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Ryujinx/Ryujinx.Graphics.Gpu/Engine/MethodUniformBufferUpdate.cs
gdkchan fbb4019ed5
Initial support for separate GPU address spaces (#2394)
* Make GPU memory manager a member of GPU channel

* Move physical memory instance to the memory manager, and the caches to the physical memory

* PR feedback
2021-06-29 19:32:02 +02:00

88 lines
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3.2 KiB
C#

using Ryujinx.Graphics.Gpu.Memory;
using Ryujinx.Graphics.Gpu.State;
using System;
using System.Runtime.InteropServices;
namespace Ryujinx.Graphics.Gpu.Engine
{
partial class Methods
{
// State associated with direct uniform buffer updates.
// This state is used to attempt to batch together consecutive updates.
private ulong _ubBeginCpuAddress = 0;
private ulong _ubFollowUpAddress = 0;
private ulong _ubByteCount = 0;
/// <summary>
/// Flushes any queued ubo updates.
/// </summary>
/// <param name="memoryManager">GPU memory manager where the uniform buffer is mapped</param>
private void FlushUboDirty(MemoryManager memoryManager)
{
if (_ubFollowUpAddress != 0)
{
memoryManager.Physical.BufferCache.ForceDirty(memoryManager, _ubFollowUpAddress - _ubByteCount, _ubByteCount);
_ubFollowUpAddress = 0;
}
}
/// <summary>
/// Updates the uniform buffer data with inline data.
/// </summary>
/// <param name="state">Current GPU state</param>
/// <param name="argument">New uniform buffer data word</param>
private void UniformBufferUpdate(GpuState state, int argument)
{
var uniformBuffer = state.Get<UniformBufferState>(MethodOffset.UniformBufferState);
ulong address = uniformBuffer.Address.Pack() + (uint)uniformBuffer.Offset;
if (_ubFollowUpAddress != address)
{
FlushUboDirty(state.Channel.MemoryManager);
_ubByteCount = 0;
_ubBeginCpuAddress = state.Channel.MemoryManager.Translate(address);
}
var byteData = MemoryMarshal.Cast<int, byte>(MemoryMarshal.CreateSpan(ref argument, 1));
state.Channel.MemoryManager.Physical.WriteUntracked(_ubBeginCpuAddress + _ubByteCount, byteData);
_ubFollowUpAddress = address + 4;
_ubByteCount += 4;
state.SetUniformBufferOffset(uniformBuffer.Offset + 4);
}
/// <summary>
/// Updates the uniform buffer data with inline data.
/// </summary>
/// <param name="state">Current GPU state</param>
/// <param name="data">Data to be written to the uniform buffer</param>
public void UniformBufferUpdate(GpuState state, ReadOnlySpan<int> data)
{
var uniformBuffer = state.Get<UniformBufferState>(MethodOffset.UniformBufferState);
ulong address = uniformBuffer.Address.Pack() + (uint)uniformBuffer.Offset;
ulong size = (ulong)data.Length * 4;
if (_ubFollowUpAddress != address)
{
FlushUboDirty(state.Channel.MemoryManager);
_ubByteCount = 0;
_ubBeginCpuAddress = state.Channel.MemoryManager.Translate(address);
}
var byteData = MemoryMarshal.Cast<int, byte>(data);
state.Channel.MemoryManager.Physical.WriteUntracked(_ubBeginCpuAddress + _ubByteCount, byteData);
_ubFollowUpAddress = address + size;
_ubByteCount += size;
state.SetUniformBufferOffset(uniformBuffer.Offset + data.Length * 4);
}
}
}