Remove SK_SUPPORT_LEGACY_GRADIENT_PRECISION

src/effects/gradients/SkClampRange.cpp

 
 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 
 #include "SkClampRange.h"
@@ skipping 11 matching lines @@
     }
     if (x1 <= edge) {
         return count;
     }
     int64_t n = (edge - x0 + dx - 1) / dx;
     SkASSERT(n >= 0);
     SkASSERT(n <= count);
     return (int)n;
 }
 
-#ifdef SK_SUPPORT_LEGACY_GRADIENT_PRECISION
-static bool overflows_gradfixed(int64_t x) {
-    return x < -SK_FixedMax || x > SK_FixedMax;
-}
-#endif
-
 void SkClampRange::initFor1(SkGradFixed fx) {
     fCount0 = fCount1 = fCount2 = 0;
     if (fx <= 0) {
         fCount0 = 1;
     } else if (fx < kFracMax_SkGradFixed) {
         fCount1 = 1;
         fFx1 = fx;
     } else {
         fCount2 = 1;
     }
@@ skipping 33 matching lines @@
         fCount0 = fCount1 = 0;
         fCount2 = count;
         return;
     }
 
     int extraCount = 0;
 
     // now make ex be 1 past the last computed value
     ex += dx;
 
-#ifdef SK_SUPPORT_LEGACY_GRADIENT_PRECISION
-    // now check for over/under flow
-    if (overflows_gradfixed(ex)) {
-        int originalCount = count;
-        int64_t ccount;
-        bool swap = dx < 0;
-        if (swap) {
-            dx = -dx;
-            fx = -fx;
-        }
-
-        int shift = 0;
-        if (sizeof(SkGradFixed) == 8) {
-            shift = 16;
-        }
-
-        ccount = ((SK_FixedMax << shift) - fx + dx - 1) / dx;
-        if (swap) {
-            dx = -dx;
-            fx = -fx;
-        }
-        SkASSERT(ccount > 0 && ccount <= SK_FixedMax);
-
-        count = (int)ccount;
-        if (0 == count) {
-            this->initFor1(fx0);
-            if (dx > 0) {
-                fCount2 += originalCount - 1;
-            } else {
-                fCount0 += originalCount - 1;
-            }
-            return;
-        }
-        extraCount = originalCount - count;
-        ex = fx + dx * count;
-    }
-#endif
-
     bool doSwap = dx < 0;
 
     if (doSwap) {
         ex -= dx;
         fx -= dx;
         SkTSwap(fx, ex);
         dx = -dx;
     }
 
 
@@ skipping 26 matching lines @@
     if (fCount1 > 0) {
         fFx1 = fx0 + fCount0 * dx;
     }
 
     if (dx > 0) {
         fCount2 += extraCount;
     } else {
         fCount0 += extraCount;
     }
 }