163 lines
5.0 KiB
C
163 lines
5.0 KiB
C
/***********************************************************
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Copyright 1987, 1998 The Open Group
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Permission to use, copy, modify, distribute, and sell this software and its
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documentation for any purpose is hereby granted without fee, provided that
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the above copyright notice appear in all copies and that both that
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copyright notice and this permission notice appear in supporting
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documentation.
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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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 NONINFRINGEMENT. IN NO EVENT SHALL THE
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OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
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AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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Except as contained in this notice, the name of The Open Group shall not be
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used in advertising or otherwise to promote the sale, use or other dealings
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in this Software without prior written authorization from The Open Group.
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Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.
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All Rights Reserved
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Permission to use, copy, modify, and distribute this software and its
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documentation for any purpose and without fee is hereby granted,
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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, and that the name of Digital not be
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used in advertising or publicity pertaining to distribution of the
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software without specific, written prior permission.
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DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
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ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
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DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
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ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
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WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
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ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
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SOFTWARE.
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******************************************************************/
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#ifdef HAVE_DIX_CONFIG_H
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#include <dix-config.h>
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#endif
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#include <X11/X.h>
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#include "scrnintstr.h"
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#include "colormapst.h"
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#include "resource.h"
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#include "micmap.h"
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#include "mfb.h"
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/* A monochrome frame buffer is a static gray colormap with two entries.
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* We have a "required list" of length 1. Because we can only support 1
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* colormap, we never have to change it, but we may have to change the
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* name we call it. If someone installs a new colormap, we know it must
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* look just like the old one (because we've checked in dispatch that it was
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* a valid colormap identifier, and all the colormap IDs for this device
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* look the same). Nevertheless, we still have to uninstall the old colormap
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* and install the new one. Similarly, if someone uninstalls a colormap,
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* we have to install the default map, even though we know those two looked
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* alike.
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* The required list concept is pretty much irrelevant when you can only
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* have one map installed at a time.
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*/
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int
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mfbListInstalledColormaps(pScreen, pmaps)
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ScreenPtr pScreen;
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Colormap *pmaps;
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{
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return miListInstalledColormaps(pScreen, pmaps);
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}
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void
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mfbInstallColormap(pmap)
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ColormapPtr pmap;
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{
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miInstallColormap(pmap);
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}
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void
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mfbUninstallColormap(pmap)
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ColormapPtr pmap;
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{
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miUninstallColormap(pmap);
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}
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/*ARGSUSED*/
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void
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mfbResolveColor (pred, pgreen, pblue, pVisual)
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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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/*
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* Gets intensity from RGB. If intensity is >= half, pick white, else
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* pick black. This may well be more trouble than it's worth.
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*/
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*pred = *pgreen = *pblue =
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(((30L * *pred +
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59L * *pgreen +
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11L * *pblue) >> 8) >= (((1<<8)-1)*50)) ? ~0 : 0;
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}
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Bool
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mfbCreateColormap(pMap)
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ColormapPtr pMap;
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{
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ScreenPtr pScreen;
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unsigned short red0, green0, blue0;
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unsigned short red1, green1, blue1;
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Pixel pix;
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pScreen = pMap->pScreen;
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if (pScreen->whitePixel == 0)
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{
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red0 = green0 = blue0 = ~0;
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red1 = green1 = blue1 = 0;
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}
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else
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{
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red0 = green0 = blue0 = 0;
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red1 = green1 = blue1 = ~0;
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}
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/* this is a monochrome colormap, it only has two entries, just fill
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* them in by hand. If it were a more complex static map, it would be
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* worth writing a for loop or three to initialize it */
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/* this will be pixel 0 */
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pix = 0;
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if (AllocColor(pMap, &red0, &green0, &blue0, &pix, 0) != Success)
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return FALSE;
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/* this will be pixel 1 */
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if (AllocColor(pMap, &red1, &green1, &blue1, &pix, 0) != Success)
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return FALSE;
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return TRUE;
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}
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/*ARGSUSED*/
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void
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mfbDestroyColormap (pMap)
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ColormapPtr pMap;
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{
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return;
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}
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Bool
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mfbCreateDefColormap (pScreen)
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ScreenPtr pScreen;
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{
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return miCreateDefColormap(pScreen);
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}
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