stgsharp/内核源代码/StgSharp/Graphics/OpenGL/ShaderEdit/Uniform.cs

//-----------------------------------------------------------------------
//-----------------------------------------------------------------------
//     file="Uniform.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.Graphics;
using StgSharp.Math;

using System;
using System.Collections.Generic;
using System.Diagnostics.CodeAnalysis;
using System.Linq;
using System.Runtime.CompilerServices;
using System.Runtime.InteropServices;
using System.Text;

namespace StgSharp.Graphics.OpenGL
{
    public class Uniform
    {

        internal GlHandle id;

        public GlHandle Handle
        {
            get => id;
        }

    }

    public sealed class Uniform<T> : Uniform where T: struct
    {

        internal Uniform() { }

        internal unsafe Uniform( GlHandle id )
        {
            this.id = id;
        }

        internal static Uniform<T> FromHandle( GlHandle handle )
        {
            return new Uniform<T> { id = handle };
        }

    }

    public sealed class Uniform<T, U> : Uniform where T: struct where U: struct
    {

        internal Uniform() { }

        internal unsafe Uniform( GlHandle id )
        {
            this.id = id;
        }

        internal static Uniform<T, U> FromHandle( GlHandle handle )
        {
            return new Uniform<T, U> { id = handle };
        }

    }

    public sealed class Uniform<T, U, V> : Uniform where T: struct
        where U: struct
        where V: struct
    {

        internal Uniform() { }

        internal unsafe Uniform( GlHandle id )
        {
            this.id = id;
        }

        internal static Uniform<T, U, V> FromHandle( GlHandle handle )
        {
            return new Uniform<T, U, V> { id = handle };
        }

    }

    public sealed class Uniform<T, U, V, W> : Uniform where T: struct
        where U: struct
        where V: struct
        where W: struct
    {

        internal Uniform() { }

        internal unsafe Uniform( GlHandle id )
        {
            this.id = id;
        }

        internal static Uniform<T, U, V, W> FromHandle( GlHandle handle )
        {
            return new Uniform<T, U, V, W> { id = handle };
        }

    }

    public unsafe partial class OpenGLFunction
    {

        [MethodImpl( MethodImplOptions.AggressiveInlining )]
        public void SetUniformValue( [NotNull] Uniform<Matrix44> uniform, Matrix44 mat )
        {
            Matrix44 temp = mat;
            Context.glUniformMatrix4fv(
                uniform.id.SignedValue, 1, false, ( float* )&temp );
        }

        [MethodImpl( MethodImplOptions.AggressiveInlining )]
        public void SetUniformValue(
            [NotNull]Uniform<float, float, float, float> uniform,
            Vec4 vec )
        {
            Vec4 temp = vec;
            Context.glUniform1fv( uniform.id.SignedValue, 4, &temp.reg );
        }

        [MethodImpl( MethodImplOptions.AggressiveInlining )]
        public void SetUniformValue( [NotNull]Uniform<Vec4> uniform, Vec4 vec )
        {
            Vec4 temp = vec;
            Context.glUniform1fv( uniform.id.SignedValue, 4, &temp.reg );
        }

        [MethodImpl( MethodImplOptions.AggressiveInlining )]
        public void SetUniformValue( [NotNull]Uniform<float> uniform, float v0 )
        {
            Context.glUniform1f( uniform.id.SignedValue, v0 );
        }

        [MethodImpl( MethodImplOptions.AggressiveInlining )]
        public void SetUniformValue( [NotNull]Uniform<int> uniform, int i0 )
        {
            Context.glUniform1i( uniform.id.SignedValue, i0 );
        }

        [MethodImpl( MethodImplOptions.AggressiveInlining )]
        public void SetUniformValue(
            [NotNull] Uniform<float, float> uniform,
            float v0,
            float v1 )
        {
            Context.glUniform2f( uniform.id.SignedValue, v0, v1 );
        }

        [MethodImpl( MethodImplOptions.AggressiveInlining )]
        public void SetUniformValue(
            [NotNull] Uniform<float, float, float> uniform,
            float v0,
            float v1,
            float v2 )
        {
            Context.glUniform3f( uniform.id.SignedValue, v0, v1, v2 );
        }

        [MethodImpl( MethodImplOptions.AggressiveInlining )]
        public void SetUniformValue(
            [NotNull] Uniform<float, float, float, float> uniform,
            float v0,
            float v1,
            float v2,
            float v3 )
        {
            Context.glUniform4f( uniform.id.SignedValue, v0, v1, v2, v3 );
        }

    }
}