1 /*
2 * Copyright 2024 Google LLC
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/SkAlphaType.h"
9 #include "include/core/SkCanvas.h"
10 #include "include/core/SkColor.h"
11 #include "include/core/SkFontMgr.h"
12 #include "include/core/SkFontStyle.h"
13 #include "include/core/SkImageInfo.h"
14 #include "include/core/SkPixmap.h"
15 #include "include/core/SkRefCnt.h"
16 #include "include/core/SkStream.h"
17 #include "include/core/SkSurface.h"
18 #include "include/encode/SkPngEncoder.h"
19 #include "modules/svg/include/SkSVGDOM.h"
20 #include "modules/skshaper/utils/FactoryHelpers.h"
21
22 #if defined(SK_FONTMGR_FONTCONFIG_AVAILABLE)
23 #include "include/ports/SkFontMgr_fontconfig.h"
24 #endif
25
26 #if defined(SK_FONTMGR_CORETEXT_AVAILABLE)
27 #include "include/ports/SkFontMgr_mac_ct.h"
28 #endif
29
30 #include <cstdio>
31
32 constexpr size_t kWidth = 450;
33 constexpr size_t kHeight = 120;
34
35 // The text in this SVG should be properly shaped if the V and A characters overlap slightly.
36 const char* svg = "<svg viewBox=\"0 0 150 40\" xmlns=\"http://www.w3.org/2000/svg\">"
37 "<style>"
38 "text {"
39 "font: 13px sans-serif;"
40 "}"
41 "</style>"
42 "<text x=\"10\" y=\"30\">VAVAVAVA</text>"
43 "</svg>";
44
main(int argc,char ** argv)45 int main(int argc, char** argv) {
46 if (argc != 2) {
47 printf("Usage: %s <name.png>", argv[0]);
48 return 1;
49 }
50 SkFILEWStream output(argv[1]);
51 if (!output.isValid()) {
52 printf("Cannot open output file %s\n", argv[1]);
53 return 1;
54 }
55
56 // If necessary, clients should use a font manager that would load fonts from the system.
57 sk_sp<SkFontMgr> fontMgr;
58 #if defined(SK_FONTMGR_FONTCONFIG_AVAILABLE)
59 fontMgr = SkFontMgr_New_FontConfig(nullptr);
60 #elif defined(SK_FONTMGR_CORETEXT_AVAILABLE)
61 fontMgr = SkFontMgr_New_CoreText(nullptr);
62 #endif
63 if (!fontMgr) {
64 printf("No Font Manager configured\n");
65 return 1;
66 }
67
68 SkMemoryStream svgStream(svg, std::strlen(svg));
69
70 auto svg_dom = SkSVGDOM::Builder()
71 .setFontManager(fontMgr)
72 .setTextShapingFactory(SkShapers::BestAvailable())
73 .make(svgStream);
74
75 if (!svg_dom) {
76 printf("Could not parse compiled-in svg\n");
77 return 1;
78 }
79
80 auto surface = SkSurfaces::Raster(SkImageInfo::MakeN32Premul(kWidth, kHeight));
81
82 svg_dom->setContainerSize(SkSize::Make(kWidth, kHeight));
83 svg_dom->render(surface->getCanvas());
84
85 SkPixmap pixmap;
86 surface->peekPixels(&pixmap);
87
88 if (!SkPngEncoder::Encode(&output, pixmap, {})) {
89 printf("PNG encoding failed.\n");
90 return 1;
91 }
92 printf("Success!\n");
93 return 0;
94 }
95