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(svn r11139) -Codechange: add support for persistent storage for NewGRFs.

This commit is contained in:
rubidium 2007-09-22 13:56:38 +00:00
parent c68c83dffa
commit 60f1eb21fa
9 changed files with 39 additions and 15 deletions
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5
src/industry.h
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@ -7,6 +7,7 @@
#include "oldpool.h"
#include "helpers.hpp"
#include "newgrf_storage.h"
typedef byte IndustryGfx;
typedef uint8 IndustryType;
@ -94,6 +95,8 @@ DECLARE_OLD_POOL(Industry, Industry, 3, 8000)
* Defines the internal data of a functionnal industry
*/
struct Industry : PoolItem<Industry, IndustryID, &_Industry_pool> {
typedef PersistentStorageArray<uint32, 16> PersistentStorage;
TileIndex xy; ///< coordinates of the primary tile the industry is built one
byte width;
byte height;
@ -121,6 +124,8 @@ struct Industry : PoolItem<Industry, IndustryID, &_Industry_pool> {
Date last_cargo_accepted_at; ///< Last day cargo was accepted by this industry
byte selected_layout; ///< Which tile layout was used when creating the industry
PersistentStorage psa; ///< Persistent storage for NewGRF industries.
Industry(TileIndex tile = 0) : xy(tile) {}
~Industry();

2
src/industry_cmd.cpp
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@ -2074,6 +2074,8 @@ static const SaveLoad _industry_desc[] = {
SLE_CONDVAR(Industry, last_cargo_accepted_at, SLE_INT32, 70, SL_MAX_VERSION),
SLE_CONDVAR(Industry, selected_layout, SLE_UINT8, 73, SL_MAX_VERSION),
SLE_CONDARRX(cpp_offsetof(Industry, psa) + cpp_offsetof(Industry::PersistentStorage, storage), SLE_UINT32, 16, 76, SL_MAX_VERSION),
/* reserve extra space in savegame here. (currently 32 bytes) */
SLE_CONDNULL(32, 2, SL_MAX_VERSION),

4
src/newgrf_industries.cpp
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@ -243,6 +243,9 @@ uint32 IndustryGetVariable(const ResolverObject *object, byte variable, byte par
case 0x67:
case 0x68: return GetCountAndDistanceOfClosestInstance(parameter, variable == 0x68 ? GB(GetRegister(0x101), 0, 8) : 0, industry);
/* Get a variable from the persistent storage */
case 0x7C: return industry->psa.Get(parameter);
/* Industry structure access*/
case 0x80: return industry->xy;
case 0x81: return GB(industry->xy, 8, 8);
@ -323,6 +326,7 @@ static void NewIndustryResolver(ResolverObject *res, TileIndex tile, Industry *i
res->GetVariable = IndustryGetVariable;
res->ResolveReal = IndustryResolveReal;
res->psa = &indus->psa;
res->u.industry.tile = tile;
res->u.industry.ind = indus;
res->u.industry.gfx = INVALID_INDUSTRYTILE;

1
src/newgrf_industrytiles.cpp
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@ -140,6 +140,7 @@ static void NewIndustryTileResolver(ResolverObject *res, IndustryGfx gfx, TileIn
res->GetVariable = IndustryTileGetVariable;
res->ResolveReal = IndustryTileResolveReal;
res->psa = &indus->psa;
res->u.industry.tile = tile;
res->u.industry.ind = indus;
res->u.industry.gfx = gfx;

9
src/newgrf_spritegroup.cpp
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@ -109,7 +109,7 @@ static inline uint32 GetVariable(const ResolverObject *object, byte variable, by
/* Evaluate an adjustment for a variable of the given size.
* U is the unsigned type and S is the signed type to use. */
template <typename U, typename S>
static U EvalAdjustT(const DeterministicSpriteGroupAdjust *adjust, U last_value, uint32 value)
static U EvalAdjustT(const DeterministicSpriteGroupAdjust *adjust, ResolverObject *object, U last_value, uint32 value)
{
value >>= adjust->shift_num;
value &= adjust->and_mask;
@ -139,6 +139,7 @@ static U EvalAdjustT(const DeterministicSpriteGroupAdjust *adjust, U last_value,
case DSGA_OP_XOR: return last_value ^ value;
case DSGA_OP_STO: _temp_store.Store(value, last_value); return last_value;
case DSGA_OP_RST: return value;
case DSGA_OP_STOP: if (object->psa != NULL) object->psa->Store(value, last_value); return last_value;
default: return value;
}
}
@ -177,9 +178,9 @@ static inline const SpriteGroup *ResolveVariable(const SpriteGroup *group, Resol
}
switch (group->g.determ.size) {
case DSG_SIZE_BYTE: value = EvalAdjustT<uint8, int8>(adjust, last_value, value); break;
case DSG_SIZE_WORD: value = EvalAdjustT<uint16, int16>(adjust, last_value, value); break;
case DSG_SIZE_DWORD: value = EvalAdjustT<uint32, int32>(adjust, last_value, value); break;
case DSG_SIZE_BYTE: value = EvalAdjustT<uint8, int8> (adjust, object, last_value, value); break;
case DSG_SIZE_WORD: value = EvalAdjustT<uint16, int16>(adjust, object, last_value, value); break;
case DSG_SIZE_DWORD: value = EvalAdjustT<uint32, int32>(adjust, object, last_value, value); break;
default: NOT_REACHED(); break;
}
last_value = value;

3
src/newgrf_spritegroup.h
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@ -76,6 +76,7 @@ enum DeterministicSpriteGroupAdjustOperation {
DSGA_OP_XOR, ///< a ^ b
DSGA_OP_STO, ///< store a into temporary storage, indexed by b. return a
DSGA_OP_RST, ///< return b
DSGA_OP_STOP, ///< store a into persistent storage, indexed by b, return a
};
@ -199,6 +200,8 @@ struct ResolverObject {
bool info_view; ///< Indicates if the item is being drawn in an info window
BaseStorageArray *psa; ///< The persistent storage array of this resolved object.
union {
struct {
const struct Vehicle *self;

17
src/newgrf_storage.h
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@ -21,7 +21,14 @@ struct BaseStorageArray
* - reverting to the previous version
* @param keep_changes do we save or revert the changes since the last ClearChanges?
*/
virtual void ClearChanges(bool keep_changes) {}
virtual void ClearChanges(bool keep_changes) = 0;
/**
* Stores some value at a given position.
* @param pos the position to write at
* @param value the value to write
*/
virtual void Store(uint pos, uint32 value) = 0;
};
/**
@ -54,7 +61,7 @@ struct PersistentStorageArray : BaseStorageArray {
* @param pos the position to write at
* @param value the value to write
*/
void Store(uint pos, TYPE value)
void Store(uint pos, uint32 value)
{
/* Out of the scope of the array */
if (pos >= SIZE) return;
@ -83,7 +90,7 @@ struct PersistentStorageArray : BaseStorageArray {
* @param pos the position to get the data from
* @return the data from that position
*/
TYPE Get(uint pos)
TYPE Get(uint pos) const
{
/* Out of the scope of the array */
if (pos >= SIZE) return 0;
@ -124,7 +131,7 @@ struct TemporaryStorageArray : BaseStorageArray {
* @param pos the position to write at
* @param value the value to write
*/
void Store(uint pos, TYPE value)
void Store(uint pos, uint32 value)
{
/* Out of the scope of the array */
if (pos >= SIZE) return;
@ -138,7 +145,7 @@ struct TemporaryStorageArray : BaseStorageArray {
* @param pos the position to get the data from
* @return the data from that position
*/
TYPE Get(uint pos)
TYPE Get(uint pos) const
{
/* Out of the scope of the array */
if (pos >= SIZE) return 0;

2
src/saveload.cpp
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@ -29,7 +29,7 @@
#include "strings.h"
#include <list>
extern const uint16 SAVEGAME_VERSION = 75;
extern const uint16 SAVEGAME_VERSION = 76;
uint16 _sl_version; ///< the major savegame version identifier
byte _sl_minor_version; ///< the minor savegame version, DO NOT USE!

11
src/saveload.h
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@ -211,15 +211,16 @@ typedef SaveLoad SaveLoadGlobVarList;
#define SLE_WRITEBYTE(base, variable, value) SLE_GENERAL(SL_WRITEBYTE, base, variable, 0, 0, value, value)
/* The same as the ones at the top, only the offset is given directly; used for unions */
#define SLE_GENERALX(cmd, offset, type, param1, param2) {false, cmd, type, 0, param1, param2, (void*)(offset)}
#define SLE_CONDVARX(offset, type, from, to) SLE_GENERALX(SL_VAR, offset, type, from, to)
#define SLE_CONDREFX(offset, type, from, to) SLE_GENERALX(SL_REF, offset, type, from, to)
#define SLE_GENERALX(cmd, offset, type, length, param1, param2) {false, cmd, type, length, param1, param2, (void*)(offset)}
#define SLE_CONDVARX(offset, type, from, to) SLE_GENERALX(SL_VAR, offset, type, 0, from, to)
#define SLE_CONDARRX(offset, type, length, from, to) SLE_GENERALX(SL_ARR, offset, type, length, from, to)
#define SLE_CONDREFX(offset, type, from, to) SLE_GENERALX(SL_REF, offset, type, 0, from, to)
#define SLE_VARX(offset, type) SLE_CONDVARX(offset, type, 0, SL_MAX_VERSION)
#define SLE_REFX(offset, type) SLE_CONDREFX(offset, type, 0, SL_MAX_VERSION)
#define SLE_WRITEBYTEX(offset, something) SLE_GENERALX(SL_WRITEBYTE, offset, 0, something, 0)
#define SLE_VEH_INCLUDEX() SLE_GENERALX(SL_VEH_INCLUDE, 0, 0, 0, SL_MAX_VERSION)
#define SLE_WRITEBYTEX(offset, something) SLE_GENERALX(SL_WRITEBYTE, offset, 0, 0, something, 0)
#define SLE_VEH_INCLUDEX() SLE_GENERALX(SL_VEH_INCLUDE, 0, 0, 0, 0, SL_MAX_VERSION)
/* End marker */
#define SLE_END() {false, SL_END, 0, 0, 0, 0, NULL}