mixed text blobs really draws LCD

src/core/SkPaint.cpp

 /*
  * 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.
  */
 
 #include "SkPaint.h"
 #include "SkAnnotation.h"
 #include "SkAutoKern.h"
@@ skipping 1225 matching lines @@
     SkRect bounds;
     m.mapRect(&bounds, typeface->getBounds());
     return bounds;
 }
 
 static void add_flattenable(SkDescriptor* desc, uint32_t tag,
                             SkWriteBuffer* buffer) {
     buffer->writeToMemory(desc->addEntry(tag, buffer->bytesWritten(), NULL));
 }
 
-static SkMask::Format computeMaskFormat(const SkPaint& paint) {
+static SkMask::Format compute_mask_format(const SkPaint& paint) {
     uint32_t flags = paint.getFlags();
 
     // Antialiasing being disabled trumps all other settings.
     if (!(flags & SkPaint::kAntiAlias_Flag)) {
         return SkMask::kBW_Format;
     }
 
     if (flags & SkPaint::kLCDRenderText_Flag) {
         return SkMask::kLCD16_Format;
     }
@@ skipping 141 matching lines @@
 
         if (style == SkPaint::kStrokeAndFill_Style) {
             flags |= SkScalerContext::kFrameAndFill_Flag;
         }
     } else {
         rec->fFrameWidth = 0;
         rec->fMiterLimit = 0;
         rec->fStrokeJoin = 0;
     }
 
-    rec->fMaskFormat = SkToU8(computeMaskFormat(paint));
+    rec->fMaskFormat = SkToU8(compute_mask_format(paint));
 
     if (SkMask::kLCD16_Format == rec->fMaskFormat) {
         if (too_big_for_lcd(*rec, checkPost2x2)) {
             rec->fMaskFormat = SkMask::kA8_Format;
             flags |= SkScalerContext::kGenA8FromLCD_Flag;
         } else {
             SkPixelGeometry geometry = surfaceProps
                                      ? surfaceProps->pixelGeometry()
                                      : SkSurfacePropsDefaultPixelGeometry();
             switch (geometry) {
@@ skipping 998 matching lines @@
 }
 
 uint32_t SkPaint::getHash() const {
     // We're going to hash 10 pointers and 7 32-bit values, finishing up with fBitfields,
     // so fBitfields should be 10 pointers and 6 32-bit values from the start.
     SK_COMPILE_ASSERT(offsetof(SkPaint, fBitfields) == 10 * sizeof(void*) + 6 * sizeof(uint32_t),
                       SkPaint_notPackedTightly);
     return SkChecksum::Murmur3(reinterpret_cast<const uint32_t*>(this),
                                offsetof(SkPaint, fBitfields) + sizeof(fBitfields));
 }