tobid7
777b23f4c8
- Add working example - Add Namespace defs for Iron Ctr and C3D - Add Exit func / Vertex / Index counter to Iron - Add format bytes function to utils - Make stb_image optional - Compute texture uv's - Clear Everything in Drawlist::Clear - Use Amy::mat4 as matrix lib - Fix the most stupid rendering bug (i -> m_idx)
50 lines
1.3 KiB
C++
50 lines
1.3 KiB
C++
#pragma once
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#include <3ds.h>
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#include <memory>
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#include <stdexcept>
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// Custom C++ Allocator class to interface with libctru linear heap memory
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// based on this guide:
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// https://johnfarrier.com/custom-allocators-in-c-high-performance-memory-management/
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namespace Amy {
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template <typename T>
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class LinearAllocator {
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public:
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using value_type = T;
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LinearAllocator() noexcept = default;
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template <typename U>
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constexpr LinearAllocator(const LinearAllocator<U>&) noexcept {}
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T* allocate(std::size_t n) {
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if (n > max_size()) {
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throw std::runtime_error("[Amy] LinearAllocator: Bad alloc!");
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}
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return static_cast<T*>(linearAlloc(n * sizeof(T)));
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}
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void deallocate(T* p, std::size_t) noexcept { linearFree(p); }
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template <class U, class... Args>
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void construct(U* p, Args&&... args) {
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::new ((void*)p) U(std::forward<Args>(args)...);
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}
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template <class U>
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void destroy(U* p) {
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p->~U();
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}
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friend bool operator==(const LinearAllocator, const LinearAllocator) {
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return true;
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}
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friend bool operator!=(const LinearAllocator, const LinearAllocator) {
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return false;
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}
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// Use linearSpace free as max_size to not allocate out of bounds
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// or to b eable to see a crash report screen.
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size_t max_size() const noexcept { return linearSpaceFree(); }
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};
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} // namespace Amy
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