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Core/Color: Switch formal from RGBA8 to RGBA32F

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This commit is contained in:
SirLynix
2022-04-23 16:08:15 +02:00
parent de53c88c01
commit e7274b24e9
32 changed files with 331 additions and 196 deletions
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11
include/Nazara/Core/Color.hpp
View File

@@ -19,9 +19,8 @@ namespace Nz
{
public:
inline Color();
inline Color(UInt8 red, UInt8 green, UInt8 blue, UInt8 alpha = 255);
inline explicit Color(UInt8 lightness);
inline Color(UInt8 color[3], UInt8 alpha = 255);
inline Color(float red, float green, float blue, float alpha = 1.f);
inline explicit Color(float lightness);
inline Color(const Color& color) = default;
inline Color(Color&& color) = default;
inline ~Color() = default;
@@ -46,16 +45,20 @@ namespace Nz
static inline Color FromCMYK(float cyan, float magenta, float yellow, float black);
static inline Color FromHSL(float hue, float saturation, float lightness);
static inline Color FromHSV(float hue, float saturation, float value);
static inline Color FromRGB8(UInt8 r, UInt8 g, UInt8 b);
static inline Color FromRGBA8(UInt8 r, UInt8 g, UInt8 b, UInt8 a);
static inline Color FromXYZ(const Vector3f& vec);
static inline Color FromXYZ(float x, float y, float z);
static inline void ToCMY(const Color& color, float* cyan, float* magenta, float* yellow);
static inline void ToCMYK(const Color& color, float* cyan, float* magenta, float* yellow, float* black);
static inline void ToHSL(const Color& color, float* hue, float* saturation, float* lightness);
static inline void ToHSV(const Color& color, float* hue, float* saturation, float* value);
static inline void ToRGB8(const Color& color, UInt8* r, UInt8* g, UInt8* b);
static inline void ToRGBA8(const Color& color, UInt8* r, UInt8* g, UInt8* b, UInt8* a = nullptr);
static inline void ToXYZ(const Color& color, Vector3f* vec);
static inline void ToXYZ(const Color& color, float* x, float* y, float* z);
UInt8 r, g, b, a;
float r, g, b, a;
static NAZARA_CORE_API const Color Black;
static NAZARA_CORE_API const Color Blue;

172
include/Nazara/Core/Color.inl
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@@ -19,7 +19,6 @@ namespace Nz
/*!
* \brief Constructs a Color object by default
*/
inline Color::Color()
{
}
@@ -33,7 +32,7 @@ namespace Nz
* \param alpha Alpha value
*/
inline Color::Color(UInt8 red, UInt8 green, UInt8 blue, UInt8 alpha) :
inline Color::Color(float red, float green, float blue, float alpha) :
r(red),
g(green),
b(blue),
@@ -47,26 +46,11 @@ namespace Nz
* \param lightness Value for r, g and b
*/
inline Color::Color(UInt8 lightness) :
inline Color::Color(float lightness) :
r(lightness),
g(lightness),
b(lightness),
a(255)
{
}
/*!
* \brief Constructs a Color object with values
*
* \param vec[3] vec[0] = red value, vec[1] = green value, vec[2] = blue value
* \param alpha Alpha value
*/
inline Color::Color(UInt8 vec[3], UInt8 alpha) :
r(vec[0]),
g(vec[1]),
b(vec[2]),
a(alpha)
a(1.f)
{
}
@@ -76,7 +60,7 @@ namespace Nz
*/
inline bool Color::IsOpaque() const
{
return a == 255;
return a >= 1.f;
}
/*!
@@ -87,10 +71,10 @@ namespace Nz
inline std::string Color::ToString() const
{
std::ostringstream ss;
ss << "Color(" << static_cast<int>(r) << ", " << static_cast<int>(g) << ", " << static_cast<int>(b);
ss << "Color(" << r << ", " << g << ", " << b;
if (a != 255)
ss << ", " << static_cast<int>(a);
if (!IsOpaque())
ss << ", " << a;
ss << ')';
@@ -106,12 +90,11 @@ namespace Nz
inline Color Color::operator+(const Color& color) const
{
///TODO: Improve this shit
Color c;
c.r = static_cast<UInt8>(std::min(static_cast<unsigned int>(r) + static_cast<unsigned int>(color.r), 255U));
c.g = static_cast<UInt8>(std::min(static_cast<unsigned int>(g) + static_cast<unsigned int>(color.g), 255U));
c.b = static_cast<UInt8>(std::min(static_cast<unsigned int>(b) + static_cast<unsigned int>(color.b), 255U));
c.a = static_cast<UInt8>(std::min(static_cast<unsigned int>(a) + static_cast<unsigned int>(color.a), 255U));
c.r = r + color.r;
c.g = g + color.g;
c.b = b + color.b;
c.a = a + color.a;
return c;
}
@@ -125,12 +108,11 @@ namespace Nz
inline Color Color::operator*(const Color& color) const
{
///TODO: Improve this shit
Color c;
c.r = static_cast<UInt8>((static_cast<unsigned int>(r) * static_cast<unsigned int>(color.r)) / 255U);
c.g = static_cast<UInt8>((static_cast<unsigned int>(g) * static_cast<unsigned int>(color.g)) / 255U);
c.b = static_cast<UInt8>((static_cast<unsigned int>(b) * static_cast<unsigned int>(color.b)) / 255U);
c.a = static_cast<UInt8>((static_cast<unsigned int>(a) * static_cast<unsigned int>(color.a)) / 255U);
c.r = r * color.r;
c.g = g * color.g;
c.b = b * color.b;
c.a = a * color.a;
return c;
}
@@ -168,7 +150,10 @@ namespace Nz
inline bool Color::operator==(const Color& color) const
{
return r == color.r && g == color.g && b == color.b && a == color.a;
return NumberEquals(r, color.r) &&
NumberEquals(g, color.g) &&
NumberEquals(b, color.b) &&
NumberEquals(a, color.a);
}
/*!
@@ -193,10 +178,9 @@ namespace Nz
* \param magenta Magenta component
* \param yellow Yellow component
*/
inline Color Color::FromCMY(float cyan, float magenta, float yellow)
{
return Color(static_cast<UInt8>((1.f-cyan)*255.f), static_cast<UInt8>((1.f-magenta)*255.f), static_cast<UInt8>((1.f-yellow)*255.f));
return Color(1.f - cyan, 1.f - magenta, 1.f - yellow);
}
/*!
@@ -208,7 +192,6 @@ namespace Nz
* \param yellow Yellow component
* \param black Black component
*/
inline Color Color::FromCMYK(float cyan, float magenta, float yellow, float black)
{
return FromCMY(cyan * (1.f - black) + black,
@@ -224,14 +207,10 @@ namespace Nz
* \param saturation Saturation component [0, 1]
* \param lightness Lightness component [0, 1]
*/
inline Color Color::FromHSL(float hue, float saturation, float lightness)
{
if (NumberEquals(saturation, 0.f))
{
// RGB results from 0 to 255
return Color(static_cast<UInt8>(lightness * 255.f));
}
return Color(lightness);
else
{
float v2;
@@ -243,9 +222,9 @@ namespace Nz
float v1 = 2.f * lightness - v2;
float h = hue / 360.f;
return Color(static_cast<UInt8>(255.f * Hue2RGB(v1, v2, h + (1.f/3.f))),
static_cast<UInt8>(255.f * Hue2RGB(v1, v2, h)),
static_cast<UInt8>(255.f * Hue2RGB(v1, v2, h - (1.f/3.f))));
return Color(Hue2RGB(v1, v2, h + (1.f/3.f)),
Hue2RGB(v1, v2, h),
Hue2RGB(v1, v2, h - (1.f/3.f)));
}
}
@@ -257,11 +236,10 @@ namespace Nz
* \param saturation Saturation component in [0, 1]
* \param value Value component in [0, 1]
*/
inline Color Color::FromHSV(float hue, float saturation, float value)
{
if (NumberEquals(saturation, 0.f))
return Color(static_cast<UInt8>(value * 255.f));
return Color(value);
else
{
float h = (hue / 360.f) * 6.f;
@@ -314,18 +292,43 @@ namespace Nz
break;
}
// RGB results from 0 to 255
return Color(static_cast<UInt8>(r * 255.f), static_cast<UInt8>(g * 255.f), static_cast<UInt8>(b * 255.f));
return Color(r, g, b);
}
}
/*!
* \brief Converts RGB8 representation to Color (RGBA32F)
* \return Color resulting
*
* \param r Red value
* \param g Green value
* \param b Blue value
*/
inline Color Color::FromRGB8(UInt8 r, UInt8 g, UInt8 b)
{
return Color(r / 255.f, g / 255.f, b / 255.f);
}
/*!
* \brief Converts RGBA8 representation to Color (RGBA32F)
* \return Color resulting
*
* \param r Red value
* \param g Green value
* \param b Blue value
* \param a Alpha value
*/
inline Color Color::FromRGBA8(UInt8 r, UInt8 g, UInt8 b, UInt8 a)
{
return Color(r / 255.f, g / 255.f, b / 255.f, a / 255.f);
}
/*!
* \brief Converts XYZ representation to RGB
* \return Color resulting
*
* \param vec Vector3 representing the space color
*/
inline Color Color::FromXYZ(const Vector3f& vec)
{
return FromXYZ(vec.x, vec.y, vec.z);
@@ -339,7 +342,6 @@ namespace Nz
* \param y Y component
* \param z Z component
*/
inline Color Color::FromXYZ(float x, float y, float z)
{
x /= 100.f; // X from 0 to 95.047
@@ -365,7 +367,7 @@ namespace Nz
else
b *= 12.92f;
return Color(static_cast<UInt8>(r * 255.f), static_cast<UInt8>(g * 255.f), static_cast<UInt8>(b * 255.f));
return Color(r, g, b);
}
/*!
@@ -376,12 +378,11 @@ namespace Nz
* \param magenta Magenta component
* \param yellow Yellow component
*/
inline void Color::ToCMY(const Color& color, float* cyan, float* magenta, float* yellow)
{
*cyan = 1.f - color.r/255.f;
*magenta = 1.f - color.g/255.f;
*yellow = 1.f - color.b/255.f;
*cyan = 1.f - color.r;
*magenta = 1.f - color.g;
*yellow = 1.f - color.b;
}
/*!
@@ -425,12 +426,11 @@ namespace Nz
* \param saturation Saturation component in [0, 1]
* \param lightness Lightness component in [0, 1]
*/
inline void Color::ToHSL(const Color& color, float* hue, float* saturation, float* lightness)
{
float r = color.r / 255.f;
float g = color.g / 255.f;
float b = color.b / 255.f;
float r = color.r;
float g = color.g;
float b = color.b;
float min = std::min({r, g, b}); // Min. value of RGB
float max = std::max({r, g, b}); // Max. value of RGB
@@ -483,12 +483,11 @@ namespace Nz
* \param saturation Saturation component
* \param value Value component
*/
inline void Color::ToHSV(const Color& color, float* hue, float* saturation, float* value)
{
float r = color.r / 255.f;
float g = color.g / 255.f;
float b = color.b / 255.f;
float r = color.r;
float g = color.g;
float b = color.b;
float min = std::min({r, g, b}); //Min. value of RGB
float max = std::max({r, g, b}); //Max. value of RGB
@@ -530,13 +529,48 @@ namespace Nz
}
}
/*!
* \brief Converts Color representation (RGBA32F) to RGB8
*
* \param color Color to transform
* \param r Red component
* \param g Green component
* \param b Blue component
*
* \remark Values are clamped to [0;255]
*/
static inline void ToRGB8(const Color& color, UInt8* r, UInt8* g, UInt8* b)
{
*r = static_cast<UInt8>(Clamp(color.r * 255.f, 0.f, 255.f));
*g = static_cast<UInt8>(Clamp(color.g * 255.f, 0.f, 255.f));
*b = static_cast<UInt8>(Clamp(color.b * 255.f, 0.f, 255.f));
}
/*!
* \brief Converts Color representation (RGBA32F) to RGBA8
*
* \param color Color to transform
* \param r Red component
* \param g Green component
* \param b Blue component
* \param a Alpha component
*
* \remark Values are clamped to [0;255]
*/
static inline void ToRGBA8(const Color& color, UInt8* r, UInt8* g, UInt8* b, UInt8* a)
{
*r = static_cast<UInt8>(Clamp(color.r * 255.f, 0.f, 255.f));
*g = static_cast<UInt8>(Clamp(color.g * 255.f, 0.f, 255.f));
*b = static_cast<UInt8>(Clamp(color.b * 255.f, 0.f, 255.f));
*a = static_cast<UInt8>(Clamp(color.a * 255.f, 0.f, 255.f));
}
/*!
* \brief Converts RGB representation to XYZ
*
* \param color Color to transform
* \param vec Vector3 representing the space color
*/
inline void Color::ToXYZ(const Color& color, Vector3f* vec)
{
return ToXYZ(color, &vec->x, &vec->y, &vec->z);
@@ -550,12 +584,11 @@ namespace Nz
* \param y Y component
* \param z Z component
*/
inline void Color::ToXYZ(const Color& color, float* x, float* y, float* z)
{
float r = color.r/255.f; //R from 0 to 255
float g = color.g/255.f; //G from 0 to 255
float b = color.b/255.f; //B from 0 to 255
float r = color.r; //< R from 0 to 255
float g = color.g; //< G from 0 to 255
float b = color.b; //< B from 0 to 255
if (r > 0.04045f)
r = std::pow((r + 0.055f)/1.055f, 2.4f);
@@ -590,7 +623,6 @@ namespace Nz
* \param v2 V2 component
* \param vH VH component
*/
inline float Color::Hue2RGB(float v1, float v2, float vH)
{
if (vH < 0.f)