blob: 7fb60e5d3c6d37c7c943fd8db303779a0a42b48a [file] [log] [blame]
/*
* Copyright 2014 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "include/core/SkCanvas.h"
#include "include/core/SkFont.h"
#include "include/core/SkFontMgr.h"
#include "include/core/SkTypeface.h"
#include "include/ports/SkFontMgr_fontconfig.h"
#include "tests/Test.h"
#include "tools/Resources.h"
#include <fontconfig/fontconfig.h>
static bool bitmap_compare(const SkBitmap& ref, const SkBitmap& test) {
for (int y = 0; y < test.height(); ++y) {
for (int x = 0; x < test.width(); ++x) {
SkColor testColor = test.getColor(x, y);
SkColor refColor = ref.getColor(x, y);
if (refColor != testColor) {
return false;
}
}
}
return true;
}
DEF_TEST(FontMgrFontConfig, reporter) {
FcConfig* config = FcConfigCreate();
// FontConfig may modify the passed path (make absolute or other).
FcConfigSetSysRoot(config, reinterpret_cast<const FcChar8*>(GetResourcePath("").c_str()));
// FontConfig will lexically compare paths against its version of the sysroot.
SkString distortablePath(reinterpret_cast<const char*>(FcConfigGetSysRoot(config)));
distortablePath += "/fonts/Distortable.ttf";
FcConfigAppFontAddFile(config, reinterpret_cast<const FcChar8*>(distortablePath.c_str()));
FcConfigBuildFonts(config);
sk_sp<SkFontMgr> fontMgr(SkFontMgr_New_FontConfig(config));
sk_sp<SkTypeface> typeface(fontMgr->legacyMakeTypeface("Distortable", SkFontStyle()));
if (!typeface) {
ERRORF(reporter, "Could not find typeface. FcVersion: %d", FcGetVersion());
return;
}
SkBitmap bitmapStream;
bitmapStream.allocN32Pixels(64, 64);
SkCanvas canvasStream(bitmapStream);
canvasStream.drawColor(SK_ColorWHITE);
SkBitmap bitmapClone;
bitmapClone.allocN32Pixels(64, 64);
SkCanvas canvasClone(bitmapClone);
canvasStream.drawColor(SK_ColorWHITE);
SkPaint paint;
paint.setColor(SK_ColorGRAY);
constexpr float kTextSize = 20;
std::unique_ptr<SkStreamAsset> distortableStream(
GetResourceAsStream("fonts/Distortable.ttf"));
if (!distortableStream) {
return;
}
SkPoint point = SkPoint::Make(20.0f, 20.0f);
SkFourByteTag tag = SkSetFourByteTag('w', 'g', 'h', 't');
for (int i = 0; i < 10; ++i) {
SkScalar styleValue =
SkDoubleToScalar(0.5 + i * ((2.0 - 0.5) / 10));
SkFontArguments::VariationPosition::Coordinate
coordinates[] = {{tag, styleValue}};
SkFontArguments::VariationPosition
position = {coordinates, SK_ARRAY_COUNT(coordinates)};
SkFont fontStream(
fontMgr->makeFromStream(distortableStream->duplicate(),
SkFontArguments().setVariationDesignPosition(position)),
kTextSize);
fontStream.setEdging(SkFont::Edging::kSubpixelAntiAlias);
SkFont fontClone(
typeface->makeClone(SkFontArguments().setVariationDesignPosition(position)), kTextSize);
fontClone.setEdging(SkFont::Edging::kSubpixelAntiAlias);
constexpr char text[] = "abc";
canvasStream.drawColor(SK_ColorWHITE);
canvasStream.drawString(text, point.fX, point.fY, fontStream, paint);
canvasClone.drawColor(SK_ColorWHITE);
canvasClone.drawString(text, point.fX, point.fY, fontClone, paint);
bool success = bitmap_compare(bitmapStream, bitmapClone);
REPORTER_ASSERT(reporter, success);
}
}