mirror of
https://github.com/Atmosphere-NX/Atmosphere-libs.git
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315 lines
14 KiB
C++
315 lines
14 KiB
C++
/*
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* Copyright (c) Atmosphère-NX
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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#include <stratosphere/sf/sf_common.hpp>
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#include <stratosphere/sf/sf_out.hpp>
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#include <stratosphere/sf/cmif/sf_cmif_pointer_and_size.hpp>
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#include <stratosphere/sf/sf_buffer_tags.hpp>
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namespace ams::sf {
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enum class BufferTransferMode {
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MapAlias,
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Pointer,
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AutoSelect,
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};
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namespace impl {
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/* Buffer utilities. */
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struct BufferBaseTag{};
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template<BufferTransferMode TransferMode>
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constexpr inline u32 BufferTransferModeAttributes = [] {
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if constexpr (TransferMode == BufferTransferMode::MapAlias) {
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return SfBufferAttr_HipcMapAlias;
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} else if constexpr (TransferMode == BufferTransferMode::Pointer) {
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return SfBufferAttr_HipcPointer;
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} else if constexpr(TransferMode == BufferTransferMode::AutoSelect) {
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return SfBufferAttr_HipcAutoSelect;
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} else {
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static_assert(false, "Invalid BufferTransferMode");
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}
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}();
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}
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template<typename T>
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constexpr inline bool IsLargeData = std::is_base_of<sf::LargeData, T>::value;
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template<typename T>
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constexpr inline bool IsLargeData<Out<T>> = IsLargeData<T>;
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template<typename T>
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constexpr inline size_t LargeDataSize = sizeof(T);
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template<typename T>
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constexpr inline size_t LargeDataSize<Out<T>> = sizeof(T);
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template<typename T>
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constexpr inline BufferTransferMode PreferredTransferMode = [] {
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constexpr bool prefers_map_alias = std::is_base_of<PrefersMapAliasTransferMode, T>::value;
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constexpr bool prefers_pointer = std::is_base_of<PrefersPointerTransferMode, T>::value;
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constexpr bool prefers_auto_select = std::is_base_of<PrefersAutoSelectTransferMode, T>::value;
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if constexpr (prefers_map_alias) {
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static_assert(!prefers_pointer && !prefers_auto_select, "Type T must only prefer one transfer mode.");
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return BufferTransferMode::MapAlias;
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} else if constexpr (prefers_pointer) {
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static_assert(!prefers_map_alias && !prefers_auto_select, "Type T must only prefer one transfer mode.");
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return BufferTransferMode::Pointer;
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} else if constexpr (prefers_auto_select) {
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static_assert(!prefers_map_alias && !prefers_pointer, "Type T must only prefer one transfer mode.");
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return BufferTransferMode::AutoSelect;
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} else if constexpr (IsLargeData<T>) {
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return BufferTransferMode::Pointer;
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} else {
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return BufferTransferMode::MapAlias;
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}
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}();
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template<typename T>
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constexpr inline BufferTransferMode PreferredTransferMode<Out<T>> = PreferredTransferMode<T>;
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namespace impl {
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class BufferBase : public BufferBaseTag {
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public:
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static constexpr u32 AdditionalAttributes = 0;
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private:
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const cmif::PointerAndSize m_pas;
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protected:
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constexpr uintptr_t GetAddressImpl() const {
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return m_pas.GetAddress();
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}
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template<typename Entry>
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constexpr inline size_t GetSizeImpl() const {
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return m_pas.GetSize() / sizeof(Entry);
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}
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public:
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constexpr BufferBase() : m_pas() { /* ... */ }
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constexpr BufferBase(const cmif::PointerAndSize &pas) : m_pas(pas) { /* ... */ }
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constexpr BufferBase(uintptr_t ptr, size_t sz) : m_pas(ptr, sz) { /* ... */ }
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};
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class InBufferBase : public BufferBase {
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public:
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using BaseType = BufferBase;
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static constexpr u32 AdditionalAttributes = BaseType::AdditionalAttributes |
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SfBufferAttr_In;
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public:
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constexpr InBufferBase() : BaseType() { /* ... */ }
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constexpr InBufferBase(const cmif::PointerAndSize &pas) : BaseType(pas) { /* ... */ }
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constexpr InBufferBase(uintptr_t ptr, size_t sz) : BaseType(ptr, sz) { /* ... */ }
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InBufferBase(const void *ptr, size_t sz) : BaseType(reinterpret_cast<uintptr_t>(ptr), sz) { /* ... */ }
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InBufferBase(const u8 *ptr, size_t sz) : BaseType(reinterpret_cast<uintptr_t>(ptr), sz) { /* ... */ }
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};
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class OutBufferBase : public BufferBase {
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public:
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using BaseType = BufferBase;
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static constexpr u32 AdditionalAttributes = BaseType::AdditionalAttributes |
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SfBufferAttr_Out;
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public:
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constexpr OutBufferBase() : BaseType() { /* ... */ }
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constexpr OutBufferBase(const cmif::PointerAndSize &pas) : BaseType(pas) { /* ... */ }
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constexpr OutBufferBase(uintptr_t ptr, size_t sz) : BaseType(ptr, sz) { /* ... */ }
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OutBufferBase(void *ptr, size_t sz) : BaseType(reinterpret_cast<uintptr_t>(ptr), sz) { /* ... */ }
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OutBufferBase(u8 *ptr, size_t sz) : BaseType(reinterpret_cast<uintptr_t>(ptr), sz) { /* ... */ }
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};
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template<BufferTransferMode TMode, u32 ExtraAttributes = 0>
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class InBufferImpl : public InBufferBase {
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public:
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using BaseType = InBufferBase;
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static constexpr BufferTransferMode TransferMode = TMode;
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static constexpr u32 AdditionalAttributes = BaseType::AdditionalAttributes |
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ExtraAttributes;
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public:
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constexpr InBufferImpl() : BaseType() { /* ... */ }
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constexpr InBufferImpl(const cmif::PointerAndSize &pas) : BaseType(pas) { /* ... */ }
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constexpr InBufferImpl(uintptr_t ptr, size_t sz) : BaseType(ptr, sz) { /* ... */ }
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InBufferImpl(const void *ptr, size_t sz) : BaseType(reinterpret_cast<uintptr_t>(ptr), sz) { /* ... */ }
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InBufferImpl(const u8 *ptr, size_t sz) : BaseType(reinterpret_cast<uintptr_t>(ptr), sz) { /* ... */ }
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constexpr const u8 *GetPointer() const {
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return reinterpret_cast<const u8 *>(this->GetAddressImpl());
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}
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constexpr size_t GetSize() const {
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return this->GetSizeImpl<u8>();
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}
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};
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template<BufferTransferMode TMode, u32 ExtraAttributes = 0>
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class OutBufferImpl : public OutBufferBase {
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public:
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using BaseType = OutBufferBase;
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static constexpr BufferTransferMode TransferMode = TMode;
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static constexpr u32 AdditionalAttributes = BaseType::AdditionalAttributes |
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ExtraAttributes;
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public:
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constexpr OutBufferImpl() : BaseType() { /* ... */ }
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constexpr OutBufferImpl(const cmif::PointerAndSize &pas) : BaseType(pas) { /* ... */ }
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constexpr OutBufferImpl(uintptr_t ptr, size_t sz) : BaseType(ptr, sz) { /* ... */ }
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OutBufferImpl(void *ptr, size_t sz) : BaseType(reinterpret_cast<uintptr_t>(ptr), sz) { /* ... */ }
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OutBufferImpl(u8 *ptr, size_t sz) : BaseType(reinterpret_cast<uintptr_t>(ptr), sz) { /* ... */ }
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constexpr u8 *GetPointer() const {
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return reinterpret_cast<u8 *>(this->GetAddressImpl());
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}
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constexpr size_t GetSize() const {
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return this->GetSizeImpl<u8>();
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}
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};
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template<typename T, BufferTransferMode TMode = PreferredTransferMode<T>>
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struct InArrayImpl : public InBufferBase {
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public:
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using BaseType = InBufferBase;
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static constexpr BufferTransferMode TransferMode = TMode;
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static constexpr u32 AdditionalAttributes = BaseType::AdditionalAttributes;
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public:
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constexpr InArrayImpl() : BaseType() { /* ... */ }
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constexpr InArrayImpl(const cmif::PointerAndSize &pas) : BaseType(pas) { /* ... */ }
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InArrayImpl(const T *ptr, size_t num_elements) : BaseType(reinterpret_cast<uintptr_t>(ptr), num_elements * sizeof(T)) { /* ... */ }
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constexpr const T *GetPointer() const {
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return reinterpret_cast<const T *>(this->GetAddressImpl());
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}
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constexpr size_t GetSize() const {
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return this->GetSizeImpl<T>();
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}
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constexpr const T &operator[](size_t i) const {
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return this->GetPointer()[i];
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}
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constexpr explicit operator Span<const T>() const {
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return {this->GetPointer(), this->GetSize()};
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}
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constexpr Span<const T> ToSpan() const {
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return {this->GetPointer(), this->GetSize()};
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}
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};
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template<typename T, BufferTransferMode TMode = PreferredTransferMode<T>>
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struct OutArrayImpl : public OutBufferBase {
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public:
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using BaseType = OutBufferBase;
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static constexpr BufferTransferMode TransferMode = TMode;
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static constexpr u32 AdditionalAttributes = BaseType::AdditionalAttributes;
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public:
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constexpr OutArrayImpl() : BaseType() { /* ... */ }
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constexpr OutArrayImpl(const cmif::PointerAndSize &pas) : BaseType(pas) { /* ... */ }
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OutArrayImpl(T *ptr, size_t num_elements) : BaseType(reinterpret_cast<uintptr_t>(ptr), num_elements * sizeof(T)) { /* ... */ }
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constexpr T *GetPointer() const {
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return reinterpret_cast<T *>(this->GetAddressImpl());
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}
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constexpr size_t GetSize() const {
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return this->GetSizeImpl<T>();
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}
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constexpr T &operator[](size_t i) const {
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return this->GetPointer()[i];
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}
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constexpr explicit operator Span<T>() const {
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return {this->GetPointer(), this->GetSize()};
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}
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constexpr Span<T> ToSpan() const {
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return {this->GetPointer(), this->GetSize()};
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}
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};
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}
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/* Buffer Types. */
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using InBuffer = typename impl::InBufferImpl<BufferTransferMode::MapAlias>;
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using InMapAliasBuffer = typename impl::InBufferImpl<BufferTransferMode::MapAlias>;
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using InPointerBuffer = typename impl::InBufferImpl<BufferTransferMode::Pointer>;
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using InAutoSelectBuffer = typename impl::InBufferImpl<BufferTransferMode::AutoSelect>;
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using InNonSecureBuffer = typename impl::InBufferImpl<BufferTransferMode::MapAlias, SfBufferAttr_HipcMapTransferAllowsNonSecure>;
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using InNonDeviceBuffer = typename impl::InBufferImpl<BufferTransferMode::MapAlias, SfBufferAttr_HipcMapTransferAllowsNonDevice>;
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using InNonSecureAutoSelectBuffer = typename impl::InBufferImpl<BufferTransferMode::AutoSelect, SfBufferAttr_HipcMapTransferAllowsNonSecure>;
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using OutBuffer = typename impl::OutBufferImpl<BufferTransferMode::MapAlias>;
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using OutMapAliasBuffer = typename impl::OutBufferImpl<BufferTransferMode::MapAlias>;
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using OutPointerBuffer = typename impl::OutBufferImpl<BufferTransferMode::Pointer>;
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using OutAutoSelectBuffer = typename impl::OutBufferImpl<BufferTransferMode::AutoSelect>;
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using OutNonSecureBuffer = typename impl::OutBufferImpl<BufferTransferMode::MapAlias, SfBufferAttr_HipcMapTransferAllowsNonSecure>;
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using OutNonDeviceBuffer = typename impl::OutBufferImpl<BufferTransferMode::MapAlias, SfBufferAttr_HipcMapTransferAllowsNonDevice>;
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using OutNonSecureAutoSelectBuffer = typename impl::OutBufferImpl<BufferTransferMode::AutoSelect, SfBufferAttr_HipcMapTransferAllowsNonSecure>;
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template<typename T>
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using InArray = typename impl::InArrayImpl<T>;
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template<typename T>
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using InMapAliasArray = typename impl::InArrayImpl<T, BufferTransferMode::MapAlias>;
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template<typename T>
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using InPointerArray = typename impl::InArrayImpl<T, BufferTransferMode::Pointer>;
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template<typename T>
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using InAutoSelectArray = typename impl::InArrayImpl<T, BufferTransferMode::AutoSelect>;
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template<typename T>
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using OutArray = typename impl::OutArrayImpl<T>;
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template<typename T>
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using OutMapAliasArray = typename impl::OutArrayImpl<T, BufferTransferMode::MapAlias>;
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template<typename T>
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using OutPointerArray = typename impl::OutArrayImpl<T, BufferTransferMode::Pointer>;
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template<typename T>
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using OutAutoSelectArray = typename impl::OutArrayImpl<T, BufferTransferMode::AutoSelect>;
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/* Attribute serialization structs. */
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template<typename T>
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constexpr inline bool IsBuffer = [] {
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const bool is_buffer = std::is_base_of<impl::BufferBaseTag, T>::value;
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const bool is_large_data = IsLargeData<T>;
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static_assert(!(is_buffer && is_large_data), "Invalid sf::IsBuffer state");
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return is_buffer || is_large_data;
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}();
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template<typename T>
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constexpr inline u32 BufferAttributes = [] {
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static_assert(IsBuffer<T>, "BufferAttributes requires IsBuffer");
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if constexpr (std::is_base_of<impl::BufferBaseTag, T>::value) {
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return impl::BufferTransferModeAttributes<T::TransferMode> | T::AdditionalAttributes;
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} else if constexpr (IsLargeData<T>) {
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u32 attr = SfBufferAttr_FixedSize | impl::BufferTransferModeAttributes<PreferredTransferMode<T>>;
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if constexpr (std::is_base_of<impl::OutBaseTag, T>::value) {
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attr |= SfBufferAttr_Out;
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} else {
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attr |= SfBufferAttr_In;
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}
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return attr;
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} else {
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static_assert(!std::is_same<T, T>::value, "Invalid BufferAttributes<T>");
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}
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}();
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} |