52 lines
1.7 KiB
C++
52 lines
1.7 KiB
C++
#include "stdafx.h"
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#include "RewindData.h"
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#include "Console.h"
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#include "SaveStateManager.h"
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#include "../Utilities/miniz.h"
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void RewindData::GetStateData(stringstream &stateData)
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{
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unsigned long length = OriginalSaveStateSize;
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uint8_t* buffer = new uint8_t[length];
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uncompress(buffer, &length, SaveStateData.data(), (unsigned long)SaveStateData.size());
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stateData.write((char*)buffer, length);
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delete[] buffer;
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}
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void RewindData::LoadState(shared_ptr<Console> &console)
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{
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if(SaveStateData.size() > 0 && OriginalSaveStateSize > 0) {
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unsigned long length = OriginalSaveStateSize;
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uint8_t* buffer = new uint8_t[length];
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uncompress(buffer, &length, SaveStateData.data(), (unsigned long)SaveStateData.size());
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stringstream stream;
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stream.write((char*)buffer, length);
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stream.seekg(0, ios::beg);
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console->Deserialize(stream, SaveStateManager::FileFormatVersion);
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delete[] buffer;
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}
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}
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void RewindData::CompressState(string stateData, vector<uint8_t>& compressedState)
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{
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unsigned long compressedSize = compressBound((unsigned long)stateData.size());
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uint8_t* compressedData = new uint8_t[compressedSize];
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compress2(compressedData, &compressedSize, (unsigned char*)stateData.c_str(), (unsigned long)stateData.size(), MZ_BEST_SPEED);
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compressedState = vector<uint8_t>(compressedData, compressedData + compressedSize);
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delete[] compressedData;
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}
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void RewindData::SaveState(shared_ptr<Console> &console)
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{
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std::stringstream state;
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console->Serialize(state);
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string stateData = state.str();
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vector<uint8_t> compressedState;
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CompressState(stateData, compressedState);
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SaveStateData = compressedState;
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OriginalSaveStateSize = (uint32_t)stateData.size();
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FrameCount = 0;
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}
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