watcom build imago.lib

[dosdemo] / libs / imago / src / file_ppm.c

diff --git a/libs/imago/src/file_ppm.c b/libs/imago/src/file_ppm.c
deleted file mode 100644 (file)
index ffe1e46..0000000
--- a/libs/imago/src/file_ppm.c
+++ /dev/null
@@ -1,153 +0,0 @@
-/*
-libimago - a multi-format image file input/output library.
-Copyright (C) 2010 John Tsiombikas <nuclear@member.fsf.org>
-
-This program is free software: you can redistribute it and/or modify
-it under the terms of the GNU Lesser General Public License as published
-by the Free Software Foundation, either version 3 of the License, or
-(at your option) any later version.
-
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU Lesser General Public License for more details.
-
-You should have received a copy of the GNU Lesser General Public License
-along with this program.  If not, see <http://www.gnu.org/licenses/>.
-*/
-
-/* -- Portable Pixmap (PPM) module -- */
-
-#include <string.h>
-#include "imago2.h"
-#include "ftype_module.h"
-
-static int check(struct img_io *io);
-static int read(struct img_pixmap *img, struct img_io *io);
-static int write(struct img_pixmap *img, struct img_io *io);
-
-int img_register_ppm(void)
-{
-       static struct ftype_module mod = {".ppm", check, read, write};
-       return img_register_module(&mod);
-}
-
-
-static int check(struct img_io *io)
-{
-       char id[2];
-       int res = -1;
-       long pos = io->seek(0, SEEK_CUR, io->uptr);
-
-       if(io->read(id, 2, io->uptr) < 2) {
-               io->seek(pos, SEEK_SET, io->uptr);
-               return -1;
-       }
-
-       if(id[0] == 'P' && (id[1] == '6' || id[1] == '3')) {
-               res = 0;
-       }
-       io->seek(pos, SEEK_SET, io->uptr);
-       return res;
-}
-
-static int iofgetc(struct img_io *io)
-{
-       char c;
-       return io->read(&c, 1, io->uptr) < 1 ? -1 : c;
-}
-
-static char *iofgets(char *buf, int size, struct img_io *io)
-{
-       int c;
-       char *ptr = buf;
-
-       while(--size > 0 && (c = iofgetc(io)) != -1) {
-               *ptr++ = c;
-               if(c == '\n') break;
-       }
-       *ptr = 0;
-
-       return ptr == buf ? 0 : buf;
-}
-
-/* TODO: implement P3 reading */
-static int read(struct img_pixmap *img, struct img_io *io)
-{
-       char buf[256];
-       int xsz, ysz, maxval, got_hdrlines = 1;
-
-       if(!iofgets(buf, sizeof buf, io)) {
-               return -1;
-       }
-       if(!(buf[0] == 'P' && (buf[1] == '6' || buf[1] == '3'))) {
-               return -1;
-       }
-
-       while(got_hdrlines < 3 && iofgets(buf, sizeof buf, io)) {
-               if(buf[0] == '#') continue;
-
-               switch(got_hdrlines) {
-               case 1:
-                       if(sscanf(buf, "%d %d\n", &xsz, &ysz) < 2) {
-                               return -1;
-                       }
-                       break;
-
-               case 2:
-                       if(sscanf(buf, "%d\n", &maxval) < 1) {
-                               return -1;
-                       }
-               default:
-                       break;
-               }
-               got_hdrlines++;
-       }
-
-       if(xsz < 1 || ysz < 1 || maxval != 255) {
-               return -1;
-       }
-
-       if(img_set_pixels(img, xsz, ysz, IMG_FMT_RGB24, 0) == -1) {
-               return -1;
-       }
-
-       if(io->read(img->pixels, xsz * ysz * 3, io->uptr) < (unsigned int)(xsz * ysz * 3)) {
-               return -1;
-       }
-       return 0;
-}
-
-static int write(struct img_pixmap *img, struct img_io *io)
-{
-       int sz;
-       char buf[256];
-       struct img_pixmap tmpimg;
-
-       img_init(&tmpimg);
-
-       if(img->fmt != IMG_FMT_RGB24) {
-               if(img_copy(&tmpimg, img) == -1) {
-                       return -1;
-               }
-               if(img_convert(&tmpimg, IMG_FMT_RGB24) == -1) {
-                       return -1;
-               }
-               img = &tmpimg;
-       }
-
-       sprintf(buf, "P6\n#written by libimago2\n%d %d\n255\n", img->width, img->height);
-       if(io->write(buf, strlen(buf), io->uptr) < strlen(buf)) {
-               img_destroy(&tmpimg);
-               return -1;
-       }
-
-       sz = img->width * img->height * 3;
-       if(io->write(img->pixels, sz, io->uptr) < (unsigned int)sz) {
-               img_destroy(&tmpimg);
-               return -1;
-       }
-
-       img_destroy(&tmpimg);
-       return 0;
-}