[1940] | 1 | //colors.c: |
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| 2 | |
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| 3 | /* |
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[3811] | 4 | * Copyright (C) Philipp 'ph3-der-loewe' Schafft - 2009-2010 |
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[1940] | 5 | * |
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| 6 | * This file is part of libroardsp a part of RoarAudio, |
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| 7 | * a cross-platform sound system for both, home and professional use. |
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| 8 | * See README for details. |
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| 9 | * |
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| 10 | * This file is free software; you can redistribute it and/or modify |
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| 11 | * it under the terms of the GNU General Public License version 3 |
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| 12 | * as published by the Free Software Foundation. |
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| 13 | * |
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| 14 | * libroardsp is distributed in the hope that it will be useful, |
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| 15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 17 | * GNU General Public License for more details. |
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| 18 | * |
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| 19 | * You should have received a copy of the GNU General Public License |
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| 20 | * along with this software; see the file COPYING. If not, write to |
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[3517] | 21 | * the Free Software Foundation, 51 Franklin Street, Fifth Floor, |
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| 22 | * Boston, MA 02110-1301, USA. |
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[1940] | 23 | * |
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| 24 | */ |
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| 25 | |
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| 26 | #include "libroarlight.h" |
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| 27 | |
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[1941] | 28 | int roar_color_new (struct roar_color * c) { |
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| 29 | if ( c == NULL ) |
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| 30 | return -1; |
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| 31 | |
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| 32 | memset(c, 0, sizeof(struct roar_color)); |
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| 33 | |
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| 34 | c->system = ROAR_COLORSYSTEM_NONE; |
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| 35 | |
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| 36 | return 0; |
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| 37 | } |
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| 38 | |
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| 39 | int roar_color_new_gray (struct roar_color * c, unsigned char k) { |
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| 40 | if ( roar_color_new(c) == -1 ) |
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| 41 | return -1; |
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| 42 | |
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| 43 | c->system = ROAR_COLORSYSTEM_GRAY; |
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| 44 | |
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| 45 | c->color.gray.k = k; |
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| 46 | |
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| 47 | return 0; |
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| 48 | } |
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| 49 | |
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| 50 | int roar_color_new_rgb (struct roar_color * c, unsigned char r, unsigned char g, unsigned char b) { |
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| 51 | if ( roar_color_new(c) == -1 ) |
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| 52 | return -1; |
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| 53 | |
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| 54 | c->system = ROAR_COLORSYSTEM_RGB; |
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| 55 | |
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| 56 | c->color.rgb.r = r; |
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| 57 | c->color.rgb.g = g; |
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| 58 | c->color.rgb.b = b; |
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| 59 | |
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| 60 | return 0; |
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| 61 | } |
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| 62 | |
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| 63 | int roar_color_copy (struct roar_color * dst, struct roar_color * src) { |
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| 64 | if ( dst == NULL || src == NULL ) |
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| 65 | return -1; |
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| 66 | |
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| 67 | memcpy(dst, src, sizeof(struct roar_color)); |
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| 68 | |
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| 69 | return 0; |
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| 70 | } |
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| 71 | |
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| 72 | int roar_color_conv (struct roar_color * c, uint32_t system) { |
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| 73 | if ( c == NULL ) |
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| 74 | return -1; |
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| 75 | |
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| 76 | switch (c->system) { |
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| 77 | case ROAR_COLORSYSTEM_GRAY: |
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| 78 | return roar_color_conv_gray(c, system); |
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| 79 | break; |
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| 80 | case ROAR_COLORSYSTEM_RGB: |
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| 81 | return roar_color_conv_rgb(c, system); |
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| 82 | break; |
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| 83 | } |
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| 84 | |
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| 85 | return -1; |
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| 86 | } |
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| 87 | |
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| 88 | int roar_color_conv_gray (struct roar_color * c, uint32_t system) { |
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| 89 | unsigned char k; |
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| 90 | |
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| 91 | if ( c == NULL ) |
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| 92 | return -1; |
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| 93 | |
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| 94 | if ( c->system != ROAR_COLORSYSTEM_GRAY ) |
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| 95 | return -1; |
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| 96 | |
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| 97 | switch (system) { |
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| 98 | case ROAR_COLORSYSTEM_RGB: |
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| 99 | k = c->color.gray.k; |
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| 100 | c->color.rgb.r = k; |
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| 101 | c->color.rgb.g = k; |
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| 102 | c->color.rgb.b = k; |
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| 103 | c->system = ROAR_COLORSYSTEM_RGB; |
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| 104 | return 0; |
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| 105 | break; |
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| 106 | } |
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| 107 | |
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| 108 | return -1; |
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| 109 | } |
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| 110 | |
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| 111 | int roar_color_conv_rgb (struct roar_color * c, uint32_t system) { |
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| 112 | if ( c == NULL ) |
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| 113 | return -1; |
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| 114 | |
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| 115 | if ( c->system != ROAR_COLORSYSTEM_GRAY ) |
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| 116 | return -1; |
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| 117 | |
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| 118 | switch (system) { |
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| 119 | } |
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| 120 | |
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| 121 | return -1; |
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| 122 | } |
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| 123 | |
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[2602] | 124 | int roar_color_to_string (struct roar_color * c, char * str, size_t len) { |
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| 125 | size_t needlen; |
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| 126 | |
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| 127 | if ( c == NULL || str == NULL || len == 0 ) |
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| 128 | return -1; |
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| 129 | |
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| 130 | // just to be sure: |
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| 131 | if ( len >= 1 ) |
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| 132 | *str = 0; |
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| 133 | |
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| 134 | switch (c->system) { |
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| 135 | case ROAR_COLORSYSTEM_NONE: needlen = 6; break; // '(none)' |
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| 136 | case ROAR_COLORSYSTEM_RGB: needlen = 7; break; // '#RRGGBB' |
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| 137 | default: |
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| 138 | return -1; |
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| 139 | } |
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| 140 | |
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| 141 | needlen++; // terminating \0 |
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| 142 | |
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| 143 | if ( needlen > len ) |
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| 144 | return -1; |
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| 145 | |
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| 146 | switch (c->system) { |
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| 147 | case ROAR_COLORSYSTEM_NONE: |
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| 148 | strcpy(str, "(none)"); |
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| 149 | break; |
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| 150 | case ROAR_COLORSYSTEM_RGB: |
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| 151 | snprintf(str, 8, "#%.2X%.2X%.2X", c->color.rgb.r, c->color.rgb.g, c->color.rgb.b); |
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| 152 | break; |
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| 153 | } |
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| 154 | |
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| 155 | return 0; |
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| 156 | } |
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| 157 | |
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| 158 | int roar_color_to_blob (struct roar_color * c, char * blob, size_t len); |
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| 159 | int roar_color_from_blob (struct roar_color * c, char * blob, size_t len); |
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| 160 | |
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[1940] | 161 | //ll |
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