357 lines
		
	
	
		
			8.7 KiB
		
	
	
	
		
			C
		
	
	
	
			
		
		
	
	
			357 lines
		
	
	
		
			8.7 KiB
		
	
	
	
		
			C
		
	
	
	
| /*
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| 
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| Copyright 1993 by Davor Matic
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| 
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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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| */
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| #include <dix-config.h>
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| 
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| #include <stdint.h>
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| 
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| #include <X11/X.h>
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| #include <X11/Xdefs.h>
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| #include <X11/Xproto.h>
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| 
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| #include <xcb/xcb.h>
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| #include <xcb/xcb_aux.h>
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| 
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| #include "gcstruct.h"
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| #include "windowstr.h"
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| #include "pixmapstr.h"
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| #include "scrnintstr.h"
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| #include <X11/fonts/fontstruct.h>
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| #include "mistruct.h"
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| #include "region.h"
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| 
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| #include "xnest-xcb.h"
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| 
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| #include "Display.h"
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| #include "XNGC.h"
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| #include "GCOps.h"
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| #include "Drawable.h"
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| #include "XNFont.h"
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| #include "Color.h"
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| 
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| DevPrivateKeyRec xnestGCPrivateKeyRec;
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| 
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| static GCFuncs xnestFuncs = {
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|     xnestValidateGC,
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|     xnestChangeGC,
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|     xnestCopyGC,
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|     xnestDestroyGC,
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|     xnestChangeClip,
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|     xnestDestroyClip,
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|     xnestCopyClip,
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| };
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| 
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| static GCOps xnestOps = {
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|     xnestFillSpans,
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|     xnestSetSpans,
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|     xnestPutImage,
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|     xnestCopyArea,
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|     xnestCopyPlane,
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|     xnestPolyPoint,
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|     xnestPolylines,
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|     xnestPolySegment,
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|     xnestPolyRectangle,
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|     xnestPolyArc,
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|     xnestFillPolygon,
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|     xnestPolyFillRect,
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|     xnestPolyFillArc,
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|     xnestPolyText8,
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|     xnestPolyText16,
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|     xnestImageText8,
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|     xnestImageText16,
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|     xnestImageGlyphBlt,
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|     xnestPolyGlyphBlt,
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|     xnestPushPixels
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| };
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| 
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| Bool
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| xnestCreateGC(GCPtr pGC)
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| {
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|     pGC->funcs = &xnestFuncs;
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|     pGC->ops = &xnestOps;
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| 
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|     pGC->miTranslate = 1;
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| 
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|     xnestGCPriv(pGC)->gc = xcb_generate_id(xnestUpstreamInfo.conn);
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|     xcb_create_gc(xnestUpstreamInfo.conn,
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|                   xnestGCPriv(pGC)->gc,
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|                   xnestDefaultDrawables[pGC->depth],
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|                   0,
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|                   NULL);
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| 
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|     return TRUE;
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| }
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| 
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| void
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| xnestValidateGC(GCPtr pGC, unsigned long changes, DrawablePtr pDrawable)
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| {
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| }
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| 
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| void
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| xnestChangeGC(GCPtr pGC, unsigned long mask)
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| {
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|     xcb_params_gc_t values;
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| 
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|     if (mask & GCFunction)
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|         values.function = pGC->alu;
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| 
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|     if (mask & GCPlaneMask)
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|         values.plane_mask = pGC->planemask;
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| 
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|     if (mask & GCForeground)
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|         values.foreground = xnestPixel(pGC->fgPixel);
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| 
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|     if (mask & GCBackground)
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|         values.background = xnestPixel(pGC->bgPixel);
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| 
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|     if (mask & GCLineWidth)
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|         values.line_width = pGC->lineWidth;
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| 
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|     if (mask & GCLineStyle)
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|         values.line_style = pGC->lineStyle;
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| 
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|     if (mask & GCCapStyle)
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|         values.cap_style = pGC->capStyle;
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| 
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|     if (mask & GCJoinStyle)
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|         values.join_style = pGC->joinStyle;
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| 
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|     if (mask & GCFillStyle)
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|         values.fill_style = pGC->fillStyle;
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| 
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|     if (mask & GCFillRule)
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|         values.fill_rule = pGC->fillRule;
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| 
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|     if (mask & GCTile) {
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|         if (pGC->tileIsPixel)
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|             mask &= ~GCTile;
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|         else
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|             values.tile = xnestPixmap(pGC->tile.pixmap);
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|     }
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| 
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|     if (mask & GCStipple)
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|         values.stipple = xnestPixmap(pGC->stipple);
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| 
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|     if (mask & GCTileStipXOrigin)
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|         values.tile_stipple_origin_x = pGC->patOrg.x;
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| 
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|     if (mask & GCTileStipYOrigin)
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|         values.tile_stipple_origin_y = pGC->patOrg.y;
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| 
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|     if (mask & GCFont)
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|         values.font = xnestFontPriv(pGC->font)->font_id;
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| 
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|     if (mask & GCSubwindowMode)
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|         values.subwindow_mode = pGC->subWindowMode;
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| 
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|     if (mask & GCGraphicsExposures)
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|         values.graphics_exposures = pGC->graphicsExposures;
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| 
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|     if (mask & GCClipXOrigin)
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|         values.clip_originX = pGC->clipOrg.x;
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| 
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|     if (mask & GCClipYOrigin)
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|         values.clip_originY = pGC->clipOrg.y;
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| 
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|     if (mask & GCClipMask)      /* this is handled in change clip */
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|         mask &= ~GCClipMask;
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| 
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|     if (mask & GCDashOffset)
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|         values.dash_offset = pGC->dashOffset;
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| 
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|     if (mask & GCDashList) {
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|         mask &= ~GCDashList;
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|         xcb_set_dashes(xnestUpstreamInfo.conn,
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|                        xnest_upstream_gc(pGC),
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|                        pGC->dashOffset,
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|                        pGC->numInDashList,
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|                        (uint8_t*) pGC->dash);
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|     }
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| 
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|     if (mask & GCArcMode)
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|         values.arc_mode = pGC->arcMode;
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| 
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|     if (mask)
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|         xcb_aux_change_gc(xnestUpstreamInfo.conn,
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|                           xnest_upstream_gc(pGC),
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|                           mask,
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|                           &values);
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| }
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| 
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| void
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| xnestCopyGC(GCPtr pGCSrc, unsigned long mask, GCPtr pGCDst)
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| {
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|     xcb_copy_gc(xnestUpstreamInfo.conn,
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|                 xnestGC(pGCSrc),
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|                 xnestGC(pGCDst),
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|                 mask);
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| }
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| 
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| void
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| xnestDestroyGC(GCPtr pGC)
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| {
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|     xcb_free_gc(xnestUpstreamInfo.conn, xnestGC(pGC));
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| }
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| 
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| void
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| xnestChangeClip(GCPtr pGC, int type, void *pValue, int nRects)
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| {
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|     xnestDestroyClip(pGC);
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| 
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|     switch (type) {
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|     case CT_NONE:
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|         {
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|             uint32_t pixmap = XCB_PIXMAP_NONE;
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|             xcb_change_gc(xnestUpstreamInfo.conn,
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|                           xnest_upstream_gc(pGC),
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|                           XCB_GC_CLIP_MASK,
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|                           &pixmap);
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|         }
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|         pValue = NULL;
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|         break;
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| 
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|     case CT_REGION:
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|         {
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|             nRects = RegionNumRects((RegionPtr) pValue);
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|             xcb_rectangle_t *rects= calloc(nRects, sizeof(xcb_rectangle_t));
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|             if (rects == NULL) {
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|                 ErrorF("xnestChangeClip: memory alloc failure");
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|                 return;
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|             }
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|             BoxPtr pBox = RegionRects((RegionPtr) pValue);
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|             for (int i = nRects; i-- > 0;)
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|                 rects[i] = (xcb_rectangle_t) {
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|                     .x = pBox[i].x1,
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|                     .y = pBox[i].y1,
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|                     .width = pBox[i].x2 - pBox[i].x1,
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|                     .height = pBox[i].y2 - pBox[i].y1,
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|                 };
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|             xcb_set_clip_rectangles(
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|                 xnestUpstreamInfo.conn,
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|                 XCB_CLIP_ORDERING_UNSORTED,
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|                 xnest_upstream_gc(pGC),
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|                 0,
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|                 0,
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|                 nRects,
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|                 rects);
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| 
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|             free(rects);
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|         }
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|         break;
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| 
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|     case CT_PIXMAP:
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|         {
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|             uint32_t val = xnestPixmap((PixmapPtr) pValue);
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|             xcb_change_gc(xnestUpstreamInfo.conn,
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|                           xnest_upstream_gc(pGC),
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|                           XCB_GC_CLIP_MASK,
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|                           &val);
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|         }
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|         /*
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|          * Need to change into region, so subsequent uses are with
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|          * current pixmap contents.
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|          */
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|         pGC->clientClip = (*pGC->pScreen->BitmapToRegion) ((PixmapPtr) pValue);
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|         dixDestroyPixmap((PixmapPtr) pValue, 0);
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|         pValue = pGC->clientClip;
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|         break;
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| 
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|     case CT_UNSORTED:
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|         xcb_set_clip_rectangles(
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|             xnestUpstreamInfo.conn,
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|             XCB_CLIP_ORDERING_UNSORTED,
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|             xnest_upstream_gc(pGC),
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|             pGC->clipOrg.x, pGC->clipOrg.y,
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|             nRects,
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|             (xcb_rectangle_t*)pValue);
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|         break;
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| 
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|     case CT_YSORTED:
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|         xcb_set_clip_rectangles(
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|             xnestUpstreamInfo.conn,
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|             XCB_CLIP_ORDERING_Y_SORTED,
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|             xnest_upstream_gc(pGC),
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|             pGC->clipOrg.x,
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|             pGC->clipOrg.y,
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|             nRects,
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|             (xcb_rectangle_t*)pValue);
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|         break;
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| 
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|     case CT_YXSORTED:
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|         xcb_set_clip_rectangles(
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|             xnestUpstreamInfo.conn,
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|             XCB_CLIP_ORDERING_YX_SORTED,
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|             xnest_upstream_gc(pGC),
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|             pGC->clipOrg.x,
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|             pGC->clipOrg.y,
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|             nRects,
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|             (xcb_rectangle_t*)pValue);
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| 
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|         break;
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| 
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|     case CT_YXBANDED:
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|         xcb_set_clip_rectangles(
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|             xnestUpstreamInfo.conn,
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|             XCB_CLIP_ORDERING_YX_BANDED,
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|             xnest_upstream_gc(pGC),
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|             pGC->clipOrg.x,
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|             pGC->clipOrg.y,
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|             nRects,
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|             (xcb_rectangle_t*)pValue);
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|         break;
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|     }
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| 
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|     switch (type) {
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|     default:
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|         break;
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| 
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|     case CT_UNSORTED:
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|     case CT_YSORTED:
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|     case CT_YXSORTED:
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|     case CT_YXBANDED:
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|         /* server clip representation is a region */
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|         pGC->clientClip = RegionFromRects(nRects, (xRectangle *) pValue, type);
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|         free(pValue);
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|         pValue = pGC->clientClip;
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|         break;
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|     }
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| 
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|     pGC->clientClip = pValue;
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| }
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| 
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| void
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| xnestDestroyClip(GCPtr pGC)
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| {
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|     if (pGC->clientClip) {
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|         RegionDestroy(pGC->clientClip);
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|         uint32_t val = XCB_PIXMAP_NONE;
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|         xcb_change_gc(xnestUpstreamInfo.conn,
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|                       xnest_upstream_gc(pGC),
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|                       XCB_GC_CLIP_MASK,
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|                       &val);
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|         pGC->clientClip = NULL;
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|     }
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| }
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| 
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| void
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| xnestCopyClip(GCPtr pGCDst, GCPtr pGCSrc)
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| {
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|     if (pGCSrc->clientClip) {
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|         RegionPtr pRgn = RegionCreate(NULL, 1);
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|         RegionCopy(pRgn, pGCSrc->clientClip);
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|         xnestChangeClip(pGCDst, CT_REGION, pRgn, 0);
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|     } else {
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|         xnestDestroyClip(pGCDst);
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|     }
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| }
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