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a09e091a JB |
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 | } |