mirror of https://github.com/PrimeDecomp/prime.git
131 lines
3.3 KiB
C++
131 lines
3.3 KiB
C++
#ifndef _CINPUTSTREAM
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#define _CINPUTSTREAM
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#include "types.h"
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#include "stddef.h"
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class CInputStream;
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template < typename T >
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struct TType {};
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template < typename T >
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T cinput_stream_helper(const TType< T >& type, CInputStream& in);
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class CInputStream {
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public:
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CInputStream(int len);
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CInputStream(const void* ptr, int len, bool owned);
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virtual ~CInputStream();
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virtual size_t Read(void* dest, size_t len) = 0;
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float ReadFloat();
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u64 ReadLongLong();
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uint ReadLong();
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ushort ReadShort();
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bool ReadBool();
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uchar ReadChar();
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uint ReadBits(uint len);
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size_t ReadBytes(void* dest, size_t len);
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void Get(void* dest, unsigned long len);
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template < typename T >
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inline T Get(const TType< T >& type = TType< T >()) {
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return cinput_stream_helper(type, *this);
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}
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bool ReadPackedBool() { return ReadBits(1) != 0; }
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// TODO: this cast to uint fixes regalloc in
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// CIEKeyframeEmitter / rstl::vector(CInputStream&)
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// why?
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int ReadInt32() { return static_cast< uint >(Get(TType< int >())); }
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uint GetBlockOffset() const { return x4_blockOffset; }
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private:
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bool GrabAnotherBlock();
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bool InternalReadNext();
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uint x4_blockOffset;
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uint x8_blockLen;
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uint xc_len;
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uchar* x10_ptr;
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bool x14_owned;
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uint x18_readPosition;
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uint x1c_bitWord;
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uint x20_bitOffset;
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};
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template <typename T>
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inline T cinput_stream_helper(const TType<T>& type, CInputStream& in) {
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return T(in);
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}
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template <>
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inline bool cinput_stream_helper(const TType< bool >& type, CInputStream& in) {
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return in.ReadBool();
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}
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template <>
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inline char cinput_stream_helper(const TType< char >& type, CInputStream& in) {
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return in.ReadChar();
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}
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template <>
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inline int cinput_stream_helper(const TType< int >& type, CInputStream& in) {
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return in.ReadLong();
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}
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template <>
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inline uint cinput_stream_helper(const TType< uint >& type, CInputStream& in) {
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return in.ReadLong();
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}
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template <>
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inline unsigned long cinput_stream_helper(const TType< unsigned long >& type, CInputStream& in) {
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return in.ReadLong();
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}
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template <>
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inline float cinput_stream_helper(const TType< float >& type, CInputStream& in) {
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return in.ReadFloat();
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}
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template <>
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inline short cinput_stream_helper(const TType< short >& type, CInputStream& in) {
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return in.ReadShort();
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}
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template <>
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inline ushort cinput_stream_helper(const TType< ushort >& type, CInputStream& in) {
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return in.ReadShort();
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}
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// rstl
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#include "rstl/pair.hpp"
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template < typename L, typename R >
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inline rstl::pair< L, R > cinput_stream_helper(const TType< rstl::pair< L, R > >& type,
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CInputStream& in) {
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rstl::pair< L, R > result;
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result.first = in.Get(TType< L >());
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result.second = in.Get(TType< R >());
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return result;
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}
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#include "rstl/vector.hpp"
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template < typename T, typename Alloc >
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inline rstl::vector< T, Alloc >::vector(CInputStream& in, const Alloc& allocator)
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: x4_count(0), x8_capacity(0), xc_items(nullptr) {
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int count = in.ReadInt32();
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reserve(count);
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for (int i = 0; i < count; i++) {
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push_back(in.Get(TType< T >()));
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}
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}
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#include "rstl/reserved_vector.hpp"
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template < typename T, int N >
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inline rstl::reserved_vector< T, N >::reserved_vector(CInputStream& in)
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: x0_count(in.ReadInt32()) {
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for (int i = 0; i < x0_count; i++) {
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construct(&data()[i], in.Get(TType< T >()));
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}
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}
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#endif // _CINPUTSTREAM
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