Support PSX map format in viewer and map image generator

[haleyjd]

The PlayStation port's map format is pretty simple. It only differs from the PC and other console ports in two respects as far as IO goes: VERTEXES are 8 bytes, consisting of two little-endian 32-bit fixed_t x,y coords rather than the two shorts in vanilla. Then there's the SECTORS record:

int16_t floorheight;
int16_t ceilingheight;
char floorpic[8];
char ceilingpic[8];
byte lightlevel;
byte color; // this is an index into the LIGHTS lump.
int16_t special;
int16_t tag;
int16_t unknown; // it is possible this is two separate byte fields; best conjecture: related to reverb.

Now, how to tell if a map is PSX format from the directory layout? Very simple: if BLOCKMAP is followed by "LEAFS", and LEAFS is not followed by "LIGHTS", then it is a PSX format map (if LIGHTS and MACROS are present, it is a Doom 64 map instead, which while that would also be nice, is not part of this request).

[Gaerzi]

"Raw" Doom 64 maps would probably not be supported because it'd conflict with the existing support for Doom64 EX support.

PSX map support is certainly possible. Especially if, in a first time at least, it's limited to preview (which only use vertices, linedefs, and things).

[Danfun64]

Why just the psx map format? What about the other pre xbox console versions of doom (Jaguar, 32x, GBA, Saturn and 3DO)?

[haleyjd]

Because none of those use a different map format.

Except Saturn, because it uses the same format as PSX.