Files
stgsharp/StgSharp.Graphics/PlainGeometryMesh.cs
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2026-02-28 00:54:32 +08:00

102 lines
3.5 KiB
C#

//-----------------------------------------------------------------------
// -----------------------------------------------------------------------
// file="PlainGeometryMesh"
// Project: StgSharp
// AuthorGroup: Nitload
// Copyright (c) Nitload. 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 StgSharp.Mathematics.Graphics;
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);
}
}
}