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Diffstat (limited to 'hw/kdrive/src/kcmap.c')
| -rw-r--r-- | hw/kdrive/src/kcmap.c | 231 |
1 files changed, 231 insertions, 0 deletions
diff --git a/hw/kdrive/src/kcmap.c b/hw/kdrive/src/kcmap.c new file mode 100644 index 000000000..ed482a080 --- /dev/null +++ b/hw/kdrive/src/kcmap.c @@ -0,0 +1,231 @@ +/* + * $Id$ + * + * Copyright © 1999 Keith Packard + * + * 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, and that the name of Keith Packard not be used in + * advertising or publicity pertaining to distribution of the software without + * specific, written prior permission. Keith Packard makes no + * representations about the suitability of this software for any purpose. It + * is provided "as is" without express or implied warranty. + * + * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, + * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO + * EVENT SHALL KEITH PACKARD 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. + */ +/* $XFree86: $ */ + +#include "kdrive.h" + +/* + * Put the entire colormap into the DAC + */ + +void +KdSetColormap (ScreenPtr pScreen) +{ + KdScreenPriv(pScreen); + ColormapPtr pCmap = pScreenPriv->pInstalledmap; + Pixel pixels[KD_MAX_PSEUDO_SIZE]; + xrgb colors[KD_MAX_PSEUDO_SIZE]; + xColorItem defs[KD_MAX_PSEUDO_SIZE]; + int i; + + if (!pScreenPriv->card->cfuncs->putColors) + return; + if (pScreenPriv->screen->depth > KD_MAX_PSEUDO_DEPTH) + return; + + if (!pScreenPriv->enabled) + return; + + if (!pCmap) + return; + + /* + * Make DIX convert pixels into RGB values -- this handles + * true/direct as well as pseudo/static visuals + */ + + for (i = 0; i < (1 << pScreenPriv->screen->depth); i++) + pixels[i] = i; + + QueryColors (pCmap, (1 << pScreenPriv->screen->depth), pixels, colors); + + for (i = 0; i < (1 << pScreenPriv->screen->depth); i++) + { + defs[i].pixel = i; + defs[i].red = colors[i].red; + defs[i].green = colors[i].green; + defs[i].blue = colors[i].blue; + defs[i].flags = DoRed|DoGreen|DoBlue; + } + + (*pScreenPriv->card->cfuncs->putColors) (pCmap->pScreen, + (1 << pScreenPriv->screen->depth), + defs); + + /* recolor hardware cursor */ + if (pScreenPriv->card->cfuncs->recolorCursor) + (*pScreenPriv->card->cfuncs->recolorCursor) (pCmap->pScreen, 0, 0); +} + +/* + * When the hardware is enabled, save the hardware colors and store + * the current colormap + */ +void +KdEnableColormap (ScreenPtr pScreen) +{ + KdScreenPriv(pScreen); + int i; + + if (!pScreenPriv->card->cfuncs->putColors) + return; + if (pScreenPriv->screen->depth <= KD_MAX_PSEUDO_DEPTH) + { + for (i = 0; i < (1 << pScreenPriv->screen->depth); i++) + pScreenPriv->systemPalette[i].pixel = i; + (*pScreenPriv->card->cfuncs->getColors) (pScreen, + (1 << pScreenPriv->screen->depth), + pScreenPriv->systemPalette); + } + KdSetColormap (pScreen); +} + +void +KdDisableColormap (ScreenPtr pScreen) +{ + KdScreenPriv(pScreen); + + if (!pScreenPriv->card->cfuncs->putColors) + return; + if (pScreenPriv->screen->depth > KD_MAX_PSEUDO_DEPTH) + return; + + (*pScreenPriv->card->cfuncs->putColors) (pScreen, + (1 << pScreenPriv->screen->depth), + pScreenPriv->systemPalette); +} + +/* + * KdInstallColormap + * + * This function is called when the server receives a request to install a + * colormap or when the server needs to install one on its own, like when + * there's no window manager running and the user has moved the pointer over + * an X client window. It needs to build an identity Windows palette for the + * colormap and realize it into the Windows system palette. + */ +void +KdInstallColormap (ColormapPtr pCmap) +{ + KdScreenPriv(pCmap->pScreen); + + if (pCmap == pScreenPriv->pInstalledmap) + return; + + /* Tell X clients that the installed colormap is going away. */ + if (pScreenPriv->pInstalledmap) + WalkTree(pScreenPriv->pInstalledmap->pScreen, TellLostMap, + (pointer) &(pScreenPriv->pInstalledmap->mid)); + + /* Take note of the new installed colorscreen-> */ + pScreenPriv->pInstalledmap = pCmap; + + KdSetColormap (pCmap->pScreen); + + /* Tell X clients of the new colorscreen-> */ + WalkTree(pCmap->pScreen, TellGainedMap, (pointer) &(pCmap->mid)); +} + +/* + * KdUninstallColormap + * + * This function uninstalls a colormap by installing the default X colorscreen-> + * The default X colormap itself cannot be uninstalled. + */ +void +KdUninstallColormap (ColormapPtr pCmap) +{ + KdScreenPriv(pCmap->pScreen); + + if (pCmap == pScreenPriv->pInstalledmap) + { + Colormap defMapID = pCmap->pScreen->defColormap; + + if ((Colormap) pCmap->mid != defMapID) + { + ColormapPtr defMap = (ColormapPtr) LookupIDByType(defMapID, + RT_COLORMAP); + if (defMap) + (*pCmap->pScreen->InstallColormap)(defMap); + } + } +} + +int +KdListInstalledColormaps (ScreenPtr pScreen, Colormap *pCmaps) +{ + KdScreenPriv(pScreen); + + if (pScreenPriv->pInstalledmap) + { + *pCmaps = pScreenPriv->pInstalledmap->mid; + return 1; + } + return 0; +} + +/* + * KdStoreColors + * + * This function is called whenever the server receives a request to store + * color values into one or more entries in the currently installed X + * colormap; it can be either the default colormap or a private colorscreen-> + */ +void +KdStoreColors (ColormapPtr pCmap, int ndef, xColorItem *pdefs) +{ + KdScreenPriv(pCmap->pScreen); + VisualPtr pVisual; + xColorItem expanddefs[KD_MAX_PSEUDO_SIZE]; + + if (pCmap != pScreenPriv->pInstalledmap) + return; + + if (!pScreenPriv->card->cfuncs->putColors) + return; + + if (pScreenPriv->screen->depth > KD_MAX_PSEUDO_DEPTH) + return; + + if (!pScreenPriv->enabled) + return; + + /* Check for DirectColor or TrueColor being simulated on a PseudoColor device. */ + pVisual = pCmap->pVisual; + if ((pVisual->class | DynamicClass) == DirectColor) + { + /* + * Expand DirectColor or TrueColor color values into a PseudoColor + * format. Defer to the Color Framebuffer (CFB) code to do that. + */ + ndef = fbExpandDirectColors(pCmap, ndef, pdefs, expanddefs); + pdefs = expanddefs; + } + + (*pScreenPriv->card->cfuncs->putColors) (pCmap->pScreen, ndef, pdefs); + + /* recolor hardware cursor */ + if (pScreenPriv->card->cfuncs->recolorCursor) + (*pScreenPriv->card->cfuncs->recolorCursor) (pCmap->pScreen, ndef, pdefs); +} |