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| 1 /* libs/graphics/sgl/SkGlobals.cpp | |
| 2 ** | |
| 3 ** Copyright 2006, The Android Open Source Project | |
| 4 ** | |
| 5 ** Licensed under the Apache License, Version 2.0 (the "License"); | |
| 6 ** you may not use this file except in compliance with the License. | |
| 7 ** You may obtain a copy of the License at | |
| 8 ** | |
| 9 ** http://www.apache.org/licenses/LICENSE-2.0 | |
| 10 ** | |
| 11 ** Unless required by applicable law or agreed to in writing, software | |
| 12 ** distributed under the License is distributed on an "AS IS" BASIS, | |
| 13 ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
| 14 ** See the License for the specific language governing permissions and | |
| 15 ** limitations under the License. | |
| 16 */ | |
| 17 | |
| 18 #include "SkGlobals.h" | |
| 19 #include "SkThread.h" | |
| 20 | |
| 21 SkGlobals::Rec::~Rec() | |
| 22 { | |
| 23 } | |
| 24 | |
| 25 SkGlobals::Rec* SkGlobals::Find(uint32_t tag, Rec* (*create_proc)()) | |
| 26 { | |
| 27 SkGlobals::BootStrap& bootstrap = SkGlobals::GetBootStrap(); | |
| 28 | |
| 29 Rec* rec = bootstrap.fHead; | |
| 30 while (rec) | |
| 31 { | |
| 32 if (rec->fTag == tag) | |
| 33 return rec; | |
| 34 rec = rec->fNext; | |
| 35 } | |
| 36 | |
| 37 if (create_proc == NULL) // no create proc, just return not found | |
| 38 return NULL; | |
| 39 | |
| 40 // if we get here, we may need to create one. First grab the mutex, and | |
| 41 // search again, creating one if its not found the 2nd time. | |
| 42 | |
| 43 bootstrap.fMutex.acquire(); | |
| 44 | |
| 45 // search again, now that we have the mutex. Odds are it won't be there, but
we check again | |
| 46 // just in case it was added by another thread before we grabbed the mutex | |
| 47 | |
| 48 Rec*& head = bootstrap.fHead; | |
| 49 rec = head; | |
| 50 while (rec) | |
| 51 { | |
| 52 if (rec->fTag == tag) | |
| 53 break; | |
| 54 rec = rec->fNext; | |
| 55 } | |
| 56 | |
| 57 if (rec == NULL && (rec = create_proc()) != NULL) | |
| 58 { | |
| 59 rec->fTag = tag; | |
| 60 rec->fNext = head; | |
| 61 bootstrap.fHead = rec; | |
| 62 } | |
| 63 | |
| 64 bootstrap.fMutex.release(); | |
| 65 return rec; | |
| 66 } | |
| 67 | |
| 68 void SkGlobals::Init() | |
| 69 { | |
| 70 } | |
| 71 | |
| 72 void SkGlobals::Term() | |
| 73 { | |
| 74 SkGlobals::BootStrap& bootstrap = SkGlobals::GetBootStrap(); | |
| 75 | |
| 76 bootstrap.fMutex.acquire(); | |
| 77 | |
| 78 Rec*& head = bootstrap.fHead; | |
| 79 Rec* rec = head; | |
| 80 | |
| 81 while (rec) | |
| 82 { | |
| 83 Rec* next = rec->fNext; | |
| 84 SkDELETE(rec); | |
| 85 rec = next; | |
| 86 } | |
| 87 | |
| 88 bootstrap.fHead = NULL; | |
| 89 bootstrap.fMutex.release(); | |
| 90 } | |
| 91 | |
| 92 | |
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Chromium Code Reviews
Issue 113827:
Remove the remainder of the skia source code from the Chromium repo.... (Closed)
Base URL: svn://chrome-svn/chrome/trunk/src/