mirror of https://github.com/bsnes-emu/bsnes.git
52 lines
1.2 KiB
C++
52 lines
1.2 KiB
C++
#ifndef NALL_STREAM_MEMORY_HPP
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#define NALL_STREAM_MEMORY_HPP
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#include <nall/stream/stream.hpp>
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namespace nall {
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struct memorystream : stream {
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using stream::read;
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using stream::write;
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memorystream() = default;
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memorystream(uint8* data, uint size) {
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pdata = data;
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psize = size;
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pwritable = true;
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}
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memorystream(const uint8* data, uint size) {
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pdata = (uint8*)data;
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psize = size;
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pwritable = false;
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}
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auto seekable() const -> bool { return true; }
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auto readable() const -> bool { return true; }
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auto writable() const -> bool { return pwritable; }
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auto randomaccess() const -> bool { return true; }
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auto data() const -> uint8* { return pdata; }
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auto size() const -> uint { return psize; }
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auto offset() const -> uint { return poffset; }
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auto seek(uint offset) const -> void { poffset = offset; }
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auto read() const -> uint8 { return pdata[poffset++]; }
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auto write(uint8 data) const -> void { pdata[poffset++] = data; }
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auto read(uint offset) const -> uint8 { return pdata[offset]; }
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auto write(uint offset, uint8 data) const -> void { pdata[offset] = data; }
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protected:
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mutable uint8* pdata = nullptr;
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mutable uint psize = 0;
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mutable uint poffset = 0;
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mutable bool pwritable = false;
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};
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}
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#endif
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