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Introduction of classes ColorRGB and ColorRGBA to unify color data definition and manipulation

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(cherry picked from commit prusa3d/PrusaSlicer@d0bff2d996 )
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enricoturri1966 2023-10-20 15:41:26 +08:00 • committed by Noisyfox
parent 36ffb18059
commit 28d0147d09
60 changed files with 1290 additions and 1174 deletions
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src/libslic3r/Color.hpp Normal file
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#ifndef slic3r_Color_hpp_
#define slic3r_Color_hpp_
#include <array>
#include <algorithm>
namespace Slic3r {
class ColorRGB
{
std::array<float, 3> m_data{1.0f, 1.0f, 1.0f};
public:
ColorRGB() = default;
ColorRGB(float r, float g, float b);
ColorRGB(unsigned char r, unsigned char g, unsigned char b);
ColorRGB(const ColorRGB& other) = default;
ColorRGB& operator = (const ColorRGB& other) { m_data = other.m_data; return *this; }
bool operator == (const ColorRGB& other) const { return m_data == other.m_data; }
bool operator != (const ColorRGB& other) const { return !operator==(other); }
bool operator < (const ColorRGB& other) const;
bool operator > (const ColorRGB& other) const;
ColorRGB operator + (const ColorRGB& other) const;
ColorRGB operator * (float value) const;
const float* const data() const { return m_data.data(); }
float r() const { return m_data[0]; }
float g() const { return m_data[1]; }
float b() const { return m_data[2]; }
void r(float r) { m_data[0] = std::clamp(r, 0.0f, 1.0f); }
void g(float g) { m_data[1] = std::clamp(g, 0.0f, 1.0f); }
void b(float b) { m_data[2] = std::clamp(b, 0.0f, 1.0f); }
void set(unsigned int comp, float value) {
assert(0 <= comp && comp <= 2);
m_data[comp] = std::clamp(value, 0.0f, 1.0f);
}
unsigned char r_uchar() const { return static_cast<unsigned char>(m_data[0] * 255.0f); }
unsigned char g_uchar() const { return static_cast<unsigned char>(m_data[1] * 255.0f); }
unsigned char b_uchar() const { return static_cast<unsigned char>(m_data[2] * 255.0f); }
static const ColorRGB BLACK() { return { 0.0f, 0.0f, 0.0f }; }
static const ColorRGB BLUE() { return { 0.0f, 0.0f, 1.0f }; }
static const ColorRGB BLUEISH() { return { 0.5f, 0.5f, 1.0f }; }
static const ColorRGB DARK_GRAY() { return { 0.25f, 0.25f, 0.25f }; }
static const ColorRGB DARK_YELLOW() { return { 0.5f, 0.5f, 0.0f }; }
static const ColorRGB GRAY() { return { 0.5f, 0.5f, 0.5f }; }
static const ColorRGB GREEN() { return { 0.0f, 1.0f, 0.0f }; }
static const ColorRGB GREENISH() { return { 0.5f, 1.0f, 0.5f }; }
static const ColorRGB LIGHT_GRAY() { return { 0.75f, 0.75f, 0.75f }; }
static const ColorRGB ORANGE() { return { 0.92f, 0.50f, 0.26f }; }
static const ColorRGB RED() { return { 1.0f, 0.0f, 0.0f }; }
static const ColorRGB REDISH() { return { 1.0f, 0.5f, 0.5f }; }
static const ColorRGB YELLOW() { return { 1.0f, 1.0f, 0.0f }; }
static const ColorRGB WHITE() { return { 1.0f, 1.0f, 1.0f }; }
static const ColorRGB X() { return { 0.75f, 0.0f, 0.0f }; }
static const ColorRGB Y() { return { 0.0f, 0.75f, 0.0f }; }
static const ColorRGB Z() { return { 0.0f, 0.0f, 0.75f }; }
};
class ColorRGBA
{
std::array<float, 4> m_data{ 1.0f, 1.0f, 1.0f, 1.0f };
public:
ColorRGBA() = default;
ColorRGBA(float r, float g, float b, float a);
ColorRGBA(unsigned char r, unsigned char g, unsigned char b, unsigned char a);
ColorRGBA(const ColorRGBA& other) = default;
ColorRGBA& operator = (const ColorRGBA& other) { m_data = other.m_data; return *this; }
bool operator == (const ColorRGBA& other) const { return m_data == other.m_data; }
bool operator != (const ColorRGBA& other) const { return !operator==(other); }
bool operator < (const ColorRGBA& other) const;
bool operator > (const ColorRGBA& other) const;
ColorRGBA operator + (const ColorRGBA& other) const;
ColorRGBA operator * (float value) const;
const float* const data() const { return m_data.data(); }
float r() const { return m_data[0]; }
float g() const { return m_data[1]; }
float b() const { return m_data[2]; }
float a() const { return m_data[3]; }
void r(float r) { m_data[0] = std::clamp(r, 0.0f, 1.0f); }
void g(float g) { m_data[1] = std::clamp(g, 0.0f, 1.0f); }
void b(float b) { m_data[2] = std::clamp(b, 0.0f, 1.0f); }
void a(float a) { m_data[3] = std::clamp(a, 0.0f, 1.0f); }
void set(unsigned int comp, float value) {
assert(0 <= comp && comp <= 3);
m_data[comp] = std::clamp(value, 0.0f, 1.0f);
}
unsigned char r_uchar() const { return static_cast<unsigned char>(m_data[0] * 255.0f); }
unsigned char g_uchar() const { return static_cast<unsigned char>(m_data[1] * 255.0f); }
unsigned char b_uchar() const { return static_cast<unsigned char>(m_data[2] * 255.0f); }
unsigned char a_uchar() const { return static_cast<unsigned char>(m_data[3] * 255.0f); }
bool is_transparent() const { return m_data[3] < 1.0f; }
static const ColorRGBA BLACK() { return { 0.0f, 0.0f, 0.0f, 1.0f }; }
static const ColorRGBA BLUE() { return { 0.0f, 0.0f, 1.0f, 1.0f }; }
static const ColorRGBA BLUEISH() { return { 0.5f, 0.5f, 1.0f, 1.0f }; }
static const ColorRGBA DARK_GRAY() { return { 0.25f, 0.25f, 0.25f, 1.0f }; }
static const ColorRGBA DARK_YELLOW() { return { 0.5f, 0.5f, 0.0f, 1.0f }; }
static const ColorRGBA GRAY() { return { 0.5f, 0.5f, 0.5f, 1.0f }; }
static const ColorRGBA GREEN() { return { 0.0f, 1.0f, 0.0f, 1.0f }; }
static const ColorRGBA GREENISH() { return { 0.5f, 1.0f, 0.5f, 1.0f }; }
static const ColorRGBA LIGHT_GRAY() { return { 0.75f, 0.75f, 0.75f, 1.0f }; }
static const ColorRGBA ORANGE() { return { 0.923f, 0.504f, 0.264f, 1.0f }; }
static const ColorRGBA RED() { return { 1.0f, 0.0f, 0.0f, 1.0f }; }
static const ColorRGBA REDISH() { return { 1.0f, 0.5f, 0.5f, 1.0f }; }
static const ColorRGBA YELLOW() { return { 1.0f, 1.0f, 0.0f, 1.0f }; }
static const ColorRGBA WHITE() { return { 1.0f, 1.0f, 1.0f, 1.0f }; }
static const ColorRGBA X() { return { 0.75f, 0.0f, 0.0f, 1.0f }; }
static const ColorRGBA Y() { return { 0.0f, 0.75f, 0.0f, 1.0f }; }
static const ColorRGBA Z() { return { 0.0f, 0.0f, 0.75f, 1.0f }; }
};
extern ColorRGB operator * (float value, const ColorRGB& other);
extern ColorRGBA operator * (float value, const ColorRGBA& other);
extern ColorRGB lerp(const ColorRGB& a, const ColorRGB& b, float t);
extern ColorRGBA lerp(const ColorRGBA& a, const ColorRGBA& b, float t);
extern ColorRGB complementary(const ColorRGB& color);
extern ColorRGBA complementary(const ColorRGBA& color);
extern ColorRGB saturate(const ColorRGB& color, float factor);
extern ColorRGBA saturate(const ColorRGBA& color, float factor);
extern ColorRGB opposite(const ColorRGB& color);
extern ColorRGB opposite(const ColorRGB& a, const ColorRGB& b);
extern bool can_decode_color(const std::string& color);
extern bool decode_color(const std::string& color_in, ColorRGB& color_out);
extern bool decode_color(const std::string& color_in, ColorRGBA& color_out);
extern bool decode_colors(const std::vector<std::string>& colors_in, std::vector<ColorRGB>& colors_out);
extern bool decode_colors(const std::vector<std::string>& colors_in, std::vector<ColorRGBA>& colors_out);
extern std::string encode_color(const ColorRGB& color);
extern std::string encode_color(const ColorRGBA& color);
extern ColorRGB to_rgb(const ColorRGBA& other_rgba);
extern ColorRGBA to_rgba(const ColorRGB& other_rgb);
extern ColorRGBA to_rgba(const ColorRGB& other_rgb, float alpha);
extern ColorRGBA picking_decode(unsigned int id);
extern unsigned int picking_encode(unsigned char r, unsigned char g, unsigned char b);
// Produce an alpha channel checksum for the red green blue components. The alpha channel may then be used to verify, whether the rgb components
// were not interpolated by alpha blending or multi sampling.
extern unsigned char picking_checksum_alpha_channel(unsigned char red, unsigned char green, unsigned char blue);
} // namespace Slic3r
#endif /* slic3r_Color_hpp_ */