/* * 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_ImageConvClearEdge - Set edge of an image to a specific color. * * SYNOPSIS * mlib_status mlib_ImageConvClearEdge(mlib_image *dst, * mlib_s32 dx_l, * mlib_s32 dx_r, * mlib_s32 dy_t, * mlib_s32 dy_b, * const mlib_s32 *color, * mlib_s32 cmask) * * ARGUMENT * dst 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 * dst can have 1, 2, 3 or 4 channels of MLIB_BYTE or MLIB_SHORT or MLIB_INT * data type. * * DESCRIPTION * Set edge of an image to a specific color. (VIS version) * 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 color_i; \ mlib_s32 dst_stride = mlib_ImageGetStride(dst) / 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 < (dst_height - dy_b); i++) { \ pdst[i*dst_stride + l + j*chan] = color_i; \ } \ } \ for (j = 0; j < dx_r; j++) { \ for (i = dy_t; i < (dst_height - dy_b); i++) { \ pdst[i*dst_stride + l+(dst_width-1 - j)*chan] = color_i; \ } \ } \ for (i = 0; i < dy_t; i++) { \ for (j = 0; j < dst_width; j++) { \ pdst[i*dst_stride + l + j*chan] = color_i; \ } \ } \ for (i = 0; i < dy_b; i++) { \ for (j = 0; j < dst_width; j++) { \ pdst[(dst_height-1 - i)*dst_stride + l + j*chan] = color_i; \ } \ } \ } \ } /***************************************************************/ mlib_status mlib_ImageConvClearEdge(mlib_image *dst, mlib_s32 dx_l, mlib_s32 dx_r, mlib_s32 dy_t, mlib_s32 dy_b, const mlib_s32 *color, mlib_s32 cmask) { mlib_s32 dst_width = mlib_ImageGetWidth(dst); mlib_s32 dst_height = mlib_ImageGetHeight(dst); mlib_s32 channel = mlib_ImageGetChannels(dst); if (dx_l + dx_r > dst_width) { dx_l = dst_width; dx_r = 0; } if (dy_t + dy_b > dst_height) { dy_t = dst_height; dy_b = 0; } if (channel == 1) cmask = 1; switch (mlib_ImageGetType(dst)) { case MLIB_BIT: return mlib_ImageConvClearEdge_Bit(dst, dx_l, dx_r, dy_t, dy_b, color, cmask); case MLIB_BYTE: EDGES(channel, mlib_u8, cmask) break; case MLIB_SHORT: case MLIB_USHORT: EDGES(channel, mlib_s16, cmask) break; case MLIB_INT: EDGES(channel, mlib_s32, cmask) break; default: return MLIB_FAILURE; } return MLIB_SUCCESS; } /***************************************************************/ mlib_status mlib_ImageConvZeroEdge(mlib_image *dst, mlib_s32 dx_l, mlib_s32 dx_r, mlib_s32 dy_t, mlib_s32 dy_b, mlib_s32 cmask) { mlib_d64 zero[4] = { 0, 0, 0, 0 }; mlib_type type = mlib_ImageGetType(dst); if (type == MLIB_FLOAT || type == MLIB_DOUBLE) { return mlib_ImageConvClearEdge_Fp(dst, dx_l, dx_r, dy_t, dy_b, zero, cmask); } else { return mlib_ImageConvClearEdge(dst, dx_l, dx_r, dy_t, dy_b, (mlib_s32 *) zero, cmask); } } /***************************************************************/