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annotate src/video/Xext/Xinerama/Xinerama.c @ 2036:12ef90a41631

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Pfiou, all of it to update, faster to rewrite from scratch?
author Patrice Mandin <patmandin@gmail.com>
date Fri, 22 Sep 2006 21:52:20 +0000
parents c121d94672cb
children 81dde1b00bf1
rev   line source
292
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1 /* $Xorg: XPanoramiX.c,v 1.4 2000/08/17 19:45:51 cpqbld Exp $ */
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2 /*****************************************************************
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3 Copyright (c) 1991, 1997 Digital Equipment Corporation, Maynard, Massachusetts.
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4 Permission is hereby granted, free of charge, to any person obtaining a copy
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5 of this software and associated documentation files (the "Software"), to deal
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6 in the Software without restriction, including without limitation the rights
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7 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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8 copies of the Software.
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9
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10 The above copyright notice and this permission notice shall be included in
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11 all copies or substantial portions of the Software.
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12
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13 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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14 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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15 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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16 DIGITAL EQUIPMENT CORPORATION BE LIABLE FOR ANY CLAIM, DAMAGES, INCLUDING,
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17 BUT NOT LIMITED TO CONSEQUENTIAL OR INCIDENTAL DAMAGES, OR OTHER LIABILITY,
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18 WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR
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19 IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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20
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21 Except as contained in this notice, the name of Digital Equipment Corporation
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22 shall not be used in advertising or otherwise to promote the sale, use or other
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23 dealings in this Software without prior written authorization from Digital
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24 Equipment Corporation.
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25 ******************************************************************/
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26 /* $XFree86: xc/lib/Xinerama/Xinerama.c,v 1.2 2001/07/23 17:20:28 dawes Exp $ */
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27
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28 #define NEED_EVENTS
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29 #define NEED_REPLIES
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30
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31 #include <X11/Xlibint.h>
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32 #include <X11/Xutil.h>
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33 #include "../extensions/Xext.h"
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34 #include "../extensions/extutil.h" /* in ../include */
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35 #include "../extensions/panoramiXext.h"
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36 #include "../extensions/panoramiXproto.h" /* in ../include */
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37 #include "../extensions/Xinerama.h"
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38
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39 static XExtensionInfo _panoramiX_ext_info_data;
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40 static XExtensionInfo *panoramiX_ext_info = &_panoramiX_ext_info_data;
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41 static /* const */ char *panoramiX_extension_name = PANORAMIX_PROTOCOL_NAME;
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42
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43 #define PanoramiXCheckExtension(dpy,i,val) \
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44 XextCheckExtension (dpy, i, panoramiX_extension_name, val)
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45 #define PanoramiXSimpleCheckExtension(dpy,i) \
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46 XextSimpleCheckExtension (dpy, i, panoramiX_extension_name)
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47
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48 static int close_display();
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49 static /* const */ XExtensionHooks panoramiX_extension_hooks = {
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50 NULL, /* create_gc */
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51 NULL, /* copy_gc */
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52 NULL, /* flush_gc */
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53 NULL, /* free_gc */
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54 NULL, /* create_font */
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55 NULL, /* free_font */
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56 close_display, /* close_display */
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57 NULL, /* wire_to_event */
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58 NULL, /* event_to_wire */
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59 NULL, /* error */
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60 NULL, /* error_string */
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61 };
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62
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63 static
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64 XEXT_GENERATE_FIND_DISPLAY(find_display, panoramiX_ext_info,
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65 panoramiX_extension_name,
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66 &panoramiX_extension_hooks, 0, NULL)
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67 static XEXT_GENERATE_CLOSE_DISPLAY(close_display, panoramiX_ext_info)
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68 /****************************************************************************
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69 * *
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70 * PanoramiX public interfaces *
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71 * *
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72 ****************************************************************************/
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73 Bool SDL_NAME(XPanoramiXQueryExtension) (Display * dpy,
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74 int *event_basep,
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75 int *error_basep)
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76 {
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77 XExtDisplayInfo *info = find_display(dpy);
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78
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79 if (XextHasExtension(info)) {
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80 *event_basep = info->codes->first_event;
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81 *error_basep = info->codes->first_error;
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82 return True;
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83 } else {
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84 return False;
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85 }
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86 }
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87
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88
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89 Status SDL_NAME(XPanoramiXQueryVersion) (Display * dpy,
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90 int *major_versionp,
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91 int *minor_versionp)
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92 {
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93 XExtDisplayInfo *info = find_display(dpy);
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94 xPanoramiXQueryVersionReply rep;
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95 register xPanoramiXQueryVersionReq *req;
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96
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97 PanoramiXCheckExtension(dpy, info, 0);
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98
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99 LockDisplay(dpy);
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100 GetReq(PanoramiXQueryVersion, req);
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101 req->reqType = info->codes->major_opcode;
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102 req->panoramiXReqType = X_PanoramiXQueryVersion;
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103 req->clientMajor = PANORAMIX_MAJOR_VERSION;
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104 req->clientMinor = PANORAMIX_MINOR_VERSION;
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105 if (!_XReply(dpy, (xReply *) & rep, 0, xTrue)) {
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106 UnlockDisplay(dpy);
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107 SyncHandle();
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108 return 0;
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109 }
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110 *major_versionp = rep.majorVersion;
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111 *minor_versionp = rep.minorVersion;
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112 UnlockDisplay(dpy);
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113 SyncHandle();
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114 return 1;
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115 }
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116
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117 SDL_NAME(XPanoramiXInfo) * SDL_NAME(XPanoramiXAllocInfo) (void)
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118 {
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119 return (SDL_NAME(XPanoramiXInfo) *)
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120 Xmalloc(sizeof(SDL_NAME(XPanoramiXInfo)));
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121 }
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122
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123 Status SDL_NAME(XPanoramiXGetState) (Display * dpy,
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124 Drawable drawable,
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125 SDL_NAME(XPanoramiXInfo) *
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126 panoramiX_info)
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127 {
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128 XExtDisplayInfo *info = find_display(dpy);
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129 xPanoramiXGetStateReply rep;
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130 register xPanoramiXGetStateReq *req;
292
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131
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132 PanoramiXCheckExtension(dpy, info, 0);
292
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133
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134 LockDisplay(dpy);
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135 GetReq(PanoramiXGetState, req);
292
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136 req->reqType = info->codes->major_opcode;
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137 req->panoramiXReqType = X_PanoramiXGetState;
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138 req->window = drawable;
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139 if (!_XReply(dpy, (xReply *) & rep, 0, xTrue)) {
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140 UnlockDisplay(dpy);
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141 SyncHandle();
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142 return 0;
292
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143 }
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144 UnlockDisplay(dpy);
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145 SyncHandle();
292
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146 panoramiX_info->window = rep.window;
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147 panoramiX_info->State = rep.state;
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148 return 1;
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149 }
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150
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151 Status SDL_NAME(XPanoramiXGetScreenCount) (Display * dpy,
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152 Drawable drawable,
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153 SDL_NAME(XPanoramiXInfo) *
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154 panoramiX_info)
292
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155 {
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156 XExtDisplayInfo *info = find_display(dpy);
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157 xPanoramiXGetScreenCountReply rep;
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158 register xPanoramiXGetScreenCountReq *req;
292
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159
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160 PanoramiXCheckExtension(dpy, info, 0);
292
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161
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162 LockDisplay(dpy);
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163 GetReq(PanoramiXGetScreenCount, req);
292
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164 req->reqType = info->codes->major_opcode;
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165 req->panoramiXReqType = X_PanoramiXGetScreenCount;
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166 req->window = drawable;
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167 if (!_XReply(dpy, (xReply *) & rep, 0, xTrue)) {
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168 UnlockDisplay(dpy);
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169 SyncHandle();
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170 return 0;
292
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171 }
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172 UnlockDisplay(dpy);
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173 SyncHandle();
292
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174 panoramiX_info->window = rep.window;
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175 panoramiX_info->ScreenCount = rep.ScreenCount;
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176 return 1;
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177 }
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178
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179 Status SDL_NAME(XPanoramiXGetScreenSize) (Display * dpy,
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180 Drawable drawable,
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181 int screen_num,
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182 SDL_NAME(XPanoramiXInfo) *
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183 panoramiX_info)
292
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184 {
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185 XExtDisplayInfo *info = find_display(dpy);
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186 xPanoramiXGetScreenSizeReply rep;
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187 register xPanoramiXGetScreenSizeReq *req;
292
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188
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189 PanoramiXCheckExtension(dpy, info, 0);
292
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190
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191 LockDisplay(dpy);
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192 GetReq(PanoramiXGetScreenSize, req);
292
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193 req->reqType = info->codes->major_opcode;
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194 req->panoramiXReqType = X_PanoramiXGetScreenSize;
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195 req->window = drawable;
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196 req->screen = screen_num; /* need to define */
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197 if (!_XReply(dpy, (xReply *) & rep, 0, xTrue)) {
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198 UnlockDisplay(dpy);
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199 SyncHandle();
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200 return 0;
292
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201 }
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202 UnlockDisplay(dpy);
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203 SyncHandle();
292
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204 panoramiX_info->window = rep.window;
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diff changeset
205 panoramiX_info->screen = rep.screen;
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206 panoramiX_info->width = rep.width;
292
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diff changeset
207 panoramiX_info->height = rep.height;
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208 return 1;
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209 }
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210
eadc0746dfaf Added SDL_LockRect() and SDL_UnlockRect()
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diff changeset
211 /*******************************************************************\
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diff changeset
212 Alternate interface to make up for shortcomings in the original,
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diff changeset
213 namely, the omission of the screen origin. The new interface is
eadc0746dfaf Added SDL_LockRect() and SDL_UnlockRect()
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diff changeset
214 in the "Xinerama" namespace instead of "PanoramiX".
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215 \*******************************************************************/
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216
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217 Bool SDL_NAME(XineramaQueryExtension) (Display * dpy,
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218 int *event_base, int *error_base)
292
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diff changeset
219 {
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220 return SDL_NAME(XPanoramiXQueryExtension) (dpy, event_base, error_base);
292
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diff changeset
221 }
eadc0746dfaf Added SDL_LockRect() and SDL_UnlockRect()
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diff changeset
222
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223 Status SDL_NAME(XineramaQueryVersion) (Display * dpy, int *major, int *minor)
292
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diff changeset
224 {
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225 return SDL_NAME(XPanoramiXQueryVersion) (dpy, major, minor);
292
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diff changeset
226 }
eadc0746dfaf Added SDL_LockRect() and SDL_UnlockRect()
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diff changeset
227
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228 Bool SDL_NAME(XineramaIsActive) (Display * dpy)
292
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diff changeset
229 {
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230 xXineramaIsActiveReply rep;
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231 xXineramaIsActiveReq *req;
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232 XExtDisplayInfo *info = find_display(dpy);
292
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233
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234 if (!XextHasExtension(info))
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235 return False; /* server doesn't even have the extension */
292
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diff changeset
236
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237 LockDisplay(dpy);
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238 GetReq(XineramaIsActive, req);
292
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diff changeset
239 req->reqType = info->codes->major_opcode;
eadc0746dfaf Added SDL_LockRect() and SDL_UnlockRect()
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diff changeset
240 req->panoramiXReqType = X_XineramaIsActive;
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241 if (!_XReply(dpy, (xReply *) & rep, 0, xTrue)) {
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242 UnlockDisplay(dpy);
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243 SyncHandle();
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244 return False;
292
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diff changeset
245 }
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246 UnlockDisplay(dpy);
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247 SyncHandle();
292
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parents:
diff changeset
248 return rep.state;
eadc0746dfaf Added SDL_LockRect() and SDL_UnlockRect()
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
249 }
eadc0746dfaf Added SDL_LockRect() and SDL_UnlockRect()
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diff changeset
250
eadc0746dfaf Added SDL_LockRect() and SDL_UnlockRect()
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parents:
diff changeset
251 #include <stdio.h>
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diff changeset
252
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diff changeset
253 SDL_NAME(XineramaScreenInfo) *
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254 SDL_NAME(XineramaQueryScreens) (Display * dpy, int *number)
292
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parents:
diff changeset
255 {
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256 XExtDisplayInfo *info = find_display(dpy);
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257 xXineramaQueryScreensReply rep;
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258 xXineramaQueryScreensReq *req;
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259 SDL_NAME(XineramaScreenInfo) * scrnInfo = NULL;
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260
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261 PanoramiXCheckExtension(dpy, info, 0);
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262
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263 LockDisplay(dpy);
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264 GetReq(XineramaQueryScreens, req);
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265 req->reqType = info->codes->major_opcode;
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266 req->panoramiXReqType = X_XineramaQueryScreens;
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267 if (!_XReply(dpy, (xReply *) & rep, 0, xFalse)) {
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268 UnlockDisplay(dpy);
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269 SyncHandle();
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270 return NULL;
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271 }
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272
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273 if (rep.number) {
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274 if ((scrnInfo =
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275 Xmalloc(sizeof(SDL_NAME(XineramaScreenInfo)) * rep.number))) {
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276 xXineramaScreenInfo scratch;
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277 int i;
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278
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279 for (i = 0; i < rep.number; i++) {
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280 _XRead(dpy, (char *) (&scratch), sz_XineramaScreenInfo);
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281 scrnInfo[i].screen_number = i;
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282 scrnInfo[i].x_org = scratch.x_org;
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283 scrnInfo[i].y_org = scratch.y_org;
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284 scrnInfo[i].width = scratch.width;
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285 scrnInfo[i].height = scratch.height;
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286 }
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287
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288 *number = rep.number;
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289 } else
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290 _XEatData(dpy, rep.length << 2);
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291 }
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292
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293 UnlockDisplay(dpy);
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294 SyncHandle();
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295 return scrnInfo;
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296 }
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297
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298 /* vi: set ts=4 sw=4 expandtab: */