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Diffstat (limited to 'source/luametatex/source/libraries/pplib/ppapi.h')
| -rw-r--r-- | source/luametatex/source/libraries/pplib/ppapi.h | 404 |
1 files changed, 404 insertions, 0 deletions
diff --git a/source/luametatex/source/libraries/pplib/ppapi.h b/source/luametatex/source/libraries/pplib/ppapi.h new file mode 100644 index 000000000..e9ced5718 --- /dev/null +++ b/source/luametatex/source/libraries/pplib/ppapi.h @@ -0,0 +1,404 @@ + +#ifndef PP_API_H +#define PP_API_H + +#include <stdint.h> +#include <stddef.h> +#include <string.h> + +#include "ppconf.h" + +#define pplib_version "v2.1" +#define pplib_author "p.jackowski@gust.org.pl" + +/* types */ + +typedef int64_t ppint; +typedef size_t ppuint; // machine word + +typedef char ppbyte; + +typedef double ppnum; + +typedef struct ppname ppname; +typedef struct ppstring ppstring; + +struct ppname { + ppbyte *data; + size_t size; + ppname *alterego; + int flags; +}; + +struct ppstring { + ppbyte *data; + size_t size; + ppstring *alterego; + int flags; +}; + +typedef struct ppobj ppobj; +typedef struct ppref ppref; + +typedef struct { + ppobj *data; + size_t size; +} pparray; + +typedef struct { + ppobj *data; + ppname **keys; + size_t size; +} ppdict; + +typedef enum { + PPSTREAM_BASE16 = 0, + PPSTREAM_BASE85, + PPSTREAM_RUNLENGTH, + PPSTREAM_FLATE, + PPSTREAM_LZW, + PPSTREAM_CCITT, + PPSTREAM_DCT, + PPSTREAM_JBIG2, + PPSTREAM_JPX, + PPSTREAM_CRYPT +} ppstreamtp; + +typedef struct { + ppstreamtp *filters; + ppdict **params; + size_t count; +} ppstream_filter; + +typedef struct { + ppdict *dict; + void *input, *I; + size_t offset; + size_t length; + ppstream_filter filter; + ppobj *filespec; + ppstring *cryptkey; + int flags; +} ppstream; + +PPDEF extern const char * ppstream_filter_name[]; +PPAPI int ppstream_filter_type (ppname *filtername, ppstreamtp *filtertype); +PPAPI void ppstream_filter_info (ppstream *stream, ppstream_filter *info, int decode); + +#define PPSTREAM_FILTER (1<<0) +#define PPSTREAM_IMAGE (1<<1) +#define PPSTREAM_ENCRYPTED_AES (1<<2) +#define PPSTREAM_ENCRYPTED_RC4 (1<<3) +#define PPSTREAM_ENCRYPTED (PPSTREAM_ENCRYPTED_AES|PPSTREAM_ENCRYPTED_RC4) +#define PPSTREAM_ENCRYPTED_OWN (1<<4) +#define PPSTREAM_NOT_SUPPORTED (1<<6) + +#define ppstream_compressed(stream) ((stream)->flags & (PPSTREAM_FILTER|PPSTREAM_IMAGE)) +#define ppstream_filtered(stream) ((stream)->flags & PPSTREAM_FILTER) +#define ppstream_image(stream) ((stream)->flags & PPSTREAM_IMAGE) +#define ppstream_encrypted(stream) ((stream)->flags & PPSTREAM_ENCRYPTED) + +typedef enum { + PPNONE = 0, + PPNULL, + PPBOOL, + PPINT, + PPNUM, + PPNAME, + PPSTRING, + PPARRAY, + PPDICT, + PPSTREAM, + PPREF +} ppobjtp; + +PPDEF extern const char * ppobj_kind[]; + +struct ppobj { + union { + ppint integer; + ppnum number; + ppname *name; + ppstring *string; + pparray *array; + ppdict *dict; + ppstream *stream; + ppref *ref; + void *any; + }; + ppobjtp type; +}; + +typedef struct ppxref ppxref; + +struct ppref { + ppobj object; + ppuint number, version; + size_t offset; + size_t length; + ppxref *xref; +}; + +typedef struct ppdoc ppdoc; + +/* object */ + +#define ppobj_get_null(o) ((o)->type == PPNULL ? 1 : 0) +#define ppobj_get_bool(o, v) ((o)->type == PPBOOL ? ((v = ((o)->integer != 0)), 1) : 0) +#define ppobj_get_int(o, v) ((o)->type == PPINT ? ((v = (o)->integer), 1) : 0) +#define ppobj_get_uint(o, v) ((o)->type == PPINT && (o)->integer >= 0 ? ((v = (ppuint)((o)->integer)), 1) : 0) +#define ppobj_get_num(o, v) ((o)->type == PPNUM ? ((v = (o)->number), 1) : (((o)->type == PPINT ? ((v = (ppnum)((o)->integer)), 1) : 0))) +#define ppobj_get_name(o) ((o)->type == PPNAME ? (o)->name : NULL) +#define ppobj_get_string(o) ((o)->type == PPSTRING ? (o)->string : NULL) +#define ppobj_get_array(o) ((o)->type == PPARRAY ? (o)->array : NULL) +#define ppobj_get_dict(o) ((o)->type == PPDICT ? (o)->dict : NULL) +#define ppobj_get_stream(o) ((o)->type == PPSTREAM ? (o)->stream : NULL) +#define ppobj_get_ref(o) ((o)->type == PPREF ? (o)->ref : NULL) + +#define ppobj_rget_obj(o) ((o)->type == PPREF ? ppref_obj((o)->ref) : o) +#define ppobj_rget_null(o) ((o)->type == PPNULL ? 1 : ((o)->type == PPREF ? ppobj_get_null(ppref_obj((o)->ref)) : 0)) +#define ppobj_rget_bool(o, v) ((o)->type == PPBOOL ? ((v = ((o)->integer != 0)), 1) : ((o)->type == PPREF ? ppobj_get_bool(ppref_obj((o)->ref), v) : 0)) +#define ppobj_rget_int(o, v) ((o)->type == PPINT ? ((v = (o)->integer), 1) : ((o)->type == PPREF ? ppobj_get_int(ppref_obj((o)->ref), v) : 0)) +#define ppobj_rget_uint(o, v) ((o)->type == PPINT && (o)->integer >= 0 ? ((v = (ppuint)((o)->integer)), 1) : ((o)->type == PPREF ? ppobj_get_uint(ppref_obj((o)->ref), v) : 0)) +#define ppobj_rget_num(o, v) ((o)->type == PPNUM ? ((v = (o)->number), 1) : (((o)->type == PPINT ? ((v = (ppnum)((o)->integer)), 1) : ((o)->type == PPREF ? ppobj_get_num(ppref_obj((o)->ref), v) : 0)))) +#define ppobj_rget_name(o) ((o)->type == PPNAME ? (o)->name : ((o)->type == PPREF ? ppobj_get_name(ppref_obj((o)->ref)) : NULL)) +#define ppobj_rget_string(o) ((o)->type == PPSTRING ? (o)->string : ((o)->type == PPREF ? ppobj_get_string(ppref_obj((o)->ref)) : NULL)) +#define ppobj_rget_array(o) ((o)->type == PPARRAY ? (o)->array : ((o)->type == PPREF ? ppobj_get_array(ppref_obj((o)->ref)) : NULL)) +#define ppobj_rget_dict(o) ((o)->type == PPDICT ? (o)->dict : ((o)->type == PPREF ? ppobj_get_dict(ppref_obj((o)->ref)) : NULL)) +#define ppobj_rget_stream(o) ((o)->type == PPSTREAM ? (o)->stream : ((o)->type == PPREF ? ppobj_get_stream(ppref_obj((o)->ref)) : NULL)) +#define ppobj_rget_ref(o) ((o)->type == PPREF ? (o)->ref : ((o)->type == PPREF ? ppobj_get_ref(ppref_obj((o)->ref)) : NULL)) + +#define ppobj_get_bool_value(o) ((o)->type == PPBOOL ? ((o)->integer != 0) : 0) +#define ppobj_get_int_value(o) ((o)->type == PPINT ? (o)->integer : 0) +#define ppobj_get_num_value(o) ((o)->type == PPNUM ? (o)->number : ((o)->type == PPINT ? (ppnum)((o)->integer) : 0.0)) + +/* name */ + +#define ppname_is(name, s) (memcmp((name)->data, s, sizeof("" s) - 1) == 0) +#define ppname_eq(name, n) (memcmp((name)->data, s, (name)->size) == 0) + +#define ppname_size(name) ((name)->size) +#define ppname_exec(name) ((name)->flags & PPNAME_EXEC) +#define ppname_data(name) ((name)->data) + +#define PPNAME_ENCODED (1 << 0) +#define PPNAME_DECODED (1 << 1) +#define PPNAME_EXEC (1 << 1) + +PPAPI ppname * ppname_decoded (ppname *name); +PPAPI ppname * ppname_encoded (ppname *name); + +PPAPI ppbyte * ppname_decoded_data (ppname *name); +PPAPI ppbyte * ppname_encoded_data (ppname *name); + +/* string */ + +#define ppstring_size(string) ((string)->size) +#define ppstring_data(string) ((string)->data) + +#define PPSTRING_ENCODED (1 << 0) +#define PPSTRING_DECODED (1 << 1) +//#define PPSTRING_EXEC (1 << 2) // postscript only +#define PPSTRING_PLAIN 0 +#define PPSTRING_BASE16 (1 << 3) +#define PPSTRING_BASE85 (1 << 4) +#define PPSTRING_UTF16BE (1 << 5) +#define PPSTRING_UTF16LE (1 << 6) + +#define ppstring_type(string) ((string)->flags & (PPSTRING_BASE16|PPSTRING_BASE85)) +#define ppstring_hex(string) ((string)->flags & PPSTRING_BASE16) +#define ppstring_utf(string) ((string)->flags & (PPSTRING_UTF16BE|PPSTRING_UTF16LE)) + +PPAPI ppstring * ppstring_decoded (ppstring *string); +PPAPI ppstring * ppstring_encoded (ppstring *string); + +PPAPI ppbyte * ppstring_decoded_data (ppstring *string); +PPAPI ppbyte * ppstring_encoded_data (ppstring *string); + +/* array */ + +#define pparray_size(array) ((array)->size) +#define pparray_at(array, index) ((array)->data + index) + +#define pparray_first(array, index, obj) ((index) = 0, (obj) = pparray_at(array, 0)) +#define pparray_next(index, obj) (++(index), ++(obj)) + +#define pparray_get(array, index) (index < (array)->size ? pparray_at(array, index) : NULL) + +PPAPI ppobj * pparray_get_obj (pparray *array, size_t index); +PPAPI int pparray_get_bool (pparray *array, size_t index, int *v); +PPAPI int pparray_get_int (pparray *array, size_t index, ppint *v); +PPAPI int pparray_get_uint (pparray *array, size_t index, ppuint *v); +PPAPI int pparray_get_num (pparray *array, size_t index, ppnum *v); +PPAPI ppname * pparray_get_name (pparray *array, size_t index); +PPAPI ppstring * pparray_get_string (pparray *array, size_t index); +PPAPI pparray * pparray_get_array (pparray *array, size_t index); +PPAPI ppdict * pparray_get_dict (pparray *array, size_t index); +//PPAPI ppstream * pparray_get_stream (pparray *array, size_t index); +PPAPI ppref * pparray_get_ref (pparray *array, size_t index); + +PPAPI ppobj * pparray_rget_obj (pparray *array, size_t index); +PPAPI int pparray_rget_bool (pparray *array, size_t index, int *v); +PPAPI int pparray_rget_int (pparray *array, size_t index, ppint *v); +PPAPI int pparray_rget_uint (pparray *array, size_t index, ppuint *v); +PPAPI int pparray_rget_num (pparray *array, size_t index, ppnum *v); +PPAPI ppname * pparray_rget_name (pparray *array, size_t index); +PPAPI ppstring * pparray_rget_string (pparray *array, size_t index); +PPAPI pparray * pparray_rget_array (pparray *array, size_t index); +PPAPI ppdict * pparray_rget_dict (pparray *array, size_t index); +PPAPI ppstream * pparray_rget_stream (pparray *array, size_t index); +PPAPI ppref * pparray_rget_ref (pparray *array, size_t index); + +/* dict */ + +#define ppdict_size(dict) ((dict)->size) +#define ppdict_at(dict, index) ((dict)->data + index) +#define ppdict_key(dict, index) ((dict)->keys[index]) + +PPAPI ppobj * ppdict_get_obj (ppdict *dict, const char *name); +PPAPI int ppdict_get_bool (ppdict *dict, const char *name, int *v); +PPAPI int ppdict_get_int (ppdict *dict, const char *name, ppint *v); +PPAPI int ppdict_get_uint (ppdict *dict, const char *name, ppuint *v); +PPAPI int ppdict_get_num (ppdict *dict, const char *name, ppnum *v); +PPAPI ppname * ppdict_get_name (ppdict *dict, const char *name); +PPAPI ppstring * ppdict_get_string (ppdict *dict, const char *name); +PPAPI pparray * ppdict_get_array (ppdict *dict, const char *name); +PPAPI ppdict * ppdict_get_dict (ppdict *dict, const char *name); +//PPAPI ppstream * ppdict_get_stream (ppdict *dict, const char *name); +PPAPI ppref * ppdict_get_ref (ppdict *dict, const char *name); + +PPAPI ppobj * ppdict_rget_obj (ppdict *dict, const char *name); +PPAPI int ppdict_rget_bool (ppdict *dict, const char *name, int *v); +PPAPI int ppdict_rget_int (ppdict *dict, const char *name, ppint *v); +PPAPI int ppdict_rget_uint (ppdict *dict, const char *name, ppuint *v); +PPAPI int ppdict_rget_num (ppdict *dict, const char *name, ppnum *v); +PPAPI ppname * ppdict_rget_name (ppdict *dict, const char *name); +PPAPI ppstring * ppdict_rget_string (ppdict *dict, const char *name); +PPAPI pparray * ppdict_rget_array (ppdict *dict, const char *name); +PPAPI ppdict * ppdict_rget_dict (ppdict *dict, const char *name); +PPAPI ppstream * ppdict_rget_stream (ppdict *dict, const char *name); +PPAPI ppref * ppdict_rget_ref (ppdict *dict, const char *name); + +#define ppdict_first(dict, pkey, obj) (pkey = (dict)->keys, obj = (dict)->data) +#define ppdict_next(pkey, obj) (++(pkey), ++(obj)) + +/* stream */ + +#define ppstream_dict(stream) ((stream)->dict) + +PPAPI uint8_t * ppstream_first (ppstream *stream, size_t *size, int decode); +PPAPI uint8_t * ppstream_next (ppstream *stream, size_t *size); +PPAPI uint8_t * ppstream_all (ppstream *stream, size_t *size, int decode); +PPAPI void ppstream_done (ppstream *stream); + +PPAPI void ppstream_init_buffers (void); +PPAPI void ppstream_free_buffers (void); + +/* ref */ + +#define ppref_obj(ref) (&(ref)->object) + +/* xref */ + +PPAPI ppxref * ppdoc_xref (ppdoc *pdf); +PPAPI ppxref * ppxref_prev (ppxref *xref); +PPAPI ppdict * ppxref_trailer (ppxref *xref); +PPAPI ppdict * ppxref_catalog (ppxref *xref); +PPAPI ppdict * ppxref_info (ppxref *xref); +PPAPI ppref * ppxref_pages (ppxref *xref); +PPAPI ppref * ppxref_find (ppxref *xref, ppuint refnumber); + +/* doc */ + +PPAPI ppdoc * ppdoc_load (const char *filename); +PPAPI ppdoc * ppdoc_filehandle (FILE *file, int closefile); +#define ppdoc_file(file) ppdoc_filehandle(file, 1) +PPAPI ppdoc * ppdoc_mem (const void *data, size_t size); +PPAPI void ppdoc_free (ppdoc *pdf); + +#define ppdoc_trailer(pdf) ppxref_trailer(ppdoc_xref(pdf)) +#define ppdoc_catalog(pdf) ppxref_catalog(ppdoc_xref(pdf)) +#define ppdoc_info(pdf) ppxref_info(ppdoc_xref(pdf)) +#define ppdoc_pages(pdf) ppxref_pages(ppdoc_xref(pdf)) + +PPAPI ppuint ppdoc_page_count (ppdoc *pdf); +PPAPI ppref * ppdoc_page (ppdoc *pdf, ppuint index); +PPAPI ppref * ppdoc_first_page (ppdoc *pdf); +PPAPI ppref * ppdoc_next_page (ppdoc *pdf); + +PPAPI ppstream * ppcontents_first (ppdict *dict); +PPAPI ppstream * ppcontents_next (ppdict *dict, ppstream *stream); + +/* crypt */ + +typedef enum { + PPCRYPT_NONE = 0, + PPCRYPT_DONE = 1, + PPCRYPT_FAIL = -1, + PPCRYPT_PASS = -2 +} ppcrypt_status; + +PPAPI ppcrypt_status ppdoc_crypt_status (ppdoc *pdf); +PPAPI ppcrypt_status ppdoc_crypt_pass (ppdoc *pdf, const void *userpass, size_t userpasslength, const void *ownerpass, size_t ownerpasslength); + +/* permission flags, effect in Acrobat File -> Properties -> Security tab */ + +PPAPI ppint ppdoc_permissions (ppdoc *pdf); + +#define PPDOC_ALLOW_PRINT (1<<2) // printing +#define PPDOC_ALLOW_MODIFY (1<<3) // filling form fields, signing, creating template pages +#define PPDOC_ALLOW_COPY (1<<4) // copying, copying for accessibility +#define PPDOC_ALLOW_ANNOTS (1<<5) // filling form fields, copying, signing +#define PPDOC_ALLOW_EXTRACT (1<<9) // contents copying for accessibility +#define PPDOC_ALLOW_ASSEMBLY (1<<10) // (no effect) +#define PPDOC_ALLOW_PRINT_HIRES (1<<11) // (no effect) + +/* context */ + +typedef struct ppcontext ppcontext; + +PPAPI ppcontext * ppcontext_new (void); +PPAPI void ppcontext_done (ppcontext *context); +PPAPI void ppcontext_free (ppcontext *context); + +/* contents parser */ + +PPAPI ppobj * ppcontents_first_op (ppcontext *context, ppstream *stream, size_t *psize, ppname **pname); +PPAPI ppobj * ppcontents_next_op (ppcontext *context, ppstream *stream, size_t *psize, ppname **pname); +PPAPI ppobj * ppcontents_parse (ppcontext *context, ppstream *stream, size_t *psize); + +/* boxes and transforms */ + +typedef struct { + ppnum lx, ly, rx, ry; +} pprect; + +PPAPI pprect * pparray_to_rect (pparray *array, pprect *rect); +PPAPI pprect * ppdict_get_rect (ppdict *dict, const char *name, pprect *rect); +PPAPI pprect * ppdict_get_box (ppdict *dict, const char *name, pprect *rect); + +typedef struct { + ppnum xx, xy, yx, yy, x, y; +} ppmatrix; + +PPAPI ppmatrix * pparray_to_matrix (pparray *array, ppmatrix *matrix); +PPAPI ppmatrix * ppdict_get_matrix (ppdict *dict, const char *name, ppmatrix *matrix); + +/* logger */ + +typedef void (*pplogger_callback) (const char *message, void *alien); +PPAPI void pplog_callback (pplogger_callback logger, void *alien); +PPAPI int pplog_prefix (const char *prefix); + +/* version */ + +PPAPI const char * ppdoc_version_string (ppdoc *pdf); +PPAPI int ppdoc_version_number (ppdoc *pdf, int *minor); + +/* doc info */ + +PPAPI size_t ppdoc_file_size (ppdoc *pdf); +PPAPI ppuint ppdoc_objects (ppdoc *pdf); +PPAPI size_t ppdoc_memory (ppdoc *pdf, size_t *waste); + +#endif |