diff options
Diffstat (limited to 'code/qcommon/vm.c')
-rw-r--r-- | code/qcommon/vm.c | 72 |
1 files changed, 40 insertions, 32 deletions
diff --git a/code/qcommon/vm.c b/code/qcommon/vm.c index c2efcd2..dceec4a 100644 --- a/code/qcommon/vm.c +++ b/code/qcommon/vm.c @@ -218,7 +218,11 @@ VM_LoadSymbols */ void VM_LoadSymbols( vm_t *vm ) { int len; - char *mapfile, *text_p, *token; + union { + char *c; + void *v; + } mapfile; + char *text_p, *token; char name[MAX_QPATH]; char symbols[MAX_QPATH]; vmSymbol_t **prev, *sym; @@ -235,8 +239,8 @@ void VM_LoadSymbols( vm_t *vm ) { COM_StripExtension(vm->name, name, sizeof(name)); Com_sprintf( symbols, sizeof( symbols ), "vm/%s.map", name ); - len = FS_ReadFile( symbols, (void **)&mapfile ); - if ( !mapfile ) { + len = FS_ReadFile( symbols, &mapfile.v ); + if ( !mapfile.c ) { Com_Printf( "Couldn't load symbol file: %s\n", symbols ); return; } @@ -244,7 +248,7 @@ void VM_LoadSymbols( vm_t *vm ) { numInstructions = vm->instructionPointersLength >> 2; // parse the symbols - text_p = mapfile; + text_p = mapfile.c; prev = &vm->symbols; count = 0; @@ -291,7 +295,7 @@ void VM_LoadSymbols( vm_t *vm ) { vm->numSymbols = count; Com_Printf( "%i symbols parsed from %s\n", count, symbols ); - FS_FreeFile( mapfile ); + FS_FreeFile( mapfile.v ); } /* @@ -364,47 +368,50 @@ vmHeader_t *VM_LoadQVM( vm_t *vm, qboolean alloc ) { int dataLength; int i; char filename[MAX_QPATH]; - vmHeader_t *header; + union { + vmHeader_t *h; + void *v; + } header; // load the image Com_sprintf( filename, sizeof(filename), "vm/%s.qvm", vm->name ); Com_Printf( "Loading vm file %s...\n", filename ); - length = FS_ReadFile( filename, (void **)&header ); - if ( !header ) { + length = FS_ReadFile( filename, &header.v ); + if ( !header.h ) { Com_Printf( "Failed.\n" ); VM_Free( vm ); return NULL; } - if( LittleLong( header->vmMagic ) == VM_MAGIC_VER2 ) { + if( LittleLong( header.h->vmMagic ) == VM_MAGIC_VER2 ) { Com_Printf( "...which has vmMagic VM_MAGIC_VER2\n" ); // byte swap the header for ( i = 0 ; i < sizeof( vmHeader_t ) / 4 ; i++ ) { - ((int *)header)[i] = LittleLong( ((int *)header)[i] ); + ((int *)header.h)[i] = LittleLong( ((int *)header.h)[i] ); } // validate - if ( header->jtrgLength < 0 - || header->bssLength < 0 - || header->dataLength < 0 - || header->litLength < 0 - || header->codeLength <= 0 ) { + if ( header.h->jtrgLength < 0 + || header.h->bssLength < 0 + || header.h->dataLength < 0 + || header.h->litLength < 0 + || header.h->codeLength <= 0 ) { VM_Free( vm ); Com_Error( ERR_FATAL, "%s has bad header", filename ); } - } else if( LittleLong( header->vmMagic ) == VM_MAGIC ) { + } else if( LittleLong( header.h->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] ); + ((int *)header.h)[i] = LittleLong( ((int *)header.h)[i] ); } // validate - if ( header->bssLength < 0 - || header->dataLength < 0 - || header->litLength < 0 - || header->codeLength <= 0 ) { + if ( header.h->bssLength < 0 + || header.h->dataLength < 0 + || header.h->litLength < 0 + || header.h->codeLength <= 0 ) { VM_Free( vm ); Com_Error( ERR_FATAL, "%s has bad header", filename ); } @@ -416,7 +423,7 @@ vmHeader_t *VM_LoadQVM( vm_t *vm, qboolean alloc ) { // round up to next power of 2 so all data operations can // be mask protected - dataLength = header->dataLength + header->litLength + header->bssLength; + dataLength = header.h->dataLength + header.h->litLength + header.h->bssLength; for ( i = 0 ; dataLength > ( 1 << i ) ; i++ ) { } dataLength = 1 << i; @@ -431,33 +438,34 @@ vmHeader_t *VM_LoadQVM( vm_t *vm, qboolean alloc ) { } // copy the intialized data - Com_Memcpy( vm->dataBase, (byte *)header + header->dataOffset, header->dataLength + header->litLength ); + Com_Memcpy( vm->dataBase, (byte *)header.h + header.h->dataOffset, + header.h->dataLength + header.h->litLength ); // byte swap the longs - for ( i = 0 ; i < header->dataLength ; i += 4 ) { + for ( i = 0 ; i < header.h->dataLength ; i += 4 ) { *(int *)(vm->dataBase + i) = LittleLong( *(int *)(vm->dataBase + i ) ); } - if( header->vmMagic == VM_MAGIC_VER2 ) { - vm->numJumpTableTargets = header->jtrgLength >> 2; + if( header.h->vmMagic == VM_MAGIC_VER2 ) { + vm->numJumpTableTargets = header.h->jtrgLength >> 2; Com_Printf( "Loading %d jump table targets\n", vm->numJumpTableTargets ); if( alloc ) { - vm->jumpTableTargets = Hunk_Alloc( header->jtrgLength, h_high ); + vm->jumpTableTargets = Hunk_Alloc( header.h->jtrgLength, h_high ); } else { - Com_Memset( vm->jumpTableTargets, 0, header->jtrgLength ); + Com_Memset( vm->jumpTableTargets, 0, header.h->jtrgLength ); } - Com_Memcpy( vm->jumpTableTargets, (byte *)header + header->dataOffset + - header->dataLength + header->litLength, header->jtrgLength ); + Com_Memcpy( vm->jumpTableTargets, (byte *)header.h + header.h->dataOffset + + header.h->dataLength + header.h->litLength, header.h->jtrgLength ); // byte swap the longs - for ( i = 0 ; i < header->jtrgLength ; i += 4 ) { + for ( i = 0 ; i < header.h->jtrgLength ; i += 4 ) { *(int *)(vm->jumpTableTargets + i) = LittleLong( *(int *)(vm->jumpTableTargets + i ) ); } } - return header; + return header.h; } /* |