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

annotate src/video/x11/SDL_x11gamma.c @ 2218:6cc82cad8b77

1.3 video API design chat

author	Sam Lantinga <slouken@libsdl.org>
date	Tue, 07 Aug 2007 07:08:25 +0000
parents	82a133b784c9
children	1d75c38e1e5c

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
1d23870d8c49 Added stubs for x11 gamma functions and enabled them in SDL_x11video.c Bob Pendleton <bob@pendleton.com> parents: diff changeset	3 Copyright (C) 1997-2006 Sam Lantinga
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
2213 59a667370c57 make indent Bob Pendleton <bob@pendleton.com> parents: 2211 diff changeset	26 static int numCmaps = 0;
59a667370c57 make indent Bob Pendleton <bob@pendleton.com> parents: 2211 diff changeset	27
59a667370c57 make indent Bob Pendleton <bob@pendleton.com> parents: 2211 diff changeset	28 typedef struct
59a667370c57 make indent Bob Pendleton <bob@pendleton.com> parents: 2211 diff changeset	29 {
59a667370c57 make indent Bob Pendleton <bob@pendleton.com> parents: 2211 diff changeset	30 Display *display;
59a667370c57 make indent Bob Pendleton <bob@pendleton.com> parents: 2211 diff changeset	31 int scrNum;
2214 e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	32 Colormap colormap;
2213 59a667370c57 make indent Bob Pendleton <bob@pendleton.com> parents: 2211 diff changeset	33 XStandardColormap cmap;
59a667370c57 make indent Bob Pendleton <bob@pendleton.com> parents: 2211 diff changeset	34 Visual visual;
59a667370c57 make indent Bob Pendleton <bob@pendleton.com> parents: 2211 diff changeset	35 } cmapTableEntry;
59a667370c57 make indent Bob Pendleton <bob@pendleton.com> parents: 2211 diff changeset	36
59a667370c57 make indent Bob Pendleton <bob@pendleton.com> parents: 2211 diff changeset	37 cmapTableEntry *cmapTable = NULL;
59a667370c57 make indent Bob Pendleton <bob@pendleton.com> parents: 2211 diff changeset	38
2214 e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	39 /* 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	40 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	41 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	42 PseudoColor colormaps. */
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	43
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	44 Colormap
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	45 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	46 {
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	47 int i;
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	48
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	49 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	50 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	51 cmapTable[i].scrNum == scrNum &&
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	52 cmapTable[i].cmap.visualid == vid) {
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	53 return cmapTable[i].cmap.colormap;
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	54 }
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	55 }
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	56
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	57 return 0;
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
2213 59a667370c57 make indent Bob Pendleton <bob@pendleton.com> parents: 2211 diff changeset	61 void
2214 e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	62 X11_TrackColormap(Display * display, int scrNum, Colormap colormap,
2213 59a667370c57 make indent Bob Pendleton <bob@pendleton.com> parents: 2211 diff changeset	63 XStandardColormap * cmap, Visual * visual)
59a667370c57 make indent Bob Pendleton <bob@pendleton.com> parents: 2211 diff changeset	64 {
59a667370c57 make indent Bob Pendleton <bob@pendleton.com> parents: 2211 diff changeset	65 int i;
59a667370c57 make indent Bob Pendleton <bob@pendleton.com> parents: 2211 diff changeset	66
2214 e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	67 /* 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	68 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	69 and colormap combination */
2213 59a667370c57 make indent Bob Pendleton <bob@pendleton.com> parents: 2211 diff changeset	70 for (i = 0; i < numCmaps; i++) {
59a667370c57 make indent Bob Pendleton <bob@pendleton.com> parents: 2211 diff changeset	71 if (cmapTable[i].display == display &&
59a667370c57 make indent Bob Pendleton <bob@pendleton.com> parents: 2211 diff changeset	72 cmapTable[i].scrNum == scrNum &&
2214 e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	73 cmapTable[i].cmap.visualid == cmap->visualid &&
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	74 cmapTable[i].cmap.colormap == colormap) {
2213 59a667370c57 make indent Bob Pendleton <bob@pendleton.com> parents: 2211 diff changeset	75 return;
59a667370c57 make indent Bob Pendleton <bob@pendleton.com> parents: 2211 diff changeset	76 }
59a667370c57 make indent Bob Pendleton <bob@pendleton.com> parents: 2211 diff changeset	77 }
59a667370c57 make indent Bob Pendleton <bob@pendleton.com> parents: 2211 diff changeset	78
59a667370c57 make indent Bob Pendleton <bob@pendleton.com> parents: 2211 diff changeset	79 /* 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	80 first entrty */
2216 82a133b784c9 changed to use SDL_realloc() Bob Pendleton <bob@pendleton.com> parents: 2214 diff changeset	81 cmapTable = SDL_realloc(cmapTable, (numCmaps + 1) * sizeof(cmapTableEntry));
82a133b784c9 changed to use SDL_realloc() Bob Pendleton <bob@pendleton.com> parents: 2214 diff changeset	82 if (NULL == cmapTable) {
2213 59a667370c57 make indent Bob Pendleton <bob@pendleton.com> parents: 2211 diff changeset	83 SDL_SetError("Out of memory in X11_TrackColormap()");
59a667370c57 make indent Bob Pendleton <bob@pendleton.com> parents: 2211 diff changeset	84 return;
59a667370c57 make indent Bob Pendleton <bob@pendleton.com> parents: 2211 diff changeset	85 }
59a667370c57 make indent Bob Pendleton <bob@pendleton.com> parents: 2211 diff changeset	86
59a667370c57 make indent Bob Pendleton <bob@pendleton.com> parents: 2211 diff changeset	87 cmapTable[numCmaps].display = display;
59a667370c57 make indent Bob Pendleton <bob@pendleton.com> parents: 2211 diff changeset	88 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	89 cmapTable[numCmaps].colormap = colormap;
2213 59a667370c57 make indent Bob Pendleton <bob@pendleton.com> parents: 2211 diff changeset	90 SDL_memcpy(&cmapTable[numCmaps].cmap, cmap, sizeof(XStandardColormap));
59a667370c57 make indent Bob Pendleton <bob@pendleton.com> parents: 2211 diff changeset	91 SDL_memcpy(&cmapTable[numCmaps].visual, visual, sizeof(Visual));
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 numCmaps++;
59a667370c57 make indent Bob Pendleton <bob@pendleton.com> parents: 2211 diff changeset	94 }
59a667370c57 make indent Bob Pendleton <bob@pendleton.com> parents: 2211 diff changeset	95
2214 e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	96 /* 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	97 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	98 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	99 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	100 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	101
2162 1d23870d8c49 Added stubs for x11 gamma functions and enabled them in SDL_x11video.c Bob Pendleton <bob@pendleton.com> parents: diff changeset	102 int
1d23870d8c49 Added stubs for x11 gamma functions and enabled them in SDL_x11video.c Bob Pendleton <bob@pendleton.com> parents: diff changeset	103 X11_SetDisplayGammaRamp(_THIS, Uint16 * ramp)
1d23870d8c49 Added stubs for x11 gamma functions and enabled them in SDL_x11video.c Bob Pendleton <bob@pendleton.com> parents: diff changeset	104 {
2214 e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	105 Display *display;
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	106 Colormap colormap;
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	107 XColor *colorcells;
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	108 int ncolors;
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	109 int i;
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	110 int j;
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	111
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	112 int rmax, gmax, bmax;
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	113 int rmul, gmul, bmul;
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	114
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	115 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	116 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	117 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	118 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	119 ncolors = cmapTable[j].visual.map_entries;
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	120
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	121 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	122 if (NULL == colorcells) {
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	123 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	124 return -1;
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	125 }
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	126
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	127 rmax = cmapTable[j].cmap.red_max + 1;
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	128 gmax = cmapTable[j].cmap.blue_max + 1;
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	129 bmax = cmapTable[j].cmap.green_max + 1;
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	130
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	131 rmul = cmapTable[j].cmap.red_mult;
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	132 gmul = cmapTable[j].cmap.blue_mult;
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	133 bmul = cmapTable[j].cmap.green_mult;
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	134
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	135 /* 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	136 for (i = 0; i < ncolors; i++) {
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	137 Uint32 red = (rmax * i) / ncolors;
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	138 Uint32 green = (gmax * i) / ncolors;
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	139 Uint32 blue = (bmax * i) / ncolors;
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	140
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	141 colorcells[i].pixel =
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	142 (red * rmul) \| (green * gmul) \| (blue * bmul);
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	143 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	144
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	145 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	146 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	147 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	148 }
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	149
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	150 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	151 XFlush(display);
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	152 SDL_free(colorcells);
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	153 }
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	154 }
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	155
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	156 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	157 }
1d23870d8c49 Added stubs for x11 gamma functions and enabled them in SDL_x11video.c Bob Pendleton <bob@pendleton.com> parents: diff changeset	158
1d23870d8c49 Added stubs for x11 gamma functions and enabled them in SDL_x11video.c Bob Pendleton <bob@pendleton.com> parents: diff changeset	159 int
1d23870d8c49 Added stubs for x11 gamma functions and enabled them in SDL_x11video.c Bob Pendleton <bob@pendleton.com> parents: diff changeset	160 X11_GetDisplayGammaRamp(_THIS, Uint16 * ramp)
1d23870d8c49 Added stubs for x11 gamma functions and enabled them in SDL_x11video.c Bob Pendleton <bob@pendleton.com> parents: diff changeset	161 {
2214 e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	162 Display *display;
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	163 Colormap colormap;
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	164 XColor *colorcells;
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	165 int ncolors;
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	166 int dc;
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	167 int i;
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	168
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	169 int rmax, gmax, bmax;
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	170 int rmul, gmul, bmul;
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	171
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	172 /* 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	173 ramp */
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	174
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	175 dc = -1;
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	176 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	177 if (cmapTable[i].visual.class == DirectColor) {
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	178 dc = i;
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	179 break;
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	180 }
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	181 }
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	182
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	183 if (dc < 0) {
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	184 return -1;
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	185 }
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	186
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	187 /* there is at least one DirectColor colormap in the cmapTable,
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	188 let's just get the entries from that colormap */
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	189
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	190 display = cmapTable[dc].display;
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	191 colormap = cmapTable[dc].colormap;
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	192 ncolors = cmapTable[dc].visual.map_entries;
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	193 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	194 if (NULL == colorcells) {
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	195 SDL_SetError("out of memory in X11_GetDisplayGammaRamp");
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	196 return -1;
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	197 }
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	198
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	199 rmax = cmapTable[dc].cmap.red_max + 1;
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	200 gmax = cmapTable[dc].cmap.blue_max + 1;
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	201 bmax = cmapTable[dc].cmap.green_max + 1;
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	202
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	203 rmul = cmapTable[dc].cmap.red_mult;
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	204 gmul = cmapTable[dc].cmap.blue_mult;
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	205 bmul = cmapTable[dc].cmap.green_mult;
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 /* 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	208 for (i = 0; i < ncolors; i++) {
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	209 Uint32 red = (rmax * i) / ncolors;
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	210 Uint32 green = (gmax * i) / ncolors;
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	211 Uint32 blue = (bmax * i) / ncolors;
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 colorcells[i].pixel = (red * rmul) \| (green * gmul) \| (blue * bmul);
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	214 }
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	215
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	216 XQueryColors(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	217
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	218 /* prepare the values to be returned. Note that SDL assumes that
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	219 gamma ramps are always 3 * 256 entries long with the red entries
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	220 in the first 256 elements, the green in the second 256 elements
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	221 and the blue in the last 256 elements */
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	222
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	223 for (i = 0; i < ncolors; i++) {
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	224 ramp[(0 * 256) + i] = colorcells[i].red;
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	225 ramp[(1 * 256) + i] = colorcells[i].green;
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	226 ramp[(2 * 256) + i] = colorcells[i].blue;
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	227 }
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 SDL_free(colorcells);
e7164a4dac62 Added gamma table support to X11. Also now supports DirectColor visuals. Bob Pendleton <bob@pendleton.com> parents: 2213 diff changeset	230 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	231 }

Mercurial > sdl-ios-xcode

annotate src/video/x11/SDL_x11gamma.c @ 2218:6cc82cad8b77