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-rw-r--r--engines/sci/engine/seg_manager.cpp103
-rw-r--r--engines/sci/engine/seg_manager.h6
-rw-r--r--engines/sci/engine/vm.cpp5
3 files changed, 53 insertions, 61 deletions
diff --git a/engines/sci/engine/seg_manager.cpp b/engines/sci/engine/seg_manager.cpp
index 58dc324d3c..37f49e762f 100644
--- a/engines/sci/engine/seg_manager.cpp
+++ b/engines/sci/engine/seg_manager.cpp
@@ -148,33 +148,33 @@ MemObject *SegManager::allocateScript(EngineState *s, int script_nr, int* seg_id
return mem;
}
-void SegManager::setScriptSize(MemObject *mem, EngineState *s, int script_nr) {
+void SegManager::setScriptSize(Script &scr, EngineState *s, int script_nr) {
Resource *script = s->resmgr->findResource(kResourceTypeScript, script_nr, 0);
Resource *heap = s->resmgr->findResource(kResourceTypeHeap, script_nr, 0);
- mem->data.script.script_size = script->size;
- mem->data.script.heap_size = 0; // Set later
+ scr.script_size = script->size;
+ scr.heap_size = 0; // Set later
if (!script || (s->version >= SCI_VERSION(1, 001, 000) && !heap)) {
sciprintf("%s: failed to load %s\n", __FUNCTION__, !script ? "script" : "heap");
return;
}
if (s->version < SCI_VERSION_FTU_NEW_SCRIPT_HEADER) {
- mem->data.script.buf_size = script->size + READ_LE_UINT16(script->data) * 2;
+ 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, 001, 000)) {
- mem->data.script.buf_size = script->size;
+ scr.buf_size = script->size;
} else {
- mem->data.script.buf_size = script->size + heap->size;
- mem->data.script.heap_size = heap->size;
+ scr.buf_size = script->size + heap->size;
+ scr.heap_size = heap->size;
// Ensure that the start of the heap resource can be word-aligned.
if (script->size & 2) {
- mem->data.script.buf_size++;
- mem->data.script.script_size++;
+ scr.buf_size++;
+ scr.script_size++;
}
- if (mem->data.script.buf_size > 65535) {
+ if (scr.buf_size > 65535) {
sciprintf("Script and heap sizes combined exceed 64K.\n"
"This means a fundamental design bug was made in SCI\n"
"regarding SCI1.1 games.\nPlease report this so it can be"
@@ -184,44 +184,42 @@ void SegManager::setScriptSize(MemObject *mem, EngineState *s, int script_nr) {
}
}
-int SegManager::initialiseScript(MemObject *mem, EngineState *s, int script_nr) {
+int SegManager::initialiseScript(Script &scr, EngineState *s, int script_nr) {
// allocate the script.buf
- Script *scr;
- setScriptSize(mem, s, script_nr);
- mem->data.script.buf = (byte*) sci_malloc(mem->data.script.buf_size);
+ setScriptSize(scr, s, script_nr);
+ scr.buf = (byte*)sci_malloc(scr.buf_size);
- dbgPrint("mem->data.script.buf ", mem->data.script.buf);
- if (!mem->data.script.buf) {
- freeScript(mem);
+ dbgPrint("scr.buf ", scr.buf);
+ if (!scr.buf) {
+ freeScript(scr);
sciprintf("SegManager: Not enough memory space for script size");
- mem->data.script.buf_size = 0;
+ scr.buf_size = 0;
return 0;
}
// Initialize objects
- scr = &(mem->data.script);
- scr->objects = NULL;
- scr->objects_allocated = 0;
- scr->objects_nr = 0; // No objects recorded yet
+ scr.objects = NULL;
+ scr.objects_allocated = 0;
+ scr.objects_nr = 0; // No objects recorded yet
- scr->locals_offset = 0;
- scr->locals_block = NULL;
+ scr.locals_offset = 0;
+ scr.locals_block = NULL;
- scr->code = NULL;
- scr->code_blocks_nr = 0;
- scr->code_blocks_allocated = 0;
+ scr.code = NULL;
+ scr.code_blocks_nr = 0;
+ scr.code_blocks_allocated = 0;
- scr->nr = script_nr;
- scr->marked_as_deleted = 0;
- scr->relocated = 0;
+ scr.nr = script_nr;
+ scr.marked_as_deleted = 0;
+ scr.relocated = 0;
- scr->obj_indices = new IntMapper();
+ scr.obj_indices = new IntMapper();
if (s->version >= SCI_VERSION(1, 001, 000))
- scr->heap_start = scr->buf + scr->script_size;
+ scr.heap_start = scr.buf + scr.script_size;
else
- scr->heap_start = scr->buf;
+ scr.heap_start = scr.buf;
return 1;
}
@@ -236,7 +234,7 @@ int SegManager::deallocate(int seg, bool recursive) {
switch (mobj->type) {
case MEM_OBJ_SCRIPT:
- freeScript(mobj);
+ freeScript(mobj->data.script);
mobj->data.script.buf = NULL;
if (recursive && mobj->data.script.locals_segment)
@@ -387,32 +385,30 @@ void SegManager::sm_object_init(Object *object) {
object->variables = NULL;
};*/
-void SegManager::freeScript(MemObject *mem) {
- if (!mem)
- return;
- if (mem->data.script.buf) {
- free(mem->data.script.buf);
- mem->data.script.buf = NULL;
- mem->data.script.buf_size = 0;
+void SegManager::freeScript(Script &scr) {
+ if (scr.buf) {
+ free(scr.buf);
+ scr.buf = NULL;
+ scr.buf_size = 0;
}
- if (mem->data.script.objects) {
+ if (scr.objects) {
int i;
- for (i = 0; i < mem->data.script.objects_nr; i++) {
- Object* object = &mem->data.script.objects[i];
+ for (i = 0; i < scr.objects_nr; i++) {
+ Object* object = &scr.objects[i];
if (object->variables) {
free(object->variables);
object->variables = NULL;
object->variables_nr = 0;
}
}
- free(mem->data.script.objects);
- mem->data.script.objects = NULL;
- mem->data.script.objects_nr = 0;
+ free(scr.objects);
+ scr.objects = NULL;
+ scr.objects_nr = 0;
}
- delete mem->data.script.obj_indices;
- free(mem->data.script.code);
+ delete scr.obj_indices;
+ free(scr.code);
}
// memory operations
@@ -426,21 +422,16 @@ void SegManager::mcpyInOut(int dst, const void *src, size_t n, int id, idFlag fl
int16 SegManager::getHeap(reg_t reg) {
MemObject *mem_obj;
- memObjType mem_type;
VERIFY(check(reg.segment), "Invalid seg id");
mem_obj = heap[reg.segment];
- mem_type = mem_obj->type;
- switch (mem_type) {
+ switch (mem_obj->type) {
case MEM_OBJ_SCRIPT:
VERIFY(reg.offset + 1 < (uint16)mem_obj->data.script.buf_size, "invalid offset\n");
return (mem_obj->data.script.buf[reg.offset] | (mem_obj->data.script.buf[reg.offset+1]) << 8);
- case MEM_OBJ_CLONES:
- sciprintf("memcpy for clones hasn't been implemented yet\n");
- break;
default:
- sciprintf("unknown mem obj type\n");
+ error("SegManager::getHeap: unsupported mem obj type %d", mem_obj->type);
break;
}
return 0; // never get here
diff --git a/engines/sci/engine/seg_manager.h b/engines/sci/engine/seg_manager.h
index dc541e75ba..9808d93d40 100644
--- a/engines/sci/engine/seg_manager.h
+++ b/engines/sci/engine/seg_manager.h
@@ -58,7 +58,7 @@ public:
// 1. Scripts
- void freeScript(MemObject* mem);
+ void freeScript(Script &scr);
// Allocate a script into the segment manager
// Parameters: (int) script_nr: number of the script to load
@@ -379,7 +379,7 @@ public:
void scriptRelocateExportsSci11(int seg);
void scriptInitialiseObjectsSci11(EngineState *s, int seg);
int scriptMarkedDeleted(int script_nr);
- int initialiseScript(MemObject *mem, EngineState *s, int script_nr);
+ int initialiseScript(Script &scr, EngineState *s, int script_nr);
public: // TODO: make private
IntMapper *id_seg_map; // id - script id; seg - index of heap
@@ -413,7 +413,7 @@ private:
int relocateObject(Object *obj, SegmentId segment, int location);
int findFreeId(int *id);
- static void setScriptSize(MemObject *mem, EngineState *s, int script_nr);
+ static void setScriptSize(Script &scr, EngineState *s, int script_nr);
Object *scriptObjInit0(EngineState *s, reg_t obj_pos);
Object *scriptObjInit11(EngineState *s, reg_t obj_pos);
diff --git a/engines/sci/engine/vm.cpp b/engines/sci/engine/vm.cpp
index 92da5c297b..af40f7a522 100644
--- a/engines/sci/engine/vm.cpp
+++ b/engines/sci/engine/vm.cpp
@@ -1702,7 +1702,8 @@ int script_instantiate_common(EngineState *s, int script_nr, Resource **script,
} else {
seg_id = seg;
mem = s->seg_manager->heap[seg];
- s->seg_manager->freeScript(mem);
+ assert(mem);
+ s->seg_manager->freeScript(mem->data.script);
}
} else if (!(mem = s->seg_manager->allocateScript(s, script_nr, &seg_id))) { // ALL YOUR SCRIPT BASE ARE BELONG TO US
sciprintf("Not enough heap space for script size 0x%x of script 0x%x, should this happen?`\n", (*script)->size, script_nr);
@@ -1710,7 +1711,7 @@ int script_instantiate_common(EngineState *s, int script_nr, Resource **script,
return 0;
}
- s->seg_manager->initialiseScript(mem, s, script_nr);
+ s->seg_manager->initialiseScript(mem->data.script, s, script_nr);
reg.segment = seg_id;
reg.offset = 0;
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-03 21:33:37 +0000