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authormarha <marha@users.sourceforge.net>2009-07-25 19:39:46 +0000
committermarha <marha@users.sourceforge.net>2009-07-25 19:39:46 +0000
commit4a3dbb926ae3f5410198d7cc4f4ebe4f62eebf05 (patch)
treec1e02b9d3509aa97703aa4b540d4cd22ec4600ed /xorg-server/mfb/mfbcmap.c
parentdc3c299dd0995549e2a6973ca0f25b254afd38a5 (diff)
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Added xorg-server-1.6.2.tar.gz
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-/***********************************************************
-
-Copyright 1987, 1998 The Open Group
-
-Permission to use, copy, modify, distribute, and sell this software and its
-documentation for any purpose is hereby granted without fee, provided that
-the above copyright notice appear in all copies and that both that
-copyright notice and this permission notice appear in supporting
-documentation.
-
-The above copyright notice and this permission notice shall be included in
-all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
-AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
-CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-Except as contained in this notice, the name of The Open Group shall not be
-used in advertising or otherwise to promote the sale, use or other dealings
-in this Software without prior written authorization from The Open Group.
-
-
-Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.
-
- All Rights Reserved
-
-Permission to use, copy, modify, and distribute this software and its
-documentation for any purpose and without fee is hereby granted,
-provided that the above copyright notice appear in all copies and that
-both that copyright notice and this permission notice appear in
-supporting documentation, and that the name of Digital not be
-used in advertising or publicity pertaining to distribution of the
-software without specific, written prior permission.
-
-DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
-ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
-DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
-ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
-WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
-ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
-SOFTWARE.
-
-******************************************************************/
-#ifdef HAVE_DIX_CONFIG_H
-#include <dix-config.h>
-#endif
-
-#include <X11/X.h>
-#include "scrnintstr.h"
-#include "colormapst.h"
-#include "resource.h"
-#include "micmap.h"
-#include "mfb.h"
-
-/* A monochrome frame buffer is a static gray colormap with two entries.
- * We have a "required list" of length 1. Because we can only support 1
- * colormap, we never have to change it, but we may have to change the
- * name we call it. If someone installs a new colormap, we know it must
- * look just like the old one (because we've checked in dispatch that it was
- * a valid colormap identifier, and all the colormap IDs for this device
- * look the same). Nevertheless, we still have to uninstall the old colormap
- * and install the new one. Similarly, if someone uninstalls a colormap,
- * we have to install the default map, even though we know those two looked
- * alike.
- * The required list concept is pretty much irrelevant when you can only
- * have one map installed at a time.
- */
-
-int
-mfbListInstalledColormaps(pScreen, pmaps)
- ScreenPtr pScreen;
- Colormap *pmaps;
-{
- return miListInstalledColormaps(pScreen, pmaps);
-}
-
-
-void
-mfbInstallColormap(pmap)
- ColormapPtr pmap;
-{
- miInstallColormap(pmap);
-}
-
-void
-mfbUninstallColormap(pmap)
- ColormapPtr pmap;
-{
- miUninstallColormap(pmap);
-}
-
-/*ARGSUSED*/
-void
-mfbResolveColor (pred, pgreen, pblue, pVisual)
- unsigned short *pred;
- unsigned short *pgreen;
- unsigned short *pblue;
- VisualPtr pVisual;
-{
- /*
- * Gets intensity from RGB. If intensity is >= half, pick white, else
- * pick black. This may well be more trouble than it's worth.
- */
- *pred = *pgreen = *pblue =
- (((30L * *pred +
- 59L * *pgreen +
- 11L * *pblue) >> 8) >= (((1<<8)-1)*50)) ? ~0 : 0;
-}
-
-Bool
-mfbCreateColormap(pMap)
- ColormapPtr pMap;
-{
- ScreenPtr pScreen;
- unsigned short red0, green0, blue0;
- unsigned short red1, green1, blue1;
- Pixel pix;
-
- pScreen = pMap->pScreen;
- if (pScreen->whitePixel == 0)
- {
- red0 = green0 = blue0 = ~0;
- red1 = green1 = blue1 = 0;
- }
- else
- {
- red0 = green0 = blue0 = 0;
- red1 = green1 = blue1 = ~0;
- }
-
- /* this is a monochrome colormap, it only has two entries, just fill
- * them in by hand. If it were a more complex static map, it would be
- * worth writing a for loop or three to initialize it */
-
- /* this will be pixel 0 */
- pix = 0;
- if (AllocColor(pMap, &red0, &green0, &blue0, &pix, 0) != Success)
- return FALSE;
-
- /* this will be pixel 1 */
- if (AllocColor(pMap, &red1, &green1, &blue1, &pix, 0) != Success)
- return FALSE;
- return TRUE;
-}
-
-/*ARGSUSED*/
-void
-mfbDestroyColormap (pMap)
- ColormapPtr pMap;
-{
- return;
-}
-
-Bool
-mfbCreateDefColormap (pScreen)
- ScreenPtr pScreen;
-{
- return miCreateDefColormap(pScreen);
-}