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Atmosphere/libraries/libstratosphere/include/stratosphere/tipc/tipc_buffers.hpp

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C++

/*
* Copyright (c) Atmosphère-NX
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#include <stratosphere/tipc/tipc_common.hpp>
#include <stratosphere/tipc/tipc_out.hpp>
#include <stratosphere/tipc/tipc_pointer_and_size.hpp>
namespace ams::tipc {
namespace impl {
/* Buffer utilities. */
struct BufferBaseTag{};
}
namespace impl {
class BufferBase : public BufferBaseTag {
public:
static constexpr u32 AdditionalAttributes = 0;
private:
const tipc::PointerAndSize pas;
protected:
constexpr ALWAYS_INLINE uintptr_t GetAddressImpl() const {
return this->pas.GetAddress();
}
template<typename Entry>
constexpr ALWAYS_INLINE size_t GetSizeImpl() const {
return this->pas.GetSize() / sizeof(Entry);
}
public:
constexpr ALWAYS_INLINE BufferBase() : pas() { /* ... */ }
constexpr ALWAYS_INLINE BufferBase(const tipc::PointerAndSize &_pas) : pas(_pas) { /* ... */ }
constexpr ALWAYS_INLINE BufferBase(uintptr_t ptr, size_t sz) : pas(ptr, sz) { /* ... */ }
};
class InBufferBase : public BufferBase {
public:
using BaseType = BufferBase;
static constexpr u32 AdditionalAttributes = BaseType::AdditionalAttributes |
SfBufferAttr_In;
public:
constexpr ALWAYS_INLINE InBufferBase() : BaseType() { /* ... */ }
constexpr ALWAYS_INLINE InBufferBase(const tipc::PointerAndSize &_pas) : BaseType(_pas) { /* ... */ }
constexpr ALWAYS_INLINE InBufferBase(uintptr_t ptr, size_t sz) : BaseType(ptr, sz) { /* ... */ }
constexpr ALWAYS_INLINE InBufferBase(const void *ptr, size_t sz) : BaseType(reinterpret_cast<uintptr_t>(ptr), sz) { /* ... */ }
constexpr ALWAYS_INLINE InBufferBase(const u8 *ptr, size_t sz) : BaseType(reinterpret_cast<uintptr_t>(ptr), sz) { /* ... */ }
};
class OutBufferBase : public BufferBase {
public:
using BaseType = BufferBase;
static constexpr u32 AdditionalAttributes = BaseType::AdditionalAttributes |
SfBufferAttr_Out;
public:
constexpr ALWAYS_INLINE OutBufferBase() : BaseType() { /* ... */ }
constexpr ALWAYS_INLINE OutBufferBase(const tipc::PointerAndSize &_pas) : BaseType(_pas) { /* ... */ }
constexpr ALWAYS_INLINE OutBufferBase(uintptr_t ptr, size_t sz) : BaseType(ptr, sz) { /* ... */ }
constexpr ALWAYS_INLINE OutBufferBase(void *ptr, size_t sz) : BaseType(reinterpret_cast<uintptr_t>(ptr), sz) { /* ... */ }
constexpr ALWAYS_INLINE OutBufferBase(u8 *ptr, size_t sz) : BaseType(reinterpret_cast<uintptr_t>(ptr), sz) { /* ... */ }
};
template<u32 ExtraAttributes = 0>
class InBufferImpl : public InBufferBase {
public:
using BaseType = InBufferBase;
static constexpr u32 AdditionalAttributes = BaseType::AdditionalAttributes |
ExtraAttributes;
public:
constexpr ALWAYS_INLINE InBufferImpl() : BaseType() { /* ... */ }
constexpr ALWAYS_INLINE InBufferImpl(const tipc::PointerAndSize &_pas) : BaseType(_pas) { /* ... */ }
constexpr ALWAYS_INLINE InBufferImpl(uintptr_t ptr, size_t sz) : BaseType(ptr, sz) { /* ... */ }
constexpr ALWAYS_INLINE InBufferImpl(const void *ptr, size_t sz) : BaseType(reinterpret_cast<uintptr_t>(ptr), sz) { /* ... */ }
constexpr ALWAYS_INLINE InBufferImpl(const u8 *ptr, size_t sz) : BaseType(reinterpret_cast<uintptr_t>(ptr), sz) { /* ... */ }
constexpr ALWAYS_INLINE const u8 *GetPointer() const {
return reinterpret_cast<const u8 *>(this->GetAddressImpl());
}
constexpr ALWAYS_INLINE size_t GetSize() const {
return this->GetSizeImpl<u8>();
}
};
template<u32 ExtraAttributes = 0>
class OutBufferImpl : public OutBufferBase {
public:
using BaseType = OutBufferBase;
static constexpr u32 AdditionalAttributes = BaseType::AdditionalAttributes |
ExtraAttributes;
public:
constexpr ALWAYS_INLINE OutBufferImpl() : BaseType() { /* ... */ }
constexpr ALWAYS_INLINE OutBufferImpl(const tipc::PointerAndSize &_pas) : BaseType(_pas) { /* ... */ }
constexpr ALWAYS_INLINE OutBufferImpl(uintptr_t ptr, size_t sz) : BaseType(ptr, sz) { /* ... */ }
constexpr ALWAYS_INLINE OutBufferImpl(void *ptr, size_t sz) : BaseType(reinterpret_cast<uintptr_t>(ptr), sz) { /* ... */ }
constexpr ALWAYS_INLINE OutBufferImpl(u8 *ptr, size_t sz) : BaseType(reinterpret_cast<uintptr_t>(ptr), sz) { /* ... */ }
constexpr ALWAYS_INLINE u8 *GetPointer() const {
return reinterpret_cast<u8 *>(this->GetAddressImpl());
}
constexpr ALWAYS_INLINE size_t GetSize() const {
return this->GetSizeImpl<u8>();
}
};
template<typename T>
struct InArrayImpl : public InBufferBase {
public:
using BaseType = InBufferBase;
static constexpr u32 AdditionalAttributes = BaseType::AdditionalAttributes;
public:
constexpr ALWAYS_INLINE InArrayImpl() : BaseType() { /* ... */ }
constexpr ALWAYS_INLINE InArrayImpl(const tipc::PointerAndSize &_pas) : BaseType(_pas) { /* ... */ }
constexpr ALWAYS_INLINE InArrayImpl(uintptr_t ptr, size_t sz) : BaseType(ptr, sz) { /* ... */ }
constexpr ALWAYS_INLINE InArrayImpl(const T *ptr, size_t num_elements) : BaseType(reinterpret_cast<uintptr_t>(ptr), num_elements * sizeof(T)) { /* ... */ }
constexpr ALWAYS_INLINE const T *GetPointer() const {
return reinterpret_cast<const T *>(this->GetAddressImpl());
}
constexpr ALWAYS_INLINE size_t GetSize() const {
return this->GetSizeImpl<T>();
}
constexpr ALWAYS_INLINE const T &operator[](size_t i) const {
return this->GetPointer()[i];
}
constexpr explicit ALWAYS_INLINE operator Span<const T>() const {
return {this->GetPointer(), this->GetSize()};
}
constexpr ALWAYS_INLINE Span<const T> ToSpan() const {
return {this->GetPointer(), this->GetSize()};
}
};
template<typename T>
struct OutArrayImpl : public OutBufferBase {
public:
using BaseType = OutBufferBase;
static constexpr u32 AdditionalAttributes = BaseType::AdditionalAttributes;
public:
constexpr ALWAYS_INLINE OutArrayImpl() : BaseType() { /* ... */ }
constexpr ALWAYS_INLINE OutArrayImpl(const tipc::PointerAndSize &_pas) : BaseType(_pas) { /* ... */ }
constexpr ALWAYS_INLINE OutArrayImpl(uintptr_t ptr, size_t sz) : BaseType(ptr, sz) { /* ... */ }
constexpr ALWAYS_INLINE OutArrayImpl(T *ptr, size_t num_elements) : BaseType(reinterpret_cast<uintptr_t>(ptr), num_elements * sizeof(T)) { /* ... */ }
constexpr ALWAYS_INLINE T *GetPointer() const {
return reinterpret_cast<T *>(this->GetAddressImpl());
}
constexpr ALWAYS_INLINE size_t GetSize() const {
return this->GetSizeImpl<T>();
}
constexpr ALWAYS_INLINE T &operator[](size_t i) const {
return this->GetPointer()[i];
}
constexpr explicit ALWAYS_INLINE operator Span<T>() const {
return {this->GetPointer(), this->GetSize()};
}
constexpr ALWAYS_INLINE Span<T> ToSpan() const {
return {this->GetPointer(), this->GetSize()};
}
};
}
/* Buffer Types. */
using InBuffer = typename impl::InBufferImpl<>;
// using InNonSecureBuffer = typename impl::InBufferImpl<SfBufferAttr_HipcMapTransferAllowsNonSecure>;
// using InNonDeviceBuffer = typename impl::InBufferImpl<SfBufferAttr_HipcMapTransferAllowsNonDevice>;
using OutBuffer = typename impl::OutBufferImpl<>;
//using OutNonSecureBuffer = typename impl::OutBufferImpl<SfBufferAttr_HipcMapTransferAllowsNonSecure>;
//using OutNonDeviceBuffer = typename impl::OutBufferImpl<SfBufferAttr_HipcMapTransferAllowsNonDevice>;
template<typename T>
using InArray = typename impl::InArrayImpl<T>;
template<typename T>
using OutArray = typename impl::OutArrayImpl<T>;
/* Attribute serialization structs. */
template<typename T>
concept IsBuffer = std::derived_from<T, impl::BufferBaseTag>;
template<typename T> requires IsBuffer<T>
constexpr inline u32 BufferAttributes = SfBufferAttr_HipcMapAlias | T::AdditionalAttributes;
}