Mercurial > sdl-ios-xcode
annotate src/video/x11/SDL_x11modes.c @ 3772:9087a84cba51 gsoc2008_manymouse
First comments and code upgrades in X11
author | Szymon Wilczek <kazeuser@gmail.com> |
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date | Sat, 02 Aug 2008 17:40:49 +0000 |
parents | 7177581dc9fa |
children | 99210400e8b9 |
rev | line source |
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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 |
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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; |
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109 displaydata->depth = vinfo.depth; |
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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: */ |