virtualx-engine/core/variant/method_ptrcall.h
reduz b1d15c51bc Implement native extension system
* Deprecates GDNative in favor of a simpler, lower level interface.
* New extension system allows registering core engine classes.
* Simple header interface in gdnative_interace.h
2021-06-25 17:32:45 -03:00

452 lines
24 KiB
C++

/*************************************************************************/
/* method_ptrcall.h */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2021 Godot Engine contributors (cf. AUTHORS.md). */
/* */
/* 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/math/transform_2d.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, uint32_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(Transform2D);
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.
#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; \
} \
}
#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.
#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);
#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.
#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);
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];
}
}
}
};
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