Colors.c File Reference

#include <assert.h>
#include <math.h>
#include <string.h>
#include <SDL_endian.h>
#include "Colors.h"

Go to the source code of this file.

Variables
const struct Colors	Colors

Function Documentation

MVC_ColorForName()

SDL_Color MVC_ColorForName ( const char *  name )

related

Definition at line 180 of file Colors.c.

                                             {
 
    if (name) {
        if (strcasecmp(name, "AliceBlue") == 0) {
            return Colors.AliceBlue;
        }
        if (strcasecmp(name, "AntiqueWhite") == 0) {
            return Colors.AntiqueWhite;
        }
        if (strcasecmp(name, "Aqua") == 0) {
            return Colors.Aqua;
        }
        if (strcasecmp(name, "Aquamarine") == 0) {
            return Colors.Aquamarine;
        }
        if (strcasecmp(name, "Azure") == 0) {
            return Colors.Azure;
        }
        if (strcasecmp(name, "Beige") == 0) {
            return Colors.Beige;
        }
        if (strcasecmp(name, "Bisque") == 0) {
            return Colors.Bisque;
        }
        if (strcasecmp(name, "Black") == 0) {
            return Colors.Black;
        }
        if (strcasecmp(name, "BlanchedAlmond") == 0) {
            return Colors.BlanchedAlmond;
        }
        if (strcasecmp(name, "Blue") == 0) {
            return Colors.Blue;
        }
        if (strcasecmp(name, "BlueViolet") == 0) {
            return Colors.BlueViolet;
        }
        if (strcasecmp(name, "Brown") == 0) {
            return Colors.Brown;
        }
        if (strcasecmp(name, "BurlyWood") == 0) {
            return Colors.BurlyWood;
        }
        if (strcasecmp(name, "CadetBlue") == 0) {
            return Colors.CadetBlue;
        }
        if (strcasecmp(name, "Charcoal") == 0) {
            return Colors.Charcoal;
        }
        if (strcasecmp(name, "Chartreuse") == 0) {
            return Colors.Chartreuse;
        }
        if (strcasecmp(name, "Chocolate") == 0) {
            return Colors.Chocolate;
        }
        if (strcasecmp(name, "Coral") == 0) {
            return Colors.Coral;
        }
        if (strcasecmp(name, "CornflowerBlue") == 0) {
            return Colors.CornflowerBlue;
        }
        if (strcasecmp(name, "Cornsilk") == 0) {
            return Colors.Cornsilk;
        }
        if (strcasecmp(name, "Crimson") == 0) {
            return Colors.Crimson;
        }
        if (strcasecmp(name, "Cyan") == 0) {
            return Colors.Cyan;
        }
        if (strcasecmp(name, "DarkBlue") == 0) {
            return Colors.DarkBlue;
        }
        if (strcasecmp(name, "DarkCyan") == 0) {
            return Colors.DarkCyan;
        }
        if (strcasecmp(name, "DarkGoldenRod") == 0) {
            return Colors.DarkGoldenRod;
        }
        if (strcasecmp(name, "DarkGray") == 0) {
            return Colors.DarkGray;
        }
        if (strcasecmp(name, "DarkGrey") == 0) {
            return Colors.DarkGrey;
        }
        if (strcasecmp(name, "DarkGreen") == 0) {
            return Colors.DarkGreen;
        }
        if (strcasecmp(name, "DarkKhaki") == 0) {
            return Colors.DarkKhaki;
        }
        if (strcasecmp(name, "DarkMagenta") == 0) {
            return Colors.DarkMagenta;
        }
        if (strcasecmp(name, "DarkOliveGreen") == 0) {
            return Colors.DarkOliveGreen;
        }
        if (strcasecmp(name, "DarkOrange") == 0) {
            return Colors.DarkOrange;
        }
        if (strcasecmp(name, "DarkOrchid") == 0) {
            return Colors.DarkOrchid;
        }
        if (strcasecmp(name, "DarkRed") == 0) {
            return Colors.DarkRed;
        }
        if (strcasecmp(name, "DarkSalmon") == 0) {
            return Colors.DarkSalmon;
        }
        if (strcasecmp(name, "DarkSeaGreen") == 0) {
            return Colors.DarkSeaGreen;
        }
        if (strcasecmp(name, "DarkSlateBlue") == 0) {
            return Colors.DarkSlateBlue;
        }
        if (strcasecmp(name, "DarkSlateGray") == 0) {
            return Colors.DarkSlateGray;
        }
        if (strcasecmp(name, "DarkSlateGrey") == 0) {
            return Colors.DarkSlateGrey;
        }
        if (strcasecmp(name, "DarkTurquoise") == 0) {
            return Colors.DarkTurquoise;
        }
        if (strcasecmp(name, "DarkViolet") == 0) {
            return Colors.DarkViolet;
        }
        if (strcasecmp(name, "DeepPink") == 0) {
            return Colors.DeepPink;
        }
        if (strcasecmp(name, "DeepSkyBlue") == 0) {
            return Colors.DeepSkyBlue;
        }
        if (strcasecmp(name, "DimGray") == 0) {
            return Colors.DimGray;
        }
        if (strcasecmp(name, "DimGrey") == 0) {
            return Colors.DimGrey;
        }
        if (strcasecmp(name, "DodgerBlue") == 0) {
            return Colors.DodgerBlue;
        }
        if (strcasecmp(name, "FireBrick") == 0) {
            return Colors.FireBrick;
        }
        if (strcasecmp(name, "FloralWhite") == 0) {
            return Colors.FloralWhite;
        }
        if (strcasecmp(name, "ForestGreen") == 0) {
            return Colors.ForestGreen;
        }
        if (strcasecmp(name, "Fuchsia") == 0) {
            return Colors.Fuchsia;
        }
        if (strcasecmp(name, "Gainsboro") == 0) {
            return Colors.Gainsboro;
        }
        if (strcasecmp(name, "GhostWhite") == 0) {
            return Colors.GhostWhite;
        }
        if (strcasecmp(name, "Gold") == 0) {
            return Colors.Gold;
        }
        if (strcasecmp(name, "GoldenRod") == 0) {
            return Colors.GoldenRod;
        }
        if (strcasecmp(name, "Gray") == 0) {
            return Colors.Gray;
        }
        if (strcasecmp(name, "Grey") == 0) {
            return Colors.Grey;
        }
        if (strcasecmp(name, "Green") == 0) {
            return Colors.Green;
        }
        if (strcasecmp(name, "GreenYellow") == 0) {
            return Colors.GreenYellow;
        }
        if (strcasecmp(name, "HoneyDew") == 0) {
            return Colors.HoneyDew;
        }
        if (strcasecmp(name, "HotPink") == 0) {
            return Colors.HotPink;
        }
        if (strcasecmp(name, "IndianRed") == 0) {
            return Colors.IndianRed;
        }
        if (strcasecmp(name, "Indigo") == 0) {
            return Colors.Indigo;
        }
        if (strcasecmp(name, "Ivory") == 0) {
            return Colors.Ivory;
        }
        if (strcasecmp(name, "Khaki") == 0) {
            return Colors.Khaki;
        }
        if (strcasecmp(name, "Lavender") == 0) {
            return Colors.Lavender;
        }
        if (strcasecmp(name, "LavenderBlush") == 0) {
            return Colors.LavenderBlush;
        }
        if (strcasecmp(name, "LawnGreen") == 0) {
            return Colors.LawnGreen;
        }
        if (strcasecmp(name, "LemonChiffon") == 0) {
            return Colors.LemonChiffon;
        }
        if (strcasecmp(name, "LightBlue") == 0) {
            return Colors.LightBlue;
        }
        if (strcasecmp(name, "LightCoral") == 0) {
            return Colors.LightCoral;
        }
        if (strcasecmp(name, "LightCyan") == 0) {
            return Colors.LightCyan;
        }
        if (strcasecmp(name, "LightGoldenRodYellow") == 0) {
            return Colors.LightGoldenRodYellow;
        }
        if (strcasecmp(name, "LightGray") == 0) {
            return Colors.LightGray;
        }
        if (strcasecmp(name, "LightGrey") == 0) {
            return Colors.LightGrey;
        }
        if (strcasecmp(name, "LightGreen") == 0) {
            return Colors.LightGreen;
        }
        if (strcasecmp(name, "LightPink") == 0) {
            return Colors.LightPink;
        }
        if (strcasecmp(name, "LightSalmon") == 0) {
            return Colors.LightSalmon;
        }
        if (strcasecmp(name, "LightSeaGreen") == 0) {
            return Colors.LightSeaGreen;
        }
        if (strcasecmp(name, "LightSkyBlue") == 0) {
            return Colors.LightSkyBlue;
        }
        if (strcasecmp(name, "LightSlateGray") == 0) {
            return Colors.LightSlateGray;
        }
        if (strcasecmp(name, "LightSlateGrey") == 0) {
            return Colors.LightSlateGrey;
        }
        if (strcasecmp(name, "LightSteelBlue") == 0) {
            return Colors.LightSteelBlue;
        }
        if (strcasecmp(name, "LightYellow") == 0) {
            return Colors.LightYellow;
        }
        if (strcasecmp(name, "Lime") == 0) {
            return Colors.Lime;
        }
        if (strcasecmp(name, "LimeGreen") == 0) {
            return Colors.LimeGreen;
        }
        if (strcasecmp(name, "Linen") == 0) {
            return Colors.Linen;
        }
        if (strcasecmp(name, "Magenta") == 0) {
            return Colors.Magenta;
        }
        if (strcasecmp(name, "Maroon") == 0) {
            return Colors.Maroon;
        }
        if (strcasecmp(name, "MediumAquaMarine") == 0) {
            return Colors.MediumAquaMarine;
        }
        if (strcasecmp(name, "MediumBlue") == 0) {
            return Colors.MediumBlue;
        }
        if (strcasecmp(name, "MediumOrchid") == 0) {
            return Colors.MediumOrchid;
        }
        if (strcasecmp(name, "MediumPurple") == 0) {
            return Colors.MediumPurple;
        }
        if (strcasecmp(name, "MediumSeaGreen") == 0) {
            return Colors.MediumSeaGreen;
        }
        if (strcasecmp(name, "MediumSlateBlue") == 0) {
            return Colors.MediumSlateBlue;
        }
        if (strcasecmp(name, "MediumSpringGreen") == 0) {
            return Colors.MediumSpringGreen;
        }
        if (strcasecmp(name, "MediumTurquoise") == 0) {
            return Colors.MediumTurquoise;
        }
        if (strcasecmp(name, "MediumVioletRed") == 0) {
            return Colors.MediumVioletRed;
        }
        if (strcasecmp(name, "MidnightBlue") == 0) {
            return Colors.MidnightBlue;
        }
        if (strcasecmp(name, "MintCream") == 0) {
            return Colors.MintCream;
        }
        if (strcasecmp(name, "MistyRose") == 0) {
            return Colors.MistyRose;
        }
        if (strcasecmp(name, "Moccasin") == 0) {
            return Colors.Moccasin;
        }
        if (strcasecmp(name, "NavajoWhite") == 0) {
            return Colors.NavajoWhite;
        }
        if (strcasecmp(name, "Navy") == 0) {
            return Colors.Navy;
        }
        if (strcasecmp(name, "OldLace") == 0) {
            return Colors.OldLace;
        }
        if (strcasecmp(name, "Olive") == 0) {
            return Colors.Olive;
        }
        if (strcasecmp(name, "OliveDrab") == 0) {
            return Colors.OliveDrab;
        }
        if (strcasecmp(name, "Orange") == 0) {
            return Colors.Orange;
        }
        if (strcasecmp(name, "OrangeRed") == 0) {
            return Colors.OrangeRed;
        }
        if (strcasecmp(name, "Orchid") == 0) {
            return Colors.Orchid;
        }
        if (strcasecmp(name, "PaleGoldenRod") == 0) {
            return Colors.PaleGoldenRod;
        }
        if (strcasecmp(name, "PaleGreen") == 0) {
            return Colors.PaleGreen;
        }
        if (strcasecmp(name, "PaleTurquoise") == 0) {
            return Colors.PaleTurquoise;
        }
        if (strcasecmp(name, "PaleVioletRed") == 0) {
            return Colors.PaleVioletRed;
        }
        if (strcasecmp(name, "PapayaWhip") == 0) {
            return Colors.PapayaWhip;
        }
        if (strcasecmp(name, "PeachPuff") == 0) {
            return Colors.PeachPuff;
        }
        if (strcasecmp(name, "Peru") == 0) {
            return Colors.Peru;
        }
        if (strcasecmp(name, "Pink") == 0) {
            return Colors.Pink;
        }
        if (strcasecmp(name, "Plum") == 0) {
            return Colors.Plum;
        }
        if (strcasecmp(name, "PowderBlue") == 0) {
            return Colors.PowderBlue;
        }
        if (strcasecmp(name, "Purple") == 0) {
            return Colors.Purple;
        }
        if (strcasecmp(name, "RebeccaPurple") == 0) {
            return Colors.RebeccaPurple;
        }
        if (strcasecmp(name, "Red") == 0) {
            return Colors.Red;
        }
        if (strcasecmp(name, "RosyBrown") == 0) {
            return Colors.RosyBrown;
        }
        if (strcasecmp(name, "RoyalBlue") == 0) {
            return Colors.RoyalBlue;
        }
        if (strcasecmp(name, "SaddleBrown") == 0) {
            return Colors.SaddleBrown;
        }
        if (strcasecmp(name, "Salmon") == 0) {
            return Colors.Salmon;
        }
        if (strcasecmp(name, "SandyBrown") == 0) {
            return Colors.SandyBrown;
        }
        if (strcasecmp(name, "SeaGreen") == 0) {
            return Colors.SeaGreen;
        }
        if (strcasecmp(name, "SeaShell") == 0) {
            return Colors.SeaShell;
        }
        if (strcasecmp(name, "Sienna") == 0) {
            return Colors.Sienna;
        }
        if (strcasecmp(name, "Silver") == 0) {
            return Colors.Silver;
        }
        if (strcasecmp(name, "SkyBlue") == 0) {
            return Colors.SkyBlue;
        }
        if (strcasecmp(name, "SlateBlue") == 0) {
            return Colors.SlateBlue;
        }
        if (strcasecmp(name, "SlateGray") == 0) {
            return Colors.SlateGray;
        }
        if (strcasecmp(name, "SlateGrey") == 0) {
            return Colors.SlateGrey;
        }
        if (strcasecmp(name, "Snow") == 0) {
            return Colors.Snow;
        }
        if (strcasecmp(name, "SpringGreen") == 0) {
            return Colors.SpringGreen;
        }
        if (strcasecmp(name, "SteelBlue") == 0) {
            return Colors.SteelBlue;
        }
        if (strcasecmp(name, "Tan") == 0) {
            return Colors.Tan;
        }
        if (strcasecmp(name, "Teal") == 0) {
            return Colors.Teal;
        }
        if (strcasecmp(name, "Thistle") == 0) {
            return Colors.Thistle;
        }
        if (strcasecmp(name, "Tomato") == 0) {
            return Colors.Tomato;
        }
        if (strcasecmp(name, "Transparent") == 0) {
            return Colors.Transparent;
        }
        if (strcasecmp(name, "Turquoise") == 0) {
            return Colors.Turquoise;
        }
        if (strcasecmp(name, "Violet") == 0) {
            return Colors.Violet;
        }
        if (strcasecmp(name, "Wheat") == 0) {
            return Colors.Wheat;
        }
        if (strcasecmp(name, "White") == 0) {
            return Colors.White;
        }
        if (strcasecmp(name, "WhiteSmoke") == 0) {
            return Colors.WhiteSmoke;
        }
        if (strcasecmp(name, "Yellow") == 0) {
            return Colors.Yellow;
        }
        if (strcasecmp(name, "YellowGreen") == 0) {
            return Colors.YellowGreen;
        }
    }
 
    return Colors.Black;
}

MVC_HexToRGBA()

SDL_Color MVC_HexToRGBA ( const char *  hex )

related

Definition at line 638 of file Colors.c.

                                         {
    static char buffer[9];
 
    union {
        SDL_Color c;
        unsigned int u;
    } color;
 
    color.u = 0;
 
    const size_t length = strlen(hex);
    if (length != 6 && length != 8) {
        return color.c;
    }
 
    strcpy(buffer, hex);
 
    if (length == 6) {
        strcat(buffer, "ff");
    }
 
    if (sscanf(buffer, "%x", &color.u) != 1) {
        return color.c;
    }
 
#if SDL_BYTEORDER == SDL_LIL_ENDIAN
    color.u = (((color.u & 0xff000000) >> 24) | ((color.u & 0x00ff0000) >> 8) | ((color.u & 0x0000ff00) << 8) | ((color.u & 0x000000ff) << 24));
#endif
 
    return color.c;
}

MVC_HSVToRGB()

SDL_Color MVC_HSVToRGB ( double  hue, double  saturation, double  value  )

related

Definition at line 684 of file Colors.c.

                                                                    {
 
    SDL_Color color = { .a = 255 };
 
    const double h = fabs(fmod(hue, 360.0)) / 60.0;
    const int i = (int) h;
    const double f = h - i;
    const double v = value * 255;
    const double p = v * (1.0 - saturation);
    const double q = v * (1.0 - (saturation * f));
    const double t = v * (1.0 - (saturation * (1.0 - f)));
 
    switch (i) {
        case 0:
            color.r = v;
            color.g = t;
            color.b = p;
            break;
        case 1:
            color.r = q;
            color.g = v;
            color.b = p;
            break;
        case 2:
            color.r = p;
            color.g = v;
            color.b = t;
            break;
        case 3:
            color.r = p;
            color.g = q;
            color.b = v;
            break;
        case 4:
            color.r = t;
            color.g = p;
            color.b = v;
            break;
        default:
            color.r = v;
            color.g = p;
            color.b = q;
            break;
    }
 
    return color;
}

MVC_RGBAToHex()

char * MVC_RGBAToHex ( const SDL_Color *  color )

related

Definition at line 674 of file Colors.c.

                                            {
    static char hex[9];
 
    assert(color);
 
    snprintf(hex, sizeof(hex), "%02x%02x%02x%02x", color->r, color->g, color->b, color->a);
 
    return hex;
}

MVC_RGBToHex()

char * MVC_RGBToHex ( const SDL_Color *  color )

related

Definition at line 670 of file Colors.c.

                                           {
    return MVC_RGBAToHex(&(const SDL_Color) { .r = color->r, .g = color->g, .b = color->b, .a = 255 });
}

MVC_RGBToHSV()

void MVC_RGBToHSV ( const SDL_Color *  color, double *  hue, double *  saturation, double *  value  )

related

Definition at line 732 of file Colors.c.

                                                                                          {
 
    assert(color);
 
    const double r = color->r / 255.0;
    const double g = color->g / 255.0;
    const double b = color->b / 255.0;
 
    const double rgbMax = max(max(r, g), b);
    const double rgbMin = min(min(r, g), b);
    const double rgbDelta = rgbMax - rgbMin;
 
    if (rgbDelta > 0.0) {
 
        if (hue) {
            if (rgbMax == r) {
                *hue = 60.0 * fmod(((g - b) / rgbDelta), 6.0);
            } else if (rgbMax == g) {
                *hue = 60.0 * (((b - r) / rgbDelta) + 2.0);
            } else if (rgbMax == b) {
                *hue = 60.0 * (((r - g) / rgbDelta) + 4.0);
            }
 
            while (*hue < 0.0) {
                *hue += 360.0;
            }
        }
 
        if (saturation) {
            if (rgbMax > 0.0) {
                *saturation = rgbDelta / rgbMax;
            } else {
                *saturation = 0.0;
            }
        }
 
        if (value) {
            *value = rgbMax;
        }
 
    } else {
        if (hue) {
            *hue = 0.0;
        }
 
        if (saturation) {
            *saturation = 0.0;
        }
 
        if (value) {
            *value = rgbMax;
        }
    }
}

Variable Documentation

Colors

const struct Colors Colors

Definition at line 27 of file Colors.c.