godot-cpp/include/godot_cpp/core/method_ptrcall.hpp

238 lines
12 KiB
C++

/**************************************************************************/
/* method_ptrcall.hpp */
/**************************************************************************/
/* 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 GODOT_METHOD_PTRCALL_HPP
#define GODOT_METHOD_PTRCALL_HPP
#include <godot_cpp/core/defs.hpp>
#include <godot_cpp/core/object.hpp>
#include <godot_cpp/godot.hpp>
#include <godot_cpp/variant/variant.hpp>
namespace godot {
template <typename 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) { \
*reinterpret_cast<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) { \
*reinterpret_cast<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) { \
*reinterpret_cast<m_conv *>(p_ptr) = static_cast<m_conv>(p_val); \
} \
_FORCE_INLINE_ static m_conv encode_arg(m_type p_val) { \
return 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) { \
*reinterpret_cast<m_conv *>(p_ptr) = static_cast<m_conv>(p_val); \
} \
_FORCE_INLINE_ static m_conv encode_arg(m_type p_val) { \
return 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) { \
*reinterpret_cast<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) { \
*reinterpret_cast<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(Transform2D);
MAKE_PTRARG_BY_REFERENCE(Vector4);
MAKE_PTRARG_BY_REFERENCE(Vector4i);
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(Projection);
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 <typename T>
struct PtrToArg<T *> {
static_assert(std::is_base_of<Object, T>::value, "Cannot encode non-Object value as an Object");
_FORCE_INLINE_ static T *convert(const void *p_ptr) {
return likely(p_ptr) ? reinterpret_cast<T *>(godot::internal::get_object_instance_binding(*reinterpret_cast<GDExtensionObjectPtr *>(const_cast<void *>(p_ptr)))) : nullptr;
}
typedef Object *EncodeT;
_FORCE_INLINE_ static void encode(T *p_var, void *p_ptr) {
*reinterpret_cast<const void **>(p_ptr) = likely(p_var) ? p_var->_owner : nullptr;
}
};
template <typename T>
struct PtrToArg<const T *> {
static_assert(std::is_base_of<Object, T>::value, "Cannot encode non-Object value as an Object");
_FORCE_INLINE_ static const T *convert(const void *p_ptr) {
return likely(p_ptr) ? reinterpret_cast<const T *>(godot::internal::get_object_instance_binding(*reinterpret_cast<GDExtensionObjectPtr *>(const_cast<void *>(p_ptr)))) : nullptr;
}
typedef const Object *EncodeT;
_FORCE_INLINE_ static void encode(T *p_var, void *p_ptr) {
*reinterpret_cast<const void **>(p_ptr) = likely(p_var) ? p_var->_owner : nullptr;
}
};
// Pointers.
#define GDVIRTUAL_NATIVE_PTR(m_type) \
template <> \
struct PtrToArg<m_type *> { \
_FORCE_INLINE_ static m_type *convert(const void *p_ptr) { \
return (m_type *)(*(void **)p_ptr); \
} \
typedef m_type *EncodeT; \
_FORCE_INLINE_ static void encode(m_type *p_var, void *p_ptr) { \
*reinterpret_cast<m_type **>(p_ptr) = p_var; \
} \
}; \
\
template <> \
struct PtrToArg<const m_type *> { \
_FORCE_INLINE_ static const m_type *convert(const void *p_ptr) { \
return (const m_type *)(*(const void **)p_ptr); \
} \
typedef const m_type *EncodeT; \
_FORCE_INLINE_ static void encode(const m_type *p_var, void *p_ptr) { \
*reinterpret_cast<const m_type **>(p_ptr) = p_var; \
} \
}
GDVIRTUAL_NATIVE_PTR(void);
GDVIRTUAL_NATIVE_PTR(bool);
GDVIRTUAL_NATIVE_PTR(char);
GDVIRTUAL_NATIVE_PTR(char16_t);
GDVIRTUAL_NATIVE_PTR(char32_t);
GDVIRTUAL_NATIVE_PTR(wchar_t);
GDVIRTUAL_NATIVE_PTR(uint8_t);
GDVIRTUAL_NATIVE_PTR(uint8_t *);
GDVIRTUAL_NATIVE_PTR(int8_t);
GDVIRTUAL_NATIVE_PTR(uint16_t);
GDVIRTUAL_NATIVE_PTR(int16_t);
GDVIRTUAL_NATIVE_PTR(uint32_t);
GDVIRTUAL_NATIVE_PTR(int32_t);
GDVIRTUAL_NATIVE_PTR(int64_t);
GDVIRTUAL_NATIVE_PTR(uint64_t);
GDVIRTUAL_NATIVE_PTR(float);
GDVIRTUAL_NATIVE_PTR(double);
} // namespace godot
#endif // GODOT_METHOD_PTRCALL_HPP