LINEAR_RGB_TO_SRGB_TABLE

resvg::filter

Constant LINEAR_RGB_TO_SRGB_TABLE 

Source 
const LINEAR_RGB_TO_SRGB_TABLE: &[u8; 256];
Expand description

Precomputed LinearRGB to sRGB table.

Since we are storing the result in u8, there is no need to compute those values each time. Mainly because it’s very expensive.

if (C_lin <= 0.0031308)
    C_srgb = C_lin * 12.92;
else
    C_srgb = 1.055 * pow(C_lin, 1.0 / 2.4) - 0.055;

Thanks to librsvg for the idea.