/************************************************************************************ * 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 #include #include /************************************************************************************ * 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 */