xserver

xserver with xephyr scale patch
git clone https://git.neptards.moe/u3shit/xserver.git
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ddcProperty.c (2530B)

      1 /*
      2  * Copyright 2006 Luc Verhaegen.
      3  *
      4  * Permission is hereby granted, free of charge, to any person obtaining a
      5  * copy of this software and associated documentation files (the "Software"),
      6  * to deal in the Software without restriction, including without limitation
      7  * the rights to use, copy, modify, merge, publish, distribute, sub license,
      8  * and/or sell copies of the Software, and to permit persons to whom the
      9  * Software is furnished to do so, subject to the following conditions:
     10  *
     11  * The above copyright notice and this permission notice (including the
     12  * next paragraph) shall be included in all copies or substantial portions
     13  * of the Software.
     14  *
     15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     17  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
     18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
     19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
     20  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
     21  * DEALINGS IN THE SOFTWARE.
     22  */
     23 
     24 #ifdef HAVE_XORG_CONFIG_H
     25 #include <xorg-config.h>
     26 #endif
     27 
     28 #include "xf86.h"
     29 #include "xf86DDC.h"
     30 #include "xf86Priv.h"
     31 #include <X11/Xatom.h>
     32 #include "property.h"
     33 #include "propertyst.h"
     34 #include <string.h>
     35 
     36 #define EDID1_ATOM_NAME         "XFree86_DDC_EDID1_RAWDATA"
     37 
     38 static int
     39 edidSize(const xf86MonPtr DDC)
     40 {
     41     int ret = 128;
     42 
     43     if (DDC->flags & EDID_COMPLETE_RAWDATA)
     44        ret += DDC->no_sections * 128;
     45 
     46     return ret;
     47 }
     48 
     49 static void
     50 setRootWindowEDID(ScreenPtr pScreen, xf86MonPtr DDC)
     51 {
     52     Atom atom = MakeAtom(EDID1_ATOM_NAME, strlen(EDID1_ATOM_NAME), TRUE);
     53 
     54     dixChangeWindowProperty(serverClient, pScreen->root, atom, XA_INTEGER,
     55                             8, PropModeReplace, edidSize(DDC), DDC->rawData,
     56                             FALSE);
     57 }
     58 
     59 static void
     60 addEDIDProp(CallbackListPtr *pcbl, void *scrn, void *screen)
     61 {
     62     ScreenPtr pScreen = screen;
     63     ScrnInfoPtr pScrn = scrn;
     64 
     65     if (xf86ScreenToScrn(pScreen) == pScrn)
     66         setRootWindowEDID(pScreen, pScrn->monitor->DDC);
     67 }
     68 
     69 Bool
     70 xf86SetDDCproperties(ScrnInfoPtr pScrn, xf86MonPtr DDC)
     71 {
     72     if (!pScrn || !pScrn->monitor || !DDC)
     73         return FALSE;
     74 
     75     xf86EdidMonitorSet(pScrn->scrnIndex, pScrn->monitor, DDC);
     76 
     77     if (xf86Initialising)
     78         AddCallback(&RootWindowFinalizeCallback, addEDIDProp, pScrn);
     79     else
     80         setRootWindowEDID(pScrn->pScreen, DDC);
     81 
     82     return TRUE;
     83 }