Mercurial > sdl-ios-xcode

annotate src/video/Xext/extensions/extutil.h @ 4249:429c8dd3175d SDL-1.2

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Fixed bug #713 Don't clamp the mouse coordinates to the video surface size, instead clamp them to the last known window size. This allows users to get the correct mouse coordinates even if they don't call SDL_SetVideoMode() in response to an SDL_VIDEORESIZE event (used as a hack to retain the OpenGL context on Windows and Linux after a window resize)
author Sam Lantinga <slouken@libsdl.org>
date Sun, 27 Sep 2009 05:18:43 +0000
parents ecba4bbaf9c2
children 782fd950bd46 c121d94672cb
rev   line source
292
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1 /*
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2 * $Xorg: extutil.h,v 1.4 2001/02/09 02:03:24 xorgcvs Exp $
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3 *
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4 Copyright 1989, 1998 The Open Group
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5
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6 Permission to use, copy, modify, distribute, and sell this software and its
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7 documentation for any purpose is hereby granted without fee, provided that
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8 the above copyright notice appear in all copies and that both that
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9 copyright notice and this permission notice appear in supporting
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10 documentation.
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11
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12 The above copyright notice and this permission notice shall be included in
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13 all copies or substantial portions of the Software.
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14
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15 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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16 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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17 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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18 OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
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19 AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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20 CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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21
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22 Except as contained in this notice, the name of The Open Group shall not be
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23 used in advertising or otherwise to promote the sale, use or other dealings
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24 in this Software without prior written authorization from The Open Group.
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25 *
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26 * Author: Jim Fulton, MIT The Open Group
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27 *
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28 * Xlib Extension-Writing Utilities
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29 *
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30 * This package contains utilities for writing the client API for various
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31 * protocol extensions. THESE INTERFACES ARE NOT PART OF THE X STANDARD AND
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32 * ARE SUBJECT TO CHANGE!
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33 */
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34 /* $XFree86: xc/include/extensions/extutil.h,v 1.9 2001/12/14 19:53:28 dawes Exp $ */
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35
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36 #ifndef _EXTUTIL_H_
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37 #define _EXTUTIL_H_
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38
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39 #include "SDL_stdinc.h" /* For portable string functions */
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40
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ecba4bbaf9c2 More dynamic X11 mangling...should fix NetBSD builds. And hopefully doesn't
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41 #include "./Xext.h"
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42
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43 /*
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44 * We need to keep a list of open displays since the Xlib display list isn't
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45 * public. We also have to per-display info in a separate block since it isn't
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46 * stored directly in the Display structure.
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47 */
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48 typedef struct _XExtDisplayInfo {
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49 struct _XExtDisplayInfo *next; /* keep a linked list */
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50 Display *display; /* which display this is */
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51 XExtCodes *codes; /* the extension protocol codes */
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52 XPointer data; /* extra data for extension to use */
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53 } XExtDisplayInfo;
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54
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55 typedef struct _XExtensionInfo {
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56 XExtDisplayInfo *head; /* start of list */
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57 XExtDisplayInfo *cur; /* most recently used */
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58 int ndisplays; /* number of displays */
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59 } XExtensionInfo;
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60
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61 typedef struct _XExtensionHooks {
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62 int (*create_gc)(
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63 #if NeedNestedPrototypes
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64 Display* /* display */,
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65 GC /* gc */,
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66 XExtCodes* /* codes */
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67 #endif
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68 );
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69 int (*copy_gc)(
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70 #if NeedNestedPrototypes
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71 Display* /* display */,
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72 GC /* gc */,
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73 XExtCodes* /* codes */
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74 #endif
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75 );
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76 int (*flush_gc)(
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77 #if NeedNestedPrototypes
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78 Display* /* display */,
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79 GC /* gc */,
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80 XExtCodes* /* codes */
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81 #endif
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82 );
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83 int (*free_gc)(
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84 #if NeedNestedPrototypes
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85 Display* /* display */,
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86 GC /* gc */,
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87 XExtCodes* /* codes */
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88 #endif
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89 );
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90 int (*create_font)(
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91 #if NeedNestedPrototypes
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92 Display* /* display */,
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93 XFontStruct* /* fs */,
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94 XExtCodes* /* codes */
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95 #endif
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96 );
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97 int (*free_font)(
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98 #if NeedNestedPrototypes
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99 Display* /* display */,
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100 XFontStruct* /* fs */,
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101 XExtCodes* /* codes */
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102 #endif
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103 );
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104 int (*close_display)(
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105 #if NeedNestedPrototypes
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106 Display* /* display */,
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107 XExtCodes* /* codes */
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108 #endif
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109 );
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110 Bool (*wire_to_event)(
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111 #if NeedNestedPrototypes
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112 Display* /* display */,
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113 XEvent* /* re */,
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114 xEvent* /* event */
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115 #endif
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116 );
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117 Status (*event_to_wire)(
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118 #if NeedNestedPrototypes
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119 Display* /* display */,
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120 XEvent* /* re */,
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121 xEvent* /* event */
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122 #endif
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123 );
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124 int (*error)(
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125 #if NeedNestedPrototypes
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126 Display* /* display */,
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127 xError* /* err */,
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128 XExtCodes* /* codes */,
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129 int* /* ret_code */
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130 #endif
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131 );
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132 char *(*error_string)(
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133 #if NeedNestedPrototypes
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134 Display* /* display */,
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135 int /* code */,
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136 XExtCodes* /* codes */,
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137 char* /* buffer */,
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138 int /* nbytes */
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139 #endif
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140 );
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141 } XExtensionHooks;
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142
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143 extern XExtensionInfo *XextCreateExtension(
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144 #if NeedFunctionPrototypes
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145 void
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146 #endif
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147 );
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148 extern void XextDestroyExtension(
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149 #if NeedFunctionPrototypes
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150 XExtensionInfo* /* info */
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151 #endif
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152 );
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153 extern XExtDisplayInfo *XextAddDisplay(
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154 #if NeedFunctionPrototypes
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155 XExtensionInfo* /* extinfo */,
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156 Display* /* dpy */,
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157 char* /* ext_name */,
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158 XExtensionHooks* /* hooks */,
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159 int /* nevents */,
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160 XPointer /* data */
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161 #endif
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162 );
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163 extern int XextRemoveDisplay(
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164 #if NeedFunctionPrototypes
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165 XExtensionInfo* /* extinfo */,
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166 Display* /* dpy */
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167 #endif
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168 );
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169 extern XExtDisplayInfo *XextFindDisplay(
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170 #if NeedFunctionPrototypes
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171 XExtensionInfo* /* extinfo */,
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172 Display* /* dpy */
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173 #endif
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174 );
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175
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176 #define XextHasExtension(i) ((i) && ((i)->codes))
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177 #define XextCheckExtension(dpy,i,name,val) \
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178 if (!XextHasExtension(i)) { XMissingExtension (dpy, name); return val; }
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179 #define XextSimpleCheckExtension(dpy,i,name) \
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180 if (!XextHasExtension(i)) { XMissingExtension (dpy, name); return; }
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181
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182
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183 /*
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184 * helper macros to generate code that is common to all extensions; caller
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185 * should prefix it with static if extension source is in one file; this
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186 * could be a utility function, but have to stack 6 unused arguments for
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187 * something that is called many, many times would be bad.
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188 */
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189 #define XEXT_GENERATE_FIND_DISPLAY(proc,extinfo,extname,hooks,nev,data) \
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190 XExtDisplayInfo *proc (Display *dpy) \
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191 { \
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192 XExtDisplayInfo *dpyinfo; \
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193 if (!extinfo) { if (!(extinfo = XextCreateExtension())) return NULL; } \
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194 if (!(dpyinfo = XextFindDisplay (extinfo, dpy))) \
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195 dpyinfo = XextAddDisplay (extinfo,dpy,extname,hooks,nev,data); \
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196 return dpyinfo; \
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197 }
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198
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199 #define XEXT_FIND_DISPLAY_PROTO(proc) \
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200 XExtDisplayInfo *proc(Display *dpy)
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201
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202 #define XEXT_GENERATE_CLOSE_DISPLAY(proc,extinfo) \
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203 int proc (Display *dpy, XExtCodes *codes) \
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204 { \
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205 return XextRemoveDisplay (extinfo, dpy); \
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206 }
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207
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208 #define XEXT_CLOSE_DISPLAY_PROTO(proc) \
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209 int proc(Display *dpy, XExtCodes *codes)
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210
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211 #define XEXT_GENERATE_ERROR_STRING(proc,extname,nerr,errl) \
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212 char *proc (Display *dpy, int code, XExtCodes *codes, char *buf, int n) \
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213 { \
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214 code -= codes->first_error; \
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215 if (code >= 0 && code < nerr) { \
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216 char tmp[256]; \
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217 SDL_snprintf (tmp, SDL_arraysize(tmp), "%s.%d", extname, code); \
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218 XGetErrorDatabaseText (dpy, "XProtoError", tmp, errl[code], buf, n); \
292
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219 return buf; \
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220 } \
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221 return (char *)0; \
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222 }
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223
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224 #define XEXT_ERROR_STRING_PROTO(proc) \
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225 char *proc(Display *dpy, int code, XExtCodes *codes, char *buf, int n)
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226 #endif