118 lines
2.9 KiB
Fortran
118 lines
2.9 KiB
Fortran
program noisepic
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use spitpgm
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use pixrgb
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implicit none
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integer :: numframe = 0
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integer :: nbarg
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character(len=256) :: arg
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nbarg = IARGC()
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if (nbarg .GT. 0) then
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call GETARG(1, arg)
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! write (0, '(A40, A5)') "argument = ", arg
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read (arg, *) numframe
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endif
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call make_noise_color_pic(numframe)
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contains
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!-- ------------------------------------------------------------------
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!-
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!- Black & White
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!-
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subroutine make_noise_bw_pic (value)
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implicit none
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integer, intent(in) :: value
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integer :: foo
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integer, dimension(:,:), allocatable :: pic
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character (len=280) :: filename
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allocate(pic(320, 240))
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pic = 30 !- clear the picz
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call srand(value+34)
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foo = irand()
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print *, 'val=', value, ' rnd=', foo
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call plot_noise_bw_pic(pic, 15000)
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write (filename, "(a, i5.5, a)") "", value, ".pgm"
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call spit_as_pgm_8(pic, trim(filename))
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end subroutine
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!-- ------------------------------------------------------------------
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subroutine plot_noise_bw_pic(picz, nbre)
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implicit none
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integer, dimension(:,:), intent(inout) :: picz
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integer, intent(in) :: nbre
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integer :: width, height
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integer :: quux, ix, iy, iv
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width = ubound(picz, 1) ; height = ubound(picz, 2)
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! print *, 'sz picz', width, height
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do quux=1, nbre
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ix = 1 + mod ( irand(), width )
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iy = 1 + mod ( irand(), height )
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iv = mod ( irand(), 256 )
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! print *, ix, iy
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picz(ix, iy) = iv
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enddo
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end subroutine
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!-- ------------------------------------------------------------------
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!-
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!- Colorized
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!-
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subroutine make_noise_color_pic (value)
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implicit none
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integer, intent(in) :: value
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integer :: foo
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type(t_pixrgb), dimension(:,:), allocatable :: pix
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character (len=280) :: filename
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allocate(pix(320, 240))
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call rgbpix_set_to_rgb(pix, 30, 30, 60)
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call srand(value+34)
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foo = irand()
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print *, 'val=', value, ' rnd=', foo
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call plot_noise_color_pic(pix, 15000)
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write (filename, "(a, i5.5, a)") "./", value, ".pnm"
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call rgbpix_spit_as_pnm_8(pix, trim(filename))
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end subroutine
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!-- ------------------------------------------------------------------
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subroutine plot_noise_color_pic(prgb, nbre)
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implicit none
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type(t_pixrgb), dimension(:,:), intent(inout) :: prgb
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integer, intent(in) :: nbre
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integer :: quux, ix, iy, width, height
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width = ubound(prgb, 1) ; height = ubound(prgb, 2)
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do quux=1, nbre
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ix = 1 + mod ( irand(), width )
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iy = 1 + mod ( irand(), height )
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prgb(ix, iy)%r = 64 + mod ( irand(), 127 )
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prgb(ix, iy)%g = 64 + mod ( irand(), 127 )
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prgb(ix, iy)%b = 64 + mod ( irand(), 127 )
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enddo
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end subroutine
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!-- ------------------------------------------------------------------
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end program
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