/* * 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)malloc(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); free(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 = malloc(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); free(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); }