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xwayland: Use RandR 1.2 interface (rev 2)

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This adds the RandR 1.2 interface to xwayland and allows modes
advertised by the compositor to be set in an undistructive manner.

With this patch, applications that try to set the resolution will usually
succeed and work while other apps using the same xwayland
instance are not affected at all.

The RandR 1.2 interface will be needed to implement fake-mode-setting and
already makes applications work much cleaner and predictive when a mode
was set.

[hdegoede@redhat.com: Make crtc_set only succeed if the mode matches
 the desktop resolution]

Reviewed-by: Olivier Fourdan <ofourdan@redhat.com>
Acked-by: Michel Dänzer <mdaenzer@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
This commit is contained in:
Robert Mader 2018-01-22 17:57:38 +01:00 committed by Hans de Goede
parent 0d656d7960
commit e89872f51a
1 changed files with 81 additions and 0 deletions
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81
hw/xwayland/xwayland-output.c
View File

@ -577,12 +577,80 @@ xwl_randr_get_info(ScreenPtr pScreen, Rotation * rotations)
return TRUE;
}
#ifdef RANDR_10_INTERFACE
static Bool
xwl_randr_set_config(ScreenPtr pScreen,
Rotation rotation, int rate, RRScreenSizePtr pSize)
{
return FALSE;
}
#endif
#if RANDR_12_INTERFACE
static Bool
xwl_randr_screen_set_size(ScreenPtr pScreen,
CARD16 width,
CARD16 height,
CARD32 mmWidth, CARD32 mmHeight)
{
return TRUE;
}
static Bool
xwl_randr_crtc_set(ScreenPtr pScreen,
RRCrtcPtr crtc,
RRModePtr mode,
int x,
int y,
Rotation rotation,
int numOutputs, RROutputPtr * outputs)
{
struct xwl_output *xwl_output = crtc->devPrivate;
if (!mode || (mode->mode.width == xwl_output->width &&
mode->mode.height == xwl_output->height)) {
RRCrtcChanged(crtc, TRUE);
return TRUE;
}
return FALSE;
}
static Bool
xwl_randr_crtc_set_gamma(ScreenPtr pScreen, RRCrtcPtr crtc)
{
return TRUE;
}
static Bool
xwl_randr_crtc_get_gamma(ScreenPtr pScreen, RRCrtcPtr crtc)
{
return TRUE;
}
static Bool
xwl_randr_output_set_property(ScreenPtr pScreen,
RROutputPtr output,
Atom property,
RRPropertyValuePtr value)
{
return TRUE;
}
static Bool
xwl_output_validate_mode(ScreenPtr pScreen,
RROutputPtr output,
RRModePtr mode)
{
return TRUE;
}
static void
xwl_randr_mode_destroy(ScreenPtr pScreen, RRModePtr mode)
{
return;
}
#endif
Bool
xwl_screen_init_output(struct xwl_screen *xwl_screen)
@ -596,7 +664,20 @@ xwl_screen_init_output(struct xwl_screen *xwl_screen)
rp = rrGetScrPriv(xwl_screen->screen);
rp->rrGetInfo = xwl_randr_get_info;
#if RANDR_10_INTERFACE
rp->rrSetConfig = xwl_randr_set_config;
#endif
#if RANDR_12_INTERFACE
rp->rrScreenSetSize = xwl_randr_screen_set_size;
rp->rrCrtcSet = xwl_randr_crtc_set;
rp->rrCrtcSetGamma = xwl_randr_crtc_set_gamma;
rp->rrCrtcGetGamma = xwl_randr_crtc_get_gamma;
rp->rrOutputSetProperty = xwl_randr_output_set_property;
rp->rrOutputValidateMode = xwl_output_validate_mode;
rp->rrModeDestroy = xwl_randr_mode_destroy;
#endif
return TRUE;
}