2022-11-30 01:02:11 +01:00
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!-
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! This module try to write PNM complient files - ymmv
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2022-11-30 02:31:43 +01:00
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!-
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2022-11-30 01:02:11 +01:00
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module spitpgm
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implicit none
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contains
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!-------------------------------------------------------------------
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!-
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! This subroutine try to scale the values to fit the 16 bit range
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!
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subroutine spit_as_pgm_eq(pic, fname)
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integer, intent(in), dimension (:,:) :: pic
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character (len=*), intent(in) :: fname
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integer :: io, foo
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integer :: ix, iy
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real :: fk, fpix
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write(0, '(1X, A)') "> spit_as_pgm to " // trim(fname)
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open(newunit=io, file=fname)
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write (io, '(a2)') "P2"
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write (io, '(i0," ",i0)') size(pic, 1), size(pic, 2)
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write (io, '(i0)') 65535
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foo = MAXVAL(pic)
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if (foo .EQ. 0) then
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print *, " IS SOMETHING WRONG GOING TO HAPPEN ?"
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do ix = 1, size(pic)
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write (io, "(i0)") 0
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enddo
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else
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fk = float(foo) / 65535.0
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print *, " max pix value", foo, " fk = ", fk
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do iy = 1, ubound(pic, 2)
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do ix = 1, ubound(pic, 1)
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fpix = float(pic(ix, iy)) / fk
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write (io, "(i0)") int(fpix)
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end do
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end do
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endif
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close(io)
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end subroutine
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!-------------------------------------------------------------------
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2022-11-30 02:31:43 +01:00
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!-
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! 16 bits - 65535 levels portable grey map file
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!-
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2022-11-30 01:02:11 +01:00
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subroutine spit_as_pgm_16(pic, fname)
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integer, intent(in), dimension (:,:) :: pic
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character (len=*), intent(in) :: fname
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integer :: io, foo
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integer :: ix, iy
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open(newunit=io, file=fname)
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write (io, '(a2)') "P2"
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write (io, '(i0," ",i0)') size(pic, 1), size(pic, 2)
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2022-11-30 02:31:43 +01:00
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write (io, '(i0)') 65535
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2022-11-30 01:02:11 +01:00
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do iy=1,ubound(pic, 2)
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do ix=1, ubound(pic, 1)
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foo = pic(ix, iy)
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if (foo .GT. 65535) foo = 65530
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2022-11-30 02:31:43 +01:00
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write(io, "(i5)") foo
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2022-11-30 01:02:11 +01:00
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enddo
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enddo
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close(io)
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end subroutine
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!-------------------------------------------------------------------
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subroutine spit_as_pgm_8(pic, fname)
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integer, intent(in), dimension (:,:) :: pic
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character (len=*), intent(in) :: fname
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integer :: io, foo
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integer :: ix, iy
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! XXX print *, "> spit_as_pgm_8 to ", fname
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foo = MAXVAL(pic)
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! XXX print *, " max = ", foo
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open(newunit=io, file=fname)
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write (io, '(a2)') "P2"
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write (io, '(i0," ",i0)') size(pic, 1), size(pic, 2)
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write (io, '(i0)') 255
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do iy=1,ubound(pic, 2)
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do ix=1, ubound(pic, 1)
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foo = pic(ix, iy)
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if (foo .GT. 255) foo = 255
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write(io, "(i3)") foo
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enddo
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enddo
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close(io)
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end subroutine
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!-------------------------------------------------------------------
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end module spitpgm
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