andreacavalli/xserver-multidpi
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Handle the combination of panning and crtc transforms

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This patch gets the shadow scanout buffer repainted on panning area changes.
It does not, however, track the mouse correctly.

Signed-off-by: Keith Packard <keithp@keithp.com>
This commit is contained in:
Keith Packard 2009-02-03 20:18:37 -08:00
parent 763df9eec7
commit 7968823cbc
1 changed files with 10 additions and 26 deletions
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36
hw/xfree86/modes/xf86Crtc.c
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@ -306,33 +306,14 @@ xf86CrtcSetModeTransform (xf86CrtcPtr crtc, DisplayModePtr mode, Rotation rotati
} else
crtc->transformPresent = FALSE;
/* Shift offsets that move us out of virtual size */
if (x + mode->HDisplay > xf86_config->maxWidth ||
y + mode->VDisplay > xf86_config->maxHeight)
{
if (x + mode->HDisplay > xf86_config->maxWidth)
crtc->x = xf86_config->maxWidth - mode->HDisplay;
if (y + mode->VDisplay > xf86_config->maxHeight)
crtc->y = xf86_config->maxHeight - mode->VDisplay;
if (crtc->x < 0 || crtc->y < 0)
{
xf86DrvMsg (scrn->scrnIndex, X_ERROR,
"Mode %dx%d does not fit virtual size %dx%d - "
"internal error\n", mode->HDisplay, mode->VDisplay,
xf86_config->maxWidth, xf86_config->maxHeight);
goto done;
}
xf86DrvMsg (scrn->scrnIndex, X_ERROR,
"Mode %dx%d+%d+%d does not fit virtual size %dx%d - "
"offset updated to +%d+%d\n",
mode->HDisplay, mode->VDisplay, x, y,
xf86_config->maxWidth, xf86_config->maxHeight,
crtc->x, crtc->y);
}
if (crtc->funcs->set_origin &&
memcmp (mode, &saved_mode, sizeof(saved_mode)) == 0 &&
saved_rotation == rotation) {
saved_rotation == rotation &&
saved_transform_present == crtc->transformPresent &&
(!crtc->transformPresent || RRTransformEqual(&saved_transform, &crtc->transform)))
{
if (!xf86CrtcRotate (crtc))
goto done;
crtc->funcs->set_origin (crtc, crtc->x, crtc->y);
ret = TRUE;
goto done;
@ -441,8 +422,11 @@ xf86CrtcSetOrigin (xf86CrtcPtr crtc, int x, int y)
{
crtc->x = x;
crtc->y = y;
if (crtc->funcs->set_origin)
if (crtc->funcs->set_origin) {
if (!xf86CrtcRotate (crtc))
return;
crtc->funcs->set_origin (crtc, x, y);
}
else
xf86CrtcSetMode (crtc, &crtc->mode, crtc->rotation, x, y);
}