1*c8dee2aaSAndroid Build Coastguard Worker // Copyright 2019 Google LLC.
2*c8dee2aaSAndroid Build Coastguard Worker // Use of this source code is governed by a BSD-style license that can be found in the LICENSE file.
3*c8dee2aaSAndroid Build Coastguard Worker #include "tools/fiddle/examples.h"
4*c8dee2aaSAndroid Build Coastguard Worker REG_FIDDLE(Difference, 256, 256, false, 5) {
draw(SkCanvas * canvas)5*c8dee2aaSAndroid Build Coastguard Worker void draw(SkCanvas* canvas) {
6*c8dee2aaSAndroid Build Coastguard Worker canvas->drawImage(image, 0, 0);
7*c8dee2aaSAndroid Build Coastguard Worker canvas->drawImage(image, 128, 0);
8*c8dee2aaSAndroid Build Coastguard Worker canvas->drawImage(image, 0, 128);
9*c8dee2aaSAndroid Build Coastguard Worker canvas->drawImage(image, 128, 128);
10*c8dee2aaSAndroid Build Coastguard Worker SkPaint paint;
11*c8dee2aaSAndroid Build Coastguard Worker paint.setBlendMode(SkBlendMode::kDstATop);
12*c8dee2aaSAndroid Build Coastguard Worker SkColor alphas[] = { SK_ColorBLACK, SK_ColorTRANSPARENT };
13*c8dee2aaSAndroid Build Coastguard Worker SkPoint vert[] = { { 0, 0 }, { 0, 256 } };
14*c8dee2aaSAndroid Build Coastguard Worker paint.setShader(SkGradientShader::MakeLinear(vert, alphas, nullptr, std::size(alphas),
15*c8dee2aaSAndroid Build Coastguard Worker SkTileMode::kClamp));
16*c8dee2aaSAndroid Build Coastguard Worker canvas->drawPaint(paint);
17*c8dee2aaSAndroid Build Coastguard Worker canvas->clipRect( { 30, 30, 226, 226 } );
18*c8dee2aaSAndroid Build Coastguard Worker canvas->drawColor(0x80bb9977, SkBlendMode::kDifference);
19*c8dee2aaSAndroid Build Coastguard Worker }
20*c8dee2aaSAndroid Build Coastguard Worker } // END FIDDLE
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