| /**************************************************************************** |
| * apps/include/graphics/tiff.h |
| * |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. The |
| * ASF licenses this file to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance with the |
| * License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT |
| * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the |
| * License for the specific language governing permissions and limitations |
| * under the License. |
| * |
| ****************************************************************************/ |
| |
| /* Reference: |
| * "TIFF, Revision 6.0, Final," June 3, 1992, Adobe Developers Association. |
| */ |
| |
| #ifndef __APPS_INCLUDE_GRAPHICS_TIFF_H |
| #define __APPS_INCLUDE_GRAPHICS_TIFF_H |
| |
| /**************************************************************************** |
| * Included Files |
| ****************************************************************************/ |
| |
| #include <nuttx/config.h> |
| #include <sys/types.h> |
| #include <nuttx/nx/nxglib.h> |
| |
| /**************************************************************************** |
| * Pre-processor Definitions |
| ****************************************************************************/ |
| |
| /* Configuration ************************************************************/ |
| |
| /* TIFF File Format Definitions *********************************************/ |
| |
| /* Values for the IFD field type */ |
| |
| #define IFD_FIELD_BYTE 1 /* 8-bit unsigned integer */ |
| #define IFD_FIELD_ASCII 2 /* 8-bit byte that contains a 7-bit ASCII code. |
| * The last byte must be NUL */ |
| #define IFD_FIELD_SHORT 3 /* 16-bit (2-byte) unsigned integer */ |
| #define IFD_FIELD_LONG 4 /* 32-bit (4-byte) unsigned integer */ |
| #define IFD_FIELD_RATIONAL 5 /* Two LONGs: the first represents the |
| * numerator of a fraction, the second the |
| * denominator */ |
| #define IFD_FIELD_SBYTE 6 /* An 8-bit signed (twos-complement) integer */ |
| #define IFD_FIELD_UNDEFINED 7 /* An 8-bit byte that may contain anything, |
| * depending on the definition of the field */ |
| #define IFD_FIELD_SSHORT 8 /* A 16-bit (2-byte) signed (twos-complement) |
| * integer */ |
| #define IFD_FIELD_SLONG 9 /* A 32-bit (4-byte) signed (twos-complement) |
| * integer */ |
| #define IFD_FIELD_SRATIONAL 10 /* Two SLONG's: the first represents the |
| * numerator of a fraction, the second the |
| * denominator */ |
| #define IFD_FIELD_FLOAT 11 /* Single precision (4-byte) IEEE format */ |
| #define IFD_FIELD_DOUBLE 12 /* Double precision (8-byte) IEEE format */ |
| |
| /* Values for the IFD tag type */ |
| |
| #define IFD_TAG_NEWSUBFILETYPE 254 /* NewSubfileType, LONG */ |
| # define TAG_NEWSUBFILETYPE_REDUCED (1 << 0) /* Bit 0: Reduced resolution version of image */ |
| # define TAG_NEWSUBFILETYPE_SINGLE (1 << 1) /* Bit 1: Single page of a multi-page image */ |
| # define TAG_NEWSUBFILETYPE_TRANSP (1 << 2) /* Bit 2: Defines a transparency mask for image */ |
| |
| #define IFD_TAG_SUBFILETYPE 255 /* SubfileType, SHORT */ |
| # define TAG_SUBFILETYPE_FULL 1 /* Full-resolution image data */ |
| # define TAG_SUBFILETYPE_REDUCED 2 /* Reduced-resolution image data */ |
| # define TAG_SUBFILETYPE_SINGLE 3 /* Single page of a multi-page image */ |
| #define IFD_TAG_IMAGEWIDTH 256 /* ImageLength, SHORT or LONG (Required) */ |
| #define IFD_TAG_IMAGELENGTH 257 /* ImageWidth, SHORT or LONG (Required) */ |
| #define IFD_TAG_BITSPERSAMPLE 258 /* BitsPerSample, SHORT (Required |
| * in greyscale and palette-color image files) */ |
| #define IFD_TAG_COMPRESSION 259 /* Compression, SHORT (Required) */ |
| # define TAG_COMP_NONE 1 /* No compression */ |
| # define TAG_COMP_CCITT 2 /* CCITT Group 3 1-Dimensional Modified Huffman |
| * run length encoding */ |
| # define TAG_COMP_T4 3 /* CCITT T.4 bi-level encoding */ |
| # define TAG_COMP_T6 4 /* CCITT T.6 bi-level encoding */ |
| # define TAG_COMP_LZW 5 /* LZW */ |
| # define TAG_COMP_JPEG 6 /* LZW */ |
| # define TAG_COMP_PACKBITS 32773 /* PackBits compression */ |
| #define IFD_TAG_PMI 262 /* PhotometricInterpretation, SHORT (Required) */ |
| # define TAG_PMI_WHITE 0 /* WhiteIsZero */ |
| # define TAG_PMI_BLACK 1 /* BlackIsZero */ |
| # define TAG_PMI_RGB 2 /* RGB */ |
| # define TAG_PMI_PALETTE 3 /* Palette color */ |
| # define TAG_PMI_TRANSP 4 /* Transparency mask */ |
| # define TAG_PMI_CMYK 5 /* CMYK */ |
| # define TAG_PMI_YCbCr 6 /* YCbCr */ |
| # define TAG_PMI_CIELAB 8 /* 1976 CIE L*a*b* */ |
| #define IFD_TAG_THRESHHOLDING 263 /* Threshholding, SHORT */ |
| # define TAG_THRESHHOLD_NONE 1 /* No dithering or halftoning has been applied */ |
| # define TAG_THRESHHOLD_ORDERED 2 /* Ordered dither or halftone technique has been applied */ |
| # define TAG_THRESHHOLD_RANDOM 3 /* Randomized process has been applied */ |
| #define IFD_TAG_CELLWIDTH 264 /* CellWidth, SHORT */ |
| #define IFD_TAG_CELLLENGTH 265 /* CellLength, SHORT */ |
| #define IFD_TAG_FILLORDER 266 /* FillOrder, SHORT */ |
| # define TAG_FILLORDER_HIGH 1 /* Lower column values are stored in the |
| * higher-order bits */ |
| # define TAG_FILLORDER_LOW 2 /* Lower column values are stored in the |
| * lower-order bits */ |
| #define IFD_TAG_DOCUMENTNAME 269 /* DocumentName, ASCII */ |
| #define IFD_TAG_IMAGEDESCRIPTION 270 /* ImageDescription, ASCII */ |
| #define IFD_TAG_MAKE 271 /* Make, ASCII */ |
| #define IFD_TAG_MODEL 272 /* Model, ASCII */ |
| #define IFD_TAG_STRIPOFFSETS 273 /* StripOffsets, SHORT or LONG (Required) */ |
| #define IFD_TAG_ORIENTATION 274 /* Orientation, SHORT */ |
| # define TAG_ORIENTATION_TL 1 /* (0,0)=top left */ |
| # define TAG_ORIENTATION_TR 2 /* (0,0)=top right */ |
| # define TAG_ORIENTATION_BR 3 /* (0,0)=bottom right */ |
| # define TAG_ORIENTATION_BL 4 /* (0,0)=bottom left */ |
| # define TAG_ORIENTATION_LT 5 /* (0,0)=left top */ |
| # define TAG_ORIENTATION_RT 6 /* (0,0)=right top */ |
| # define TAG_ORIENTATION_RB 7 /* (0,0)=right bottom */ |
| # define TAG_ORIENTATION_LB 8 /* (0,0)=left bottom */ |
| #define IFD_TAG_SAMPLESPERPIXEL 277 /* SamplesPerPixel, SHORT (Required in |
| * RGB full color files) */ |
| #define IFD_TAG_ROWSPERSTRIP 278 /* RowsPerStrip, SHORT or LONG (Required) */ |
| #define IFD_TAG_STRIPCOUNTS 279 /* StripByteCounts, SHORT or LONG (Required) */ |
| #define IFD_TAG_MINSAMPLEVALUE 280 /* MinSampleValue, SHORT */ |
| #define IFD_TAG_MAXSAMPLEVALUE 281 /* MaxSampleValue, SHORT */ |
| #define IFD_TAG_XRESOLUTION 282 /* XResolution, RATIONAL (Required) */ |
| #define IFD_TAG_YRESOLUTION 283 /* YResolution, RATIONAL (Required) */ |
| #define IFD_TAG_PLANARCONFIG 284 /* PlanarConfiguration, SHORT */ |
| # define TAG_PLCONFIG_CHUNKY 1 /* Chunky format */ |
| # define TAG_PLCONFIG_PLANAR 2 /* Planar format */ |
| #define IFD_TAG_PAGENAME 285 /* PageName, ASCII */ |
| #define IFD_TAG_XPOSITION 286 /* XPosition, RATIONAL */ |
| #define IFD_TAG_YPOSITION 287 /* YPosition, RATIONAL */ |
| #define IFD_TAG_FREEOFFSETS 288 /* FreeOffsets, LONG */ |
| #define IFD_TAG_FREEBYTECOUNTS 289 /* FreeByteCounts, LONG */ |
| #define IFD_TAG_GRAYRESPONSEUNIT 290 /* GrayResponseUnit, SHORT */ |
| # define TAG_GRAYRESPUNIT_10THS 1 /* Number represents tenths of a unit */ |
| # define TAG_GRAYRESPUNIT_100THS 2 /* Number represents hundredths of a unit */ |
| # define TAG_GRAYRESPUNIT_1KTHS 3 /* Number represents thousandths of a unit */ |
| # define TAG_GRAYRESPUNIT_10KTHS 4 /* Number represents ten-thousandths of a unit */ |
| # define TAG_GRAYRESPUNIT_100KTHS 5 /* Number represents hundred-thousandths of a unit */ |
| #define IFD_TAG_GRAYRESPONSECURVE 291 /* GrayResponseCurve, SHORT */ |
| #define IFD_TAG_T4OPTIONS 292 /* T4Options, LONG */ |
| # define TAG_T4OPTIONS_2D (1 << 0) /* 2-dimensional coding */ |
| # define TAG_T4OPTIONS_NONE (1 << 1) /* Uncompressed mode */ |
| # define TAG_T4OPTIONS_FILL (1 << 2) /* Fill bits have been added */ |
| #define IFD_TAG_T6OPTIONS 293 /* T6Options, LONG */ |
| # define TAG_T6OPTIONS_NONE (1 << 1) /* Uncompressed mode allowed */ |
| #define IFD_TAG_RESUNIT 296 /* ResolutionUnit, SHORT (Required) */ |
| # define TAG_RESUNIT_NONE 1 /* No absolute unit of measurement */ |
| # define TAG_RESUNIT_INCH 2 /* Inch (default) */ |
| # define TAG_RESUNIT_CENTIMETER 3 /* Centimeter */ |
| #define IFD_TAG_PAGENUMBER 297 /* PageNumber, SHORT */ |
| #define IFD_TAG_TRANSFERFUNCTION 301 /* TransferFunction, SHORT */ |
| #define IFD_TAG_SOFTWARE 305 /* Software, ASCII */ |
| #define IFD_TAG_DATETIME 306 /* DateTime, ASCII */ |
| #define IFD_TAG_ARTIST 315 /* Artist, ASCII */ |
| #define IFD_TAG_HOSTCOMPUTER 316 /* HostComputer, ASCII */ |
| #define IFD_TAG_PREDICTOR 317 /* Predictor SHORT */ |
| # define TAG_PREDICTOR_NONE 1 /* No prediction scheme used before coding */ |
| # define TAG_PREDICTOR_HORIZ 2 /* Horizontal differencing */ |
| #define IFD_TAG_WHITEPOINT 318 /* WhitePoint, RATIONAL */ |
| #define IFD_TAG_PRIMARYCHROMA 319 /* PrimaryChromaticities, RATIONAL */ |
| #define IFD_TAG_COLORMAP 320 /* ColorMap, SHORT (Required in palette |
| * color image files) */ |
| #define IFD_TAG_HALFTONEHINTS 321 /* HalftoneHints, SHORT */ |
| #define IFD_TAG_TILEWIDTH 322 /* TileWidth, SHORT or LONG */ |
| #define IFD_TAG_TILELENGTH 323 /* TileLength, SHORT or LONG */ |
| #define IFD_TAG_TILEOFFSETS 324 /* TileOffsets, LONG */ |
| #define IFD_TAG_TILEBYTECOUNTS 325 /* TileByteCounts, SHORT or LONG */ |
| #define IFD_TAG_INKSET 332 /* InkSet, SHORT */ |
| # define TAG_INKSET_CMYK 1 /* CMYK */ |
| # define TAG_INKSET_OTHER 2 /* Not CMYK */ |
| #define IFD_TAG_INKNAMES 333 /* InkNames, ASCII */ |
| #define IFD_TAG_NUMBEROFINKS 334 /* NumberOfInks, SHORT */ |
| #define IFD_TAG_DOTRANGE 336 /* DotRange, BYTE or SHORT */ |
| #define IFD_TAG_TARGETPRINTER 337 /* TargetPrinter, ASCII */ |
| #define IFD_TAG_EXTRASAMPLES 338 /* ExtraSamples, SHORT */ |
| # define TAG_EXTSAMP_UNSPEC 0 /* Unspecified */ |
| # define TAG_EXTSAMP_ASSOCALPHA 1 /* Associated alpha data */ |
| # define TAG_EXTSAMP_UNASSALPHA 2 /* Unassociated alpha data */ |
| #define IFD_TAG_SAMPLEFORMAT 339 /* SampleFormat, SHORT */ |
| # define TAG_SAMPLEFMT_UNSIGED 1 /* Unsigned integer data */ |
| # define TAG_SAMPLEFMT_SIGNED 2 /* Two's complement signed integer data */ |
| # define TAG_SAMPLEFMT_FLOAT 3 /* IEEE floating point data */ |
| # define TAG_SAMPLEFMT_UNDEFINED 4 /* Undefined data format */ |
| #define IFD_TAG_SMINSAMPLEVALUE 340 /* SMinSampleValue, type matches sample data */ |
| #define IFD_TAG_SMAXSAMPLEVALUE 341 /* SMaxSampleValue, type matches sample data */ |
| #define IFD_TAG_TRANSFERRANGE 342 /* TransferRange, SHORT */ |
| #define IFD_TAG_JPEGPROC 512 /* JPEGProc, SHORT */ |
| #define IFD_TAG_JPEGFMT 513 /* JPEGInterchangeFormat, LONG */ |
| #define IFD_TAG_JPEGLENGTH 514 /* JPEGInterchangeFormatLength, LONG */ |
| #define IFD_TAG_JPEGRESTART 515 /* JPEGRestartInterval, SHORT */ |
| #define IFD_TAG_JPEGLLPREDICTORS 517 /* JPEGLosslessPredictors, SHORT */ |
| #define IFD_TAG_JPEGPOINTXFORMS 518 /* JPEGPointTransforms, SHORT */ |
| #define IFD_TAG_JPEGQTABLES 519 /* JPEGQTables, LONG */ |
| #define IFD_TAG_JPEGDCTABLES 520 /* JPEGDCTables, LONG */ |
| #define IFD_TAG_JPEGACTABLES 521 /* JPEGACTables, LONG */ |
| #define IFD_TAG_YCbCrCOEFFS 529 /* YCbCrCoefficients, RATIONAL */ |
| #define IFD_TAG_YCbCrSUBSAMPLING 530 /* YCbCrSubSampling, SHORT */ |
| #define IFD_TAG_YCbCrPOSITIONING 531 /* YCbCrPositioning, SHORT */ |
| #define IFD_TAG_REFERENCEBW 532 /* ReferenceBlackWhite, RATIONAL */ |
| #define IFD_TAG_COPYRIGHT 33432 /* Copyright, ASCII */ |
| |
| /**************************************************************************** |
| * Public Types |
| ****************************************************************************/ |
| |
| /* TIFF File Format Structure ***********************************************/ |
| |
| /* "A TIFF file begins with an 8-byte image file header that points to an |
| * image file directory (IFD). An image file directory contains information |
| * about the image, as well as pointers to the actual image data." |
| */ |
| |
| struct tiff_header_s |
| { |
| uint8_t order[2]; /* 0-1: Byte order: "II"=little endian, "MM"=big endian */ |
| uint8_t magic[2]; /* 2-3: 42 in appropriate byte order */ |
| uint8_t offset[4]; /* 4-7: Offset to the first IFD */ |
| }; |
| #define SIZEOF_TIFF_HEADER 8 |
| |
| /* "An Image File Directory (IFD) consists of a 2-byte count of the number |
| * of directory entries (i.e., the number of fields), followed by a sequence |
| * of 12-byte field entries, followed by a 4-byte offset of the next IFD (or |
| * 0 if none). |
| * |
| * Each 12-byte IFD entry has the following format: |
| */ |
| |
| struct tiff_ifdentry_s |
| { |
| uint8_t tag[2]; /* 0-1: The Tag that identifies the field */ |
| uint8_t type[2]; /* 2-3 The field Type */ |
| uint8_t count[4]; /* 4-7: The number of values of the indicated type */ |
| uint8_t offset[4]; /* 8-11: The Value Offset (or the value itself) */ |
| }; |
| #define SIZEOF_IFD_ENTRY 12 |
| |
| /****************************************************************************/ |
| |
| /* Structures needed to interface with the TIFF file creation library) and |
| * also structures used only internally by the TIFF file creation library). |
| */ |
| |
| /* This structure describes on strip in tmpfile2 */ |
| |
| struct tiff_strip_s |
| { |
| uint32_t offset; /* Offset to the strip data in tmpfile1 */ |
| uint32_t count; /* Count of pixels in the strip */ |
| }; |
| |
| /* This structure is used only internally by the TIFF file creation library |
| * to manage file offsets. |
| */ |
| |
| struct tiff_filefmt_s |
| { |
| uint16_t nifdentries; /* Number of IFD entries */ |
| uint16_t soifdoffset; /* Offset to StripOffset IFD entry */ |
| uint16_t sbcifdoffset; /* Offset to StripByteCount IFD entry */ |
| uint16_t valoffset; /* Offset to first values */ |
| uint16_t xresoffset; /* Offset to XResolution values */ |
| uint16_t yresoffset; /* Offset to yResolution values */ |
| uint16_t swoffset; /* Offset to Software string */ |
| uint16_t dateoffset; /* Offset to DateTime string */ |
| uint16_t sbcoffset; /* Offset to StripByteCount values */ |
| }; |
| |
| /* These type is used to hold information about the TIFF file under |
| * construction |
| */ |
| |
| struct tiff_info_s |
| { |
| /* The first fields are used to pass information to the TIFF file creation |
| * logic via tiff_initialize(). |
| * |
| * Filenames. Three file names are required. (1) path to the final |
| * output file and (2) two paths to temporary files. One temporary file |
| * (tmpfile1) will be used to hold the strip image data and the other |
| * (tmpfile2) will be used to hold strip offset and count information. |
| * |
| * colorfmt - Specifies the form of the color data that will be provided |
| * in the strip data. These are the FB_FMT_* definitions |
| * provided in include/nuttx/video/fb.h. Only the following |
| * values are supported: |
| * |
| * FB_FMT_Y1 BPP=1, monochrome, 0=black |
| * FB_FMT_Y4 BPP=4, 4-bit greyscale, 0=black |
| * FB_FMT_Y8 BPP=8, 8-bit greyscale, 0=black |
| * FB_FMT_RGB16_565 BPP=16 R=6, G=6, B=5 |
| * FB_FMT_RGB24 BPP=24 R=8, G=8, B=8 |
| * |
| * rps - TIFF RowsPerStrip |
| * imgwidth - TIFF ImageWidth, Number of columns in the image |
| * imgheight - TIFF ImageLength, Number of rows in the image |
| */ |
| |
| FAR const char *outfile; /* Full path to the final output file name */ |
| FAR const char *tmpfile1; /* Full path to first temporary file */ |
| FAR const char *tmpfile2; /* Full path to second temporary file */ |
| |
| uint8_t colorfmt; /* See FB_FMT_* definitions in include/nuttx/video/fb.h */ |
| nxgl_coord_t rps; /* TIFF RowsPerStrip */ |
| nxgl_coord_t imgwidth; /* TIFF ImageWidth, Number of columns in the image */ |
| nxgl_coord_t imgheight; /* TIFF ImageLength, Number of rows in the image */ |
| |
| /* The caller must provide an I/O buffer as well. This I/O buffer will |
| * used for color conversions and as the intermediate buffer for copying |
| * files. The larger the buffer, the better the performance. |
| */ |
| |
| FAR uint8_t *iobuffer; /* IO buffer allocated by the caller */ |
| unsigned int iosize; /* The size of the I/O buffer in bytes */ |
| |
| /* The second set of fields are used only internally by the TIFF file |
| * creation logic. These fields must be set to zero initially by the |
| * caller of tiff_initialize(). User logic should not depend upon any |
| * definitions in the following -- they are subject to change without |
| * notice. They are only exposed here so that the caller can allocate |
| * memory for their storage. |
| */ |
| |
| uint8_t imgflags; /* Bit-encoded image flags */ |
| nxgl_coord_t nstrips; /* Number of strips in tmpfile3 */ |
| size_t pps; /* Pixels per strip */ |
| size_t bps; /* Bytes per strip */ |
| int outfd; /* outfile file descriptor */ |
| int tmp1fd; /* tmpfile1 file descriptor */ |
| int tmp2fd; /* tmpfile2 file descriptor */ |
| off_t outsize; /* Current size of outfile */ |
| off_t tmp1size; /* Current size of tmpfile1 */ |
| off_t tmp2size; /* Current size of tmpfile2 */ |
| |
| /* Points to an internal constant structure of file offsets */ |
| |
| FAR const struct tiff_filefmt_s *filefmt; |
| }; |
| |
| /**************************************************************************** |
| * Public Function Prototypes |
| ****************************************************************************/ |
| |
| #ifdef __cplusplus |
| #define EXTERN extern "C" |
| extern "C" |
| { |
| #else |
| #define EXTERN extern |
| #endif |
| |
| /**************************************************************************** |
| * Name: tiff_initialize |
| * |
| * Description: |
| * Setup to create a new TIFF file. The overall steps to creating a |
| * TIFF file are as follows: |
| * |
| * 1) Create an initialize a struct tiff_info_s instance |
| * 2) Call tiff_initialize() to setup the file creation |
| * 3) Call tiff_addstrip() repeatedly to add strips to the graphic image |
| * 4) Call tiff_finalize() to complete the file creation. |
| * |
| * 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); |
| |
| /**************************************************************************** |
| * Name: tiff_addstrip |
| * |
| * Description: |
| * Add an image data strip. The size of the strip in pixels |
| * must be equal to the RowsPerStrip x ImageWidth values |
| * that were provided to tiff_initialize(). |
| * |
| * Input Parameters: |
| * info - A pointer to the caller allocated parameter passing/TIFF state |
| * instance. |
| * buffer - A buffer containing a single row of data. |
| * |
| * Returned Value: |
| * Zero (OK) on success. A negated errno value on failure. |
| * |
| ****************************************************************************/ |
| |
| int tiff_addstrip(FAR struct tiff_info_s *info, FAR const uint8_t *strip); |
| |
| /**************************************************************************** |
| * Name: tiff_finalize |
| * |
| * Description: |
| * Finalize the TIFF output file, completing the TIFF file creation steps. |
| * |
| * 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_finalize(FAR struct tiff_info_s *info); |
| |
| /**************************************************************************** |
| * Name: tiff_abort |
| * |
| * Description: |
| * Abort the TIFF file creation and create-up resources. |
| * |
| * Input Parameters: |
| * info - A pointer to the caller allocated parameter passing/TIFF state |
| * instance. |
| * |
| * Returned Value: |
| * None |
| * |
| ****************************************************************************/ |
| |
| void tiff_abort(FAR struct tiff_info_s *info); |
| |
| /**************************************************************************** |
| * Name: tiff_put/get16/32 |
| * |
| * Description: |
| * Put and get 16 and 32 values in the correct byte order at the specified |
| * position. |
| * |
| * Input Parameters: |
| * dest - The location to store the multi-byte data (put only) |
| * src - The location to get the multi-byte data (get only) |
| * |
| * Returned Value: |
| * None (put) |
| * The extracted value (get) |
| * |
| ****************************************************************************/ |
| |
| void tiff_put16(FAR uint8_t *dest, uint16_t value); |
| void tiff_put32(FAR uint8_t *dest, uint32_t value); |
| uint16_t tiff_get16(FAR uint8_t *dest); |
| uint32_t tiff_get32(FAR uint8_t *dest); |
| |
| #undef EXTERN |
| #ifdef __cplusplus |
| } |
| #endif |
| |
| #endif /* __APPS_INCLUDE_GRAPHICS_TIFF_H */ |
