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annotate src/video/x11/SDL_x11modes.c @ 2202:98e76ba7d5a4

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Merged fix for bug #457 from SDL 1.2
author Sam Lantinga <slouken@libsdl.org>
date Sun, 15 Jul 2007 21:54:16 +0000
parents 7177581dc9fa
children 99210400e8b9
rev   line source
1950
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2006 Sam Lantinga
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4
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5 This library is free software; you can redistribute it and/or
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6 modify it under the terms of the GNU Lesser General Public
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7 License as published by the Free Software Foundation; either
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8 version 2.1 of the License, or (at your option) any later version.
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9
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10 This library is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 Lesser General Public License for more details.
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14
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15 You should have received a copy of the GNU Lesser General Public
a344e42bce3b Started work on the new X11 driver.
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16 License along with this library; if not, write to the Free Software
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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18
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19 Sam Lantinga
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20 slouken@libsdl.org
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21 */
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22 #include "SDL_config.h"
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23
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24 #include "SDL_x11video.h"
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25
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26
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27 static int
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28 get_visualinfo(Display * display, int screen, XVisualInfo * vinfo)
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29 {
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30 const char *visual_id = SDL_getenv("SDL_VIDEO_X11_VISUALID");
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31 int use_directcolor = 1;
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32 int depth;
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33
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34 /* Look for an exact visual, if requested */
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35 if (visual_id) {
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36 XVisualInfo *vi, template;
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37 int nvis;
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38
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39 SDL_zero(template);
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40 template.visualid = SDL_strtol(visual_id, NULL, 0);
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41 vi = XGetVisualInfo(display, VisualIDMask, &template, &nvis);
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42 if (vi) {
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43 *vinfo = *vi;
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44 XFree(vi);
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45 return 0;
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46 }
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47 }
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48
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49 depth = DefaultDepth(display, screen);
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50 if ((use_directcolor &&
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51 XMatchVisualInfo(display, screen, depth, DirectColor, vinfo)) ||
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52 XMatchVisualInfo(display, screen, depth, TrueColor, vinfo) ||
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53 XMatchVisualInfo(display, screen, depth, PseudoColor, vinfo) ||
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54 XMatchVisualInfo(display, screen, depth, StaticColor, vinfo)) {
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55 return 0;
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56 }
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57 return -1;
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58 }
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59
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60 void
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61 X11_InitModes(_THIS)
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62 {
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63 SDL_VideoData *data = (SDL_VideoData *) _this->driverdata;
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64 int screen;
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65 int n;
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66 XPixmapFormatValues *p;
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67
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68 p = XListPixmapFormats(data->display, &n);
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69 for (screen = 0; screen < ScreenCount(data->display); ++screen) {
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70 XVisualInfo vinfo;
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71 int i, bpp;
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72 Uint32 Rmask, Gmask, Bmask, Amask;
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73 SDL_VideoDisplay display;
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74 SDL_DisplayData *displaydata;
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75 SDL_DisplayMode mode;
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76
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77 if (get_visualinfo(data->display, screen, &vinfo) < 0) {
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78 continue;
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79 }
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80
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81 bpp = vinfo.depth;
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82 for (i = 0; i < n; ++i) {
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83 if (p[i].depth == vinfo.depth) {
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84 bpp = p[i].bits_per_pixel;
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85 break;
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86 }
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87 }
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88 Rmask = vinfo.visual->red_mask;
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89 Gmask = vinfo.visual->green_mask;
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90 Bmask = vinfo.visual->blue_mask;
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91 if (vinfo.depth == 32) {
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92 Amask = (0xFFFFFFFF & ~(Rmask | Gmask | Bmask));
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93 } else {
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94 Amask = 0;
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95 }
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96 mode.format =
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97 SDL_MasksToPixelFormatEnum(bpp, Rmask, Gmask, Bmask, Amask);
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98 mode.w = DisplayWidth(data->display, screen);
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99 mode.h = DisplayHeight(data->display, screen);
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100 mode.refresh_rate = 0;
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101 mode.driverdata = NULL;
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102
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103 displaydata = (SDL_DisplayData *) SDL_malloc(sizeof(*displaydata));
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104 if (!displaydata) {
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105 continue;
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106 }
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107 displaydata->screen = screen;
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108 displaydata->visual = vinfo.visual;
1951
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109 displaydata->depth = vinfo.depth;
1950
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110
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111 SDL_zero(display);
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112 display.desktop_mode = mode;
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113 display.current_mode = mode;
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114 display.driverdata = displaydata;
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115 SDL_AddVideoDisplay(&display);
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116 }
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117 XFree(p);
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118 }
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119
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120 void
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121 X11_GetDisplayModes(_THIS)
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122 {
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123 SDL_DisplayData *data = (SDL_DisplayData *) SDL_CurrentDisplay.driverdata;
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124 SDL_DisplayMode mode;
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125 //SDL_AddDisplayMode(_this->current_display, &mode);
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126 }
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127
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128 int
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129 X11_SetDisplayMode(_THIS, SDL_DisplayMode * mode)
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130 {
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131 //SDL_DisplayModeData *data = (SDL_DisplayModeData *) mode->driverdata;
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132 return -1;
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133 }
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134
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135 void
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136 X11_QuitModes(_THIS)
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137 {
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138 }
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139
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140 /* vi: set ts=4 sw=4 expandtab: */