/*
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* Copyright 2017 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include "SkBitmap.h"
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#include "SkCanvas.h"
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#include "SkHighContrastFilter.h"
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#include "Test.h"
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DEF_TEST(HighContrastFilter_FilterImage, reporter) {
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SkHighContrastConfig config;
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config.fInvertStyle = SkHighContrastConfig::InvertStyle::kInvertLightness;
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int w = 10, h = 10;
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SkBitmap filterResult, paintResult;
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filterResult.allocN32Pixels(w, h);
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SkCanvas canvasFilter(filterResult);
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canvasFilter.clear(0x00000000);
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paintResult.allocN32Pixels(w, h);
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SkCanvas canvasPaint(paintResult);
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canvasPaint.clear(0x00000000);
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SkPaint paint;
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paint.setColor(SK_ColorBLUE);
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SkRect r = SkRect::MakeLTRB(SkIntToScalar(2), SkIntToScalar(2),
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SkIntToScalar(8), SkIntToScalar(8));
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canvasPaint.drawRect(r, paint);
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paint.setColorFilter(SkHighContrastFilter::Make(config));
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canvasFilter.drawRect(r, paint);
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for (int y = r.top(); y < r.bottom(); ++y) {
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for (int x = r.left(); x < r.right(); ++x) {
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SkColor paintColor = paintResult.getColor(x, y);
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SkColor filterColor = filterResult.getColor(x, y);
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REPORTER_ASSERT(
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reporter, filterColor ==
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paint.getColorFilter()->filterColor(paintColor));
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}
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}
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}
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DEF_TEST(HighContrastFilter_SanityCheck, reporter) {
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SkHighContrastConfig config;
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config.fInvertStyle = SkHighContrastConfig::InvertStyle::kInvertLightness;
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sk_sp<SkColorFilter> filter = SkHighContrastFilter::Make(config);
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SkColor white_inverted = filter->filterColor(SK_ColorWHITE);
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REPORTER_ASSERT(reporter, white_inverted == SK_ColorBLACK);
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SkColor black_inverted = filter->filterColor(SK_ColorBLACK);
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REPORTER_ASSERT(reporter, black_inverted == SK_ColorWHITE);
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}
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DEF_TEST(HighContrastFilter_InvalidInputs, reporter) {
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SkHighContrastConfig config;
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REPORTER_ASSERT(reporter, config.isValid());
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// Valid invert style
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config.fInvertStyle = SkHighContrastConfig::InvertStyle::kInvertBrightness;
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REPORTER_ASSERT(reporter, config.isValid());
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config.fInvertStyle = SkHighContrastConfig::InvertStyle::kInvertLightness;
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REPORTER_ASSERT(reporter, config.isValid());
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sk_sp<SkColorFilter> filter = SkHighContrastFilter::Make(config);
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REPORTER_ASSERT(reporter, filter);
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// Invalid invert style
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config.fInvertStyle = static_cast<SkHighContrastConfig::InvertStyle>(999);
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REPORTER_ASSERT(reporter, !config.isValid());
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filter = SkHighContrastFilter::Make(config);
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REPORTER_ASSERT(reporter, !filter);
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// Valid contrast
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config.fInvertStyle = SkHighContrastConfig::InvertStyle::kInvertBrightness;
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config.fContrast = 0.5f;
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REPORTER_ASSERT(reporter, config.isValid());
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filter = SkHighContrastFilter::Make(config);
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REPORTER_ASSERT(reporter, filter);
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// Invalid contrast
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config.fContrast = 1.1f;
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REPORTER_ASSERT(reporter, !config.isValid());
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filter = SkHighContrastFilter::Make(config);
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REPORTER_ASSERT(reporter, !filter);
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}
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