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