8125ad1ce1
Batch #1714 by ragnarok-clanker: 0 byte-identical, 1 confirmed by peer review. - fn_06623 BuildReplayTaggedRecord: logic confirmed by peer review (annotation added to existing code) Accepted without human review: peers confirmed the logic ("same" ahead by at least 3, with 70% of the votes).
261 lines
8.1 KiB
C++
261 lines
8.1 KiB
C++
#include "Client/Replay.h"
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#include <windows.h>
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#include <timeapi.h>
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// GLOBAL: gl_24549
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int g_replayAnimationScaling = 0;
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// GLOBAL: gl_24630
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static int g_replayFlushCounter = 0;
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// STRING: st_16831
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static const char g_replayHeaderText[] = "<< Ragnarok Replay File Version 0.%02d >>\r\n \xA1\xD8 Do not modify file! ";
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// STRING: st_16832
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static const char g_replayHeaderPrefix[] = "\r\n";
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#pragma pack(push, 1)
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struct ReplayTaggedRecordHeader {
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/* 0000 */ std::uint16_t id;
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/* 0002 */ std::uint32_t bytes;
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};
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#pragma pack(pop)
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static_assert(sizeof(ReplayTaggedRecordHeader) == 6);
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// OFFSET: 0x006DA340
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// FUNCTION: fn_06623
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std::vector<unsigned char> BuildReplayTaggedRecord(std::uint16_t id, const void* data, std::uint32_t bytes) {
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std::vector<unsigned char> record(bytes + 6u, 0);
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const ReplayTaggedRecordHeader header{id, bytes};
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std::memcpy(record.data(), &header, sizeof(header));
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if (bytes != 0) {
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std::memcpy(record.data() + sizeof(header), data, bytes);
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}
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return record;
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}
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// OFFSET: 0x00B83920
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// FUNCTION: fn_19301
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ReplayCachedPacket::ReplayCachedPacket(const ReplayCachedPacket& other)
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: enabled(other.enabled), bytes(other.bytes) {
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}
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// OFFSET: 0x00B839D0
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// FUNCTION: fn_19302
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ReplaySection::ReplaySection() : id(0), bytes(0), fileOffset(0) {
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}
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// OFFSET: 0x00B83D00
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// FUNCTION: fn_19305
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void ReplaySection::Clear() {
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this->id = 0;
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this->bytes = 0;
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this->fileOffset = 0;
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}
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// OFFSET: 0x00B83D20
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// FUNCTION: fn_19306
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ReplaySection::~ReplaySection() {
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this->id = 0;
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this->bytes = 0;
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this->fileOffset = 0;
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}
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// OFFSET: 0x00B83540
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// FUNCTION: fn_19300
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Replay::Replay() : cipherIndex(0), cipherBase(0), cipherKey(0), unknown_01F4(0), unknown_01F8(0) {
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this->state = 1;
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this->baseFrame = 0;
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this->started = 0;
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this->frame = 0;
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this->elapsed = 0;
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this->speed = 1.0f;
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std::memset(&this->header, 0, sizeof(this->header));
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std::memset(&this->header.options, 1, sizeof(this->header.options));
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this->header.Reset();
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this->records = 0;
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this->fileMode = -1;
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this->file = nullptr;
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this->fileOffset = 0;
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this->previousTick = timeGetTime();
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this->unknown_01F8 = 0;
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this->unknown_01F4 = 0;
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this->cachedPackets.resize(3143, ReplayCachedPacket{});
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this->cachedPackets[2459].enabled = true;
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this->cachedPackets[470].enabled = true;
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}
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// OFFSET: 0x00B855B0
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// FUNCTION: fn_19326
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bool Replay::WriteSection(int id, std::vector<unsigned char>& bytes, int event) {
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if (bytes.empty()) {
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return false;
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}
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if (id <= 0 || id >= 26 || bytes.size() == 0 || bytes.data() == nullptr) {
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return false;
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}
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ReplaySection& section = this->sections[id];
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if (event == 14) {
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section.id = static_cast<std::uint16_t>(id);
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section.bytes = bytes.size();
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section.fileOffset = this->fileOffset;
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this->fileOffset += bytes.size();
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}
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if (section.bytes != 0) {
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this->cipherBase = this->header.key0 >> 5;
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this->cipherIndex = 0;
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this->cipherKey = this->header.key1 >> 3;
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for (std::uint32_t index = 0; index < section.bytes / 4; ++index) {
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std::uint32_t word;
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std::memcpy(&word, bytes.data() + index * 4, sizeof(word));
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word ^= this->cipherKey * (++this->cipherIndex + this->cipherBase);
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std::memcpy(bytes.data() + index * 4, &word, sizeof(word));
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}
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}
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std::fseek(this->file, static_cast<long>(section.fileOffset), SEEK_SET);
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return std::fwrite(bytes.data(), section.bytes, 1, this->file) != 0;
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}
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// OFFSET: 0x00B857E0
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// FUNCTION: fn_19327
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int Replay::WriteHeader(int event) {
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this->header.records = this->records;
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this->header.fileOffset = this->fileOffset;
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this->header.closingSignature = 0x52414705;
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this->header.signature = 0x52414705;
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switch (event) {
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case 11: {
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this->sections[25].id = 111;
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bool written;
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{
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std::vector<unsigned char> metadata = this->BuildMetadata();
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written = this->WriteSection(2, metadata, 14);
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}
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if (!written) {
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return 0;
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}
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char text[100] = {};
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std::sprintf(text, g_replayHeaderText, 5);
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std::sprintf(text + 95, g_replayHeaderPrefix);
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std::fseek(this->file, 0, SEEK_SET);
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std::fwrite(text, sizeof(text), 1, this->file);
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std::fwrite(&this->header, 12, 1, this->file);
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return 1;
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}
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case 12: {
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if (++g_replayFlushCounter != 1200) {
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return 1;
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}
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this->header.closingSignature = 0x51404605;
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this->header.signature = 0x51404605;
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bool written;
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{
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std::vector<unsigned char> metadata = this->BuildMetadata();
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written = this->WriteSection(2, metadata, 15);
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}
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if (!written) {
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return 0;
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}
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std::fseek(this->file, 112, SEEK_SET);
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std::fwrite(this->sections, sizeof(this->sections), 1, this->file);
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g_replayFlushCounter = 0;
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return 1;
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}
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case 13: {
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bool written;
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{
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std::vector<unsigned char> metadata = this->BuildMetadata();
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written = this->WriteSection(2, metadata, 15);
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}
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if (!written) {
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return 0;
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}
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std::fseek(this->file, 112, SEEK_SET);
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std::fwrite(this->sections, sizeof(this->sections), 1, this->file);
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return 1;
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}
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default:
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return 0;
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}
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}
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// OFFSET: 0x00B85A20
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// FUNCTION: fn_19328
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std::vector<unsigned char> Replay::BuildMetadata() {
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std::vector<unsigned char> metadata;
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{
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const auto record = BuildReplayTaggedRecord(950, nullptr, 0);
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metadata.insert(metadata.end(), record.begin(), record.end());
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}
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{
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const auto record = BuildReplayTaggedRecord(961, &this->header.service, sizeof(this->header.service));
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metadata.insert(metadata.end(), record.begin(), record.end());
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}
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{
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const auto record = BuildReplayTaggedRecord(962, &this->header.serviceType, sizeof(this->header.serviceType));
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metadata.insert(metadata.end(), record.begin(), record.end());
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}
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{
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const auto record = BuildReplayTaggedRecord(963, &this->header.unknown_0014, sizeof(this->header.unknown_0014));
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metadata.insert(metadata.end(), record.begin(), record.end());
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}
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{
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const auto record = BuildReplayTaggedRecord(964, this->header.characterName, sizeof(this->header.characterName));
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metadata.insert(metadata.end(), record.begin(), record.end());
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}
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{
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const auto record = BuildReplayTaggedRecord(965, this->header.mapName, sizeof(this->header.mapName));
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metadata.insert(metadata.end(), record.begin(), record.end());
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}
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{
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const auto record = BuildReplayTaggedRecord(966, &this->header.accountId, sizeof(this->header.accountId));
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metadata.insert(metadata.end(), record.begin(), record.end());
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}
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{
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const auto record = BuildReplayTaggedRecord(967, &this->header.cellX, sizeof(this->header.cellX));
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metadata.insert(metadata.end(), record.begin(), record.end());
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}
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{
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const auto record = BuildReplayTaggedRecord(968, &this->header.cellY, sizeof(this->header.cellY));
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metadata.insert(metadata.end(), record.begin(), record.end());
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}
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{
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const auto record = BuildReplayTaggedRecord(969, &this->header.unknown_0078, sizeof(this->header.unknown_0078));
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metadata.insert(metadata.end(), record.begin(), record.end());
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}
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{
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const auto record = BuildReplayTaggedRecord(970, &this->header.duration, sizeof(this->header.duration));
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metadata.insert(metadata.end(), record.begin(), record.end());
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}
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{
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const auto record = BuildReplayTaggedRecord(971, &this->header.records, sizeof(this->header.records));
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metadata.insert(metadata.end(), record.begin(), record.end());
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}
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{
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const auto record = BuildReplayTaggedRecord(972, &this->header.fileOffset, sizeof(this->header.fileOffset));
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metadata.insert(metadata.end(), record.begin(), record.end());
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}
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{
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const auto record = BuildReplayTaggedRecord(973, &this->header.options, sizeof(this->header.options));
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metadata.insert(metadata.end(), record.begin(), record.end());
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}
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{
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const auto record = BuildReplayTaggedRecord(960, &this->header.closingSignature, sizeof(this->header.closingSignature));
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metadata.insert(metadata.end(), record.begin(), record.end());
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}
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{
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const auto record = BuildReplayTaggedRecord(951, nullptr, 0);
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metadata.insert(metadata.end(), record.begin(), record.end());
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}
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return metadata;
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}
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// OFFSET: 0x00B875E0
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// FUNCTION: fn_19354
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Replay& Replay::Instance() {
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// GLOBAL: gl_24631
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static Replay g_replay;
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return g_replay;
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}
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