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SaveLoad: Add support for saving/loading from a std::deque<T *>

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This commit is contained in:
Jonathan G Rennison
2016-09-12 22:49:52 +01:00
parent 27ee2da1f7
commit c752da3a9e
2 changed files with 52 additions and 7 deletions
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20
src/saveload/saveload.cpp
View File

@@ -52,6 +52,7 @@
#include "../safeguards.h"
#include <deque>
#include <vector>
/*
@@ -1366,9 +1367,10 @@ static void *IntToReference(size_t index, SLRefType rt)
* Return the size in bytes of a list
* @param list The std::list to find the size of
*/
template<typename PtrList>
static inline size_t SlCalcListLen(const void *list)
{
const std::list<void *> *l = (const std::list<void *> *) list;
const PtrList *l = (const PtrList *) list;
int type_size = IsSavegameVersionBefore(69) ? 2 : 4;
/* Each entry is saved as type_size bytes, plus type_size bytes are used for the length
@@ -1382,23 +1384,23 @@ static inline size_t SlCalcListLen(const void *list)
* @param list The list being manipulated
* @param conv SLRefType type of the list (Vehicle *, Station *, etc)
*/
template<typename PtrList>
static void SlList(void *list, SLRefType conv)
{
/* Automatically calculate the length? */
if (_sl.need_length != NL_NONE) {
SlSetLength(SlCalcListLen(list));
SlSetLength(SlCalcListLen<PtrList>(list));
/* Determine length only? */
if (_sl.need_length == NL_CALCLENGTH) return;
}
typedef std::list<void *> PtrList;
PtrList *l = (PtrList *)list;
switch (_sl.action) {
case SLA_SAVE: {
SlWriteUint32((uint32)l->size());
PtrList::iterator iter;
typename PtrList::iterator iter;
for (iter = l->begin(); iter != l->end(); ++iter) {
void *ptr = *iter;
SlWriteUint32((uint32)ReferenceToInt(ptr, conv));
@@ -1420,7 +1422,7 @@ static void SlList(void *list, SLRefType conv)
PtrList temp = *l;
l->clear();
PtrList::iterator iter;
typename PtrList::iterator iter;
for (iter = temp.begin(); iter != temp.end(); ++iter) {
void *ptr = IntToReference((size_t)*iter, conv);
l->push_back(ptr);
@@ -1486,6 +1488,7 @@ size_t SlCalcObjMemberLength(const void *object, const SaveLoad *sld)
case SL_ARR:
case SL_STR:
case SL_LST:
case SL_DEQ:
/* CONDITIONAL saveload types depend on the savegame version */
if (!SlIsObjectValidInSavegame(sld)) break;
@@ -1494,7 +1497,8 @@ size_t SlCalcObjMemberLength(const void *object, const SaveLoad *sld)
case SL_REF: return SlCalcRefLen();
case SL_ARR: return SlCalcArrayLen(sld->length, sld->conv);
case SL_STR: return SlCalcStringLen(GetVariableAddress(object, sld), sld->length, sld->conv);
case SL_LST: return SlCalcListLen(GetVariableAddress(object, sld));
case SL_LST: return SlCalcListLen<std::list<void *>>(GetVariableAddress(object, sld));
case SL_DEQ: return SlCalcListLen<std::deque<void *>>(GetVariableAddress(object, sld));
default: NOT_REACHED();
}
break;
@@ -1557,6 +1561,7 @@ bool SlObjectMember(void *ptr, const SaveLoad *sld)
case SL_ARR:
case SL_STR:
case SL_LST:
case SL_DEQ:
/* CONDITIONAL saveload types depend on the savegame version */
if (!SlIsObjectValidInSavegame(sld)) return false;
if (SlSkipVariableOnLoad(sld)) return false;
@@ -1583,7 +1588,8 @@ bool SlObjectMember(void *ptr, const SaveLoad *sld)
break;
case SL_ARR: SlArray(ptr, sld->length, conv); break;
case SL_STR: SlString(ptr, sld->length, sld->conv); break;
case SL_LST: SlList(ptr, (SLRefType)conv); break;
case SL_LST: SlList<std::list<void *>>(ptr, (SLRefType)conv); break;
case SL_DEQ: SlList<std::deque<void *>>(ptr, (SLRefType)conv); break;
default: NOT_REACHED();
}
break;

39
src/saveload/saveload.h
View File

@@ -205,6 +205,7 @@ enum SaveLoadTypes {
SL_ARR = 2, ///< Save/load an array.
SL_STR = 3, ///< Save/load a string.
SL_LST = 4, ///< Save/load a list.
SL_DEQ = 5, ///< Save/load a deque.
/* non-normal save-load types */
SL_WRITEBYTE = 8,
SL_VEH_INCLUDE = 9,
@@ -310,6 +311,18 @@ typedef SaveLoad SaveLoadGlobVarList;
#define SLE_CONDLST_X(base, variable, type, from, to, extver) SLE_GENERAL_X(SL_LST, base, variable, type, 0, from, to, extver)
#define SLE_CONDLST(base, variable, type, from, to) SLE_CONDLST_X(base, variable, type, from, to, SlXvFeatureTest())
/**
* Storage of a deque in some savegame versions.
* @param base Name of the class or struct containing the list.
* @param variable Name of the variable in the class or struct referenced by \a base.
* @param type Storage of the data in memory and in the savegame.
* @param from First savegame version that has the list.
* @param to Last savegame version that has the list.
* @param extver SlXvFeatureTest to test (along with from and to) which savegames have the field
*/
#define SLE_CONDDEQ_X(base, variable, type, from, to, extver) SLE_GENERAL_X(SL_DEQ, base, variable, type, 0, from, to, extver)
#define SLE_CONDDEQ(base, variable, type, from, to) SLE_CONDDEQ_X(base, variable, type, from, to, SlXvFeatureTest())
/**
* Storage of a variable in every version of a savegame.
* @param base Name of the class or struct containing the variable.
@@ -352,6 +365,14 @@ typedef SaveLoad SaveLoadGlobVarList;
*/
#define SLE_LST(base, variable, type) SLE_CONDLST(base, variable, type, 0, SL_MAX_VERSION)
/**
* Storage of a deque in every savegame version.
* @param base Name of the class or struct containing the list.
* @param variable Name of the variable in the class or struct referenced by \a base.
* @param type Storage of the data in memory and in the savegame.
*/
#define SLE_DEQ(base, variable, type) SLE_CONDDEQ(base, variable, type, 0, SL_MAX_VERSION)
/**
* Empty space in every savegame version.
* @param length Length of the empty space.
@@ -447,6 +468,17 @@ typedef SaveLoad SaveLoadGlobVarList;
#define SLEG_CONDLST_X(variable, type, from, to, extver) SLEG_GENERAL_X(SL_LST, variable, type, 0, from, to, extver)
#define SLEG_CONDLST(variable, type, from, to) SLEG_CONDLST_X(variable, type, from, to, SlXvFeatureTest())
/**
* Storage of a global deque in some savegame versions.
* @param variable Name of the global variable.
* @param type Storage of the data in memory and in the savegame.
* @param from First savegame version that has the list.
* @param to Last savegame version that has the list.
* @param extver SlXvFeatureTest to test (along with from and to) which savegames have the field
*/
#define SLEG_CONDDEQ_X(variable, type, from, to, extver) SLEG_GENERAL_X(SL_DEQ, variable, type, 0, from, to, extver)
#define SLEG_CONDDEQ(variable, type, from, to) SLEG_CONDDEQ_X(variable, type, from, to, SlXvFeatureTest())
/**
* Storage of a global variable in every savegame version.
* @param variable Name of the global variable.
@@ -482,6 +514,13 @@ typedef SaveLoad SaveLoadGlobVarList;
*/
#define SLEG_LST(variable, type) SLEG_CONDLST(variable, type, 0, SL_MAX_VERSION)
/**
* Storage of a global deque in every savegame version.
* @param variable Name of the global variable.
* @param type Storage of the data in memory and in the savegame.
*/
#define SLEG_DEQ(variable, type) SLEG_CONDDEQ(variable, type, 0, SL_MAX_VERSION)
/**
* Empty global space in some savegame versions.
* @param length Length of the empty space.