0N/A/*
2362N/A * Copyright (c) 2003, Oracle and/or its affiliates. All rights reserved.
0N/A * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
0N/A *
0N/A * This code is free software; you can redistribute it and/or modify it
0N/A * under the terms of the GNU General Public License version 2 only, as
2362N/A * published by the Free Software Foundation. Oracle designates this
0N/A * particular file as subject to the "Classpath" exception as provided
2362N/A * by Oracle in the LICENSE file that accompanied this code.
0N/A *
0N/A * This code is distributed in the hope that it will be useful, but WITHOUT
0N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
0N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
0N/A * version 2 for more details (a copy is included in the LICENSE file that
0N/A * accompanied this code).
0N/A *
0N/A * You should have received a copy of the GNU General Public License version
0N/A * 2 along with this work; if not, write to the Free Software Foundation,
0N/A * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
0N/A *
2362N/A * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
2362N/A * or visit www.oracle.com if you need additional information or have any
2362N/A * questions.
0N/A */
0N/A
0N/A
0N/A/*
0N/A * FUNCTIONS
0N/A * mlib_c_ImageConvClearEdge - Set edge of an image to a specific
0N/A * color. (for float-point image)
0N/A *
0N/A * SYNOPSIS
0N/A * mlib_status mlib_c_ImageConvClearEdge_Fp(mlib_image *img,
0N/A * mlib_s32 dx_l,
0N/A * mlib_s32 dx_r,
0N/A * mlib_s32 dy_t,
0N/A * mlib_s32 dy_b,
0N/A * const mlib_d64 *color,
0N/A * mlib_s32 cmask)
0N/A *
0N/A * ARGUMENT
0N/A * img Pointer to an image.
0N/A * dx_l Number of columns on the left side of the
0N/A * image to be cleared.
0N/A * dx_r Number of columns on the right side of the
0N/A * image to be cleared.
0N/A * dy_t Number of rows on the top edge of the
0N/A * image to be cleared.
0N/A * dy_b Number of rows on the top edge of the
0N/A * image to be cleared.
0N/A * color Pointer to the color that the edges are set to.
0N/A * cmask Channel mask to indicate the channels to be convolved.
0N/A * Each bit of which represents a channel in the image. The
0N/A * channels corresponded to 1 bits are those to be processed.
0N/A *
0N/A * RESTRICTION
0N/A * img can have 1, 2, 3 or 4 channels of MLIB_FLOAT or MLIB_DOUBLE
0N/A * data type.
0N/A *
0N/A * DESCRIPTION
0N/A * Set edge of an image to a specific color.
0N/A * The unselected channels are not overwritten.
0N/A * If src and dst have just one channel,
0N/A * cmask is ignored.
0N/A */
0N/A
0N/A#include "mlib_image.h"
0N/A#include "mlib_ImageConvEdge.h"
0N/A
0N/A/***************************************************************/
0N/A#define EDGES(chan, type, mask) \
0N/A{ \
0N/A type *pimg = (type *) mlib_ImageGetData(img); \
0N/A type color_i; \
0N/A mlib_s32 img_stride = mlib_ImageGetStride(img) / sizeof(type); \
0N/A mlib_s32 i, j, l; \
0N/A mlib_s32 testchan; \
0N/A \
0N/A testchan = 1; \
0N/A for (l = chan - 1; l >= 0; l--) { \
0N/A if ((mask & testchan) == 0) { \
0N/A testchan <<= 1; \
0N/A continue; \
0N/A } \
0N/A testchan <<= 1; \
0N/A color_i = (type) color[l]; \
0N/A for (j = 0; j < dx_l; j++) { \
0N/A for (i = dy_t; i < (img_height - dy_b); i++) { \
0N/A pimg[i * img_stride + l + j * chan] = color_i; \
0N/A } \
0N/A } \
0N/A for (j = 0; j < dx_r; j++) { \
0N/A for (i = dy_t; i < (img_height - dy_b); i++) { \
0N/A pimg[i * img_stride + l + (img_width - 1 - j) * chan] = color_i; \
0N/A } \
0N/A } \
0N/A for (i = 0; i < dy_t; i++) { \
0N/A for (j = 0; j < img_width; j++) { \
0N/A pimg[i * img_stride + l + j * chan] = color_i; \
0N/A } \
0N/A } \
0N/A for (i = 0; i < dy_b; i++) { \
0N/A for (j = 0; j < img_width; j++) { \
0N/A pimg[(img_height - 1 - i) * img_stride + l + j * chan] = color_i; \
0N/A } \
0N/A } \
0N/A } \
0N/A}
0N/A
0N/A/***************************************************************/
0N/Amlib_status mlib_ImageConvClearEdge_Fp(mlib_image *img,
0N/A mlib_s32 dx_l,
0N/A mlib_s32 dx_r,
0N/A mlib_s32 dy_t,
0N/A mlib_s32 dy_b,
0N/A const mlib_d64 *color,
0N/A mlib_s32 cmask)
0N/A{
0N/A mlib_s32 img_width = mlib_ImageGetWidth(img);
0N/A mlib_s32 img_height = mlib_ImageGetHeight(img);
0N/A mlib_s32 channel = mlib_ImageGetChannels(img);
0N/A
0N/A if (dx_l + dx_r > img_width) {
0N/A dx_l = img_width;
0N/A dx_r = 0;
0N/A }
0N/A
0N/A if (dy_t + dy_b > img_height) {
0N/A dy_t = img_height;
0N/A dy_b = 0;
0N/A }
0N/A
0N/A if (channel == 1) cmask = 1;
0N/A
0N/A switch (mlib_ImageGetType(img)) {
0N/A case MLIB_FLOAT:
0N/A EDGES(channel,mlib_f32, cmask);
0N/A break;
0N/A case MLIB_DOUBLE:
0N/A EDGES(channel,mlib_d64, cmask);
0N/A break;
0N/A default:
0N/A return MLIB_FAILURE;
0N/A }
0N/A
0N/A return MLIB_SUCCESS;
0N/A}
0N/A
0N/A/***************************************************************/