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https://github.com/RGBCube/serenity
synced 2025-07-23 09:47:41 +00:00
LibWeb: Use floats instead of doubles for CSS numbers
Using doubles isn't necessary, and they make things slightly bigger and slower, so let's use floats instead.
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parent
1f5b5d3f99
commit
0795b9f7bb
6 changed files with 33 additions and 33 deletions
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@ -27,7 +27,7 @@ String MediaFeatureValue::to_string() const
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[](Length const& length) { return length.to_string(); },
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[](Ratio const& ratio) { return ratio.to_string(); },
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[](Resolution const& resolution) { return resolution.to_string(); },
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[](double number) { return String::number(number); });
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[](float number) { return String::number(number); });
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}
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bool MediaFeatureValue::is_same_type(MediaFeatureValue const& other) const
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@ -37,7 +37,7 @@ bool MediaFeatureValue::is_same_type(MediaFeatureValue const& other) const
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[&](Length const&) { return other.is_length(); },
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[&](Ratio const&) { return other.is_ratio(); },
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[&](Resolution const&) { return other.is_resolution(); },
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[&](double) { return other.is_number(); });
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[&](float) { return other.is_number(); });
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}
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String MediaFeature::to_string() const
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@ -42,7 +42,7 @@ public:
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{
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}
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explicit MediaFeatureValue(double number)
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explicit MediaFeatureValue(float number)
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: m_value(number)
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{
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}
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@ -51,7 +51,7 @@ public:
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bool is_ident() const { return m_value.has<ValueID>(); }
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bool is_length() const { return m_value.has<Length>(); }
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bool is_number() const { return m_value.has<double>(); }
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bool is_number() const { return m_value.has<float>(); }
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bool is_ratio() const { return m_value.has<Ratio>(); }
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bool is_resolution() const { return m_value.has<Resolution>(); }
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bool is_same_type(MediaFeatureValue const& other) const;
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@ -80,14 +80,14 @@ public:
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return m_value.get<Resolution>();
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}
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double number() const
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float number() const
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{
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VERIFY(is_number());
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return m_value.get<double>();
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return m_value.get<float>();
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}
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private:
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Variant<ValueID, Length, Ratio, Resolution, double> m_value;
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Variant<ValueID, Length, Ratio, Resolution, float> m_value;
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};
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// https://www.w3.org/TR/mediaqueries-4/#mq-features
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@ -2476,9 +2476,9 @@ Optional<Color> Parser::parse_color(StyleComponentValueRule const& component_val
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&& g_val.is(Token::Type::Percentage)
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&& b_val.is(Token::Type::Percentage)) {
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u8 r = clamp(lroundf(r_val.percentage() * 2.55), 0, 255);
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u8 g = clamp(lroundf(g_val.percentage() * 2.55), 0, 255);
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u8 b = clamp(lroundf(b_val.percentage() * 2.55), 0, 255);
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u8 r = clamp(lroundf(r_val.percentage() * 2.55f), 0, 255);
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u8 g = clamp(lroundf(g_val.percentage() * 2.55f), 0, 255);
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u8 b = clamp(lroundf(b_val.percentage() * 2.55f), 0, 255);
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return Color(r, g, b);
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}
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} else if (function.name().equals_ignoring_case("rgba")) {
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@ -2498,7 +2498,7 @@ Optional<Color> Parser::parse_color(StyleComponentValueRule const& component_val
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auto r = r_val.to_integer();
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auto g = g_val.to_integer();
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auto b = b_val.to_integer();
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auto a = clamp(lroundf(a_val.number_value() * 255.0), 0, 255);
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auto a = clamp(lroundf(a_val.number_value() * 255.0f), 0, 255);
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if (AK::is_within_range<u8>(r) && AK::is_within_range<u8>(g) && AK::is_within_range<u8>(b))
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return Color(r, g, b, a);
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@ -2512,10 +2512,10 @@ Optional<Color> Parser::parse_color(StyleComponentValueRule const& component_val
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auto b = b_val.percentage();
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auto a = a_val.number_value();
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u8 r_255 = clamp(lroundf(r * 2.55), 0, 255);
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u8 g_255 = clamp(lroundf(g * 2.55), 0, 255);
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u8 b_255 = clamp(lroundf(b * 2.55), 0, 255);
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u8 a_255 = clamp(lroundf(a * 255.0), 0, 255);
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u8 r_255 = clamp(lroundf(r * 2.55f), 0, 255);
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u8 g_255 = clamp(lroundf(g * 2.55f), 0, 255);
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u8 b_255 = clamp(lroundf(b * 2.55f), 0, 255);
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u8 a_255 = clamp(lroundf(a * 255.0f), 0, 255);
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return Color(r_255, g_255, b_255, a_255);
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}
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} else if (function.name().equals_ignoring_case("hsl")) {
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@ -2530,9 +2530,9 @@ Optional<Color> Parser::parse_color(StyleComponentValueRule const& component_val
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&& s_val.is(Token::Type::Percentage)
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&& l_val.is(Token::Type::Percentage)) {
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auto h = static_cast<float>(h_val.number_value());
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auto s = static_cast<float>(s_val.percentage() / 100.0f);
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auto l = static_cast<float>(l_val.percentage() / 100.0f);
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auto h = h_val.number_value();
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auto s = s_val.percentage() / 100.0f;
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auto l = l_val.percentage() / 100.0f;
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return Color::from_hsl(h, s, l);
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}
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} else if (function.name().equals_ignoring_case("hsla")) {
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@ -2549,10 +2549,10 @@ Optional<Color> Parser::parse_color(StyleComponentValueRule const& component_val
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&& l_val.is(Token::Type::Percentage)
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&& a_val.is(Token::Type::Number)) {
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auto h = static_cast<float>(h_val.number_value());
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auto s = static_cast<float>(s_val.percentage() / 100.0f);
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auto l = static_cast<float>(l_val.percentage() / 100.0f);
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auto a = static_cast<float>(a_val.number_value());
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auto h = h_val.number_value();
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auto s = s_val.percentage() / 100.0f;
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auto l = l_val.percentage() / 100.0f;
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auto a = a_val.number_value();
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return Color::from_hsla(h, s, l, a);
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}
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}
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@ -118,7 +118,7 @@ public:
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VERIFY(m_type == Type::Number);
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return m_value.view();
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}
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double number_value() const
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float number_value() const
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{
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VERIFY(m_type == Type::Number);
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return m_number_value;
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@ -135,14 +135,14 @@ public:
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VERIFY(m_type == Type::Dimension);
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return m_unit.view();
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}
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double dimension_value() const
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float dimension_value() const
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{
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VERIFY(m_type == Type::Dimension);
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return m_number_value;
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}
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i64 dimension_value_int() const { return to_closest_integer(dimension_value()); }
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double percentage() const
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float percentage() const
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{
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VERIFY(m_type == Type::Percentage);
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return m_number_value;
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@ -165,22 +165,22 @@ public:
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Position const& end_position() const { return m_end_position; }
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private:
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static i64 to_closest_integer(double value)
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static i64 to_closest_integer(float value)
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{
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// https://www.w3.org/TR/css-values-4/#numeric-types
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// When a value cannot be explicitly supported due to range/precision limitations, it must be converted
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// to the closest value supported by the implementation, but how the implementation defines "closest"
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// is explicitly undefined as well.
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return llround(value);
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return llroundf(value);
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}
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Type m_type { Type::Invalid };
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FlyString m_value;
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FlyString m_unit;
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HashType m_hash_type { HashType::Unrestricted };
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float m_number_value { 0 };
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NumberType m_number_type { NumberType::Integer };
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double m_number_value { 0 };
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HashType m_hash_type { HashType::Unrestricted };
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Position m_start_position;
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Position m_end_position;
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@ -557,7 +557,7 @@ CSSNumber Tokenizer::consume_a_number()
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}
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// https://www.w3.org/TR/css-syntax-3/#convert-string-to-number
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double Tokenizer::convert_a_string_to_a_number(StringView string)
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float Tokenizer::convert_a_string_to_a_number(StringView string)
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{
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auto code_point_at = [&](size_t index) -> u32 {
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if (index < string.length())
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@ -630,7 +630,7 @@ double Tokenizer::convert_a_string_to_a_number(StringView string)
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VERIFY(position == string.length());
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// Return the number s·(i + f·10^-d)·10^te.
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return sign * (integer_part + fractional_part * pow(10, -fractional_digits)) * pow(10, exponent_sign * exponent);
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return sign * (integer_part + fractional_part * powf(10, -fractional_digits)) * powf(10, exponent_sign * exponent);
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}
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// https://www.w3.org/TR/css-syntax-3/#consume-name
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@ -60,7 +60,7 @@ public:
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class CSSNumber {
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public:
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String string;
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double value { 0 };
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float value { 0 };
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Token::NumberType type {};
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};
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@ -90,7 +90,7 @@ private:
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[[nodiscard]] Token consume_a_numeric_token();
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[[nodiscard]] Token consume_an_ident_like_token();
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[[nodiscard]] CSSNumber consume_a_number();
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[[nodiscard]] double convert_a_string_to_a_number(StringView);
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[[nodiscard]] float convert_a_string_to_a_number(StringView);
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[[nodiscard]] String consume_a_name();
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[[nodiscard]] u32 consume_escaped_code_point();
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[[nodiscard]] Token consume_a_url_token();
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