Bump up point where we switch to distance fields for large glyphs

src/gpu/GrAtlasTextContext.cpp

 /*
  * Copyright 2015 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 #include "GrAtlasTextContext.h"
 
 #include "GrBatch.h"
 #include "GrBatchFontCache.h"
@@ skipping 38 matching lines @@
 static const size_t kGrayTextVASize = sizeof(SkPoint) + sizeof(GrColor) + sizeof(SkIPoint16);
 
 static const int kMinDFFontSize = 18;
 static const int kSmallDFFontSize = 32;
 static const int kSmallDFFontLimit = 32;
 static const int kMediumDFFontSize = 72;
 static const int kMediumDFFontLimit = 72;
 static const int kLargeDFFontSize = 162;
 static const int kLargeDFFontLimit = 2 * kLargeDFFontSize;
 
+static const int kLargeGlyphLimit = 192;
+
 SkDEBUGCODE(static const int kExpectedDistanceAdjustTableSize = 8;)
 static const int kDistanceAdjustLumShift = 5;
 
 static const int kVerticesPerGlyph = 4;
 static const int kIndicesPerGlyph = 6;
 
 static size_t get_vertex_stride(GrMaskFormat maskFormat) {
     switch (maskFormat) {
         case kA8_GrMaskFormat:
             return kGrayTextVASize;
@@ skipping 377 matching lines @@
 
     SkScalar maxScale = viewMatrix.getMaxScale();
     SkScalar scaledTextSize = maxScale*skPaint.getTextSize();
     // Hinted text looks far better at small resolutions
     // Scaling up beyond 2x yields undesireable artifacts
     if (scaledTextSize < kMinDFFontSize || scaledTextSize > kLargeDFFontLimit) {
         return false;
     }
 
     if (!fEnableDFRendering && !skPaint.isDistanceFieldTextTEMP() &&
-        scaledTextSize < kLargeDFFontSize) {
+        scaledTextSize < kLargeGlyphLimit) {
         return false;
     }
 
     // rasterizers and mask filters modify alpha, which doesn't
     // translate well to distance
     if (skPaint.getRasterizer() || skPaint.getMaskFilter() ||
         !fContext->caps()->shaderCaps()->shaderDerivativeSupport()) {
         return false;
     }
 
@@ skipping 1817 matching lines @@
             gTextContext->createDrawTextBlob(rt, clip, grPaint, skPaint, viewMatrix, text,
                                              static_cast<size_t>(textLen), 0, 0, noClip));
 
     SkScalar transX = static_cast<SkScalar>(random->nextU());
     SkScalar transY = static_cast<SkScalar>(random->nextU());
     const GrAtlasTextContext::BitmapTextBlob::Run::SubRunInfo& info = blob->fRuns[0].fSubRunInfo[0];
     return gTextContext->createBatch(blob, info, textLen, 0, 0, color, transX, transY, skPaint);
 }
 
 #endif