vendor: OpenCV 5.0.0 snapshot at 40738fb16ceddb5fb3fea747585f7ce6abb0605b

2026-08-22 00:10:33 +08:00
commit f7f077da11
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+/*
+ * Copyright (c) 1988-1997 Sam Leffler
+ * Copyright (c) 1991-1997 Silicon Graphics, Inc.
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and
+ * its documentation for any purpose is hereby granted without fee, provided
+ * that (i) the above copyright notices and this permission notice appear in
+ * all copies of the software and related documentation, and (ii) the names of
+ * Sam Leffler and Silicon Graphics may not be used in any advertising or
+ * publicity relating to the software without the specific, prior written
+ * permission of Sam Leffler and Silicon Graphics.
+ *
+ * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
+ * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR
+ * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,
+ * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
+ * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF
+ * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
+ * OF THIS SOFTWARE.
+ */
+
+/*
+ * TIFF Library.
+ */
+#include "tiffiop.h"
+#include <string.h>
+
+/************************************************************************/
+/*                            TIFFCleanup()                             */
+/************************************************************************/
+
+/**
+ * Auxiliary function to free the TIFF structure. Given structure will be
+ * completely freed, so you should save opened file handle and pointer
+ * to the close procedure in external variables before calling
+ * _TIFFCleanup(), if you will need these ones to close the file.
+ *
+ * @param tif A TIFF pointer.
+ */
+
+void TIFFCleanup(TIFF *tif)
+{
+    /*
+     * Flush buffered data and directory (if dirty).
+     */
+    if (tif->tif_mode != O_RDONLY)
+        TIFFFlush(tif);
+    TIFFFreeDirectory(tif);
+
+    _TIFFCleanupIFDOffsetAndNumberMaps(tif);
+
+    /*
+     * Clean up client info links.
+     */
+    while (tif->tif_clientinfo)
+    {
+        TIFFClientInfoLink *psLink = tif->tif_clientinfo;
+
+        tif->tif_clientinfo = psLink->next;
+        _TIFFfreeExt(tif, psLink->name);
+        _TIFFfreeExt(tif, psLink);
+    }
+
+    if (tif->tif_rawdata && (tif->tif_flags & TIFF_MYBUFFER))
+        _TIFFfreeExt(tif, tif->tif_rawdata);
+    if (isMapped(tif))
+        TIFFUnmapFileContents(tif, tif->tif_base, (toff_t)tif->tif_size);
+
+    /*
+     * Clean up custom fields.
+     */
+    if (tif->tif_fields && tif->tif_nfields > 0)
+    {
+        uint32_t i;
+
+        for (i = 0; i < tif->tif_nfields; i++)
+        {
+            TIFFField *fld = tif->tif_fields[i];
+            if (fld->field_name != NULL)
+            {
+                if (fld->field_bit == FIELD_CUSTOM &&
+                    /* caution: tif_fields[i] must not be the beginning of a
+                     * fields-array. Otherwise the following tags are also freed
+                     * with the first free().
+                     */
+                    TIFFFieldIsAnonymous(fld))
+                {
+                    _TIFFfreeExt(tif, fld->field_name);
+                    _TIFFfreeExt(tif, fld);
+                }
+            }
+        }
+
+        _TIFFfreeExt(tif, tif->tif_fields);
+    }
+
+    if (tif->tif_nfieldscompat > 0)
+    {
+        uint32_t i;
+
+        for (i = 0; i < tif->tif_nfieldscompat; i++)
+        {
+            if (tif->tif_fieldscompat[i].allocated_size)
+                _TIFFfreeExt(tif, tif->tif_fieldscompat[i].fields);
+        }
+        _TIFFfreeExt(tif, tif->tif_fieldscompat);
+    }
+
+    if (tif->tif_cur_cumulated_mem_alloc != 0)
+    {
+        TIFFErrorExtR(tif, "TIFFCleanup",
+                      "tif_cur_cumulated_mem_alloc = %" PRIu64 " whereas it "
+                      "should be 0",
+                      (uint64_t)tif->tif_cur_cumulated_mem_alloc);
+    }
+
+    _TIFFfreeExt(NULL, tif);
+}
+
+/************************************************************************/
+/*                    _TIFFCleanupIFDOffsetAndNumberMaps()              */
+/************************************************************************/
+
+void _TIFFCleanupIFDOffsetAndNumberMaps(TIFF *tif)
+{
+    if (tif->tif_map_dir_offset_to_number)
+    {
+        TIFFHashSetDestroy(tif->tif_map_dir_offset_to_number);
+        tif->tif_map_dir_offset_to_number = NULL;
+    }
+    if (tif->tif_map_dir_number_to_offset)
+    {
+        TIFFHashSetDestroy(tif->tif_map_dir_number_to_offset);
+        tif->tif_map_dir_number_to_offset = NULL;
+    }
+}
+
+/************************************************************************/
+/*                            TIFFClose()                               */
+/************************************************************************/
+
+/**
+ * Close a previously opened TIFF file.
+ *
+ * TIFFClose closes a file that was previously opened with TIFFOpen().
+ * Any buffered data are flushed to the file, including the contents of
+ * the current directory (if modified); and all resources are reclaimed.
+ *
+ * @param tif A TIFF pointer.
+ */
+
+void TIFFClose(TIFF *tif)
+{
+    if (tif != NULL)
+    {
+        TIFFCloseProc closeproc = tif->tif_closeproc;
+        thandle_t fd = tif->tif_clientdata;
+
+        TIFFCleanup(tif);
+        (void)(*closeproc)(fd);
+    }
+}