forked from mirror/DotRecast
81 lines
2.6 KiB
C#
81 lines
2.6 KiB
C#
/*
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Copyright (c) 2009-2010 Mikko Mononen memon@inside.org
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recast4j copyright (c) 2015-2019 Piotr Piastucki piotr@jtilia.org
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DotRecast Copyright (c) 2023 Choi Ikpil ikpil@naver.com
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any damages
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arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it
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freely, subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must not
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claim that you wrote the original software. If you use this software
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in a product, an acknowledgment in the product documentation would be
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appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and must not be
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misrepresented as being the original software.
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3. This notice may not be removed or altered from any source distribution.
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*/
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using Silk.NET.OpenGL;
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namespace DotRecast.Recast.Demo.Draw;
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public class GLCheckerTexture
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{
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private readonly GL _gl;
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private uint m_texId;
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public GLCheckerTexture(GL gl)
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{
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_gl = gl;
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}
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public void Release()
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{
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if (m_texId != 0)
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{
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_gl.DeleteTextures(1, m_texId);
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}
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}
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public void Bind()
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{
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if (m_texId == 0)
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{
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// Create checker pattern.
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int col0 = DebugDraw.DuRGBA(215, 215, 215, 255);
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int col1 = DebugDraw.DuRGBA(255, 255, 255, 255);
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uint TSIZE = 64;
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int[] data = new int[TSIZE * TSIZE];
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_gl.GenTextures(1, out m_texId);
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_gl.BindTexture(GLEnum.Texture2D, m_texId);
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int level = 0;
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uint size = TSIZE;
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while (size > 0)
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{
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for (int y = 0; y < size; ++y)
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{
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for (int x = 0; x < size; ++x)
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{
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data[x + y * size] = (x == 0 || y == 0) ? col0 : col1;
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}
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}
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_gl.TexImage2D<int>(GLEnum.Texture2D, level, InternalFormat.Rgba, size, size, 0, GLEnum.Rgba, GLEnum.UnsignedByte, data);
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size /= 2;
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level++;
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}
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_gl.TexParameterI(GLEnum.Texture2D, GLEnum.TextureMinFilter, (uint)GLEnum.LinearMipmapNearest);
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_gl.TexParameterI(GLEnum.Texture2D, GLEnum.TextureMagFilter, (uint)GLEnum.Linear);
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}
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else
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{
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_gl.BindTexture(GLEnum.Texture2D, m_texId);
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}
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}
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} |