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