J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 1997-2003 Sun Microsystems, Inc. All Rights Reserved. |
| 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 | * |
| 5 | * This code is free software; you can redistribute it and/or modify it |
| 6 | * under the terms of the GNU General Public License version 2 only, as |
| 7 | * published by the Free Software Foundation. Sun designates this |
| 8 | * particular file as subject to the "Classpath" exception as provided |
| 9 | * by Sun in the LICENSE file that accompanied this code. |
| 10 | * |
| 11 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| 14 | * version 2 for more details (a copy is included in the LICENSE file that |
| 15 | * accompanied this code). |
| 16 | * |
| 17 | * You should have received a copy of the GNU General Public License version |
| 18 | * 2 along with this work; if not, write to the Free Software Foundation, |
| 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| 20 | * |
| 21 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 22 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 23 | * have any questions. |
| 24 | */ |
| 25 | |
| 26 | |
| 27 | /* |
| 28 | * FUNCTIONS |
| 29 | * mlib_ImageConvClearEdge - Set edge of an image to a specific color. |
| 30 | * |
| 31 | * SYNOPSIS |
| 32 | * mlib_status mlib_ImageConvClearEdge(mlib_image *dst, |
| 33 | * mlib_s32 dx_l, |
| 34 | * mlib_s32 dx_r, |
| 35 | * mlib_s32 dy_t, |
| 36 | * mlib_s32 dy_b, |
| 37 | * const mlib_s32 *color, |
| 38 | * mlib_s32 cmask) |
| 39 | * |
| 40 | * ARGUMENT |
| 41 | * dst Pointer to an image. |
| 42 | * dx_l Number of columns on the left side of the |
| 43 | * image to be cleared. |
| 44 | * dx_r Number of columns on the right side of the |
| 45 | * image to be cleared. |
| 46 | * dy_t Number of rows on the top edge of the |
| 47 | * image to be cleared. |
| 48 | * dy_b Number of rows on the top edge of the |
| 49 | * image to be cleared. |
| 50 | * color Pointer to the color that the edges are set to. |
| 51 | * cmask Channel mask to indicate the channels to be convolved. |
| 52 | * Each bit of which represents a channel in the image. The |
| 53 | * channels corresponded to 1 bits are those to be processed. |
| 54 | * |
| 55 | * RESTRICTION |
| 56 | * dst can have 1, 2, 3 or 4 channels of MLIB_BYTE or MLIB_SHORT or MLIB_INT |
| 57 | * data type. |
| 58 | * |
| 59 | * DESCRIPTION |
| 60 | * Set edge of an image to a specific color. (VIS version) |
| 61 | * The unselected channels are not overwritten. |
| 62 | * If src and dst have just one channel, |
| 63 | * cmask is ignored. |
| 64 | */ |
| 65 | |
| 66 | #include "mlib_image.h" |
| 67 | #include "mlib_ImageConvEdge.h" |
| 68 | |
| 69 | /***************************************************************/ |
| 70 | #define EDGES(chan, type, mask) \ |
| 71 | { \ |
| 72 | type *pdst = (type *) mlib_ImageGetData(dst); \ |
| 73 | type color_i; \ |
| 74 | mlib_s32 dst_stride = mlib_ImageGetStride(dst) / sizeof(type); \ |
| 75 | mlib_s32 i, j, l; \ |
| 76 | mlib_s32 testchan; \ |
| 77 | \ |
| 78 | testchan = 1; \ |
| 79 | for (l = chan - 1; l >= 0; l--) { \ |
| 80 | if ((mask & testchan) == 0) { \ |
| 81 | testchan <<= 1; \ |
| 82 | continue; \ |
| 83 | } \ |
| 84 | testchan <<= 1; \ |
| 85 | color_i = (type)color[l]; \ |
| 86 | for (j = 0; j < dx_l; j++) { \ |
| 87 | for (i = dy_t; i < (dst_height - dy_b); i++) { \ |
| 88 | pdst[i*dst_stride + l + j*chan] = color_i; \ |
| 89 | } \ |
| 90 | } \ |
| 91 | for (j = 0; j < dx_r; j++) { \ |
| 92 | for (i = dy_t; i < (dst_height - dy_b); i++) { \ |
| 93 | pdst[i*dst_stride + l+(dst_width-1 - j)*chan] = color_i; \ |
| 94 | } \ |
| 95 | } \ |
| 96 | for (i = 0; i < dy_t; i++) { \ |
| 97 | for (j = 0; j < dst_width; j++) { \ |
| 98 | pdst[i*dst_stride + l + j*chan] = color_i; \ |
| 99 | } \ |
| 100 | } \ |
| 101 | for (i = 0; i < dy_b; i++) { \ |
| 102 | for (j = 0; j < dst_width; j++) { \ |
| 103 | pdst[(dst_height-1 - i)*dst_stride + l + j*chan] = color_i; \ |
| 104 | } \ |
| 105 | } \ |
| 106 | } \ |
| 107 | } |
| 108 | |
| 109 | /***************************************************************/ |
| 110 | mlib_status mlib_ImageConvClearEdge(mlib_image *dst, |
| 111 | mlib_s32 dx_l, |
| 112 | mlib_s32 dx_r, |
| 113 | mlib_s32 dy_t, |
| 114 | mlib_s32 dy_b, |
| 115 | const mlib_s32 *color, |
| 116 | mlib_s32 cmask) |
| 117 | { |
| 118 | mlib_s32 dst_width = mlib_ImageGetWidth(dst); |
| 119 | mlib_s32 dst_height = mlib_ImageGetHeight(dst); |
| 120 | mlib_s32 channel = mlib_ImageGetChannels(dst); |
| 121 | |
| 122 | if (dx_l + dx_r > dst_width) { |
| 123 | dx_l = dst_width; |
| 124 | dx_r = 0; |
| 125 | } |
| 126 | |
| 127 | if (dy_t + dy_b > dst_height) { |
| 128 | dy_t = dst_height; |
| 129 | dy_b = 0; |
| 130 | } |
| 131 | |
| 132 | if (channel == 1) |
| 133 | cmask = 1; |
| 134 | |
| 135 | switch (mlib_ImageGetType(dst)) { |
| 136 | case MLIB_BIT: |
| 137 | return mlib_ImageConvClearEdge_Bit(dst, dx_l, dx_r, dy_t, dy_b, color, cmask); |
| 138 | case MLIB_BYTE: |
| 139 | EDGES(channel, mlib_u8, cmask) |
| 140 | break; |
| 141 | case MLIB_SHORT: |
| 142 | case MLIB_USHORT: |
| 143 | EDGES(channel, mlib_s16, cmask) |
| 144 | break; |
| 145 | case MLIB_INT: |
| 146 | EDGES(channel, mlib_s32, cmask) |
| 147 | break; |
| 148 | default: |
| 149 | return MLIB_FAILURE; |
| 150 | } |
| 151 | |
| 152 | return MLIB_SUCCESS; |
| 153 | } |
| 154 | |
| 155 | /***************************************************************/ |
| 156 | mlib_status mlib_ImageConvZeroEdge(mlib_image *dst, |
| 157 | mlib_s32 dx_l, |
| 158 | mlib_s32 dx_r, |
| 159 | mlib_s32 dy_t, |
| 160 | mlib_s32 dy_b, |
| 161 | mlib_s32 cmask) |
| 162 | { |
| 163 | mlib_d64 zero[4] = { 0, 0, 0, 0 }; |
| 164 | mlib_type type = mlib_ImageGetType(dst); |
| 165 | |
| 166 | if (type == MLIB_FLOAT || type == MLIB_DOUBLE) { |
| 167 | return mlib_ImageConvClearEdge_Fp(dst, dx_l, dx_r, dy_t, dy_b, zero, cmask); |
| 168 | } |
| 169 | else { |
| 170 | return mlib_ImageConvClearEdge(dst, dx_l, dx_r, dy_t, dy_b, (mlib_s32 *) zero, cmask); |
| 171 | } |
| 172 | } |
| 173 | |
| 174 | /***************************************************************/ |