23 lines
907 B
C++
23 lines
907 B
C++
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// Copyright 2019 Google LLC.
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// Use of this source code is governed by a BSD-style license that can be found in the LICENSE file.
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#include "fiddle/examples.h"
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// HASH=39016b3cfc6bbabb09348a53822ce508
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REG_FIDDLE(Matrix_094, 256, 256, true, 0) {
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void draw(SkCanvas* canvas) {
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auto debugster = [](const char* prefix, const SkMatrix& a, const SkMatrix& b) -> void {
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SkDebugf("%s: a %c= b a.cheapEqualTo(b): %s\n", prefix,
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a == b ? '=' : '!', a.cheapEqualTo(b) ? "true" : "false");
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};
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SkMatrix a, b;
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a.setAll(1, 0, 0, 0, 1, 0, 0, 0, 1);
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b.setIdentity();
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debugster("identity", a, b);
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a.setAll(1, -0.0f, 0, 0, 1, 0, 0, 0, 1);
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debugster("neg zero", a, b);
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a.setAll(1, SK_ScalarNaN, 0, 0, 1, 0, 0, 0, 1);
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debugster(" one NaN", a, b);
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b.setAll(1, SK_ScalarNaN, 0, 0, 1, 0, 0, 0, 1);
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debugster("both NaN", a, b);
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}
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} // END FIDDLE
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