Function CopyLineSwap32

Source/HLEGraphics/RDPStateManager.cpp:265–310

}

static inline void CopyLineSwap32(void * dst, const void * src, u32 bytes)
{
	u32* src32 {(u32*)(src)};
	u32* dst32 {(u32*)(dst)};

#ifdef FAST_TMEM_COPY
	DAEDALUS_ASSERT((bytes&0x7)==0, "CopyLineSwap32: Remaning bytes! (%d)",bytes);

	if( ((uintptr_t)src32&0x3 )==0)
	{
		u32 size128 {bytes >> 4};

		while (size128--)
		{
			dst32[0] = BSWAP32(src32[2]);
			dst32[1] = BSWAP32(src32[3]);
			dst32[2] = BSWAP32(src32[0]);
			dst32[3] = BSWAP32(src32[1]);
			dst32 += 4;
			src32 += 4;
		}

		// Copy any remaining quadword
		bytes&=0xF;
		while(bytes--)
		{
			*(u32*)((uintptr_t)dst32++ ^ 0x8) = BSWAP32(src32[0]);
			*(u32*)((uintptr_t)dst32++ ^ 0x8) = BSWAP32(src32[1]);
			src32+=2;
		}
	}
	else
#endif
	{
		// Have yet to see game with unaligned copies here
		//DBGConsole_Msg(0, "[WWarning CopyLineSwap32: Performing slow copy]" );

		u8* src8 {(u8*)src32};
		u8* dst8 {(u8*)dst32};
		while(bytes--)
		{
			// Alternate 64 bit words are swapped
			*(u8*)((uintptr_t)dst8++ ^ 0x8) = *(u8*)((uintptr_t)src8++ ^ U8_TWIDDLE);
		}
	}
}
#endif