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* Refactor shader GPU state and memory access * Fix NVDEC project build * Address PR feedback and add missing XML comments
60 lines
2.3 KiB
C#
60 lines
2.3 KiB
C#
using System;
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using System.Runtime.CompilerServices;
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namespace Ryujinx.Graphics.Gpu.Memory
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{
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/// <summary>
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/// Represents physical memory, accessible from the GPU.
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/// This is actually working CPU virtual addresses, of memory mapped on the application process.
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/// </summary>
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class PhysicalMemory
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{
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public const int PageSize = Cpu.MemoryManager.PageSize;
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private readonly Cpu.MemoryManager _cpuMemory;
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/// <summary>
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/// Creates a new instance of the physical memory.
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/// </summary>
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/// <param name="cpuMemory">CPU memory manager of the application process</param>
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public PhysicalMemory(Cpu.MemoryManager cpuMemory)
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{
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_cpuMemory = cpuMemory;
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}
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/// <summary>
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/// Gets a span of data from the application process.
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/// </summary>
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/// <param name="address">Start address of the range</param>
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/// <param name="size">Size in bytes to be range</param>
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/// <returns>A read only span of the data at the specified memory location</returns>
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public ReadOnlySpan<byte> GetSpan(ulong address, int size)
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{
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return _cpuMemory.GetSpan(address, size);
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}
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/// <summary>
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/// Writes data to the application process.
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/// </summary>
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/// <param name="address">Address to write into</param>
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/// <param name="data">Data to be written</param>
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public void Write(ulong address, ReadOnlySpan<byte> data)
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{
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_cpuMemory.Write(address, data);
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}
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/// <summary>
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/// Checks if a specified virtual memory region has been modified by the CPU since the last call.
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/// </summary>
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/// <param name="address">CPU virtual address of the region</param>
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/// <param name="size">Size of the region</param>
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/// <param name="name">Resource name</param>
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/// <param name="modifiedRanges">Optional array where the modified ranges should be written</param>
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/// <returns>The number of modified ranges</returns>
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public int QueryModified(ulong address, ulong size, ResourceName name, (ulong, ulong)[] modifiedRanges = null)
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{
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return _cpuMemory.QueryModified(address, size, (int)name, modifiedRanges);
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}
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}
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} |