Axiom.RenderSystems.OpenGL.GLPixelUtil.GetClosestPixelFormat C# (CSharp) Метод

		public static PixelFormat GetClosestPixelFormat( int format )
		{
			switch ( format )
			{
				case Gl.GL_LUMINANCE8:
					return PixelFormat.L8;
				case Gl.GL_LUMINANCE16:
					return PixelFormat.L16;
				case Gl.GL_ALPHA8:
					return PixelFormat.A8;
				//case Gl.GL_LUMINANCE4_ALPHA4:
				//    // Unsupported by GL as input format, use the byte packed format
				//    return PixelFormat.BYTE_LA;
				//case Gl.GL_LUMINANCE8_ALPHA8:
				//    return PixelFormat.BYTE_LA;
				case Gl.GL_R3_G3_B2:
					return PixelFormat.R3G3B2;
				case Gl.GL_RGB5_A1:
					return PixelFormat.A1R5G5B5;
				case Gl.GL_RGB5:
					return PixelFormat.R5G6B5;
				case Gl.GL_RGBA4:
					return PixelFormat.A4R4G4B4;
				case Gl.GL_RGB8:
					return PixelFormat.X8R8G8B8;
				case Gl.GL_RGBA8:
					return PixelFormat.A8R8G8B8;
				case Gl.GL_RGB10_A2:
					return PixelFormat.A2R10G10B10;
				case Gl.GL_RGBA16:
					return PixelFormat.SHORT_RGBA;
				//case Gl.GL_RGB16:
				//    return PixelFormat.SHORT_RGB;
				//case Gl.GL_LUMINANCE16_ALPHA16:
				//    return PixelFormat.SHORT_GR;
				case Gl.GL_LUMINANCE_FLOAT16_ATI:
					return PixelFormat.FLOAT16_R;
				//case Gl.GL_LUMINANCE_ALPHA_FLOAT16_ATI:
				//    return PixelFormat.FLOAT16_GR;
				//case Gl.GL_LUMINANCE_ALPHA_FLOAT32_ATI:
				//    return PixelFormat.FLOAT32_GR;
				case Gl.GL_LUMINANCE_FLOAT32_ATI:
					return PixelFormat.FLOAT32_R;
				case Gl.GL_RGB_FLOAT16_ATI: // Gl.GL_RGB16F_ARB
					return PixelFormat.FLOAT16_RGB;
				case Gl.GL_RGBA_FLOAT16_ATI:
					return PixelFormat.FLOAT16_RGBA;
				case Gl.GL_RGB_FLOAT32_ATI:
					return PixelFormat.FLOAT32_RGB;
				case Gl.GL_RGBA_FLOAT32_ATI:
					return PixelFormat.FLOAT32_RGBA;
				case Gl.GL_COMPRESSED_RGB_S3TC_DXT1_EXT:
				case Gl.GL_COMPRESSED_RGBA_S3TC_DXT1_EXT:
					return PixelFormat.DXT1;
				case Gl.GL_COMPRESSED_RGBA_S3TC_DXT3_EXT:
					return PixelFormat.DXT3;
				case Gl.GL_COMPRESSED_RGBA_S3TC_DXT5_EXT:
					return PixelFormat.DXT5;
				default:
					return PixelFormat.A8R8G8B8;
			}
		}

        public GLRenderBuffer(int format, int width, int height, int fsaa)
            : base(width, height, 1, GLPixelUtil.GetClosestPixelFormat(format), BufferUsage.WriteOnly)
        {
            GLFormat = format;
            /// Generate renderbuffer
            Gl.glGenRenderbuffersEXT(1, out this._renderBufferId);
            /// Bind it to FBO
            Gl.glBindRenderbufferEXT(Gl.GL_RENDERBUFFER_EXT, this._renderBufferId);

            /// Allocate storage for depth buffer
            Gl.glRenderbufferStorageEXT(Gl.GL_RENDERBUFFER_EXT, format, width, height);
        }