From 0e69fff93f13982c5f90a88050bcbd8bd1e0b2d7 Mon Sep 17 00:00:00 2001 From: patacongo Date: Tue, 20 Sep 2011 19:19:33 +0000 Subject: Add beginning of a TIFF file creation library git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@3964 42af7a65-404d-4744-a932-0658087f49c3 --- apps/graphics/tiff/tiff_initialize.c | 190 +++++++++++++++++++++++++++++++++++ 1 file changed, 190 insertions(+) create mode 100644 apps/graphics/tiff/tiff_initialize.c (limited to 'apps/graphics/tiff/tiff_initialize.c') diff --git a/apps/graphics/tiff/tiff_initialize.c b/apps/graphics/tiff/tiff_initialize.c new file mode 100644 index 000000000..8998f37c4 --- /dev/null +++ b/apps/graphics/tiff/tiff_initialize.c @@ -0,0 +1,190 @@ +/**************************************************************************** + * apps/graphics/tiff/tiff_initialize.c + * + * Copyright (C) 2011 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt + * + * 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 + +#include +#include +#include +#include +#include + +#include + +#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; +} + -- cgit v1.2.3