| 1 | /* |
| 2 | * Copyright © 2012 Red Hat Inc. |
| 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 | * Authors: Dave Airlie |
| 23 | */ |
| 24 | |
| 25 | #include "randrstr.h" |
| 26 | #include "swaprep.h" |
| 27 | |
| 28 | RESTYPE RRProviderType; |
| 29 | |
| 30 | /* |
| 31 | * Initialize provider type error value |
| 32 | */ |
| 33 | void |
| 34 | RRProviderInitErrorValue(void) |
| 35 | { |
| 36 | SetResourceTypeErrorValue(RRProviderType, RRErrorBase + BadRRProvider); |
| 37 | } |
| 38 | |
| 39 | #define ADD_PROVIDER(_pScreen) do { \ |
| 40 | pScrPriv = rrGetScrPriv((_pScreen)); \ |
| 41 | if (pScrPriv->provider) { \ |
| 42 | providers[count_providers] = pScrPriv->provider->id; \ |
| 43 | if (client->swapped) \ |
| 44 | swapl(&providers[count_providers]); \ |
| 45 | count_providers++; \ |
| 46 | } \ |
| 47 | } while(0) |
| 48 | |
| 49 | int |
| 50 | ProcRRGetProviders (ClientPtr client) |
| 51 | { |
| 52 | REQUEST(xRRGetProvidersReq); |
| 53 | xRRGetProvidersReply rep; |
| 54 | WindowPtr pWin; |
| 55 | ScreenPtr pScreen; |
| 56 | rrScrPrivPtr pScrPriv; |
| 57 | int rc; |
| 58 | CARD8 *extra; |
| 59 | unsigned int extraLen; |
| 60 | RRProvider *providers; |
| 61 | int total_providers = 0, count_providers = 0; |
| 62 | ScreenPtr iter; |
| 63 | |
| 64 | REQUEST_SIZE_MATCH(xRRGetProvidersReq); |
| 65 | rc = dixLookupWindow(&pWin, stuff->window, client, DixGetAttrAccess); |
| 66 | if (rc != Success) |
| 67 | return rc; |
| 68 | |
| 69 | pScreen = pWin->drawable.pScreen; |
| 70 | |
| 71 | pScrPriv = rrGetScrPriv(pScreen); |
| 72 | |
| 73 | if (pScrPriv->provider) |
| 74 | total_providers++; |
| 75 | xorg_list_for_each_entry(iter, &pScreen->output_slave_list, output_head) { |
| 76 | pScrPriv = rrGetScrPriv(iter); |
| 77 | total_providers += pScrPriv->provider ? 1 : 0; |
| 78 | } |
| 79 | xorg_list_for_each_entry(iter, &pScreen->offload_slave_list, offload_head) { |
| 80 | pScrPriv = rrGetScrPriv(iter); |
| 81 | total_providers += pScrPriv->provider ? 1 : 0; |
| 82 | } |
| 83 | xorg_list_for_each_entry(iter, &pScreen->unattached_list, unattached_head) { |
| 84 | pScrPriv = rrGetScrPriv(iter); |
| 85 | total_providers += pScrPriv->provider ? 1 : 0; |
| 86 | } |
| 87 | |
| 88 | pScrPriv = rrGetScrPriv(pScreen); |
| 89 | |
| 90 | if (!pScrPriv) |
| 91 | { |
| 92 | rep = (xRRGetProvidersReply) { |
| 93 | .type = X_Reply, |
| 94 | .sequenceNumber = client->sequence, |
| 95 | .length = 0, |
| 96 | .timestamp = currentTime.milliseconds, |
| 97 | .nProviders = 0 |
| 98 | }; |
| 99 | extra = NULL; |
| 100 | extraLen = 0; |
| 101 | } else { |
| 102 | rep = (xRRGetProvidersReply) { |
| 103 | .type = X_Reply, |
| 104 | .sequenceNumber = client->sequence, |
| 105 | .timestamp = pScrPriv->lastSetTime.milliseconds, |
| 106 | .nProviders = total_providers, |
| 107 | .length = total_providers |
| 108 | }; |
| 109 | extraLen = rep.length << 2; |
| 110 | if (extraLen) { |
| 111 | extra = malloc(extraLen); |
| 112 | if (!extra) |
| 113 | return BadAlloc; |
| 114 | } else |
| 115 | extra = NULL; |
| 116 | |
| 117 | providers = (RRProvider *)extra; |
| 118 | ADD_PROVIDER(pScreen); |
| 119 | xorg_list_for_each_entry(iter, &pScreen->output_slave_list, output_head) { |
| 120 | ADD_PROVIDER(iter); |
| 121 | } |
| 122 | xorg_list_for_each_entry(iter, &pScreen->offload_slave_list, offload_head) { |
| 123 | ADD_PROVIDER(iter); |
| 124 | } |
| 125 | xorg_list_for_each_entry(iter, &pScreen->unattached_list, unattached_head) { |
| 126 | ADD_PROVIDER(iter); |
| 127 | } |
| 128 | } |
| 129 | |
| 130 | if (client->swapped) { |
| 131 | swaps(&rep.sequenceNumber); |
| 132 | swapl(&rep.length); |
| 133 | swapl(&rep.timestamp); |
| 134 | swaps(&rep.nProviders); |
| 135 | } |
| 136 | WriteToClient(client, sizeof(xRRGetProvidersReply), (char *)&rep); |
| 137 | if (extraLen) |
| 138 | { |
| 139 | WriteToClient (client, extraLen, (char *) extra); |
| 140 | free(extra); |
| 141 | } |
| 142 | return Success; |
| 143 | } |
| 144 | |
| 145 | int |
| 146 | ProcRRGetProviderInfo (ClientPtr client) |
| 147 | { |
| 148 | REQUEST(xRRGetProviderInfoReq); |
| 149 | xRRGetProviderInfoReply rep; |
| 150 | rrScrPrivPtr pScrPriv, pScrProvPriv; |
| 151 | RRProviderPtr provider; |
| 152 | ScreenPtr pScreen; |
| 153 | CARD8 *extra; |
| 154 | unsigned int extraLen = 0; |
| 155 | RRCrtc *crtcs; |
| 156 | RROutput *outputs; |
| 157 | int i; |
| 158 | char *name; |
| 159 | ScreenPtr provscreen; |
| 160 | RRProvider *providers; |
| 161 | uint32_t *prov_cap; |
| 162 | |
| 163 | REQUEST_SIZE_MATCH(xRRGetProviderInfoReq); |
| 164 | VERIFY_RR_PROVIDER(stuff->provider, provider, DixReadAccess); |
| 165 | |
| 166 | pScreen = provider->pScreen; |
| 167 | pScrPriv = rrGetScrPriv(pScreen); |
| 168 | |
| 169 | rep = (xRRGetProviderInfoReply) { |
| 170 | .type = X_Reply, |
| 171 | .status = RRSetConfigSuccess, |
| 172 | .sequenceNumber = client->sequence, |
| 173 | .length = 0, |
| 174 | .capabilities = provider->capabilities, |
| 175 | .nameLength = provider->nameLength, |
| 176 | .timestamp = pScrPriv->lastSetTime.milliseconds, |
| 177 | .nCrtcs = pScrPriv->numCrtcs, |
| 178 | .nOutputs = pScrPriv->numOutputs, |
| 179 | .nAssociatedProviders = 0 |
| 180 | }; |
| 181 | |
| 182 | /* count associated providers */ |
| 183 | if (provider->offload_sink) |
| 184 | rep.nAssociatedProviders++; |
| 185 | if (provider->output_source) |
| 186 | rep.nAssociatedProviders++; |
| 187 | xorg_list_for_each_entry(provscreen, &pScreen->output_slave_list, output_head) |
| 188 | rep.nAssociatedProviders++; |
| 189 | xorg_list_for_each_entry(provscreen, &pScreen->offload_slave_list, offload_head) |
| 190 | rep.nAssociatedProviders++; |
| 191 | |
| 192 | rep.length = (pScrPriv->numCrtcs + pScrPriv->numOutputs + |
| 193 | (rep.nAssociatedProviders * 2) + bytes_to_int32(rep.nameLength)); |
| 194 | |
| 195 | extraLen = rep.length << 2; |
| 196 | if (extraLen) { |
| 197 | extra = malloc(extraLen); |
| 198 | if (!extra) |
| 199 | return BadAlloc; |
| 200 | } |
| 201 | else |
| 202 | extra = NULL; |
| 203 | |
| 204 | crtcs = (RRCrtc *)extra; |
| 205 | outputs = (RROutput *)(crtcs + rep.nCrtcs); |
| 206 | providers = (RRProvider *)(outputs + rep.nOutputs); |
| 207 | prov_cap = (unsigned int *)(providers + rep.nAssociatedProviders); |
| 208 | name = (char *)(prov_cap + rep.nAssociatedProviders); |
| 209 | |
| 210 | for (i = 0; i < pScrPriv->numCrtcs; i++) { |
| 211 | crtcs[i] = pScrPriv->crtcs[i]->id; |
| 212 | if (client->swapped) |
| 213 | swapl(&crtcs[i]); |
| 214 | } |
| 215 | |
| 216 | for (i = 0; i < pScrPriv->numOutputs; i++) { |
| 217 | outputs[i] = pScrPriv->outputs[i]->id; |
| 218 | if (client->swapped) |
| 219 | swapl(&outputs[i]); |
| 220 | } |
| 221 | |
| 222 | i = 0; |
| 223 | if (provider->offload_sink) { |
| 224 | providers[i] = provider->offload_sink->id; |
| 225 | if (client->swapped) |
| 226 | swapl(&providers[i]); |
| 227 | prov_cap[i] = RR_Capability_SinkOffload; |
| 228 | if (client->swapped) |
| 229 | swapl(&prov_cap[i]); |
| 230 | i++; |
| 231 | } |
| 232 | if (provider->output_source) { |
| 233 | providers[i] = provider->output_source->id; |
| 234 | if (client->swapped) |
| 235 | swapl(&providers[i]); |
| 236 | prov_cap[i] = RR_Capability_SourceOutput; |
| 237 | swapl(&prov_cap[i]); |
| 238 | i++; |
| 239 | } |
| 240 | xorg_list_for_each_entry(provscreen, &pScreen->output_slave_list, output_head) { |
| 241 | pScrProvPriv = rrGetScrPriv(provscreen); |
| 242 | providers[i] = pScrProvPriv->provider->id; |
| 243 | if (client->swapped) |
| 244 | swapl(&providers[i]); |
| 245 | prov_cap[i] = RR_Capability_SinkOutput; |
| 246 | if (client->swapped) |
| 247 | swapl(&prov_cap[i]); |
| 248 | i++; |
| 249 | } |
| 250 | xorg_list_for_each_entry(provscreen, &pScreen->offload_slave_list, offload_head) { |
| 251 | pScrProvPriv = rrGetScrPriv(provscreen); |
| 252 | providers[i] = pScrProvPriv->provider->id; |
| 253 | if (client->swapped) |
| 254 | swapl(&providers[i]); |
| 255 | prov_cap[i] = RR_Capability_SourceOffload; |
| 256 | if (client->swapped) |
| 257 | swapl(&prov_cap[i]); |
| 258 | i++; |
| 259 | } |
| 260 | |
| 261 | |
| 262 | memcpy(name, provider->name, rep.nameLength); |
| 263 | if (client->swapped) { |
| 264 | swaps(&rep.sequenceNumber); |
| 265 | swapl(&rep.length); |
| 266 | swapl(&rep.capabilities); |
| 267 | swaps(&rep.nCrtcs); |
| 268 | swaps(&rep.nOutputs); |
| 269 | swaps(&rep.nameLength); |
| 270 | } |
| 271 | WriteToClient(client, sizeof(xRRGetProviderInfoReply), (char *)&rep); |
| 272 | if (extraLen) |
| 273 | { |
| 274 | WriteToClient (client, extraLen, (char *) extra); |
| 275 | free(extra); |
| 276 | } |
| 277 | return Success; |
| 278 | } |
| 279 | |
| 280 | int |
| 281 | ProcRRSetProviderOutputSource(ClientPtr client) |
| 282 | { |
| 283 | REQUEST(xRRSetProviderOutputSourceReq); |
| 284 | rrScrPrivPtr pScrPriv; |
| 285 | RRProviderPtr provider, source_provider = NULL; |
| 286 | ScreenPtr pScreen; |
| 287 | |
| 288 | REQUEST_AT_LEAST_SIZE(xRRSetProviderOutputSourceReq); |
| 289 | |
| 290 | VERIFY_RR_PROVIDER(stuff->provider, provider, DixReadAccess); |
| 291 | |
| 292 | if (!(provider->capabilities & RR_Capability_SinkOutput)) |
| 293 | return BadValue; |
| 294 | |
| 295 | if (stuff->source_provider) { |
| 296 | VERIFY_RR_PROVIDER(stuff->source_provider, source_provider, DixReadAccess); |
| 297 | |
| 298 | if (!(source_provider->capabilities & RR_Capability_SourceOutput)) |
| 299 | return BadValue; |
| 300 | } |
| 301 | |
| 302 | pScreen = provider->pScreen; |
| 303 | pScrPriv = rrGetScrPriv(pScreen); |
| 304 | |
| 305 | pScrPriv->rrProviderSetOutputSource(pScreen, provider, source_provider); |
| 306 | |
| 307 | provider->changed = TRUE; |
| 308 | RRSetChanged(pScreen); |
| 309 | |
| 310 | RRTellChanged (pScreen); |
| 311 | |
| 312 | return Success; |
| 313 | } |
| 314 | |
| 315 | int |
| 316 | ProcRRSetProviderOffloadSink(ClientPtr client) |
| 317 | { |
| 318 | REQUEST(xRRSetProviderOffloadSinkReq); |
| 319 | rrScrPrivPtr pScrPriv; |
| 320 | RRProviderPtr provider, sink_provider = NULL; |
| 321 | ScreenPtr pScreen; |
| 322 | |
| 323 | REQUEST_AT_LEAST_SIZE(xRRSetProviderOffloadSinkReq); |
| 324 | |
| 325 | VERIFY_RR_PROVIDER(stuff->provider, provider, DixReadAccess); |
| 326 | if (!(provider->capabilities & RR_Capability_SourceOffload)) |
| 327 | return BadValue; |
| 328 | |
| 329 | if (stuff->sink_provider) { |
| 330 | VERIFY_RR_PROVIDER(stuff->sink_provider, sink_provider, DixReadAccess); |
| 331 | if (!(sink_provider->capabilities & RR_Capability_SinkOffload)) |
| 332 | return BadValue; |
| 333 | } |
| 334 | pScreen = provider->pScreen; |
| 335 | pScrPriv = rrGetScrPriv(pScreen); |
| 336 | |
| 337 | pScrPriv->rrProviderSetOffloadSink(pScreen, provider, sink_provider); |
| 338 | |
| 339 | provider->changed = TRUE; |
| 340 | RRSetChanged(pScreen); |
| 341 | |
| 342 | RRTellChanged (pScreen); |
| 343 | |
| 344 | return Success; |
| 345 | } |
| 346 | |
| 347 | RRProviderPtr |
| 348 | RRProviderCreate(ScreenPtr pScreen, const char *name, |
| 349 | int nameLength) |
| 350 | { |
| 351 | RRProviderPtr provider; |
| 352 | rrScrPrivPtr pScrPriv; |
| 353 | |
| 354 | pScrPriv = rrGetScrPriv(pScreen); |
| 355 | |
| 356 | provider = calloc(1, sizeof(RRProviderRec) + nameLength + 1); |
| 357 | if (!provider) |
| 358 | return NULL; |
| 359 | |
| 360 | provider->id = FakeClientID(0); |
| 361 | provider->pScreen = pScreen; |
| 362 | provider->name = (char *) (provider + 1); |
| 363 | provider->nameLength = nameLength; |
| 364 | memcpy(provider->name, name, nameLength); |
| 365 | provider->name[nameLength] = '\0'; |
| 366 | provider->changed = FALSE; |
| 367 | |
| 368 | if (!AddResource (provider->id, RRProviderType, (pointer) provider)) |
| 369 | return NULL; |
| 370 | pScrPriv->provider = provider; |
| 371 | return provider; |
| 372 | } |
| 373 | |
| 374 | /* |
| 375 | * Destroy a provider at shutdown |
| 376 | */ |
| 377 | void |
| 378 | RRProviderDestroy (RRProviderPtr provider) |
| 379 | { |
| 380 | FreeResource (provider->id, 0); |
| 381 | } |
| 382 | |
| 383 | void |
| 384 | RRProviderSetCapabilities(RRProviderPtr provider, uint32_t capabilities) |
| 385 | { |
| 386 | provider->capabilities = capabilities; |
| 387 | } |
| 388 | |
| 389 | static int |
| 390 | RRProviderDestroyResource (pointer value, XID pid) |
| 391 | { |
| 392 | RRProviderPtr provider = (RRProviderPtr)value; |
| 393 | ScreenPtr pScreen = provider->pScreen; |
| 394 | |
| 395 | if (pScreen) |
| 396 | { |
| 397 | rrScrPriv(pScreen); |
| 398 | |
| 399 | if (pScrPriv->rrProviderDestroy) |
| 400 | (*pScrPriv->rrProviderDestroy)(pScreen, provider); |
| 401 | pScrPriv->provider = NULL; |
| 402 | } |
| 403 | free(provider); |
| 404 | return 1; |
| 405 | } |
| 406 | |
| 407 | Bool |
| 408 | RRProviderInit(void) |
| 409 | { |
| 410 | RRProviderType = CreateNewResourceType(RRProviderDestroyResource, "Provider"); |
| 411 | if (!RRProviderType) |
| 412 | return FALSE; |
| 413 | |
| 414 | return TRUE; |
| 415 | } |
| 416 | |
| 417 | extern _X_EXPORT Bool |
| 418 | RRProviderLookup(XID id, RRProviderPtr *provider_p) |
| 419 | { |
| 420 | int rc = dixLookupResourceByType((void **)provider_p, id, |
| 421 | RRProviderType, NullClient, DixReadAccess); |
| 422 | if (rc == Success) |
| 423 | return TRUE; |
| 424 | return FALSE; |
| 425 | } |
| 426 | |
| 427 | void |
| 428 | RRDeliverProviderEvent(ClientPtr client, WindowPtr pWin, RRProviderPtr provider) |
| 429 | { |
| 430 | ScreenPtr pScreen = pWin->drawable.pScreen; |
| 431 | |
| 432 | rrScrPriv(pScreen); |
| 433 | |
| 434 | xRRProviderChangeNotifyEvent pe = { |
| 435 | .type = RRNotify + RREventBase, |
| 436 | .subCode = RRNotify_ProviderChange, |
| 437 | .timestamp = pScrPriv->lastSetTime.milliseconds, |
| 438 | .window = pWin->drawable.id, |
| 439 | .provider = provider->id |
| 440 | }; |
| 441 | |
| 442 | WriteEventsToClient(client, 1, (xEvent *) &pe); |
| 443 | } |