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Side by Side Diff: src/core/SkStream.cpp

Issue 1316123003: Style Change: SkNEW->new; SkDELETE->delete (Closed) Base URL: https://skia.googlesource.com/skia.git@master
Patch Set: 2015-08-26 (Wednesday) 15:59:00 EDT Created 5 years, 3 months ago
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1 1
2 /* 2 /*
3 * Copyright 2006 The Android Open Source Project 3 * Copyright 2006 The Android Open Source Project
4 * 4 *
5 * Use of this source code is governed by a BSD-style license that can be 5 * Use of this source code is governed by a BSD-style license that can be
6 * found in the LICENSE file. 6 * found in the LICENSE file.
7 */ 7 */
8 8
9 9
10 #include "SkStream.h" 10 #include "SkStream.h"
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383 383
384 bool SkMemoryStream::isAtEnd() const { 384 bool SkMemoryStream::isAtEnd() const {
385 return fOffset == fData->size(); 385 return fOffset == fData->size();
386 } 386 }
387 387
388 bool SkMemoryStream::rewind() { 388 bool SkMemoryStream::rewind() {
389 fOffset = 0; 389 fOffset = 0;
390 return true; 390 return true;
391 } 391 }
392 392
393 SkMemoryStream* SkMemoryStream::duplicate() const { 393 SkMemoryStream* SkMemoryStream::duplicate() const { return new SkMemoryStream(fD ata); }
394 return SkNEW_ARGS(SkMemoryStream, (fData));
395 }
396 394
397 size_t SkMemoryStream::getPosition() const { 395 size_t SkMemoryStream::getPosition() const {
398 return fOffset; 396 return fOffset;
399 } 397 }
400 398
401 bool SkMemoryStream::seek(size_t position) { 399 bool SkMemoryStream::seek(size_t position) {
402 fOffset = position > fData->size() 400 fOffset = position > fData->size()
403 ? fData->size() 401 ? fData->size()
404 : position; 402 : position;
405 return true; 403 return true;
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680 block = next; 678 block = next;
681 } 679 }
682 } 680 }
683 681
684 SkDynamicMemoryWStream::Block* const fHead; 682 SkDynamicMemoryWStream::Block* const fHead;
685 }; 683 };
686 684
687 class SkBlockMemoryStream : public SkStreamAsset { 685 class SkBlockMemoryStream : public SkStreamAsset {
688 public: 686 public:
689 SkBlockMemoryStream(SkDynamicMemoryWStream::Block* head, size_t size) 687 SkBlockMemoryStream(SkDynamicMemoryWStream::Block* head, size_t size)
690 : fBlockMemory(SkNEW_ARGS(SkBlockMemoryRefCnt, (head))), fCurrent(head) 688 : fBlockMemory(new SkBlockMemoryRefCnt(head))
691 , fSize(size) , fOffset(0), fCurrentOffset(0) { } 689 , fCurrent(head)
690 , fSize(size)
691 , fOffset(0)
692 , fCurrentOffset(0) {}
692 693
693 SkBlockMemoryStream(SkBlockMemoryRefCnt* headRef, size_t size) 694 SkBlockMemoryStream(SkBlockMemoryRefCnt* headRef, size_t size)
694 : fBlockMemory(SkRef(headRef)), fCurrent(fBlockMemory->fHead) 695 : fBlockMemory(SkRef(headRef)), fCurrent(fBlockMemory->fHead)
695 , fSize(size) , fOffset(0), fCurrentOffset(0) { } 696 , fSize(size) , fOffset(0), fCurrentOffset(0) { }
696 697
697 size_t read(void* buffer, size_t rawCount) override { 698 size_t read(void* buffer, size_t rawCount) override {
698 size_t count = rawCount; 699 size_t count = rawCount;
699 if (fOffset + count > fSize) { 700 if (fOffset + count > fSize) {
700 count = fSize - fOffset; 701 count = fSize - fOffset;
701 } 702 }
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746 } 747 }
747 748
748 bool rewind() override { 749 bool rewind() override {
749 fCurrent = fBlockMemory->fHead; 750 fCurrent = fBlockMemory->fHead;
750 fOffset = 0; 751 fOffset = 0;
751 fCurrentOffset = 0; 752 fCurrentOffset = 0;
752 return true; 753 return true;
753 } 754 }
754 755
755 SkBlockMemoryStream* duplicate() const override { 756 SkBlockMemoryStream* duplicate() const override {
756 return SkNEW_ARGS(SkBlockMemoryStream, (fBlockMemory.get(), fSize)); 757 return new SkBlockMemoryStream(fBlockMemory.get(), fSize);
757 } 758 }
758 759
759 size_t getPosition() const override { 760 size_t getPosition() const override {
760 return fOffset; 761 return fOffset;
761 } 762 }
762 763
763 bool seek(size_t position) override { 764 bool seek(size_t position) override {
764 // If possible, skip forward. 765 // If possible, skip forward.
765 if (position >= fOffset) { 766 if (position >= fOffset) {
766 size_t skipAmount = position - fOffset; 767 size_t skipAmount = position - fOffset;
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803 private: 804 private:
804 SkAutoTUnref<SkBlockMemoryRefCnt> const fBlockMemory; 805 SkAutoTUnref<SkBlockMemoryRefCnt> const fBlockMemory;
805 SkDynamicMemoryWStream::Block const * fCurrent; 806 SkDynamicMemoryWStream::Block const * fCurrent;
806 size_t const fSize; 807 size_t const fSize;
807 size_t fOffset; 808 size_t fOffset;
808 size_t fCurrentOffset; 809 size_t fCurrentOffset;
809 }; 810 };
810 811
811 SkStreamAsset* SkDynamicMemoryWStream::detachAsStream() { 812 SkStreamAsset* SkDynamicMemoryWStream::detachAsStream() {
812 if (fCopy) { 813 if (fCopy) {
813 SkMemoryStream* stream = SkNEW_ARGS(SkMemoryStream, (fCopy)); 814 SkMemoryStream* stream = new SkMemoryStream(fCopy);
814 this->reset(); 815 this->reset();
815 return stream; 816 return stream;
816 } 817 }
817 SkBlockMemoryStream* stream = SkNEW_ARGS(SkBlockMemoryStream, (fHead, fBytes Written)); 818 SkBlockMemoryStream* stream = new SkBlockMemoryStream(fHead, fBytesWritten);
818 fHead = 0; 819 fHead = 0;
819 this->reset(); 820 this->reset();
820 return stream; 821 return stream;
821 } 822 }
822 823
823 /////////////////////////////////////////////////////////////////////////////// 824 ///////////////////////////////////////////////////////////////////////////////
824 825
825 void SkDebugWStream::newline() 826 void SkDebugWStream::newline()
826 { 827 {
827 #if defined(SK_DEBUG) || defined(SK_DEVELOPER) 828 #if defined(SK_DEBUG) || defined(SK_DEVELOPER)
(...skipping 26 matching lines...) Expand all
854 } 855 }
855 856
856 SkData* data = SkData::NewFromFILE(file); 857 SkData* data = SkData::NewFromFILE(file);
857 sk_fclose(file); 858 sk_fclose(file);
858 return data; 859 return data;
859 } 860 }
860 861
861 SkStreamAsset* SkStream::NewFromFile(const char path[]) { 862 SkStreamAsset* SkStream::NewFromFile(const char path[]) {
862 SkAutoTUnref<SkData> data(mmap_filename(path)); 863 SkAutoTUnref<SkData> data(mmap_filename(path));
863 if (data.get()) { 864 if (data.get()) {
864 return SkNEW_ARGS(SkMemoryStream, (data.get())); 865 return new SkMemoryStream(data.get());
865 } 866 }
866 867
867 // If we get here, then our attempt at using mmap failed, so try normal 868 // If we get here, then our attempt at using mmap failed, so try normal
868 // file access. 869 // file access.
869 SkFILEStream* stream = SkNEW_ARGS(SkFILEStream, (path)); 870 SkFILEStream* stream = new SkFILEStream(path);
870 if (!stream->isValid()) { 871 if (!stream->isValid()) {
871 SkDELETE(stream); 872 delete stream;
872 stream = NULL; 873 stream = NULL;
873 } 874 }
874 return stream; 875 return stream;
875 } 876 }
876 877
877 // Declared in SkStreamPriv.h: 878 // Declared in SkStreamPriv.h:
878 size_t SkCopyStreamToStorage(SkAutoMalloc* storage, SkStream* stream) { 879 size_t SkCopyStreamToStorage(SkAutoMalloc* storage, SkStream* stream) {
879 SkASSERT(storage != NULL); 880 SkASSERT(storage != NULL);
880 SkASSERT(stream != NULL); 881 SkASSERT(stream != NULL);
881 882
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931 if (dupStream) { 932 if (dupStream) {
932 return dupStream.detach(); 933 return dupStream.detach();
933 } 934 }
934 stream->rewind(); 935 stream->rewind();
935 if (stream->hasLength()) { 936 if (stream->hasLength()) {
936 size_t length = stream->getLength(); 937 size_t length = stream->getLength();
937 if (stream->hasPosition()) { // If stream has length, but can't rewind. 938 if (stream->hasPosition()) { // If stream has length, but can't rewind.
938 length -= stream->getPosition(); 939 length -= stream->getPosition();
939 } 940 }
940 SkAutoTUnref<SkData> data(SkData::NewFromStream(stream, length)); 941 SkAutoTUnref<SkData> data(SkData::NewFromStream(stream, length));
941 return SkNEW_ARGS(SkMemoryStream, (data.get())); 942 return new SkMemoryStream(data.get());
942 } 943 }
943 SkDynamicMemoryWStream tempStream; 944 SkDynamicMemoryWStream tempStream;
944 const size_t bufferSize = 4096; 945 const size_t bufferSize = 4096;
945 char buffer[bufferSize]; 946 char buffer[bufferSize];
946 do { 947 do {
947 size_t bytesRead = stream->read(buffer, bufferSize); 948 size_t bytesRead = stream->read(buffer, bufferSize);
948 tempStream.write(buffer, bytesRead); 949 tempStream.write(buffer, bytesRead);
949 } while (!stream->isAtEnd()); 950 } while (!stream->isAtEnd());
950 return tempStream.detachAsStream(); // returns a SkBlockMemoryStream, 951 return tempStream.detachAsStream(); // returns a SkBlockMemoryStream,
951 // cheaper than copying to SkData 952 // cheaper than copying to SkData
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965 while (true) { 966 while (true) {
966 count = input->read(scratch, sizeof(scratch)); 967 count = input->read(scratch, sizeof(scratch));
967 if (0 == count) { 968 if (0 == count) {
968 return true; 969 return true;
969 } 970 }
970 if (!out->write(scratch, count)) { 971 if (!out->write(scratch, count)) {
971 return false; 972 return false;
972 } 973 }
973 } 974 }
974 } 975 }
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