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backport (whitespace changes only) a fix for panning that also effected scale

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to permit:
   xrandr --output LVDS1 --mode 1280x800 --panning 1380x1024 --scale 1.8x1.8
to behave properly.
based on upstream commit 1bf81af4a6be1113bcc3b940ab264d5c9e0f0c5d that is in
the 1.14 xserver that is not ready for OpenBSD yet
ok matthieu@
This commit is contained in:
todd 2013-03-21 21:26:08 +00:00
parent d890a3469b
commit 7cfc4a7689
1 changed files with 34 additions and 2 deletions
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36
xserver/hw/xfree86/modes/xf86RandR12.c
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@ -60,6 +60,9 @@ typedef struct _xf86RandR12Info {
* See https://bugs.freedesktop.org/show_bug.cgi?id=21554
*/
xf86EnterVTProc *orig_EnterVT;
Bool panning;
ConstrainCursorHarderProcPtr orig_ConstrainCursorHarder;
} XF86RandRInfoRec, *XF86RandRInfoPtr;
#ifdef RANDR_12_INTERFACE
@ -665,6 +668,10 @@ xf86RandR12SetConfig(ScreenPtr pScreen,
return TRUE;
}
#define PANNING_ENABLED(crtc) \
((crtc)->panningTotalArea.x2 > (crtc)->panningTotalArea.x1 || \
(crtc)->panningTotalArea.y2 > (crtc)->panningTotalArea.y1)
static Bool
xf86RandR12ScreenSetSize(ScreenPtr pScreen,
CARD16 width,
@ -676,6 +683,7 @@ xf86RandR12ScreenSetSize(ScreenPtr pScreen,
WindowPtr pRoot = pScreen->root;
PixmapPtr pScrnPix;
Bool ret = FALSE;
Bool panning = FALSE;
int c;
if (xf86RandR12Key) {
@ -696,8 +704,7 @@ xf86RandR12ScreenSetSize(ScreenPtr pScreen,
for (c = 0; c < config->num_crtc; c++) {
xf86CrtcPtr crtc = config->crtc[c];
if (crtc->panningTotalArea.x2 > crtc->panningTotalArea.x1 ||
crtc->panningTotalArea.y2 > crtc->panningTotalArea.y1) {
if (PANNING_ENABLED (crtc)) {
if (crtc->panningTotalArea.x2 > crtc->panningTrackingArea.x1)
crtc->panningTotalArea.x2 += width - pScreen->width;
if (crtc->panningTotalArea.y2 > crtc->panningTrackingArea.y1)
@ -708,6 +715,7 @@ xf86RandR12ScreenSetSize(ScreenPtr pScreen,
crtc->panningTrackingArea.y2 += height - pScreen->height;
xf86RandR13VerifyPanningArea(crtc, width, height);
xf86RandR13Pan(crtc, randrp->pointerX, randrp->pointerY);
panning = TRUE;
}
}
@ -904,6 +912,7 @@ xf86RandR12CloseScreen(ScreenPtr pScreen)
randrp = XF86RANDRINFO(pScreen);
#if RANDR_12_INTERFACE
xf86Screens[pScreen->myNum]->EnterVT = randrp->orig_EnterVT;
pScreen->ConstrainCursorHarder = randrp->orig_ConstrainCursorHarder;
#endif
free(randrp);
@ -1214,6 +1223,7 @@ xf86RandR12CrtcSet(ScreenPtr pScreen,
}
xf86RandR13VerifyPanningArea(crtc, pScreen->width, pScreen->height);
xf86RandR13Pan(crtc, randrp->pointerX, randrp->pointerY);
randrp->panning = PANNING_ENABLED (crtc);
/*
* Save the last successful setting for EnterVT
*/
@ -1640,6 +1650,7 @@ xf86RandR13SetPanning(ScreenPtr pScreen,
BoxRec oldTotalArea;
BoxRec oldTrackingArea;
INT16 oldBorder[4];
Bool oldPanning = randrp->panning;
if (crtc->version < 2)
return FALSE;
@ -1657,6 +1668,7 @@ xf86RandR13SetPanning(ScreenPtr pScreen,
if (xf86RandR13VerifyPanningArea(crtc, pScreen->width, pScreen->height)) {
xf86RandR13Pan(crtc, randrp->pointerX, randrp->pointerY);
randrp->panning = PANNING_ENABLED (crtc);
return TRUE;
}
else {
@ -1664,6 +1676,7 @@ xf86RandR13SetPanning(ScreenPtr pScreen,
memcpy(&crtc->panningTotalArea, &oldTotalArea, sizeof(BoxRec));
memcpy(&crtc->panningTrackingArea, &oldTrackingArea, sizeof(BoxRec));
memcpy(crtc->panningBorder, oldBorder, 4 * sizeof(INT16));
randrp->panning = oldPanning;
return FALSE;
}
}
@ -1749,6 +1762,21 @@ xf86RandR12EnterVT(int screen_index, int flags)
return RRGetInfo(pScreen, TRUE); /* force a re-probe of outputs and notify clients about changes */
}
static void
xf86RandR13ConstrainCursorHarder(DeviceIntPtr dev, ScreenPtr screen, int mode, int *x, int *y)
{
XF86RandRInfoPtr randrp = XF86RANDRINFO(screen);
if (randrp->panning)
return;
if (randrp->orig_ConstrainCursorHarder) {
screen->ConstrainCursorHarder = randrp->orig_ConstrainCursorHarder;
screen->ConstrainCursorHarder(dev, screen, mode, x, y);
screen->ConstrainCursorHarder = xf86RandR13ConstrainCursorHarder;
}
}
static Bool
xf86RandR12Init12(ScreenPtr pScreen)
{
@ -1777,6 +1805,10 @@ xf86RandR12Init12(ScreenPtr pScreen)
randrp->orig_EnterVT = pScrn->EnterVT;
pScrn->EnterVT = xf86RandR12EnterVT;
randrp->panning = FALSE;
randrp->orig_ConstrainCursorHarder = pScreen->ConstrainCursorHarder;
pScreen->ConstrainCursorHarder = xf86RandR13ConstrainCursorHarder;
if (!xf86RandR12CreateObjects12(pScreen))
return FALSE;