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Adiciona comentários em Color

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Danilo 2024-09-10 09:45:34 -03:00
parent ac70a3c71f
commit 869703d814
1 changed files with 17 additions and 0 deletions
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17
includes/xna/common/color.hpp
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@ -5,6 +5,7 @@
#include "packedvalue.hpp" #include "packedvalue.hpp"
namespace xna { namespace xna {
//Represents a four-component color using red, green, blue, and alpha data.
struct Color : public IPackedVector, public IPackedVectorT<Uint> { struct Color : public IPackedVector, public IPackedVectorT<Uint> {
constexpr Color() = default; constexpr Color() = default;
@ -33,10 +34,13 @@ namespace xna {
virtual void PackFromVector4(Vector4 const& vector) override; virtual void PackFromVector4(Vector4 const& vector) override;
//Converts a non-premultipled alpha color to a color that contains premultiplied alpha.
static Color FromNonPremultiplied(Vector4 const& vector); static Color FromNonPremultiplied(Vector4 const& vector);
//Converts a non-premultipled alpha color to a color that contains premultiplied alpha.
static Color FromNonPremultiplied(Int r, Int g, Int b, Int a); static Color FromNonPremultiplied(Int r, Int g, Int b, Int a);
//Gets a three-component vector representation for this object.
constexpr Vector3 ToVector3() const { constexpr Vector3 ToVector3() const {
Vector3 vector3; Vector3 vector3;
const auto byteMax = static_cast<Uint>(ByteMaxValue); const auto byteMax = static_cast<Uint>(ByteMaxValue);
@ -46,6 +50,7 @@ namespace xna {
return vector3; return vector3;
} }
//Gets a four-component vector representation for this object.
constexpr virtual Vector4 ToVector4() const override { constexpr virtual Vector4 ToVector4() const override {
Vector4 vector4; Vector4 vector4;
const auto byteMax = static_cast<Uint>(ByteMaxValue); const auto byteMax = static_cast<Uint>(ByteMaxValue);
@ -56,48 +61,60 @@ namespace xna {
return vector4; return vector4;
} }
//Gets or sets the red component value of this Color.
constexpr Byte R() const { constexpr Byte R() const {
return static_cast<Byte>(_packedValue); return static_cast<Byte>(_packedValue);
} }
//Gets or sets the red component value of this Color.
constexpr void R(Byte value) { constexpr void R(Byte value) {
_packedValue = _packedValue & (UintMaxValue - 255) | static_cast<Uint>(value); _packedValue = _packedValue & (UintMaxValue - 255) | static_cast<Uint>(value);
} }
//Gets or sets the green component value of this Color.
constexpr Byte G() const { constexpr Byte G() const {
return static_cast<Byte>(_packedValue >> 8); return static_cast<Byte>(_packedValue >> 8);
} }
//Gets or sets the green component value of this Color.
constexpr void G(Byte value) { constexpr void G(Byte value) {
_packedValue = (static_cast<Int>(_packedValue) & -65281 | static_cast<Int>(value) << 8); _packedValue = (static_cast<Int>(_packedValue) & -65281 | static_cast<Int>(value) << 8);
} }
//Gets or sets the blue component value of this Color.
constexpr Byte B() const { constexpr Byte B() const {
return static_cast<Byte>(_packedValue >> 16); return static_cast<Byte>(_packedValue >> 16);
} }
//Gets or sets the blue component value of this Color.
constexpr void B(Byte value) { constexpr void B(Byte value) {
_packedValue = (static_cast<Int>(_packedValue) & -16711681 | static_cast<Int>(value) << 16); _packedValue = (static_cast<Int>(_packedValue) & -16711681 | static_cast<Int>(value) << 16);
} }
//Gets or sets the alpha component value.
constexpr Byte A() const { constexpr Byte A() const {
return static_cast<Byte>(_packedValue >> 24); return static_cast<Byte>(_packedValue >> 24);
} }
//Gets or sets the alpha component value.
constexpr void A(Byte value) { constexpr void A(Byte value) {
_packedValue = (static_cast<Int>(_packedValue) & 16777215 | static_cast<Int>(value) << 24); _packedValue = (static_cast<Int>(_packedValue) & 16777215 | static_cast<Int>(value) << 24);
} }
//Gets or sets the current color as a packed value.
virtual constexpr Uint PackedValue() const override { virtual constexpr Uint PackedValue() const override {
return _packedValue; return _packedValue;
} }
//Gets or sets the current color as a packed value.
virtual constexpr void PackedValue(Uint const& value) override { virtual constexpr void PackedValue(Uint const& value) override {
_packedValue = value; _packedValue = value;
} }
//Linearly interpolate a color.
static Color Lerp(Color const& value1, Color const& value2, float amount); static Color Lerp(Color const& value1, Color const& value2, float amount);
//Multiply each color component by the scale factor.
static constexpr Color Multiply(Color const& value, float scale) { static constexpr Color Multiply(Color const& value, float scale) {
const Uint r = value.R(); const Uint r = value.R();
const Uint g = value.G(); const Uint g = value.G();