d5b16b037b
This reverts commit 1564c82417.
The drivers used the top bits of the usage_hint to store driver
private flags (intel, radeon, nouveau).
With EXA we need to get at this data so if we migrate the pixmap we
can create the correct type of pixmap in the driver, however this
commit truncates the usage_hint into 8-bit class and loses all the
good stuff.
Signed-off-by: Dave Airlie <airlied@gmail.com>
Reviewed-by: Keith Packard <keithp@keithp.com>
138 lines
3.3 KiB
C
138 lines
3.3 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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DevPrivateKeyRec xnestPixmapPrivateKeyRec;
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PixmapPtr
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xnestCreatePixmap(ScreenPtr pScreen, int width, int height, int depth,
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unsigned usage_hint)
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{
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PixmapPtr pPixmap;
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pPixmap = AllocatePixmap(pScreen, 0);
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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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pPixmap->usage_hint = usage_hint;
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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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FreePixmap(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 = { 0, 0, 0, 0 };
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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 = RegionCreate(NULL, 1);
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pTmpReg = RegionCreate(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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RegionReset(pTmpReg, &Box);
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RegionAppend(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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RegionReset(pTmpReg, &Box);
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RegionAppend(pReg, pTmpReg);
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}
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}
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RegionDestroy(pTmpReg);
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XDestroyImage(ximage);
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RegionValidate(pReg, &overlap);
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return pReg;
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}
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