Add libexif to deps/third_party.

libexif/sources/test/test-tagtable.c

+/* test-tagtable.c
+ *
+ * Test various functions that involve the tag table.
+ *
+ * Copyright (c) 2009 Dan Fandrich <dan@coneharvesters.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful, 
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of 
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details. 
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA  02110-1301  USA.
+ */
+
+#include "config.h"
+#include <libexif/exif-tag.h>
+#include <stdio.h>
+#include <string.h>
+
+#define VALIDATE(s) if (!(s)) {printf("Test %s FAILED\n", #s); fail=1;}
+
+#define TESTBLOCK(t) {int rc = (t); fail |= rc; \
+                      if (rc) printf("%s tests FAILED\n", #t);}
+
+/* Test exif_tag_get_support_level_in_ifd */
+static int support_level(void)
+{
+    int fail = 0;
+
+    /*
+     * The tag EXIF_TAG_PLANAR_CONFIGURATION support varies greatly between
+     * data types.
+     */
+    VALIDATE(exif_tag_get_support_level_in_ifd(EXIF_TAG_PLANAR_CONFIGURATION,
+               EXIF_IFD_0, EXIF_DATA_TYPE_UNCOMPRESSED_CHUNKY) == 
+             EXIF_SUPPORT_LEVEL_OPTIONAL)
+
+    VALIDATE(exif_tag_get_support_level_in_ifd(EXIF_TAG_PLANAR_CONFIGURATION,
+               EXIF_IFD_0, EXIF_DATA_TYPE_UNCOMPRESSED_PLANAR) == 
+             EXIF_SUPPORT_LEVEL_MANDATORY)
+
+    VALIDATE(exif_tag_get_support_level_in_ifd(EXIF_TAG_PLANAR_CONFIGURATION,
+               EXIF_IFD_0, EXIF_DATA_TYPE_UNCOMPRESSED_YCC) == 
+             EXIF_SUPPORT_LEVEL_OPTIONAL)
+
+    VALIDATE(exif_tag_get_support_level_in_ifd(EXIF_TAG_PLANAR_CONFIGURATION,
+               EXIF_IFD_0, EXIF_DATA_TYPE_COMPRESSED) == 
+             EXIF_SUPPORT_LEVEL_NOT_RECORDED)
+
+    VALIDATE(exif_tag_get_support_level_in_ifd(EXIF_TAG_PLANAR_CONFIGURATION,
+               EXIF_IFD_0, EXIF_DATA_TYPE_UNKNOWN) == 
+             EXIF_SUPPORT_LEVEL_UNKNOWN)
+
+    /*
+     * The tag EXIF_TAG_YCBCR_POSITIONING support varies greatly between
+     * IFDs
+     */
+    VALIDATE(exif_tag_get_support_level_in_ifd(EXIF_TAG_YCBCR_POSITIONING,
+               EXIF_IFD_0, EXIF_DATA_TYPE_COMPRESSED) == 
+             EXIF_SUPPORT_LEVEL_MANDATORY)
+
+    VALIDATE(exif_tag_get_support_level_in_ifd(EXIF_TAG_YCBCR_POSITIONING,
+               EXIF_IFD_1, EXIF_DATA_TYPE_COMPRESSED) == 
+             EXIF_SUPPORT_LEVEL_OPTIONAL)
+
+    VALIDATE(exif_tag_get_support_level_in_ifd(EXIF_TAG_YCBCR_POSITIONING,
+               EXIF_IFD_EXIF, EXIF_DATA_TYPE_COMPRESSED) == 
+             EXIF_SUPPORT_LEVEL_NOT_RECORDED)
+
+    VALIDATE(exif_tag_get_support_level_in_ifd(EXIF_TAG_YCBCR_POSITIONING,
+               EXIF_IFD_GPS, EXIF_DATA_TYPE_COMPRESSED) == 
+             EXIF_SUPPORT_LEVEL_NOT_RECORDED)
+
+    VALIDATE(exif_tag_get_support_level_in_ifd(EXIF_TAG_YCBCR_POSITIONING,
+               EXIF_IFD_INTEROPERABILITY, EXIF_DATA_TYPE_COMPRESSED) == 
+             EXIF_SUPPORT_LEVEL_NOT_RECORDED)
+
+
+    /*
+     * The tag EXIF_TAG_GPS_VERSION_ID has value 0 which should NOT be
+     * treated specially
+     */
+    VALIDATE(exif_tag_get_support_level_in_ifd(EXIF_TAG_GPS_VERSION_ID,
+               EXIF_IFD_GPS, EXIF_DATA_TYPE_COMPRESSED) == 
+             EXIF_SUPPORT_LEVEL_OPTIONAL)
+
+    VALIDATE(exif_tag_get_support_level_in_ifd(EXIF_TAG_GPS_VERSION_ID,
+               EXIF_IFD_GPS, EXIF_DATA_TYPE_UNKNOWN) == 
+             EXIF_SUPPORT_LEVEL_OPTIONAL)
+
+    VALIDATE(exif_tag_get_support_level_in_ifd(EXIF_TAG_GPS_VERSION_ID,
+               EXIF_IFD_0, EXIF_DATA_TYPE_COMPRESSED) == 
+             EXIF_SUPPORT_LEVEL_NOT_RECORDED)
+
+    VALIDATE(exif_tag_get_support_level_in_ifd(EXIF_TAG_GPS_VERSION_ID,
+               EXIF_IFD_0, EXIF_DATA_TYPE_UNKNOWN) == 
+             EXIF_SUPPORT_LEVEL_UNKNOWN)
+
+    /* The unused tag 0xffff should NOT be treated specially */
+    VALIDATE(exif_tag_get_support_level_in_ifd(0xffff,
+               EXIF_IFD_0, EXIF_DATA_TYPE_UNKNOWN) == 
+             EXIF_SUPPORT_LEVEL_UNKNOWN)
+
+    VALIDATE(exif_tag_get_support_level_in_ifd(0xffff,
+               EXIF_IFD_0, EXIF_DATA_TYPE_COMPRESSED) == 
+             EXIF_SUPPORT_LEVEL_NOT_RECORDED)
+
+    /*
+     * The tag EXIF_TAG_DOCUMENT_NAME isn't in the EXIF 2.2 standard but
+     * it exists in the tag table, which causes it to show up as unknown
+     * instead of not recorded.
+     */
+    VALIDATE(exif_tag_get_support_level_in_ifd(EXIF_TAG_DOCUMENT_NAME,
+               EXIF_IFD_0, EXIF_DATA_TYPE_UNKNOWN) == 
+             EXIF_SUPPORT_LEVEL_UNKNOWN)
+
+    VALIDATE(exif_tag_get_support_level_in_ifd(EXIF_TAG_DOCUMENT_NAME,
+               EXIF_IFD_1, EXIF_DATA_TYPE_UNCOMPRESSED_CHUNKY) == 
+             EXIF_SUPPORT_LEVEL_UNKNOWN)
+
+
+    /*
+     * The tag number for EXIF_TAG_INTEROPERABILITY_INDEX (1) exists in both
+     * IFD Interoperability and IFD GPS (as EXIF_TAG_GPS_LATITUDE_REF) so
+     * there are two entries in the table.
+     */
+    VALIDATE(exif_tag_get_support_level_in_ifd(EXIF_TAG_INTEROPERABILITY_INDEX,
+               EXIF_IFD_INTEROPERABILITY, EXIF_DATA_TYPE_COMPRESSED) == 
+             EXIF_SUPPORT_LEVEL_OPTIONAL)
+
+    VALIDATE(exif_tag_get_support_level_in_ifd(EXIF_TAG_INTEROPERABILITY_INDEX,
+               EXIF_IFD_INTEROPERABILITY, EXIF_DATA_TYPE_UNKNOWN) == 
+             EXIF_SUPPORT_LEVEL_OPTIONAL)
+
+    VALIDATE(exif_tag_get_support_level_in_ifd(EXIF_TAG_INTEROPERABILITY_INDEX,
+               EXIF_IFD_0, EXIF_DATA_TYPE_COMPRESSED) == 
+             EXIF_SUPPORT_LEVEL_NOT_RECORDED)
+
+    VALIDATE(exif_tag_get_support_level_in_ifd(EXIF_TAG_INTEROPERABILITY_INDEX,
+               EXIF_IFD_0, EXIF_DATA_TYPE_UNKNOWN) == 
+             EXIF_SUPPORT_LEVEL_UNKNOWN)
+
+    VALIDATE(exif_tag_get_support_level_in_ifd(EXIF_TAG_GPS_LATITUDE_REF,
+               EXIF_IFD_GPS, EXIF_DATA_TYPE_COMPRESSED) == 
+             EXIF_SUPPORT_LEVEL_OPTIONAL)
+
+    VALIDATE(exif_tag_get_support_level_in_ifd(EXIF_TAG_GPS_LATITUDE_REF,
+               EXIF_IFD_GPS, EXIF_DATA_TYPE_UNKNOWN) == 
+             EXIF_SUPPORT_LEVEL_OPTIONAL)
+
+    /* The result of an unknown IFD should always be unknown */
+    VALIDATE(exif_tag_get_support_level_in_ifd(EXIF_TAG_EXIF_VERSION,
+               EXIF_IFD_COUNT, EXIF_DATA_TYPE_UNKNOWN) == 
+             EXIF_SUPPORT_LEVEL_UNKNOWN)
+
+    VALIDATE(exif_tag_get_support_level_in_ifd(EXIF_TAG_EXIF_VERSION,
+               EXIF_IFD_COUNT, EXIF_DATA_TYPE_COMPRESSED) == 
+             EXIF_SUPPORT_LEVEL_UNKNOWN)
+
+    return fail;
+}
+
+/* Test exif_tag_get_name_in_ifd  */
+static int name(void)
+{
+    int fail = 0;
+
+    /*
+     * The tag EXIF_TAG_GPS_VERSION_ID has value 0 which should NOT be
+     * treated specially
+     */
+    VALIDATE(!strcmp(exif_tag_get_name_in_ifd(
+                        EXIF_TAG_GPS_VERSION_ID, EXIF_IFD_GPS), 
+                     "GPSVersionID"))
+
+    VALIDATE(exif_tag_get_name_in_ifd(
+                        EXIF_TAG_GPS_VERSION_ID, EXIF_IFD_0) == NULL)
+
+    /*
+     * The tag number for EXIF_TAG_INTEROPERABILITY_INDEX (1) exists in both
+     * IFD Interoperability and IFD GPS (as EXIF_TAG_GPS_LATITUDE_REF) so
+     * there are two entries in the table.
+     */
+    VALIDATE(!strcmp(exif_tag_get_name_in_ifd(
+                EXIF_TAG_INTEROPERABILITY_INDEX, EXIF_IFD_INTEROPERABILITY), 
+                     "InteroperabilityIndex"))
+
+    VALIDATE(!strcmp(exif_tag_get_name_in_ifd(
+                        EXIF_TAG_GPS_LATITUDE_REF, EXIF_IFD_GPS), 
+                     "GPSLatitudeRef"))
+
+    /* Tag that doesn't appear in an IFD produces a NULL */
+    VALIDATE(exif_tag_get_name_in_ifd(
+                        EXIF_TAG_EXIF_VERSION, EXIF_IFD_0) == NULL)
+
+    /* Invalid IFD produces a NULL */
+    VALIDATE(exif_tag_get_name_in_ifd(
+                        EXIF_TAG_EXIF_VERSION, EXIF_IFD_COUNT) == NULL)
+
+    return fail;
+}
+
+int
+main ()
+{
+    int fail = 0;
+
+    TESTBLOCK(support_level())
+    TESTBLOCK(name())
+
+    return fail;
+}