Brian Salomon | 0dda9cb | 2017-02-03 10:33:25 -0500 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2017 Google Inc. |
| 3 | * |
| 4 | * Use of this source code is governed by a BSD-style license that can be |
| 5 | * found in the LICENSE file. |
| 6 | */ |
| 7 | |
| 8 | #include "SkCanvas.h" |
| 9 | #include "SkPath.h" |
| 10 | #include "SkShadowTessellator.h" |
| 11 | #include "SkShadowUtils.h" |
Brian Salomon | aff27a2 | 2017-02-06 15:47:44 -0500 | [diff] [blame] | 12 | #include "SkVertices.h" |
Brian Salomon | 0dda9cb | 2017-02-03 10:33:25 -0500 | [diff] [blame] | 13 | #include "Test.h" |
| 14 | |
Jim Van Verth | a84898d | 2017-02-06 13:38:23 -0500 | [diff] [blame] | 15 | void tessellate_shadow(skiatest::Reporter* reporter, const SkPath& path, const SkMatrix& ctm, |
| 16 | bool expectSuccess) { |
Jim Van Verth | b436655 | 2017-03-27 14:25:29 -0400 | [diff] [blame] | 17 | |
Jim Van Verth | e308a12 | 2017-05-08 14:19:30 -0400 | [diff] [blame] | 18 | auto heightParams = SkPoint3::Make(0, 0, 4); |
Mike Klein | 9866817 | 2017-04-13 12:20:21 -0400 | [diff] [blame] | 19 | |
Jim Van Verth | e308a12 | 2017-05-08 14:19:30 -0400 | [diff] [blame] | 20 | auto verts = SkShadowTessellator::MakeAmbient(path, ctm, heightParams, true); |
Brian Salomon | 0dda9cb | 2017-02-03 10:33:25 -0500 | [diff] [blame] | 21 | if (expectSuccess != SkToBool(verts)) { |
Brian Salomon | aff27a2 | 2017-02-06 15:47:44 -0500 | [diff] [blame] | 22 | ERRORF(reporter, "Expected shadow tessellation to %s but it did not.", |
Brian Salomon | 0dda9cb | 2017-02-03 10:33:25 -0500 | [diff] [blame] | 23 | expectSuccess ? "succeed" : "fail"); |
| 24 | } |
Jim Van Verth | e308a12 | 2017-05-08 14:19:30 -0400 | [diff] [blame] | 25 | verts = SkShadowTessellator::MakeAmbient(path, ctm, heightParams, false); |
Brian Salomon | 0dda9cb | 2017-02-03 10:33:25 -0500 | [diff] [blame] | 26 | if (expectSuccess != SkToBool(verts)) { |
Brian Salomon | aff27a2 | 2017-02-06 15:47:44 -0500 | [diff] [blame] | 27 | ERRORF(reporter, "Expected shadow tessellation to %s but it did not.", |
Brian Salomon | 0dda9cb | 2017-02-03 10:33:25 -0500 | [diff] [blame] | 28 | expectSuccess ? "succeed" : "fail"); |
| 29 | } |
Jim Van Verth | e308a12 | 2017-05-08 14:19:30 -0400 | [diff] [blame] | 30 | verts = SkShadowTessellator::MakeSpot(path, ctm, heightParams, {0, 0, 128}, 128.f, false); |
Brian Salomon | 0dda9cb | 2017-02-03 10:33:25 -0500 | [diff] [blame] | 31 | if (expectSuccess != SkToBool(verts)) { |
Brian Salomon | aff27a2 | 2017-02-06 15:47:44 -0500 | [diff] [blame] | 32 | ERRORF(reporter, "Expected shadow tessellation to %s but it did not.", |
Brian Salomon | 0dda9cb | 2017-02-03 10:33:25 -0500 | [diff] [blame] | 33 | expectSuccess ? "succeed" : "fail"); |
| 34 | } |
Jim Van Verth | e308a12 | 2017-05-08 14:19:30 -0400 | [diff] [blame] | 35 | verts = SkShadowTessellator::MakeSpot(path, ctm, heightParams, {0, 0, 128}, 128.f, false); |
Brian Salomon | 0dda9cb | 2017-02-03 10:33:25 -0500 | [diff] [blame] | 36 | if (expectSuccess != SkToBool(verts)) { |
Brian Salomon | aff27a2 | 2017-02-06 15:47:44 -0500 | [diff] [blame] | 37 | ERRORF(reporter, "Expected shadow tessellation to %s but it did not.", |
Brian Salomon | 0dda9cb | 2017-02-03 10:33:25 -0500 | [diff] [blame] | 38 | expectSuccess ? "succeed" : "fail"); |
| 39 | } |
| 40 | } |
| 41 | |
| 42 | DEF_TEST(ShadowUtils, reporter) { |
| 43 | SkCanvas canvas(100, 100); |
Mike Klein | 9866817 | 2017-04-13 12:20:21 -0400 | [diff] [blame] | 44 | |
Brian Salomon | 0dda9cb | 2017-02-03 10:33:25 -0500 | [diff] [blame] | 45 | SkPath path; |
| 46 | path.cubicTo(100, 50, 20, 100, 0, 0); |
Mike Klein | 9866817 | 2017-04-13 12:20:21 -0400 | [diff] [blame] | 47 | tessellate_shadow(reporter, path, canvas.getTotalMatrix(), true); |
Brian Salomon | 0dda9cb | 2017-02-03 10:33:25 -0500 | [diff] [blame] | 48 | |
| 49 | // This line segment has no area and no shadow. |
| 50 | path.reset(); |
| 51 | path.lineTo(10.f, 10.f); |
Jim Van Verth | a84898d | 2017-02-06 13:38:23 -0500 | [diff] [blame] | 52 | tessellate_shadow(reporter, path, canvas.getTotalMatrix(), false); |
Brian Salomon | 0dda9cb | 2017-02-03 10:33:25 -0500 | [diff] [blame] | 53 | |
| 54 | // A series of colinear line segments |
| 55 | path.reset(); |
| 56 | for (int i = 0; i < 10; ++i) { |
| 57 | path.lineTo((SkScalar)i, (SkScalar)i); |
| 58 | } |
Jim Van Verth | a84898d | 2017-02-06 13:38:23 -0500 | [diff] [blame] | 59 | tessellate_shadow(reporter, path, canvas.getTotalMatrix(), false); |
Brian Salomon | 0dda9cb | 2017-02-03 10:33:25 -0500 | [diff] [blame] | 60 | } |