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);
}
internal static int LoadTextureSkybox(string filename, bool isInAssembly = false)
{
Assembly a = Assembly.GetEntryAssembly();
if (!filename.ToLower().EndsWith("jpg") && !filename.ToLower().EndsWith("jpeg") && !filename.ToLower().EndsWith("png") && !filename.ToLower().EndsWith("dds"))
{
HelperGeneral.ShowErrorAndQuit("HelperTexture::LoadTextureSkybox()", "Only JPG, PNG and DDS (DXT1/3/5) files are supported.");
return(-1);
}
if (!KWEngine.CustomTextures[KWEngine.CurrentWorld].ContainsKey(filename))
{
int mipMapCount = 0;
try
{
using (Stream s = isInAssembly ? a.GetManifestResourceStream(a.GetName().Name + "." + filename) : File.Open(filename, FileMode.Open))
{
if (filename.ToLower().EndsWith(".dds"))
{
int textureId = -1;
HelperDDS2.TryLoadDDSCubeMap(s, false, out textureId, out mipMapCount);
return(textureId);
}
Bitmap image = new Bitmap(s);
int width = image.Width;
int height = image.Height;
int height_onethird = height / 3;
int width_onequarter = width / 4;
Bitmap image_front = new Bitmap(width_onequarter, height_onethird, image.PixelFormat);
Bitmap image_back = new Bitmap(width_onequarter, height_onethird, image.PixelFormat);
Bitmap image_up = new Bitmap(width_onequarter, height_onethird, image.PixelFormat);
Bitmap image_down = new Bitmap(width_onequarter, height_onethird, image.PixelFormat);
Bitmap image_left = new Bitmap(width_onequarter, height_onethird, image.PixelFormat);
Bitmap image_right = new Bitmap(width_onequarter, height_onethird, image.PixelFormat);
Graphics g = null;
//front
g = Graphics.FromImage(image_front);
g.DrawImage(image,
new Rectangle(0, 0, width_onequarter, height_onethird),
new Rectangle(2 * width_onequarter, height_onethird, width_onequarter, height_onethird),
GraphicsUnit.Pixel
);
g.Dispose();
//back
g = Graphics.FromImage(image_back);
g.DrawImage(image,
new Rectangle(0, 0, width_onequarter, height_onethird),
new Rectangle(0, height_onethird, width_onequarter, height_onethird),
GraphicsUnit.Pixel
);
g.Dispose();
//up
g = Graphics.FromImage(image_up);
g.DrawImage(image,
new Rectangle(0, 0, width_onequarter, height_onethird),
new Rectangle(width_onequarter, 0, width_onequarter, height_onethird),
GraphicsUnit.Pixel
);
g.Dispose();
//down
g = Graphics.FromImage(image_down);
g.DrawImage(image,
new Rectangle(0, 0, width_onequarter, height_onethird),
new Rectangle(width_onequarter, 2 * height_onethird, width_onequarter, height_onethird),
GraphicsUnit.Pixel
);
g.Dispose();
//left
g = Graphics.FromImage(image_left);
g.DrawImage(image,
new Rectangle(0, 0, width_onequarter, height_onethird),
new Rectangle(width_onequarter, height_onethird, width_onequarter, height_onethird),
GraphicsUnit.Pixel
);
g.Dispose();
//right
g = Graphics.FromImage(image_right);
g.DrawImage(image,
new Rectangle(0, 0, width_onequarter, height_onethird),
new Rectangle(3 * width_onequarter, height_onethird, width_onequarter, height_onethird),
GraphicsUnit.Pixel
);
g.Dispose();
int newTexture = GL.GenTexture();
GL.BindTexture(TextureTarget.TextureCubeMap, newTexture);
BitmapData data = null;
PixelInternalFormat iFormat = image.PixelFormat == System.Drawing.Imaging.PixelFormat.Format24bppRgb ? PixelInternalFormat.Rgb : PixelInternalFormat.Rgba;
OpenTK.Graphics.OpenGL4.PixelFormat pxFormat = image.PixelFormat == System.Drawing.Imaging.PixelFormat.Format24bppRgb ? OpenTK.Graphics.OpenGL4.PixelFormat.Bgr : OpenTK.Graphics.OpenGL4.PixelFormat.Bgra;
// front
data = image_front.LockBits(new Rectangle(0, 0, image_front.Width, image_front.Height), ImageLockMode.ReadOnly, image.PixelFormat);
GL.TexImage2D(TextureTarget.TextureCubeMapPositiveX, 0, iFormat, data.Width, data.Height, 0, pxFormat, PixelType.UnsignedByte, data.Scan0);
image_front.UnlockBits(data);
// back
data = image_back.LockBits(new Rectangle(0, 0, image_back.Width, image_back.Height), ImageLockMode.ReadOnly, image.PixelFormat);
GL.TexImage2D(TextureTarget.TextureCubeMapNegativeX, 0, iFormat, data.Width, data.Height, 0, pxFormat, PixelType.UnsignedByte, data.Scan0);
image_back.UnlockBits(data);
// up
data = image_up.LockBits(new Rectangle(0, 0, image_up.Width, image_up.Height), ImageLockMode.ReadOnly, image.PixelFormat);
GL.TexImage2D(TextureTarget.TextureCubeMapPositiveY, 0, iFormat, data.Width, data.Height, 0, pxFormat, PixelType.UnsignedByte, data.Scan0);
image_up.UnlockBits(data);
// down
data = image_down.LockBits(new Rectangle(0, 0, image_down.Width, image_down.Height), ImageLockMode.ReadOnly, image.PixelFormat);
GL.TexImage2D(TextureTarget.TextureCubeMapNegativeY, 0, iFormat, data.Width, data.Height, 0, pxFormat, PixelType.UnsignedByte, data.Scan0);
image_down.UnlockBits(data);
// left
data = image_left.LockBits(new Rectangle(0, 0, image_left.Width, image_left.Height), ImageLockMode.ReadOnly, image.PixelFormat);
GL.TexImage2D(TextureTarget.TextureCubeMapPositiveZ, 0, iFormat, data.Width, data.Height, 0, pxFormat, PixelType.UnsignedByte, data.Scan0);
image_left.UnlockBits(data);
// right
data = image_right.LockBits(new Rectangle(0, 0, image_right.Width, image_right.Height), ImageLockMode.ReadOnly, image.PixelFormat);
GL.TexImage2D(TextureTarget.TextureCubeMapNegativeZ, 0, iFormat, data.Width, data.Height, 0, pxFormat, PixelType.UnsignedByte, data.Scan0);
image_right.UnlockBits(data);
GL.TexParameter(TextureTarget.TextureCubeMap, TextureParameterName.TextureMagFilter, (int)TextureMagFilter.Linear);
GL.TexParameter(TextureTarget.TextureCubeMap, TextureParameterName.TextureMinFilter, (int)TextureMinFilter.LinearMipmapLinear);
GL.TexParameter(TextureTarget.TextureCubeMap, TextureParameterName.TextureWrapS, (int)TextureWrapMode.ClampToEdge);
GL.TexParameter(TextureTarget.TextureCubeMap, TextureParameterName.TextureWrapT, (int)TextureWrapMode.ClampToEdge);
GL.TexParameter(TextureTarget.TextureCubeMap, TextureParameterName.TextureWrapR, (int)TextureWrapMode.ClampToEdge);
GL.GenerateMipmap(GenerateMipmapTarget.TextureCubeMap);
mipMapCount = GetMaxMipMapLevels(width_onequarter, height_onethird);
GL.TexParameter(TextureTarget.TextureCubeMap, TextureParameterName.TextureBaseLevel, 0);
GL.TexParameter(TextureTarget.TextureCubeMap, TextureParameterName.TextureMaxLevel, Math.Max(0, mipMapCount - 2));
KWEngine.CustomTextures[KWEngine.CurrentWorld].Add(filename, newTexture);
image.Dispose();
image_front.Dispose();
image_back.Dispose();
image_up.Dispose();
image_down.Dispose();
image_left.Dispose();
image_right.Dispose();
GL.BindTexture(TextureTarget.TextureCubeMap, 0);
return(newTexture);
}
}
catch (Exception ex)
{
Debug.WriteLine("Error loading skybox texture: " + filename + " (" + ex.Message + ")");
return(-1);
}
}
else
{
int id = -1;
KWEngine.CustomTextures[KWEngine.CurrentWorld].TryGetValue(filename, out id);
return(id);
}
}
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);
}
