SDLNet_Read16() and SDLNet_Read32() only works when aligned

[jsaak]

char buffer[128];
Uint16 good = SDLNet_Read16(buff+2);
Uint16 wrong = SDLNet_Read16(buff+3);

when not aligned, then they use invalid bytes

[jsaak]

compiling with -DSDL_DATA_ALIGNED=1 does work, but this is a workaround a proper fix is needed

[jbaicoianu]

Is this something that affects SDL2_net natively as well, or is this bug specific to the Emscripten port?

[jsaak]

Emscripten port only i think

from SDL_net.h

/* Warning, some systems have data access alignment restrictions */
#if defined(sparc) || defined(mips) || defined(__arm__)
#define SDL_DATA_ALIGNED    1
#endif
#ifndef SDL_DATA_ALIGNED
#define SDL_DATA_ALIGNED    0
#endif