1 /*
2 * Copyright (C) 2013 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #include <malloc.h>
18 #include <string.h>
19 #include <pthread.h>
20
21 #include "RenderScript.h"
22 #include "rsCppStructs.h"
23 #include "rsCppInternal.h"
24
25 #include <dlfcn.h>
26
27 #if !defined(RS_SERVER) && defined(HAVE_ANDROID_OS)
28 #include <cutils/properties.h>
29 #endif
30
31 using namespace android;
32 using namespace RSC;
33
34 bool RS::gInitialized = false;
35 bool RS::usingNative = false;
36 pthread_mutex_t RS::gInitMutex = PTHREAD_MUTEX_INITIALIZER;
37 dispatchTable* RS::dispatch = NULL;
38 static int gInitError = 0;
39
RS()40 RS::RS() {
41 mDev = NULL;
42 mContext = NULL;
43 mErrorFunc = NULL;
44 mMessageFunc = NULL;
45 mMessageRun = false;
46 mInit = false;
47 mCurrentError = RS_SUCCESS;
48
49 memset(&mElements, 0, sizeof(mElements));
50 memset(&mSamplers, 0, sizeof(mSamplers));
51 }
52
~RS()53 RS::~RS() {
54 if (mInit == true) {
55 mMessageRun = false;
56
57 RS::dispatch->ContextDeinitToClient(mContext);
58
59 void *res = NULL;
60 int status = pthread_join(mMessageThreadId, &res);
61
62 RS::dispatch->ContextDestroy(mContext);
63 mContext = NULL;
64 RS::dispatch->DeviceDestroy(mDev);
65 mDev = NULL;
66 }
67 }
68
init(uint32_t flags)69 bool RS::init(uint32_t flags) {
70 return RS::init(RS_VERSION, flags);
71 }
72
loadSymbols(void * handle)73 static bool loadSymbols(void* handle) {
74
75 RS::dispatch->AllocationGetType = (AllocationGetTypeFnPtr)dlsym(handle, "rsaAllocationGetType");
76 if (RS::dispatch->AllocationGetType == NULL) {
77 ALOGE("Couldn't initialize RS::dispatch->AllocationGetType");
78 return false;
79 }
80 RS::dispatch->TypeGetNativeData = (TypeGetNativeDataFnPtr)dlsym(handle, "rsaTypeGetNativeData");
81 if (RS::dispatch->TypeGetNativeData == NULL) {
82 ALOGE("Couldn't initialize RS::dispatch->TypeGetNativeData");
83 return false;
84 }
85 RS::dispatch->ElementGetNativeData = (ElementGetNativeDataFnPtr)dlsym(handle, "rsaElementGetNativeData");
86 if (RS::dispatch->ElementGetNativeData == NULL) {
87 ALOGE("Couldn't initialize RS::dispatch->ElementGetNativeData");
88 return false;
89 }
90 RS::dispatch->ElementGetSubElements = (ElementGetSubElementsFnPtr)dlsym(handle, "rsaElementGetSubElements");
91 if (RS::dispatch->ElementGetSubElements == NULL) {
92 ALOGE("Couldn't initialize RS::dispatch->ElementGetSubElements");
93 return false;
94 }
95 RS::dispatch->DeviceCreate = (DeviceCreateFnPtr)dlsym(handle, "rsDeviceCreate");
96 if (RS::dispatch->DeviceCreate == NULL) {
97 ALOGE("Couldn't initialize RS::dispatch->DeviceCreate");
98 return false;
99 }
100 RS::dispatch->DeviceDestroy = (DeviceDestroyFnPtr)dlsym(handle, "rsDeviceDestroy");
101 if (RS::dispatch->DeviceDestroy == NULL) {
102 ALOGE("Couldn't initialize RS::dispatch->DeviceDestroy");
103 return false;
104 }
105 RS::dispatch->DeviceSetConfig = (DeviceSetConfigFnPtr)dlsym(handle, "rsDeviceSetConfig");
106 if (RS::dispatch->DeviceSetConfig == NULL) {
107 ALOGE("Couldn't initialize RS::dispatch->DeviceSetConfig");
108 return false;
109 }
110 RS::dispatch->ContextCreate = (ContextCreateFnPtr)dlsym(handle, "rsContextCreate");;
111 if (RS::dispatch->ContextCreate == NULL) {
112 ALOGE("Couldn't initialize RS::dispatch->ContextCreate");
113 return false;
114 }
115 RS::dispatch->GetName = (GetNameFnPtr)dlsym(handle, "rsaGetName");;
116 if (RS::dispatch->GetName == NULL) {
117 ALOGE("Couldn't initialize RS::dispatch->GetName");
118 return false;
119 }
120 RS::dispatch->ContextDestroy = (ContextDestroyFnPtr)dlsym(handle, "rsContextDestroy");
121 if (RS::dispatch->ContextDestroy == NULL) {
122 ALOGE("Couldn't initialize RS::dispatch->ContextDestroy");
123 return false;
124 }
125 RS::dispatch->ContextGetMessage = (ContextGetMessageFnPtr)dlsym(handle, "rsContextGetMessage");
126 if (RS::dispatch->ContextGetMessage == NULL) {
127 ALOGE("Couldn't initialize RS::dispatch->ContextGetMessage");
128 return false;
129 }
130 RS::dispatch->ContextPeekMessage = (ContextPeekMessageFnPtr)dlsym(handle, "rsContextPeekMessage");
131 if (RS::dispatch->ContextPeekMessage == NULL) {
132 ALOGE("Couldn't initialize RS::dispatch->ContextPeekMessage");
133 return false;
134 }
135 RS::dispatch->ContextSendMessage = (ContextSendMessageFnPtr)dlsym(handle, "rsContextSendMessage");
136 if (RS::dispatch->ContextSendMessage == NULL) {
137 ALOGE("Couldn't initialize RS::dispatch->ContextSendMessage");
138 return false;
139 }
140 RS::dispatch->ContextInitToClient = (ContextInitToClientFnPtr)dlsym(handle, "rsContextInitToClient");
141 if (RS::dispatch->ContextInitToClient == NULL) {
142 ALOGE("Couldn't initialize RS::dispatch->ContextInitToClient");
143 return false;
144 }
145 RS::dispatch->ContextDeinitToClient = (ContextDeinitToClientFnPtr)dlsym(handle, "rsContextDeinitToClient");
146 if (RS::dispatch->ContextDeinitToClient == NULL) {
147 ALOGE("Couldn't initialize RS::dispatch->ContextDeinitToClient");
148 return false;
149 }
150 RS::dispatch->TypeCreate = (TypeCreateFnPtr)dlsym(handle, "rsTypeCreate");
151 if (RS::dispatch->TypeCreate == NULL) {
152 ALOGE("Couldn't initialize RS::dispatch->TypeCreate");
153 return false;
154 }
155 RS::dispatch->AllocationCreateTyped = (AllocationCreateTypedFnPtr)dlsym(handle, "rsAllocationCreateTyped");
156 if (RS::dispatch->AllocationCreateTyped == NULL) {
157 ALOGE("Couldn't initialize RS::dispatch->AllocationCreateTyped");
158 return false;
159 }
160 RS::dispatch->AllocationCreateFromBitmap = (AllocationCreateFromBitmapFnPtr)dlsym(handle, "rsAllocationCreateFromBitmap");
161 if (RS::dispatch->AllocationCreateFromBitmap == NULL) {
162 ALOGE("Couldn't initialize RS::dispatch->AllocationCreateFromBitmap");
163 return false;
164 }
165 RS::dispatch->AllocationCubeCreateFromBitmap = (AllocationCubeCreateFromBitmapFnPtr)dlsym(handle, "rsAllocationCubeCreateFromBitmap");
166 if (RS::dispatch->AllocationCubeCreateFromBitmap == NULL) {
167 ALOGE("Couldn't initialize RS::dispatch->AllocationCubeCreateFromBitmap");
168 return false;
169 }
170 RS::dispatch->AllocationGetSurface = (AllocationGetSurfaceFnPtr)dlsym(handle, "rsAllocationGetSurface");
171 if (RS::dispatch->AllocationGetSurface == NULL) {
172 ALOGE("Couldn't initialize RS::dispatch->AllocationGetSurface");
173 return false;
174 }
175 RS::dispatch->AllocationSetSurface = (AllocationSetSurfaceFnPtr)dlsym(handle, "rsAllocationSetSurface");
176 if (RS::dispatch->AllocationSetSurface == NULL) {
177 ALOGE("Couldn't initialize RS::dispatch->AllocationSetSurface");
178 return false;
179 }
180 RS::dispatch->ContextFinish = (ContextFinishFnPtr)dlsym(handle, "rsContextFinish");
181 if (RS::dispatch->ContextFinish == NULL) {
182 ALOGE("Couldn't initialize RS::dispatch->ContextFinish");
183 return false;
184 }
185 RS::dispatch->ContextDump = (ContextDumpFnPtr)dlsym(handle, "rsContextDump");
186 if (RS::dispatch->ContextDump == NULL) {
187 ALOGE("Couldn't initialize RS::dispatch->ContextDump");
188 return false;
189 }
190 RS::dispatch->ContextSetPriority = (ContextSetPriorityFnPtr)dlsym(handle, "rsContextSetPriority");
191 if (RS::dispatch->ContextSetPriority == NULL) {
192 ALOGE("Couldn't initialize RS::dispatch->ContextSetPriority");
193 return false;
194 }
195 RS::dispatch->AssignName = (AssignNameFnPtr)dlsym(handle, "rsAssignName");
196 if (RS::dispatch->AssignName == NULL) {
197 ALOGE("Couldn't initialize RS::dispatch->AssignName");
198 return false;
199 }
200 RS::dispatch->ObjDestroy = (ObjDestroyFnPtr)dlsym(handle, "rsObjDestroy");
201 if (RS::dispatch->ObjDestroy == NULL) {
202 ALOGE("Couldn't initialize RS::dispatch->ObjDestroy");
203 return false;
204 }
205 RS::dispatch->ElementCreate = (ElementCreateFnPtr)dlsym(handle, "rsElementCreate");
206 if (RS::dispatch->ElementCreate == NULL) {
207 ALOGE("Couldn't initialize RS::dispatch->ElementCreate");
208 return false;
209 }
210 RS::dispatch->ElementCreate2 = (ElementCreate2FnPtr)dlsym(handle, "rsElementCreate2");
211 if (RS::dispatch->ElementCreate2 == NULL) {
212 ALOGE("Couldn't initialize RS::dispatch->ElementCreate2");
213 return false;
214 }
215 RS::dispatch->AllocationCopyToBitmap = (AllocationCopyToBitmapFnPtr)dlsym(handle, "rsAllocationCopyToBitmap");
216 if (RS::dispatch->AllocationCopyToBitmap == NULL) {
217 ALOGE("Couldn't initialize RS::dispatch->AllocationCopyToBitmap");
218 return false;
219 }
220 RS::dispatch->Allocation1DData = (Allocation1DDataFnPtr)dlsym(handle, "rsAllocation1DData");
221 if (RS::dispatch->Allocation1DData == NULL) {
222 ALOGE("Couldn't initialize RS::dispatch->Allocation1DData");
223 return false;
224 }
225 RS::dispatch->Allocation1DElementData = (Allocation1DElementDataFnPtr)dlsym(handle, "rsAllocation1DElementData");
226 if (RS::dispatch->Allocation1DElementData == NULL) {
227 ALOGE("Couldn't initialize RS::dispatch->Allocation1DElementData");
228 return false;
229 }
230 RS::dispatch->Allocation2DData = (Allocation2DDataFnPtr)dlsym(handle, "rsAllocation2DData");
231 if (RS::dispatch->Allocation2DData == NULL) {
232 ALOGE("Couldn't initialize RS::dispatch->Allocation2DData");
233 return false;
234 }
235 RS::dispatch->Allocation3DData = (Allocation3DDataFnPtr)dlsym(handle, "rsAllocation3DData");
236 if (RS::dispatch->Allocation3DData == NULL) {
237 ALOGE("Couldn't initialize RS::dispatch->Allocation3DData");
238 return false;
239 }
240 RS::dispatch->AllocationGenerateMipmaps = (AllocationGenerateMipmapsFnPtr)dlsym(handle, "rsAllocationGenerateMipmaps");
241 if (RS::dispatch->AllocationGenerateMipmaps == NULL) {
242 ALOGE("Couldn't initialize RS::dispatch->AllocationGenerateMipmaps");
243 return false;
244 }
245 RS::dispatch->AllocationRead = (AllocationReadFnPtr)dlsym(handle, "rsAllocationRead");
246 if (RS::dispatch->AllocationRead == NULL) {
247 ALOGE("Couldn't initialize RS::dispatch->AllocationRead");
248 return false;
249 }
250 RS::dispatch->Allocation1DRead = (Allocation1DReadFnPtr)dlsym(handle, "rsAllocation1DRead");
251 if (RS::dispatch->Allocation1DRead == NULL) {
252 ALOGE("Couldn't initialize RS::dispatch->Allocation1DRead");
253 return false;
254 }
255 RS::dispatch->Allocation2DRead = (Allocation2DReadFnPtr)dlsym(handle, "rsAllocation2DRead");
256 if (RS::dispatch->Allocation2DRead == NULL) {
257 ALOGE("Couldn't initialize RS::dispatch->Allocation2DRead");
258 return false;
259 }
260 RS::dispatch->AllocationSyncAll = (AllocationSyncAllFnPtr)dlsym(handle, "rsAllocationSyncAll");
261 if (RS::dispatch->AllocationSyncAll == NULL) {
262 ALOGE("Couldn't initialize RS::dispatch->AllocationSyncAll");
263 return false;
264 }
265 RS::dispatch->AllocationResize1D = (AllocationResize1DFnPtr)dlsym(handle, "rsAllocationResize1D");
266 if (RS::dispatch->AllocationResize1D == NULL) {
267 ALOGE("Couldn't initialize RS::dispatch->AllocationResize1D");
268 return false;
269 }
270 RS::dispatch->AllocationCopy2DRange = (AllocationCopy2DRangeFnPtr)dlsym(handle, "rsAllocationCopy2DRange");
271 if (RS::dispatch->AllocationCopy2DRange == NULL) {
272 ALOGE("Couldn't initialize RS::dispatch->AllocationCopy2DRange");
273 return false;
274 }
275 RS::dispatch->AllocationCopy3DRange = (AllocationCopy3DRangeFnPtr)dlsym(handle, "rsAllocationCopy3DRange");
276 if (RS::dispatch->AllocationCopy3DRange == NULL) {
277 ALOGE("Couldn't initialize RS::dispatch->AllocationCopy3DRange");
278 return false;
279 }
280 RS::dispatch->SamplerCreate = (SamplerCreateFnPtr)dlsym(handle, "rsSamplerCreate");
281 if (RS::dispatch->SamplerCreate == NULL) {
282 ALOGE("Couldn't initialize RS::dispatch->SamplerCreate");
283 return false;
284 }
285 RS::dispatch->ScriptBindAllocation = (ScriptBindAllocationFnPtr)dlsym(handle, "rsScriptBindAllocation");
286 if (RS::dispatch->ScriptBindAllocation == NULL) {
287 ALOGE("Couldn't initialize RS::dispatch->ScriptBindAllocation");
288 return false;
289 }
290 RS::dispatch->ScriptSetTimeZone = (ScriptSetTimeZoneFnPtr)dlsym(handle, "rsScriptSetTimeZone");
291 if (RS::dispatch->ScriptSetTimeZone == NULL) {
292 ALOGE("Couldn't initialize RS::dispatch->ScriptSetTimeZone");
293 return false;
294 }
295 RS::dispatch->ScriptInvoke = (ScriptInvokeFnPtr)dlsym(handle, "rsScriptInvoke");
296 if (RS::dispatch->ScriptInvoke == NULL) {
297 ALOGE("Couldn't initialize RS::dispatch->ScriptInvoke");
298 return false;
299 }
300 RS::dispatch->ScriptInvokeV = (ScriptInvokeVFnPtr)dlsym(handle, "rsScriptInvokeV");
301 if (RS::dispatch->ScriptInvokeV == NULL) {
302 ALOGE("Couldn't initialize RS::dispatch->ScriptInvokeV");
303 return false;
304 }
305 RS::dispatch->ScriptForEach = (ScriptForEachFnPtr)dlsym(handle, "rsScriptForEach");
306 if (RS::dispatch->ScriptForEach == NULL) {
307 ALOGE("Couldn't initialize RS::dispatch->ScriptForEach");
308 return false;
309 }
310 RS::dispatch->ScriptSetVarI = (ScriptSetVarIFnPtr)dlsym(handle, "rsScriptSetVarI");
311 if (RS::dispatch->ScriptSetVarI == NULL) {
312 ALOGE("Couldn't initialize RS::dispatch->ScriptSetVarI");
313 return false;
314 }
315 RS::dispatch->ScriptSetVarObj = (ScriptSetVarObjFnPtr)dlsym(handle, "rsScriptSetVarObj");
316 if (RS::dispatch->ScriptSetVarObj == NULL) {
317 ALOGE("Couldn't initialize RS::dispatch->ScriptSetVarObj");
318 return false;
319 }
320 RS::dispatch->ScriptSetVarJ = (ScriptSetVarJFnPtr)dlsym(handle, "rsScriptSetVarJ");
321 if (RS::dispatch->ScriptSetVarJ == NULL) {
322 ALOGE("Couldn't initialize RS::dispatch->ScriptSetVarJ");
323 return false;
324 }
325 RS::dispatch->ScriptSetVarF = (ScriptSetVarFFnPtr)dlsym(handle, "rsScriptSetVarF");
326 if (RS::dispatch->ScriptSetVarF == NULL) {
327 ALOGE("Couldn't initialize RS::dispatch->ScriptSetVarF");
328 return false;
329 }
330 RS::dispatch->ScriptSetVarD = (ScriptSetVarDFnPtr)dlsym(handle, "rsScriptSetVarD");
331 if (RS::dispatch->ScriptSetVarD == NULL) {
332 ALOGE("Couldn't initialize RS::dispatch->ScriptSetVarD");
333 return false;
334 }
335 RS::dispatch->ScriptSetVarV = (ScriptSetVarVFnPtr)dlsym(handle, "rsScriptSetVarV");
336 if (RS::dispatch->ScriptSetVarV == NULL) {
337 ALOGE("Couldn't initialize RS::dispatch->ScriptSetVarV");
338 return false;
339 }
340 RS::dispatch->ScriptGetVarV = (ScriptGetVarVFnPtr)dlsym(handle, "rsScriptGetVarV");
341 if (RS::dispatch->ScriptGetVarV == NULL) {
342 ALOGE("Couldn't initialize RS::dispatch->ScriptGetVarV");
343 return false;
344 }
345 RS::dispatch->ScriptSetVarVE = (ScriptSetVarVEFnPtr)dlsym(handle, "rsScriptSetVarVE");
346 if (RS::dispatch->ScriptSetVarVE == NULL) {
347 ALOGE("Couldn't initialize RS::dispatch->ScriptSetVarVE");
348 return false;
349 }
350 RS::dispatch->ScriptCCreate = (ScriptCCreateFnPtr)dlsym(handle, "rsScriptCCreate");
351 if (RS::dispatch->ScriptCCreate == NULL) {
352 ALOGE("Couldn't initialize RS::dispatch->ScriptCCreate");
353 return false;
354 }
355 RS::dispatch->ScriptIntrinsicCreate = (ScriptIntrinsicCreateFnPtr)dlsym(handle, "rsScriptIntrinsicCreate");
356 if (RS::dispatch->ScriptIntrinsicCreate == NULL) {
357 ALOGE("Couldn't initialize RS::dispatch->ScriptIntrinsicCreate");
358 return false;
359 }
360 RS::dispatch->ScriptKernelIDCreate = (ScriptKernelIDCreateFnPtr)dlsym(handle, "rsScriptKernelIDCreate");
361 if (RS::dispatch->ScriptKernelIDCreate == NULL) {
362 ALOGE("Couldn't initialize RS::dispatch->ScriptKernelIDCreate");
363 return false;
364 }
365 RS::dispatch->ScriptFieldIDCreate = (ScriptFieldIDCreateFnPtr)dlsym(handle, "rsScriptFieldIDCreate");
366 if (RS::dispatch->ScriptFieldIDCreate == NULL) {
367 ALOGE("Couldn't initialize RS::dispatch->ScriptFieldIDCreate");
368 return false;
369 }
370 RS::dispatch->ScriptGroupCreate = (ScriptGroupCreateFnPtr)dlsym(handle, "rsScriptGroupCreate");
371 if (RS::dispatch->ScriptGroupCreate == NULL) {
372 ALOGE("Couldn't initialize RS::dispatch->ScriptGroupCreate");
373 return false;
374 }
375 RS::dispatch->ScriptGroupSetOutput = (ScriptGroupSetOutputFnPtr)dlsym(handle, "rsScriptGroupSetOutput");
376 if (RS::dispatch->ScriptGroupSetOutput == NULL) {
377 ALOGE("Couldn't initialize RS::dispatch->ScriptGroupSetOutput");
378 return false;
379 }
380 RS::dispatch->ScriptGroupSetInput = (ScriptGroupSetInputFnPtr)dlsym(handle, "rsScriptGroupSetInput");
381 if (RS::dispatch->ScriptGroupSetInput == NULL) {
382 ALOGE("Couldn't initialize RS::dispatch->ScriptGroupSetInput");
383 return false;
384 }
385 RS::dispatch->ScriptGroupExecute = (ScriptGroupExecuteFnPtr)dlsym(handle, "rsScriptGroupExecute");
386 if (RS::dispatch->ScriptGroupExecute == NULL) {
387 ALOGE("Couldn't initialize RS::dispatch->ScriptGroupExecute");
388 return false;
389 }
390 RS::dispatch->AllocationIoSend = (AllocationIoSendFnPtr)dlsym(handle, "rsAllocationIoSend");
391 if (RS::dispatch->AllocationIoSend == NULL) {
392 ALOGE("Couldn't initialize RS::dispatch->AllocationIoSend");
393 return false;
394 }
395 RS::dispatch->AllocationIoReceive = (AllocationIoReceiveFnPtr)dlsym(handle, "rsAllocationIoReceive");
396 if (RS::dispatch->AllocationIoReceive == NULL) {
397 ALOGE("Couldn't initialize RS::dispatch->AllocationIoReceive");
398 return false;
399 }
400
401 return true;
402 }
403
404 // this will only open API 19+ libRS
405 // because that's when we changed libRS to extern "C" entry points
loadSO(const char * filename)406 static bool loadSO(const char* filename) {
407 void* handle = dlopen(filename, RTLD_LAZY | RTLD_LOCAL);
408 if (handle == NULL) {
409 ALOGE("couldn't dlopen %s, %s", filename, dlerror());
410 return false;
411 }
412
413 if (loadSymbols(handle) == false) {
414 ALOGE("%s init failed!", filename);
415 return false;
416 }
417 //ALOGE("Successfully loaded %s", filename);
418 return true;
419 }
420
getProp(const char * str)421 static uint32_t getProp(const char *str) {
422 #if !defined(RS_SERVER) && defined(HAVE_ANDROID_OS)
423 char buf[256];
424 property_get(str, buf, "0");
425 return atoi(buf);
426 #else
427 return 0;
428 #endif
429 }
430
initDispatch(int targetApi)431 bool RS::initDispatch(int targetApi) {
432 pthread_mutex_lock(&gInitMutex);
433 if (gInitError) {
434 goto error;
435 } else if (gInitialized) {
436 pthread_mutex_unlock(&gInitMutex);
437 return true;
438 }
439
440 RS::dispatch = new dispatchTable;
441
442 // attempt to load libRS, load libRSSupport on failure
443 // if property is set, proceed directly to libRSSupport
444 if (getProp("debug.rs.forcecompat") == 0) {
445 usingNative = loadSO("libRS.so");
446 }
447 if (usingNative == false) {
448 if (loadSO("libRSSupport.so") == false) {
449 ALOGE("Failed to load libRS.so and libRSSupport.so");
450 goto error;
451 }
452 }
453
454 gInitialized = true;
455
456 pthread_mutex_unlock(&gInitMutex);
457 return true;
458
459 error:
460 gInitError = 1;
461 pthread_mutex_unlock(&gInitMutex);
462 return false;
463 }
464
init(int targetApi,uint32_t flags)465 bool RS::init(int targetApi, uint32_t flags) {
466 if (initDispatch(targetApi) == false) {
467 ALOGE("Couldn't initialize dispatch table");
468 return false;
469 }
470
471 mDev = RS::dispatch->DeviceCreate();
472 if (mDev == 0) {
473 ALOGE("Device creation failed");
474 return false;
475 }
476
477 if (flags >= RS_CONTEXT_MAX) {
478 ALOGE("Invalid flags passed");
479 return false;
480 }
481
482 mContext = RS::dispatch->ContextCreate(mDev, 0, targetApi, RS_CONTEXT_TYPE_NORMAL, flags);
483 if (mContext == 0) {
484 ALOGE("Context creation failed");
485 return false;
486 }
487
488 pid_t mNativeMessageThreadId;
489
490 int status = pthread_create(&mMessageThreadId, NULL, threadProc, this);
491 if (status) {
492 ALOGE("Failed to start RS message thread.");
493 return false;
494 }
495 // Wait for the message thread to be active.
496 while (!mMessageRun) {
497 usleep(1000);
498 }
499
500 mInit = true;
501
502 return true;
503 }
504
throwError(RSError error,const char * errMsg)505 void RS::throwError(RSError error, const char *errMsg) {
506 if (mCurrentError == RS_SUCCESS) {
507 mCurrentError = error;
508 ALOGE("RS CPP error: %s", errMsg);
509 } else {
510 ALOGE("RS CPP error (masked by previous error): %s", errMsg);
511 }
512 }
513
getError()514 RSError RS::getError() {
515 return mCurrentError;
516 }
517
518
threadProc(void * vrsc)519 void * RS::threadProc(void *vrsc) {
520 RS *rs = static_cast<RS *>(vrsc);
521 size_t rbuf_size = 256;
522 void * rbuf = malloc(rbuf_size);
523
524 RS::dispatch->ContextInitToClient(rs->mContext);
525 rs->mMessageRun = true;
526
527 while (rs->mMessageRun) {
528 size_t receiveLen = 0;
529 uint32_t usrID = 0;
530 uint32_t subID = 0;
531 RsMessageToClientType r = RS::dispatch->ContextPeekMessage(rs->mContext,
532 &receiveLen, sizeof(receiveLen),
533 &usrID, sizeof(usrID));
534
535 if (receiveLen >= rbuf_size) {
536 rbuf_size = receiveLen + 32;
537 rbuf = realloc(rbuf, rbuf_size);
538 }
539 if (!rbuf) {
540 ALOGE("RS::message handler realloc error %zu", rbuf_size);
541 // No clean way to recover now?
542 }
543 RS::dispatch->ContextGetMessage(rs->mContext, rbuf, rbuf_size, &receiveLen, sizeof(receiveLen),
544 &subID, sizeof(subID));
545
546 switch(r) {
547 case RS_MESSAGE_TO_CLIENT_ERROR:
548 ALOGE("RS Error %s", (const char *)rbuf);
549 rs->throwError(RS_ERROR_RUNTIME_ERROR, "Error returned from runtime");
550 if(rs->mMessageFunc != NULL) {
551 rs->mErrorFunc(usrID, (const char *)rbuf);
552 }
553 break;
554 case RS_MESSAGE_TO_CLIENT_NONE:
555 case RS_MESSAGE_TO_CLIENT_EXCEPTION:
556 case RS_MESSAGE_TO_CLIENT_RESIZE:
557 // teardown. But we want to avoid starving other threads during
558 // teardown by yielding until the next line in the destructor can
559 // execute to set mRun = false. Note that the FIFO sends an
560 // empty NONE message when it reaches its destructor.
561 usleep(1000);
562 break;
563 case RS_MESSAGE_TO_CLIENT_USER:
564 if(rs->mMessageFunc != NULL) {
565 rs->mMessageFunc(usrID, rbuf, receiveLen);
566 } else {
567 ALOGE("Received a message from the script with no message handler installed.");
568 }
569 break;
570
571 default:
572 ALOGE("RS unknown message type %i", r);
573 }
574 }
575
576 if (rbuf) {
577 free(rbuf);
578 }
579 ALOGE("RS Message thread exiting.");
580 return NULL;
581 }
582
setErrorHandler(ErrorHandlerFunc_t func)583 void RS::setErrorHandler(ErrorHandlerFunc_t func) {
584 mErrorFunc = func;
585 }
586
setMessageHandler(MessageHandlerFunc_t func)587 void RS::setMessageHandler(MessageHandlerFunc_t func) {
588 mMessageFunc = func;
589 }
590
finish()591 void RS::finish() {
592 RS::dispatch->ContextFinish(mContext);
593 }
594