@@ -104,24 +104,37 @@ public:
* @return the new colour for the screen.
*/
static inline Colour MakeTransparent(Colour colour, uint nom, uint denom = 256)
{
uint r = colour.r;
uint g = colour.g;
uint b = colour.b;
return Colour(r * nom / denom, g * nom / denom, b * nom / denom);
}
/**
* Make a colour dark grey, for specialized 32bpp remapping.
* @param r red component
* @param g green component
* @param b blue component
* @return the brightness value of the new colour, now dark grey.
static inline uint8 MakeDark(uint8 r, uint8 g, uint8 b)
/* Magic-numbers are ~66% of those used in MakeGrey() */
return ((r * 13063) + (g * 25647) + (b * 4981)) / 65536;
* Make a colour grey - based.
* @param colour the colour to make grey.
* @return the new colour, now grey.
static inline Colour MakeGrey(Colour colour)
/* To avoid doubles and stuff, multiple it with a total of 65536 (16bits), then
* divide by it to normalize the value to a byte again. See heightmap.cpp for