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/* $XFree86$ */
/*
* Copyright 2001-2004 Red Hat Inc., Durham, North Carolina.
*
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation on the rights to use, copy, modify, merge,
* publish, distribute, sublicense, and/or sell copies of the Software,
* and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) 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
* NON-INFRINGEMENT. IN NO EVENT SHALL RED HAT AND/OR THEIR SUPPLIERS
* 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.
*/
/*
* Authors:
* Kevin E. Martin <kem@redhat.com>
*
*/
/** \file
* Colormap support. */
#ifdef HAVE_DMX_CONFIG_H
#include <dmx-config.h>
#endif
#include "dmx.h"
#include "dmxsync.h"
#include "dmxcmap.h"
#include "dmxvisual.h"
#include "micmap.h"
static int dmxInitColormapPrivateFunc(ColormapPtr pColormap)
{
return TRUE;
}
static Bool dmxAllocateColormapPrivates(ColormapPtr pColormap)
{
static unsigned long dmxColormapGeneration;
dmxColormapPrivPtr pCmapPriv;
if (dmxColormapGeneration != serverGeneration) {
if ((dmxColormapPrivateIndex
= AllocateColormapPrivateIndex(dmxInitColormapPrivateFunc)) < 0)
return FALSE;
dmxColormapGeneration = serverGeneration;
}
pCmapPriv = (dmxColormapPrivPtr)xalloc(sizeof(*pCmapPriv));
if (!pCmapPriv)
return FALSE;
pCmapPriv->cmap = (Colormap)0;
DMX_SET_COLORMAP_PRIV(pColormap, pCmapPriv);
return TRUE;
}
/** Create \a pColormap on the back-end server. */
Bool dmxBECreateColormap(ColormapPtr pColormap)
{
ScreenPtr pScreen = pColormap->pScreen;
DMXScreenInfo *dmxScreen = &dmxScreens[pScreen->myNum];
dmxColormapPrivPtr pCmapPriv = DMX_GET_COLORMAP_PRIV(pColormap);
VisualPtr pVisual = pColormap->pVisual;
Visual *visual = dmxLookupVisual(pScreen, pVisual);
pCmapPriv->cmap = XCreateColormap(dmxScreen->beDisplay,
dmxScreen->scrnWin,
visual,
(pVisual->class & DynamicClass ?
AllocAll : AllocNone));
return (pCmapPriv->cmap != 0);
}
/** Create colormap on back-end server associated with \a pColormap's
* screen. */
Bool dmxCreateColormap(ColormapPtr pColormap)
{
ScreenPtr pScreen = pColormap->pScreen;
DMXScreenInfo *dmxScreen = &dmxScreens[pScreen->myNum];
Bool ret = TRUE;
if (!dmxAllocateColormapPrivates(pColormap))
return FALSE;
if (dmxScreen->beDisplay) {
if (!dmxBECreateColormap(pColormap))
return FALSE;
}
DMX_UNWRAP(CreateColormap, dmxScreen, pScreen);
if (pScreen->CreateColormap)
ret = pScreen->CreateColormap(pColormap);
DMX_WRAP(CreateColormap, dmxCreateColormap, dmxScreen, pScreen);
return ret;
}
/** Destroy \a pColormap on the back-end server. */
Bool dmxBEFreeColormap(ColormapPtr pColormap)
{
ScreenPtr pScreen = pColormap->pScreen;
DMXScreenInfo *dmxScreen = &dmxScreens[pScreen->myNum];
dmxColormapPrivPtr pCmapPriv = DMX_GET_COLORMAP_PRIV(pColormap);
if (pCmapPriv->cmap) {
XFreeColormap(dmxScreen->beDisplay, pCmapPriv->cmap);
pCmapPriv->cmap = (Colormap)0;
return TRUE;
}
return FALSE;
}
/** Destroy colormap on back-end server associated with \a pColormap's
* screen. */
void dmxDestroyColormap(ColormapPtr pColormap)
{
ScreenPtr pScreen = pColormap->pScreen;
DMXScreenInfo *dmxScreen = &dmxScreens[pScreen->myNum];
dmxColormapPrivPtr pCmapPriv = DMX_GET_COLORMAP_PRIV(pColormap);
if (dmxScreen->beDisplay)
dmxBEFreeColormap(pColormap);
xfree(pCmapPriv);
DMX_SET_COLORMAP_PRIV(pColormap, NULL);
DMX_UNWRAP(DestroyColormap, dmxScreen, pScreen);
if (pScreen->DestroyColormap)
pScreen->DestroyColormap(pColormap);
DMX_WRAP(DestroyColormap, dmxDestroyColormap, dmxScreen, pScreen);
}
/** Install colormap on back-end server associated with \a pColormap's
* screen. */
void dmxInstallColormap(ColormapPtr pColormap)
{
ScreenPtr pScreen = pColormap->pScreen;
DMXScreenInfo *dmxScreen = &dmxScreens[pScreen->myNum];
dmxColormapPrivPtr pCmapPriv = DMX_GET_COLORMAP_PRIV(pColormap);
DMX_UNWRAP(InstallColormap, dmxScreen, pScreen);
if (pScreen->InstallColormap)
pScreen->InstallColormap(pColormap);
DMX_WRAP(InstallColormap, dmxInstallColormap, dmxScreen, pScreen);
if (dmxScreen->beDisplay) {
XInstallColormap(dmxScreen->beDisplay, pCmapPriv->cmap);
dmxSync(dmxScreen, FALSE);
}
}
/** Store colors in \a pColormap on back-end server associated with \a
* pColormap's screen. */
void dmxStoreColors(ColormapPtr pColormap, int ndef, xColorItem *pdef)
{
ScreenPtr pScreen = pColormap->pScreen;
DMXScreenInfo *dmxScreen = &dmxScreens[pScreen->myNum];
dmxColormapPrivPtr pCmapPriv = DMX_GET_COLORMAP_PRIV(pColormap);
if (dmxScreen->beDisplay && (pColormap->pVisual->class & DynamicClass)) {
XColor *color = xalloc(sizeof(*color) * ndef);
int i;
if (color) {
for (i = 0; i < ndef; i++) {
color[i].pixel = pdef[i].pixel;
color[i].red = pdef[i].red;
color[i].blue = pdef[i].blue;
color[i].green = pdef[i].green;
color[i].flags = pdef[i].flags;
color[i].pad = pdef[i].pad;
}
XStoreColors(dmxScreen->beDisplay, pCmapPriv->cmap, color, ndef);
xfree(color);
} else { /* xalloc failed, so fallback */
XColor c;
for (i = 0; i < ndef; i++) {
c.pixel = pdef[i].pixel;
c.red = pdef[i].red;
c.blue = pdef[i].blue;
c.green = pdef[i].green;
c.flags = pdef[i].flags;
c.pad = pdef[i].pad;
XStoreColor(dmxScreen->beDisplay, pCmapPriv->cmap, &c);
}
}
dmxSync(dmxScreen, FALSE);
}
DMX_UNWRAP(StoreColors, dmxScreen, pScreen);
if (pScreen->StoreColors)
pScreen->StoreColors(pColormap, ndef, pdef);
DMX_WRAP(StoreColors, dmxStoreColors, dmxScreen, pScreen);
}
/** Create the DMX server's default colormap. */
Bool dmxCreateDefColormap(ScreenPtr pScreen)
{
return miCreateDefColormap(pScreen);
}
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