diff options
Diffstat (limited to 'engines/sci/engine/seg_manager.cpp')
| -rw-r--r-- | engines/sci/engine/seg_manager.cpp | 368 |
1 files changed, 4 insertions, 364 deletions
diff --git a/engines/sci/engine/seg_manager.cpp b/engines/sci/engine/seg_manager.cpp index 69a939dae9..dcf7180501 100644 --- a/engines/sci/engine/seg_manager.cpp +++ b/engines/sci/engine/seg_manager.cpp @@ -135,13 +135,13 @@ void SegManager::setScriptSize(Script &scr, EngineState *s, int script_nr) { scr.script_size = script->size; scr.heap_size = 0; // Set later - if (!script || (s->version >= SCI_VERSION_1_1 && !heap)) { + if (!script || (s->_version >= SCI_VERSION_1_1 && !heap)) { error("SegManager::setScriptSize: failed to load %s", !script ? "script" : "heap"); } - if (s->flags & GF_SCI0_OLD) { + if (s->_flags & GF_SCI0_OLD) { scr.buf_size = script->size + READ_LE_UINT16(script->data) * 2; //locals_size = READ_LE_UINT16(script->data) * 2; - } else if (s->version < SCI_VERSION_1_1) { + } else if (s->_version < SCI_VERSION_1_1) { scr.buf_size = script->size; } else { scr.buf_size = script->size + heap->size; @@ -189,7 +189,7 @@ int SegManager::initialiseScript(Script &scr, EngineState *s, int script_nr) { scr.obj_indices = new IntMapper(); - if (s->version >= SCI_VERSION_1_1) + if (s->_version >= SCI_VERSION_1_1) scr.heap_start = scr.buf + scr.script_size; else scr.heap_start = scr.buf; @@ -232,49 +232,6 @@ int SegManager::deallocateScript(int script_nr) { return 1; } -MemObject *MemObject::createMemObject(MemObjectType type) { - MemObject *mem = 0; - switch (type) { - case MEM_OBJ_SCRIPT: - mem = new Script(); - break; - case MEM_OBJ_CLONES: - mem = new CloneTable(); - break; - case MEM_OBJ_LOCALS: - mem = new LocalVariables(); - break; - case MEM_OBJ_SYS_STRINGS: - mem = new SystemStrings(); - break; - case MEM_OBJ_STACK: - mem = new DataStack(); - break; - case MEM_OBJ_HUNK: - mem = new HunkTable(); - break; - case MEM_OBJ_STRING_FRAG: - mem = new StringFrag(); - break; - case MEM_OBJ_LISTS: - mem = new ListTable(); - break; - case MEM_OBJ_NODES: - mem = new NodeTable(); - break; - case MEM_OBJ_DYNMEM: - mem = new DynMem(); - break; - default: - error("Unknown MemObject type %d", type); - break; - } - - assert(mem); - mem->_type = type; - return mem; -} - MemObject *SegManager::memObjAllocate(SegmentId segid, int hash_id, MemObjectType type) { MemObject *mem = MemObject::createMemObject(type); if (!mem) { @@ -294,33 +251,6 @@ MemObject *SegManager::memObjAllocate(SegmentId segid, int hash_id, MemObjectTyp return mem; } -void Script::freeScript() { - free(buf); - buf = NULL; - buf_size = 0; - - _objects.clear(); - - delete obj_indices; - obj_indices = 0; - _codeBlocks.clear(); -} - -// memory operations - -void Script::mcpyInOut(int dst, const void *src, size_t n) { - if (buf) { - assert(dst + n <= buf_size); - memcpy(buf + dst, src, n); - } -} - -int16 Script::getHeap(uint16 offset) const { - VERIFY(offset + 1 < (int)buf_size, "invalid offset\n"); - return READ_LE_UINT16(buf + offset); -// return (buf[offset] | (buf[offset+1]) << 8); -} - // return the seg if script_id is valid and in the map, else -1 SegmentId SegManager::segGet(int script_id) const { return id_seg_map->lookupKey(script_id); @@ -367,53 +297,10 @@ bool SegManager::scriptIsLoaded(SegmentId seg) { return getScriptIfLoaded(seg) != 0; } -void Script::incrementLockers() { - lockers++; -} - -void Script::decrementLockers() { - if (lockers > 0) - lockers--; -} - -int Script::getLockers() const { - return lockers; -} - -void Script::setLockers(int lockers_) { - lockers = lockers_; -} - -void Script::setExportTableOffset(int offset) { - if (offset) { - export_table = (uint16 *)(buf + offset + 2); - exports_nr = READ_LE_UINT16((byte *)(export_table - 1)); - } else { - export_table = NULL; - exports_nr = 0; - } -} - void SegManager::setExportWidth(int flag) { exports_wide = flag; } -void Script::setSynonymsOffset(int offset) { - synonyms = buf + offset; -} - -byte *Script::getSynonyms() const { - return synonyms; -} - -void Script::setSynonymsNr(int n) { - synonyms_nr = n; -} - -int Script::getSynonymsNr() const { - return synonyms_nr; -} - int SegManager::relocateBlock(Common::Array<reg_t> &block, int block_location, SegmentId segment, int location) { int rel = location - block_location; @@ -925,67 +812,6 @@ Hunk *SegManager::alloc_Hunk(reg_t *addr) { return &(table->_table[offset]); } -byte *MemObject::dereference(reg_t pointer, int *size) { - error("Error: Trying to dereference pointer %04x:%04x to inappropriate segment", - PRINT_REG(pointer)); - return NULL; -} - -byte *Script::dereference(reg_t pointer, int *size) { - if (pointer.offset > buf_size) { - sciprintf("Error: Attempt to dereference invalid pointer %04x:%04x into script segment (script size=%d)\n", - PRINT_REG(pointer), (uint)buf_size); - return NULL; - } - if (size) - *size = buf_size - pointer.offset; - return (byte *)(buf + pointer.offset); -} - -byte *LocalVariables::dereference(reg_t pointer, int *size) { - // FIXME: The following doesn't seem to be endian safe. - // To fix this, we'd have to always treat the reg_t - // values stored here as in the little endian format. - int count = _locals.size() * sizeof(reg_t); - byte *base = (byte *)&_locals[0]; - - if (size) - *size = count; - - return base + pointer.offset; -} - -byte *DataStack::dereference(reg_t pointer, int *size) { - int count = nr * sizeof(reg_t); - byte *base = (byte *)entries; - - if (size) - *size = count; - - return base + pointer.offset; -} - -byte *DynMem::dereference(reg_t pointer, int *size) { - int count = _size; - byte *base = (byte *)_buf; - - if (size) - *size = count; - - return base + pointer.offset; -} - -byte *SystemStrings::dereference(reg_t pointer, int *size) { - if (size) - *size = strings[pointer.offset].max_size; - if (pointer.offset < SYS_STRINGS_MAX && strings[pointer.offset].name) - return (byte *)(strings[pointer.offset].value); - - // This occurs in KQ5CD when interacting with certain objects - warning("Attempt to dereference invalid pointer %04x:%04x", PRINT_REG(pointer)); - return NULL; -} - byte *SegManager::dereference(reg_t pointer, int *size) { if (!pointer.segment || (pointer.segment >= _heap.size()) || !_heap[pointer.segment]) { // This occurs in KQ5CD when interacting with certain objects @@ -1048,191 +874,5 @@ void SegManager::dbgPrint(const char* msg, void *i) { } -//-------------------- script -------------------- -reg_t Script::findCanonicAddress(SegManager *segmgr, reg_t addr) { - addr.offset = 0; - return addr; -} - -void Script::freeAtAddress(SegManager *segmgr, reg_t addr) { - /* - sciprintf("[GC] Freeing script %04x:%04x\n", PRINT_REG(addr)); - if (locals_segment) - sciprintf("[GC] Freeing locals %04x:0000\n", locals_segment); - */ - - if (_markedAsDeleted) - segmgr->deallocateScript(nr); -} - -void Script::listAllDeallocatable(SegmentId segId, void *param, NoteCallback note) { - (*note)(param, make_reg(segId, 0)); -} - -void Script::listAllOutgoingReferences(EngineState *s, reg_t addr, void *param, NoteCallback note) { - Script *script = this; - - if (addr.offset <= script->buf_size && addr.offset >= -SCRIPT_OBJECT_MAGIC_OFFSET && RAW_IS_OBJECT(script->buf + addr.offset)) { - int idx = RAW_GET_CLASS_INDEX(script, addr); - if (idx >= 0 && (uint)idx < script->_objects.size()) { - // Note all local variables, if we have a local variable environment - if (script->locals_segment) - (*note)(param, make_reg(script->locals_segment, 0)); - - Object &obj = script->_objects[idx]; - for (uint i = 0; i < obj._variables.size(); i++) - (*note)(param, obj._variables[i]); - } else { - warning("Request for outgoing script-object reference at %04x:%04x yielded invalid index %d", PRINT_REG(addr), idx); - } - } else { - /* warning("Unexpected request for outgoing script-object references at %04x:%04x", PRINT_REG(addr));*/ - /* Happens e.g. when we're looking into strings */ - } -} - - -//-------------------- clones -------------------- - -template<typename T> -void Table<T>::listAllDeallocatable(SegmentId segId, void *param, NoteCallback note) { - for (uint i = 0; i < _table.size(); i++) - if (isValidEntry(i)) - (*note)(param, make_reg(segId, i)); -} - -void CloneTable::listAllOutgoingReferences(EngineState *s, reg_t addr, void *param, NoteCallback note) { - CloneTable *clone_table = this; - Clone *clone; - -// assert(addr.segment == _segId); - - if (!clone_table->isValidEntry(addr.offset)) { - warning("Unexpected request for outgoing references from clone at %04x:%04x", PRINT_REG(addr)); -// BREAKPOINT(); - return; - } - - clone = &(clone_table->_table[addr.offset]); - - // Emit all member variables (including references to the 'super' delegate) - for (uint i = 0; i < clone->_variables.size(); i++) - (*note)(param, clone->_variables[i]); - - // Note that this also includes the 'base' object, which is part of the script and therefore also emits the locals. - (*note)(param, clone->pos); - //sciprintf("[GC] Reporting clone-pos %04x:%04x\n", PRINT_REG(clone->pos)); -} - -void CloneTable::freeAtAddress(SegManager *segmgr, reg_t addr) { - CloneTable *clone_table = this; - Object *victim_obj; - -// assert(addr.segment == _segId); - - victim_obj = &(clone_table->_table[addr.offset]); - -#ifdef GC_DEBUG - if (!(victim_obj->flags & OBJECT_FLAG_FREED)) - sciprintf("[GC] Warning: Clone %04x:%04x not reachable and not freed (freeing now)\n", PRINT_REG(addr)); -#ifdef GC_DEBUG_VERBOSE - else - sciprintf("[GC-DEBUG] Clone %04x:%04x: Freeing\n", PRINT_REG(addr)); -#endif -#endif - /* - sciprintf("[GC] Clone %04x:%04x: Freeing\n", PRINT_REG(addr)); - sciprintf("[GC] Clone had pos %04x:%04x\n", PRINT_REG(victim_obj->pos)); - */ - clone_table->freeEntry(addr.offset); -} - - -//-------------------- locals -------------------- -reg_t LocalVariables::findCanonicAddress(SegManager *segmgr, reg_t addr) { - // Reference the owning script - SegmentId owner_seg = segmgr->segGet(script_id); - - assert(owner_seg >= 0); - - return make_reg(owner_seg, 0); -} - -void LocalVariables::listAllOutgoingReferences(EngineState *s, reg_t addr, void *param, NoteCallback note) { -// assert(addr.segment == _segId); - - for (uint i = 0; i < _locals.size(); i++) - (*note)(param, _locals[i]); -} - - -//-------------------- stack -------------------- -reg_t DataStack::findCanonicAddress(SegManager *segmgr, reg_t addr) { - addr.offset = 0; - return addr; -} - -void DataStack::listAllOutgoingReferences(EngineState *s, reg_t addr, void *param, NoteCallback note) { - fprintf(stderr, "Emitting %d stack entries\n", nr); - for (int i = 0; i < nr; i++) - (*note)(param, entries[i]); - fprintf(stderr, "DONE"); -} - - -//-------------------- lists -------------------- -void ListTable::freeAtAddress(SegManager *segmgr, reg_t sub_addr) { - freeEntry(sub_addr.offset); -} - -void ListTable::listAllOutgoingReferences(EngineState *s, reg_t addr, void *param, NoteCallback note) { - if (!isValidEntry(addr.offset)) { - warning("Invalid list referenced for outgoing references: %04x:%04x", PRINT_REG(addr)); - return; - } - - List *list = &(_table[addr.offset]); - - note(param, list->first); - note(param, list->last); - // We could probably get away with just one of them, but - // let's be conservative here. -} - - -//-------------------- nodes -------------------- -void NodeTable::freeAtAddress(SegManager *segmgr, reg_t sub_addr) { - freeEntry(sub_addr.offset); -} - -void NodeTable::listAllOutgoingReferences(EngineState *s, reg_t addr, void *param, NoteCallback note) { - if (!isValidEntry(addr.offset)) { - warning("Invalid node referenced for outgoing references: %04x:%04x", PRINT_REG(addr)); - return; - } - Node *node = &(_table[addr.offset]); - - // We need all four here. Can't just stick with 'pred' OR 'succ' because node operations allow us - // to walk around from any given node - note(param, node->pred); - note(param, node->succ); - note(param, node->key); - note(param, node->value); -} - - -//-------------------- hunk -------------------- - -//-------------------- dynamic memory -------------------- - -reg_t DynMem::findCanonicAddress(SegManager *segmgr, reg_t addr) { - addr.offset = 0; - return addr; -} - -void DynMem::listAllDeallocatable(SegmentId segId, void *param, NoteCallback note) { - (*note)(param, make_reg(segId, 0)); -} - } // End of namespace Sci |