add missing +128 from formula on Wikipedia

* add possiblitity to have a better color profile in exchange for some additional computing (currently not enabled from CMake)
* rewrite RGB2YUV in SSSE3 to use 3 base functions for Y U and V
* fix log message for similarRGB
* set fixed values for TestPrimitiveRgbToLumaChroma
* testing issues still persist in some cases

libfreerdp/primitives/prim_YUV.c

@@ -588,24 +588,37 @@ static pstatus_t general_YUV420ToRGB_8u_P3AC4R(const BYTE* const pSrc[3], const
 	return PRIMITIVES_SUCCESS;
 }
 
+#ifdef WITH_H264_COLOR_CORRECTION
 /**
- * | Y |    ( |  66   129     25 | | R | )        |  16 |
- * | U | =  ( | -38   -74    112 | | G | ) >> 8 + | 128 |
- * | V |    ( | 112   -94    -18 | | B | )        | 128 |
+ * | Y |    ( ( |  66   129     25 | | R | )   | 128 | )        |  16 |
+ * | U | =  ( ( | -38   -74    112 | | G | ) + | 128 | ) >> 8 + | 128 |
+ * | V |    ( ( | 112   -94    -18 | | B | )   | 128 | )        | 128 |
  */
+#else
+/**
+ * | Y |    ( ( |  66   127     25 | | R | )   | 128 | )        |  16 |
+ * | U | =  ( ( | -38   -74    112 | | G | ) + | 128 | ) >> 8 + | 128 |
+ * | V |    ( ( | 112   -94    -18 | | B | )   | 128 | )        | 128 |
+ */
+#endif
+
 static INLINE BYTE RGB2Y(BYTE R, BYTE G, BYTE B)
 {
-	return ((66 * R + 129 * G + 25 * B) >> 8) + 16u;
+#ifdef WITH_H264_COLOR_CORRECTION
+	return ((66lu * R + 129lu * G + 25lu * B + 128lu) >> 8lu) + 16lu;
+#else
+	return ((66lu * R + 127lu * G + 25lu * B + 128lu) >> 8lu) + 16lu;
+#endif
 }
 
 static INLINE BYTE RGB2U(BYTE R, BYTE G, BYTE B)
 {
-	return ((-38u * R - 74u * G + 112u * B) >> 8u) + 128u;
+	return ((-38lu * R - 74lu * G + 112lu * B + 128lu) >> 8lu) + 128lu;
 }
 
 static INLINE BYTE RGB2V(INT32 R, INT32 G, INT32 B)
 {
-	return ((112lu * R - 94lu * G - 18lu * B) >> 8lu) + 128lu;
+	return ((112lu * R - 94lu * G - 18lu * B + 128lu) >> 8lu) + 128lu;
 }
 
 static pstatus_t general_RGBToYUV444_8u_P3AC4R(const BYTE* pSrc, UINT32 SrcFormat,