GTF: Generalized Timing Format (VESA)
linux/gtf - Department Of Computer ScienceThe GTF provides for computation of interlaced mode timings
* While every precaution has been taken in the preparation * of this standard, the Video Electronics Standards Association and * its contributors assume no responsibility for errors or omissions, * and make no warranties, expressed or implied, of functionality * of suitability for any purpose. The sample code contained within * this standard may be used without restriction. * The GTF EXCEL(TM) SPREADSHEET, a sample (and the definitive) * implementation of the GTF Timing Standard, is available at: * * ftp://ftp.vesa.org/pub/GTF/GTF_V1R1.xls * * This program takes a desired resolution and vertical refresh rate, * and computes mode timings according to the GTF Timing Standard. * These mode timings can then be formatted as an XFree86 modeline * or a mode description for use by fbset(8).