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-rw-r--r--xorg-server/hw/dmx/dmxcmap.c212
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diff --git a/xorg-server/hw/dmx/dmxcmap.c b/xorg-server/hw/dmx/dmxcmap.c
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+/*
+ * 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 "dmxlog.h"
+#include "dmxsync.h"
+#include "dmxcmap.h"
+#include "dmxvisual.h"
+
+#include "micmap.h"
+
+static Bool dmxAllocateColormapPrivates(ColormapPtr pColormap)
+{
+ dmxColormapPrivPtr pCmapPriv;
+
+ 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);
+
+ if (visual) {
+ pCmapPriv->cmap = XCreateColormap(dmxScreen->beDisplay,
+ dmxScreen->scrnWin,
+ visual,
+ (pVisual->class & DynamicClass ?
+ AllocAll : AllocNone));
+ return (pCmapPriv->cmap != 0);
+ }
+ else {
+ dmxLog(dmxWarning, "dmxBECreateColormap: No visual found\n");
+ return 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);
+}