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implemented PSB version 2 and "RGBA4444" textures.

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This commit is contained in:
morkt 2016-03-26 00:55:00 +04:00
parent eb1a913f1b
commit 16d433a29e
1 changed files with 54 additions and 18 deletions
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70
ArcFormats/Emote/ArcPSB.cs
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@ -132,7 +132,7 @@ namespace GameRes.Formats.Emote
}
public int Version { get { return m_version; } }
public bool IsEncrypted { get { return 0 != (m_flags & 1); } }
public bool IsEncrypted { get { return 0 != (m_flags & 3); } }
public int DataOffset { get { return m_chunk_data; } }
public T GetRootKey<T> (string key)
@ -163,8 +163,9 @@ namespace GameRes.Formats.Emote
if (Version < 2)
throw new NotSupportedException ("Not supported PSB version");
m_name_map = ReadNames();
// var dict = GetDict (m_root); // returns all metadata in a single dictionary
#if DEBUG
var dict = GetDict (m_root); // returns all metadata in a single dictionary
#endif
return true;
}
@ -218,10 +219,10 @@ namespace GameRes.Formats.Emote
if (m_version < 3)
m_flags = 2;
var header = new byte[0x24];
var header = new byte[0x20];
m_input.Read (header, 0, header.Length);
if (0 != (m_flags & 1))
Decrypt (header, 0, 0x24);
Decrypt (header, 0, 0x20);
m_names = LittleEndian.ToInt32 (header, 0x04);
m_strings = LittleEndian.ToInt32 (header, 0x08);
@ -232,19 +233,23 @@ namespace GameRes.Formats.Emote
m_root = LittleEndian.ToInt32 (header, 0x1C);
int buffer_length = (int)m_input.BaseStream.Length;
if (!(m_names >= 0x28 && m_names < buffer_length
&& m_strings >= 0x28 && m_strings < buffer_length
&& m_strings_data >= 0x28 && m_strings_data < buffer_length
&& m_chunk_offsets >= 0x28 && m_chunk_offsets < buffer_length
&& m_chunk_lengths >= 0x28 && m_chunk_lengths < buffer_length
if (!(m_names >= 0x28 && m_names < m_chunk_data
&& m_strings >= 0x28 && m_strings < m_chunk_data
&& m_strings_data >= 0x28 && m_strings_data < m_chunk_data
&& m_chunk_offsets >= 0x28 && m_chunk_offsets < m_chunk_data
&& m_chunk_lengths >= 0x28 && m_chunk_lengths < m_chunk_data
&& m_chunk_data >= 0x28 && m_chunk_data < buffer_length
&& m_root >= 0x28 && m_root < buffer_length))
&& m_root >= 0x28 && m_root < m_chunk_data))
return false;
if (null == m_data || m_data.Length < m_chunk_data)
m_data = new byte[m_chunk_data];
int data_pos = (int)m_input.BaseStream.Position;
m_input.Read (m_data, data_pos, m_chunk_data-data_pos);
return true;
if (0 != (m_flags & 2))
Decrypt (m_data, m_names, m_chunk_offsets-m_names);
// root object is a dictionary
return 0x21 == m_data[m_root];
}
bool GetKey (string name, int dict_offset, out int value_offset)
@ -597,21 +602,52 @@ namespace GameRes.Formats.Emote
public override ImageData Read (Stream stream, ImageMetaData info)
{
var meta = (PsbTexMetaData)info;
if (meta.TexType != "RGBA8")
var pixels = new byte[meta.Width * meta.Height * 4];
if ("RGBA8" == meta.TexType)
ReadRgba8 (stream, meta, pixels);
else if ("RGBA4444" == meta.TexType)
ReadRgba4444 (stream, meta, pixels);
else
throw new NotImplementedException (string.Format ("PSB texture format '{0}' not implemented", meta.TexType));
return ImageData.Create (info, PixelFormats.Bgra32, null, pixels);
}
void ReadRgba8 (Stream input, PsbTexMetaData meta, byte[] output)
{
int dst_stride = (int)meta.Width * 4;
var pixels = new byte[dst_stride * (int)meta.Height];
long next_row = meta.DataOffset;
int src_stride = meta.FullWidth * 4;
int dst = 0;
for (uint i = 0; i < meta.Height; ++i)
{
stream.Position = next_row;
stream.Read (pixels, dst, dst_stride);
input.Position = next_row;
input.Read (output, dst, dst_stride);
dst += dst_stride;
next_row += src_stride;
}
return ImageData.Create (info, PixelFormats.Bgra32, null, pixels);
}
void ReadRgba4444 (Stream input, PsbTexMetaData meta, byte[] output)
{
int dst_stride = (int)meta.Width * 4;
int src_stride = meta.FullWidth * 2;
int dst = 0;
var row = new byte[src_stride];
input.Position = meta.DataOffset;
for (uint i = 0; i < meta.Height; ++i)
{
input.Read (row, 0, src_stride);
int src = 0;
for (int x = 0; x < dst_stride; x += 4)
{
uint p = LittleEndian.ToUInt16 (row, src);
src += 2;
output[dst++] = (byte)((p & 0x000Fu) * 0xFFu / 0x000Fu);
output[dst++] = (byte)((p & 0x00F0u) * 0xFFu / 0x00F0u);
output[dst++] = (byte)((p & 0x0F00u) * 0xFFu / 0x0F00u);
output[dst++] = (byte)((p & 0xF000u) * 0xFFu / 0xF000u);
}
}
}
public override void Write (Stream file, ImageData image)