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WalkthroughThe changes refactor the color handling system by replacing the monolithic Changes
Sequence Diagram(s)sequenceDiagram
participant User
participant RGBAColor
participant OKLABColor
User->>RGBAColor: Construct RGBAColor (from floats, ints, or hex)
User->>RGBAColor: Access or modify color components
User->>RGBAColor: Convert to other formats (argb, bgra, abgr)
User->>OKLABColor: convert<RGBAColor, OKLABColor>(rgba)
OKLABColor-->>User: Return OKLABColor instance
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Actionable comments posted: 7
🔭 Outside diff range comments (2)
mr-math.natvis (1)
107-116: 🧹 Nitpick (assertive)Spurious closing brace in the display string
R={r()}, G={g()}, B={b()}, A={a()}}has one brace too many, so Visual Studio will show an Invalid Expression error for the whole visualiser.-<DisplayString>R={r()}, G={g()}, B={b()}, A={a()}}</DisplayString> +<DisplayString>R={r()}, G={g()}, B={b()}, A={a()}</DisplayString>USAGE.md (1)
220-220: 🧹 Nitpick (assertive)Typo:
epsion→epsilon-float eps = mr::epsion<float>(); +float eps = mr::epsilon<float>();
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include/mr-math/color.hpp (3)
include/mr-math/matr.hpp (18)
other(117-126)other(117-117)other(128-133)other(128-128)other(135-140)other(135-135)other(142-150)other(142-142)other(152-158)other(152-152)other(160-166)other(160-160)nodiscard(169-171)nodiscard(173-175)nodiscard(178-191)_data(321-324)_data(383-386)_data(455-458)include/mr-math/operators.hpp (2)
s(133-141)s(134-134)include/mr-math/def.hpp (2)
epsilon(35-37)epsilon(35-35)
tests/misc.cpp (1)
include/mr-math/color.hpp (6)
RGBAColor(76-76)RGBAColor(79-80)RGBAColor(82-83)RGBAColor(86-93)RGBAColor(95-101)RGBAColor(95-95)
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include/mr-math/color.hpp
[error] 29-54: Syntax errors due to invalid use of 'this' keyword in method parameters and undeclared identifiers 'self', 'other', and 'eps'.
[error] 213-213: No matching function for call to 'mr::math::Vec<float, 3>::Vec(mr::math::RGBAColor&)'. Invalid static_cast from RGBAColor to Vec3f.
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🔇 Additional comments (5)
include/mr-math/color.hpp (1)
213-230:convert<RGBAColor, OKLABColor>still fails without the implicit Vec3f conversion
After replacing the “deducing this” operators you must adjust this line:auto v = static_cast<Vec3f>(rgba) * Matr3f{ … };Because
static_cast<Vec3f>(rgba)now works (see earlier fix) this part will compile, but note:
- You need
<cmath>forcbrtf.Vec3f * Matr3flooks backwards – shouldn’t it beMatr3f * Vec3f? Double-check the intended order.No code suggestion here, only a heads-up to verify the math once the build is green.
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[error] 213-213: No matching function for call to 'mr::math::Vec<float, 3>::Vec(mr::math::RGBAColor&)'. Invalid static_cast from RGBAColor to Vec3f.
tests/misc.cpp (4)
34-45: Tests updated to usemr::RGBAColorAll constructor tests have been correctly updated to reference the new
RGBAColortype, including float, integer, and packed‐integer overloads and the user‐defined literal. The assertions align with the implementations ininclude/mr-math/color.hpp.
35-35: Verify default‐constructor behaviorThe test assumes
RGBAColor()yields(0,0,0,0). Please confirm that the default constructor zero‐initializes all channels (including alpha) rather than defaulting alpha to1.0or leaving uninitialized memory.
77-77: Setters test updated toRGBAColorThe setter test now correctly asserts the updated RGBA channel values against the
RGBAColorinstance. Good use ofset(index, value)followingr(…).
94-95: Clarify addition semantics and potential clampingThe test allows channel values to exceed
1.0(e.g., alpha sums to2.0). Please verify whetherRGBAColor::operator+is intended to produce unclamped results or should clamp channels to[0,1]. If clamping is desired, consider adding a saturating‐add function or adjust operator behavior.
| template <typename InputT, typename OutputT> | ||
| OutputT convert(InputT input) { | ||
| static_assert(false, "You have to specify this function for your particular types"); | ||
| } |
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convert is currently unusable – the unconditional static_assert(false) aborts every build
With the present implementation the primary template can never be instantiated, so even a valid call (one that has a full specialization) will trigger the assertion before the compiler has a chance to pick the specialization. Make the assertion dependent on the template parameters:
-template <typename InputT, typename OutputT>
- OutputT convert(InputT input) {
- static_assert(false, "You have to specify this function for your particular types");
- }
+template <typename...>
+inline constexpr bool _always_false_v = false;
+
+template <typename InputT, typename OutputT>
+constexpr OutputT convert(InputT /*unused*/) {
+ static_assert(_always_false_v<InputT, OutputT>,
+ "No `convert` specialization found for the supplied types");
+}This stops the hard error, allows the compiler to look for specializations, and still provides a clear diagnostic when none are found.
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| template <typename InputT, typename OutputT> | |
| OutputT convert(InputT input) { | |
| static_assert(false, "You have to specify this function for your particular types"); | |
| } | |
| template <typename...> | |
| inline constexpr bool _always_false_v = false; | |
| template <typename InputT, typename OutputT> | |
| constexpr OutputT convert(InputT /*unused*/) { | |
| static_assert(_always_false_v<InputT, OutputT>, | |
| "No `convert` specialization found for the supplied types"); | |
| } |
| bool operator==(this const ColorDerived &self, const ColorDerived &other) noexcept { | ||
| return self._data == other._data; | ||
| } | ||
|
|
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| bool equal(this const ColorDerived &self, const ColorDerived &other, ValueT eps = epsilon<ValueT>()) noexcept { | ||
| return self._data.equal(other._data, eps); | ||
| } |
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operator== / equal suffer from the same “deducing this” issue
Rewrite using the conventional form and preserve const-correctness:
-bool operator==(this const ColorDerived &self, const ColorDerived &other) noexcept {
- return self._data == other._data;
-}
-
-bool equal(this const ColorDerived &self, const ColorDerived &other, ValueT eps = epsilon<ValueT>()) noexcept {
- return self._data.equal(other._data, eps);
-}
+constexpr bool operator==(const ColorDerived &other) const noexcept {
+ return static_cast<const ColorDerived &>(*this)._data == other._data;
+}
+
+constexpr bool equal(const ColorDerived &other,
+ ValueT eps = epsilon<ValueT>()) const noexcept {
+ return static_cast<const ColorDerived &>(*this)._data.equal(other._data, eps);
+}This removes the compilation errors and keeps behaviour identical.
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| bool operator==(this const ColorDerived &self, const ColorDerived &other) noexcept { | |
| return self._data == other._data; | |
| } | |
| bool equal(this const ColorDerived &self, const ColorDerived &other, ValueT eps = epsilon<ValueT>()) noexcept { | |
| return self._data.equal(other._data, eps); | |
| } | |
| constexpr bool operator==(const ColorDerived &other) const noexcept { | |
| return static_cast<const ColorDerived &>(*this)._data == other._data; | |
| } | |
| constexpr bool equal(const ColorDerived &other, | |
| ValueT eps = epsilon<ValueT>()) const noexcept { | |
| return static_cast<const ColorDerived &>(*this)._data.equal(other._data, eps); | |
| } |
| // structured binding support | ||
| template <size_t I> requires (I < 4) | ||
| ValueT get(this const ColorDerived &self) { return self._data[I]; } | ||
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| operator Vec3f(this ColorDerived &self) noexcept { | ||
| return (Vec3f)self._data; | ||
| } | ||
|
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| operator Vec4f(this ColorDerived &self) noexcept { | ||
| return self._data; | ||
| } | ||
|
|
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deducing this syntax isn’t yet supported by our tool-chain – replace it with ordinary methods
All the functions that use
operator Vec3f(this ColorDerived &self) / ValueT get(this const ColorDerived &self) etc. are rejected by both GCC 13 and Clang 17 (see CI errors 29-54). A drop-in, C++20-compatible rewrite is straightforward:
-// structured binding support
-template <size_t I> requires (I < 4)
- ValueT get(this const ColorDerived &self) { return self._data[I]; }
-
-operator Vec3f(this ColorDerived &self) noexcept {
- return (Vec3f)self._data;
-}
-
-operator Vec4f(this ColorDerived &self) noexcept {
- return self._data;
-}
+// structured binding support
+template <size_t I> requires (I < 4)
+constexpr ValueT get() const noexcept {
+ static_assert(I < 4);
+ return static_cast<const ColorDerived &>(*this)._data[I];
+}
+
+/* implicit conversions */
+constexpr operator Vec3f() const noexcept {
+ const auto &d = static_cast<const ColorDerived &>(*this)._data;
+ return Vec3f{d.x(), d.y(), d.z()}; // avoid the “no Vec3f(Vec4f) ctor” error
+}
+constexpr operator Vec4f() const noexcept {
+ return static_cast<const ColorDerived &>(*this)._data;
+}Apply the same pattern to every other member that currently relies on the P0847 “deducing this” feature.
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| // structured binding support | |
| template <size_t I> requires (I < 4) | |
| ValueT get(this const ColorDerived &self) { return self._data[I]; } | |
| operator Vec3f(this ColorDerived &self) noexcept { | |
| return (Vec3f)self._data; | |
| } | |
| operator Vec4f(this ColorDerived &self) noexcept { | |
| return self._data; | |
| } | |
| // structured binding support | |
| template <size_t I> requires (I < 4) | |
| constexpr ValueT get() const noexcept { | |
| static_assert(I < 4); | |
| return static_cast<const ColorDerived &>(*this)._data[I]; | |
| } | |
| /* implicit conversions */ | |
| constexpr operator Vec3f() const noexcept { | |
| const auto &d = static_cast<const ColorDerived &>(*this)._data; | |
| return Vec3f{d.x(), d.y(), d.z()}; // avoid the “no Vec3f(Vec4f) ctor” error | |
| } | |
| constexpr operator Vec4f() const noexcept { | |
| return static_cast<const ColorDerived &>(*this)._data; | |
| } |
| friend std::ostream & operator<<(std::ostream &s, const ColorDerived &color) noexcept { | ||
| Vec4u comps = color._data * 255; | ||
| comps.clamp(0, 256); | ||
| s << '#' << std::hex << std::uppercase << comps[0] << comps[1] << comps[2] << comps[3] << std::nouppercase << std::dec; | ||
| return s; | ||
| } |
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🧹 Nitpick (assertive)
operator<< prints incorrect hex and risks narrowing
- Multiplying a
Vec4fby255gives floats; converting them to aVec4uvia implicit ctor may silently floor or truncate. << std::hexstreams the decimal value of every component, not two-digit padded bytes, so#3F3F3F3Fmight appear as#3F3F3F3For#3f3f3f3fdepending on the values ‑ but e.g. component10becomes justA, losing the leading zero.
Consider formatting each channel explicitly:
-Vec4u comps = color._data * 255;
-comps.clamp(0, 256);
-s << '#' << std::hex << std::uppercase << comps[0] << comps[1] << comps[2] << comps[3] << std::nouppercase << std::dec;
+const auto comps = (color._data * 255.0f).clamped(0.0f, 255.0f).round(); // or explicit cast
+s << '#' << std::uppercase << std::hex
+ << std::setw(2) << std::setfill('0') << uint32_t(comps[0])
+ << std::setw(2) << std::setfill('0') << uint32_t(comps[1])
+ << std::setw(2) << std::setfill('0') << uint32_t(comps[2])
+ << std::setw(2) << std::setfill('0') << uint32_t(comps[3])
+ << std::dec << std::nouppercase;Requires <iomanip> and a round()/clamped helper, but produces predictable 8-digit ARGB output.
Committable suggestion skipped: line range outside the PR's diff.
| ColorDerived &operator+=(const ColorDerived &other) noexcept { | ||
| static_cast<ColorDerived*>(this)->_data += other._data; | ||
| return *(ColorDerived*)this; | ||
| } | ||
|
|
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🛠️ Refactor suggestion
Unsafe pointer casts & missing const qualification in operator+=
static_cast<ColorDerived*>(this)->_data += other._data; forces a mutable pointer even when *this is const.
Use a reference, keep qualifiers, and avoid C-style casts:
-ColorDerived &operator+=(const ColorDerived &other) noexcept {
- static_cast<ColorDerived*>(this)->_data += other._data;
- return *(ColorDerived*)this;
-}
+ColorDerived &operator+=(const ColorDerived &other) noexcept {
+ auto &self = static_cast<ColorDerived &>(*this);
+ self._data += other._data;
+ return self;
+}This addresses UB and removes the noisy casts.
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| ColorDerived &operator+=(const ColorDerived &other) noexcept { | |
| static_cast<ColorDerived*>(this)->_data += other._data; | |
| return *(ColorDerived*)this; | |
| } | |
| ColorDerived &operator+=(const ColorDerived &other) noexcept { | |
| auto &self = static_cast<ColorDerived &>(*this); | |
| self._data += other._data; | |
| return self; | |
| } |
| mr::RGBAColor c1; // same as Vec4f(0, 0, 0, 0) | ||
| mr::RGBAColor c2 = mr::Color(0.3, 0.47, 0.8); // == (0.3, 0.47, 0.8, 1.0) | ||
| mr::RGBAColor c3 = mr::Color(76, 119, 204, 255); // == (0.2980392156862745, 0.4666666666666667, 0.8, 1.0) | ||
| mr::RGBAColor c4 = mr::Color(0x4C'77'CC'FF); // == (0.2980392156862745, 0.4666666666666667, 0.8, 1.0) | ||
| mr::RGBAColor c5 = 0x4C'77'CC'FF_rgba; // == (0.2980392156862745, 0.4666666666666667, 0.8, 1.0) | ||
| ``` |
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🧹 Nitpick (assertive)
Examples still reference the removed mr::Color type
The refactor renamed the type to mr::RGBAColor, yet the docs mix both names:
-mr::RGBAColor c2 = mr::Color(0.3, 0.47, 0.8);
-mr::RGBAColor c3 = mr::Color(76, 119, 204, 255);
-mr::RGBAColor c4 = mr::Color(0x4C'77'CC'FF);
+mr::RGBAColor c2{0.3, 0.47, 0.8};
+mr::RGBAColor c3{76, 119, 204, 255};
+mr::RGBAColor c4{0x4C'77'CC'FF};Do the same for the arithmetic example further down (mr::Color(1.0, …) ➜ mr::RGBAColor{…}).
Keeping the docs in sync prevents confusion for consumers.
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| mr::RGBAColor c1; // same as Vec4f(0, 0, 0, 0) | |
| mr::RGBAColor c2 = mr::Color(0.3, 0.47, 0.8); // == (0.3, 0.47, 0.8, 1.0) | |
| mr::RGBAColor c3 = mr::Color(76, 119, 204, 255); // == (0.2980392156862745, 0.4666666666666667, 0.8, 1.0) | |
| mr::RGBAColor c4 = mr::Color(0x4C'77'CC'FF); // == (0.2980392156862745, 0.4666666666666667, 0.8, 1.0) | |
| mr::RGBAColor c5 = 0x4C'77'CC'FF_rgba; // == (0.2980392156862745, 0.4666666666666667, 0.8, 1.0) | |
| ``` | |
| mr::RGBAColor c1; // same as Vec4f(0, 0, 0, 0) | |
| mr::RGBAColor c2{0.3, 0.47, 0.8}; // == (0.3, 0.47, 0.8, 1.0) | |
| mr::RGBAColor c3{76, 119, 204, 255}; // == (0.2980392156862745, 0.4666666666666667, 0.8, 1.0) | |
| mr::RGBAColor c4{0x4C'77'CC'FF}; // == (0.2980392156862745, 0.4666666666666667, 0.8, 1.0) | |
| mr::RGBAColor c5 = 0x4C'77'CC'FF_rgba; // == (0.2980392156862745, 0.4666666666666667, 0.8, 1.0) |
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| const mr::RGBAColor expected1{0.3, 0.47, 0.8, 1.0}; | ||
| EXPECT_EQ(mr::RGBAColor(0.3, 0.47, 0.8), expected1); | ||
| EXPECT_EQ(mr::RGBAColor(mr::Vec4f(0.3, 0.47, 0.8, 1)), expected1); | ||
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| const mr::Color expected2{0.2980392156862745, 0.4666666666666667, 0.8, 1.0}; | ||
| EXPECT_EQ(mr::Color(76, 119, 204, 255), expected2); | ||
| EXPECT_EQ(mr::Color(0x4C'77'CC'FF), expected2); | ||
| const mr::RGBAColor expected2{0.2980392156862745, 0.4666666666666667, 0.8, 1.0}; | ||
| EXPECT_EQ(mr::RGBAColor(76, 119, 204, 255), expected2); | ||
| EXPECT_EQ(mr::RGBAColor(0x4C'77'CC'FF), expected2); | ||
| EXPECT_EQ(0x4C'77'CC'FF_rgba, expected2); |
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🧹 Nitpick (assertive)
Consider using EXPECT_FLOAT_EQ for floating‐point constructor tests
The constructors accepting floats and vectors compare RGBAColor instances via EXPECT_EQ, which relies on operator==. If operator== uses exact float comparison, tiny rounding differences could cause spurious failures. Consider switching to EXPECT_TRUE(equal(...)) or EXPECT_FLOAT_EQ on each component for these tests to tolerate floating‐point precision.
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Actionable comments posted: 2
♻️ Duplicate comments (5)
include/mr-math/color.hpp (5)
17-20: Unconditionalstatic_assertstill prevents all instantiationsThis exact issue was raised in the previous review: the primary template aborts every build even when a matching specialization exists. Make the assertion dependent on the template parameters.
27-38:deducing thisis the cause of the current CI syntax errorsGCC 13 / Clang 17 (our tool-chain) do not support the P0847 “deducing-this” syntax yet. Every use (
get, the two conversion operators) fails to compile (self/other/epsundeclared).
44-48:operator+=still does UB-prone pointer castsCasting away
constand going through a pointer was already flagged; the unsafe pattern is unchanged.
49-55: Equality helpers repeat the unsupported “deducing-this” styleAgain identical to the previously reported issue; the build stops here.
57-62:operator<<prints wrong hex & silently truncates ‑ nothing changedThe earlier suggestions (use
std::setw, explicit rounding, avoid<< std::hexonfloats) are still applicable.
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include/mr-math/color.hpp (4)
include/mr-math/matr.hpp (8)
nodiscard(169-171)nodiscard(173-175)nodiscard(178-191)_data(321-324)_data(383-386)_data(455-458)i(169-169)i(173-173)include/mr-math/operators.hpp (2)
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epsilon(35-37)epsilon(35-35)value(93-93)value(93-93)value(116-116)value(116-116)include/mr-math/vec.hpp (7)
l(165-169)l(172-175)i(84-84)i(84-84)i(95-95)y(86-86)y(86-86)
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include/mr-math/color.hpp
[error] 29-54: Syntax errors due to incorrect use of 'this' keyword in method parameters and undeclared identifiers 'self', 'other', and 'eps'.
[error] 371-371: No matching function for call to 'mr::math::Vec<float, 3>::Vec(mr::math::RGBAColor&)'. Invalid static_cast from RGBAColor to Vec3f.
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| struct HSLAColor { | ||
| friend class ColorBase<HSLAColor>; | ||
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| private: | ||
| Vec4f _data; | ||
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| public: | ||
| using ValueT = float; | ||
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| HSLAColor() = default; | ||
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| template <std::floating_point T> | ||
| HSLAColor(T h, T s, T l, T a = 1) noexcept | ||
| : _data(h, s, l, a) {} | ||
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| HSLAColor(Vec4f hsla) noexcept | ||
| : _data(hsla) {} | ||
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| template <std::integral T> |
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All new colour structs forget to inherit from ColorBase
HSLAColor, HSVAColor, CMYKColor, and OKLABColor only friend the base but do not derive from it, so they do not get:
operator+,operator+=- equality helpers
- structured-binding support
- stream output
…and any future generic utilities.
This is a functional break (e.g. HSLAColor{} can’t be streamed, added, or compared).
Apply the pattern already used for RGBAColor:
-struct HSLAColor {
- friend class ColorBase<HSLAColor>;
+struct HSLAColor : ColorBase<HSLAColor> {
+ friend class ColorBase<HSLAColor>;Repeat the same one-liner change for HSVAColor, CMYKColor, and OKLABColor.
Also applies to: 196-214, 254-272, 312-330
| inline OKLABColor convert<RGBAColor, OKLABColor>(RGBAColor rgba) { | ||
| auto v = static_cast<Vec3f>(rgba) * Matr3f { | ||
| Matr3f::RowT {0.4122214708f, 0.2119034982f, 0.0883024619f}, | ||
| Matr3f::RowT {0.5363325363f, 0.6806995451f, 0.2817188376f}, | ||
| Matr3f::RowT {0.0514459929f, 0.1073969566f, 0.6299787005f}, | ||
| }; | ||
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| // TODO: rewrite using mr-math adaptation of <cmath> | ||
| float l_ = cbrtf(v[0]); | ||
| float m_ = cbrtf(v[1]); | ||
| float s_ = cbrtf(v[2]); | ||
|
|
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🛠️ Refactor suggestion
❓ Verification inconclusive
convert<RGBAColor, OKLABColor> currently fails to compile
static_cast<Vec3f>(rgba)relies on the (unsupported) conversion operator discussed above, causing the pipeline error at line 371.- The multiplication order
Vec3f * Matr3fmay be wrong depending on how the library definesoperator*. Most math libraries expectMatr * Vec, not the other way around.
- auto v = static_cast<Vec3f>(rgba) * Matr3f{
+ Vec3f rgb = {rgba.r(), rgba.g(), rgba.b()};
+ auto v = Matr3f{
{0.4122214708f, 0.2119034982f, 0.0883024619f},
{0.5363325363f, 0.6806995451f, 0.2817188376f},
{0.0514459929f, 0.1073969566f, 0.6299787005f},
- };
+ } * rgb; // matrix-vector productAfter the earlier conversion-operator rewrite, you could switch back to static_cast<Vec3f>(rgba) if desired.
Please confirm the actual operator* signature; run:
🏁 Script executed:
#!/bin/bash
# Show all operator* overloads involving Matr3f and Vec3f
rg -A2 -e 'operator\*.*Matr3f' -t cpp
rg -A2 -e 'operator\*.*Vec3f' -t cppLength of output: 78
I couldn’t find any operator* overloads involving Matr3f or Vec3f with the previous search. Let’s run a broader grep to catch definitions in both headers and sources:
🏁 Script executed:
#!/bin/bash
# Look for any operator* overloads that mention Matr3f or Vec3f
rg -n 'operator\*' -t cpp -t hpp | grep -E 'Matr3f|Vec3f'Length of output: 87
Let’s locate Matr3f’s definition and then search for any operator* there and globally:
🏁 Script executed:
#!/bin/bash
# 1) Find the file that defines Matr3f
def_file=$(rg -l 'struct Matr3f' | head -n1)
echo "Matr3f defined in: $def_file"
# 2) Search for operator* in that file
if [ -n "$def_file" ]; then
echo "—— operator* in $def_file ——"
grep -n 'operator\*' "$def_file" || echo "none"
else
echo "Matr3f definition file not found"
fi
# 3) Search globally for any operator* involving Matr3f or Vec3f
echo "—— global operator* occurrences involving Matr3f/Vec3f ——"
rg -n 'operator\*' | grep -E 'Matr3f|Vec3f' || echo "none"Length of output: 376
Please verify the RGBA→Vec3f conversion and the matrix‐vector multiplication signature
- The use of
static_cast<Vec3f>(rgba)fails because there’s no supported conversion operator fromRGBAColortoVec3f. - We could not locate any
operator*overload forMatr3forVec3fin the codebase. Confirm whether your math library definesMatr3f operator*(Matr3f, Vec3f)Vec3f operator*(Vec3f, Matr3f)
and adjust the multiplication order accordingly.
- auto v = static_cast<Vec3f>(rgba) * Matr3f{
+ Vec3f rgb{ rgba.r(), rgba.g(), rgba.b() };
+ auto v = Matr3f{
{0.4122214708f, 0.2119034982f, 0.0883024619f},
{0.5363325363f, 0.6806995451f, 0.2817188376f},
{0.0514459929f, 0.1073969566f, 0.6299787005f},
- };
+ } * rgb; // matrix * vectorOnce you’ve confirmed or added the proper operator*, you may revert to static_cast<Vec3f>(rgba) if you prefer.
📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| inline OKLABColor convert<RGBAColor, OKLABColor>(RGBAColor rgba) { | |
| auto v = static_cast<Vec3f>(rgba) * Matr3f { | |
| Matr3f::RowT {0.4122214708f, 0.2119034982f, 0.0883024619f}, | |
| Matr3f::RowT {0.5363325363f, 0.6806995451f, 0.2817188376f}, | |
| Matr3f::RowT {0.0514459929f, 0.1073969566f, 0.6299787005f}, | |
| }; | |
| // TODO: rewrite using mr-math adaptation of <cmath> | |
| float l_ = cbrtf(v[0]); | |
| float m_ = cbrtf(v[1]); | |
| float s_ = cbrtf(v[2]); | |
| inline OKLABColor convert<RGBAColor, OKLABColor>(RGBAColor rgba) { | |
| // extract RGB components explicitly | |
| Vec3f rgb{ rgba.r(), rgba.g(), rgba.b() }; | |
| // perform matrix–vector multiply (ensure Matr3f * Vec3f exists) | |
| auto v = Matr3f{ | |
| {0.4122214708f, 0.2119034982f, 0.0883024619f}, | |
| {0.5363325363f, 0.6806995451f, 0.2817188376f}, | |
| {0.0514459929f, 0.1073969566f, 0.6299787005f}, | |
| } * rgb; | |
| // TODO: rewrite using mr-math adaptation of <cmath> | |
| float l_ = cbrtf(v[0]); | |
| float m_ = cbrtf(v[1]); | |
| float s_ = cbrtf(v[2]); | |
| … |
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[error] 371-371: No matching function for call to 'mr::math::Vec<float, 3>::Vec(mr::math::RGBAColor&)'. Invalid static_cast from RGBAColor to Vec3f.
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