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variant_decoder_compat.cpp
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variant_decoder_compat.cpp
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#include "variant_decoder_compat.h"
#include "input_event_parser_v2.h"
#include "core/io/image.h"
#include "core/io/marshalls.h"
#define _S(a) ((int32_t)a)
#define ERR_FAIL_ADD_OF(a, b, err) ERR_FAIL_COND_V(_S(b) < 0 || _S(a) < 0 || _S(a) > INT_MAX - _S(b), err)
#define ERR_FAIL_MUL_OF(a, b, err) ERR_FAIL_COND_V(_S(a) < 0 || _S(b) <= 0 || _S(a) > INT_MAX / _S(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), 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;
}
struct V3TypeToString {
V3Type::Type type;
const char *name;
};
// create a list of V3TypeToString structs for each type
static const V3TypeToString v3_type_to_string[]{
{ V3Type::NIL, "Nil" },
{ V3Type::BOOL, "bool" },
{ V3Type::INT, "int" },
{ V3Type::REAL, "float" },
{ V3Type::STRING, "String" },
{ V3Type::VECTOR2, "Vector2" },
{ V3Type::RECT2, "Rect2" },
{ V3Type::VECTOR3, "Vector3" },
{ V3Type::TRANSFORM2D, "Transform2D" },
{ V3Type::PLANE, "Plane" },
{ V3Type::QUAT, "Quat" },
{ V3Type::AABB, "AABB" },
{ V3Type::BASIS, "Basis" },
{ V3Type::TRANSFORM, "Transform" },
{ V3Type::COLOR, "Color" },
{ V3Type::NODE_PATH, "NodePath" },
{ V3Type::_RID, "RID" },
{ V3Type::OBJECT, "Object" },
{ V3Type::DICTIONARY, "Dictionary" },
{ V3Type::ARRAY, "Array" },
{ V3Type::POOL_BYTE_ARRAY, "PoolByteArray" },
{ V3Type::POOL_INT_ARRAY, "PoolIntArray" },
{ V3Type::POOL_REAL_ARRAY, "PoolRealArray" },
{ V3Type::POOL_STRING_ARRAY, "PoolStringArray" },
{ V3Type::POOL_VECTOR2_ARRAY, "PoolVector2Array" },
{ V3Type::POOL_VECTOR3_ARRAY, "PoolVector3Array" },
{ V3Type::POOL_COLOR_ARRAY, "PoolColorArray" }
};
static constexpr int v3_type_to_string_size = sizeof(v3_type_to_string) / sizeof(V3TypeToString);
static_assert(v3_type_to_string_size == V3Type::VARIANT_MAX, "v3_type_to_string_size must be equal to V3Type::VARIANT_MAX");
String VariantDecoderCompat::get_variant_type_name_v3(int p_type) {
// type is an index into the v3_type_to_string array
if (p_type >= 0 && p_type < v3_type_to_string_size) {
return v3_type_to_string[p_type].name;
}
return "";
}
struct V2TypeToString {
V2Type::Type type;
const char *name;
};
// create a list of V2TypeToString structs for each type
static const V2TypeToString v2_type_to_string[] = {
{ V2Type::NIL, "Nil" },
{ V2Type::BOOL, "bool" },
{ V2Type::INT, "int" },
{ V2Type::REAL, "float" },
{ V2Type::STRING, "String" },
{ V2Type::VECTOR2, "Vector2" },
{ V2Type::RECT2, "Rect2" },
{ V2Type::VECTOR3, "Vector3" },
{ V2Type::MATRIX32, "Matrix32" },
{ V2Type::PLANE, "Plane" },
{ V2Type::QUAT, "Quat" },
{ V2Type::_AABB, "AABB" },
{ V2Type::MATRIX3, "Matrix3" },
{ V2Type::TRANSFORM, "Transform" },
{ V2Type::COLOR, "Color" },
{ V2Type::IMAGE, "Image" },
{ V2Type::NODE_PATH, "NodePath" },
{ V2Type::_RID, "RID" },
{ V2Type::OBJECT, "Object" },
{ V2Type::INPUT_EVENT, "InputEvent" },
{ V2Type::DICTIONARY, "Dictionary" },
{ V2Type::ARRAY, "Array" },
{ V2Type::RAW_ARRAY, "RawArray" },
{ V2Type::INT_ARRAY, "IntArray" },
{ V2Type::REAL_ARRAY, "RealArray" },
{ V2Type::STRING_ARRAY, "StringArray" },
{ V2Type::VECTOR2_ARRAY, "Vector2Array" },
{ V2Type::VECTOR3_ARRAY, "Vector3Array" },
{ V2Type::COLOR_ARRAY, "ColorArray" }
};
static constexpr int v2_type_to_string_size = sizeof(v2_type_to_string) / sizeof(V2TypeToString);
static_assert(v2_type_to_string_size == V2Type::VARIANT_MAX, "v2_type_to_string_size must be equal to V2Type::VARIANT_MAX");
String VariantDecoderCompat::get_variant_type_name_v2(int p_type) {
// type is an index into the v2_type_to_string array
if (p_type >= 0 && p_type < v2_type_to_string_size) {
return v2_type_to_string[p_type].name;
}
return "";
}
String VariantDecoderCompat::get_variant_type_name(int p_type, int ver_major) {
if (ver_major <= 2) {
return get_variant_type_name_v2(p_type);
} else if (ver_major == 3) {
return get_variant_type_name_v3(p_type);
}
return Variant::get_type_name((Variant::Type)p_type);
}
int VariantDecoderCompat::get_variant_type_v3(String p_type_name) {
for (int i = 0; i < v3_type_to_string_size; i++) {
if (v3_type_to_string[i].name == p_type_name) {
return v3_type_to_string[i].type;
}
}
return -1;
}
int VariantDecoderCompat::get_variant_type_v2(String p_type_name) {
for (int i = 0; i < v2_type_to_string_size; i++) {
if (v2_type_to_string[i].name == p_type_name) {
return v2_type_to_string[i].type;
}
}
return -1;
}
int VariantDecoderCompat::get_variant_type(String p_type_name, int ver_major) {
if (ver_major <= 2) {
return get_variant_type_v2(p_type_name);
} else if (ver_major == 3) {
return get_variant_type_v3(p_type_name);
}
for (int i = 0; i < Variant::VARIANT_MAX; i++) {
if (Variant::get_type_name((Variant::Type)i) == p_type_name) {
return i;
}
}
return -1;
}
// take the above function and create an array of the types
struct V2TypeToV4Type {
V2Type::Type type;
Variant::Type v4_type;
};
static constexpr V2TypeToV4Type v2_to_v4_type[] = {
{ V2Type::NIL, Variant::NIL },
{ V2Type::BOOL, Variant::BOOL },
{ V2Type::INT, Variant::INT },
{ V2Type::REAL, Variant::FLOAT },
{ V2Type::STRING, Variant::STRING },
{ V2Type::VECTOR2, Variant::VECTOR2 },
{ V2Type::RECT2, Variant::RECT2 },
{ V2Type::VECTOR3, Variant::VECTOR3 },
{ V2Type::MATRIX32, Variant::TRANSFORM2D },
{ V2Type::PLANE, Variant::PLANE },
{ V2Type::QUAT, Variant::QUATERNION },
{ V2Type::_AABB, Variant::AABB },
{ V2Type::MATRIX3, Variant::BASIS },
{ V2Type::TRANSFORM, Variant::TRANSFORM3D },
{ V2Type::COLOR, Variant::COLOR },
{ V2Type::IMAGE, Variant::OBJECT }, // removed in v3; for compatibility, the variant writers will auto-convert Image objects to v2 Image variants
{ V2Type::NODE_PATH, Variant::NODE_PATH },
{ V2Type::_RID, Variant::RID },
{ V2Type::OBJECT, Variant::OBJECT },
{ V2Type::INPUT_EVENT, Variant::OBJECT }, // removed in v3; for compatibility, the variant writers will auto-convert InputEvent objects to v2 InputEvent variants
{ V2Type::DICTIONARY, Variant::DICTIONARY },
{ V2Type::ARRAY, Variant::ARRAY },
{ V2Type::RAW_ARRAY, Variant::PACKED_BYTE_ARRAY },
{ V2Type::INT_ARRAY, Variant::PACKED_INT32_ARRAY },
{ V2Type::REAL_ARRAY, Variant::PACKED_FLOAT32_ARRAY },
{ V2Type::STRING_ARRAY, Variant::PACKED_STRING_ARRAY },
{ V2Type::VECTOR2_ARRAY, Variant::PACKED_VECTOR2_ARRAY },
{ V2Type::VECTOR3_ARRAY, Variant::PACKED_VECTOR3_ARRAY },
{ V2Type::COLOR_ARRAY, Variant::PACKED_COLOR_ARRAY }
};
static constexpr int v2_to_v4_type_size = sizeof(v2_to_v4_type) / sizeof(V2TypeToV4Type);
static_assert(v2_to_v4_type_size == V2Type::VARIANT_MAX, "v2_to_v4_type_size must be equal to V2Type::VARIANT_MAX");
Variant::Type VariantDecoderCompat::variant_type_enum_v2_to_v4(int type) {
if (type >= 0 && type < v2_to_v4_type_size) {
return v2_to_v4_type[type].v4_type;
}
return Variant::VARIANT_MAX;
}
struct V3TypeToV4Type {
V3Type::Type type;
Variant::Type v4_type;
};
static constexpr V3TypeToV4Type v3_type_to_v4_type[] = {
{ V3Type::NIL, Variant::NIL },
{ V3Type::BOOL, Variant::BOOL },
{ V3Type::INT, Variant::INT },
{ V3Type::REAL, Variant::FLOAT },
{ V3Type::STRING, Variant::STRING },
{ V3Type::VECTOR2, Variant::VECTOR2 },
{ V3Type::RECT2, Variant::RECT2 },
{ V3Type::VECTOR3, Variant::VECTOR3 },
{ V3Type::TRANSFORM2D, Variant::TRANSFORM2D },
{ V3Type::PLANE, Variant::PLANE },
{ V3Type::QUAT, Variant::QUATERNION },
{ V3Type::AABB, Variant::AABB },
{ V3Type::BASIS, Variant::BASIS },
{ V3Type::TRANSFORM, Variant::TRANSFORM3D },
{ V3Type::COLOR, Variant::COLOR },
{ V3Type::NODE_PATH, Variant::NODE_PATH },
{ V3Type::_RID, Variant::RID },
{ V3Type::OBJECT, Variant::OBJECT },
{ V3Type::DICTIONARY, Variant::DICTIONARY },
{ V3Type::ARRAY, Variant::ARRAY },
{ V3Type::POOL_BYTE_ARRAY, Variant::PACKED_BYTE_ARRAY },
{ V3Type::POOL_INT_ARRAY, Variant::PACKED_INT32_ARRAY },
{ V3Type::POOL_REAL_ARRAY, Variant::PACKED_FLOAT32_ARRAY },
{ V3Type::POOL_STRING_ARRAY, Variant::PACKED_STRING_ARRAY },
{ V3Type::POOL_VECTOR2_ARRAY, Variant::PACKED_VECTOR2_ARRAY },
{ V3Type::POOL_VECTOR3_ARRAY, Variant::PACKED_VECTOR3_ARRAY },
{ V3Type::POOL_COLOR_ARRAY, Variant::PACKED_COLOR_ARRAY }
};
static constexpr int v3_to_v4_type_size = sizeof(v3_type_to_v4_type) / sizeof(V3TypeToV4Type);
static_assert(v3_to_v4_type_size == V3Type::VARIANT_MAX, "v3_to_v4_type_size must be equal to V3Type::VARIANT_MAX");
Variant::Type VariantDecoderCompat::variant_type_enum_v3_to_v4(int type) {
if (type >= 0 && type < v3_to_v4_type_size) {
return v3_type_to_v4_type[type].v4_type;
}
return Variant::VARIANT_MAX;
}
Variant::Type VariantDecoderCompat::convert_variant_type_from_old(int type, int ver_major) {
if (ver_major <= 2) {
return variant_type_enum_v2_to_v4(type);
} else if (ver_major == 3) {
return variant_type_enum_v3_to_v4(type);
} else {
WARN_PRINT("VariantDecoderCompat::convert_variant_type_from_old: ver_major is not 2 or 3, returning type as is.");
}
return (Variant::Type)type;
}
int VariantDecoderCompat::variant_type_enum_v4_to_v2(Variant::Type type) {
switch (type) {
case Variant::NIL: {
return V2Type::NIL;
} break;
case Variant::BOOL: {
return V2Type::BOOL;
} break;
case Variant::INT: {
return V2Type::INT;
} break;
case Variant::FLOAT: {
return V2Type::REAL;
} break;
case Variant::STRING: {
return V2Type::STRING;
} break;
case Variant::VECTOR2: {
return V2Type::VECTOR2;
} break;
case Variant::RECT2: {
return V2Type::RECT2;
} break;
case Variant::VECTOR3: {
return V2Type::VECTOR3;
} break;
case Variant::TRANSFORM2D: {
return V2Type::MATRIX32;
} break;
case Variant::PLANE: {
return V2Type::PLANE;
} break;
case Variant::QUATERNION: {
return V2Type::QUAT;
} break;
case Variant::AABB: {
return V2Type::_AABB;
} break;
case Variant::BASIS: {
return V2Type::MATRIX3;
} break;
case Variant::TRANSFORM3D: {
return V2Type::TRANSFORM;
} break;
case Variant::COLOR: {
return V2Type::COLOR;
} break;
// case Variant::IMAGE: // removed in v3
case Variant::NODE_PATH: {
return V2Type::NODE_PATH;
} break;
case Variant::RID: {
return V2Type::_RID;
} break;
case Variant::OBJECT: {
return V2Type::OBJECT;
} break;
// case Variant::INPUT_EVENT: // removed in v3
case Variant::DICTIONARY: {
return V2Type::DICTIONARY;
} break;
case Variant::ARRAY: {
return V2Type::ARRAY;
} break;
case Variant::PACKED_BYTE_ARRAY: {
return V2Type::RAW_ARRAY;
} break;
case Variant::PACKED_INT64_ARRAY: // Compat: v2 doesn't have PACKED_INT64_ARRAY; handled in encoders
case Variant::PACKED_INT32_ARRAY: {
return V2Type::INT_ARRAY;
} break;
case Variant::PACKED_FLOAT64_ARRAY: // Compat: v2 doesn't have PACKED_FLOAT64_ARRAY; handled in encoders
case Variant::PACKED_FLOAT32_ARRAY: {
return V2Type::REAL_ARRAY;
} break;
case Variant::PACKED_STRING_ARRAY: {
return V2Type::STRING_ARRAY;
} break;
case Variant::PACKED_VECTOR2_ARRAY: {
return V2Type::VECTOR2_ARRAY;
} break;
case Variant::PACKED_VECTOR3_ARRAY: {
return V2Type::VECTOR3_ARRAY;
} break;
case Variant::PACKED_COLOR_ARRAY: {
return V2Type::COLOR_ARRAY;
} break;
case Variant::VARIANT_MAX: {
return V2Type::VARIANT_MAX;
} break;
default: {
} break;
}
return -1;
}
int VariantDecoderCompat::variant_type_enum_v4_to_v3(Variant::Type type) {
switch (type) {
case Variant::NIL: {
return V3Type::NIL;
} break;
case Variant::BOOL: {
return V3Type::BOOL;
} break;
case Variant::INT: {
return V3Type::INT;
} break;
case Variant::FLOAT: {
return V3Type::REAL;
} break;
case Variant::STRING: {
return V3Type::STRING;
} break;
case Variant::VECTOR2: {
return V3Type::VECTOR2;
} break;
case Variant::RECT2: {
return V3Type::RECT2;
} break;
case Variant::TRANSFORM2D: {
return V3Type::TRANSFORM2D;
} break;
case Variant::VECTOR3: {
return V3Type::VECTOR3;
} break;
case Variant::PLANE: {
return V3Type::PLANE;
} break;
case Variant::AABB: {
return V3Type::AABB;
} break;
case Variant::QUATERNION: {
return V3Type::QUAT;
} break;
case Variant::BASIS: {
return V3Type::BASIS;
} break;
case Variant::TRANSFORM3D: {
return V3Type::TRANSFORM;
} break;
case Variant::COLOR: {
return V3Type::COLOR;
} break;
case Variant::NODE_PATH: {
return V3Type::NODE_PATH;
} break;
case Variant::RID: {
return V3Type::_RID;
} break;
case Variant::OBJECT: {
return V3Type::OBJECT;
} break;
case Variant::DICTIONARY: {
return V3Type::DICTIONARY;
} break;
case Variant::ARRAY: {
return V3Type::ARRAY;
} break;
case Variant::PACKED_BYTE_ARRAY: {
return V3Type::POOL_BYTE_ARRAY;
} break;
case Variant::PACKED_INT32_ARRAY: {
return V3Type::POOL_INT_ARRAY;
} break;
case Variant::PACKED_FLOAT32_ARRAY: {
return V3Type::POOL_REAL_ARRAY;
} break;
case Variant::PACKED_STRING_ARRAY: {
return V3Type::POOL_STRING_ARRAY;
} break;
case Variant::PACKED_VECTOR2_ARRAY: {
return V3Type::POOL_VECTOR2_ARRAY;
} break;
case Variant::PACKED_VECTOR3_ARRAY: {
return V3Type::POOL_VECTOR3_ARRAY;
} break;
case Variant::PACKED_COLOR_ARRAY: {
return V3Type::POOL_COLOR_ARRAY;
} break;
default: {
} break;
}
return -1;
}
int VariantDecoderCompat::convert_variant_type_to_old(Variant::Type type, int ver_major) {
// this just calls the other functions depending on the ver_major
if (ver_major <= 2) {
return variant_type_enum_v4_to_v2(type);
} else if (ver_major == 3) {
return variant_type_enum_v4_to_v3(type);
} else {
WARN_PRINT("VariantDecoderCompat::convert_variant_type_to_old: ver_major is not 2 or 3, returning type as is.");
}
return int(type);
}
Error VariantDecoderCompat::decode_variant_3(Variant &r_variant, const uint8_t *p_buffer, int p_len, int *r_len, bool p_allow_objects) {
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) >= V3Type::VARIANT_MAX, ERR_INVALID_DATA);
buf += 4;
len -= 4;
if (r_len) {
*r_len = 4;
}
switch (type & ENCODE_MASK) {
case V3Type::NIL: {
r_variant = Variant();
} break;
case V3Type::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 V3Type::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 V3Type::REAL: {
if (type & ENCODE_FLAG_64) {
ERR_FAIL_COND_V(len < 8, ERR_INVALID_DATA);
double val = decode_double(buf);
r_variant = val;
if (r_len) {
(*r_len) += 8;
}
} else {
ERR_FAIL_COND_V(len < 4, ERR_INVALID_DATA);
float val = decode_float(buf);
r_variant = val;
if (r_len) {
(*r_len) += 4;
}
}
} break;
case V3Type::STRING: {
String str;
Error err = _decode_string(buf, len, r_len, str);
if (err) {
return err;
}
r_variant = str;
} break;
// math types
case V3Type::VECTOR2: {
ERR_FAIL_COND_V(len < 4 * 2, ERR_INVALID_DATA);
Vector2 val;
val.x = decode_float(&buf[0]);
val.y = decode_float(&buf[4]);
r_variant = val;
if (r_len) {
(*r_len) += 4 * 2;
}
} break;
case V3Type::RECT2: {
ERR_FAIL_COND_V(len < 4 * 4, ERR_INVALID_DATA);
Rect2 val;
val.position.x = decode_float(&buf[0]);
val.position.y = decode_float(&buf[4]);
val.size.x = decode_float(&buf[8]);
val.size.y = decode_float(&buf[12]);
r_variant = val;
if (r_len) {
(*r_len) += 4 * 4;
}
} break;
case V3Type::VECTOR3: {
ERR_FAIL_COND_V(len < 4 * 3, ERR_INVALID_DATA);
Vector3 val;
val.x = decode_float(&buf[0]);
val.y = decode_float(&buf[4]);
val.z = decode_float(&buf[8]);
r_variant = val;
if (r_len) {
(*r_len) += 4 * 3;
}
} break;
case V3Type::TRANSFORM2D: {
ERR_FAIL_COND_V(len < 4 * 6, ERR_INVALID_DATA);
Transform2D val;
for (int i = 0; i < 3; i++) {
for (int j = 0; j < 2; j++) {
val.columns[i][j] = decode_float(&buf[(i * 2 + j) * 4]);
}
}
r_variant = val;
if (r_len) {
(*r_len) += 4 * 6;
}
} break;
case V3Type::PLANE: {
ERR_FAIL_COND_V(len < 4 * 4, ERR_INVALID_DATA);
Plane val;
val.normal.x = decode_float(&buf[0]);
val.normal.y = decode_float(&buf[4]);
val.normal.z = decode_float(&buf[8]);
val.d = decode_float(&buf[12]);
r_variant = val;
if (r_len) {
(*r_len) += 4 * 4;
}
} break;
case V3Type::QUAT: {
ERR_FAIL_COND_V(len < 4 * 4, ERR_INVALID_DATA);
Quaternion val;
val.x = decode_float(&buf[0]);
val.y = decode_float(&buf[4]);
val.z = decode_float(&buf[8]);
val.w = decode_float(&buf[12]);
r_variant = val;
if (r_len) {
(*r_len) += 4 * 4;
}
} break;
case V3Type::AABB: {
ERR_FAIL_COND_V(len < 4 * 6, ERR_INVALID_DATA);
AABB val;
val.position.x = decode_float(&buf[0]);
val.position.y = decode_float(&buf[4]);
val.position.z = decode_float(&buf[8]);
val.size.x = decode_float(&buf[12]);
val.size.y = decode_float(&buf[16]);
val.size.z = decode_float(&buf[20]);
r_variant = val;
if (r_len) {
(*r_len) += 4 * 6;
}
} break;
case V3Type::BASIS: {
ERR_FAIL_COND_V(len < 4 * 9, ERR_INVALID_DATA);
Basis val;
for (int i = 0; i < 3; i++) {
for (int j = 0; j < 3; j++) {
val.rows[i][j] = decode_float(&buf[(i * 3 + j) * 4]);
}
}
r_variant = val;
if (r_len) {
(*r_len) += 4 * 9;
}
} break;
case V3Type::TRANSFORM: {
ERR_FAIL_COND_V(len < 4 * 12, ERR_INVALID_DATA);
Transform3D val;
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) * 4]);
}
}
val.origin[0] = decode_float(&buf[36]);
val.origin[1] = decode_float(&buf[40]);
val.origin[2] = decode_float(&buf[44]);
r_variant = val;
if (r_len) {
(*r_len) += 4 * 12;
}
} break;
// misc types
case V3Type::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;
}
} break;
case V3Type::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 V3Type::_RID: {
r_variant = RID();
} break;
case V3Type::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 == String()) {
r_variant = (Object *)nullptr;
} else {
Object *obj = ClassDB::instantiate(str);
bool is_input_event_key = str == "InputEventKey";
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;
}
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_3(value, buf, len, &used, p_allow_objects);
if (err) {
return err;
}
buf += used;
len -= used;
if (r_len) {
(*r_len) += used;
}
// Hack for v3 Input Events, which will be the only Objects we encounter encoded into the project.binary
// scancode was renamed to keycode in v4
if (is_input_event_key) {
if (str == "scancode") {
str = "keycode";
} else if (str == "physical_scancode") {
str = "physical_keycode";
}
}
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 V3Type::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;
}
Dictionary d;
for (int i = 0; i < count; i++) {
Variant key, value;
int used;
Error err = decode_variant_3(key, buf, len, &used, p_allow_objects);
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_3(value, buf, len, &used, p_allow_objects);
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 V3Type::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;
}
Array varr;
for (int i = 0; i < count; i++) {
int used = 0;
Variant v;
Error err = decode_variant_3(v, buf, len, &used, p_allow_objects);
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 V3Type::POOL_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 V3Type::POOL_INT_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 V3Type::POOL_REAL_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 V3Type::POOL_STRING_ARRAY: {
ERR_FAIL_COND_V(len < 4, ERR_INVALID_DATA);
int32_t count = decode_uint32(buf);