| 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 | Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.
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| 26 |
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| 27 | All Rights Reserved
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| 28 |
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| 29 | Permission to use, copy, modify, and distribute this software and its
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| 30 | documentation for any purpose and without fee is hereby granted,
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| 31 | provided that the above copyright notice appear in all copies and that
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| 32 | both that copyright notice and this permission notice appear in
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| 33 | supporting documentation, and that the name of Digital not be
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| 34 | used in advertising or publicity pertaining to distribution of the
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| 35 | software without specific, written prior permission.
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| 36 |
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| 37 | DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
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| 38 | ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
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| 39 | DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
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| 40 | ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
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| 41 | WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
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| 42 | ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
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| 43 | SOFTWARE.
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| 44 |
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| 45 | ******************************************************************/
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| 46 |
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| 47 | #ifndef EXTENSIONSTRUCT_H
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| 48 | #define EXTENSIONSTRUCT_H
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| 49 |
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| 50 | #include "dix.h"
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| 51 | #include "misc.h"
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| 52 | #include "screenint.h"
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| 53 | #include "extension.h"
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| 54 | #include "gc.h"
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| 55 | #include "privates.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 | const 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 | const char **aliases;
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| 69 | void *extPrivate;
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| 70 | unsigned short (*MinorOpcode) ( /* called for errors */
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| 71 | ClientPtr /* client */ );
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| 72 | PrivateRec *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 _X_EXPORT EventSwapPtr EventSwapVector[128];
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| 83 |
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| 84 | extern _X_EXPORT void
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| 85 | NotImplemented( /* FIXME: this may move to another file... */
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| 86 | xEvent *, xEvent *) _X_NORETURN;
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| 87 |
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| 88 | #define SetGCVector(pGC, VectorElement, NewRoutineAddress, Atom) \
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| 89 | pGC->VectorElement = NewRoutineAddress;
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| 90 |
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| 91 | #define GetGCValue(pGC, GCElement) (pGC->GCElement)
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| 92 |
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| 93 | extern _X_EXPORT ExtensionEntry *
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| 94 | AddExtension(const char * /*name */ ,
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| 95 | int /*NumEvents */ ,
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| 96 | int /*NumErrors */ ,
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| 97 | int (* /*MainProc */ )(ClientPtr /*client */ ),
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| 98 | int (* /*SwappedMainProc */ )(ClientPtr /*client */ ),
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| 99 | void (* /*CloseDownProc */ )(ExtensionEntry * /*extension */ ),
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| 100 | unsigned short (* /*MinorOpcodeProc */ )(ClientPtr /*client */ )
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| 101 | );
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| 102 |
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| 103 | extern _X_EXPORT Bool
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| 104 | AddExtensionAlias(const char * /*alias */ ,
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| 105 | ExtensionEntry * /*extension */ );
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| 106 |
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| 107 | extern _X_EXPORT ExtensionEntry *
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| 108 | CheckExtension(const char *extname);
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| 109 | extern _X_EXPORT ExtensionEntry *
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| 110 | GetExtensionEntry(int major);
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| 111 |
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| 112 | #endif /* EXTENSIONSTRUCT_H */
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