Revert[8] "replace SkXfermode obj with SkBlendMode enum in paints"

gm/texteffects.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 "gm.h"
 #include "SkBlurMask.h"
 #include "SkBlurMaskFilter.h"
 #include "SkReadBuffer.h"
 #include "SkTextBlob.h"
 #include "SkWriteBuffer.h"
 #include "SkLayerRasterizer.h"
 
 static void r0(SkLayerRasterizer::Builder* rastBuilder, SkPaint& p) {
     p.setMaskFilter(SkBlurMaskFilter::Make(kNormal_SkBlurStyle,
                                            SkBlurMask::ConvertRadiusToSigma(SkIntToScalar(3))));
     rastBuilder->addLayer(p, SkIntToScalar(3), SkIntToScalar(3));
 
     p.setMaskFilter(nullptr);
     p.setStyle(SkPaint::kStroke_Style);
     p.setStrokeWidth(SK_Scalar1);
     rastBuilder->addLayer(p);
 
     p.setAlpha(0x11);
     p.setStyle(SkPaint::kFill_Style);
-    p.setXfermodeMode(SkXfermode::kSrc_Mode);
+    p.setBlendMode(SkBlendMode::kSrc);
     rastBuilder->addLayer(p);
 }
 
 static void r1(SkLayerRasterizer::Builder* rastBuilder, SkPaint& p) {
     rastBuilder->addLayer(p);
 
     p.setAlpha(0x40);
-    p.setXfermodeMode(SkXfermode::kSrc_Mode);
+    p.setBlendMode(SkBlendMode::kSrc);
     p.setStyle(SkPaint::kStroke_Style);
     p.setStrokeWidth(SK_Scalar1*2);
     rastBuilder->addLayer(p);
 }
 
 static void r2(SkLayerRasterizer::Builder* rastBuilder, SkPaint& p) {
     p.setStyle(SkPaint::kStrokeAndFill_Style);
     p.setStrokeWidth(SK_Scalar1*4);
     rastBuilder->addLayer(p);
 
     p.setStyle(SkPaint::kStroke_Style);
     p.setStrokeWidth(SK_Scalar1*3/2);
-    p.setXfermodeMode(SkXfermode::kClear_Mode);
+    p.setBlendMode(SkBlendMode::kClear);
     rastBuilder->addLayer(p);
 }
 
 static void r3(SkLayerRasterizer::Builder* rastBuilder, SkPaint& p) {
     p.setStyle(SkPaint::kStroke_Style);
     p.setStrokeWidth(SK_Scalar1*3);
     rastBuilder->addLayer(p);
 
     p.setAlpha(0x20);
     p.setStyle(SkPaint::kFill_Style);
-    p.setXfermodeMode(SkXfermode::kSrc_Mode);
+    p.setBlendMode(SkBlendMode::kSrc);
     rastBuilder->addLayer(p);
 }
 
 static void r4(SkLayerRasterizer::Builder* rastBuilder, SkPaint& p) {
     p.setAlpha(0x60);
     rastBuilder->addLayer(p, SkIntToScalar(3), SkIntToScalar(3));
 
     p.setAlpha(0xFF);
-    p.setXfermodeMode(SkXfermode::kClear_Mode);
+    p.setBlendMode(SkBlendMode::kClear);
     rastBuilder->addLayer(p, SK_Scalar1*3/2, SK_Scalar1*3/2);
 
-    p.setXfermode(nullptr);
+    p.setBlendMode(SkBlendMode::kSrcOver);
     rastBuilder->addLayer(p);
 }
 
 #include "SkDiscretePathEffect.h"
 
 static void r5(SkLayerRasterizer::Builder* rastBuilder, SkPaint& p) {
     rastBuilder->addLayer(p);
 
     p.setPathEffect(SkDiscretePathEffect::Make(SK_Scalar1*4, SK_Scalar1*3));
-    p.setXfermodeMode(SkXfermode::kSrcOut_Mode);
+    p.setBlendMode(SkBlendMode::kSrcOut);
     rastBuilder->addLayer(p);
 }
 
 static void r6(SkLayerRasterizer::Builder* rastBuilder, SkPaint& p) {
     rastBuilder->addLayer(p);
 
     p.setAntiAlias(false);
     SkLayerRasterizer::Builder rastBuilder2;
     r5(&rastBuilder2, p);
     p.setRasterizer(rastBuilder2.detach());
-    p.setXfermodeMode(SkXfermode::kClear_Mode);
+    p.setBlendMode(SkBlendMode::kClear);
     rastBuilder->addLayer(p);
 }
 
 #include "Sk2DPathEffect.h"
 
 static sk_sp<SkPathEffect> MakeDotEffect(SkScalar radius, const SkMatrix& matrix) {
     SkPath path;
     path.addCircle(0, 0, radius);
     return SkPath2DPathEffect::Make(matrix, path);
 }
 
 static void r7(SkLayerRasterizer::Builder* rastBuilder, SkPaint& p) {
     SkMatrix    lattice;
     lattice.setScale(SK_Scalar1*6, SK_Scalar1*6, 0, 0);
     lattice.postSkew(SK_Scalar1/3, 0, 0, 0);
     p.setPathEffect(MakeDotEffect(SK_Scalar1*4, lattice));
     rastBuilder->addLayer(p);
 }
 
 static void r8(SkLayerRasterizer::Builder* rastBuilder, SkPaint& p) {
     rastBuilder->addLayer(p);
 
     SkMatrix    lattice;
     lattice.setScale(SK_Scalar1*6, SK_Scalar1*6, 0, 0);
     lattice.postSkew(SK_Scalar1/3, 0, 0, 0);
     p.setPathEffect(MakeDotEffect(SK_Scalar1*2, lattice));
-    p.setXfermodeMode(SkXfermode::kClear_Mode);
+    p.setBlendMode(SkBlendMode::kClear);
     rastBuilder->addLayer(p);
 
     p.setPathEffect(nullptr);
-    p.setXfermode(nullptr);
+    p.setBlendMode(SkBlendMode::kSrcOver);
     p.setStyle(SkPaint::kStroke_Style);
     p.setStrokeWidth(SK_Scalar1);
     rastBuilder->addLayer(p);
 }
 
 static void r9(SkLayerRasterizer::Builder* rastBuilder, SkPaint& p) {
     rastBuilder->addLayer(p);
 
     SkMatrix    lattice;
     lattice.setScale(SK_Scalar1, SK_Scalar1*6, 0, 0);
     lattice.postRotate(SkIntToScalar(30), 0, 0);
     p.setPathEffect(SkLine2DPathEffect::Make(SK_Scalar1*2, lattice));
-    p.setXfermodeMode(SkXfermode::kClear_Mode);
+    p.setBlendMode(SkBlendMode::kClear);
     rastBuilder->addLayer(p);
 
     p.setPathEffect(nullptr);
-    p.setXfermode(nullptr);
+    p.setBlendMode(SkBlendMode::kSrcOver);
     p.setStyle(SkPaint::kStroke_Style);
     p.setStrokeWidth(SK_Scalar1);
     rastBuilder->addLayer(p);
 }
 
 typedef void (*raster_proc)(SkLayerRasterizer::Builder*, SkPaint&);
 
 constexpr raster_proc gRastProcs[] = {
     r0, r1, r2, r3, r4, r5, r6, r7, r8, r9
 };
@@ skipping 337 matching lines @@
 
         SkScalar start = textPt.fX;
         SkScalar end = posX;
         SkScalar uPos = pos[0].fY + uWidth;
         SkPath underline = create_underline(intersections, start, end, uPos, uWidth, textSize);
         paint.setStyle(SkPaint::kStroke_Style);
         canvas->drawPath(underline, paint);
         canvas->translate(0, textSize * 1.3f);
     }
 }