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(Legacy): added formats, mostly PC-98.
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@morkt
morkt committed Oct 20, 2023
1 parent 6781165 commit 1aac79f
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Showing 19 changed files with 2,699 additions and 322 deletions.
50 changes: 43 additions & 7 deletions Legacy/AyPio/ArcDLB.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -44,20 +44,56 @@ public override ArcFile TryOpen (ArcView file)
int count = file.View.ReadInt16 (0x16);
if (!IsSaneCount (count))
return null;
uint index_pos = 0x18;
using (var index = file.CreateStream())
{
index.Position = 0x18;
var dir = ReadIndex (index, count);
return new ArcFile (file, this, dir);
}
}

internal List<Entry> ReadIndex (IBinaryStream index, int count)
{
var max_offset = index.Length;
var dir = new List<Entry> (count);
for (int i = 0; i < count; ++i)
{
var name = file.View.ReadString (index_pos, 0xD);
var name = index.ReadCString (0xD);
var entry = Create<Entry> (name);
entry.Offset = file.View.ReadUInt32 (index_pos+0x0D);
entry.Size = file.View.ReadUInt32 (index_pos+0x11);
if (!entry.CheckPlacement (file.MaxOffset))
entry.Offset = index.ReadUInt32();
entry.Size = index.ReadUInt32();
if (!entry.CheckPlacement (max_offset))
return null;
dir.Add (entry);
index_pos += 0x15;
}
return new ArcFile (file, this, dir);
return dir;
}
}

[Export(typeof(ArchiveFormat))]
public class Dlb0Opener : DlbOpener
{
public override string Tag => "DLB/V0";
public override string Description => "UK2 engine resource archive";
public override uint Signature => 0;
public override bool CanWrite => false;

public override ArcFile TryOpen (ArcView file)
{
if (!file.Name.HasExtension (".DLB"))
return null;
int count = file.View.ReadInt16 (0);
if (!IsSaneCount (count))
return null;
uint first_offset = file.View.ReadUInt32 (0xF);
if (first_offset != count * 0x15 + 2)
return null;
using (var index = file.CreateStream())
{
index.Position = 2;
var dir = ReadIndex (index, count);
return new ArcFile (file, this, dir);
}
}
}
}
192 changes: 192 additions & 0 deletions Legacy/AyPio/AudioVOC.cs
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Original file line number Diff line number Diff line change
@@ -0,0 +1,192 @@
//! \file AudioVOC.cs
//! \date 2023 Oct 19
//! \brief AyPio ADPCM-compressed audio.
//
// Copyright (C) 2023 by morkt
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to
// deal in the Software without restriction, including without limitation the
// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
// sell copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
// IN THE SOFTWARE.
//

using GameRes.Utility;
using System.ComponentModel.Composition;

namespace GameRes.Formats.AyPio
{
[Export(typeof(AudioFormat))]
public class VocAudio : AudioFormat
{
public override string Tag => "VOC/UK2";
public override string Description => "UK2 engine compressed audio";
public override uint Signature => 0x81564157; // 'WAV\x81'
public override bool CanWrite => false;

public override SoundInput TryOpen (IBinaryStream file)
{
var header = file.ReadHeader (0x3C);
if (!header.AsciiEqual (0x38, "RIFF"))
return null;
var decoder = new VocDecoder (file);
var samples = decoder.Decode();
var stream = new BinMemoryStream (samples, file.Name);
file.Dispose();
return new RawPcmInput (stream, decoder.Format);
}
}

internal sealed class VocDecoder
{
IBinaryStream m_input;

int m_sample_count;
byte m_channels;
byte m_bits_per_sample;
byte[] m_prev_sample = new byte[2];
long m_start_pos;

public WaveFormat Format { get; private set; }

public VocDecoder (IBinaryStream input)
{
m_input = input;
var header = input.ReadHeader (0x38);
Format = new WaveFormat {
FormatTag = header.ToUInt16 (0x21),
Channels = header.ToUInt16 (0x23),
SamplesPerSecond = header.ToUInt32 (0x25),
AverageBytesPerSecond = header.ToUInt32 (0x29),
BlockAlign = header.ToUInt16 (0x2D),
BitsPerSample = header.ToUInt16 (0x2F),
};
m_sample_count = header.ToInt32 (0x18);
m_channels = header[8];
m_prev_sample[0] = header[0xC];
m_prev_sample[1] = header[0x10];
m_bits_per_sample = header[0x20];
m_output = new byte[m_sample_count << 1];
m_output[0] = header[0xA];
m_output[1] = header[0xB];
m_output[2] = header[0xE];
m_output[3] = header[0xF];
m_start_pos = header.ToUInt32 (4) + header.ToUInt32 (0x14);
}

byte[] m_output;
int[] m_samples;
int m_src;

public byte[] Decode ()
{
m_input.Position = m_start_pos;
m_src = 0;
BuildSamples();
int count = m_sample_count - m_channels;
int src = 0;
int pos = 0;
while (src < count)
{
byte sample = GetSample();
int v7 = sample & 7;
int channel;
if (m_channels == 1 || (src & 1) == 0)
channel = 0;
else
channel = 1;
byte prev = m_prev_sample[channel];
int s = m_samples[89 * v7 + prev];
if ((sample & 8) != 0)
s = -s;
s += m_output.ToInt16 (pos);
pos += 2;
LittleEndian.Pack (Clamp (s), m_output, pos);
int p = IndexTable[v7] + prev;
if (p < 0)
p = 0;
else if (p > 88)
p = 88;
m_prev_sample[channel] = (byte)p;
++src;
}
return m_output;
}

byte m_current_sample;

byte GetSample ()
{
if (0 == (m_src & 1))
m_current_sample = m_input.ReadUInt8();
++m_src;
byte sample = m_current_sample;
m_current_sample >>= 4;
return sample &= 0xF;
}

short Clamp (int sample)
{
if (sample > 0x7FFF)
sample = 0x7FFF;
else if (sample < -0x8000)
sample = -0x8000;
return (short)sample;
}

void BuildSamples ()
{
int b = 1 << (m_bits_per_sample - 1);
int i = 0;
m_samples = new int[89 * b];
while (i < 89)
{
int ii = i;
int j = 0;
while (j < b)
{
double d = 0.0;
int a = 1;
int c = b;
do
{
if (j % a >= a / 2)
{
d += (double)StepTable[ii] / (double)c;
}
a <<= 1;
c >>= 1;
}
while (a <= b);
++j;
m_samples[i] = (int)d;
i += 89;
}
i = ii + 1;
}
}

static readonly short[] StepTable = {
0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x10, 0x11, 0x13, 0x15, 0x17, 0x19, 0x1C, 0x1F,
0x22, 0x25, 0x29, 0x2D, 0x32, 0x37, 0x3C, 0x42, 0x49, 0x50, 0x58, 0x61, 0x6B, 0x76, 0x82, 0x8F,
0x9D, 0x0AD, 0x0BE, 0x0D1, 0x0E6, 0x0FD, 0x117, 0x133, 0x151, 0x173, 0x198, 0x1C1, 0x1EE, 0x220,
0x256, 0x292, 0x2D4, 0x31C, 0x36C, 0x3C3, 0x424, 0x48E, 0x502, 0x583, 0x610, 0x6AB, 0x756, 0x812,
0x8E0, 0x9C3, 0x0ABD, 0x0BD0, 0x0CFF, 0x0E4C, 0x0FBA, 0x114C, 0x1307, 0x14EE, 0x1706, 0x1954,
0x1BDC, 0x1EA5, 0x21B6, 0x2515, 0x28CA, 0x2CDF, 0x315B, 0x364B, 0x3BB9, 0x41B2, 0x4844, 0x4F7E,
0x5771, 0x602F, 0x69CE, 0x7462, 0x7FFF,
};
static readonly sbyte[] IndexTable = { -1, -1, -1, -1, 1, 2, 3, 4 };
}
}
6 changes: 3 additions & 3 deletions Legacy/AyPio/ImagePDT.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -79,7 +79,7 @@ public override ImageMetaData ReadMetaData (IBinaryStream file)

public override ImageData Read (IBinaryStream file, ImageMetaData info)
{
var reader = new PdtReader (file, (PdtMetaData)info);
var reader = new Pdt4Reader (file, (PdtMetaData)info);
return reader.Unpack();
}

Expand All @@ -89,12 +89,12 @@ public override void Write (Stream file, ImageData image)
}
}

internal class PdtReader
internal class Pdt4Reader
{
IBinaryStream m_input;
PdtMetaData m_info;

public PdtReader (IBinaryStream input, PdtMetaData info)
public Pdt4Reader (IBinaryStream input, PdtMetaData info)
{
m_input = input;
m_info = info;
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