Bool
xf86InitFBManager(
ScreenPtr pScreen,
BoxPtr FullBox
){
ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
RegionRec ScreenRegion;
RegionRec FullRegion;
BoxRec ScreenBox;
Bool ret;
ScreenBox.x1 = 0;
ScreenBox.y1 = 0;
ScreenBox.x2 = pScrn->virtualX;
ScreenBox.y2 = pScrn->virtualY;
if((FullBox->x1 > ScreenBox.x1) || (FullBox->y1 > ScreenBox.y1) ||
(FullBox->x2 < ScreenBox.x2) || (FullBox->y2 < ScreenBox.y2)) {
return FALSE;
}
if (FullBox->y2 < FullBox->y1) return FALSE;
if (FullBox->x2 < FullBox->x2) return FALSE;
REGION_INIT(pScreen, &ScreenRegion, &ScreenBox, 1);
REGION_INIT(pScreen, &FullRegion, FullBox, 1);
REGION_SUBTRACT(pScreen, &FullRegion, &FullRegion, &ScreenRegion);
ret = xf86InitFBManagerRegion(pScreen, &FullRegion);
REGION_UNINIT(pScreen, &ScreenRegion);
REGION_UNINIT(pScreen, &FullRegion);
return ret;
}
Bool
xf86InitFBManager(ScreenPtr pScreen, BoxPtr FullBox)
{
ScrnInfoPtr pScrn = xf86ScreenToScrn(pScreen);
RegionRec ScreenRegion;
RegionRec FullRegion;
BoxRec ScreenBox;
Bool ret;
ScreenBox.x1 = 0;
ScreenBox.y1 = 0;
ScreenBox.x2 = pScrn->virtualX;
ScreenBox.y2 = pScrn->virtualY;
if ((FullBox->x1 > ScreenBox.x1) || (FullBox->y1 > ScreenBox.y1) ||
(FullBox->x2 < ScreenBox.x2) || (FullBox->y2 < ScreenBox.y2)) {
return FALSE;
}
if (FullBox->y2 < FullBox->y1)
return FALSE;
if (FullBox->x2 < FullBox->x1)
return FALSE;
RegionInit(&ScreenRegion, &ScreenBox, 1);
RegionInit(&FullRegion, FullBox, 1);
RegionSubtract(&FullRegion, &FullRegion, &ScreenRegion);
ret = xf86InitFBManagerRegion(pScreen, &FullRegion);
RegionUninit(&ScreenRegion);
RegionUninit(&FullRegion);
return ret;
}
Bool
xf86InitFBManagerArea(
ScreenPtr pScreen,
int PixelArea,
int Verbosity
)
{
ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
xRectangle Rect[3];
RegionPtr pRegion, pScreenRegion;
int nRect;
Bool ret = FALSE;
if (PixelArea < (pScrn->displayWidth * pScrn->virtualY))
return FALSE;
Rect[0].x = Rect[0].y = 0;
Rect[0].width = pScrn->displayWidth;
Rect[0].height = PixelArea / pScrn->displayWidth;
nRect = 1;
/* Add a possible partial scanline */
if ((Rect[1].height = Rect[1].width = PixelArea % pScrn->displayWidth)) {
Rect[1].x = 0;
Rect[1].y = Rect[0].height;
Rect[1].height = 1;
nRect++;
}
/* Factor out virtual resolution */
pRegion = RECTS_TO_REGION(pScreen, nRect, Rect, 0);
if (pRegion) {
if (!REGION_NAR(pRegion)) {
Rect[2].x = Rect[2].y = 0;
Rect[2].width = pScrn->virtualX;
Rect[2].height = pScrn->virtualY;
pScreenRegion = RECTS_TO_REGION(pScreen, 1, &Rect[2], 0);
if (pScreenRegion) {
if (!REGION_NAR(pScreenRegion)) {
REGION_SUBTRACT(pScreen, pRegion, pRegion, pScreenRegion);
ret = xf86InitFBManagerRegion(pScreen, pRegion);
if (ret && xf86GetVerbosity() >= Verbosity) {
int scrnIndex = pScrn->scrnIndex;
xf86DrvMsgVerb(scrnIndex, X_INFO, Verbosity,
"Largest offscreen areas (with overlaps):\n");
if (Rect[2].width < Rect[0].width) {
xf86DrvMsgVerb(scrnIndex, X_INFO, Verbosity,
"\t%d x %d rectangle at %d,0\n",
Rect[0].width - Rect[2].width,
Rect[0].height,
Rect[2].width);
}
if (Rect[2].width < Rect[1].width) {
xf86DrvMsgVerb(scrnIndex, X_INFO, Verbosity,
"\t%d x %d rectangle at %d,0\n",
Rect[1].width - Rect[2].width,
Rect[0].height + Rect[1].height,
Rect[2].width);
}
if (Rect[2].height < Rect[0].height) {
xf86DrvMsgVerb(scrnIndex, X_INFO, Verbosity,
"\t%d x %d rectangle at 0,%d\n",
Rect[0].width,
Rect[0].height - Rect[2].height,
Rect[2].height);
}
if (Rect[1].height) {
xf86DrvMsgVerb(scrnIndex, X_INFO, Verbosity,
"\t%d x %d rectangle at 0,%d\n",
Rect[1].width,
Rect[0].height - Rect[2].height +
Rect[1].height,
Rect[2].height);
}
}
}
REGION_DESTROY(pScreen, pScreenRegion);
}
}
REGION_DESTROY(pScreen, pRegion);
}
return ret;
}
