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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include "ags/engine/ac/dynobj/cc_dynamic_array.h"
#include "ags/engine/ac/dynobj/dynobj_manager.h"
#include "ags/engine/ac/dynobj/script_string.h"
#include "ags/globals.h"
namespace AGS3 {
using namespace AGS::Shared;
const char *CCDynamicArray::TypeName = "CCDynamicArray";
// return the type name of the object
const char *CCDynamicArray::GetType() {
return TypeName;
}
int CCDynamicArray::Dispose(void *address, bool force) {
// If it's an array of managed objects, release their ref counts;
// except if this array is forcefully removed from the managed pool,
// in which case just ignore these.
if (!force) {
const Header &hdr = GetHeader(address);
bool is_managed = (hdr.ElemCount & ARRAY_MANAGED_TYPE_FLAG) != 0;
const uint32_t el_count = hdr.ElemCount & (~ARRAY_MANAGED_TYPE_FLAG);
if (is_managed) { // Dynamic array of managed pointers: subref them directly
const uint32_t *handles = reinterpret_cast<const uint32_t *>(address);
for (uint32_t i = 0; i < el_count; ++i) {
if (handles[i] > 0)
ccReleaseObjectReference(handles[i]);
}
}
}
delete[] (static_cast<uint8_t *>(address) - MemHeaderSz);
return 1;
}
size_t CCDynamicArray::CalcSerializeSize(const void *address) {
const Header &hdr = GetHeader(address);
return hdr.TotalSize + FileHeaderSz;
}
void CCDynamicArray::Serialize(const void *address, Stream *out) {
const Header &hdr = GetHeader(address);
out->WriteInt32(hdr.ElemCount);
out->WriteInt32(hdr.TotalSize);
out->Write(address, hdr.TotalSize); // elements
}
void CCDynamicArray::Unserialize(int index, Stream *in, size_t data_sz) {
uint8_t *new_arr = new uint8_t[(data_sz - FileHeaderSz) + MemHeaderSz];
Header &hdr = reinterpret_cast<Header &>(*new_arr);
hdr.ElemCount = in->ReadInt32();
hdr.TotalSize = in->ReadInt32();
in->Read(new_arr + MemHeaderSz, data_sz - FileHeaderSz);
ccRegisterUnserializedObject(index, &new_arr[MemHeaderSz], this);
}
/* static */ DynObjectRef CCDynamicArray::Create(int numElements, int elementSize, bool isManagedType) {
uint8_t *new_arr = new uint8_t[numElements * elementSize + MemHeaderSz];
memset(new_arr, 0, numElements * elementSize + MemHeaderSz);
Header &hdr = reinterpret_cast<Header &>(*new_arr);
hdr.ElemCount = numElements | (ARRAY_MANAGED_TYPE_FLAG * isManagedType);
hdr.TotalSize = elementSize * numElements;
void *obj_ptr = &new_arr[MemHeaderSz];
int32_t handle = ccRegisterManagedObject(obj_ptr, &_GP(globalDynamicArray));
if (handle == 0) {
delete[] new_arr;
return DynObjectRef();
}
return DynObjectRef(handle, obj_ptr, &_GP(globalDynamicArray));
}
DynObjectRef DynamicArrayHelpers::CreateStringArray(const std::vector<const char *> items) {
// NOTE: we need element size of "handle" for array of managed pointers
DynObjectRef arr = _GP(globalDynamicArray).Create(items.size(), sizeof(int32_t), true);
if (!arr.Obj)
return arr;
// Create script strings and put handles into array
int32_t *slots = static_cast<int32_t *>(arr.Obj);
for (auto s : items) {
DynObjectRef str = ScriptString::Create(s);
// We must add reference count, because the string is going to be saved
// within another object (array), not returned to script directly
ccAddObjectReference(str.Handle);
*(slots++) = str.Handle;
}
return arr;
}
} // namespace AGS3
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