|
Java example source code file (mlib_ImageConvClearEdge_Fp.c)
The mlib_ImageConvClearEdge_Fp.c Java example source code/* * Copyright (c) 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_c_ImageConvClearEdge - Set edge of an image to a specific * color. (for float-point image) * * SYNOPSIS * mlib_status mlib_c_ImageConvClearEdge_Fp(mlib_image *img, * mlib_s32 dx_l, * mlib_s32 dx_r, * mlib_s32 dy_t, * mlib_s32 dy_b, * const mlib_d64 *color, * mlib_s32 cmask) * * ARGUMENT * img Pointer to an image. * dx_l Number of columns on the left side of the * image to be cleared. * dx_r Number of columns on the right side of the * image to be cleared. * dy_t Number of rows on the top edge of the * image to be cleared. * dy_b Number of rows on the top edge of the * image to be cleared. * color Pointer to the color that the edges are set to. * 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 * img can have 1, 2, 3 or 4 channels of MLIB_FLOAT or MLIB_DOUBLE * data type. * * DESCRIPTION * Set edge of an image to a specific color. * 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 *pimg = (type *) mlib_ImageGetData(img); \ type color_i; \ mlib_s32 img_stride = mlib_ImageGetStride(img) / 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; \ color_i = (type) color[l]; \ for (j = 0; j < dx_l; j++) { \ for (i = dy_t; i < (img_height - dy_b); i++) { \ pimg[i * img_stride + l + j * chan] = color_i; \ } \ } \ for (j = 0; j < dx_r; j++) { \ for (i = dy_t; i < (img_height - dy_b); i++) { \ pimg[i * img_stride + l + (img_width - 1 - j) * chan] = color_i; \ } \ } \ for (i = 0; i < dy_t; i++) { \ for (j = 0; j < img_width; j++) { \ pimg[i * img_stride + l + j * chan] = color_i; \ } \ } \ for (i = 0; i < dy_b; i++) { \ for (j = 0; j < img_width; j++) { \ pimg[(img_height - 1 - i) * img_stride + l + j * chan] = color_i; \ } \ } \ } \ } /***************************************************************/ mlib_status mlib_ImageConvClearEdge_Fp(mlib_image *img, mlib_s32 dx_l, mlib_s32 dx_r, mlib_s32 dy_t, mlib_s32 dy_b, const mlib_d64 *color, mlib_s32 cmask) { mlib_s32 img_width = mlib_ImageGetWidth(img); mlib_s32 img_height = mlib_ImageGetHeight(img); mlib_s32 channel = mlib_ImageGetChannels(img); 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(img)) { case MLIB_FLOAT: EDGES(channel,mlib_f32, cmask); break; case MLIB_DOUBLE: EDGES(channel,mlib_d64, cmask); break; default: return MLIB_FAILURE; } return MLIB_SUCCESS; } /***************************************************************/ Other Java examples (source code examples)Here is a short list of links related to this Java mlib_ImageConvClearEdge_Fp.c source code file: |
... this post is sponsored by my books ... | |
#1 New Release! |
FP Best Seller |
Copyright 1998-2024 Alvin Alexander, alvinalexander.com
All Rights Reserved.
A percentage of advertising revenue from
pages under the /java/jwarehouse
URI on this website is
paid back to open source projects.