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Reduce size of ContentFeatures structure

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On my system this is a reduction from 4664 to 3704 bytes.
This is not for the sake of saving RAM but ensuring
commonly used structures fit into caches better.
This commit is contained in:
sfan5
2022-05-09 20:59:28 +02:00
parent 9a01581cdd
commit 8b74257bf3
4 changed files with 143 additions and 125 deletions
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62
src/mapnode.cpp
View File

@@ -266,10 +266,12 @@ void transformNodeBox(const MapNode &n, const NodeBox &nodebox,
std::vector<aabb3f> &boxes = *p_boxes;
if (nodebox.type == NODEBOX_FIXED || nodebox.type == NODEBOX_LEVELED) {
const std::vector<aabb3f> &fixed = nodebox.fixed;
const auto &fixed = nodebox.fixed;
int facedir = n.getFaceDir(nodemgr, true);
u8 axisdir = facedir>>2;
facedir&=0x03;
boxes.reserve(boxes.size() + fixed.size());
for (aabb3f box : fixed) {
if (nodebox.type == NODEBOX_LEVELED)
box.MaxEdge.Y = (-0.5f + n.getLevel(nodemgr) / 64.0f) * BS;
@@ -437,41 +439,43 @@ void transformNodeBox(const MapNode &n, const NodeBox &nodebox,
{
size_t boxes_size = boxes.size();
boxes_size += nodebox.fixed.size();
const auto &c = nodebox.getConnected();
if (neighbors & 1)
boxes_size += nodebox.connect_top.size();
boxes_size += c.connect_top.size();
else
boxes_size += nodebox.disconnected_top.size();
boxes_size += c.disconnected_top.size();
if (neighbors & 2)
boxes_size += nodebox.connect_bottom.size();
boxes_size += c.connect_bottom.size();
else
boxes_size += nodebox.disconnected_bottom.size();
boxes_size += c.disconnected_bottom.size();
if (neighbors & 4)
boxes_size += nodebox.connect_front.size();
boxes_size += c.connect_front.size();
else
boxes_size += nodebox.disconnected_front.size();
boxes_size += c.disconnected_front.size();
if (neighbors & 8)
boxes_size += nodebox.connect_left.size();
boxes_size += c.connect_left.size();
else
boxes_size += nodebox.disconnected_left.size();
boxes_size += c.disconnected_left.size();
if (neighbors & 16)
boxes_size += nodebox.connect_back.size();
boxes_size += c.connect_back.size();
else
boxes_size += nodebox.disconnected_back.size();
boxes_size += c.disconnected_back.size();
if (neighbors & 32)
boxes_size += nodebox.connect_right.size();
boxes_size += c.connect_right.size();
else
boxes_size += nodebox.disconnected_right.size();
boxes_size += c.disconnected_right.size();
if (neighbors == 0)
boxes_size += nodebox.disconnected.size();
boxes_size += c.disconnected.size();
if (neighbors < 4)
boxes_size += nodebox.disconnected_sides.size();
boxes_size += c.disconnected_sides.size();
boxes.reserve(boxes_size);
@@ -484,47 +488,47 @@ void transformNodeBox(const MapNode &n, const NodeBox &nodebox,
BOXESPUSHBACK(nodebox.fixed);
if (neighbors & 1) {
BOXESPUSHBACK(nodebox.connect_top);
BOXESPUSHBACK(c.connect_top);
} else {
BOXESPUSHBACK(nodebox.disconnected_top);
BOXESPUSHBACK(c.disconnected_top);
}
if (neighbors & 2) {
BOXESPUSHBACK(nodebox.connect_bottom);
BOXESPUSHBACK(c.connect_bottom);
} else {
BOXESPUSHBACK(nodebox.disconnected_bottom);
BOXESPUSHBACK(c.disconnected_bottom);
}
if (neighbors & 4) {
BOXESPUSHBACK(nodebox.connect_front);
BOXESPUSHBACK(c.connect_front);
} else {
BOXESPUSHBACK(nodebox.disconnected_front);
BOXESPUSHBACK(c.disconnected_front);
}
if (neighbors & 8) {
BOXESPUSHBACK(nodebox.connect_left);
BOXESPUSHBACK(c.connect_left);
} else {
BOXESPUSHBACK(nodebox.disconnected_left);
BOXESPUSHBACK(c.disconnected_left);
}
if (neighbors & 16) {
BOXESPUSHBACK(nodebox.connect_back);
BOXESPUSHBACK(c.connect_back);
} else {
BOXESPUSHBACK(nodebox.disconnected_back);
BOXESPUSHBACK(c.disconnected_back);
}
if (neighbors & 32) {
BOXESPUSHBACK(nodebox.connect_right);
BOXESPUSHBACK(c.connect_right);
} else {
BOXESPUSHBACK(nodebox.disconnected_right);
BOXESPUSHBACK(c.disconnected_right);
}
if (neighbors == 0) {
BOXESPUSHBACK(nodebox.disconnected);
BOXESPUSHBACK(c.disconnected);
}
if (neighbors < 4) {
BOXESPUSHBACK(nodebox.disconnected_sides);
BOXESPUSHBACK(c.disconnected_sides);
}
}

119
src/nodedef.cpp
View File

@@ -56,20 +56,7 @@ void NodeBox::reset()
wall_bottom = aabb3f(-BS/2, -BS/2, -BS/2, BS/2, -BS/2+BS/16., BS/2);
wall_side = aabb3f(-BS/2, -BS/2, -BS/2, -BS/2+BS/16., BS/2, BS/2);
// no default for other parts
connect_top.clear();
connect_bottom.clear();
connect_front.clear();
connect_left.clear();
connect_back.clear();
connect_right.clear();
disconnected_top.clear();
disconnected_bottom.clear();
disconnected_front.clear();
disconnected_left.clear();
disconnected_back.clear();
disconnected_right.clear();
disconnected.clear();
disconnected_sides.clear();
connected.reset();
}
void NodeBox::serialize(std::ostream &os, u16 protocol_version) const
@@ -99,7 +86,7 @@ void NodeBox::serialize(std::ostream &os, u16 protocol_version) const
writeV3F32(os, wall_side.MinEdge);
writeV3F32(os, wall_side.MaxEdge);
break;
case NODEBOX_CONNECTED:
case NODEBOX_CONNECTED: {
writeU8(os, type);
#define WRITEBOX(box) \
@@ -109,22 +96,25 @@ void NodeBox::serialize(std::ostream &os, u16 protocol_version) const
writeV3F32(os, i.MaxEdge); \
};
const auto &c = getConnected();
WRITEBOX(fixed);
WRITEBOX(connect_top);
WRITEBOX(connect_bottom);
WRITEBOX(connect_front);
WRITEBOX(connect_left);
WRITEBOX(connect_back);
WRITEBOX(connect_right);
WRITEBOX(disconnected_top);
WRITEBOX(disconnected_bottom);
WRITEBOX(disconnected_front);
WRITEBOX(disconnected_left);
WRITEBOX(disconnected_back);
WRITEBOX(disconnected_right);
WRITEBOX(disconnected);
WRITEBOX(disconnected_sides);
WRITEBOX(c.connect_top);
WRITEBOX(c.connect_bottom);
WRITEBOX(c.connect_front);
WRITEBOX(c.connect_left);
WRITEBOX(c.connect_back);
WRITEBOX(c.connect_right);
WRITEBOX(c.disconnected_top);
WRITEBOX(c.disconnected_bottom);
WRITEBOX(c.disconnected_front);
WRITEBOX(c.disconnected_left);
WRITEBOX(c.disconnected_back);
WRITEBOX(c.disconnected_right);
WRITEBOX(c.disconnected);
WRITEBOX(c.disconnected_sides);
break;
}
default:
writeU8(os, type);
break;
@@ -173,21 +163,23 @@ void NodeBox::deSerialize(std::istream &is)
u16 count;
auto &c = getConnected();
READBOXES(fixed);
READBOXES(connect_top);
READBOXES(connect_bottom);
READBOXES(connect_front);
READBOXES(connect_left);
READBOXES(connect_back);
READBOXES(connect_right);
READBOXES(disconnected_top);
READBOXES(disconnected_bottom);
READBOXES(disconnected_front);
READBOXES(disconnected_left);
READBOXES(disconnected_back);
READBOXES(disconnected_right);
READBOXES(disconnected);
READBOXES(disconnected_sides);
READBOXES(c.connect_top);
READBOXES(c.connect_bottom);
READBOXES(c.connect_front);
READBOXES(c.connect_left);
READBOXES(c.connect_back);
READBOXES(c.connect_right);
READBOXES(c.disconnected_top);
READBOXES(c.disconnected_bottom);
READBOXES(c.disconnected_front);
READBOXES(c.disconnected_left);
READBOXES(c.disconnected_back);
READBOXES(c.disconnected_right);
READBOXES(c.disconnected);
READBOXES(c.disconnected_sides);
}
}
@@ -409,9 +401,9 @@ void ContentFeatures::reset()
drowning = 0;
light_source = 0;
damage_per_second = 0;
node_box = NodeBox();
selection_box = NodeBox();
collision_box = NodeBox();
node_box.reset();
selection_box.reset();
collision_box.reset();
waving = 0;
legacy_facedir_simple = false;
legacy_wallmounted = false;
@@ -1091,10 +1083,8 @@ void NodeDefManager::clear()
{
ContentFeatures f;
f.name = "unknown";
TileDef unknownTile;
unknownTile.name = "unknown_node.png";
for (int t = 0; t < 6; t++)
f.tiledef[t] = unknownTile;
f.tiledef[t].name = "unknown_node.png";
// Insert directly into containers
content_t c = CONTENT_UNKNOWN;
m_content_features[c] = f;
@@ -1296,22 +1286,23 @@ void getNodeBoxUnion(const NodeBox &nodebox, const ContentFeatures &features,
break;
}
case NODEBOX_CONNECTED: {
const auto &c = nodebox.getConnected();
// Add all possible connected boxes
boxVectorUnion(nodebox.fixed, box_union);
boxVectorUnion(nodebox.connect_top, box_union);
boxVectorUnion(nodebox.connect_bottom, box_union);
boxVectorUnion(nodebox.connect_front, box_union);
boxVectorUnion(nodebox.connect_left, box_union);
boxVectorUnion(nodebox.connect_back, box_union);
boxVectorUnion(nodebox.connect_right, box_union);
boxVectorUnion(nodebox.disconnected_top, box_union);
boxVectorUnion(nodebox.disconnected_bottom, box_union);
boxVectorUnion(nodebox.disconnected_front, box_union);
boxVectorUnion(nodebox.disconnected_left, box_union);
boxVectorUnion(nodebox.disconnected_back, box_union);
boxVectorUnion(nodebox.disconnected_right, box_union);
boxVectorUnion(nodebox.disconnected, box_union);
boxVectorUnion(nodebox.disconnected_sides, box_union);
boxVectorUnion(nodebox.fixed, box_union);
boxVectorUnion(c.connect_top, box_union);
boxVectorUnion(c.connect_bottom, box_union);
boxVectorUnion(c.connect_front, box_union);
boxVectorUnion(c.connect_left, box_union);
boxVectorUnion(c.connect_back, box_union);
boxVectorUnion(c.connect_right, box_union);
boxVectorUnion(c.disconnected_top, box_union);
boxVectorUnion(c.disconnected_bottom, box_union);
boxVectorUnion(c.disconnected_front, box_union);
boxVectorUnion(c.disconnected_left, box_union);
boxVectorUnion(c.disconnected_back, box_union);
boxVectorUnion(c.disconnected_right, box_union);
boxVectorUnion(c.disconnected, box_union);
boxVectorUnion(c.disconnected_sides, box_union);
break;
}
default: {

38
src/nodedef.h
View File

@@ -99,17 +99,8 @@ enum NodeBoxType
NODEBOX_CONNECTED, // optionally draws nodeboxes if a neighbor node attaches
};
struct NodeBox
struct NodeBoxConnected
{
enum NodeBoxType type;
// NODEBOX_REGULAR (no parameters)
// NODEBOX_FIXED
std::vector<aabb3f> fixed;
// NODEBOX_WALLMOUNTED
aabb3f wall_top;
aabb3f wall_bottom;
aabb3f wall_side; // being at the -X side
// NODEBOX_CONNECTED
std::vector<aabb3f> connect_top;
std::vector<aabb3f> connect_bottom;
std::vector<aabb3f> connect_front;
@@ -124,9 +115,35 @@ struct NodeBox
std::vector<aabb3f> disconnected_right;
std::vector<aabb3f> disconnected;
std::vector<aabb3f> disconnected_sides;
};
struct NodeBox
{
enum NodeBoxType type;
// NODEBOX_REGULAR (no parameters)
// NODEBOX_FIXED
std::vector<aabb3f> fixed;
// NODEBOX_WALLMOUNTED
aabb3f wall_top;
aabb3f wall_bottom;
aabb3f wall_side; // being at the -X side
// NODEBOX_CONNECTED
// (kept externally to not bloat the structure)
std::shared_ptr<NodeBoxConnected> connected;
NodeBox()
{ reset(); }
~NodeBox() = default;
inline NodeBoxConnected &getConnected() {
if (!connected)
connected = std::make_shared<NodeBoxConnected>();
return *connected;
}
inline const NodeBoxConnected &getConnected() const {
assert(connected);
return *connected;
}
void reset();
void serialize(std::ostream &os, u16 protocol_version) const;
@@ -290,7 +307,6 @@ struct ContentFeatures
// up down right left back front
TileSpec tiles[6];
// Special tiles
// - Currently used for flowing liquids
TileSpec special_tiles[CF_SPECIAL_COUNT];
u8 solidness; // Used when choosing which face is drawn
u8 visual_solidness; // When solidness=0, this tells how it looks like

49
src/script/common/c_content.cpp
View File

@@ -1000,22 +1000,25 @@ void push_nodebox(lua_State *L, const NodeBox &box)
push_aabb3f(L, box.wall_side);
lua_setfield(L, -2, "wall_side");
break;
case NODEBOX_CONNECTED:
case NODEBOX_CONNECTED: {
lua_pushstring(L, "connected");
lua_setfield(L, -2, "type");
push_box(L, box.connect_top);
const auto &c = box.getConnected();
push_box(L, c.connect_top);
lua_setfield(L, -2, "connect_top");
push_box(L, box.connect_bottom);
push_box(L, c.connect_bottom);
lua_setfield(L, -2, "connect_bottom");
push_box(L, box.connect_front);
push_box(L, c.connect_front);
lua_setfield(L, -2, "connect_front");
push_box(L, box.connect_back);
push_box(L, c.connect_back);
lua_setfield(L, -2, "connect_back");
push_box(L, box.connect_left);
push_box(L, c.connect_left);
lua_setfield(L, -2, "connect_left");
push_box(L, box.connect_right);
push_box(L, c.connect_right);
lua_setfield(L, -2, "connect_right");
// half the boxes are missing here?
break;
}
default:
FATAL_ERROR("Invalid box.type");
break;
@@ -1143,20 +1146,24 @@ NodeBox read_nodebox(lua_State *L, int index)
NODEBOXREAD(nodebox.wall_top, "wall_top");
NODEBOXREAD(nodebox.wall_bottom, "wall_bottom");
NODEBOXREAD(nodebox.wall_side, "wall_side");
NODEBOXREADVEC(nodebox.connect_top, "connect_top");
NODEBOXREADVEC(nodebox.connect_bottom, "connect_bottom");
NODEBOXREADVEC(nodebox.connect_front, "connect_front");
NODEBOXREADVEC(nodebox.connect_left, "connect_left");
NODEBOXREADVEC(nodebox.connect_back, "connect_back");
NODEBOXREADVEC(nodebox.connect_right, "connect_right");
NODEBOXREADVEC(nodebox.disconnected_top, "disconnected_top");
NODEBOXREADVEC(nodebox.disconnected_bottom, "disconnected_bottom");
NODEBOXREADVEC(nodebox.disconnected_front, "disconnected_front");
NODEBOXREADVEC(nodebox.disconnected_left, "disconnected_left");
NODEBOXREADVEC(nodebox.disconnected_back, "disconnected_back");
NODEBOXREADVEC(nodebox.disconnected_right, "disconnected_right");
NODEBOXREADVEC(nodebox.disconnected, "disconnected");
NODEBOXREADVEC(nodebox.disconnected_sides, "disconnected_sides");
if (nodebox.type == NODEBOX_CONNECTED) {
auto &c = nodebox.getConnected();
NODEBOXREADVEC(c.connect_top, "connect_top");
NODEBOXREADVEC(c.connect_bottom, "connect_bottom");
NODEBOXREADVEC(c.connect_front, "connect_front");
NODEBOXREADVEC(c.connect_left, "connect_left");
NODEBOXREADVEC(c.connect_back, "connect_back");
NODEBOXREADVEC(c.connect_right, "connect_right");
NODEBOXREADVEC(c.disconnected_top, "disconnected_top");
NODEBOXREADVEC(c.disconnected_bottom, "disconnected_bottom");
NODEBOXREADVEC(c.disconnected_front, "disconnected_front");
NODEBOXREADVEC(c.disconnected_left, "disconnected_left");
NODEBOXREADVEC(c.disconnected_back, "disconnected_back");
NODEBOXREADVEC(c.disconnected_right, "disconnected_right");
NODEBOXREADVEC(c.disconnected, "disconnected");
NODEBOXREADVEC(c.disconnected_sides, "disconnected_sides");
}
return nodebox;
}