Mercurial > sdl-ios-xcode

annotate src/video/x11/SDL_x11gamma.c @ 4788:0bfda420c936

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Put in a couple of fixes that I realized hadn't gotten done when I wrote out the SCRUM stuff in TODO. Added SCRUM listings in TODO.
author Eli Gottlieb <eligottlieb@gmail.com>
date Fri, 09 Jul 2010 20:24:44 -0400
parents f7b03b6838cb
children
rev   line source
2162
1d23870d8c49 Added stubs for x11 gamma functions and enabled them in SDL_x11video.c
Bob Pendleton <bob@pendleton.com>
parents:
diff changeset
1 /*
1d23870d8c49 Added stubs for x11 gamma functions and enabled them in SDL_x11video.c
Bob Pendleton <bob@pendleton.com>
parents:
diff changeset
2 SDL - Simple DirectMedia Layer
3697
f7b03b6838cb Fixed bug #926
Sam Lantinga <slouken@libsdl.org>
parents: 3500
diff changeset
3 Copyright (C) 1997-2010 Sam Lantinga
2162
1d23870d8c49 Added stubs for x11 gamma functions and enabled them in SDL_x11video.c
Bob Pendleton <bob@pendleton.com>
parents:
diff changeset
4
1d23870d8c49 Added stubs for x11 gamma functions and enabled them in SDL_x11video.c
Bob Pendleton <bob@pendleton.com>
parents:
diff changeset
5 This library is free software; you can redistribute it and/or
1d23870d8c49 Added stubs for x11 gamma functions and enabled them in SDL_x11video.c
Bob Pendleton <bob@pendleton.com>
parents:
diff changeset
6 modify it under the terms of the GNU Lesser General Public
1d23870d8c49 Added stubs for x11 gamma functions and enabled them in SDL_x11video.c
Bob Pendleton <bob@pendleton.com>
parents:
diff changeset
7 License as published by the Free Software Foundation; either
1d23870d8c49 Added stubs for x11 gamma functions and enabled them in SDL_x11video.c
Bob Pendleton <bob@pendleton.com>
parents:
diff changeset
8 version 2.1 of the License, or (at your option) any later version.
1d23870d8c49 Added stubs for x11 gamma functions and enabled them in SDL_x11video.c
Bob Pendleton <bob@pendleton.com>
parents:
diff changeset
9
1d23870d8c49 Added stubs for x11 gamma functions and enabled them in SDL_x11video.c
Bob Pendleton <bob@pendleton.com>
parents:
diff changeset
10 This library is distributed in the hope that it will be useful,
1d23870d8c49 Added stubs for x11 gamma functions and enabled them in SDL_x11video.c
Bob Pendleton <bob@pendleton.com>
parents:
diff changeset
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
1d23870d8c49 Added stubs for x11 gamma functions and enabled them in SDL_x11video.c
Bob Pendleton <bob@pendleton.com>
parents:
diff changeset
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
1d23870d8c49 Added stubs for x11 gamma functions and enabled them in SDL_x11video.c
Bob Pendleton <bob@pendleton.com>
parents:
diff changeset
13 Lesser General Public License for more details.
1d23870d8c49 Added stubs for x11 gamma functions and enabled them in SDL_x11video.c
Bob Pendleton <bob@pendleton.com>
parents:
diff changeset
14
1d23870d8c49 Added stubs for x11 gamma functions and enabled them in SDL_x11video.c
Bob Pendleton <bob@pendleton.com>
parents:
diff changeset
15 You should have received a copy of the GNU Lesser General Public
1d23870d8c49 Added stubs for x11 gamma functions and enabled them in SDL_x11video.c
Bob Pendleton <bob@pendleton.com>
parents:
diff changeset
16 License along with this library; if not, write to the Free Software
1d23870d8c49 Added stubs for x11 gamma functions and enabled them in SDL_x11video.c
Bob Pendleton <bob@pendleton.com>
parents:
diff changeset
17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
1d23870d8c49 Added stubs for x11 gamma functions and enabled them in SDL_x11video.c
Bob Pendleton <bob@pendleton.com>
parents:
diff changeset
18
1d23870d8c49 Added stubs for x11 gamma functions and enabled them in SDL_x11video.c
Bob Pendleton <bob@pendleton.com>
parents:
diff changeset
19 Sam Lantinga
1d23870d8c49 Added stubs for x11 gamma functions and enabled them in SDL_x11video.c
Bob Pendleton <bob@pendleton.com>
parents:
diff changeset
20 slouken@libsdl.org
1d23870d8c49 Added stubs for x11 gamma functions and enabled them in SDL_x11video.c
Bob Pendleton <bob@pendleton.com>
parents:
diff changeset
21 */
1d23870d8c49 Added stubs for x11 gamma functions and enabled them in SDL_x11video.c
Bob Pendleton <bob@pendleton.com>
parents:
diff changeset
22 #include "SDL_config.h"
1d23870d8c49 Added stubs for x11 gamma functions and enabled them in SDL_x11video.c
Bob Pendleton <bob@pendleton.com>
parents:
diff changeset
23 #include "../SDL_sysvideo.h"
1d23870d8c49 Added stubs for x11 gamma functions and enabled them in SDL_x11video.c
Bob Pendleton <bob@pendleton.com>
parents:
diff changeset
24 #include "SDL_x11video.h"
1d23870d8c49 Added stubs for x11 gamma functions and enabled them in SDL_x11video.c
Bob Pendleton <bob@pendleton.com>
parents:
diff changeset
25
3044
b36579172f27 Changes to hopefully handle the creation of a colormap for 8 bit PseudoColor visuals in X11
Bob Pendleton <bob@pendleton.com>
parents: 3010
diff changeset
26 /* The size of *all* SDL gamma ramps */
b36579172f27 Changes to hopefully handle the creation of a colormap for 8 bit PseudoColor visuals in X11
Bob Pendleton <bob@pendleton.com>
parents: 3010
diff changeset
27 #define SDL_GammaRampSize (3 * 256 * sizeof(Uint16))
b36579172f27 Changes to hopefully handle the creation of a colormap for 8 bit PseudoColor visuals in X11
Bob Pendleton <bob@pendleton.com>
parents: 3010
diff changeset
28
2213
59a667370c57 make indent
Bob Pendleton <bob@pendleton.com>
parents: 2211
diff changeset
29 static int numCmaps = 0;
59a667370c57 make indent
Bob Pendleton <bob@pendleton.com>
parents: 2211
diff changeset
30
59a667370c57 make indent
Bob Pendleton <bob@pendleton.com>
parents: 2211
diff changeset
31 typedef struct
59a667370c57 make indent
Bob Pendleton <bob@pendleton.com>
parents: 2211
diff changeset
32 {
59a667370c57 make indent
Bob Pendleton <bob@pendleton.com>
parents: 2211
diff changeset
33 Display *display;
59a667370c57 make indent
Bob Pendleton <bob@pendleton.com>
parents: 2211
diff changeset
34 int scrNum;
2214
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals.
Bob Pendleton <bob@pendleton.com>
parents: 2213
diff changeset
35 Colormap colormap;
2213
59a667370c57 make indent
Bob Pendleton <bob@pendleton.com>
parents: 2211
diff changeset
36 Visual visual;
3010
a6694a812119 Modified and totally untested code to load the color tables for DirectColor and PseudoColor windows.
Bob Pendleton <bob@pendleton.com>
parents: 2859
diff changeset
37 Uint16 *ramp;
2213
59a667370c57 make indent
Bob Pendleton <bob@pendleton.com>
parents: 2211
diff changeset
38 } cmapTableEntry;
59a667370c57 make indent
Bob Pendleton <bob@pendleton.com>
parents: 2211
diff changeset
39
59a667370c57 make indent
Bob Pendleton <bob@pendleton.com>
parents: 2211
diff changeset
40 cmapTableEntry *cmapTable = NULL;
59a667370c57 make indent
Bob Pendleton <bob@pendleton.com>
parents: 2211
diff changeset
41
2214
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals.
Bob Pendleton <bob@pendleton.com>
parents: 2213
diff changeset
42 /* To reduce the overhead as much as possible lets do as little as
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals.
Bob Pendleton <bob@pendleton.com>
parents: 2213
diff changeset
43 possible. When we do have to create a colormap keep track of it and
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals.
Bob Pendleton <bob@pendleton.com>
parents: 2213
diff changeset
44 reuse it. We're going to do this for both DirectColor and
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals.
Bob Pendleton <bob@pendleton.com>
parents: 2213
diff changeset
45 PseudoColor colormaps. */
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals.
Bob Pendleton <bob@pendleton.com>
parents: 2213
diff changeset
46
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals.
Bob Pendleton <bob@pendleton.com>
parents: 2213
diff changeset
47 Colormap
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals.
Bob Pendleton <bob@pendleton.com>
parents: 2213
diff changeset
48 X11_LookupColormap(Display * display, int scrNum, VisualID vid)
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals.
Bob Pendleton <bob@pendleton.com>
parents: 2213
diff changeset
49 {
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals.
Bob Pendleton <bob@pendleton.com>
parents: 2213
diff changeset
50 int i;
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals.
Bob Pendleton <bob@pendleton.com>
parents: 2213
diff changeset
51
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals.
Bob Pendleton <bob@pendleton.com>
parents: 2213
diff changeset
52 for (i = 0; i < numCmaps; i++) {
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals.
Bob Pendleton <bob@pendleton.com>
parents: 2213
diff changeset
53 if (cmapTable[i].display == display &&
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals.
Bob Pendleton <bob@pendleton.com>
parents: 2213
diff changeset
54 cmapTable[i].scrNum == scrNum &&
3010
a6694a812119 Modified and totally untested code to load the color tables for DirectColor and PseudoColor windows.
Bob Pendleton <bob@pendleton.com>
parents: 2859
diff changeset
55 cmapTable[i].visual.visualid == vid) {
a6694a812119 Modified and totally untested code to load the color tables for DirectColor and PseudoColor windows.
Bob Pendleton <bob@pendleton.com>
parents: 2859
diff changeset
56 return cmapTable[i].colormap;
2214
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals.
Bob Pendleton <bob@pendleton.com>
parents: 2213
diff changeset
57 }
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals.
Bob Pendleton <bob@pendleton.com>
parents: 2213
diff changeset
58 }
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals.
Bob Pendleton <bob@pendleton.com>
parents: 2213
diff changeset
59
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals.
Bob Pendleton <bob@pendleton.com>
parents: 2213
diff changeset
60 return 0;
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals.
Bob Pendleton <bob@pendleton.com>
parents: 2213
diff changeset
61 }
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals.
Bob Pendleton <bob@pendleton.com>
parents: 2213
diff changeset
62
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals.
Bob Pendleton <bob@pendleton.com>
parents: 2213
diff changeset
63
2213
59a667370c57 make indent
Bob Pendleton <bob@pendleton.com>
parents: 2211
diff changeset
64 void
2214
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals.
Bob Pendleton <bob@pendleton.com>
parents: 2213
diff changeset
65 X11_TrackColormap(Display * display, int scrNum, Colormap colormap,
3010
a6694a812119 Modified and totally untested code to load the color tables for DirectColor and PseudoColor windows.
Bob Pendleton <bob@pendleton.com>
parents: 2859
diff changeset
66 Visual * visual, XColor * ramp)
2213
59a667370c57 make indent
Bob Pendleton <bob@pendleton.com>
parents: 2211
diff changeset
67 {
59a667370c57 make indent
Bob Pendleton <bob@pendleton.com>
parents: 2211
diff changeset
68 int i;
3010
a6694a812119 Modified and totally untested code to load the color tables for DirectColor and PseudoColor windows.
Bob Pendleton <bob@pendleton.com>
parents: 2859
diff changeset
69 Uint16 *newramp;
a6694a812119 Modified and totally untested code to load the color tables for DirectColor and PseudoColor windows.
Bob Pendleton <bob@pendleton.com>
parents: 2859
diff changeset
70 int ncolors;
2213
59a667370c57 make indent
Bob Pendleton <bob@pendleton.com>
parents: 2211
diff changeset
71
2214
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals.
Bob Pendleton <bob@pendleton.com>
parents: 2213
diff changeset
72 /* search the table to find out if we already have this one. We
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals.
Bob Pendleton <bob@pendleton.com>
parents: 2213
diff changeset
73 only want one entry for each display, screen number, visualid,
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals.
Bob Pendleton <bob@pendleton.com>
parents: 2213
diff changeset
74 and colormap combination */
2213
59a667370c57 make indent
Bob Pendleton <bob@pendleton.com>
parents: 2211
diff changeset
75 for (i = 0; i < numCmaps; i++) {
59a667370c57 make indent
Bob Pendleton <bob@pendleton.com>
parents: 2211
diff changeset
76 if (cmapTable[i].display == display &&
59a667370c57 make indent
Bob Pendleton <bob@pendleton.com>
parents: 2211
diff changeset
77 cmapTable[i].scrNum == scrNum &&
3010
a6694a812119 Modified and totally untested code to load the color tables for DirectColor and PseudoColor windows.
Bob Pendleton <bob@pendleton.com>
parents: 2859
diff changeset
78 cmapTable[i].visual.visualid == visual->visualid &&
a6694a812119 Modified and totally untested code to load the color tables for DirectColor and PseudoColor windows.
Bob Pendleton <bob@pendleton.com>
parents: 2859
diff changeset
79 cmapTable[i].colormap == colormap) {
2213
59a667370c57 make indent
Bob Pendleton <bob@pendleton.com>
parents: 2211
diff changeset
80 return;
59a667370c57 make indent
Bob Pendleton <bob@pendleton.com>
parents: 2211
diff changeset
81 }
59a667370c57 make indent
Bob Pendleton <bob@pendleton.com>
parents: 2211
diff changeset
82 }
59a667370c57 make indent
Bob Pendleton <bob@pendleton.com>
parents: 2211
diff changeset
83
59a667370c57 make indent
Bob Pendleton <bob@pendleton.com>
parents: 2211
diff changeset
84 /* increase the table by one entry. If the table is NULL create the
59a667370c57 make indent
Bob Pendleton <bob@pendleton.com>
parents: 2211
diff changeset
85 first entrty */
2221
Sam Lantinga <slouken@libsdl.org>
parents: 2216
diff changeset
86 cmapTable =
Sam Lantinga <slouken@libsdl.org>
parents: 2216
diff changeset
87 SDL_realloc(cmapTable, (numCmaps + 1) * sizeof(cmapTableEntry));
2216
82a133b784c9 changed to use SDL_realloc()
Bob Pendleton <bob@pendleton.com>
parents: 2214
diff changeset
88 if (NULL == cmapTable) {
2213
59a667370c57 make indent
Bob Pendleton <bob@pendleton.com>
parents: 2211
diff changeset
89 SDL_SetError("Out of memory in X11_TrackColormap()");
59a667370c57 make indent
Bob Pendleton <bob@pendleton.com>
parents: 2211
diff changeset
90 return;
59a667370c57 make indent
Bob Pendleton <bob@pendleton.com>
parents: 2211
diff changeset
91 }
59a667370c57 make indent
Bob Pendleton <bob@pendleton.com>
parents: 2211
diff changeset
92
59a667370c57 make indent
Bob Pendleton <bob@pendleton.com>
parents: 2211
diff changeset
93 cmapTable[numCmaps].display = display;
59a667370c57 make indent
Bob Pendleton <bob@pendleton.com>
parents: 2211
diff changeset
94 cmapTable[numCmaps].scrNum = scrNum;
2214
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals.
Bob Pendleton <bob@pendleton.com>
parents: 2213
diff changeset
95 cmapTable[numCmaps].colormap = colormap;
2213
59a667370c57 make indent
Bob Pendleton <bob@pendleton.com>
parents: 2211
diff changeset
96 SDL_memcpy(&cmapTable[numCmaps].visual, visual, sizeof(Visual));
3010
a6694a812119 Modified and totally untested code to load the color tables for DirectColor and PseudoColor windows.
Bob Pendleton <bob@pendleton.com>
parents: 2859
diff changeset
97 cmapTable[numCmaps].ramp = NULL;
a6694a812119 Modified and totally untested code to load the color tables for DirectColor and PseudoColor windows.
Bob Pendleton <bob@pendleton.com>
parents: 2859
diff changeset
98
3044
b36579172f27 Changes to hopefully handle the creation of a colormap for 8 bit PseudoColor visuals in X11
Bob Pendleton <bob@pendleton.com>
parents: 3010
diff changeset
99 if (ramp != NULL) {
3052
Sam Lantinga <slouken@libsdl.org>
parents: 3044
diff changeset
100 newramp = SDL_malloc(SDL_GammaRampSize);
Sam Lantinga <slouken@libsdl.org>
parents: 3044
diff changeset
101 if (NULL == newramp) {
Sam Lantinga <slouken@libsdl.org>
parents: 3044
diff changeset
102 SDL_SetError("Out of memory in X11_TrackColormap()");
Sam Lantinga <slouken@libsdl.org>
parents: 3044
diff changeset
103 return;
Sam Lantinga <slouken@libsdl.org>
parents: 3044
diff changeset
104 }
Sam Lantinga <slouken@libsdl.org>
parents: 3044
diff changeset
105 SDL_memset(newramp, 0, SDL_GammaRampSize);
Sam Lantinga <slouken@libsdl.org>
parents: 3044
diff changeset
106 cmapTable[numCmaps].ramp = newramp;
3010
a6694a812119 Modified and totally untested code to load the color tables for DirectColor and PseudoColor windows.
Bob Pendleton <bob@pendleton.com>
parents: 2859
diff changeset
107
3052
Sam Lantinga <slouken@libsdl.org>
parents: 3044
diff changeset
108 ncolors = cmapTable[numCmaps].visual.map_entries;
3010
a6694a812119 Modified and totally untested code to load the color tables for DirectColor and PseudoColor windows.
Bob Pendleton <bob@pendleton.com>
parents: 2859
diff changeset
109
3052
Sam Lantinga <slouken@libsdl.org>
parents: 3044
diff changeset
110 for (i = 0; i < ncolors; i++) {
Sam Lantinga <slouken@libsdl.org>
parents: 3044
diff changeset
111 newramp[(0 * 256) + i] = ramp[i].red;
Sam Lantinga <slouken@libsdl.org>
parents: 3044
diff changeset
112 newramp[(1 * 256) + i] = ramp[i].green;
Sam Lantinga <slouken@libsdl.org>
parents: 3044
diff changeset
113 newramp[(2 * 256) + i] = ramp[i].blue;
Sam Lantinga <slouken@libsdl.org>
parents: 3044
diff changeset
114 }
3010
a6694a812119 Modified and totally untested code to load the color tables for DirectColor and PseudoColor windows.
Bob Pendleton <bob@pendleton.com>
parents: 2859
diff changeset
115 }
2213
59a667370c57 make indent
Bob Pendleton <bob@pendleton.com>
parents: 2211
diff changeset
116
59a667370c57 make indent
Bob Pendleton <bob@pendleton.com>
parents: 2211
diff changeset
117 numCmaps++;
59a667370c57 make indent
Bob Pendleton <bob@pendleton.com>
parents: 2211
diff changeset
118 }
59a667370c57 make indent
Bob Pendleton <bob@pendleton.com>
parents: 2211
diff changeset
119
2214
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals.
Bob Pendleton <bob@pendleton.com>
parents: 2213
diff changeset
120 /* The problem is that you have to have at least one DirectColor
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals.
Bob Pendleton <bob@pendleton.com>
parents: 2213
diff changeset
121 colormap before you can set the gamma ramps or read the gamma
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals.
Bob Pendleton <bob@pendleton.com>
parents: 2213
diff changeset
122 ramps. If the application has created a DirectColor window then the
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals.
Bob Pendleton <bob@pendleton.com>
parents: 2213
diff changeset
123 cmapTable will have at least one colormap in it and everything is
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals.
Bob Pendleton <bob@pendleton.com>
parents: 2213
diff changeset
124 cool. If not, then we just fail */
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals.
Bob Pendleton <bob@pendleton.com>
parents: 2213
diff changeset
125
2162
1d23870d8c49 Added stubs for x11 gamma functions and enabled them in SDL_x11video.c
Bob Pendleton <bob@pendleton.com>
parents:
diff changeset
126 int
3500
4b594623401b Work in progress on multi-display support:
Sam Lantinga <slouken@libsdl.org>
parents: 3052
diff changeset
127 X11_SetDisplayGammaRamp(_THIS, SDL_VideoDisplay * sdl_display, Uint16 * ramp)
2162
1d23870d8c49 Added stubs for x11 gamma functions and enabled them in SDL_x11video.c
Bob Pendleton <bob@pendleton.com>
parents:
diff changeset
128 {
3010
a6694a812119 Modified and totally untested code to load the color tables for DirectColor and PseudoColor windows.
Bob Pendleton <bob@pendleton.com>
parents: 2859
diff changeset
129 Visual *visual;
2214
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals.
Bob Pendleton <bob@pendleton.com>
parents: 2213
diff changeset
130 Display *display;
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals.
Bob Pendleton <bob@pendleton.com>
parents: 2213
diff changeset
131 Colormap colormap;
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals.
Bob Pendleton <bob@pendleton.com>
parents: 2213
diff changeset
132 XColor *colorcells;
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals.
Bob Pendleton <bob@pendleton.com>
parents: 2213
diff changeset
133 int ncolors;
3010
a6694a812119 Modified and totally untested code to load the color tables for DirectColor and PseudoColor windows.
Bob Pendleton <bob@pendleton.com>
parents: 2859
diff changeset
134 int rmask, gmask, bmask;
a6694a812119 Modified and totally untested code to load the color tables for DirectColor and PseudoColor windows.
Bob Pendleton <bob@pendleton.com>
parents: 2859
diff changeset
135 int rshift, gshift, bshift;
2214
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals.
Bob Pendleton <bob@pendleton.com>
parents: 2213
diff changeset
136 int i;
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals.
Bob Pendleton <bob@pendleton.com>
parents: 2213
diff changeset
137 int j;
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals.
Bob Pendleton <bob@pendleton.com>
parents: 2213
diff changeset
138
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals.
Bob Pendleton <bob@pendleton.com>
parents: 2213
diff changeset
139 for (j = 0; j < numCmaps; j++) {
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals.
Bob Pendleton <bob@pendleton.com>
parents: 2213
diff changeset
140 if (cmapTable[j].visual.class == DirectColor) {
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals.
Bob Pendleton <bob@pendleton.com>
parents: 2213
diff changeset
141 display = cmapTable[j].display;
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals.
Bob Pendleton <bob@pendleton.com>
parents: 2213
diff changeset
142 colormap = cmapTable[j].colormap;
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals.
Bob Pendleton <bob@pendleton.com>
parents: 2213
diff changeset
143 ncolors = cmapTable[j].visual.map_entries;
3010
a6694a812119 Modified and totally untested code to load the color tables for DirectColor and PseudoColor windows.
Bob Pendleton <bob@pendleton.com>
parents: 2859
diff changeset
144 visual = &cmapTable[j].visual;
2214
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals.
Bob Pendleton <bob@pendleton.com>
parents: 2213
diff changeset
145
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals.
Bob Pendleton <bob@pendleton.com>
parents: 2213
diff changeset
146 colorcells = SDL_malloc(ncolors * sizeof(XColor));
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals.
Bob Pendleton <bob@pendleton.com>
parents: 2213
diff changeset
147 if (NULL == colorcells) {
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals.
Bob Pendleton <bob@pendleton.com>
parents: 2213
diff changeset
148 SDL_SetError("out of memory in X11_SetDisplayGammaRamp");
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals.
Bob Pendleton <bob@pendleton.com>
parents: 2213
diff changeset
149 return -1;
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals.
Bob Pendleton <bob@pendleton.com>
parents: 2213
diff changeset
150 }
3010
a6694a812119 Modified and totally untested code to load the color tables for DirectColor and PseudoColor windows.
Bob Pendleton <bob@pendleton.com>
parents: 2859
diff changeset
151 /* remember the new ramp */
3052
Sam Lantinga <slouken@libsdl.org>
parents: 3044
diff changeset
152 if (cmapTable[j].ramp == NULL) {
Sam Lantinga <slouken@libsdl.org>
parents: 3044
diff changeset
153 Uint16 *newramp = SDL_malloc(SDL_GammaRampSize);
Sam Lantinga <slouken@libsdl.org>
parents: 3044
diff changeset
154 if (NULL == newramp) {
Sam Lantinga <slouken@libsdl.org>
parents: 3044
diff changeset
155 SDL_SetError("Out of memory in X11_TrackColormap()");
Sam Lantinga <slouken@libsdl.org>
parents: 3044
diff changeset
156 return -1;
Sam Lantinga <slouken@libsdl.org>
parents: 3044
diff changeset
157 }
Sam Lantinga <slouken@libsdl.org>
parents: 3044
diff changeset
158 cmapTable[j].ramp = newramp;
Sam Lantinga <slouken@libsdl.org>
parents: 3044
diff changeset
159 }
3044
b36579172f27 Changes to hopefully handle the creation of a colormap for 8 bit PseudoColor visuals in X11
Bob Pendleton <bob@pendleton.com>
parents: 3010
diff changeset
160 SDL_memcpy(cmapTable[j].ramp, ramp, SDL_GammaRampSize);
2214
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals.
Bob Pendleton <bob@pendleton.com>
parents: 2213
diff changeset
161
3010
a6694a812119 Modified and totally untested code to load the color tables for DirectColor and PseudoColor windows.
Bob Pendleton <bob@pendleton.com>
parents: 2859
diff changeset
162 rshift = 0;
a6694a812119 Modified and totally untested code to load the color tables for DirectColor and PseudoColor windows.
Bob Pendleton <bob@pendleton.com>
parents: 2859
diff changeset
163 rmask = visual->red_mask;
a6694a812119 Modified and totally untested code to load the color tables for DirectColor and PseudoColor windows.
Bob Pendleton <bob@pendleton.com>
parents: 2859
diff changeset
164 while (0 == (rmask & 1)) {
a6694a812119 Modified and totally untested code to load the color tables for DirectColor and PseudoColor windows.
Bob Pendleton <bob@pendleton.com>
parents: 2859
diff changeset
165 rshift++;
a6694a812119 Modified and totally untested code to load the color tables for DirectColor and PseudoColor windows.
Bob Pendleton <bob@pendleton.com>
parents: 2859
diff changeset
166 rmask >>= 1;
a6694a812119 Modified and totally untested code to load the color tables for DirectColor and PseudoColor windows.
Bob Pendleton <bob@pendleton.com>
parents: 2859
diff changeset
167 }
a6694a812119 Modified and totally untested code to load the color tables for DirectColor and PseudoColor windows.
Bob Pendleton <bob@pendleton.com>
parents: 2859
diff changeset
168
a6694a812119 Modified and totally untested code to load the color tables for DirectColor and PseudoColor windows.
Bob Pendleton <bob@pendleton.com>
parents: 2859
diff changeset
169 /* printf("rmask = %4x rshift = %4d\n", rmask, rshift); */
2214
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals.
Bob Pendleton <bob@pendleton.com>
parents: 2213
diff changeset
170
3010
a6694a812119 Modified and totally untested code to load the color tables for DirectColor and PseudoColor windows.
Bob Pendleton <bob@pendleton.com>
parents: 2859
diff changeset
171 gshift = 0;
a6694a812119 Modified and totally untested code to load the color tables for DirectColor and PseudoColor windows.
Bob Pendleton <bob@pendleton.com>
parents: 2859
diff changeset
172 gmask = visual->green_mask;
a6694a812119 Modified and totally untested code to load the color tables for DirectColor and PseudoColor windows.
Bob Pendleton <bob@pendleton.com>
parents: 2859
diff changeset
173 while (0 == (gmask & 1)) {
a6694a812119 Modified and totally untested code to load the color tables for DirectColor and PseudoColor windows.
Bob Pendleton <bob@pendleton.com>
parents: 2859
diff changeset
174 gshift++;
a6694a812119 Modified and totally untested code to load the color tables for DirectColor and PseudoColor windows.
Bob Pendleton <bob@pendleton.com>
parents: 2859
diff changeset
175 gmask >>= 1;
a6694a812119 Modified and totally untested code to load the color tables for DirectColor and PseudoColor windows.
Bob Pendleton <bob@pendleton.com>
parents: 2859
diff changeset
176 }
a6694a812119 Modified and totally untested code to load the color tables for DirectColor and PseudoColor windows.
Bob Pendleton <bob@pendleton.com>
parents: 2859
diff changeset
177
a6694a812119 Modified and totally untested code to load the color tables for DirectColor and PseudoColor windows.
Bob Pendleton <bob@pendleton.com>
parents: 2859
diff changeset
178 /* printf("gmask = %4x gshift = %4d\n", gmask, gshift); */
a6694a812119 Modified and totally untested code to load the color tables for DirectColor and PseudoColor windows.
Bob Pendleton <bob@pendleton.com>
parents: 2859
diff changeset
179
a6694a812119 Modified and totally untested code to load the color tables for DirectColor and PseudoColor windows.
Bob Pendleton <bob@pendleton.com>
parents: 2859
diff changeset
180 bshift = 0;
a6694a812119 Modified and totally untested code to load the color tables for DirectColor and PseudoColor windows.
Bob Pendleton <bob@pendleton.com>
parents: 2859
diff changeset
181 bmask = visual->blue_mask;
a6694a812119 Modified and totally untested code to load the color tables for DirectColor and PseudoColor windows.
Bob Pendleton <bob@pendleton.com>
parents: 2859
diff changeset
182 while (0 == (bmask & 1)) {
a6694a812119 Modified and totally untested code to load the color tables for DirectColor and PseudoColor windows.
Bob Pendleton <bob@pendleton.com>
parents: 2859
diff changeset
183 bshift++;
a6694a812119 Modified and totally untested code to load the color tables for DirectColor and PseudoColor windows.
Bob Pendleton <bob@pendleton.com>
parents: 2859
diff changeset
184 bmask >>= 1;
a6694a812119 Modified and totally untested code to load the color tables for DirectColor and PseudoColor windows.
Bob Pendleton <bob@pendleton.com>
parents: 2859
diff changeset
185 }
a6694a812119 Modified and totally untested code to load the color tables for DirectColor and PseudoColor windows.
Bob Pendleton <bob@pendleton.com>
parents: 2859
diff changeset
186
a6694a812119 Modified and totally untested code to load the color tables for DirectColor and PseudoColor windows.
Bob Pendleton <bob@pendleton.com>
parents: 2859
diff changeset
187 /* printf("bmask = %4x bshift = %4d\n", bmask, bshift); */
2214
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals.
Bob Pendleton <bob@pendleton.com>
parents: 2213
diff changeset
188
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals.
Bob Pendleton <bob@pendleton.com>
parents: 2213
diff changeset
189 /* build the color table pixel values */
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals.
Bob Pendleton <bob@pendleton.com>
parents: 2213
diff changeset
190 for (i = 0; i < ncolors; i++) {
3010
a6694a812119 Modified and totally untested code to load the color tables for DirectColor and PseudoColor windows.
Bob Pendleton <bob@pendleton.com>
parents: 2859
diff changeset
191 Uint32 rbits = (rmask * i) / (ncolors - 1);
a6694a812119 Modified and totally untested code to load the color tables for DirectColor and PseudoColor windows.
Bob Pendleton <bob@pendleton.com>
parents: 2859
diff changeset
192 Uint32 gbits = (gmask * i) / (ncolors - 1);
a6694a812119 Modified and totally untested code to load the color tables for DirectColor and PseudoColor windows.
Bob Pendleton <bob@pendleton.com>
parents: 2859
diff changeset
193 Uint32 bbits = (bmask * i) / (ncolors - 1);
2214
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals.
Bob Pendleton <bob@pendleton.com>
parents: 2213
diff changeset
194
3010
a6694a812119 Modified and totally untested code to load the color tables for DirectColor and PseudoColor windows.
Bob Pendleton <bob@pendleton.com>
parents: 2859
diff changeset
195 Uint32 pix =
a6694a812119 Modified and totally untested code to load the color tables for DirectColor and PseudoColor windows.
Bob Pendleton <bob@pendleton.com>
parents: 2859
diff changeset
196 (rbits << rshift) | (gbits << gshift) | (bbits << bshift);
a6694a812119 Modified and totally untested code to load the color tables for DirectColor and PseudoColor windows.
Bob Pendleton <bob@pendleton.com>
parents: 2859
diff changeset
197
a6694a812119 Modified and totally untested code to load the color tables for DirectColor and PseudoColor windows.
Bob Pendleton <bob@pendleton.com>
parents: 2859
diff changeset
198 colorcells[i].pixel = pix;
a6694a812119 Modified and totally untested code to load the color tables for DirectColor and PseudoColor windows.
Bob Pendleton <bob@pendleton.com>
parents: 2859
diff changeset
199
2214
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals.
Bob Pendleton <bob@pendleton.com>
parents: 2213
diff changeset
200 colorcells[i].flags = DoRed | DoGreen | DoBlue;
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals.
Bob Pendleton <bob@pendleton.com>
parents: 2213
diff changeset
201
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals.
Bob Pendleton <bob@pendleton.com>
parents: 2213
diff changeset
202 colorcells[i].red = ramp[(0 * 256) + i];
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals.
Bob Pendleton <bob@pendleton.com>
parents: 2213
diff changeset
203 colorcells[i].green = ramp[(1 * 256) + i];
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals.
Bob Pendleton <bob@pendleton.com>
parents: 2213
diff changeset
204 colorcells[i].blue = ramp[(2 * 256) + i];
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals.
Bob Pendleton <bob@pendleton.com>
parents: 2213
diff changeset
205 }
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals.
Bob Pendleton <bob@pendleton.com>
parents: 2213
diff changeset
206
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals.
Bob Pendleton <bob@pendleton.com>
parents: 2213
diff changeset
207 XStoreColors(display, colormap, colorcells, ncolors);
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals.
Bob Pendleton <bob@pendleton.com>
parents: 2213
diff changeset
208 XFlush(display);
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals.
Bob Pendleton <bob@pendleton.com>
parents: 2213
diff changeset
209 SDL_free(colorcells);
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals.
Bob Pendleton <bob@pendleton.com>
parents: 2213
diff changeset
210 }
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals.
Bob Pendleton <bob@pendleton.com>
parents: 2213
diff changeset
211 }
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals.
Bob Pendleton <bob@pendleton.com>
parents: 2213
diff changeset
212
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals.
Bob Pendleton <bob@pendleton.com>
parents: 2213
diff changeset
213 return 0;
2162
1d23870d8c49 Added stubs for x11 gamma functions and enabled them in SDL_x11video.c
Bob Pendleton <bob@pendleton.com>
parents:
diff changeset
214 }
1d23870d8c49 Added stubs for x11 gamma functions and enabled them in SDL_x11video.c
Bob Pendleton <bob@pendleton.com>
parents:
diff changeset
215
1d23870d8c49 Added stubs for x11 gamma functions and enabled them in SDL_x11video.c
Bob Pendleton <bob@pendleton.com>
parents:
diff changeset
216 int
3500
4b594623401b Work in progress on multi-display support:
Sam Lantinga <slouken@libsdl.org>
parents: 3052
diff changeset
217 X11_GetDisplayGammaRamp(_THIS, SDL_VideoDisplay * display, Uint16 * ramp)
2162
1d23870d8c49 Added stubs for x11 gamma functions and enabled them in SDL_x11video.c
Bob Pendleton <bob@pendleton.com>
parents:
diff changeset
218 {
2214
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals.
Bob Pendleton <bob@pendleton.com>
parents: 2213
diff changeset
219 int i;
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals.
Bob Pendleton <bob@pendleton.com>
parents: 2213
diff changeset
220
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals.
Bob Pendleton <bob@pendleton.com>
parents: 2213
diff changeset
221 /* find the first DirectColor colormap and use it to get the gamma
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals.
Bob Pendleton <bob@pendleton.com>
parents: 2213
diff changeset
222 ramp */
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals.
Bob Pendleton <bob@pendleton.com>
parents: 2213
diff changeset
223
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals.
Bob Pendleton <bob@pendleton.com>
parents: 2213
diff changeset
224 for (i = 0; i < numCmaps; i++) {
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals.
Bob Pendleton <bob@pendleton.com>
parents: 2213
diff changeset
225 if (cmapTable[i].visual.class == DirectColor) {
3044
b36579172f27 Changes to hopefully handle the creation of a colormap for 8 bit PseudoColor visuals in X11
Bob Pendleton <bob@pendleton.com>
parents: 3010
diff changeset
226 SDL_memcpy(ramp, cmapTable[i].ramp, SDL_GammaRampSize);
3010
a6694a812119 Modified and totally untested code to load the color tables for DirectColor and PseudoColor windows.
Bob Pendleton <bob@pendleton.com>
parents: 2859
diff changeset
227 return 0;
2214
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals.
Bob Pendleton <bob@pendleton.com>
parents: 2213
diff changeset
228 }
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals.
Bob Pendleton <bob@pendleton.com>
parents: 2213
diff changeset
229 }
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals.
Bob Pendleton <bob@pendleton.com>
parents: 2213
diff changeset
230
3010
a6694a812119 Modified and totally untested code to load the color tables for DirectColor and PseudoColor windows.
Bob Pendleton <bob@pendleton.com>
parents: 2859
diff changeset
231 return -1;
2162
1d23870d8c49 Added stubs for x11 gamma functions and enabled them in SDL_x11video.c
Bob Pendleton <bob@pendleton.com>
parents:
diff changeset
232 }