ubergames/lilium-voyager
0
0
Fork 0
mirror of https://github.com/UberGames/lilium-voyager.git synced 2024-11-14 00:10:39 +00:00
Code Issues Projects Releases Packages Wiki Activity

* Fixed a bug with QVM loading on big endian architectures

Browse source
This commit is contained in:
Tim Angus 2005-10-26 17:09:50 +00:00
parent d5af2e3d45
commit 9f55ae2dce
1 changed files with 29 additions and 20 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

35
code/qcommon/vm.c
View file

@ -373,16 +373,16 @@ vmHeader_t *VM_LoadQVM( vm_t *vm, qboolean alloc ) {
return NULL; return NULL;
} }
if( LittleLong( header->vmMagic ) == VM_MAGIC_VER2 ) {
Com_Printf( "...which has vmMagic VM_MAGIC_VER2\n" );
// byte swap the header // byte swap the header
for ( i = 0 ; i < sizeof( *header ) / 4 ; i++ ) { for ( i = 0 ; i < sizeof( vmHeader_t ) / 4 ; i++ ) {
((int *)header)[i] = LittleLong( ((int *)header)[i] ); ((int *)header)[i] = LittleLong( ((int *)header)[i] );
} }
if( header->vmMagic == VM_MAGIC_VER2 ) {
Com_Printf( "...which has vmMagic VM_MAGIC_VER2\n" );
// validate // validate
if ( header->vmMagic != VM_MAGIC_VER2 if ( header->jtrgLength < 0
|| header->jtrgLength < 0
|| header->bssLength < 0 || header->bssLength < 0
|| header->dataLength < 0 || header->dataLength < 0
|| header->litLength < 0 || header->litLength < 0
@ -390,16 +390,25 @@ vmHeader_t *VM_LoadQVM( vm_t *vm, qboolean alloc ) {
VM_Free( vm ); VM_Free( vm );
Com_Error( ERR_FATAL, "%s has bad header", filename ); Com_Error( ERR_FATAL, "%s has bad header", filename );
} }
} else if( LittleLong( header->vmMagic ) == VM_MAGIC ) {
// byte swap the header
// sizeof( vmHeader_t ) - sizeof( int ) is the 1.32b vm header size
for ( i = 0 ; i < ( sizeof( vmHeader_t ) - sizeof( int ) ) / 4 ; i++ ) {
((int *)header)[i] = LittleLong( ((int *)header)[i] );
}
// validate
if ( header->bssLength < 0
|| header->dataLength < 0
|| header->litLength < 0
|| header->codeLength <= 0 ) {
VM_Free( vm );
Com_Error( ERR_FATAL, "%s has bad header", filename );
}
} else { } else {
// validate
if ( header->vmMagic != VM_MAGIC
|| header->bssLength < 0
|| header->dataLength < 0
|| header->litLength < 0
|| header->codeLength <= 0 ) {
VM_Free( vm ); VM_Free( vm );
Com_Error( ERR_FATAL, "%s has bad header", filename ); Com_Error( ERR_FATAL, "%s does not have a recognisable "
} "magic number in its header", filename );
} }
// round up to next power of 2 so all data operations can // round up to next power of 2 so all data operations can