675 lines
17 KiB
C
675 lines
17 KiB
C
/*
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*Copyright (C) 1994-2000 The XFree86 Project, Inc. All Rights Reserved.
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*
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*Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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*"Software"), to deal in the Software without restriction, including
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*without limitation the rights to use, copy, modify, merge, publish,
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*distribute, sublicense, and/or sell copies of the Software, and to
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*permit persons to whom the Software is furnished to do so, subject to
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*the following conditions:
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*
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*The above copyright notice and this permission notice shall be
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*included in all copies or substantial portions of the Software.
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*
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*THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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*EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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*MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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*NONINFRINGEMENT. IN NO EVENT SHALL THE XFREE86 PROJECT BE LIABLE FOR
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*ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
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*CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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*WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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*Except as contained in this notice, the name of the XFree86 Project
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*shall not be used in advertising or otherwise to promote the sale, use
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*or other dealings in this Software without prior written authorization
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*from the XFree86 Project.
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*
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* Authors: Dakshinamurthy Karra
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* Suhaib M Siddiqi
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* Peter Busch
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* Harold L Hunt II
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*/
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#ifdef HAVE_XWIN_CONFIG_H
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#include <xwin-config.h>
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#endif
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#include "win.h"
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/*
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* Local prototypes
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*/
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static int
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winListInstalledColormaps (ScreenPtr pScreen, Colormap *pmaps);
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static void
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winStoreColors (ColormapPtr pmap, int ndef, xColorItem *pdefs);
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static void
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winInstallColormap (ColormapPtr pmap);
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static void
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winUninstallColormap (ColormapPtr pmap);
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static void
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winResolveColor (unsigned short *pred,
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unsigned short *pgreen,
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unsigned short *pblue,
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VisualPtr pVisual);
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static Bool
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winCreateColormap (ColormapPtr pmap);
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static void
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winDestroyColormap (ColormapPtr pmap);
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static Bool
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winGetPaletteDIB (ScreenPtr pScreen, ColormapPtr pcmap);
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static Bool
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winGetPaletteDD (ScreenPtr pScreen, ColormapPtr pcmap);
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/*
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* Set screen functions for colormaps
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*/
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void
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winSetColormapFunctions (ScreenPtr pScreen)
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{
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pScreen->CreateColormap = winCreateColormap;
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pScreen->DestroyColormap = winDestroyColormap;
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pScreen->InstallColormap = winInstallColormap;
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pScreen->UninstallColormap = winUninstallColormap;
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pScreen->ListInstalledColormaps = winListInstalledColormaps;
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pScreen->StoreColors = winStoreColors;
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pScreen->ResolveColor = winResolveColor;
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}
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/* See Porting Layer Definition - p. 30 */
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/*
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* Walk the list of installed colormaps, filling the pmaps list
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* with the resource ids of the installed maps, and return
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* a count of the total number of installed maps.
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*/
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static int
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winListInstalledColormaps (ScreenPtr pScreen, Colormap *pmaps)
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{
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winScreenPriv(pScreen);
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/*
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* There will only be one installed colormap, so we only need
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* to return one id, and the count of installed maps will always
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* be one.
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*/
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*pmaps = pScreenPriv->pcmapInstalled->mid;
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return 1;
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}
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/* See Porting Layer Definition - p. 30 */
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/* See Programming Windows - p. 663 */
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static void
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winInstallColormap (ColormapPtr pColormap)
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{
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ScreenPtr pScreen = pColormap->pScreen;
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winScreenPriv(pScreen);
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ColormapPtr oldpmap = pScreenPriv->pcmapInstalled;
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#if CYGDEBUG
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winDebug ("winInstallColormap\n");
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#endif
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/* Did the colormap actually change? */
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if (pColormap != oldpmap)
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{
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#if CYGDEBUG
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winDebug ("winInstallColormap - Colormap has changed, attempt "
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"to install.\n");
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#endif
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/* Was there a previous colormap? */
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if (oldpmap != (ColormapPtr) None)
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{
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/* There was a previous colormap; tell clients it is gone */
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WalkTree (pColormap->pScreen, TellLostMap, (char *)&oldpmap->mid);
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}
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/* Install new colormap */
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pScreenPriv->pcmapInstalled = pColormap;
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WalkTree (pColormap->pScreen, TellGainedMap, (char *)&pColormap->mid);
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/* Call the engine specific colormap install procedure */
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if (!((*pScreenPriv->pwinInstallColormap) (pColormap)))
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{
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winErrorFVerb (2, "winInstallColormap - Screen specific colormap install "
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"procedure failed. Continuing, but colors may be "
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"messed up from now on.\n");
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}
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}
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/* Save a pointer to the newly installed colormap */
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pScreenPriv->pcmapInstalled = pColormap;
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}
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/* See Porting Layer Definition - p. 30 */
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static void
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winUninstallColormap (ColormapPtr pmap)
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{
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winScreenPriv(pmap->pScreen);
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ColormapPtr curpmap = pScreenPriv->pcmapInstalled;
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#if CYGDEBUG
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winDebug ("winUninstallColormap\n");
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#endif
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/* Is the colormap currently installed? */
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if (pmap != curpmap)
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{
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/* Colormap not installed, nothing to do */
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return;
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}
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/* Clear the installed colormap flag */
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pScreenPriv->pcmapInstalled = NULL;
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/*
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* NOTE: The default colormap does not get "uninstalled" before
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* it is destroyed.
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*/
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/* Install the default cmap in place of the cmap to be uninstalled */
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if (pmap->mid != pmap->pScreen->defColormap)
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{
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curpmap = (ColormapPtr) LookupIDByType(pmap->pScreen->defColormap,
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RT_COLORMAP);
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(*pmap->pScreen->InstallColormap) (curpmap);
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}
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}
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/* See Porting Layer Definition - p. 30 */
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static void
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winStoreColors (ColormapPtr pmap,
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int ndef,
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xColorItem *pdefs)
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{
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ScreenPtr pScreen = pmap->pScreen;
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winScreenPriv(pScreen);
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winCmapPriv(pmap);
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int i;
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unsigned short nRed, nGreen, nBlue;
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#if CYGDEBUG
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if (ndef != 1)
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winDebug ("winStoreColors - ndef: %d\n",
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ndef);
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#endif
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/* Save the new colors in the colormap privates */
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for (i = 0; i < ndef; ++i)
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{
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/* Adjust the colors from the X color spec to the Windows color spec */
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nRed = pdefs[i].red >> 8;
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nGreen = pdefs[i].green >> 8;
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nBlue = pdefs[i].blue >> 8;
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/* Copy the colors to a palette entry table */
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pCmapPriv->peColors[pdefs[0].pixel + i].peRed = nRed;
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pCmapPriv->peColors[pdefs[0].pixel + i].peGreen = nGreen;
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pCmapPriv->peColors[pdefs[0].pixel + i].peBlue = nBlue;
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/* Copy the colors to a RGBQUAD table */
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pCmapPriv->rgbColors[pdefs[0].pixel + i].rgbRed = nRed;
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pCmapPriv->rgbColors[pdefs[0].pixel + i].rgbGreen = nGreen;
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pCmapPriv->rgbColors[pdefs[0].pixel + i].rgbBlue = nBlue;
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#if CYGDEBUG
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winDebug ("winStoreColors - nRed %d nGreen %d nBlue %d\n",
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nRed, nGreen, nBlue);
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#endif
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}
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/* Call the engine specific store colors procedure */
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if (!((pScreenPriv->pwinStoreColors) (pmap, ndef, pdefs)))
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{
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winErrorFVerb (2, "winStoreColors - Engine cpecific color storage procedure "
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"failed. Continuing, but colors may be messed up from now "
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"on.\n");
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}
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}
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/* See Porting Layer Definition - p. 30 */
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static void
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winResolveColor (unsigned short *pred,
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unsigned short *pgreen,
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unsigned short *pblue,
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VisualPtr pVisual)
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{
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#if CYGDEBUG
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winDebug ("winResolveColor ()\n");
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#endif
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miResolveColor (pred, pgreen, pblue, pVisual);
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}
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/* See Porting Layer Definition - p. 29 */
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static Bool
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winCreateColormap (ColormapPtr pmap)
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{
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winPrivCmapPtr pCmapPriv = NULL;
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ScreenPtr pScreen = pmap->pScreen;
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winScreenPriv(pScreen);
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#if CYGDEBUG
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winDebug ("winCreateColormap\n");
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#endif
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/* Allocate colormap privates */
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if (!winAllocateCmapPrivates (pmap))
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{
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ErrorF ("winCreateColorma - Couldn't allocate cmap privates\n");
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return FALSE;
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}
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/* Get a pointer to the newly allocated privates */
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pCmapPriv = winGetCmapPriv (pmap);
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/*
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* FIXME: This is some evil hackery to help in handling some X clients
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* that expect the top pixel to be white. This "help" only lasts until
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* some client overwrites the top colormap entry.
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*
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* We don't want to actually allocate the top entry, as that causes
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* problems with X clients that need 7 planes (128 colors) in the default
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* colormap, such as Magic 7.1.
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*/
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pCmapPriv->rgbColors[WIN_NUM_PALETTE_ENTRIES - 1].rgbRed = 255;
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pCmapPriv->rgbColors[WIN_NUM_PALETTE_ENTRIES - 1].rgbGreen = 255;
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pCmapPriv->rgbColors[WIN_NUM_PALETTE_ENTRIES - 1].rgbBlue = 255;
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pCmapPriv->peColors[WIN_NUM_PALETTE_ENTRIES - 1].peRed = 255;
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pCmapPriv->peColors[WIN_NUM_PALETTE_ENTRIES - 1].peGreen = 255;
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pCmapPriv->peColors[WIN_NUM_PALETTE_ENTRIES - 1].peBlue = 255;
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/* Call the engine specific colormap initialization procedure */
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if (!((*pScreenPriv->pwinCreateColormap) (pmap)))
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{
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ErrorF ("winCreateColormap - Engine specific colormap creation "
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"procedure failed. Aborting.\n");
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return FALSE;
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}
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return TRUE;
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}
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/* See Porting Layer Definition - p. 29, 30 */
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static void
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winDestroyColormap (ColormapPtr pColormap)
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{
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winScreenPriv(pColormap->pScreen);
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winCmapPriv(pColormap);
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/* Call the engine specific colormap destruction procedure */
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if (!((*pScreenPriv->pwinDestroyColormap) (pColormap)))
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{
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winErrorFVerb (2, "winDestroyColormap - Engine specific colormap destruction "
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"procedure failed. Continuing, but it is possible that memory "
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"was leaked, or that colors will be messed up from now on.\n");
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}
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/* Free the colormap privates */
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free (pCmapPriv);
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winSetCmapPriv (pColormap, NULL);
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#if CYGDEBUG
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winDebug ("winDestroyColormap - Returning\n");
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#endif
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}
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/*
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* Internal function to load the palette used by the Shadow DIB
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*/
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static Bool
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winGetPaletteDIB (ScreenPtr pScreen, ColormapPtr pcmap)
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{
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winScreenPriv(pScreen);
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int i;
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Pixel pixel; /* Pixel == CARD32 */
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CARD16 nRed, nGreen, nBlue; /* CARD16 == unsigned short */
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UINT uiColorsRetrieved = 0;
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RGBQUAD rgbColors[WIN_NUM_PALETTE_ENTRIES];
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/* Get the color table for the screen */
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uiColorsRetrieved = GetDIBColorTable (pScreenPriv->hdcScreen,
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0,
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WIN_NUM_PALETTE_ENTRIES,
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rgbColors);
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if (uiColorsRetrieved == 0)
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{
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ErrorF ("winGetPaletteDIB - Could not retrieve screen color table\n");
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return FALSE;
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}
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#if CYGDEBUG
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winDebug ("winGetPaletteDIB - Retrieved %d colors from DIB\n",
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uiColorsRetrieved);
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#endif
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/* Set the DIB color table to the default screen palette */
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if (SetDIBColorTable (pScreenPriv->hdcShadow,
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0,
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uiColorsRetrieved,
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rgbColors) == 0)
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{
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ErrorF ("winGetPaletteDIB - SetDIBColorTable () failed\n");
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return FALSE;
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}
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/* Alloc each color in the DIB color table */
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for (i = 0; i < uiColorsRetrieved; ++i)
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{
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pixel = i;
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/* Extract the color values for current palette entry */
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nRed = rgbColors[i].rgbRed << 8;
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nGreen = rgbColors[i].rgbGreen << 8;
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nBlue = rgbColors[i].rgbBlue << 8;
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#if CYGDEBUG
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winDebug ("winGetPaletteDIB - Allocating a color: %d; "
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"%d %d %d\n",
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pixel, nRed, nGreen, nBlue);
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#endif
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/* Allocate a entry in the X colormap */
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if (AllocColor (pcmap,
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&nRed,
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&nGreen,
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&nBlue,
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&pixel,
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0) != Success)
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{
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ErrorF ("winGetPaletteDIB - AllocColor () failed, pixel %d\n",
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i);
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return FALSE;
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}
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if (i != pixel
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|| nRed != rgbColors[i].rgbRed
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|| nGreen != rgbColors[i].rgbGreen
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|| nBlue != rgbColors[i].rgbBlue)
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{
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winDebug ("winGetPaletteDIB - Got: %d; "
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"%d %d %d\n",
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(int) pixel, nRed, nGreen, nBlue);
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}
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/* FIXME: Not sure that this bit is needed at all */
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pcmap->red[i].co.local.red = nRed;
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pcmap->red[i].co.local.green = nGreen;
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pcmap->red[i].co.local.blue = nBlue;
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}
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/* System is using a colormap */
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/* Set the black and white pixel indices */
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pScreen->whitePixel = uiColorsRetrieved - 1;
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pScreen->blackPixel = 0;
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return TRUE;
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}
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/*
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* Internal function to load the standard system palette being used by DD
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*/
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static Bool
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winGetPaletteDD (ScreenPtr pScreen, ColormapPtr pcmap)
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{
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int i;
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Pixel pixel; /* Pixel == CARD32 */
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CARD16 nRed, nGreen, nBlue; /* CARD16 == unsigned short */
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UINT uiSystemPaletteEntries;
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LPPALETTEENTRY ppeColors = NULL;
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HDC hdc = NULL;
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/* Get a DC to obtain the default palette */
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hdc = GetDC (NULL);
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if (hdc == NULL)
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{
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ErrorF ("winGetPaletteDD - Couldn't get a DC\n");
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return FALSE;
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}
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/* Get the number of entries in the system palette */
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uiSystemPaletteEntries = GetSystemPaletteEntries (hdc,
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0, 0, NULL);
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if (uiSystemPaletteEntries == 0)
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{
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ErrorF ("winGetPaletteDD - Unable to determine number of "
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"system palette entries\n");
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return FALSE;
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}
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#if CYGDEBUG
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winDebug ("winGetPaletteDD - uiSystemPaletteEntries %d\n",
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uiSystemPaletteEntries);
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#endif
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/* Allocate palette entries structure */
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ppeColors = malloc (uiSystemPaletteEntries * sizeof (PALETTEENTRY));
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if (ppeColors == NULL)
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{
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ErrorF ("winGetPaletteDD - malloc () for colormap failed\n");
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return FALSE;
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}
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/* Get system palette entries */
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GetSystemPaletteEntries (hdc,
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0, uiSystemPaletteEntries, ppeColors);
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/* Allocate an X colormap entry for every system palette entry */
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for (i = 0; i < uiSystemPaletteEntries; ++i)
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{
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pixel = i;
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/* Extract the color values for current palette entry */
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nRed = ppeColors[i].peRed << 8;
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nGreen = ppeColors[i].peGreen << 8;
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nBlue = ppeColors[i].peBlue << 8;
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#if CYGDEBUG
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winDebug ("winGetPaletteDD - Allocating a color: %d; "
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"%d %d %d\n",
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pixel, nRed, nGreen, nBlue);
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#endif
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if (AllocColor (pcmap,
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&nRed,
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&nGreen,
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&nBlue,
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&pixel,
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0) != Success)
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{
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ErrorF ("winGetPaletteDD - AllocColor () failed, pixel %d\n",
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i);
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free (ppeColors);
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ppeColors = NULL;
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return FALSE;
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}
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pcmap->red[i].co.local.red = nRed;
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pcmap->red[i].co.local.green = nGreen;
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pcmap->red[i].co.local.blue = nBlue;
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}
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/* System is using a colormap */
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/* Set the black and white pixel indices */
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pScreen->whitePixel = uiSystemPaletteEntries - 1;
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pScreen->blackPixel = 0;
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/* Free colormap */
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if (ppeColors != NULL)
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{
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free (ppeColors);
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ppeColors = NULL;
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}
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/* Free the DC */
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if (hdc != NULL)
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{
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ReleaseDC (NULL, hdc);
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hdc = NULL;
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}
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return TRUE;
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}
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/*
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* Install the standard fb colormap, or the GDI colormap,
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* depending on the current screen depth.
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*/
|
|
|
|
Bool
|
|
winCreateDefColormap (ScreenPtr pScreen)
|
|
{
|
|
winScreenPriv(pScreen);
|
|
winScreenInfo *pScreenInfo = pScreenPriv->pScreenInfo;
|
|
unsigned short zero = 0, ones = 0xFFFF;
|
|
VisualPtr pVisual = pScreenPriv->pRootVisual;
|
|
ColormapPtr pcmap = NULL;
|
|
Pixel wp, bp;
|
|
|
|
#if CYGDEBUG
|
|
winDebug ("winCreateDefColormap\n");
|
|
#endif
|
|
|
|
/* Use standard fb colormaps for non palettized color modes */
|
|
if (pScreenInfo->dwBPP > 8)
|
|
{
|
|
winDebug ("winCreateDefColormap - Deferring to " \
|
|
"fbCreateDefColormap ()\n");
|
|
return fbCreateDefColormap (pScreen);
|
|
}
|
|
|
|
/*
|
|
* AllocAll for non-Dynamic visual classes,
|
|
* AllocNone for Dynamic visual classes.
|
|
*/
|
|
|
|
/*
|
|
* Dynamic visual classes allow the colors of the color map
|
|
* to be changed by clients.
|
|
*/
|
|
|
|
#if CYGDEBUG
|
|
winDebug ("winCreateDefColormap - defColormap: %d\n",
|
|
pScreen->defColormap);
|
|
#endif
|
|
|
|
/* Allocate an X colormap, owned by client 0 */
|
|
if (CreateColormap (pScreen->defColormap,
|
|
pScreen,
|
|
pVisual,
|
|
&pcmap,
|
|
(pVisual->class & DynamicClass) ? AllocNone : AllocAll,
|
|
0) != Success)
|
|
{
|
|
ErrorF ("winCreateDefColormap - CreateColormap failed\n");
|
|
return FALSE;
|
|
}
|
|
if (pcmap == NULL)
|
|
{
|
|
ErrorF ("winCreateDefColormap - Colormap could not be created\n");
|
|
return FALSE;
|
|
}
|
|
|
|
#if CYGDEBUG
|
|
winDebug ("winCreateDefColormap - Created a colormap\n");
|
|
#endif
|
|
|
|
/* Branch on the visual class */
|
|
if (!(pVisual->class & DynamicClass))
|
|
{
|
|
/* Branch on engine type */
|
|
if (pScreenInfo->dwEngine == WIN_SERVER_SHADOW_GDI)
|
|
{
|
|
/* Load the colors being used by the Shadow DIB */
|
|
if (!winGetPaletteDIB (pScreen, pcmap))
|
|
{
|
|
ErrorF ("winCreateDefColormap - Couldn't get DIB colors\n");
|
|
return FALSE;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
/* Load the colors from the default system palette */
|
|
if (!winGetPaletteDD (pScreen, pcmap))
|
|
{
|
|
ErrorF ("winCreateDefColormap - Couldn't get colors "
|
|
"for DD\n");
|
|
return FALSE;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
wp = pScreen->whitePixel;
|
|
bp = pScreen->blackPixel;
|
|
|
|
/* Allocate a black and white pixel */
|
|
if ((AllocColor (pcmap, &ones, &ones, &ones, &wp, 0) !=
|
|
Success)
|
|
||
|
|
(AllocColor (pcmap, &zero, &zero, &zero, &bp, 0) !=
|
|
Success))
|
|
{
|
|
ErrorF ("winCreateDefColormap - Couldn't allocate bp or wp\n");
|
|
return FALSE;
|
|
}
|
|
|
|
pScreen->whitePixel = wp;
|
|
pScreen->blackPixel = bp;
|
|
|
|
#if 0
|
|
/* Have to reserve first 10 and last ten pixels in DirectDraw windowed */
|
|
if (pScreenInfo->dwEngine != WIN_SERVER_SHADOW_GDI)
|
|
{
|
|
int k;
|
|
Pixel p;
|
|
|
|
for (k = 1; k < 10; ++k)
|
|
{
|
|
p = k;
|
|
if (AllocColor (pcmap, &ones, &ones, &ones, &p, 0) != Success)
|
|
FatalError ("Foo!\n");
|
|
}
|
|
|
|
for (k = 245; k < 255; ++k)
|
|
{
|
|
p = k;
|
|
if (AllocColor (pcmap, &zero, &zero, &zero, &p, 0) != Success)
|
|
FatalError ("Baz!\n");
|
|
}
|
|
}
|
|
#endif
|
|
}
|
|
|
|
/* Install the created colormap */
|
|
(*pScreen->InstallColormap)(pcmap);
|
|
|
|
#if CYGDEBUG
|
|
winDebug ("winCreateDefColormap - Returning\n");
|
|
#endif
|
|
|
|
return TRUE;
|
|
}
|