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@ r27976:645fcc9c218c
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Location: cpp/openttd-patchpack/source/src/saveload/map_sl.cpp
r27976:645fcc9c218c
9.8 KiB
text/x-c
Change: Store station blocked/wires/pylons flags in map. (#11337)
This stores three flags in unused map bits, and avoids having to look up
station graphics and custom station specs to determine blocked/wires/pylons
status.
This potentially affects rail pathfinding performance.
Savegame version is not bumped, as the flags can just be updated every
time.
This stores three flags in unused map bits, and avoids having to look up
station graphics and custom station specs to determine blocked/wires/pylons
status.
This potentially affects rail pathfinding performance.
Savegame version is not bumped, as the flags can just be updated every
time.
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* This file is part of OpenTTD.
* OpenTTD 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, version 2.
* OpenTTD 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 OpenTTD. If not, see <http://www.gnu.org/licenses/>.
*/
/** @file map_sl.cpp Code handling saving and loading of map */
#include "../stdafx.h"
#include "saveload.h"
#include "compat/map_sl_compat.h"
#include "../map_func.h"
#include "../core/bitmath_func.hpp"
#include "../fios.h"
#include "../safeguards.h"
static uint32_t _map_dim_x;
static uint32_t _map_dim_y;
static const SaveLoad _map_desc[] = {
SLEG_CONDVAR("dim_x", _map_dim_x, SLE_UINT32, SLV_6, SL_MAX_VERSION),
SLEG_CONDVAR("dim_y", _map_dim_y, SLE_UINT32, SLV_6, SL_MAX_VERSION),
};
struct MAPSChunkHandler : ChunkHandler {
MAPSChunkHandler() : ChunkHandler('MAPS', CH_TABLE) {}
void Save() const override
{
SlTableHeader(_map_desc);
_map_dim_x = Map::SizeX();
_map_dim_y = Map::SizeY();
SlSetArrayIndex(0);
SlGlobList(_map_desc);
}
void Load() const override
{
const std::vector<SaveLoad> slt = SlCompatTableHeader(_map_desc, _map_sl_compat);
if (!IsSavegameVersionBefore(SLV_RIFF_TO_ARRAY) && SlIterateArray() == -1) return;
SlGlobList(slt);
if (!IsSavegameVersionBefore(SLV_RIFF_TO_ARRAY) && SlIterateArray() != -1) SlErrorCorrupt("Too many MAPS entries");
Map::Allocate(_map_dim_x, _map_dim_y);
}
void LoadCheck(size_t) const override
{
const std::vector<SaveLoad> slt = SlCompatTableHeader(_map_desc, _map_sl_compat);
if (!IsSavegameVersionBefore(SLV_RIFF_TO_ARRAY) && SlIterateArray() == -1) return;
SlGlobList(slt);
if (!IsSavegameVersionBefore(SLV_RIFF_TO_ARRAY) && SlIterateArray() != -1) SlErrorCorrupt("Too many MAPS entries");
_load_check_data.map_size_x = _map_dim_x;
_load_check_data.map_size_y = _map_dim_y;
}
};
static const uint MAP_SL_BUF_SIZE = 4096;
struct MAPTChunkHandler : ChunkHandler {
MAPTChunkHandler() : ChunkHandler('MAPT', CH_RIFF) {}
void Load() const override
{
std::array<byte, MAP_SL_BUF_SIZE> buf;
uint size = Map::Size();
for (TileIndex i = 0; i != size;) {
SlCopy(buf.data(), MAP_SL_BUF_SIZE, SLE_UINT8);
for (uint j = 0; j != MAP_SL_BUF_SIZE; j++) Tile(i++).type() = buf[j];
}
}
void Save() const override
{
std::array<byte, MAP_SL_BUF_SIZE> buf;
uint size = Map::Size();
SlSetLength(size);
for (TileIndex i = 0; i != size;) {
for (uint j = 0; j != MAP_SL_BUF_SIZE; j++) buf[j] = Tile(i++).type();
SlCopy(buf.data(), MAP_SL_BUF_SIZE, SLE_UINT8);
}
}
};
struct MAPHChunkHandler : ChunkHandler {
MAPHChunkHandler() : ChunkHandler('MAPH', CH_RIFF) {}
void Load() const override
{
std::array<byte, MAP_SL_BUF_SIZE> buf;
uint size = Map::Size();
for (TileIndex i = 0; i != size;) {
SlCopy(buf.data(), MAP_SL_BUF_SIZE, SLE_UINT8);
for (uint j = 0; j != MAP_SL_BUF_SIZE; j++) Tile(i++).height() = buf[j];
}
}
void Save() const override
{
std::array<byte, MAP_SL_BUF_SIZE> buf;
uint size = Map::Size();
SlSetLength(size);
for (TileIndex i = 0; i != size;) {
for (uint j = 0; j != MAP_SL_BUF_SIZE; j++) buf[j] = Tile(i++).height();
SlCopy(buf.data(), MAP_SL_BUF_SIZE, SLE_UINT8);
}
}
};
struct MAPOChunkHandler : ChunkHandler {
MAPOChunkHandler() : ChunkHandler('MAPO', CH_RIFF) {}
void Load() const override
{
std::array<byte, MAP_SL_BUF_SIZE> buf;
uint size = Map::Size();
for (TileIndex i = 0; i != size;) {
SlCopy(buf.data(), MAP_SL_BUF_SIZE, SLE_UINT8);
for (uint j = 0; j != MAP_SL_BUF_SIZE; j++) Tile(i++).m1() = buf[j];
}
}
void Save() const override
{
std::array<byte, MAP_SL_BUF_SIZE> buf;
uint size = Map::Size();
SlSetLength(size);
for (TileIndex i = 0; i != size;) {
for (uint j = 0; j != MAP_SL_BUF_SIZE; j++) buf[j] = Tile(i++).m1();
SlCopy(buf.data(), MAP_SL_BUF_SIZE, SLE_UINT8);
}
}
};
struct MAP2ChunkHandler : ChunkHandler {
MAP2ChunkHandler() : ChunkHandler('MAP2', CH_RIFF) {}
void Load() const override
{
std::array<uint16_t, MAP_SL_BUF_SIZE> buf;
uint size = Map::Size();
for (TileIndex i = 0; i != size;) {
SlCopy(buf.data(), MAP_SL_BUF_SIZE,
/* In those versions the m2 was 8 bits */
IsSavegameVersionBefore(SLV_5) ? SLE_FILE_U8 | SLE_VAR_U16 : SLE_UINT16
);
for (uint j = 0; j != MAP_SL_BUF_SIZE; j++) Tile(i++).m2() = buf[j];
}
}
void Save() const override
{
std::array<uint16_t, MAP_SL_BUF_SIZE> buf;
uint size = Map::Size();
SlSetLength(static_cast<uint32_t>(size) * sizeof(uint16_t));
for (TileIndex i = 0; i != size;) {
for (uint j = 0; j != MAP_SL_BUF_SIZE; j++) buf[j] = Tile(i++).m2();
SlCopy(buf.data(), MAP_SL_BUF_SIZE, SLE_UINT16);
}
}
};
struct M3LOChunkHandler : ChunkHandler {
M3LOChunkHandler() : ChunkHandler('M3LO', CH_RIFF) {}
void Load() const override
{
std::array<byte, MAP_SL_BUF_SIZE> buf;
uint size = Map::Size();
for (TileIndex i = 0; i != size;) {
SlCopy(buf.data(), MAP_SL_BUF_SIZE, SLE_UINT8);
for (uint j = 0; j != MAP_SL_BUF_SIZE; j++) Tile(i++).m3() = buf[j];
}
}
void Save() const override
{
std::array<byte, MAP_SL_BUF_SIZE> buf;
uint size = Map::Size();
SlSetLength(size);
for (TileIndex i = 0; i != size;) {
for (uint j = 0; j != MAP_SL_BUF_SIZE; j++) buf[j] = Tile(i++).m3();
SlCopy(buf.data(), MAP_SL_BUF_SIZE, SLE_UINT8);
}
}
};
struct M3HIChunkHandler : ChunkHandler {
M3HIChunkHandler() : ChunkHandler('M3HI', CH_RIFF) {}
void Load() const override
{
std::array<byte, MAP_SL_BUF_SIZE> buf;
uint size = Map::Size();
for (TileIndex i = 0; i != size;) {
SlCopy(buf.data(), MAP_SL_BUF_SIZE, SLE_UINT8);
for (uint j = 0; j != MAP_SL_BUF_SIZE; j++) Tile(i++).m4() = buf[j];
}
}
void Save() const override
{
std::array<byte, MAP_SL_BUF_SIZE> buf;
uint size = Map::Size();
SlSetLength(size);
for (TileIndex i = 0; i != size;) {
for (uint j = 0; j != MAP_SL_BUF_SIZE; j++) buf[j] = Tile(i++).m4();
SlCopy(buf.data(), MAP_SL_BUF_SIZE, SLE_UINT8);
}
}
};
struct MAP5ChunkHandler : ChunkHandler {
MAP5ChunkHandler() : ChunkHandler('MAP5', CH_RIFF) {}
void Load() const override
{
std::array<byte, MAP_SL_BUF_SIZE> buf;
uint size = Map::Size();
for (TileIndex i = 0; i != size;) {
SlCopy(buf.data(), MAP_SL_BUF_SIZE, SLE_UINT8);
for (uint j = 0; j != MAP_SL_BUF_SIZE; j++) Tile(i++).m5() = buf[j];
}
}
void Save() const override
{
std::array<byte, MAP_SL_BUF_SIZE> buf;
uint size = Map::Size();
SlSetLength(size);
for (TileIndex i = 0; i != size;) {
for (uint j = 0; j != MAP_SL_BUF_SIZE; j++) buf[j] = Tile(i++).m5();
SlCopy(buf.data(), MAP_SL_BUF_SIZE, SLE_UINT8);
}
}
};
struct MAPEChunkHandler : ChunkHandler {
MAPEChunkHandler() : ChunkHandler('MAPE', CH_RIFF) {}
void Load() const override
{
std::array<byte, MAP_SL_BUF_SIZE> buf;
uint size = Map::Size();
if (IsSavegameVersionBefore(SLV_42)) {
for (TileIndex i = 0; i != size;) {
/* 1024, otherwise we overflow on 64x64 maps! */
SlCopy(buf.data(), 1024, SLE_UINT8);
for (uint j = 0; j != 1024; j++) {
Tile(i++).m6() = GB(buf[j], 0, 2);
Tile(i++).m6() = GB(buf[j], 2, 2);
Tile(i++).m6() = GB(buf[j], 4, 2);
Tile(i++).m6() = GB(buf[j], 6, 2);
}
}
} else {
for (TileIndex i = 0; i != size;) {
SlCopy(buf.data(), MAP_SL_BUF_SIZE, SLE_UINT8);
for (uint j = 0; j != MAP_SL_BUF_SIZE; j++) Tile(i++).m6() = buf[j];
}
}
}
void Save() const override
{
std::array<byte, MAP_SL_BUF_SIZE> buf;
uint size = Map::Size();
SlSetLength(size);
for (TileIndex i = 0; i != size;) {
for (uint j = 0; j != MAP_SL_BUF_SIZE; j++) buf[j] = Tile(i++).m6();
SlCopy(buf.data(), MAP_SL_BUF_SIZE, SLE_UINT8);
}
}
};
struct MAP7ChunkHandler : ChunkHandler {
MAP7ChunkHandler() : ChunkHandler('MAP7', CH_RIFF) {}
void Load() const override
{
std::array<byte, MAP_SL_BUF_SIZE> buf;
uint size = Map::Size();
for (TileIndex i = 0; i != size;) {
SlCopy(buf.data(), MAP_SL_BUF_SIZE, SLE_UINT8);
for (uint j = 0; j != MAP_SL_BUF_SIZE; j++) Tile(i++).m7() = buf[j];
}
}
void Save() const override
{
std::array<byte, MAP_SL_BUF_SIZE> buf;
uint size = Map::Size();
SlSetLength(size);
for (TileIndex i = 0; i != size;) {
for (uint j = 0; j != MAP_SL_BUF_SIZE; j++) buf[j] = Tile(i++).m7();
SlCopy(buf.data(), MAP_SL_BUF_SIZE, SLE_UINT8);
}
}
};
struct MAP8ChunkHandler : ChunkHandler {
MAP8ChunkHandler() : ChunkHandler('MAP8', CH_RIFF) {}
void Load() const override
{
std::array<uint16_t, MAP_SL_BUF_SIZE> buf;
uint size = Map::Size();
for (TileIndex i = 0; i != size;) {
SlCopy(buf.data(), MAP_SL_BUF_SIZE, SLE_UINT16);
for (uint j = 0; j != MAP_SL_BUF_SIZE; j++) Tile(i++).m8() = buf[j];
}
}
void Save() const override
{
std::array<uint16_t, MAP_SL_BUF_SIZE> buf;
uint size = Map::Size();
SlSetLength(static_cast<uint32_t>(size) * sizeof(uint16_t));
for (TileIndex i = 0; i != size;) {
for (uint j = 0; j != MAP_SL_BUF_SIZE; j++) buf[j] = Tile(i++).m8();
SlCopy(buf.data(), MAP_SL_BUF_SIZE, SLE_UINT16);
}
}
};
static const MAPSChunkHandler MAPS;
static const MAPTChunkHandler MAPT;
static const MAPHChunkHandler MAPH;
static const MAPOChunkHandler MAPO;
static const MAP2ChunkHandler MAP2;
static const M3LOChunkHandler M3LO;
static const M3HIChunkHandler M3HI;
static const MAP5ChunkHandler MAP5;
static const MAPEChunkHandler MAPE;
static const MAP7ChunkHandler MAP7;
static const MAP8ChunkHandler MAP8;
static const ChunkHandlerRef map_chunk_handlers[] = {
MAPS,
MAPT,
MAPH,
MAPO,
MAP2,
M3LO,
M3HI,
MAP5,
MAPE,
MAP7,
MAP8,
};
extern const ChunkHandlerTable _map_chunk_handlers(map_chunk_handlers);
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