fix large dashed paths

src/core/SkPathMeasure.cpp

 
 /*
  * Copyright 2008 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.
  */
 
 
 #include "SkPathMeasure.h"
 #include "SkGeometry.h"
 #include "SkPath.h"
 #include "SkTSearch.h"
 
 // these must be 0,1,2,3 since they are in our 2-bit field
 enum {
     kLine_SegType,
     kQuad_SegType,
     kCubic_SegType,
     kConic_SegType,
 };
 
+#ifdef SK_SUPPORT_LEGACY_PATH_MEASURE_TVALUE
 #define kMaxTValue  32767
+#else
+#define kMaxTValue  0x3FFFFFFF
+#endif
 
 static inline SkScalar tValue2Scalar(int t) {
     SkASSERT((unsigned)t <= kMaxTValue);
+#ifdef SK_SUPPORT_LEGACY_PATH_MEASURE_TVALUE
     return t * 3.05185e-5f; // t / 32767
+#else
+    const SkScalar kMaxTReciprocal = 1.0f / kMaxTValue;
+    return t * kMaxTReciprocal;
+#endif
 }
 
 SkScalar SkPathMeasure::Segment::getScalarT() const {
     return tValue2Scalar(fTValue);
 }
 
 const SkPathMeasure::Segment* SkPathMeasure::NextSegment(const Segment* seg) {
     unsigned ptIndex = seg->fPtIndex;
 
     do {
@@ skipping 586 matching lines @@
 
     for (int i = 0; i < fSegments.count(); i++) {
         const Segment* seg = &fSegments[i];
         SkDebugf("pathmeas: seg[%d] distance=%g, point=%d, t=%g, type=%d\n",
                 i, seg->fDistance, seg->fPtIndex, seg->getScalarT(),
                  seg->fType);
     }
 }
 
 #endif