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virtual_buffer: Do nothing on resize() calls with same sizes
Prevents us from churning memory by freeing and reallocating a memory block that would have already been adequate as is.
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@ -43,9 +43,14 @@ public:
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void resize(std::size_t count) {
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void resize(std::size_t count) {
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const auto new_size = count * sizeof(T);
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if (new_size == alloc_size) {
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return;
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}
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FreeMemoryPages(base_ptr, alloc_size);
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FreeMemoryPages(base_ptr, alloc_size);
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alloc_size = count * sizeof(T);
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alloc_size = new_size;
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base_ptr = reinterpret_cast<T*>(AllocateMemoryPages(alloc_size));
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base_ptr = reinterpret_cast<T*>(AllocateMemoryPages(alloc_size));
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}
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}
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