5e2888e94b71551c1a47770f79a214ba04f30d53
2 * Copyright 2005-2006 Luc Verhaegen.
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20 * OTHER DEALINGS IN THE SOFTWARE.
24 /* Standalone VESA CVT standard timing modelines generator. */
27 #include "xf86Modes.h"
29 /* FatalError implementation used by the server code we built in */
31 FatalError(const char *f
, ...)
36 vfprintf(stderr
, f
, args
);
41 /* xnfalloc implementation used by the server code we built in */
43 XNFalloc(unsigned long n
)
49 perror("malloc failed");
55 /* xnfcalloc implementation used by the server code we built in */
57 XNFcalloc(unsigned long n
)
63 perror("calloc failed");
70 * Quickly check wether this is a CVT standard mode.
73 CVTCheckStandard(int HDisplay
, int VDisplay
, float VRefresh
, Bool Reduced
,
78 if ((!(VDisplay
% 3) && ((VDisplay
* 4 / 3) == HDisplay
)) ||
79 (!(VDisplay
% 9) && ((VDisplay
* 16 / 9) == HDisplay
)) ||
80 (!(VDisplay
% 10) && ((VDisplay
* 16 / 10) == HDisplay
)) ||
81 (!(VDisplay
% 4) && ((VDisplay
* 5 / 4) == HDisplay
)) ||
82 (!(VDisplay
% 9) && ((VDisplay
* 15 / 9) == HDisplay
)));
85 fprintf(stderr
, "Warning: Aspect Ratio is not CVT standard.\n");
89 if ((VRefresh
!= 50.0) && (VRefresh
!= 60.0) &&
90 (VRefresh
!= 75.0) && (VRefresh
!= 85.0)) {
92 fprintf(stderr
, "Warning: Refresh Rate is not CVT standard "
93 "(50, 60, 75 or 85Hz).\n");
101 * I'm not documenting --interlaced for obvious reasons, even though I did
102 * implement it. I also can't deny having looked at gtf here.
105 PrintUsage(char *Name
)
107 fprintf(stderr
, "\n");
108 fprintf(stderr
, "usage: %s [-v|--verbose] [-r|--reduced] X Y [refresh]\n",
110 fprintf(stderr
, "\n");
111 fprintf(stderr
, " -v|--verbose : Warn about CVT standard adherance.\n");
112 fprintf(stderr
, " -r|--reduced : Create a mode with reduced blanking "
113 "(default: normal blanking).\n");
114 fprintf(stderr
, " X : Desired horizontal resolution "
115 "(multiple of 8, required).\n");
117 " Y : Desired vertical resolution (required).\n");
119 " refresh : Desired refresh rate (default: 60.0Hz).\n");
120 fprintf(stderr
, "\n");
122 fprintf(stderr
, "Calculates VESA CVT (Coordinated Video Timing) modelines"
123 " for use with X.\n");
130 PrintComment(DisplayModeRec
* Mode
, Bool CVT
, Bool Reduced
)
132 printf("# %dx%d %.2f Hz ", Mode
->HDisplay
, Mode
->VDisplay
, Mode
->VRefresh
);
136 ((float) Mode
->HDisplay
* Mode
->VDisplay
) / 1000000.0);
138 if (!(Mode
->VDisplay
% 3) &&
139 ((Mode
->VDisplay
* 4 / 3) == Mode
->HDisplay
))
141 else if (!(Mode
->VDisplay
% 9) &&
142 ((Mode
->VDisplay
* 16 / 9) == Mode
->HDisplay
))
144 else if (!(Mode
->VDisplay
% 10) &&
145 ((Mode
->VDisplay
* 16 / 10) == Mode
->HDisplay
))
147 else if (!(Mode
->VDisplay
% 4) &&
148 ((Mode
->VDisplay
* 5 / 4) == Mode
->HDisplay
))
150 else if (!(Mode
->VDisplay
% 9) &&
151 ((Mode
->VDisplay
* 15 / 9) == Mode
->HDisplay
))
162 printf("hsync: %.2f kHz; ", Mode
->HSync
);
163 printf("pclk: %.2f MHz", ((float) Mode
->Clock
) / 1000.0);
169 * Originally grabbed from xf86Mode.c.
171 * Ignoring the actual Mode->name, as the user will want something solid
175 PrintModeline(DisplayModePtr Mode
, int HDisplay
, int VDisplay
, float VRefresh
,
179 printf("Modeline \"%dx%dR\" ", HDisplay
, VDisplay
);
181 printf("Modeline \"%dx%d_%.2f\" ", HDisplay
, VDisplay
, VRefresh
);
183 printf("%6.2f %i %i %i %i %i %i %i %i", Mode
->Clock
/ 1000.,
184 Mode
->HDisplay
, Mode
->HSyncStart
, Mode
->HSyncEnd
, Mode
->HTotal
,
185 Mode
->VDisplay
, Mode
->VSyncStart
, Mode
->VSyncEnd
, Mode
->VTotal
);
187 if (Mode
->Flags
& V_INTERLACE
)
188 printf(" interlace");
189 if (Mode
->Flags
& V_PHSYNC
)
191 if (Mode
->Flags
& V_NHSYNC
)
193 if (Mode
->Flags
& V_PVSYNC
)
195 if (Mode
->Flags
& V_NVSYNC
)
205 main(int argc
, char *argv
[])
207 DisplayModeRec
*Mode
;
208 int HDisplay
= 0, VDisplay
= 0;
209 float VRefresh
= 0.0;
210 Bool Reduced
= FALSE
, Verbose
= FALSE
, IsCVT
;
211 Bool Interlaced
= FALSE
;
214 if ((argc
< 3) || (argc
> 7)) {
219 /* This doesn't filter out bad flags properly. Bad flags get passed down
220 * to atoi/atof, which then return 0, so that these variables can get
221 * filled next time round. So this is just a cosmetic problem.
223 for (n
= 1; n
< argc
; n
++) {
224 if (!strcmp(argv
[n
], "-r") || !strcmp(argv
[n
], "--reduced"))
226 else if (!strcmp(argv
[n
], "-i") || !strcmp(argv
[n
], "--interlaced"))
228 else if (!strcmp(argv
[n
], "-v") || !strcmp(argv
[n
], "--verbose"))
230 else if (!strcmp(argv
[n
], "-h") || !strcmp(argv
[n
], "--help")) {
234 else if (!HDisplay
) {
235 HDisplay
= atoi(argv
[n
]);
241 else if (!VDisplay
) {
242 VDisplay
= atoi(argv
[n
]);
248 else if (!VRefresh
) {
249 VRefresh
= atof(argv
[n
]);
261 if (!HDisplay
|| !VDisplay
) {
266 /* Default to 60.0Hz */
270 /* Horizontal timing is always a multiple of 8: round up. */
271 if (HDisplay
& 0x07) {
277 if ((VRefresh
/ 60.0) != floor(VRefresh
/ 60.0)) {
279 "\nERROR: Multiple of 60Hz refresh rate required for "
280 " reduced blanking.\n");
286 IsCVT
= CVTCheckStandard(HDisplay
, VDisplay
, VRefresh
, Reduced
, Verbose
);
288 Mode
= xf86CVTMode(HDisplay
, VDisplay
, VRefresh
, Reduced
, Interlaced
);
290 PrintComment(Mode
, IsCVT
, Reduced
);
291 PrintModeline(Mode
, HDisplay
, VDisplay
, VRefresh
, Reduced
);