xserver-multidpi/hw/xfree86/xaa/xaaOverlay.c
Daniel Stone 733d42065f XFree86: Remove usage of alloca
Replace with heap allocations.
2007-11-05 14:34:42 +00:00

130 lines
3.2 KiB
C

#ifdef HAVE_XORG_CONFIG_H
#include <xorg-config.h>
#endif
#include "misc.h"
#include "xf86.h"
#include "xf86_OSproc.h"
#include <X11/X.h>
#include "scrnintstr.h"
#include "windowstr.h"
#include "xf86str.h"
#include "xaa.h"
#include "xaalocal.h"
#include "xaawrap.h"
#include "gcstruct.h"
#include "pixmapstr.h"
#include "mioverlay.h"
#ifdef PANORAMIX
#include "panoramiX.h"
#include "panoramiXsrv.h"
#endif
static void
XAACopyWindow8_32(
WindowPtr pWin,
DDXPointRec ptOldOrg,
RegionPtr prgnSrc
){
DDXPointPtr pptSrc, ppt;
RegionRec rgnDst;
BoxPtr pbox;
int dx, dy, nbox;
WindowPtr pwinRoot;
ScreenPtr pScreen = pWin->drawable.pScreen;
XAAInfoRecPtr infoRec =
GET_XAAINFORECPTR_FROM_DRAWABLE((&pWin->drawable));
Bool doUnderlay = miOverlayCopyUnderlay(pScreen);
RegionPtr borderClip = &pWin->borderClip;
Bool freeReg = FALSE;
if (!infoRec->pScrn->vtSema || !infoRec->ScreenToScreenBitBlt ||
(infoRec->ScreenToScreenBitBltFlags & NO_PLANEMASK))
{
XAA_SCREEN_PROLOGUE (pScreen, CopyWindow);
if(infoRec->pScrn->vtSema && infoRec->NeedToSync) {
(*infoRec->Sync)(infoRec->pScrn);
infoRec->NeedToSync = FALSE;
}
(*pScreen->CopyWindow) (pWin, ptOldOrg, prgnSrc);
XAA_SCREEN_EPILOGUE (pScreen, CopyWindow, XAACopyWindow8_32);
return;
}
pwinRoot = WindowTable[pScreen->myNum];
if(doUnderlay)
freeReg = miOverlayCollectUnderlayRegions(pWin, &borderClip);
REGION_NULL(pScreen, &rgnDst);
dx = ptOldOrg.x - pWin->drawable.x;
dy = ptOldOrg.y - pWin->drawable.y;
REGION_TRANSLATE(pScreen, prgnSrc, -dx, -dy);
REGION_INTERSECT(pScreen, &rgnDst, borderClip, prgnSrc);
pbox = REGION_RECTS(&rgnDst);
nbox = REGION_NUM_RECTS(&rgnDst);
if(!nbox ||
!(pptSrc = (DDXPointPtr )xalloc(nbox * sizeof(DDXPointRec)))) {
REGION_UNINIT(pScreen, &rgnDst);
return;
}
ppt = pptSrc;
while(nbox--) {
ppt->x = pbox->x1 + dx;
ppt->y = pbox->y1 + dy;
ppt++; pbox++;
}
infoRec->ScratchGC.planemask = doUnderlay ? 0x00ffffff : 0xff000000;
infoRec->ScratchGC.alu = GXcopy;
XAADoBitBlt((DrawablePtr)pwinRoot, (DrawablePtr)pwinRoot,
&(infoRec->ScratchGC), &rgnDst, pptSrc);
xfree(pptSrc);
REGION_UNINIT(pScreen, &rgnDst);
if(freeReg)
REGION_DESTROY(pScreen, borderClip);
}
static void
XAASetColorKey8_32(
ScreenPtr pScreen,
int nbox,
BoxPtr pbox
){
XAAInfoRecPtr infoRec = GET_XAAINFORECPTR_FROM_SCREEN(pScreen);
ScrnInfoPtr pScrn = infoRec->pScrn;
/* I'm counting on writes being clipped away while switched away.
If this isn't going to be true then I need to be wrapping instead. */
if(!infoRec->pScrn->vtSema) return;
(*infoRec->FillSolidRects)(pScrn, pScrn->colorKey << 24, GXcopy,
0xff000000, nbox, pbox);
SET_SYNC_FLAG(infoRec);
}
void
XAASetupOverlay8_32Planar(ScreenPtr pScreen)
{
XAAInfoRecPtr infoRec = GET_XAAINFORECPTR_FROM_SCREEN(pScreen);
int i;
pScreen->CopyWindow = XAACopyWindow8_32;
if(!(infoRec->FillSolidRectsFlags & NO_PLANEMASK))
miOverlaySetTransFunction(pScreen, XAASetColorKey8_32);
infoRec->FullPlanemask = ~0;
for(i = 0; i < 32; i++) /* haven't thought about this much */
infoRec->FullPlanemasks[i] = ~0;
}