diff options
Diffstat (limited to 'mobile/android/exoplayer2/src/main/java/org/mozilla/thirdparty/com/google/android/exoplayer2/util/ColorParser.java')
| -rw-r--r-- | mobile/android/exoplayer2/src/main/java/org/mozilla/thirdparty/com/google/android/exoplayer2/util/ColorParser.java | 277 |
1 files changed, 277 insertions, 0 deletions
diff --git a/mobile/android/exoplayer2/src/main/java/org/mozilla/thirdparty/com/google/android/exoplayer2/util/ColorParser.java b/mobile/android/exoplayer2/src/main/java/org/mozilla/thirdparty/com/google/android/exoplayer2/util/ColorParser.java new file mode 100644 index 0000000000..31b81fe16f --- /dev/null +++ b/mobile/android/exoplayer2/src/main/java/org/mozilla/thirdparty/com/google/android/exoplayer2/util/ColorParser.java @@ -0,0 +1,277 @@ +/* + * Copyright (C) 2016 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +package org.mozilla.thirdparty.com.google.android.exoplayer2.util; + +import android.text.TextUtils; +import java.util.HashMap; +import java.util.Map; +import java.util.regex.Matcher; +import java.util.regex.Pattern; + +/** + * Parser for color expressions found in styling formats, e.g. TTML and CSS. + * + * @see <a href="https://w3c.github.io/webvtt/#styling">WebVTT CSS Styling</a> + * @see <a href="https://www.w3.org/TR/ttml2/">Timed Text Markup Language 2 (TTML2) - 10.3.5</a> + */ +public final class ColorParser { + + private static final String RGB = "rgb"; + private static final String RGBA = "rgba"; + + private static final Pattern RGB_PATTERN = Pattern.compile( + "^rgb\\((\\d{1,3}),(\\d{1,3}),(\\d{1,3})\\)$"); + + private static final Pattern RGBA_PATTERN_INT_ALPHA = Pattern.compile( + "^rgba\\((\\d{1,3}),(\\d{1,3}),(\\d{1,3}),(\\d{1,3})\\)$"); + + private static final Pattern RGBA_PATTERN_FLOAT_ALPHA = Pattern.compile( + "^rgba\\((\\d{1,3}),(\\d{1,3}),(\\d{1,3}),(\\d*\\.?\\d*?)\\)$"); + + private static final Map<String, Integer> COLOR_MAP; + + /** + * Parses a TTML color expression. + * + * @param colorExpression The color expression. + * @return The parsed ARGB color. + */ + public static int parseTtmlColor(String colorExpression) { + return parseColorInternal(colorExpression, false); + } + + /** + * Parses a CSS color expression. + * + * @param colorExpression The color expression. + * @return The parsed ARGB color. + */ + public static int parseCssColor(String colorExpression) { + return parseColorInternal(colorExpression, true); + } + + private static int parseColorInternal(String colorExpression, boolean alphaHasFloatFormat) { + Assertions.checkArgument(!TextUtils.isEmpty(colorExpression)); + colorExpression = colorExpression.replace(" ", ""); + if (colorExpression.charAt(0) == '#') { + // Parse using Long to avoid failure when colorExpression is greater than #7FFFFFFF. + int color = (int) Long.parseLong(colorExpression.substring(1), 16); + if (colorExpression.length() == 7) { + // Set the alpha value + color |= 0xFF000000; + } else if (colorExpression.length() == 9) { + // We have #RRGGBBAA, but we need #AARRGGBB + color = ((color & 0xFF) << 24) | (color >>> 8); + } else { + throw new IllegalArgumentException(); + } + return color; + } else if (colorExpression.startsWith(RGBA)) { + Matcher matcher = (alphaHasFloatFormat ? RGBA_PATTERN_FLOAT_ALPHA : RGBA_PATTERN_INT_ALPHA) + .matcher(colorExpression); + if (matcher.matches()) { + return argb( + alphaHasFloatFormat ? (int) (255 * Float.parseFloat(matcher.group(4))) + : Integer.parseInt(matcher.group(4), 10), + Integer.parseInt(matcher.group(1), 10), + Integer.parseInt(matcher.group(2), 10), + Integer.parseInt(matcher.group(3), 10) + ); + } + } else if (colorExpression.startsWith(RGB)) { + Matcher matcher = RGB_PATTERN.matcher(colorExpression); + if (matcher.matches()) { + return rgb( + Integer.parseInt(matcher.group(1), 10), + Integer.parseInt(matcher.group(2), 10), + Integer.parseInt(matcher.group(3), 10) + ); + } + } else { + // we use our own color map + Integer color = COLOR_MAP.get(Util.toLowerInvariant(colorExpression)); + if (color != null) { + return color; + } + } + throw new IllegalArgumentException(); + } + + private static int argb(int alpha, int red, int green, int blue) { + return (alpha << 24) | (red << 16) | (green << 8) | blue; + } + + private static int rgb(int red, int green, int blue) { + return argb(0xFF, red, green, blue); + } + + static { + COLOR_MAP = new HashMap<>(); + COLOR_MAP.put("aliceblue", 0xFFF0F8FF); + COLOR_MAP.put("antiquewhite", 0xFFFAEBD7); + COLOR_MAP.put("aqua", 0xFF00FFFF); + COLOR_MAP.put("aquamarine", 0xFF7FFFD4); + COLOR_MAP.put("azure", 0xFFF0FFFF); + COLOR_MAP.put("beige", 0xFFF5F5DC); + COLOR_MAP.put("bisque", 0xFFFFE4C4); + COLOR_MAP.put("black", 0xFF000000); + COLOR_MAP.put("blanchedalmond", 0xFFFFEBCD); + COLOR_MAP.put("blue", 0xFF0000FF); + COLOR_MAP.put("blueviolet", 0xFF8A2BE2); + COLOR_MAP.put("brown", 0xFFA52A2A); + COLOR_MAP.put("burlywood", 0xFFDEB887); + COLOR_MAP.put("cadetblue", 0xFF5F9EA0); + COLOR_MAP.put("chartreuse", 0xFF7FFF00); + COLOR_MAP.put("chocolate", 0xFFD2691E); + COLOR_MAP.put("coral", 0xFFFF7F50); + COLOR_MAP.put("cornflowerblue", 0xFF6495ED); + COLOR_MAP.put("cornsilk", 0xFFFFF8DC); + COLOR_MAP.put("crimson", 0xFFDC143C); + COLOR_MAP.put("cyan", 0xFF00FFFF); + COLOR_MAP.put("darkblue", 0xFF00008B); + COLOR_MAP.put("darkcyan", 0xFF008B8B); + COLOR_MAP.put("darkgoldenrod", 0xFFB8860B); + COLOR_MAP.put("darkgray", 0xFFA9A9A9); + COLOR_MAP.put("darkgreen", 0xFF006400); + COLOR_MAP.put("darkgrey", 0xFFA9A9A9); + COLOR_MAP.put("darkkhaki", 0xFFBDB76B); + COLOR_MAP.put("darkmagenta", 0xFF8B008B); + COLOR_MAP.put("darkolivegreen", 0xFF556B2F); + COLOR_MAP.put("darkorange", 0xFFFF8C00); + COLOR_MAP.put("darkorchid", 0xFF9932CC); + COLOR_MAP.put("darkred", 0xFF8B0000); + COLOR_MAP.put("darksalmon", 0xFFE9967A); + COLOR_MAP.put("darkseagreen", 0xFF8FBC8F); + COLOR_MAP.put("darkslateblue", 0xFF483D8B); + COLOR_MAP.put("darkslategray", 0xFF2F4F4F); + COLOR_MAP.put("darkslategrey", 0xFF2F4F4F); + COLOR_MAP.put("darkturquoise", 0xFF00CED1); + COLOR_MAP.put("darkviolet", 0xFF9400D3); + COLOR_MAP.put("deeppink", 0xFFFF1493); + COLOR_MAP.put("deepskyblue", 0xFF00BFFF); + COLOR_MAP.put("dimgray", 0xFF696969); + COLOR_MAP.put("dimgrey", 0xFF696969); + COLOR_MAP.put("dodgerblue", 0xFF1E90FF); + COLOR_MAP.put("firebrick", 0xFFB22222); + COLOR_MAP.put("floralwhite", 0xFFFFFAF0); + COLOR_MAP.put("forestgreen", 0xFF228B22); + COLOR_MAP.put("fuchsia", 0xFFFF00FF); + COLOR_MAP.put("gainsboro", 0xFFDCDCDC); + COLOR_MAP.put("ghostwhite", 0xFFF8F8FF); + COLOR_MAP.put("gold", 0xFFFFD700); + COLOR_MAP.put("goldenrod", 0xFFDAA520); + COLOR_MAP.put("gray", 0xFF808080); + COLOR_MAP.put("green", 0xFF008000); + COLOR_MAP.put("greenyellow", 0xFFADFF2F); + COLOR_MAP.put("grey", 0xFF808080); + COLOR_MAP.put("honeydew", 0xFFF0FFF0); + COLOR_MAP.put("hotpink", 0xFFFF69B4); + COLOR_MAP.put("indianred", 0xFFCD5C5C); + COLOR_MAP.put("indigo", 0xFF4B0082); + COLOR_MAP.put("ivory", 0xFFFFFFF0); + COLOR_MAP.put("khaki", 0xFFF0E68C); + COLOR_MAP.put("lavender", 0xFFE6E6FA); + COLOR_MAP.put("lavenderblush", 0xFFFFF0F5); + COLOR_MAP.put("lawngreen", 0xFF7CFC00); + COLOR_MAP.put("lemonchiffon", 0xFFFFFACD); + COLOR_MAP.put("lightblue", 0xFFADD8E6); + COLOR_MAP.put("lightcoral", 0xFFF08080); + COLOR_MAP.put("lightcyan", 0xFFE0FFFF); + COLOR_MAP.put("lightgoldenrodyellow", 0xFFFAFAD2); + COLOR_MAP.put("lightgray", 0xFFD3D3D3); + COLOR_MAP.put("lightgreen", 0xFF90EE90); + COLOR_MAP.put("lightgrey", 0xFFD3D3D3); + COLOR_MAP.put("lightpink", 0xFFFFB6C1); + COLOR_MAP.put("lightsalmon", 0xFFFFA07A); + COLOR_MAP.put("lightseagreen", 0xFF20B2AA); + COLOR_MAP.put("lightskyblue", 0xFF87CEFA); + COLOR_MAP.put("lightslategray", 0xFF778899); + COLOR_MAP.put("lightslategrey", 0xFF778899); + COLOR_MAP.put("lightsteelblue", 0xFFB0C4DE); + COLOR_MAP.put("lightyellow", 0xFFFFFFE0); + COLOR_MAP.put("lime", 0xFF00FF00); + COLOR_MAP.put("limegreen", 0xFF32CD32); + COLOR_MAP.put("linen", 0xFFFAF0E6); + COLOR_MAP.put("magenta", 0xFFFF00FF); + COLOR_MAP.put("maroon", 0xFF800000); + COLOR_MAP.put("mediumaquamarine", 0xFF66CDAA); + COLOR_MAP.put("mediumblue", 0xFF0000CD); + COLOR_MAP.put("mediumorchid", 0xFFBA55D3); + COLOR_MAP.put("mediumpurple", 0xFF9370DB); + COLOR_MAP.put("mediumseagreen", 0xFF3CB371); + COLOR_MAP.put("mediumslateblue", 0xFF7B68EE); + COLOR_MAP.put("mediumspringgreen", 0xFF00FA9A); + COLOR_MAP.put("mediumturquoise", 0xFF48D1CC); + COLOR_MAP.put("mediumvioletred", 0xFFC71585); + COLOR_MAP.put("midnightblue", 0xFF191970); + COLOR_MAP.put("mintcream", 0xFFF5FFFA); + COLOR_MAP.put("mistyrose", 0xFFFFE4E1); + COLOR_MAP.put("moccasin", 0xFFFFE4B5); + COLOR_MAP.put("navajowhite", 0xFFFFDEAD); + COLOR_MAP.put("navy", 0xFF000080); + COLOR_MAP.put("oldlace", 0xFFFDF5E6); + COLOR_MAP.put("olive", 0xFF808000); + COLOR_MAP.put("olivedrab", 0xFF6B8E23); + COLOR_MAP.put("orange", 0xFFFFA500); + COLOR_MAP.put("orangered", 0xFFFF4500); + COLOR_MAP.put("orchid", 0xFFDA70D6); + COLOR_MAP.put("palegoldenrod", 0xFFEEE8AA); + COLOR_MAP.put("palegreen", 0xFF98FB98); + COLOR_MAP.put("paleturquoise", 0xFFAFEEEE); + COLOR_MAP.put("palevioletred", 0xFFDB7093); + COLOR_MAP.put("papayawhip", 0xFFFFEFD5); + COLOR_MAP.put("peachpuff", 0xFFFFDAB9); + COLOR_MAP.put("peru", 0xFFCD853F); + COLOR_MAP.put("pink", 0xFFFFC0CB); + COLOR_MAP.put("plum", 0xFFDDA0DD); + COLOR_MAP.put("powderblue", 0xFFB0E0E6); + COLOR_MAP.put("purple", 0xFF800080); + COLOR_MAP.put("rebeccapurple", 0xFF663399); + COLOR_MAP.put("red", 0xFFFF0000); + COLOR_MAP.put("rosybrown", 0xFFBC8F8F); + COLOR_MAP.put("royalblue", 0xFF4169E1); + COLOR_MAP.put("saddlebrown", 0xFF8B4513); + COLOR_MAP.put("salmon", 0xFFFA8072); + COLOR_MAP.put("sandybrown", 0xFFF4A460); + COLOR_MAP.put("seagreen", 0xFF2E8B57); + COLOR_MAP.put("seashell", 0xFFFFF5EE); + COLOR_MAP.put("sienna", 0xFFA0522D); + COLOR_MAP.put("silver", 0xFFC0C0C0); + COLOR_MAP.put("skyblue", 0xFF87CEEB); + COLOR_MAP.put("slateblue", 0xFF6A5ACD); + COLOR_MAP.put("slategray", 0xFF708090); + COLOR_MAP.put("slategrey", 0xFF708090); + COLOR_MAP.put("snow", 0xFFFFFAFA); + COLOR_MAP.put("springgreen", 0xFF00FF7F); + COLOR_MAP.put("steelblue", 0xFF4682B4); + COLOR_MAP.put("tan", 0xFFD2B48C); + COLOR_MAP.put("teal", 0xFF008080); + COLOR_MAP.put("thistle", 0xFFD8BFD8); + COLOR_MAP.put("tomato", 0xFFFF6347); + COLOR_MAP.put("transparent", 0x00000000); + COLOR_MAP.put("turquoise", 0xFF40E0D0); + COLOR_MAP.put("violet", 0xFFEE82EE); + COLOR_MAP.put("wheat", 0xFFF5DEB3); + COLOR_MAP.put("white", 0xFFFFFFFF); + COLOR_MAP.put("whitesmoke", 0xFFF5F5F5); + COLOR_MAP.put("yellow", 0xFFFFFF00); + COLOR_MAP.put("yellowgreen", 0xFF9ACD32); + } + + private ColorParser() { + // Prevent instantiation. + } +} |