diff options
Diffstat (limited to 'hw/dmx/dmxcmap.c')
| -rw-r--r-- | hw/dmx/dmxcmap.c | 216 |
1 files changed, 216 insertions, 0 deletions
diff --git a/hw/dmx/dmxcmap.c b/hw/dmx/dmxcmap.c new file mode 100644 index 000000000..340f1791e --- /dev/null +++ b/hw/dmx/dmxcmap.c @@ -0,0 +1,216 @@ +/* $XFree86$ */ +/* + * 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. */ + +#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); +} |