XPlor/definitions/thqa/ctx2.xscript

// Texture Format (2xtc / ctx2) - THQ Australia Engine
// Contains texture/image data
// Big-endian (Xbox 360, Wii)

type thqa_ctx2 ui("THQA Texture") byteorder BE
{
  criteria {
    require ascii(bytesat(0, 4)) == "2xtc";
  }

  // Header
  magic = ascii(read(4)) ui("Magic");
  u32 version ui("Version");
  u32 width ui("Width");
  u32 height ui("Height");

  // Format info
  u32 texture_format ui("Format");
  u32 mipmap_count ui("Mipmap Count");
  u32 flags ui("Flags");

  // Data info
  u32 data_offset ui("Data Offset");
  u32 data_size ui("Data Size");

  // Decode format type
  format_name = "Unknown";
  if (texture_format == 0x00) {
    format_name = "RGBA8888";
  }
  if (texture_format == 0x01) {
    format_name = "RGB888";
  }
  if (texture_format == 0x02) {
    format_name = "DXT1";
  }
  if (texture_format == 0x03) {
    format_name = "DXT3";
  }
  if (texture_format == 0x04) {
    format_name = "DXT5";
  }
  if (texture_format == 0x52) {
    format_name = "Xbox360 DXT1";
  }
  if (texture_format == 0x53) {
    format_name = "Xbox360 DXT3";
  }
  if (texture_format == 0x54) {
    format_name = "Xbox360 DXT5";
  }

  format_name = format_name ui("Format Name");

  // Read texture data
  if (data_offset > 0 && data_size > 0) {
    seek(data_offset);
    texture_data = read(data_size) ui("Texture Data");
  }
}