virtualx-engine/core/variant/method_ptrcall.h
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

461 lines
25 KiB
C++

/**************************************************************************/
/* method_ptrcall.h */
/**************************************************************************/
/* 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. */
/**************************************************************************/
#ifndef METHOD_PTRCALL_H
#define METHOD_PTRCALL_H
#include "core/object/object_id.h"
#include "core/typedefs.h"
#include "core/variant/variant.h"
template <class T>
struct PtrToArg {};
#define MAKE_PTRARG(m_type) \
template <> \
struct PtrToArg<m_type> { \
_FORCE_INLINE_ static m_type convert(const void *p_ptr) { \
return *reinterpret_cast<const m_type *>(p_ptr); \
} \
typedef m_type EncodeT; \
_FORCE_INLINE_ static void encode(m_type p_val, void *p_ptr) { \
*((m_type *)p_ptr) = p_val; \
} \
}; \
template <> \
struct PtrToArg<const m_type &> { \
_FORCE_INLINE_ static m_type convert(const void *p_ptr) { \
return *reinterpret_cast<const m_type *>(p_ptr); \
} \
typedef m_type EncodeT; \
_FORCE_INLINE_ static void encode(m_type p_val, void *p_ptr) { \
*((m_type *)p_ptr) = p_val; \
} \
}
#define MAKE_PTRARGCONV(m_type, m_conv) \
template <> \
struct PtrToArg<m_type> { \
_FORCE_INLINE_ static m_type convert(const void *p_ptr) { \
return static_cast<m_type>(*reinterpret_cast<const m_conv *>(p_ptr)); \
} \
typedef m_conv EncodeT; \
_FORCE_INLINE_ static void encode(m_type p_val, void *p_ptr) { \
*((m_conv *)p_ptr) = static_cast<m_conv>(p_val); \
} \
}; \
template <> \
struct PtrToArg<const m_type &> { \
_FORCE_INLINE_ static m_type convert(const void *p_ptr) { \
return static_cast<m_type>(*reinterpret_cast<const m_conv *>(p_ptr)); \
} \
typedef m_conv EncodeT; \
_FORCE_INLINE_ static void encode(m_type p_val, void *p_ptr) { \
*((m_conv *)p_ptr) = static_cast<m_conv>(p_val); \
} \
}
#define MAKE_PTRARG_BY_REFERENCE(m_type) \
template <> \
struct PtrToArg<m_type> { \
_FORCE_INLINE_ static m_type convert(const void *p_ptr) { \
return *reinterpret_cast<const m_type *>(p_ptr); \
} \
typedef m_type EncodeT; \
_FORCE_INLINE_ static void encode(const m_type &p_val, void *p_ptr) { \
*((m_type *)p_ptr) = p_val; \
} \
}; \
template <> \
struct PtrToArg<const m_type &> { \
_FORCE_INLINE_ static m_type convert(const void *p_ptr) { \
return *reinterpret_cast<const m_type *>(p_ptr); \
} \
typedef m_type EncodeT; \
_FORCE_INLINE_ static void encode(const m_type &p_val, void *p_ptr) { \
*((m_type *)p_ptr) = p_val; \
} \
}
MAKE_PTRARGCONV(bool, uint8_t);
// Integer types.
MAKE_PTRARGCONV(uint8_t, int64_t);
MAKE_PTRARGCONV(int8_t, int64_t);
MAKE_PTRARGCONV(uint16_t, int64_t);
MAKE_PTRARGCONV(int16_t, int64_t);
MAKE_PTRARGCONV(uint32_t, int64_t);
MAKE_PTRARGCONV(int32_t, int64_t);
MAKE_PTRARG(int64_t);
MAKE_PTRARG(uint64_t);
// Float types
MAKE_PTRARGCONV(float, double);
MAKE_PTRARG(double);
MAKE_PTRARG(String);
MAKE_PTRARG(Vector2);
MAKE_PTRARG(Vector2i);
MAKE_PTRARG(Rect2);
MAKE_PTRARG(Rect2i);
MAKE_PTRARG_BY_REFERENCE(Vector3);
MAKE_PTRARG_BY_REFERENCE(Vector3i);
MAKE_PTRARG_BY_REFERENCE(Vector4);
MAKE_PTRARG_BY_REFERENCE(Vector4i);
MAKE_PTRARG(Transform2D);
MAKE_PTRARG(Projection);
MAKE_PTRARG_BY_REFERENCE(Plane);
MAKE_PTRARG(Quaternion);
MAKE_PTRARG_BY_REFERENCE(AABB);
MAKE_PTRARG_BY_REFERENCE(Basis);
MAKE_PTRARG_BY_REFERENCE(Transform3D);
MAKE_PTRARG_BY_REFERENCE(Color);
MAKE_PTRARG(StringName);
MAKE_PTRARG(NodePath);
MAKE_PTRARG(RID);
// Object doesn't need this.
MAKE_PTRARG(Callable);
MAKE_PTRARG(Signal);
MAKE_PTRARG(Dictionary);
MAKE_PTRARG(Array);
MAKE_PTRARG(PackedByteArray);
MAKE_PTRARG(PackedInt32Array);
MAKE_PTRARG(PackedInt64Array);
MAKE_PTRARG(PackedFloat32Array);
MAKE_PTRARG(PackedFloat64Array);
MAKE_PTRARG(PackedStringArray);
MAKE_PTRARG(PackedVector2Array);
MAKE_PTRARG(PackedVector3Array);
MAKE_PTRARG(PackedColorArray);
MAKE_PTRARG_BY_REFERENCE(Variant);
// This is for Object.
template <class T>
struct PtrToArg<T *> {
_FORCE_INLINE_ static T *convert(const void *p_ptr) {
return const_cast<T *>(reinterpret_cast<const T *>(p_ptr));
}
typedef Object *EncodeT;
_FORCE_INLINE_ static void encode(T *p_var, void *p_ptr) {
*((T **)p_ptr) = p_var;
}
};
template <class T>
struct PtrToArg<const T *> {
_FORCE_INLINE_ static const T *convert(const void *p_ptr) {
return reinterpret_cast<const T *>(p_ptr);
}
typedef const Object *EncodeT;
_FORCE_INLINE_ static void encode(T *p_var, void *p_ptr) {
*((T **)p_ptr) = p_var;
}
};
// This is for ObjectID.
template <>
struct PtrToArg<ObjectID> {
_FORCE_INLINE_ static const ObjectID convert(const void *p_ptr) {
return ObjectID(*reinterpret_cast<const uint64_t *>(p_ptr));
}
typedef uint64_t EncodeT;
_FORCE_INLINE_ static void encode(const ObjectID &p_val, void *p_ptr) {
*((uint64_t *)p_ptr) = p_val;
}
};
// This is for the special cases used by Variant.
// No EncodeT because direct pointer conversion not possible.
#define MAKE_VECARG(m_type) \
template <> \
struct PtrToArg<Vector<m_type>> { \
_FORCE_INLINE_ static Vector<m_type> convert(const void *p_ptr) { \
const Vector<m_type> *dvs = reinterpret_cast<const Vector<m_type> *>(p_ptr); \
Vector<m_type> ret; \
int len = dvs->size(); \
ret.resize(len); \
{ \
const m_type *r = dvs->ptr(); \
for (int i = 0; i < len; i++) { \
ret.write[i] = r[i]; \
} \
} \
return ret; \
} \
_FORCE_INLINE_ static void encode(Vector<m_type> p_vec, void *p_ptr) { \
Vector<m_type> *dv = reinterpret_cast<Vector<m_type> *>(p_ptr); \
int len = p_vec.size(); \
dv->resize(len); \
{ \
m_type *w = dv->ptrw(); \
for (int i = 0; i < len; i++) { \
w[i] = p_vec[i]; \
} \
} \
} \
}; \
template <> \
struct PtrToArg<const Vector<m_type> &> { \
_FORCE_INLINE_ static Vector<m_type> convert(const void *p_ptr) { \
const Vector<m_type> *dvs = reinterpret_cast<const Vector<m_type> *>(p_ptr); \
Vector<m_type> ret; \
int len = dvs->size(); \
ret.resize(len); \
{ \
const m_type *r = dvs->ptr(); \
for (int i = 0; i < len; i++) { \
ret.write[i] = r[i]; \
} \
} \
return ret; \
} \
}
// No EncodeT because direct pointer conversion not possible.
#define MAKE_VECARG_ALT(m_type, m_type_alt) \
template <> \
struct PtrToArg<Vector<m_type_alt>> { \
_FORCE_INLINE_ static Vector<m_type_alt> convert(const void *p_ptr) { \
const Vector<m_type> *dvs = reinterpret_cast<const Vector<m_type> *>(p_ptr); \
Vector<m_type_alt> ret; \
int len = dvs->size(); \
ret.resize(len); \
{ \
const m_type *r = dvs->ptr(); \
for (int i = 0; i < len; i++) { \
ret.write[i] = r[i]; \
} \
} \
return ret; \
} \
_FORCE_INLINE_ static void encode(Vector<m_type_alt> p_vec, void *p_ptr) { \
Vector<m_type> *dv = reinterpret_cast<Vector<m_type> *>(p_ptr); \
int len = p_vec.size(); \
dv->resize(len); \
{ \
m_type *w = dv->ptrw(); \
for (int i = 0; i < len; i++) { \
w[i] = p_vec[i]; \
} \
} \
} \
}; \
template <> \
struct PtrToArg<const Vector<m_type_alt> &> { \
_FORCE_INLINE_ static Vector<m_type_alt> convert(const void *p_ptr) { \
const Vector<m_type> *dvs = reinterpret_cast<const Vector<m_type> *>(p_ptr); \
Vector<m_type_alt> ret; \
int len = dvs->size(); \
ret.resize(len); \
{ \
const m_type *r = dvs->ptr(); \
for (int i = 0; i < len; i++) { \
ret.write[i] = r[i]; \
} \
} \
return ret; \
} \
}
MAKE_VECARG_ALT(String, StringName);
// For stuff that gets converted to Array vectors.
// No EncodeT because direct pointer conversion not possible.
#define MAKE_VECARR(m_type) \
template <> \
struct PtrToArg<Vector<m_type>> { \
_FORCE_INLINE_ static Vector<m_type> convert(const void *p_ptr) { \
const Array *arr = reinterpret_cast<const Array *>(p_ptr); \
Vector<m_type> ret; \
int len = arr->size(); \
ret.resize(len); \
for (int i = 0; i < len; i++) { \
ret.write[i] = (*arr)[i]; \
} \
return ret; \
} \
_FORCE_INLINE_ static void encode(Vector<m_type> p_vec, void *p_ptr) { \
Array *arr = reinterpret_cast<Array *>(p_ptr); \
int len = p_vec.size(); \
arr->resize(len); \
for (int i = 0; i < len; i++) { \
(*arr)[i] = p_vec[i]; \
} \
} \
}; \
template <> \
struct PtrToArg<const Vector<m_type> &> { \
_FORCE_INLINE_ static Vector<m_type> convert(const void *p_ptr) { \
const Array *arr = reinterpret_cast<const Array *>(p_ptr); \
Vector<m_type> ret; \
int len = arr->size(); \
ret.resize(len); \
for (int i = 0; i < len; i++) { \
ret.write[i] = (*arr)[i]; \
} \
return ret; \
} \
}
MAKE_VECARR(Variant);
MAKE_VECARR(RID);
MAKE_VECARR(Plane);
// No EncodeT because direct pointer conversion not possible.
#define MAKE_DVECARR(m_type) \
template <> \
struct PtrToArg<Vector<m_type>> { \
_FORCE_INLINE_ static Vector<m_type> convert(const void *p_ptr) { \
const Array *arr = reinterpret_cast<const Array *>(p_ptr); \
Vector<m_type> ret; \
int len = arr->size(); \
ret.resize(len); \
{ \
m_type *w = ret.ptrw(); \
for (int i = 0; i < len; i++) { \
w[i] = (*arr)[i]; \
} \
} \
return ret; \
} \
_FORCE_INLINE_ static void encode(Vector<m_type> p_vec, void *p_ptr) { \
Array *arr = reinterpret_cast<Array *>(p_ptr); \
int len = p_vec.size(); \
arr->resize(len); \
{ \
const m_type *r = p_vec.ptr(); \
for (int i = 0; i < len; i++) { \
(*arr)[i] = r[i]; \
} \
} \
} \
}; \
template <> \
struct PtrToArg<const Vector<m_type> &> { \
_FORCE_INLINE_ static Vector<m_type> convert(const void *p_ptr) { \
const Array *arr = reinterpret_cast<const Array *>(p_ptr); \
Vector<m_type> ret; \
int len = arr->size(); \
ret.resize(len); \
{ \
m_type *w = ret.ptrw(); \
for (int i = 0; i < len; i++) { \
w[i] = (*arr)[i]; \
} \
} \
return ret; \
} \
}
// Special case for IPAddress.
// No EncodeT because direct pointer conversion not possible.
#define MAKE_STRINGCONV_BY_REFERENCE(m_type) \
template <> \
struct PtrToArg<m_type> { \
_FORCE_INLINE_ static m_type convert(const void *p_ptr) { \
m_type s = *reinterpret_cast<const String *>(p_ptr); \
return s; \
} \
_FORCE_INLINE_ static void encode(const m_type &p_vec, void *p_ptr) { \
String *arr = reinterpret_cast<String *>(p_ptr); \
*arr = p_vec; \
} \
}; \
\
template <> \
struct PtrToArg<const m_type &> { \
_FORCE_INLINE_ static m_type convert(const void *p_ptr) { \
m_type s = *reinterpret_cast<const String *>(p_ptr); \
return s; \
} \
}
MAKE_STRINGCONV_BY_REFERENCE(IPAddress);
// No EncodeT because direct pointer conversion not possible.
template <>
struct PtrToArg<Vector<Face3>> {
_FORCE_INLINE_ static Vector<Face3> convert(const void *p_ptr) {
const Vector<Vector3> *dvs = reinterpret_cast<const Vector<Vector3> *>(p_ptr);
Vector<Face3> ret;
int len = dvs->size() / 3;
ret.resize(len);
{
const Vector3 *r = dvs->ptr();
Face3 *w = ret.ptrw();
for (int i = 0; i < len; i++) {
w[i].vertex[0] = r[i * 3 + 0];
w[i].vertex[1] = r[i * 3 + 1];
w[i].vertex[2] = r[i * 3 + 2];
}
}
return ret;
}
_FORCE_INLINE_ static void encode(Vector<Face3> p_vec, void *p_ptr) {
Vector<Vector3> *arr = reinterpret_cast<Vector<Vector3> *>(p_ptr);
int len = p_vec.size();
arr->resize(len * 3);
{
const Face3 *r = p_vec.ptr();
Vector3 *w = arr->ptrw();
for (int i = 0; i < len; i++) {
w[i * 3 + 0] = r[i].vertex[0];
w[i * 3 + 1] = r[i].vertex[1];
w[i * 3 + 2] = r[i].vertex[2];
}
}
}
};
// No EncodeT because direct pointer conversion not possible.
template <>
struct PtrToArg<const Vector<Face3> &> {
_FORCE_INLINE_ static Vector<Face3> convert(const void *p_ptr) {
const Vector<Vector3> *dvs = reinterpret_cast<const Vector<Vector3> *>(p_ptr);
Vector<Face3> ret;
int len = dvs->size() / 3;
ret.resize(len);
{
const Vector3 *r = dvs->ptr();
Face3 *w = ret.ptrw();
for (int i = 0; i < len; i++) {
w[i].vertex[0] = r[i * 3 + 0];
w[i].vertex[1] = r[i * 3 + 1];
w[i].vertex[2] = r[i * 3 + 2];
}
}
return ret;
}
};
#endif // METHOD_PTRCALL_H