9866817d5f
It thinks it should fail, but it doesn't. Change-Id: Ie97f57dd7a9040a817b59186b2f8fa704bdda3e9 Reviewed-on: https://skia-review.googlesource.com/13404 Reviewed-by: Jim Van Verth <jvanverth@google.com> Commit-Queue: Mike Klein <mtklein@chromium.org>
65 lines
2.3 KiB
C++
65 lines
2.3 KiB
C++
/*
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* Copyright 2017 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include "SkCanvas.h"
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#include "SkPath.h"
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#include "SkShadowTessellator.h"
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#include "SkShadowUtils.h"
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#include "SkVertices.h"
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#include "Test.h"
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void tessellate_shadow(skiatest::Reporter* reporter, const SkPath& path, const SkMatrix& ctm,
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bool expectSuccess) {
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static constexpr SkScalar kAmbientAlpha = 0.25f;
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static constexpr SkScalar kSpotAlpha = 0.25f;
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auto heightFunc = [] (SkScalar, SkScalar) { return 4; };
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auto verts = SkShadowTessellator::MakeAmbient(path, ctm, heightFunc, kAmbientAlpha, true);
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if (expectSuccess != SkToBool(verts)) {
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ERRORF(reporter, "Expected shadow tessellation to %s but it did not.",
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expectSuccess ? "succeed" : "fail");
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}
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verts = SkShadowTessellator::MakeAmbient(path, ctm, heightFunc, kAmbientAlpha, false);
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if (expectSuccess != SkToBool(verts)) {
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ERRORF(reporter, "Expected shadow tessellation to %s but it did not.",
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expectSuccess ? "succeed" : "fail");
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}
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verts = SkShadowTessellator::MakeSpot(path, ctm, heightFunc, {0, 0, 128}, 128.f,
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kSpotAlpha, false);
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if (expectSuccess != SkToBool(verts)) {
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ERRORF(reporter, "Expected shadow tessellation to %s but it did not.",
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expectSuccess ? "succeed" : "fail");
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}
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verts = SkShadowTessellator::MakeSpot(path, ctm, heightFunc, {0, 0, 128}, 128.f,
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kSpotAlpha, false);
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if (expectSuccess != SkToBool(verts)) {
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ERRORF(reporter, "Expected shadow tessellation to %s but it did not.",
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expectSuccess ? "succeed" : "fail");
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}
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}
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DEF_TEST(ShadowUtils, reporter) {
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SkCanvas canvas(100, 100);
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SkPath path;
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path.cubicTo(100, 50, 20, 100, 0, 0);
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tessellate_shadow(reporter, path, canvas.getTotalMatrix(), true);
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// This line segment has no area and no shadow.
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path.reset();
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path.lineTo(10.f, 10.f);
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tessellate_shadow(reporter, path, canvas.getTotalMatrix(), false);
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// A series of colinear line segments
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path.reset();
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for (int i = 0; i < 10; ++i) {
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path.lineTo((SkScalar)i, (SkScalar)i);
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}
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tessellate_shadow(reporter, path, canvas.getTotalMatrix(), false);
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}
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