andreacavalli/xserver-multidpi
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RandR mode list needs both output and crtc modes.

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When an output no longer reports the current mode, it must still be included
in the list advertised by the X server. Walk the crtcs to ensure it is
included.
(cherry picked from 78689d0d66 commit)
This commit is contained in:
Keith Packard 2006-12-12 20:16:49 -08:00 committed by Dave Airlie
parent 9e32bf98bc
commit d742025f43
1 changed files with 22 additions and 1 deletions
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23
randr/rrmode.c
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@ -108,12 +108,15 @@ RRModePtr *
RRModesForScreen (ScreenPtr pScreen, int *num_ret)
{
rrScrPriv(pScreen);
int o;
int o, c;
RRModePtr *screen_modes;
int num_screen_modes = 0;
screen_modes = xalloc ((num_modes ? num_modes : 1) * sizeof (RRModePtr));
/*
* Add modes from all outputs
*/
for (o = 0; o < pScrPriv->numOutputs; o++)
{
RROutputPtr output = pScrPriv->outputs[o];
@ -129,6 +132,24 @@ RRModesForScreen (ScreenPtr pScreen, int *num_ret)
screen_modes[num_screen_modes++] = mode;
}
}
/*
* Add modes from all crtcs. The goal is to
* make sure all available and active modes
* are visible to the client
*/
for (c = 0; c < pScrPriv->numCrtcs; c++)
{
RRCrtcPtr crtc = pScrPriv->crtcs[c];
RRModePtr mode = crtc->mode;
int n;
if (!mode) continue;
for (n = 0; n < num_screen_modes; n++)
if (screen_modes[n] == mode)
break;
if (n == num_screen_modes)
screen_modes[num_screen_modes++] = mode;
}
*num_ret = num_screen_modes;
return screen_modes;
}