4da44e09cb
* Make all structs readonly when applicable. It should reduce amount of needless defensive copies * Make structs with trivial boilerplate equality code record structs * Remove unnecessary readonly modifiers from TextureCreateInfo * Make BitMap structs readonly too
61 lines
2 KiB
C#
61 lines
2 KiB
C#
namespace Ryujinx.Memory.Range
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{
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/// <summary>
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/// Range of memory composed of an address and size.
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/// </summary>
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public readonly record struct MemoryRange
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{
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/// <summary>
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/// An empty memory range, with a null address and zero size.
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/// </summary>
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public static MemoryRange Empty => new MemoryRange(0UL, 0);
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/// <summary>
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/// Start address of the range.
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/// </summary>
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public ulong Address { get; }
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/// <summary>
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/// Size of the range in bytes.
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/// </summary>
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public ulong Size { get; }
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/// <summary>
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/// Address where the range ends (exclusive).
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/// </summary>
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public ulong EndAddress => Address + Size;
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/// <summary>
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/// Creates a new memory range with the specified address and size.
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/// </summary>
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/// <param name="address">Start address</param>
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/// <param name="size">Size in bytes</param>
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public MemoryRange(ulong address, ulong size)
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{
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Address = address;
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Size = size;
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}
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/// <summary>
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/// Checks if the range overlaps with another.
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/// </summary>
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/// <param name="other">The other range to check for overlap</param>
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/// <returns>True if the ranges overlap, false otherwise</returns>
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public bool OverlapsWith(MemoryRange other)
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{
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ulong thisAddress = Address;
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ulong thisEndAddress = EndAddress;
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ulong otherAddress = other.Address;
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ulong otherEndAddress = other.EndAddress;
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// If any of the ranges if invalid (address + size overflows),
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// then they are never considered to overlap.
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if (thisEndAddress < thisAddress || otherEndAddress < otherAddress)
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{
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return false;
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}
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return thisAddress < otherEndAddress && otherAddress < thisEndAddress;
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}
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}
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}
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