191 lines
5.9 KiB
C
191 lines
5.9 KiB
C
/****************************************************************************
|
|
* apps/graphics/tiff/tiff_initialize.c
|
|
*
|
|
* Copyright (C) 2011 Gregory Nutt. All rights reserved.
|
|
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in
|
|
* the documentation and/or other materials provided with the
|
|
* distribution.
|
|
* 3. Neither the name NuttX nor the names of its contributors may be
|
|
* used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
|
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
|
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
|
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
|
|
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
|
|
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
|
|
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
* POSSIBILITY OF SUCH DAMAGE.
|
|
*
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Included Files
|
|
****************************************************************************/
|
|
|
|
#include <nuttx/config.h>
|
|
|
|
#include <unistd.h>
|
|
#include <fcntl.h>
|
|
#include <assert.h>
|
|
#include <errno.h>
|
|
#include <debug.h>
|
|
|
|
#include <apps/tiff.h>
|
|
|
|
#include "tiff_internal.h"
|
|
|
|
/****************************************************************************
|
|
* Pre-Processor Definitions
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Private Types
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Private Data
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Public Data
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Private Functions
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Name: tiff_writeheader
|
|
*
|
|
* Description:
|
|
* Setup to create a new TIFF file.
|
|
*
|
|
* Input Parameters:
|
|
* info - A pointer to the caller allocated parameter passing/TIFF state instance.
|
|
*
|
|
* Returned Value:
|
|
* Zero (OK) on success. A negated errno value on failure.
|
|
*
|
|
****************************************************************************/
|
|
|
|
static inline int tiff_writeheader(FAR struct tiff_info_s *info)
|
|
{
|
|
struct tiff_header_s hdr;
|
|
int ret;
|
|
|
|
/* 0-1: Byte order */
|
|
|
|
#ifdef CONFIG_ENDIAN_BIG
|
|
hdr.order[0] = 'M'; /* "MM"=big endian */
|
|
hdr.order[1] = 'M';
|
|
#else
|
|
hdr.order[0] = 'I'; /* "II"=little endian */
|
|
hdr.order[1] = 'I';
|
|
#endif
|
|
|
|
/* 2-3: 42 in appropriate byte order */
|
|
|
|
tiff_put16(hdr.magic, 42);
|
|
|
|
/* 4-7: Offset to the first IFD */
|
|
|
|
tiff_put16(hdr.offset, sizeof(struct tiff_header_s));
|
|
|
|
/* Write the header to the output file */
|
|
|
|
ret = tiff_write(info->outfd, &hdr, sizeof(struct tiff_header_s));
|
|
if (ret == OK)
|
|
{
|
|
info->outsize = sizeof(struct tiff_header_s);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Public Functions
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Name: tiff_initialize
|
|
*
|
|
* Description:
|
|
* Setup to create a new TIFF file.
|
|
*
|
|
* Input Parameters:
|
|
* info - A pointer to the caller allocated parameter passing/TIFF state instance.
|
|
*
|
|
* Returned Value:
|
|
* Zero (OK) on success. A negated errno value on failure.
|
|
*
|
|
****************************************************************************/
|
|
|
|
int tiff_initialize(FAR struct tiff_info_s *info)
|
|
{
|
|
int ret = -EINVAL;
|
|
|
|
DEBUGASSERT(info && info->outfile && info->tmpfile1 && info->tmpfile2);
|
|
|
|
/* Open all output files */
|
|
|
|
info->outfd = open(info->outfile, O_WRONLY|O_CREAT|O_TRUNC, 0666);
|
|
if (info->outfd < 0)
|
|
{
|
|
gdbg("Failed to open %s for writing: %d\n", info->outfile, errno);
|
|
goto errout;
|
|
}
|
|
|
|
info->tmp1fd = open(info->tmpfile1, O_WRONLY|O_CREAT|O_TRUNC, 0666);
|
|
if (info->tmp1fd < 0)
|
|
{
|
|
gdbg("Failed to open %s for writing: %d\n", info->tmpfile1, errno);
|
|
goto errout_with_outfd;
|
|
}
|
|
|
|
info->tmp2fd = open(info->tmpfile1, O_WRONLY|O_CREAT|O_TRUNC, 0666);
|
|
if (info->tmp2fd < 0)
|
|
{
|
|
gdbg("Failed to open %s for writing: %d\n", info->tmpfile1, errno);
|
|
goto errout_with_tmp1fd;
|
|
}
|
|
|
|
/* Write the TIFF header data to the outfile */
|
|
|
|
ret = tiff_writeheader(info);
|
|
if (ret < 0)
|
|
{
|
|
goto errout_with_tmp2fd;
|
|
}
|
|
|
|
/* Write the IFD data to the outfile */
|
|
#warning "Missing Logic"
|
|
return OK;
|
|
|
|
errout_with_tmp2fd:
|
|
(void)close(info->tmp2fd);
|
|
info->tmp2fd = -1;
|
|
errout_with_tmp1fd:
|
|
(void)close(info->tmp1fd);
|
|
info->tmp1fd = -1;
|
|
errout_with_outfd:
|
|
(void)close(info->outfd);
|
|
info->outfd = -1;
|
|
errout:
|
|
return ret;
|
|
}
|
|
|