1 files changed, 81 insertions, 0 deletions
diff --git a/leptonica/prog/rasteropip_reg.c b/leptonica/prog/rasteropip_reg.c
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+++ b/leptonica/prog/rasteropip_reg.c
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+/*====================================================================*
+ -  Copyright (C) 2001 Leptonica.  All rights reserved.
+ -
+ -  Redistribution and use in source and binary forms, with or without
+ -  modification, are permitted provided that the following conditions
+ -  are met:
+ -  1. Redistributions of source code must retain the above copyright
+ -     notice, this list of conditions and the following disclaimer.
+ -  2. Redistributions in binary form must reproduce the above
+ -     copyright notice, this list of conditions and the following
+ -     disclaimer in the documentation and/or other materials
+ -     provided with the distribution.
+ -
+ -  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ -  ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ -  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ -  A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL ANY
+ -  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ -  EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ -  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ -  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ -  OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ -  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ -  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *====================================================================*/
+
+/*
+ *   rasteropip_reg.c
+ *
+ *   Tests in-place operation using the general 2-image pixRasterop().
+ *   The in-place operation works because there is no overlap
+ *   between the src and dest rectangles.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config_auto.h>
+#endif  /* HAVE_CONFIG_H */
+
+#include "allheaders.h"
+
+int main(int    argc,
+         char **argv)
+{
+l_int32       i, j;
+PIX          *pixs, *pixt, *pixd;
+L_REGPARAMS  *rp;
+
+    if (regTestSetup(argc, argv, &rp))
+        return 1;
+
+    pixs = pixRead("test8.jpg");
+    pixt = pixCopy(NULL, pixs);
+
+        /* Copy, in-place and one COLUMN at a time, from the right
+           side to the left side. */
+    for (j = 0; j < 200; j++)
+        pixRasterop(pixs, 20 + j, 20, 1, 250, PIX_SRC, pixs, 250 + j, 20);
+    pixDisplayWithTitle(pixs, 50, 50, "in-place copy", rp->display);
+
+        /* Copy, in-place and one ROW at a time, from the right
+           side to the left side. */
+    for (i = 0; i < 250; i++)
+        pixRasterop(pixt, 20, 20 + i, 200, 1, PIX_SRC, pixt, 250, 20 + i);
+
+        /* Test */
+    regTestComparePix(rp, pixs, pixt);   /* 0 */
+    pixDestroy(&pixs);
+    pixDestroy(&pixt);
+
+        /* Show the mirrored border, which uses the general
+           pixRasterop() on an image in-place.  */
+    pixs = pixRead("test8.jpg");
+    pixt = pixRemoveBorder(pixs, 40);
+    pixd = pixAddMirroredBorder(pixt, 40, 40, 40, 40);
+    regTestWritePixAndCheck(rp, pixd, IFF_PNG);  /* 1 */
+    pixDisplayWithTitle(pixd, 650, 50, "mirrored border", rp->display);
+    pixDestroy(&pixs);
+    pixDestroy(&pixt);
+    pixDestroy(&pixd);
+    return regTestCleanup(rp);
+}