a47d20f8be
Administrative source import: native x86 compilation passed for 423 authored units. Source placement and submission states are migrated separately; this commit does not imply peer acceptance.
Previous head: 35d2a8cb36
Payload SHA256: 592f016d2730c5593bb653aa054c1e5f76a6df72c8f5a09e66f74876e2e33dee
93 lines
2.3 KiB
C++
93 lines
2.3 KiB
C++
#include "Archive/PakFile.h"
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// OFFSET: 0x005EF660
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// FUNCTION: fn_04009
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CPakFile::~CPakFile() = default;
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namespace myGPack {
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// OFFSET: 0x005F7790
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// FUNCTION: fn_04046
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CReadPakFile::CReadPakFile() : m_handle(INVALID_HANDLE_VALUE), m_size(0) {
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}
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// OFFSET: 0x005EF690
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// FUNCTION: fn_04010
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CReadPakFile::~CReadPakFile() {
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this->Close();
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}
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// OFFSET: 0x005EF710
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// FUNCTION: fn_04011
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CWritePakFile::~CWritePakFile() = default;
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// OFFSET: 0x005F7780
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std::uint64_t CReadPakFile::GetSize() const {
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return this->m_size;
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}
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// OFFSET: 0x005F7810
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// FUNCTION: fn_04047
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void CReadPakFile::Close() {
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if (this->m_handle) {
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CloseHandle(this->m_handle);
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this->m_handle = nullptr;
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}
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}
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// OFFSET: 0x005F7890
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// FUNCTION: fn_04048
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bool CWritePakFile::Open(const char* filename) {
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this->m_handle = CreateFileA(filename, GENERIC_READ | GENERIC_WRITE, 0, nullptr, OPEN_ALWAYS, FILE_FLAG_WRITE_THROUGH | FILE_ATTRIBUTE_NORMAL, nullptr);
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if (this->m_handle == INVALID_HANDLE_VALUE) {
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return false;
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}
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LARGE_INTEGER size;
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GetFileSizeEx(this->m_handle, &size);
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this->m_size = static_cast<std::uint64_t>(size.QuadPart);
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return true;
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}
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// OFFSET: 0x005F78F0
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// FUNCTION: fn_04049
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std::uint8_t* CReadPakFile::Read(std::uint64_t offset, std::uint32_t length) {
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if (offset + length > this->m_size) {
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return nullptr;
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}
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this->m_buffer.resize(length);
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LARGE_INTEGER position;
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position.QuadPart = static_cast<std::int64_t>(offset);
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SetFilePointerEx(this->m_handle, position, nullptr, FILE_BEGIN);
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DWORD read;
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if (ReadFile(this->m_handle, this->m_buffer.data(), length, &read, nullptr) && read == length) {
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return this->m_buffer.data();
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}
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return nullptr;
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}
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// OFFSET: 0x005F79C0
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// FUNCTION: fn_04050
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bool CWritePakFile::Write(std::uint64_t offset, const void* bytes, std::uint32_t length) {
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LARGE_INTEGER position;
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position.QuadPart = static_cast<std::int64_t>(offset);
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SetFilePointerEx(this->m_handle, position, nullptr, FILE_BEGIN);
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DWORD written;
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if (!WriteFile(this->m_handle, bytes, length, &written, nullptr) || written != length) {
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return false;
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}
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std::uint64_t end = offset + length;
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if (this->m_size < end) {
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this->m_size = end;
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}
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return true;
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}
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}
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