1 /*
2 * Copyright 2019 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/SkFont.h"
9 #include "src/core/SkAutoMalloc.h"
10 #include "src/core/SkFontPriv.h"
11 #include "src/core/SkReadBuffer.h"
12 #include "src/core/SkWriteBuffer.h"
13 #include "tests/Test.h"
14
serialize_deserialize(const SkFont & font,skiatest::Reporter * reporter)15 static SkFont serialize_deserialize(const SkFont& font, skiatest::Reporter* reporter) {
16 SkBinaryWriteBuffer wb;
17 SkFontPriv::Flatten(font, wb);
18
19 size_t size = wb.bytesWritten();
20 SkAutoMalloc storage(size);
21 wb.writeToMemory(storage.get());
22
23 SkReadBuffer rb(storage.get(), size);
24
25 SkFont clone;
26 REPORTER_ASSERT(reporter, SkFontPriv::Unflatten(&clone, rb));
27 return clone;
28 }
29
30 enum {
31 kForceAutoHinting = 1 << 0,
32 kEmbeddedBitmaps = 1 << 1,
33 kSubpixel = 1 << 2,
34 kLinearMetrics = 1 << 3,
35 kEmbolden = 1 << 4,
36 kBaselineSnap = 1 << 5,
37
38 kAllBits = 0x3F,
39 };
40
apply_flags(SkFont * font,unsigned flags)41 static void apply_flags(SkFont* font, unsigned flags) {
42 font->setForceAutoHinting(SkToBool(flags & kForceAutoHinting));
43 font->setEmbeddedBitmaps( SkToBool(flags & kEmbeddedBitmaps));
44 font->setSubpixel( SkToBool(flags & kSubpixel));
45 font->setLinearMetrics( SkToBool(flags & kLinearMetrics));
46 font->setEmbolden( SkToBool(flags & kEmbolden));
47 font->setBaselineSnap( SkToBool(flags & kBaselineSnap));
48 }
49
DEF_TEST(Font_flatten,reporter)50 DEF_TEST(Font_flatten, reporter) {
51 const float sizes[] = {0, 0.001f, 1, 10, 10.001f, 100, 100000, 100000.01f};
52 const float scales[] = {-5, -1, 0, 1, 5};
53 const float skews[] = {-5, -1, 0, 1, 5};
54 const SkFont::Edging edges[] = {
55 SkFont::Edging::kAlias, SkFont::Edging::kAntiAlias, SkFont::Edging::kSubpixelAntiAlias
56 };
57 const SkFontHinting hints[] = {
58 SkFontHinting::kNone, SkFontHinting::kSlight, SkFontHinting::kNormal, SkFontHinting::kFull
59 };
60
61 SkFont font;
62 for (float size : sizes) {
63 font.setSize(size);
64 for (float scale : scales) {
65 font.setScaleX(scale);
66 for (float skew : skews) {
67 font.setSkewX(skew);
68 for (auto edge : edges) {
69 font.setEdging(edge);
70 for (auto hint : hints) {
71 font.setHinting(hint);
72 for (unsigned flags = 0; flags <= kAllBits; ++flags) {
73 apply_flags(&font, flags);
74
75 SkFont clone = serialize_deserialize(font, reporter);
76 REPORTER_ASSERT(reporter, font == clone);
77 }
78 }
79 }
80 }
81 }
82 }
83 }
84