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/* Copyright 2024 Pierre Ossman for Cendio AB
*
* This is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this software; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
* USA.
*/
#ifdef HAVE_DIX_CONFIG_H
#include <dix-config.h>
#endif
#include "vncExtInit.h"
#include "vncPresent.h"
#include <present.h>
static RRCrtcPtr vncPresentGetCrtc(WindowPtr window)
{
ScreenPtr pScreen = window->drawable.pScreen;
rrScrPrivPtr rp = rrGetScrPriv(pScreen);
/* All output is synchronized, so just pick the first active crtc */
for (int c = 0; c < rp->numCrtcs; c++) {
RRCrtcPtr crtc;
crtc = rp->crtcs[c];
if (crtc->mode == NULL)
continue;
return crtc;
}
return NULL;
}
static int vncPresentGetUstMsc(RRCrtcPtr crtc, CARD64 *ust, CARD64 *msc)
{
*ust = GetTimeInMicros();
*msc = vncGetMsc(crtc->pScreen->myNum);
return Success;
}
static int vncPresentQueueVBlank(RRCrtcPtr crtc, uint64_t event_id,
uint64_t msc)
{
vncQueueMsc(crtc->pScreen->myNum, event_id, msc);
return Success;
}
void vncPresentMscEvent(uint64_t id, uint64_t msc)
{
present_event_notify(id, GetTimeInMicros(), msc);
}
static void vncPresentAbortVBlank(RRCrtcPtr crtc, uint64_t event_id,
uint64_t msc)
{
vncAbortMsc(crtc->pScreen->myNum, event_id);
}
static void vncPresentFlush(WindowPtr window)
{
}
static present_screen_info_rec vncPresentScreenInfo = {
.version = PRESENT_SCREEN_INFO_VERSION,
.get_crtc = vncPresentGetCrtc,
.get_ust_msc = vncPresentGetUstMsc,
.queue_vblank = vncPresentQueueVBlank,
.abort_vblank = vncPresentAbortVBlank,
.flush = vncPresentFlush,
.capabilities = PresentCapabilityNone,
};
Bool
vncPresentInit(ScreenPtr screen)
{
return present_screen_init(screen, &vncPresentScreenInfo);
}
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