1 /*
2 * Copyright 2021 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 "include/core/SkFontStyle.h"
10 #include "include/core/SkFontTypes.h"
11 #include "include/core/SkImageInfo.h"
12 #include "include/core/SkPaint.h"
13 #include "include/core/SkRefCnt.h"
14 #include "include/core/SkSurface.h"
15 #include "include/core/SkTextBlob.h"
16 #include "include/core/SkTypeface.h"
17 #include "include/core/SkTypes.h"
18 #include "include/gpu/GpuTypes.h"
19 #include "include/gpu/GrDirectContext.h"
20 #include "include/private/base/SkTDArray.h"
21 #include "include/private/chromium/Slug.h"
22 #include "tests/CtsEnforcement.h"
23 #include "tests/Test.h"
24 #include "tools/ToolUtils.h"
25
26 #include <cstdint>
27 #include <cstring>
28
29 struct GrContextOptions;
30
DEF_GANESH_TEST_FOR_RENDERING_CONTEXTS(GrSlug_empty,reporter,ctxInfo,CtsEnforcement::kApiLevel_T)31 DEF_GANESH_TEST_FOR_RENDERING_CONTEXTS(GrSlug_empty,
32 reporter,
33 ctxInfo,
34 CtsEnforcement::kApiLevel_T) {
35 auto dContext = ctxInfo.directContext();
36 SkImageInfo info = SkImageInfo::MakeN32Premul(256, 256);
37 auto surface(SkSurface::MakeRenderTarget(dContext, skgpu::Budgeted::kNo, info));
38 auto canvas = surface->getCanvas();
39
40 static const char* kText = " ";
41 auto typeface = ToolUtils::create_portable_typeface("serif", SkFontStyle());
42 SkFont font(typeface);
43 size_t txtLen = strlen(kText);
44 int glyphCount = font.countText(kText, txtLen, SkTextEncoding::kUTF8);
45
46 SkTDArray<uint16_t> glyphs;
47 glyphs.append(glyphCount);
48 font.textToGlyphs(kText, txtLen, SkTextEncoding::kUTF8, glyphs.begin(), glyphCount);
49
50 SkTextBlobBuilder builder;
51
52 font.setSubpixel(true);
53 font.setEdging(SkFont::Edging::kAntiAlias);
54 font.setTypeface(typeface);
55 font.setSize(16);
56
57 const SkTextBlobBuilder::RunBuffer& buf = builder.allocRun(font, glyphs.size(), 0, 0);
58 memcpy(buf.glyphs, glyphs.begin(), glyphs.size() * sizeof(uint16_t));
59 auto blob = builder.make();
60
61 SkPaint p;
62 p.setAntiAlias(true);
63 sk_sp<sktext::gpu::Slug> slug = sktext::gpu::Slug::ConvertBlob(canvas, *blob, {10, 10}, p);
64 REPORTER_ASSERT(reporter, slug == nullptr);
65 }
66