add from giga-device, new branch added

2025-08-21 16:51:25 +08:00
commit 43bbc06bbb
1296 changed files with 264186 additions and 0 deletions
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+//-----------------------------------------------------------------------
+// -----------------------------------------------------------------------
+// file="PlainGeometryMesh.cs"
+// Project: StgSharp
+// AuthorGroup: Nitload Space
+// Copyright (c) Nitload Space. All rights reserved.
+//     
+// Permission is hereby granted, free of charge, to any person 
+// obtaining a copy of this software and associated documentation 
+// files (the “Software”), to deal in the Software without restriction, 
+// including without limitation the rights to use, copy, modify, merge,
+// publish, distribute, sublicense, and/or sell copies of the Software, 
+// and to permit persons to whom the Software is furnished to do so, 
+// subject to the following conditions:
+//     
+// The above copyright notice and 
+// this permission notice shall be included in all copies 
+// or substantial portions of the Software.
+//     
+// THE SOFTWARE IS PROVIDED “AS IS”, 
+// WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, 
+// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 
+// IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, 
+// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 
+// ARISING FROM, OUT OF OR IN CONNECTION WITH 
+// THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+//     
+// -----------------------------------------------------------------------
+// -----------------------------------------------------------------------
+using StgSharp.Geometries;
+using StgSharp.Mathematics;
+
+using System;
+using System.Collections.Generic;
+using System.Diagnostics.CodeAnalysis;
+using System.Linq;
+using System.Runtime.InteropServices;
+using System.Text;
+
+namespace StgSharp.Graphics
+{
+    public class PlainGeometryMesh
+    {
+
+        private PlainGeometry _shape;
+        private TextureProvider _texture;
+
+        public PlainGeometryMesh([NotNull] PlainGeometry shape, [NotNull] TextureProvider texture)
+        {
+            if (shape.VertexCount > texture.TextureCoordinate.Length) {
+                throw new ArgumentException(
+                    paramName:nameof(texture),
+                    message:"Amount of texture coordination is too less");
+            }
+            _texture = texture;
+            _shape = shape;
+        }
+
+        // private Image _texture;
+
+        public PlainGeometryMesh(PlainGeometry shape, Image texture, Vec2[] texCoord)
+        {
+            ArgumentNullException.ThrowIfNull(shape);
+            ArgumentNullException.ThrowIfNull(texCoord);
+
+            if (shape.VertexCount > texCoord.Length) {
+                throw new ArgumentException(
+                    paramName:nameof(texCoord),
+                    message:"Amount of texture coordination is too less");
+            }
+            _texture = new TextureProvider(texture, texCoord);
+        }
+
+        public Vec4[] VertexArray => _shape.VertexStream;
+
+        public Image TextureImage
+        {
+            get => _texture.ProvideImage();
+            internal set => _texture.ReadImage(value);
+        }
+
+        public ReadOnlySpan<int> MeshIndices => _shape.VertexIndices;
+
+        public ReadOnlySpan<Vec4> TextureCoord => MemoryMarshal.Cast<Vec2, Vec4>(
+            _texture.TextureCoordinate);
+
+        public PlainGeometryMesh Resize(PlainGeometry newShape)
+        {
+            return new PlainGeometryMesh(newShape, _texture);
+        }
+
+    }
+}