1 | /***********************************************************
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2 |
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3 | Copyright 1987, 1998 The Open Group
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4 |
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5 | Permission to use, copy, modify, distribute, and sell this software and its
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6 | documentation for any purpose is hereby granted without fee, provided that
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7 | the above copyright notice appear in all copies and that both that
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8 | copyright notice and this permission notice appear in supporting
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9 | documentation.
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10 |
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11 | The above copyright notice and this permission notice shall be included in
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12 | all copies or substantial portions of the Software.
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13 |
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14 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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15 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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16 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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17 | OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
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18 | AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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19 | 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 The Open Group shall not be
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22 | used in advertising or otherwise to promote the sale, use or other dealings
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23 | in this Software without prior written authorization from The Open Group.
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24 |
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25 |
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26 | Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.
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27 |
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28 | All Rights Reserved
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29 |
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30 | Permission to use, copy, modify, and distribute this software and its
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31 | documentation for any purpose and without fee is hereby granted,
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32 | provided that the above copyright notice appear in all copies and that
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33 | both that copyright notice and this permission notice appear in
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34 | supporting documentation, and that the name of Digital not be
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35 | used in advertising or publicity pertaining to distribution of the
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36 | software without specific, written prior permission.
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37 |
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38 | DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
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39 | ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
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40 | DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
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41 | ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
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42 | WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
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43 | ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
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44 | SOFTWARE.
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45 |
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46 | ******************************************************************/
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47 |
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48 | #ifndef EXTENSIONSTRUCT_H
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49 | #define EXTENSIONSTRUCT_H
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50 |
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51 | #include "dix.h"
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52 | #include "misc.h"
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53 | #include "screenint.h"
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54 | #include "extension.h"
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55 | #include "gc.h"
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56 |
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57 | typedef struct _ExtensionEntry {
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58 | int index;
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59 | void (* CloseDown)( /* called at server shutdown */
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60 | struct _ExtensionEntry * /* extension */);
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61 | char *name; /* extension name */
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62 | int base; /* base request number */
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63 | int eventBase;
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64 | int eventLast;
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65 | int errorBase;
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66 | int errorLast;
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67 | int num_aliases;
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68 | char **aliases;
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69 | pointer extPrivate;
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70 | unsigned short (* MinorOpcode)( /* called for errors */
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71 | ClientPtr /* client */);
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72 | DevUnion *devPrivates;
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73 | } ExtensionEntry;
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74 |
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75 | /*
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76 | * The arguments may be different for extension event swapping functions.
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77 | * Deal with this by casting when initializing the event's EventSwapVector[]
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78 | * entries.
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79 | */
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80 | typedef void (*EventSwapPtr) (xEvent *, xEvent *);
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81 |
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82 | extern EventSwapPtr EventSwapVector[128];
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83 |
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84 | extern void NotImplemented ( /* FIXME: this may move to another file... */
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85 | xEvent *,
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86 | xEvent *);
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87 |
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88 | typedef void (* ExtensionLookupProc)(
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89 | #ifdef EXTENSION_PROC_ARGS
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90 | EXTENSION_PROC_ARGS
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91 | #else
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92 | /* args no longer indeterminate */
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93 | char *name,
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94 | GCPtr pGC
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95 | #endif
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96 | );
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97 |
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98 | typedef struct _ProcEntry {
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99 | char *name;
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100 | ExtensionLookupProc proc;
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101 | } ProcEntryRec, *ProcEntryPtr;
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102 |
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103 | typedef struct _ScreenProcEntry {
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104 | int num;
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105 | ProcEntryPtr procList;
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106 | } ScreenProcEntry;
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107 |
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108 | #define SetGCVector(pGC, VectorElement, NewRoutineAddress, Atom) \
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109 | pGC->VectorElement = NewRoutineAddress;
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110 |
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111 | #define GetGCValue(pGC, GCElement) (pGC->GCElement)
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112 |
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113 |
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114 | extern ExtensionEntry *AddExtension(
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115 | char* /*name*/,
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116 | int /*NumEvents*/,
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117 | int /*NumErrors*/,
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118 | int (* /*MainProc*/)(ClientPtr /*client*/),
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119 | int (* /*SwappedMainProc*/)(ClientPtr /*client*/),
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120 | void (* /*CloseDownProc*/)(ExtensionEntry * /*extension*/),
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121 | unsigned short (* /*MinorOpcodeProc*/)(ClientPtr /*client*/)
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122 | );
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123 |
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124 | extern Bool AddExtensionAlias(
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125 | char* /*alias*/,
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126 | ExtensionEntry * /*extension*/);
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127 |
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128 | extern ExtensionEntry *CheckExtension(const char *extname);
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129 | extern ExtensionEntry *GetExtensionEntry(int major);
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130 |
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131 | extern ExtensionLookupProc LookupProc(
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132 | char* /*name*/,
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133 | GCPtr /*pGC*/);
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134 |
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135 | extern Bool RegisterProc(
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136 | char* /*name*/,
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137 | GCPtr /*pGC*/,
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138 | ExtensionLookupProc /*proc*/);
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139 |
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140 | extern Bool RegisterScreenProc(
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141 | char* /*name*/,
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142 | ScreenPtr /*pScreen*/,
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143 | ExtensionLookupProc /*proc*/);
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144 |
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145 | extern void DeclareExtensionSecurity(
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146 | char * /*extname*/,
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147 | Bool /*secure*/);
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148 |
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149 | #endif /* EXTENSIONSTRUCT_H */
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150 |
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