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path: root/source/pdf/pdf-object.c
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Diffstat (limited to 'source/pdf/pdf-object.c')
-rw-r--r--source/pdf/pdf-object.c156
1 files changed, 83 insertions, 73 deletions
diff --git a/source/pdf/pdf-object.c b/source/pdf/pdf-object.c
index bd68b761..0d43e056 100644
--- a/source/pdf/pdf-object.c
+++ b/source/pdf/pdf-object.c
@@ -2,12 +2,17 @@
#include "mupdf/pdf.h"
#include "../fitz/fitz-imp.h"
-#include "pdf-name-table.h"
-
#include <stdarg.h>
#include <stdlib.h>
#include <string.h>
+#define PDF_MAKE_NAME(STRING,NAME) STRING,
+static const char *PDF_NAME_LIST[] = {
+ "", /* dummy */
+#include "mupdf/pdf/name-table.h"
+};
+#undef PDF_MAKE_NAME
+
typedef enum pdf_objkind_e
{
PDF_INT = 'i',
@@ -102,13 +107,13 @@ typedef struct pdf_obj_ref_s
pdf_obj *
pdf_new_null(fz_context *ctx, pdf_document *doc)
{
- return PDF_OBJ_NULL;
+ return PDF_NULL;
}
pdf_obj *
pdf_new_bool(fz_context *ctx, pdf_document *doc, int b)
{
- return b ? PDF_OBJ_TRUE : PDF_OBJ_FALSE;
+ return b ? PDF_TRUE : PDF_FALSE;
}
pdf_obj *
@@ -166,9 +171,9 @@ pdf_new_name(fz_context *ctx, pdf_document *doc, const char *str)
pdf_obj_name *obj;
const char **stdname;
- stdname = bsearch(str, &PDF_NAMES[1], PDF_OBJ_ENUM_NAME__LIMIT-1, sizeof(char *), namecmp);
+ stdname = bsearch(str, &PDF_NAME_LIST[1], PDF_ENUM_LIMIT_NAME-1, sizeof(char *), namecmp);
if (stdname != NULL)
- return (pdf_obj *)(intptr_t)(stdname - &PDF_NAMES[0]);
+ return (pdf_obj *)(intptr_t)(stdname - &PDF_NAME_LIST[0]);
obj = Memento_label(fz_malloc(ctx, offsetof(pdf_obj_name, n) + strlen(str) + 1), "pdf_obj(name)");
obj->super.refs = 1;
@@ -195,33 +200,31 @@ pdf_new_indirect(fz_context *ctx, pdf_document *doc, int num, int gen)
pdf_obj *
pdf_keep_obj(fz_context *ctx, pdf_obj *obj)
{
- if (obj >= PDF_OBJ__LIMIT)
+ if (obj >= PDF_OBJ_LIMIT)
{
(void)fz_keep_imp16(ctx, obj, &obj->refs);
}
return obj;
}
-#define OBJ_IS_NULL(obj) \
- (obj == PDF_OBJ_NULL)
-#define OBJ_IS_BOOL(obj) \
- (obj == PDF_OBJ_TRUE || obj == PDF_OBJ_FALSE)
+#define OBJ_IS_NULL(obj) (obj == PDF_NULL)
+#define OBJ_IS_BOOL(obj) (obj == PDF_TRUE || obj == PDF_FALSE)
#define OBJ_IS_INT(obj) \
- (obj >= PDF_OBJ__LIMIT ? obj->kind == PDF_INT : 0)
+ (obj >= PDF_OBJ_LIMIT ? obj->kind == PDF_INT : 0)
#define OBJ_IS_REAL(obj) \
- (obj >= PDF_OBJ__LIMIT ? obj->kind == PDF_REAL : 0)
+ (obj >= PDF_OBJ_LIMIT ? obj->kind == PDF_REAL : 0)
#define OBJ_IS_NUMBER(obj) \
- (obj >= PDF_OBJ__LIMIT ? (obj->kind == PDF_REAL || obj->kind == PDF_INT) : 0)
+ (obj >= PDF_OBJ_LIMIT ? (obj->kind == PDF_REAL || obj->kind == PDF_INT) : 0)
#define OBJ_IS_STRING(obj) \
- (obj >= PDF_OBJ__LIMIT ? obj->kind == PDF_STRING : 0)
+ (obj >= PDF_OBJ_LIMIT ? obj->kind == PDF_STRING : 0)
#define OBJ_IS_NAME(obj) \
- ((obj >= PDF_OBJ__LIMIT) ? (obj->kind == PDF_NAME) : (obj != NULL && obj < PDF_OBJ_NAME__LIMIT))
+ ((obj >= PDF_OBJ_LIMIT) ? (obj->kind == PDF_NAME) : (obj != NULL && obj < PDF_NAME_LIMIT))
#define OBJ_IS_ARRAY(obj) \
- (obj >= PDF_OBJ__LIMIT ? obj->kind == PDF_ARRAY : 0)
+ (obj >= PDF_OBJ_LIMIT ? obj->kind == PDF_ARRAY : 0)
#define OBJ_IS_DICT(obj) \
- (obj >= PDF_OBJ__LIMIT ? obj->kind == PDF_DICT : 0)
+ (obj >= PDF_OBJ_LIMIT ? obj->kind == PDF_DICT : 0)
#define OBJ_IS_INDIRECT(obj) \
- (obj >= PDF_OBJ__LIMIT ? obj->kind == PDF_INDIRECT : 0)
+ (obj >= PDF_OBJ_LIMIT ? obj->kind == PDF_INDIRECT : 0)
#define RESOLVE(obj) \
if (OBJ_IS_INDIRECT(obj)) \
@@ -289,13 +292,13 @@ int pdf_is_dict(fz_context *ctx, pdf_obj *obj)
int pdf_to_bool(fz_context *ctx, pdf_obj *obj)
{
RESOLVE(obj);
- return obj == PDF_OBJ_TRUE;
+ return obj == PDF_TRUE;
}
int pdf_to_int(fz_context *ctx, pdf_obj *obj)
{
RESOLVE(obj);
- if (obj < PDF_OBJ__LIMIT)
+ if (obj < PDF_OBJ_LIMIT)
return 0;
if (obj->kind == PDF_INT)
return (int)NUM(obj)->u.i;
@@ -307,7 +310,7 @@ int pdf_to_int(fz_context *ctx, pdf_obj *obj)
int64_t pdf_to_int64(fz_context *ctx, pdf_obj *obj)
{
RESOLVE(obj);
- if (obj < PDF_OBJ__LIMIT)
+ if (obj < PDF_OBJ_LIMIT)
return 0;
if (obj->kind == PDF_INT)
return NUM(obj)->u.i;
@@ -319,7 +322,7 @@ int64_t pdf_to_int64(fz_context *ctx, pdf_obj *obj)
float pdf_to_real(fz_context *ctx, pdf_obj *obj)
{
RESOLVE(obj);
- if (obj < PDF_OBJ__LIMIT)
+ if (obj < PDF_OBJ_LIMIT)
return 0;
if (obj->kind == PDF_REAL)
return NUM(obj)->u.f;
@@ -333,8 +336,8 @@ const char *pdf_to_name(fz_context *ctx, pdf_obj *obj)
RESOLVE(obj);
if (!OBJ_IS_NAME(obj))
return "";
- if (obj < PDF_OBJ_NAME__LIMIT)
- return PDF_NAMES[(intptr_t)obj];
+ if (obj < PDF_NAME_LIMIT)
+ return PDF_NAME_LIST[(intptr_t)obj];
return NAME(obj)->n;
}
@@ -395,7 +398,7 @@ pdf_document *pdf_get_indirect_document(fz_context *ctx, pdf_obj *obj)
pdf_document *pdf_get_bound_document(fz_context *ctx, pdf_obj *obj)
{
- if (obj < PDF_OBJ__LIMIT)
+ if (obj < PDF_OBJ_LIMIT)
return NULL;
if (obj->kind == PDF_INDIRECT)
return REF(obj)->doc;
@@ -424,27 +427,27 @@ pdf_objcmp(fz_context *ctx, pdf_obj *a, pdf_obj *b)
if (!a || !b)
return 1;
- if (a < PDF_OBJ_NAME__LIMIT)
+ if (a < PDF_NAME_LIMIT)
{
- if (b < PDF_OBJ_NAME__LIMIT)
+ if (b < PDF_NAME_LIMIT)
return a != b;
- if (b < PDF_OBJ__LIMIT)
+ if (b < PDF_OBJ_LIMIT)
return 1;
if (b->kind != PDF_NAME)
return 1;
- return strcmp(NAME(b)->n, PDF_NAMES[(intptr_t)a]);
+ return strcmp(NAME(b)->n, PDF_NAME_LIST[(intptr_t)a]);
}
- if (b < PDF_OBJ_NAME__LIMIT)
+ if (b < PDF_NAME_LIMIT)
{
- if (a < PDF_OBJ__LIMIT)
+ if (a < PDF_OBJ_LIMIT)
return 1;
if (a->kind != PDF_NAME)
return 1;
- return strcmp(NAME(a)->n, PDF_NAMES[(intptr_t)b]);
+ return strcmp(NAME(a)->n, PDF_NAME_LIST[(intptr_t)b]);
}
- if (a < PDF_OBJ__LIMIT || b < PDF_OBJ__LIMIT)
+ if (a < PDF_OBJ_LIMIT || b < PDF_OBJ_LIMIT)
return a != b;
if (a->kind != b->kind)
@@ -508,18 +511,25 @@ pdf_objcmp(fz_context *ctx, pdf_obj *a, pdf_obj *b)
return 1;
}
+int pdf_name_eq(fz_context *ctx, pdf_obj *a, pdf_obj *b)
+{
+ /* A quick check in case they are constants */
+ if (a < PDF_NAME_LIMIT)
+ return a == b;
+ return !pdf_objcmp_resolve(ctx, a, b);
+}
+
static char *
pdf_objkindstr(pdf_obj *obj)
{
if (!obj)
return "<NULL>";
- if (obj < PDF_OBJ_NAME__LIMIT)
+ if (obj < PDF_NAME_LIMIT)
return "name";
- if (obj == PDF_OBJ_TRUE || obj == PDF_OBJ_FALSE)
+ if (obj == PDF_TRUE || obj == PDF_FALSE)
return "boolean";
- if (obj == PDF_OBJ_NULL)
+ if (obj == PDF_NULL)
return "null";
-
switch (obj->kind)
{
case PDF_INT: return "integer";
@@ -634,7 +644,7 @@ static void prepare_object_for_alteration(fz_context *ctx, pdf_obj *obj, pdf_obj
obj should be a dict or an array. We don't care about
any other types, as they aren't 'containers'.
*/
- if (obj < PDF_OBJ__LIMIT)
+ if (obj < PDF_OBJ_LIMIT)
return;
switch (obj->kind)
@@ -689,7 +699,7 @@ pdf_array_put(fz_context *ctx, pdf_obj *obj, int i, pdf_obj *item)
fz_throw(ctx, FZ_ERROR_GENERIC, "index out of bounds");
if (!item)
- item = PDF_OBJ_NULL;
+ item = PDF_NULL;
prepare_object_for_alteration(ctx, obj, item);
pdf_drop_obj(ctx, ARRAY(obj)->items[i]);
@@ -715,7 +725,7 @@ pdf_array_push(fz_context *ctx, pdf_obj *obj, pdf_obj *item)
fz_throw(ctx, FZ_ERROR_GENERIC, "not an array (%s)", pdf_objkindstr(obj));
if (!item)
- item = PDF_OBJ_NULL;
+ item = PDF_NULL;
prepare_object_for_alteration(ctx, obj, item);
if (ARRAY(obj)->len + 1 > ARRAY(obj)->cap)
@@ -728,7 +738,7 @@ void
pdf_array_push_drop(fz_context *ctx, pdf_obj *obj, pdf_obj *item)
{
RESOLVE(obj);
- if (obj >= PDF_OBJ__LIMIT)
+ if (obj >= PDF_OBJ_LIMIT)
{
fz_try(ctx)
pdf_array_push(ctx, obj, item);
@@ -749,7 +759,7 @@ pdf_array_insert(fz_context *ctx, pdf_obj *obj, pdf_obj *item, int i)
fz_throw(ctx, FZ_ERROR_GENERIC, "index out of bounds");
if (!item)
- item = PDF_OBJ_NULL;
+ item = PDF_NULL;
prepare_object_for_alteration(ctx, obj, item);
if (ARRAY(obj)->len + 1 > ARRAY(obj)->cap)
@@ -763,7 +773,7 @@ void
pdf_array_insert_drop(fz_context *ctx, pdf_obj *obj, pdf_obj *item, int i)
{
RESOLVE(obj);
- if (obj >= PDF_OBJ__LIMIT)
+ if (obj >= PDF_OBJ_LIMIT)
{
fz_try(ctx)
pdf_array_insert(ctx, obj, item, i);
@@ -865,16 +875,16 @@ static int keyvalcmp(const void *ap, const void *bp)
/* We should never get a->k == NULL or b->k == NULL. If we
* do, then they match. */
- if (a->k < PDF_OBJ_NAME__LIMIT)
- an = PDF_NAMES[(intptr_t)a->k];
- else if (a->k >= PDF_OBJ__LIMIT && a->k->kind == PDF_NAME)
+ if (a->k < PDF_NAME_LIMIT)
+ an = PDF_NAME_LIST[(intptr_t)a->k];
+ else if (a->k >= PDF_OBJ_LIMIT && a->k->kind == PDF_NAME)
an = NAME(a->k)->n;
else
return 0;
- if (b->k < PDF_OBJ_NAME__LIMIT)
- bn = PDF_NAMES[(intptr_t)b->k];
- else if (b->k >= PDF_OBJ__LIMIT && b->k->kind == PDF_NAME)
+ if (b->k < PDF_NAME_LIMIT)
+ bn = PDF_NAME_LIST[(intptr_t)b->k];
+ else if (b->k >= PDF_OBJ_LIMIT && b->k->kind == PDF_NAME)
bn = NAME(b->k)->n;
else
return 0;
@@ -1000,7 +1010,7 @@ pdf_dict_put_val_null(fz_context *ctx, pdf_obj *obj, int idx)
prepare_object_for_alteration(ctx, obj, NULL);
pdf_drop_obj(ctx, DICT(obj)->items[idx].v);
- DICT(obj)->items[idx].v = PDF_OBJ_NULL;
+ DICT(obj)->items[idx].v = PDF_NULL;
}
/* Returns 0 <= i < len for key found. Returns -1-len < i <= -1 for key
@@ -1054,7 +1064,7 @@ pdf_dict_find(fz_context *ctx, pdf_obj *obj, pdf_obj *key)
int r = len - 1;
pdf_obj *k = DICT(obj)->items[r].k;
- if (k == key || (k >= PDF_OBJ__LIMIT && strcmp(NAME(k)->n, PDF_NAMES[(intptr_t)key]) < 0))
+ if (k == key || (k >= PDF_OBJ_LIMIT && strcmp(NAME(k)->n, PDF_NAME_LIST[(intptr_t)key]) < 0))
{
return -1 - (r+1);
}
@@ -1065,7 +1075,7 @@ pdf_dict_find(fz_context *ctx, pdf_obj *obj, pdf_obj *key)
int c;
k = DICT(obj)->items[m].k;
- c = (k < PDF_OBJ__LIMIT ? (char *)key-(char *)k : -strcmp(NAME(k)->n, PDF_NAMES[(intptr_t)key]));
+ c = (k < PDF_OBJ_LIMIT ? (char *)key-(char *)k : -strcmp(NAME(k)->n, PDF_NAME_LIST[(intptr_t)key]));
if (c < 0)
r = m - 1;
else if (c > 0)
@@ -1081,14 +1091,14 @@ pdf_dict_find(fz_context *ctx, pdf_obj *obj, pdf_obj *key)
for (i = 0; i < len; i++)
{
pdf_obj *k = DICT(obj)->items[i].k;
- if (k < PDF_OBJ__LIMIT)
+ if (k < PDF_OBJ_LIMIT)
{
if (k == key)
return i;
}
else
{
- if (!strcmp(PDF_NAMES[(intptr_t)key], NAME(k)->n))
+ if (!strcmp(PDF_NAME_LIST[(intptr_t)key], NAME(k)->n))
return i;
}
}
@@ -1175,7 +1185,7 @@ pdf_dict_get(fz_context *ctx, pdf_obj *obj, pdf_obj *key)
if (!OBJ_IS_NAME(key))
return NULL;
- if (key < PDF_OBJ_NAME__LIMIT)
+ if (key < PDF_NAME_LIMIT)
i = pdf_dict_find(ctx, obj, key);
else
i = pdf_dict_finds(ctx, obj, pdf_to_name(ctx, key));
@@ -1219,12 +1229,12 @@ pdf_dict_get_put(fz_context *ctx, pdf_obj *obj, pdf_obj *key, pdf_obj *val, pdf_
fz_throw(ctx, FZ_ERROR_GENERIC, "key is not a name (%s)", pdf_objkindstr(obj));
if (!val)
- val = PDF_OBJ_NULL;
+ val = PDF_NULL;
if (DICT(obj)->len > 100 && !(obj->flags & PDF_FLAGS_SORTED))
pdf_sort_dict(ctx, obj);
- if (key < PDF_OBJ_NAME__LIMIT)
+ if (key < PDF_NAME_LIMIT)
i = pdf_dict_find(ctx, obj, key);
else
i = pdf_dict_finds(ctx, obj, pdf_to_name(ctx, key));
@@ -1512,8 +1522,8 @@ pdf_dict_del(fz_context *ctx, pdf_obj *obj, pdf_obj *key)
if (!OBJ_IS_NAME(key))
fz_throw(ctx, FZ_ERROR_GENERIC, "key is not a name (%s)", pdf_objkindstr(key));
- if (key < PDF_OBJ_NAME__LIMIT)
- pdf_dict_dels(ctx, obj, PDF_NAMES[(intptr_t)key]);
+ if (key < PDF_NAME_LIMIT)
+ pdf_dict_dels(ctx, obj, PDF_NAME_LIST[(intptr_t)key]);
else
pdf_dict_dels(ctx, obj, NAME(key)->n);
}
@@ -1534,7 +1544,7 @@ pdf_sort_dict(fz_context *ctx, pdf_obj *obj)
pdf_obj *
pdf_deep_copy_obj(fz_context *ctx, pdf_obj *obj)
{
- if (obj < PDF_OBJ__LIMIT)
+ if (obj < PDF_OBJ_LIMIT)
{
return pdf_keep_obj(ctx, obj);
}
@@ -1590,7 +1600,7 @@ int
pdf_obj_marked(fz_context *ctx, pdf_obj *obj)
{
RESOLVE(obj);
- if (obj < PDF_OBJ__LIMIT)
+ if (obj < PDF_OBJ_LIMIT)
return 0;
return !!(obj->flags & PDF_FLAGS_MARKED);
}
@@ -1600,7 +1610,7 @@ pdf_mark_obj(fz_context *ctx, pdf_obj *obj)
{
int marked;
RESOLVE(obj);
- if (obj < PDF_OBJ__LIMIT)
+ if (obj < PDF_OBJ_LIMIT)
return 0;
marked = !!(obj->flags & PDF_FLAGS_MARKED);
obj->flags |= PDF_FLAGS_MARKED;
@@ -1611,7 +1621,7 @@ void
pdf_unmark_obj(fz_context *ctx, pdf_obj *obj)
{
RESOLVE(obj);
- if (obj < PDF_OBJ__LIMIT)
+ if (obj < PDF_OBJ_LIMIT)
return;
obj->flags &= ~PDF_FLAGS_MARKED;
}
@@ -1619,7 +1629,7 @@ pdf_unmark_obj(fz_context *ctx, pdf_obj *obj)
void
pdf_set_obj_memo(fz_context *ctx, pdf_obj *obj, int bit, int memo)
{
- if (obj < PDF_OBJ__LIMIT)
+ if (obj < PDF_OBJ_LIMIT)
return;
bit <<= 1;
@@ -1633,7 +1643,7 @@ pdf_set_obj_memo(fz_context *ctx, pdf_obj *obj, int bit, int memo)
int
pdf_obj_memo(fz_context *ctx, pdf_obj *obj, int bit, int *memo)
{
- if (obj < PDF_OBJ__LIMIT)
+ if (obj < PDF_OBJ_LIMIT)
return 0;
bit <<= 1;
if (!(obj->flags & (PDF_FLAGS_MEMO_BASE<<bit)))
@@ -1645,7 +1655,7 @@ pdf_obj_memo(fz_context *ctx, pdf_obj *obj, int bit, int *memo)
int pdf_obj_is_dirty(fz_context *ctx, pdf_obj *obj)
{
RESOLVE(obj);
- if (obj < PDF_OBJ__LIMIT)
+ if (obj < PDF_OBJ_LIMIT)
return 0;
return !!(obj->flags & PDF_FLAGS_DIRTY);
}
@@ -1653,14 +1663,14 @@ int pdf_obj_is_dirty(fz_context *ctx, pdf_obj *obj)
void pdf_dirty_obj(fz_context *ctx, pdf_obj *obj)
{
RESOLVE(obj);
- if (obj < PDF_OBJ__LIMIT)
+ if (obj < PDF_OBJ_LIMIT)
return;
obj->flags |= PDF_FLAGS_DIRTY;
}
void pdf_clean_obj(fz_context *ctx, pdf_obj *obj)
{
- if (obj < PDF_OBJ__LIMIT)
+ if (obj < PDF_OBJ_LIMIT)
return;
obj->flags &= ~PDF_FLAGS_DIRTY;
}
@@ -1694,7 +1704,7 @@ pdf_drop_dict(fz_context *ctx, pdf_obj *obj)
void
pdf_drop_obj(fz_context *ctx, pdf_obj *obj)
{
- if (obj >= PDF_OBJ__LIMIT)
+ if (obj >= PDF_OBJ_LIMIT)
{
if (fz_drop_imp16(ctx, obj, &obj->refs))
{
@@ -1713,7 +1723,7 @@ pdf_set_obj_parent(fz_context *ctx, pdf_obj *obj, int num)
{
int n, i;
- if (obj < PDF_OBJ__LIMIT)
+ if (obj < PDF_OBJ_LIMIT)
return;
switch(obj->kind)
@@ -1735,7 +1745,7 @@ pdf_set_obj_parent(fz_context *ctx, pdf_obj *obj, int num)
int pdf_obj_parent_num(fz_context *ctx, pdf_obj *obj)
{
- if (obj < PDF_OBJ__LIMIT)
+ if (obj < PDF_OBJ_LIMIT)
return 0;
switch(obj->kind)
@@ -2172,7 +2182,7 @@ void pdf_debug_obj(fz_context *ctx, pdf_obj *obj)
int pdf_obj_refs(fz_context *ctx, pdf_obj *ref)
{
- return (ref >= PDF_OBJ__LIMIT ? ref->refs : 0);
+ return (ref >= PDF_OBJ_LIMIT ? ref->refs : 0);
}
/* Convenience functions */
generated by cgit v1.2.3 (git 2.25.1) at 2024-09-10 17:12:29 +0000