85 lines
2.5 KiB
C++
85 lines
2.5 KiB
C++
/*
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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 "gm/gm.h"
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#include "include/core/SkBlurTypes.h"
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#include "include/core/SkCanvas.h"
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#include "include/core/SkColor.h"
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#include "include/core/SkFont.h"
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#include "include/core/SkImage.h"
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#include "include/core/SkImageFilter.h"
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#include "include/core/SkMaskFilter.h"
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#include "include/core/SkPaint.h"
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#include "include/core/SkRect.h"
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#include "include/core/SkRefCnt.h"
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#include "include/core/SkString.h"
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#include "include/core/SkTypeface.h"
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#include "include/effects/SkImageFilters.h"
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#include "tools/Resources.h"
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#include "tools/ToolUtils.h"
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#include <stdio.h>
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DEF_SIMPLE_GM(blurimagevmask, canvas, 700, 1200) {
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SkPaint paint;
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paint.setAntiAlias(true);
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paint.setColor(SK_ColorBLACK);
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SkFont font(ToolUtils::create_portable_typeface(), 25);
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const double sigmas[] = {3.0, 8.0, 16.0, 24.0, 32.0};
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canvas->drawString("mask blur", 285, 50, font, paint);
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canvas->drawString("image blur", 285 + 250, 50, font, paint);
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SkRect r = {35, 100, 135, 200};
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for (auto sigma:sigmas) {
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canvas->drawRect(r, paint);
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char out[100];
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sprintf(out, "Sigma: %g", sigma);
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canvas->drawString(out, r.left(), r.bottom() + 35, font, paint);
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r.offset(250, 0);
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paint.setMaskFilter(SkMaskFilter::MakeBlur(kNormal_SkBlurStyle, sigma));
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canvas->drawRect(r, paint);
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paint.setMaskFilter(nullptr);
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SkPaint imageBlurPaint;
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r.offset(250, 0);
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imageBlurPaint.setImageFilter(SkImageFilters::Blur(sigma, sigma, nullptr));
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canvas->saveLayer(nullptr, &imageBlurPaint);
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canvas->drawRect(r, paint);
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canvas->restore();
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r.offset(-500, 200);
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}
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}
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DEF_SIMPLE_GM_CAN_FAIL(blur_image, canvas, errorMsg, 500, 500) {
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auto image = GetResourceAsImage("images/mandrill_128.png");
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if (!image) {
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*errorMsg = "Could not load mandrill_128.png. Did you forget to set the resourcePath?";
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return skiagm::DrawResult::kFail;
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}
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SkPaint paint;
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paint.setMaskFilter(SkMaskFilter::MakeBlur(kNormal_SkBlurStyle, 4));
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// both of these should draw with the blur, but (formerally) we had a bug where the unscaled
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// version (taking the spriteblitter code path) ignore the maskfilter.
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canvas->drawImage(image, 10, 10, SkSamplingOptions(), &paint);
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canvas->scale(1.01f, 1.01f);
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canvas->drawImage(image, 10 + image->width() + 10.f, 10, SkSamplingOptions(), &paint);
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return skiagm::DrawResult::kOk;
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}
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