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authorschodet2004-05-02 07:45:50 +0000
committerschodet2004-05-02 07:45:50 +0000
commit7a87ac98381ad83d6276df2fc44c72a830606575 (patch)
tree190e7a3c3dbeebfcfa8fc7a89adb0f97e7e29f4c /2004/i/nono/src/image/raw_loader.cc
parent79c6701a4dce6289b6af64fdbad2e6aa17ea4e1c (diff)
Ajout du raw loader.
Diffstat (limited to '2004/i/nono/src/image/raw_loader.cc')
-rw-r--r--2004/i/nono/src/image/raw_loader.cc52
1 files changed, 52 insertions, 0 deletions
diff --git a/2004/i/nono/src/image/raw_loader.cc b/2004/i/nono/src/image/raw_loader.cc
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+++ b/2004/i/nono/src/image/raw_loader.cc
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+// raw_loader.cc
+// nono - programme du robot 2004. {{{
+//
+// Copyright (C) 2004 Nicolas Schodet
+//
+// Robot APB Team/Efrei 2004.
+// Web: http://assos.efrei.fr/robot/
+// Email: robot AT efrei DOT fr
+//
+// This program is free software; you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation; either version 2 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 General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+//
+// }}}
+#include "raw_loader.h"
+#include "utils/errno_exception.h"
+
+#include <fcntl.h>
+#include <unistd.h>
+
+/// Constructeur.
+RawLoader::RawLoader (const std::string &file, int width, int height,
+ ImageLoader::ColorSpace colorSpace)
+ : file_ (file), width_ (width), height_ (height), colorSpace_ (colorSpace)
+{
+}
+
+/// Lit une image, retourne le nombre d'octets lus.
+int
+RawLoader::read (void *buf, int size) const
+{
+ // Ouverture.
+ int fd = open (file_.c_str (), O_RDONLY, 0);
+ if (fd == -1)
+ throw errno_exception (errno);
+ // Lecture.
+ int r = ::read (fd, buf, size);
+ // Fermeture.
+ close (fd);
+ return r;
+}
+