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