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Write a framework to decode edid data in an external program.

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This isn't complete, but demonstrates how one would write an external EDID
parser that can work from binary data as dumped by the X server.
This commit is contained in:
Keith Packard 2008-03-27 11:44:37 -07:00
parent 501bdedc11
commit 5ab0acfc51
2 changed files with 84 additions and 0 deletions
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4
hw/xfree86/ddc/Makefile.am
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@ -10,3 +10,7 @@ INCLUDES = $(XORG_INCS) -I$(srcdir)/../i2c
AM_CFLAGS = $(DIX_CFLAGS) $(XORG_CFLAGS)
EXTRA_DIST = ddcPriv.h DDC.HOWTO
bin_PROGRAMS = decode_edid
decode_edid_SOURCES = decode_edid.c interpret_edid.c print_edid.c

80
hw/xfree86/ddc/decode_edid.c Normal file
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@ -0,0 +1,80 @@
#ifdef HAVE_XORG_CONFIG_H
#include <xorg-config.h>
#endif
#include "misc.h"
#include "xf86.h"
#include "xf86_OSproc.h"
#define _PARSE_EDID_
#include "xf86DDC.h"
#include <string.h>
Uchar edid[] = {
0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00,
0x52, 0x62, 0x05, 0x01, 0x00, 0x00, 0x00, 0x00,
0x00, 0x11, 0x01, 0x03, 0x80, 0x69, 0x3b, 0x78,
0x0a, 0x0d, 0xc9, 0xa0, 0x57, 0x47, 0x98, 0x27,
0x12, 0x48, 0x4c, 0x20, 0x00, 0x00, 0x01, 0x01,
0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x02, 0x3a,
0x80, 0xd0, 0x72, 0x38, 0x2d, 0x40, 0x10, 0x2c,
0x45, 0x80, 0xc4, 0x8e, 0x21, 0x00, 0x00, 0x1e,
0x8c, 0x0a, 0xd0, 0x90, 0x20, 0x40, 0x31, 0x20,
0x0c, 0x40, 0x55, 0x00, 0xc4, 0x8e, 0x21, 0x00,
0x00, 0x18, 0x00, 0x00, 0x00, 0xfc, 0x00, 0x54,
0x4f, 0x53, 0x48, 0x49, 0x42, 0x41, 0x2d, 0x54,
0x56, 0x0a, 0x20, 0x20, 0x00, 0x00, 0x00, 0xfd,
0x00, 0x17, 0x3d, 0x0f, 0x44, 0x0f, 0x00, 0x0a,
0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x01, 0x3b,
};
int
main (int argc, char **argv)
{
xf86MonPtr m;
m = xf86InterpretEDID (0, edid);
(void) xf86PrintEDID (m);
return 0;
}
pointer
XNFcalloc (unsigned long amount)
{
return calloc (amount, 1);
}
#include <stdarg.h>
void
xf86DrvMsg (int srcn, MessageType type, const char *fmt, ...)
{
va_list args;
va_start (args, fmt);
vprintf (fmt, args);
}
void
xf86Msg (MessageType type, const char *fmt, ...)
{
va_list args;
va_start (args, fmt);
vprintf (fmt, args);
}
void
xf86ErrorF (const char *fmt, ...)
{
va_list args;
va_start (args, fmt);
vprintf (fmt, args);
}
void
Xfree (pointer x)
{
free (x);
}