| 1 | /* |
| 2 | * Copyright (c) 2006, Oracle and/or its affiliates. All rights reserved. |
| 3 | * Copyright 2010 Red Hat, Inc. |
| 4 | * |
| 5 | * Permission is hereby granted, free of charge, to any person obtaining a |
| 6 | * copy of this software and associated documentation files (the "Software"), |
| 7 | * to deal in the Software without restriction, including without limitation |
| 8 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| 9 | * and/or sell copies of the Software, and to permit persons to whom the |
| 10 | * Software is furnished to do so, subject to the following conditions: |
| 11 | * |
| 12 | * The above copyright notice and this permission notice (including the next |
| 13 | * paragraph) shall be included in all copies or substantial portions of the |
| 14 | * Software. |
| 15 | * |
| 16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| 19 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 20 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
| 21 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER |
| 22 | * DEALINGS IN THE SOFTWARE. |
| 23 | * |
| 24 | * Copyright © 2002 Keith Packard |
| 25 | * |
| 26 | * Permission to use, copy, modify, distribute, and sell this software and its |
| 27 | * documentation for any purpose is hereby granted without fee, provided that |
| 28 | * the above copyright notice appear in all copies and that both that |
| 29 | * copyright notice and this permission notice appear in supporting |
| 30 | * documentation, and that the name of Keith Packard not be used in |
| 31 | * advertising or publicity pertaining to distribution of the software without |
| 32 | * specific, written prior permission. Keith Packard makes no |
| 33 | * representations about the suitability of this software for any purpose. It |
| 34 | * is provided "as is" without express or implied warranty. |
| 35 | * |
| 36 | * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, |
| 37 | * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO |
| 38 | * EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR |
| 39 | * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, |
| 40 | * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER |
| 41 | * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR |
| 42 | * PERFORMANCE OF THIS SOFTWARE. |
| 43 | */ |
| 44 | |
| 45 | #ifdef HAVE_DIX_CONFIG_H |
| 46 | #include <dix-config.h> |
| 47 | #endif |
| 48 | |
| 49 | #include "xfixesint.h" |
| 50 | #include "protocol-versions.h" |
| 51 | #include "extinit.h" |
| 52 | |
| 53 | static unsigned char XFixesReqCode; |
| 54 | int XFixesEventBase; |
| 55 | int XFixesErrorBase; |
| 56 | |
| 57 | static DevPrivateKeyRec XFixesClientPrivateKeyRec; |
| 58 | |
| 59 | #define XFixesClientPrivateKey (&XFixesClientPrivateKeyRec) |
| 60 | |
| 61 | static int |
| 62 | ProcXFixesQueryVersion(ClientPtr client) |
| 63 | { |
| 64 | XFixesClientPtr pXFixesClient = GetXFixesClient(client); |
| 65 | xXFixesQueryVersionReply rep = { |
| 66 | .type = X_Reply, |
| 67 | .sequenceNumber = client->sequence, |
| 68 | .length = 0 |
| 69 | }; |
| 70 | |
| 71 | REQUEST(xXFixesQueryVersionReq); |
| 72 | |
| 73 | REQUEST_SIZE_MATCH(xXFixesQueryVersionReq); |
| 74 | |
| 75 | if (version_compare(stuff->majorVersion, stuff->minorVersion, |
| 76 | SERVER_XFIXES_MAJOR_VERSION, |
| 77 | SERVER_XFIXES_MINOR_VERSION) < 0) { |
| 78 | rep.majorVersion = stuff->majorVersion; |
| 79 | rep.minorVersion = stuff->minorVersion; |
| 80 | } |
| 81 | else { |
| 82 | rep.majorVersion = SERVER_XFIXES_MAJOR_VERSION; |
| 83 | rep.minorVersion = SERVER_XFIXES_MINOR_VERSION; |
| 84 | } |
| 85 | |
| 86 | pXFixesClient->major_version = rep.majorVersion; |
| 87 | pXFixesClient->minor_version = rep.minorVersion; |
| 88 | if (client->swapped) { |
| 89 | swaps(&rep.sequenceNumber); |
| 90 | swapl(&rep.length); |
| 91 | swapl(&rep.majorVersion); |
| 92 | swapl(&rep.minorVersion); |
| 93 | } |
| 94 | WriteToClient(client, sizeof(xXFixesQueryVersionReply), &rep); |
| 95 | return Success; |
| 96 | } |
| 97 | |
| 98 | /* Major version controls available requests */ |
| 99 | static const int version_requests[] = { |
| 100 | X_XFixesQueryVersion, /* before client sends QueryVersion */ |
| 101 | X_XFixesGetCursorImage, /* Version 1 */ |
| 102 | X_XFixesChangeCursorByName, /* Version 2 */ |
| 103 | X_XFixesExpandRegion, /* Version 3 */ |
| 104 | X_XFixesShowCursor, /* Version 4 */ |
| 105 | X_XFixesDestroyPointerBarrier, /* Version 5 */ |
| 106 | }; |
| 107 | |
| 108 | #define NUM_VERSION_REQUESTS (sizeof (version_requests) / sizeof (version_requests[0])) |
| 109 | |
| 110 | int (*ProcXFixesVector[XFixesNumberRequests]) (ClientPtr) = { |
| 111 | /*************** Version 1 ******************/ |
| 112 | ProcXFixesQueryVersion, |
| 113 | ProcXFixesChangeSaveSet, |
| 114 | ProcXFixesSelectSelectionInput, |
| 115 | ProcXFixesSelectCursorInput, ProcXFixesGetCursorImage, |
| 116 | /*************** Version 2 ******************/ |
| 117 | ProcXFixesCreateRegion, |
| 118 | ProcXFixesCreateRegionFromBitmap, |
| 119 | ProcXFixesCreateRegionFromWindow, |
| 120 | ProcXFixesCreateRegionFromGC, |
| 121 | ProcXFixesCreateRegionFromPicture, |
| 122 | ProcXFixesDestroyRegion, |
| 123 | ProcXFixesSetRegion, |
| 124 | ProcXFixesCopyRegion, |
| 125 | ProcXFixesCombineRegion, |
| 126 | ProcXFixesCombineRegion, |
| 127 | ProcXFixesCombineRegion, |
| 128 | ProcXFixesInvertRegion, |
| 129 | ProcXFixesTranslateRegion, |
| 130 | ProcXFixesRegionExtents, |
| 131 | ProcXFixesFetchRegion, |
| 132 | ProcXFixesSetGCClipRegion, |
| 133 | ProcXFixesSetWindowShapeRegion, |
| 134 | ProcXFixesSetPictureClipRegion, |
| 135 | ProcXFixesSetCursorName, |
| 136 | ProcXFixesGetCursorName, |
| 137 | ProcXFixesGetCursorImageAndName, |
| 138 | ProcXFixesChangeCursor, ProcXFixesChangeCursorByName, |
| 139 | /*************** Version 3 ******************/ |
| 140 | ProcXFixesExpandRegion, |
| 141 | /*************** Version 4 ****************/ |
| 142 | ProcXFixesHideCursor, ProcXFixesShowCursor, |
| 143 | /*************** Version 5 ****************/ |
| 144 | ProcXFixesCreatePointerBarrier, ProcXFixesDestroyPointerBarrier,}; |
| 145 | |
| 146 | static int |
| 147 | ProcXFixesDispatch(ClientPtr client) |
| 148 | { |
| 149 | REQUEST(xXFixesReq); |
| 150 | XFixesClientPtr pXFixesClient = GetXFixesClient(client); |
| 151 | |
| 152 | if (pXFixesClient->major_version >= NUM_VERSION_REQUESTS) |
| 153 | return BadRequest; |
| 154 | if (stuff->xfixesReqType > version_requests[pXFixesClient->major_version]) |
| 155 | return BadRequest; |
| 156 | return (*ProcXFixesVector[stuff->xfixesReqType]) (client); |
| 157 | } |
| 158 | |
| 159 | static int |
| 160 | SProcXFixesQueryVersion(ClientPtr client) |
| 161 | { |
| 162 | REQUEST(xXFixesQueryVersionReq); |
| 163 | |
| 164 | swaps(&stuff->length); |
| 165 | swapl(&stuff->majorVersion); |
| 166 | swapl(&stuff->minorVersion); |
| 167 | return (*ProcXFixesVector[stuff->xfixesReqType]) (client); |
| 168 | } |
| 169 | |
| 170 | static int (*SProcXFixesVector[XFixesNumberRequests]) (ClientPtr) = { |
| 171 | /*************** Version 1 ******************/ |
| 172 | SProcXFixesQueryVersion, |
| 173 | SProcXFixesChangeSaveSet, |
| 174 | SProcXFixesSelectSelectionInput, |
| 175 | SProcXFixesSelectCursorInput, SProcXFixesGetCursorImage, |
| 176 | /*************** Version 2 ******************/ |
| 177 | SProcXFixesCreateRegion, |
| 178 | SProcXFixesCreateRegionFromBitmap, |
| 179 | SProcXFixesCreateRegionFromWindow, |
| 180 | SProcXFixesCreateRegionFromGC, |
| 181 | SProcXFixesCreateRegionFromPicture, |
| 182 | SProcXFixesDestroyRegion, |
| 183 | SProcXFixesSetRegion, |
| 184 | SProcXFixesCopyRegion, |
| 185 | SProcXFixesCombineRegion, |
| 186 | SProcXFixesCombineRegion, |
| 187 | SProcXFixesCombineRegion, |
| 188 | SProcXFixesInvertRegion, |
| 189 | SProcXFixesTranslateRegion, |
| 190 | SProcXFixesRegionExtents, |
| 191 | SProcXFixesFetchRegion, |
| 192 | SProcXFixesSetGCClipRegion, |
| 193 | SProcXFixesSetWindowShapeRegion, |
| 194 | SProcXFixesSetPictureClipRegion, |
| 195 | SProcXFixesSetCursorName, |
| 196 | SProcXFixesGetCursorName, |
| 197 | SProcXFixesGetCursorImageAndName, |
| 198 | SProcXFixesChangeCursor, SProcXFixesChangeCursorByName, |
| 199 | /*************** Version 3 ******************/ |
| 200 | SProcXFixesExpandRegion, |
| 201 | /*************** Version 4 ****************/ |
| 202 | SProcXFixesHideCursor, SProcXFixesShowCursor, |
| 203 | /*************** Version 5 ****************/ |
| 204 | SProcXFixesCreatePointerBarrier, SProcXFixesDestroyPointerBarrier,}; |
| 205 | |
| 206 | static int |
| 207 | SProcXFixesDispatch(ClientPtr client) |
| 208 | { |
| 209 | REQUEST(xXFixesReq); |
| 210 | if (stuff->xfixesReqType >= XFixesNumberRequests) |
| 211 | return BadRequest; |
| 212 | return (*SProcXFixesVector[stuff->xfixesReqType]) (client); |
| 213 | } |
| 214 | |
| 215 | static void |
| 216 | XFixesClientCallback(CallbackListPtr *list, pointer closure, pointer data) |
| 217 | { |
| 218 | NewClientInfoRec *clientinfo = (NewClientInfoRec *) data; |
| 219 | ClientPtr pClient = clientinfo->client; |
| 220 | XFixesClientPtr pXFixesClient = GetXFixesClient(pClient); |
| 221 | |
| 222 | pXFixesClient->major_version = 0; |
| 223 | pXFixesClient->minor_version = 0; |
| 224 | } |
| 225 | |
| 226 | /*ARGSUSED*/ static void |
| 227 | XFixesResetProc(ExtensionEntry * extEntry) |
| 228 | { |
| 229 | DeleteCallback(&ClientStateCallback, XFixesClientCallback, 0); |
| 230 | } |
| 231 | |
| 232 | void |
| 233 | XFixesExtensionInit(void) |
| 234 | { |
| 235 | ExtensionEntry *extEntry; |
| 236 | |
| 237 | if (!dixRegisterPrivateKey |
| 238 | (&XFixesClientPrivateKeyRec, PRIVATE_CLIENT, sizeof(XFixesClientRec))) |
| 239 | return; |
| 240 | if (!AddCallback(&ClientStateCallback, XFixesClientCallback, 0)) |
| 241 | return; |
| 242 | |
| 243 | if (XFixesSelectionInit() && XFixesCursorInit() && XFixesRegionInit() && |
| 244 | (extEntry = AddExtension(XFIXES_NAME, XFixesNumberEvents, |
| 245 | XFixesNumberErrors, |
| 246 | ProcXFixesDispatch, SProcXFixesDispatch, |
| 247 | XFixesResetProc, StandardMinorOpcode)) != 0) { |
| 248 | XFixesReqCode = (unsigned char) extEntry->base; |
| 249 | XFixesEventBase = extEntry->eventBase; |
| 250 | XFixesErrorBase = extEntry->errorBase; |
| 251 | EventSwapVector[XFixesEventBase + XFixesSelectionNotify] = |
| 252 | (EventSwapPtr) SXFixesSelectionNotifyEvent; |
| 253 | EventSwapVector[XFixesEventBase + XFixesCursorNotify] = |
| 254 | (EventSwapPtr) SXFixesCursorNotifyEvent; |
| 255 | SetResourceTypeErrorValue(RegionResType, XFixesErrorBase + BadRegion); |
| 256 | SetResourceTypeErrorValue(PointerBarrierType, |
| 257 | XFixesErrorBase + BadBarrier); |
| 258 | } |
| 259 | } |
| 260 | |
| 261 | #ifdef PANORAMIX |
| 262 | |
| 263 | int (*PanoramiXSaveXFixesVector[XFixesNumberRequests]) (ClientPtr); |
| 264 | |
| 265 | void |
| 266 | PanoramiXFixesInit(void) |
| 267 | { |
| 268 | int i; |
| 269 | |
| 270 | for (i = 0; i < XFixesNumberRequests; i++) |
| 271 | PanoramiXSaveXFixesVector[i] = ProcXFixesVector[i]; |
| 272 | /* |
| 273 | * Stuff in Xinerama aware request processing hooks |
| 274 | */ |
| 275 | ProcXFixesVector[X_XFixesSetGCClipRegion] = PanoramiXFixesSetGCClipRegion; |
| 276 | ProcXFixesVector[X_XFixesSetWindowShapeRegion] = |
| 277 | PanoramiXFixesSetWindowShapeRegion; |
| 278 | ProcXFixesVector[X_XFixesSetPictureClipRegion] = |
| 279 | PanoramiXFixesSetPictureClipRegion; |
| 280 | } |
| 281 | |
| 282 | void |
| 283 | PanoramiXFixesReset(void) |
| 284 | { |
| 285 | int i; |
| 286 | |
| 287 | for (i = 0; i < XFixesNumberRequests; i++) |
| 288 | ProcXFixesVector[i] = PanoramiXSaveXFixesVector[i]; |
| 289 | } |
| 290 | |
| 291 | #endif |