Axiom.RenderSystems.OpenGL.GLTexture.GenerateMipMaps C# (CSharp) Метод

		protected void GenerateMipMaps( byte[] data, bool useSoftware, bool isCompressed, int faceNum )
		{
			// use regular type, unless cubemap, then specify which face of the cubemap we
			// are dealing with here
			int type = ( TextureType == TextureType.CubeMap ) ? Gl.GL_TEXTURE_CUBE_MAP_POSITIVE_X + faceNum : this.GLTextureType;

			if ( useSoftware && MipmapCount > 0 )
			{
				if ( TextureType == TextureType.OneD )
				{
					Glu.gluBuild1DMipmaps(
						type,
						HasAlpha ? Gl.GL_RGBA8 : Gl.GL_RGB8,
						Width,
						this.GLFormat,
						Gl.GL_UNSIGNED_BYTE,
						data );
				}
				else if ( TextureType == TextureType.ThreeD )
				{
					// TODO: Tao needs glTexImage3D
					Gl.glTexImage3DEXT(
						type,
						0,
						HasAlpha ? Gl.GL_RGBA8 : Gl.GL_RGB8,
						SrcWidth, SrcHeight, Depth, 0, this.GLFormat,
						Gl.GL_UNSIGNED_BYTE,
						data );
				}
				else
				{
					// build the mipmaps
					Glu.gluBuild2DMipmaps(
						type,
						HasAlpha ? Gl.GL_RGBA8 : Gl.GL_RGB8,
						Width, Height,
						this.GLFormat,
						Gl.GL_UNSIGNED_BYTE,
						data );
				}
			}
			else
			{
				if ( TextureType == TextureType.OneD )
				{
					Gl.glTexImage1D(
						type,
						0,
						HasAlpha ? Gl.GL_RGBA8 : Gl.GL_RGB8,
						Width,
						0,
						this.GLFormat,
						Gl.GL_UNSIGNED_BYTE,
						data );
				}
				else if ( TextureType == TextureType.ThreeD )
				{
					// TODO: Tao needs glTexImage3D
					Gl.glTexImage3DEXT(
						type,
						0,
						HasAlpha ? Gl.GL_RGBA8 : Gl.GL_RGB8,
						SrcWidth, SrcHeight, Depth, 0, this.GLFormat,
						Gl.GL_UNSIGNED_BYTE,
						data );
				}
				else
				{
					if ( isCompressed && Root.Instance.RenderSystem.Capabilities.HasCapability( Capabilities.TextureCompressionDXT ) )
					{
						int blockSize = ( Format == PixelFormat.DXT1 ) ? 8 : 16;
						int size = ( ( Width + 3 ) / 4 ) * ( ( Height + 3 ) / 4 ) * blockSize;

						// load compressed image data
						Gl.glCompressedTexImage2DARB(
							type,
							0,
							this.GLFormat,
							SrcWidth,
							SrcHeight,
							0,
							size,
							data );
					}
					else
					{
						Gl.glTexImage2D(
							type,
							0,
							HasAlpha ? Gl.GL_RGBA8 : Gl.GL_RGB8,
							Width, Height, 0,
							this.GLFormat, Gl.GL_UNSIGNED_BYTE,
							data );
					}
				}
			}
		}