--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/src/java.desktop/share/native/libmlib_image/mlib_ImageConvMxN.c Sun Aug 17 15:54:13 2014 +0100
@@ -0,0 +1,306 @@
+/*
+ * Copyright (c) 2003, 2011, 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.
+ */
+
+
+/*
+ * FUNCTION
+ * mlib_ImageConvMxN - image convolution with edge condition
+ *
+ * SYNOPSIS
+ * mlib_status mlib_ImageConvMxN(mlib_image *dst,
+ * const mlib_image *src,
+ * const mlib_s32 *kernel,
+ * mlib_s32 m,
+ * mlib_s32 n,
+ * mlib_s32 dm,
+ * mlib_s32 dn,
+ * mlib_s32 scale,
+ * mlib_s32 cmask,
+ * mlib_edge edge)
+ *
+ * ARGUMENTS
+ * dst Pointer to destination image.
+ * src Pointer to source image.
+ * m Kernel width (m must be not less than 1).
+ * n Kernel height (n must be not less than 1).
+ * dm, dn Position of key element in convolution kernel.
+ * kernel Pointer to convolution kernel.
+ * scale The scaling factor to convert the input integer
+ * coefficients into floating-point coefficients:
+ * floating-point coefficient = integer coefficient * 2^(-scale)
+ * 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.
+ * edge Type of edge condition.
+ *
+ * DESCRIPTION
+ * 2-D convolution, MxN kernel.
+ *
+ * The center of the source image is mapped to the center of the
+ * destination image.
+ * The unselected channels are not overwritten. If both src and dst have
+ * just one channel, cmask is ignored.
+ *
+ * The edge condition can be one of the following:
+ * MLIB_EDGE_DST_NO_WRITE (default)
+ * MLIB_EDGE_DST_FILL_ZERO
+ * MLIB_EDGE_DST_COPY_SRC
+ * MLIB_EDGE_SRC_EXTEND
+ *
+ * RESTRICTION
+ * The src and the dst must be the same type and have same number
+ * of channels (1, 2, 3, or 4). They can be in MLIB_BIT, MLIB_BYTE,
+ * MLIB_SHORT, MLIB_USHORT or MLIB_INT data type.
+ * m >= 1, n >= 1,
+ * 0 <= dm < m, 0 <= dn < n.
+ * For data type MLIB_BYTE: 16 <= scale <= 31 (to be compatible with VIS version)
+ * For data type MLIB_SHORT: 17 <= scale <= 32 (to be compatible with VIS version)
+ * For data type MLIB_USHORT: 17 <= scale <= 32 (to be compatible with VIS version)
+ * For data type MLIB_INT: scale >= 0
+ */
+
+#include "mlib_image.h"
+#include "mlib_ImageCheck.h"
+#include "mlib_ImageConv.h"
+#include "mlib_ImageCreate.h"
+#include "mlib_c_ImageConv.h"
+#include "mlib_ImageClipping.h"
+#include "mlib_ImageConvEdge.h"
+
+/***************************************************************/
+mlib_status mlib_ImageConvMxN(mlib_image *dst,
+ const mlib_image *src,
+ const mlib_s32 *kernel,
+ mlib_s32 m,
+ mlib_s32 n,
+ mlib_s32 dm,
+ mlib_s32 dn,
+ mlib_s32 scale,
+ mlib_s32 cmask,
+ mlib_edge edge)
+{
+ MLIB_IMAGE_CHECK(dst);
+
+ switch (mlib_ImageGetType(dst)) {
+ case MLIB_BYTE:
+
+ if (scale < 16 || scale > 31)
+ return MLIB_FAILURE;
+ break;
+ case MLIB_SHORT:
+ case MLIB_USHORT:
+
+ if (scale < 17 || scale > 32)
+ return MLIB_FAILURE;
+ break;
+ case MLIB_INT:
+
+ if (scale < 0)
+ return MLIB_FAILURE;
+ break;
+ default:
+ return MLIB_FAILURE;
+ }
+
+ return mlib_ImageConvMxN_f(dst, src, kernel, m, n, dm, dn, scale, cmask, edge);
+}
+
+/***************************************************************/
+mlib_status mlib_ImageConvMxN_f(mlib_image *dst,
+ const mlib_image *src,
+ const void *kernel,
+ mlib_s32 m,
+ mlib_s32 n,
+ mlib_s32 dm,
+ mlib_s32 dn,
+ mlib_s32 scale,
+ mlib_s32 cmask,
+ mlib_edge edge)
+{
+ mlib_image dst_i[1], src_i[1], dst_e[1], src_e[1];
+ mlib_type type;
+ mlib_s32 nchan, dx_l, dx_r, dy_t, dy_b;
+ mlib_s32 edg_sizes[8];
+ mlib_status ret;
+
+ if (m < 1 || n < 1 || dm < 0 || dm > m - 1 || dn < 0 || dn > n - 1)
+ return MLIB_FAILURE;
+
+ if (kernel == NULL)
+ return MLIB_NULLPOINTER;
+
+ ret =
+ mlib_ImageClippingMxN(dst_i, src_i, dst_e, src_e, edg_sizes, dst, src, m, n, dm, dn);
+
+ if (ret != MLIB_SUCCESS)
+ return ret;
+
+ nchan = mlib_ImageGetChannels(dst);
+ type = mlib_ImageGetType(dst);
+
+ if (nchan == 1)
+ cmask = 1;
+
+ if ((cmask & ((1 << nchan) - 1)) == 0)
+ return MLIB_SUCCESS;
+
+ dx_l = edg_sizes[0];
+ dx_r = edg_sizes[1];
+ dy_t = edg_sizes[2];
+ dy_b = edg_sizes[3];
+
+ if (dx_l + dx_r + dy_t + dy_b == 0)
+ edge = MLIB_EDGE_DST_NO_WRITE;
+
+ if (edge != MLIB_EDGE_SRC_EXTEND) {
+ if (mlib_ImageGetWidth(dst_i) >= m && mlib_ImageGetHeight(dst_i) >= n) {
+ switch (type) {
+ case MLIB_BYTE:
+ ret = mlib_convMxNnw_u8(dst_i, src_i, kernel, m, n, dm, dn, scale, cmask);
+ break;
+ case MLIB_SHORT:
+#ifdef __sparc
+ ret = mlib_convMxNnw_s16(dst_i, src_i, kernel, m, n, dm, dn, scale, cmask);
+#else
+
+ if (mlib_ImageConvVersion(m, n, scale, type) == 0)
+ ret = mlib_convMxNnw_s16(dst_i, src_i, kernel, m, n, dm, dn, scale, cmask);
+ else
+ ret = mlib_i_convMxNnw_s16(dst_i, src_i, kernel, m, n, dm, dn, scale, cmask);
+#endif /* __sparc */
+ break;
+ case MLIB_USHORT:
+#ifdef __sparc
+ ret = mlib_convMxNnw_u16(dst_i, src_i, kernel, m, n, dm, dn, scale, cmask);
+#else
+
+ if (mlib_ImageConvVersion(m, n, scale, type) == 0)
+ ret = mlib_convMxNnw_u16(dst_i, src_i, kernel, m, n, dm, dn, scale, cmask);
+ else
+ ret = mlib_i_convMxNnw_u16(dst_i, src_i, kernel, m, n, dm, dn, scale, cmask);
+#endif /* __sparc */
+ break;
+ case MLIB_INT:
+ ret = mlib_convMxNnw_s32(dst_i, src_i, kernel, m, n, dm, dn, scale, cmask);
+ break;
+ case MLIB_FLOAT:
+ ret = mlib_convMxNnw_f32(dst_i, src_i, kernel, m, n, dm, dn, cmask);
+ break;
+ case MLIB_DOUBLE:
+ ret = mlib_convMxNnw_d64(dst_i, src_i, kernel, m, n, dm, dn, cmask);
+ break;
+
+ default:
+ /* For some reasons, there is no convolution routine for type MLIB_BIT.
+ * For now, we silently ignore it (because this image type is not used by java),
+ * but probably we have to report an error.
+ */
+ break;
+ }
+ }
+
+ switch (edge) {
+ case MLIB_EDGE_DST_FILL_ZERO:
+ mlib_ImageConvZeroEdge(dst_e, dx_l, dx_r, dy_t, dy_b, cmask);
+ break;
+ case MLIB_EDGE_DST_COPY_SRC:
+ mlib_ImageConvCopyEdge(dst_e, src_e, dx_l, dx_r, dy_t, dy_b, cmask);
+ break;
+ default:
+ /* Other edge conditions do not need additional handling.
+ * Note also that they are not exposed in public Java API
+ */
+ break;
+ }
+ }
+ else { /* MLIB_EDGE_SRC_EXTEND */
+ /* adjust src_e image */
+ mlib_ImageSetSubimage(src_e, src_e, dx_l - dm, dy_t - dn,
+ mlib_ImageGetWidth(src_e), mlib_ImageGetHeight(src_e));
+
+ switch (type) {
+ case MLIB_BYTE:
+ ret =
+ mlib_convMxNext_u8(dst_e, src_e, kernel, m, n, dx_l, dx_r, dy_t, dy_b, scale,
+ cmask);
+ break;
+ case MLIB_SHORT:
+#ifdef __sparc
+ ret =
+ mlib_convMxNext_s16(dst_e, src_e, kernel, m, n, dx_l, dx_r, dy_t, dy_b, scale,
+ cmask);
+#else
+
+ if (mlib_ImageConvVersion(m, n, scale, type) == 0)
+ ret =
+ mlib_convMxNext_s16(dst_e, src_e, kernel, m, n, dx_l, dx_r, dy_t, dy_b, scale,
+ cmask);
+ else
+ ret =
+ mlib_i_convMxNext_s16(dst_e, src_e, kernel, m, n, dx_l, dx_r, dy_t, dy_b,
+ scale, cmask);
+#endif /* __sparc */
+ break;
+ case MLIB_USHORT:
+#ifdef __sparc
+ ret =
+ mlib_convMxNext_u16(dst_e, src_e, kernel, m, n, dx_l, dx_r, dy_t, dy_b, scale,
+ cmask);
+#else
+
+ if (mlib_ImageConvVersion(m, n, scale, type) == 0)
+ ret =
+ mlib_convMxNext_u16(dst_e, src_e, kernel, m, n, dx_l, dx_r, dy_t, dy_b, scale,
+ cmask);
+ else
+ ret =
+ mlib_i_convMxNext_u16(dst_e, src_e, kernel, m, n, dx_l, dx_r, dy_t, dy_b,
+ scale, cmask);
+#endif /* __sparc */
+ break;
+ case MLIB_INT:
+ ret =
+ mlib_convMxNext_s32(dst_e, src_e, kernel, m, n, dx_l, dx_r, dy_t, dy_b, scale,
+ cmask);
+ break;
+ case MLIB_FLOAT:
+ mlib_convMxNext_f32(dst_e, src_e, kernel, m, n, dx_l, dx_r, dy_t, dy_b, cmask);
+ break;
+ case MLIB_DOUBLE:
+ mlib_convMxNext_d64(dst_e, src_e, kernel, m, n, dx_l, dx_r, dy_t, dy_b, cmask);
+ break;
+ default:
+ /* For some reasons, there is no convolution routine for type MLIB_BIT.
+ * For now, we silently ignore it (because this image type is not used by java),
+ * but probably we have to report an error.
+ */
+ break;
+ }
+ }
+
+ return ret;
+}
+
+/***************************************************************/