blob: 8d158d6004b2cdecaa5fbe8dc81b03fa385d1606 [file] [log] [blame]
/*
* Copyright © 2008 Chris Wilson <chris@chris-wilson.co.uk>
*
* This library is free software; you can redistribute it and/or
* modify it either under the terms of the GNU Lesser General Public
* License version 2.1 as published by the Free Software Foundation
* (the "LGPL") or, at your option, under the terms of the Mozilla
* Public License Version 1.1 (the "MPL"). If you do not alter this
* notice, a recipient may use your version of this file under either
* the MPL or the LGPL.
*
* You should have received a copy of the LGPL along with this library
* in the file COPYING-LGPL-2.1; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA
* You should have received a copy of the MPL along with this library
* in the file COPYING-MPL-1.1
*
* The contents of this file are subject to the Mozilla Public License
* Version 1.1 (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.mozilla.org/MPL/
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
* OF ANY KIND, either express or implied. See the LGPL or the MPL for
* the specific language governing rights and limitations.
*
* The Original Code is the cairo graphics library.
*
* The Initial Developer of the Original Code is Chris Wilson.
*
* Contributor(s):
* Chris Wilson <chris@chris-wilson.co.uk>
*/
#ifndef CAIRO_SCRIPT_PRIVATE_H
#define CAIRO_SCRIPT_PRIVATE_H
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "cairo-script-interpreter.h"
#include <setjmp.h>
#ifdef _MSC_VER
#undef inline
#define inline __inline
#endif
#ifndef FALSE
#define FALSE 0
#endif
#ifndef TRUE
#define TRUE (!FALSE)
#endif
#ifndef NULL
#define NULL (void *) 0
#endif
#if HAVE_STDINT_H
# include <stdint.h>
#elif HAVE_INTTYPES_H
# include <inttypes.h>
#elif HAVE_SYS_INT_TYPES_H
# include <sys/int_types.h>
#elif defined(_MSC_VER)
typedef __int8 int8_t;
typedef unsigned __int8 uint8_t;
typedef __int16 int16_t;
typedef unsigned __int16 uint16_t;
typedef __int32 int32_t;
typedef unsigned __int32 uint32_t;
typedef __int64 int64_t;
typedef unsigned __int64 uint64_t;
# ifndef HAVE_UINT64_T
# define HAVE_UINT64_T 1
# endif
#else
#error Cannot find definitions for fixed-width integral types (uint8_t, uint32_t, etc.)
#endif
#if HAVE_BYTESWAP_H
# include <byteswap.h>
#endif
#ifndef bswap_16
# define bswap_16(p) \
(((((uint16_t)(p)) & 0x00ff) << 8) | \
(((uint16_t)(p)) >> 8))
#endif
#ifndef bswap_32
# define bswap_32(p) \
(((((uint32_t)(p)) & 0x000000ff) << 24) | \
((((uint32_t)(p)) & 0x0000ff00) << 8) | \
((((uint32_t)(p)) & 0x00ff0000) >> 8) | \
((((uint32_t)(p))) >> 24))
#endif
#if __GNUC__ >= 3 && defined(__ELF__) && !defined(__sun)
# define slim_hidden_proto(name) slim_hidden_proto1(name, slim_hidden_int_name(name)) csi_private
# define slim_hidden_proto_no_warn(name) slim_hidden_proto1(name, slim_hidden_int_name(name)) csi_private_no_warn
# define slim_hidden_def(name) slim_hidden_def1(name, slim_hidden_int_name(name))
# define slim_hidden_int_name(name) INT_##name
# define slim_hidden_proto1(name, internal) \
extern __typeof (name) name \
__asm__ (slim_hidden_asmname (internal))
# define slim_hidden_def1(name, internal) \
extern __typeof (name) EXT_##name __asm__(slim_hidden_asmname(name)) \
__attribute__((__alias__(slim_hidden_asmname(internal))))
# define slim_hidden_ulp slim_hidden_ulp1(__USER_LABEL_PREFIX__)
# define slim_hidden_ulp1(x) slim_hidden_ulp2(x)
# define slim_hidden_ulp2(x) #x
# define slim_hidden_asmname(name) slim_hidden_asmname1(name)
# define slim_hidden_asmname1(name) slim_hidden_ulp #name
#else
# define slim_hidden_proto(name) int _csi_dummy_prototype(void)
# define slim_hidden_proto_no_warn(name) int _csi_dummy_prototype(void)
# define slim_hidden_def(name) int _csi_dummy_prototype(void)
#endif
#if __GNUC__ >= 3
#define csi_pure __attribute__((pure))
#define csi_const __attribute__((const))
#else
#define csi_pure
#define csi_const
#endif
#if defined(__GNUC__) && (__GNUC__ > 2) && defined(__OPTIMIZE__)
#define _CSI_BOOLEAN_EXPR(expr) \
__extension__ ({ \
int _csi_boolean_var_; \
if (expr) \
_csi_boolean_var_ = 1; \
else \
_csi_boolean_var_ = 0; \
_csi_boolean_var_; \
})
#define _csi_likely(expr) (__builtin_expect (_CSI_BOOLEAN_EXPR(expr), 1))
#define _csi_unlikely(expr) (__builtin_expect (_CSI_BOOLEAN_EXPR(expr), 0))
#else
#define _csi_likely(expr) (expr)
#define _csi_unlikely(expr) (expr)
#endif
#ifdef __GNUC__
#ifndef offsetof
#define offsetof(type, member) \
((char *) &((type *) 0)->member - (char *) 0)
#endif
#define csi_container_of(ptr, type, member) ({ \
const typeof(((type *) 0)->member) *mptr__ = (ptr); \
(type *) ((char *) mptr__ - offsetof (type, member)); \
})
#else
#define csi_container_of(ptr, type, member) \
(type *)((char *) (ptr) - (char *) &((type *)0)->member)
#endif
/* slim_internal.h */
#if (__GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 3)) && defined(__ELF__) && !defined(__sun)
#define csi_private_no_warn __attribute__((__visibility__("hidden")))
#elif defined(__SUNPRO_C) && (__SUNPRO_C >= 0x550)
#define csi_private_no_warn __hidden
#else /* not gcc >= 3.3 and not Sun Studio >= 8 */
#define csi_private_no_warn
#endif
#undef ARRAY_LENGTH
#define ARRAY_LENGTH(__array) ((int) (sizeof (__array) / sizeof (__array[0])))
#ifndef WARN_UNUSED_RESULT
#define WARN_UNUSED_RESULT
#endif
/* Add attribute(warn_unused_result) if supported */
#define csi_warn WARN_UNUSED_RESULT
#define csi_private csi_private_no_warn csi_warn
#define CSI_BITSWAP8(c) ((((c) * 0x0802LU & 0x22110LU) | ((c) * 0x8020LU & 0x88440LU)) * 0x10101LU >> 16)
#ifdef WORDS_BIGENDIAN
#define CSI_BITSWAP8_IF_LITTLE_ENDIAN(c) (c)
#else
#define CSI_BITSWAP8_IF_LITTLE_ENDIAN(c) CSI_BITSWAP8(c)
#endif
typedef enum _csi_status {
CSI_STATUS_SUCCESS = CAIRO_STATUS_SUCCESS,
CSI_STATUS_NO_MEMORY = CAIRO_STATUS_NO_MEMORY,
CSI_STATUS_INVALID_RESTORE = CAIRO_STATUS_INVALID_RESTORE,
CSI_STATUS_INVALID_POP_GROUP = CAIRO_STATUS_INVALID_POP_GROUP,
CSI_STATUS_NO_CURRENT_POINT = CAIRO_STATUS_NO_CURRENT_POINT,
CSI_STATUS_INVALID_MATRIX = CAIRO_STATUS_INVALID_MATRIX,
CSI_STATUS_INVALID_STATUS = CAIRO_STATUS_INVALID_STATUS,
CSI_STATUS_NULL_POINTER = CAIRO_STATUS_NULL_POINTER,
CSI_STATUS_INVALID_STRING = CAIRO_STATUS_INVALID_STRING,
CSI_STATUS_INVALID_PATH_DATA = CAIRO_STATUS_INVALID_PATH_DATA,
CSI_STATUS_READ_ERROR = CAIRO_STATUS_READ_ERROR,
CSI_STATUS_WRITE_ERROR = CAIRO_STATUS_WRITE_ERROR,
CSI_STATUS_SURFACE_FINISHED = CAIRO_STATUS_SURFACE_FINISHED,
CSI_STATUS_SURFACE_TYPE_MISMATCH = CAIRO_STATUS_SURFACE_TYPE_MISMATCH,
CSI_STATUS_PATTERN_TYPE_MISMATCH = CAIRO_STATUS_PATTERN_TYPE_MISMATCH,
CSI_STATUS_INVALID_CONTENT = CAIRO_STATUS_INVALID_CONTENT,
CSI_STATUS_INVALID_FORMAT = CAIRO_STATUS_INVALID_FORMAT,
CSI_STATUS_INVALID_VISUAL = CAIRO_STATUS_INVALID_VISUAL,
CSI_STATUS_FILE_NOT_FOUND = CAIRO_STATUS_FILE_NOT_FOUND,
CSI_STATUS_INVALID_DASH = CAIRO_STATUS_INVALID_DASH,
CSI_STATUS_INVALID_DSC_COMMENT = CAIRO_STATUS_INVALID_DSC_COMMENT,
CSI_STATUS_INVALID_INDEX = CAIRO_STATUS_INVALID_INDEX,
CSI_STATUS_CLIP_NOT_REPRESENTABLE = CAIRO_STATUS_CLIP_NOT_REPRESENTABLE,
CSI_STATUS_TEMP_FILE_ERROR = CAIRO_STATUS_TEMP_FILE_ERROR,
CSI_STATUS_INVALID_STRIDE = CAIRO_STATUS_INVALID_STRIDE,
CSI_STATUS_FONT_TYPE_MISMATCH = CAIRO_STATUS_FONT_TYPE_MISMATCH,
CSI_STATUS_USER_FONT_IMMUTABLE = CAIRO_STATUS_USER_FONT_IMMUTABLE,
CSI_STATUS_USER_FONT_ERROR = CAIRO_STATUS_USER_FONT_ERROR,
CSI_STATUS_NEGATIVE_COUNT = CAIRO_STATUS_NEGATIVE_COUNT,
CSI_STATUS_INVALID_CLUSTERS = CAIRO_STATUS_INVALID_CLUSTERS,
CSI_STATUS_INVALID_SLANT = CAIRO_STATUS_INVALID_SLANT,
CSI_STATUS_INVALID_WEIGHT = CAIRO_STATUS_INVALID_WEIGHT,
/* cairo-script-interpreter specific errors */
CSI_STATUS_INVALID_SCRIPT,
CSI_STATUS_SCRIPT_INVALID_TYPE,
CSI_STATUS_SCRIPT_INVALID_INDEX,
CSI_STATUS_SCRIPT_UNDEFINED_NAME,
CSI_STATUS_INTERPRETER_FINISHED,
_CSI_STATUS_SCRIPT_LAST_ERROR,
CSI_INT_STATUS_UNSUPPORTED
} csi_status_t;
typedef enum {
CSI_OBJECT_TYPE_NULL = 0,
/* atomics */
CSI_OBJECT_TYPE_BOOLEAN,
CSI_OBJECT_TYPE_INTEGER,
CSI_OBJECT_TYPE_MARK,
CSI_OBJECT_TYPE_NAME,
CSI_OBJECT_TYPE_OPERATOR,
CSI_OBJECT_TYPE_REAL,
/* compound */
CSI_OBJECT_TYPE_ARRAY = 0x8,
CSI_OBJECT_TYPE_DICTIONARY,
CSI_OBJECT_TYPE_FILE,
CSI_OBJECT_TYPE_MATRIX,
CSI_OBJECT_TYPE_STRING,
/* cairo */
CSI_OBJECT_TYPE_CONTEXT = 0x10,
CSI_OBJECT_TYPE_FONT,
CSI_OBJECT_TYPE_PATTERN,
CSI_OBJECT_TYPE_SCALED_FONT,
CSI_OBJECT_TYPE_SURFACE
} csi_object_type_t;
#define CSI_OBJECT_IS_ATOM(OBJ) (((OBJ)->type & CSI_OBJECT_TYPE_MASK) < 0x08)
#define CSI_OBJECT_IS_COMPOUND(OBJ) ((OBJ)->type & 0x08)
#define CSI_OBJECT_IS_CAIRO(OBJ) ((OBJ)->type & 0x10)
enum { /* attributes */
CSI_OBJECT_ATTR_EXECUTABLE = 1 << 6,
CSI_OBJECT_ATTR_WRITABLE = 1 << 7
};
#define CSI_OBJECT_ATTR_MASK (CSI_OBJECT_ATTR_EXECUTABLE | \
CSI_OBJECT_ATTR_WRITABLE)
#define CSI_OBJECT_TYPE_MASK (~CSI_OBJECT_ATTR_MASK)
typedef struct _cairo_script_interpreter csi_t;
typedef cairo_bool_t csi_boolean_t;
typedef csi_status_t (*csi_operator_t) (csi_t *);
typedef float csi_real_t;
typedef long csi_integer_t;
typedef long csi_name_t;
typedef struct _csi_array csi_array_t;
typedef struct _csi_buffer csi_buffer_t;
typedef struct _csi_compound_object csi_compound_object_t;
typedef struct _csi_dictionary csi_dictionary_t;
typedef struct _csi_file csi_file_t;
typedef struct _csi_hash_entry csi_hash_entry_t;
typedef struct _csi_hash_table csi_hash_table_t;
typedef struct _csi_hash_table_arrangement csi_hash_table_arrangement_t;
typedef struct _csi_list csi_list_t;
typedef struct _csi_matrix csi_matrix_t;
typedef struct _csi_object csi_object_t;
typedef struct _csi_scanner csi_scanner_t;
typedef struct _csi_stack csi_stack_t;
typedef struct _csi_string csi_string_t;
typedef cairo_bool_t
(*csi_hash_predicate_func_t) (void *entry);
typedef void
(*csi_hash_callback_func_t) (void *entry,
void *closure);
typedef cairo_bool_t
(*csi_hash_keys_equal_func_t) (const void *key_a, const void *key_b);
struct _csi_object {
csi_object_type_t type;
union {
cairo_t *cr;
cairo_font_face_t *font_face;
cairo_pattern_t *pattern;
cairo_scaled_font_t *scaled_font;
cairo_surface_t *surface;
csi_array_t *array;
csi_boolean_t boolean;
csi_compound_object_t *object;
csi_dictionary_t *dictionary;
csi_file_t *file;
csi_integer_t integer;
csi_matrix_t *matrix;
csi_operator_t op;
csi_name_t name;
csi_real_t real;
csi_string_t *string;
void *ptr;
} datum;
};
struct _csi_compound_object {
csi_object_type_t type;
unsigned int ref;
};
struct _csi_hash_entry {
unsigned long hash;
};
struct _csi_hash_table_arrangement {
unsigned long high_water_mark;
unsigned long size;
unsigned long rehash;
};
struct _csi_hash_table {
csi_hash_keys_equal_func_t keys_equal;
const csi_hash_table_arrangement_t *arrangement;
csi_hash_entry_t **entries;
unsigned long live_entries;
unsigned long used_entries;
unsigned long iterating; /* Iterating, no insert, no resize */
};
/* simple, embedded doubly-linked links */
struct _csi_list {
struct _csi_list *next, *prev;
};
struct _csi_buffer {
char *base, *ptr, *end;
unsigned int size;
};
struct _csi_stack {
csi_object_t *objects;
csi_integer_t len;
csi_integer_t size;
};
struct _csi_array {
csi_compound_object_t base;
csi_stack_t stack;
};
typedef struct _csi_dictionary_entry {
csi_hash_entry_t hash_entry;
csi_object_t value;
} csi_dictionary_entry_t;
struct _csi_dictionary {
csi_compound_object_t base;
csi_hash_table_t hash_table;
};
struct _csi_matrix {
csi_compound_object_t base;
cairo_matrix_t matrix;
};
struct _csi_string {
csi_compound_object_t base;
csi_integer_t len;
csi_integer_t deflate;
enum {
NONE,
ZLIB,
LZO,
} method;
char *string;
};
typedef struct _csi_filter_funcs {
int (*filter_getc) (csi_file_t *);
void (*filter_putc) (csi_file_t *, int);
int (*filter_read) (csi_file_t *, uint8_t *, int);
void (*filter_destroy) (csi_t *, void *);
} csi_filter_funcs_t;
struct _csi_file {
csi_compound_object_t base;
enum {
STDIO,
BYTES,
PROCEDURE,
FILTER
} type;
unsigned int flags;
void *src;
void *data;
uint8_t *bp;
int rem;
const csi_filter_funcs_t *filter;
};
union _csi_union_object {
void *ptr[2];
csi_stack_t stack;
csi_array_t arry;
csi_dictionary_t dictionary;
csi_matrix_t matrix;
csi_string_t string;
csi_file_t file;
csi_object_t object;
};
struct _csi_scanner {
jmp_buf jump_buffer;
int depth;
int bind;
csi_status_t (*push) (csi_t *ctx, csi_object_t *obj);
csi_status_t (*execute) (csi_t *ctx, csi_object_t *obj);
void *closure;
csi_buffer_t buffer;
csi_stack_t procedure_stack;
csi_object_t build_procedure;
unsigned int accumulator;
unsigned int accumulator_count;
unsigned int line_number;
};
typedef cairo_script_interpreter_hooks_t csi_hooks_t;
typedef struct _csi_chunk {
struct _csi_chunk *next;
int rem;
char *ptr;
} csi_chunk_t;
struct _cairo_script_interpreter {
int ref_count;
csi_status_t status;
unsigned int finished : 1;
csi_hooks_t hooks;
csi_hash_table_t strings;
csi_stack_t ostack;
csi_stack_t dstack;
csi_scanner_t scanner;
csi_chunk_t *perm_chunk;
struct {
csi_chunk_t *chunk;
void *free_list;
} slabs[16];
csi_array_t *free_array;
csi_dictionary_t *free_dictionary;
csi_string_t *free_string;
csi_operator_t opcode[256];
/* caches of live data */
csi_list_t *_images;
csi_list_t *_faces;
};
typedef struct _csi_operator_def {
const char *name;
csi_operator_t op;
} csi_operator_def_t;
typedef struct _csi_integer_constant_def {
const char *name;
csi_integer_t value;
} csi_integer_constant_def_t;
typedef struct _csi_real_constant_def {
const char *name;
csi_real_t value;
} csi_real_constant_def_t;
/* cairo-script-file.c */
csi_private csi_status_t
csi_file_new (csi_t *ctx,
csi_object_t *obj,
const char *path, const char *mode);
csi_private csi_status_t
csi_file_new_for_stream (csi_t *ctx,
csi_object_t *obj,
FILE *stream);
csi_private csi_status_t
csi_file_new_for_bytes (csi_t *ctx,
csi_object_t *obj,
const char *bytes,
unsigned int length);
csi_private csi_status_t
csi_file_new_from_string (csi_t *ctx,
csi_object_t *obj,
csi_string_t *src);
csi_private csi_status_t
csi_file_new_ascii85_decode (csi_t *ctx,
csi_object_t *obj,
csi_dictionary_t *dict,
csi_object_t *src);
csi_private csi_status_t
csi_file_new_deflate_decode (csi_t *ctx,
csi_object_t *obj,
csi_dictionary_t *dict,
csi_object_t *src);
csi_private csi_status_t
_csi_file_execute (csi_t *ctx, csi_file_t *obj);
csi_private int
csi_file_getc (csi_file_t *obj);
csi_private int
csi_file_read (csi_file_t *obj, void *buf, int len);
csi_private void
csi_file_putc (csi_file_t *obj, int c);
csi_private void
csi_file_flush (csi_file_t *obj);
csi_private void
csi_file_close (csi_t *ctx, csi_file_t *obj);
csi_private void
_csi_file_free (csi_t *ctx, csi_file_t *obj);
csi_private csi_status_t
_csi_file_as_string (csi_t *ctx,
csi_file_t *file,
csi_object_t *obj);
/* cairo-script-hash.c */
csi_private csi_status_t
_csi_hash_table_init (csi_hash_table_t *hash_table,
csi_hash_keys_equal_func_t keys_equal);
csi_private void
_csi_hash_table_fini (csi_hash_table_t *hash_table);
csi_private void *
_csi_hash_table_lookup (csi_hash_table_t *hash_table,
csi_hash_entry_t *key);
csi_private csi_status_t
_csi_hash_table_insert (csi_hash_table_t *hash_table,
csi_hash_entry_t *entry);
csi_private void
_csi_hash_table_remove (csi_hash_table_t *hash_table,
csi_hash_entry_t *key);
csi_private void
_csi_hash_table_foreach (csi_hash_table_t *hash_table,
csi_hash_callback_func_t hash_callback,
void *closure);
/* cairo-script-interpreter.c */
csi_private void *
_csi_alloc (csi_t *ctx, int size);
csi_private void *
_csi_alloc0 (csi_t *ctx, int size);
csi_private void *
_csi_realloc (csi_t *ctx, void *ptr, int size);
csi_private void
_csi_free (csi_t *ctx, void *ptr);
csi_private void *
_csi_slab_alloc (csi_t *ctx, int size);
csi_private void *
_csi_perm_alloc (csi_t *ctx, int size);
csi_private void
_csi_slab_free (csi_t *ctx, void *ptr, int size);
csi_private csi_status_t
csi_push_ostack (csi_t *ctx, csi_object_t *obj);
csi_private csi_status_t
_csi_name_define (csi_t *ctx, csi_name_t name, csi_object_t *obj);
csi_private csi_status_t
_csi_name_lookup (csi_t *ctx, csi_name_t name, csi_object_t *obj);
csi_private csi_status_t
_csi_name_undefine (csi_t *ctx, csi_name_t name);
csi_private csi_status_t
_csi_intern_string (csi_t *ctx, const char **str_inout, int len);
csi_private csi_status_t
_csi_error (csi_status_t status);
/* cairo-script-objects.c */
csi_private csi_status_t
csi_array_new (csi_t *ctx,
csi_integer_t initial_size,
csi_object_t *obj);
csi_private csi_status_t
_csi_array_execute (csi_t *ctx, csi_array_t *array);
csi_private csi_status_t
csi_array_get (csi_t *ctx,
csi_array_t *array,
long elem,
csi_object_t *value);
csi_private csi_status_t
csi_array_put (csi_t *ctx,
csi_array_t *array,
csi_integer_t elem,
csi_object_t *value);
csi_private csi_status_t
csi_array_append (csi_t *ctx,
csi_array_t *array,
csi_object_t *obj);
csi_private void
csi_array_free (csi_t *ctx, csi_array_t *array);
static inline void
csi_boolean_new (csi_object_t *obj,
csi_boolean_t v)
{
obj->type = CSI_OBJECT_TYPE_BOOLEAN;
obj->datum.boolean = v;
}
csi_private csi_status_t
csi_dictionary_new (csi_t *ctx,
csi_object_t *obj);
csi_private csi_status_t
csi_dictionary_put (csi_t *ctx,
csi_dictionary_t *dict,
csi_name_t name,
csi_object_t *value);
csi_private csi_status_t
csi_dictionary_get (csi_t *ctx,
csi_dictionary_t *dict,
csi_name_t name,
csi_object_t *value);
csi_private csi_boolean_t
csi_dictionary_has (csi_dictionary_t *dict,
csi_name_t name);
csi_private void
csi_dictionary_remove (csi_t *ctx,
csi_dictionary_t *dict,
csi_name_t name);
csi_private void
csi_dictionary_free (csi_t *ctx,
csi_dictionary_t *dict);
static inline void
csi_integer_new (csi_object_t *obj,
csi_integer_t v)
{
obj->type = CSI_OBJECT_TYPE_INTEGER;
obj->datum.integer = v;
}
csi_private csi_status_t
csi_matrix_new (csi_t *ctx,
csi_object_t *obj);
csi_private csi_status_t
csi_matrix_new_from_array (csi_t *ctx,
csi_object_t *obj,
csi_array_t *array);
csi_private csi_status_t
csi_matrix_new_from_matrix (csi_t *ctx,
csi_object_t *obj,
const cairo_matrix_t *m);
csi_private csi_status_t
csi_matrix_new_from_values (csi_t *ctx,
csi_object_t *obj,
double v[6]);
csi_private void
csi_matrix_free (csi_t *ctx,
csi_matrix_t *obj);
csi_private csi_status_t
csi_name_new (csi_t *ctx,
csi_object_t *obj,
const char *str,
int len);
csi_private csi_status_t
csi_name_new_static (csi_t *ctx,
csi_object_t *obj,
const char *str);
static inline void
csi_operator_new (csi_object_t *obj,
csi_operator_t op)
{
obj->type = CSI_OBJECT_TYPE_OPERATOR | CSI_OBJECT_ATTR_EXECUTABLE;
obj->datum.op = op;
}
static inline void
csi_real_new (csi_object_t *obj,
csi_real_t v)
{
obj->type = CSI_OBJECT_TYPE_REAL;
obj->datum.real = v;
}
csi_private csi_status_t
csi_string_new (csi_t *ctx,
csi_object_t *obj,
const char *str,
int len);
csi_private csi_status_t
csi_string_deflate_new (csi_t *ctx,
csi_object_t *obj,
void *bytes,
int in_len,
int out_len);
csi_private csi_status_t
csi_string_new_from_bytes (csi_t *ctx,
csi_object_t *obj,
char *bytes,
unsigned int len);
csi_private void
csi_string_free (csi_t *ctx, csi_string_t *string);
csi_private csi_status_t
csi_object_execute (csi_t *ctx, csi_object_t *obj);
csi_private csi_object_t *
csi_object_reference (csi_object_t *obj);
csi_private void
csi_object_free (csi_t *ctx,
csi_object_t *obj);
csi_private csi_status_t
csi_object_as_file (csi_t *ctx,
csi_object_t *src,
csi_object_t *file);
csi_private csi_boolean_t
csi_object_eq (csi_object_t *a,
csi_object_t *b);
csi_private csi_status_t
csi_object_compare (csi_object_t *a,
csi_object_t *b,
int *out_cmp);
/* cairo-script-operators.c */
csi_private const csi_operator_def_t *
_csi_operators (void);
csi_private const csi_integer_constant_def_t *
_csi_integer_constants (void);
csi_private const csi_real_constant_def_t *
_csi_real_constants (void);
/* cairo-script-scanner.c */
csi_private csi_status_t
_csi_scanner_init (csi_t *ctx, csi_scanner_t *scanner);
csi_private csi_status_t
_csi_scan_file (csi_t *ctx, csi_file_t *src);
csi_private csi_status_t
_csi_translate_file (csi_t *ctx,
csi_file_t *file,
cairo_write_func_t write_func,
void *closure);
csi_private void
_csi_scanner_fini (csi_t *ctx, csi_scanner_t *scanner);
csi_private csi_boolean_t
_csi_parse_number (csi_object_t *obj, const char *s, int len);
/* cairo-script-stack.c */
csi_private csi_status_t
_csi_stack_init (csi_t *ctx, csi_stack_t *stack, csi_integer_t size);
csi_private void
_csi_stack_fini (csi_t *ctx, csi_stack_t *stack);
csi_private csi_status_t
_csi_stack_roll (csi_t *ctx,
csi_stack_t *stack,
csi_integer_t mod,
csi_integer_t n);
csi_private csi_status_t
_csi_stack_grow (csi_t *ctx, csi_stack_t *stack, csi_integer_t cnt);
csi_private csi_status_t
_csi_stack_push_internal (csi_t *ctx, csi_stack_t *stack,
const csi_object_t *obj);
csi_private csi_object_t *
_csi_stack_peek (csi_stack_t *stack, csi_integer_t i);
csi_private void
_csi_stack_pop (csi_t *ctx, csi_stack_t *stack, csi_integer_t count);
csi_private csi_status_t
_csi_stack_exch (csi_stack_t *stack);
static inline csi_object_type_t
csi_object_get_type (const csi_object_t *obj)
{
return obj->type & CSI_OBJECT_TYPE_MASK;
}
static inline csi_boolean_t
csi_object_is_procedure (const csi_object_t *obj)
{
return obj->type == (CSI_OBJECT_TYPE_ARRAY | CSI_OBJECT_ATTR_EXECUTABLE);
}
static inline csi_boolean_t
csi_object_is_number (const csi_object_t *obj)
{
int type = csi_object_get_type (obj);
switch (type) {
case CSI_OBJECT_TYPE_BOOLEAN:
case CSI_OBJECT_TYPE_INTEGER:
case CSI_OBJECT_TYPE_REAL:
return 1;
default:
return 0;
}
}
static inline double
csi_number_get_value (const csi_object_t *obj)
{
int type = csi_object_get_type (obj);
switch (type) {
case CSI_OBJECT_TYPE_BOOLEAN: return obj->datum.boolean;
case CSI_OBJECT_TYPE_INTEGER: return obj->datum.integer;
case CSI_OBJECT_TYPE_REAL: return obj->datum.real;
default: return 0.;
}
}
static inline csi_status_t
_csi_stack_push (csi_t *ctx, csi_stack_t *stack,
const csi_object_t *obj)
{
if (_csi_unlikely (stack->len == stack->size))
return _csi_stack_push_internal (ctx, stack, obj);
stack->objects[stack->len++] = *obj;
return CSI_STATUS_SUCCESS;
}
static inline csi_boolean_t
_csi_check_ostack (csi_t *ctx, csi_integer_t count)
{
return ctx->ostack.len >= count;
}
static inline csi_object_t *
_csi_peek_ostack (csi_t *ctx, csi_integer_t i)
{
return &ctx->ostack.objects[ctx->ostack.len - i -1];
}
static inline void
_csi_pop_ostack (csi_t *ctx, csi_integer_t count)
{
do
csi_object_free (ctx, &ctx->ostack.objects[--ctx->ostack.len]);
while (--count);
}
static inline csi_status_t
_csi_push_ostack_copy (csi_t *ctx, csi_object_t *obj)
{
return _csi_stack_push (ctx, &ctx->ostack, csi_object_reference (obj));
}
static inline csi_status_t
_csi_push_ostack (csi_t *ctx, csi_object_t *obj)
{
return _csi_stack_push (ctx, &ctx->ostack, obj);
}
static inline csi_status_t
_csi_push_ostack_boolean (csi_t *ctx, csi_boolean_t v)
{
csi_object_t obj;
obj.type = CSI_OBJECT_TYPE_BOOLEAN;
obj.datum.boolean = v;
return _csi_stack_push (ctx, &ctx->ostack, &obj);
}
static inline csi_status_t
_csi_push_ostack_integer (csi_t *ctx, csi_integer_t v)
{
csi_object_t obj;
obj.type = CSI_OBJECT_TYPE_INTEGER;
obj.datum.integer = v;
return _csi_stack_push (ctx, &ctx->ostack, &obj);
}
static inline csi_status_t
_csi_push_ostack_mark (csi_t *ctx)
{
csi_object_t obj;
obj.type = CSI_OBJECT_TYPE_MARK;
return _csi_stack_push (ctx, &ctx->ostack, &obj);
}
static inline csi_status_t
_csi_push_ostack_null (csi_t *ctx)
{
csi_object_t obj;
obj.type = CSI_OBJECT_TYPE_NULL;
return _csi_stack_push (ctx, &ctx->ostack, &obj);
}
static inline csi_status_t
_csi_push_ostack_real (csi_t *ctx, csi_real_t v)
{
csi_object_t obj;
obj.type = CSI_OBJECT_TYPE_REAL;
obj.datum.real = v;
return _csi_stack_push (ctx, &ctx->ostack, &obj);
}
slim_hidden_proto_no_warn (cairo_script_interpreter_destroy);
slim_hidden_proto_no_warn (cairo_script_interpreter_reference);
#endif /* CAIRO_SCRIPT_PRIVATE_H */