void Texture_CreateRomLump(d64RawTexture_t *tex, cache data)
{
int size = 0;
int palsize = 0;
int mask = 0;
int i = 0;
int *tmpSrc;
memset(tex, 0, sizeof(d64RawTexture_t));
memcpy(&tex->header, data, sizeof(d64RawTextureHeader_t));
tex->header.hshift = _SWAP16(tex->header.hshift);
tex->header.id = _SWAP16(tex->header.id);
tex->header.numpal = _SWAP16(tex->header.numpal);
tex->header.wshift = _SWAP16(tex->header.wshift);
size = ((1<<tex->header.wshift) * (1<<tex->header.hshift))>>1;
mask = (1<<tex->header.wshift) / 8;
_PAD8(size);
tex->data = (byte*)Mem_Alloc(size);
memcpy(tex->data, data + (sizeof(d64RawTextureHeader_t)), size);
palsize = sizeof(short) * (NUMTEXPALETTES * tex->header.numpal);
tex->palette = (word*)Mem_Alloc(palsize);
memcpy(tex->palette, data + (sizeof(d64RawTextureHeader_t) + size), palsize);
// Flip nibbles per byte
for(i = 0; i < size; i++)
{
byte tmp = tex->data[i];
tex->data[i] = (tmp >> 4);
tex->data[i] |= ((tmp & 0xf) << 4);
}
tmpSrc = (int*)(tex->data);
// Flip each sets of dwords based on texture width
for(i = 0; i < size/4; i+=2)
{
int x1;
int x2;
if(i & mask)
{
x1 = *(int*)(tmpSrc+i);
x2 = *(int*)(tmpSrc+i+1);
*(int*)(tmpSrc+i) = x2;
*(int*)(tmpSrc+i+1) = x1;
}
}
}
uint16_t _swap16(uint16_t value)
{
return _SWAP16(value);
}
