1 /*
2 * Copyright 2011 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 "include/core/SkBitmap.h"
9 #include "include/core/SkCanvas.h"
10 #include "include/core/SkPoint3.h"
11 #include "include/core/SkTypes.h"
12 #include "include/effects/SkImageFilters.h"
13 #include "src/core/SkArenaAlloc.h"
14 #include "tests/Test.h"
15
test_drawBitmap(skiatest::Reporter * reporter)16 static void test_drawBitmap(skiatest::Reporter* reporter) {
17 SkBitmap src;
18 src.allocN32Pixels(10, 10);
19 src.eraseColor(SK_ColorWHITE);
20
21 SkBitmap dst;
22 dst.allocN32Pixels(10, 10);
23 dst.eraseColor(SK_ColorTRANSPARENT);
24
25 SkCanvas canvas(dst);
26
27 // we are initially transparent
28 REPORTER_ASSERT(reporter, 0 == *dst.getAddr32(5, 5));
29
30 // we see the bitmap drawn
31 canvas.drawImage(src.asImage(), 0, 0);
32 REPORTER_ASSERT(reporter, 0xFFFFFFFF == *dst.getAddr32(5, 5));
33
34 // reverify we are clear again
35 dst.eraseColor(SK_ColorTRANSPARENT);
36 REPORTER_ASSERT(reporter, 0 == *dst.getAddr32(5, 5));
37
38 // if the bitmap is clipped out, we don't draw it
39 canvas.drawImage(src.asImage(), SkIntToScalar(-10), 0);
40 REPORTER_ASSERT(reporter, 0 == *dst.getAddr32(5, 5));
41 }
42
test_layers(skiatest::Reporter * reporter)43 static void test_layers(skiatest::Reporter* reporter) {
44 SkCanvas canvas(100, 100);
45
46 SkRect r = SkRect::MakeWH(10, 10);
47 REPORTER_ASSERT(reporter, false == canvas.quickReject(r));
48
49 r.offset(300, 300);
50 REPORTER_ASSERT(reporter, true == canvas.quickReject(r));
51
52 // Test that saveLayer updates quickReject
53 SkRect bounds = SkRect::MakeLTRB(50, 50, 70, 70);
54 canvas.saveLayer(&bounds, nullptr);
55 REPORTER_ASSERT(reporter, true == canvas.quickReject(SkRect::MakeWH(10, 10)));
56 REPORTER_ASSERT(reporter, false == canvas.quickReject(SkRect::MakeWH(60, 60)));
57 }
58
test_quick_reject(skiatest::Reporter * reporter)59 static void test_quick_reject(skiatest::Reporter* reporter) {
60 SkCanvas canvas(100, 100);
61 SkRect r0 = SkRect::MakeLTRB(-50.0f, -50.0f, 50.0f, 50.0f);
62 SkRect r1 = SkRect::MakeLTRB(-50.0f, 110.0f, 50.0f, 120.0f);
63 SkRect r2 = SkRect::MakeLTRB(110.0f, -50.0f, 120.0f, 50.0f);
64 SkRect r3 = SkRect::MakeLTRB(-120.0f, -50.0f, 120.0f, 50.0f);
65 SkRect r4 = SkRect::MakeLTRB(-50.0f, -120.0f, 50.0f, 120.0f);
66 SkRect r5 = SkRect::MakeLTRB(-120.0f, -120.0f, 120.0f, 120.0f);
67 SkRect r6 = SkRect::MakeLTRB(-120.0f, -120.0f, -110.0f, -110.0f);
68 SkRect r7 = SkRect::MakeLTRB(SK_ScalarNaN, -50.0f, 50.0f, 50.0f);
69 SkRect r8 = SkRect::MakeLTRB(-50.0f, SK_ScalarNaN, 50.0f, 50.0f);
70 SkRect r9 = SkRect::MakeLTRB(-50.0f, -50.0f, SK_ScalarNaN, 50.0f);
71 SkRect r10 = SkRect::MakeLTRB(-50.0f, -50.0f, 50.0f, SK_ScalarNaN);
72 REPORTER_ASSERT(reporter, false == canvas.quickReject(r0));
73 REPORTER_ASSERT(reporter, true == canvas.quickReject(r1));
74 REPORTER_ASSERT(reporter, true == canvas.quickReject(r2));
75 REPORTER_ASSERT(reporter, false == canvas.quickReject(r3));
76 REPORTER_ASSERT(reporter, false == canvas.quickReject(r4));
77 REPORTER_ASSERT(reporter, false == canvas.quickReject(r5));
78 REPORTER_ASSERT(reporter, true == canvas.quickReject(r6));
79 REPORTER_ASSERT(reporter, true == canvas.quickReject(r7));
80 REPORTER_ASSERT(reporter, true == canvas.quickReject(r8));
81 REPORTER_ASSERT(reporter, true == canvas.quickReject(r9));
82 REPORTER_ASSERT(reporter, true == canvas.quickReject(r10));
83
84 SkMatrix m = SkMatrix::Scale(2, 2);
85 m.setTranslateX(10.0f);
86 m.setTranslateY(10.0f);
87 canvas.setMatrix(m);
88 SkRect r11 = SkRect::MakeLTRB(5.0f, 5.0f, 100.0f, 100.0f);
89 SkRect r12 = SkRect::MakeLTRB(5.0f, 50.0f, 100.0f, 100.0f);
90 SkRect r13 = SkRect::MakeLTRB(50.0f, 5.0f, 100.0f, 100.0f);
91 REPORTER_ASSERT(reporter, false == canvas.quickReject(r11));
92 REPORTER_ASSERT(reporter, true == canvas.quickReject(r12));
93 REPORTER_ASSERT(reporter, true == canvas.quickReject(r13));
94 }
95
DEF_TEST(QuickReject,reporter)96 DEF_TEST(QuickReject, reporter) {
97 test_drawBitmap(reporter);
98 test_layers(reporter);
99 test_quick_reject(reporter);
100 }
101
102 // Regression test to make sure that we keep fIsScaleTranslate up to date on the canvas.
103 // It is possible to set a new matrix on the canvas without calling setMatrix(). This tests
104 // that code path.
DEF_TEST(QuickReject_MatrixState,reporter)105 DEF_TEST(QuickReject_MatrixState, reporter) {
106 SkCanvas canvas(100, 100);
107
108 SkMatrix matrix;
109 matrix.setRotate(45.0f);
110 canvas.setMatrix(matrix);
111
112 SkPaint paint;
113 sk_sp<SkImageFilter> filter = SkImageFilters::DistantLitDiffuse(
114 SkPoint3::Make(1.0f, 1.0f, 1.0f), 0xFF0000FF, 2.0f, 0.5f, nullptr);
115 REPORTER_ASSERT(reporter, filter);
116 paint.setImageFilter(filter);
117 SkCanvas::SaveLayerRec rec;
118 rec.fPaint = &paint;
119 canvas.saveLayer(rec);
120
121 // quickReject() will assert if the matrix is out of sync.
122 canvas.quickReject(SkRect::MakeWH(100.0f, 100.0f));
123 }
124