xserver-multidpi/hw/xnest/Pixmap.c
Keith Packard 9838b7032e Introduce a consistent coding style
This is strictly the application of the script 'x-indent-all.sh'
from util/modular. Compared to the patch that Daniel posted in
January, I've added a few indent flags:

	-bap
	-psl
	-T PrivatePtr
	-T pmWait
	-T _XFUNCPROTOBEGIN
	-T _XFUNCPROTOEND
	-T _X_EXPORT

The typedefs were needed to make the output of sdksyms.sh match the
previous output, otherwise, the code is formatted badly enough that
sdksyms.sh generates incorrect output.

The generated code was compared with the previous version and found to
be essentially identical -- "assert" line numbers and BUILD_TIME were
the only differences found.

The comparison was done with this script:

dir1=$1
dir2=$2

for dir in $dir1 $dir2; do
	(cd $dir && find . -name '*.o' | while read file; do
		dir=`dirname $file`
		base=`basename $file .o`
		dump=$dir/$base.dump
		objdump -d $file > $dump
	done)
done

find $dir1 -name '*.dump' | while read dump; do
	otherdump=`echo $dump | sed "s;$dir1;$dir2;"`
	diff -u $dump $otherdump
done

Signed-off-by: Keith Packard <keithp@keithp.com>
Acked-by: Daniel Stone <daniel@fooishbar.org>
Acked-by: Alan Coopersmith <alan.coopersmith@oracle.com>
2012-03-21 13:54:42 -07:00

137 lines
3.7 KiB
C

/*
Copyright 1993 by Davor Matic
Permission to use, copy, modify, distribute, and sell this software
and its documentation for any purpose is hereby granted without fee,
provided that the above copyright notice appear in all copies and that
both that copyright notice and this permission notice appear in
supporting documentation. Davor Matic makes no representations about
the suitability of this software for any purpose. It is provided "as
is" without express or implied warranty.
*/
#ifdef HAVE_XNEST_CONFIG_H
#include <xnest-config.h>
#endif
#include <X11/X.h>
#include <X11/Xproto.h>
#include "regionstr.h"
#include "pixmapstr.h"
#include "scrnintstr.h"
#include "gc.h"
#include "servermd.h"
#include "privates.h"
#include "mi.h"
#include "Xnest.h"
#include "Display.h"
#include "Screen.h"
#include "XNPixmap.h"
DevPrivateKeyRec xnestPixmapPrivateKeyRec;
PixmapPtr
xnestCreatePixmap(ScreenPtr pScreen, int width, int height, int depth,
unsigned usage_hint)
{
PixmapPtr pPixmap;
pPixmap = AllocatePixmap(pScreen, 0);
if (!pPixmap)
return NullPixmap;
pPixmap->drawable.type = DRAWABLE_PIXMAP;
pPixmap->drawable.class = 0;
pPixmap->drawable.depth = depth;
pPixmap->drawable.bitsPerPixel = depth;
pPixmap->drawable.id = 0;
pPixmap->drawable.x = 0;
pPixmap->drawable.y = 0;
pPixmap->drawable.width = width;
pPixmap->drawable.height = height;
pPixmap->drawable.pScreen = pScreen;
pPixmap->drawable.serialNumber = NEXT_SERIAL_NUMBER;
pPixmap->refcnt = 1;
pPixmap->devKind = PixmapBytePad(width, depth);
pPixmap->usage_hint = usage_hint;
if (width && height)
xnestPixmapPriv(pPixmap)->pixmap =
XCreatePixmap(xnestDisplay,
xnestDefaultWindows[pScreen->myNum],
width, height, depth);
else
xnestPixmapPriv(pPixmap)->pixmap = 0;
return pPixmap;
}
Bool
xnestDestroyPixmap(PixmapPtr pPixmap)
{
if (--pPixmap->refcnt)
return TRUE;
XFreePixmap(xnestDisplay, xnestPixmap(pPixmap));
FreePixmap(pPixmap);
return TRUE;
}
RegionPtr
xnestPixmapToRegion(PixmapPtr pPixmap)
{
XImage *ximage;
register RegionPtr pReg, pTmpReg;
register int x, y;
unsigned long previousPixel, currentPixel;
BoxRec Box = { 0, 0, 0, 0 };
Bool overlap;
ximage = XGetImage(xnestDisplay, xnestPixmap(pPixmap), 0, 0,
pPixmap->drawable.width, pPixmap->drawable.height,
1, XYPixmap);
pReg = RegionCreate(NULL, 1);
pTmpReg = RegionCreate(NULL, 1);
if (!pReg || !pTmpReg) {
XDestroyImage(ximage);
return NullRegion;
}
for (y = 0; y < pPixmap->drawable.height; y++) {
Box.y1 = y;
Box.y2 = y + 1;
previousPixel = 0L;
for (x = 0; x < pPixmap->drawable.width; x++) {
currentPixel = XGetPixel(ximage, x, y);
if (previousPixel != currentPixel) {
if (previousPixel == 0L) {
/* left edge */
Box.x1 = x;
}
else if (currentPixel == 0L) {
/* right edge */
Box.x2 = x;
RegionReset(pTmpReg, &Box);
RegionAppend(pReg, pTmpReg);
}
previousPixel = currentPixel;
}
}
if (previousPixel != 0L) {
/* right edge because of the end of pixmap */
Box.x2 = pPixmap->drawable.width;
RegionReset(pTmpReg, &Box);
RegionAppend(pReg, pTmpReg);
}
}
RegionDestroy(pTmpReg);
XDestroyImage(ximage);
RegionValidate(pReg, &overlap);
return pReg;
}