mirror of
https://github.com/libretro/ppsspp.git
synced 2024-11-24 08:39:51 +00:00
94 lines
2.7 KiB
C++
94 lines
2.7 KiB
C++
// Copyright (c) 2013- PPSSPP Project.
|
|
|
|
// This program is free software: you can redistribute it and/or modify
|
|
// it under the terms of the GNU General Public License as published by
|
|
// the Free Software Foundation, version 2.0 or later versions.
|
|
|
|
// This program is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU General Public License 2.0 for more details.
|
|
|
|
// A copy of the GPL 2.0 should have been included with the program.
|
|
// If not, see http://www.gnu.org/licenses/
|
|
|
|
// Official git repository and contact information can be found at
|
|
// https://github.com/hrydgard/ppsspp and http://www.ppsspp.org/.
|
|
|
|
#include <fstream>
|
|
#include <string>
|
|
#include <cstring>
|
|
|
|
#include "Common/Log.h"
|
|
#include "Common/FileUtil.h"
|
|
#include "Core/Loaders.h"
|
|
#include "Core/ELF/PBPReader.h"
|
|
|
|
PBPReader::PBPReader(FileLoader *fileLoader) : file_(nullptr), header_(), isELF_(false) {
|
|
if (!fileLoader->Exists()) {
|
|
ERROR_LOG(LOADER, "Failed to open PBP file %s", fileLoader->Path().c_str());
|
|
return;
|
|
}
|
|
|
|
fileSize_ = (size_t)fileLoader->FileSize();
|
|
if (fileLoader->ReadAt(0, sizeof(header_), (u8 *)&header_) != sizeof(header_)) {
|
|
ERROR_LOG(LOADER, "PBP is too small to be valid: %s", fileLoader->Path().c_str());
|
|
return;
|
|
}
|
|
if (memcmp(header_.magic, "\0PBP", 4) != 0) {
|
|
if (memcmp(header_.magic, "\nFLE", 4) != 0) {
|
|
DEBUG_LOG(LOADER, "%s: File actually an ELF, not a PBP", fileLoader->Path().c_str());
|
|
isELF_ = true;
|
|
} else {
|
|
ERROR_LOG(LOADER, "Magic number in %s indicated no PBP: %s", fileLoader->Path().c_str(), header_.magic);
|
|
}
|
|
return;
|
|
}
|
|
|
|
DEBUG_LOG(LOADER, "Loading PBP, version = %08x", header_.version);
|
|
file_ = fileLoader;
|
|
}
|
|
|
|
bool PBPReader::GetSubFile(PBPSubFile file, std::vector<u8> *out) {
|
|
if (!file_) {
|
|
return false;
|
|
}
|
|
|
|
const size_t expected = GetSubFileSize(file);
|
|
const u32 off = header_.offsets[(int)file];
|
|
|
|
out->resize(expected);
|
|
size_t bytes = file_->ReadAt(off, expected, &(*out)[0]);
|
|
if (bytes != expected) {
|
|
ERROR_LOG(LOADER, "PBP file read truncated: %d -> %d", (int)expected, (int)bytes);
|
|
if (bytes < expected) {
|
|
out->resize(bytes);
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
void PBPReader::GetSubFileAsString(PBPSubFile file, std::string *out) {
|
|
if (!file_) {
|
|
out->clear();
|
|
return;
|
|
}
|
|
|
|
const size_t expected = GetSubFileSize(file);
|
|
const u32 off = header_.offsets[(int)file];
|
|
|
|
out->resize(expected);
|
|
size_t bytes = file_->ReadAt(off, expected, (void *)out->data());
|
|
if (bytes != expected) {
|
|
ERROR_LOG(LOADER, "PBP file read truncated: %d -> %d", (int)expected, (int)bytes);
|
|
if (bytes < expected) {
|
|
out->resize(bytes);
|
|
}
|
|
}
|
|
}
|
|
|
|
PBPReader::~PBPReader() {
|
|
// Does not take ownership.
|
|
file_ = nullptr;
|
|
}
|