| 1 | /* |
| 2 | * Copyright © 1999 Keith Packard |
| 3 | * |
| 4 | * Permission to use, copy, modify, distribute, and sell this software and its |
| 5 | * documentation for any purpose is hereby granted without fee, provided that |
| 6 | * the above copyright notice appear in all copies and that both that |
| 7 | * copyright notice and this permission notice appear in supporting |
| 8 | * documentation, and that the name of Keith Packard not be used in |
| 9 | * advertising or publicity pertaining to distribution of the software without |
| 10 | * specific, written prior permission. Keith Packard makes no |
| 11 | * representations about the suitability of this software for any purpose. It |
| 12 | * is provided "as is" without express or implied warranty. |
| 13 | * |
| 14 | * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, |
| 15 | * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO |
| 16 | * EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR |
| 17 | * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, |
| 18 | * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER |
| 19 | * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR |
| 20 | * PERFORMANCE OF THIS SOFTWARE. |
| 21 | */ |
| 22 | |
| 23 | #ifdef HAVE_CONFIG_H |
| 24 | #include <kdrive-config.h> |
| 25 | #endif |
| 26 | #include "kdrive.h" |
| 27 | |
| 28 | /* |
| 29 | * Put the entire colormap into the DAC |
| 30 | */ |
| 31 | |
| 32 | void |
| 33 | KdSetColormap(ScreenPtr pScreen) |
| 34 | { |
| 35 | KdScreenPriv(pScreen); |
| 36 | ColormapPtr pCmap = pScreenPriv->pInstalledmap; |
| 37 | Pixel pixels[KD_MAX_PSEUDO_SIZE]; |
| 38 | xrgb colors[KD_MAX_PSEUDO_SIZE]; |
| 39 | xColorItem defs[KD_MAX_PSEUDO_SIZE]; |
| 40 | int i; |
| 41 | |
| 42 | if (!pScreenPriv->card->cfuncs->putColors) |
| 43 | return; |
| 44 | if (pScreenPriv->screen->fb.depth > KD_MAX_PSEUDO_DEPTH) |
| 45 | return; |
| 46 | |
| 47 | if (!pScreenPriv->enabled) |
| 48 | return; |
| 49 | |
| 50 | if (!pCmap) |
| 51 | return; |
| 52 | |
| 53 | /* |
| 54 | * Make DIX convert pixels into RGB values -- this handles |
| 55 | * true/direct as well as pseudo/static visuals |
| 56 | */ |
| 57 | |
| 58 | for (i = 0; i < (1 << pScreenPriv->screen->fb.depth); i++) |
| 59 | pixels[i] = i; |
| 60 | |
| 61 | QueryColors(pCmap, (1 << pScreenPriv->screen->fb.depth), pixels, colors, |
| 62 | serverClient); |
| 63 | |
| 64 | for (i = 0; i < (1 << pScreenPriv->screen->fb.depth); i++) { |
| 65 | defs[i].pixel = i; |
| 66 | defs[i].red = colors[i].red; |
| 67 | defs[i].green = colors[i].green; |
| 68 | defs[i].blue = colors[i].blue; |
| 69 | defs[i].flags = DoRed | DoGreen | DoBlue; |
| 70 | } |
| 71 | |
| 72 | (*pScreenPriv->card->cfuncs->putColors) (pCmap->pScreen, |
| 73 | (1 << pScreenPriv->screen->fb. |
| 74 | depth), defs); |
| 75 | |
| 76 | /* recolor hardware cursor */ |
| 77 | if (pScreenPriv->card->cfuncs->recolorCursor) |
| 78 | (*pScreenPriv->card->cfuncs->recolorCursor) (pCmap->pScreen, 0, 0); |
| 79 | } |
| 80 | |
| 81 | /* |
| 82 | * When the hardware is enabled, save the hardware colors and store |
| 83 | * the current colormap |
| 84 | */ |
| 85 | void |
| 86 | KdEnableColormap(ScreenPtr pScreen) |
| 87 | { |
| 88 | KdScreenPriv(pScreen); |
| 89 | int i; |
| 90 | |
| 91 | if (!pScreenPriv->card->cfuncs->putColors) |
| 92 | return; |
| 93 | |
| 94 | if (pScreenPriv->screen->fb.depth <= KD_MAX_PSEUDO_DEPTH) { |
| 95 | for (i = 0; i < (1 << pScreenPriv->screen->fb.depth); i++) |
| 96 | pScreenPriv->systemPalette[i].pixel = i; |
| 97 | (*pScreenPriv->card->cfuncs->getColors) (pScreen, |
| 98 | (1 << pScreenPriv->screen->fb. |
| 99 | depth), |
| 100 | pScreenPriv->systemPalette); |
| 101 | } |
| 102 | KdSetColormap(pScreen); |
| 103 | } |
| 104 | |
| 105 | void |
| 106 | KdDisableColormap(ScreenPtr pScreen) |
| 107 | { |
| 108 | KdScreenPriv(pScreen); |
| 109 | |
| 110 | if (!pScreenPriv->card->cfuncs->putColors) |
| 111 | return; |
| 112 | |
| 113 | if (pScreenPriv->screen->fb.depth <= KD_MAX_PSEUDO_DEPTH) { |
| 114 | (*pScreenPriv->card->cfuncs->putColors) (pScreen, |
| 115 | (1 << pScreenPriv->screen->fb. |
| 116 | depth), |
| 117 | pScreenPriv->systemPalette); |
| 118 | } |
| 119 | } |
| 120 | |
| 121 | /* |
| 122 | * KdInstallColormap |
| 123 | * |
| 124 | * This function is called when the server receives a request to install a |
| 125 | * colormap or when the server needs to install one on its own, like when |
| 126 | * there's no window manager running and the user has moved the pointer over |
| 127 | * an X client window. It needs to build an identity Windows palette for the |
| 128 | * colormap and realize it into the Windows system palette. |
| 129 | */ |
| 130 | void |
| 131 | KdInstallColormap(ColormapPtr pCmap) |
| 132 | { |
| 133 | KdScreenPriv(pCmap->pScreen); |
| 134 | |
| 135 | if (pCmap == pScreenPriv->pInstalledmap) |
| 136 | return; |
| 137 | |
| 138 | /* Tell X clients that the installed colormap is going away. */ |
| 139 | if (pScreenPriv->pInstalledmap) |
| 140 | WalkTree(pScreenPriv->pInstalledmap->pScreen, TellLostMap, |
| 141 | (pointer) &(pScreenPriv->pInstalledmap->mid)); |
| 142 | |
| 143 | /* Take note of the new installed colorscreen-> */ |
| 144 | pScreenPriv->pInstalledmap = pCmap; |
| 145 | |
| 146 | KdSetColormap(pCmap->pScreen); |
| 147 | |
| 148 | /* Tell X clients of the new colormap */ |
| 149 | WalkTree(pCmap->pScreen, TellGainedMap, (pointer) &(pCmap->mid)); |
| 150 | } |
| 151 | |
| 152 | /* |
| 153 | * KdUninstallColormap |
| 154 | * |
| 155 | * This function uninstalls a colormap by either installing |
| 156 | * the default X colormap or erasing the installed colormap pointer. |
| 157 | * The default X colormap itself cannot be uninstalled. |
| 158 | */ |
| 159 | void |
| 160 | KdUninstallColormap(ColormapPtr pCmap) |
| 161 | { |
| 162 | KdScreenPriv(pCmap->pScreen); |
| 163 | Colormap defMapID; |
| 164 | ColormapPtr defMap; |
| 165 | |
| 166 | /* ignore if not installed */ |
| 167 | if (pCmap != pScreenPriv->pInstalledmap) |
| 168 | return; |
| 169 | |
| 170 | /* ignore attempts to uninstall default colormap */ |
| 171 | defMapID = pCmap->pScreen->defColormap; |
| 172 | if ((Colormap) pCmap->mid == defMapID) |
| 173 | return; |
| 174 | |
| 175 | /* install default */ |
| 176 | dixLookupResourceByType((pointer *) &defMap, defMapID, RT_COLORMAP, |
| 177 | serverClient, DixInstallAccess); |
| 178 | if (defMap) |
| 179 | (*pCmap->pScreen->InstallColormap) (defMap); |
| 180 | else { |
| 181 | /* uninstall and clear colormap pointer */ |
| 182 | WalkTree(pCmap->pScreen, TellLostMap, (pointer) &(pCmap->mid)); |
| 183 | pScreenPriv->pInstalledmap = 0; |
| 184 | } |
| 185 | } |
| 186 | |
| 187 | int |
| 188 | KdListInstalledColormaps(ScreenPtr pScreen, Colormap * pCmaps) |
| 189 | { |
| 190 | KdScreenPriv(pScreen); |
| 191 | int n = 0; |
| 192 | |
| 193 | if (pScreenPriv->pInstalledmap) { |
| 194 | *pCmaps++ = pScreenPriv->pInstalledmap->mid; |
| 195 | n++; |
| 196 | } |
| 197 | return n; |
| 198 | } |
| 199 | |
| 200 | /* |
| 201 | * KdStoreColors |
| 202 | * |
| 203 | * This function is called whenever the server receives a request to store |
| 204 | * color values into one or more entries in the currently installed X |
| 205 | * colormap; it can be either the default colormap or a private colorscreen-> |
| 206 | */ |
| 207 | void |
| 208 | KdStoreColors(ColormapPtr pCmap, int ndef, xColorItem * pdefs) |
| 209 | { |
| 210 | KdScreenPriv(pCmap->pScreen); |
| 211 | VisualPtr pVisual; |
| 212 | xColorItem expanddefs[KD_MAX_PSEUDO_SIZE]; |
| 213 | |
| 214 | if (pCmap != pScreenPriv->pInstalledmap) |
| 215 | return; |
| 216 | |
| 217 | if (!pScreenPriv->card->cfuncs->putColors) |
| 218 | return; |
| 219 | |
| 220 | if (pScreenPriv->screen->fb.depth > KD_MAX_PSEUDO_DEPTH) |
| 221 | return; |
| 222 | |
| 223 | if (!pScreenPriv->enabled) |
| 224 | return; |
| 225 | |
| 226 | /* Check for DirectColor or TrueColor being simulated on a PseudoColor device. */ |
| 227 | pVisual = pCmap->pVisual; |
| 228 | if ((pVisual->class | DynamicClass) == DirectColor) { |
| 229 | /* |
| 230 | * Expand DirectColor or TrueColor color values into a PseudoColor |
| 231 | * format. Defer to the Color Framebuffer (CFB) code to do that. |
| 232 | */ |
| 233 | ndef = fbExpandDirectColors(pCmap, ndef, pdefs, expanddefs); |
| 234 | pdefs = expanddefs; |
| 235 | } |
| 236 | |
| 237 | (*pScreenPriv->card->cfuncs->putColors) (pCmap->pScreen, ndef, pdefs); |
| 238 | |
| 239 | /* recolor hardware cursor */ |
| 240 | if (pScreenPriv->card->cfuncs->recolorCursor) |
| 241 | (*pScreenPriv->card->cfuncs->recolorCursor) (pCmap->pScreen, ndef, |
| 242 | pdefs); |
| 243 | } |