JKRDecomp.h

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#ifndef JKRDECOMP_H
#define JKRDECOMP_H
 
#include "JSystem/JKernel/JKRCompression.h"
#include "JSystem/JKernel/JKRThread.h"
 
class JKRAMCommand;
 
class JKRDecompCommand {
public:
    typedef void (*AsyncCallback)(u32);
 
    JKRDecompCommand();
    ~JKRDecompCommand();
 
public:
    /* 0x00 */ u32 field_0x0;
    /* 0x04 */ u8* mSrcBuffer;
    /* 0x08 */ u8* mDstBuffer;
    /* 0x0C */ u32 mSrcLength;
    /* 0x10 */ u32 mDstLength;
    /* 0x14 */ AsyncCallback mCallback;
    /* 0x18 */ JKRDecompCommand* mThis;
    /* 0x1C */ OSMessageQueue* field_0x1c;
    /* 0x20 */ s32 field_0x20;
    /* 0x24 */ JKRAMCommand* mAMCommand;
    /* 0x28 */ OSMessageQueue mMessageQueue;
    /* 0x48 */ OSMessage mMessage;
};
 
#define JKRDECOMP_SYNC_BLOCKING 0
#define JKRDECOMP_SYNC_NON_BLOCKING 1
 
class JKRDecomp : public JKRThread {
private:
    JKRDecomp(s32);
    virtual ~JKRDecomp();
 
    /* vt[03] */ virtual void* run(); /* override */
 
public:
    static JKRDecomp* create(s32);
    static JKRDecompCommand* prepareCommand(u8*, u8*, u32, u32, JKRDecompCommand::AsyncCallback);
    static void sendCommand(JKRDecompCommand*);
    static bool sync(JKRDecompCommand*, int);
    static JKRDecompCommand* orderAsync(u8*, u8*, u32, u32, JKRDecompCommand::AsyncCallback);
    static bool orderSync(u8*, u8*, u32, u32);
    static void decode(u8*, u8*, u32, u32);
    static void decodeSZP(u8*, u8*, u32, u32);
    static void decodeSZS(u8*, u8*, u32, u32);
    static JKRCompression checkCompressed(u8*);
 
    static JKRDecomp* sDecompObject;
    static OSMessage sMessageBuffer[8];
    static OSMessageQueue sMessageQueue;
};
 
inline void JKRDecompress(u8* srcBuffer, u8* dstBuffer, u32 srcLength, u32 dstLength) {
    JKRDecomp::orderSync(srcBuffer, dstBuffer, srcLength, dstLength);
}
 
inline JKRDecomp* JKRCreateDecompManager(s32 priority) {
    return JKRDecomp::create(priority);
}
 
inline JKRCompression JKRCheckCompressed_noASR(u8 *pBuf) {
    JKRCompression compression = JKRDecomp::checkCompressed(pBuf);
    if (compression == COMPRESSION_ASR) // ternary i had before was either incorrect, or was not a ternary at all
        compression = COMPRESSION_NONE;
    return compression;
}
 
inline u32 JKRDecompExpandSize(u8* pBuf) {
    return (pBuf[4] << 0x18) | (pBuf[5] << 0x10) | (pBuf[6] << 8) | pBuf[7];
}
 
#endif /* JKRDECOMP_H */