mirror of https://github.com/bsnes-emu/bsnes.git
48 lines
1.2 KiB
C++
Executable File
48 lines
1.2 KiB
C++
Executable File
#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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bool seekable() const { return true; }
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bool readable() const { return true; }
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bool writable() const { return pwritable; }
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bool randomaccess() const { return true; }
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uint8_t *data() const { return pdata; }
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unsigned size() const { return psize; }
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unsigned offset() const { return poffset; }
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void seek(unsigned offset) const { poffset = offset; }
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uint8_t read() const { return pdata[poffset++]; }
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void write(uint8_t data) const { pdata[poffset++] = data; }
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uint8_t read(unsigned offset) const { return pdata[offset]; }
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void write(unsigned offset, uint8_t data) const { pdata[offset] = data; }
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memorystream() : pdata(nullptr), psize(0), poffset(0), pwritable(true) {}
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memorystream(uint8_t *data, unsigned size) {
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pdata = data, psize = size, poffset = 0;
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pwritable = true;
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}
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memorystream(const uint8_t *data, unsigned size) {
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pdata = (uint8_t*)data, psize = size, poffset = 0;
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pwritable = false;
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}
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protected:
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mutable uint8_t *pdata;
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mutable unsigned psize, poffset, pwritable;
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};
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}
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#endif
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