public static int LoadTextureForModelGLB(byte[] rawTextureData)
{
int texID;
if (rawTextureData[0] == 0x44 && rawTextureData[1] == 0x44 && rawTextureData[2] == 0x53)
{
HelperDDS2.TryLoadDDS(rawTextureData, false, out texID, out int width, out int height);
return(texID);
}
try
{
using (MemoryStream ms = new MemoryStream(rawTextureData))
{
Bitmap image = new Bitmap(ms);
if (image == null)
{
HelperGeneral.ShowErrorAndQuit("HelperTexture::LoadTextureForModelGLB()", "Could not load image file from GLB!");
return(-1);
}
texID = GL.GenTexture();
GL.BindTexture(TextureTarget.Texture2D, texID);
BitmapData data = null;
if (image.PixelFormat == System.Drawing.Imaging.PixelFormat.Format32bppArgb)
{
data = image.LockBits(new Rectangle(0, 0, image.Width, image.Height), ImageLockMode.ReadOnly, System.Drawing.Imaging.PixelFormat.Format32bppArgb);
GL.TexImage2D(TextureTarget.Texture2D, 0, PixelInternalFormat.Rgba, data.Width, data.Height, 0,
OpenTK.Graphics.OpenGL4.PixelFormat.Bgra, PixelType.UnsignedByte, data.Scan0);
}
else
{
data = image.LockBits(new Rectangle(0, 0, image.Width, image.Height), ImageLockMode.ReadOnly, System.Drawing.Imaging.PixelFormat.Format24bppRgb);
GL.TexImage2D(TextureTarget.Texture2D, 0, PixelInternalFormat.Rgb, data.Width, data.Height, 0,
OpenTK.Graphics.OpenGL4.PixelFormat.Bgr, PixelType.UnsignedByte, data.Scan0);
}
GL.TexParameter(TextureTarget.Texture2D, (TextureParameterName)OpenTK.Graphics.OpenGL.ExtTextureFilterAnisotropic.TextureMaxAnisotropyExt, GLWindow.CurrentWindow.AnisotropicFiltering);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureMinFilter, (int)TextureMinFilter.LinearMipmapLinear);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureMagFilter, (int)TextureMagFilter.Linear);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureWrapS, (int)TextureWrapMode.Repeat);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureWrapT, (int)TextureWrapMode.Repeat);
GL.GenerateMipmap(GenerateMipmapTarget.Texture2D);
int mipMapCount = GetMaxMipMapLevels(data.Width, data.Height);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureBaseLevel, 0);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureMaxLevel, Math.Max(0, mipMapCount - 2));
image.UnlockBits(data);
image.Dispose();
GL.BindTexture(TextureTarget.Texture2D, 0);
}
}
catch (Exception ex)
{
HelperGeneral.ShowErrorAndQuit("HelperTexture::LoadTextureForModelGLB()", "Could not load image file! Make sure to copy it to the correct output directory. " + "[" + ex.Message + "]");
return(-1);
}
return(texID);
}
public static int LoadTextureForBackgroundExternal(string filename)
{
if (!File.Exists(filename))
{
Debug.WriteLine("File " + filename + " for setting background image not found.");
return(-1);
}
int texID;
if (filename.ToLower().EndsWith(".dds"))
{
HelperDDS2.TryLoadDDS(filename, false, out texID, out int width, out int height, true);
return(texID);
}
try
{
Bitmap image = new Bitmap(filename);
if (image == null)
{
throw new Exception("File " + filename + " is not a valid image file.");
}
texID = GL.GenTexture();
GL.BindTexture(TextureTarget.Texture2D, texID);
BitmapData data = null;
if (image.PixelFormat == System.Drawing.Imaging.PixelFormat.Format32bppArgb)
{
data = image.LockBits(new Rectangle(0, 0, image.Width, image.Height), ImageLockMode.ReadOnly, System.Drawing.Imaging.PixelFormat.Format32bppArgb);
GL.TexImage2D(TextureTarget.Texture2D, 0, PixelInternalFormat.Rgba, data.Width, data.Height, 0,
OpenTK.Graphics.OpenGL4.PixelFormat.Bgra, PixelType.UnsignedByte, data.Scan0);
}
else
{
data = image.LockBits(new Rectangle(0, 0, image.Width, image.Height), ImageLockMode.ReadOnly, System.Drawing.Imaging.PixelFormat.Format24bppRgb);
GL.TexImage2D(TextureTarget.Texture2D, 0, PixelInternalFormat.Rgb, data.Width, data.Height, 0,
OpenTK.Graphics.OpenGL4.PixelFormat.Bgr, PixelType.UnsignedByte, data.Scan0);
}
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureMinFilter, (int)TextureMinFilter.LinearMipmapLinear);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureMagFilter, (int)TextureMagFilter.Linear);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureWrapS, (int)TextureWrapMode.Repeat);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureWrapT, (int)TextureWrapMode.Repeat);
GL.GenerateMipmap(GenerateMipmapTarget.Texture2D);
int mipMapCount = GetMaxMipMapLevels(data.Width, data.Height);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureBaseLevel, 0);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureMaxLevel, Math.Max(0, mipMapCount - 2));
image.UnlockBits(data);
image.Dispose();
GL.BindTexture(TextureTarget.Texture2D, 0);
}
catch (Exception ex)
{
throw new Exception("Could not load image file " + filename + "! Make sure to copy it to the correct output directory. " + "[" + ex.Message + "]");
}
return(texID);
}
public static int LoadTextureCompressedWithMipMaps(Stream stream)
{
bool success = HelperDDS2.TryLoadDDS(stream, false, out int texID, out int width, out int height);
if (!success)
{
HelperGeneral.ShowErrorAndQuit("HelperTexture::LoadTextureCompressedWithMipMaps()", "Unsupported compressed texture format: only DXT1, DXT3 and DXT5 are supported.");
texID = -1;
throw new Exception("Unsupported compressed texture format: only DXT1, DXT3 and DXT5 are supported.");
}
return(texID);
}
public static int LoadTextureForBackgroundInternal(string assemblyPathAndName)
{
Assembly a = Assembly.GetEntryAssembly();
int texID;
if (assemblyPathAndName.ToLower().EndsWith(".dds"))
{
using (Stream s = a.GetManifestResourceStream(a.GetName().Name + "." + assemblyPathAndName))
{
HelperDDS2.TryLoadDDS(s, false, out texID, out int width, out int height, true);
}
return(texID);
}
try
{
using (Stream s = a.GetManifestResourceStream(a.GetName().Name + "." + assemblyPathAndName))
{
Bitmap image = new Bitmap(s);
if (image == null)
{
throw new Exception("File " + assemblyPathAndName + " not found or not a valid image file.");
}
texID = GL.GenTexture();
GL.BindTexture(TextureTarget.Texture2D, texID);
BitmapData data = null;
if (image.PixelFormat == System.Drawing.Imaging.PixelFormat.Format32bppArgb)
{
data = image.LockBits(new Rectangle(0, 0, image.Width, image.Height), ImageLockMode.ReadOnly, System.Drawing.Imaging.PixelFormat.Format32bppArgb);
GL.TexImage2D(TextureTarget.Texture2D, 0, PixelInternalFormat.Rgba, data.Width, data.Height, 0,
OpenTK.Graphics.OpenGL4.PixelFormat.Bgra, PixelType.UnsignedByte, data.Scan0);
}
else
{
data = image.LockBits(new Rectangle(0, 0, image.Width, image.Height), ImageLockMode.ReadOnly, System.Drawing.Imaging.PixelFormat.Format24bppRgb);
GL.TexImage2D(TextureTarget.Texture2D, 0, PixelInternalFormat.Rgb, data.Width, data.Height, 0,
OpenTK.Graphics.OpenGL4.PixelFormat.Bgr, PixelType.UnsignedByte, data.Scan0);
}
//GL.TexParameter(TextureTarget.Texture2D, (TextureParameterName)OpenTK.Graphics.OpenGL.ExtTextureFilterAnisotropic.TextureMaxAnisotropyExt, GLWindow.CurrentWindow.AnisotropicFiltering);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureMinFilter, (int)TextureMinFilter.LinearMipmapLinear);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureMagFilter, (int)TextureMagFilter.Linear);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureWrapS, (int)TextureWrapMode.Repeat);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureWrapT, (int)TextureWrapMode.Repeat);
GL.GenerateMipmap(GenerateMipmapTarget.Texture2D);
int mipMapCount = GetMaxMipMapLevels(data.Width, data.Height);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureBaseLevel, 0);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureMaxLevel, Math.Max(0, mipMapCount - 2));
image.UnlockBits(data);
image.Dispose();
GL.BindTexture(TextureTarget.Texture2D, 0);
}
}
catch (Exception)
{
throw new Exception("Could not load image file " + assemblyPathAndName + "!");
}
return(texID);
}
