338 lines
14 KiB
C#
338 lines
14 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Drawing;
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using System.Threading.Tasks;
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using OpenTK.Graphics.OpenGL;
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using System.Runtime.InteropServices;
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namespace Switch_Toolbox.Library.Rendering
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{
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//Parts roughly based on this helpful gl wrapper https://github.com/ScanMountGoat/SFGraphics/blob/89f96b754e17078153315a259baef3859ef5984d/Projects/SFGraphics/GLObjects/Textures/Texture.cs
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public class RenderableTex
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{
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public int width, height;
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public int TexID;
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public PixelInternalFormat pixelInternalFormat;
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public PixelFormat pixelFormat;
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public PixelType pixelType = PixelType.UnsignedByte;
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public TextureTarget TextureTarget = TextureTarget.Texture2D;
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public bool GLInitialized = false;
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public int ImageSize;
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public bool IsCubeMap = false;
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public TextureWrapMode TextureWrapS
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{
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get { return textureWrapS; }
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set
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{
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textureWrapS = value;
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SetTextureParameter(TextureParameterName.TextureWrapS, (int)value);
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}
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}
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public TextureWrapMode TextureWrapT
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{
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get { return textureWrapT; }
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set
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{
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textureWrapT = value;
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SetTextureParameter(TextureParameterName.TextureWrapT, (int)value);
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}
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}
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public TextureWrapMode TextureWrapR
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{
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get { return textureWrapR; }
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set
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{
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textureWrapR = value;
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SetTextureParameter(TextureParameterName.TextureWrapR, (int)value);
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}
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}
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public TextureMinFilter TextureMinFilter
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{
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get { return textureMinFilter; }
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set
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{
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textureMinFilter = value;
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SetTextureParameter(TextureParameterName.TextureMinFilter, (int)value);
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}
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}
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public TextureMagFilter TextureMagFilter
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{
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get { return textureMagFilter; }
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set
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{
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textureMagFilter = value;
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SetTextureParameter(TextureParameterName.TextureMinFilter, (int)value);
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}
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}
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private TextureWrapMode textureWrapS = TextureWrapMode.Repeat;
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private TextureWrapMode textureWrapT = TextureWrapMode.Repeat;
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private TextureWrapMode textureWrapR = TextureWrapMode.Clamp;
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private TextureMinFilter textureMinFilter = TextureMinFilter.Linear;
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private TextureMagFilter textureMagFilter = TextureMagFilter.Linear;
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public void Dispose()
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{
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GL.DeleteTexture(TexID);
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}
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public void SetTextureParameter(TextureParameterName param, int value)
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{
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Bind();
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GL.TexParameter(TextureTarget, param, value);
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}
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public void LoadOpenGLTexture(STGenericTexture GenericTexture, int ArrayStartIndex = 0)
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{
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if (!Runtime.OpenTKInitialized || GLInitialized || Runtime.UseLegacyGL)
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return;
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width = (int)GenericTexture.Width;
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height = (int)GenericTexture.Height;
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if (GenericTexture.ArrayCount == 0)
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GenericTexture.ArrayCount = 1;
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List<byte[]> ImageData = new List<byte[]>();
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for (int i = 0; i < GenericTexture.ArrayCount; i++)
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{
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if (i >= ArrayStartIndex && i <= ArrayStartIndex + 6) //Only load up to 6 faces
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ImageData.Add(GenericTexture.GetImageData(i, 0));
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}
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if (ImageData.Count == 0 || ImageData[0].Length == 0)
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throw new Exception("Data is empty!");
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IsCubeMap = ImageData.Count == 6;
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ImageSize = ImageData[0].Length;
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if (IsCubeMap)
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{
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TextureTarget = TextureTarget.TextureCubeMap;
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TextureWrapS = TextureWrapMode.Clamp;
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TextureWrapT = TextureWrapMode.Clamp;
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TextureWrapR = TextureWrapMode.Clamp;
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TextureMinFilter = TextureMinFilter.LinearMipmapLinear;
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TextureMagFilter = TextureMagFilter.Linear;
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}
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switch (GenericTexture.Format)
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{
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case TEX_FORMAT.BC1_UNORM:
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pixelInternalFormat = PixelInternalFormat.CompressedRgbaS3tcDxt1Ext;
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break;
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case TEX_FORMAT.BC1_UNORM_SRGB:
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pixelInternalFormat = PixelInternalFormat.CompressedRgbaS3tcDxt1Ext;
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break;
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case TEX_FORMAT.BC2_UNORM:
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pixelInternalFormat = PixelInternalFormat.CompressedRgbaS3tcDxt3Ext;
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break;
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case TEX_FORMAT.BC2_UNORM_SRGB:
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pixelInternalFormat = PixelInternalFormat.CompressedRgbaS3tcDxt3Ext;
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break;
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case TEX_FORMAT.BC3_UNORM:
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pixelInternalFormat = PixelInternalFormat.CompressedRgbaS3tcDxt5Ext;
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break;
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case TEX_FORMAT.BC3_UNORM_SRGB:
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pixelInternalFormat = PixelInternalFormat.CompressedRgbaS3tcDxt5Ext;
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break;
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case TEX_FORMAT.BC4_UNORM:
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case TEX_FORMAT.BC4_SNORM:
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//Convert to rgb to prevent red output
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//While shaders could prevent this, converting is easier and works fine across all editors
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if (Runtime.UseDirectXTexDecoder)
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{
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ImageData.Add(STGenericTexture.DecodeBlock(ImageData[0],
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GenericTexture.Width,
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GenericTexture.Height,
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GenericTexture.Format,
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GenericTexture.PlatformSwizzle));
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pixelInternalFormat = PixelInternalFormat.Rgba;
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pixelFormat = OpenTK.Graphics.OpenGL.PixelFormat.Rgba;
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}
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else
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{
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pixelInternalFormat = PixelInternalFormat.CompressedRedRgtc1;
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pixelInternalFormat = PixelInternalFormat.CompressedSignedRedRgtc1;
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}
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break;
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case TEX_FORMAT.BC5_SNORM:
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pixelInternalFormat = PixelInternalFormat.CompressedRgRgtc2;
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ImageData.Add(DDSCompressor.DecompressBC5(ImageData[0],
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(int)GenericTexture.Width, (int)GenericTexture.Height, true, true));
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pixelInternalFormat = PixelInternalFormat.Rgba;
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pixelFormat = OpenTK.Graphics.OpenGL.PixelFormat.Rgba;
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break;
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case TEX_FORMAT.BC5_UNORM:
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pixelInternalFormat = PixelInternalFormat.CompressedRgRgtc2;
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break;
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case TEX_FORMAT.BC6H_UF16:
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pixelInternalFormat = PixelInternalFormat.CompressedRgbBptcUnsignedFloat;
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break;
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case TEX_FORMAT.BC6H_SF16:
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pixelInternalFormat = PixelInternalFormat.CompressedRgbBptcSignedFloat;
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break;
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case TEX_FORMAT.BC7_UNORM:
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pixelInternalFormat = PixelInternalFormat.CompressedRgbaBptcUnorm;
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break;
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case TEX_FORMAT.BC7_UNORM_SRGB:
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pixelInternalFormat = PixelInternalFormat.CompressedSrgbAlphaBptcUnorm;
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break;
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case TEX_FORMAT.R8G8B8A8_UNORM:
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pixelInternalFormat = PixelInternalFormat.Rgba;
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pixelFormat = OpenTK.Graphics.OpenGL.PixelFormat.Rgba;
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break;
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case TEX_FORMAT.R8G8B8A8_UNORM_SRGB:
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pixelInternalFormat = PixelInternalFormat.Rgba;
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pixelFormat = OpenTK.Graphics.OpenGL.PixelFormat.Rgba;
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break;
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default:
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if (Runtime.UseDirectXTexDecoder)
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{
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ImageData.Add(STGenericTexture.DecodeBlock(ImageData[0],
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GenericTexture.Width,
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GenericTexture.Height,
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GenericTexture.Format,
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GenericTexture.PlatformSwizzle));
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pixelInternalFormat = PixelInternalFormat.Rgba;
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pixelFormat = OpenTK.Graphics.OpenGL.PixelFormat.Rgba;
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}
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break;
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}
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GLInitialized = true;
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TexID = GenerateOpenGLTexture(this, ImageData);
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ImageData.Clear();
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}
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public static int GenerateOpenGLTexture(RenderableTex t, List<byte[]> ImageData)
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{
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if (!t.GLInitialized)
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return -1;
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int texID = GL.GenTexture();
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GL.BindTexture(t.TextureTarget, texID);
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if (t.IsCubeMap)
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{
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if (t.pixelInternalFormat != PixelInternalFormat.Rgba)
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{
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t.LoadCompressedMips(TextureTarget.TextureCubeMapPositiveX, ImageData[0]);
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t.LoadCompressedMips(TextureTarget.TextureCubeMapNegativeX, ImageData[1]);
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t.LoadCompressedMips(TextureTarget.TextureCubeMapPositiveY, ImageData[2]);
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t.LoadCompressedMips(TextureTarget.TextureCubeMapNegativeY, ImageData[3]);
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t.LoadCompressedMips(TextureTarget.TextureCubeMapPositiveZ, ImageData[4]);
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t.LoadCompressedMips(TextureTarget.TextureCubeMapNegativeZ, ImageData[5]);
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}
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else
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{
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t.LoadUncompressedMips(TextureTarget.TextureCubeMapPositiveX, ImageData[0]);
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t.LoadUncompressedMips(TextureTarget.TextureCubeMapNegativeX, ImageData[1]);
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t.LoadUncompressedMips(TextureTarget.TextureCubeMapPositiveY, ImageData[2]);
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t.LoadUncompressedMips(TextureTarget.TextureCubeMapNegativeY, ImageData[3]);
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t.LoadUncompressedMips(TextureTarget.TextureCubeMapPositiveZ, ImageData[4]);
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t.LoadUncompressedMips(TextureTarget.TextureCubeMapNegativeZ, ImageData[5]);
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}
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}
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else
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{
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if (t.pixelInternalFormat != PixelInternalFormat.Rgba)
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{
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GL.CompressedTexImage2D<byte>(TextureTarget.Texture2D, 0, (InternalFormat)t.pixelInternalFormat,
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t.width, t.height, 0, getImageSize(t), ImageData[0]);
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//Debug.WriteLine(GL.GetError());
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}
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else
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{
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GL.TexImage2D<byte>(TextureTarget.Texture2D, 0, t.pixelInternalFormat, t.width, t.height, 0,
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t.pixelFormat, PixelType.UnsignedByte, ImageData[0]);
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}
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GL.GenerateMipmap(GenerateMipmapTarget.Texture2D);
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}
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return texID;
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}
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private void LoadUncompressedMips(TextureTarget textureTarget, byte[] ImageData, int MipLevel = 0)
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{
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GL.TexImage2D<byte>(textureTarget, MipLevel, pixelInternalFormat, width, height, 0,
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pixelFormat, PixelType.UnsignedByte, ImageData);
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GL.GenerateMipmap((GenerateMipmapTarget)textureTarget);
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}
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private void LoadCompressedMips(TextureTarget textureTarget, byte[] ImageData, int MipLevel = 0)
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{
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GL.CompressedTexImage2D<byte>(textureTarget, MipLevel, (InternalFormat)pixelInternalFormat,
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width, height, 0, getImageSize(this), ImageData);
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GL.GenerateMipmap((GenerateMipmapTarget)textureTarget);
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}
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public void Bind()
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{
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GL.BindTexture(TextureTarget, TexID);
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}
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private static int getImageSize(RenderableTex t)
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{
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switch (t.pixelInternalFormat)
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{
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case PixelInternalFormat.CompressedRgbaS3tcDxt1Ext:
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case PixelInternalFormat.CompressedSrgbAlphaS3tcDxt1Ext:
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case PixelInternalFormat.CompressedRedRgtc1:
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case PixelInternalFormat.CompressedSignedRedRgtc1:
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return (t.width * t.height / 2);
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case PixelInternalFormat.CompressedRgbaS3tcDxt3Ext:
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case PixelInternalFormat.CompressedSrgbAlphaS3tcDxt3Ext:
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case PixelInternalFormat.CompressedRgbaS3tcDxt5Ext:
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case PixelInternalFormat.CompressedSrgbAlphaS3tcDxt5Ext:
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case PixelInternalFormat.CompressedSignedRgRgtc2:
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case PixelInternalFormat.CompressedRgRgtc2:
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case PixelInternalFormat.CompressedRgbaBptcUnorm:
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case PixelInternalFormat.CompressedSrgbAlphaBptcUnorm:
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return (t.width * t.height);
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case PixelInternalFormat.Rgba:
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return t.ImageSize;
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default:
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return t.ImageSize;
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}
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}
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public unsafe Bitmap ToBitmap()
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{
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Bitmap bitmap = new Bitmap(width, height);
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System.Drawing.Imaging.BitmapData bitmapData = bitmap.LockBits(new Rectangle(0, 0, width, height), System.Drawing.Imaging.ImageLockMode.WriteOnly, System.Drawing.Imaging.PixelFormat.Format32bppArgb);
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GL.BindTexture(TextureTarget.Texture2D, TexID);
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GL.GetTexImage(TextureTarget.Texture2D, 0, OpenTK.Graphics.OpenGL.PixelFormat.Bgra, PixelType.UnsignedByte, bitmapData.Scan0);
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bitmap.UnlockBits(bitmapData);
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return bitmap;
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}
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public static unsafe Bitmap GLTextureToBitmap(RenderableTex t)
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{
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Bitmap bitmap = new Bitmap(t.width, t.height);
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System.Drawing.Imaging.BitmapData bitmapData = bitmap.LockBits(new Rectangle(0, 0, t.width, t.height), System.Drawing.Imaging.ImageLockMode.WriteOnly, System.Drawing.Imaging.PixelFormat.Format32bppArgb);
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GL.BindTexture(TextureTarget.Texture2D, t.TexID);
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GL.GetTexImage(TextureTarget.Texture2D, 0, OpenTK.Graphics.OpenGL.PixelFormat.Bgra, PixelType.UnsignedByte, bitmapData.Scan0);
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bitmap.UnlockBits(bitmapData);
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return bitmap;
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}
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}
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}
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