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Everywhere: Add -Wdouble-promotion warning

Browse source 
This warning informs of float-to-double conversions. The best solution
seems to be to do math *either* in 32-bit *or* in 64-bit, and only to
cross over when absolutely necessary.
This commit is contained in:
Nicholas-Baron 2021-04-15 00:36:14 -07:00 • committed by Andreas Kling
parent 6606d70826
commit 73dd293ec4
26 changed files with 105 additions and 98 deletions
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10
Userland/Libraries/LibGfx/Gamma.h
View file

@ -95,7 +95,7 @@ inline f32x4 gamma_accurate_lerp4(f32x4 v1, f32x4 v2, float mix)
// Assumes x is in range [0, 1]
constexpr float gamma_to_linear(float x)
{
return (0.8 + 0.2 * x) * x * x;
return (0.8f + 0.2f * x) * x * x;
}
// Transform scalar from linear space to gamma2.2 space
@ -105,7 +105,7 @@ inline float linear_to_gamma(float x)
// Source for approximation: https://mimosa-pudica.net/fast-gamma/
constexpr float a = 0.00279491;
constexpr float b = 1.15907984;
float c = (b / sqrt(1 + a)) - 1;
float c = (b / sqrtf(1 + a)) - 1;
return ((b / __builtin_sqrtf(x + a)) - c) * x;
}
@ -135,9 +135,9 @@ inline Color gamma_accurate_blend(Color a, Color b, float mix)
return Color(out[0], out[1], out[2]);
# else
return {
static_cast<u8>(255. * gamma_accurate_lerp(a.red() / 255., b.red() / 255., mix)),
static_cast<u8>(255. * gamma_accurate_lerp(a.green() / 255., b.green() / 255., mix)),
static_cast<u8>(255. * gamma_accurate_lerp(a.blue() / 255., b.blue() / 255., mix)),
static_cast<u8>(255.f * gamma_accurate_lerp(a.red() / 255.f, b.red() / 255.f, mix)),
static_cast<u8>(255.f * gamma_accurate_lerp(a.green() / 255.f, b.green() / 255.f, mix)),
static_cast<u8>(255.f * gamma_accurate_lerp(a.blue() / 255.f, b.blue() / 255.f, mix)),
};
# endif
}

2
Userland/Libraries/LibGfx/Painter.cpp
View file

@ -299,7 +299,7 @@ void Painter::draw_ellipse_intersecting(const IntRect& rect, Color color, int th
return (sin(theta) * rect.height() / sqrt(2)) + rect.center().y();
};
for (float theta = 0; theta < 2 * M_PI; theta += increment) {
for (auto theta = 0.0; theta < 2 * M_PI; theta += increment) {
draw_line({ ellipse_x(theta), ellipse_y(theta) }, { ellipse_x(theta + increment), ellipse_y(theta + increment) }, color, thickness);
}
}

8
Userland/Libraries/LibGfx/Path.cpp
View file

@ -75,8 +75,8 @@ void Path::elliptical_arc_to(const FloatPoint& point, const FloatPoint& radii, d
// Find (cx, cy), theta_1, theta_delta
// Step 1: Compute (x1', y1')
auto x_avg = (last_point.x() - next_point.x()) / 2.0f;
auto y_avg = (last_point.y() - next_point.y()) / 2.0f;
auto x_avg = static_cast<double>(last_point.x() - next_point.x()) / 2.0;
auto y_avg = static_cast<double>(last_point.y() - next_point.y()) / 2.0;
auto x1p = x_axis_rotation_c * x_avg + x_axis_rotation_s * y_avg;
auto y1p = -x_axis_rotation_s * x_avg + x_axis_rotation_c * y_avg;
@ -118,7 +118,7 @@ void Path::elliptical_arc_to(const FloatPoint& point, const FloatPoint& radii, d
auto theta_delta = theta_2 - theta_1;
if (!sweep && theta_delta > 0.0f) {
if (!sweep && theta_delta > 0.0) {
theta_delta -= 2 * M_PI;
} else if (sweep && theta_delta < 0) {
theta_delta += 2 * M_PI;
@ -226,7 +226,7 @@ String Path::to_string() const
break;
case Segment::Type::EllipticalArcTo: {
auto& arc = static_cast<const EllipticalArcSegment&>(segment);
builder.appendf(", %s, %s, %f, %f, %f",
builder.appendff(", {}, {}, {}, {}, {}",
arc.radii().to_string().characters(),
arc.center().to_string().characters(),
arc.x_axis_rotation(),

2
Userland/Libraries/LibGfx/Rect.cpp
View file

@ -160,7 +160,7 @@ String IntRect::to_string() const
template<>
String FloatRect::to_string() const
{
return String::format("[%f,%f %fx%f]", x(), y(), width(), height());
return String::formatted("[{},{} {}x{}]", x(), y(), width(), height());
}
}

16
Userland/Libraries/LibM/math.cpp
View file

@ -172,9 +172,9 @@ static FloatType internal_to_integer(FloatType x, RoundingMode rounding_mode)
// We could do this ourselves, but this saves us from manually
// handling overflow.
if (extractor.sign)
extractor.d -= 1.0;
extractor.d -= static_cast<FloatType>(1.0);
else
extractor.d += 1.0;
extractor.d += static_cast<FloatType>(1.0);
}
return extractor.d;
@ -339,7 +339,7 @@ static FloatT internal_gamma(FloatT x) NOEXCEPT
}
// Stirling approximation
return sqrtl(2.0 * M_PI / x) * powl(x / M_E, x);
return sqrtl(2.0 * M_PI / static_cast<long double>(x)) * powl(static_cast<long double>(x) / M_E, static_cast<long double>(x));
}
extern "C" {
@ -386,7 +386,7 @@ double cos(double angle) NOEXCEPT
float cosf(float angle) NOEXCEPT
{
return sinf(angle + M_PI_2);
return sinf(angle + static_cast<float>(M_PI_2));
}
long double sinl(long double angle) NOEXCEPT
@ -636,7 +636,7 @@ double fmod(double index, double period) NOEXCEPT
float fmodf(float index, float period) NOEXCEPT
{
return index - trunc(index / period) * period;
return index - truncf(index / period) * period;
}
// FIXME: These aren't exactly like fmod, but these definitions are probably good enough for now
@ -818,7 +818,7 @@ double acos(double x) NOEXCEPT
float acosf(float x) NOEXCEPT
{
return M_PI_2 - asinf(x);
return static_cast<float>(M_PI_2) - asinf(x);
}
long double fabsl(long double value) NOEXCEPT
@ -1104,9 +1104,9 @@ double lgamma_r(double value, int* sign) NOEXCEPT
float lgammaf_r(float value, int* sign) NOEXCEPT
{
if (value == 1.0 || value == 2.0)
if (value == 1.0f || value == 2.0f)
return 0.0;
if (isinf(value) || value == 0.0)
if (isinf(value) || value == 0.0f)
return INFINITY;
float result = logf(internal_gamma(value));
*sign = signbit(result) ? -1 : 1;

40
Userland/Libraries/LibTTF/Glyf.cpp
View file

@ -214,7 +214,7 @@ Rasterizer::Rasterizer(Gfx::IntSize size)
{
m_data.resize(m_size.width() * m_size.height());
for (int i = 0; i < m_size.width() * m_size.height(); i++) {
m_data[i] = 0.0;
m_data[i] = 0.0f;
}
}
@ -234,13 +234,13 @@ RefPtr<Gfx::Bitmap> Rasterizer::accumulate()
for (int x = 0; x < m_size.width(); x++) {
accumulator += m_data[y * m_size.width() + x];
float value = accumulator;
if (value < 0.0) {
if (value < 0.0f) {
value = -value;
}
if (value > 1.0) {
if (value > 1.0f) {
value = 1.0;
}
u8 alpha = value * 255.0;
u8 alpha = value * 255.0f;
bitmap->set_pixel(x, y, base_color.with_alpha(alpha));
}
}
@ -250,31 +250,31 @@ RefPtr<Gfx::Bitmap> Rasterizer::accumulate()
void Rasterizer::draw_line(Gfx::FloatPoint p0, Gfx::FloatPoint p1)
{
// FIXME: Shift x and y according to dy/dx
if (p0.x() < 0.0) {
if (p0.x() < 0.0f) {
p0.set_x(roundf(p0.x()));
}
if (p0.y() < 0.0) {
if (p0.y() < 0.0f) {
p0.set_y(roundf(p0.y()));
}
if (p1.x() < 0.0) {
if (p1.x() < 0.0f) {
p1.set_x(roundf(p1.x()));
}
if (p1.y() < 0.0) {
if (p1.y() < 0.0f) {
p1.set_y(roundf(p1.y()));
}
if (!(p0.x() >= 0.0 && p0.y() >= 0.0 && p0.x() <= m_size.width() && p0.y() <= m_size.height())) {
if (!(p0.x() >= 0.0f && p0.y() >= 0.0f && p0.x() <= m_size.width() && p0.y() <= m_size.height())) {
dbgln("!P0({},{})", p0.x(), p0.y());
return;
}
if (!(p1.x() >= 0.0 && p1.y() >= 0.0 && p1.x() <= m_size.width() && p1.y() <= m_size.height())) {
if (!(p1.x() >= 0.0f && p1.y() >= 0.0f && p1.x() <= m_size.width() && p1.y() <= m_size.height())) {
dbgln("!P1({},{})", p1.x(), p1.y());
return;
}
VERIFY(p0.x() >= 0.0 && p0.y() >= 0.0 && p0.x() <= m_size.width() && p0.y() <= m_size.height());
VERIFY(p1.x() >= 0.0 && p1.y() >= 0.0 && p1.x() <= m_size.width() && p1.y() <= m_size.height());
VERIFY(p0.x() >= 0.0f && p0.y() >= 0.0f && p0.x() <= m_size.width() && p0.y() <= m_size.height());
VERIFY(p1.x() >= 0.0f && p1.y() >= 0.0f && p1.x() <= m_size.width() && p1.y() <= m_size.height());
// If we're on the same Y, there's no need to draw
if (p0.y() == p1.y()) {
@ -300,8 +300,8 @@ void Rasterizer::draw_line(Gfx::FloatPoint p0, Gfx::FloatPoint p1)
float dy = min(y + 1.0f, p1.y()) - max((float)y, p0.y());
float directed_dy = dy * direction;
float x_next = x_cur + dy * dxdy;
if (x_next < 0.0) {
x_next = 0.0;
if (x_next < 0.0f) {
x_next = 0.0f;
}
float x0 = x_cur;
float x1 = x_next;
@ -313,19 +313,19 @@ void Rasterizer::draw_line(Gfx::FloatPoint p0, Gfx::FloatPoint p1)
float x1_ceil = ceil(x1);
u32 x0i = x0_floor;
if (x1_ceil <= x0_floor + 1.0) {
if (x1_ceil <= x0_floor + 1.0f) {
// If x0 and x1 are within the same pixel, then area to the right is (1 - (mid(x0, x1) - x0_floor)) * dy
float area = ((x0 + x1) * 0.5) - x0_floor;
m_data[line_offset + x0i] += directed_dy * (1.0 - area);
float area = ((x0 + x1) * 0.5f) - x0_floor;
m_data[line_offset + x0i] += directed_dy * (1.0f - area);
m_data[line_offset + x0i + 1] += directed_dy * area;
} else {
float dydx = 1.0 / dxdy;
float dydx = 1.0f / dxdy;
if (dydx < 0)
dydx = -dydx;
float x0_right = 1.0 - (x0 - x0_floor);
float x0_right = 1.0f - (x0 - x0_floor);
u32 x1_floor_i = floor(x1);
float area_upto_here = 0.5 * x0_right * x0_right * dydx;
float area_upto_here = 0.5f * x0_right * x0_right * dydx;
m_data[line_offset + x0i] += direction * area_upto_here;
for (u32 x = x0i + 1; x < x1_floor_i; x++) {
m_data[line_offset + x] += direction * dydx;

2
Userland/Libraries/LibWeb/CSS/Length.h
View file

@ -73,7 +73,7 @@ public:
if (is_undefined())
return fallback_for_undefined;
if (is_percentage())
return make_px(raw_value() / 100.0 * reference_for_percent);
return make_px(raw_value() / 100.0f * reference_for_percent);
if (is_relative())
return make_px(to_px(layout_node));
return *this;

4
Userland/Libraries/LibWeb/Dump.cpp
View file

@ -189,7 +189,7 @@ void dump_tree(StringBuilder& builder, const Layout::Node& layout_node, bool sho
if (show_box_model) {
// Dump the horizontal box properties
builder.appendf(" [%g+%g+%g %g %g+%g+%g]",
builder.appendff(" [{}+{}+{} {} {}+{}+{}]",
box.box_model().margin.left,
box.box_model().border.left,
box.box_model().padding.left,
@ -199,7 +199,7 @@ void dump_tree(StringBuilder& builder, const Layout::Node& layout_node, bool sho
box.box_model().margin.right);
// And the vertical box properties
builder.appendf(" [%g+%g+%g %g %g+%g+%g]",
builder.appendff(" [{}+{}+{} {} {}+{}+{}]",
box.box_model().margin.top,
box.box_model().border.top,
box.box_model().padding.top,

12
Userland/Libraries/LibWeb/HTML/CanvasRenderingContext2D.cpp
View file

@ -219,13 +219,13 @@ DOM::ExceptionOr<void> CanvasRenderingContext2D::ellipse(float x, float y, float
if (radius_y < 0)
return DOM::IndexSizeError::create(String::formatted("The minor-axis radius provided ({}) is negative.", radius_y));
if ((!counter_clockwise && (end_angle - start_angle) >= M_TAU)
|| (counter_clockwise && (start_angle - end_angle) >= M_TAU)) {
if (constexpr float tau = M_TAU; (!counter_clockwise && (end_angle - start_angle) >= tau)
|| (counter_clockwise && (start_angle - end_angle) >= tau)) {
start_angle = 0;
end_angle = M_TAU;
end_angle = tau;
} else {
start_angle = fmodf(start_angle, M_TAU);
end_angle = fmodf(end_angle, M_TAU);
start_angle = fmodf(start_angle, tau);
end_angle = fmodf(end_angle, tau);
}
// Then, figure out where the ends of the arc are.
@ -263,7 +263,7 @@ DOM::ExceptionOr<void> CanvasRenderingContext2D::ellipse(float x, float y, float
m_path.move_to(start_point);
auto delta_theta = end_angle - start_angle;
double delta_theta = end_angle - start_angle;
// FIXME: This is still goofy for some values.
m_path.elliptical_arc_to(end_point, { radius_x, radius_y }, rotation, delta_theta > M_PI, !counter_clockwise);

2
Userland/Libraries/LibWeb/SVG/SVGPathElement.cpp
View file

@ -516,7 +516,7 @@ Gfx::Path& SVGPathElement::get_path()
case PathInstructionType::EllipticalArc: {
double rx = data[0];
double ry = data[1];
double x_axis_rotation = data[2] * M_DEG2RAD;
double x_axis_rotation = double { data[2] } * M_DEG2RAD;
double large_arc_flag = data[3];
double sweep_flag = data[4];
auto& last_point = path.segments().last().point();