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virtualx-engine/core/io/marshalls.cpp
Rémi Verschelde d95794ec8a
One Copyright Update to rule them all 
As many open source projects have started doing it, we're removing the
current year from the copyright notice, so that we don't need to bump
it every year.

It seems like only the first year of publication is technically
relevant for copyright notices, and even that seems to be something
that many companies stopped listing altogether (in a version controlled
codebase, the commits are a much better source of date of publication
than a hardcoded copyright statement).

We also now list Godot Engine contributors first as we're collectively
the current maintainers of the project, and we clarify that the
"exclusive" copyright of the co-founders covers the timespan before
opensourcing (their further contributions are included as part of Godot
Engine contributors).

Also fixed "cf." Frenchism - it's meant as "refer to / see".
2023-01-05 13:25:55 +01:00

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/**************************************************************************/
/* marshalls.cpp */
/**************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/**************************************************************************/
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/**************************************************************************/
#include "marshalls.h"
#include "core/object/ref_counted.h"
#include "core/os/keyboard.h"
#include "core/string/print_string.h"
#include <limits.h>
#include <stdio.h>
void EncodedObjectAsID::_bind_methods() {
ClassDB::bind_method(D_METHOD("set_object_id", "id"), &EncodedObjectAsID::set_object_id);
ClassDB::bind_method(D_METHOD("get_object_id"), &EncodedObjectAsID::get_object_id);
ADD_PROPERTY(PropertyInfo(Variant::INT, "object_id"), "set_object_id", "get_object_id");
}
void EncodedObjectAsID::set_object_id(ObjectID p_id) {
id = p_id;
}
ObjectID EncodedObjectAsID::get_object_id() const {
return id;
}
#define ERR_FAIL_ADD_OF(a, b, err) ERR_FAIL_COND_V(((int32_t)(b)) < 0 || ((int32_t)(a)) < 0 || ((int32_t)(a)) > INT_MAX - ((int32_t)(b)), err)
#define ERR_FAIL_MUL_OF(a, b, err) ERR_FAIL_COND_V(((int32_t)(a)) < 0 || ((int32_t)(b)) <= 0 || ((int32_t)(a)) > INT_MAX / ((int32_t)(b)), err)
#define ENCODE_MASK 0xFF
#define ENCODE_FLAG_64 1 << 16
#define ENCODE_FLAG_OBJECT_AS_ID 1 << 16
static Error _decode_string(const uint8_t *&buf, int &len, int *r_len, String &r_string) {
ERR_FAIL_COND_V(len < 4, ERR_INVALID_DATA);
int32_t strlen = decode_uint32(buf);
int32_t pad = 0;
// Handle padding
if (strlen % 4) {
pad = 4 - strlen % 4;
}
buf += 4;
len -= 4;
// Ensure buffer is big enough
ERR_FAIL_ADD_OF(strlen, pad, ERR_FILE_EOF);
ERR_FAIL_COND_V(strlen < 0 || strlen + pad > len, ERR_FILE_EOF);
String str;
ERR_FAIL_COND_V(str.parse_utf8((const char *)buf, strlen) != OK, ERR_INVALID_DATA);
r_string = str;
// Add padding
strlen += pad;
// Update buffer pos, left data count, and return size
buf += strlen;
len -= strlen;
if (r_len) {
(*r_len) += 4 + strlen;
}
return OK;
}
Error decode_variant(Variant &r_variant, const uint8_t *p_buffer, int p_len, int *r_len, bool p_allow_objects, int p_depth) {
ERR_FAIL_COND_V_MSG(p_depth > Variant::MAX_RECURSION_DEPTH, ERR_OUT_OF_MEMORY, "Variant is too deep. Bailing.");
const uint8_t *buf = p_buffer;
int len = p_len;
ERR_FAIL_COND_V(len < 4, ERR_INVALID_DATA);
uint32_t type = decode_uint32(buf);
ERR_FAIL_COND_V((type & ENCODE_MASK) >= Variant::VARIANT_MAX, ERR_INVALID_DATA);
buf += 4;
len -= 4;
if (r_len) {
*r_len = 4;
}
// Note: We cannot use sizeof(real_t) for decoding, in case a different size is encoded.
// Decoding math types always checks for the encoded size, while encoding always uses compilation setting.
// This does lead to some code duplication for decoding, but compatibility is the priority.
switch (type & ENCODE_MASK) {
case Variant::NIL: {
r_variant = Variant();
} break;
case Variant::BOOL: {
ERR_FAIL_COND_V(len < 4, ERR_INVALID_DATA);
bool val = decode_uint32(buf);
r_variant = val;
if (r_len) {
(*r_len) += 4;
}
} break;
case Variant::INT: {
if (type & ENCODE_FLAG_64) {
ERR_FAIL_COND_V(len < 8, ERR_INVALID_DATA);
int64_t val = decode_uint64(buf);
r_variant = val;
if (r_len) {
(*r_len) += 8;
}
} else {
ERR_FAIL_COND_V(len < 4, ERR_INVALID_DATA);
int32_t val = decode_uint32(buf);
r_variant = val;
if (r_len) {
(*r_len) += 4;
}
}
} break;
case Variant::FLOAT: {
if (type & ENCODE_FLAG_64) {
ERR_FAIL_COND_V((size_t)len < sizeof(double), ERR_INVALID_DATA);
double val = decode_double(buf);
r_variant = val;
if (r_len) {
(*r_len) += sizeof(double);
}
} else {
ERR_FAIL_COND_V((size_t)len < sizeof(float), ERR_INVALID_DATA);
float val = decode_float(buf);
r_variant = val;
if (r_len) {
(*r_len) += sizeof(float);
}
}
} break;
case Variant::STRING: {
String str;
Error err = _decode_string(buf, len, r_len, str);
if (err) {
return err;
}
r_variant = str;
} break;
// math types
case Variant::VECTOR2: {
Vector2 val;
if (type & ENCODE_FLAG_64) {
ERR_FAIL_COND_V((size_t)len < sizeof(double) * 2, ERR_INVALID_DATA);
val.x = decode_double(&buf[0]);
val.y = decode_double(&buf[sizeof(double)]);
if (r_len) {
(*r_len) += sizeof(double) * 2;
}
} else {
ERR_FAIL_COND_V((size_t)len < sizeof(float) * 2, ERR_INVALID_DATA);
val.x = decode_float(&buf[0]);
val.y = decode_float(&buf[sizeof(float)]);
if (r_len) {
(*r_len) += sizeof(float) * 2;
}
}
r_variant = val;
} break;
case Variant::VECTOR2I: {
ERR_FAIL_COND_V(len < 4 * 2, ERR_INVALID_DATA);
Vector2i val;
val.x = decode_uint32(&buf[0]);
val.y = decode_uint32(&buf[4]);
r_variant = val;
if (r_len) {
(*r_len) += 4 * 2;
}
} break;
case Variant::RECT2: {
Rect2 val;
if (type & ENCODE_FLAG_64) {
ERR_FAIL_COND_V((size_t)len < sizeof(double) * 4, ERR_INVALID_DATA);
val.position.x = decode_double(&buf[0]);
val.position.y = decode_double(&buf[sizeof(double)]);
val.size.x = decode_double(&buf[sizeof(double) * 2]);
val.size.y = decode_double(&buf[sizeof(double) * 3]);
if (r_len) {
(*r_len) += sizeof(double) * 4;
}
} else {
ERR_FAIL_COND_V((size_t)len < sizeof(float) * 4, ERR_INVALID_DATA);
val.position.x = decode_float(&buf[0]);
val.position.y = decode_float(&buf[sizeof(float)]);
val.size.x = decode_float(&buf[sizeof(float) * 2]);
val.size.y = decode_float(&buf[sizeof(float) * 3]);
if (r_len) {
(*r_len) += sizeof(float) * 4;
}
}
r_variant = val;
} break;
case Variant::RECT2I: {
ERR_FAIL_COND_V(len < 4 * 4, ERR_INVALID_DATA);
Rect2i val;
val.position.x = decode_uint32(&buf[0]);
val.position.y = decode_uint32(&buf[4]);
val.size.x = decode_uint32(&buf[8]);
val.size.y = decode_uint32(&buf[12]);
r_variant = val;
if (r_len) {
(*r_len) += 4 * 4;
}
} break;
case Variant::VECTOR3: {
Vector3 val;
if (type & ENCODE_FLAG_64) {
ERR_FAIL_COND_V((size_t)len < sizeof(double) * 3, ERR_INVALID_DATA);
val.x = decode_double(&buf[0]);
val.y = decode_double(&buf[sizeof(double)]);
val.z = decode_double(&buf[sizeof(double) * 2]);
if (r_len) {
(*r_len) += sizeof(double) * 3;
}
} else {
ERR_FAIL_COND_V((size_t)len < sizeof(float) * 3, ERR_INVALID_DATA);
val.x = decode_float(&buf[0]);
val.y = decode_float(&buf[sizeof(float)]);
val.z = decode_float(&buf[sizeof(float) * 2]);
if (r_len) {
(*r_len) += sizeof(float) * 3;
}
}
r_variant = val;
} break;
case Variant::VECTOR3I: {
ERR_FAIL_COND_V(len < 4 * 3, ERR_INVALID_DATA);
Vector3i val;
val.x = decode_uint32(&buf[0]);
val.y = decode_uint32(&buf[4]);
val.z = decode_uint32(&buf[8]);
r_variant = val;
if (r_len) {
(*r_len) += 4 * 3;
}
} break;
case Variant::VECTOR4: {
Vector4 val;
if (type & ENCODE_FLAG_64) {
ERR_FAIL_COND_V((size_t)len < sizeof(double) * 4, ERR_INVALID_DATA);
val.x = decode_double(&buf[0]);
val.y = decode_double(&buf[sizeof(double)]);
val.z = decode_double(&buf[sizeof(double) * 2]);
val.w = decode_double(&buf[sizeof(double) * 3]);
if (r_len) {
(*r_len) += sizeof(double) * 4;
}
} else {
ERR_FAIL_COND_V((size_t)len < sizeof(float) * 4, ERR_INVALID_DATA);
val.x = decode_float(&buf[0]);
val.y = decode_float(&buf[sizeof(float)]);
val.z = decode_float(&buf[sizeof(float) * 2]);
val.w = decode_float(&buf[sizeof(float) * 3]);
if (r_len) {
(*r_len) += sizeof(float) * 4;
}
}
r_variant = val;
} break;
case Variant::VECTOR4I: {
ERR_FAIL_COND_V(len < 4 * 4, ERR_INVALID_DATA);
Vector4i val;
val.x = decode_uint32(&buf[0]);
val.y = decode_uint32(&buf[4]);
val.z = decode_uint32(&buf[8]);
val.w = decode_uint32(&buf[12]);
r_variant = val;
if (r_len) {
(*r_len) += 4 * 4;
}
} break;
case Variant::TRANSFORM2D: {
Transform2D val;
if (type & ENCODE_FLAG_64) {
ERR_FAIL_COND_V((size_t)len < sizeof(double) * 6, ERR_INVALID_DATA);
for (int i = 0; i < 3; i++) {
for (int j = 0; j < 2; j++) {
val.columns[i][j] = decode_double(&buf[(i * 2 + j) * sizeof(double)]);
}
}
if (r_len) {
(*r_len) += sizeof(double) * 6;
}
} else {
ERR_FAIL_COND_V((size_t)len < sizeof(float) * 6, ERR_INVALID_DATA);
for (int i = 0; i < 3; i++) {
for (int j = 0; j < 2; j++) {
val.columns[i][j] = decode_float(&buf[(i * 2 + j) * sizeof(float)]);
}
}
if (r_len) {
(*r_len) += sizeof(float) * 6;
}
}
r_variant = val;
} break;
case Variant::PLANE: {
Plane val;
if (type & ENCODE_FLAG_64) {
ERR_FAIL_COND_V((size_t)len < sizeof(double) * 4, ERR_INVALID_DATA);
val.normal.x = decode_double(&buf[0]);
val.normal.y = decode_double(&buf[sizeof(double)]);
val.normal.z = decode_double(&buf[sizeof(double) * 2]);
val.d = decode_double(&buf[sizeof(double) * 3]);
if (r_len) {
(*r_len) += sizeof(double) * 4;
}
} else {
ERR_FAIL_COND_V((size_t)len < sizeof(float) * 4, ERR_INVALID_DATA);
val.normal.x = decode_float(&buf[0]);
val.normal.y = decode_float(&buf[sizeof(float)]);
val.normal.z = decode_float(&buf[sizeof(float) * 2]);
val.d = decode_float(&buf[sizeof(float) * 3]);
if (r_len) {
(*r_len) += sizeof(float) * 4;
}
}
r_variant = val;
} break;
case Variant::QUATERNION: {
Quaternion val;
if (type & ENCODE_FLAG_64) {
ERR_FAIL_COND_V((size_t)len < sizeof(double) * 4, ERR_INVALID_DATA);
val.x = decode_double(&buf[0]);
val.y = decode_double(&buf[sizeof(double)]);
val.z = decode_double(&buf[sizeof(double) * 2]);
val.w = decode_double(&buf[sizeof(double) * 3]);
if (r_len) {
(*r_len) += sizeof(double) * 4;
}
} else {
ERR_FAIL_COND_V((size_t)len < sizeof(float) * 4, ERR_INVALID_DATA);
val.x = decode_float(&buf[0]);
val.y = decode_float(&buf[sizeof(float)]);
val.z = decode_float(&buf[sizeof(float) * 2]);
val.w = decode_float(&buf[sizeof(float) * 3]);
if (r_len) {
(*r_len) += sizeof(float) * 4;
}
}
r_variant = val;
} break;
case Variant::AABB: {
AABB val;
if (type & ENCODE_FLAG_64) {
ERR_FAIL_COND_V((size_t)len < sizeof(double) * 6, ERR_INVALID_DATA);
val.position.x = decode_double(&buf[0]);
val.position.y = decode_double(&buf[sizeof(double)]);
val.position.z = decode_double(&buf[sizeof(double) * 2]);
val.size.x = decode_double(&buf[sizeof(double) * 3]);
val.size.y = decode_double(&buf[sizeof(double) * 4]);
val.size.z = decode_double(&buf[sizeof(double) * 5]);
if (r_len) {
(*r_len) += sizeof(double) * 6;
}
} else {
ERR_FAIL_COND_V((size_t)len < sizeof(float) * 6, ERR_INVALID_DATA);
val.position.x = decode_float(&buf[0]);
val.position.y = decode_float(&buf[sizeof(float)]);
val.position.z = decode_float(&buf[sizeof(float) * 2]);
val.size.x = decode_float(&buf[sizeof(float) * 3]);
val.size.y = decode_float(&buf[sizeof(float) * 4]);
val.size.z = decode_float(&buf[sizeof(float) * 5]);
if (r_len) {
(*r_len) += sizeof(float) * 6;
}
}
r_variant = val;
} break;
case Variant::BASIS: {
Basis val;
if (type & ENCODE_FLAG_64) {
ERR_FAIL_COND_V((size_t)len < sizeof(double) * 9, ERR_INVALID_DATA);
for (int i = 0; i < 3; i++) {
for (int j = 0; j < 3; j++) {
val.rows[i][j] = decode_double(&buf[(i * 3 + j) * sizeof(double)]);
}
}
if (r_len) {
(*r_len) += sizeof(double) * 9;
}
} else {
ERR_FAIL_COND_V((size_t)len < sizeof(float) * 9, ERR_INVALID_DATA);
for (int i = 0; i < 3; i++) {
for (int j = 0; j < 3; j++) {
val.rows[i][j] = decode_float(&buf[(i * 3 + j) * sizeof(float)]);
}
}
if (r_len) {
(*r_len) += sizeof(float) * 9;
}
}
r_variant = val;
} break;
case Variant::TRANSFORM3D: {
Transform3D val;
if (type & ENCODE_FLAG_64) {
ERR_FAIL_COND_V((size_t)len < sizeof(double) * 12, ERR_INVALID_DATA);
for (int i = 0; i < 3; i++) {
for (int j = 0; j < 3; j++) {
val.basis.rows[i][j] = decode_double(&buf[(i * 3 + j) * sizeof(double)]);
}
}
val.origin[0] = decode_double(&buf[sizeof(double) * 9]);
val.origin[1] = decode_double(&buf[sizeof(double) * 10]);
val.origin[2] = decode_double(&buf[sizeof(double) * 11]);
if (r_len) {
(*r_len) += sizeof(double) * 12;
}
} else {
ERR_FAIL_COND_V((size_t)len < sizeof(float) * 12, ERR_INVALID_DATA);
for (int i = 0; i < 3; i++) {
for (int j = 0; j < 3; j++) {
val.basis.rows[i][j] = decode_float(&buf[(i * 3 + j) * sizeof(float)]);
}
}
val.origin[0] = decode_float(&buf[sizeof(float) * 9]);
val.origin[1] = decode_float(&buf[sizeof(float) * 10]);
val.origin[2] = decode_float(&buf[sizeof(float) * 11]);
if (r_len) {
(*r_len) += sizeof(float) * 12;
}
}
r_variant = val;
} break;
case Variant::PROJECTION: {
Projection val;
if (type & ENCODE_FLAG_64) {
ERR_FAIL_COND_V((size_t)len < sizeof(double) * 16, ERR_INVALID_DATA);
for (int i = 0; i < 4; i++) {
for (int j = 0; j < 4; j++) {
val.columns[i][j] = decode_double(&buf[(i * 4 + j) * sizeof(double)]);
}
}
if (r_len) {
(*r_len) += sizeof(double) * 16;
}
} else {
ERR_FAIL_COND_V((size_t)len < sizeof(float) * 16, ERR_INVALID_DATA);
for (int i = 0; i < 4; i++) {
for (int j = 0; j < 4; j++) {
val.columns[i][j] = decode_float(&buf[(i * 4 + j) * sizeof(float)]);
}
}
if (r_len) {
(*r_len) += sizeof(float) * 16;
}
}
r_variant = val;
} break;
// misc types
case Variant::COLOR: {
ERR_FAIL_COND_V(len < 4 * 4, ERR_INVALID_DATA);
Color val;
val.r = decode_float(&buf[0]);
val.g = decode_float(&buf[4]);
val.b = decode_float(&buf[8]);
val.a = decode_float(&buf[12]);
r_variant = val;
if (r_len) {
(*r_len) += 4 * 4; // Colors should always be in single-precision.
}
} break;
case Variant::STRING_NAME: {
String str;
Error err = _decode_string(buf, len, r_len, str);
if (err) {
return err;
}
r_variant = StringName(str);
} break;
case Variant::NODE_PATH: {
ERR_FAIL_COND_V(len < 4, ERR_INVALID_DATA);
int32_t strlen = decode_uint32(buf);
if (strlen & 0x80000000) {
//new format
ERR_FAIL_COND_V(len < 12, ERR_INVALID_DATA);
Vector<StringName> names;
Vector<StringName> subnames;
uint32_t namecount = strlen &= 0x7FFFFFFF;
uint32_t subnamecount = decode_uint32(buf + 4);
uint32_t flags = decode_uint32(buf + 8);
len -= 12;
buf += 12;
if (flags & 2) { // Obsolete format with property separate from subpath
subnamecount++;
}
uint32_t total = namecount + subnamecount;
if (r_len) {
(*r_len) += 12;
}
for (uint32_t i = 0; i < total; i++) {
String str;
Error err = _decode_string(buf, len, r_len, str);
if (err) {
return err;
}
if (i < namecount) {
names.push_back(str);
} else {
subnames.push_back(str);
}
}
r_variant = NodePath(names, subnames, flags & 1);
} else {
//old format, just a string
ERR_FAIL_V(ERR_INVALID_DATA);
}
} break;
case Variant::RID: {
ERR_FAIL_COND_V(len < 8, ERR_INVALID_DATA);
uint64_t id = decode_uint64(buf);
if (r_len) {
(*r_len) += 8;
}
r_variant = RID::from_uint64(id);
} break;
case Variant::OBJECT: {
if (type & ENCODE_FLAG_OBJECT_AS_ID) {
//this _is_ allowed
ERR_FAIL_COND_V(len < 8, ERR_INVALID_DATA);
ObjectID val = ObjectID(decode_uint64(buf));
if (r_len) {
(*r_len) += 8;
}
if (val.is_null()) {
r_variant = (Object *)nullptr;
} else {
Ref<EncodedObjectAsID> obj_as_id;
obj_as_id.instantiate();
obj_as_id->set_object_id(val);
r_variant = obj_as_id;
}
} else {
ERR_FAIL_COND_V(!p_allow_objects, ERR_UNAUTHORIZED);
String str;
Error err = _decode_string(buf, len, r_len, str);
if (err) {
return err;
}
if (str.is_empty()) {
r_variant = (Object *)nullptr;
} else {
Object *obj = ClassDB::instantiate(str);
ERR_FAIL_COND_V(!obj, ERR_UNAVAILABLE);
ERR_FAIL_COND_V(len < 4, ERR_INVALID_DATA);
int32_t count = decode_uint32(buf);
buf += 4;
len -= 4;
if (r_len) {
(*r_len) += 4; // Size of count number.
}
for (int i = 0; i < count; i++) {
str = String();
err = _decode_string(buf, len, r_len, str);
if (err) {
return err;
}
Variant value;
int used;
err = decode_variant(value, buf, len, &used, p_allow_objects, p_depth + 1);
if (err) {
return err;
}
buf += used;
len -= used;
if (r_len) {
(*r_len) += used;
}
obj->set(str, value);
}
if (Object::cast_to<RefCounted>(obj)) {
Ref<RefCounted> ref = Ref<RefCounted>(Object::cast_to<RefCounted>(obj));
r_variant = ref;
} else {
r_variant = obj;
}
}
}
} break;
case Variant::CALLABLE: {
r_variant = Callable();
} break;
case Variant::SIGNAL: {
String name;
Error err = _decode_string(buf, len, r_len, name);
if (err) {
return err;
}
ERR_FAIL_COND_V(len < 8, ERR_INVALID_DATA);
ObjectID id = ObjectID(decode_uint64(buf));
if (r_len) {
(*r_len) += 8;
}
r_variant = Signal(id, StringName(name));
} break;
case Variant::DICTIONARY: {
ERR_FAIL_COND_V(len < 4, ERR_INVALID_DATA);
int32_t count = decode_uint32(buf);
// bool shared = count&0x80000000;
count &= 0x7FFFFFFF;
buf += 4;
len -= 4;
if (r_len) {
(*r_len) += 4; // Size of count number.
}
Dictionary d;
for (int i = 0; i < count; i++) {
Variant key, value;
int used;
Error err = decode_variant(key, buf, len, &used, p_allow_objects, p_depth + 1);
ERR_FAIL_COND_V_MSG(err != OK, err, "Error when trying to decode Variant.");
buf += used;
len -= used;
if (r_len) {
(*r_len) += used;
}
err = decode_variant(value, buf, len, &used, p_allow_objects, p_depth + 1);
ERR_FAIL_COND_V_MSG(err != OK, err, "Error when trying to decode Variant.");
buf += used;
len -= used;
if (r_len) {
(*r_len) += used;
}
d[key] = value;
}
r_variant = d;
} break;
case Variant::ARRAY: {
ERR_FAIL_COND_V(len < 4, ERR_INVALID_DATA);
int32_t count = decode_uint32(buf);
// bool shared = count&0x80000000;
count &= 0x7FFFFFFF;
buf += 4;
len -= 4;
if (r_len) {
(*r_len) += 4; // Size of count number.
}
Array varr;
for (int i = 0; i < count; i++) {
int used = 0;
Variant v;
Error err = decode_variant(v, buf, len, &used, p_allow_objects, p_depth + 1);
ERR_FAIL_COND_V_MSG(err != OK, err, "Error when trying to decode Variant.");
buf += used;
len -= used;
varr.push_back(v);
if (r_len) {
(*r_len) += used;
}
}
r_variant = varr;
} break;
// arrays
case Variant::PACKED_BYTE_ARRAY: {
ERR_FAIL_COND_V(len < 4, ERR_INVALID_DATA);
int32_t count = decode_uint32(buf);
buf += 4;
len -= 4;
ERR_FAIL_COND_V(count < 0 || count > len, ERR_INVALID_DATA);
Vector<uint8_t> data;
if (count) {
data.resize(count);
uint8_t *w = data.ptrw();
for (int32_t i = 0; i < count; i++) {
w[i] = buf[i];
}
}
r_variant = data;
if (r_len) {
if (count % 4) {
(*r_len) += 4 - count % 4;
}
(*r_len) += 4 + count;
}
} break;
case Variant::PACKED_INT32_ARRAY: {
ERR_FAIL_COND_V(len < 4, ERR_INVALID_DATA);
int32_t count = decode_uint32(buf);
buf += 4;
len -= 4;
ERR_FAIL_MUL_OF(count, 4, ERR_INVALID_DATA);
ERR_FAIL_COND_V(count < 0 || count * 4 > len, ERR_INVALID_DATA);
Vector<int32_t> data;
if (count) {
//const int*rbuf=(const int*)buf;
data.resize(count);
int32_t *w = data.ptrw();
for (int32_t i = 0; i < count; i++) {
w[i] = decode_uint32(&buf[i * 4]);
}
}
r_variant = Variant(data);
if (r_len) {
(*r_len) += 4 + count * sizeof(int32_t);
}
} break;
case Variant::PACKED_INT64_ARRAY: {
ERR_FAIL_COND_V(len < 4, ERR_INVALID_DATA);
int32_t count = decode_uint32(buf);
buf += 4;
len -= 4;
ERR_FAIL_MUL_OF(count, 8, ERR_INVALID_DATA);
ERR_FAIL_COND_V(count < 0 || count * 8 > len, ERR_INVALID_DATA);
Vector<int64_t> data;
if (count) {
//const int*rbuf=(const int*)buf;
data.resize(count);
int64_t *w = data.ptrw();
for (int64_t i = 0; i < count; i++) {
w[i] = decode_uint64(&buf[i * 8]);
}
}
r_variant = Variant(data);
if (r_len) {
(*r_len) += 4 + count * sizeof(int64_t);
}
} break;
case Variant::PACKED_FLOAT32_ARRAY: {
ERR_FAIL_COND_V(len < 4, ERR_INVALID_DATA);
int32_t count = decode_uint32(buf);
buf += 4;
len -= 4;
ERR_FAIL_MUL_OF(count, 4, ERR_INVALID_DATA);
ERR_FAIL_COND_V(count < 0 || count * 4 > len, ERR_INVALID_DATA);
Vector<float> data;
if (count) {
//const float*rbuf=(const float*)buf;
data.resize(count);
float *w = data.ptrw();
for (int32_t i = 0; i < count; i++) {
w[i] = decode_float(&buf[i * 4]);
}
}
r_variant = data;
if (r_len) {
(*r_len) += 4 + count * sizeof(float);
}
} break;
case Variant::PACKED_FLOAT64_ARRAY: {
ERR_FAIL_COND_V(len < 4, ERR_INVALID_DATA);
int32_t count = decode_uint32(buf);
buf += 4;
len -= 4;
ERR_FAIL_MUL_OF(count, 8, ERR_INVALID_DATA);
ERR_FAIL_COND_V(count < 0 || count * 8 > len, ERR_INVALID_DATA);
Vector<double> data;
if (count) {
data.resize(count);
double *w = data.ptrw();
for (int64_t i = 0; i < count; i++) {
w[i] = decode_double(&buf[i * 8]);
}
}
r_variant = data;
if (r_len) {
(*r_len) += 4 + count * sizeof(double);
}
} break;
case Variant::PACKED_STRING_ARRAY: {
ERR_FAIL_COND_V(len < 4, ERR_INVALID_DATA);
int32_t count = decode_uint32(buf);
Vector<String> strings;
buf += 4;
len -= 4;
if (r_len) {
(*r_len) += 4; // Size of count number.
}
for (int32_t i = 0; i < count; i++) {
String str;
Error err = _decode_string(buf, len, r_len, str);
if (err) {
return err;
}
strings.push_back(str);
}
r_variant = strings;
} break;
case Variant::PACKED_VECTOR2_ARRAY: {
ERR_FAIL_COND_V(len < 4, ERR_INVALID_DATA);
int32_t count = decode_uint32(buf);
buf += 4;
len -= 4;
Vector<Vector2> varray;
if (type & ENCODE_FLAG_64) {
ERR_FAIL_MUL_OF(count, sizeof(double) * 2, ERR_INVALID_DATA);
ERR_FAIL_COND_V(count < 0 || count * sizeof(double) * 2 > (size_t)len, ERR_INVALID_DATA);
if (r_len) {
(*r_len) += 4; // Size of count number.
}
if (count) {
varray.resize(count);
Vector2 *w = varray.ptrw();
for (int32_t i = 0; i < count; i++) {
w[i].x = decode_double(buf + i * sizeof(double) * 2 + sizeof(double) * 0);
w[i].y = decode_double(buf + i * sizeof(double) * 2 + sizeof(double) * 1);
}
int adv = sizeof(double) * 2 * count;
if (r_len) {
(*r_len) += adv;
}
len -= adv;
buf += adv;
}
} else {
ERR_FAIL_MUL_OF(count, sizeof(float) * 2, ERR_INVALID_DATA);
ERR_FAIL_COND_V(count < 0 || count * sizeof(float) * 2 > (size_t)len, ERR_INVALID_DATA);
if (r_len) {
(*r_len) += 4; // Size of count number.
}
if (count) {
varray.resize(count);
Vector2 *w = varray.ptrw();
for (int32_t i = 0; i < count; i++) {
w[i].x = decode_float(buf + i * sizeof(float) * 2 + sizeof(float) * 0);
w[i].y = decode_float(buf + i * sizeof(float) * 2 + sizeof(float) * 1);
}
int adv = sizeof(float) * 2 * count;
if (r_len) {
(*r_len) += adv;
}
}
}
r_variant = varray;
} break;
case Variant::PACKED_VECTOR3_ARRAY: {
ERR_FAIL_COND_V(len < 4, ERR_INVALID_DATA);
int32_t count = decode_uint32(buf);
buf += 4;
len -= 4;
Vector<Vector3> varray;
if (type & ENCODE_FLAG_64) {
ERR_FAIL_MUL_OF(count, sizeof(double) * 3, ERR_INVALID_DATA);
ERR_FAIL_COND_V(count < 0 || count * sizeof(double) * 3 > (size_t)len, ERR_INVALID_DATA);
if (r_len) {
(*r_len) += 4; // Size of count number.
}
if (count) {
varray.resize(count);
Vector3 *w = varray.ptrw();
for (int32_t i = 0; i < count; i++) {
w[i].x = decode_double(buf + i * sizeof(double) * 3 + sizeof(double) * 0);
w[i].y = decode_double(buf + i * sizeof(double) * 3 + sizeof(double) * 1);
w[i].z = decode_double(buf + i * sizeof(double) * 3 + sizeof(double) * 2);
}
int adv = sizeof(double) * 3 * count;
if (r_len) {
(*r_len) += adv;
}
len -= adv;
buf += adv;
}
} else {
ERR_FAIL_MUL_OF(count, sizeof(float) * 3, ERR_INVALID_DATA);
ERR_FAIL_COND_V(count < 0 || count * sizeof(float) * 3 > (size_t)len, ERR_INVALID_DATA);
if (r_len) {
(*r_len) += 4; // Size of count number.
}
if (count) {
varray.resize(count);
Vector3 *w = varray.ptrw();
for (int32_t i = 0; i < count; i++) {
w[i].x = decode_float(buf + i * sizeof(float) * 3 + sizeof(float) * 0);
w[i].y = decode_float(buf + i * sizeof(float) * 3 + sizeof(float) * 1);
w[i].z = decode_float(buf + i * sizeof(float) * 3 + sizeof(float) * 2);
}
int adv = sizeof(float) * 3 * count;
if (r_len) {
(*r_len) += adv;
}
len -= adv;
buf += adv;
}
}
r_variant = varray;
} break;
case Variant::PACKED_COLOR_ARRAY: {
ERR_FAIL_COND_V(len < 4, ERR_INVALID_DATA);
int32_t count = decode_uint32(buf);
buf += 4;
len -= 4;
ERR_FAIL_MUL_OF(count, 4 * 4, ERR_INVALID_DATA);
ERR_FAIL_COND_V(count < 0 || count * 4 * 4 > len, ERR_INVALID_DATA);
Vector<Color> carray;
if (r_len) {
(*r_len) += 4; // Size of count number.
}
if (count) {
carray.resize(count);
Color *w = carray.ptrw();
for (int32_t i = 0; i < count; i++) {
// Colors should always be in single-precision.
w[i].r = decode_float(buf + i * 4 * 4 + 4 * 0);
w[i].g = decode_float(buf + i * 4 * 4 + 4 * 1);
w[i].b = decode_float(buf + i * 4 * 4 + 4 * 2);
w[i].a = decode_float(buf + i * 4 * 4 + 4 * 3);
}
int adv = 4 * 4 * count;
if (r_len) {
(*r_len) += adv;
}
}
r_variant = carray;
} break;
default: {
ERR_FAIL_V(ERR_BUG);
}
}
return OK;
}
static void _encode_string(const String &p_string, uint8_t *&buf, int &r_len) {
CharString utf8 = p_string.utf8();
if (buf) {
encode_uint32(utf8.length(), buf);
buf += 4;
memcpy(buf, utf8.get_data(), utf8.length());
buf += utf8.length();
}
r_len += 4 + utf8.length();
while (r_len % 4) {
r_len++; //pad
if (buf) {
*(buf++) = 0;
}
}
}
Error encode_variant(const Variant &p_variant, uint8_t *r_buffer, int &r_len, bool p_full_objects, int p_depth) {
ERR_FAIL_COND_V_MSG(p_depth > Variant::MAX_RECURSION_DEPTH, ERR_OUT_OF_MEMORY, "Potential infinite recursion detected. Bailing.");
uint8_t *buf = r_buffer;
r_len = 0;
uint32_t flags = 0;
switch (p_variant.get_type()) {
case Variant::INT: {
int64_t val = p_variant;
if (val > (int64_t)INT_MAX || val < (int64_t)INT_MIN) {
flags |= ENCODE_FLAG_64;
}
} break;
case Variant::FLOAT: {
double d = p_variant;
float f = d;
if (double(f) != d) {
flags |= ENCODE_FLAG_64;
}
} break;
case Variant::OBJECT: {
// Test for potential wrong values sent by the debugger when it breaks.
Object *obj = p_variant.get_validated_object();
if (!obj) {
// Object is invalid, send a nullptr instead.
if (buf) {
encode_uint32(Variant::NIL, buf);
}
r_len += 4;
return OK;
}
if (!p_full_objects) {
flags |= ENCODE_FLAG_OBJECT_AS_ID;
}
} break;
#ifdef REAL_T_IS_DOUBLE
case Variant::VECTOR2:
case Variant::VECTOR3:
case Variant::PACKED_VECTOR2_ARRAY:
case Variant::PACKED_VECTOR3_ARRAY:
case Variant::TRANSFORM2D:
case Variant::TRANSFORM3D:
case Variant::QUATERNION:
case Variant::PLANE:
case Variant::BASIS:
case Variant::RECT2:
case Variant::AABB: {
flags |= ENCODE_FLAG_64;
} break;
#endif // REAL_T_IS_DOUBLE
default: {
} // nothing to do at this stage
}
if (buf) {
encode_uint32(p_variant.get_type() | flags, buf);
buf += 4;
}
r_len += 4;
switch (p_variant.get_type()) {
case Variant::NIL: {
//nothing to do
} break;
case Variant::BOOL: {
if (buf) {
encode_uint32(p_variant.operator bool(), buf);
}
r_len += 4;
} break;
case Variant::INT: {
if (flags & ENCODE_FLAG_64) {
//64 bits
if (buf) {
encode_uint64(p_variant.operator int64_t(), buf);
}
r_len += 8;
} else {
if (buf) {
encode_uint32(p_variant.operator int32_t(), buf);
}
r_len += 4;
}
} break;
case Variant::FLOAT: {
if (flags & ENCODE_FLAG_64) {
if (buf) {
encode_double(p_variant.operator double(), buf);
}
r_len += 8;
} else {
if (buf) {
encode_float(p_variant.operator float(), buf);
}
r_len += 4;
}
} break;
case Variant::NODE_PATH: {
NodePath np = p_variant;
if (buf) {
encode_uint32(uint32_t(np.get_name_count()) | 0x80000000, buf); //for compatibility with the old format
encode_uint32(np.get_subname_count(), buf + 4);
uint32_t np_flags = 0;
if (np.is_absolute()) {
np_flags |= 1;
}
encode_uint32(np_flags, buf + 8);
buf += 12;
}
r_len += 12;
int total = np.get_name_count() + np.get_subname_count();
for (int i = 0; i < total; i++) {
String str;
if (i < np.get_name_count()) {
str = np.get_name(i);
} else {
str = np.get_subname(i - np.get_name_count());
}
CharString utf8 = str.utf8();
int pad = 0;
if (utf8.length() % 4) {
pad = 4 - utf8.length() % 4;
}
if (buf) {
encode_uint32(utf8.length(), buf);
buf += 4;
memcpy(buf, utf8.get_data(), utf8.length());
buf += pad + utf8.length();
}
r_len += 4 + utf8.length() + pad;
}
} break;
case Variant::STRING:
case Variant::STRING_NAME: {
_encode_string(p_variant, buf, r_len);
} break;
// math types
case Variant::VECTOR2: {
if (buf) {
Vector2 v2 = p_variant;
encode_real(v2.x, &buf[0]);
encode_real(v2.y, &buf[sizeof(real_t)]);
}
r_len += 2 * sizeof(real_t);
} break;
case Variant::VECTOR2I: {
if (buf) {
Vector2i v2 = p_variant;
encode_uint32(v2.x, &buf[0]);
encode_uint32(v2.y, &buf[4]);
}
r_len += 2 * 4;
} break;
case Variant::RECT2: {
if (buf) {
Rect2 r2 = p_variant;
encode_real(r2.position.x, &buf[0]);
encode_real(r2.position.y, &buf[sizeof(real_t)]);
encode_real(r2.size.x, &buf[sizeof(real_t) * 2]);
encode_real(r2.size.y, &buf[sizeof(real_t) * 3]);
}
r_len += 4 * sizeof(real_t);
} break;
case Variant::RECT2I: {
if (buf) {
Rect2i r2 = p_variant;
encode_uint32(r2.position.x, &buf[0]);
encode_uint32(r2.position.y, &buf[4]);
encode_uint32(r2.size.x, &buf[8]);
encode_uint32(r2.size.y, &buf[12]);
}
r_len += 4 * 4;
} break;
case Variant::VECTOR3: {
if (buf) {
Vector3 v3 = p_variant;
encode_real(v3.x, &buf[0]);
encode_real(v3.y, &buf[sizeof(real_t)]);
encode_real(v3.z, &buf[sizeof(real_t) * 2]);
}
r_len += 3 * sizeof(real_t);
} break;
case Variant::VECTOR3I: {
if (buf) {
Vector3i v3 = p_variant;
encode_uint32(v3.x, &buf[0]);
encode_uint32(v3.y, &buf[4]);
encode_uint32(v3.z, &buf[8]);
}
r_len += 3 * 4;
} break;
case Variant::TRANSFORM2D: {
if (buf) {
Transform2D val = p_variant;
for (int i = 0; i < 3; i++) {
for (int j = 0; j < 2; j++) {
memcpy(&buf[(i * 2 + j) * sizeof(real_t)], &val.columns[i][j], sizeof(real_t));
}
}
}
r_len += 6 * sizeof(real_t);
} break;
case Variant::VECTOR4: {
if (buf) {
Vector4 v4 = p_variant;
encode_real(v4.x, &buf[0]);
encode_real(v4.y, &buf[sizeof(real_t)]);
encode_real(v4.z, &buf[sizeof(real_t) * 2]);
encode_real(v4.w, &buf[sizeof(real_t) * 3]);
}
r_len += 4 * sizeof(real_t);
} break;
case Variant::VECTOR4I: {
if (buf) {
Vector4i v4 = p_variant;
encode_uint32(v4.x, &buf[0]);
encode_uint32(v4.y, &buf[4]);
encode_uint32(v4.z, &buf[8]);
encode_uint32(v4.w, &buf[12]);
}
r_len += 4 * 4;
} break;
case Variant::PLANE: {
if (buf) {
Plane p = p_variant;
encode_real(p.normal.x, &buf[0]);
encode_real(p.normal.y, &buf[sizeof(real_t)]);
encode_real(p.normal.z, &buf[sizeof(real_t) * 2]);
encode_real(p.d, &buf[sizeof(real_t) * 3]);
}
r_len += 4 * sizeof(real_t);
} break;
case Variant::QUATERNION: {
if (buf) {
Quaternion q = p_variant;
encode_real(q.x, &buf[0]);
encode_real(q.y, &buf[sizeof(real_t)]);
encode_real(q.z, &buf[sizeof(real_t) * 2]);
encode_real(q.w, &buf[sizeof(real_t) * 3]);
}
r_len += 4 * sizeof(real_t);
} break;
case Variant::AABB: {
if (buf) {
AABB aabb = p_variant;
encode_real(aabb.position.x, &buf[0]);
encode_real(aabb.position.y, &buf[sizeof(real_t)]);
encode_real(aabb.position.z, &buf[sizeof(real_t) * 2]);
encode_real(aabb.size.x, &buf[sizeof(real_t) * 3]);
encode_real(aabb.size.y, &buf[sizeof(real_t) * 4]);
encode_real(aabb.size.z, &buf[sizeof(real_t) * 5]);
}
r_len += 6 * sizeof(real_t);
} break;
case Variant::BASIS: {
if (buf) {
Basis val = p_variant;
for (int i = 0; i < 3; i++) {
for (int j = 0; j < 3; j++) {
memcpy(&buf[(i * 3 + j) * sizeof(real_t)], &val.rows[i][j], sizeof(real_t));
}
}
}
r_len += 9 * sizeof(real_t);
} break;
case Variant::TRANSFORM3D: {
if (buf) {
Transform3D val = p_variant;
for (int i = 0; i < 3; i++) {
for (int j = 0; j < 3; j++) {
memcpy(&buf[(i * 3 + j) * sizeof(real_t)], &val.basis.rows[i][j], sizeof(real_t));
}
}
encode_real(val.origin.x, &buf[sizeof(real_t) * 9]);
encode_real(val.origin.y, &buf[sizeof(real_t) * 10]);
encode_real(val.origin.z, &buf[sizeof(real_t) * 11]);
}
r_len += 12 * sizeof(real_t);
} break;
case Variant::PROJECTION: {
if (buf) {
Projection val = p_variant;
for (int i = 0; i < 4; i++) {
for (int j = 0; j < 4; j++) {
memcpy(&buf[(i * 4 + j) * sizeof(real_t)], &val.columns[i][j], sizeof(real_t));
}
}
}
r_len += 16 * sizeof(real_t);
} break;
// misc types
case Variant::COLOR: {
if (buf) {
Color c = p_variant;
encode_float(c.r, &buf[0]);
encode_float(c.g, &buf[4]);
encode_float(c.b, &buf[8]);
encode_float(c.a, &buf[12]);
}
r_len += 4 * 4; // Colors should always be in single-precision.
} break;
case Variant::RID: {
RID rid = p_variant;
if (buf) {
encode_uint64(rid.get_id(), buf);
}
r_len += 8;
} break;
case Variant::OBJECT: {
if (p_full_objects) {
Object *obj = p_variant;
if (!obj) {
if (buf) {
encode_uint32(0, buf);
}
r_len += 4;
} else {
_encode_string(obj->get_class(), buf, r_len);
List<PropertyInfo> props;
obj->get_property_list(&props);
int pc = 0;
for (const PropertyInfo &E : props) {
if (!(E.usage & PROPERTY_USAGE_STORAGE)) {
continue;
}
pc++;
}
if (buf) {
encode_uint32(pc, buf);
buf += 4;
}
r_len += 4;
for (const PropertyInfo &E : props) {
if (!(E.usage & PROPERTY_USAGE_STORAGE)) {
continue;
}
_encode_string(E.name, buf, r_len);
int len;
Error err = encode_variant(obj->get(E.name), buf, len, p_full_objects, p_depth + 1);
ERR_FAIL_COND_V(err, err);
ERR_FAIL_COND_V(len % 4, ERR_BUG);
r_len += len;
if (buf) {
buf += len;
}
}
}
} else {
if (buf) {
Object *obj = p_variant.get_validated_object();
ObjectID id;
if (obj) {
id = obj->get_instance_id();
}
encode_uint64(id, buf);
}
r_len += 8;
}
} break;
case Variant::CALLABLE: {
} break;
case Variant::SIGNAL: {
Signal signal = p_variant;
_encode_string(signal.get_name(), buf, r_len);
if (buf) {
encode_uint64(signal.get_object_id(), buf);
}
r_len += 8;
} break;
case Variant::DICTIONARY: {
Dictionary d = p_variant;
if (buf) {
encode_uint32(uint32_t(d.size()), buf);
buf += 4;
}
r_len += 4;
List<Variant> keys;
d.get_key_list(&keys);
for (const Variant &E : keys) {
int len;
Error err = encode_variant(E, buf, len, p_full_objects, p_depth + 1);
ERR_FAIL_COND_V(err, err);
ERR_FAIL_COND_V(len % 4, ERR_BUG);
r_len += len;
if (buf) {
buf += len;
}
Variant *v = d.getptr(E);
ERR_FAIL_COND_V(!v, ERR_BUG);
err = encode_variant(*v, buf, len, p_full_objects, p_depth + 1);
ERR_FAIL_COND_V(err, err);
ERR_FAIL_COND_V(len % 4, ERR_BUG);
r_len += len;
if (buf) {
buf += len;
}
}
} break;
case Variant::ARRAY: {
Array v = p_variant;
if (buf) {
encode_uint32(uint32_t(v.size()), buf);
buf += 4;
}
r_len += 4;
for (int i = 0; i < v.size(); i++) {
int len;
Error err = encode_variant(v.get(i), buf, len, p_full_objects, p_depth + 1);
ERR_FAIL_COND_V(err, err);
ERR_FAIL_COND_V(len % 4, ERR_BUG);
r_len += len;
if (buf) {
buf += len;
}
}
} break;
// arrays
case Variant::PACKED_BYTE_ARRAY: {
Vector<uint8_t> data = p_variant;
int datalen = data.size();
int datasize = sizeof(uint8_t);
if (buf) {
encode_uint32(datalen, buf);
buf += 4;
const uint8_t *r = data.ptr();
memcpy(buf, &r[0], datalen * datasize);
buf += datalen * datasize;
}
r_len += 4 + datalen * datasize;
while (r_len % 4) {
r_len++;
if (buf) {
*(buf++) = 0;
}
}
} break;
case Variant::PACKED_INT32_ARRAY: {
Vector<int32_t> data = p_variant;
int datalen = data.size();
int datasize = sizeof(int32_t);
if (buf) {
encode_uint32(datalen, buf);
buf += 4;
const int32_t *r = data.ptr();
for (int32_t i = 0; i < datalen; i++) {
encode_uint32(r[i], &buf[i * datasize]);
}
}
r_len += 4 + datalen * datasize;
} break;
case Variant::PACKED_INT64_ARRAY: {
Vector<int64_t> data = p_variant;
int datalen = data.size();
int datasize = sizeof(int64_t);
if (buf) {
encode_uint32(datalen, buf);
buf += 4;
const int64_t *r = data.ptr();
for (int64_t i = 0; i < datalen; i++) {
encode_uint64(r[i], &buf[i * datasize]);
}
}
r_len += 4 + datalen * datasize;
} break;
case Variant::PACKED_FLOAT32_ARRAY: {
Vector<float> data = p_variant;
int datalen = data.size();
int datasize = sizeof(float);
if (buf) {
encode_uint32(datalen, buf);
buf += 4;
const float *r = data.ptr();
for (int i = 0; i < datalen; i++) {
encode_float(r[i], &buf[i * datasize]);
}
}
r_len += 4 + datalen * datasize;
} break;
case Variant::PACKED_FLOAT64_ARRAY: {
Vector<double> data = p_variant;
int datalen = data.size();
int datasize = sizeof(double);
if (buf) {
encode_uint32(datalen, buf);
buf += 4;
const double *r = data.ptr();
for (int i = 0; i < datalen; i++) {
encode_double(r[i], &buf[i * datasize]);
}
}
r_len += 4 + datalen * datasize;
} break;
case Variant::PACKED_STRING_ARRAY: {
Vector<String> data = p_variant;
int len = data.size();
if (buf) {
encode_uint32(len, buf);
buf += 4;
}
r_len += 4;
for (int i = 0; i < len; i++) {
CharString utf8 = data.get(i).utf8();
if (buf) {
encode_uint32(utf8.length() + 1, buf);
buf += 4;
memcpy(buf, utf8.get_data(), utf8.length() + 1);
buf += utf8.length() + 1;
}
r_len += 4 + utf8.length() + 1;
while (r_len % 4) {
r_len++; //pad
if (buf) {
*(buf++) = 0;
}
}
}
} break;
case Variant::PACKED_VECTOR2_ARRAY: {
Vector<Vector2> data = p_variant;
int len = data.size();
if (buf) {
encode_uint32(len, buf);
buf += 4;
}
r_len += 4;
if (buf) {
for (int i = 0; i < len; i++) {
Vector2 v = data.get(i);
encode_real(v.x, &buf[0]);
encode_real(v.y, &buf[sizeof(real_t)]);
buf += sizeof(real_t) * 2;
}
}
r_len += sizeof(real_t) * 2 * len;
} break;
case Variant::PACKED_VECTOR3_ARRAY: {
Vector<Vector3> data = p_variant;
int len = data.size();
if (buf) {
encode_uint32(len, buf);
buf += 4;
}
r_len += 4;
if (buf) {
for (int i = 0; i < len; i++) {
Vector3 v = data.get(i);
encode_real(v.x, &buf[0]);
encode_real(v.y, &buf[sizeof(real_t)]);
encode_real(v.z, &buf[sizeof(real_t) * 2]);
buf += sizeof(real_t) * 3;
}
}
r_len += sizeof(real_t) * 3 * len;
} break;
case Variant::PACKED_COLOR_ARRAY: {
Vector<Color> data = p_variant;
int len = data.size();
if (buf) {
encode_uint32(len, buf);
buf += 4;
}
r_len += 4;
if (buf) {
for (int i = 0; i < len; i++) {
Color c = data.get(i);
encode_float(c.r, &buf[0]);
encode_float(c.g, &buf[4]);
encode_float(c.b, &buf[8]);
encode_float(c.a, &buf[12]);
buf += 4 * 4; // Colors should always be in single-precision.
}
}
r_len += 4 * 4 * len;
} break;
default: {
ERR_FAIL_V(ERR_BUG);
}
}
return OK;
}
Vector<float> vector3_to_float32_array(const Vector3 *vecs, size_t count) {
// We always allocate a new array, and we don't memcpy.
// We also don't consider returning a pointer to the passed vectors when sizeof(real_t) == 4.
// One reason is that we could decide to put a 4th component in Vector3 for SIMD/mobile performance,
// which would cause trouble with these optimizations.
Vector<float> floats;
if (count == 0) {
return floats;
}
floats.resize(count * 3);
float *floats_w = floats.ptrw();
for (size_t i = 0; i < count; ++i) {
const Vector3 v = vecs[i];
floats_w[0] = v.x;
floats_w[1] = v.y;
floats_w[2] = v.z;
floats_w += 3;
}
return floats;
}
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