Class: BSOD::LinuxSPARC

Inherits:
Object
  • Object
show all
Defined in:
lib/bsod/linux-sparc.rb

Overview

Linux sparc kernel paging fault.

TODO Somehow merge with WindowsText, because it follows the

same drawing rules (except that it's a white over black
text and it's shown on the bottom of the screen).

Constant Summary collapse

BSODTEXT = 
<<END_OF_TEXT
Unable to handle kernel paging request at virtual address f0d4a000
tsk->mm->context = 00000014
tsk->mm->pgd = f26b0000
              \\|/ ____ \\|/
              "@'/ ,. \\`@"
              /_| \\__/ |_\\
                 \\__U_/
gawk(22827): Oops
PSR: 044010c1 PC: f001c2cc NPC: f001c2d0 Y: 00000000
g0: 00001000 g1: ad88208a g2: 589528c3 g3: 4c4eaf60
g4: f8e9a052 g5: a8fa48c3 g6: 93eeb38e g7: ea90911f
o0: 6814da2c o1: bcbc439b o2: fbee7b93 o3: 5c92e715
o4: f4e435d8 o5: c0d794ce sp: 187d9d04 ret_pc: 5766da46
l0: 3623c157 l1: 8dacaddb l2: e2fb0bcb l3: 61058d7c
l4: c0e26c5b l5: baf25f79 l6: 9ad3e338 l7: c80f287b
i0: a5487db7 i1: 2a510244 i2: 90803a7c i3: bfb8cf31
i4: d0157ffe i5: 54647960 i6: bac6c329 i7: 2b5b54ed
Instruction DUMP:
END_OF_TEXT

Instance Method Summary collapse

Instance Method Details

#draw(screen, width, height) ⇒ Object

Draws the BSOD on a SDL’s ‘screen`, bounded by `width` and `height`.

It must be a ‘SDL::Surface` (consequently, a `SDL::Screen` is acceptable too.



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# File 'lib/bsod/linux-sparc.rb', line 40

def draw(screen, width, height)

  return if not BSOD::sdl_inited?

  black = screen.format.map_rgb(0, 0, 0)
  screen.fill_rect(0, 0, width, height, black)

  # Printing that bizarre text
  font = SDL::TTF.open($settings[:font_filename],
                       $settings[:font_size] - 2)

  font.style = SDL::TTF::STYLE_BOLD if $settings[:font_bold]

  # need to print at the bottom of the screen
  lines_ammount = height / font.height

  i = (lines_ammount - BSODTEXT.lines.size)
  BSODTEXT.each_line do |line|
    # This is a little hack to allow printing empty lines.
    # First I remove the '\n' at the end to avoid nasty things
    # and then I append a space, to prevent nil strings.
    line.chomp!
    line += " "

    font.draw_solid_utf8(screen, line,
                         3, (i * font.height),
                         255, 255, 255)
    i += 1
  end

  font.close

  # @note Maybe update only the bounded rectangle?
  SDL::Screen.get.update_rect(0, 0, 0, 0)
end

#draw_curses(window, width, height) ⇒ Object

Draws the BSOD on a Curses’ ‘window`, bounded by `width` and `height`.



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# File 'lib/bsod/linux-sparc.rb', line 78

def draw_curses(window, width, height)

  return if not BSOD::curses_inited?

  # Initializing colors (3 is any number)
  Curses::init_pair(3, Curses::COLOR_WHITE, Curses::COLOR_BLACK)

  window.attrset(Curses::color_pair(3) | Curses::A_BOLD)

  # Clears the screen with spaces
  0.upto(height) { window.addstr(" " * width) }

  # need to print at the bottom of the screen
  lines_ammount = height

  i = (lines_ammount - BSODTEXT.lines.size)
  BSODTEXT.each_line do |line|
    # This is a little hack to allow printing empty lines.
    # First I remove the '\n' at the end to avoid nasty things
    # and then I append a space, to prevent nil strings.
    line.chomp!
    line += " "

    window.setpos(i, 0)
    window.addstr line

    i += 1
  end
end