af9b8c8046
This CL also alters the raster path in two ways: it now respects the sRGB/linear distinction of its input it now respects the clip TBR=reed@google.com GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1879643003 Review URL: https://codereview.chromium.org/1879643003
131 lines
3.4 KiB
C++
131 lines
3.4 KiB
C++
/*
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* Copyright 2013 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 "gm.h"
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#include "SkAlphaThresholdFilter.h"
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#include "SkRandom.h"
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#include "SkSurface.h"
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#define WIDTH 500
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#define HEIGHT 500
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namespace {
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void draw_rects(SkCanvas* canvas) {
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SkPaint rectPaint;
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rectPaint.setColor(0xFF0000FF);
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canvas->drawRect(SkRect::MakeXYWH(0, 0, WIDTH / 2, HEIGHT / 2), rectPaint);
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rectPaint.setColor(0xBFFF0000);
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canvas->drawRect(SkRect::MakeXYWH(WIDTH / 2, 0, WIDTH / 2, HEIGHT / 2), rectPaint);
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rectPaint.setColor(0x3F00FF00);
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canvas->drawRect(SkRect::MakeXYWH(0, HEIGHT / 2, WIDTH / 2, HEIGHT / 2), rectPaint);
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rectPaint.setColor(0x00000000);
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canvas->drawRect(SkRect::MakeXYWH(WIDTH / 2, HEIGHT / 2, WIDTH / 2, HEIGHT / 2), rectPaint);
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}
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SkPaint create_filter_paint(SkImageFilter::CropRect* cropRect = nullptr) {
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SkIRect rects[2];
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rects[0] = SkIRect::MakeXYWH(0, 150, WIDTH, HEIGHT - 300);
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rects[1] = SkIRect::MakeXYWH(150, 0, WIDTH - 300, HEIGHT);
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SkRegion region;
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region.setRects(rects, 2);
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SkPaint paint;
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paint.setImageFilter(SkAlphaThresholdFilter::Make(region, 0.2f, 0.7f, nullptr, cropRect));
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return paint;
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}
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};
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namespace skiagm {
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class ImageAlphaThresholdGM : public GM {
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public:
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ImageAlphaThresholdGM(bool useCropRect) : fUseCropRect(true) {
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this->setBGColor(0xFFFFFFFF);
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}
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protected:
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SkString onShortName() override {
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if (fUseCropRect) {
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return SkString("imagealphathreshold_crop");
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}
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return SkString("imagealphathreshold");
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}
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SkISize onISize() override {
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return SkISize::Make(WIDTH, HEIGHT);
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}
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void onDraw(SkCanvas* canvas) override {
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SkMatrix matrix;
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matrix.reset();
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matrix.setTranslate(WIDTH * .1f, HEIGHT * .1f);
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matrix.postScale(.8f, .8f);
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canvas->concat(matrix);
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SkRect r = SkRect::MakeLTRB(100, 100, WIDTH - 100, HEIGHT - 100);
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SkImageFilter::CropRect cropRect(r);
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SkPaint paint = create_filter_paint(fUseCropRect ? &cropRect : nullptr);
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canvas->saveLayer(nullptr, &paint);
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draw_rects(canvas);
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canvas->restore();
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}
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private:
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bool fUseCropRect;
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typedef GM INHERITED;
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};
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class ImageAlphaThresholdSurfaceGM : public GM {
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public:
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ImageAlphaThresholdSurfaceGM() {
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this->setBGColor(0xFFFFFFFF);
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}
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protected:
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SkString onShortName() override {
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return SkString("imagealphathreshold_surface");
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}
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SkISize onISize() override {
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return SkISize::Make(WIDTH, HEIGHT);
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}
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void onDraw(SkCanvas* canvas) override {
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SkImageInfo info = SkImageInfo::MakeN32(WIDTH, HEIGHT, kOpaque_SkAlphaType);
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auto surface(canvas->makeSurface(info));
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if (nullptr == surface) {
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surface = SkSurface::MakeRaster(info);
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}
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surface->getCanvas()->clear(SK_ColorWHITE);
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draw_rects(surface->getCanvas());
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SkPaint paint = create_filter_paint();
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canvas->clipRect(SkRect::MakeLTRB(100, 100, WIDTH - 100, HEIGHT - 100));
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canvas->drawImage(surface->makeImageSnapshot().get(), 0, 0, &paint);
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}
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private:
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typedef GM INHERITED;
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};
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//////////////////////////////////////////////////////////////////////////////
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DEF_GM(return new ImageAlphaThresholdGM(true);)
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DEF_GM(return new ImageAlphaThresholdGM(false);)
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DEF_GM(return new ImageAlphaThresholdSurfaceGM();)
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}
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