mirror of https://github.com/AxioDL/metaforce.git
27 lines
983 B
C++
27 lines
983 B
C++
#include "CZipInputStream.hpp"
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namespace metaforce {
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CZipInputStream::CZipInputStream(std::unique_ptr<CInputStream>&& strm)
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: CInputStream(4096), x24_compBuf(new u8[4096]), x28_strm(std::move(strm)) {
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x30_zstrm = std::make_unique<z_stream>();
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x30_zstrm->next_in = x24_compBuf.get();
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x30_zstrm->avail_in = 0;
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x30_zstrm->zalloc = [](void*, u32 c, u32 n) -> void* { return new u8[size_t{c} * size_t{n}]; };
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x30_zstrm->zfree = [](void*, void* buf) { delete[] static_cast<u8*>(buf); };
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inflateInit(x30_zstrm.get());
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}
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CZipInputStream::~CZipInputStream() { inflateEnd(x30_zstrm.get()); }
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u32 CZipInputStream::Read(void* buf, u32 len) {
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x30_zstrm->next_out = static_cast<Bytef*>(buf);
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x30_zstrm->avail_out = len;
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if (x30_zstrm->avail_in == 0) {
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x30_zstrm->avail_in = x28_strm->ReadBytes(x24_compBuf.get(), 4096);
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x30_zstrm->next_in = x24_compBuf.get();
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}
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inflate(x30_zstrm.get(), Z_NO_FLUSH);
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return len - x30_zstrm->avail_out;
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}
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} // namespace metaforce
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