--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/java.desktop/share/native/libmlib_image/mlib_c_ImageConvCopyEdge.c Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,165 @@
+/*
+ * Copyright (c) 1997, 2003, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation. Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code 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 General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+
+/*
+ * FUNCTIONS
+ * mlib_ImageConvCopyEdge - Copy src edges to dst edges
+ *
+ *
+ * SYNOPSIS
+ * mlib_status mlib_ImageConvCopyEdge(mlib_image *dst,
+ * const mlib_image *src,
+ * mlib_s32 dx_l,
+ * mlib_s32 dx_r,
+ * mlib_s32 dy_t,
+ * mlib_s32 dy_b,
+ * mlib_s32 cmask)
+ *
+ * ARGUMENT
+ * dst Pointer to an dst image.
+ * src Pointer to an src image.
+ * dx_l Number of columns on the left side of the
+ * image to be copyed.
+ * dx_r Number of columns on the right side of the
+ * image to be copyed.
+ * dy_t Number of rows on the top edge of the
+ * image to be copyed.
+ * dy_b Number of rows on the top edge of the
+ * image to be copyed.
+ * cmask Channel mask to indicate the channels to be convolved.
+ * Each bit of which represents a channel in the image. The
+ * channels corresponded to 1 bits are those to be processed.
+ *
+ * RESTRICTION
+ * The src and the dst must be the same type, same width, same height and have same number
+ * of channels (1, 2, 3, or 4). The unselected channels are not
+ * overwritten. If both src and dst have just one channel,
+ * cmask is ignored.
+ *
+ * DESCRIPTION
+ * Copy src edges to dst edges.
+ *
+ * The unselected channels are not overwritten.
+ * If src and dst have just one channel,
+ * cmask is ignored.
+ */
+
+#include "mlib_image.h"
+#include "mlib_ImageConvEdge.h"
+
+/***************************************************************/
+#define EDGES(chan, type, mask) \
+ { \
+ type *pdst = (type *) mlib_ImageGetData(dst); \
+ type *psrc = (type *) mlib_ImageGetData(src); \
+ mlib_s32 dst_stride = mlib_ImageGetStride(dst) / sizeof(type); \
+ mlib_s32 src_stride = mlib_ImageGetStride(src) / sizeof(type); \
+ mlib_s32 i, j, l; \
+ mlib_s32 testchan; \
+ \
+ testchan = 1; \
+ for (l = chan - 1; l >= 0; l--) { \
+ if ((mask & testchan) == 0) { \
+ testchan <<= 1; \
+ continue; \
+ } \
+ testchan <<= 1; \
+ for (j = 0; j < dx_l; j++) { \
+ for (i = dy_t; i < (img_height - dy_b); i++) { \
+ pdst[i*dst_stride + l + j*chan] = psrc[i*src_stride + l + j*chan]; \
+ } \
+ } \
+ for (j = 0; j < dx_r; j++) { \
+ for (i = dy_t; i < (img_height - dy_b); i++) { \
+ pdst[i*dst_stride + l+(img_width-1 - j)*chan] = \
+ psrc[i*src_stride + l+(img_width-1 - j)*chan]; \
+ } \
+ } \
+ for (i = 0; i < dy_t; i++) { \
+ for (j = 0; j < img_width; j++) { \
+ pdst[i*dst_stride + l + j*chan] = psrc[i*src_stride + l + j*chan]; \
+ } \
+ } \
+ for (i = 0; i < dy_b; i++) { \
+ for (j = 0; j < img_width; j++) { \
+ pdst[(img_height-1 - i)*dst_stride + l + j*chan] = \
+ psrc[(img_height-1 - i)*src_stride + l + j*chan]; \
+ } \
+ } \
+ } \
+ }
+
+/***************************************************************/
+mlib_status mlib_ImageConvCopyEdge(mlib_image *dst,
+ const mlib_image *src,
+ mlib_s32 dx_l,
+ mlib_s32 dx_r,
+ mlib_s32 dy_t,
+ mlib_s32 dy_b,
+ mlib_s32 cmask)
+{
+ mlib_s32 img_width = mlib_ImageGetWidth(dst);
+ mlib_s32 img_height = mlib_ImageGetHeight(dst);
+ mlib_s32 channel = mlib_ImageGetChannels(dst);
+
+ if (dx_l + dx_r > img_width) {
+ dx_l = img_width;
+ dx_r = 0;
+ }
+
+ if (dy_t + dy_b > img_height) {
+ dy_t = img_height;
+ dy_b = 0;
+ }
+
+ if (channel == 1)
+ cmask = 1;
+
+ switch (mlib_ImageGetType(src)) {
+ case MLIB_BIT:
+ return mlib_ImageConvCopyEdge_Bit(dst, src, dx_l, dx_r, dy_t, dy_b, cmask);
+ case MLIB_BYTE:
+ EDGES(channel, mlib_u8, cmask)
+ break;
+ case MLIB_SHORT:
+ case MLIB_USHORT:
+ EDGES(channel, mlib_u16, cmask)
+ break;
+ case MLIB_INT:
+ case MLIB_FLOAT:
+ EDGES(channel, mlib_u32, cmask)
+ break;
+ case MLIB_DOUBLE:
+ EDGES(channel, mlib_d64, cmask)
+ break;
+ default:
+ return MLIB_FAILURE;
+ }
+
+ return MLIB_SUCCESS;
+}
+
+/***************************************************************/