Ben Wagner | 37a06c0 | 2018-06-22 21:11:00 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2014 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 | |
Mike Reed | ac9f0c9 | 2020-12-23 10:11:33 -0500 | [diff] [blame] | 8 | #include "include/core/SkBitmap.h" |
Mike Klein | c0bd9f9 | 2019-04-23 12:05:21 -0500 | [diff] [blame] | 9 | #include "include/core/SkCanvas.h" |
| 10 | #include "include/core/SkFont.h" |
| 11 | #include "include/core/SkFontMgr.h" |
| 12 | #include "include/core/SkTypeface.h" |
| 13 | #include "include/ports/SkFontMgr_fontconfig.h" |
| 14 | #include "tests/Test.h" |
| 15 | #include "tools/Resources.h" |
Ben Wagner | 37a06c0 | 2018-06-22 21:11:00 +0000 | [diff] [blame] | 16 | |
Hal Canary | 8a00144 | 2018-09-19 11:31:27 -0400 | [diff] [blame] | 17 | #include <fontconfig/fontconfig.h> |
| 18 | |
Ben Wagner | 37a06c0 | 2018-06-22 21:11:00 +0000 | [diff] [blame] | 19 | static bool bitmap_compare(const SkBitmap& ref, const SkBitmap& test) { |
| 20 | for (int y = 0; y < test.height(); ++y) { |
| 21 | for (int x = 0; x < test.width(); ++x) { |
| 22 | SkColor testColor = test.getColor(x, y); |
| 23 | SkColor refColor = ref.getColor(x, y); |
| 24 | if (refColor != testColor) { |
| 25 | return false; |
| 26 | } |
| 27 | } |
| 28 | } |
| 29 | return true; |
| 30 | } |
| 31 | |
| 32 | DEF_TEST(FontMgrFontConfig, reporter) { |
| 33 | FcConfig* config = FcConfigCreate(); |
Ben Wagner | 25e371f | 2019-04-05 15:50:34 -0400 | [diff] [blame] | 34 | |
| 35 | // FontConfig may modify the passed path (make absolute or other). |
| 36 | FcConfigSetSysRoot(config, reinterpret_cast<const FcChar8*>(GetResourcePath("").c_str())); |
| 37 | // FontConfig will lexically compare paths against its version of the sysroot. |
| 38 | SkString distortablePath(reinterpret_cast<const char*>(FcConfigGetSysRoot(config))); |
| 39 | distortablePath += "/fonts/Distortable.ttf"; |
| 40 | FcConfigAppFontAddFile(config, reinterpret_cast<const FcChar8*>(distortablePath.c_str())); |
| 41 | |
Ben Wagner | 37a06c0 | 2018-06-22 21:11:00 +0000 | [diff] [blame] | 42 | FcConfigBuildFonts(config); |
| 43 | |
| 44 | sk_sp<SkFontMgr> fontMgr(SkFontMgr_New_FontConfig(config)); |
| 45 | sk_sp<SkTypeface> typeface(fontMgr->legacyMakeTypeface("Distortable", SkFontStyle())); |
Ben Wagner | 25e371f | 2019-04-05 15:50:34 -0400 | [diff] [blame] | 46 | if (!typeface) { |
| 47 | ERRORF(reporter, "Could not find typeface. FcVersion: %d", FcGetVersion()); |
| 48 | return; |
| 49 | } |
Ben Wagner | 37a06c0 | 2018-06-22 21:11:00 +0000 | [diff] [blame] | 50 | |
| 51 | SkBitmap bitmapStream; |
| 52 | bitmapStream.allocN32Pixels(64, 64); |
| 53 | SkCanvas canvasStream(bitmapStream); |
| 54 | canvasStream.drawColor(SK_ColorWHITE); |
| 55 | |
| 56 | SkBitmap bitmapClone; |
| 57 | bitmapClone.allocN32Pixels(64, 64); |
| 58 | SkCanvas canvasClone(bitmapClone); |
| 59 | canvasStream.drawColor(SK_ColorWHITE); |
| 60 | |
Hal Canary | 3560ea7 | 2019-01-08 13:01:58 -0500 | [diff] [blame] | 61 | SkPaint paint; |
| 62 | paint.setColor(SK_ColorGRAY); |
Ben Wagner | 37a06c0 | 2018-06-22 21:11:00 +0000 | [diff] [blame] | 63 | |
Hal Canary | 3560ea7 | 2019-01-08 13:01:58 -0500 | [diff] [blame] | 64 | constexpr float kTextSize = 20; |
Ben Wagner | 37a06c0 | 2018-06-22 21:11:00 +0000 | [diff] [blame] | 65 | |
| 66 | std::unique_ptr<SkStreamAsset> distortableStream( |
| 67 | GetResourceAsStream("fonts/Distortable.ttf")); |
| 68 | if (!distortableStream) { |
| 69 | return; |
| 70 | } |
| 71 | |
Ben Wagner | 37a06c0 | 2018-06-22 21:11:00 +0000 | [diff] [blame] | 72 | SkPoint point = SkPoint::Make(20.0f, 20.0f); |
| 73 | SkFourByteTag tag = SkSetFourByteTag('w', 'g', 'h', 't'); |
| 74 | |
| 75 | for (int i = 0; i < 10; ++i) { |
| 76 | SkScalar styleValue = |
| 77 | SkDoubleToScalar(0.5 + i * ((2.0 - 0.5) / 10)); |
| 78 | SkFontArguments::VariationPosition::Coordinate |
| 79 | coordinates[] = {{tag, styleValue}}; |
| 80 | SkFontArguments::VariationPosition |
| 81 | position = {coordinates, SK_ARRAY_COUNT(coordinates)}; |
| 82 | |
Hal Canary | 3560ea7 | 2019-01-08 13:01:58 -0500 | [diff] [blame] | 83 | SkFont fontStream( |
Ben Wagner | 37a06c0 | 2018-06-22 21:11:00 +0000 | [diff] [blame] | 84 | fontMgr->makeFromStream(distortableStream->duplicate(), |
Hal Canary | 3560ea7 | 2019-01-08 13:01:58 -0500 | [diff] [blame] | 85 | SkFontArguments().setVariationDesignPosition(position)), |
| 86 | kTextSize); |
| 87 | fontStream.setEdging(SkFont::Edging::kSubpixelAntiAlias); |
| 88 | |
| 89 | SkFont fontClone( |
| 90 | typeface->makeClone(SkFontArguments().setVariationDesignPosition(position)), kTextSize); |
| 91 | fontClone.setEdging(SkFont::Edging::kSubpixelAntiAlias); |
| 92 | |
| 93 | constexpr char text[] = "abc"; |
Ben Wagner | 37a06c0 | 2018-06-22 21:11:00 +0000 | [diff] [blame] | 94 | |
| 95 | canvasStream.drawColor(SK_ColorWHITE); |
Hal Canary | 3560ea7 | 2019-01-08 13:01:58 -0500 | [diff] [blame] | 96 | canvasStream.drawString(text, point.fX, point.fY, fontStream, paint); |
Ben Wagner | 37a06c0 | 2018-06-22 21:11:00 +0000 | [diff] [blame] | 97 | |
| 98 | canvasClone.drawColor(SK_ColorWHITE); |
Hal Canary | 3560ea7 | 2019-01-08 13:01:58 -0500 | [diff] [blame] | 99 | canvasClone.drawString(text, point.fX, point.fY, fontClone, paint); |
Ben Wagner | 37a06c0 | 2018-06-22 21:11:00 +0000 | [diff] [blame] | 100 | |
| 101 | bool success = bitmap_compare(bitmapStream, bitmapClone); |
| 102 | REPORTER_ASSERT(reporter, success); |
| 103 | } |
Hal Canary | 8a00144 | 2018-09-19 11:31:27 -0400 | [diff] [blame] | 104 | } |