diff options
Diffstat (limited to 'gs/base/gdevtifs.h')
| -rw-r--r-- | gs/base/gdevtifs.h | 219 |
1 files changed, 20 insertions, 199 deletions
diff --git a/gs/base/gdevtifs.h b/gs/base/gdevtifs.h index 595209238..4deacbd3e 100644 --- a/gs/base/gdevtifs.h +++ b/gs/base/gdevtifs.h @@ -17,220 +17,41 @@ #ifndef gdevtifs_INCLUDED # define gdevtifs_INCLUDED -/* ================ TIFF specification ================ */ - -/* Based on TIFF specification version 6.0 obtained from */ -/* sgi.com:graphics/tiff/TIFF6.ps.Z. */ - -/* - * The sizes of TIFF data types are system-independent. Therefore, - * we cannot use short, long, etc., but must use types of known sizes. - */ -#if arch_sizeof_short == 2 -typedef short TIFF_short; /* no plausible alternative */ -typedef unsigned short TIFF_ushort; - -#endif -#if arch_sizeof_int == 4 -typedef int TIFF_long; -typedef unsigned int TIFF_ulong; - -#else -# if arch_sizeof_long == 4 -typedef long TIFF_long; -typedef unsigned long TIFF_ulong; - -# endif -#endif - -#define SWAP_SHORT(x)\ - x = x << 8 | x >> 8\ - -/* - * Define the TIFF file header. - */ -typedef struct TIFF_header_s { - TIFF_ushort magic; /* magic number (defines byte order) */ - TIFF_ushort version; /* TIFF version number */ - TIFF_ulong diroff; /* byte offset to first directory */ -} TIFF_header; - -#define TIFF_magic_big_endian 0x4d4d /* 'MM' */ -#define TIFF_magic_little_endian 0x4949 /* 'II' */ - -#define TIFF_version_value 42 - -/* - * Define an individual entry in a TIFF directory. Within a directory, - * the entries must be sorted by increasing tag value. - * - * The value field contains either the offset of the field data in the file, - * or, if the value fits in 32 bits, the value itself, left-justified. - * Field data may appear anywhere in the file, so long as each data block is - * aligned on a 32-bit boundary and is disjoint from all other data blocks. - */ -typedef struct TIFF_dir_entry_s { - TIFF_ushort tag; /* TIFF_tag */ - TIFF_ushort type; /* TIFF_data_type */ - TIFF_ulong count; /* number of items (spec calls this 'length') */ - TIFF_ulong value; /* byte offset to field data, */ - /* or actual value if <=4 bytes */ -} TIFF_dir_entry; - -/* - * Define the tag data type values. - */ -typedef enum { - TIFF_BYTE = 1, /* 8-bit unsigned integer */ - TIFF_ASCII = 2, /* 8-bit bytes with last byte null */ - TIFF_SHORT = 3, /* 16-bit unsigned integer */ - TIFF_LONG = 4, /* 32-bit unsigned integer */ - TIFF_RATIONAL = 5, /* 64-bit unsigned fraction */ - /* (ratio of two 32-bit unsigned integers) */ - TIFF_SBYTE = 6, /* 8-bit signed integer */ - TIFF_UNDEFINED = 7, /* 8-bit untyped data */ - TIFF_SSHORT = 8, /* 16-bit signed integer */ - TIFF_SLONG = 9, /* 32-bit signed integer */ - TIFF_SRATIONAL = 10, /* 64-bit signed fraction */ - /* (ratio of two 32-bit signed integers) */ - TIFF_FLOAT = 11, /* 32-bit IEEE floating point */ - TIFF_DOUBLE = 12, /* 64-bit IEEE floating point */ - /* A flag to indicate the value is indirect. */ - /* This is only used internally; it is not part of the */ - /* TIFF specification (although it should be!). */ - TIFF_INDIRECT = 128 -} TIFF_data_type; - -/* - * Define the tag values we need. Note that this is only a very small subset - * of all the values defined in the TIFF specification; we will add more - * as the need arises. - */ -typedef enum { - TIFFTAG_SubFileType = 254, /* subfile data descriptor */ -#define SubFileType_reduced_image 0x1 /* reduced resolution version */ -#define SubFileType_page 0x2 /* one page of many */ -#define SubFileType_mask 0x4 /* transparency mask */ - TIFFTAG_ImageWidth = 256, /* image width in pixels */ - TIFFTAG_ImageLength = 257, /* image height in pixels */ - TIFFTAG_BitsPerSample = 258, /* bits per channel (sample) */ - TIFFTAG_Compression = 259, /* data compression technique */ -#define Compression_none 1 /* dump mode */ -#define Compression_CCITT_RLE 2 /* CCITT modified Huffman RLE */ -#define Compression_CCITT_T4 3 /* CCITT T.4 fax encoding */ -#define Compression_CCITT_T6 4 /* CCITT T.6 fax encoding */ -#define Compression_LZW 5 /* Lempel-Ziv & Welch */ -#define Compression_JPEG 6 /* !JPEG compression */ -#define Compression_NeXT 32766 /* NeXT 2-bit RLE */ -#define Compression_CCITT_RLEW 32771 /* #1 w/ word alignment */ -#define Compression_PackBits 32773 /* Macintosh RLE */ -#define Compression_Thunderscan 32809 /* ThunderScan RLE */ - TIFFTAG_Photometric = 262, /* photometric interpretation */ -#define Photometric_min_is_white 0 /* min value is white */ -#define Photometric_min_is_black 1 /* min value is black */ -#define Photometric_RGB 2 /* RGB color model */ -#define Photometric_palette 3 /* color map indexed */ -#define Photometric_mask 4 /* $holdout mask */ -#define Photometric_separated 5 /* !color separations */ -#define Photometric_YCbCr 6 /* !CCIR 601 */ -#define Photometric_CIE_Lab 8 /* !1976 CIE L*a*b* */ - TIFFTAG_FillOrder = 266, /* data order within a byte */ -#define FillOrder_MSB2LSB 1 /* most significant -> least */ -#define FillOrder_LSB2MSB 2 /* least significant -> most */ - TIFFTAG_StripOffsets = 273, /* offsets to data strips */ - TIFFTAG_Orientation = 274, /* +image Orientation */ -#define Orientation_top_left 1 /* row 0 top, col 0 lhs */ -#define Orientation_top_right 2 /* row 0 top, col 0 rhs */ -#define Orientation_bot_right 3 /* row 0 bottom, col 0 rhs */ -#define Orientation_bot_left 4 /* row 0 bottom, col 0 lhs */ -#define Orientation_left_top 5 /* row 0 lhs, col 0 top */ -#define Orientation_right_top 6 /* row 0 rhs, col 0 top */ -#define Orientation_right_bot 7 /* row 0 rhs, col 0 bottom */ -#define Orientation_left_bot 8 /* row 0 lhs, col 0 bottom */ - TIFFTAG_SamplesPerPixel = 277, /* samples per pixel */ - TIFFTAG_RowsPerStrip = 278, /* rows per strip of data */ - TIFFTAG_StripByteCounts = 279, /* bytes counts for strips */ - TIFFTAG_XResolution = 282, /* pixels/resolution in x */ - TIFFTAG_YResolution = 283, /* pixels/resolution in y */ - TIFFTAG_PlanarConfig = 284, /* storage organization */ -#define PlanarConfig_contig 1 /* single image plane */ -#define PlanarConfig_separate 2 /* separate planes of data */ - TIFFTAG_T4Options = 292, /* 32 flag bits */ -#define T4Options_2D_encoding 0x1 /* 2-dimensional coding */ -#define T4Options_uncompressed 0x2 /* data not compressed */ -#define T4Options_fill_bits 0x4 /* fill to byte boundary */ - TIFFTAG_T6Options = 293, /* 32 flag bits */ -#define T6Options_uncompressed 0x2 /* data not compressed */ - TIFFTAG_ResolutionUnit = 296, /* units of resolutions */ -#define ResolutionUnit_none 1 /* no meaningful units */ -#define ResolutionUnit_inch 2 /* english */ -#define ResolutionUnit_centimeter 3 /* metric */ - TIFFTAG_PageNumber = 297, /* page number if multi-page */ - TIFFTAG_Software = 305, /* software name & release */ - TIFFTAG_DateTime = 306, /* creation date and time */ - /* - * The CleanFaxData tag isn't in the TIFF 6 documentation, and many - * TIFF-reading applications don't recognize it. Don't use it! - */ - TIFFTAG_CleanFaxData = 327 /* regenerated line info */ -#define CleanFaxData_clean 0 /* no errors detected */ -#define CleanFaxData_regenerated 1 /* receiver regenerated lines */ -#define CleanFaxData_unclean 2 /* uncorrected errors exist */ -} TIFF_tag; +#include <tiffio.h> /* must be first, because gdevio.h re-#defines "printf" + which is used in a function __attribute__ by + tiffio.h */ +#include "gdevprn.h" /* ================ Implementation ================ */ -/* - * Define the added driver state for TIFF writing. Note that we provide - * no GC descriptor, so this structure must exist only on the stack, - * never in allocated storage. - */ -typedef struct gdev_tiff_state_s { - gs_memory_t *mem; - long prev_dir; /* file offset of previous directory offset */ - long dir_off; /* file offset of next write */ - int ntags; /* # of tags in directory */ - long strip_index; /* current strip being output, 0 = first */ - long strip_count; - long rows; - /* Record offsets of values - these may be indirect if more than one strip */ - int offset_StripOffsets; - int offset_StripByteCounts; - TIFF_ulong *StripOffsets; - TIFF_ulong *StripByteCounts; -} gdev_tiff_state; - typedef struct gx_device_tiff_s { gx_device_common; gx_prn_device_common; bool BigEndian; /* true = big endian; false = little endian*/ - gdev_tiff_state tiff; + + TIFF *tif; /* TIFF file opened on gx_device_common.file */ } gx_device_tiff; +dev_proc_output_page(tiff_output_page); +dev_proc_open_device(tiff_open); +dev_proc_close_device(tiff_close); dev_proc_get_params(tiff_get_params); dev_proc_put_params(tiff_put_params); /* - * Begin writing a TIFF page. This procedure supplies a standard set of - * tags; the client can provide additional tags (pre-sorted) and - * indirect values. + * Open a TIFF file for writing from a file descriptor. */ -int gdev_tiff_begin_page(gx_device_printer * pdev, gdev_tiff_state * tifs, - FILE * fp, - const TIFF_dir_entry * entries, int entry_count, - const byte * values, int value_size, - long max_strip_size, bool swap_bytes); +TIFF * tiff_from_filep(const char *name, FILE *filep, int big_endian); -/* - * Finish writing a TIFF strip. All data written since begin or last - * end_strip is considered to be a single strip. - */ -int gdev_tiff_end_strip(gdev_tiff_state * tifs, FILE * fp); +int tiff_print_page(gx_device_printer *dev, TIFF *tif); + +int tiff_set_fields_for_printer(gx_device_printer *pdev, + TIFF *tif, + long max_strip_size); + +int gdev_tiff_begin_page(gx_device_tiff *tfdev, + FILE *file, + long max_strip_size); -/* - * Finish writing a TIFF page. StripOffsets and StripByteCounts are - * patched into the file. - */ -int gdev_tiff_end_page(gdev_tiff_state * tifs, FILE * fp, bool swap_bytes); #endif /* gdevtifs_INCLUDED */ |