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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/globals.h"
namespace AGS3 {
// return the type name of the object
const char *CCDynamicArray::GetType() {
return CC_DYNAMIC_ARRAY_TYPE_NAME;
}
int CCDynamicArray::Dispose(const char *address, bool force) {
address -= 8;
// 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) {
int *elementCount = (int *)const_cast<char *>(address);
if (elementCount[0] & ARRAY_MANAGED_TYPE_FLAG) {
elementCount[0] &= ~ARRAY_MANAGED_TYPE_FLAG;
for (int i = 0; i < elementCount[0]; i++) {
if (elementCount[2 + i] != 0) {
ccReleaseObjectReference(elementCount[2 + i]);
}
}
}
}
delete address;
return 1;
}
// serialize the object into BUFFER (which is BUFSIZE bytes)
// return number of bytes used
int CCDynamicArray::Serialize(const char *address, char *buffer, int bufsize) {
const int *sizeInBytes = &((const int *)address)[-1];
int sizeToWrite = *sizeInBytes + 8;
if (sizeToWrite > bufsize) {
// buffer not big enough, ask for a bigger one
return -sizeToWrite;
}
memcpy(buffer, address - 8, sizeToWrite);
return sizeToWrite;
}
void CCDynamicArray::Unserialize(int index, const char *serializedData, int dataSize) {
char *newArray = new char[dataSize];
memcpy(newArray, serializedData, dataSize);
ccRegisterUnserializedObject(index, &newArray[8], this);
}
DynObjectRef CCDynamicArray::Create(int numElements, int elementSize, bool isManagedType) {
char *newArray = new char[numElements * elementSize + 8]();
int *sizePtr = (int *)newArray;
sizePtr[0] = numElements;
sizePtr[1] = numElements * elementSize;
if (isManagedType)
sizePtr[0] |= ARRAY_MANAGED_TYPE_FLAG;
void *obj_ptr = &newArray[8];
int32_t handle = ccRegisterManagedObject(obj_ptr, this);
if (handle == 0) {
delete[] newArray;
return DynObjectRef(0, nullptr);
}
return DynObjectRef(handle, obj_ptr);
}
const char *CCDynamicArray::GetFieldPtr(const char *address, intptr_t offset) {
return address + offset;
}
void CCDynamicArray::Read(const char *address, intptr_t offset, void *dest, int size) {
memcpy(dest, address + offset, size);
}
uint8_t CCDynamicArray::ReadInt8(const char *address, intptr_t offset) {
return *(const uint8_t *)(address + offset);
}
int16_t CCDynamicArray::ReadInt16(const char *address, intptr_t offset) {
return *(const int16_t *)(address + offset);
}
int32_t CCDynamicArray::ReadInt32(const char *address, intptr_t offset) {
return *(const int32_t *)(address + offset);
}
float CCDynamicArray::ReadFloat(const char *address, intptr_t offset) {
return *(const float *)(address + offset);
}
void CCDynamicArray::Write(const char *address, intptr_t offset, void *src, int size) {
memcpy((void *)(const_cast<char *>(address) + offset), src, size);
}
void CCDynamicArray::WriteInt8(const char *address, intptr_t offset, uint8_t val) {
*(uint8_t *)(const_cast<char *>(address) + offset) = val;
}
void CCDynamicArray::WriteInt16(const char *address, intptr_t offset, int16_t val) {
*(int16_t *)(const_cast<char *>(address) + offset) = val;
}
void CCDynamicArray::WriteInt32(const char *address, intptr_t offset, int32_t val) {
*(int32_t *)(const_cast<char *>(address) + offset) = val;
}
void CCDynamicArray::WriteFloat(const char *address, intptr_t offset, float val) {
*(float *)(const_cast<char *>(address) + offset) = val;
}
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.second)
return arr;
// Create script strings and put handles into array
int32_t *slots = static_cast<int32_t *>(arr.second);
for (auto s : items) {
DynObjectRef str = _G(stringClassImpl)->CreateString(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.first);
*(slots++) = str.first;
}
return arr;
}
} // namespace AGS3
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