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annotate src/video/Xext/extensions/extutil.h @ 5275:7aba0406c273

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Frank Zago to sdl The following patch fixes some of the bitrot for the Nintendo DS port. The support is still basic at the moment, but it allows to run the "general" test under the current head of tree (parent: 5269:11bd1585efb5 tip). Most of the patch is mine, but I integrated a couple changes that John Magnotti posted on Feb 1st.
author Sam Lantinga <slouken@libsdl.org>
date Sat, 12 Feb 2011 11:36:56 -0800
parents c121d94672cb
children
rev   line source
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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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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 {
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50 struct _XExtDisplayInfo *next; /* keep a linked list */
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51 Display *display; /* which display this is */
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52 XExtCodes *codes; /* the extension protocol codes */
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53 XPointer data; /* extra data for extension to use */
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54 } XExtDisplayInfo;
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55
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56 typedef struct _XExtensionInfo
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57 {
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58 XExtDisplayInfo *head; /* start of list */
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59 XExtDisplayInfo *cur; /* most recently used */
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60 int ndisplays; /* number of displays */
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61 } XExtensionInfo;
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62
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63 typedef struct _XExtensionHooks
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64 {
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65 int (*create_gc) (
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66 #if NeedNestedPrototypes
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67 Display * /* display */ ,
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68 GC /* gc */ ,
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69 XExtCodes * /* codes */
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70 #endif
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71 );
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72 int (*copy_gc) (
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73 #if NeedNestedPrototypes
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74 Display * /* display */ ,
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75 GC /* gc */ ,
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76 XExtCodes * /* codes */
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77 #endif
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78 );
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79 int (*flush_gc) (
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80 #if NeedNestedPrototypes
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81 Display * /* display */ ,
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82 GC /* gc */ ,
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83 XExtCodes * /* codes */
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84 #endif
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85 );
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86 int (*free_gc) (
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87 #if NeedNestedPrototypes
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88 Display * /* display */ ,
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89 GC /* gc */ ,
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90 XExtCodes * /* codes */
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91 #endif
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92 );
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93 int (*create_font) (
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94 #if NeedNestedPrototypes
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95 Display * /* display */ ,
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96 XFontStruct * /* fs */ ,
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97 XExtCodes * /* codes */
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98 #endif
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99 );
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100 int (*free_font) (
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101 #if NeedNestedPrototypes
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102 Display * /* display */ ,
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103 XFontStruct * /* fs */ ,
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104 XExtCodes * /* codes */
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105 #endif
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106 );
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107 int (*close_display) (
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108 #if NeedNestedPrototypes
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109 Display * /* display */ ,
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110 XExtCodes * /* codes */
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111 #endif
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112 );
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113 Bool(*wire_to_event) (
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114 #if NeedNestedPrototypes
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115 Display * /* display */ ,
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116 XEvent * /* re */ ,
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117 xEvent * /* event */
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118 #endif
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119 );
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120 Status(*event_to_wire) (
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121 #if NeedNestedPrototypes
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122 Display * /* display */ ,
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123 XEvent * /* re */ ,
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124 xEvent * /* event */
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125 #endif
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126 );
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127 int (*error) (
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128 #if NeedNestedPrototypes
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129 Display * /* display */ ,
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130 xError * /* err */ ,
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131 XExtCodes * /* codes */ ,
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132 int * /* ret_code */
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133 #endif
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134 );
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135 char *(*error_string) (
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136 #if NeedNestedPrototypes
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137 Display * /* display */ ,
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138 int /* code */ ,
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139 XExtCodes * /* codes */ ,
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140 char * /* buffer */ ,
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141 int /* nbytes */
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142 #endif
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143 );
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144 } XExtensionHooks;
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145
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146 extern XExtensionInfo *XextCreateExtension(
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147 #if NeedFunctionPrototypes
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148 void
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149 #endif
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150 );
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151 extern void XextDestroyExtension(
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152 #if NeedFunctionPrototypes
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153 XExtensionInfo * /* info */
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154 #endif
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155 );
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156 extern XExtDisplayInfo *XextAddDisplay(
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157 #if NeedFunctionPrototypes
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158 XExtensionInfo * /* extinfo */ ,
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159 Display * /* dpy */ ,
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160 char * /* ext_name */ ,
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161 XExtensionHooks * /* hooks */ ,
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162 int /* nevents */ ,
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163 XPointer /* data */
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164 #endif
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165 );
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166 extern int XextRemoveDisplay(
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167 #if NeedFunctionPrototypes
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168 XExtensionInfo * /* extinfo */ ,
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169 Display * /* dpy */
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170 #endif
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171 );
292
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172 extern XExtDisplayInfo *XextFindDisplay(
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173 #if NeedFunctionPrototypes
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174 XExtensionInfo * /* extinfo */ ,
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175 Display * /* dpy */
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176 #endif
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177 );
292
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178
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179 #define XextHasExtension(i) ((i) && ((i)->codes))
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180 #define XextCheckExtension(dpy,i,name,val) \
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181 if (!XextHasExtension(i)) { XMissingExtension (dpy, name); return val; }
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182 #define XextSimpleCheckExtension(dpy,i,name) \
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183 if (!XextHasExtension(i)) { XMissingExtension (dpy, name); return; }
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184
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185
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186 /*
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187 * helper macros to generate code that is common to all extensions; caller
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188 * should prefix it with static if extension source is in one file; this
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189 * could be a utility function, but have to stack 6 unused arguments for
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190 * something that is called many, many times would be bad.
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191 */
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192 #define XEXT_GENERATE_FIND_DISPLAY(proc,extinfo,extname,hooks,nev,data) \
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193 XExtDisplayInfo *proc (Display *dpy) \
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194 { \
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195 XExtDisplayInfo *dpyinfo; \
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196 if (!extinfo) { if (!(extinfo = XextCreateExtension())) return NULL; } \
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197 if (!(dpyinfo = XextFindDisplay (extinfo, dpy))) \
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198 dpyinfo = XextAddDisplay (extinfo,dpy,extname,hooks,nev,data); \
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199 return dpyinfo; \
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200 }
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201
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202 #define XEXT_FIND_DISPLAY_PROTO(proc) \
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203 XExtDisplayInfo *proc(Display *dpy)
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204
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205 #define XEXT_GENERATE_CLOSE_DISPLAY(proc,extinfo) \
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206 int proc (Display *dpy, XExtCodes *codes) \
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207 { \
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208 return XextRemoveDisplay (extinfo, dpy); \
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209 }
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210
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211 #define XEXT_CLOSE_DISPLAY_PROTO(proc) \
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212 int proc(Display *dpy, XExtCodes *codes)
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213
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214 #define XEXT_GENERATE_ERROR_STRING(proc,extname,nerr,errl) \
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215 char *proc (Display *dpy, int code, XExtCodes *codes, char *buf, int n) \
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216 { \
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217 code -= codes->first_error; \
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218 if (code >= 0 && code < nerr) { \
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219 char tmp[256]; \
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220 SDL_snprintf (tmp, SDL_arraysize(tmp), "%s.%d", extname, code); \
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221 XGetErrorDatabaseText (dpy, "XProtoError", tmp, errl[code], buf, n); \
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222 return buf; \
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223 } \
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224 return (char *)0; \
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225 }
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226
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227 #define XEXT_ERROR_STRING_PROTO(proc) \
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228 char *proc(Display *dpy, int code, XExtCodes *codes, char *buf, int n)
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229 #endif
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230 /* vi: set ts=4 sw=4 expandtab: */