86 lines
		
	
	
		
			2.5 KiB
		
	
	
	
		
			C
		
	
	
	
			
		
		
	
	
			86 lines
		
	
	
		
			2.5 KiB
		
	
	
	
		
			C
		
	
	
	
/*
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 * Copyright 2006 Luc Verhaegen.
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 *
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 * Permission is hereby granted, free of charge, to any person obtaining a
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 * copy of this software and associated documentation files (the "Software"),
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 * to deal in the Software without restriction, including without limitation
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 * the rights to use, copy, modify, merge, publish, distribute, sub license,
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 * and/or sell copies of the Software, and to permit persons to whom the
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 * Software is furnished to do so, subject to the following conditions:
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 *
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 * The above copyright notice and this permission notice (including the
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 * next paragraph) shall be included in all copies or substantial portions
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 * of the Software.
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 *
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 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
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 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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 * DEALINGS IN THE SOFTWARE.
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 */
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#ifdef HAVE_XORG_CONFIG_H
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#include <xorg-config.h>
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#endif
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#include "xf86.h"
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#include "xf86DDC.h"
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#include <X11/Xatom.h>
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#include "property.h"
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#include "propertyst.h"
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#include <string.h>
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#define EDID1_ATOM_NAME         "XFree86_DDC_EDID1_RAWDATA"
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static void
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edidMakeAtom(int i, const char *name, CARD8 *data, int size)
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{
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    Atom atom;
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    unsigned char *atom_data;
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    if (!(atom_data = malloc(size*sizeof(CARD8))))
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	return;
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    atom = MakeAtom(name, strlen(name), TRUE);
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    memcpy(atom_data, data, size);
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    xf86RegisterRootWindowProperty(i, atom, XA_INTEGER, 8, size, atom_data);
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}
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static void
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addRootWindowProperties(ScrnInfoPtr pScrn, xf86MonPtr DDC)
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{
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    int scrnIndex = pScrn->scrnIndex;
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    if (DDC->flags & MONITOR_DISPLAYID) {
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	/* Don't bother, use RANDR already */
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	return;
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    } else if (DDC->ver.version == 1) {
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	int size = 128 +
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	    (DDC->flags & EDID_COMPLETE_RAWDATA ? DDC->no_sections * 128 : 0);
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	edidMakeAtom(scrnIndex, EDID1_ATOM_NAME, DDC->rawData, size);
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    } else {
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	xf86DrvMsg(scrnIndex, X_PROBED, "unexpected EDID version %d.%d\n",
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		DDC->ver.version, DDC->ver.revision);
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	return;
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    }
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}
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Bool
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xf86SetDDCproperties(ScrnInfoPtr pScrn, xf86MonPtr DDC)
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{
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    if (!pScrn || !pScrn->monitor || !DDC)
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        return FALSE;
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    if (DDC->flags & MONITOR_DISPLAYID)
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	;
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    else
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	xf86EdidMonitorSet(pScrn->scrnIndex, pScrn->monitor, DDC);
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    addRootWindowProperties(pScrn, DDC);
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    return TRUE;
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}
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