aboutsummaryrefslogtreecommitdiff
path: root/engines/sci
diff options
context:
space:
mode:
Diffstat (limited to 'engines/sci')
-rw-r--r--engines/sci/engine/kernel.cpp2
-rw-r--r--engines/sci/engine/script.cpp6
-rw-r--r--engines/sci/engine/script.h1
-rw-r--r--engines/sci/engine/seg_manager.cpp2
-rw-r--r--engines/sci/engine/vm.h2
5 files changed, 8 insertions, 5 deletions
diff --git a/engines/sci/engine/kernel.cpp b/engines/sci/engine/kernel.cpp
index c99bc4fe47..3a33c928e7 100644
--- a/engines/sci/engine/kernel.cpp
+++ b/engines/sci/engine/kernel.cpp
@@ -376,7 +376,7 @@ uint16 Kernel::findRegType(reg_t reg) {
case SEG_TYPE_SCRIPT:
if (reg.offset <= (*(Script *)mobj).getBufSize() &&
reg.offset >= -SCRIPT_OBJECT_MAGIC_OFFSET &&
- RAW_IS_OBJECT((*(Script *)mobj).getBuf(reg.offset)) ) {
+ (*(Script *)mobj).offsetIsObject(reg.offset)) {
result |= ((Script *)mobj)->getObject(reg.offset) ? SIG_TYPE_OBJECT : SIG_TYPE_REFERENCE;
} else
result |= SIG_TYPE_REFERENCE;
diff --git a/engines/sci/engine/script.cpp b/engines/sci/engine/script.cpp
index ca7eaad383..d09b5ace80 100644
--- a/engines/sci/engine/script.cpp
+++ b/engines/sci/engine/script.cpp
@@ -725,7 +725,7 @@ Common::Array<reg_t> Script::listAllDeallocatable(SegmentId segId) const {
Common::Array<reg_t> Script::listAllOutgoingReferences(reg_t addr) const {
Common::Array<reg_t> tmp;
- if (addr.offset <= _bufSize && addr.offset >= -SCRIPT_OBJECT_MAGIC_OFFSET && RAW_IS_OBJECT(_buf + addr.offset)) {
+ if (addr.offset <= _bufSize && addr.offset >= -SCRIPT_OBJECT_MAGIC_OFFSET && offsetIsObject(addr.offset)) {
const Object *obj = getObject(addr.offset);
if (obj) {
// Note all local variables, if we have a local variable environment
@@ -761,4 +761,8 @@ Common::Array<reg_t> Script::listObjectReferences() const {
return tmp;
}
+bool Script::offsetIsObject(uint16 offset) const {
+ return (READ_SCI11ENDIAN_UINT16((const byte *)_buf + offset + SCRIPT_OBJECT_MAGIC_OFFSET) == SCRIPT_OBJECT_MAGIC_NUMBER);
+}
+
} // End of namespace Sci
diff --git a/engines/sci/engine/script.h b/engines/sci/engine/script.h
index df7f42cc0d..0c99f13235 100644
--- a/engines/sci/engine/script.h
+++ b/engines/sci/engine/script.h
@@ -89,6 +89,7 @@ public:
void syncLocalsBlock(SegManager *segMan);
ObjMap &getObjectMap() { return _objects; }
const ObjMap &getObjectMap() const { return _objects; }
+ bool offsetIsObject(uint16 offset) const;
public:
Script();
diff --git a/engines/sci/engine/seg_manager.cpp b/engines/sci/engine/seg_manager.cpp
index 20a8240641..eaa587e3f9 100644
--- a/engines/sci/engine/seg_manager.cpp
+++ b/engines/sci/engine/seg_manager.cpp
@@ -227,7 +227,7 @@ Object *SegManager::getObject(reg_t pos) const {
} else if (mobj->getType() == SEG_TYPE_SCRIPT) {
Script *scr = (Script *)mobj;
if (pos.offset <= scr->getBufSize() && pos.offset >= -SCRIPT_OBJECT_MAGIC_OFFSET
- && RAW_IS_OBJECT(scr->getBuf(pos.offset))) {
+ && scr->offsetIsObject(pos.offset)) {
obj = scr->getObject(pos.offset);
}
}
diff --git a/engines/sci/engine/vm.h b/engines/sci/engine/vm.h
index cdd9b9a06e..67b9dd44eb 100644
--- a/engines/sci/engine/vm.h
+++ b/engines/sci/engine/vm.h
@@ -61,8 +61,6 @@ struct Class {
reg_t reg; ///< offset; script-relative offset, segment: 0 if not instantiated
};
-#define RAW_IS_OBJECT(datablock) (READ_SCI11ENDIAN_UINT16(((const byte *) datablock) + SCRIPT_OBJECT_MAGIC_OFFSET) == SCRIPT_OBJECT_MAGIC_NUMBER)
-
// A reference to an object's variable.
// The object is stored as a reg_t, the variable as an index into _variables
struct ObjVarRef {