Restore original saturation and brightness

native/color_boost.h

@@ -1,16 +1,7 @@
 #ifndef COLOR_BOOST_H
 #define COLOR_BOOST_H
-/* HSV saturation x2 and value x1.33, preserving hue and clamping value. */
+/* Preserve the original saturation and brightness. */
 static inline void boost_color(const unsigned char in[3],unsigned char out[3]){
- unsigned lo=in[0],hi=in[0];
- for(unsigned c=1;c<3;c++){if(in[c]<lo)lo=in[c];if(in[c]>hi)hi=in[c];}
- unsigned chroma=hi-lo;
- unsigned peak=(hi*133+50)/100;if(peak>255)peak=255;
- if(!chroma){for(unsigned c=0;c<3;c++)out[c]=(unsigned char)peak;return;}
- unsigned expanded=chroma*2;if(expanded>hi)expanded=hi;
- for(unsigned c=0;c<3;c++){
-  unsigned value=hi-expanded+((in[c]-lo)*expanded+chroma/2)/chroma;
-  out[c]=(unsigned char)((value*peak+hi/2)/hi);
- }
+ for(unsigned c=0;c<3;c++)out[c]=in[c];
 }
 #endif