isle/LEGO1/legostream.h
Mark Langen 91c3ed3e70
100% match of many functions in the LegoGameState::Save codepath (#86)
* Only include decomps

* One more function

* Add offset to endOfVariables

* Remove leftover header

* Use undefined where applicable

* Fixes, refactorings

* Fixes

* Fix calling convention

* Added offset comment

---------

Co-authored-by: Christian Semmler <mail@csemmler.com>
2023-10-12 18:18:24 +02:00

79 lines
1.7 KiB
C++

#ifndef LEGOSTREAM_H
#define LEGOSTREAM_H
#include "compat.h"
#include "decomp.h"
#include "mxtypes.h"
#include <iosfwd>
#define LEGOSTREAM_MODE_READ 1
#define LEGOSTREAM_MODE_WRITE 2
class MxVariableTable;
// VTABLE 0x100d7d80
class LegoStream
{
public:
LegoStream() : m_mode(0) {}
inline virtual ~LegoStream() {};
virtual MxResult Read(void* p_buffer, MxU32 p_size) = 0;
virtual MxResult Write(const void* p_buffer, MxU32 p_size) = 0;
virtual MxResult Tell(MxU32* p_offset) = 0;
virtual MxResult Seek(MxU32 p_offset) = 0;
virtual MxBool IsWriteMode();
virtual MxBool IsReadMode();
enum OpenFlags
{
ReadBit = 1,
WriteBit = 2,
BinaryBit = 4,
};
static MxResult __stdcall WriteVariable(LegoStream* p_stream, MxVariableTable* p_from, const char* p_variableName);
static MxS32 __stdcall ReadVariable(LegoStream* p_stream, MxVariableTable* p_to);
protected:
MxU8 m_mode;
};
// VTABLE 0x100db730
class LegoFileStream : public LegoStream
{
public:
LegoFileStream();
virtual ~LegoFileStream();
MxResult Read(void* p_buffer, MxU32 p_size) override;
MxResult Write(const void* p_buffer, MxU32 p_size) override;
MxResult Tell(MxU32* p_offset) override;
MxResult Seek(MxU32 p_offset) override;
MxResult Open(const char* p_filename, OpenFlags p_mode);
private:
FILE *m_hFile;
};
// VTABLE 0x100db710
class LegoMemoryStream : public LegoStream
{
public:
LegoMemoryStream(char* p_buffer);
~LegoMemoryStream() {}
MxResult Read(void* p_buffer, MxU32 p_size) override;
MxResult Write(const void* p_buffer, MxU32 p_size) override;
MxResult Tell(MxU32* p_offset) override;
MxResult Seek(MxU32 p_offset) override;
private:
char *m_buffer;
MxU32 m_offset;
};
#endif // LEGOSTREAM_H