| 1 | /* |
| 2 | * Copyright © 2013 Keith Packard |
| 3 | * |
| 4 | * Permission to use, copy, modify, distribute, and sell this software and its |
| 5 | * documentation for any purpose is hereby granted without fee, provided that |
| 6 | * the above copyright notice appear in all copies and that both that copyright |
| 7 | * notice and this permission notice appear in supporting documentation, and |
| 8 | * that the name of the copyright holders not be used in advertising or |
| 9 | * publicity pertaining to distribution of the software without specific, |
| 10 | * written prior permission. The copyright holders make no representations |
| 11 | * about the suitability of this software for any purpose. It is provided "as |
| 12 | * is" without express or implied warranty. |
| 13 | * |
| 14 | * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, |
| 15 | * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO |
| 16 | * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR |
| 17 | * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, |
| 18 | * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER |
| 19 | * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE |
| 20 | * OF THIS SOFTWARE. |
| 21 | */ |
| 22 | |
| 23 | #ifdef HAVE_XORG_CONFIG_H |
| 24 | #include <xorg-config.h> |
| 25 | #endif |
| 26 | |
| 27 | #include "present_priv.h" |
| 28 | #include "randrstr.h" |
| 29 | #include <protocol-versions.h> |
| 30 | |
| 31 | static int |
| 32 | proc_present_query_version(ClientPtr client) |
| 33 | { |
| 34 | REQUEST(xPresentQueryVersionReq); |
| 35 | xPresentQueryVersionReply rep = { |
| 36 | .type = X_Reply, |
| 37 | .sequenceNumber = client->sequence, |
| 38 | .length = 0, |
| 39 | .majorVersion = SERVER_PRESENT_MAJOR_VERSION, |
| 40 | .minorVersion = SERVER_PRESENT_MINOR_VERSION |
| 41 | }; |
| 42 | |
| 43 | REQUEST_SIZE_MATCH(xPresentQueryVersionReq); |
| 44 | (void) stuff; |
| 45 | if (client->swapped) { |
| 46 | swaps(&rep.sequenceNumber); |
| 47 | swapl(&rep.length); |
| 48 | swapl(&rep.majorVersion); |
| 49 | swapl(&rep.minorVersion); |
| 50 | } |
| 51 | WriteToClient(client, sizeof(rep), &rep); |
| 52 | return Success; |
| 53 | } |
| 54 | |
| 55 | #define VERIFY_FENCE_OR_NONE(fence_ptr, fence_id, client, access) do { \ |
| 56 | if ((fence_id) == None) \ |
| 57 | (fence_ptr) = NULL; \ |
| 58 | else { \ |
| 59 | int __rc__ = SyncVerifyFence(&fence_ptr, fence_id, client, access); \ |
| 60 | if (__rc__ != Success) \ |
| 61 | return __rc__; \ |
| 62 | } \ |
| 63 | } while (0) |
| 64 | |
| 65 | #define VERIFY_CRTC_OR_NONE(crtc_ptr, crtc_id, client, access) do { \ |
| 66 | if ((crtc_id) == None) \ |
| 67 | (crtc_ptr) = NULL; \ |
| 68 | else { \ |
| 69 | VERIFY_RR_CRTC(crtc_id, crtc_ptr, access); \ |
| 70 | } \ |
| 71 | } while (0) |
| 72 | |
| 73 | static int |
| 74 | proc_present_pixmap(ClientPtr client) |
| 75 | { |
| 76 | REQUEST(xPresentPixmapReq); |
| 77 | WindowPtr window; |
| 78 | PixmapPtr pixmap; |
| 79 | RegionPtr valid = NULL; |
| 80 | RegionPtr update = NULL; |
| 81 | SyncFence *wait_fence; |
| 82 | SyncFence *idle_fence; |
| 83 | RRCrtcPtr target_crtc; |
| 84 | int ret; |
| 85 | int nnotifies; |
| 86 | present_notify_ptr notifies = NULL; |
| 87 | |
| 88 | REQUEST_AT_LEAST_SIZE(xPresentPixmapReq); |
| 89 | ret = dixLookupWindow(&window, stuff->window, client, DixWriteAccess); |
| 90 | if (ret != Success) |
| 91 | return ret; |
| 92 | ret = dixLookupResourceByType((pointer *) &pixmap, stuff->pixmap, RT_PIXMAP, client, DixReadAccess); |
| 93 | if (ret != Success) |
| 94 | return ret; |
| 95 | |
| 96 | if (window->drawable.depth != pixmap->drawable.depth) |
| 97 | return BadMatch; |
| 98 | |
| 99 | VERIFY_REGION_OR_NONE(valid, stuff->valid, client, DixReadAccess); |
| 100 | VERIFY_REGION_OR_NONE(update, stuff->update, client, DixReadAccess); |
| 101 | |
| 102 | VERIFY_CRTC_OR_NONE(target_crtc, stuff->target_crtc, client, DixReadAccess); |
| 103 | |
| 104 | VERIFY_FENCE_OR_NONE(wait_fence, stuff->wait_fence, client, DixReadAccess); |
| 105 | VERIFY_FENCE_OR_NONE(idle_fence, stuff->idle_fence, client, DixWriteAccess); |
| 106 | |
| 107 | if (stuff->options & ~(PresentAllOptions)) { |
| 108 | client->errorValue = stuff->options; |
| 109 | return BadValue; |
| 110 | } |
| 111 | |
| 112 | /* |
| 113 | * Check to see if remainder is sane |
| 114 | */ |
| 115 | if (stuff->divisor == 0) { |
| 116 | if (stuff->remainder != 0) { |
| 117 | client->errorValue = (CARD32) stuff->remainder; |
| 118 | return BadValue; |
| 119 | } |
| 120 | } else { |
| 121 | if (stuff->remainder >= stuff->divisor) { |
| 122 | client->errorValue = (CARD32) stuff->remainder; |
| 123 | return BadValue; |
| 124 | } |
| 125 | } |
| 126 | |
| 127 | nnotifies = (client->req_len << 2) - sizeof (xPresentPixmapReq); |
| 128 | if (nnotifies % sizeof (xPresentNotify)) |
| 129 | return BadLength; |
| 130 | |
| 131 | nnotifies /= sizeof (xPresentNotify); |
| 132 | if (nnotifies) { |
| 133 | ret = present_create_notifies(client, nnotifies, (xPresentNotify *) (stuff + 1), ¬ifies); |
| 134 | if (ret != Success) |
| 135 | return ret; |
| 136 | } |
| 137 | |
| 138 | ret = present_pixmap(window, pixmap, stuff->serial, valid, update, |
| 139 | stuff->x_off, stuff->y_off, target_crtc, |
| 140 | wait_fence, idle_fence, stuff->options, |
| 141 | stuff->target_msc, stuff->divisor, stuff->remainder, notifies, nnotifies); |
| 142 | if (ret != Success) |
| 143 | present_destroy_notifies(notifies, nnotifies); |
| 144 | return ret; |
| 145 | } |
| 146 | |
| 147 | static int |
| 148 | proc_present_notify_msc(ClientPtr client) |
| 149 | { |
| 150 | REQUEST(xPresentNotifyMSCReq); |
| 151 | WindowPtr window; |
| 152 | int rc; |
| 153 | |
| 154 | REQUEST_SIZE_MATCH(xPresentNotifyMSCReq); |
| 155 | rc = dixLookupWindow(&window, stuff->window, client, DixReadAccess); |
| 156 | if (rc != Success) |
| 157 | return rc; |
| 158 | |
| 159 | /* |
| 160 | * Check to see if remainder is sane |
| 161 | */ |
| 162 | if (stuff->divisor == 0) { |
| 163 | if (stuff->remainder != 0) { |
| 164 | client->errorValue = (CARD32) stuff->remainder; |
| 165 | return BadValue; |
| 166 | } |
| 167 | } else { |
| 168 | if (stuff->remainder >= stuff->divisor) { |
| 169 | client->errorValue = (CARD32) stuff->remainder; |
| 170 | return BadValue; |
| 171 | } |
| 172 | } |
| 173 | |
| 174 | return present_notify_msc(window, stuff->serial, |
| 175 | stuff->target_msc, stuff->divisor, stuff->remainder); |
| 176 | } |
| 177 | |
| 178 | static int |
| 179 | proc_present_select_input (ClientPtr client) |
| 180 | { |
| 181 | REQUEST(xPresentSelectInputReq); |
| 182 | WindowPtr window; |
| 183 | int rc; |
| 184 | |
| 185 | REQUEST_SIZE_MATCH(xPresentSelectInputReq); |
| 186 | |
| 187 | LEGAL_NEW_RESOURCE(stuff->eid, client); |
| 188 | |
| 189 | rc = dixLookupWindow(&window, stuff->window, client, DixGetAttrAccess); |
| 190 | if (rc != Success) |
| 191 | return rc; |
| 192 | |
| 193 | if (stuff->eventMask & ~PresentAllEvents) { |
| 194 | client->errorValue = stuff->eventMask; |
| 195 | return BadValue; |
| 196 | } |
| 197 | return present_select_input(client, stuff->eid, window, stuff->eventMask); |
| 198 | } |
| 199 | |
| 200 | static int |
| 201 | proc_present_query_capabilities (ClientPtr client) |
| 202 | { |
| 203 | REQUEST(xPresentQueryCapabilitiesReq); |
| 204 | xPresentQueryCapabilitiesReply rep = { |
| 205 | .type = X_Reply, |
| 206 | .sequenceNumber = client->sequence, |
| 207 | .length = 0, |
| 208 | }; |
| 209 | WindowPtr window; |
| 210 | RRCrtcPtr crtc = NULL; |
| 211 | int r; |
| 212 | |
| 213 | r = dixLookupWindow(&window, stuff->target, client, DixGetAttrAccess); |
| 214 | switch (r) { |
| 215 | case Success: |
| 216 | crtc = present_get_crtc(window); |
| 217 | break; |
| 218 | case BadWindow: |
| 219 | VERIFY_RR_CRTC(stuff->target, crtc, DixGetAttrAccess); |
| 220 | break; |
| 221 | default: |
| 222 | return r; |
| 223 | } |
| 224 | |
| 225 | rep.capabilities = present_query_capabilities(crtc); |
| 226 | |
| 227 | if (client->swapped) { |
| 228 | swaps(&rep.sequenceNumber); |
| 229 | swapl(&rep.length); |
| 230 | swapl(&rep.capabilities); |
| 231 | } |
| 232 | WriteToClient(client, sizeof(rep), &rep); |
| 233 | return Success; |
| 234 | } |
| 235 | |
| 236 | int (*proc_present_vector[PresentNumberRequests]) (ClientPtr) = { |
| 237 | proc_present_query_version, /* 0 */ |
| 238 | proc_present_pixmap, /* 1 */ |
| 239 | proc_present_notify_msc, /* 2 */ |
| 240 | proc_present_select_input, /* 3 */ |
| 241 | proc_present_query_capabilities, /* 4 */ |
| 242 | }; |
| 243 | |
| 244 | int |
| 245 | proc_present_dispatch(ClientPtr client) |
| 246 | { |
| 247 | REQUEST(xReq); |
| 248 | if (stuff->data >= PresentNumberRequests || !proc_present_vector[stuff->data]) |
| 249 | return BadRequest; |
| 250 | return (*proc_present_vector[stuff->data]) (client); |
| 251 | } |
| 252 | |
| 253 | static int |
| 254 | sproc_present_query_version(ClientPtr client) |
| 255 | { |
| 256 | REQUEST(xPresentQueryVersionReq); |
| 257 | |
| 258 | swaps(&stuff->length); |
| 259 | swapl(&stuff->majorVersion); |
| 260 | swapl(&stuff->minorVersion); |
| 261 | return (*proc_present_vector[stuff->presentReqType]) (client); |
| 262 | } |
| 263 | |
| 264 | static int |
| 265 | sproc_present_pixmap(ClientPtr client) |
| 266 | { |
| 267 | REQUEST(xPresentPixmapReq); |
| 268 | |
| 269 | swaps(&stuff->length); |
| 270 | swapl(&stuff->window); |
| 271 | swapl(&stuff->pixmap); |
| 272 | swapl(&stuff->valid); |
| 273 | swapl(&stuff->update); |
| 274 | swaps(&stuff->x_off); |
| 275 | swaps(&stuff->y_off); |
| 276 | swapll(&stuff->target_msc); |
| 277 | swapll(&stuff->divisor); |
| 278 | swapll(&stuff->remainder); |
| 279 | swapl(&stuff->idle_fence); |
| 280 | return (*proc_present_vector[stuff->presentReqType]) (client); |
| 281 | } |
| 282 | |
| 283 | static int |
| 284 | sproc_present_notify_msc(ClientPtr client) |
| 285 | { |
| 286 | REQUEST(xPresentNotifyMSCReq); |
| 287 | |
| 288 | swaps(&stuff->length); |
| 289 | swapl(&stuff->window); |
| 290 | swapll(&stuff->target_msc); |
| 291 | swapll(&stuff->divisor); |
| 292 | swapll(&stuff->remainder); |
| 293 | return (*proc_present_vector[stuff->presentReqType]) (client); |
| 294 | } |
| 295 | |
| 296 | static int |
| 297 | sproc_present_select_input (ClientPtr client) |
| 298 | { |
| 299 | REQUEST(xPresentSelectInputReq); |
| 300 | |
| 301 | swaps(&stuff->length); |
| 302 | swapl(&stuff->window); |
| 303 | swapl(&stuff->eventMask); |
| 304 | return (*proc_present_vector[stuff->presentReqType]) (client); |
| 305 | } |
| 306 | |
| 307 | static int |
| 308 | sproc_present_query_capabilities (ClientPtr client) |
| 309 | { |
| 310 | REQUEST(xPresentQueryCapabilitiesReq); |
| 311 | swaps(&stuff->length); |
| 312 | swapl(&stuff->target); |
| 313 | return (*proc_present_vector[stuff->presentReqType]) (client); |
| 314 | } |
| 315 | |
| 316 | int (*sproc_present_vector[PresentNumberRequests]) (ClientPtr) = { |
| 317 | sproc_present_query_version, /* 0 */ |
| 318 | sproc_present_pixmap, /* 1 */ |
| 319 | sproc_present_notify_msc, /* 2 */ |
| 320 | sproc_present_select_input, /* 3 */ |
| 321 | sproc_present_query_capabilities, /* 4 */ |
| 322 | }; |
| 323 | |
| 324 | int |
| 325 | sproc_present_dispatch(ClientPtr client) |
| 326 | { |
| 327 | REQUEST(xReq); |
| 328 | if (stuff->data >= PresentNumberRequests || !sproc_present_vector[stuff->data]) |
| 329 | return BadRequest; |
| 330 | return (*sproc_present_vector[stuff->data]) (client); |
| 331 | } |