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- C*****************************************************************************
- C BM.FOR
- C
- C This sample program demontsrates the use of the PGL Bitmap functions
- C to save a bitmap image, a row at a time into a PGL drawing file.
- C The example getpixel function returns 0-color values for even rows
- C and 1-color values for odd rows.
- C****************************************************************************
- include "pgl.for"
- integer*2 i, j, err, bpp, compress, maxX, maxY, getpixel
- integer*2 data(640)
-
- C
- C Open A Drawing File.
- C
- call pgInitDrw( "bm.plt"//char(0), 640,480, err)
- if( err.ne.0)then
- stop ' Error opeing drawing file'
- endif
- C
- C Initialize a PGL drawing file bitmap
- C
- maxX = 640
- maxY = 480
- bpp = 1
- compress=1
- call pgBMInit(0,0,maxX,maxY,bpp,compress)
- C
- C Save a screen bitmap, for printing.
- C This code sample assumes you have a 'getpixel' function
- C to return each screen pixel color, a dummy 'getpixel' is used
- C below...
- C
- do j=1,maxY
- do i=1,maxX
- data(i) = getpixel(i,j)
- end do
- call pgBMData(j-1,data)
- end do
- C
- C Termmiante the bitmap
- C
- call pgBMEnd()
- C
- C Close The Drawing File.
- C
- call pgEndDrw()
- C
- END
- C
- C dummy getpixel function - replace with one from your screen graphics
- C library
- C
- integer*2 function getpixel(i,j)
- integer*2 i,j
- getpixel = mod(j, 2)
- return
- end