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Commit Description:
Various UI improvements.
Commit Description:
Various UI improvements.
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FNA/src/Content/ContentReaders/VertexDeclarationReader.cs
54 lines | 1.5 KiB | text/x-csharp | CSharpLexer
54 lines | 1.5 KiB | text/x-csharp | CSharpLexer
| r0 | #region License | |||
| /* FNA - XNA4 Reimplementation for Desktop Platforms | ||||
| * Copyright 2009-2020 Ethan Lee and the MonoGame Team | ||||
| * | ||||
| * Released under the Microsoft Public License. | ||||
| * See LICENSE for details. | ||||
| */ | ||||
| #endregion | ||||
| #region Using Statements | ||||
| using Microsoft.Xna.Framework.Graphics; | ||||
| #endregion | ||||
| namespace Microsoft.Xna.Framework.Content | ||||
| { | ||||
| internal class VertexDeclarationReader : ContentTypeReader<VertexDeclaration> | ||||
| { | ||||
| #region Protected Read Method | ||||
| protected internal override VertexDeclaration Read( | ||||
| ContentReader reader, | ||||
| VertexDeclaration existingInstance | ||||
| ) { | ||||
| int vertexStride = reader.ReadInt32(); | ||||
| int elementCount = reader.ReadInt32(); | ||||
| VertexElement[] elements = new VertexElement[elementCount]; | ||||
| for (int i = 0; i < elementCount; i += 1) | ||||
| { | ||||
| int offset = reader.ReadInt32(); | ||||
| VertexElementFormat elementFormat = (VertexElementFormat) reader.ReadInt32(); | ||||
| VertexElementUsage elementUsage = (VertexElementUsage) reader.ReadInt32(); | ||||
| int usageIndex = reader.ReadInt32(); | ||||
| elements[i] = new VertexElement( | ||||
| offset, | ||||
| elementFormat, | ||||
| elementUsage, | ||||
| usageIndex | ||||
| ); | ||||
| } | ||||
| /* TODO: This process generates alot of duplicate VertexDeclarations | ||||
| * which in turn complicates other systems trying to share GPU resources | ||||
| * like DX11 vertex input layouts. | ||||
| * | ||||
| * We should consider caching vertex declarations here and returning | ||||
| * previously created declarations when they are in our cache. | ||||
| */ | ||||
| return new VertexDeclaration(vertexStride, elements); | ||||
| } | ||||
| #endregion | ||||
| } | ||||
| } | ||||
