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annotate src/video/Xext/Xinerama/Xinerama.c @ 4861:b67815cf9f25

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author Sam Lantinga <slouken@libsdl.org>
date Sun, 22 Aug 2010 12:43:27 -0700
parents 81dde1b00bf1
children
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 /* Apparently some X11 systems can't include this multiple times... */
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32 #ifndef SDL_INCLUDED_XLIBINT_H
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33 #define SDL_INCLUDED_XLIBINT_H 1
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34 #include <X11/Xlibint.h>
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35 #endif
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36
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37 #include <X11/Xutil.h>
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38 #include "../extensions/Xext.h"
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39 #include "../extensions/extutil.h" /* in ../include */
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40 #include "../extensions/panoramiXext.h"
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41 #include "../extensions/panoramiXproto.h" /* in ../include */
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42 #include "../extensions/Xinerama.h"
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43
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44 static XExtensionInfo _panoramiX_ext_info_data;
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45 static XExtensionInfo *panoramiX_ext_info = &_panoramiX_ext_info_data;
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46 static /* const */ char *panoramiX_extension_name = PANORAMIX_PROTOCOL_NAME;
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47
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48 #define PanoramiXCheckExtension(dpy,i,val) \
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49 XextCheckExtension (dpy, i, panoramiX_extension_name, val)
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50 #define PanoramiXSimpleCheckExtension(dpy,i) \
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51 XextSimpleCheckExtension (dpy, i, panoramiX_extension_name)
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52
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53 static int close_display();
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54 static /* const */ XExtensionHooks panoramiX_extension_hooks = {
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55 NULL, /* create_gc */
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56 NULL, /* copy_gc */
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57 NULL, /* flush_gc */
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58 NULL, /* free_gc */
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59 NULL, /* create_font */
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60 NULL, /* free_font */
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61 close_display, /* close_display */
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62 NULL, /* wire_to_event */
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63 NULL, /* event_to_wire */
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64 NULL, /* error */
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65 NULL, /* error_string */
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66 };
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67
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68 static
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69 XEXT_GENERATE_FIND_DISPLAY(find_display, panoramiX_ext_info,
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70 panoramiX_extension_name,
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71 &panoramiX_extension_hooks, 0, NULL)
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72 static XEXT_GENERATE_CLOSE_DISPLAY(close_display, panoramiX_ext_info)
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73 /****************************************************************************
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74 * *
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75 * PanoramiX public interfaces *
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76 * *
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77 ****************************************************************************/
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78 Bool SDL_NAME(XPanoramiXQueryExtension) (Display * dpy,
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79 int *event_basep,
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80 int *error_basep)
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81 {
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82 XExtDisplayInfo *info = find_display(dpy);
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83
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84 if (XextHasExtension(info)) {
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85 *event_basep = info->codes->first_event;
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86 *error_basep = info->codes->first_error;
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87 return True;
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88 } else {
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89 return False;
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90 }
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91 }
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92
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93
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94 Status SDL_NAME(XPanoramiXQueryVersion) (Display * dpy,
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95 int *major_versionp,
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96 int *minor_versionp)
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97 {
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98 XExtDisplayInfo *info = find_display(dpy);
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99 xPanoramiXQueryVersionReply rep;
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100 register xPanoramiXQueryVersionReq *req;
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101
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102 PanoramiXCheckExtension(dpy, info, 0);
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103
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104 LockDisplay(dpy);
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105 GetReq(PanoramiXQueryVersion, req);
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106 req->reqType = info->codes->major_opcode;
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107 req->panoramiXReqType = X_PanoramiXQueryVersion;
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108 req->clientMajor = PANORAMIX_MAJOR_VERSION;
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109 req->clientMinor = PANORAMIX_MINOR_VERSION;
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110 if (!_XReply(dpy, (xReply *) & rep, 0, xTrue)) {
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111 UnlockDisplay(dpy);
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112 SyncHandle();
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113 return 0;
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114 }
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115 *major_versionp = rep.majorVersion;
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116 *minor_versionp = rep.minorVersion;
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117 UnlockDisplay(dpy);
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118 SyncHandle();
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119 return 1;
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120 }
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121
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122 SDL_NAME(XPanoramiXInfo) * SDL_NAME(XPanoramiXAllocInfo) (void)
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123 {
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124 return (SDL_NAME(XPanoramiXInfo) *)
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125 Xmalloc(sizeof(SDL_NAME(XPanoramiXInfo)));
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126 }
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127
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128 Status SDL_NAME(XPanoramiXGetState) (Display * dpy,
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129 Drawable drawable,
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130 SDL_NAME(XPanoramiXInfo) *
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131 panoramiX_info)
292
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132 {
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133 XExtDisplayInfo *info = find_display(dpy);
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134 xPanoramiXGetStateReply rep;
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135 register xPanoramiXGetStateReq *req;
292
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136
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137 PanoramiXCheckExtension(dpy, info, 0);
292
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diff changeset
138
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139 LockDisplay(dpy);
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140 GetReq(PanoramiXGetState, req);
292
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141 req->reqType = info->codes->major_opcode;
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142 req->panoramiXReqType = X_PanoramiXGetState;
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143 req->window = drawable;
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144 if (!_XReply(dpy, (xReply *) & rep, 0, xTrue)) {
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145 UnlockDisplay(dpy);
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146 SyncHandle();
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147 return 0;
292
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148 }
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149 UnlockDisplay(dpy);
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150 SyncHandle();
292
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151 panoramiX_info->window = rep.window;
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152 panoramiX_info->State = rep.state;
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153 return 1;
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154 }
eadc0746dfaf Added SDL_LockRect() and SDL_UnlockRect()
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diff changeset
155
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156 Status SDL_NAME(XPanoramiXGetScreenCount) (Display * dpy,
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157 Drawable drawable,
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158 SDL_NAME(XPanoramiXInfo) *
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159 panoramiX_info)
292
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160 {
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161 XExtDisplayInfo *info = find_display(dpy);
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162 xPanoramiXGetScreenCountReply rep;
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163 register xPanoramiXGetScreenCountReq *req;
292
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164
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165 PanoramiXCheckExtension(dpy, info, 0);
292
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166
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167 LockDisplay(dpy);
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168 GetReq(PanoramiXGetScreenCount, req);
292
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169 req->reqType = info->codes->major_opcode;
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170 req->panoramiXReqType = X_PanoramiXGetScreenCount;
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171 req->window = drawable;
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172 if (!_XReply(dpy, (xReply *) & rep, 0, xTrue)) {
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173 UnlockDisplay(dpy);
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174 SyncHandle();
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175 return 0;
292
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176 }
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177 UnlockDisplay(dpy);
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178 SyncHandle();
292
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179 panoramiX_info->window = rep.window;
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180 panoramiX_info->ScreenCount = rep.ScreenCount;
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181 return 1;
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182 }
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183
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184 Status SDL_NAME(XPanoramiXGetScreenSize) (Display * dpy,
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185 Drawable drawable,
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186 int screen_num,
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187 SDL_NAME(XPanoramiXInfo) *
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188 panoramiX_info)
292
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189 {
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190 XExtDisplayInfo *info = find_display(dpy);
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191 xPanoramiXGetScreenSizeReply rep;
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192 register xPanoramiXGetScreenSizeReq *req;
292
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193
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194 PanoramiXCheckExtension(dpy, info, 0);
292
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195
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196 LockDisplay(dpy);
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197 GetReq(PanoramiXGetScreenSize, req);
292
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198 req->reqType = info->codes->major_opcode;
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199 req->panoramiXReqType = X_PanoramiXGetScreenSize;
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200 req->window = drawable;
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201 req->screen = screen_num; /* need to define */
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202 if (!_XReply(dpy, (xReply *) & rep, 0, xTrue)) {
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203 UnlockDisplay(dpy);
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204 SyncHandle();
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205 return 0;
292
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206 }
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207 UnlockDisplay(dpy);
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208 SyncHandle();
292
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diff changeset
209 panoramiX_info->window = rep.window;
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diff changeset
210 panoramiX_info->screen = rep.screen;
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211 panoramiX_info->width = rep.width;
292
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diff changeset
212 panoramiX_info->height = rep.height;
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213 return 1;
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diff changeset
214 }
eadc0746dfaf Added SDL_LockRect() and SDL_UnlockRect()
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215
eadc0746dfaf Added SDL_LockRect() and SDL_UnlockRect()
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diff changeset
216 /*******************************************************************\
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diff changeset
217 Alternate interface to make up for shortcomings in the original,
eadc0746dfaf Added SDL_LockRect() and SDL_UnlockRect()
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diff changeset
218 namely, the omission of the screen origin. The new interface is
eadc0746dfaf Added SDL_LockRect() and SDL_UnlockRect()
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diff changeset
219 in the "Xinerama" namespace instead of "PanoramiX".
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220 \*******************************************************************/
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diff changeset
221
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222 Bool SDL_NAME(XineramaQueryExtension) (Display * dpy,
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223 int *event_base, int *error_base)
292
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diff changeset
224 {
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225 return SDL_NAME(XPanoramiXQueryExtension) (dpy, event_base, error_base);
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 Status SDL_NAME(XineramaQueryVersion) (Display * dpy, int *major, int *minor)
292
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diff changeset
229 {
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230 return SDL_NAME(XPanoramiXQueryVersion) (dpy, major, minor);
292
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diff changeset
231 }
eadc0746dfaf Added SDL_LockRect() and SDL_UnlockRect()
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diff changeset
232
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233 Bool SDL_NAME(XineramaIsActive) (Display * dpy)
292
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diff changeset
234 {
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235 xXineramaIsActiveReply rep;
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236 xXineramaIsActiveReq *req;
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237 XExtDisplayInfo *info = find_display(dpy);
292
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diff changeset
238
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239 if (!XextHasExtension(info))
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240 return False; /* server doesn't even have the extension */
292
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diff changeset
241
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242 LockDisplay(dpy);
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243 GetReq(XineramaIsActive, req);
292
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diff changeset
244 req->reqType = info->codes->major_opcode;
eadc0746dfaf Added SDL_LockRect() and SDL_UnlockRect()
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diff changeset
245 req->panoramiXReqType = X_XineramaIsActive;
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246 if (!_XReply(dpy, (xReply *) & rep, 0, xTrue)) {
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247 UnlockDisplay(dpy);
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248 SyncHandle();
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249 return False;
292
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diff changeset
250 }
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251 UnlockDisplay(dpy);
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diff changeset
252 SyncHandle();
292
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diff changeset
253 return rep.state;
eadc0746dfaf Added SDL_LockRect() and SDL_UnlockRect()
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
254 }
eadc0746dfaf Added SDL_LockRect() and SDL_UnlockRect()
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diff changeset
255
eadc0746dfaf Added SDL_LockRect() and SDL_UnlockRect()
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parents:
diff changeset
256 #include <stdio.h>
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257
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258 SDL_NAME(XineramaScreenInfo) *
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259 SDL_NAME(XineramaQueryScreens) (Display * dpy, int *number)
292
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260 {
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261 XExtDisplayInfo *info = find_display(dpy);
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262 xXineramaQueryScreensReply rep;
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263 xXineramaQueryScreensReq *req;
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264 SDL_NAME(XineramaScreenInfo) * scrnInfo = NULL;
292
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265
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266 PanoramiXCheckExtension(dpy, info, 0);
292
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267
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268 LockDisplay(dpy);
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269 GetReq(XineramaQueryScreens, req);
292
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270 req->reqType = info->codes->major_opcode;
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271 req->panoramiXReqType = X_XineramaQueryScreens;
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272 if (!_XReply(dpy, (xReply *) & rep, 0, xFalse)) {
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273 UnlockDisplay(dpy);
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274 SyncHandle();
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275 return NULL;
292
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276 }
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277
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278 if (rep.number) {
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279 if ((scrnInfo =
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280 Xmalloc(sizeof(SDL_NAME(XineramaScreenInfo)) * rep.number))) {
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281 xXineramaScreenInfo scratch;
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282 int i;
292
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283
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284 for (i = 0; i < rep.number; i++) {
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285 _XRead(dpy, (char *) (&scratch), sz_XineramaScreenInfo);
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286 scrnInfo[i].screen_number = i;
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287 scrnInfo[i].x_org = scratch.x_org;
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288 scrnInfo[i].y_org = scratch.y_org;
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289 scrnInfo[i].width = scratch.width;
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290 scrnInfo[i].height = scratch.height;
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291 }
292
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292
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293 *number = rep.number;
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294 } else
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295 _XEatData(dpy, rep.length << 2);
292
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296 }
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297
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298 UnlockDisplay(dpy);
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299 SyncHandle();
292
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300 return scrnInfo;
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301 }
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302
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303 /* vi: set ts=4 sw=4 expandtab: */