Codechange: Use std::vector for NewGRF station tile sprite layouts.

(cherry picked from commit a3e49178d1)

src/newgrf.cpp

@@ -1939,13 +1939,13 @@ static ChangeInfoResult StationChangeInfo(uint stid, int numinfo, int prop, cons
 				break;
 			}
 
-			case 0x09: // Define sprite layout
+			case 0x09: { // Define sprite layout
-				statspec->tiles = buf->ReadExtendedByte();
+				uint16 tiles = buf->ReadExtendedByte();
-				delete[] statspec->renderdata; // delete earlier loaded stuff
+				statspec->renderdata.clear(); // delete earlier loaded stuff
-				statspec->renderdata = new NewGRFSpriteLayout[statspec->tiles];
+				statspec->renderdata.reserve(tiles);
 
-				for (uint t = 0; t < statspec->tiles; t++) {
+				for (uint t = 0; t < tiles; t++) {
-					NewGRFSpriteLayout *dts = &statspec->renderdata[t];
+					NewGRFSpriteLayout *dts = &statspec->renderdata.emplace_back();
 					dts->consistent_max_offset = UINT16_MAX; // Spritesets are unknown, so no limit.
 
 					if (buf->HasData(4) && *(unaligned_uint32*)buf->Data() == 0) {
@@ -1981,6 +1981,7 @@ static ChangeInfoResult StationChangeInfo(uint stid, int numinfo, int prop, cons
 					dts->Clone(tmp_layout.data());
 				}
 				break;
+			}
 
 			case 0x0A: { // Copy sprite layout
 				byte srcid = buf->ReadByte();
@@ -1991,12 +1992,12 @@ static ChangeInfoResult StationChangeInfo(uint stid, int numinfo, int prop, cons
 					continue;
 				}
 
-				delete[] statspec->renderdata; // delete earlier loaded stuff
+				statspec->renderdata.clear(); // delete earlier loaded stuff
+				statspec->renderdata.reserve(srcstatspec->renderdata.size());
 
-				statspec->tiles = srcstatspec->tiles;
+				for (const auto &it : srcstatspec->renderdata) {
-				statspec->renderdata = new NewGRFSpriteLayout[statspec->tiles];
+					NewGRFSpriteLayout *dts = &statspec->renderdata.emplace_back();
-				for (uint t = 0; t < statspec->tiles; t++) {
+					dts->Clone(&it);
-					statspec->renderdata[t].Clone(&srcstatspec->renderdata[t]);
 				}
 				break;
 			}
@@ -2082,18 +2083,19 @@ static ChangeInfoResult StationChangeInfo(uint stid, int numinfo, int prop, cons
 				statspec->animation.triggers = buf->ReadWord();
 				break;
 
-			case 0x1A: // Advanced sprite layout
+			case 0x1A: { // Advanced sprite layout
-				statspec->tiles = buf->ReadExtendedByte();
+				uint16 tiles = buf->ReadExtendedByte();
-				delete[] statspec->renderdata; // delete earlier loaded stuff
+				statspec->renderdata.clear(); // delete earlier loaded stuff
-				statspec->renderdata = new NewGRFSpriteLayout[statspec->tiles];
+				statspec->renderdata.reserve(tiles);
 
-				for (uint t = 0; t < statspec->tiles; t++) {
+				for (uint t = 0; t < tiles; t++) {
-					NewGRFSpriteLayout *dts = &statspec->renderdata[t];
+					NewGRFSpriteLayout *dts = &statspec->renderdata.emplace_back();
 					uint num_building_sprites = buf->ReadByte();
 					/* On error, bail out immediately. Temporary GRF data was already freed */
 					if (ReadSpriteLayout(buf, num_building_sprites, false, GSF_STATIONS, true, false, dts)) return CIR_DISABLED;
 				}
 				break;
+			}
 
 			case A0RPI_STATION_MIN_BRIDGE_HEIGHT:
 				if (MappedPropertyLengthMismatch(buf, 8, mapping_entry)) break;
@@ -8993,8 +8995,6 @@ static void ResetCustomStations()
 			if (stations[i] == nullptr) continue;
 			StationSpec *statspec = stations[i];
 
-			delete[] statspec->renderdata;
-
 			/* Release this station */
 			delete statspec;
 		}

src/newgrf_station.cpp

@@ -800,10 +800,10 @@ bool DrawStationTile(int x, int y, RailType railtype, Axis axis, StationClassID
 	const NewGRFSpriteLayout *layout = nullptr;
 	DrawTileSprites tmp_rail_layout;
 
-	if (statspec->renderdata == nullptr) {
+	if (statspec->renderdata.empty()) {
 		sprites = GetStationTileLayout(STATION_RAIL, tile + axis);
 	} else {
-		layout = &statspec->renderdata[(tile < statspec->tiles) ? tile + axis : (uint)axis];
+		layout = &statspec->renderdata[(tile < statspec->renderdata.size()) ? tile + axis : (uint)axis];
 		if (!layout->NeedsPreprocessing()) {
 			sprites = layout;
 			layout = nullptr;

src/newgrf_station.h

@@ -119,8 +119,8 @@ enum StationSpecIntlFlags {
 /** Station specification. */
 struct StationSpec {
 	StationSpec() : cls_id(STAT_CLASS_DFLT), name(0),
-		disallowed_platforms(0), disallowed_lengths(0), tiles(0),
+		disallowed_platforms(0), disallowed_lengths(0),
-		renderdata(nullptr), cargo_threshold(0), cargo_triggers(0),
+		cargo_threshold(0), cargo_triggers(0),
 		callback_mask(0), flags(0), pylons(0), wires(0), blocked(0),
 		animation({0, 0, 0, 0}), internal_flags(0) {}
 	/**
@@ -152,8 +152,7 @@ struct StationSpec {
 	 * 4-5 = platform with roof, left side
 	 * 6-7 = platform with roof, right side
 	 */
-	uint tiles;
+	std::vector<NewGRFSpriteLayout> renderdata; ///< Array of tile layouts.
-	NewGRFSpriteLayout *renderdata; ///< Array of tile layouts.
 
 	/**
 	 * Cargo threshold for choosing between little and lots of cargo

src/station_cmd.cpp

@@ -3087,8 +3087,8 @@ static void DrawTile_Station(TileInfo *ti, DrawTileProcParams params)
 				}
 
 				/* Ensure the chosen tile layout is valid for this custom station */
-				if (statspec->renderdata != nullptr) {
+				if (!statspec->renderdata.empty()) {
-					layout = &statspec->renderdata[tile_layout < statspec->tiles ? tile_layout : (uint)GetRailStationAxis(ti->tile)];
+					layout = &statspec->renderdata[tile_layout < statspec->renderdata.size() ? tile_layout : (uint)GetRailStationAxis(ti->tile)];
 					if (!layout->NeedsPreprocessing()) {
 						t = layout;
 						layout = nullptr;