libexplain  1.4.D001
libexplain/buffer/v4l2_rect.c
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00001 /*
00002  * libexplain - a library of system-call-specific strerror replacements
00003  * Copyright (C) 2011, 2013 Peter Miller
00004  *
00005  * This program is free software; you can redistribute it and/or modify
00006  * it under the terms of the GNU Lesser General Public License as
00007  * published by the Free Software Foundation; either version 3 of the
00008  * License, or (at your option) any later version.
00009  *
00010  * This program is distributed in the hope that it will be useful,
00011  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00012  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00013  * Lesser General Public License for more details.
00014  *
00015  * You should have received a copy of the GNU Lesser General Public License
00016  * along with this program. If not, see <http://www.gnu.org/licenses/>.
00017  */
00018 
00019 #include <libexplain/ac/linux/videodev2.h>
00020 
00021 #include <libexplain/buffer/int32_t.h>
00022 #include <libexplain/buffer/v4l2_rect.h>
00023 #include <libexplain/buffer/pointer.h>
00024 #include <libexplain/is_efault.h>
00025 
00026 
00027 #ifdef HAVE_LINUX_VIDEODEV2_H
00028 
00029 void
00030 explain_buffer_v4l2_rect(explain_string_buffer_t *sb,
00031     const struct v4l2_rect *data)
00032 {
00033     if (explain_is_efault_pointer(data, sizeof(*data)))
00034     {
00035         explain_buffer_pointer(sb, data);
00036         return;
00037     }
00038 
00039     explain_string_buffer_puts(sb, "{ ");
00040     if (data->left || data->top)
00041     {
00042         explain_string_buffer_puts(sb, "left = ");
00043         explain_buffer_int32_t(sb, data->left);
00044         explain_string_buffer_puts(sb, ", top = ");
00045         explain_buffer_int32_t(sb, data->top);
00046         explain_string_buffer_puts(sb, ", ");
00047     }
00048     explain_string_buffer_puts(sb, "width = ");
00049     explain_buffer_int32_t(sb, data->width);
00050     explain_string_buffer_puts(sb, ", height = ");
00051     explain_buffer_int32_t(sb, data->height);
00052     explain_string_buffer_puts(sb, " }");
00053 }
00054 
00055 #endif
00056 
00057 /* vim: set ts=8 sw=4 et : */