blob: 0101632c565988d6238dce687541bf81d22e465b [file] [log] [blame]
/*
* Copyright 2006 The Android Open Source Project
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "include/utils/SkParse.h"
#include "include/core/SkColor.h"
#include "include/core/SkTypes.h"
#include <algorithm>
#include <cstddef>
#include <cstdint>
#include <iterator>
#include <string>
static constexpr const char* gColorNames[] = {
"aliceblue",
"antiquewhite",
"aqua",
"aquamarine",
"azure",
"beige",
"bisque",
"black",
"blanchedalmond",
"blue",
"blueviolet",
"brown",
"burlywood",
"cadetblue",
"chartreuse",
"chocolate",
"coral",
"cornflowerblue",
"cornsilk",
"crimson",
"cyan",
"darkblue",
"darkcyan",
"darkgoldenrod",
"darkgray",
"darkgreen",
"darkkhaki",
"darkmagenta",
"darkolivegreen",
"darkorange",
"darkorchid",
"darkred",
"darksalmon",
"darkseagreen",
"darkslateblue",
"darkslategray",
"darkturquoise",
"darkviolet",
"deeppink",
"deepskyblue",
"dimgray",
"dodgerblue",
"firebrick",
"floralwhite",
"forestgreen",
"fuchsia",
"gainsboro",
"ghostwhite",
"gold",
"goldenrod",
"gray",
"green",
"greenyellow",
"honeydew",
"hotpink",
"indianred",
"indigo",
"ivory",
"khaki",
"lavender",
"lavenderblush",
"lawngreen",
"lemonchiffon",
"lightblue",
"lightcoral",
"lightcyan",
"lightgoldenrodyellow",
"lightgreen",
"lightgrey",
"lightpink",
"lightsalmon",
"lightseagreen",
"lightskyblue",
"lightslategray",
"lightsteelblue",
"lightyellow",
"lime",
"limegreen",
"linen",
"magenta",
"maroon",
"mediumaquamarine",
"mediumblue",
"mediumorchid",
"mediumpurple",
"mediumseagreen",
"mediumslateblue",
"mediumspringgreen",
"mediumturquoise",
"mediumvioletred",
"midnightblue",
"mintcream",
"mistyrose",
"moccasin",
"navajowhite",
"navy",
"oldlace",
"olive",
"olivedrab",
"orange",
"orangered",
"orchid",
"palegoldenrod",
"palegreen",
"paleturquoise",
"palevioletred",
"papayawhip",
"peachpuff",
"peru",
"pink",
"plum",
"powderblue",
"purple",
"red",
"rosybrown",
"royalblue",
"saddlebrown",
"salmon",
"sandybrown",
"seagreen",
"seashell",
"sienna",
"silver",
"skyblue",
"slateblue",
"slategray",
"snow",
"springgreen",
"steelblue",
"tan",
"teal",
"thistle",
"tomato",
"turquoise",
"violet",
"wheat",
"white",
"whitesmoke",
"yellow",
"yellowgreen",
};
static constexpr struct ColorRec {
uint8_t r, g, b;
} gColors[] = {
{ 0xf0,0xf8,0xff }, // aliceblue
{ 0xfa,0xeb,0xd7 }, // antiquewhite
{ 0x00,0xff,0xff }, // aqua
{ 0x7f,0xff,0xd4 }, // aquamarine
{ 0xf0,0xff,0xff }, // azure
{ 0xf5,0xf5,0xdc }, // beige
{ 0xff,0xe4,0xc4 }, // bisque
{ 0x00,0x00,0x00 }, // black
{ 0xff,0xeb,0xcd }, // blanchedalmond
{ 0x00,0x00,0xff }, // blue
{ 0x8a,0x2b,0xe2 }, // blueviolet
{ 0xa5,0x2a,0x2a }, // brown
{ 0xde,0xb8,0x87 }, // burlywood
{ 0x5f,0x9e,0xa0 }, // cadetblue
{ 0x7f,0xff,0x00 }, // chartreuse
{ 0xd2,0x69,0x1e }, // chocolate
{ 0xff,0x7f,0x50 }, // coral
{ 0x64,0x95,0xed }, // cornflowerblue
{ 0xff,0xf8,0xdc }, // cornsilk
{ 0xdc,0x14,0x3c }, // crimson
{ 0x00,0xff,0xff }, // cyan
{ 0x00,0x00,0x8b }, // darkblue
{ 0x00,0x8b,0x8b }, // darkcyan
{ 0xb8,0x86,0x0b }, // darkgoldenrod
{ 0xa9,0xa9,0xa9 }, // darkgray
{ 0x00,0x64,0x00 }, // darkgreen
{ 0xbd,0xb7,0x6b }, // darkkhaki
{ 0x8b,0x00,0x8b }, // darkmagenta
{ 0x55,0x6b,0x2f }, // darkolivegreen
{ 0xff,0x8c,0x00 }, // darkorange
{ 0x99,0x32,0xcc }, // darkorchid
{ 0x8b,0x00,0x00 }, // darkred
{ 0xe9,0x96,0x7a }, // darksalmon
{ 0x8f,0xbc,0x8f }, // darkseagreen
{ 0x48,0x3d,0x8b }, // darkslateblue
{ 0x2f,0x4f,0x4f }, // darkslategray
{ 0x00,0xce,0xd1 }, // darkturquoise
{ 0x94,0x00,0xd3 }, // darkviolet
{ 0xff,0x14,0x93 }, // deeppink
{ 0x00,0xbf,0xff }, // deepskyblue
{ 0x69,0x69,0x69 }, // dimgray
{ 0x1e,0x90,0xff }, // dodgerblue
{ 0xb2,0x22,0x22 }, // firebrick
{ 0xff,0xfa,0xf0 }, // floralwhite
{ 0x22,0x8b,0x22 }, // forestgreen
{ 0xff,0x00,0xff }, // fuchsia
{ 0xdc,0xdc,0xdc }, // gainsboro
{ 0xf8,0xf8,0xff }, // ghostwhite
{ 0xff,0xd7,0x00 }, // gold
{ 0xda,0xa5,0x20 }, // goldenrod
{ 0x80,0x80,0x80 }, // gray
{ 0x00,0x80,0x00 }, // green
{ 0xad,0xff,0x2f }, // greenyellow
{ 0xf0,0xff,0xf0 }, // honeydew
{ 0xff,0x69,0xb4 }, // hotpink
{ 0xcd,0x5c,0x5c }, // indianred
{ 0x4b,0x00,0x82 }, // indigo
{ 0xff,0xff,0xf0 }, // ivory
{ 0xf0,0xe6,0x8c }, // khaki
{ 0xe6,0xe6,0xfa }, // lavender
{ 0xff,0xf0,0xf5 }, // lavenderblush
{ 0x7c,0xfc,0x00 }, // lawngreen
{ 0xff,0xfa,0xcd }, // lemonchiffon
{ 0xad,0xd8,0xe6 }, // lightblue
{ 0xf0,0x80,0x80 }, // lightcoral
{ 0xe0,0xff,0xff }, // lightcyan
{ 0xfa,0xfa,0xd2 }, // lightgoldenrodyellow
{ 0x90,0xee,0x90 }, // lightgreen
{ 0xd3,0xd3,0xd3 }, // lightgrey
{ 0xff,0xb6,0xc1 }, // lightpink
{ 0xff,0xa0,0x7a }, // lightsalmon
{ 0x20,0xb2,0xaa }, // lightseagreen
{ 0x87,0xce,0xfa }, // lightskyblue
{ 0x77,0x88,0x99 }, // lightslategray
{ 0xb0,0xc4,0xde }, // lightsteelblue
{ 0xff,0xff,0xe0 }, // lightyellow
{ 0x00,0xff,0x00 }, // lime
{ 0x32,0xcd,0x32 }, // limegreen
{ 0xfa,0xf0,0xe6 }, // linen
{ 0xff,0x00,0xff }, // magenta
{ 0x80,0x00,0x00 }, // maroon
{ 0x66,0xcd,0xaa }, // mediumaquamarine
{ 0x00,0x00,0xcd }, // mediumblue
{ 0xba,0x55,0xd3 }, // mediumorchid
{ 0x93,0x70,0xdb }, // mediumpurple
{ 0x3c,0xb3,0x71 }, // mediumseagreen
{ 0x7b,0x68,0xee }, // mediumslateblue
{ 0x00,0xfa,0x9a }, // mediumspringgreen
{ 0x48,0xd1,0xcc }, // mediumturquoise
{ 0xc7,0x15,0x85 }, // mediumvioletred
{ 0x19,0x19,0x70 }, // midnightblue
{ 0xf5,0xff,0xfa }, // mintcream
{ 0xff,0xe4,0xe1 }, // mistyrose
{ 0xff,0xe4,0xb5 }, // moccasin
{ 0xff,0xde,0xad }, // navajowhite
{ 0x00,0x00,0x80 }, // navy
{ 0xfd,0xf5,0xe6 }, // oldlace
{ 0x80,0x80,0x00 }, // olive
{ 0x6b,0x8e,0x23 }, // olivedrab
{ 0xff,0xa5,0x00 }, // orange
{ 0xff,0x45,0x00 }, // orangered
{ 0xda,0x70,0xd6 }, // orchid
{ 0xee,0xe8,0xaa }, // palegoldenrod
{ 0x98,0xfb,0x98 }, // palegreen
{ 0xaf,0xee,0xee }, // paleturquoise
{ 0xdb,0x70,0x93 }, // palevioletred
{ 0xff,0xef,0xd5 }, // papayawhip
{ 0xff,0xda,0xb9 }, // peachpuff
{ 0xcd,0x85,0x3f }, // peru
{ 0xff,0xc0,0xcb }, // pink
{ 0xdd,0xa0,0xdd }, // plum
{ 0xb0,0xe0,0xe6 }, // powderblue
{ 0x80,0x00,0x80 }, // purple
{ 0xff,0x00,0x00 }, // red
{ 0xbc,0x8f,0x8f }, // rosybrown
{ 0x41,0x69,0xe1 }, // royalblue
{ 0x8b,0x45,0x13 }, // saddlebrown
{ 0xfa,0x80,0x72 }, // salmon
{ 0xf4,0xa4,0x60 }, // sandybrown
{ 0x2e,0x8b,0x57 }, // seagreen
{ 0xff,0xf5,0xee }, // seashell
{ 0xa0,0x52,0x2d }, // sienna
{ 0xc0,0xc0,0xc0 }, // silver
{ 0x87,0xce,0xeb }, // skyblue
{ 0x6a,0x5a,0xcd }, // slateblue
{ 0x70,0x80,0x90 }, // slategray
{ 0xff,0xfa,0xfa }, // snow
{ 0x00,0xff,0x7f }, // springgreen
{ 0x46,0x82,0xb4 }, // steelblue
{ 0xd2,0xb4,0x8c }, // tan
{ 0x00,0x80,0x80 }, // teal
{ 0xd8,0xbf,0xd8 }, // thistle
{ 0xff,0x63,0x47 }, // tomato
{ 0x40,0xe0,0xd0 }, // turquoise
{ 0xee,0x82,0xee }, // violet
{ 0xf5,0xde,0xb3 }, // wheat
{ 0xff,0xff,0xff }, // white
{ 0xf5,0xf5,0xf5 }, // whitesmoke
{ 0xff,0xff,0x00 }, // yellow
{ 0x9a,0xcd,0x32 }, // yellowgreen
};
const char* SkParse::FindNamedColor(const char* name, size_t len, SkColor* color) {
const auto rec = std::lower_bound(std::begin(gColorNames),
std::end (gColorNames),
name, // key
[](const char* name, const char* key) {
return strcmp(name, key) < 0;
});
if (rec == std::end(gColorNames) || 0 != strcmp(name, *rec)) {
return nullptr;
}
if (color) {
int index = rec - gColorNames;
*color = SkColorSetRGB(gColors[index].r, gColors[index].g, gColors[index].b);
}
return name + strlen(*rec);
}
// !!! move to char utilities
//static int count_separators(const char* str, const char* sep) {
// char c;
// int separators = 0;
// while ((c = *str++) != '\0') {
// if (strchr(sep, c) == nullptr)
// continue;
// do {
// if ((c = *str++) == '\0')
// goto goHome;
// } while (strchr(sep, c) != nullptr);
// separators++;
// }
//goHome:
// return separators;
//}
static inline unsigned nib2byte(unsigned n)
{
SkASSERT((n & ~0xF) == 0);
return (n << 4) | n;
}
const char* SkParse::FindColor(const char* value, SkColor* colorPtr) {
unsigned int oldAlpha = SkColorGetA(*colorPtr);
if (value[0] == '#') {
uint32_t hex;
const char* end = SkParse::FindHex(value + 1, &hex);
// SkASSERT(end);
if (end == nullptr)
return end;
size_t len = end - value - 1;
if (len == 3 || len == 4) {
unsigned a = len == 4 ? nib2byte(hex >> 12) : oldAlpha;
unsigned r = nib2byte((hex >> 8) & 0xF);
unsigned g = nib2byte((hex >> 4) & 0xF);
unsigned b = nib2byte(hex & 0xF);
*colorPtr = SkColorSetARGB(a, r, g, b);
return end;
} else if (len == 6 || len == 8) {
if (len == 6)
hex |= oldAlpha << 24;
*colorPtr = hex;
return end;
} else {
// SkASSERT(0);
return nullptr;
}
// } else if (strchr(value, ',')) {
// SkScalar array[4];
// int count = count_separators(value, ",") + 1; // !!! count commas, add 1
// SkASSERT(count == 3 || count == 4);
// array[0] = SK_Scalar1 * 255;
// const char* end = SkParse::FindScalars(value, &array[4 - count], count);
// if (end == nullptr)
// return nullptr;
// !!! range check for errors?
// *colorPtr = SkColorSetARGB(SkScalarRoundToInt(array[0]), SkScalarRoundToInt(array[1]),
// SkScalarRoundToInt(array[2]), SkScalarRoundToInt(array[3]));
// return end;
} else
return FindNamedColor(value, strlen(value), colorPtr);
}