quake: fix unaligned accesses in model.c

Allows playing registered episodes.

Change-Id: I20e1ca2000776a19767a9c3caef790d4f62ca188

1 files changed, 23 insertions, 6 deletions

diff --git a/apps/plugins/sdl/progs/quake/common.h b/apps/plugins/sdl/progs/quake/common.h
index a1ac227aff..8c6ab3a2dc 100644
--- a/apps/plugins/sdl/progs/quake/common.h
+++ b/apps/plugins/sdl/progs/quake/common.h
@@ -88,12 +88,29 @@ void InsertLinkAfter (link_t *l, link_t *after);
 
 extern  qboolean                bigendien;
 
-extern  short   (*BigShort) (short l);
-extern  short   (*LittleShort) (short l);
-extern  int     (*BigLong) (int l);
-extern  int     (*LittleLong) (int l);
-extern  float   (*BigFloat) (float l);
-extern  float   (*LittleFloat) (float l);
+// not safe on unaligned data 
+extern  short   (*BigShort) (short l);
+extern  short   (*LittleShort) (short l);
+extern  int     (*BigLong) (int l);
+extern  int     (*LittleLong) (int l);
+extern  float   (*BigFloat) (float l);
+extern  float   (*LittleFloat) (float l);
+
+#define LittleShortUnaligned(x) ReadLittleShort(((char*)(&(x))))
+#define BigShortUnaligned(x) ReadBigShort(((char*)&(x)))
+#define LittleLongUnaligned(x) ReadLittleLong(((char*)&(x)))
+#define BigLongUnaligned(x) ReadBigLong(((char*)&(x)))
+#define LittleFloatUnaligned(x) ReadLittleFloat(((char*)&(x)))
+#define BigFloatUnaligned(x) ReadBigFloat(((char*)&(x))
+
+
+// for unaligned
+short   ReadBigShort (char *l);
+short   ReadLittleShort (char *l);
+int     ReadBigLong (char *l);
+int     ReadLittleLong (char *l);
+float   ReadBigFloat (char *l);
+float   ReadLittleFloat (char *l);
 
 //============================================================================