1 /* 2 * Copyright 2015 Google Inc. 3 * 4 * Use of this source code is governed by a BSD-style license that can be 5 * found in the LICENSE file. 6 */ 7 8 #include "GrBatch.h" 9 10 #include "GrMemoryPool.h" 11 #include "SkSpinlock.h" 12 13 // TODO I noticed a small benefit to using a larger exclusive pool for batches. Its very small, 14 // but seems to be mostly consistent. There is a lot in flux right now, but we should really 15 // revisit this when batch is everywhere 16 17 18 // We use a global pool protected by a mutex(spinlock). Chrome may use the same GrContext on 19 // different threads. The GrContext is not used concurrently on different threads and there is a 20 // memory barrier between accesses of a context on different threads. Also, there may be multiple 21 // GrContexts and those contexts may be in use concurrently on different threads. 22 namespace { 23 SK_DECLARE_STATIC_SPINLOCK(gBatchSpinlock); 24 class MemoryPoolAccessor { 25 public: 26 MemoryPoolAccessor() { gBatchSpinlock.acquire(); } 27 28 ~MemoryPoolAccessor() { gBatchSpinlock.release(); } 29 30 GrMemoryPool* pool() const { 31 static GrMemoryPool gPool(16384, 16384); 32 return &gPool; 33 } 34 }; 35 } 36 37 int32_t GrBatch::gCurrBatchClassID = GrBatch::kIllegalBatchID; 38 39 GrBATCH_SPEW(int32_t GrBatch::gCurrBatchUniqueID = GrBatch::kIllegalBatchID;) 40 41 void* GrBatch::operator new(size_t size) { 42 return MemoryPoolAccessor().pool()->allocate(size); 43 } 44 45 void GrBatch::operator delete(void* target) { 46 return MemoryPoolAccessor().pool()->release(target); 47 } 48 49 GrBatch::GrBatch(uint32_t classID) 50 : fClassID(classID) 51 #if GR_BATCH_SPEW 52 , fUniqueID(GenBatchID()) 53 #endif 54 { 55 SkDEBUGCODE(fUsed = false;) 56 } 57 58 GrBatch::~GrBatch() {} 59
