Castlevania: LOS – Mirror of Fate HD .bctex textures

[zardalu]

Castlevania: Lords of Shadow – Mirror of Fate HD bctex textures

Thanks to Ekey, .pkg files can be extracted which contain textures with .bctex extension:

viewtopic.php?f=10&t=11080

I am interested in bctex conversion to .dds or .tga, or whatever.

Per forum rules, please PM me for additional data.

[cienislaw]

bitmap starts at 0x24, its two 8bit interleaved channels. first channel always 0xFF, second is what you need. bfont format is almost the same as mst in big Castlevanias. at 0x28 you have offset to chars table data and there x, y, w, h all shorts. one difference - chars 0x00-0x1f are skipped so there are definitions for 0x20-xff only.

[destrator]

Template for PC version.

Code: Select all

enum<DWORD> TEXFORMAT
{
    TEXFMT_ARGB = 0x10001,
    TEXFMT_ARGB_1 = 0x20001,
    TEXFMT_A8 = 0x30001,
    TEXFMT_A8_1 = 0x40001,
    TEXFMT_R8G8_B8G8 = 0x50001,
    TEXFMT_DXT1 = 0x10003,
    TEXFMT_DXT5 = 0x20003,

    TEXFMT_U8V8 = 0xC0001,
    TEXFMT_DXT1_1 = 0xC0003,
};

struct Header
{
    BYTE Signature[4];
    DWORD Version <format=hex>; // or content ID. 0x30001 for all textures.
    TEXFORMAT Flags<format=hex>;
    DWORD Width;
    DWORD Height;
    DWORD MipLevels;
    DWORD NameOffset <format=hex>;
    DWORD DataOffset <format=hex>;
};

Header header;
DWORD MipLevelSizes[header.MipLevels];

local int i = 0;
FSeek(header.DataOffset);
for(i = 0; i < header.MipLevels; i++)
{
    struct { BYTE Data[MipLevelSizes[i]]; } level;
}
FSeek(header.NameOffset);
string name;

In fact, the Flags field is not an enumeration. It is a set of the flags. For example the flag 0x1 means the surface, 0x3 means the compressed format. Second word of enumeration is "usage", It also describes the format of texture.

But to extract textures you can ignore these details and use an enum TEXFORMAT.

[namquang93]

bitmap starts at 0x24, its two 8bit interleaved channels. first channel always 0xFF, second is what you need. bfont format is almost the same as mst in big Castlevanias. at 0x28 you have offset to chars table data and there x, y, w, h all shorts. one difference - chars 0x00-0x1f are skipped so there are definitions for 0x20-xff only.

How to convert .bctex to png and repack it? Thanks!

[destrator]

http://rghost.ru/54291693

This command line tool converts bctex texture to dds texture. Target surface remains in the same format as the original. Use bctex2dds <bctex_filename>.

[namquang93]

http://rghost.ru/54291693

This command line tool converts bctex texture to dds texture. Target surface remains in the same format as the original. Use bctex2dds <bctex_filename>.

Work perfect!
How to converts dds texture to bctex texture? Thanks for your help! ^^

[TaylorMouse]

Hi guys, I just got my copy of the HD game of LOS

I extracted the files with the bms script:

Code: Select all

get TABLESIZE long
get DATASIZE long
get FILES long

for i = 0 < FILES
  getdstring NAME 1024
  get OFFSET long
  get SIZE long
  math SIZE -= OFFSET
  log NAME OFFSET SIZE
next 

Works perfect!

Now the bctex2dds is nolonger available

So i had to come up with something else, C# code of course

Code: Select all

public enum TEXFORMAT
        {
            TEXFMT_ARGB = 0x10001,
            TEXFMT_ARGB_1 = 0x20001,
            TEXFMT_A8 = 0x30001,
            TEXFMT_A8_1 = 0x40001,
            TEXFMT_R8G8_B8G8 = 0x50001,
            TEXFMT_DXT1 = 0x10003,
            TEXFMT_DXT5 = 0x20003,

            TEXFMT_U8V8 = 0xC0001,
            TEXFMT_DXT1_1 = 0xC0003,
        };

        public struct Header
        {
           public byte[] Signature; // 4 bytes
           public uint Version; // <format=hex>; // or content ID. 0x30001 for all textures.
           public TEXFORMAT Flags;// <format=hex>;
           public uint Width;
           public uint Height;
           public uint MipLevels;
           public uint NameOffset; // <format=hex>;
           public uint DataOffset; // <format=hex>;
           public uint[] MipLevelSizes;
        };

        public static void Convert2DDS(string fileName)
        {
            using (var br = new BinaryReader(File.Open(fileName, FileMode.Open)))
            {
                Header header = new Header()
                {
                    Signature = br.ReadBytes(4), // MTXT
                    Version = br.ReadUInt32(),
                    Flags = (TEXFORMAT)br.ReadUInt32(),
                    Width = br.ReadUInt32(),
                    Height = br.ReadUInt32(),
                    MipLevels = br.ReadUInt32(),
                    NameOffset = br.ReadUInt32(),
                    DataOffset = br.ReadUInt32()
                };

                header.MipLevelSizes = new uint[(int)header.MipLevels];

                for (int i = 0; i < header.MipLevels; i++)
                {
                    header.MipLevelSizes[i] = br.ReadUInt32();
                }


                br.Close();
            }
        
        
        }

but how do I write it out as a dds file ??

T.

[TaylorMouse]

Found it

The header is 128 bytes, always, then write the exact data from the bctex file to the dds file and it works, well almost for every case.

for the formats DXT5 & DXT1, it works just fine, cause that is noted in the header:



but what is it I need to write when dealing with another format like
ARGB
ARGB_1
A8
A8_1
R8G8_B8G8
U8V8
DXT1_1

Anyone can help me out here?

T.

[claudiuboy83]

Still have someone the bctex2dds...?

[merlinsvk]

Yep

[claudiuboy83]

thank you but when i try to open is blinck it and disapear...is about win OS?

[merlinsvk]

It's ok. It is a command-line tool.

[claudiuboy83]

Sorry but i get this info"has unknow surface format : 0x.01000400"
Can you explain me exacly how to do this?...to convert this type of files.Thank you!
Or someone have all that bctex files converted to dds?

[merlinsvk]

I have never used this tool, but I assume that your texture is not supported.