void LoadTexture(byte[] bytes)
{
LogFile.WriteLine("loading texture to opengl, bytescount = " + bytes.Length);
// from http://svn.sourceforge.net/viewvc/boogame/trunk/BooGame/src/Texture.cs?view=markup
int ilImage;
Il.ilGenImages(1, out ilImage);
Il.ilBindImage(ilImage);
if (!Il.ilLoadL(Il.IL_TYPE_UNKNOWN, bytes, bytes.Length))
{
throw new Exception("Failed to load image.");
}
if (!Il.ilConvertImage(Il.IL_RGBA, Il.IL_UNSIGNED_BYTE))
{
throw new Exception("Failed to convert image.");
}
int m_BytesPerPixel = Il.ilGetInteger(Il.IL_IMAGE_BPP);
int m_Width = Il.ilGetInteger(Il.IL_IMAGE_WIDTH);
int m_Height = Il.ilGetInteger(Il.IL_IMAGE_HEIGHT);
int m_Format = Il.ilGetInteger(Il.IL_IMAGE_FORMAT);
int m_Depth = Il.ilGetInteger(Il.IL_IMAGE_DEPTH);
LogFile.WriteLine("size: " + m_Width + " x " + m_Height + " depth " + m_Depth + " bytesperpixel " + m_BytesPerPixel);
int m_TextureWidth = NextPowerOfTwo(m_Width);
int m_TextureHeight = NextPowerOfTwo(m_Height);
if ((m_TextureWidth != m_Width) || (m_TextureHeight != m_Height))
{
Ilu.iluEnlargeCanvas(m_TextureWidth, m_TextureHeight, m_Depth);
}
//Ilu.iluFlipImage();
Gl.glBindTexture(Gl.GL_TEXTURE_2D, idingraphicsengine);
Gl.glTexParameterf(Gl.GL_TEXTURE_2D, Gl.GL_TEXTURE_MIN_FILTER, Gl.GL_NEAREST);
Gl.glTexParameterf(Gl.GL_TEXTURE_2D, Gl.GL_TEXTURE_MAG_FILTER, Gl.GL_NEAREST);
Gl.glTexImage2D(Gl.GL_TEXTURE_2D, 0, m_BytesPerPixel, m_TextureWidth,
m_TextureHeight, 0, m_Format, Gl.GL_UNSIGNED_BYTE, Il.ilGetData());
Il.ilDeleteImages(1, ref ilImage);
}