sdl-ios-xcode: src/video/x11/SDL

annotate src/video/x11/SDL_x11gamma.c @ 4589:8d8a889530eb

Fix blending modes for primitives.

author	Sunny Sachanandani <sunnysachanandani@gmail.com>
date	Thu, 01 Jul 2010 07:35:15 +0530
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 1d75c38e1e5c indent Sam Lantinga <slouken@libsdl.org> parents: 2216 diff changeset	86 cmapTable =
1d75c38e1e5c indent 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 b7197d7e8566 indent Sam Lantinga <slouken@libsdl.org> parents: 3044 diff changeset	100 newramp = SDL_malloc(SDL_GammaRampSize);
b7197d7e8566 indent Sam Lantinga <slouken@libsdl.org> parents: 3044 diff changeset	101 if (NULL == newramp) {
b7197d7e8566 indent Sam Lantinga <slouken@libsdl.org> parents: 3044 diff changeset	102 SDL_SetError("Out of memory in X11_TrackColormap()");
b7197d7e8566 indent Sam Lantinga <slouken@libsdl.org> parents: 3044 diff changeset	103 return;
b7197d7e8566 indent Sam Lantinga <slouken@libsdl.org> parents: 3044 diff changeset	104 }
b7197d7e8566 indent Sam Lantinga <slouken@libsdl.org> parents: 3044 diff changeset	105 SDL_memset(newramp, 0, SDL_GammaRampSize);
b7197d7e8566 indent 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 b7197d7e8566 indent 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 b7197d7e8566 indent Sam Lantinga <slouken@libsdl.org> parents: 3044 diff changeset	110 for (i = 0; i < ncolors; i++) {
b7197d7e8566 indent Sam Lantinga <slouken@libsdl.org> parents: 3044 diff changeset	111 newramp[(0 * 256) + i] = ramp[i].red;
b7197d7e8566 indent Sam Lantinga <slouken@libsdl.org> parents: 3044 diff changeset	112 newramp[(1 * 256) + i] = ramp[i].green;
b7197d7e8566 indent Sam Lantinga <slouken@libsdl.org> parents: 3044 diff changeset	113 newramp[(2 * 256) + i] = ramp[i].blue;
b7197d7e8566 indent 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 b7197d7e8566 indent Sam Lantinga <slouken@libsdl.org> parents: 3044 diff changeset	152 if (cmapTable[j].ramp == NULL) {
b7197d7e8566 indent Sam Lantinga <slouken@libsdl.org> parents: 3044 diff changeset	153 Uint16 *newramp = SDL_malloc(SDL_GammaRampSize);
b7197d7e8566 indent Sam Lantinga <slouken@libsdl.org> parents: 3044 diff changeset	154 if (NULL == newramp) {
b7197d7e8566 indent Sam Lantinga <slouken@libsdl.org> parents: 3044 diff changeset	155 SDL_SetError("Out of memory in X11_TrackColormap()");
b7197d7e8566 indent Sam Lantinga <slouken@libsdl.org> parents: 3044 diff changeset	156 return -1;
b7197d7e8566 indent Sam Lantinga <slouken@libsdl.org> parents: 3044 diff changeset	157 }
b7197d7e8566 indent Sam Lantinga <slouken@libsdl.org> parents: 3044 diff changeset	158 cmapTable[j].ramp = newramp;
b7197d7e8566 indent 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 }

Mercurial > sdl-ios-xcode

annotate src/video/x11/SDL_x11gamma.c @ 4589:8d8a889530eb