6cbc90150c
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@3972 42af7a65-404d-4744-a932-0658087f49c3
911 lines
30 KiB
C
911 lines
30 KiB
C
/****************************************************************************
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* apps/graphics/tiff/tiff_initialize.c
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*
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* Copyright (C) 2011 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <string.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <time.h>
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#include <assert.h>
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#include <errno.h>
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#include <debug.h>
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#include <apps/tiff.h>
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#include "tiff_internal.h"
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/****************************************************************************
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* Pre-Processor Definitions
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****************************************************************************/
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/* Bi-level Images
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*
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* Offset Description Contents/Notes
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* Header: 0 Byte Order "II" or "MM"
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* 2 Magic Number 42
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* 4 1st IFD offset 10
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* 8 [2 bytes padding]
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* IFD: 10 Number of Directory Entries 13
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* 12 NewSubfileType
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* 24 ImageWidth Number of columns is a user parameter
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* 36 ImageLength Number of rows is a user parameter
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* 48 Compression Hard-coded no compression (for now)
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* 60 PhotometricInterpretation Value is a user parameter
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* 72 StripOffsets Offset and count determined as strips added
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* 84 RowsPerStrip Value is a user parameter
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* 96 StripByteCounts Offset and count determined as strips added
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* 108 XResolution Value is a user parameter
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* 120 YResolution Value is a user parameter
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* 132 Resolution Unit Hard-coded to "inches"
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* 144 Software
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* 156 DateTime
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* 168 Next IFD offset 0
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* 170 [2 bytes padding]
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* Values:
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* 172 XResolution Hard-coded to 300/1
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* 180 YResolution Hard-coded to 300/1
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* 188 "NuttX" Length = 6 (including NUL terminator)
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* 194 "YYYY:MM:DD HH:MM:SS" Length = 20 (ncluding NUL terminator)
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* 214 [2 bytes padding]
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* 216 StripByteCounts Beginning of strip byte counts
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* xxx StripOffsets Beginning of strip offsets
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* xxx [Probably padding]
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* xxx Data for strips Beginning of strip data
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*/
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#define TIFF_IFD_OFFSET (SIZEOF_TIFF_HEADER+2)
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#define TIFF_BILEV_NIFDENTRIES 13
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#define TIFF_BILEV_STRIPIFDOFFS 72
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#define TIFF_BILEV_STRIPBCIFDOFFS 96
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#define TIFF_BILEV_VALOFFSET 172
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#define TIFF_BILEV_XRESOFFSET 172
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#define TIFF_BILEV_YRESOFFSET 180
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#define TIFF_BILEV_SWOFFSET 188
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#define TIFF_BILEV_DATEOFFSET 194
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#define TIFF_BILEV_STRIPBCOFFSET 216
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#define TIFF_SOFTWARE_STRING "NuttX"
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#define TIFF_SOFTWARE_STRLEN 6
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#define TIFF_DATETIME_FORMAT "%Y:%m:%d %H:%M:%S"
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#define TIFF_DATETIME_STRLEN 20
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/* Greyscale Images have one additional IFD entry: BitsPerSample (4 or 8)
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*
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* Header: 0 Byte Order "II" or "MM"
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* 2 Magic Number 42
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* 4 1st IFD offset 10
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* 8 [2 bytes padding]
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* IFD: 10 Number of Directory Entries 14
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* 12 NewSubfileType
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* 24 ImageWidth Number of columns is a user parameter
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* 36 ImageLength Number of rows is a user parameter
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* 48 BitsPerSample
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* 60 Compression Hard-coded no compression (for now)
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* 72 PhotometricInterpretation Value is a user parameter
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* 84 StripOffsets Offset and count determined as strips added
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* 96 RowsPerStrip Value is a user parameter
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* 108 StripByteCounts Offset and count determined as strips added
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* 120 XResolution Value is a user parameter
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* 132 YResolution Value is a user parameter
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* 144 Resolution Unit Hard-coded to "inches"
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* 156 Software
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* 168 DateTime
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* 180 Next IFD offset 0
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* 182 [2 bytes padding]
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* Values:
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* 184 XResolution Hard-coded to 300/1
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* 192 YResolution Hard-coded to 300/1
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* 200 "NuttX" Length = 6 (including NUL terminator)
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* 206 "YYYY:MM:DD HH:MM:SS" Length = 20 (ncluding NUL terminator)
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* 226 [2 bytes padding]
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* 228 StripByteCounts Beginning of strip byte counts
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* xxx StripOffsets Beginning of strip offsets
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* xxx [Probably padding]
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* xxx Data for strips Beginning of strip data
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*/
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#define TIFF_GREY_NIFDENTRIES 14
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#define TIFF_GREY_STRIPIFDOFFS 84
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#define TIFF_GREY_STRIPBCIFDOFFS 108
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#define TIFF_GREY_VALOFFSET 184
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#define TIFF_GREY_XRESOFFSET 184
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#define TIFF_GREY_YRESOFFSET 192
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#define TIFF_GREY_SWOFFSET 200
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#define TIFF_GREY_DATEOFFSET 206
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#define TIFF_GREY_STRIPBCOFFSET 228
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/* RGB Images have two additional IFD entries: BitsPerSample (8,8,8) and
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* SamplesPerPixel (3):
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*
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* Header: 0 Byte Order "II" or "MM"
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* 2 Magic Number 42
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* 4 1st IFD offset 10
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* 8 [2 bytes padding]
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* IFD: 10 Number of Directory Entries 15
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* 12 NewSubfileType
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* 24 ImageWidth Number of columns is a user parameter
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* 36 ImageLength Number of rows is a user parameter
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* 48 BitsPerSample 8, 8, 8
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* 60 Compression Hard-coded no compression (for now)
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* 72 PhotometricInterpretation Value is a user parameter
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* 84 StripOffsets Offset and count determined as strips added
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* 96 SamplesPerPixel Hard-coded to 3
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* 108 RowsPerStrip Value is a user parameter
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* 120 StripByteCounts Offset and count determined as strips added
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* 132 XResolution Value is a user parameter
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* 144 YResolution Value is a user parameter
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* 156 Resolution Unit Hard-coded to "inches"
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* 168 Software
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* 180 DateTime
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* 192 Next IFD offset 0
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* 194 [2 bytes padding]
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* Values:
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* 196 XResolution Hard-coded to 300/1
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* 204 YResolution Hard-coded to 300/1
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* 212 BitsPerSample 8, 8, 8
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* 218 [2 bytes padding]
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* 220 "NuttX" Length = 6 (including NUL terminator)
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* 226 "YYYY:MM:DD HH:MM:SS" Length = 20 (ncluding NUL terminator)
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* 246 [2 bytes padding]
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* 248 StripByteCounts Beginning of strip byte counts
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* xxx StripOffsets Beginning of strip offsets
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* xxx [Probably padding]
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* xxx Data for strips Beginning of strip data
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*/
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#define TIFF_RGB_NIFDENTRIES 15
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#define TIFF_RGB_STRIPIFDOFFS 84
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#define TIFF_RGB_STRIPBCIFDOFFS 120
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#define TIFF_RGB_VALOFFSET 196
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#define TIFF_RGB_XRESOFFSET 196
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#define TIFF_RGB_YRESOFFSET 204
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#define TIFF_RGB_BPSOFFSET 212
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#define TIFF_RGB_SWOFFSET 220
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#define TIFF_RGB_DATEOFFSET 226
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#define TIFF_RGB_STRIPBCOFFSET 248
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/* Debug *******************************************************************/
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/* CONFIG_DEBUG_TIFFOFFSETS may be defined (along with CONFIG_DEBUG and
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* CONFIG_DEBUG_GRAPHICS) in order to verify the pre-determined TIFF file
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* offsets.
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*/
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#if !defined(CONFIG_DEBUG) || !defined(CONFIG_DEBUG_GRAPHICS)
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# undef CONFIG_DEBUG_TIFFOFFSETS
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#endif
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#ifdef CONFIG_DEBUG_TIFFOFFSETS
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# define tiff_offset(o,l) (o) += (l)
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# define tiff_checkoffs(o,x) ASSERT((o) == (x))
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#else
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# define tiff_offset(o,l)
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# define tiff_checkoffs(o,x)
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#endif
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/****************************************************************************
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* Private Types
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****************************************************************************/
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/****************************************************************************
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* Private Data
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****************************************************************************/
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static const struct tiff_filefmt_s g_bilevinfo =
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{
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TIFF_BILEV_NIFDENTRIES, /* nifdentries, Number of IFD entries */
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TIFF_BILEV_STRIPIFDOFFS, /* soifdoffset, Offset to StripOffset IFD entry */
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TIFF_BILEV_STRIPBCIFDOFFS, /* sbcifdoffset, Offset to StripByteCount IFD entry */
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TIFF_BILEV_VALOFFSET, /* valoffset, Offset to first values */
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TIFF_BILEV_XRESOFFSET, /* xresoffset, Offset to XResolution values */
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TIFF_BILEV_YRESOFFSET, /* yresoffset, Offset to yResolution values */
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TIFF_BILEV_SWOFFSET, /* swoffset, Offset to Software string */
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TIFF_BILEV_DATEOFFSET, /* dateoffset, Offset to DateTime string */
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TIFF_BILEV_STRIPBCOFFSET /* sbcoffset, Offset to StripByteCount values */
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};
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static const struct tiff_filefmt_s g_greyinfo =
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{
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TIFF_GREY_NIFDENTRIES, /* nifdentries, Number of IFD entries */
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TIFF_GREY_STRIPIFDOFFS, /* soifdoffset, Offset to StripOffset IFD entry */
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TIFF_GREY_STRIPBCIFDOFFS, /* sbcifdoffset, Offset to StripByteCount IFD entry */
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TIFF_GREY_VALOFFSET, /* valoffset, Offset to first values */
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TIFF_GREY_XRESOFFSET, /* xresoffset, Offset to XResolution values */
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TIFF_GREY_YRESOFFSET, /* yresoffset, Offset to yResolution values */
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TIFF_GREY_SWOFFSET, /* swoffset, Offset to Software string */
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TIFF_GREY_DATEOFFSET, /* dateoffset, Offset to DateTime string */
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TIFF_GREY_STRIPBCOFFSET /* sbcoffset, Offset to StripByteCount values */
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};
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static const struct tiff_filefmt_s g_rgbinfo =
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{
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TIFF_RGB_NIFDENTRIES, /* nifdentries, Number of IFD entries */
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TIFF_RGB_STRIPIFDOFFS, /* soifdoffset, Offset to StripOffset IFD entry */
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TIFF_RGB_STRIPBCIFDOFFS, /* sbcifdoffset, Offset to StripByteCount IFD entry */
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TIFF_RGB_VALOFFSET, /* valoffset, Offset to first values */
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TIFF_RGB_XRESOFFSET, /* xresoffset, Offset to XResolution values */
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TIFF_RGB_YRESOFFSET, /* yresoffset, Offset to yResolution values */
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TIFF_RGB_SWOFFSET, /* swoffset, Offset to Software string */
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TIFF_RGB_DATEOFFSET, /* dateoffset, Offset to DateTime string */
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TIFF_RGB_STRIPBCOFFSET /* sbcoffset, Offset to StripByteCount values */
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};
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/****************************************************************************
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* Public Data
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****************************************************************************/
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/****************************************************************************
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* Private Functions
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****************************************************************************/
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/****************************************************************************
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* Name: tiff_putheader
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*
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* Description:
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* Setup to create a new TIFF file.
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*
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* Input Parameters:
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* info - A pointer to the caller allocated parameter passing/TIFF state
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* instance.
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*
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* Returned Value:
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* Zero (OK) on success. A negated errno value on failure.
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*
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****************************************************************************/
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static inline int tiff_putheader(FAR struct tiff_info_s *info)
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{
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struct tiff_header_s hdr;
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int ret;
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/* 0-1: Byte order */
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#ifdef CONFIG_ENDIAN_BIG
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hdr.order[0] = 'M'; /* "MM"=big endian */
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hdr.order[1] = 'M';
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#else
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hdr.order[0] = 'I'; /* "II"=little endian */
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hdr.order[1] = 'I';
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#endif
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/* 2-3: 42 in appropriate byte order */
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tiff_put16(hdr.magic, 42);
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/* 4-7: Offset to the first IFD */
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tiff_put32(hdr.offset, TIFF_IFD_OFFSET);
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/* Write the header to the output file */
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ret = tiff_write(info->outfd, &hdr, SIZEOF_TIFF_HEADER);
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if (ret != OK)
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{
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return ret;
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}
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/* Two pad bytes following the header */
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ret = tiff_putint16(info->outfd, 0);
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return ret;
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}
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/****************************************************************************
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* Name: tiff_putifdentry
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*
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* Description:
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* Write an IFD entry to outfile
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*
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* Input Parameters:
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* info - A pointer to the caller allocated parameter passing/TIFF state
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* instance.
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* tag - The value for the IFD tag field
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* type - The value for the IFD type field
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* count - The value for the IFD count field
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* offset - The value for the IFD offset field
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*
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* Returned Value:
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* Zero (OK) on success. A negated errno value on failure.
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*
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****************************************************************************/
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static int tiff_putifdentry(FAR struct tiff_info_s *info, uint16_t tag,
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uint16_t type, uint32_t count, uint32_t offset)
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{
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struct tiff_ifdentry_s ifd;
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tiff_put16(ifd.tag, tag);
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tiff_put16(ifd.type, type);
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tiff_put32(ifd.count, count);
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tiff_put32(ifd.offset, offset);
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return tiff_write(info->outfd, &ifd, SIZEOF_IFD_ENTRY);
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}
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/****************************************************************************
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* Name: tiff_putifdentry
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*
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* Description:
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* Write an IFD with a 16-bit immediate value
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*
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* Input Parameters:
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* info - A pointer to the caller allocated parameter passing/TIFF state
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* instance.
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* tag - The value for the IFD tag field
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* type - The value for the IFD type field
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* count - The value for the IFD count field
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* value - The 16-bit immediate value
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*
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* Returned Value:
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* Zero (OK) on success. A negated errno value on failure.
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*
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****************************************************************************/
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static int tiff_putifdentry16(FAR struct tiff_info_s *info, uint16_t tag,
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uint16_t type, uint32_t count, uint16_t value)
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{
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union
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{
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uint8_t b[4];
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uint32_t w;
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} u;
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u.w = 0;
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tiff_put16(u.b, value);
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return tiff_putifdentry(info, tag, count, type, u.w);
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}
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/****************************************************************************
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* Name: tiff_datetime
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*
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* Description:
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* Get the DateTime string
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*
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* Input Parameters:
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*
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*
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* Returned Value:
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* Zero (OK) on success. A negated errno value on failure.
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*
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****************************************************************************/
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static int tiff_datetime(FAR char *timbuf, unsigned int buflen)
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{
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struct timespec ts;
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struct tm tm;
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int ret;
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/* Get the current time */
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ret = clock_gettime(CLOCK_REALTIME, &ts);
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if (ret < 0)
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{
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gdbg("clock_gettime failed: %d\n", errno);
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return ERROR;
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}
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/* Break the current time up into the format needed by strftime */
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(void)gmtime_r((FAR const time_t*)&ts.tv_sec, &tm);
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/* Comvert the current time in the TIFF format */
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(void)strftime(timbuf, buflen, TIFF_DATETIME_FORMAT, &tm);
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return OK;
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}
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: tiff_initialize
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*
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* Description:
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* Setup to create a new TIFF file.
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*
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* Input Parameters:
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* info - A pointer to the caller allocated parameter passing/TIFF state instance.
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*
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* Returned Value:
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* Zero (OK) on success. A negated errno value on failure.
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*
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****************************************************************************/
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int tiff_initialize(FAR struct tiff_info_s *info)
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{
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uint16_t val16;
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#if CONFIG_DEBUG_TIFFOFFSETS
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off_t offset = 0;
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#endif
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char timbuf[TIFF_DATETIME_STRLEN + 8];
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int ret = -EINVAL;
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DEBUGASSERT(info && info->outfile && info->tmpfile1 && info->tmpfile2);
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/* Open all output files */
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info->outfd = open(info->outfile, O_RDWR|O_CREAT|O_TRUNC, 0666);
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if (info->outfd < 0)
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{
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gdbg("Failed to open %s for reading/writing: %d\n", info->outfile, errno);
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goto errout;
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}
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info->tmp1fd = open(info->tmpfile1, O_RDWR|O_CREAT|O_TRUNC, 0666);
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if (info->tmp1fd < 0)
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{
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gdbg("Failed to open %s for reading/writing: %d\n", info->tmpfile1, errno);
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goto errout;
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}
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info->tmp2fd = open(info->tmpfile1, O_RDWR|O_CREAT|O_TRUNC, 0666);
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if (info->tmp2fd < 0)
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{
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gdbg("Failed to open %s for reading/writing: %d\n", info->tmpfile1, errno);
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goto errout;
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}
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/* Make some decisions using the color format. Only the following are
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* supported:
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*/
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info->pps = info->imgwidth * info->rps; /* Pixels per strip */
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switch (info->colorfmt)
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{
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case FB_FMT_Y1: /* BPP=1, monochrome, 0=black */
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info->filefmt = &g_bilevinfo; /* Bi-level file image file info */
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info->imgflags = IMGFLAGS_FMT_Y1; /* Bit encoded image characteristics */
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info->bps = (info->pps + 7) >> 3; /* Bytes per strip */
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break;
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|
|
case FB_FMT_Y4: /* BPP=4, 4-bit greyscale, 0=black */
|
|
info->filefmt = &g_greyinfo; /* Greyscale file image file info */
|
|
info->imgflags = IMGFLAGS_FMT_Y4; /* Bit encoded image characteristics */
|
|
info->bps = (info->pps + 1) >> 1; /* Bytes per strip */
|
|
break;
|
|
|
|
case FB_FMT_Y8: /* BPP=8, 8-bit greyscale, 0=black */
|
|
info->filefmt = &g_greyinfo; /* Greyscale file image file info */
|
|
info->imgflags = IMGFLAGS_FMT_Y8; /* Bit encoded image characteristics */
|
|
info->bps = info->pps; /* Bytes per strip */
|
|
break;
|
|
|
|
case FB_FMT_RGB16_565: /* BPP=16 R=6, G=6, B=5 */
|
|
info->filefmt = &g_rgbinfo; /* RGB file image file info */
|
|
info->imgflags = IMGFLAGS_FMT_RGB16_565; /* Bit encoded image characteristics */
|
|
info->bps = 3 * info->pps; /* Bytes per strip */
|
|
break;
|
|
|
|
case FB_FMT_RGB24: /* BPP=24 R=8, G=8, B=8 */
|
|
info->filefmt = &g_rgbinfo; /* RGB file image file info */
|
|
info->imgflags = IMGFLAGS_FMT_RGB24; /* Bit encoded image characteristics */
|
|
info->bps = 3 *info->pps; /* Bytes per strip */
|
|
break;
|
|
|
|
default:
|
|
gdbg("Unsupported color format: %d\n", info->colorfmt);
|
|
return -EINVAL;
|
|
}
|
|
|
|
/* Write the TIFF header data to the outfile:
|
|
*
|
|
* Header: 0 Byte Order "II" or "MM"
|
|
* 2 Magic Number 42
|
|
* 4 1st IFD offset 10
|
|
* 8 [2 bytes padding]
|
|
*/
|
|
|
|
ret = tiff_putheader(info);
|
|
if (ret < 0)
|
|
{
|
|
goto errout;
|
|
}
|
|
tiff_offset(offset, TIFF_IFD_OFFSET);
|
|
|
|
/* Write the Number of directory entries
|
|
*
|
|
* All formats: Offset 10 Number of Directory Entries 12
|
|
*/
|
|
|
|
ret = tiff_putint16(info->outfd, info->filefmt->nifdentries);
|
|
if (ret < 0)
|
|
{
|
|
goto errout;
|
|
}
|
|
tiff_offset(offset, 2);
|
|
|
|
/* Write the NewSubfileType IFD entry
|
|
*
|
|
* All formats: Offset 12 NewSubfileType
|
|
*/
|
|
|
|
ret = tiff_putifdentry16(info, IFD_TAG_NEWSUBFILETYPE, IFD_FIELD_LONG, 1, 0);
|
|
if (ret < 0)
|
|
{
|
|
goto errout;
|
|
}
|
|
tiff_offset(offset, SIZEOF_IFD_ENTRY);
|
|
|
|
/* Write ImageWidth and ImageLength
|
|
*
|
|
* All formats: Offset 24 ImageWidth Number of columns is a user parameter
|
|
* 36 ImageLength Number of rows is a user parameter
|
|
*/
|
|
|
|
ret = tiff_putifdentry16(info, IFD_TAG_IMAGEWIDTH, IFD_FIELD_SHORT, 1, info->imgwidth);
|
|
if (ret == OK)
|
|
{
|
|
ret= tiff_putifdentry16(info, IFD_TAG_IMAGELENGTH, IFD_FIELD_SHORT, 1, info->imgheight);
|
|
}
|
|
|
|
if (ret < 0)
|
|
{
|
|
goto errout;
|
|
}
|
|
tiff_offset(offset, 2*SIZEOF_IFD_ENTRY);
|
|
|
|
/* Write BitsPerSample
|
|
*
|
|
* Bi-level Images: None
|
|
* Greyscale: Offset 48 BitsPerSample (4 or 8)
|
|
* RGB: Offset 48 BitsPerSample (8,8,8)
|
|
*/
|
|
|
|
tiff_checkoffs(offset, 48);
|
|
if (IMGFLAGS_ISGREY(info->imgflags))
|
|
{
|
|
if (IMGFLAGS_ISGREY8(info->imgflags))
|
|
{
|
|
val16 = 8;
|
|
}
|
|
else
|
|
{
|
|
val16 = 4;
|
|
}
|
|
|
|
ret = tiff_putifdentry16(info, IFD_TAG_BITSPERSAMPLE, IFD_FIELD_SHORT, 1, val16);
|
|
if (ret < 0)
|
|
{
|
|
goto errout;
|
|
}
|
|
tiff_offset(offset, SIZEOF_IFD_ENTRY);
|
|
}
|
|
else if (IMGFLAGS_ISRGB(info->imgflags))
|
|
{
|
|
ret = tiff_putifdentry(info, IFD_TAG_BITSPERSAMPLE, IFD_FIELD_SHORT, 3, TIFF_RGB_BPSOFFSET);
|
|
if (ret < 0)
|
|
{
|
|
goto errout;
|
|
}
|
|
tiff_offset(offset, SIZEOF_IFD_ENTRY);
|
|
}
|
|
|
|
/* Write Compression:
|
|
*
|
|
* Bi-level Images: Offset 48 Hard-coded no compression (for now)
|
|
* Greyscale: Offset 60 " " " " "" " " " " " "
|
|
* RGB: Offset 60 " " " " "" " " " " " "
|
|
*/
|
|
|
|
ret = tiff_putifdentry16(info, IFD_TAG_COMPRESSION, IFD_FIELD_SHORT, 1, TAG_COMP_NONE);
|
|
if (ret < 0)
|
|
{
|
|
goto errout;
|
|
}
|
|
tiff_offset(offset, SIZEOF_IFD_ENTRY);
|
|
|
|
/* Write PhotometricInterpretation:
|
|
*
|
|
* Bi-level Images: Offset 48 Hard-coded BlackIsZero
|
|
* Greyscale: Offset 72 Hard-coded BlackIsZero
|
|
* RGB: Offset 72 Hard-coded RGB
|
|
*/
|
|
|
|
if (IMGFLAGS_ISRGB(info->imgflags))
|
|
{
|
|
val16 = TAG_PMI_RGB;
|
|
}
|
|
else
|
|
{
|
|
val16 = TAG_PMI_BLACK;
|
|
}
|
|
|
|
ret = tiff_putifdentry16(info, IFD_TAG_PMI, IFD_FIELD_SHORT, 1, val16);
|
|
if (ret < 0)
|
|
{
|
|
goto errout;
|
|
}
|
|
tiff_offset(offset, SIZEOF_IFD_ENTRY);
|
|
|
|
/* Write StripOffsets:
|
|
*
|
|
* Bi-level Images: Offset 72 Value determined by switch statement above
|
|
* Greyscale: Offset 84 Value determined by switch statement above
|
|
* RGB: Offset 84 Value determined by switch statement above
|
|
*/
|
|
|
|
tiff_checkoffs(offset, info->filefmt->soifdoffset);
|
|
ret = tiff_putifdentry(info, IFD_TAG_STRIPOFFSETS, IFD_FIELD_LONG, 0, 0);
|
|
if (ret < 0)
|
|
{
|
|
goto errout;
|
|
}
|
|
tiff_offset(offset, SIZEOF_IFD_ENTRY);
|
|
|
|
/* Write SamplesPerPixel
|
|
*
|
|
* Bi-level Images: N/A
|
|
* Greyscale: N/A
|
|
* RGB: Offset 96 Hard-coded to 3
|
|
*/
|
|
|
|
if (IMGFLAGS_ISRGB(info->imgflags))
|
|
{
|
|
ret = tiff_putifdentry16(info, IFD_TAG_SAMPLESPERPIXEL, IFD_FIELD_SHORT, 1, 3);
|
|
if (ret < 0)
|
|
{
|
|
goto errout;
|
|
}
|
|
tiff_offset(offset, SIZEOF_IFD_ENTRY);
|
|
}
|
|
|
|
/* Write RowsPerStrip:
|
|
*
|
|
* Bi-level Images: Offset 84 Value is a user parameter
|
|
* Greyscale: Offset 96 Value is a user parameter
|
|
* RGB: Offset 108 Value is a user parameter
|
|
*/
|
|
|
|
ret = tiff_putifdentry16(info, IFD_TAG_ROWSPERSTRIP, IFD_FIELD_SHORT, 1, info->rps);
|
|
if (ret < 0)
|
|
{
|
|
goto errout;
|
|
}
|
|
tiff_offset(offset, SIZEOF_IFD_ENTRY);
|
|
|
|
/* Write StripByteCounts:
|
|
*
|
|
* Bi-level Images: Offset 96 Count determined as strips added, Value offset = 216
|
|
* Greyscale: Offset 108 Count determined as strips added, Value offset = 228
|
|
* RGB: Offset 120 Count determined as strips added, Value offset = 248
|
|
*/
|
|
|
|
tiff_checkoffs(offset, info->filefmt->sbcifdoffset);
|
|
ret = tiff_putifdentry(info, IFD_TAG_STRIPCOUNTS, IFD_FIELD_LONG, 0, info->filefmt->sbcoffset);
|
|
if (ret < 0)
|
|
{
|
|
goto errout;
|
|
}
|
|
tiff_offset(offset, SIZEOF_IFD_ENTRY);
|
|
|
|
/* Write XResolution and YResolution:
|
|
*
|
|
* Bi-level Images: Offset 108 and 120, Values are a user parameters
|
|
* Greyscale: Offset 120 and 132, Values are a user parameters
|
|
* RGB: Offset 132 and 144, Values are a user parameters
|
|
*/
|
|
|
|
ret = tiff_putifdentry(info, IFD_TAG_XRESOLUTION, IFD_FIELD_RATIONAL, 1, info->filefmt->xresoffset);
|
|
if (ret == OK)
|
|
{
|
|
ret = tiff_putifdentry(info, IFD_TAG_YRESOLUTION, IFD_FIELD_RATIONAL, 1, info->filefmt->yresoffset);
|
|
}
|
|
|
|
if (ret < 0)
|
|
{
|
|
goto errout;
|
|
}
|
|
tiff_offset(offset, 2*SIZEOF_IFD_ENTRY);
|
|
|
|
/* Write ResolutionUnit:
|
|
*
|
|
* Bi-level Images: Offset 132, Hard-coded to "inches"
|
|
* Greyscale: Offset 144, Hard-coded to "inches"
|
|
* RGB: Offset 156, Hard-coded to "inches"
|
|
*/
|
|
|
|
ret = tiff_putifdentry16(info, IFD_TAG_RESUNIT, IFD_FIELD_SHORT, 1, TAG_RESUNIT_INCH);
|
|
if (ret < 0)
|
|
{
|
|
goto errout;
|
|
}
|
|
tiff_offset(offset, SIZEOF_IFD_ENTRY);
|
|
|
|
/* Write Software:
|
|
*
|
|
* Bi-level Images: Offset 144 Count, Hard-coded "NuttX"
|
|
* Greyscale: Offset 156 Count, Hard-coded "NuttX"
|
|
* RGB: Offset 168 Count, Hard-coded "NuttX"
|
|
*/
|
|
|
|
ret = tiff_putifdentry(info, IFD_TAG_SOFTWARE, IFD_FIELD_ASCII, TIFF_SOFTWARE_STRLEN, info->filefmt->swoffset);
|
|
if (ret < 0)
|
|
{
|
|
goto errout;
|
|
}
|
|
tiff_offset(offset, SIZEOF_IFD_ENTRY);
|
|
|
|
/* Write DateTime:
|
|
*
|
|
* Bi-level Images: Offset 156 Count, Format "YYYY:MM:DD HH:MM:SS"
|
|
* Greyscale: Offset 168 Count, Format "YYYY:MM:DD HH:MM:SS"
|
|
* RGB: Offset 180 Count, Format "YYYY:MM:DD HH:MM:SS"
|
|
*/
|
|
|
|
ret = tiff_putifdentry(info, IFD_TAG_DATETIME, IFD_FIELD_ASCII, TIFF_DATETIME_STRLEN, info->filefmt->dateoffset);
|
|
if (ret < 0)
|
|
{
|
|
goto errout;
|
|
}
|
|
tiff_offset(offset, SIZEOF_IFD_ENTRY);
|
|
|
|
/* Write Next IFD Offset and 2 bytes of padding:
|
|
*
|
|
* Bi-level Images: Offset 168, Next IFD offset
|
|
* Offset 170, [2 bytes padding]
|
|
* Greyscale: Offset 180, Next IFD offset
|
|
* Offset 182, [2 bytes padding]
|
|
* RGB: Offset 192, Next IFD offset
|
|
* Offset 194, [2 bytes padding]
|
|
*/
|
|
|
|
ret = tiff_putint32(info->outfd, 0);
|
|
if (ret < 0)
|
|
{
|
|
goto errout;
|
|
}
|
|
tiff_offset(offset, 4);
|
|
|
|
/* Now we begin the value section of the file */
|
|
|
|
tiff_checkoffs(offset, info->filefmt->valoffset);
|
|
|
|
/* Write the XResolution and YResolution data:
|
|
*
|
|
* Bi-level Images: Offset 172 Count, Hard-coded to 300/1
|
|
* Offset 180 Count, Hard-coded to 300/1
|
|
* Greyscale: Offset 184 Count, Hard-coded to 300/1
|
|
* Offset 192 Count, Hard-coded to 300/1
|
|
* RGB: Offset 196 Count, Hard-coded to 300/1
|
|
* Offset 204 Count, Hard-coded to 300/1
|
|
*/
|
|
|
|
tiff_checkoffs(offset, info->filefmt->xresoffset);
|
|
ret = tiff_putint32(info->outfd, 300);
|
|
if (ret == OK)
|
|
{
|
|
ret = tiff_putint32(info->outfd, 1);
|
|
}
|
|
|
|
if (ret < 0)
|
|
{
|
|
goto errout;
|
|
}
|
|
tiff_offset(offset, 8);
|
|
|
|
tiff_checkoffs(offset, info->filefmt->yresoffset);
|
|
ret = tiff_putint32(info->outfd, 300);
|
|
if (ret == OK)
|
|
{
|
|
ret = tiff_putint32(info->outfd, 1);
|
|
}
|
|
|
|
if (ret < 0)
|
|
{
|
|
goto errout;
|
|
}
|
|
tiff_offset(offset, 8);
|
|
|
|
/* Write RGB BitsPerSample Data:
|
|
*
|
|
* Bi-level Images: N/A
|
|
* Greyscale: N/A
|
|
* RGB: Offset 212 BitsPerSample (8,8,8)
|
|
* Offset 218 [2 bytes padding]
|
|
*/
|
|
|
|
if (IMGFLAGS_ISRGB(info->imgflags))
|
|
{
|
|
tiff_checkoffs(offset, TIFF_RGB_BPSOFFSET);
|
|
tiff_putint16(info->outfd, 8);
|
|
tiff_putint16(info->outfd, 8);
|
|
tiff_putint16(info->outfd, 8);
|
|
tiff_putint16(info->outfd, 0);
|
|
tiff_offset(offset, 8);
|
|
}
|
|
|
|
/* Write the Software string:
|
|
*
|
|
*
|
|
* Bi-level Images: Offset 188, Hard-coded "NuttX"
|
|
* Greyscale: Offset 200, Hard-coded "NuttX"
|
|
* RGB: Offset 220, Hard-coded "NuttX"
|
|
*/
|
|
|
|
tiff_checkoffs(offset, info->filefmt->swoffset);
|
|
ret = tiff_putstring(info->outfd, TIFF_SOFTWARE_STRING, TIFF_SOFTWARE_STRLEN);
|
|
if (ret < 0)
|
|
{
|
|
goto errout;
|
|
}
|
|
tiff_offset(offset, TIFF_SOFTWARE_STRLEN);
|
|
|
|
/* Write the DateTime string:
|
|
*
|
|
*
|
|
* Bi-level Images: Offset 188, Format "YYYY:MM:DD HH:MM:SSS"
|
|
* Greyscale: Offset 200, Hard-coded "NuttX"
|
|
* RGB: Offset 220, Hard-coded "NuttX"
|
|
*/
|
|
|
|
tiff_checkoffs(offset, info->filefmt->dateoffset);
|
|
ret = tiff_datetime(timbuf, TIFF_DATETIME_STRLEN + 8);
|
|
if (ret < 0)
|
|
{
|
|
goto errout;
|
|
}
|
|
|
|
ret = tiff_putstring(info->outfd, timbuf, TIFF_DATETIME_STRLEN);
|
|
if (ret < 0)
|
|
{
|
|
goto errout;
|
|
}
|
|
tiff_offset(offset, TIFF_DATETIME_STRLEN);
|
|
|
|
/* Add two bytes of padding */
|
|
|
|
ret = tiff_putint16(info->outfd, 0);
|
|
if (ret < 0)
|
|
{
|
|
goto errout;
|
|
}
|
|
tiff_offset(offset, 2);
|
|
|
|
/* And that should do it! */
|
|
|
|
tiff_checkoffs(offset, info->filefmt->sbcoffset);
|
|
info->outsize = info->filefmt->sbcoffset;
|
|
return OK;
|
|
|
|
errout:
|
|
tiff_abort(info);
|
|
return ret;
|
|
}
|
|
|