diff options
Diffstat (limited to 'ocaml-binary-annot/otherlibs/graph/dump_img.c')
| -rw-r--r-- | ocaml-binary-annot/otherlibs/graph/dump_img.c | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/ocaml-binary-annot/otherlibs/graph/dump_img.c b/ocaml-binary-annot/otherlibs/graph/dump_img.c new file mode 100644 index 0000000000..8c82c21bfb --- /dev/null +++ b/ocaml-binary-annot/otherlibs/graph/dump_img.c @@ -0,0 +1,55 @@ +/***********************************************************************/ +/* */ +/* Objective Caml */ +/* */ +/* Xavier Leroy, projet Cristal, INRIA Rocquencourt */ +/* */ +/* Copyright 1996 Institut National de Recherche en Informatique et */ +/* en Automatique. All rights reserved. This file is distributed */ +/* under the terms of the GNU Library General Public License, with */ +/* the special exception on linking described in file ../../LICENSE. */ +/* */ +/***********************************************************************/ + +/* $Id$ */ + +#include "libgraph.h" +#include "image.h" +#include <alloc.h> +#include <memory.h> + +value caml_gr_dump_image(value image) +{ + int width, height, i, j; + XImage * idata, * imask; + value m = Val_unit; + + Begin_roots2(image, m); + caml_gr_check_open(); + width = Width_im(image); + height = Height_im(image); + m = alloc(height, 0); + for (i = 0; i < height; i++) { + value v = alloc(width, 0); + modify(&Field(m, i), v); + } + + idata = + XGetImage(caml_gr_display, Data_im(image), 0, 0, width, height, (-1), ZPixmap); + for (i = 0; i < height; i++) + for (j = 0; j < width; j++) + Field(Field(m, i), j) = Val_int(caml_gr_rgb_pixel(XGetPixel(idata, j, i))); + XDestroyImage(idata); + + if (Mask_im(image) != None) { + imask = + XGetImage(caml_gr_display, Mask_im(image), 0, 0, width, height, 1, ZPixmap); + for (i = 0; i < height; i++) + for (j = 0; j < width; j++) + if (XGetPixel(imask, j, i) == 0) + Field(Field(m, i), j) = Val_int(Transparent); + XDestroyImage(imask); + } + End_roots(); + return m; +} |