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/*
* 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 <fontconfig/fontconfig.h>
#include "Resources.h"
#include "SkCanvas.h"
#include "SkFontMgr.h"
#include "SkFontMgr_fontconfig.h"
#include "SkTypeface.h"
#include "Test.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();
SkString distortablePath = GetResourcePath("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()));
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 paintStream;
paintStream.setColor(SK_ColorGRAY);
paintStream.setTextSize(SkIntToScalar(20));
paintStream.setAntiAlias(true);
paintStream.setLCDRenderText(true);
SkPaint paintClone;
paintClone.setColor(SK_ColorGRAY);
paintClone.setTextSize(SkIntToScalar(20));
paintClone.setAntiAlias(true);
paintClone.setLCDRenderText(true);
std::unique_ptr<SkStreamAsset> distortableStream(
GetResourceAsStream("fonts/Distortable.ttf"));
if (!distortableStream) {
return;
}
const char* text = "abc";
const size_t textLen = strlen(text);
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)};
paintStream.setTypeface(sk_sp<SkTypeface>(
fontMgr->makeFromStream(distortableStream->duplicate(),
SkFontArguments().setVariationDesignPosition(position))));
paintClone.setTypeface(sk_sp<SkTypeface>(
typeface->makeClone(SkFontArguments().setVariationDesignPosition(position))));
canvasStream.drawColor(SK_ColorWHITE);
canvasStream.drawText(text, textLen, point.fX, point.fY, paintStream);
canvasClone.drawColor(SK_ColorWHITE);
canvasClone.drawText(text, textLen, point.fX, point.fY, paintClone);
bool success = bitmap_compare(bitmapStream, bitmapClone);
REPORTER_ASSERT(reporter, success);
}
}
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