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(Unity.Texture2D): more texture formats.

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This commit is contained in:
morkt 2017-12-15 01:10:39 +04:00
parent a54ecc3863
commit 59924e0285
1 changed files with 55 additions and 5 deletions
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60
ArcFormats/Unity/Texture2D.cs
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@ -27,6 +27,7 @@ using System;
using System.IO;
using System.Windows.Media;
using GameRes.Formats.DirectDraw;
using GameRes.Utility;
namespace GameRes.Formats.Unity
{
@ -64,10 +65,7 @@ namespace GameRes.Formats.Unity
public int m_LightFormat;
public int m_ColorSpace;
public byte[] m_Data;
// StreamingInfo m_StreamData
// uint offset
// uint size
// string path
public StreamingInfo m_StreamData;
public void Load (AssetReader reader)
{
@ -91,6 +89,11 @@ namespace GameRes.Formats.Unity
m_ColorSpace = reader.ReadInt32();
int length = reader.ReadInt32();
m_Data = reader.ReadBytes (length);
if (0 == length)
{
m_StreamData = new StreamingInfo();
m_StreamData.Load (reader);
}
}
}
@ -127,6 +130,17 @@ namespace GameRes.Formats.Unity
m_reader.Position = 0;
}
public Texture2DDecoder (Texture2D texture, AssetReader input)
{
m_reader = input;
m_texture = texture;
Info = new ImageMetaData {
Width = (uint)m_texture.m_Width,
Height = (uint)m_texture.m_Height,
};
SetFormat (m_texture.m_TextureFormat);
}
void SetFormat (TextureFormat format)
{
switch (format)
@ -163,6 +177,12 @@ namespace GameRes.Formats.Unity
byte[] pixels;
switch (m_texture.m_TextureFormat)
{
case TextureFormat.DXT1:
{
var decoder = new DxtDecoder (m_texture.m_Data, Info);
pixels = decoder.UnpackDXT1();
break;
}
case TextureFormat.DXT5:
{
var decoder = new DxtDecoder (m_texture.m_Data, Info);
@ -177,12 +197,42 @@ namespace GameRes.Formats.Unity
pixels = m_texture.m_Data;
break;
case TextureFormat.ARGB32:
pixels = ConvertArgb (m_texture.m_Data);
break;
case TextureFormat.RGBA32:
pixels = ConvertRgba (m_texture.m_Data);
break;
default:
throw new NotImplementedException ("Not supported Unity Texture2D format.");
throw new NotImplementedException (string.Format ("Not supported Unity Texture2D format '{0}'.", m_texture.m_TextureFormat));
}
return ImageData.CreateFlipped (Info, Format, null, pixels, (int)Info.Width*((Format.BitsPerPixel+7)/8));
}
byte[] ConvertArgb (byte[] data)
{
// XXX conversion performed in-place.
for (int i = 0; i < data.Length; i += 4)
{
uint x = BigEndian.ToUInt32 (data, i);
LittleEndian.Pack (x, data, i);
}
return data;
}
byte[] ConvertRgba (byte[] data)
{
for (int i = 0; i < data.Length; i += 4)
{
byte r = data[i];
data[i] = data[i+2];
data[i+2] = r;
}
return data;
}
bool m_disposed = false;
public void Dispose ()
{