Created
December 14, 2013 16:31
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XP3 読込み修正コード
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//--------------------------------------------------------------------------- | |
tjs_int16 tTVPXP3Archive::ReadI16FromMem(const tjs_uint8 *mem) | |
{ | |
#if 0 | |
return (tjs_int16)mem[0] + ((tjs_int16)mem[1] << 8); | |
#else | |
tjs_uint16 ret = (tjs_uint16)mem[0] | ((tjs_uint16)mem[1] << 8); | |
return (tjs_int16)ret; | |
#endif | |
} | |
//--------------------------------------------------------------------------- | |
tjs_int32 tTVPXP3Archive::ReadI32FromMem(const tjs_uint8 *mem) | |
{ | |
#if 0 | |
return (tjs_int32)mem[0] + ((tjs_int32)mem[1] << 8) + | |
((tjs_int32)mem[2] << 16) + ((tjs_int32)mem[3] << 24); | |
#else | |
tjs_uint32 ret = (tjs_uint32)mem[0] | ((tjs_uint32)mem[1] << 8) | | |
((tjs_uint32)mem[2] << 16) | ((tjs_uint32)mem[3] << 24); | |
return (tjs_int32)ret; | |
#endif | |
} | |
//--------------------------------------------------------------------------- | |
tjs_int64 tTVPXP3Archive::ReadI64FromMem(const tjs_uint8 *mem) | |
{ | |
#if 0 | |
tjs_int32 low = ReadI32FromMem(mem); | |
tjs_int32 high = ReadI32FromMem(mem + 4); | |
return ((tjs_int64)high << 32) | ((tjs_int64)low); | |
#else | |
tjs_uint64 ret = (tjs_uint64)mem[0] | ((tjs_uint64)mem[1] << 8) | | |
((tjs_uint64)mem[2] << 16) | ((tjs_uint64)mem[3] << 24) | | |
((tjs_uint64)mem[4] << 32) | ((tjs_uint64)mem[5] << 40) | | |
((tjs_uint64)mem[6] << 48) | ((tjs_uint64)mem[7] << 56); | |
return (tjs_int64)ret; | |
#endif | |
} | |
//--------------------------------------------------------------------------- |
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