mirror of https://github.com/AxioDL/metaforce.git
75 lines
1.8 KiB
C++
75 lines
1.8 KiB
C++
#pragma once
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#include <memory>
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#include "Runtime/GCNTypes.hpp"
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#include <athena/IStreamReader.hpp>
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#include <athena/IStreamWriter.hpp>
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#include <athena/MemoryReader.hpp>
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#include <athena/MemoryWriter.hpp>
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#ifdef URDE_ZIP_INPUT_STREAM
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#include <zlib.h>
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#endif
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namespace urde {
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using CInputStream = athena::io::IStreamReader;
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using COutputStream = athena::io::IStreamWriter;
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struct CBitStreamReader : athena::io::MemoryReader {
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u32 x1c_val = 0;
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u32 x20_bitOffset = 0;
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public:
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static constexpr u32 GetBitCount(u32 maxVal) {
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u32 ret = 0;
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while (maxVal != 0) {
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maxVal /= 2;
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ret++;
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}
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return ret;
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}
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CBitStreamReader(const void* data, atUint64 length) : MemoryReader(data, length) {}
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s32 ReadEncoded(u32 key);
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};
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class CBitStreamWriter : public athena::io::MemoryWriter {
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u32 x14_val = 0;
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u32 x18_bitOffset = 0x20;
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public:
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static constexpr u32 GetBitCount(u32 maxVal) { return CBitStreamReader::GetBitCount(maxVal); }
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explicit CBitStreamWriter(atUint8* data = nullptr, atUint64 length = 0x10) : MemoryWriter(data, length) {}
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void WriteEncoded(u32 val, u32 bitCount);
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void Flush();
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~CBitStreamWriter() override { Flush(); }
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};
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using CMemoryInStream = athena::io::MemoryReader;
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using CMemoryOutStream = athena::io::MemoryWriter;
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#ifdef URDE_ZIP_INPUT_STREAM
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class CZipInputStream : public CInputStream {
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std::unique_ptr<u8[]> x24_compBuf;
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std::unique_ptr<CInputStream> x28_strm;
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z_stream x30_zstrm = {};
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public:
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explicit CZipInputStream(std::unique_ptr<CInputStream>&& strm);
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~CZipInputStream() override;
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atUint64 readUBytesToBuf(void* buf, atUint64 len) override;
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void seek(atInt64, athena::SeekOrigin) override {}
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atUint64 position() const override { return 0; }
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atUint64 length() const override { return 0; }
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};
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#endif
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} // namespace urde
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