130 lines
4 KiB
C#
130 lines
4 KiB
C#
using Ryujinx.Common;
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using Ryujinx.Graphics.Gpu.State;
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using Ryujinx.Graphics.Texture;
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using System;
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using System.Runtime.InteropServices;
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namespace Ryujinx.Graphics.Gpu.Engine
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{
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partial class Methods
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{
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private Inline2MemoryParams _params;
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private bool _isLinear;
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private int _offset;
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private int _size;
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private bool _finished;
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private int[] _buffer;
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/// <summary>
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/// Launches Inline-to-Memory engine DMA copy.
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/// </summary>
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/// <param name="state">Current GPU state</param>
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/// <param name="argument">Method call argument</param>
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public void LaunchDma(GpuState state, int argument)
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{
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_params = state.Get<Inline2MemoryParams>(MethodOffset.I2mParams);
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_isLinear = (argument & 1) != 0;
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_offset = 0;
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_size = _params.LineLengthIn * _params.LineCount;
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int count = BitUtils.DivRoundUp(_size, 4);
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if (_buffer == null || _buffer.Length < count)
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{
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_buffer = new int[count];
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}
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ulong dstBaseAddress = _context.MemoryManager.Translate(_params.DstAddress.Pack());
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_context.Methods.TextureManager.Flush(dstBaseAddress, (ulong)_size);
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_finished = false;
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}
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/// <summary>
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/// Pushes a word of data to the Inline-to-Memory engine.
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/// </summary>
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/// <param name="state">Current GPU state</param>
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/// <param name="argument">Method call argument</param>
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public void LoadInlineData(GpuState state, int argument)
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{
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if (!_finished)
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{
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_buffer[_offset++] = argument;
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if (_offset * 4 >= _size)
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{
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FinishTransfer();
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}
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}
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}
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/// <summary>
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/// Performs actual copy of the inline data after the transfer is finished.
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/// </summary>
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private void FinishTransfer()
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{
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Span<byte> data = MemoryMarshal.Cast<int, byte>(_buffer).Slice(0, _size);
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if (_isLinear && _params.LineCount == 1)
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{
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ulong address = _context.MemoryManager.Translate(_params.DstAddress.Pack());
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_context.PhysicalMemory.Write(address, data);
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}
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else
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{
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var dstCalculator = new OffsetCalculator(
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_params.DstWidth,
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_params.DstHeight,
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_params.DstStride,
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_isLinear,
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_params.DstMemoryLayout.UnpackGobBlocksInY(),
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1);
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int srcOffset = 0;
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ulong dstBaseAddress = _context.MemoryManager.Translate(_params.DstAddress.Pack());
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for (int y = _params.DstY; y < _params.DstY + _params.LineCount; y++)
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{
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int x1 = _params.DstX;
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int x2 = _params.DstX + _params.LineLengthIn;
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int x2Trunc = _params.DstX + BitUtils.AlignDown(_params.LineLengthIn, 16);
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int x;
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for (x = x1; x < x2Trunc; x += 16, srcOffset += 16)
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{
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int dstOffset = dstCalculator.GetOffset(x, y);
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ulong dstAddress = dstBaseAddress + (ulong)dstOffset;
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Span<byte> pixel = data.Slice(srcOffset, 16);
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_context.PhysicalMemory.Write(dstAddress, pixel);
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}
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for (; x < x2; x++, srcOffset++)
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{
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int dstOffset = dstCalculator.GetOffset(x, y);
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ulong dstAddress = dstBaseAddress + (ulong)dstOffset;
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Span<byte> pixel = data.Slice(srcOffset, 1);
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_context.PhysicalMemory.Write(dstAddress, pixel);
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}
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}
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}
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_finished = true;
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}
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}
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} |