2023-06-10 08:59:54 +11:00
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module noisepictures
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use pixrgb
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implicit none
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contains ! a lot of garbage ?
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!-----------------------------------------------------------------------
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subroutine noise_gray8_pic(pict, nbre)
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implicit none
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integer, dimension(:,:), intent(inout) :: pict
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integer, intent(in) :: nbre
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integer :: quux, ix, iy, width, height
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width = ubound(pict, 1) ; height = ubound(pict, 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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pict(ix, iy) = mod ( irand(), 256 )
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enddo
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end subroutine
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!-----------------------------------------------------------------------
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subroutine noise_gray16_pic(pict, nbre)
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implicit none
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integer, dimension(:,:), intent(inout) :: pict
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integer, intent(in) :: nbre
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integer :: quux, ix, iy, width, height
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width = ubound(pict, 1) ; height = ubound(pict, 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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pict(ix, iy) = mod ( irand(), 65536 )
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enddo
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end subroutine
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!-----------------------------------------------------------------------
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subroutine noise_rgb8_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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print *, 'noise_rgb_pic', nbre
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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 = mod ( irand(), 256 )
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prgb(ix, iy)%g = mod ( irand(), 256 )
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prgb(ix, iy)%b = mod ( irand(), 256 )
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enddo
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end subroutine
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!-----------------------------------------------------------------------
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subroutine noise_rgb16_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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print *, 'noise_rgb_pic', nbre
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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 = mod ( irand(), 65536 )
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prgb(ix, iy)%g = mod ( irand(), 65536 )
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prgb(ix, iy)%b = mod ( irand(), 65536 )
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enddo
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2023-06-10 17:52:36 +11:00
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end subroutine
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!-----------------------------------------------------------------------
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! new: Sat Jun 10 06:50:51 UTC 2023
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subroutine noise_range_rgb16_pic(prgb, rngs, 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) :: rngs(6)
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integer, intent(in) :: nbre
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2023-10-11 07:08:50 +11:00
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integer :: foo, ix, iy
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2023-06-10 17:52:36 +11:00
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2023-10-11 07:08:50 +11:00
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! print *, 'noise rgb16 range', nbre
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! print *, 'rngs', rngs
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2023-06-10 17:52:36 +11:00
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2023-10-11 07:08:50 +11:00
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do foo = 1, nbre
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ix = 1 + mod ( irand(), ubound(prgb, 1) )
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iy = 1 + mod ( irand(), ubound(prgb, 2) )
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prgb(ix, iy)%r = rngs(1) + mod(irand(), rngs(2) - rngs(1))
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2023-06-10 17:52:36 +11:00
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2023-10-11 07:08:50 +11:00
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ix = 1 + mod ( irand(), ubound(prgb, 1) )
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iy = 1 + mod ( irand(), ubound(prgb, 2) )
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prgb(ix, iy)%g = rngs(3) + mod(irand(), rngs(4) - rngs(3))
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ix = 1 + mod ( irand(), ubound(prgb, 1) )
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iy = 1 + mod ( irand(), ubound(prgb, 2) )
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prgb(ix, iy)%b = rngs(5) + mod(irand(), rngs(6) - rngs(5))
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2023-06-10 17:52:36 +11:00
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enddo
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2023-06-10 08:59:54 +11:00
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end subroutine
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!-----------------------------------------------------------------------
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end module noisepictures
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