public PixelFormatDescriptor(
System.Drawing.Imaging.PixelFormat drawingFormat,
PixelInternalFormat glInternalPixelFormat,
PixelFormat glPixelFormat,
PixelType glPixelType)
{
DrawingFormat = drawingFormat;
GLPixelInternalFormat = glInternalPixelFormat;
GLPixelFormat = glPixelFormat;
GLPixelType = glPixelType;
}
public PixelFormatDescriptor(
System.Drawing.Imaging.PixelFormat drawingFormat,
PixelInternalFormat glInternalPixelFormat,
PixelFormat glPixelFormat,
PixelType glPixelType)
{
DrawingFormat = drawingFormat;
GLPixelInternalFormat = glInternalPixelFormat;
GLPixelFormat = glPixelFormat;
GLPixelType = glPixelType;
}
private static void GetOpenGlFormat(System.Drawing.Imaging.PixelFormat drawingFormat,
out PixelInternalFormat glInternalPixelFormat, out PixelFormat glPixelFormat, out PixelType glPixelType)
{
switch (drawingFormat)
{
case System.Drawing.Imaging.PixelFormat.Format8bppIndexed: // misses glColorTable setup
glInternalPixelFormat = PixelInternalFormat.R8;
glPixelFormat = PixelFormat.Red;
glPixelType = PixelType.UnsignedByte;
break;
case System.Drawing.Imaging.PixelFormat.Format16bppArgb1555:
case System.Drawing.Imaging.PixelFormat.Format16bppRgb555: // does not work
glInternalPixelFormat = PixelInternalFormat.Rgb5A1;
glPixelFormat = PixelFormat.Bgr;
glPixelType = PixelType.UnsignedShort5551Ext;
break;
case System.Drawing.Imaging.PixelFormat.Format24bppRgb: // works
glInternalPixelFormat = PixelInternalFormat.Rgb8;
glPixelFormat = PixelFormat.Bgr;
glPixelType = PixelType.UnsignedByte;
break;
case System.Drawing.Imaging.PixelFormat.Format32bppRgb: // has alpha too? wtf?
case System.Drawing.Imaging.PixelFormat.Canonical:
case System.Drawing.Imaging.PixelFormat.Format32bppArgb: // works
glInternalPixelFormat = PixelInternalFormat.Rgba;
glPixelFormat = PixelFormat.Bgra;
glPixelType = PixelType.UnsignedByte;
break;
default:
throw new NotSupportedException(drawingFormat.ToString());
}
}
