pipelineDescription.DepthStencilState = new Veldrid.DepthStencilStateDescription(
depthTestEnabled: false,
depthWriteEnabled: false,
comparisonKind: ComparisonKind.LessEqual);
_pipelineDescription.RasterizerState = new Veldrid.RasterizerStateDescription(
cullMode: FaceCullMode.None,
fillMode: PolygonFillMode.Solid,
frontFace: FrontFace.Clockwise,
depthClipEnabled: true, // Android ?
scissorTestEnabled: false);
_pipelineDescription.PrimitiveTopology = Veldrid.PrimitiveTopology.TriangleList;
_pipelineDescription.ResourceLayouts = System.Array.Empty <ResourceLayout>();
_pipelineDescription.ShaderSet = new ShaderSetDescription(
vertexLayouts: new VertexLayoutDescription[] { _vertexLayout },
shaders: new Shader[] { _vsShader, _psShader });
_pipelineDescription.Outputs = framebuffer.OutputDescription; // _offscreenFB.OutputDescription;
_pipeline = factory.CreateGraphicsPipeline(_pipelineDescription);
}
#endregion
#region --- commandList
{
_commandList = factory.CreateCommandList();
// Begin() must be called before commands can be issued.
_commandList.Begin();
_commandList.SetPipeline(_pipeline);
// We want to render directly to the output window.
_commandList.SetFramebuffer(framebuffer);
_commandList.SetFullViewports();
_commandList.ClearColorTarget(0, RgbaFloat.DarkRed);
// Set all relevant state to draw our quad.
_commandList.SetVertexBuffer(0, _vertexBuffer);
_commandList.Draw(vertexCount: (uint)_vertexCount);
// End() must be called before commands can be submitted for execution.
_commandList.End();
}
#endregion
CommandList vret = _commandList;
_commandList = null;
return(vret);
#endregion
}
catch (Exception e)
{
return(null);
}
finally
{
_vsShader?.Dispose();
_psShader?.Dispose();
_vertexBuffer?.Dispose();
_pipeline?.Dispose();
_commandList?.Dispose();
}
}
/// <summary> /// Creates a new <see cref="DeviceBuffer"/>. /// </summary> /// <param name="description">The desired properties of the created object.</param> /// <returns>A new <see cref="DeviceBuffer"/>.</returns> public DeviceBuffer CreateBuffer(BufferDescription description) => CreateBuffer(ref description);
