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Preallocate vectors with known size.

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This commit is contained in:
Dubhghlas McLaughlin
2025-05-22 16:14:28 -05:00
parent 63ca87f9ff
commit c97ca14537
7 changed files with 285 additions and 157 deletions
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149
core/io/json.cpp
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@@ -869,8 +869,11 @@ Variant JSON::_from_native(const Variant &p_variant, bool p_full_objects, int p_
ERR_FAIL_COND_V_MSG(p_depth > Variant::MAX_RECURSION_DEPTH, ret, "Variant is too deep. Bailing.");
for (int i = 0; i < arr.size(); i++) {
args.push_back(_from_native(arr[i], p_full_objects, p_depth + 1));
size_t arr_size = arr.size();
args.resize(arr_size);
for (size_t i = 0; i < arr_size; i++) {
args[i] = _from_native(arr[i], p_full_objects, p_depth + 1);
}
return ret;
@@ -880,8 +883,10 @@ Variant JSON::_from_native(const Variant &p_variant, bool p_full_objects, int p_
const PackedByteArray arr = p_variant;
Array args;
for (int i = 0; i < arr.size(); i++) {
args.push_back(arr[i]);
size_t arr_size = arr.size();
args.resize(arr_size);
for (size_t i = 0; i < arr_size; i++) {
args[i] = arr[i];
}
RETURN_ARGS;
@@ -890,8 +895,10 @@ Variant JSON::_from_native(const Variant &p_variant, bool p_full_objects, int p_
const PackedInt32Array arr = p_variant;
Array args;
for (int i = 0; i < arr.size(); i++) {
args.push_back(arr[i]);
size_t arr_size = arr.size();
args.resize(arr_size);
for (size_t i = 0; i < arr_size; i++) {
args[i] = arr[i];
}
RETURN_ARGS;
@@ -900,8 +907,10 @@ Variant JSON::_from_native(const Variant &p_variant, bool p_full_objects, int p_
const PackedInt64Array arr = p_variant;
Array args;
for (int i = 0; i < arr.size(); i++) {
args.push_back(arr[i]);
size_t arr_size = arr.size();
args.resize(arr_size);
for (size_t i = 0; i < arr_size; i++) {
args[i] = arr[i];
}
RETURN_ARGS;
@@ -910,8 +919,10 @@ Variant JSON::_from_native(const Variant &p_variant, bool p_full_objects, int p_
const PackedFloat32Array arr = p_variant;
Array args;
for (int i = 0; i < arr.size(); i++) {
args.push_back(arr[i]);
size_t arr_size = arr.size();
args.resize(arr_size);
for (size_t i = 0; i < arr_size; i++) {
args[i] = arr[i];
}
RETURN_ARGS;
@@ -920,8 +931,10 @@ Variant JSON::_from_native(const Variant &p_variant, bool p_full_objects, int p_
const PackedFloat64Array arr = p_variant;
Array args;
for (int i = 0; i < arr.size(); i++) {
args.push_back(arr[i]);
size_t arr_size = arr.size();
args.resize(arr_size);
for (size_t i = 0; i < arr_size; i++) {
args[i] = arr[i];
}
RETURN_ARGS;
@@ -930,8 +943,10 @@ Variant JSON::_from_native(const Variant &p_variant, bool p_full_objects, int p_
const PackedStringArray arr = p_variant;
Array args;
for (int i = 0; i < arr.size(); i++) {
args.push_back(arr[i]);
size_t arr_size = arr.size();
args.resize(arr_size);
for (size_t i = 0; i < arr_size; i++) {
args[i] = arr[i];
}
RETURN_ARGS;
@@ -940,10 +955,13 @@ Variant JSON::_from_native(const Variant &p_variant, bool p_full_objects, int p_
const PackedVector2Array arr = p_variant;
Array args;
for (int i = 0; i < arr.size(); i++) {
size_t arr_size = arr.size();
args.resize(arr_size * 2);
size_t nice_index = 0;
for (size_t i = 0; i < arr_size; i++) {
Vector2 v = arr[i];
args.push_back(v.x);
args.push_back(v.y);
args[nice_index++] = v.x;
args[nice_index++] = v.y;
}
RETURN_ARGS;
@@ -952,11 +970,14 @@ Variant JSON::_from_native(const Variant &p_variant, bool p_full_objects, int p_
const PackedVector3Array arr = p_variant;
Array args;
for (int i = 0; i < arr.size(); i++) {
size_t arr_size = arr.size();
args.resize(arr_size * 3);
size_t nice_index = 0;
for (size_t i = 0; i < arr_size; i++) {
Vector3 v = arr[i];
args.push_back(v.x);
args.push_back(v.y);
args.push_back(v.z);
args[nice_index++] = v.x;
args[nice_index++] = v.y;
args[nice_index++] = v.z;
}
RETURN_ARGS;
@@ -965,12 +986,15 @@ Variant JSON::_from_native(const Variant &p_variant, bool p_full_objects, int p_
const PackedColorArray arr = p_variant;
Array args;
for (int i = 0; i < arr.size(); i++) {
size_t arr_size = arr.size();
args.resize(arr_size * 4);
size_t nice_index = 0;
for (size_t i = 0; i < arr_size; i++) {
Color v = arr[i];
args.push_back(v.r);
args.push_back(v.g);
args.push_back(v.b);
args.push_back(v.a);
args[nice_index++] = v.r;
args[nice_index++] = v.g;
args[nice_index++] = v.b;
args[nice_index++] = v.a;
}
RETURN_ARGS;
@@ -979,12 +1003,15 @@ Variant JSON::_from_native(const Variant &p_variant, bool p_full_objects, int p_
const PackedVector4Array arr = p_variant;
Array args;
for (int i = 0; i < arr.size(); i++) {
size_t arr_size = arr.size();
args.resize(arr_size * 4);
size_t nice_index = 0;
for (size_t i = 0; i < arr_size; i++) {
Vector4 v = arr[i];
args.push_back(v.x);
args.push_back(v.y);
args.push_back(v.z);
args.push_back(v.w);
args[nice_index++] = v.x;
args[nice_index++] = v.y;
args[nice_index++] = v.z;
args[nice_index++] = v.w;
}
RETURN_ARGS;
@@ -1314,8 +1341,9 @@ Variant JSON::_to_native(const Variant &p_json, bool p_allow_objects, int p_dept
ERR_FAIL_COND_V_MSG(p_depth > Variant::MAX_RECURSION_DEPTH, ret, "Variant is too deep. Bailing.");
ret.resize(args.size());
for (int i = 0; i < args.size(); i++) {
size_t args_size = args.size();
ret.resize(args_size);
for (size_t i = 0; i < args_size; i++) {
ret[i] = _to_native(args[i], p_allow_objects, p_depth + 1);
}
@@ -1326,8 +1354,9 @@ Variant JSON::_to_native(const Variant &p_json, bool p_allow_objects, int p_dept
LOAD_ARGS();
PackedByteArray arr;
arr.resize(args.size());
for (int i = 0; i < arr.size(); i++) {
size_t args_size = args.size();
arr.resize(args_size);
for (size_t i = 0; i < args_size; i++) {
arr.write[i] = args[i];
}
@@ -1337,8 +1366,9 @@ Variant JSON::_to_native(const Variant &p_json, bool p_allow_objects, int p_dept
LOAD_ARGS();
PackedInt32Array arr;
arr.resize(args.size());
for (int i = 0; i < arr.size(); i++) {
size_t args_size = args.size();
arr.resize(args_size);
for (size_t i = 0; i < args_size; i++) {
arr.write[i] = args[i];
}
@@ -1348,8 +1378,9 @@ Variant JSON::_to_native(const Variant &p_json, bool p_allow_objects, int p_dept
LOAD_ARGS();
PackedInt64Array arr;
arr.resize(args.size());
for (int i = 0; i < arr.size(); i++) {
size_t args_size = args.size();
arr.resize(args_size);
for (size_t i = 0; i < args_size; i++) {
arr.write[i] = args[i];
}
@@ -1359,8 +1390,9 @@ Variant JSON::_to_native(const Variant &p_json, bool p_allow_objects, int p_dept
LOAD_ARGS();
PackedFloat32Array arr;
arr.resize(args.size());
for (int i = 0; i < arr.size(); i++) {
size_t args_size = args.size();
arr.resize(args_size);
for (size_t i = 0; i < args_size; i++) {
arr.write[i] = args[i];
}
@@ -1370,8 +1402,9 @@ Variant JSON::_to_native(const Variant &p_json, bool p_allow_objects, int p_dept
LOAD_ARGS();
PackedFloat64Array arr;
arr.resize(args.size());
for (int i = 0; i < arr.size(); i++) {
size_t args_size = args.size();
arr.resize(args_size);
for (size_t i = 0; i < args_size; i++) {
arr.write[i] = args[i];
}
@@ -1381,8 +1414,9 @@ Variant JSON::_to_native(const Variant &p_json, bool p_allow_objects, int p_dept
LOAD_ARGS();
PackedStringArray arr;
arr.resize(args.size());
for (int i = 0; i < arr.size(); i++) {
size_t args_size = args.size();
arr.resize(args_size);
for (size_t i = 0; i < args_size; i++) {
arr.write[i] = args[i];
}
@@ -1392,8 +1426,9 @@ Variant JSON::_to_native(const Variant &p_json, bool p_allow_objects, int p_dept
LOAD_ARGS_CHECK_FACTOR(2);
PackedVector2Array arr;
arr.resize(args.size() / 2);
for (int i = 0; i < arr.size(); i++) {
size_t args_size = args.size() / 2;
arr.resize(args_size);
for (size_t i = 0; i < args_size; i++) {
arr.write[i] = Vector2(args[i * 2 + 0], args[i * 2 + 1]);
}
@@ -1403,8 +1438,9 @@ Variant JSON::_to_native(const Variant &p_json, bool p_allow_objects, int p_dept
LOAD_ARGS_CHECK_FACTOR(3);
PackedVector3Array arr;
arr.resize(args.size() / 3);
for (int i = 0; i < arr.size(); i++) {
size_t args_size = args.size() / 3;
arr.resize(args_size);
for (size_t i = 0; i < args_size; i++) {
arr.write[i] = Vector3(args[i * 3 + 0], args[i * 3 + 1], args[i * 3 + 2]);
}
@@ -1414,8 +1450,9 @@ Variant JSON::_to_native(const Variant &p_json, bool p_allow_objects, int p_dept
LOAD_ARGS_CHECK_FACTOR(4);
PackedColorArray arr;
arr.resize(args.size() / 4);
for (int i = 0; i < arr.size(); i++) {
size_t args_size = args.size() / 4;
arr.resize(args_size);
for (size_t i = 0; i < args_size; i++) {
arr.write[i] = Color(args[i * 4 + 0], args[i * 4 + 1], args[i * 4 + 2], args[i * 4 + 3]);
}
@@ -1425,8 +1462,9 @@ Variant JSON::_to_native(const Variant &p_json, bool p_allow_objects, int p_dept
LOAD_ARGS_CHECK_FACTOR(4);
PackedVector4Array arr;
arr.resize(args.size() / 4);
for (int i = 0; i < arr.size(); i++) {
size_t args_size = args.size() / 4;
arr.resize(args_size);
for (size_t i = 0; i < args_size; i++) {
arr.write[i] = Vector4(args[i * 4 + 0], args[i * 4 + 1], args[i * 4 + 2], args[i * 4 + 3]);
}
@@ -1497,8 +1535,9 @@ Variant JSON::_to_native(const Variant &p_json, bool p_allow_objects, int p_dept
const Array arr = p_json;
Array ret;
ret.resize(arr.size());
for (int i = 0; i < arr.size(); i++) {
size_t arr_size = arr.size();
ret.resize(arr_size);
for (size_t i = 0; i < arr_size; i++) {
ret[i] = _to_native(arr[i], p_allow_objects, p_depth + 1);
}