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// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
// SPDX-License-Identifier: GPL-3.0-or-later
#include <cstring>
#include "common/zbic_compression.h"
#define ZSTD_ZBIC_SUPPORT 1
#define ZSTDLIB_VISIBLE static
#define ZSTDLIB_HIDDEN static
#define ZSTDERRORLIB_VISIBLE static
#define ZSTDERRORLIB_HIDDEN static
#undef ZSTD_MULTITHREAD
#if defined(__ANDROID__)
#undef _GNU_SOURCE
#endif
#include "zstd.h"
#define g_ZSTD_threading_useless_symbol g_ZSTD_zbic_threading_useless_symbol
#include "zstd.c"
#undef g_ZSTD_threading_useless_symbol
namespace Common::Compression {
bool IsZBIC(std::span<const u8> src) {
if (src.size() < sizeof(u32)) {
return false;
}
u32 magic = 0;
std::memcpy(&magic, src.data(), sizeof(u32));
return magic == ZSTD_MAGICNUMBER; // 0x4349425A ("ZBIC")
}
int DecompressDataZBIC(std::span<u8> dst, std::span<const u8> src) {
if (dst.empty() || src.empty()) {
return -1;
}
const size_t res = ZSTD_decompress(dst.data(), dst.size(), src.data(), src.size());
if (ZSTD_isError(res)) {
return -1;
}
return static_cast<int>(res);
}
} // namespace Common::Compression
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