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a09e091a JB |
1 | /* |
2 | * Copyright 2001-2004 Red Hat Inc., Durham, North Carolina. | |
3 | * | |
4 | * All Rights Reserved. | |
5 | * | |
6 | * Permission is hereby granted, free of charge, to any person obtaining | |
7 | * a copy of this software and associated documentation files (the | |
8 | * "Software"), to deal in the Software without restriction, including | |
9 | * without limitation on the rights to use, copy, modify, merge, | |
10 | * publish, distribute, sublicense, and/or sell copies of the Software, | |
11 | * and to permit persons to whom the Software is furnished to do so, | |
12 | * subject to the following conditions: | |
13 | * | |
14 | * The above copyright notice and this permission notice (including the | |
15 | * next paragraph) shall be included in all copies or substantial | |
16 | * portions of the Software. | |
17 | * | |
18 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, | |
19 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF | |
20 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND | |
21 | * NON-INFRINGEMENT. IN NO EVENT SHALL RED HAT AND/OR THEIR SUPPLIERS | |
22 | * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN | |
23 | * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN | |
24 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
25 | * SOFTWARE. | |
26 | */ | |
27 | ||
28 | /* | |
29 | * Authors: | |
30 | * Kevin E. Martin <kem@redhat.com> | |
31 | * | |
32 | */ | |
33 | ||
34 | /** \file | |
35 | * Colormap support. */ | |
36 | ||
37 | #ifdef HAVE_DMX_CONFIG_H | |
38 | #include <dmx-config.h> | |
39 | #endif | |
40 | ||
41 | #include "dmx.h" | |
42 | #include "dmxlog.h" | |
43 | #include "dmxsync.h" | |
44 | #include "dmxcmap.h" | |
45 | #include "dmxvisual.h" | |
46 | ||
47 | #include "micmap.h" | |
48 | ||
49 | static Bool | |
50 | dmxAllocateColormapPrivates(ColormapPtr pColormap) | |
51 | { | |
52 | dmxColormapPrivPtr pCmapPriv; | |
53 | ||
54 | pCmapPriv = (dmxColormapPrivPtr) malloc(sizeof(*pCmapPriv)); | |
55 | if (!pCmapPriv) | |
56 | return FALSE; | |
57 | pCmapPriv->cmap = (Colormap) 0; | |
58 | ||
59 | DMX_SET_COLORMAP_PRIV(pColormap, pCmapPriv); | |
60 | ||
61 | return TRUE; | |
62 | } | |
63 | ||
64 | /** Create \a pColormap on the back-end server. */ | |
65 | Bool | |
66 | dmxBECreateColormap(ColormapPtr pColormap) | |
67 | { | |
68 | ScreenPtr pScreen = pColormap->pScreen; | |
69 | DMXScreenInfo *dmxScreen = &dmxScreens[pScreen->myNum]; | |
70 | dmxColormapPrivPtr pCmapPriv = DMX_GET_COLORMAP_PRIV(pColormap); | |
71 | VisualPtr pVisual = pColormap->pVisual; | |
72 | Visual *visual = dmxLookupVisual(pScreen, pVisual); | |
73 | ||
74 | if (visual) { | |
75 | pCmapPriv->cmap = XCreateColormap(dmxScreen->beDisplay, | |
76 | dmxScreen->scrnWin, | |
77 | visual, | |
78 | (pVisual->class & DynamicClass ? | |
79 | AllocAll : AllocNone)); | |
80 | return pCmapPriv->cmap != 0; | |
81 | } | |
82 | else { | |
83 | dmxLog(dmxWarning, "dmxBECreateColormap: No visual found\n"); | |
84 | return 0; | |
85 | } | |
86 | } | |
87 | ||
88 | /** Create colormap on back-end server associated with \a pColormap's | |
89 | * screen. */ | |
90 | Bool | |
91 | dmxCreateColormap(ColormapPtr pColormap) | |
92 | { | |
93 | ScreenPtr pScreen = pColormap->pScreen; | |
94 | DMXScreenInfo *dmxScreen = &dmxScreens[pScreen->myNum]; | |
95 | Bool ret = TRUE; | |
96 | ||
97 | if (!dmxAllocateColormapPrivates(pColormap)) | |
98 | return FALSE; | |
99 | ||
100 | if (dmxScreen->beDisplay) { | |
101 | if (!dmxBECreateColormap(pColormap)) | |
102 | return FALSE; | |
103 | } | |
104 | ||
105 | DMX_UNWRAP(CreateColormap, dmxScreen, pScreen); | |
106 | if (pScreen->CreateColormap) | |
107 | ret = pScreen->CreateColormap(pColormap); | |
108 | DMX_WRAP(CreateColormap, dmxCreateColormap, dmxScreen, pScreen); | |
109 | ||
110 | return ret; | |
111 | } | |
112 | ||
113 | /** Destroy \a pColormap on the back-end server. */ | |
114 | Bool | |
115 | dmxBEFreeColormap(ColormapPtr pColormap) | |
116 | { | |
117 | ScreenPtr pScreen = pColormap->pScreen; | |
118 | DMXScreenInfo *dmxScreen = &dmxScreens[pScreen->myNum]; | |
119 | dmxColormapPrivPtr pCmapPriv = DMX_GET_COLORMAP_PRIV(pColormap); | |
120 | ||
121 | if (pCmapPriv->cmap) { | |
122 | XFreeColormap(dmxScreen->beDisplay, pCmapPriv->cmap); | |
123 | pCmapPriv->cmap = (Colormap) 0; | |
124 | return TRUE; | |
125 | } | |
126 | ||
127 | return FALSE; | |
128 | } | |
129 | ||
130 | /** Destroy colormap on back-end server associated with \a pColormap's | |
131 | * screen. */ | |
132 | void | |
133 | dmxDestroyColormap(ColormapPtr pColormap) | |
134 | { | |
135 | ScreenPtr pScreen = pColormap->pScreen; | |
136 | DMXScreenInfo *dmxScreen = &dmxScreens[pScreen->myNum]; | |
137 | dmxColormapPrivPtr pCmapPriv = DMX_GET_COLORMAP_PRIV(pColormap); | |
138 | ||
139 | if (dmxScreen->beDisplay) | |
140 | dmxBEFreeColormap(pColormap); | |
141 | free(pCmapPriv); | |
142 | DMX_SET_COLORMAP_PRIV(pColormap, NULL); | |
143 | ||
144 | DMX_UNWRAP(DestroyColormap, dmxScreen, pScreen); | |
145 | if (pScreen->DestroyColormap) | |
146 | pScreen->DestroyColormap(pColormap); | |
147 | DMX_WRAP(DestroyColormap, dmxDestroyColormap, dmxScreen, pScreen); | |
148 | } | |
149 | ||
150 | /** Install colormap on back-end server associated with \a pColormap's | |
151 | * screen. */ | |
152 | void | |
153 | dmxInstallColormap(ColormapPtr pColormap) | |
154 | { | |
155 | ScreenPtr pScreen = pColormap->pScreen; | |
156 | DMXScreenInfo *dmxScreen = &dmxScreens[pScreen->myNum]; | |
157 | dmxColormapPrivPtr pCmapPriv = DMX_GET_COLORMAP_PRIV(pColormap); | |
158 | ||
159 | DMX_UNWRAP(InstallColormap, dmxScreen, pScreen); | |
160 | if (pScreen->InstallColormap) | |
161 | pScreen->InstallColormap(pColormap); | |
162 | DMX_WRAP(InstallColormap, dmxInstallColormap, dmxScreen, pScreen); | |
163 | ||
164 | if (dmxScreen->beDisplay) { | |
165 | XInstallColormap(dmxScreen->beDisplay, pCmapPriv->cmap); | |
166 | dmxSync(dmxScreen, FALSE); | |
167 | } | |
168 | } | |
169 | ||
170 | /** Store colors in \a pColormap on back-end server associated with \a | |
171 | * pColormap's screen. */ | |
172 | void | |
173 | dmxStoreColors(ColormapPtr pColormap, int ndef, xColorItem * pdef) | |
174 | { | |
175 | ScreenPtr pScreen = pColormap->pScreen; | |
176 | DMXScreenInfo *dmxScreen = &dmxScreens[pScreen->myNum]; | |
177 | dmxColormapPrivPtr pCmapPriv = DMX_GET_COLORMAP_PRIV(pColormap); | |
178 | ||
179 | if (dmxScreen->beDisplay && (pColormap->pVisual->class & DynamicClass)) { | |
180 | XColor *color = malloc(sizeof(*color) * ndef); | |
181 | int i; | |
182 | ||
183 | if (color) { | |
184 | for (i = 0; i < ndef; i++) { | |
185 | color[i].pixel = pdef[i].pixel; | |
186 | color[i].red = pdef[i].red; | |
187 | color[i].blue = pdef[i].blue; | |
188 | color[i].green = pdef[i].green; | |
189 | color[i].flags = pdef[i].flags; | |
190 | color[i].pad = pdef[i].pad; | |
191 | } | |
192 | XStoreColors(dmxScreen->beDisplay, pCmapPriv->cmap, color, ndef); | |
193 | free(color); | |
194 | } | |
195 | else { /* xalloc failed, so fallback */ | |
196 | XColor c; | |
197 | ||
198 | for (i = 0; i < ndef; i++) { | |
199 | c.pixel = pdef[i].pixel; | |
200 | c.red = pdef[i].red; | |
201 | c.blue = pdef[i].blue; | |
202 | c.green = pdef[i].green; | |
203 | c.flags = pdef[i].flags; | |
204 | c.pad = pdef[i].pad; | |
205 | XStoreColor(dmxScreen->beDisplay, pCmapPriv->cmap, &c); | |
206 | } | |
207 | } | |
208 | dmxSync(dmxScreen, FALSE); | |
209 | } | |
210 | ||
211 | DMX_UNWRAP(StoreColors, dmxScreen, pScreen); | |
212 | if (pScreen->StoreColors) | |
213 | pScreen->StoreColors(pColormap, ndef, pdef); | |
214 | DMX_WRAP(StoreColors, dmxStoreColors, dmxScreen, pScreen); | |
215 | } | |
216 | ||
217 | /** Create the DMX server's default colormap. */ | |
218 | Bool | |
219 | dmxCreateDefColormap(ScreenPtr pScreen) | |
220 | { | |
221 | return miCreateDefColormap(pScreen); | |
222 | } |