using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace Unity_Studio
{
class Texture2D
{
public string m_Name;
public int m_Width;
public int m_Height;
public int m_CompleteImageSize;
public int m_TextureFormat;
public bool m_MipMap = false;
public bool m_IsReadable;
public bool m_ReadAllowed;
public int m_ImageCount;
public int m_TextureDimension;
//m_TextureSettings
public int m_FilterMode;
public int m_Aniso;
public float m_MipBias;
public int m_WrapMode;
public int m_LightmapFormat;
public int m_ColorSpace;
public byte[] image_data;
public int dwFlags = 0x1 + 0x2 + 0x4 + 0x1000;
//public int dwHeight;
//public int dwWidth;
public int dwPitchOrLinearSize = 0x0;
public int dwMipMapCount = 0x1;
public int dwSize = 0x20;
public int dwFlags2;
public int dwFourCC = 0x0;
public int dwRGBBitCount;
public int dwRBitMask;
public int dwGBitMask;
public int dwBBitMask;
public int dwABitMask;
public int dwCaps = 0x1000;
public int dwCaps2 = 0x0;
public int pvrVersion = 0x03525650;
public int pvrFlags = 0x0;
public long pvrPixelFormat;
public int pvrColourSpace = 0x0;
public int pvrChannelType = 0x0;
//public int pvrHeight;
//public int pvrWidth;
public int pvrDepth = 0x1;
public int pvrNumSurfaces = 0x1; //For texture arrays
public int pvrNumFaces = 0x1; //For cube maps
//public int pvrMIPMapCount;
public int pvrMetaDataSize = 0x0;
public int image_data_size;
string extension;
public Texture2D(AssetPreloadData preloadData, bool readSwitch)
{
var sourceFile = preloadData.sourceFile;
var a_Stream = preloadData.sourceFile.a_Stream;
a_Stream.Position = preloadData.Offset;
if (sourceFile.platform == -2)
{
uint m_ObjectHideFlags = a_Stream.ReadUInt32();
PPtr m_PrefabParentObject = sourceFile.ReadPPtr();
PPtr m_PrefabInternal = sourceFile.ReadPPtr();
}
m_Name = a_Stream.ReadAlignedString(a_Stream.ReadInt32());
m_Width = a_Stream.ReadInt32();
m_Height = a_Stream.ReadInt32();
m_CompleteImageSize = a_Stream.ReadInt32();
m_TextureFormat = a_Stream.ReadInt32();
if (m_TextureFormat < 30) { extension = ".dds"; }
else if (m_TextureFormat < 35) { extension = ".pvr"; }
else { extension = "_" + m_Width.ToString() + "x" + m_Height.ToString() + "." + m_TextureFormat.ToString() + ".tex"; }
if (sourceFile.version[0] < 5 || (sourceFile.version[0] == 5 && sourceFile.version[1] < 2))
{ m_MipMap = a_Stream.ReadBoolean(); }
else
{
dwFlags += 0x20000;
dwMipMapCount = a_Stream.ReadInt32();//is this with or without main image?
dwCaps += 0x400008;
}
m_IsReadable = a_Stream.ReadBoolean(); //2.6.0 and up
m_ReadAllowed = a_Stream.ReadBoolean(); //3.0.0 and up
a_Stream.AlignStream(4);
m_ImageCount = a_Stream.ReadInt32();
m_TextureDimension = a_Stream.ReadInt32();
//m_TextureSettings
m_FilterMode = a_Stream.ReadInt32();
m_Aniso = a_Stream.ReadInt32();
m_MipBias = a_Stream.ReadSingle();
m_WrapMode = a_Stream.ReadInt32();
if (sourceFile.version[0] >= 3)
{
m_LightmapFormat = a_Stream.ReadInt32();
if (sourceFile.version[0] >= 4 || sourceFile.version[1] >= 5) { m_ColorSpace = a_Stream.ReadInt32(); } //3.5.0 and up
}
image_data_size = a_Stream.ReadInt32();
if (m_MipMap)
{
dwFlags += 0x20000;
dwMipMapCount = Convert.ToInt32(Math.Log(Math.Max(m_Width, m_Height)) / Math.Log(2));
dwCaps += 0x400008;
}
if (readSwitch)
{
image_data = new byte[image_data_size];
a_Stream.Read(image_data, 0, image_data_size);
switch (m_TextureFormat)
{
case 1: //Alpha8
{
dwFlags2 = 0x2;
dwRGBBitCount = 0x8;
dwRBitMask = 0x0;
dwGBitMask = 0x0;
dwBBitMask = 0x0;
dwABitMask = 0xFF;
break;
}
case 2: //A4R4G4B4
{
if (sourceFile.platform == 11) //swap bytes for Xbox confirmed, PS3 not encountered
{
for (int i = 0; i < (image_data_size / 2); i++)
{
byte b0 = image_data[i * 2];
image_data[i * 2] = image_data[i * 2 + 1];
image_data[i * 2 + 1] = b0;
}
}
else if (sourceFile.platform == 13) //swap bits for android
{
for (int i = 0; i < (image_data_size / 2); i++)
{
byte[] argb = BitConverter.GetBytes((BitConverter.ToInt32((new byte[4] { image_data[i * 2], image_data[i * 2 + 1], image_data[i * 2], image_data[i * 2 + 1] }), 0)) >> 4);
image_data[i * 2] = argb[0];
image_data[i * 2 + 1] = argb[1];
}
}
dwFlags2 = 0x41;
dwRGBBitCount = 0x10;
dwRBitMask = 0xF00;
dwGBitMask = 0xF0;
dwBBitMask = 0xF;
dwABitMask = 0xF000;
break;
}
case 3: //B8G8R8 //confirmed on X360, iOS //PS3 unsure
{
for (int i = 0; i < (image_data_size / 3); i++)
{
byte b0 = image_data[i * 3];
image_data[i * 3] = image_data[i * 3 + 2];
//image_data[i * 3 + 1] stays the same
image_data[i * 3 + 2] = b0;
}
dwFlags2 = 0x40;
dwRGBBitCount = 0x18;
dwRBitMask = 0xFF0000;
dwGBitMask = 0xFF00;
dwBBitMask = 0xFF;
dwABitMask = 0x0;
break;
}
case 4: //G8R8A8B8 //confirmed on X360, iOS
{
for (int i = 0; i < (image_data_size / 4); i++)
{
byte b0 = image_data[i * 4];
image_data[i * 4] = image_data[i * 4 + 2];
//image_data[i * 4 + 1] stays the same
image_data[i * 4 + 2] = b0;
//image_data[i * 4 + 3] stays the same
}
dwFlags2 = 0x41;
dwRGBBitCount = 0x20;
dwRBitMask = 0xFF0000;
dwGBitMask = 0xFF00;
dwBBitMask = 0xFF;
dwABitMask = -16777216;
break;
}
case 5: //B8G8R8A8 //confirmed on X360, PS3, Web, iOS
{
for (int i = 0; i < (image_data_size / 4); i++)
{
byte b0 = image_data[i * 4];
byte b1 = image_data[i * 4 + 1];
image_data[i * 4] = image_data[i * 4 + 3];
image_data[i * 4 + 1] = image_data[i * 4 + 2];
image_data[i * 4 + 2] = b1;
image_data[i * 4 + 3] = b0;
}
dwFlags2 = 0x41;
dwRGBBitCount = 0x20;
dwRBitMask = 0xFF0000;
dwGBitMask = 0xFF00;
dwBBitMask = 0xFF;
dwABitMask = -16777216;
break;
}
case 7: //R5G6B5 //confirmed switched on X360; confirmed on iOS
{
if (sourceFile.platform == 11)
{
for (int i = 0; i < (image_data_size / 2); i++)
{
byte b0 = image_data[i * 2];
image_data[i * 2] = image_data[i * 2 + 1];
image_data[i * 2 + 1] = b0;
}
}
dwFlags2 = 0x40;
dwRGBBitCount = 0x10;
dwRBitMask = 0xF800;
dwGBitMask = 0x7E0;
dwBBitMask = 0x1F;
dwABitMask = 0x0;
break;
}
case 10: //DXT1
{
if (sourceFile.platform == 11) //X360 only, PS3 not
{
for (int i = 0; i < (image_data_size / 2); i++)
{
byte b0 = image_data[i * 2];
image_data[i * 2] = image_data[i * 2 + 1];
image_data[i * 2 + 1] = b0;
}
}
if (m_MipMap) { dwPitchOrLinearSize = m_Height * m_Width / 2; }
dwFlags2 = 0x4;
dwFourCC = 0x31545844;
dwRGBBitCount = 0x0;
dwRBitMask = 0x0;
dwGBitMask = 0x0;
dwBBitMask = 0x0;
dwABitMask = 0x0;
break;
}
case 12: //DXT5
{
if (sourceFile.platform == 11) //X360, PS3 not
{
for (int i = 0; i < (image_data_size / 2); i++)
{
byte b0 = image_data[i * 2];
image_data[i * 2] = image_data[i * 2 + 1];
image_data[i * 2 + 1] = b0;
}
}
if (m_MipMap) { dwPitchOrLinearSize = m_Height * m_Width / 2; }
dwFlags2 = 0x4;
dwFourCC = 0x35545844;
dwRGBBitCount = 0x0;
dwRBitMask = 0x0;
dwGBitMask = 0x0;
dwBBitMask = 0x0;
dwABitMask = 0x0;
break;
}
case 13: //R4G4B4A4, iOS (only?)
{
for (int i = 0; i < (image_data_size / 2); i++)
{
byte[] argb = BitConverter.GetBytes((BitConverter.ToInt32((new byte[4] { image_data[i * 2], image_data[i * 2 + 1], image_data[i * 2], image_data[i * 2 + 1] }), 0)) >> 4);
image_data[i * 2] = argb[0];
image_data[i * 2 + 1] = argb[1];
}
dwFlags2 = 0x41;
dwRGBBitCount = 0x10;
dwRBitMask = 0xF00;
dwGBitMask = 0xF0;
dwBBitMask = 0xF;
dwABitMask = 0xF000;
break;
}
case 30: //PVRTC_RGB2
{
pvrPixelFormat = 0x0;
break;
}
case 31: //PVRTC_RGBA2
{
pvrPixelFormat = 0x1;
break;
}
case 32: //PVRTC_RGB4
{
pvrPixelFormat = 0x2;
break;
}
case 33: //PVRTC_RGBA4
{
pvrPixelFormat = 0x3;
break;
}
case 34: //ETC_RGB4
{
pvrPixelFormat = 0x16;
break;
}
}
}
}
}
}