1 /*
2 * Copyright 2018 The Android Open Source Project
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 "SkGlyphRun.h"
9
10 #include "SkTextBlob.h"
11 #include "Test.h"
12
13 #include <algorithm>
14 #include <memory>
15
DEF_TEST(GlyphRunGlyphIDSetBasic,reporter)16 DEF_TEST(GlyphRunGlyphIDSetBasic, reporter) {
17 SkGlyphID glyphs[] = {100, 3, 240, 3, 234};
18 auto glyphIDs = SkSpan<const SkGlyphID>(glyphs, SK_ARRAY_COUNT(glyphs));
19 int universeSize = 1000;
20 SkGlyphID uniqueGlyphs[SK_ARRAY_COUNT(glyphs)];
21 uint16_t denseIndices[SK_ARRAY_COUNT(glyphs)];
22
23 SkGlyphIDSet gs;
24 auto uniqueGlyphIDs = gs.uniquifyGlyphIDs(universeSize, glyphIDs, uniqueGlyphs, denseIndices);
25
26 std::vector<SkGlyphID> test{uniqueGlyphIDs.begin(), uniqueGlyphIDs.end()};
27 std::sort(test.begin(), test.end());
28 auto newEnd = std::unique(test.begin(), test.end());
29 REPORTER_ASSERT(reporter, uniqueGlyphIDs.size() == (size_t)(newEnd - test.begin()));
30 REPORTER_ASSERT(reporter, uniqueGlyphIDs.size() == 4);
31 {
32 uint16_t answer[] = {0, 1, 2, 1, 3};
33 REPORTER_ASSERT(reporter,
34 std::equal(answer, std::end(answer), denseIndices));
35 }
36
37 {
38 SkGlyphID answer[] = {100, 3, 240, 234};
39 REPORTER_ASSERT(reporter,
40 std::equal(answer, std::end(answer), uniqueGlyphs));
41 }
42 }
43
44 #if 0 // should we revitalize this by consing up a device for drawTextBlob() ?
45 DEF_TEST(GlyphRunBlob, reporter) {
46 constexpr uint16_t count = 5;
47 constexpr int runCount = 2;
48
49 auto tf = SkTypeface::MakeFromName("monospace", SkFontStyle());
50
51 SkFont font;
52 font.setTypeface(tf);
53 font.setHinting(kNormal_SkFontHinting);
54 font.setSize(1u);
55
56 SkTextBlobBuilder blobBuilder;
57 for (int runNum = 0; runNum < runCount; runNum++) {
58 const auto& runBuffer = blobBuilder.allocRunPosH(font, count, runNum);
59 SkASSERT(runBuffer.utf8text == nullptr);
60 SkASSERT(runBuffer.clusters == nullptr);
61
62 for (int i = 0; i < count; i++) {
63 runBuffer.glyphs[i] = static_cast<SkGlyphID>(i + runNum * count);
64 runBuffer.pos[i] = SkIntToScalar(i + runNum * count);
65 }
66 }
67
68 auto blob = blobBuilder.make();
69
70 SkGlyphRunBuilder runBuilder;
71 SkPaint legacy_paint;
72 font.LEGACY_applyToPaint(&legacy_paint);
73 runBuilder.drawTextBlob(legacy_paint, *blob, SkPoint::Make(0, 0));
74
75 auto runList = runBuilder.useGlyphRunList();
76
77 REPORTER_ASSERT(reporter, runList.size() == runCount);
78 int runIndex = 0;
79 for (auto& run : runList) {
80 REPORTER_ASSERT(reporter, run.runSize() == count);
81
82 int index = 0;
83 for (auto p : run.positions()) {
84 if (p.x() != runIndex * count + index) {
85 ERRORF(reporter, "x: %g != k: %d", p.x(), runIndex * count + index);
86 break;
87 }
88 index += 1;
89 }
90
91 runIndex += 1;
92 }
93 }
94 #endif
95