Some BMP format stuff

blah.txt

BMP file
{
  42 4d           - magic 'BM'
  8e 00 00 00     - total file size
  00 00 00 00     - application specific reserved stuff
  8a 00 00 00     - offset to pixel array

  DIB header (BITMAPV5HEADER)
  {
    7c 00 00 00     - DWORD biSize            = 0x7c (bytes in header from here)
    01 00 00 00     - LONG biWidth            = 1 pixel
    01 00 00 00     - LONG biHeight           = 1 pixel
    01 00           - WORD biPlanes           = 1 plane
    20 00           - WORD biBitCount         = 32 bpp
    03 00 00 00     - DWORD biCompression     = 3 (BI_BITFIELDS)
    04 00 00 00     - DWORD biSizeImage       = 4 (size of raw bitmap data)
    00 00 00 00     - LONG biXPelsPerMeter    = 0 pixels/m
    00 00 00 00     - LONG biYPelsPerMeter    = 0 pixels/m
    00 00 00 00     - DWORD biClrUsed         = 0 colours used
    00 00 00 00     - DWORD biClrImportant    = 0 (all colours are important)

    00 00 ff 00     - red channel mask
    00 ff 00 00     - green channel mask
    ff 00 00 00     - blue channel mask
    00 00 00 ff     - alpha channel mask
    
    42 47 52 73     - colour space 'BGRs'

    Colour space data (CIEXYZTRIPLE)
    {
      Red (CIEXYZ)
      {
        80 c2 f5 28    - X
        60 b8 1e 15    - Y
        20 85 eb 01    - Z
      }
      Green (CIEXYZ)
      {
        40 33 33 13    - X
        80 66 66 26    - Y
        40 66 66 06    - Z
      }
      Blue (CIEXYZ)
      {
        a0 99 99 09    - X
        3c 0a d7 03    - Y
        24 5c 8f 32    - Z
      }
    }

    00 00 00 00     - red gamma
    00 00 00 00     - green gamma
    00 00 00 00     - blue gamma                   (BITMAPV4HEADER would end here)

    04 00 00 00     - intent, 4 = LCS_GM_IMAGES, bitmap contains an image and contrast should be maintained
    00 00 00 00     - profile data
    00 00 00 00     - profile size
    00 00 00 00     - reserved
  }

  Pixel array
  {
    f7 f3 9a 5b     (red 9a, green f3, blue f7, alpha 5b)
  }
}