2014-02-05 17:51:22 +00:00
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/*
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* Copyright 2014 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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2015-01-26 20:49:00 +00:00
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#include "sk_tool_utils.h"
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2014-02-05 17:51:22 +00:00
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#include "SkBlurImageFilter.h"
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2015-01-26 19:24:32 +00:00
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#include "SkColor.h"
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2014-02-05 17:51:22 +00:00
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#include "SkDisplacementMapEffect.h"
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#include "SkDropShadowImageFilter.h"
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#include "SkGradientShader.h"
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2015-09-15 18:26:13 +00:00
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#include "SkImage.h"
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#include "SkImageSource.h"
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2015-08-26 21:26:40 +00:00
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#include "SkLightingImageFilter.h"
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2014-02-05 17:51:22 +00:00
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#include "SkMorphologyImageFilter.h"
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#include "SkOffsetImageFilter.h"
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2016-01-08 22:58:35 +00:00
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#include "SkPaintImageFilter.h"
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2014-03-03 14:58:09 +00:00
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#include "SkPerlinNoiseShader.h"
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2015-08-26 21:26:40 +00:00
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#include "SkPoint3.h"
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2014-02-05 17:51:22 +00:00
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#include "SkScalar.h"
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2015-09-15 18:26:13 +00:00
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#include "SkSurface.h"
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2015-01-26 19:24:32 +00:00
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#include "gm.h"
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2014-02-05 17:51:22 +00:00
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2014-02-19 22:10:12 +00:00
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#define RESIZE_FACTOR_X SkIntToScalar(2)
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#define RESIZE_FACTOR_Y SkIntToScalar(5)
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2014-02-05 17:51:22 +00:00
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namespace skiagm {
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class ImageFiltersClippedGM : public GM {
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public:
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2015-09-03 20:32:33 +00:00
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ImageFiltersClippedGM() {
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2014-02-05 17:51:22 +00:00
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this->setBGColor(0x00000000);
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}
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protected:
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2015-03-26 01:17:31 +00:00
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SkString onShortName() override {
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2014-02-05 17:51:22 +00:00
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return SkString("imagefiltersclipped");
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}
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2015-03-26 01:17:31 +00:00
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SkISize onISize() override {
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2014-06-10 06:59:03 +00:00
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return SkISize::Make(860, 500);
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2014-02-05 17:51:22 +00:00
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}
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2015-09-03 20:32:33 +00:00
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void makeGradientCircle(int width, int height) {
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2014-02-05 17:51:22 +00:00
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SkScalar x = SkIntToScalar(width / 2);
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SkScalar y = SkIntToScalar(height / 2);
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2014-02-13 17:14:46 +00:00
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SkScalar radius = SkMinScalar(x, y) * 0.8f;
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2015-09-15 18:26:13 +00:00
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SkAutoTUnref<SkSurface> surface(SkSurface::NewRasterN32Premul(width, height));
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SkCanvas* canvas = surface->getCanvas();
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canvas->clear(0x00000000);
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2014-02-05 17:51:22 +00:00
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SkColor colors[2];
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colors[0] = SK_ColorWHITE;
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colors[1] = SK_ColorBLACK;
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SkPaint paint;
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2016-03-13 21:13:58 +00:00
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paint.setShader(SkGradientShader::MakeRadial(SkPoint::Make(x, y), radius, colors, nullptr,
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2, SkShader::kClamp_TileMode));
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2015-09-15 18:26:13 +00:00
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canvas->drawCircle(x, y, radius, paint);
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2016-03-17 17:51:11 +00:00
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fGradientCircle = surface->makeImageSnapshot();
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2014-02-05 17:51:22 +00:00
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}
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2015-07-21 15:38:06 +00:00
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static void draw_clipped_filter(SkCanvas* canvas, SkImageFilter* filter, size_t i,
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const SkRect& primBounds, const SkRect& clipBounds) {
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SkPaint paint;
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paint.setColor(SK_ColorWHITE);
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paint.setImageFilter(filter);
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paint.setAntiAlias(true);
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canvas->save();
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canvas->clipRect(clipBounds);
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if (5 == i) {
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canvas->translate(SkIntToScalar(16), SkIntToScalar(-32));
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} else if (6 == i) {
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canvas->scale(SkScalarInvert(RESIZE_FACTOR_X),
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SkScalarInvert(RESIZE_FACTOR_Y));
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}
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canvas->drawCircle(primBounds.centerX(), primBounds.centerY(),
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primBounds.width() * 2 / 5, paint);
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canvas->restore();
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}
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2015-09-03 20:32:33 +00:00
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void onOnceBeforeDraw() override {
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2016-03-17 17:51:11 +00:00
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fCheckerboard = SkImage::MakeFromBitmap
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(sk_tool_utils::create_checkerboard_bitmap(64, 64, 0xFFA0A0A0, 0xFF404040, 8));
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2015-09-03 20:32:33 +00:00
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this->makeGradientCircle(64, 64);
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}
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2015-01-26 19:24:32 +00:00
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2015-09-03 20:32:33 +00:00
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void onDraw(SkCanvas* canvas) override {
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2015-04-09 18:13:24 +00:00
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canvas->clear(SK_ColorBLACK);
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2014-02-05 17:51:22 +00:00
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2016-03-17 17:51:11 +00:00
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SkAutoTUnref<SkImageFilter> gradient(SkImageSource::Create(fGradientCircle.get()));
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SkAutoTUnref<SkImageFilter> checkerboard(SkImageSource::Create(fCheckerboard.get()));
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2014-03-03 14:58:09 +00:00
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SkAutoTUnref<SkShader> noise(SkPerlinNoiseShader::CreateFractalNoise(
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SkDoubleToScalar(0.1), SkDoubleToScalar(0.05), 1, 0));
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2014-03-25 17:35:10 +00:00
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SkMatrix resizeMatrix;
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resizeMatrix.setScale(RESIZE_FACTOR_X, RESIZE_FACTOR_Y);
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2015-08-26 21:26:40 +00:00
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SkPoint3 pointLocation = SkPoint3::Make(32, 32, SkIntToScalar(10));
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2014-02-05 17:51:22 +00:00
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SkImageFilter* filters[] = {
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SkBlurImageFilter::Create(SkIntToScalar(12), SkIntToScalar(12)),
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2014-07-22 19:49:25 +00:00
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SkDropShadowImageFilter::Create(SkIntToScalar(10), SkIntToScalar(10),
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2014-10-23 20:59:52 +00:00
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SkIntToScalar(3), SkIntToScalar(3), SK_ColorGREEN,
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SkDropShadowImageFilter::kDrawShadowAndForeground_ShadowMode),
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2014-03-10 10:51:58 +00:00
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SkDisplacementMapEffect::Create(SkDisplacementMapEffect::kR_ChannelSelectorType,
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SkDisplacementMapEffect::kR_ChannelSelectorType,
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SkIntToScalar(12),
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gradient.get(),
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checkerboard.get()),
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SkDilateImageFilter::Create(2, 2, checkerboard.get()),
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SkErodeImageFilter::Create(2, 2, checkerboard.get()),
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SkOffsetImageFilter::Create(SkIntToScalar(-16), SkIntToScalar(32)),
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2015-03-20 13:38:17 +00:00
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SkImageFilter::CreateMatrixFilter(resizeMatrix, kNone_SkFilterQuality),
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2015-08-26 21:26:40 +00:00
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SkLightingImageFilter::CreatePointLitDiffuse(pointLocation, SK_ColorWHITE, SK_Scalar1, SkIntToScalar(2), checkerboard.get()),
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2014-02-05 17:51:22 +00:00
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};
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SkRect r = SkRect::MakeWH(SkIntToScalar(64), SkIntToScalar(64));
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SkScalar margin = SkIntToScalar(16);
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SkRect bounds = r;
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bounds.outset(margin, margin);
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2015-07-21 15:38:06 +00:00
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canvas->save();
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2014-02-05 17:51:22 +00:00
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for (int xOffset = 0; xOffset < 80; xOffset += 16) {
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canvas->save();
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bounds.fLeft = SkIntToScalar(xOffset);
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for (size_t i = 0; i < SK_ARRAY_COUNT(filters); ++i) {
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draw_clipped_filter(canvas, filters[i], i, r, bounds);
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2014-02-05 17:51:22 +00:00
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canvas->translate(r.width() + margin, 0);
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}
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canvas->restore();
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canvas->translate(0, r.height() + margin);
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}
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2015-07-21 15:38:06 +00:00
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canvas->restore();
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2014-02-06 00:36:01 +00:00
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for (size_t i = 0; i < SK_ARRAY_COUNT(filters); ++i) {
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SkSafeUnref(filters[i]);
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}
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2015-07-21 15:38:06 +00:00
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2016-01-08 22:58:35 +00:00
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SkPaint noisePaint;
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noisePaint.setShader(noise);
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SkAutoTUnref<SkImageFilter> rectFilter(SkPaintImageFilter::Create(noisePaint));
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2015-07-21 15:38:06 +00:00
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canvas->translate(SK_ARRAY_COUNT(filters)*(r.width() + margin), 0);
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for (int xOffset = 0; xOffset < 80; xOffset += 16) {
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bounds.fLeft = SkIntToScalar(xOffset);
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draw_clipped_filter(canvas, rectFilter, 0, r, bounds);
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canvas->translate(0, r.height() + margin);
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}
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2014-02-05 17:51:22 +00:00
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}
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private:
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2016-03-17 17:51:11 +00:00
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sk_sp<SkImage> fCheckerboard, fGradientCircle;
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2015-09-03 20:32:33 +00:00
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2014-02-05 17:51:22 +00:00
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typedef GM INHERITED;
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};
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//////////////////////////////////////////////////////////////////////////////
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2015-09-03 20:32:33 +00:00
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DEF_GM(return new ImageFiltersClippedGM;)
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2014-02-05 17:51:22 +00:00
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}
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