1 2 /* 3 * Copyright 2011 Google Inc. 4 * 5 * Use of this source code is governed by a BSD-style license that can be 6 * found in the LICENSE file. 7 */ 8 #include "SkPathHeap.h" 9 #include "SkPath.h" 10 #include "SkStream.h" 11 #include "SkFlattenableBuffers.h" 12 #include <new> 13 14 SK_DEFINE_INST_COUNT(SkPathHeap) 15 16 #define kPathCount 64 17 18 SkPathHeap::SkPathHeap() : fHeap(kPathCount * sizeof(SkPath)) { 19 } 20 21 SkPathHeap::SkPathHeap(SkFlattenableReadBuffer& buffer) 22 : fHeap(kPathCount * sizeof(SkPath)) { 23 const int count = buffer.readInt(); 24 25 fPaths.setCount(count); 26 SkPath** ptr = fPaths.begin(); 27 SkPath* p = (SkPath*)fHeap.allocThrow(count * sizeof(SkPath)); 28 29 for (int i = 0; i < count; i++) { 30 new (p) SkPath; 31 buffer.readPath(p); 32 *ptr++ = p; // record the pointer 33 p++; // move to the next storage location 34 } 35 } 36 37 SkPathHeap::~SkPathHeap() { 38 SkPath** iter = fPaths.begin(); 39 SkPath** stop = fPaths.end(); 40 while (iter < stop) { 41 (*iter)->~SkPath(); 42 iter++; 43 } 44 } 45 46 int SkPathHeap::append(const SkPath& path) { 47 SkPath* p = (SkPath*)fHeap.allocThrow(sizeof(SkPath)); 48 new (p) SkPath(path); 49 *fPaths.append() = p; 50 return fPaths.count(); 51 } 52 53 void SkPathHeap::flatten(SkFlattenableWriteBuffer& buffer) const { 54 int count = fPaths.count(); 55 56 buffer.writeInt(count); 57 SkPath* const* iter = fPaths.begin(); 58 SkPath* const* stop = fPaths.end(); 59 while (iter < stop) { 60 buffer.writePath(**iter); 61 iter++; 62 } 63 } 64
