4017d31902
over to new system. Need to update documentation and address some remaining vestiges of old system such as CursorRec structure, fb "offman" structure, and FontRec privates.
139 lines
3.6 KiB
C
139 lines
3.6 KiB
C
/*
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Copyright 1993 by Davor Matic
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Permission to use, copy, modify, distribute, and sell this software
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and its documentation for any purpose is hereby granted without fee,
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provided that the above copyright notice appear in all copies and that
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both that copyright notice and this permission notice appear in
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supporting documentation. Davor Matic makes no representations about
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the suitability of this software for any purpose. It is provided "as
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is" without express or implied warranty.
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*/
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#ifdef HAVE_XNEST_CONFIG_H
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#include <xnest-config.h>
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#endif
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#include <X11/X.h>
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#include <X11/Xproto.h>
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#include "regionstr.h"
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#include "pixmapstr.h"
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#include "scrnintstr.h"
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#include "regionstr.h"
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#include "gc.h"
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#include "servermd.h"
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#include "privates.h"
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#include "mi.h"
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#include "Xnest.h"
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#include "Display.h"
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#include "Screen.h"
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#include "XNPixmap.h"
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DevPrivateKey xnestPixmapPrivateKey = &xnestPixmapPrivateKey;
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PixmapPtr
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xnestCreatePixmap(ScreenPtr pScreen, int width, int height, int depth)
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{
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PixmapPtr pPixmap;
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pPixmap = AllocatePixmap(pScreen, sizeof(xnestPrivPixmap));
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if (!pPixmap)
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return NullPixmap;
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pPixmap->drawable.type = DRAWABLE_PIXMAP;
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pPixmap->drawable.class = 0;
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pPixmap->drawable.depth = depth;
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pPixmap->drawable.bitsPerPixel = depth;
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pPixmap->drawable.id = 0;
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pPixmap->drawable.x = 0;
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pPixmap->drawable.y = 0;
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pPixmap->drawable.width = width;
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pPixmap->drawable.height = height;
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pPixmap->drawable.pScreen = pScreen;
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pPixmap->drawable.serialNumber = NEXT_SERIAL_NUMBER;
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pPixmap->refcnt = 1;
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pPixmap->devKind = PixmapBytePad(width, depth);
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dixSetPrivate(&pPixmap->devPrivates, xnestPixmapPrivateKey,
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(char *)pPixmap + pScreen->totalPixmapSize);
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if (width && height)
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xnestPixmapPriv(pPixmap)->pixmap =
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XCreatePixmap(xnestDisplay,
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xnestDefaultWindows[pScreen->myNum],
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width, height, depth);
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else
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xnestPixmapPriv(pPixmap)->pixmap = 0;
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return pPixmap;
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}
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Bool
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xnestDestroyPixmap(PixmapPtr pPixmap)
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{
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if(--pPixmap->refcnt)
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return TRUE;
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XFreePixmap(xnestDisplay, xnestPixmap(pPixmap));
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dixFreePrivates(pPixmap->devPrivates);
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xfree(pPixmap);
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return TRUE;
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}
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RegionPtr
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xnestPixmapToRegion(PixmapPtr pPixmap)
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{
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XImage *ximage;
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register RegionPtr pReg, pTmpReg;
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register int x, y;
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unsigned long previousPixel, currentPixel;
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BoxRec Box;
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Bool overlap;
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ximage = XGetImage(xnestDisplay, xnestPixmap(pPixmap), 0, 0,
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pPixmap->drawable.width, pPixmap->drawable.height,
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1, XYPixmap);
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pReg = REGION_CREATE(pPixmap->drawable.pScreen, NULL, 1);
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pTmpReg = REGION_CREATE(pPixmap->drawable.pScreen, NULL, 1);
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if(!pReg || !pTmpReg) {
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XDestroyImage(ximage);
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return NullRegion;
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}
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for (y = 0; y < pPixmap->drawable.height; y++) {
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Box.y1 = y;
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Box.y2 = y + 1;
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previousPixel = 0L;
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for (x = 0; x < pPixmap->drawable.width; x++) {
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currentPixel = XGetPixel(ximage, x, y);
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if (previousPixel != currentPixel) {
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if (previousPixel == 0L) {
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/* left edge */
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Box.x1 = x;
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}
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else if (currentPixel == 0L) {
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/* right edge */
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Box.x2 = x;
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REGION_RESET(pPixmap->drawable.pScreen, pTmpReg, &Box);
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REGION_APPEND(pPixmap->drawable.pScreen, pReg, pTmpReg);
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}
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previousPixel = currentPixel;
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}
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}
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if (previousPixel != 0L) {
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/* right edge because of the end of pixmap */
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Box.x2 = pPixmap->drawable.width;
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REGION_RESET(pPixmap->drawable.pScreen, pTmpReg, &Box);
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REGION_APPEND(pPixmap->drawable.pScreen, pReg, pTmpReg);
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}
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}
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REGION_DESTROY(pPixmap->drawable.pScreen, pTmpReg);
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XDestroyImage(ximage);
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REGION_VALIDATE(pPixmap->drawable.pScreen, pReg, &overlap);
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return(pReg);
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}
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