sharpemu/tests/SharpEmu.Libs.Tests/Audio/AudioOut2ContextGetQueueLev...

93 lines
3.2 KiB
C#

// Copyright (C) 2026 SharpEmu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
using System.Buffers.Binary;
using SharpEmu.HLE;
using SharpEmu.Libs.Audio;
using Xunit;
namespace SharpEmu.Libs.Tests.Audio;
public sealed class AudioOut2ContextGetQueueLevelExportsTests
{
private const ulong MemoryBase = 0x1_0000_0000;
private const ulong ParamAddress = MemoryBase + 0x100;
private const ulong ContextMemoryAddress = MemoryBase + 0x200;
private const ulong OutContextAddress = MemoryBase + 0x300;
private const ulong LevelAddress = MemoryBase + 0x400;
private const ulong AvailableAddress = MemoryBase + 0x404;
private const uint QueueDepth = 7;
private static (CpuContext Context, FakeCpuMemory Memory, ulong Handle) CreateContext()
{
var memory = new FakeCpuMemory(MemoryBase, 0x2000);
var ctx = new CpuContext(memory, Generation.Gen5);
Span<byte> param = stackalloc byte[0x40];
param.Clear();
BinaryPrimitives.WriteUInt32LittleEndian(param[0x0C..], QueueDepth);
BinaryPrimitives.WriteUInt32LittleEndian(param[0x10..], 512);
Assert.True(memory.TryWrite(ParamAddress, param));
ctx[CpuRegister.Rdi] = ParamAddress;
ctx[CpuRegister.Rsi] = ContextMemoryAddress;
ctx[CpuRegister.Rdx] = 0x1000;
ctx[CpuRegister.Rcx] = OutContextAddress;
Assert.Equal(0, AudioOut2Exports.AudioOut2ContextCreate(ctx));
Span<byte> handleBytes = stackalloc byte[8];
Assert.True(memory.TryRead(OutContextAddress, handleBytes));
return (ctx, memory, BinaryPrimitives.ReadUInt64LittleEndian(handleBytes));
}
private static uint ReadU32(FakeCpuMemory memory, ulong address)
{
Span<byte> value = stackalloc byte[4];
Assert.True(memory.TryRead(address, value));
return BinaryPrimitives.ReadUInt32LittleEndian(value);
}
[Fact]
public void ContextGetQueueLevel_AvailableOnlyWritesQueueCapacity()
{
var (ctx, memory, handle) = CreateContext();
ctx[CpuRegister.Rdi] = handle;
ctx[CpuRegister.Rsi] = 0;
ctx[CpuRegister.Rdx] = AvailableAddress;
var result = AudioOut2Exports.AudioOut2ContextGetQueueLevel(ctx);
Assert.Equal(0, result);
Assert.Equal(QueueDepth, ReadU32(memory, AvailableAddress));
}
[Fact]
public void ContextGetQueueLevel_LevelOnlyWritesZero()
{
var (ctx, memory, handle) = CreateContext();
ctx[CpuRegister.Rdi] = handle;
ctx[CpuRegister.Rsi] = LevelAddress;
ctx[CpuRegister.Rdx] = 0;
var result = AudioOut2Exports.AudioOut2ContextGetQueueLevel(ctx);
Assert.Equal(0, result);
Assert.Equal(0u, ReadU32(memory, LevelAddress));
}
[Fact]
public void ContextGetQueueLevel_BothOutputsRemainDistinct()
{
var (ctx, memory, handle) = CreateContext();
ctx[CpuRegister.Rdi] = handle;
ctx[CpuRegister.Rsi] = LevelAddress;
ctx[CpuRegister.Rdx] = AvailableAddress;
var result = AudioOut2Exports.AudioOut2ContextGetQueueLevel(ctx);
Assert.Equal(0, result);
Assert.Equal(0u, ReadU32(memory, LevelAddress));
Assert.Equal(QueueDepth, ReadU32(memory, AvailableAddress));
}
}