mirror of
https://github.com/apache/nuttx-apps.git
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de0d05b44f
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@3965 42af7a65-404d-4744-a932-0658087f49c3
501 lines
17 KiB
C
501 lines
17 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 <unistd.h>
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#include <fcntl.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 12
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* 12 NewSubfileType
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* 24 ImageWidth Number of columns is a user parmeter
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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 at run time
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* 84 RowsPerStrip Value is a user parameter
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* 96 StripByteCounts Offset and count determined at run time
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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 1
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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 nnnn 1, nnnn is user supplied
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* 180 YResolution nnnn 1, nnnn is user supplied
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* 188 "NuttX" Length = 6 (includeing 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 StripOffsets Beginning of strip offsets
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* xxx StripByteCounts Beginning of strip byte counts
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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 12
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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_STRIPOFFSET 216
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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 13
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* 12 NewSubfileType
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* 24 ImageWidth Number of columns is a user parmeter
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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 at run time
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* 96 RowsPerStrip Value is a user parameter
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* 108 StripByteCounts Offset and count determined at run time
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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 1
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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 nnnn 1, nnnn is user supplied
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* 192 YResolution nnnn 1, nnnn is user supplied
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* 200 "NuttX" Length = 6 (includeing 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 StripOffsets Beginning of strip offsets
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* xxx StripByteCounts Beginning of strip byte counts
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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 13
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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_STRIPOFFSET 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 14
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* 12 NewSubfileType
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* 24 ImageWidth Number of columns is a user parmeter
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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 at run time
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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 at run time
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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 1
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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 nnnn 1, nnnn is user supplied
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* 204 YResolution nnnn 1, nnnn is user supplied
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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 (includeing 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 StripOffsets Beginning of strip offsets
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* xxx StripByteCounts Beginning of strip byte counts
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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 13
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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_STRIPOFFSET 248
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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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/****************************************************************************
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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_putint16
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*
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* Description:
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* Write two bytes to the 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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*
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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_putint16(FAR struct tiff_info_s *info, uint16_t value)
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{
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uint8_t bytes[2];
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/* Write the two bytes to the output file */
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tiff_put16(bytes, value);
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return tiff_write(info->outfd, bytes, 2);
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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_put16(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, 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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* Variouis IFD entry writing routines
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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 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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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_*
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*
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* Description:
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* Variouis IFD entry writing routines
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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 int tiff_newsubfiletype(FAR struct tiff_info_s *info)
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{
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return tiff_putifdentry16(info, IFD_TAG_NEWSUBFILETYPE, IFD_FIELD_LONG, 1, 0);
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}
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static int tiff_imagewidth(FAR struct tiff_info_s *info)
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{
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return tiff_putifdentry16(info, IFD_TAG_IMAGEWIDTH, IFD_FIELD_SHORT, 1, info->imgwidth);
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}
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static int tiff_imagelength(FAR struct tiff_info_s *info)
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{
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return tiff_putifdentry16(info, IFD_TAG_IMAGELENGTH, IFD_FIELD_SHORT, 1, info->imgheight);
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}
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static int tiff_greybitspersample(FAR struct tiff_info_s *info)
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{
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return tiff_putifdentry16(info, IFD_TAG_BITSPERSAMPLE, IFD_FIELD_SHORT, 1, info->bps);
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}
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static int tiff_rgbbitspersample(FAR struct tiff_info_s *info)
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{
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return tiff_putifdentry(info, IFD_TAG_BITSPERSAMPLE, IFD_FIELD_SHORT, 3, TIFF_RGB_BPSOFFSET);
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}
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static int tiff_compression(FAR struct tiff_info_s *info)
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{
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return tiff_putifdentry16(info, IFD_TAG_COMPRESSION, IFD_FIELD_SHORT, 1, TAG_COMP_NONE);
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}
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static int tiff_photointerp(FAR struct tiff_info_s *info)
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{
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return tiff_putifdentry16(info, IFD_TAG_PMI, IFD_FIELD_SHORT, 1, info->pmi);
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}
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static int tiff_stripoffsets(FAR struct tiff_info_s *info, uint32_t count, uint32_t offset)
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{
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return tiff_putifdentry(info, IFD_TAG_STRIPOFFSETS, IFD_FIELD_LONG, count, offset);
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}
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static int tiff_samplesperpixel(FAR struct tiff_info_s *info)
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{
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return tiff_putifdentry16(info, IFD_TAG_SAMPLESPERPIXEL, IFD_FIELD_SHORT, 1, 3);
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}
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static int tiff_rowsperstrip(FAR struct tiff_info_s *info)
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{
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return tiff_putifdentry16(info, IFD_TAG_ROWSPERSTRIP, IFD_FIELD_SHORT, 1, info->rps);
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}
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static int tiff_stripbytecounts(FAR struct tiff_info_s *info, uint32_t count, uint32_t offset)
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{
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return tiff_putifdentry(info, IFD_TAG_STRIPCOUNTS, IFD_FIELD_LONG, count, offset);
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}
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static int tiff_xresolution(FAR struct tiff_info_s *info)
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{
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# warning "Missing logic"
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return -ENOSYS;
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}
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static int tiff_yresolution(FAR struct tiff_info_s *info)
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{
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# warning "Missing logic"
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return -ENOSYS;
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}
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static int tiff_resolutionunit(FAR struct tiff_info_s *info)
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{
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# warning "Missing logic"
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return -ENOSYS;
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}
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static int tiff_software(FAR struct tiff_info_s *info)
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{
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# warning "Missing logic"
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return -ENOSYS;
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}
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static int tiff_datetime(FAR struct tiff_info_s *info)
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{
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# warning "Missing logic"
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return -ENOSYS;
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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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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_WRONLY|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 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_WRONLY|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 writing: %d\n", info->tmpfile1, errno);
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goto errout_with_outfd;
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}
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info->tmp2fd = open(info->tmpfile1, O_WRONLY|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 writing: %d\n", info->tmpfile1, errno);
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goto errout_with_tmp1fd;
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}
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/* Write the TIFF header data to the outfile */
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ret = tiff_putheader(info);
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if (ret < 0)
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{
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goto errout_with_tmp2fd;
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}
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/* Write the IFD data to the outfile */
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#warning "Missing Logic"
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return OK;
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errout_with_tmp2fd:
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(void)close(info->tmp2fd);
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info->tmp2fd = -1;
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errout_with_tmp1fd:
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(void)close(info->tmp1fd);
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info->tmp1fd = -1;
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errout_with_outfd:
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(void)close(info->outfd);
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info->outfd = -1;
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errout:
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return ret;
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}
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