| 1 | /*********************************************************** |
| 2 | |
| 3 | Copyright 1987, 1998 The Open Group |
| 4 | |
| 5 | Permission to use, copy, modify, distribute, and sell this software and its |
| 6 | documentation for any purpose is hereby granted without fee, provided that |
| 7 | the above copyright notice appear in all copies and that both that |
| 8 | copyright notice and this permission notice appear in supporting |
| 9 | documentation. |
| 10 | |
| 11 | The above copyright notice and this permission notice shall be included in |
| 12 | all copies or substantial portions of the Software. |
| 13 | |
| 14 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 15 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 16 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| 17 | OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN |
| 18 | AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
| 19 | CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
| 20 | |
| 21 | Except as contained in this notice, the name of The Open Group shall not be |
| 22 | used in advertising or otherwise to promote the sale, use or other dealings |
| 23 | in this Software without prior written authorization from The Open Group. |
| 24 | |
| 25 | Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts. |
| 26 | |
| 27 | All Rights Reserved |
| 28 | |
| 29 | Permission to use, copy, modify, and distribute this software and its |
| 30 | documentation for any purpose and without fee is hereby granted, |
| 31 | provided that the above copyright notice appear in all copies and that |
| 32 | both that copyright notice and this permission notice appear in |
| 33 | supporting documentation, and that the name of Digital not be |
| 34 | used in advertising or publicity pertaining to distribution of the |
| 35 | software without specific, written prior permission. |
| 36 | |
| 37 | DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING |
| 38 | ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL |
| 39 | DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR |
| 40 | ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, |
| 41 | WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, |
| 42 | ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS |
| 43 | SOFTWARE. |
| 44 | |
| 45 | ******************************************************************/ |
| 46 | |
| 47 | #ifndef EXTENSIONSTRUCT_H |
| 48 | #define EXTENSIONSTRUCT_H |
| 49 | |
| 50 | #include "dix.h" |
| 51 | #include "misc.h" |
| 52 | #include "screenint.h" |
| 53 | #include "extension.h" |
| 54 | #include "gc.h" |
| 55 | #include "privates.h" |
| 56 | |
| 57 | typedef struct _ExtensionEntry { |
| 58 | int index; |
| 59 | void (*CloseDown) ( /* called at server shutdown */ |
| 60 | struct _ExtensionEntry * /* extension */ ); |
| 61 | char *name; /* extension name */ |
| 62 | int base; /* base request number */ |
| 63 | int eventBase; |
| 64 | int eventLast; |
| 65 | int errorBase; |
| 66 | int errorLast; |
| 67 | int num_aliases; |
| 68 | char **aliases; |
| 69 | pointer extPrivate; |
| 70 | unsigned short (*MinorOpcode) ( /* called for errors */ |
| 71 | ClientPtr /* client */ ); |
| 72 | PrivateRec *devPrivates; |
| 73 | } ExtensionEntry; |
| 74 | |
| 75 | /* |
| 76 | * The arguments may be different for extension event swapping functions. |
| 77 | * Deal with this by casting when initializing the event's EventSwapVector[] |
| 78 | * entries. |
| 79 | */ |
| 80 | typedef void (*EventSwapPtr) (xEvent *, xEvent *); |
| 81 | |
| 82 | extern _X_EXPORT EventSwapPtr EventSwapVector[128]; |
| 83 | |
| 84 | extern _X_EXPORT void |
| 85 | NotImplemented( /* FIXME: this may move to another file... */ |
| 86 | xEvent *, xEvent *) _X_NORETURN; |
| 87 | |
| 88 | #define SetGCVector(pGC, VectorElement, NewRoutineAddress, Atom) \ |
| 89 | pGC->VectorElement = NewRoutineAddress; |
| 90 | |
| 91 | #define GetGCValue(pGC, GCElement) (pGC->GCElement) |
| 92 | |
| 93 | extern _X_EXPORT ExtensionEntry * |
| 94 | AddExtension(const char * /*name */ , |
| 95 | int /*NumEvents */ , |
| 96 | int /*NumErrors */ , |
| 97 | int (* /*MainProc */ )(ClientPtr /*client */ ), |
| 98 | int (* /*SwappedMainProc */ )(ClientPtr /*client */ ), |
| 99 | void (* /*CloseDownProc */ )(ExtensionEntry * /*extension */ ), |
| 100 | unsigned short (* /*MinorOpcodeProc */ )(ClientPtr /*client */ ) |
| 101 | ); |
| 102 | |
| 103 | extern _X_EXPORT Bool |
| 104 | AddExtensionAlias(const char * /*alias */ , |
| 105 | ExtensionEntry * /*extension */ ); |
| 106 | |
| 107 | extern _X_EXPORT ExtensionEntry * |
| 108 | CheckExtension(const char *extname); |
| 109 | extern _X_EXPORT ExtensionEntry * |
| 110 | GetExtensionEntry(int major); |
| 111 | |
| 112 | #endif /* EXTENSIONSTRUCT_H */ |