1*4882a593Smuzhiyun /*********************************************************** 2*4882a593Smuzhiyun 3*4882a593Smuzhiyun Copyright 1987, 1998 The Open Group 4*4882a593Smuzhiyun 5*4882a593Smuzhiyun Permission to use, copy, modify, distribute, and sell this software and its 6*4882a593Smuzhiyun documentation for any purpose is hereby granted without fee, provided that 7*4882a593Smuzhiyun the above copyright notice appear in all copies and that both that 8*4882a593Smuzhiyun copyright notice and this permission notice appear in supporting 9*4882a593Smuzhiyun documentation. 10*4882a593Smuzhiyun 11*4882a593Smuzhiyun The above copyright notice and this permission notice shall be included in 12*4882a593Smuzhiyun all copies or substantial portions of the Software. 13*4882a593Smuzhiyun 14*4882a593Smuzhiyun THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 15*4882a593Smuzhiyun IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 16*4882a593Smuzhiyun FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 17*4882a593Smuzhiyun OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN 18*4882a593Smuzhiyun AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 19*4882a593Smuzhiyun CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 20*4882a593Smuzhiyun 21*4882a593Smuzhiyun Except as contained in this notice, the name of The Open Group shall not be 22*4882a593Smuzhiyun used in advertising or otherwise to promote the sale, use or other dealings 23*4882a593Smuzhiyun in this Software without prior written authorization from The Open Group. 24*4882a593Smuzhiyun 25*4882a593Smuzhiyun Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts. 26*4882a593Smuzhiyun 27*4882a593Smuzhiyun All Rights Reserved 28*4882a593Smuzhiyun 29*4882a593Smuzhiyun Permission to use, copy, modify, and distribute this software and its 30*4882a593Smuzhiyun documentation for any purpose and without fee is hereby granted, 31*4882a593Smuzhiyun provided that the above copyright notice appear in all copies and that 32*4882a593Smuzhiyun both that copyright notice and this permission notice appear in 33*4882a593Smuzhiyun supporting documentation, and that the name of Digital not be 34*4882a593Smuzhiyun used in advertising or publicity pertaining to distribution of the 35*4882a593Smuzhiyun software without specific, written prior permission. 36*4882a593Smuzhiyun 37*4882a593Smuzhiyun DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING 38*4882a593Smuzhiyun ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL 39*4882a593Smuzhiyun DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR 40*4882a593Smuzhiyun ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, 41*4882a593Smuzhiyun WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, 42*4882a593Smuzhiyun ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS 43*4882a593Smuzhiyun SOFTWARE. 44*4882a593Smuzhiyun 45*4882a593Smuzhiyun ******************************************************************/ 46*4882a593Smuzhiyun 47*4882a593Smuzhiyun #ifndef EXTENSIONSTRUCT_H 48*4882a593Smuzhiyun #define EXTENSIONSTRUCT_H 49*4882a593Smuzhiyun 50*4882a593Smuzhiyun #include "dix.h" 51*4882a593Smuzhiyun #include "misc.h" 52*4882a593Smuzhiyun #include "screenint.h" 53*4882a593Smuzhiyun #include "extension.h" 54*4882a593Smuzhiyun #include "gc.h" 55*4882a593Smuzhiyun #include "privates.h" 56*4882a593Smuzhiyun 57*4882a593Smuzhiyun typedef struct _ExtensionEntry { 58*4882a593Smuzhiyun int index; 59*4882a593Smuzhiyun void (*CloseDown) ( /* called at server shutdown */ 60*4882a593Smuzhiyun struct _ExtensionEntry * /* extension */ ); 61*4882a593Smuzhiyun const char *name; /* extension name */ 62*4882a593Smuzhiyun int base; /* base request number */ 63*4882a593Smuzhiyun int eventBase; 64*4882a593Smuzhiyun int eventLast; 65*4882a593Smuzhiyun int errorBase; 66*4882a593Smuzhiyun int errorLast; 67*4882a593Smuzhiyun void *extPrivate; 68*4882a593Smuzhiyun unsigned short (*MinorOpcode) ( /* called for errors */ 69*4882a593Smuzhiyun ClientPtr /* client */ ); 70*4882a593Smuzhiyun PrivateRec *devPrivates; 71*4882a593Smuzhiyun } ExtensionEntry; 72*4882a593Smuzhiyun 73*4882a593Smuzhiyun /* 74*4882a593Smuzhiyun * The arguments may be different for extension event swapping functions. 75*4882a593Smuzhiyun * Deal with this by casting when initializing the event's EventSwapVector[] 76*4882a593Smuzhiyun * entries. 77*4882a593Smuzhiyun */ 78*4882a593Smuzhiyun typedef void (*EventSwapPtr) (xEvent *, xEvent *); 79*4882a593Smuzhiyun 80*4882a593Smuzhiyun extern _X_EXPORT EventSwapPtr EventSwapVector[128]; 81*4882a593Smuzhiyun 82*4882a593Smuzhiyun extern _X_EXPORT void 83*4882a593Smuzhiyun NotImplemented( /* FIXME: this may move to another file... */ 84*4882a593Smuzhiyun xEvent *, xEvent *) _X_NORETURN; 85*4882a593Smuzhiyun 86*4882a593Smuzhiyun extern _X_EXPORT ExtensionEntry * 87*4882a593Smuzhiyun AddExtension(const char * /*name */ , 88*4882a593Smuzhiyun int /*NumEvents */ , 89*4882a593Smuzhiyun int /*NumErrors */ , 90*4882a593Smuzhiyun int (* /*MainProc */ )(ClientPtr /*client */ ), 91*4882a593Smuzhiyun int (* /*SwappedMainProc */ )(ClientPtr /*client */ ), 92*4882a593Smuzhiyun void (* /*CloseDownProc */ )(ExtensionEntry * /*extension */ ), 93*4882a593Smuzhiyun unsigned short (* /*MinorOpcodeProc */ )(ClientPtr /*client */ ) 94*4882a593Smuzhiyun ); 95*4882a593Smuzhiyun 96*4882a593Smuzhiyun extern _X_EXPORT ExtensionEntry * 97*4882a593Smuzhiyun CheckExtension(const char *extname); 98*4882a593Smuzhiyun extern _X_EXPORT ExtensionEntry * 99*4882a593Smuzhiyun GetExtensionEntry(int major); 100*4882a593Smuzhiyun 101*4882a593Smuzhiyun #endif /* EXTENSIONSTRUCT_H */ 102