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using Ryujinx.Graphics.Device;
using Ryujinx.Graphics.Gpu.Memory;
using Ryujinx.Graphics.Vic.Image;
using Ryujinx.Graphics.Vic.Types;
using System;
using System.Collections.Generic;
namespace Ryujinx.Graphics.Vic
{
public class VicDevice : IDeviceState
{
private readonly MemoryManager _gmm;
private readonly ResourceManager _rm;
private readonly DeviceState<VicRegisters> _state;
public VicDevice(MemoryManager gmm)
{
_gmm = gmm;
_rm = new ResourceManager(gmm, new BufferPool<Pixel>(), new BufferPool<byte>());
_state = new DeviceState<VicRegisters>(new Dictionary<string, RwCallback>
{
{ nameof(VicRegisters.Execute), new RwCallback(Execute, null) },
});
}
public int Read(int offset) => _state.Read(offset);
public void Write(int offset, int data) => _state.Write(offset, data);
private void Execute(int data)
{
ConfigStruct config = ReadIndirect<ConfigStruct>(_state.State.SetConfigStructOffset);
using Surface output = new(
_rm.SurfacePool,
config.OutputSurfaceConfig.OutSurfaceWidth + 1,
config.OutputSurfaceConfig.OutSurfaceHeight + 1);
for (int i = 0; i < config.SlotStruct.Length; i++)
{
ref SlotStruct slot = ref config.SlotStruct[i];
if (!slot.SlotConfig.SlotEnable)
{
continue;
}
ref var offsets = ref _state.State.SetSurfacexSlotx[i];
using Surface src = SurfaceReader.Read(_rm, ref slot.SlotConfig, ref slot.SlotSurfaceConfig, ref offsets);
int x1 = config.OutputConfig.TargetRectLeft;
int y1 = config.OutputConfig.TargetRectTop;
int x2 = config.OutputConfig.TargetRectRight + 1;
int y2 = config.OutputConfig.TargetRectBottom + 1;
int targetX = Math.Min(x1, x2);
int targetY = Math.Min(y1, y2);
int targetW = Math.Min(output.Width - targetX, Math.Abs(x2 - x1));
int targetH = Math.Min(output.Height - targetY, Math.Abs(y2 - y1));
Rectangle targetRect = new(targetX, targetY, targetW, targetH);
Blender.BlendOne(output, src, ref slot, targetRect);
}
SurfaceWriter.Write(_rm, output, ref config.OutputSurfaceConfig, ref _state.State.SetOutputSurface);
}
private T ReadIndirect<T>(uint offset) where T : unmanaged
{
return _gmm.Read<T>((ulong)offset << 8);
}
}
}
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