ydeng/recrownedgtk
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Renamed and added an utility function to get basic attributes.

Browse Source
This commit is contained in:
Harrison Deng 2020-02-17 02:28:15 -05:00
parent 115608b2a5
commit 0cee4c3ffe
2 changed files with 58 additions and 39 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

39
RecrownedGTK/Graphics/VertexArrayHandle.cs
View File

@ -1,39 +0,0 @@
using System;
using OpenTK.Graphics.OpenGL;
namespace RecrownedGTK.Graphics {
public class VertexArrayHandle : IDisposable {
private bool disposed;
private int handle;
private bool begun;
public VertexArrayHandle() {
handle = GL.GenVertexArray();
}
public void Begin() {
if (begun) throw new InvalidOperationException("The VertexArrayHandle has already been started.");
GL.BindVertexArray(handle);
begun = true;
}
public void End() {
if (!begun) throw new InvalidOperationException("The VertexArrayHandle has never been started.");
GL.BindVertexArray(0);
begun = false;
}
public void Dispose() {
Dispose(true);
GC.SuppressFinalize(this);
}
protected virtual void Dispose(bool disposing) {
if (disposed) return;
if (disposing) {
}
GL.BindVertexArray(0);
GL.DeleteVertexArray(handle);
disposed = true;
}
~VertexArrayHandle() {
Dispose(false);
}
}
}

58
RecrownedGTK/Graphics/VertexAttributesHandle.cs Normal file
View File

@ -0,0 +1,58 @@
using System;
using OpenTK.Graphics.OpenGL;
using RecrownedGTK.Graphics.Render.Shader;
namespace RecrownedGTK.Graphics {
public class VertexAttributesHandle : IDisposable {
private bool disposed;
private int handle;
private bool begun;
public VertexAttributesHandle() {
handle = GL.GenVertexArray();
}
public void Begin() {
if (begun) throw new InvalidOperationException("The VertexArrayHandle has already been started.");
GL.BindVertexArray(handle);
begun = true;
}
public void End() {
if (!begun) throw new InvalidOperationException("The VertexArrayHandle has never been started.");
GL.BindVertexArray(0);
begun = false;
}
/// <summary>
/// Creates a basic vertex attributes object handle that takes in vertices, texture coordinates, and a color.
/// </summary>
/// <param name="shader">The shader program used. Default is the one created from <see cref="RecrownedGTK.Graphics.Render.Shader.Shader.CreateBasicShader"/>.</param>
/// <param name="positionAttribName">The name of the attribute for the vertex's position in the shader. Default is "aPosition".</param>
/// <param name="textureAttribName">The name of the attribute for the texture's coordinate. Default is "aTexture".</param>
/// <param name="colorAttribName">The name of the attribute for color mixture. Default is "aColor".</param>
/// <returns>The built <see cref="RecrownedGTK.Graphics.VertexAttributesHandle"/>.</returns>
public static VertexAttributesHandle CreateBasicVA(Shader shader = null, string positionAttribName = "aPosition", string textureAttribName = "aTexture", string colorAttribName = "aColor") {
if (shader == null) shader = Shader.CreateBasicShader();
VertexAttributesHandle vertexAttribs = new VertexAttributesHandle();
GL.VertexAttribPointer(shader.GetAttribLocation(positionAttribName), 3, VertexAttribPointerType.Float, false, 9 * sizeof(float), 0);
GL.VertexAttribPointer(shader.GetAttribLocation(textureAttribName), 2, VertexAttribPointerType.Float, false, 9 * sizeof(float), 3 * sizeof(float));
GL.VertexAttribPointer(shader.GetAttribLocation(colorAttribName), 4, VertexAttribPointerType.Float, false, 9 * sizeof(float), 5 * sizeof(float));
vertexAttribs.End();
return vertexAttribs;
}
public void Dispose() {
Dispose(true);
GC.SuppressFinalize(this);
}
protected virtual void Dispose(bool disposing) {
if (disposed) return;
if (disposing) {
}
GL.BindVertexArray(0);
GL.DeleteVertexArray(handle);
disposed = true;
}
~VertexAttributesHandle() {
Dispose(false);
}
}
}