Bug Summary

File:backend/tiff/tiff-document.c
Warning:line 484, column 31
The left operand of '*' is a garbage value

Annotated Source Code

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clang -cc1 -cc1 -triple x86_64-pc-linux-gnu -analyze -disable-free -clear-ast-before-backend -disable-llvm-verifier -discard-value-names -main-file-name tiff-document.c -analyzer-checker=core -analyzer-checker=apiModeling -analyzer-checker=unix -analyzer-checker=deadcode -analyzer-checker=security.insecureAPI.UncheckedReturn -analyzer-checker=security.insecureAPI.getpw -analyzer-checker=security.insecureAPI.gets -analyzer-checker=security.insecureAPI.mktemp -analyzer-checker=security.insecureAPI.mkstemp -analyzer-checker=security.insecureAPI.vfork -analyzer-checker=nullability.NullPassedToNonnull -analyzer-checker=nullability.NullReturnedFromNonnull -analyzer-output plist -w -setup-static-analyzer -mrelocation-model pic -pic-level 2 -fhalf-no-semantic-interposition -mframe-pointer=all -fmath-errno -ffp-contract=on -fno-rounding-math -mconstructor-aliases -funwind-tables=2 -target-cpu x86-64 -tune-cpu generic -debugger-tuning=gdb -fcoverage-compilation-dir=/rootdir/backend/tiff -resource-dir /usr/lib/llvm-16/lib/clang/16 -D HAVE_CONFIG_H -I . -I ../.. -I ../.. -I ../../libdocument -D CAFELOCALEDIR="/usr/share/locale" -D LECTOR_COMPILATION -I /usr/include/cairo -I /usr/include/libpng16 -I /usr/include/freetype2 -I /usr/include/pixman-1 -I /usr/include/ctk-3.0 -I /usr/include/pango-1.0 -I /usr/include/glib-2.0 -I /usr/lib/x86_64-linux-gnu/glib-2.0/include -I /usr/include/sysprof-6 -I /usr/include/harfbuzz -I /usr/include/libmount -I /usr/include/blkid -I /usr/include/fribidi -I /usr/include/gdk-pixbuf-2.0 -I /usr/include/x86_64-linux-gnu -I /usr/include/webp -I /usr/include/gio-unix-2.0 -I /usr/include/atk-1.0 -I /usr/include/at-spi2-atk/2.0 -I /usr/include/at-spi-2.0 -I /usr/include/dbus-1.0 -I /usr/lib/x86_64-linux-gnu/dbus-1.0/include -D CDK_MULTIHEAD_SAFE -D CTK_MULTIHEAD_SAFE -D PIC -internal-isystem /usr/lib/llvm-16/lib/clang/16/include -internal-isystem /usr/local/include -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/13/../../../../x86_64-linux-gnu/include -internal-externc-isystem /usr/include/x86_64-linux-gnu -internal-externc-isystem /include -internal-externc-isystem /usr/include -fdebug-compilation-dir=/rootdir/backend/tiff -ferror-limit 19 -fgnuc-version=4.2.1 -analyzer-checker deadcode.DeadStores -analyzer-checker alpha.deadcode.UnreachableCode -analyzer-checker alpha.core.CastSize -analyzer-checker alpha.core.CastToStruct -analyzer-checker alpha.core.IdenticalExpr -analyzer-checker alpha.core.SizeofPtr -analyzer-checker alpha.security.ArrayBoundV2 -analyzer-checker alpha.security.MallocOverflow -analyzer-checker alpha.security.ReturnPtrRange -analyzer-checker alpha.unix.SimpleStream -analyzer-checker alpha.unix.cstring.BufferOverlap -analyzer-checker alpha.unix.cstring.NotNullTerminated -analyzer-checker alpha.unix.cstring.OutOfBounds -analyzer-checker alpha.core.FixedAddr -analyzer-output=html -faddrsig -D__GCC_HAVE_DWARF2_CFI_ASM=1 -o /rootdir/html-report/2024-08-06-102901-54329-1 -x c tiff-document.c
1/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8; c-indent-level: 8 -*- */
2/*
3 * Copyright (C) 2005, Jonathan Blandford <jrb@gnome.org>
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2, or (at your option)
8 * any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
18 */
19
20/* FIXME: Should probably buffer calls to libtiff with TIFFSetWarningHandler
21 */
22
23#include "config.h"
24
25#include <config.h>
26#include <stdio.h>
27#include <glib.h>
28#include <glib/gi18n-lib.h>
29
30#include "tiffio.h"
31#include "tiff2ps.h"
32#include "tiff-document.h"
33#include "ev-document-misc.h"
34#include "ev-document-thumbnails.h"
35#include "ev-file-exporter.h"
36#include "ev-file-helpers.h"
37
38struct _TiffDocumentClass
39{
40 EvDocumentClass parent_class;
41};
42
43struct _TiffDocument
44{
45 EvDocument parent_instance;
46
47 TIFF *tiff;
48 gint n_pages;
49 TIFF2PSContext *ps_export_ctx;
50
51 gchar *uri;
52};
53
54typedef struct _TiffDocumentClass TiffDocumentClass;
55
56static void tiff_document_document_thumbnails_iface_init (EvDocumentThumbnailsInterface *iface);
57static void tiff_document_document_file_exporter_iface_init (EvFileExporterInterface *iface);
58
59EV_BACKEND_REGISTER_WITH_CODE (TiffDocument, tiff_document,static GType g_define_type_id = 0; GType tiff_document_get_type
(void) { return g_define_type_id; } static void tiff_document_init
(TiffDocument *self); static void tiff_document_class_init (
TiffDocumentClass *klass); static gpointer tiff_document_parent_class
= ((void*)0); static void tiff_document_class_intern_init (gpointer
klass) { tiff_document_parent_class = g_type_class_peek_parent
(klass); tiff_document_class_init ((TiffDocumentClass *) klass
); } __attribute__((visibility("default"))) GType register_lector_backend
(GTypeModule *module) { const GTypeInfo our_info = { sizeof (
TiffDocumentClass), ((void*)0), ((void*)0), (GClassInitFunc) tiff_document_class_intern_init
, ((void*)0), ((void*)0), sizeof (TiffDocument), 0, (GInstanceInitFunc
) tiff_document_init }; bindtextdomain ("lector", "/usr/share/locale"
); bind_textdomain_codeset ("lector", "UTF-8"); g_define_type_id
= g_type_module_register_type (module, (ev_document_get_type
()), "TiffDocument", &our_info, (GTypeFlags)0); { { const
GInterfaceInfo g_implement_interface_info = { (GInterfaceInitFunc
) tiff_document_document_thumbnails_iface_init, ((void*)0), (
(void*)0) }; g_type_module_add_interface (module, g_define_type_id
, (ev_document_thumbnails_get_type ()), &g_implement_interface_info
); }; { const GInterfaceInfo g_implement_interface_info = { (
GInterfaceInitFunc) tiff_document_document_file_exporter_iface_init
, ((void*)0), ((void*)0) }; g_type_module_add_interface (module
, g_define_type_id, (ev_file_exporter_get_type ()), &g_implement_interface_info
); }; } return g_define_type_id; }
60 {static GType g_define_type_id = 0; GType tiff_document_get_type
(void) { return g_define_type_id; } static void tiff_document_init
(TiffDocument *self); static void tiff_document_class_init (
TiffDocumentClass *klass); static gpointer tiff_document_parent_class
= ((void*)0); static void tiff_document_class_intern_init (gpointer
klass) { tiff_document_parent_class = g_type_class_peek_parent
(klass); tiff_document_class_init ((TiffDocumentClass *) klass
); } __attribute__((visibility("default"))) GType register_lector_backend
(GTypeModule *module) { const GTypeInfo our_info = { sizeof (
TiffDocumentClass), ((void*)0), ((void*)0), (GClassInitFunc) tiff_document_class_intern_init
, ((void*)0), ((void*)0), sizeof (TiffDocument), 0, (GInstanceInitFunc
) tiff_document_init }; bindtextdomain ("lector", "/usr/share/locale"
); bind_textdomain_codeset ("lector", "UTF-8"); g_define_type_id
= g_type_module_register_type (module, (ev_document_get_type
()), "TiffDocument", &our_info, (GTypeFlags)0); { { const
GInterfaceInfo g_implement_interface_info = { (GInterfaceInitFunc
) tiff_document_document_thumbnails_iface_init, ((void*)0), (
(void*)0) }; g_type_module_add_interface (module, g_define_type_id
, (ev_document_thumbnails_get_type ()), &g_implement_interface_info
); }; { const GInterfaceInfo g_implement_interface_info = { (
GInterfaceInitFunc) tiff_document_document_file_exporter_iface_init
, ((void*)0), ((void*)0) }; g_type_module_add_interface (module
, g_define_type_id, (ev_file_exporter_get_type ()), &g_implement_interface_info
); }; } return g_define_type_id; }
61 EV_BACKEND_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_THUMBNAILS,static GType g_define_type_id = 0; GType tiff_document_get_type
(void) { return g_define_type_id; } static void tiff_document_init
(TiffDocument *self); static void tiff_document_class_init (
TiffDocumentClass *klass); static gpointer tiff_document_parent_class
= ((void*)0); static void tiff_document_class_intern_init (gpointer
klass) { tiff_document_parent_class = g_type_class_peek_parent
(klass); tiff_document_class_init ((TiffDocumentClass *) klass
); } __attribute__((visibility("default"))) GType register_lector_backend
(GTypeModule *module) { const GTypeInfo our_info = { sizeof (
TiffDocumentClass), ((void*)0), ((void*)0), (GClassInitFunc) tiff_document_class_intern_init
, ((void*)0), ((void*)0), sizeof (TiffDocument), 0, (GInstanceInitFunc
) tiff_document_init }; bindtextdomain ("lector", "/usr/share/locale"
); bind_textdomain_codeset ("lector", "UTF-8"); g_define_type_id
= g_type_module_register_type (module, (ev_document_get_type
()), "TiffDocument", &our_info, (GTypeFlags)0); { { const
GInterfaceInfo g_implement_interface_info = { (GInterfaceInitFunc
) tiff_document_document_thumbnails_iface_init, ((void*)0), (
(void*)0) }; g_type_module_add_interface (module, g_define_type_id
, (ev_document_thumbnails_get_type ()), &g_implement_interface_info
); }; { const GInterfaceInfo g_implement_interface_info = { (
GInterfaceInitFunc) tiff_document_document_file_exporter_iface_init
, ((void*)0), ((void*)0) }; g_type_module_add_interface (module
, g_define_type_id, (ev_file_exporter_get_type ()), &g_implement_interface_info
); }; } return g_define_type_id; }
62 tiff_document_document_thumbnails_iface_init);static GType g_define_type_id = 0; GType tiff_document_get_type
(void) { return g_define_type_id; } static void tiff_document_init
(TiffDocument *self); static void tiff_document_class_init (
TiffDocumentClass *klass); static gpointer tiff_document_parent_class
= ((void*)0); static void tiff_document_class_intern_init (gpointer
klass) { tiff_document_parent_class = g_type_class_peek_parent
(klass); tiff_document_class_init ((TiffDocumentClass *) klass
); } __attribute__((visibility("default"))) GType register_lector_backend
(GTypeModule *module) { const GTypeInfo our_info = { sizeof (
TiffDocumentClass), ((void*)0), ((void*)0), (GClassInitFunc) tiff_document_class_intern_init
, ((void*)0), ((void*)0), sizeof (TiffDocument), 0, (GInstanceInitFunc
) tiff_document_init }; bindtextdomain ("lector", "/usr/share/locale"
); bind_textdomain_codeset ("lector", "UTF-8"); g_define_type_id
= g_type_module_register_type (module, (ev_document_get_type
()), "TiffDocument", &our_info, (GTypeFlags)0); { { const
GInterfaceInfo g_implement_interface_info = { (GInterfaceInitFunc
) tiff_document_document_thumbnails_iface_init, ((void*)0), (
(void*)0) }; g_type_module_add_interface (module, g_define_type_id
, (ev_document_thumbnails_get_type ()), &g_implement_interface_info
); }; { const GInterfaceInfo g_implement_interface_info = { (
GInterfaceInitFunc) tiff_document_document_file_exporter_iface_init
, ((void*)0), ((void*)0) }; g_type_module_add_interface (module
, g_define_type_id, (ev_file_exporter_get_type ()), &g_implement_interface_info
); }; } return g_define_type_id; }
63 EV_BACKEND_IMPLEMENT_INTERFACE (EV_TYPE_FILE_EXPORTER,static GType g_define_type_id = 0; GType tiff_document_get_type
(void) { return g_define_type_id; } static void tiff_document_init
(TiffDocument *self); static void tiff_document_class_init (
TiffDocumentClass *klass); static gpointer tiff_document_parent_class
= ((void*)0); static void tiff_document_class_intern_init (gpointer
klass) { tiff_document_parent_class = g_type_class_peek_parent
(klass); tiff_document_class_init ((TiffDocumentClass *) klass
); } __attribute__((visibility("default"))) GType register_lector_backend
(GTypeModule *module) { const GTypeInfo our_info = { sizeof (
TiffDocumentClass), ((void*)0), ((void*)0), (GClassInitFunc) tiff_document_class_intern_init
, ((void*)0), ((void*)0), sizeof (TiffDocument), 0, (GInstanceInitFunc
) tiff_document_init }; bindtextdomain ("lector", "/usr/share/locale"
); bind_textdomain_codeset ("lector", "UTF-8"); g_define_type_id
= g_type_module_register_type (module, (ev_document_get_type
()), "TiffDocument", &our_info, (GTypeFlags)0); { { const
GInterfaceInfo g_implement_interface_info = { (GInterfaceInitFunc
) tiff_document_document_thumbnails_iface_init, ((void*)0), (
(void*)0) }; g_type_module_add_interface (module, g_define_type_id
, (ev_document_thumbnails_get_type ()), &g_implement_interface_info
); }; { const GInterfaceInfo g_implement_interface_info = { (
GInterfaceInitFunc) tiff_document_document_file_exporter_iface_init
, ((void*)0), ((void*)0) }; g_type_module_add_interface (module
, g_define_type_id, (ev_file_exporter_get_type ()), &g_implement_interface_info
); }; } return g_define_type_id; }
64 tiff_document_document_file_exporter_iface_init);static GType g_define_type_id = 0; GType tiff_document_get_type
(void) { return g_define_type_id; } static void tiff_document_init
(TiffDocument *self); static void tiff_document_class_init (
TiffDocumentClass *klass); static gpointer tiff_document_parent_class
= ((void*)0); static void tiff_document_class_intern_init (gpointer
klass) { tiff_document_parent_class = g_type_class_peek_parent
(klass); tiff_document_class_init ((TiffDocumentClass *) klass
); } __attribute__((visibility("default"))) GType register_lector_backend
(GTypeModule *module) { const GTypeInfo our_info = { sizeof (
TiffDocumentClass), ((void*)0), ((void*)0), (GClassInitFunc) tiff_document_class_intern_init
, ((void*)0), ((void*)0), sizeof (TiffDocument), 0, (GInstanceInitFunc
) tiff_document_init }; bindtextdomain ("lector", "/usr/share/locale"
); bind_textdomain_codeset ("lector", "UTF-8"); g_define_type_id
= g_type_module_register_type (module, (ev_document_get_type
()), "TiffDocument", &our_info, (GTypeFlags)0); { { const
GInterfaceInfo g_implement_interface_info = { (GInterfaceInitFunc
) tiff_document_document_thumbnails_iface_init, ((void*)0), (
(void*)0) }; g_type_module_add_interface (module, g_define_type_id
, (ev_document_thumbnails_get_type ()), &g_implement_interface_info
); }; { const GInterfaceInfo g_implement_interface_info = { (
GInterfaceInitFunc) tiff_document_document_file_exporter_iface_init
, ((void*)0), ((void*)0) }; g_type_module_add_interface (module
, g_define_type_id, (ev_file_exporter_get_type ()), &g_implement_interface_info
); }; } return g_define_type_id; }
65 })static GType g_define_type_id = 0; GType tiff_document_get_type
(void) { return g_define_type_id; } static void tiff_document_init
(TiffDocument *self); static void tiff_document_class_init (
TiffDocumentClass *klass); static gpointer tiff_document_parent_class
= ((void*)0); static void tiff_document_class_intern_init (gpointer
klass) { tiff_document_parent_class = g_type_class_peek_parent
(klass); tiff_document_class_init ((TiffDocumentClass *) klass
); } __attribute__((visibility("default"))) GType register_lector_backend
(GTypeModule *module) { const GTypeInfo our_info = { sizeof (
TiffDocumentClass), ((void*)0), ((void*)0), (GClassInitFunc) tiff_document_class_intern_init
, ((void*)0), ((void*)0), sizeof (TiffDocument), 0, (GInstanceInitFunc
) tiff_document_init }; bindtextdomain ("lector", "/usr/share/locale"
); bind_textdomain_codeset ("lector", "UTF-8"); g_define_type_id
= g_type_module_register_type (module, (ev_document_get_type
()), "TiffDocument", &our_info, (GTypeFlags)0); { { const
GInterfaceInfo g_implement_interface_info = { (GInterfaceInitFunc
) tiff_document_document_thumbnails_iface_init, ((void*)0), (
(void*)0) }; g_type_module_add_interface (module, g_define_type_id
, (ev_document_thumbnails_get_type ()), &g_implement_interface_info
); }; { const GInterfaceInfo g_implement_interface_info = { (
GInterfaceInitFunc) tiff_document_document_file_exporter_iface_init
, ((void*)0), ((void*)0) }; g_type_module_add_interface (module
, g_define_type_id, (ev_file_exporter_get_type ()), &g_implement_interface_info
); }; } return g_define_type_id; };
66
67static TIFFErrorHandler orig_error_handler = NULL((void*)0);
68static TIFFErrorHandler orig_warning_handler = NULL((void*)0);
69
70static void
71push_handlers (void)
72{
73 orig_error_handler = TIFFSetErrorHandler (NULL((void*)0));
74 orig_warning_handler = TIFFSetWarningHandler (NULL((void*)0));
75}
76
77static void
78pop_handlers (void)
79{
80 TIFFSetErrorHandler (orig_error_handler);
81 TIFFSetWarningHandler (orig_warning_handler);
82}
83
84static gboolean
85tiff_document_load (EvDocument *document,
86 const char *uri,
87 GError **error)
88{
89 TiffDocument *tiff_document = TIFF_DOCUMENT (document)((((TiffDocument*) (void *) g_type_check_instance_cast ((GTypeInstance
*) ((document)), ((tiff_document_get_type ()))))));
90 gchar *filename;
91 TIFF *tiff;
92
93 filename = g_filename_from_uri (uri, NULL((void*)0), error);
94 if (!filename)
95 return FALSE(0);
96
97 push_handlers ();
98
99 tiff = TIFFOpen (filename, "r");
100 if (tiff) {
101 guint32 w, h;
102
103 /* FIXME: unused data? why bother here */
104 TIFFGetField(tiff, TIFFTAG_IMAGEWIDTH256, &w);
105 TIFFGetField(tiff, TIFFTAG_IMAGELENGTH257, &h);
106 }
107
108 if (!tiff) {
109 pop_handlers ();
110
111 g_set_error_literal (error,
112 EV_DOCUMENT_ERRORev_document_error_quark (),
113 EV_DOCUMENT_ERROR_INVALID,
114 _("Invalid document")((char *) g_dgettext ("lector", "Invalid document")));
115
116 g_free (filename);
117 return FALSE(0);
118 }
119
120 tiff_document->tiff = tiff;
121 g_free (tiff_document->uri);
122 g_free (filename);
123 tiff_document->uri = g_strdup (uri)g_strdup_inline (uri);
124
125 pop_handlers ();
126 return TRUE(!(0));
127}
128
129static gboolean
130tiff_document_save (EvDocument *document,
131 const char *uri,
132 GError **error)
133{
134 TiffDocument *tiff_document = TIFF_DOCUMENT (document)((((TiffDocument*) (void *) g_type_check_instance_cast ((GTypeInstance
*) ((document)), ((tiff_document_get_type ()))))));
135
136 return ev_xfer_uri_simple (tiff_document->uri, uri, error);
137}
138
139static int
140tiff_document_get_n_pages (EvDocument *document)
141{
142 TiffDocument *tiff_document = TIFF_DOCUMENT (document)((((TiffDocument*) (void *) g_type_check_instance_cast ((GTypeInstance
*) ((document)), ((tiff_document_get_type ()))))));
143
144 g_return_val_if_fail (TIFF_IS_DOCUMENT (document), 0)do { if (((((__extension__ ({ GTypeInstance *__inst = (GTypeInstance
*) ((document)); GType __t = ((tiff_document_get_type ())); gboolean
__r; if (!__inst) __r = (0); else if (__inst->g_class &&
__inst->g_class->g_type == __t) __r = (!(0)); else __r
= g_type_check_instance_is_a (__inst, __t); __r; })))))) { }
else { g_return_if_fail_warning (((gchar*) 0), ((const char*
) (__func__)), "TIFF_IS_DOCUMENT (document)"); return (0); } }
while (0);
145 g_return_val_if_fail (tiff_document->tiff != NULL, 0)do { if ((tiff_document->tiff != ((void*)0))) { } else { g_return_if_fail_warning
(((gchar*) 0), ((const char*) (__func__)), "tiff_document->tiff != NULL"
); return (0); } } while (0);
146
147 if (tiff_document->n_pages == -1) {
148 push_handlers ();
149 tiff_document->n_pages = 0;
150
151 do {
152 tiff_document->n_pages ++;
153 }
154 while (TIFFReadDirectory (tiff_document->tiff));
155 pop_handlers ();
156 }
157
158 return tiff_document->n_pages;
159}
160
161static void
162tiff_document_get_resolution (TiffDocument *tiff_document,
163 gfloat *x_res,
164 gfloat *y_res)
165{
166 gfloat x = 72.0, y = 72.0;
167 gushort unit;
168
169 if (TIFFGetField (tiff_document->tiff, TIFFTAG_XRESOLUTION282, &x) &&
170 TIFFGetField (tiff_document->tiff, TIFFTAG_YRESOLUTION283, &y)) {
171 if (TIFFGetFieldDefaulted (tiff_document->tiff, TIFFTAG_RESOLUTIONUNIT296, &unit)) {
172 if (unit == RESUNIT_CENTIMETER3) {
173 x *= 2.54;
174 y *= 2.54;
175 }
176 }
177 }
178
179 *x_res = x;
180 *y_res = y;
181}
182
183static void
184tiff_document_get_page_size (EvDocument *document,
185 EvPage *page,
186 double *width,
187 double *height)
188{
189 guint32 w, h;
190 gfloat x_res, y_res;
191 TiffDocument *tiff_document = TIFF_DOCUMENT (document)((((TiffDocument*) (void *) g_type_check_instance_cast ((GTypeInstance
*) ((document)), ((tiff_document_get_type ()))))));
192
193 g_return_if_fail (TIFF_IS_DOCUMENT (document))do { if (((((__extension__ ({ GTypeInstance *__inst = (GTypeInstance
*) ((document)); GType __t = ((tiff_document_get_type ())); gboolean
__r; if (!__inst) __r = (0); else if (__inst->g_class &&
__inst->g_class->g_type == __t) __r = (!(0)); else __r
= g_type_check_instance_is_a (__inst, __t); __r; })))))) { }
else { g_return_if_fail_warning (((gchar*) 0), ((const char*
) (__func__)), "TIFF_IS_DOCUMENT (document)"); return; } } while
(0);
3
←
Assuming '__inst' is non-null
→
4
←
Taking false branch
→
5
←
Assuming field 'g_class' is null
→
6
←
Assuming the condition is true
→
7
←
Taking true branch
→
8
←
Loop condition is false. Exiting loop
→
194 g_return_if_fail (tiff_document->tiff != NULL)do { if ((tiff_document->tiff != ((void*)0))) { } else { g_return_if_fail_warning
(((gchar*) 0), ((const char*) (__func__)), "tiff_document->tiff != NULL"
); return; } } while (0);
9
←
Assuming field 'tiff' is not equal to null
→
10
←
Taking true branch
→
11
←
Loop condition is false. Exiting loop
→
195
196 push_handlers ();
197 if (TIFFSetDirectory (tiff_document->tiff, page->index) != 1) {
12
←
Assuming the condition is true
→
13
←
Taking true branch
→
198 pop_handlers ();
199 return;
14
←
Returning without writing to '*width'
→
200 }
201
202 TIFFGetField (tiff_document->tiff, TIFFTAG_IMAGEWIDTH256, &w);
203 TIFFGetField (tiff_document->tiff, TIFFTAG_IMAGELENGTH257, &h);
204 tiff_document_get_resolution (tiff_document, &x_res, &y_res);
205 h = h * (x_res / y_res);
206
207 *width = w;
208 *height = h;
209
210 pop_handlers ();
211}
212
213static cairo_surface_t *
214tiff_document_render (EvDocument *document,
215 EvRenderContext *rc)
216{
217 TiffDocument *tiff_document = TIFF_DOCUMENT (document)((((TiffDocument*) (void *) g_type_check_instance_cast ((GTypeInstance
*) ((document)), ((tiff_document_get_type ()))))));
218 int width, height;
219 float x_res, y_res;
220 gint rowstride, bytes;
221 guchar *pixels = NULL((void*)0);
222 guchar *p;
223 int orientation;
224 cairo_surface_t *surface;
225 cairo_surface_t *rotated_surface;
226 static const cairo_user_data_key_t key;
227
228 g_return_val_if_fail (TIFF_IS_DOCUMENT (document), NULL)do { if (((((__extension__ ({ GTypeInstance *__inst = (GTypeInstance
*) ((document)); GType __t = ((tiff_document_get_type ())); gboolean
__r; if (!__inst) __r = (0); else if (__inst->g_class &&
__inst->g_class->g_type == __t) __r = (!(0)); else __r
= g_type_check_instance_is_a (__inst, __t); __r; })))))) { }
else { g_return_if_fail_warning (((gchar*) 0), ((const char*
) (__func__)), "TIFF_IS_DOCUMENT (document)"); return (((void
*)0)); } } while (0);
229 g_return_val_if_fail (tiff_document->tiff != NULL, NULL)do { if ((tiff_document->tiff != ((void*)0))) { } else { g_return_if_fail_warning
(((gchar*) 0), ((const char*) (__func__)), "tiff_document->tiff != NULL"
); return (((void*)0)); } } while (0);
230
231 push_handlers ();
232 if (TIFFSetDirectory (tiff_document->tiff, rc->page->index) != 1) {
233 pop_handlers ();
234 g_warning("Failed to select page %d", rc->page->index);
235 return NULL((void*)0);
236 }
237
238 if (!TIFFGetField (tiff_document->tiff, TIFFTAG_IMAGEWIDTH256, &width)) {
239 pop_handlers ();
240 g_warning("Failed to read image width");
241 return NULL((void*)0);
242 }
243
244 if (! TIFFGetField (tiff_document->tiff, TIFFTAG_IMAGELENGTH257, &height)) {
245 pop_handlers ();
246 g_warning("Failed to read image height");
247 return NULL((void*)0);
248 }
249
250 if (! TIFFGetField (tiff_document->tiff, TIFFTAG_ORIENTATION274, &orientation)) {
251 orientation = ORIENTATION_TOPLEFT1;
252 }
253
254 tiff_document_get_resolution (tiff_document, &x_res, &y_res);
255
256 pop_handlers ();
257
258 /* Sanity check the doc */
259 if (width <= 0 || height <= 0) {
260 g_warning("Invalid width or height.");
261 return NULL((void*)0);
262 }
263
264 rowstride = cairo_format_stride_for_width (CAIRO_FORMAT_RGB24, width);
265 if (rowstride / 4 != width) {
266 g_warning("Overflow while rendering document.");
267 /* overflow, or cairo was changed in an unsupported way */
268 return NULL((void*)0);
269 }
270
271 if (height >= INT_MAX2147483647 / rowstride) {
272 g_warning("Overflow while rendering document.");
273 /* overflow */
274 return NULL((void*)0);
275 }
276
277 bytes = height * rowstride;
278
279 pixels = g_try_malloc (bytes);
280 if (!pixels) {
281 g_warning("Failed to allocate memory for rendering.");
282 return NULL((void*)0);
283 }
284
285 if (!TIFFReadRGBAImageOriented (tiff_document->tiff,
286 width, height,
287 (uint32_t *)pixels,
288 orientation, 0)) {
289 g_warning ("Failed to read TIFF image.");
290 g_free (pixels);
291 return NULL((void*)0);
292 }
293
294 surface = cairo_image_surface_create_for_data (pixels,
295 CAIRO_FORMAT_RGB24,
296 width, height,
297 rowstride);
298 cairo_surface_set_user_data (surface, &key,
299 pixels, (cairo_destroy_func_t)g_free);
300 pop_handlers ();
301
302 /* Convert the format returned by libtiff to
303 * what cairo expects
304 */
305 p = pixels;
306 while (p < pixels + bytes) {
307 guint32 *pixel = (guint32*)p;
308 guint8 r = TIFFGetR(*pixel)((*pixel)&0xff);
309 guint8 g = TIFFGetG(*pixel)(((*pixel) >> 8) & 0xff);
310 guint8 b = TIFFGetB(*pixel)(((*pixel) >> 16) & 0xff);
311 guint8 a = TIFFGetA(*pixel)(((*pixel) >> 24) & 0xff);
312
313 *pixel = (a << 24) | (r << 16) | (g << 8) | b;
314
315 p += 4;
316 }
317
318 rotated_surface = ev_document_misc_surface_rotate_and_scale (surface,
319 (width * rc->scale) + 0.5,
320 (height * rc->scale * (x_res / y_res)) + 0.5,
321 rc->rotation);
322 cairo_surface_destroy (surface);
323
324 return rotated_surface;
325}
326
327static GdkPixbuf *
328tiff_document_render_pixbuf (EvDocument *document,
329 EvRenderContext *rc)
330{
331 TiffDocument *tiff_document = TIFF_DOCUMENT (document)((((TiffDocument*) (void *) g_type_check_instance_cast ((GTypeInstance
*) ((document)), ((tiff_document_get_type ()))))));
332 int width, height;
333 float x_res, y_res;
334 gint rowstride, bytes;
335 guchar *pixels = NULL((void*)0);
336 GdkPixbuf *pixbuf;
337 GdkPixbuf *scaled_pixbuf;
338 GdkPixbuf *rotated_pixbuf;
339
340 push_handlers ();
341 if (TIFFSetDirectory (tiff_document->tiff, rc->page->index) != 1) {
342 pop_handlers ();
343 return NULL((void*)0);
344 }
345
346 if (!TIFFGetField (tiff_document->tiff, TIFFTAG_IMAGEWIDTH256, &width)) {
347 pop_handlers ();
348 return NULL((void*)0);
349 }
350
351 if (! TIFFGetField (tiff_document->tiff, TIFFTAG_IMAGELENGTH257, &height)) {
352 pop_handlers ();
353 return NULL((void*)0);
354 }
355
356 tiff_document_get_resolution (tiff_document, &x_res, &y_res);
357
358 pop_handlers ();
359
360 /* Sanity check the doc */
361 if (width <= 0 || height <= 0)
362 return NULL((void*)0);
363
364
365 if (width >= INT_MAX2147483647 / 4)
366 /* overflow */
367 return NULL((void*)0);
368
369 rowstride = width * 4;
370
371 if (height >= INT_MAX2147483647 / rowstride)
372 /* overflow */
373 return NULL((void*)0);
374 bytes = height * rowstride;
375
376 pixels = g_try_malloc (bytes);
377 if (!pixels)
378 return NULL((void*)0);
379
380 if (!TIFFReadRGBAImageOriented (tiff_document->tiff,
381 width, height,
382 (uint32_t *)pixels,
383 ORIENTATION_TOPLEFT1, 0)) {
384 g_free (pixels);
385 return NULL((void*)0);
386 }
387
388 pixbuf = gdk_pixbuf_new_from_data (pixels, GDK_COLORSPACE_RGB, TRUE(!(0)), 8,
389 width, height, rowstride,
390 (GdkPixbufDestroyNotify) g_free, NULL((void*)0));
391 pop_handlers ();
392
393 scaled_pixbuf = gdk_pixbuf_scale_simple (pixbuf,
394 width * rc->scale,
395 height * rc->scale * (x_res / y_res),
396 GDK_INTERP_BILINEAR);
397 g_object_unref (pixbuf);
398
399 rotated_pixbuf = gdk_pixbuf_rotate_simple (scaled_pixbuf, 360 - rc->rotation);
400 g_object_unref (scaled_pixbuf);
401
402 return rotated_pixbuf;
403}
404
405static gchar *
406tiff_document_get_page_label (EvDocument *document,
407 EvPage *page)
408{
409 TiffDocument *tiff_document = TIFF_DOCUMENT (document)((((TiffDocument*) (void *) g_type_check_instance_cast ((GTypeInstance
*) ((document)), ((tiff_document_get_type ()))))));
410 static gchar *label;
411
412 if (TIFFGetField (tiff_document->tiff, TIFFTAG_PAGENAME285, &label) &&
413 g_utf8_validate (label, -1, NULL((void*)0))) {
414 return g_strdup (label)g_strdup_inline (label);
415 }
416
417 return NULL((void*)0);
418}
419
420static void
421tiff_document_finalize (GObject *object)
422{
423 TiffDocument *tiff_document = TIFF_DOCUMENT (object)((((TiffDocument*) (void *) g_type_check_instance_cast ((GTypeInstance
*) ((object)), ((tiff_document_get_type ()))))));
424
425 if (tiff_document->tiff)
426 TIFFClose (tiff_document->tiff);
427 if (tiff_document->uri)
428 g_free (tiff_document->uri);
429
430 G_OBJECT_CLASS (tiff_document_parent_class)((((GObjectClass*) (void *) g_type_check_class_cast ((GTypeClass
*) ((tiff_document_parent_class)), (((GType) ((20) << (
2))))))))->finalize (object);
431}
432
433static void
434tiff_document_class_init (TiffDocumentClass *klass)
435{
436 GObjectClass *gobject_class = G_OBJECT_CLASS (klass)((((GObjectClass*) (void *) g_type_check_class_cast ((GTypeClass
*) ((klass)), (((GType) ((20) << (2))))))));
437 EvDocumentClass *ev_document_class = EV_DOCUMENT_CLASS (klass)((((EvDocumentClass*) (void *) g_type_check_class_cast ((GTypeClass
*) ((klass)), ((ev_document_get_type ()))))));
438
439 gobject_class->finalize = tiff_document_finalize;
440
441 ev_document_class->load = tiff_document_load;
442 ev_document_class->save = tiff_document_save;
443 ev_document_class->get_n_pages = tiff_document_get_n_pages;
444 ev_document_class->get_page_size = tiff_document_get_page_size;
445 ev_document_class->render = tiff_document_render;
446 ev_document_class->get_page_label = tiff_document_get_page_label;
447}
448
449static GdkPixbuf *
450tiff_document_thumbnails_get_thumbnail (EvDocumentThumbnails *document,
451 EvRenderContext *rc,
452 gboolean border)
453{
454 GdkPixbuf *pixbuf;
455
456 pixbuf = tiff_document_render_pixbuf (EV_DOCUMENT (document)((((EvDocument*) (void *) g_type_check_instance_cast ((GTypeInstance
*) ((document)), ((ev_document_get_type ())))))), rc);
457
458 if (border) {
459 GdkPixbuf *tmp_pixbuf = pixbuf;
460
461 pixbuf = ev_document_misc_get_thumbnail_frame (-1, -1, tmp_pixbuf);
462 g_object_unref (tmp_pixbuf);
463 }
464
465 return pixbuf;
466}
467
468static void
469tiff_document_thumbnails_get_dimensions (EvDocumentThumbnails *document,
470 EvRenderContext *rc,
471 gint *width,
472 gint *height)
473{
474 gdouble page_width, page_height;
1
'page_width' declared without an initial value
→
475
476 tiff_document_get_page_size (EV_DOCUMENT (document)((((EvDocument*) (void *) g_type_check_instance_cast ((GTypeInstance
*) ((document)), ((ev_document_get_type ())))))),
2
←
Calling 'tiff_document_get_page_size'
→
15
←
Returning from 'tiff_document_get_page_size'
→
477 rc->page,
478 &page_width, &page_height);
479
480 if (rc->rotation == 90 || rc->rotation == 270) {
16
←
Assuming field 'rotation' is not equal to 90
→
17
←
Assuming field 'rotation' is not equal to 270
→
18
←
Taking false branch
→
481 *width = (gint) (page_height * rc->scale);
482 *height = (gint) (page_width * rc->scale);
483 } else {
484 *width = (gint) (page_width * rc->scale);
19
←
The left operand of '*' is a garbage value
485 *height = (gint) (page_height * rc->scale);
486 }
487}
488
489static void
490tiff_document_document_thumbnails_iface_init (EvDocumentThumbnailsInterface *iface)
491{
492 iface->get_thumbnail = tiff_document_thumbnails_get_thumbnail;
493 iface->get_dimensions = tiff_document_thumbnails_get_dimensions;
494}
495
496/* postscript exporter implementation */
497static void
498tiff_document_file_exporter_begin (EvFileExporter *exporter,
499 EvFileExporterContext *fc)
500{
501 TiffDocument *document = TIFF_DOCUMENT (exporter)((((TiffDocument*) (void *) g_type_check_instance_cast ((GTypeInstance
*) ((exporter)), ((tiff_document_get_type ()))))));
502
503 document->ps_export_ctx = tiff2ps_context_new(fc->filename);
504}
505
506static void
507tiff_document_file_exporter_do_page (EvFileExporter *exporter, EvRenderContext *rc)
508{
509 TiffDocument *document = TIFF_DOCUMENT (exporter)((((TiffDocument*) (void *) g_type_check_instance_cast ((GTypeInstance
*) ((exporter)), ((tiff_document_get_type ()))))));
510
511 if (document->ps_export_ctx == NULL((void*)0))
512 return;
513 if (TIFFSetDirectory (document->tiff, rc->page->index) != 1)
514 return;
515 tiff2ps_process_page (document->ps_export_ctx, document->tiff,
516 0, 0, 0, 0, 0);
517}
518
519static void
520tiff_document_file_exporter_end (EvFileExporter *exporter)
521{
522 TiffDocument *document = TIFF_DOCUMENT (exporter)((((TiffDocument*) (void *) g_type_check_instance_cast ((GTypeInstance
*) ((exporter)), ((tiff_document_get_type ()))))));
523
524 if (document->ps_export_ctx == NULL((void*)0))
525 return;
526 tiff2ps_context_finalize(document->ps_export_ctx);
527}
528
529static EvFileExporterCapabilities
530tiff_document_file_exporter_get_capabilities (EvFileExporter *exporter)
531{
532 return EV_FILE_EXPORTER_CAN_PAGE_SET |
533 EV_FILE_EXPORTER_CAN_COPIES |
534 EV_FILE_EXPORTER_CAN_COLLATE |
535 EV_FILE_EXPORTER_CAN_REVERSE |
536 EV_FILE_EXPORTER_CAN_GENERATE_PS;
537}
538
539static void
540tiff_document_document_file_exporter_iface_init (EvFileExporterInterface *iface)
541{
542 iface->begin = tiff_document_file_exporter_begin;
543 iface->do_page = tiff_document_file_exporter_do_page;
544 iface->end = tiff_document_file_exporter_end;
545 iface->get_capabilities = tiff_document_file_exporter_get_capabilities;
546}
547
548static void
549tiff_document_init (TiffDocument *tiff_document)
550{
551 tiff_document->n_pages = -1;
552}