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h4sht
9be6f85ef0
Add sceFontGetVerticalLayout (NID: 3BrWWFU+4ts) to the Font module, completing the vertical-text counterpart to the existing GetHorizontalLayout. The SceFontVerticalLayout structure is three floats (baseline, lineAdvance, decorationExtent) interpreted for vertical writing such as CJK text rendered top-to-bottom. - Write baseline=8.0f, lineAdvance=16.0f, decorationExtent=0.0f - Validate output pointer and return INVALID_ARGUMENT on null - Return MEMORY_FAULT when guest writes fail Tests: - GetVerticalLayout_WritesExactlyThreeFloats with sentinel guard - GetVerticalLayout_NullBuffer_ReturnsInvalidArgument NID sourced via: python scripts/aerolib_catalog.py lookup sceFontGetVerticalLayout Co-authored-by: tru3 <tru3@tru3.com>
73 lines
2.7 KiB
C#
73 lines
2.7 KiB
C#
// Copyright (C) 2026 SharpEmu Emulator Project
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// SPDX-License-Identifier: GPL-2.0-or-later
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using System.Buffers.Binary;
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using SharpEmu.HLE;
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using SharpEmu.Libs.Font;
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using Xunit;
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namespace SharpEmu.Libs.Tests.Font;
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public sealed class FontExportsTests
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{
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private const ulong Base = 0x1_0000_0000;
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private const ulong LayoutAddress = Base + 0x100;
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private readonly FakeCpuMemory _memory = new(Base, 0x1000);
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private readonly CpuContext _ctx;
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public FontExportsTests()
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{
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_ctx = new CpuContext(_memory, Generation.Gen5);
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}
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// SceFontHorizontalLayout is three floats; the sentinel directly after
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// them must survive the call.
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[Fact]
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public void GetHorizontalLayout_WritesExactlyThreeFloats()
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{
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const uint Sentinel = 0xDEADBEEF;
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Span<byte> sentinelBytes = stackalloc byte[sizeof(uint)];
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BinaryPrimitives.WriteUInt32LittleEndian(sentinelBytes, Sentinel);
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Assert.True(_ctx.Memory.TryWrite(LayoutAddress + 12, sentinelBytes));
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_ctx[CpuRegister.Rsi] = LayoutAddress;
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Assert.Equal(0, FontExports.GetHorizontalLayout(_ctx));
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Span<byte> layout = stackalloc byte[16];
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Assert.True(_ctx.Memory.TryRead(LayoutAddress, layout));
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Assert.Equal(12.0f, BinaryPrimitives.ReadSingleLittleEndian(layout));
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Assert.Equal(16.0f, BinaryPrimitives.ReadSingleLittleEndian(layout[4..]));
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Assert.Equal(0.0f, BinaryPrimitives.ReadSingleLittleEndian(layout[8..]));
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Assert.Equal(Sentinel, BinaryPrimitives.ReadUInt32LittleEndian(layout[12..]));
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}
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[Fact]
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public void GetVerticalLayout_WritesExactlyThreeFloats()
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{
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const uint Sentinel = 0xDEADBEEF;
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Span<byte> sentinelBytes = stackalloc byte[sizeof(uint)];
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BinaryPrimitives.WriteUInt32LittleEndian(sentinelBytes, Sentinel);
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Assert.True(_ctx.Memory.TryWrite(LayoutAddress + 12, sentinelBytes));
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_ctx[CpuRegister.Rsi] = LayoutAddress;
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Assert.Equal(0, FontExports.GetVerticalLayout(_ctx));
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Span<byte> layout = stackalloc byte[16];
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Assert.True(_ctx.Memory.TryRead(LayoutAddress, layout));
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Assert.Equal(8.0f, BinaryPrimitives.ReadSingleLittleEndian(layout));
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Assert.Equal(16.0f, BinaryPrimitives.ReadSingleLittleEndian(layout[4..]));
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Assert.Equal(0.0f, BinaryPrimitives.ReadSingleLittleEndian(layout[8..]));
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Assert.Equal(Sentinel, BinaryPrimitives.ReadUInt32LittleEndian(layout[12..]));
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}
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[Fact]
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public void GetVerticalLayout_NullBuffer_ReturnsInvalidArgument()
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{
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_ctx[CpuRegister.Rsi] = 0;
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Assert.Equal(
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(int)OrbisGen2Result.ORBIS_GEN2_ERROR_INVALID_ARGUMENT,
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FontExports.GetVerticalLayout(_ctx));
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}
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}
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