add round/ceil/etc. for SkMScalar

include/core/SkFloatingPoint.h

 
 /*
  * Copyright 2006 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 
 #ifndef SkFloatingPoint_DEFINED
@@ skipping 98 matching lines @@
 #ifdef SK_USE_FLOATBITS
     #define sk_float_floor2int(x)   SkFloatToIntFloor(x)
     #define sk_float_round2int(x)   SkFloatToIntRound(x)
     #define sk_float_ceil2int(x)    SkFloatToIntCeil(x)
 #else
     #define sk_float_floor2int(x)   (int)sk_float_floor(x)
     #define sk_float_round2int(x)   (int)sk_float_floor((x) + 0.5f)
     #define sk_float_ceil2int(x)    (int)sk_float_ceil(x)
 #endif
 
+#define sk_double_floor(x)          floor(x)
+#define sk_double_round(x)          floor((x) + 0.5)
+#define sk_double_ceil(x)           ceil(x)
+#define sk_double_floor2int(x)      (int)floor(x)
+#define sk_double_round2int(x)      (int)floor((x) + 0.5f)
+#define sk_double_ceil2int(x)       (int)ceil(x)
+
 extern const uint32_t gIEEENotANumber;
 extern const uint32_t gIEEEInfinity;
 extern const uint32_t gIEEENegativeInfinity;
 
 #define SK_FloatNaN                 (*SkTCast<const float*>(&gIEEENotANumber))
 #define SK_FloatInfinity            (*SkTCast<const float*>(&gIEEEInfinity))
 #define SK_FloatNegativeInfinity    (*SkTCast<const float*>(&gIEEENegativeInfinity))
 
 #if defined(__SSE__)
 #include <xmmintrin.h>
@@ skipping 29 matching lines @@
     float estimate = *SkTCast<float*>(&i);
 
     // One step of Newton's method to refine.
     const float estimate_sq = estimate*estimate;
     estimate *= (1.5f-0.5f*x*estimate_sq);
     return estimate;
 #endif
 }
 
 #endif